US1676149A - Claw bar - Google Patents

Description

July 3, 1528. 1,676,149

T. MANEY CLAW BAR Filed June 10, 1927 gwumtoz v The object-is to provide a Patented July 3,;

omsnsra'rss rarer CLAW BAR;

Application filed June 10,

My invention relates toan improvement in" claw bars.

"adapted for loosening and pulling railway spikes. i

" In theaccompanying drawings:-

, 4 is formed for straddling the spike and Fig. l is a fragmentary plan view; and

Fig. 2 is a fragmentary side'view showing a rail and tie-plate in section. 7 The numeral 1 represents of which there are two, and is the fulcrunr point. In the recess 3, at the center, a claw entering between the head of the spike and the tie-plate 5Q The numeral 6 indicates 1 the base. of the rail,,and 7 is the spike to be drawn. r a

The numeral 8 represents the arm or i handle of the claw bar.

Under many conditions, a spikemay' be easily pulled by simply sliding the'claw 4 into the space between thelhead of the spike;

' and the tie-plate, as illustrated in the drawing's, whereupon the bar is pulled 111 a dlrection away from the rail,v rocking on the fulcrum point 2, until the spike is started and pulled out, But spikes are often over driven and the so much depressedthat'it isdiflicult to insert the pulling edges ofthe claw under the spike heac. But if, with the extended tips 1, the handle of the bar. is pushed forward,

under the headpthrow the top of-the bar toward the rail, the-.iiiitial pull is about the higher fulcrum point a, at the very end of the tip, with a shoulder lever arm from a to b, the effectheingr more power, a better irection of pull and a better hold upon the spike head.

The act of drawing a spike would belabout as follows I First, thrust the claw as far "as possible bar particularly an extended tip,

back of the head hecomes" 1927. Serial No. 1e7,'ss4,;

forward toward the rail with thetip of the claw as a fulcrum; then, with the slack I obtained by the liftv the claw has givenvthe spike, insert the claw fully under the heady otthe spike, and by drawing with abackward or outward pull of the bar handle, the I,

spike is easily removed; I

secured spikes. I

3 By this construction the fulcrum point is V shifted to a position in 'front of the spike instead of behind, as heretofore. "In that In this way, a simple and powerful device 15 provided forpulhngthe 'most'ohstinately way, the fulcrum point is higher than the pointhcneafth the head of the spike, from which the spike is pulled and, when'in use, the short lever arm from ato I does not lengthen, consequently'retaining its initial power.

same time permits theiinsertion of: the pulling flanges at the lowest point.

To summarize, 1n case of an obstinate,

over-driven spike, the points 1 are used'" merely-to start the spike, thereby giving clearance for the claws, the final pulll bein'g made from the stirrup fulcrum 9 at the rear. I a i I claim:

1, A claw bar having a claw carried thereby, and provided with offset claw points.

'2. v A. cl aw-bar having a claw carried therehy,'and,prov1ded withoffset claw points on one side of the claw'providing an additional THOMAS MANEY, on LoUI'svIL n ENTUcKY.

The offset of the claw 4 at 3 is necessary 4 7 111 011191" t0 gi e this full effect and at the

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