GB1324310A - Stone or rock splitting tools - Google Patents

Stone or rock splitting tools

Info

Publication number
GB1324310A
GB1324310A GB2599572A GB2599572A GB1324310A GB 1324310 A GB1324310 A GB 1324310A GB 2599572 A GB2599572 A GB 2599572A GB 2599572 A GB2599572 A GB 2599572A GB 1324310 A GB1324310 A GB 1324310A
Authority
GB
United Kingdom
Prior art keywords
wedge
inserts
facings
rock
rod
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
GB2599572A
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
Publication of GB1324310A publication Critical patent/GB1324310A/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
    • E21C37/10—Devices with expanding elastic casings
    • 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
    • E21C37/02—Other methods or devices for dislodging with or without loading by wedges

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

1324310 Splitting H DARDA 2 June 1972 [14 June 1971] 25995/72 Heading B5E [Also in Division El] A stone or rock splitting tool comprises a cylinder block 10 containing an hydraulically operated piston 11 connected by its rod 14 to a pull wedge 13 slidably engaging and acting upon laterally movable inserts 12 which are insertable into drilled holes and internally tapered to match the angle of inclination of the pull wedge, the contacting sliding surfaces of the inserts and of the pull wedge or of the pull wedge only consisting of abrasion-resistant robust facings. The inserts are connected to the cylinder 10, and the wedge 13 is combined with the piston-rod. In one embodiment, the facings 12a, 13a, are provided on the sliding surfaces of both the wedge and inserts and consist of hard metal or carbide. In another embodiment, the facings are provided only in the sliding surfaces of the wedge and the inserts 12 are in the form of flexible rods or plate which, after an initial splitting of the rock, are bulged out by a stop 15a on a rod 15 secured to the wedge to force the split rock further apart.
GB2599572A 1971-06-14 1972-06-02 Stone or rock splitting tools Expired GB1324310A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712129444 DE2129444A1 (en) 1971-06-14 1971-06-14 Device for mechanical breaking down of rock or the like.

Publications (1)

Publication Number Publication Date
GB1324310A true GB1324310A (en) 1973-07-25

Family

ID=5810730

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2599572A Expired GB1324310A (en) 1971-06-14 1972-06-02 Stone or rock splitting tools

Country Status (4)

Country Link
DE (1) DE2129444A1 (en)
FR (1) FR2141920A1 (en)
GB (1) GB1324310A (en)
ZA (1) ZA723861B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176169A (en) * 1985-06-05 1986-12-17 Sri Parakrama Wije Ilukkumbure Jack bolt
CN104948188A (en) * 2015-07-06 2015-09-30 北京旭日汇安矿山工程技术有限公司 Overload protection device for stone cracking equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI64438C (en) * 1981-06-04 1983-11-10 Tampella Oy Ab FOERFARANDE FOER SPJAELKNING AV STEN

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176169A (en) * 1985-06-05 1986-12-17 Sri Parakrama Wije Ilukkumbure Jack bolt
CN104948188A (en) * 2015-07-06 2015-09-30 北京旭日汇安矿山工程技术有限公司 Overload protection device for stone cracking equipment
CN104948188B (en) * 2015-07-06 2017-03-22 北京旭日汇安矿山工程技术有限公司 Overload protection device for stone cracking equipment

Also Published As

Publication number Publication date
FR2141920A1 (en) 1973-01-26
DE2129444A1 (en) 1972-12-21
ZA723861B (en) 1973-03-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee