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公开(公告)号：US3893561A
公开(公告)日：1975-07-08
申请号：US41834973
申请日：1973-11-23
Applicant: IBM
Inventor： GIBBONS JOHN GILBERT , MAROWSKI RAYMOND MICHAEL
Abstract: A pair of stop surfaces carried by a dual pitch escapement rack selectively directly measure half space displacement of the escapement rack in accordance with its selected pitch setting. Motion for half space displacement is derived from a circumferentially symmetrical face cam couple that directly converts input rotary motion into output linear motion of the escapement rack.
Abstract translation: 由双间距擒纵机架承载的一对停止面，根据其选定的俯仰设置选择性地直接测量擒纵机架的半空间位移。 半空间位移的运动是从直接将输入旋转运动转换成擒纵机架的输出线性运动的圆周对称的凸轮对导出的。
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公开(公告)号：DE3161316D1
公开(公告)日：1983-12-08
申请号：DE3161316
申请日：1981-05-12
Applicant: IBM
Inventor： MAROWSKI RAYMOND MICHAEL , MCDANIEL ROBERT FREDERICK
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Patent Agency Ranking
公开(公告)号：DE2455580A1
公开(公告)日：1975-05-28
申请号：DE2455580
申请日：1974-11-23
Applicant: IBM
Inventor： GIBBONS JOHN GILBERT , MAROWSKI RAYMOND MICHAEL
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公开(公告)号：DE3168443D1
公开(公告)日：1985-03-07
申请号：DE3168443
申请日：1981-05-12
Applicant: IBM
Inventor： ESKEW DOUGLAS HOWARD , MAROWSKI RAYMOND MICHAEL , SEVY DANNY RAY
Abstract: The cord reeling device (18) includes a cord tension sensing mechanism (112, 114, 106) for detecting the increase tension of cord (80) when a driven load, such as the paper carriage of a typewriter, ceases to move and the drive mechanism continues to operate. It is desirable to disengage the drive mechanism at that point rather than to cause frictional wear or overloading of the motor pending a predetermined amount of driving time prior to disengagement. Upon the cord tension reaching a preset value, a clutch pawl (82) will disengage a drive clutch (70) and prevent further wear of the clutching arrangement. To prevent premature disengagement of clutch (70), a shock unloading pretensioned spring (39) is incorporated in the drive unit (24) to absorb the initial shocks and forces experienced during acceleration of the load driven by cord (80).
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公开(公告)号：DE3062951D1
公开(公告)日：1983-06-09
申请号：DE3062951
申请日：1980-05-29
Applicant: IBM
Inventor： LLOYD EDWARD RAPHAEL , MAROWSKI RAYMOND MICHAEL
Abstract: 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.
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公开(公告)号：IT1149984B
公开(公告)日：1986-12-10
申请号：IT2295680
申请日：1980-06-23
Applicant: IBM
Inventor： LLOYD EDWARD RAPHAEL , MAROWSKI RAYMOND MICHAEL
Abstract: 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.
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公开(公告)号：AU5147179A
公开(公告)日：1980-05-15
申请号：AU5147179
申请日：1979-10-04
Applicant: IBM
Inventor： ENGLE VENCIL DELANO , MAROWSKI RAYMOND MICHAEL , POLLARD EDWARD ELLETT , PULLEN JOHN LIGGETTE
IPC: B41J13/02 , B41J13/036 , B41J13/076 , B41J13/048
Abstract: A paper feed roll assembly is disclosed which is pivotally mounted on a central point with three degrees of freedom of movement. The feed rolls are engageable with the periphery of the platen. Additionally, the support for the paper feed rolls is deflectable about the central point by a feed roll release member to effect the withdrawal of the feed rolls from the periphery of the platen to enhance paper insertion and removal. The pivot point support provides for freedom of movement in the three necessary degrees of freedom to allow equilization of feed roll force against the platen and for alignment of the feed rolls with the periphery of the platen to insure proper paper feed. The feed roll truck frame, by virtue of its pivotal mounting, may be deflected downward to permit release or insertion of the paper. A deflection means or eccentric bar is disclosed for deflecting the truck member away from the periphery of the platen against the force of the pivot support acting toward the platen.
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