US8230A - V machine foe - Google Patents

Description

'UNITED STATES PATENT OFFICE.

D.` wooDoooK, E INDEPENDENCE CENTER, NEW YoEx.

`MACHINE FoEsAwiNG AND DEEssINGMsTAvEs. j

Specification of Letters Patent No. 8,230, dated J u1y` 15, 1851.`

which- Figure 1, is an end elevation. Fig. 2, is a longitudinal section throughthe line O, O, Fig. 1, and Fig. 3, is a plan, having part broken away. i j

The same letters of reference denote similar parts throughout each of the several gures. n c The nature'` of my inventlon consists `1n the employment of a cylindricalsaw, hav-` ing teeth around its one edge, and which is fitted loose on a pulley of somewhat smaller diameter, driven by friction of the saw, and` provided with cutters projecting from its front face which serve to clean out and shape the inside ofthe stave that being `fed up to the saw is out of the required sweep or curve, the saw being driven by a band that holds it up to its Dlace on the pulley the position of the saw with which is that of an eccentric so as to form a space of the thickness, and for the travel, as it is cut, of the stave. t

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

A, is a feed table or bed, built on a suitable framing and with projections, also having attached to or in connection with it an upright standard B; t l

C, is the driving shaft; D, the driving pulley; and E, another pulley situated at the back for giving motion to the shaft G.

F, is the saw shaft fixed in the standard B,` and G, a pulley fitting loosely on it,"the center of the shaft F, being situated higher than the face of the bed or feed table. v

H, is the cylindrical saw of any desired depth having teeth on its front edge, similar to the ordinary tub saw; it should be sl-ightly elastic and of larger diameter thanthe pulley G, and is driven by a band I, fromthe pulley D.

.J J, are friction rollers turning on shafts band I, up toits bite onthe saw, &c. V j e q K, K, are rollers situated so as thatthe back edge. of the saw works `11p-against them; L, L, tare cutters, curved or of any suitable shape, secured to the face of the pulley G,

secured tothe standard Bfthey keep the from which they project so that their cutl ting points rather extend beyond the line of the periphery of the pulley, G.

M, is the feeding guide strip secured to the bed` A. The bed Amay, if desired, be made adjustable so `as to be set at-any required height in relation to the saw, according to the width of stave required to be cut,

and `different sized saws onthe same pulley G, may be used.` v

`The operation is as follows: Motion `is given to the pulley E, in the direction shown by black arrowFig. l, or the shaft C, made to rotate by any suitable power, which through the band I, will cause the saw H, to revolve in the direction shown by red arrow Fig. `l, and by its flexibility and `adhesion or friction on the pulley G, produced `by the tightening force ofthe band, which the rollers J, J, serve to increase; the pulley G, and cutters LL, will be made to revolve together with the saw, the position of which with the pulley by their dierence of diameter and tightening effect of the band,`

will be, asseen more particularly in Fig. 1,

assuming the form of an eccentric, and leav-` ing` a space between it and the-pulley of greater depth;` `(or placing them further apart) ata point a little below the center of and in front of the pulley G, being situated on or about a line drawn between the shafts C, F, which point of greatest `depth will be constantly preserved in the same position by reason of the flexibility of the saw, and

through the bite of the `band and increased pressure caused by the rollers J, J. A board being fed up tothe saw on the bed A, and

having its edge bearing against the guide 'strip lvl, will have its inner edge operated on by the cutters L, L, (of which there mayA `broughtup for a fresh cut until consumed;

the saw the staves of a curve on their back answering tothe required diameter of the cask or vessel, while the cutters L, L, give them an appropriate corresponding sweep answering to the inner diameter of the Cask and serving to give them a cleaner interior surface than if operated on only by saw, the stave as it is being thus sawn and cut passing between the pulley G, and saw H, through the space described formed by the eccentric position of the saw With the pulley Gr, the saw being kept up to its cut or prevented from backing or slipping on its pulley by the rollers K, K, against Which the back edge of the saw bears. The stave thus formed is ready for beveling or further finishing as required.

I do not claini the use of a cylindrical saw H, as such has frequently been used, but

What I do claim as my invent-ion and desire to secure by Letters Patent is- The employment of the saw H, seated loose upon a pulley Gr, so as to form an eccentric position With the same as specified, in combination with the cutters L7 L; the several parts constructed and operating together for the purposes set forth, substantially as shown and described.

DENNISON WOODCOCK.

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