Abstract: A product and method for the presentation of prerecorded audio-visual sets of related words or phrases for their learned association is disclosed wherein the learner is presented simultaneous and sequential audio material while viewing spatially compatible visual representations. The first auditory presentation directs a known stimulus to the learner's left ear and an unknown response to the right ear. The stimulus is at a lower intensity than the response and the onset of the stimulus is slightly before or simultaneous with the onset of the response. The next auditory presentation directs the response term to both ears. The auditory presentations are concurrent with exposure to visual representations of the stimulus and response terms. This optimal combination saves time, improves performance, and enhances the efficiency of rehearsal for learning the association of the verbal stimulus-response materials.

Abstract: An apparatus for preheating an engine is disclosed. The apparatus comprises a liquid fuel burning heater, a coolant pump for circulating engine coolant through the heater, a fuel pump for delivering fuel to the heater, a blower for delivering air to the heater, and a control module for maximizing the output of the heater. The heater comprises a liquid fuel burner and a two stage heat exchanger--the first stage for transferring heat produced by the burner to clean air supplied by the blower, and the second stage for transferring heat from the clean air to the engine coolant. The heater also produces a clean hot air discharge for heating an engine compartment, battery compartment or operator's compartment.

Abstract: A composite vacuum bag material includes a flexible fabric of polymeric material having a void free layer of elastomer bonded to one side. The exposed fabric surface, treated with a release agent provide air passageways when applied against the surface of an article during vacuum bagging.

Abstract: A method and device for gathering a mainsail in a cavity within the boom as the sail is being lowered. The boom has a plurality of engaged rollers which draw in or let out the sail by tractive forces.

Abstract: A railway brake shoe adapted to be mounted on a standard brake head and having a wheel engaging surface with portions having a plurality of radii for matching rail wheels of different diameters. The portion having the smallest radius extends along the entire wheel engaging surface such that during braking the relationship between the brake head and shoe is such that the shoe will not vibrate.

Abstract: A freeze-thaw stable banana product containing frozen ground banana pulp and a stabilizing system of agar and carob bean gum.

Abstract: A method and apparatus are disclosed for quickly and exactly locating a desired structure in a specimen or the like located on a plate or slide, and then preparing an accurate, embedded specimen block for later use, and particularly for preparing thin sections, e.g., 0.1 microns or less, on a microtome machine, for microscopic examination.

Abstract: An improved air atomizing spray gun accommodates selective control over flows of air for atomizing liquid coating material into a conically-shaped spray and for forming the spray into a fan-shaped pattern. In one arrangement of the gun structure, respective supplies of atomizing and fan-shaping air are connected to the gun and separately coupled to atomizing and fan air outlet orifices. In another arrangement, only the supply of atomizing air is connected to the gun, and a valve on the gun adjustably diverts a portion of the atomizing air for fan-shaping purposes.

Abstract: A rapidly cleanable rotary atomizer is characterized by a passageway extending between a rearward coating material cup of the atomizer and a forward coating material feed surface, from an edge of which atomization occurs. The passageway initiates in the material cup at a non-zero radius from the atomizer axis and terminates on the material feed surface at the axis. During changes of coating material, the passageway enables flushing media to be introduced from the material cup onto the material feed surface immediately at the axis of rotation of the atomizer for quickly and thoroughly cleaning the entirety of the material feed surface.

Abstract: In railway brake rigging wherein a bottom actuating rod extends beneath the bolster, a safety guard is provided to prevent a broken or disconnected rod from falling onto the track structure. The safety guard, which does not require any disassembly of the rigging or special tools, comprises a flexible cable having a pair of strands at each end of predetermined length. The end of one strand is secured to a connector, and the end of the other strand is releasably secured to the connector through a slotted opening. The safety guard is easily installed by looping the strands at both ends of the cable around the brake beam and securing the free strands to the connector.

Abstract: A lock for a VHS video cassette is characterized by an insert extendible into and latchable within a sensor LED transmission receptacle of a housing for the cassette. The insert cannot be removed from the receptacle without a special key, and while in the receptacle presents a physical obstruction to the cassette being inserted into a video cassette recorder. The lock thus provides a convenient means to prevent unauthorized playing of a video cassette.

Abstract: A lift is described for raising the rear end of a trailer at a dock. The lift is entirely mounted above ground level and includes a reinforced platform having a rigid U-shaped beam support assembly secured at the forward end of the platform. The support assembly includes a pair of upstanding legs, which contain hydraulic cylinders for raising and lowering one end of the platform.