baber/WOPTO huggingface dataset:
Patent GB-990442-A (GB)
Title: Improvements in or relating to wideband frequency modulation systems
IPC: H04N5/92
Filed: 1963-04-23
Abstract: 990,442. Frequency modulation. AMPEX CORPORATION. April 23, 1963 [April 30, 1962], No. 16038/63. Heading H3R. Television or like wideband modulation signals to be recorded on magnetic tape are first applied to frequency modulate in opposite senses VHF oscillators 12, 13 of low difference of centre frequency, e.g. 6 mc/s. The video modulation signals therefore do not break through to the output circuit (owing to the high centre frequencies of the oscillators) and also the difference frequency 6 mc/s. of the two FM oscillations may be produced by a mixer, with an output filter dispensed with. The wider modulation may be applied to the oscillators through a self-resonant inductor 46 decoupling the two oscillator centre frequencies, to vary in opposite directions the capacity of two voltage variable capacitors 28, 43, forming part of frequency determining circuits 24, 26 and 25, 27 respectively of two similar oscillators differing by 6 mc/s. in centre frequency, the inductors 26, 27 being variable to tune the oscillators. Frequency drift due to temperature and non-linearity in modulation is compensated by taking the frequency difference in a transistor mixer 14 with emitter follower output 58. Input network 43, 42 produces pre-emphasis. Zener diodes 36, 38 stabilize the back bias of the voltage variable capacitors 28, 43.
Patent GB-1253892-A (GB)
Title: Silver dye-bleach process
Inventor: BOECKLY ERICH
IPC: G03C7/28
Filed: 1969-03-27
Abstract: 1,253,892. Silver dye-bleach process. AGFA-GEVAERT A.G. March 27, 1969 [April 4, 1968], No. 16077/69. Heading G2C. A process for the production of coloured photographic images by the silver dye-bleach process comprises exposing a photographic material which has at least one silver halide emulsion layer which contains an azo dye, - developing, bleaching the dye and bleach-fixing, in which the silver halide emulsion used has a molar ratio of silver (in the form of silver halide) to each azo bond of the bleachable azo dye of at least 12:1 and in which development is carried out with ap-phenylenediamine developer solution. which contains at least 15g. per litre of sulphite. The silver halide emulsion preferably has a silver content (as silver halide) of at least 10g. per kg of emulsion before the addition of coating additives. By this process coloured images having a fine grain and low gradation and silver halide emulsion layers of very high sensitivity are obtained.
Patent GB-795582-A (GB)
Title: Improvements in or relating to building constructions
Inventor: BUNTON SAM
IPC: E04H1/00
Filed: 1954-06-01
Abstract: 795,582. Multi-storey buildings. MULTI-CONFLATS, Ltd. May 31, 1955 [June 1, 1954], No. 16149/54. Class 20(1) A multi-storey building 10 has school premises arranged in the lower floors Figs. 2 and 3 (not shown), and domestic flats Fig. 1 above. Additional blocks 11 of storied flats and an administrative block A of 3 stories may branch off from the front and rear walls 13 and 14 of the main building 10. The entrances to the school building and to the flats 11 are segregated on opposite sides of the main building 10. The main building 10 consists of front and back walls 13 and 14 and cross walls 15 which cross walls to take the whole of the floor and roof loads. The cross walls 15 project slightly at 16 beyond the front and rear walls for this purpose. The floors are built up as in Specification 795,581 on pre-stressed concrete planks spanning between the cross walls 15. At least one course of cavity blocks extend round the perimeter of each flat or schoolroom. A structural concrete layer rests on the pre-stressed concrete planks and merges with concrete filling the cavities. Such layer has reinforcements bent out at their ends to be embedded into the cavity fillings. Fig. 4 shows a perspective of the grouped buildings in which the main block 10 has the first three floors adapted as schoolrooms &c. Fig. 3 (not shown), being the ground floor, Fig. 2 (not shown), being an upper school floor and Fig. 1 being the flats above. Added to the main block 10, Fig. 4, are a block of 4 storey flats, a 3 storey school administrative building, a hall H to serve as an assembly, dining or gymnasium room, and an entrance covered way 1 to a playground which may be used as an infants department. The flats in the main building are sub-divided for residential use. The lower schoolrooms, after providing permanent schools on the estate, can be similarly subdivided later. Wells are provided in the main building for lifts and stairs. Specification 795.580 also is referred to.
Patent GB-571004-A (GB)
Title: Device for setting up workpieces for marking out and for like purposes
IPC: B23Q3/02
Filed: 1943-10-04
Abstract: 571,004. Marking-out workpieces. BRADSHAW, H. Oct. 4, 1943, No. 16233. [Class 61 (ii)] A workpiece is set up for marking out in a device permitting universal adjustment comprising a mount for the workpiece 16 such as a C-shaped member 8 with clamp screw 14 and anvil 15, clamping means for securing it to an engineer's cube or other support 4 and a threepoint suspension means interposed between the mount and the support including a plate 13 with three round depressions 12 engaged by the ends of three screws 11 carried by another plate 9, the C-member 8 having a threaded boss 7 engaged by a bolt 1 having a head 2 with rounded end seating in a round depression in a plate 5.
Patent GB-612587-A (GB)
Title: Improvements in or relating to rheostats
IPC: H01C10/32
Filed: 1946-05-29
Abstract: 612,587. Regulating switches. BROWN, Ltd., S. G., GALE, F. W. J., and IBBOTSON, T. D. May 29, 1946, No. 16319. [Class 38 (v)] A rheostat intended for use in deaf-aids or where small size is essential, comprises a moving contact arm and contacts connected by lengths of resistance wire wound on a former, all parts being contained within the operating knob of the rheostat. The resistance wire 1 is wound on a former which is in two portions 2, 3 secured on a screw 4, and is connected to contacts 5 arranged as shown in Fig. 3. A moving arm 7 rubs over the contacts 5 and is driven by the engagement of a pin 9 on the inner surface of the knob with a hole 10 provided in the arm. A metal ring 11 makes continuous contact with the other end of the moving arm and is itself prevented from rotation by a lug 12 which engages in a slot 6 provided in the portion 2 of the former.
Patent GB-1245549-A (GB)
Title: (thienylideneamino)oxy-alkanoic acid and derivatives thereof
IPC: C07D333/28
Filed: 1970-04-07
Abstract: 1,245,549. Thienylideneamino oxy alkanoic acids and derivatives. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 7 April, 1970 [10 April, 1969], No. 16340/70. Heading C2C. Novel compounds of Formula I wherein R 1  and R 2  are H, halogen or methyl, R 3  is C 1-3  alkylene, R 4  is H, C 1-5  alkyl, an alkali metal atom, NH 4 , (C 2 H 5 ) 2 NH 2 , (C 2 H 5 ) 3 NH, (C 2 H 4 OH) 3 NH, (CH 3 ) 2 (C 2 H 4 OH)NH and (C 2 H 4 OH) 2 (C 2 H 5 )NH are prepared either by reaction of a compound of formula wherein M is a metal atom, which may be prepared in situ from the corresponding ketone and hydroxylamine, with a compound of formula where R<SP>1</SP> 4  is H or alkyl, optionally followed by salt formation; or by reaction of a compound of Formula IV with a compound of formula Pharmaceutical compositions having antiinflammatory and analgesic activity being in conventional forms for oral, rectal or parenteral administration comprise an above novel compound and a carrier therefor.
Patent GB-1065131-A (GB)
Title: The analysis of gases
IPC: H01J49/04
Filed: 1965-04-15
Abstract: 1,065,131. Gas chromatography. LKB-PRODUKTER A.B. April 15, 1965 [April 20, 1964; April 21, 1964; Sept. 24, 1964], No. 16411/65. Heading B1L. A separator is arranged between a gas chromatographic column and a mass spectrometer which by removing the lighter molecules, mainly the carrier gas, by diffusion through a permeable wall 9 increases the concentration of the sample substance in the carrier gas entering the spectrometer. Gas is fed from the chromatographic column through conduit 1 to a channel 12 formed by annual bodies 9 of porous material divided into the groups by a wall 6 and from each other by metal washers 10. Non-porous bodies 11 are placed at each end and a perforated stainless steel tube 7 surrounds the bodies. Chambers 4 and 5 in a cylindrical member 3 enclosing the bodies are connected by tubes 14 and 15 to vacuum pumps to quicken diffusion through the bodies 9. The gas stream may be expanded prior or after it is passed through the channel 12 by a nozzle. Gas flow control means 16 and 17 may be provided. The gas leaves the device through conduit 2 to the spectrometer.
Patent GB-250792-A (GB)
Title: Device for heating and cooling liquid and gaseous fluids
IPC: F23M20/00
Filed: 1925-06-26
Abstract: 250,792. Hagstedt, C. N. G. June 26, 1925. Joints for concentric pipes; junction pieces and the like.-Inner and outer concentric pipes 1, 1<a> forming a heat exchanger are joined by bent pipes 2, 10 fixed in the main structure and a gas-tight joint is obtained by screwing out a threaded ring 11. Alternatively, the joint 2 of the inner pipe 1<a> may be made integral therewith and bent into semicircular shape, Fig. 5. The inner pipe is supported on the outer by projections 8, 22<a>. And a gas-tight joint is obtained by forming the axially slotted shoulder 12 with projections 13, Fig. 15, which are forced together by a shaped strap 14 having a cotter pin 13, Fig. 16, or by a spring strap 16, Fig. 19.
Patent GB-593620-A (GB)
Title: Improvements relating to rotary pumps
IPC: F04C15/00
Filed: 1945-06-28
Abstract: 593,620. Gear-wheel pumps. PRECISION DEVELOPMENTS CO., Ltd., and OLAH, G. June 28, 1945, No. 16502. [Class 110 (ii)] The casing side-wall 6, 7, or the sides of the gears 1 themselves, are provided with shallow pockets 22 and radial slots 23 connecting the pockets with the journals 5, of the gear-shafts, to allow oil under pressure to prevent contact between the gears and the walls 6, 7. In addition, auxiliary inlet and outlet chambers 36, 37 may be provided to secure radial pressure balancing across the gears. Inlet and outlet ports 14, 15 are provided. The shallow pockets 22 may be tapered to secure a Michell-bearing effect, and each extends over an arc of between 30 and 60 degrees, and the dimensions are such as described in Specification 539,753, [Group XXXIV]. Grooves 24, which may be chamfered from the walls 6, 7 contain oil under a pressure due to leakage from a delivery port 27 to a suction port 26, the oil also lubricating the bearings. The chambers 36, 37 are connected to inlet and outlet chambers 34, 35 respectively, by passages in the casing walls. In this case, the radial slots 23 may have three choices of position, between parts 34, 37 or 37, 36, or 36, 35. Leakage-collecting grooves 16, 17 and a non- return valve 21, such as described in Specification 592,695, may be provided. Dowels 13A, 13B, as described in Specification 593,621, [Group XXV], may be used in the casing parts. The Provisional Specification says that the invention may be applied to vane-type pumps.
Patent GB-823585-A (GB)
Title: Improvements in or relating to warp beams
Inventor: FRENZEL BERTRAM
IPC: D02H13/28
Filed: 1957-05-24
Abstract: 823,585. Warp beams. TULLMASCHINENBAU KARLMARX-STADT VEB. May 24, 1957, No. 16524/57. Class 142(2) [Also in Group VIII] In a warp beam assembly comprising section beams 1 disposed end-to-end, rods 4 are moved endwise by means of a tailstock spindle 8 so that square portions 5 occupy corresponding apertures in the ends of adjacent beams; a short square rod 13 couples 'the beams to a brake drum 10. A tailstock at the other end of the assembly enables the rods to be pushed back to the positon shown, whereupon the individual beams can be removed from their bearings 2. The rods 4 may enter holes that are not in the axis of the beams, in which case the ends of the rods need not be square.
Patent GB-1465206-A (GB)
Title: Ceramic-coated structure and process for its preparation
IPC: B01J35/04
Filed: 1974-04-16
Abstract: 1465206 Fluid permeable structure E I DU PONT DE NEMOURS & CO 16 April 1974 16678/74 Heading D1P [Also in Divisions Bl and B2] A fluid-permeable self-supporting refractory support structure comprises a) an assembly of yarns arranged so that a plurality of welldefined apertures extend therethrough, the yarn comprising siliceous fibres containing 40-80% by weight of SiO 2  and at least 18% by weight Al 2 O 3  and having a softening point of 750-1300C, the yarn constituting 20-85% by weight of the structure, and b) 15-80% by weight of the structure of a ceramic coating having a melting point of 1000-2800C and a porosity of 20-70% which at least partially surrounds the yarn but does not close the apertures. The yarn assembly may be formed from woven or knitted fibres or may be a random arrangement of bulked or textured yarns. When of high density, the assembly may be apertured by needling. It may particularly comprise a number of layers of spaced-apart, parallel rows of yarn, the yarns in different layers crossing to define square- or diamond-shaped apertures and may be in the form of a tube comprising spaced helical convolutions of yarn. The fibres may particularly have a composition of 61-66% SiO 2 , 20-26% Al 2 O 3  and 9-15% MgO. The ceramic coating may be applied to the yarns before or after assembly as an aqueous dispersion or solution by immersion, roller, spraying or passage of the yarn through a die. The coating composition may comprise one or more oxides or oxide compounds (alumina, magnesia, silica, mullite, spinel) or precursors therefor (alumina hydrate, basic aluminium chloroacetate, aluminium chloride, magnesium acetate), and preferably comprises at least 40%Al 2 O 3  together with BaO, CaO, MgO, ZrO 2  or TiO 2 . Additional applications of the ceramic composition may be made after drying and heating of the initially coated product.
Patent GB-530829-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: H05B41/06
Filed: 1939-06-07
Abstract: 530,829. Discharge lamps. BRITISH THOMSONHOUSTON CO. Ltd., and SCOTT, W. J. June 7, 1939, No. 16752. [Class 39 (i)] [Also in Group XXXV] A thermal switch 3 in series with the cathode or electrodes of a discharge lamp has a resistance heater 4 of "Thyrite" or "Metrosil" (Registered Trade Marks) ; the bimetallic elements 5 of the switch (i) close at starting to allow the cathode &c. to heat and then (ii) open to obtain an inductive kick from the choke 6. The resistance 4 is of such value that the switch remains open during normal running. Specification 292,110, [Class 38 (iv)], is referred to.
Patent GB-1183604-A (GB)
Title: Improvements in or relating to Digital Position Measuring Devices
IPC: G01D5/20
Filed: 1967-04-12
Abstract: 1,183,604. Measuring position. ING. C. OLIVETTI & CO. S.p.A. 12 April, 1967 [12 April, 1967], No. 16768/67. Heading G4H. The digital position measuring device of Specification 1,120,413 for measuring the displacement of a movable member with respect to a fixed member, which includes a first counter 10 (Fig. 2) the contents of which are converted into analogue form and continuously compared with the analogue position of the movable member B to supply an error signal to control the application of counting pulses to the first counter 10, and a second counter 42, adapted to receive the pulses applied to the first counter, is modified in that display means V are connected to the second counter 42 to allow the position of the movable member to be displayed in digital form. The counter 10 measures the displacement of the member relative to two graduations on a fixed scale (i.e. it is effecting a fine approximation). In one embodiment (Fig. 2) selector switches RR, 47, 48, RA are first set to their position RE in which the counters 10 and 42 are zeroized. They are then moved to the next position so that the counters are supplied with pulses until the count in the counter 10 represents the position of the member B. The counter 10 will count forwards or backwards depending on which scale graduation the movable member B is nearer. If required however the counter 42 may count forwards when the counter 10 is decremented, a negative sign being set up in the counter 42. When the selector switches are moved to their next position ID the contents of the counter 42 may be modified e.g. by introducing a member representing the total number of scale graduations passed by the member B and the selector switches are then moved to their lowest position NO when the loop of a servo system is re-closed and the digital position measuring device operates normally. In a second embodiment (Fig. 3, not shown) the apparatus is adapted to transfer the contents of counter 10 to counter 42 when the selector switches are in one position and to transfer the contents back into counter 10 in their next position.
Patent GB-569988-A (GB)
Title: Improvements in or relating to mathematical instruments
IPC: G01B3/02
Filed: 1943-10-13
Abstract: 569,988. Rulers and the like. JOHNSON, MATTHEY, & CO., Ltd., and WYNN, G. W. N. Oct. 13, 1943, No. 16781. [Class 97 (iii)] Scale markings, provided on the surface of glass rulers, protractors, &c., which is adapted to contact the surface of the drawing paper, are formed by applying vitrifiable enamel and firing the ruler &c. Specifications 29530/96, [Class 97], 471,219, [Group XVI], and 543,881 are referred to.
Patent GB-511587-A (GB)
Title: Improvements in and relating to throttle actuating devices for motor vehicles
IPC: G05G1/46
Filed: 1938-02-19
Abstract: 511,587. Controlling motor-vehicle engines; pedals. RUBISSOW, G. A. Feb. 19, 1938, No. 16797/39. Divided out of 511,837. [Classes 79 (v) and 136 (ii)] A device for actuating an accelerator pedal 1, Figs. 1 and 2, which rocks about a horizontal axis (not shown) comprises a member 2 which is connected to the accelerator pedal and is moved by the driver's foot in a plane parallel to the floor board 9. The member 2 is pivoted at 7 to the floor board and is connected by a link, cable or the like 4 to the accelerator pedal 1. An upstanding flange 3 is engaged by the driver's foot which rests on the floor. A guide 8 prevents lifting or buckling of the member 2. The pivot 7 may be situated between the pedal 1 and the flange 3, and the member 2 may be in two or more parts angularly adjustable relatively to each other. In the construction shown in Fig. 10 the member 2 is curved, its pivot 7 may be at different parts of its length to allow adjustment of the two arms of the member, and a fixed guide 34 is provided against which the driver's foot bears. In another modification the member 2 slides in guides on the floor and is connected to the accelerator pedal by a cable passing over a pulley. Means for connecting the link or cable 4 to the accelerator pedal are described. A friction increasing or reducing surface may be provided between the member 2 and the floor.
Patent GB-281740-A (GB)
Title: Improvements in thermionic valve circuits
IPC: H03J3/06
Filed: 1926-07-06
Abstract: 281,740. Gramophone Co., Ltd., (Victor Talking Machine Co.). July 6, 1926. Thermionic amplifiers.-In order to neutralize the effect of internal capacity in thermionic amplifiers parts of one or both coils of an intervalve transformer are shunted by a condenser in series with a resistance. Thus the secondary 8, Fig. 1, part of which is closely coupled and part loosely coupled with the primary 5, has a condenser 10 and resistance 11 shunted across the closely coupled part. In the system shown in Fig. 2 the primary coil 20 is in two parts connected in shunt, and the secondary coil 24 is similarly divided, the condenser 10 being connected to two electrically symmetrical points in the two halves of the secondary. The number of turns shunted, the capacity 10 and the resistance 11 are so adjusted that the load on the valve 3 is capacitative, so that oscillation is dis. couraged at high frequencies without loss of amplification at low frequencies.
Patent GB-1180187-A (GB)
Title: Improvements in or relating to Vapor Phase Etching and Polishing of Semiconductors
Inventor: HAYS ROBERT GUY
IPC: C23F1/12
Filed: 1968-04-09
Abstract: 1,180,187. Etching. MOTOROLA Inc. 9 April, 1968 [8 May, 1967], No. 17008/68. Heading B6J. [Also in Divisions C7 and H1] Semi-conductor material, e.g. silicon or germanium, is etched or cleaned by contacting with a gaseous mixture of hydrogen and an interhalogen compound of fluorine while the temperature of the semi-conductor material is maintained above 100 C. The interhalogen may be C1F, C1F 3 , BrF, BrF 3 , BrF 5 , IF 5  or IF 7  and the concentration of the interhalogen in a gas stream passing over the Si or Ge should be between 0À01% and 2% by weight, the nitrogen content being below 50 p.p.m. by weight. The apparatus used (Fig. 1, not shown) is similar to that disclosed in Specification 1,047,942. This etch-cleaning process may be an intermediate step in the formation of various semi-conductor devices, the methods of formation being analogous to those which are also disclosed in the above-mentioned Specification. The semi-conductor material is etched non-preferentially, that is, all the crystal structures present are attached to give a smooth surface.
Patent GB-711008-A (GB)
Title: Improvements relating to methods of and apparatus for removing hydrogen sulphide from gases
IPC: C10K1/10
Filed: 1952-07-07
Abstract: 711,008. Purifying gases. ALTHOFF, R. LUEG-. July 7, 1952 [July 12, 1951], No. 17044/52, Class 55 (2) Hydrogen sulphide is selectively absorbed from gases containing hydrogen sulphide and carbon dioxide by washing the gases with an aqueous solution of ammonia, the time of contact being short and the washing effected in a washer containing one or more metal plates formed with slit-like openings by pressing strips of the metal out of the plane of the plate without detaching them from the plate. The washing may be followed by a washing with water in an apparatus containing similar metal plates to remove ammonia from the gas. The ammonia available for removing hydrogen sulphide from the gas should preferably be double the theoretical quantity for the amount of hydrogen sulphide to be washed out.
Patent GB-1075574-A (GB)
Title: Heat exchangers
Inventor: CROOM EDWARD ANTHONY GUNTER
IPC: F28F19/04
Filed: 1964-04-24
Abstract: 1,075,574. Coated metal heat-exchanger element. ENGLISH ELECTRIC CO. Ltd. April 22, 1965 [April 24, 1964], No. 17059/64. Heading B2K. [Also in Division F4] A heat-exchanger element is produced by assembling the metal element e.g. of aluminium, steel, loading the assembled element into a sealable container, evacuating the container for a first predetermined time interval, filling the tank with a curable corrosionresistant compound, maintaining the vacuum for a second predetermined time interval sufficient to ensure that there are no air bubbles in the compound, pressurising the container for a third predetermined times interval whereby to form a coating over the assembled element and to force the compound into any crevices of the assembly, and curing the formed coating of compound. A conversion coating i.e. a thick oxide or chromate-oxide mixture film, may be produced by an alkaline process on part at least of the heat exchanger element before the pressurising step. A first conversion coating may be provided for the elements and tubes prior to the assembly of the latter and a second conversion coating is provided for the element after the assembly. The corrosionresistant compound may be an epoxy or polyester resin, polyurethane, rubber or silicone, containing a corrosion inhibitor e.g. strontium chromate. As shown in Figs. 3 and 4, the exchanger has a large number of parallel aluminium cooling fins 15 perpendicular to tubes 14 and spaced apart by spacer rings 16 threaded on each tube 14. The fins 15 and rings 16 are in good heat-exchange contact with the tubes 14. The tubes and spacer rings may also be of aluminium.