GB1512001A – Mine roof support
– Google Patents
GB1512001A – Mine roof support
– Google Patents
Mine roof support
Info
Publication number
GB1512001A
GB1512001A
GB2628/74A
GB262874A
GB1512001A
GB 1512001 A
GB1512001 A
GB 1512001A
GB 2628/74 A
GB2628/74 A
GB 2628/74A
GB 262874 A
GB262874 A
GB 262874A
GB 1512001 A
GB1512001 A
GB 1512001A
Authority
GB
United Kingdom
Prior art keywords
support
side screen
mine roof
pivotal
floor
Prior art date
1974-01-19
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
GB2628/74A
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.)
Dowty Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment 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.)
1974-01-19
Filing date
1974-01-19
Publication date
1978-05-24
1974-01-19
Application filed by Dowty Mining Equipment Ltd
filed
Critical
Dowty Mining Equipment Ltd
1974-01-19
Priority to GB2628/74A
priority
Critical
patent/GB1512001A/en
1975-01-17
Priority to BE152449A
priority
patent/BE824477A/en
1975-01-20
Priority to DE2502109A
priority
patent/DE2502109B2/en
1975-01-20
Priority to ZA00750367A
priority
patent/ZA75367B/en
1975-09-02
Priority to US05/609,821
priority
patent/US4010618A/en
1978-05-24
Publication of GB1512001A
publication
Critical
patent/GB1512001A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
E—FIXED CONSTRUCTIONS
E21—EARTH DRILLING; MINING
E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
E—FIXED CONSTRUCTIONS
E21—EARTH DRILLING; MINING
E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
E21D23/0017—Pile type supports
E—FIXED CONSTRUCTIONS
E21—EARTH DRILLING; MINING
E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
E—FIXED CONSTRUCTIONS
E21—EARTH DRILLING; MINING
E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
Abstract
1512001 Advancing mine roof supports DOWTY MINING EQUIPMENT Ltd 17 April 1975 [19 Jan 1974] 02628/74 Heading E1P In a mine roof support comprising a floorengaging member 1, Fig. 2, a canopy 2 having a pair of parallel opposed edges extending in the direction of advance of the support and an extensible strut or struts 4, one said edge of the canopy is provided with one or more pivotal flaps 25 and means 29 for angularly urging each flap about its pivotal axis. The support is also provided with a pivotal cantilever extension and connecting means between floor members and an I-section beam to maintain constant floor spacing and accommodate floor uneveness, see Figs. 6, 7 and 8, (not shown), for details. In a modification, Fig. 11, the support is provided with a side screen 91 overlapping a side screen 89, an adjustable side screen 92 overlapping a side screen 88 and a hydraulically actuated flap 102. A hydraulic control circuit for the flaps is described with reference to Fig. 9 (not shown).
GB2628/74A
1974-01-19
1974-01-19
Mine roof support
Expired
GB1512001A
(en)
Priority Applications (5)
Application Number
Priority Date
Filing Date
Title
GB2628/74A
GB1512001A
(en)
1974-01-19
1974-01-19
Mine roof support
BE152449A
BE824477A
(en)
1974-01-19
1975-01-17
SUPPORT DEVICE
DE2502109A
DE2502109B2
(en)
1974-01-19
1975-01-20
Longwall frame with gap sealing
ZA00750367A
ZA75367B
(en)
1974-01-19
1975-01-20
Mine roof support
US05/609,821
US4010618A
(en)
1974-01-19
1975-09-02
Mine roof support
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB2628/74A
GB1512001A
(en)
1974-01-19
1974-01-19
Mine roof support
Publications (1)
Publication Number
Publication Date
GB1512001A
true
GB1512001A
(en)
1978-05-24
Family
ID=9742905
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2628/74A
Expired
GB1512001A
(en)
1974-01-19
1974-01-19
Mine roof support
Country Status (4)
Country
Link
BE
(1)
BE824477A
(en)
DE
(1)
DE2502109B2
(en)
GB
(1)
GB1512001A
(en)
ZA
(1)
ZA75367B
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN109869175A
(en)
*
2019-03-15
2019-06-11
济宁矿业集团有限公司霄云煤矿
A kind of hybrid advanced support method of fully-mechanized mining working
CN109956396A
(en)
*
2019-04-19
2019-07-02
安徽省矿业机电装备有限责任公司
Modular bracket hoisting structure
Families Citing this family (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1568967A
(en)
*
1976-02-06
1980-06-11
Dowty Mining Equipment Ltd
Mine roof support
DE2629788C3
(en)
*
1976-07-02
1981-08-13
Gewerkschaft Eisenhütte Westfalia, 4670 Lünen
Device for dust extraction in underground mining operations using the hollow profiles of the support frames as extraction lines
DE2646563C3
(en)
*
1976-10-15
1979-08-09
Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum
Expansion for the hem area of a longwall
DE2732339C2
(en)
*
1977-07-16
1990-03-29
Gewerkschaft Eisenhütte Westfalia, 4670 Lünen
Longwall mining, especially longwall mining
DE2808205C2
(en)
*
1978-02-25
1985-10-10
Gewerkschaft Eisenhütte Westfalia, 4670 Lünen
Hydraulic control for a gap cover arranged on the cap or on the breakage shield of a walking support
CN115288518B
(en)
*
2022-09-20
2023-07-07
湖北交建总承包公路工程有限公司
Safety support protection device for municipal foundation pit construction
1974
1974-01-19
GB
GB2628/74A
patent/GB1512001A/en
not_active
Expired
1975
1975-01-17
BE
BE152449A
patent/BE824477A/en
not_active
IP Right Cessation
1975-01-20
ZA
ZA00750367A
patent/ZA75367B/en
unknown
1975-01-20
DE
DE2502109A
patent/DE2502109B2/en
not_active
Ceased
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN109869175A
(en)
*
2019-03-15
2019-06-11
济宁矿业集团有限公司霄云煤矿
A kind of hybrid advanced support method of fully-mechanized mining working
CN109956396A
(en)
*
2019-04-19
2019-07-02
安徽省矿业机电装备有限责任公司
Modular bracket hoisting structure
Also Published As
Publication number
Publication date
DE2502109A1
(en)
1975-07-24
BE824477A
(en)
1975-05-15
ZA75367B
(en)
1976-03-31
DE2502109B2
(en)
1978-10-05
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Mine roof supports
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(en)
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(en)
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Support unit for advancing mine support system
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(en)
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(en)
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Self advancing hydraulic roof support frame assembly for face galleries in mines
Legal Events
Date
Code
Title
Description
1978-10-04
PS
Patent sealed
1989-12-13
PCNP
Patent ceased through non-payment of renewal fee
