US1329458A - Spike-puller - Google Patents

Description

V. A. COBB.

SPIKE FULLER. APPLICATION FILED MAR. 29, 1919.

1,329,45 j Patented Feb. 3,1920.

VERNON A. COBB, OF CHARLESTON, WEST VIRGINIA.

SPIKE-PULLER.

Specification of Letters Patent.

Patented Feb. 3, 1920.

Application filed March 29, 1919. Serial No. 286,066.

To all whom it may concern:

Be it known that I, VERNON A. COBB, a citizen of the United States, residing at Charleston, in the county of Kanawha and State of West Vir inia, have invented a new and useful Spike lPuller, of which the following is a specification.

My invention relates to spike pullers and has as its primary object to provide a device of the character which Will facilitate the engagement of the same with the spike to be pulled.

Another object of the present invention is to provide a spike puller, the rocking movement of which will not be hindered as is often experienced in spike pullers and which is due to the heavy claw dragging on or frictionally engaging the rail tie; this disadvantage being dispensed with by the employment of a roller.

A further object is to provide a spike puller which is easily and quickly operated and which is effective and durable in use.

An additional object of the invention resides in the provision of a spike puller which is simple in construction, consists of few parts, and which may be manufactured and placed on the market at a minimum cost.

With the above and other objects and advantages in view the invention consists of combinations, constructions, arrangement of parts, and general assemblage to be hereinafter enlarged upon and pointed out in the appended claims.

On the drawing:

Figure 1 is a side elevation of a spike puller constructed in accordance with my invention;

Fig. 2 is a front elevation of the device;

liig. 3 is a rear elevation of the same; an

Fig. 4 is a modified form of the invention.

Referring to the drawing wherein like parts are designated by like characters of reference, the numeral 5 denotes a shank or handle which is relatively long and is cast from non-bendable metal.

A claw 10 is formed upon the lower end of the shank which is provided with the usual spike receiving slot 11.

Formed in the heel of the claw 10 is a transverse opening 12 which is cylindrical and opens upon the face of the heel and extends the entire width of the heel.

Rotatable in the transverse opening 12 is a roller or cylinder 13 which is of a diameter to project beyond the plane of the heel and contact with the rail, tie or other object. This roller 13 serves as a fulcrum for the claw 10 as well as to overcome friction between the heel of the claw and the tie.

Washers 14 are arranged upon the sides of the claw adjacent the heel and overlie the ends of the roller to retain the latter in the opening 12. Set screws 15 retain these washers in place.

The embodiment of the invention here shown and described is considered the preferred construction but it is to be understood that the same is susceptible to various modifications and that my limits of modification are only governed by the sub-joined claims.

What is claimed is:

1. In a spike extractor, a bar, a claw formed upon one end thereof and provided with a spike receiving slot, the heel of the jaw being uniformly curved and provided with a transverse cylindrical opening that opens upon the under face of the heel at the curved portion normally above the contacting surface when the claw is initially engaged with the spike, a cylindrical roller rotatable in the opening and adapted to contact with the object from which the spikes are to be extracted to reduce friction therebetween, and means at opposite sides of the bar and rotatable tangentially in overlapping relation to the ends of the roller, to prevent endwise movement of the roller and permit free turning thereof.

2. A spike puller comprising a bar having a claw and a curved heel portion extending therefrom and terminating in the handle of the bar, the heel of the claw at the curved portion being provided with a transverse substantially semi-cylindrical opening that opens upon the under face of the heel at the point of curvature thereof normally above the contacting surface on which the bar rests when the bar is initially engaged with a spike, a roller rotatably mounted in the opening and adapted upon the depression of the bar to contact with the objectupon which the spikes are to be extracted, screws removably secured in opposite sides of the bar adjacent to the opening and circular Washers rotatably mounted on the as myown, I have hereto affixed my signaslirews11 and partially overlyinlgl" thenends of ture in the presence of two Witnesses. t e r0 er, W ere y to turn as t e r0 er turns to cause even Wear of the Washers, said Wash- VERNON COBB 5 ers serving to prevent longitudinal dis- Witnesses: l

placement of the roller. L. L. TOWNLEY, In testimony that I claim the foregoing WILBUR STUMP.

Images