| Document |
Document Title |
|
7293615 |
An earth boring apparatus for sinking shafts and removing shaft material from the shaft, the apparatus having at least two decks; hydraulic means for allowing movement of the decks relative to one another; releasable anchoring means asso...
|
|
6698978 |
A rock drilling rig has a carrier ( 1 ) provided with a service platform ( 7 ) which is arranged on a boom ( 6 ). The carrier ( 1 ) is provided with a four link mechanism ( 8 ) which is swingable in a plane perpendicular to the longitudi...
|
|
6374927 |
A dual purpose bracket assembly for a horizontal directional drill that retains pipes within a cartridge when the cartridge is detached from the drill and locks the cartridge to the drill when it is attached. The bracket assembly include...
|
|
5765662 |
A raise buggy has a storage and transport cabinet for storing and transporting equipment and material along an inclined raise, over an inclined raise floor extending between a base level and a raise face, wheels for rolling the cabinet o...
|
|
4986374 |
An apparatus for driving an upwardly directed shaft in rock, which includes a platform that can be regulated in height. The platform carries a drilling unit having engageable elements enabling fixation of the drilling unit relative the w...
|
|
4960175 |
An assembly for raise mining or the like includes a drive support carrying a drive means (10) for driving the drive support along a guide (4). The guide is attached to the drift wall (2) and is successively lengthened concurrently with t...
|
|
4624328 |
In shaft drilling apparatus for recovery of gas from subterranean formations includes a platform adapted for being suspended by a cable and rotated within a generally vertical shaft in the earth. Drilling and stabilizing apparatus are pr...
|
|
4527640 |
A working platform for a drilling apparatus for stoping shafts, said drilling apparatus comprising a base (3) displaceable in the direction of the shaft (1) and a supporting arm (5) pivotably supported on said base. On the supporting arm...
|
|
4494617 |
A machine for boring a shaft in earth strata or the like. An annular support ring means having an outside diameter approximately equal to the diameter of the shaft which is selectively engageable or disengageable with the shaft wall by t...
|
|
4255068 |
The method consists in boring a shaft in the sea floor to form a drilling station of sufficient size to accommodate personnel and equipment, in lining the shaft walls with a casing which is cemented against the walls and surmounted by a ...
|
|
4090736 |
A mining machine is provided which incorporates a detachable cab construction. The mining machine includes a clamping mechanism including a pair of a clamping hook assemblies for releasably clamping the cab body, and a lift cylinder for ...
|
|
3965995 |
A cutter wheel is mounted at the lower end of the machine for rotation about a horizontal tubular support. Cuttings are picked up by buckets on the cutter wheel and are directed into the tubular support to be received by an endless bucke...
|
|
3767263 |
An earth moving apparatus used for drilling various size tunnels ; for example, sewer tunnels, mine shafts, etc. A cylindrical shaped machine with self-contained power plant, drilling devices, controls, dirt removal device and a work are...
|
|
3547211 |
|
|
3497021 |
|
|
3379264 |
|
|
3237990 |
|
|
3217837 |
|
|
3085794 |
|
|
2810547 |
|
|
2172088 |
|
|
2171672 |
|
|
2090304 |
|
|
2070370 |
|
|
2065725 |
|
|
0622473 |
|
|
0447592 |
|
|
0428021 |
|
|
0202417 |
|
|
0146202 |
|
|
0065801 |
|
|
0007060 |
|
