baber/WOPTO huggingface dataset:
Patent GB-763422-A (GB)
Title: Method and machine for performing work on glass ampuls
Inventor: STEYN GERARD KAROL VAN
IPC: C03B23/18
Filed: 1954-12-13
Abstract: 763,422. Glass processing. OWENS-ILLINOIS GLASS CO. Dec. 13, 1954, No. 35968/54. Class 56 In the processing of glass ampoules the ampoules are advanced by finger chains 37, 38 along an inclined rail 35 between base and bell-end rails 39, 40 and they are rotated about their own axes by contact with the upper lap of a driven chain 36. The restricted neck portions 17 are cooled by air jets from pipes 98 and a ring of ceramic or other colouring matter is then applied to the necks by causing them to contact with a rotating disc W which dips into a reservoir 105. At this time the ampoules are raised somewhat, by 'traversing raised sections 124, 125 attached to the rails 35, 39, into contact with the lower lap of a driven endless belt 115 which holds them in yielding contact with the disc W. The ampoules then pass under another driven endless belt 135 which holds them in yielding contact with a rotating neck - scoring disc S, the rails 35 and 39 being provided with arcuate sections 126, 127 to raise the ampoules somewhat. The scored end is then removed by a tool R and the rough edge is fire polished, the ampoules then passing into the annealing lehr L wherein the colour band is fired.
Patent GB-902728-A (GB)
Title: Water-soluble quaternary ammonium salts of monoazo-dyestuffs and process for their manufacture
IPC: C09B29/00
Filed: 1960-10-20
Abstract: 3-Amino - 4 - methylbenzoylmethyl-trimethyl-ammonium chloride is prepared by quaternating 1-acetylamino-2-methyl-5-(a -chloro)-acetophenone with trimethylamine and hydrolysing the acetylamino group with hydrochloric acid.  4 - Aminobenzoylmethyl-trimethyl-ammonium chloride and 4-aminobenzoylmethyl-dimethyl-b -hydroxyethylammonium chloride are similarly prepared.  1-cyanoethyl-2: 6-dimethylindoline is prepared by reducing 2:6-dimethyl-indole with tin and hydrochloric acid and treating the resultant 2:6 - dimethyl - dihydroindole with acrylonitrile under pressure.  Specification 857,391 is referred to.ALSO:The invention comprises water-soluble monoazo dyes which are free from sulphonic acid groups and are of formula: - <FORM:0902728/IV (b)/1> wherein A is a benzene residue, "alk" is an alkylene group, R1, R2 and R3 each represent an alkyl or aralkyl group or may form with the N atom a heterocyclic ring, B is the residue of an indole, indoline, hexahydrocarbazole, aminopyrazole or tetrahydroquinoline coupling component and X represents an anion. They are prepared (a) by diazotising an amine of formula <FORM:0902728/IV (b)/2> and coupling with an appropriate heterocyclic compound (b) by reacting an azo dye of formula Hal-alk-CO-A-N = N-B wherein Hal is a halogen atom with an appropriate tertiary amine or (c) by alkylating a monoazo dye of formula: -  <FORM:0902728/IV (b)/3> The dyes may be used to dye tanned cellulose fibres, silk, hair, leather and in particular polyacrylonitrile or polyvinylidene cyanide fibres in yellow and red shades.  In examples: (1) 4-amino-benzoylmethyl-trimethylammonium chloride is diazotised and the diazo compound coupled with 2-methylindole in acetic acid solution; (2) the same dye is prepared by treating the dye <FORM:0902728/IV (b)/4> in acetone solution with trimethylamine. Further dyes are specified in examples.  Specification 857,391 is referred to.
Patent GB-522692-A (GB)
Title: Improvements in and relating to electronic discharge tubes
IPC: H01J17/04
Filed: 1938-12-13
Abstract: 522,692. Discharge apparatus. BERGHAUS, B. Dec. 13, 1938, No. 36283. Convention date, Dec. 24, 1937. [Class 39 (i)] In gas-filled electric discharge tubes of the kind in which the source of electrons is a glow discharge between the cathode and an auxiliary anode, and the grid is placed so close to the main anode that the glow discharge does not penetrate to the space between them, the insulation of the leading-in connections for the electrodes is protected from the glow discharge by separating it from the glow discharge space by a gap which is sufficiently long and narrow to suppress the glow discharge therein. In the arrangement shown diagrammatically in Fig. 1, the anode 4 is led into the envelope 1, which may be of metal or non-metallic material, by an insulator 4b and tubular screening element 4a. The cathode 2 and its lead-in 3 are similarly insulated and screened at 2a, 2b. The grid 5 completely surrounds the anode, and in a modification is partly replaced by the element 4a. The cathode may be concave in shape and may be extended to enclose the anode. The gas filling may be helium, argon, neon, krypton or xenon, at a pressure between 5 and .001, preferably 1 to .1 mm. of mercury. For high loading, the cathode is preferably made of a refractory metal such as tungsten, molybdenum or tantalum, but for smaller loads may be of aluminium, magnesium, copper, iron, or of an alloy such as chromium and iron. The anode may be made of similar materials ; and the grid is preferably made of a good heat conductor such as silver, copper or aluminium. Fig. 12 shows an arrangement in which envelope is formed by the cathode 18, provided with a cooling jacket 19 having inlet and outlet openings 20, 21 for the cooling fluid. The anode is a hollow member 26 to which cooling fluid is supplied by pipe connections 27, 28. The auxiliary anode 30 and a control grid 29 are carried by solid tubular parts 31, forming between themselves and the anode and cathode narrow spaces by which the insulation 32, 33, 34 is protected from the discharge. The control grid 29 is omitted in another arrangement. Fig. 13 shows an arrangement in which the cathode and the anode in Fig. 12 are interchanged. The auxiliary anode is an annular member 29 between which and the cathode 26 the glow discharge takes place. The grid member 30, arranged close to the anode 18 is carried by a second annular member 30a. The Specification as open to inspection under Sect. 91 describes also an arrangement in which the lead-in for the cathode is a metal cap fused to a re-entrant tubular member of a glass envelope. The seal is closely surrounded by a metal sleeve acting as a screen, and the re-entrant tubular member may be closed at its outer end, and be supplied with cooling fluid. In another arrangement, a tubular cathode with cooling fluid supplied and a closely spaced shielding member, are mounted in a metal envelope. This subject-matter does not appear in the Specification as accepted.
Patent GB-1473054-A (GB)
Title: Detection of ions by mass spectrometry
IPC: G21K1/087
Filed: 1975-09-05
Abstract: 1473054 Mass spectrometers BALZERS PATENT UND BETEILIGUNGS AG 5 Sept 1975 [30 Sept 1974] 36557/75 Heading H1D To eliminate undesired particles from an ion beam in a mass spectrometer, an asymmetric electrostatic lens, i.e. one which forms a non- axial image of an axial object, is interposed in the beam path. In Fig. la ions emerging from an object 8 pass through a non-axial entrance operture 2 in a first electrode 3, between halfcylindrical deflecting electrodes 4, 5 and form a cross-over at an axial exit aperture 6 in a further electrode 7. In Fig. 2 (not shown) the aperture 2 is in a conical end of electrode 3. In Fig. 3 (not shown) two pairs of half-cylindrical electrodes (12, 13, 14, 15) are provided and in Fig. 4 (not shown) two complementary asymmetric lenses are used in series with axial entrance and exit apertures but with a non-axial intermediate cross-over.
Patent GB-412577-A (GB)
Title: Method and apparatus for the electrodeposition of metal
IPC: C25D7/06
Filed: 1932-12-24
Abstract: 412,577. Winding bobbins. TENNANT, W. J., 111, Hatton Garden, London.-(Copperweld Steel Co. ; Glassport, Pennsylvania, U.S.A.) Dec. 24, 1932, No. 36596. [Class 120 (ii).] Apparatus for the electrodeposition of metal on a wire or core comprises bobbins for the supply and reception of the core and means for maintaining it under considerable tension (which may approach the yield point) and for rotating it about its axis during its passage through the depositing bath. In the apparatus shown in Fig. 3 the core 6 is unwound from a supply drum 2 and passes between rollers 40, 41 and round a snubbing wheel 43 in the reverse direction. A wobbler ring 45 is keyed to rotate with the wheel 43, being maintained by a guide 50 in contact with the flange 51 and pressed down by a wedge 49 at the opposite point to maintain the core on leaving in alignment with guiderolls 44. The drum is mounted in a frame 13 which is rotated by a wheel 14. To permit development of tension in the core the wheel 43 is engaged by brake-blocks 52 adjusted by screws 61. The winding apparatus for the thickened core is mounted on a frame 11, Fig. 8, which is rotated by a wheel 12 at the same speed as the frame 13 at the supply end. The core 6 passes over a drum 70 and a wheel 71 and is received on a reel 10. The reel 10 is driven through gearing by a motor 72 connected to contact rings 94. The core is guided on the drum 10 by fingers 83 on a carrier mounted on a screw 85 having forward and return threads, the screw being driven by a chain from the drum 10. To prevent release of tension when the motor is stopped the frame 11 is provided with a head 98, Fig. 9, comprising spring-pressed jaws 101 mounted in converging guides so as to permit the core to move to the right but to grip it when not so moving. Specifications 368,412, 412,563, 412,582, [all in Group XXXVI], are referred to.
Patent GB-416769-A (GB)
Title: Improvements in vapour generators intended particularly for mercury
IPC: F22B3/02
Filed: 1933-12-29
Abstract: 416,769. Mercury-vapour generators. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Nerad, A. J. ; 1061, Glenwood Boulevard, Schenectady, New York, U.S.A.) Dec. 29, 1933, No. 36611. Convention date, Dec. 29, 1932. [Class 122 (iii).] A vapour generator, intended particularly for mercury, comprises walls 13, 14, a drum 10, and a plurality of heating-units 17, 18, 19 located at different heights, each unit including a header. The drum 10 is provided with heating tubes of the kind described in Specification 319,219, [Class 122 (iii)], a filler block 12, and a baffle 24. The upper unit 17 is located below the level of the drum 10, and the liquid supply thereto, by a conduit 23 connected to the baffle plate 24 in the drum, ceases when the level therein falls below the level existing under cold conditions. The header 21 is connected to the header 20 by a pipe 34 at a point above the cold liquid level therein ; similarly, the header 22 is connected to the header 21. Heating elements 25, 33, 37 are arranged within the furnace, and are connected by pipes 26 to the drums above the liquid surfaces therein, and by pipes to down-tubes 27, 32, 36 connected to the lower parts of the headers. The vapour from the headers is conducted to the drum by a pipe 30 connected to the headers by branches 31, 35 as shown. In a modification, shown in Fig. 2, the header 46 has a baffle 50 to prevent the upstream liquid from the element 48 interfering with the liquid flowing to the down tube 47. The liquid-supply conduit 51 has a seal 52, and the liquid level in the drum may rise above the cold liquid level. The vapour branch 53 has a number of branches, which end at different levels above the cold liquid level in the header 46. A rise in liquid level cuts off a number of branches, which results in an increase of pressure in the header 46, and prevents the entry of liquid from the drum 10. In a modification, the down-flow liquid pipe between the drum and a header enters the drum below the cold liquid level, and has a bend above this level. In another modification, the supply pipe to the header is provided with a spring-pressed, non-return valve.
Patent GB-777913-A (GB)
Title: Improvements relating to asbestos based electrically insulating material
IPC: H01B3/06
Filed: 1955-12-22
Abstract: 777,913. Electric insulating paper etc.; laminates ; impregnating-compositions for electric insulation. GENERAL ELECTRIC CO. Dec. 22, 1955 [Jan. 24, 1955], No. 36733/55. Drawings to Specification. Classes 96 and 140. Electric insulating paper, laminated plates, or moulded structures, &c., are made from asbestos which may contain minor quantities of bentonite, or glass or cellulosic fibres are impregnated with a phosphoric acid compound, e.g. orthophosphoric acid, or Al x (H 3-x PO 34 ) ' where x is from 1.3 to 1.7 and heated to 600‹ to 1000‹ C., e.g. for 1 to 15 hours to form products of low power factor and dielectric constant, and of high dielectric strength. The asbestos may have an iron content of 6 per cent, or may be purified to an iron content of less than ¢ per cent. Highly viscous aluminium phosphate solutions may be used for bonding the laminates. Alternatively, orthophosphoric acid and asbestos fibres may be moulded and fired. Specification 753,610 is referred to.
Patent GB-1405040-A (GB)
Title: Process and apparatus for the catalytic oxidation of propylene
IPC: C07C45/35
Filed: 1973-08-02
Abstract: 1405040 Catalytic apparatus HOECHST AG 2 Aug 1973 [7 Aug 1972] 36753/73 Heading B1F [Also in Division C2] Acrolein and/or acrylic acid are obtained by the vapour phase oxidisation of propylene with O 2 , or a mixture comprising O 2  and one or more gases inert under the reaction conditions, in the presence of steam and a fixed bed catalyst at 320-450‹C, the hot reaction gases being cooled in a heat exchanger located directly downstream of the reaction zone to 200-300‹C using water at a temperature at least 25‹C above the dew point of the reaction gas mixture (generally between 35‹ and 80‹C) and then recovering the desired product(s); the process being carried out with an apparatus (see Figure) comprising an upper reaction zone bounded by a generally cylindrical casing receiving a plurality of individual tubular structures 2 adapted to have a fixed, bed catalyst placed therein, the said tubular structures being bundled together and spaced apart from each other; two perforated plates sealing the upper end and lower end, respectively, of the generally cylindrical casing, clampingly receiving the individual tubular structures, enabling the spacing therebetween to be maintained and being disposed at the terminal surface areas of the tubular structures; the said tubular structures being adapted to be contacted by a salt melt permitting the said tubular structures to be heated to reaction temperatures, upon the salt melt being introduced into the space left between the individual tubular structures; a lower heat exchange zone, of similar design to the reaction zone, receiving a similar number of empty, water-coolable tubular structures; the two bundles of individual tubular structures accommodated in the reaction zone and heat exchanger zone, respectively, being flanged together, so as to open directly into each other, by means of the two perforated plates disposed at their respective terminal surface areas.
Patent GB-1172637-A (GB)
Title: A Polymerizable, Flattened, Tubular Open-Ended Member
Inventor: SKOGGARD BRUNO BENGT
IPC: F16L9/12
Filed: 1968-08-01
Abstract: 1,172,637. Plastics pipes. AMERICAN CYANAMID CO. 1 Aug., 1968 [2 Aug., 1967], No. 36830/68. Heading F2P. A flexible hose which is flattened for storage but which may be distended by pressure and which includes a settable plastics to fix it in the open form when heated, comprises an inner inflatable tube 1 surrounded by a thermosetting layer 2 and a filamentary reinforcing material 3 impregnated with a thermosetting plastics and having crossing threads capable of withstanding circumferential and axial loading, and an outer plastics wrapping 5. The inflatable tube 1 may be made of polyethylene or a linear polyester resin which is distended to act as a mandrel for the outer layers, and then flattened to await re-expansion. The wrapping 2 may be of polyester film which may be coated on both sides with polyethylene film or adhesive, or it may be of impregnated paper. In addition or instead, there may be longitudinal overlapping layers (Figs. 2 and 3, not shown) of synthetic fibre paper impregnated with thermosetting resin, followed by overlapping layers 3, of helically wound polyester or resin film faced with polyethylene film. Around this, are oppositely wound 2 or more layers 4 of filamentary reinforcing material impregnated with thermosetting resin, followed by an outer wrapping 5 of cellulose or polyethylene film. The fibrous layers 4 may be of glass fibre tape impregnated with unsaturated polyester resin, and up to five layers may be used, the middle one being arranged longitudinally. There may be a layer of thermosetting resin containing synthetic fibre paper between the inner tube and the polyethylene wrapping.
Patent GB-881373-A (GB)
Title: Improvements relating to single-stage radial flow compressors
IPC: F04D29/62
Filed: 1958-11-18
Abstract: 881,373. Centrifugal compressors. SULZER FRERES S.A. Nov. 18. 1958 [Dec. 13, 1957], No. 37118/58. Class 110 (1). A single-stage radial-flow compressor operating with suction at one end only and having an overhung impeller comprises a self-contained structural unit 8, Fig. 1, including the impeller 2, impeller shaft 3, and a common bearing housing 12 containing the shaft bearings 7 and a shaft seal 14, the unit being inserted into a cylindrical chamber 4 of the compressor housing 1 from the suction end 22. The suction end has an inlet sleeve 24 of approximately the same diameter as the inlet diameter of the impeller. The sleeve is positioned in an aperture in the housing of sufficient diameter to permit extraction of the bearing housing 12. The housing 12 also contains lubricant chambers 13. The seal 14 seals the bearings from the diffuser 31. The unit 8 is secured at its drive end 9 by a screw connection 10, to the compressor housing 1, while the other end 11 is free to move axially to accommodate differential thermal expansions. Removal of the unit 8 is effected by removing an inlet passage 26 and the inlet sleeve 24, and releasing the screw connection 10, whereupon the unit 8 can be withdrawn from the chamber 4 through the suction end 22. The impeller shaft 3 is connected by an axially insertable toothed coupling 27 to the driving shaft 28 of a power unit (not shown). When the unit 8 is removed an inlet 17 and outlet 18 for the lubricant and coolant remain connected to the chamber 4 so that no assembly work is necessary after the unit 8 has been re-inserted. Ribs 19 split the chamber 4 into two pockets 20, 21 for lubricant supply and discharge.
Patent GB-772374-A (GB)
Title: Blood test
IPC: G01N31/22
Filed: 1954-12-23
Abstract: The diagnostic composition for detecting occult blood in fluids described in Specificaton 708,996 is improved by the addition of a water insoluble material which contrasts in colour with the colour formed by combination of the colour responsive compound in the composition and blood.  The water insoluble material is preferably a red, orange or yellow dye or pigment.
Patent GB-780044-A (GB)
Title: Improvements in or relating to reflex klystrons
IPC: H01J25/24
Filed: 1954-12-23
Abstract: 780,044. Velocity modulated tubes. SIEMENS & HALSKE AKT.-GES. Dec. 23, 1954 [Dec. 23, 1953], No. 37264/54. Class 39(1). In a reflex klystron having a cavity resonator the ratio of the surface areas of the reflector and the cathode is greater than twice the square of the ratio of the resonator reflector and cathode resonator spacings. This reduces the space charge in the resonator-reflector space. In one form, Fig. 1 (not shown) electrons from a large area concave cathode converge to a minimum diameter at the gun anode and then begins to diverge as it passes through concave resonator grids and continues to diverge to the reflector, the divergence being due to space charge repulsion. In a modification, Fig. 2, a metal capillary cathode or similar concentrated source of electrons is provided. To avoid the formation of a virtual cathode in the reflector space a = 1/#2k, where a = retarding path length and k=accelerating path length.
Patent GB-1520634-A (GB)
Title: Digital encoding system
IPC: H04N11/04
Filed: 1974-08-23
Abstract: 1520634 Digitally encoded colour television POST OFFICE 18 Aug 1975 [23 Aug 1974] 37280/74 Addition to 1344312 Heading H4F PAL colour television signal is digitally encoded by sampling 2 the signal at three times the subcarrier frequency in phase quadrature (or in phase) with the datum phase about which the PAL phase modulation is switched in successive lines, converting the sampled values to digital form 3, and subtracting 4 from each sample value (e.g. S1) a combination (e.g. S2 + S8 - S9) of previously sampled values. The combination comprises the value at a preceding sampling instant S 2  and the difference between the values at two sampling instants one line earlier which are spaced apart by the same number of sampling intervals as the present (S1) and preceding (S2) sampling instants, and is such that the sub-carrier components, if unmodulated, would cancel each other in the resulting output S1-S2-(S8-S9). As shown the combination is derived by passing the digital signal to an adder 6 whose output is passed directly and via a one sample interval delay 7 to a subtractor 8 whose output is fed via on 852 stage shift register 10 (i.e. delay of approximately one line) to an adder 9 together with the output of delay 7. The output of adder 9 is fed to subtractor 4 and also back to adder 6 so that the encoding is cumulative. The output from register 10 fed to adder 9 is cyclically switched 14 between the last three stages thereof so that signals according to the three algorithms are sequentially produced. Commutating switch 14 is driven by a motor 16 which is controlled by an output of adder 6 and only commutates when a colour burst is detected. Decoding of the transmitted encoded signal may be effected in a manner similar to that described in Specification 1,344,312, the decoder comprising components 6-14 and 16 of Fig. 3 with the encoded signals applied to adder 6 and an output being obtained from adder 6.
Patent GB-367961-A (GB)
Title: Improvements in the manufacture of tubes from paper, cardboard and the like materials
IPC: B31C1/00
Filed: 1930-12-16
Abstract: 367,961. Cutting cardboard tubes. PA TON, G. C. and PATON, J. S., Binns Road, Old Swan, Liverpool. Dec. 16, 1930, No. 37863. [Class 31 (i).] Cutting cylinders transversely and obliquely.-In a machine for cutting cardboard tubes into lengths, a mandrel 8 and a cam drum 14 are rotated from pulleys. The cam reciprocates, along guides 7, a cradle formed of connected crossheads 38, 12. The blanks are fed to the cradle by escapement fingers 41, 43. In operation, on release of the fingers 41 by engagement of parts 46, 47, the tube drops into the cradle. A bowl 22 is then in the groove 15c of the cam 14. The cradle is reciprocated to place the tube on the mandrel and rotary knives 27 are swung about a shaft 29 to sever the tube by a cam 32. A stop 54 engages and positions an ejector 37 and the severed tube is stripped from the mandrel on the backward movement of the cradle. In a modification a pair of mandrels are used. Geared fingers 23 on the cam track retain the bowl in the groove.