US334247A - leffingwell - Google Patents

Description

(No Model.) l

J. G. LEPFINGWELL.

, y MITERING MACHINE.

No. 334.247.' 'Patented Jang-1 2, 1886;

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VIITERING-IVACHINE.

SPECIFICATION forming part of Letters Patent No. 334,247, dated January 12, 1886. Application filed September 21, 1885. Serial No. 177,734. (No model.)

.To all wwm it may concern:

Be it known that I, JOHN G. LEFFING- WELL, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Mitering Machines; and I do declare the 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 letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a representation of a side elevation, partly in section. Fig. 2 is a top or plan view. Fig. 3 is a part 0f an enlarged side elevation. Fig. 4 is a top or plan view of the wheel enlarged, and Fig. 5 is a sectional view of the same.

This invention relates to mitering-machines for making picture and other frames; and it consists in the construction and novel combination of parts, as will be hereinafter fully described, and particularly pointed out in the claims.

Referring by letter to the accompanying drawings, A designates the table or bed-plate, which is provided with the arc-shaped slots B B in its face and the arc-shaped scales G C upon its face. l The scales are the smaller arcs, and are graduated in inches and fractions thereof.

Risi ng from thetable or bed-plate are standards D D', the latter of which is provided with teeth E on its inner face, and these teeth E engage the teeth I of the anged wheel J, the teeth I being between the flanges J of the wheel J.

An eccentric pitman, K, is connected to one face of the wheel J, which is recessed for its reception, and is connected to said wheel by a wrist-pin, L, and the lower end of said pitman-rod is connected to a treadle, M.

Guides N are pivoted to the bed-plate, and are provided with eyes I), through which securing and adjusting bolts Q are passed, and hold the guides N to their adjustments. rlhe knives R R are arc-shaped knives, and are secured to the wheel J by screws T.

The pitman-rod is provided with a retracting-spring, S, which raises the treadle after it has been forced down,and returns it ready for further action.

A mitering machine constructed in the manner above described possesses many advantages over the constructions heretofore used. It will cut miters on wood in any shape from an angle to directly across the grain of the wood.

It may be used to cut hard tobacco and other materials, such as stalks, hay, and other er substances softer than wood.

'From the foregoing it will be observed that.

the mitering-machine may be used forv numerous other purposes besides cutting miters on wood.

By reason of the fact that I provide teeth in the standard and teeth in theiiange-shaped wheel by causing the wheel to revolve by forcing the pitman down by means of the treadle, I cause the iange -shaped wheel to rotate in coming down, and by this motion I get a rotary drawing cut, and therebycut any substance much more easily than by a direct cut, whether the knife be'bn an angle other than a right angle or at a right angle to the grain of the substance to be cut.

The machine may be constructed with two heads or wheels worked by two treadles working at the angle desired.

Having thus fully described this invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In a mitering-machine, the combination,

Vwith a toothed wheel, havingcutters and standards, one of which has teeth, the said wheel engaging the toothed standard, and adapted, when rotated, to travel along the same, substantially as specified.

2. In a mitering-machine, the combination, with a base or stand, of two opposite standards, one of which is provided 'with teeth, a wheel carrying cutters and teeth to yengage the teeth of the said standard, and a pitman-rod connecting the wheel, and a treadle to turn the said wheel, substantially as specilied.

8. The combination, with a base having stock-guides, of two opposite vertical stand- IOO ards, one of which has teeth, a wheel having teeth arranged between the standards, arcshaped cutters extending beyond the periphery of the wheel, a pitman connected eccen- 5 trically with the wheel, and a treadle connected with the pitmtn, substantially as specied.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN G. LEFFINGWELL.

Witnesses:

F. W. HOPE, T. H. ALLAIRE.

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