baber/WOPTO huggingface dataset:
Patent GB-456478-A (GB)
Title: Process for improving the structure of steel products
IPC: B21B1/02
Filed: 1935-11-22
Abstract: 456,478. Altering physical structure. VEREINIGTE STAHLWERKE AKT.-GES., 69, Breitestrasse, D³sseldorf, Germany. Nov. 22, 1935, No. 32452. Convention date, Feb. 21. [Class 83 (iv)] In a process for improving the structure of raw or cast ingots in which all the sides are of open grain structure, by transposing crystallites into a position parallel, or approximately so, to the surface, each corner is rolled inwardly towards the axis of the ingot to convert the corner into a surface. The ingot a is first rolled edgewise between rolls b, c then turned through 90‹ and rolled again to produce the bar d. This process may also be carried out by pressing or forging. Specification 157,166, [Class 83 (iv)], is referred to. The Specification as open to inspection under Sect. 91 also described the method of carrying out the process in a series of roll passes in which only one edge was rolled flat in each pass. This subject-matter does not appear in the Specification as accepted.
Patent GB-797055-A (GB)
Title: Improvements in and relating to electrical communication systems
IPC: H03G3/30
Filed: 1955-11-14
Abstract: 797,055. Volume controlling. SVENSKA RELAFABRIKEN AKTIEBOLAGET. Nov. 14, 1955 [Nov. 29, 1954], No. 32549/55. Class 40 (4). In a communication system in which the level of a transmitted signal is dependent on the intensity of a direct current supplied over the line to a transmitting apparatus (e.g. a system using a carbon granule microphone), the intensity of the D.C. applied to the line is controlled in dependence on the strength of signal voltages arriving at the receiving station. Direct current supplied to the " send " transistor amplifier F1, Fig. 1, over line L from a battery B is controlled by an opposed voltage produced in a rectifier LR by the received signals. The arrangement which produces amplitude compression may alternatively be modified to effect compression and hence limitation on high level signals, and expansion on low level signals. The source B and rectifier LR may be replaced by a single unit wherein the D.C. power is derived from a mains source and regulation of the output is effected directly by the received signals. In this arrangement the rate at which the current may increase may by the inclusion of filtering devices be made to differ from that at which it may be reduced. In a further embodiment described with reference to Fig. 2 (not shown), a push-pull transistor amplifier at the transmitter has its collectors fed with controlled D.C. over the line wires and the circuit is completed to their commoned emitters over a separate conductor.
Patent GB-900448-A (GB)
Title: Cyanohydropyridine derivatives and process for their manufacture
IPC: C07D211/60
Filed: 1960-02-29
Abstract: The invention comprises cyanohydropyridine derivatives of the formula:-  <FORM:0900448/IV (b)/12> <FORM:0900448/IV (b)/23> and salts and quaternary derivatives thereof, in which Z and one of the symbols X and Y each represents the nitromethyl group or a group of the formula -C(R1R2)CN and the other symbol represents the cyano group, R represents a C1-7 aliphatic (including cycloaliphatic) hydrocarbon radical or a benzyl radical, R1 represents an aromatic or unsaturated heterocyclic radical of aromatic character (e.g. pyridyl or thienyl) and R2 represents a hydrogen atom, an unsubstituted or substituted hydrocarbon radical or a heterocyclic radical (e.g. a pyrrolidino-, piperidino-, morpholino- or piperazino-alkyl radical). Specified substituents in aromatic R1 and R2 radicals are chlorine, bromine, trifluoromethyl, alkoxy, hydroxy, alkylmercapto, amino, substituted amino, nitro and methylenedioxy.  The above cyanohydropyridine derivatives are prepared by reacting a 1-R-3-cyano-1,6-dihydropyridine or a 1-R-3- or -4-cyano-1,2,5,6-tetrahydropyridine with nitromethane or a compound of the formula (R1R2)CH-CN in the presence of a basic condensing agent, and if desired, reducing a resulting adduct containing a double bond in the hydropyridine nucleus with an alkali metal-earth metal hydride or alkali metal borohydride.  The products may be subsequently quaternated with, for example, halides, sulphates and sulphonates, and further converted into hydroxides.  Alternatively, the products may be converted into acid-addition salts with hydrohalic, sulphuric, phosphoric, nitric, perchloric, carboxylic and sulphonic acids.
Patent GB-643377-A (GB)
Title: Improved sequins or like ornamental articles
IPC: A41D31/00
Filed: 1947-12-10
Abstract: 643,377. Ornamenting. BUCKINGHAM, H. L. Dec. 10, 1947, No. 32576. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 23, 1948.] [Class 93] [Also in Group VII ] A sequin 10, ornamental button or the like, of thin material has a cut formed therein, the material on opposite sides of the cut being pressed down to form two claws 11, which are bent round a thread, wire, or inserted through a piece of fabric or the like and bent inwardly to grip the latter. The two rectangular claws 11, pressed down from a short radial cut, are preferably inclined towards one another and formed to one side of the sequin. After placing a thread 12 between the claws the latter are urged inwards, by pressing the sequin against a flat plate, to lie almost flush with the sequin. A plurality of overlapping sequins may be secured to a single thread for attachment to a garment. Alternatively a plurality may be placed in rows on a strip of fabric under which a plurality of threads lie in spaced parallel arrangement, so that the claws are immediately above the threads; by placing the whole on a supporting surface and pressing on the sequins, the claws are forced through the fabric and are urged towards one another to grip the threads. In the latter case the threads may be dispensed with.
Patent GB-341975-A (GB)
Title: Improvements in and relating to preparations which yield oxygen on heating, particularly for respiratory purposes
IPC: C01B13/02
Filed: 1929-10-26
Abstract: Preparations yielding oxygen when heated, the necessary temperature being maintained by the reaction of combustible substances with a part of the oxygen evolved, comprise oxygen carriers such as chlorates or perchlorates, and silicon or metals in the form of alloys, for example a ferrosilicon or ferromanganese, as the combustible substances, carbon or carbon, containing substances being excluded.  To prevent instability of the preparation alkaline substances may also be added, preferably to the oxidizable substances before admixture with the oxygen carriers.  The compositions may also contain asbestos, preferably in fibrous form, the asbestos being impregnated with alkaline substances.  The asbestos may also be impregnated with catalysts such as metal oxides or cobalt.  The preparations may be in the form of a compressed body surrounded by a heat insulating jacket of magnesia-usta, kieselguhr or the like, which may contain alkaline additions and which may be mounted on asbestos, metal wire fabric or the like.  According to an example, a preparation consists of potassium chlorate, ferrosilicon which has been previously admixed with calcium hydroxide, and asbestos which has been freed from organic matter by heating and on which cobalt has been deposited.  Specification 304,292, [Class 90, Nonmetallic elements], is referred to.ALSO:Preparations yielding oxygen for respiratory purposes when heated for the necessary temperature for the reaction being maintained by the reaction of combustible substances with a part of the oxygen evolved, comprise oxygen carriers such as chlorates or perchlorates and silicon or metals in the form of alloys, (for example a ferrosilicon or ferromanganese), as the combustible substances, carbon or carbon containing substances being excluded. To prevent instability of the preparation alkaline substances may also be added, preferably to the oxidisable substances before admixture with the oxygen carriers.  The compositions may also contain asbestos, preferably in fibrous form, the asbestos being impregnated with alkaline substances.  The asbestos may also be impregnated with catalysts such as metal oxides or cobalt.  The preparations may be in the form of a compressed body surrounded by a heat insulating jacket or magnesiausta, kieselguhr or the like, which may contain alkaline additions and which may be mounted on asbestos, metal wire fabric or the like.  According to an example, a preparation consists of potassium chlorate, ferro-silicon which has been previously admixed with calcium hydroxide, and asbestos which has been freed from organic matter by heating and on which cobalt has been deposited.  Specification 304,292, [Class 81 (ii), Medical &c. appliances], is referred to.
Patent GB-287642-A (GB)
Title: An improvement in connection with the use of sheet abrasive material
IPC: B24D15/02
Filed: 1926-12-24
Abstract: 287,642. Brown, R. S. Dec. 24, 1926. Tools. - A block for holding sheet abrasive material is made in two parts A, B secured together by a screw C, or other means, pins G being provided on the parts to penetrate one or more abrasive sheets F, which is or are passed round the part B and clamped between the two parts, tension being applied by a rib or ribs J on one part entering a corresponding recess or recesses on the other part. A soft backing E may be provided on the part B; if the packing is resilient, it may be clamped between the blocks with the abrasive sheet; the abrasive sheet may be omitted, granular abrasive material being applied loosely to the resilient backing.
Patent GB-931221-A (GB)
Title: Steroid compounds
IPC: C07J21/00
Filed: 1959-09-25
Abstract: The invention comprises steroids of the general formulae <FORM:0931221/IV(a)/1> <FORM:0931221/IV(a)/2> <FORM:0931221/IV(a)/3> wherein X represents a hydrogen or halogen atom, R represents a keto or hydroxy group, R1 represents a hydrogen atom, an acyl group, or an ester group derived from an inorganic acid; a process for the preparation of 6a ,16b -dimethyl-cortisone or -hydrocortisone by reacting 3-ethylenedioxy-6,16b -dimethyl-11-keto (or b -hydroxy) 17(20),20(21)-bismethylenedioxy-5-pregnene, which may optionally be prepared by a process described in Specification 931,224 with p-toluene sulphonic acid followed by acetic acid and, when required, esterifying to produce a corresponding 21-ester; a process for the preparation of a 21-ester of 3,20-diketo-6a ,16b -dimethyl-17a ,21-dihydroxy- 4,9(11) -pregnadiene or -1,4,9(11)-pregnatriene by reacting a 21-ester of 6a ,16b -dimethylhydrocortisone or of 6a ,16b -dimethyl-prednisolone with an alkane sulphonyl halide; a process for the preparation of a 21-ester of 6a ,16b -dimethyl-9a -bromo-hydrocortisone or -prednisolone by reacting a 21-ester of 3,20-diketo-6a ,16b -dimethyl-17a ,21-dihydroxy- 4,9(11) -pregnadiene or -1,4,9(11)-pregnatriene with an N-bromoimide and optionally reacting this compound with sodium or potassium acetate to produce a 21-ester of 3,20-diketo-6a ,16b -dimethyl-9b , 11b -oxido- 17a ,21-dihydroxy- 4-pregnene or -1,4-pregnadiene; the preparation of a 21-ester of a 9a -halo-hydrocortisone or -prednisolone by reacting a 21-ester of 3,20-diketo-6a ,16b -dimethyl-9b ,11b -oxido- 17a , 21-dihydroxy-4-pregnene or -1,4-pregnadiene with a hydrohalic acid and optionally oxidising this compound to the corresponding 11-keto compound; a process for the preparation of a 6a ,16b -dimethyl-prednisolone or -prednisone or a 21-ester thereof by reacting the corresponding 4-pregnene with selenium dioxide; a process for the preparation of 6a ,16b -dimethyl-prednisolone by dehydrogenating a 21-ester of 6a ,16b -dimethyl-hydrocortisone or of 6a ,16b -dimethyl-cortisone with Schizomycetes microrganisms such as of the species Bacillus sphaericus; and a process for the preparation of 9a -halo-6a ,16b -dimethyl-prednisolone or -prednisone or a 21-ester thereof by reacting the corresponding 4-pregnene with selenium dioxide.  In all the above processes a product containing a 21-ester group may be hydrolysed to a 21-hydroxy compound, or a product containing a 21-hydroxy group may be esterified to form a 21-ester compound.  Specifications 867,786 and 867,787 also are referred to.
Patent GB-1149962-A (GB)
Title: Gas liquefier
Inventor: GARRETT MICHAEL ERNEST
IPC: F25B9/02
Filed: 1965-07-30
Abstract: 1149962 Gas liquefaction apparatus BRITISH OXYGEN CO Ltd 22 July 1966 [30 July 1965]  32783/65 Headings F4H and HG13 A permanent gas, e.g., air, liquefaction apparatus comprises a single length of helically wound capillary tubing 11 doubled into a U-shaped element 10 which is then wound helically round a mandrel 12 and inserted in a Dewar flask 23; the free ends of the tubing 11 being sealed into a header 13 to which is admitted compressed air and the base of the element 10 being apertured to provide an expansion orifice 24.
Patent GB-1312145-A (GB)
Title: Supplemental strengthening of laminated articles
IPC: C03B27/00
Filed: 1970-07-07
Abstract: 1312145 Glass laminate CORNING GLASS WORKS 7 July 1970 [9 July 1969] 32792/70 Heading C1M A laminated glass article is formed from a plurality of fused adjacent laminµ, wherein each outer lamina has a lower coefficient of expansion than an inner lamina adjacent thereto, and wherein successive laminµ alternately have higher and lower coefficients of expansion, the article having a compressively stressed outer zone and a tensilely stressed inner zone, the outer zone consisting of an outer sub-zone of maximum compressive stress and an inner sub-zone in which the compressive stress changes in value to a point of transition from compressive to tensile stress. The article, which may be table-ware, is produced by providing a multi-ply laminated glass article having a compressively stressed surface ply and at least one tensilely stressed inner ply and wherein each ply exhibits a state of stress opposite to that of adjacent plies, and subjecting the article to a thermal tempering step, for which quenching air or molten salt or oil baths are suggested. Numerous examples are given of suitable glasses including spontaneous opal glasses or opal glassceramics. Preferably the glass forming the outer layers having a coefficient of expansion between 30 to 80 Î 10<SP>-7</SP>/‹ C. and the alternate layers an expansion coefficient of between 60 and 110 x 10<SP>-7</SP>/‹ C. Specifications 1,264,414 and 1,264,411 are referred to.
Patent GB-304430-A (GB)
Title: Improvements in or relating to apparatus suitable for the reception of wireless telephony
IPC: H03D1/00
Filed: 1927-12-05
Abstract: 304,430. Graham Amplion, Ltd., and Turner, P. K. Dec. 5, 1927. Receiving systems; thermionic detectors; filter circuits.-A wireless detector is connected to its low-frequeny load impedance through a low-pass filter circuit which is designed to bye-pass the radio frequency currents without attenuating the highest audio-frequency components. Fig. 6 shows the arrangement for a crystal detector 15 feeding an output transformer 14. The filter comprises series chokes 6, 7 which may have an inductance of about half a henry, and shunt capacities 9, 11 of about 0.0001 microfarad. The filter commences with a shunt capacity 11 at its input end, and finishes with a series choke 6 at its output end. The crystal may be replaced by the plate circuit of a valve detector (Fig. 5, not shown), and the output may be taken by resistance-capacity or other coupling to the grid circuit of a low-frequency amplifier (Fig. 4, not shown). Fig. 8 shows the filter applied to the grid circuit of a leaky-grid detector, the chokes 19, 20 being connected in series with the grid leak 16, and the condensers 21, 22 being connected on one side to the high-potential end of the input circuit 23, and on the other side to opposite ends of the choke 19. A similar arrangement is employed for a grid-leak detector in which the leak is in series with the input coil (Fig. 7, not shown). In all cases, the filter offers low impedance to radio-frequency input currents even if its output side is open-circuited, while regarded from its output side it has high impedance for audio-frequency currents if its input side is open-circuited.
Patent GB-910755-A (GB)
Title: Improvements in liquid charging devices for hydraulic pit props
Inventor: HILLIE EDWARD FRANCIS HERBERT
IPC: E21D15/59
Filed: 1959-09-28
Abstract: 910,755. Reciprocating pumps; pipe connections. DOWTY MINING EQUIPMENT Ltd. Sept. 19, 1960 [Sept. 28, 1959], No. 32895/59. Classes 99(1) and 102(1). A pump is attachable to a pit prop by means of jaws 52, 53 and when so attached a nozzle 46 on the pump engages in a socket 13 on the prop. The pump piston 35 is actuated by a crankshaft 39 and a hand lever 41 which in one position opens a valve 27 controlling flow from a pressure inlet 22 so that liquid flows into the pump and through a valve 45 to act on a hollow piston 48 which slides in the nozzle 46 against the action of a spring 49 causing a sealing member 62 to engage a valve housing 15 on the prop and a valve 64 in the piston 48 to open whereby pressure liquid flows through valves 16, 17 to extend the prop, further pressure being exerted by actuation of the pump. The Provisional Specification describes a pump which is connected to a prop by a bayonet joint.
Patent GB-1316855-A (GB)
IPC: E02B7/20
Filed: 1970-07-07
Abstract: 1316855 Movable barrages SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM) 7 July 1970 [5 Jan 1970] 32898/70 Heading E1H [Also in Division G1] A float-operated control gate, which is designed for locations in a liquid channel 11 for controlling the flow F of liquid along the channel so as to maintain a constant liquid level N on the downstream side of the gate, comprises a gate member 1 secured to one end of, and a float member 4 secured to the other end of, an arm 3 which is movable about a pivot 2, the arm carrying a ballast chamber 7 to which ballast may be supplied through an opening 8. The float is contained within a tank 5 which communicates with the downstream side of the gate member 1 by way of an aperture 6 which opens toward the downstream side of the tank 5, the aperture being protected from flow upstream of the tank by means of an extension 10 which projects from tank wall 9 to a point beyond the line of the other tank wall 5.
Patent GB-876773-A (GB)
Title: Shoe with vulcanized-on sole structure
IPC: A43B9/20
Filed: 1957-10-22
Abstract: 876,773. Boots &c. LEMM, H., [trading as ROMIKA KOMM.-GES. LEMM & CO.]. Oct. 22, 1957 [Oct. 24, 1956], No. 32963/57. Class 17 (2) A method of making a shoe comprises stamping out an outer sole 10 of rubber, synthetic material or leather to a larger size than the wearing surface and inserting it in a mould comprising a base plate 8 and a divisable frame 9 so that it folds upwardly at its margin 11. A rubber mix for a cushion sole 15 is then inserted and the mould is closed by an upper insole assembly 5. for the process of vulcanising or welding the parts together. The folding up of the outer sole margin can be facilitated by making the margins of a softer mixture or by treating the margins with a softening mixture and by skiving the edge 13. Thus a relatively sharp edge can be produced. The outer sole is folded into the cushion sole 15 round the whole periphery of the sole leaving its outer skin 12 undamaged as no trimming is required. In regions such as the toe and heel the outer sole may be carried further up to provided mechanical protection. Specifications 839,367 and 856,624 are referred to.
Patent GB-817203-A (GB)
Title: Improvements in or relating to magnetic recording
Filed: 1957-10-22
Abstract: 817,203. Magnetic recording and reproducing apparatus. TOKYO DENKI KAGAKU KOGYO KABUSHIKI KAISHA, and HOSHINO, Y. Oct. 22, 1957 [Oct. 23, 1956; April 6, 1957 (2)], No. 33000/57. Class 40 (2). In a magnetic sound record apparatus employing a sheet record and mounting panel setting means on the sheet and moving means on the panel are provided to facilitate mounting and dismounting of the sheet and to stretch it for properly recording and reproducing. In the embodiments described, the sheet is provided with two or more locating holes and the mounting plate is provided with locating pins, all but one of which is movable. Fig. 1 shows an embodiment employing four pins and holes. The mounting plate 1 has a stationary pin 2, an outwardly transversely spring-loaded pin 2<SP>1</SP>, an outwardly longitudinally spring-loaded pin 2<SP>111</SP> and an outwardly diagonally spring-loaded pin 2<SP>11</SP>. Thus the pins are able to tense the record sheet irrespective of shrinkage. Another embodiment is shown, Fig. 3, in which only two holes are employed. The holes and pins may be triangular, as shown in Fig. 5. In this case, by maintaining the centre line of the sheet in correct register, large tracking errors at one side of the sheet due to shrinkage, such as that shown in Fig. 6, are avoided. Figs. 8, 9 and 10 (not shown) illustrate details of the spring- loaded slides carrying the location pins, while Figs. 11 and 13 (also not shown) illustrate linkage mechanisms for moving the pins by a single control and locking means therefore, Fig. 11 being directed to a four-pin arrangement, while Fig. 13 is directed to a two-pin arrangement.
Patent GB-1249515-A (GB)
Title: Method for manufacturing enamelled metal products
IPC: C23D13/00
Filed: 1969-07-01
Abstract: 1,249,515. Enamelling metals. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. 1 July, 1969 [4 July, 1968], No. 33085/69. Heading C1M. Enamelled metal products are formed by applying a layer of enamel to the metal surface, baking the enamel, treating the enamelled surface with IN to 5N dilute acid (e.g. HC1) to plasticize the enamel, shaping the metal, and re-baking the enamel. The composition of the enamel may be such that the treatment with acid renders the enamel acid-resistant. In an example an enamel of composition (weight per cent): K 2 0 + Na 2 O .. .. 20 B 2 O 3  .. .. 15 Al 2 O 3  .. 7 SiO 2  .. .. .. 50 CaF 2 +CaO .. .. 6 Balance minor constituents, was applied electrophoretically to a metal sheet to form a layer 120 Á thick, baked at 810‹ C. for 3 minutes, cooled, treated with INHCl for 10 minutes, shaped and re-baked at 810‹ C.
Patent GB-961383-A (GB)
Title: Improvements in or relating to pressure sensitive servo-controls
IPC: G05D16/10
Filed: 1962-08-29
Abstract: 961,383. Fluid-pressure servomotor control systems. FABBRICA ITALIANA MAGNETI MARELLI S.p.A. Aug. 29, 1962 [Aug. 30, 1961], No. 33126/62. Heading G3P. [Also in Division F2] Flow between an inlet 14 and an outlet 22 is controlled by a leaky piston 10 which is urged to the closed position against packing 18 by an adjustable spring 20 and opened by the output pressure of a compressor connected to the inlet 14. The outlet 22 leads to a chamber 24 in a cylinder 26 housing a piston 28 with a rod 30 connected to a valve for unloading the compressor; the rod is hollow and has an axial bore which opens to the chamber 24 via radial ports 32 and a chamber 44, on the opposite side of pistong 28, by a calibrated orifice 36 into which projects an adjustable means 38. When the air pressure in the inlet is sufficient to raise the piston 10, the air flows into chamber 24 to lift the piston 28, from which chamber the air bleeds to atmosphere through ports 32 and orifice 36. The needle 38, which serves to clean the orifice 36, may be shaped to effect a variation in the effective area of the orifice. The needle and orifice may be associated with the piston 10 instead of the piston 28.