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    43.
    发明专利
    未知

    公开(公告)号：FR2012859A1

    公开(公告)日：1970-03-27

    申请号：FR6923680

    申请日：1969-07-11

    Applicant: PRESS UND STANZWERK AG

    IPC: B21J5/06 ,  B21K21/04 ,  C21D9/16 ,  F42B5/28 ,  B21D51/00

    Abstract: 1,263,938. Making cartridge cases; upsetting. WERKZEUGMASCHINEN-FABRIK OERLIKON-BUHRLE A.G. 11 July, 1969 [12 July, 1968; 16 July, 1968 (2)], No. 35107/69. Headings B3A and B3H. [Also in Division F3] A cartridge case is made by cold upsetting a blank sheared from a bar stock, backward extruding the blank and axially pressing the cupped article formed to shape the base of the case in one pressing. The degree of upsetting is selected so that any defects in the blank become visible as surface cracks. The defective blanks are sorted out either visually, mechanically, electrically or pneumatically. The bar stock is steel with a carbon content of below 0À3%, preferably 0À16 to 0À25%. The cupped article is heat treated to restore the strain-hardening property to the steel. The heat treatment comprises heating the article to above the A3 transformation point, holding this temperature for 1 to 5 minutes and rapidly cooling at 50‹ to 100‹ C. per minute. The heating may be induction or by a gas or oil furnace. This treatment prevents the formation of coarse grains particularly between the base and side walls of the case.

    Windscreen wiper with variable-length arm especially for private car
    47.
    发明专利
    Windscreen wiper with variable-length arm especially for private car 未知

    公开(公告)号：DE19616808A1

    公开(公告)日：1997-10-30

    申请号：DE19616808

    申请日：1996-04-26

    Applicant: PRESS UND STANZWERK AG

    Inventor： KRAETTLI CHRISTIAN ,  GRAF MARTIN

    IPC: B60S1/08 ,  B60S1/18 ,  B60S1/34 ,  B60S1/36

    Abstract: The windscreen (13) is wiped in both directions from its centre by an oscillatory arm with one part (12) sliding into and out of the other part (11). The two parts are driven by separately switchable motors (9,10) co-ordinated by a microprocessor (2). The pivot motor (9) is fitted with an angular position sensor (5), and the slide motor (10) has a displacement sensor (6). Each sensor is wired to a processing circuit (3;4) from which the microprocessor accepts signals and issues commands to the power stages (7,8) of the respective drives.

    48.
    发明专利
    未知

    公开(公告)号：DE29601090U1

    公开(公告)日：1996-06-13

    申请号：DE29601090

    申请日：1996-01-23

    Applicant: PRESS UND STANZWERK AG

    IPC: B60S1/36

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