US112108A - Improvement in wrenches - Google Patents

Description

MPETERS, PHOTOAUTMQGRAPHER. WASHINGYON, D c.

ELIAS Banen, or Tirusvittn;rnfNsYLvANIA.

Leners ram 'Nei-12am, dma February 2s, 1871'.

`IMPROVEMENT IN WRENCHES.

The Schedule referred to in these Letters Patentand making part of the same.

I, ELIAS'BEAG'E, of Titusville, in the county of Crawford and State of Pennsylvania, have .invented certain new and useful Improvements in Wrenches, ot' whichI the following is a specification.

My invention relates to that class of wrenches in which a movable jaw is operated by a pivoted lever handle; and

.lt consists inthe combination of an' independent traversing lock-nut with a screw on the shank oi' the movablel jaw, and an abutment on the shank of' the fixed jaw, for the purpose oi' constituting a lock to the 'movable jaw when set, s'o as to hold the wrench to its work by a device independent of'the operating lever.

l Jn the accompanying drawing- Figure 1 represents an elevation of a wrench, showing the movable jawV clamped inv position by the independent `traversing lock-nut.

Figure 2 represents a similar view, showing the operating lever thrown ont ofY gear with the movable Jaw.

lhe'movable jaw A of the wrench is made to slide upon the shank B of the tixed jaw C, so as to bite the nut or article to be turned in the usual manner.

The shaukD of the movable jaw has cogs or teeth, a, on its side next to the fixed shank, -into which matcircogs, b, on the pivoted end ofthe lever -handle E, by lwhich the movable jaw isV operated so as to open and close it with the iixed jaw by simply .turningthe handle E upon its pivot c, which passes through ears d on the rear end of the 'fixed' shank.

lhe shank D of the movable jaw A carries a screwstem, F, which moves with it, and is provided with an independent lock-uut, G, which traverses said screw Rand acts against a stop or abutment, H, on the rear endof the' fixed shank B, so that as the movable jaw is made to bite upon the nut, it is held up tightly and securely to its work by bringing the lock-nut- G against the abutment H,'so that the tighter the jaws are clamped upon the article, the tighter they may be locked to their hold.

' The lever handle E moves the adjustable jaw A in eitherdirection through its cogged-connection, when 'turned Within a certain lange of motion; but when the handle is broughtto a position at right angles or nearly so to the xed shank, the cogs b of the lever E will be Adisengaged froml those of theshank, and

-thus allow the movable jaw to be adjusted as may be required before bringing the lever into gear, as Shown in iig. 2.

This feature is of great advantage in applying the wrench, because it enables the lever handle to be in the best position for use with-respect to the sizeof the nut. y y

The movable jaw is under the control ofthe handle E, so as to be operated by its cogs to either open or close the jaws, and the lock-nut simply traverses the screw to clamp the'movable jaw against the abutment ofthe iixed jaw.

The locking of ythe movable jaw when clamped to the work is of great advantage in holding the wrench to its work, and at the same time allowing' it to .bite more 'firmly upon its work by the free action of vthe leverhandle.

By this 'arrangement of the parts, the wrench can be operated in either direction, while obtaining all the advantages of a cogged lever-wrench.

Having thus described my invention,

I claim- In a pivoted cogged lever-wrench, the arrangement' and combination ofthe fixed abutment H, screw-stem F, ltraveling locking-nut G, rack D, and the fixed and movable jaws C and A, operating substantially as de.

scribed.

-In testimony wliereof I have hereunto signed my name.

ELIAS BEACH.

Witnesses:

A. E. H. J onNsoN, J .-W. HAMILTON J oHNsoN.

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