GB186671A - Improvements in rock-breaking machines - Google Patents

Improvements in rock-breaking machines

Info

Publication number
GB186671A
GB186671A GB1744321A GB1744321A GB186671A GB 186671 A GB186671 A GB 186671A GB 1744321 A GB1744321 A GB 1744321A GB 1744321 A GB1744321 A GB 1744321A GB 186671 A GB186671 A GB 186671A
Authority
GB
United Kingdom
Prior art keywords
plungers
liquid
rock
breaking
shank
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
GB1744321A
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.)
LIONEL WILLIAMS
Original Assignee
LIONEL WILLIAMS
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 LIONEL WILLIAMS filed Critical LIONEL WILLIAMS
Priority to GB1744321A priority Critical patent/GB186671A/en
Publication of GB186671A publication Critical patent/GB186671A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
    • E21C37/08—Devices with pistons, plungers, or the like, pressed locally against the wall of the borehole

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

186,671. Williams, L. June 27, 1921. Breaking-down appliances. - A breaking-down appliance for colliery or like work comprises a shank 1 with elongated recesses 3 containing plungers 2 and supplied with fluid through a channel 4 and ports 5, the plungers 2 and ports 5 to the left of the tool being greater than those to the right, and stop plates 8 limiting movement of the plungers. A casing 14 connected to the shank 1 comprises a liquid reservoir 15 and contains a plunger 20 which is reciprocated by a rock-shaft 29 to draw liquid through a passage 16 past a ball valve 25 and force the liquid past a ball valve 26 to operate the plungers. By opening a valve 34, the liquid may be returned to the reservoir.
GB1744321A 1921-06-27 1921-06-27 Improvements in rock-breaking machines Expired GB186671A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1744321A GB186671A (en) 1921-06-27 1921-06-27 Improvements in rock-breaking machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1744321A GB186671A (en) 1921-06-27 1921-06-27 Improvements in rock-breaking machines

Publications (1)

Publication Number Publication Date
GB186671A true GB186671A (en) 1922-09-27

Family

ID=10095274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1744321A Expired GB186671A (en) 1921-06-27 1921-06-27 Improvements in rock-breaking machines

Country Status (1)

Country Link
GB (1) GB186671A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686047A (en) * 1950-02-27 1954-08-10 Kenneth O Duncan Pressure exerting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686047A (en) * 1950-02-27 1954-08-10 Kenneth O Duncan Pressure exerting device

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