Abstract: A water filter including a packing ring to seal up the gap between the casing and the top cover, which packing ring having downward projecting strips fitted into respective notches on the casing to stop the packing ring against rotary motion relative to the casing, two water sealing devices respectively mounted on a water outlet pipe on the top cover and a stub tube on the casing and having respective flanges forced to engage two opposite ends of the filter element and to prevent unfiltered water from entering the longitudinal center through hole of the filter element.

Abstract: A crimp tool includes a first handle, a head member pivoted to the front portion of the first handle to serve as a clamping member, and a second handle pivoted to the head member. The second handle is connected to the first handle through a mechanism which urges the second handle and the head member to the releasing position thereof. An adjustment member for the jaws of the crimp tool includes an adjustment screw rod and two nuts to adjust the position of a pivot pin in an oblong pivot hole which pivots the head member to the first handle member so that conductors of different cross-sections can be crimped effectively.

Abstract: An electrical pliers includes two posterior arms and two anterior arms overlapped and pivoted together, the posterior arms serving as handles and the anterior arms acting as jaw members. In the anterior arms are mounted wire stripping jaw members and wire clamping jaw members which extend transversely and partly out of the respective anterior arms. When the handles are depressed to approach one another, movable jaw members are moved to fixed jaw members in a direction parallel to a longitudinal axis of the pliers so as to clamp and cut the insulation layer of a wire, and then the anterior arms open to remove the cut portion of the insulation layer.

Abstract: The double-sided plier with parts including a pair of handle bars, a body, a T member slideable relative to the body member, in which the T member has portions confronting a straight upper edge of the body and therebetween the stripping cutter and the terminal pressing member are mounted with respect to the two sides of the transverse section of the T member, their functions can be effected when operating the handle bars. The body is formed with notches extended inwardly from two side thereof, a fixed tool member and a movable tool member associated therewith are provided with shearing surfaces pressing surfaces which extend across the notches respectively, the fixed tool member and the movable tool member are mounted in a manner that they can be driven by the handle bars with a pivoting motion to cutting wires or pressing either isolated or bare terminals of wires.