Abstract: A method of assembling a belt drive of a record player includes engaging the belt around a drum of a record player, holding the belt with a hook member, engaging the turntable with a deck plate, rotating the turntable by hand until the belt engages an abutment which causes the belt to disengage the hook and engage the motor driving spindle. The invention also provides a record player for use in the method.

Abstract: A speed change device for a record player which has a belt drive engaged with a drive pulley on the turntable and with a stepped pulley driver by an electric motor, having a pivotally mounted, belt engaging arm which is acted on by cam means to move the arm in a direction to move the belt outwardly of the stepped pulley, in a direction to move the belt along a path parallel to the axis of the stepped pulley and in a direction to move the belt transversely inwardly of the stepped pulley.

Abstract: A muting switch for co-operation with the phono sockets of a record player to short circuit the leads from the pick-up, which are connected to the phono socket, at all times except when a record is being played.

Abstract: A spindle adaptor for use with an umbrella center spindle record player said adaptor comprising a spindle adapted, at its lower end, to be received in the normal smaller diameter spindle receiving means of the record player and carrying at its upper end a body member having a record supporting means movable between an extended position to support a stack of large center hole records and a retracted position allowing the lowermost, or the last, record of the stack to descend along the body and a record retaining means movable between an extended position temporarily to support the remainder of the stack of the large center hole records when the support means is in its retracted position and a retracted position to permit free passage of said records along the body and a control member within the spindle and movable to cause movement of the record retaining means and the record supporting means between said extended and retracted positions.

Abstract: Automatic switch-off mechanism for a single play record player having a manually operated dash pot type cue-in device for the pick-up arm, trip mechanism which is operated by the movement of the pick-up arm when the stylus enters the "run-out" groove of a record so that the trip mechanism moves a switch-off device to effect the switch-off sequence and a locking device to hold the trip mechanism in a locked position in which it cannot operate, the locking device being coupled to the manually operable member which operates the cue-in device so that the locking device is released from the trip mechanism only when the cue-in device is operated to allow the pick-up arm to descend.