baber/WOPTO huggingface dataset:
Patent GB-1472151-A (GB)
Title: Binary frequency divider stage
IPC: H03K23/00
Filed: 1975-04-10
Abstract: 1472151 Binary frequency divider ITT INDUSTRIES Inc 10 April 1975 [13 April 1974] 14758/75 Heading H3T A binary frequency divider substantially as shown comprises an input stage T 1  and three memory cells I, II, III with cross coupled transistors in each. The behaviour of the circuit is indicated by the truth table. The circuit may be integrated using injection logic construction, the injectors (not shown) may be applied to a fixed injection potential in the forward direction, e.g. 0À5 V with respect to ground. Switching occurring on the falling edge of E when A (or A) rises to logic state 1.
Patent GB-852557-A (GB)
Title: Improvements relating to rotary valves or cocks
IPC: F16K5/20
Filed: 1958-05-08
Abstract: 852,557. Valves. RAPPOLD & CO. G.m.b.H., H. May 8, 1958, No. 14780/58. Class 135. A valve, for use particularly in conveying waste gases from furnaces, comprises a housing 1 having two coaxial inlet and outlet flanges 11a, a rotary valve member disposed in the housing, this member comprising two hollow cylinders 3, 4 of equal length with their axes at rightangles to each other, one cylinder extending through and closing the other cylinder, a sealing member 7 having a part-spherical surface on each end of each cylinder, two sealing rings 8 slidably mounted, e.g. by channel rings 9a, one on each of two pipes 10a extending into the housing from the flanges, each sealing ring being carried from a frame 10 and being connected to the housing by a flexible sealing member or diaphragm 9, and a driving mechanism for moving the supporting structures and thence the sealing rings 8 towards or away from the valve member. The driving mechanism comprises an electric motor 15 which rotates a number of spindles 14 through a chain drive 16, 17, these spindles carrying movable nuts 13 which move the frames 10 through doublearmed levers 11, 12. A second electric motor 21 rotates the valve member between its open and closed positions. Both motors may be controlled together so that the movements of the sealing rings and of the valve member occur in the correct sequence. Excess pressure in the body space enclosed by the flexible diaphragms is relieved through one or more relief valves 19a or through one or more explosion valves 20.
Patent GB-944398-A (GB)
Title: Improvements relating to the excitation of alternators
Inventor: STEVENS SYDNEY ARTHUR
IPC: H02P9/38
Filed: 1959-05-01
Abstract: 944,398. Alternator excitation. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. April 28, 1960 [May 1, 1959], No. 14913/59. Heading H2A. A polyphase alternator static excitation arrangement includes for each alternator output phase a parallel arrangement of an equalimpedance inductance L1 &c. and C1 &c., rectifier means U1 &c., and current transformer means T21 &c. for deriving from the alternator phases excitation current components which are proportional to the load current. Two further components which are indicative of the load current may be provided by further current transformers T31 &c. and T41 &c.
Patent GB-1187155-A (GB)
Title: Production of N,N<1>-Disubstituted Bipyridylium Salts.
Inventor: CAIRNS JOHN FRANCIS
IPC: C07D213/22
Filed: 1968-03-28
Abstract: 1,187,155. N,N<SP>1</SP>-Disubstituted bipyridylium salts. IMPERIAL CHEMICAL INDUSTRIES Ltd. 26 Feb., 1969 [28 March, 1968], No. 14961/68. Addition to 1,077,366. Heading C2C. 1,1<SP>1</SP> - Disubstituted - 4,4<SP>1 </SP>- bipyridylium halides are prepared by interacting 1,1<SP>1</SP>-disubstituted - 1,1<SP>1</SP>,4,4<SP>1</SP> - tetrahydro - 4,4<SP>1</SP> - bipyridyls with a triarylmethyl halide or with a phalonitrobenzene. The triarylmethyl halides and p-halonitrobenzenes used do not include triarylmethyl fluorides and p-fluoronitrobenzenes. The p-halonitrobenzenes may have halogen atoms, alkyl groups or additional nitro groups as substituents on the benzene nucleus. The bi-pyridyls used as starting materials may carry alkyl or carbamyl alkyl substituents on the nitrogen atoms. Preferably the reaction is carried out in an inert solvent. Examples are given of the preparation of 1,1<SP>1</SP>-dimethyl-4,4<SP>1</SP>- bipyridylium dichloride.
Patent GB-1070227-A (GB)
Title: Production of benzoic acid
IPC: C07C51/265
Filed: 1965-04-08
Abstract: Benzoic acid is prepared by oxidizing a liquid monoalkylated benzene with oxygen or an oxygen-containing gas in the presence of a polyvalent heavy metal catalyst and using benzoic acid as the sole initiator for the reaction, the benzoic acid being present initially in an amount not more than 60% by weight based on the total weight of the reaction mixture.  Preferably the benzoic acid is present initially in an amount of 0.1-10%.  The preferred catalysts are cobalt salts of organic acids, e.g. the acetate, benzoate or naphthenate or mixtures of these. Suitable monoalkylated benzenes are, for example, toluene, ethylbenzene, propyl benzene, and t-butylbenzene.  Preferred temperature and pressure ranges for carrying out the reaction are 70-300 DEG  C. and 1.05-10.5 kg./cm.2 gauge.  Suitable oxygen-containing gases are air, ozone, or oxygen-enriched air.
Patent GB-769662-A (GB)
Title: Improvements relating to electrically insulated conductors
IPC: H02K3/32
Filed: 1955-05-24
Abstract: 769,662. Insulation for dynamo-electric machines. GENERAL ELECTRIC CO. May 24, 1955 [June 1, 1954], No. 14979/55. Drawings to Specification. Class 35. A slot coil, comprising several separately insulated conductors or a single conductor, is covered with void-free insulation by wrapping with a high-tensile insulating film which shrinks on heating, thus driving out air pockets, this film being protected by a fabric wrapping impregnated with varnish, this fabric also contracting on heating. The film may be polymethylene glycol terephthalate while the fabric may be of the same material or a polyacrylonitrile resin. Methods of producing these resins and suitable analogues are mentioned. The film is preferably oriented in the transverse and longitudinal directions.
Patent GB-529516-A (GB)
Title: Improvements in fuel supply systems for aircraft
IPC: F04B49/025
Filed: 1939-05-20
Abstract: 529,516. Controlling fuel supply pumps on aircraft. BLACKBURN AIRCRAFT, Ltd., JOHNSON, J. B. E., and TOPLIS, J. G. May 20, 1939, No. 15052. [Class 102 (i)] In a fuel supply system for aircraft in which fuel is fed from a remotely located tank to an engine by means of an electrically driven pump, a metal or cork float 12 in the tank 10 operates through bevel wheels 13, 15 to move a contact arm 18 over a brass rubbing strip 19 on the inner wall of an insulated housing 23, thereby automatically controlling the supply of electric current to the pump motor, the latter being stopped as soon as the fuel in the tank falls below 'a pre-determined level.
Patent GB-393084-A (GB)
Title: Improvements in or relating to the manufacture of carbon or like paper
IPC: B41L1/00
Filed: 1932-05-27
Abstract: 393,084. Carbon papers. DEPLANCHE, A., 141 bis, Rue Vercingetorix, Paiis. May 27, 1932, No. 15091. Convention date, May 28, 1931. [Class 100 (iv).] In a process for the manufacture of carbon paper, the paper after being coated with copying material is passed between a support heated to a temperature above the melting points of the waxes contained in the material and a scraper, the pressure of which on the paper against the support is sufficient to cause the carbon to penetrate the paper while removing the excess of waxy materials, so that the paper issues dry and ready for immediate use. A paper web 4 is coated by a roller 11 partially immersed in ink contained in a reservoir 12, and a scraper 21 co-operates with a roller 10 to press the ink into the paper and at the same time to remove any excess. The roller 10, the roller 11, and the reservoir 12 are heated. The roller 11 is adjustably mounted in pivoting arms and is provided with cutaway parts at the centre and ends so as to leave uncoated central and marginal strips on the webs. The scraper 21, which may also be heated, is spring-pressed against the roller 10, the pressure being adjustable by means of a nut which engages a screw-threaded bolt attached to the end of the spring ; the blade is mounted in a slotted support and held in position therein by screws. Three rolls of paper may be used, a suitable unit for printing any required letterpress &c. being provided for each ; two of the webs are then coated on the back as described above, with the exception of the side margins and a central strip. The webs are fed forward by rollers 26, 27, the roller 27 being cut away so as to contact only with the central and marginal non-coated parts of the web, and the three webs are then associated and joined by passing between knurling- rollers, which unite the uncoated central parts of the webs. A line of perforations is provided on each side of the knurled junction and the webs are passed between rotary cutters which sever the webs centrally through the knurled portion and also trim the edges, and are finally cut by transverse cutters into forms as shown in Fig. 9, where 2b, 3b, 4b represent the printed sheets, the first two of which are coated on the back with copying material, united at their edges by knurling 41, and each having a line of perforations 42.
Patent GB-218811-A (GB)
Title: Improvements in connection with steam generators for drying and purifying the steam
IPC: F22B37/28
Filed: 1923-06-09
Abstract: 218,811. Hannan, J. H., English, W. E., Hannan, J. R., and Mills, C. H. June 9,1923. Separators.-Steam passes downwards through tubes D, Figs. 1, 2 and 4, projecting through openings a<3> in the top of a chamber C having inclined surfaces which intercept water and impurities and direct them to a bottom outlet, the cleansed steam flowing upwards through the spaces between the tubes and the edges of the openings a<3> to an outlet a. Two separators A, Figs. 1 and 2, in the steam space of a boiler have a common outlet opening into the boiler steam outlet b. The casings around the tubes are formed with vertical rims a<2> to ensure that steam is drawn from the top of the boiler. The tubes are contracted at their lower ends. Separated water and impurities collect in receptacles c<2>. In a modification, the separator is made up of two, preferably circular, castings which are bolted together, the top casting carrying the tubes and the bottom casting the inclined baffling surfaces. A separator, fitted on the steam pipe outside a boiler consists of a casing A, Fig. 4, formed with inlet and outlet openings b, b<2> and containing a cast tubular passage A<3> having flanges carrying the tubes D. In a modification, a stop valve is fitted at the top of the tubular inlet passage, which is formed in one with the casing.
Patent GB-236038-A (GB)
Title: Improvements in internal combustion engine starting mechanisms
IPC: F02N13/00
Filed: 1924-06-25
Abstract: 236,038. Harris, R. June 25, 1924. Starting.-A device for starting an engine by means of an explosive cartridge 5 comprises a cartridge holder 1 secured to the engine cylinder 3 and carrying a pivoted breech member 7, a pivoted hammer 11 for striking a firing pin 13 in the breech member, and a sliding trigger 21 for releasing the hammer. A valve 24, for putting the device into communication with the cylinder 3, has a pin-and-slot connection with the trigger 21, so that the hammer 11 'is pulled and released on opening the valve, which is then closed by a tension spring in a telescopic casing. The holder 1 may be attached to the cylinder by means of an adapter 2 fitting a threaded aperture 2<a> To indicate the position of the engine piston, a finger 38 on the cam-shaft 36 is opposite to a fixed finger 39 when the engine piston is in a position suitable 'for starting.
Patent GB-874720-A (GB)
Title: Improvements in or relating to the treatment of leather or plastic articles
Inventor: TURNER HENRY COBDEN
IPC: B24C1/00
Filed: 1959-05-05
Abstract: 874,720. Blasting. TURNER, H. C. May 2, 1960 [May 5, 1959; July 22, 1959], Nos. 15327/59 and 25107/59. Class 60. A method of treating leather or plastic articles, such as shoes, wearing apparel, handbags and cases, comprises subjecting the surface to be treated to a stream of air containing particles of a hard organic and/or inorganic material other than sand. The leather or plastic material is cleaned by the method without affecting its nature, suede or like materials retaining their nap. Leather is decolourised by the method without closing the pores so that it can be re-dyed. Suitable organic materials include oat husks and cocoanut shell. Suitable inorganic materials include metal such as crushed iron shot, aluminium oxide, carborundum, corundum, glass beads or granite chips. A blasting gun is used, the diameter of the nozzle orifice being between 0À0075 inch and 0À50 inch. The pressure of the particle-laden air stream issuing from the nozzle tonges from ¢ lb. p.s.i. to 300 lb. p.s.i. The particles are from 0À002 inch to 0À060 inch diameter. The treatment may be in two stages, cleaning being followed by finishing. Metallic shot, e.g. steel, with a rounded finish may be used, and may be mixed with aluminium shot to increase the thermal conductivity so minimising burning of the treated surface.
Patent GB-1425898-A (GB)
Title: traffic analysis device for monitoring the use of equipment
IPC: H04M3/36
Filed: 1973-03-30
Abstract: 1425898 Automatic exchange systems COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 30 March 1973 [31 March 1972] 15340/73 Heading H4K A statistical metering arrangement is associated with a plurality of elements, e.g. registers, so as to give an indication of the number of times each element is used as well as giving the total number summed over all elements. In an extension of the arrangement auxiliary equipment gives an indication of the total duration of use of each element. The arrangement, shown schematically in Fig. 1 and in detail in Figs. 2-8 (not shown) comprises a plurality of memory units M1-Mn each associated with a respective element O1-On. Closure of a contact P01-P0n in a respective element O1-On causes a mark to extend to the respective memory unit to set a bi-stable device which remains set irrespective of the contacts P01-P0n until it is pulsed by a scanner in a main equipment EC, the pulse from the scanner causing the resetting of the bi-stable device and the incrementing of two counters, one individual to the corresponding element O1-On, and the other giving the total count for all elements. The bi-stable device cannot be set again until the mark from the element has been removed. The scanner (Fig. 5, not shown) for use in scanning 16 elements, includes a binary-to-decimal counter comprising four bi-stable devices the outputs of which are coupled via arrangements of diodes to the memory units M1-Mn so as to cause them to be scanned in sequence. A 10 kHz generator GR is used to drive the scanner at 5 kHz. The scanner drive is blocked when a set memory unit is scanned and is not enabled again until the count has been registered. An auxiliary equipment EA given in more detail in Fig. 4 (not shown) is used to measure the total duration of usage of each of the elements. It comprises a cam pulse generator which is coupled to a number of counters. The extension of a mark from an element over a lead fa1-fan causes the corresponding counter to be activated and to count for as long as the mark remains. The equipment EA includes a selector so that a different cam generator frequency can be chosen according to whether the elements O1-On are electromechanical or electronic. Figs. 6-8 (not shown) illustrates various transistor circuits used in the arrangement.
Patent GB-1429196-A (GB)
Title: Electrical measurement circuit
IPC: D06P3/79
Filed: 1973-03-30
Abstract: 1429196 Pulse frequency modulation; transistor relaxation oscillators; analogue-to-digital conversion B M GORDON [trading as GORDON ENG CO] 30 March 1973 [2 Jan 1973] 15506/73 Headings H4L H3H and H3T A measuring circuit providing a digital representation of a characteristic e 1  of an input signal incorporates a relaxation oscillator 14 in which a capacitor 16 is charged by a current i 1  related to e 1 , to provide a first signal, at the emitter of transistor 22, changing from a first value to a second in a time depending on e 1 . When the second value is reached, transistor 22 switches on, causing a switching signal to appear at the emitter of transistor 24. This signal resets the circuit by switching on transistor 20 to discharge capacitor 16. When sufficiently discharged, transistor 22 turns off and the cycle starts again. Thus pulses of frequency related to e 1  are delivered to the output transformer 29. Furthermore, a timing signal generator 48 (Fig. 2) provides gating pulses which are coupled to the oscillator via the transformer to synchronize the oscillator. The combined oscillator and gating pulses at the transformer output are applied to a counter 50 which delivers the required digital representation. The transistor combination 22, 24 enables very rapid switching to occur as the current in the collector circuit of 22 is driven at switch on into the base of 24, and that in the collector of 24 is driven into the base of 22. The digital output from the counter 50 may control incandescent bar displays (Fig. 4, not shown). The circuit for the timing signal generator 48 incorporates a capacitor 158 (Fig. 5) which changes from a supply V to a level such that comparator 276 delivers an output which switches flip-flop 280. This in turn switches on output stage 282 to a low voltage output and resets the capacitor 158. The capacitor 162 then discharges through resistor 170 until comparator 278 is actuated and the flip-flop reset, sending the output high and enabling capacitors 158 and 162 to recharge.
Patent GB-235880-A (GB)
Title: An improved method for the interior protection of gasometers and the like against rust and corrosion
IPC: F17B1/00
Filed: 1925-06-16
Abstract: 235,880. Lechler, P. [Firm of]. June 20, 1924, [Convention date]. Incrustation and corrosion, preventing. - The interior surface of a gas-holder is sprayed preferably at a height slightdy above the level of the sealing water with a jet of oil under great pressure in order to prevent it from rusting or corroding. The oil forms a layer on the top of the well water concentric with the holder and as the holder descends the interior surface becomes coated with a protective layer.
Patent GB-389535-A (GB)
Title: Improved heat-insulated storage chambers particularly for preserving foodstuffs
IPC: F25D17/04
Filed: 1931-12-19
Abstract: 389,535. Refrigerators. BOWMAN, J. A. H., 117, Casilla, Vina del Mar, Chile. Dec. 19, 1931, No. 15599. [Class 29.] A container for storing food &c. comprising a jacketed storage chamber and means for exhausting air from the chamber and the jacket is provided with means for admitting air to the jacket without breaking the vacuum in the chamber. In an arrangement in which a storage box 2 is enclosed in a lined box 5, air exhaust and admission connections 17, 22 respectively and thermometers 73, 74 are provided on each of the boxes. The outer box and its lining may be made of pressed corkboard, artificial resin, porcelain, reinforced glass, celluloid, or aluminium and may be lined internally with waterproof paper or coated both internally and externally with waterproof or heatinsulating paint. Fig. 9 shows a cabinet, comprising a sheet copper storage compartment 33 enclosed in a casing 36 having inner and outer walls the space between which is packed with asbestos &c. The storage compartment and the space 35 around it are connected through valved-pipes 42, 43 to a common exhaust pump 45 driven by an electric motor the current to which is controlled by thermal switches 54 in the compartment 33 and the space 35. A two-way valve 49 having a connection 50 to the atmosphere controls the admission of air to the compartment or the space 35. Ice may be produced in a vessel 60 having a connection 61 to the pump 45.
Patent GB-995206-A (GB)
Title: Improvements in or relating to automatic strapping machines
Inventor: SAWYER LEONARD
IPC: B65B13/28
Filed: 1963-04-19
Abstract: 995,206. Twisting wires together. GORDIAN STRAPPING Ltd. April 8, 1964 [April 19, 1963], No. 15599/63. Heading B3E. [Also in Division B8] A strapping machine having a twister pinion with a slot therein into which the strapping wire is inserted and by rotation of which the overlapping ends of the wire are twisted together to secure the wire about a package is characterized in that while the wire is being loaded on to the machine the slot in the twister pinion is closed so as to form a closed channel within the pinion for the passage of the wire. Strapping wire 1 is fed by roller means 3 through an enclosed channel 9 to the twisting and cutting mechanism 10 where it passes through a slot in a twister pinion 11 closed by a tongue 17, Fig. 3, hinged to a cover-plate 23. The wire 1 passes thence around a grooved track 12 encircling a package placed in the machine, then through a straight channel 13, over a gripper 14 and through the slot in the twister 11. A stop switch 15 disengages a magnetic clutch 7 in the feed means 3. The tongue 17 is then withdrawn from the slot in the pinion 11, the gripper 14 is closed and fingers 18 are moved to hold the wire in the pinion slot. The feed means 3 is then driven in the reverse direction through a clutch 8 to pull the wire from the track 12 on to the package and a tensioning gripper 19 closed on the wire. The twisting and cutting means 10 is then operated to twist the overlapped wire, cut it from its supply and cut off the surplus end. As the package is removed a switch 20 is operated and reloading commences, the tongue 17 being moved into the twister slot and the clutch 7 energized to feed the wire. The various parts are operated by pneumatic piston and cylinder means, Fig. 4 (not shown). Alternatively, the slot in the twister pinion 11 may be closed by a cover member moved to bridge the end of the slot, or the tongue may be moved into the slot in an axial direction. Again, the twister pinion may be rotated from a position in which the slot is horizontal to a position where the end of the slot is covered by a cover member before passage of the wire through the pinion.
Patent GB-957360-A (GB)
Title: Improvements in and relating to suit cases, luggage grips and the like
IPC: A45C13/28
Filed: 1962-04-24
Abstract: 957,360. Suitcase handles. A. D. FARQUHAR. April 24, 1962, No. 15622/62. Heading A4G. [Also in Division G1] A carrying handle 4 pivotally coupled at each end to a piece of luggage 3 incorporates weighing means, such as a spring balance, which is brought into operation by unhitching one end of the handle and holding the luggage aloft by the handle. As shown, a graduated spigot 7 connected to the luggage is biased into a sleeve 8 in the handle by a spring 9.