US798058A - Spike-puller. - Google Patents

Description

PATENTED AUG. 22, 1905.

D. OBRIBN. SPIKE FULLER.

`same in line 3 3, Fig. 2.

UNITED STATES PATENT OFFICE.

DANIEL OBRIEN, OF BUFFALO, NEW YORK, ASS-IGNOR OF ONE-FOURTH TO JUSTUS MOELLER. OF BUFFALO', NEW YORK.

SP'I'KE-PU'LLE R.

Specification of Letters Patent.

Patented` Aug..22, 1905-.

.To ffl/ZZ whom, it may concern.-

Beit known that I, DANIEL OBRIEN, a citi-- zen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented a new and useful Improvement in Spike-Fullers, of which the following is a specification.

This invention relates to an implement for extracting' spikes, nails, and the like from the Wood or other body into which they'aredriven.

In repairing railways the spikes are withdrawn from the ties to permit of renewing the rails. The means heretofore employed' for withdrawing these spikes were undesirable, because they bent the spikes and necessitated straightening them before they could be used again.

The object of this invention is toI produce a simple spike-puller for this purpose which permits of easily pulling the spikes ina perfectly straight condition, so as to avoid the expense of straightening the same.

In the accompanying drawings, Figure l is afront elevation of my improvedl spike-puller. Fig. 2 is a vertical longitudinalsection of the same. Fig. 3 is a vertical cross-section of the Fig. t is a fragmentary rear elevation of the spike-puller'. Fig. 5 is a fragmentary longitudinal section showing a modified construction of my invention.

Similar letters of reference indicate corre-V spending parts throughoutthe several views.`

The supporting foot or frame of the spike jaws D D, formed on the lower arms of a pairv of gripper-levers E. The latter are crossed centrally like a pair of pincers or tongs and are pivotally connected by a transverse pin or bolt f, passing horizontally through the overlying parts of the levers.

G G represent a pair of links, each ofwhichv is pivotally connected at its lower end by' a pin g with the upper bifurcated arm of one of said gripper-levers. The upper ends-of bothlinks are pivoted by a single pin /t to thelower bifurcated end of a swivel or clevis H. The latter is pivoted by a pin e' to the-short front arm I of a hand-lever, which is pivotally supported on the upper end of the standard, so as to turn in a vertical plane. Upon raising the long rear arm I/ of the hand-lever when the parts are assembled, as shown i-nFi-g. 2*,'its front armf and the parts connected therewith are depressed, and at the Sametime thelin-ksG Gr turnthe gripper-levers inl thedireetion for spreading oropeni'ng their jaws. While in this The preferredi mean-s fo rthlus'fguiding tl'1'e"g`ripv per-levers 1s shown 1n the drawmgsandiscorr structed1 as follows:v J' representsa gui'd'eebloek which moves vertically in an upright slot c in,` thecentrall part of the standard and whichy hasfil'at faces jj on horizontally-opposite sides for engaging witlr theA sides oftheslot, asshownin Fig.` 8,- a-nd preventing. the guideblock from turning. Thegripperelev'ers are connectedy with the guide-block by extending the pivot-bolt f rearwardly'througha hori- Zontal:openingintheI block andconning these levers loosely against the front side of the block by screwenutsf, applied to the rear end of the bolt andl bearing.' against the rear side ofthel block', as shown iny FigrB.` The guid'e-bloek-is eonnedagainst endwise-move-- mentin the sl'ot'of the standard by a head Z, ixedvon" the front end thereof and bearing against the standard on opposite sides of its slot, and' a Washer'l, arranged loosely on the rear end of thebl'ocki and interposed between the rearside of the-standard and the'front'side of theiscrew-nuts f.: As the gripper-llevers rise with the s-pike the. guide compels the' same tov-'move vertically/and avoidsth'eobjeetionafble' bending of the spike. Ify desired',- the spike may be drawnv out part way by oney pull of the lever, after whichone or more new holds ma-y be' taken on theispike'for com-plet-v ing drawing'of the same by a pumping action. In order to; permit of drawing the spike in this manner; the jaws of they gripperslevers are extended forward-ly, as shown in Fig. 2', topermit the spike to: pass upwardly along the-front sideof the levers and-clearthesame.'y

For'the purpose of enabling the' spi-ke tobewithd-rawn with azsingle Stroke of the handlever means are provided for shifting the le- I ver upward bodily and increasing thel amplitude of its effective movement as the pulling of the spike progresses. The preferred means for this purpose (shown in Figs. 1, 2, and, 3) consist of a horizontal pivot-pin m, passing through the hand-lever, and vertical slots m' in lugs or ears M, arranged on the upper end of the standard on opposite sides of the handlever, and a cam n, arranged on the under side o f` the hand-lever adjacent to the pivotpin m and adapted to bear against a shelf or abutment N on the upper part of the standard between said ears. During the first part of the downward movement of the hand-lever for closing the gripper-jaws on the spike and starting the extraction of the spike the pivot-4 pin rests in the lower ends of the slots m', as shown in Fig. 2. After the first part of the lifting movement of the spike has been thus effected the cam a during the continued forward or extracting movement of the lever bears against the shelf N and causes the lever to be raised bodily, thereby increasing the lifting effect of the same and permitting of drawing au ordinary spike with one operation. During the bodily upward movement of the hand-leverits' pivot-pin rises in the slots of the ears M.

.Instead of arranging the pivot-pin on the hand-lever and the slots' for guiding the same on the standard, as shown in Fig. 2, this construction may be reversed, as shown in Fig. 5, in which the pivot-pin m2 is fixed in lugs M on the standard and passes through a slot m3 in the lever, thereby obtaining the same result as in the first-mentioned construction.

For the purpose of enabling the operator to obtain a more favorable leverage and also to permit of operating the hand-lever more conveniently in a standing position the rear arm or handle of the hand-lever is so arranged that its general direction is 4at an oblique vangle to a line drawn through the pivot of this lever and its pivotal connection with the gripper-operating devices. This construction of the hand-lever also permits of reversing the same, so that a spike can be pulled either by a downward or an upward movement of its rear arm or handle. When the hand-lever-is ful'crumed between its arms on the standard and pivotally connected at the end of its short arm with the gripper devices, as shown in full Y.

lines in Fig. 2, the spike is pulled by a downward movement of its handle; but when the hand-lever is pivoted on the standard at the I end of its short arm and pivotally connected between its arms with the gripper devices, as

shown by dotted lines in Fig. 2, the pulling of the spike is effected by an upward movement of the handle. By this means the spike can be pulled from either side of the standard as may be most convenient or as circumstances may require. When the hand-lever is operated with a lifting movement of its handle, the advantage of moving the lever upward bodily is not obtained, as the cam n and shelf N do not cooperate in this changed position of the parts.

When spikes are rusted in the wood, they stick much faster than when newly driven, and therefore require more power for extracting them. In order to permit of exerting a greater pulling effect on spikes of this character, the spike-puller is provided with an attachment whereby the power of the same may be increased When necessary. The means for this purpose shown in the drawings are conv structed as follows: O represents a starting.- lever pivoted between its arms to the lower part of the standard by a transverse pin 0 and engaging its front arm with the guideblock, preferably with the under side of its front head, as shown in Fig. 2. P represents an upright link which connects the rear arm or handle of the hand-lever with the rear arm of the starting-lever. handle or long arm of the hand-lever the front arm of the starting-lever rises and engages with the guide-block and lifts the latter, together with the gripper-jaws and spike grasped thereby, at the same time thatthese parts are being lifted by the hand-lever. The rear arm of the'starting-lever O is longer than the distance from the pivot m to the pivot p on the main lever. It follows from this that when the starting-lever is in use the same will exert a more powerful lifting effect on the gripper-levers than by using the main lever alone. The differential of motion between the main and starting levers during the initial part of the pulling movement is compensated for by the pin-and-slot connection between the main lever and the standard, whereby the main lever is enabled to hold the grippers in a closedposition while the startinglever is effective. By this means the starting movement of the spike is effected by the combined action of the hand-lever and starting-lever and the final extracting movement thereof is effected solely by the handlever.

For the purpose of enabling the tool to be used without the auxiliary lifting attachment when pulling easy spikes or when using the tool with the hand -lever in the position shown in dotted lines in Fig. Q means areprovided for disconnecting the attachment from the tool. This is effected by making the pivot-pin 0 of the starting-lever removable from the standard and detachably connecting the upper end of the link P with the handle of the hand-lever by engaging a crossbar pon the bifurcated upper end of this link with a socket, notch` or shoulder q in the under side of the handle and confining this bar in said notch by a spring-keeper fr,

which is securedY to the handle and extends over the mouth of said notch.

My improved implement pulls spikes hav- Upon depressing the ing heads or no heads with equal facility, thus rendering the same especially desirable for railroad Work,in Which the spike-heads are frequently broken off, so that the same can be removed only with great difiiculty or must be abandoned.

I claim as my invention- 1. A spike-puller comprising a standard, a pair of crossed gripper-levers, a guide-block movable on said standard, asingle pin or bolt pivotally connecting said gripper-levers With each other and with said guide-block, and a handle -lever pivotally supported on said standard and operatively connected with said gripper-levers, substantially as set forth.

2. A spike-puller comprising a standard having a vertical slot, a pair of crossed gripper-levers, a guide-block movable vertically in said slot and having a head at one end and a Washer at the other end which bear against, opposite sides of the standard, a pin or bolt pivotally connecting said gripper-levers with' each other and with said guide-block, and a hand-lever pivotally supported on said standard and operatively connected with said gripper-levers, substantially as set forth.

3. A spike-puller comprising a standard having a vertical slot, a guide-block movable vertically and having fiat faces on its opposite sides which engage With the .opposite sides of said slot, a pair of cross gripper-levers pivotally connected with said block, and a hand-lever pivotally supported on said standard and operatively connected with said gripper-levers, substantially as set forth.

4. A spike-puller comprising a standard, a guide-block movable vertically on said standard, a pair of crossed gripper-levers, a pin pivotally connecting said levers With each other and also with said guide-block, links connected With the upperarms of said levers, and a hand -lever pivoted on said standard and having one of its arms pivotally connected with said links While its other arm is arranged at an angle to a line drawn through the pivots connecting the hand-lever with the standard and said links, substantially as set forth.

5. A spike-puller comprising a standard, a pair of gripper-levers, a guide-block sliding vertically on said standard, a pin pivotally connecting said gripper-levers with said block, a hand-lever operatively connected With said gripper-levers,means for loosely pivoting said connecting said gripper-levers with said block,

ahand-lever operatively connected with said gripper-levers, a pivot-pin arranged on the hand-lever, a pair of lugs arranged at the upper end of the standard and provided With vertical slots which receive said pivot-pin, and a cam formed on the under side of said lever and adapted to engage With an abutment or shelf on the upper end of the standard, substantially as set forth.

7. A spike-puller comprising a standard, a pair of gripper-levers, a hand-lever pivotally supported on the standard and operatively connected with the gripper-levers, and an auxiliary start-ing device operatively connected with said gripper-levers and said hand-lever, substantially as set forth.

8. A spike-puller comprising a standard, a guide-block movable on said standard, a pair of gripper levers pivoted on said block, a hand-lever pivotally supported on said standard and operatively connected with said gripper-levers, a starting-lever pivoted on the standard and engaging its front arm With said block, and a link connecting the rear arm of said starting-lever with the hand-lever, the length of the rear arm of said starting-lever being greater than the distance from the pivot of said hand-lever to its connection with said link, substantially as set forth.

9. A spike-puller comprising a standard, a guide-block movable on said standard, a pair of gripper-levers pivoted on said block, a hand-lever pivotally supported on said standard and operatively connected with said gripper-levers, a starting-lever pivoted on the standard and engaging its front arm with said block, and a link connected at one end with the rear arm of the starting-lever and detachably connected at its opposite end with said hand-lever, the length of the rear arm of said starting-lever being greater than the distance from the pivot of said hand-lever to its connection With said link, substantially as set forth. l0. A spike-puller comprising a standard, a guide-block movable on said standard, a pair of gripper -levers pivoted on said block, a hand-lever pivotally supported on said standard and operatively connected with said gripper-levers, a starting-lever pivoted on the standard and engaging its front arm With said block, a link connected at its lower end with the rear arm of the starting-lever and provided at its upper end with a cross-bar which engages With a notch in theunder side of the hand-lever, and a spring-keeper secured to the hand-lever across the mouth of said notch for releasably confining said cross-bar therein, the length of the rear arm of said startinglever being greater than the distance from the pivot of said hand-lever to its connection with said link, substantially as set forth.

Witness my hand this 28th day of February, 1905.

DANIEL oBRrEN.

Witnesses:y

JUsTUs MOELLER, THEO. L. Por?.

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