baber/WOPTO huggingface dataset:
Patent GB-491050-A (GB)
Title: Cathode-ray tubes, especially for television
IPC: H01J29/82
Filed: 1937-08-17
Abstract: 491,050. Cathode - ray tubes. MICHAELIS, E. Aug. 17, 1937, No. 22564. Convention date, Aug. 28, 1936. [Class 39 (i)] The electrodes constituting the lens system of a cathode-ray tube are formed by so shaping a body of insulating material as to form surfaces which are of the configuration, extent and disposition required for the system and then metallizing the surfaces so as tc form the desired electrodes. The insulating body A of glass or ceramic material is formed to the desired shape and the surfaces B, C, D are metallized by spraying, plating &c. to form a controlling cylinder and a first and second anode. In a modification, a number of parts may be shaped and metallized and are then formed into a single unit. The metal coating may be of such a nature as to act as a getter. The Specification as open to inspection under Sect. 91 comprises also a mushroom-shaped cathode made of insulating material such as quartz, porcelain or steatite, with the mushroom head made as thin as possible and provided with metal plate for the emissive material. The emission from the undersides of the mushroom head may be reflected in the forward direction from surfaces which may be secondary electron emitting. Another form of cathode described, consists of a cylinder or prism of insulating material with a central longitudinal heating filament and oxide coated on one or more flat faces. This subject-matter does not appear in the Specification as accepted.
Patent GB-1377576-A (GB)
Title: Method of inhibiting corrosion of metlas during pickling and  solution for same
IPC: C23G1/06
Filed: 1972-05-13
Abstract: 1377576 Isoperthiocyanic acid and its derivatives UKRAINSKY NAUCHNO-ISSLEDOVATELSKY UGLEKHIMICHESKY INSTITUT 13 May 1972 22583/72 Heading C2C [Also in Division C7] Alpha-hydroxy substituted derivatives of isoperthiocyanic acid of formula where R = -CH 2 OH, -C 2 H 4 OH, -C 3 H 6 OH or -C 6 H 4 CH 2 OH are prepared by condensing isoperthiocyanic acid with aliphatio or aromatic aldehydes; the isoperthiocyanic acid is prepared thus  2NH 4 CNS + H 2 SO 4  -# 2HCNS + (NH 4 ) 2  SO 4 3HCNS-# HCN +H 2 C 2 N 2 S 3  (isoperthiocyanic acid).
Patent GB-652377-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N5/655
Filed: 1947-08-15
Abstract: 652,377. Television receivers. JACKSON, D., and PYE, Ltd. Aug. 15, 1947, No. 22685. [Class 40 (iii)] A television receiver is provided with a chassis plate on which valves and other components are mounted and through an aperture in which the neck of the cathode-ray tube passes. In the arrangement shown in Figs. 1, 3 and 4, the chassis plate 12 which is supported by a frame 13 is provided with an aperture 16 through which the neck of the cathode-ray tube 14 passes and a further aperture 22 behind which a loud-speaker 21 is mounted, other components such as valves 35 and 36 being also mounted on the plate 12. The neck of the tube 14 is supported from the chassis plate by means of a metal casing 18 which encloses the focusing and deflecting coils 19, 20, the latter being arranged for rotational adjustment by means of a lever 28, and the front of the tube is supported between horizontal frame members 32, 33, fitted with rubber pads 34. A bay-window extension 6, preferably of moulded transparent material, surrounds the screen end of the tube which projects from the front of the cabinet when the chassis is mounted therein. Manual controls 23, 24, which are carried by the frame member 13, project through slots 25 in the front of the cabinet. Apertures 9 and 10 are provided at the top and bottom of the cabinet for ventilation. Specifications 512,716, 600,096 and 628,541, [both in Group XL (a)], are referred to.
Patent GB-1131170-A (GB)
Title: Naphtho spiro furan compound
IPC: C07D307/00
Filed: 1967-05-16
Abstract: 1,131,170. Naptho spiro furan compounds. NORDA ESSENTIAL OIL & CHEMICAL CO. Inc. 16 May, 1967 [17 Aug., 1966], No. No. 22688/67. Heading C2C. The invention comprises 4(3),4(3)-dimethyl perhydro naphtho spiro - 1,3<SP>1</SP>- tetrahydrofuran and 4(3),4(3)-dimethyl octahydro naphtho spiro - 1,3<SP>1 </SP>- tetrahydrofuran. The compounds are prepared by reacting myrcene and a lower dialkyl itaconate in an inert atmosphere at between 100 C. and 170 C. in the presence of a phenolic polymerization inhibitor to give a methylpentenyl carboalkoxy methano-carboalkoxy cyclohexene, cyclizing by heating the product with a strong acid to give a dicarboalkoxy substituted dimethyl octahydronaphthalene compound, reducing the two carboalkoxy substituents to a methanohydroxy group and an ethanohydroxy group, refluxing the product with a strong acid thereby causing dehydration and forming a dimethyl octahydronaphtho spiro tetrahydrofuran compound and hydrogenating to give the corresponding dimethyl perhydro naphtho spiro tetrahydrofuran compound.
Patent GB-1216623-A (GB)
Title: Systems for processing composite television signals
IPC: H04N5/7826
Filed: 1969-05-05
Abstract: 1,216,623. Television. AMPEX CORP. 5 May, 1969 [6 May, 1968], No. 22832/69. Heading H4F. A system for processing a composite television signal having periodic dropout intervals, e.g. due to the manner in which the signal is read out from a magnetic tape on which it is recorded, includes control means for providing indications of the position and duration of the dropout intervals and means, responsive to the control means, to clamp the composite signal to a predetermined level, e.g. black level, for the duration of the dropout intervals. In the system shown the position and width of the dropout intervals are identified by a circuit 19 in terms of their relationship to the vertical synchronizing pulsers. A synchronizing pulse selecting circuit 15 together with a mono-stable multivibrator 38 apply pulses determined by the vertical synchronizing pulses to the circuit 19, and the control signal indicative of the dropout intervals is supplied to a dropout clamp 20 in which the composite signal is clamped during the dropout intervals. Horizontal synchronizing pulses may be inserted into the clamped dropout intervals in an adder 122, the pulse-inserting circuit 23 including a phase-controlled linefrequency oscillator 190 controlled by pulses from a generator 86 synchronized with the horizontal synchronizing pulses. The output from the oscillator 190 is applied, together with a signal indicative of the dropout position and duration on line 48, to an AND gate 92 and hence to an OR gate 102, the other input of which comprises synchronizing pulses on line 177 when enabled by circuit 78. The synchronizing pulses are then inserted on line 108 into the adder 122. In another embodiment (Fig. 4, not shown) the dropout interval position and duration are identified in a circuit (300) by their relationship with the horizontal synchronizing pulses. The circuit (300) includes a gated integrator (316) which provides a signal indicative of the position of the dropout interval due to the absence of horizontal synchronizing pulses from a multivibrator (302) during the dropout intervals for a period greater than a predetermined time.
Patent GB-963730-A (GB)
Title: Heel clamp for a shoe lasting machine
IPC: A43D8/04
Filed: 1962-04-18
Abstract: The subject-matter of this Specification is part of that described in Specification 963,723, but the claims are concerned with the heel band and its associated clamping mechanism.
Patent GB-337350-A (GB)
Title: A process of preparing artificial silk of high tensile strength from viscose
IPC: D01F2/08
Filed: 1929-07-25
Abstract: 337,350. British Enka Artificial Silk Co., Ltd., (Assignees of Naamlooze Vennootschap Nederlandsche Kunstzijdefabriek). June 8, 1929, [Convention date]. Right to Patent relinquished. Cellulose xanthates. - A spinning bath for viscose contains at least 30 per cent of sulphonic acids of aromatic hydrocarbons. Sulphuric acid may also be present; the crude reaction mixture obtained in the sulphonation of benzene may be used. In an example, the bath contains 37.9 per cent of benzene sulphonic acid and 22.3 per cent of sulphuric acid. Tension may be applied during spinning by means of a thread guide at a distance of 30-60 cm. from the spinning nozzle. Glucose and alcohols may be added to the bath. The filaments may be afterwards washed in water, or dilute acid or salt solution. Weaklv matured viscose, prepared by the use of a small quantity of carbon bisulphide, may be used. The product has an elongation of 10-13 per cent. Specifications 170,029, 174,960, 184,449, 234,188, 234,433 and 274,521 are referred to.
Patent GB-1185213-A (GB)
Title: Abrasive Scouring Cleansers
IPC: C11D17/00
Filed: 1967-05-17
Abstract: 1,185,213. Abrasive scouring cleanser. COLGATE-PALMOLIVE CO. 17 Mav, 1967 [18 May, 1966], No. 22964/67. Heading C5D. An abrasive scouring cleanser composition in the form of a dry powder comprises .at least 60% of a water-insoluble inorganic siliceous abrasive material having a particle size of less than 0-5 mm., 0À5-20% of chlorinated trisodium phosphate (i.e. the reaction product of trisodium phosphate with an alkali metal hypochlorite), 0À5-15% of a water-soluble organic detergent stable in the presence of chlorinated trisodium phosphate, 0À3-10% of a water-soluble inorganic bromide, and a water-soluble inorganic buffer salt which adjusts the pH of the composition (as a 50% aqueous slurry) to within the range 8-5 to 10.5 inclusive. Suitably the bromide is sodium, potassium, lithium, magnesium or strontium bromide and the inorganic buffer salt is a bicarbonate, an acid phosphate or a borate (e.g. NaHCO 3 , NaH 2 PO 4 , Na 2 HPO 4  or borax). The abrasive material may be silica, feldspar, pumice, volcanic ash, diatomaceous earth, bentonite, talc or mixtures thereof. The organic detergent may be anionic, cationic, non-ionic or amphoteric and examples of each class are given. The cleanser composition may contain additional ingredients such as inorganic builder salts, sequestering agents (e.g. nitrilotriacetic acid, ethylenediamine tetraacetic acid, diethylene triamine penta-acetic acid and their salts), fillers (e.g. wood pulp, sawdust, magnesite or whiting), sodium carboxymethylcellulose, anti-caking agents and optical brighteners.
Patent GB-1066492-A (GB)
Title: Determination of heats of reaction
Inventor: GROSZEK ALEKSANDER JERZY
IPC: G01N25/48
Filed: 1964-06-04
Abstract: 1, 066, 492. Measuring heat of reaction electrically. MICROSCAL Ltd. June 2, 1965, [June 4, 1964], No. 23139/64. Addition to 822, 432. Heading G1N.  Apparatus for determining the heat of reaction between a fluid and a solid reactant comprises a cell holding the solid reactant and thermistors for measuring the temperature change. As shown (Fig. 5) a granular solid reactant 20 is located in a calorimeter 5, and supported by a wire gauze 7. Suitable heat shielding 9 and insulation 18 is supplied externally. A stream of inert liquid acting as a solvent or carrier for the test fluid is introduced via the funnel 19 shown, and the test liquid via another funnel 19 not shown, or a test gas via inlet 25. The temperature of the solid reactant is measured by thermistors 1, 2 and compared with the ambient temperature measured by thermistors 3, 4, in a D. C. bridge circuit. The ambient temperature may be raised to a steady value by a heating coil 13. The apparatus is calibrated with a further heating coil (not shown) in the solid reactant 20, by measuring the power required to produce the same temperature change. The apparatus may be used for identifying the constituents of a fractionated liquid mixture.
Patent GB-838194-A (GB)
Title: Improvements in spectacle hinges
IPC: G02C5/22
Filed: 1958-07-18
Abstract: 838,194. Spectacle hinges. RODENSTOCK, R., [trading as OPTISCHE WERKE G. RODENSTOCK.]. July 18, 1958 [Nov. 21, 1957], No. 23202/58. Class 65(2) Between the barrel sockets 4 and the hinge flap 2 a pair of opposed grooves 5, 6 are cut so that in adjusting the side pieces 7 only the portion between the grooves is distorted. The grooves may be of either of the crosssections shown and are along their lengths equidistant from the outer surface of the hinge flap.
Patent GB-1333516-A (GB)
Title: Material steaming devices
IPC: D06F75/30
Filed: 1972-05-17
Abstract: 1333516 Clothes conditioners SUNBEAM CORP 17 May 1972 [12 July 1971] 23257/72 Heading D1A A hand-held clothes conditioner has a brush 20 which conforms in shape to an apertured steam head 26 and has at least one resilient tab 149 with a block (152) (Fig. 5, not shown) releasably engageable with a recess (154) (Fig. 8 not shown) in the housing 10 to retain the brush. Pressure on the parts 148 of the brush releases the blocks (152) for removal of the brush. The conditioner further comprises screwedtogether upper and lower housing parts 12, 14; a boiler including a metal cup 28, a surround-  ing heating element 34 and below the cup a thermostat 30 and a fuse; a moulded plate 114 with a plurality of steam passages 110 and an apertured metal steam head secured to the upper housing 12 adjacent a steam passage 116.
Patent GB-338936-A (GB)
Title: Improvements in the manufacture of artificial materials from cellulose esters or ethers
IPC: D01F2/28
Filed: 1929-07-29
Abstract: 338,936. British Celanese, Ltd., Roberts, R. P., and Gregory, L. W. July 29, 1929. Cellulose esters and ethers, processes for making filaments from.-Opaque filaments, yarns, threads, and ribbons of organic esters or ethers of cellulose, which have been obtained by coagulation with aqueous media, are subjected to the action of heat to give products of improved transparence, and tensile strength. The coagulated filaments &c. obtained by spinning into aqueous media are carried around a heated drum or roller, or they may be subjected to the action of dry steam, or other hot vapours or gases. The heating may take place while the products are under tension, or the products may be stretched during or subsequently to the heating process. Prior to the heat treatment, the filaments or the like may be impregnated with solvents, swelling agents, or plasticisers for the cellulose derivatives, a number of suitable agents being mentioned. In an example, cellulose acetate in acetone is spun in ribbon form into water, and the product is led round a steam heated roller, after which it is wound directly on a bobbin. In another example, the ribbon obtained as above by coagulation in water, is passed through a solution of diacetone alcohol, diethyl tartrate, or ethyl lactate, before coming into contact with the heated roller. Specifications 332,187 and 332,231 are referred to.
Patent GB-1440181-A (GB)
Title: Food compositions
IPC: A23L15/00
Filed: 1972-05-18
Abstract: 1440181 Acidic food compositions UNILEVER Ltd 17 Aug 1973 [18 May 1972] 23339/72 Heading A2B [Also in Division C5] A food composition comprises (a) an aqueous phase having a pH of from 3.0-5.5, (b) 0.05- 10% by wt. of an isolated complex of a globular protein and an algal anionic polysaccharide and (c) a dry matter, exclusive of the isolated complex, of 3-85% by wt. The globular protein may be prepared from whey e.g. betalactoglobulin, alpha-lactalbumin, serum-albumin, immunoglobulin, polypeptides; blood serum e.g. blood serum albumin; egg-white e.g. ovalbumin, conalbumin, and ovumucoid; eggyolk; soya whey; yeast or wheat germ. The polysaccharide may be sodium alginate or carrageenan. The complex may be precipitated from a mixture of the protein and the polysaccharide in an aqueous medium having a pH of 1-4. The separated complex may be spraydried. The ratio of polysaccharide to protein in the complex may be 1:2-1:7 by wt. A liquid pancake batter may be prepared having the following composition 1-5% complex, 25-50% flour, 1-10% mono- and/or di-saccharides, 2-8% fat and 40-70% by wt .water. An oil-inwater emulsion preferably has 1-5% complex, 3-20% mono- and/or di-saccharides, 10-50% fat, 0.3-20% emulsifier and 40-85% by wt. water. A water-in-oil emulsion preferably has 1-10% complex, 25-60% fat and 30-70% by wt. water. A low calorie protein spread preferably has a 1-10% complex, 3-20% fat, 0-8% additional protein, 0.5-2% tragancath, and 60- 95% by wt. water. The complex may be mixed with quark in an amount of 10-40% by wt.
Patent GB-1333615-A (GB)
Title: Cyclopentane derivatives
IPC: C07D317/72
Filed: 1971-06-14
Abstract: 1333615 Cyclopentane derivatives MERCK & CO Inc 14 June 1971 [22 June 1970] 23405/73 Divided out of 1333614 Heading C2C The invention comprises the cyclopentane and indene derivatives of the formulae 12, 12a, 12b, 13 and 14 and their preparation by the route shown in the reaction scheme below (R is C 1-6  alkyl).
Patent GB-745015-A (GB)
Title: Improvements in or relating to circuit arrangements
Inventor: GOLDSMITH MICHAEL NORTON GRENI
IPC: H03K4/22
Filed: 1953-08-25
Abstract: 745,015. Saw-tooth and pulse generating circuits. MULLARD RADIO VALVE CO., Ltd. Aug, 25, 1953, No. 23427/53. Class 40 (6). The invention relates to circuits of the # Precision Sanatron " type, that is in which the run down of a Miller valve 1 is terminated by a # catcher " diode 8 and the original potentials are restored by applying a blocking bias to the suppressor grid via an amplifier valve 10 from a differentiating transformer 28 and resulting from the sudden rise of screen current at the end of the run down, a diode 7 being connected to the anode of the Miller valve to determine the initial voltage of the run down. According to the invention an inductor 6 is inserted in the anode circuit of diode 7 to momentarily cause the voltage at the anode of valve 1 during the flyback to rise above the voltage E1 and so shorten the reset time. A further shortening of the reset time is effected by supplying the screen grid current of valve 1 in series rather than in shunt with the differentiating transformer. Triggering pulses are applied at terminal 27. Specification 745,014 is referred to.
Patent GB-277337-A (GB)
Title: Improvements in or relating to copper disc rectifiers for alternating current
IPC: B61L7/06
Filed: 1927-09-06
Abstract: 277,337. Siemens - Schuckertwerke Akt.-Ges., (Assignees of Siemens-Schuckertwerke Ges.). Sept. 11, 1926, [Convention date]. Contacting-solid resistances.-Relates to rectifiers of the kind comprising oxide-coated copper discs and consists in making the thickness of the oxide coating from 0.001 to 0.1 mm.
Patent GB-1256040-A (GB)
Title: Hollow sheet metal turbine blades
IPC: F01D5/18
Filed: 1970-05-14
Abstract: 1,256,040. Turbine blades. GENERAL MOTORS CORP. May 14, 1970 [Aug. 25, 1969], No. 23463/70. Heading F1T. A hollow turbine blade comprising layers of sheet metal 12 to 15 bonded together has spanwise rows of staggered cooling air holes at the leading edge 17. The outside layer 12 has three spanwise rows of holes 29 which overlie the inner three rows of five rows of larger holes 30 in the adjacent layer 13. The holes 30 partially overlie holes 31 in layer 14 and the latter holes similarly partially overlie holes 32 in the inside layer 15. The three innermost rows of holes 32 may have a diamond shape prior to folding of the layers into the rounded leading edge configuration so that after folding these holes are not completely constricted. The layers 12, 13 are spaced apart by bosses (36), Fig. 5 (not shown), on layer 13 and the gap formed thereby is supplied with cooling air through grooves 35 leading from the outermost rows of holes 30. Additional air may be supplied to this gap through further holes (38) in layer 13, the air exhausting through holes in layer 12. The holes may be formed by photoetching and the various layers joined together by diffusion bonding. The cooling air is supplied to the blade interior through a passage 23 in a root stalk 7. The tip of the blade is closed by a cast metal plug (25), Fig.1 (not shown), having a sealing lip (26).
Patent GB-144933-A (GB)
Title: Improvements in safety devices for mine cages and the like
IPC: B66B5/26
Filed: 1919-09-24
Abstract: 144,933. Evans, P. Sept. 24, 1919. Catch gear of mine-cage type.-If the winding- rope breaks, the mine cage &c. is suspended by L-shaped pivoted catches i on the cage which are swung into engagement with the notched guide timbers h by springs l. The catches are normally disengaged by chains k connecting them to the winding rope ring and then lie within the guidecheeks d.
Patent GB-206286-A (GB)
Title: Improvements in and relating to looms for weaving pile fabrics and tapestry
IPC: D03D27/00
Filed: 1922-08-30
Abstract: 206,286. Craig & Co., Ltd., A. F., and Brown, W. A. S. Aug. 30, 1922. Pile-fabric looms.-The wire carrier n<1> in looms for weaving pile fabrics and tapestry is operated from a rocking arm a pivoted at b and connected by a link d to a slotted lever e operated by a pin f on a spur wheel g driven by spur and bevel gearing from the driving shaft. An eccentric k on the axis of the wheel g operates an eccentric rod j and a lever h whereby the link d is moved up and down, so that a quick forward and a slow return movement is imparted to the carrier, which is operatively connected to the arm a by a rope n passing over fixed pulleys p and over pulleys c on the arm, or by other intermediate gearing. In a modification, the slotted link is pivoted to a cross-head reciprocated on guide rods by an eccentric rod and eccentric on a shaft. driven by spiral skew gearing from a shaft driven through a clutch from the crankshaft, the eccentric shaft being provided with a wheel carrying a pin working in the slot of the slotted lever.
Patent GB-353270-A (GB)
Title: Improvements in electric induction furnaces
IPC: H05B6/24
Filed: 1930-08-06
Abstract: 353,270. Electric induction furnaces. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London. -(Assignees of Williams, C. S.; 442, Ross Avenue, Wilkinsburg, Pennsylvania, U.S.A.) Aug. 6, 1930, No. 23577. Convention date, Aug. 14, 1929. [Class 39 (iii).] A coreless furnace employs two groups of turns 21, 22, the individual turns of each group having axes parallel to one another but inclined to the crucible axis and the groups being arranged symmetrically with respect to the crucible. The axis of each group is perpendicular to the crucible axis. The bottom part of every turn is arranged under the crucible and the top part is arranged laterally of the crucible. The turns are rectangular and an external rectangular laminated magnetic shell 23 is provided. In a modification the magnetic shell is U-shaped and is formed of vertical U-shaped laminations.
Patent GB-856383-A (GB)
Title: Improvements in or relating to indicating instruments
Inventor: COWLIN PHILIP
IPC: G01D13/26
Filed: 1956-07-31
Abstract: 856,383. Photo-electric control. BAILEY METERS & CONTROLS Ltd. July 31, 1957 [July 31, 1956], No. 23618/56. Class 40(3). In means for providing an indication or a control according to the position of a pointer 7, e.g. of a galvanometer, relative to an adjustable arm 11, a vane 33 on the pointer passes between a light source 23 and a pair of photo-transistors arranged in recesses 15 in a block 13. Light is directed on to the transistors by horizontal and vertical cylindrical lenses 25 and 27, 29. The transistors P1, P2 are arranged in circuit with resistors 49, 51, 57 and a control relay 41 which operates a contact 45 to provide a remote indication or control through terminals 47. In a modification, Fig. 4 (not shown), the transistors are arranged in a bridge circuit and a rectifier is provided in parallel with the control relay.