baber/WOPTO huggingface dataset:
Patent DK-73885-A (DK)
Inventor: BAUM HELMUT
IPC: H01F17/00
Filed: 1985-02-15
Abstract: An inductive element, in particular a transformer, is provided with at least one coil 2, 3 which is arranged on an insulating fixing plate 1 as printed conductive paths 10, 11, 12, 13 and a closed ferrite core 6. The insulating fixing plate 1 is constructed of a flexible material which after being deformed springs back into its flat position. In the insulating fixing plate 1 there are openings 4, 5 for taking the ferrite core 6 and there are arranged insertion slits 7, 8 for the core 6 opening out into the openings. The narrow piece 15 taken through the ferrite core 6 and the area 16 of the insulating fixing plate 1 bordered by the two slits 7, 8 lying beside each other form a sprung tongue 17, which tongue can be lifted out of the plane of the insulating fixing plate 1 for insertion of the core 6 in the openings 4, 5 and which after being released springs back as a result of its flexibility, whereby the narrow tongue piece 15 centres the ferrite core 6 in the openings 4, 5 and holds it in position. <IMAGE>
Patent GB-431335-A (GB)
Title: Improvements in or relating to mouthpieces for compressed gas burners
IPC: F23D14/58
Filed: 1934-01-01
Abstract: 431,335. Gas burners. BORNKESSEL, P., 16, Bahnstrasse, S³dende, Berlin. Jan. 1, 1934, No. 103. Convention date, Jan. 2, 1933. [Class 75 (i)] An atmospheric gas burner, adapted to be supplied with gaseous mixture under pressure, is provided in the outlet with two discs b, c having one or more apertures e, a ring of smaller apertures f for auxiliary or ignition flames being arranged around the main outlet apertures e in the outer disc b. The apertures e in the disc b may be aligned with, or staggered in relation to, the apertures in the disc c. The sum of the cross-sectional areas of the apertures in the disc b must be at least as great as that of the apertures in the disc c. The discs may be fitted in annular grooves, or supported on projections or steps, in the burner casing a, or they may be screwed, or secured by screws, in the casing, the depth of the pressure-reducing space d being adjusted by means of rings of different depth. One or more wire gauzes may be inserted between the discs.
Patent GB-591281-A (GB)
Title: Improvements in and relating to lawn-mowers and the like
IPC: A01D34/42
Filed: 1945-01-02
Abstract: 591,281. Lawn-mowers. BOOTON, C. F. Jan. 2, 1945, No. 108. [Class 6. (ii)] [Also in Group VIII] The small roller of a lawn-mower comprises a number of sections 3 rotating on a common axle 1, each section being provided with a selflubricating bearing 4 and sealing washers 7 having flexible lips which prevent the ingress of dirt. The self-lubricating bearing 4 comprises a bush, of sintered bronze, surrounded by an oil-soaked felt pad 6 which occupies an oilfilled cavity 5 in the roller. The end faces of each roller are recessed to accommodate rubber sealing washers 7, the flexible lips of which rub on the axle as the roller rotates. Additional sealing against dirt is provided by felt washers 8 housed in caps 9 pressed into the recesses in the rollers 3. The roller sections are spaced apart by sleeves 2. In a modification, plain bearing bushes are used, each bush being drilled with radial holes to permit the feeding of lubricant from the oil reservoir 5.
Patent GB-1445838-A (GB)
Title: Method of making surface active materials
IPC: C09D1/08
Filed: 1973-01-01
Abstract: 1445838 Surface active compositions W GLASER 28 Aug 1973 [23 Oct 1972 20 Nov 1972 1 Jan 1973 19 March 1973] 48773/72 53634/72 113/73 and 13009/73 Heading B1E [Also in Divisions Cl and C3] Surface active materials are made by adding a) hydrated FeSO 4  and/or hydrated MaSO 4  and b) FeS and/or ZnS to the precursors of polyurethane foam, reacting the precursors to form the foam and heating the foam to a temperature sufficient to carbonise the foam and decompose the hydrated sulphate. Other catalytic metals may be incorporated by adding to the foam precursors thermally decomposible compounds of such metals (e.g. sulphates of V or Ni, chlorides of Pt group metals), oxides of catalytic metals or, in the case of Pt group metals, the elemental metal.
Patent GB-620084-A (GB)
Title: Improvements in teat cups for milking machines
IPC: A01J5/06
Filed: 1947-01-03
Abstract: 620,084. Cow milkers. AKTIEBOLAGET SEPARATOR, and ERLING, S. J. Jan. 3, 1947, No. 249. [Class 84] A milking teat comprises a rigid casing 1 surrounding ar elastic teat liner 2 that , has mounted on it towards the lower end a metal ring 3, the inner diameter of which. is smaller than the outer diameter of the liner so causing a contraction o: the liner wall that prevents the ring from slipping. The liner is stretched within the casing by the downward movement of the enlarged head 5 of a rod 4 which engages the liner in the vicinity of the ring 3. When the end of the liner projects beyond the lower orifice 7 of the casing it is clamped in position by a conical outlet 6, inserted from the outside, and the rod is withdrawn. In a modified form there is moulded on the liner 2 above the ring 3 a shculder to prevent the ring slipping.
Patent GB-615908-A (GB)
Title: Manufacture of furane derivatives
IPC: C07D307/42
Filed: 1946-01-03
Abstract: Furane derivatives of the general formula <FORM:0615908/IV(b)/1> wherein R2 represents-CO.Hal or -NHCOOR3 (R3 being alkyl, aralkyl or aryl), x is a whole number (especially 4), and R represents hydrogen, a carboxyl group or, as a substituent convertible (and, if desired, subsequently converted) to a carboxyl group, a carboxylic acid ester or amide group, an aldehyde or acetal group, a nitrile group (convertible by heating with an acid such as hydrochloric or sulphuric acid), a primary carbinol group (convertible by oxidation with chromium trioxide in acetic acid or with potassium permanganate in alkaline solution, an esterified primary carbinol group, or a halogen atom (convertible by treatment with an alcoholic solution of potassium cyanide and hydrolysis of the resulting nitrile), are manufactured from furane-3 : 4-dicarboxylic acids containing in the 2-position the grouping -(CH2)xR (wherein the substituent R may be protected by conversion into a suitable derivative, e.g. an ester or amide in the case of a carboxyl group, an ester in the case of a carbinol group, or an acetal or thioacetal in the case of an aldehyde group), by treating such compound with a halide or oxyhalide of phosphorus or an oxyhalide of sulphur to form the corresponding acid halide and, if desired, treating this with an alkali metal azide and converting the resulting azide into the diurethane by the action of an alcohol or phenol.  In examples: (1) 3 : 4-dicarboxy-2-furane-n-pentanol is esterified with acetic anhydride in pyridine and the acetate is heated with thionyl chloride, the acid chloride formed is treated with sodium azide, the resulting azide is warmed with ethyl alcohol and the product saponified for form 3 : 4-di-(carbethoxyamino) - 2 - furane - n - pentanol, which is oxidized to the corresponding n-valeric acid; (2) 2-methyl - 3 : 4 - dicarboxyfurane is similarly converted to 2-methyl-3 : 4-di-(carbethoxyamino)-furane; (3) the ethyl alcohol in (2) is replaced by phenol (the reaction being effected in benzene solution), producing 2-methyl - 3 : 4 - di - (carbophenoxyamino)-furane. Reference is also made to products in which R3 represents methyl, isopropyl, phenylethyl or p-tolyl, and R a carboxylic acid, methyl, propyl, phenyl or benzyl ester or amide, mono- or di-methylamide, diethylamide, piperidide, anilide or N-methylanilide group. Specification 615,901 is referred to.  3 : 4 - Dicarboxy - 2 - furane - n - pentanol is prepared by esterifying 2-furane-n-valeric acid with alcoholic hydrochloric acid, reducing the ester with sodium and alcohol to 2-furane-n-pentanol, heating this with acetylene dicarboxylic acid ethyl ester, hydrogenating the product in ethyl acetate in the presence of a palladium catalyst, decomposing the product into ethylene and 3 : 4-dicarbethoxy-2-furane-n-pentanol, and saponifying the latter.
Patent GB-1162931-A (GB)
Title: Photo-electric units for flame-control arrangements
IPC: F23N5/08
Filed: 1968-01-02
Abstract: 1,162,931. Photo-electric sensor. DANFOSS A. S. Jan. 2, 1968 [Jan. 20, 1967], No. 276/68. Heading G1A. A photo-resistor 4 is mounted upon a web support 3 inside a plastics housing 1 and covered by a cap 2 part or all of which is transparent or translucent and which snap fits on to the housing at 7. The cap may be of opaque material and have an orifice which is covered by a transparent window or by a filter. Alternatively the cap may be wholly of plastics material which may be clear or have a filtering effect. The transmissivity of the orifice filter and the plastics cap may vary in the circumferential direction.
Patent GB-523381-A (GB)
Title: Improvements in or relating to the treatment of water
IPC: G01N21/82
Filed: 1939-01-04
Abstract: 523,381. Testing hardness of water; photoelectric apparatus. PERMUTIT CO., Ltd., and MILTON, R. Jan. 4, 1939, Nos. 292 and 10527. [Class 40 (iii)] The hardness of water or the amount of calcium and magnesium salts in liquids is determined by adding thereto Turkey red oil or a similar ricinoleate or derivative thereof, preferably in an alkaline solution and photoelectrically measuring the turbidity produced. Turkey red oil has the advantage over soap solution in that the products of the reaction have little tendency to form scum or sludge or deposits in the photo-electric apparatus interfering with the proper functioning of that apparatus. Still further to reduce that tendency, a colloid maybe added, such as gum arabic, egg albumen, or ghatti gum (Indian gum).
Patent GB-290558-A (GB)
IPC: H04R11/08
Filed: 1928-01-05
Abstract: 290,558. Electrical Research Products, Inc., (Assignees of Keller, A. C., and Norton, E. L.). May 14, 1927, [Convention date]. Magnetic instruments; phonographic recorders and reproducers.-A device for damping vibrations in acoustic apparatus comprises a pair of spaced relatively movable members mounted in a container filled with viscous material to such an extent as to maintain the opposing faces of the members covered, the material being moved laterally of the spaced members by the relative movement thereof. The invention is shown as applied to the armature of an electromagnetic - device for recording sound or for reproducing sound from a record. The armature 10 is held against a knife edge 14 by a spring 15 in the gap between the pole-pieces 12 of an electromagnet 10. Coils 17 surround the armature to which is attached a stylus holder 16 and stylus 19. The upper end of the stylus holder is connected by a rod 21 with a flexible diaphragm 24 clamped in a chamber 22 rigidly mounted with respect to the magnet 10, and filled with a viscous liquid 29, preferably a mixture of about 75 per cent polymerized castor-oil and 25 per cent nitro-benzol. In the centre of the chamber is mounted a post 23, the face of which is in close space relation to the diaphragm 24. In order to compensate for changes in the viscosity of the liquid prouced by changes in temperature, the post 23 is made of a material having a comparatively high linear expansion coefficient and the chamber 22 is constructed of a material having a comparatively low linear expansion coefficient. The length of the post is also made such that the changes in the length of the gap with temperature will be such as to compensate with the corresponding changes in the viscosity of the liquid. In the modified construction of damping unit, Fig. 5, a metallic plate 30 is mounted on the inner surface of the diaphragm. Specifications 290,264 and 221,283 are referred to.
Patent GB-174849-A (GB)
Title: An improved confection or sweetmeat
IPC: A23G3/00
Filed: 1921-01-05
Abstract: 174,849. Livens, W. M. Jan. 5, 1921. Drawings to Specification. Confectionery and sweetmeats. - A cream caramel or like sweetmeat is in the form of a plurality of layers, preferably three, the middle layer being constituted differently from the outer layers so as to have a different colour and flavour. The thickness of the middle layer may be equal to or less than the thickness of each of the outer layers. The sweetmeat is built up by hand in slab form and is then cut into pieces of the desired shape.
Patent GB-839577-A (GB)
Title: Press for the manufacture of mass produced articles from hardenable plastics
IPC: B29C43/00
Filed: 1957-01-03
Abstract: 839,577. Moulding bottle screw caps. BUSS, W. Jan. 3, 1957 [Jan. 3, 1956], No. 367/57. Class 87(2). Mass-produced articles, for example bottle screw caps, are compression-moulded from hardenable plastic materials, e.g. phenol resins, in a press in which the refilling of the moulds with plastic material cannot take place until the previous moulding operation has been completed, whereby the moulds are not overfilled with plastic material. The apparatus comprises a plurality of pairs of dies which are similar, the description of one applying to all. With the lower die 3 in its bottom position a feed slide member 8, 9 advances to feed a measured quantity of plastic material, e.g. a phenol resin, from a container 12 through a shoot 13 to the lower die 3. A projection on the member 8 pushes forward a shutter 10 which prevents the accidental admission to the mould of more than the measured charge, e.g. following incomplete travel of the lower die which, however, retracts the shutter, if it reaches the top of its stroke, by meeting a bell crank 11. Each die is heated by an element 5. When the bottle cap has been compression moulded the lower die descends and a spring- actuated flap 15 moves through an opening in the moulding cylinder 2, ready to receive the cap as it is unscrewed from the top die by a rotating rubber roller 14. On the upward movement of the piston 3 the flap 15 ejects the article. The dies and associated mechanism are simultaneously actuated from a crossmember 18 which is vertically reciprocated by cam discs 16, acting on rollers 19 on the upstroke and on rollers 20 on the down stroke. The cam disc drives are geared together through gears 17 and driven from a gear wheel 21. Screw adjustment 23, 25 is provided between the cross-member 18 and each die 3, with cushioning springs 24.
Patent GB-793328-A (GB)
Title: Method of incorporating oil in butyl rubber
IPC: C08F36/04
Filed: 1956-01-05
Abstract: <PICT:0793328/IV (a)/1> In a process for preparing a polymer of an isoolefin or a copolymer thereof with a diolefin by contacting the iso-olefin or iso-olefin-diolefin mixture together with a diluent with a solution of a Friedel-Crafts metal halide catalyst in a low-boiling non-complex forming solvent at the reaction temperature, at a temperature between - 40 DEG  and - 160 DEG  C. to form a slurry of finely-divided polymer in the solvent, and passing the slurry to a flushing zone containing liquid at a temperature sufficient to volatilize off the solvent and unreacted materials, to destroy the catalyst and to form a slurry of the polymer in the liquid, a pre-cooled solution of an extender oil in a low-boiling diluent is added to the cold reaction mixture leaving the polymerization zone before passing to the flashing zone. Referring to the drawing, polymer slurry from reactor 1 overflows from outlet 64 into pipe 65 and over overflow weir 68 extending into flash-pipe 69 where it meets a spray of flashing liquid, preferably heated water coming from manifold 70 via slots 71, and is carried on to flash tank 13.  The extender oil is introduced through inlet pipe 75 and mixed with the slurry by agitator 76. Flushing gas from inlet 73 sweeps the volatilized materials out of the overflow and flashing pipes.  The specified isoolefin is isobutylene while butadiene, isoprene, 2,3-dimethyl butadiene, piperylene, dimethylallene, 2-methyl- or 2,6-dimethyl-hexadiene, hexatriene, myrcene, 1,6-heptatriene and 2,4,6trimethyl-hexatriene are specified diolefins.  Specified diluents for both the polymerization zone and extender oil are methyl or ethyl chloride, n-butane, isobutane, carbon disulphide and ethylidene difluoride, while aluminium chloride is the specified catalyst.  A water-insoluble magnesium, zinc, aluminium or calcium soap of a C16-C18 fatty acid, e.g. zinc stearate, may be present in the blasting zone or added to the extender oil solution. Specifications 523,248 and 565,974  [both in Group IV], are referred to.
Patent GB-863805-A (GB)
Title: Removing shale particles from coal or from coal-washing effluent by froth flotation
IPC: B03D1/02
Filed: 1956-01-05
Abstract: Shale is removed from effluent water, by froth flotation by a process in which the shale is rendered hydrophobic, so that the particles are lifted by the air bubbles to form a froth.  The reagents used are; as depressants:-potassium permanganate, potassium dibromate, persulphates and hypochlorites.  As collectors:- octyl amine, cetyl trimethyl ammonium chloride, fatty amine acetates.  As collector and frother:- cetyl trimethyl ammonium bromide, cetyl dimethyl benzyl ammonium chloride, lauryl pyridinium chloride.  A frothing agent e.g. methyl isobutyl carbinol is used with the collectors.  The shale froth may be admixed with coal refuse or broken down flocculated and thickened and/or filtered.ALSO:Coal is cleaned, and shale is removed from effluent water, both by froth flotation by a process in which the coal is rendered hydrophilic and the shale hydrophobic, so that the latter particles are lifted by the air bubbles to form a froth. The pulp may be rewashed by rendering the middlings remaining in the pulp hydrophobic and floating them off.  The coal is recovered by filtration.  The reagents used are, as depressants:- potassium permanganate, potassium dibromate, persulphates and hypochlorites. As collectors:-octyl amine, cetyl trimethyl ammonium chloride and fatty amine acetates.  As collector and frother:- cetyl trimethyl ammonium bromide, cetyl dimethyl benzyl ammonium chloride, lauryl pyridinium chloride.  A frothing agent e.g. methyl isobutyl carbinol is used with the collectors. The shale froth may be admixed with coal refuse or broken down, flocculated and thickened and/or filtered.
Patent GB-935210-A (GB)
Title: Vibrating capacitor device
Inventor: MONSER HANS-JOACHIM
Filed: 1960-01-06
Abstract: 935,210. Capacitors. VAKUTRONIK VEB. Jan. 6, 1960, No. 456/60. Class 37. A vibratory capacitor and a fixed coupling capacitor used, for example, as a D.C. chopper in an electrometer, are both housed in a single case, the vibrating electrode being sealed from the atmosphere and the electromagnetic drive therefor being housed in a separate sub-housing. The electrode 3 of the coupling capacitor 2, 3 and the fixed electrode 5 of the vibrating capacitor 5, 7 are secured in an insulating ring 4 held against a shoulder 8 of the brass case 1 by a spacer ring 9 and a ring 10 screwed into the case. A further insulator 11 housing the electrode 2, which is adjustable by means of a screwdriver, is mounted on guide pins 12 and secured by a cap 16 and cap-nut 17. The drive coil 24 and laminated magnetic circuit elements 19, 20, 21, 22 are secured within a brass sub-housing 6 by a threaded spider ring 18 between which and a further ring 26 is clamped a membrane 25 carrying the vibrating electrode 7 and a guide pin 27. The vibrating core 23 is screwed on the guide pin 27 and locked to a second membrane 28 held against a face of member 6 by a clamping ring 29 and cover 29a. The subhousing 6 is screwed into case 1 and locked by a threaded ring 30 to which a base 34 is bolted. A polarizing pot permanent magnet may alternatively be used to provide the basic magnetic flux of the driving system.
Patent GB-1477749-A (GB)
Title: Working a roll die working of a metallic material
IPC: C21D8/00
Filed: 1975-01-06
Abstract: 1477749 Rolling; altering molecular structure MITSUBISHI JUGOKYO K K 6 Jan 1975 [18 Jan 1974] 500/75 Headings B3M and B3V A ferrous or non-ferrous workpiece 1 is worked by at least two roll dies 2 while being subject to a temperature cycle which induces a solidstate phase transformation in the workpiece, super-plastic deformation thereby taking place. The workpiece is heated by gas or by passing an electric current through the dies and workpiece, and pressurized cooling air may be blown on the workpiece. The cycle of heating and cooling is from 4 to 5 times a minute. The temperature range during a cycle may range from 100C below to 100C above either the A 1  or A 2  transformation point.
Patent GB-630556-A (GB)
Title: Improvements in or relating to variable-speed mechanism
IPC: F16H9/16
Filed: 1946-10-09
Abstract: 630,556. Variable-speed expanding-pulley gearing. CROWTHER, D. Oct. 9, 1946, No..507. [Class 80 (ii)] In floating countershaft expanding-pulley gearing, simultaneous-axial adjustment of the driving and driven pulley flanges is effected by securing the adjustable flange of one such pulley to a sleeve slidably keyed within the hub of the co-acting flange, which surrounds the end of a shaft carrying the other of such pulleys, the adjacent flange of which is coupled to the sleeve so as to be axially located but rotatable relative thereto. As shown, countershaft pulleys 9, 10, Fig. 2, have their outer flanges pinned to, and their integrally formed inner flanges slidably splined on, an axially floating countershaft 7. The pulleys 9, 10 are connected by Veebelts to driving and driven pulleys 8, 11 respectively on aligned hollow input and output shafts 5, 15, to which the outer flanges of these latter pulleys are secured, their inner flanges being slidably splined to the shafts through sleeves 21, 19 and being freely relatively rotatable but connected together for axial movement by a ball bearing 20. The inner end of the shaft 5 is slidably journalled in the sleeve 19. Speed ratio control is provided by a rod 25, connected to the sleeve 21 by a pin 22 passing through longitudinal slots in the shaft 5, and slidable in the shaft under the action of a screwed handwheel 37, Fig. 3, working in a casing member 38. A driving pulley 34 is provided on the outer end of the shaft 5. In Fig. 1 (not shown) each pulley is duplicated, corresponding slidable flanges being connected by axial rods passing through the intervening flanges except for the slidable input pulley flanges which are independently secured to the control rod 25. Alternative control means allowing an electric motor or other prime mover to be directly connected to a solid driving shaft 5 comprise a shaft 40, Fig. 5, operated by a hand wheel 45 and having screwed engagement with an arm 43 connected to the inner input pulley flange by a thrust bearing 44. With duplicated pulleys, two arms 43 or axial flange-connecting rods may be employed if a solid driving shaft is desired.
Patent GB-669172-A (GB)
Title: Improvements in or relating to dry shavers
IPC: B26B19/02
Filed: 1950-01-09
Abstract: 669,172. Dry shavers. BRAUN, W. M. Jan. 9, 1950. [Jan. 25, 1949] No. 549/50. Class 131. [Also in Group XXXV] A dry shaver comprises a reciprocating cutter and a thin flexible shear plate stretched over the cutter and secured to the sides of the shaver casing below the base of the cutter. As shown, the cutter consists of a rectangular base plate 1 of metal or plastic material having upstanding cheeks 2 and a series of cutting blades 3 and is reciprocated on the end face 5 of the casing 4 by the engagement of a necked head 20 of a lever 19 with spring wires 17 in a recess 16 of the base plate. The lever 19 carries an armature 21 lying in the field of an electro-magnet 22, the oscillating movement of the lever round the centre 18 being limited by springs 23. Ball bearings 6 are interposed between the bearing faces of the base plate and the casing and the shear plate is removably secured to the casing by co-operating bayonet slots and buttons at one side the other side being secured by a clamping plate held in position by a binder screw.