US171953A

US171953A - Improvement in wood-splitting machines

Info

Publication number: US171953A
Authority: US
Publication date: 1876-01-11
Anticipated expiration: 1893-01-11

Description

1 12mm. WOOD-SPLITTING MACHINE.

No 171,953, Patented Jan.11,18'7 6.

' Fig.2.

NPETERS. FHQTO-UTHOGRAPHER, WASHINGTON. D C.

UNITED STATES PATENT @FFIC'E.

FRANKLIN RAND, OF MEDFORD, MASSACHUSETTS.

IMPROVEMENT IN WOOD-SPLITTING MACHINES.

Specification forming part of Letters Patent No. 171,953, dated January 11, 1876; application. filed December 9, 1675.

To all whom it may concern.-

Be it known that I, FRANKLIN RAND, of Medford, of the county of Middlesex and State of Massachusetts, have invented an Improvement in Wood-Splitting Machines and do hereby declare the same to be fully described in the following specification, and represented in the accompanying drawings, of which- Figure 1 is a top view, Fig. 2 a transverse section, Fig. 3 a side view, and Fig. 4 a longitudinal section, of it.

My invention relates to the combination of a reversible tray with an intermittently-moving carriage and knife, provided with mechanism for operating them, as hereinafter explained. V

In the drawings, A denotes the frame for supporting the operative parts, it being provided'with horizontal and parallel ways B B, and a carriage, (J, to slide rectilinearly therein. Resting on the carriage, and between the two ways B B, is a tray, D, for receiving the blocks of wood to be cut or split into what is termed, kindling. This tray is square in horizontal section, to enable it to be turned about, so as to cause the knife, after having made a series of parallel cuts, to cut at right angles therewith. This knife is shown at E as fixed to a lever, F, pivoted near one end of itto the frame, and at the other to a rod, G, which at its lower end is pivoted to a slide, H, arranged within a vertical grooved guide, I, secured to the frame. A rod, K, is pivoted to the slide, and to acrank-wheel, L, fixed on a shaft, M. The said shaft, arranged as shown, has a gear, a, to engage with a pinion, b, fixed on a driving-shaft, N, all being as represented;

While the driving-shaft is in revolution, a reciprocating vertical motion will be imparted to the knife. The slide H, guide I, and the upper of the connecting-rods G H serve to keep the knife-carrier in a vertical plane, or from being drawn laterally against its guides, so as to be worn thereby, and increase the friction of its operation.

In order to feed the carriage forward with an intermittent movement, there is fixed to the said carriage, on its under side, a toothed rack, b, to engage with a lever-pawl, c, pivoted to a triangular piece or lever, d, that is pivoted to the frame A. The longer arm of the pawl-lever is heavier than the shorter one or pawl, in order to force the latter up to the rack. The part d is pivoted to a rod, 6, connected with the collar f of an eccentric, g, fixed on the shaft M.

Furthermore, there is extended along underneath the longer arm of the pawl-lever a shaft, it, supported in bearings it. This shaft has a small arm, k, projected from its middle, and it also has an arm or handle, 1, extended from one end of it, and up within a stop-piece, m, all being and arranged as represented.

By means of the shaft h and its arm and handle, the front lever may be moved and kept out of engagement with the rack, in order for the carriage to be drawn back, when necessary, by manual power applied to a handle, 0, projecting from such carriage.

In operating with the machine, the tray is first to be charged orfilled with short pieces of wood set up endwise in it, after which, the driving-shaft being in revolution, the carriage, with the tray, will be intermittently ad-- vanced, the knife being depressed upon, and raised from, the charge duringeach intermission or period of rest of the said carriage. After the carriage may have been moved to the extreme limit of its advance, it should be retracted, and the tray should be turned around,

a so as to cause the cuts in the wood to beat right angles with the knife. Next, the'carriage should be advanced as before. These operations will cause each of the blocks of wood to be reduced to smaller pieces, and each of them afterward to be reduced or cut into several pieces.

I claim-- The reversible tray D, in combination with the carriage G and knife E, provided with mechanism for operating them, as specified.

FRANKLIN RAND. Witnesses: V

R. H. EDDY, J. R. SNow.