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
GB23937/31A
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.)
JOHANN SIEGFRIED MARTIN NUERNB
Original Assignee
JOHANN SIEGFRIED MARTIN NUERNB
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.)
Filing date
Publication date
Application filed by JOHANN SIEGFRIED MARTIN NUERNBfiledCriticalJOHANN SIEGFRIED MARTIN NUERNB
Publication of GB382694ApublicationCriticalpatent/GB382694A/en
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
B21D22/20—Deep-drawing
B21D22/30—Deep-drawing to finish articles formed by deep-drawing
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Sealing Battery Cases Or Jackets
(AREA)
Abstract
382,694. Making zinc battery-cups. NœRNBERG, J. S. M., Quickborn, Holstein, Germany. Aug. 25, 1931, No. 23937. Convention date, June 18. [Classes 83 (ii) and 83 (iv).] A zinc container for dry batteries is formed by cupping a blank in stages from that in Fig. 3 to Fig. 6 and then rolling the wall to final size as in Fig. 7.
GB23937/31A1931-06-181931-08-25Improvements in and relating to the production of zinc containers for dry batteries
ExpiredGB382694A
(en)