US240737A

US240737A - Machine for cutting miters

Info

Publication number: US240737A
Authority: US
Publication date: 1881-04-26
Anticipated expiration: 1898-04-26

Description

-' (No Model.) 7 2 Sheets- -Shet 111 B. H. LEWIS. Machine for Cutting Miters.

1 No. 240,737. Patented April 26,1881.

".FEYERS P mMNOGFKAPHER. WAEHENGTON 0. C.

(No Model.) ZSheets-Sheet 2. B. H. LEWIS.

Machine for Cutting Miters.

NPETERS. FHOYO-UINOGRAFNER. WASHINGTON. I v C4 No. 240,737. Patented April 26,1881.

' UNITED STATES PATENT OFFICE.

BENJAMIN H. Lewis, on CORAL, MICHIGAN.

MACHINE FCR C U'l'TlNG MITERS.

SPECIFICATION forming part of Letters Patent No. 240,737, dated April 26,1881.

Application filed October 18, 1880. (No model.)

To all whom it may concern:

Be it known that I, BENJAMIN H. Lnwrs, of Coral, in the county of Montcalm and State of Michigan, have invented an Improvement in Devices for Cutting Miters, of which the following is a specification.

The nature of this invention relates to certain new and useful improvements in machines for cutting miters at any desired angle, by means of which the necessary angle can readily be determined, and by which an angle with a rake can be readily cut.

The invention consists in the peculiar construction of the various parts and their combinations, as more fully hereinafter described.

Figure 1 is a perspective view of my improved machine. Fig. 2 is a vertical section through the extended wing-guides. Fig. 3 is a vertical section on line 00 as, Fig. 1. Fig. 4. is a plan of the top of the bed.

In the accompanying drawings, which form a part of this specification, A represents the base or bed of the device, to which the operating parts are secured.

B represents two rectangular frames, which are secured in parallel positions, as shown, to the base by means of the angle-irons a and suitable screws. Between these two frames the gate 0 has a vertical motion, the frames acting as guides therefor.

To each side of the girt D'is secured a downwardlyprojectin g guide, b, which embraces the sides of the saw midway between the two endsof the gate, to act as guides to prevent the saw frombuckling. The saw E is of uniform thickness and without a back, and has near its upper edge, and parallel thereto, slots 0, which, engaging with stops cl, secured to the front and rear ends of the gate 0, secure the saw to the gate without interfering with the reciprocation thereof. 1 F and F are two radially-swinging guides,

pivoted with a common pivotyc, to the bed A at a suitable point between the frames B, and

upon the plates H, while the inner ends of the guides rest upon suitable plates, K, which brings them toa level position.

Rising from the guides F F are the vertical standards L L, the former of which is provided with a suitable dog, M, capable of vertical adjustment by means of any of the well known devices. The standard L is provided with a rest, N, also capable of a vertical ad-' If it is desired to cut an ordinary miter, the

material to be operated upon is secured to the guides by the dogs M and 0, while the restN is elevated or depressed out.of the way, so that the work will rest snugly against the face of the guides. After the guide F or F has been properly adjusted to the miter or angle desired, the set-screw f is tightened, thus rigidly securing the guide to place A reciprocation of the saw, which is gradually depressed by the gravity of the gate 0, will sever the material presented to it.

To cut a rake the material to be operated upon, inaddition to the dogging hereinbefore described, is supported uponthe rest N, which is adjusted vertically so as to give the desired rake.

While I show two sets of guides, it will be seen that the device would be operative with but one, although with two much less handling of material is required, and for which last object I pivot the device at P to a support, so that it can be turned for the introduction of heavy work not easily handled.

I am aware that an adjustable rest or support for the material to be sawed at a rake or bevel, in connection with two guide-posts for a horizontally-reciprocating saw, said posts being mounted on and turning with a circular metal plate marked with radial lines, whereby the material may be sawed at any desired rake and any desired angle, has heretofore been employed, and I therefore lay no claim, broadly, to such construction, my invention being confined tothe details of construction, in which the saw-guides are stationary and the guides for the material are movable radially, whereby the circular movement of the saw-guides is dispensed with which is objectionable Where power is applied to operate the saw, as it requires an adjustment of the machine relative to the power every time the position of the saw-guides is changed.

What I claim as my invention is 1. In a mitering-machine, the combination with the stationary guides B and horizontallyreoiprocating saw E, of the radially-swinging guide F vertically-adjustable dog M, laterallyadjustable dog 0, and "ertically-adjustable 15 rest N, substantially as described, and for the purpose set forth.

2. In a mitering-inachine, the combination, with the radially-swin gin g guide F, of the vertically-adjustable dog M, laterally-adjustable 20 dog 0, and vertically-adjustable rest N, substantiall y as described, and for the purpose set forth.

BENJAMIN H. LEWIS.

Witnesses:

H. M. PATRICK, T. G. N ORTHRUP.