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.)
Publication of NL146945CpublicationCriticalpatent/NL146945C/xx
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B23/00—Re-forming shaped glass
C03B23/04—Re-forming tubes or rods
C03B23/07—Re-forming tubes or rods by blowing, e.g. for making electric bulbs
C03B23/073—Vacuum-blowing
C03B23/076—Shrinking the glass tube on to a mandrel
B—PERFORMING OPERATIONS; TRANSPORTING
B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
B29C33/00—Moulds or cores; Details thereof or accessories therefor
B—PERFORMING OPERATIONS; TRANSPORTING
B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
B29C49/42—Component parts, details or accessories; Auxiliary operations
B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
B29C49/4278—Cutting
B—PERFORMING OPERATIONS; TRANSPORTING
B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
B29D23/00—Producing tubular articles
C—CHEMISTRY; METALLURGY
C03—GLASS; MINERAL OR SLAG WOOL
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B23/00—Re-forming shaped glass
C03B23/04—Re-forming tubes or rods
C03B23/06—Re-forming tubes or rods by bending
C03B23/065—Re-forming tubes or rods by bending in only one plane, e.g. for making circular neon tubes