US29411A - Machine for making wooden bowls - Google Patents

Description

UNITED STATES PATENT OFFICE.

RUFUS SIMONDS, OF LUDLOlV, VERMONT, AND G. N. GOODSPEED, OF WINCHENDEN, MASSACHUSETTS.

MACHINE FOR MAKING WOODEN BOWLS.

Specication of Letters Patent No. 29,411, dated July 81, 1860.

To all whom it may concern:

Be it known that we, RUFUS SiaroNDs, of Ludlow, in the county of lVindsor and State of Vermont, and Gr. N. GooDsrnED, of finchenden, in the county of Voi-cester and State of Massachusetts, have invented a new and useful Improvement in Machines for Making lVooden Bowls; and we do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure 1 is a front view of our invention; Fig. 2, a longitudinal vertical section of the same; taken in the line oo, oo, Fig. 3. Fig. 3, a plan or top view of the same.

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

The object of this invention is to cut out wooden bowls with flanches, or rims at their edges, the work to be done at the same time that the bowls are out out so as to complete the whole at one operation. The invention consists in having the segment carriage to which the cutter is attached connected to an adjustable or sliding center block and having a supplemental cutter attached to the segment carriage by which, on adjusting the carriage after each bowl is cut, a flanch or rim may be cut thereon, as hereinafter fully described.

To enable those skilled in the art to fully understand and construct our invention, we

will proceed to describe it.

A, represents a suitable framing which supports a casting or head B, in the upper part of which a horizontal mandrel O, is placed in suitable bearings a, a.

D, are driving pulleys on the mandrel, and the front end of the mandrel is provided with a screw thread b, on which the bolt D, from which the bowls are cut, is screwed. See Fig. 3, in which the bolt is shown in section.

In the head B, a semicircular bed E, is placed, and secured in a horizontal position. This bed is secured in the front part of the head B, and on it a segment carriage F is placed. This carriage F, is provided with a radius bar G, the outer end of which is secured by a bolt c, in a sliding block H, said n block being fitted between horizontal guides ol, d, in t-he front part of the head as shown clearly in Figs. 1 and 2. The block H, has a screw I, connected to it as shown at e, in

Fig. 1, said screw working in a female screw in one of the supports f, of the head as shown in Figs. l and 8. The back edge of the carriage F, is provided with teeth g, into which a pinion 7L, on an upright shaft G, is made to gear when the machine is in operation, said shaft G, having a worm wheel H, on its lever end, into which wheel a screw I, on a shaft J, gears the shaft J, being driven from a driving shaft K, by means of a suitable belt. The upper end of the shaft G, has its bearing in a lever L, which has its fulcrum at z', and by adjusting which lever the pinion h, may be thrown in or out of gear with the carriage F.

To one end of the carriage F, a curved cutter bar M, is attached in the usual way, to wit, by means of a key j, passing through a staple which is secured to the back end of the cutter bar, and passes through an oblong slot in a ledge 7c, secured on the carriage. The bar M, is provided at its outer endwith a cutter N, of usual construction, and the bar M, is fitted between an adjustable friction roller Z, and a bearing m, which are placed on a horizontal bar n, attached to the head B, and are allowed to be adjusted thereon at any desired point by an eccentric clamp o. See Fig. 1.

To the end of the carriage F, opposite to that where the ledge 7c, is secured there is secured a similar ledge p. To the ledge p,-

t-here is attached a cutter bar O, of curved form, and having a cutter g, at its outer end; said cutter having its cutting edge at its lower part as shown at r Fig. l.

The operation is as follows: The bolt D, is screwed on the screw b, of the mandrel O, and the block H, by turning screw I, is adjusted, between its guides CZ, al, so as to be out of line with the mandrel C, as shown in red outline Figs. l and 2. The pinion /L is then thrown in gear with the carriage F, and motion given the mandrel O, and shaft J, and the carriage will be moved in the direction indicated by the arrow 1, and the cutter N, forced by the movement of the carriage F, into the rotating bolt D, the cutter describing such a curve as to cut bowls which will be portions of oblate spheroids, and not portions of spheres as would be the case were the center or bolt c, of the arm G, coincident with the axis of the mandrel O. As the bolt D', rotates it will of course be understood that the cutter N, does not pass the center of the axis of the mandrel. After the cutter N, has performed its work the pinion z., is thrown out of gear with the carriage F, and the block H, is adjusted centrally between its guides cl, CZ, and coincident with the aXis of the mandrel C, and the pinion L, is then again thrown in gear with the carriage and the cutter g, cuts into the sides of the bolt and thereby forms a rimY or flanch s, as shown clearly in Fig. 3, the formation of the rim or flanch being due to the varying of the position of the block H, relatively, with the aXis of the mandrel C.

The operation of the cutter N, is precisely the same as that of the old machine or the one in present use, several bars M, of different curves heilig used so that a nest of bowls will be cut out of each bolt, each bar M, being adjusted in the ledge 7c, at the proper point to eifect such result. As the cutter g, always works in the paths of true circles concentric with each other but one bar O, is required, but that is adjusted in its ledge p, nearer the mandrel at each succeeding cut.

Thus it will be seen that by the arrange.

ment of the adjustable block H, and the supplemental cutter g, the bowls may have rims or fianches formed on them by a very simple means and without materially increasing the manipulation ordinarily required in the old machine.

We do not claim the segment carriage F,

moving in a curved path and having a cut- RUFUS SIMONDS. Gr. N. GOODSPEED.

l/Vitnesses F. C. RoBBINs, E. S. MERRILL.

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