The track section is the basic and definitive component of the curtain track system. UNITRACK has a track cross section profile formed from two pairs of square steel tubes 19mm x 19mm joined at 500mm centres with vertical 32mm x 12.5mm x 90mm long rectangular tubes to create continuous 12.5mm slots top and bottom. The upper pair provides a mounting for track suspension fittings and other accessories, whilst the lower pair provides the curtain runner wheel bearing surfaces, which are the top surfaces of those tubes.

The overall dimension of the track cross section is 100mm x 50mm and forms a very strong beam for carrying loads in a spanning mode. The construction of each track section is welded.

Straight track sections are available in various standard lengths starting from 250mm long TRA01, 500mm long TRA02, 1 metre long TRA03, and 2 metres long TRA04. The end vertical tubes of each track section length are drilled to accept an M8 track joining bolt. The finish of the track section is in black powder coat.
 

The track section is the basic and definitive component of the curtain track system. UNITRACK has a track cross section profile formed from two pairs of square steel tubes 19mm x 19mm joined at 500mm centres with vertical 32mm x 12.5mm x 90mm long rectangular tubes to create continuous 12.5mm slots top and bottom. The upper pair provides a mounting for track suspension fittings and other accessories, whilst the lower pair provides the curtain runner wheel bearing surfaces, which are the top surfaces of those tubes.

The overall dimension of the track cross section is 100mm x 50mm and forms a very strong beam for carrying loads in a spanning mode. The construction of each track section is welded.

Straight track sections are available in various standard lengths starting from 250mm long TRA01, 500mm long TRA02, 1 metre long TRA03, and 2 metres long TRA04. The end vertical tubes of each track section length are drilled to accept an M8 track joining bolt. The finish of the track section is in black powder coat

The track section is the basic and definitive component of the curtain track system. UNITRACK has a track cross section profile formed from two pairs of square steel tubes 19mm x 19mm joined at 500mm centres with vertical 32mm x 12.5mm x 90mm long rectangular tubes to create continuous 12.5mm slots top and bottom. The upper pair provides a mounting for track suspension fittings and other accessories, whilst the lower pair provides the curtain runner wheel bearing surfaces, which are the top surfaces of those tubes.

The overall dimension of the track cross section is 100mm x 50mm and forms a very strong beam for carrying loads in a spanning mode. The construction of each track section is welded.

Straight track sections are available in various standard lengths starting from 250mm long TRA01, 500mm long TRA02, 1 metre long TRA03, and 2 metres long TRA04. The end vertical tubes of each track section length are drilled to accept an M8 track joining bolt. The finish of the track section is in black powder coat.
 

This component is designed for attaching Unitrack to tube or truss from 38mm to 52mm diameter. It is of heavy-duty construction made up of a number of machined Aluminium extrusions..

This component has been tested to a 200Kg Safe Working Load.
 

The track section is the basic and definitive component of the curtain track system. UNITRACK has a track cross section profile formed from two pairs of square steel tubes 19mm x 19mm joined at 500mm centres with vertical 32mm x 12.5mm x 90mm long rectangular tubes to create continuous 12.5mm slots top and bottom. The upper pair provides a mounting for track suspension fittings and other accessories, whilst the lower pair provides the curtain runner wheel bearing surfaces, which are the top surfaces of those tubes.

The overall dimension of the track cross section is 100mm x 50mm and forms a very strong beam for carrying loads in a spanning mode. The construction of each track section is welded.

Straight track sections are available in various standard lengths starting from 250mm long TRA01, 500mm long TRA02, 1 metre long TRA03, and 2 metres long TRA04. The end vertical tubes of each track section length are drilled to accept an M8 track joining bolt. The finish of the track section is in black powder coat.
 

This component is a floor return pulley for the track operating cord designed for use on fixed position track systems. It can be screwed to the floor or weighted and cord tensioning can be achieved by adjusting the height of the pulley, which is mounted across the vertical slots in the side plates. The sheave axle is fitted on each side with thumb-screw nuts and washers.

The two steel side plates each have 200mm x13mm vertical slide slots and right angles flanges at the base drilled with 2 holes for floor fixing screws. They are spaced apart by 3 welded spacer bushes, one at the top centre and the other 2 near the base flanges.

A 90mm diameter Nylon sheave is fitted and the finish of the metalwork on the mounting is matt black. The overall dimensions of the Adjustable Floor Pulley are 300m high x 90mm wide x 75mm at base.
 

This component is of heavily constructed fabrication and is designed for operating the leading edges of curtains. Individual cord clamps are provided on each side of the clamp arm to enable cord tensioning to be easily achieved.

The main body of the master runner forming the 'U' stirrup comprises of five pieces of profiled steel with assembly lugs and slots, which are then welded together. Three of the pieces make up the 'U' and the two extra pieces box the ends to stiffen the construction. The eight black 40mm diameter flanged plastic ball raced wheels are bolted to the side plates using self-locking nuts positioned on the outsides of the stirrup. The attachment arm is bolted to one of the side plates of the stirrup and is formed from a mounting plate with two holes for attachment bolts and carrying two profiles arms braced apart with small welded plate spacers. The top of the vertical part of the two arms carries the cord clamps, one on the outer side of each arm. The two arms are connected across their ends by two profiled steel plates with assembly lugs engaging in slots in the ends of the arms and welded. The cord termination path passes up between the two plates over a notch in the top of the arm and back to the cord clamp. The arm design positions the two plates on the cord line permitting them to pass between the capstan pulleys and the lower part of the two plates are sleeved with black rubber to ensure silent running. The overall dimension of the component is 261mm high measured to the eye on the master runner and the projection of the component from the centre line of the track is 114mm. The metalwork is finished in matt black.
 

This component is designed to bolt on to the top of the track and guides the operating cord around the top of the track system. On curved track sections the Curve Cord Guide should be positioned at 500mm centres and on straight sections 2 metres apart.

The assembly comprises of 3 black plastic ball raced capstan pulleys 40mm diameter mounted on a 40mm wide metal plate x 140 long. The capstan pulleys are mounted as a close pair and a single with cross slot countersunk screws both on the top of the sheave bearing and on the underside of the plate. A narrow steel strip is welded to the underside of the main pulley mounting strip between the pair and single pulley and this has  downward projecting 45 degree lugs. The purpose of the lugs is to locate the assembly in its correct track alignment. The top plate holds an M12 bolt captive for fixing either to Unitrack or Unibeam. All metalwork is finished in matt black.
 

This component is designed to divert the operating cords either upwards to a motor or downwards to a floor pulley. It locates on the extreme end of a track section bolting to it using the hole for the track joining bolt on the vertical tube of the track and another bolt to the top of the track.

The Curve Head Pulley comprises two 90mm diameter black Nylon sheaves bolted through and to the outside of a pair of vertical profiled steel plates, which are braced apart with narrow steel strips. Cord 'keeps' are located at top '12 o'clock' position to trap the cord in the groove of the sheaves and these are formed as a threaded stud, two threaded bushes and two short set screws. The ends of the profiled side plates are welded to a horizontal cruciform-shaped base plate, which sits along the top of the track and has a fixing point at its extremity for an M12 bolt. Three black plastic ball raced capstan pulleys 40mm diameter are set close to one another in a line and are mounted on base plate strip, which sits across the cruciform and is secured to it. The Curve Head Pulley projects 94mm beyond the end of the track and is 224mm long overall.
 

The Curve master runner carries a specially designed attachment arm to enable a connection to the operating cord above the track. The basis is the standard Master runner TRA 07 plus a bolted-on arm locating on two holes on the side of the stirrup. The top hole is between the upper wheels of the master runner and the other hole is the lower of the two to be found between the lower pair of wheels. The attachment plate carries a flat steel profiled curved arm terminating in a special clamping plate positioned to carry the cord past and between the single capstan pulley and the pair on the Curve cord guides TRA 19.

The profiled arm projects 97mm from the track centre line. All metalwork is finished matt black. The Curve master runner has a Safe Working Load of 150Kg.
 

This component is similar to TRA 20 but is designed for use on much longer track runs. The steel 'U' stirrup is fabricated from five pieces of profiled steel with assembly lugs and slots, which are then welded together. Three of the pieces form the stirrup and two small extra pieces box the ends of the 'U' stirrup to stiffen the construction. The eight black flanged plastic ball raced wheels are bolted to the side plates using self-locking nuts positioned on the outer sides of the stirrup. The attachment arm is bolted to one of the side plates of the stirrup and is formed from a mounting plate with two profiled arms braced apart with small welded plate spacers. The top of the vertical part of the two arms carries the cord clamps, one on the outer side of each arm. The two arms are connected across their ends by a single specially profiled plate which serves to divert the cord from both directions up and back to the individual cord clamps. The arms are designed to position this plate on the cord line and permit it to pass between the single and the pair of capstan pulleys. The profiled arms project 114mm from the centre of the track.

This component is designed to divert the operating cord above the track back towards the head pulley. It comprises one 90mm diameter black Nylon sheave and two 40mm diameter black plastic ball raced capstan sheaves mounted on a thin sheet steel base plate which in turn is fastened to a thicker profiled steel base having two 13mm diameter attachment holes to enable the fitting to be fastened to the top of the track. The overall length of the component is 200mm.

This component is designed for use with other suspension components such as TRA 13, TRA 14N, TRA 15, TRA 16, and TRA 18. The top holes work as an offset plate on curve tracks that overlap and are suspended from a single tube or pipe.

The Curve Suspension Bracket comprises two 80mm square steel plates spaced apart by a short section of round steel tube to provide a 90mm clearance from the top of the track for the suspension fittings and permitting the installation of the top of the track cording components. Both top and bottom plates have three matching 13mm holes set parallel to the edges of the plates.
 

Standard Curve, curved track section, 1 metre radius, 90 degrees.

Standard Curve, curved track section, 1.5 metre radius, 90 degrees.

Standard Curve, curved track section, 2 metre radius, 90 degrees.

Standard Curve, curved track section, 3 metre radius, 90 degrees. This track is made up of 2 X 45 degree track each 2.35M long sections and includes a joint set.

This component is used to suspend tracks by rope cordage or wire rope. It comprises a forged fitting having a threaded bush M12 with a solid tubular loop springing from the top outer edges of the bush. It has a test rating of 150Kg Safe Working Load.

This component is designed to guide two sets of operating cords around the top of the track system supporting the cords between the head and the return pulleys.

The component comprises a cruciform steel base plate with the projecting lugs drilled with 13mm diameter holes for M12 attachment bolts. Across the track line are six 40mm black Nylon ball raced capstan pulleys set as two groups of three one above the other and separated by a steel strap 40mm wide. The outer capstan pulleys are at 132mm centres and the middle ones on the centre line. The overall dimension of the component are 173mm x 70mm x 75mm high. The metal work is finished matt black
 

This component is designed to divert the operating cords down to the motor, hand TRAC-DRIVE or floor pulley.

The Double Cord Head Pulley comprises two profiled heavy steel back plates 383mm long x 130mm welded to a base plate 50mm wide x 187mm long having two 13mm holes backed by M12 nuts between the plates for track attachment. The plates stand up 70mm above the top of the track and project 60mm below the top of the track and 196mm beyond the end of the track. Mounted on the plates are two pair of 90mm diameter black plastic sheaves in tandem with the outer ones set 35mm higher than the inner one. Cord keeps are fitted to all sheaves at 45 degrees above the horizontal axis mounted on profiled steel strip arms attached to the axle bolts for the sheaves and to the back plate. The metalwork is finished in matt black.
 

This component is fitted to the end of the track to divert the cords back to the head pulley

The Double Side Cord Return Pulley comprises of two profiled heavy steel back plates 185mm long x 133mm high welded to a base plate 50mm wide x 185mm long and having two 13mm holes backed by M12 nuts between the plates for track attachment.. The plates stand up 133mm above the top of the track and provide a mounting for two pair of 90mm diameter black Nylon ball raced sheaves in tandem with the outer ones set 35mm lower than the inner ones. Cord keeps are fitted to all sheaves at 45 degrees below the horizontal axis and mounted on profiled steel strip arms attached to the axle bolts for the sheaves and to the back plates. The metalwork is finished matt black.
 

This component is designed for use with other suspension component such as TRA 13, TRA14N, TRA 15, TRA 16, and TRA 18. The vertical tube member is designed to align with the track centre line.

This component is designed for use on the ends of all track runs to anchor the trailing edge of the curtain. It comprises a Laser profiled plate with a return follded out at 90 degrees to allow fixing to the track. It is attached with an M12 size bolt.

This component is designed for use on scenery tracks where there is no requirement to anchor the trailing edge of a curtain. It consists of a flat steel trip which straddles the top of the track running rails and has an 13mm hole backed by an M12 nut set central plus a downward projecting 45 degree lug 12mm wide on one side of the strip. Two rectangular black rubber sleeves are fitted.

This component is a floor return pulley for the track operating cord designed for use on flown or movable track systems. The stirrup at the base is designed to be used by placing a foot into it and pressing down to the floor surface in order to tension the operating cord. Alternatively 2 holes are provided in the base strap so that the stirrup can be screwed to the stage floor.

The 90mm diameter black Nylon sheave is contained within its own narrow metal stirrup bracket, which in turn is bolted to the tops of the main foot stirrup formed strap.

The overall dimensions of the Foot Stirrup Pulley are 300mm high x 150mm wide at the base x 25mm wide strap.
 

This component is designed to provide a suspension point for a track from the flanges of an 'I' beam. It comprises of a length of pressed steel lipped box channel and 2 square 'U' bolts each attached to cranked rectangular clamp plates.

Any width or thickness flange of a rolled steel joist beam can be accommodated. The suspension is achieved using either a TRA 18 Studding Set or a TRA 15 Deadline Fixing plus M12 set bolt, together with a special spring nut, which is designed to engage in the box channel.

Safe Working Load data is available on request.
 

The hand TracDrive is a simple compact hand winch, which is designed to operate corded tracks where hand pulling is not suitable. It can be retro fitted to a system.

The unit comprises of a rectangular steel back plate 320mm wide x 333mm high drilled in each corner with a 13mm hole to accept the wall fixings. The plate carries an assembly of three 40mm diameter ball raced black plastic capstan pulleys mounted in a line on a steel strip which is attached to two guide tubes. The tubes are a sliding fit on two vertical guide rods, which have long coil springs beneath the pulleys to keep them tensioned upwards. Set central and below the three pulleys is a steel winding shaft with an end bearing bolted to the back plate. The shaft has a 150mm diameter twin grooved aluminium alloy sheave mounted on it aligned with cord line on the capstan pulleys. Four 90mm long stand-off studs are fastened to the backplate with the ends tapped to accept fixings screws to secure a smaller steel front plate 220mm wide x 333mm high. The front plate carries the front end winding shaft support bearing secured with two bolts. The 30mm diameter winding shaft protrudes beyond the front plate by 50mm and 212 sweep winding handle is fitted which has a folding handle grip.

The unit housing has a projection from the wall lime of 99mm plus a folded handle projection of 95mm. When the handle is opened to operate the winch the projection increases to188mm. All metal work is finished matt black.
 

The hand TracDrive is a simple compact hand winch, which is designed to operate corded tracks where hand pulling is not suitable. It can be retro fitted to a system.

The unit comprises of a rectangular steel back plate 320mm wide x 333mm high drilled in each corner with a 13mm hole to accept the wall fixings. The plate carries an assembly of three 40mm diameter ball raced black plastic capstan pulleys mounted in a line on a steel strip which is attached to two guide tubes. The tubes are a sliding fit on two vertical guide rods, which have long coil springs beneath the pulleys to keep them tensioned upwards. Set central and below the three pulleys is a steel winding shaft with an end bearing bolted to the back plate. The shaft has a 150mm diameter twin grooved aluminium alloy sheave mounted on it aligned with cord line on the capstan pulleys. Four 90mm long stand-off studs are fastened to the backplate with the ends tapped to accept fixings screws to secure a smaller steel front plate 220mm wide x 333mm high. The front plate carries the front end winding shaft support bearing secured with two bolts. The 30mm diameter winding shaft protrudes beyond the front plate by 50mm and 212 sweep winding handle is fitted which has a folding handle grip.

The unit housing has a projection from the wall line of 99mm plus a folded handle projection of 95mm. When the handle is opened to operate the winch the projection increases to188mm. All metal work is finished matt black.
 

A joint set is used to connect two adjoining track sections, straight or curved, and comprises of 1 joint bolt M8 with a nut and 2 washers pus four square steel spigots.

The spigots are a close sliding fit inside the ends of the track section tubes and are inserted half their length into the ends of one track section before the other track section to be joined is offered up to receive the other halves of the spigot tubes. When the ends of the track sections abut the joining bolt is passed through the centre holes of the end vertical tubes with a washer under the head, the other washer and the nut added to the threaded end of the bolt before being tightened up to secure the track joint. It is not necessary to over tighten the bolt.
 

This component is designed to be used on straight tracks on the return side of the operating cord to prevent the slack line drooping into vision. It is recommended that this fitting is used at 2.5 metre centres where the cord is unsupported.

The Line Pickup comprises a steel strap formed into an inverted 'L' shape and having the bottom of the vertical curved back up into a 'U' shape to contain the operating cord. At the other end along the top the end is turned down to from a lip to act as a stop against the side of the track rail and has a 13mm mounting hole  to accept an M12 bolt. The dimension from the top of the bracket to inside the bottom cord support is 150mm.
 

The Master Runner is used for the leading edge of curtains and to clamp the cord on corded systems. Each Master Runner is capable of supporting a safe working load of 50Kg.

Four pairs of flanged plastic ball raced wheels are fastened to a wide 'U' shaped metal strap forming the 'stirrup' which two metal eye loops centrally placed 55mm apart on the underside for attaching the leading edge of the curtain. The upper pairs of wheels roll along the top of the running rails of the track and the lower pairs are in close engagement with the underside of the running rails to ensure stability and support. A cord clamping strip is positioned centrally between the eye loops and inside the stirrup, fastened by two 8mm button head screws , which are adjusted from below using a 5mm Allen Key.

Three further holes are located on the vertical centre line of each side of the 'U' shaped stirrup for attaching other accessories.

The overall width of the Master Runner is 96mm and the finish is matt black.
 

The Overlap Arms are usually used in pairs fitted to each Master Runner on opposite sides of the track to one another to create a curtain overlap on a single track.

The arm is a stIff laser profiled plate that attaches to one side of the Master Runner with M6 bolts and Nyloc nuts. The curtain attaches to the holes in the plate and provides an overlap of 50cm.

The overall length of the arm is 400mm and the finish is matt black.
 

The Master Runner is used for the leading edge of curtains and to clamp the cord on corded systems; this variant Master Runner is used fitted with an adjustable cord clamp on single corded tracks. The Master Runner is capable of supporting a safe working load of 50Kg.

Four pairs of flanged plastic ball raced wheels are fastened to a wide 'U' shaped metal strap forming the 'stirrup' which two metal eye loops centrally placed 55mm apart on the underside for attaching the leading edge of the curtain. The upper pairs of wheels roll along the top of the running rails of the track and the lower pairs are in close engagement with the underside of the running rails to ensure stability and support. A cord clamping strip is positioned at one end of the master outboard of the stirrup on a bracket having a slotted hole across the track line and secured back to the fixing positions between the eye loops and inside the stirrup, fastened by two 8mm button head screws , which are adjusted from below using a 5mm Allen Key.

Three further holes are located on the vertical centre line of each side of the 'U' shaped stirrup for attaching other accessories.

The overall width of the Master Runner with cord clamp outside the stirrup is 116mm. The finish of the wheels and body is matt black.
 

This component is designed to be used with hook clamps TRA14 when an overlap track is suspended from a single pipe or tube. They ensure that the track hangs centrally to the tube.

The Offset Plate comprises of a shaped steel plate carrying three 13mm holes, two attach into the track and the third is offse by 40mmm for attachment to the hook clamp.

This component is used on both straight and curved tracks to maintain 80mm track centre and to keep tracks rigid where they overlap. For the latter provision they are always used in pairs.

The Overlap Clip Set comprises two heavy steel strips, the lower one flat 130mm long and drilled with three 13mm diameter holes the outer ones at 80mm centres and backed with M12 nuts, and the upper strip having lipped ends 130mm inside to straddle two adjoining track sections 80mm apart and drilled with three 13mm diameter holes, the outer ones being at 80mm centres. The finish is matt black.
 

Cord / Handline, 8 Plait, 8mm diameter prestretched matt black polyester cord used to operate all Triple E track systems, manual and motorised.

On curved tracks to prevent the runner sticking or jamming a 4 wheeled runner is designed to be used.

A four wheeled carrier or trolley is used to attach and support a curtain or scenic cloth and each is capable of supporting a safe working load of 25Kg.

The upper pair of flanged plastic ball-raced wheels roll along the running rails of the track and lower pair are in close engagement with the underside of the running rails. Both pairs of wheels are fastened to a 'U' shaped metal strap forming the 'stirrup which has metal eye loop centrally placed on the underside for attaching the curtain hook. Four rectangular rubber sleeves, two on each vertical arm of the stirrup and which project beyond the wheel diameter, act as resilient impact buffers to reduce the noise when the runners come together in a curtain bunch.

Two further holes are provided located on the blade of the stirrup either side of the curtain eye loop; these are to enable other accessories to be retro fitted.

A 4 wheeled runner can only be added to a track system at one end of the layout, after the end stop has been removed.

The overall width of the 4 wheeled runner measured over the black rubber sleeves is 40mm. The finish of the wheels and body is matt black.
 

A twin wheeled carrier or trolley used on straight tracks to attach and support a curtain or scenic cloth. A rearfold runner is identical to a 2 wheeled runner but with the addition of a rearfold accessory fitted. This will cause the curtain to stack at the rear or offstage end of the curtain instead of at the centre. They are usually spaced at 300mm centres along the top of the curtain or cloth and each is capable of supporting a safe working load of 25Kg.

The two flanged plastic ball raced wheels roll along the running rails of the track and these wheels are fastened to a 'U' shaped metal strap forming the 'stirrup' which has a metal eye loop centrally placed on the underside for attaching the curtain hook. Four rectangular rubber sleeves, two on each vertical arm of the stirrup and which project beyond the wheel diameter, act as resilient impact buffers to reduce the noise caused when the runners come together in a curtain bunch.

Two further holes are provided located on the base of the stirrup either side of the curtain eye loop. The Rearfold accessory is bolted to the stirrup using two small bolts and self-locking nuts. It comprises of a rectangular plate with a tag fastened to a link of a roller chain and to which another shaped plate is attached having a 9mm diameter hole in it to accept the track operating cord and the plate is large enough to make contact with the resilient rubber sleeves fitted on the runner. The attachment bolts must be fitted so that the heads are between the underside of the track tubes and the stirrup. The tag with the cord hole is positioned on the rear or offstage side of the 2 wheeled runners when assembling the Rearfold runner into the system.

A hard plastic flat 'keeper' bar mounted vertically on edge engages with the lower sides to the stirrup at a position where the top edge is just clear of the underside of the track running rails. The bar is a semi-flexible strip spanning the inside width of the 'U' stirrup with two short prongs each end locating in two holes in each arm of the stirrup. Its purpose is to ensure that the wheeled carrier remains upright on the track rails and cannot be dislodged. With the Rearfold accessory fitted and the cord threaded through the plate it is not possible to add or remove Rearfold runners. The cord must be removed from the track system first.
 

This accessory may be retro-fitted to a 2 Wheeled Runner TRA 06 in order to convert it to a TRA 06r on straight tracks and to a 4 Wheeled Runner TRA 06c in order to convert it to a TRA 06cr for curved tracks.

It comprises of a rectangular steel plate with two attachment holes and a tag fastened to a link of a roller link chain and to which another shaped plate is attached having a 9mm diameter hole in it to accept the track operating cord. The plate is large enough to make contact with the resilient rubber sleeves fitted on the runner.

The attachment holes on the runners are located centrally on the base of the metal stirrup either side of the curtain eye loop. The attachment bolts must be fitted so that the heads are between the underside of the track tubes and the stirrup. The tag with the cord hole is positioned on the rear or offstage side of the wheeled carriers when assembling the completed Rearfold Runner into the system.
 

This fitting is designed to be used at the opposite end of a straight track system from the Head Pulley TRA 09 and diverts the cord back along the track in the opposite direction. The assembly comprises a 90mm diameter Nylon sheave mounted within its own narrow metal stirrup bracket, which is in turn bolted to a right angled mounting plate 120mm x 70mm x 130mm wide. Four welded nuts M12 are aligned with normal overlapped track centres to enable the assembly to be clamped to the underside of a track section using hexagonal headed set bolts and washers.

The Return Pulley projects 70mm below the underside of the track section. The finish of the sheave and the metalwork is matt black.
 

This arm attaches to the side of a TRA28A scenery carrier top to enable scenery to be operated on a curved, corded track system. This component can also be used to convert a TRA07 curtain master carrier from straight track use to curved track use.

This component can be retro fitted to a TRA 28AHD Heavy Duty Scenery Carrier to enable the scenery Carriers on a curved track to be cord operated.

The arm is designed to bolt to the holes on the side plates of the scenery carrier. The attachment plate carries twin profiled steel arms braced apart by small welded plate spacers. The top of the vertical part of the two arms carries the two cord clamps, one on the outer side of each arm. The two arms are connected across their ends by a single specially profiled plate which serves to divert the cord from both directions up and back to the individual cord clamps. The arms are designed to position this plate on the cord line and permit it to pass between the single and pair of capstan pulleys. The profiled arms project 114mm from the centre of the track.
 

This component can be retro fitted to TRA 28A and TRA 28AHD for full scenery carrying capacity and caters for scenery of varying thickness from 6mm to 44mm.

The fitting comprises two rectangular flat steel plates 80 wide x 96 high drilled with seven holes. Four of the holes are on an angled square pattern are countersunk for wood screw fixings into the scenery, a centre hole is for a security bolt fixing through both plates and the scenery, and the top two holes are for the suspension bolts and spacer bushes attaching the lower pair of plates to a heavy profiled plate. This plate is 80mm wide x 50mm high and has a 40mm wide x 20mm cut out in the top edge with welded tubular bushes either side set horizontally to accept an M8 bolt. This pivot bolt also passes through the sides of a small formed 40 x 40 channel yoke and in the top of this inverted 'U' is a 13mm diameter hole through which an M12 stud bolt is secured. When fitted to the Scenery Carrier TRA 28 top, 0 to 33mm of vertical adjustment of the suspended scenery is possible. The design permits the suspended scenery to pivot across the line of the track.
 

This component is designed similar to a Master Runner TRA 07s but without the two metal eye loops on the underside. Instead a centrally placed 13mm hole is provided in the base of the carrier stirrup to accept an M12 stud bolt. This component is mainly used in conjunction with the Scenery carrier bottom TRA 28B. The carrier has a Safe Woking Load of 50Kg. The finish is matt black.

This component is capable of carrying a much heavier load than the standard Scenery Carrier and has a Safe Working Load of 100Kg.

The heavy Duty Scenery Carrier has a wider 'U' shaped body across the 'U' and is also longer. The increase in the dimensions is to accommodate stiffening webs at each extreme ends of the body stirrup and also to provide space to mount the four extra side wheels. The main top and bottom wheels are not flanged. The carrier is designed to carry heavy items on both straight and curved track systems where the additional weight would normally damage the flanges. The carrier can be used in conjunction with the scenery carrier bottom TRA 28B. All twelve ball race wheels are bolted to the bodywork of the carrier.
 

This component is designed to be used when curtains or scenery need to meet at the centre of the track run.

The fitting comprises of an inverted 'L' shaped wide steel bracket 125mm wide x 170 high having two 13mm holes backed my M12 nuts on the top and set back 25mm from the outer edge. The vertical arm of the fitting has four 40mm diameter black ball raced capstan pulleys mounted at 85mm x 60mm centres. The top capstan pulleys have a solid steel bush cord keep mounted at the 12 o'clock position and the lower pair at the 6 o'clock position.

When track mounted the component projects 98mm from the track centre line. All the metalwork is finished in matt black
 

Together these three components divert the cord to and from the floor pulley or motor. Two of the required fittings are identical and are designed to be used at the outer ends of the track run, one as a return pulley for the cord and the other as one of the drop pulleys. The other fitting has a sheave mounted lower on the bracket and is used for the other drop pulley.

The mounting brackets for all three components are formed as an inverted 'L' from steel strap 170mm x 110mm x 40mm wide. Set back 25mm from the outer end on the horizontal arm is 13mmm hole backed with an M12 nut alongside a 12mm diameter downward projecting plain bush. This locates into the top slot of the track to maintain the component in correct alignment. The vertical arm carries a 90mm diameter black Nylon ball raced sheave, which on two of the components in the set are located 85mm from the top of the fitting and has solid bush cord keeps fitted at both the 12 o'clock and 6 o'clock positions. The third component has the 90mm diameter black Nylon ball raced sheave set 80mm lower to align with cord line centres. This sheave has a solid bush cord keep mounted at the 12 o'clock position.

When track mounted these component project 98mm from the centre line of the track. All metalwork is finished matt black.
 

This component is designed to be retro fitted to a Master Runner TRA 07 or Scenery Carrier TRA 28 and is used to secure the cord.

The component bolts on to an existing hole in the side of the stirrup on the master located between a lower pair of wheels. It comprises of two 25mm diameter x 20mm long steel bushes 120mm apart joined by a 32mm steel strap welded at each end to the sides of the bushes. The strap is drilled with three holes, two for clearance over the wheel rivets, and the centre for the attachment bolt. The outer bushes are fitted with longer inner bushes 45mm long, which project into the carrier and drilled and tapped through the underside for an M5 cheese head cord clamping screw. The projection into the plan line of the carrier permits the cord on the slave runner to pass across the face of the lower carrier wheels. The metalwork is finished matt black.
 

This component is designed to support the cord and prevent sag over long distances. It should be located along the track run at between 2 and 4 metre centres. The 'flipper' stops the cord from falling out of the guide whilst allowing the master or scenery carrier to pass through.

The Side Cord Guide comprises an inverted 'L' shaped steel strap mounting 170mm x 110mm x 40mm having on the end of the top arm a 13mm hole backed by an M12 nut alongside a 12mm diameter downward projecting plain bush. This locates into the top slot of the track to maintain the component in correct alignment. The vertical arm of the mounting carries two 40mm diameter black Nylon ball raced capstan pulleys mounted one above the other 100mm apart. Above the top capstan pulley is a cord keep bush, to trap the cord, and which carries a pivoting plate referred to as a 'flipper' and the lower end of which reaches the centre of the bottom capstan pulley. A close fitting black plastic sleeve is fitted on the lower end of the 'flipper' to both add weight to assist its return to the vertical and to reduce friction and noise as it comes into contact with the passage of the master runner. The top end of the 'flipper' is radius profiled to provide clearance inside the mounting as it pivots.

The overall dimensions of the side cord guide are 180mm high x 122m wide.
 

This component is designed especially for use on a single track to enable the cording to be kept compact within the track plan. It comprises an inverted 'U' shaped steel strip stirrup with tapered sides carrying two 40mm diameter black plastic ball raced capstan pulleys mounted side by side on the same axle and with a fixed cord keep at the '12 o'clock' position. On the centre line inside the top of stirrup are two 13mm holes faced with M12 nuts to provide for fixing the fitting to the track. The ends of the pulley axle pin are capped with black plastic covers.

The fitting measures 87mm wide x 70mm long x 80mm high and the metalwork is finished matt black.
 

This component is designed especially for use on a single track to enable the cording to be kept compact within the track plan. It comprises of a fabricated steel box tube with the sides cut at a converging taper. In the base is a hole to accept the axle pin for a 40mm diameter black plastic ball raced capstan pulley. The protruding end of the axle is capped with a black plastic cover. At the top of the box housing are two 13mm holes set on the centre line and faced with M12 nuts to provide for fixing the fitting to the track.

The fitting measures 50mm wide x 120mm long (top); 25mm long (bottom) x 65mm high and the metalwork is finished matt black.
 

A twin wheeled carrier or trolley used on straight tracks to attach and support a curtain or scenic cloth. They are usually spaced at 300m centres along the top of the curtain or cloth and each is capable of supporting a safe working load of 25Kg.

The two flanged plastic ballraced wheels roll along the running rails of the track and these wheels are fastened to a 'U' shaped metal strap forming the 'stirrup' which has a metal eye loop centrally placed on the underside for attaching the curtain hook. Four rectangular rubber sleeves, two on each vertical arm of the stirrup and which project beyond the wheel diameter, act as resilient impact buffers to reduce the noise caused when the runners come together in a curtain bunch.

Two further holes are provided located on the base of the stirrup either side of the curtain eye loop; these are to enable other accessories to be retro-fitted.

A hard plastic flat 'keeper' bar mounted vertically on edge engages with the lower sides to the stirrup at a position where the top edge is just clear of the underside of the track running rails. The bar is a semi-flexible strip spanning the inside width of the 'U' stirrup with two short prongs each end locating in two holes in each arm of the stirrup. Its purpose is to ensure that the wheeled carrier remains upright on the track rails and cannot be dislodged. Theatre tracks often require runners to be added or removed from any point along the track with the minimum of disturbance to the rest of the track assembly and the easily removed 'keeper' bar enables this to be achieved.

The overall width of the 2 wheeled runner measured over the black rubber sleeves is 40mm. The finish of the wheels and body is matt black.
 

This component comprises a 150mm length of M12 studding supplied with four nuts and washers. Longer lengths of studding are available on request.

This component is used with TRA 13 Girder Clamp and TRA 16 Wall Bracket Set.
 

This component is designed to be used to attach a track to a wall or vertical surface. It comprises of a 'L' shaped bracket formed from a flat steel plate and 2 Laser profiled side arms. The side arms are spaced 13mm apart to allow studding or threaded rod to attach into the top of any of track systems.

This component has been tested to a 100Kg Safe Working Load at 200mm reach.