An improved floating jaw assembly to a machinist vise assembly capable of holding a plurality of individual workpieces, the vise assembly generally including a base with a way or ways, a fixed jaw mounted on the ways, at least one movable jaw slidably mounted on the ways to move toward and away from the fixed jaw on a longitudinal axis in such a manner that at least one workpiece can be securely held between the fixed jaw and the at least one movable jaw, and a mechanism for moving the movable jaw toward and away from the fixed jaw to clamp and unclamp workpieces. The floating jaw assembly includes at least one floating jaw plate attached to the vise assembly with means for adjustable movement of the floating jaw plate(s) along the longitudinal axis of the vise assembly and for articulated movement of the floating jaw plate(s) in a plane substantially parallel to the base of the vise assembly and about an axis perpendicular to the longitudinal axis of the vise assembly so that the floating jaw plates can, in cooperation with adjoining jaws or plates, adjust to and securely hold workpieces. In addition, the floating jaw assembly includes a means of forcing the at least one floating jaw plate downward and securely against the ways of the vise assembly.

A linear ratchet drive mechanism operable single handedly for pivotally actuating one or more plier jaws in a diverging or converging direction for gripping objects under extreme pressure. A drive rod is received in a handle body for axial movement with one end of the drive rod pivotally linked to the jaw or jaws in order to actuate the jaws. An actuating lever is pivotally connected at one end to the handle body and extends from the handle body for single hand actuation by squeezing the lever against spring biased towards the handle body. The actuating lever is provided with a leverage arm that extends from the pivoting end of the actuating lever and is pivotally connected to a drive grip lever having an aperture surrounding the drive rod for binding against the drive rod for thereby driving the drive rod in one direction when the drive grip lever is canted and moved by squeezing the actuating lever. An incremental stop mechanism is also provided to quickly retain the jaw spacing after initial use of the device.

A linear ratchet drive mechanism operable single handedly for pivotally actuating one or more plier jaws in a diverging or converging direction for gripping objects under extreme pressure. A drive rod is received in a handle body for axial movement with one end of the drive rod pivotally linked to the jaw or jaws in order to actuate the jaws. An actuating lever is pivotally connected at one end to the handle body and extends from the handle body for single hand actuation by squeezing the lever against spring biased towards the handle body. The actuating lever is provided with a leverage arm that extends from the pivoting end of the actuating lever and is pivotally connected to a drive grip lever having an aperture surrounding the drive rod for binding against the drive rod for thereby driving the drive rod in one direction when the drive grip lever is canted and moved by squeezing the actuating lever. An incremental stop mechanism is also provided to quickly retain the jaw spacing after initial use of the device.

An alignment tool that is used to hold a pipe fitting stationary in the welding process includes a pipe guide, a guide shaft, and an adapter. The adapter can vary according to the fitting that is to be welded. As an example, the adapter can be a flange adapter, a 90-degree adapter or a 45-degree adapter. The guide shaft is slidably engaged to a connecting arm which is perpendicularly and terminally fixed to the pipe guide. Therefore, the distance between the guide shaft and the pipe guide can be varied as preferred. A base section of the adapter is slidably engaged along the guide shaft. Therefore, the position of the fitting which is mounted on the adapter can also be repositioned as preferred. In order to hold the pipe against the pipe guide, a chain is being used.

A clamping device (400) for gripping and clamping a flat material (12) extending along a material plane (11) includes clamping jaws (402). The clamping jaws include a first clamping jaw (404) and a second clamping jaw (406) extending parallel to a clamping axis (408). The first and/or second clamping jaws are pivotable about a clamping rotational axis (410) running parallel to the clamping axis between open and closed positions. The first clamping jaw has a first clamping surface (414) and the second clamping jaw has a second clamping surface (416). The first clamping jaw has a clamping element (418) projecting relative to the first clamping surface and the second clamping jaw has a clamping recess (420) that is set back from the second clamping surface. In the closed position, the clamping recess accommodates the clamping element so that the flat material is gripped and clamped simultaneously.

An improved floating jaw assembly to a machinist vise assembly capable of holding a plurality of individual workpieces, the vise assembly generally including a base with a way or ways, a fixed jaw mounted on the ways, at least one movable jaw slidably mounted on the ways to move toward and away from the fixed jaw on a longitudinal axis in such a manner that at least one workpiece can be securely held between the fixed jaw and the at least one movable jaw, and a mechanism for moving the movable jaw toward and away from the fixed jaw to clamp and unclamp workpieces. The floating jaw assembly includes at least one floating jaw plate attached to the vise assembly by means of mounting pins and openings in the floating jaw plates for adjustable movement of the floating jaw plates along the longitudinal axis of the vise assembly and for articulated movement of the floating jaw plates in a plane substantially parallel to the base of the vise assembly and about an axis perpendicular to the longitudinal axis of the vise assembly so that the floating jaw plates can, in cooperation with adjoining jaws or plates, adjust to and securely hold workpieces. In addition, the floating jaw assembly includes a means of forcing the at least one floating jaw plate downward and securely against the ways of the vise assembly as the at least one movable jaw moves toward the fixed jaw, along with the intermediary at least one floating jaw plate, when clamping a workpiece. The floating jaw plates can be bisected longitudinally so that each bisected jaw plate can move independently of the bisected jaw plate and allow for even greater adjustable and articulated movement of each bisected floating jaw plate. The floating jaw assembly can be added as an accessory to an conventional vise assembly.

A clamp apparatus includes a pair of first and second clamp arms. A driving force transmission mechanism transmits a driving force of a drive unit, whereby the first clamp arm is operated to rotate via a link arm, while simultaneously, the second clamp arm is rotated, and after being rotated through a predetermined angle, under moving action of a roller, which is inserted into a cam groove of a link plate, rotation of the second clamp arm is stopped and maintained in advance with respect to the first clamp arm. Consequently, after positioning of a workpiece has been carried out by the second clamp arm, rotation of which is stopped, the first clamp arm continues to be rotated, whereby the workpiece is clamped.

A clamp apparatus includes a pair of first and second clamp arms. A driving force transmission mechanism transmits a driving force of a drive unit, whereby the first clamp arm is operated to rotate via a link arm, while simultaneously, the second clamp arm is rotated, and after being rotated through a predetermined angle, under moving action of a roller, which is inserted into a cam groove of a link plate, rotation of the second clamp arm is stopped and maintained in advance with respect to the first clamp arm. Consequently, after positioning of a workpiece has been carried out by the second clamp arm, rotation of which is stopped, the first clamp arm continues to be rotated, whereby the workpiece is clamped.

A clamp suitable for clamping a handle from which a blade extends or a pair of scissors when the blade is being tested or sharpened. The clamp includes a first jaw, a second jaw and a releasable lock if the form of a latch and teeth. At least one of the jaws are able to swing with respect to the other jaw through a hinge mechanism. The first jaw comprises two outer padded parts and a central padded part. The outer and central padded parts are aligned. The central padded part is recessed such that a curved handle or pair of scissors can lay against all three padded parts when clamped. If a straight handle is clamped, the handle only contacts the outer padded parts. The second jaw also comprises padded parts which are inwardly angled for gripping.

A clamp suitable for clamping a handle from which a blade extends or a pair of scissors when the blade is being tested or sharpened. The clamp includes a first jaw, a second jaw and a releasable lock if the form of a latch and teeth. At least one of the jaws are able to swing with respect to the other jaw through a hinge mechanism. The first jaw comprises two outer padded parts and a central padded part. The outer and central padded parts are aligned. The central padded part is recessed such that a curved handle or pair of scissors can lay against all three padded parts when clamped. If a straight handle is clamped, the handle only contacts the outer padded parts. The second jaw also comprises padded parts which are inwardly angled for gripping.