baber/WOPTO huggingface dataset:
Patent GB-939992-A (GB)
Title: Improvements in or relating to wind trap ventilators
IPC: F24F7/00
Filed: 1962-07-24
Abstract: 939,992. Ventilators. M. LANDAU. July 24, 1962 [Aug. 4, 1961; June 14, 1962], No. 28469/62. Class 137. A ventilator for a building comprises a substantially horizontal or slightly inclined shaft 101 of square section extending through a wall 102 of the building and having an external cover 106 which extends outwardly and downwardly from the upper edge 105a of a metal liner 105 which lines the shaft. Two vertical plates 107, 107a extend longitudinally of the shaft in the centre thereof being retained in grooves 103 in the upper and lower surfaces of the liner. The outer ends of the plates curve in opposite directions to join the cover at its outer edges. A plate 105b extends from the lower edge of the liner to the lower edge of the cover the arrangement of parts being such as to define openings 108, 108<SP>1</SP> on either side of the ventilator so that wind blowing parallel to the wall enters one or other of these openings and passes up the shaft into the interior of the building. Gauze filter screens 110 may be inserted to cover the openings 108, 108<SP>1</SP> and two superposed shutters 111, 111a each having a cut-out 1111 corresponding to the height of the shaft, are disposed over the inner end of the shaft the relative positions of the shutters being adjusted to control the flow of air. A further vertical shutter 117 may be used to close the ventilator shaft automatically e.g. when a door in the building is opened. A towel 115 in the form of an endless belt mounted on rollers 114, 114a and arranged so that its lower end is immersed in a trough of water 112<SP>1</SP> may be arranged close to the internal opening of the shaft and serves to humidify the incoming air. In a modification (Figs. 1-3, not shown) a single vertical plate divides the shaft and abuts the cover at right angles.
Patent GB-1373140-A (GB)
Title: Hull for icebreaking cargo vessel
IPC: B63B35/08
Filed: 1972-06-19
Abstract: 1373140 Icebreaking cargo vessel EXXON RESEARCH & ENG CO 19 June 1972 [7 July 1971] 28500/72 Headings B7A and B7S In an icebreaking vessel having a downbreaking bow 13 and a cargo-carrying section 19, 20 the maximum ice-waterline beam of the hull is located in the bow and the ice-waterline aft of this has a relatively smaller beam aft of the midpoint of the hull. The portion of the hull below the ice-waterline has a maximum beam located in the aft part of the vessel and this maximum beam is greater than the maximum ice-waterline beam. Vertical sections through the hull in the forward portions of the vessel to a predetermined section aft are such that the hull slopes downwards and inwards and the hull aft of the predetermined section, including the stern, slopes downwards and outwards. The vessel has greater manoevrability, greater displacement, greater icebreaking facility and greater rudder and screw protection against it when proceeding astern in ice.
Patent GB-689805-A (GB)
Title: Improvements in and relating to liquid cooling towers and the like
IPC: F28F25/04
Filed: 1950-11-22
Abstract: 689,805. Water-cooling tower. FOSTER WHEELER, Ltd. Nov. 22, 1950 [Dec. 31, 1949], No. 28551/50. Class 64 (i) Relates to water-cooling towers having a chamber the bottom of which is spaced from the ground level to provide air inlets, and a water reservoir below the chamber bottom, air, under induced draught, being admitted below and withdrawn above the chamber, after passing through the usual filling. Furthermore, water-distributing means below the air outlet, and water-collecting means leading to the reservoir are also provided. According to the invention, a number of air spaces are provided through the reservoir so that air is free to flow into the tower from any side. In the form shown, a single cell for the tower comprises sides 11, 12 ends 13, 14 and roof 15. The sides and ends are sheathed between level P, Fig. 5, and roof to enclose an openbottomed chamber spaced from the ground level L and in two sections 25', 25" separated by space 26. This space has a rectangular distributing water conduit 34, gutters 38 leading from the conduit across the chamber sections to the sides 11, 12 and draining through spouts 40 on to atomizing splash plates 41 which drop water on to the usual fillings 42, extending downwardly to level D. The water passes through the fillings in heat-exchange relationship with air induced upwardly through openings 19 by a fan 59. The water drops into inclined collecting troughs 44 arranged in staggered formation and drains into the reservoir 45. The reservoir has tapered wooden sides 50,51 and the top, above the level P, extends into the space 26 to receive the discharge from the troughs. Tunnel-like openings for the passage of air traverse the reservoir which discharges into a tank 49 below the level L. The inclined floor 56 has a surface drain 55 leading to a sump 57 from which water reaches the tank 49 by a pump 58. The tower is strengthened against wind load by a reinforced central section comprising vertical columns 28, inclined struts 32, 33, and bracing 31. Air is drawn upwardly through the tower by the fan 59 driven by motor 64 and arranged in a housing 66 in the roof. Water to be cooled enters the conduit 34 through a pipe 65, Fig. 1, and is withdrawn by pipe 65<SP>I</SP>.
Patent GB-742213-A (GB)
Title: Improvements in or relating to packing washers for pipe-joints
IPC: F16L23/22
Filed: 1953-10-16
Abstract: 742,213. Joint-making packing. DYNAMIT-AKT.-GES., VORM, A. NOBLE & CO. Oct. 16. 1953 [Oct. 17. 1952]. No. 28625/53. Class 122(3) [Also in Group XXVIII] A packing washer 3 for use between pipe ends 1, 2 is grooved on its sealing faces to form annular serrations the walls of which define an angle of approximately 30 degrees, the inner wall being substantially parallel to the longitudinal axis of the washer. The material of the washer is preferably harder than that of the pipes and may be of metal or synthetic material, particularly polyvinyl chloride without the addition of a 'plasticizer. The washer is clamped between the pipe ends by bolts 7 and centred by an inner conical centring collar 6. In a modification the washer is frusto-conical in cross section and has both inner and outer centring, collars.
Patent GB-504894-A (GB)
Title: Improvements in and relating to aircraft sustaining rotors
IPC: B64C27/51
Filed: 1937-11-08
Abstract: 504,894. Aircraft with rotary-wing systems. CIERVA AUTOGIRO CO., Ltd., and BENNETT, J. A. J. Nov. 8, 1937, No. 28665/38. Divided out of 494,739. Drawings to Specification. [Class 4] In a sustaining or lifting rotor for gyroplanes or helicopters in which the rotor-blades are independently articulated to the hub for flapping and combined leading-and-lagging and pitch-varying movements, a rotor blade is connected by a flapping pivot to an intermediate articular, member is connected to the hub by an inclined pivot permitting the combined leading-and-lagging and pitch-varying movement. The rotor head may include a centrally disposed frictional damper connected to the intermediate members. As shown, the invention is applied to a rotor constructed. similarly to that described in Specification 494,427. Specifications 420,322 and 474,681 also are referred to.
Patent GB-843840-A (GB)
Title: Digit delay and pulse re-shaper electrical circuit
Inventor: WILLIAMS NIGEL ARTHUR FREDERIC
IPC: H03K5/156
Filed: 1957-09-12
Abstract: 843,840. Transistor pulse-shaping circuits. BRUSH ELECTRICAL ENGINEERING CO. Ltd. Sept. 9, 1958 [Sept. 12, 1957], No. 28791/57. Class 40(6). In a transistor circuit for deriving in response to input pulses, in a digital computer, regenerated output pulses delayed by one clock-pulse period the circuit is so arranged that no transistor operates under current saturation conditions for more than half a clock-pulse period; as a result hole-storage effects are small. Input "used" pulses and clock pulses, Fig. 1a are applied to diodes D 1 , D 2  respectively of an AND-gate to charge capacitor C 1  through resistor R 1  and diode D 3  during their coincidence. At the end of coincidence capacitor C 1  discharges through resistor R 2  and the emitter-base path of transistor TRI. During discharge the base of the transistor is negative and hence during the application of "reset clock" pulses the transistor estimates; however the time constant of the discharge circuit is so chosen that this condition is maintained for not more than half a clock pulse period. During the application of a pulse to the base of transistor TR1 the collector of the transistor assumes approximately earth potential and capacitor C 2  is discharged. The voltage level of the capacitor C 2  is maintained until the next "reset clock" pulse whereupon if no pulse is applied to the base of transistor TR1 the capacitor charges negatively so that an output pulse lasting for one clock pulse period is developed across the capacitor C 2 . This pulse is applied to emitter follower output transistor TR2.
Patent GB-294808-A (GB)
Title: Improved means for preventing unauthorised use of motor or other cycles
IPC: B62H5/06
Filed: 1927-10-28
Abstract: 294,808. Cristiani, S. Oct. 28, 1927. Sliding bolts. - In motor and other cycles a lock is provided to prevent movement of the steering column, the bolt being parallel to the column. The lock 6 is housed in a casing 5 secured to the frame by the bolt 4 of the steering fork. Arms 14 surround a hub 5<11> of the casing and are secured to the top tube of the frame. The lower arm has a hole a and locking is effected by rotating a cam 9 by means of a key to raise the bolt 10 to engage in the hole. In the case of motorcycles, rings 12, 16, 17 are interposed. By compressing the rings and arms 14 by means of a wing nut 19 and a spring 18 a braking action on the steering may be obtained. In a modified construction rack teeth are formed on the bolt 10, which is moved by a helical thread on the lock barrel.
Patent GB-153295-A (GB)
Title: Improvements in incandescent cathode valves
IPC: H01J21/02
Filed: 1920-10-12
Abstract: 153,295. Bouchardon, V. J. F., and Lesage, M. A. Oct. 30, 1919, [Convention date]. Vacuum tubes.-A rectifier for high pressures of the order of 30,000 to 100,000 volts has an incandescent filament cathode 1 and an anode 7 mounted at a considerable distance apart in a tube, so that reverse currents are avoided. Partial ionization of the residual gas, sufficient to cause a glow, may be produced during working. The cathode and anode may be mounted in bulbs 1, 6 connected by a narrow tube 5 several decimeters in length. The anode may be heated during exhaustion of the tube. The rectifier may be used with a R÷ntgen-ray tube.
Patent GB-445472-A (GB)
Title: Process and apparatus for obtaining krypton and xenon
IPC: F25J3/04
Filed: 1934-10-09
Abstract: 445,472. Obtaining krypton and xenon. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(I. G. Farbenindustrie Akt.-Ges.; Frankfort-on-Main, Germany) Oct. 9, 1934, No. 28880. [Class 8 (ii)] To obtain krypton and xenon, liquid oxygen from atmospheric air is subjected to several successive rectifications in columns arranged one above another, or side by side. The Figure shows apparatus in which air is rectified in the upper column 1 and oxygen passes down to the column 3 through a cock 2 while oxygen vapour passes back to the upper column through a cock 4. The liquid passes down through cock 5 to column 6, gas rising through the same cock. The liquid finally flows into the interior of a double coil 7 and is withdrawn through a cock 9 ; it consists of a mixture of krypton and xenon contaminated by oxygen and may be treated to obtain pure krypton and xenon. Compressed air passes through the outer coil 10 and through the evaporating coils of the columns 1, 3 in succession, the liquefied air being delivered into the column 1. In a modification, liquid oxygen is delivered into a column in which the evaporating coil is traversed by compressed nitrogen afterwards expanded and delivered to cool the condenser at the top of the column ; the liquid from this column flows to a second column provided in duplicate with jacketed evaporating coils, the liquid passing out through the inner coils and compressed air for evaporation through the outer coils. When one of the inner coils becomes coated with liquid, this coil and its outer coil may be shut off and hot air passed through the outer coil, the inner coil being finally scavenged by opening auxiliary cocks.
Patent GB-702897-A (GB)
Title: Improvements in magnetic dart toys
IPC: F42B6/00
Filed: 1952-11-18
Abstract: 702,897. Toy projectors and projectiles; target games. ZIMMERMAN, H. Nov. 18, 1952. No. 29081/52. Classes 132(2) and 132(3) A toy pistol for projecting a magnetic dart at a target comprises a projector member 9 slidable in a barrel 5 and controlled by a trigger operated catch 16. At the forward end of the projector 9 is a member 11 of magnetic material and at the rear of the projector a spring 12 is affixed. The rear end of the spring is secured between a pair of ribs 14, 15. In operation the pistol is cocked by pushing the projector 9 inwardly and the spring is thus compressed. After placing a dart provided with a magnetic disc 34 on the member 11, operation of the trigger 33 causes the pivoted catch 16 to move clear of a surface 23 formed on the projector 9 which is then propelled forward by the spring which also limits the forward movement of the projector. When the projector is stopped in this way the dart leaves the member 11 and travels to the target.37 on which it is held by magnetism. Sights 7, 8 are provided.
Patent GB-1375451-A (GB)
IPC: F16K11/065
Filed: 1972-06-21
Abstract: 1375451 Selective connecting devices HENRY SIMON Ltd 10 May 1973 [21 June 1972] 29179/72 Heading F2G In a switching device, e.g. in a pneumatic conveyer for particulate material having a flexible pipe 20, ramps 25 and 26 are provided as means for bringing about sealing between a ported member 18 and ports 16 or 17 automatically. As roller 22 rides up the ramp, under pressure from hydraulic or pneumatic ram 23, polyurethane sealing gasket 19 is squeezed between member 18 and one of the ports. The ramps are of adjustable inclination. An indicator lamp may be provided to show which port is connected.
Patent GB-1418609-A (GB)
Title: Vinylsilanes
IPC: C07F7/08
Filed: 1974-07-02
Abstract: 1418609 Unsaturated nitrogen and/or sulphur-containing silanes (ZAIDANHOJIN) SAGAMI CHEMICAL RESEARCH CENTER 2 July 1974 [3 July 1973 14 Aug 1973] 29274/74 Heading C3S Unsaturated silanes containing N and/or S atoms are prepared by reaction of an acetylenic compound with the corresponding hydrogen silane i.p.o. chloroplatinic acid and/or a rhodium complex. A number of suitable starting silanes and rhodium catalysts are listed. In the examples (pyrrolidino- or phenylthio) di(ethyl or phenyl) silane is reacted in 1: 1 molar ratio with hexyne or (the diethyl silanes only) phenylacetylene; the catalysts used are (Ph 3 P) 3 RhCl, (Bu 3 P) 3 RhCl, (Ph 3 P) 3 RhBr, or bis-(phenyl benzyl methyl phosphine) (1,5-cyclooctadiene)- chlororhodium alone or in benzene, or H 2 PtCl 6  in isopropanol.
Patent GB-1112279-A (GB)
Title: Process for dyeing and printing cellulose fibres
IPC: D06P3/60
Filed: 1965-07-09
Abstract: Natural or regenerated cellulose fibres, optionally in the form of mixed weaves with polyester or synthetic polyamide fibres, are dyed or printed with dyestuffs that are not soluble in water by impregnation with an aqueous preparation free of viscose and containing 10% to 50% by weight of the aqueous preparation of at least one compound of the formula Y <FORM:1112279/D1-D2/1> wherein D is O1 S or NH1 and Y and Z are primary, secondary or tertiary amino groups and 2 may also be alkyl, alkoxy or aryl and the treated material is then subjected to a dry heat at 120 DEG  to 250 DEG C. The water insoluble dyes have solubilities in water at 20 DEG C of not more than 0.5 grams/litre.  Cotton, linen, hemp, sisal rayon and spun rayon are used and vat dyes which form a covalent link with cellulose and disperse dyes are preferred. Compounds wherein Y is -NH2, Y and Z are -NH2, Y is -NH2 and D is S are preferred, e.g. urea, thiourea, thiosemicarbazide and Y and Z may form a heterocycle to form hydantoin or uracil.  When dyes containing OH1 NH2, sulphonamide or carbonamide groups are used, a cross linking agent e.g. hexahydro-tri-(w-glycidyl-propionyl)-1, 3, 5-triazine, may be added.  Film-forming, polymerisable or polycondensable compounds e.g. acrylic and epoxy resins and aminoplasts; alkali metal salts, anionic or non-ionic assistants, thickeners, acids or bases, and organic-polar or non-polar solvents e.g. butanol, formamide, dimethyl-formamide diethyl-ketone benzyl alcohol are other additives. The dry-heat treated material may be aftertreated.
Patent GB-692641-A (GB)
Title: Process for treating collagenous materials and product of such process
IPC: A61L17/08
Filed: 1950-11-29
Abstract: The resistance to digestion of collagenous sutures is increased by immersing it in a reducing sugar solution, drying the material and heating it at an elevated temperature.  Drying is preferably carried out at between 20 and 40 DEG  C. and subsequent heating at between 70 and 156 DEG  C.  Sugars which are satisfactory are xylose, arabinose, fructose, glucose, galactose, ascorbic acid, mannose, maltose and lactose.
Patent GB-1088295-A (GB)
Title: Derivatives of alkanoic acids and methods for their preparation
Inventor: DRAIN DAVID JOHN
IPC: C07C205/37
Filed: 1965-07-10
Abstract: Novel compounds of formula <FORM:1088295/C2/1> in which R1, R2, R3 and R4 each represent an alkyl group having from 1-4 carbon atoms, an alkoxy group having from 1-4 carbon atoms, a halogen atom or a trifluoromethyl group, n is 2 or 3, and each of m, p, q, and r is 0 or 1, are prepared (1) by reacting an alkali metal salt of a phenol of formula <FORM:1088295/C2/2> with an alkali metal salt of an o -haloacid of formula X-(CH2)n-COOH in which X is a chlorine, bromine or iodine atom, reducing the nitro group of the o -phenoxyalkanoic acid formed and acylating the resultant amine with an appropriately substituted benzoic acid halide or anhydride, (2) when n = 2 by reacting an alkali metal salt of a phenol of Formula II with b -propiolactone, reducing the nitro group of the o -phenoxyalkanoic acid so formed with hydrogen and a palladium/charcoal catalyst except in the case where m = 0, p = 1 and R2 = 4-chloro when reduction is carried out with sodium dithionite, and acylating the resultant amine with an appropriately substituted benzoic acid halide or anhydride, or (3) when n = 3 by reacting an alkali metal salt of a phenol of formula <FORM:1088295/C2/3> with a lower alkyl ester of an o -haloacid of formula X-(CH2)n-COOH wherein n = 3, and hydrolysing the ester so formed with an alkali metal hydroxide.  Amides of Formula V are obtained by acylating the corresponding aminophenol.
Patent GB-319517-A (GB)
Title: A packing material for soft soap
IPC: B65D65/42
Filed: 1928-10-15
Abstract: 319,517. Frehrs, H. Oct. 15, 1928. Compound paper; paper, treating with special materials.-A packing material impervious to soft soap is made by impregnating paper, such as parchment, with a calcium salt such as calcium acetate, carbonate, or chloride, admixed with a wax or fat, such as paraffin wax, ceresine &c. or palmitin, or stearin. The paste is applied to the paper, at a high temperature, and preferably on this coating a sheet of similarly treated or untreated paper is pressed by rolling &c. The soft soap permeating to the layer of calcium salt forms a protecting layer of insoluble calcium soap.
Patent GB-748001-A (GB)
Title: Improvements in or relating to aerials for multi-band radio receivers
IPC: H01Q7/08
Filed: 1954-10-15
Abstract: 748,001. Aerials. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE], Oct. 15, 1954 [Oct. 17, 1953], No. 29710/54. Class 40 (7). An aerial for a multi-waveband radio receiver comprises a rod R of magnetic material carrying a coil for the reception of signals in one waveband and a supplementary coil for the reception of signals in a longer waveband, wherein the coil for the shorter waveband is arranged to extend over a greater portion of the rod length than is the supplementary coil. Preferably each of the coils is sub-divided into two portions; the elongated winding M1 and short movable winding M2 forming the shorter waveband coil and the windings L1 and L2 forming the supplementary coil. The latter may be short-circuited by a switch S when not required or it may be completely disconnected or placed in parallel with the coil M1, M2. The inductances of the coils may be adjusted by moving the outer portions L2, M2, relative to the inner portions and so changing the mutual inductance. Movement of the outer portion of one coil does not substantially affect the inductance of the other coil. As shown, practically the whole length of the rod is used for longer waveband reception and about <SP>3</SP>/ 6 th of it for reception in the shorter band. The winding M1 need not be elongated as shown, but may be the same as winding M2 and spaced from the latter so that the whole coil extends over a large proportion of the rod length (Fig. 2, not shown). The invention can be applied to aerials for reception on three different wavebands.
Patent GB-745106-A (GB)
Title: Watch spring and a method for making same
IPC: C21D9/02
Filed: 1953-10-27
Abstract: Austenitic nickel-chrome steel alloys for making watch and clock springs [Group XXII] have the following composition: 1-20 per cent of nickel; 10-25 per cent of chromium; 0-3 per cent of silicon; 0-6 per cent of molybdenum, 0-6 per cent of tungsten; 0-2 per cent of beryllium; 0-3 per cent of titanium; 0-0,1 per cent of carbon and the remainder iron.  These alloys can be alloyed with additional elements e.g. up to 4 per cent of silicon plus manganese; up to 10 per cent of columbium; up to 10 per cent of titanium or up to 3 per cent of beryllium these additions as a whole not exceeding 10 per cent of the total alloy.
Patent GB-1494641-A (GB)
Title: Cross-linked hydrogel copolymer
IPC: G02C7/04
Filed: 1974-07-04
Abstract: 1494641 Cross-linked hydrogel copolymer SMITH & NEPHEW RESEARCH Ltd 4 July 1975 [4 July 1974 28 April 1975] 29757/74 and 17586/75 Heading C3P A lightly cross-linked hydrogel copolymeric material capable of an uptake of physiological saline of 65-85% by weight based on the total weight of the gel is formed from (1) at least one water soluble n-vinyl lactam and (2) as a comonomer, not more than 15 mole per cent, based on the total moles of (1) and (2) of (1) and (2), of at least one compound of the formula wherein X is NH or O; R<SP>1</SP> is H or alkyl-(C 1-4 ); and R<SP>2</SP> is either (a) a substituted or unsubstituted aryl group or (b) an alkyl group (C 1-6 ), substituted by at least one substituted or unsubstituted aryl group and/or at least one substituted or unsubstituted aryloxy group or (c) a hydroxyalkyl group (C 1-6 ) further substituted. The specific examples describe the preparation of copolymers of (1) vinyl pyrrolidone and as (2) one of the benzyl, phenoxyethyl, phenethyl, methoxybenzyl, naphthyl, 4-phenylphenyl, 4-benzyl-phenyl, 4-t-butyl phenyl esters of methacrylic acid. Specific cross-linking agents used in the examples are allyl methacrylate, 3-allyloxy-2-hydroxy-propyl methacrylate, 2-allyloxy ethyl methacrylate, 2-(2- allyloxy ethoxy)-ethyl methacrylate and 2-(2- allyloxy-ethoxy ethoxy)-ethyl methacrylate.