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Columbia fall-off cranks--original?

Posted: Sat Feb 20, 2021 1:17 pm
by jboger
I've uploaded a picture of two Columbia cranks. Not sure the bottom is a genuine Columbia crank although it came with a first version AT. Prior to this crank, all Columbia cranks that I've seen have a bend in the arm like the top one. Not this one. Seems to be nickel-plated brass. Works perfectly fine on the AT.

Is it a genuine, correct for the period, Columbia crank?

Re: Columbia fall-off cranks--original?

Posted: Sat Feb 20, 2021 4:04 pm
by JerryVan
I believe it's genuine.

Re: Columbia fall-off cranks--original?

Posted: Sat Feb 20, 2021 4:44 pm
by Jerry B.
I agree...original.

Jerry B.

Re: Columbia fall-off cranks--original?

Posted: Sat Feb 20, 2021 7:12 pm
by jboger
Thank you.

Re: Columbia fall-off cranks--original?

Posted: Sat Feb 20, 2021 8:23 pm
by Curt A
I may be wrong, but I think the straight one is for a top wind AJ, similar to a Berliner crank...

Re: Columbia fall-off cranks--original?

Posted: Tue Feb 23, 2021 10:59 am
by Menophanes
My AT, which dates from the 'New York & Paris' period, has exactly the same crank as jboger's lower example.

I notice that this tends to brush against the ball of the right-hand lid-latch during winding. Was the bent-arm version perhaps introduced on later examples of this model in order to avoid this minor but irritating problem?

Oliver Mundy.

Re: Columbia fall-off cranks--original?

Posted: Tue Feb 23, 2021 12:09 pm
by phonogfp
Yes, Oliver, you are correct.

The crank with the straight drop was used on earlier Graphophones such as the N, A, AN, and the very first ATs in the A cabinet.

George P.