baber/WOPTO huggingface dataset:
Patent GB-1185927-A (GB)
Title: Method and Apparatus for Straightening Elongated Work Pieces
Inventor: GALDABINI RENZO
IPC: B21D1/00
Filed: 1967-08-04
Abstract: 1,185,927. Straightening. R. GALDABINI. 4 Aug., 1967 [6 Aug., 1966], No. 35911/67. Heading B3E. A process for straightening a workpiece comprises applying a first straightening stroke imparting to the workpiece a deformation beyond the desired final shape, this deformation being at least approximately equal to the estimated maximum elastic deformation S, unloading the workpiece and determining the remaining error from the desired shape, applying at least one further stroke to impart a deformation beyond the final shape equal to the sum of the estimated maximum elastic deformation and the deflection error remaining after the preceeding stroke. The term "straightening" includes bending operations even when the final shape is not in fact, straight. A bar 5 having an initial deflection error E 0  is mounted on supports 3, 4 and a deflection S 1  is applied by a press 1. The deflection S 1  beyond the straight line origin O corresponds approximately with the estimated maximum elastic deformation S and preferably exceeds this value. The load is released and the deflection error E 1  is sensed by a pick-up 6. A second straightening stroke is applied to give a deflection S 2  = S + E 1  beyond the origin O i.e. S 1 S 2  = E 1 . The remaining error E 2  is sensed and a third stroke applied giving a deflection S 3  = S + E 1  + E 2  beyond O. If the remaining error E 3  is within the permitted tolerance Ef then no further stroke is needed. The values for Fp and Ef are fed to a programmer 9 to initiate the straightening operation. The pick-up 6 produces two signals, one representing the deflection applied by the press 1, which is transmitted to an amplifier 12 and the other, representing E 1 , E 2  &c. which is transmitted to the memory of a computer 8. After computing the sum of the residual errors a signal is transmitted to a summing device 10, which produces a control signal (S + E 1  + E 2  . . .). This signal is transmitted to the amplifier 12, the output of which is fed to a control unit 2 for the press 1. The straightening operation is terminated when the error transmitted through a differentiator 11 and the amplifier 12 to the programmer is smaller than the permitted tolerance Ef.
Patent GB-383099-A (GB)
Title: Improvements in permanent magnets for loud-speakers or the like
IPC: H04R9/02
Filed: 1931-12-30
Abstract: 383,099. Loud-speakers. COLE, A., c/o Glyn Mills & Co., Kirkland House, Whitehall, London. Dec. 30, 1931, No. 35929. [Class 40 (iv).] A permanent magnet for a moving-coil loudspeaker comprises a flat bar member B with inturned ends, which member is of elongated C- shape and is fixed to a "polecarrier." A of which the shape, in section, is similar to that of a truncated cone. In the centre of the part A there is a hole through which the central polepiece P, fixed to the bar B, protrudes, forming an annular air gap in which the coil C is located. The coil is attached to .the diaphragm T, which has a flexible peripheral suspension clamped by a ring M to a chassis F, so that the diaphragm lies in the space between the part A and the plane joining its extremities. The ends of the member A, which are connected to the chassis, are slightly splayed. The chassis has two arms Z which extend from opposite sides of the ring portion and are joined together, forming a recessed seating for the magnet B.
Patent GB-1120262-A (GB)
Title: Method for bonding synthetic resin sheets and metal sheets
IPC: B29C35/08
Filed: 1965-08-20
Abstract: 1,120,262. Laminates. SUMITOMO BAKELITE CO. Ltd. 20 Aug., 1965 [5 Sept., 1964], No. 35942/65. Heading B5N. A method of bonding a plastics sheet; the main component of which is an addition polymerization-type polymer containing in the molecule at least 20% in molar ratio of the repeating structural units having the general formula where X is hydrogen or a phenyl group to a metal sheet, comprises irradiating a surface of the plastics sheet in the presence of oxygen with ultra-violet rays of wavelength 2100-1600 Š and melt bonding the irradiated surface of the plastics sheet to the metal sheet at a temperature not lower than the melting point of said polymer at a pressure not exceeding 60 kg./cm.<SP>2</SP>, and then cooling the resultant laminate to room temperature. Specified polymers are homopolymers of ethylene, styrene, methyl styrene, dimethyl styrene, ethyl styrene, butyl styrene, methoxystyrene, chlorostyrene, dichlorostyrene, p-vinyl benzoic acid, butadiene, isoprene and chloroprene; copolymers of ethylene with propylene, butene-1, styrene, substituted styrenes, vinyl acetate, vinylidene chloride, methyl methacrylate, ethyl acrylate, dimethyl maleate, acrylonitrile, or vinyl butyl ether; copolymers of styrene with α-methyl styrene, methyl styrene, dimethyl styrene, chlorostyrene, bromostyrene, iodostyrene, methoxystyrene, nitrostyrene, dimethylamino styrene, acrylonitrile, methacrylonitrile, acrylic acid esters, methacrylic acid esters, maleic anhydride, esters of maleic and fumaric acids, vinyl acetate, vinyl ketone, alkyl vinyl ethers, butadiene or isobutylene; copolymers of butadiene with styrene, substituted styrenes, acrylonitrile, methacrylonitrile, methyl vinyl ketone, esters of acrylic or methacrylic acids, vinyl chloride, vinyl pyridine or isobutylene. Specified metals are copper, iron and alloys thereof with one or more of magnesium, manganese, nickel, cobalt, chromium, titanium, zinc, tin, lead, bismuth, cadmium, beryllium, thallium and indium. In Fig. 5, polyethylene sheet 3 from extruder 1 is irradiated on both surfaces by ultra-violet lamps 4, contacted on each surface with cleaned aluminium sheet 6, the assembly being passed through preheater 8 and then between seven pairs of hot pressing rolls 9 and cut into length by rotary cutter 12.
Patent GB-924412-A (GB)
Title: Improvements in devices for automatically controlling a flying body along a predetermined flight path
IPC: F41G7/24
Filed: 1959-10-23
Abstract: 924,412. Automatic steering control. BODENSEEWERK PERKIN-ELMER & CO. G.m.b.H. Oct. 23, 1959 [Oct. 25, 1958], No. 35973/59. Drawings to Specification. Class 38(4). In a system for automatically steering a flying body along a predetermined path, a control signal dependent on the magnitude of displacement from the path is combined with a further control signal derived from a heavily damped accelerometer responsive to acceleration in a direction at right angles to the direction of flight. The damping of the accelerometer is equivalent to integration so that the second control signal represents rate of displacement from the predetermined path and leads the displacement signal by 90 degrees.
Patent GB-1157936-A (GB)
Title: Process and device for producing Fibre-Reinforced Tubes
IPC: B29C41/04
Filed: 1966-08-11
Abstract: 1,157,936. Fibre-reinforced tubes. BASLER STUCKFABEREI A.G. 11 Aug., 1966 [31 Aug., 1965], No. 36029/66. Heading B5A. Fibre-reinforced tubes are produced by rotational casting by introducing hardenable material into the mould, rotating the mould 1 with the material in a fluid state, and delivering reinforcing fibres on to it from a point within the mould, spaced from the rotational axis, adjacent the walls and longitudinally movable along the mould, and varying the longitudinal position to match the direction and velocity of delivery of fibres with the circumferential velocity so that the direction and velocity of delivery are substantially uninfluenced by the rotation as the fibres engage the moulded tube. The material is preferably thermosetting.. The fibres are preferably delivered to the tube walls normal to the axis of rotation or at an angle to the normal. Distributer head 3 on arm 2 is movable longitudinally in the mould and contains means to deflect the fibres and means to cut a continuous fibre length into short fibre elements before such deflection.
Patent GB-737550-A (GB)
Title: Improvements in or relating to printed or the like electrical circuits
Inventor: LENO JOHN ALBERT
IPC: H01F17/00
Filed: 1953-12-30
Abstract: 737,550. Transformers and inductors; electric coils. STANDARD TELEPHONES & CABLES, Ltd. Dec. 30, 1953, No. 36134/53. Classes 35 and 38 (2). A method of producing an inductive winding comprises printing or otherwise depositing a conductive track 2 on one surface of a flat insulating carrier 1 and folding the carrier through 180 degrees on a line crossed by the track-such as the dotted lines 7, 8, 9. Thus portions of the track on each side of the linefor example the track portions 12 and 13 on each side of the line 9 are brought into a relative position about an axis at right angles to the surface of the carrier to form one turn of the winding. To produce a winding having a greater number of turns than shown in Figs. 1 and 3, the track is printed as shown in Fig. 4, the initial fold being along the line 17, subsequent folds being made along lines 18, 19, 20. To obtain even more turns, more than one loop as shown in Fig. 4 may be printed concentrically therewith. When folding the carrier the requisite insulation may be inserted between the turns. Two such windings may be interleaved to form a transformer. Alternatively the two windings may be printed one on each side of the carrier. Specification 639,591 is referred to.
Patent GB-852517-A (GB)
Title: New vat dyestuffs of the anthraquinone series and a process for their manufacture
IPC: C09B3/06
Filed: 1956-11-26
Abstract: Bz-1-bromo-Bz-2-methyl-, methyl- or -isopropylbenzanthrone and Bz-1-chloro-Bz-2-isopropyl- or -n-pentyl-benzanthrone are made by brominating or chlorinating the corresponding Bz-2-alkylbenzanthrones.  The bromination and chlorination may be conducted using bromine and sulphuryl chloride in chloroform or sulphuryl chloride in chlorbenzene respectively.  Bz-2-isopropyl- or -n-pentyl-benzanthrone is made by condensing anthrone with alphaisopropyl- or alpha-n-pentyl-acrolein respectively.  The condensation may be conducted in sulphuric acid in the presence of an oxidising agent.ALSO:The invention comprises vat dyestuffs of the formula:  <FORM:0852517/IV (c)/1> where R is alkyl or aryl and R1 is amino or acylamino, and a process for making them by reacting a Bz-1-halogen-benzanthrone substituted by an alkyl or aryl group in the Bz-2-position with a 1 : 5- diaminoanthrquinone or an N-monoacyl compound thereof to give a compound of the formula: p <FORM:0852517/IV (c)/2> which is then melted with an alkaline condensing agent, such as alcoholic caustic potash, and reacting the product, if desired, with an acylating agent such as benzoyl chloride, m- or pchloro-, o- or mfluoro-, or methoxybenzoyl chloride, o-, m- or ptoluyl chloride, a - or b - naphthoyl chloride or 1 - aminoanthraquinone - 2 - carboxylic acid chloride.  Hydrolysis of the acylamino group to form an amino group when using alcoholic potassium hydroxide in the melting step can be avoided if desired by melting the benzanthronylamino-5-acylaminoanthraquinone with an alkaline condensing agent substantially free from hydroxyl groups, such as sodium anilide or a sodium alcoholate, in aniline at about 140 DEG -170 DEG C.  In examples (1), Bz - 1 - bromo -Bz -2- ethylbenzanthrone is reacted with 1-amino -5- benzoylaminoanthraquinone in nitrobenzene with copper powder and sodium carbonate to give Bz -2- ethyl- Bz -1- benzanthronyl -1- amino -5- benzoylaminoanthraquinone which is melted with caustic potash and monethanolamine, the leuco compound thus obtained being oxidized with air to give a vat dyestuff which dyes cotton grey, and (2) this dyestuff is treated with m-fluorobenzoyl chloride in chlorobenzene to give a khaki cotton dye from a blue vat; in further examples, vat dyes dyeing vegetable fibres or artificial silk grey, khaki, brown and olive shades are made in a similar manner from 1- amino-5-benzoylamineanthraquinone and Bz -1- bromo- or Bz -1- chloro- Bz-2- hydrocarbonbenzanthrones, the hydrocarbon radicals being selected from methyl, ethyl, isopropyl, n-pentyl and phenyl, and the dyes being acylated with benzoyl, mfluoro-, mchloro- or mmethoxybenzoyl chlorides or 1- aminoanthraquinone -2- carboxylic acid chloride. Specification 339,369 is referred to.
Patent GB-1013803-A (GB)
Title: Pulse type regulating system for generators
IPC: H02P9/34
Filed: 1962-09-24
Abstract: 1,013,803. Automatic voltage control. AMERICAN MACHINE & FOUNDRY CO. Sept. 24, 1962 [Oct. 16, 1961], No. 36232/62. Heading G3R. A voltage regulating system for an A.C. generator 1 comprises a sensing circuit 5 for deriving a bipolar signal of changing polarity having an average value related to the output potential at output conductors 18, 19 and 20; a pulse generating circuit 6 for generating rectangular time-spaced pulses, a pulse occurring whenever the bipolar signal changes from a positive to a negative polarity, so that the pulses advance in time as the output potential decreases and retard in time as the output potential increases; and a control circuit 7 including controlled rectifiers 47, 48, 49 which are fired by said pulses so that the field winding 2 of the generator is provided with increased energy from the output conductors 18, 19, 20 as the pulses advance and decreased energy as the pulses retard, whereby the output voltage of the generator is maintained constant. The sensing circuit 5 produces the bipolar signal by mixing a constant potential derived from a battery 25 or a Zener diode with the unipolar signal derived over transforming 12, 13, and 14 and rectifiers 21, 22, 23 which rectify the negative half cycles of the output potential. The pulse generating circuit 6 includes a saturable core 28 having an output winding 31, a feedback winding 30 and a main winding 29 associated with transistors 33 and 36, the arrangement being such that a pulse is produced at the winding 31 whenever the bipolar signal b applied between base and emitter of transistor 36 goes from positive to negative; the D.C. supply for the circuit 6 is derived from a single phase winding 4 of the generator by way of rectifiers 38 to 41 and a filter 42 to 44. The time-displaced pulses c fire that controlled rectifier 47, 48 or 49 which is associated with the most positive instantaneous phase potential, thereby varying the energization of the field winding inversely to output potential variations. The wave shapes of the various potentials appearing when the regulating system operates are illustrated in Figs. 2a to 2e and 3a to 3e (not shown).
Patent GB-765378-A (GB)
Title: Yarn selector mechanism for knitting-machines
IPC: D04B15/54
Filed: 1954-12-16
Abstract: 765,378. Knitting-machines. FIDELITY MACHINE CO., Inc. Dec. 16, 1954 [Feb. 25, 1954], No. 36422/54. Class 74 (2). Not only can a cam 24 be traversed to bring it above any one of five consecutive yarn fingers 1 of a set of ten fingers (preparatory to depressing that finger to bring its yarn into the path of a pick-up arm 37) but also the set of fingers is traversible as a unit so as to bring any group of five within the range of traverse of the cam. For cam traverse, when a sleeve 49 is rotated on a shaft 21 by a pattern chain, acting through a rod 56, a cam slot 52 in a member 47 at the end of an arm 48 on the sleeve, acts on a follower 53 to shog a rod 14 and hence, through an arm 17 which the rod bears, to slide the cam 24 along the shaft 21 to a position above a predetermined yarn lever. At the same time, a lever 54 on the sleeve acts through a rod 58 to trip a mechanism which, through a rod 33, rotates clockwise a gear element 29 secured to the shaft 21 and hence, through a pin 28 and slot connection 27, rocks the cam 24 to depress the yarn fingers concerned to a position in which its yarn, to be introduced; is in the path of the arm 37,which will carry it to a knotter 42, together with the yarn to be replaced, which latter yarn also lies in that path by reason of its passing under a shield 41 on its way to the needles. The arm 37 is swung upwardly, for this purpose, by a bevel pinion which meshes with the gear element 29. When the shaft 21 is thus rocked, an arm 40 on it is depressed and a rock-shaft 43 is allowed to drop into a position in which it will actuate the knotter. When incoming and outgoing yarns have been knotted together and the outgoing yarn severed, the loose end of this last yarn is guided to a spring-actuated gripper 50, there to be held with the other inactive yarns. A non- inclined part 60 of the cam slot 52 allows sufficient movement of the sleeve 49 to trip the mechanism actuating the rod 33, when the yarn finger to be operated is the first of the group, and the cam is already positioned over it. At the end of the above cycle, all parts return to their initial positions. Traverse of the set of yarn fingers is effected by a pattern drum acting, through a rod 72, on an arm 71 projecting laterally from an arm 61 pivoted on a pin 62 and bearing at its upper end a channel 63 which receives a pin 64 projecting from a slidable 'frame 3 carrying the yarn fingers.
Patent GB-306118-A (GB)
Title: Improved means for heating the charge in multi-cylinder internal-combustion engines
IPC: F02M1/00
Filed: 1928-12-11
Abstract: 306,118. British Continental Motors, Ltd., (Assignees of Niven, A. M.). Feb. 16, 1928, [Convention date]. Vaporizers, external. - In a multicylinder engine in which the intake and exhaust manifolds 17, 24 are arranged on opposite sides of the cylinder block 10, a heating jacket 26 conected to the exhaust manifold by conduits 27, 30 is provided around the intake manifold 17, the inlet of the exhaust gases to the conduit 27 being controlled by a manually or automatically actuated valve 32. As shown, the cylinders 11 are provided with intake and exhaust ports 12, 13 controlled by sleeve valves 14.
Patent GB-156145-A (GB)
Title: Process for the manufacture of di-ols and diolefines
IPC: C25B3/29
Filed: 1920-12-31
Abstract: Diols are prepared by the electrolysis in acid solution of a mixture of aliphatic aldehydes and ketones in molecular proportions, whereby a simultaneous condensation and reduction takes place.  The same result is obtained by electrolyzing the condensation product of the aldehyde and ketone, e.g. ketobutanol or hydroacetylacetone.  The mixture is electrolyzed in a cell having an amalgamated cathode of magnesium, aluminium, lead, or alloys thereof, and with an anode separated by a diaphragm; or in the cathode space of a mercury cell without a diaphragm; or by the use of the filter electrode described in Specification 155,835, [Class 41, Electrolysis].  According to examples:-2 : 4-butandiol is produced by the electrolysis of a mixture of acetone and formaldehyde; 2 : 4-pentandiol results from the electrolysis of acetone and acetaldehyde; 3-methyl-2 : 4-pentandiol is obtained by the electrolysis of a mixture of methylethyl ketone and formaldehyde.  Dihalogen hydrocarbons can be prepared by treatment of diols with halogen acids, such as hydrobromic acids, in order to replace the hydroxyl group by halogens.  According to examples, 2:4-dibrombutane and 2:4-dibrompentane can be prepared in this way from 2:4-butandiol and 2:4-pentandiol respectively.  Diolefine hydrocarbons are obtained by the elimination of water p  from diols using known dehydrating agents such as phosphoric or other acids, potassium bisulphate, aluminium or zinc chloride; or by the removal of halogen acid from dihalogen paraffin hydrocarbons using amines such as aniline, quinoline, pyridine or their methyl derivatives.  According to examples:-erythrene is obtained by passing 2 : 4-butandiol over a heated dehydrating agent, or by the removal of hydrobromic acid from 2:4-dibrombutane; piperylene is produced by the dehydration of 2:4 -pentandiol or by the removal of hydrobromic acid from 2:4-dibrompentane; isoprene is formed by dehydrating 3-methyl-2:4-pentandiol.
Patent GB-1447594-A (GB)
Title: Method of preparing powder paint compositions
IPC: C09D5/46
Filed: 1974-08-20
Abstract: 1447594 Preparing powder paints FORD MOTOR CO Ltd 20 Aug 1974 [20 Aug 1973 (2)] 36601/74 Headings C3B and C3P Powder paint compositions are prepared by: (A) preparing a liquid paint by mixing (I) a copolymer containing reactive groups and having a glass transition temperature of 40- 90‹ C. and number average M.W. 1000-15,000, (II) an inert solvent and (III) pigment and passing this into an evaporating zone; (B) supplying heat to the zone to maintain the temperature above the melting point of I but below its degradation point and above the temperature at which II begins to vapourize; (C) passing the solution to a separating zone, whilst maintaining the temperature as in (B) above, causing II to vapourize and allowing the molten non-volatiles to collect in a molten state; (D) removing the volatile components; (E) cooling the non-volatiles to a solid; and (F) comminuting to form a pigmented powder. A modification of the method involves the additional steps: (G) blending a cross-linking agent with the powder from (F); (H) mixing at a temperature above the melting point of the particles but below that at which cross-linking occurs; (I) cooling to a solid; (J) comminuting the resultant solid to form a powder coating composition. In most of the examples I is a copolymer of glycidyl (meth)acrylate with other unsaturated monomers which may, e.g. be cross-linked with a salinated straight chain aliphatic dicarboxylic acid. In one example (18) the ractive monomer is 2-hydroxyethyl methaerylate and the cross-linking agent ZnCl 2 . The powder may contain a flow control agent, e.g. polylauryl acrylate.
Patent GB-1123584-A (GB)
Title: Powder mixture for the pressing of moulded bodies
IPC: B22F9/00
Filed: 1965-08-26
Abstract: A powder mixture for forming sintered metals comprises a metal powder such as iron, a dry organic lubricant and approximately 0.2% by weight of a dry inorganic oxidic compound having a mean particle size of less than 1 micron.  The oxidic compound may be at least one of the group: silicic acid, iron oxides, titanium oxide, zirconium oxide, in an amount of 25% by weight of the organic material which may be stearic acid, metal soaps, long chain alkones and alkenes, or long chain esters, amides and amines.  Alloy forming oxides such as iron oxides, nickel oxides and chromium oxides which are reduced during sintering may also be added.
Patent GB-1481224-A (GB)
Title: Processes of and apparatuses for manufacturing a product comprising a carrier web and a fibrous surface formed from a non-fibrous polymer
IPC: B29C67/00
Filed: 1974-08-21
Abstract: 1481224 Pile fabrics METZELER SCHAUM GmbH 21 Aug 1974 [21 Aug 1973 26 July 1974] 36803/74 Heading D1K A method of making a pile fabric wherein molten polymer is separated from a heated surface to draw fibrils from the polymer is characterised by allowing some of the polymer to remain adhered to the surface to as a continuous film with a thickness of at least 10 microns. A backing 19 and polymer 18 are fed to a heated roll 10 and separated from the roll over a cooling nozzle 14. Angles of separation 30 and inclination of nozzles 27 are given. The nozzle 14 may discharge gas, vapour, liquid, entrained solids or mixtures thereof. The film 20 remaining on the roll 10 is shrouded from the atmosphere by inert gas in a shroud 21. By using different polymers a laminate may be built up on the roll 10 producing pile having a mixture of polymers. Details of suitable polymers are given. The roll 10 may be replaced by a continuous belt (Figure 3, not shown).