Stereophonic pick-up

Claim 1

IN A BINAURAL CARTRIDGE MEANS FOR USE WITH V-GROOVE SOUND RECORDS HAVING SEPARATE UNDULATIONS ON THE OPPOSED FACES OF THE GROVE CASING MEANS, SUPPORT MEANS, A PAIR OF TRANSDUCER MEANS EACH HAVING A MOUNTING PORTION AND A DRIVEN PORTION, MEANS TO ATTACH THE MOUNTING PORTIONS OF THE TRANSDUCER MEANS TO SAID CASING MEANS TO POSITION THE DRIVEN PORTIONS IN SPACED SIDE-BY-SIDE RELATIONSHIP, COUPLING MEANS INCLUDING A PAIR OF DOWNWARDLY CONVERGENT ARMS ARRANGED GENERALY NORMAL TO THE PLANES OF THE RESPECTIVE FACES OF A V-GROOVE AND FLEXURALLY JOINED AT THEIR LOWER ENDS, MEANS TO MOUNT THE COUPLING MEANS TO OPERATIVELY ENGAGE THE UPPER PORTIONS OF THE ARMS WITH WITH THE DRIVEN PORTIONS OF THE RESPECTIVE TRANSDUCER MEANS, STYLUS MEANS INCLUDING AN ELONGATED SHANK HAVING A STYLUS TIP AT ONE END, MEANS TO PIVOTALLY MOUNT SAID SHANK ON SAID SUPPORT MEANS, SAID SUPPORT MEANS BEING REMOVABLY ATTACHED TO SAID CASING MEANS, SAID SUPPORT MEANS BEING ENGAGED WITH THE SHANK MEDIALLY OF THE ENDS THEREOF TO POSITION THE OTHER END OF THE SHANK IN OPERATIVE ENGAGEMENT WITH SAID JUNCTURE OF COUPLING ARMS WHEN THE SUPPORT MEANS IS ATTACHED TO THE CASING MEANS TO EXERT A DOWNWARDLY DIRECTED INITIAL STRESS ON SAID ARMS UNDER NO-LOAD CONDITIONS.