摘要:
An adjustable rail brace assembly for buttressing the head of a rail includes a rail brace having surfaces for engaging the head and the base of the rail and a vertically extending wedging face, a cover plate for retaining the brace having a vertical wedging face which compliments the brace wedging face, and an interlock for interlocking the brace wedging face and the cover plate wedging face such that the brace and the cover plate can move relative to each other in a vertical plane, but are restrained from moving relative to each other in a horizontal plane, and an elastic fastener for engaging the cover plate to prevent vertical movement of the cover plate.
摘要:
A railroad trackwork railbound frog assembly having a toe point element is provided with a pair of spaced-apart wing rail elements each having a notch recess feature, a pair of reversible and interchangeable spaced-apart wing rail insert elements, usually fabricated of a manganese alloy steel or a high-strength, low-alloy steel material that is harder than the material from which the wing rail elements are manufactured, installed in abutting relation to the wing rail element notch recesses, spacer blocks that maintain the separations between the toe point, wing rail, and wing rail insert elements, and bolt-type fastener devices joining the elements of the frog assembly into a unitary structure.
摘要:
A support block for a guard rail assembly has a vertical wall with non parallel front and rear surfaces. A pair of spaced legs project laterally from the front surface of the vertical wall. One of the legs has inner and outer side walls which are joined by an outer end wall. The inner and outer side walls extend different distances from the front surface such that the outer end wall tapers and is non parallel to the front surface.
摘要:
A method and apparatus for producing a tobacco rod of predictable characteristics whereby the tobacco filler is tempered prior to forming into a rod in a cigarette making apparatus. The tobacco filler is tempered prior to entry into the maker region to a temperature of from 32.degree. F. to just below ambient. Heat exchange coils are provided in a feed chamber wherein the tobacco filler is recirculated for tempering to desired temperature prior to being fed to the maker on a continuous basis.
摘要:
A rail brace assembly is adapted to buttress the head of a stock rail selected from one of two different stock rail groups mounted on the top surface of a brace plate. The assembly includes a stop block assembly also is affixed to the brace plate top surface. A rail brace moveable between a first brace position in which it buttresses the head of a rail from a first stock rail group and a second brace position in which it buttresses the head of a rail from a second stock rail group, has a pair of spaced side walls, a upwardly facing top surface, first rail group head and base fishing surface contact areas, second rail group head and base fishing surface contact areas, a first rail group brace plate contact surface and a second rail group brace plate contact surface. An elastic fastener cooperates with a clip housing to clamp the rail brace against the stock rail. When the rail brace is in the first brace position the first rail group head and base fishing surface contact areas engage the rail head and base fishing surface areas, the first rail group brace plate contact surface contacts the brace plate and the second rail group head fishing surface contact area engages the stop block assembly. When the rail brace is in the second brace position the second rail group head and base fishing surface contact areas engage the head and base fishing surfaces of the stock rail, the second rail group brace plate contact surface contacts the brace plate and the first rail group head fishing surface contact area engages the stop block assembly.
摘要:
A railroad trackwork spring frog installation having a conventional wing rail with attached wing rail horn fitting is provided with an improved co-operating hold-down comprising a weld block element component, a separate, readily replaceable, riser component supported by the weld block component, a housing component positioned over the wing rail horn fitting and supported by the weld block component, and bolt-type fastener devices joining the hold-down components into a unitary structure.
摘要:
A hook for a guard rail assembly has a vertical and a horizontal leg at one end adapted to engage a guard rail and a fastener receptacle at the other end adapted to receive a resilient fastener.