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    ORTHODONTIC END BRACKET
    114.
    发明专利
    ORTHODONTIC END BRACKET 未知

    公开(公告)号：GB2364247A

    公开(公告)日：2002-01-23

    申请号：GB0109526

    申请日：2001-04-17

    Applicant: COLE STEWART CHARLES

    Inventor： COLE STEWART CHARLES

    IPC: A61C7/14 ,  A61C7/28

    Abstract: An end bracket comprising a base 40, possessing two primary wings 42 and 43 parallely located and vertically arising from the base whose inner surfaces are angled outwards at the same end of the base so as to define an expanding slot 41. The wings may be joined to define a tube. A secondary wing 44 is mounted offset from the centre of the base between the primary wings so as to divide the expanded portion of the slot 41 into two diverging slots 41A and 41B on either side of it. The direction of force exerted by the bracket on the wire connecting the braces fixed to the teeth may be altered by moving the wire between the divergent slots.

    115.
    发明专利
    未知

    公开(公告)号：DE69024059D1

    公开(公告)日：1996-01-18

    申请号：DE69024059

    申请日：1990-09-20

    Applicant: STEWART CHARLES L

    Inventor： STEWART CHARLES L

    IPC: H04B7/26 ,  B21C23/08 ,  B21J5/10 ,  B21J9/04 ,  H03K5/156 ,  H04B20060101 ,  H04B3/60 ,  H04B7/00 ,  H04L5/14 ,  H04L12/40

    Abstract: An apparatus for pre-piercing billets includes a generally cylindrical container for receiving and supporting a generally cylindrical billet, a mandrel bar mounted for axial movement along the axis of the cylinder for penetrating the billet, and a bolster for engaging the billet during penetration of the billet by the mandrel bar, wherein the bolster includes a bolster pin which is axially movable along the axis of the container, the bolster pin having an end which contacts the billet during penetration of the billet by the mandrel bar such that the billet deforms about the end of the bolster pin. A movable support is carried by the mandrel bar toward the billet during advancement of the mandrel bar prior to pre-piercing the billet, the movable support being configured to enter the generally cylindrical container to engage a portion of the container so as to provide additional structural rigidity to the mandrel bar to resist deflection of the mandrel bar during penetration of the billet.

    116.
    发明专利
    未知

    公开(公告)号：DE3750932D1

    公开(公告)日：1995-02-09

    申请号：DE3750932

    申请日：1987-03-04

    Applicant: STEWART CHARLES L

    Inventor： STEWART CHARLES L

    IPC: B21C23/00 ,  B21C20060101 ,  B21C23/20 ,  B21C23/21 ,  B21C25/00 ,  B21C33/00 ,  B21C35/04 ,  B21C35/06

    Abstract: An indirect extrusion process, and apparatus therefor, for producing an extrusion product from a hot metal billet. A press container is mounted to be substantially axially stationary during extrusion of a billet. A hot billet, a die and a pressure disc are located into the axial throughbore of the container so that the billet is sandwiched between the die and pressure disc, with the pressure disc having a maximum outer diameter between opposite radial faces which is slightly less than the diameter of the axial throughbore to define a diametrical clearance between the pressure disc and the press container. A bolster is located adjacent the pressure disc and is axially fixed to substantially prevent axial movement of the pressure disc in a direction toward the bolster during extrusion. The bolster exerts a relatively insigificant axial force against the container. An elongated stem having an axial passage is moved into the throughbore of the container to press the die toward the bolster, causing the billet to be extruded through the die to create an extrusion product which exits the container through the axial passage in the stem, while extrusion of the billet through the diametrical clearance between the pressure disc and the container is substantially avoided.

    117.
    发明专利
    未知

    公开(公告)号：AT116166T

    公开(公告)日：1995-01-15

    申请号：AT87905417

    申请日：1987-03-04

    Applicant: STEWART CHARLES L

    Inventor： STEWART CHARLES L

    IPC: B21C23/00 ,  B21C20060101 ,  B21C23/20 ,  B21C23/21 ,  B21C25/00 ,  B21C33/00 ,  B21C35/04 ,  B21C35/06

    Abstract: An indirect extrusion process, and apparatus therefor, for producing an extrusion product from a hot metal billet. A press container is mounted to be substantially axially stationary during extrusion of a billet. A hot billet, a die and a pressure disc are located into the axial throughbore of the container so that the billet is sandwiched between the die and pressure disc, with the pressure disc having a maximum outer diameter between opposite radial faces which is slightly less than the diameter of the axial throughbore to define a diametrical clearance between the pressure disc and the press container. A bolster is located adjacent the pressure disc and is axially fixed to substantially prevent axial movement of the pressure disc in a direction toward the bolster during extrusion. The bolster exerts a relatively insigificant axial force against the container. An elongated stem having an axial passage is moved into the throughbore of the container to press the die toward the bolster, causing the billet to be extruded through the die to create an extrusion product which exits the container through the axial passage in the stem, while extrusion of the billet through the diametrical clearance between the pressure disc and the container is substantially avoided.

    120.
    发明专利
    未知

    公开(公告)号：DE3280326D1

    公开(公告)日：1991-05-29

    申请号：DE3280326

    申请日：1982-07-29

    Applicant: STEWART CHARLES F ,  STEWART JACK K

    Inventor： STEWART CHARLES F ,  STEWART JACK K

    IPC: B60K6/46 ,  B60L50/13 ,  B60W10/08 ,  B60K1/00

    Abstract: An Electro-Mechanical Propulsion System for vehicles, wherein the prime mover 10, such as an internal combustion engine, drives an alternating voltage generator 20 through a first shaft 30 at a constant RPM controlled by a speed governor 40; and wherein the alternating voltage generator 20 serves as a source of energy for an electrical energy conversion unit comprising a controlled rectifier 50, a polyphase signal generator 100, an analog control unit 150, and a regulated DC power supply 140, to further provide a variable power and frequency source for an AC traction motor 60 coupled through a second shaft 70 to the vehicle wheel drive system 80. Operator manual or pedal control of the system is further provided by a speed control potentiometer 110, an acceleration control potentiometer 120, and a torque control potentiometer 130.

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