Abstract: A flexible tubing having a PEX inner core is surrounded by a reinforcing structure, such as a braid. The reinforced flexible tubing meets NFPA Standards for the Installation of Sprinler Systems (13/13R/13D) in both residential and commercial buildings. The reinforced flexible tubing is suitable for a variety of other high temperature/high pressure applications. The tube's flexible characteristics facilitate its installation at a greatly reduced cost, especially in retrofitting existing structures. An adhesive can be used to improve the overall strength and stability of the reinforcing structure surrounding the PEX core. Optionally, a protective outer layer can be applied over the reinforcing structure.

Abstract: A velvet ribbon with double-sided nap is produced by weaving three superimposed webs (8, 10, 12) connected to each other by nap threads (14). The nap threads (14) of the above triple web are separated between the middle web (8) and a first web (10) in a first cutting device (36, 36a). In a second cutting device (46, 46a) the nap threads between the middle web (8) and the second web (12) are separated to give the middle web as a double-sided velvet ribbon (8). The corresponding ribbon weaving machine (2) comprises three superimposed weaving points (31) each with a weft introduction body and a common shedding device (16). A first cutting device (36) for cutting the nap threads (14a) between the middle web (8) and a first web (12) and a second cutting device (46) for cutting the nap threads (14b) between the middle web (8) and the second web (10) are provided afterwards. The velvet ribbon (8) produced thus has a nap (56, 58) on both sides.

Abstract: A through-air-drying (TAD) fabric for producing tissue paper and related products on a papermaking machine comprising a plurality of warp yarns interwoven with a plurality of weft yarns to produce warp and weft knuckles on a paper-side surface of the fabric, preferably to form an L-shaped knuckle pattern.

Abstract: A pressurized actuator system for independent deployment of at least two inflatable structures having a first primary section adapted for deployment of a primary inflatable structure and second section for deployment of a secondary inflatable structure and an auxiliary source of pressurized fluid for operating said device. A control assembly for controlling a flow of pressurized fluid from the auxiliary source of pressurized into the second system is provided. Thus, the system assures independent deployment of the primary and secondary inflatable structures.

Abstract: A protective cover for a filler neck is designed to discriminate between different sizes of fuel nozzles. The cover includes a body portion and a movable door that covers and exposes an opening in the filler neck. The body portion has a pair of spaced body protrusions that form a gate, and the door has a ledge that may also be formed by a pair of spaced door protrusions. The protrusions on the door can be easily moved to an open position by pressing a tip of a fuel nozzle against the protrusions. The gate and the ledge are configured so that they can accommodate the fuel nozzle for only one type of fuel.

Abstract: A glass filler defines a main body having a lower surface. An inlet and outlet are each defined in the lower surface of the main body. An outlet chamber is defined in the main body and contains an outlet valve, which includes an outlet valve housing defining a castellated edge. The outlet valve includes a cylindrical sleeve that defines an inner surface that is crenellated and configured to receive an implement that can be inserted and used by the operator to rotate the cylindrical sleeve in a manner that controls the amount of liquid exiting the outlet of the glass filler.

Abstract: The woodworking machine for shaping molding has a hollow cylindrical cartridge with end caps having openings defined therein adapted for inserting a blank strip of molding through the cartridge. Robotic grippers advance the molding strip through the cartridge in indexed increments. A cutter assembly is mounted on a movable table, the cutter assembly having a plurality of spaced apart cutters. An electronic control system, preferably including a programmable logic controller, causes the grippers to grip the blank molding, insert the blank through the cartridge, actuate the cutter assembly and move the table so that the cutters simultaneously cut a plurality of notches in the molding, retract the cutter assembly, advance the molding the indexed distance, and automatically repeat the cycle, ejecting the strip when notches have been formed in the entire length of the molding. The machine may be used to form dental molding.

Abstract: A towing arrangement includes a pivotal handle which allows a user to position the handle more comfortably that would otherwise be possible with a conventional towing arrangement. The relative motion of the handle can also increase the maneuverability of a piece of luggage by eliminating the need for a person to reposition his or her hand on the handle when attempting to redirect the piece of luggage.

Abstract: A lid sealing machine includes a casing attached to a housing, a sealing device disposed in the casing, a container holder for supporting and moving containers into and out of the casing, a supply reel, a take up reel and a roller rotatably attached onto the housing for supporting a film material and for transmitting the film material from the supply reel around the roller and to the take up reel, and for moving the film material between the sealing device and the container holder, and for allowing the film material to be forced to seal the containers by the sealing device. A detecting device may be used for detecting a rotating movement of the roller and a movement of the film material relative to the housing.

Abstract: A target assembly including a plurality of target tiles bonded to a backing plate by adhesive, for example of indium or conductive polymer, filled into recesses in the backing plate formed beneath each of the target tiles. A sole peripheral recess formed as a rectangular close band may be formed inside the tile periphery. Additional recesses may be formed inside the peripheral recess, preferably symmetrically arranged about perpendicular bisectors of rectangular tiles. The depth and width of the recesses may be varied to control the amount of stress and the stress direction.

Abstract: An ultrasonic sealer comprising a hollow shaft (1) having a longitudinal axis (2) and being rotatably arranged in a housing (3) for driven rotation about its longitudinal axis (2). The rotary sealer further comprises a sealing horn (8) arranged coaxially in the hollow shaft (1) and connected to a converter (6) and preferably also a booster (7). The horn (8) is provided with a peripheral sealing area (13) outside an axial end (13) of the hollow shaft (1). The horn (8) is connected to the hollow shaft (1) by means of at least one annular, metallic support (11) extending between an outer face (14) of the horn (8) and an inner face (10) of the hollow shaft (1). The at least one annular support (11) is corrugated in cross section such that at least two grooves and one ridge arranged there between are provided between the inner face (10) of the hollow shaft (1) and the outer face (14) of the horn (8).

Abstract: A rectangular substrate dividing apparatus, which can divide a rectangular substrate in a smaller space, accommodate devices, formed as individual pieces by the division, into device cases, and pick up the devices reliably and efficiently from a protective tape affixed to the back of the rectangular substrate, is provided. This apparatus separates a rectangular substrate, to whose back a protective tape is affixed and on which a plurality of devices are partitioned by a lattice of scheduled-separation lines, along the scheduled-separation lines to divide the rectangular substrate into the individual devices, and accommodates the devices in device cases. In a cutting-responsible region, the rectangular substrate is carried out of cassettes, cut by a cutter, and then cleaned by a cleaner. In a tape peeling-responsible region, the devices are picked up with the protective tape being peeled off. In a device accommodation-responsible region, the picked-up individual devices are accommodated into device cases.

Abstract: A control mechanism for a cordless blind includes a transmission unit, a scrolling unit and a tilt unit. The transmission unit has a transmission cable which is connected with a scrolling rod. The scrolling unit includes two scrolling cables which have respective one of two ends thereof wrapped to two ends of the rod, and the other end of each scrolling cables extends through the top rail, extends through parallel slats and is connected to a bottom rail. The tilt unit includes a tilt member with two tilt cables connected to two ends thereof the tilt member, the other end of the tilt cable extend through the top rail and are connected to the parallel slats. A tilt wand is used to rotate the tilt member to move the tilt cables moved upward and downward so as to tilt the slats.

Abstract: A system is provided for the holding of a membrane in tension, that system having: a frame; a plurality of frame members with longitudinal anchoring channels, the channels having first and second channel flanges. Also provided is a retention strip disposed upon at least a part of the periphery of the membrane, wherein the retention strip engages the first and second channel flanges.

Abstract: The invention provides a method for manufacturing a powertrain component enclosure member, including the steps of: (A) positioning at least one insert into a mold, wherein the insert is provided with a coating to prevent bonding between the insert and the casting material; and (B) casting a wall of the powertrain component enclosure member in the mold around the insert such that a major portion of the insert is substantially non-bonded with the casting material to provide a proper interfacial boundary with the casting material for damping.

Abstract: A heat sink clip (100) includes a spring member (10), a moveable locking member (20) and an actuating member (30). The spring member includes an elongated main body (11) and a first locking leg (14) connecting at one end of the main body. The locking member is coupled at the other end of the main body, including an engaging plate (22) and a second locking leg (26) extending from the engaging plate. The actuating member includes a handle (32) and an extension portion (34) formed at one end of the handle. The handle and the extension portion form an angle therebetween. The extension portion is operatively engageable with the engaging plate of the locking member.

Abstract: A regulating heat exchange and cooling method and system for monitoring and controlling the temperatures of walls subjected to high temperatures. The system is used to cool the inner wall of a thermal system having a double wall, the inner wall being subjected to temperatures equal to or greater than the physical capacity thereof. The system includes a network of tubes which is independent of the thermal system to be cooled. The tubes contain pressurized cooling water which circulates therethrough. The tubes have nozzles which spray and project water in the form of solid cones against the inner wall, the nozzles being controlled by adjustable-flow valves. The network of tubes forms an integral part of the outer wall of the thermal system to be cooled and the system also includes elements for maintaining the water projection area defined by the inner and outer walls in a vacuum condition.

Abstract: Three embodiments of a heat exchanger assembly for cooling an electronic device are shown respectively in FIGS. 1-2, 3 and 4 and each comprises a flange, a dome, a plurality of condensing tubes, a shroud, and a boiler plate. In the first embodiment shown in FIG. 1, the dome is semi-spherical in shape and the distance measured axially along the center axis equals the distance measured laterally from or perpendicular to the center axis. In the second and third embodiments shown in FIGS. 3 and, 4, respectively, the distance measured axially along the center axis is greater than the distance measured laterally from or perpendicular to the center axis. The domes in the second and third embodiments are an ellipsoid and a semi-logarithmic body, respectively. In all embodiments, a plurality of condensing tubes aligned in fan rows and arced rows extend from the dome to distal ends to facilitate more-efficient heat transfer.

Abstract: A recuperator for transferring thermal energy from a warm gas flow to a cold gas flow, comprising: a first group of ducts with a first connection and a second connection; a second group of ducts with a third connection and a fourth connection, wherein the ducts of both groups extend mutually parallel; a first supply for supplying the cold gas flow to the first connection; a first discharge for discharging the cold gas flow from the second connection; a second supply for supplying the warm gas flow to the third connection; and a second discharge for discharging the warm gas flow from the fourth connection. The device provides temporarily and repeatedly alternating connections from the first supply to the fourth connection; the first discharge to the third connection; the second supply to the second connection; and the second discharge to the first connection.

Abstract: A connector is made up downhole and can connect electrical signal or power circuits. The male component features one or more circumferential bands on the exterior and the female component features like bands on its interior. The bands are preferably covered with removable sleeves until the connection is made up. In the preferred embodiment, the sleeves push each other out of the way as the connection is made up. The bands are preferably cylindrically shaped on their respective supporting connection half to make easy and reliable contact when the connection halves are advanced together without need for rotation to get the desired contact. Seals surround the connected contacts after makeup to keep out well fluids.

Abstract: Equipment for oil recovery can include three systems: a steam system, a carbon dioxide system and a nitrogen system. The three systems can include one or more of a steam pressure regulator, a steam thermometer, a steam pressure gauge, a steam flowmeter, a carbon dioxide pressure regulator, a carbon dioxide compressor, a carbon dioxide thermometer, a carbon dioxide pressure gauge, a nitrogen compressor, a nitrogen pressure regulator, a nitrogen thermometer, a nitrogen pressure gauge, assembled valves, a gas injection tube and a chemical agent valve. The three systems can be connected into a heavy oil well via the assembled valves, the gas injection tube and a down-hole tube. The equipment can integrate three pressurizing and metering systems of steam, carbon dioxide and nitrogen together. With the equipment, one, two or three of the gases may be injected into oil wells to achieve favorable results of output increase.

Abstract: A fixed-point packoff element for a full-bore pressure isolation tool supports a primary seal and a test seal to permit the primary seal to be tested by injecting test fluid through a side port of a tubing head spool before the pressure isolation tool is rigged up for a well stimulation procedure.

Abstract: In one aspect of the invention a valve that operates in association with a downhole screen is threaded into the wall of a base pipe after being inserted through a saddle. When the valve body is threaded in, the engagement into the wall threads in the base pipe acts as a sealing force on a ring seal between the saddle and the base pipe and between the valve body and the saddle. The valve itself can be outfitted with a cover with openings that can be integral or removable and disposed at the end of the valve that is innermost to the base pipe. Preferably a series of elongated slots are used that can catch slurry if the well is to be killed while allowing subsequent production to drive the accumulated solids from well killing back into the base pipe. Another feature places the valve in a base pipe opening under a cylindrical screen section to reduce assembly time and cost of constructing an adjacent housing to one side of the cylindrical screen section to accommodate the valve.

Abstract: For extracting a liquid (such as oil) from a porous medium, the liquid is subjected to pulses that propagate through the liquid flowing through the pores of the medium. The pulses cause momentary surges in the velocity of the liquid, which keeps the pores open. The pulses can be generated in the production well, or in a separate excitation well. If the pulses travel with the liquid, the velocity of travel of the liquid through the pores can be increased. The solid matrix is kept stationary, and the pulses move through the liquid. The pulses in the liquid can be generated directly in the liquid, or indirectly in the liquid via a localized area of the solid matrix.

Abstract: A sensor assembly that responds to temperature of fluids within an annulus formed by an outer surface of a borehole instrument and the wall of a borehole. The sensor assembly is removably installed preferably in the wall of the borehole instrument. Installation and removal are from outside of the borehole instrument thus eliminating the need to disassemble the borehole instrument. The sensor assembly comprises a temperature transducer that is hermetically sealed within a housing designed to obtain maximum thermal exposure of the transducer. Power to the temperature transducer is supplied from a separate electronics package in the borehole instrument through a rotary connector within the sensor housing.

Abstract: A method of creating multiple fractures in a well traversing a formation is described using pressurized fluids in a highly deviated or horizontal section of the well at a pressure above the fracturing pressure of the formation, wherein for creating a fracture the pressurized fluid is alternated between an acid fracturing fluid and a proppant loaded fluid, such that the proppant blocks the flow of pressurized fluid into a fracture created during a previous step of the method and the subsequently pressurized acid fracturing fluid creates a new fracture at a location along the highly deviated or horizontal section different from the location of the previously created fracture.

Abstract: The present invention is a material and method that enables creation of an in situ pumping action within a matrix or otherwise porous media. This pumping action may be used to move materials, namely fluids, through the matrix or porous media to a gathering point. This pumping action may also be used as a vibrational source, using the movement of the matrix itself as the radiator of vibrational, typically acoustic, energy. This vibrational energy may be used for a variety of purposes.

Abstract: Disclosed herein is a downhole cutting tool. The downhole cutting tool including, a cutting member mounted on a rotatable shaft, a shaft-deflecting device in operable communication with the shaft, and a motor in operable communication with the shaft.

Abstract: A gel-forming composition for reducing the permeability of a subterranean formation or zone comprising a water soluble polymer (e.g., Alcoflood® 935) and a polyelectrolyte gelling agent comprising a polycation (e.g., polyalkylene imine) and a polyanion (e.g., dextran sulfate) is provided. The gel-forming composition is used to delay gelation in the subterranean formation.

Abstract: Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. A pressure in the majority of the section may be maintained below a fracture pressure of the formation. The pressure in the majority of the section may be reduced to a selected pressure after the average temperature reaches a temperature that is above 240° C. and is at or below pyrolysis temperatures of hydrocarbons in the section. At least some hydrocarbon fluids may be produced from the formation.

Abstract: A flushing device (20) comprising an inner sleeve (21), axially slidable relative to an outer sleeve (23). The inner (21) and outer (23) sleeves cooperate to define an inner passage (32) for the flow of a fluid, and are permanently coupled such that there is substantially no rotational movement between the two sleeves. The inner passage (32) has an inlet (22b) and an outlet (22a). The outer sleeve (23) has a plurality of flushing outlets (33) which, when the flushing device (20) is in an open condition allow fluid to be diverted from the inner passage (32). The flushing device (20) also comprises an indexing mechanism (80) which indexes between a first position, wherein the plurality of flushing outlets (33) are blocked from the internal passage (32) such that the flushing device (20) is in a closed condition, to a second position, wherein the plurality of flushing outlets (33) register with the internal passage (32) such that the flushing device (20) is in the open condition.

Abstract: A safety valve with a flapper/flow tube friction reducer. A safety valve for use in a subterranean well includes a closure assembly, an operating member which engages the closure assembly, and at least one of the closure assembly and the operating member including a friction reducing device which provides rolling contact between the closure assembly and the operating member. Another safety valve includes a flapper which rotates about a pivot relative to a seat, a flow tube which engages the flapper to rotate the flapper, and a friction reducing device which with rolling contact biases the flow tube toward the pivot when the flow tube engages the flapper. Yet another safety valve is described in which at least one of the flapper, the seat and the flow tube has a friction reducing device attached thereto which provides rolling contact between the flapper and the flow tube, or between the flow tube and the seat.

Abstract: A drilling rig device (1) situated on the seabed (11), where the drilling rig (1) is sealingly enclosed against the surroundings, wherein the drilling rig (1) is liquid-filled and provided with a separator (16) arranged to separate material (17) from the liquid.

Abstract: The present invention relates generally to a method and means of collecting oil from a reservoir overlying a water aquifer or basement rock using a manned tunnel. A manned tunnel is used as a physical barrier to intercept oil and water flowing downward along a formation dip and to preferentially collect the oil or the water through a series of collector stations. This method can be used for oil spill clean-ups or for hydrocarbon recovery in appropriate reservoirs.

Abstract: A method for producing gas from a well with low pressure involves running a bottom hole pressure test to graph a P-Q curve. The operator computes a frictional pressure drop due to friction of the gas flowing through the production tubing to the surface. A packer is set above perforations in the well. A screw pump is selected that has a capacity equal to the sum of the frictional pressure drop plus a desired wellhead pressure. The screw pump has a flow rate capacity determined from the P-Q curve. The operator may vary the frequency of a downhole motor to achieve the desired wellhead pressure.

Abstract: A fluid loss control system having a loss control valve and a plurality of zones including an isolation assembly disposed in a wellbore and a string having a stinger at a downhole most end thereof. The string is supportive of a moveable seal at a selected position uphole of the stinger, the position being calculated to cause engagement of the seal with the isolation assembly and to position the moveable seal to facilitate fluid-flow around the seal when the stinger is engaged with a seal bore of one of the plurality of zones. A method for controlling fluid loss including isolating a fluid column uphole of a pressure seal spaced from the lower completion, opening a fluid loss control valve, stabbing a stinger into a seal bore of the lower completion, and positioning the seal to facilitate fluid flow therearound.

Abstract: Apparatuses for restricting fluid flow through a well conduit comprise a housing having a longitudinal bore and a seat disposed within the bore. The seat has a first position when the apparatus is in the run-in position and a second position when the apparatus is in the set position. The seat comprises an arcuate member comprising a plurality of slits defining a plurality of segment members having a gap there-between. Each of the gaps are variable such that movement of segment members inwardly causes the gaps to be narrowed or closed off completely when a plug element is disposed into the bore and landed on the arcuate member to move the arcuate member from the first position to the second position, causing restriction of fluid flow through the bore and the well conduit.

Abstract: A screen that conforms to the borehole shape after expansion is disclosed. The screen comprises a compliant outer layer that takes the borehole shape on expansion. The outer layer is formed having holes to permit production flow. The material that is selected preferably swells with prolonged contact to well fluids to further close off annular gaps after expansion. In an alternative embodiment, the screen is not expanded and the swelling of the material alone closes off annular gaps. The outer sleeve is placed over the screen and the screen is placed on a base pipe and initially expanded from within the base pipe to secure the components of the screen assembly for running downhole, while minimizing or eliminating any welding among the layers. A variety of expansion tools can be used to expand the screen or screens downhole.

Abstract: A valve for a well pipe, the valve having the following parts: a valve collar connectable to the well pipe; an index piston coaxially positioned within the valve collar for longitudinal translation within the valve collar between closed, flow-open, and locked-open configurations; a detent in the index piston, wherein the detent restricts fluid flow in a circulation direction through a flow path through the index piston; a spring that biases the index piston toward the closed and locked-open configurations; and a plug of the valve collar that mechanically communicates with the index piston to be in corresponding closed, flow-open, and locked-open configurations.

Abstract: The invention relates to fire-fighting installation comprising a drive source for feeding medium into at least one heat releasing spray head (4), the drive source comprising a pump unit (5) for feeding liquid into said spray head through a supply line (3) which is filled with gas to a standby pressure, a gas source (9) for maintaining the standby pressure, and a sensor (2) arranged to provide a signal for starting the pump unit in response to a change occurring in the state of the medium in the supply line. In order to rapidly start the pump unit (5) of the drive source as a result of a minor flow occurring in the supply line (3) and in order for the fire-fighting installation to be applicable to be used at low temperatures, the sensor is a flow transducer (2) arranged to provide a signal to the pump unit (5), if the flow of gas in said portion of the supply line exceeds a certain predetermined value.

Abstract: A preassembled water transfer pipe for use in a fire fighting system includes a generally hollow conduit member formed from a predetermined material and having each of a predetermined length and a predetermined cross sectional shape and a connection member equipped with a predetermined size connection for receiving a hose one of thereon and therein disposed at one end of said generally hollow conduit member. There is a pipe support assembly disposed at an opposed end of such generally hollow conduit member.

Abstract: A fire-fighting monitor includes a housing, a nozzle coupler, and a pivot joint coupler comprising an internal passageway and a pivot member. The pivot member is pivotally mounted to the housing at the outlet of the housing. The nozzle coupler is mounted to the pivot joint coupler wherein the internal passageway of the pivot joint coupler is in communication with the internal passageways of the housing and the nozzle coupler, wherein the weight at the nozzle coupler generates a gravitational moment about the pivot axis. In addition, the nozzle coupler has a central axis defining a reference line, which is offset from the first pivot axis wherein a reaction force generated by fluid flowing through the nozzle coupler generates a moment about the first pivot axis in a direction opposed from said gravitational moment.

Abstract: A truck (1) for a railroad rehabilitation machine comprises a railway truck (3) and a tank (2) resting on the railway truck (3) in a removable manner. The tank (2) comprises a holding structure (5) extending along a predetermined direction (X), at least one first conveyor (8) mounted within the holding structure (5) to transport incoherent material along the predetermined direction (X) internally of the holding structure (5), and an element (22) for laying the holding structure (5) on the truck (3) for railway transport. A process for making a truck for a railway rehabilitation machine comprises the steps of arranging a railway truck (3) having a support platform (4), arranging a tank (2) for trucks of railroad rehabilitation machines in accordance with the invention and laying the tank (2) on the platform (4) of the railway truck (3) in a removable manner.

Abstract: A walk-behind power unit is configured to detachably mount a counter-rotating powered drum work implement on a centrally pivoted implement carrier. The pivoting of the implement carrier from a central position to either side causes the discharge of the powered drum to be located on a desired side of the work implement. The work implement can also be positioned to discharge forwardly from the powered drum member. A lift apparatus is provided to be cooperable with an associated set of support wheels to affect the positioning of the powered drum member between a lowered operative position and a raised transport position. The powered, counter-rotating drum member can be either a rotatable broom or a power rake. In the broom configuration, the lift apparatus can move the lid member, after first unlatching the lid member from the frame of the work implement, to fix the lid in an opened position.

Abstract: A folding marker for connection to an agricultural implement toolbar with a marker shoulder pivot, an inner arm and a double acting hydraulic cylinder both pivotally connected to the shoulder pivot. A middle arm bracket is pivotally connected to the inner arm and the cylinder. A middle arm is connected to the middle arm bracket, with two beams extending from the bracket and terminating at an outer arm pivot, with a third beam connected between the bracket and a crossbrace. An outer arm pivot bracket is pivotally connected to the outer arm pivot, an outer arm connected thereto and having two legs connected between the outer arm pivot bracket and a plate assembly. The legs define a channel therebetween, and an adjustable arm is slidably connected within the channel. An extension element is insertable within the channel and lockable with the plate assembly, with a marking element connected thereto.

Abstract: A walk-behind working machine includes a first clutch mechanism for connecting or disconnecting drive between an engine and a working member of the working machine. The first clutch mechanism includes a first clutch lever having a first activating member. A second clutch mechanism is configured to connect or disconnect drive between the engine and traveling members of the working machine. The second clutch mechanism includes a second clutch lever having a second activating member. A throttle regulating mechanism has a pivoting member for engagement with one of the first activating member of the first clutch mechanism and the second activating member of the second clutch mechanism so as to undergo pivotal movement to shift a throttle for the engine from a first opened position in which an idling engine speed is produced to a second opened position in which a working-machine-activating engine speed is produced.

Abstract: The invention relates to a method for correcting positioning errors in rock drilling, and a rock drilling equipment. Deviation of the boom position from the theoretical position is measured as a function of the position of at least one boom joint, the measured deviations are stored in the memory of the drilling rig, and when the boom is positioned to the drilling position, its position is corrected on the basis of the stored deviation. The drilling equipment includes a memory for storing the deviations between the true position of the boom and the theoretical position calculated on the basis of the joint sensor values, and a calculating device for correcting the boom position on the basis of the deviations stored in the memory of the drilling rig.

Abstract: A power tool transmission is described in which an overload clutch mechanism is arranged to provide a relatively compact power tool. A torque adjustment dial is arranged between the visible portions of the motor housing and the gearbox, and the dial is coupled to a compression spring such that rotation of the dial cause the spring to be compressed or decompressed, thereby adjusting the torque at which the clutch overloads and ratchets. The compression spring is arranged at least partially between the motor and gearbox or gear train, in a space which conventional power tools do not utilized for this purpose. Thus, the dimensions of the power tool's transmission can be reduced with respect to conventional power tools. Furthermore, the space on the gearbox immediately behind a chuck can be used for another purpose other than accommodating the adjustment collar, as is the case with conventional power tools.

Abstract: A transport floor connected to the transport watercraft. An elevated drilling floor integrally connected to the transport floor; supporting a derrick comprising at least two rails for supporting a traveling top drive supported by a crown block. The crown block is connected to the derrick. The elevated drilling floor has a control panel comprising a power throttle for operating the top drive.

Abstract: Methods and apparatuses associated with a rotary driven well drilling rig. One method includes providing a rig having: an erectable mast; a head drive unit for rotatably driving drill pipes into a surface; a pumping unit to deliver a fluid through a drill pipe secured to the head drive, the fluid being forced out a bottom end of the drill pipe and up to the surface along the outside of the drill pipe during a borehole drilling operation; and a deck unit pivotally mounted on a turret attached to a set of tracks. This method embodiment includes, while the rig is in a first location, performing a first borehole drilling operation to form a first borehole at a second location; and performing a second borehole drilling operation to form a second borehole at a third location while the rig remains in the first location.