US156987A - Improvement in water-cocks - Google Patents

Improvement in water-cocks Download PDF

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US156987A
US156987A US156987DA US156987A US 156987 A US156987 A US 156987A US 156987D A US156987D A US 156987DA US 156987 A US156987 A US 156987A
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water
valve
cocks
improvement
pressure
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • F15B13/0857—Electrical connecting means, e.g. plugs, sockets
    • 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
    • Y10T137/8376—Combined

Definitions

  • the invention consists of a novel construction of the same by forming an airchamber in the body of the cock below the valve, in such a position as to cushion the water-column, and avoid all pounding of the valve on the valve-seat when the valve is closed by the pressure ofthe water.
  • A represents the air-chamber, whose mouth or opening is at a.
  • - B is the rubber ball-valve, closing against the valve-seat b.
  • the mouth a dips into the chamber A, so as to form an inverted vessel, from which the 'air cannot escape when the month a is occupied and closed by the water from the service-pipe; andwhen the flow of water through the cook is arrested by the closing of the valve B, the elasticity of the air confined in said chamber will cushion the watercolumn, and prevent the effect known as water-hammer.

Description

A. D. DAVIS y Water-Cocks I a vK6.
Patented`Nlov.17,1874.
me annum comubrmnnusam PARK momma f UNITED STATES PATENT OFFICE ALBERT D. DAVIS, OF CHICAGO, ILLINOIS.
IMPROVEMENT IN'WATER-COCKS.
l Specification forming part of Letters Patent No. 156,987, dated November 17, 1674; application filed March 14, 1874.
To all whom it may concern:
Be it known that I, ALBERI` D. DAVIS, of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Water-Cocks; and I do declare that the following is a true and accurate description thereof, reference being had to the accompanying drawing, and to the letters of reference marked thereon, and being a part of this specification, which shows a vertical section ofthe water-cock.
'Ihe nature of this invention relates to an improvement in that class ot' cocks whose valves are held closed by the pressure of the water in the service-pipe.
The invention consists of a novel construction of the same by forming an airchamber in the body of the cock below the valve, in such a position as to cushion the water-column, and avoid all pounding of the valve on the valve-seat when the valve is closed by the pressure ofthe water.
In the drawing', A represents the air-chamber, whose mouth or opening is at a.- B is the rubber ball-valve, closing against the valve-seat b. The mouth a dips into the chamber A, so as to form an inverted vessel, from which the 'air cannot escape when the month a is occupied and closed by the water from the service-pipe; andwhen the flow of water through the cook is arrested by the closing of the valve B, the elasticity of the air confined in said chamber will cushion the watercolumn, and prevent the effect known as water-hammer.
Heretofore manufacturers have been unable to make a durable water-cock whose valve closes with the pressure, for the reason that the water, when turned on full force and suddenly checked, produces a heavy thump, varying according to the pressure of water. This thumping not only injures the cock itself, by speedily wearing out the valve, but also the plumbing throughout the building ismore or less shattered by the continual pounding produced by the water-pressure.
By the simple and inexpensive use of an air-chamber attached to the shell of the Watercock below the valve, to form a cushion for the water to ram against, this objection is entirely avoided.
Having fully described the essential points of this invention, what I claim is- A Water-cock constructed with an air-chamber, A, situated below the valve-seat, and within the shell thereof, substantially as set forth, in combination with a seat, b, and valve l B, arranged as set forth, to open against the water-pressure.
A. D. DAVIS.
Witnesses:
J. BEEVER, A I. B.W1G1IT.
US156987D Improvement in water-cocks Expired - Lifetime US156987A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001025730A1 (en) 1999-10-01 2001-04-12 Technical Concepts, L.P. System and method for dispensing soap
US20040260900A1 (en) * 2003-06-19 2004-12-23 Burton David Alan Systems and methods of data migration in snapshot operations
US20080172537A1 (en) * 2003-09-17 2008-07-17 Hitachi, Ltd. Remote storage disk control device and method for controlling the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001025730A1 (en) 1999-10-01 2001-04-12 Technical Concepts, L.P. System and method for dispensing soap
US20040260900A1 (en) * 2003-06-19 2004-12-23 Burton David Alan Systems and methods of data migration in snapshot operations
US20080172537A1 (en) * 2003-09-17 2008-07-17 Hitachi, Ltd. Remote storage disk control device and method for controlling the same

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