baber/WOPTO huggingface dataset:
Patent GB-1268811-A (GB)
Title: Improvements in or relating to microwave devices
Inventor: KELL ROBERT CHRISTOPHER
IPC: H01P1/203
Filed: 1969-04-22
Abstract: 1,268,811. Insulating materials; filter assemblies; printed circuits; microwave filters. GENERAL ELECTRIC CO. Ltd. 26 June, 1970 [22 April, 1969; 11 Dec., 1969], Nos. 20465/69 and 60579/69. Headings H1A, HlB and HlW. A narrow band, high Q filter, Fig. 1, designed to operate at a frequency of 4 GHz, comprises five resonator discs 1 formed of a specified ceramic material, each disc being adapted to resonate in the TE 011  mode. The resonator discs are supported in a copper outer casing 2, by means of a tube 3, cylindrical spacers 4 and rings 5, all formed of a low loss, low permittivity dielectric material, the tube 3 being closed at both ends by copper caps 6. The resonator discs 1 have central holes 7 into which are inserted rods 8 of the same material as the discs, and tuning screws 9 are used to bear upon the rods 8 to adjust the resonant frequency of the discs as required. Two 50 ohm type-N connectors (10, Fig. 2, not shown) are used, the signal input and output being via copper coupling strips (11, 12) supported by rings. The ceramic of which the discs are made consists essentially of one or more compounds of the general formula ABO 3 , where A is barium, strontium or calcium and B is zirconium, or both zirconium and titanium in atomic proportions of at least 80% zirconium and not more than 20% titanium, the composition of the ceramic material being so chosen that it does not include significant amounts of both barium and titanium and the material will have, at microwave frequencies, permittivities in the range of 25 to 75, a substantially constant temperature coefficient of permittivity, and a loss tangent not exceeding 0À005 at 20‹ C. The microwave losses of some of these materials, especially the barium strontium zirconates, can be reduced by the addition of a small proportion of niobium pentoxide and/or tantalum pentoxide. The ceramic material may, alternatively, be used as the substrate (16, Figs. 4, 5, not shown) on which is formed a filter circuit in microstripline. A metal coating is formed on the opposite side of the substrate to the circuit and both this coating and the circuit are formed of chromium covered with gold, by evaporating the chromium and the gold on to the face of the substrate, increasing the gold layer by electroplating, part of the coating being then removed by photo-etching to leave the desired circuit. The ceramic material is produced by preparing an intimate mixture of suitable powdered starting materials in the required relative proportions, pressing the mixture, and heating the pressed compacts to effect reaction and sintering. To ensure accurate reproduction of the properties of the ceramic material two compositions may be prepared, these compositions departing from the preferred composition in opposite directions, the powders of the compositions being then mixed to give the required properties.
Patent GB-1326856-A (GB)
Title: Audible signal circuit
IPC: G08B19/00
Filed: 1971-12-31
Abstract: 1326856 Sound producing devices C A BRIGGS CO 31 Dec 1971 [23 Feb 1971] 60939/71 Heading G5J An electronic circuit (Fig. 1) for an audible signal or alarm device comprises two unijunction relaxation oscillators, connected at the emitters in such a way that the oscillation frequency produced by Q 1  is modulated by and at the same frequency as the oscillations from Q 2 . Thus, after amplification by transistors Q 3  and Q 4  an audible tone, whose frequency varies in time, is produced, by means of the loudspeaker 15. The frequency of both oscillator Q 1  and Q 2  may be varied by means of variable resistors 10 and 12 and by altering the value of capacitance, in either oscillator, by opening or closing switches SW 1  or SW 2  respectively. Modulating oscillator Q 2  may be disabled by closing SW 3 , thereby producing a non.varying tone signal, the frequency of which can be varied by SW 1  and variable resistor 10. Switches SW 1 , SW 2  may be manually operated, Fig. 3 (not shown) or automatically operated by a programmable control device; Fig. 2 (not shown) which actuates the operation of the device in response to a command from sensing circuitry. In addition, the control device may be programmed to operate SW 1 -SW 3  in different permutations, in response to different sensed conditions, thereby initiating different tone signals corresponding to different situations.
Patent GB-634133-A (GB)
Abstract: 634,133. Follow-up systems. TOTALISATORS, Ltd. (Automatic Totalisators, Ltd.). Oct. 16, 1947, No. 27723. [Class 40 (i)] A relay unit for passing the indications of a totalisator odds computer to an indicator comprises a sheave 11 rotated by a weighted cable 19 moved to and fro by a known computer in accordance with the odds variations. This sheave rotates the crown-wheel 13 of a differential gear, the other crown-wheel being initially held. The resulting movement of the planetwheels 15 turns -a cam 20, the two halves of which are of different radii running smoothly into each other, giving two rest positions 21 in which two cam followers 22, 23 hold the movable arms 52, 53 (Fig. 5) of a pair of switches in a central inoperative position as shown. Rotation of the cam allows spring bias to close the switch through the follower which rides on to the lesser radius and closes the switch on the larger so as to rotate a motor 8. This motor drives an output sheave 43 winding a cable 44 to operate an odds indicator and at the same time rotates the second crown-wheel 14 of the differential to bring the cam back to the position where both switches are open. Motor 8 may also be geared to a Selsyn generator 9 to operate further distant repeaters.
Patent GB-649899-A (GB)
Abstract: 649,899. Reciprocating pumps. BRIGHTWELL, B. N. S. Jan. 9, 1948, Nos. 765 and 8198. [Class 102(i)] Apparatus for dispensing viscous liquids comprises a cylinder 1 containing a bucket 5 having a non- return valve 7, a hollow rod 3 secured to the bucket and passing through a gland 2 in the base of the cylinder, the rod having one or more apertures 4 whereby upon the outward stroke liquid is delivered through the hollow rod and upon the instroke, when the outer end of the rod is closed by the hand, liquid passes from the upper to the lower side of the bucket. A hand knob 11 is provided for actuating the bucket. A reservoir 14 may be formed integral with the dispensing apparatus or the latter may be provided with a flange for attachment to a standard " lever lid type container A baffla 9 is provided to prevent " channelling " of the liquid in the reservoir. The stroke of the bucket may be varied by washers 10 of different thicknesses.
Patent GB-681035-A (GB)
Abstract: 681,035. Typewriters &c. NATIONAL CASH REGISTER CO. June 22, 1948 [Dec. 6, 1947], No. 9447/50. Divided out of 680,992. Drawings to Specification. Class 100 (iv). An accounting machine has a travelling record-material carriage on which is mounted a platen divided into two sections, automaticallyoperating line-spacing mechanism being provided for rotating the platen there being a device which can be set so that either (a) both platen sections are rotated together in all carriage positions, (b) one section operates in certain carriage positions and the other in other positions, and (c) both sections operate in certain positions but one section only in other positions. The embodiment described is the same as that disclosed in Specification 680,992. Specifications 681,029, [Group XIX], and 681,034 also are referred to.
Patent GB-2001931-A (GB)
Title: Tape magazine
IPC: G11B15/70
Filed: 1978-07-28
Abstract: A magazine 10 including a fixed hub 14 having a central opening 16 and an endless loop of tape 20. 20 is coiled about the hub 14 and extending from the innermost wrap in the coil 22 through a slot 17 in the hub 14, across the central opening 16 and then around one side surface of the coil 22 to the outermost wrap of the coil 22. A tape drive mechanism such as capstan 53 and pinch roller 68, tape guides 62,63 and a transducer 51 of a recording and/ or playback machine 50 can be positioned in the central opening 16 to pull tape 20 through the slot 17 from the inner wrap of the coil 22 and accurately guide the tape along a path past the transducer 51. The mechanisms of the playback machine 50 enter the opening 16 through cooperating apertures 30 in a plate 29 affixed to one axial end of the hub 14. <IMAGE>
Patent GB-2029776-A (GB)
Title: Floats for Swimmers
IPC: B63B35/79
Filed: 1978-08-08
Abstract: A float for swimmers comprises two elongate buoyant members pivoted together at one end of their ends a harness rope 4 and a rope saddle 6. <IMAGE>
Patent GB-2030065-A (GB)
Title: Slip casting
IPC: C04B33/28
Filed: 1978-09-18
Abstract: A process of obtaining a casting comprises:   (a) solidifying in a porous mold a castable slip comprising refractory particles and liquid, so as to provide a casting in said mold; (b) treating said casting while said casting is in said mold, so as to give or increase green strength of said casting; and (c) weakening at least a portion of said mold, so as to facilitate removal of said mold from said casting having said green strength.  Preferably, said mold comprises plaster of paris. <IMAGE>
Patent GB-2004951-A (GB)
Title: A combined gas turbine/steam turbine installation
IPC: F23R3/28
Filed: 1978-10-02
Abstract: The invention relates to an installation in which the steam for the steam turbine (12) is produced in a steam generator 5 by waste heat from the gas turbine (1). The combustion chamber (4) of the gas turbine (1) burns a fuel gasified in a gas producer (8) which receives compressed air from a booster compressor (7) which compresses part of the air compressed by a main compressor (2). A heat exchanger (9) cools the gasified fuel and generates steam to be used in driving the steam turbine (12). The generated steam is further heated and dried by a heat exchanger (6) which cools the compressed air entering the booster compressor (7) to prevent excessive thermal stresses in the blades of the compressor. <IMAGE>
Patent GB-2010597-A (GB)
Title: Fluid pressure operated piezoelectric generators
IPC: H01L41/113
Filed: 1978-10-02
Abstract: A fluid pressure operated piezoelectric generator comprises at least one piezoelectric device 20, means e.g. a piston 16/18 for applying pressure to the or each piezoelectric device 20, and fluid directing means 4, 6, 8, 10 for directing the fluid to the piston(s) to cause pressure to be applied to the or each piezoelectric device. The device 6 shown is a fluidic oscillator, and it allows pressure to be applied alternately to the two piezoelectric devices 20. Pressure may be applied to the piezoelectric devices using bellows or diaphragms. A piezoelectric generator with a rectifying/smoothing unit for producing continuous current is described with reference to Fig. 2 (not shown). <IMAGE>
Patent GB-2015906-A (GB)
Title: Polishing Machine for Lawn Bowls
IPC: B24B11/02
Filed: 1978-10-03
Abstract: A polishing machine for lawn bowls comprises a pair of parallel polishing rollers 3, 4 positioned side by side in a horizontal plane and a third roller 5 beneath the gap between the first two. The rollers are contoured and rotated so that a lawn bowl placed in the space between the rollers is polished. <IMAGE>
Patent GB-2010280-A (GB)
Title: Somatostatin analogs
IPC: C07K14/655
Filed: 1978-10-05
Abstract: Somatostatin analogs of the formula (I) X<1>-Cys(SA)-X<2>-X<3>-Phe-Phe- D-Trp-Lys-Thr-Phe-Thr-Ser-Cys(SA)-OH wherein A is hydrogen, or the A groups represent a direct bond between the sulphur atoms;  X<1> is hydrogen, H-Gly, H-Ala-Gly, H- Ala-Ala or H-Gly-Gly-Gly; X<2> and X<3> are independently Gly, D- Leu, D-Phe, D-Tyr, D-Trp, D-Met, D-His, D-Arg, D-Lys, D-Ser, D-Asp, or D-Asn; provided that X<2> and X<3> are not simultaneously Gly; and the pharmacologically-acceptable salts thereof. Compounds (I), which inhibit the release of pituary growth hormone, glucagen and insulin, may be admixed with a pharmaceutically acceptable carrier.
Patent GB-784547-A (GB)
IPC: G05G1/10
Abstract: 784,547. Eyelets. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 23, 1955 [June 26, 1954] No 18199/55. Class 89(1) [Also in Group XL(c)] A resilient eyelet used for supporting the glass tuning-scale 1 of a radio-receiver, with respect to a fixed metal-plate 7, comprises a body 13 of an elastic material, e.g. polyvinylchloride, having a central aperture 15 which accommodates a shaft 9, a peripheral-groove 17 which receives the inner edge of a circular aperture in the plate 1, and four cylindrical extensions 25, each having peripheral-groove which engages a corresponding aperture in the plate 7. The central portion 23 of the eyelet is of square-section and is separated from a circular flange 19 by the circular groove 17. In a modification, the cylindrical extentions 25 are omitted and a second peripheral groove, similar to groove 17, is formed in the body 13.
Patent GB-2010403-A (GB)
Title: Gear Pumps
IPC: F04C15/00
Filed: 1978-11-22
Abstract: The pump includes a housing (12, 14, 16), gears (18, 20), and a drive shaft (22) affixed to one of the gears. A plain bearing, or so-called bushing, (30) for the drive shaft has an end surface (36) facing the driven gear (18) and an annular recess (38) in this surface. A sealing member (40) is positioned within the recess (38) for minimizing outward leakage of fluid along the drive shaft. <IMAGE>
Patent GB-2035949-A (GB)
Title: Improvements in and relating to aircraft commissary vehicles
IPC: B64F1/32
Filed: 1978-11-28
Abstract: An improved commissary vehicle is described for servicing aircraft. A bridge (18) is hinged at 20 to the front end of an elevating container (14) which can be raised or lowered by means of an elevating mechanism (16). The inclination of the bridge (18) can be adjusted by extending or contracting rams (24) of which at least one is provided on one side and preferably on both sides of the bridge (18) to extend between the latter and the container (14). By elevating the container (14) by a short distance and extending the rams (24) so the bridge (18) can be lowered so that the leading end of the floor (22) can be lowered relative to the height which it normally adopts in advance of the vehicle cab when extending horizontally over the cab thereby allowing the vehicle to service a range of aircraft in which the service entrance is at different heights. <IMAGE>
Patent GB-2011390-A (GB)
Title: Thiadiazolo[3,2-a]pyrimidines
IPC: A61K31/54
Filed: 1978-12-14
Abstract: The invention relates to derivatives of 7H-1,3,4-thiadiazolo[3,2-a]- pyrimidin-7-one-5-carboxylic acid having basic substituents in the 2-position, the alkyl esters and/or pharmaceutically acceptable salts of these compounds which are novel substances found to have immun- stimulating properties, being especially valuable for anti-infectious therapy in mammals including man. The new products are prepared by reacting 2-amino-5-(basically substituted)-1,3,4-thiadiazoles with dialkyl acetylenedicarboxylates and hydrolysing the ester grouping in the resulting compound if desired and/or forming pharmaceutically acceptable salts.
Patent GB-2017270-A (GB)
Title: Valve Diaphragm
IPC: F02M69/52
Filed: 1979-03-20
Abstract: A diaphragm (5) to serve as a movable part of a valve, in particular a quantity-apportioning and metering valve of a fuel injection system for internal combustion engines comprises a clamping region (44), at least one resilient region (43) and at least one control region (42) for co- operating with a valve seat. The control region (42) has a thickness greater than that of the resilient region (43), and the clamping region (44) is provided with a photovarnish layer (47) which is resistant to the medium flowing through and which serves as seal and corrosion protection between diaphragm and valve housing. In a process for the manufacture of the diaphragm, outline, openings and different profile thicknesses of the diaphragm are produced consecutively or simultaneously by photochemical etching from a uniformly thick semiproduct having a layer of photovarnish on both major faces thereof. <IMAGE>
Patent GB-2049766-A (GB)
Title: Road Blocking Devices
IPC: E01F9/011
Filed: 1979-05-19
Abstract: A road block extending across one or more lanes of a road, Fig. 1 (not shown) comprises a number of hollow bodies 15 suspended above the road to be struck by the windscreen of any vehicle travelling along the road and failing to stop. The bodies are shattered by the impact and material contained in the bodies spreads over the windscreen to impair visibility. The material may be paint, foam, or adhesive particles. <IMAGE>
Patent GB-2024813-A (GB)
Title: Acylbiphenylylaminoalkanoic acids
IPC: C07C233/47
Filed: 1979-06-12
Abstract: Acylbiphenylylaminoalkanoic acids of the general formula I   <IMAGE> in which R<1> signifies an aliphatic or alicyclic hydrocarbon radical or an optionally substituted phenyl group, A signifies an optionally substituted and/or hydrogenated biphenylyl radical and n signifies a positive whole number from 3 to 5, as well as their salts of inorganic or organic barn exert on warm-blooded animals a protective action on the stomach and liver, and in addition they bring about an increase in the secretion of the pancreas and liver. In addition, they cause an inhibition of the formation of glucose from lactate and pyruvate in the liver. They are suitable for the treatment and prophylaxis of diseases which are due to disorders of the stomach or intestine or to reduced performances by the pancras, bile and/or liver. Processes for the production of the compounds and corresponding pharamaceutical products are given.
Patent GB-2027973-A (GB)
Title: Receiving and ejecting a tape- recorder cassette in two steps
IPC: G11B15/675
Filed: 1979-08-07
Abstract: When a cassette is fully inserted in the recorder actuation of the push-key actuator 72 actuates anti-clockwise movement of ejection lever 20c to push the cassette C past the tooth 84 of the braking lever 80 which is biassed against the edge of the cassette by spring 93. Ejection of cassette C is braked by its engagement with the tooth 83 so that complete ejection of the cassette C is prevented, only a small portion of the cassette extending out of the housing. Complete ejection of the cassette C is achieved by pushing it slightly inwardly, the motion causing bistable pin 94 to snap into its alternative stable position which frees lever 20 to continue to rotate under the bias of spring 90 and thus eject the cassette. <IMAGE>
Patent GB-2031411-A (GB)
Title: 3,7-Disubstituted-3-cephem-4- carboxylic Acid Compounds and Processes for the Preparation Thereof
IPC: C07D501/36
Filed: 1979-08-28
Abstract: The invention comprises 3,7- disubstituted-3-cephem-4-carboxylic acid compounds of the formula:   <IMAGE> wherein R<1> is amino or a protected amino, R<2> is an aliphatic hydrocarbon group which may have suitable substituent(s), R<3> is carboxy or a protected carboxy, and R<4> is N- containing 5-membered heteromonocyclic group having lower alkenyl group(s), with proviso that R<2> is not methyl when R<4> is tetrazolyl having a lower alkenyl group, and pharmaceutically acceptable salts thereof, processes for the preparation thereof and pharmaceutical compositions. These salts have antibacterial activities and are useful in treating infectious diseases in humans and animals.
Patent GB-2034429-A (GB)
Title: Master cylinder assemblies for vehicle braking systems
IPC: F15B15/10
Filed: 1979-10-18
Abstract: In a boosted master cylinder assembly the booster output rod (38) is connected to the primary piston (23) of a tandem master cylinder (1) and a spring (39') in the booster (2) biases both the primary piston and the output rod rearwardly. A single stop in the form of an annular seal assembly (31) is engaged by the retracted primary piston to determine the retracted position of both the primary piston and the output rod so that no adjustment is required. A substantial part of the length of the master cylinder is located within the booster housing (4), and the master cylinder reservoir 81 is mounted on the booster housing. <IMAGE>
Patent GB-2034871-A (GB)
Title: Minimising thermal stresses in plate heat exchangers
IPC: F28D9/00
Filed: 1979-10-26
Abstract: Methods and apparatus for heating or cooling heat exchanger manifolds and side bars during transient operation to control structural deformation and resultant stresses. Special internal passages are provided in the manifolds and side bars of a plate-and-fin heat exchanger through which heated air is diverted during operation of the heat exchanger, thus serving to stabilize the temperature of selected portions of the heat exchanger in line with operating temperatures of related heat exchanger elements. This serves to minimize thermal gradients and resultant thermal stresses in the overall heat exchanger structure.
Patent GB-2036042-A (GB)
Title: Transparent gels for dressing wounds
IPC: A61L15/16
Filed: 1979-11-05
Abstract: The present invention provides a transparent dressing material which is especially useful for the treatment of wounds, comprising a hydrophilic, organic, transparent gel in the form of a sheet or strip which is initially swollen with an aqueous solution, which can contain a buffer substance, an active material conventional in the treatment of wounds, a nutrient material and/or a growth material and optionally contains a strengthening material arranged in the form of threads or mesh, said dressing material being in the form of a dried, swellable, clear film. The present invention also provides a process for the preparation of this dressing material by polymerisation in the desired shape, of a suitable monomer.
Patent GB-2038033-A (GB)
Title: Microprocessor fault protection
IPC: G06F11/00
Filed: 1979-11-16
Abstract: A circuit arrangement incorporates a microprocessor for controlling, e.g. a vending machine. Outputs (5, 11, 15) of the microprocessor (2) are connected to intermediate circuits (6, 12, 16) each associated with consumer devices controlled via their respective outputs (7, 13, 17). A fault protective circuit is connected to an output (19) of the microprocessor (2) so that, in the event of a fault in the microprocessor (2), the various intermediate circuits (6, 12, 16) are disconnected via control leads (19a, 19b, 19c). <IMAGE>
Patent GB-2054022-A (GB)
Title: Napkin clip
IPC: A47G21/16
Filed: 1980-01-10
Abstract: A table-napkin holder provides means, preferably in the form of a clip arrangement e.g. with back 16 and front 18 portions, for holding a napkin and attachment means, for example a self-adhesive strip on the rear of the back portion 16, for removably attaching the holder to the wearer's clothing. <IMAGE>
Patent GB-2046587-A (GB)
Title: Bag insert
IPC: A45C13/02
Filed: 1980-03-07
Abstract: A removable insert for a bag comprises a panel 10 to which items are releasably fastened by holding means 11, 12 on the panel. By removing the insert from the bag, the items are displayed for instant use. <IMAGE>