US98977A - Improvement in spike-extractor - Google Patents

Description

dinard gieten WILLIAM KEGG, 0F LASSELLSVILLE, NEW YORK.

Letters Patent No. 98,977, dated January 18, 1870.

IMPRovEm-:NT 1N SPIKE-EXTRACTOR.

'l'he Schedule referred to in these Letters Patent and making part of the same.

To .all whom it may concern Beit known that I, WILLIAM KEGG, of Lassellsville,in the county of Fulton, and State of New York, have invented a new and useful Improvement in Spike-Fullers; and I do herebydeclare 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 specification.

This invention relates to a new and useful improvement in a machine for pulling spikes, more especially designed for pulling railroad-spikes, but applicable to other purposes; and

The invention consists in the construction kand arrangement f parts, as hereinafter more fully described. y

In the accompanying sheet of drawing- Figure 1 represents a perspective view of the machine, showing it as when applied over a rail, for drawing a railroad-spike.

Figure 2 is a longitudinal section of the lever, showing, also, a section of the link by which the lever is connected with theV pincers.

Figure 3 is a top or plan view of the fulcrum-stand,

showing the fulcrum-rollers of the lever.

Similar lettersof reference indicate corresponding parts.

A is the stand on which the lever is supported.

B is the level'. l

C is the connecting-link.

D D represent the jaws of the pincers.

' E F represent the fulcrum-rollers, on which the le\ ver heals in operating -the machine; consequently, the lever operates on a variable fulcrum.

The upper ends of the pincer-jaws are tongued and grooved, and -pivoted together. They are also connected together from 'the points G G, by short .bars H H, which form a point at each end.

By the central joint-pin I they' are connected with the lower end of the connecting-link C.

The link slides on grooves on each side of the upper end of the pincers, so that the jaws preserve, atl all times, their true and relative positions.

.I J represent the lower points o f the jaws of the pincers, which grapple with the head of the spike when the machine is in use, as seen in thedrawing.

When the machine' is placed, and applied to the spike, as seen, the lever bears at first on the forward roller E, which gives the shortest purchase, and al- .lows the greatest force to be applied for starting the spike.

As the long end ot" the lever is brought down, it strikes the back roller F, and the4 rounded surface K rolls forward, so that the spike ,is maintained in a vertical position while being drawn, and without. crooking or bending. l I

It will be seen, that as the power is applied, the pincers (by virtue of the connecting-bars H H) willnot only be raised, but the jaws will be drawn together, the force applied being duly proportioned for the accomplishment of each purpose. The spike is raised by a single eort. As the lever strikes the back roller,- fulcrum F, the revolving motion of the roller com- -mences, changingthe position ofthe lever, and invcreasingthe distance of the fulcrum froml the point ot' resistance, and thereby retaining the spike in a Aperpendicular position. n

L is a groove in the side of the lever, and M is a pimin the stand, which engages with the groove when the lever is in place. By this means the lever is attached to the standard. lhere may be a groove and pin on each side, it' desired. rIhe lever isv removed from the stand by raising the back shoulder N over the back roller F.

Having thus described my invention,

I claim as new, and desire to secure by Letters `Patent- 1. The combination of lever B, constructed as set forth, with the fulcrum-rollers E F, so as to give the greatest leverage in starting the spike.

2.` Attaching the removablev lever to the frame on which it is fulcrumed, by means of the groove in its side and a pin on the frame, as set forth.

WM. KEGG.

Witnesses:

DANIEL LAssELL, S. S. STEWART.

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