US414451A - Machine for finishing glassware - Google Patents

Description

QNo Model.)

H. SEMPLE. MACHINE FOR FINISHING GLASSWARE.

Noll 1,451. Patented Nov. 5, 1889.

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UNITED STATES PATENT rricn.

HARRY SEMPLE, STEUBENVILLE, OHIO, ASSIGNOR OF TvVO-THIRDS TO AUGUSTUS H. 'HEISEY, OF OHARTIERS, AND JOHN NICHOLSON, JR, OF

ALLEGHENY, PENNSYLVANIA.

MACHINE FOR FiNISHlNG GLASSWARE.

SPECIFICATION forming part of Letters Patent No. 414,451, dated November 5, 1889.

Application filed November 15, 1888. Serial No. 290,895. (No model) To all whom it may concern.

Be it known that I, HARRY SEMPLE, a citizen of the United States, residing at Steubenville, in the county of Jefferson and State of Ohio, have invented or discovered a certain new and useful Improvement in Machines for Finishing Glassware, of which improvement the following is a specification.

According to the present practice, in the manufacture of that class or kind of glassware which requires the finishing of certain parts to a certain predetermined shape and size for the reception of specialfittings required in their use-as, for example, jars, lantern-globes, large-mouthed bottles, &c.- the article is formed by blowing in a suitable mold, removed therefrom, the blow-over broken off, and then placed in the annealingoven. As the piece of glassware is quite hot when removed from the mold, it frequently happens that the part requiring the special finish above referred to is so distorted in the handling incident to the removal of the blowover and the transfer of the article to the annealing-oven as to render it useless; and, further, after the article has been annealed, the part from which the blow-over has been removed, and which is generally the part of the article requiring the special fitting above referred to, must be ground down so as to re move the rough, uneven edges formed in breaking off the blow-over.

rough usage to which the article is subjected in selecting, packing, and subsequent use.

The object of the invention described herein is to provide for the shaping and reduction of that part of the article requiring the special fitting immediately after the removal of the blow-over and imparting asmooth, glazed surface to the portion from which the blow-over has been removed.

In general terms, the invention consists in the construction and combination of mechanical devices or elements, all as more fully hereinafter described and claimed.

In the accompanying drawings, forming a This grinding operation breaks up the outside glaze, thereby weakening the glass and rendering it more liable to crack and break in handling or other 1 pulley 4, whereby said shaft and its connections may be, rotated. On the shaft 3, near one end thereof, is arranged a cross-head 5, so connected to said shaftas', for example, by a pin passing through the head and a slotG in the shaftas to permit of a small longitudinal movement of the head on the shaft While rotating therewith, for the purpose hereinafter stated. In the cross-head 5 are formed two or more radial slots, in which are pivoted 7o levers B, provided with angularly-arranged arms 7 and 8, the arms 7 extending alongthe shaft 3 and thearms 8 radially to said shaft, as shown. The levers are slotted at their pivotal point, so as to permit of a small movement thereof substantially parallel with the shaft, as will be hereinafter stated. The arms 8 of the levers B are connected by-a loose joint to lugs or projections 10 on the sleeve 11, loosely mounted on the shaft, so as to be moved longitudinally thereof by the arm 12 engaging a groove in the sleeve 11, said arm being operated in one direction by the spring 13, interposed between the arm and the head-stock 2, and in the opposite direction by the lever 1i, mounted on a post 15 on the bed-plate 1 and connected to the arm by a rod 16. (See Fig. 1.) On the arms 7 of the levers B are attached forming-fingers 17, having their operative ends suitably shaped for operating on the glass, as will be hereinafter set forth. These fingers project forwardly through radial slots 18 in the circular plate 19, detachably secured to the front end of the shaft 3, the diameter of said plate being dependent on the outside diameter of the part of the article to be finished. On the arms 8, or the fingers attached thereto, as above stated, are secured weights adapted, when the shaft and cross-head are rotated, to pull the fingers outwardly and bear with greater or less force against the glass article being operated on, the portion of said article which it is desired to shape and finish having been previously inserted in the annular shapinghead 21. This mold-head, which is shown in the drawings of a shape or construction adapted to finish the neck and mouth of a glass jar, is firmly clamped in the rest or support 22, and is provided with a shoulder 23, adapted, in conjunction with the hooks 24 on the ends of the fingers, to form the seat for the seal-gasket of the jar, and with-an annular portion 25, adapted, in conjunction with the wiping part 26 of the fingers and the circular plate 19, to form what is termed the gasket-rim or neck of the jar. In manufacturing other articles, as lantern-globes, &c.;, the construction of the operative portions of the mold-head will be modified in ac cordance with the character and shape of the 1 portions of such other articles as are to be of the adjustment of said post along the bedplate. In the upper ends of the posts and .29-are formed notches for the reception of the handle-rod 27 of the snap 28. The lever 14 is preferably so arranged as to permit of its being operated by the hand of the operator while resting upon the snap-handle, as shown in Fig. 1.

In using my improved machine the jar or other article is removed from the formingmold in which it has been blown or pressed, placed in the snap 28, the blow-over on the end of the jar broken 0%, and the end of the jar heated sufficiently to render the glass plastic. The snap-handle is then placed in ,the notches in the posts 15 and 29 and pushed along so as to enter the heated end of the jar into the annular shaping-head 21 until the collar-30 on the handle comes in contact with the post 29, which has been previously adjusted .so as to permit of the proper adjustment of the end of the jar with relation to the annular shaping-head. Previous to the insertion of the jar into the annular shaping-head the fingers 17 have been held at the inner ends .ofthe radial slots in the plate 19 by the spring 13 acting through the arm 12, collar l1,"l=,ugs 10, and the arms 7, as will be read- -il;y understood. In addition to closing the fingers, the spring, operating through the j same elements or devices, serves also to push the levers B forward along the pivot-pins an amount equal to the length of the slots in from the shoulders 23, so as to admit of the hooks catchingagainst the inner surface of the'gas'ket-seats, regardless, within reasonable limits, of the thickness of glassin such seats or a sinking down thereof. The same function or operation can be effected by forming a slot, as at 6, in the shaft, so that the whole head 5 can move forward. As soon as the glass jar has been adjusted, as before stated, the operator shifts the lever 14, thereby compressing the spring 13 and shifting the arm 12 and sleeve or collar 11 to the left, thus permitting the centrifugal action of the weights 20 to move the fingers 17 outwardly against the gasket-rim of the jar, and at the same time drawing the fingers backward, so

as to bring the hooks 24 against the gasketseat of the jar. This action of the fingers causes the glass to conform to the operative portions of the annular shaping-head,-,a1'1d also press the edge of the gasket-rim against the circular plate-19, which has previously been adjusted within the annular shaping-- head, thus imparting a smooth uniform surface to such edge.

The heating of the portion of the jar to be finished, which is also the portion from which the blow-over has been broken off, restores the glaze, and as the glass becomes cold and rigid during the shaping and finishing opera tions there is no liability to distortion during its removal to and passage through the annealing-oven.

It will be readily understood by those skilled in the art that in lieu of rotating the fingers continuously in one direction they may be given an oscillating'or back-,and-forth rotary movement. The outward movements of the fingers may be effected by means of su'i-tably-arranged springs, operative either directly upon the fingers themselves or upon the sleeve or collar 11. If desired, the fingers may be formed integral with the arms 7 of the levers, and said arms may be made sufiiciently device is incapable of so cutting off the blowover as to prevent the formation of a fin around the neck end of the jar; and, further, as the fingers are moved outwardly a certain predetermined distance, it is evident that when the amount of glass placed in the mold is small, and the neck in consequencethereof not entirely filled out, the fingers will not have any appreciable effect on the inner-surface of the neck, and when an excess of glass is placed in the mold, and the walls of the neck are consequently abnormally thick, that the fingers will be forced into the glass and when rotated will tendtotear the glass apart at that point, whereas in'the machine herein described, the fingers being moved outwardly by centrifugal force, they accommodate themselves automatically to the thickness of the neck andalways operate thereon.

I am aware of the construction shown in Fig. 6 in Letters Patent No. 314,975, dated March 31, 1885, wherein lever-arms are represented as being weighted,so as normally to hold the formers away from the glass to be operated on; but it will be observed that the weighted arms referred to in practical use will make contact with the upper extended rim or mouth of the mold, and thus be guided in their movements, so as to preclude any useful results from centrifugal action; and it will also be observed in said Fig. 6 thatat the time when the formers are operating on the glass the centers of gravity of the weights have passed the line passing through their pivoting-points, and that the centrifugal effect, if there be any, tends to prevent the formers from performing their function rather than aid them, For these reasons Patent No. 314,97 5 does not contain the invention hereinafter claimed.

I claim herein as my invention 1. In a machine for forming glassware, one or more revolving or oscillating fingers weight ed with reference to obtaining an outwardlyoperative movement under centrifugal action, substantially as set forth.

2. In a machine for forming glassware, the, combination of an annular shaping-headv and revolving or oscillating fingers operative inside the article and weighted with reference to obtaining an outward operative movement under centrifugal action,subst-antially as set forth.

3. In a machine for forming glassware, the combination of oscillating or revolving fingers, a rotating plate, and an annular shap- 'ing-head, substantially as set forth.

4. In a machine for forming glassware, the combination of an annular shaping-head and revolving or oscillating fingers operative inside of the article and movable longitudinally While operating upon the article, substantially as set forth. 1

5. In a machine for forming glassware, the combination of an annular shaping-head, a rotating plate, and revolving or oscillating fingers movable longitudinally with reference to the rotating plate, substantially as set forth.

6. In a machine for forming glassware, the combination of revolving or oscillating fingers operative inside the article and an annular shaping-head having a milled or roughened surface, substantially as set forth.

7. In a machine for forming glassware, the combination of revolving or oscillating fingers operative inside the article and movable outwardly by centrifugal action, a spring-actuated collar or sleeve for closing said fingers,- and an annular shaping-head, substantially as set forth.

8. In a machine for forming glassware, the combination of a revolving or oscillating crosshead, slotted as described, levers having angularly-arranged arms 7 and S, pivotally mounted in said cross-head, the arms 7 being provided with suitable shaping-fingers operative inside the article, a movable collar or sleeve connected to the arms 8 and adapted to control the movements of the levers, and an annular shaping-head, substantially as set forth.

In testimony whereof I have hereunto set my hand.

HARRY SEMPLE. \Vitnesses:

DARWIN S. WoLcorr, W. B. CORWIN.

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