USRE139E - Improvement in screw-wrenches - Google Patents

Description

f g UNITED STATES PATENT OFFICE.

LORING GOES, OF WORCESTER, MASSACHUSETTS.'

ISMPROVEMENT IN SCREW-WRENCHES.

Specification forming part of Letters Patent No. 2,054, dated April 16, 1841; Reissue No. 139, dated June 26,- 1849.

.To alZ whom it may concern.-

'on the bar from or toward the permanent jaw Be it known that I, LoRING GoEs, of Wor- C, the rear end of the tubular projection D Oester, in the county of Worcester and State being provided with and sustained by a bri- Of Massachusetts, have invented new and usedle, E, which embraces and slides ou thebar. ful Improvements in Screw-Wrenches; and I At the' rear end the screw is provided with a do hereby declare that the following is a full, head or rosette, G, the periphery of whleh clear, 'and exact description of the principle turns in a notch or recess, H, made in the edge or character which distinguishes them from all of the bar, as shown by dotted lines, by whloh other things before known, and of the manner the position of the said rosette is retained re1- of maklng, constructing, and using the same, atively to the handle. reference being had to the accompanying The han d represented by dotted lines inwlngs, making part of this specification, dicates the manner in which my improved in which` wrench is operated. The handle is grasped Figure 1 is an elevation of my improved by the fingers, and the rosette is operated by wrench, and Fig. 2 an elevation of a wrench the thumb of lthe same hand, so that 4without previously known but not of my invention. any change in the position of the hand the umyimproved wrench the inner jaw slides movable jaw can be moved toward or from on the bar of the permanent jaw and handle, and 1s moved by a screw at the side of the bar size required, with one hand.

handle, whereby the movable jaw can be ad- Ijusted with the thumb of the hand Which grasps and holds the handle.

e prin and that which dlstlngulshes it from all other things before known, consists in moving the adjustable jaw by means of a screw placed at the side of and parallel with the bar ofthe bearings for the screw is avoided.

ings.

i to secure by 'Letters Patent, is`

1. Moving the sliding jaw by a screw comversa.

In the accompanying drawings, A represents a quadrangular bar of metal wi th a permanent by the head or rosette or its equivalent, which retainsthe same position relatively to the handle during the operation, substantially as described. y

allel with the bar of the permanent jaw and handle, substantially as described, in combination with the rosette or its equivalent, retained in its position relatively to the hand in the mannerdescribed.

Witnesses: LORI N G COES. Issue DAVIS, JONATHAN DAY,

J. S. WooDWoETH.

the journal K (see dotted lines) of a screw, F, which is placed parallel with and by the side of the bar. This screw is tapped into a tubular piece, D, that projects from the back face of the adjustable jaw B, which is fitted to slide the permanent jaw, to set the wrench to any y means of my improvement the bar can be made of any desired form best adapted to handle. At the same time the use of two he advantages' of my improved wrench over other methods of construction will be seen by comparison with the wrench represented by Fig. 2 of the accompanying draw- VVhat I claim as my invention, and desire

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