US95296A - Improvement in machine for making shingle-bolts - Google Patents

Description

` DANIEL E. WHITNEY, or BLAoK nook, NEW YORK, AssreNoE To IEA r. BATEA- wAY, AUGUSTUS E. BAETLETT, AND enoEeE Mouais, oEEAsT sAciNAW, MIGHT-- GAN.

LettersPctcntgNo. 95,296, dated September 28, 1869.

IMPROVEMENT IN `MACHINE FOR MAKING SHING-LE-BOLTS.

The Schedule referred to these Letters Patent and making part of the same` To 'whom it may concern:

Be it known that I, DANIEL H. WHITNEY, of Black Rock, in the county of Erie, and State of N ew York, have invented a new and useful Improvement in Shingle-Bolting-,Machines; andzI do declare that the following isa true and accurate description thereof', reference being had to the accompanying drawings, and to the letters of reference marked thereon, being a part of this specification, in which- Fignre 1 is an elevation ofthe front, and

.Figure 2, an elevation of the light s ide of my machine.

Like letters indicate like parts in each figure.

The nature of this invention relates to an improved device for sawingv shingle-bolts from sections of wood cut to the proper length. l It consists in a new and peculiar combination and arrangement of its several parts.

-In the drawings- A represents a pair of vertical posts or standards, connected at the top by a beam, to form a frame, secured to and resting in a bed-piece, B.`

Journalled in this bed-piece, in the rear of the posts A, is a counter-shaft, C, on which are keyed two pulleys, l) and E, of proper diameters.

F is the driving-shaft, journalled in proper bearings at the top of the posts A, and has keyed to it a pulley, G. This shaft is rotated continuously in any convenient manner. i

H is a sash, sliding on guides I, secured in front of thevposts A.

The sash is constructed with two horizontal bars, H, the side-bars or standards H', and an intermediate standard, H.

J is a circular saw, secured-ou a mandrel, J', which revolves in boxes in the sides ofthe sash.

The mandrel is also providedwith a pulley, K.

The sash and its attachments are counterbalanced by a counter-weight, shown in outline in iig. 2. i

A cord, L, passing over a pulley near the top of the frame, engages with one end of the sash; its other, is secured to the weight.

Two of these weights are used, and are boxed in, Aon the inner sides ofthe posts A.

In the sash, on its rear side, above the saw-mandrel, is hung a shaft, M, rotating in boxes in the standards H On this shaft is keyed a tightener-pnlley, N, sh own in dotted lines in fig. 2.

` O are toothed racks, projecting upward'from the sash.

I is a belt, running from the pulley G down under the pulleyK, thence up over the tightener N, thence down under and around the pulley D, and up over the pulley G again.

By this arrangement ofthe belt on 'these pulleys,

motion will be communicated from the shaft G to them, causing the saw to rotate, and allowing the sash to be moved up or down at will.

.Q is a shaft, rotating in bearings q q in the posts A, having on one enda pulley, It, rotated bya belt, S, from the pulleyE on the counter-shaft.

The bearingq is stationary, while the bearing qhas a slight vertical play on its stnds",'being moved by the lever c through the connecting-rod l); I

On the other end of the shaft Q is secured a friction-wheel, T.

' Below the shaft Q is another shaft, U, having on its end a disk, V.

Projecting inward from the disk, is a hub, c, and

flange v', which form friction-pinions when the fric tion-Wheel T is in engagement with either of them.

On the shaft U are two pinious, u', which engage with the racks O, and cause them to move up or down as the friction-wheel T is brought'iu contact with the hub v or flange 'v' of the disk. Pressing down the lever cr., the sash will be raised up; raising the lever, it will be fed down.

W is a saw-table, slotted to allow the saw to pass down through it.

In the centre of the table is a centre-spindle, X, raised and lowered from the plane ofthe table by a treadle, Y. On this spindle-the lower end of the block is centred.'

The operator taking a block, centres it on the-spindle X, which he raises, byplacing his foot on the treadle, holding its upper end steady with one hand; with the other, he raises the lever a, when the sash will be fed down by the mechanism described, and the saw cuts the bolt through with the ygrain from its front edge toward the centre. IDepressing the lever a, the saw is withdrawn from the block; re'easing the lever, 'the sash remains stationary. I-Ie then turns the block around on the spindle until he presents it so as to take a quarter ont of theblock at the next cut, to the best advantage in the saving of timber, and avoid any knots or shakes, repeating the operation until the block is quartered into bolts.

. What I claim as my invention, and desire to secure by Letters Patent, is-

l. In combination with the sash H, the racks O and the feed-mechanism, consisting of counter-shaft kC, pulleys E and R, belts S and P, shafts Q and U,

friction-wheel T, disk V, provided with friction-hub o and flange c', the sliding box q, lever a, rod b, and the pinions n', the whole arranged and operating in the manner and for the purposes specified.

2. In combination with the foregoing parts, as hereir. described, the standards A, shaft F, pulleys G, N,

K, and D', saw-table W, spindle X, and treadle Y,

whenconstructed, arranged, and operating substantially as andfor thel purposes set forth.

DANIEL H. WHITNEY.

Witnesses:

H. F. EBERTS, JAs. I. DAY.

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