US825151A - Vise. - Google Patents

Description

No. 825,151. PATENTED JULY 3, 1906.

J. P. MoLEAN. VISE.

APPLICATION FILED MAR. 3, 1906.

I 6 7- E- J6I 14 If A i llsi ii l lslmij BY how/"6a ATTORNEYS JAMES FRANCIS McLEAN, OF MONTREAL, CANADA.

VISE.

Specification of Letters Patent.

Patented July 3, 1906.

Application filed March 3,1906. Serial 1:10. 303,977.

To (tZZ 'IUII/O'H'I/ it nuty concern:

Be it known that I, JAMES FRANCIS MOLEAN, a subject of the King of Great Britain, and a resident of Montreal, in the Province of Quebee and Dominion of Canada, have invented new and Improved Vise, of which the following is a full, clear, and exact description.

My invention relates to improvements in vises, particularly vises of the quick-acting type, in which a pair of jaws are arranged to be freely and quickly closed onto an object, after which they are moved to closer engagement with said object by means of a screw or other mechanical device.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all thefigures.

Figure 1 is a sectional view of my improved vise, taken on the line 1 1 of Fig. 2. Fig. 2 is a plan view of the vise. Fig. 3 is a section taken on the line 3 3 of Fig. 2. Fig. 4 is a view similar to Fig. 3, but showing the parts in different position; and Fig. 5 is a sectional view similar to Fig. 1, but showing only a portion of my vise and in a slightly-modified form.

Referring to the drawings, the aws of my vise are indicated at 6 and 7, the aw 6 being preferably fixed to or forming a part of a work-bench or the like. Projecting from the gripping-face of the j aw 6 are apair of parallel rods 8. These rods are firmly fastened to the fixed aw, and their outer ends are attached to and braced by a cross-piece 9. The movable jaw 7 is mounted to slide on the rods 8. A feed-screw 10, passing through an opening in the jaw 7, is journaled near its outer end in the cross-piece 9 and at its inner end in a plate 1 1, countersunk in the grippingface of the jaw 6. The extreme inner end of the screw 10 projects into a recess in the fixed jaw and is formed with a head 12, which serves to prevent axial movement of the screw without hindering rotary movement thereof. At the outer end of the screw 10 a handle 13 is applied. The movable jaw 7 is formed with an extension 14, in which is a chamber adapted to receive a half-nut 15. The half-nut 15 is normally pressed into engagement with the screw by a spring 16, so that when the screw is turned the aw 7 will be fed toward or from the fixed jaw 6. Midway of the length of the half-nut 1.5 a recess is formed to receive a cam 17, mounted on the screw 10. Said screw is formed with a flattened face at one side, and said cam is formed with a corresponding flattened eye, so that when the screw is turned the cam will rotate with it, and yet the cam will be free to slide axially on the screw. The cam 17 is formed with a swell at one side, adapted to engage the half-nut 14 and lift it clear of the screw 16 when turned to the position inclicated in Fig. 4. In this manner the aw 7 is released from engagement with the screw 10 and may be moved to any desired position thereon, after which the screw may be turned sufficiently for the cam-swell to clear the half-nut, whereupon the half-nut will engage the screw, and then further rotary movement of the screw will tend to move the jaw 7 toward or from the jaw 6. In Fig. 5 a slight modification of this construction is shown. The jaw 7 is provided with a half-nut 18, which is recessed at each end to receive a pair of cams 19. The cams 19 are similar in form to the cam 16 and are mounted to slide upon and rotate with the shaft 10. The action of these cams is similar to that of the cam 16, their purpose being to raise the nut 18 clear of the screw 10, as shown in Fig.5, permitting the jaw 7 to bemoved by hand against the work that is to be gripped. Thereafter the screw may be turned to move the cam-swells of the earns 19 out of engagement with the half-nut 18, when the latter will be moved into engagement with the screw by action of the spring 15, and the jaw 7 may then be forced into closer engagement with the work byfurther turning the screw 10.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a vise, the combination of a relatively fixed jaw, a relatively movable jaw, a nut connected with said movable jaw, a rotatable screw adapted to engage said nut, and a cam mounted to rotate with said screw but free to slide axially thereon, said cam serving to move said nut out of engagement with said screw during a part of each rotation of said screw.

2. In a vise, the combination of a relatively fixed jaw, a relatively movable jaw, a nut connected with said movable jaw, a rotatable screw, a spring adapted to press said nut into engagement with said screw, said screw serving to move said movable aw toward and from said fixed jaw, and a cam mounted to rotate with said screw but free to slide axially thereon, said cam serving to move said nut out of engagement with said screw during a part of each rotation of said screw.

3. In a vise, the combination of a relatively fixed jaw, a plurality of rods extending from said fixed jaw, a relatively movable jaw mounted to slide on said rods toward and from said fixed jaw, a half-nut connected with said movable jaw, a rotatable screw, a spring adapted to press said half-nut into engagement with said screw, said screw serving to move said movable jaw toward and from said fixed aw, and a cam mounted to rotate with said screw but free to slide axially thereon, said cam serving to move said half-nut out of engagement with said screw during a part of each rotation of said screw.

4. In a vise, the combination of a relatively fixed aw, a relatively movable aw, a toothed member connected with said movable jaw, a rotatable screw adapted to engage said toothed member and a cam mounted to rotate with said screw but free to slide axially thereon, said cam serving to move said toothed member out of engagement with 0 said screw during a part of each rotation of said screw.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES FRANCIS MoLEAN.

I/Vitnesses:

M. DIPLOOK, LEON L. ESPERANCE.

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