US133469A - mcgrew - Google Patents

Description

JOHN MOGREW, OF RAVENSWOOD, WEST VIRGINIA, ASSIGNOR TO HIMSELF AND MARGARET J. SMITH, OF SAME PLACE. 1

IMPROVEMENT IN STAVE-JOEN'TERS.

Specification forming part of Letters Patent No. 133,469, dated November 26, 1872.

To all whom it may concern:

Be it known thatI, JOHN McGREW, of

Ravenswood, in the county of Jackson -and State of West Virginia, have invented an Innproved Stave-Jointer, of which the following is a specification: The invent-ion consists in arranging one or morepairs of angle-shaped knives to reciprocate over a bearing-roll, over which the hoop is drawn for the purpose of being notched and being made to take the bulge necessary in barrels. Secondly, theinvention consists in a peculiar mode of intermittently moving the roll while the said notches are out, as hereinafter fully described.

A represents the frame of the machine, and B the driving-shaft which is journaled therein. 0 O are two angle-shaped jointingknives, which alternately cut out V-shaped pieces from the hoop, as it rests upon a cylinder, D, directly beneath said knives. These notches are not formed opposite to each other, and are intended to allow the hoop to take the bulge required. These knives O O slide up and down in the guide E, and are actuated by pivoted bars, F F, having yokes on their ends, and by cams g g of the driving-shaft G. In order to feed the hoop intermittently before the knives I employ the two ratchets H H, with carrying- I pawls I I, to rotate it a given distance alternately, and a notched wheel, J, and detent K,

to hold the roll stationary when the knives are at work. L represents a hinged bearing piece for the roller-shaft, provided with latch 1,

whereby the roll may be easily and conveniently made to receive the hoops for each barrel that have been cut from the convolute strip. M is a revolving shaft on whose end is placed a disk, on. In slots of this disk are placed the crozing-tool N, chaniferer O, andtwo edgetrirnmers, P P.

The barrel having been formed, the edge of one end and then of the other is placed under and against the outer edge of disk, While the shaft M revolves and the barrel is stationary. The tool N then cuts the croze or circular groove into which the head fits, the tool 0 cuts the inner bevel, and the tools P P trim the top edge of barrel. The tools N O are attached to lever-stocks Q Q, which are pivoted and caused, by springs or a sliding. ring, R, to be fed gradually to the barrel as they do their work.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, isv 1. The jointer provided with one or more pairs of angle-knives, 0 0, arranged to operate alternately upon different edges of blank, as and for the purpose set forth. I

2. The ratchets H H, pawls I I, notched wheel J, and detent K, combined and operated in connection with roll D, as and for the purpose described.

JOHN McGREW. Witnesses:

SoLoN 0. KEMoN, CHAS. A. PETTIT.

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