US290164A - Hezekiah weight - Google Patents

Description

(Noy Model.)

H. WRIGHT. SHINGLE SAWING MACHINE.Y

No. 290,164'.` Patented Deo. 11

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t 1 UNITED STATES irEZEKIAH WRIGHT,-

sHlNcLE-SAWWG MACHINE.

l' PATENT @O'rnfi'cn..

Vor Avn, NEW YORK. j

SPECIFICATION forming part oflLetter's PatentNo. 290,164, dated December 11,1883.

A Application filed July 28, 1883. (No model.)

To @AZZ whom, t may concern,.-

Be it known that I, HEZEKIAH lWuieirfr, a

4citizen'of the United States, resident at Ava,

in the county of Oneida land State of New York, .have invented certain new and useful Improvements in Shingle-sawing 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 apart of this specification.

Figure 1 of the drawings is a representation of top view. 3 is an end view. Figs. 4, 5, 6, and 7 are detail views. Fig. 8 is a detail viewof my device, showing the means for,4 tilting the shingie-block holder.-

. This invention has relation to shingle-machines; and it consists in the construction and novel arrangement of devices, as will be hereinafter fully described, and particularly pointed out inthe claim appended.

Referring by letter to the accompanying drawings, a designates the frame of the machine, provided with a bridge-tree, b, between its lower cross-rails, cl c. A squarebox, d, is

secured in a recess in the upper face ofthe bridge-tree b, near one end thereof, and With- Y in it is placed anadjustable seat, e, provided with a single set-screw, c', for adjusting it. In this seat the lower end of the'l saw-arborf is stepped, the saw f being secured to the upper end of the arbor and revolving in a hori Zontal plane above the frame a.

g designates a ti ghtening-pulley, placednear the other end of the frame, having its journalbearings in sliding blocks h and h','the former working in guides t', secured to the bridge-tree, and the latter in guides i', secured to the under faces of the top rails of thev frame a. The sliding blocks h l1. are provided'with internal nuts, 7c and 7c', respectively, through which threaded'crank-rods Z Z', encircled by springs Z2 Z, work to adjust the slidingblocks and thereby tighten or loosen the pulley g, as may be necessary.

VThe saws used in this machine are made with gage No. 10 at and from the center out- Fig. 2 is a vertical section. Fig.

tapered-to gage l5 on the edges.

' At thevtop' of the frame, and at one side thereof in front of the saw, is a shingle-block bed, m, which is pivoted between two verti- Ways m2 m`z in the frame and the short rail mi. Thesearms m 'm' are adjusted and held by pinch-nuts or screw-cranks n n. A spring, o, is connected to a springpiece, o', on the under side of the shingle-block bed, tothe right of the axial line of the pivotal points and eX- tends to the left, and is connected to the under side ofthe central cross-beam, o2. This spring o is intended to `hold the right-hand end of the bed m down upon the point of the screw-crank p, by which-that endof the bed bearing in a threaded block, p', extendinginwardly from the end rail of the frame at then right-hand end of the frame.

A fourth screw-crank, p2, has its bearing Iin the spring-piece o', near its right end, the point of the screw p2 bearing against the unjusting the spring-piece o', to cause its point to engage a four-point Wheel, q, on the innerend of a shaft, g', having bearings .in the un-A der face of the end rail at that end of the frame. On the outer end of the shaft q is a Wheel, 1', having eight teeth. By adjusting the shingle-block bed m the thicknessV of the shingles may be regulated. The'four-point and eightftoothed wheels, when operated, tiltV the shingle-blockbed m from butt to point, to give the requiredbevel to the shingles'as they are cut from the block.

A designates l the carriage, by means of whichthe shingle-block is fed to the saw. This carriage'is pivoted by its arln A to a stud at the left end of the frame a, andA is provided at its other end with wheels B B, which travel on aattrack, C, at the right end of the frame a, said'track C being adj usted ver' tically at its rear end by a crank-screw, D, so that the track may be given the necessary inclination from front to rear, togive the transverse incline to the surfaceof the shingle. The shingle-block is held in place in the carriage-frame by the dogs E andjF, the; former being stationary, while the latter slides in der Vface of the bed m, for the purpose of ad- Y l wardlyten and fiveleighths inches, and thence -cally-adjustable slide-arms, m m', working in m is adjusted, the screw-crank p having its IOO ways G on the. under face of the carriage- 'frame. A spring, H, holds the sliding dog F in its normal position at the right end of the carriage-frame, and straps I connect its ends to a shaft, J, having bearings on the frame at the left end. This shaft J is provided with an adjustable crank, K, by which the shaft J is turned to draw the dog F into engagement with the end of the shingle-block. Vhen the shingle has been cut and the carriage returned toits place over the bed m, the dog E is released, the block drops on the bed m, which has been tilted by a pivoted dog, L, on the outside of the end rail of the carriage, engaging one of the teeth of the eight-toothedwheel o', and thereby turning the four-point wheel q, which alternately engages the point of the spring-piece o and a recess, o, therein, so that the ends of the bed m are alternately elevated and depressed, which operation causes the butts of the shingles to be cut alternately from opposite ends of the shingle-block, thereby making a considerable saving in the amount of timber used over the waste entailed where the butts are all cut from one end of the shingle-block.

A handle, M, is provided at the front ofthe end rail of the carriage, by which the carriage is made to travel back and forth in its track.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a shingle-machine, the combination, with the frame a, of the vertically-adjustable shingle-block bed m, pivoted between its adjusting slides, and provided with a pivotedand recessed spring-piece, o', of the spring o, the four-point wheel on the shaft q, the eighttoothed wheel on the outer end of said shaft, operated by the pivoted dog L on the carriage-frame to tilt the bed m alternately, the dogs E and F, the latter being provided with a retracting-spring and connected by straps to the rotary shaft J, and the Hat track C, rendered adjustable at its rear end by means ofthe threaded crank-rod D, substantially as specied.

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

HEZEKIAI-I VRIGHT. XVitnesses: WM. E. WRIGHT, CHARLIE EGG-ER.

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