Abstract: Pruning shears or corresponding cutters comprising a first elongated handle part, a first blade part arranged as an extension of the first handle part, a second blade part pivoted to the first blade part from a first pivot point, and a second elongated handle part pivoted at its first end to the second blade part from a second pivot point. The second elongated handle part is connected to the first elongated handle part with at least one shaft pivotally connected to both the first and second elongated handle parts. The first and second elongated handle parts are arranged in the open position of the shears in remain along their entire length at a distance from each other enabling the use of the shears with one hand along the entire length of the handle parts.

Abstract: In accordance with one embodiment of the present invention, a driver may include an electric motor coupled to a bit interface. The bit interface may include a generally cylindrical body having first and second hollow portions. The first hollow portion may be on one end of the generally cylindrical body and may define a generally cylindrical hole. The second hollow portion may abut the first hollow portion and define an oblong channel. The oblong channel may be further defined by first and second parallel flat walls. The cylindrical body may also include a first transverse groove.

Abstract: A dental crown polishing apparatus has a motor, a ball bearing assembly around a shaft of the motor and having balls rotating and circularly moving around the motor shaft by receiving torque from the motor shaft, a brush assembly on the periphery of the ball bearing assembly, equipped with brushes contacting the ball to rotate and having bristles in the same direction as an axial direction of rotation and a tray opposite and open to the brush assembly to dispose a crown toward the brushes. The motor shaft is offset from the center of the brush assembly. The brush assembly moves in an orbital fashion by the rotation of the motor. The tray rotates separately from the brush assembly. The rotation of the tray is not synchronous with the rotation of the brush assembly. Dental crown polishing is achieved by the orbital movement of the brushes.

Abstract: A wrench or one way drive has a flexible head (2) with a split aperture (20) for loosely engaging a separate drive such as a socket or the head of a fastener (31) including a nut, bolt, screw or the like. Cam means, preferably pins (11,11a), are located on a handle (3) and engage the head (2) preferably through slots (21,22) in the head. The slots diverge outwardly so that as the handle is moved relative to the head the split aperture (20) closes and the flexible head (2) increasingly clamps a drive socket as more torque is applied to the handle.

Abstract: A numeric-control work-centre for machining plates of glass, marble and natural or synthetic stones comprises: a bench, defining a work surface, designed to receive the plates to be machined; two fixed side members, set at the two sides of the work surface; an overhead cross-member, guided over the two side members like an overhead-travelling crane, in a horizontal direction Y orthogonal to the horizontal direction X of the cross-member; and a carriage, which is mobile in the aforesaid horizontal direction X on the cross-member, present in which are two work heads carried by a slide, mounted on the carriage so that, during machining of the edge of a plate, consecutive passing of the first tool and of the second tool in any order is obtained with one and the same movement of the carriage and/or of the cross-member of the work-centre.

Abstract: An improved vehicle wheel tire changing system having a tire mount/dismount head coupled to an articulating tire mount/dismount arm assembly and a tire pressure sensor system which is configured to detect the presence of a tire pressure monitoring system sensor, mounted within a vehicle wheel assembly, prior to altering the mounting of a tire on an associated wheel rim.

Abstract: A method and apparatus for treating a cutter ring adapted to be used in tunnel boring operations; forming an initial cutter ring and heat treating the cutter ring prior to a laser client process; applying an alloy to the surface of the cutter ring adjacent to cutting elements by a laser cladding process whereby the cutting elements have insufficient heat transfer from the laser cutting process to reduce their hardness properties.

Abstract: A bottle opener including a housing with a inner cavity; a pair of clamping handles having upper portions coupled to the lower portions of the housing, and the lower portions including clamping portions configured to mate with the neck of the bottle. Also included are an actuator; a first sliding block making reciprocating movement in a longitudinal axis direction with respect to the inner cavity of the housing by the actuator; a helical screw assembly having an upper portion mounted in the first sliding block by a bearing and a lower portion that is free with rotation related to the first sliding block; and a second sliding block contained only slidably in the inner cavity of housing and positioned between the bottom plane of the inner cavity and the lower surface of the first sliding block.

Abstract: A tool device includes a tool shank having a noncircular engaging hole for slidably receiving a socket member which includes a noncircular bore for engaging with various fasteners, a biasing device may bias the socket member outwardly relative to the engaging hole of the tool shank, and an anchoring device may detachably and slidably anchor the socket member to the tool shank. One or more socket members may be replaced with each other for driving various tool members of different sizes or diameters or dimensions. A control ferrule may be slidably engaged onto the tool shank and selectively engageable with the detent and for selectively forcing the detent to engage with the socket member.

Abstract: A utility knife which includes a feature for presenting a user with a replacement blade holder containing replacement blades when the separate halves of the knife body, referred to as handle portions, are opened to expose an interior cavity is disc losed. A pivotable latching lever selectively movable between a latched position and an unlatched position permits the two handle portions to pivot relative to one another about a pivot axis when the lever is in the unlatched position so that the replacement blade holder may be presented to the user. The disclosed utility knife having a replacement blade holder and a latching lever is capable of very economic manufacture, yet is dependable in operation.

Abstract: A tool device includes a tool shank having a noncircular engaging hole for slidably receiving a socket member which includes a noncircular bore for engaging with various fasteners, a biasing device may bias the socket member outwardly relative to the engaging hole of the tool shank, and an anchoring device may slidably anchor the socket member to the tool shank. One or more socket members may be replaced with each other and may be selectively engaged into the engaging hole of the tool shank, for receiving and driving various tool members of different sizes or diameters or dimensions.

Abstract: A vent connection assembly for use in the installation of a vent on an exterior wall of a building and interconnection with a conduit in the interior of the building, including a first plate having a diameter smaller than the diameter of the vent, a second plate having a diameter smaller than the diameter of the vent, a deformable member defining a periphery, the deformable member having a diameter smaller than the diameter of the vent and being positioned between the first plate and the second plate, and a mechanism for drawing said first plate and said second plate together after said deformable member has been inserted into the vent, thereby deforming said deformable member and extending said deformable member radially to frictionally engage the vent. A method of installing a vent on an exterior wall of a building and connecting the vent to conduit within the interior of a building using the vent connection assembly.

Abstract: Stabilized or partially stabilized zirconia paste may be screen printed onto hydrophilic plastic film in the form of a mesh. On firing, this becomes a very sharp foil for electric razors with excellent wear and flexibility characteristics. Stabilized or partially stabilized zirconia may also be screen printed onto a wettable plastic film then fired to produce low cost razor blades with an excellent edge. A curved razor blade incorporating an array of holes, each of which has a knife edge periphery, offers greater cutting power and control of the skin surface than a single or double edge.

Abstract: The present invention relates to a ratchet wrench including a wrench with one end provided with a pivot hole; a turning knob disposed in the pivot hole of the wrench and containing a dial; a wheel member disposed to the handle of the wrench and containing also a dial; and a turning member with one end disposed to the dial of the turning knob and another end disposed to the dial of the wheel member.

Abstract: A coupling device for two connecting poles which includes: a lower fixing sleeve sleeved on the upper portion of a lower connecting pole, having an opening communicating the outer surface and the inner surface of the lower fixing sleeve, two fixed plates extend outwards from the edge of the opening; an upper fixing sleeve having a through gap, two fixing plates extend outwards from the gap, the fixing plates of the upper fixing sleeve are disposed within the lower fixing sleeve, the fixing plates including releasing portions and locking portions; a controlling member rotatably connected to the lower fixing sleeve, including a central portion and two side portions, the inner side surfaces of the two side portions contacting the outer side surfaces of the two releasing portions.

Abstract: A chainsaw is provided having a brake band disposed about a drum that rotates during advancement of the saw chain about the saw bar. An end of the brake band is biased to a position that draws the brake band tight about the drum to prevent advancement of the saw chain, and the throttle trigger of the chainsaw is associated with this biased end to push the band against the bias and release the drum when the throttle trigger is squeezed to drive the elements of the chainsaw that serve to advance the saw chain. Also provided are new concepts for associating gasing and braking elements with the throttle trigger.

Abstract: An electric cutting device includes a housing, a motor, an activation button, a first assembly, a second assembly, two connecting rods, two connecting rods and a cutting assembly. The activation button may be used to activate the motor. The motor is connected with a speed reduction gear set, and a transmission gear is connected with the output shaft of the speed reduction gear set. The transmission gear is engaged with a driving gear. A threaded rod is fixedly connected with the driving gear. The two supporting rods are pivotally connected with the first assembly. The rear end of either connecting rod is connected with the front end of the corresponding supporting rod. In use, the motor may cause the threaded rod to rotate and then activate the cutting operation of the cutting assembly.

Abstract: The invention relates to a power tool with a reciprocating blade, such as a jigsaw, in which the blade can have linear and pendulum movement components imparted thereon and also to a blade holder assembly. There is provided a bearing for a holder member which allows control of the movement of the holder in relation to both movement components, said bearing including a first part though which the holder member passes and a second part in relation to which the holder member and the first part are movable.

Abstract: This specification discloses an apparatus for constructing a gate opening comprised of a spacing unit with a first end and a second end, means for expanding the spacing unit such that the distance between the first end and the second end may vary; means for locking the spacing unit such that the distance between the first end and the second end remains constant. The first end is comprised of means for attaching the first end to fence stock; and the second end is comprised of means for attaching the second end to fence stock. In some embodiments, the means for attaching the spacing unit to fence stock is comprised of dual-purpose notches.

Abstract: A device for sharpening chain saw teeth, in particular a chain saw which is portable and applicable in the field, and where the chain is not to be taken off the chain saw blade when sharpened enables swinging of a grinding wheel (16) transversally to each tooth (8) of a chain (7) resulting in straight cutting faces of each tooth (8). The grinding wheel (16) of the relatively small diameter is rotated by an actuator (15) of the suitably small power and high number of the revolutions resulting in high cutting speed. Said actuator (15) can be either an electric motor, supplied with electricity from electric mains or a battery, a pneumatic motor or a hydraulic motor.