US2295332A - Vise - Google Patents

Description

R. L. CALL Sept. s, 1942.

VISE

Filed May e. 1940 2 Sheets-Sheet 1 Lal.

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. Patented Sept. 8, 14942 UNITED STATES PATENT VOFFICIEL VISE` Reginald L. Call', Meriden, Conn., as'sg'nor to The Charles Parker Company, Meriden, Conn., a corporation ofvConnecticut Y Y Application'May 6, 1940, Serial No. 333,585

' 1 Claim. (Cl. 8.1-33) This invention relates to improvements in vises.

One object of this invention is to provide improved anchoring-means for the nut of a vise so that thenut will not be rocked forward toward the movable jaw, out of its properly-aligned position, when the jaws are brought together with considerable force to clamp an object.

Another object of this invention is to provide an improved anchoring construction Vfor the nut of a vise which can be cheaply manufactured.

Another object of the invention is to kprovide adjustable take-up Vmeans so thatthe nut can be held against its stop-'abutment to eliminate play or backlash of the nut.

Another object of the invention is to provide an improved vise formed of simple elements readily manufactured and readily assembled to produce an eflicient durable construction at minimum cost.

With the above and other objects in View, as will appear to those skilled in the art from the present disclosure, this invention includes all features of the said disclosure which are novel over the prior art.

In the accompanying drawings forming part of the present disclosure, in which one way of carrying out the invention is shown for illustrative purposes:

Fig. l is a side elevation, partly in section, of a vise constructed in accordance with the present invention;

Fig, 2 is a transverse sectional view on line 2-2 .of Fig. l;

Fig. 3 is a transverse sectional view on line 3-3 of Fig. 1;

Fig. 4 is a side elevation, partly in section, of the fixed jaw of the vise, illustrating one mode of constructing the nut-way, and with the nutway in partly-completed condition;

Fig. 5 is a rear end elevation of the xed jaw shown in Fig- 4;

Fig. 6 is a horizontal sectional view on line E- of Fig. 4, but illustrating the nut-way in completed condition;

Fig. 7 is a rear perspective view of the fixed jaw; and

Fig. 8 is a perspective View of the nut.

In the description and claim, the various parts and steps are identified by specific names for convenience, but they are intended to be as generic in their application as the prior art will permit.

In carrying out the invention in the way lillustrated in the drawings, the vise includes a first or fixed jaw-member Ill and a second or movable jaw-'member II. The xed jaw-member III has a usual retangulal guide-Opening l2 and a. baseporti'on or base I3. In accordance with the present invention, a horizontal cylindrical-shape nut-way I4 is provided in the base I3 at a location adjacent the lower surface I5 of the guideway'IgZ. The cylindrical-shape nut-way I4 can be' made in Yany suitable way. Thus, one way would be to drill a relatively-small horizontal hole of thediameter indicated by' the portion of thehole I5 entirely below the lower surface 'I5 ci the guideway IZ` (as shown in Figs. 4 and 5), and then by'means of a counterboring tool well known to those skilled in the Yart of machining, an enlarged 'cylindrical-shape ccunterbore or nut-way I4 is formed (as shown in Figs. -6 and 7). This counterboring operation causes the boring tool to cut out through the surface I5 to produce the elongated side-opening II in the nut-way Ill. Another way in which this cylindrical-shape nut- Way could be made, would be to omit the original small-diameter drilling, by clamping a flat metal block (not shown) on top of the surface I5 and then directly drilling or boring the nut-way I4 in the position at present shown with part of the boring or drilling operation passing through the flat block, after which the block would be discarded, all in a Way well known to those skilled in the art of machining. If, desired, the nut-way can be finished by reaming. By having the nutway I4 only extend a limited distance toward the movable jaw II, a stop-abutment I8 is formed at the end of the nut-way nearest to the movable `or second jaw-member I I, Y

A nut-member or nut I9 has a shank 20 of a size to readily pass through the side-opening I'I of the nut-way I4, and has a key-portion 2I accurately formed of cylindrical shape to form a secure t with the nut-way I4.

Preferably, an adjustable form of take-up means is provided to hold the key-portion 2l against the stop-abutment I8. The particular form of adjustable take-up abutment-means illustrated in the drawings includes a cylindrical abutment-plug 22 ttingfin the nut-way I4 and held therein by a drive-pin 23. A screw 24 and lock-nut 25 provide adjustable means for effectively holding the key-portion 2| against the stop-abutment I8 to prevent end-play of the nut I9.

In order to secure maximum perfection in the alignment of the finished screw-threaded hole 26 of the nut I9, the nut can be placed in its Dosition in the xed jaw I0 illustrated in Fig. 1

(with the main screw omitted), and by means of wedges or blocks (not shown) or otherwise, the nut can be firmly held or wedged in its desired proper position'of use, and then bored in line with the hole 21 in the movable jaw II, and later screw threading the nut hole to form the screw-threaded hole 26.

The movable jaw-member` II is provided with a machined rectangular slide 28 to slidably t in the rectangular guideway or slideway I2 of the fixed jaw-member I in a usual and well-known way. The movable jaw-member I I has a main screw 29 rotatably mounted therein and held against longitudinal movement by means of a half-collar 30 secured to the jaw-member 'I I by means of a screw 3|, the half-collar 30 engaging in an annular groove 32 of the screw in a wellknown way. The handle 33 serves for rotating the screw in one direction or the other to close or open the vise by the cooperative action of the screw 29 with the nut I9. In use, the cylindricalshape of the nut-way I4 and of the-key-portion 2l permits the nut I9 to swing a suliicient distance about the axis of the nut-way to permit the screw-threaded hole 26 of the nut to self-align itself with the screw 29.

Heretofore in the making of vises, the nut-way and key-portion of the nut have been made of dovetail form, but owing to the location of the abutment I8, and the cost and diiiculty of machining a dovetail nut-way, it has not been commercially feasible in moderate-cost vises to make an accurate t between the key-portion and the nut-way, with the consequence that when the jaws of the vise are heavily forced together to hold a piece of work, the nut is tilted about its engagement with the abutment I8 and toward the jaw-member II, with the consequence of tending to bend or distort the screw 29, thus damaging the vise.

With my improved nut-way and key-portion of cylindrical shape, however, these can be made of such very accurate t and at such very low cost, as to enable the making of an efficient durable vise at relatively-low cost. The term cylindrical-shape is used for convenience as a short term to mean a nut-way or key-portion having at least two opposite cylindrical-shape side-portions such as 34 and 35, of substantial extent forming part of a cylinder. And likewise, the key-portion 2l of the nut I9 has two opposite cylindrical-shape portions 36 and 31 to eiectively fit the corresponding portions 34 and 35 of the -nut-way I4. And the middle of one or more of the cylindrical-shape side- portions 34 and 35 and cylindrical-shape bottom-portion 38 could be cut away or omitted without substantial harm.

'Ihe invention may be carried out in other specific ways than those herein set forth provided they do not depart from the scope of the claim.

I claim:

A vise comprising: a first jaw-member having a cylindrical-shape nut-way having a side opening of less width than the diameter of said nutway; a screw-threaded nut having a shank-portion extending through said side opening, and a cylindrical-shape key-portion on the end of said shank-portion and fitting in said cylindricalshape nut-way; a second jaw-member carrying a screw adapted to cooperate with said nut to force said second jaw-member relatively toward said first jaw-member; and a stop-abutment at the end of said nut-way nearest to said second jawmember to limit the movement of said key-portion toward said second jaw-member.

REGINALD L. CALL.

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