中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

13 records (took 0.016 seconds)

    2.
    发明专利
    未知

    公开(公告)号：DE1561241A1

    公开(公告)日：1972-03-09

    申请号：DE1561241

    申请日：1967-01-12

    Applicant: IBM

    Inventor： EDWARD PALMER LEON ,  O'NEIL SCHAEFER JOHN ,  JAMES YOUNG RICHARD

    IPC: B41J7/66 ,  H04L13/16

    Abstract: 1,154,111. Typewriters &c. INTERNATIONAL BUSINESS MACHINES CORP. 3 Jan., 1967 [14 Jan., 1966], No. 192/67. Heading B6F. Machines with types on spherical surfaces; power assisted type actions; permutation typeselecting mechanisms.-A typewriter having a spherical type head 72 mounted on a traversible carriage (not shown) is provided with a character selection mechanism comprising a stack of slides 60, and a plurality of probe members 50 one for each character key lever 20 the probe members being provided with a pair of opposed edges 51, 52 to probe coded slots 61, 62 disposed along opposite edges of the slides and associated with upper or lower case characters, respectively. Depression of a key lever 20 causes a primary dobber 26 to rock downwardly a control link 40 whose lug 47 depresses its associated probe member 50 whereby the latter is biased by a leaf spring 15 to move in one or otherdirection along line L to probe the respective coded slots 61, 62. Probe member is latched in its position by a lug 54, 58 which enters an aperture 35 in a bracket 34. Depression of probe member 50 enables a one-revolution clutch 13 through link 18 and latch 14, whereby a cam controlled slide mechanism 64 releases the slides 60 for movement under bias of springs 63 to rock character selecting latches 11. Slides 60 are then restored by the mechanism 64 and the probe member 50 is restored by the link 40 which is moved forwardly by a leaf spring 43 attached to a bail 42 which is reciprocated by a cam 44 and then upwardly by a leaf spring 46, whereby the arm 59 of probe member 50 is raised when a lever 45 has moved the probe member to release its lug 54 or the link 40, during its forward movement has engaged the arm 59 to release its lug 58 from engagement with the aperture 35. Closing electric circuits for printing.-The slides 60 may be provided with spurs to close electrical contacts 69 during their sliding movement. Case-shift mechanism ; key sections.-Coded slots 61, 62 are associated with upper and lower case, respectively, and the probe members 50 are biased to probe the slots by leaf springs 15 which are displaced by link 16 under control of a cam 17 which is actuated by a case shift mechanism 12 on depression of a case-shift key 22. Key levers; repeat power action prevention; repeated power action.-The key levers 20 are provided with slots 23 at one end to mount them pivotally on a bracket 31 and with hooks 25 at the other end for engagement with a rod 33 to limit their upward movement. Repeat power action due to protracted key depression is prevented by limiting the downward movement of the key lever 20 by causing a lug 28 to abut a stationary frame 38 and providing the primary dobber 26 with a surface 27 which arrests the restoring movement of the link 40. Repeated power action by certain keys is possible by replacing the lug 28 by a spring 28 1 so that the key lever may be depressed to a greater extent and by providing the key lever 20 with a secondary dobber 29 which engages the upper edge 48 of restored link 40 and keeps it in a depressed position in which the probe member 50 is probing repeatedly its associated coded slot 61, 62. Key touch regulating arrangements.-Key touch is regulated by varying the width of key lever restoring leaf springs 80 which engage lugs 81 on the key levers 20, whereby entire keyboard control is effected by an operator touch control lever 82 articulated to a crank arm 83. Key switches.-Mis-operation of fast sequentially operated links 40 is prevented by a ball interlock mechanism 41 which permits only one link to be inserted at any one time. Release of the links 40 is effected early in the cycle by a bail 42 actuated by a cam 44 as so to permit the insertion of a second link thereinto. The bail 42 carries a number of leaf springs 43, one for each link, which engage the respective link and move it out of the ball interlock a restoring spring 46 urging the link 40 upwardly into its starting position. Variable impression arrangements.-Stack of slides 60 is associated with a further slide 76 coupled to a cable 75 which is attached to a slidable yoke to displace a roller 74, mounted in a cradle 71, into contact with one of a number of cams 73 which effect angular displacement of the cradle articulated to the spherical type head 72.

    3.
    发明专利
    未知

    公开(公告)号：DE1786311A1

    公开(公告)日：1972-01-05

    申请号：DE1786311

    申请日：1968-09-16

    Applicant: IBM

    Inventor： O'NEIL SCHAEFER JOHN

    IPC: B41J7/30 ,  B41J7/94 ,  B41J23/04 ,  B41J23/00

    Abstract: 1,231,591. Typewriters. INTERNATIONAL BUSINESS MACHINES CORP. 27 Aug., 1968 [18 Sept., 1967], No. 40817/68. Heading B6F. Power operated lever machines.-A power operated typewriter comprises type levers 22 connected to actuator members 15 by connecting links 21, each actuating member being selectively engageable with a reciprocable bail 28 by means of a corresponding key lever 11. Depression of a key 14 acts to urge an actuator member 15 leftwardly, a resilient finger 44 thereby being disengaged from a latching surface 43 on the actuator member, enabling the finger to lift a bail 46 which acts through a lever 47 to initiate engagement of a half-revolution clutch 48, so connecting the drive from a motor 50 to a drive shaft 34. A pair of cams 34 are thereby rotated, lifting the bail 28 to effect an impression. Key interlocks.-Simultaneous actuation of two or more type levers is prevented by a ball interlock 40 which will receive only one tail 38 of an actuator member 15. If a second key is depressed during the cycle of operation of a first key, the corresponding actuator member 15 travels far enough to release the finger 44 so that the clutch 48 remains engaged for a further half revolution to permit a corresponding impression action. Impact adjustment.-The actuator member 15 is driven by the bail 28 for a first part of its pivotal motion after which a projection 55 thereof strikes a rod 56 and the momentum of the actuator member and type lever carry them to effect impression. During the second part of the motion of the member 15, a tab 18 thereof engages the finger 44 which thereby controls the impact. Collective adjustment of the impact is effected by adjustment of the fulcrum of the fingers 44 by movement of a rod (61), Fig. 2, not shown. Letter-by-letter adjustment is achieved by screws 58, 59 which are selectively brought into operative position according to the case shift position. Rebound preventing.-The momentum of an actuator member 15 after impression is absorbed by a resilient finger (67, Fig. 2) which engages a surface 68 of the actuator member. Repeat power action preventing.-If the key lever is still depressed when the actuator member 15 returns after an impression action, the tab 18 strikes a camming surface 74 of the key lever and displaces the key lever out of operative position to prevent repeat action.

    5.
    发明专利
    未知

    公开(公告)号：DE2060514A1

    公开(公告)日：1971-07-15

    申请号：DE2060514

    申请日：1970-12-09

    Applicant: IBM

    Inventor： O'NEIL SCHAEFER JOHN

    IPC: B41J1/60 ,  B41J23/04 ,  B41J25/02 ,  B41J29/70 ,  B41J19/00

    Abstract: 1287219 Typewriters INTERNATIONAL BUSINESS MACHINES CORP 7 Dec 1970 [22 Dec 1969] 57954/70 Heading B6F In a printer having a type element (17, Figs. 1, 2) and means for positioning the type element for selection of a character to be printed, the positioning means is also effective to select a non-print function in conjunction with mode selection means which can be conditioned to permit or prevent impact action of the type element. Character printing mode of operation.-On depression of a character key (21, Fig. 2) a cam 51, Figs. 3 and 4, on a shaft 15 rotates one revolution and pivots a lever 54 about a rod 55 coupled to a type element rocker member 40 through a pin 56 to cause impression, and a cam 80, Fig. 4 (a bottom plan view) acts on an arm 81 to disengage escapement pawls 73, 101 from a rack 16 for letter spacing action of a type carriage 14. Character selection is achieved by appropriate rotation and tilt of a type element supporting post 45 through a rotation pulley 46 and a tilt pulley sector 47 under control of combination and aggregation type selection mechanisms, the combination code being derived from key operated interposers (22, Fig. 2) bearing tabs (27). Non-print function mode of operation.-On depression of a non-print function key, a bail 36, Figs. 3 and 4, is rocked through an additional tab (29, Fig. 2) on the corresponding interposer, the bail 36 acting to unlatch an arm 62 carrying the rod 55 so that on rotation of the cam 51 the lever 54 idles about the pin 56 and no impression action results. The non-print function selected is achieved by appropriate movement of the pulley 46 and pulley sector 47. Word-spacing action.-For word spacing, no rotation or tilt of the type element is selected, so that the arm 81 performs its usual stroke to operate the escapement mechanism, while the bail 36 disengages the impression mechanism. Case-shift and line-spacing actions.-For case shift or line space operations, disengagement of the escapement pawls 73, 101 is not required, so a three unit rotation of pulley 46 in a counterclockwise direction (as viewed in Fig. 4) is selected, whereby the upper (in Fig. 4) of two pins 85 mounted on a disc 84 fixed to the pulley 46 engages a projection 87 on a slide 86 previously displaced by bail 36, and thereby pivots the arm 81 from its normal position 83 to an alternative position 89 in which it is ineffective to lift the escapement pawls 73, 101 from the rack 16. The case shift or line space function is performed by other means (not shown). Tabulation action.-For tabulation, the pulley 46 is rotated five units counterclockwise, whereby the arm 81, through slide 86, is pivoted to a position 97 wherein it is effective to engage a tabulation lever 91 with the result that the escapement pawls 73, 101 are disengaged from the rack 16 through a lug 92, and a tabulation central stop 95 is positioned in alignment with any set tab stops 96. When the stop 95 strikes a stop 96, the lever 91 is forced to the right, whereby the lug 92 is disengaged from the pawl 73 so that the pawl 73 is free to re-engage the rack 16, and lever 91 is disengaged from a latch (93, Fig. 6) holding it in operative position during travel of the type carriage 14. Back-spacing action.-For back-spacing, the pulley 46 is rotated three units to prevent letter-spacing escapement operation as for case shift or line-spacing, and the pulley sector 47 is rotated three units whereby a pin 114, Fig. 3, thereon pivots a lever 110, Figs. 3 and 4, through a lug 113 whereby a tab 115, Fig. 4, thereon engages a projection 109 on an arm 104 previously displaced by bail 36. A cam 106 acting through a follower 107 pivots the arm 104 about the point of engagement between tab 115 and projection 109, so that end 105 of arm 104 bears against a lug 101b on pawl 101 and the carriage is urged to the right, pawl 73 holding the carriage in its displaced position. Carriage-return action.-For carriage return, the cam 51 is partially rotated to a position wherein the arm 81 holds the pawls 73, 101 out of engagement with the rack 16, an elongated tab (121, Fig. 2) on the carriage-return interposer acting on a clutch disengaging member (129) to disengage the cycle clutch (25) after such partial rotation. The clutch is re-engaged to complete a cycle of rotation of the shaft 15 and cam 51 when a counterstop (133, Fig. 8) on the carriage 14 strikes a margin stop (130) to displace a rack (131) whereby the clutch disengaging member (129) is released from the clutch.

    6.
    发明专利
    未知

    公开(公告)号：DE1961186A1

    公开(公告)日：1970-07-09

    申请号：DE1961186

    申请日：1969-12-05

    Applicant: IBM

    Inventor： ALEXANDER CRAFT JAMES ,  O'NEIL SCHAEFER JOHN

    IPC: B41J1/60 ,  B41J23/04 ,  B41J23/08

    Abstract: 1,222,470. Typewriters. INTERNATIONAL BUSINESS MACHINES CORP. 27 Nov., 1969 [6 Dec., 1968], No. 57985/69. Heading B6F. Power operated impression and selection.-A power operated typewriter has a normally engaged releasable coupling in the drive to the impression mechanism, which coupling is disengaged after part rotation when a key other than a character key is operated, so that an impression does not occur. In the particular embodiment, a typewriter employing a truncated spherical type-head is described, a cam (19, Fig. 2) on a shaft 18 causing the type-head to swing for impression. The shaft 18 is driven by a continuously rotating power shaft 15 via a normally disengaged, selectively engageable 180-degree cycle clutch 14, intermediate gears 17, 17d and 17c, and the normally engaged releasable coupling 40. The clutch 14 additionally drives the filter shaft 21 via intermediate gears 17, 17a and 17b. Depression of a character key, e.g. 22, causes its respective code-combination bar or interposer 30 to be reciprocated by the filter shaft 21. Each character code combination bar 30 carries a tab 36 which displaces a print cycle select bail 35. Displacement of the bail 35 causes, via linkages 37, 37a, 37b and 37c, a pivoted bell-crank lever or stop 50 to move to the broken line position illustrated, Fig. 1, so that the coupling 40 completes a rotation and impression takes place. Depression of a non-character key, e.g. line feed key (29, Fig. 3), causes the associated codecombination bar (38) without a tab 36 to be reciprocated by the filter bar 21. This results in the stop 50 remaining in position, so that it contacts a control arm 51 of the coupling 40 after part rotation thereof, whereby the coupling is disengaged and no impression takes place. Line feed (Fig. 3).-The line feed mechanism (60) employs a feed pawl (61) that is engageable with a ratchet (62) connected with the platen (12). Clockwise rotation of a bellcrank (63) brings pawl (61) into engagement with the ratchet to drive it clockwise until the pawl encounters a fixed stop (64). Depression of line space key (29) causes its code combination bar or interposer (38) to move the pawl (61) via linkages and levers (65 to 68). Word spacing (Fig. 4) is under the control of an escapement mechanism (70) which includes a pawl (71) pivotally carried by a stud (73) on the carrier 13, Fig. 1. A torque bar (75), extending across the typewriter engages a downwardly extending tab (76) of the escapement pawl (71). A clock-spring (not illustrated) urges the carrier to the right, motion being resisted by the pawl. A cam (96) on the filter shaft 21 operates via a bell-crank lever (90) and tie rod (95), a trigger assembly (80) which pivots the torque bar (75) about its axis to lift the pawl (71) from the teeth of an escapement rack 77.

    9.
    发明专利
    未知

    公开(公告)号：DE1575940A1

    公开(公告)日：1970-01-08

    申请号：DE1575940

    申请日：1967-04-15

    Applicant: IBM

    Inventor： O'NEIL SCHAEFER JOHN

    IPC: B41J19/02 ,  F16D13/02 ,  F16D61/00 ,  F16D67/02

    Abstract: 1,168,923. Typewriters. INTERNATIONAL BUSINESS MACHINES CORP. 5 April, 1967 [22 April, 1966], No. 15516/67. Heading B6F. [Also in Division F2] Auxiliary power-drive mechanism -A typewriter drive mechanism comprises a driven shaft 3 connected by a coil spring clutch 5 to a continuously rotating drive shaft 1 and carrying a disc 15 having a shoulder 14 engageable by the end of a stop lever 9 mounted on a pivoted arm 27, the moments of inertia of the rotary driven elements and of the pivoted stop mechanism being equal so that lever 9 will arrest rotation of shaft 3 without rebound. Movement of lever 9 in relation to disc 15 is controlled by a link 13, and lever 9 has an arm 19 for effecting conjoint movement of a lever 7 loaded by a spring 11 and controlling the engagement and release of clutch spring 5. Arm 27 carries inertia weights 35 and rotates under the joint control of a return spring 31 and dashpot 39, the spring normally holding the end of the arm against an abutment 33. Reverse rotation of shaft 3 by clutch spring 5 is prevented by a pawl and ratchet 21, 23.

    10.
    发明专利
    未知

    公开(公告)号：IT8020409D0

    公开(公告)日：1980-03-07

    申请号：IT2040980

    申请日：1980-03-07

    Applicant: IBM

    Inventor： O'NEIL SCHAEFER JOHN

    IPC: B41J1/60 ,  B41J7/50 ,  B41J7/52 ,  B41J7/54 ,  B41J7/56 ,  F16H25/12 ,  F16H53/04 ,  B41J

    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.

Patent Agency Ranking