US1607948A - Thermostatic alarm device - Google Patents

Thermostatic alarm device Download PDF

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Publication number
US1607948A
US1607948A US748024A US74802424A US1607948A US 1607948 A US1607948 A US 1607948A US 748024 A US748024 A US 748024A US 74802424 A US74802424 A US 74802424A US 1607948 A US1607948 A US 1607948A
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United States
Prior art keywords
alarm device
seid
mercury
screw
thermostatic
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US748024A
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Grabowski John
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Individual
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Individual
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Priority to US748024A priority Critical patent/US1607948A/en
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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00Fire alarms; Alarms responsive to explosion
    • G08B17/04Hydraulic or pneumatic actuation of the alarm, e.g. by change of fluid pressure

Definitions

  • INVENTOR ATTORNEY means connected to Said screw to indicate the temperature et which tire seid oet will close the seid switch for each adgnstment of the seid screw, characterized by seid screw being' provided neer its lie-ed with vertically spaced radial llunges, oet/Ween which projects one und 'the horizontal erm of e beil mani; that is fulcruined to e board, tbe other ern; of this crank being in the form of e pointer that extends u Werds, and registers with nn indicating see e on the said beard.

Description

Nov. 23 1926.
,607,948 J. GRABOWSKI THERMOSTAT C ALARM DEVI CE Filed Nov. 6, 1924 INVENTOR ATTORNEY means connected to Said screw to indicate the temperature et which tire seid oet will close the seid switch for each adgnstment of the seid screw, characterized by seid screw being' provided neer its lie-ed with vertically spaced radial llunges, oet/Ween which projects one und 'the horizontal erm of e beil mani; that is fulcruined to e board, tbe other ern; of this crank being in the form of e pointer that extends u Werds, and registers with nn indicating see e on the said beard.
The combination in n device of the class described 1gnoviuled with en adjusting screw bearing on the fienible bottom member of a ineicnry-iilled receptacle, with e float supported by the mercury, und nligned to close e Switch upon the expanding, by beating, or :said mercury, of vertically spaced radial tinnges integral with said adjusting screw, e bell crank lever fulcrumed to a board, heving its horizontal erin projecting between seid flanges, and its other arm in the form Lemme of a pointer extending upwards, and regis- 1toerin with an indicating scale on the'said OST 3., The combination in u. device of the class described provided 'with an adjusting screw bearing on the leXible bottom member of a mercury-filled receptacle, with a. float supported by the mercury, and aligned to close a. switch upon the expanding, by heating, of Said mercury, ofvertically spaced radia ianges integral with seid ad'usting screw,l
whereof I `have affixed my JOHN GRAisoWsKr.
US748024A 1924-11-06 1924-11-06 Thermostatic alarm device Expired - Lifetime US1607948A (en)

Priority Applications (1)

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US748024A US1607948A (en) 1924-11-06 1924-11-06 Thermostatic alarm device

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US748024A US1607948A (en) 1924-11-06 1924-11-06 Thermostatic alarm device

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