US105919A - Improvement in tool-handles - Google Patents

Description

,i UNITED STATES Pnf'rnNTv OFFICE.

Jenna. DAv'1'D`s,-;0F'NEW YORK, N. Y.

y '.lM-PRovr-:MENT IN TooL-HANDLES..

Specification form-ing part of Letters `Patent No. 105,919, dated Angust'2,i18`7"0.

Be it known `that I," JOHN B. DAVIDS, of

i New York city, in the State of New York, have invented a certain new and Improved Handle Chise1s,les, and a great variety of hand. tools are providedwith tapering tangs adapt 'ed to drive into wood. Wood is an excellent material for handles, on account of its readi, ness of adaptation to slight differences in the fform ordimensions of the tangs, as also its lightness, cheapness, and its non-conducting qualil u tieswth-regard `to heat and cold; but it is lia' ble to split and to variously fail when subjected to hard usage. `My improved'handle employs `size 'ed te recereand .lit around 'the tang. and tev y "fo'rm the exterior surface ot' the greater portion,and, in short, to form the main body of the handle; but the material is e'ectnally dej fendedagainst splitting' or serious injurycith'er "-1 .yy-from too forcible driving in a large tan-g orfrein-.anyordinary violence in continued strike A ing-xenrthe handle with'a mallet. l i I' will proceed to describe 'whatl consider thebest 'means of carrying out my invention,` and will afterward designate the point which Ifbel-ieve to be newy therein.

i ".lhe accompanying-drawings forma part of 1 this specilication.

Eigurel is a central longitudinal section of Y kone formof .the interior arrangement.` Fig. 2

is` acprresporidngsection of another (which I .esteemja preferable) form of the interior. '.lhe flatterdi'ers--ffon the former inthe form of )the wood/andzflhetalat the frontend and in i j` havingthe backend. piece screw into instead jotiuponthe inainLmetal portion. Fig. 3 .is a `central'llongitudinal section `ofthe nain metal' i lpgportion of my handle. f Fig.,4 is a correspondf ing'section ofthe back end piece.

/fSimilar letters of reference' indicate like 'parts in all-the figures.

Ads-,the main .body ofthe handle, turnedlfromwvellsese1`i"ed wood in the form and size desired,.but. with a portion turned a little `'sm/aller at each end to allow the castings to i overlap thereon, as will presently appear. A holesproducedthrough the central or axial line ofthe handle, which heleis considerably larger at one end than the other and adapted toreceive a tapering castin g, (represented gen-v erally by the single letter B,.and several disi tinct portions -of which will be designated,

when necessary, by B' B2, 85e.) The casting By -is hollow and contains a close-fitting partof wood, C, which should be bored to a size ap proximating that of the tang which it is to receive. A casting having theexternal forni of a smeothly-rounded cap (represented by D) is secured by screwing, as' represented, in the back end of the handle, or the end farthest from the chisel E. l y

'.lhel casting B maybe described as composed of `four parts: first, a part which lmay be cy.-

lindrcal and is marked B second, the main` body, which is taperingland is marked B2; third, an extended flange, which Acovers the front end of the handle, (marked B35) and,

fourth ,a hollow cylindrical lip extending backward from the ange B3 and designedto serve as a ferrnle at the frontof the handle. This is represented by B4. Both the exterior and theinterior of the portion B? may be roughened, threaded, or otherwise prepared:-to takethe back of the handle) may be described as composed of three parts: rst, a screw, which is threaded into a correspondingly-tapped hole in the casting B and is marked Dl; second, a

thick and well-fitted shoulder, D2, adapted to pressv fairly and firmly against the rear end of 'the casting B; and, third, a broadspheroidal flange or shell, D?, ittingover and embracing the wood `A at the back end of the handle.'

.The lip or shell B4 at the front of the handle and the similar-corresponding lip or shell, D3, at the back of the handle should both abut their edges against corresponding shoulders nicely turned in the wood A, as represented.

'The castings B and D may benmade o f brass,

'German' silver, or various other strong materials; 'but I' prefer malleable cast-ironv for gen- All the several parts of my handle may be vfitted. cheaply and very accurately bymahitler 'I propose `to produce the handles in several sizes and styles adapted for ordinary chisels, firmer-chisels, and tools generally.

Modifications of my plan may adapt it for `socket rmer-chisels and socket framing-chisels. With either form or size the shoulders D2 transmit any blow on the back of the han` dle directly to the casting B, and the wood portion A has simply to perform/the function of filling out the handle and making a smooth form not liable to become highly heated in the sun or to injure the handby its extreme cold...

The metallic shells B4 and Dllave so little mass that they rapidly assume the temperature of the hand without causing any inconvenience. l

1` am aware that handles entirely metallic andlhandlesowood eased in metal have been before known,.as also handles provided with metallic fastenings variously and complexly arranged; but I know of none adapted to reeeive irregular tan gs and to afford all the adi vantages of mine.

To prevent the shoulderA ofv the chisel from 'breaking I can introduce a washer of rubber betweeuthis and the handle.-

I claim- The improved handle herein described, having au exterior or body, A, of wood, and au interior socket,- G, also of wood or analogous slightly-yielding and stron g material, with the strong casing B interposed between the parts kC and A and secured bythe cap D or its equivalent, al1 substantially as and for the purpose herein 'set forth.

In testimony whereoi'Ihave hereunto set my name in presence of two subscribing witnesses.

' JOHN n. DAvrns.

Witnesses:

'WM. C. DEY, THOMAS D. STETsoN.

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