BE489269Q - perfectionnements aux etançons metalliques reglables - Google Patents

perfectionnements aux etançons metalliques reglables

Info

Publication number
BE489269Q
BE489269Q BE489269A BE489269A BE489269Q BE 489269 Q BE489269 Q BE 489269Q BE 489269 A BE489269 A BE 489269A BE 489269 A BE489269 A BE 489269A BE 489269 Q BE489269 Q BE 489269Q
Authority
BE
Belgium
Prior art keywords
adjustable metal
metal props
props
adjustable
metal
Prior art date
Application number
BE489269A
Other languages
English (en)
French (fr)
Original Assignee
Acrow 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 Acrow Ltd filed Critical Acrow Ltd
Application granted granted Critical
Publication of BE489269Q publication Critical patent/BE489269Q/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E04G25/061—Shores or struts; Chocks telescopic with parts held together by positive means by pins
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E04G25/061—Shores or struts; Chocks telescopic with parts held together by positive means by pins
    • E04G25/063—Shores or struts; Chocks telescopic with parts held together by positive means by pins with safety devices to avoid the accidental loss or unlocking of the pin, e.g. chains attaching the pin to the prop
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E04G25/065—Shores or struts; Chocks telescopic with parts held together by positive means by a threaded nut
    • 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
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/24—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with axial screw-and-nut, rack-and-worm, or like mechanism
BE489269A 1947-01-17 1949-05-27 perfectionnements aux etançons metalliques reglables BE489269Q (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB170147X 1947-01-17

Publications (1)

Publication Number Publication Date
BE489269Q true BE489269Q (fr) 1949-06-15

Family

ID=27257442

Family Applications (1)

Application Number Title Priority Date Filing Date
BE489269A BE489269Q (fr) 1947-01-17 1949-05-27 perfectionnements aux etançons metalliques reglables

Country Status (5)

Country Link
US (1) US2468484A (de)
BE (1) BE489269Q (de)
CH (1) CH256433A (de)
DE (1) DE806907C (de)
FR (1) FR965662A (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522336A (en) * 1946-10-05 1950-09-12 Anderson Nils Erland Stepladder
GB649368A (en) * 1948-06-30 1951-01-24 De Vigier William Improvements in or relating to adjustable metal props
US2721051A (en) * 1949-04-07 1955-10-18 Lobbe Armin Hydraulic pit props
BE503073A (de) * 1950-05-08
US2750155A (en) * 1952-02-18 1956-06-12 Rogers Iron Works Company Hydraulic jib arm for drilling machines
US2777660A (en) * 1953-11-27 1957-01-15 Henry P Albrecht Adjustable shores
US2804673A (en) * 1954-06-08 1957-09-03 Fortunat B Fex Concrete beam form supports
US3920220A (en) * 1975-01-17 1975-11-18 Dell Holdings Ltd Jack post
US4596371A (en) * 1984-05-31 1986-06-24 Clark Burney E Recreational vehicle support and stabilizing device
US5310153A (en) * 1993-04-26 1994-05-10 Jackson George W Quick release washer for a shoring post
ITPD940140A1 (it) * 1993-09-30 1996-01-27 Manfrotto Lino & C Spa Asta estensibile
US7481408B1 (en) 2007-12-06 2009-01-27 Knight Stephen R Adjustable telescoping support bar for raising and/or holding an object in an elevated position
WO2022034493A1 (en) * 2020-08-10 2022-02-17 Peri Ag Adjustable telescopic steel prop assembly having push-pull action

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT69646B (de) * 1914-02-23 1915-08-25 Fahrzeugfabrik Eisenach Verstellbare Wagenstütze für Beobachtungswagen und dgl.
CH162231A (fr) * 1932-06-02 1933-06-15 Glama S A Vérin télescopique pour véhicules automobiles, plus particulièrement de poids lourds.
CH172279A (fr) * 1933-11-07 1934-10-15 Adria S A Etai.
US2352117A (en) * 1943-06-03 1944-06-20 Pasternack Joseph Jack

Also Published As

Publication number Publication date
US2468484A (en) 1949-04-26
FR965662A (fr) 1950-09-19
DE806907C (de) 1951-06-21
CH256433A (de) 1948-08-31

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