baber/WOPTO huggingface dataset:
Patent GB-1356367-A (GB)
Title: Pulse modulator
IPC: H04L27/04
Filed: 1973-02-01
Abstract: 1356367 Pulse generators; thyristor circuits NORTH AMERICAN ROCKWELL CORP 1 Feb 1973 [4 Feb 1972] 5142/73 Heading H3T In a pulse generator of the type in which a charge storage device (e.g. 11) is charged by a network (e.g. 13, 15) and discharged through a thyristor 16 and in which a delay reactor (e.g. saturable inductor 14) delays the discharge current while the thyristor becomes conductive, a lower voltage charging circuit is connected to the thyristor via a pulse forming network 18 to build up current in the thyristor while the delay reactor is effective. In Fig. 3, not shown, the charge storage device is a capacitor (111) connected in series with the primary of a transformer, the secondary of which feeds the load via a pulse forming network. Discharge of the capacitor charges the network and saturation of the transformer allows the network to discharge through the load. The two inductors 113  may be two parts of a supply transformer winding.
Patent GB-350897-A (GB)
Title: Improved insecticidal, insect-repelling and fungicidal compositions
IPC: A01N25/02
Filed: 1930-02-15
Abstract: Horticultural insecticides consisting of petroleum white oil, an emulsifying agent, and an insecticidal plant extract, with or without water, are protected against oxidation by means of an anti-oxidation catalyst, added preferably before emulsification of the oil. Suitable catalysts are phenanthrene, anthracene, diphenyl, toluidine, a -naphthol, camphor, nitrocresol, phenylhydrazine, and furoin.ALSO:Horticultural insecticidal and fungicidal sprays consist of a petroleum white oil, an extract of a plant having insecticidal properties, and an emulsifying agent.  Other fungicides such as copper or mercury compounds may be added and oxidation of the white oil may be prevented by the addition of an antioxidation catalyst. The active vegetable insecticide may be an extract of a plant of the class known as fish poisons, such as derris, lonchocarpus, or tephrosin, or an extract of pyrethrum or related plants, or both classes may be used in combination.  The insecticidal plant may be extracted with a solvent, the solvent evaporated and the dry extract dispersed in a colloid mill with white oil containing an emulsifying agent such as soap; or the plant may be extracted with the white oil with or without the addition of a volatile solvent such as alcohols, ethers, esters, ketones or aromatic hydrocarbons, the solvent being subsequently removed by distillation, or with the addition of a solvent such as pine oil, terpinol, phenol, cresol, cyclohexanol, hydrogenated or chlorinated naphthalenes, or halowax oil, which may remain in the preparation and facilitate emulsification.  Emulsifying agents such as fatty acid soaps, resin soap, saponin, soaps of petroleum sulphonic acids or sulphonated vegetable or animal oil may be employed, part of the emulsifying agent being added to the white oil used for extraction.  The preparations may be made as homogeneous liquids, practically free from water or as emulsions containing up to 35 per cent of water, in either case water being added at the time of use.  Antioxidation catalysts which may be added to prevent oxidation of the white oils and the development of acidity are: phenanthrene, anthracene, diphenyl, toluidine, a -naphthol, camphor, nitrocresol, phenylhydrazine, and furoin. These are added in small proportions before emulsification of the white oils.
Patent GB-653642-A (GB)
Title: Method of curing v-type belts
IPC: B29D29/10
Filed: 1948-02-23
Abstract: 653,642. Moulding power transmission belts. GATES RUBBER CO. Feb. 23,1948, No. 5319. Convention date, May 27, 1946. [Class 87 (ii)] [Also in Group XXIV] A V-type transmission belt 19, of uncured rubber composition having inner and outer surfaces and a tension layer 20 of flexible cables positioned in the belt adjacent the outer surface, is cured by applying the belt to two axially parallel spaced rollers 13 with its outer surface in contact with the peripheral surfaces of the rollers, separating the rollers to put the belt under tension, whereby the flexible cables tend to move towards that side of the belt in contact with the rollers and subjecting those portions of the belt between the rollers to a curing treatment. This method of curing in the inverted position avoids distortion of the tension layer. The curing of these portions is done between heated platens 10, 11, 12 after which the rollers are revolved to bring the uncured portions between the platens. Between the tension layer 20 and an outer fabric covering 21 is a thin sheet of rubber composition. The belt may be made of rubber, or synthetic rubber or other curable composition, the tension layer of stranded steel cotton or rayon.
Patent GB-1236184-A (GB)
Title: Socket terminals and electrical connectors
Inventor: MERRY ROYDON WILLIAM
IPC: H01R13/428
Filed: 1970-02-04
Abstract: 1,236,184. Two-part couplings. AMP. Inc. 4 Feb., 1970 [27 Feb., 1969], No. 5321/70. Heading H2E. An electrical connector comprises a connector block 10 containing a contact member having one or two integral, inwardly-bowed tongues 5, each hooked 6 at its free end to hold said member in the block, said hooks engaging shoulders 13 of the block during insertion of a pin 7. A projection 8 on the member prevents further movement of the member in the mating direction. The member may be formed from brass sheet.
Patent GB-1451724-A (GB)
Title: D-2-substituted-6-alkyl-8-substituted ergolines and process for preparing same
IPC: C07D471/02
Filed: 1974-02-05
Abstract: 1451724 D - 2 - substituted - 8 - substituted ergoline derivatives ELI LILLY CO 5 Feb 1974 [28 Nov 1973] 05346/74 Addition to 1423065 Heading C2C Novel ergoline derivatives of the Formula II wherein X is Cl, Br, I, CH 3  or CN, R is CH 2 CN or CH 2 CONH 2 , and R<SP>1</SP> is C 2-4  primary alkyl, or a radioactive C 14  methyl group and pharmaceutically acceptable acid-addition salts thereof may be prepared by demethylation of the corresponding 6-methyl ergoline to give the 6-unsubstituted ergoline II and then alkylation at the 6-position. Pharmaceutical compositions of the compounds II are prolactin inhibitors.
Patent GB-1204037-A (GB)
Title: Wire-mesh panelling
Inventor: DOWNES JOHN BRIAN
IPC: E04B2/74
Filed: 1968-02-02
Abstract: 1,204,037. Partitions. PEERLESS FENCE & PRODUCTS Ltd. 28 Feb., 1969 [2 Feb., 1968], No. 5459/68. Heading E1W. [Also in Division Dl] Wire mesh panels 10 comprising a woven mesh the apices of which pass through a series of apertures in channel section struts 14, 15 of a rectangular framework, are bolted together and to telescopically adjustable posts 36 to form a partition. The ends of the wires which pass through the apertures are bent or welded to hold them in place. The members 14 and 15 may be slotted or welded together. In the bottom panel of the partition the members 15 are extended to form feet. The panels may be reinforced by horizontal cross struts comprising a pair of channels secured together through the mesh. Channel section reinforcing members may extend across the tops of adjacent panels in the partitions.
Patent GB-549964-A (GB)
Title: Device for preventing ships with damaged walls from sinking
IPC: B63B43/16
Filed: 1941-04-28
Abstract: 549,964. Stopping leaks. ABT, R. WOHLER-. April 28, 1941. No. 5475. Convention date, May 5, 1940. [Class 113 (i)] Plates 7, Fig. 1, for stopping leaks in ships' hulls are carried by ropes 16 connected at each end to carriers 5, 6 which, by ropes 21, can be moved to any required position along guide rails 3 extending along the ship's sides. The rails 3 are supported from the ship's rail 2 by bars 10 having ring members engaging grooves 9 in the rails 3 and the carriers 5, 6 are guided on the rails 3 by rollers 11, Fig. 4, and keys 14 engaging upper and lower grooves 12, 13 in the rails. The rollers 11 can move freely past the bars 10. At one end, the ropes 16 are wound round rollers 15 carried by the carriers 5, 6 and connected to hooks 22. The other ends of the ropes are hooked to the carriers on the opposite side of the ship and the rail 3 on which these last carriers are mounted is then rotated to tighten up the ropes. A rope is then attached to one of a number of hooks on this end of the ropes and secured to the ship's rail so that the rail 3 may be freed for operation on other closure plates at different positions along the ship's side.
Patent GB-1427662-A (GB)
Title: Dispenser device for sheet material
IPC: B65H35/00
Filed: 1974-02-06
Abstract: 1427662 Sheet material dispenser COLGATE PALMOLIVE CO 6 Feb 1974 [9 Feb 1973 14 June 1973] 5496/74 Heading B8M A dispenser for sheet material 1 comprises a housing adapted to be fastened to a mounting surface, means in the housing to support rotatably a roll of the material, a lid 20 articulated to an upper part of the housing, a dispensing slit 24 disposed to the rear of the lid adjacent the mounting surface, and a cutting means (e.g. row of teeth 26) disposed on the front surface of the lid at a distance from the slit defined by horizontal portion 25 and a part cylindrical portion of the lid, whereby the sheet material is supported by the lid from the slit to the cutting means.
Patent GB-840329-A (GB)
Title: Improvements relating to panel and shield assemblies
IPC: F16B9/02
Filed: 1957-02-19
Abstract: 840,329. Spring clips; stud-and-socket fasteners. F. T. PRODUCTS Ltd. Feb. 13, 1958 [Feb. 19, 1957], No. 5614/57. Class 44. A metallic can 19 for shielding radio apparatus is fastened to a panel 20 by means of two or more fasteners 10 each formed from a single strip of metal into a U-portion with a web 11 and flanges 12, 15, the flange 12 having two prongs 13, 14 directed towards the web 11 and the flange 15 having sheared and bent therefrom a lug 17 formed with an elbow 18. The fasteners are mounted over the lower edge of the can wall with the prongs biting into the wall, and the elbows 18 are snapped past the edges of slots 21, 22 in the panel 20 and may be then soldered to the panel. The fasteners are preferably made from hard rolled phosphor bronze rendered spring hard after shaping. The slots may be other than rectangular in shape and may be replaced by a single aperture. In a modification internally directed deformations are substituted for the prongs 13, 14.
Patent GB-751513-A (GB)
Title: Improvements in and relating to electrical switching devices for high tension
IPC: H01H1/60
Filed: 1954-02-26
Abstract: 751,513. Switchgear structures. NAAMLOOZE VENNOOTSCHAP COQ. Feb. 26, 1954 [March 4, 1953], No. 5744/54. Class 38(5) In switchgear having switching rods 5 co-operating with fixed switch contacts (not shown), each rod is detachably coupled with the, driving mechanism so that it may be withdrawn from the gear whilst the fixed contacts are alive. The driving mechanism includes spaced parallel bars 4 (one shown) and the rod 5 has an abutment 8 which in one angular position of the rod abuts the bars 4 and in another angular position can pass between the bars 4. A knob 10 fixed against rotation relative, to the rod is axially movable on the rod against the bias of a spring 11. When the knob 10 is pulled, projections 12 extending from the knob are removed from locking engagement with recesses 13 in the bars 4. Then the knob may be turned so as to turn the rod 5 into the position from which it may be removed from the bars 4 and from the switchgear.
Patent GB-698281-A (GB)
Title: Improvements in or relating to hydraulic servo motors
IPC: G05D23/12
Filed: 1951-03-09
Abstract: 698,281. Fluid-pressure servomotor-control systems; hydraulic machines. HOBSON, Ltd., H. M., and GREENLAND, L. S. March 4, 1952 [March 9, 1951] No. 5746/51. Classes 69(ii) and 135 The effective delivery of a hydraulic pump 18 supplying liquid past a pressurizing valve 22 is varied by a servomotor 11 into both ends of which liquid is delivered by the pump through a branch line 20 upstream of the pressurizing valve and past restrictions 24, each end of the servomotor being provided also with a restricted outlet 30, 31 into a common exhaust line 27 leading either to the suction side of the pump or to the pump delivery line downstream of valve 22, and the effective area of outlet 31 is varied by a poppet, needle, or hinged plate valve 28. As shown, the servomotor acts through a cam 19 and tappet 17 to vary the stroke of the plunger 18 of a fuel delivery pump, but if the pump is of the fixed-delivery type, the servomotor actuates directly a needle valve controlling a spill from downstream of the pressurizing valve back to the pump inlet. Valve 28 may be actuated manually, by a further servomotor, by a temperature sensitive device, or by a capsule 32 subject to an engine condition, e.g. pressure. An over-ride valve subject to over-speeding of the engine may be provided in parallel with valve 28.
Patent GB-452770-A (GB)
Title: Improvements in apparatus for photographic reproduction with automatic adjustment
IPC: G03B27/36
Filed: 1935-02-22
Abstract: 452,770. Photographic projection - printing. BOUZARD & SES FILS, V., 10, Boulevard de la Bastille, Paris. Feb. 22, 1935, No. 5771. Convention date, 'Feb. 22, 1934. [Class 98 (i)] Reproduction apparatus with automatic focusing has supports for the copy, objective lens and sensitive surface, displacement of two of the supports being effected by two racks meshing with a pinion, rotatably supported on a movable carriage, and which is driven by a third rack inclined to the frame. The third support is fixed. A frame P supports three carriages K, L, T. The carriage K supports the holder for the sensitive surface, and the carriage T supports the copy holder. The objective lens is placed at B close to the wall E. The carriage L is traversed by a screwed rod controlled by a wheel J and two pinions x, y are mounted on a common axis 0 under the carriage L. The pinion x engages two racks C, C<1> connected to the carriages K, T, and the pinion y engages a rack S which in turn engages a fixed pinion A. The position of the pinion A is adjustable with respect to the frame P to allow replacement of objectives B of different focal length. Rotation of the wheel J in either direction determines automatic focusing for reduction or enlargement in accordance with the law of conjugate foci. The Specification as open to inspection under Sect. 91 comprises also modifications in which either the copy holder or the sensitive surface support is fixed, and the other members are moved by racks actuated by pinions which are rotated by chains fastened at one end to the carriage and at the other to a counterweight. Alternatively the rack may be fixed, and the carriages carry rotating pinions or screwed members. In Fig..2 (Cancelled) the image plane I and object plane M are adjustable at right angles to one another, and are connected together by chains or metal bands. A carriage E supports centres or pinions O, O<1> and is adjustable vertically by a screw V. The plane M is connected to a counterweight P<1> by a chain W passing over the pulley O. The plane I is connected to the counterweight P<1> and another counterweight P<3> by a chain U passing over the pulley O<1> A chain X passes over pulleys A, O, A<1> and to a weight P<2>. The position of the pulley A is adjustable to suit different objectives in accordance with the determining law. This subject-matter does not appear in the Specification as accepted.
Patent GB-1248430-A (GB)
Title: 4-phenyl-quinazolinone derivatives
IPC: C07D239/82
Filed: 1968-10-28
Abstract: 1,248,430. 2(1H)-quinazolinone derivatives. SANDOZ Ltd. 28 Oct., 1968 [30 Oct., 1967; 26 Feb., 1968; 1 July, 1968], No. 5792/71. Divided out of 1,248,428. Heading C2C. The invention comprises compounds of formula wherein R is F, C1, Br, NO 2 , CF 3  or C 1-4  alkyl, alkoxy or alkylthio, n is 1 or 2 and R 2  is Ph possibly containing up to 2 F, C1 or C 1-4  alkyl or alkoxy substituents or 1 Br or CF 3  substituent, provided that (a) when n = 1, R is not halogen, and if R is 7-Me, then R 2  is substituted Ph, (b) when n = 2 the R's may be the same or different and are halogen, alkyl or alkoxy. The compounds are prepared by reacting a correspondingly substituted o-isopropylaminobenzophenone with a C 1-5 -alkyl carbamate in presence of a Lewis acid at at least 140 C. Therapeutic compositions for oral or parenteral administration comprise compounds of the above formula, which have anti-inflammatory, analgesic, antipyretic and anti-bradykinin activity. Reference has been directed by the Comptroller to Specification 1,181,570.
Patent GB-588872-A (GB)
Title: Improvements in voltage doubler circuits
IPC: H02M3/18
Filed: 1945-03-08
Abstract: 588,872. Condenser arrangements. SUBMARINE SIGNAL CO. (LONDON). Ltd., and BIRD, W. G. March 8. 1045, No. 5803. [Class 38 (iv)] In a voltage doubler circuit, two condensers 11, 12 are charged alternately from a D.C. source V and are so connected in series that the voltages across them add, and the load 13 shunted by a condenser 15 is connected between one side of the D.C. source and a point which is brought periodically to the full doubled voltage through a rectifier 16 which prevents current from flowing from condenser 15 to that point. The condensers 11, 12 are charged by a double vibratory interrupter which first connects the voltage source to contacts 4, 6, therefore charging condenser 11, and then to contacts 5, 7, thus charging condenser 12. In the latter position the sum of the voltages across condensers 11, 12 is applied to condenser 15 and therefore across the load, but in the former position the applied voltage E would be the voltage across 11 only, but that rectifier 16 prevents a return flow of charge from condenser 15. The supply voltage E as shown in Fig. 4A is fairly level, consisting of steady periods CD while contacts 5, 7 are closed and periods of slow decrease DABC, while the contacts are open and contacts 4, 6 are made, when condenser 15 is discharging to the load.
Patent GB-962207-A (GB)
Title: Apparatus for dewatering suspensions
IPC: D21F9/04
Filed: 1963-02-13
Abstract: 962,207. Rotary drum filters. J. M. VOITH G.m.b.H. Feb. 13, 1963 [March 2, 1962], No. 5815/63. Heading BID. [Also in Division D2] Apparatus for dewatering suspensions comprises a rotary drum 3 partly submerged in the suspension 2 and provided with a plurality of suction boxes 6 distributed around the drum periphery, down pipes 7 (only four shown) for discharging water from the suction boxes into a discharge duct situated below the level of the suction boxes, outlets 8 for the pipes in at least one end face of the drum at points equidistant from, and spaced a substantial distance from, the axis of the drum, and means for varying the cross-section of the outlets. As described the means may be in the form of plates, each plate being adjustable to cover the desired area of an outlet, but preferably there is a single annular plate (Fig. 3 not shown) with holes corresponding to the outlets rotatably mounted on each end plate, with half the pipes 7 connected to each end plate. The connections 15 between the suction boxes 6 and the pipes 7 are preferably all in the same vertical plane equidistant between the end plates or in two or three planes symmetrically arranged with respect to the end plates. Alternatively the down pipes may be located in the end plates.
Patent GB-142597-A (GB)
Title: Means for indicating the level of a liquid
IPC: G01F23/16
Filed: 1919-03-08
Abstract: 142,597. Hyne, A. E., and Marsland, G. T. March 8, 1919. Indicators actuated by pressure of head of liquid.-The level of the liquid in a tank is indicated at a distance by means of air pressure transmitted through a pipe projecting downwards into the tank. The tube, which may be the usual sounding-tube, is mounted in the tank, and an inner tube 2 is screwed into it, extending downwards to the level to which it is desired to fill the tank. The lower end is flared outwards at 3 to decrease the width of the annulus 4 and minimize the effect of surging of the liquid. In an alternative form, the annulus may be closed at the bottom except for small openings 5. The outlet at the top of the space 4 communicates with a U- tube gauge 8, so that the liquid is displaced when the tank is filled to the level of the bottom of the tube 2. In another modification, the inner tube may be of small bore which is closed at the bottom except for a small opening. In this case, the inside of the tube communicates with the manometer.
Patent GB-456250-A (GB)
Title: Improvements in and relating to electric discharge lamp circuits
IPC: H05B41/10
Filed: 1936-02-27
Abstract: 456,250. Supply systems for discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Feb. 27, 1936, No. 5897. Convention date, Feb. 28, 1935. [Class 38 (iv)] Relates to an arrangement for starting and supplying a discharge lamp 6 and comprises a main supply transformer 1 connected in a constant current system, the secondary of which is in series with the primary of an auxiliary starting transformer 9, the secondary of which is connected to the lamp through a relay winding 11. At starting the relay 11 connects the main secondary 3 directly across the auxiliary transformer primary so that a large voltage is developed for starting. When the current reaches a predetermined value the relay 11 operates to connect the main secondary directly to the lamp. The transformer 9 has a large reactance so that no appreciable current flows during normal operation. The above arrangement avoids the long delay in restarting consequent upon a momentary interruption of current. A protective film cut-out 7 is connected across the main secondary 3.
Patent GB-1461282-A (GB)
Title: Electrical device for measuring flow velocity of a fluid
IPC: G01P5/10
Filed: 1974-02-08
Abstract: 1461282 Measuring wind speed electrically CANADA MINISTER OF NATIONAL DEFENCE 8 Feb 1974 [16 Feb 1973] 05941/74 Heading G1N An electrical device for measuring flow velocity of a fluid includes a transistor (2) located in the path of the fluid, a silicon diode (6) connected in parallel with the transistor and disposed to sense the ambient temperature of the fluid whereby the voltage at output terminal (18) connected to the transistor collector represents the difference between the forward voltage drop across the base-emitter junction of the transistor and the voltage drop across the diode, which preferably has a temperature coefficient the same as that of the transistor baseemitter voltage, whereby the output voltage is independent of the ambient temperature and is indicative of fluid-flow velocity. In an alternative embodiment Fig. 2 (not shown) an operational amplifier is connected between the transistor base and collector and varies the collector supply to maintain the transistor temperature a constant amount above ambient temperature. The collector to emitter voltage is then observed as the windvelocity-related variable.
Patent GB-124217-A (GB)
Title: Improvements in Locomotives.
Filed: 1919-03-11
Abstract: 124,217. Aktiebolaget Ljungstr÷ms Angturbin. March 13, 1918, [Convention date]. Railway locomotives, steam. - To reduce the quantity of water required to be carried the exhaust steam of the Drawing-apparatus &c. 5 is condensed in a condenser 10 by water of condensation led from an air-cooled condenser 3 in the steam circuit of the main engine. The water from both the air cooler 3 and the condenser 10 is passed to the boiler.
Patent GB-803255-A (GB)
Title: Improvements relating to oil sights for use on machines
IPC: G01F23/02
Filed: 1956-02-28
Abstract: 803,255. Indicating liquid levels. MOSS, H. Feb. 27, 1957 [Feb. 28, 1956], No. 6124/56. Class 123(1) An oil level sight glass fitting b for an oil system comprises a disc c of glass or other transparent material screwed into an aperture in the front of the fitting and a non-return valve a having a pointed stem e which bears on the glass thereby holding the valve off its seating against the closing pressure exerted by a spring d. If the glass is accidentally fractured or is removed for cleaning the spring causes the valve to close to prevent loss of oil from the system.