US852097A - Machine for shaping glass. - Google Patents

Description

N0. 852,097. PATENTED APR. 30, 1907. W. B. BOOK.

MACHINE FOR SHAPING GLASS.

APPLICATION FILED AUG. 11. 1906.

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No. 852,097. PATENTED APR. 30, 1907.

W. E. BOOK.

MACHINE FOR SHAPING GLASS.

APPLIOATION FILED AUG. 11.1906.

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No. 852,097. PATENTED APR. 30, 1907. W. E. BOOK.

MACHINE FOR SHAPING GLASS.

APPLIOATION FILED AUG-11. 1906.

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APPLICATION FILED AUG. 11. 1906.

PATENTED APR. 30, 1907.

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WILLIAM EMIL BOOK, OF TOLEDO, OHIO, ASSIGN OR TO THE TOLEDO GLASS COMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

' MACHINEQFOR SHAPING GLASS.

I Application filed August 11 Specification of Letters Patent.

,1906. Serial No. 330,166.

Patented April 30, 1907.

To all whom it may concern:

Be it known that I, WILLIAM EMIL Boon, a citizen of the United States of America, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Machines for Shaping Glass, of which the following is a specification, reference being bad therein to the accompanying drawings;

The invention relates to new and useful improvements in machines for shaping glass, and relates particularly to improvements upon the type of machine shown in Patent No. 766,768, to M. J. Owens,dated August 2, 1904.

The machine herein shown is of the construction illustrated in an application for United States Letters Patent filed by VVilli am E. Bock on May 2, 1905, Serial Number 258,562.

The invention consists in mechanism for filling a blank mold with molten glass, and. in subsequently blowing the molten glass tightly into said mold. Further, in mechanism for blowing out a portion of thebottom of the blank for the purpose of obliterating the scar, scale or glaze formed by the cutting ofi' knife at the bottom of the blank mold, and further in mechanism for projecting a core or plunger into the neck of the finished 1 article or bottle, at the time when the neck molds and blowing molds open so as to prevent the distortion of the bottle because of any adherence of glass thereto, and further in the construction, arrangement and combination of the'various parts, as more fully hereinafter described and particularly pointed out in the claims.

In the drawings, Figure l is a side elevation of one half of such a machine as shown in the previous application referred to, partly in section, showing the mold in position as ready to gather a blank and the blowing mold lowered out of the way; Fig. 2 is a section through the blank mold showing the same as sucked full of glass and the cutting oil' knife as having severed the glass in the mold from that in the tank; Fig. 3 shows a section similar to Fig. 2, with the core or plunger withdrawn from the neck of the blank, and the first puff of air blown therein for the purpose of forcing the blank tightly against the walls of its mold; Fig. -1 is a section similar to Fig. 3, the cutting ofi knife having been withdrawn, and pufi of air not shown, so as to rotate the various parts having been admitted into the blank to force out the bottom in the teat or projection; Fig. 5 is a section through the blowing head, neck mold and also through the blowingmold, which has been moved into position, showing in full lines the blank and the upset projection at the lower end thereof, and in dotted lines the finished bottle blown. to shape Within the mold; Fig. 6 shows the finished bottle with the core or plunger projected therein and the neck molds and blowing molds partially open; Fig. 7 is a plan view of thecani for operating the core or plunger to perform the various movements described; Fig. 8 is a plan view of the cam fon f'f o to cool; numeral 5 the point where the molds open and deliver the bottles from the machine.

A represents the standard upon which the operating parts are supported and revolve. The operating parts are carried by a frame comprising the upper spider B, the lower spider O, suitably connected together and driven by suitable actuating mechanism,-

carried thereby around the standard A.

D is an outwardly projecting arm to which the air and vacuum connections are made, and which for convenience of description I will call the blowing head arm, such connections being made at the outer end in the portion Iletter D. This arm is connected to and travels with the rotary frame. Beneath this blowing head are the sectional neck molds E, suitably supported to open and too close at the proper time, and the sectional blank mold F carried on the levers F, which also have suitable mechanism for opening and closing the same at the proper times.

G is the sectional blowing mold, carried on 1o 5 the hinged frame G, having the roller or car rlage II running on the cam track II, which raises and lowers the blowmg molds to and I l from the blowing head, and this blowing mold is provided with suitable means operated by the roller wrist a running in the camway I) for opening and closing the section of the mold. v

These parts are all of old and usual construction, and form no part of my present invention, and therefore I do not deem it necessary to further describe them.

I is a core or. plunger adapted to be projected through the blowing. head, and with its lower end projecting into the cavity of the blank mold, as shown in Fig. 2, and to be withdrawn therefrom as shown in Fig. 5. This core or lunger is connected to the bell crank lever which is connected by the link J with the roller wrist J engaging a camway K, stationarily secured on the standard A. This camway is of the shape shown in Fig. 7, and its shape will cause the bell crank J to be rocked, and thecore or plunger to be raised and lowered, as will be hereinafter described.

L is an air supply pipeadmitting air under pressure to the blowing head, and this pipe has inita suitable valve M, which has a spring tending to normally close it. This valve is opened to admit air" under pressure to the blowing head by the bell crank lever N, held normally in the position shown at the top of Fig. 1 by the spring N, and adapted to be rocked to operate it by a cam O, with which a roller 0 on the bell crank lever engages. This cam is of the shape shown in Fig. 8. I

As is well known, in this type of machine,

at the station marked 1, the blank molds and neck molds being closed and arranged as shown in Fig. 2, the lower end of the blank mold is brought into close proximity to or dipped into the glass in a tank, and at this point the cavity of the mold is connected with a vacuum-producing means, which will suck the glass into the blank mold .and fill the same, the upper end of the blank being shaped, and an initial blowing cavity being formed therein by the core or plunger I This core or plunger at this point is lowered by the part c of the camway K. As the blank mold lifts and recedes from the tank, a cutting-off knife, indicated at P, Fig. 2,

passesacross the lower end of the blank mold and severs the glass in the tank from that in the mold.

It frequently happens, in gathering glass in such a machine, that a slight leak in the molds, or some other cause, while filling the mold, will not force the glass tightly into the crevices or corners thereof, and thus may not properly finish or shape the neck portion. In order to obviate this difliculty I provide means for admitting air under pressure into the blank for a short interval.

As the blank mold travels from the position marked 1, the camway K is so shaped as to withdraw the core or plunger I and valves are shifted to connect the passageway d occupied by this core or plunger when in its lowered position with the pipe L. As soon as this is done the valve L1 is opened. by the projection eon the cam O for just an instant, allowing air under pressure to enter the ini tial cavity formed by the core or plunger in the top of the blank, thus blowing the blank tightly into the mold, causing the molten glass to enter all the fine crevices or grooves therein, and then perfectly shaping the neck of the bottle. This is done as shown in Fig.

3, while the cutting? off knife P is still in position so that the glass will not be blown out at the lower end of the blank. The cutting ofl knife is next Withdrawn so as .to leave the lower end of theblank moldopen, and then the air valve is again opened so as to deliver a puff of air into the blank. I This is done by the projection h on the cam O. This puff of 'air will blow out the projection or teat H, as

shown in Fig. 4.

It has been found that With such a machine as this the cutting ofi device or knife chills the bottom'of the blank much more,-

;than any other part of the blank is chilled, with the result that a hard scale or glaze is formed at this point, which, when the bottle is blown, forms a scar or ring on the bottom of thebottle, which seriously impairs its ap-" pearance.

I have found that if I blow out the bottom 6f the blank as shown in Fig. 4., it will thin this glaze, thus formed, and the heat of the molten glass inside will very quickly soften it or re-melt it.

I find it desirable in using this mechanism for blowing out a portion of the blank through the bottom to make the blank slightly shorter thanthe bottle which is to be made therefrom.

What I claim is, a v

1; In a glass-shaping machine, the comblnation of a blank mold, mechanism for shaping the blank therein, means for forcing a portion of the glass of the blank out of the end of the blank free from the blank mold,

and means for blowing the blank to form.

2. In a glass-shaping machine, the epmbi nation of a blank mold, mechanism for shaping a blank therein, means for forcing a portion of the glass of the blank out of the end of the blank free from the blank mold, means for upsetting this blown-out portion, and means for blowing the blank to form.

3. In a glass-shaping machine,'the combination ofablank mold, a cut-off for the open 'end thereof, means'for-projecting a portion of the glass of theblank at the cut-off end,

and means for finally shaping the blank to form.

4. In a glass-shaping machine, the combination of a blank mold, a cut-oif for the open end thereof, an air connection to the nation of a blank mold, a core or plunger for l opposite end thereof, means for causing a puff of air to enter the blank from the air connection toblow out a portion of the blank at the cut-off end, and means for blowing the blank to form.

5. In a glass-shaping machine, the combination with a blank mold of a blowing mold,

and a core or plunger, and means for projecting said core or plunger into the neo of the shaped article while held by said blowing mold.

6. In a glass-shaping machine, the combi means for blowing the article therein, and

mechanism for projecting the core or plunger into the neck of the shaped article during the opening of the blowing mold.

In testimony whereof I afiix my signature in'presence of two Witnesses.

WILLIAM EMIL BOOK. Witnesses:

R. LA FRANCE, S. E. BUTLER.

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