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1. 发明授权

US4264936A Altitude correcting vacuum system 失效
标题翻译：海拔校正真空系统
公开(公告)号：US4264936A
公开(公告)日：1981-04-28
申请号：US948483
申请日：1978-10-04
申请人： Roger Mosciatti , Thomas P. Foley , Frederick G. Moritz
发明人： Roger Mosciatti , Thomas P. Foley , Frederick G. Moritz
IPC分类号： G11B15/58 , G11B15/46
CPC分类号： G11B15/58
摘要： A blower motor providing vacuum as, for example, for a magnetic tape handler, is programmed to provide a constant vacuum in an environment of changing altitudes. The blower motor is controlled by a pressure transducer which speeds up the motor as the altitude is increased and slows down the motor as the altitude is decreased.
摘要翻译：提供例如用于磁带处理器的真空的鼓风机马达被编程为在变化的高度的环境中提供恒定的真空。鼓风机电机由压力传感器控制，压力传感器随着高度的增加而加速电机，并随着高度的降低而使电机减速。

2. 发明授权

US4216889A Vacuum tank for magnetic tape handlers 失效
标题翻译：磁带处理机真空槽
公开(公告)号：US4216889A
公开(公告)日：1980-08-12
申请号：US8553
申请日：1979-02-02
申请人： Roger Mosciatti , Thomas P. Foley , Frederick G. Moritz
发明人： Roger Mosciatti , Thomas P. Foley , Frederick G. Moritz
IPC分类号： G11B15/58
CPC分类号： G11B15/58
摘要： A one piece extrusion provides the base for a simple and effective vacuum tank for magnetic tape handlers. The extrusion carries longitudinal slots which accept stamped metal nuts. These nuts are readily positioned by sliding them along the slots. Slots along the edges of the extrusion are used to carry nuts holding hinges for a plastic cover over the tank front. Slots along the back and near the edges of the extrusion carry nuts for mounting the tank on the tape handler main frame. A longitudinal slot along the back of the extrusion and spaced in from one edge carries spring-loaded tubular inserts for attachment to the vacuum sensing tubes. Communication with the vacuum chamber is implemented by means of holes at appropriate places along the body of the extrusion.
摘要翻译：单件式挤出机为磁带处理机提供了一个简单而有效的真空罐的底座。挤出物承载接受冲压金属螺母的纵向槽。这些螺母通过沿着槽滑动而容易地定位。沿着挤出边缘的槽用于承载用于在罐前方的塑料盖上固定铰链的螺母。沿着后部和靠近挤出机边缘的槽插入用于将油箱安装在胶带处理机主框架上的螺母。沿着挤出件的后部并沿着一个边缘间隔开的纵向狭槽承载弹簧加载的管状插入件，用于附接到真空感测管。与真空室的通信通过在挤压体的适当位置处的孔来实现。

3. 发明授权

US3978384A Bidirectional motor drive using switched amplitude controlled current 失效
标题翻译：双向电机驱动使用开关振幅控制电流
公开(公告)号：US3978384A
公开(公告)日：1976-08-31
申请号：US463524
申请日：1974-04-24
申请人： George C. Gucker
发明人： George C. Gucker
IPC分类号： H02P7/00 , G05F1/06
CPC分类号： H02P7/04
摘要： In the computer field tape handlers for magnetic tape are widely used. The magnetic tape is moved by a capstan driven by a high power low inertia motor since it is necessary to rapidly accelerate and decelerate the tape in both forward and reverse directions. A high power motor is provided with a command controlled direct current. The motor direction is determined by the selection of one of two pairs of solid state switches. Only one current control circuit is used. Transients are minimized by permitting only one pair of switches to be closed at any time and by switching when the controlled current is at a low value.

4. 发明授权

US4027587A Pulley construction for high speed printer belt 失效
标题翻译：滑轮结构用于高速打印带
公开(公告)号：US4027587A
公开(公告)日：1977-06-07
申请号：US611020
申请日：1975-09-08
申请人： John Tschinkel , Raymond A. Ballweg
发明人： John Tschinkel , Raymond A. Ballweg
IPC分类号： B41J1/20
CPC分类号： B41J1/20
摘要： Chain or belt printers for high speed print-out from computers and the like employ metal or plastic type slugs clipped to a toothed elastomeric timing belt. The belt passes around two toothed pulleys one of which drives the belt so that the type slugs pass along a printing line at a predetermined speed. Pins holding and locating the slugs on the belt extend inside both top and bottom edges of the belt.The pulleys are constructed with peripheral slots to mate with the teeth on the inner surface of the timing belt and added teeth to support the belt at both of its outer edges and between the pins holding the slugs to the belt. This added support for the belt improves the printing accuracy under dynamic high speed printing operations.
摘要翻译：用于从计算机等高速打印出来的链式或带式打印机采用夹在齿形弹性同步带上的金属或塑料型块塞。皮带通过两个带齿的皮带轮，其中一个皮带轮驱动皮带，使得类型的塞子以预定的速度沿印刷线路传播。保持和定位皮带上的塞子的销钉在带的顶部和底部边缘内延伸。滑轮构造有外围狭槽，以与同步带的内表面上的齿匹配，并且添加齿以在两个其外边缘和引脚之间将s条保持在皮带上。增加了对皮带的支持，提高了动态高速打印操作下的打印精度。

5. 发明授权

US3951090A Hydraulic system for raising and lowering keel 失效
标题翻译：液压系统升降龙骨
公开(公告)号：US3951090A
公开(公告)日：1976-04-20
申请号：US522223
申请日：1974-11-08
申请人： John T. Potter
发明人： John T. Potter
IPC分类号： B63B41/00 , F15B1/02
CPC分类号： B63B41/00 , F15B1/02 , B63B2035/009
摘要： The hydraulic system for raising and lowering a heavy keel comprises a cylinder, a piston movable in the cylinder and connected to the keel, and an accumulator for supplying hydraulic fluid at a positive pressure below that necessary to raise the keel against the piston in a direction for raising the keel. A hand pump is provided for supplying hydraulic fluid at a pressure great enough to overcome the weight of the keel. A valve allows the hydraulic fluid to flow either to or from the cylinder. An enlarged flow line communicates the accumulator with the cylinder so that if an external force should cause the keel to raise suddenly, hydraulic fluid would flow rapidly beneath the piston. A gas is provided on the other end of the piston for providing a cushioning effect and restricting the speed at which the keel can be raised. A restricted flow valve is provided in the system for regulating the speed at which the keel can be lowered.
摘要翻译：用于升降重型龙骨的液压系统包括一个气缸，一个在气缸中可移动并连接到龙骨上的活塞，以及一个蓄能器，用于以正向压力提供液压流体，该正压力低于将龙骨朝着活塞方向升高用于提升龙骨。提供了一种手动泵，用于以足够大的压力供应液压流体以克服龙骨的重量。阀门允许液压流体流向或从气缸流出。一个扩大的流线将蓄能器与气缸连通，如果外力会使龙骨突然升高，液压油就会在活塞下方迅速流动。在活塞的另一端设置有气体，用于提供缓冲效果并限制龙骨升高的速度。在该系统中设置限制流量阀，用于调节龙骨降低的速度。

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