US2318193A

US2318193A - Pick

Info

Publication number: US2318193A
Application number: US413552A
Authority: US
Inventors: Branham Martin
Original assignee: Individual
Current assignee: Individual
Priority date: 1941-10-03
Filing date: 1941-10-03
Publication date: 1943-05-04
Anticipated expiration: 1960-05-04

Description

M. BRANI-IAM 2,318,193

PICK

Filed OC'C- 3. 1941 FE- C? v l l T; E

2/ il!! l l l', *51

-I BY` `4 Patented May 4, 1943 sare T FFICE 1 Claim.

This invention relates generally to digging implements and more particularly to an improved pick.

One object of the invention is to provide a pick wherein means is .employed for eiectively retaining the handle in hrm engagement with the head so that danger of slipping of the head from the handle will be prevented.

Another object of the invention is to provide a pick, the construction of which, in all of its embodiments thereof, is characterized by extreme simplicity and utility.

A further object of the invention is to provide a pick wherein, in certain embodiments, barbs or prongs are employed for engaging the end of the handle within the head of the pick for retaining said handle in place.

Still further objects of the invention, not specifically mentioned in the foregoing, will become apparent during the course of the following description.

In the drawing forming a part of my application:

Figure 1 is a vertical sectional view, partly in elevation, showing one embodiment of my invention,

Figure 2 is a vertical sectional view on the line 2 2 of Figure 1 looking in the direction indicated by the arrows,

Figure 3 is a detail vertical sectional view, f

partly in elevation, showing the handle as it would appear with its enlarged end portion in operative position in the head of the pick and in engagement with the prongs in said head,

Figure 4 is a detail longitudinal. sectional View I on the line of Figure 3,

Figure 5 is a detail longitudinal sectional view on the line 5--5 of Figure 3,

Figure 6 is a detail side elevation showing a slightly modied embodiment of the invention,

Figure 7 is a detail top plan view, on an enlarged scale, of the modication shown in Figure 6.

Referring new more particularly to the drawing, attention is rst directed to Figures 1 through 5, wherein a preferred embodiment of the invention is illustrated.

The numeral I indicates in general the head of the pick of this embodiment of the invention. The head I includes pick members 2 which carry points 3 at their free ends. The head I also includes a socket or ferrule @I formed with an integral depending downwardly tapered skirt 5, said skirt being again tapered near its lower end. The socket or ferrule 1I, as best seen in Figures 4 and 5,

includes straight side walls 6 and 'I and curved end walls 8 and 9. Formed on the side walls 6 and 1 near their corresponding upper ends are pairs of inwardly presented anchoring prongs I0 and II, one of said prongs of each pair being* located near the end of the side wall on which it is mounted. As will be seen in Figure 2, the pairs of prongs are disposed in opposed relation. Formed on the end walls 8 and 9 substantially medially of the thickness of the members 2 and disposed in a plane below the plane of the prongs I0 and II are oppositely disposed anchoring prongs I2 and I3.

Normally associated with the head I of the pick is a handle I4 which handle is formed at its upper end with an enlarged outwardly tapered head or end portion I5. As will be understood, the body of the handle I4 is of a diameter small enough to permit its being projected through the reduced lower end of the ferrule or socket. That is to say, when the handle is to be connected with the head, the lower end portion of said handle is projected downwardly through the socket 4 and the enlarged portion I5 is, as best seen in Figures 1 and 3, engaged in the socket 4. The portion I5 is driven downwardly into the head so that the prongs I2 and I3 and the prongs of the pairs of prongs III and II will engage in the portion I5 and will rmly anchor the handle in operative position in the head. Attention is partieularly directed to the fact that the tapered portion l I5 will engage the interiorly tapered skirt 5 of the socket I so that, even though the prongs should become disengaged from the said portion I5, the head will be prevented from flying oi the handle. Danger of injury to a person near the workman using the pick will thus be avoided. As seen in Figure 5, the walls dening the sides of the socket are offset outwardly.

A pick constructed in accordance with this embodiment of the invention may be manufactured cheaply and in large quantities. In this connection, it should be understood that the prongs will be formed during casting of the head I.

In Figures 6 and 7 ofthe drawing I have Shown another embodiment of the invention. In

these views the numeral I6 indicates the head of the pick and the numeral I I the point thereof. The head I5 includes a socket having a depending skirt I8 which socket, as best seen in Figure '7, includes side walls I9 and 2l! and V-shaped end walls 2| and 22. Prongs 23, as shown in dotted lines, are engageable with the upper end portion of the handle 24. The skirt I8 is formed with a slot 25 to lend a certain amount of frictional engagement, for permitting rm contact with the upper end portion of the handle, and to provide means for permitting the insertion of fastening devices, if desired. As best seen in Figure 7, the upper end portion of the handle 24, which is shown at 26, is so shaped that it will t snugly in the socket in engagement with the prongs.

It is pointed out that, in this embodiment of the invention, the provision of the V-shaped end walls 2l and 22 cooperate with the prongs 23 assuring eiective anchoring of the handle in the head.

Having thus described the inventiom what is' claimed as new is:

A tool of the class described comprising a handle having an enlarged downwardly tapered upper portion, a head having a correspondingly tapered handle receiving socket and provided with an integral downwardly tapered depending skirt, entirely surrounding the adjacent enlarged portion of the handle beneath said head, the opposite side walls of the socket being provided with pairs of inwardly extending integral prongs and the opposite end walls thereof with prongs arranged at substantially right angles to the pairs of prongs and disposed in a plane below the plane of said pairs of prongs, said prongs engaging the enlarged portion of the handle for locking the head on the handle, the enlarged portion of the handle cooperating with the tapered wall of the socket for providing an additional means for preventing outward displacement of the head from the handle.

MARTIN BRANHAM.