US81067A - chadwick - Google Patents

Description

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EDWARD W. GHADWIK, OFEDGARTOWN, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND WILLIAM P. GHADWICK, OF SAME PLAGE.

Letters Patent No. 81,067, elated August 18, 1868.

IMPROVED GAR-COUPLING.

TO ALL PERSONS TO WHOM THESE PRESENTS MAY COME:

Y Be it known that I, EDWARD W4. CIlADWIcK,of Edgartown, in the county of `Dukes, and State of Massaehusetts, have invented an Improved Car-Coupling; and I-do hereby declare the same to bc fully described in the following specication, and represented in the accompanying drawings,l of which-.-v

Figure 1 is a top view, and

Figure 2 a vertical and longitudinal section of such coupling and its link.-

In suchdrawings, A denotes arailway-carriage draw-bar, provided with alink-receiving chamber, a, having a trumpet-shaped or flaring mouth, b, and also a recess or catch-socket, c, extending from the said chamber, and formed in manner as represented.

A lever-catch, B, shaped as shown in top view iu Figure 3, and in sideelevation in Figure 4, is applied to the draw-bar so as to extend into the chamber a, in manner as shown ing. 2. l

A cap, C, provided with a spring-receivingchamber, d, is arranged'in the top of the draw-bar, and i'xed thereto by screws, e e.

This cap constitutes a cover t'o the open chamber a and the catch-lever, and as a cap to its journals, ff,

which are arranged within bearings, gg, made in the draw-bar, (see Figure 5, which isa top view of the drawbar, and as it appears without the cap, the catch-lever, and its operative spring, le.) The said spring, e, is arranged in the chamber 0l, and in a groove, z', made in the top of the catch-lever. Such spring is for the purpose of depressing the lever and holding it within'. the catch-recess e. An arm, Z, extended up from the levereatch, and through a hole, m, in the cap C, enables a person, by means of a rope or chain fixed to-such arm, to raise the catch-lever out of the link D, when it may be desirable to unshacklc the two. The purpose of the recess e is to so support the lever-catch B under the strain of the link, as to prevent such strain from breaking'` v thejournals of the catch.

When the link enters the mouth and passes into tlm chamber ofthe draw-bar, such link will strike against the inclined lever-catch and force thc same upward, and pass beyond it far enough for'the spring It to depress the catch into the link and the recess c c. The link'will then be coupled to the draw-bar.

The great strains brought on the catchlbar by the link are liable to break oif or bend a bolt, when usedas a centre or fulcrum t'o the catch-lever. When bent in its hole, it often becomes difficult to extract the bolt. With my mode of making thc catch-lever, and supporting its fulcrum, no bolt becomes necessary, and as the journals of the lever are protected by thecatch-recess from being overstrnined, 4and arc covered by the cap, we have not only a means of preserving the lever from injury, but in case of its becoming broken or bent, wc can easily remove, and substitute another for it, such lever with its journals being cast in onefpiece of metal. The cap also serves as a protection for the spring 7e.

I make no claim to the combination of a catch-lever with a chambcred draw-baryas I am aware that such is old. d Nor do I claim the arrangement and combination of the-recess c with thc chambcred draw-bar and its catch-hiver. 4

The spring /r is so connected with the chambcred cap Cas to bc removable therewith, the same serving to enable the spring to be raised oii' the catch with the cap, when it may be desirable to gain ready access to the Ycatch for its removal. l

What I claim as my invention is as follows:

The arrangementand combination of the chambercd cap C with the chambered draw-bar A, the spring k a`nd the lever-catch`B, made as described.

EDWARD W. CHADWICK.

Witnesses Hannon VINCENT, DAVID J. CHADwicK.

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