US71277A - Improvement in stave-machines - Google Patents

Description

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'Pd wie@ MMM, /567 [22 1re nlm'- uitrit tetra atmt @fitta FRANCIS C.' CLARK, CF BENTCNS PORT'ICWA, ASSIGNCR TO HIMSELF ANI) JOHN E. REININGHAUSCF THE SAME PLACE.

Letters Patent No. 71,2717, dateclNovember 26, 1867.

IMPROVEMENT IN STAVE-MAGHINES.

TQ ALL WHOM IT MAYCONCERN:

Be it known that I, FRANCIS O. CLARK, of Bentons Port, in the county of Van Buren, and State of Iowa, have invented a new and imprqved Machine for Dressing Barrel-Staves; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making 'part of this speci'dcation, in which Figure 1 is a plan view of the improved machine. j

Figure is a longitudinal section taken in the vertical plane indicated by red line x x in g. 1.

Figure 3 is a transverse section taken in the vertical plane indicated by red linehg/ y in iig. 1.

Figure 4 is a transverse section taken in the vertical plane indicated by red line z z in gs. 1 and 2.

Figure 5 is a detail ofthe saw-frames.

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

This invention relates to certain novel improvements on machinery which is designed for dressing staves on their outside surfaces, so as to prepare the staves to be tted together and hooped in the form of barrels.

To enable others skilled in the art to understand my invention, I will describe its construction and operation.

In the accompanying drawings, A represents a table, which is adapted for sustaining the devices for jointng and dressing staves. Upon the top B of this table is a sliding carriage, C, which is fitted to move in a groove extending transversely across the tabletop;.and through longitudinal slots, which are made through this carriage, two inclined circular saws project, for bevelling or jointing'thc staves which are confined upon said carriage. Near one end of the carriage C is a standard, a, to which is pivoted a right-angular lever, b, the object of which is to bend and lconfine one end of a stave upon the carriage. The opposite end of the stave is confined beneath a clamp, c, on the end oi'ya set-screw, which is tapped through a bracket upon the carriage. Between the two clamps is a block, cl, which is attached to the carriage by means of short studs, and which is movable. This block forms an elevated support for the middle of a. stave lwhen bent and held down, as shown in fig. 3, and by adjusting it in a direction with the lengthofvits carriage, and bending the staves over it, more or less, the staves can be brought to the exa-ct curved shape which they will take when hooped together in a barrel.

The edges of the staves are bevelled or jointed by means of two inclined circular saws e e, which are keyed on the ends o f arbors ff, and driven by means of belts leading from the main shaft D. The saw-shafts ff have their bearings upon frames g g, which are inclined in opposite directions, and which are allowed to have an endwise adjustment, Vso that the two saws can be moved nearer together or further apart, according to the width of the staves to be jointed. The saw'frames g g are supported in guide-frames 7th, which are pivoted by the trunnions z' to the table-frame, thus allowing the saw-frames to be vibrated, and the saws adjusted and set at any desiredinclin ation, according to the diameter ofthe barrels for which the staves to be jointed are designedi The two levers jj are intended for adjusting thesawsvund holding them at any desired angleawith respect to the table A; and the lever 7c, with its toggle-joints Z l, is designed for adjusting the saar-frames and setting the saws at the required distance apart. The three leversjj and 7c extend to the front part of the table, and pass through hangers m, to which the levers are attached by means of pins passed through said hangers.

Alongside of the sliding carriage C are the devices for dressing the external surfaces of the staves after they have been jointed. Forithis purpose I employ feed-rollers 1t at', one of which is concave and the other correspondingly convex, a supporting-roller, o, and two guide-rollers pp. Between the two rollers 1t andp are the cutters, which are secured to a cutter-head, r, upon a shaft which receives its motion from the main driving-shaft E through the medium of a belt. y, j

The staves are Guided up to the work uponvthe curved bed s made in the table-top B, and allowed to pass ofi' after they are dressed over the curved bed s. This bed s e andthe lower set of rollers 'n' op are arranged in a curved line, corresponding to the curved shape ofthe sawed staves, consequently the latter will not be bent or strained while they are being dressed.

In order tovadapt this part of the machine for dressing st'aves of diiierent thicknesses, I shall employ vertically' adjustable bearings or journal-boxes for the ends of the feed-roller and cutter-head shafts, or simply for the feed and supporting-roller shafts, which bearings will be adjusted by'means of the setscrews t t, shown in fig. 4.

By my arrangement of jointing and dressing contrvances alongside one another, as shown, the attendants at one end of the machine can conveniently pass the staves to and from the jointingdnachine and to the dressingmachine, and thus the operation of jointing and dressing curved stares-can be carried on uninterruptedly after the machine is started.

My combined machine prepares curved staves ready for being set up into a barrel, and to be crozed, after they have been bent or are sawed from a b olt, and the staves which are thus produced are more perfect and cost less, for the reason that I employ new and'improved machinery in their production, such machinery being much simpler in construction and arrangement than any with which I am familiar for doing like and the same'amont of work in a given time. I

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

The curved beds s s', formed `in the table-top B, in combination with feed-rollers n np p', supportingroller o, and cutter-head r, arranged as described, for the purpose of dressing eurvedlstaves.

FRANCIS O. CLARK.

Witnesses:

EDW. SCHAFER, EDM. F. BROWN.

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