US687831A - Blast-pipe safety-valve. - Google Patents

Blast-pipe safety-valve. Download PDF

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Publication number
US687831A
US687831A US1901074756A US687831A US 687831 A US687831 A US 687831A US 1901074756 A US1901074756 A US 1901074756A US 687831 A US687831 A US 687831A
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Prior art keywords
blast
pipe
valve
air
casing
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Expired - Lifetime
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Joseph O Charpentier
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Individual
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Priority to US1901074756 priority Critical patent/US687831A/en
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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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • 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
    • Y10T137/7908—Weight biased
    • Y10T137/7909—Valve body is the weight
    • Y10T137/7913—Guided head
    • Y10T137/7915—Guide stem

Definitions

  • This invention relates to improvements in, valves employed in connection with the blastpipe of a forge to afford an outlet for the forgegases upon a diminution or cessation of the blast-pressure.
  • Figure 1 is a view, partly in elevation and partly in section, of a pair of forges and a blast-pipe equipped with my improved valve.
  • Fig. 2 is an enlarged vertical sectional view of the valve and casing.
  • a A denote the forges.
  • B is the blast-pipe, connected at one end with the blast-fan, (not shown,) and C is a pipe branching from the blast-pipe and provided at its lower end with branches c c, leading to the forge -furnaces Obviously the blast-pipe may be extended, as shown, to supply other forges.
  • the blast-pipe is preferably above the forges, and the pipe C is preferably vertically arranged. In vertical alinement with the pipe C is an opening in the blast-pipe, around which is secured a valve- 4 casing D, open at its top.
  • the section E is a removable section of the valve-casing, having ⁇ at its top an inwardly-extending flange e, providing a restricted opening e.
  • the flange has an upward inclination and is slightly curved, as shown more clearly in Fig. 2.
  • the section E tits the upper end of the to its seat against gravity action by the blastpressure.
  • the air under pressure from the fan forces the valve upwardly against its seat thereb closiugtheo eninge, and asses by the pipe C to the forges.
  • the valve is held to its seat as long as the requisite airpressure is maintained but upon the cessation or a suftlcient diminution of the pressure the valve drops by its own weight and uncovers the opening e, providing an outlet for the gases and foul air generated in the forges and which pass through the pipe C.
  • valve and its parts are arranged entirely within the casing, and when the valve is seated the casing is air-tight. It desired, agasket h, of felt or the like, may be employed to provide a yielding seat for the valve.
  • a forge an air-blast pipe and a branch pipe depending trom the air-blast pipe and leading to the forge, an outlet in the blast-pipe opposite the branch pipe, a casing about the outlet having an opening, and a gravity-valve in the casing adapted to be moved by the air-blast to close the opening.

Description

No. 687,83I. v Patented Dec. 3, 190i.
' 4.L 0. CHARPENTIER.
BLAST PIPE SAFETY VALVE.
(Application filed Sept. 9, 1901.)
(No Model.)
FICE- l P11311" 114.111 ,il
Ilm
W/ T/VE SSE S .mi mums swans co., mmmuwo. WASHINGTON, n, c.
UNITED STATES PATENT OEETCE.
JOSEPH O. CHARPENTIER, OF CONCORD, NEW HAMPSHIRE.
BLAST-Pl PE SAFETY=VALVE.
SPECIFICATION forming part of Letters Patent No. 687,831, dated December 3, 1901. Application tiled September 9, 1901. Serial No. 74,756. (No model.)
To LZZ whom it may concern:
Beit known thatI, JOSEPH O. CHARPENTIER, a citizen of the United States, residing at Concord, in the county of Merrimack and State of New Hampshire, have invented certain new and useful Improvements in Blast-Pipe Safety-Valves; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.
This invention relates to improvements in, valves employed in connection with the blastpipe of a forge to afford an outlet for the forgegases upon a diminution or cessation of the blast-pressure.
The nature of the invention will be readily comprehended, reference being had to the following detailed description and to the accompanying drawings, in which;-
Figure 1 is a view, partly in elevation and partly in section, of a pair of forges and a blast-pipe equipped with my improved valve. Fig. 2 is an enlarged vertical sectional view of the valve and casing.
Referring to the drawings by letter, A A denote the forges.
B is the blast-pipe, connected at one end with the blast-fan, (not shown,) and C is a pipe branching from the blast-pipe and provided at its lower end with branches c c, leading to the forge -furnaces Obviously the blast-pipe may be extended, as shown, to supply other forges. The blast-pipe is preferably above the forges, and the pipe C is preferably vertically arranged. In vertical alinement with the pipe C is an opening in the blast-pipe, around which is secured a valve- 4 casing D, open at its top.
E is a removable section of the valve-casing, having` at its top an inwardly-extending flange e, providing a restricted opening e. The flange has an upward inclination and is slightly curved, as shown more clearly in Fig. 2. The section E tits the upper end of the to its seat against gravity action by the blastpressure.
In operation the air under pressure from the fan forces the valve upwardly against its seat thereb closiugtheo eninge, and asses by the pipe C to the forges. The valve is held to its seat as long as the requisite airpressure is maintained but upon the cessation or a suftlcient diminution of the pressure the valve drops by its own weight and uncovers the opening e, providing an outlet for the gases and foul air generated in the forges and which pass through the pipe C.
' The valve and its parts are arranged entirely within the casing, and when the valve is seated the casing is air-tight. It desired, agasket h, of felt or the like, may be employed to provide a yielding seat for the valve.
I claim as my inventionl. In combination with a forge an air-blast pipe and a branch pipe depending trom the air-blast pipe and leading to the forge, an outlet in the blast-pipe opposite the branch pipe, a casing about the outlet having an opening, and a gravity-valve in the casing adapted to be moved by the air-blast to close the opening.
2. In combination with a forge an air-blast pipe and a branch pipe depending from the air-blast pipe and leading to the forge, an outlet in the blast-pipe opposite the branch pipe, a @asin g about the outlet, a removable casingsection having at its top an inwardly-project ing flange providing a restricted opening, and a gravity-valve in the casing adapted to be moved by the air-blast to close the opening.
3. In combination with a forge an air-blast pipe and a branch pipe depending from the l and having a stem guided in the spiders, and air-blast pipe and leading to the forge, an outa gasket between the seat and Valve. Io let in the blast-pipe adjacent to the branch In testimony whereof I affix my signature pipe, a casing about the outlet, a easing-seeiu presence of two Witnesses.
tion removably secured to the easingand hav- JOSEPH O. CHARPENTIER.
ing at its top an inwardly-projecting curved Vtnesses:
flange providing a valve-seat, spiders Within GEO. YV. PRESCOTT,
the casing, a valve conforming to the flange FRED T. DUNLAP.
US1901074756 1901-09-09 1901-09-09 Blast-pipe safety-valve. Expired - Lifetime US687831A (en)

Priority Applications (1)

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US1901074756 US687831A (en) 1901-09-09 1901-09-09 Blast-pipe safety-valve.

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US1901074756 US687831A (en) 1901-09-09 1901-09-09 Blast-pipe safety-valve.

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