Abstract: New substances designated as DC-45-A, DC-45-B.sub.1 and DC-45-B.sub.2 and represented by the following general formula: ##STR1## wherein (i) R.sub.1 and R.sub.2 together with the carbon atom therebetween represent the group ##STR2## and R.sub.3 represents ##STR3## (designated DC-45-A); (ii) R.sub.1 represents --OH, R.sub.2 represents --CH.sub.2 OH and R.sub.3 represents ##STR4## (designated DC-45-B.sub.1); or (iii) R.sub.1 and R.sub.2 together with the carbon atom therebetween represent the group ##STR5## and R.sub.3 represents ##STR6## (designated DC-45-B.sub.2). DC-45-A, DC-45-B.sub.1 and DC-45-B.sub.2 possess antibiotic and anti-tumor activity and may be obtained by culturing a microorganism of the genus Streptomyces. Preferred strain is Streptomyces bottropensis (FERM-P No. 5219; NRRL 12051).

Abstract: A camera includes a manually adjustable photographic parameter such as diaphragm aperture, shutter speed, focus distance or the like and an electrically energizable network indicating the value of the adjusted parameter or a related value. The indicator network is connected through a normally open signal controlled semiconductor switch to a current source and a device is located on the manually accessible face of the photographic parameter adjusting member and is electrically connected to the switch network input and is touch responsive to produce of switch network closing signal so as to automatically energize the indicator network upon manual engagement of the adjusting member. The sensing member is alternatively a pair of spaced conductor electrodes or a piezo-electric element and the switch is respectively responsive to resistance or voltage values applied to its input. A network is provided for opening the closed switch after a predetermined period.

Abstract: A camera including an objective lens device whose focal length is manually changeable, is automatically switched from a natural light photography mode to a flash photography mode when a low brightness condition detecting means generates a low brightness signal upon detection of a low brightness condition. A control means causes the detecting means to generate the signal at different brightness conditions in accordance with the change in the focal length of the objective lens device so that the automatic switching of the camera to the flash photography mode is effected with a higher brightness condition in the case of a longer focal length.

Abstract: Antibiotic AM-3603 which is also designated as irumamycin is represented by the following formula: ##STR1## This substance is active upon certain Gram-positive bacteria, phytopathogenic fungi and dermatophytes, and is of interest in treating various diseases of humans and animals caused by infectious bacteria and fungi and also useful for agricultural purposes. Antibiotic AM-3603 may be prepared by fermentation, in which a microorganism capable of producing AM-3603 is cultured in a medium to accumulate AM-3603 in the cultured broths, from which AM-3603 is recovered. A preferred strain is Streptomyces sp. AM-3603 (FERM-P 5619; NRRL 12518).

Abstract: A framing mirror provided on the front part of a camera for enabling observation of the range of the scene to be photographed from the front of the camera is used for various displays by a liquid crystal display device. Various operation modes are set by a mode selection member and the state of the display portion of the liquid crystal display device arranged in front of the framing mirror changes in accordance with the set operation mode to effect various displays. In at least one of the operation modes the whole display portion of the liquid crystal display device becomes transparent, whereby it is possible to observe the framing mirror from the front of the camera. Alternatively, the framing mirror has a transparent portion at a marginal position and the liquid crystal display device is arranged behind the transparent portion so as to be observable from the front of the camera.

Abstract: An improved toy punching bag support construction to substantially increase the utility of the toy to the user. Its base support is hollow and can be filled via removable plug with sand or water to significantly increase the weight of the support. The added weight allows the user to punch and circle the bag without having to stand in a stationary position on a support base to secure the bag. A flexible vertical rod has an upper end connected to the bottom end of the bag. The lower end of the rod is adjustably mounted in a pipe. The pipe extends into a sleeve and is fixed relative to the sleeve by a threaded nut at the bottom and a welded stop at the top. The sleeve extends vertically through the base support and has upper and lower shoulders spaced inwardly from the top and bottom walls of the base support.

Abstract: A plurality of sectors start opening in response to operation of a sector opening drive ring, and upon elaspe of a predetermined interval of time to provide a desired exposure time, a sector closing drive ring is released to permit the sectors to start opening, and at the same time the sector opening drive ring is braked until it is stopped, whereupon simultaneous movements of the drive rings are prevented. Therefore, the sectors are opened or closed stably by the operation of either one of the drive rings, assuring an exposure time which is stable and accurate.

Abstract: Optical devices such as a camera body and an interchangeable lens coupled to complementary optical devices by a bayonet coupling allow interchange of the complementary optical devices independently of whether or not the type of position restriction thereof matches with that of the complementary optical devices. In an embodiment of a camera body, both a radially inwardly operating type position restricting member and an optical axis direction operating type position restricting member are provided together with a position restriction release button.

Abstract: Lysophosphatidic acid and the physiologically compatible salts thereof possess particularly advantageous properties as emulsifiers for use in foodstuffs and in particular exhibit unexpectedly good results when used in a process for making dough, for use in the production of farinaceous products, in which a wheat flour is mixed with 0.01 to 2.0% by weight (based on the weight of wheat flour) of lysophosphatidic acid or a physiologically compatible salt thereof.The emulsifiers of the invention comprise a mixture of phospholipids, the mixture comprising lysophosphatidic acid or a physiologically compatible salt thereof in an amount of at least 30 mol %. The emulsifiers may be prepared by treating a mixture of phospholipids with phospholipase D and phospholipase A.

Abstract: A camera includes an internal cover plate which is supported independently of a camera back cover for movement between covering and uncovering positions where it covers and uncovers a film take-up chamber respectively. When the internal cover plate is in the covering position, its inner surface contacts a leader portion of a film pulled out of a film cartridge received in a film cartridge chamber, for preventing a sprocket hole of the leader portion of the film having engaged one of sprocket pawls of a sprocket from being disengaged therefrom. The sprocket is provided at a position past an exposure station for transportation of the film toward the film take-up chamber.

Abstract: A process for the preparation of a diesel oil--heavy oil mixture for use as an engine fuel includes the steps combining the two oils proximate the engine, heating the mixture to obtain the required overall fuel viscosity and continuously supplying the heated mixture to the engine for injection into the cylinders. Unused, heated fuel is continuously recirculated to maintain the availability of fuel at the proper viscosity.

Abstract: A tread for a tracked vehicle comprises a continuous, flexible base member formed into a track loop having inside and outside surfaces. A plurality of tread elements project outwardly from the base member, with each of said tread elements having the form of a truncated rectangular pyramid. A plurality of triangular gear teeth are mounted upon the inside surface of said base member in registry with said tread elements. The base member may comprise an inner core of steel mesh covered with a rubber coating.

Abstract: A process for producing interferon inducers from the plants, comprising extracting a water-soluble interferon inducer with water from the tissue of a plant selected from the genera Atractylodes, Lonicera, Plantago, Lithospermum, Ligusticum, Cnidium, Bupleurum, Notopeterygium, Heracleum, Aralia, Panax, Polygala, Sophora, Euchresta, Astragalus, Sinomenium, Stephania, Cocculus, Cimicifuga, Rheum, Gastroida, Asparagus, Pinellia, Evoida and variants thereof capable of producing said interferon inducer at a temperature of from ambient to the boiling point of the extraction mixture for a period sufficient to extract the major portion of said interferon inducer present in the plant tissue, forming a supernatant, fractionating the supernatant to yield fractions containing the major portion of said interferon inducer in the supernatant and recovering said interferon inducer therefrom. Preferably, the fractionation may be effected by ultrafiltration.

Abstract: This invention relates to skin bleaching compositions for localized application based on hydroquinone in anhydrous cosmetic formulations.

Abstract: A process for improving the quality of whey protein, characterized by maintaining whey protein solution at a pH of from 8.5 to 11.5 and a temperature of from 35.degree. to 50.degree. C., adding to the solution a mixture of at least one acid selected from citric acid, phosphoric acid, polyphosphoric acids, phytic acid and oxalic acid with at least one acid selected from hydrochloric acid, sulfuric acid, lactic acid, tartaric acid, succinic acid and maleic acid so as to adjust the pH of the solution to 6-8. By the process of this invention, it is possible to obtain a whey protein having improved brittleness and excellent bending strength.

Abstract: New antibacterial compounds, DC--45--A.sub.1 and DC--45--A.sub.2 are produced by fermentation of a microorganism belonging to the genus Streptomyces. The antibiotics are accumulated in the culture liquor and are isolated therefrom. These compounds are also prepared by acid hydrolysis of known compounds, DC--45--A or DC--45--B.sub.2. DC--45--A.sub.2 is also prepared by acid hydrolysis of DC--45--A.sub.1.