US335074A - jewett - Google Patents

Description

(No M odelf) E. M. JBWETT.

MACHINE FOR JOINTING GOMPRESSED BENT STAVES.

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ArtNr EDWARD M. JEVVETT, OF BUFFALO, NEW YORK, ASSIGNOR TO HIMSELF AND EDWARD MICHAEL, OF SAME PLACE.

MACHINE FOR JOINTING COMPRESSED BENT STAVES.

SPECIFICATION forming part of Letters Patent No. 335,074, dated January 26, 1886,

Application filed June 18,1585.

To all whom it may concern:

Beit known that I, EDWARD M. Jnwn'rr,

a citizen of the United States, residing in Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Machines for Jointing Compressed Bent Staves, of which the following is a specification.

The object of this invention is to provide the means for jointing staves that have been compressed and formed into the required shape to form a barrel before being cut or jointed, so that they will all fit together truly when put into a barrel, all of which will be l 5 fully and clearly hereinafter shown, described,

and claimed, by reference to the accompanying drawings, in which- Figure l is a perspective view of a suitable stave-jointer for illustrating my invention. Fig. 2 is a side elevation of the stave-rest.

. Fig. 2 is a top view of the restand bed upon which the stave is jointed. Fig. 3 is a perspective view of a stave after it has been compressed into shape preparatory to being jointed. Fig. 4 isastave formed andjointed, and Fig. 5 represents a cross'section through the stave-rest and bed, showing also an end view of a stave.

The side frames, a, of the machine are made of cast-iron, and put together by bolts in the usual way.

a2 is the cross-head, arranged in slides or openings c', so as to be capable of moving up and down in said openings. The cutter a is made inthe usual way, and secured to the cross-head by bolts c2. It is curved so as to give the proper bilge to the stave. To the cross-head are secured two vertical rods, a5. rlhey pass through holes in the crosspieces c, and rest on the sliding blocks c2. On each of these rods a5 is a spiral spring, g, each of which rests on the stationary crosspieces c.

To each block c2 is attached a pin, c, having a chain, c, connected therewith and to a cam, c5, (one on each side of the machine.) The cams c6 are rigidly secured to a shaft, e, mounted in bearings 7L in the sides of the machine.

' to its normal position.

Serial No. 169,028. (No model.)

To the shaft c is rigidly fastened a foot- 5o step, e'.

The bed of the machine, c, is secured to the frame by bolts a, in any well-known way.

e represents the rest or lower cutter, on which the stave rests while' being cut. (See 5 5 Figs. 2n and 5.) It is secured in place to the bed by bolts e5. rlhis rest is curved in a hori zon'tal direction, or on its side, as shown in Fig. 2, so as to give the required bilge to the stave and correspond with the curve of 6c the cutter ai. It is also curved on the top, so as to exactly fit the under side of the stave. (See Fig. 2.)

To the bed c3 is a vertically-adj ustable bar,

e, upon which one side of the stave rests while being cut. The object in making it adjustable is to provide the means for adj usting the angle at which the stave is cut, as will be seen, whereby the cut may be adjusted for barrels of different sizes or of dif- 7c ferent diameters. It is made adjustable by the bolts f"'.

In operating my invention a stave, f, is placed on the rest and bed of the machine. (See Figs. l and 5.) It will be noticed that this stave has already been compressed into the shape it would occupy when placed in a barrel. A pressure upon the foot-step will turn the shaft e and cams c5, thereby winding the chain ct around the cams and 8o forcing the cutter down onto the stave and jointing it. By removing the pressure from the foot-step the springs g bring the cutter up It will be seen that by the shape of the cams c5, which increase in diameter from the shaft to the point of the cam, the critter will be drawn down with an increasing velocity, thereby insuring a smoother cut toward the ends of the staves, and that, as the rest is curved upward so as to iit the 9c curve of the stave while being cut, the stave will be jointed exactly true, so that when put into a barrel all the joints will t true and close, whereas a bent stave cut on a straight rest would not be jointed exactly true.

I am aware of Patents Nos. 314,648, 197,394, and 262,770, and do not claim the inventions covered therein.

I claim as my nvention-y and a cutter having cutting-edge curved to In a. machine for joinbing staves, the comconform with the stave-rest, substantially as bination of a stave-rest; having a cutting edge, described.

a bei' curved to conform to the edge of the E. M. JEWETT. 5 stave, a top curved transversely andlongibudi- Vitnesses:

nally to correspond with the hollow side of JENNIE M. CALDWELL,

e ,compressed bent stave, an adjusting-bar, e, JAMES SANGSTER.

Leiters Patent Itis herebyT certified that Letters Patent No. 335,074, granted January 26, 1886, upon the application oi' Edward M. Jewett, of Buffalo, New York, for an improvement in Machines for Jointing Compressed Bent Staves, was erroneously issued to Edward M. Jewett, the inventor, and Edward Michaelg7 that said Letters Patent Jewett and Edward Michael being` assignees ofthe entire interest, and that the proper corrections have been made in the files and records of the case in the Patent Ofce and should be read in the Letters Patent that the saine may conform thereto.

Signed, countersigned, and sealed this 23d day of February, A. D. 1886.

[SEAL] H. L. MULDROW,

Acting Secretary of the Interior.

e Correction 'm Countersigned:

M. V. MONTGOMERY,

Commissioner of Patents.

MMM

should have been issued to Edward W. Jewett and Edward Michael, said Edward W.

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