905results about "Propulsion" patented technology

A surgical robotic system includes a robotic arm, an end effector movably connected thereto and provided with a movable end effector element driven by an actuator, and a force sensor arranged between the robotic arm and the end effector. The actuator is formed by a hydraulic cylinder. The robotic arm is provided with a hydraulic line connected to said hydraulic cylinder of the end effector.

A hauling shroud, a cable termination and methods of hauling a fibre optic cable with a pre-connected optic termination along a conduit. The hauling shroud protects the optic termination when being hauled along the conduit. The hauling shroud includes a first housing member and a second housing member such that the first housing member and the second housing member can be joined together to enclose the optic termination. At least one anchoring member is used, for example, connecting pins, such that at least one strengthening element of the fibre optic cable engages with the anchoring member inside an internal cavity formed within the hauling shroud. Alternatively, at least two strengthening elements of the fibre optic cable are attached together to form a loop which engages with the at least one anchoring member, e.g., the connecting pins. This prevents any hauling forces from being applied to the optic termination.

Pulling grip housing assemblies for a fiber optic assembly are disclosed. In one embodiment, the pulling grip assembly is comprised of a pulling grip housing for receiving part of a fiber optic assembly. A pulling grip sleeve is also provided. The pulling grip sleeve has at least one sleeve locking feature suitable for cooperating with a housing locking feature of the pulling grip housing to secure the pulling grip housing to the pulling grip sleeve. In this manner, the pulling grip housing can easily be secured to the pulling grip sleeve and removed when pulling of a fiber optic assembly is completed. The pulling grip housing and pulling grip sleeve can also be reused for pulling other fiber optic assemblies.

A blowing head for a blown fibre installation, the blowing head including a buckling detector in the transmission line being installed and decreasing the drive forces applied to the transmission line, preventing mechanical damage occurring to the transmission line.

A rod having an embedded optical fibre has a stiff composite outer layer (10) to make the rod self straightening to enable it to be pushed into a pipe or borehole from a spool. This can help enable a reduction of friction between rod and conduit and can enable longer reach. A barrier layer is provided to separate the fibre from the composite layer. The rod can be retrieved after use. The rod can be narrow enough to enable normal flow along the pipe or borehole, and can be injected and retrieved even when the pipe or borehole is pressurised. The fibre can be used for remote sensing of conditions along the conduit. Other tools can be inserted by the rod during the intervention.

A device and method for clamping and pulling an elongated item such as a wire or cable through a path such as in a conduit for a main body with a bore, and inwardly directed pivoting teeth. The teeth are arranged in circular bands. The end of the item is gripped after insertion of the item, and is cut off and ejected when the pulling is completed.

The invention relates to coal mining equipment and specially, relates to a high-efficiency blocking coal shovel. The high-efficiency blocking coal shovel comprises a shovel body. The shovel body comprises a frame. The high-efficiency blocking coal shovel also comprises an impulsion shovel mechanism. The impulsion shovel mechanism comprises a shovel head and an impulsion device. The shovel head comprises shovel teeth and a fixing part. The shovel teeth are installed on the fixing part. A rear part of the fixing part is provided with an impulsion stroke guiding mechanism. The impulsion stroke guiding mechanism is sildingly connected to a guiding sleeve. The guiding sleeve is arranged on the impulsion device and / or the frame. The impulsion device impacts the impulsion stroke guiding mechanism. Only through one impulsion process, the shovel head can complete both coal falling and surface cleaning. The impulsion shovel mechanism is arranged on the shovel body. The shovel body drives the whole high-efficiency blocking coal shovel to walk. Coal mined by the high-efficiency blocking coal shovel is not broken fully. The high-efficiency blocking coal shovel has a high blocking rate and low power consumption, produces a small quantity of coal dust, provides a good work environment, realizes continuous coal mining, synchronously completes both coal falling and surface cleaning, and saves a mass of energy.

A technique for installing a length of cable assembly and coiled tubing includes application of both compressive and tensile forces on the cable assembly. The compressive forces are applied to the cable assembly in a compression station at an entry end of the coiled tubing. Tensile forces are applied to the cable assembly by a wire line or a similar structure situated at an exit end of the coiled tubing. Following installation of the cable assembly in the coiled tubing, the coiled tubing may be transported to an application site, and coupled to equipment, such as a submersible pumping system. The submersible pumping system may then be deployed by extension of the coiled tubing and cable assembly. Additional lengths may be obtained by joining subassemblies formed by the tensile and compressive force technique. The technique reduces residual elongation or strain in the cable assembly as compared to conventional methods.

The present invention relates to a coal mine underground continuous excavating machine. Its main mechanism includes the following several portions: main machine frame, rear machine frame, cutting mechanism, scooping plate mechanism, conveying mechanism, dust-removing mechanism, traveling mechanism, driving mechanism, hydraulic mechanism, electric control circuit and stable mechanism. Said invention also provides the connection mode of all the above-mentioned portions, and also provides the working principle of said excavating machine and its operation method.

An autonomous subsurface drilling device has spaced-apart forward and rearward “feet” sections coupled to an axial thruster mechanism between them to operate using an inchworm method of mobility. In one embodiment, forward and rearward drill sections are carried on forward and rearward “feet” sections for drilling into material in the borehole in both forward and rearward directions, to allow the device to maneuver in any direction underground. In another embodiment, a front drill section has a drill head for cutting into the borehole and conveying cuttings through a center spine tube to an on-board depository for the cuttings. The feet sections of the device employ a foot scroll drive unit to provide radial thrust and synchronous motion to the feet for gripping the borehole wall. The axial thrust mechanism has a tandem set of thrusters in which the second thruster is used to provide the thrust needed for drilling, but not walking. A steering mechanism composed of concentric inner and outer eccentric rings provided with the rearward feet section allow small corrections in both direction and magnitude to the drilling direction as drilling commences.

A system includes a duct, a pressurized fluid source, and a valve. The duct receives one or more cables and the pressurized fluid source couples to a first end of the duct and produces fluid pressure within the duct. The valve couples to a second end of the duct and is closed for a time to build pressure within the duct, and then opened to permit the fluid under pressure within the duct to escape rapidly from the duct and propel the one or more cables through the duct.

An apparatus includes a frame having a drive shaft mounting portion, a power tool restraint portion, and an adjustable forearm portion, wherein the power tool restraint portion is adapted to register a portable rotary power tool with the frame. A drive shaft is mounted with the frame in the drive shaft mounting portion, wherein the drive shaft is sized to be coupled with a rotary output of the power tool. A mounting bracket having arms ending in angled arm ends to facilitate the use of the apparatus in confined spaces is adjustably mounted to the forearm portion. An adapter set includes at least two adapters of differing sizes that may be removably attached to the mounting bracket and used to supply a force to the structure through which the line is being pulled that opposes the force on the structure produced by the line itself, thus stabilizing the structure.

An extraction device, particularly for mining, having two drive stations and a drive chain which extends between the sprockets thereof. So that hanging chain or chain wear to a conveyor chain, in the case of a conveyor device, or to a plow chain, in the case of a plow device, can be detected, magnetic sensor units for detecting at least one chain condition of the drive chain are provided, wherein each sensor unit includes a transmitter, which is formed by a static or dynamic magnetic field generator, and a detector field, which is provided with a plurality of magnetic field detectors, as a detector, the detector and the transmitter being arranged to the side of a passage for the run of the drive chain that is to be scanned. The invention also relates to a method for controlling an extraction device for preventing hanging chain.

A tunnel boring machine is provided comprising a cutter head, a main beam, a first, second, and third shield; and a ground conditioning work zone within the first shield, a gripper assembly, a segment erector arm for lining the tunnel, and at least one propulsion mechanism. The ground conditioning work zone includes at least one probing device for probing the terrain ahead of the cutter head. The first shield is configured to be retracted relative to the second shield to provide access for the ground conditioning work zone to apply at least one ground support device. The at least one propulsion mechanism moves the cutter head, the first and the second shield forward while the third shield and the gripper assembly remain stationary. The ground support devices can include filling a hole with a ground conditioning agent; and placing a bolt, ring beam, mesh, or shotcrete in / on the tunnel wall.

The invention relates to a support-type comprehensive tunneler which comprises a non-tracked tunneler, a tunneler chassis, a left hydraulic support, a right hydraulic support, a drilling rig and scraper conveyors, wherein the tunneler is arranged on the tunneler chassis, and two advancing jacks are arranged on the tunneler chassis; the other ends of the two advancing jacks are respectively connected with the left hydraulic support and the right hydraulic support, and the two sides of the tunneler chassis are respectively provided with a lateral pushing oil cylinder; forestopes of the left andright hydraulic supports are respectively provided with a group of metal mesh storages, and the tail of a main top beam of the support is hung with the drilling rig; the tail of a first scraper conveyor is arranged on a spade plate of the tunneler, and the head of the first scraper conveyor and the tail of a second scraper conveyor are overlapped; and the head of the second scraper conveyor and the tail of a belt loader are overlapped, and sleds are arranged at the back of the two hydraulic supports. The tunneler has the advantage that the drilling support and the coal cutting of the tunnelerare simultaneously carried out, and also has the automatic lapping function, thus reducing labor intensity and increasing the coal mining efficiency by over 4 times.

Novel tools and techniques are provided for implementing point-to-point fiber insertion within a passive optical network (“PON”) communications system. The PON communications system, associated with a first service provider or a first service, might include an F1 line(s) routed from a central office or DSLAM to a fiber distribution hub (“FDH”) located within a block or neighborhood of customer premises, via at least an apical conduit source slot, an F2 line(s) routed via various apical conduit components to a network access point (“NAP”) servicing customer premises, and an F3 line(s) distributed, at the NAP and from the F2 line(s), to a network interface device or optical network terminal at each customer premises via various apical conduit components (e.g., in roadway surfaces). Point-to-point fiber insertion of another F1 line(s), associated with a second service provider or a second service, at either the NAP or the FDH (or outside these devices).

Equipment and associated methods for replacing existing overhead transmission line conductors with new ones while the transmission line remains in service and carrying power. The old conductor is used to pull the new conductor through a series of sheaves installed at the bottom of the insulator at each tower. Conventional tension-stringing equipment is used but it is elevated to line potential that is achieved by use of an insulating platform or insulating jacks. Current transfer between stationary and moving conductors is achieved by a current transfer device that may consist of transmission line contacting wheels and liquid metal contactors. Sag control in various conductor spans is enhanced by a stringing block with controllable friction. Equipment is also introduced which will prevent release of the conductor by the pulling device should it break while engaged by that device.

A drogue for drawing an elongated item through a conduit is disclosed. The drogue includes a flexible bag having a closed end and an oppositely disposed end opening. Shroud lines attached to the bag at the end opening allow attachment of the drogue to the item. A biasing member, preferably in the form of a continuous loop of flexible, resilient interconnected wire legs, is attached to the bag and positioned proximate to the end opening. The loop engages the bag over a portion of its length and biases the end opening into an open configuration to prevent its collapse and loss of pneumatic pressure as it is propelled through the conduit.

The cable support block is for temporarily supporting a lower cable to an upper aerial cable. The support block comprises a rigid arcuate frame having an upper yoke straddling the upper cable, and an idle load-bearing roller rotatably mounted on the frame and supporting the lower cable. An elongated coil spring is fixedly attached at a first end thereof to the frame and defines a second opposite free end portion thereof movable relative to the first end by resilient: deformation of the coil spring. To insert a cable into the arcuate frame, the cable is forcibly abutted against the coil spring which will resiliently yield to allow access of the cable into the arcuate frame by being inwardly deformed.

A fiber optic network for a multiple dwelling unit (MDU) is disclosed. The fiber optic network comprises a riser cable preconnectorized with a first riser optical connector. The riser cable is optically connected to a feeder cable providing optical communication service to the MDU. The riser cable has one or more preset mid-span access points along the length of the riser cable. One or more optical fibers of the riser cable extend from the riser cable at the one or more preset mid-span access points and are preconnectorized with a second riser optical connector. A payout reel is adapted to pay out the riser cable such that the riser cable extends between the lower level and at least one of the one or more distribution levels. The payout reel is adapted to store a length of the riser.

The invention is a remote controlled vehicle adapted for navigating inside HVAC supply trunks. It is equipped with a moveable camera and a powered tool for snagging a string or parachute propelled into the trunk by other methods. A command box is provided to view the image from the camera and control the vehicle's various functions. The installation technician inserts the vehicle into the trunk through an access hole and uses the command box to navigate the vehicle inside a HVAC trunk and locate and secure the string to the vehicle. The technician then controls the vehicle to pull the string back to the access or the technician manually pulls the vehicle back to the access by its tether.

The invention provides a tunnel mining machine, which belongs to mining tunneling equipment. The tunnel mining machine comprises a chassis (1), a crawler travel mechanism (2), a rotary base (3), a large arm (5), a mining mechanism (6) and an operation device, wherein the rotary base (3) is arranged on the chassis (1); a main machine is driven by a power unit which is a motor; the power of the whole machine is supplied by an external power distribution device; an ore conveying channel is arranged under the chassis (1) or an ore conveying mechanism is arranged above the crawler of the crawler travel mechanism (2); and the mining mechanism (6) is arranged on the large arm (5). The tunnel mining machine has a simple structure, facilitates ore conveying, saves a working space when mining in a tunnel, can freely walk and move and be remotely controlled, and realizes integrated uninterrupted mining operation with high mining efficiency.

A puller head and cable puller including the puller head are provided for pulling cable in an upward or a downward direction. The puller head includes a frame, a capstan mounted to the frame, and first and second retaining shaft apertures. The puller head is pivotally mounted to a boom of the cable puller through a pivot shaft. The capstan of the puller head is positioned rearward of the boom. The position of an upper most surface of the capstan relative to the boom is changed by pivoting the puller head between upward and downward pulling positions. The puller head is maintained in either the upward or downward pulling position through the use of a retaining shaft.

Disclosed is an improved method and apparatus for installing a cable into cable guide tubing and the like. The method typically includes rotating a reel of cable guide tubing at least 360° while, using compressed gas, feeding a cable, such as a plurality of microducts, into the cable guide tubing. The related apparatus includes a cable injection unit and a rotation coupling unit to facilitate the installation of cable (e.g., microducts) into the rotating cable guide tubing.

A cable guide for containing and routing cables through building. One version of the guide includes a rigid hollow tube with a slot, flared ends, and mounting hangers while a second embodiment encompasses a tube axially split in two sections. The tube has a bend that traverses any angle necessary for a particular application, typically between 0° and 180°. There may be more than one bend. The cable is inserted and removed from the guide through the straight or helical slot, which extends the full length of the tube or by separating the clamshell. The tube ends are flared. Each end optionally has a cable retaining annular groove for a cable tie or the like. An additional embodiment has a hinged flap to perform the same function. The hangers are tabs that extend from the tube and spaced out along the length of the tube or a bracket like structure which provides a means for attachment.

An apparatus includes a frame having a drive shaft mounting portion and a power tool restraint portion, wherein the power tool restraint portion is adapted to register a portable rotary power tool, such as a power drill, with the frame. A drive shaft is mounted with the frame in the drive shaft mounting portion, wherein the drive shaft may be rotated about its longitudinal axis and a first end of the drive shaft is sized to be coupled with a rotary output of the power tool. A frame switch having an "off" position and an "on" position is also mounted on the frame, the frame switch engaging a power switch on the power tool when the frame switch is moved from the "off" position to the "on" position and when such a tool is mounted in the restraint portion and coupled to the drive shaft.