US1172828A - Power-plane. - Google Patents

Description

J. G. oseoon & F. w. BACHMAN.

I POWER PLANE. APPLICATION FILED OCT-'12, I914- RENEWED JULY 15, l'9l5- 1 72,828. Patented Feb. 22, 1916.

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JOSEPH G. OSGOOD AND FRANK W.;IBACHMAN, OF CINCINNATI, OHIO, ASSIGNORS To SAID OSGOOD, TRUSTEE.

POWER-PLANE.

Specification of Letters Patent.

Patented Feb. 22, 1916.

Application filed October 12, 1914, Serial No. 866,394. Renewed July 15, 1915. Serial No. 40,123.

To all whom it may concern:

Be it known that we, JOSEPH G. Oscoon and FRANK W. BACHMAN, both citizens of the United States, both residing at the city of Cincinnati, in the countyof Hamilton and State of Ohio, have invented certain new and useful Improvements in Power- Planes, of which the following is a specification. Y

- Our invention belongs to that class of power planes which are hand operated.

One man canfoperate the plane efficiently and do the work accurately and effectively. Our invention is cheap of manufacture,

simple in construction and highly eflicient. vin use, and it consists essentially in a base plate or supporting bed, carrying a cutter,

a motor, adjusting means for the cutter,

- and connecting parts, and handles.

can be cut with any mrdinary cutter as shown in the plane, an endwise maple block would need a rasp or toothed bar, and still other woods, other forms of cutters.

The cutters we employ are preferably circular or cylindrical in contour and are made with blades, burs, rasping surfaces or the, equivalents thereof, so that the surface operated upon is cut or rasped off leaving a uniform and smooth surface.

In the accompanying drawing forming part of this specification, Figure 1. is a plan view of our new plane, Fig. 2, is a side view of one side of the plane, Fig. 3, is a longitudinal section of the plane, taken at line 3-3 of Fig. 1; Fig. 4, is a side view of the plane, being the opposite side to the.

one shown in Fig. 2, and Fig. 5, is a de tached-partly sectioned, broken away view of details for raising and lowering the cutter, on line 5-5 Fig. 1.

The bed plate or base of the plane is preferably 'made of a casting having a bottom 1 and sides 2-2, the bottom having a slot 3. This bed plate may be made .of any material and be of any desirable shape or contour. On the bottom 1, we connect atpoints 4 (see Fig. 3), a motor 5 of any approved form or construction. Power can be transmitted to the motor in any of the ordinary ways, as 'through electric wlres, not shown; any other motive power may, however, be ,used to operate the motor. The motor 5 has a shaft 6, at one end of which is carried a gear wheel 7, which meshes with a large gear 8 on shaft 10, which in turn meshes with a gear 9, on shaft 12, at one end of the cutter 13. The cutter 13 is, at each side, formed into a short shaft like end 12.. The cutter works in the slot 3 in the plane bottom and can be lowered or raised to make cuts of varying depths on the surface on which it is operatmg.

We Will now describe the mechanism for raising-and lowering the cutter to enable it to make cuts of varying depths? Weprovide a yoke 15 carrying at each side at its ends an eccentric bushing or journal 16, keyed thereto by key 17. The eccentric bushes 16 are supported or journaled in boxing 18 of any suitable form and the shaft 12 of cutter 13 is eccentrically journaled in the bushings 16. In the bottom 1, at point 20 we rigidly connect a" screw 21. On the 'yoke 15 we provide short rearwardly extending arms 22-22.

A thumb nut 23 works up and down on the screw 21. This nut 23 has a circular slot or groove 19 into which the pins 24-24 extend, sothat' when the nut 23 is screwed down, the pins willmove down with the said nut 23 and when the nut is screwed up, the pins will move up with said nut, thus lowering or raising the nut 23, also lowers or raises the pins 24-24 with it and the pins being connected to the arms 22-22 lower or raise them, and they being made integral with the yoke 15, which at its extended ends carries the eccentric bushings 16, turns said bushings in the journal boxes 18, thus also carrying the cutter 13, which is journaled in said bushings, around with said eccentric bushings, thus varying the eccentric point, where shaft 12 is journaled in said bushes, away from or toward the slot 3 in thebed plate 1 and. consequently brings the cutter 13 away from or farther down in the said slot to make a cut of less ;or greater depth. At

the front of the frame we provide standards tance, We-provide a handle 28, which weconnect to the motor casing in any approved way, (see Fig. 4).

The knives on the cutter are marked 30. These knives may be of any form or size and arranged around the cutter 13 in any desirable manner. We may use a rasp, a burred bar or sanding tool in place of cutter 13, and may use it for any kind of work, cutters of varying contour; being employed) for diflerent kinds of work for which they 20 are best fitted.

What we claim as new and our invention and desire to secure by Letters Patent is:

'In a plane of the character described, a

bed plate provided with a slot and with outer side walls, a circular cutter operating in. said slot, a yoke provided at each side with bushings journaled in saidwalls over said slot, the circular cutter being journaled eccentrically in the said bushings between their axis and said slot, and means connected with the yoke for oscillating the said bush- I ings, carrying the circular cutter with them,

to raise and lower the latter.

Executed at Cincinnati, Hamilton county,

day of October, 1914.

JOSEPH G. OSGOOD. I V FRANK W. BACHMAN.

Witnesses:

L. M. DUNLAP,

JOHN W. STREHLI.

Ohio, this 9th

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