US187712A

US187712A - Improvement in miter-boxes

Info

Publication number: US187712A
Authority: US
Publication date: 1877-02-27
Anticipated expiration: 1894-02-27

Description

- NITED STATES PATENT EEIOE RIGHT TO HENRY WARREN HOWE, OF SAME PLAGE.

IMPROVEMENT IN MITER-BOXES.

specification forming part of Letters Patent N0.i1s7,712,dated February 27, 1817 application ined August 23, 1876.

To all whom it may concern:

Be it known that I, JAMES M. JONES, of

Lawrence, in the county OfDouglas and State' of Kansas, have invented a new and useful Improvement in Miter-Boxes, of which the following is a specification, reference being had tO the accompanying drawings.

This invention relates to an improvement in miter-boxes,and consists in the mechanism hereinafter specifically designated, its object being to provide an adjustable device for mitering purposes.

Figure is a plan view of a device embodying the elements of the invention. Fig. 2 is a rear View of same. Fig. 3 is a central vertical transverse section of same.

In the accompanying drawings, A represents a bed-plate or base resting upon the cleats B, and provided On its rear end with the backing D, which is provided at about its vertical center with the slot E, adjacent to which the bed-plate A is cut away to receive the plate or stand F, secured in position by rivets or set-screws passing through elongated apertures or slots formed in the lugs H, so

'that the plate can be slightly raised or lowered, as occasion requires.

The bed-plate A may be .Of any suitable configuration, but it is preferred to have the contour-of the front edge either oval or circular, as by the use of' this form the adjustable shoes Or clampsI can be more readily brought to line with "the swiveled rollers L, and thus facilitate the Operator in obtaining the desired l angle.

j placed a suitable distance apart, and provided With the roll-ers L. These rollers are loosely mounted upon the standards V, so as to have a rotary movement thereon, and thus facilitate the passage of the saw between them.

The clamps I are secured at suitable points upon the front edge of the bed-plate A by the set-screws a and lips b, and are provided with the slots d, which are cut in the upper lip b,

so as to prevent the saw from becoming inany suitable point opposite the rollers L to Obtain the angle desired, the other two clamps being furnished more for convenience than positive requirements.

The standards V, being rigidly secured upon the swivel N, the rollers L may be turned so asto face either of the rollers e, and thereby permit the saw, when in Operation, to be placed inv the space between the rollers L and rollers e, thus preventing it from making an 'untrue or improper cut in the material placed on the bed A between the rollers e and backing D.

In the slots or grooves f out in the bedplate A are provided the apertures h, in

which pins may be driven and replaced for e the purpose of preserving the bed-plate from the eii'ects'of the saw.

What I claim as my invention, and desire to secure by Letters Patent, is-

The slotted clamps I, provided with the standards W and rollers e, in combination with the stand F, swivel N, provided with the standards V and rollers L, and bed-plate A, all constructed to operate in the manner shown and described, and for the purpose specified.

In testimony that I claim the foregoing improvement in miter-boxes, as above described, I have hereunto set my hand this 9th day of August, 1876.

JAMES MQ JONES.

Witnesses:

THOMAS H. KENNEDY, JOHN P. Ross.