Abstract: A pliers apparatus is provided, the apparatus comprises two arms, two jaws, struts and a switch allowing the apparatus to function as a ratcheting device, pliers and clamps.

Abstract: A pliers apparatus is provided, the apparatus comprises two arms, two jaws, struts and a switch allowing the apparatus to function as a ratcheting device, pliers and clamps.

Abstract: An internal combustion engine has a chamber that has a longitudinal centerline, inlet valving operable to admit constituents of a combustible mixture into the chamber for combustion in the chamber to provide a pressure increase in the chamber and outlet valving operable to release an outflow of liquid from the chamber under an influence of the pressure increase. An annular flow passage is defined in the chamber to conduct liquid towards the outlet valving and cause spiraling of the liquid in the flow passage by which a rotatable part exposed to the spiraling flow is caused to rotate. An electrical generator disposed externally of the chamber is driven by rotation of the rotatable part.

Abstract: A hand operated gripping tool includes a movable jaw, a fixed jaw, a first cam associated with the movable jaw, a pivotal handle connected with the movable jaw and a second cam associated with the pivotal handle. The first cam is spaced from the fixed jaw by a first variable distance, and the second cam is spaced from the fixed jaw by a second variable distance, with the first distance maintained greater than the second distance. The jaws are cooperable to define a variable size space for receiving a workpiece and the cams are operable to cause the jaws to grip the workpiece positioned in the variable size space. The cams are arranged such that rotational movement of the second cam caused by operation of the pivotal handle causes the movable jaw to pivot on the first cam to grip the workpiece that is positioned in the variable size space.

Abstract: A wrench ratchet mechanism has a driven member, a housing having a chamber in which said driven member is at least partially received and a torque transmitter disposed between the housing and the driven member to transmit an applied torque from the housing to the driven member. The torque transmitter is deformable from a non-torque transmitting condition to a torque transmitting condition in response to rotation of the housing in a first direction and returnable to the non-torque transmitting condition in response to rotation of the housing in a second direction that is opposite the first direction.

Abstract: A wrench socket for use on fasteners such as pipework fittings where closed pipework or other obstructions would normally prevent the use of a ring wrench or closed sockets has a plurality of swivel arms pivotally mounted to a socket main body. The swivel jaws can be opened and closed as required around pipework and the fastener. Formations on the swivel arms align with one another when the swivel arms are closed allowing engagement by a drive bar that locks the swivel arms together. The swivel arms cooperate with the socket main body to define a polygonal fastener receiving aperture. The socket main body can be made thin profile to allow the wrench socket to be used in close proximity to obstructions that would prevent the operation of prior art wrenches and wrench sockets.

Abstract: A socket for a wrench comprises a fixed portion provided with a first fastener receiving aperture and a rotatable portion provided with a second fastener receiving aperture. The fixed and rotatable portions are disposed such that the first and second fastener receiving apertures are in overlying relationship to define a fastener receiving space and the rotatable portion is rotatable with respect to the fixed portion to adjust the fastener receiving space.

Abstract: A hand operated gripping tool includes a first jaw fixedly connected with a first jaw handle, a second jaw movable relative to the first jaw such that the first and second jaws cooperably define a variable size space therebetween for receiving a part to be gripped, a second jaw handle pivotally connected with the second jaw for moving the second jaw relative to the first jaw, a link system pivotally connected to the second jaw handle and having a guided portion selectively engageable with a plurality of guide portions provided on the first jaw handle. The guided portion being engageable with a first of the guide portions to define a first range of movement of the second jaw towards the first jaw and a second of the guide portions to define a second range of movement of the second jaw towards the first jaw.

Abstract: A wrench comprises a handle portion, a head portion releasably secured to the handle portion and a release device. The head portion has an inner surface that defines a fastener receiving aperture and a side entry to the fastener receiving aperture and is movable relative to the handle portion between a loading position in which the side entry is open and an operating position in which the side entry is closed. The head portion is operable to close around a fastener received in the fastener receiving aperture in response to a torque applied in a predetermined direction using the handle portion. The release device is arranged to at least assist in releasing the head portion from the handle portion to permit the head portion to be separated from the handle portion.

Abstract: A brake bleeding apparatus comprises a supply receptacle for brake fluid for supply to a braking system, ducting for connecting the supply receptacle with the braking system and a vacuum source connected with the supply receptacle for de-gassing brake fluid stored in the supply receptacle.

Abstract: A flaring apparatus comprising a pipe holder for holding a pipe such as to prevent axial movement of the pipe and a hand-powered actuator including a pivotably mounted lever operable to drive a tool carrier towards the pipe holder.

Abstract: A gripping device comprises a support frame defining an axially extending internal space for receiving a part that is to be gripped and a plurality of jaws carried by the support frame. The jaws each have an end face and are connected with the support frame such that an axially directed force applied to the end faces causes axially and radially inward movement of the jaws for gripping a part received in the internal space.

Abstract: A wrench socket for use on fasteners such as pipework fittings where closed pipework or other obstructions would normally prevent the use of a ring wrench or closed sockets has a plurality of swivel arms pivotally mounted to a socket main body. The swivel jaws can be opened and closed as required around pipework and the fastener. Formations on the swivel arms align with one another when the swivel arms are closed allowing engagement by a drive bar that locks the swivel arms together. The swivel arms cooperate with the socket main body to define a polygonal fastener receiving aperture. The socket main body can be made thin profile to allow the wrench socket to be used in close proximity to obstructions that would prevent the operation of prior art wrenches and wrench sockets.

Abstract: A line wrench includes a drive receiving portion, a holder movably connected to the drive receiving portion and a fastener engaging body. The fastener engaging body has a plurality of fastener engaging surfaces defined by a fastener receiving aperture having an axis and a side opening through which an elongate member can enter the fastener receiving aperture by a movement transverse to the fastener receiving aperture axis. The holder is arranged to receive the fastener engaging body, has a free end portion and is movable between a position in which the free end portion is spaced from the drive receiving portion to permit an elongate member to enter the side opening and a position in which the free end portion engages the drive receiving portion such that a drive force applied to the drive receiving portion is transmitted to the holder via the free end portion.

Abstract: A socket for a wrench comprises a fixed portion provided with a first fastener receiving aperture and a rotatable portion provided with a second fastener receiving aperture. The fixed and rotatable portions are disposed such that the first and second fastener receiving apertures are in overlying relationship to define a fastener receiving space and the rotatable portion is rotatable with respect to the fixed portion to adjust the fastener receiving space.

Abstract: A wrench comprises a handle portion, a head portion releasably secured to the handle portion and a release device. The head portion has an inner surface that defines a fastener receiving aperture and a side entry to the fastener receiving aperture and is movable relative to the handle portion between a loading position in which the side entry is open and an operating position in which the side entry is closed. The head portion is operable to close around a fastener received in the fastener receiving aperture in response to a torque applied in a predetermined direction using the handle portion. The release device is arranged to at least assist in releasing the head portion from the handle portion to permit the head portion to be separated from the handle portion.

Abstract: A strap wrench (10) suitable for turning an oil filter canister (16) comprises a strap (14) and a drive unit (12). The drive unit (12) has a portion (14e) of the strap secured to it and includes a toothed rotary drive element (18) and a guide surface (48). The rotary drive element (18) has a drive member connection formation (24) connectable with a rotatable input drive member. A passage (46) is defined between the guide surface (48) and rotary drive element (18) through which a free end (14e) of the strap is threaded to form a loop with teeth (22) of the rotary drive element (18) engaging the strap such that rotation of the rotary drive element imparts a pulling force to the strap that pulls the strap through the passage to tighten the loop onto the oil filter canister and apply a turning force to the canister. The strap wrench (10) can be used to apply a turning force to a generally cylindrical surface of other objects such as a tube or pipe.

Abstract: A wrench (1) is disclosed having a handle (3) mounted pivotally with a head portion (2) for engaging a drive socket to tighten or slacken a fastener such as a nut, bolt or screw, and a resilient split ring (5) as operative portion intermediate the handle (3) and head portion (2). The head portion (2) has an aperture into which the split ring (5) is sprung to define a radial gap in the split ring (5) and a camming arm (33, 34) extending radially outwardly from each end of the split ring (5) respectively. The split ring (5) also has stops (37, 38) engaging the head portion under the natural resilience in the split ring (5) to prevent undue rotation of the ring in the head portion.

Abstract: There is disclosed a fold-away wrench having a wrench head (9) pivotally mounted on a handle (2). The wrench head (4) is an open flexible ring socket (3a) locatable over a fastener such as a nut, bolt or screw to move it. Pins (17) are provided for engagement with the wrench head (4) to close the wrench head over a fastener to be moved. Preferably, the wrench head (4) is pivotable on an axis pin (10) at one end of the socket ring while at the other end of the socket ring is a fulcrum pin (17) for closing the socket over the fastener.

Abstract: A pipe flaring apparatus for use in flaring the end of a pipe preferably comprises a housing, a three jaw clamping chuck (3) in the housing which clamps the pipe (11) as the chuck (3) is propelled along an inclined surface (10a) of a chuck clamp (10) also in the housing by the operation of an outer piston (4) slidable in the housing by mechanical or hydraulic means. An inner piston (5) also mounted in the housing and preferably within the outer piston propels the required flaring tool (6) inwardly compressing pipe end (11a) between the clamping chuck die (3a) and a pipe flaring tool forming face (6b) to form an appropriate flare (11b) on the pipe end (11a). When the inner and outer pistons (4, 5) are deactivated resilient members preferably in the form of helical compression springs (8a,8b) disengage the flaring head tool (6) and the clamping chuck (3) from the flared pipe (11a). The pipe (11) can easily be withdrawn through the chuck (3) and chuck clamp (10).