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327 条记录 (耗时 0.014 秒)

    Shoulder strap-operated pitch-changing means for spanish guitars
    81.
    发明授权
    Shoulder strap-operated pitch-changing means for spanish guitars 失效
    用于西班牙吉他的肩带式操作式换刀装置

    公开(公告)号：US3686993A

    公开(公告)日：1972-08-29

    申请号：US3686993D

    申请日：1971-01-11

    申请人： COLUMBIA BROADCASTING SYST INC

    发明人： FENDER CLARENCE L

    IPC分类号： G10D3/14

    CPC分类号： G10D3/143

    摘要： The pitch-changer is mounted in a cavity in the body of a Spanish guitar, and incorporates a second-class lever in the form of a bolt which is adjustably associated with a link, the latter being connected to the string to be tensioned in order to change the pitch thereof. The bolt is pivoted by a bell-crank lever which, in turn, is connected to the shoulder strap for operation thereby. The link is adjustable along the length of the bolt to thus change the degree of pulling of the string in response to a predetermined movement of the bell crank and the bolt. Stop means are provided to limit movement of the bell crank to a predetermined angle, and a torsion spring is provided to counterbalance the weight of the guitar body, the mounting of the torsion spring being such that there is no lateral force against the pivot for the bell crank.

    摘要翻译： 换音器安装在西班牙语吉他琴体的一个空腔中，并结合了一个螺栓形式的二级杠杆，螺栓可调节地与一个连杆相关联，后者连接到弦上以按顺序拉紧 改变它的音调。 螺栓由钟形曲柄杆枢转，该曲柄杆又连接到肩带上用于操作。 连杆可以沿着螺栓的长度调节，从而根据钟形曲柄和螺栓的预定的运动改变弦的拉动程度。 提供止动装置以将钟形曲柄的运动限制到预定的角度，并且提供扭力弹簧以抵消吉他体的重量，扭转弹簧的安装使得不存在侧向力抵靠枢轴 铃铛

    Apparatus for continuous contact printing
    82.
    发明授权
    Apparatus for continuous contact printing 失效
    连续印刷的设备

    公开(公告)号：US3664738A

    公开(公告)日：1972-05-23

    申请号：US3664738D

    申请日：1970-01-09

    申请人： COLUMBIA BROADCASTING SYST INC

    发明人： CAMERON EWEN

    IPC分类号： G03B27/08 ,  G03B27/10 ,  G03B27/20

    CPC分类号： G03B27/08 ,  G03B27/10

    摘要： APPARATUS AND METHOD FOR CONTACT PRINTING WHICH COMPRISES MOVING A TRANSPARENCY WEB AND A WEB OF PHOTOSENSITIVE PRINT MATERIAL TOGETHER IN CLOSE CONTACT AND AT A SUBSTANTIALLY UNIFORM SPEED PAST AN EXPOSURE POSITION AT WHICH THE PRINT MATERIAL IS EXPOSED TO LIGHT PASING THROUGH THE TRANSPARENCY WEB, PROVIDING A LIQUID LAYER BETWEEN THE WEBS TO ESTABLISH OPTICAL CONTACT BETWEEN THEM, AND APPLYING FLUID PRESSURE TO PRESS THE WEBS TOGETHER, THE FLUID PRESSURE BEING GREATEST AT A POSITION WHERE THE WEBS HAVE BEEN BROUGHT TOGETHER VIA THE LIQUID LAYER AND BEFORE THEY HAVE REACHED THE EXPOSURE POSITION.

    Octave jumper for musical instruments
    83.
    发明授权
    Octave jumper for musical instruments 失效
    音乐乐器的音乐

    公开(公告)号：US3651242A

    公开(公告)日：1972-03-21

    申请号：US3651242D

    申请日：1970-06-15

    申请人： COLUMBIA BROADCASTING SYST INC

    发明人： EVANS CHAUNCEY R

    IPC分类号： G10H5/07 ,  G10H1/06 ,  G10H3/00

    CPC分类号： G10H5/07

    摘要： A bass or other guitar has a transducer for each of its strings, and each transducer is connected to an octave jumping circuit which lowers the musical tone produced by the individual string, all without loss of either harmonics or amplitude variations. The wave form of the fundamental frequency of each musical tone is squared, divided by two and then amplitude modulated to follow the amplitude envelope of the original tone. The modulated square wave contains only odd harmonics of the lowered frequency fundamental. The missing even harmonics are restored by combining with the modulated square wave the original tone containing all of its harmonics.

    摘要翻译： 低音或其他吉他具有每个弦的换能器，并且每个换能器连接到八度跳跃电路，其降低由单个弦产生的乐音，全部不损失谐波或幅度变化。 每个音调基频的波形平方，除以2，然后进行幅度调制，以跟随原始音调的幅度包络。 调制方波仅包含降频频率基波的奇次谐波。 通过与被调制的方波组合包含其所有谐波的原始音调来恢复丢失的偶次谐波。

    Process for forming photoemissive surfaces
    84.
    发明授权
    Process for forming photoemissive surfaces 失效
    形成摄影表面的方法

    公开(公告)号：US3627575A

    公开(公告)日：1971-12-14

    申请号：US3627575D

    申请日：1968-11-13

    申请人： COLUMBIA BROADCASTING SYST INC

    发明人： DOYLE ROBERT J ,  GROSSO PATRICK F

    IPC分类号： H01J9/12 ,  H01J40/06 ,  B44D1/18

    CPC分类号： H01J9/12 ,  H01J40/06 ,  Y10T29/49002

    摘要： Photoemitters are formed on selected areas of a substrate or on a normally inaccessible substrate by coating the selected areas or substrate with a layer of a nucleating material having a higher heat of sublimation than the photoemitter base layer (e.g., nichrome if the latter base layer is antimony). The substrate with the selected nucleated areas thereon is sealed into an evacuated envelope and is baked out to remove foreign gases. Antimony is then evaporated inside or caused to diffuse into the envelope at an elevated temperature such that it is deposited only on the nucleated surfaces. An alkali metal (e.g., caesium) is then evaporated within the envelope and it adheres only to the areas where the antimony has previously been deposited, forming photoemitters on the selected area or areas on the substrate.

    Vapor reproducing apparatus
    85.
    发明授权
    Vapor reproducing apparatus 失效
    蒸汽发生装置

    公开(公告)号：US3565523A

    公开(公告)日：1971-02-23

    申请号：US3565523D

    申请日：1967-12-13

    申请人： COLUMBIA BROADCASTING SYST INC

    发明人： DAVIS RONALD N ,  SEVERIN HUBERT J

    IPC分类号： G03D7/00

    CPC分类号： G03D7/00

    摘要： APPARATUS FOR EXPOSING AND DEVELOPING LIGHT-SENSITIVE MATERIAL FROM A MASTER COPY COMPRISING AN EXPOSURE UNIT HAVING A SOURCE OF COLLIMATED LIGHT TO WHICH THE COPY AND MATERIAL ARE DELIVERED FOR EXPOSURE AND A DEVELOPER UNIT HAVING A CHAMBER CONTAINING A DEVELOPING VAPOR TO WHICH THE EXPOSED MATERIAL IS DELIVERED FOR DEVELOPMENT. BOTH THE EXPOSURE AND DEVELOPER UNITS INCLUDE CYLINDRICAL MEMBERS ENCOMPASSED BY BELTS WHICH ARE DRIVEN TO CARRY THE COPY OR MATERIAL IN SHEET FORM POSITIONED BETWEEN THE CYLINDER AND BELT TO EXPOSURE AND DEVELOPER ZONES OF THE CYLINDERS. THE UNITS ARE DRIVEN IN SYNCHRONISM IN A MANNER PROVIDING RAPID DELIVERY TO AND FROM A PREDETERMINED DWELL TIME AT THE EXPOSURE AND DEVELOPER ZONES.