GB190117232A - Improvements in Devices for Removing Scale from Valves and their Seats. - Google Patents

Improvements in Devices for Removing Scale from Valves and their Seats.

Info

Publication number
GB190117232A
GB190117232A GB190117232DA GB190117232A GB 190117232 A GB190117232 A GB 190117232A GB 190117232D A GB190117232D A GB 190117232DA GB 190117232 A GB190117232 A GB 190117232A
Authority
GB
United Kingdom
Prior art keywords
valve
seat
screw
tube
scale
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
Emmons Edward Welling Crossley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB190117232A publication Critical patent/GB190117232A/en
Expired legal-status Critical Current

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Landscapes

  • Check Valves (AREA)
  • Details Of Valves (AREA)

Abstract

17,232. Crossley, E. E. W. Feb. 2, [date applied for under Sec. 103 of Patents &c. Act, A.D. 1883]. Incrustation, removing; check valves.-The scale which accumulates about the check valve and its seat of a boilerwater feed device, is removed by lifting the valve 4 from its seat and allowing water and steam to rush past it into the inlet passage 8 and out through a valve at the side. The valve 4 is raised by a screw-threaded rod 16 engaging the bifurcated head 13 of a tube 12 and operated by a hand-wheel 17. The tube 12 has an operating arm 15, a screw-threaded part to engage the screw-threaded part 11 of the tubular part 7, and forks to enter between the wings 5 of the check valve to enable it to be turned in contact with its seat so as to remove attached scale.
GB190117232D 1901-02-02 1901-08-28 Improvements in Devices for Removing Scale from Valves and their Seats. Expired GB190117232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US190117232XA 1901-02-02 1901-02-02

Publications (1)

Publication Number Publication Date
GB190117232A true GB190117232A (en) 1902-01-02

Family

ID=32470090

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190117232D Expired GB190117232A (en) 1901-02-02 1901-08-28 Improvements in Devices for Removing Scale from Valves and their Seats.

Country Status (1)

Country Link
GB (1) GB190117232A (en)

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