A pipe fitting tool configured to loosen a first section of pipe with respect to a second section of pipe. The pipe fitting tool includes a motor, a reciprocating member that reciprocates in response to activation of the motor, a holdback assembly configured to clamp and hold the second section of pipe, and a loosening mechanism configured to clamp and rotate the first section of pipe with respect to the second section of pipe in response to a first linear motion of the reciprocating member, and to release the first section of pipe in response to a second linear motion of the reciprocating member, the second linear motion being in a direction opposite the first linear motion.

A surgical tool for removing a portion of an implant is provided that includes a housing, a motor contained within the housing and coupled to the housing, and an output shaft having a distal end and a proximal end opposite the distal end, wherein the proximal end is coupled to the motor and the distal end has an opening configured to rotateably engage an implant. The surgical tool further includes a counter-torque sleeve extending around the output shaft having a proximal end and a distal end opposite the proximal end, wherein the proximal end is coupled to the housing and the distal end is configured to couple to the implant relative to the counter-torque sleeve. Upon a rotational force to the implant, the forces transmitted by the output shaft and the counter-torque sleeve are balanced by the coupling of the output shaft and counter-torque sleeve through the housing.

A method and fastening device for use in heavy duty machinery for fastening a lining element to a surface of a body steel plate is disclosed. An assembly, a truck and a handling tool utilizing the method and fastening device is also disclosed.

A fastening system including a frame, a movement control assembly, a fastener drive assembly and a collar presenting assembly. The frame can be coupled to an outside structure, for example, with a part that is to be coupled with a fastener attached to the frame. The movement control assembly is configured to controllably move the fastener drive assembly relative to the frame and the part so as to grasp the collar of the fastener, engage the threaded pin of the fastener and to threadedly engage the two structures together. The collar presenting assembly presents a collar of a fastener to the fastener drive assembly.

A pre-assembled female mould arrangement for being installed on a moulding machine, the pre-assembled female mould arrangement comprising: an annular forming element, extending about an axis and delimiting a forming cavity about said axis; a plate element, which delimits the forming cavity transversely to said axis; a peripheral annular component that surrounds at least partially the annular forming element; a supporting base;
a fastening element which is so mounted as to render the annular forming element fixed relative to the plate element.

A fastener holding spanner comprises a spanner head defining an aperture capable of engaging during use with a correspondingly-sized nut or bolt head of a fastener, with a clearance there-between, and at least one arm extending from the spanner head. During use of the spanner one of the at least one arms is capable of engaging with an abutment surface adjacent to a nut or bolt head of a fastener engaged by the spanner head upon rotation of the nut or bolt head under applied torque. The aperture comprises a plurality of internal faces, at least two of which are engaging faces. The engaging faces are substantially flat and are arranged to engage with flat faces of a nut or bolt head engaged by the spanner during use. At least one of the internal faces of the aperture is non-engaging with the nut or bolt head during use, the at least one non-engaging face located in between the at least two engaging faces. The aperture further comprises at least one through passage penetrating at least one of the internal faces, the at least one through passage having a longitudinal axis and being at least partially threaded over at least part of its length. In use a threaded member having a flat end may be screwed into the at least one passage, the flat end of the threaded member to contact under pressure a face of a nut or bolt head engaged by the spanner to prevent relative rotation between the spanner and the nut or bolt head. At least two engaging faces of the aperture are distal from the threaded member and located on opposing sides of the longitudinal axis of the at least one through passage.

Interchangeable reaction washer initially penetrates with outward bottom serration edges only during manual pre tightening. Slippage is thereby avoided at begin of the consecutive power torque wrench assisted full tightening of the nut and/or bolt head resting on it. As the load ramps up, the reaction washer flattens out and the bottom serrations gradually penetrate radially inwards. Reaction and actuation sockets of varying sizes matching a broad range of reaction washers and nut and/or bolt heads may be interchangeably snapped on a reaction coupling connected to the torque wrench housing. A clearance undercut underneath the reaction washer torque receiving flanges absorbs eventual debris to further assist unimpeded and fast coupling of the system. Radially oriented contact faces between reaction washer and reaction socket provide a snug contact unaffected by their toroidal movement during washer flattening and a force transfer free of radial force components.

A reaction torque limiting backup wrench arrangement (1) has at least one fastener engaging means e.g. spanner (6) or socket (170), for a pressure boundary bolted joint nut (5) of a respective fastener (3). The backup wrench arrangement provides a reaction torque up to a threshold above which rotation allowed by motion of the fastener engaging means is determined by a magnitude of the reaction torque and force deflection characteristic of a biasing arrangement acting directly or indirectly on the fastener engaging means. Tension in the flexible tension element e.g. chain (7) urges the spanner (6) onto the nut (5) of the fastener permitting the spanner to displace when torque transmitted through a bolt to the nut or bolt head within the spanner exceeds a threshold torque, enabling the nut or bolt head to rotate, helping prevent bolt over-tightening, and helping indicate the bolt seizing or galling.

A fastening system including a frame, a movement control assembly, a fastener drive assembly and a collar presenting assembly. The frame can be coupled to an outside structure, for example, with a part that is to be coupled with a fastener attached to the frame. The movement control assembly is configured to controllably move the fastener drive assembly relative to the frame and the part so as to grasp the collar of the fastener, engage the threaded pin of the fastener and to threadedly engage the two structures together. The collar presenting assembly presents a collar of a fastener to the fastener drive assembly.

A tooling assembly for fastener installation has a socket body reversibly rotatable by a driving mechanism. A bore in the socket body has a first end portion and a central portion incorporating threads. A second end portion of the bore receives and engages a severable section of a frangible fastener. A pin is received in the bore and constrained from rotation by the driving mechanism. The pin has an ejection shaft with mating threads selectively receivable in the threads of the central portion of the bore. The socket body is freely rotatable with the mating threads positioned in the first end portion of the bore. Rotation of the socket body in torques the frangible fastener on a stud fracturing the severable section. Reverse rotation of the socket body engages the mating threads in the threads translating the pin. The ejection shaft ejects the severable section from the second end portion.