baber/WOPTO huggingface dataset:
Patent GB-566325-A (GB)
Title: Manufacture of pigments
IPC: C09B67/04
Filed: 1942-12-08
Abstract: The strength and brilliancy of dyestuff pigments are improved by grinding with a substratum removable by a solvent and subsequently removing the substratum by means of a solvent.  A protective colloid or dispersing agent similarly removable may be incorporated with the mixture to be ground.  The pigments may be, for example, phthalocyanines, e.g. copper phthalocyanine or halogenated copper phthalocyanine, vat dyes or water-insoluble azo dyes.  Specified substrata are common salt, prepared or precipitated chalk, boric acid, sodium sulphate, calcium chloride and phthalic anhydride. Specified protective colloids or dispersing agents are the sodium salts of the acid sulphuric ester of dodecyl alcohol, of sulphonated m -heptadecyl - benzimidazole, of disulphonated m -heptadecyl-N-benzyl-benzimidazole and of oleyl-N-methyl-taurine, condensation products of an aliphatic alcohol containing 10 to 20 carbon atoms with ethylene oxide (10 to 20 mols.), sulphite cellulose waste liquor and sodium benzylsulphanilate.  In examples: (1) copper phthalocyamine is ground with phthalic anhydride, the mixture is stirred with water at 50 DEG  C. made weakly alkaline with ammonia, and the pigment is filtered, washed, dried and pulverized; the product may be incorporated with an aqueous solution of gum arabic and prepared chalk to obtain a wall-paper colour or ground with zinc white and a polymerized linseed oil to obtain a printing ink; (2) copper phthalocyanine is ground with anhydrous calcium chloride with or without the sodium salt of the acid sulphuric ester of dodecyl alcohol, the mixture is stirred with water at 98 DEG  C., and the pigment is filtered, washed, dried and pulverised; (3) copper phthalocyanine is ground with boric acid, the mixture is stirred with water at 98 DEG  C., containing, if desired, an alkali, and the pigment is filtered, washed, dried and pulverised; (4) copper phthalocyanine is ground with dried precipitated chalk and the sodium salt of the acid sulphuric ester of dodecyl alcohol, the mixture is stirred with water at 50 DEG  C. slightly acidified with hydrochloric acid, and the pigment is filtered, washed, dried and pulverised; (5) Ciba blue 2B is ground with anhydrous calcium chloride and the sodium salt of the acid sulphuric ester of dodecyl alcohol, the mixture is stirred with water at 98 DEG  C., and the pigment is filtered, washed, dried and pulverised; (6) the dyestuff, 4-chloro-2-nitroaniline --> the 21-chloroanilide of acetoacetic acid, 3-chloroaniline --> the 21-anisidide of 2 : 3-hydroxynaphthoic acid, or 5-nitro-2-aminotoluene --> the 21-toluidide of 2 : 3-hydroxynaphthoic acid, is ground with anhydrous calcium chloride and the sodium salt of the acid sulphuric ester of dodecyl alcohol, the mixture is stirred with water at 98 DEG  C. and the pigment is filtered, washed, dried and pulverised.
Patent GB-144126-A (GB)
Title: An improved golf ball
IPC: A63B37/00
Filed: 1919-07-12
Abstract: 144,126. Hutchinson, R. F., and Patton, W. July 12, 1919. Drawings to Specification. Balls. - To enhance gyrostatic and inertia effects due to spin with steadiness of flight, a tensionally-wound golf ball is provided with a layer of weighty material as near to the surface of the finished ball as possible. The material must be non-rigid and elastic, and may consist of rubber or a gelatinous compound loaded with litharge, a chemical compound, or powdered heavy metal. In weight the material is from 20 to 60 percent of the weight of the whole ball. When formed from a sheet of material, the material may be conveniently applied in two pieces of the known dumbbell like form.
Patent GB-1370407-A (GB)
Title: Spark plug gap resistance meter
IPC: G01R31/00
Filed: 1973-04-12
Abstract: 1370407 Measuring spark plug resistance GENERAL MOTORS CORP 12 April 1973 [24 April 1972] 17619/73 Heading G1U In an apparatus for measuring the resistance of a spark plug gap (to measure fouling), a series-connected constant voltage source 18 and impedance 20 are connected in shunt across the gap, the voltage across the impedance due to ignition pulses is applied via a rectifier 30 to a capacitor 28 and thence to a high input impedance amplifier 32 whose output drives an indicator 52. The MOSFET 32 forms one arm of a bridge 47 and its conductivity is controlled by the voltage across resistances 20, 22 and stored on capacitor 28. Whenever a negative ignition pulse is received by the spark plug 14 from distributor 26, diode 12 becomes reverse biased, blocking any discharge of the capacitor 28. The voltage amplitude is determined by the effective plug resistance 24. Meter 52 indicates the out-ofbalance current of the bridge which is proportional to the plug resistance. An astable multivibrator 62 is provided such that when pressswitch 60 is closed, the capacitor 28 is periodically slowly discharged via transistor 64 such that meter 52 continually tracks the plug resistance instead of reading the minimum detected resistance. A monostable multi-vibrator 90 is also provided to clamp the voltage across resistors 20, 22 to zero for a short time after the occurrence of an ignition pulse such that burning of the fuel in the cylinder is finished before measurement of the plug resistance takes place.
Patent GB-709327-A (GB)
Title: Improvements in receivers for voice-frequency telegraph transmission systems with amplitude modulation
IPC: H04L27/08
Filed: 1952-07-14
Abstract: 709,327. Code telegraphy. COMPAGNIE INDUSTRIELLE DES TELEPHONES. July 14, 1952 [July 20, 1951], No. 17702/52. Class 40 (3) In a voice frequency telegraph transmission system employing amplitude modulation and having an amplifier supplying current to a receiver relay provided with an operating winding and a compensating winding and in which the current through the compensating winding is proportional to the maximum current through the operating winding for a wide variation of the amplitude of the received signals, the intensity of the compensating current controls the attenuation of a network comprising a rectifier bridge arranged at the input. As shown in Fig. 2 the received signals are applied via an adjustable alternator 1 and amplifier 2 to a discriminator 3 which passes current to a main winding 4 and a compensating winding 5. The signals, rectified at 6 are applied to the winding 4 and over a rectifier 7 to the grid of a valve 8 via a network R1, Cl having a large time constant so that the bias of the grid of the valve assumes the general maximum value of the received signals. If the general level of the signals rises, increased current flow in the anode circuit of the valve 8 is fed back via resistance 13 to increase the attenuation of the network 12 so that the current flow through the main winding is reduced to a desired value. In a modification, Fig. 3 (not shown), the discriminator includes a second valve controlling the main winding 4 and having an R-C network with a small time constant so that the second valve responds to the voltage values of the signal elements. The two valves of this arrangement may be constituted as a doubletriode.
Patent GB-1475855-A (GB)
Title: Metering pump
IPC: F04B9/123
Filed: 1976-04-22
Abstract: 1475855 Reciprocating pumps PERMAC (UK) INDUSTRIES Ltd 22 April 1976 [29 April 1975 (2)] 17755/75 and 17756/75 Heading F1A A pump, e.g. for supplying liquid to spray nozzles in a dry-cleaning machine, comprises a pumping piston 13 driven by double-acting air water piston 14, the stroke of which is adjustable by a threaded stop rod 20. In the embodiment shown, the cylinder space beneath piston 13 is connected to inlet and outlet check valves via branches 23, and the cylinder space above the piston is vented through port 17. In the embodiment of Fig. 2 (not shown), increased delivery pressure is obtained by connecting the actuating fluid-pressure additionally to port 17 to act above piston 13, and piston 13 has a throughport controlled by a check valve (29) which opens at the end of the delivery stroke for actuating fluid to pass through and clean the cylinder, delivery line and spray nozzles. Two adjusting rods 20 of different lengths may be used. Handle 22 has an indicator mark co-operating with a scale showing the stroke setting. A reversing valve for the actuating cylinder may be controlled electrically, pneumatically or manually.
Patent GB-644034-A (GB)
Title: A process for the production of composite board from waste wood
IPC: B27N3/00
Filed: 1947-07-04
Abstract: A lubricant for application to pressure cauls in the manufacture of boards (see Group V) comprises (parts by weight) 5 parts of zinc stearate and 12 parts of paraffin oil; or 5 parts of zinc stearate, 10 parts of paraffin oil and 2 parts of acetone. Specification 644,564, [Group VIII], is referred to.ALSO:A mix composed of dry comminuted wood and not less than 10 per cent (by weight of the mix) of a liquid adhesive is prepared by spraying the adhesive on to the wood during mixing in a mechanical mixer.  The damp mix is then loaded into a cool press between cauls and compressed until contact is made by each upper caul with stops, to form a board of pre-determined thickness.  The degree of pressure is not less than 80 and not more than 500 pounds per square inch.  The pressure is exerted with gradual application of heat, e.g. 140 DEG  C., and pressure is maintained on the board, with the load supported by the stops so that no further reduction in thickness occurs; then the heat is turned off and the platens cooled by circulating a coolant therethrough.  The adhesive may be urea-formaldehyde, phenol-formaldehyde, cresolic or melamine resin, or casein; a chemical accelerator may be used with an aqueous urea-formaldehyde resin mix.  The wood may be dried by heat and cooled to room temperature before admixture with the adhesive, to prevent pre-hardening of the (thermosetting) adhesive, or may be mixed hot, and moulded before pre-hardening can take place.  The cauls may be lubricated with a mixture of zinc stearate and paraffin oil with or without acetone. Specification 644,564, [Group VIII], is referred to.
Patent GB-292953-A (GB)
Title: Improvements in or relating to wind motors
IPC: F03D1/06
Filed: 1928-06-19
Abstract: 292,953. Soc. Anon. pour l'Exploitation des ProcÚdÚs M. Leblanc- Vickers. June 27, 1927, [Convention date]. Screw motors.-In a windmill having vanes of fine stream-lined section, the width of the vanes is small with respect to the surface swept out, and their inclination is relatively small with respect to the relative direction of the incident wind. The object is to render the provision of regulating devices unnecessary. The vanes may be built up of two or more blades a, b of stream-line section connected together by members e, f. Where a vane comprises more than two blades, they may be arranged in staggered formation.
Patent GB-184336-A (GB)
Title: Improvements in electric accumulators
IPC: H01M10/04
Filed: 1921-06-30
Abstract: 184,336. Vos, C. J. J. L. de. June 30, 1921. No Patent granted (Sealing fee not paid). Electrodes.- Storage-battery electrodes are made in the form of balls which are ribbed, grooved or perforated to enlarge the surface and filled or otherwise provided with active material. Both electrodes may be of the same shape, or as shown in Fig. 2 one electrode 2 may be spherical, the other consisting of two segments 3 arranged concentrically to the electrode 2. The spherical electrode may be made in two parts united together by screw-threads.
Patent GB-722459-A (GB)
Title: Improvements in or relating to coating compositions, permanent metal dies having an insulating coating of said composition and a method of making centrifugal castings employing said dies
Inventor: MYERS ROBERT CARL
IPC: B22D13/10
Filed: 1952-07-15
Abstract: 722,459. Centrifugal casting-machines. PERFECT CIRCLE CORPORATION. July 15, 1952, No. 17837/52. Class 83 (1). Casting-processes; castings; mould materials.- A permanent, metal centrifugal casting mould has an insulating refractory coating on the inner surface thereof, with a relatively smooth inner surface and cavities with generally circular openings at its inner surface and extending into the body of the coating to form elongated thin spines of metal on the outer surface of the casting. The coating comprises a powdered refractory, a clay binder, water and a wetting agent, a preferred composition comprising 90-98 per cent silica flour and 2-10 per cent bentonite, water being added to bring the Baume reading of the mixture within the range 55-65‹. The wetting agent, the use of which is stated to cause the formation of the cavities upon the surface of the lining, may be the sodium salt of lauryl sulphate, or di-octyl sodium sulpho-succinate. The lining 15 is applied, as by spraying, to the rotating mould, which is heated to 700-1000‹ F. and the metal, e.g. grey iron cast at 2700‹ F. introduced through a spout 16 which enters the mould through an opening in a mould cap 12. Since the spines on the casting cause a rigid adherence of the coating to the casting, the casting may be extracted together with the coating by tilting the mould and vibrating it. Removal of the coating and the spines is then accomplished by tumbling or sand-blasting or a combination of both, leaving the casting with a regular even surface.
Patent GB-119577-A (GB)
Title: Improvements in or relating to Tanks for Vehicles.
Inventor: PALMER LANCELOT NASH
IPC: B60K15/00
Filed: 1917-12-03
Abstract: 119,577. Palmer, L. N. Dec. 3, 1917. Bodies. - The whole body of a motor-vehicle is formed as a fluid-proof tank or container for the petrol, gas, water, or other propelling fluid, seating accommodation being provided within the dimensions of the tank or body. The body is constructed from two metal plates, one a forming the bottom and sides, and the other b forming the upper surface and seating recesses in which the seats c are welded or otherwise secured. A supply aperture f and a feed-pipe h are connected to the tank body, and grids j may be provided on the bottom of the plate a for supporting the floors of the seating recesses.
Patent GB-407922-A (GB)
Title: Improvements in and relating to altimeters for aircraft
IPC: G01S11/02
Filed: 1932-06-25
Abstract: 407,922. Indicating proximity of earth. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Patterson, F. G. ; 933, Norwood Avenue, Schenectady, New York, U.S.A.) June 25, 1932, No. 18006. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 27, 1932]. [Class 37.] Apparatus for determining the altitude of an aircraft comprises an oscillator 4 having an oscillatory circuit comprising an inductance 10 and tuning condenser 22 and coupled to an antenna 1 mounted on the craft. This antenna provides a load on the oscillator which varies with the altitude of the craft owing to the effect of waves reflected from the surface of the earth, the frequency of the oscillator and the natural frequency of the antenna being so related that the amplitude of the oscillations varies in accordance with the altitude. The amplitude of the oscillations may be measured by an ammeter 9 connected in the anode circuit of the valve 4, which circuit may include the winding of a relay 7 for closing the circuit of indicating devices such as a lamp 18 and bell 19. The degree of coupling between the antenna 1 and the inductance 10 is variable, for example by a switch 21. The stability of the oscillator may be varied by adjusting the coupling between the feed-back coil 5 and the inductance 10. Specifications 349,426 and 358,123 are referred to.
Patent GB-1069816-A (GB)
Title: Process for making non-woven sheet materials
Inventor: HOCHBERG JEROME
IPC: D04H3/007
Filed: 1965-04-29
Abstract: A non-woven sheet consists essentially of molecularly oriented polytetrafluorethylene fibres or filaments having a denier between 0.5 and 16 d.p.f.  It is made by forming a non-woven batt of the fibres or filaments, pressing the batt at a temperature of less than 550 DEG F under a pressure of 100 to 2000 lb/in2 and then heating without pressing at a temperature between the fusion temperature of the fibres and 700 DEG F for long enough to produce a sheet of discrete fibres adhered to one another by fusion at their intersections.  The material of the fibres may be a homopolymer of tetra-fluorethylene, or a copolymer with a minor amount of hexafluoropropene, monochlorotrifluorethylene, vinylidene fluoride or vinyl fluoride.  The batt may be formed by carding and cross-lapping or by air-laying or water-laying.  The pressing may be in presses or calenders.  The products may be used as filters, carpets and underlays, heat and sound insulation, wicks, gaskets, protective clothing or coverings for ironing boards, presses and the like.
Patent GB-109361-A (GB)
Title: An Improved Machine for Grinding the Internal Surfaces of Circular Holes in Glass or other Articles.
Inventor: LEYFIELD ALBERT MARTIN
IPC: B24B5/40
Filed: 1916-12-19
Abstract: 109,361. Leyfield, A. M. Dec. 19, 1916. Round holes, enlarging and trueing; rotating-tool apparatus.-In a machine for grinding the internal surfaces of circular holes in glass or other material, the work 11, Fig. 2, such as the tubular part of a hypodermic or surgical syringe is clamped in a frame 10 mounted in gimbals in a frame 14, 15 reciprocated in guides 19 by an adjustable crank 22. The operating-tool 9 is a cylindrical core A, Fig. 3, with a thread B, C secured to or formed upon it. Abrading-material and water are supplied to the tool which is rotated by a shaft 3 through a universal joint 8. The shaft 3 is driven by a belt and pulley 6, whilst a belt 18 passing round a pulley 25 on the shaft drives the crank 22. A range of tools is provided to grind different sizes of tubes.
Patent GB-576106-A (GB)
Title: Improved polyvinyl alcohol compositions
IPC: C08L29/04
Filed: 1942-12-22
Abstract: The water-solubility of polyvinyl alcohol is reduced by incorporating therewith a hardenable phenol-formaldehyde resin and then hardening the resin.  The polyvinyl alcohol may result from partially or wholly hydrolysing polymers or interpolymers of vinyl esters.  The phenol-formaldehyde resin may be aqueous, spirit-soluble or cold-setting.  The compositions may be in the form of aqueous emulsions and may comprise solvents, e.g. acetone and alcohol, plasticizers, e.g. ethylene glycol, glycerol, mono- and di-acetin, tri-b -chloroethyl-phosphate and glyceryl adipate, dyes, pigments and fillers.  They may be made into films, threads, tubes, moulded articles and coating compositions.  In examples: (1) polyvinyl alcohol is mixed with an aqueous phenolformaldehyde resin solution, dried and the resulting powder moulded into discs; (2) polyvinyl alcohol powder is mixed with an alcoholic solution of a resin made by refluxing phenol (4 mols.) and formaldehyde solution (6 mols.) in the presence of aqueous ammonia, the mixture dried and similarly moulded; (3) powdered polyvinyl alcohol is dissolved in water at 65 DEG  to 70 DEG  C. and diacetin and an aqueous phenol-formaldehyde resin solution added and the mixture spread on a fabric in a plurality of coats and heated at 145 DEG  C.; (4) films prepared by emulsifying a phenol-formaldehyde resin and glycerol in an aqueous solution of polyvinyl alcohol are first dried and then heated at 145 DEG  C.
Patent GB-1345223-A (GB)
Title: Aliphatic polyols and their esters as  antimicrobial addtives  for dairy products and meats
IPC: A23L3/3517
Filed: 1971-06-01
Abstract: 1345223 Preservation ESSO RESEARCH & ENG CO 1 June 1971 [2 June 1970] 18239/71 Heading A2D A method of preserving a meat or dairy product comprises treating the product with from 0.05 to 5.0 wt% of a preservative which is a linear aliphatic polyol or at least a monoester thereof, the polyol having from 3 to 15 carbon atoms per molecule and hydroxy groups on alternate carbon atoms and on at least the first and third carbon atoms, the acid from which the ester (when employed) is derived being a normal aliphatic monocarboxylic acid having 2 to 20 carbon atoms per molecule. Suitable preservatives are 1,3-heptane diol, 1,3-butane diol-1-monoootanoate, 1,3-octane diol-1-monopropionate and 1,3-butane diol dipropionate. The food products may be dipped into or sprayed with the preservative. The preservative is particularly useful in the treatment of sausage stuffing, fish and cheese.
Patent GB-255874-A (GB)
Title: Improvements in the manufacture of briquettes from furnace dust and fine ores, with the admixture of mill cinder and hammer scale, as well as magnesium chloride
IPC: C22B1/24
Filed: 1926-07-21
Abstract: 255,874. Comptoir Technique A. Knaff & L. Mayer, and Gredt, P. July 21, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Briquetting processes. - Blast-furnace dust and fine ores are briquetted with mill cinder, hammer scale or the like and magnesium chloride or similarly acting material, all preferably finely divided.
Patent GB-159522-A (GB)
Title: A new or improved gas-fired oven or kiln for use in the manufacture of tiles, pottery and other ware and for other purposes
IPC: F27B9/06
Filed: 1919-07-23
Abstract: 159,522. Marlow, J. H. July 23,1919. Pottery and like kilns.-In a gas-fired tunnel or other kiln or oven for the manufacture of tiles, pottery, &c. heating-gases are delivered to the kiln chamber through perforated conduits sunplied from separate combustion chambers, and through perforations in the walls or archway of the kiln. As shown in connection with a tunnel kiln having two lines of rails for goods-carrying trucks, three perforated conduits a, b, c are employed, two running along the sides of the kiln and the third along the middle, and beneath these conduits are combustion chambers x, x<1> supplied with gas from a producer. Leading from the side conduits are flues k formed of tubular sections or by perforated plates n spaced from the main walls of the tunnel by the partition walls between the flues. A partition l may be provided to separate the flues k at one side of the tunnel from those at the other. The products of ccmbustion are exhausted from the kiln by a fan through a jacket flue at the inlet end filled for part of its length with horizontally-arranged pipes.
Patent GB-184342-A (GB)
Title: Process and apparatus for purifying and condensing exhaust steam and for purifying the condensate
Filed: 1921-07-06
Abstract: 184,342. Schull, M. July 6, 1921. Separators.-In apparatus for condensing exhaust steam and purifying the condensate to make it suitable for use as feed-water, the steam is condensed in a chamber a containing spraying nozzles f and fitted with steam separating plates c, and the condensate flows through a mud trap i and an oil separator k and finally, together with make-up water, through a purifying chamber s, where it is heated by the steam from the separator passing through a pipe coil t. The sloping plates in the separating chamber direct the steam in a zigzag course to the outlet pipe e. The condensate passes through a grating at the bottom of the separator.