Flexible iron polygonal or arched construction for mining
DE696937C
Iron track expansion
DE734214C
Schuettelrutschenantrieb, consisting of two cylinders arranged on both sides of the chute and a control cylinder arranged between these and below the chute and parallel to the cylinders
DE694540C
Iron mine support
DE700144C
Drive for paddle slides consisting of two cylinders arranged on both sides of the slide and parallel to its longitudinal axis
DE724655C
Shake slide drive
DE724210C
Pit lining made of profile iron, especially polygonal lining
DE673724C
Brake conveyor for mining operations, in which the conveyed material swivels inhibiting bodies arranged in the slide against a spring resistance
DE694543C
Protective wall composed of plates for the recovery of mountains
DE683023C
Protection against explosion expansion in mines
DE672279C
Conveyor belt
DE672278C
Steel conveyor belt
DE687174C
Wooden, curved pit construction part assembled in layers for individual construction frames
