baber/WOPTO huggingface dataset:
Patent GB-663173-A (GB)
Title: Improvements in and relating to fuel injection carburetters for internal combustion engines
IPC: F02D9/00
Filed: 1948-04-23
Abstract: 663,173. Spray carburetters. SOLEX. April 23, 1948'[April 26, 1947], No. 11261/48. Class 7(iii) The flow of fuel under pressure supplied from a pipe 5 to a nozzle 30 through a normal working jet 28 is controlled by a spring-loaded valve 7 operated through a rod 9 by differential diaphragms 10, 12, forming a chamber 11 therebetween subjected through a pipe 15 to the suction in a Venturi 4 upstream of the throttle valve 2, the diaphragm 10 being also subjected to the fuel pressure in a chamber 6, and an idling orifice 33 is fed .through a jet 35, subject to ,the suction downstream of the throttle valve when the latter is slightly open. The diaphragms 12, 10 are loosely connected at 13 and loaded by an adjustable spring plate 42, which is forced back by a stop .50 . on , a rod 48 connected to an arm, 47 on the throttle spindle 3, when the throttle valve 2 closes to ensure closing of the valve 7 when the engine stops. An extension 48a of rod 48 forces a diaphragm 53 to the left when throttle valve 2 closes so that on porarily the air pressure in chamber 16. sudden opening, a spring 55 forces the diaphragm 53 to the right to increase temcausing valve 7 to open to provide fuel for acceleration. When the suction in conduit 29 reaches a predetermined value, a valve 57 is opened to reduce the suction in chamber 11 and reduce the fuel flow. The nozzle 30 may open downstream of throttle valve 2. in which case a large orifice 31 destroys the effect of suction thereon, or upstream of the valve 2, e.g. at the Venturi 4. in which case the orifice 31 is replaced by a small air bleed orifice. The pipe 15 may also have a connection 61 to a point adjacent the throttle valve 2. which increases the suction in the space 11 at small throttle openings. In a modification, a check valve 21 which prevents air being sucked into passage 20 during idling is replaced by. a diaphragm operated valve. Specification 600.552 is referred to-
Patent GB-464461-A (GB)
Title: Apparatus for supplying steam, hot water and distilled water, intended particularly for use in hairdressers' saloons
IPC: A45D4/04
Filed: 1936-04-20
Abstract: 464,461. Hair - waving appliances. LESCHZINER, P., and VIELER, K. April 20, 1936, No. 11299. Convention date, April 20,1935. [Class 131] In apparatus comprising a boiler 1 supplying steam to a hair-waving appliance through a pipe 9, and a chamber 10 into which condensate from the appliance is conducted by a pipe 12, the boiler and the chamber are compartments of a single receptacle and the compartments are connected by a steam pipe 11 and provided with hot-water draw-off taps 13, 14.
Patent GB-1006083-A (GB)
Title: Fluorescent lamp
IPC: C09K11/02
Filed: 1961-03-28
Abstract: The glass of the envelope of a fluorescent electric discharge lamp has a composition of, expressed in percentages by weight, SiO2-73.6, Na2O-16.0, K2O-0.6, Al2O3-1.0, CaO-5.2, MgO-3.6.  Part or all of the inner surface of the envelope is coated with one or more transparent refractory oxides substantially free from alkali metal, such as Al2O3, SiO2 and TiO2.  A composition which forms a glass composition may be mixed with the refractory oxides. The layer has a thickness of from 0.0005 to 0.001 inches.  Specifications 866,466 and 946,751 are referred to.ALSO:A sodium oxide-containing envelope of a mercury-vapour fluorescent discharge lamp has a transparent layer of one or more refractory oxides, substantially free from alkali metal, on at least part of the inner surface of the envelope to reduce darkening thereof due to formation of an amalgam between the mercury filling and the alkali metal constituent of the envelope. The layer can be of Al2O3, SiO2, TiO2 or mixtures thereof.  The layer may be from 0,0005 to 0,001 inch thick, and may be prepared by milling the oxide in a lacquer vehicle comprising specified proportions of xylol, butanol, dibutyl phthalate and ethyl cellulose.  The oxide particles may be less than 200 mesh and as low as 0,010 micron.  After the inside surface of the envelope has been coated and dried, the envelope is baked at a temperature just below the deformation temperature of the glass, e.g. 550-600  DEG C.  A glass-forming composition may be mixed with the refractory oxide.  The oxide layer can be coated directly on the entire inner surface of the envelope and a phosphor layer deposited on it over a major portion of the envelope, leaving a window free from phosphor.
Patent GB-639208-A (GB)
Title: Earth working scraper
IPC: E02F3/64
Filed: 1947-04-28
Abstract: 639,208. Bowl-type scrapers. LETOURNEAU, Inc., R. G. April 28, 1947, No. 11364. Convention date, April 27, 1946. [Class 68 (i)] An earth-working scraper comprises a bowl supported adjacent its rear end by wheels, and a draft yoke straddling the bowl from the front, the rear ends of the legs of the yoke being pivotallyconnected to the bowl rearwardly of its forward end to permit vertical adjustment of the bowl, such vertical adjustment being effected by means of a reversible power winch unit including a prime mover mounted on the yoke and connected to the bowl adjacent its forward end by a lift cable system. The yoke 2 comprises side beams 3 pivoted to the bowl 1 at 4 and connected by a cross-beam 5 having a projecting neck 6 rigidly connected to a power steering unit 7 mounted on the deck of a two-wheeled tractor. The bowl 1 is supported at its rear end by wheels 11 mounted on a frame structure 10 rigid with the bowl. Within the bowl is a longitudinally movable gate 12 comprising a blade 13 riding on the bottom of the bowl, the gate being connected by a push-bar assembly or frame 15 to power actuating mechanism. The bowl comprises a blade base 16 on which is mounted a transverse cutting or digging blade 17, side plates 18 secured to posts 19 inter-connected by a top back beam 20, top side beams 21, intermediate posts 22 (not shown), stiffening beams forming partof forwardly projecting bowl lifting arms 25, and arcuate stiffening ribs 26. A verticallyswingable apron 27, including side arms pivoted to the side plates 18 and double-walled side wings 30, is operated by a reversible electric winch unit 41 through a cable 43 passing over sheaves 44 and connected to the apron at 46. A second winch unit 32 comprises a double cable drum 33 to which are secured both ends of a cable, reeved around sheaves 37 on the arms 25, fixed sheaves 38 on the beam 5 and directionchanging sheaves 36, 40. The winch units each comprise a reduction gear-box and a normally set automatic brake.
Patent GB-698463-A (GB)
Title: Improvements in or relating to aralkylated bis-phenolic compounds
IPC: C07C39/16
Filed: 1951-05-16
Abstract: Resins are made by condensing aldehydes such as formaldehyde with aralkylated bisphenols of the formula <FORM:0698463/IV (a)/1> where A is an alkylidene radical, AR and Ar are aromatic hydrocarbon residues, B is a direct linkage or an alkylidene radical of 1-5 carbon atoms, R is hydrogen or a hydrocarbon radical and m and n are 1 or 2; certain restrictions are placed on the combinations of radicals (see Group IV (b)).ALSO:The invention comprises aralkylated bisphenols of the formula <FORM:0698463/IV (b)/1> where A is an alkylidene radical, AR and Ar are aromatic hydrocarbon residues, B is a direct linkage or an alkylidene radical of 1-5 carbon atoms, R is hydrogen or a hydrocarbon radical and m and n are 1 or 2; when Ar is unsubstituted phenyl and B is absent and R is hydrogen, then A has more than one carbon atom and/or AR has at least one alkyl substituent; when A is -CH2- and AR is an unsubstituted benzene residue, then B has at least one carbon atom and/or at least one R is a hydrocarbon radical.  The compounds are made by condensing a bisphenol HO-AR-A-AR-OH with an unsaturated hydrocarbon Ar-B-CR=CR2 in the presence of an acidic condensation catalyst.  The bis-phenols are obtained by condensing two mols. of a monohydric phenol with an aldehyde or ketone.  Various catalysts are suitable, especially aryl sulphonic acids and 25-50 per cent sulphuric acid.  The products are isolated by the addition of water or alkali, extraction with benzene or other organic solvent, evaporation of the solvent and fractional distillation under reduced pressure to separate the mixture which is usually obtained.  Examples show the condensation of (1) 2 : 2-bis-(p-hydroxyphenyl)-propane with styrene; (2) 2 : 2-bis-(p-hydroxyphenyl)-propane with a -methylstyrene; (3) bis-(p-hydroxyphenyl)-methane with allylbenzene; (4) bis - (4 - hydroxy - 1 - naphthyl) - methane with 2 - methallylbenzene; (5) 2 : 2 - bis - (p - hydroxyphenyl)-propane with allylnaphthalene; and (6) bis-(p-hydroxyphenyl)-methane with 6-phenyl-1-hexene.  In each case a mixture of products is obtained.  They are useful as antioxidants for oils, fats, rubber and other materials.  Other suitable reactants are listed.ALSO:Rubber compositions (natural and synthetic) contain as antioxidant and flex improver an aralkylated bis-phenol of the formula <FORM:0698463/V/1> where A is an alkylidene radical, AR and Ar are aromatic hydrocarbon residues, B is a direct linkage or an alkylidene radical of 1-5 carbon atoms, R is hydrogen or a hydrocarbon radical and m and n are 1 or 2; certain restrictions are placed on the combinations of radicals, (see Group IV(b)).
Patent GB-748282-A (GB)
Title: Improvements in or relating to optical tonometers
Inventor: MAURICE DAVID MYER
IPC: A61B3/16
Filed: 1953-04-24
Abstract: 748,282. Optical tonometers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 26, 1954 [April 24, 1953], No. 11436/53. Class 81(2). In a device for measuring the internal pressure of the eyeball, the body of the instrument extends around the plunger and bears on the cornea over a relatively large area. The body of the instrument 1 encloses a pressure sensitive element 31 which is connected to an external recording device and is actuated by the plunger rod 12. This plunger is in two sections see Fig. 6 (not shown), one bearing against the other with the junction in the same plane as a gimbal mounting 21 carrying an outer cylinder 9 so as to allow relatively free movement to the end of the plunger 12. The end of the cylinder 9 carries a cup 10 by means of which the appliance bears on the eyeball, suitable pressure being applied by a spring set on a pivot between the casing 1 and a bracket 4, which is connected, by adjusting means not shown, to a head band. The outer part of the gimbal 21 is mounted on a cylinder 20 which can slide axially in a guide 18 on the casing 1 and is adjusted in this direction by a cam 43 rotated through a cord 39 by a knob 7. This adjustment varies the position of the cup 10 relative to the end of the plunger. rod 12, and so varies the actual pressure exerted by the latter on the eyeball.
Patent GB-1270632-A (GB)
Title: Preparation of organic polymer particles and aqueous dispersions thereof
Inventor: MOREHOUSE DONALD SYMES
IPC: C08F2/22
Filed: 1970-03-10
Abstract: 1,270,632. Microcapsules. DOW CHEMICAL CO. 10 March, 1970 [10 March, 1969], No. 11459/70. Heading B8C. [Also in Division C3] -Inert liquids are encapsulated in polymeric microspheres by including the liquid in an emulsion polymerization medium which contains as a coalescing aid 0À2-2% based on the monomer(s) of a polymer of a sulpho-ester of an alpha, beta-ethyleneically unsaturated acid. In the examples are polymerized methyl methacrylate/2-hydroxyethyl acrylate, styrene/2- hydroxyethyl acrylate, styrene/acrylonitrile and styrene. The polymer added is poly-sulphoethyl methacrylate or a copolymer thereof with butyl acrylate styrene or acrylonitrile Liquids which are encapsulated are neohexane and liquid polybutadiene. A small amount of an electrolyte, e.g. sodium sulphate is preferably added.
Patent GB-1171956-A (GB)
Title: Reactive Monoazo Dyes, their production and use
Inventor: GRANNDJEAN PHILIPPE
IPC: H01M2/10
Filed: 1967-03-10
Abstract: 1,171,956. Reactive dyestuffs. SANDOZ Ltd. 10 March, 1967 [28 March, 1966], No. 11474/67. Heading C4P. The invention comprises reactive dyes of general formula wherein A is a C 2 -C 3  alkylene radical and may be substituted by an hydroxyl group, X is a radical containing at least one substituent which reacts with a fibre substrate to form a covalent bond, and Z is H, Cl, Br, C 1 -C 5  alkyl or COOH. Preferably X is a reactive acyl radical or a mono- or dihalotriazinyl or di or trihalopyrimidyl radical. They are prepared by reacting one mole of 2-amino-5-hydroxynaphthalene-7-sulphonic acid with at least one mole of a reactive group containing acylating agent and coupling in ortho position to the 5-OH group with one mole of a diazo compound of general formula wherein Y is H or SO 3 H, followed by reaction with a sulphating agent when Y is H, the above acylation and coupling reactions being carried out in either order. Alternatively a 2-acylamino - 5 - hydroxynaphthalene - 7 - sulphonic acid may be coupled with the diazo compound, the non-reactive acyl group hydrolysed to amino in acid or alkaline conditions, acylating the amino group to introduce the fibre reactive group and when Y is H sulphating the dye at any stage during the replacement of the non- reactive 2-acyl group by radical X. Hydrolysis of the non-reactive acyl group after sulphation is carried out in alkaline conditions. The dyes may be after-treated with ammonia to convert dihalotriazine radicals to monohaloamino triazine radicals. The dyes are used to dye leather, wool, silk, synthetic polyamides, cotton, linen, hemp, viscose and cuprammonium rayons and blends scarlet.
Patent GB-352538-A (GB)
Title: Improvements relating to wall plugs
IPC: F16B13/14
Filed: 1930-04-11
Abstract: 352,538. Moulding wall plugs by extrusion. RAWLINGS, J. J. and RAWLPLUG CO., Ltd., Rawlplug House, Cromwell Road, South Kensington, London. April 11, 1930, No. 11540. [Class 87 (ii).] In the manufacture of tubular screw-holding wall plugs from plastic material containing fibrous matter, such as a mixture of albumen and asbestos fibre, the plastic material is brought to a tubular form by extrusion through one tubular die d, and, before it has set or hardened, the extruded material is given a helical twist by being passed through a second tubular die f rotated relatively to the first. The material in the cylinder a is forced by the plunger b through the die d containing a central core e. The second die f is rotatably mounted on the flange h and is driven by the worm wheel k. The mandrel e extends into the die f and this die may be given a right or left hand twist, or it may be rotated in opposite directions alternately.
Patent GB-441808-A (GB)
Title: Improvements relating to apparatus for playing table games
IPC: A63F7/30
Filed: 1935-07-23
Abstract: 441,808. Table - game apparatus. WHITE, W. W., 12, Edith Road, Selhurst, London. July 23, 1935, No. 11586. [Class 132 (ii)] In bagatelle gameapparatus wherein the playing surface is provided with rotatable, polygonal members to deflect a ball into a pocket, each member a is rotatably mounted on a spindle d fixed to the playing surface c, Fig. 1, or to a block e movable over the playing surface Fig. 3, and means are provided to vary the frictional resistance to rotation thereof. As shown, a spring washer g is located between a washer h secured to the spindle d and a screw f rotation of which adjusts the spring tension to vary the resistance to rotation. The member a is surrounded by a rubber or other cushion b.
Patent GB-1489997-A (GB)
Title: Speed control of squirrel-cage motors
IPC: H02P23/00
Filed: 1975-03-20
Abstract: 1489997 Control of A.C. motors GRUNDFOS AS 20 Mareh 1975 [25 March 1974] 11702/75 Heading H2J A three-phase squirrel cage motor has a set of main stator windings H1, H2, H3 whose ends are connected by terminals 4, 5, 6 to a three-phase supply RST and by terminals 1, 2, 3 to the terminals 10, 11, 12 of a set of additional stator windings T1, T2, T3 having terminals 7, 8, 9 at their free ends, the terminals 1 ... 12 being interconnectible by removable links 2, 3 whereby the windings H1, H2, H3, T1, T2, T3 may be sequentially connected in five different arrangements to give progressively increasing motor speeds, the first arrangement consisting of a star connected to the supply RST and having a pair of series-connected main and additional windings in each limb, Fig. 1 (not shown); the second of a delta connection of windings T1, T2, T3 connected to the supply RST through windings H1, H2, H3, Fig. 2 (not shown); the third of a star of all six windings with only windings H1, H2, H3 connected to the supply, Fig. 3 (not shown); the fourth of a delta connected to the supply and having a pair of series-connected main and additional windings in each limb, Fig. 4 (not shown); and the fifth of a delta connection of windings H1, H2, H3 connected to the supply, with the free ends of windings T1, T2, T3 left unconnected, Fig. 5 (not shown). By providing the motor rotor with an external resistance, e.g. a starting resistance, each arrangement of windings may provide an approximately linear torque-speed characteristic, the intersections of these characteristics with the load characteristic of a pump or ventilator driven by the motor producing five sequentially increasing speeds corresponding to the five arrangements, Fig. 7 (not shown). The windings in each set are of equal impedance and, by making the impedance of each additional winding less than twice that of a main winding, the fourth winding arrangement carries more current than the third to increase the torque for a given speed of the motor.
Patent GB-1184085-A (GB)
Title: Threading Device for Sewing Machine
Inventor: EGUCHI YASUKATA
IPC: D05B87/02
Filed: 1967-03-13
Abstract: 1,184,085. Sewing machines, JANOME SEWING MACHINE CO Ltd. 13 March, 1967, No. 11758/67. Heading D1G. A sewing machine is provided with a needlethreader comprising a hook-carrying member pivotally connected to a vertically-slidable rod depressible against spring bias by a manually-operable member to carry said hook through the needle eye. As shown, a frame 6, pivoted at 23 to the machine casing 26 and slidably supporting the needle bar 15, is formed with lugs 6A, 6B slidably supporting a rod 5 parallel to the needle bar. Needle bar 15 carries a collar 14 connected by a pivotal link 20 to a crank pin on the machine arm shaft for reciprocating the needle bar. Rod 5 carries at its lower end a collar 4 and intermediately a finger piece 7. A bell crank lever 1, pivoted at 1c to collar 4, carries on one arm a hook 2. The other arm is connected by a rod 3 to one end of a lever 8 pivoted intermediately at 8c to finger piece 7. A spring 9, conected between rod 3 and finger piece 7, biases hook 2 away from needle bar 15. A spring 11, connected between pivot 1c and lug 6A biases rod 5 upwardly. To thread the needle 17, needle bar 15 is moved to its uppermost position and downward pressure is applied to fingerpiece 7 to engage the other end 8A of lever 8 with collar 14. Further pressure on finger piece 7 serves to pivot lever 8 and thereby advance hook 2 through the eye of needle 17 for the reception of thread therein. Pivoting of lever 8 is limited by the engagement of finger piece 7 with a stop plate 12 adjustably mounted on frame 6. In a modification (Fig. 7) a finger piece (7') is slidably mounted on rod 5, and is biased upwardly against a feed collar (10) by a spring (29) interposed between finger piece (7') and a fixed collar (28), while rod 3 is connected directly to finger piece (7'). Downward pressure on the latter engages a nose (10c on collar (10) with collar 14, when further pressure serves to slide finger piece (7') against the bias of spring (29) and thereby advance hook 2 through the needle eye, finger piece 7' finely engaging stop plate 12.
Patent GB-310037-A (GB)
Title: Turbine disk for radial flow steam turbines with an axial blade system
IPC: F01D1/24
Filed: 1929-04-16
Abstract: 310,037. Aktiebolaget Ljungstr÷ms Angturbin. April 21, 1928, [Convention date]. Combined-flow type; rotors. - Relates to the rotors of steam turbines having radial flow and axial flow sections, particularly turbines of the oppositely-running rotor type. The discs 5 carrying the blades 10, 11 of the axial system are held between shrunk-on rims 31, 32 which are secured to the inner blade carriers 3, 4 by hollow bolts 34. A modified arrangement of bolts 34 is shown in Fig. 3. The bolts are hollow and have grooves filled with lubricant to prevent seizing. Additional short bolts 36 are provided between the flanges of the rims 31, 32. Passages 22, 24 are provided for the intermediate admission or extraction of steam. Steam tapped at 24 may be used in a feed water heater. Labyrinth packings are provided at 18, 19, 26. Specification 270,952 is referred to.
Patent GB-847598-A (GB)
Title: Improvements in apparatus for monitoring the use of radio receivers
IPC: H04H60/32
Filed: 1956-07-18
Abstract: 847,598. Radio receiving apparatus. NIELSEN CO. Ltd., A. C. July 18, 1956 [March 16, 1956], No. 11785/60. Divided out of 847,596. Drawings to Specification. Class 40(5). The subject-matter is identical with that of Specification 847,596. Specifications 847,597, 847,599, 847,600 and 847,601 also are referred to.
Patent GB-315917-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F9/44
Filed: 1928-04-21
Abstract: 315,917. Newton, N. B. April 21, 1928. Fluid-friction vibration-dampers more particularly of the cylinder- and-piston type described in Specification 296,897, are constructed with a transfer passage within the cylinder and including one or more adjustable valves or jets in the outer cylinder head for controlling the flow through the passage. In the construction shown in Fig. 1, the piston a working in the cylinder b separates two compression chambers between which is arranged a transfer passage consisting of a tube n fixed to the cylinder head and extending into the hollow piston rod e. The tube n fits a bush k in the piston and its upper end communicates with the upper compression chamber through the hollow piston rod and passage e<3> in the walls thereof. The lower end of the tube n is connected to the lower compression chamber through a passage, the area of which may be varied by an adjustable needle valve p. In a modification, the tube n passes up through the piston towards one side of the cylinder. Two transfer passages may be provided each having a one-way valve independently adjustable so that the movement in either direction may be regulated independently of the other.