A fixture for holding a part comprises a frame supporting a guide plate. A controlled engagement device passes through the guide plate and is arranged to be advanced incrementally towards a first end of a fulcrum beam. A second end of the fulcrum beam is connected to a linkage arm, the linkage arm passing through a gap in the guide plate. An end of the linkage arm distal to the fulcrum beam has a swivel clamp mounted thereto. A support is arranged to face the swivel clamp and defines a space there between, the space being configured to receive a part to be clamped in the fixture.

Devices position inspection and operation tools in a nuclear reactor without use of a bridge or other refueling structure well above the reactor core. Devices can selectively join to in-reactor structures like steam dams through clamping that permits limited movement. Clamps can include one or more rollers that allow for controlled, accurate positioning of the devices relative to the structures. Devices include an extension to which the tools can be affixed. Through selective disengagement of joining structures, devices can move over obstacles on the mounting structure. Devices further include controls so that operators positioned outside the reactor can move the device while mounted on a static structure. The controls can further move the inspection tool in other directions with the extension. Devices are useable underwater or submerged in other fluid and may include powering lines or mechanical extensions that permit powering or direct interfacing from operators outside the reactor.

The invention relates to a device for holding prosthetic teeth (2), the device comprising a negative form (1) and at least one clamping unit (6), wherein in the negative form (1), recesses (4) for holding coronal sides (12) of the prosthetic teeth (2) are provided, wherein the recesses (4) are formed in such a manner that the prosthetic teeth (2) can be inserted in an unequivocally position and orientation into the recesses (4), wherein the at least one clamping unit (6) is affixable or is affixed to the negative form (1) with a connecting means (10), and wherein the at least one clamping unit (6) has at least one elastic holding means (8), wherein with the at least one elastic holding means (8), an elastic force is exercisable or is exerted from at least two different directions onto the prosthetic teeth (2) inserted into the negative form (1), while the at least one clamping unit (6) is affixed to the negative form (1), so that the prosthetic teeth (2) are affixed in the device. The invention also relates to a method for affixing, and preferably processing, prosthetic teeth (2) and a set for implementing such a method, having several prefabricated prosthetic teeth (2) and at least one such device.

A clamping apparatus includes a spindle body and a nut element to be screwed together for decreasing a spacing between first and second clamping elements to clamp an object disposed therebetween. The nut element has roller bodies with a defined roller engagement structure axially rotatably secured on a receiving body of the nut element and distributed in circumferential direction. A plurality of engagement regions distributed and/or spaced apart on the spindle body each have one spindle body engagement structure. The roller engagement structures of the roller bodies engage or can engage the spindle body engagement structures of the spindle body. The nut element can be screwed to the spindle body by the mutually engaged engagement structures of the spindle body and of the roller bodies, in particular with rolling of the roller bodies on the spindle body. An apparatus and a vise having the clamping apparatus are also provided.

A clamping apparatus includes a spindle body and a nut element to be screwed together for decreasing a spacing between first and second clamping elements to clamp an object disposed therebetween. The nut element has roller bodies with a defined roller engagement structure axially rotatably secured on a receiving body of the nut element and distributed in circumferential direction. A plurality of engagement regions distributed and/or spaced apart on the spindle body each have one spindle body engagement structure. The roller engagement structures of the roller bodies engage or can engage the spindle body engagement structures of the spindle body. The nut element can be screwed to the spindle body by the mutually engaged engagement structures of the spindle body and of the roller bodies, in particular with rolling of the roller bodies on the spindle body. An apparatus and a vise having the clamping apparatus are also provided.

A tool storage rack provides receiving bays for positioning tools therein. An elastomeric portion of the rack provides gripping and cushioning for the tool and further provides gripping for lessening the chance of movement or sliding of the rack from position.

In a first aspect, a tool is disclosed for use in installing a drawer slide having a bottom surface and a top surface. The tool includes a ledge for supporting the bottom surface of the drawer slide; and a movable member for contacting the top surface of the drawer slide, wherein movement of the movable member changes a distance between the ledge and the movable member. In another aspect, a method of using a tool is disclosed to position a drawer slide proximate a furniture surface of a furniture box, the drawer slide having a first surface and a second surface. The method includes positioning the first surface of the drawer slide on a ledge of the tool; moving a movable member to contact the second surface of the drawer slide; placing the tool proximate the furniture surface; and attaching the drawer slide to the furniture surface.

A compact pulley puller includes a hollow cylindrical barrel with a gland at each end, a hub clamp formed on each gland, a rod and a piston. Each hub clamp grips a particular size hub of a pulley to be removed or installed. The rod of the puller extends against the shaft of a pulley to remove the pulley. To install a pulley, the rod is threadedly secured to the shaft of the pulley, and the rod of the puller is retracted.

According to an embodiment, a support module is provided for supporting a substrate. The support module may include a chuck and a vertical stage. The chuck may include multiple chuck segments that are independently movable. When the substrate is positioned on the chuck, different chuck segments are positioned under different areas of the substrate. The vertical stage may include multiple piezoelectric motors. Each piezoelectric motor may be configured to perform nanometric scale elevation and lowering movements. The multiple piezoelectric motors may be configured to independently move the multiple chuck segments.

A tool includes an actuator assembly, a rod, a first nut, and a second nut. The actuator assembly includes a cylinder, a ram, and a bore extending through the cylinder and the ram. The cylinder includes an internal chamber supporting the ram, a first end, a second end, and a reaction surface positioned proximate the first end. The ram is movable relative to the cylinder and positioned adjacent the second end of the cylinder. The rod extends through the bore of the actuator assembly. The first nut is selectively coupled to one of a first end of the rod and a second end of the rod, and defines a first dimension larger than the bore width of the bit block. The second nut is selectively coupled to the other of the first end of the rod and the second end of the rod, and defines a second dimension less than the bore width.