摘要:
A direct fixation fastener comprising: a top plate; a bottom plate made of metal structural channel providing two spaced-apart side walls, wherein the bottom plate has a first end and a second end and wherein each of the first and second ends terminate in a first flat edge section and a second flat edge section, respectively, without spaced-apart side walls; first and second angle bars, wherein the first angle bar is attached to the first flat edge section and the second angle bar is attached to the second flat edge section; and an elastomeric layer disposed between the top plate and the bottom plate, between the top plate and angle bars and between the angle bars and the spaced-apart side walls.
摘要:
A tie plate is formed with a profile defining two parallel protrusions with bores for receiving the respective ends of two clips. The two clips engage the flange of a rail to secure the rail to the plate, and therefore, to tie disposed below the plate. Since the protrusions are made integrally with the the plate, the resulting tie plate is able to support the rail securely even in the presence of large forces and/or twisting moments on the rail resulting from a train passing over the plate.
摘要:
A tie plate is formed with a profile defining two parallel protrusions with bores for receiving the respective ends of two clips. The two clips engage the flange of a rail to secure the rail to the plate, and therefore, to tie disposed below the plate. Since the protrusions are made integrally with the the plate, the resulting tie plate is able to support the rail securely even in the presence of large forces and/or twisting moments on the rail resulting from a train passing over the plate.
摘要:
A rail-tie fastening assembly for fastening a rail to a concrete tie comprising a rail seat assembly and a rail anchor. The rail seat assembly includes a rail seat basin and a rail seat wherein the rail seat is disposed in the rail seat basin and bonded thereto with an elastomeric material having a void formed therein between the bottom of the rail seat and the bottom of the rail seat basin so as to produce a shear spring which transfers applied vertical load from the rail to the tie. The rail seat assembly is embedded in the tie and the rail anchor is adapted to engage a portion of the rail and to interlock with the rail seat assembly so as to cooperate with the rail seat assembly to fasten the rail to the tie.
摘要:
A rail fastener includes a rail plate and a rigid stop for rail. The rail plate consists of two parts having a plane surfaces for supporting the rail and extended upward appendages bearing preferably inclined surfaces which cooperate with inclined surfaces of the rail. Each of the parts of the rail plate is placed from opposite lateral side of the rail and they both are tightened with the rail. After they are jointed, the rail fastener becomes as a single whole with rail. One of the parts of the rail plate has a recess one wall of which may be inclined. The rigid stop is mounted in advance into the support structure. When the rail with a rail plate is placed on the support structure, the recess in the rail plate straddles the rigid stop. Then a wedge is mounted into this recess. One of its ends contacts with rigid stop, other which is inclined contacts with inclined wall of the recess in the rail plate. The wedge is bolted to the support structure and pulls up the rail to the rigid stop. As two rigid stops may be mounted in one support structure in advance, their surfaces for contact with rail maintain the gage of the track, and this gage may be maintained with any required accuracy. If for any reason the gage of the track has to be adjusted, the eccentric rigid stop can be used.
摘要:
A machine frame for a scraper-chain conveyor employs a housing or `plough box` containing a chain wheel for driving a haulage chain. A stripper device is provided in the housing to separate the chain from the chain wheel. The stripper device is composed of a one-piece shaped element with an arcuate blade projecting into the chain wheel. The element is fitted to a mounting flange of the housing with a single upstanding bolt-and-nut and a separate complementary locking member. The element, the locking member and the flange have shape-locking interengaging projections and recesses. The device can be positionally inverted.
摘要:
A supporting means for a track rail which in turn supports rotatable wheels secured to the base of a movable stack or storage means. The supporting means includes a flat strip of metal which is fastened to the floor and is formed with two vertically extending bars for positioning a metal rail between them. A bead is formed on the inside surface of each bar for engaging the sides of the rail, and a longitudinal channel is formed in the middle of the strip for equalizing the weight distribution of the rail.
摘要:
A pair of wedgelike elements are mounted one above the other between a horizontal surface and a rail, with their inclined surfaces abutting each other. One of the wedgelike elements is moved laterally to raise or lower the rail, whereas both elements are moved laterally to cause the rail to move sideways.