US821094A - Implement for laying out miters and octagons. - Google Patents

Description

I No. 821,094.

PATENTED MAY 22, 19%.

P. L. FOX.

IMPLEMENT FOR LAYING OUT MITERS AND OGTAGONS.

APPLICATION FILED JAN. 15, 1906.

INVENTOR WITNESSES ATTORNEY PATENT @FFTCE.

PHILO L. FOX, OF BRIDGEPORT, CONNECTICUT.

IMPLEMENT FOR LAYING OUT MITERS AND OCTAGONS.

Specification of Letters Patent.

Patented May 22, 1906.

Application filed January 15, 1906. Serial No. 296,048.

To all whom it may concern.-

Be it known that I, PHILo L. FOX, a citizen of the United States, residing at Bridgeport, in the county of Fairfield, State of Connecticut, have invented a new and useful Implement for Laying Out Miters and Octagons, of which the following is a specification.

This invention has for its object to provide a simple, inexpensive, and compact implement consisting, essentially, of a sliding blade and an adjustable handle for laying out miters and octagons, so calledthat is, figures having sides at angles of forty-five and sixtyseven and one-half degrees, respec tively, to a base-line. With these ends in view I have devised the simple and novel implement, of which the following description, in connection with the accompanying drawings, is a specification, reference characters being used to indicate the several parts.

Figure 1 is a plan view illustrating the use of my-novel implement in laying out a miterthat is, a line at an angle of forty-five degrees to a base-line; Fig. 2, a plan view with the handle partly broken away, illustrating the use of the implement in laying out an octagon-that is, a line atan angle of sixty-seven and one-half degrees to a base-line, or one side of an eight-sided figure; and Fig. 3 is a section on the line 3 3 in Fig. 1.

My novel implement comprises a blade 10, having a longitudinal slot 11, a triangular handle 12, in which the blade is adjustable longitudinally, and means for locking the blade to the handle after adjustment.

13 denotes the base of the handle. The essential feature of the handle is that it is provided with a miter face 14 and an octagon face 15that is to say, with a face 14 lying at an angle of forty-five-degrees to the base 13 and with a face 15 lying at an angle of sixty-seven and one-half degrees to the base. At the angle of the handle formed by the intersection of the miter face and the octagon face is a slot 16, lying intermediate the sides of the handle and parallel therewith. This slot receives the blade, the edge of the blade resting against the bottom of the slot, which is parallel with the base 13 of the handle, so that the edges of the blade will lie at an angle of forty-five and sixty-seven and one-half degrees, respectively, to the miter and octagon faces of the handle.

17 denotes a hole in the handle which intersects slot 16 at right angles to the base of said slot and extends from the outer face or faces of the handle to an opening 18 therein, the wall of said opening contiguous to slot 16 lying parallel with the bottom of said slot.

19 denotes a locking-rod, which is threaded at one end, as at 20, is cut away on one side, as at 21, to receive the portion of the blade below the slot, and is provided at the end. opposite to the thread with an undercut head 22, which is adapted to be passed through the slot in the blade, the undercut face of the head then engaging the lower wall of the slot in the blade.

23 denotes a knurled nut which engages the threaded end of the locking-rod. and the inner face of which bears against the wall of opening 18 in the handle, so that when the nut is tightened up against the wall of the opening the blade will be drawn inward, the lower edge of the blade engaging the bottom of the slot, and thus locking the blade securely in place.

1 The operation will be readily understood from the drawings. WVhen the implement is to be used in laying out a miterthat is, inclicating a line at an angle of forty-five degrees to a baselineit is simply required to lay the miter face 14 of the handle against a baseline, as indicated in Fig. 1, in which the line of a base is indicated by a dotted line. Both edges of the blade will then lie at an angle of forty-five degrees to the base-line. For a longer or shorter miter the blade may be ad-' justed to any convenient position by simply loosening the nut slightly, which will unlock the blade and permit it to be moved in either direction freely. WVhen in the desired position, it is locked there by tightening up the nut again.

For laying out an octagon angle-that is, an angle of sixtyseven and one-half degrees to a base-lineor one side of an eight-sided figure the operation is precisely the same, except that the octagon face 15 of the handle is laid against the base-line, as clearly indicated in Fig. 2. Both edges of the blade will then lie at an angle of sixty-seven and onehalf degrees to the base-line.

Having thus described my invention, I claim 1. An implement for laying out miters and octagons comprising a handle having a base, a face at an angle of forty-five degrees thereto, and an octagon face at an angle of sixty seven and one-half degrees to said base, and

at the intersection of said faces a slot lying parallel with the sides and the bottom of which is parallel with the base of the handle, a blade in said slot and means for securing the blade at any desired longitudinal adjustment.

2. An implement for laying out miters and octagons comprisin a handle having a base, a face at an angle of forty-five degrees thereto, and an octagon face, at an angle of sixtyseven and one-half degrees to said base, and at the intersection of said faces a slot lying parallel with the sides and the bottom of which is parallel with the base of the handle, a blade in said slot itself provided with a longitudinal slot, a locking-rod in the handle having a head engaging the wall of the slot in the blade and a nut whereby the blade is locked in place.

3. An implement for laying out miters and octagons comprising a handle having a base, a face at an angle of forty-five degrees there to, and an octagon face, at an angle of sixtyseven and one-half degrees to said base, and at the intersection of said faces a slot lying parallel with the sides and the bottom of which is parallel with the base of the handle, a blade in said slot itself provided with a longitudinal slot, and a locking-rod threaded at one end, cut away on one side to receive the portion of the-blade below the slot and having an undercut head engaging the slot, and

a nut on said rod by which the blade is locked in place.

4. An implement for laying out miters and octagons comprising a handle having a base, a face at an angle of forty-five degrees thereto, and an octagon face at an angle of sixtyseven and one-half degrees to said base, at the intersection of said faces a slot lying parallel with the sides, and the bottom of which is parallel with the base of the handle, an opening in the handle having a wall parallel with the bottom of the slot, and a hole intersecting the slot and the opening at right angles thereto, a slotted blade in the slot in the handle, a locking-rod in the hole having an undercut head engaging the slot in the blade, and a nut on the rod adapted to bear against the wall of the opening to lock the blades at any desired adjustment.

5. The combination with a handle comprising a base and faces at angles thereto of forty-five and 'sixty-seven and one-half degrees respectively, of a blade and means for adjustably securing the blade to the handle at an angle of forty-five and sixty-seven and one-half degrees to the faces respectively.

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

PHILO FOX.

Witnesses:

A. M. WOOSTER, S. W. ATHERTON.

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