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    Apparatus for casting and shearing solidified sprues
    2.
    发明授权
    Apparatus for casting and shearing solidified sprues 失效
    用于铸造和剪切固化弹簧的装置

    公开(公告)号：US3627023A

    公开(公告)日：1971-12-14

    申请号：US3627023D

    申请日：1969-09-25

    Applicant: IBM

    Inventor： CLARK KENDALL ,  KLEIN WILLIAM A

    IPC: B22D31/00

    CPC classification number: B22D25/04

    Abstract: Metal is cast onto a body within a die cavity having preformed areas of relatively small size into which metal may be deposited. The metal, which is exterior of the die cavity after the metal within the cavity has solidified, is removed by shearing means.

    Program controlled positioning device utilizing a stepping motor
    3.
    发明授权
    Program controlled positioning device utilizing a stepping motor 失效
    使用步进电机的程序控制定位装置

    公开(公告)号：US3569813A

    公开(公告)日：1971-03-09

    申请号：US3569813D

    申请日：1969-06-09

    Applicant: IBM

    Inventor： CLARK KENDALL ,  DROP JOSEPH G ,  GODAT JEAN J L

    IPC: B23Q5/22 ,  B23Q5/52 ,  G05B19/18 ,  G05B19/40 ,  H02P8/40

    CPC classification number: G05B19/40

    Abstract: This patent discloses apparatus for locating a workpiece or work table along X and Y coordinates and for simultaneously orienting the work to precisely position the same in those three coordinates. The apparatus includes three separate positioning means each of which includes sensor means in which a plurality of sets of contacts have a source of power applied initially to the first of the sets. Adjacent the sets of contacts is sequencer means which include a plurality of rotary switches having make before break contacts each aligned with a set of contacts in the sensor means. Intermediate each of the rotary switches are counter-type gear boxes having a predetermined gear ratio which connects the rotary switches together so that there is a predetermined and precise turning ratio between each of the rotary switches. Intermediate the sequencer and sensor is common program means, in the present instance a punch card, which is operable to connect power from the first of the sets of contacts of each sensor to the switch contacts of its associated rotary switch until the program means interrupts the power applied to the first of the sets of contacts of the sensor. Connected to the rotary switches is stepping drive means operative to rotate the rotary switches, while the drive means are also connected to the work or workpiece which is to be positioned in accordance with the program. In addition, a plurality of electromechanical transducers are provided which correspond to the number of rotary switches, each of the transducers having switches which are operable between a first and second position, the switches being operable in a first position to actuate the stepping motor and cause rotation thereof, and in a second position to apply the source of power to the next succeeding set of contacts of the sensor means. As described, the transducers are actuable between their first and second positions in a serial manner, each transducer''s actuation being effected by its associated rotary switch.

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