baber/WOPTO huggingface dataset:
Patent GB-524138-A (GB)
Title: Improvements in manufacture of propeller blades
IPC: B21D53/78
Filed: 1939-07-03
Abstract: 524,138. Making screw-propellers; mandrels. DEHN, F. B. (Aviation Manufacturing Corporation). July 3, 1939, No. 19325. [Classes 83 (ii) and 83 (iv)] Hollow steel propeller blades are made from tubular blanks by bending the blank between dies so as to fold and curve the leading edge to its required shape and flatten the trailing edge, after which the trailing edge is welded along the required curve and the superfluous flattened material is trimmed off. A tubular blank is upset to form a thickened end b, Fig. 4, and a conical portion c, and is then shrunk on to a mandrel e, the temperature to which it is heated being kept below the Ac 3  temperature in order to avoid expansion during cooling and hardening of the metal. The blank is then reduced in thickness in a lathe with an automatically reciprocated cutter to produce opposite flattened sides e<SP>2</SP>, Fig. 4, the straight boundary e' being adjacent the leading edge and the curved boundary e<SP>4</SP> adjacent the trailing edge. After heating, again below the Ac 3  temperature, the mandrel e is removed, the ends of the blank plugged as shown in Fig. 6, and the blank is heated and supplied with internal hydraulic pressure whilst it is bent and flattened between dies g, g<SP>1</SP>, Fig. 7, to produce the shape shown in Figs. 6 and 7. The dies transfer irregularities from the outer surface of the blank to the inner surface. The trailing edge is then welded between roller electrodes at L<SP>4</SP>, Figs. 7 and 10, along the margin of the flattened portion e<SP>2</SP> and the unnecessary flattened portion L<SP>3</SP> sheared off, after which the blade is finished, polished and nitrided. The shaping of the blade is designed to produce the centre of pressure on all sections coincident with the longitudinal centre.
Patent GB-614014-A (GB)
Title: Improvement in electrodeposition of nickel from an acid bath
IPC: C25D3/12
Filed: 1946-06-28
Abstract: 614,014. Electrolysis. UDYLITE CORPORATION. June 28, 1946, No. 19369. Convention date, Aug. 27, 1945. [Class 41] A bath for electrodepositing fine-grained lustrous nickel comprises an aqueous acid nickel solution containing a soluble alpha or beta unsaturated aliphatic sulphonamide or sulphonimide, for example a vinyl (ethylene) sulphonamide or an allyl sulphonamide. The bath may also contain an aryl sulphonamide. or sulphonimide, an aryl sulphonic acid. or an aryl sulphone. Other nickel brighteners, for example salts of zinc or cadmium or thallous or mercuric salts may be used in the bath. The concentration of unsaturated organic compound may be between .05 grams per litre and saturation. The nickel solution may contain the chloride, sulphate, sulphamate or fluoborate of nickel, or certain mixtures of these nickel compounds. Specification 525,847 is referred to.
Patent GB-932583-A (GB)
Title: Improvements in the method of manufacturing cultivating discs for agricultural implements
IPC: A01B23/06
Filed: 1962-05-21
Abstract: 932,583. Making discs for rotary cultivators. INTERNATIONAL HARVESTER CO. May 21, 1962 [July 17, 1961; May 14, 1962], No. 19446/62. Classes 83 (2) and 83 (4). A method of forming notches in a cultivator disc comprises subjecting a disc blank to a single stroke of a press so as to firstly cut a series of notches in its periphery, and secondly to forge the peripheries of the notches to form an inclined surface from the sheared edges of the notch, said inclined surface intersecting a face of the disc. A disc blank has its periphery turned to an acute angle 13 (Fig. 1), is heated to approximately 800 C. and placed on a die 15 for simultaneous forming of the notches. Referring to Fig. 5, the blank is held between a pressure plate 17 and the die 15 ; as seen, each punch 18 has a parallel portion which shears the blank to form the notch, and a chamfered portion 21 which forges the edges of the notch at an angle to form a cutting edge. The notches may be formed singly, or in groups if the press capacity so requires. The cultivator disc is finally dished and heat treated. Specification 722,748 is referred to.
Patent GB-290861-A (GB)
Title: Improvements in blast tuyeres for shaft furnaces
IPC: C21B7/16
Filed: 1927-07-22
Abstract: 290,861. Gutehoffnungsh³tte Oberhausen Akt.-Ges., Wagner, A., and Pohl, E. July 22, 1927. Tuyeres. - A tuyere 5 for blast furnaces is provided with a tapering bore 6 rounded at 8 and has a separate blast nozzle 4 perforated at 7 extending through its r,ear end to about the middle thereof. Specifications 3821/83, 8146/07, 14976/11, 5846/12, 7206/14, 107,468, 197,671, and 272,216 are referred to.
Patent GB-1360312-A (GB)
Title: N-substituted derivatives of bleomycins
IPC: C07K9/00
Filed: 1972-04-27
Abstract: 1360312 N-substituted bleomycin derivatives NIPPON KAYAKU KK 27 April 1972 [28 April 1971 29 Sept 1971] 19585/72 Heading C2A The invention comprises bleomycins showing no definite melting, decomposition or boiling points and inhibiting gram-positive and gramnegative bacteria and having anti-tumour activity, the bleomycins being soluble in water and aqueous methanol; forming salts with acids and chelating with copper, giving positive reactions in Pauly, Ehrlich, Dragendorff and permanganate tests but negative Molisch, Biuret, Elson-Morgan, Maltol, Fehling, Tollens, Anthrone and ferric chloride reactions, having infra-red absorption bands at the following wave numbers (cm.<SP>-1</SP>) 1040-1075, 1710-1735, 1625-1680, 2910-2940 and being further characterized in that they give L-threonine; # - amino - # - (4 - amino - 6 - carboxy - 5- methyl - pyrimidine - 2 - yl) - propionic acid; 4 - amino - 3 - hydroxy - 2 - methyl - n - valeric acid; # - hydroxyhistidine ; L - # - aminoalanine; L - gulose; 3 - 0 - carbamoyl - D - maunose; 2<SP>1 </SP>- (2 - aminoethyl) - 2,4<SP>1</SP> - bithiazole - 4- carboxylic acid and each amino component compound corresponding to the side chain portion upon acid hydrolysis, and said bleomycins having a partial hydrolysate structure represented by the Formula I wherein P is -NH-(CH 2 ) 3 -NH-, wherein R is hydrogen except where Q represents R or -SO 2 R, a saturated or unsaturated, straight or branched chain alkyl group, or a cycloalkyl, phenyl, naphthyl, aralkyl or heterocyclic group, these groups being optionally substituted, R<SP>2</SP> is an alkyl group, R<SP>3</SP> is hydrogen, a C 1 -C 3  alkyl group or a methyne group, R<SP>4</SP> is hydrogen, a C 1 -C 3  alkyl or nitro group and n is an integer of from 1 to 7. A process for producing N-substituted derivatives of bleomycins comprises reacting 3-aminopropylaminobleomycin, 3 - (N - 4 - aminobutyl)aminopropylaminobleomycin or 3 - (N - methyl - N - 3- aminopropyl)aminopropylaminobleomycin with a compound of formula R-Y wherein R is hydrogen (except when R represents -X or -SO 2 X), a saturated or unsaturated, straight chain or branched chain alkyl, cycloalkyl, phenyl, naphthyl, aralkyl or heterocyclic group, these groups being optionally substituted and Y is carboxyl or a reactive derivative thereof, -X wherein X is halogen, -SO 2 X, NCO- or wherein R<SP>2</SP> is alkyl. The reaction may be carried out in a solvent consisting of water, methanol, ethanol, acetone or a mixture thereof. The reaction may be carried out at a temperature of 10 to 25‹ C. in the presence of pyridine, sodium bicarbonate and triethylamine. The bleomycins are believed to have the formula wherein P and Q are as defined above.
Patent GB-915694-A (GB)
Title: Polypropylene film manufacture
Inventor: PALMER REX PERCIVAL
IPC: B29C55/14
Filed: 1960-06-02
Abstract: Polypropylene film is biaxially oriented by a sequential stretching process in which a first stretch is carried out at 155 DEG -168 DEG C., and either the film is not allowed to cool below 130 DEG C. and is then stretched transversely to the first stretch at 155 DEG -168 DEG C. or, if the film is allowed to cool below 130 DEG C., it is stretched transversely at 160 DEG -168 DEG C. if the second stretch ratio is lower than the first, or at 163 DEG -168 DEG C. if the second stretch ratio is greater than or equal to the first stretching ratio.  The film may be made by melt extrusion, preferably at above 214 DEG C., followed by quenching.  Preferably, the film is not allowed to cool to below 140 DEG C. between the stretching steps and is stretched in both steps at 155 DEG -168 DEG C.  Especially, the film is not allowed to cool to below 155 DEG C.  Stretching may be so carried out as to produce a balanced biaxially oriented polypropylene film. Specifications 840,191 and 873,220 are referred to.
Patent GB-1357891-A (GB)
Title: Electric motor control apparatus
IPC: H02P7/00
Filed: 1970-04-23
Abstract: 1357891 Control of DC motors DEWHURST & PARTNER Ltd 23 July 1971 [23 April 1970] 19610/70 Heading H2J A reversible compound D.C. motor having an armature 10, series field winding 12 and shunt field winding 14, is controlled by a main contactor having contacts 20, 22, 24, a first control contactor having normally-open contacts 26 and change-over contacts 28 and a second control contactor having change-over contacts 30, the arrangement being such that operation of the control contactors to a first position, corresponding to the hoist direction of a crane including the motor, energizes the winding 14 from a source 18 through a resistor 42, and the combination 10, 12 from a source 16, whilst operation to a second position corresponding to the lower direction fully energizes the winding 14, removes the winding 12 from the circuit and reverses the connections of the source 16 to the armature 10, which is shunted by a resistor 38 for absorbing most of the regenerative current produced by the motor (should it overrun) that would otherwise be applied to the source 16. Operation of the contactors to a third (off) position, in which the main contactor is opened, places a short circuit across the series combination 10, 12 so that a braking torque is produced which assists an electro-mechanical brake 44 operable when the contacts 24 open. The source 16 may comprise an engine-driven generator whose speed or excitation may be controlled when controlling the contactors, whilst the source 18 may comprise a battery. The contact positions for the various operating conditions are described, Figs. 2A, 2B and 2C (not shown).
Patent GB-283241-A (GB)
Title: Improvements in or connected with secondary batteries or accumulators
IPC: G01N9/18
Filed: 1927-05-02
Abstract: 283,241. Woodhouse, P. M. May 2, 1927. Systems of charging and discharging galvanic batteries.-A device for breaking the charging circuit of an accumulator when the latter is fully charged consists of an electromagnet d, the armature j of which is carried by a framed h attached to a float c in the battery. Attached to the frame h is a metal strip g which makes contact with two studs f, f<1>, the stud f being connected directly to a terminal k, the stud f<1> being connected to a second terminal k through the winding of the magnet d. When the float c is in its lowest position, the armature j rests upon the projecting core e of the electromagnet, and the charging circuit is completed through the studs f, f<1> and strip g. When the battery is fully charged the upthrust on the float c is greater than the attraction between the armature j and core e and the float rises suddenly and breaks the contacts between the strip g and studs f, f<1>.
Patent GB-381594-A (GB)
Title: Improvements in electric measuring instruments
IPC: G01R5/14
Filed: 1931-07-08
Abstract: 381,594. Current and pressure meters, GENERAL ELECTRIC CO., Ltd., Magnet House, Kingswav, London, TURNER, H. C. and POLGREEN, G. R., Peel Works, Silk Street, Salford, Lancashire. July 8, 1931, No. 19691. [Class 37.] A measuring instrument of the moving-iron type suitable for use on both alternating and direct current circuits comprises an operating-coil 3, a moving magnetic element 1 adapted to move within the operating-coil, and a body 4 arranged around the operating-coil and made of compressed and insulated magnetic powder. In the construction shown, the moving element 1 comprises a circular disc secured to a vertical spindle 2 carrying a pointer 5. Arranged around the coil 3 are three rectangular plates 4 of compressed and insulated magnetic powder such as nickel-iron alloy particles treated to give it a high permeability. The powder is preferably that known under the Registered Trade Mark " Gecalloy." Two additional plates such as 4 may be provided at the ends of the instrument, so that the coil 3 is entirely surrounded by these plates. The moving disc 1 may be of similar material to the plates 4, or may be made of one or more sheets of solid metal having high permeability. The instrument may be of the repulsion type. In a modification described in the Provisional Specification, the operating-coil is disposed on a ring-shaped core of powdered magnetic material arranged in a vertical plane with its axis horizontal. The moving element moves horizontally in a gap in the core and is made from a sheet of the material known under the Registered Trade Mark " Gecalloy " about 1 mm. thick. It is shaped to give a linear scale, the machining and shaping being done before the material is heat treated to give it a high permeability.
Patent GB-1114051-A (GB)
Title: Detecting apparatus for strands
Inventor: DORNBERGER GEORG
IPC: H01B13/02
Filed: 1965-05-11
Abstract: 1,114,051. Electricselective signalling. WESTERN ELECTRIC CO. Inc. 11 May, 1965 [11 May, 1964], No. 19770/65. Heading G4H. [Also in Division B8] An apparatus for detecting the absence of a strand to be wound on a cable comprises gated photo-electric detectors. Each binder head, which rotates about the cable axis and carries the strand spools, has on it a reflecting strip which is detected by a photo-detector, thereby providing gating pulses whose frequency and duration varies.with the speed of rotation of the head. Photo-detectors, one for each strand, are mounted on a fixed support and generate a pulse each time a strand is detected. For a pair of strands, two photo-detectors are so arranged that their respective outputs, when gated, contain only pulses relating to one and to the other strand. These gated outputs set and reset a toggle which feeds a flip-flop whose unstable state is sufficiently long to maintain a relay operated even at low binding speeds. If a strand breaks, the flip-flop, and hence the relays, are no longer operated, this stopping the binding and initiating an alarm. Single strands are detected by turning the gate on permanently.
Patent GB-876588-A (GB)
Title: Carbamic acid esters and means for producing the same
Inventor: CAVALLA JOHN FREDERICK
IPC: C07C271/06
Filed: 1960-06-03
Abstract: The invention comprises carbamic acid esters of 2-trichloromethyl-pent-4-yn-2-ol and 3-trichloromethyl-pent-4-yn-3-ol and the preparation thereof by reacting the appropriate trichloromethyl-pentynol with an alkali metal, an alkali metal amide, an alkali metal hydride or an alkaline-earth metal hydride and treating the resulting metal salt successively with phosgene, to provide the corresponding chloroformate, and ammonia.  The products are sedatives and hypnotics.  3-Trichloromethyl-pent-4-yn-3-ol is prepared by reacting 1,1,1-trichlorobutan-2-one with ethynyl magnesium bromide.  1,1,1-Trichlorobutan-2-one is prepared by reacting ethyl magnesium bromide and trichlorocetyl chloride.
Patent GB-1115609-A (GB)
Title: Lint remover
IPC: A47L25/00
Filed: 1967-04-28
Abstract: 1,115,609. Cleaning fabrics. S. RAMELSON. 28 April 1967, No. 19825/67. Heading DIP. A lint-removing roller comprises a hollow replaceable cylinder on which is wound, in a plurality of layers, a strip of pressure-sensitive adhesive material 35 having a non-adhesive border 45 at one or both edges and having a slit 41 extending through substantially all the layers. The slit may be parallel, or at an angle of 10-70‹, to a line normal to the edges. The non-adhesive border(s) and the slit enable a used layer to be readily removed so exposing the next layer for further use.
Patent GB-384937-A (GB)
Title: An improved combined honing and boring machine
IPC: B23Q39/02
Filed: 1932-07-14
Abstract: 384,937. Boring-machines. KELLENBERGER, L., (trading as KELLENBERGER & CO., L.), 28, Heiligkeuzstrasse, St. Gallen, Switzerland. July 14, 1932, No. 19893. Convention date, July 24, 1931. [Class 83 (iii).] A combined honing and boring machine for the cylinders of internal-combustion engines, has a motor or single pulley drive and a vertical pillar supporting a honing-head, which carries a boring-head, so arranged that either head may, by rotation about the pillar, be brought into operative position. The machine may have the honing-head b, carrying a honing-tool d, on the opposite side of the pillar a from the boring-head e, with the drive taken from a motor h or from a pulley i, Fig. 6, through bevel-gearing k<1> .. k<8> and gearing l<1>, l<2>, l<4>, or the boring-head may be on the same side of the pillar as the honing-head, Fig. 4 ; the heads are also adjustable vertically on the pillar. In a modified construction, the heads are caused to rise or fall, as they are turned about the pillar a, by means of a cam on the pillar and stops on the head. In a further modification, two boring tools are mounted in the boring- head to give a rough cut and a finer cut before honing. The cylinder o being treated is mounted on a table n.
Patent GB-1180936-A (GB)
Title: Garbage Collectors.
Inventor: SANDSTROEM LENNART OESTEN EVER
IPC: A01D51/00
Filed: 1967-05-01
Abstract: 1,180,936. Endless conveyers. HOLMS INDUSTRIA A.B. 1 May, 1967, No. 19895/67. Heading B8A. A garbage collecting vehicle comprises a shoot 10 up which garbage, swept to the foot of the shoot by a rotating brush (not shown), is propelled by pushers 16. The latter are carried by freely moving endless belts 20, and are driven by frictional engagement with a rubbertyred member 22. The latter is driven by an hydraulic motor 48. The belts may be tensioned by relative adjustment of tubes 24 and 34.
Patent GB-745088-A (GB)
Title: Process for the manufacture of salts of sulphuric acid esters of leuco vat dyestuffs of the anthraquinone series
IPC: C09B9/02
Filed: 1953-07-17
Abstract: Methylene - 4.41 - bis - (N.N - diethylcyclohexylamine) is prepared by catalytic hydrogenation of 4.41-tetraethylamino-diphenylmethane. 4.41 - Tetraethylaminodiphenylmethane is obtained by treating diethylaniline with formaldehydehydrogen chloride. Specification 719,621, [Group IV (c)], is referred to.ALSO:Vat dyes of the anthraquinone series, which are difficult to esterify, as defined in Specification 719,621, are converted to their leuco-sulphuric esters by treating in a mixture of ae-picoline and methylene -4, 41-bis-(N. N-diethyl-cyclohexylamine) (see Group IV(b)) containing 10-60 per cent of the latter, and in presence of finely divided iron, cobalt, nickel, copper, or copper alloy, with chlorsulphonic acid in the form of its addition products with the said bases (minimum proportions specified below), and the sulphuric ester compound is converted to a water-soluble salt.  For each anthraquinone nucleus in the dyestuff, it is necessary to use at least 2 mols chlorsulphonic acid, at least 1.4 mols of methylene-4, 41- bis-(N, N-diethyl-cyclohexylamine), (but not less than 2 mols of said amine for 2 mols acid if less than 4 mols acid used), and at least 1.5 atomic proportions of the metal. Water-soluble sulphuric ester salts specified are the lithium sodium, potassum, ammonium, and hydroxyalkylamino salts.  The metal may be subjected to an etching treatment before use in the esterification process, e.g. with glacial acetic acid, or by treatment with the esterification reactants other than the dyestuff.  Examples describe the esterification of 1.5- and 1.4-dibenzoylaminoanthraquinones, 1-benzoylamino-4-(41-dimethylsulphonamido) benzoylamino-anthraquinone, carbazolised di-(51-benzoylamino -11 anthraquinonyl) -8- diaminochrysene, the carbazole from 1.4-diaminoanthraquinone and 1-chloro-8-benzoyl-amino-anthraquinone, the anthrimide from 1, 3-dichloro-2-methyl-anthraquinone and 1, 4-monobenzoyldiaminoanthraquinone.
Patent GB-1043302-A (GB)
Title: Electrodes, primarily for capacitors
Inventor: RUNTZ JEAN WILLIAM
IPC: H01G9/042
Filed: 1964-05-13
Abstract: 1,043,302. Capacitors. CONSOLIDATED ELECTRONICS INDUSTRIES CORPORATION. May 13, 1964, No. 19963/64. Heading H1M. An anode for an electrolytic capacitor comprises a straight unetched wire 10, Fig. 4, a straight etched wire 12 welded at its straight end to the unetched wire and terminating in a shaped jumble, and a dielectric coating applied over the wires. The wire 12 may be straight initially and may be deformed inside a cylindrical die so that it will fit inside a similar cylindrical silver cathode, with the interposition of a non- absorptive paper. The electrolyte may be an aqueous solution of lithium chloride or lithium bromide, and the cathode casing may be sealed by a P.T.F.E. bushing as in Specification 1,043,303. Alternatively the electrolyte may be solid, manganese dioxide being applied to the anode and coated with graphite and copper, and the electrode inserted in a cathode lined with solder, the unit then being heated to melt the solder. The anode wires are preferably of tantalum which is oxidized to form a surface coating of oxide.
Patent GB-1037916-A (GB)
Title: Improvements relating to roof supports for mine workings
IPC: E21D23/00
Filed: 1963-01-29
Abstract: 1,037,916. Advancing mine-roof supports. K. M. GROETSCHEL. Jan. 29, 1963 [May 12, 1962; Nov. 10, 1962], No. 20046/64. Divided out of 1,037,911. Heading E1E. The subject matter of the present Specification is the same as that of the parent Specification but the claims differ.
Patent GB-1339844-A (GB)
Title: Device for accomodating and positioning the dummy ingot in a curved continuous installation
IPC: B22D11/08
Filed: 1971-04-19
Abstract: 1339844 Continuous casting FIVES LILLE CAIL and KONSTRUKTIONSBURO FUR STAHL UND WALZWERKE 19 April 1971 [23 Jan 1970] 20096/71 Heading B3F A cradle 32 for holding a starter 36 is borne by a carriage 24 running on a track 22, extending above a curved casting-guideway 14 and from a position adjacent the mould 10 to a starter discharge position (on rollers of a run-out table 20 for introducing the starter 36 into the cradle and for removing the casting cut from the starter by shears 18). At the end of a casting run, the carriage 24, with a cradle-carrying arm 28 retracted, is brought to the position indicated in dot-dash lines, bearing the starter 36. By means of a cable of a ladle crane 38, the starter 36 is lifted into the mould 10, with the aid of a guide 40, for a fresh run. The cradle 32 might be detached and lifted with the starter to lower the latter into the mould or, with a longer track 22, the arm 28 could be extended to present the cradle above the mould. The guideway 14 has driven rollers which hold and lower the starter 36. A withdrawing and straightening device 16 precedes the shears 18. The cradle 32 has upper and lower rows of cross members, bracing two sides forming a housing for the starter, and rollers 34 at the top. Notches on the lower edges of the sides and between the lower cross members are spaced to correspond to the rollers of the runout table 20. Retractable abutments can hold the starter in the housing. In another embodiment, the cradle is pivoted at the end of the carrying arm and adjustably inclined thereto by a jack and has driven rollers by which the starter can be moved in the cradle. By these means the starter can be introduced between upper rollers of the guideway, a group of rollers being withdrawable to facilitate this. The arm 28 may be pivoted on the carriage 24 to facilitate raising of the cradle above the mould. Instead of the arm 28, pulley blocks might be used to connect the cradle to the carriage.