US88560A - Improvement in wrench - Google Patents

Description

ftluitml 535mm ,y @anni l @it ORLANDO V. FLORA, OF MADISON, INDIANA,"ASSZIGNOR TOHIMSELF AND CHARLES ALLING.

Letters Patent No. 88,560. dated April.` 6, 1869; antedated March 23, 1869.

IMPROVEMENT IN WRENCH.

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

To all` whom lfit may concern.-

Be it known that I, ORLANDO V. FLORA, of Madison, in the county of Jefferson, and State ot' Indiana, have invented new and useful Improvements in Screw- Wrenches; and 1 do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification. i

,The object of this invention is to combine strength, simp1icity,..and. cheapness, with rapidity ofoperation, cleanliness, and durability in a screw-wrench, by means of the peculiar construction and arrangement of parts described, as follows:

The drawing exhibits a side view of the wrench, partly broken away, to show the interior of the handle.

A is the wrench-bar, to which is attached the hammer-jaw E, as shown.V

On the lower end of this bar is out a double or triplethreaded screw, with a steeplpitch.

The back jaw B is cast in one lpiece with the handle, which is hollow.

Through this jaw is an opening for the admission of the bar A, which passes downward into the hollow of the handle,

C isa long-s hanked nut, which is tapped at its upper end, to iit the screw on the'bar A.

, This nut is entered at the circular opening in the but of the hollow handle, and has a rosette, or milled head, D, 'on its outer end.

Just above this milled head is cut the groove a, in

the nut C.

The screw c passes through and is threaded in a hole in the lower edge of the hollow handle, and engages `with the 4groove a, the object being to prevent the uut O from moving up or down in the direction of its length,v

but, at the'same time, to permit its revolving onits axis.

mis a covering for the metallic handle, of rubber, or

mainly, to keep the hand-operator from slipping, when using the wrench, and will also prevent the sensation of cold experienced from handling metallic substances. It forms, also, a good cushion for the hand.

The wrench is operated by turning the rosette D, either forward or backward, as we may desire the jaws of the wrench to open or close.

' By reason of all the working-parts being Yenclosed in 'the hollow handle, all dust and grease are excluded, the parts are kept clean, and the wrench lasts much longer, in consequence.

The long-shanked nut, wholly enclosed, except its milled head, in the hollow handle, allows a long movement of the 'jaw E, and throws all the strain on the enclosing handle, which can be ofthe utmost length consistent with good proportion.

Another advantage is, that the nut being held firmly at both ends,.keeps the wrench-bar rigidly in line with theaxis ofthe handle. v

The pitch of the operating-screw being great, but

the jaws. f

This wrench is made entirely of iron, principally malleable, and, having but three principal parts, strength, simplicity, and cheapness are the consequences.

Having thus described my invention, What I. claim as` new, and desire to secure by Letters Patent, is i The bar A, jaw E, jaw B, with its hollow handle, and covering/m, screw c, nut C, and milled head D,

and'for the purpose herein speoitied.

y ORLANDO V. FLORA.

Witnesses:

W. A. SIDDALL,

HENRY GoNNET'r, Jr.

other elastic substance.- rI his covering is intended,

few turns of the rosette D are required to open or close constructed and arranged to operate substantially as

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