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1. 发明授权

US1832160A Feeding mechanism for printing telegraphs 失效
标题翻译：打印电报送料机构
公开(公告)号：US1832160A
公开(公告)日：1931-11-17
申请号：US47853130
申请日：1930-08-28
申请人： DOW JONES & COMPANY
发明人： VISCHER JR ALFRED
IPC分类号： B41J19/44 , H04L13/18
CPC分类号： B41J19/44 , H04L13/186 , Y10T74/1595

2. 发明授权

US4285605A Escapement mechanism and backspace mechanism for a moving paper carriage typewriter having dual pitch capability 失效
标题翻译：具有双音调能力的移动纸架打字机的擒纵机构和退格机构
公开(公告)号：US4285605A
公开(公告)日：1981-08-25
申请号：US54059
申请日：1979-07-02
申请人： Edward R. Lloyd , Raymond M. Marowski
发明人： Edward R. Lloyd , Raymond M. Marowski
IPC分类号： B41J19/36 , B41J19/34 , B41J19/44 , B41J19/58 , B41J19/62
CPC分类号： B41J19/62 , B41J19/44 , B41J19/58
摘要： A mechanism which will function to allow the escapement of the carriage of a typewriter in one of two predetermined escapement pitches and be capable of backspace operation from a single backspace input for both pitches regardless of which escapement pitch is selected. Escapement ratchets for the two selected pitches are combined, together with a backspace ratchet. Each of the escapement ratchets are engageable by an escapement pawl and the engagement of a pawl with a particular ratchet will determine the pitch within which the escapement system will function. A backspace ratchet is combined with the escapement ratchets and fixedly attached thereto to provide the backspace drive. The backspace ratchet is selectably engageable by the backspace pawl for causing rotation in the opposite direction of that normally utilized for escapement. All motion of the escapement ratchets or backspace ratchet is transmitted through a pinion mounted to the ratchet assembly and, in turn, is transmitted to the paper carriage rack.
摘要翻译：一种机构，其功能是允许打字机的滑架在两个预定的擒纵机构间距中的一个擒纵，并且能够从两个间距的单个后退输入中退回操作，而不管选择哪个擒纵机构。两个选择的间距的擒纵棘轮与后退棘轮相结合。每个擒纵轮棘爪都可以通过擒纵爪接合，并且棘爪与特定的棘轮的接合将决定擒纵系统将起作用的间距。后退棘轮与擒纵机构棘轮组合并固定在其上以提供后退驱动。后退棘爪可由后退爪选择地接合，用于沿着通常用于擒纵机构的相反方向旋转。擒纵装置棘爪或后退棘轮的所有运动通过安装到棘轮组件上的小齿轮传递，并且又传递到纸架。

3. 发明授权

US3912067A Typewriter spacing selection and control mechanism 失效
标题翻译： TYPEWRITER间距选择和控制机制
公开(公告)号：US3912067A
公开(公告)日：1975-10-14
申请号：US50926474
申请日：1974-09-25
申请人： HERMES PRECISA INTERNATIONAL
发明人： MENZI ULRICH
IPC分类号： B41J19/44 , B41J19/58
CPC分类号： B41J19/58 , B41J19/44
摘要： A typewriter has a printing head carriage mounted for movement along a rack having two toothings of different pitch, the carriage carrying two pawls each able to cooperate with a respective toothing. A slidable selector lever on the pawl, actuated by an universal bar, enables the selective engagement of one pawl with its rack and disengagement of the other. A second universal bar cooperates with the selected pawl to release it from the rack to control step-by-step movement of the carriage with a selected spacing.

4. 发明授权

US3799312A Repeat spacing mechanism for typewriters 失效
标题翻译：重复间隔机构
公开(公告)号：US3799312A
公开(公告)日：1974-03-26
申请号：US33514873
申请日：1973-02-23
申请人： BROTHER IND LTD
发明人： JOZUKA M
IPC分类号： B41J19/44 , B41J25/12 , B41J19/00
CPC分类号： B41J19/44 , B41J25/12
摘要： In a repeat spacing mechanism for typewriters, first and second wheels are rigidly mounted on a shaft rotatably engaged with a carriage in an axial direction. Generally, the wheel faces a pair of pawls rotatably mounted on a pawl shaft in a plane parallel with the rotating plane of these wheels and alternately engaged with or disengaged from the wheels. There is provided a weight at the lower end of the pawl shaft. Depression of a type key or space bar causes the pawls to be alternately engaged with or disengaged from th first wheel and the carriage to make a normal single step movement, and while a repeat spacing key remains depressed, the pawls are alternately engaged with or disengaged from the second wheel, thereby permitting the carriage to make a repeat spacing movement at a proper speed under the influence of the weight.
摘要翻译：在用于打字机的重复间隔机构中，第一和第二轮刚性地安装在轴向上与托架可旋转地接合的轴上。通常，车轮面对一对棘爪，其可旋转地安装在与这些车轮的旋转平面平行的平面中的棘爪轴上，并且与车轮交替地接合或脱离。在棘爪轴的下端设置有重物。类型键或间隔杆的凹陷使得棘爪与第一轮和滑架交替地接合或脱离，以进行正常的单步运动，并且当重复间隔键保持按压时，棘爪交替地接合或脱离从而允许滑架在重量的影响下以适当的速度进行重复间隔运动。

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