Abstract: An electrical control module provides a plastic insert fitting inside a housing and compressed by assembly of the housing lid and base to be held securely therein. Elastic components on the plastic insert are compressed during the assembly provide a secure retention in the face of normal manufacturing tolerances. The plastic insert includes features for attaching electrical components such as electrical contactors, motor starters, disconnect switches, circuit breakers, and overload switches without conventional screw fasteners or the like through channels and elastic detents.

Abstract: An electrical control module provides a plastic insert fitting inside a housing and compressed by assembly of the housing lid and base to be held securely therein. Elastic components on the plastic insert are compressed during the assembly provide a secure retention in the face of normal manufacturing tolerances. The plastic insert includes features for attaching electrical components such as electrical contactors, motor starters, disconnect switches, circuit breakers, and overload switches without conventional screw fasteners or the like through channels and elastic detents.

Abstract: Backlighting for an LCD display is provided by a direct backlight unit which is hinged to the front panel in which the display is mounted. When closed, the backlight unit lamps and reflector transmit light directly against the back of the display. The reflector surfaces are made by a combination of constant radius, hyperbolic, parabolic and flat surfaces which maximize the emitted light transmitted to the display and help fill in for any failed or dimmed light sources.

Abstract: A masonry guide including an upright standard; a fork affixed to the standard adjacent its lowermost end for engaging the external corner of a building structure; a pair of arms pivotally engaging the standard at right angles to one another, the arms each carrying a common pin and an end pin adapted for placement upon the top surface of the walls under construction; and adjustment rods pivotally and angularly connected between the standard and each arm for vertically plumbing the standard and for providing arm support. Guide line blocks are attachable to the standard for holding horizontally extending guidelines in place. The masonry guide also preferably includes a pair of spirit levels adjacent the top of the standard for vertical positioning of the standard and may also include a measurement rule for setting of guidelines at proper height. An accessory pin, rearwardly extending from the standard, cooperates with the end pins of the arms to permit the device to be used on an internal corner.

Abstract: An antifriction bearing support (12) disclosed includes an outer support member (50) for mounting thereof on a spindle housing (16) and an inner support member (52) for mounting an antifriction bearing (42) which rotatably supports a spindle (38). The support also includes at least one flexible diaphragm (54) extending between the inner and outer support members to radially fix the inner support member and the antifriction bearing and preload the antifriction bearing axially with respect to the axis of spindle rotation so as to permit high speed spindle rotation. Preferably, a pair of the diaphragms (54) are utilized and are mounted in a spaced and parallel relationship to each other. Inner and outer round edges of the diaphragms are secured between axial surfaces (80, 82, 88, 90) of the support members and associated retaining ring (76, 78, 84, 86) that have soldered connections to the support members.

Abstract: A machine tool high speed spindle assembly and draw bar assembly, wherein the spindle assembly includes a hollow, rotary spindle shaft, and the draw bar assembly is nonrotational relative to the spindle shaft. The draw bar assembly is axially movable within the hollow rotary spindle shaft, and it includes a tool holder gripping means. The draw bar assembly rotates with the hollow rotary spindle shaft during a machining operation. The draw bar assembly with its tool holder gripping means is moved by an actuator means between an operative position for retaining a tool holder or the like in the spindle shaft, and an inoperative position to permit a tool holder or the like to be removed from or inserted into the spindle shaft. A spindle shaft holding or gripping means retains the hollow rotary spindle shaft in a stationary position when the draw bar actuator means moves the draw bar assembly between said operative and inoperative positions.

Abstract: A machine tool high speed spindle assembly and draw bar assembly, wherein the spindle assembly includes a hollow, rotary spindle shaft, and the draw bar assembly is nonrotational relative to the spindle shaft. The draw bar assembly is axially movable within the hollow rotary spindle shaft, and it includes a tool holder gripping means. The draw bar assembly rotates with the hollow rotary spindle shaft during a machining operation. The draw bar assembly with its tool holder gripping means is moved by an actuator means between an operative position for retaining a tool holder or the like in the spindle shaft, and an inoperative position to permit a tool holder or the like to be removed from or inserted into the spindle shaft. A spindle shaft holding or gripping means retains the hollow rotary spindle shaft in a stationary position when the draw bar actuator means moves the draw bar assembly between said operative and inoperative positions.

Abstract: A tool holding assembly wherein a self-locking chuck or tool holder is releasably secured in a rotary spindle by a draw bar and collet type tool holder gripping means. The self-locking chuck is provided with a spring-biased, ball locking means that functions as a safety retainer means for holding the chuck or tool holder in the spindle in case of a breakage of the collet type tool holder gripping means. The spindle is provided with a tapered seat against which the balls of the ball locking means are normally urged by a spring biased plunger that is movable to a ball unlocking position by the draw bar.