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Hancock Inspirators


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Old 10-18-2011, 08:03:26 PM
Jim Mackessy Jim Mackessy is offline
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Default Hancock Inspirators

Has anybody here used "Hancock Inspirator" type injectors? I was wondering what adjustments are typically made and why, once the initial instructions have been followed and the injector is started. Also, since the overflow is positively shut off, how does one know when the injector "breaks", or isn't this a worry with this type? Thanks in advance;
Jim Mackessy
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Old 10-18-2011, 11:20:57 PM
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David David is offline
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Default Re: Hancock Inspirators

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Originally Posted by Jim Mackessy View Post
Has anybody here used "Hancock Inspirator" type injectors? I was wondering what adjustments are typically made and why, once the initial instructions have been followed and the injector is started. Also, since the overflow is positively shut off, how does one know when the injector "breaks", or isn't this a worry with this type?
The family had a new 1/2" Fairbanks inspirator (identical to the Hancock) that had been around a long time before I was born, so when I got my 6 h.p. Geiser portable, I put it on, since my grandfather had used inspirators in the old days and knew how to start one

They work at a lower pressure than an injector (the Fairbanks will still work just below 10 psi), but when it kicks off, all the valves must be shut or opened to restart it.

When it kicks off, live steam blows through the inspirator back into the makeup water.

They are interesting, and I'm glad to have it on the Geiser. One can readily see why they were quickly replaced by Penberthy, American, U.S., and other makes of injectors.

I have a cut somewhere about inspirators and how they work, and I'll scan it as soon as I find it.

David
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Old 10-19-2011, 08:38:43 AM
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Default Re: Hancock Inspirators

A cut from a 1925 catalog.

It is interesting to note that an inspirator will pump hot water, whereas injectors like the standard Penberthy (00,AA, BB, etc.) will not.

David
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