NL71059C - - Google Patents

Info

Publication number
NL71059C
NL71059C NL150091A NL150091A NL71059C NL 71059 C NL71059 C NL 71059C NL 150091 A NL150091 A NL 150091A NL 150091 A NL150091 A NL 150091A NL 71059 C NL71059 C NL 71059C
Authority
NL
Netherlands
Application number
NL150091A
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 filed Critical
Application granted granted Critical
Publication of NL71059C publication Critical patent/NL71059C/xx

Links

Classifications

    • 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
    • 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
    • E21D15/46—Telescopic props with load-measuring devices; with alarm devices
    • E21D15/465—Telescopic props with load-measuring devices; with alarm devices with essential hydraulic or pneumatic details
NL150091A 1948-03-06 1949-11-24 NL71059C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7017/48A GB640414A (en) 1948-03-06 1948-03-06 Improvements in props

Publications (1)

Publication Number Publication Date
NL71059C true NL71059C (en) 1952-10-15

Family

ID=9825052

Family Applications (1)

Application Number Title Priority Date Filing Date
NL150091A NL71059C (en) 1948-03-06 1949-11-24

Country Status (5)

Country Link
US (1) US2638075A (en)
DE (1) DE872192C (en)
FR (1) FR1001031A (en)
GB (1) GB640414A (en)
NL (1) NL71059C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358412A1 (en) * 1976-07-13 1978-02-10 Parcor PROCESS FOR THE PREPARATION OF VINCAMINE AND RELATED ALKALOIDS

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973341C (en) * 1951-03-13 1960-01-28 Ewald Wiemann Maschf Valve for hydraulic pit ram
DE1023435B (en) * 1951-06-09 1958-01-30 Eisenwerk Wanheim G M B H Hydraulic pit ram
BE532039A (en) * 1953-09-24 1900-01-01
US2830563A (en) * 1954-03-26 1958-04-15 Burton B Burckhalter Automatic jack leg
BE548513A (en) * 1955-06-10
DE1078516B (en) * 1956-07-17 1960-03-31 Bwg Bergwerk Walzwerk Compliant hydraulic pit ram
DE1089349B (en) * 1957-04-15 1960-09-22 Hermann Schwarz Kommanditgesel Multi-part support element for excavation work
US2984000A (en) * 1957-05-01 1961-05-16 Taylor Wilson Mfg Company Pipe coupling screw-on machine controls
DE1143469B (en) * 1957-07-30 1963-02-14 Gewerk Eisenhuette Westfalia Valve for controlling hydraulic support frames for mining operations
US2970577A (en) * 1958-01-28 1961-02-07 Anderson Clayton & Co Hydraulic lift
DE1193458B (en) * 1958-08-11 1965-05-26 Dobson Ltd W E & F Wandering pit support
DE1168849B (en) * 1958-10-30 1964-04-30 Wilhelm Steinkopf Hydraulic pit ram
NL248713A (en) * 1959-02-23
US3112676A (en) * 1959-06-16 1963-12-03 Amalgamated Dental Co Ltd Hoist
GB962543A (en) * 1959-08-21 1964-07-01 Acrow Eng Ltd Improvements in and relating to hydraulic props
DE1244092B (en) * 1963-08-17 1967-07-13 Glueckauf Guenther Klerner Mas Safety device for the tensioning device of a face conveyor
DE1229966B (en) * 1964-06-25 1966-12-08 Hoesch Bergbautechnik G M B H Double-acting hydraulic pit ram
DE1301026B (en) * 1964-11-14 1969-08-14 Reinhard Hoernlein Kg Holz Und Hydropneumatic lifting unit, especially for height-adjustable tables and chairs
US3311026A (en) * 1965-12-27 1967-03-28 Caterpillar Tractor Co Bypass valve for hydraulic jacks
US3415342A (en) * 1967-06-28 1968-12-10 Joyce Cridland Co Vehicle lifting apparatus
US3693500A (en) * 1970-06-01 1972-09-26 Gilbert & Barker Mfg Co Fluid pressure controlled power unit
FR2300894A1 (en) * 1975-02-12 1976-09-10 Bennes Marrel Shock absorber for sledge mounted mine roof support - is membrane pressure accumulator housed inside piston of actuator strut
US4281585A (en) * 1978-03-13 1981-08-04 The Bendix Corporation Hydraulic brake booster and valve member
US5516070A (en) * 1990-10-01 1996-05-14 Leonard Studio Equipment, Inc. Camera pedestal drive column
DE102007029017B4 (en) * 2007-06-23 2009-12-17 Herrmann Ag Device for lifting objects, in particular for vehicles
DE202007016572U1 (en) * 2007-11-27 2008-02-21 It Industrietechnik Ltd. Outfitting support for underground mining and tunneling
US20130193626A1 (en) * 2012-01-31 2013-08-01 Alphonso Woodburn Adjustable height turntable device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1797297A (en) * 1931-03-24 Begtrlating vaiate
US250103A (en) * 1881-11-29 reynolds
US1299668A (en) * 1918-04-10 1919-04-08 August Blomquist Air lifting-jack.
US2085961A (en) * 1929-04-03 1937-07-06 John G Dorward Hydraulic lift
US1899534A (en) * 1930-05-05 1933-02-28 Curtis Mfg Co Automobile lift
DE621526C (en) * 1933-02-10 1935-11-08 Hugo Schramm Resilient pit punch consisting of two telescopic parts
US2336808A (en) * 1941-11-21 1943-12-14 Globe Hoist Co Hydraulic hoist

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358412A1 (en) * 1976-07-13 1978-02-10 Parcor PROCESS FOR THE PREPARATION OF VINCAMINE AND RELATED ALKALOIDS

Also Published As

Publication number Publication date
GB640414A (en) 1950-07-19
DE872192C (en) 1953-03-30
US2638075A (en) 1953-05-12
FR1001031A (en) 1952-02-19

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