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    INDIRECT EXTRUSION PRESS WITH RAM-MOUNTED TURRET SUPPORTING TOOL
    2.
    发明授权
    INDIRECT EXTRUSION PRESS WITH RAM-MOUNTED TURRET SUPPORTING TOOL 失效
    WITH PRESS INDIRECT火车附刀架推杆。

    公开(公告)号：EP0316344B1

    公开(公告)日：1993-10-20

    申请号：EP87905085.4

    申请日：1987-07-17

    Applicant: STEWART, Charles L.

    Inventor： STEWART, Charles L.

    IPC: B21C23/20 ,  B21C23/21

    CPC classification number: B21C23/218 ,  B21C23/214

    Abstract: The indirect extrusion press includes a container (13) with opposite axial ends and an axial cavity for receiving a billet (17). A bolster (21) is disposed adjacent one axial end of the container for blocking movement of a billet out of the cavity when a force is applied against the billet from the other axial end of the container. A ram (31) is mounted on the side of the container adjacent the other axial end of the container for movement in the axial direction of the container. A rotatable turret (43) is mounted on the ram, and a hollow pressing stem (55) is mounted on the turret. The turret is rotatable for placing the hollow pressing stem in a first position aligned with the extrusion axis, and in a second position off of the extrusion axis. When the hollow pressing stem is in the first position it communicates with an axial passage through the ram and can be moved axially, via the ram, to press a die through the cavity to extrude a billet to form an extrusion product. When the hollow pressing stem is in the second position it permits other tooling (57) to perform operations on the extrusion axis of the press.

    BILLET PRE-PIERCER APPARATUS AND METHOD
    3.
    发明公开
    BILLET PRE-PIERCER APPARATUS AND METHOD 失效
    装置和方法用于块的预打孔。

    公开(公告)号：EP0493535A1

    公开(公告)日：1992-07-08

    申请号：EP91901019.0

    申请日：1990-09-20

    Applicant: STEWART, Charles L.

    Inventor： STEWART, Charles L.

    IPC: B21C23 ,  B21J5 ,  B21J9

    CPC classification number: B21J5/10 ,  B21J9/04 ,  H04L5/14

    Abstract: Appareil (10) pour prépoinçonner les billettes (110), composé d'un conteneur (66) généralement cylindrique destiné à recevoir et maintenir une billette (110), elle aussi généralement cylindrique, d'un mandrin (36) monté de manière à pouvoir se déplacer sur l'axe du cylindre afin de percer la billette (110), et d'un porte-matrice (90) qui engage la billette (110) pendant son percement par le mandrin (36). Ledit porte-matrice (90) comprend un tourillon (94) mobile le long de l'axe du conteneur (66) et dont une extrémité entre en contact avec la billette (110) pendant son percement par le mandrin (36), de sorte que cette dernière se déforme aux alentours de cette extrémité. Pendant son déplacement avant le poinçonnement de la billette (110), le mandrin (36) transporte en direction de celle-ci un support mobile (42) conçu de manière à pouvoir pénétrer dans le conteneur (66) et à en engrener une partie, afin de renforcer la rigidité du mandrin (36) et de l'empêcher de fléchir lors du percement de la billette (110).

    INDIRECT EXTRUSION PROCESS AND MACHINERY THEREFOR
    4.
    发明公开
    INDIRECT EXTRUSION PROCESS AND MACHINERY THEREFOR 失效
    间接挤出工艺及其机械设备

    公开(公告)号：EP0296178A4

    公开(公告)日：1990-11-28

    申请号：EP87905417

    申请日：1987-03-04

    Applicant: STEWART, CHARLES L.

    Inventor： STEWART, CHARLES L.

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

    CPC classification number: B21C35/04 ,  B21C23/214 ,  B21C23/218 ,  B21C33/00

    Abstract: An indirect extrusion process, and apparatus therefor, for producing an extrusion product from a hot metal billet (25). A press container (21A) is mounted to be substantially axially stationary during extrusion of a billet. A hot biller (25), a die (27) and a pressure disc (29) are loaded into the axial throughbore (24) of the container (21A) so that the billet is sandwiched between the die (27) and pressure disc (29), with the pressure disc having a maximum outer diameter between opposite radial faces which is slightly less than the diameter of the axial throughbore (24) to define a diametrical clearance (55 and 57) between the pressure disc and the press container. A bolster (31) is located adjacent the pressure disc (29) and is axially fixed to substantially prevent axial movement of the pressure disc in a direction toward the bolster during extrusion. The bolster (31) exerts a relatively insignificant axial force against the container (21A). An elongated stem (17) 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 (19) in the stem, while extrusion of the billet through the diametrical clearance between the pressure disc and the container is substantially avoided.

    INDIRECT EXTRUSION PROCESS AND MACHINERY THEREFOR
    6.
    发明授权
    INDIRECT EXTRUSION PROCESS AND MACHINERY THEREFOR 失效
    反向挤压工艺和器件TO。

    公开(公告)号：EP0296178B1

    公开(公告)日：1994-12-28

    申请号：EP87905417.9

    申请日：1987-03-04

    Applicant: STEWART, Charles L.

    Inventor： STEWART, Charles L.

    IPC: B21C23/00 ,  B21C33/00 ,  B21C35/04

    CPC classification number: B21C35/04 ,  B21C23/214 ,  B21C23/218 ,  B21C33/00

    Abstract: An indirect extrusion process, and apparatus therefor, for producing an extrusion product from a hot metal billet (25). A press container (21A) is mounted to be substantially axially stationary during extrusion of a billet. A hot biller (25), a die (27) and a pressure disc (29) are loaded into the axial throughbore (24) of the container (21A) so that the billet is sandwiched between the die (27) and pressure disc (29), with the pressure disc having a maximum outer diameter between opposite radial faces which is slightly less than the diameter of the axial throughbore (24) to define a diametrical clearance (55 and 57) between the pressure disc and the press container. A bolster (31) is located adjacent the pressure disc (29) and is axially fixed to substantially prevent axial movement of the pressure disc in a direction toward the bolster during extrusion. The bolster (31) exerts a relatively insignificant axial force against the container (21A). An elongated stem (17) 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 (19) in the stem, while extrusion of the billet through the diametrical clearance between the pressure disc and the container is substantially avoided.

    ELECTRO-MECHANICAL PROPULSION SYSTEM
    10.
    发明公开
    ELECTRO-MECHANICAL PROPULSION SYSTEM 无效
    机电驱动系统。

    公开(公告)号：EP0085100A1

    公开(公告)日：1983-08-10

    申请号：EP82902770.0

    申请日：1982-07-29

    Applicant: STEWART, Charles F. ,  STEWART, Jack K.

    Inventor： STEWART, Charles F. ,  STEWART, Jack K.

    IPC: B60K6 ,  B60L11 ,  B60W10

    CPC classification number: B60W10/08 ,  B60K6/46 ,  B60L11/08 ,  Y02T10/6217 ,  Y02T10/70 ,  Y02T10/7077

    Abstract: Système de propulsion électromécanique pour véhicules, dans lequel le moteur premier (10), tel qu'un moteur à combustion interne, entraîne un générateur de tension alternative (20) par l'intermédiaire d'un premier arbre (30) à un nombre de tours/minute constant commandé par un régulateur de vitesse (40); dans ce système le générateur de tension alternative (20) sert de source d'énergie pour une unité de conversion d'énergie électrique comprenant un redresseur commandé (50), un générateur de signaux polyphasés (100), une unité de commande analogique (150) et une alimentation en courant continu stabilisé (140), constituant une source de fréquence et de puissance variable pour un moteur de traction à courant alternatif (60) couplé au système d'entraînement des roues du véhicule (80) au travers d'un deuxième arbre (70). Une commande manuelle ou par pédale du système de la part de l'opérateur est en outre possible au moyen d'un potentiomètre de commande de vitesse (110), d'un potentiomètre de commande d'accélération (120) et d'un potentiomètre de commande de couple (130).

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