baber/WOPTO huggingface dataset:
Patent GB-763805-A (GB)
Title: Improvements relating to radar aerial assemblies
IPC: G01S13/42
Filed: 1955-01-25
Abstract: 763,805. Aerials. METROPOLITANVICKERS ELECTRICAL CO., Ltd. (Compagnie Francaise Thomson-Houston). Jan. 25, 1955, No. 2222/55. Class 40(7) A radar aerial assembly comprises a fixed primary element radiating energy into a beam producing reflector, the reflector being pivoted about a point on its axis and capable of movement to cause the beam to scan spirally or conically. Preferably balancing means are provided for maintaining the reflector in substantial dynamic equilibrium. As shown schematically in Fig. 3 the reflector 1 may be attached to a shaft 11 pivoted at 3 in the front of a housing 9 by' means of a universal coupling allowing it to oscillate about two axes perpendicular to each other and the shaft 11. To maintain dynamic equilibrium an annular ring carrying adjustable balance weights 4 is provided inside the housing and this is mounted on a second universal coupling at 15. The balance system is coupled to shaft 11 through a sliding ball and socket joint 18 so placed that motion of the shaft causes opposite displacements of the reflector and balance ring. Springs 19 are connected between housing 9 and the reflector 1 and springs 20 between the balance system and the housing. The natural periods of vibration of the two spring systems thus obtained are arranged to be equal and the frequency of the drive is also made to he such that one rotation takes place in this period. This reduces the power required to drive the aerial. A flexible mounting may be introduced between the reflector and the housing to stiffen the system. Alternative ways of obtaining dynamic equilibrium are described with reference to Figs. 4 to 7 (not shown). The drive mechanism for-shaft 11 is described with reference to Fig. 8. Here the spiral scan drive motor 75 drives shaft 48 through gearing and this shaft in turn drives annular gear 44 which engages planet wheel 42 on shaft 62. The shaft 11 is coupled to the planet wheel through ball and socket joint 52. The movement of axis 62 of the planet wheel is also the movement of main shaft 43 which is driven from shaft 48 through pinion 50 and clutch 51. The conical scan is effected by energizing motor 53 which drives gear 44 through gear 60 and operating locking device 55 which causes a notch 63 to engage in socket 54 so that gear 44 and shaft 43 rotate together. Clutch 51 slips under these conditions and the speed and gearing of motor 53 is arranged so that the conical scan is at a higher speed than the spiral scan and wheel 47, which is constructed to " over-run " freely, will disconnect motor 75 even if this is still running. Generator 58 is arranged to provide an alternating reference voltage and switch 66 operated by cam 57 produces a changeover which can be used to resolve ambiguity in the reference signal.
Patent GB-706068-A (GB)
Title: Improvements in or relating to bottles and like containers and closures therefor
IPC: A61F7/08
Filed: 1952-01-28
Abstract: 706,068. Closures for hot-water bottles &c. FREEMAN, W. S. Dec. 16, 1952 [Jan. 28, 1952], No. 2316/52. Class 125 (3) The rubber closure 16, 17 of a container such as a hot water bottle 11 comprises a flexible hinging member 19 integral with the closure and received in an open-ended passage 12 through the thickness of the neck 10 of the container, the passage having an opening situated some distance down the outside of the neck. The closure is of the type described in Specification 516,731 and includes a skirt 17 to be folded down around the outside of the neck 10. The lower end of the passage 12 opens into a recesss 14 having an undercut stud 15 over which a perforation 20 on the flexible member 195 engaged after the flexible member has been pulled through the passage by a tool inserted in the lower end of the passage.
Patent GB-103873-A (GB)
Title: Improvements relating to the Treatment of Coal for use in Domestic Grates or Furnaces.
Inventor: ROLLASON ARTHUR
IPC: C10L9/10
Filed: 1916-02-17
Abstract: 103,873. Rollason, A. Feb. 17, 1916. Composition fuel.-To improve the combustion of coal, it is mixed with 1-2 per cent. of finely ground calcium carbonate or magnesium carbonate.
Patent GB-351471-A (GB)
Title: Strap for ties of package tying machines
IPC: B65D63/04
Filed: 1929-12-23
Abstract: 351,471. Bale ties. HARVEY, L. M., 1333, South Los Angeles Street, Los Angeles, U.S.A. Dec. 23, 1929, No. 2444/31. Divided on 351,974. [Class 94 (i).] A bale tie is made with a cross section as shown in Fig. 7, a central longitudinal zone lying substantially in the plane of the edges 21 curves gradually upwards at 22 and abruptly downwards to the edges. The cross section facilitates crimping in the formation of crimped end fastenings as shown in Fig. 2. The tie is adapted for use with, the machine described in Specification 351,974.
Patent GB-103368-A (GB)
Title: A Sealing Apparatus for Casks and the like.
Inventor: VAUGHAN ARTHUR ERNEST
IPC: B65D47/26
Filed: 1916-02-18
Abstract: 103,368. Vaughan, A. E. Feb. 18, 1916. Bungs.-The bung-hole or tap-hole, of a cask &c. is adapted to be closed by a cover 4, Fig. 2, which is pivoted to an externally-threaded metal fitting 1 and is pressed upon its seating by projections 6. The cover 4 is rendered air-tight by engagement with a bushing 3, or by means of a washer of wood, leather, vulcanite, &c. In a modification, Fig. 3, the cover 4 slides between guides 8 and has wedge-shaped projections 9 adapted to engage overhanging parts 6.
Patent GB-1509641-A (GB)
Title: Limb braces
IPC: A61F5/01
Filed: 1976-12-24
Abstract: 1509641 Limb brace SOCIAL SERVICES SECRETARY OF STATE FOR 24 Dec 1976 [22 Jan 1976] 02502/76 Heading A5R A limb brace having a lockable hinge joint comprises brace members 1, 2 connected by a clevis hinge 4-6 with the upper end of brace member 2 having a triangular abutment 7 for engagement with a similar abutment 12 within or alongside the bifurcated end of brace member 1. A spring biassed collar 8 normally locks the abutments 7, 12 but operation of a cam 13 raises the collar against its bias and allows the abutments to be pivoted away from each other. The cam is bistable and is operated by a handle 14 which aligns with the brace members both in the locked and unlocked position of the hinge.
Patent GB-633934-A (GB)
Title: Improvements in or relating to bearings
IPC: F16C33/08
Filed: 1948-01-28
Abstract: 633,934. Bearings. NAPIER & SON, Ltd., D., and TRYON, H. C. Jan. 28, 1948, No. 2558. [Class 12 (i)] A bearing comprises a member 12 which surrounds or partially surrounds a rotating part and has a concave recess 11 which extends over an arc subtending less than 180 degrees in the circumferential direction, and a thinwalled curved strip of bearing metal 10 which is a direct force-fit in the recess 11 between a pair of axially-extending abutments 15 at the ends of the recess. An undercut recess 14 is formed adjacent each abutment 15. The bearing strip 10 is provided with an arcuate lubricating groove 18 and apertures 20 co-operatirig with lubricating grooves 19 in the member 12. The abutments may converge in the direction of insertion of the bearing strip. The force-fit may be accomplished by heating one of the members. In a modification, the end abutments may be formed by ribs integral with and formed on the surface of the member 12. In a further modification, the abutments are formed by members 24 fitting in semi-dovetail grooves in the backing member 22.
Patent GB-432637-A (GB)
Title: Process for the production of condensation products
IPC: C08G14/08
Filed: 1934-01-25
Abstract: Condensation products are prepared by condensing 1 molecular proportion of a phenol, 1 to 2 molecular proportions of urea and 2 to 4 molecular proportions of an aqueous acid formaldehyde solution of pH value below 3 in the presence of such a quantity of hexamethylenetetramine that the reaction mixture is acid.  The hexamethylenetetramine may be added as a whole or in parts, or it may be prepared from ammonia and formaldehyde added separately. In place of urea there may be used mixtures thereof with other compounds that react with formaldehyde such as thiourea, urethane, formamide, acetamide and oxamide.  Phenols such as phenol, cresol, or polyhydroxy phenols may be used.  In examples phenol or m-cresol, urea, hexamethylenetetramine, and formaldehyde are condensed with or without the addition of thiourea, urethane, acetamide, formamide, oxamide or other acid amides in the presence of oxalic or hydrochloric acids.  The products may be worked up with fibrous or filling materials such as cellulose. Specification 432,359 is referred to.
Patent GB-835835-A (GB)
Title: Process and apparatus for vaporizing liquids
IPC: B01D1/00
Filed: 1958-01-27
Abstract: <PICT:0835835/III/1> A process for the vaporization of liquid iodine or an aqueous solution containing hydrogen iodide or iodine comprises supplying the liquid to a porous bed of refractory bodies and contacting therein with hot gases, the rate of liquid supply to the bed relative to the rate of supply of hot gases being such that only part of the liquid is vaporized, the portion remaining unvaporized being recirculated to the beds.  The liquid is preferably trickled through the bed in counter-current flow to the hot gases, the refractory bodies consisting of stones, bricks or ceramic chips.  The lining may be made of acid-resistant brick or stone or monolithically cast stoneware, such as silicon carbide or fused kaolin.  In one embodiment, the apparatus consists of an outer metallic shell 5 lined with bricks 6 and containing a porous bed of bodies 7 supported by an arch 8.  The top of the chamber is covered by a head 9 having a lining 10.  The liquid to be vaporized is admitted through an inlet pipe 11 connected to a perforated distributing ring 13 and flows by gravity over the surfaces of the refractory bodies.  Fuel such as gas is admitted through a pipe 16 and is mixed with oxygen from a pipe 18 and is burnt in a burner 20, the resulting hot gases causing the evaporation of the liquid.  The vaporized liquid and partially cooled combustion gases leave through the opening in the head 9. In a modification (Fig. 3, not shown) the vaporizer is mounted at the top of a down flow tube, the vaporized liquid leaving by the bottom of the apparatus.  In a further modification (Fig. 4, not shown) the vaporized liquid passes up through a central lift tube and impinges upon a member which has a concave lower surface.  The vaporizer may be provided with a heating coil made of tantalum.
Patent GB-180717-A (GB)
Title: Improvements in and connected with ampoules and the like
IPC: A61J1/06
Filed: 1921-01-21
Abstract: 180,717. Macpherson, A. Jan. 21, 1921. Pumps, syringes, and like appliances.-An ampoule or the like A from which the contents may be withdrawn by suction through a hypodermic needle is formed with a funnel-shaped end B closed by a film C of gelatine, collodion &c. adapted to be punctured by the needle and preferably self-sealing on withdrawal thereof.
Patent GB-1122093-A (GB)
Title: Improvements relating to flow control valves
IPC: F16K3/18
Filed: 1966-01-20
Abstract: 1,122,093. Valves. LEYBOLD HOLDING A.G. 20 Jan., 1966 [22 Jan., 1965], No. 2736/66. Heading F2V. A valve controlling communication between pipes 2, 3, each of which is connectable to high vacuum or atmosphere, comprises a pair of closure discs 5, 6 carried by spindle 8 and cooperating with seats 11, 12, the casing 1 being connected to a vacuum pump 9 at least when the discs are seated to allow one of the pipes to be evacuated whilst the other pipe is at atmospheric pressure. A valve may control communication between casing 1 and pump 9, such valve being controlled by the movement of the closure discs. Bellows 7 seals the entry of spindle 8.
Patent GB-844925-A (GB)
Title: Improvements in or relating to implement-attaching means for tractors
Inventor: REECE ALAN RICHARD
IPC: A01B59/00
Filed: 1956-01-27
Abstract: 844,925. Power-lift linkages. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN Ltd. Nov. 16, 1956 [Jan. 27, 1956], No. 2750/56. Class 79(1). A three point implement attaching powerlift linkage for a tractor comprises an upper link 1 which may be telescopic, Figs. 1, 3, and a pair of lower links (Figs. 4, 5 not shown), each being reversible and having at one end a swivelling bush of dimensions suitable for the connection of a small (category one) implement, and at the other end a swivelling bush suitable for the connection of larger (category two) implements. The link 1 may be pivoted by either of pins 12, 17. between lugs 10, 11 on the tractor, the pin 12 being passed through the bush 4 and the lugs when' a small implement is. to be attached to the bush 8, and the pin 17 being used when a large implement is to be attached to the bush 4. The pin 12 has its major length of a large diameter to fit within the bush 4 and the'lug 11 on the tractor, the smaller diameter portion 15 of the pin 12 fitting within the lug 10. A cotter pin 13 through a hole 16 secures the pin 12 in position. The pin 17 has a minor portion 21 of large diameter, and a major portion 18 of small diameter, and may be fitted so that the portion 21 passes through the lug 11, and the portion 18 passes through the bush 8 and the lug 10 and is held by a cotter pin 19. The lower links which are also reversible have their bushes fitting over hitch pins on the tractor, sleeves being necessary between the hitch pins and the bushes only when the larger bushes of the links are fitted thereon. The lower links are cotter pinned in position as before and are provided with holes for the attachment of lift links. In a modification the pin 12 may be the same as the pin 17 and may be used in conjunction with a spacer sleeve to take up diametrical clearance between the pin and the bore 5 of the larger bushing 4.
Patent GB-961891-A (GB)
Title: Polyglycol epoxide-amine condensate
Inventor: BRESSLER WILBUR LEE
IPC: C08G59/18
Filed: 1962-01-25
Abstract: A flexibilising curing agent for epoxy resins is prepared by reacting a diglycidyl ether of a polyoxyalkylene glycol with more than an equimolecular proportion of a polyamine having at least two amino hydrogen atoms.  Suitable polyamines are ethylenediamine, propylenediamine, diethylenetriamine, dipropylenetriamine N1N11-bis (2-cyanoethyl) - diethylenetriamine, trialkylene tetramine, tetra-alkylenepentamine, and their N-substituted derivatives, e.g. N,N1, N11, N111-tetra (2 cyanoethyl)-triethylenetetramine.  The diglycidyl ether may be of a polyoxyethylene glycol, polyoxypropylene glycol, or polyoxybutylene glycol, or of mixed polyoxyalkylene glycols, or of a polyoxyalkylene glycol containing two or more different oxyalkylene groups.  Examples are given of the preparation of curing agents according to the invention and of their use to cure epoxy resins.
Patent GB-882786-A (GB)
Title: Automatic electrical system for cabin pressurization
IPC: G05D16/20
Filed: 1958-01-28
Abstract: 882,786. Automatic control systems for cabin pressurization. KOLLSMAN INSTRUMENT CORPORATION. Jan. 28, 1958 [March 19, 1957], No. 2810/58. Class 38 (4). [Also in Group XXXVIII] In an automatic cabin pressure control system, an exhaust valve is positioned in dependence on the cabin pressure, rate-of-change of cabin pressure and the difference between the cabin pressure and outside air pressure. As shown, the output of a transducer 102, developed when the cabin pressure deviates from a predetermined value, is opposed by the output of a transducer 104, developed when the difference between the cabin pressure and the outside air pressure exceeds a predetermined value. The difference between the outputs of transducers 102, 104 is added to that of a transducer 100, developing an output proportional to the rate of change of cabin pressure. The total output of the transducers is applied to the input of an amplifier 126 energizing the coils 142, 158 of a centre-biased sensitive relay which controls, through a power relay, the supply from a source 92 to a motor 76 which positions an exhaust valve 72 .through gearing 78, 80. A field 86 or 88 of the motor 76 is energized through the relays so that the valve is positioned so as to maintain the cabin pressure constant except when the pressure differential between the cabin and outside air exceeds the predetermined value. A change in cabin pressure, occasioned by an alteration in the setting of the transducer 102, is controlled at a predetermined rate by the transducer 100. The transducers '(see Group XXXVIII) comprise diaphragm capsules moving a yoke to vary the air-gaps between the yoke and an armature carrying bridge-connected coils energized from an alternating current source 106. The cabin pressure is manually adjusted by energizing the motor 76 through a switch 96 and increase and decrease pressure buttons 93, 94 from a source 90. Lowering of the landing-gear actuates a switch 170 to energize the motor 76 from the source 90 to restore the cabin pressure to atmospheric at a controlled rate.
Patent GB-740467-A (GB)
Title: Improvements in current transformers
IPC: C07D207/34
Filed: 1953-02-02
Abstract: 740,467. Transformers. FOSTER TRANSFORMERS, Ltd., COURTNEY, T., and GREEN, A. H. Feb. 2, 1954 [Feb. 2, 1953], No. 2880/53. Class 38 (2). To increase the accuracy of the transformation ratio of a current transformer an auxiliiary winding is provided on the transformer which winding is divided into a number of sections 4 ... 9 which sections are permanently connected together-preferably in parallel-but which have no electrical connection to any external circuit. Thus the flux in different parts of the core 1 is equalized irrespectively of whether or not a primary element 12 is asymmetrically placed with regard to a secondary winding 2.
Patent GB-866622-A (GB)
Title: Method of recovering gelatin
IPC: C09H3/00
Filed: 1959-01-27
Abstract: Gelatin is recovered from a gelatin charge stock by irradiating the stock with ionizing penetrating radiation and extracting the gelatin from the irradiated stock.  The stock may be in a substantially dry form and may comprise lime splits, tanners stock, pig, buffalo, camel and rabbit skin, or ossein.  The ionizing penetrating radiation is defined as being beta and gamma rays.  Beta rays include cathode rays and gamma rays, which may be emitted from cobalt-60, include X-rays. The radiation may have an energy f 10-3 to 15 Mev and the dose thereof may exceed 0,5 x 106 REP e.g. 0,5 to 1,5 x 106 REP.
Patent GB-1359416-A (GB)
Title: Wheel and pneumatic tyre combination
IPC: B60B21/10
Filed: 1972-01-21
Abstract: 1359416 Vehicle wheels and tyres D C BLANCHARD 24 Feb 1972 [17 Jan 1972 21 Jan 1972 5 Feb 1972 15 Feb 1972] 2149/72 2977/72 5438/72 and 6907/72 Heading B7C The combination of a wheel and a tyre, the latter comprising a flat-section tread band 1 and frusto-conical side walls 2 which when under stress do not protrude beyond the width of the tread, the sidewalls being thickened at 3 where they meet the tread or the tread having lateral extensions, which thickenings or extensions protect the tyre during impacts with kerbs. The wheel has flanges 5 over which the sidewalls roll when the tyre is under stress. The tyre may be symetrical as shown, or asymmetrical with one conventional sidewall and one frustoconical sidewall.
Patent GB-1021727-A (GB)
Title: Steerable reflector antenna system
IPC: H01Q25/00
Filed: 1964-01-23
Abstract: 1,021,727. Aerials. GRANGER ASSOCIATES. Jan. 23, 1964 [Feb. 4, 1963], No. 3020/64. Heading H4A. An aerial system consists of a central omnidirectional aerial element 1 surrounded by a plurality of mutually spaced reflectors 11 and control means for selectively activating and deactivating the reflectors to effect direction switching or steering of the system. In the embodiment shown the aerial element 1 consists of a metallic dome 4 on a guy-wire-supported post 2 and has round its periphery a number of radiating elements 5 which extend to a metal base member 7 insulatingly supported on a ground plate connected to wires 9 forming a ground plane. The aerial element is fed by a coaxial feeder 10. Reflector wires 11 supported by posts 17 are disposed in square formation round the element 1 and each wire may be split up into a number of ineffective lengths by a series of vacuum switches (Fig. 4, not shown), operated through a mechanical linkage by a cam driven by an electric motor (Figs. 3A and 3B, not shown). The motors are controlled from an operator's console (not shown) as required so that sets of reflectors 11 may be activated simultaneously or in any sequence or group sequence to make the aerial receive or transmit in a particular direction or to achieve scanning of the aerial. For example, if all reflectors 11 along one side of the square formation are formed into continuous lengths by the switches and the remainder are deactivated by breaking them down into shorter lengths then the aerial 1 will be most sensitive to signals received from the direction opposite the activated reflectors (Figs. 2A, 2B, 2C, not shown). In two other embodiments the short lengths of the reflectors are formed into the effective longer length by electromagnetic relays (Fig. 5, not shown), or by germanium rectifiers (Fig. 6, not shown). In another embodiment (Fig. 9, not shown), the reflectors are formed by pairs of wires suspended from four catenery wires in square formation. In another embodiment the reflectors are in an octagonal formation round the aerial element 1 (Fig. 8, not shown). The system shown is suitable for wide-band operation and in another embodiment (Fig. 7, not shown) two concentric circular arrays of reflectors are used which may be used simultaneously to increase the frequency range of the system.
Patent GB-546436-A (GB)
Title: Improvements in or relating to the preservation of wood
IPC: B27K3/32
Filed: 1941-03-06
Abstract: 546,436. Preserving wood. ELECTRICAL RESEARCH PRODUCTS, Inc. March 6, 1941, No. 3084. Convention date. March 13. 1940. GClass 140] A wood preservative comprises an aqueous solution of chromic acid, arsenic acid and copper hydroxide, carbonate, oxide, chromate, dichromate or arsenate in such proportions that all the compounds formed after reaction in the wood are water insoluble. Arsenic acid may be omitted and the copper compound may be replaced by the equivalent weight of zinc, nickel, cobalt or barium hydroxides, carbonates, oxides, chromates, dichromates or arsenates. A typical solution is made by mixing chromium dioxide 15 parts, arsenic pentoxide 5 parts and copper cyanide 6 parts in water 300 to 3,000 parts. Impregnation may be effected by brushing or spraying, by dipping in open vessels or by using the " full cell " or " empty cell " process.