baber/WOPTO huggingface dataset:
Patent GB-463233-A (GB)
Title: Improvements in or relating to radio and other high frequency amplifiers and oscillators
IPC: H03G5/26
Filed: 1936-07-29
Abstract: 463,233. Valve amplifying and generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 29, 1936, No. 21014. Convention date, Oct. 7, 1935. [Class 40 (v)] In a high-frequency amplifier or oscillator a band-pass input circuit is provided and energy is fed back from the output of the amplifier to the band-pass input. The band-pass circuit is provided with a series resistance in the second oscillatory circuit from which the amplifier or oscillator is fed in such a manner that a 90‹ phase shift is produced in the feed-back circuit. Fig. 1 shows a feed-back circuit C0 L0 with the output from the filter taken across resistance R2. The valve V1 may be utilized only to give feed-back, Fig. 3 (not shown), or may also be utilized as an amplifier. Fig. 4 shows an arrangement in which the output is rectified and amplified to give automatic volume and selectivity control by variation of the bias of the valve V1. When a separate reaction valve is provided the bias of the grid may be controlled to adjust the selectivity, Fig. 5 (not shown). Fig. 7 shows an arrangement in which the volume control resistance R4 and the selectivity control resistance R3 are conjointly operated. Fig. 8 shows an automatic selectivity control of the bias of the reacting amplifier V1 in which as selectivity is increased the amplification of the valve V2 is decreased by bias control. Feed-back may be applied over a number of stages, Fig. 9, in which the phase changes between the stages is as shown. In a modification, Fig. 10 (not shown), each valve input is across a resistance so that in the limit all circuits are brought to zero resistance simultaneously.
Patent GB-1415195-A (GB)
Title: Polymerisation process
Inventor: EVANS DENNIS ERNEST MACKLEY
IPC: C08F2/00
Filed: 1972-05-05
Abstract: 1415195 Emulsion polymerization IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1973 [5 May 1972] 21085/72 Heading C3P In an emulsion polymerization process emulsifier is fed in at a rate determined by the rate of evolution of heat such that the total amount of emulsifier fed up to any one time corresponds positively to the total heat evolved. An example describes the polymerization of vinyl chloride.
Patent GB-221335-A (GB)
Title: Improvements in safety non-slipping horse shoes
IPC: A01L1/02
Filed: 1923-08-21
Abstract: 221,335. Giles, J., and Welland, H. B. Aug. 21, 1923. Integral calks.-A shoe is formed with teeth a<4> normal to the outer contour of the shoe and with bearing surfaces which slope inwardly relative to the hooffitting surface. A groove a<6> may be m a d e around the shoe of the same depth as the spaces between the teeth, and preferably broadest at the bottom. The shoe is made from a straight bar of the required cross-section by forming the teeth and the groove, cutting off the required length and bending to shape. A toe-clip is made by knocking down the outer portion of a tocth at the required point, and the free ends are formed by knocking down the end teeth and rourding off. The shoe may, however, be stamped or cast; in the former case the sides of the groove a<6> would diverge and would require hammering over to form a substantially dovetailed groove. The side walls of the teeth may be concave or convex, the bases of the spaces between the teeth may be curved, while the bearing faces of the teeth may be longitudinally grooved.
Patent GB-1247965-A (GB)
Title: Method of storing liquids underground
IPC: B65G5/00
Filed: 1969-04-24
Abstract: 1,247,965. Raising liquids. UNITED STATES ATOMIC ENERGY COMMISSION. April 24, 1969 [May 21, 1968], No.21128/69. Heading F1R. [Also in Divisions G6, E1] Liquid e.g. aqueous radio-active waste, is stored in an underground cavern by firstly filling the cavern with a bulk liquid e.g. hydrocarbon liquid, immiscible with the liquid to be stored, such that the hydrostatic head of bulk liquid and possible additional pressure imposed via line 21 on the bulk liquid surface prevents the leakage of underground water into the cavern, and subsequently transferring into the cavern a volume of liquid to be stored at the same time removing the displaced equal volume of bulk liquid, via line 17. The density of the bulk liquid may be greater than that of the liquid to be stored Fig. 2 (not shown). To obviate the need for a bulk liquid storage container, a plurality of caverns may be employed Fig. 3 (not shown) and the bulk liquid moved from a first to a second of the caverns as the first cavern is filled with the liquid to be stored.
Patent GB-952110-A (GB)
Title: Improvements in or relating to an industrial furnace combustion system and method
IPC: C21D9/70
Filed: 1961-06-13
Abstract: <PICT:0952110/C3/1> A soaking pit furnace comprises a chamber having a plurality of burners through one of which, at least, air for combustion passes at a velocity of 200 feet per second or more and a flue system connected via a port into the chamber.  As shown, each chamber A, B has three burners 9, 10, 11 in line in an end wall 4; fluid fuel is controllably supplied to each set of burners from a supply line 15 via a pipe 14, manifolds 13 and feed pipes 12 containing valves 17.  The combustion products leave the chamber through an outgo port 18, then pass through a flue 19 with a damper 21 and two sets 22 of metallic recuperators to the stack 20.  Air is drawn in, with a blower 23, through the recuperators and controllably fed through pipes 31 to the burners.
Patent GB-315369-A (GB)
Title: Improvements in and relating to gaseous conduction electric lamps
IPC: H01J61/95
Filed: 1929-07-12
Abstract: 315,369. British Thomson-Houston Co., Ltd., (Assignees of Moore, D. M.). July 12, 1928, [Convention date]. Vacuum tubes.-A gaseous discharge lamp with a negative glow discharge which is responsive without appreciable time lag to voltages of the order of radio frequency, and for use in television apparatus &c., comprises a tubular anode into which the cathode is tightly fitted and separated therefrom by only a thin insulating layer. In the construction shown in Fig. 1, the active face of the cathode 14 is flush with the end of the anode 13, a thin insulating layer 16 confining the glow to the exposed surface of the cathode. Depressions of various shapes may be made in the face of the cathode to confine the glow to the centre thereof. In the construction shown in Fig. 7, a deep conical depression 38 is formed and the anode is extended over the face of the cathode and provided with an aperture 40 registering with the mouth of the depression 38. The depression may be of inverted conical form as shown at 34, Fig. 5, the glow being confined to the interior conical surface. In the construction shown in Fig. 3, the depression is in the form of a narrow bore 23 giving an intense spot of light. The leading-in wires may be connected to an ordinary lamp base or may be led in from opposite sides 'of the bulbs as shown at 31, Fig. 5. The electrodes may be steadied by fitting closely in a tubular envelope as shown, or if the support wires are sufficiently robust the electrodes may be mounted in a spherical or like bulb. The gas filling may be of argon, or of pure or commercial neon, the latter containing about 20 per cent of helium. A neon filling may contain about 0.5 per cent of argon. The gas pressure is about 30 mm. The anode may be of aluminium, magnesium, iron, copper, or nickel, and the cathode of nickel, aluminium, or magnesium.
Patent GB-1159379-A (GB)
Title: Liquid-Moderated, Liquid-Cooled Nuclear Reactor
Inventor: THOME PAUL
IPC: G21C13/093
Filed: 1968-05-07
Abstract: 1,159,379. Reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. 7 May, 1968 [18 May, 1967], No. 21629/68. Heading G6C. In a heavy water moderated and cooled nuclear reactor, the core is mounted within a metal tank having a flexible wall. The space surrounding the metal tank is filled with light water and the tank is not subjected to a pressure, as pressure equalization is effected by the flexible wall and the adjustment of light water pressure. The fuel channels 16, mounted in a heavy water moderator, are cooled by heavy water which vaporizes in chamber 20, which with lower chamber 13 forms the metal tank 12. The prestressed concrete vessel 1 surrounds 12 and the intermediate space 14 is filled with light water. Tank 12 is supported on levers 36 and pillars 34. The upper end of each lever is rigidly fixed to chamber 20, above the flexible part 22, while the lower ends of all the levers except one rest on knuckle bearings 38 supported on 34. Pressure equalization vessels 46, having flexible diaphragms 48, are connected to the space 14 and chamber 13. An excessive pressure rise in 20 opens nozzles 52 which discharge heavy water vapour to the condensing tank 54. The frangible disc 64 also releases steam to the pool 62.
Patent GB-644849-A (GB)
Title: An improved sliding pane window
IPC: E06B3/44
Filed: 1948-08-17
Abstract: 644,849. Windows. PARENT HOLDINGS PTY., Ltd. Aug. 17, 1948, No. 21688. Convention date, Jan. 29. [Class 20(iii)] A sliding window comprises a stationary base member, channelled side members, each formed by two slidably interconnected elements 12, 13 and a cross top member. with the panes 18, 19 slidable in the channels. Spring-pressed friction elements 24 carried by the side members engage the panes which are thus held in any position without counterbalancing weights or the like.
Patent GB-1221232-A (GB)
Title: Shampoo compositions
IPC: A61K8/36
Filed: 1968-05-08
Abstract: 1,221,232. Shampoos. COLGATE-PALMOLIVE CO. 8 May, 1968 [12 May, 1967], No. 21723/68. Heading C5D. A shampoo composition comprises in an aqueous medium a water-soluble non-soap organic synthetic detergent having a long chain containing at least 8 carbon atoms in its molecular structure and a liquid saturated branched-chain higher (C 12 -C 24 ) fatty acid and/or its salt, the ratio of the synthetic detergent to the branched-chain fatty acid material being from 80 : 1 to 1 : 1 by weight and being such as to render the composition effective simultaneously to clean and condition human hair during use as a foaming shampoo. Examples of suitable detergents are organic sulphates, sulphonates, fatty acid amides of long-chain amino acid compounds, ampholytic detergents, and nonionics such as ethylene oxide condensates and fatty acid alkanolamides. The branched-chain higher fatty acid may be, for example, isostearic acid or isomers of lauric, myristic or palmitic acids with mainly methyl or ethyl branching at about the middle of the chain. The fatty acid may be partially neutralized to give a water-soluble soap and fatty acid mixture. A suitable composition contains 10-40% of the detergent and 0À1 to 10%, preferably 0À5-5% of isostearic acid having a titre of 10‹ C. maximum, the pH of the composition being 5 to 8À5. 0À5 to 10% of an opacifying agent, such as lanolin or ethylene glycol mono- or di-stearate, may be included in the composition. It is preferred to add an alkylolamide of a fatty acid, such as diethanolamides, monoethanolamides and isopropanolamides of fatty acids having 8-18 carbon atoms, in minor amounts (1 to 10%) to the shampoo. Other optional additives are perfume, colour, borax, alkali metal phosphates, citric acid, lanolin or ethoxylated lanolin, E.D.T.A. salts, fatty alcohols, other fatty acids and their esters, glycerine, ethanol, propylene glycol, sodium benzoate, carboxymethyl cellulose, bactericides, and antiseptics.
Patent GB-1341290-A (GB)
Title: Distributing devices for fluid under pressure
IPC: F15B13/04
Filed: 1971-04-19
Abstract: 1341290 Fluid-pressure servomotor systems SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 19 April 1971 [25 Feb 1970] 21890/71 Heading G3P Two control valves 4, 5 for a servomotor control system are normally operated without relative movement by a rod 7 and are connected by a link 6 which turns about a central pivot to allow the system to be controlled by a single valve when resistance to movement of one of the valves increases abnormally. Rotation of the link 6 operates an electrical detector 11 and compresses one of a pair of springs 10 which serves to return the link to its original position when normal operation of the valves is resumed. The valves are arranged in series between a supply 3 and a rotary motor 30. In a second embodiment, the valves are carried by a reciprocating cylinder co-operating with a fixed piston. In Fig. 5, two motors 30a, 30b are each controlled by a pair of valves and operate an output member, such as the tailplane of an aircraft, through epicyclic gears 40 and a screw and nut 43. Further epicyclic gears 46a, 46b form a feedback connection to the pilot's controls 48a, 48b. (For Figures see next page)
Patent GB-862043-A (GB)
Title: Pressure gauge
IPC: G01L21/14
Filed: 1959-06-26
Abstract: 862,043. Pressure gauges. NEW YORK AIR BRAKE CO. June 26, 1959 [July 24, 1958], No. 21969/59. Class 40 (1). In a pressure gauge of the type in which the temperature of an electrically heated filament, as measured by a thermocouple, is used as a measure of the pressure of the gas in which the filament is mounted, the filament has a fixed resistor in series with it of a value such that, with a standard potential applied to the combination, a standard response is obtained from the thermocouple, thus making the filament units interchangeable. Fig. 1 shows the preferred circuit in which two gauge units 14 and 15 are shown. Compensating resistors 22 and 23 are connected in series with filaments 17 and 18 respectively and the temperatures of the filaments are measured by thermocouples 19 and 21. Power to the filaments is supplied via a barretter 12, variable resistor 13 being included for zero adjustment after changes of filament units. Specification 846,062 is referred to.
Patent GB-203344-A (GB)
IPC: H01R13/60
Filed: 1923-08-31
Abstract: 203,344. Engel (nÚe Bormann), A. Aug. 31, 1922, [Convention date]. Plug couplings and connectors; suspending and supporting conductors.-A connecting plug S is carried by a wall-socket D when not in circuit by providing a carrier pin or pins t, additional to the contact pins l, fixed upon the plug. The carrier pins are preferably mounted so as to project in a direction different from the contact pins and are made as flat as possible so that they may be clamped under the latter. They may be integral with an insulating plate carrying the contact pins and made of insulating material or metal covered with an insulating sheath. The fit of the carrier pins in the socket contacts may be ensured by various means; the rubber sheet of which they are made may have a hard middle layer and soft outer layers, the pins may be of channel or cross-shaped section or a resilient metal member may be sprung on the pin. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a carrier pin for securing to twisted flexible lead or lead-covered twin cable and adapted to be inserted in a contact socket. As shown in Fig. 9<a> (Cancelled), it has a conical shape with a point at one end and two grooves of different diameters at the other. The groove r engages between the wires of twisted flexible lead. The point may be forced through the sheathing of lead-covered turn cable between the cores which then engage the groove r<1>. A pin adapted for attachment to any kind of lead is shown in Fig. 10 (Cancelled); the lead is received in the groove z and secured by a screw cap k. This subject-matter does not appear in the Specification as accepted.
Patent GB-1166782-A (GB)
Title: Process and device for the manufacture of Wire Structures
Inventor: LETTNER FERENC
IPC: B21F45/00
Filed: 1968-05-09
Abstract: 1,166,782. Making electrodes and filters. MEDICOR MUVEK. 9 May, 1968, No. 22114/68. Heading B3A. [Also in Division H1] A button accumulator electrode or a filter or a catalyst insert is made from a continuous length of silver wire 11 fed into an enclosed chamber by driven corrugating rollers 3 and compacted in a tangle by plungers 1, 2. A toothed rotor 9 is moved into the chamber after the tangle has been severed and the rotor winds the tangle around it. The rotor is retracted and the plunger 2 compresses the tangle against a side wall 7 and the plunger 1 then forces it into a pocket from which it is ejected by a reciprocating slide 8. The prior art description refers to winding corrugated silver wire on to a mandrel and compressing it after removal of the mandrel.
Patent GB-804572-A (GB)
Title: Electron tube and socket therefor
IPC: H01R33/74
Filed: 1955-08-02
Abstract: 804,572. Thermionic valves. EITEL-Mc- CULLOUGH, Inc. Aug. 2, 1955 [March 8, 1955], No. 22147/55. Class 39(1). Electric discharge tube comprises a generally cylindrical envelope including a stack of metallized ceramic rings 2, 3, 4, 6, 7 with flat metal rings 8, 9, 11, 12 sandwiched therebetween and metallic bonds uniting the ceramic and metal rings, a copper anode 13 forming part of the envelope, cathode 21 and grids 22, 23 coaxial with the envelope, sheet metal tubular electrode supports 28, 26, 24 integral with the metal rings, and a plurality of outwardly extending contact tabs 36 on each metal ring to provide electrode terminals. The ceramic rings are preferably of alumina, and are metallized by a molybdenum-manganese powder sintering process. The metal rings are preferably of copper about 0À020 inch thick. The ceramic and metal rings are brazed together with high-temperature brazing alloys such as copper-gold. The heater 29 for the cathode 21 is connected at one end to a rod 32 connected to a conical portion 33 integral with the metal ring 8 and is connected at the other end to a rod 31 coaxial with the envelope and brazed to a conically shaped metal bottom wall 34 of the envelope brazed to the metallized end of the ceramic ring 2. The copper anode 13 carries the exhaust tubulation 18 and a finned cooler 19 and is supported on the ceramic ring 7 and secured by the sealing flanges 14 and 16 brazed together at 17, the flange 14 being brazed to the anode and the flange 16 to the metallized ceramic ring 7. A socket member 38 has a recess for receiving the end portion of the discharge tube and a series of contacts 37 on metal rings 41 fixed to the socket members, projecting into the recess and spaced in parallel planes for engagement by the contact tabs 36 under the action of the spring-pressed pin 47 which also provides a contact for the metallic base 34 of the tube connected to the heater support rod 31. The socket contacts 37 are provided with integral terminal lugs 42. The end portion 2 of the tube has a guide pin 43 engageable with a vertical indexing groove 44 in the socket recess, a horizontal portion 46 of the groove 44 allowing the tube to be rotated for engagement of the contacts 36 and 37. The socket member 38 forms the subject matter of Divisional Specification 804,573 [Group XXXVI].
Patent GB-774586-A (GB)
Title: Improvements in or relating to treatment of silica
IPC: C01B33/193
Filed: 1954-07-29
Abstract: Finely divided hydrated silica having an average ultimate particle size of 0.015-0.1 micron is purified by treating an aqueous slurry thereof with an anion or cation exchage resin of larger particle size than the silica and then separating the silica from the resin by filtration, decantation or centrifugation.  Incomplete separation may be effected, the remaining silica being washed from the resin. Filtration may be effected by passing the slurry through a sieve of 10-100 mesh (Tyler) and preventing accumulation of a layer of resin on the sieve of more than 1 in. thick.  Partial decantation followed by centrifugation may be employed.  The silica is stabilized before treatment, e.g. as described in Specification 745,890, or by drying at a temperature of at least 100 DEG C. and then redispersing in water.  One or more pounds of ion exchanger may be employed per pound of silica in the slurry.  In order to effectively remove cations, the pH should be reduced to below 5, preferably to 2-4, by the use of a cation resin alone or together with an aqueous acid.  In the latter case an anion exchange resin may be subsequently employed to remove the anions introduced by the acid.  According to a modification a cation exchange resin, alone or together with an anion exchange resin or an anion exchange resin in conjunction with a water soluble acid, may be added to a silica filter cake so as to produce the effect disclosed in Specification 774,585, i.e. a thinning out of the cake to produce a slurry.  Specification 745,822 also is referred
Patent GB-496697-A (GB)
Title: Improvements in or relating to polarised electro-magnetic relays
IPC: H01H51/22
Filed: 1937-08-13
Abstract: 496,697. Light current relays. STANDARD TELEPHONES & CABLES, Ltd., TERRY, R. ST. G., and BOWSHER, E. A. H. Aug. 13, 1937, No. 22308. [Class 38 (v)] In a polarized relay an armature 5 is pivoted on upper and lower pointed screws 6, 7 so as to engage one or other of the polepieces of the cores of two energizing windings 3, these cores being magnetically joined at their ends remote from the armature to a magnetic plate 2 mounted on the permanent polarizing magnet 1, which carries the lower pivot screw 7. The upper screw 6 is carried on an extension of a non-magnetic plate 4 mounted between the windings and clamped on opposite sides of the plate 4 are sets of contact springs adapted to be engaged by insulating studs 17 on arms attached to upstanding arms of a plate 8 secured to the upper side of the armature. The armature carries a pin 24 and when swung over in one direction the movement is arrested at an intermediate position by the pin engaging the end of a bimetallic strip 20. This strip is provided with a heating winding in series with one of the operating coils and when current has passed through this winding for a predetermined period the strip 20 bends and moves aside from the pin 24 so that the armature is free to complete its movement. Specifications 472,431 and 496,667, [both in Group XXXVIII], are referred to.
Patent GB-190687-A (GB)
Title: An improved lamp for curative purposes
IPC: A61N5/06
Filed: 1922-08-17
Abstract: 190,687. Forbes, F. Aug. 17, 1922. Light, treating diseases with.-Consists in the combination in a lamp for concentrating the light rays from an arc on to a particular spot, more particularly in treating pyorrhoea of the gums, of a casing substantially hemispherical, the base having means for supporting the arc mechanism, a lens for directing the rays, and a tube projecting from the casing, the focal length of the lens being such that the rays are focussed near the end of the tube. The tube F is secured to the casing by a bayonet-joint G and carries an extension I, preferably silvered inside, which is held by a nut J screwing on the thread H.
Patent GB-791527-A (GB)
Title: A method for determining the surface tension and viscosity of materials
IPC: G01N25/04
Filed: 1955-08-04
Abstract: 791,527. Measuring surface tension and viscosity. NOVOTNY, A. Aug. 4, 1955, No. 22447/55. Class 106 (2). [Also in Group XL (b)] The surface tension and viscosity of molten substances, e.g. glass, are derived from the change in length of the lower end of a test rod when subjected to heat so that a drop is formed which after overcoming the surface tension drops off from the rod. The rod 6 is suspended from one end of a beam 1 with its lower end at the focus of a light beam from a source 7 which impinges on a photo-cell 8 controlling a relay 9 supplying current to a length of resistance wire 12 passing over a series of pulleys 11 and attached to the other end of the beam 1, the arrangement being such that the lower end of the rod is maintained at the light beam focus by movement of the beam 1 with expansion and contraction of the wire 12 as current is passed through it. The end of the rod 6 is heated by a torch 13 and as the drop forms the rod slowly shortens until the drop falls off when it undergoes a more marked shortening. The consequential movements of the beam 1 are recorded graphically against time at 17 and from the trace surface tension and viscosity may be determined. The temperature at the lower end of the rod may be measured by a thermocouple 15.