baber/WOPTO huggingface dataset:
Patent GB-1356326-A (GB)
Title: Switching system charging arrangement
IPC: H04Q3/54
Filed: 1971-08-31
Abstract: 1356326 Automatic exchange systems WESTERN ELECTRIC CO Inc 31 Aug 1971 [31 Aug 1970] 40600/71 Heading H4K In a telephone system additional services selected by a calling subscriber which services require some additional action or special response at a called station and which may be used during only part of a call due to delay in making that action or special response are only charged for if used. The services may be charged for in accordance with the period in which they are provided. The Specification describes an audio-video connection between subscribers in different exchanges in which the calling subscriber has requested, by dialling a special prefix digit prior to the wanted subscriber designation, such a connection but in which, at the called station the call is answered initially in audio only fashion and is later converted to an audio-video call if the called subscriber switches on his video receiver. The called station may include a secretary's telephone or an audio only telephone at which a call may be initially answered the call being subsequently continued in audio-video fashion at an executive or main telephone with video equipment. In the calling subscriber exchange the marker and other common control equipment set up two separate connections, one via an audio switching network and the other via a video switching network, to the called subscriber exchange in response to the dialling of the prefix digit and the called subscriber code. Both switching networks employ cross-bar switches. The subscriber identity is forwarded to the called exchange over the audio path and the called exchange extends both the audio and the video path to the called station. A video path to the video set at the called station from a video supervisory signal source is momentarily completed and a video test signal is transmitted to the reciver, which is adapted to store the fact that it has received such a signal. If during the call the called subscriber enables his video set by pressing a key the set returns a synchronizing signal to the exchange. At the exchange an AND gate is enabled if the audio connection has been established and the synchronizing signal is being received and produces an output which extends the video path already set up but held in open circuit state to the called exchange where a further AND gate operates in identical fashion causing the path to be extended to the calling station video set. The output of this AND gate is also used to actuate the call charging equipment. The call charging equipment records on tape the numbers of the calling and called subscribers, the time at which an audio connection is established, the time at which a video connection is established and the time at which both connections are terminated. Provision could also be made to allow for termination of the video connection prior to the audio connection.
Patent GB-1224248-A (GB)
Title: Apparatus for the continuous precipitation of plutonium oxalate
Inventor: AUCHAPT PIERRE
IPC: C01G56/00
Filed: 1968-08-26
Abstract: 1,224,248. Continuous precipitation of plutonium oxalate. COMMISSARIAT A L'ENERGIE ATOMIQUE. 26 Aug., 1968 [6 Sept., 1967], No. 40660/68. Heading B1X. [Also in Division G6] Apparatus for the continuous precipitation and purification of plutonium oxalate comprises a precipitator 1 into which quantities of the reagents metered at 30, 31 are introduced by non-immersed tubes 2, 3. The suspension formed overflows at 5 and passes to decanting vessel 6, cylindro-conical transfer chamber 9, first washing column 16 and associated decanting vessel 20 and cylindro-conical transfer chamber 22, and second washing column 23 similar to the first column and leading to a drying oven. The transfer chambers each comprise two ball valves which open and close automatically at intervals so as to transfer the precipitate to the next stage with the aid of washing liquid introduced via valves 13. Plutonium oxalate is precipitated by mixing' solutions of plutonium nitrate and oxalic acid. Reference has been directed by the Comptroller to Specification 1,055,412. (For Figure see next page)
Patent GB-1351720-A (GB)
Title: Terminations for transmission lines
IPC: H01P1/26
Filed: 1972-09-04
Abstract: 1351720 Terminations for transmission lines WESTINGHOUSE ELECTRIC CORP 4 Sept 1972 [18 Oct 1971] 40846/72 Heading H1W An energy-absorbing termination for a transmission line such as waveguide 21 comprises a short-circuit 28 across the end of the guide and a resistive film 24 across the guide and spaced from the short circuit by an odd number of quarter wavelengths of the radiation in a heat conductive medium 26 disposed between the film and the short circuit. The sheet resistance of the film is made equal to the impedance of the guide and, if required, impedance matching bodies 25, 29 can be used for this purpose. A liquid cooling system can be provided as shown or air cooling may be used. The film 24 can be Nichrome (Registered Trade Mark), the heat conductive medium beryllium oxide and the impedance matching bodies beryllium oxide, polyphenolene oxide or boron nitride.
Patent GB-1176673-A (GB)
Title: Etching Process.
Inventor: RIESE HORST
IPC: H01L21/00
Filed: 1967-09-07
Abstract: 1,176,673. Etching. BROWN, BOVERI & CO. Ltd. 7 Sept., 1967 [9 Sept., 1966], No. 40880/67. Heading B6J. [Also in Division H1] A semi-conductor member 100 is etched in apparatus comprising a cylindrical tank 4 containing etchant 5 and rotatable by a motor 6 about its axis 8, which is inclined to the vertical, the member 100 rolling on the inner cylindrical surface of the tank and bubbles forming during etching being removed therefrom by projecting rods 7, fitted to the tank.
Patent GB-1279857-A (GB)
Title: Marine anti-fouling composition
Inventor: MORGAN S H
IPC: C09D5/08
Filed: 1969-08-15
Abstract: 1279857 Marine anti-fouling compositions PLASTIC MOLDERS SUPPLY CO Inc 15 Aug 1969 [16 Aug 1968 1 Aug 1969] 40886/69 Index A5E 1A1G7 1A2A 1A3F 1A4 1A5B2 1A5B3 1C12H 1C15D1 1C15F3 and 1C4A A marine anti-fouling composition comprises (i) an unsaturated polyester resin vehicle effective to give an elastomeric resin upon curing and (ii) tri-n-butyl tin fluoride in an amount of 12 to 20% by weight of the composition. In the examples the compositions comprise polyesters prepared from phthalic anhydride, maleic anhydride and diethylene glycol, styrene, tri-nbutyl fluoride, colloidal silica, cobalt naphthenate, t-butyl catechol in ethyl acetate, kaolin, triphenyl tin chloride, tri-n-butyl tin oxide, tri-nbutyl tin resinate and tri-n-butyl tin chloride and are cured in the form of panels using methyl ethyl ketone peroxide. These are formed into laminates by backing with polyester resin impregnated glass fibre mat.
Patent GB-1475898-A (GB)
Title: Method and apparatus for producing articles by injection moulding
IPC: B29C45/20
Filed: 1974-09-19
Abstract: 1475898 Injection moulding of composite article BILLION SA 19 Sept 1974 [21 Sept 1973] 40892/74 Heading B5A An article comprising a plurality of layers of at least three different materials is made by injecting into a mould a quantity of a first material followed by injections of a second and third material. The second material may be such as to bond the other two together. As shown in Fig. 1 three plasticizing units 6, 7, 8 are connected via rotary valves 16, 17, 18 with a nozzle 19 connected to a mould inlet channel 5. The nozzle 19 comprises a sleeve 32 slidable in a second sleeve 25 which is slidable in a fixed sleeve 15. When the first material is injected from unit 6 it pushes the sleeves 25, 32 to cut off supply from units 7, 8 and passes through channels 39, 24 and 5 to the mould cavity. The second and third materials similarly cut off the supply from the other two units.
Patent GB-1400708-A (GB)
Title: Heat treatment of steel wire reinforcements
IPC: D07B1/06
Filed: 1971-09-02
Abstract: 1400708 Steel wire for tyre reinforcement BEKAERT SA NV 31 Aug 1972 [2 Sept 1971] 41043/71 Heading C7A High carbon steel wire (0.2 - 0.9%C) has an essentially martensitic structure and an elongation of 3% to 10%. The steel which preferably has a carbon content of 0.6 - 0.8%, may have initially a cold drawn pearlitic structure, and is continuously austenitized, quenched and tempered, suitable conditions being 0.2 - 15 seconds at 750 - 1100C followed by oil quenching and tempering at 300 - 500C in a lead bath for 0.5 - 10 seconds.
Patent GB-1271550-A (GB)
Title: A novel substituted phenyl acetic acid methyl ester, process for the production thereof and compositions containing same
Inventor: SALLMANN ALFRED
IPC: C07D209/34
Filed: 1969-08-20
Abstract: 1,271,550. [o - (6 - Chloro - o - toluidino)- phenyl]-acetic acid methyl ester. J. R. GEIGY A.G. 20 Aug., 1969, No. 41437/69. Addition to 1,132,318. Heading C2C. Novel [o - (6 - chloro - o - toluidino) - phenyl]- acetic acid methyl ester is prepared by methylation of [o-(6-chloro-o-toluidino)-phenyl]-acetic acid at a temperature of at most 60‹ C. or by reaction of a salt of [o-(6-chloro-o-toluidino)- phenyl]-acetic acid with a reactive ester of methanol. [o - (6 - Chloro - o - toluidino) - phenyl] - acetic acid is prepared (a) by reaction of acetyl chloride with 6-chloro-o-toluidine, treatment of the resulting 6<SP>1</SP>-chloroaceto-o-toluidide with bromobenzene, copper powder and potassium carbonate, followed by ethanolic potassium hydroxide solution, reaction of the N-phenyl-6- chloro-o-toluidine so formed with chloroacetyl chloride, treatment of the resulting N-phenyl- 2,6<SP>1</SP> - dichloroaceto - o - toluidide with aluminium chloride under heating and treatment of the 1- (6-chloro-o-tolyl)-2-indolinone thus produced with sodium hydroxide solution and ethanol, followed by hydrochloric acid; and (b) by treatment of N - acetyl - 6 - chloro - o - toluidine with obromobenzoic acid, copper powder and potassium carbonate, reaction of the N-acetyl-N-(6- chloro-o-tolyl)-anthranilic acid so formed with diazomethane, reduction of the resulting corresponding methyl ester with lithium aluminium hydride, treatment of the o-(6-chloro-N-acetyl-otoluidino)-benzyl alcohol thus produced with thionyl chloride reaction of the resulting corresponding benzyl chloride with sodium cyanide, treatment of the resulting α-cyano-N-(6-chloroo-tolyl)-aceto-o-toluidide with ether and ethanol in the presence of hydrogen chloride, hydrolysis of the o-[N-(6-chloro-o-tolyl)-acetamido]-phenyl acetic acid ethyl ester so obtained with sodium hydroxide solution in ethanol and treatment of the resulting o-[N-(6-chloro-o-tolyl)-acetamido]- phenylacetic acid with potassium hydroxide in butanol, followed by hydrochloric acid. The potassium salt of [o-(6-chloro-o-toluidino)-phenyl]- acetic acid is prepared by treatment of 1-(6- chloro-o-tolyl)-2-indolinone with ethanolic potassium hydroxide. Pharmaceutical compositions having antiinflammatory, analgetic and antipyretic activity comprise, as active ingredient, [o-(6-chloro-otoluidino)-phenyl]-acetic acid methyl ester, together with a pharmaceutically acceptable diluent or carrier, and may be administered orally or rectally.
Patent GB-1243050-A (GB)
Title: Improvements in or relating to rectifier protection circuitry
IPC: H02M7/06
Filed: 1968-08-30
Abstract: 1,243,050. Electric converting systems. BROWN, BOVERI & CO. Ltd. 30 Aug., 1968 [2 Sept., 1967], No. 41465/68. Heading H2F. Protection of a bridge rectifier element due to overvoltage, when a switch 1 is opened on load, is provided by an overvoltage arrestor 7 which shunts a portion only of an inductance means including a smoothing choke 5 in series with a load 6 which may be in the form of a D.C. traction motor. The excess voltage is induced by the choke 5 if a switch 1 is opened. The arrestor normally offers a high impedance but when ignited by an overvoltage assumes a low impedance condition. The current is limited by the part of the inductor 5 not shunted by the arrestor or by the motor inductance if sufficient in which ease the whole of the inductor 5 may be shunted. The motor may drive a locomotive, the switch 1 being a take-off mechanism from an overhead A.C. supply line, which mechanism may somtimes "jump" and interrupt momentarily the supply to the rectifier. The A.C. input may be 3 phase.
Patent GB-1364139-A (GB)
Title: Detection of ice or water
IPC: G01W1/14
Filed: 1972-09-08
Abstract: 1364139 Electro-physical measurement - ice detectors MONSANTO CO 8 Sept 1972 [9 Sept 1971] 41701/72 Heading G1N The presence of ice or moisture on a surface is detected by the amount of micro-wave energy reflected back from a window in the surface. The system is applicable to airport runways, highway bridges, using a "window" of e.g. P. T. F. E. in a housing for the apparatus buried in the ground. In the simplest arrangement the "window" is coupled through a waveguide to the micro-wave generator and the reflected energy bled-off by a directional coupler Fig. 1 (not shown), or the changes in the standing wave pattern may be used to determine the reflected energy Fig. 2 (not shown); however preferably the ratio of the reflected to incident energy is measured using two directional couplers 15, 20 as illustrated in Fig. 3. Alternatively a three-port-circulator may be used to isolate the incident energy detector, and to bleed-off the reflected signal, Fig. 4 (not shown).  To determine whether the signal is due to ICE OR WATER a window thermometer and a heater may be provided. On receipt of a reflection signal the heater is switched on and the variation (if due original to ice) noted, Fig. 5 (not shown). Alternatively Fig. 6, two windows are provided at the ends of the cross-limb of a "magic-T", the window 14b being heated. The sum of the reflected signals being extracted from the 3-port circulator on the feed-arm of the T and the difference between the reflections from the two windows (indicating ice) being detected at 32 on the other arm. Air temperature and humidity detectors may be used in combination with the above apparatus.
Patent GB-1001456-A (GB)
Title: Improvements in or relating to the application of liquids to textile fabrics and thelike
Inventor: DOLEMAN JACK
IPC: D06B3/10
Filed: 1962-11-06
Abstract: The method of applying liquids to materials in accordance with parent Specification is modified in that the excess liquor is conducted away by a covering of porous resilient material which consists of a foamed material having unconnected cells, there being open pores at the surface of the covering.  The material used in the preferred embodiment is neoprene.  The covering may be an annular cover on a roller with a non-porous resilient cover there-beneath or it may be in the form of a continuous belt passing around the roller and around a further roller remote from the first.
Patent GB-1311950-A (GB)
Title: Electrical overcurrent protection means
IPC: H02H7/08
Filed: 1970-09-02
Abstract: 1311950 Protective arrangements ALLMANNA SVENSKA ELEKTRISKA AB 2 Sept 1970 [3 Sept 1969] 41901/70 Heading H2K An overcurrent protective arrangement comprises a fuse 8 connected in the protected circuit, e.g. of a motor 41 supplied from a converter 3, a capacitor 9, means 11 ... 13 to charge the capacitor, and current sensing means 14 ... 25 to provide a signal to a switching device, e.g. a thyristor 10, to connect the capacitor across the fuse so that the discharge of the capacitor blows the fuse. The current sensing means may comprise a reactor 14, the voltage drop across the reactor 8, when a sudden current increase occurs, being integrated by an amplifier 16 with a feedback capacitor 17 and resistor 18. When the output voltage from the amplifier 16 exceeds a fixed reference voltage from a source 23, a potentiometer 22 and a resistor 21, it causes an amplifier 20 to provide a signal to a further amplifier 24 which supplies a triggering signal to the thyristor 10.
Patent GB-1450398-A (GB)
Title: Temperature control arrangement
IPC: G05D23/00
Filed: 1973-09-06
Abstract: 1450398 Automatic temperature control NIPPON ELECTRIC CO Ltd 6 Sept 1973 [7 Sept 1972] 41936/73 Heading G3R [Also in Division H1] An arrangement for keeping constant the temperature of an oven which contains a crystal oscillator 3, Fig. 4, and an electric heater 5 comprises means for detecting the oven temperature and producing an error signal corresponding to any difference between the actual and a desired temperature, electrical means for integrating the error signal, and means responsive only to the output of the integrator for controlling the power to the heater. As shown the oven comprises a metal enclosure 4 supported by a bar 7 in a vacuum bottle 1 within a case 10; terminals 8 are provided for the heater 5 and a temperature sensitive resistor 6. The detector is connected in a bridge circuit, Fig. 3, and the error signal fed to a D.C. integrating amplifier Á 31 having a time constant fixed by R37 and C31. The amplifier controls a power transistor TR31 and thus the heater RH31.
Patent GB-1528351-A (GB)
Title: Underwater connector
IPC: H01R13/523
Filed: 1975-12-18
Abstract: 1528351 Connector STANDARD TELEPHONES & CABLES Ltd 18 Dec 1975 [26 Sept 1974] 41968/74 Heading H2E A connector comprises two body parts 13, 17 defining a cavity which contains the electrical contacts 11, 15 pressurized insulant 24 and means 25 for releasing the insulant upon mating for purging the cavity. In an embodiment (Figs. 1 and 2) rings 19 and ring nut 20 secure and seal the two parts together. Conductors 12, 16 enter the cavity defined by the two parts through glands compressed by gland nuts 14, 18 respectively. Upon mating a cutter 25 releases the insulant from capsule 24, which purges the cavity; excess insulant escapes through duct 26 controlled by an adjustable valve 27. The insulant may be air inert gas, oil or plastic mastic and the capsule may contain a diaphragm separating insulant from a pressurized gas or have a plurality of vessels for different substances which upon release, by mixing or reacting together form the insulant. The connector may be used underwater or in an explosive atmosphere.
Patent GB-855664-A (GB)
Title: Circular air spring with variable contour piston
IPC: B60G11/28
Filed: 1958-12-31
Abstract: 855,664. Pneumatic springs. GENERAL TIRE & RUBBER CO. Dec. 31, 1958 [Jan. 20, 1958], No. 42249/58. Class 108(3). A piston member for an air spring has means which vary the contour of the side walls of the piston. In one embodiment the piston member comprises top and bottom plates 14, 18, Fig. 2, which are spaced apart by tubular members 15, 28. The walls of the piston are formed by a flexible member 21. The wall 21 consists of two plies of rubber with intermediate metal stays. Two sets of stays are used, one set above and one set below the waisted portion of the piston. To force out the walls of the piston to the position shown dotted in Fig. 2 hydraulic fluid is forced into the inside of the piston through an orifice 32. The piston may be inflated pneumatically. The spring characteristics may be varied by making the pressure within the piston equal to or greater than the maximum pressure within the air spring. In a second embodiment, Fig. 6, the walls of the piston 58 are moved outwardly by fingers 67 pivoted on a plate 64. The fingers 67 are moved outwardly by a conical spreader member 68. A control rod 70, pinned to the member 68 by a pin 69, and mechanically, hydraulically or pneumatically operated moves the member 68. Alternatively the member 70 may be fitted with a lock nut arrangement so that the piston may be locked with its wall in any desired shape. In a third embodiment a cap portion 76, Fig. 10, of a piston wall 74 is expanded by fluid which enters the piston through passages 83, 81 and a flexible tube 78. The fluid passes into a channel 77. A series of metal stays 90 are disposed in the cap. A similar cap may be fitted to the bottom of the piston so that both ends of the piston contour may be varied. Each of the pistons may be used with any diagraphm-type air spring.
Patent GB-1205252-A (GB)
Title: A vehicle having a duct construction supporting power carrying means
IPC: B62D25/20
Filed: 1967-09-20
Abstract: 1,205,252. Vehicle floors. CRANE FRUEHAUF TRAILERS Ltd. 20 Sept., 1967 [7 Oct., 19661, No. 42739/67. Heading B7B. [Also in Divisions F2 and H2] . A vehicle has a floor 24 and includes a duct 11 of channel shaped cross-section supported below the top surface of the floor 24 with its open side facing downwardly, and spaced insulating means 22 within the duct supporting power carrying means 12, 13, 14. In the construction shown the duct is supported by flange portions 18, 19 which are gripped at spaced intervals by bracing members 21, the assembly being screwed to a transverse chassis member 25. The insulating means 22 are cushions composed of a resilient material such as sponge rubber. The power carrying means comprises a pair of air brake lines 12, 13 and an electrical cable 14. The cable is connected to a protected plug (Fig. 5, not shown) and the plug and terminals of the air brake lines are mounted on the forward end of the vehicle, i.e. atrailer (Figs. 3, 4, not shown).
Patent GB-1318367-A (GB)
Title: Disc brake assemblies
IPC: F16D55/2255
Filed: 1970-09-07
Abstract: 1318367 Spot-type disc brakes KNORRBREMSE GmbH 7 Sept 1970 [9 Sept 1969] 42827/70 Heading F2E A disc brake has a caliper 3 pivotally mounted on a support 2 at two locations by means of belts 11 passing through forked end portions 10 of caliper 3. Between each respective pair of forked end portions 10 extends a lug 9 through which extends a locating bolt 11 screwed into the pair of forked portions for attaching a mounting pin member 4 to caliper 3. The cylindrical portion 5 of one pin 4 has a recess 12 accommodating a coil spring 13. Anchoring pins 7 are inserted into grooves 6 in cylinders 5 to allow pins 4 movement relative to the support 2 longitudinally along a first axis of rotation 8 so that when one pad 17 is pressed against disc 1 of the brake, caliper 3 pivots about axis 8 to apply the other pad 18 by reaction, pins 4 being rotated in their mounting in support 2. To dismantle the disc brake one of the two bolts 11 is removed allowing the caliper to be swung away from disc 1 about a second axis, perpendicular to axis 8, at the location of the other bolt 11. The disc brake may be actuated by fluid pressure cylinders 14 or manual actuator 15.
Patent GB-1205943-A (GB)
Title: Improvements in or relating to membranes impermeable to liquids but permeable to gases, in particular for primary and secondary cells
IPC: H01M2/12
Filed: 1967-09-21
Abstract: 1,205,943. Microporous films. LES PILES WONDER S.A. 21 Sept., 1967 [22 Sept., 1966], No. 42977/67. Heading B5B. [Also in Divisions B1, B8 and H1] A gas permeable membrane comprises a microporous piece of polytetrafluorethylene or polytrifluoromonochloroethylene which is impermeable to liquids which make an angle of wetting to the microporous piece of greater than 90 degrees. The membrane may be incorporated in a stopper at the gas outlet of an electrolytic cell. The membrane may be formed by mixing the powder of the perhalogenated aliphatic hydrocarbon with an expander which generates a pore forming gas when heated, compressing the mixture in a mould and heating it to form the pores and harden it. Alternatively, the mixing before heating may be mixed with a jellifying agent, spread on a flat plate and heated. Examples 1 and 2 relate to these methods.