PL296474A1 - Method of permanently changing operating range of self-advancing roof supports - Google Patents

Method of permanently changing operating range of self-advancing roof supports

Info

Publication number
PL296474A1
PL296474A1 PL29647492A PL29647492A PL296474A1 PL 296474 A1 PL296474 A1 PL 296474A1 PL 29647492 A PL29647492 A PL 29647492A PL 29647492 A PL29647492 A PL 29647492A PL 296474 A1 PL296474 A1 PL 296474A1
Authority
PL
Poland
Prior art keywords
self
operating range
changing operating
roof supports
permanently changing
Prior art date
Application number
PL29647492A
Inventor
Wojciech Borkowski
Boleslaw Michalik
Boguslaw Kotarba
Ryszard Gorski
Romuald Paszyn
Original Assignee
Sosnica Kopalnia Wegla Kamienn
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 Sosnica Kopalnia Wegla Kamienn filed Critical Sosnica Kopalnia Wegla Kamienn
Priority to PL29647492A priority Critical patent/PL296474A1/en
Publication of PL296474A1 publication Critical patent/PL296474A1/en

Links

PL29647492A 1992-11-03 1992-11-03 Method of permanently changing operating range of self-advancing roof supports PL296474A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL29647492A PL296474A1 (en) 1992-11-03 1992-11-03 Method of permanently changing operating range of self-advancing roof supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL29647492A PL296474A1 (en) 1992-11-03 1992-11-03 Method of permanently changing operating range of self-advancing roof supports

Publications (1)

Publication Number Publication Date
PL296474A1 true PL296474A1 (en) 1993-04-19

Family

ID=20058790

Family Applications (1)

Application Number Title Priority Date Filing Date
PL29647492A PL296474A1 (en) 1992-11-03 1992-11-03 Method of permanently changing operating range of self-advancing roof supports

Country Status (1)

Country Link
PL (1) PL296474A1 (en)

Similar Documents

Publication Publication Date Title
PL306924A1 (en) Mine roof supports
PL296474A1 (en) Method of permanently changing operating range of self-advancing roof supports
GB9224091D0 (en) Manufacture of roof tiles
PL306755A1 (en) Mining roof support and method of making same
PL311489A1 (en) Roof supports of self-advancing type
PL295066A1 (en) Self-advancing roof supports
PL53803Y1 (en) Self-advancing roof supports
PL300008A1 (en) Cap piece of self-advancing roof supports
ZA933156B (en) Mine prop
PL302114A1 (en) Method of changing initial carrying capacity of self-advancing roof supports
PL103907U1 (en) Constructional assembly of self-advancing roof supports
PL297682A1 (en) Self-advancing roof supports
PL55045Y1 (en) Self-advancing roof supports
PL299601A1 (en) Self-advancing roof supports
PL55052Y1 (en) Self-advancing roof supports
PL310419A1 (en) Roof-bar of mininf roof supports
PL297115A1 (en) Mine roof support
PL304835A1 (en) Component of a roof supporting system
PL289662A1 (en) Mine roof supports of prop type
PL311390A1 (en) Self-advancing roof supports
PL311825A1 (en) Self-advancing roof supports
PL307537A1 (en) Self-advancing roof supports
PL296527A1 (en) Prop-type roof supports
PL295455A1 (en) Roof support prop
PL295437A1 (en) Roof support prop