US240481A - Attachment for doweling-machines - Google Patents

Description

Ito Model.) I

P. WEBER & G. SCHABFER.

Attachment forDoweling Machines.

No. 240,481. Patented April 19,1881.

rETEnS. FMOTOJJTROGRAFHER. WASHlNG'TON. D. C

UNITED STATES PATENT OFFICE.

PETER WEBER AND GEORGE SOHAEFER, (AF MILWAUKEE, WISCONSIN.

ATTACHMENT FOR DOWELlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 240,481, dated April 19, 1881.

Application filed December 9, 1880. (No model.)

1' 0 all whom it may concern:

Be it known that we, PETER WEBER and GEORGE SGHAEFER, of Milwaukee, in the county of Milwaukee, and in the State of Wisconsin, have invented certain new and useful Improvements in Attachments for Doweling- Machines; and we do hereby declare that the following is a full, clear, and exact description thereof.

Our invention relates to doweling-machines and it consists in an attachment for supporting the pieces to be bored and adjusting them to the bits, as will be described hereinafter.

In the drawings, Figure 1 is a perspective view of our devices in position. Fig. 2 is a perspective view of our device with the movable portion thrown forward, and Fig. 3 is a like view of the stationary portion.

Our device consists of two parts, A and b. The part A has flanges a a, which rest on the table, and a beveled project-ion, (1 that catches slightly under the bed of the boringframe, and by these our device is secured to the table. We also provide the partA with lugs Q 0, upon which rest, respectively, the inclines d d of the part b. The part A is also perforated to receive a binding or set screw, e,which passes through the inclined slot in the part b. In the perspective view the parts a and b are insuch relation to each other as to support the piece to be bored at itslowest point. Therefore to raise the piece it is necessary to loosen the binding or set screw and shove the part 1) forward, when the bevels orinclines dd will ride up on the lugs c 0, and the part b will be elevated accordingly, to be secured in its adjustment by the binding or set screw 0.

Our device is simple and cheap, is capable of a greater range of adjustment than any otherin the market, as far as we have been able to ascertain, and maybe adjusted while the work is in place upon it.

We are aware that a work-supportin g attachmentfor sawin g-machiues has been constructed in two parts, one working on top of the other and held in position by a set-screw passed down through a groove in the upper part, which is also countersunk to receive the head of the screw; but we deem this construction objectionable, in that the device cannot be adjusted while the work is in position, and that is a more costly device, since the parts have to be fitted together by tongue and groove; whereas the parts of our device are of the most convenient shape for casting, and require no fitting afterward, coming out of the molds complete, with the sole exception of one perforation.

What we claim as our invention is- An attachment for doweling-machines, consisting of a stationary part, A, having side lugs, c c, and a movable part having inclines d d, resting on said lugs, and an inclined slot, in combination with a horizontal set or binding screw passing through said slot, by which the two parts are secured together, as set forth.

In testimony that we claim the foregoing we have hereunto set our hands this 3d day of December, 1880.

PETER WEBER. GEORGE soHAEFEE.

Witnesses S. S. STOUT, GUSTAV L. SGHAEFER.

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