USRE1474E - bensel - Google Patents

Description

e UNITED STATES PATENT OFFICE.

DANIEL E. BowKEn AND wIIQLrAM P. BENsEL, oF NEW YORK, N. Y.

MACHINE FOR CHlNlNG AND JOINTING STAVEIS.

Speci ficaiion forming part of Lettersl Patent No. 364, dated February 12, 186].; Reissue No. 1,4 711, dated May 19,1s63.

To @ZZ whom it may concern:

Be it known that we, DANIEL R. BowKER and WILLIAM P. BENsEL, of the city, county, and State of New York, have invented a new and Improved Machine for Chining and Jointing Staves for the Manufacture of Barrels and all Kinds of Casks; and we do hereby declare that the following is a full, clear, and exact description of the same, reference being had lo the annexed drawings, making a part of this specification, in which Figure 1 is a side sectional view of our in-y vention, taken in the line x x, Fig. 3; Fig. 2, a front view of the same; Fig. 3, a horizontal section of the same, taken in the linex' x', Fig. 1 Fig. 4, a detached view of the cutter of the same.

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

The object of this .invention is to obtain a simple machine for chining staves-that is to say, cutting the chamfer, croze, and boweland also for jointing the staves,the work being done at one operation.

The`invention consists in the employment or use of a rotary cutter-disk in connection with a swinging clamp-frame and rotary cut ters arranged for joint operation, substantially as hereinafter described, whereby the desired object is obtained.

To enable those skilled in the art to fully understand and construct our invention, we will proceed to describe it.

A represents a framing, which may be constructed in any proper way, to support the working parts of the machine; and B is a horizontal shaft, which is placed in said framing A, and has a cutter-disk, C, attached at one end. This disk has a circular recess, a, at its center, the cutters b b of the disk being secured in the outer part, c, of the disk, and in an oblique position therein, as shown clearly in Fig. 2. On the shaft B a driving-pulley, d, is placed. D is avertical shaft, which is also placed in the framing A, and has a pulley, E E, 0n it, one near each end, and a driving-pulley, F, at its upper end.

F F are two small vertical arbors, which are fitted in proper heads, e e, at the ends of horizontal arms f f, which are attached, one to the upper and the other to the lower part of the framing. Atthe lower end of the upper arbor F and the upper end of the -lower arbor F there'are secured cutter-heads G. These cutter-heads have attached to them a circular saw, g, and cutters h fij, -as shown in Fig. 4. The arbors F' F" are rotated from the shaft D by belts H H, as shown clearly in Figs. l and 2.

I is a vertical stationary shaft, which is secured to the framing A directly in front of the cutter-disk C and in line with its axis or shaft B. The shaft I is not perfectly straight, it being so bent that its central part, k, may project into the recess a at the center of the cutter-disk C, and its ends l Z be in line with the central part, k. This will be fully undera stood by referring to Fig. 1.

On the shaft I there is placed a swinging frame, J. This frame may be described as being formed of two parts, in n. The part fm is a curved or bent bar, the ends of which are fitted loosely on the ends Z lof the shaft land allowed to swing freely thereon. The other part, n, of the frame J is fitted on the central part, k, of the shaft l', and is allowed to swing or turn freely thereon. The two parts m a of the frame J are connected by rods or bars oo, which insure a simultaneous movement or turning'oi` said parts and a proper relative position of the same at all times. (See Figs. l and 2.)

To the smaller part n of the frame J there is attached a curved bar, p, which is provided with a horizontal central projection, g,which, with the two ends r r of the bar p, form bearing-points for the stave to be operated npon. This bar p'is attached to the part n of the frame J by screws s s,and india-rubber or other suitable elastic washers, t,are interposed between the bar p and part n, the use of which will be presently shown.

To the part m of the frame J there is at tached by a fulcrum-pin, u, a lever, K. This lever K has a bar, '0, secured to it, to the ends of which there are attached the outer parts of levers w tw, which are also secured by fulcrumpins a. a' in the part m of the frame J. The inner parts of the levers w have each a curved slot, w', in them, and they are fitted inslots in a bar, L, which is attached to guides b b', which work horizontally i'n the part m. Pins c' in the bar' L pass through the slots w of the levers w. (See Figs. 1 and 2.)

To the bar L a bar, M, is attached by proper bolts or screws, and the ends of the bar M project outward, as shown at d', to form bear ing-points for the staves, a central bearingpoint, e', being also attached to said bar M.

The operation is as follows: The stave A to be operated upon, being properly dressed, -is clamped between the two bars p M by forcing down the lever K, the stave when thus clamped being properly-bent or curved by the relative position of the bearing-points q fr d d e of the bars p M. The elastic washers t compensate for the difference in the thickness of the staves, and insure all being securely held in proper position. The shafts B I are rotated by any convenient power, and the frame J is turned in a direction toward the left, and the saws g of the cutter-heads G' saw off the ends of the staves so that the latter will be of proper length, while the cutters h form the chambers f, the cutters I cut the Croze y', and the cutters j form the howel h. (Shown in Fig. 4.) The frame J being still turned further tothe left will bring one edge of the stave in contact with the part c of the disk C, and the cutters b will joint the edge of the stave. The frame J is then turned in the opposite direction-to the right-until the opposite' edge of the stave is brought in contact with the part c, and the remainingedge of the stave is jointed and the operation ended. It will be seen that the staves are jointed perfectly on a radius with the disk C in consequence of the fra-lne J being hung on a bent shaft, I. This. arrangement of the shaft I causes the frame J to swing from the center of disk C, or rather from a line which passes through its center, and this line corresponds with the center of the barrel or case of which the stave is to form a part. This is an important feature of the invention, as Ait insures a perfect jointing of the staves. By having the parts m n of the frame J connected together they are made to inove or turn simultaneously, and the bars p M of the clamp are always kept in a proper relative position with A each other for the ready insertion of the stave. We do not claim the cutter-heads G, for they have been previously used, nor do we claim the clamp for clamping the staves, for. substantially the saine thing has been used; but

We do claim as new and desire to secure by Letters Patent- 1. The swinging clamp-frame J, in combination with the rotating cutter-disk C, arranged substantially as shown, for the purpose of,r joiuting the staves, as set forth. 2. The combination of the rotating cutterdisk C with the cutter-heads G G and ing clamp-frame J, arranged for joint operation substantially as and for the purpose set forth.v

DANL. R. BOWKER. WM. P. BENSEL. Witnesses:

M. S. PARTRIDGE, ROBT. LoUDER.

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