GB454337A - Improvements in and relating to automatic record changers for gramophones - Google Patents

Abstract

454,337. Magazine gramophones. COMPARE, A., 26, Alandale Drive, Pinner, Middlesex. April 18, 1935, No. 31200. Divided out of 439,106. [Class 40 (ii)] Relates to magazine gramophones of the kind in which the records are supported above the turntable by a vertical post from which they are dropped in turn on to the turntable, for playing. According to the invention, the magazine post embodies two parts, formed respectively with a shoulder and an abutment, and is so mounted that one part may be moved relatively to the other, first so that the post constitutes a smooth spindle on which a stack of records may easily be threaded, and then into a position in which the shoulder forms a support under the lowest record and in which the abutment is located just above the top surface of that record ; release of the lowest record from the post is effected by moving it laterally, whilst the abutment prevents lateral movement of the other records. The construction and operation of a machine embodying the invention are described in Specification 439,106. In a modified form of record-release mechanism, shown in the Figure instead of an offset base being provided on the end of a movable bell-crank lever, a base 113 is carried by fixed arms 312, disposed between the arms 318 of a member 218<a>. A central finger 118, as well as the part 218<a>, is pivoted at 112<a>, and when the members 118, 218<a> rock into their normal position, as shown, the base 113, which lies above the turntable spindle 110, provides the shoulder 114. When the part 218<a> is moved, against the action of a spring 316, so as to align the arms 318 with the base 113, the finger 118 is similarly moved by an extension 218<b> of the member 218<a> so that the assemblage then forms a smooth post on which the records can easily be threaded. The top record of a pile thus located on the post acts upon a crank (not shown), which turns a spindle 323 into the position shown in the Figure, allowing the spring 316 to move the members of the post into position for retaining the records.