Abstract: A spit holder assembly comprises a longitudinally oriented hollow body having a triangular cross section and opposite ends, and an outwardly directed transverse flange connected to the body between the opposite ends thereof. A lower portion of the body on one side of the transverse flange comprises a base constructed and arranged to fit within an opening in a worktable with the flange functioning as a stop. An upper portion of the body on the other side of the flange includes at least a pair of spaced apart longitudinally oriented slots constructed and arranged to receive and hold a spit.

Abstract: A rotisserie arrangement comprises a spit rod, a diverter pan and a ring assembly. The spit rod includes a single projecting pin at one end thereof and a pair of projecting pins at the other thereof. The diverter pan includes a bottom wall with upwardly extending side and end walls, and each end wall includes a hook portion. The ring assembly includes an annular groove and an end plate with a pair of spaced apart openings in the plate to receive the pair of pins on that end of the spit rod. The hook portions of the diverter pan hook over the single pin of the spit rod and the annular groove of the ring assembly. When the spit rod is secured to the spit wheels of a rotisserie, the diverter pan remains bottom wall down during rotisserie rotation.

Abstract: A condiment holder comprises a top having a plurality of spaced apart openings therein constructed and arranged to receive condiment containers. A partial enclosure is connected to and extends below the top. The enclosure includes a bottom wall generally parallel to the top, opposite upwardly extending end walls connected between the top and bottom walls, and front and back partial side walls that extend between lower portions of the end walls. At least one of the end and bottom walls has a plurality of air circulation openings therein to facilitate the flow of refrigerated air.

Abstract: A smoke detector (1) has a spherical chamber (2) including a plurality of holes (15,17) for allowing smoke and other particles to enter the chamber. The majority of the internal surface (3) of the chamber (2) is covered with a high reflectivity Lambertian surface, that is a material that scatters incident light equally in all directions and at all wavelengths. The remaining portion of the internal surface (3) is coated with a light absorbing material (13) such as a matt black coating. A scatter sensor (9) is directed towards the absorbing coating (3), and an integrating detector (5) is configured to detect radiation directly from the entire Lambertian surface. A first LED (19) emits blue light into the chamber (2), and a second LED (21) emits infrared light into the chamber. Processing means (23, 25 and 27) are provided to analyse the signals from the detectors (5,9), including means for discriminating between signals from the sensors indicative of different frequencies of received radiation.

Abstract: An enclosure for a worktable having a top four corner support posts with an undershelf releasably secured to the posts below the worktable top primarily comprises a pair of opposed side panels each including front and back vertical curved portions for placement around opposed pairs of front and back support posts. A horizontal lintel is releasably attached to the front underside of the worktable and the front vertical curved portions of the opposed side panels. A pair of front doors immediately below the horizontal lintel are either hingedly secured to the front vertical curved portions of the opposed side panels or slidably mounted in tracks to provide access to the space between the worktable and the undershelf.

Abstract: A condiment holder comprises a top having a plurality of spaced apart openings therein constructed and arranged to receive condiment containers. A partial enclosure is connected to and extends below the top. The enclosure includes a bottom wall generally parallel to the top, opposite upwardly extending end walls connected between the top and bottom walls, and front and back partial side walls that extend between lower portions of the end walls. At least one of the end and bottom walls has a plurality of air circulation openings therein to facilitate the flow of refrigerated air.

Abstract: The present invention is directed to a device for locking modular cafeteria units that can form a cafeteria line up. The device comprises two sub-assemblies: (A) a male bullet catch; and (B) a female receiver with a locking plate. The male bullet catch has a single annular groove cut to mate with the locking plate of the female receiver assembly. The spring-loaded receiver releasably mates with the male bullet catch to connect the cafeteria units.

Abstract: A smoke detector is disclosed in which smoke particles are detected by the collection and detection of blue light and infra-red radiation which are emitted into a predetermined path through a scattering volume where the particles may be present. The scattered blue light and the scattered infra-red radiation are collected by an ellipsoidal mirror and focussed onto a suitable detector and then compared to produce an output which indicates either that the detected particles are smoke particles or that they are not smoke particles. The radiation collected by the mirror has been scattered through angles substantially less than 45° and preferably between about 10° and 35°.

Abstract: In an apparatus for monitoring a hydrocarbon flame, a plurality of radiation sensors detect electromagnetic radiation emitted by the flame. Each of the sensors is provided with a narrow band filter so that the corresponding sensor is responsive only to a narrow range of wavelengths. In this manner, one of the sensors is made responsive to emissions due to transient species in the flame and one of the sensors is made responsive to emissions from a non-transient species in the combustion region. The signals from the radiation sensors are converted to digital and applied to a central processing unit where they are compared to produce an output indicative of the combustion conditions in the flame. An output unit responds to the output signal from the central processing unit to adjust the air fuel ratio in the flame to a desired level, such as just above stoichiometric.

Abstract: A relatively small diameter, relatively deep hole is made in the ground and a sampler tube is inserted therein. An acetate sleeve is detachably inserted into a chamber on the upper end of the sampling tube and the sampler is left for at least sixteen hours and preferably longer in order to permit radon gas to migrate up the tube. Daughter products of radon deposit on the acetate film which is then placed in a scintillation cell attached to the counting chamber of a scintillation counter, which counts the alpha emissions of the daughter products thereby permitting the amount of radon gas to be calculated. This method reduces considerably any contamination of the scintillation counting chamber so that cleansing is not necessary thus permitting a much higher level of productivity. The system is also totally insensitive to thoron so that no correction for thoron signals is required.