US668299A - Spokeshave. - Google Patents

Description

JUSTUS A. TRAUT, OF NEW BRITAIN, CONNECTICUT.

SPOKES HAVE.

SPECIFICATION formingpart of Letters Patent No. 668,299, dated February 19, 1901. Application filed October 23, 1900I Serial No. 34,012. tllo model.)

To a/ZZ whom. t may concern,.-

Be it known that I, JUsTUs A. TRAUT, a citizen of the United States, residing in New Britain, in the county of Hartford and State o f Connecticut, have invented certain new and useful Improvements in Spokeshaves, of which the following is a specification.

This invention relates to spokeshaves, and has for one object the provision of an improved tool which may be employed on various varieties of wood with good results and one in which the knife and the guard or throat-gage are adjustable in planes at right angles to each other, the back or" the guard being formed with a plane face constituting a wall of the throat for the reception of the shavings, whereby the straight edge of said guard opposed to the knife may when injured or blunted be readily renewed by simply grinding said face.

A further object of the invention is the provision within the stock of the spokeshave of a chamber for the reception of shavings, the upper wall of said chamber being curved outwardly to facilitate the discharge of said shavings.

A further object of the invention is the provision, in connection with a spokeshave, of a guard or throat-gage, the working surface of which is convex both transversely and longitudinally.

In the accompanying drawings, Figure l is a plan view of my improved spokeshave, part of one of the handles being broken away. Fig. 2 is a side elevation, partially in section. Figs. 3 and 3 are transverse sections on line ma", of Figs. 1 and 2, showing different adjustments of the guard or throat-gage. Fig. 4.- is a perspective view of the knife or cutter. Fig. 5 is a perspective view of the guard, and Fig. 6 is a perspective View of one of the bolts for adjustably securing the knife in position.

Similar characters designate corresponding parts throughout the several views.

Referring to the drawings, the numeral 5 designates the stock of my improved spokeshave, having the usual handles 5' 52 and provided with a chamber 6 (the wall 6 of which is curved outward for a purpose hereinafter described) and with a forward straight portion 62.

Formed in the stock at each end of the chamber 6 are grooves 7, having rabbeted portions 7 constituting guideways for the reception of flanges 8 on the ends of a knife or cut` ter 9, which is preferably of the razor-blade type and is slightly curved longitudinally, and tted in said grooves 7 are the flat oblong heads l0' of bolts 10, the threaded shanks of which pass through perforatious in the stock and carry thumb-nuts l2, by turning which the heads l0 may either be forced tightly against the flanges 8 of the cutter or released therefrom to permit said cutter to be adj usted, as desired. Cooperating with this cutter is a guard or throatgage 13, slotted at 13' for the reception of screws 14, which enter the stock, in virtue of which construction the guard may be adjusted transversely of the cutter to vary the dimensions of the throatin which the shavings enter between said parts. It will be observed by reference to Figs. 3 and 3a that this guard is provided with a plane back 132, which terminates in a straight edge 133, and when this straight edge is blunted or otherwise injured by wear, as frequently happens, it can readily be restored by removing the guard and grinding the flat face 132, after which it can be replaced with said face in engagement with the corresponding fiat face 62 of the stock. On its lower or grinding surface the guard is made convex both longitudinally and transversely, as at 15, and can therefore much more readily be applied to rounded surfaces ofthe work. The face 15, which extends outward from the edge 133, is joined to the back 132 by the curved surface, which at its upper portion becomes nearly or quite parallel to the back, forming a body of convenient thickness in which to locate the `slots 13.

By reference to Figs. 3 and 3a it will be seen that the knife 9 and guard 13 may be so adjusted with relation to each other that the cutting edge of the knife will be brought into line with and almost touch the straight edge of the guard, whereby7 a very fine shaving may be removed from the work, if desired. This is especially important when cutting hard wood or across the grain and obviates to a large extent the danger of splitting the wood or of tearing out a splinter therefromaccidents of frequent occurrence with the old styles of spokeshaves, in which the knife overlaps a beveled edge on the guard.

As is well known, chips or shavings enter- IOO ing the mouth between the guard and knife tend to curl or assu me a helicalforin, and aid them in this action they are caused to impinge against the curved Wall 6' of the chamber 6 and are by said wall guided and deflected toward the lexterior of the stock.

By my improved construction it will be seen that the guard may be so adjusted that the edge of the knife may be brought v`in'to` line with the straight edge 133 or caused slightly to overlap the same, if desired, thereby enabling the tool to be employed on "vari-y ous kinds of woods, either hard or soft, at;

, pleasure, for, as is obvious, the height-of the ythese bolts and the bearing-surfaceof the guard or throat-gage are flush with eaeh other', so as to form a smooth Working facey for the tool.

:Preferably the stock and its handles are formedjof metal in an integral casting, al-

though the invention is not limited in this re-- spect.

My invention is not limited to the precise details illustrated and described, and modiicationsmay'be made in the shape of the parts Without departure therefrom.

Having thus described my invention, what I claim isl. In a spokeshave, the combination with a chambered stock of a cutter secured in said steek; and a guard or throat-gage coperating vwith said cutter and having a working face curved in tvvo directions and a plane back adjacent to the curved surface, said guard being adjustable to bring the Working surface of ,said gage substantially to a position in'line With the edge of the cutter.

2. In aspokeshave, the ,eombinatiom with' a stock and its' handles, said stock having'a chamber with an 4,outward:1y-curved Wall and also having grooves and guideways'atthe ends of said ehamber,`of alongitudinallyeurved cutter having flanges fitted in the Ways'of said steek; bolts having heads in engagementyvith saiddanges a guard or throatgage having a s i-,raightu back portion adjustably secured to the forward wallot the stock, the Working surface of said guard or throatgage projeing from Seid back perno and being eurved both longitudinally and transversely, and said gage being adjustable on the stock to bring its Working surface substantially int-0 `line with 1h@ esige lof the Cutter,

lsnbstantial1y as and for the purpose specified.

. JUS'JIUS A. TRAUT.

Witnesses:

RoBT. N. PEoK, M. G. PORTER.

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