CA708497A - Telescopic hydraulic pit prop and a hydraulic cylinder for such a pit prop - Google Patents

Telescopic hydraulic pit prop and a hydraulic cylinder for such a pit prop

Info

Publication number
CA708497A
CA708497A CA708497A CA708497DA CA708497A CA 708497 A CA708497 A CA 708497A CA 708497 A CA708497 A CA 708497A CA 708497D A CA708497D A CA 708497DA CA 708497 A CA708497 A CA 708497A
Authority
CA
Canada
Prior art keywords
pit prop
hydraulic
hydraulic cylinder
prop
pit
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
CA708497A
Inventor
W. De Beijer Antony
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.)
Nv Tot Exploitatie Van Hydraulische Mijnapparatuur Mij
Original Assignee
Nv Tot Exploitatie Van Hydraulische Mijnapparatuur Mij
Publication date
Application granted granted Critical
Publication of CA708497A publication Critical patent/CA708497A/en
Expired legal-status Critical Current

Links

CA708497A Telescopic hydraulic pit prop and a hydraulic cylinder for such a pit prop Expired CA708497A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA708497T

Publications (1)

Publication Number Publication Date
CA708497A true CA708497A (en) 1965-04-27

Family

ID=36037765

Family Applications (1)

Application Number Title Priority Date Filing Date
CA708497A Expired CA708497A (en) Telescopic hydraulic pit prop and a hydraulic cylinder for such a pit prop

Country Status (1)

Country Link
CA (1) CA708497A (en)

Similar Documents

Publication Publication Date Title
CA708497A (en) Telescopic hydraulic pit prop and a hydraulic cylinder for such a pit prop
CA704500A (en) Hydraulic jack
AU409560B2 (en) Hydraulic jack
CA773949A (en) Hydraulic props
AU410319B1 (en) Telescopically extensible hydraulic boom
CA710614A (en) Multiple stage telescopic cylinders
AU1386366A (en) An improved hydraulic jack
CA764216A (en) Piston for hydraulic and like cylinders, particularly a ram piston for a hydraulic pit prop
AU422593B2 (en) Hydraulic lifting unit
AU5842565A (en) Hydraulic jack
CA714879A (en) Hydraulic rams
CA751187A (en) Hydraulic cylinder
CA761330A (en) Hydraulic hoisting
CA727962A (en) Telescopic hydraulic cylinder apparatus
IE29058L (en) Hydraulic jack
CA779145A (en) Hydraulic jacks
AU6654665A (en) Hydraulic lifting unit
CA769585A (en) Hydraulically operated mine prop
CA713865A (en) Cylinder construction for hydraulic apparatus
CA775994A (en) Hydraulic jack
CA795197A (en) Hydraulic jack
AU4751064A (en) An improved hydraulic pit prop
AU406888B2 (en) Hydraulic mining pit prop
AU407919B2 (en) Hydraulic hoisting
IE28953L (en) Hydraulic lifting jack