US567092A - Inlet-valve for air-compressors - Google Patents

Inlet-valve for air-compressors Download PDF

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Publication number
US567092A
US567092A US567092DA US567092A US 567092 A US567092 A US 567092A US 567092D A US567092D A US 567092DA US 567092 A US567092 A US 567092A
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Prior art keywords
valve
inlet
casing
air
rod
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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
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F16K15/065—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring spring pulling the closure member against the seat
    • 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
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • 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
    • Y10T137/7931—Spring in inlet

Definitions

  • My invention relates to inlet-valves for aircompressors, and has for its object to produce a valve of few parts and great efficiency.
  • my invention consists of an inlet-valve constructed substantially as shown and described, and particularly defined in the claims.
  • Figure 1 is a central sectional view of the entire valve.
  • Fig. 2 is a sectional plan of the lower half of the valve, looking down into it.
  • Figs. 3 and 4 are detail views of the valve itself.
  • A is the valve, which is preferably made of aluminium and is constructed in the form of a hollow cylindrical shell having an opening in its upper portion to admit the rod 0.
  • the upper portion of the sides is cut away, leav- 2 5 ing two large openings for admission of air to the interior of the valve.
  • Four small openings 5 near the seat of the valve permit the inlet of the air from the valve into the cylinder.
  • B is the casing, preferably made of bronze or gun-metal, andis bored smooth and true inside in its lower portion, so that the aluminium valve will Work smoothly and easily therein.
  • the lower portion of the casing is 3 5 threaded at e e and turned at i i to enable it to be properly secured in place.
  • the top of the casing is provided with a threaded opening to receive a threaded rod O.
  • This rod extends down into the center of 40 the casing and through the opening in the top of the valve.
  • the lower end of this -rod is provided with a head having a groove upon its upper flange in which is seated one end of awire spring D, which is coiled around the rod and extends upward to the top of the valve, where it is seated in a groove encircling the opening through which the rod extends.
  • a jam-nut E is threaded on the outer extremity of the rod and bears upon the upper surface of the casing.
  • the rod is provided with a squared end to permit its being turned by a wrench, so as to adjust the tension of the spring. 7
  • the casing B is preferably cut away at its upper portion, so as toform the arms I), leading down to the threaded portion'e c.
  • Sock-' ets 0 are provided in the rim of the casing, which are adapted to receive a wrench to seat the casin g.
  • the valve should be carefully turned and finished to snugly fit the sleeve and seat of the casing.
  • valve A By my construction an inlet-valve is produced having only two moving parts, the valve A and the spring D.
  • the valve A in the form'of a hollow cylindrical shell, which closely fits the interior of the casing for more than half its length, all binding and sticking are avoided, as is common to the ordinary valve provided with a long valvestem.
  • the valve By reason of its cylindrical form the valve is free to rotate around the rod O in operation, thus always maintaining a true seat.
  • the simple arrangement of the threaded rod 0 permits the tension of the spring upon the valve to be easily and speedily regulated while the valve is working, andan entire set of valves can thus be brought to an equal working tension while the compressor is in operation.
  • valve By locating the spring as shown and described the valve is perfectly balanced, thus preventing the dropping down of the valve, which is a common defect in the ordinary modes of construction. While in its normal or closed position the spring offers very slight resistance, and this, together with the extreme lightness of the valve by reason of its form and material, renders it very easy to move, offering only about one-third the resistance of ordinary valves.
  • a valve thus constructed has been found by actual experi- 9o ment to be especially efficient as an inletvalve for air-compressors.
  • An inlet-valve for air-eo1npressors consisting of a casing B having its lower portion bored so as to truly guide and seat the valve, a rod 0 secured to the upper portion of the casing and extended downwardly therein, a hollow cylindrical valve A working in said casing and around the said rod, and a spring D carried by said rod and bearing against the upper and inner face of the valve, substan tially as and for the purpose described.
  • An inlet-valve for air-compressors consisting of a casing B having its lower portion constructed to guide and seat an aluminium valve, a rod adj ustably threaded in the upper

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compressor (AREA)
  • Check Valves (AREA)

Description

(No Model.)
R. P; GRIGSBY. INLET VALVE FOR AIR commnssoas.
No. 567,092. Patented Sept. 1, 1896.
firzea 's e Zzvenz' 2056;; 707 65 MM. (B W,
Rs :0. morauruq, WASNINGTDN u c UNITE STATES ATENT FFICEQ ROBERT F. GRIGSBY, OF CALISTOGA, OALIFORNIA, ASSIGNOR OF ONE-HALF TO THE FULTON ENGINEERING AND SHIP BUILDING VORKS, OF SAN FRANCISCO, CALIFORNIA.
iNLET-VALVE FOR AlR-COMPRESSORS.
SPECIFICATION forming part of Letters Patent No. 567,092, dated September 1, 1896. Application filed Oct ber 2, 1895. Serial No, 564,465. (No model.)
To all whom it may concern:
Be it known that I, ROBERT F. GRIGSBY, a citizen of the United States, residing at Oalistoga, Napa county, California, have invented a new and useful Inlet-Valve for Air-Oompressors, of which the following'isa specification.
My invention relates to inlet-valves for aircompressors, and has for its object to produce a valve of few parts and great efficiency.
To this end my invention consists of an inlet-valve constructed substantially as shown and described, and particularly defined in the claims.
1 5 In the drawings, Figure 1 is a central sectional view of the entire valve. Fig. 2 is a sectional plan of the lower half of the valve, looking down into it. Figs. 3 and 4 are detail views of the valve itself.
A is the valve, which is preferably made of aluminium and is constructed in the form of a hollow cylindrical shell having an opening in its upper portion to admit the rod 0. The upper portion of the sides is cut away, leav- 2 5 ing two large openings for admission of air to the interior of the valve. Four small openings 5 near the seat of the valve permit the inlet of the air from the valve into the cylinder.
B is the casing, preferably made of bronze or gun-metal, andis bored smooth and true inside in its lower portion, so that the aluminium valve will Work smoothly and easily therein. The lower portion of the casing is 3 5 threaded at e e and turned at i i to enable it to be properly secured in place.
The top of the casing is provided with a threaded opening to receive a threaded rod O. This rod extends down into the center of 40 the casing and through the opening in the top of the valve. The lower end of this -rod is provided with a head having a groove upon its upper flange in which is seated one end of awire spring D, which is coiled around the rod and extends upward to the top of the valve, where it is seated in a groove encircling the opening through which the rod extends.
A jam-nut E is threaded on the outer extremity of the rod and bears upon the upper surface of the casing. The rod is provided with a squared end to permit its being turned by a wrench, so as to adjust the tension of the spring. 7
The casing B is preferably cut away at its upper portion, so as toform the arms I), leading down to the threaded portion'e c. Sock-' ets 0 are provided in the rim of the casing, which are adapted to receive a wrench to seat the casin g. The valve should be carefully turned and finished to snugly fit the sleeve and seat of the casing.
By my construction an inlet-valve is produced having only two moving parts, the valve A and the spring D. By making the valve A in the form'of a hollow cylindrical shell, which closely fits the interior of the casing for more than half its length, all binding and sticking are avoided, as is common to the ordinary valve provided with a long valvestem. By reason of its cylindrical form the valve is free to rotate around the rod O in operation, thus always maintaining a true seat. The simple arrangement of the threaded rod 0 permits the tension of the spring upon the valve to be easily and speedily regulated while the valve is working, andan entire set of valves can thus be brought to an equal working tension while the compressor is in operation. By locating the spring as shown and described the valve is perfectly balanced, thus preventing the dropping down of the valve, which is a common defect in the ordinary modes of construction. While in its normal or closed position the spring offers very slight resistance, and this, together with the extreme lightness of the valve by reason of its form and material, renders it very easy to move, offering only about one-third the resistance of ordinary valves. A valve thus constructed has been found by actual experi- 9o ment to be especially efficient as an inletvalve for air-compressors.
What I claim is- 1. An inlet-valve for air-compressors consisting of a casing B having its lower portion 5 bored smooth and true, a cylindrical valve A closely fitted in the said lower portion of said casing and a tension-regulating device substantially as described extended into said casing and into said valve, the construction and 10 arrangement being such that the valve is free to rotate in its casing. v
2. An inlet-valve for air-eo1npressors consisting of a casing B having its lower portion bored so as to truly guide and seat the valve, a rod 0 secured to the upper portion of the casing and extended downwardly therein, a hollow cylindrical valve A working in said casing and around the said rod, and a spring D carried by said rod and bearing against the upper and inner face of the valve, substan tially as and for the purpose described.
3. An inlet-valve for air-compressors consisting of a casing B having its lower portion constructed to guide and seat an aluminium valve, a rod adj ustably threaded in the upper
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