baber/WOPTO huggingface dataset:
Patent GB-1147147-A (GB)
Title: Thyristor circuits
IPC: H02M7/155
Filed: 1967-12-07
Abstract: 1,147,147. Protecting thyristor circuits. WESTINGHOUSE ELECTRIC CORP. 7 Dec., 1967 [12 Dec., 1966], No. 55589/67. Heading H3T. [Also in Division H2] A thyristor V is fired if the voltage across it exceeds a given value by connecting across it a series circuit comprising a unidirectional conductor 76, a threshold device 78 and a capacitor 82, the capacitor being connected to the gate through a breakdown device 84. In the circuit shown the threshold device is a Zener diode and the breakdown device is a Schockley diode. When the voltage across the thyristor exceeds a safe blocking value the Zener diode conducts, charging capacitor 82 until its voltage is sufficient to make the Schockley diode conduct. The capacitor then discharges into the gate and the thyristor conducts. An inductor 62 prevents too rapid a rise in current through the thyristor. The thyristor is one of a series of four (V, U, U, U) connected in series in a string with other groups represented by UX, and components 58 and 60 ensure equal distribution of the voltage. The string of thyristors is one of six similar strings 10, 16, 30, 36, 38, 40 connected between an A.C. circuit 12 and a D.C. circuit 24, 26 to convert A.C. to D.C. or D.C. to A.C. Additional strings may be connected in parallel and commutating capacitors may be provided. The output may be varied by pulse width control. The thyristors may be fired by radiant energy as described in Specification 1,147,146.
Patent GB-1359546-A (GB)
Title: Vehicle-steering gear
IPC: B62D7/22
Filed: 1971-12-01
Abstract: 1359546 Power-assisted steering mechanism DAIMLER-BENZ AG 1 Dec 1971 [5 Dec 1970] 55765/71 Heading B7H In a servo vehicle-steering gear comprising a worm 14 which is located axially in a gear casing 10 serving as a cylinder for a working piston 11 and has screw engagement with a nut 15 which is rotatable, but not axially movable, in relation to the piston 11, a member 17 for actuating a valve controlling the working pressure in the cylinder is coupled to the nut 15 by a straight edge 16 so as to respond to angular deflections of the nut but not axial movements thereof. The worm 14 is located axially in the casing 10 by springs 36, 37 inserted between a collar 28 on the worm shaft and races 26, 27 of angular contact ball-bearings 24, 25. The springs 36, 37 are annular disc springs and are under initial stress in a mean position of the worm. A ring 38 having conical abutment surfaces is located between the springs 36, 37.
Patent GB-1405997-A (GB)
Title: Method and apparatus for collecting mineral aggregates from sea beds
IPC: E21C45/00
Filed: 1973-12-05
Abstract: 1405997 Dredging apparatus INTERNATIONAL NICKEL CO OF CANADA LTD 5 Dec 1973 [21 Dec 1972] 56252/73 Heading E1F Mineral aggregates 26 lying on or just below the uper surface 25 of a submerged layer of silt are collected therefrom by an apparatus that compresses the aggregates lying on top of or projecting above the surface of the silt down into the silt, shears away and raises the upper, aggregate-containing layer of the silt, causes the silt of this layer to be washed away from the aggregates, and appropriately discharges the resultant concentration of aggregates. The apparatus comprises a body having a forwardly and upwardly inclined leading face 12 and a flat undersurface, a shearing blade 15 positioned below the body at the rear end thereof to extend over all or substantially all the width of the body, and a collecting and discharge duct 16 that extends upwards and rearwards from the blade to a coupling for a discharge pipe and has an apertured rear wall 27 that allows silt to pass out of the duct whilst the aggregates are retained therein. The aggregates may be discharged from the pipe into a separate, towed, aggregates-receiving container, or to aggregates-receivng means at the surface, or back onto the silt for subsequent collection by some other suitable means. The front wall 31 of the duct may be apertured to allow of entry of silt-flushing water or the water may enter the duct from a conduit 21 in which is situated a powered impeller 22. The intake of such a conduit 21 is preferably at a height above the leading face of the body as to ensure that water entering the conduit is substantially free from silt. The blade is united to the body by spaced, vertical gusset plates having downwardly and rearwardly inclined leading edges so as to form a grid with which a poweroperated, material-clearing comb can be associated. The blade may be straight or may have a straight central portion and forwardly extending wing portions. The weight and dimensions of the apparatus are such that the downpressure exerted by the apparatus on the silt is from 0.25 to 1.00 pounds per sq. in.
Patent GB-1169576-A (GB)
Title: Panty Garment
IPC: A41C1/00
Filed: 1966-12-15
Abstract: 1,169,576. Panty girdles. SARONG, Inc. 15 Dec., 1966 [30 Dec., 1965], No. 56320/66. Heading A3V. A panty girdle comprises body sections 10, 11 secured together along edges 20-23 with the front, rear and crutch panel 14, 16, 18 of one section overlying the front, rear and crutch panels 15, 17 and 19 of the other. The edges 44, 45 of the crotch pieces 19, 18 help to define leg openings; the edges 31 lie higher on the body of the wearer than the edges. 44, 45 and with free portions 32-35 of the lower edges of the front and rear panels form pressure bands, which may, as shown, be reinforced by tapes. The pressure bands are about one inch shorter in length than the edges 44, 45 and they take up the tension at the innercrutch region when the wearer walks, so that the edges 44, 45 do not ride up. The edges 44, 45 may be prevented from rolling up by elastic bands located in hems along the edges. The front panels 14 and 15 are joined along their top edges and edges 20, 21 and the rear panels are similarly interconnected. In modified forms upper portions of the front panels 14, 15 may be secured together at regions other than those edges or may be replaced by a single layer as long as the lower portions the panels remain free to move relative to each other.
Patent GB-1406694-A (GB)
Title: Mechanized filing cabinets
IPC: A47B63/06
Filed: 1972-12-07
Abstract: 1406694 Storage systems SPERRY RAND CORP 7 Dec 1972 [19 April 1972] 56516/72 Heading A4T  A device for locking containers to their respective carriers 1 supported by endless moving chains in a filing or storage cabinet comprises a locking member 25 suspended from threads 23 which are connected to a bell-crank lever 21 pivotable by a pusher bar 12 which pivots the bell-crank 21 to raise the locking member 25 above the upper edge 1a of the carrier 1 and displace the container to its working station. Following displacement of the container on to the carrier and release of the bellcrank the locking member 25 assumes its locking position and the locking position is sensed by a proximity switch 19 which is responsive to the vertical movement of the locking member.
Patent GB-1187890-A (GB)
Title: Rendering Polyvinyl Butyral Films Tack-Free.
Inventor: JENSCH WOLFGANG
IPC: C08J7/04
Filed: 1968-11-28
Abstract: 1,187,890. Coated films. DYNAMIT NOBEL A.G. 28 Nov., 1968 [1 Dec., 1967], No. 56598/68. Heading B2E. A process for producing a tack-free film of plasticized polyvinyl butyral comprises coating a tacky film of plasticized polyvinyl butyral with a mixture of polyvinyl butyral, a solvent therefor, and a precipitant therefor and thereafter drying the coating by treatment with a precipitant for polyvinyl butyral in the form of a vapour. The precipitant may be an aliphatic low-boiling hydrocarbon such as petrol fractions, ethers such as diisopropyl ether, water and mixtures thereof. Exemplified solvents are a mixture of equal parts of methanol and methyl acetate, and mixtures of 60 parts methanol and 40 parts acetone. When water is used as the precipitant it may be in the form of moist air.
Patent GB-569879-A (GB)
Abstract: 569,879. Totalizators. UNION TOTALISATOR CO., Ltd., and HANDLEY, J. June 10, 1943, No. 9332. [Class 40 (i)] [Also in Group XIX] An aggregating and displaying apparatus for totalizators comprises a motor 4 which drives through a slipping clutch 7 an intermediate shaft 1 geared to the units shaft A of the displaying device. The intermediate shaft 1 is connected by gearing 35, 34 to a primary shaft 32, 33 to which are coupled escapement wheels 12, 13, 14 controlled by respective electromagnets 17, 18, 19 which respectively receive impulses corresponding to bets of different values. The escapement wheels are connected through springs 20 and differential gears 15, 16 to the shafts 32, 33 the gearing permitting the shafts to move a different amount in the case of each electromagnet, the several amounts being added in the differential gears in the case of the simultaneous actuations of several magnets. If the intermediate shaft 1 tends to run ahead of the digit spindle A the increasing load on a dog clutch 23 on the shaft 1 causes the clutch to move against a spring 25 to close signalling contacts 26. The speed of the motor 4 is controlled through contacts 28 by a governor 27 other contacts 29 operating to hold up betting if the motor speed is reduced below a certain point. A grand total aggregator. may be provided, fitted with a centrifugal governor. The units shaft A is connected to higherorder shafts through the transfer mechanism described in Specification 454,715, [Group XIX]. Specification 454,653, [Group XIX], also is referred to.
Patent GB-575025-A (GB)
Abstract: 575,025. Domestic fireplaces. INTEROVEN STOVE CO., Ltd., and PASCALL, F. Sept. 29, 1944. No. 18658. [Class 126] A sliding plate damper for a domestic fireplace fitted with a boiler has controlling means pivotally mounted on the front of the boiler and freely engaging with the damper. The damper f for the flue behind the boiler works in guides f<20> on the top plate e of the fireplace. On the front of the boiler d are two sockets d" to receive pintles g<1> formed on the casting g, which forms the . controlling means and passes through a slot in the damper, the casting being provided with an ear g<3> for engagement with an operating tool.
Patent GB-1408451-A (GB)
Title: Apparatus for collecting contaminated water
IPC: C02F1/40
Filed: 1972-12-13
Abstract: 1408451 Removing floating layer from liquid surface L CHASTAN-BAGNIS 13 Dec 1972 [4 Feb 1972] 57545/72 Heading BID [Also in Division B7] An apparatus for collecting a floating layer 9 of contaminated water from the surface of a body 10 of water comprises a scoop 1 having an open inlet end 1A and a closed rear end 1B, the scoop being moved through the water, in use, to admit a continuous flow of contaminated water and adjacent clean water into its interior and carrying mounted adjacent the lower edge of the open front end of the scoop, a distributing head 6 provided with a plurality of rearwardly facing nozzles 7 to direct a current of water pumped in through pipe 5 into the scoop and create a laminar flow of water within the body of the scoop. Clean water escapes through an opening 3 in the bottom of the scoop, whilst contaminant 9 builds up at the rear of the scoop and is removed by outlet pipe 8. An air compressor 11 creates a surface air flow which aids the build up of contaminant 9 to a level above the surface level of the surrounding body of water.
Patent GB-1395518-A (GB)
Title: Benzodiazocine derivatives
IPC: C07D487/04
Filed: 1972-12-14
Abstract: 1395518 Benzodiazocine derivatives TAKEDA YAKUHIN KOGYO KK 14 Dec 1972 [24 Dec 1971 18 Nov 1972] 57711/72 Heading C2C Novel pyrimido benzodiazocinones of the general formula wherein -Z- is -CO-C(R<SP>1</SP>) = C(CH 2 R<SP>1</SP>)-, in which R<SP>1</SP> is a hydrogen atom or an alkyl or phenyl group, each of R<SP>2</SP> and R<SP>3</SP> is a hydrogen atom or C 1-3  alkyl group and rings A and B are optionally substituted by at least one halogen atom or nitro, trifluoromethyl, C 1-4  alkyl or C 1-4  alkoxy group, and pharmaceutically acceptable acid addition salts thereof are prepared by cyclodehydrating a benzodiazocine of the general formula followed optionally by salification of the product. Novel benzodiazocines of the second general formula above are prepared by reacting compounds of the general Formulµ Pharmaceutical compositions having sedative, antiinflammatory, anticonvulsive, sleep-potentiating and diuretic activity comprise, as active ingredient, a pyrimidobenzodiazocinone of the first general formula above or a pharmaceutically acceptable acid addition salt thereof or a benzodiazocine of the second general formula above, together with a non-toxic pharmaceutically acceptable carrier or diluent therefor, and may be administered orally or parenterally.
Patent GB-1163415-A (GB)
Title: Improvements in or relating to the Manufacture of Yoghurt or Similar Milk Products
Inventor: BURK JOACHIM
IPC: A23C9/12
Filed: 1966-12-23
Abstract: 1,163,415. Yoghurt. J. BURK. 23 Dec., 1966 [23 Dec., 19651, No. 57799/66. Heading A2B. [Also in Divisions B8 and C6] In the preparation of yoghurt, the cultured milk is incubated and subsequently cooled in wide-necked flasks placed in a stack of transport containers 30, having aligned apertures 16 and 18, within an incubation chamber and air introduced into the chamber flows through the apertures between the columns of flasks in a smooth flow, which is as far as possible free from eddies, along the individual flask walls at such a velocity that at no point in the chamber is it possible for local temperature differences to be established of a magnitude which would be significant for the uniformity of the yoghurt prepared in a batch. The flasks are thin-walled and made from synthetic plastics material. For the cooling, dry cold air is preferably passed downwardly in counterflow to the ascending heat of the batch, though the direction of flow may be periodically changed. The container has stacking tabs 36, 38, and recesses 42, 44. It may be made of corrugated cardboard and may have a lid with apertures, corresponding to 16 and 18.
Patent GB-1197198-A (GB)
Title: Device for and Method of Plant Propagation
IPC: A01G9/10
Filed: 1967-12-20
Abstract: 1,197,198. Plant propagators. O. MELVOLD and L. F. KOXVOLD [trading as ME-KOX INDUSTRI, MELVOLD & KOXVOLD]. 20 Dec., 1967 [21 Dec., 1966], No. 57810/67. Heading A1E. [Also in Division B8] Plants are propagated in a device including a strip of foil material, e.g. plastics, formed into a plurality of separable pockets 2, each pocket containing at least one compressed briquette of plant growth material 1, which briquettes are swelled by the addition of water to fill the pockets. A seed is then sowed in the moist growth medium and is allowed to germinate and grow into a plant of a size suitable for planting out. Each pocket has an opening at the bottom for water to enter and drain from the growth medium. In Figs. 5 and 6 (not shown) two briquettes are disposed in each pocket and a side wall of each of the pockets is provided with drainage holes. When the plants are of a suitable size they are mechanically removed from the pockets together with the growth medium, and planted into the ground.
Patent GB-1347330-A (GB)
Title: Pressure sensitive recording materials
IPC: B41M5/145
Filed: 1971-12-15
Abstract: 1347330 Phthalide compounds HODOGAYA CHEMICAL CO Ltd and FUJI PHOTO FILM CO Ltd 15 Dec 1971 [28 Dec 1970] 58360/71 Heading C4P [Also in Division D2] Novel compounds of the formula wherein R 1  is H, CH 3 , C 2 H 5 , COCH 3  or benzyl; R 2  is CH 3  or C 2 H 5 ; R 3  is H, CH 3  or C 2 H 5 ; R 4  is CH 3  or phenyl; X is CH 3 , OCH 3  or OC 2 R 5 ; Y is H, Cl, Br or N(CH 3 ) 2 ; and n is 1, 2, 3 or 4 are prepared by condensing, in the presence of a condensing agent and at a temperature of 50- 130‹ C., (a) a 2-carboxy-2<SP>1</SP>-X-4<SP>1</SP>-NR 1 R 2 - benzophenone with a 1-R 3 -2-R 4 -indole; or (b) a 1 - R3 - 2 - R 4  - 3 - (21 - carboxy - benzoyl)- indole with a 1-NR 1 R 2 -3-X-benzene. They are used as colour-formers in pressure-sensitive copying paper (see Divison D2).
Patent GB-1203270-A (GB)
Title: Improvements in and relating to calcium silicate insulation
Inventor: LAIDLER THOMAS GORDON
IPC: C04B28/18
Filed: 1967-12-27
Abstract: 1,203,270. Calcium silicate insulation. CHEMICAL & INSULATING CO. Ltd. 18 Dec., 1968 [27 Dec., 1967], No. 58652/67. Heading C1H. A CaSiO 3  slurry is mixed with up to 10% of defined fibres, moulded and autoclaved hydrothermally at 140-200‹ C. to give a heatinsulating product free from macroscopic voids. Up to 0À5% of NaOH can be added to the slurry.
Patent GB-1412710-A (GB)
Title: Battery cases
IPC: H01M50/222
Filed: 1973-12-20
Abstract: 1412710 Storage battery mounting TUDOR AB 20 Dec 1973 [2 Jan 1973] 59081/73 Heading H1B A battery case of reinforced plastics material has its side walls 1 extended by a flange 3 below the case bottom 2. The flanges 3 are provided with a series of spaced holes through which mounting pins 5 may extend to secure the case against a shoulder 6 on a structure 7. Fig. 2 shows two cases mounted side-by-side. In another construction, Fig. 3, the flanges 3 have an inclined surface engaged by a corresponding surface of a shoulder 9.
Patent GB-1380706-A (GB)
Title: Socket for pin and socket connections and a method of making same
IPC: H01R13/405
Filed: 1971-12-21
Abstract: 1380706 Moulding electric sockets PRESSAC Ltd 11 Jan 1973 [21 Dec 1971] 59276/71 Heading B5A [Also in Division H2] A trough-like metal socket 1 is embedded in an insulating moulding compound which penetrates holes in the socket to key the internal and external regions 10 and 7 together. Inturned edges 8 and rib 11 are formed in the socket to contact a mating pin, space for which is provided by inserting, during moulding, a temporary core 9 of diameter slightly larger than the contact pin.
Patent GB-1405647-A (GB)
Title: Cooking bags
IPC: A47J36/02
Filed: 1972-12-22
Abstract: 1405647 Cooking-bags COLGATEPALMOLIVE CO 22 Dec 1972 [9 June 1972] 59322/72 Heading A4D [Also in Division B8] A cooking-bag 11 comprises a body 12 having walls made of thin, flexible, heat-resistant, transparent film, and a deformable metal-foil band which is used for closing the bag and is bonded to the film surface by a flexible bonding layer (18), Fig. 5 (not shown), resistant to oven temperatures. After insertion into the bag of, for example, a piece of meat (19), Fig. 4 (not shown), the open end 16 of the bag may be twisted or folded to form a closure joint (21), Fig. 4 (not shown). The band 17 shown comprises a single strip which extends approximately the width of the open end 16 and has a width W greater than the circumference of the closure joint (21) enabling the band to wrap completely around the closure joint at least once in for example a helical configuration. The cooking bag (11) of Fig. 7 (not shown), has a band (17) which comprises a single strip extending transverse to the open end (16) and having a dimension (L) greater than the circumference of the closure joint formed in use of the bag. The cooking bag of Fig. 6, (not shown), has a band comprising three separate strips (17a), each strip having a dimension (L) greater than the circumference of the closure joint formed in use of the bag. The body 12 of the bag may be formed from a rectangular plastics film which is folded and heat-sealed to form the edges 13, 14 and the end 15. A band comprising a single strip or several separate strips may be provided on each side of the bag.
Patent GB-1374454-A (GB)
Title: Biological method of producing amino acids
IPC: C12P13/04
Filed: 1971-12-21
Abstract: 1374454 L - tryptophan and derivatives AJINOMOTO CO Inc 21 Dec 1971 [22 Dec 1970] 59436/71 Heading C2C [Also in Division C3] L-tryptophans of the formula where R is hydrogen, hydroxy, amino or methyl are prepared by reacting the corresponding indole with ammonium ions and at least one of pyruvic acid, oxaloacetic acid, malic acid, fumaric acid, glyoxylic acid, lactic acid and salts and other derivatives thereof, in an aqueous solution in the presence of tryptophanase or a source thereof. Vitamin B 6 , inosine and/or reducing agents may be present. The enzyme source may be the enzyme itself, a broth in which a microorganism capable of producing the enzyme is cultivated, a cell-free filtrate thereof, an aqueous suspension of the cells or of ground cells, or a filtrate thereof. Suitable microorganisms belong to the genera Escherichia, Aerobacter, Erwinia, Pseudomonas, Xanthpmonas, Proteus, Citrobacter, Paracolobactrum, Salmonella, Clostridium and Kluyvera. In examples in which inosine is present in the production of L-tryptophan, a L-tryptophaninosine complex is precipitated.
Patent GB-1341412-A (GB)
Title: Thermostable heterocyclic polymers and method of producing same
IPC: C08G73/20
Filed: 1970-12-30
Abstract: 1341412 Polyimides; polyimidazopyrrolones INSTITUT KHIMICHESKOI FIZIKI AKADEMII NAUK SSSR 30 Dec 1970 [7 Jan 1970] 61830/70 Heading C3R Thermostable heterocyclic polymer (PI) or (PIP) is made by reacting an amine monomer being aromatic diamine(s) and/or tetramine(s) or hydrochlorides thereof at 0-350‹ C. with an aromatized bis-adduct monomer (VI) formed by the Diels-Alder reaction between maleic anhydride and a bis-furanic compound (VII) in an inert atmosphere of argon, N 2 , CO 2 , or He, where: Ar is an optionally substituted aromatic group containing 1-3 rings; Ar<SP>1</SP> is an aromatic group containing 1 or 2 rings; R is H or aryl; M is (a) -CH=N-R<SP>1</SP>-N=CH- where R<SP>1</SP> is arylene, (b) arylene, (c) where R<SP>IV</SP> is arylene, (d) where R<SP>V</SP> is where R<SP>VI</SP> is H or OH, or (e) a single bond; n is 1 or 2; and m is a number such that intrinsic viscosity in H 2 SO 4  at 25‹ C. is #0-0À6 dl./g. The reaction may be performed at 0-100‹ C. in an organic solvent being dimethyl-formamide, -acetamide, or -sulphoxide, or N-methyl-pyrrolidone, followed by heat-treatment at 150-350‹ C. in vacuo. Also present may be 0À1-1À2 moles/l of LiCl, KCl, NaCl, KBr, or KI. Or the monomers may be reacted in polyphosphoric acid at 160-210‹ C., followed by treatment at 200-250‹ C. in vacuo. The heat treatment in vacuo may be performed on the uncyclized polymer in the form of a powder, film, or fibre, to effect cyclization. The monomers may also comprise a tetracarboxylic acid dianhydride. The uncyclized polymer comprises -COOH groups and optionally -NH 2  groups. The cyclized polymers may be dissolved in conc. mineral acids and formed into fibres. The polymers are also soluble in cresols, phenols, dichlorobenzenes, pyridine, and dimethylformamide and sulphoxide. The polymers may also be formed into moulded articles and foamed plastics, and may be used as a binder for laminated plastics. Reference has been directed by the Comptroller to Specification 903,271.