Mat for record player turntable - accommodates twelve inch and seven inch records having different size central holes

摘要

The circular mat (1) is placed onto the turntable (2) so that the central spindle (3) protrudes through the control hole (4) in the mat. A 7 inch single record (7), which has a 38 mm central hole (6) fits over a raised central portion (5) of the mat, and drops into a ring-shaped trough (9) in the mat. Radial finger grooves extend from the outer edge of the trough (9) to simplify extraction of the single. 12 inch L.P. records (10) have a central hole (11) which fits over the spindle (3) and rests on the raised central surface (5) and the outer ring surface (8).