US67552A - Improvement in lail-extbactebs - Google Patents

Description

-@uitrit tstes sttat @Hite HENRY JEFFREY,l 0F ST. CHARLES, MISSOURI. Letters .Patent No. 67,552, dated August 6, 1867.

vIllllPROVEMEIl'I IN NAIL-EXTRACTERS.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, HENRY JEFFREY, of. St. Charles, in the county of St. Charles, and State of Missouri, have invent-ed a new and improved Claw-Bar for DrawingRailroad Spikes; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of-this specificatinin which- Figure A1 is a side view of'my improved railroad claw-bar. i t

Figure 2, an edge view of the same.`-

Figure 3, a crosssectiontaken inthe line :tr x, g. 1.

Figure 4, la view of the connecting-bolt of the claw-plates. V

Figure 5, a view of the claw-bar, showing its mode of application for drawing spikes.

Similar letters of reference indicate like parts.

This invention relates to-a new and useful improvement in the construction of a claw-barfor drawing railroad spikes; and consists in attaching Atwo oval-shaped steel claw-plates on opposite sides vof the bent end of an iron bar or bent lever by means of a steel bolt and nut, as hereinafter more particularly described.

A represents a long iron bar or lever, bent at one end at an angle' of forty-five degrees, on which -bent end a, are bolted on opposite sides two oval-shaped steel plates'b b, with a square bolt'yc, to hold them rigidly in place on the bar. The plates are fastened with their major diameters at right angles to the bent end a, and therefore diagonally to the line of the bar A, as shown in iig. l, for the purpose of changing the position and power of the fulcrum in: drawing spikes by reversing the ends -of the claw-plates after starting the spikes with the claw 'at one end. The plates b b are just wide enough apart atl their ends toreceive the shank of a rail spike freely,

and the ends have recesses cut in tliem'to form two hooks or claws e e on each end of each plate, a-s seen in 5g. 1.' The claws e e are'made double or single, as desired, by cutting recesses on one or both sides of the points, as shown 'in' tig. 3. The single claws, formed by cutting recesses on the inner sides of the points, and bevelling the outer sides, as shown clearly in iig. 3, are especially adapted to the drawing of rail-chair spike, while those which have the recesses` on both -sides of the claws are for general use. The advantage ofvmaking the cla-ws e e I double in this manner consists in doubling the capacity for service of the claw-bar by reversing the plates bib when-the points of the claws break, which lsometimes happens when it would be inconvenient to stop workfor repairs.

,'.llie manner of a )l 'inu in im roved claw-barfor drawinv` railroad s ikesisiillustrated in tie. 5. Alon Pl e Y P e P e g spike can be started with the clawplates applied at one end with a short purchase, and may then be drawn, by changing ends, with a long purchase, the position and power of the fulcrum being changed by the reversal ofl the plates, so that theV longest spike can he easily drawn without bending it.

Having described my invention, I claim as new and desire to secure by Letters Patent-f '.lhe steel plates b b, provided with double or single claws c e, in combination with the bent lever A, constructed and operating :xs described.

HENRY JEFFREY.

Witnesses:

JonN DONALDSON, BERNARD MORAN.

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