Abstract: A method of tinting or coloring glass. The following layers are deposited onto the glass: a first dielectric layer, a subcritical metallic layer; a primer layer; and a second dielectric layer. Alternatively, these layers may be deposited onto the glass: a first dielectric layer, a subcritical metallic layer; and a second dielectric layer. Alternatively, the invention is a coated article that includes a substrate, a first dielectric layer, an absorbing layer, and a second dielectric layer over the primer layer. The absorbing layer can be Inconel, titanium nitride, cobalt chrome (stellite), or nickel chrome material, and has a thickness in the range of 50 ? to 150 ?.

Abstract: Apparatus (OTDR) for accurately locating and measuring the optical parameters and characteristics of fiberoptic cables which reduces the adverse effects of coherence noise without effecting the stability and repeatability of the acquired locating and measuring information.

Abstract: A rotor lamination for a permanent magnet synchronous machine. The rotor lamination can be used for a two, four or eight pole synchronous machine. The orientation of the permanent magnets determines the number of poles of the machine. The lamination can also include openings adapted to contain conductors used to bring a synchronous motor up to synchronous speed as an induction motor.

Abstract: A temperature activated fan assembly preferably for an electric motor. The assembly includes a fan, a torque transfer means engagable with the fan for transferring torque to the fan and a first member which expands in response to a temperature increase. The expansion of the first member causes the torque transfer means to engage the fan. The first member is situated within the motor such that the first member causes the fan to operate when a critical temperature in the motor is reached. The first member can be fabricated as a rod or coil from a material having a suitably high coefficient of thermal expansion. The first member can also be fabricated from a memory material.

Abstract: An improved gasket sealing motor leads which extend from the interior of an electric motor enclosure. The gasket is provided with one or more resilient, conical bushings whose diameters extend through a wide range of lead diameters. By severing the bushings at an appropriate point, round apertures are formed through which the leads can be pulled and sealed. The flat portion of the gasket which surrounds the bushings is secured to the motor enclosure in a conventional manner.

Abstract: A permanent magnet rotor configuration which produces two magnetic poles. Two pairs of axial slots are provided in which permanent magnets are arranged about the rotor shaft. A third, diametrically opposed pair of slots is provided which extend radially outwardly and in which permanent magnets are disposed. Off-axis magnetic bridges are formed on either side of the third slots, separating them from the first and second sets of slots.

Abstract: A permanent magnet rotor configuration which produces four magnetic poles utilizing two sets of symmetrically-disposed permanent magnets. The slots carrying the magnets exhibit a truncated V-shaped configuration, extending from points on the periphery of the rotor to meet the ends of a straight, central portion which lies parallel to a tangent to the rotor shaft. A short magnetic bridge interrupts the center of each slot, the slots being disposed generally symmetrically upon opposite sides of the rotor shaft.

Abstract: A vertical electric motor embodying the invention has a housing including a cylindrical frame enclosing a stator, a rotor and a shaft affixed to the rotor and mounted for rotation about a vertical axis, upper and lower end frames, a heat generating thrust bearing supported on the top end frame and rotatably supporting shaft and rotor, and a lubricant-receiving reservoir within the motor enclosure above the top end frame and enclosing the thrust bearing. Liquid lubricant within the reservoir is in heat absorbing and lubricating relation with the thrust bearing. A plurality of finned heat transfer heat pipes are supported within the reservoir with their evaporator end submerged in the lubricant and their condenser end exposed to air within the motor housing above the top surface of the lubricant and enhance heat transfer from the lubricant to the atmosphere.

Abstract: A U-shaped slot liner is provided with a porous spongy longitudinal rib on each leg. The ribs mate with complementary grooves in the dynamoelectric machine coil slot, side walls and the conductor bar side walls. When the assembled machine element is impregnated by a thermosetting liquid, the ribs absorb the liquid and become hard when heated.

Abstract: A closure for securing conductor bars in the coil slots of a dynamoelectric machine consisting of a U-shaped clip which is inserted into the coil slots over the conductor with the legs of the clip extending between the sides of the conductor and the winding slot. Spring-like tabs which, in the preferred embodiment, are the lower portion of the legs bent upward, snap into longitudinal grooves provided in the side walls of the conductor slot when the top portion of the U-shaped clip contacts the top of the coil sides. This permits insertion of the slot closure from the top of the slot by merely pushing downward until the tabs snap into the side grooves.