Abstract: In mechanical seals adapted to perform in high temperature environments, fragile gaskets characterized by poor elasticity and conformability are used to perfect a seal between adjacent parts. Gaskets may be made of graphite, carbon, asbestos and/or fiberglass containing material. In order to perfect such a seal, gaskets with a parallelogram cross-section are used. They are expanded radially and their cross-section changed when placed between two parts during assembly.

Abstract: An elongated electric motor having an annular stator comprising a plurality of magnetic laminations and a rotor on a shaft comprising a plurality of segments in said stator with a plurality of bearing means supporting said shaft and rotor, the bearing means including journal portions adjacent the stator with a groove therein in which a spring is disposed. The spring frictionally engages the stator and the bearings and prevents rotation of the bearing because of the magnetic field of the stator.

Abstract: A system for clamping a bellows assembly of a mechanical seal to its flange in the minimum radial and axial space which comprises the use of set screws, the threads of which are received in openings defined in part by a body flange and in part by a bellows support ring. The portion in the support ring is threaded while the remainder is not threaded. The threads in the threaded opening portion may match those of the set screw, i.e., helical, or may be merely parallel, i.e. not helical. In the latter, the arc of contact between the threads is relatively small.

Abstract: A balanced mechanical seal structure is disclosed which is constructed to control the leak rate across the seal faces as a function of the pressure differential between the pressure in the stuffing box and the pressure in the seal chamber. The structure is particularly adapted for use in a tandem seal arrangement.

Abstract: An improved heat exchanger especially for use with a mechanical seal cartridge applicable for a pump-motor combination. The heat exchanger comprises an axial flow pump for supplying cooling fluid to the seal and axial shrouded fins and passages respectively surrounding a housing for the seals and inwardly in the housing, there being a path for the cooling fluid between the shrouded fins and the passages. Means are provided to direct cooling air through the passages and along the fins.

Abstract: A power transmission belt comprising an elastomeric body and longitudinally spaced, lateral stiffening members extending substantially the width of the body. The stiffening members may be of multiple piece construction and joined to a longitudinal reinforcing tension member in the body of the belt. Additional edge pads may be attached to the stiffeners at the edges of the belt. The belt of this construction is especially adaptable for use to transmit power in variable pulley drives and the like.

Abstract: A drive system for driving accessories associated with the engine of a vehicle and controlled by the speed of the engine crankshaft, constructed such that the rpm of each accessory is substantially constant over at least the major portion of the normal vehicle operating range regardless of increase in the rpm of the engine and its crankshaft. The drive is so constructed that the input rpm to each accessory increases at substantially the same rate as the rpm of the crankshaft to a first, predetermined speed; then the input to each accessory is substantially constant thereafter regardless of increasing engine speed to a second predetermined crank-shaft speed. This second predetermined speed preferably corresponds essentially to the established national speed limit.

Abstract: A mechanical seal assembly having a backup ring for a soft seal ring that minimizes distortion of the soft seal ring. A mechanical seal assembly wherein at least one of the seal faces is constructed and arranged to provide substantially constant seal balance as the seal ring wears down in operation.

Abstract: A separator assembly for separating different density fluids, such as gas and liquid, which comprises three stages, i.e., an inducer stage, a mixed flow impeller stage, and a centrifugal separator stage. The assembly is usually associated with a pump or pumps for pumping the separated fluids from the assembly. The inducer stage comprises a screw means which, with the impeller stage, delivers fluid to be separated into the separator stage. The impeller stage imparts rotary motion to the fluid. The centrifugal separator stage is a centrifuge and comprises inner and outer cylindrical members which rotate in unison and wherein centrifugal force on the fluid separates the heavier and lighter components, which components flow from the separator stage to the associated pump or pumps.

Abstract: An endless power transmission belt having a reinforcing and tension member, such as a cord or cloth strip, to which are attached, stiffener and about which is an elastomeric material. The stiffeners for providing lateral stiffness may be finger-like, at least in parts, and adhesively attached to the reinforcing and tension member or molded therearound. The stiffening means may be individual, side-by-side parts or a continuous member.

Abstract: To retain thrust washers and to prevent them from spinning or rotating at speeds less than the pump impeller with which they are associated, the thrust washers are slotted or split. The slotted or split washers expand due to centrifugal force and due to the difference in velocity across the face of the washer when the impeller spins; expansion of the thrust washer causes a braking force against the retaining ring on the impeller, so that the washer rotates with and at the same speed as the impeller.

Abstract: An endless power transmission belt having a reinforcing tension and lateral stiffening means, an endless one-piece plastic member. The member is formed with alternate rod-like portions and hinge portions and the entire member is bonded to the elastomeric body of the belt. Such belt is especially adaptable for transmitting power in variable pulley drives and the like.

Abstract: A water-absorbing material, such as silica gel, activated alumina and the like, is dispersed in the oil in which a submersible motor is operated, so as to absorb water which leaks into the motor housing. The water-absorbing material is then heated to a temperature at which the water is released. The water will flow, because of its specific gravity to a collection zone for removal to a location removed from the motor.

Abstract: A synchronous belt and pulley drive in which the drive between spaced pulleys is primarily by frictional contact of a belt on the pulley peripheries; synchronization is insured by providing spaced teeth on the belt which teeth are accommodated by tooth gaps in the periphery of the pulleys. The drive is further characterized by matching the pitch of the driveR pulley with the belt pitch under a first tension and matching the pitch of the driveN pulley with the belt pitch under a second tension, wherein the first tension is different and usually greater than the second tension.

Abstract: A variable pulley system incorporating driver and driven pulleys in which a flange of the driver pulley has a rim to receive the belt or the like connecting the pulleys in the final drive ratio of the pulleys.

Abstract: Submersible electric motors, i.e., those which operate in water or brine wells, are protected against the entry of the well liquid which may contain foreign matter by being submersed in a neutral liquid, such as refined oil. Apparatus is provided which includes a float to sense the interface between the oil inside the electric motor and the well fluid outside the motor, which float and a cooperating valve and an auxiliary oil pump provides a regulated flow of oil to maintain the interface of the oil and well fluid at a fixed location. The intrusion of motor damaging well fluid into the motor is prevented.

Abstract: A constant angular velocity joint for the transmission of rotational movements between two shafts includes a pair of driving members, each coupled to a shaft, one driving member having a plurality of generally equally spaced pivot means connected obliquely thereto so as to overlie the driving member, the other driving member being generally cylindrical and having a converging portion extending therefrom with a plurality of open ended, generally radial spaced slots therein, the spacing of which corresponds to the spacing of the pivot means. Each pivot means is received in one of said slots for relative movement with respect thereto depending on the angular position of said driving means.

Abstract: A tandem thrust bearing arrangement comprising a housing having a substantially vertical shaft journaled therein, which shaft has a load thereon, and independently mounted lower and upper thrust bearing means associated with the shaft. The lower thrust bearing means carries predetermined first portions of the imposed load while the upper thrust bearing means carries thrust loads in excess of the first part thereof, permitting full loading of the shaft in a limited spacial relationship.

Abstract: A bearing cartridge of integral construction comprising inner and outer races with sets of rollers therebetween and with an outer cylindrical configuration insertable and removable, as an integral unit, in and from a cylindrical opening in a housing or pillow block.

Abstract: A drive system for driving accessories associated with the engine of a vehicle and controlled by the speed of the engine crankshaft, constructed such that the rpm of each accessory is substantially constant over at least the major portion of the normal vehicle operating range regardless of increase in the rpm of the engine and its crankshaft. The drive is so constructed that the input rpm to each accessory increases at substantially the same rate as the rpm of the crankshaft to a first, predetermined speed; then the input to each accessory is substantially constant thereafter regardless of increasing engine speed to a second predetermined crankshaft speed. This second predetermined speed preferably corresponds essentially to the established national speed limit.