A thingummyjig

[Ross Macintosh]

Amazon sells them "45 rpm adaptors" or "spindle adaptors". Just ask DJ>MasterBlaster.

[handrawn]

I think [long time ago] what we called an 'adaptor' was what you put on your dansette [portable record player] so you could play punched out 45's without any of them needing an insert ...

[ss-kalm]

The Bang and Olufsen turntable (Beocentre 7000) I had at the time, had a wide adapter on a spring on a standard spindle, so if the record had a centre it would just depress the adapter, and if not it sat around it.