Abstract: A system for bracing a reciprocating shaft having a first shaft portion that moves along a long axis with respect to a second shaft portion and a short axis orthogonal to the long axis. The first shaft portion moves past a switch in a first direction to disengage the switch and past the switch in a second direction to engage the switch. A bracing member is carried by the switch and has a tip that, when the switch is engaged, is located immediately adjacent and laterally braces the second shaft portion by limiting movement of the second shaft portion along the short axis. When the switch is disengaged, the tip of the bracing member is not located immediately adjacent the shaft.

Abstract: A clamp is adapted to be secured to a second substantially identical clamp in order to accommodate a larger workpiece than can be held by a single clamp. The clamp includes a first jaw that is secured to an intermediate member, such as a bar or pipe, and a second jaw that is removeably securable to the intermediate member so as to selectively oppose the first jaw. The second jaw includes a surface thereon that is configured to interlock with a complimentarily-shaped surface on a second jaw of the second clamp.

Abstract: A clamp that includes a first clamping jaw, a support element to which the first clamping jaw is attached and a clamp body having a first slot through which the support element passes along a first direction and an opening that faces in a direction that is substantially perpendicular to the first direction. A handle grip attached to the clamp body, a braking lever and a brake actuator that contacts the braking lever and includes an engagement element that extends through the opening.

Abstract: An improved lip extension and control assembly is provided for use in a dock leveler. The dock leveler has a ramp pivotally connected to a stationary frame in a conventional manner for pivoting between a pendant, stored position and an extended preparatory position. The lip is pivotally connected to the front edge of the ramp. The assembly has an extension assembly operatively connected to the lip for extending the lip in response to the rotation of the ramp to the extended position. A pivot controlling assembly operatively connected to the lip controls the rotation of the lip in a programmed manner such that upon walking the deck down, the descent of the lip progressively increases from the extended position to the pendant position.