US40690A - Smith head - Google Patents

Description

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AM. FNOT-LITHD. C0. N.Y. (OSBURN E'S PROCESS) UNITED STATES PATENT OEETCE.

.SMITH HEAD, oF MILLERSBURG,PENNSYLVANIA.

MACHINE Foa SAWING LATI-is, PALINGS, a

Specification forming part of Letters Patent No. 40,690, dated November 24, 1863; antedated November 11, 1863.

To @ZZ whom, it may concern:

Be it known that I, SMITH HEAD, of Millersburg, in the county of Dauphin and State of Pennsylvania, have invented certain new and useful Improvements in Machines for Sawing Laths, Palings, &c.; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making part of this specification, in which- Figure lis a side elevation of a machine embodyingmyimprovements. Fig.2isafront end elevation of the same. Fig. 3 is a top view or plan of the same.

Similar letters of reference indicate corresponding parts in the several figures.

This invention consists in a novel arrangement of two serrated wheels and gravitatingframe, in which latter the shaft of said wheels is journaled, in combination with a stationary bed and circular saw for cutting slabs into bolts of a convenient size to be worked up into laths and palings.

It consists, second, in the combination of two or more saws secured equidistant apart on an upright shaft for cutting the bolt into the widths it is desired to have the laths or palings, with an adjustable head-block and two or more saws secured on a shaft placed at right angles to the shaft of the first set of saws, for giving the proper thickness to the laths or palings cut from the bolt, in combination with the headblock, all as will be hereinafter fully explained; and, third, in a novel device for feeding the bolt to the saws.

To enable others skilled in the art to fully understand and use my invention, I will proceed to describe its construction and operation.

A A represcntbed-pieces, resting on opposite sides of a stout wooden frame, B, which may be constructed in any suitable manner.

(l is a shaft, resting in boxes attached to the frame, on the inner side thereof, and having secured on each end one or more circular saws, which are adapted to revolve in openin gs made in the bed-pieces. These saws 0 P P receive motion from the main driving-shaft D through the medium of a belt, a, which passes over a pulley on said driving-shaft, D, and asmaller pulley on the saw-shaft C.

E is a counter-shaft, resting in boxes b c,

which are secured to the cross-piece d and upper end of standard e, respectively.

F is an oblong rectangular frame, provided at it supper end with boxes, in which the counter-shaft is loosely fitted, so asl to allow the frame at its opposite end, and in which the feed-mandrel G istted, to rise or fall, and thus to accommodate itself to the varying thicknesses of the slabs to be converted into" lath and paling bolts. The mandrel Gr has secured upon one end of it two serrated wheels, R R, which constitute the feed. These wheels are arranged so as to revolve one ou each side of the circular saw O, a sufficient space being leftl between them to avoid the possibility of injury to either the saw or wheels by one or other of them getting out of true. The counter-shaft E receives motion from the main driving-shaft D through the mediumof beltf, and imparts the same to the feed-mandrel and serrated wheels through belts g, said belts at each end passing over pulleys on the shafts which they connect.

H is a vertical shaftwhich runs'in a step, li, at its lower end, and in a box, t', near' its upper end. On the upper end of this shaft a number of circular saws, V V, are tted. These saws are separated from each other a distance corresponding with the width of the lath or paling desired to be produced by collars or annular disks interposed between them, and the whole is secured by a nut which clamps the saws and rings between it and a shoulder formed on the shaft. A belt, h, passing over a pulley on said vertical vshaft H, and a pulley 4on the main drivingshaft D, conveys motion from the latter to the former.

I is an adjustable head-block, provided with openings through which the saws protrude and revolve, attached to the bed-piece A by bolts passing vertically through slots formed in it into the bed-piece. These slots` render the head-block adjustable.

J is an upright shaft, stepped at its lower.

end in a slide, la, and resting at its upper end in a box attached to the cross-piece d. This shaft J receives motion from the countershaft E through the medium of belt m. Near the lower end of shaft J, and rigidly secured thereto, is a serrated' wheel, L, which constitutes the feed for the bolt. This serrated v entirely through it.

wheel is caused to grasp the bolt with more or less force, according as more or less pressure is exerted on the foot-lever N, by which it is advanced toward the head-block I. When in its normal condition, the slide k, and consequently the serrated wheel I1,vis withdrawn from the bolt by a weight, q, attached to one end of a cord, t', which passes over a pulley in the cross-piece s, and is attached at its opposite end to the slide lc.

o o2 03-04 (shown in Fig. 4) are a number of rollers of equal diameter, arranged on the inner side of the bedpiece, and connected together by short belts and with the main driving-shaft, so as to revolve with a uniform velocity.

The operation of my invention is as follows: The machine being put in motion, the slab, as it comes from the log, is placed upon the bedpiece A, and pushed up to the saw by hand until its front end comes in contact with the serrated wheels. Immediately they take it and feed it to the saw until the latter passes The frame in which the serrated wheels are supported is free to move up or down to accommodate the latter to thev varyin g thicknesses of the stuft' to be sawed.

After the slabs have been sawed into bolts, the latter are placed, one at a time, on the bedpiece A', and forced up to the rst set of saws by hand until the feed takes hold of it and car ries it through. The pressure of the serrated wheels against the bolt is regulated, as before mentioned, by the foot-lever. In the event vof the bolt being of greater thickness than the machine. is set to work up into laths or palin gs by once passing through, the refuse slides down the inclined plane beyond the saws onto the series of rollers, whence it is conveyed to the forward Vend of the machine, or where the operator is standing. If the refuse is of suflicient `size to form a lath or paling, it is run through the machine again.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, isv l. The serrated wheels R It, shaft G, and

gravitating frame F, in combination with the bed-piece A and circular saw O, when arranged to operate in the manner and for the. purpose specified. 2. The vertical shaft H, having two or more circular saws, V V, secured on its upperend, in combination with the adjustable head-block I and two or lnore saws, P I), secured on a shaft, C, placed at right angles to the shaft H, when arranged to operate in the manner and for the purpose specified.

3. The shaft J provided near its lower end with a serrated wheel, L, the slide k, and footlever N, in combina-tion with the head block Iwhen arranged to operate in the manner and for the purpose specified.

sMrrH HEAD.

Witnesses:

J AMES H. GRIDLEY, OcrAvIUs KNIGHT.

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