公开(公告)号：DE2229394A1

公开(公告)日：1973-01-11

申请号：DE2229394

申请日：1972-06-16

Applicant: IBM

Inventor： MAKO JOHN ,  WALLACE JOSEPH EUGENE

IPC: B41J9/38

Abstract: 1325839 Selective printing INTERNATIONAL BUSINESS MACHINES CORP 8 May 1972 [25 June 1971] 21317/72 Heading B6F [Also in Division H1] Hammer mechanism.-A print hammer actuator comprises a main three-legged magnetic core 12 having an operating winding 20 on a centre leg 16, and an armature 22 pivotally supported at 24 adjacent the lower leg 18 with an extension 28 at the other end producing a hammer face. A projection 26 on the armature 22 is opposite the middle leg 16 and moves within the winding 20. A secondary magnetic core 33 on the opposite side of the armature with a restore and damping winding 35 operates to damp oscillations. A spring 23 biases the armature 22 against the secondary magnetic core which is also pivoted at 24 so as to be adjustable with set screws 46 and 48. The third leg 34 of the secondary core 33 acts as the back stop.

公开(公告)号：DE3670793D1

公开(公告)日：1990-06-07

申请号：DE3670793

申请日：1986-09-19

Applicant: IBM

Inventor： WALLACE JOSEPH EUGENE ,  WANG HAN CHUNG

IPC: B41J9/133 ,  B41J9/38

公开(公告)号：GB1300787A

公开(公告)日：1972-12-20

申请号：GB5865370

申请日：1970-12-10

Applicant: IBM

Inventor： BURNS ROBERT CHARLES ,  DREJZA JOHN EDWARD ,  MANNING DONALD FRANKLIN ,  STARK RICHARD LOUIS ,  STILES DONALD JOSEPH ,  WALLACE JOSEPH EUGENE ,  WILSON JOSEPH TOWNSEND III

IPC: B41J9/38

Abstract: 1300787 Electromagnetic actuators INTERNATIONAL BUSINESS MACHINES CORP 10 Dec 1970 [22 Dec 1969] 58653/70 Heading H1P [Also in Division B6] A print hammer actuator assembly comprises a yoke 141 carrying an electromagnet winding 144 and pivotally supporting an armature 148, the yoke 141 itself being pivotally mounted at 138 on a support 139. A spring 135 urges the yoke 141 against a stop leg 139b. The armature 148 is coupled to a print hammer 160 by a connecting rod 182 which is urged against the armature by spring 184.

公开(公告)号：DE3065320D1

公开(公告)日：1983-11-17

申请号：DE3065320

申请日：1980-11-26

Applicant: IBM

Inventor： DAUGHENBAUGH GERALD ALLEN ,  KOOB PHILIP WILLIAM ,  MOXLEY ARTHUR EUGENE ,  WALLACE JOSEPH EUGENE

IPC: G11B5/255 ,  G11B5/39 ,  G11B5/30 ,  G11B5/40

Abstract: A magnetoresistive head assembly comprises a silicon substrate, a magnetoresistive element mounted on the substrate, and sapphire members formed around said substrate in a sandwich type configuration. The portion of the head which interacts in transducing relation with a magnetic medium is so configured as to realize improved wear characteristics as well as good heat dissipation with low thermal noise.

公开(公告)号：DE1188720B

公开(公告)日：1965-03-11

申请号：DEJ0024875

申请日：1963-12-07

Applicant: IBM

Inventor： WALLACE JOSEPH EUGENE

IPC: H01H51/06 ,  H01H51/28

Abstract: 987,207. Electromagnetic relays. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 21, 1963 [Dec. 21, 1962], No. 45927/63. Heading H2B. Contact bounce in a sealed magnetic reed contact unit is reduced by a stop 17 which is engaged by one of the reeds 10 as it moves towards the other one 11. This engagement causes reed 10 to rebound so that the reeds are moving in the same direction when they close. The reeds are made of a nickel-iron alloy and may be coated with contact material at their co-operating ends. The distance between the stop 17 and reed 10 is less than half the distance between reeds 10 and 11.

公开(公告)号：DE1092097B

公开(公告)日：1960-11-03

申请号：DEJ0011070

申请日：1955-12-23

Applicant: IBM DEUTSCHLAND

Inventor： KELLY MARTIN JOHN ,  WALLACE JOSEPH EUGENE

IPC: C22C7/00 ,  H01H29/00 ,  H01H29/06 ,  H01H50/54 ,  H01R13/70

Abstract: A switch contact is made from an amalgam of mercury and a suitable noble metal e.g. gold, silver or palladium. The percentage of gold may be 5.5, 9.3, 11.5, 13.3 or 17.3. Percentage of palladium may be 2.55, 3.70, 4.56 or 6.85, and of silver may be 5.5, 7.20, 9.70 or 14.33. Silver-palladium may be used in the following percentages, 7.20 per cent silver and 0.1 per cent palladium or 14.33 per cent silver and 0.1 per cent palladium.