GB417344A - Improvements in or relating to pumps for filter presses and the like - Google Patents

Improvements in or relating to pumps for filter presses and the like

Info

Publication number
GB417344A
GB417344A GB1317733A GB1317733A GB417344A GB 417344 A GB417344 A GB 417344A GB 1317733 A GB1317733 A GB 1317733A GB 1317733 A GB1317733 A GB 1317733A GB 417344 A GB417344 A GB 417344A
Authority
GB
United Kingdom
Prior art keywords
piston
main
valve
stroke
cylinder
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
GB1317733A
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.)
HENRY HERBERT DAVIS
S H Johnson & Co Ltd
Original Assignee
HENRY HERBERT DAVIS
S H Johnson & Co Ltd
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 HENRY HERBERT DAVIS, S H Johnson & Co Ltd filed Critical HENRY HERBERT DAVIS
Priority to GB1317733A priority Critical patent/GB417344A/en
Publication of GB417344A publication Critical patent/GB417344A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/02—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
    • F01L25/04—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine
    • F01L25/06—Arrangements with main and auxiliary valves, at least one of them being fluid-driven
    • F01L25/063—Arrangements with main and auxiliary valves, at least one of them being fluid-driven the auxiliary valve being actuated by the working motor-piston or piston-rod
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
    • F01B11/007—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type in which the movement in only one direction is obtained by a single acting piston motor, e.g. with actuation in the other direction by spring means
    • F01B11/008—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type in which the movement in only one direction is obtained by a single acting piston motor, e.g. with actuation in the other direction by spring means with actuation in the other direction by gravity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

417,344. Steam pumps. DAVIS, H. H., 2, Woodstock Gardens, Goodmayes, Essex, and JOHNSON & CO., Ltd., S. H., Carpenters Road, Stratford, London. May 5, 1933, No. 13177. [Classes 122 (ii) and 122 (iii).] In a pump of the kind described in Specification 398,684, [Group XXVIII], the main valve 15 is controlled by a combined fluid actuated and mechanical valve gear, and cushioning of the piston 5 at the ends of the stroke is effected, on the up-stroke, by air supplied through ports 4 situated at a distance from the top of the cylinder and, on the down-stroke, by exhaust steam cushioned by the main piston overrunning separate exhaust ports 3 spaced from the cylinder ends. The piston-rod 6 lifts the weight, and through tappets actuates an auxiliary slide valve arranged by the side of the main valve. The main valve 15 controls separate admission and exhaust ports 2, 3 at the bottom of the main cylinder, and the auxiliary slide valve controls separate admission and exhaust passages leading to the ends of the auxiliary cylinders housing the heads of the piston 14 which actuates the main valve. The piston 14 overruns the separate auxiliary exhaust ports and effects the cushioning of the main valvo.
GB1317733A 1933-05-05 1933-05-05 Improvements in or relating to pumps for filter presses and the like Expired GB417344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1317733A GB417344A (en) 1933-05-05 1933-05-05 Improvements in or relating to pumps for filter presses and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1317733A GB417344A (en) 1933-05-05 1933-05-05 Improvements in or relating to pumps for filter presses and the like

Publications (1)

Publication Number Publication Date
GB417344A true GB417344A (en) 1934-10-03

Family

ID=10018245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1317733A Expired GB417344A (en) 1933-05-05 1933-05-05 Improvements in or relating to pumps for filter presses and the like

Country Status (1)

Country Link
GB (1) GB417344A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962768C (en) * 1954-03-09 1957-04-25 Pleiger Maschf Paul Piston pump driven by compressed air

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962768C (en) * 1954-03-09 1957-04-25 Pleiger Maschf Paul Piston pump driven by compressed air

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