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Publication numberUS107413 A
Publication typeGrant
Publication dateSep 13, 1870
Publication numberUS 107413 A, US 107413A, US-A-107413, US107413 A, US107413A
InventorsDavid S. Sheaeee
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in mortising-machines
US 107413 A
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Description  (OCR text may contain errors)

UNITED STATES PATENT OinICE.l

DAVID S. SHEARER, OF WAUPUN, WISCONSIN.

IMPROVEMENT IN MORTlSlNG-MACHNES.

Specification forming part of Letters Patent No. 107,413, dated September 13, 1870.

To all whom it may concern:

Be it known that I, DAVID S. SHEARER, of Waupun, in the county of Dodge and State of Wisconsin, have invented a new and use ful Improvement in Devices for Cutting Lock- Bolt and other Mortises, of which the following is'a full, clear, and exact description, reference being had to the accompanying drawing, forming part of this specification, and in which- Figure 1 represents a side elevation of a hand mortising machine or device, constructed in accordance with my improvement; and Fig. 2 a section of the same, taken as indicated by the line w :c in Fig. l, showing the machine as adjusted to its work.

Similar letters of reference indicate corresponding parts.

My invention consists in a hand machine or device mainly designed to be used for cutting the mortises in the frame-work or division-pieces of bureaus and other articles, the same comprising a revolving cutter carried by a swinging yoke, which is adjustable along a slide-bar carried by a clamp that serves to hold the machine to its place. By this machine mortises for lock-bolts may be cut with the greatest ease, r'apidity, and exactness.

Referring to the accompanying drawing, A represents what may be termed the upper, and B the lower, piece of a clamp for holding the machine to the division-piece or wood in which it is required to cut the mortise.

To secure a steady hold and prevent the machine from turning when at work, said clamp is provided with two or more clamping-screws, C C, arranged to pass through the lower piece B at a suitable distance apart.

D is a yoke for carrying, in a transverse relation to it, the cutter-shaft F, on which is secured the cutter Gr, that is revolved by a crank or handle, H, made fast to said shaft.

This cutter G is formed of a series of segmental cutters, sharpened not only at their advance ends or noses a, but'also formed with beveling sides or cutting-edges b of graduallyincreasing depth from the noses of the cutters.

Such style of cutter I find Well adapted to perform the work designed for it, but a different construction of revolving cutter may be substituted.

The yoke D is hung upon a slide-bar, I, which is free to turn in bearings cc, arranged to project from the top piece A of the clamp.

J is a set-screw for holding the yoke i'n place on the slide-'bar after the cutter has been adjusted to cut the required mortise. On slackening said set-screw the yoke may be adjusted along the slide-bar I to gage the cutter to its work.

The cutter-shaft F has a screw at its one end to keep it from working endwise to prevent displacement of the cutter after it has been set to cut the mortise. The slide-har I is also restrained from working endwise.

After the machine has been securely clamped What is here claimed, and desired to be se-l cured by Letters Patent, is-

The combination of the swinging yoke D and revolving cutter G with the clamp A B and hinge-bar I, substantially as speciied.

DAVID S. SHEARER.

Witnesses:

C. S. 'KELsEY, J. O. BAKER.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7933829 *Oct 28, 2005Apr 26, 2011Intertrust Technologies Corp.Systems and methods for pricing and selling digital goods
US8355978Oct 27, 2005Jan 15, 2013Intertrust Technologies Corp.Systems and methods for pricing and selling digital goods
Classifications
Cooperative ClassificationB27F5/02, B23Q5/045