GB1065361A - Improvements in or relating to hydraulic apparatus for breaking down rocky and like materials - Google Patents

Improvements in or relating to hydraulic apparatus for breaking down rocky and like materials

Info

Publication number
GB1065361A
GB1065361A GB178865A GB178865A GB1065361A GB 1065361 A GB1065361 A GB 1065361A GB 178865 A GB178865 A GB 178865A GB 178865 A GB178865 A GB 178865A GB 1065361 A GB1065361 A GB 1065361A
Authority
GB
United Kingdom
Prior art keywords
rocky
relating
materials
breaking down
mandrel
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
GB178865A
Inventor
Kenneth Cooper
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.)
Gullick Ltd
Original Assignee
Gullick 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 Gullick Ltd filed Critical Gullick Ltd
Priority to GB178865A priority Critical patent/GB1065361A/en
Publication of GB1065361A publication Critical patent/GB1065361A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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

Abstract

1,065,361. Mining apparatus. GULLICK Ltd. Dec. 16, 1965 [Jan. 15, 1965], No. 1788/65. Heading E1F. The mandrel of a burster for breaking rock by the expansion of the mandrel after it has been inserted in a drill hole or like opening in the rock has at least two parts which are in contact through inclined surfaces so that when_the parts are caused to move relatively to one another by a hydraulically actuated ram the parts will expand or contract laterally of the mandrel.
GB178865A 1965-01-15 1965-01-15 Improvements in or relating to hydraulic apparatus for breaking down rocky and like materials Expired GB1065361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB178865A GB1065361A (en) 1965-01-15 1965-01-15 Improvements in or relating to hydraulic apparatus for breaking down rocky and like materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB178865A GB1065361A (en) 1965-01-15 1965-01-15 Improvements in or relating to hydraulic apparatus for breaking down rocky and like materials

Publications (1)

Publication Number Publication Date
GB1065361A true GB1065361A (en) 1967-04-12

Family

ID=9728009

Family Applications (1)

Application Number Title Priority Date Filing Date
GB178865A Expired GB1065361A (en) 1965-01-15 1965-01-15 Improvements in or relating to hydraulic apparatus for breaking down rocky and like materials

Country Status (1)

Country Link
GB (1) GB1065361A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004024332A1 (en) * 2002-09-10 2004-03-25 Hirado Kinzoku Kogyo Co., Ltd. Crushing structure of crusher

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004024332A1 (en) * 2002-09-10 2004-03-25 Hirado Kinzoku Kogyo Co., Ltd. Crushing structure of crusher
US7188910B2 (en) 2002-09-10 2007-03-13 Hirado Kinzoku Kogyo Co., Ltd. Crushing structure of crusher

Similar Documents

Publication Publication Date Title
GB1534663A (en) Method and device for breaking a hard compact material
GB1365383A (en) Wall tubing anchor and catcher
AU3308971A (en) A rock drill feed bar
GB1071418A (en) Improvements in rock-drilling tools
GB1209246A (en) Improvements in or relating to processes and apparatus for the construction of tunnels or the like in rock having zones differing in stability
GB1065361A (en) Improvements in or relating to hydraulic apparatus for breaking down rocky and like materials
GB1433556A (en) Step auger and rock bit combination
GB1105107A (en) Hydraulically operated apparatus for the mechanical splitting of rocks by means of inserts which are pushed apart by a wedge
GB1081510A (en) Well drilling method
GB1238181A (en)
GB1193673A (en) Apparatus for Splitting Rock
GB1506868A (en) Method of securing roof bolts in a mine roof
AU477172B2 (en) Rock drill bit and sleeve assembly and bit installation method
GB1162037A (en) Wellhead
GB1533294A (en) Mining method and apparatus
GB1210292A (en) Improvements in or relating to devices for breaking down hard or rocky materials
AT287620B (en) Hydraulically operated impact tool, in particular impact drill for rock drilling or the like.
GB1128390A (en) A process of and machine for the winning of coal by the pillar and breast technique
JPS5929750B2 (en) Rock crushing method
GB1283546A (en) Method of mining material from a mine face with a rotary mining head
GB776253A (en) Improvements relating to methods of and devices for installing anchor bolts and the like
GB1108625A (en) Improvements in remotely controlled shovel loader vehicles for performing mining work
GB1242953A (en) Improvements in the flushing and filling of sand drains
SU1218112A1 (en) Method of working gently-sloping coal seams
GB1111256A (en) Method and device for widening a drill-hole in rock