Abstract 1,031,977. Supporting magnetic heads. EXCELL-O CORPORATION. Sept. 21, 1964 [Sept. 30, 1963], No. 38367/64. Heading G5R. A transducing head 10 of the type which rests on a fluid bearing produced by movement of the surface of the record 12 is held in a shoe 28 supported by resilient means 30 from a support 32 which is adjustable only in a plane parallel to the transducing gap 18. The support 32 fits slidably in a slot 56 of a mounting bar 54 to which it is clamped by a screw 64 after adjustment to the optimum position by an adjusting tool 70 which can move the support towards the record against the bias of a compression spring 68. The shoe 28 may comprise a potting compound in which the head 10 and its magnetic shield 20 is embedded, and is provided with a bearing surface 29 flush with the surface of the head. The support members 30 comprise a pair of flat resilient reeds of metal or plastic preferably formed of a single piece of material bent as shown. An arm 42 of the support 32 carries a connector 44 for the leads to the head. In a modification, Figs. 4-6 (not shown), the support 32 is bent away from the head so that the plane of the gap 18 coincides with the plane of the locating face of slot 56, and the compression spring biasing the support away from the record is arranged obliquely so that the support is also located against a side face of the slot 56.
APPARATUS FOR RESILIENTLY SUPPORTING AT LEAST ONE ELECTROMAGNETIC TRANSDUCER HEAD A PREDETERMINED DISTANCE AWAY FROM A MOVING MAGNETIZABLE RECORD SURFACE BY UTILIZING THE FLUID BEARING PRODUCED BY THE GAS OR AIR SET IN MOTION BY THE MOVEMENT OF SAID RECORD SURFACE, SAID APPARATUS COMPRISING IN COMBINATION: SAID ELECTROMAGNETIC TRANSDUCER HEAD ENCLOSED IN A MAGNETIC SHIELD AND HAVING A MAGNETIC GAP DISPOSED SO AS TO CONFRONT THE RECORD SURFACE WITH THE AXIS OF SAID MAGNETIC GAP SUBSTANTIALLY ORTHOGONAL TO SAID RECORD SURFACE; A MOLDED SHOE MEMBER HAVING A BEARING SURFACE ADAPTED TO BE SUPPORTED BY THE FLUID BEARING, SAID SHOE MEMBER AT LEAST PARTLY ENCASING THE ELECTROMAGNETIC TRANSDUCER HEAD WITH THE ENDS OF THE POLE PIECES DEFINING ITS MAGNETIC GAP DISPOSED SUBSTANTIALLY FLUSH WITH SAID BEARING SURFACE; A PAIR OF PARALLEL FLAT RESILIENT REED MEMBERS DISPOSED IN SPATIAL RELATIONSHIP ONE ABOVE THE OTHER ALONG PLANES NORMALLY SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF THE ELECTROMAGNETIC TRANSDUCER HEAD MAGNETIC GAP, EACH OF SAID MEMBERS HAVING ONE END IMBEDDED IN THE MOLDED SHOE MEMBER; A FIXED MOUNTING BAR PROVIDED WITH MOUNTING CUT-OUT SLOTS DISPOSED ON ONE SIDE THEREOF; A GENERALLY F-SHAPED MOUNTING BRACKET SUPPORTING THE OTHER END OF THE FLAT RESILIENT REED MEMBERS, SAID MOUNTING BRACKET HAVING A BODY PORTION ADAPTED TO BE SNUGLY DISPOED IN ONE OF THE MOUNTING SLOTS OF THE FIXED MOUNTING BAR SO AS TO BE ADJUSTABLE BY SLIDING ONLY IN A DIRECTION PARALLEL TO THE AXIS OF THE ELECTROMAGNETIC TRANSDUCER HEAD MAGNETIC GAP AND A FLANGE PORTION DISPOSED AT RIGHT ANGLE TO THE BODY PORTION SO AS TO CONFRONT THE SIDE OF THE MOUNTING BAR FARTHEST AWAY FROM THE RECORD SURFACE;
Claim 2
Dependent Claim
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APPARATUS FOR RESILIENTLY SUPPORTING AT LEAST ONE ELECTROMAGNETIC TRANSDUCER HEAD A PREDETERMINED DISTANCE AWAY FROM A MOVING MAGNETIZABLE RECORD SURFACE BY UTILIZING THE FLUID BEARING PRODUCED BY THE GAS OR AIR SET IN MOTION BY THE MOVEMENT OF SAID RECORD SURFACE, SAID APPARATUS COMPRISING IN COMBINATION: SAID ELECTROMAGNETIC TRANSDUCER HEAD ENCLOSED IN A MAGNETIC SHIELD AND HAVING A MAGNETIC GAP DISPOSED SO AS TO CONFRONT THE RECORD SURFACE WITH THE AXIS OF SAID MAGNETIC GAP SUBSTANTIALLY ORTHOGONAL TO SAID RECORD SURFACE; A MOLDED SHOE MEMBER HAVING A BEARING SURFACE ADAPTED TO BE SUPPORTED BY THE FLUID BEARING, SAID SHOE MEMBER AT LEAST PARTLY ENCASING THE ELECTROMAGNETIC TRANSDUCER HEAD WITH THE ENDS OF THE POLE PIECES DEFINING ITS MAGNETIC GAP DISPOSED SUBSTANTIALLY FLUSH WITH SAID BEARING SURFACE; A PAIR OF PARALLEL FLAT RESILIENT REED MEMBERS DISPOSED IN SPATIAL RELATIONSHIP ONE ABOVE THE OTHER ALONG PLANES NORMALLY SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF THE ELECTROMAGNETIC TRANSDUCER HEAD MAGNETIC GAP, EACH OF SAID MEMBERS HAVING ONE END IMBEDDED IN THE MOLDED SHOE MEMBER; A FIXED MOUNTING BAR PROVIDED WITH MOUNTING CUT-OUT SLOTS DISPOSED ON ONE SIDE THEREOF; A GENERALLY F-SHAPED MOUNTING BRACKET SUPPORTING THE OTHER END OF THE FLAT RESILIENT REED MEMBERS, SAID MOUNTING BRACKET HAVING A BODY PORTION ADAPTED TO BE SNUGLY DISPOED IN ONE OF THE MOUNTING SLOTS OF THE FIXED MOUNTING BAR SO AS TO BE ADJUSTABLE BY SLIDING ONLY IN A DIRECTION PARALLEL TO THE AXIS OF THE ELECTROMAGNETIC TRANSDUCER HEAD MAGNETIC GAP AND A FLANGE PORTION DISPOSED AT RIGHT ANGLE TO THE BODY PORTION SO AS TO CONFRONT THE SIDE OF THE MOUNTING BAR FARTHEST AWAY FROM THE RECORD SURFACE;