PL296959A1 - Self-advancing open-end/shortwall roof supports for protecting a shortwall working in a thick and steeply inclined hard coal bed - Google Patents

Self-advancing open-end/shortwall roof supports for protecting a shortwall working in a thick and steeply inclined hard coal bed

Info

Publication number
PL296959A1
PL296959A1 PL29695992A PL29695992A PL296959A1 PL 296959 A1 PL296959 A1 PL 296959A1 PL 29695992 A PL29695992 A PL 29695992A PL 29695992 A PL29695992 A PL 29695992A PL 296959 A1 PL296959 A1 PL 296959A1
Authority
PL
Poland
Prior art keywords
shortwall
protecting
thick
self
working
Prior art date
Application number
PL29695992A
Other versions
PL169348B1 (en
Inventor
Krystian Zajac
Jozef Szafarczyk
Jerzy Merecz
Jan Sliwa
Original Assignee
Jankowice Kopalnia Wegla Kamie
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 Jankowice Kopalnia Wegla Kamie filed Critical Jankowice Kopalnia Wegla Kamie
Priority to PL29695992A priority Critical patent/PL169348B1/en
Publication of PL296959A1 publication Critical patent/PL296959A1/en
Publication of PL169348B1 publication Critical patent/PL169348B1/en

Links

PL29695992A 1992-12-09 1992-12-09 mechanized dressing and driving casing for securing the excavation excavation in a thick and strongly inclined hard coal seam PL169348B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL29695992A PL169348B1 (en) 1992-12-09 1992-12-09 mechanized dressing and driving casing for securing the excavation excavation in a thick and strongly inclined hard coal seam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL29695992A PL169348B1 (en) 1992-12-09 1992-12-09 mechanized dressing and driving casing for securing the excavation excavation in a thick and strongly inclined hard coal seam

Publications (2)

Publication Number Publication Date
PL296959A1 true PL296959A1 (en) 1994-06-13
PL169348B1 PL169348B1 (en) 1996-07-31

Family

ID=20059079

Family Applications (1)

Application Number Title Priority Date Filing Date
PL29695992A PL169348B1 (en) 1992-12-09 1992-12-09 mechanized dressing and driving casing for securing the excavation excavation in a thick and strongly inclined hard coal seam

Country Status (1)

Country Link
PL (1) PL169348B1 (en)

Also Published As

Publication number Publication date
PL169348B1 (en) 1996-07-31

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