baber/WOPTO huggingface dataset:
Patent GB-751865-A (GB)
Title: Improvements in and relating to the dyeing of polymeric products
Inventor: NICHOLSON ALLAN EDWARD
IPC: D06P1/66
Filed: 1953-12-09
Abstract: Polymers and copolymers containing a major proportion of acrylonitrile, such as a copolymer of acrylonitrile and methyl acrylate, are dyed in a dyebath containing one or more acid dyestuffs in the presence of a long-chain cationactive quaternary ammonium salt in which the long-chain is aliphatic and contains at least 10 carbon atoms, e.g. cetyltriethylammonium p-toluene sulphonate and the trimethylammonium methyl sulphate of monostearyl m-phenylenediamine. Specification 714,530 is referred to.ALSO:Films and threads made from polymers and copolymers containing a major proportion of acrylonitrile, such as a copolymer of acrylonitrile and methyl acrylate, are dyed in a dyebath containing one or more acid dyestuffs in the presence of a longchain cation-active quaternary ammonium salt in which the long chain is aliphatic and contains at least 10 carbon atoms, e.g., cetyl triethylammonium p - toluene sulphonate and the trimethylammonium methyl sulphate of monostearyl m-phenylene diamine. The quaternary ammonium salt is preferably applied to the thread before the latter is dried after wet-spinning so that the salt is deposited in the thread on drying; alternatively, the salt may be added to the spinning or casting solution, or to the dyebath. Specification 714,530 [Group IV(a)] is referred to.
Patent GB-730950-A (GB)
Title: Improvements in bellows
IPC: F16J3/04
Filed: 1951-09-24
Abstract: 730,950. Piston packing. PETERS, M. F. Sept. 24, 1951 [March 17, 1951], No. 34286/54. Divided out of 730,858. Class 122 (1). A bellows comprises annular components 1, 3 secured together at their inner and outer peripheries, in which at least one component (3) has a greater moment of inertia than adjacent components (1) to which it is secured. The metal components 1, 3, of curved section, are secured together by metal rings 2, 2<SP>1</SP> and may be of laminated form, preferably as in Specification 730,858. If the pressure P is applied internally of the bellows, the latter is constructed such that the pressure acts on the concave surface of the component 1 and the convex surface of the member 2, as in the construction illustrated for external pressures. The stiffness of the component 3 may be increased by using material of higher modulus of elasticity.
Patent GB-1212668-A (GB)
Title: Improvements in or relating to hybrid cryogenic-mechanical refrigeration apparatus
IPC: F25D13/06
Filed: 1969-07-08
Abstract: 1,212,668. Refrigeration apparatus. ELMWOOD LIQUID PRODUCTS Inc. 8 July, 1969 [9 July, 1968], No. 34336/69. Heading F4H. Refrigeration apparatus for freezing food products, e.g. shrimp, comprises a thermally insulated chamber 10 through which the products are conveyed on one or more foraminous conveyers 13, 14 from inlet 11 to outlet 12, and the products are frozen both by a spray of cryogenic liquid, e.g. liquid air from means 30, 31 to form a superficial ice glaze thereon to seal the products against dehydration and also by the expanding gas produced from the cryogenic liquid which is circulated through the conveyers and over the product by fans 21 ... 24 which force the gas through evaporation coils 20 carrying ammonia or like fluid refrigerant in a conventional compressor refrigeration system.
Patent GB-1196273-A (GB)
Title: Low-Pressure Sodium Discharge Lamp with a Gas Filling
IPC: H01J61/74
Filed: 1967-07-26
Abstract: 1,196,273. Metal-vapour lamps. PATENT-TREUHAND - GES. FUR ELEKTRISCHE GLUHLAMPEN m.b.H. 26 July, 1967 [5 Aug., 1966], No. 34342/67. Heading H1D. The starting gas in a sodium vapour lamp is Kr + A or Kr + A + Ne at a pressure of 2-6 mm. Hg, the proportion of Kr being greater than or equal to 15% by volume of the total. With a mixture of Kr+A+Ne the combined content of Kr+A may be greater than or equal to 20% by volume of the total, and is preferably greater than or equal to 35%, with the proportion of Kr greater than or equal to 30%. Preferred mixtures are 30% Kr+70% A or 40% Kr+40% A + 20% Ne. The lamp shown comprises a serpentine discharge tube 1 having oxide coated electrodes 4 and an exhaust tube 5 supported in an outer envelope 2 having an IR reflecting coating 10 of SnO 2  interrupted at 11 to eliminate electrolysis and containing getter rings 9 to maintain a vacuum of 10<SP>-3</SP> to 10<SP>-5</SP> torr. in the outer envelope.
Patent GB-1015186-A (GB)
Title: Spark gap device
IPC: H01J17/00
Filed: 1962-09-07
Abstract: 1,015,186. Multi-gap cold cathode tubes. BENDIX CORPORATION. Sept. 7, 1962 [Oct. 2, 1961 (2)], No. 34377/62. Heading H1D. A spark-gap device having two unequal communicating spark gaps, such that the lower breakdown gap serves to initiate a discharge across the other gap, includes two aligned insulating tubes closed at their outer ends by metal end-plates which support the stems of a pair of axially aligned electrodes which are directed towards one another, the two tubes being joined at their adjacent ends by an intermediate centrally-apertured plate, and a pair of central electrodes being formed by or secured to annular surfaces disposed around the aperture on opposite faces of the intermediate plate. The glass tubes 15 and 16 are closed at their outer ends, and joined at their adjacent ends, by apertured " Kovar " (Registered Trade Mark) plates 11, 14, and 12, which support the electrode stems 20 and 32 and the tungsten electrode heads 30, 37, 41, and 44, brazed to copper members 29, 36, 40, and 42, respectively. The plate 12 has a circular contact member 51, and the envelope is provided with an exhaust tube 46 and some radioactive material 45 deposited within the tube 15, and is filled with an 80/20% hydrogen/argon mixture. In a further embodiment (Figs. 5 and 6, not shown), the central electrodes are formed by the opposite surfaces of an annular portion of reduced thickness of the central plate 12 itself, and the end electrode associated with the smaller breakdown gap is spaced from its central electrode by a projecting alumina sleeve which may be coated with a semi-conductive layer of cuprous oxide/ferric oxide mixture. Alternatively, the sleeve may be wholly composed of semi-conductive material.
Patent GB-787935-A (GB)
Title: Improvements in or relating to methods of providing a semi-conductive body of cadmium-telluride with a tellurium layer
IPC: H01L21/445
Filed: 1955-12-01
Abstract: A tellurium layer is formed on a cadmium telluride body by treating it with an oxidizing solution to superficially convert it to Te.  The strength of the oxidizing effect which determines whether converversion takes place at all and whether TeO is formed instead depends on the oxidizing substance, solution concentration and acidity, temperature, and duration of treatment. Suitable oxidizing substances are iodine, ferric chloride, hydrogen peroxide, nitric acid and cerium sulphate, preferably acidified with hydrochloric acid.  In one example of CdTe plate of P type conductivity is treated with a 0.3 per cent solution of FeCl3 at 70 DEG C. for 5 minutes, and in a further example a plate of N type CdTe crystal is treated at 40 DEG C. with a solution of 20.2 per cent HCl and 3 per cent HNO3.  The bodies thus produced may be used to form semiconductor devices (see Group XXXVI).  The Specification contains a table showing the oxidizing effect of various oxidizing solutions of different concentrations, acidities and temperatures.  Specification 773,860 is referred to.
Patent GB-303500-A (GB)
Title: Improvements in or relating to refrigerating systems
IPC: F25D23/00
Filed: 1928-11-22
Abstract: 303,500. Chicago Pneumatic Tool Co., (Assignees of Davenport, R. W.). Jan. 6, 1928, [Convention date]. Refrigerating, compression machines for. - The natural draught of air over the condenser 4 of a machine for a domestic refrigerator is augmented by a forced draught produced by a fan 8 when the temperature of the air reached e.g. 90‹ F. The circuit to the fan motor 9 is in parallel with the compressor motor 3 but is independently-controlled by a thermostat 11. Specification 249,097 is referred to.
Patent GB-635355-A (GB)
Title: Improvements in or relating to weighing machines
IPC: G01G1/26
Filed: 1946-11-20
Abstract: 635,355. Weighing-apparatus. YOUNG, F. C., REDMAN, A. M., and BAILEY, R. H. Nov. 20, 1946, No. 34459. [Class 143] The pan 19 of a weighing scale, particularly for infants, has depending feet 21 extending through openings in the top of a housing 18 enclosing the mechanism so as to rest on a table 22 within the housing; the table is supported by the outer ends of a pair of longitudinally off-set weighing levers whose inner ends are interconnected, balance weights for the levers being adjustable exteriorly of the housing. As shown, the table 22 has four depending legs by which it is supported on the weighing levers, the two rear ones 38 resting on knife-edges 37 of arms 24 of one of the weighing levers, these arms 24 being disposed at either side of the machine and connected by a transverse bridge member 23, whilst a single opposing arm 25 of the lever extends centrally and forwardly from the bridge member. Fulcrum knife-edges 34 on the arms 24 rest on bearings 33 supported in bridles 30 hung on knife-edges 28 mounted on pillars 15 upstanding from a base casting 10. The two front legs 47 of the table 22 are similarly supported on knife-edges 46 of spaced connected arms 41 of the second weighing lever, the fulcrum knife-edges 43 being on these arms 41 whilst a single opposing arm 39 extends centrally from a transverse bridge member 40 connecting the arms so as to overlie the opposing arm 25 of the first lever. The.free ends of these arms are interconnected by a strut 56 engaging knife-edges on the arms. The load is counterbalanced by two weights, a large one 77 for pounds and a small one 78 for ounces. These weights are adapted to be traversed along arms 73 and 74 extending rearwardly from the weighing lever bridge member 40 and, for this purpose, each is connected by an endless-wire 81 passing over pulleys 79, 80 and 85 or 86 with a respective adjusting dial 66, 67 provided with a finger knob and calibrated in pounds and ounces. A serrated disc 92 fast with the pounds dial is engaged by a spring-loaded ball so that whole pounds only can be set on this dial, fractions being taken account of by the ounces dial 67. The state of balance is shown by a horizontal index line on a plate 60 mounted by means of a rod 59 on the lever arm 25 and moving vertically behind index pointers at the sides of a sight aperture 82. The balance is zeroised by turning a knob 68, the threaded spindle 69 of which traverses a third counterweight 70. All three controls 66, 67 and 68 are mounted on the bridge member 40.
Patent GB-451576-A (GB)
Title: Improvements in or relating to keys for securing railway rails in their supporting chairs
IPC: E01B9/58
Filed: 1934-12-01
Abstract: 451,576. Securing railway rails in chairs. MILLS, Ltd., EXECUTORS OF J., Bredbury Steel Works, Bredbury, near Stockport, and MACBETH. A., Broadway, The Firs, Bowdon, Altrincham, Cheshire. Dec. 1, 1934, No. 34521. [Class 104 (ii)] A spring key is made by bending a steel plate to form upper and lower outwardly directed loops 4, 5 and an intermediate re-entrant bend 6, the closed end 6<a> of which is normally out of contact with the free ends 4<a>, 5<a> of the loops 4, 5, but contacts therewith when the key is subjected to excessive load to prevent collapse of the loops 4, 5. The key is made parallel, and the forward end is given a lead to enable it to be driven into position. Reference has been directed by the Comptroller to Specification 429,975.
Patent GB-1499328-A (GB)
Title: Pulse radar apparatus
IPC: G01S7/292
Filed: 1974-08-06
Abstract: 1499328 Radar DECCA Ltd 10 July 1975 [6 Aug 1974] 34522/74 Heading H4D To enable a pulse radar receiver to reject echoes shorter than or longer than the transmitted pulse by predetermined amounts, the video signal is sampled at a rate such that there are a plurality of samples within a transmitted pulse duration and it is determined if there are at least M successive and not more than N successive samples of at least a predetermined amplitude. The video signal is binomially sampled at a clock rate ¢.T. where T is the pulse duration, and the sequence of 1 or 0 sample signals fed to a register 14 having at least N+2 cells (in the present case M = 5, N = 6 and the register has 8 cells) 8 successive samples in cells 2 to 6 are thus investigated in AND gate 17 as to whether they have a 1 value (to satisfy the "at least M" requirement) whilst the samples in cells 1 and 8 (external of the group of N cells) are investigated by means of inverters 15, 16 as to whether they have a 0 value (to satisfy the "not more than N" requirement). When the two requirements are met the resulting output of gate 17 sets bi-stable 19, which is reset 6 clock periods later by the output of the gate 17 at the end of its travel along a 6 stage register 20. The output of the bi-stable 19, of a duration approximating that of the transmitted pulse, is fed to a C.R.T. display 22. The non processed (but digitized) video i.e. including echoes from extended objects-is also fed to the display, but there gives a display at a lower brightness. The radar p.r.f. and pulse duration may vary randomly for E.C.M. purposes. Different echo pulse durations may be selected by a plurality of circuits as shown and displayed in respective different colours.
Patent GB-1300795-A (GB)
Title: A process of recovering unreacted monomers and diluent solvent from an ethylene- c3 to c10 alpha olefin copolymerization mixture
Inventor: TEGGE BRUCE ROBERT
IPC: C08F6/00
Filed: 1970-07-16
Abstract: 1300795 Copolymerizing olefins ESSO RESEARCH & ENG CO 16 July 1970 [18 July 1969] 34532/70 Heading C3P In the preparation of ethylene/C 3-10  α-olefin copolymers by contacting the monomers with a catalyst in a reaction medium comprising a liquid diluent-solvent, unreacted monomers and diluent-solvent are recovered by withdrawing from said medium a reactor effluent containing catalyst unreacted monomers and a dispersion or solution of copolymer in the diluent-solvent, steam-flashing the effluent and separating an aqueous slurry of polymer free from diluentsolvent and flash overhead gas containing diluent-solvent and heavy impurities, partially condensing the flash overhead gas to form (a) a non-condensed gas containing a major proportion of the diluent-solvent and a minor proportion of the heavy impurities and (b) a condensate containing a major proportion of the heavy impurities and a minor proportion of diluent-solvent, and recovering said major proportion of diluent-solvent and minor proportion of the heavy impurities. The preferred α-olefin is propylene, and non-conjugated diolefins such as hexadiene-1,4, octadiene-1,6, 5- methyl - hexadiene - 1,4, 3,7 - dimethyloctadiene - 1,6 3,7 - dimethyloctadiene - 1,7, cyclohexadiene - 1,4, cyclooctadiene - 1,5, cyclododecadiene - 1,5, tetrahydroindene, dicyclopentadiene and alkylene and alkylidene norbornenes may also be present. The polymerization may be effected batchwise or continuously in toluene, heptane, pentane, hexane or tetrachloroethylene in the presence of a catalyst comprising a transition metal halide and a Group I-III organometallic compound, and the product deactivated with an alcohol, deashed with aqueous hydrochloric acid and steam-flashed through a nozzle or pressure release valve. Partial condensation of overhead gas may be effected by indirect heat exchange or directly by contact with a solvent-diluent immiscible, preferably aqueous, cooling liquid. An example describes the copolymerization of ethylene, propylene and 5-ethylidene-2-norbornene in hexane in the presence of a vanadium tetrachloride/diethyl aluminium chloride catalyst, and apparatus suitable for carrying out the process is described and illustrated.
Patent GB-894049-A (GB)
Title: Method of preparing 10-(1-substituted-3-pyrrolidylmethyl) phenothiazines
IPC: C07D417/06
Filed: 1959-10-13
Abstract: The invention comprises compounds of the general formula <FORM:0894049/IV (b)/1> (wherein X represents a lower (C1-6) alkoxy group and R an alkyl or alkenyl group of up to 6 carbon atoms or a phenylalkyl group of up to 8 carbon atoms) and their non-toxic acid addition and quaternary ammonium salts, and the preparation thereof by reacting a correspondingly 1-substituted-3-pyrrolidylmethyl halide with a 2-lower-alkoxy-phenthiazine.  The products are useful as antihistaminic, antispasmodic, antiemetic and tranquilizing agents, for which purposes the free bases, their addition salts with inorganic or organic acids, or their quaternary ammonium salts, may be administered orally in the form of tablets, capsules or elixirs.
Patent GB-843494-A (GB)
Title: Improvements in or relating to constructional toy building outfits
IPC: A63H33/10
Filed: 1956-11-13
Abstract: 843,494. Toy building kits. HALSAM PRODUCTS CO. Nov. 13, 1956 [June 18, 1956], No. 34655/56. Class 132(3). A constructional toy building outfit comprises interlocking column, wall and floor elements 7, 8 and 9 wherein the column elements can be connected together end to end by a stud 15, Fig. 7, in one being inserted in a socket at the adjacent end of another, each column element having a vertical slot 13 in each face into which necked ribs 12, Figs. 2 and 6, at the vertical edges of the wall elements are inserted. As shown, the column studs are star shaped and the floor elements have corresponding shaped openings 22, Fig. 5, which permit the floor elements to be fitted over and engage the studs and be sandwiched between the adjacent ends of two column elements, the column studs being longer than the column sockets to provide gaps between adjacent column elements to accommodate the floor. These gaps also simulate mortar joints. The height of each column element is a simple fraction of the height of each wall element and the wall elements have spacing pads 26 whose thickness equals that of a floor so that, when assembled, the columns and walls are maintained in horizontal registry. The floor is formed from a sheet having fracture lines to permit a floor of a desired shape and size to be broken from the sheet. The wall elements are in the form of doors 11, Fig. 2, windows 10 and balustrades 30 and there are stair units which interconnect with the columns. A finishing cap for the top of a column has a hole 32 into which a flag pole 33 may be inserted and, to permit one story to be set back from the one below, column elements as shown in Fig. 10 are provided. Column elements having ribs 35, Fig. 12, and column elements which permit walls to be interlocked at 45 degrees are also described. The structural elements may be die cast from thermosetting plastic such as polystyrene.
Patent GB-1276697-A (GB)
Title: Electro-photographic apparatus
Inventor: SASAKI TOSHIHARU
IPC: G03G15/26
Filed: 1969-07-09
Abstract: 1276697 Electro photographic apparatus MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 9 July 1969 [9 July 1968(4) 23 July 1968 28 Aug 1968 19 Dec 1968] 34695/69 Heading G2H An apparatus for producing an image of an original 6 comprises charging means 28, an optical system 15, 16 for producing a latent electrostatic image on a portion of transparent photo-conductive film 18, a device 31 for severing the exposed portion, and means for feeding the severed portion through liquid developer 39 and a liquid fixing solution 41 to a delivery outlet 50 or 54. The film 18 has a support 24, Fig.2, e.g. of cellulose acetate coated with cuprous iodide to form a conductive layer 25, an adhesive layer 26 and a transparent photo-conductive layer 27 of poly-N-vinyl carbazole. The layer 27 is imagewise exposed after charging by the device 28 having electrodes 72 and tungsten wires 73 supplied with a high voltage. The device 28 is reciprocable along rails 74 by crank (80), Fig. 4 (not shown). The device 31 comprises an anvil 140, Fig.7, and a cutter 141 having a knife edge 145 and a pin 143 biased to the left by a spring 144 and moved to the right by a cam actuated bell-crank lever (147), Fig.5 (not shown). The cut portion 33, Fig.9, is fed by rollers 32a, 32b to a bath 40 having a guide-plate 160 below the level of developer 39 comprising finely divided particles in solution. The developed image is fixed by passage through a bath 42 of volalite solvent and resinous material and by a dryer 165 having a heated wire 166. A pivoted switch 44, Fig.1, controls the delivery of the portion 33 to the outlet 54 or 50 depending on whether the portion is mounted on an aperture record card 53 or delivered unmounted respectively. The portion is mounted on the card 53 as described with reference to Fig.10 (not shown). Alternatively, the portion 33 may be fitted in a transparent jacketed record card (300) Fig.18 (not shown).
Patent GB-1191544-A (GB)
Title: N,N'-Diglycidyl Compounds, process for their Manufacture and their use
IPC: C08G59/10
Filed: 1968-07-19
Abstract: 1,191,544. N,N<SP>1</SP>-Diglycidyl compounds. CIBA Ltd. 19 July, 1968 [24 July, 1967; 22 Sept., 1967], No. 34697/68. Heading C2C. [Also in Division C3] Novel N,N<SP>1</SP>-diglycidyl compounds of formula wherein R is an aliphatic, cycloaliphatic or araliphatic residue and R 1 , R 2 , R 3  and R 4  each denote a hydrogen atom or an aliphatic or cycloaliphatic hydrocarbon residue, or wherein R 1  and R 2  and/or R 3  and R 4  together form a divalent aliphatic or cycloaliphatic hydrocarbon residue, preferably a tetramethylene or pentamethylene residue, are prepared by converting compounds of formula wherein X is a group convertible into a 1,2- epoxyethyl residue. X may represent a vicinal hydroxyhalogenethyl residue and is converted into 1,2-epoxyethyl residues by splitting off hydrogen halide with a strong alkali. X may also represent a vinyl residue which may be converted into a 1,2-epoxyethyl residue by reaction with a per-acid or hydrogen peroxide.
Patent GB-1240554-A (GB)
Title: Tractor-trailer combinations comprising anti-jack-knife devices
IPC: B62D53/08
Filed: 1968-07-22
Abstract: 1,240,554. Anti-jack-knife devices. ISUZU MOTORS Ltd., and FUJI HEAVY INDUSTRY Ltd. 22 July, 1968 [20 July, 1967], No. 34794/68. Heading B7T. [Also in Division F2] An anti-jack.knife device on a tractor-trailer combination inclludes a couping pin 1 secured to the trailer through a support plate 6, cylinders 5, bolts 7, and a sliding plate 4, a disc 2 rotatable about the pin 1 and having on its lower surface a tooth 3 engageable with the fifth-wheel coupling of the tractor, and braking means comprising a pivoted arm 10 which presses friction elements 8 on to the disc 2 when pressure in an air chamber 11, connected to the trailer brake system, is increased. In a modification, Figs. 3 and 4 (not shown) the disc is replaced by a drum (17) braked by a pair of cam-actuated brake shoes. In another modification, Fig. 9, the braking means comprises a rotary lever 58 coupled to a fluid-filled pistoncylinder damper 54, 55, the ends of the cylinder normally communicating via a pipe 56 which is closed by solenoid valves 57 in response to a pressure rise in a trailer brake line 61. In a pneumatic brake system, Fig. 7, air pipes 33, 34 connect a brake pedal and a compressed air source respectively to a relay valve 31 which communicates with an air reservoir 32. When the pedal is depressed the pressure increase in pipe 33 operates valve 31 to supply air from the reservoir 32 to brake-operating chambers 35. The increased pressure is also communicated through a pipe 39 to a double acting check valve 38, which operates a relay valve 37 supplying compressed air from the reservoir 32 to an anti-jack-knife device 41. When the pedal is released the air in chambers 35 and the device 41 is discharged through valve 31 and a port 47. The device 41 may be operated independently of the trailer brakes by means of a switch controlled solenoid valve 42 which when operated supplies air from the reservoir 32 to the device 41 via valve 38. When the switch is turned off, exhaust ports 47 and 48 are opened.