US369770A - James e - Google Patents

Description

MITBR ox.

IIIIIIII IIIIIIIIII (No Model.)

J. R. BREWSTER & O. E. WILLIAMS..

- view of the saw-back rest; Fig. 5, a detail per- 'ments in Miter-Boxes; and we do declare UNiTEn STATES PATENT @rricn.

JAMES R. BREWVSTER AND ORLANDO E. WILLIAMS, OF WINDSOR, VERMONT.

MITER-BOX.

SPECIFICATION forming part of Letters Fatent No. 369,770, dated September 13:, 1887. Application filed July 27, 1886. Serial No. 209,242. (No model.)

To all whom, it may concern:

Be it known that we, JAMES R. Bnnwsrne and ORLANDO E. WILLIAMS, citizens of the United States, residing at Windsor, in the county of \Vindsor and State of Vermont, have invented certain new and useful Improvethe following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked zhereon, which form a part of this specificaion.

The invention will first be described in con nection with the drawings, and then pointed out in the claim.

Figure l of the drawings is a perspective view; Fig. 2, a vertical sectional elevation; Fig. 3, a plan view. Fig. 4 is a perspective spective view of the top.

In the drawings, A represents the bed of the miter-box, preferably provided with three legs, a a a, of which the front one is perforated, so as to be fastened by a screw to a workbench.

B B are swinging arms, end pivoted on the same center, as shown in Figs. 1 and 2 of the drawings, or on different centers, as shown in Fig. 3.

b are end cams, by which the arms maybe fastened to the bed A, which may be a whole or a part circle, the latter being sufficient for the arms to swing forty-five degrees and be fastened.

O G are the saw-guides, and D D the posts in which they are held. The guides C are made in two pieces, as shown in the drawings, which, when placed together, form the sawback slot 0, the slot 0, which prevents the teeth from touching any part of the guide, and the slot 0 for the plate or body of the saw, while the teeth travel in the spaces 0. The two slots 0 c in the two guides are arranged diagonally opposite to one another, one guiding the upper part of saw-plate and theother the lower part thereof, just above the teeth. This more effectually prevents the blade from the saw-guides connected at getting at any part out of a perpendicular plane than if both were placed near the back or near the teeth. The screws 0% serve to keep the saw-plate perpendicular. The guides have a tenon, c and vertical grooves 0* 0, while the posts consist of a bar, d, grooved to receive the guide-tenon c" and riveted steel plates d d, extending over said groove toward each other, so as to hold the tenon 0 The bars d are provided with right-angled flanges d which are fastened to the bed A. Thus it will be seen that the posts are fixtures on the base,while the guides are held to the posts by a vertical tenou-and-groove joint, so that they may be readily detached or adj usted. The guides may be connected at the top bya horizontal bar, E, so that they may be moved up or down together and exactly the same distance; but it is not absolutely necessary, and may be omitted, as illustrated in Fig. l of the drawings.

F is a stop or rest for the saw-back, and has a longitudinal slot, f, through which passes the screw d which clamps it to the post D. By loosening this screw it may be adjusted on the saw-guide. This stop or rest has a short arm, f, at right angles thereto, and bent to conform to the shape of the guide; also at one side an arm, f bent at right angles to the plate and extending out sufficiently to support the saw-back.

Our posts I) require no fine fitting, and are easily brought to their exact perpendicular, while the guides allow the saw to be always kept in a perpendicular plane.

We thus make a moderately-cheap miterbox which will do perfect work and be little liable to get out of repair.

The primary object of the saw stop or rest is to barely allow the saw to pass through the.

material sawed without coming-in contact with the bottom of the miter-box. The saw-back comes in contact with the arm of the stop or rest, and is thereby stopped. By making the rest adjustable it is adapted to saws of different width and for sawing tenons or similar work, the rest being adjustable to stop the saw at any point.

What we claim as new, and desire to secure by Letters Patent, is-

In combination with a miter box bed and two vertical posts having vertical grooves, spaces 0 in which travel thesaw-teeth, as [o the two saw-guides having tenons reciprocatshown and described.

ing in said grooves, said guides having a top In testimony whereof we affix our signatures slot, 0, for the saw-back, narrow diagonallyin presence of two witnesses.

opposite slots 0, whose walls fit close to the JAMES R. BREWSTER. saw-blade, the one near the back and the ORLANDO E. WILLIAMS. other near the teeth, slots 0 in which travels Witnesses:

the body of the blade, the screws 0 0 arranged ARTHUR W. HARRIS,

to keep the blade perpendicular, and the WM. BATOHELDER.

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