Tag: Spokeshave Cutters

No. 778,922 – Woodworking-Tool (Justus A. Traut) (1905)

[paiddownloads id=”613″]778922

UNITED STATES PATENT OFFICE.

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JUSTUS A. TRAUT, OF NEW BRITAIN, CONNECTICUT.

WOODWORKING-TOOL.

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SPECIFICATION forming part of Letters Patent No. 778,922, dated January 3, 1905.
Application filed June 6, 1904. Serial No. 211,258.

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To all whom it 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 of Connecticut, have invented certain new and useful Improvements in Woodworking-Tools, of which the following is a specification.

This invention relates to woodworking tools or implements of the general class in which cutters are adjustably fixed in place — as, for instance, in spokeshaves and analogous artices.

My present improvement relates to the construction and mounting of the cutter and of the means for attaching the cutter and adjusting the same on the tool or implement.

For the purpose of illustrating my present improvement I have shown the same applied to a spokeshave.

In the drawings accompanying and forming a part of this specification, Figure 1 is a plan view of a spokeshave provided with my present improvements. This view is taken with the cutter uppermost, this arrangement being adopted for convenience of illustration. Fig. 2 is a side elevation as seen from the right hand in Fig. 1. Fig. 3 is a cross-sectional view in line 3 3 of Fig. 1. Fig. 4 is a plan view of the cutter mounted on its carrier. Fig. 5 is a side elevation thereof as seen from the right hand, and Fig. 6 shows an alternative form of the end stops on the blade-carrier.

One of the features of the present improvements relates to the manner in which the cutter is mounted on the implement and by which the strains due to the clamping down of the retaining or binding devices are applied directly to a cutter-carrier, this being accomplished in such a manner as to leave the cutter normally free of such strain or cramping action as would tend to interfere with the proper holding of the same or would tend to spring and deflect the cutter.

My present improvements in the preferred form in which I have illustrated them in the present case are adapted for holding the cutter rigidly in place without applying pressure against the ends of the cutter, and at the same time the clamping of the cutter-carrier is effected by a direct pressure in one direction I only and is accomplished by the clamping action applied to relatively large surfaces, thus producing an efdcient holding of the parts together without producing the deiiection of the cutter or injurious strains in any part of the same. In this connection it will be remembered that the steel of which the cutter edge should be made must be of a high quality, whereas a more ductile and flexible quality of metal is desirable for use in making the carrier or any part of the implement which is subjected to intense strains or pressure. By means of the construction herein illustrated these objects are accomplished, the cutter proper (designated in a general way by 7) being made of relatively hard steel of high quality, while the carrier (designated in a general way by 8) is made of sheet steel or other suitable metal of a relatively tough and flexible character.

Another feature of the improvement relates to the manner of connecting the cutter onto its carrier by uniting the parts together by attaching devices — as, for instance, the rivets 9, located at some distance from the ends 10 of the cutter. In this way I obtain flexibility of the end portions of the carrier, allowing these to spring somewhat, and thus holding the cutter firmly in place without subjecting the cutter-blade itself to the deflecting strain. By this means a slight springing of the implement is prevented from affecting the fastening of the cutter in place, either as to the position of the cutter or the degree of security with which it is held, and by this means also I provide for using a lesser degree of precision in the making of the several parts, as well as for the complete interchangeability of the cutters with a lesser degree of precision in the manufacture of the implement, all of which results and objects are of practical importance and value in this art.

The stock of the tool is designated in a general way by 11 and comprises hand-grips 12 and a body portion 13, to which a sole-carrying member or guard-plate 15 is adjustably secured, the sole 16 whereof may be adjusted relative to the plane of the blade by means of set-screws 17, passing through elongated holes 17′ in the sole-carrying member. It will be seen that the ends 18 of the carrier project beyond the ends 10 of the blade and that they have ways 19 for suitable set-screws 20 for securing the blade to the body of the stock. Blocks 21 may be placed upon the top of the end portions of the carrier and lie between the ends of the blade and shoulders 22 of the stock to add to the finish of the instrument and to assist in the securernent of the carrier. The edge 23 of the blade may be adjusted toward and from the sole to regulate the cut by means of shifting the carrier back and forth and tightening the set-screws after it has been adjusted to the desired position.

It will be seen that the ends of the carrier project beyond the ends of the blade and that the carrier is secured to the blade inwardly of such ends whereby the strain of clamping or of working will be neutralized by the yieldability of the carrier to thereby protect and preserve the blade. The form of blade here employed is one made of a plate of metal having a cutting edge, as 23, along one of its sides, and the carrier is also in the form of a plate of metal overlaying the blade at the side or edge, as 26, opposite the cutting edge.

In using the implement the workman will from time to time grind away the edge 23 of the cutter-blade, the cutter being set forward toward the guard-plate or sole 15. The extending ends 24 of the said carrier are represented in Fig. 4 reaching forward to engage the edge or face 25 of the member 15 to limit the forward adjustment of the cutter, and it is intended that these ends when so constructed shall be ground away from time to time accordingly as the cutter-blade becomes narrower after continued use, so that said ends 24 of the carrier constitute stop devices for enabling the workman to set the cutter in the proper position. For convenience said stop ends are shown formed on the outer sides of the slots 19; but, if desired, they may be formed on the inner side of the said slot, or both sides, as indicated at 24 24′ in Fig. 6.

Having thus described my invention, I claim —

1. A cutting-tool embodying a stock, an unyielding blade, and a yieldable connection between the blade and stock andrrigidly secured to each.

2. In a woodworking-tool, the combination with a stock portion having a sole, of a resilient blade-carrier adjustably secured to the stock adjacent to the sole and intermediate the blade and stock, and a rigid blade having an edge and secured intermediate the ends of said edge to such carrier.

3. A woodworking-tool, comprising a stock portion, a rigid blade having a cutting edge, a relatively yieldable carrier rigidly secured to the blade inward of the ends of said edge and intermediate the blade and stock, and means for adjustably securing said carrier to the stock and engaging the same at points beyond the said ends of the blade edge.

4. A woodworking-tool comprising a stock portion, a rigid blade, a relatively yieldable carrier rigidly secured to the blade inward of its ends, means for adjustably securing said carrier to the stock, and stop-faces on the carrier to limit its forward adjustment.

5. A blade for a woodworking-tool, embodying a rigid plate having a cutting edge upon one side, a resilient carrier secured to the other side and projecting therebeyond and having securing means at such projecting portion.

6. A woodworking-tool having a stock, a guard carried thereby and adjustable relative to the position of the cutter, a cutter rigidly secured inwardly of its ends to a carrier; said carrier; means to secure the carrier to the stock; and stop-faces on the carrier to limit its forward adjustment.

7. In a woodworking-tool the combination with a stock, of a resilient carrier-bar clamped with one face adjacent to the stock, a rigid cutting-blade rigidly secured to the other face of said resilient bar sufficiently remote from its clamped portion to constitute the bar a resilient connection between the blade and the stock, and means to clamp said carrier-bar to the stock.

JUSTUS A. TRAUT.

Witnesses:
W. J. WORAM,
E. G. HOFFMAN.

No. 752,365 – Spokeshave (John H. Spear) (1904)

[paiddownloads id=”599″]752365

UNITED STATES PATENT OFFICE.

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JOHN H. SPEAR, OF SPRINGFIELD, MASSACHUSETTS.

SPOKESHAVE.

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SPECIFICATION forming part of Letters Patent No. 752,365, dated February 16, 1904.
Application filed August 21, 1903. Serial No. 170,298. (No model.)

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To all whom it may concern:

Be it known that I, JOHN H. SPEAR, a citizen of the United States of America, and a resident of Springheld, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Spoke-shaves, of which the following is a full, clear, and exact description.

This invention relates to improvements in spokeshaves, and more particularly pertains to the means for securing the adjustment convenintly of the blade or knife so that it will cut a fine or thick shaving, as desired, and for confining the knife when adjusted.

The invention consists in a spokeshave constructed substantially as shown in the accompanying drawings and as set forth in the claims.

In the drawings, Figure 1 is a perspective view of the improved spokeshave as seen at its under or shaving side. Fig. 2 is a perspective view of the same as seen looking at the back and top thereof. Fig. 3 is a cross-sectional view as taken on the line 3 3, Fig.1. Fig. 4 is a cross-sectional view as taken on the line 4 4, Fig. 1. Fig. 5 is a perspective view of the under side of the stock or body of the spokeshave, showing also a metallic fitting therefor, a right-hand half of the latter being indicated as broken away and removed from its place of application on, and within, the stock, which is shown recessed for the reception thereof.

Similar characters of reference indicate corresponding parts in all of the views.

Referring to the drawings, A represents the knife or blade, and B the body or stock, having handles x x at its opposite ends, as usual, the said stock being intermediately provided with the usual throat-forming recess y and has a metallic fitting a, adapted to be inset into suitably-formed recesses in the stock therefor and to overlap the under or working-face side thereof and to constitute by its straight-edged portion a2 one boundary of the throat, adjacent which, more or less closely thereto, is the cutting edge x of the blade a. The said fitting a is preferably made as a metallic casting having, as shown in Figs. 1 and 5, ear-lugs w at its ends by which to screw it to the stock, and its inset portion v is formed step-shaped at each end, the one step s at the innermost plane having a tapped perforation t therethrough for the screw f penetrating from the front or upper side of the stock, which has its end in bearing against the inner face of the end lug b of the blade, and the more outwardly-disposed step u has a perforation r, which is screw-tapped, receiving therein the screw h for holding the clamping-plate g against the outer face of the end lug b of the blade.

The parts are originally constructed and relatively arranged so that when the inner face of the end lugs of the blade are practically in contact with the face of the inner step s the cutting edge x of the blade will not be outwardly beyond the under face of the throat-plate.

By loosening the screws h for the clamping-plates g the blade, with its end lugs b b, may of course be crowded bodily transversely and outwardly beyond the plane of the throat-plate, and this is done by inscrewing the screws f f, which penetrate through and beyond the face of the step s of the aforesaid metallic fitting, whereupon the screws h h are set again to confine the clamping-plates to hold the blade-lugs firmly in their adjusted positions as crowded by and in contact on the inner ends of the adjusting-screws f f. The said screws may by having their positions of contact, as indicated in Fig. 3, well toward the inner edges of the blade-lugs b b impart to the blade somewhat of a rocking movement for adjustment, or it may be a bodily-displacing action, the effect being to either swing the blade on a longitudinal axis back from the cutting edge to bring the location of the cutting edge more or less outward for the desired rankness of cut or to displace the blade outwardly without changing the direction of its plane for acquiring practically the same condition for any desired character of shaving.

Inasmuch as the adjusting-screws f f are repeatedly rotated either inwardly or outwardly for varying the rankness of the cut to be taken or made by the knife, and in order that the wood from which the stock of the tool is composed may not be gouged out by the screw-driver, annular cup-shaped and centrally internally perforated bushings m are inset into circular sockets within the upper sides of the stock, it being of course understood, however, that the threaded shanks of the screws f acquire their screw-threaded engagements in and through the portions of the metallic fitting, the inner sides of which constitute the aforesaid innermost steps s s.

This spokeshave may not only be most readily adjusted for any manner of shaving required, but the knife may be bodily transversely adjusted to give any desired width of throat-opening and to correspond with the wearing away at the cutting edge of the knife.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is —

1. In a spokeshave, the combination with the stock having a throat-recess and having step-formed supports endwise outside thereof, of the knife having end lugs adjacent the innermost steps, the clamping-plates adjacent the outermost steps and overlapping the lugs of the knife, the screws h h for confining the clamping-plates and the adjusting-screws engaging through the aforesaid innermost steps and contacting against the inner faces of the knife-lugs, for the purposes set forth.

2. In a spokeshave, the combination with the stock having the throat-recess and the metallic throat-plate constructed with the stepped portions s and u, let into the body of the stock and having the screw-holes t and r, of the knife a having the end lugs b b the inner faces of which are arranged adjacent the faces of the steps s s, the adjusting-screws f f penetrating said stepped portions s s from the front of the stock and having their inner ends in engagement against the inner faces of the lugs, the clamping-plates g g facewise adjacent the steps u u and overlapping the outer faces of the lugs, and the clamping-screws h h, substantially as described.

3. In a spokeshave, in combination, the stock having the throat-recess and having the inset throat-plate provided with the end portions constructed with the steps s and u, the knife having the end lugs, the adjusting-screws and the bushings m, arranged relatively to the headed portions of said screws in sockets in the top of the stock, the clamping-plates g g and the confining-screws h h therefor, arranged as shown.

Signed by me at Springfield, Massachusetts, in presence of two subscribing witnesses.

JOHN H. SPEAR.

Witnesses:
WM. S. BELLOWS,
A. V. LEAHY.