US933078A - Draw-bar safety device. - Google Patents

Description

n. G. KlTzMLLER.

APPLIIOATION Patented sept/7,1909.

DIXON G; KITZIILLER, OF HARRISBURG, PENNSYLVANIA.

DRAW-BAR SAFETY DEVICE.

Specification of Letters latent.

Application filed November 1l, 1907. SerialNa 401,733.

To all whom Muay concern-:I

I e itlmowii that I, Dixon" G. Ii'iziwinnniz, a citizen of "the United-States, dresidiiigat Harrisburg, in the county of Dauphin, State of Pennsylvania, have invented certain` new and' useful Improvements in Draw -.Barl

y Safety Devices, of which the following is a speci cation.

My invention relates to means for preventing accidents resulting from breaking of draw-bars, and my invention consists of a safety device comprising a yoke adapted for,coiiiiection with a draw-head by means of a'knuckle-pin and a chain connected with the yoke and at the opposite end with astationary part/of the car, together with means supported by the yoke for preventing the dropping of the knuckle pin in case it breaks, as fully set forth hereinafter and as illustrated in the accompanying drawing, in which:

Figure 1 is a view illustrating'my safety device applied to the coupling appliance of a car; Fig. 2 a view in sect-ion through the draw-hea Fig. 3 a perspective view of the safety device; Fi 4 isA a sectional vieu' showing a modifie form of piii-support.-

The draw-bar F is suitably mounted, as usual, beneath the platform Aof the car and carries the draw-head E, of any suitable construction, provided with a knuckle-b and its locking means, not shown, the said knuckh` being pivoted to the drawhead by a bolt a which is preferably' somewhat. longer than the ordinary bolts in order that it may project above and below the draw-head.

To the framework of the car at'anysuitable point, as to one of the crossfbeains a, is

firmly connected the inner end of a draft.'

chain B the outer ond of which is attached to a yoke C, the'diverging arms of the yoke terminating in the eyes d, and the voke being soconstructed and proportioned that it may be applied to the draw-head with one arm aboveand the other below `the drawhead in position 'for the passage of the bolt s which thus serves to lock the yoke. to the draw-head as well as'to lock the knuckle in place. rlhe c'liain B is of such length that it will in no way restrict lthe usual or normal movements'f the draw-bar and draw-head,

but any movement ofl the draw-head beyond its normal extent longitudinally will cause a stress to be applied to the chain so that even if the draw-bar should become stretched the draft strain will beborne at least in part by f thereby preventing,

r cars together an 51. A safety attachments willtlius be In case of breaking of the draw-bar the draft will of course come upon thev chain B, `in inost instances, the dropping of the draw-head unless the frac; ture should occur close to the draw-head, and even in 'such 4pase the chain serves to hold the draw-head in such close relation to the other parts that it will remain in a coupled connection with the opposing draw-.- head and prevent accident. ing oiundue elongation of the draw-bar is discovered the cars mayyyet be held iria coupled position by removing the bolts s of both. of the coupled draw-heads and connesting the yoke C to the draw-head of the. opposing car by means of its bolt s.

pli. ulsing a support G which serves to hold Patented sept; 7, 19u09.y

The yoke C may also be made the means Ithe chain and the danger of fractiuiiig- -i the draw-bar or' its yavoided orgreatly reduced.

ower port-ion of the pin s, 1n case of the .Y

fracture of the latter, at any point between its ends. Thus, as shown,` the said support consists of a thinible with a socket will receive the lower end of the pin s but not allow the same to pass, and this thimble has a bracket g adapted to extend over the top of the lower fork ofthe oke C, and with an opening ai through w ich the` pin can pass, the parts then keeping the osition y which shown in Fig. l. If the pin shoul fbreak at any point between its ends the lower portion will still be held in place by the sup? port G which itself is held in place upon the yoke C bythe pin.

The support inay be made strip of metal, as shown in Figs. 1 and 2, o1' it may consist of cast metal having Aa socketed portion G with a perforation w as in Fig. 4. In using the ter-m draft in connection lwith the word chain I intend to emphasize t-he 'character of this chain which is of such a strength and so connected-to the plat-- form or frame of the carthat it will serve as a coupling or connection between carslien the draweheadis broken. That is, y'it is of such sti-en th .that it will couple the u .is not a mere support for retaining the yoke C in connection with the car to avoid loss of the yoke.

Without limiting myself to the'construction shown, I claim:

device for draw barshaving. drawsheads and pivoted knuckles consisting by ceiling a and an overhanging arm g.:

ica

posite end arid having perforated ears adapted to receive and support the p1v`ot pin o'f' the draw head above and below the latter.

2. The conibiliatwn with -a car frame,

draw bar, draw head and its knuckle and pivot pin, of a yoke having perforated ears to receive and support said pin above andbelow the draw head, and a draft chain conneeted at one end to the lyoke and at the other to the car frame.

lesame l 3. The combination with lthe draw-head, I

knuckle and knuckle-pin', of a yoke perforated at the ends' to receive said pin, and a of the pin and having a bracket adapted to rest`on` the lower fork of the yoke and perforated for the passage of the pin.

in presence of two witnesses. .l

DIXON Gr. KITZMILLER. Witnesses y CHARLES E. FOSTER, ARTHUR L. BRYANT.

pin support adapted to receive the lower end In testimony whereof I ax my signature

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