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    62.
    发明专利
    未知

    公开(公告)号：DE2509184A1

    公开(公告)日：1975-09-11

    申请号：DE2509184

    申请日：1975-03-03

    Applicant: SERVO CORP OF AMERICA

    Inventor： GLAZAR ARTHUR J

    IPC: B61K9/00 ,  B60L3/00 ,  B61K9/06 ,  H03K5/24 ,  B61H9/04 ,  G01K13/06

    Abstract: A two-level alarm monitor for use with a hot box detector system of the type having first and second sensors each associated with a rail of a track is provided. The monitor includes means connected to the outputs of the sensors for obtaining the difference between the output signals of the sensors and for comparing the difference alternately to first and second predetermined levels which may, for example, represent "warm" and "hot" differential alarm levels or differential alarm levels for friction and roller bearings. The outputs of the sensors are also alternately compared with third and fourth predetermined levels which could, for example, represent "warm" and "hot" absolute alarm levels or absolute alarm levels for friction or roller bearings. The output signals from the comparators are demultiplexed and utilized to generate an alarm signal in the event differential signals or absolute alarm signals exceed associated predetermined levels.

    63.
    发明专利
    未知

    公开(公告)号：IT985274B

    公开(公告)日：1974-11-30

    申请号：IT5039073

    申请日：1973-06-01

    Applicant: SERVO CORP OF AMERICA

    IPC: B61K9/12 ,  B61K9/06 ,  B61K13/00 ,  G01J5/00 ,  B61L

    Abstract: A railway safety system is provided to detect defects on railroad rolling stock, such as sticking brakes, which are ultimately manifested by an abnormal temperature rise in the region of the railway car wheel rim. The system utilizes an infrared detector positioned along a section track and focused to scan the wheels of passing cars. Scanning is confined to an area of each wheel between the rail head and the bottom of the car brake shoes.

    65.
    发明专利
    未知

    公开(公告)号：DE2329843A1

    公开(公告)日：1974-01-17

    申请号：DE2329843

    申请日：1973-06-12

    Applicant: SERVO CORP OF AMERICA

    Inventor： GALLAGHER CORNELIUS A

    IPC: B61K9/12 ,  B61K9/06 ,  B61K13/00 ,  G01J5/00 ,  B61L23/02

    Abstract: A railway safety system is provided to detect defects on railroad rolling stock, such as sticking brakes, which are ultimately manifested by an abnormal temperature rise in the region of the railway car wheel rim. The system utilizes an infrared detector positioned along a section track and focused to scan the wheels of passing cars. Scanning is confined to an area of each wheel between the rail head and the bottom of the car brake shoes.

    Distributor for use in navigation systems
    70.
    发明专利
    Distributor for use in navigation systems 未知

    公开(公告)号：GB966549A

    公开(公告)日：1964-08-12

    申请号：GB194261

    申请日：1961-01-17

    Applicant: SERVO CORP OF AMERICA

    Inventor： HANSEL PAUL GEORGE ,  PAULSTICH WILLIAM HENRY ,  RICHTER FREDERICK GEORGE

    IPC: G01S1/40 ,  H01P1/12 ,  H01Q3/24

    Abstract: 966,549. Capacitors. SERVO CORPORATION OF AMERICA. March 13, 1961 [Jan. 17, 1961], No. 1942/61. Heading HIM. [Also in Division H4] In a quasi-Doppler beacon in which the individual members of a circular array of aerial elements are energized sequentially by means of a rotary electro-mechanical capacitative commutator to simulate the effect of a moving aerial, distortion of the signal emitted by an active element due to parasitic effects of the inactive elements is prevented bye oupling at least the inactive elements adjacent the active element to respective terminating impedances each comprising reactive and resistive components which detune and damp the inactive elements. As shown schematically in Fig. 1 the aerial elements A 1 . . . A 50 are connected to corresponding stator electrodes of the commutator and a corresponding number of rotor electrodes are provided on a rotating member 15, one of the rotor electrodes, i.e. the signal electrode 17, being coupled to the transmitter output terminal 10 by means of a rotary capacitative coupling 13 and the other auxiliary rotor electrodes being connected to respective terminating impedances Z1 . . . Z49 mounted on the member 15; alternatively as shown in Fig. 2 only a small number, e.g. two, of auxiliary rotor electrodes may be provided on either side of the signal rotor electrode 17. The structural arrangement of the commutator is shown in exploded view in Fig. 2 in which each stator electrode comprises a pair of radial strips, e.g. 17 1 , 17 11 mounted on fixed spaced plates, the rotor electrodes comprise radial strips 16, 18, 19, 20, 21 on the rotating disc 15 mounted between the fixed plates and the rotary coupling 13, Fig. 1, comprises a disc 12 on the rotating member 15 and a cylinder 11 1 on the lower fixed plate. Shield elements 45 are located between the lower stator electrodes 17 1 &c. to prevent interaction and similar shield elements may be located between the upper stator elements 17 11 &c.

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