|
DE1248593B
|
|
Elastic connection of the support springs with the stamps, especially for striding expansion teams
|
|
DE1243612B
|
|
Hydraulic front cap
|
|
DE1230747B
|
|
Wandering pit support
|
|
DE1224247B
|
|
Striding extension team with support springs and connecting springs
|
|
DE1232909B
|
|
Gradual longwall mining, especially for steep storage
|
|
DE1239648B
|
|
Hydraulic pit ram
|
|
DE1230745B
|
|
Vorpfaendkappe hinged to a cap
|
|
DE1232908B
|
|
Expansion team for the advancing longwall construction
|
|
DE1216224B
|
|
Spring cap holder for pit stamp
|
|
DE1205035B
|
|
Striding support frame
|
|
DE1207909B
|
|
Stamp foot holder
|
|
DE1229966B
|
|
Double-acting hydraulic pit ram
|
|
DE1178813B
|
|
Elastic suspension for connecting extension frames
|
|
DE1155411B
|
|
Stamp supports, especially for extension teams
|
|
GB972317A
|
|
Improvements in or relating to telescopic pit props
|
|
DE1130781B
|
|
Detachable holder for pit stamp
|
|
DE1129911B
|
|
Pressurized telescopic pit ram
|
|
GB892179A
|
|
Improvements in or relating to hydraulically actuated self advancing roof props
|
|
DE1169878B
|
|
Installation on hydraulically working expansion frames
|
|
DE1109629B
|
|
Arrangement for mechanized longwall mining
|
