US872048A - Hand-operated tool. - Google Patents

Description

No. 872,048. PATENTED NOV. 26, 1907.

W. BROAD. HAND OPERATED TOOL.

APPLICATION FILED IEB. 23,1907.

WITNESSES: 1" INVEZN'IOR WV"/ WJ/Zll'dmBroad 86" mm ATTORNEY UNITED STATES PATENT OFFICE.

WILLIAM BROAD, OF BEAVER FALLS, PENNSYLVANIA, ASSIGNOR OF ONE-THIRD TO ERASTUS E. PIERGEAND ONE-THIRD TO CHARLES A. WHITE, OF NEW BRIGHTON,

PENNSYLVANIA.

HAND-OPERATED TOOL.

Specification of Letters Patent.

Patented Nov. 26, 1907.

'Tools; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable'others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification. 4

My invention relates to a certain new, practical and useful improvement in hand tools that necessitate a revolving motion while being operated, as for example a screw-driver, auger, gimlet, cork "screw, counter bore, etc.

The object of my invention is the construction of a device of the character described I V that may-be readily and accurately operated with one hand, thus providing a convenient and efficient tool in the handsof electricians,

' mechanics, carpenters, or in fact any individual having use for such a device.

The important feature of my invention is the means providedfor operating any hand tool requiring a revolving motion.

Referring to the accompanying drawin s: Figure 1 shows my preferred form of handle and shank, also means provided at one end of said shank for receiving and retaining the op erating tool. Fig. 2, is a modification having a simplified handle portion with the tool formed as an integral part'of the shank. Fig. 3 is an enlar ed fragment'al sectional view of the inner end of the handle portion showing means for securing the ferrule and likewise retaining the shank in operative position. Fig. 4 is a cross sectional view taken on line 4 4 of Fig. 3.

' Throughout the difierent views shown in the drawings the numeral 1 designates the.

handle portion of my device which, in the preferred form, shown in Fig. 1, is provided with a plurality of recesses 22 for receiving different varieties of tools, andis likewise provided with a screw cap 3, of ordinary construction. This handle portion and cap are preferably made of wood, but any other su1t' able material may be substituted if found expedient.

Entering through the central portion of the inner end of the handle, and extending any desired distance toward the outer end thereof, is the shank portion 4, which is free to revolve in its seat, being retained therein by any suitable means; one method being as shown in Fig. 3, which consists in a pin 5 passing through the ferrule 6, and material constituting the handle portion 1, a little to one side of the center in order that said pin may register and seat in a circular groove 5 formed in the said shank portion 4. This arrangement, heretofore described, will permit of said shank having free play to revolve, but at the same time it will be prevented from moving out of its seat in the handle portion '1. The pin 5 also serves to secure the ferrule to the end of said handle; thus accomplishing a double purpose. The inner end of the said shank-4, which is seated in the handle portion 1, may engage a ainst a fibrous or suitable bearing 7 in or er to prevent wearing away of the material forming the handle portion at point of contact.

The shank 4 after assin out of the handle 1, is bent at a suitab e angfia with the portion 4 seated in said handle in order to -rovide a required leverage in accomplishing t e object sought after. In the form shown in the drawing, Fig. 1, this bent portion 8 is doubled back on itselfin order to provide a suitable gri ping feature 9 useful in completing the fina operation of some tools, as for instance the last partial turn necessary to firmly seat a screw. This extended or gri ping feature formed in the bent portion of t e shank is one of the main features necessary to the successful operation of my device and will be found advantageous in many instances. After being doubled back on itself to a point about half way between where this bent portion 8 branches away from the part 4 seated in the handle, ,and the outer end of the gripping ortion 9, there is another bend tool, which has been inserted in the chuck 1 1,

or else forms an integral part of the shank, as shown in Fig. 2 is brought into engagement with the object onwhich it is intended to be used. The operator, having a firm grip with one hand on the handle portion 1, brings sufficientpressure to bear as would be necessary in handling any ordinary to'ol now' known and designed for the pur ose, and then pro- 'ceeds to operate the han le portion 1 in such a way that, it will describe an orbital movement, the diameter of which depends upon the length of the leverage containedin the bent portion 8,.said orbital movement'decreasing in diameter as it approaches the outer end of said handle which 1s held firmly in the palm of the hand. The bent portion 8 forming the leverage, and'likewise the gripping ortion 9 will thus be made to descri a circ e and in so doi will rotate the portion 10 of the shank, which, when turning, revolves on its own axis, and consequently the tool connected thereto will operate against the object in contact therewith. At the same time the portion 4 of said shank will rotate in the handle portion 1. It will readily be seen that my device can be made to operate either to the right or left, at the will of the operator asthe case may require.

Fig. 1 of the drawings shows and I claim the portion 10 of the tool shank on a direct line with the end of the ortion 4 seated in the handle 1, but I do not 'mit myself to this exact construction, as the said portion 4 may extend a less distanoe into the handle, without impairing the efliciency of my device or de artmg fromthe spirit 0 v the invention.

aving thus fully shown and described my invention, what I claim as new, and desire to secure by Letters Patent, is

'or cross with the end .1. In a device of the character described, a tool shank. provided at one end with. a

tool, an intermediate ortion forming a T v aving the too and. the other end operatively seated in a suitiforrna T head on the portion of the shank provided with the tool; substantiallyas described.

3. In a device of the character described, a tool shank provided at one end with a suitable chuck or socket for holding a tool, the other end being operatively seated in a suitable handle, with its axis at a suitable angle to the axisof the chuck, the interme.

diate portion of said shank being so bent or shaped as to form a T-head on the portion of the shank provided with the chuck; substantially as described.

4. In a device of the character described, a suitable handle portion; a shank, one end thereof being operatively seated-in said handle, and having a bent ortion therein to constitute a leverage, sai bent portion being doubled back on itself so as to form a grip,- ping feature, also a straight portion to which Is attached the tool to be operated, the latter portion being substantially on a direct line with the end of the shank seated in said handle portion.

5, In a device of the character described, a suitable handle portion; a shank, one end thereof being operatively seated in said handle, and having a bent ortion therein to constitute a leverage, sai bent ortion being doubled back on itself in or er to form a gripping feature, also a straight portion forme substantially on a direct hne with the end of the shank seated in said handle; a suitable chuck or socket on the end of said straight portion for receiving the tool to be operated; and means for retaining the shank in said handle.

In testimony whereof, I aflix my signature, in presence of two witnesses.

. WILLIAM BROAD Witnesses PIERCE, CHAs. W. BRADSHAW.

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