US535877A - Stave-jointing machine - Google Patents

Description

(No Model.) 2 Sheets-Shet 1.

J. WINTERBOTHAM.

STAVB JOINTING MACHINE. l No. 535,877. `Patented Mar. 19, 1895.

WEne sses InuanTnr:

(No Model.) 2 Sheets-Sheet 2.

J. WINTE-RBOTHAM. STAVB JoINTING MAGHINB.,

No. 535,877. Patented'lvm. 19, 1895..

iTED STATES PATENT rrtcn.

JOSEPH VVINTERBOTHAM,.OF J OLIET, ILLINOIS.

s'rAvE-JolNTlNc MACHINE.

SPECIFICATION forming part of Letters Patent No. 535,877, dated March 19, 1895.

Application tiled March 17, 1894- Serial No. 504,007. (No model.)

To ci/,ZZ whom iv may oon-cern.-

Be it known that I, JOSEPH WINTERBOTHAM, a citizen of the United States of America, residing at Joliet, in the county of Will and State of Illinois, have invented certain new and useful Improvements in Stave-Jointing Machines, of which the following is a speciication, reference being had therein to the accompanying drawings, and the letters of reference thereon, forminga part of this speciiication, in which- Figure l is a perspective view. Fig. 2 is a vertical section of Fig. 1 taken on line l looking in the direction of the arrow and Fig. 3 is a perspective view of oneof lthe adjustable stops for controlling the vibration of the stave holder frame.

This invention relatesto certain improve- 'ments in stave jointing machines, and relates more particularly to that portion of the machine forming a gage for use in adjusting the stave in the machine so as to waste as little of the stave as possible in the operation of .jointing it.

Referring to the drawings F is the main frame of the machine, bearing the shaft D journaled in proper boxes in the upper part of said frame. Said shaft has secured on it the fast pulley y and the loose pulley y', to which fast pulley a drive belt is applied, and said shaft has also secured to it a cutterrhead A carrying a series of cutting bits C, in its side for jointing the stave.

G is a vibrating frame arranged to stand at the side of the cutter head A, near its lower part, and pivotally supported at each of its lower corners in boxes L secured to cross bar F of the main frame F in such manner that its upper part is free to vibrate to and from said cutter head within the limits of adjnstable stops m secured to the main frame F.

E, E are a pair of matching curved clamp img levers pivotally connected, one to each upper corner of said vibrating frame G at t', and opposite each other, and having their upper ends curved toward each other and downward so they may be simultaneously clamped down upon the ends of the stave. The opposite lower ends of said clamping levers each "for gaging a stave inthe machine.

pass through a sliding box S located centrally in frame G in a Vertical slot, and having atclamped down upon the ends of a staveto hold it firmly in place while being jointed.

When the outer end of said foot lever T is relievedfrom pressure, the weighted inner end N of said foot lever will cause said clamping levers, and the parts connected with them to return to their first position.

0 is a post arranged to stand on cross bar F of frame F, and opposite the center of vibrating frame G at its outer side, and is adjustably secured to said cross bar by means of machine screws C passing through its foot plate, and may have its upper end adjusted to or from4 the cutter head A by means of loosening some or all of said machine screws, and turning the set screws n that pass through said foot plate. The upper end of said post O has pivotally connected to it an armP projecting toward said cutter head, and having its outer end turned up at right angles to form a gage fora stave to rest against. The adjustment of the post O to which it attaches being for the purpose of setting said gage to hold a stave at the proper place while being jointed to save as much of the stave as possible. Said gage arrn P is connected with arm W of rock shaft S by means of the rod R pivotally connected to said gage, near its pivoted inner end, and which rod passes through an eye Z on the side of arm W loosely. Coil springs Z are sleeved on said rod, one on either side of said eye, and in contact therewith, and held in such contact by means of nuts turned on said rod, so as to yieldingly hold said gage P in proper position Pressure on foot lever T will. through the medium of rod R cause gage P to swing down as shown in broken lines in Fig. 2, out of the way of the vibrating frame G and stave. At the same time clamping levers E are clamped on the stave, to hold it while being jointed as IOO before stated, and when said foot lever is released from pressure its Weightedend N will cause said gage to return toits first position.

H, H, are a pair of arms secured to a rock shaft J having its ends journaled in boxes L on the inner side of vibrating frame G at about its center, which arms are curved at their upper ends toward the cutter head A to engage the rear edge of a stave and carry', it forward to the gage P, andhold it in contact with the stave by means of the Weighted arm K secured to said rock shaft J, thus forming a pair of gravity clamps against which the stave is placed and carried forwardby them to the gage P, and also for the purpose of giving proper alignment to the stave While being jointed.

B is a case for inclosing the back, and periphery ofthe cutter head, and forming a re ceptacle for the shavings which dischargeV from a spout in the periphery ofV said case, and shown in Fig. 1.`

I n operatlionla stave is placed on the upper. faceof the,v il'iratinlgy,v frameGy s o its,A centerl will rest on the bilgedbloc,l;y o, and its ends., 011 a similar restat each endyofgthe frameun'der the clamp levers E, and vvithits` rea/r, edge iny contact withjrhe two clampsH whichl gliv'eit the` proper alignment and carryit forward against 'the gage P,`v'v'her 1by means `of; press;V ing down on the daterend of .lfoot'leuei-T, ,the4 l two clamp levers are brought down on the ends of the stave to hold it rmly in place, and simultaneously the gage P is caused to swing down from the stave and out of the Way of the frame G and stave, While the frame G is Oscillated forward Within the limits of the stop m to bring the edge of the stave up to the cutter head A to be jointed. Such oscillation of frame G. is caused by reason of the foot lever being connected with it by means of the link V', and rod V as shown in Fig. 2. The stopsm and the gage P are adjusted so as to prevent any more of the stave being planedoff and Wasted than is absolutely necessary.

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

In a stave jointing machine the combination of the vibrating'frameG, gravity clamps H, K, clamping levers E, E, sliding box S. carryingsaid leverr, rod`V,l1inkrV, foot lever T, N, lever YW, shaft SA, standard O, gage P,

rodR. having vthe ycoil springs and nuts Z, Z,

and the adjustable stops, m,' allarranged to operate substantially as andgfor thepurpose set forth.x

JOSEPH WINTERBOTHAM. Witnesses THQ/S,- H- HUTQmNs, HERBERT COWELP'

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