US786115A - Method of making handled glassware. - Google Patents

Description

PATBNTED MAR. 28, 1905.

A. R. GRO'IZ. METHOD OF MAKING HANDLED GLASSWARE.

APPLIOATION FILED HOV.1,1904.

UNITED STATES Patented March 28, 1905.

PATENT OEEIcE.

ALBERT R. GROTZ, OF WELLSBURG, WEST VIRGINIA, ASSIGNOROF ONE- HALF TO EAGLE GLASS AND MANUFACTURING COMPANY, OF WELLS BURG, WEST VIRGINIA, A CORPORATION OF WEST VIRGINIA.

METHOD OF MAKING HANDLED GLASSWARE.

SPECIFICATION forming part of Letters Patent No. 786,115, dated March 28, 1905.

Application filed November 1, 1904.. Serial No. 230,942.

To (1 17 whom it may concern.-

Be it known that I, ALBERT R. GRoTz, of \iVellsburg, Brooke county, West Virginia, have invented a new and useful Method of Making Handled Glassware, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- IO Figure 1 is a vertical sectional view showing the pressing of the glass blank. Fig. 2 is asimilar view showing the operation of chilling the blank in the blow-mold, and Fig. 3 is a similar view showing the blowing of the article in the blow-mold. I

My invention relates to the manufacture of handled glassware, and is designed to overcome the difliculties heretofore experienced in making such articles.

If the handle is pressed with its lower end integral with the body of the blank, the glass will blow out very thin over this handle in the blow-mold and injure or destroy the article. If the handle is formed with its lower end totally disconnected with the blank-body, it will sag and become pinched between the parts of the blow-mold.

My invention overcomes these and other difiiculties; and it consists, first, in pressing a handled blank with a greater thickness of wall at or adjacent to the lower end of the handle than in the other parts.

It further consists in pressing the handle with a small pin connection between it and 3 5 the body, this pin being forced up into the handle during blowing.

It also consists in supporting the handle against sagging in inserting the blank in the blow-mold, in chilling the thicker portion of 4 the glass blank when blowing, and, further, in the steps hereinafter described and claimed.

In carrying out myinvention in connection with the apparatus of the drawings I first press a blank substantially as shown in the mold 2 of Fig. 1, this mold being cut away at the bottom of the handle portion, so as to thicken the wall of the pressed blank 3, as shown at 4. The handle 5 does not extend at its lower end to the body of the blank; but a small connection or pin 6 is pressed which 5 connects these parts. The blank, which may otherwise be of any suitable shape, is then placed in the blow-mold 7, (shown in Fig. 2,) this blow-mold having a projecting pin 8 on one-half which acts to support the handle against sagging during insertion and action in the mold. This projecting pin enters a corresponding recess in the other mold half when the parts are closed. After insertion and closing of the blow-mold the hand chilling and pressing device 9 is inserted, this being in the form of an iron or steel plug having a suitable handle and preferably formed with an exitchannel 10 to allow the hot air to pass out from the blank. The operator inserts this 5 plug and then tilts it, as shown in Fig. 2, so

as to chill the thicker portion of the glass below the handle to prevent its running down. This glass being thicker will retain its heat and be liable to droop or run downin themold. 7 The presser may also act to partially force out this thicker wall toward the wall of the mold and partially shape the blank. After the chilling device is removed the blow-head 11 is applied to the mold and the article blown out and expanded, as shown in Fig. 3 of the drawings.

The advantages of my invention result from the pressing of the blank with the thick wall below the handle to prevent excessive thinning of the wall at this point during expanding; also from the use of the small pin connection between the lower end of the handle and the body which holds the handle in position while the pin forces up into the handle 5 during expanding and prevents air entering which would make the handle hollow. The

chilling of the thicker Wall prevents drooping or running down, and the supporting of the handle avoids pinching it between the blow- 9 mold halves.

Many changes may be made in the form and arrangement of the mold, shape of the article, the handle connections, &c., without departing from my invention.

1 claim- 1. The method of forming handled glassware, consisting in pressing a hollow blank with a continuous wall having a thickened portion under the lower end of the handle, and then expanding the lower part of the hollow blank to final form; substantially as described.

2. The method of making handled glassware, consisting in pressing a blank with a small pin connection between the lower end of the handle and the blank, and then expanding the blank to final form; substantially as described.

3. The method of forming handled glassware, consisting in pressing a blank with a thick wall on one or more sides and a small pin connection between said walls, and the lower end of the handle, then expanding the blank, and forcing the pin upwardly into the lower end of the handle; substantially as described.

4. The method of forming handled glassware, conslsting in pressing a blank with a l with an integral handle, inserting the blank in a blow-mold, and supporting the handle against sagging, and then blowing the blank to final form; substantially as described.

7 The method of forming handled glassware, consisting in pressing a blank with a bridge connection between the lower end of the handle and the blank-body, and then expanding the body in a blow-mold; substantially as described.

In testimony whereof I have hereunto set my hand.

ALBERT R. GROTZ. Vitnesses:

JAMES PAINE, MINNIE E. LINToN.

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