US127373A

US127373A - Improvement in sawing-machines

Info

Publication number: US127373A
Authority: US
Publication date: 1872-05-28
Anticipated expiration: 1889-05-28

Description

CHARLES L. SCHULZ.

Improvement in Sewing-Machines..

.N0. 127,373. Patented May 28,172'.

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UNITED STATES CHARLES L. SCHULZ, OF BALTIMORE, MARYLAND. i

IMPROVEMENT IN SAWlNG-MACAHINES.

Specification forming part of Letters Patent No. 127,373, dated May 28, 1872.

Specification describing aV certain Improvement in Sawing-Machines, invented by CHARLEs L. SCHULZ, of Baltimore, in the A county of Baltimore and State of Maryland.

This invention relates to a machine mounted on a portable frame having a transportingwheel at 011e end and handles at the other; and consists in the combination, with the saw, of a movable weight, whose ofiice is to regulate the pressure of the saw; also, in the combination of the rodon which said weight moves with a swinging guide, to enablethe saw to be raised or lowered; also, in the combination, with said weight-rod, of aturn-hook, to enable the saw to be held up out of the way; and in the combination, with the frame, of an apparatus for holding the log while being sawn.

Figure l is a side elevation, and Fig. 2 is a plan view.

A is the frame aforesaid, the same having four legs, a, handles c, and a wheel, e, placed on anaxle, e. The journals of this axle enter recesses between forks t' on the ends ofthe side bars m of the frame A. Said journals are held in` said recesses by means of pins n. By removing the pins a, the axle e can be disengaged from the bars m, and the frame A let down on its legs a, which keep it steady during the process of sawing, whereas, if left on the wheel c, the frame would be very liable to tip during the progress of the work. O is the saw-frame, and 0 the saw. To the inner end of said frame a rod, 01, is pivoted, on which rod is placed a weight, 02, provided with a setscrew. This weight can be placed in any desired position on the rod for the purpose of causing the saw to bear more or less heavily on the wood, according to its nature, whether hard or soft, thus increasing the cutting capacity of the saw as may be required. The rod o1 passes through a guide, rf, supported in the standards r, which guide the pitman of the saw-frame. The guide r swings in said standards, thus enabling the saw to be raised when desired. When thus raised, a hook, h, swinging in the frame A, is turned over the rod o1, to keep the saw elevated out of the way. A lever, t, is pivoted to the frame A, so as to project over the crotch where the log lies. A rod, t, connects the longer arm of said lever with a crank, s1, in a shaft, s, mounted in the frame A above the lever. A handle, '32, projects downward from the end ofthe shaft s near the driving-crank x, by means of which handle the lever t can be made to clamp or release the log. The handle s2 works in connection with a ratchet, x', on the adjacent side bar m. The handles s2, crank a', hook h, and

weight o2, can all be operated from the same side of the machine.

I cla-ini as my inventionl. The combination, with the saw-frame O,

of the rod o1 and movable Weight 02,',as set forth:I

2. The combination of the saw-frame O, rod o1, swinging guide r', and standards r, as specified.

8. The combination of the saw-frame O, rod ol, frame A, and turn-hook h, as described.

4. The combination of the frame A, lever t, rod t', shaft s and handle s2, as explained.

CHARLES L. SCHULZ. Witnesses:

GEO. E. BROWN, A. BENDZ.