公开(公告)号：US3535766A

公开(公告)日：1970-10-27

申请号：US3535766D

申请日：1967-12-12

Applicant: IBM

Inventor： HYMES LAWRENCE

IPC: B21D26/055 ,  B21D39/03 ,  B23P17/00

CPC classification number: B21D26/055 ,  B21D39/03 ,  Y10T29/49805 ,  Y10T29/4984 ,  Y10T29/49902 ,  Y10T29/49915 ,  Y10T29/49925 ,  Y10T74/2186

公开(公告)号：US3612242A

公开(公告)日：1971-10-12

申请号：US3612242D

申请日：1968-02-01

Applicant: IBM

Inventor： CASSELL JOHN N ,  ENGLE VENCIL D ,  HYMES LAWRENCE ,  ROLLER DONALD C

IPC: B41J31/10 ,  B41J33/14

CPC classification number: B41J31/10

Abstract: Typewriter carbon ribbon is automatically attached to a takeup reel by the combined provision of: (1) a flexible camming plate that creates significant friction interaction between the reel and the ribbon and is constructed to be effective even when substantial amounts of ribbon have been previously wound on the reel; (2) an electrically neutral flange to eliminate the adverse effects of static electricity on automatic attachment; (3) a reel enclosure for maintaining loose ribbon in the proximity of the reel; (4) several selective control modes of operation to assist the operator; and (5) several other features of construction relating principally to effective handling of a loose flimsy ribbon end.

公开(公告)号：US3535908A

公开(公告)日：1970-10-27

申请号：US3535908D

申请日：1967-07-14

Applicant: IBM

Inventor： HYMES LAWRENCE ,  MEHL DANIEL L

IPC: B21J5/00 ,  B22D17/00 ,  B21C23/00

CPC classification number: B22D17/007 ,  B21C23/001 ,  B21J5/00 ,  B21J5/004 ,  B22D17/00