Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3073820A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hume Pipe & Concrete Construct
Original Assignee
Hume Pipe & Concrete Construct
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B19/00—Other methods of shaping glass
C03B19/04—Other methods of shaping glass by centrifuging
Abstract
176,058. Amphlett, H. P., and Hume Pipe & Concrete Construction Co., Ltd. Oct. 30, 1920. Stairs. -In the moulding of vitreous materials contrifugally at high speeds so as to produce cylinders, hardened outer surfaces may be formed so as to render the finished product suitable as steps. For this purpose the rotating square mould l enclosing the vitreous material k is supplied with carborundum. The mould is formed with the internal projections m to divide the enclosed rectangle into two steps.
GB3073820A1920-10-301920-10-30Improvements in or relating to manufacturing objects from vitreous material
ExpiredGB176058A
(en)
Machine for intaglio molding of all materials capable of being molded. its application in the manufacture of concrete blocks and hollow or perforated agglomerates