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UNITED STATES PATENT OFFICE.
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JOHN JENNINGS, JR., OF NATICK, MASSACHUSETTS.
IMPROVEMENT IN SPOKESHAVES.
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Specification forming part of Letters Patent No. 33,589, dated October 29, 1861.
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To all whom it may concern:
Be it known that I, JOHN JENNINGS, Jr., of Natick, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Heel or Spoke Shaves; and I do hereby declare the same to be fully described and represented in the following specification and the accompanying drawings, of which —
Figure 1 is a top view, Fig. 2 a bottom view, and Fig. 3 a rear side elevation of a heel or spoke shave provided with my in vention. Fig. 4 is an under side view of the stock as it appears without its knife.
In the drawings, A is the stock, and B the knife, the latter being constructed witli two tangs a, a to pass through the stock. Generally the knife-tangs pass through the stock and are secured by the friction of the wood, in which case, after a while, the reception-holes become so much worn as to render it difficult to preserve the cutting-edge of the knife at its proper or desirable distance from the throat-piece b.
In making the stock I not only construct it with two tang~holes c, c, but through each tang-hole, and so as to diverge in opposite directions from it and parallel or about so to the rear side of the stock, I run or make a saw-kerf or long slit d, the same being as represented in the figures. A screw e is passed transversely through each of the said kerfs, and is screwed into that part of the stock which is in front of the kerf. Consequently when the screw is turned up so as to force its head against the stock the wood thereof will be so sprung that a firm grasp on the adjacent knife-tang may be secured. Thus as the tang-hole may become worn by movements of the tang produced by the occasional adjustment of the knife I have a means of adjusting the tang-hole or rendering it smaller.
I do not claim the application of either wedges or metallic clamps to the stock and the tangs of the knife in order to fasten the said tangs in place in the stock. My improvement has advantages oversuch, and, besides, it materially cheapens the construction of a heel or spoke shave.
I am aware that it is not new to confine the tangs of a spokeshave in place in the stock by means of screws passing transversely into metallic projections extended from the stock, the ends of such screws bearing directly against the tangs extending longitudinally through such projections. Therefore I do not claim the broad ground of confining the tangs in the stock by means of screws; but
I claim —
Tlie improved stock as made with kerfs d, dl, arranged within it and with respect to its tang-holes c, c and to receive screws, substantially in, manner and for the purpose as specified.
JOHN JENNINGS, JR.
Witnesses:
R. H. EDDY,
F. P. HALE, Jr.
