US79786A - Improved glass-pbessing machine - Google Patents

Description

M. SWEENEY. GLASS PEESSING MACHINE.

No. 79,786. Patented July 7, 186-br-- Ewen/ az- W e M w Quinn gram gaunt @ffirr.

MICHAEL SWEENEY, OF WHEELING,-WEST VIRGINIA, ASSIGNOR TO SWEENEY, BELL, AND GOMPAN Y, OF SAME PLACE.

Letters Patent No. 79.7 86. dated July 7 1868.

IMPROVED GLASS-PRBSSING MACHINE.

TO ALL WHOM IT .MAY CONCERN:-

Be it known that-I, MICHAEL SWEENEY, of Whe'eling,'in the county of Ohio, and State of West Virginia, have invented a new and useful Improvement in Machines for Moulding and Pressing Glass; and I do hereby declare that the following is a full, clear, and exact description of the same,-referencebeing had to the annexed drawings, malring part'of this specification. in which Figure 1 is a perspective view, and

Figure Z'isan elevation of the air-blast mechanism.

The is letters indicate identical parts in both the figures.

My invention consists in the application of'cnrrents of air directed by pipes leading from a fan, or other equivalent machine, to the plunger and surface of moulds used in glass-pressing machines, for the purpose of cooling the same.

In ti: manufacture of pressed glassware, great inconvenience is experienced from the. heating of themculd and plunger, causing a scum or shell to form on the mou-ld, which necessitates its cleansing after being used a few hours. 1 It is also necessary to resort to the hammering process to ,deliver the glass, which soon injures the mould. To obviate these difiiculties, I apply strong blasts of air to the plunger, and also to, the surface of'the moulds, thereby keeping them at a uniform temperature, preventing theformation of a shell, and effecting the easy delivery of the glass.

I have illustrated in the drawingsone forin of glass-pressing machine, and one arrangement of a pressureblast. The same principle may be applied to other form's of presses, or by means of any other form of pressurehlast.

My invention does not consist in the mechanism, which is not n'ew, hut in the combination of a glass- )ressing machine and a machine for producing blasts of air, said blasts being applied for the purpose herein iet forth. 7

In the annexed drawings, A is the bed, upon which the press and mould are placed; B is the frame of the press, and O theplunger, 'whichis forced into the mould by means of the rods, D D, attached tothe cross-head and actuated by the eccentrics E. These eccentrics are turned by alever in the ordinary manner. F is a head, through which the plunger passes, which has an elastic hearing against springs. This elastic head forms the top of the article in the mould. G isa mould, such asis used-in pressing glass. It slides on the bed A. I is a fan, for creating a blast of air. ,It may be driven by a belt passing around the pulley K and the whirl I on the fan shaft. The wind-from the fan is driven into the receiver L, from which it is conducted by means of two tubes, M and N. The tube M is so placed as to dischargeits blast directly on or into the mould G when drawn from under the press. The tube N leads under the table, opening upward immediately under the-plunger, so as to' direct the blast therefrom against the latter. I

What I claim as my invention, and desire tcse cure by Letters Patent, is-

1'. The combination of a machine for pressing glass and a pressure-blast, the tubes leading from which are so arranged that cold-air currents, generated by the blast, shall be directed against the surfaces of the pressingmechanism, substantially as and for the purpose set forth.

2. So arranging the pipes M and N, leading-from the pressure-blast I, as to direct the currents of air to the mould G, and against the plunger G, substantially in the manner set forth.

In witness whereof, I have sienedmy name to this specification in the presence of two subscribing witnesses.

MICHAEL SWEENEY.

Witnesses:

S. P. Hrnnnnrn, Jss. P. WILKINSON.

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