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    1.
    发明专利
    未知

    公开(公告)号：NO781841L

    公开(公告)日：1978-11-28

    申请号：NO781841

    申请日：1978-05-26

    Applicant: IBM

    Inventor： SCHAEFER JOHN O NEIL

    IPC: B41J32/00 ,  B41J31/09 ,  B41J33/28 ,  B41J33/38 ,  B41J33/56 ,  B41J35/10 ,  B41J35/14 ,  B41J35/23 ,  B41J35/28 ,  B41J

    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.

    3.
    发明专利
    未知

    公开(公告)号：NO149621B

    公开(公告)日：1984-02-13

    申请号：NO781841

    申请日：1978-05-26

    Applicant: IBM

    Inventor： SCHAEFER JOHN O NEIL

    IPC: B41J32/00 ,  B41J33/28 ,  B41J31/09 ,  B41J33/38 ,  B41J33/56 ,  B41J35/10 ,  B41J35/14 ,  B41J35/23 ,  B41J35/28 ,  B41J33/26

    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.

    VARIABLE CAM PROFILE SELECTION SYSTEM FOR SINGLE ELEMENT TYPEWRITER
    4.
    发明专利
    VARIABLE CAM PROFILE SELECTION SYSTEM FOR SINGLE ELEMENT TYPEWRITER 未知

    公开(公告)号：AU527414B2

    公开(公告)日：1983-03-03

    申请号：AU5649180

    申请日：1980-03-17

    Applicant: IBM

    Inventor： SCHAEFER JOHN O NEIL

    IPC: B41J1/60 ,  B41J7/50 ,  B41J7/52 ,  B41J7/54 ,  B41J7/56 ,  F16H25/12 ,  F16H53/04

    Abstract: A rotary-to-linear motion conversion device comprises a rotatable shaft (32) and an annular cam surface member (36) encircling the shaft (32) and pivotally mounted on a bracket (44) secured to the shaft (32). The member (36) is engaged by an arm (27) of a pivoted cam follower (26) biased towards the member (36). The portion of the member (36) diametrally opposite the pivot (40) engages a slider (48) rotatable with the shaft (32). The slider (48) engages a flange (56) and a collar (60). Between the collar (60) and a fixed stop (64) are four selectively withdrawable interposers (70, 72, 74 and 76) of increasing incremental widths. Two such devices are included in a typewriter character selection system to control tilt and rotation of a typehead. The tilt and rotate cam members are mounted so that they pivot to vary the cam rise. The rise of the cam is controlled by the interposers under the influence of the keyboard.

    5.
    发明专利
    未知

    公开(公告)号：DE1259906B

    公开(公告)日：1968-02-01

    申请号：DEJ0030296

    申请日：1966-03-11

    Applicant: IBM

    Inventor： SCHAEFER JOHN O NEIL

    IPC: B41J21/02

    Abstract: 1,075,901. Typewriters. INTERNATIONAL BUSINESS MACHINES CORPORATION. Jan. 4, 1966 [March 26, 1965], No. 253/66. Heading B6F. Tabulation stops.-A tabulation rack for a typewriter or like machine comprises a slotted frame 5 and stops in the form of fingers 9, each finger projecting from a support into a corresponding slot of the frame, and each finger being formed of a twisted strip of resilient material held against untwisting by the support and the edges of the slot. The fingers 9 are formed from a single spring steel plate 7, the twisted part of the fingers being narrower than the ends in order to lower the longitudinal resilience of the middles. In a modification, Fig. 4 (not shown), two sets of fingers are provided, the fingers of one set being spaced differently from the other to provide a double rack of two different pitches. A knob control moves one or the other into operative position. Setting tabulator stops.-Tabulation setting stops are provided on the typewriter carriage and are set as required. Thereupon, when the frame 5 is pivoted by a crank 3 from the keyboard, the set stops engage the fingers 9 and move them into a position so they may be engaged by the central tabulation stop.

    6.
    发明专利
    未知

    公开(公告)号：NO149621C

    公开(公告)日：1984-05-23

    申请号：NO781841

    申请日：1978-05-26

    Applicant: IBM

    Inventor： SCHAEFER JOHN O NEIL

    IPC: B41J32/00 ,  B41J33/28 ,  B41J31/09 ,  B41J33/38 ,  B41J33/56 ,  B41J35/10 ,  B41J35/14 ,  B41J35/23 ,  B41J35/28 ,  B41J33/26

    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.

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