US652002A - Nail-extractor. - Google Patents

Description

D. A. KINCAlD.

NA'IL EXTBAGTOB.

(Application filed Oct. 18, 1899.)

No.652,0&2. Patented. lune l9, I900.

(No mdl.)

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: 2 UNITED STATES- PATENT OFFICE;

DAVID ASHBY KINOAID, OF SOUTH PORTLAND, MAINE.

NAlL-EXTRACTOR.

SPECIFICATION forming part of Letters Patent No. 652,002, dated June 19, 1900.

Application filed October 13, 1899. Serial No. 733,496. (No model.)

To all whom it may concern:

Be it known that I,'DAvI D ASHBY KINCAID, a citizen of the United States, residingat No. 49 Sawyer street,South Portland,iu the county of Cumberland and State of Maine, have invented a new and useful Nail-Extractor, of which the following is a specification.

The invention relates to improvements in nail-extractors.

The object of the present invention is .to improve the construction of nail-extractors and to provide a simple, inexpensive, and efficient device of great strength and durability adapted to engage under the head of a nail and capable of readily extracting the same without bending the nail at the point of enout in the claims hereto appended.

tion of a nail-extractor constructed'in ac gagement therewith.

The invention consists in the construction and novel combination and arrangement of parts, hereinafter fully described, illustrated in the accompanying drawings, and pointed In the drawings, Figure 1 is a side elevacordance with this invention, the jaws being in their lowermost position. Fig. 2 is a similar view, the jaws being raised. Fig. 3 is a longitudinal sectional View, the parts being arranged as illustrated in Fig. 1. 7

Like numerals of reference designate corresponding partsin all the figures of the draw lngs. i y

1 designatesahandle, consisting of a shank or bar, having astraight outer portion 2, and slightly curved at the inner'end thereof to raise or offset the inner or grip end of the handle from the plane of the bottom of the straight portion 2. The outer straight portion 2 is provided with a tapering recess or cavity 3, having fiat side walls and curved end walls 4:, extending upward from a bottom opening 5 and terminating short of the top or upper face of the handle, which is provided with a contracted top slot or opening 6. Within the cavity 3 is arranged a pair of similar jaws 7, composed of lower engaging portions and provided with approximately straight shanks 8,having straight inner edges,

as clearly illustrated in Fig. 3 of the accom panying drawings. Theengaging portions of the jaws extend beyond theinner or lower terminals of the shanks 8 to provide shoulthereof and at the same time permit the nail to have a limited movement, whereby when the same is extracted there will be noliability of bending the nail at the head. It has been found by experience that where nails are bent sharply at the head they are practically destroyed,as it is almost impossible to straighten them without breaking off the head, but by constructing the jaws as before described this is obviated. The jaws are provided at the lower ends of the shanks 8 with downwardlyconverging edges 12, formed by recesses or notches and cooperating to form a tapering or approximately-triangular opening for the reception of a transverse fastening device 13, consisting of a screw or pin and adapted to be readily removed to permit the jaws to be taken out and replaced. The transverse fastening device limits'the longitudinal movement in one direction and prevents them from dropping too far, and at the same time it causes them to open as they are moved upward with rplation to the handle 1. The jaws have a limited longitudinal and lateral movement and they do not extend a material distance beyond the handle,'which is provided with a curved or segmental recess at the bottom opening 5 toenable the jawsto readily enmove inward to clamp the nail, the inclination of the curved side walls causing such inward movement, and the space between the side walls is sufficient to permit the jaws to move downward a limited distance before they are forced inward, whereby they are caused to clear the head of the nail. The i outer end of the handle or bar forms a ful crum, and the nail is extracted by raising the inner or grip end of the handle or bar. 1 Asthe jaws move upward they describe'a part of a circle; but the forks or bifurcations and the cut-away portions above theipoints perk mit the nail to have a limited movement, independent of the jaws, whereby the'nail is permitted. to'assume or remain practically in a perpendicularposition in withdrawingpso that it will not be injured by such operation.

In order to assist or facilitate a straightwithdrawal'of the nail, the jaws are permitted a limited oscillation or rotary movement, the screw serving as a pivot and the slot '6 being sufficiently large to permit thenecessary lateralniovement of the shanks 8( The rounding ofthe outer edges of the engaging portions of the-jaws and the concave end walls 4 enable the said jaws to have such a move-- ment, which would'be impossible were the straight. A

jaws strictly wedge-shaped and the side walls .It will be seen that the device is exceedingly simple and inexpensive in constru ction, as it consists only of a handle or bar, the separate jaws, and thetransverse fasteningodevice, that the jaws are not liable to break', andthat in ;event of one of them bec'omingf broken or otherwise injured it may be readily replaced by a new part by simply removing the transverse fastening device.

Changes in the form, proportion, size and i 1 v the minor details of construction within the scope of the appended claims maybe-resorted to without departing fr om the spirit or sacrificinganyofthe advantages of thisin'vention'.-

' i What is claimed is V 1.- A device of the class described .e otip'ri s inga handlehaving a socket,'a pair of -sepa-.

A rate independent; jawsa-rranged within the I socket, anda centralifa'stening device (inter-f as described).-

' independently 1ofj/the handle, substantially posed between the jaws and arrangedto open the SamGWhEDftII-Q jawsa're moved n'pwardj.

"f 2. A devicejof' the 'classdesc'ribed coin rig-i] inga handle havingja socket, a'pairof I r V man e-a within-the socket and]v bemme ag rate and independent and provided iflabove g their engagin porti'o'nsfwith recesses, nd

p ranged to bearjlagainst' each other at Lathe-top,

and bottornof the recesses; at; points above their engaging-lower ends, and afas-tening I deviceinterposedi;between thejaws andar rangedin the-said recesses,substantiallyj'as described.

I 3., '-A devicejof the class described cdmprise 6o in g a-handle. having a cavity,-and al pairof news I describedf.

the presence. ofrtwo witnesses separate or independent aws arranged within the cavity and capable of rocking independ 'ently of the handle and of remaining in alinement with the nail to be extracted, whereby the latter, is prevented from being bent, substantially as described.

4. A device of theclass described comprisinga handle liavinga cavity, a pair ofindependent jaws arranged'within the cavity and having projecting and engaging-portions, said jaws being provided withoppositerecesses having edges converging toward the engaging'portions of the jaws, and a transverse fas= tening'device extending through the said re cesses and arranged to be engaged by the said converging edges, whereby the jaws are caused to open or separate, substantially as and for the purpose described.-

5. A device ofthe class described comprising a handle having a cavity extending through it with downwardly converging walls, a pairof independent jaws' arranged within the cavity and projecting above and below the handle and havingrounded bot-- tom portions, said jaws being also provided attheir inner edges with recesses having converging walls, and a transversefastening device interposedbetween the jaws andfarranged to be engagedby the converging edges thereof, whereby the jawsare open when they are moved upward. independentlyof the d-le,'substantially as described. it

6. A device of the'class'described comprising' a handleflhaving a cavity, a pair ofindependent jaws composed of lower engaging portions, and upper: shanks projecting above vthe handle, said jaws beingprovided at their ,inner edges with recesses formed withdownwardly-converging edges, and'a' transverse fastening device arranged within'the said recessesin position to .be engaged by the converging edges, substantially asdescribed. 7; A devicexof the class described compris 1n g a handle havingaocavity, a pair of inde pendentjawsarranged within the cavity, and a centralfasteningdevice interposed between 1 the: jaws and forming a pivot :orfulcrumfor tnesame, whereby the latte-rare adapted to rock orp'artial'ly rotate. independently fof the handle'a'nd, remainginalineme'nt witli'the nail oav'oid twistingfthe latter, nbstantially as lnftestimonythatllclann the foregoing as my own, rhave. I

- Witnesses:

han-

eretojaifixed my signature in iro-

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