US637978A - Millwright-vise. - Google Patents

Description

nu. 637,978. Patented Nov. 28, |899.

J. F. vALLlnE.

MILLWHIGHT VISE.

(Application Bled Oct. 7, 1899.) (No Model.)

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,INS/'INTERI NITED STATES PATENT Frio MILLWRIGHT-VISE.

vSPI]CIFICA'IION forming' part of Letters Patent No. 637,978, dated November 2S, 1899. Application tiled October '7, 1899) Serial No. 732,870. (No model.)

T0 all whom zit Hetty concern:

Be it known that I, JOSEPH F. VALLIRE, a subject of the Queen of Great Britain, residing at Whitins, in the county of Worcester and State of Massachusetts, have invented a new and useful Improvement in Millwright- Vises, of which the following is a specification.

Thisiuvention has reference to an im prove-` ment in the class of wooden vises used by millwrights and carpenters.

The invention consists in the peculiar and novel construct-ion whereby great latitude is secured in the adjustment, so that lumberI and timber varying greatly in thickness may be firmly secured, as will be more fully set forth hereinafter. j

In a vise of the nature described it is important that the saine may be quickly adjusted to thevarying dimensions of the tim,-

ber or board to be secured without using the` operatives hands, which are fully employed in holding the timber. i

The object of the invention is to facilitate the adj ustment within widely-differing thicknesses of timber or boards.

Figure 1 is a side view showing my iinproved wooden vise in solid lines in the positionoccupied by the parts when a piece of timber is clamped in the vise and in broken lines when the vise is released. Fig. 2 is afront view of the same. Fig. 3 is a top view of the vise. Fig. 4 is a view of a block connecting the operative footlever with the togglejointed lever. Fig. 5 is a top view, partly in section, of the operating-levers.

In the drawings, d indicates, preferably, the floor; but it may be a base to which the vise is secured. Wooden vises of the nature described are usually used in connection with a bench. They may be used independent of a bench orsecured to a bench in any suitable manner.

The fixed upright b, the upper end of which forms the fixed jaw, is secured to the floor or to a suitable base, preferably by means of the angle-irons b b', secured to the lower end of the upright b and to the floor or base. The braces b2 b2, secured at one of their ends to the door or base, have their other ends 'secured to the upper part of the upright b near the fixed jaw b3.

The movable upright c, the upper end of which forms the clamping-jaw c', is supported ou the fulcru1nbar c2, which extends through slots in the uprights 1i and c below the jaws b3 ando'. The fulcruin-bar is transversely slotted, the wedges c3 and c4 extending horizontally through the slots in the fulcrum-bar c2. The wedge c4 is preferably provided on its beveled edge with ratchet-tooth projections which engage with the fulcrum-bar, so that the same will be securely held in the adjusted position.4 The lower end of the upright o is provided with the longitudinal slot c5 and the upright b with a similar slot.

The foot-lever d extends through the slot c5 anda corresponding slot in the fixed uprightb. The foot-lever d is provided at its rear end with three holes and is pivotally connected to the upward-extending arms d of `the brackets dz, secured to the floor or base.

The upper ends of the arms d' are connected with the upright Z7 by the straps d3. The1ever cllis also provided at its rear end with Vtwo or morel holes and is pivota'lly secured `to the arms d', preferably at the points where.

the straps d3 are secured. The front end of the lever d4 is pivotally secured to the lever d5, the front end of which is pivotally secured to the upright c. The lever d5 is connected with the foot-lever dby the strap-block d, so that the levers Z4 and d5,formin g toggle-j ointed levers, may be operated by the foot-lever. The springeservesto open the jaws of the wooden vise when released.

In operating my improved vise the wedge c4 is placed in the required position to approximately adjust the fulcrum-bar c2 to the size of the wood intended to be secured. The wedge c3 is drawn out so that the narrowest part is in the slot of the fulcru m-bar c2. The operative now places the board or timber between the jaws c and b3 and while holding it pushes, usually with his body, the wedge cB inward until the jaw c bears against the wood or other material to be secured. The 0perative now presses down the foot-lever d with his foot, thereby bringing the toggle-jointed levers d4 and d5 into the straight line, as shown in solid lines in Fig. l, and forcing the lower part of the upright c outward and the jaw c' inward to clamp the article and firmly secure the same.

IOO

By the use of the fulcrum-bar c2 and the Wedges c3 and c4 the vise may be readily adjusted Within a wide range, and for eXtreme differences the foot-lever d and the lever d4 may be adjusted, while for ordinary use the natural spring of the wooden upright c will I be sufficient to bring the toggle-j ointed levers into the locked position, as shown in Fig. l.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. In a vise of the nature described, thel combination with the uprights provided with the clamping-jaws, and a fulcrum-bar supported in slots in the uprights and transversely slotted,of two wedges supported in the slots of the fulcrum-bar and bearing against the uprights, and a toggle-jointed lever operated by a foot-lever, whereby the clampingjaw may be adjusted and operated, as described.

2. In a vise of the nature described, the combination with the uprights b and c, the slotted fulcrum-bar c2 and the Wedges 08 and c, of the toggle-jointed levers d4 and d5, the foot-lever d,and connections between the footlever and the togglejointed levers; whereby the clamping-upright may be adjusted by a wedge forming the fulcrum of the` clampingupright and the article secured by operating the toggle-jointed lever through the footlever, as described.

3. In an organized vise of the nature described, the combination with the fixed upright b secured to a iioor or base, the arms d d and the braces b2 b2, of the movable upright c, the fulcrum-bar c2, extending through slots in the uprights b and c, below the jaws b3 and c', transverse slots in the fulcrum-bar, the wedges c3 and c4 extending through the slots in the fulcrum-bar and bearing on the nprights, the foot-lever pivoted in the arms d and extending in front of the vise, the toggle-jointed levers d4 and d5 connected with the arms d and the upright c, the strap-block d6 connecting the toggle-jointed levers with the foot-lever and the bars cl3 d3 connecting the arms d d with the upright b; whereby the jaws may be adjusted to the dimensions of the timber required to be secured and the strains exerted are virmly resisted, as described. 4

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

JosEPI-I F. VALLILRE.

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