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6216797 |
Thrust system for a horizontal directional drill
A thrust system for a horizontal directional drill is provided. The thrust system includes a drill boom having a drive sprocket positioned at the first end thereof and a driven sprocket positioned...
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4703811 |
Drilling and/or lifting machine
This invention relates to a drilling and/or lifting machine, in particular a track-mounted drilling and lifting rig. The machine comprises a movable carriage, a first lifting and/or tool carrying...
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4641716 |
Method and equipment for rock drilling
A drilling equipment and a method is intended for horizontally boring rocks with a low bench height. The drilling equipment can be used as an accessory to an ordinary dredger or the like. The whole...
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4601000 |
Electrohydraulic control system for a rockdrill assembly
An electrohydraulic control system for an arm assembly of the type described in U.S. Pat. No. 4,364,540 utilizes an electric computer (microprocessor) which receives a nonlinear or harmonic signal...
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4537263 |
Method and means for adjusting the feed support of a rock drilling unit into a given distance from the drilling location
The feed support of a rock drilling unit is adjusted to be a given distance from a rock surface wherein holes are to be drilled. A drill bit is moved into abutment with the rock surface. The feed...
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4453773 |
Pavement breaking apparatus
Apparatus for breaking concrete and asphalt pavement and the like comprising a frame adapted to be supported by and above pavement to be broken. Power operated means move the frame in one and...
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4436455 |
Universally positionable low profile mine drilling machine and method
An electric power actuated rubber tired carriage having a height profile substantially that of the tires on the wheels includes machinery for universally positioning in three separate degrees of...
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4364540 |
Support-arm assembly for a drill or borer, particularly for subterranean applications
A mining drill comprising a rail along which a mining drill head is slidably rectilinear, this rail being carried by a hydraulic motor pivotally connected to a rotary head at the end of an arm...
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4347692 |
Portable drilling rig
A portable drilling rig for mounting on a flatbed truck or other carrier vehicle, includes a turntable rotatably mounted on the truck bed; a slide pivotally mounted on the top of the turntable for...
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4315550 |
Self-propelled apparatus for setting cemetery markers and the like
A wheeled, self-propelled apparatus has a percussion tool or hammer mounted on its forward end and an impact transmitting means carried on the tractor below the hammer. The impact transmitting...
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4288056 |
Device for setting the direction and/or the inclination of an elongated rock drilling apparatus
A device for setting the direction and/or inclination of an elongated rock drilling apparatus. The actual value of the direction in each of two perpendicular planes is sensed by a rotatable screen...
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4264051 |
Laterally adjustable multiple head
Drilling equipment comprises a single boom supporting a plurality of drilling masts each provided with a drilling machine, adjustment means being provided to simultaneously adjust the relative...
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4251046 |
Extensible beam arrangement
Rock drilling equipment includes a boom carrying an extensible beam arrangement supporting a drilling mast, the extensible beam arrangement comprising a support pivotally mounted on the boom, a...
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4230372 |
Dual rock cutter wheel trencher
Apparatus and method for digging deep vertical walled trenches in solid rock such as limestone. The apparatus comprises a base supported by four crawler type traction means. A turntable is...
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4212358 |
Posthole digging apparatus
A self-propelled posthole digging machine having a vertical drilling assembly mounted on one side thereof by means of an undercarriage frame attachment. This assembly comprises a vertical guide...
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4203266 |
Mast leveling and support apparatus
A box-like platform having a mast leveling hinge support anchored thereto and a mast structure pivotally attached to the upper end of the hinge support is pivotally attached at one of its ends to...
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4190120 |
Moveable guide structure for a sub-sea drilling template
A sub-sea template and moveable guide structure assembly for conducting sub-sea drilling and production operations selectively between a plurality of adjacent sub-sea wells has a sub-sea well...
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4132276 |
Arrangement for forming vertical or steeply inclined shafts
A stopping apparatus is suspended in a pilot shaft and blasting charge holes are drilled outwardly and downwardly from successive vertical positions from the bottom to the top of the pilot shaft to...
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4126193 |
Mobile drilling apparatus
Drilling apparatus mounted on a self-propelled base equipped with a joint to permit use on uneven terrain and drilling at various angles with respect to the terrain surface; embodiments of the...
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4106225 |
Method and apparatus for excavating underpinning holes
An underpinning excavator which comprises a crane having a horizontal beam and a boom extending angularly upwardly and outwardly above the beam and a digging assembly which includes a vertical rod...
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4102094 |
Bottom brace for crane
There is disclosed herein a portable crane having a boom and lower brace supporting an elongated lead adapted to carry a pile driver, drill or other tool. The outer end of the brace has a capstan...
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4068895 |
Demolition machine for delining a furnace
The masonary or refractory material employed in the lining of blast furnaces has to be demolished, torn out, reconditioned, or replaced periodically, due to wear and deterioration of such material...
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4050526 |
Post driving machine
A portable hydraulic actuated machine for driving posts, ground anchors, concrete breakers, core drills and the like work pieces into the ground, pavements, or wall structures, maintains a...
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3921730 |
Earth working and work support machine
Handling and digging apparatus comprises a chassis, a jib pivotally mounted on the chassis and an arm pivotally connected at one end to the jib, a digging tool and a handling tool being permanently...
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3919816 |
Mast supporting adjustability device
A drill rig having a universally mounted mast which is rigidly supported but moveable both transversely and rotationally in fore and aft and lateral directions. Novel mast support arrangements are...
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3872933 |
SUSPENDING DEVICE
A chipping hammer is suspended in an obliquely downward directed arm that is swingable both laterally and vertically. The feed arm includes a reversible pneumatic jack whose piston rod is rotatable...
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3867989 |
PULLDOWN MECHANISM FOR ROTARY DRILL APPARATUS
A frame arranged to traverse a mast on a rotary drill apparatus for exerting an axial feed or pulldown force on a drill pipe and bit assembly and characterized by a pair of rotatable shafts each...
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3789932 |
VIBRO HAMMER POSITIONER
A positioner is disclosed herein for use on a vibrating hammer or vibro hammer. The vibro hammer is normally supported by a hoist line extending from a conventional crane. The positioner is secured...
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3780815 |
POWER TONG POSITIONING APPARATUS
Well pipe positioning apparatus having a vertically disposed column formed of a central web joined between two parallel flanges and provided with bearing units adapted to be mounted in a well...
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3768575 |
JOINT CONSTRUCTION FOR SECTIONAL LEAD
There is disclosed herein a sectional lead for a pile driver apparatus. The lead is of skeletal truss construction having parallel corner members providing front guideways for the pile driver and...
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3757874 |
DRILLING APPARATUS WITH MAST TILTING ABOUT UPPER PIVOT AXIS FIXED AGAINST HORIZONTAL TRANSLATION
A base has rails extending longitudinally thereof and a drilling machine assembly is mounted on the rails for displacement between a drilling position and a hoisting position, the drilling machine...
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3757873 |
ADJUSTABLE MAST FOR DRILLING ON HOISTING WITH RIGID STAY
A base has rails extending longitudinally in one direction and a drilling machine assembly is supported on the rails for movement in this direction between a forward drilling position and a...
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3754403 |
OFFSHORE MARINE STRUCTURE EMBODYING ANCHOR PILE MEANS
The invention relates to a buoyant marine structure as would be found, or is usable in a body of water which lies above a penetrable substratum. The structure is comprised of several operably...
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3751930 |
ARTICULATED MARINE STRUCTURE WITH PREPOSITIONED ANCHORING PILES
The invention relates to a marine structure for use in an offshore body of water where piling is required to hold the structure in place. It relates in particular to a floatable marine structure...
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3734204 |
DRILLING ATTACHMENT
In accordance with an illustrative embodiment of the present invention, a drilling attachment for use in conjunction with a crawler or a truck mounted crane includes a frame assembly pivoted at one...
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3734435 |
BOTTOM BRACE FOR HAMMER LEADS FRAME
A pile driving machine having a boom and a leads frame universally pivotally connected thereto adjacent the upper end thereof and a positioning and an adjustment securing frame having...
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3732935 |
GROUND ROD DRIVER
A device for driving ground rods of the type to be mounted on a suitable carriage or vehicle. A boom to engage ground rods as the rods are driven is attached to an adjustable horizonal beam. The...
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3712385 |
MOBILE DRILLING RIG HAVING ADJUSTABLE BOOM
The drilling rig comprises a boom, one end of which is arranged to be pivotally attached to the vehicle while the other end supports a drilling-head carrier arm tiltably mounted thereon. The...
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3695363 |
ROTARY SHAFT DRILLING APPARATUS
The apparatus has a frame and a carriage assembly. Hydraulic thrust cylinders are employed to raise and lower the carriage assembly relative to the frame. A rotary table supported by the carriage...
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3645343 |
ROTARY DRILLING MACHINE
A rotary drilling machine has first and second frames connected by rotary bearing means to rotate on a first axis perpendicular to the frames. A mast assembly is carried by the second frame and...
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3586113 |
DEMOLITION AND SCOOPING MACHINE
A demolition and scooping machine comprises a rigid supporting structure with a rotatable turntable mounted thereon. A clamp mechanism is provided for clamping the supporting structure to external...
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3507338 |
HOLE-FORMING AND POST-DRIVING APPARATUS
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3447613 |
COMBINED EARTH BORING AND POST DRIVING APPARATUS
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3400771 |
Mobile percussion unit
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3384186 |
Mobile hydraulic hammer
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3365004 |
Vehicle mounted pile driver with adjustable hammer guide
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3356163 |
Screw anchor installing method and apparatus
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3312291 |
Derricks
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3304033 |
Boom mounted drill support
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3302735 |
Rock drilling apparatus
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