baber/WOPTO huggingface dataset:
Patent GB-978786-A (GB)
Title: Improvements in electron tubes
IPC: H01J19/38
Filed: 1962-04-03
Abstract: 978,786. Thermionic valves. PHILIPS ELECTRONICS & ASSOCIATED INDUSTRIES Ltd. April 3, 1962 [April 6, 1961], No. 12728/62. Heading H1D. In an electron tube, control grid support rods 5, which pass through and are held in insulating discs 1, are coated with insulating or high resistance material 7 to increase the leakage path between the grid and adjacent electrodes, the grid wire being located in notches which are bare of insulating material and which face away from the cathode. As shown, the grid support rods 5 are coated with aluminium which is then oxidized. The grid wire 9 is located in notches which are sufficiently deep for the wire 9 to contact the metal of rods 5. The insulating coating 7, which has a thickness of 0.1Áor less, is removed adjacent ends 11 for supply terminal connections. In an alternative arrangement nickel rods 5 are oxidized in moist air at 600 C. to form a ptype semi-conductive surface layer. Material sputtered from the cathode is found to form an n-type layer 13 on mica or ceramic disc 1, so that a p-n junction is formed which inhibits flow of current between the cathode 3 and the negatively-biased control grid.
Patent GB-559969-A (GB)
Title: Improvements in the manufacture of mower fingers
IPC: A01D34/18
Filed: 1942-09-10
Abstract: 559,969. Mowing-machines. BAMFORD, C. J., and BAMFORD, H. V. Sept. 10, 1942, No. 12760. [Class 6 (iii)] [Also in Group XXII] Mowing-machines finger having removable liners 6, positioned by riveting and by internal projections 3, as in Specification 409,044, are constructed by welding together two drop forgings 1, 2, a triangular space 4 being preferably left to receive the flux metal during the welding process.
Patent GB-1154379-A (GB)
Title: Improvements in or relating to Cold-Cathode Discharge Devices
Inventor: MASKELL CLIFFORD WILLIAM ALFRE
IPC: H01J17/44
Filed: 1965-12-30
Abstract: 1,154,379. Electron beam apparatus. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 23 Dec., 1966 [30 Dec., 1965; 23 March, 1966], Nos. 55206/65 and 12766/66. Heading H1D A cold cathode discharge electron beam device for welding, melting and zone refining for instance, comprises an anode mounted within, or forming part of the enclosure (including removable plates 2 and 3 for example), a hollow cathode 4 formed at least partly of wire mesh (which may be water cooled via bore 7), one wall 13, which may be of circular outline and partly spherical, having an aperture, and a further electrode 14 which may be flat, partspherical and of circular outline positioned to define the gap 16. Insulator 9, earthed shield 10 and three alumina spacers 18 may be provided. The further electrode which may be movable axially, may be at the same or more negative or more positive potential than cathode 4 which latter may be surrounded by an earthed screen electrode. Focusing of the electron beam or material 29 is attained by variation of the relative electrode potentials and of the gas pressure. Pressures from 3 x 10<SP>-2</SP> to 18 x 10<SP>-2</SP> torr of He and 10<SP>-2</SP> torr of Ar are instanced while oxygen may also be used. Components 11, 13 or 14 may be of stainless steel or refractory wire mesh, 12, 13 or 14 of tantalum plate, and refractory metal rod 15 may be replaced by a wire mesh cylinder. In Fig. 2 (not shown), further electrode 14 is a water-cooled double walled hollow cylinder allowing specimen insertion into the enclosure and also the formation of thin films on a substrate outside the enclosure. Crystal growing applications are also instanced. In Fig. 2, the cathode support (33) may also be double barrelled and water cooled, and a circular disc may close the opening in the further electrode (32).
Patent GB-900306-A (GB)
Title: Purification of inert gas mixtures
IPC: F25J3/08
Filed: 1960-04-11
Abstract: 900,306. Cold separation of gas mixtures. THERMODYN G.m.b.H. April 11, 1960 [April 10, 1959], No. 12897/60. Class 8(2). [Also in Group XII]. Removal of the water vapour content and reduction from 5 to 0À1% of the carbon dioxide content of an inert gas suitable for heat treatment of steel e.g., exothermically burnt town gas is effected by compressing the unpurified gas in stages 2, 5, 9 to 40 atmospheres cooling in a water pocket 10, scrubbing in a chamber 30 to reduce the carbon dioxide content to 1%, freezing out water vapours in switchable freeze driers 12, 14 in series, expanding with external work in a turbine 17 thereby reducing the temperature to -150‹C. resulting in solidifying the remaining carbon-dioxide, removing said solids by one other of alternating combined centrifuges and filters 20, 22 and 25, 22 and passing the cold purified gas in counter-current to the unpurified gas traversing whichever is the second of the two freeze driers 12, 14. As shown three-way valves 11, 15 are set to direct unpurified gas down drier 12 through a water separator 3 and up drier 14 in countercurrent to cold purified gas which is discharged through a 3-way valve 23. Switching of valves 11, 15, 23 when drier 14 requires deriming results in warm unpurified gas passing down drier 14, through separator 13 and up drier 12 now being cooled by down flowing cold purified gas.
Patent GB-671788-A (GB)
Title: Ferromagnetic bodies having high insulating properties
Inventor: ALBERS-SCHOENBERG ERNST
IPC: C04B35/44
Filed: 1950-05-23
Abstract: 671,788. Magnetic compositions. STEATITE RESEARCH CORPORATION. May 23, 1950, No. 12916/50. Class 38 (ii). A ferromagnetic ferrite composition with a specific resistance of not less than 10<SP>8</SP> ohms-cm., a dielectric p.f. of less than 2 per cent and a firing temperature range below 1400‹ C. has the general formula xMO.Fe 2 O 3 , where M represents two or more other bivalent metal oxides one of which is magnesium oxide, the others form less than 10 per cent by weight of the composition and x/y is between 1.2 and 3. The other oxides may be of manganese, copper or zinc. Examples are given of the production of suitable compositions by grinding together, moulding and firing the following materials: MgO, MnO, Fe 2 O 3 ; MgO, MnO, ZnO, Fe 2 O 3 ; MgO, MgF 2 , MnO, ZnO.
Patent GB-592649-A (GB)
Title: Improved process for producing wash-proof patterns on woven fabrics
IPC: D06Q1/02
Filed: 1945-05-23
Abstract: Pattern effects produced on a woven fabric by embossing, calendering, or like mechanical operation are rendered permanent to water and chemicals, e.g. by condensing a synthetic resin upon the material, or by reacting the material with an aldehyde, and the fabric is then subjected to the action of a swelling agent, which may have a shrinking, parchmentizing, transparency, or other effect on the unpatterned portions of the fabric.  Crape effects may be obtained. Parts of the fabric may be printed with resists so that they are not affected by the resin treatment or by the subsequent treatment with swelling agent.  Differential dyeing effects may be produced.  In an example, a bleached cotton muslin, which may be dyed or dye-printed, is printed with a paste comprising ground carob seeds, alcohol, water, dimethylol urea, turpentine, ammonium and sodium phosphates. After drying, the fabric is subjected to the action of a high-polish calender and heated to condense the urea-formaldehyde resin.  It is then shrunk by treatment with 30 DEG  Baum<\>ae caustic soda.  A fabric with brilliant crape effects on a highly shrunk ground is obtained.  In another example, muslin fabric is impregnated with dimethylol-urea solution, dried and then printed with a paste containing potassium carbonate.  It is dried, embossed and then heated.  The resin is prevented from condensing on the printed portions by the alkali carbonate.  The fabric is then shrunk by treatment with caustic soda solution.  In another example, a fabric printed with resin components and with a gum reserve is also printed with a medium causing local transparency, e.g. thickened tin chloride or calcium thiocyanate.  This is followed by embossing and hardening. The fabric is shrunk by treatment with caustic soda solution.  The treated fabric comprises portions of embossed pattern, transparent portions, unchanged portions and portions of thickened tissue.  The printing medium used for fixing the pattern may contain dyes, pigments, metals, mica or other additions.
Patent GB-1097981-A (GB)
Title: Water-soluble phthalocyanine dyestuffs and process for preparing them
IPC: C09B62/517
Filed: 1965-03-26
Abstract: The invention comprises water - soluble phthalocyanine dyes of the formula <FORM:1097981/C4-C5/1> in which Pc is a metal-containing phthalocyanine radical which may be sustituted by non-water-solubilizing groups, e.g. alkyl, alkoxy, phenyl, benzoyl, phenylsulphonyl or acylamino groups, R1 is H or a 1-5 C alkyl which may be sustituted by water-solubilizing or non-water-solubilizing groups, e.g. -COOH, -SO3H, -OSO3H, halogen, -OH, alkoxy or acylamino, Z is -(CH2)q- or -(CH2)q-NR2-where q is 1-6 and R2 is H or a 1-5 C alkyl and wherein R1 and R2 may be linked together to form a ring, nucleus A may be further substituted, e.g. by -OH, -COOH, -SO3H, alkoxy, acylamino or nitro or halogen, a is 1-4, b is 0-3 and a + b is at least 2 and at most 4.  The dyes may be obtained by condensing amines of the formula <FORM:1097981/C4-C5/2> with phthalocyanine sulphochlorides, converting the product into the acid sulphuric acid ester and, if desired, treating the products with an alkali metal sulphite whereby a proportion of the sulphato groups are converted to sulphonic acid groups.  The condensation may be carried out in aqueous or non-aqueous medium in the presence of acid-binding agents; specified non-aqueous vehicles being methanol, dimethylformamide and pyridine.  The formation of the sulphato groups may be effected with sulphuric or chlorosulphonic acids or sulphur trioxide or their complex compounds with tertiary amines in a tertiary amine as solvent. The dyes may be employed to colour materials of cellulose, wool, silk leather or linear polyamides, especially cellulose fibres in the presence of an acid-binding agent.ALSO:In examples:  (2) N-[-2-nitro-4-(b -hydroxy-ethyl sulphonyl)-phenyl]-ethylene diamine is prepared by reacting ethylene diamine with b -hydroxyethyl - (3 - nitro - 4 - chloro) phenyl sulphone; (5) N-[21-nitro-41-(b -hydroxyethyl sulphony)-phenyl]-piperazine is prepared by reacting piperazine with b -hydroxyethyl-(3-nitro - 4 - chloro) - phenyl sulphone; (6) N-(b  - hydroxyethyl) - N1 - [2 - methoxy - 5 - (b 1-hydroxyethyl sulphonyl)-phenyl]-ethylene diamine is prepared by catalytic hydrogenation in the presence of Raney nickel of 1-[21-methoxy - 51 - (b  - hydroxyethyl sulphonyl)-phenyl] 3 - (b 1 - hydroxyethyl) - 4,5 - dihydro - 1,2,3 - triazolium chloride, which is obtained by HCl hydrolysis of the monosulphuric acid ester of 1-[21-methoxy-51-(b -hydroxyethyl sulphonyl) - phenyl] - 3 - (b 1-hydroxyethyl) - 4,5 - dihydro - 1,2,3 - triazole, itself made by coupling a diazonium salt of b -hydroxyethyl - (3 - amino - 4 - methoxy-phenyl) sulphone with diethanolamine disulphuric acid ester.
Patent GB-595236-A (GB)
Title: Improvements in and relating to two stroke cycle internal combustion engines
IPC: F02B25/00
Filed: 1941-10-07
Abstract: 595,236. Two-stroke engines. JACKSON, L. MELLERSH-, (Machinefabriek Geb. Stork & Co., N.V.). Oct. 7, 1941, No. 12957. [Classes 7 (ii), 7 (iii) and 7 (vi)] In a two-stroke diesel engine cylinder, having scavenging ports 4 opened by the piston and one or more exhaust valves 5, one or more supercharging valves 6 are opened before the exhaust valves close. The valves 6 preferably each have a sliding piston-like extension 13, Fig. 4, with a portion between ports 14 constituting a baffle which swirls the incoming supercharging air. The ports 4 are preferably upwardly inclined and tangential to the cylinder to whirl the scavenging air.
Patent GB-329798-A (GB)
Title: Improvements in machines for winding around spherical cores, rubber tape or other thread
IPC: B29D99/00
Filed: 1929-04-26
Abstract: 329,798. Morris, W. G., and Morris Manufacturing Co., Ltd. April 26, 1929. Balling-machines for winding cores for golf balls &c. from rubber tape, thread, &c., of the type wherein the core is pressed against rotated rollers which are reciprocated endwise by a presser carrying one or more idle rollers, have fluctuating spring pressure intermittently applied to the presser. The presser shaft 3, provided with a hand-lever 30 for raising it, has a weight 2 at its upper end on which rests an arm 7 freely mounted on a spindle 8 and having an adjustably tensioned spring 10 attached thereto. Fixed on the spindle 8 is an arm 9 holding the lower end of the spring 10 and an arm 12 carrying a roller 13 which engages the high part of a cam 14 driven by a worm wheel 16 and a worm 17 on the main driving spindle 19. The lower rollers are rotated from the spindle 19 through spur gearing and reciprocated by cam grooves 23, 24 engaging fixed studs, a pedal operated clutch 27 being fitted to the spindle 19, the pulley 29 of which is preferably electrically driven. In another form the driving mechanism for the cam 14 includes bevel gearing. An automatic device may be fitted for stopping the machine when the ball reaches a definite size. The mechanism may be in duplicate, one balling-machine being driven from the shaft on each side of the pulley 29.
Patent GB-130782-A (GB)
Title: Improvements relating to the Manufacture of Electrodes for Soldering and Depositing Metals by the Electric Arc.
IPC: B23K35/02
Filed: 1918-08-10
Abstract: 130,782. Alloy Welding Processes, Ltd., aad Jones, E. H. Aug. 10, 1918. Heating by electricity. - An electrode for arc soldering or depositing metals has a cover of asbestos yarn mechanically secured at the ends. The yarn may be inserted in eyes or in parallel or tapered slots in the end or side of the metal rod, Figs. 3 and 8. Such slots may be partly or wholly closed after inspection of the yarn. Alternatively, a ring or band clip, or one or more turns of wire. may clasp the rod and yarn. A ring clip may be forced on to the tapered end of the rod.
Patent GB-697873-A (GB)
Title: Inertia starter for an internal combustion engine
IPC: F02N5/04
Filed: 1951-06-01
Abstract: 697,873. Turning-gear. SILBERSTEIN, V. June 1, 1951. No.13089/51. Class 7 (v). In an inertia starter comprising a flywheel 1, a rotating member, such as pinion 12, engaged or adapted to be engaged with an engine crankshaft, and a centrifugally actuated clutch 10, 18 for coupling together the rotating member and flywheel two or more balanced weights 5 are provided for operating the clutch, the weights 5 describing a circular path and being urged by a spring 7 to lie in a first position close to the axis of the path and to suddenly swing outwards to a second position under the influence of centrifugal force with concomitant engagement of the clutch at a given angular velocity, the spring 7 being' ineffective to return the weights to the first position and so disengage the clutch until the angular velocity has fallen below the given value. The hollow starter flywheel 1, which may be manually cranked, rotates with but is axially slidable along a shaft 2, the latter being formed with a shoulder 4 to which levers 6 are pivoted and the levers having the weights 5 at one extremity. The front of the flywheel 1 is formed with a clutch surface 18, a co-operating surface 10 being provided on a member 9 having a disc 17; the member 9 is mounted on an axle 11 on which is threaded the pinion 12. When clutching is effected the shock of impact is absorbed in the. resiliency of disc 17. The levers may be hinged to the interior of the flywheel and thrust upon shoulder 4, and member 9 may be coupled to the engine by any suitable mechanical, electrical, pneumatic or hydraulic means. Member 9 may be permanently coupled to the engine crankshaft and shoes may be provided on the end of the balanced weights; the flywheel may be constituted by the engine flywheel.
Patent GB-727706-A (GB)
Title: Process for copolymerizing monovinyl aromatic compounds with rubber
Inventor: LANG JOHN LESTER
IPC: C08F2/38
Filed: 1953-05-11
Abstract: A resin composition is produced by copolymerizing in bulk a solution of 85 to 98 per cent of a liquid composed of at least one monoalkenyl aromatic compound of the benzene series having a vinyl radical as the sole polymerizable group directly attached to the nucleus, wherein the aromatic polymerizable portion of said liquid consists of at least 75 per cent of a monovinyl aromatic hydrocarbon of the benzene series or a nuclear halogenated derivative thereof and from 0 to 25 per cent of a monoalkenyl aromatic hydrocarbon, and from 15 to 2 per cent of an unsaturated rubber consisting of unvulcanized natural rubber or of copolymers from 20 to 60 per cent of styrene and 80 to 40 per cent of butadiene, or 18 to 35 per cent of acrylonitrile and 82 to 65 per cent of butadiene, or of a butadiene homopolymer, the copolymerization being effected in the presence of from 0.005 to 0.75 per cent of an unsaturated dimer of an a -methyl styrene as modifying agent.  Monovinyl aromatic compounds specified are styrene and p- or m-methyl, p-ethyl, p-isopropyl, o- or p-chloro, p-fluoro, p-bromo, ar-dimethyl, ar-dichloro, ar-diethyl, ar-methyl-ar-ethyl, ar-methyl-ar-chloro, ar-methyl-ar-isopropyl styrenes and mixtures. Monoalkenyl compounds specified are a -methyl styrene and p-methyl, ar-dimethyl-, 3,4-dichloro- and p-isopropyl-a -methyl styrenes.  The dimers listed are those of a -methyl styrene and p-methyl-, p-ethyl-, p-isopropyl-, m-ethyl-, m-methyl-, ar-dimethyl-, ar-chloro-, 3,4-dichloro-, ar-chloro-ar-methyl-, ar-diethyl-, and ar-methyl-ar-isopropyl-a -methyl styrenes and they may be prepared as described in U.S.A. Specification 2,429,719.  The dimers obtained are mixed isomers of 1- and 2-pentene derivatives, e.g. 2,4 - diphenyl - 4 - methyl - 1 - or- 2 - pentene, and may contain a minor amount of a saturated dimer, e.g. 1,1,3-trimethyl-3-phenyl indan.  Catalysts such as benzoyl and di-t.-butyl peroxides or t.-butyl hydroperoxide may be used and small amounts of mould lubricants such as soybean oil, butyl stearate and refined mineral oil may also be included.  The process is carried out batchwise or continuously and the examples describe the production, milling, moulding and testing of the products.  The polymers obtained are in a narrow range of relatively low molecular weights.
Patent GB-419299-A (GB)
Title: Improvements in magazine talking machines
IPC: G11B17/02
Filed: 1933-05-05
Abstract: 419,299. Gramophones. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, Middlesex, BARNES, N., Kenton, Amersham Hill Drive, High Wycombe, Buckinghamshire, and FLETCHER, J. W., 56, Pole Hill Road, Hillingdon Heath, Middlesex. May 5, 1933, No. 13198. Drawings to Specification. [Class 40 (ii).] Relates to magazine gramophones, and to gramophones having means for effecting automatic repetition of the playing of a record. According to the invention, means are provided which operate automatically upon the removal of the last record from a magazine, to ensure that after the playing of this record has been completed the reproducer is held in position over an electric switch or other stopping device, so that a subsequent lowering of the reproducer will operate the switch or the equivalent device to stop the machine. A further feature of the invention, relating to machines in which, after the playing of a record, the reproducer is raised, swung outwardly, and then swung inwardly, consists in providing means operative when necessary to block the swinging movement of the raised reproducer so that subsequent lowering of the reproducer from the position in which it is held will stop the machine, together with manually-operated means for putting the holding or blocking device out of action when automatic repetition of the playing of a record is desired. The invention is shown as applied to a machine which is identical with that described in Specification 404,666. Specification 359,106 also is referred to.
Patent GB-196193-A (GB)
Title: Improvements in or relating to clothes brushes
IPC: A46B5/00
Filed: 1922-05-10
Abstract: 196,193. Bewley, A. W. May 10, 1922. Tools.-Abrasive substance c is incorporated or combined, permanently or detachably, with a clothes or like brush a, so as to be surrounded bv the bristles. The abrasive substance may consist of one or more pieces of carborundum or corundum or of emery or like paper or cloth wrapped round a piece of wood, and is preferably arranged so that the outer operative surface does not extend to the face of the brush.
Patent GB-132556-A (GB)
IPC: G01L7/00
Abstract: 132,556. Jung, K. T. F. June 17, 1918. Indicating.-Comprises means for varying the ratio of the transmission gearing between the pressure-actuated member and the index pointer of a manometer or like instrument, such variation being effected without disturbing the zero reading. In the form shown in Fig. 1, the diaphragm 3 of a differential manometer has attached to its centre a stud 8. The pointer-turning mechanism is of known type; a rod 16 and a plate 18 rigidly connected thereto turn on conical journals 17, the rod 16 operating the pointer through a toothed sector and pinion 15, 14. The plate 18 is acted upon by a pin 19 which is mounted on a slide 20 movable by a screw 22 in a guide 21 rigidly carried by the stud 8. The adjustment of the pin 19 to vary the ratio of the gearing takes place parallel to the plate 18, and does not affect the zero position of the parts. The stud 8 may be furnished with vertical guides. In a modification, the top of the stud 8 is spherical, the radius being struck from the centre of the membrane, or is pointed, and engages below a spring strip carrying the pin 19, the spring strip being adjustable in a guide secured to the casing. The invention may be applied to Bourdon or other types of pressure gauges, and also to other measuring-instruments.
Patent GB-946744-A (GB)
Title: Improvements in or relating to domestic water heating fireplaces
IPC: F24B1/183
Filed: 1959-04-20
Abstract: 946,744. Hot-water boilers; open fireplaces. E. R. HINE, V. N. LOCKWOOD, and R. H. HINE. April 19, 1960 [April 20, 1959], No. 13326/59. Headings F4A and F4W. A fireplace unit has hollow side cheeks 2 between which communicates at least one tubular bar 15 positioned above the level of the firegrate (not shown). Water for central heating enters a side cheek near the bottom and some passes up into a space enclosed by a baffle 16 and through the bar or bars 15 to an open-topped space enclosed by a baffle 17. The unit may also have a rear water-space 4 or a top water-space 5 or both and there may be an opening 9, Fig. 4, through the rear space 4 or a side cheek 2 to accommodate a separate fireback boiler. The water bars 15 are bowed outwardly and downwardly. A flue 10 extends from the top middle portion of the rear waterspace 4 and contains a damper 11 controlled by a lever and rod, Figs. 1, 3 (not shown). The unit may be fitted in a fireplace with underfloor draught. It may have a detachable cast front, Fig. 1 (not shown), covering the front faces of the water cheeks 2 and the top waterspace 5 but having an air control device in a removable fret and a front opening with a sliding door or doors or a hinged door or doors, the last having a baffle plate on the rear face but being removable, interchangeable, and reversible, to expose an enamelled front face when open. The top of this detachable front may have weakened lines for adjusting the height to a fireplace.