US255384A - Chuck for holdinq bottles - Google Patents

Description

(No Model.)

W. FOX.

l MHCK-F01?.V HOLDING BOTTLES. Np. 2t` 5,.3.81..` Patented Mar. 21,1882.

UNTTED STATES PATENT 'Ormea'.A

WILLIAM FOX, OF sTEUBENVILLE, OHIO, AssIeNOR To nrMsELF AND y ROBERT JKBEATTY, O F sAME PLAGE.

CHUCK FOR' HOLDING BOTTLES.

SPECIFICATION forming part of Letters Patent No. 255,384, dated March 21, 1882,

Application filed .January 23, 18S-2. (No model.)

To all whom it may concern: l

Be it known that I, WILLIAM FOX, a citizen ofthe United States, residing at Steubenville, county of Jefferson, State of Ohio, have invented or discovered anew and useful Improvement in Chucksfor Holding Glass Bottles; and I do hereby declare the following to be a full, clear, concise, and exact description thereof',

reference being had tO the accompanying draw- 'glass bottles for cutting by means of a chuck lined or hushed with cork, which was turned and fitted interiorly to receive abottle of given form and size. Owing to the fact that such bushing is but slightly elastic and covers the/ whole or greater part of the side wall, it is adapted for use only with the heavier grades of ware; also, in such use it is found imp0ssi ble to insert all the bbttles an equal distance into the chuck. This is due largely to inequalities in shape'and size produced in blowing the bottles, which it is practically impossible to avoid. It has consequently been customary to mark with chalk or otherwise the plane for cutting the bottle, which mark served as a guide. Workmen, however, seldom cut to such mark with precision, owing in part to difficulty in holding the wire or cutting device with accuracy. Thus articles intended for a given grade or set seldom agree with each other in height. For the heavier and coarser grades of blown Ware such chucks answeravery useful purpose, although their use is attended with inconvenicnce and difculties. For light and delicate grades of Work they are unsuitable and cannot be used with practical success. For example, ifa bottle with very thin light walls be inserted in such chuck sufciently tightto beheld thereby, the walls of the bottle will be bent or compressed in places unless a perfect fit is secured within the bushing. This, however, is not practically attainable, and when such bent or compressed bottle is cut a crack or break is almost inevitable. This is due in part to the unequal pressure, and in, part to a tendency in the cutting-wire (the same being pressed upon the bottle with a stick) to catch upon the rim of the article.

The purpose of my invention is to obviate these difficulties in the way of cutting light and delicate ware by means of a chuck that will receive bottles of the usual range of variation in form to a uniform depth and holding the same with uniform pressure upon a comparatively narrow belt or zone 5 and in so doing l provide better means than heretofore for severing or cutting the bottles with precision. To this end I make use of a chuck, A, which is secured by screw-socket B to a rotary shaft, C, the latter being journaled in any suitable bearings and rotated when in use at high speed by any suitable means.

Within the head of the chuck is made a chamber, ai, corresponding approximately to the form ofthe bottle E to be held therein, but of somewhat greater diameter. To the side wall ot' this chamber are secured one or more bands, c c', of comparatively thick, soft, and elastic felt, cloth, soft rubber, or equivalent soft and elastic material. These bands may be fastened to the wall by any suitable paste or adhesive material applied with care; but as such paste or adhesive material, when dry, is apt to render the bands less elastic, they should be renewed frequently for delicate work. On account of this difficulty I prefer to make shallow recesses or grooves e in the wall of the chamber, in which the bands c c are seated. The thickness of the bands should be in excess ot' the depth of the grooves, so as to afford bearing for the bottle and prevent its sides from touching the metal wall of the chuck.

With small bottles for punch-tu mblers and similar articles one elastic band will be sufficient, and it may be placed either at the mouth or farther in toward the base or inner end. I prefer to place it near the base of the bottle, like the band c, Fig. 2, so that it may bear upon the bottle where the glass has more body and strength. With long bottles, however, two bands may be used to advantage, one being near the mouth,`as band o', Fig. 2. The length IOO of chamber a is equal to the full length of the nished article F. A rim or rest, a', is made at the inner end of the chamber, against which the base of the bottle rests.

Owing to the soft elastic character of the bands c c' and the small surface-contact between them and the bottle, the latter can be inserted the full length of the chamberwithout causing undue or unequal pressure upon the bottle, notwithstanding the variations in form and size which usually occur in making a. given class of ware. Consequently the rim a2 ofthe chuck may he taken as a gage or measure for cutting the bottle, and the preliminary made, and the work can be done more quickly than heretofore.

I claim herein as my invention-'- 1. A chuck for holding glass bottles, having on its inner Wall one or more bands of felt,

cloth, or equivalent soft elastic material, sub stantiall y as and for the purposes set forth.

2. A chuck for holding glass bottles, having in its inner face or chamber wall one or more grooves, e, with a soft, elastic band seated therein, such band or bands having thickness in excess of the depth of groove, substantiallyY as set forth.

3. A chuck, A, for holding glass bottles, having a comparatively narrow band, c, of soft elastic material, secured to its inner chamberwall near its inner end, substantially as described, whereby the bottle is held by uniform pressure applied near its base.

4. The chuck A, for holding glass bottles, having chamber a therein equal in length to the desired length of nshed article7 with a rest or stop, a', at the inner end otm such chamber and one or more comparatively narrow bands, c o', of softelastic material, secured to the side wall ot' such chamber, substantially as and for the purposes set forth.

In testimony whereof Il have hereunto set my hand.

VILLA M FOX.

Witnesses J. W. JORDAN, T. B. COULTER.

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