US1284938A - Bolt or spike extractor. - Google Patents

Description

F SIMONES. BOLT 0R SPIKE EXTRACYTOR. APPLmAHoN. FILED FEB. 2l. 1917.

Patented Nov. 12, 1918.

u vente@ FRANK SIMONES, 0F BLUE JAY, WEST VIRGINIA.

BOLT OR SPIKE EXTBACTOR.

Specification of Letters Patent.

Patented Nov. 12, 1918.

Application led February 2l, 1917. Serial No. 150,172.

To all whom it may concern: v

Be it known that I, FRANK SrMoNns, a citizen of the United States, residing at Blue Jay, in the county of Raleigh, State of West Virginia, have invented a new and useful Bolt or Spike Extractor; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention is a bolt and spike extractor and is designed particularly for use in railroad work.

Its principal object is to provide for the removal of bolts or spikes by means that will exert a pull substantially in the direction of the length of the bolt or spike to be removed.

A second object is to provide a device in which both bolt pulling bars and spike extracting bars are interchangeable on a supporting column.

A third object is to provide a simple structure that will effectively accomplish the work it is called upon to perform.

Any difference between the drawings and specification involving the illustration of a structure not described, or vice versa, is not to be construed as an abandonment of right to such structure. l

A certain definite design has been adhered to in setting forth this invention. but the invention is not to be confined to this particular design. p

Practice may require certain changes and alterations which the right is reserved to make, provided such changes and alterations are comprehended by the appended claims.

The same numerals of reference designate the same part throughout the several figures of the drawing, wherein:

Figure 1 is a perspective viewV of the invention. Y

Fig. 2 is a longitudinal sectionalv view taken' on one side of the puller bar. This v'view shows the invention in a position preparatory to removing the spike.

Fig. 3 is a similar section view to Fig. 2. lhis ligure omits the upper part of the devvice and shows the puller bar used for eX- tracting bolts.

Fig. 4 is a cross sectional view on the line 4-4 of Fig. 2. The puller bar for extracting bolts takes the place of the spike puller shown in Fig. 2. y

Fig. 5 is a section through one end of the showing the spring operated `base 2. The bar 3 is provided with an eX- tension 5 which is bifurcated so as to form the forked projections 6 whose upper facing corner edges are dished out, so that they may easily engage under the .head of the bolt or spike to be pulled. On the lower' back edge of the bar 3 a projection 7 is formed and is suitably tempered, so that it may be hit with a maul to aid in inserting the forked proecltion 6 beneath the head of the spike or The base 2 is open directly below the recessed portion of the column 1, as at 8 and has a dished out portion 9 leading in to this open space.

The puller bar 3 has the teeth 10 cut on its longitudinal edge above the projection 7. Across the teeth, this bar is narrower than elsewhere, the greater width of the bar forming the shoulders 11 which bear against similar shoulders formed in the column 1.on the facing sides of the recessed portion. At substantially its vertical middle, the column 1 has its two halves connected together by the integral web 12.

Above the web 12 the column 1 is further recessed providing a compartment for the lever pinion 13 and pawl 14.

On opposite sides, the column 1 is provided'with holes in which the pin 15 is pivoted. This pin carries the pawl 14 which is secured to it frictionally. The pawl has a tail 16 and near its'nose it is provided .with a pin 17, the pin 17 having a transverse hole through which one end of the spring 18 protrudes. The spring 18 winds around the p in 15 and has a U-shaped end 19 which engages the eccentrically moving pin 20. This spring loosely engagesv the pin 15 and any movement of the pin 20 serves to rock the spring, causing it to move the pawl 14 into or out of engagement with the teeth 10 of`the puller bar. The pinv 20 is attached toone side of the center of the plate 21 which is turned by a small shaft 22 that has a crank handle 23 attached to it. The crank 23 is exterior to the column 1 and its spring operated pin is adapted to engage either one of the holes 25 which are at equal distances from the axis of rotation of the crank. At the top of the column 1 the elongated holes 2G are formed in either of its two sides. 1n the bottom of these holes the shaft 27 is pivoted. Pinion I13 is held on this shaft frictionally and has a sleeve 29 secured to it, this sleeve being for the purpose of receiving a handle for operating the pinion. A retaining member 30 extends across the face of the column 1 and operates to hold the puller bar in position within the column.

In service the invention is operated by placing the base 2 close to the spike to be pulled. The projection 7 of the puller bar 3 can then be hit with a maul or hammer, (since this projection extends far enough out of the column to allow its being hit), so that its bifurcations 6 will engage under the head of the spike to be pulled. The ,pinion 13 is then turned by pressing on the handle inserted in sleeve 29. This operation raises the puller bar and consequently draws the spike, the pawl 14 meanwhile dropping in between the teeth 10 and serving to hold the puller bar in the elevated position to which it was raised by the pinion 13. When the sleeve 29 has been lowered as far as possible, the pinion 13 is disengaged by the puller bar 3 by raising its shaft 27 to the tops of the elongated -holes 26. The sleeve 29 is then raised to a position where it may be given another downward movement, when the pinion 13 is brought into rengagement with the puller bar 3 by lowering its shaft 27 again to the bottoms of 2G. A second downward movement of 29 then raises the puller bar 3 an additional distance, the paw] 14 engaging between each successive lower pair of the teeth 10 as the bar 3 ascends. The operation of engaging and disengaging the pinion 13 from the bar 3 can be repeated until the bolt or spike has been fully removed. The crank 23 may be turned a half a revolution, so that its pin 24 may engage the hole 25 opposite from the hole which it formerly engaged. Thisl operation rotates the plate 21 thus moving the pin 20 to the other sidel of the shaft 22, the U-shaped end l19 of the spring 18 moving with the pin 20 and acting to throw the pawl 14 permanently out of engagement with the puller bar 3. With the pawl 14 disengaged, the puller bar 3 may be moved up or down at will. When it is desired to lower the puller .bar with the aid of the pawl, the pinion 3 is operated as in the .raising operation to momentarilyrelieve the pressure on the pawl when the latter is disengaged temporarily from the vbar by pressing on its tail 16. The bar may then be lowered by raising the handle attached to sleeve 29, the pawl being allowed to drop back in engagement with the bar while shifting the pinion 13 to begin another lowering operation.

The puller bars for bolts and spikes differ only in the shapes of their bifurcated ends, the letter a following the designations of the drawings of the bifurcated end of the bolt puller bar, so as to distinguish these parts from the parts performing similar functions of the spike pulling bar.

What is claimed is:

1. A -bolt extractor comprising a puller bar having teeth on one of its longitudinal edges and having a bifurcated arm integral with its lower end and perpendicularly disposed with reference to the length of the bar, said arm being dished out where it is bifurcated, a column for supporting the puller bar and recessed to receive the bar internally, said puller bar lhaving a projection on its bottom end opposite the vbifureated arm and protruding out of the column, whereby said projection may be hit with a maul to drive the bifurcated arm underneath the head of a bolt, said column having internal longitudinal shoulders adjoining' the bar to keep the latter in alinement with lthe column, a raising pinion pivotally supported in the column, a pawl pivoted in the column and engaging the teeth of the puller bar, and means for effectingthe permanent disengagement of the -pawl from the teeth of the puller bar.

2. In an extractor, a standard having a vertically extending channel, lthe forward portion of the channel extending uninterruptedly the full height of the standard, the side walls of the channel, at the rear thereof and substantially midway its height being connected by a web, substantially half of the forward part of said channel having its `side walls provided with vertical shoulders,

a vertically disposed extracting bar having teeth on its rear face and being guided by said shoulders, a combinedguide and retaining bar extending across the Vupper forward portions of said channel to prevent forward movement of the upper end of the vextracting bar, said standard having a base provided with an elongated opening, the lower end of the extracting bar provided with a forwardly ext-ending bifurcated foot to engage a spike, said extracting bar 'having at its lower end a projection opposite said foot and projecting far enough rearwardly beyond the channel, whereby it may be hit to drive the foot under the head of the spike, and means for raising the extracting bar.

A3. In lan extractor, a standard having a base provided with an elongated opening, said standard being channeled vertically its entire height, said channel having its side walls provided with guide shoulders, an extracting bar'having rack teeth mounted in the channel and guided by said shoulders, the lower end. of the extracting bar having a forwardly extending bifurcated spike engagin foot and provided with a rearwardly extent ing projection protruding far enough beyond the rear part of the channel, whereby said projection may be hit to drive the foot under the head of the spike, means for cooperating with the teeth of said bar to raise the extracting bar, said guide shoulder for substantially half the height of the standard being cut away, and a retaining member extending across the upper forward portion of the channel above and beyond where said shoulders are cut away and extending across the forward upper edge of the extracting bar, whereby said extracting bar may slightly oscillate, when the Operating means is disengaged from the teeth and the projection struck.

et. The combination with a standard having an open ended channel extending longitudinally vertically thereof and being open on two of its sides, the sides of the channel terminating in a base provided with an elongated opening adjoining to and being perpendicular to the lower end of the channel; of a vertically disposed extracting bar mounted in said channel and provided with rack teeth arranged longitudinally thereof, the lower end of said bar having a laterally extending spike extracting claw operable through the opening of the base and provided with a projection oi'set above and extending in a direction opposite the claw, said projection protruding a substantial distance beyond the sides of the standard, where it may be struck to drive the claw under the spike, the adjacent faces of the sides of the standard having longitudinal vertical guide shoulders to be engaged by the extracting bar to guide the same in its vertical movement, transversely extending means integrally connecting the opposite sides ot' the standard on the front and the rear of the bar to render the side walls of the standard near their upper parts rigid, means for moving the bar intermittently, and means for retaining the bar in dierent raised positions.

5. In an extractor, the combination with a vertically movable rack extracting bar having at its lower end a laterally extending spike extracting claw and an oppositely arranged maul contacting abutment offset above said claw, and adapted to be struck, whereby the claw may be driven under the head of the spike; of a standard having a channel extending vertically and longitudinally therein for the reception of said bar, the adjacent side walls of the channel having vertical guide shoulders for the bar, the side walls of the channel being of substantially less width transversely than the length of the abutment to avoid interference with the maul during its successive impacts on the abutment, me'ans coperating with the teeth of the rack bar for raising the same and detaining means coperating with the teeth of the bar to hold it in different raised positions.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANK SIMONES.

Witnesses JNO. A. Oms, GEO. W. REBER.

Unpic of this patent may be obtained for ve cents each, by addressing the Commissioner at Patents Washington, D. 6.

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