FR1001031A - étai extensible perfectionné - Google Patents

étai extensible perfectionné

Info

Publication number
FR1001031A
FR1001031A FR1001031DA FR1001031A FR 1001031 A FR1001031 A FR 1001031A FR 1001031D A FR1001031D A FR 1001031DA FR 1001031 A FR1001031 A FR 1001031A
Authority
FR
France
Prior art keywords
advanced
extendable prop
extendable
prop
advanced extendable
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
Other languages
English (en)
Inventor
John Maurice Towler
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.)
Mavor and Coulson Ltd
Original Assignee
Mavor and Coulson 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 Mavor and Coulson Ltd filed Critical Mavor and Coulson Ltd
Application granted granted Critical
Publication of FR1001031A publication Critical patent/FR1001031A/fr
Expired legal-status Critical Current

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
FR1001031D 1948-03-06 1949-12-06 étai extensible perfectionné Expired FR1001031A (fr)

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
FR1001031A true FR1001031A (fr) 1952-02-19

Family

ID=9825052

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1001031D Expired FR1001031A (fr) 1948-03-06 1949-12-06 étai extensible perfectionné

Country Status (5)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300894A1 (fr) * 1975-02-12 1976-09-10 Bennes Marrel Dispo

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973341C (de) * 1951-03-13 1960-01-28 Ewald Wiemann Maschf Ventil fuer hydraulische Grubenstempel
DE1023435B (de) * 1951-06-09 1958-01-30 Eisenwerk Wanheim G M B H Hydraulischer Grubenstempel
BE532039A (fr) * 1953-09-24 1900-01-01
US2830563A (en) * 1954-03-26 1958-04-15 Burton B Burckhalter Automatic jack leg
BE548513A (fr) * 1955-06-10
DE1078516B (de) * 1956-07-17 1960-03-31 Bwg Bergwerk Walzwerk Nachgiebiger hydraulischer Grubenstempel
DE1089349B (de) * 1957-04-15 1960-09-22 Hermann Schwarz Kommanditgesel Mehrteiliges Stuetzelement fuer den Grubenausbau
US2984000A (en) * 1957-05-01 1961-05-16 Taylor Wilson Mfg Company Pipe coupling screw-on machine controls
DE1143469B (de) * 1957-07-30 1963-02-14 Gewerk Eisenhuette Westfalia Ventil zur Steuerung hydraulicher Ausbaugestelle fuer bergmaennische Gewinnungsbetriebe
US2970577A (en) * 1958-01-28 1961-02-07 Anderson Clayton & Co Hydraulic lift
DE1193458B (de) * 1958-08-11 1965-05-26 Dobson Ltd W E & F Wandernder Grubenausbau
DE1168849B (de) * 1958-10-30 1964-04-30 Wilhelm Steinkopf Hydraulischer Grubenstempel
NL248713A (fr) * 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 (de) * 1963-08-17 1967-07-13 Glueckauf Guenther Klerner Mas Sicherungsvorrichtung fuer die Abspannvorrichtung eines Strebfoerderers
DE1229966B (de) * 1964-06-25 1966-12-08 Hoesch Bergbautechnik G M B H Doppeltwirkender hydraulischer Grubenstempel
DE1301026B (de) * 1964-11-14 1969-08-14 Reinhard Hoernlein Kg Holz Und Hydropneumatisches Hebeaggregat, insbesondere fuer hoehenverstellbare Tische und Stuehle
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
FR2358412A1 (fr) * 1976-07-13 1978-02-10 Parcor Procede de preparation de la vincamine et d'alcaloides apparentes
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 (de) * 2007-06-23 2009-12-17 Herrmann Ag Vorrichtung zum Heben von Objekten, insbesondere für Fahrzeuge
DE202007016572U1 (de) * 2007-11-27 2008-02-21 It Industrietechnik Ltd. Ausbaustütze für den untertägigen Berg- und Tunnelbau
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 (de) * 1933-02-10 1935-11-08 Hugo Schramm Aus zwei ineinanderverschiebbaren Teilen bestehender nachgiebiger Grubenstempel
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
FR2300894A1 (fr) * 1975-02-12 1976-09-10 Bennes Marrel Dispo

Also Published As

Publication number Publication date
NL71059C (fr) 1952-10-15
GB640414A (en) 1950-07-19
DE872192C (de) 1953-03-30
US2638075A (en) 1953-05-12

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