US1799526A - Vise-operating mechanism - Google Patents

Description

April 7,1931. ,4 NYLANDER 1,799,526

VI SE OPERATING MECHANI SM Filed July 21,1930 2 Sheets-Sheet 1 April 7, 1931. A. L. NYLANDER 1,799,526

VISE OPERATING MECHANISM Filed July 21, 1950 2 Sheets-Sheet 2 ALBERT L. nrrannnn, on rian rsL-ann ILLINOIS VISE-OPERATING "MECHANISM Application filed 5111721, 1939. Serial 110 469334.

My present invention relates to vise operating mechanism. and has for its object the provision of instrumentalities which will enable a bench worker to operate thestandard form of iron or steel bench vise with the foot, instead of the screw now generally employed, so that the bench worker will have both hands available for inserting into and removing the work from the vise, or if these operations can be done with one hand, the operator need not lay down his tool when relocating the work or lnserting a new plece of work 1n the vise.

With modern manufacturing methods Where the same operation has to be done on a number of articles my apparatus will be found a great economizer of time and effort.

Also, as will hereafter be seen, I have provided instrumentalities for controlling the pressure exerted by the vise jaws so that when the apparatus is adjusted as desired the jaws will close with exactly the same pressure until a new adjustment is made. This, also, is a great advantage as it obviates the bending or breaking of the work through the undue tightening of the vise.

As will hereafter be seen, my apparatus be easily assembled with old bench Vises of standard designs aswell as being capable of being built into newvises, and to facilitate its shipmentfor installation in old Vises, I have made the treadle arm of the operating lever detachable so that the apparatus may be I put in a relatively small package forv shipemployed for designating similar parts' I attain the foregoing objects and results by means of the structure illustrated in the accompanying drawing, in which- Fig. 1 is a side elevation of a vise mounted upon a work bench with my invention assem-l bled therewith. V

ig. 2 is a longitudinal central section of a portion of the base and the stationary and movable jaw.

Fig. 3'is a transverse section on line 8-3 of Fig. 2.

Similar reference characters have been throughout the respective views.

The present standard form of metal bench vise, with which my apparatus is associated,

l3 toward the stationary lever jaw 10.

comprises a stationary jaw 10 integral with a base llfwhich is bolted or otherwise..secured to the bench and'which base is transversely slotted to-receive a reciprocable slide arin 12 on theouter end ofwhich is pr0-= vided, usually-- integral withv the slide arm, the movable jaw .13 of the vise. Just below the 1 transverse slot is provided {integral L with the base a projection or. bracket-14: to assist in supporting the slide arm and movable jawwhen the-latter is in open or extended ,position.

,Theislide arm is .centrallyzchanneled from theibottom, as at 15, to'accommodatei-rthe screw with which the vise is .Ordinarilyppe erated. This screw iseliminated Whenzmy apparatus is employed. Besides theelimination of the screw from the standa .dvisethe nlys alterations which are (necessary are the vertical channeling-of. the bracketlt, as at 16, and the transverse boring thereof, seat 17. I also transversely bore.v I the. slide. arm l2-3l3.-,SP2.CQ.CllllI1V&lS,;aS;a,b:l8,

- My operatinganechanism, in -.-addition -to the viseprovided as above. described, comprises a right angledlever arm 19,.the shorterlarm whereofis slotted,,.as atQ O, at its end to-permit thepassage of areinovable pin 21.;gwhich is inserted through; the desired bore 18 in the slide arm. Below the slot 20 in: theshortarmof. thewright, angled. lever is a bore 22-tlirongh which passes a pinch-pin 23; inserted through the transverse bore .17 in thebracket 14.. j I ,lhe' upper edge ofthe long arn ofthe; right angled lever is trans-VerselysIOttedfiat intervals-,-; as at; 9A. I provide. aiweighti25 channelled topermit thepassage-ofthe long arm of the right angled lever and also top ers mit'ithe passage of a'latchstrapQG. The'rear' end of this'latch strap 26 is bent upwardly and forwardly, as at 27, to impinge against Y the weight 25 and prevent it from sliding off of the arm. The forward end of the latch strap is bent downwardly as at 26a, to enter one of the slots 24:.

It will now be seen on that the weight 25 the long arm of the lever-arm 19 pivoting on the pin 23 will force the movable vise jaw Ilo operate the lever to release the vise I provide the treadle arm 29 with the right angled lower end upon which the foot is placed. The upper end of the treadle is bent over to provide. the hook 31 for engaging the long arm of the right angled lever 19. A headed pin 32 is provided in the long arm of the right angled lever arm and a stop pin 3.3 is

provided adjacent thereto. The upper portion of the treadle is inserted under the head of the pin 32 and against the stop pin 83 and drawn downwardly until the hook 31 engages the right angled lever 19, which renders the treadle rigid with respect to the lever arm until the hook 31 is disengaged therefrom.

To adjust the vise for a particular piece of work the treadle arm is pushed inwardly sufliciently farto permit the withdrawal of the removable pin 21. The slide arm 12 is then either pulled out or pushed in the requisite distance and the removable pin is again inserted through the bore 18, which is then opposite to the slot 20 in the upper end of the short arm of the right angled lever 19. Also, it may be desirable to adjust the weight 25, which is done by removing the projection 26a of the latch strap for the slot 24 in which it 'is inserted and moving the weight backward or forward to the approximate correct position which will permit the projection 26a of the latch to engage a slot 24; in the top of the long arm of the right an led lever.

flaving described my invention what 1 claim as new and desire to secure by Letters Patent is: r

1. In combination with a vise having a transversely slotted base and an integral fixed jaw and a movable jaw carried by a slide co-operating with the slot in said base, a right angled lever pivoted to said base and 'detachably connected with said slide arm, a weight co-operating with said right angled lever and a treadle depending from said lever.

2. In combination with a vise having a slotted base and an integral fixed jaw, and a movable jaw carried by a centrally channelled slide arm co-operating with the trans verse slot in said base, a right angled lever' arm pivoted in the slot of said slide and to said base, a weight co-operating with said lever arm and a treadle extending from said lever arm.

ALBERT L. NYLANDER.

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