US718845A - Pick. - Google Patents

Description

UNlTFD Sterne ATENT ()FFICE.

WILLIAM S. JENKINS, OF KEB, IOWA.

PICK.

SPECIFICATION forming part of Letters Patent No. 718,845, dated January 20, 1903. Application filed September 22, 1902. SerialNo. 124=,896. (No model.)

To all, whom, it may concern.-

Be it known that I, WILLIAM S. JENKINS, a citizen of the United States, residing at Keb, in the county of .Vapello and State of Iowa, have invented a new and useful Pick, of which the following is a specification.

This invention relates to picks, more particularly those employed by miners and similar operatives, and has for its object the production of an implement possessingthe maximum of strength with the minimum of weight and cost,and wherein a new orsharpened head or pick member maybe attached to the handle-socket in place of the worn-out member; and the invention consists in certain novel features of construction, as hereinafter shown and described, and specified in the claims.

In the drawings illustrative of the invention, Figure 1 is a perspective View of the improved implement. Fig. 2 is a sectional side elevation of the socket and a portion of the head or pick member. Fig. 3 is a hori- Zontal section through the head and socket members. 1 Fig. at is a transverse section through the socket member.

The implement consists in the head member of the usual construction, pointed at both ends and of the ordinary size. In the improved device the head member 10 is provided with depending side wings 11 12, spaced apart and having their side edges beveled, as shown in Fig. 4, and with their extremities likewise beveled, as indicated in Fig. 3.

The handle is represented at 13, connected to the handle-socket 14, the latter having longitudinal recesses 16, adapted to receive the wings 11 12, the edges of the recesses being beveled to correspond to the beveled edges of the wings, so that when the wings are inserted into the recesses they will form a dovetail joint and be firmly held therein from lateral movement and all the lateral strains borne between the wings and the socket member. A transverse bolt 17 will be inserted through the wings 11 12 and the body of the socket member 14 to prevent longitudinal movement between the parts, but which will be protected from lateral strains by the inclined or dovetailed joints between the socket and head members, as will be obvious. By this simple arrangement, it will be noted, all the severe strains, both when striking blows with the pick and When employing it as a lever or pry, will be borne almost entirely between the wings 12 and the socket member 14 and the bolt 17 relieved from strains. Hence a comparatively small bolt may be employed, and consequently a small hole only in the socket member and the wings is required, thereby producing stronger parts. As an additional support between the parts, the socket memberla will be provided with studs 18 19, projecting into corresponding cavities in the head member 10, these studs and cavities being preferably located between the side wings 11 12. These studs 18 19 are an important feature of the invention and add materially to the strength of the joint between the parts without adding to the weight or expense.

The head member 10 and the side Wings 11 2 will be forged in one single piece and will be of ample strength and size to resist the strains to which they will be subjected, While the. socket member 14 likewise consists of a single piece of metal with the handle member 13 firmly inserted into the socket (indicated at 20) in its outer extremity. By this simple means a very efficient, strong, and durable pick is provided, adapted to efiectually resist the severe strains to which such implements are subjected and whose parts may be easily disconnected for the renewal or repair of the pick.

A plurality of the head members 10 may be furnished with each socket member, so that when one pick member becomes dulled it may be readily removed and a sharpened one substituted, the only labor required to make the change being the removal of the bolt 17, the withdrawal of one head member, the substitution of the other, and the return of the bolt, which action maybe accomplished very quickly.

The doubly-inclined sides and ends of the side wings 11 12 is a very important feature of the invention, as it firmly locks the head member to the socket member independently of the holding-bolt and distributes the strains over a much larger area of the parts, thereby greatly increasing the strength and efficiency of the joint.

In using implements of this character the strains are very severe in all directions between the head member and the socket member. Hence the importance of any joint or means of connection whereby these strains are uniformly distributed and the device so constructedas to efficiently resist them, while at the same time providing an implement which may be readily disconnected when a new head is to be inserted. The-present improved device very effectually meets all these requirements and provides a very simple and easily-operated implement.

The parts may be constructed of any required size and in suitable relative proportions and may be modified in minor particulars without departing from the principle of the invention or sacrificing any of its advantages.

Having thus described the invention, what is claimed is v 1. A pick consisting-of a head member having pointed ends and with intermediate projecting spaced wings provided with inclined edges, and a handle-socket having longitudinal recesses with undercut sides adapted to receive the inclined edges of said wings, and a tie-bolt connecting said Wings and socket member, substantially as described.

2. A'pick consisting of a head member having pointed ends and with intermediate projecting wings having inclined edges and ends, and a handle-socket member having longitudinal recesses with undercut sides and ends adapted to receive the inclined edges and ends of said wings, and a tie-bolt connecting said wings and socket member, substantially as described.

3. A pick consisting of a head member having pointed ends and with intermediate pro- 7 jecting wings having inclined edges and with apertures between said wings, and a handlesocket member having longitudinal recesses with undercut sides adapted to receive the inclined edges of said wings, and with pins engaging said apertures, and a transverse tiebolt connecting said wings and socket, substantially as described.

4. A pick consisting of a head member having pointed ends and with intermediate projecting wings integral therewith and spaced apart and disposed in horizontal alinement with said head and provided with reverselyinclined edges, and a handle-socket member having longitudinal recesses adapted to receive said wings and with undercut sides adapted to receive said reversely-inclined edges, and means for transversely connecting I said wings and socket member, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

WVILLIAM S. JENKINS.

Witnesses:

JAMES NEvIN, THOMAS PRICE.

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