[Boatanchors] Western Electric (Nassau) solder

[Richard Knoppow]

     When movie theaters ran nitrate film each projector had a steel 
shutter over the projection port and observation port. These were 
operated by fusible links set over each machine and fastened to the 
cables that held the shutters.  The cables were arranged so that if any 
link fused all the shutters would slam shut.

On 5/11/2015 3:50 PM, Jim Haynes wrote:
> There was also something called 1-A Fire Detection Wire which appeared to
> be simply rosin core solder with a red fabric insulating jacket over it.
> This was run over cable forms with the idea that it would melt in case
> of fire and set off an alarm.  I say it looked like ordinary solder, but
> I don't know if the melting point was the same.
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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL