Abstract:
A railway vehicle roof including a plurality of sections made from molded reinforced fiber glass plastic sheets. The molded plastic sheets include a pair of transversely extending and lengthwise spaced ribs, a pair of spaced X-shaped ribs disposed between the transversely extending ribs, and a plurality of ribs extending between the X-shaped ribs. Upstanding flanges are formed along the transverse edges of the panel. A seam cap fits over adjacent ones of the upstanding flanges.
Abstract:
A galvanized roof structure for application to a freight car by welding and having a plurality of roof sections joined by clinched seams formed by interlocking hook flanges. The seam is sealed by a suitable sealant. A method is disclosed wherein the sealant is applied prior to tightly clinching the seam.
Abstract:
An improved uncoupling rod assembly for uncoupling the couplers of a railway car, said assembly including a first rod section and a second rod section which are connected so as to be capable of transmitting turning torque for operating the coupler unlocking mechanism. The connection is flexible, resilient, and normally stiff to hold the rod sections in axial alignment but resiliently flexible upon impacts non-axially applied on the assembly so as to cause binding thereof. The assembly returns to its normal operating position when the force of the impact is removed.
Abstract:
A passenger loading and unloading ramp, bridge, tunnel, gangway or conveyance for airplanes provided at its outer end with a cab having a flexible canopy structure providing a weathertight seal between the cab and the fuselage of the airplane around a doorway with which the passageway through the cab registers. The canopy structure includes a canopy frame assembly which includes a series of canopy frames spaced-apart longitudinally of and enclosing the passageway through the cab, each frame having the general configuration of an inverted U and including laterally spaced, generally upright arms located on opposite sides of the passageway and connected at their lower ends to the supporting structure of the cab. The canopy frames are rigid transversely of the passageway through the cab, but the arms of the frames are flexible longitudinally of the passageway. With this construction, the canopy frame assembly may flex as required to permit the canopy structure to achieve weathertight seals with a wide variety of airplane fuselage configurations.
Abstract:
Apparatus for truing the wheels of a railway vehicle wheel-and axle assembly. The vehicle axle is maintained in a fixed alignment by means of retractable centers, and the truing tool rotates about an axis which is maintained parallel to the vehicle axle. Drive rollers are provided to support and drive the vehicle wheels. The drive rollers are carried by a platform mounted for limited universal movement on a hydraulic lift mechanism which supports the weight on the vehicle wheels. Resilient means are provided to damp the universal motion of the platform. The truing tool is a milling cutter having a body contoured to the shape of the vehicle wheel, with cylindrical cutting buttons affixed to the body in diagonal ranks to form a helical pattern. The buttons in the wheel flange cutting portion of the cutter body are disposed with their longitudinal axes substantially normal to a radius of the cutter body, while the buttons in the tread cutting portion are disposed with their longitudinal axes substantially coincident with a radius of the cutter body. The flange cutting buttons may be arranged in ranks which are offset from the ranks containing the tread cutting buttons, and next adjacent buttons in the helical pattern may be spaced by staggering the ranks.