US609785A - Railway-car truck - Google Patents

Description

No. 609,785. 7 Patented Aug. 30, I898.

G. J. CAPEWELL.

RAILWAY CAR TRUCK.

(Application filed May 26, 1896. Renewed Ian. 5, 1898.) (No Model.)

lll IlllllllfijllllllllllEgilllllllliflllllilll mllll llllllllllll lll P TENT FFICEQ- GEORGE J. CAPEYVELL, OF HARTFORD, CONNECTICUT.

RAILWAY-CAR TRUCK.

SPECIFICATION forming part of Letters Patent No. 609,785, dated August 30, 1898. Application filed May 26,1896. Renewed January 5, 1893- Serial No- 665,706- (No model.)

To all whom it may concern:

Be it known that I, GEORGE J. OAPEWELL, a citizen of the United States,residing at Hart-- ford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Railway-CarTrucks, of which the following is a specification.

The invention relates more particularly to the class of trucks provided for railway-cars designed for high speeds which have two or more traction-wheels arranged one behind the other centrally of the truck and wheels located on each side of and below the tractionwheels.

The object of the invention is to provide a simple, cheap, strong, and durable truck with wheels arranged in this manner and formed with grooved peripheries adapted to travel on and be guided by a traction-rail having broad flat tread-surfaoes and horizontally-arranged wheels with retaining-flanges held by a firmlybraced light frame, so as to travel close to side rails placed below the traction-rail and prevent any possibility of the traction-wheels leaving the traction-rail, without to any extent increasing the friction of the wheels upon or against the rails.

Referring'to the accompanying drawings, Figure 1 is a plan of the truck with the upper frame removed. Fig. 2 is a side view of the truck. Fig. 3 is an end view. Fig. -lis a central transverse section on the plane indicated by the broken line of Fig. 1. Fig. 5 is a detail edge view of one of the tractiomwheels, the retaining-wheels, and a section of the track; and Fig. 6 is a similar View showinga modified form of traction-wheel.

In the views the truck is shown as provided with a pair of traction-wheels 1, arranged centrally one behind the other. These wheels have peripheral grooves 2 and wide tread-surfaces. The form of traction-wheel shown in Fig. 5, which is the same as shown in connection with the views of the truck, has its treadsurface on each side of the groove, while in the form of traction-wheel shown in Fig. 6 the tread-surface is at the bottom of the groove. The traotioirwheels can be manufacturedwith the sides integral, the grooves being formed during the making or after the making of the journals 7.

sides, or they can be built up so as to provide the two sides with the groove between them by placing two or more sections side by side. Short journals are provided for the tractionwheels, and these journals turn in suitable bearings connected with the wheel-frame 3.

The wheel-frame shown is arranged horizontally, and depending beneath on each side of the traction-wheels are the vertical frames 4. These vertical frames are bolted to the under side of the horizontal frame and are further connected with the wheel-frame by the brace-rods 5,that incline outward from the middle of the bottom of the vertical frames to the middle of the edge of the horizontal frame, and the brace-rods 6, that incline outward and backward and forward from the bottom corners of the vertical frames to the corners of the horizontal frame.

Bearings are formed in the vertical frames, and in these bearings are held the vertical On the lower ends of these journals are secured wheels 8, arranged horizontally and adapted to run close to the outside of the side rails located below the tractionrail. These horizontally-arranged wheels are preferably built up in sections and have wide flat peripheries 9, of cushioning material, and retainingflanges 10, arranged to run beneath the edges of the side rails.

Upon the upper side of the horizontal traction-wheel frame, at the corners, are located spiral springs 11, and between the spiral springs, along the sides and across the ends, are located leaf-springs 12. Upon these springs is supported a top frame 13. This top' frame is connected by means of a king or pivot bolt 14 with a plate 15, that is adapted to be connected with the bottom of a carbody. The bolt let may be forged integral with the plate or may extend through it. Studs 16 may be arranged to limit the oscillation of the plate on the upper frame. The top of the horizontal traction-wheel frame may be provided with a rib 17 to add strength to the structure, and through a central perforation 18 the king or pivot bolt may be extended, if desired, to aid in holding the frames together.

The horizontal traction-wheel frame issimple and strong and can be cheaply formed. The vertical retaining-wheel frames are very securely held in place and strongly braced in a light simple manner, so that they cannot be Wrenched or sprung out of position. The traction-wheels have wide tread surfaces that can" be provided with a cushioning material, and they are guided along the tractionrail by the grooves in their peripheries. The retaining-wheels have Wide peripheries that can be provided with cushioning material and flanges that will by contact with the under edges of the side rails prevent the tractionwheels from becoming displaced from the traction-rail. The retaining-wheels are located below the traction-wheels in a plane that passes between the two traction-wheels, which allows a slight oscillation and permits the easy rounding of curves by the traction-wheels, that are held in place by the grooves in their peripheries and are retained in position by these retaining-Wheels, and the upper frame, that is pivotally connected with the car, is

arranged to permit the necessary oscillationfor the truck and the desired spring or yielding between the car and truck for the comfort of the passengers.

The truck is simple, cheap, and strong, and will run easily, lightly, and smoothly on the track provided at rapid rates of speed without nals for the traction -wheels, 2, horizontal frame supported by the journals of the traction-wheels, an open rectangular frame depending vertically from the horizontal frame on each side of the plane of the traction- Wheels, a horizontally-bearing flanged retaining-wheel supported by bearings in each vertical frame below and in a plane extending between the traction-wheels, brace-rods extending from the middle of the lower end of each vertical frame upwardly and outwardly to the side edges .of the horizontal frame, brace-rods extending from the corners of the lower end of each Vertical frame upwardly and outwardly toward the front and rear corners of the horizontal frame, spiral and leaf springs supported by the horizontal frame, a similar horizontal frame supported by the springs, and a plate pivotally connected with the upper frame, substantially as specified.

GEORGE J. OAPEWELL. Witnesses:

H. H. WILLIAMS, E. J. HYDE.

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