GB1522758A – Hydraulic mine prop
– Google Patents
GB1522758A – Hydraulic mine prop
– Google Patents
Hydraulic mine prop
Info
Publication number
GB1522758A
GB1522758A
GB36140/76A
GB3614076A
GB1522758A
GB 1522758 A
GB1522758 A
GB 1522758A
GB 36140/76 A
GB36140/76 A
GB 36140/76A
GB 3614076 A
GB3614076 A
GB 3614076A
GB 1522758 A
GB1522758 A
GB 1522758A
Authority
GB
United Kingdom
Prior art keywords
sept
orifice
mine roof
mine prop
support
Prior art date
1975-09-09
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
GB36140/76A
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.)
Voestalpine AG
Original Assignee
Voestalpine AG
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.)
1975-09-09
Filing date
1976-09-01
Publication date
1978-08-31
1976-09-01
Application filed by Voestalpine AG
filed
Critical
Voestalpine AG
1978-08-31
Publication of GB1522758A
publication
Critical
patent/GB1522758A/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
E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
E21D15/14—Telescopic props
E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
Abstract
1522758 Mine roof supports VEREINIGTE OESTERREICHISCHE EISEN UND STAHLWERKE ALPINE MONTAN AG 1 Sept 1976 [9 Sept 1975] 36140/76 Heading F1D In a mine roof support which comprises inner and outer tubular members 5, 4, Fig. 2, a relief valve is located outside the member 4 and is mounted on a housing 16 which communicates with a working chamber 13 through an orifice 15. The inner member 5 has a sealing ring 9 which slides over and substantially closes the orifice 15 when the support contracts, thus damping the end of the stroke.
GB36140/76A
1975-09-09
1976-09-01
Hydraulic mine prop
Expired
GB1522758A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
AT694775A
AT339237B
(en)
1975-09-09
1975-09-09
HYDRAULIC PIT STAMP
Publications (1)
Publication Number
Publication Date
GB1522758A
true
GB1522758A
(en)
1978-08-31
Family
ID=3591300
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB36140/76A
Expired
GB1522758A
(en)
1975-09-09
1976-09-01
Hydraulic mine prop
Country Status (10)
Country
Link
US
(1)
US4404893A
(en)
JP
(1)
JPS5245506A
(en)
AT
(1)
AT339237B
(en)
DE
(1)
DE2636791C3
(en)
FR
(1)
FR2323866A1
(en)
GB
(1)
GB1522758A
(en)
IN
(1)
IN144129B
(en)
PL
(1)
PL108898B1
(en)
SU
(1)
SU712038A3
(en)
ZA
(2)
ZA764943B
(en)
Families Citing this family (12)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
HU183739B
(en)
*
1981-12-15
1984-05-28
Tatabanyai Szenbanyak
Hydraulic cylinder of combination operation particularly prop
ZA828996B
(en)
*
1982-12-07
1983-09-28
Bochumer Eisen Heintzmann
Hydraulic prop
JPH0651564U
(en)
*
1992-12-22
1994-07-15
珍治 三木
Shaft coupling
US5584611A
(en)
*
1994-11-22
1996-12-17
Long-Airdox
Roof support for underground excavations
GB2329428A
(en)
*
1997-09-20
1999-03-24
Joy Mining Machinery Limited
Improvements in and relating to a hydraulic control system
CN102444415B
(en)
*
2010-10-14
2014-07-02
卡特彼勒（郑州）有限公司
Tip bracket for solid filling
CN103362524B
(en)
*
2013-08-03
2015-06-10
刘立起
Drum type boosting multi-ring composite sealing handle body
CN106401634B
(en)
*
2016-11-24
2018-06-29
安徽理工大学
A kind of front and rear column split release hydraulic support
CN106437809B
(en)
*
2016-11-24
2018-08-03
安徽理工大学
It is classified release hydraulic support and hydraulic support control method
WO2018094655A1
(en)
*
2016-11-24
2018-05-31
安徽理工大学
Hydraulic support with staged pressure relief and method for controlling same
US10774642B1
(en)
*
2019-05-05
2020-09-15
Liaoning University
Hydraulic support unit and hydraulic support for anti-rock burst roadway
CN111502717B
(en)
*
2019-12-30
2022-07-08
山东塔高矿业机械装备制造有限公司
Advanced support device and method for roadway and application of advanced support device
Family Cites Families (19)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CH92916A
(en)
*
1920-10-13
1922-02-16
W H Dorman & Co Ltd
Shoring column for tunnels, mines etc.
GB290688A
(en)
*
1926-11-22
1928-05-22
Henry Chipman Miller
Improvements in and connected with hydraulic and other fluid pressure jacks
US2139185A
(en)
*
1936-08-12
1938-12-06
Teves Kg Alfred
Pressure actuated piston lock release
DE1063101B
(en)
*
1956-02-20
1959-08-13
Gutehoffnungshuette Sterkrade
Hydraulic pit ram
DE1000315B
(en)
*
1956-03-23
1957-01-10
Hermann Schwarz K G
Multi-part hydraulic support element for excavation work
BE560243A
(en)
*
1956-08-25
BE563275A
(en)
*
1956-12-27
GB844137A
(en)
*
1957-11-15
1960-08-10
Nicolas Joseph Rutigliano
Improvements relating to telescopic props or supports
NL251933A
(en)
*
1959-07-03
BE607500A
(en)
*
1960-09-02
US3138066A
(en)
*
1961-10-27
1964-06-23
Phil Wood Ind Ltd
Cushioned-stroke reciprocatory hydraulic motor
DE1191776B
(en)
*
1962-04-09
1965-04-29
Kloeckner Werke Ag
Hydraulic pit ram
US3147671A
(en)
*
1962-12-04
1964-09-08
Gen Motors Corp
Hydraulic actuator
GB1050951A
(en)
*
1963-01-26
US3249018A
(en)
*
1963-07-17
1966-05-03
Ellis Fluid Dynamics Corp
Fluid motor
DE1932212U
(en)
*
1965-03-05
1966-02-10
Gewerk Eisenhuette Westfalia
DOUBLE EXTENDABLE HYDRAULIC PIT STAMP.
FR1492817A
(en)
*
1965-12-22
1967-08-25
Improvements to relief valves and caving devices for hydraulic mine props
US3559538A
(en)
*
1968-12-23
1971-02-02
Borg Warner
Actuator
DE2239680A1
(en)
*
1971-10-23
1973-05-03
Kopalnia Wegla Kamiennego Szom
MECHANIZED PIT CONSTRUCTION
1975
1975-09-09
AT
AT694775A
patent/AT339237B/en
not_active
IP Right Cessation
1976
1976-08-16
DE
DE2636791A
patent/DE2636791C3/en
not_active
Expired
1976-08-17
ZA
ZA764943A
patent/ZA764943B/en
unknown
1976-08-17
ZA
ZA764944A
patent/ZA764944B/en
unknown
1976-08-20
IN
IN1515/CAL/76A
patent/IN144129B/en
unknown
1976-09-01
GB
GB36140/76A
patent/GB1522758A/en
not_active
Expired
1976-09-03
SU
SU762393549A
patent/SU712038A3/en
active
1976-09-03
FR
FR7626709A
patent/FR2323866A1/en
not_active
Withdrawn
1976-09-08
PL
PL1976192251A
patent/PL108898B1/en
unknown
1976-09-09
JP
JP51107316A
patent/JPS5245506A/en
active
Granted
1978
1978-03-17
US
US05/887,774
patent/US4404893A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
SU712038A3
(en)
1980-01-25
ATA694775A
(en)
1977-02-15
JPS562600B2
(en)
1981-01-20
AT339237B
(en)
1977-10-10
DE2636791A1
(en)
1977-03-17
US4404893A
(en)
1983-09-20
PL108898B1
(en)
1980-05-31
DE2636791C3
(en)
1985-02-07
JPS5245506A
(en)
1977-04-11
FR2323866A1
(en)
1977-04-08
DE2636791B2
(en)
1978-05-18
ZA764943B
(en)
1977-07-27
IN144129B
(en)
1978-03-25
ZA764944B
(en)
1977-07-27
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Legal Events
Date
Code
Title
Description
1978-12-20
PS
Patent sealed [section 19, patents act 1949]
1981-04-08
PCNP
Patent ceased through non-payment of renewal fee
