Abstract: A terminal crimp tool capable of replacing jaws by rapid insertion and extraction includes a crimp tool body. A pair of openable heads are provided at a front end of the crimp tool body, and the two heads each are provided with a jaw. Two clamping plates are provided at a front part of each of the heads, a jaw mounting groove is formed between the two clamping plates, and a positioning member is provided in the jaw mounting groove. The jaw is mounted in the jaw mounting groove, positioning protrusions extending along a front-rear direction and respectively abutting against inner side edges of the two clamping plates are provided on two sides of the jaw, a clamping notch is provided on a rear part of the jaw on an outer side of the positioning protrusion, and an outer side edge of the clamping notch abuts against the positioning member.

Abstract: A self-adjusting locking vise grip includes a stationary handle, a stationary jaw, a pivoting jaw, a pivoting handle, a first link, a second link and a rail assembly. The stationary jaw is retained in one end of the stationary handle. The pivoting jaw is pivotally retained adjacent the stationary jaw. One end of the pivoting handle is pivotally retained on the pivoting jaw. The first link is pivotally retained by the pivoting handle. The second link is pivotally retained by the first link. The rail assembly includes a slide carriage, an adjustment screw and a rail member. The adjustment screw is threaded into the slide carriage. The slide carriage is slidably retained by the rail tube. The other end of the second link is pivotally retained by the slide carriage. The rail member is retained in the other end of the stationary handle.

Abstract: A toggle locking tool is provided with an adjustment screw assembly comprising a force-enhancing shank that enables the holding force of the tool to be multiplied manifold. The adjustment screw assembly comprises an adjustment screw conventionally adapted to be fed into and to engage a threaded bore in the outer end of the fixed handle of the tool; however said adjustment screw itself comprises an internal, fine-threaded bore that extends through the length of said screw, and that receives a threaded force-enhancing shank having a head portion adapted for turning manually or with a turning tool. An end portion of said shank extends beyond the adjustment screw to form the bearing surface which, in a conventional toggle locking tool, is provided by the tip of the adjustment screw. Rotation of the adjustment screw provides rapid, low-force locking adjustment of the tool, and subsequent torquing of the force-enhancing shank results in the application of a multiplied locking force to the jaws of the tool.

Abstract: Tongs comprising a four link mechanism (12, 20, 22, 30) wherein the links are pivotally connected together by means of parallel pivot joints (23?, 24?, 31?, 32?), wherein the link mechanism includes two mutually connected links (20, 30) which define therebetween an angle that approaches 180° at the closing end position of the tongs, and wherein the length of one (30) of said two links is adjustable and includes two parts that are moveable in the longitudinal direction of the link, wherein the first (36) of said parts includes a slot (51) for guiding a a shaft (31) carried by said second part (70) and belonging to the pivot joint of the adjustable link (30).

Abstract: Slip-joint pliers of the present invention comprise, in one embodiment, a pair of compound handles pivotally attached to jaw means being upper and lower jaw members having a manually adjustable slip-joint therein for providing at least two different maximum jaw opening positions, each having a different separation angle. The jaw openings are selectable by movement of a lever, for example, attached to a keyed pivot pin in the slip-joint. The jaw openings are selectable with minimal movement of the compound handles as a result of spring biasing between the jaw members and abutting engagement with the compound handles.

Abstract: A wire crimper having a body with a fixed jaw, a lever, a movable jaw pivoted between the body and the lever, a ratchet member coupled between a body and a lever thereof, a release plate pivoted to the lever and forced by a spring into engagement with the ratchet, and an adjustment mechanism for adjusting the angular position of a ratchet member relative to the body, the adjustment mechanism including an eccentric shaft to which the ratchet member is pivoted, a fixed stub locating rod at the body, an adjustment wheel axially movably supported on the eccentric shaft and adapted for turning the eccentric shaft to change the angular position of the ratchet member, and a spring washer retained to the eccentric shaft and forcing adjustment wheel into engagement with the fixed stub locating rod to stop the adjustment wheel from rotary motion.

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: A hand tool for pressing wire connectors to establish electrical connection between a plurality of insulated wires inserted into the connector includes an elongatged body having a mouth at one end for receiving a wire connector with wires inserted therein. A movable jaw is pivotally mounted on the body for movement about a first pivot laterally offset from a longitudinal axis of the body forming a movable wall of the mouth for compressing the connector to a precise geometric configuration. An operating handle is pivotally connected to the jaw for movement about a second pivot on the jaw and the handle has an opposite outer end portion movable toward and away from the tool body for moving the jaw between open and closed positions. A thrust element is pivotally interconnected between a third pivot on the handle and a pivot point at the outer end of the tool body.