Phonograph for use with record cartridges

Claim 1

A sound reproducing apparatus for particular use with record cartridges of the type each having a phonograph record on a sheet-like record holder, comprising in combination: a casing; a cartridge holder mounted on said casing for pivotal movement between a first position for receiving a record cartridge and a second position for immovably holding the record cartridge with its record facing downwardly; an upstanding spindle fixedly mounted within said casing and disposed in vertical register with the center of the record when said cartridge holder is in said second position; a turntable mounted on said spindle so as to be both rotatable and movable up and down relative to same; there being an aperture in said turntable; a drive motor having an output shaft underlying the periphery of said turntable; resilient means urging at least said output shaft of said drive motor upwardly into engagement with said turntable thereby urging said turntable upwardly; a tone arm pivotally supported at one end in an eccentric position on said turntable; a reproducing stylus extending upwardly from said tone arm so as to be urged by said resilient means into engagement with a record groove of the record cartridge when said cartridge holder is in said second position, said output shaft of said drive motor being held in frictional contact with the periphery of said turntable in driving relationship when said cartridge holder is in said second position; a speaker cone mounted under said turntable for simultaneous rotation therewith, said speaker cone being disposed in concentric, back-to-back relationship to said turntable; an armature connected to said speaker cone, said armature being at least partly exposed through said aperture in said turntable; and a vibration transmitter rod substantially pivotally supported at one end on said turntable and resting at a point intermediate both ends thereof on said armature exposed through said aperture in said turntable, said tone arm resting at its free end on said vibration transmitter rod for sliding movement, during playback, from the other end of said vibration transmitter rod toward its point of contact with said armature.