baber/WOPTO huggingface dataset:
Patent GB-1291743-A (GB)
Title: Single channel duplex space linked pulse communications system
IPC: H04J3/16
Filed: 1970-10-16
Abstract: 1291743 Radio communications BENDIX CORP 16 Oct 1970 [4 Nov 1969] 49292/70 Heading H4L In a common channel, duplex pulse communication system having a plurality of like stations, each station includes: a receiver 7 Fig. 1 and a transmitter 6, the receiver being continuously operative to receive its transmissions as well as the transmission of the other stations; pulse repetition period modulating means 3, 4, 5 fed with the source of intelligence 1, 2 to be transmitted; synchronizing means, 8, 9 exerting intermittent control on the modulating means in response to the total pulses received by 7, such that, whereby each station, if operating alone unmodulated, would emit pulses of a certain p.r.p, which could be different for each station, the combined effect of this synchronizing results in all the stations emitting pulses at the same p.r.p which is the average of the separate station p.r.p's and demodulating means 10, 11 providing an intelligence signal carrying the combined intelligence of all the stations. Such a system needs no "press to talk" facilities and is particularly useful for intercommunication by groups of workers. In Fig. 2 the relaxation oscillator 3 of Fig. 1 comprises capacitor 14 and charging circuits, together with discharge unijunction transistor 13. The discharge through 13 feeds a negative trigger pulse to monostable trigger circuit 15, 16, 17  acting as the delay of 4 to give a 6 Ás pulse, the trailing edge of which triggers a further circuit 18, 19, 20 to give two opposite polarity 8 Ás pulses for feeding the transmitter 6. The capacitor is normally fed with a contact charging current via current limiter 25 and one of the diodes 24, 27, 28. When a received pulse is not synchronous with the transmitted pulse or comprises a mixture of pulses spread over to partly start before and partly finish after the transmitted pulse e.g. D, Fig. 3 (the output of amplifier 8) the enabling of transistor 22 and shutting off of transistor 23 switches on diode 29, such that an additional pulse of current is fed to the capacitor 14 via limiter 26 until transistor 16 switches back at the trailing edge of pulse B and switches off diode 29. The extra charge J(E) causes a jump K in the capacitor voltage A which would cause a reduction in the period of the transmitted pulses. The lagging part of the received pulse(s) switches off all the operating diodes however and a reduction L in the charging current brings the voltage A back to its original path, indicating that the average p.r.p.'s of the received pulses is equal to the transmitter's p.r.p.  Discriminator 9 (items 21-28) may be omitted, the output of amplifier 8 giving the charging current directly.
Patent GB-1131690-A (GB)
Title: Stabilizing compositions
IPC: G01N33/483
Filed: 1966-11-03
Abstract: 1,131,690. Stabilised red blood cells. CHAS PFIZER & CO. Inc. 3 Nov., 1966 [3 Nov., 1965; 7 Oct., 1966], No. 49410/66. Heading B1X. Red blood cells suitable for use as a control in blood testing are stabilised by (a) mixing a saline suspension thereof containing up to 50% by volume of said cells with an equal volume of a saline 1-5% HgCl 2  solution, (b) heating the mixture at 37‹C for at least 12 hours, recovering and resuspending the solids as a 2-6% saline suspension, and (c) combining this suspension with an equal volume of a saline 0.0025% tannic acid solution, incubating and recovering the solid product. The product may be resuspended in a solution of sodium azide or merthiolate (bactericide) in propylene glycol, glycerol, saline, distilled water, or blood plasma or serum. Where the stabilised cells are to be used as control standards for red blood cell counting, they are preferably of human origin: for white blood cell counts, stabilised turkey, goose, chicken or duck red blood cells are preferably used. The saline solution in which the tannic acid is dissolved is a 0.45% aq. NaCl solution, buffered to pH 7.2 with sodium and potassium phosphates. For red blood cell and white blood cell count controls respectively the other saline solutions are 0.9% aq. NaCl and 0.45% aq. NaCl. Many details of concentrations of cells and steps of washing, centrifuging and resuspension, are provided.
Patent GB-1443352-A (GB)
Title: Internal shoe-drum brakes
IPC: F16D65/52
Filed: 1974-07-02
Abstract: 1443352 Automatic adjusters; internal shoe drum brakes GIRLING Ltd 2 July 1974 49930/75 Divided out of 1443351 Heading F2E The off position of a shoe 1 of an internal shoe drum brake is adjusted automatically by an adjuster comprising a strut 4 pivotally mounted about a pin 5 which passes with clearance through an elongated hole 6 in the web of the shoe 1, the outer end of the strut 4 being arcuate and formed with teeth 7 for co-operation with a knurled disc 8 fixed to the web; a post 10 fixed in the stationary back plate of the brake passes with clearance through an arcuate slot 9 in the strut 4 offset from the pin 5, the strut 4 being resiliently urged into engagement with the knurled disc 8 by a bowed spring 11. When the brake is applied the shoe 1 moves to take up the clearance between the post 10 and the slot 9-if owing to wear of the shoe lining there is continued outward movement of the shoe 1, and movement of the strut 4 is prevented by the post 10, then there is relative sliding movement between the pin 5 and the hole 6 and the strut 4 is disengaged from disc 8. The strut 4 is then caused to move angularly owing to the offset disposition of the pin 5 and the post 10 and on release of the brake the strut 4 takes up a fresh adjusted position in its engagement with the disc 8. The brake illustrated has a single ended wheel cylinder 2 in which works a piston to actuate shoe 1-the other shoe 3 is actuated by a similar single ended wheel cylinder.
Patent GB-1396070-A (GB)
Title: Oil-filled cable
IPC: H01B7/42
Filed: 1973-10-26
Abstract: 1396070 Electric cables KABELUND LACKDRAIITFABRIKEN GmbH 26 Oct 1973 [27 Oct 1972] 50034/73 Heading H1A An oil-filled cable in which the conductor 3 has a liquid-tight pipe 1 running along inside it to carry a coolant 2, e.g. water; the pipe being hermetically sealed from ducts 6, 7 and 8 provided for oil supply to the insulation. In one embodiment the liquid-tight pipe 1 is helically corrugated and its corrugations form an oil feed duet 6 against the inside surface of the conductor 3. Segments of the conductor may be replaced by further oil ducts or ducts 8. A corrugated metal sheath 5 forms outer oil ducts 7 against the outer surface of the paper insulation 4. In a further embodiment, Fig. 3 (not shown), the liquid-tight pipe (11) is smooth and oil feed ducts (16) are impressed into the inner surface of the metal sheath which surrounds the insulation.
Patent GB-1402169-A (GB)
Title: Condensation resins
IPC: C08G12/00
Filed: 1972-12-04
Abstract: 1402169 Condensation resins DEUTSCHE TEXACO AG 4 Dec 1972 [9 Dec 1971] 50579/72 Heading C3R In a continuous process for the production of condensation resins the reaction is carried out in a single reactor or at least two seriesconnected reactors each comprising a heatexchanger and a circulating pump and in each of which the said pump mixes the feed and recycled material and forces them under turbulent flow through the heat exchanger, the feed comprising the reactants in the first reactor and the partially reacted product in any subsequent reactor. The process can be used to prepare urea -HCHO, melamine -HCHO, phenol -HCHO and ketone -HCHO resins. In the examples phenol -HCHO resols and novolaks are prepared using a 3 stage unit as shown. Phenol and the catalyst are passed through cooler 3 by means of metering pumps 1 and 2 which are then passed together with -HCHO from metering pump 4 to recycle pump 5, which mixes the reactants with the recycle material drawn via line 7 and forces them under turbulent flow through heat exchanger A which may be of the plate-type or spiral type. In a similar manner the largely methylolated product from exchanger A is completely methylolated and the cross-linking reacting started in heat exchanger B and continued in heat exchanger C.
Patent GB-1492930-A (GB)
Title: Virus growth
IPC: A61K39/125
Filed: 1974-10-31
Abstract: 1492930 Feline virus vaccines AFG (STALHAM) Ltd 31 Oct 1974 [31 Oct 1973] 50622/73 Heading A5B [Also in Division C6] Antigenic material effective against a virus disease in cats e.g. feline panleucopenia, feline rhinotracheitis and feline picornaviruses is prepared by obtaining feline lung tissue free from virus disease, preparing a cell strain of the feline lung tissue, forming a culture of the cell strain, a tissue free virus corresponding to the virus disease and a nutrient medium, and growing the culture, and either (a) inactivating the virus or (b) attenuating the virus by serial passage in the cell strain. A vaccine comprises the antigenic material in an administrable form. A feline lung tissue may be prepared under aseptic conditions, disaggregating the lung tissue either by mechanical means or with an enzyme and culturing or sub - culturing the disaggregated lung tissue by serial passages in a nutrient medium preferably until a cell strain is obtained being either a diploid or heteroploid cell strain which is free from extraneous virus. The disaggregation may be performed in a buffered salt solution containing trypsin to form a suspension of cells which is transferred to the nutrient medium where it is cultured at 35‹C to 40‹C. The culture may be formed either (a) by seeding the virus to a suspension of the cell strain in the nutrient medium or (b) by adding the virus to the cell strain in the form of a confluent monolayer with subsequent addition of the nutrient medium such as by allowing the virus to adsorb on to the cells which are maintained at 20‹C to 40‹C preferably for 30 to 120 minutes is allowed for adsorption after which a quantity of the nutrient medium at a rate of 10 to 50 ml of the medium for every million viable cells and the whole is incubated at 30‹ to 40‹C desirably until a cytopathic effect takes place on the cells and wherein the culture is harvested when the cytopathic effect is near to completion e.g. when it has attained from 80% to 100%. After harvesting the cells and the liquid medium are separated by centrifuging and the liquid medium containing the extracellular virus is collected, the cells being then broken down for liberation of the cell associated virus. The cells may be treated by repeated freezing and thawing followed by separation of antigenic material from the cell debris by centrifugation. The nutrient medium may be Eagles Basal Medium maintained at a pH of 7.0 to 7.4 by the use of a buffering agent and containing calf serum or calf foetal serum.
Patent GB-1415341-A (GB)
Title: Device for supplying combustion air to the burner head of an oil burning appliance
IPC: F23L5/02
Filed: 1972-11-02
Abstract: 1415341 Burners B O M PALM 2 Nov 1972 50626/72 Heading F4T [Also in Division F1] A device for supplying combustion air to the burner head of an oil burning appliance, comprises a radial-flow blower provided with a casing 1 having a peripheral wall including a free edge 15 which partially defines an outlet port 16 leading to a duct 17 of approximately rectangular cross-section, a side wall of said duct having an approximately rectangular port 20 communicating with a part-cylindrical air supply pipe 3 for conducting combustion air to the burner head of the appliance, the axial flow direction of said air supply pipe being opposite to that of said duct. The device is said to reduce the dynamic pressure of the combustion air, to reduce any tendency of the burner flame to be blown out. In the embodiment illustrated the combustion air is said to move helically while flowing through the air supply pipe 3.
Patent GB-1469069-A (GB)
Title: 4-homoisotwistyl bromide and derivatives thereof
IPC: C07C23/38
Filed: 1975-12-10
Abstract: 1469069 Lubricants KAO SOAP CO Ltd 10 Dec 1975 [23 Dec 1974] 50634/75 Heading C5F [Also in Division C2] The novel compound 3-acetylamino-4-homoisotwistane(tricyclo[5.3.1.0<SP>3,8</SP>]undecyl - 3 - acetamide) is suitable for lubricant additives, extreme pressure agents and fibre oiling agents.
Patent GB-1449276-A (GB)
Title: Spatially modulated imaging system
IPC: G01N23/04
Filed: 1973-11-01
Abstract: 1449276 Spacial filtering of x-rays RAYTHEON CO 1 Nov 1973 [1 Nov 1972] 50849/73 Heading G2J X-ray photography is practised using a spacially modulated secondary x-ray source, recording the further modulated beam and examining the recording. The x-rays eminate from a fluorescent material 16 excited by x-ray source 12 and are spacially modulated by a filter 18 and then pass through a half-tone screen 22 to the object 24 being photographed. The further modulated beam is recorded on film 26 using if desired scintillation plates 28 as is conventional. This film may be examined or a further copy made as shown and the final record is obtained by the use of laser light 52 which is diffracted by the developed and bleached film on to screen 74 for viewing or into camera 76 for photography. The secondary x-ray source may be in the object being photographed.
Patent GB-1406264-A (GB)
Title: Automatic telephone answering device
IPC: G11B31/00
Filed: 1972-11-06
Abstract: 1406264 Substation equipment PIONEER ELECTRONIC CORP 6 Nov 1972 [6 Nov 1971] 51165/72 Heading H4K In a telephone answering machine, the time of each incoming message is recorded on the incoming message recording medium prior to the recording of a message and during the time that the initial answering announcement is being made to the caller. A local speaking clock provides the time information. In operation ringing current on line 11 is detected by rectifier 12 so as to bring up relays Y1 and Y3 after a short delay. Y1 connects announcement tape loop T1 to line while Y3 connects message recording tape T2 to magnetic drum clock 22. Y3 drops after a preset period sufficient to permit the time to be recorded and in so doing stops T2. When the announcement ceases, a foil 18 shorts contacts 19 thereby bringing up Y2 which connects the line to tape T2 via an amplifier 16. After a further preset period timer 13 drops Y1 so as to restore the machine to rest.
Patent GB-1198495-A (GB)
Title: Method of Manufacturing Cast Iron with Spheroidal Graphite
IPC: C21C7/00
Filed: 1967-11-10
Abstract: 1,198,495. Spheroidal graphite cast iron; ferrous master alloy. KLOCKNER & CO. Nov.10, 1967 [Nov. 18, 1966], No. 51207/67. Headings C7A and C7D. Spheroidal graphite cast iron is produced by continuously introducing a granular master alloy of composition: 10 to 20% Mg, 8 to 18% Ca, 30 to 46À2% Si, optionally up to 1À5% of rare earth metals, and the remainder Fe, into the hollow interior of a jet of molten cast iron, e.g. composed of 3À25% C, 2À76% Si, 0À04% Mn, 0À03% P, 0À045% S, remainder Fe, as it leaves a ladle. As shown, the granular alloy 13 e.g. from a storage vessel 11 is introduced into the centre of the hollow jet 10 of molten iron from a feed pipe 9 supported by a pedestal structure 7 and arranged co-axially with the funnel-shaped discharge opening 5 in the base wall 2 of the ladle through and which the cast iron 1 can be poured. The temperature of the melt is preferably maintained at 1500- 1600‹ C .
Patent GB-1398457-A (GB)
Title: Blocking diode for solar cell panel array
IPC: H01L31/0443
Filed: 1973-11-08
Abstract: 1398457 Semi-conductor devices HUGHES AIRCRAFT CO 8 Nov 1973 [2 Jan 1973] 51904/73 Heading H1K In a solar cell array each group of electrically interconnected similar flat solar cells, e.g. 51, 53, Fig. 5, is mounted on a panel 59 with a blocking diode 11 serially connected therewith, wherein the diodes are flat and of the same general thickness and shape as the solar cells and have a cover layer preventing solar illumination of the diode -junctions, the diodes being mounted on the panel 59 in a coplanar arrangement with the solar cells. Each diode 11, Fig. 2, comprises a thin silicon semi-conductor wafer 13 having two oppositely doped regions 19, 21 defining a planar junction 23 therebetween, and having respective flat electrodes 25, 27 of aluminium or silver-titanium. The exposed edge 35 of the junction may be sealed with a strip of thermal diffused glass 33. The diode is shielded from solar radiation by an apertured bonded aluminized PTFE cover layer 29. Alternatively, Fig. 4 (not shown), the top electrode (25<SP>1</SP>) may be disposed adjacent the periphery of the diode and the cover layer (29<SP>1</SP>) formed of aluminized or silvered fused silica. The solar cell array may be of the flexible rollup, rigid flat or cylindrical type used to provide power for spacecraft.
Patent GB-1421053-A (GB)
Title: Bareel mechanism
IPC: F04B27/08
Filed: 1973-11-08
Abstract: 1421053 Swash plate mechanism CREUSOTLOIRE 8 Nov 1973 [14 Dec 1972] 51952/73 Heading F2K A swash-plate drive mechanism for an axialpiston pump or motor is arranged within a stationary casing 1 on a pre-stressed tie-rod 4 whereby generated end thrust of a wobble plate 7 is completely absorbed by the tie-rod 4, the self-contained end thrust tie-rod arrangement enabling a light sheet metal surrounding shell 13, 14 for the casing 1 to be utilized to reduce the overall weight and bulk of the drive unit. As shown, the wobble plate mechanism comprises the wobble plate 7 journalled on an internal Z- crank 27 and prevented from rotation by a link 73 connected to the stationary casing 1. The Z- crank is formed on a hollow shaft 2 journalled at 21, 25 on a spacer sleeve 3 and casing end flange 110 respectively, the tie-rod 4 passing through and clamping the spacer sleeve 3 between the ends of the casing 1. Drive to the wobble plate 7 is effected through a reduction gear comprising an input pinion 6 meshing a gear wheel 24 which is formed at the end of the hollow shaft 2 and by which the journal bearing 25 is effected on the casing flange 110. The wobble plate 7 drives the pump or motor axially movable pistons via ballended connecting rods 8. Plain bearings 8, 23, 25, 71 and 72 which are used throughout in the Fig. 1 arrangement may be replaced by ball and/or roller bearings as illustrated in Fig. 2 (not shown).
Patent GB-1442222-A (GB)
Title: Benzodiazepine derivatives
IPC: C07D401/04
Filed: 1973-07-12
Abstract: 1442222 Benzodiazepines F HOFFMANNLA ROCHE & CO AG 12 July 1973 [13 July 1972] 52094/75 Divided out of 1442221 Heading C2C Compounds of the general formula (R 1 , 2 =H, halogen, CF 3 , NO 2 ;R 3 =Ph optionally mono- or disubstituted by halogen or CF 3 , Py; n=0, 1; R 4 =H, C 1-7  alkyl; R 5 =C 1-7  alkyl) are prepared by reacting the corresponding 2- alkylamino compound with nitrous acid.
Patent GB-1513580-A (GB)
Title: Acoustic surface-wave filters
IPC: H03H9/145
Filed: 1975-12-19
Abstract: 1513580 Surface wave devices SONY CORP 19 Dec 1975 [25 Dec 1974 24 July 1975] 52121/75 Heading H3U To avoid distortion due to both mechanical and electrical reflections at the transducers 2, 3 of a surface wave device (e.g. a filter) at least one of the transducers has one or more stepped portions so that the surface wave path comprises a plurality of adjacent propagation channels 3a, 3b, Fig. 2 or 6a, 6b, 6a 2 , Fig. 3, the channel width W and the relative phase shifts # of the channels being chosen so that reflections substantially cancel.
Patent GB-1236400-A (GB)
Title: Hydraulic rotary motors and pumps
IPC: F04C2/10
Filed: 1968-05-16
Abstract: 1,236,400. Rotary hydraulic pumps and motors. TRW Inc. May 16, 1968 [Aug. 11, 1967], No. 52197/67. Heading F1F. A rotary hydraulic pump or motor comprising an internally-lobed stationary ring member 22, Fig. 1, and an externally-lobed rotor 23 with one less lobe driven by or driving a shaft 18 by means of a wobble shaft 33 splined to a drive sleeve 14 and the rotor 23 so that the rotor rotates about its own axis and orbits within the ring member 22 are mounted with clearance within a cylindrical shell 12 fitted between a body part 11 and cover 46. The ring member and rotor together with a plate 47 on one side thereof and plates 41, 42, 44 on the other side are connected to the body part 11 by clamping bolts 48. The wobble shaft 33 includes an extension formed with fingers 118, 119, Fig. 4, which cooperate with openings 116, 117 in a valve plate 43 so that the valve plate rotates and orbits with the rotor 23. The valve plate 43 is formed with a recess 111, corresponding in shape to the external rotor lobes, on that side adjacent the plate 42 and on its other side with an annular groove 90 fitted with a seal back 89 Fig. 7, comprising a metal wear ring 91, a sealing element 96 of e.g., nylon or fluorocarbon resin material and an elastomer 101 for exerting a continuous biasing force which in its unstressed condition is semicircular in cross-section, The valve plate 43 co-operates with a ring of circular ports 67 in the plate 42 equal in number to the number of lobes in the ring member 22 which on orbiting of the valve plate connects increasing volume pockets 30 between the lobes of the ring member and of the rotor via ports and passages in the plates 41, 42, a chamber 87 surrounding the valve plate, grooves 85 in the plate 42 and annular passage 50 with a highpressure opening 83 when operating as a motor and decreasing volume pockets 30 through ports and passages in the plates 41, 42, the valve plate recess 111, passages 51, 52 in the wobble shaft and ports 53, 54 in the drive sleeve 14 to a lowpressure openings 88. The reverse rotation of the rotor the functions of the openings 83, 88 are reversed. The valve plate 43 includes a circumferential row of alternately disposed major and minor portions respectively larger and smaller than co-operating ports in the plate 42. For shape of major and minor portions refer to the Specification.
Patent GB-1284222-A (GB)
Title: Method and apparatus for forming gaskets
Inventor: GROOM FREDERICK CHARLES
IPC: B21D51/46
Filed: 1968-11-05
Abstract: 1284222 Container closures W R GRACE & CO 17 Nov 1969 [5 Nov 1968] 52410/68 Heading B8T [Also in Division B2]  Apparatus for forming a sealing gasket on the sealing surface of a container closure by applying sealing material to the surface at a plurality of separate circumferentially spaced positions, the individual deposits flowing into one another to cover the sealing area, comprises an application station 1<SP>1</SP> to which a closure is fed via a shoot 1 into a V-shaped recess 5. The sealing material is purified at a controlled temperature to a gun 3, which is provided with an air supply 7 and with a multi-orifice needle operated nozzle 4, and applies the sealing material, the duration of the application being controlled by an air valve operated by a D.C. supply 6A, 6B and a motor 13. When application has ceased, an air jet 9 drives the closure on to a conveyer 10 and is transported under banks of infra-red heaters 11, 12, which reduce the material to a flux, thus completing the process of gasket formation. In a further embodiment, the gun 3 may be controlled by an electronic timer or by contacts actuated from the conveyer drive means.
Patent GB-1200742-A (GB)
Title: Apparatus for the decelerating and changing the path of movement of a resilient sheet
IPC: G06K13/12
Filed: 1967-11-17
Abstract: 1,200,742. Delivering sheets. INTERNATIONAL BUSINESS MACHINES CORP. 17 Nov., 1967 [15 Dec., 1966], No. 52428/67. Heading B8R. A resilient sheet 5 is decelerated and stacked by passing it along a first guide surface 14, 15 which bends the sheet and directs it against a rotating stop roller 21 and allowing the bent sheet to recover its initial shape while restraining it with guide plate 12 to cause it to be deposited in receiver 25. Passage of a following sheet from rollers 10, 11 to guide surface 14 deflects plate 12 downwards out of notch 16 and thus serves to direct the previous sheet towards the receiver 25 which may be spring loaded or moved incrementally downwards. The device may be used to stack the sheets vertically (Fig. 4, not shown) and a jogger plate (37) may aid stacking. A pneumatic deflector may replace guide plate 12.