135827 ⎘
Propulsion of machines for slitting or completely freeing the mineral from the seam by means on the machine exerting a thrust against fixed supports
GUIDE SHOE FOR MINING MACHINE
#2RACKBAR ROTATION LIMIT
#3GUIDE SHOE FOR MINING MACHINE
#4GUIDE SHOE FOR MINING MACHINE
#5Distributed coal cutting device for longwall face of coal mine
#6Cable handling system for longwall mining machines
#7Vertical lifting type drum coal-mining machine without rocker arm
#8Climb structure for a robot
#9Support structure for rotary sensor
#10Guide shoe for mining machine
#11Trapping shoe lubrication system
#12Control method for longwall shearer
#13Device and method for driving tunnels, galleries or the like
#14Drive mechanism for a longwall mining machine
#15Lump breaker for mining machine
#16Drive transmission method in a longwall shearer loader
#17Feed system for an underground winning machine, rack bar and drive sprocket therefor
#18Rack and pinion arrangement for a mining extraction machine and rack and pinion rod therefor
#19Drive mechanism for a longwall mining machine
#20RACK ARRANGEMENT FOR UNDERGROUND WINNING INSTALLATIONS AND BEARING BRACKET THEREFOR
#21Cooling a ranging arm gear case on a longwall shearer
#22Rack bar haulage system with an improved rackbar
#23Rack bar haulage system with an improved rackbar to line pan connection
#24RACK BAR HAULAGE SYSTEM WITH AN IMPROVED RACKBAR TO LINE PAN CONNECTION
#25Cooling a ranging arm gear case on a longwall shearer
#26Guide shoe for a roller-type loader and wear inserts for guide shoes
#27Shearer-loader drive subassembly and guide shoe for it
#28Coal face support in a mine