US703443A - Spike-puller. - Google Patents

Description

No. 703,443; 7 Patented luly'l, I902. N. F. MURPHY.

SPIKE FULLER.

(Application filed Jan. 6, 1902.) v

(No Model.) I

venience, and rapidity.

UNITED STATES PATENT OFFICE."

NICHOLES FRANCIS MURPHY, OF BAKERSFIELD, CALIFORNIA.

SPlKE-PULLER.

SPECIFICATION forming part of Letters Application filed January 6, 1902.

To all whom it may concern:

Be it known that I, Nrononns FRANCIS MURPHY, a citizen of the United States, residing at Bakersfield, in the county of Kern and State ofCalifornia, have invented a new and useful Spike-Puller, of which the following is a specification.

The object of this'invention is to provide a simple and powerful spikepuller of few parts by means of which the laborer will be en'- abled to pull the spikes with'great ease, con- Another object of this invention'is to provide a spike-puller the jaws of which can be cheaply made of cast-steel and can readily be replaced by the workman on the ground without the necessity of. taking the tool to a blacksmith-shop.

Another object of this invention is to provide a spike-puller which can be readily adapted for pulling either large or small spikes and which will also pull headless spikes.

The accompanying drawings illustrate my invention.

Figure lis a perspective view showing the tool in position for pulling the spike. Fig. 2 is a section of the same cutting through the pivot. Dotted lines indicate the positionof parts when the tool is open to receive the spike. Solid lines show the position of the parts after the spike has been gripped. The spike is shown partly drawn. Fig. 3 is a side elevation of the spike-puller in use. Fig. 4 is a section of the block on the line of the pivot. v

1 indicates a forked lever having'a heel or. fulcrum 2 to rest upon the top of the railwayrail 3. 7

4: indicates a keyblock pivoted between the forks by "a pivot-bolt 5, which extends through the forks a. a of the leverand is held in place by suitable means, such as the key 6.

7 7 indicate t-wo slotted curved clampingjaws pivotedbe tween the forks on opposite sides of-the key-block 4, with their concaved faces 8 presented toward the block to engage the same. i

9 9 indicate the gripping edges of the jaws.

10 10 indicate the slots in the jaws, respectively, through which the pivot-bolt is passed.

14, in order to lighten the block.

Patent No. 703,443, dated July 1, 1902.

Serial No. 88,694. (No model.)

lever 1 is preferably rounded on its upper rear face, as at 15, and the front lower face 16 is plain and flat, thus forming a sharp edge 17 to rest upon the rail 3 to prevent slipping.

In practicaloperation the laborer will drop the tool down ontothe headof the spike,

. taking care to allow the head of the spike to come between the jaws and into the socket 12, the jaws being thrown upward, as indicated in dotted lines in Fig. 2, and spread apart at the bottom to allow the spike to come between them. The fulcrum-heel will then be rested on the rail and the lever pressed down, thus drawing the key-block up between the rounded faces of the jaws, thus throwingthe uppereuds of the jaws apart and theedges toward each other to grip the spike. The curvature ofthe jaws'gives considerable latitude of movement for adjusting the tool for different-size spikes. An extra set of jaws with greater or less curvature than that shown may be provided for pulling larger or smaller size spikes.

The key-block and jaws are so constructed that the jaws practically slide between the key-block and parts of the lever} and as the key-block 'moves away from the gripping portions 9 and 9 of the jaws said portions are forced together by the action of the keyblock on the body of the jaws.

What I claim, and desire tosecure by Let ters Patent of'the United States, is-

1. A spike-puller comprising a forkedlever; a key-block pivoted betweenthe forks; and two slotted curved clamping-jaws pivoted between the forks on the opposite sides of the block with their concave faces in contact with the block; the pivot extending through the slots and key-block.

2. A spike-puller comprising a lever; a koy= block carried by the lever; and two clampname to this specification, in the presence of ing-jaws constructed to slide between the two subscribing witnesses, at Bakersfield, block and parts of the lever; said block be- California, this 27th day of December, 1901. [0 ing constructed to force the gripping portions XIOIIOLES FRANCIS MURPHY.

5 of the jaws toward each other as the block \Vitnesses:

moves therefrom. C. N. JOHNSTON,

In testimony whereof I have signed my W. I. HARRIS.

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