US1835443A - Nail and spike extractor - Google Patents

Description

Dec. 8, 1931 swo ET AL 1,835,443

NAIL AND SPIKE EXTRACTOR Filed May 1, 1930 2 Sheets-Sheet 1 Fred Swoycf gmmtow Thomas JBr yanZf,

chm/M 1931- F. SWOYER ET AL 1,335,443

NAIL AND SPIKE EXTRACTOR Filed May 1, 1930 2 Sheets$heet 2 Patented Dec. 8, 1931 LUNITVE'DLS'JIATES PATENT OFFICE FRED SWOYER, or SILVER GROVE, AND THOMAS J. BRYANT, or oovnveron, KENTUCKY "ivAIL Ann SPIKE EXTRACTOR V I Application filed Ma 1;

The invention extractor. i r

The object of the present invention is to improve the construction ofnail and spike extractors and toprovidea simple, practical and efiicient nail and spike extractor of strong, durable and comparatively inexpensive construction equipped with'a plurality of nail and spikeextracting claws'adapted to successively operate on a nail or spike and coa'ct with a single fulcrum of the extractor and obviatethe necessity of employing a socalled heel or other means 'supplemental to a single fulcrum face forenabling the final stages ofthe extraction of along nail or spike to be completed.

Afurther object of the'invention is-toprovide a nail and spike extractor equipped with a relatively short outer claw adapted to enable great leverage to'be exerted on a nail or spike to start it so that the nail'or' spike, after being started, may be successively operated on by a relatively long claw and co1nrelates to a nail and spike pletely extracted by the same.

Another objectof the invention is to arrange the relatively short and relatively long outer and inner claws so as to coact with'a single fulcrum to obviate the necessity of providing a'plurality offulcrums and of changing the fulcrum in changin from one claw to another. It is also an object of the invention to enable the said inner and outer clawsv to be arranged, when desired, so that the outer claw will bear against an intermediate portion of a long nail or spike while the same is being operated on by the relatively long claw, to avoid the severe bending of the nail or spike whichresults'from the use of an ordinary single claw nail or spike extractor, so as to enable the nail or spike to be extracted at the expenditure of less power than when the nail or spike is severely bent and caused to frictionally engage andbind against one of the walls of the hole.

WVith' these and other objects in view, the

1930. Serial no. 449,632.

invention consists in the construction and novel combination and arrangement of parts hereinafter described, illustrated in the accompanying drawings, and set forth in the claims hereto appended, it being-understood that various changes in the form, proportion, and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit of the invention or sacrificing any of the advantages thereof. e r

In the accompanying drawings:

Figure l is a perspectiveview of a nail and spike extractor constructed in accordance with this invention.

Fig. 2 is a side'elevation of the same illustrating the operation of the outerclaw, the

latter being in its initial position in full lines and its final position in dotted lines. v s Fig. 3 is a similar view illustrating the operation of the inner claw.

Fig. 4 is a side elevation showing a nail and spike extractor provided with three claws. Inthe accompanyin drawings, in which is illustrated the preferred embodiment of the invention, the nail and spike extractor comprises in its construction a shank 1 consisting of a-straight bar, preferably octagonal in cross section and having itscurved outer end 2 curved forwardly and tapered as shown to increase the thickness andstrength of the bar at the outer end, so that the nail and spike extractor will be reinforced at the fulcrum formed by the curved outer end. The curved outer end 2 presents an outer convex face 8 which forms a single rolling fulcrum for the nail and spike extractor, which is provided with a relatively short outer claw 4 forming a prolongation of the curved end 2 of the shank and presenting an outer face 5 which merges into the curved fulcrum face 3 of the end 2 of the shank. The nail and spike extractor is also provided at the curved end 2 with a relatively long claw 6 extending from the inner side of the curved end 2 of the shank and arranged at an angle to the relatively short outer claw l. Both claws are arranged to cooperate with the single rolling fulcrum of the shank and they are provided with similar openings 7 and S and have grooves 9 and 10 at their inner ends forming continuations of the nail and spike receiving openings of the claws and adapted to accommodate the headsof the nails and spikes. The openings 7 and 8 have side walls which are parallel at the front faces of the claws, and the said walls are inclined and converge towards each other both longitudinally and laterally. The walls of the grooves are curved and connect and merge into the inner ends of the side walls of the openings.

The claws are spaced one above the other and extend from the same rolling fulcrum and each successive claw has a longer leverage. Any number of claws may be employed, and in Fig. 40f the drawings is illustrated a nail and spike extractor having three claws 11, 12 and 13.

In operating the nail and spike extractor, the relatively short outer claw is engaged with a nail or spike as illustrated in Fig. 2 ofthe drawings. The outer claw having a short leverage enables the operator with a short arm movement to start the extraction of the nail or spike with less effort than with an ordinary single claw nail and spike extractor, which of necessity and for practicability must be constructed with a longer leverage than the short outer claw in order to I; enable the operator of such single claw extractor to complete the extraction of short nails andv spikes and. also to make as full and as complete an extraction of long nails and spikes as possible. After the initial'and partial extraction of a nail or spike, as illustrated in dotted lines in Fig. 2 of the drawings, the nail is loosened in the hole and can then be further extracted with less effort than at the beginning of the operation. The operator engages the head of the partially extracted nail or spike with the inner relatively long claw, as illustrated in Fig. 3 of the drawings. The relatively long inner claw, having a longer leverage than the outer claw, enables the operator to complete the removal of the nail or spike with another short arm movement and without building up a fulcrum under the single rolling fulcrum formed by the curved end of the shank.

The nail and spike extractor may be constructed of any suitable size, and be provided with any number of claws. The size of the devices will correspond to the character of the nails or spikes to be extracted. A much lighter and shorter handle may be employed than is usually required by the ordinary single claw extractor, as the short claw will enable a nail or spike to be readily started with a short arm movement, and the initial stage of the extraction of a heavy nail or spike may be accomplished with less effort than is required by the ordinary single claw extractor, and after the nail or spike is loosened in the hole by the initial stage of the extraction, the intermediate and final stages of removal may be effected with av longer and lighter claw than is possible with a single claw extractor because of the loosening of the nail or spike in. the initial stage of the extraction. The relatively short outer claw of the nail and spike extractor during the final stages of the extraction will come in contact with the nail or spike as illustrated in Fig. 3 of the drawings, and eliminate some of the angular pull of the relatively long claw and will assist materially in the-ease of'the extraction.

WVhat is claimed is:

1. A nail and spike extractor comprising a shank consisting of a bar having its outer end curved forwardly and presenting an outer curved end face forming a single rolling convex fulcrum, a relatively short outer claw forming a prolongation of the curved end of the shank and having an outer face merging into the curved face of the rolling fulcrum, and an inner relatively long claw extending from the curved end of the shank, said inner and outer claws having similar claw openings and both cooperatingwith the-said single fulcrum to successively operate on a nail or spike, and the outer claw being adapted to cooperate with the inner claw and bear against an intermediate portion of the nail or spike while the same is being operated on by the inner claw during the final stages of extraction of said nail or spike to increase the ease of extraction.

2. A nail and spike extractor comprising a shank consisting of a bar having its outer end curved forwardly and. presenting an outer curved end face forming a single rolling convex fulcrum, a relatively short outer claw forming a prolongation of the curved end of the shank and having an outer face merging into the curved face of the rolling fulcrum, and an inner relatively long claw extending from the curved end of the shank, said inner and outer claws having similar openings converging inwardly from parallel lines at the front faces of the claws and the latter being provided with central curved grooves forming extensions of the openings to accommodate the head of the nail or spike and the said outer claw being arranged to cooperate with. the inner claw and bear against an intermediate portion of the nail or spike while the same is being operated on by the inner claw during the llllfll stages of extraction of said nail or spike to increase the ease of extraction.

3. A nail and spike extractor comprising a shank consisting of a bar having its outer end curved forwardly and presenting an outer curved end face forming-a single rolling con vex fulcrum, a relatively short outer claw forming a prolongation of the curved end of the shank and having an outer face merging into the curved face of the rolling fulcrum,

and an inner relatively long claw extending from the curved end of the shank, said inner and outer claws having similar claw openings and both cooperating with the said single fulcrum to successively operate'on a nail or spike.

In testimony whereof wehavehereunto set our hands.

FRED SWOYER. THOMAS J. BRYANT;

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