Abstract: A transmission system that is used in conjunction with a microturbine engine for propelling an aircraft body, such as a propeller-based fixed-wing aircraft or a rotor-based vertical lift aircraft, or for a wide variety of other applications. The output shaft of the microturbine engine preferably operates at a rotational speed in a range between 72,000 RPM and 150,000 RPM with an output power between 150 HP and 5 HP (and most preferably operates in an extended range between 50,000 RPM and 200,000 RPM with an output power between 200 HP and 5 HP). The transmission system includes a traction drive stage that provides a reduction ratio preferably having a value of at least 7, and most preferably greater than 9. The transmission system is of small-size preferably having a maximum diameter less than twelve inches.

Abstract: An induction furnace apparatus and method for reducing the magnetic field produced by the operation of the furnace. The induction furnace including a refractory vessel, an induction coil, and an outer shell having a layer of metallic and magnetically permeable material. The metallic and magnetically permeable material comprising a plurality of elements having a shape and size that is chosen to maximize the packing density of elements throughout the layer. The outer shell further including a top, base, and sidewall arranged about the refractory vessel such that the metallic and magnetically permeable material is formed between the refractory vessel and the outer shell. The invention provides a method for casting metallic and magnetically permeable material with or without a non-conductive matrix. The castings can be formed into inserts or incorporated into the top, base, and side wall of the outer shell.

Abstract: A sling to hold and support a pillow or other stuffing material for use by patients during their recovery period from major surgical procedures such as cardiac, abdominal or pelvic surgical procedures. The sling supports the pillow or other stuffing material from the patient in a position to enable the patient to easily and quickly use the pillow or stuffing material as a "cough pillow". Supporting the "cough pillow" in close proximity to the area on which the surgical procedure is formed and in a position for ready access and grasping by the patient, enables the patient to have free use of their hands and upper extremities but yet maintains the pillow or stuffing material in position for immediate use.

Abstract: Glass-to-metal hermetic seal of the compression type in which a central metal eyelet is sealed to a central conductor, the eyelet being bondable to and having a coefficient of expansion characteristic compatible with glass in which the eyelet is made non-ferromagnetic to eliminate unwanted induction heating and losses in pulsatory current carrying operation. The method of forming the seal is disclosed.

Abstract: A pump system, particularly suitable for pumping wet mixes and slurries, achieves an output of pumped material substantially free from pulsations or fluctuations by control movement of power pistons (12A,12B) within power cylinders (10A, 10B). The power pistons (12A,12B) are connected by piston rods (14A,14B) to pumping pistons (16A,16B) which suck material to be pumped in through valves (20A,20B) and out through valves (22A,22B) into a delivery pipe (26). A closed loop (32) connects annular chambers (13A,13B) of the power cylinders (10A,10B), and a continuously operating pump (P2) feeds the closed loop (32). The power pistons (12A,12B) on their suction strokes move faster than on the delivery strokes, whereby one or other or both pistons (12A,12B) are always moving forwards.

Abstract: A gear box for a drive head of a conveyor comprises a casing 11 and a gear train contained within the casing 11 and including a plurality of shafts on which gear wheels are mounted, the shafts being rotatable about parallel axes and all the axes 16 being located in a common plane, with at least an output shaft having its axis of rotation off-set with respect to the common plane, whereby the at least one off-set axis is located above or below the common plane.

Abstract: A glass-to-metal compression sealed lead-in structure for electronic devices. The structure is constituted by an outer metal case having a high coefficient of thermal expansion (CTE), a lead-in conductor extending through the opening in the case and having a relatively low CTE, and a glass seal filling the space between the conductor and the case and having a relatively low or intermediate CTE. The conductor is fabricated of a machinable metal whose normal CTE is higher than required, the surface of the metal after the conductor is machined to specification, being treated with a substance that acts to reduce the CTE of the conductor to render it compatible with the CTE of the glass seal.

Abstract: The compound of the formula (VI): ##STR1## pharmaceutically acceptable salts and pharmaceutically acceptable esters thereof, are useful for their antibacterial activity and for their .beta.-lactamase inhibitory activity. They may be combined in a synergistically effective amount with a penicillin or cephalosporin for the treatment of bacterial infections in humans and animals.

Abstract: A novel antibiotic designated herein MM 17880 may be obtained from the cultivation of strains of Streptomyces olivaceus and related organisms. In addition to being potent antibacterial agents, MM 17880 and its salts inhibit .beta.-lactamase obtained from many organisms so that it shows a synergistic antibacterical effect when combined with .beta.-lactam antibiotics.

Abstract: This invention provides a process for the preparation of salts of the .beta.-lactamase inhibitory antibiotics MM4550A, MM13902 and MM17880, which are the compounds of the formulae (I)-(III), respectively: ##STR1## which process comprises cultivating a strain of Streptomyces gedanensis and isolating a salt of at least one of MM4550A, MM13902 and MM17880.

Abstract: A novel antibiotic designated herein MM 17880 may be obtained from the cultivation of strains of Streptomyces olivaceus and related organisms. In addition to being potent antibacterial agents, MM 17880 and its salts inhibit .beta.-lactamase obtained from many organisms so that it shows a synergistic antibacterial effect when combined with .beta.-lactam antibiotics.

Abstract: A novel antibiotic designated herein MM 17880 may be obtained from the cultivation of strains of Streptomyces olivaceus and related organisms. In addition to being potent antibacterial agents, MM 17880 and its salts inhibit .beta.-lactamase obtained from may organisms so that it shows a synergistic antibacterial effect when combined with .beta.-lactam antibiotics.

Abstract: A novel antibiotic designated herein MM 17880 may be obtained from the cultivation of strains of Streptomyces olivaceus and related organisms. In addition to being potent antibacterial agents, MM 17880 and its salts inhibit .beta.-lactamase obtained fromm many organisms so that it shows a synergistic antibacterial effect when combined with .beta.-lactam antibiotics.

Abstract: Clavulanic acid and its salts may be produced by cultivating a strain of Streptomyces jumonjinensis.

Abstract: This invention relates to oil burner installations which include a storage tank for the oil and a pump for delivering oil from the storage tank to a burner. When the storage tank is refilled with oil, sediment at the bottom of the tank is stirred up and placed in suspension. If the pump is operated while such sediment remains in suspension, the sediment may be drawn into the fuel line. Upon reaching the burner, such sediment may disable the oil burner installation by clogging the burner orifices.By preventing the oil pump from operating for a predetermined period of time after commencing to transfer oil into the oil storage tank, sediment is allowed to settle once again to the bottom of the tank. After the predetermined interval of time has elapsed, the pump and burner are once again permitted to operate, and the system then draws sediment-free oil into the fuel line and thence to the burner.