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MMD > Archives > February 1998 > 1998.02.21 > 07Prev  Next


Wurlitzer Four-in-one Valves
By Hal Davis

About thirty years ago I had a Wurlitzer Style W, made in 1936, that
used the four-in-one valves.  They were made of a material called Hoyt
metal, or pot metal.

I called the foundry in Brooklyn, New York, where they were originally
made and tried to find out if I could get some more.  I was fortunate
to talk with a woman that had worked there when they were making those
valves for Wurlitzer.  She informed me that the dies, or molds, for
those valves had been turned in during the war so I was out of luck
there, but it was interesting talking with someone who remembered them.

(A side note: Mills Novelty Company in Chicago, Illinois, disposed of
their dies and molds for some of the parts for the Violano Virtuoso
about the same time, for the war effort.)

I later contacted my friend, Mel Walker, of Oak Creek, Wisconsin,  and
let him know of my efforts, as he too needed to replace some of these
valves.  He wound up having some cast of aluminum at a local foundry in
the Milwaukee area.  I don't remember the cost but it was not
prohibitive.  I cast my own here also of aluminum and finished them
using my vertical mill and running the channels and plugging up the end
holes as Tommy Fortney observed on the originals.

They are not really difficult to make if you have the know-how and the
equipment, otherwise it might be best to have someone at a foundry make
the castings for you, and then either get someone to finish them or, if
you have a vertical mill or even a drill press, you could do it
yourself.

The only thing I noticed was that the reproductions that Mel had made
as well as the ones that I made shrank slightly and when compared to
the originals that we used as patterns were slightly smaller but it was
not a problem.

In fact, it may be that the original Hoyt metal may have "grown" as it
has been known to do over the years.

Hal Davis


(Message sent Sat 21 Feb 1998, 11:25:19 GMT, from time zone GMT-0800.)

Key Words in Subject:  Four-in-one, Valves, Wurlitzer

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