baber/WOPTO huggingface dataset:
Patent GB-1265879-A (GB)
IPC: H04L25/20
Filed: 1969-09-12
Abstract: 1,265,879. Circuits using bulk effect elements; repeaters. NIPPON ELECTRIC CO. Ltd. 12 Sept., 1969 [20 Sept., 1968], No. 45192/69. Headings H3T and H4R. [Also in Division H1] An active transmission line has a plurality of bulk negative resistance semi-conductor elements 11, 21 ... 51, each with pairs of input terminals 12, 12<SP>1</SP> ... 52, 52<SP>1</SP> and output terminals 13, 13<SP>1</SP> ... 53, 53<SP>1</SP> and an input and output terminal of each element except for the final element in the line is connected to a respective output and input terminal of the succeeding element in the line through a differentiating means. The length of the domain propagating region in each element is longer than the product of the domain propagating speed and the time required for a signal to emerge from the element and to return to the same element via the input and output terminals of the succeeding element. As shown, the domain propagation time is made more than twice the time required for the signal to be propagated from the output terminal of one element to the input terminal of the succeeding element. Each element may be of GaAs and is biased by a source (E51 for element 51) below the domain threshold voltage but above the domain sustaining voltage such that a positive input triggers the element to produce a domain whereas a negative input does not. The input connections 12, 12<SP>1</SP> of each element are capacitive to act as a differentiator. Alternatively, the input terminals may be ohmic contacts or may be a PN junction or Scholtky barrier provided there is a differentiated coupling between the output of one element and the input to the succeeding element. A positive input (P12, Fig. 2, not shown) to 12 triggers a domain (V130) in element 11 and the output at 13<SP>1</SP> is differentiated to produce a positive input pulse (P22) to trigger a domain (V130) in element 21. The output 23<SP>1</SP> similarly triggers a domain in element 31 and this operation is repeated for the other elements 41, 51 to transfer the input from 12 to an output at 521. The outputs 23, 33, 43 and 53 coupled back to the preceding element do not effect the states of these elements as a domain in propagating in them. The transmission line will also transmit an input signal from input 52<SP>1</SP> to output 13. Inputs applied at both 12 and 52<SP>1</SP> effectively cancel at the central element 31 and an input to the central element 31 produces outputs at both 13 and 53<SP>1</SP>.
Patent GB-1289590-A (GB)
IPC: C25B1/36
Filed: 1970-04-10
Abstract: 1289590 Fusible cut-outs KUREHA KAGAKU KOGYO KK 10 April 1970 [16 April 1969] 17127/70 Heading H2G [Also in Division C7] An overload protection device for an electrolytic cell comprise a cup shaped member 3 connected to an electrode bar 1 by a threaded (5) rod 2, a flexible laminated copper strap 6 having one end secured in the socket by a metal 7 of low melting point and the other to a bus-bar 8, a separating mechanism (10) being secured by bolts 11, 12, to the bar 2 and the strap 6, such that the compressed spring 15 exerts a continuous separating force between the strap and cup. A guide rod 16 extends through an insulated bush 18 of polyvinyl chloride, the bush preventing current flow through the mechanism 10. Heat generated in the strap by an overload melts the metal 7 allowing the strap and cup to be separated.
Patent GB-1289688-A (GB)
IPC: C03C27/12
Filed: 1968-12-18
Abstract: 1289688 Laminates EMI Ltd 18 Dec 1969 [18 Dec 1968] 60273/68 Heading B5N A safety glass comprises a layer of a thermosetting polyurethane elastomer, based on a polyester of average number molecular weight between 800 and 3,000, sandwiched between two layers of glass. The elastomer is preferably admixed with 2, 6-di-tert-butyl-para-cresol and dilauryl thiodipropionate. In a preferred embodiment, the polyester is converted to a prepolymer with a diisocyanate such that the prepolymer contains free isocyanate groups and cross-linked with a polyol, a polyamine or mixtures thereof, prior to the formation of the safety glass. The safety glass may be made by applying an elastomer mixture to a sheet of glass, placing a second sheet of glass in contact with the mixture with the aid of spacers and curing the resultant sandwich.
Patent GB-1290156-A (GB)
IPC: G03C1/485
Filed: 1969-10-30
Abstract: 1290156 Silver halide emulsions EASTMAN KODAK CO 30 Oct 1969 [30 Oct 1968] 53147/69 Heading G2C [Also in Division G1] A method of controlling the fog level in a liquid silver halide emulsion comprises testing the fog level by optical density measurements in the infrared on a sample of the emulsion to which developer solution has been added and by comparing the rate of increase of the density with time with a standard rate, and temporarily raising or lowering the pH value of the emulsion for a period to produce optimum fog level. An apparatus for carrying out the above method comprises a temperature controlled mixing chamber 24 into which metered amounts of emulsion and developer are fed by sampler 12 and hose 38 respectively. A pump 28 circulates the liquid through narrow passage 30 between transparent windows 48, 50 to attenuate the infrared radiation from source 40 falling on photo-multiplier 46. A density-time curve is plotted and compared with a "standard" curve, Fig. 3 (not shown) to determine whether the fog level is at its optimum value.
Patent GB-1295900-A (GB)
IPC: D01F6/18
Filed: 1970-12-23
Abstract: 1295900 Crimped filaments made from acrylonitrile polymers CTA COMPAGNIE INDUSTRIELLE DE TEXTILES ARTIFICIELS & SYNTHETIQUES 23 Dec 1970 [23 Jan 1970] 61091/70 Heading B5B [Also in Division C3] A process for the production of curled yarns including crimped filaments from a solution of a polymer or copolymer containing at least 85% by weight of acrylonitrile units comprises (i) wet spinning a solution of the polymer or copolymer dissolved in an organic solvent therefor into a coagulating bath containing water, an organic solvent for the polymer and calcium chloride, (ii) washing and drawing the resulting filaments, (iii) treating the washed and drawn filaments in continuous form or in the form of cut fibres before drying and without tension in an aqueous bath containing calcium chloride at 110‹ to 120‹ C., (iv) washing the resulting material without tension to eliminate residual calcium chloride and (v) drying without tension. The polymeric acrylonitrile material may be in the form of one or more copolymers, mixtures of polymers or graft polymers containing also units of one or more ethylenic monomers copolymerizable with aerylonitrile, e.g. vinyl compounds, vinylidene chloride, acrylic or methacrylic acids, esters and amides thereof, methacrylonitrile, unsaturated compounds with carboxylic acid function or with sulphonic acid function, basic vinyl derivatives and vinyl dialkylamine ethers. The preferred organic solvent is dimethyl formamide, or dimethylsulphonide and bimethyl acetamide may be used. The preferred proportions of the constituents of the coagulation bath in the order water/solvent/ anhydrous calcium chloride are 10/60/30 to 60/30/w by weight. The preferred amount of anhydrous calcium chloride present in the coagulation bath is 10 to 30% by weight based on the coagulation bath. Preferably, the temperature of the coagulation bath is 0‹ to 20‹ C. The initial drawing may be effected in the aqueous medium of the coagulating bath or in air at ambient temperature, whereas the non- drawing at a higher rate is generally effected after washing the yarn at above 90‹ C. in water or water vapour. Preferably, the treatment bath contains 340 to 450 g./l. of CaCl 2 .
Patent GB-1296759-A (GB)
IPC: E01B1/00
Filed: 1970-03-23
Abstract: 1296759 Railway track foundations ILSEDER HUTTE 23 March 1970 [22 March 1969] 13856/70 Heading E1G In a method of making a permanent way, bearers 3 are positioned to extend longitudinally of the track and are transversely spaced, concrete slabs 10 are positioned across the bearers and the space 5 beneath them is filled with foam plastics. Side portions 2 of ballast 1 are concreted and provided with a bearer 3 of mortar and strip 4. Space 5 is lined with water-tight layer 6 and filled with slag 9. Tubes 7 are inserted and foam plastics injected through them into space 5. Alternatively the filler is contained in an envelope (13, Figs. 2 and 4, not shown).
Patent GB-1305388-A (GB)
IPC: F16C33/12
Filed: 1969-04-28
Abstract: 1305388 Coating with bearing metals; bearing metal JOSEPH LUCAS (INDUSTRIES) Ltd 29 June 1970 [28 April 1969] 21476/69 Headings C7A and C7F [Also in Division F2] A cast iron member, e.g. a piston slipper for a hydraulic pump is provided with bearing metal by first plating with Cu, heating to 950‹ C. in a reducing atmosphere or to 200‹ C. in a normal atmosphere, placing a disc of e.g. leadbronze on the plated surface, heating the whole to e.g. 940 to 980‹ C. in a reducing atmosphere, and then shaping by e.g. machinery. The lead bronze may be Pb 16 to 19, Sn 11 to 12, Ni 4 to 5, Zn À25 (max.), Fe À15(max.), P À15 (max.), Cu balance.
Patent GB-1308807-A (GB)
Title: Method and device for three-phase asynchronous motor speed regulation
IPC: H02P23/00
Filed: 1970-03-06
Abstract: 1308807 Motor control INSTITUTUL POLITEHNIC CLUJ 6 March 1970 10895/70 Heading H2J Each phase of a three-phase induction motor has a thyristor and stator winding in series, and a pulse transformer having a secondary winding connected between the cathode and gate of the thyristor in that phase and a primary winding between a pulse input and a cathode of a thyristor in another phase. In an embodiment, each pulse transformer has a secondary c between cathode and gate of one thyristor, e.g. T 1  with primary windings b, a between the cathodes of the other thyristors T 3 , T 2  and pulse inputs 1, 2 resp. A transient, caused by switching on, turns T 1  on via capacitor C, exciting the respective stator winding & charging C 1  and C 3  from D.C. supply U. A pulse, applied to terminals 1,0 passes through T 1  which is still on to energize the primary b of transformer Ti 2 , thus turning T 2  on via secondary winding of Ti 2 , capacitor C 1  applying a reverse bias to thyristor T 1  to turn it off. A further pulse will turn T 3  on and T 2  off. Thus pulses applied to terminals 1,0 will cyclically turn on the thyristors in sequence T 1  T 2  T 3 , or if applied to terminals 2,0 with a sequence T 1  T 3  T 2 . With no applied pulses, the D.C. is applied to only one winding to brake the motor.
Patent GB-1311478-A (GB)
Title: In-packet processing of photographic silver halide elements
IPC: G03D3/04
Filed: 1969-06-24
Abstract: 1311478 Processing apparatus KODAK Ltd 23 June 1970 [24 June 1969] 31875/69 Heading G2A An exposed photographic silver halide element carried in a flexible liquid-impermeable envelope containing a quantity of processing liquid is processed by carrying the element along a predetermined path whilst intermittently squeezing portions of the envelope throughout the length of the path so as to agitate the liquid. The envelope is conveyed on a rubber surfaced endless band 1 past an array of reciprocable beams 8 which extend the length of the path and are each mounted on pairs of randomly oriented rotatable eccentrics driven from a motor 12. The beams 8 remain parallel to the endless belt 1 which is supported on a flat horizontal member. Alternatively the belt may be replaced by the curved surface of a drum. The apparatus may be used to process dental X-ray packs, e.g. of the type described in Specification 1212192.
Patent GB-1313500-A (GB)
Title: Direction indicator system for tractor-trailer vehicles
IPC: B60Q1/38
Filed: 1969-10-13
Abstract: 1313500 Road traffic signals on vehicles JOSEPH LUCAS (INDUSTRIES) Ltd 23 Sept 1970 [13 Oct 1969] 50184/69 Heading G4Q A direction indicator system for a vehicle which can be used with or without a trailer compris3s a direction indicator switch 17 to energize the vehicle flasher lamps 18 or 19, an electrical connector 21 for engagement with a connector 22 on the trailer to connect trailer flasher lamps 23, 24, and two flasher units 14, 15, one or other of which is selected by switch 16, so that the flasher lamps operate with the same frequency whether or not the trailer lamps are connected. Switch 16 may be operated manually or by a relay winding 25.
Patent GB-1327208-A (GB)
Title: Cell lines
IPC: C12N5/09
Filed: 1969-07-03
Abstract: 1327208 Cell lines: cultivation of viruses WELLCOME FOUNDATION Ltd 2 Oct 1970 [3 July 1969 11 Aug 1969 and 30 June 1970] 46975/70 46976/70 and 46977/70 Heading C6F [Also in Division A5] The Specification is directed to a human epithelial heteroploid liver cell line, particularly that designated WRL (ATCC CL48), which forms individually separated islands or discrete clumps which resemble liver lobules when cultured in a growth medium, has a morphology closely resembling that of hepatocytes of the human liver and a generation time of not more than 24 hours, manifests increased production of glycogen in the presence of 1% glucose in the medium, and is capable of supporting viruses. The Examples disclose the replication upon the cells of specified strains of adenoviruses, vacinia viruses and echoviruses, also poliomyelitis, Sendai, herpes, feline infectious enteritis, San Carlos and specified arboviruses. Such viruses may be presented as a vaccine in association with a pharmaceutically acceptable carrier, after appropriate inactivation or attenuation by conventional methods.
Patent GB-1329663-A (GB)
Title: Connecting plug for an electric current supply rail
IPC: H01R25/14
Filed: 1971-04-19
Abstract: 1329663 Connection plugs for current supply rails NOKIA AB OY 19 April 1971 [3 Feb 1970] 20977/71 Heading H2E A connection plug comprises a casing 4 housing contact fingers 6, 7 pivotally mounted on shafts 5, and a cam shaft 9 rotatable to displace the fingers from a retracted position inside the casing to a position protruding from the casing for contact with conductors 1 in a current supply rail when the plug is inserted in the rail, the shafts 5, and cam shaft 9 all extending perpendicularly to the longitudinal direction of the conductors. Insertion of the plug into the rail which serves as an earth conductor urges a U-shaped spring 12 along the cam-shaft 9 against a spring 13 so that a protrusion 14 on the shaft is separated from a complementary notch 12a in the spring to allow the cam-shaft to be rotated by means of a knob 10. Rotation of the cam-shaft 9 turns an eccentric disc 11 to urge apart the limbs of the U-spring so that they engage the aperture of a channel-shaped rail 2 to lock mechanically the plug to the rail and form an earth connection. Rotation of the cam-shaft 9 also pivots the spring (19) loaded contact fingers 6, 7 about their shafts 5 in a chosen sequence into contact with the conductors, by means of a cam follower 18 on each finger engaging respective notches in the shaft 9. The contact fingers 7 are insulated from the shafts 5 by sleeves 8 but are connected by a lead 17 to a terminal, while the contact fingers 6 are connected to the shafts 5 which are connected by a conductor 15 to a terminal 16. In another embodiment (Figs. 5 and 6, not shown) the eccentric disc 11 is replaced by a cylinder (21) which is displaceable with the camshaft longitudinally of the cam-shaft to move the U-spring into its locking position. The use of cams may be avoided by forming the contact fingers with a notch (27) or teeth (30) which are engaged by complementary teeth (25), (28) on a shaft (24) or (27), (Figs. 7 and 8, not shown).
Patent GB-1341439-A (GB)
Title: Fuse boxes
IPC: H01H85/54
Filed: 1972-04-19
Abstract: 1341439 Fusible cut-outs BELLING & LEE Ltd 19 April 1972 [19 April 1971] 9845/71 Heading H2G A fuse box 11 comprises insulating guard members 24, 25 each including a pair of longitudinally extending guard flanges located between the ends of opposed limbs of the fuse clips 14, 15 and the open side of the body, a fuse cartridge secured by a spring to a fuse carrier laterally displacing the guard flanges against the resilient bias of the arms i.e. 25c which support the flanges to permit the cartridge to enter the clips. Portions of the carrier are expanded to engage the clips and hold the lid to the base in the absence of a fuse, the lid being guided into the base by a collar engaging internally projecting ribs in the base.
Patent GB-1341569-A (GB)
IPC: F16B7/04
Filed: 1971-03-16
Abstract: 1341569 Furniture joints ALU THERM W MEYER & CO 16 March 1971 7057/71 Heading A4H [Also in Divisions E1-E2, F2] Tubes 2 are coupled to form frames for furniture by rigid plastics connectors 1 having supporting arms with an outer layer of soft plastics material which fit tightly into the ends of the tubes. The internal surfaces of the tubes have longitudinally extending ribs 4 which elastically displace material in the surfaces of the arms to retain the tubes on the arms by friction. Alternatively, the surfaces on the arms also have longitudinally extending grooves (not shown) which are narrower than the ribs 4 and cooperate with the same. In either form, each arm has an encircling groove 6, to allow expansion of the material. When the ribs 4 dig into the surfaces of the arms. The connector is hollow and one arm is sealed by a closure plug 9 which compresses the air in the connector, the compressed air acting as a spring to safeguard against breakge of the connector during loading of the tubes.
Patent GB-1344824-A (GB)
Title: Method of treating safety razor blades
IPC: B05D7/16
Filed: 1970-03-10
Abstract: 1344824 Coating razor blades GILLETTE INDUSTRIES Ltd 7 June 1971 [10 March 1970] 11426/70 Heading B2E [Also in Division B4]  A safety razor blade made of stainless steel or carbon steel is treated by forming a high energy surface cutting edge on the blade, depositing on the edge a coating comprising a homopolymer, copolymer or graft copolymer (e.g. with polyacrylic acid) of ethylene and curing the polymer by heating under neutral conditions, i.e. in vacus or in an atmosphere which is neither oxidising nor reducing with respect to the coated blade. The high energy surface edge may be formed by baking the blade in a high vacuum at c. 350‹C or by deposition thereon of a thin layer of a metal such as Cr, Pt, Au, Ag, Ni, W, Mo, Cu, Cd or Al by evaporation or sputtering or of an oxide such as SiO 2  or chromium or aluminium oxide. The ethylene polymer of the coating may be mixed with minor amounts of poly (butene-1), poly(4-methylpentene-1), butyl rubber, polypropylene. Hevea rubber, polybutadiene or poly)vinylisobutylether) or with up to 90% by weight of polyisobutylene. The coating may be applied as a solution or dispersion by dipping, spraying, flowing on from a capillary or stropping, or alternatively by flame spraying or fluidised-bed or melt coating. Reference has been directed by the comptroller to Specification 1,050,241.
Patent GB-1354290-A (GB)
Title: Analytical apparatus
IPC: G01N30/88
Filed: 1970-07-30
Abstract: 1354290 Automatic control of chemical testing IMPERIAL CHEMICAL INDUSTRIES Ltd 2 July 1971 [30 July 1970] 36955/70 Heading G3N [Also in Division B1] A plurality of gas chromatograph apparatus A-G (one apparatus shown) are program controlled, having access to a computer and scanner J-L, the scanner and A/D converter J receiving data sequentially and iteratively from successive apparatus. The computer prints out quantities of components present in a sample. A timer F including a plastics or metal punched and colour coded card, or magnetic tape, which may be continuous, operates initially in response to motion of the card to a first stop position, to send a signal via computer operation module G and logic address unit I to transfer the particular analysis program desired from magnetic tape backing store K to a core store in unit L, an indicator light then operating on timer F, whence an operator injects a sample into gas chromatograph B closure of contacts at the end of injection by means of syringe injector A causing the punched card to restart and further control the analysis, by regulating gas flow via gas control E, sample vaporization, and gas temperature and pressure, and by means of control attenuation, the sensitivity of flame ionization detector or bridge connected hot wire detector and amplifier unit C to suit the particular analysis. Alternatively the punched card may also control the sample injection upon completion of program selection. Analysis results are displayed by means of graphical recorder D, and pass via logic address unit I, and scanner, A/D unit J to unit L, analysis results being printed and at teleprinter H the graph of recorder D also being marked by signals from the computer and timer teleprinter H may also print out diagnostic messages in the event of unexpected analysis results. For routine analysis, the computer assesses peak area or height, and may have dip detection for overlapping peaks. The median of three successive scanned values represents the operative computer data. The program has means to detect noise and to detect and reset base line drift in the detector. For less routine analyses slope, or peak/trough detection is used. The analysis programs are introduced into the computer by punched tape unit M. Analysis apparatus The mixture sample is introduced into a gas stream, the apparatus comprising one or more chromatography columns, in which the sample may be stored, and in which sample components are detected. When ever no analysis is in progress, back flushing of the system is taking place to remove slowly eluted sample materials. Control takes place by means of pressure regulators, micro-switch operated solenoid valves, and reed relays which control the detector. Individual samples are given addresses upon analysis, and the results may be thus dialled. The computer may monitor component operation.
Patent IL-104542-A (IL)
Title: Airborne obstacle collision avoidance apparatus
Inventor: SABAN IZHAK
IPC: G01S17/933
Filed: 1993-01-28
Abstract: An airborne obstacle collision avoidance apparatus which includes an object sensor for sensing objects within a field of view of the aircraft and an aircraft navigation system for navigating the aircraft through space. The apparatus also includes a signal processor for receiving data from both the object sensor and the aircraft navigation system, for generating map data of the objects within the field of view of the aircraft, for dynamically changing the map data as the aircraft moves through space and for determining the probability that the aircraft is on a collision course with respect to each sensed object. The apparatus further includes an alarm which is activated when the signal processor determines that there is a high probability that the current aircraft flight direction is on a collision course with respect to a sensed object.
[EP0609162A2]
Patent IL-110232-A (IL)
Title: System and method for guarding movable objects
Inventor: MEIR URBACH
IPC: G08B13/18
Filed: 1994-07-06
Abstract: A system (10) for guarding movable objects comprising: a monitoring unit (11) which includes: a receiver for receiving plural incoming signal transmissions; timing means (28); means (16), associated with said receiver, for verifying the legality of each incoming signal transmission, and including means for resetting said timing means in response to reception of a legal transmission; alarm means (44); and a power source (34); and at least one transmission unit attached to a movable object so as to be movable therewith, wherein each said transmission unit includes: means (24) for periodically transmitting predetermined signals for reception by said receiver of said monitoring unit, and a power source (46), and wherein, in the absence of reception of a legal transmission, and after a predetermined time period has elapsed, said timing means is operative to provide an output signal so as to cause activation of said alarm means so as to provide an alarm indication at said monitoring unit. This specification was examined in accordance with regulation 35 of the Patent Regulations, 5728-1968.