US3086635A - Keylever storage mechanism - Google Patents
Keylever storage mechanism Download PDFInfo
- Publication number
- US3086635A US3086635A US124210A US12421061A US3086635A US 3086635 A US3086635 A US 3086635A US 124210 A US124210 A US 124210A US 12421061 A US12421061 A US 12421061A US 3086635 A US3086635 A US 3086635A
- Authority
- US
- United States
- Prior art keywords
- interposer
- latch
- shaft
- keylever
- cycle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J7/00—Type-selecting or type-actuating mechanisms
- B41J7/36—Selecting arrangements applied to type-carriers rotating during impression
- B41J7/42—Timed impression, e.g. without impact
- B41J7/44—Timed impression, e.g. without impact with impact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J5/00—Devices or arrangements for controlling character selection
- B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
- B41J5/18—Locks
- B41J5/22—Interlocks between keys, e.g. without detent arrangements
Definitions
- This invention relates to a typewriter and more particularly to a storage mechanism for storing and printing the character corresponding to a key which is depressed prior to the completion of a printing cycle of a previously depressed key.
- FIGURE 1 is a simplified cross-sectional side view of a portion of a single printing element typewriter in which the present invention is incorporated,
- FIGURE 2 is a timing chart designating the relative times at which different events may occur in the printing cycle of the machine shown in FIGURE 1, and
- FIGURE 3 is a simplified eross-sectional side view of a portion of a type bar type of typewriter incorporating the present invention.
- each interposer which is actuated in response to a key depression is latched and with an interlock, prevents actuation of another interposer.
- the actuated interposer is retained in depressed position until it is unlatched simultaneous with the actuation of the combination of bails.
- the unlatching and unlocking are effected by the rotation of a filter shaft as one of the sequential occurrences in each printing cycle, after which follow a further succession of events in the cycle.
- a second interposer may be interlocked and latched and be retained in latched position through the remainder of the period of the first cycle and the portion of the second cycle until it is unlatched.
- any subsequent key may be depressed and corresponding interposers latched, at any time subsequent to the unlatching of a previously actuated and latched interposer, to store and subsequently print a character corresponding to the interposer.
- a keylever may similarly be depressed to actuate an interposer.
- the interposer is pivotal to a latched and interlocked position and simultaneously a hook on the interposer is placed in position to be engaged by a flute of a rotating shaft.
- the interposer is actuable in a second direction by the fluted shaft and a cam ear on the interposer engages and actuates a type bar mechanism for printing a character.
- the key interlock prevents the actuation of a second interposer while another is latched and in combination with the latching mechanism the interposer is stored in its first actuated position in readiness to be actuated in the second direction of the engagement of the flute and hook above mentioned while the printing cycle of a previously depressed key is being completed.
- 10 represents generally a single printing element typewriter in which the invention may typically be employed.
- the typewriter 10 has a conventional keyboard, not shown in its entirety, but having one keylever such as the one shown at 12, for each pair of characters on the printing head. In combination with a shift mechanism, each keylever depression facilitates the printing of two characters.
- a projection as shown at 14 facilitates manipulating the keylever.
- Each keylever is pivotal at one end about a fixed rod 15 and is guided and limited in its vertical movement as seen in this figure by a comb 16 secured to a frame member 17.
- Other key levers are disposed behind keylever 12 in this figure of drawing and have similar projecting actuating members as shown at 18, 19 and 20.
- a suitable key button such as shown at 22 is preferably applied to each projecting actuating member.
- an operator depresses the respective keylevers which are spring biased upwardly in FIG- URE 1, each by a leaf spring similar to that shown at 24. These springs are secured to frame member 17 and project into engagement with the extremities of the keylevers. Twisting of the keylevers is prevented by the engagement of a projection 28 of the keylever with a frame member 29 against which the projection 28 abuts.
- a pawl such as shown at 34 is mounted on each keylever and, with respect to FIGURE 1, is pivotal, from the position shown in a counterclockwise direction against the bias of a spring 36 connected between the pawl and a hook 38 on the keylever.
- Each keylever and pawl is effective when depressed, to actuate a corresponding interposer, one of which is shown at 40.
- Each interposer has a projection 42 the remote end 44- of which is engageable with a lip 46 on pawl 34. Depression of the keylever, pawl and interposer causes the interposer to pivot in a clockwise direction about a rod 48 fixed relative to frame member 17 by a plate 50.
- a comb 49 guides movement of each interposer in its plane.
- Each interposer is slidable laterally as shown in FIGURE 1, by virtue of an elongated slot 52 accommodating rod 48 but is urged both upwardly and to the right in this figure, by a spring 54 secured at opposite ends to the interposer land a frame member 56, respectively.
- actuation of an interposer by a corresponding keylever is in opposition to the vertical component of force of spring 54.
- An interlock is provided for preventing the simultaneous actuation of more than one interposer by a corresponding keylever and includes a plurality of balls, one of which is shown at 58, contained in a channel 61) extending the width of all of the inter-posers.
- the number of balls in the interlock is one greater than the number of interposers in the machine and the balls are restricted to a limited amount of movement in either direction along channel 61
- Each interposer is provided with a projection 62 which is essentially removed from the channel of the balls in the upward position of the interposer but which is disposed between a pair of balls in the depressed position of the interposer.
- the aggregate spacing between adjacent pairs of balls in the interlock is greater than the width of projection 62 but less than twice this width whereby only one projection may be lowered at any one time and actuation of a second interposer is prevented.
- a leaf spring latch member such as shown at 63 is provided for each interposer in the machine.
- Each latch member is secured at one end to a frame member 29 and extends downwardly in FIGURE 1.
- the corresponding latch spring In the unactuated position of an interposer, the corresponding latch spring extends beyond the uppermost part of the end of the interposer.
- the resilience of the spring urges it toward member 29 and on actuation of the-interposer it moves away from and free of the spring and the spring moves toward and is stopped by member 29.
- the free end of the spring abuts the surface portion 64 of the interposer to prevent its return to initial position.
- any interposer is effective to rock a bail, which is shown at 65.
- This bail is supported in frame members not shown and engages and pivots a latch 66 about a rod 68 extending through the latch and a clutch latch link 70.
- a bail 69. is actuable together with an on-off switch and is selectively interposable inv the path of latch 66 as shown in dotted lines.
- the latch 66 is provided with a latch surface 72 engageable with a shoulder 7 4 on a member 76 which is rigidly fixed with respect to frame member 17, and the latch is biased to- -latching position by a spring 75 connected to latch 66 on the side of pivot rod 68 remote from surface 72 and to link 70.
- Clutch latch link 70 is spring biased to the left and somewhat downwardly as seen in FIGURE 1 by a spring 78 connected betweena member 79 secured to frame member 17 and to link 70. In response to the release of latch member 66, spring 78 pulls link 70 leftwardly in FIGURE 1. The movement of the link is guided by a rod '80, rigidly secured to member 76, and being accommodated by a slot 82 in the end of link 70.
- a cycle clutch sleeve member '84 is provided with diametrically opposed,- radial shoulders 85 and 86 and, as indicated by the arrow thereon, is urged for counterclockwise rotation as viewed in FIGURE 1 by means not shown.
- a pulley 87- which is rotatable with sleeve member 84, is coupled to another pulley 88 by a belt 90 and a filter shaft member 92 is driven with pulley 88.
- Filter shaft member 92 is provided with a pair of similar, diametrically opposed lobes 94 and 96, each of which is engageable with a shoulder 98 at the end of interposer 40 in the actuated position of the interposer.
- the rotation of filter shaft 92 drives a lowered interposer leftwardly in FIGURE 1, in opposition to spring 54 by reason of the engagement between a lobe 94 or 96 with shoulder 98.
- Each interposer is provided with a unique combination of projections such as the projections 99011 interposer 4! which are engageable with a corresponding combination of bails such as those shown at 160.
- rocking of different combinations of. bails 108 is effective through further mechanism, not shown herein, to appropriately orient a single head printing element for selection of a character to be printed.
- the actuated interposers, cycle clutch 84 and filter shaft 92 are selectively driven by the disengagement of a clutch latch 161 with either shoulder or 86 as the case may be.
- the latch 101 is secured to a pivotal arm 102 through a resilient intermediate material 104 which may be rubber and arm 102, in turn, is pivotal about a rod 106 which is rigidly supported by the frame of the machine.
- the end of link 76 is pivotal about a rod 103 extending through the link and an ear on the swingable end of arm 102 and thus, the movement of link 70, leftward in FIGURE 1, is effective to pivot arm 102 about rod 106 to unlatch sleeve 84.
- a latch restoring arm 108 is pivotal together with a follower arm 1519 about a rod 110 which is supported by the machine frame.
- the arms 169 and 110 are angularly adjustable relative to each other by a bolt 111 extending through suitable openings in portions of the arms and bolt 111 is tightened after adjustment to provide for unitary movement of these arms.
- the arm 109 is biased into engagement with shaft 92 by a spring 112 whereby during rotation of shaft 92, the lobes on this shaft rotate the arm against the tension of spring 112..
- the arm 198 when so driven, forces arm 192 and latch 101 toward sleeve 84 to latch the same as one of the shoulders 85 or 86 rotates into engagement with the latch.
- FIGURE 2 of the drawings wherein is shown the time relationship between the sequence of events in an operating cycle of a typical machine incorporating the present invention in a representative typing situation.
- the abscissa represents elapsed time scaled in milliseconds and the ordinate of each individual line plot represents position of a certain component of the machine in FIGURE 1.
- a keylever such as 12.
- this is represented by the line 116 wherein the move ment of the keylever takes place between times t0 and 11. This interval of time is shown as being approximately 6 milliseconds, although typically it may be considerably longer.
- the pawl 34 on the keylever engages and actuates the interposer 40 approximately one-half millisecond after time t0 and this in turn engages clutch trip bail 65 one-half second later, or in other words, approximately one millisecond after time t0 and actuates the bail as represented by line 120.
- the pawl 34 on the keylever engages and actuates the interposer 40 approximately one-half millisecond after time t0 and this in turn engages clutch trip bail 65 one-half second later, or in other words, approximately one millisecond after time t0 and actuates the bail as represented by line 120.
- interposer 40 From time t5 to time 16, interposer 40 returns to its initial position under the influence of spring 54 which imparts both vertical and horizontal restoring forces to the interposer. It is noted that this interposer restoration may occur prior to the restoration of the keylever. This is made possible by the fact that during the restoring motion of interposer 49, the projection 42 of the interposer engages the side of pawl 34 and causes it to rotate counterclockwise in FIGURE 1 sufficiently to accommodate the restoration of the interposer. As shown at time t7 in FIGURE 2, the keylever 12 is returned to its initial position under the influence of spring 24.
- the application of the present invention to a typewriter having a type bar for each pair of characters is shown at 139 in FIGURE 3 of the drawings.
- the typewriter 130 includes a conventional keyboard having a plurality of keylevers, one each for each pair of characters printable by the typewriter.
- Each of the keylevers is substantially the same as the others and each has cooperable therewith a different group of similar parts.
- Keylever 132 has a key button 134 mounted on a projection 136 of the keylever for manually manipulating it.
- Each keylever is pivotal about a rod 138 and suitable provision is made for guiding and limiting the movement of each keylever and for biasing it to its restored or initial position.
- An interposer such as that shown at 149 is provided for each keylever and the manipulation of each keylever forces the same toward the interposer so that a projection 142 on the keylever engages an opposing projection 144 on the interposer.
- Each interposer is pivotally mounted on a rod 14-6 and a limited lateral movement of the interposer with respect to the rod is facilitated by a slot 148 in which the rod 146 is fitted.
- the depression of a keylever forces a clockwise rotation of the corresponding interposer.
- Each interposer is biased to the right and in a counterclockwise angular direction as viewed in FIGURE 3 of the drawings by the tension of a spring such as 150 6 connected between the end of an interposer and a hook 152. on a projection of a corresponding keylever.
- a stop 154- restricts the counterclockwise movement of the interposer.
- a ball interlock for preventing the simultaneous actuation of more than one interposer.
- the interlock includes a plurality of balls one of which is shown at 156 contained in an elongated channel the end of which is shown at 158. The channel is closed at each end and the aggregate spacing between balls is greater than the width of any single interposer but less than twice this width.
- the interposers are of uniform width and the number of balls is one greater than the number of interposers and thus, the ball interlock acts to accommodate a portion of an actuated interposer between a pair of balls while preventing a similar interposition of another interposer.
- a resilient spring latch member as shown at 160 is provided for each interposer and is fixedly mounted at one end to a member 162 which is rigid with the machine frame.
- a suitable screw 164 is shown for this purpose.
- the spring 160 extends beyond the nearest portion of the interposer and is in abutment with the end of the interposer. In this position the spring is distorted from its free position and it bears against the end of the interposer.
- the interposer In the actuated position of the interposer, however, the interposer is moved away from the spring 160 and free of it whereby the spring moves to a position in which its end abuts the nearest surface portion of the interposer. As may be understood, in this condition, the interposer is held down or latched in actuated position.
- a bail member 166 which is pivotal about a pivot rod 168, extends the width of the machine and is disposed between the interposers and a trip latch 170.
- the trip latch is also pivotal about rod 168 and thus, the actuation of any interposer is effective to rock the trip latch about its pivot.
- a shaft 172 extends the Width of the machine and has mounted thereon a member 174 having opposed flutes 176 and 178 with respective radial, diametrically opposed, flat surfaces.
- a cam member 180 is mounted on the shaft for rotation with it.
- a stop 182 is selectively positionable to engage the cam 18% to prevent the counterclockwise rotation thereof.
- Another cam member 184 is coupled to a power means through a spring clutch, not shown, and is selectively releasable for effecting coupling between the power means and shaft 172 for rotation of this shaft and parts rotatable therewith. The stop 182 in blocking the rotation of cam 18% releases the spring clutch and accordingly, interrupts the power drive to shaft 172.
- the key lever actuation of any interposer causes it to pivot about rod 146.
- a lip 186 near one end thereof is disposed in the rotary path of a flat surface of one of the flutes 176 or 178.
- a projection 188 of inter-poser 140 is positioned with one side adjacent to a shoulder 191 ⁇ of a cam 192.
- bail 166 is rocked to pivot trip latch 170 about rod 168 to release cam 184.
- this cam couples the power means to shaft 172 and thus, one of the flutes 176 or 178, as the case may be, engages lip 186 on interposer 140 and draws the interposer in the direction of the arrow shown on interposer 140 in FIG- URE 3 of the drawings.
- projection 188 engages shoulder and pivots cam 192 .to a small extent about a rod 194 and in the direction of the arrow on the cam.
- the rod 194 serves to join cam 192 with a cam lever 198 and these members are individually pivotal about this rod.
- a serrated edge 196 of the cam engages a power roll 200 which is continuously driven in the direction of the arrow adjacent thereto in FIGURE 3 and, as is well known, the power roll quickly pivots the cam to the full extent of engagement between the serrations 196 and the power roll.
- the cam member is driven away from the power roll because of the increasing radius of curvature along the serrated portion and cam lever 198, through rod 194, is also driven away from the power roll.
- cam lever 198 is pivotal about a fixed rod 202 whereby the end 204 of cam lever 198 swings with increased amplitude.
- suitable means may be provided for coupling a difierent type bar to each cam lever at its end corresponding to 204.
- the action of the power roll in driving cam 192 is to cause it to be thrust clear of the power roll.
- a spring 206 is connected between the cam lever 198 and a fixed frame member and a spring 208 is connected between cam 192 and cam lever 198 to restore these members to their initial relative positions.
- interlock 156-158 and spring latch 160 are efiective to store a single depressed key and actuated interposer for the period of an operating cycle of a previously depressed key, remaining after a second key is depressed in a manner similar to that described with respect to typewriter 10.
- this invention provides an eifective means for storing a vertically actuated intenposer until a previously initiated printing cycle of the machine is completed and then eifecting printing of a character corresponding to the stored interposer in a single printing element machine is made clear.
- An apparatus comprising a plurality of interposers each being individually actuable in a first direction and means for preventing the simultaneous actuation of more than one interposer in said first direction, interposer latch means for latching an interposer actuated in said first direction, a cyclically operable shaft having a cam lobe thereon engageable with the endof an actuated interposer for actuating the same in a second direction to unlatch the interposer, a cycle clutch coupled between said shaft and a power drive means, clutch latch for selectively latching said cycle clutch, a link member coupled to said clutch latch and a link latch effective to retain said link member and clutch latch in position to latch said cycle clutch, means biasing said link to unlatching position, said link latch being responsive to actuation of an interposer to unlatch said link and withdraw said clutch latch from engagement with said cycle clutch, means responsive to the actuation of an interposer in said second direction to restore the same to initial position to facilitate actuation and latching of another interposer and means
- an ofiice machine having :a single element printing head orientable to a plurality of positions and a plurality of key actuable interposers each having a portion with a predetermined width and being engageable with a unique combination of members for selecting a position of said head, comprising means for individually actuating each of said interposers in a first direction and means for preventing the simultaneous actuation of more than one interposer in said first direction, means for latching each interposer displaced a predetermined extent in said first direction, a rotatable shaft having a first cam lobe thereon and being effective in response to rotation of said shaft to engage a latched interposer to actuate and displace said interposer in a second direction to unlatch the same from said latch means, means for selectively rotating said shaft including a cycle clutch coupled between said shaft and a power drive means, a link latch for selectively latching said cycle clutch, means establishing coupling between each of said interposers and said link latch for unlatchingsaid cycle clutch
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- Accessory Devices And Overall Control Thereof (AREA)
- Common Mechanisms (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US124210A US3086635A (en) | 1961-07-14 | 1961-07-14 | Keylever storage mechanism |
GB24997/62A GB976473A (en) | 1961-07-14 | 1962-06-29 | Improved printing apparatus |
AT544962A AT240884B (de) | 1961-07-14 | 1962-07-06 | Vorrichtung zur selbsttätigen Steuerung der Typenanschlagfolge bei kraftangetriebenen Schreibmaschinen |
DEJ10679U DE1862057U (de) | 1961-07-14 | 1962-07-09 | Vorrichtung zur selbsttaetigen steuerung der typenanschlagfolge bei kraftangetriebenen schreibmaschinen. |
CH823162A CH405370A (de) | 1961-07-14 | 1962-07-09 | Vorrichtung zur selbsttätigen Steuerung der Typenanschlagfolge bei kraftangetriebenen Schreibmaschinen |
SE7792/62A SE307141B (xx) | 1961-07-14 | 1962-07-12 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US124210A US3086635A (en) | 1961-07-14 | 1961-07-14 | Keylever storage mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
US3086635A true US3086635A (en) | 1963-04-23 |
Family
ID=22413485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US124210A Expired - Lifetime US3086635A (en) | 1961-07-14 | 1961-07-14 | Keylever storage mechanism |
Country Status (6)
Country | Link |
---|---|
US (1) | US3086635A (xx) |
AT (1) | AT240884B (xx) |
CH (1) | CH405370A (xx) |
DE (1) | DE1862057U (xx) |
GB (1) | GB976473A (xx) |
SE (1) | SE307141B (xx) |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3191740A (en) * | 1962-07-24 | 1965-06-29 | Royal Mcbee Corp | Keylever signal storing mechanism |
US3195707A (en) * | 1962-07-16 | 1965-07-20 | Royal Mcbee Corp | Keylever signal storing mechanism |
US3217850A (en) * | 1963-11-21 | 1965-11-16 | Royal Typewriter Co Inc | Forward and back spacing mechanism |
US3233715A (en) * | 1964-04-20 | 1966-02-08 | Invac Corp | Transmitter receiver machine employing print sphere typewriter structure |
US3268049A (en) * | 1961-12-28 | 1966-08-23 | Grundig Max | Function control arrangements having common drive means |
US3327828A (en) * | 1966-01-25 | 1967-06-27 | Friden Inc | Keyboard mechanism having latch means |
US3339695A (en) * | 1966-07-22 | 1967-09-05 | Ibm | Repeat mechanism for printing device |
US3353646A (en) * | 1966-09-14 | 1967-11-21 | Ibm | Typewriter having means to store characters selected during carriage movements |
US3379297A (en) * | 1967-05-03 | 1968-04-23 | Burroughs Corp | Electric typewriter keyboard operated mechanism |
US3386554A (en) * | 1967-02-27 | 1968-06-04 | Ibm | Shift-print interlock |
US3389773A (en) * | 1967-07-14 | 1968-06-25 | Ibm | Printer with mechanical read-write transducer and selectively resettable information storage tape |
US3422946A (en) * | 1966-08-25 | 1969-01-21 | Siemens Ag | Keyboard with binary signal generating structure |
US3565231A (en) * | 1967-11-01 | 1971-02-23 | Singer Co | Key shift mechanism |
US3568811A (en) * | 1968-09-20 | 1971-03-09 | Litton Business Systems Inc | Memory system for an electric typewriter |
US3578133A (en) * | 1969-01-15 | 1971-05-11 | Ibm | Nonrepeat mechanism for keyboard |
US3581859A (en) * | 1968-09-26 | 1971-06-01 | Litton Business Systems Inc | Position sensitive mechanical feedback control |
US3592313A (en) * | 1968-07-15 | 1971-07-13 | Ibm | Encoding keyboard having dual-output shift key |
US3642110A (en) * | 1969-03-14 | 1972-02-15 | Brother Ind Ltd | Power operated typewriter with interlock means |
US3718243A (en) * | 1970-11-13 | 1973-02-27 | Olympia Werke Ag | Apparatus for storing typing commands given in too rapid succession by keys |
US3721327A (en) * | 1970-07-11 | 1973-03-20 | Olympia Werke Ag | Storing and interlocking typewriter input mechanism |
US3727742A (en) * | 1969-06-14 | 1973-04-17 | Olympia Werke Ag | Adjustable blocking means for typing and printing mechanisms |
US3759360A (en) * | 1969-05-31 | 1973-09-18 | Olympia Werke Ag | Apparatus for the control of type printing sequences |
US3777869A (en) * | 1969-07-23 | 1973-12-11 | Olympia Werke Ag | Type action drive |
US3817366A (en) * | 1969-12-27 | 1974-06-18 | Triumph Werke Nuernberg Ag | Keyboard controlled encoding mechanism |
US3827542A (en) * | 1971-11-29 | 1974-08-06 | Triumph Werke Nuernberg Ag | Character storage arrangement for a powered typewriter action |
US4235554A (en) * | 1977-12-02 | 1980-11-25 | Silver Seiko Limited | Keyboard signal storage mechanism |
US4277192A (en) * | 1978-02-01 | 1981-07-07 | Brother Industires, Ltd. | End of line locking mechanism for power operated typewriter |
US4316674A (en) * | 1980-03-31 | 1982-02-23 | International Business Machines Corporation | Keylever pawl tube spring and keyboard utilizing a keylever pawl tube spring |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2861668A (en) * | 1952-09-06 | 1958-11-25 | Olivetti & Co Spa | Type carrier actuating mechanism for typewriting machines |
US2870896A (en) * | 1952-11-29 | 1959-01-27 | Rheinmetall Ag | Power-driven typewriter |
US2978086A (en) * | 1959-10-14 | 1961-04-04 | Ibm | Key operated machines |
-
1961
- 1961-07-14 US US124210A patent/US3086635A/en not_active Expired - Lifetime
-
1962
- 1962-06-29 GB GB24997/62A patent/GB976473A/en not_active Expired
- 1962-07-06 AT AT544962A patent/AT240884B/de active
- 1962-07-09 DE DEJ10679U patent/DE1862057U/de not_active Expired
- 1962-07-09 CH CH823162A patent/CH405370A/de unknown
- 1962-07-12 SE SE7792/62A patent/SE307141B/xx unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2861668A (en) * | 1952-09-06 | 1958-11-25 | Olivetti & Co Spa | Type carrier actuating mechanism for typewriting machines |
US2870896A (en) * | 1952-11-29 | 1959-01-27 | Rheinmetall Ag | Power-driven typewriter |
US2978086A (en) * | 1959-10-14 | 1961-04-04 | Ibm | Key operated machines |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3268049A (en) * | 1961-12-28 | 1966-08-23 | Grundig Max | Function control arrangements having common drive means |
US3195707A (en) * | 1962-07-16 | 1965-07-20 | Royal Mcbee Corp | Keylever signal storing mechanism |
US3191740A (en) * | 1962-07-24 | 1965-06-29 | Royal Mcbee Corp | Keylever signal storing mechanism |
US3217850A (en) * | 1963-11-21 | 1965-11-16 | Royal Typewriter Co Inc | Forward and back spacing mechanism |
US3233715A (en) * | 1964-04-20 | 1966-02-08 | Invac Corp | Transmitter receiver machine employing print sphere typewriter structure |
US3327828A (en) * | 1966-01-25 | 1967-06-27 | Friden Inc | Keyboard mechanism having latch means |
US3339695A (en) * | 1966-07-22 | 1967-09-05 | Ibm | Repeat mechanism for printing device |
US3422946A (en) * | 1966-08-25 | 1969-01-21 | Siemens Ag | Keyboard with binary signal generating structure |
US3353646A (en) * | 1966-09-14 | 1967-11-21 | Ibm | Typewriter having means to store characters selected during carriage movements |
US3386554A (en) * | 1967-02-27 | 1968-06-04 | Ibm | Shift-print interlock |
US3379297A (en) * | 1967-05-03 | 1968-04-23 | Burroughs Corp | Electric typewriter keyboard operated mechanism |
US3389773A (en) * | 1967-07-14 | 1968-06-25 | Ibm | Printer with mechanical read-write transducer and selectively resettable information storage tape |
US3565231A (en) * | 1967-11-01 | 1971-02-23 | Singer Co | Key shift mechanism |
US3592313A (en) * | 1968-07-15 | 1971-07-13 | Ibm | Encoding keyboard having dual-output shift key |
US3568811A (en) * | 1968-09-20 | 1971-03-09 | Litton Business Systems Inc | Memory system for an electric typewriter |
US3581859A (en) * | 1968-09-26 | 1971-06-01 | Litton Business Systems Inc | Position sensitive mechanical feedback control |
US3578133A (en) * | 1969-01-15 | 1971-05-11 | Ibm | Nonrepeat mechanism for keyboard |
US3642110A (en) * | 1969-03-14 | 1972-02-15 | Brother Ind Ltd | Power operated typewriter with interlock means |
US3759360A (en) * | 1969-05-31 | 1973-09-18 | Olympia Werke Ag | Apparatus for the control of type printing sequences |
US3727742A (en) * | 1969-06-14 | 1973-04-17 | Olympia Werke Ag | Adjustable blocking means for typing and printing mechanisms |
US3777869A (en) * | 1969-07-23 | 1973-12-11 | Olympia Werke Ag | Type action drive |
US3817366A (en) * | 1969-12-27 | 1974-06-18 | Triumph Werke Nuernberg Ag | Keyboard controlled encoding mechanism |
US3721327A (en) * | 1970-07-11 | 1973-03-20 | Olympia Werke Ag | Storing and interlocking typewriter input mechanism |
US3718243A (en) * | 1970-11-13 | 1973-02-27 | Olympia Werke Ag | Apparatus for storing typing commands given in too rapid succession by keys |
US3827542A (en) * | 1971-11-29 | 1974-08-06 | Triumph Werke Nuernberg Ag | Character storage arrangement for a powered typewriter action |
US4235554A (en) * | 1977-12-02 | 1980-11-25 | Silver Seiko Limited | Keyboard signal storage mechanism |
US4277192A (en) * | 1978-02-01 | 1981-07-07 | Brother Industires, Ltd. | End of line locking mechanism for power operated typewriter |
US4316674A (en) * | 1980-03-31 | 1982-02-23 | International Business Machines Corporation | Keylever pawl tube spring and keyboard utilizing a keylever pawl tube spring |
Also Published As
Publication number | Publication date |
---|---|
AT240884B (de) | 1965-06-25 |
GB976473A (en) | 1964-11-25 |
DE1862057U (de) | 1962-11-15 |
CH405370A (de) | 1966-01-15 |
SE307141B (xx) | 1968-12-23 |
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