Hemingray glass threading patent

[Trade Journal]

Publication: Journal of the Society of Glass Technology

Sheffield, England
vol. 12, no. 46, p. 147,165, col. 1

ABSTRACTS AND REVIEWS

VIII. — Glass Feeding, Forming and Conveying Machines.

373. Machine for Pressing Internally Threaded Ware. M. K. HOLMES, Muncie, Indiana, Assignor to THE HEMINGWAY [sic] HEMINGRAY GLASS COMPANY, Muncie, Indiana (U.S.A. Pat. No. 1,642,658, Sept. 13th, 1927. Filed Dec. 1st., 1924, No. 753,220).—Means were disclosed whereby in a press machine for making internally threaded glass insulators, the threaded plunger was unscrewed from the chilled glass at two rates, slowly with great force for a fraction of a turn, and then much more quickly with less force as the resistance diminished. Provision was also made for transferring the plunger pins, so removed, to a receiving pocket that fed them again to the plunger arm, rotation of the mould table being interrupted if at any time the plunger pins were missing, or left in, as the case might be, at the pressing and pin removal stations respectively. M. P.

Keywords:	Hemingray
Researcher notes:
Supplemental information:	Patent: 1,642,658
Researcher:	Bob Stahr
Date completed:	August 2, 2009 by: Bob Stahr;