| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Print element shifter | US369679 | 1982-04-19 | US4382703A | 1983-05-10 | Thomas D. Gross; Brian E. Jagger |
| An improved print element shifting apparatus having a shifting cam movable in an arc for moving a rotatable print element between two positions by means of a shifting solenoid, and for reducing the mid-stroke peak load on the solenoid. A load modifying linkage arrangement is provided between the shifting solenoid and the shifting cam for imparting movement to the shifting cam alternatively from the one of two drive elements having the greatest mechanical advantage. | ||||||
| 162 | Font changing apparatus for daisy wheel printer | US98287 | 1979-11-28 | US4307968A | 1981-12-29 | Adolph B. Habich; Ronald E. Hunt |
| An under-the-cover automatic font changing apparatus for a daisy wheel printer which utilizes a print element housed in a cartridge during printing. The apparatus is adapted to exchange print elements in the cartridge. Included in the apparatus are an elongated and vertically oriented rack, a plurality of print element holding means located along the rack, drive means for vertically elevating and lowering the rack in a single plane, and means for causing a selection motor drive hub included in the printer to be translated toward and away from the print element for a print element change. During printing, the drive hub is for rotating the print element housed in the cartridge. Cooperating with the apparatus is a carrier positionable along and above the rack and carrying the cartridge. The cartridge has spring means included therein for cooperating with the drive hub upon insertion of one of the holding means into the cartridge. The spring means and drive hub cooperate for (1) installing a print element included in the cartridge on the holding means for removal of the print element from the cartridge, and (2) removing a print element from the holding means for loading the cartridge with a print element. | ||||||
| 163 | Print member carriage assembly | US664789 | 1976-03-08 | US4049109A | 1977-09-20 | Mario G. Plaza; Richard D. Trezise |
| A carriage assembly for transporting a print member along a predetermined path adjacent a support member comprises a first carriage section adapted to be mounted adjacent the support member for movement along the predetermined path, apparatus for mounting a print member to the first carriage section for movement between first and second positions relative to the support member, and apparatus coupled to the mounting apparatus for retaining a print member mounted to the frame in each of its first and second positions. The retaining apparatus includes a biasing member for biasing the print member in a direction opposite its second position when at its first position and in a direction opposite its first position when at its second position. The biasing member preferably includes an over-center tensioned spring coupled between the first carriage section and the mounting apparatus. | ||||||
| 164 | Automatic printer with plurality of replaceable printing members | US657608 | 1976-02-12 | US4026403A | 1977-05-31 | Fumiyuki Inose; Akio Komatsu |
| An automatic printer assembly capable of printing a large number of characters from a plurality of replaceable printing members and valuable in printing characters in a foreign language, such as Japanese Kanji, and the like. The printing member support carriage can align with a storage device, such as a carousel holder, to exchange printing members. A character memory storage receives an appropriately coded signal indicating a predetermined amount and location of characters that are to be printed on a predetermined area of a medium. A controller addresses the memory storage to select the appropriate character printing member. The input character information can be appropriately coded to minimize the scan time of the printing members by a sequential selecting of the printing members based on the respective character use of each printing member. The controller controls the position of the paper, the carriage, and the striking of a hammer so that the characters on the printing member are coordinately printed as a first group across the predetermined area of the medium. The controller can then sequentially activate the exchange device to replace the first character member with a second character printing member for rescanning the same predetermined area of the medium to interpolate the printing of a second group of characters. Subsequent printing members can be utilized in a similar fashion until all the stored characters are printed out. | ||||||
| 165 | Power driven typewriter | US578986 | 1975-05-19 | US4023665A | 1977-05-17 | Robert E. Boyden |
| A typewriter comprising a shiftable carrier supporting a rotatable type drum having a plurality of circumferentially extending rows of type characters thereon. Typing keys, when depressed, condition actuators and cause engagement of a power driven cyclic action clutch which drives a power bail to operate a conditioned actuator to rotate the type drum from any position it may be in to a new position to align a type character corresponding to the key depressed with the printing point. Certain of the keys, when depressed, position stops to limit axial movement of the type drum by the action clutch to align an appropriate one of the rows of type characters with the printing point. The action clutch also actuates a centralizer to accurately align the type drum prior to printing and, in addition, causes printing. A cyclic carrier shift clutch is engageable by the action clutch and by certain carrier shift control keys. | ||||||
| 166 | Typewriter shift mechanism | US511931 | 1974-10-03 | US3972404A | 1976-08-03 | Ulrich Menzi; Raymond Clavel |
| Depressing the upper case shift key lever pivots a balance beam from a first to a second position, thereby raising the lower case shift lever to an inactive position. When the upper case shift key lever is released, the balance beam is returned to its first position, causing the lower case shift lever to fall to its active position. | ||||||
| 167 | Release and blocking mechanism for power operated typewriters | US50441374 | 1974-09-09 | US3920114A | 1975-11-18 | SHATTUCK RICHARD E; CRYDER ALBERT H |
| A shift release mechanism is connected to an electrical switch and to a control knob on a power operated typewriter. Operating the control knob actuates the electrical switch from a closed state to an open state and actuates the shift release mechanism for releasing a shift keylever to cause a platen supporting carriage to move from an upper position to a lower position. The shift release mechanism further includes a finger positioned to block the depression of the shift keylever when the electrical switch is in the open state.
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| 168 | Segment shift arrangement | US33677573 | 1973-02-28 | US3860103A | 1975-01-14 | MADISON THEODORE N |
| A plurality of type bars are pivotally supported in a type bar segment and urged to a rest position by a plurality of springs acting on sublevers linked to the type bars. The type bar segment is supported by a bail and movable in an arc between a lowered position and a raised position to provide an over-center motion enabling the sublever return springs to maintain the segment at either position. The upper and lower positions of the type bar segment are determined by a member which is associated with the segment and slidable on a post having stops threaded thereon for easy adjustment. The type bar segment is driven between the raised and lowered positions by an eccentric cam coupled through a spring clutch normally constricting about a hub of a rotatably driven power roll, and the spring clutch is selectively disengaged when the type bar segment is at the raised and lowered positions by corresponding stop abutments which engage a free end of the spring so as to prevent engagement with the power roll. The type bars are driven in a printing movement by cams carried on the sublevers and engaging the rotating power roll, and the impact intensity of the type bars is controlled by a stop member limiting the engagement of the cams with the power roll. To compensate for differences in the printing area of the type characters on each type bar, the position of the stop member is varied with the shifting of the type bar segment.
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| 169 | Shift mechanism | US36525373 | 1973-05-30 | US3842958A | 1974-10-22 | LINK M |
| A type element of a single element printer is shifted to print upper or lower case type characters by a crank which is rotatably driven through 180* with each actuation of a shift key to pivot a shifting lever of a mechanism for rotating the type element. The crank is connected to the shifting lever by means of a tape which is drawn around a roller of a pivotal guide arm and secured to a slide member mounted on a pin of the crank which extends through an elongated slot in the guide arm. The crank is rotatably driven by a drive mechanism coupled to a power roll by a half-turn clutch, and a detent arrangement is provided to accurately position the crank at rotational positions spaced 180* apart.
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| 170 | Printer for off-line printing of subscript and superscript characters and coded vertical tab setting | US3738472D | 1970-09-02 | US3738472A | 1973-06-12 | WILLCOX F |
| A printer having provision for super-script and sub-script shifting of a typewriter support without having to line-feed the paper forward or backward, and for code signal controlling of this shifting structure. An electrically-controlled page printer having automatic page sensing and line metering combined with an adjustable vertical tab structure and incremental line-feeding, to execute appropriate desired vertical tabular increments in relation to page position in response to an electrical vertical tab input signal. Optional additions include visible indication of page position and line metering, electrical or mechanical page sensing, magnetic or photo-electric sensing of desired tab positions, and electrical code signal controlled structure for setting and un-setting the vertical tab structure.
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| 171 | Device for adjusting a type carrier in teletype or data teletype machines | US3517124D | 1968-01-31 | US3517124A | 1970-06-23 | REKEWITZ RUDOLF; HORETH DIETMAR |
| 172 | Reed operated printer | US3461996D | 1966-12-20 | US3461996A | 1969-08-19 | KAPP LUDWIG J |
| 173 | Powered case shift having overcenter spring | US60297666 | 1966-12-19 | US3386555A | 1968-06-04 | EMIL STROBERG JOHN |
| 174 | Input-output typewriter having double shift means | US3273684D | US3273684A | 1966-09-20 | ||
| 175 | Typewriter multiple case shift mechanism | US65460046 | 1946-03-15 | US2471588A | 1949-05-31 | SEARS RICHARD W |
| 176 | Shift mechanism for typewriters | US56389344 | 1944-11-17 | US2396344A | 1946-03-12 | ROBESON EDNA G |
| 177 | Shift mechanism | US70164433 | 1933-12-09 | US2049468A | 1936-08-04 | NICHOLS HARRY J |
| 178 | Typewriting machine | US74694934 | 1934-10-05 | US2028200A | 1936-01-21 | CARL GABRIELSON |
| 179 | Typewriting machine | US68569333 | 1933-08-18 | US2001759A | 1935-05-21 | ALLEN AVERY HENRY |
| 180 | Typewriting machine | US57916731 | 1931-12-05 | US1956421A | 1934-04-24 | GOING GEORGE G |
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