baber/WOPTO huggingface dataset:
Patent GB-386657-A (GB)
Title: Improvements in or connected with the construction of spars or girders particularly applicable for use in aircraft construction
IPC: B64C1/08
Filed: 1931-07-17
Abstract: 386,657. Aircraft framework. VICKERS (AVIATION), Ltd. and WALLIS, B. N., Byfleet Road, Weybridge, Surrey. July 17, 1931, No. 20510. [Class 4.] Aircraft spars, ribs, and girders of the type comprising three or more tubular booms stayed apart by diagonal members extending in a continuous zig-zag formation from end to end of the structure and secured to the booms by gusset plates have the diagonal staying members between adjacent booms so arranged that the apex of the V formed by the diagonal members reaching any given boom from one of its neighbours will lie approximately midway on that boom between the points at which it is intersected by the legs of the V formed by the diagonal members reaching it from its other neighbour. The invention is described with reference to a wing spar of the general type described in Specification 334,405, [Class 4, Aeronautics], comprising a number of bays of pyramidal form. In each bay, booms 30 .. 33 are secured to one another by diagonal bracing members 11 attached by gusset plates 10. In the middle of each boom section, pairs of gusset plates 10 secure two'diagonals 11. At the end of each section single U-shaped gussets 40 secure one diagonal only. The base of the U-plate abuts against the end of the boom section and is cut away to allow for the presence of means for securing adjacent lengths of the spar which may comprise externally threaded ferrules engaging threaded strengthening sleeves of the type described in Specification 334,405, or near the wing root where thicker booms may be employed the boom sections may be externally threaded and connected by internally threaded collars, in which case the U-shaped gussets are replaced by gussets similar to those shown at 10 and secured to either side of the collar. The diagonals 11 may be of the type described in Specification 376,364 and the spar may be assembled in the manner described therein. Cross ribs 38, Figs. 1 and 2, are connected to plates 39 clamped between adjacent boom sections, to which plates are also attached rib members 43. Ribs 38 comprise angle-section members 42 interconnected by cross bracings, and rib members 43 comprise thin tubes united by diagonal members 44 and gusset plates 45. Torsion stays 46 and stay wires 47 may also be attached to plates 32. The gusset plates 40 may be of progressively lighter construction towards the tip of the spar.
Patent GB-1203143-A (GB)
Title: Boiling apparatus for continuous crystallization and method of operating said apparatus
IPC: C13B30/02
Filed: 1968-04-30
Abstract: 1,203,143. Evaporators; crystallization of sugar. ATELIERS BELGES REUNIS S.A. 30 April, 1968 [2 May, 1967], No: 20517/68. Heading B1B. An evaporator for producing uniform crystals from a solution, e.g. of sugar, comprises an elongated, generally horizontal chamber 1 which has a downwardly-inclined bottom and increases progressively in cross-sectional area from end A to end B, and is provided with a heat exchanger 12 formed by a series of vertical transverse walls connected in pairs by vertical longitudinal walls of relatively small width, the area of heating surface per unit length of chamber increasing from end A to end B. The interior of the heat exchanger is supplied with steam from source V. Sugar solution is introduced into chamber 1 through tubes 3 1 .. 3 7  and seed crystals are supplied through tube 5. A suspension of crystals in boiling solution ascends the vertical passages 18 through the heat exchanger on one side of the chamber, and the solution descends on the other side, so that the suspension advances in a helicoidal path from end A to end B. The grown crystals suspended in solution are discharged through conduit 7. Vapours are discharged through orifice 19, which may be connected to a condenser and vacuum pump. The sugar solution may be boiled at a temperature of 70C. In a modified evaporator, the chamber I is divided into compartments by transverse partitions having openings, and the steam chamber of the heat exchanger is divided into two sections each connected to the steam source by a separate valve-controlled line. The bottom of the evaporator chamber and the side near which ascending movement of the suspension occurs are provided with a heating jacket.
Patent GB-1205433-A (GB)
Title: Gaiters for electrical connectors
Inventor: MATTHEWS BENJAMIN WILLIAM
IPC: H01R13/53
Filed: 1967-05-03
Abstract: 1,205,433. Two-part couplings. JOSEPH LUCAS (INDUSTRIES) Ltd. 27 March 1968 [3 May, 1967], No. 20556/67. Heading H2E. A housing 15, for a connector adapted to mate with a socket contact 12 on the distributer cap of an I.C. engine, is moulded in resilient waterproof insulating material such as rubber or p.v.c., and comprises two portions 16, 17 each having an internal bore formed with a circumferential groove 18, 19 to prevent ingress of moisture when portions 16, 17 are in tight surrounding relation with a cable 14 and an insulating sleeve 11 of the distributer cap respectively. Additional grooves, parallel to 18, 19, may be provided. A shoulder 21 in portion 17 abuts the end of sleeve 11 in use, so limiting the distance of insertion of plug connector contact 13 in contact 12.
Patent GB-704188-A (GB)
Title: Improvements in or relating to film materials
Inventor: CHALLIS KENNETH JOHN
IPC: G03C1/93
Filed: 1951-09-01
Abstract: 704,188. Photographic film materials. ILFORD, Ltd. Aug. 18, 1952 [Sept. 1, 1951], No. 20679/51. Class 98(2) [Also in Group VIII] To secure adequate adhesion between a gelatin, dyed or pigmented gelatin, gelatin-bichromate; or gelatino-silver halide emulsion layer and a support made of or coated with (a) a copolymer of vinyl chloride and vinylidene chloride with each other or either of these singly or together with other polymerizable materials such as vinyl'acetate or acetal, butadiene, methyl methacrylate, acrylonitrile or a maleate, the surface. of any of these copolymers is coated successively with a layer (b) of polyvinyl ester or alkyl methacrylate polymer, a layer (c) of nitrocellulose or else (b) and (c) in admixture, and a layer (d) of modified gelatin applied from dispersion in organic solvent. Four examples describe the coating of sheets of clear polished polyvinyl chloride methyl methacrylate copolymer and vinyl chloride-vinylidene chloride copolymer with (b) polyvinyl acetate or methyl methacrylate polymer. (c) nitrocotton, (d) gelatin-salicylic acid applied in a solvent of a mixture of methanol, acetone and ethyl lactate with a small proportion of water; and then a gelatino-silver bromide emulsion. A gelatin emulsion layer or a gelatin layer of a developed and finished kine film may be coated with the several layers in reverse, as (d), (c), (b), and (a) for protective purposes. Specification 617,129 is referred to.
Patent GB-1475142-A (GB)
Title: Protecting an electronic switching arrangement
IPC: H03F1/42
Filed: 1974-05-10
Abstract: 1475142 Overcurrent protection R BUCK 10 May 1974 [22 June 1973] 20689/74 Heading H2K Overcurrent through an electronic switch 12 controlled by a transducer 10, 11 triggers a thyristor 18 responsive to the volt drop across a resistor 13, the thyristor 18 thereupon turning off the switch 12 either directly, by shunting the control electrode voltage, or indirectly, by disabling the transducer, and being maintained conducting even after the switch 12 has been turned off, e.g. by providing a constant current path 31 shunting the switch. The transducer 10, 11 may be an oscillator, bridge, photosensitive or field senstive device whose power supply 15 is derived from the volt drop across a Zener diode and which may be disabled either by applying a signal to a disabling input of the transducer or, as shown, by shorting its power supply. The arrangement can be reset by removing the main power supply, a capacitor 32 preventing resetting in response to transients.
Patent GB-203316-A (GB)
Title: Improvements in or relating to wireless receiving apparatus
IPC: H04B1/16
Filed: 1923-08-14
Abstract: 203,316. Compagnie pour la Fabrication des Compteurs et MatÚriel d'Usines Ó Gaz., (Assignees of Soc. des Etablissements Decretet). Sept. 4, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Thermionic amplifiers and detectors.-Noises due to feeding the filaments with alternating current and the plate circuits with rectified alternating current, are considerably reduced by combining with the receiving system a high frequency generator. As shown the valves 1, 2, 3 constitute an ordinary amplifier-detector and the final valve 3 is arranged to generate oscillations. Any one or any pair of valves used in the receiving system may be used to generate the oscillations or they may be generated by one or more additional valves.
Patent GB-979643-A (GB)
Title: Improvements in thermal time delay electric relays
IPC: H01H61/02
Filed: 1961-06-08
Abstract: 979,643. Thermal switches. CURTISSWRIGHT CORPORATION. June 8, 1961 [June 13, 1960], No. 20829/61. Heading H2B. A thermal time delay relay comprises a thin low mass, high tensile strength, thermally responsive strip 5, which may be stainless steel having a high temperature coefficient of expansion and which is under tension by being directly coupled at each end to a more rigid and massive temperature-compensating member 3 of the same material. A heater 7 is wound on a mica former 8 insulatedly mounted on the strip 5 by a mica sheet 8a, and when energized causes the strip 5 to elongate, thus decrease the concavity of the member 3 and thus move the contact 1 into engagement with a fixed but adjustable contact 2. Snap action of the contacts may be achieved by allowing the member 3 to actuate a microswitch. The compensating member 3 has its main intermediate portion dished so as to be concave with respect to both axes of the strip 5 and from which it is spaced. The relay may be sealed into a metal case (not shown) and an externally operable adjusting member for the fixed contact 1 may be carried by a leaf-spring, which projects through a flexible end wall of the case.
Patent GB-582140-A (GB)
Title: Improvements in and relating to ventilating apparatus
IPC: F24F13/075
Filed: 1943-12-13
Abstract: 582,140. Ventilators. WOODS of COLCHESTER, Ltd., and DALY, B. B. Dec. 13, 1943, No. 20831. [Class 137] In a ventilating unit comprising a motor and fan mounted in a tunnel in a wall, with a fixed louvre 1 protecting the fan from weather and a non- return louvre with hinged slots 5 which close to prevent draught when the fan stops, the fixed and non- return louvres are juxtaposed and the latter which is preferably streamlined is designed to open to slant the angle of the fixed louvre and direct the air with minimum shock and loss of speed. The fixed slats may serve as stops for the hinged slats on the back of which rubber strip may be mounted to prevent chatter. The non-return louvre may be annular and occupy the space between fan motor and tunnel.
Patent GB-1270292-A (GB)
Title: Method for obtaining bars of polymethyl methacrylate
Inventor: MIHAILESCU CONSTANTIN ALEX
IPC: B29C33/40
Filed: 1969-04-23
Abstract: 1,270,292. Making polymethyl methacrylate bars. RUMANIA MINISTERUL INDUSTRIEIUSOARE MINISTER OF. 23 April, 1969, No. 20833/69. Heading C3P. Polymethyl methacrylate bars are prepared by prepolymerizing methyl methacrylate monomer to a monomer conversion of from 40-50% at a temperature of 80-90‹ C., and thereafter completing polymerization of the resulting prepolymer in a water-permeable, bar-shaped cell made of plastics material, the cell being immersed in water at a temperature of about 20‹ C. (e.g. 18-20‹ C.). The cell may be formed from porous polyethylene or cellulose acetate. In an example, the prepolymerization is effected with azoisobutyronitrile initiator, and polymerization is completed using a benzoyl peroxide/dimethyl aniline/cobalt naphthenate initiator system.
Patent GB-186218-A (GB)
Title: Improved apparatus for cooling or heating liquids
IPC: F28D3/00
Filed: 1921-08-05
Abstract: 186,218. Lebeau, G. L. Aug. 5, 1921. Cooling liquids indirectly within casings or chambers. - A liquid to be cooled is admitted through holes 5, 6 in a tubular crown 4 so that it is distributed and flows in a film down the walls of a fluid-tight chamber 3 constituted by two cylindrical or other receptacles of similar shape 1, 2 fitting one into the other, the inner one containing and the outer one being immersed in gaseous, liquid or solid substance at a temperature lower than that of the liquid being treated.
Patent GB-1141492-A (GB)
Title: Cyclic thioether compounds and a process for their preparation
IPC: C07D339/00
Filed: 1965-05-18
Abstract: 1,141,492. Cyclic thioethers. DUNLOP CO. Ltd. (F. K. Lautenschlaeger). 10 May, 1966 [18 May, 1965], No. 20884/65. Heading C2C. Novel chlorinated cyclic thioethers of the formula wherein A is a sulphur or oxygen atom and each of the R radicals is a hydrogen atom, an alkyl group, a cycloaliphatic group or an aralkyl group, are prepared by reacting diolefins of the formula C(R 1 R 2 ) = CR 3 -C(R 4 R 5 )-A-C(R 6 R 7 )- CIR 8  = C(R 9 R 10 ) with sulphur chloride compounds having an atomic ratio of sulphur to chlorine of not greater than 1:1. The compounds may be converted to other cyclic thioether derivatives by treatment with reagents which effect replacement of the chlorine atoms.
Patent GB-483444-A (GB)
Title: An improved fruit grading apparatus
IPC: B07B13/00
Filed: 1937-07-29
Abstract: 483,444. Separating solid materials. LESLIE, G. M. July 29, 1937, No. 20976. [Class 117] Fruit-grading apparatus comprises two or more superposed horizontal apertured trays slidable horizontally in an enclosing framework, the apertures in the successively lower trays progressively decreasing in size and increasing in number so that the apertures in successive trays are staggered. In the form shown, a number of metal trays 1 with stamped out apertures 7 decreasing in size towards the lowest tray are slidable on guides 2 in the framework 3. Stops 5 are provided to prevent removal of any except the upper trays and thus prevent interchange of the trays.
Patent GB-703575-A (GB)
Title: A driving mechanism for tape or wire record carriers
IPC: H02K17/30
Filed: 1951-09-05
Abstract: 703,575. Control of A.C. motors. LICENTIA PATENT-VERWALTUNGS GES. Sept. 5, 1951 [Feb. 9, 1949], No. 20978/51. Drawings to Specification. Class 38(3) [Also in Group XXXVIII] An A.C. driving motor for operating a winding reel, in order to wind a tape or wire thereon, has a direct current superimposed on its alternating supply in -order to produce a velocity torque characteristic which will maintain the pull on the record member approximately constant while the latter moves at a constant speed even though the diameter of the roll of record on the reel varies. The desired characteristic is hyperbolic in shape. The effect of a superimposed D.C. field can be obtained by placing a rectifier in series with the motor and a condenser in parallel. A separate winding may alternatively be provided energized by a D.C. source. The motor may be of the squirrel cage type.
Patent GB-424768-A (GB)
Title: Improvements in heading tape for curtains and the like
IPC: A47H13/16
Filed: 1933-07-28
Abstract: 424,768. Curtain heading - tape. FRENCH, G. F., Chester Road Mills, Hulme, Manchester. July 28, 1933, No. 21208. [Class 52 (v)] [See also Group IX] A curtain heading-tape has one or more rows of tubular suspension straps or loops on one or both faces through which the drawcords slidably extend, each suspension hook or ring engaging a strap or loop. The tape comprises a back part a having on its front face a series of evenly-spaced round tubular loops b interwoven at their ends with the tape a. A drawcord c introduced during the weaving operation extends slidably through the tubes and passes through the back part a and across the rear face of the tape before entering the next tube. The loops may be double chambered, Fig. 10, a drawcord c passing through each chamber. Instead of passing across the rear face of the tape between the loops the cord may pass out and across the front face, or may pass through the intermediate parts of the tape. Fig. 13 shows loops b on both sides of the tape.
Patent GB-727306-A (GB)
Title: Improvements in rubber hydrochloride film
IPC: C08K5/06
Filed: 1953-07-31
Abstract: Rubber hydrochloride film containing more of a solid dialkyl ether than will dissolve in the unstretched film is stretched until the ether completely dissolves.  The ethers may be didodecyl ether, ditetradecyl ether, dioctadecyl ether and ethers having twenty or more carbon atoms in each alkyl group.  The alkyl group may be straight chain or branched chain.  Preferably about 1 to 1.5 per cent. of the ether is added and the film is slowly stretched until the surface area is increased about fourfold. Plasticizers which may be added are dibutyl phthalate dihydro methyl abietate, tritolyl phosphate, ethyl diphenyl phosphate, dibutyl phenyl phosphate, 2-ethylhexyl-diphenyl phosphate, trimethoxymethyl phosphate, trimethoxyethyl phosphate, tripropoxy-butyl phosphate, diisobutyl adipate, octyldecyl adipate, dioctadecyl adipate, diisoctyl adipate, di (2-ethylhexyl) adipate, dipropyl sebacate and dibutyl sebacate. In addition the solubility of the ether may be increased by adding a hydrogenated triphenyl, a chlorinated paraffin or a coumarone indene resin.  Specification 726,500 is referred to.
Patent GB-413499-A (GB)
Title: Improvements in spark plugs
IPC: H01T13/14
Filed: 1933-07-28
Abstract: 413,499. Sparking -plugs. ERNY, C. G., 1808, W. Cheltenham Avenue, Philadelphia, U.S.A. July 28, 1933, No. 21274. Convention date, March 6. [Class 7 (iv).] The chamber 16 containing the spark-gap communicates with the cylinder by two sets of passages leading from the bevelled surface 19. One set 21 penetrates to the space 16 in the neighbourhood of the lower edge of the conical surface 23, its axes being directed away from the spark-gap. The other set of passages is directed towards the insulator seating. Interengaging ribs and recesses are formed on the gasket 9 and the adjacent surfaces of the insulator and casing. A gasket of bevelled cross-section is used beneath the gland 3.
Patent GB-597142-A (GB)
Title: Improved feed water regulating apparatus for steam boiler installations
IPC: F22D5/24
Filed: 1945-08-20
Abstract: 597,142. Feedwater regulators for steam boilers. LINDSAY, T. Aug. 20, 1945, No. 21284. [Class 123 (ii)] [Also in Group XXIX] In a power station installation comprising one or more steam boilers a with superheater a', each boiler having a feed water pump d which is driven by an electrometer h, through a hydraulic coupling i, and is connected to the boiler, through a feed line e including a feed-water heater f and economiser g, the gear ratio of the said coupling is varied to maintain the pump delivery pressure substantially constant and subject only to variation in accordance with the output of the station as determined by an associated turbo-generator b, c. In the form shown adjustment of the hydraulic coupling is effected by a leak-port regulator comprising a lever j which is pivoted at k and is subjected to the pump delivery pressure, acting upwardly through a line n and bellows m, and a downwardly acting solenoid q, energised by the alternator c through a transformer u, t and rectifier s, the lever j adjusting the opening of a leak-port p from which lowpressure fluid from an independent source is discharged after passage through a diaphragm valve w coupled to the controlling valve 1 of said coupling.
Patent GB-264752-A (GB)
Title: Improvements relating to the control pedals of motor road vehicles and the like
IPC: G05G1/487
Filed: 1926-08-31
Abstract: 264,752. Pomfret, R. T. C. Aug. 31, 1926. Treadle mechanism. -An. extension piece which can be temporarily attached to the control pedal of a motor vehicle for the convenience of a short driver is constructed with its face g a substantial distance in advance of the pedal plate and with a slotted attachment clip b<1> adapted to be. slipped over the pedal lever h behind the pedal plate.
Patent GB-169058-A (GB)
Title: Improvements in connection with the construction of theatre and like stages or platforms
IPC: A63J1/00
Filed: 1920-07-16
Abstract: 169,058. Cinema Combine, Ltd., and Jones., F. July 16, 1920. Stages, construction of.-Relates to a stage the area of which can be varied to adapt it for the exhibition of film pictures, concerts, &c., or dramatic performances. The main stage a is formed with lateral extensions on which are mounted pivoted flaps b which can be moved forward or pushed back under the main stage. An auxiliary stage e is fitted under the main stage, but can be drawn forward to enlarge the area of the stage. When the auxiliary stage is in its forward position the flaps are brought forward against it. The Figure shows at the right hand the stages b, e drawn forward and at the left hand, these stages pushed back.
Patent GB-638376-A (GB)
Title: Improvements in tools for welding non-metallic thermoplastic materials
IPC: B29C65/10
Filed: 1947-08-07
Abstract: 638,376. Seaming non-metallic sheet material. UDYLITE CORPORATION. Aug. 7, 1947, No. 21535. Convention date, April 16, 1943. [Class 42 (i)] [Also in Group XI] A welding tool for welding together two abutting sheets 18, 19 of non-metallic thermoplastic material by the method described in Specification 637,881 comprises a torch (see Group XI] having a nozzle 3 adapted to direct a hot gaseous blast against the surfaces of sheets 18, 19 adjacent said edges as the tool is moved along said edges, a guide 21 associated with the torch and terminating adjacent said nozzle for guiding a thermoplastic weld strip 20 into the gaseous blast and over said edges to weld together the two sheets and the strip, and pressure means in the form of a roller 27 for pressing strip 20 into welding relation with sheets 18, 19. The tool is supported on rollers 14, 15 which serve to hold the edges of the sheets flat during welding.
Patent GB-1096303-A (GB)
Title: Improvements in or relating to the extrusion of composite bodies
Inventor: ORMEROD LESLIE ROY
IPC: B21C23/22
Filed: 1964-05-25
Abstract: 1,096,303. Extruding. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 12, 1965 [May 25, 1964], No. 21576/64. Heading B3P. [Also in Division G6] In the extrusion of a composite slug, the latter comprises at least two components having therebetween a layer of bond assisting material which shatters under the extrusion deformation. The slug is used for producing nuclear fuel elements and has an outer and inner sleeves 1, 2, Fig. 1, of aluminium or aluminium alloy and a fuel core 3 of uranium aluminium alloy. Before assembly the radiused shoulders 4, 5 of the sleeves are anodized in a bath of chromic acid to provide an anodic layer which shatters during extrusion. Alternatively the whole of the contacting surfaces of the sleeves may be anodized. The composite slug is then washed and dried, swaged and de-hydrated in a vacuum or in air when the slug is wrapped in aluminium foil. The fuel core may consist of segments 7, 8, Fig. 3 (not shown), separated by segments 9, 10 of aluminium which are divided longitudinally after extrusion to provide arcuate sheathed elements which are subsequently rolled flat. Reference is made to anodizing in sulphuric acid.
Patent GB-1189527-A (GB)
Title: Method and Apparatus for Randomly Doffing Bobbins from a Textile Machine
IPC: D01H9/10
Filed: 1967-03-09
Abstract: 1,189,527. Doffing and donning apparatus. LEESONA CORP. 9 March, 1967 [14 March, 1966], No. 21760/68. Divided out of 1,189,521. Heading D1D. The description is the same as that with reference to Figs. 1-25 and 30-32 of Specification 1,189,521, but the claims are directed to a method of, and apparatus for utilizing a signal to initiate the doffling of bobbins in random fashion while the other stations of the frame continue in operation. The term "doffing" is defined as including the removal for piecing of a part-wound bobbin from its support and returning it after piecing as described with reference to Figs. 33-50 of Specification 1,189,521.