GB662041A - Improvements in or relating to calculating machines - Google Patents

Improvements in or relating to calculating machines

Info

Publication number
GB662041A
GB662041A GB28711/49A GB2871149A GB662041A GB 662041 A GB662041 A GB 662041A GB 28711/49 A GB28711/49 A GB 28711/49A GB 2871149 A GB2871149 A GB 2871149A GB 662041 A GB662041 A GB 662041A
Authority
GB
United Kingdom
Prior art keywords
card
punches
decks
punch
punching
Prior art date
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
GB28711/49A
Other languages
English (en)
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.)
British Tabulating Machine Co Ltd
Original Assignee
British Tabulating Machine Co Ltd
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
Priority claimed from US61662A external-priority patent/US2566931A/en
Application filed by British Tabulating Machine Co Ltd filed Critical British Tabulating Machine Co Ltd
Publication of GB662041A publication Critical patent/GB662041A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
    • B42F13/00—Filing appliances with means for engaging perforations or slots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
    • B42F13/00—Filing appliances with means for engaging perforations or slots
    • B42F13/12—Filing appliances with means for engaging perforations or slots with pillars, posts, rods, or tubes
    • B42F13/14—Filing appliances with means for engaging perforations or slots with pillars, posts, rods, or tubes with clamping or locking means

Landscapes

  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Credit Cards Or The Like (AREA)
  • Input From Keyboards Or The Like (AREA)
GB28711/49A 1948-11-23 1949-11-09 Improvements in or relating to calculating machines Expired GB662041A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US61662A US2566931A (en) 1948-11-23 1948-11-23 Record card punching machine
US234802A US2654812A (en) 1948-11-23 1951-07-02 Alphabetic keyboard controller

Publications (1)

Publication Number Publication Date
GB662041A true GB662041A (en) 1951-11-28

Family

ID=26741346

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28711/49A Expired GB662041A (en) 1948-11-23 1949-11-09 Improvements in or relating to calculating machines

Country Status (4)

Country Link
US (1) US2654812A (enrdf_load_stackoverflow)
FR (1) FR1057769A (enrdf_load_stackoverflow)
GB (1) GB662041A (enrdf_load_stackoverflow)
NL (1) NL150058B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816609A (en) * 1954-04-12 1957-12-17 Mergenthaler Linotype Gmbh Tape perforating machine
US3150351A (en) * 1957-09-10 1964-09-22 Ibm Computer manual keyboard entry
US3118024A (en) * 1959-02-25 1964-01-14 Soroban Engineering Inc Automatic switching mechanism including latching means
US3494550A (en) * 1967-01-13 1970-02-10 Ibm Universal keyboard

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1685329A (en) * 1925-02-18 1928-09-25 Charles J Lynch Alarm mechanism
US2203355A (en) * 1938-07-23 1940-06-04 Remington Rand Inc Statistical card punch
US2523768A (en) * 1945-10-02 1950-09-26 Knutsen Knut Andreas Keyboard for electrically controlled accounting or card punching machines

Also Published As

Publication number Publication date
FR1057769A (enrdf_load_stackoverflow) 1954-03-10
NL150058B (nl)
US2654812A (en) 1953-10-06

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