US1667332A - Fuse tongs - Google Patents

Description

` April 24. 192s. 1,667,332

' L. L. STAHLER FUSE TONGS Filed`A12. 3l. 1926 Qwuantoz .bSfah zer Patented-Apr. 2.4, 1928. f I

LESTER L. `sTAHLEIt,"or UNION CITY, INDIANA.

' 'FUSE TONGs.

. Application med Agust 31,y 1926. serial No. ieaszak This invention relates to tongs for placing and removing fuses, these tongs being used for handling fuses in electrical plants where voltages are veryv high and where .y the fuse c boxes are often times disposed at a considerable height above the Hoor, though oliten'the 'fuse is at a height approximately the lsaine as that of the operato-r.

The general object of the present invention is to provide a fuse tongswhichis capable of use whether the fuse be at a height above the operator or approximately atthe same height as himself and further to provide a fuse tongs having two separate jaws hinged to each other with screw'tlueaded means op erable by the handle whereby the jaws may be closed or opened.

A further object is to so connect the wooden jaws to the jaw operating and supporting means that the jaws may open and close freely at any angle to thus permit the device to be used under a large variety of circumstances.` j

My invention is illustrated in the accompanying drawings wherein Figure 1 is a perspective View of my improved fuse tongs;

Fig. 2 's a side elevation of the same;

Fig. 3 is a transverse section through the aws.

3 Referring to these drawings it will be seen that the jaws 10 are complementary to each other and each jaw isformed of a relatively flat slab of wood with two inwardly projecting confronting ribs 11, the rib having a semi-'circular recess 12. These jaws are jointed by `flat hinges 13, these hinges being formed each by a strip ot strap iron extending acioss the back of the member 10 and then angularly bent and hinged to each other at 14 by means ofthe usual pintles. The

shank or staff 15 upon which the jaws are mounted has a ferrule 16 and a metallic head 17 having a screw-threaded shank 18. The

head 17 is reduced in diameter to provide a shoulder 19 and resting upon this shoulder is a collar 20 provided with opposed lugs. Links 21 are pivoted to these lugs.v

The screw 18 passes through the apex of an approximately V-shaped yoke 22,-the extremities of which are outwardly turned and formed to pivotally engage with lugs 23` which are Jformed upon the arms 24. The inner ends of these arms are pivotally connected to the links 21, The ends of the arms are inwardly turned at 25 and each is formed spending j aw. y

`As will be seen `from Figure 2the jaws 10 maybe tilted into any desired angle to `the planeof the yoke 22j-and by rotating ,the

' and socket joints, the jaws may takek any 'angular relation to the `leversA which may be required. By adjusting the handle clockwise the jaws will close tightly and by twisting the handle counterclockwise, the jaws will open .with` a ball 26 received fwithin a' socket2 E27 ,mounted nponthe (interface of the corretheball and socket joints and permit the jaws to open orclose freely at any angle desired, thus doing awaywith the necessity of using. two different forms of tongs, one for use where the fuse is disposed approximately at the same height as the operator and the other where the fuse is 'disposed above the operators head.

1.4A `fusetongs comprising a handle, op-

posed jaws, the jaws being hinged to keach other, a`yoke-having a screw-threaded opening, a .screwmounted upon the handle and extending through the screw-threadedopening of the yoke, levers pivoted to the yoke having their outer ends eachengage'd with a corresponding jaw by a universal joint, and links operatively connecting the inner` ends of the levers to the handle but permitting the rotation of the handle relative to said levers.

2. A fuse tongs comprising a handle, opposed jaws, the jaws being hinged to each other, a yoke having a screw-threaded opening,a screw mounted upon the handle and extending through the screwethrladed opening of the yoke, levers pivoted to the yoke having their outer ends each engaged with a corresponding jaw by a universal joint,

and links pivotally connected to the ends of tl'ie'levers, and a collar rotatably mounted upon the handle at its upper end and, to which the links are pivotally connected.

3., A :fuse tongs comprising a handle having a cylindrical head and a. screw-threaded ends of the yoke, a collar loosely surround` ing the head, links pivotally connecting the collar and the leversand ball 4and socket joint connections between the outer ends of the levers and the jaws.

4. A fuse tongs including opposed jaws, hinge members attached to thejaws and pivotally engaged with each other whereby said jaws may be turned 'into or out of a parallel position, a pole constituting a handle, means for swivelly supporting the jaws upon the pole and permitting the jaws to move toward or from each other, and means for moving the jaws toward or from each other including intel-engaging screw-threaded elements, one mounted upon the handle pole and the other operatively connected to the jaws whereby a rotation ofthe handle pole will aet to shift the jaws toward or from Veach other.

5. A fuse tongs including opposed jaws, hinge elements attached tothe jaws and pivota'lly engaged with each other whereby the jaws may be shifted toward or from a parallel posit-ion, a handle pole, arms, one for each jaw, each jaw having a universal joint Conneetion with the corresponding arms, means for swivelly supporting the arms upon the handle pole, a member engaging said arms and acting when shifted in one direction to close the arms and jaws and when shifted in the other direction to open the arms and jaws, and a screw-threaded member carried by the handle pole and having screw-threaded engagement with said member on the jaw arms toeause the jaw arms to shift in one direction or the other as the handle pole is rotated.

In testimony whereof I hereunto affix my signature. f

LESTER L. STAHLER.

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