baber/WOPTO huggingface dataset:
Patent GB-242862-A (GB)
Title: Improvements relating to boilers or steam generators
IPC: F22B27/02
Filed: 1925-03-25
Abstract: 242,862. Bagnulo, A. March 25, 1925. Water-tube boilers.-The water-tube elements of a quick steaming boiler are constructed in the form of helical coils, or otherwise, so as to provide a number of parallel combustion spaces each of which is heated by a burner placed at one end, the turns of each coil &c. being connected to one another through auxiliary collectors communicating with main collectors feeding the water and discharging water and steam respectively. The water-tube elements of a marine boiler comprise helical tubes 1 providing combustion spaces each turn of the coils being connected by small tubes 1<1> to two collecting pipes 3, 4 communicating with a drum 5 having a dome 6. In each combustion space which may have a fire-proof liner is arranged a naphtha burner 2 with preferably a spraying cone 7. Superheaters are arranged adjacent the drum and the whole in enclosed in a casing. Figs 10 and 11 show other forms of water-tube elements providing the parallel combustion spaces.
Patent GB-669725-A (GB)
Title: Improvements in and relating to beet topping machines
IPC: A01D23/06
Filed: 1950-03-30
Abstract: 669,725. Beet-topping machines. AKTIEBOLAGET ARVIKA-VERKEN. March 30, 1950 [April 6, 1949], No. 8000/50. Class 6(iii) Relates to beet-topping machines of the kind in which the topping knife 14 is automatically adjusted in height by a toothed disc 7 which rides over the tops of the beets and in which the severed tops are delivered to a collector by an elevator 15 driven from the running wheels 12. According to the invention, the elevator adjoins the cutting knife and extends in a straight direction obliquely rearwards relatively to the direction of travel of the machine, whereby the severed tops are directly caught by the elevator and delivered laterally of the . machine. The frame 1 of the machine shown has runners 2, a draft eye 4 and a pair cf handles 13. The knife 14 and disc 7 are carried by limbs of a pivoted arm 5, and the disc is driven by chain and sprocket gearing from the axle of the wheels 12. The elevator is fitted with resilient grippers 17 and is driven by gearing from the wheel axle. 'The elevator delivers to a basket 18 which can be rotated by a handle 20 to empty the contents.
Patent GB-652303-A (GB)
Title: Adsorption separation process for hydrocarbons
IPC: C07C7/11
Filed: 1948-03-17
Abstract: <PICT:0652303/III/1> In the separation of a gaseous mixture consisting essentially of C1, C2 and C3 hydrocarbons with or without higher hydrocarbons employing a common liquid or fluidized solid absorbent such that the hydrocarbons are reversibly absorbed with increasing readiness in the order named, the mixture is passed through a first contacting zone in counter-current to the absorbent coming from a second contacting zone so as to absorb C3 and higher hydrocarbons and strip C2 hydrocarbons from the absorbent, the major proportion of the unabsorbed gases being withdrawn and a minor proportion being passed through the second contacting zone in countercurrent to fresh absorbent whereby C2 hydrocarbons are absorbed and unabsorbed gases withdrawn.  As shown, the gaseous mixture is fed at 16 to column 11 and liquid absorption oil, e.g. C5-C7 hydrocarbons is fed at 15.  Heat is supplied by means 19 to strip C2 hydrocarbons from the oil.  Fat oil containing C3 hydrocarbons is withdrawn at 14 and delivered to stripping column 26 wherein the C3 hydrocarbons are removed and from which the lean oil is recycled to column 11.  A major portion of the unabsorbed gas in column 11 comprising C1 and C2 hydrocarbons is withdrawn at 17, the remainder comprising substantially C1 hydrocarbons is discharged at 12.  When a multiplicity of separations is desired, several of the off-take lines 17 are provided at spaced points between the gas and absorbent entries.
Patent GB-1362605-A (GB)
Title: Temperature control circuits
IPC: G05D23/24
Filed: 1972-02-22
Abstract: 1362605 Automatic control of temperature LINDE A G 22 Feb 1972 [26 Feb 1971] 8015/72 Heading G3R [Also in Division H3] In a temperature control arrangement for a refrigeration plant (e.g. for foodstuffs, blood etc), in the event of short-circuit or opencircuit of a temperature sensor 5 or of failure of electric supply to the control circuit, a relay 1 is de-energized (or its energization is prevented) whereby it operates a switch (not shown) controlling the supply of current to the refrigerator thus switching the refrigerator plant to continuous operation. A second relay 13 may be provided to give aural or visual indication of the fault conditions. In normal operation, the NTC sensor 5 varies the potentials at points B, C in accordance with the operating temperature of the refrigerating plant. As the resistance of 5 increases with fall in temperature sensed, it causes the potential at B to go more negative until at a certain value a transistor 8 is biased to conduction. This causes transistors 2 and 3 to conduct since transistor 3 is held ready for conduction by the relatively positive potential at point C. Therefore relay 1 is energized whereby the refrigeration plant is switched off. As the temperature sensed increases  and resistance of the sensor falls, point B becomes more positive until transistors 8 and 2 are biased OFF and the relay is de-energized. If the sensor 5 open circuits, a negative potential will appear at point C biasing transistor 3 off so that energization of relay 1 is prevented. Thus the refrigeration plant will run continuously. If the sensor 5 is short-circuited, the point B will become more positive such that transistor 8 and hence also transistor 2 are blocked whereby energization of relay 1 is prevented.
Patent GB-1147681-A (GB)
Title: Coated articles and method of making
Inventor: FEHNER ROBERT HARRY
IPC: E04D7/00
Filed: 1966-02-23
Abstract: 1,147,681. Ornamenting. MINNESOTA MINING & MFG. CO. 23 Feb., 1966, No. 8023/66. Heading B6G. [Also in Division C1] A metal sheet, e.g. of aluminium or steel has applied thereto or a base sheet of bituminous material has applied thereto so as to make asphalt roofing, a surfacing of colour coated granules comprising a base mineral granule having bonded thereto a pigmented unglazed coating comprising the reaction product of soluble alkali metal silicate, clay, preferably kaolin, and a metal borate (see Division C1
Patent GB-231506-A (GB)
Title: Improvements in change speed gear
IPC: F16H61/02
Filed: 1925-03-25
Abstract: 231,506. Kernisan, J. L. M. A. de. March 26, 1924, [Convention date]. Controlling variable-speed gearing automatically by centrifugal blocks B in a revoluble driving fly-wheel V. Loosely held against the face of the wheel V are a series of crown wheels 1 - - 6 which have clutch recesses E adjacent the wheel face. The. wheel V is driven through a train a, b, c and the crown wheels mesh with toothed wheels 1<1> - - 6<1> and 1<11> - - 6" fast on shafts 8, 9 connected through a rectifying train 10. The blocks B are controlled in addition by springs R, r and move in unison so that star wheels q with clutch teeth are simultaneously in clutch engagement with the recesses E of one of the crown wheels, which thus selectively transmits the drive to the shaft 9.
Patent GB-371125-A (GB)
Title: Improvements in or relating to surgical dressings
IPC: A61F13/02
Filed: 1931-03-16
Abstract: 371,125. Surgical dressings. JOHNSON & JOHNSON (GT. BRITAIN), Ltd., Slough, Buckinghamshire. - (Johnson & Johnson ; New Brunswick, New Jersey, 17.S.A.) March 16, 1931, No. 8052. [Class 81 (ii).] A surgical dressing F!C.2. 6 comprises adhesive tape 5, rendered resistant to washing and the action of solvents on its outer side, as by impregnation with phenol-aldehyde resins, and having an aperture 8 therein permitting the application of medicaments to dressing material 6 secured to, or independent of, the tape and at least of the same width as the tape over a portion of the length thereof. The apertures 8 may be in the form of pairs of opposed crescentshaped holes, or opposed part-circular slits in the tape.
Patent GB-903620-A (GB)
Title: Sheet material stretching machine
Inventor: PADGETT JACK
IPC: B21D11/02
Filed: 1960-03-07
Abstract: 903,620. Stretch forming. ROLLS-ROYCE Ltd. March 1, 1961 [March 7, 1960], No. 8052/60. Class 83 (4). A machine for stretching sheet material into a desired shape comprises two spaced clamps 13, 14 for engaging opposite edges of a metal sheet 21, a support member 10 disposed between the clamps, the support member being adapted to support a former 11 which is engageable with the sheet 21, and means 12 for moving the support member 10 so as to cause the former 11 to stretch the sheet 21 beyond its elastic limit, the clamps 13, 14 being movably mounted in such a way that, when the sheet 21 is stretched, the clamps become disposed in positions such that there is no substantial bending of the sheet at the clamps. The clamps 13, 14 are pivotally mounted at 15, 16 and each carry a fixed stop 17 and an adjustable stop 18 to engage a surface 20 to limit the pivotal movement. The means 12 comprises an hydraulically-operated ram.
Patent GB-1382936-A (GB)
Title: Integrated circuit fabrication method
IPC: H01L27/112
Filed: 1973-02-19
Abstract: 1382936 Semi-conductor devices MOTOROLA Inc 19 Feb 1973 [31 March 1972] 8094/73 Heading H1K An integrated circuit comprising an array of IGFETS is produced by initially diffusing source and drain interconnection paths into a wafer, forming gate electrodes and interconnections on the wafer, and using the gate electrodes as masks to diffuse source and drain regions into the wafer so as to contact the diffused paths. Following initial path diffusion, windows are opened in a thick insulating layer on the wafer, followed by thermally growing a thin oxide layer therein. The gate electrodes and interconnections, which may be of polycrystalline silicon, are produced on the oxide and surrounding insulating layer, and may be doped, during the subsequent source and drain diffusion, to increase their conducitivity. A layer of phosphorus doped glass may passivate the device. The wafer may be of silicon, the oxide SiO2.
Patent GB-947151-A (GB)
Title: Improvements in or relating to the preparation of silicon iron strip
Inventor: WALKER EDWARD VALENTINE
IPC: C22C32/00
Filed: 1959-03-09
Abstract: In a process of producing sintered grain oriented silicon-iron strip, a mixture of Si and Fe powder, preferably 95-97 1/2 % Fe and 2 1/2 -5% Si, is compacted, sintered, cold rolled and annealed, the sintering and annealing being conducted in hydrogen containing a controlled proportion of water vapour so as to produce a dispersed phase of SiO2 in the compact, and the sintered compact is then cold-rolled with intermediate annealing to form a strip which is then annealed in a non-oxidizing atmosphere to produce the required secondary recrystallization. The pressed compact is preferably first deoxidized by heating in hydrogen at 300  DEG C. and the dispersed SiO2 phase is formed by sintering in moist hydrogen the dew point of which is adjusted according to the sintering temperature, e.g. -30 DEG C. at 1050  DEG C., -55  DEG C. at 1100  DEG C. and also the density of the "green compact". The sintered compact with the dispersed SiO2 phase is then cold rolled and annealed in stages and then annealed for 10 hours at 1350  DEG C. in a non-oxidizing atmosphere to produce the required structure.  Final annealing at 1050-1350  DEG C. may then be effected after the final cold rolling to size.
Patent GB-797675-A (GB)
Title: Fluid mixing valves
IPC: G05D23/13
Filed: 1955-03-21
Abstract: 797,675. Valves. JORGENSEN, E. Feb. 24, 1956 [March 21, 1955], No. 8128/55. Class 135. A mixing valve for hot and cold liquids comprises a hollow body 4 defining a mixing chamber 6 having an outlet, on a plate detachably secured to the front of chamber 6, and opposed inlets 9 controlled by freely pivoted valves 10 acted upon by a thermal element 13 between the valves, and means 15 operable externally of the body, e.g. by a handle mounted on the plate eccentrically to the spindle 15, for setting the element 13. The element 13 is formed of two corrugated bimetal strips linked at their lower ends and fixed at the top to a rocker 14 embracing the setting spindle 15. On unscrewing a handle 28a, a valve 28 is raised to allow preferably cold water via body passage 26 to act via passages 29 beneath pistons 25 which then open valves 20 allowing the liquids to flow from the supply connections 5 past the valves 10. A manual flap valve in the outlet may be closed to divert the mixture to a spray connection in the side wall of the outlet.
Patent GB-1388254-A (GB)
Title: Process for producing fine-grained coke
IPC: C10B49/16
Filed: 1973-02-19
Abstract: 1388254 Fine grain coke METALLGESELLSCHAFT AG and BERGWERKSVERBAND GmbH 19 Feb 1973 [23 Feb 1972] 8139/73 Heading C5E Fine-grain coke is produced by a process comprising (a) introducing a high-boiling tar fraction produced in a subsequent process step into recirculated heated fine-grain coke thereby to crack a portion of the tar in the fraction, (b) introducing fine-grain coal into the coke/tar mixture in a mixing zone at 730-760‹ C., (c) withdrawing from the top portion of an intermediate zone located below the mixing zone gases and vapours produced by the degasification of the coal and as a result of introducing the tar fraction, (d) subjecting the gases and vapour to dust collection followed by fractional condensation, (e) recovering from the fractional condensation a dust-containing, high-boiling tar fraction (f) recycling this tar fraction back for mixing with the coke at a rate about twice the rate at which fresh high-boiling tar is formed by the degasification of the coal introduced into the mixing zone, (g) recirculating part of the coke which is formed from the intermediate zone for mixing with the tar fraction, (h) withdrawing fine grained coke from the process. Air is mixed with the gases and vapours after mechanical dust collection.
Patent GB-903495-A (GB)
Title: Improvements in and relating to planetary gears
Inventor: BRANDT HERBERT
IPC: F16H1/28
Filed: 1961-03-06
Abstract: 903,495. Toothed gearing. GETRIEBEWERKE LEIPZIG VEB. March 6, 1961, No. 8160/61. Class 80 (1). In planetary gearing comprising an input sun gear 6, an output planet carrier 13 and an outer ring gear 10, the ring gear 10 is mounted in a housing 1, 2 by means of balls 21 located in conical depressions 23, 21 in the end faces of the ring gear and corresponding opposing surfaces of the housing in order to ensure uniform torque distribution. A driving shaft 3 is coupled to the sun gear 6 by means of a toothed sleeve 22. In a modification, pressure rings 19 are inserted in the housing and transmit torque from the balls 14 to the housing via shear pins 20.
Patent GB-126803-A (GB)
Title: Improvements in or relating to Turbines.
IPC: F01D5/02
Filed: 1918-05-16
Abstract: 126,803. Baumann, K., and British Westinghouse Electric & Manufacturing Co. May 16, 1918. Blades; rotors.-Blade-carrying disks or segments 3, Fig. 1, which are not in themselves sufficiently strong to withstand the centrifugal forces of the blades 7, are secured to the shaft 1 by an attachment 6 which is separate and distinct from the attachment 10 by which the blades are secured in position and such that it transmits the whole or the greater part of the said centrifugal forces to the shaft. Modified forms of the blade-holder 3 and its attachment are described. For example, the holder 3 may consist of a number of plates, Fig. 4. Radial slots 11, Fig. 5, may be formed in the segments of the holder 3 to reduce tangential pull on the rivets. The holder 3 may be assembled on the shaft 1 in an undercut groove 12, Fig. 6, or between claws 17, Fig. 7, engaging collars 15, 16 on the shaft and holder respectively, or in axially alined grooves 20, Figs. 10-13, of various shapes formed in the shaft. The inner edges of the segments 3 forming the holder may be rectilinear so as to slide into grooves 23, Fig. 16, located round the shaft. The grooves 23 may be undercut, or the segments may be held therein by pins or wedges 25, Fig. 17. Reference has been directed by the Comptroller to Specifications 27220/09 and 4899/15.
Patent GB-107223-A (GB)
Title: An Improved Method of Fixing the Base-plate of Projectiles applicable also for like purposes.
Inventor: BRINDLEY HARRY SAMUEL BICKERTO
IPC: B21K1/00
Filed: 1916-06-13
Abstract: 107,223. Brindley, H. S. B. June 13, 1916. Projectiles; wheels.-Consists in a special method of fixing the base-plate of a projectile within its recess in the base, which method is applicable also to the fixing of any metal part within a surrounding member, for example fixing a wheel disk within its tyre. According to the invention, the base-plate a or other inner part has a relatively small projection b formed thereon, and pressure is applied to the projection when the plate is in position so as to cause the metal to flow outwardly and thereby produce a tight fit. For additional security, the face of the, plate a or of the surrounding part c is knurled, rolled, or pressed.
Patent GB-722682-A (GB)
Title: Coupling for electric cables
IPC: H01R4/50
Filed: 1953-03-26
Abstract: 722,682. Two-part couplings; cable terminals. KRUGER, P. E. F. March 26, 1953 [March 26, 1952], No. 8404/53. Class 38 (1). A cable coupling comprises a contact piece 3 fitting round the stripped end of the cable core, and a member 4, the ends of the wires of the core being anchored between the parts 3 and 4. A sleeve 9 screws on a threaded part 7 of the member 4 and can be moved forward to project over the end of the coupling, its movement being limited by a flange 12. In order to connect two cables (Fig. 1), a coupling is fitted on to each, and the sleeve 9 of one is screwed on to the member 4 of the other, thus pressing the cable ends together. The coupling may also be used to secure a cable to a terminal (Fig. 2), the sleeve being screwed over a threaded part 14 and the electrical connection being made by a projection 17 which presses into the cable core 6. The sleeve 9 may, alternatively, be screwed back, and the member 4 screwed into an internally-threaded part of a terminal, Fig. 3 (not shown).
Patent GB-210656-A (GB)
Title: Improvements in spectacle trial frames
IPC: G02C13/00
Filed: 1923-03-26
Abstract: 210,656. Moseley, A. March 26, 1923. Sight-testing apparatus. - In trial frames having friction wheels supporting and rotating the cylindrical lenses the bracket A supporting the wheel C is made of strip or wire and joined to the frame independently, so that the axis indications of the cylindrical trial lens may be readily made coincident with the degree marks on the frame. Specifications 1254/04 and 24314/13 are referred to.
Patent GB-541908-A (GB)
Title: Improvements relating to shelf supports, knobs and the like
IPC: A47B96/06
Filed: 1940-05-13
Abstract: 541,908. Stud and socket fastenings. TINNERMAN PRODUCTS, Inc. May 13, 1940, No. 8566. Convention date, Nov. 10, 1939. [Class 44] [Also in Group XIV] A shelf support, knob &c. is retained in a hole 2 in a plate 1 by a spring collar 22 embracing a stem 15 and having external longitudinal ribs 21 in which V-shaped notches 24 are formed to form shoulders to engage the hole 2. The collar is bent inwards at 23 forming a sharp edge to dig 'into the stem 15. The peg shown is for supporting a shelf in a refrigerator, and may be made of plastic material having spaced flanges 10, 11, the inner flange 11 having a recess 17 and a surface 18 for bearing against the plate 1.
Patent GB-1299718-A (GB)
Title: Combination of electric converter and electric motor
IPC: H02J7/02
Filed: 1969-11-26
Abstract: 1299718 Battery charging systems for small electric apparatus SCHICK Inc 26 Nov 1969 [28 March 1969] 8592/72 Divided out of 1299715 Heading H2H [Also in Division H3] The Specification is substantially the same as that disclosed in Specification 1,299,716 but the claims are concerned with an electric motor 46 and the circuit connections of two coils 56, 57 between the collectors of two transistors 54, 55 of an inverter, the connection of two further coils 58, 59 between the base electrodes of these transistors, a resistor 60 connected between the interconnected pairs of coils 56, 57 and 58, 59 and a resistor 61 connected to the interconnected coils 58, 59 and to a common line and means 65, 66 for rectifying the output of the inverter and connecting it to the motor 46. Specifications 1,299,715 and 1,299,717 are referred to.
Patent GB-1446912-A (GB)
Title: Light trackers
IPC: G01S3/783
Filed: 1973-02-21
Abstract: 1446912 Missile tracking BRITISH AIRCRAFT CORP Ltd 21 Feb 1974 [21 Feb 1973] 8598/73 Heading H4D In a missile tracker wherein a lens 1 projects an image of the missile on to a bank of photoelectric detector elements 6, variations in the intensity of the images as it goes in and out of focus and in the case of an out of focus image, when it moves across the elements, can cause incorrect operation. To overcome this, the lens 1, e.g. a Fresnel lens is constructed to have two focal lengths x and y and the bank of detector elements 6 is positioned between the corresponding focal planes 4, 5. The total illumination of the bank of elements, i.e. the sum of that of the diverging cone and that of the converging cone, remains substantially constant as the missile changes its range, and the effect of any variation of illumination across the diverging cone on the elements is counterbalanced by an opposite (inverted) variation across the converging cone. The lens may be formed by alternate annular prisms giving the two focal lengths with the same light transmissions. Instead of a Fresnel lens, a standard optical lens of one focal length may have cemented to one surface concentric annular prisms spaced apart from each other to give the second focal length.
Patent GB-195405-A (GB)
Title: Improvements in internal combustion engines of the sleeve valve type
IPC: F01L7/00
Filed: 1923-03-26
Abstract: 195,405. Soc. Anon. des Anciens Etablissements Panhard et Levassor. March 27, 1922, [Convention date]. Addition to 182,428. Valves.-The ports in the steel sleeve valves described in the parent Specification are obtained by punching.
Patent GB-609667-A (GB)
Title: Means for exciting synchronous alternating current machines through rectifiers
IPC: H02P9/38
Filed: 1946-03-20
Abstract: 609,667. Synchronous machines. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. March 20, 1946, No. 8608. Convention date, April 9, 1945. [Class 35] In a synchronous A.C. machine which is excited through a rectifier supplied from the machine terminals, the load current is transformed into a proportional voltage by means of a resonant circuit, and this voltage is combined with that derived directly from the machine terminals, their sum feeding the rectifier. As shown for a single-phase alternator 1, the resonant circuit 6, 7 is energized by a current transformer 4, a voltage proportional to and in quadrature with the load appearing at 8. This voltage is connected in series with the rectifier 9 and the secondary of a voltage transformer 5. A three-phase modification (not shown) employing a mercury arc rectifier is also described, the resonant circuits in each phase being connected in series with the primary of the rectifier transformer. Compensation for inductive loads and elimination of harmonics is achieved 'by displacing the current transformer tapping from its centre position.