| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Writing-machine. | US1901070640 | 1901-08-02 | US681638A | 1901-08-27 | HESS EDWARD B |
| 142 | Type-writing machine. | US1900013803 | 1900-04-21 | US671082A | 1901-04-02 | GREVE BERNHARD |
| 143 | Type-writing machine. | US1900029758 | 1900-09-12 | US668743A | 1901-02-26 | STICKNEY BURNHAM C |
| 144 | Type-writing machines. | US1898675270 | 1898-03-26 | US639660A | 1899-12-19 | BURRIDGE LEE S |
| 145 | hoceklassen | US578698D | US578698A | 1897-03-09 | ||
| 146 | Type-writing machine | US578680D | US578680A | 1897-03-09 | ||
| 147 | Type-writing machine | US557617D | US557617A | 1896-04-07 | ||
| 148 | Attachment for type-writing machines | US473237D | US473237A | 1892-04-19 | ||
| 149 | Type-writing machine | US436338D | US436338A | 1890-09-16 | ||
| 150 | Type-writing machine | US432154D | US432154A | 1890-07-15 | ||
| 151 | Method and apparatus for thermal expansion based print head alignment | US13913279 | 2013-06-07 | US08780152B2 | 2014-07-15 | Peter Heath |
| Automated print head alignment uses thermal expansion. By leveraging thermal expansion to position print heads within the carriage, the tedious manual adjustment process is eliminated. The need for costly precision references within the printer and on the print head is also reduced. | ||||||
| 152 | Printing device for exchanging printing elements by use of character and identification code data | US499802 | 1990-03-27 | US4971461A | 1990-11-20 | Kumiko Kato; Noriaki Kabeya |
| In a printing device capable of exchanging a plurality of printing elements which correspond to a plurality of character sets, respectively, at least two of the character sets having common character data, the device sequentially receives text data including character data, and identification code data for identifying one of the character sets, the identification code data being put prior to the succeeding character data for indicating the character set used in preparing the succeeding character data differs from that used for the preceding character data, it is discriminated one by one whether the succeeding character data received by the data receiving means is one of the common character data in the character set used in preparing the preceding character data, and the device is controlled such that the identification code data is not stored in a print buffer until the succeeding character data is discriminated not to be one of the common character data. | ||||||
| 153 | Document processing apparatus | US188491 | 1988-04-29 | US4946299A | 1990-08-07 | Naoki Shimada |
| A document processing apparatus has a printer for printing characters; a keyboard used for inputting characters such as alphabetical characters, symbols and numerical characters; attribute imparting circuitry for imparting an attribute to characters input by the keyboard so as to vary the character spacing of the characters; and a pitch control circuit for varying the character pitch in accordance with the attribute imparted by the attribute imparting circuitry to cause the printer to print the characters at a varied character pitch. Accordingly, it is possible to print a numerical expression while providing suitable spacings between adjacent alphanumerical characters and between one or such characters and any adjacent symbol. | ||||||
| 154 | Printing apparatus with a carriage and a printing means holder movable relatively to the same | US140757 | 1988-01-04 | US4902147A | 1990-02-20 | Tatsuji Imai; Kazuo Nakamura |
| A printing apparatus in which a holder, bearing a type carrier thereon, and a carriage, moving along a printing line, are coupled together by means of an engaging member and a coupling plate formed integrally with the holder and the carriage, respectively. The coupling plate has a surface extending along the transfer direction of the carriage and formed with an opening. The engaging member extends transverse to the carriage transfer direction so as to engage the opening. By this engagement, the holder is moved as one with the carriage, with respect to the carriage transfer direction. With respect to a direction transverse to the carriage transfer direction, the holder is allowed to move between a printable position, where the holder is situated close to a platen, and a retracted position, where the holder is situated wide apart from the platen. | ||||||
| 155 | Printing wheel discriminating apparatus | US320906 | 1989-03-08 | US4872773A | 1989-10-10 | Hiroyuki Ueda |
| A printing wheel discriminating apparatus comprises a driving device for driving a printing wheel in units of predetermined angles, a detecting device for detecting identification data attached to a specific position of the printing wheel, and a storing device for storing presence/absence data of the identification data corresponding to the specific position of the printing wheel based on the output from the detecting device, thereby discriminating the type of printing wheel. | ||||||
| 156 | Document processing system | US133240 | 1987-12-14 | US4772142A | 1988-09-20 | Masaru Makita |
| A document processing system has a pitch key for generating character pitch information, an MPU for counting the character pitch information to set auto mode data in an auto mode selection memory RAM, a wheel sort memory RAM for storing printing pitch information of a printing wheel loaded in the system, a display unit for displaying the auto printing pitch setting mode and the detected printing pitch in a combination of different display patterns, and a display controller for controlling the display unit in response to the data read out from the RAMs under the control of the MPU. | ||||||
| 157 | Word processor with font exchanging font synthesizing mode, and spacing mode of operation | US730336 | 1985-05-03 | US4768164A | 1988-08-30 | Geoffrey A. Dreher |
| A daisy wheel printing unit includes a wheel data memory housing wheel data such as kinds of characters provided in the daisy wheel by which it can be discriminated. The printing unit compares printing commands supplied to the printer and discriminates whether or not the characters to be printed included in the daisy wheel now being set in the printer. If it is discriminated that the characters to be printed are not included in the daisy wheel now being set in the printer, the user of the daisy wheel printing unit can select a desired printing mode from a plurality of printing modes including treatment for the above characters before the start of the printing operation of the document. | ||||||
| 158 | Positioning device for positioning type-wheel index motor in a printer | US83223286 | 1986-02-24 | US4705416A | 1987-11-10 | ASAKURA HIDEO |
| A positioning device in a printer, for positioning an index motor for a type wheel selectively in an operative position in which the motor shaft is coupled to the type wheel, or an inoperative position in which the motor shaft is disengaged from the type wheel. The index motor is supported by a motor holder on a carriage of the printer such that the motor and the holder are movable between the two positions. The motor holder is biased toward its second or inoperative position. The positioning device includes a stopper fixed to the carriage, a pivotal support fixed to the motor holder, and an operating lever which includes as integral parts thereof: a base portion; a pivot portion adjacent to the base portion, at which the lever is supported by the pivotal support pivotally in a plane parallel to a direction of movements of the motor holder; an operator-controlled operating portion; a first abutment portion engageable with the stopper to hold the motor holder in the first position; a second abutment portion engageable with the stopper to hold the motor holder in the second position; a spring portion for biasing the lever in a direction that causes the first and second abutment portions to engage the stopper. | ||||||
| 159 | Impact printer with type font elements having mid-line pitch change capability | US698722 | 1985-02-05 | US4624591A | 1986-11-25 | Johnny G. Barnes; James L. Gaudet; Patrick J. Hurley; Grover H. Neuman |
| An impact printing system which is particularly suitable for word processing is provided with the capability of effecting mid-line pitch changes. The impact printer system which is particularly compatible with interactive display terminals in word processing system has means for receiving a selected one of a plurality of type or character font elements. The pitch of character font elements are different from each other. The printing system includes means for selectively impacting selected characters from selected fonts along lines in a document. The system further includes control apparatus for controlling and determining the selection of font elements to be used and in the case of printing with a particular font element, the characters to be printed in respective positions along the lines of the document to provide the desired document format. The control apparatus includes apparatus for controlling the printing with at least two different font elements having different pitch along a single line. | ||||||
| 160 | Type wheel printer | US275013 | 1981-06-18 | US4389129A | 1983-06-21 | Toshiaki Sugiura |
| A printer employing a daisy-type wheel. On a hub of the type wheel a pin is slidably disposed and is backwardly biased by a spring to protrude from the rear surface of the hub. In a central opening of the hub a hair pin spring having a pair of arms is disposed. The type wheel is mounted on a drive shaft of a motor through a coupling element. The coupling element is provided with a projection which is fitted into the opening of the hub and engaged with the arms of the hair pin spring by a snap action to latch the type wheel to the drive shaft in the axial direction. In the axially latched state the pin protrudes from the front surface of the hub, resisting the resilient force of the spring, by the coupling element. When the coupling element is rotated more than one turn the protruding pin is engaged with a stationary projection to prevent the type wheel from rotating, with the result that the pin is aligned with a notch formed in the coupling element and is fitted into the same for latching the type wheel to the drive shaft in the rotational direction. | ||||||
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