Abstract: A food holding cabinet having a heating and air circulating system overlying the interior of the cabinet, the system including a blower having its inlet side connected to an air mixing chamber and its outlet side connected to an air heating chamber. The air mixing chamber has a first air inlet orifice at the front-top-center of the interior of the cabinet for recirculating air from within the cabinet and a second air inlet orifice in communication with the outside of the cabinet to introduce fresh air, the recirculated air and fresh air being admixed in the air mixing chamber and discharged into the heating chamber. From the heating chamber the air flows downwardly through a duct at the rear of the cabinet, the duct having rows of perforations aligned with the undersurfaces of product containing trays or baskets in the cabinet, the air being drawn through the cabinet for return to the mixing chamber.

Abstract: A realistic audio-visual effects generator for simulating anti-tank and a-aircraft missile launching. A pyrotechnic cartridge having disc at one end that ruptures and allows the efflux of the products of combustion to exit through a hole in the breech block which is placed at the muzzle end of the firing chamber. Along with the simulated cartridge discharge is electrical circuitry for determining if the cartridge has been properly chambered.The circuitry acts to prohibit firing should it be determined that incorrect installation has occurred. Upon initiation of firing a conventional laser transmitter is actuated for simulating firing of the weapon.

Abstract: This disclosure is directed to an acoustic Barkhausen stress detector apparatus and a method of obtaining measurements of stress in or determination of the microstructure of ferromagnetic materials. In the preferred and illustrated embodiment, stress or microstructure information in a ferromagnetic specimen is tested and measured through application of a variable magnetic field. A sensitive acoustic detecting device including an input transducer(s) and amplifier(s) forms a signal based on Barkhausen acoustic phenomena which arise from a change in the magnetic field strength. Barkhausen acoustic information is in the form of vibrations produced within the material which occur as magnetic domain walls shift. The domain wall shifts occur at various locations within the material of interest, and the acoustic vibrations are propagated through the material and are observable at the surface by one or more transducers.

Abstract: A combination fuel tank and carrying rack for a motor driven cycle with a rectangular tank having a fill pipe on the top with a cap and a gravity type fuel system. The top of the tank includes vertical side legs with slots and parallel rubrails to attach items for transporting. The tank further contains undercarriage arms and struts attaching directly to the motorcycle through fasteners provided thereon. Other embodiments include a travel trunk mounting channel attached rotatably to the side legs and a backrest with a cushion on the forward end.

Abstract: This disclosure is directed to improved equipment in detection of desired nuclei or electron response. In a magnetic field thought to be inhomogeneous, an improvement which incorporates means for summing repetitive samples is disclosed. Excitation is applied to the sample of interest, and the received signal is broken into samples over the life of the received signal and temporarily stored. The flux is varied by varying the magnet current, and several nuclear magnetic resonance signals are received. They are similarly sampled periodically and added to earlier responses. They are preferably stored in a buffer after conversion by an analog-to-digital convertor. After stepping through several magnetic levels, the testing is completed. The summation of the various signals is a signal enhancement technique which overcomes the lack of a uniform optimum field impressed on the sample of interest.

Abstract: A food holding cabinet having a closed loop air circulating system to control both heat and humidity, the system including a blower having an air inlet at the front-top-center of the interior of the cabinet, the outlet of the blower being connected to an elongated heating tube the discharge end of which directs heated air over a water reservoir containing a plurality of upwardly projecting removable heat transfer plates. The quantity of moisture introduced into the flowing air is controlled by varying the number of heat transfer plates. The heated and humidified air flows downwardly through a duct at the rear of the cabinet, the duct having rows of perforations aligned with the undersides of product containing trays or baskets in the cabinet, the air being drawn through the cabinet for return to the blower inlet. Heat is controlled by a temperature controller having a probe mounted in the inlet to the blower.

Abstract: A method and apparatus for enhanced nuclear magnetic resonance (NMR) discrimination and detection is disclosed. In the preferred embodiment, a sample which has a first atomic element is placed in a magnetic field of a first intensity. A reaction between the nuclei of the first atomic element and the electromagnetic field of the apparatus produces an NMR response which is tunable with field intensity. If the first atomic element of interest is present and intimately comingled with a second atomic element of interest, as might occur in compounds, and if the second element of interest has a nuclear quadrupolar moment and if the molecular structure conditions are proper for it to have a nuclear quadrupolar resonance (NQR), then adjustment of the magnetic field intensity varies the NMR frequency of the first element of interest to coincide with the NQR frequency of the second element of interest.

Abstract: An illuminated display warmer for displaying food products while maintaining them at proper serving temperature. The warmer includes glass front and sides, a base providing a flat heating surface, and a ceiling from which is suspended a radiant heater for warming the product in the warmer chamber. Separate convective air flow paths ventilate the warmer chamber and provide for a low external surface temperature. The warmer is particularly adapted to be mounted on a countertop. Recessing of a low profile base heater permits such mounting without danger of burning or scorching of the countertop.