US941254A - Lasting-pincers. - Google Patents

Description

W. HUGK. LASTIN G PIN GEES. APPLIOATIOH FILED JULY 17, 190B.

Patented Nov. 23, 1909.

UNITED STATES PATENT OFFICE.

WALDO HUCK, OF CAUTI-IRON, ARKANSAS, ASSIGNOR OF ONE-THIRD T0 ALFRED W. I-IUQK AND ONE-THIRD TO CHET'I McDONALD, BOTH OF KANSAS CITY, MISSOURI.

LASTING-PINCERS.

To all whom it may concern:

Be it known that I, lVaLDo IIUoK, a citizen of the United States, residing at Cauthron, in the county of Scott and State of Arkansas, have invented certain new and useful Improvements in Lasting-Pincers; and I do 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, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to a lasting pincer, and has for its object to provide a device of that class which is simple and economical in both construction and use, and which com prises the improved details of structure presently fully described and pointed out in the following claims, reference being had to the accompanying drawings in which like reference numerals refer to like parts throughout the several views, and in which Figure I is a perspective view of a pair of lasting pincers constructed according to my invention, the jaws being separated for clearer illustration. Fig. II is a central longitudinal section of the pincer jaws. Fig. III is an enlarged perspective View of the lower pincer jaw with the tooth plate re moved. Fig. IV is a detail view of the toothed plates. Fig. V is a sectional view of the lower aw members, on the line VV, Fig. III.

Referring more in detail to the parts l designates the upper pincer lever, which with the exception of the jaw portion is substantially of the same construction as those in ordinary use, and to which the lower lever 2 is pivoted at 8. g

In the ordinary construction of the pincer, jaws are usually provided, near their free, curved ends, with teeth that are formed integral with the jaw body, and which are adapted for firmly gripping the edge of a piece of leather when forming same over a shoe last.

It is a well known fact that these teeth become worn after a limited use and when in that condition render the entire tool useless, for the reason that, should it be attempted to sharpen the teeth, the tempered surface of the metal is broken and the teeth, when Specification of Letters Patent.

Application filed July 17, 1908.

Patented Nov. 23, 1909. Serial No. 443,989.

reformed, are of such soft construction that they last but a short time and render it impractical to attempt to sharpen them after they have once become worn.

Instead therefore of forming the teeth on the body of the jaws, I provide the respective jaws with outwardly flaring longitudinal sockets 4t5, and independent outwardly flaring longitudinal plates (37 that are adapted to fit into such recesses and are provided with the inwardly converging series of teeth (37.

In order to form a firm bearing for the plates (37, I form such plates with the beveled edge flanges 8. I also provide the jaws with flanges 9 at their center portions, preferably by cutting the recess l5 there under at such points; the sides of the sockets being preferably plumb at the inner ends to allow the inner ends of the plates 67 to be lifted slightly when being removed, and the outer ends of the sockets being flared outwardly near the outer corners of the jaw to receive the fan shaped outer ends of the plates. The base of each recess 4-5 is curved as illustrated, to conform to the curve of the respective plates 6-7, and at its inner end is provided with a transverse groove 10 to receive the transverse inturned end lip 10 of such plate. The plates 6(' are also provided with perforations 11 near their inner ends through which the screws 12 may be extended to firmly secure the plates to the jaws.

I prefer to construct the jaw sockets and toothed plates, so that the teeth 67 are partly beneath the surface of the jaw upon which they are carried in order that the teeth may intermesh and permit the jaws to close snugly against each other.

The lowerjaw 5 is provided with a threaded socket 13 therethrough, into which the screw shank 14 of a fulcrum post 15 may eX- tend; said post being adapted to carry a nut 16 between its head and the base of the jaw by which the post may be adjusted toward or from the pincer body to suit dif ferent shapes and sizes of lasts. With the pincers constructed in the manner, the plates 6-7 may be slipped into the sockets from the outer ends of the jaws until the transverse inturned end lips 10 enter the transverse grooves 10 and the beveled edge flanges 8 on each plate project into the respective recesses formed in the flanges 9,

when each plate will fit sungly in its jaw socket; the jaw flanges formed by under cutting the recesses at the center tending to spring the plates into position, and the plates being permanently secured by the screws 12. \Vhen so arranged the tool may be used until the teeth become worn, when either or both of the plates may be removed and new ones substituted therefor; it requiring but'a short time to effect the change of plates, and such practically obviating the necessity for the purchase of an entire new tool.

The advanta es to be ained from the adjustable fulcrum post are clearly apparent as such is readily seen to be subject to quick adjustment and the combination to provide a more stable structure.

Having thus described my invention, what I claim as new therein and desire to secure by Letters Patent is Claims.

l. Alasting pincer comprising ajaw member provided with an outwardly flaring longitudinal plate socket having a fan shaped end, and an outwardly flaring longitudinal tooth plate having a fan shaped end and seated in the plate socket in said jaw member.

2. A lasting pincer comprising a jaw member having an outwardly flaring longitudinal plate socket and undercut flanges overhanging a portion of said plate socket, and av separate outwardly flaring longitudinal plate member seated in said plate socket and provided with a portion of its body inset beneath said undercut flanges.

8. Alasting pincer comprisinga jaw member having an outwardly flaring longitudinal plate socket having a fan shaped end, and the sides of which are concaved beneath a portion of the jaw body, and a sepaate outwardly flaring longitudinal plate member having a fan shaped end and seated in said plate socket and provided with flanges projecting into the concaved jaw portions, for the purpose set forth.

4. A lasting pincer comprising a aw member having an outwardly flaring longitudinal plate socket, and recessed flanges on said jaw member overhanging said plate socket at its longitudinal center, and .a separate outwardly flaring longitudinal plate mem-. ber seated in said plate socket and having beveled flanges projecting beneath the jaw flanges, substantially as and for the purpose set forth.

5. A lasting pincer comprising a jaw member having a plate socket provided with an end groove, and a separate plate member adapted to seat in said socket and provided with an end flange adapted for projection into said socket groove.

6. A lasting pincer comprising a pair of lever jaws, each provided with a plate socket having concaved sides recesses extending beneath a portion of the jaw member near the longitudinal center of said socket, and provided with an end groove, and a separate plate adapted to seat in said socket and having an end flange adapted for projection into said groove, the top of said plate being flush with the upper surface of said jaw and provided for a portion of its extent with upwardly projecting tooth members, substantially as and for the purpose set forth.

7. A lasting pincer comprising a j aw,ha-ving an outwardly flaring longitudinal socket and a transverse groove at its inner end and an outwardly flaring longitudinal tooth plate having an inturned lip at its inner end fitting in the transverse groove.

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

WVALDO HUOK.

Witnesses G. R. WAsHBURN,

G. M. OWEN.

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