US959698A - Draw-off cock for boilers. - Google Patents

Draw-off cock for boilers. Download PDF

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Publication number
US959698A
US959698A US52374309A US1909523743A US959698A US 959698 A US959698 A US 959698A US 52374309 A US52374309 A US 52374309A US 1909523743 A US1909523743 A US 1909523743A US 959698 A US959698 A US 959698A
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United States
Prior art keywords
plug
valve
cock
draw
boilers
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Expired - Lifetime
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US52374309A
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William L Belknap
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Individual
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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
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
    • F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
    • F16K7/16—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being mechanically actuated, e.g. by screw-spindle or cam

Definitions

  • My invention relates to draw-ofi cooks for boilers, and particularly to that class of boilers connected with a hot water system for heating houses.
  • the object of my invention is to provide a cheap and efiicient stop to prevent accidentally withdrawing the valve plug entirely from its casing.
  • my invention consists in forming the valve stop an in tegral part of the casing and primarily located above the valve plug until the valve plug is seated, and is then bent down in the path of the plug to prevent the complete withdrawal of the plug from the casing.
  • Figure 1 represents a central sectional view of the casing or body of the cock showing the stop as an integral part of the body and primarily located at the entrance of the outlet port;
  • Fig. 2 is a plan View of the upper surface of the outlet of the casing looking in the direction of arrow at of Fig. l; and
  • Fig. 3 is a central sectional view of the cock body with the valve plug operatively mounted therein with the stop bent downward and with which the valve end of the plug contacts when raised from its seat.
  • the valve body A has the threaded inlet port end 1 adapted to be connected with a boiler (not shown) and the exteriorly threaded outlet port 2, adapted to connect with a hose (not shown) for conveying away the water, and the interiorly threaded portion 3 to receive the threaded portion at of the plug and the valve seat 5 for the valve end 6 of the plug.
  • the stop 7 When the body is cast, the stop 7 will lie in a horizontal position and at the entrance of the outlet port 2 as shown at Fig. 1. This initial position of the stop will leave a clear space below for the operation Specification of Letters Patent.
  • the construction shown comprises a body and valve plug only, and on account of its simplicity and cheapness is, with the exception of the stop feature, now in general use in connection with a hot water system for drawing off the boiler.
  • a hose ' is attached to the outlet of the cock and the plug turned back to unseat the valve.
  • the discharge end of the hose is generally located in a sink or other like place out of sight of the operator, there is no means of determining when the valve is fully opened, and, conse quently, the plug is frequently entirely withdrawn, or so nearly so that the action of the water will soon force it out and flood the cellar.
  • a draw off valve cock comprising a body having inlet and outlet ports and a valve seat and an adjustable valve plug for the seat, and a member integral with the body and positioned to serve as an outer stop for said plug, the member having been sopositioned after the insertion of the plug.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)
  • Lift Valve (AREA)

Description

W. L. BELKNAP.
DRAW-OFF 000K FOR BOILERS.
APPLICATION FILED OCT. 21, 1909. 5 6.,
Patented May 31, 1910.
WITNESSES WILLIAM L. BELKNAP, OF BRIDGEPORT, CONNECTICUT.
DRAW-OFF COCK FOR BOILERS.
To all whom it may concern:
Be it known that I, TIL-LIAM L. BEL- KNAP, a citizen of the United States, and a resident of Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Draw-Off Cocks for Boilers, of which the following is a specification.
My invention relates to draw-ofi cooks for boilers, and particularly to that class of boilers connected with a hot water system for heating houses.
The object of my invention is to provide a cheap and efiicient stop to prevent accidentally withdrawing the valve plug entirely from its casing.
With this object in view, my invention consists in forming the valve stop an in tegral part of the casing and primarily located above the valve plug until the valve plug is seated, and is then bent down in the path of the plug to prevent the complete withdrawal of the plug from the casing.
Referring to the drawings, Figure 1 represents a central sectional view of the casing or body of the cock showing the stop as an integral part of the body and primarily located at the entrance of the outlet port; Fig. 2 is a plan View of the upper surface of the outlet of the casing looking in the direction of arrow at of Fig. l; and Fig. 3 is a central sectional view of the cock body with the valve plug operatively mounted therein with the stop bent downward and with which the valve end of the plug contacts when raised from its seat.
The valve body A has the threaded inlet port end 1 adapted to be connected with a boiler (not shown) and the exteriorly threaded outlet port 2, adapted to connect with a hose (not shown) for conveying away the water, and the interiorly threaded portion 3 to receive the threaded portion at of the plug and the valve seat 5 for the valve end 6 of the plug.
When the body is cast, the stop 7 will lie in a horizontal position and at the entrance of the outlet port 2 as shown at Fig. 1. This initial position of the stop will leave a clear space below for the operation Specification of Letters Patent.
Application filed October 21, 1909.
Patented May 31, 1910.
Serial No. 523,743.
of the necessary tools required for finishing the interior of the body, viz: forming the threaded part 3 and the valve seat 5. The plug is then inserted and the stop driven down far enough to contact with the valve end of the plug when such end has been removed far enough from its seat to give sufficient opening for the escape of water as shown atFig. 2.
- The construction shown comprises a body and valve plug only, and on account of its simplicity and cheapness is, with the exception of the stop feature, now in general use in connection with a hot water system for drawing off the boiler. In drawing olf a boiler, a hose 'is attached to the outlet of the cock and the plug turned back to unseat the valve. As the discharge end of the hose is generally located in a sink or other like place out of sight of the operator, there is no means of determining when the valve is fully opened, and, conse quently, the plug is frequently entirely withdrawn, or so nearly so that the action of the water will soon force it out and flood the cellar. To provide a suitable stop for the valve without adding materially to the cost of so cheap an article as the ordinary drawolf cock, has heretofore been a difficult matter to accomplish. The stop as above shown and described adds nothing to the cost of construction, is out of sight and thoroughly effective for draw-off cocks of all descriptions.
Having thus described my invention, what I claim is A draw off valve cock comprising a body having inlet and outlet ports and a valve seat and an adjustable valve plug for the seat, and a member integral with the body and positioned to serve as an outer stop for said plug, the member having been sopositioned after the insertion of the plug.
Signed at Bridgeport in the county of Fairfield and State of Connecticut this 20th day of Oct. A. D. 1909.
WILLIAM L. BELKNAP.
Witnesses:
H. A. LAMB, GEO. D. PHILLIPS.
US52374309A 1909-10-21 1909-10-21 Draw-off cock for boilers. Expired - Lifetime US959698A (en)

Priority Applications (1)

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US52374309A US959698A (en) 1909-10-21 1909-10-21 Draw-off cock for boilers.

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US52374309A US959698A (en) 1909-10-21 1909-10-21 Draw-off cock for boilers.

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US959698A true US959698A (en) 1910-05-31

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US52374309A Expired - Lifetime US959698A (en) 1909-10-21 1909-10-21 Draw-off cock for boilers.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678846A (en) * 1950-04-26 1954-05-18 Engine Parts Mfg Company Aerosol paint valve and nozzle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678846A (en) * 1950-04-26 1954-05-18 Engine Parts Mfg Company Aerosol paint valve and nozzle

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