US226889A - Thomas w - Google Patents

Description

a T. W. SYNNOTT.

Machine for Finishing the Necks of Bottles.

No. 226,389 Patented April 27,1880.

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THOMAS W. SYNNOTT, OF WENONAH, NEW JERSEY.

MACHINE FOR FINISHING THE NECKS OF BOTTLES.

SPECIFICATION forming part of Letters Patent No. 226,889, dated April 2'7, 1880.

Application filed February 12, 1880.

To all whom it may concern:

Be it known that I, THOMAS W. SYNNOTT, of enonah, in the county of Gloucester and State of New Jersey, have invented a new and useful Improvement in Machines for Finishing the Necks of Bottles, of whichthe following is a specification, reference being had to the accompanyin g drawings, in which Figure 1 is a top or plan view of the machine embodying my invention. Fig. 2 is a central longitudinal vertical section in line a- :0, Fig. 1. Fig. 3 is a transverse section of a portion in line y y, Fig. 2.

Similar letters of reference indicate corresponding parts in the several figures.

- My invention consists of a plug adapted to enter the neck of a bottle and expand the metal thereof preparatory to the formation of the lip of the bottle.

It also consists of lip-formin g jaws connected to a mechanically-operated mandrel or shaft, whereby the work of finishing the neck and forming the lip may be expeditiously accomplished.

Referring to the drawings, A represents a frame, on which is mounted a mandrel or shaft, B, carrying at one end a pulley, B, and at the other end a head, 0, to whose outer end is fixed a plug, D, and to which are pivoted jaws E, whose heads a eircumscribe the plug D, and each has on its inner face, near the inner termination of said plug, an offset or shoulder, b. The mandrel or shaft B is hollow, and the plug D is divided in a longitudinal direction to form sections (1 d, which are hinged together so that they may be separated, for which purpose I employ a sliding rod or shaft, F, which is passed through the hollow shaft B, and has its point adapted to enter between the two sections (Z d, the inner faces of which are properly grooved to receive said point. It is evident that when the point presses against the sections they separate; but this may also be accomplished by forming a button or head on the rod and a way or slot in one section, the button or head riding within or behind the walls of said way, and thus serving to move out said section when the rod is advanced.

The advantage of employing said button or head is that it causes the closing of thesection by a positive motion when the rodFis returned to its first position. The inner ends ofthejaws E are turned inwardly or have cam, bevel, tapering, or curved faces, as at 6, against which bears the inner coincident face, f, ofan annulus or ring, G, which is secured to a carriage, H, consisting of longitudinal pieces g g, mounted on the frame A, and an end vertical connecting-piece, h, to which motion may be imparted by a lever, treadle, or other mechanism, or by hand or other power, said piece 71 carrying a screw, h, for adjusting the rod F.

The rod F has its end opposite to the point or button provided with a head, k, which bears against the screwh, so that the rod is advanced by the carriage H, and said rod is so gaged or adjusted that the jaws E are operated in advance of the expansion or opening of the plug D. The return motions of the carriage H and rod F are accomplished by means of springs l L, suitably applied, and the heads of the jaws E areforced toward each other,and thus against the metal, by means of springs m m, properly located.

The operation is as follows: The shaft B is rotated by any suitable power applied to the pulley B or elsewhere. The carriage H is ad.- va-nced and the jawsE are pressed by the annir lus G, so as to separate the heads a from the plug D. The neck of the bottle is heated to a soft state and the bottle, properly held by a pontil or other tool, is then presented to the plug D, so that its neck receives said plug the entrance of the neck being limited by the back plate,D, at the base or inner termination of the plug D. The carriage H continues its motion, and the rod F operates the plug 'D, so as to expand it or separate its sections, thus enlarging the neck of the bottle'and expanding the metal. The carriage H being released returns to its first position, the plug contracts, and the heads of the jaws close against the metal. As said jaws rotate the offsets or shoulders b raise the metal and form the lip of the bottom, and the pressure of the jaws causes the metal of the neck to assume the form of the closed plug, thus finishing the neck. The carriage is again advanced, and the heads of the jaws separate, so as to clear the lip of the bottle, and the removal of the bottle may then be accomplished. The jaws are again opened, and another bottle is applied to the plug, and the other operations are repeated.

The necks of the bottles will be found to be uniform, and the work is performed in an eX- peditious manner. The contour of the offsets b may be varied relatively to the shape desired to be imparted to the lip of the bottle.

I am aware that machines for finishing the necks of bottles have been provided with arotating hollow shaft carrying jaws for closing upon the exterior of the neck and shaping it, and an expansible plug for spreading the in terior of the neck, the jaws being operated by a collar and a spring, and the plug being eX- panded by a reciprocating rod within said shaft. I do not claim such construction or operation of said machines.

What I do claim is-- 1. The collar G,in combination with carriage H, consisting of longitudinal rods 9 g and end piece, h, the reciprocating rod F, the rotating shaft B, the expansible plug D, and the jaws E E, said rod and hollow shaft and the rear ends of said jaws being within said collar.

2. The sectional expansible plug D, provided with an internal longitudinal guideway, in combination with a reciprocating rod, F, which carries a button, by the engagement whereof with said gnidewa-y the said plug is opened and closed by positive force. ,7

T. W. SYNNOTT.

Witnesses JOHN A. WVInDERsHEIM, J. H. JEFFENs.

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