公开(公告)号：US4317192A

公开(公告)日：1982-02-23

申请号：US106523

申请日：1979-12-26

Applicant: Richard M. Castle

Inventor： Richard M. Castle

IPC: H04N5/903 ,  G11B3/00 ,  G11B3/08 ,  G11B3/085 ,  G11B3/10 ,  H01J61/54 ,  H01J61/92 ,  G11B17/00 ,  G11B11/00 ,  G11B21/16

CPC classification number: H01J61/54 ,  G11B3/08535 ,  G11B3/10 ,  H01J61/92

Abstract: A diamond stylus for electromechanically recording short wavelength video signal information in a metal disc master is supported in a cutterhead suspension apparatus. A set of parallel spring steel suspension members are used to mount a cutting stylus assembly including the diamond stylus to an electromechanical recording lathe. A cutterhead suspension velocity control apparatus couples the cutterhead suspension apparatus to the main frame of the electromechanical recording lathe. When the cutterhead suspension is lowered onto the disc master surface the velocity control apparatus controls the rate at which the cutterhead suspension descends to the disc master surface.

Abstract translation: 用于在金属盘母盘中机电记录短波长视频信号信息的金刚石触针支撑在刀盘悬挂装置中。 一组平行的弹簧钢悬挂构件用于将包括金刚石触针的切割触针组件安装到机电记录车床。 刀头悬挂速度控制装置将刀架悬挂装置连接到机电记录车床的主框架。 当刀架悬架下降到盘主表面上时，速度控制装置控制刀架悬架下降到盘主表面的速率。

公开(公告)号：US4316143A

公开(公告)日：1982-02-16

申请号：US154599

申请日：1980-05-29

Applicant: Richard M. Castle

Inventor： Richard M. Castle

IPC: G01P3/56 ,  G11B19/28 ,  H02P23/00 ,  G01P3/46

CPC classification number: G11B19/28 ,  G01P3/56 ,  H02P23/186

Abstract: Variations of the speed of a video disc mastering turntable which lie within the lock range of a phase-lock-loop turntable speed control servo are detected by sensing variations of the loop phase detector waveform symmetry. Speed error limits are established by pulse forming circuitry which continuously restarts a timing circuit in one mode of operation and allows the timing circuit to complete a timing cycle in another mode of operation. A further timing circuit is arranged to reject multiple indications of the same speed error whereby a single output indication is provided for all speed errors occurring in a certain time period.

Abstract translation: 通过检测环路相位检测器波形对称性的变化来检测位于锁相环转台速度控制伺服锁定范围内的视盘盘母盘转盘的速度变化。 通过脉冲形成电路建立速度误差极限，脉冲形成电路在一种操作模式下连续地重启定时电路，并允许定时电路在另一操作模式下完成定时周期。 布置另外的定时电路以拒绝相同速度误差的多个指示，由此为在特定时间段内出现的所有速度误差提供单个输出指示。

公开(公告)号：US4525751A

公开(公告)日：1985-06-25

申请号：US412185

申请日：1982-08-27

Applicant: Edward J. Freeman ,  John E. Economou ,  John G. Pecorari ,  Gunter John ,  Jerome B. Halter ,  Jack E. James ,  Richard M. Castle ,  Richard C. Palmer

Inventor： Edward J. Freeman ,  John E. Economou ,  John G. Pecorari ,  Gunter John ,  Jerome B. Halter ,  Jack E. James ,  Richard M. Castle ,  Richard C. Palmer

IPC: G11B20/06 ,  G11B23/00 ,  H04N5/76 ,  H04N5/92 ,  G11B3/00

CPC classification number: H04N5/7605 ,  G11B20/06 ,  G11B23/0057 ,  H04N5/903

Abstract: A video disc record of the constant angular velocity type (CAV) includes a spiral groove of constant pitch formed in a band on a surface thereof. The groove has a substantially constant nominal vertical dimension and vertical displacements which taper monotonically from an outer radius of the band to an inner radius. One component of the vertical displacement of the groove conveys an FM carrier wave of constant amplitude and relatively high frequency representative of picture information. A second component of the vertical displacement conveys one or more lower frequency FM carrier waves representative of sound information. The amplitude of the second component varies monotonically as a function of the groove radius within the record band to provide a disc having an improved audio FM carrier-to-noise ratio with no substantial perceptible increase in undesirable sound beat effects in images displayed when the disc is played. A mastering system exemplary of the method of forming the grooved disc includes variable gain units in an audio FM carrier wave processing path of the system.

Abstract translation: 恒定角速度型（CAV）的视盘记录包括在其表面上的带中形成的具有恒定螺距的螺旋槽。 凹槽具有基本恒定的标称垂直尺寸和从带的外半径到内半径单调渐缩的垂直位移。 凹槽的垂直位移的一个组成部分传送代表图像信息的恒定幅度和相对高频率的FM载波。 垂直位移的第二分量传送代表声音信息的一个或多个较低频率的FM载波。 第二组件的幅度随记录频带内的凹槽半径的函数而单调变化，以提供具有改进的音频FM载波噪声比的盘，而在盘上显示的图像中不期望的声音效果不会显着增加 玩了 形成沟槽盘的方法的示例性的母盘系统包括系统的音频FM载波处理路径中的可变增益单元。

公开(公告)号：US3954681A

公开(公告)日：1976-05-04

申请号：US508132

申请日：1974-09-23

Applicant: Richard M. Castle

Inventor： Richard M. Castle

IPC: C08J11/14 ,  C08J11/24 ,  C08J11/04 ,  C08G18/82

CPC classification number: C08J11/24 ,  C08J11/14 ,  C08J2375/04 ,  Y02W30/704 ,  Y02W30/706

Abstract: A novel method of reclaiming cured polyurethane elastomers comprises milling particulate cured polyurethane elastomer under shear sufficient to increase the temperature of the elastomer for a time sufficient to form the elastomer into a cohesive mass and then continuing the milling at elevated temperature and pressure in the presence of a selected devulcanizing agent until a uniform, continuous, cohesive, partially devulcanized product is obtained. The novel product has properties which are improved over those of the cured starting material including improved heat resistance, abrasion resistance and tensile strength.

Abstract translation: 回收固化的聚氨酯弹性体的新方法包括在剪切下研磨颗粒固化的聚氨酯弹性体，足以使弹性体的温度升高足以将弹性体形成粘合物质的时间，然后在升高的温度和压力下，在存在 选择的脱硫剂直到获得均匀的，连续的，内聚的部分脱硫产物。 该新型产品具有比固化起始材料改性的特性，包括改进的耐热性，耐磨性和拉伸强度。