US186783A - Improvement in safety-valve attachments to utilize the escape-steam - Google Patents

Improvement in safety-valve attachments to utilize the escape-steam Download PDF

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US186783A
US186783A US186783DA US186783A US 186783 A US186783 A US 186783A US 186783D A US186783D A US 186783DA US 186783 A US186783 A US 186783A
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steam
safety
escape
valve
improvement
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/14—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to other specific conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
    • F28D20/0039—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material with stratification of the heat storage material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7929—Spring coaxial with valve

Definitions

  • the main object of my invention is to do away with all these objections, and my invention consists in conducting the steam which escapes from the safety valve or valves to the tank which contains the feed-water, thereby preventing all visible escape of the steam, all noise attending such escape, and utilizing a very large percentage of such steam by causing it to heat the feed-water.
  • the apparatus is exceedingly simple, as is obvious from the above description. It consists merely of a proper chamber about the valve and proper pipes connecting this chamber with the feed-water.
  • A indicates a locomotive, B its tender, 0 one of its safety-valves, andD a pipe connecting the valve-casing with the feed-water tank in the tender.
  • the best form of valve known to me for practising my invention is shown in section in Fig. 2. It is too well known to need description, other than that its casing is closed sufficiently to compel the steam which escapes through the valve proper to pass through the pipe D into the feed-water. To this end the valve-stem should be properly packed, as shown in the drawings.

Description

H. G. ASHTON.
SAFETY-VALVE ATTACHMENT T0 UTILIZE THE E SCAPE STEAM.
Pate'ntedll'an. 30,1877.
N.PETERS, PHOTO-LITHDGRAPHER. WASHINGTON D, C.
NITED STATES HENRY G. ASHTON, OF BOSTON, MASSACHUSETTS.
IMPROVEMENT IN SAFETY-VALVE ATTACHMENTS T0 UT|L|ZE THE ESCAPE-STEAM.
Specification forming part of Letters Patent No. 186,783, dated January 30, 1877; application filed November 29, 1875.
To all whom it may concern:
Be it known that I, HENRY G. ASHTON, of Boston, Massachusetts, have invented an Improvement in Locomotives and other Steam- Engines, which is fully described in this specification, referencebein g had to the accompanying drawings, making a part hereof.
The steam which escapes from the safetyvalves of locomotives, and all other steamengines known to me, has heretofore escaped into the open air. This is highly objectionable in locomotives because of the noise, which, as well as the sight of it, has frequently caused damage by frightening teams and otherwise. Moreover, the steam thus escaping is entirely wasted.
The main object of my invention is to do away with all these objections, and my invention consists in conducting the steam which escapes from the safety valve or valves to the tank which contains the feed-water, thereby preventing all visible escape of the steam, all noise attending such escape, and utilizing a very large percentage of such steam by causing it to heat the feed-water.
The apparatus is exceedingly simple, as is obvious from the above description. It consists merely of a proper chamber about the valve and proper pipes connecting this chamber with the feed-water.
In the drawings, A indicates a locomotive, B its tender, 0 one of its safety-valves, andD a pipe connecting the valve-casing with the feed-water tank in the tender. The best form of valve known to me for practising my invention is shown in section in Fig. 2. It is too well known to need description, other than that its casing is closed sufficiently to compel the steam which escapes through the valve proper to pass through the pipe D into the feed-water. To this end the valve-stem should be properly packed, as shown in the drawings.
I have described the best form of my apparatus; but it is obvious that my invention is not confined to any one form; its distinguishing characteristic being conducting the steam which escapes through the safetyvalve into the feed-water instead of allowing it to escape into the open air.
I am aware of the English patent of Thom as Yarroll, No. 758, of 1857, and desire to disclaim the apparatus therein shown.
What I claim as myinvention is The combination of the safety-valve and feed-water tank, asdescribed, in order that the steam which escapes through the valve shall be conducted into the feed-Water, as and for the purposes specified.
HENRY G. ASHTON. Witnesses:
CHAS. F. SLEEPER, J. E. MAYNADIER.
WFEI.
US186783D Improvement in safety-valve attachments to utilize the escape-steam Expired - Lifetime US186783A (en)

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