PL111976B2 - Hydraulic system for controlling operation of grouped mine roof support sections - Google Patents

Hydraulic system for controlling operation of grouped mine roof support sections

Info

Publication number
PL111976B2
PL111976B2 PL20632078A PL20632078A PL111976B2 PL 111976 B2 PL111976 B2 PL 111976B2 PL 20632078 A PL20632078 A PL 20632078A PL 20632078 A PL20632078 A PL 20632078A PL 111976 B2 PL111976 B2 PL 111976B2
Authority
PL
Poland
Prior art keywords
grouped
hydraulic system
controlling operation
support sections
roof support
Prior art date
Application number
PL20632078A
Other versions
PL206320A1 (en
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
Priority to PL20632078A priority Critical patent/PL111976B2/en
Publication of PL206320A1 publication Critical patent/PL206320A1/en
Publication of PL111976B2 publication Critical patent/PL111976B2/en

Links

PL20632078A 1978-04-21 1978-04-21 Hydraulic system for controlling operation of grouped mine roof support sections PL111976B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL20632078A PL111976B2 (en) 1978-04-21 1978-04-21 Hydraulic system for controlling operation of grouped mine roof support sections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL20632078A PL111976B2 (en) 1978-04-21 1978-04-21 Hydraulic system for controlling operation of grouped mine roof support sections

Publications (2)

Publication Number Publication Date
PL206320A1 PL206320A1 (en) 1979-02-26
PL111976B2 true PL111976B2 (en) 1980-09-30

Family

ID=19988874

Family Applications (1)

Application Number Title Priority Date Filing Date
PL20632078A PL111976B2 (en) 1978-04-21 1978-04-21 Hydraulic system for controlling operation of grouped mine roof support sections

Country Status (1)

Country Link
PL (1) PL111976B2 (en)

Also Published As

Publication number Publication date
PL206320A1 (en) 1979-02-26

Similar Documents

Publication Publication Date Title
JPS5554701A (en) Loaddresponsible controller for hydraulic system
AU543908B2 (en) Hydraulic control of mine roof support
ZA79888B (en) Mine roof support system
GB2074293B (en) Control unit for an electro-hydraulic roof support control arrangement
AU4630779A (en) Mine roof support
AU513162B2 (en) Hydraulic control of mine roof supports
GB2021818B (en) Hydraulic control system
AU553180B2 (en) A mine roof support control system
PL241869A1 (en) Hydraulic control system for a self-advancing roof support
GB2031496B (en) Mine roof support unit
GB2047316B (en) Hydraulic control apparatus for controlling the operation of mine roof support props
GB2068050B (en) Hydraulic control arrangement for a roof support unit of a mineral mine
GB2031981B (en) Shield-type mine roof support
ZA794742B (en) Hydraulic control system
JPS54133271A (en) Hydraulic servo control system for automobiles
AU527664B2 (en) Mine roof support
AU7094981A (en) Mine roof support control system
GB2090896B (en) Control apparatus for hydraulic prop of mine roof support
ZA763380B (en) Continuous roof support system for tunnel boring
AU7026281A (en) Controls for mine roof support
AU558923B2 (en) Hydraulic control on mine roof support
AU4913179A (en) Roof support control means
GB2015067B (en) Control systems for mine roof supports
PL111976B2 (en) Hydraulic system for controlling operation of grouped mine roof support sections
ZA793763B (en) Shield-type mine roof support