US58207A - Improved shoe for car-brakes - Google Patents

Description

. J. BING.

f Car-Brake Shoe.

Patented Sept. ,25, 1866.

I a veniar (5 8 Wa d UNITED STATES PATENT OEEIoEQ JAMES BIN G, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVED SHOE FOR CAR-BRAKES.

Specification forming part of Letters Patent No. 58,207, dated September 35, 1866.

pan yin g drawings, making a part of this specification, in which-'- Flgnre 1 is a perspective view of my carbrake. Fig. 2 is a back view of the shoe as set on the beam. Fig.3 is a front view of the same. Fig. 4 is a sectional elevation of the shoe, beam, and sole. Fig. 5 is a lower end view of the sole. Fig. 6 is an upper end view of the same. Fig. 7 is a perspective "iew of the metallic lining placed between beam and shoe. p r

The nature of my invention may be specified as follows: My carbrake being composed of two main and distinct parts, the shoe and its sole, I connect the sole with its shoe by means of a hook --shaped male lug embraced in a female aperture of suitable form on the shoe. Resting in proper place on the shoe by means of ears on the hook male lug, corresponding with and fitting on projections, ad hoc, on the shoe, the sole hangs to and is firmly connected with it without the aid of keys or bolts.

To enable others skilled in the art to make and use my invention, I will proceed to dc scribe its construction and operation.

Similarletters refer to similar parts throughout the several views in the accompanying drawings.

B is the shoe, and A the sole, shaped to fit the car-wheel, and is provided (the sole) with a hook-shape lug, O, which fits between the lugs K K on the shoe, and rests there by means of its shoulders or ears 0 0 fitting on projections as a; on lugs 7a 7a of the shoe.

2 z is apiece of india-rubber, gutta-percha, or any suitable material placed between lug O 011 sole and lugs 70 is on shoe, so as to obviate the noise of the friction of the sole on the shoe, the peculiar shape of lug O forming, with lugs k 7s, arecess, where said packing finds its place, and is held without any possibility left of its being displaced.

Q is aspur-like lug on sole A, fitting in fosse hereinabove described are loose enough to allow a sidewise vibration, which will adapt the fitting of sole A to all posit-ions of the carwheel at any time orin any peculiar position, as on curves, &c.

R B, Fig. 2, is a clevis, the upper end of which is suspended to the truck of the railroadcar, the lower end of which passes through the shoe at B, Fig. 4, and is held in proper place (though loose enough to occupy any de, sired position) by means of beam M and me tallic lining L L. Y

L L is the metallic lining I refer to, and

which is placed between beam M and shoe, so

as to obviate the effect of the friction of clevis R R on the wood of the beam.

M M is the usual beam, on each end of which is fixed one of my brakes, by means of one single bolt, y y, which goes clear through the shoe, the metallic lining, and the beam, connecting them firmly together.

The above-described construction is presented as a decided improvement on a carbrake which I invented and for which a patcut was granted me under date of the 6th day of October, 1863, said improvement to be divided into three main points:

First. When the sole is connected by means of its hook-shaped lug to the shoe it hangs perfectlyplumb to said shoe, and the shoulders 0 0, resting on the projections 00 00, cause the sole to be firmly united with the shoe Without the help of an y key or bolt. The peculiar shape of lug 0 gives an off-center tendency to the sole, and as a consequence of its position, rest ing, as it does, on projections w w, it brings the sole in close contact with the shoe; and if, as 7 above mentioned, a piece of rubber or any suitable packing has been placed, as in z 2, Fig. 4, between lug G and the shoulder on shoe, all friction is prevented without in the least interfering with the needed compact connection of the sole to the shoe.

Second. In railway c'ars the fore wheels will tend the sole of the brake downward, whereas.

the hind wheels will force it upward, and with ordinary brakes this reverse action is a great obstacle to their. successful working. That difficulty is avoided by my invention. Thelug O resists and will overcome any force tending to drag" the sole downward, whereas the spurlike lug, resting firm into its socket or fossc, will resist any force tending to lift the sole upward.

Third. By placing the metallic lining L L between the beam and the shoe the same can be united with the truck by a close clevis, which if acting on the wooden beam would wear it out soon,whereas it rests and works on the metallic lining, which resists wear.

What I claim as my invention, and desire to secure by Letters Patent of the United States,

1. The shoe B and sole A, united together without the help of any key or bolt, and so that the sole, by this ofi center tendency resulting from the peculiar shape of lug O, can remain constantly in close contact with its shoe.

2. The combination of packing z z with lug C and shoe B, for the purpose above described.

3. The combination of shoe B, sole A, close clevis 1t, metallic lining L, and packing z z, the whole combined, constructed, and arranged substantially as above specified.

JAMES BING.

Witnesses O. D. GOLLADAY, S. B. COLLADAY.

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