baber/WOPTO huggingface dataset:
Patent GB-1331156-A (GB)
Title: Welding bead follower
IPC: B21C37/08
Filed: 1971-09-17
Abstract: 1331156 Automatic position control VALLOUREC USINES ATUBES DE LORRAINE - ESCAUT ET VALLOUREC REUNIES 17 Sept 1971 [17 Sept 1970] 43463/71 Heading G3R Apparatus, e.g. weld checking apparatus, mounted on a frame, rotatable about the axis of a welded tube, is maintained centred about the welding bead on the tube by two identical magnetic detectors mounted on the frame, one on each side of the bead, the detector outputs being differenced providing a position error signal to control a motor driving the frame. In an embodiment, the detectors 34, 36 are mounted on a rotatable frame 10, driven via gearing 16 by motor 18. Each detector Fig. 2 (not shown) comprises a ferro-magnetic C-shaped core with a primary winding fed from oscillator 50 e.g. at 70 Hz, and a secondary winding, whose output varies with the reluctance of the core airgap i.e. with the permeability of the tube 12 or bead 14 adjacent the air-gap. The outputs 26, 28 from each detector are differenced by an impedance bridge and fed through amplifiers 60, 64, with gain control 62, to a demodulator 66, providing a D.C. error signal. This is fed through amplifiers 72, 74 to control the motor 18, the loop having stabilization by a rate feedback signal from dynamo 76. Potentiometers 52, 54 in the impedance bridge are adjusted to give zero error signal when detectors 34, 36 are symettrical with respect to the bead.
Patent GB-970917-A (GB)
Title: Hydraulic pit prop
IPC: E21D15/44
Filed: 1962-11-20
Abstract: 970,917. Hydraulic pit props. H. J. RHEINBAY. Nov. 20, 1962, No. 43857/62. Heading E1E. In an hydraulic pit prop having a charging valve 12 and a combined relief/release valve 13 the valves are mounted in a common disconnectable housing 8 having a base 9 disposed transverse to that of the axis of the pressure chamber and communicating therewith by a T-connection as shown, the valve 13 controlling communication between the pressure chamber and an annular chamber 16 having a vent 17.
Patent GB-1379404-A (GB)
Title: Polymerisation process
IPC: C08F2/18
Filed: 1971-09-21
Abstract: 1379404 Suspension polymerization of vinyl chloride BP CHEMICALS INTERNATIONAL Ltd 29 Sept 1972 [21 Sept 1971] 43879/71 Heading C3P Vinyl chloride is polymerized in suspension in the presence of an amphoteric surfactant as sole suspending agent. Preferred is dodecyl/myristyl betaine.
Patent GB-1153857-A (GB)
Title: A Multi-Pole Plug
IPC: H01R13/46
Filed: 1966-09-30
Abstract: 1,153,857. Two-part couplings. SIEMENSSCHUCKERTWERKE A.G. 30 Sept., 1966 [30 Sept., 1965], No. 43928/66. Heading H2E. In a multi-pole plug 1, contact elements with resilient bifurcated parts 6, 7 enable conductors connected at 7 to be connected through contact parts 6 to a series of socket blades (12) (Fig. 6, not shown). The insulating body 2 of the plug has a projecting strip 8 which houses the contact parts 6 in compartments having slots 11 for blades (12) to pass through. A resilient insulating cover 3, held to the body by detents 4, engages the contact elements to hold them in position. The plug is provided with a retaining extension 18 and a detent 16 which are illustrated in use (Fig. 6, not shown).
Patent GB-1430739-A (GB)
Title: Disazo dyestuffs
IPC: C09B35/08
Filed: 1974-10-11
Abstract: 1430739 Disazo dyes BAYER AG 11 Oct 1974 [12 Oct 1973] 44169/74 Heading C4P Novel dyes of Formula I where K is the radical of 2-hydroxynaphthalene- 8-sulphonic acid, 1-hydroxynaphthalene-3- sulphonic acid, 1-hydroxynaphthalene-5-sulphonic acid or 2-amino-8-hydroxynaphthalene- 6-sulphonic acid are prepared by azo coupling. The dyes and their salts give red shades when used to dye natural and synthetic fibre materials, especially polyamides.
Patent GB-1169470-A (GB)
Title: Control Circuit for a Resistance Welder.
IPC: B23K11/24
Filed: 1967-09-28
Abstract: 1,169,470. Control systems for resistance welding apparatus. SQUARE D CO. 28 Sept., 1967 [17 Feb., 1967], No. 44177/67. Heading H2H. A resistance welding system in which a plurality of solid state bi-stable flip-flop switching circuits are used to control the various parts of the welding operation, there being as many flip-flop switching circuits as there are parts of the welding operation as is disclosed in Specification 1,028,877 modified by the omission of one flip-flop switching circuit and the inclusion of a logic decoding device comprising a transistor, the logic decoding device being used to time the squeeze period of the welding operation whilst the weld, hold and off periods are timed by the respective flip-flop switching circuits.
Patent GB-443266-A (GB)
IPC: G03C7/14
Abstract: 443,266. Reproducing images on lenticular films. OPTICOLOR AKT.-GES., Glarus, Switzerland. Jan. 17, 1935, No. 1635. Convention date, Jan. 19, 1934. Addition to 436,608. [Class 98 (ii)] The plane reflecting surfaces pertaining to any one objective in the system of the parent Specification are arranged so as to produce a complete or partial rectification of the inversion produced by the objectives. Fig. 1 shows a section through a copying element consisting of three objectives 1 combined with plane mirrors 4 and optical squares 5. The system produces an image 9 of the object 8 in which the top and bottom correspond but the right and left hand sides are interchanged. Fig. 6 shows one element of a similar system employing two angular mirrors 16, 17. In this case the image 8 and object 9 correspond completely. The objectives are arranged so that their apertures are seen from the films in directions corresponding to the zones of the filter used in taking and are normally in a straight line at right angles to the direction of the lenticular elements. The systems may also be used for reproducing stereoscopic images on lenticular films.
Patent GB-1272329-A (GB)
Title: Ureido dyes
Inventor: KALOPISSIS GREGOIRE
IPC: C07C275/14
Filed: 1969-09-08
Abstract: 1,272,329. Hair dyeing compositions. L'OREAL. 8 Sept., 1969 [9 Sept., 1968; 16 Jan., 1969], No. 44380/69. Heading D1B. [Also in Division C2]  Oxidation bases, used in hair dyeing compositions, have the general formula 5 wherein R 1  and R 2  are each H, halogen, alkyl or alkoxy; 2 is oxygen or sulphur and n is an integer from 2 to 4. Their acid addition salts may be used. The compositions which may be in the form of an aqueous solution, cream, gel or aerosol are preferably alkaline at pH 8 to 10 and comprise an oxidation base, preferably 0.1 to 10% by weight, a carrier and at least one coupler, e.g. m - aminophenol, 3 - N - carbamylmethylamino - phenol, resorcinol, m - phenylene diamine, 2,4 - diamionanisole sulphate or 3 - hydroxyphenylurea. The molar ratio base : coupler is preferably 1:1 to 1:4. Other conventional adjuvants include dyestuffs, wetting, dispersing or penetrating agents and the compositions are applied together with an oxidising agent, e.g. hydrogen peroxide by contacting the hair for 5 to 30 minutes followed by rinsing, shampooing and drying.
Patent GB-1491883-A (GB)
Title: Four stroke internal combustion engine
IPC: F02M25/07
Filed: 1974-10-14
Abstract: 1491883 Cylinder intake systems YAMAHA HATSUDOKI KK 14 Oct 1974 [24 May 1974 26 June 1974 12 Aug 1974] 44383/74 Heading F1B In a four-stroke I.C. engine having respective inlet and exhaust ducts and valves for each cylinder, a separate mechanism, e.g. a carburetter or injector, with a throttle valve for introducing air/fuel  mixture into each inlet duct and passage means inter-connecting the inlet ducts, means are provided for restricting flow between the inlet ducts via the passage means. The restricting means prevent the different pressures existing in the inlet ducts during engine operation at low loads from having a detrimental effect on the pressure in the inlet duct whose inlet valve is open and the cylinder piston is completing its exhaust stroke. Thus scavenging of the associated cylinder is improved, whereby the engines will operate on leaner mixtures at low loads to reduce the quantity of pollutants in the exhaust gases. In the Fig. 3 embodiment an exhaust gas recirculation system is incorporated in a four cylinder engine. Gas is tapped at 44 from an exhaust reactor 40 and is supplied to the four inlet ducts via cooler 45,  control valve 46, recirculation valve V and respective pipes 13a-d. The valve V provides the restricting means of the invention and functions to close during low loads to isolate the pipes in response to the suction in one of the inlet ducts, the suction being communicated to valve-actuating diaphragm-chamber 205 via a line 12e. Similarly, the control valve 46 is controlled by the suction communicated through line 12e. In another embodiment where the gas recirculation system is omitted but the inlet ducts are nevertheless interconnected by passage means, the latter are provided with a number of restricted orifices (209), Fig. 4 (not shown), which function as the restricting means.
Patent GB-1089599-A (GB)
Title: Polyether hydraulic fluids
IPC: C07C41/02
Filed: 1966-10-05
Abstract: Hydraulic fluids comprise poly-(oxyethylene-oxy-1,2-propylene) glycol monoalkyl ethers with a content of oxypropylene groups ranging from about 20-33% by weight of total oxyalkylene groups, prepared by condensing methanol or ethanol first with ethylene oxide and then with 1,2-propylene oxide (see Division C2), optionally with known additives, e.g. anti-corrosion additives such as alkali metal salts of weak acids, fatty amines and alkanol amines and anti-oxidation additives such as phenols and aromatic nitrogen derivatives. Specified additives include n-dibutylamine, diphenylolpropane, mercaptobenzothiazole, quinol monobenzyl ether and a borax glycol condensate.ALSO:Poly - (oxyethyleneoxy - 1,2 - propylene) - glycol methyl or ethyl ethers are made by reacting 1,2-propylene oxide, preferably in the presence of an alkaline catalyst such as 0.1 to 1.0% by weight of total reagents of soda or potash at a temperature of 80-200 DEG  C. and a pressure of from 5 to 10 kg. per sq. cm., with ethylene glycol methyl ether to produce a condensate having an average molecular weight of from 175-215 or with an ethylene glycol ethyl ether to produce a condensate having an average molecular weight of from 190-230, the ethylene glycol methyl ether or the ethylene glycol ethyl ether having been prepared by the reaction of ethylene oxide with methanol or of ethylene oxide with ethanol respectively and the weight ratio of the quantity of propylene oxide condensed to the quantity of ethylene oxide used to prepare the ethylene glycol ether being from 20: 80 to 33: 67 and being such that the product has the desired molecular weights.  The products are used as hydraulic fluids (see Division C5).
Patent GB-1058496-A (GB)
Title: Improvements in or relating to electrical conductors and their manufacture
Inventor: REES PATRICK
IPC: H01B1/00
Filed: 1964-11-02
Abstract: 1,058,496. Making electric conductors. ROSEMOUNT ENGINEERING CO. Ltd. Aug. 23, 1965 [Nov. 2, 1964], No. 44621/64. Heading B3A. [Also in Division H5] A method of making an electrical conducting device having parts of varying resistance per unit length comprises the steps of fitting an inner tube of electrically conducting material on to an electrically conducting wire, surrounding the tube and wire with an insulating sleeve and fitting an outer metal tube around the sleeve. A heater made according to the invention comprises a nickel chromium alloy wire, which may be silver plated, over portions of which are fitted nickel tubes which are drawn down on to the wire, cold welding with it. A sleeve of braided or woven silica fibre is then fitted, and an outer protective metal tube is drawn down on to the assembly to produce a heating element of constant outside diameter and which becomes heated along parts only of its length. Such a heater may be used for heating corrosive fluids, in the presence of high levels of nuclear radiation or vibration, for the air intake of an aircraft engine, or for heating a Pitot tube. Where several heating circuits are required in a single cover more than one assembly of wire, inner tube and insulating sleeve may be fitted inside a single outer protective tube.
Patent GB-1243820-A (GB)
Title: Improvements relating to measuring apparatus
IPC: G01B3/00
Filed: 1968-09-20
Abstract: 1, 243, 820. Moving measuring feelers. ROBERT BOSCH G. m. b. H. Sept, 20, 1968 [Sept. 22, 1967], No.44715/68. Heading G1M. A movable measuring feeler (not shown) is pressed against a test piece by movement of a thread 14 which is pulled when compressed air controlled by regulator 12 and pressed into space 11 acts on the end of the differential piston portion 3b and moves the whole piston 3a, 3b, 3c to the left. The piston is supported by compressed air bearing nozzles 5 and the end chambers 7 and 8 are vented to atmosphere by way of passages 9.
Patent GB-1280144-A (GB)
Title: Improvements in or relating to electric cable glands
Inventor: HAMBLIN BRIAN DAVID
IPC: H02G3/06
Filed: 1968-09-20
Abstract: 1280144 Cable glands HAWKE CABLE GLANDS Ltd 23 July 1969 [20 Sept 1968] 44754/68 Heading H2E An electric cable gland comprises a body 5 of conductive material, for securing to a junction box, &c., an aperturd cap 8 screwed on to the body and a separate sleeve 12, spigoted into the body and acted on directly or indirectly by the cap to compress a sealing washer 14 around a sheath of the connected cable 10, the body 5 having an integral earth tag 25 to which an earth lead may be attached, e.g. at a tapped hole 26. As shown, the body 5 has a threaded end 6 for engagement with a junction box, &c. alternatively, the threaded end 6 may have a plain extension (27), Fig. 3 (not shown), with a lipped end to accept a splitter shroud, &c. The body 5 illustrated is of generally sixsided shape through the plane of the earth tag 25, Fig. 2 (not shown), alternatively it may be of oval shape one side of the oval providing the earth tag. The washer 14 may be of synthetic rubber, or alternatively of lead. A hollow adapter (29), Fig. 4 (not shown), having internal and external threads, may be screwed on to the threaded end 6 of the body 5, to provide a plain end (32) of reduced diameter. As shown, tightening the cap 8 grips cable armouring 17 via a sleeve 19 against a frusto-conical surface 16 of the sleeve 12, to force the spigot 13 of the latter into the socket end of the body 5, and a second cap 22 is tightened on to the first cap 8 so that a second washer 20 seals around the cable 18; for cables with two layers of armour, a further sleeve may be provided. If the gland is to be used with unarmoured cables, the flange 15 and frusto-conical surface 16 are omitted from the sleeve 12, which instead has an enlarged head for engagement directly by the cap 8.
Patent GB-1463446-A (GB)
IPC: F27D7/06
Filed: 1975-10-29
Abstract: 1463446 Preventing oxidation of molten zinc SOC MINIERE ET METALLURGIQUE DE PENARRDYA 29 Oct 1975 [31 Oct 1974] 44777/75 Heading C7X The oxidation and "scale" formation of liquid zinc maintained for long periods at temperatures over 500C by flame impingement in, for example, reverbatory furnaces, where the fuel is natural gas may be prevented or significantly reduced by the addition of 0À01 to 0À04% by volume of SO 2  to the furnace atmosphere. The preferred method of addition of the SO 2  is to the primary combustion air in the fuel burner, and optimum results are obtained when the free oxygen content of the furnace atmosphere is restricted to less than 1À5 per cent by volume. The SO 2  may be obtained from low grade gases from a lead foundry, or may be from the combustion of any sulphur-containing material.
Patent GB-1275933-A (GB)
Title: Improvements in wrapping machines
IPC: A01J21/02
Filed: 1969-09-11
Abstract: 1275933 Wrapping machines SCHWEIZERISCHE INDUSTRIE-GES 11 Sept 1969 [12 Sept 1968] 44796/69 Heading B8C A machine for moulding and wrapping butter or margarine comprises a stepwise rotatable mould wheel 8 mounted on shaft 5 and having a plurality of mould cavities 9 into which the butter or margarine is delivered a stepwise rotatable wrapping wheel 19 mounted on a shaft 26 lying at right angles to the mould wheel shaft and having a plurality of pockets for accepting the moulded blocks 17 together with a length of wrapping 32, and a gear unit for driving both shafts in synchronism in a stepwise manner. The gear unit comrises a Geneva wheel 39 rotatably-mounted on the shaft 5 and intermittently driven in 30 degree steps by a pin 37 mounted on a gear wheel 35 and engageable in the slots 40 of the Geneva wheel, an arcuate cam 41 on the gear wheel locking the Geneva wheel and a motor-driven pinion 34 driving the gear wheel. A planetary step-down gear train, comprising sun, planet and ring gears 48, 46 and 49, is provided between the Geneva mechanism and the main shaft 5 to produce the necessary 90 degree steps for mould and wrapping wheels having four mould cavities 9 and pockets. Butter or margarine is delivered along a pipe 14 by centre-rotating screws (not shown) and is forced into a mould wheel cavity positioned at the pipe exit until a ram 10 has its stop 13 raised into abutment 12. The filled cavity is rotated stepwise through two 90 degree steps until it is stopped above a pocket 30, Fig. 2 (not shown), of the wrapping wheel whereupon ram 10 is pushed down by a lever 18 to eject the moulded block 17. The block falls down into a wrapping wheel pocket and takes a wrapping 32 with it, the wrapping being partially folded therearound by entry of the block into the pocket. Folding is completed on further wheel rotation by means (not shown) and the wrapped moulded block discharged to a conveyor (not shown). A plate 24 prevents the moulded block 17 from falling out of its cavity during the first and second 90 degree mould wheel rotational steps and prevents the rams 10 falling out during the third and fourth rotational steps.
Patent GB-1076670-A (GB)
Title: A stabilised aqueous hydroxo cobalamin solution
IPC: C07H23/00
Filed: 1965-10-22
Abstract: A stabilized aqueous hydroxo cobalamin solution is obtained by adding iodine and/or a metal iodide and/or an iodine halide. Specified iodides and halides are NaI, KI, LiI, CaI2, MgI2, KI3, ICl3 and IBr3. In examples hydroxocobalamin or its acetate is used and optional ingredients present are other vitamins, amino acids and neutralizing agents, e.g. vitamin B, vitamin B2, vitamin B6, nicotinamide, panthenol, thiamine, ethyl aminobenzoate, benzyl alcohol, Na2H PO4, KH2PO4, NaOH, CH3 CO2H and CH3 CO2 Na.  The preparations may be injected or administered orally in the treatment of anemia.
Patent GB-1324529-A (GB)
Title: Rope traction apparatus
IPC: B66D3/02
Filed: 1970-09-23
Abstract: 1324529 Rope grips A ZELLER 23 Sept 1970 [25 Sept 1969] 45360/70 Heading F2X A rope traction apparatus for gripping and pulling a metal rope of the type provided with two gripping means in line comprises a casing 1 having a guide opening 4 on the side towards the load and an anchoring means 3 on the opposite side. An operating handle 5, manipulated by hand, is pivoted on an axis 6 within the casing 1. When the handle 5 is turned away from the load (i.e. towards the left) a long side-plate 7a moves in the same direction while a short side-plate 7b moves towards the right. Long levers 9a, 9b and short levers 10a, 10b are connected together by bearing 11a, 11b, 12a and 12b on the sideplates 7a, 7b. By means of pairs of pivot bearings 13a and 13b, 13c and 13d, 13e and 13f, and 13g and 13h, each lever is connected with a pair of jaws 14a, 15a and 14b, 15b with the bearings 13a-13d and 13e-13h forming the corners of parallelograms. Two springs 16, each connected to a side-plate at 17a, 17b, produce a preliminary pressure urging the levers 9a, 10a and 9b, 10b into a position so that the rope, from the start, may act upon the jaws. When the handle 5 is moved to the left, the jaws 14a, 15a also move to the left and grip the rope with the area of the parallelogram formed by the pivot bearings 13a-13d decreasing, while the jaws 14b, 15b move to the right and release the rope with the area of the parallelogram formed by the pivot bearings 13e-13h increasing. When the handle 5 is moved to the right, the reverse occurs. In order to move the rope to the right, i.e. to let down the load, a reverse handle 18 is operated; it is linked with the levers 9a, 9b through bearings 19a, 19b and an intermediate lever 20. On operation of the handle 18, when the levers are in gripping inclination, the jaws move back instead of advancing. When a lever 21 is moved clockwise, both pairs of jaws are opened whereby a rope without a load can be easily introduced between each pair of jaws.
Patent GB-1377015-A (GB)
Title: Tube bending device
IPC: B21D7/025
Filed: 1972-10-02
Abstract: 1377015 Bending tubes B G FJALLSTROM 2 Oct 1972 [30 Sept 1971] 45392/72 Heading B3E  A tube bender comprises a grooved anvil 7 and an abutment member 4, one of which is movable about the other, and a flexible chain of blocks 2 each provided with rollers bearing on the abutment member and a groove co-operating with that on the anvil so that a tube may be bent by wrapping the chain about the former. As shown, a fixed frame 8 supports the grooved anvil 7 on which is pivoted a lever 6 supporting the abutment member 4 on pivot 14. Rollers 5 of the chain of elements 2 bear on member 4, and terminate in a wedge block 1 reacting against a fixed block 8<SP>1</SP> to clamp a tube 12 on to the anvil. The other end of the chain is attached to an arm 13 pivoted on lever 6 at 16, and the chain is tensioned by wire 11 and hydraulic cylinder 9. As lever 16 is rotated about pivot 15, the chain rolls round member 4 and is wrapped round anvil, bending the tube.
Patent GB-1097376-A (GB)
Title: Basic refractory shaped articles
IPC: C04B35/03
Filed: 1966-10-11
Abstract: A chemically bonded basic refractory contains 1-4% of rounded grains containing pores of a size not greater than 400 m  and obtained by atomizing liquid pig iron.  With magnesia as the base, a spinel is formed from the iron oxide which results in an oxidizing furnace atmosphere. Combinations of magnesia and chromite are also specified as base material.  A boron compound and sulphuric acid or magnesium sulphate are optionals.
Patent GB-1458182-A (GB)
Title: Connector for optical fibres
IPC: G02B6/38
Filed: 1975-10-31
Abstract: 1458182 Optic fibre connector COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 31 Oct 1975 [13 Nov 1974] 45555/75 Heading G2J Optical fibres 1, 2 are abutted in the bore 7 of a synthetic jewel 8 based on alumina. Further such jewels 10, 11 may be used in the two part connector to guide the fibres.
Patent GB-1508158-A (GB)
Title: Methods of producing coloured anodised materials
IPC: C09B57/00
Filed: 1975-11-04
Abstract: 1508158 Colour anodizing aluminium RIKEN KEIKINZOKU KOGYO KK 4 Nov 1975 [5 Nov 1974] 45708/75 Heading C7B Al (alloy) is colour-anodized in 8-30 wt. per cent H 2 SO 4  containing 3-5 g/l Al<SP>3+</SP> as a resistivity control agent using pulsating voltage with peaks of 25-45 V and a duration of 5-70 m sec. The ratio of pulse frequency (per m. sec) to duration is 2-7, and the current density may be 2-8 A/dm<SP>2</SP>. The Al alloy may contain Zn and Mg in a Zn/Mg ratio < 5. Conventional washing and degreasing are used, but pre-etching in NaOH may be omitted. Pulses of alternating polarity may be used.