US40596A - Improved stave-making machine - Google Patents

Description

NTTED STATES PATENT EETCE.

ALVY T. BARES, JOHN B. BARNS, AND SOLOMON BARNS, OF GROESBECK, OHIO.

IM'PROVED STAVE-.MAKING MACHINE.

Specification forming part of Letters Patent No. 10,596, dated November v17, 1863; antedated November 11, 1863.

To all whom it may concern.'

Be it known that we, ALVY T. BARNS, JOHN B. BARNs, and SOLOMON. BARNs, all of Groesbeek, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in Stave-Making Machines; and we hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings and lettersv of reference marked thereon, which form part of this specification.

Our invention is intended to cut the staves of the proper length, to dress them on the i11- side and on the outside, and nally to dress the edges to the proper bevel. The various devices for these purposes are arranged side by side on one bench, and will be described in order below.

In order that others duly skilled may be enabled to understand and construct and use our invention, we shall proceed to describe it l in detail.

In the accompanying drawings, Figure l is a perspective drawing of the complete Inachine. Fig. 2 is a vertical transverse section through that portion of the machine designed for dressing the edges ol' staves. Fig. 3 is a vertical longitudinal section through that portion ot' machine designed for dressing the inner and outer sides of staves. Fig. 4 is a plan of bits or knives for dressing in and out sides of staves.

Like letters of reference designate like parts in all the drawings.

A A are the two main pieces of bench, joined by the bolts c d, and supported by the braces b b b b and base-pieces B B. C is a longitudinal rail for the attachment and support ot' pedals, and also for strengthening and staying .the bench. Two upright stays, C O, are fastened to rear main piece A and longitudinal rail C, for the attachment of pedals and for stil'ening the entire bench.

The machinery for cutting the staves of the proper length will first be described.

D is a shaft or spindle, journaled in boxes c c, (supported by bench A A,) havin g a flywheel, E, keyed on its outer end, and on its inner eX- tremity, as on a mandrel, carrying a small circular saw, F. 0n the middle, or thereabout, of the spindle is the toothed pinion G, which, be-

ingl in gear with a toothed wheel, G', below, receives motion therefrom. vThis wheel below is keyed on a shaft, properly journaled, and having a crank, c', on its inner end. To this crank the pitman-rod d is attached, and b v means ofthe pedal H, to which the other end of pitman-rod is linked, the circular saw is set v in motion by the foot of operator. Alongside of the circular saw on the bench two guides, I I, aresecnred, and on the inner side each guide is grooved. In these grooves the gageframe J slides. On this frame an iron gagerod, K, is secured with a stop or gage, K', in the form of a clamp attached thereto by a clamping-screw, f., The staves being already riven out are singly placed on the gage-fra1ne,(which has previously been set to the required length,) and the circular saw being put in motion the frame and stave are pressed. against the saw F, which, being in rapid revolution, cuts oft' the surplus length, as may readily be understood on inspection of the drawings.

L L Lll are three uprights, risingt'roin bench A A, for the support of the various parts connected with dressing the sides and edges ot' staves. The three uprights are strengthened and jointed together at top by the plate M. The uprights L L are grooved. on the inside, and the sash N is madeto slide vertically in the grooves. This sash is perforated in the head, as at g, Fig. 3, and is furnished with two plates, h It, between which the toothedquadrant j is pivoted. This quadrant j has ahandle or lever, i, attached for convenience of `handling. On the top ot sash N and between the plates li h the rack 7c is laid, and from the lower side ot' this rack the pointed bar or tooth l projects down through the opening g in head of sash. A cord, in, attached to sash N, and passing over the pulley n, and weighted at the other end, w, tends to uphold the sash. The hand-lever O, pivoted on the lower bar of sash N and catching into the notches a in upright P, behind, enables thev sash to be depressed forcibly, notch by notch, by the hand of the operator.

Q Q are the two bits or knives, curved to suit the periphery of barrel which the staves are to form. These bits or knives are laid, edge upward, across the main beams A A. They are held apart at the proper distance and have the proper set given them by means of the wedges w to, which are driven up through the main' beams A A. The setscrews o o, which are sustained by the metal is for the purpose ofsplitting the convex Shaying which comes off the inside of stave, and t thus prevents it curling up and blocking up the bench.

The operation of this part ofthe lnachineisv as follows: The stave, after being cut to the proper length by the saw, is placed edgewise between the two bits or knives Q Q, and is held slight-l) off the perpendicular by the point l, which, by means ot' the rack and arm i', is driven into the end of stave. The workman th en,bymeaus of his` hand on the levert), forces the sash downward, and the stave is simultaneously forced through the two bits Q Q. As soon as the stave has reached the middle of its length, the arm t' and point Il are changed so as to throw the stave out of the perpendicular in the opposite direction. 'lhe lever is again worked, and the other half of the stave is lor-eed through between the knives and falls out at the bottom, dressed on both sides, and having the proper curvature both crosswise and lengthwise. It only requires dressing now on the edges. The next portion ofthe machine is for this purpose. I

L L", the two uprights, are grooved on their inner sides, and in the grooves the sash R slides.V This sash is sustained by two rods, z z, which are secured to crosshead of sash by nuts, and pass up through the plate M, and through the center of two spiral springs, q q, beingjoined at top by the box-bar 1. To the bottom of sash lt two rods, s s, are attached, and the other extremities of said rods being linked to the pedal S the operator can depress the sash li by means of hisfoot, the springs q q returning it upward when the pressure of the foot is removed. Across the back of sash lt a strong iron bar or plate, t, is secured, and across the front of said sash the knife-blade T (shaped as shown) is secured in both cases by screw-bolts and nuts. Three screws, u u a, riveted to blade of knife T, pass backward through the bar t, and screw-nuts being run on the screws the knife is set to any curve which is required by the size and taper of the barrel for which staves are being manufactured. v

U is a cross-piece or bench secured to and between the uprights L' L, and a small distance above the main bench-piece A A. This cross-piece is cut out or lowered in the middle to the length of the. opening in sash R, as shown, and is edged by iron plates c. On the under side of same cross-piece, a plate, 2, is secured, and through this plate, upward and .through cross-piece U, the two set-screws 3 3 are passed. The points of these screws are stopped by the plates 4 4, which are hinged on the iron plates t. The use of the plates 4 4 and set-screws 3 3 is to cant the stave when it is laid on thebench, so as to have the edges cut at the proper bevel for the radius of the barrel. Through between thel plate 2 and under side of cross piece U niortises are cut for the bars 5 5 to slip in. These bars bear the cross-piece V, which is secured to bars, and

thus is guided in being drawn in and out from cross-piece U. `On top of the latter piece, V, the two projecting stops 6 are secured, and on these the stave to be dressed on the edge is laid. The bent holder W is hinged on piece V, so as to enablethe operator to hold down the stave when laid on. The stave and crosspiece Vare then pushed in toward the bench U and knife, the pieces or plates 4 4 tilting said stavejustsufliciently. Then, whenitis brought under the knife T, the pedal S is pressed down and the edge of stave is eut by knife T, and the stave is reversed for the other edge to be dressed in like manner.

The operation of this part, as well as that of the whole, having been described in describing the parts, or in special paragraph, we proceed to state what we claim as new, and what we desire to secure by Letters Patent.

We claim A stave-making machine having three differentparts or devices, oneforcutting the stave to theproperlength,anotherfor dressing the sides of staves in proper shape, and the third for dressing the edges of the saine, 'all combined and arranged together on one bench, and each part consisting, substantially, of the devices land parts set forth in this specification.

ALVY T. BARNS. JOHN B. BARNS. y SOLOMON BARNS. XVitnesses J. B. ELLIOTT, Guo. PYBUnN.

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