US171086A - Improvement in throttle-valves - Google Patents

Improvement in throttle-valves Download PDF

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Publication number
US171086A
US171086A US171086DA US171086A US 171086 A US171086 A US 171086A US 171086D A US171086D A US 171086DA US 171086 A US171086 A US 171086A
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Prior art keywords
valves
throttle
valve
improvement
steam
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Expired - Lifetime
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/44—Details of seats or valve members of double-seat valves
    • 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
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86718—Dividing into parallel flow paths with recombining
    • Y10T137/86759—Reciprocating
    • Y10T137/86767—Spool
    • Y10T137/86783—Unequal heads

Definitions

  • the nature of this invention relates to an improvement in throttle-valves for locomotive engines, which, instead of being a slide located at the inner end of the steam-pipe in the steamdome, is a double puppet lmlance-valve, located at the branch or T-head of the steam-pipe outside the front flue-sheet, the object being, first, to so construct the valve that it may he nearly or quite balanced, it so desired; and, secondly, to render the valve, seats, and connections accessible without the necessity of goining into the shell of the boiler.
  • Figure l is a longitudinal vertical section through the steam-pipe, T-head, and valveseats, showing the throttle in side elevation, the front end of the boiler being also included in the section to show the application of the valve.
  • Fig. 2 is a front elevation.
  • Fig. 3 is an enlarged plan of the T-hea-d.
  • A represents the front fluesheet of a locomotiveboiler
  • B the steampipe, to the front end of which is secured the T-head C, from the sides of which the'branch steam-pipes B extend to the steam-chests.
  • Thead is chambered, (as seen in Fig.
  • valve-seats 1, at each opening in the top and bottom diaphragms of the shell, which openings are closed by two puppet valves, (1 I), mounted on a spindle, D, playing through a stuffing-box, c, in the cap of the T-head, the said stuffing-box also extending through the top of the smoke-box, on top of which two brackets, E, are bolted, between which an arm, F, is keyed on a shaft, Gr, journaled in said brackets.
  • the top of the valvestem is connected with the end of the arm F by a link, H.
  • a pendent arm, I from which a rod extends back into the cab within reach of the enginedriver.
  • the upper one, a has a little more area than the lower one, b, so that the upward pressure of the steam, under the latter, will not quite equal its downward pressure upon the former, so that the valve will always have a tendency to seat itself, if left uncontrolled.
  • T-head can be so chambered that the steam-pressure will be exerted upon the valves between the seats, instead of at top and bottom, as shown.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Turbines (AREA)

Description

. R. BIESTER.
THROTTLE-VALVE.
Patented Dec.14.-,1875.
WITNESSES INVE NTOR WW WW ER. WASHINGTON. D C,
W PETERS PNOT UNITED STATES PATENT OFFICE.
RUDOLPH BIESTER, OF CHICAGO, ILLINOIS.
IMPROVEMENT IN THROTTLE-VALVES.
Specification forming part of Letters Patent No. 171,086, dated December 14, 1875; application filed October 8, 1873.
To all whom it may concern:
Be it known that I, RUDOLPH BIESTER, of Chicago, in the county of Cook and State of Illinois, have invented an Improved Throttle Valve for Locomotive-Engines, of which the following is a specification:
The nature of this invention relates to an improvement in throttle-valves for locomotive engines, which, instead of being a slide located at the inner end of the steam-pipe in the steamdome, is a double puppet lmlance-valve, located at the branch or T-head of the steam-pipe outside the front flue-sheet, the object being, first, to so construct the valve that it may he nearly or quite balanced, it so desired; and, secondly, to render the valve, seats, and connections accessible without the necessity of goining into the shell of the boiler.
Figure l is a longitudinal vertical section through the steam-pipe, T-head, and valveseats, showing the throttle in side elevation, the front end of the boiler being also included in the section to show the application of the valve. Fig. 2 is a front elevation. Fig. 3 is an enlarged plan of the T-hea-d.
In the drawing, A represents the front fluesheet of a locomotiveboiler, and B the steampipe, to the front end of which is secured the T-head C, from the sides of which the'branch steam-pipes B extend to the steam-chests. The Thead is chambered, (as seen in Fig. 1,) with two valve-seats, one at each opening in the top and bottom diaphragms of the shell, which openings are closed by two puppet valves, (1 I), mounted on a spindle, D, playing through a stuffing-box, c, in the cap of the T-head, the said stuffing-box also extending through the top of the smoke-box, on top of which two brackets, E, are bolted, between which an arm, F, is keyed on a shaft, Gr, journaled in said brackets. The top of the valvestem is connected with the end of the arm F by a link, H.
On the out-board end of the shaft G is keyed a pendent arm, I, from which a rod extends back into the cab within reach of the enginedriver.
In the present valve the upper one, a, has a little more area than the lower one, b, so that the upward pressure of the steam, under the latter, will not quite equal its downward pressure upon the former, so that the valve will always have a tendency to seat itself, if left uncontrolled.
It is evident that the T-head can be so chambered that the steam-pressure will be exerted upon the valves between the seats, instead of at top and bottom, as shown.
I do not claim the invention of the balanced puppet-valves, as such have long been in use on stationary and marine engines.
What I claim as my invention is The combination of the puppet-valve a b D, arranged within the T-head U,witl1 the brackets E. arms F and I, shaft G, and link H,
constructed and arranged substantially as described, -for the purpose set forth.
. RUDOLPH BIESTER. Witnesses:
WM. H. LoTz, HENRY BLANK.
US171086D Improvement in throttle-valves Expired - Lifetime US171086A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050054665A1 (en) * 2003-09-05 2005-03-10 3M Innovative Properties Company Treatment for CD5+ B cell lymphoma
US20050282854A1 (en) * 2000-12-08 2005-12-22 3M Innovative Properties Company Amide substituted imidazopyridines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050282854A1 (en) * 2000-12-08 2005-12-22 3M Innovative Properties Company Amide substituted imidazopyridines
US20050054665A1 (en) * 2003-09-05 2005-03-10 3M Innovative Properties Company Treatment for CD5+ B cell lymphoma

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