baber/WOPTO huggingface dataset:
Patent GB-207818-A (GB)
Title: Improvements in or relating to wireless receiving systems and electron discharge devices therefor
IPC: H01J19/68
Filed: 1923-11-30
Abstract: 207,818. Connecticut Telephone & Electric Co., Inc., (Assignees of Donle, H. P.). Dec. 1, 1922, [Convention date]. Addition to 201,893. Thermionic amplifiers and detectors.-A tube for use as a detector and amplifier contains free alkali metal and has a cathode 8, an anode 16, and a control electrode 15, with means for heating the tube, the circuit connections being such that the current in the cathode-control-electrode circuit is decreased when the cathode-anode circuit is broken. A tuned circuit, comprising a variable condenser 23 and an inductance 22 coupled with an aerial inductance 20, is connected between the control electrode and the filament through a potentiometer winding 25, which is connected in series with a resistance 36 across the filament batterv 27. The filament circuit includes the heater 32, a fixed resistance 35, and a variable resistance 26. The anode-cathode circuit comprises a battery 29 and a telephone receiver 30, loud speaker or relay. The control electrode is preferably maintained at about-1 volt. It is stated that with a potential of -1.4 volts on the control electrode the current in the cathode-control-electrode circuit is reduced from 600 to 250 microamps, when the anode-cathode circuit is opened.
Patent GB-1028049-A (GB)
Title: Dishwasher impeller assembly having a change of pace mechanism therefor
Inventor: WALL BYRON THOMAS
IPC: A47L15/06
Filed: 1964-07-31
Abstract: 1,028,049. Dishwashing machines. A. LISBIN, P. LISBIN and G. TANNEY. July 31, 1964, No. 30331/64. Heading A4F. A dishwashing machine comprises an impeller including a shaft carrying helical vanes rotable within and independently of a rotary cylindrical housing having diametrically opposed slots through which washing water, in which the impeller is partly submerged, is thrown by the vanes on to dishes in a rack, and gearing is provided for periodically changing the speed of rotation of the housing. The gearing is, adapted to rotate the housing more quickly during the periods when the water discharge is substantially horizontal and therefore not effective to wash the dishes. The gearing includes cams 84, 86, Fig. 8, rotatable through a pinion gear train (not shown) by a belt driven by a motor. The cam 86 actuates an arm 87 having a finger 91 for rotating a pinion 94 keyed to the housing 63 (not shown). A sleeve 90 having diametrically opposed notches 89 is integral with the pinion 94 and is thus rotatable by the arm 87 until the cylinder 63 reaches a position in which the water issues substantially horizontally through the slots, when a finger 88 on an arm 85 actuated by the cam 84 engages in one of the notches 89 to rotate the housing quickly through a substantial arc so that water again impinges on the dishes. The cover of the washing chamber is raised and lowered by a fluid pressure actuated piston and cylinder device.
Patent GB-484972-A (GB)
Title: Improvements in or relating to stools, chairs, and the like
IPC: A47C7/00
Filed: 1937-11-05
Abstract: 484,972. Stools, seats, &c. KAVANAGH, P. Nov. 5, 1937, No. 30341. [Class 52 (ii)] A stool or chair has a seat a the front portion of which is reduced in width and so shaped as to lie between the legs of the occupant, two rear legs c, and a front leg b, the legs being rigidly fixed to the seat. A back e and rails d may be provided, and a foot-rest may be secured to the front leg. An arm-chair, Fig. 8, may have the seat and legs similarly shaped and arranged. The front leg may be provided with a telescopic or hinged member to elevate or adjust the height of the front of the seat.
Patent GB-734096-A (GB)
Title: Improvements in and relating to the production of linear polyethers
Inventor: REEDER FRANK
IPC: C08G65/48
Filed: 1952-12-01
Abstract: The linear polyethers of the parent Specification, obtained by reacting equimolecular proportions of a dihydric phenol and a disulphonic ester of a diol in presence of alkali, have their molecular weights increased by heating them in a liquid which boils at 150 DEG  C. or over in presence of a caustic alkali or an alkali metal alcoholate, either the alkali or alkoxide, but not both, being insoluble in the reaction medium so that heating is effected under heterogeneous conditions.  Heating is preferably effected at 130-200 DEG  C. and under reflux.  After the heating the polyethers may be stabilized by the process of Specification 734,095, by heating them under homogeneous conditions with an alcohol, phenol or amine in presence of a base.  In examples (1)-(4) a polyether obtained by heating under reflux a mixture of hydroquinone and butane-1 : 4-diol-di-p-toluene sulphonate in presence of sodium hydroxide, water and dioxane and filtering off and washing the precipitated polymer had its molecular weight increased by heating it with (a) o-dichlorobenzene and sodium hydroxide; (b) o-dichlorobenzene and sodium methoxide; (c) o-dichlorobenzene, sodium hydroxide, hydroquinone and water; (d) anisole and sodium hydroxide.  The polyethers were then stabilized by heating them with a mixture of m-cresol and potassium hydroxide; (5) a polyether made by heating together 4 : 41-dihydroxydibenzyl and butane-1 : 4-diol-di-p-toluene sulphonate as in example 1 had its molecular weight increased by heating it with o-dichlorobenzene and sodium hydroxide and was stabilized as in example 1; (6) a polyether made by heating together 4 : 41-dihydroxybenzophenone and butane-1 : 4-diol-di-p-toluene sulphonate as in example 1 had its molecular weight increased by heating it with o-dichlorobenzene and sodium hydroxide and was stabilised as in example 1; (7) a polyether obtained by heating together diphenylol propane and pentane-1 : 5-diol-di-p-toluene sulphonate as in example 1 had its molecular weight increased by heating it with ethylene glycol and sodium hydroxide; (8) the polyether of example 1 was heated with ethylene glycol and sodium hydroxide.
Patent GB-377520-A (GB)
Title: Electric battery lamps
IPC: F21L4/00
Filed: 1931-11-02
Abstract: 377,520. Electric battery lamps. REDDIE, L. N., 6, Bream's Buildings, London.-(Neu, J. and Neuburger, J. ; 25, Eschenstrasse, N³remburg, Germany.) Nov. 2, 1931, No. 30366. [Classes 39 (ii) and 75 (iv).] An electric battery lamp is provided with a flat casing a, Fig. 4, which is formed with rounded sides and is open at its upper and lower ends to receive cylindrical batteries b inserted therein in a transverse direction with their ends pointing towards the rounded sides of the casing. A lens p<1> on one of the flat sides of the casing may be mounted on a metal bridge or strip p, Fig. 2, which is formed with lugs engaging over the edges of the casing and retained in position by end caps or covers f, Fig. 1 (not shown) which are pushed over the open ends. Alternatively the end caps may be hinged to the metal bridge carrying the lens. The inside of the casing is lined with insulating material d, Fig. 5, to which metal strips h, h<1> and i, i<1> are secured by tongues or rivets and make contact with the metal contact faces of the batteries b, a sliding-switch c being provided on one of the rounded sides. The switch carries a metal piece q which bears upon the metal casing and is adapted to be moved downwardly into contact with the strip i<1>, contact between the strip i and the central contact u of the lamp bulb being provided by a metal strip v. The correct arrangement of the batteries within the casing may be indicated by signs s, Fig. 4, or illustrations therein.
Patent GB-1331025-A (GB)
Title: Helicopter rotor blades
IPC: B64C27/46
Filed: 1972-06-29
Abstract: 1331025 Helicopter rotor blade UNITED AIRCRAFT CORP 29 June 1972 [22 Sept 1971] 30377/72 Heading B7W A helicopter rotor blade has a tip portion 20 which is swept back relative to a main portion 18, is of constant chord dimension and is uniformly thinned from its inboard end 34 to its outboard end 36. The inboard end 34 is preferably of symmetrical aerofoil shape, Fig. 4 (not shown), while the outboard end is about half the thickness and is cambered. The angle of sweep is preferably about 20 degrees and the tip portion is about 6% of blade span. The tip portion includes a C-shaped spar 44 and tapering ribs 50. The provision of this tip portion is stated to reduce instability at relatively high tip Mach numbers.
Patent GB-604948-A (GB)
Title: Improvements in and relating to straight bar knitting machines for the manufacture of underwear and outerwear
IPC: D04B11/00
Filed: 1945-11-13
Abstract: 604,948. Knitting-machines. COTTON, Ltd.. W., and WILDERS, G. Nov. 13, 1945, No. 30394. [Class 74(ii)] A straight-bar machine has the yarn carrier driven with a constant lead over the slurcock by a twin chain or flexible element 11, which passes over pairs of sprockets 15, 16, 15<1>, 16<1> carried in adjustable blocks 17, 17<1>. The blocks slide on rods 18, 19 to vary the length of the central portion 11a of the element 11, extending in the direction of travel of the carrier. The carrier is connected to the element 11 by a fork 21 which is attached to the carrier rod and engages the driving element 22, while the latter is in the central portion of its path. At the end portions 11b the carrier becomes disengaged. The element 11 is adjustably attached to a rod 12 reciprocated with constant amplitude by a draw cam and levers. Spring loaded latches 23, 23<1> are arranged on the blocks 17, 17<1> which hold the fork 21 when it is disengaged by the driving element 22 at the ends of its stroke. The latches are raised before re-engagement by cams carried on a rod moving jointly with rod 12 which contact trucks 25, 25<1>. Spring loaded buffers 28, 28<1> may be provided to engage the fork just before the ends of its stroke. The slurcock is operated by a separate draw cam and lever, the cam retarding it by a constant amount relative to the carrier. Specifications 482,895, 537,259 and 566,735 are referred to.
Patent GB-466774-A (GB)
Title: Improvements in or relating to the retreading of motor and like wheel tyres
IPC: B29D30/54
Filed: 1935-11-05
Abstract: 466,774. Vulcanizing tyres. WELCH, W.H. Nov. 5, 1935, No. 30592. [Class 70] [Also in Group XI] An apparatus for retreading tyres comprises a rotatable rim or wheel-like support for the tyre carcase, a mould for the new tread and means spaced away from the mould to supply heat thereto. The means may be electric heating elements, steam-heated elements or gas jets' or the mould may constitute the shortcircuited winding of a transformer. In one form of apparatus, an electric motor 19 rotates a wheel 12 carrying the tyre carcase 13, inflated by tube 14, and carrying a tread mixture 16 and thin sheet metal moulds 15. Vanes 22 circulate air around the inner periphery of the wheel. Heat is supplied by electric heating elements 18. In a modification, reflectors are associated with the elements. When steamheated elements are employed, a steam jet may play on to the vanes to rotate the wheel. The mould may comprise two or more sections of thin sheet with clamped flanges or a linked chain of die cast sections.
Patent GB-383402-A (GB)
Title: A process for the treatment of carbon obtained by the decomposition of a carbon-containing gas in the presence of a metal containing catalyser
IPC: C09C1/56
Filed: 1931-11-05
Abstract: Carbon obtained by the catalytic decomposition with metal or metallic compound of a carbon-containing gas, e.g. carbon monoxide or a hydrocarbon, is rendered fit for use as a pigment by connecting the metal or metallic carbide resulting from the catalyst into a dark-coloured compound which harmonizes with the carbon.  In the case of carbon obtained by the use of ferric oxide as a catalyst, iron carbide remaining is treated with an acid, such as tannic or gallic acid, or with a phenol, thus producing the desired dark-coloured compound.  To convert the carbides to Prussian blue, the carbide is first treated with an acid, then with a cyanide and finally with an oxidizing agent.  The catalysts described are iron, ferric oxide and oxalate, nickel, nickel oxalate, cobalt and cobalt oxalate.  In the case of nickel and cobalt, the carbides formed may be converted to dark-coloured sulphides.  In an example, 100 kilogrammes of carbon containing 5 per cent of iron are heated with 9,8 kilogrammes of sulphuric acid diluted with enough water to moisten the whole of the carbon. The mass is mixed with a concentrated solution of potassium ferrocyanide and potassium chlorate and dried.  The potassium salts may be removed by washing with water.
Patent GB-1189865-A (GB)
Title: Improvements relating to Power Transmission
IPC: H02J3/00
Filed: 1967-07-05
Abstract: 1,189,865. Cooling conductors. AIR PRODUCTS & CHEMICALS Inc. 5 July, 1967 [13 July, 1966], No. 30850/67. Heading H1A. [Also in Division F4] A three-phase transmission system, 8, Fig. 1, extending between a power source 10 and a load 12, is cooled by circulating a refrigerant, e.g. subcooled liquid nitrogen, in one direction along a passage, e.g. 20 in a conductor 14, and in the opposite direction along passages 22, 24 in the other conductors 16, 18, the refrigerant undergoing a phase change, e.g. from liquid to vapour during circulation. Pressure differences between inlet and outlet allow vapour expansion, causing further cooling. The transmission line may be divided into sections (9A-9D, Fig. 2, not shown), each having a refrigeration system similar to that of Fig. 1. In a modification (Fig. 3, not shown) in which the refrigerant withdrawn from the first conductor is of mixed phase, e.g. liquid and vapour, the phases are separated, equally divided and recombined for circulation in the other conductors. The transmission line, shown in Fig. 4, comprises conductors 152, 153, 154 of nickel-plated copper or aluminium, having refrigerant channels 155, 156, 157. Longitudinally spaced insulating bands 158 support insulator posts 161, in turn supporting apertured electrostatic shields 162, within support rings 166 spaced longitudinally along the shields. The conductors are banded by longitudinally spaced straps 169 and housed in a conduit 170, defining a vacuum-tight chamber 177, evacuated to a pressure of 10<SP>-6</SP>- 10<SP>-8</SP> mm. Hg by a mechanical pump 176 and an ion pump 178. The conductors may be solid and disposed in refrigerant channels.
Patent GB-699025-A (GB)
Title: Improvements relating to securing loads, more especially delicate loads to hand trucks or other transporting means
IPC: B62B1/14
Filed: 1950-12-19
Abstract: 699,025. Strap strainers. SLINGSBY. Ltd., H. C., SLINGSBY, G., and SLINGSBY, C. Dec. 19, 1951 [Dec. 19, 1950] No. 30885/50. Class 45 [Also in Group XXXII] A hand truck or other transporting means is provided with lever-operated means pivotally attached to the load supporting frame of the truck or the like which means is adapted for the further tightening of one or more straps on each of which has a buckle for initial tightening to secure the load. The truck comprises a, U-shaped tubular frame 1 having three transverse bracing members 2 welded to it at intervals and having an angle-iron 6 welded across the open end of the U for pushing under the load. Two tubes 4 on which bearings 8 for wheels 10 are mounted are welded to the underside of the frame 1 and a handle 3 is welded near the upper end. A cranked strainer 14 is pivotally mounted between brackets 15, the lower of which has a detachable section on the two' uppermost bracing members 2 and is so connected to the straps 12 which embrace the load carried by the truck that when it is rotated clockwise by an integral lever 16, as shown in Fig. 1, the straps are tensioned. The member 14 is rotated until the lever 16 butts against the frame member 1, in which position the member 14 is in an over-deadcentre position and so maintains the tension in the straps. The truck has a felt pad 11 on which the load rests. When a load having widely spaced legs is to be carried a detachable iron having a hook at the top is fixed to'the angle-iron 6.
Patent GB-1503557-A (GB)
Title: Wall tie
IPC: E04B1/76
Filed: 1976-06-25
Abstract: 1503557 Wall ties R W LEEDHAM 25 June 1976 [24 July 1975] 30945/75 Heading E1B A device for locating sheet insulation material 10 or 17 in a cavity wall is formed from wire and comprises enlarged end parts 2 set in opposite leaves of the wall, a lateral part 3 extending between the end parts and carrying as a fixture therewith a wire retaining member which projects transversely from the lateral part and is adapted to hold the insulating material. The lateral part being formed with drip forming parts 4.
Patent GB-1204073-A (GB)
Title: Improvements in or relating to disc brakes
IPC: F16D55/2255
Filed: 1968-06-28
Abstract: 1,204,073. Restricted pivoting. ALFRED TEVES G.m.b.H. 28 June, 1968 [1 July, 1967; 13 March, 1968], No. 30986/68. Heading E2F. [Also in Division F2] A brake caliper 1 is pivoted on a support 2 by balls 4', 4" located in sockets 3', 3" in the support, the caliper being mounted on the balls through hollow screws 5', 5" having concave ends 10', 10". The screws are held in position by lock nuts 6', 6". The gaps between the support 2 and the screws are closed by seals 7', 7" and looking washers 8', 8" and filled with lubricating grease. Bores in the screws are also filled with lubricant. The caliper pivots resiliently on the balls until the frictional force of the mounting is overcome.
Patent GB-1014020-A (GB)
Title: Lipoic acid derivatives and their preparation
IPC: A61K31/44
Filed: 1964-08-04
Abstract: The invention comprises lipoylpyridoxamine and its acid addition salts, e.g. the hydrochloride, hydrobromide, methanesulphonate and p-toluenesulphonate.  Lipoylpyridoxamine may be prepared by reacting pyridoxamine with lipoic acid anhydride or lipoylchloride, but preferably is prepared by reacting pyridoxamine with a mixed anhydride of lipoic acid and a carbonic acid monoalkyl ester, as in the example.  Lipoylpridoxamine and its physiologically acceptable acid addition salts, may be used in medicines mixed with water, vegetable oils, polyethylene glycols, gelatin, lactose, starch, magnesium stearate, talc, petroleum jelly or cholesterol.
Patent GB-649724-A (GB)
Title: Improvements in or relating to photo-electric circuits
IPC: H04N5/228
Filed: 1947-11-24
Abstract: 649,724. Television. PHILIPS ELECTRICAL, Ltd. Nov. 24, 1947, No. 31045. Convention date, Nov. 27, 1946. [Class 40 (iii)] [Also in Group XL (c)] The capacity change between the signal plate 5 (Fig. 1) and the electron collecting electrode 6 of an iconoscope type tube which results when an optical image on the mosaic 3 is scanned by an electron beam, is employed to vary the frequency of an oscillator 12 from which frequency modulated television signals are obtained for transmission. In a further arrangement (Fig. 2) a frequency modulated output signal derived from oscillator 19 is connected to an amplitude modulated signal in a frequency discriminator 24 and combined, in potentiometer 21, with an amplitude modulated signal produced across a conventional signal plate load resistor 14, a series resonant circuit 15, 16 tuned to the oscillator frequency and connected in parallel with resistor 14 preventing oscillatory voltages of the oscillator frequency from being set up across this resistor. This combined signal may be applied either to a television transmitter or, through an amplifier 26, to a monitoring tube 27. It is stated that distortions which normally occur in image transmission may be eliminated by the last arrangement since the distortions in the two derived signals are of a different nature and may be made to cancel one another. In a further embodiment a photo-electric cell is employed as the frequency modulating device and the derived signals are applied to a monitoring or local viewing tube (Fig. 3, not shown).
Patent GB-1025916-A (GB)
Title: A method of dyeing hair and compositions for use in the method
Inventor: CHARLE ROGER
IPC: A61K/
Filed: 1964-08-04
Abstract: Hair is dyed by applying (a) an amine of the formula: <FORM:1025916/D1-D2/1> wherein R1 is H1 methyl, ethyl or propyl and X is -NR.R1 in which R is methyl, ethyl or propyl and R1 is -CH2CONH2, -CH2COOH, -CH2CH2 NHSO2CH3 or -CH2CON(C2H5)2 or an N-piperidyl or N-morpholyl radical, (b) one or more compounds of one of the following formulae:  <FORM:1025916/D1-D2/2> wherein R2 is H and R3 is methoxy in the 4-position or R2 is H or methyl in the 6-position and R3 is -CH3, -NHCOCH3, -NHCH2CONH2, -NHCH2CON(C2H5)2 or -NHCOCH2N(C2H5)2 in the 3-position; R4-CO-CH2-CO-R5 wherein R4 is methyl and R5 is methyl or ethoxy or R4 is phenyl and R5 is p-carboxy-or m-carboxy-phenyl-amino; or <FORM:1025916/D1-D2/3> wherein Y is phenyl, p-sulphophenyl, m-sulphophenyl or 2-chloro-5-sulphophenyl and (c) an oxidizing agent; allowing sufficient time to elapse and then removing any excess of components (a), (b) and (c) from the hair.  The compounds (a) and (b) may be used, where appropriate, in the form of their salts. The components may be applied in any sequence but preferably simultaneously.  The solutions may also contain wetting, dispensing or penetrating agents as well as azo dyes, e.g. 4, 41-dihydroxy-2-aminoazobenzene. Examples are given in which the oxidizing agent (c) is hydrogen peroxide and a number of compounds (a) and (b) are specified.
Patent GB-1149982-A (GB)
Title: Improvements in or relating to smoke shells
IPC: F42B12/48
Filed: 1967-07-06
Abstract: 1,149,982. Smoke generating compositions. FORSVARETS FABRIKSVERK. 6 July, 1967 [13 July, 1966], No. 31190/67. Heading C1D. [Also in Division F3] Smoke generating composition comprises liquid titanium tetrachloride, smoke acid (HClSO 3  + SO 3 ), or stannic chloride admixed with and adsorbed on the surfaces of the grains of a well dried adsorption active powder, e.g. synthetic calcium silicate, the powder comprising 5-15% by weight of the mixture and having a surface area of at least 50 m<SP>2</SP>/g.
Patent GB-905467-A (GB)
Title: Carbon and locking means therefor
Inventor: ANDRE NOBLE
IPC: B65D71/00
Filed: 1959-09-14
Abstract: 905,467. Packages. ANDBE-MATIC MACHINERY CO. Sept. 14, 1959, No. 31201/59. Class 94(1). A package comprises a pair of parallel rows of cans and a blank, Fig. 3 (not shown), folded about the cans to form an open ended carton having side walls 3, 4 and end walls 5, 6, the wall 5 being formed by two end portions 9, 10 of the blank with terminal end sections 13, 14 extending vertically between the rows of cans, a T-shaped tab 18 being provided to project from the portion 9 and extend through an opening 22 formed in the portion 10, as shown. The ears 21 of each tab 18 retain it in the opening 22 which is formed by cutting a tab 23. Tabs 40 stamped out of the section 14 fit in openings left by similar tabs 40 stamped out of the section 13 to prevent movement of the portions 9, 10 longitudinally of the carton. Specification 839,146 is referred to.