Abstract: A levered tool includes two cooperating jaws, two cover plates pivotably mounting therebetween the jaws, two handles providing a levering function for the jaws, and two pivotally connected toggles each of which includes a first end pivotally connected to one of the jaws and a second end fixed to one of the handles, wherein the tool is further provided with an adjusting device connected between the toggles and capable of adjusting the distance between the first ends of the toggles.

Abstract: A hand-operated cable cutter includes a rotary blade-rotating mechanism comprising a first pinion and a gear which are provided on the side of a stationary handle and a second pinion which is provided on the side of a movable handle, a ratchet lever, and a detent pawl. The ratchet lever and detent pawl are operated to be switched between their respective different states relative to the second pinion, thereby enabling a rotary blade not only in the direction of cutting off a cable but also in the direction of releasing the cable.

Abstract: A hand-operated cable cutter includes a stationary cutter blade having a first curved jaw and a first cutting edge, a movable cutter blade having a second curved jaw and a second cutting edge, gear teeth provided on the movable cutter blade, a drive mechanism, a stationary handle having a distal end secured to the stationary cutter blade, and a swing handle having a distal end mounted pivotally relative to the stationary cutter blade and stationary handle. The movable cutter blade is pivotally connected to the stationary cutter blade. The drive mechanism comprises a pinion kept in engagement with the gear teeth, a ratchet wheel mounted concentrically with and for rotation with the pinion, a knob connected to the pinion, a driving pawl pivotally connected to the swing handle and kept engageable with the ratchet wheel to rotate the ratchet wheel in one direction, and a detent pawl kept in engagement with the ratchet wheel to prevent the ratchet wheel from being rotated in the opposite direction.

Abstract: A cutting tool of the ratchet operated type comprises several elements. A movable blade having a plurality of notches along the rear end thereof is moved relative to a stationary blade by an opening and closing operation of a pair of blades through a push bar which is in engagement with one of the notches. A pawl for preventing the return of the movable blade is elastically biased so as to be kept in a position disengaged from all of the notches under normal conditions. The pawl is brought into engagement with one of the notches by the push bar only when the pair of handles are fully closed relative to each other. Due to the above construction, the cutting tool according to the invention brings about reduced wear of the pawl and the notches and an easy cutting operation.

Abstract: An improved cutting device including: first and second handles and a movable jaw having forward and rearward portions; a stationary jaw fixed to the first handle, the second handle including first pivot means for connecting the second handle to the stationary jaw and second pivot means for connecting the second handle to the movable jaw for providing slicing action between the jaws; and means, spaced from the first and second pivot means, for constraining motion of the rearward portion of the movable jaw and amplifying the leverage applied to the jaws by the handles through the first and second pivot means.

Abstract: A dehorning tool has a tabular body with a lever arm pivotally mounted on the upper half and connected to an end of a actuating arm inside the body. The other end of the actuating arm is connected to the ends of two cutting blades. There are camming means inside of the blades to cam them open when the blades are extended and there are camming means on the outside of the blades which cam the blades together when the actuating lever is moved to retract the blades.

Abstract: Mechanical or hydraulic press stampings are widely used for a manufactured product as thin material may be accurately blanked thereon so that only a minor amount of expensive machining is required. A compound pivot plier-type tool is provided wherein a pair of handles is pivotally mounted on and between a pair of plates which form a recess for the reception of a selected pair of jaws which are mounted therein by removable means so that a kit can be furnished with a pair of handles and mounting plates and several of the same or different types of pairs of jaws which may be easily substituted, one for the other in the recess between the plates for operation by the handles. The parts are relatively thin so that they may be largely formed by mechanical or hydraulic press stamping operations with resulting low labor costs.

Abstract: A ratchet cable cutter is provided with a double linkage between the handle and the pawl of the ratchet mechanism, and the relation between the two linkages is such that improved mechanical advantage is obtained while keeping the linkage mechanism within the limited spatial confines of the cutter tool.

Abstract: A plier has a pair of arms each composed of a jaw portion and a handle portion, and the jaw portions carry respective cutting elements. The arms are pivoted together so that when the handle portions are moved towards one another the jaw portions also move towards one another, and vice versa. Interengaging toothed racks are provided on the handle and jaw portions of the arms in the region where they are pivoted together and cooperate with one another to form a reduction gear.

Abstract: A shearing tool for synthetic resin tubes in which a lower jaw is connected to the leading end of an upper handle portion, a lower handle portion is pivoted at the leading end to the rear and lower end of said lower jaw, an upper jaw or shearing blade having a cutting edge is pivoted in an intermediate position to said upper handle portion above the pivot connection of said lower jaw to said lower handle portion, said lower jaw is provided with an arcuate tube receiving recess in the upper surface thereof, an opening is provided in forward portion of said upper handle portion extending therefrom to the leading end of said lower jaw for receiving said upper jaw, a connection link is connected between the rear end portion of said blade interposed between said upper and lower handle portions and the lower handle portion in a position rearwardly of said pivot connection of the lower jaw to said lower handle portion for urging said cutting edge toward said tube receiving recess when said upper and lower handle por