公开(公告)号：CA1087586A

公开(公告)日：1980-10-14

申请号：CA340223

申请日：1979-11-20

Applicant: IBM

Inventor： SCHAEFER JOHN O

IPC: B41J35/28

Abstract: TYPEWRITER CARTRIDGE AND FEED MECHANISM THEREFORE Disclosed is a cartridge and a cartridge assembly for a typewriter, the assembly comprising a pair of case members, each case having a separate chamber and including means for releasably connecting the two cases in superimposed overlapping relation. First and second pairs of spaced apart ribbon guide means are associated with each of the cases and dimensioned to be aligned, first pair to second pair. Each of the case members includes a separate supply and take-up spool, the supply spool having a fixed axis of rotation and the take-up spool having a shiftable axis of rotation along a translatory path. An opening is provided along one edge of each of the cases, the openings being aligned in the paths while the take-up spools are biased in their respective paths towards the opening. Also disclosed is a drive mechanism for the cartridge in which the type of ribbon (for example, carbon or cloth) is indicated on the cartridge by a cam arrangement and, upon insertion into the machine, automatically selects the correct feed and ribbon lift mechanism to minimize ribbon wastage. The purpose of this abstract is to enable the public and the Patent Office to determine rapidly the subject matter of the technical disclosure of the application. This abstract is neither intended to define the invention of the application nor is it intended to be limiting as to the scope thereof.

公开(公告)号：CA850380A

公开(公告)日：1970-09-01

申请号：CA850380D

Applicant: IBM

Inventor： CRAFT JAMES A ,  SCHAEFER JOHN O

公开(公告)号：CA779764A

公开(公告)日：1968-03-05

申请号：CA779764D

Applicant: IBM

Inventor： SCHAEFER JOHN O

公开(公告)号：FI61427B

公开(公告)日：1982-04-30

申请号：FI753612

申请日：1975-12-19

Applicant: IBM

Inventor： MCDANIEL ROBERT FREDERICK ,  SCHAEFER JOHN O

IPC: B41J7/34 ,  B41J7/50 ,  B41J7/54 ,  B41J7/32 ,  B41J1/60

公开(公告)号：BR8104009A

公开(公告)日：1982-03-16

申请号：BR8104009

申请日：1981-06-25

Applicant: IBM

Inventor： SCHAEFER JOHN O ,  FIELD THOMAS R ,  JAGODZINSKI PETER F ,  KING JAMES F

IPC: B41J29/36 ,  B41J31/09 ,  B41J32/00 ,  B65H75/02

Abstract: Web cartridge (10) having a supply spool (12), a take-up spool (34) and a web extending from the supply spool (12) to the take-up spool (34) through exit (18) and the entrance (26) apertures to form an exposed portion of the web exterior to the cartridge. A beam spring (40) supported by the cartridge, has one end (44) positioned in squeegeeing relation to the convolutions of the web accumulated on the take-up spool (34) for forcing the web against the convolutions, the end (44) being positioned to be the only portion of the spring (40) engaging the web in order to remove buckles in the last convolution and thus preventing voids and wrinkles in the spool.

公开(公告)号：CA1097580A

公开(公告)日：1981-03-17

申请号：CA307358

申请日：1978-07-13

Applicant: IBM

Inventor： SCHAEFER JOHN O

IPC: B65H3/44 ,  B41J19/74 ,  B41J29/18 ,  B41J29/36 ,  B41J32/00 ,  B41J33/00 ,  B41J33/14 ,  B41J33/26 ,  B41J35/10 ,  B41J35/14 ,  B41J35/22 ,  B41J35/28 ,  B65H19/10 ,  B41J35/00

Abstract: RIBBON FEED MECHANISM AND CORRECTION TAPE FEED MECHANISM FOR A TYPEWRITER A ribbon and tape feed mechanism for a single element typewriter is disclosed. The ribbon feed mechanism and correction tape mechanism are mounted and configured to oscillate with the ribbon and correction tape cartridges when the cartridges and support therefore are tilted to present a portion of the ribbon or the correction tape to the print point of the typewriter for impact. The ribbon feeding and the tilt control of the cartridge is accomplished from a single cam having a plurality of sets of rises. The correction tape feed is driven from a second cam which is only engaged during those machine cycles when the machine is in a correction mode. The control of the correction mode is through the depression of the rear of the cartridge thus effecting the raising of the front portion of the cartridge and the correction tape to its operative position.

公开(公告)号：FR2391853A1

公开(公告)日：1978-12-22

申请号：FR7810339

申请日：1978-03-31

Applicant: IBM

Inventor： SCHAEFER JOHN O

IPC: B41J31/09 ,  B41J32/00 ,  B41J33/28 ,  B41J33/38 ,  B41J33/56 ,  B41J35/10 ,  B41J35/14 ,  B41J35/23 ,  B41J35/28

Abstract: Disclosed is a cartridge and a cartridge assembly for a typewriter, the assembly comprising a pair of case members, each case having a separate chamber and including means for releasably connecting the two cases in superimposed overlapping relation. First and second pairs of spaced apart ribbon guide means are associated with each of the cases and dimensioned to be aligned, first pair to second pair. Each of the case members includes a separate supply and take-up spool, the supply spool having a fixed axis of rotation and the take-up spool having a shiftable axis of rotation along a translatory path. An opening is provided along one edge of each of the cases, the openings being aligned in the paths while the take-up spools are biased in their respective paths towards the opening. Also disclosed is a drive mechanism for the cartridge in which the type of ribbon (for example, carbon or cloth) is indicated on the cartridge by a cam arrangement and, upon insertion into the machine, automatically selects the correct feed and ribbon lift mechanism to minimize ribbon wastage.

公开(公告)号：CA1044168A

公开(公告)日：1978-12-12

申请号：CA238094

申请日：1975-10-20

Applicant: IBM

Inventor： MCDANIEL ROBERT F ,  SCHAEFER JOHN O

IPC: B41J7/34 ,  B41J7/50 ,  B41J7/54 ,  B41J23/04

Abstract: PRINTER WITH NON RETURN TO HOME RACK SHIFT SELECTION MECHANISM Disclosed is a mechanism for shifting the rack of a selection mechanism for a single element printer from one portion to another in timed relationship to the translation of a barrel cam which provides the necessary mechanical input to control the amount of rotation of the typehead. The control of the rack shift mechanism is a cam arrangement operated in timed relationship with the translating barrel cam to provide for the shifting of the rack at the beginning of each print cycle, if necessary, and the retaining of the rack in its shifted position at the completion of the cycle, thereby eliminating the necessity to provide for the time required to shift the rack back to its home position at the end of the cycle. The elimination of the restore operation of the rack provides more time during the cycle to operate the selection mechanism and accomplish printing or conversely provides for a smaller amount of time being required for the necessary functions thereby providing the capability of operating the remainder of the mechanism at a faster rate.

公开(公告)号：FR2351792A1

公开(公告)日：1977-12-16

申请号：FR7635298

申请日：1976-11-19

Applicant: IBM

Inventor： SCHAEFER JOHN O

IPC: B41J21/02 ,  B41J21/04 ,  B41J21/08

Abstract: A tab rack bar and tab stops are disclosed which provide for the ability to set a first set of tab stops on one side of the tab rack by displacing the tab stops into the path of the tabulator mechanism and then by rotating the tab rack set a second set of tab stops completely independent of the first set of tab stops by likewise displacing the tab stop into the path of the tabulator mechanism. The double tab rack and tab stops provides the capability of presetting and then selecting a first set of tab stops such as may be used for letter type correspondence and a second set of tab stops which may be used for columnar layout or statistical report typing, without having to clear and then reset the desired tab stops each time you care to switch.

公开(公告)号：CA779763A

公开(公告)日：1968-03-05

申请号：CA779763D

Applicant: IBM

Inventor： GOFF WILLIE JR ,  SCHAEFER JOHN O