An article clip for article folding machines includes a body which includes opposite body front and rear ends and a body intermediate portion which extends therebetween. The body front end includes a front body pivot and the body intermediate portion includes an intermediate body pivot. The clip further includes a base jaw located at the front end and a clamping jaw located opposite the base jaw at the body front end, connected to the body via the front body pivot. The clip further includes a clamping recess formed in the body front end. The clip further includes an elongated driver configured to transfer forces from the body rear end to the clamping jaw. The driver is connected to the clamping jaw via a front floating pivot which is not connected to the body, and is connected to the intermediate body pivot via a pulling mechanism.

An article clip for article folding machines includes a body which includes opposite body front and rear ends and a body intermediate portion which extends therebetween. The body front end includes a front body pivot and the body intermediate portion includes an intermediate body pivot. The clip further includes a base jaw located at the front end and a clamping jaw located opposite the base jaw at the body front end, connected to the body via the front body pivot. The clip further includes a clamping recess formed in the body front end. The clip further includes an elongated driver configured to transfer forces from the body rear end to the clamping jaw. The driver is connected to the clamping jaw via a front floating pivot which is not connected to the body, and is connected to the intermediate body pivot via a pulling mechanism.

At least some implementations of the present invention include the ability to access and secure a compressed riser portion of a pop-up sprinkler. Access is gained through use of the tip of the tool, sloped for access clearance between the sprinkler nozzle “lip” and outer sprinkler base. Once raised from the outer sprinkler casing, the riser is secured in a designated clamping bay or within designated clamping points. This two-pronged approach accommodates varying diameter of sprinkler risers and increases the multi-use function of the tool. The tool's overall inward tension is provided by an engineered compression spring designed with adequate outward tension without making hand compression use of the tool restrictive. Use of the tool in an inward sweeping motion toward the sprinkler allows for raising and clamping the riser in a quick and simple fashion. Thereafter, allowing free and open-hand access for quick and thorough maintenance, repair, exchange or adjustment of the sprinkler nozzle and filter.

At least some implementations of the present invention include the ability to access and secure a compressed riser portion of a pop-up sprinkler. Access is gained through use of the tip of the tool, sloped for access clearance between the sprinkler nozzle “lip” and outer sprinkler base. Once raised from the outer sprinkler casing, the riser is secured in a designated clamping bay or within designated clamping points. This two-pronged approach accommodates varying diameter of sprinkler risers and increases the multi-use function of the tool. The tool's overall inward tension is provided by an engineered compression spring designed with adequate outward tension without making hand compression use of the tool restrictive. Use of the tool in an inward sweeping motion toward the sprinkler allows for raising and clamping the riser in a quick and simple fashion. Thereafter, allowing free and open-hand access for quick and thorough maintenance, repair, exchange or adjustment of the sprinkler nozzle and filter.

The present invention discloses a positioning system with an adjustable clamping force and a milling equipment for a rail transit honeycomb workpiece. The positioning system includes: a positioning apparatus, including a positioning table to support a workpiece; and a clamping apparatus, including a turntable, where the turntable is fixedly disposed on a periphery of the positioning table, a top of the turntable is connected to a mechanical arm, a pressure plate is disposed at an end of the mechanical arm, and the pressure plate is capable of cooperating with the positioning table to clamp the workpiece, where there are a plurality of clamping apparatuses, working regions of adjacent clamping apparatuses have an intersection, and working regions of all the clamping apparatuses are capable of covering a machining surface of the workpiece; and when machining is performed in an intersection region, a clamping apparatus corresponding to the region clamps the workpiece, and when machining is performed in a non-intersection region, a clamping apparatus corresponding to the region dodges, and an adjacent clamping apparatus clamps the workpiece.

A sprinkler clamp assembly for servicing sprinkler heads includes a clamp that has a pair of curved jaws. Each of the curved jaws curves toward each other such that the pair of curved jaws defines a circle when the clamp is biased into a closed position. In this way the curved jaws can encircle a stem of a sprinkler head. Each of the curved jaws rests against a housing of the sprinkler head when the curved jaws are positioned around the stem of the sprinkler head. A head of the sprinkler head abuts each of the curved jaws when the stem retracts into the housing to retain the head in an exposed position for servicing.

A sprinkler clamp assembly for servicing sprinkler heads includes a clamp that has a pair of curved jaws. Each of the curved jaws curves toward each other such that the pair of curved jaws defines a circle when the clamp is biased into a closed position. In this way the curved jaws can encircle a stem of a sprinkler head. Each of the curved jaws rests against a housing of the sprinkler head when the curved jaws are positioned around the stem of the sprinkler head. A head of the sprinkler head abuts each of the curved jaws when the stem retracts into the housing to retain the head in an exposed position for servicing.

A pneumatic clamping device includes a main body, a piston, a first linkage member and a second linkage member. The main body includes a chamber. The piston includes a pillar part. The first linkage member includes a first arm part and a second arm part. The second linkage member includes a third arm part and a fourth arm part. When the air is introduced into the chamber, the pillar part is gradually moved to push the first arm part and the third arm part, so that the second arm part is externally expanded relative to the fourth arm part. When the air is exited from the chamber, the pillar part is gradually moved to pull back the first arm part and the third arm part, so that the second arm part is internally retracted relative to the fourth arm part.

Aspects of the disclosure relate to a sliding clamp including a first arm with a first jaw attached to the first arm, and a second arm with a second jaw attached thereto. The first jaw includes at least one first clamping ball freely rotatable relative to the first arm, and the second jaw includes at least one second clamping ball freely rotatable relative to the second arm. The second arm is configured to move relative to the first arm to adjust a jaw opening between the at least one second clamping ball of the second jaw and the at least one first clamping ball of the first jaw. The sliding clamp is configured to constrain a workpiece to a clamping plane while permitting translation of the workpiece within the clamping plane.

Aspects of the disclosure relate to a sliding clamp including a first arm with a first jaw attached to the first arm, and a second arm with a second jaw attached thereto. The first jaw includes at least one first clamping ball freely rotatable relative to the first arm, and the second jaw includes at least one second clamping ball freely rotatable relative to the second arm. The second arm is configured to move relative to the first arm to adjust a jaw opening between the at least one second clamping ball of the second jaw and the at least one first clamping ball of the first jaw. The sliding clamp is configured to constrain a workpiece to a clamping plane while permitting translation of the workpiece within the clamping plane.