US1763828A - Grip - Google Patents

Description

June v17, '1930. J, B. STEWART 1,783,828

. GRIP Filed April 15. 1929 Patentecl June 17, 1930 UNITEDV STATES JAMES BARDLEY STEWAR'I', OF LOS ANGELES, CALIFORNIA GRIP Application led April 15,

This invention aims to provide a simple means whereby a mechanic can grip or hold an object while it is being worked upon, oi' for any other purpose, a secure but readilyreleasable hold being afforded.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that kind to which the present invention appertains.

A preferred from of the invention has been shown, but a mechanic, working within the scope of what is claimed, may make such changes as his skill may dictate, without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows, in side elevation, a grip constructed in accordance with the invention, parts being broken away;

Figure 2 is a top plan wherein parts broken away; i

Figure 3 is a cross-section on the line 3-3 of Figure 1.

The grip forming the subject matter of this application preferably is made of metal throughout, and includes a body1 1, in the form of a bar. At its forward end, the body 1 has a fixed jaw 2. Ears 8 project from' the body 1 and are countersunk into the sides of a movable jaw 4. The jaws 4 and 2 have cooperating teeth 5; they are provided, also, with longitudinal grooves 6, and in general the jaws may be constructed asl desired, so as to hold the work upon which they are to operate.

A pivot element 7 is mounted in the ears 3, the movable jaw 4 being fulcrumed intermediate its ends on the pivot element 7. The forward end of a link 8 and the rear end of the movable jaw 4 are halved together, as shown at 9, so that the link 8 canget a good thrust against the jaw 4, thereby to operate the said jaw. The forward end of the link 8 is connected to the rear end of the jaw 4 by a pivot element 10.

The numeral 11 designates a rider in the form of a block, slidable longitudinally of the body 1. The forward end of the rider 11 and the rear end of the link 8 are halved together at 12, so that the rider 11 can exercise a strong thrust upon the llink 8. A pivot 1929. Serial No. 355,216.

element 14 connects the forward end of the rider 11 with the rear end of the link 8.

There are spaced bearings 15 on the body 1 near the rear end of the body, and in these bearings, an Operating member 22, 4in the form of a shaft, is monnted to turn. Abutlnents 18 on the Operating member 22 engage the bearings 15 and keep the operating member 22 from moving lengthwise when it is rotating. The forward end of the Operating member or shaft 22 is threaded 'at 16 into a recess 17 formed in the rear end of the rider 11. On the back end of the Operating` member 22 there is a turning head 19 which is slotted ,transversely as at 20, to receive any kind of a handle (not shown) whereby the Operating member 22 may be rotated. In practioal operation, the member 22 is rotated by means of the turning head 19, and the rider 11 is advanced, because the operating member is threaded at 16 into the recess 17 of the rider. The rider 11 cxerts a thrust against the link 8, the link 8 eXerts a thrust against the jaw 4, and the jaw 4 is shoved toward the fixed jaw 2, thereby to cause the jaws to grip and hold any object which Vmay be between them.

The tool may include a combined guide and wear plate interposed between the rider 11 and the body 1 and prolonged lengthwise of the body l. The plate 23 is provided along one edge with a fiange 26 which overlaps one side of the body 1 and aids in holding the plate 23 in place. Upon its opposite edge the plate 23 has a fiange 27 which projects in an opposite direction to that in which the fiange 26 eXtends, this construction being shown clearly in Figure 3. Referrinfl' to Figure 1, it can be seen that the flange 2? overlaps the rider 11 and the rear end of the link 8, thereb-y to keep the rider 11 and the link 8 in alignment, a smooth working of the rider 11 being thereby assured, the rider being prevented from binding on the threaded end 16 o`f the Operating member 22, some strain being taken off the pivot element 14. In order to hold the plate 23 against movement lengthwise of the body 1, the plate is provided at its ends with rectangular lips 24, received in correspondingly shaped seats 25 in the body 1.

The turning head 19 is slotted in two angalarly disposed directions, as shown a-t 20, to form horns or projections, between which a bar or the like may be placed readily, to secure a. rotation of the tnrning head. In this respect, the tool is far snperior to similar tools in which the turning` head is slotted or constrncted otherwise to receive the turning bar. The construction of the j aws 2 and Ll, at 5 and 6, is such that stove bolts, screws, and other objects of a like kind, may be held readily for rotation.

I claim:

1. A grip including a body having a. fixed jaw, a lnovable jaw pivoted to the body and cooperating with the fixed jaw, a rider slidable longitndinally of the body, a link pivoted to the forward end of the rider and to the rear end of the movable jaw, an operating member threaded into the rear end of the rider, means for holding the Operating member on the body for rotation and against longitndinal movement, and a combined guide and wear plate interposed between the rider and the body, the wear plate being` provided with oppositely extended fianges, one flange engaging one side of the rider and the link, and the other flange engaging the opposite side of the body, and means for holding the plate against movement lengthwise of the body.

2. A grip inclmling a body having a fixed jaw, a movable jaw pivoted to the body and cooperating with the fixed jaw, a rider slidable longjtndinally of the body, a` link pivoted to the forward end of the rider and to the real' end of the movable jaw, an Operating member threaded into the rear end of the rider, means for holding the Operating 1neinher on the body for rotation and against longitudinal lnovement, and a combined guide and wear plate interposed between the rider and the body, the wear plate being` provided with oppositely extended flanges, one fiange engaging one side of the rider and the link, the other fiange engag'ing the opposite side of the body, the plate being provided With lips which. extend transversely of the body, the body having seats in which the lips are received.

In testimony that I elaim the foregoing as my own, I have hereto affixed my signature.

JAMES BARDLEY STEVVART.

Images