baber/WOPTO huggingface dataset:
Patent GB-638984-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F29/02
Filed: 1946-10-22
Abstract: 638,984. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 22, 1946, No. 31378. Convention date, Oct. 22, 1945. [Class 38 (ii)] A transformer for use in a potential derivation device comprising a capacitance potentiometer 2, 3 has means whereby the reactance of the transformer may be adjusted at constant voltage ratio and the voltage ratio adjusted at constant reactance. The serially connected secondary windings 6, 7 are respectively closely and loosely coupled to the primary winding 5, the loose coupling being effected by magnetic shunts, and, in order that the transformer reactance may be tuned to that of the potentiometer, thereby reducing the regulation of the device to a minimum, coarse and fine tapchanging switches 9, 10 having rotatory movements are provided. To adjust the voltage at the load 8, coarse and fine tap-changing switches 11, 12 having translatory movements are provided. In a modification, the seriallyconnected windings 6, 7 together with the tapchanging switches 9, 10 are on the primary side of the transformer. Three arrangements of the elements of the transformer are described in the Specification.
Patent GB-1420684-A (GB)
Title: Windwo regulator mechanism for a vehicle
IPC: E05F11/44
Filed: 1973-07-03
Abstract: 1420684 Operating device for curved vehicle windows NISSAN MOTOR CO LTD 3 July 1973 [6 July 1972 (2)] 31553/73 Heading E2M In an operating device for curved vehicle windows of the type shown in Fig. 1 in which a main regulator arm 34 is pivoted to a base plate 32 at 36 and is driven by means mounted on the plate e.g. sector gear 28 and crank handle gear 30, the interaction between arm 34 and plate 32 (shown in Figs. 6, 7) is such as to cause that end of the arm which engages the window to follow a path substantially parallel to the curvature of the window. A curved guide ridge 32a on the plate 32 engages a sliding surface 34'a on an extension 34' of the regulator arm. In the embodiment shown a further ridge 32b and sliding surface 34b are provided and both are arranged so that the points of contact between ridges and surfaces vary in dependence on the angular position of the arm 34. A spring 35 holds the arm 34 above the ridge 32a so that as the point of contact between 32a and 34'a moves toward or away from the pivot 36 the other end of the arm 34 will be moved up and down; suitable design of ridges and surfaces enabling the curve of the window to be followed. A spring 56 can be disposed between arm 34 and plate 32-and ridge 32b can be dispensed within this case (Fig. 7). In another embodiment (Figs. 9-12, not shown) both ridges 32a, b curve around the pivot 36 and vary in height between their ends to move the arm up and down. For Figures see next column
Patent GB-347141-A (GB)
Title: Process for the manufacture of halogenated aminoaryl-thiazole compounds
IPC: C07D277/82
Filed: 1930-01-22
Abstract: Nuclear halogenated 2-aminoarylthiazoles are manufactured by the action of a quantity not substantially exceeding the theoretical of a halogen (chlorine or bromine), or a substance yielding halogen, on a 2-aminoarylthiazole compound, which may advantageously be produced in situ by the action of chlorine or a chlorinating agent on the corresponding arylthiourea compound. The halogen atom usually enters the P-position to the ring nitrogen atom.  The products may be converted by the action of caustic alkali solution to the corresponding halogenated #s-aminoarylmercaptans.  In examples: (1) 2-aminobenzothiazole is treated with sodium chlorate and hydrochloric acid to produce 2-amino-6-chlorobenzothiazole, and (2) with bromine to give the 6-bromoderivative; (3) 2-amino-4-methylbenzothiazole is acted upon with two molecular proportions of chlorine in the presence of a trace of iodine, yielding 5 : 6 - dichloro - 4 - methyl - 2 - aminobenzothiazole; (4) 2-amino-4-methylbenzothiazole hydrochloride, which may be produced in situ by the action of sulphuryl chloride on o-tolylthiourea, is treated with chlorine to produce the 6-chloro-derivative, which on treatment with caustic alkali solution yields 1-methyl-5-chloro-2-aminophenyl-3-mercaptan; (5) by replacing chlorine in Example (4) by bromine, the corresponding bromo-compounds are obtained; (6) 2-amino-6-ethoxybenzothiazole hydrochloride is treated with bromine to give a bromination product in which the bromine atom probably occupies the 5-position; (7) o-tolylthiourea is treated with sulphuryl chloride and then with bromine, producing 6-bromo-4-methyl-2-aminobenzothiazole; (8) o-tolylthiourea is acted upon with two molecular proportions of chlorine or (9) of sulphur dichloride, S Cl2, yielding in each case 2-amino - 4 - methyl - 6 - chlorobenzothiazole; (10) 1-naphthylthiourea by the action of sulphuryl chloride gives 4 : 5-benzo-6-chloro-2-aminobenzothiazole; (11) 2-phenylaminobenzothiazole is treated with bromine to produce a dibromo-2-phenylaminobenzothiazole.  Specifications 295,295, [Class 2 (iii), Dyes &c.] and 345,735, are referred to.
Patent GB-911853-A (GB)
Title: Improvements in or relating to clutch sprag and retainer assemblies
IPC: F16D41/07
Filed: 1960-09-13
Abstract: 911,853. Ratchet clutches. FORMSPRAG CO. Sept. 13, 1960 [Oct. 12, 1959], No. 31577/60. Class 80 (2). A ratchet clutch comprises inner and outer races between which are sprags 14 having rounded ends 16, 17 and rounded side portions 22, 23 bearing against cross-bars 30 of a spragcage 28, garter springs 15 in slots 19 at the ends of the sprags biasing the sprags to engage the races. The bars 30 are offset radially inwards of the clutch, and as shown, the sprag-cage is stamped from steel &c. In a modification, Figs. 6, 7 (not shown), the cage is made from two rings of machined sintered iron or bronze connected to each end of a steel stamping in the form of cross-bars integral with rings at their ends, these rings fitting on to shoulders on the sintered rings. The centres of gravity C of the sprags 14 are so positioned that centrifugal force assists the springs 15 to engage the sprags with the clutch races. Reference has been directed by the Comptroller to Specification 852,314.
Patent GB-265345-A (GB)
Title: Indicator for use with internal combustion engines to test the sparking plugs
IPC: F02P17/12
Filed: 1925-12-15
Abstract: 265,345. Smith, H. W. Dec. 15, 1925. Testing and indicating; external spark-gaps.- A sparking-plug, volt-meter or ammeter is mounted on a base A, and may be put into shunt with any one of a set of sparking-plugs by means of a selector comprising a rotatable member E and contacts C connected to the plugs. A strap or the like I serves to connect the member E to the indicating device.
Patent GB-1137553-A (GB)
Title: Improvements in supporting shelving, racks and the like
IPC: F16B12/12
Filed: 1965-07-23
Abstract: 1,137,553. Shelving. A. W. HOOD. 15 July, 1966 [23 July, 1965], No. 31624/65. Heading A4B. A shelf support includes a column U provided with a longitudinal channel (10) of part circular cross-section and a bracket B having a crook shaped head 16 carried by a plate portion 15, the channel having an entry slot 10a through which the head 16 is passed to be subsequently rotated and thereby wedged in the channel 10. The plate portion 15 fits into the slotted end of a shelf bearer (S). The bearer (S) may be supported at one or both ends by a bracket B. The columns U may be secured to a wall or may form part of a free standing assembly provided with feet (24). The front edge of a shelf (18) may carry a slide on price ticket carrier (19). A stop 16a on the head 16 limits rotation of the bracket B in the channel 10. Laterally disposed longitudinal slots 12, 13 may be provided in the column U.
Patent GB-822402-A (GB)
Title: Improvements in and relating to devices in trolleys for decking motor vehicles in multiple storey garages
IPC: E04H6/24
Filed: 1957-10-10
Abstract: 822,402. Trucks for moving motor vehicles. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Oct. 10, 1957 [Oct. 10, 1956], No. 31724/57. Addition to 822,401. Drawings to Specification. Class 108(1). A truck as described in the parent Specification is provided with a relay incorporated in the motor circuit of the thrust member operating means so that after the thrust members have straightened the front wheels of the car they are withdrawn a distance of 1-2 cms from the wheels.
Patent GB-158778-A (GB)
Title: Improvements in exhaust pipes for internal combustion engines
IPC: F02B77/02
Filed: 1919-12-18
Abstract: 158,778. Cave, T. R. Cave-Browne-. Dec. 18, 1919. Cylinders, pipes for.-Exhaust pipes are lined with refractory enamel capable of resisting a. temperature of 700‹ F.
Patent GB-488004-A (GB)
Title: Improvements in and relating to the manufacture of ceramic bonded abrasive materials
IPC: B24D3/14
Filed: 1937-11-18
Abstract: Abrasive articles are made by forming a mix comprising grains of abrasive oxide, e.g. alumina, and a ceramic bond containing a sufficient amount of a reducing agent, e.g. aluminium, silicon or boron, to react with oxidizing gas present to form a non-gaseous oxidation product and thereby prevent the formation of a porous bond. The bonds may be similar to those described in the parent Specification.
Patent GB-244787-A (GB)
Title: Improvements in safety razors
IPC: B26B21/52
Filed: 1925-12-16
Abstract: 244,787. Wiese, F. Dec. 16, 1925. Razors. - The blade r of a safety rezor is clamped between a broad portion d of the cover plate k and a concave guard s, the cover plate being of a cross-section which provides a line-contact clamping e near the cutting edge of the blade. This method of clamping damps the natural vibrations of the blade, and the damping may be increased by providing the cover k with a filling or coating f of inelastic material such as lead, zinc, &c. The contact at e may be beyond the. angular part s of the guard whereby the blade is bent near the cutting edge. A form of plate k of bent metal is described. The bearing surface, d may be provided by means of filling pieces separate from the plate k, and the adaptation of the invention to symmetrical blades is described. The guard has projections a against which the ends of the cutting edges, or corners, of the blade are clamped, to prevent the corners of the blade from cutting and damp vibrations of the cutting edge. The plate k carries guide pins c and a handlereceiving screw b which pass through holes in the blade and guard. The screw b may be pivotally attached, in which case the hole t in the guard is obliquely arranged so that the razor is used with a drawing cut and either edge of the blade may be used. The central hole t<1> of the blade, Fig. 9 is correspondingly elongated and oblique. The hole y fits one guide pin c, whilst the hole z through which the other pin passes is elongated. The guard may have a slot with a protecting bar l, Fig. 6, or may have teeth.
Patent GB-633544-A (GB)
Title: Lathe profiling attachment
IPC: B23Q35/18
Filed: 1945-11-26
Abstract: 633,544. Copy-turning. SOC. ANON. DES ACIERIES CI-DEVANT G. FISCHER. Nov. 26, 1945, No. 31913. Convention date, May 9. [Class.83 (iii)] A lathe for copying from a template 4 with steps perpendicular to the axis of rotation of the work 3 has a transverse slide 7 operating perpendicular to the work axis along a longitudinallymovable slide 2, and both the feeler 28 and a separate slide 8 carrying the tool 11 are coupled to the transverse slide so that, when the feeler contacts a perpendicular step on the template, the feeler and tool describe parallel movements at an acute angle to the work axis and cancel out the uniform longitudinal feed. The tool slide 8 is mounted on the transverse slide 11 and is linked to an oblique slot 10 on the slide 2. The tracer head comprises a pair of pistons 13, 14 coupled together by teeth 15, 16 on their respective rods and connected to the slide 7 by a screwed spindle 12 so that the initial position of the tool carrier can be set by a handle 6. The spring-loaded feeler 28 on the piston 14 operates a valve 27 within the piston and is inclined at the same angle α as the slot 10. Fluid pressure from a pump 18 is supplied through a pressurereducing valve 23 to the pistons so that they act in opposite directions to take up play in the teeth 15, 16 and, as the piston 14 has the larger effective area, so that the feeler is moved towards the template 4. On portions of the template parallel to the work axis, the feeler opens the valve 27 sufficiently to allow a fluid leak from the space 25 into a conduit 29 to balance the forces on the two pistons. When, however, the feeler meets a perpendicular step 30, valve 27 is fully opened and the pressure on piston 13 moves the slide 7 away from the work axis. The slot 10 then causes longitudinal movement of the tool slide 8 so that the constant longitudinal feed movement of the slide 2 is cancelled and the resultant movement of the tool is perpendicular to the work-piece. In a modification, the pistons have racks coupled together by pinions, and springs are substituted for the hydraulic pressure. In a further modification, Fig. 4, the feeler is mounted on a longitudinal slide 64 carried on a slide 70 joined to the transverse slide 57 by a screwed spindle 68. A spring 66 maintains the feeler in contact with the template and the slide 64 is linked to an oblique slot 65 on the main longitudinal slide 56. When the longitudinal feed of the feeler derived from the main slide 56 is arrested by a step on the template, the slot 65 causes transverse movement of the slides 70 and 57, which is applied to the tool slide 61. by a bell-crank lever 62 pivoted on the slide 57 and engaging pins 72, 73 on the slide 56 and tool slide respectively. The arms of the bell-crank have a ratio of tan α so that the tool is moved perpendicularly to the work axis. Specification 630,365 is referred to.
Patent GB-1340610-A (GB)
Title: Process for production of 4,4-dibromobenzil
IPC: C07C49/163
Filed: 1971-07-07
Abstract: 1340610 4,4<SP>1</SP>-Dibromobenzil; imidazolones CIBA-GEIGY AG and AGRIPAT SA 7 July 1971 [8 July 1970] 31975/71 Heading C2C 4,4<SP>1</SP>-Dibromobenzil is prepared by (a) reacting benzoin with urea in the presence of an inert water-insoluble organic solvent at 100-200 C.; (b) brominating the resulting 4,5-diphenylimidazol-2-one to obtain 4,5<SP>1</SP>-bis(4<SP>1</SP>-bromophenyl)-imdidazol-2-one and (c) oxidizing this bromination product. Step (a) may be carried out in the presence of an acid catalyst, e.g. benzoic acid, oxalic acid or p-toluene sulphonic acid. Suitable water-insoluble organic solvents are, for example, o-dichlorobenzene, nitrobenzene and 1,1,2,2-tetrachloroethane. The bromination step may be carried out with the usual brominating agents for aromatic substitution, e.g. bromine, N-bromosuccinimide, sodium bromide in the presence of concentrated sulphuric acid, potassium bromate or sodium bromide in the presence of acetic acid or potassium bromate in the presence of hydrobromic acid. Suitable oxidizing agents for step (c) are, for example, nitric acid, chorine or aqueous or acidic solutions of bromine.
Patent GB-794411-A (GB)
Title: Improvements in or relating to wire ropes
Inventor: CAMPBELL ROBERT EDWARD
IPC: D07B7/00
Filed: 1953-11-18
Abstract: 794,411. Drawing; altering physical structure. BRITISH ROPES, Ltd. Aug. 13, 1954 [Nov. 18, 1953], No. 31992/53. Class 83 (4). Steel wire ropes or strands thereof are subjected to plastic flow with uniform pressure all round as by drawing, rolling or swaging and to a predetermined elongation by applying back tension in order to obtain an increase in fatigue resistance. Stranded steel wires of circular section are drawn through dies, and reduced in cross-sectional area by 20-40 per cent, the individual wires changing from round to polygonal section to form strands, as described in Specification 794,412, [Group XXV]. A machine for drawing strands 1, Figs. 3, 3a, through a die 6 comprises a cradle 2 from which the wire is fed through a guide 3 and wrapped round a capstan wheel 4 and passes through a cooling bath 5 containing dry ice. The wire is drawn by a capstan 7 and after passing through a guide 8 is reeled on a take-up drum 9 by a traversing gear 9a. The drum 4 is braked by a friction brake 15 to apply backtension to the strand of from 12-35 per cent of the breaking load and initiate plastic flow as the strand runs into the die 6. The cradle 2 can be rotated to twist the wire by a power drive 16 and the reel braked by a friction brake 18. The die 6 is mounted on a swivelled die-holder 12 which is moved through a quadrant and worm 13, by a handle 12 to impart " kill " to the strand. Lubricant such as a highly-refined mineral oil is supplied from a tank 11 through a centrifugal pump 10. The die may be rotated at speeds of 4000-5000 r.p.m. to reduce the power required to draw the strands. Strands prepared by the method and of round, triangular, oval, &c. form may be formed into a rope over a core of plastic or other material which may contain a conductor and the completed rope may be drawn down through another die to bed the strands into the core. In other forms of drawing machines the drawing blocks preceding and following the die may be run at different speeds by variable speed motors in order to obtain the required back tension. In modifications the drawing die may be replaced by hardened steel rollers mounted in a chuck rotating about the axis of the work to reduce its section or it may be replaced by segmental swaging dies. The drawing dies may also be arranged in combination with a stranding machine, the traction being applied by the haul-off capstan and the back-tension applied by the individual wire bobbins. Alternatively where the die follows the haul-off capstan the traction is applied. by a second haul-off capstan, the back tension being controlled by the speed of the first capstan.
Patent GB-960534-A (GB)
Title: Organosilicon compounds
IPC: C08G77/00
Filed: 1962-08-21
Abstract: Silanes of the general formulae <FORM:0960534/C3/1> and <FORM:0960534/C3/2> in which D is a <FORM:0960534/C3/3> , phenyl or CH3CH=CH-radical, X is a hydrocarbon radical of 1 to 6 C atoms, H or a radical of the formula <FORM:0960534/C3/4> , <FORM:0960534/C3/5> or <FORM:0960534/C3/6> , R1 is an aliphatic radical composed of C, H and O, the latter being in the form of ether or polyether linkages or -OH radicals, in R1 the ratio of C:O being not greater than 3:1, R is an alkylene radical of 1 to 4 C atoms, R111 is a monovalent hydro carbon or halohydrocarbon radical, Y is a monovalent hydrolysable atom or radical, a is 0 or 1 and b is 0, 1 or 2, are best prepared by reacting alkenyl esters of itaconic, maleic, fumaric, aconitic, citraconic, cinnamic and sorbic acids, and <FORM:0960534/C3/7> and <FORM:0960534/C3/8> with silanes of the formula <FORM:0960534/C3/9> in the presence of a Pt catalyst.  Silanes in which R is a methylene radical are best prepared by reacting a tertiary amine salt of the corresponding acids or monoesters with <FORM:0960534/C3/100> , wherein Y is preferably an alkoxy radical, in the presence of a mutual solvent at 100 to 175 DEG C.; alternatively they may be made by reacting the same silane with an alkali metal salt, e.g. <FORM:0960534/C3/111> (where M=alkali metal and Q is <FORM:0960534/C3/122> , <FORM:0960534/C3/133> or <FORM:0960534/C3/144> at 50 to 150 DEG C.  In these reactions the molar proportions determine whether the final silane contains 1 or 2 Si atoms.  The silanes are hydrolysed at a pH of 7 to give stable solutions of the corresponding silanols, buffers such as ammonia or acetic acid, being added where necessary.  The silanes per se or together with conventional silanes may be hydrolysed and condensed to give homo- or copolymers. Alternatively the polymers can be made by the above SiH addition reaction using a Pt catalyst, but starting with siloxanes containing Si-bonded hydrogen and the customary hydrocarbon (saturated or unsaturated) or halohydrocarbon radicals. In typical examples, (1) a mixture of trimethoxysilane and allylmethylmaleate was slowly added to a heated mixture of toluene and a solution of chloroplatinic acid and the resulting mixture was then heated for 1 hr at 112 DEG C. to yield, after removal of solvent and distillation of the residue, a compound of the formula CH3OOC.CH=CHCOO(CH2)3Si(OCH3)3; (7) allyl-cinnamate was similarly reacted with the same silane to yield C6H5.CH=CH.COO(CH2)3Si(OCH3)3 which was hydrolysed to yield the corresponding siloxane; (19) CH3OOC.CH=CH.COOH was reacted with <FORM:0960534/C3/155> in the presence of tributylamine to yield <F\16>. In (14) the compound HOOCCH=CHCOO(CH2CH2O)100(CH2)2 Si(CH3)-(OOCCH3)2 is prepared. Uses: the silanes are useful for treating glass, other siliceous materials and metals; the polymers are useful for copolymerization with unsaturated organic monomers or polyesters, as coating compositions with or without organic resins, and as laminating resins.
Patent GB-632800-A (GB)
Title: Insulator for aerial lines
IPC: H01B17/14
Filed: 1946-10-29
Abstract: 632,800. Insulators. SORENSEN, N. T. Oct. 29, 1946, No. 32124. Convention date, Nov. 5, 1945. [Class 36] An insulator for supporting electrified fence wires and the like comprises a body 1 with a groove 4, 5 in each end and undercuttings 8, 9, 8a, 9a, respectively in said grooves 4, 5. The wire is placed in the upper groove 4, and is engaged in the undercutting 8, 9 by rotation of the insulator. The insulator is then turned further so that the groove 5 can engage with a nail or the like in the supporting post. When released the tension of the wire turns the insulator back so that the nail is engaged in the undercuttings 8a, 9a, thus locking the wire and the insulator in position. The insulator may also be used to separate two wires which cross one another by inserting one wire in each groove, the insulator being held in position by the tension of the wires.
Patent GB-1517540-A (GB)
Title: Preparation for the treatment of infectious diseases method for the manufacture thereof and its use
IPC: A61K35/76
Filed: 1975-08-01
Abstract: 1517540 Interferon-inducing virus preparation H STICKL 1 Aug 1975 [1 Aug 1974] 32217/75 Heading A5B Fowl pox virus attenuated by 420-800 serial passages is no longer immunogenic to fowls but is capable of inducing interferon in animals including man.
Patent GB-637835-A (GB)
Title: Improvements in and relating to domestic water supply systems
IPC: E03B7/04
Filed: 1947-12-06
Abstract: 637,835. Water supply. GILDER, F. N. Dec. 6, 1947, No. 32220. [Class 68 (i)] [Also in Group XXIX] In a system for supplying water to the various floors of a building, there is a common supply pipe with a branch at each floor leading to a tap, and means is provided in conjunction with each branch pipe except the one most remote from the source of supply to prevent an excessive amount of water being taken at any particular outlet when a supply is also being taken at other floors. As applied to a system wherein the supply is derived from a ground service main, the junction of each branch pipe 3, Fig. 3, with the common supply pipe 2 is formed with a sloping floor and provided with a ball 7 which normally rests against an abutment 8. If the flow to the branch becomes excessive, the ball is forced up the sloping floor until it contacts a further abutment 11, in which position the flow is considerably restricted. The abutment 11 comprises two projections from a washer 10. In a modification for use where the common supply pipe 13, 13a, Fig. 6, leads from a storage tank at or above the highest floor, the junction between the supply pipe and the branch pipe 17 is so formed that the dividing point 18 is displaced towards the branch pipe. Normally, there is a static column of water in pipe 13, 13a, and a full supply may be drawn through the branch pipe. If, however, a supply is being taken at a lower floor, there will be a flow along the pipe 13, 13a, and the amount of the flow that can be drawn off along the branch pipe 17 will be restricted. Specification 650,434, [Group XXIX], is referred to.