US454234A - Gas-cock - Google Patents

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Publication number
US454234A
US454234A US454234DA US454234A US 454234 A US454234 A US 454234A US 454234D A US454234D A US 454234DA US 454234 A US454234 A US 454234A
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Prior art keywords
plug
head
cock
gas
shell
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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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
    • F16K5/025—Particular coverings or materials

Definitions

  • This invention relates to an improved cock for gas-fixtures.
  • the object of the invention is to provide improved means to keep the plug or key in position and to dispense with the ordinary washer and screw.
  • FIG. l is a view of the arm of a gas-fixture in which the improved cock is shown in section.
  • Fig. 2 is a plan view of the shell of the cock.
  • Fig. 3 shows two views of the spring.
  • the letter A designates the shell of the cock, which has the usual conical bore 6 for the plug 0.
  • the shell has at that side where the small end of the bore is a recess or internal shoulder cl, which is simply an enlarged or turned out end of the bore.
  • the tapered plug as usual, fits the conical bore, and at its small end has a projecting integral head e, formed by a tapering reduction f in the side of the plug, beginning where the latter enters the recess d.
  • a volute spring 9 surrounds the reduced tapering end fof the plug and occupies the recess d of the shell.
  • the large end of the spring 9 is thus seated on the shoulder of the said recess and the small end bears under the plug-head c. It will thus be seen that the spring 9 draws the tapered plug and keeps it tight in the conical bore. It will be observed that the head 6 has a diameter less than that of the bore 1) at its small end, and hence the plug can be easily introduced through the said bore, inserting the said head 6 first. When the plug seats in the conical bore, this head projects beyond the shell of the cock and the volute spring 9 can be easily slipped over it and around the reduced tapering end f of the plug to occupy the position previously explained. the spring projects straight, laterally, or at a tangent, so that when under the plug-head c it will be inconvenient position to facilitate the removal of the spring whenever it may be desired to take the plug out.
  • the improvement is applicable to gasbrackets or any other style of gas-fixture.
  • a cock for gas-fixtures comprising a shell having a conical bore, a tapered plug having at its small end an integral head, and a spring seated on the said shell and bearing under the plug-head, whereby the use of a screw is obviated.
  • a cock for gas-fixtures comprising a shell having a conical bore and a recess or internal shoulder at the side where the small end of the bore is, a tapered plug having at its small end an integral head, and a spring seated in the said recess and bearing under the plug-head, as set forth.
  • a cock for gas-fixtures comprising a The terminus g at the small end 0f.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Description

(No Model.)
P. S. STAFFORD & A. M. HUDSON.
GAS 000K.
No. 454,234. Patented June 16,1891.
lllllilll WITNESSES: I v INVENTORSI I H. 44 Ji a W, W a 5 BY 4% ATTORNEY.
UNITED STATES PATENT OFFICE.
MARYLAND.
GAS-COCK.
SPECIFICATION forming part of Letters Patent No. 454,234, dated June 16, 1891.
Application filed September 13, 1890. Serial No. 364,831. (No model.)
To all whom it may concern:
Be it known that we, FREDERIcK S. STAF- FORD and ALEXANDER M. HUDsoN, citizens of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Gas Fixture Cocks, of which the following is a specification.
This invention relates to an improved cock for gas-fixtures.
The object of the invention is to provide improved means to keep the plug or key in position and to dispense with the ordinary washer and screw.
The invention is shown in the accompanying drawings, in which- Figure l is a view of the arm of a gas-fixture in which the improved cock is shown in section. Fig. 2 is a plan view of the shell of the cock. Fig. 3 shows two views of the spring.
The letter A designates the shell of the cock, which has the usual conical bore 6 for the plug 0. The shell has at that side where the small end of the bore is a recess or internal shoulder cl, which is simply an enlarged or turned out end of the bore. The tapered plug 0, as usual, fits the conical bore, and at its small end has a projecting integral head e, formed by a tapering reduction f in the side of the plug, beginning where the latter enters the recess d. When the plug is in position, the reduced tapering end f will project beyond the bore and be coincident with the recess cl at the side of the shell. A volute spring 9 surrounds the reduced tapering end fof the plug and occupies the recess d of the shell. The large end of the spring 9 is thus seated on the shoulder of the said recess and the small end bears under the plug-head c. It will thus be seen that the spring 9 draws the tapered plug and keeps it tight in the conical bore. It will be observed that the head 6 has a diameter less than that of the bore 1) at its small end, and hence the plug can be easily introduced through the said bore, inserting the said head 6 first. When the plug seats in the conical bore, this head projects beyond the shell of the cock and the volute spring 9 can be easily slipped over it and around the reduced tapering end f of the plug to occupy the position previously explained. the spring projects straight, laterally, or at a tangent, so that when under the plug-head c it will be inconvenient position to facilitate the removal of the spring whenever it may be desired to take the plug out.
In the cocks heretofore in use it has been necessary to provide a separate head or cap, which is screwed to the end of the plug after the latter has been fitted to the shell. By forming the head and plug in one piece the number of parts are greatly reduced, which is obviously an advantage, because it both cheapens the production and facilitates the application of the article. Moreover, in those devices where the head is screwed to the plug the turning of the latter oftentimes causes the loosening of the screw, and consequently a relaxation of the spring, which Would then cease to hold the plug snugly to its seat. It will be obvious that this objection is overcome by our arrangement, where the head is integral with the plug and no screw is employed.
The device will admit of slight changes in construction, and the invention therefore is not limited to the precise construction shown.
The improvement is applicable to gasbrackets or any other style of gas-fixture.
Having desrcibed ourinvention, we claim 1. A cock for gas-fixtures, comprising a shell having a conical bore, a tapered plug having at its small end an integral head, and a spring seated on the said shell and bearing under the plug-head, whereby the use of a screw is obviated.
2. A cock for gas-fixtures, comprising a shell having a conical bore and a recess or internal shoulder at the side where the small end of the bore is, a tapered plug having at its small end an integral head, and a spring seated in the said recess and bearing under the plug-head, as set forth.
A cock for gas-fixtures, comprising a The terminus g at the small end 0f.
shell having a conical bore, a tapered plug Intestimony whereof we aflixoursiguatures having at its small end an integral head in the presence of two witnesses.
formed by a tapering reduction in the plug, FREDERICK S. STAFFORD.
and a spring fitting the reduced portion of ALEXANDER M. HUDSON. 5 said plug and seated on the said shell and Witnesses:
bearing under the plug-head, substantially A. 0.13ABENDREIER,
as set forth. J NO. T. MADDOX.
US454234D Gas-cock Expired - Lifetime US454234A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2669418A (en) * 1948-07-28 1954-02-16 Brumbaugh Issac Vernon Valve
US3269696A (en) * 1964-05-08 1966-08-30 Kontes Glass Co Stopcock and plug retainer therefor
US3985152A (en) * 1975-05-19 1976-10-12 Thomas Albanese Under fixture valve
US20060275757A1 (en) * 2002-06-28 2006-12-07 Lee Gil U Magnetic nanomaterials and methods for detection of biological materials

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2669418A (en) * 1948-07-28 1954-02-16 Brumbaugh Issac Vernon Valve
US3269696A (en) * 1964-05-08 1966-08-30 Kontes Glass Co Stopcock and plug retainer therefor
US3985152A (en) * 1975-05-19 1976-10-12 Thomas Albanese Under fixture valve
US20060275757A1 (en) * 2002-06-28 2006-12-07 Lee Gil U Magnetic nanomaterials and methods for detection of biological materials

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