Photo Index - Ashton Valve Co. - #78C Improved alarm gauge

Machinery Photo Index

Manufactured/Badged by:
Ashton Valve Co.
Boston, MA; Cambridge, MA

Machine Specifications
Machine Class:	Steam and Gas Engines
Machine Type:	Engine, Steam - Stationary
Machine Size:
Submitted By:	Rick Ashton

Machine Specifications
Description/Model:	#78C Improved alarm gauge
Date of Manufacturer:
Serial Number:
Last Updated	4/27/2020 7:07:26 PM

Comments:

The alarm gauge is a great idea. Setting the high and low limits of pressure , the gauge will set off an alarm if either limit is passed. As one article stated,"possibly waking up the sleeping mechanic" if there is an issue. The gauge below is another ebay purchase. The serial number puts the manufacturing date of this item to around 1925.

Photo 1:

Comments: Alarm gage
Source: personal collection

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Photo 2:

Comments: circa 1920's catalog page
Source: personal collection

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Photo 3:

Comments: Alarm gage patent
Source: google patents

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Photo 4:

Comments: 1915 advert
Source: google books

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Photo 5:

Comments: alarm gauge patent
Source: google patents

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Photo 6:

Comments: alarm gage
Source: personal collection

Direct Link
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