US781352A - Track-brake. - Google Patents

Description

PATENTED JAN. 31, 1905.

J. P. ORR. TRAUKYBRAKB.

APPLICATION rum) JUNE 9, 1904. 7

a vwewto'c if v UNITED STATES Patented anuary 31 1905.

PATENT OFFICE,

JAMES FRANKLIN ORR, OF BELLEVILLE, CANADA.

TRACK-BRAKE.

SPECIFICATION forming part of Letters Patent No. 781,352, dated January 31, 1905.

Application filed June 9, 1904. Serial No. 211,863;

To all whmn it near concern;

Be it known that I, J AMns FRANKLIN ORR, residing at Belleville, in the Province of Ontario and Dominion of Canada, have invented a new and useful TraclcBrake, ofwhich the following is a specification.

- This invention relates to that class of railway-car brakes whichare applied-directly to the rails by pressure applied downwardly from the truck-frames, and has for its object pable of carrying the same into practical operation, it being understood that the'invention is not necessarily limited thereto, as various changes in the shape, proportions, and general assemblage of the parts may be resorted to without departing from .the principle of the invention or sacrificing any ofits advantages, and the right is therefore reserved of making all the changes and modifications which fairly fall within the scope of the invention and the claims made therefor.

In the drawings thus employed, Figure 1 is a side elevation, partially in section, of a railway-car truck with the improved brake-applied. Fig. 2 is a plan View of one side of but for the purpose of illustration is shown applied to an ordinary form of such a structure, in which the frame 10, axles 11 12, axle bearings 13, and traction-wheels 14L areof the usual form and arranged in the usual manner and mounted upon therails 15.

The improved device'comprises a frame or casing formed of plates 16 17, spaced apart by space-blocks 18'and 19, bolted or otherwise secured to the truck-frame 10 just in advance of each of the traction-wheels and in vertical alinement above the rails.

Mounted for vertical movement in each of the frames or casings is a bar 20, having a lat.- erally-projecting head 21 and with its lower end projecting beneath the casing and provided with a brake-shoe 22 for engaging the .rails when the bars are depressed.

projections 21 of the bar 20 and the lower its inoperative or elevated position when the operating force is withdrawn.

ings which carry the bars 20 are bearings 24 25 for rotatively supporting shafts 26 27, having cams 28 29 for bearing upon the upper ends 21 of the bars 20 and depressing them Any suitable means may be employed to actuate the shafts 26 27, but will preferably be so constructed as to move them in unison, so that the four brake-shoes are applied at the same time.

. For illustration the shafts 26-27 are provided with lever-arms 3O 31, from which rods 32 33 lead to the ends of a lever member 34, the latter centrally pivoted, as at 35, to the truck-frame 10 for connection, as by rods, in any suitable manner to the brake-rods or other means for operating the same' The rods from the lever 35 may be conbrake mechanism of the cars. By this means it is obvious that a very simply-constructed and easily applied and operated brake mechanism is produced which may be applied to any of the various forms of car-trucks in use upon the various railroads and will operate very efficiently upon the rails and will not, therefore,produce any deleterious efiects upon thewheels or cause them to slide or skid upon the rails. The formation of flat wheels is thus entirely obviated when the improved brake is employed.

Springs 23 are disposed between the head when the shafts are rotated, as will be obvious.

spacer-blocks 18 and exerting their force to maintain the bar and its attached shoe 22 in Attached to the frame 10 opposite the casnected, as will be obvious, to the ordinary air- Having thus described the invention, what is claimed is 1. The combination With a rail way-car-truck frame, of a plurality of casings formed of spaced side plates spaced apart by spacerbloeks and connected to the truck-frame in advance of the Wheels of the same and above the rails, bars mounted for vertical movement in said casings and having at one end brakeshoes for bearing upon the rails When the bars are depressed and with lateral extensions at the other end, springs disposed Within said casing and bearing against said lateral extension upon said bar, and means carried by said truck-frame for depressing said bars to cause said brake-shoes to engage the rails.

2. The combination with-a railway-car-truek frame, of a plurality of casings formed of spaced side plates spaced apart by spacerblocks and connected to the truck-frame in advance of the Wheels of the same and above the rails, bars mounted for vertical movement in said casings and having at one end brakeshoes for bearing upon the rails when the bars are depressed and with lateral extensions at the other end, springs disposed within said casing andbearing against said lateral extension upon said bar, shafts mounted for rotation transversely of said truck-frame and having cams for engaging said movable bars, and means carried by said truck-frame for actuating said shafts.

In testimony that 1 claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

JAMES FRANKLIN ORR.

\Nitnesses:

A. A. ROBERTS, W. B. NoR'rnAM, Jr.

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