Abstract: Invention relates to a pin for clamping a sleeve 1 moulded from rubber and having a crenellated cut, of which the teeth 7 and spaces 8 match one another, so that the sleeve can be closed over a tube to be protected, the said sleeve being of the type with an embedded metal carcass 6 and terminating with a loop 13 in each tooth 7.The pin 10 which makes it possible to clamp the sleeve by penetrating all the loops of the carcass is of a type with a trapezoidal shank and is characterized in that the point of its shank has a gland 22, and in that the edges of the shank on and at the rear of the gland are rounded and polished.The invention can be used particularly for clamping protectors serving for drilling or production in an underground deposit.

Abstract: A subsea system for transmitting a multiphase flow of hydrocarbons produced from a subsea well positioned remotely from fluid storing and treating facilities. The system includes a subsea well template which encloses a plurality of well heads. A composite hydrocarbon flow is manifolded from the respective wells and conducted to a fluid separator which causes the composite stream to separate into discrete liquid and vaporous flows. The latter are then conducted through a multi-conductor riser to the treating and storage facility.

Abstract: A tubing assembly is disclosed for providing fluid communication and wireline access from a tubing string through a tubing remnant extending above a packer set within a casing. In combination, the tubing assembly comprises a funnel guide connectable to the lower portion of the tubing string, and a packer connectable with the tubing string above the funnel guide for establishing a sealed zone within the casing extending from above the funnel guide to the tubing remnant packer. The funnel guide further comprises a body having a lower flared skirt adapted to receive thereinto an upper portion of the tubing remnant, a central bore extending through the body, and devices on an upper portion thereof for connection to the tubing string.

Abstract: A security and defense barrier which comprises a vault buried within and transverse to the roadway. The vault has within a latched plurality of barrier arms that may be raised by any powered means, or manually, and the raised barrier arms being positioned within the vault so that impact forces are transmitted directly to the vault, and to a foundation, and little or no load is supported by a pivoting mechanism. Being very strong, the barrier can be made capable of stopping a speeding vehicle. The raised barrier arms have a hook on the end so that a speeding vehicle attacking the barrier will be snagged, and prevented from inadvertently or intentionally vaulting the barrier.

Abstract: A cutting and recovery tool for a well-head, having a housing which is adapted to engage with a side wall of the well-head to lock them together, and a mandrel extending through the housing and rotatable relative to the housing and adapted to carry a radially-acting cutter which severs the well-head below the area of engagement of the housing. This allows the well-head to be severed and withdrawn in a single operation.

Abstract: A method for completion of an inclined or deviated well having an in-line opening on its lower side. A work string tubing is removed and a production tube having a slotted liner is directed through a gelled fluid. The gelled fluid is removed and an in-casing gravel pack is placed within said wellbore. Hydrocarbonaceous fluids are then produced from said wellbore.

Abstract: A forwardly opening cylindrical housing is mounted on the forward end of a wheeled frame coupled to the front of self-propelled prime mover and the rear of the housing includes a forwardly facing axial inlet and radial discharge rotor assembly mounted therein. The housing includes a tangential outlet for the rear end thereof aligned with the rotor assembly and the outlet has the inlet end of conduit means connected thereto for conveying large volumes of air having forage entrained therein to a remote bin into which the discharge end of the conduit opens. The forward end of the housing includes generally diametric stationary bar structure and a forward extension of the rotor shaft includes radial cutting blades spaced slightly axially from the stationary bar.

Abstract: A detachable roller for use on trucks that provides a portable multi-adjustable roller for compaction of material. The detachable roller has independently actuated roller control pistons that engage and disengage the roller to the compaction surface. The roller can adjust to uneven terrain by angular displacement of the roller's longitudinal axis support points.

Abstract: A continuing mining machine wherein a crusher is placed inboard of the machine and has a dipper machanism as well as a loading chute. The dipper is of a twin handle type so that it can straddle a feeder chute thus affording a wide area for excavating. The placement of the crusher in a central location within the machine allows for stability and obviates the need for swivelling of the crusher during operation of the machine.

Abstract: Windrow shaping apparatus which is attachable to an existing rake for shaping forage windrows. The apparatus includes an attachment member for affixing the apparatus to a rake; a yoke pivotally engaging the attachment member; and a drum for engaging the forage in the windrow. The yoke and drum are supported at a desired height above ground level and at an inward angle so that the drum engages the top and side portions of the windrow to force the forage down and toward the center of the windrow. The drum includes a plurality of parallel spaced rods about the periphery of the drum to prevent excessive compacting and to prevent adherence of the forage to the drum. A second embodiment of the invention includes two drums carried by separate yokes, the drums both being inwardly inclined toward one another and obliquely placed, one in front of the other so as to overlap for simultaneous shaping of the forage on each side of the windrow without compaction between drums.

Abstract: In the preferred and illustrated embodiment of the core sample bullet construction, a multi-piece construction is set forth. There is a forward, or removable, nose portion. It nests with and connects to a carrier portion. The two portions together define an elongate central bore formed in multiple portions, and the bore is open through the rear of the carrier. At the rear, a separate and removable bottom cap is plugged into the carrier portion and the two are joined together at the time of assembly, before firing. A release ring is included on the outer face of the nose portion and protects the shoulder of the carrier portion, engaging the formation upon entry, and is sacrifically abandoned; the ring is a mechanism for releasing the nose portion whereby retraction is easily obtained; the release ring includes drilling mud and debris relieving notches formed in the inside diameter.

Abstract: A roof-drilling system for use in subterranean mining applications and the like in which the drill head of a roof drilling machine is arranged such that the receiving cavity of its chuck is configured having lost motion association with the drive-in portion of starter and driver drill steel rods. The lower surface of a retainer fixed to the drill head and having a non-circular aperture formed therein serves to define one bearing surface for utilizing the drill head itself to pull the assemblage of drill steel from a completed bore. To remove the drill steel driver component from the drill head chuck, the miner grasps the lowermost portion and rotates it a relatively small amount. To provide for interlocking of various components of the drill steel, i.e.

Abstract: A ramp assembly provides loading of small off-the-road vehicles onto, and unloading of such vehicles from the bed of a pick-up truck. The assembly includes a flexible support such as a sheet of lightweight chain link, cloth belting or the like which is connected at the upper end to the corner posts of the truck bed or otherwise secured to the truck and which is tensioned at the other end thereof by an elongate support member, connected at one end to the ball hitch on the truck. The connection to the corner posts is made by notched members which extend laterally from both sides of the flexible support to engage the walls of the posts.

Abstract: A double-action belt intended for use with speed varying devices of the type having pulleys of variable diameter is constructed of many rigid trapezoidal elements that are articulated one to another at their bases. The rigid elements all have a central opening through which an elastic member extends. The rigid elements are strung in a closed loop along the elastic member with each element being held captive by the stretchable elastic member. The sides of the rigid trapezoidal elements which are opposite the articulated base carry protruding flanges. Those protruding flanges abut when the rigid elements are pressed together and cause the central portions of contiguous rigid elements to be spaced apart to accommodate those segments of the elastic member situated between contiguous rigid elements.

Abstract: A method and apparatus are provided for constructing a deep essentially horizontal borehole in the earth, as for the installation of a pipeline in Arctic offshore waters. This directional drilling technique eliminates exposure of an Arctic offshore pipeline to ice gouging and minimizes the hazards associated with unstable permafrost. Means are provided for gripping inside a borehole in order to apply thrust to a drill bit utilized to drill the borehole which is to contain the pipeline.

Abstract: An improved construction of a movable bridge structure which comprises a plurality of segment block means consisting of at least one self-propelled block means and at least one non-propelled block means adapted to be coupled releasably with the adjacent self-propelled block means, and translating means adapted to have the non-propelled block translated onto and out of the adjacent self-propelled block means.

Abstract: A diamond cutting tooth for use in a petroleum drag bit is provided with an extended and expanded effective diamond cutting surface by providing a linear sequence of triangular prismatic, synthetic, polycrystalline, diamond cutting elements generally along the line of direction of cutting within each tooth. Each element is offset from the preceding element in the sequence in a direction nonparallel to the line of cutting. More particularly, equilateral triangular prismatic diamond elements are laid within a V-shaped groove within a mold from which the cutting tooth is molded through conventional infiltration matrix techniques. The apical opening of the groove is 70 degrees, whereas the apical extent of each of the triangular apexes is 60 degrees. Each triangular element is laid on one side or other of the longitudinal groove.

Abstract: The cable head provides an H.sub.2 S resistant assembly which includes a weak link therein substantially isolated from any stress other than tensile stress induced by the logging cable. The cable head also provides a fishing neck at the top of the tool string after the weak link is severed and the wireline retrieved. Moreover, the logging cable is positively secured to the cable head by a force-fit wedge, and the design thereof ensures that parting of the weak link also provides for a positive mechanical disengagement of the logging cable from the cable head. Finally, an external sinker bar has been provided which mounts externally of the cable head, surrounding the logging cable above the cable head and mechanically interlocking therewith; such sinker bars may be run above the cable head in series, each interlocking with the one below it.

Abstract: A dual string packer is milled by a mill having an annular milling shoe for milling the periphery of the packer and freeing it from the well bore. An axial milling head mills a central hole in the top of the packer before the annular shoe reaches the locking segments. A grapple above the milling head engages the walls of the axial hole to support the remains of the packer in the well. The grapple includes a release ring that can be broken in tension to release the packer mill from a stuck packer if need be. The grapple has a gripper sleeve with longitudinally extending fingers and a camming sleeve for camming the fingers outwardly. An expandable ring inside the camming sleeve provides means for withdrawing the camming sleeve from the gripper sleeve if it should stick.

Abstract: A drilling tool for percussion drilling machines is proposed which has an increased endurance strength or fatigue strength when used in percussion drilling machines having a high striking speed. For this purpose, the carbide cutting tip (11) is arranged transversely to the flute runout (12, 13) so that the effective moment of resistance area in the area of the groove root (22) of the recessed groove (14) is not weakened by flute runout surfaces.