Abstract: This disclosure relates to a frame adapted to be attached to a hopper car, a door plate slidably mounted on the frame, and an automatically engageable lock mounted on the frame adjacent the door plate and operable to hold the door plate closed when engaged. The lock includes pivotably mounted parts including a latch. One of the parts, which may be the latch, has a seal hole therein, and this seal hole is aligned with another seal hole in the frame when the lock is engaged. The seal holes are spaced from an adjacent edge of the frame a distance which is related to the size of the seal band such that there is little slack in the seal when the parts are coupled together. Further, the parts are shaped to require a substantial turning movement of the latch before the lock is disengaged, and the latch is unable to turn this distance because of the small amount of slack in the seal. Consequently the lock is prevented from accidentally disengaging when the seal is in place.

Abstract: A dual rotor disc brake utilizing spot or segment type friction pads. The rotors and friction pads are axially movable for contact by adjacent ones thereof and major portions of the rotors rotate free of contact with the friction pads.

Abstract: A two-stage cascade flow fluid catalytic cracking process capable of converting high molecular weight hydrocarbons containing catalyst poisons into products of lower molecular weight with high activity cracking catalyst susceptible to catalyst poisons, the cascade flow process resulting in higher yields of desired motor fuel fractions than those obtainable with conventional riser flow fluid catalytic cracking processes. Catalyst poisons, e.g.

Abstract: A fluid motor moves a lever to turn a power screw mounted for rotation by a pair of axially spaced bushings. External threads on the power screw engage internal threads on an actuator and slide or translate the actuator and a piston in a brake-applying direction. A spring moves the piston in the opposite direction to a rest position. A cap fits over a medial flange of the power screw and has a spline connection with the actuator to prevent rotation of the actuator. Four bolts connect the fluid motor mounting bracket and the cap to a caliper which slides on parallel pins fixed to a torque plate secured to a vehicle axle.

Abstract: An injector for implanting materials comprising a hollow tubular sheath with a sharpened point suitable for injecting into human tissue and a slotted needle slidably and rotatably mounted inside said sheath, the sheath being retractable to expose any portion or all of the slotted needle, and the needle being rotatable within the sheath. This device is employed for implanting radioactive seeds in human tissue for treatment thereof.

Abstract: A process for conversion of paraffinic base petroleum cracking stocks to high octane motor fuels and petrochemical feedstocks in which paraffinic components are separated from the cracking stock to yield a deparaffined fraction which is hydrotreated and catalytically cracked and a paraffin fraction which is separately catalytically cracked whereby improved yields of normally gaseous olefins and normally liquid products including high octane motor fuel components are obtained.

Abstract: An alternator, including a rotor unit, a housing and stator unit rotatably mounted to and supported by the rotor unit, includes apparatus for mounting the alternator to the end of a rotating axle of a railroad vehicle.

Abstract: Stable, pumpable slurry compositions of finely divided solid carbonaceous material in water are described. The composition includes a gelling agent to provide a supporting gel having a yield stress and a viscosity builder to reduce the bleeding of the supporting gel.

Abstract: The invention relates to a friction pad for a disc brake and a disc brake assembly in which the friction pads are slidably supported by tabs extending radially outward of the friction pad backing plates on spaced, axially extending, radially converging edges of an aperture provided to the disc brake caliper. The friction pad includes an abutment surface adjacent each edge of the tab to locate the friction pad relative to an inner surface of the caliper.

Abstract: A casement type window is composed of a frame and sash which are independently made, each comprising a unitary prefabricated synthetic plastic shell having bonded therein a wooden frame which faces interiorly of the building wherein the window is mounted. Synthetic plastic elements of the frame or sash are accurately associated and brought together under pressure at mitered corner abutment joints which are heat fused to form an integral self supporting member before being united with their wooden frame components.

Abstract: This invention relates to an adaptive demodulator for use in a phase shift keyed microwave communication system. The adaptive demodulator improves the system error rate at a particular carrier to noise ratio by monitoring the output of the demodulator and optimizing the phase offset of the carrier signal recovered in the demodulator to provide a high output. A particular example continuously varies the phase offset of the recovered carrier signal about the highest output value to track variations in the optimum phase offset.

Abstract: A fabricated backstop for an end-of car cushioning unit in a railway car. The backstop is composed of two plate members or pieces which are welded separately to the inside of a center sill. One backstop piece is a generally U-shaped vertical plate member which is welded about its entire outer circumference to the inside of the center sill and provides an over-solid stop. The second backstop piece is a horizontal plate member positioned in contact with the rear face of the vertical plate member and having a cutout portion to receive an end collar of an end-of-car cushioning device. The horizontal plate member is welded at its front face to the vertical plate member and at its outer sides to the center sill to provide a rear buff stop and a rear draft stop.

Abstract: A surgical splint has identical, symmetrical, oppositely disposed longitudinal support members facing surfaces of which are a surface of a continuous, soft, thin elastic web of uniform thinness. The web is bonded to an outer layer of the same or similar elastic, soft material. The web and outer layer extend, at the ends of the members, between the members, forming connecting elastic bands, integral with the support members. Each of the support members has, extending lengthwise of the member, intermediate but short of the sides and ends of the web and outer layer, and sandwiched between the web and outer layer, an envelope of woven fabric within which is a steel stay. The envelope is made up of a web sheet and a smaller outer sheet, and is preferably sealed around its edges and also is sealed within and between the web and outer layer.

Abstract: An electron image projection mask consisting of an optical mask comprising a transparent substrate, bearing an opaque mask pattern disposed on the substrate, a transparent coating extending over the mask pattern and the areas of the substrate exposed through the apertures in the opaque mask pattern, and a metal image extending over the transparent coating. The metal image has a pattern corresponding to the apertures in the opaque mask pattern, the optical density of the metal image being such as to reduce the average light transmission through the apertures in the mask to a value between 25 and 80% of the average light transmission of the apertures in the absence of the metal image. Also, a method of producing the electron image projection mask.

Abstract: A vehicular battery charging system particularly adapted for railroad cars such as cabooses, in which an axle drive/hydraulic pump unit is coupled to the end of an axle via a flexible coupling and right angle gear drive. The hydraulic pump provides hydraulic pressure to a hydraulic motor/alternator unit. The a.c. output from the alternator is rectified and the resulting d.c. is employed to charge the batteries at a voltage which is very accurately controlled by a voltage regulator. The regulator comprises a switching circuit controlling the excitation of the field or rotor winding of the alternator by the rectified alternator output, in response to a repetitive pulse signal from a free-running multi-vibrator.

Abstract: An end-of-car railway car cushioning unit has a cylinder and a cylindrical piston mounted in the cylinder with the piston rod secured to the piston extending through an opening in the rear end of the cylinder with the piston forming a high pressure fluid chamber on the front face thereof and a low pressure fluid chamber on the rear face thereof. The piston has a plurality of openings therethrough and a metering valve is mounted in each of the openings to meter fluid flow between the low pressure chamber and the high pressure chamber. Each metering valve has a buff flow passage and a restricted draft flow passage. At least one selected metering valve has a cylindrical extension thereon projecting from the front face of the piston and adapted to engage an end wall of the high pressure chamber as the piston approaches the end of its buff stroke to block the flow of fluid from the high pressure chamber to the associated metering valve adjacent the end of the buff stroke.