US620650A - Arsene hebert - Google Patents

Description

N0. 620,559. Paented Mar. 7, |899.

. HEBERT.

LASTING HAMMER.

(Application led Dec. 3, 1897.)

(No Model.)

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UNITED STATES PATENT OEEICE.

ARSENE HEBERT, OF MANCHESTER, NEW HAMPSHIRE, ASSIGNOR TO GEORGE J. P. FRECHETTE, OF SAME PLACE.

LASTING-HAMM ER.

SPECIFICATION forming part of Letters Patent No. 620,650, dated March 7, 1899. I Application led December 3,1897. Serial No. 660,5 94. (No model.)

To all whom, t may concern:

Be it known that I, ARSENE HEBERT, a citizen of Great Britain, residing at Manchester, in the county of Hillsborough and State of New Hampshire, have invented certain new and useful Improvements in Lasting-Hammers; 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 theart to which it appertains to make and use the same.

This invention relates to that class of pliers which are used by shoe-lasters and which contain a magazine or reservoir for tacks, the object being to render it unnecessaryvfor the operator to carry tacks in his mouth and to combine with the tool a mechanism which carries the tacks into the hammer, whereby they are driven into the work one at a time whenever the operator brings the hammer down as in the act of driving a tack. This I accomplish by making the hammer movable away from and toward the pliers, the first movement causing a tack to drop into said hammer 'and the second to drive the same where desired, as fully set forth in the following specification and claims and clearly illustrated in the accompanying drawings, forming a part of the same, of which- Figure l is an elevation of my improved pliers, Fig. 2 being a plan View of the same'. Fig. 3 is a longitudinal section of that portion ot' my improved pliers carrying the movable hammer, the tack-magazine, the raceway, and my improved devices for depositing the tacks at the bottom of the hammer and sticking the same into the work. Fig. 4 is a cross-section of the tack-magazine and that portion of the pliers to which it is attached. Fig. 5 is a broken elevation showing my improved hammer and a portion of the projection to which it is attached. Fig. 6 is a broken plan showing a portion of the pliers with the raceway, the magazine in section, and a sliding stopplate for letting the tacks one at a time into the hammer.

Similar reference-letters denote like parts throughout. the various views.

The pliers are of novel construction, A being the stationary member, having a jaw a, and B the movable member, to be grasped by the hand of an operator. A movable jaw ZJ is pivoted to the stationary member forward of its jaw, and the parts B b are connected, respectively, at b b2 by a bar C.

A tack-magazine is secured to the part A forward of the jaws rt b and consists of a shell D, having an opening at its top, as at d, and provided with a swiveled cover d'.

IVithin the magazine D is a tack-raceway 6o consisting of a pair of plates E, placed vertically side by side, with sufiicient space between them to receive the tacks, the heads of which rest upon the curved top of said plates, and iiaring extensions e e are formed upon the upper edge of and at one end of said plates, each of said extensions reaching to the adjacent side of the magazine D for a portion of its length, as shown best in Figs. 3 and 4. The movement of the pliers up and down in 7o the hand of an operator throws the tacks upon said extensions and deposits them in the raceway, whence they pass down and into an opening ct in the part A for delivery to the hammer. A groove a2 is formed in the part A, 75 terminating in said openingct', and the plates E are secu red at opposite sides of said groove by screws passing through their flanges e' e', as shown. The opening or tack-passage ct is formed in a cylindrical projection a3, pro- 8o vided with an annular recess a4 andaplunger a5. The recess a4 contains a helical spring F, and the movable hammer G has an internal annular shell g, which enters said recess d4 and bears against the spring F, as in Fig. 3, and said hammer is allowed a limited movement upon said projection co3 by means of a screw H, passing through an elongated open ing g and threaded to said projection as.

The central opening in the hammer Gis re- 9o duced at its bottom to about the size of the head of a tack, the plunger a5 being of proper size to pass into the reduced opening g2 of the .hammer,when the latter is causedto rise upon theprojection a3 and drive a tack. In order 95 to deliver one tack only to said hammer at each movement of the same, I provide a suitable stop device at the top and bottom, that at the top consisting of a sliding plate I, titting a recess in the part A and held normally, roo as shown in Fig. 6, by means of the spring J and adapted to be moved against the pressurev of said spring by a suitable rocker K, pivotally attached to the part A, as in Figs. l and 2, and actuated by the upward movement of the hammer G, which throws the lower end of the rocker K out and moves the plate I so that its slot c' will register with the raceway E to receive a tack; the downward movement of the hammer permitting the plate I to again assume Vthe position shown in Fig. 6.

The stop at the lower end ot' the hammer consists of a slide L, having its inner end beveled on top, as at Z, andv held so as to normally cover the reduced portionof the tackoutlet in the hammer by a suitable spring M, and when a tack X is let in at the top it drops down against this slide and under the plunger a5, as in Fig. 3, the upward movement of the hammer upon the projection a3 bringing the plunger a5 in contact with the tack X and the beveled portion Z of said slide L, moving the latter out of the way while the tack is driven into the work.

A curved plate N is placed over the raceway E to prevent the tacks from jumping out and servin g to hold the stop I in proper place and is secured in position by screws n.

It is also desirable to prevent tacks which have passed down the raceway from again re-A turning to the magazine D, and this I accolnplish by means of a little rocker or bell-crank '11','as shown in Fig. l.

The movable hammer G is held in its elevated position by a suitable spring-actuated lever O, provided with a projection o, which engages the under edge of a flange formed at the top of said hammer, said lever being pivotally attached at p to the part A, and asuitable sprin g P holds the lever in contact with the hammer when elevated, the lower end of the lever being adapted to be released from the iiange of said hammer by a `tinger of an operator.

Having described my improvements, what I claim isl. The combination with a handle and relatively-fixed member, of a hollow cylindrical projection extending from the member, a spring-actuated hollow hammer telescoping upon the projection, means for delivering tacks to the hammer, and mechanism for automatically retaining the hammer in its elevated position against the resistance of its spring, substantially as specified.

2. The combination with a handle and relatively-fixed member, of a hollow cylindrical projection extending from the member, a magazine carried by the member, means for conveying tacks from the magazine to the interior of the projection, a hollow hammer telescoping with the cylindrical projection and spring-actuated in one direction, a tack-retaining stop at the lower end of the hollow hammer, a sliding plate located intermediate of the member and magazine and designed to regulate the feed of the tacks, arocker operatively connected with said plate and designed to be actuated by the movable hammer, and a spring-actuated latch-lever designed to engage the hammer and to retain it in its elevated position, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

ARSENE HEBERT.

IVitnesses:

J. B. THURsToN, A. E. BoIsvERT.

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