US1262601A - Hand gain-cutting tool. - Google Patents

Description

0. F.'O. ROYAL & E. E. THOMAS.-

HAND GAIN cumme TOOL. APPLICATION FILED AUG. T. 1917.

Patented Apr. 9, 1918.

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CHARLES 0. ROIZAL AND EDWIN E. THOMAS, 0F POR'lLAND,-OREGO1\T, ASSIGNOBS, BY

DIRECT AND MESNE ASSIGNMENTS, 0F ONE-HAZE T0 SAID ROYAL AND ONE-HALF 1'0 L. A. JACOBSEN, 0F PORTLAND, OREGON.

HAND GAIN-CUTTING rootneeaeoit Application filed August 7, 1917. Serial No. 184,919.

ting tools, and more particularly to a portable tool, especially adapted for cutting gains or notches in spaced timbers, into which are to be embedded connecting strips, or braces, for holding. said spaced timbers or ribs in fixed positions and for adding strength generally to'the structure in which said strips, or braces, are embedded. Our invention is especially well adapted for use in cutting gains, or notches, in the edges of the ribs of wooden vessels in order that strengthening strips or brace members may be 'set therein flush with the outer surface of said ribs, or timbers.

Among the salient objects of our inven tion is to provide a practical, portable hand tool of the character referred to. which can be used in various positions with the greatest convemence and with perfect safety to the workman using the same.

In order to more clearly-explain our in-.

vention, we have illustrated one practical embodiment thereof onthe accompanying sheet of drawings, which we Will now describe.

Figure 1 is a top plan view'thereof, with a portion of a motor shown in light dot and.

, dash lines; and

Formed as a part of said':yoke 2, is a supporting bracket 4:, in the bearing box 5 of which, is mounted a sleeve 6, keyed to the driving shaft 7, as -at 8, which extendsthrough. the combination hand grip and bearing sleeve 1. 'A beveledgear 9, issecured to said sleeve 6, and meshes with and drives a beveled gear 10, keyed on a shaft Specification of Letters Patent.

- well-known ways.

Patented Apr, 9, 1918.

11, having bearingsat its opposite ends, as

at 12-12, in the ends of the yoke 2.

Mounted on said shaft 11, at a space apart, are two circular saws 13-13, shown in dotted lines in Fig. 1, and one of which is geen in full lines in Fig. 2. Said saws may be mounted on the shaft in any of the Secured to the inner sides of the yoke 2, are saw guards 1a14 each' being held in .place over the saw by means of holding" bolts 15 and 16. By removing the bolt 16, the saw guard can be turned backwardly on the bolt 15, out or the way without the necessity of wholly detach-- ing it from the yoke 2; Mounted on the under side of said yoke 2, is a guide yoke,

or gage, 17, pivotally secured, as at 18,. to the opposite outer sides of said yoke 2, as clearly shown in Fig. 2, said yoke being provided with a slotted arm 19, on.each side thereof, whereby it can be adjustably secared to' the outer ends .of the yoke 2, as by means of thumb nuts 20-20. Said guide yoke 17, is slantingyor beveled, as-at 17',

at its outer end, whereby it can be pushedv easily over the edges of the -spaced ribs, or

timbers, on which the tool is being used, said guide yoke sliding across the edges thereof, from'one. to the other, sled-runner fashion, as the tool is pushed'along by hand. Thus it will be understood that the g5- saws 13-13 will cut notches, or gains, in

at which guide yoke 17, is set relativeto the saws.

While wehave indicated dash lines a pneumatic power mechanism P, it is to be understood that any motive power may be used for driving the power shaft 7 of our tool.

By providing a carryingv yoke 2, which is adjustable around the'end of the sleeve 1, said yoke and saws can beadjusted for use in. different positions without the necessity of turning the power mechanism, thus allow-- ing the weight thereof to always hang down directly beneath the axis thereof. Itwill be evident that as the carrying yoke 2 is turned about the end of the sleeve 1, the beveled gear 10, carried by the shaft 11, will simply roll around on the beveled gear 9, thus making it possible to turn the yoke 2,

on the sleeve 1, to anyposition" whatever,

90 in light dot-andspirit thereof, and we do not, therefore, limit the invention to the details as here shown,

except as We may be limited by the hereto appended claims forming a part thereof.

We claim:

1. In a hand tool,acombination hand grip and bearing sleeve adapted for manually supporting and operating said tool, a yoke mounted to be turned-to diiferent positions 'thereon,-a driving shaft mounted through said handgrip and bearing sleeve, a tool shaft mounted cross wise in said yoke at right angles to said driving shaft, driving connections from said driving shaft to said tool shaft, and spaced cutting tools mounted on said tool shaft and driven thereby,

2. In, a hand tool, a combination-hand grip and bearing sleeve adaptedfor manually supporting and operating said tool; a yoke mounted to be turned to different positions thereon, a driving shaft mounted through said hand grip and bearing sleeve,

a tool shaft mounted cross-wise in said yoke at right angles to said driving shaft, drivin connections from said driving shaft to said tool shaft, spaced cutting tools mounted onsa'id tool shaft and driven thereby, a

guide member adjustably mounted adjacent said cutting tools .for regulating the cutting "depth thereof, and aguard over said outting tools.

3IA hand tool of the character referred to comprising in combination a' bearing sleeve, a yoke mounted on' the end thereof and adapted to be turned to different positions thereon, a driving, shaft mounted through said'bearing" sleeve and said yoke, a 'beveled' gear driven by-said shaft, a saW shaft mounted crosswise in said yoke, a beveled gear secured thereto and in mesh with ,the beveled gear driven by said driving shaft, circular saws secured to said saw shafts at a space-apart, and guard members secured to said yoke over said saws, substantially as described. 1

l. A hand gain-cutting tool of they character shown and described, comprising a combination hand grip and bearing sleeve, ayoke adjustobly secured to the'end thereof and adapted to be turned to different positions and provided with a bearing bracket therein, a driving shaft mounted throughsaid sleeve and said bearing bracket, a beveled gear mounted on the end thereof, a saw shaft mounted transversely through said yoke, a beveled gear secured thereto and in mesh With the beveled gear driven by said drivlng shaft, circular saws secured to said saw shaft at opposite sides of, said beveled gears, saw guards secured to said yoke and overlying said saws, and a guide member adjustably secured to said yoke adj acent said saws for regulating the depth of the .cut of said saws, substantially as described.

Signed at Portland, Multnomah county, Oregon, this 31st day of July, 1917.

CHARLES F. 0, ROYAL.

, EDWIN E. THOMAS.

In presence of i I. M. GRIFFIN.

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