USRE4411E - Improvement in machines for crozing staves - Google Patents

Description

H. ELLIOTT, E. SMITH & S. S. GRAY.

Improvement in Machines for Crozing Staves.

N0. 4,41]. ReissuedJune6,1871.'

71671285805, MW M UNITED STATES PATENT OFFICE.

HARRISON ELLIOTT, ELIJAH SMITH, AND SOLOMON S. GRAY, OF BOSTON MASSAOHUSETTS, ASSIGNEES, BY MESNE ASSIGNMENTS, OF H. ELLIOTT.

IMPROVEMENT IN MACHINES FOR CROZING STAVES.

Specification forming part of Letters Patent No. 86,912, dated February 16, 1869; reissue No. 4,4 11, dated J une To all whom it may concern:

Be -it known that HARRISON ELLIOTT, of

The invention consists, primarily, in the combination, with a double set of rotary cuttingoff saws, crozing saws or cutters, and chamfering cutters, (one set for each end of the stave,) of two rotating drums or disk-wheels, provided with teeth or pins, which receive the staves (stave by stave) and present them in succession to the action of said cutting-off, crozing and chamfering mechanism.

The drawing represents a machine embodying the invention. v

Figure 1 represents a vertical longitudinal section of the machine. Fig. 2 is a plan of the same. 7

A denotes the frame for supporting the operative parts of the machine. j is a horizontal shaft journaled in suitable bearings on the rails r 'r of the frame, and having fixed upon it two disk wheels or drums, C, from the periphery of each of which project teeth or pins f, by means of which the disk-wheels carry the staves to the action of the dressing mechanism, the rotation of the disk or carrier wheel being effected by means of an endless screw on a vertical shaft, m, meshing into and driving a worm-wheel, k, on the disk-shaftj, the shaft m being driven in any suitable manner. Upon each side of the frame A are hearings, in which is journaled a short shaft or arbor, g, each arbor carrying a circular cuttingofl' saw, h, a rotary chamfering knife or cutter, i, and a crozing-saw, i, and each arbor, q, (with its cutting, chamfering, and grooving tools,) is so arranged relatively to the adjacent diskwheel 0 that as the opposite ends of the staveblank on the two wheels pass over the two arbors q the under surface of the stave is chamfered and crozed at both ends, and both ends of the blank are cut off, bringing all the blanks to a uniform length, corresponding to the distance between the cutting-off saws. On one side of the wheel 0 is a table, B, the end of which, adjacent to the edges of the wheels 0, is in such position relatively to the wheels that if a stave-blank is placed at the end of the table with its inner face toward the wheels the opposite ends of said blank will be seized .by two pins of the wheels 0 and carried around upon the peripheries of the wheels, the staveblank passing under the free ends of two long springs, G, which are fastened at their opposite ends to the top of the frame, as seen in Fig. 2.

As the feed or carrier wheels rotate they oarry the blank on until it reaches the two saws -h, which cut off its opposite ends, leaving the blank of proper length to form the stave. It then passes over the crozing-saws i, which cut the two crozes or grooves in its under surface, andover the chamfering-euttersi', which chamfor from each croze to the end of the blank, the springs Gr holding the opposite ends of the blank down to the peripheries of the diskwheels and to the action-of the cutting-off, crozing, and chamfering mechanism. Thus dressed or finished the stave continues to be carried on by the pins or teeth of the rotating carrier-wheels until the blank comes into position to drop from the wheels. The table B is to be kept supplied with blanks, so that by pressing the series toward the wheels the pins will take up the blanks, one by one, so long as any are presented, the length of the pin causing one, and but one, blank to be taken by each two opposite pins. To automatically present the successive blanks the table is provided with a' slide or follower, D, in front of which the blanks are placed on the table, the follower being carried toward the wheel by a weight, 9, attached to one end of a cord whose other end is fastened tothe follower, the cord running on a suitable sheave or pulley, e. The table B is inclined, as seen in Fig: 1.

By means of a machine thus organized the dressing of staves, so far as relates to cutting them to uniform length and accurately crozing and chamfering them, may be very rapidly and cheaply efiected,,and the mechanism is simple and easily run.

What is claimed is- 1. In combination with the cutters and carand cutters,the springs Gforholdingthe blanks rier-wheels herein described, the table B for to the wheels and to the action of the cutters, presenting the staves to the action of the teeth substantially as described. of the carrier-wheels, substantially as specified. HARRISON ELLIOTT.

2. In combination with the carrier-wheels ELIJAH SMITH. and table, the slide .or follower D and mech- SOLOMON S. GRAY. anism for operating said follower, substantial- Witnesses:

1y as described. J. B. CROSBY,

3. In combination with the carrier-wheels FRANCIS GOULD.

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