baber/WOPTO huggingface dataset:
Patent GB-785606-A (GB)
Title: Improvements in or relating to louvre ventilators
Inventor: JENKINS GWYNFOR
IPC: B60P3/36
Filed: 1953-02-23
Abstract: 785,606. Ventilators. PEARMAN BRIGGS, Ltd. Feb. 22, 1954 [Feb. 23, 1953] No. 4937/53. Class 137 A louvre ventilator (e.g. for a vehicle) comprises a frame 10 adapted to fit into an opening 12 in a wall 11, e.g. of a caravan, and accommodating an adjustable louvre panel 14, an external canopy 22 being secured by screws 26 to the external surface of the wall around the opening 12. The ventilator is made by pressing, or moulding, a light gauge transparent material, e.g. polyvinyl chloride, or acrylic resin. The frame 10, converging outwardly to enable it to be pressed easily into the opening 12, has an outwardly turned flange 15 along its inner edge which is secured to the inner face 11a of the wall 11, and an inwardly turned flange 13 along its outer edge against which the panel 14 lies in the closed position. Sectorshaped lugs 17, cemented to the vertical side portions 16a of the frame, have flanges 18 which form stops for the louvre in its open position. The vertical edges 17a of the lugs 17 are spaced from the inner faces of the flanges 13 to form a channel 19 therebetween, tongues 20 projecting from the upper side edges of the louvre falling into the channel 19 when the panel is placed in the closed position. The lower edge of the panel 14, at each end, rests freely in the angle between the lower ends of the flanges 18 of the lugs 17 and the inner surfaces of the flanges 13 to provide a free hinge arrangement. A strip 21 cemented to the louvre forms a handle for operating the louvre which can be completely removed from the frame for cleaning purposes
Patent GB-562728-A (GB)
Title: Stable electric-oscillation generator and angular-velocity modulator
IPC: H03C3/14
Filed: 1943-03-26
Abstract: 562,728. Valve generating and modulating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 26, 1943, No. 4939. Convention date, March 27, 1942. [Class 40 (v)] An oscillation generator and angular-velocity modulator includes a source of stabilized oscillations of frequency Fs coupled to both first and second heterodyne converters, the output of the first converter is coupled to the input of the second converter by a coupling tuned to a frequency f and associated with a modulating means and the output of the second converter is coupled to the input of the first converter so that self-sustained oscillations are generated and modulated in angular velocity. The Figure shows two grid frequency changer valves 10, 40 fed from a source 50 and coupled by a circuit 26 tuned to frequency f and by condenser 49. Modulation is applied in pushpull to valves 60, 80 acting respectively as a capacitative and an inductive reactance and serving to vary the frequency of the circuit 26, thus modulating the signal produced by the self-sustaining oscillations. In a modification, Fig. 2 (not shown), pairs of frequency changers in cascade are used, connected in parallel channels and all fed in parallel from the source of stabilized oscillations. In one channel the coupling is tuned slightly above and in the other slightly below the frequency f and the modulated potentials are applied in push-pull to the two channels, while the output is taken from the two channels in parallel.
Patent GB-548316-A (GB)
Title: Improvements in means for preventing ice formation on wings and other parts of aeroplanes
IPC: B64D15/02
Filed: 1941-04-17
Abstract: 548,316. De-icing aircraft. FLIGHT RE-FUELLING, Ltd., and COBHAM, Sir A. J. April 17, 1941, No. 5008. [Class 4] For preventing the formation of ice on aircraft surfaces, products of combustion are produced at or conveyed to the parts to be heated such as the leading edges of the wings and tail planes. As shown gases such as butane, propane, acetylene or petrol vapour are led from a container 1 to a series of burners 3 within the leading edges of the tail planes. Ignition is effected electrically and air for combustion is collected from the wind stream through pipes. The rear side of the leading edge is sheathed with heat resisting metal and there may be a partition of similar material behind the burners. Instead of impinging directly upon the leading edge, the flames from the burners may be directed onto a shield which heats the covering by convection and radiation. In another form the combustible gases are burnt in a separate container and the products of combustion are led through conduits behind the leading edges of the planes.
Patent GB-499239-A (GB)
Title: Improvements in or relating to measuring arrangements for high-frequency currents
IPC: G01R15/18
Filed: 1938-02-17
Abstract: 499,239. High - frequency current measurements ; current transformers. SIEMENS & HALSKE AKT.-GES. Feb. 17, 1938, No. 5011. Convention date, March 2, 1937. [Class 37] [Also in Group XXXV] In measurements of highfrequency currents with annular core current transformers, rectifiers and direct current instruments, errors due to the increase of capacitance displacement currents with increasing frequency are reduced by locating the ends of the transformer winding on opposite sides of the core. The winding consists of two uniformly distributed parallel connected parts 3, 4 with the ends 3<1>, 4<1> and 3<11>, 4<11> connected together. The measuring apparatus described in Specification 481,081 is disclaimed.
Patent GB-636002-A (GB)
Title: Improvements in and relating to circuits for electric discharge tubes
IPC: H05B41/04
Filed: 1947-02-20
Abstract: 636,002. Supply systems for space-discharge lamps. GENERAL ELECTRIC CO., Ltd., and CATES, J. Feb. 20, 1947, No. 5017. [Class 38 (iv)] In a discharge lamp circuit operating from a D.C. supply, and of the type comprising in addition to the resistive ballast R an inductance L1 and a glow discharge or coilheated thermal switch S which is first closed and then opened to provide the voltage surge, a second inductance L2 is included between a lamp electrode and the switch and so connected that the voltage surges produced by the inductances oppose to provide a voltage surge across the lamp substantially greater than that across the switch. The inductances preferably comprise two choke coils wound on a common core with the inductance of the coil L1 made greater than that of L2. The invention may be applied to lamps having cold or filamentary electrodes. A small condenser may be shunted across the switch for radio interference suppression. Specification 530,828 is referred to. According to the Provisional Specification the circuit may be operated from A.C. and the initial current may be reduced by including a further choke or a resistor between the lamp and switch.
Patent GB-657403-A (GB)
Title: Drying apparatus for laundry work
IPC: D06F58/02
Filed: 1949-02-24
Abstract: 657,403. Drying-apparatus. MACHINEFABRIEK REINEVELD N.V. Feb. 24, 1949, No. 5048. Convention date, March 2, 1948. [Class 34(ii)] A tumbler drier has in its peripheral wall an air inlet and outlet for moist air the inlet being constituted as a narrow, substantially-axial slot arranged to supply the drying air to the housing tangentially thereof and in a direction away from the outlet, the latter having a larger cross-section area than the inlet and being located an angular distance less than 90 degrees from the inlet as seen in a direction opposite to the direction of rotation of the drum, the air path being increased by that arrangement. As shown, a perforated drum 4 is mounted in a housing 3, and the exhaust opening 7 is located close to the inlet 6, the path of the drying air being a distance about twice the diameter of the drum as shown by the arrows.
Patent GB-608271-A (GB)
Title: Improvements in and relating to the separation of leased warp threads in weaving preparing machines
IPC: D03J1/14
Filed: 1946-02-19
Abstract: 608,271. Separating threads from a leased warp. ZELLWEGER AKT.-GES. APPARATE- & MASCHINENFABRIKEN USTER. Feb. 19, 1946, No. 5135. Convention date. April 12, 1945. [Class 142(ii)] The foremost thread is separated from a leased warp by an oscillating member having a wedge 9 between fingers 7, 8. As shown in Fig. 4, the foremost thread A rests in a depression 14, so that as the member turns, Fig. 8, the wedge 9 deflects it behind the finger 8; on continued rotation, the finger 7 releases the thread, which is then entirely on the opposite side of the member to the main body of the warp. At this stage, the member is in the position indicated in chain line, Fig. 4, and the next thread B snaps into a depression 15 in readiness for the return movement of the member.
Patent GB-993856-A (GB)
Title: Improvements in or relating to sound attenuating gas conduit and resonators therefor
IPC: F01N1/02
Filed: 1962-02-12
Abstract: 993,856. Silencers for gaseous currents. ARVIN INDUSTRIES Inc. Feb. 12, 1962 [Aug. 17, 1961], No. 5370/62. Heading F1B. A resonater 17, Figs. 1, 3, 5, fixed within a gas conduit e.g. an exhaust pipe 10, comprises a shell formed of members 20, 20<SP>1</SP> in which are one or more resonater cavities connected to the pipe through resonater throats 22, 23, formed in the abutting flanges 21, 21<SP>1</SP>. In an exhaust pipe, Fig. 1, the throat outlets 23, 24, are preferably arranged at the pressure points of the standing wave system in the pipe. In modifications the two shells 71, 71<SP>1</SP>, Figs. 7, 8, have overlapping edges 72 and the throat is formed by a bead 74 formed in one or both edges. In Fig. 15 the concave upper shell 28 is closed by a flat plate 34 and the throat 36 may be formed in the flange 30 or in the turned over edge 106, Fig. 26 of the plate. In Fig. 29, the cavities 113, 114, are formed in a single plate 112 which is bent over along the line 118 to complete the resonater, the throat 116 being formed in the flange.
Patent GB-780877-A (GB)
Title: Laminated polymer sheets
IPC: B32B27/00
Filed: 1955-02-23
Abstract: A process for making a laminated polymer sheet comprises polymerizing a layer of a liquid alkyl ester of acrylic or a -methacrylic acid in contact with a preformed sheet of polymethyl a  - chloroacrylate. Polymerization may be carried out by irradiation with ultra-violet light, use of a catalyst and/or application of heat.  In an example, two sheets of methyl a -chloroacrylate are positioned in face-to-face relation, separated by spacers and joined along their edges by a sealing strip of filter paper impregnated with a solution of zein.  A small filler opening is allowed to remain in the sealing strip. The sealing strip is dried and the spacers are removed through the filler opening.  The mould space is filled with methyl-a -methacrylate containing benzoyl peroxide as a polymerization catalyst.  The mould is heated and then cooled, after which the sealing strip is removed and the laminated sheet is obtained.  Other esters which may be used are methyl, ethyl, propyl, butyl, isobutyl, octyl, lauryl or hexyl esters of acrylic or methacrylic acid.
Patent GB-369350-A (GB)
Title: Improvements in cartons for eggs and the like
IPC: B65D85/32
Filed: 1931-02-20
Abstract: 369,350. Egg &c. cartons. BANNING, E., 1, North La Salle Street, Chicago, U.S.A. Feb. 20, 1931, No. 5467. [Class 18.] Twin section egg &c. cartons are made from a blank shaped and creased as shown in Fig. 1, parts 5, 5<1> forming the fronts as shown in Fig. 2, parts 4, 41 the bottoms, parts 3, 31 the backs, and parts 2, 2<1> the lids, partitions and ends being formed by flaps 8 .. 11 &c. cut from parts 6, 6<1> and held in place by tongues 19 and slots 20 the lids being held closed by the engagement of hooks 25 with platforms 15 left at the tops of the partitions. Projections 26 assist to guide the hooks 25 into locking engagement and the partitions which are deeper than the depth of the box have their bottoms turned outwards to hold the partitions frictionally. The hooks 25 are carried on a flap 1 the width of which is equal to the difference in height between the front and rear walls. The sections hinge about a line 21 and may be severed along that line. An alternative form of blank is shown in Fig. 6.
Patent GB-987255-A (GB)
Title: Thiazocine compounds
IPC: C07D281/18
Filed: 1962-02-13
Abstract: The invention comprises compounds of the formula <FORM:0987255/C2/1> (wherein R is hydrogen, halogen, trihalomethyl, lower alkoxy or lower alkyl; A is O or NH; B is amino, di-lower alkylamino, di-(hydroxy-lower alkyl)amino, piperidyl, lower alkylpiperidyl, di - (lower - alkyl) - piperidyl, lower alkoxy - piperidyl, pyrrolidinyl, lower alkyl - pyrrolidinyl, di - (lower alkyl pyrrolidinyl), lower alkoxy-pyrrolidinyl, morpholinyl, lower alkyl-morpholinyl, di-(lower alkyl)-morpholinyl, lower alkoxy-morpholinyl, thiamorpholinyl, lower alkyl-thiamorpholinyl, di-(lower alkyl thiamorpholinyl), lower alkoxy-thiamorpholinyl, piperazinyl, lower alkyl-piperazinyl, di-(lower alkyl)-piperazinyl, lower alkoxy-piperazinyl, (hydroxy - lower alkyl) - piperazinyl, (lower alkanoyloxy-lower alkyl)-piperazinyl, (hydroxy - lower alkoxy - lower alkyl) - piperazinyl or (carbo-lower alkoxy)-piperazinyl; and n is zero or 1, the total number of carbon atoms in the -lower alkylene-(O-lower alkylene)-chain being 8 or less, and "lower" referring to radicals containing at most 7 carbon atoms and acid-addition salts thereof; and their preparation by reacting the appropriate 11,12-dihydro-6H -dibenzo[b,f][1,4] - thiazocine - 12 - carbonyl chloride (prepared by condensing a ,a 1-dibromo-o-xylene with the appropriate o-amino-benzenthiol to give the corresponding 11,12-dihydro-6H - dibenzo [b,f][1,4]thiazocine and then reacting this with phosgene) with the compound HA-alkylene-(O-alkylene)n-B in the presence of an alkaline condensing agent in an inert organic solvent, or by reacting the last-named compound with a compound of the formula <FORM:0987255/C2/2> itself prepared by reacting the 11,12-dihydro6H-dibenzo [b,f][1,4]thiazocine with a lower alkyl chlorocarbonate.  Examples (in one of which a product wherein B is 1-piperazino is converted into a further product wherein B is 4-(21-hydroxyethyl)-1-piperazino by reaction with ethylene oxide) are given, and a list of salt-forming inorganic and organic acids is provided. 2 - (2 - Piperidino - ethoxy) - ethanol is prepared from piperidine and diethylenechlorohydrin. 4 - Dimethylaminobutyl - 21 - tetrahydro-pyranyl ether is prepared from 4-chlorobutyl-21-tetrahydropyranyl ether and dimethylamine, and is hydrolysed to 4-dimethylaminobutanol. 2-Amino-p-anisyl-thiol is prepared by sulphonating m-anisidine to give sodium 2-amino-p-anisyl-sulphonate, reacting this with thionyl chloride to give 2-amino-p-anisyl-sulphonyl chloride and reducing this. The thiazocine compounds of the invention, which are stated to be antispasmodics or antihistamines, may be made up into pharmaceutical compositions with suitable carriers for oral or parenteral administration.  Tablets, capsules, elixirs and injectables are referred to.
Patent GB-491148-A (GB)
Title: Improvements in and relating to the manufacture of nitrogen chlorine compounds
IPC: C25B1/26
Filed: 1937-02-23
Abstract: 491,148. Electrolytic production of nitrogen trichloride. NAAMLOOZE VENNOOTSCHAP INDUSTRIEELE MAATSCHAPPIJ VOORHEEN NOURY & VAN DER LANDE. Feb. 23, 1937, No. 5475. Convention date, Feb. 28, 1936. [Class 41] Nitrogen chloride is produced by the electrolysis of acid reacting solutions containing ammonium ions and chlorine ions, contact of the product with the constituents of the electrolyte, particularly the ammonium ions, being restricted in order to avoid side reactions either by removing the volatile nitrogen chloride continuously by passage of a large quantity of air or other gas through the cell or by the use of an electrolyte containing a relatively low concentration of ammonium ions and a relatively higher concentration of chlorine ions as imparted by the addition of one or more chlorides of alkali or alkaline earth metal chlorides. When a very low proportion of ammonium chloride is present it should be maintained, e.g. by connection of the cell with a vessel containing solid ammonium chloride excessive solution being prevented by the presence of the additional chlorides. Decomposition of the product may be further prevented by the use of a current strength high in proportion to the volume of electrolyte. Electrolysis is preferably effected under reduced pressure. Examples of suitable electrolytes are: (i) 100 gms. sodium chloride, 100 gms. ammonium chloride and 5cc. hydrochloric acid (s.g. 1À19) per litre; and (ii) 50 gms. potassium chloride, 100 gms. ammonium chloride and 10 cc. hydrochloric acid (s.g. 1À19) per litre. These may be electrolysed with current strength 0À25-2 amps. per 100 cc. of electrolyte at temperature 10-40 C. Specification 468,684 is referred to.
Patent GB-119879-A (GB)
Title: Improvements in, or relating to, Carburettors for use in connection with Internal-combustion Engines.
Inventor: PARKER WILLIAM RICHARD
IPC: F02M9/08
Filed: 1917-10-18
Abstract: 119,879. Parker, W. R. Oct. 18, 1917. Heating by electricity.-An electrical resistance is employed to heat the mixture, the extra air, or air supplied to the nozzle or to a fuel-heating device of a carburettor. The resistance is located in an annular chamber b formed in the carburettor body a and comprises a coil d' enclosed in a metal jacket d<2> which may be provided with fins or flanges, the whole forming a self-contained unit which can be readily slid over the induction pipe c. The extremities of the coil are passed through openings b<2> and are secured by binding screws d<3> to terminals d on an insulating base d<5>. The openings b<2> serve as air admission ports to the chamber b to which, in addition, hot air may be supplied through an inlet j<1>. The heater may consist as shown of a series of coiled resistances, wire rings, or elements suitably connected, covered with heat-resisting insulation and enclosed between tubes or sleeves of good heat-conducting metal. For application to a heating-chamber inside the carburettor or the outside of an induction pipe the heater may be constructed of a resistance element consisting of an annular series of elongated and connected resistance coils arranged inside a sleeve or jacket so that each coil takes up a radial position within the said sleeve. Specifications 116,792 and 119.880 are referred to.
Patent GB-149374-A (GB)
Title: Improved method of manufacturing starch and conversion products thereof, and the improved products obtamed therefrom
IPC: C08B30/00
Filed: 1919-03-05
Abstract: Starch, which has been separated from amylaceous materials such as maize by the ordinary methods, is treated with proteolytic bacteria to remove the residual protein matter.  A suitable organism belonging to the type bacillus putrificus and obtained from decaying meat is described.  The starch mixed with water is inoculated with the bacteria and kept at 100-105 DEG  F. for some hours.  The supernatant liquid is removed, the starch again allowed to stand and settle. These operations are repeated for some days.
Patent GB-173989-A (GB)
Title: Improvements in or relating to steam turbines
IPC: F01D1/02
Filed: 1921-02-17
Abstract: 173,989. Baumann, K., and Metropolitan-Vickers Electrical Co., Ltd. Feb. 17, 1921. Drawings to Specification. Cooling and heating parts.-In a reaction turbine having blade-carrying discs, the dead spaces between the discs are connected by perforations in the discs or by grooves in the hubs of the discs so that there may be a continuous flow of steam into and through the spaces and thereby the turbine may be kept at a more even temperature.
Patent GB-836672-A (GB)
Title: Control circuit for a stored-energy welder
Inventor: ROCKAFELLOW STUART CRAGO
IPC: B23K11/26
Filed: 1958-02-20
Abstract: 836,672. Automatic voltage-control systems for charging condensers. ROBOTRON CORPORATION. Feb. 20, 1958, No. 5547/58. Class 38 (4). In a stored-energy welder, the voltage across a capacitor 27 is maintained constant when charged by varying the D.C. bias applied to the control grids of a pair of thyratrons 12 and 13 supplying the charging current. The anode of a screen-grid thyratron 36 is supplied with A.C. from a winding 31, the screen grid is biased negatively, and the control grid voltage is derived from a potential divider 32, 33 connected across the discharge capacitor 27. When the voltage across the discharge capacitor exceeds a predetermined value, the screen-grid thyratron conducts, and the anode current flowing through a primary 37 of a transformer 24 induces an E.M.F. in a secondary 23 which rectified and smoothed by a rectifier 26 and a capacitor 21, biases to cut-off the control grids of thyratrons 12 and 13. A grid resistor 22 determines the time constant of the grid circuit of thyratrons 12 and 13, and a potentiometer 44 across a voltage regulator tube 41 adjusts the voltage to which the capacitor 27 is charged. In a further embodiment, Fig. 2 (not shown), the screen grid 47 is connected to the cathode of the screen grid thyratron and the adjustable tapping 50 on potentiometer 44 is connected to the control grid 39.
Patent GB-1031325-A (GB)
Title: Method of anodically oxidising the surfaces of semiconductor bodies
Inventor: MOSEBACH WOLFGANG
IPC: H01L21/316
Filed: 1965-02-09
Abstract: In anodically oxidizing the surface of a semi-conductor, the anode connection to the semi-conductor is made by pressure contact of a metal conductor provided at least over its immersed length with an insulting oxidized layer.  Typically the metal conductor is formed by one or more of Al, Ti, Nb and Ta, and the semi-conductor body is silicon treated in an electrolyte comprising a saturated solution of KNO3 in N-methyl-acetamide. The semi-conductor body may contain a p-n junction and the anodic connection may be made to either region, connection to a p-type region effecting oxidation only in that region.  As shown, a stack of silicon slices 7 is held in a perforated polystyrene container 4 between a spring 8 and a tight-fitting lid 9 through which the anode connection 10 passes and a helical coil cathode 4 of Ag, Ni or stainless steel surrounds the container.  By suitable choice of anodizing time all the faces of the silicon slices in the stack may be oxidized. <PICT:1031325/C6-C7/1>
Patent GB-493492-A (GB)
Title: Improvements in or relating to tubular heat-exchange apparatus for fluids
IPC: F28D7/00
Filed: 1938-02-22
Abstract: 493,492. Tubular heat - exchangers. APELT. K. Feb. 22, 1938, No. 5623. [Class 64 (iii)] A heat-exchange apparatus for fluids consists of a central circular wrought iron tube, with a number of substantially circular wrought iron tubes c spaced from and arranged around the central tube. The ends d of the tubes are given a sector-like cross-section, and are bent inwardly to fit into a common circular flange f, to which they are welded. The tubes are mounted in a chamber a having openings b for the passage of the cooling or heating fluid.
Patent GB-1019197-A (GB)
Title: Improvements in or relating to gears
IPC: F16H55/17
Filed: 1963-03-12
Abstract: 1,019,197. Toothed gearing. SHIN-MITSUBISHI JUKOGYO K.K. March 12, 1963 [March 12, 1962], No. 5671/65. Divided out of 1,019,196. Heading F2Q. A toothed gear comprises an outer shell 1 of plate shaped to form teeth, a keywayed shaftreceiving hub 2, and two side cover plates forming, with the shell and hub, a closed chamber confining liquid filler such as oil or glycerine. The shell-forming process may be that disclosed in Specification 1,019,196.