US1139551A - Railway appliance. - Google Patents

Description

F. A. McRAE.

RAILWAY APPLIANCE.

APPLICATION FILED SEPT.27, 1912.

Eatented May18,1915.

ETERS 00., WASHINGTON, n, c.

ENTTED TATES PATENT @FFEQE.

FINLAY A. MoR-AE, 0F MONTREAL, QUEBEC, CANADA.

RAILWAY APPLIANCE.

Application filed. September 27, 1912.

To all whom it may concern:

Be it known that I, F INLAY ALEXANDER MCRAE, residing at the city of Montreal, Province of Quebec, and Dominion of Canada, have invented certain new and useful Improvements in Railway Appliances; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates particularly to appliances to be carried by the trucks of railway cars whether tramways or railroads; and it has for its object to provide an appliance completely inclosing the lower portion of the wheels at each side of the truck and constructed and arranged to prevent bodies or obstacles upon the track from being run over by the wheels, and, at the.

same time, afford a guide for a portion of a brake mechanism of particular construction, and present a part extending below the head of the rail and lying in close contact therewith for the purpose of enabling this appliance to traverse frogs and switches without damage thereto or to itself.

The invention may be said to consist of the construction, several combinations and particular arrangement of parts hereinafter described and pointed out in the claim. For full comprehension, however, of my invention reference must be had to the accompanying drawings forming a part of this specification in which similar reference characters indicate the same parts, and wherein:

Figure l is a side elevation partly in section of my improved railway appliance; Fig. 2 is a plan view of one of the box-like members thereof; Fig. 3 is a detail plan view of a portion of the member drawn to an enlarged scale and illustrating particularly the means for yieldingly connecting the appliance to the axle boxes; Fig. 4 is a part elevation and part sectional view of the means illustrated in Fig. 3; Fig. 5 is a sectional view taken on line A A Fig. 3; Fig. 6 is a transverse sectional view of a truck with my improved appliance thereon; Fig. 7 is a detail sectional View taken on line B B Fig. 1 and illustrating particularly one of the brake shoes and the construction thereof to conform to the contour of the wheel and rail head.

The truck to which the appliance containing the invention is applied may be of any approved type, the wheels being indi- Specification of Letters latent.

Patented May 18, 1915.

Serial No. 722,674.

cated at b, the axles at 0 and the journal boxes at 03.

According to my invention the lower portion of the wheels at each side of the truck are completely inclosed in a box-like structure comprising sides 2, 3 and inclined ends 4. The sides have rectangular openings 6 to accommodate the axle boxes and bearing blocks which support them. These bearing blocks are formed with a pair of flanges on each side to accommodate the edges of the openings 6 in the sides. The tops of the sides are located sufliciently below the frame of the truck to permit of play of the latter without injury to my improved appliance which is suspended from the axle boxes and bearing blocks by means of brackets 10 secured thereto and springs 12 connected at their opposite ends to the axle boxes or bearings blocks and brackets, the function of the springs being to cause the appliance to bear at its ends yieldingly on the head of the rail and to accommodate vertical play and permit the appliance to move in a perpendicular plane to clear frogs, switches and the like.

In order to prevent displacement of the appliance and through it the wheels, and, consequently, the truck and car or locomotive, the sides 2 and 3 are extended downwardly to a point on a level with the underside of the rail head 13.

The appliance is adapted to ride over crossings frogs and the like by having its ends slightly rounded as at ll and hardened and placing fillers 15 within the angles of the crossings and frogs and forming the upper surface of the fillers as inclined planes, the efiect being that when a car or locomotive approaches a frog or a switch thus equipped the reinforced ends ride up the inclines, thus lifting the appliance against the pressure of the springs 12 and permitting the appliance to pass over the uncut main rail. The switch rails 16 have their ends spaced from both sides of the main rail to permit the bottom edges of the box-like members to pass along the main rails.

The brake mechanism provided as an element of this appliance consists of a pair of triangular shoes 20 having their lower edges grooved as at 21 to conform to the configuration of the railheads 13, and they are suspended by hanger bars 22 and 23 from the cranked portions 24, 25 of a triple crank shaft 26 journaled in bearings 27 on the truck frame, and the third offset or crank 28 being connected by a brake rod 29 to a brake handle 30 mounted in any suitable I way upon the car or locomotive, or a brake cylinder with compressed air connections may be employed if desired without depart- I ing from the spirit of this invention. When the rod is shifted the crank shaft is rocked in'the direction indicated in Fig. 1, and the shoes 20 lowered into contact with the rails. Immediately they touch the rails the friction causes their movement to be retarded and the effect is that they are wedged between the wheels and the rails, the inclined ends of the shoes preventing the wheels mounting the same while the sides 2 and 3 of the box members act as guides for the shoes. V

In order toprevent bodies or objects upon the track between the rails from being run over by the truck, a fender preferably con- 7 sisting of a pair of frames l0 each having two Witnesses.

a netting 4C1 stretched across it, isl bolted or otherwise rigidly secured across each end the other.

. What I claim is as follows The combination with a wheeled railway truck, of an appliance. comprising a pair of brake shoes suspended from the truck frame, and formed with wedge-shaped ends, means for shifting said shoes to and from engagement with the wheels, and the portions of the rails on which, the wheels bear, and a pairof box-like member's carried byrthe truck and enveloping the brake shoes and overlapping the railheads 'for'the purpose of guiding the brake shoes relativelyto the wheels and rails. I

In testimony whereof I have signed name to this specification in the presence of FrrILAY- 'A. MoRAE. i A

Witnesses; I

GORDON, G. Coons, E. R. Prrrs.

c'opies iol this'patent may be obtained for five cents each, by addressing .the Commissioner of Patents,

Washington, 1). G3

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