US331678A - Nail-extractor - Google Patents

Description

(N0 Mode'Lf T. M. BRINTNALL.

' NAIL EXTRAGTOR.

WITNESSES ATTORNEYS.

N. PETEIRS. Pmm-Liuw n ner. Wnhinginn. ac

UNITE STATES PATENT tries.

THOMAS M. BRINTNALL, OF MARYVILLE, ASSIGNOR TO HIMSELF AND ROBERT U. HENDRICK, OF ST. JOSEPH, MISSOURI.

NAIL-EXTRACTOR.

SPECIFICATION forming part of Letters Patent No. 331,678, dated December 1, 1885.

Application filed June 12, 1885. Serial No. 168,552. (No model) and useful Improvements in Nail-Extractors,

of which the following is a description.

This invention is an improvement in nailextractors; and it consists in certain novel constructions, combinations, and arrangements of parts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a perspective view of my device, ready for use. Fig. 2 is a perspective view representing the several parts in detail, and Fig. 3 shows a modified con-' struction, all of which will be described.

The base-piece A is provided at one end with a handle, A, preferably elevated above the body of such base-piece in order to hold the hand of the user clear of the box or board during operation. The other end of the basepiece may be slotted at a, forming arms a, the extremities a of which are bent downward forming binding-prongs. This construction is preferred because by it the base-piece may be placed accurately alongside of the nail to be drawn, and the prongs will hold it from slipping in the operation of the lever-bar and swinging arm, except for which purpose the slot and prongs may be dispensed with.

The lever-arm B is pivotally connected with the base-piece by means of the intermediate arm, 0. This arm is pivoted at one end to the base-piece A. In order to guide and steady the movement of the swinging arm, I provide parallel plates 0 G on the base-piece and pivot the arm 0 between them. The outer end of the arm G is slotted at 0 forming arms 0 between the extremities of which is pivoted the anti-friction roller 0*. It will be seen that the arms are bent between their ends with their outer extremities elevated, the point of bending forming one ffulcrunrpoint and the roller the other, they being brought successively into operation in the use of the device. These arms form an extension which serves as a bearing in the leverage employed in extracting the nail. At the base of the slot In the construction shown in Fig. 3 the ful- I crnnrextension beyond the jaws is formed on the lever B and is bent to provide the double bearing-points instead of providing a roller as in Fig. 2. I prefer, however, the construction shown in Figs. 1 and 2. The lever B is slotted at B in its lower end, forming arms B" B which project down on opposite sides of the arm 0 and are pivoted thereto, as shown. This pivoted end of lever Bsupports ajaw, E, which projects through the slot 0 and has its point arranged in position to engage-on the opposite side of the nail from the jaw D and act in opposition to said jaw in drawing the nail. It is preferred to secure this jaw E in a narrow slot, 1), extended from the base of slot B, as clearly shown.

By the described construction the pivot of parts B and C may be effected in a simple manner, the jaw E may be easily secured, and such jaw will be braced by the arms 0 of part 0 against lateral strain so that a slighter jaw can be used than would be otherwisepossible.

In operation the swinging arm and the lever are raised after the baseplate has been properly adjusted and then forced down in contact with the nail. By means of the double-fulcrumed bearing-extension a short leverage is provided by which to start the nail, and then along leverage by which it may be rapidly drawn.

By means of the anti-friction roller it will be seen the fulcrum may be caused to approach the nail and the latter be drawn without bending so it may be conveniently reused.

jaws in a direction opposite that of thepivoted end of the arm, substantially as set forth.

2. A nail-extractor consisting of a base having a handle at one end, an arm pivoted at one end to said base and provided'with ajaw, a lever pivoted to the arm and having a jaw arranged and adapted to act in, opposition to the jaw of said arm, and a bearing-extension, substantially as set forth.

3. The combination of a base-piece, an arm pivoted at one end to the base, a roller journaled to the opposite end of the arm, a jaw depending from the arm between the roller and its pivot, and a lever pivoted to the arm close to the jaw thereof and having a jaw arranged and adapted to actin opposition to the jaw of the arm, substantially as set forth.

4. The nail-extractor herein described, consisting of the base having its end slotted forming arms, the extremities of which are bent downward forming binding-prongs, the arm pivoted at one end to the base and provided near its other or outer end with a depending jaw arranged to operate through the slot of the base-plate, and the lever pivoted to the said arm and havinga jaw adapted to operate in opposition with the jaw on the arm, substantially as set forth.

5, The combination, in a nail-extractor, of a base having a handle at one end and having its opposite end adapted to serve as a guide in placing the device for use, an arm pivoted to said base and having a jaw, and a lever pivoted to said arm and having a jaw adapted to operate in opposition to that of said arm, substantially as set forth.

'6. The combination, with the base-piece and the swinging arm pivoted at one end to the base and provided with a depending jaw, of the lever pivoted to the arm and having a jaw ar-.

ranged to act in opposition to the jaw of the arm, a bearing-extension projected beyond said jaws on the side thereof opposite the pivoted end of the arm, and a roller journaled at approximately the extremity of said extension, substantially as set forth.

7. In a nail-extractor, the combination,with the swinging arm having a'jaw, D, anda slot, 0 of the lever having its lower end slotted forming arms fitting on opposite sides of and pivoted to the swinging arm, and the jaw E, secured to the lever and projected through the slot of the swinging arm, substantially as set 'forth.

or free end of the arm being extended in advance of the jaws forming a bearing-extension, substantially as set forth.

THOMAS M. BRINTNALL.

\Nitnesses:

JOHN A. MURPHY, Jr., EDUARD JAEGER.

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