baber/WOPTO huggingface dataset:
Patent GB-393238-A (GB)
Title: The manufacture of iodo naphthol sulphonic acids
IPC: C07C309/43
Filed: 1933-02-27
Abstract: 1-iodo-8-hydroxynaphthalene sulphonic acids are obtained by customary methods from the diazotized 1-amino-8-hydroxynaphthalene sulphonic acids.  According to examples, 1 : 8-aminonaphthol-4-sulphonic acid, -4 : 6-disulphonic acid and -3 : 6-disulphonic acid are diazotized and treated with concentrated hydriodic acid or potassium iodide, and heated with or without copper bronze powder, when the conversion to 1-iodo-8-hydroxynaphthalene sulphonic acids occurs with evolution of nitrogen.
Patent GB-847292-A (GB)
Title: Improvements relating to cotterpins
IPC: F16B21/12
Filed: 1958-02-25
Abstract: 847,292. Cotters. WOLSELEY ENGINEERING Ltd., and DRAKE, R. S. May 22, 1959 [Feb. 25, 1958], No. 5979/58. Class 89(2). A cotter-pin 5 has a head 4 to which is pivoted in spaced-holes 6, 7, a wire keeper 8 biased by its pivotal-arrangement to abut the pin with its free-end 8<1>. Specification 714,394 is referred to.
Patent GB-142599-A (GB)
Title: Improvements in or relating to the manufacture of balls or floats for cistern valves; or analogous purposes
IPC: F16K33/00
Filed: 1919-03-11
Abstract: 142,599. Butcher, W., and Mason, J. W. V. March 11, 1919. Floats; materials, special.-Hollow balls or floats for cistern valves or analogous purposes are constructed of a waterproofed papier mÔchÚ and with an external or internal threaded boss a to which the valve-rod may be secured. Instead of a boss a, the ball may be provided with an internal hollow sleeve passing diametrically through the float. Specification 133,465 is referred to.
Patent GB-789544-A (GB)
Title: Improvements relating to the stopping of internal combustion engines
IPC: F01L13/00
Filed: 1955-03-01
Abstract: 789,544. Stopping. NORTH EASTERN MARINE ENGINEERING CO., Ltd., HUNTER, H., and YELLOWLEY, G. March 1, 1956 [March 1, 1955], No. 6035/55. Class 7(5) Each cylinder is provided with a pressure relief valve 14 and when the control 44 is in position II all the relief valves are open. During a second stage of stopping with the control in the position III the relief valve of cylinder 3 is closed. In engines having 7 to 12 cylinders two valves can be closed in the second stage of stopping. In the first stage of stopping the valves are opened from the time the fuel supply is cut off to the time when the engine speed has dropped to a crawl. The control 44 may be the reversing lever. The relief valves may be pneumatically or hydraulically operated. As shown the engine is a six cylinder opposed piston engine. The relief valves may be constructed according to Specification 745,714: The invention is applicable to compression ignition engines for driving large motor ships.
Patent GB-941088-A (GB)
Title: Blasting composition
IPC: C06B33/04
Filed: 1962-02-16
Abstract: Ammonium nitrate blasting compositions contain ferrophosphorus, preferably in an amount of 3-25% by weight. The ammonium nitrate granules may be of such a size that from 30 to 60% pass through a 100 mesh screen (Tyler), the remainder being sufficiently fine that 60 to 90% pass through a 65 mesh screen.  The ferrophosphorus used has a preferred composition of approximately 76% iron and 24% phosphorus by weight.  In the examples, other ingredients used in the blasting compositions are given as dinitrotoluene, calcium stearate (Ex. 1); calcium stearate, paraffin wax, sodium nitrate (Ex. 2); a coarser grade (95% held on 65 mesh) ammonium nitrate, resin, guhr, and dinitrotoluene (Ex. 4); sodium nitrate, fuel oil, pulverized coal, and attapulgus clay as an anticaking agent (Ex. 5).  These compositions are mixed hot when a nitro-body is present and poured into containers but ferrophosphorus can also be advantageously used in cold-mixed compositions.
Patent GB-224143-A (GB)
Title: Improvements in and relating to prepayment mechanism
IPC: G07F15/02
Filed: 1924-03-10
Abstract: 224,143. Anderson, J. March 10, 1924. Coin action, thrust and mechanical-connection. -In prepayment mechanism, particularly for gas meters, the rotary coin carrier comprises two cheeks open at the front and top, the bottom being formed by a plate f pivoted at x and con. trolled by a spring k. The top of the plate is curved at h to the contour of the coin and is provided with a tooth i which engages a depending lug m of a gravity pawl g pivoted at n to the back of the carrier. When a coin is inserted its periphery engages the outer casing wand depresses the plate f to engage the tooth i with a slot g on the lug m, the slot having bevelled edges r, y. This engagement causes a radial tooth o on the pawl g to enter the teeth of a measuring-out wheel p of the spur gear type and to be locked therein until the coin is discharged. The tooth o rides over the teeth of the wheel pwhen no coin is in the carrier. A price-changing, plate of the type described in Specification 208,181 is used.
Patent GB-644163-A (GB)
Title: Electric motor for shaver and the like
IPC: B26B19/28
Filed: 1948-02-17
Abstract: 644,163. Spools. DEHN, S. G. (Sunbeam Corporation). Feb. 27, 1948, No. 6099. [Class 120(iii)] [Also in Groups XIV, XXXV and XXXVI] The field winding of a dynamo-electric machine is wound on a spool which is split for ease of assembly. The two parts 54 are identical and have interlocking recessed portions 56, 57 which fit together without producing sharp edges or thickened. parts. The parts may be secured in position by an adhesive.
Patent GB-1190482-A (GB)
Title: Electric Sewing Machine.
IPC: H02P25/14
Filed: 1968-02-07
Abstract: 1,190,482. Control of A.C. motors. JANOME SEWING MACHINE CO. Ltd. 7 Feb., 1968 [7 Feb., 1967; 27 March, 1967; 25 Sept., 1967], No. 6160/68. Heading H2J. [Also in Divisions D1, G3 and H1] A commutator motor 3 is energized from an A.C. supply through a symmetrical semiconductor element SSSM using both wave omission and phase angle control. SSSM is made to conduct asymmetrically for positive and negative half-cycles by pulses from a pulse transformer P.T. in the primary of which is a similar semi-conductor SSST, the conduction of which is controlled by the setting of a potentiometer V.R. and the back e.m.f. of the motor.
Patent GB-1454512-A (GB)
Title: Apparatus for circulating molten metal
IPC: F27D99/00
Filed: 1973-02-08
Abstract: 1454512 Pumps operating by electromagnetic interaction with fluids ALCAN RESEARCH & DEVELOPMENT Ltd 31 Jan 1974 [8 Feb 1973] 6329/73 Heading H2A In an apparatus for circulating molten metal in a furnace an elongate vertical metal core 2 is protected from contact with the molten metal by a protective covering such as refractory sheath or nosepiece 1 or a refractory wash or coating. Electromagnetic coil 5 surrounds the core and is protected from the molten metal by an annular shield 6. 25 to 50% of the length of the core is disposed below the mid-point of the coil. In Fig. 1 the apparatus extends into a duct 3 of a refractory material with an outlet 10 and leaves an annular inlet 4. Partition wall 9 prevents communication of the bath with the outlet. Coolant for the coil may be provided therearound and can also be supplied to a channel 2a in the core. In Fig. 2, the nosepiece and core are positioned in a duct 23 mounted for movement on a ramp 25 having a trough 24 to allow adjustability of the position of the circulating unit dependant on the bath level. Duct 23 may be omitted. In a portable arrangement, Fig. 3, the unit is mounted on an angled duct by aprons 8, 9 and the whole apparatus may be lifted by eyebolt 14 connected to the unit by stainless steel straps 11. A circulation unit may be positioned in a side pocket (40, Fig. 4 not shown) in the furnace communicating with the bath by ports (48, 49) and with the outside by cleaning and maintenance ports (52, 53). (For Fig. 3 see next page.)
Patent GB-488306-A (GB)
Title: Manufacture of organic mercury compounds
IPC: C07F3/12
Filed: 1937-03-03
Abstract: Organo-mercury compounds are prepared by treating with an aryl-mercury hydroxide polyhydric phenols which either contain hydroxyl groups in ortho-position and no other substituents than hydroxyl groups or which contain hydroxyl groups in meta-position and also a side chain.  The products contain a free hydroxyl group and are soluble in dilute aqueous alkalies; they are useful as disinfectants, preservatives and seed-steeping agents.  Examples are given of the interaction of phenyl mercurihydroxide with (1) pyrocatechol in caustic soda solution, carbon dioxide being passed in to precipitate the product; (2) pyrocatechol, 1 - phenylethyl - 2 : 4 - dihydroxybenzene or pyrogallol in boiling water, the product then separating out.  Specification 329,987, [Class 2 (iii)], is referred to.
Patent GB-1496411-A (GB)
Title: Preparation of 2,5-dimethyl-3(2h)-furanone
IPC: C07D307/58
Filed: 1975-02-14
Abstract: 1496411 2,5 - Dimethyl - 3(2H) - furanone MONTEDISON SpA 14 Feb 1975 [15 Feb 1974] 6401/75 Heading C2C [Also in Division C4] 2,5-Dimethyl-3(2H)-furanone is made by subjecting diacetyl dimer to acid hydrolysis, the dimer being, if desired, prepared in situ by dimerizing diacetyl. IN,IN<SP>1</SP> - p - phenylene - bis - (5 - methyl - 3- pyrazolone) may be made by reacting the tetrazonium sulphate of p-phenylene diamine with 2,5-dimethyl-3(2H)-furanone. The product may be purified by treating with acetic anhydride and saponifying the resulting acetyl derivative.
Patent GB-267163-A (GB)
Title: Manufacture of ortho-amino-aldehydes and ortho-amino-ketones of the anthraquinone series
Filed: 1927-03-08
Abstract: 267,163. I. G. Parbenindustrie Akt.- Ges. March 8, 1926, [Convention date]. o-Aminoanthraquinone-aldehydes and ketones are obtained by treating anthraquinone-1 : 2- isoxazoles (see Specification 147,001), with reducing agents. The manufacture of these compounds may be combined with that of the isoxazoles. According to examples the following compounds are obtained : (1) 1-aminoanthraquinone-2-aldehyde from anthraquinone-1: 2-isoxazole; (2) 1- aminoanthraquinone-2-methylketone from anthraquinone-1: 2-methylisoazole (from 1-nitro-2- ethylanthraquinone); (3) 5-nitro-1-aminoanthraquinone-2-aldehyde from 5-nitroanthraquinone- 1 : 2-isoxazole (from 1 : 5-dinitro-2-methylanthraquinone); 1 : 5 - diaminoanthraquinone- 2 : 6 - dialdehyde and 1 : 8-diaminoanthraquinone-2 : 7-diadehyde from 1: 2: 5: 6- and 1: 2: 8: 7-anthraquinone-di-isoxazoles respectively; the di-isoxazoles are produced from the corresponding dinitrodimethylanthraquinones. The reducing agents specified are sodium hydrosulphite in ammoniacal solution, sodium bisulphite, ferrous sulpbate in acid solution, and aniling sulphate. The amino-aldehydes or -ketones dissolve in alkaline hydrosulphite and are reprecipitated from such solutions by air.
Patent GB-638337-A (GB)
Title: Improvements relating to vehicles with tipping bodies
IPC: B60P1/28
Filed: 1948-03-01
Abstract: 638,337. Tipping vehicles. MARKHAM TRACTION, Ltd., and WICKS, K. R. March 1, 1948, No. 6492. [Class 108 (i)] In a tipping vehicle the body 4 is normally locked to the chassis 1 by a spring-loaded catch 14, connected by a rod 21 to the piston rod 9 of the tipping jack by a pin 12 which engages lost-motion slots 13 in lugs 11 secured to the underside of the body, whereby the catch is unlocked automatically during the initial portion of the operative movement of the jack and locked during the final portion of the lowering movement of the jack.
Patent GB-650448-A (GB)
Title: Improvements relating to electron discharge tubes
IPC: H01J1/18
Filed: 1947-03-07
Abstract: 650,448. Thermionic valves. SYLVANIA ELECTRIC PRODUCTS, Inc. March 7, 1947, No. 6493. Convention date, May 6, 1942. [Class 39 (i)] A tensioning arrangement for a filament 4 comprises a hairpin spring having a middle portion 7 of V-shape and linear end portions 20, 21 which are deflected from the unstressed positions 15<SP>1</SP>, 16<SP>1</SP> to provide a predetermined tension. Tabs 5, 6 on the filament are welded to the spring and to a support 3. A second support 2 with welded cross-arms 11, 13 carries the spring, the ends of which are welded at 17, 18 where heating does not affect the tension of the filament. The filament 4 passes through triangular slots 31, Fig. 7, in upper and lower mica discs 27 between which the other electrodes 29, 30 are mounted, the filament being pulled into a corner of one slot and on to an edge of the other slot.
Patent GB-923037-A (GB)
Title: Improvements in or relating to compression refrigeration installations for air cooling
IPC: F25B41/04
Filed: 1961-02-22
Abstract: 923,037. Refrigerating. SOC. ANON. DES USINES CHAUSSON. Feb. 22, 1961 [Feb. 23, 1960], No. 6541/61. Class 29. Compression refrigerating apparatus for aircooling a motor vehicle cab, comprises at least two evaporators mounted in series one with another, with one of these evaporators acting for cooling the ventilating air and the second evaporator placed in thermic relation with the condensation section of the refrigerating circuit. The second evaporator is so selected that any non-evaporated liquid refrigerant coming from the first evaporator cannot be conveyed in a liquid form to the compressor inlet. A motor vehicle engine 1 with a radiator 2 and a fan 3 drives a compressor 5 by means of belts 4 and an electromagnetic clutch 16. The compressed refrigerant is condensed in condenser 7 and collected in a liquid state in a receiver 8. The refrigerant is then conveyed by a pipe 9, 9a to a pressostatic expansion valve 10 and an evaporator 11 and then by a pipe 14, 14a, to a second evaporator 15 which is also an integral part of the condenser 7. Cooling air for the engine is drawn by the fan 3 through the evaporator 15 where it is cooled, then through the condener 7 where it acquires heat from the condensing refrigerant, and then through the radiator 2. A fan 12 driven by a motor 13 blows ventilating air for the cab of the vehicle through the evaporator 11. A shunt tube 22 by-passing the second evaporator 15 for a valve 21 controlled by a thermostat 23 sensing the temperature of the refrigerant in the pipe 14a at the outlet of the evaporator 11, (Fig. 4). The valve 21 is opened when the temperature of the refrigerant leaving the evaporator 11 is too high, such as when starting up the apparatus. For permanently regulating the refrigeration, two thermostats 19 and 20 control two switches 19a and 20a respectively, placed in series in the electric circuit of the electromagnetic clutch 16. In a second embodiment (not shown), the second evaporator is placed in the refrigerant receiver 8.
Patent GB-305842-A (GB)
Title: Improvements in vehicle head-lamps
IPC: F21V7/00
Filed: 1928-03-02
Abstract: 305,842. Crook, E. W. March 2, 1928. Reflectors.-A vehicle lamp reflector comprises an upper half D adapted to reflect a beam of light which comes to a focus at a point X and then diverges to form a semi-circular beam G the diametric line of which is in the horizontal plane containing the centre of the lamp, and a lower half E which is closer to the source of light and is adapted to reflect a horizontal semi-circular beam of light which coincides with the beam G. Reference has been directed by the Comptroller to Specification 111,707.
Patent GB-671982-A (GB)
Title: Improvements in or relating to sink and like traps
IPC: E03C1/29
Filed: 1950-03-17
Abstract: 671,982. Sanitary traps. JENNINGS, H. G. F. June 2, 1950 [March 17, 1950], No. 6722/50. Class 33 A circular dip-plate trap has the inlet pipe 2 extending into a lower removable dish-shaped member 11, the inner surface of which is spaced apart from the outer surface of the upper part 9 to form an air seal for the liquidtight joint between the flanges 10, 22 of the upper part and the dish respectively. The dish may be made of glass or transparent plastic material.
Patent GB-466836-A (GB)
Title: Improvements in and relating to apparatus for producing electron streams of great energy
IPC: H02K29/00
Filed: 1936-03-05
Abstract: 466,836. Electromagnets. SIEMENS-SCHUCKERTWERKE AKT.-GES. March 5, 1936, No. 6725. Convention date, March 6, 1935. [Class 35] [Also in Group XL] Apparatus for producing electron streams of great energy comprises a varying accelerating magnetic flux #, Fig. 1, about which the electrons are accelerated in a circular path R; and a guiding magnetic field Hf coaxial with the accelerating field, which maintains the electron movement in the path R. To do this, the guiding field must vary with and be equal to half the mean value of the accelerating field. Further, to stabilize the electron path for small axial and radial disturbances, the guiding field must decrease outwardly from the centre, proportionally to an inverse power of the radius which is not more than 1 and preferably is equal to ¢. The two fields are produced by the same winding W excited by alternating current at 50 or 500 cycles per second, suitable air gaps being provided to maintain proportionality. Fig. 3 shows a single pair of polepieces shaped to produce both fields, the main part of the pole faces being produced by rotating hyperbolas 1, 2 about the axis a. The accelerating flux is strengthened to the required value by projecting portions A, B at the centre. The diameter of the electron path is made equal to the focal separation of the hyperbolas. To reduce leakage fields, the air gap between A and B may be divided into a number of gaps separated by magnetic material and possibly filled with non-magnetic material or the gaps may be filled with permeable material such as is used for " dust cores." The outer parts of the core may be dispensed with, any deviation from the hyperbolic law being compensated by reducing the separation of the boundaries of the core. The maintenance of the rotational symmetry of the fields is secured by design of the core laminations, which may be involute strips, bundles of wire or spirally wound sheets. The central space of the involute laminations may be filled with wire or spirals, high insulation being used in the spiral type to withstand the induced voltages. Permalloy or other high permeability alloy is preferably used. The return circuits for the magnetic flux should also be symmetrical, at least two side yokes being provided, with air-gaps adjustable to obtain exact symmetry. Fig: 10 shows an arrangement in which the accelerating flux # passes through a central core, while the guiding field comes from ring-shaped polepieces P provided with constrictions A. As the magnetizing current increases, the portions A become saturated and the lines of force are deflected into the central polepiece. The resultant weakening of the guiding field relatively to the accelerating field causes the electron ring to expand and burst. An additional field coil W is wound onto the central polepiece to enable faults of design to be corrected. A central powder core L is provided.
Patent GB-1172864-A (GB)
Title: Aluminium-Containing Chelates
Inventor: GROSSMITH FREDERICK
IPC: A61K31/00
Filed: 1966-02-16
Abstract: 1,172,864. Aluminium containing chelate. BEECHAM GROUP Ltd. 31 Jan., 1967 [16 Feb., 1966], No. 6735/66. Addition to 1,044,301. Heading C2C. The novel compound octasodium tetrakis (gluconato) bis-(salicylato) Á-diacetatodialuminate of the formula is prepared by the required stoichiometric amounts of acid, neutral or basic salts of sodium and aluminium and gluconic and acetylsalicyclic acids. Pharmaceutical compositions having analgesic activity contain the above novel compound.
Patent GB-1399843-A (GB)
Title: High frequency weld roll assembly
Inventor: MCLAIN C D
IPC: B23K13/02
Filed: 1973-02-12
Abstract: 1399843 Welding by pressure OLIN CORP 12 Feb 1973 [18 Feb 1972] 6791/73 Heading B3R A weld roll assembly for use in high frequency welding of metals, and particularly of copper and copper alloys to form longitudinally seam welded tube, comprises the following parts: a frame 20, at least two carriages 26 adjustably supported by the frame, and at least one rotatable shaft 30 with a weld roll 6 supported by each carriage, all of these parts (which in operation are exposed to the induction field of the heating means) being constructed from at least one non-magnetic metal or alloy of high conductivity, e.g. copper or copper base alloy such as aluminium bronze. The high frequency heating means may be an induction coil (Fig. 1, not shown) adapted to encircle the converging strip edges or contacts placed thereon. In order further to reduce induction and eddy current losses short-circuit paths within the roll assemblies may be eliminated by interposing insulating members 70, 71, 72, Fig. 3, between relatively stationary components of the assembly.
Patent GB-239788-A (GB)
Title: Improvements in and relating to toy roundabouts
IPC: A63H13/20
Filed: 1925-03-12
Abstract: 239,788. Marks, E. C. R., (Paraffine Cos., Inc.). March 12, 1925. Addition to 239,399. Folding models; roundabouts.-In a toy constructed from paper &c., according to the parent Specification, a ring 106, on which toy figures 141 may be disposed, is supported by hangers 111 from the arms of the rotor carried by the spindle. The toy figures are folded 'to provide a base with tongues 157, which engage slits 121 in the ring 106. A canopy 123 may be provided.
Patent GB-382849-A (GB)
Title: Apparatus for separating air from water in steam condensers and like heat exchange apparatus
IPC: F28B9/04
Filed: 1932-03-07
Abstract: 382,849. Surface condensers. MEURK, B., 125, Summit Avenue, Upper Montclair and KENNEDY, W. M., 335, Lyndhurst Avenue, Lyndhurst, both in New Jersey, U.S.A. March 7, 1932, No. 6822. [Class 64 (iii).] Air and oxygen separated from cooling water by directing it over and through perforated baffle plates 26 in the inlet compartment of a header 24 divided by a partition 32 are led off through tubes 38 opening into flared orifices 36 in the partition. The flow of escaping air may be accelerated by jets of cooling water directed into the orifices. The tubes 38 are connected to a pipe 40 terminating either in the water outlet pipe 52 or outside the condenser. The baffles plates are made of soft steel or similar ferrous material electropositive to the metal of the condenser tubes.
Patent GB-370595-A (GB)
Title: Improvements in or relating to attachment and suspension devices for brooches, medals, badges, or the like
IPC: A44C3/00
Filed: 1931-03-06
Abstract: 370,595. Attaching brooches, medals, &c. to wearing-apparel safety-pins &c. GAUNT, C. F., Warstone Parade Works, Birmingham. March 6, 1931, No. 6975. [Class 43.] An attachment or suspension device for brooches, medals and the like is constructed from a metal blank, Fig. 5, bent to form two overlapping jaws 6, 7 of substantially equal size and between which a medal ribbon 2, Fig. 2, or other decoration may be gripped, the blank having lugs 9, 10 integral with the front portion 7, but bent out of the plane thereof so as to constitute a catch 11 and a hinge 12 for a securing pin 8. A medal 4 may be secured to the ribbon by a suspension bar 3 formed with two arms 17, 18 for engaging the ribbon and an integral eye or loop 16 adapted to engage an aperture 19 in the medal. The lugs 9, 10 are adapted to be bent rearwardly to overlap the edge of the portion 6. The pin is bent to engage the hinge 12 and its tail is bent in to engage the back portion 6. The suspension bar may be made of wire or strip material. The arms 17, 18 may abut or overlap. The front 7 may be engraved or otherwise decorated and the pin fitting may be used alone as a brooch or for gripping any decoration.