Abstract: Apparatus for the culture of aerobic, anaerobic organisms and tissue which is formed of two sections, one fitting with the other as a cover and has a lubricated open cell foam filter gasket having on one side a microporous membrane and on the other, a non-porous layer. The gasket is fitted to the cover section or onto the rim of the container section and minimizes the chances of contamination from the ambient or otherwise gaseous atmosphere of incubation of the culture or biological material contained therein when closed and/or in use.

Abstract: A hospital patient gown in which a front panel is joined to two rear panels to form a garment having an elongated vertical opening at the back. One of the rear panels is vertically pleated with a reverse pleat and draped across the rear opening when the rear panels are fastened together at the top of the gown.

Abstract: A virtual image display device for alpha-numeric and pictorial information. A concave spherical mirror segment magnifies and reflects an image from an image source. The image source is mounted between the focus of the mirror and the said mirror and parallel to its optical axis. The virtual image thereby formed is visible to the viewer in front of the mirror.In related embodiments, the concave mirror segment can be made partially reflective and placed in front of a camera lens to allow a camera to photograph through it. A planar mirror can also be included to fold the light path of the display and thereby reduce the size of the apparatus.

Abstract: A solar heating system in which the heating transfer medium is circulated from the heat absorbing member through the heat exchange area by means of gravitational forces which are augmented by the use of a transfer medium containing additives which change in state from fluid to gaseous as they move through the system. An emulsifying agent is also employed within the circulating fluid to prevent agglomeration of the additives. The use of one or more additives within the circulating fluid depending upon ambient conditions is disclosed.

Abstract: A paint mixing and conditioning apparatus in which a paint filled container is simultaneously tumbled end over end while being rotated about its longitudinal axis. The container is clamped to a pulley shaped disc which is rotatably carried by spaced resilient wheels journaled in an upstanding plate. The container clamp is disposed to extend across openings in the upstanding plate and disc. The pulley shaped disc is driven peripherally by a resilient drive wheel coupled to a power source to tumble the container. A beveled friction wheel, coupled to the container clamp and in frictional contact with the upstanding plate, rotates the container as the pulley shaped disc is turned.

Abstract: The outer wall surfaces of a building are formed with spaced elongated recesses to receive radiant solar energy. Elongated fluid bearing lines are partially disposed within the recesses and incorporated into a continuous fluid circulating system. Solar energy is absorbed by the wall surfaces and also reflected by the sides of the recessed to heat the fluid bearing lines. The specific cross sectional shape of the recesses and the location of the fluid bearing lines is designed to provide the maximum efficiency of the collector at a given location.

Abstract: A food product in the form of an elongated strip is provided with a coating of seeds by directing it upon the loading end of a conveyor belt, passing it through a wetting station and thereafter directing it from the discharge end of the conveyor belt onto a grooved drum. A quantity of seeds carried by a hopper is directed onto a surface of the drum in the area just prior to the contact point of the food product with the drum. The seed is received upon the bottom of the grooves in the drum and around the sides and top of the food product. A pressure roller in contact with the periphery of the drum urges the seeds into firmer contact with the food product. Excess seeds are recaptured and the seeded food product is directed from the apparatus.

Abstract: A photographic printing apparatus in which spaced photosensitive strips are secured to an image plane on top of a housing. An imaging font having two sets of identical symbols in spaced relationship is movably carried upon the housing overlying the photosensitive strips. Light is directed through selected portions of the imaging font upon one of the strips to form a latent image, which is subsequently developed and an instantly visible image on the other strip. The instantly visible image is used by the operator to space subsequent letters or symbols as the printing proceeds.

Abstract: A machine for trimming the edges of metal containers in which a plurality of upstanding, vertically disposed cams are positioned upon a table. A plurality of sliding cutters are provided equal in number to the cams. The cams are driven up and down by a vertically reciprocating platen below the table by means of a power source, a crank shaft and an arm coupling the crank shaft and platen. Various cam face shapes and cam followers are disclosed to provide the cutting sequence of the cutters.

Abstract: Sealing apparatus for overhead doors in which a horizontally disposed elastomeric reservoir containing a quantity of fluid is secured to a header above the door and spaced tubular elastomeric members are secured at each side of the door to the building structure. The tubular members are in fluid communications with the fluid in the reservoir. An elongated flat bar secured to the top of the door bears against the reservoir when the door is closed causing fluid to be forced into the tubular members, extending them into sealing contact with the side edges of the door, while the reservoir seals the edges along the top of the door. Opening of the door releases the fluid pressure permitting the tubular members to retract and return fluid to the reservoir.

Abstract: Disclosed is a process for recovering hydrocarbons from tar sands by contacting the tar sands with alkali metal sulfides or alkanol solutions of alkali metal hydrosulfides, at temperatures between 40.degree. C. and 450.degree. C., in the presence of steam or hydrogen or mixtures thereof, thereby producing at least partially, hydrogenated hydrocarbons lower in sulfur and nitrogen content than the initial untreated hydrocarbons of the tar sands and which readily distill from the sands.

Abstract: Petroleum crude and certain liquid distillate fractions derived therefrom, and other sulfur containing fuels or residues are reduced in sulfur content by intimately contacting the fuel or residues with alkanol solutions of alkali metal hydrosulfides, at temperatures and pressures from ambient up to the critical temperature of the alkanol for from 1 to 20 minutes. Thereafter, the fuel is caused to separate from the alkanol solution by the addition of water. A liquid-liquid separation separates desulfurized fuel from the alkanol solution. Hydrogen sulfide formed in the process is used to re-generate alkali metal hydrosulfide for use in desulfurizing additional petroleum fuel.

Abstract: Disclosed are culture media comprising an aqueous solution of a gelling agent, a compound such as a bleach capable of sterilizing the gelling agent and its container.Also disclosed is a method for sterilizing a culture medium without autoclaving same by dissolving a gelling agent in boiling water; adding cool water to the aqueous gelling agent solution; dissolving a sterilizing agent in the cooled solution adding nutrients and then growing the culture.

Abstract: A solar energy conversion panel is provided by means of which solar energy is recovered as converted electrical energy and also thermal energy. An array of solar energy collectors direct solar energy received from the sun upon photovoltaic cells within the collectors. The photovoltaic cells convert a portion of this energy into electrical energy. The balance of the solar energy is recovered as thermal energy which is carried from the panel by a circulating fluid. Specific shapes and arrangements of energy collectors are disclosed by means of which the energy recovered may be maximized. A means for protecting the panel from wind damage is also disclosed.

Abstract: The invention relates to a doll having movable jointed body parts, comprising a main body portion and limb portions, said limb portions being preformed individually, a body-shaped covering bag of air and fluid-tight material, joint regions between the limb parts being formed by the juxta-position of the limb parts within appropriate portions of said bag which holds the limb parts in their correct relationship with each other, and a fluid filling means introduced between the body and limb portions and the covering bag. If desired, the filling means may be a liquid, which is colored blood red.

Abstract: A container for holding organic waste matter while it is being decomposed biologically to produce methane gas and other products. The container also houses one or more paddlewheels which stir the waste matter and assist in maintaining it at constant, elevated temperature. Temperature control means include a temperature sensor, heating pipes, and two external heat exchangers for stabilizing the temperature of the waste material. In addition, a two-way valve (controlled by the temperature sensor) switches liquid in the heating pipes from one heat exchanger to the other to maintain the predetermined operating temperature.

Abstract: A tensioning device for the cable of a winch or hoist transmits rotational power from the drum, on which the cable is wound through a gear train to a traction roller which rubs against the cable as it passes into and out of the hoist. The gears rotate the traction roller in the same direction in which the cable is moving but at a speed which will always keep the cable under tension on the drum. Two overrunning clutches in the gear train transmit the rotary motion of the drum to the traction reel in either the cable payout or reel in operation.

Abstract: A photoprinting apparatus in which images of symbols on a flat transparency font are projected upon photosensitive material covered by a thin layer of photographic developer. Each symbol on the font is provided with a baseline control indicia and a selected symbol may be projected and viewed prior to exposure employing a light source which will not expose the photosensitive material. Baseline uniformity of the exposed symbols is maintained by sensors which receive an image of the control indicia and regulate the operation of font position adjusting devices prior to each exposure.Novel optical systems, image magnification and minification structures, exposure controls, rapid symbol selection devices, imaging fonts and a cassette for the photosensitive material are also disclosed.