中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

9 records (took 0.018 seconds)

    PRINTER
    7.
    发明专利
    PRINTER 未知

    公开(公告)号：GB1299338A

    公开(公告)日：1972-12-13

    申请号：GB4334371

    申请日：1971-09-17

    Applicant: IBM

    Inventor： DAYGER JONAS EDWIN ,  DREJZA JOHN EDWARD ,  MONEAGLE OTTO FRANZ

    IPC: B41J9/10

    Abstract: 1299338 Selective printing INTERNATIONAL BUSINESS MACHINES CORP 17 Sept 1971 [28 Dec 1970] 43343/71 Heading B6F A printer has continuously moving type character bearing elements 11 moving along a print line on one side of a document 14. Type hammers 24 located on the opposite side of the document are operable to impact the document 14 and a type ribbon 13 with selected ones of the type characters, which are themselves selectively advanced towards the hammers by an associated actuating means 31. The type hammers 24 are electromagnetically operated/ spring returned (Fig. 2). In Fig. 1, type levers 11a are disposed to be advanced as they pass selected print positions by the actuating means 31, which comprises a series of slides 32 which when advanced engage different ones of the type levers 11a as they pass by, and cam them into an advanced position. A plurality of electromagnets 35 have a common hold winding 36 linking the electromagnets 35 for holding the slides 32 in the retracted position against the bias of springs 34. Individual buck windings 37 are selectively energized to oppose the hold winding 36 so that selected slides 32 are released and advanced by springs 34. Each buck winding 37 is wired in parallel with the electromagnet winding (27, Fig. 3) of the associated hammer 24. Instead of having a hammer 24 for each character position, each hammer may cover two or more character positions. In an alternative embodiment, (Figs. 5 and 6), a plurality of type characters are advanced at the same time, but not in juxtaposed positions. This is achieved with a plurality of bars (50, 52, 54) movable towards and away from the document, each bar having cam surfaces (50a, 50b, 50c &c.) for engaging different type characters at spaced apart intervals greater than the spacing between adjacent type characters.

    POSITION TRACKING PULSE EMITTER
    8.
    发明专利
    POSITION TRACKING PULSE EMITTER 未知

    公开(公告)号：DE3464558D1

    公开(公告)日：1987-08-13

    申请号：DE3464558

    申请日：1984-07-05

    Applicant: IBM

    Inventor： DREJZA JOHN EDWARD

    IPC: B41J19/18 ,  B41J19/20 ,  G01D5/30 ,  B41J29/42

    Abstract: A marking pattern (21) is provided on a lead screw (7) in parallel with the thread of the lead screw. A carriage (3) driven along by the lead screw (7) contains a transducer (25) for sensing the marking pattern on the lead screw to produce electrical output signal pulses indicative of incremental displacement of the carriage (3). A printhead (1) can be mounted on the carriage (3) and the electrical output signal pulses from the transducer (25) used to control printing operations. The marking pattern (21) can be designed to provide control signals for other purposes, for example for controlling start-up, running, deceleration and reversal of a motor (9) driving the lead screw (7).

    SELECTIVE PRINTING APPARATUS
    9.
    发明专利
    SELECTIVE PRINTING APPARATUS 未知

    公开(公告)号：GB1259729A

    公开(公告)日：1972-01-12

    申请号：GB5654470

    申请日：1970-11-27

    Applicant: IBM

    Inventor： DREJZA JOHN EDWARD

    IPC: B41J1/20 ,  B41J9/10 ,  E21B7/00 ,  E21B10/18

    Abstract: 1,259,729. Selective printing. INTERNATIONAL BUSINESS MACHINES CORP. 27 Nov., 1970 [22 Dec., 1969], No. 56544/70. Heading B6F. Hammer mechanisms.-A selective printer has a plurality of hammers 24 which impact pivoted type levers 11a carried by type carriers 11 along a track adjacent the print line. Cam surfaces 11i on the body of each carrier co-operate with cam surfaces 24a on the hammers 24 (Figs. 6 and 7) to prevent interference between the print hammer and an adjacent type lever when printing. The remainder of the disclosure is similar to that of Specification 1,259,728.

Patent Agency Ranking