baber/WOPTO huggingface dataset:
Patent GB-627178-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J21/02
Filed: 1947-07-28
Abstract: 627,178. Electron discharge apparatus. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 28, 1947, No. 20278. Convention date, Sept. 27, 1941. [Class 39 (i)] A high-vacuum cold cathode field emission tube capable of passing a very heavy current comprises an anode 6 and a two-part cathode consisting of a hollow member 7 surrounding a rod-like member 8 which projects through a small hole in the flat end of member 7. An operating circuit is shown by which a high voltage is first impressed across cathode members 7 and 8, causing a field emission of electrons forming an arc across the space between them, which is smaller than the cathode anode spacing between the flat ends of electrodes 6 and 7. This arc forms an electronemitting source which initiates and sustains the main discharge to anode 6, which is substantially independent of any action due to residual gas, although mercury vapour may be present. In a modified arrangement, Fig. 4 (not shown), the rod- 8 also extends through a small hole in electrode 6, and either electrode 6 or 7 may operate as anode or cathode. The Specification as open to inspection under Sect. 91 also shows various further modifications, Figs. 5-13 (Cancelled, not shown), in which the electrodes take the form of parallel wires, or triangular or pyramidal members, or comprise one or more anode wires enclosed by block-shaped cathode members having sharp edges to facilitate the initial discharge. This subject-matter does not appear in the Specification as accepted.
Patent GB-1202946-A (GB)
Title: Improvements in and relating to switches
Inventor: SMITH FREDERICK LEWIS
IPC: H01H19/64
Filed: 1968-04-30
Abstract: 1,202,946. Counter read-out. MAIDSTONE ELECTRONICS Ltd. 30 April, 1969 [30 April, 1968], No. 20408/68. Heading G4H. [Also in Division H1] A switch comprises a mechanical counter including a plurality of incrementally steppable discs or wheels 16a, 16b, 16c, 16d, one for each significant digit of the counter, each disc or wheel being arranged to step the next succeeding disc or wheel one position upon full rotation, each disc or wheel being arranged to carry e contact 22 to rotate therewith and having a member 23 of insulating material spaced from and positioned around its periphery which carries a further contact 27 for each of the incremental positions of its associated disc or wheel, the further contacts 27 being engaged sequentially by contact 22 as it rotates. The first wheel 16a is driven from an input gearwheel 15 or alternatively from a ratchet arrangement (not shown). Each wheel has on its input side (right hand side) twenty radially extending teeth enmeshed with transfer pinions 17a, 17b, 17c, and on its output side two teeth which enmesh with pinions 17a, 17b, 17c once per revolution so that one revolution of a wheel moves the following wheel on by one tenth of a revolution. Each wheel carries one spring loaded carbon brush 22. There is one member 23 for each wheel (only one shown) and each member 23 is stationary, annular and formed of thermosetting resin with ten brass contacts 27 moulded therein. Brushes 22 wipe contacts 27 as the wheels rotate. In use shaft 13 on which the wheels are mounted is connected to earth and contacts 27 are connected to a decade display device e.g. to the pins of digitrons or decatrons via a voltage source. The counter shown counts up and down but it is stated that it could be replaced by a counter operating in a single direction and incorporating a reset device.
Patent GB-1107469-A (GB)
Title: Motion picture projector
IPC: G03B21/32
Filed: 1965-05-14
Abstract: 1,107,469. Cine projectors. EASTMAN KODAK CO. May 14, 1965 [May 14, 1964], No. 20415/65. Heading G2E. Cover 34 is hinged to housing 10 of a cine projector and is opened to the position shown for projection of filmstrip 14 which passes from supply reel 15 to take-up reel 17 via lamp housing 12, the reels being driven in opposite directions 21, 22 through slipping clutches 23, 24 to provide film tension. Reel spindles 19, 20 have pulleys  25, 26 driven by belt 28, pin hinge 35 taking up slackness in the belt when the cover is closed.
Patent GB-1123945-A (GB)
Title: Process for the manufacture of aminoanthraquinones
IPC: C09B1/32
Filed: 1967-05-03
Abstract: Anthraquinones containing a primary amino group are produced by heating an anthraquinone containing a secondary or tertiary alkyl, aralkyl or cycloalkylamino group or a cyclic amino group in an organic solvent at above 100 DEG  C.  In a modification, an anthraquinone containing a reactive group or atom, e.g. nitro, hydroxy, alkoxy, sulpho or halogen, is heated in an organic solvent at above 100 DEG  C. with a primary or secondary aliphatic, cycloaliphatic or araliphatic amine or a secondary cyclic amine. An acid binding agent or oxidizing agent may be present and the reaction may be conducted under elevated pressure.  Suitable solvents are nitrobenzene, trichlorobenzene, methylnaphthalene or an excess of the amine used as the reaction component.
Patent GB-1003013-A (GB)
Title: Heat exchange device
Inventor: DRAKE CHARLES EDWARD
IPC: F28F13/06
Filed: 1962-05-28
Abstract: 1,003,013. Heat exchanger tubes. PATTERSON KELLY CO. Inc. May 28, 1962, No. 20494/62. Heading F4S. A heat exchanger tube 10 is provided with an internal fin device comprising integral axially extending fins 14 extending radially from a common centre 15 and each terminating in an enlarged portion 16, the fin device being force-fitted into the tube 10 so that the portions 16 and the parts of the tube which they contact are elastically deformed. The fins 14 are of generally constant thickness and may have longitudinal serrations. The tube and fin device are formed separately, e.g. by drawing, extrusion, or casting, and may be of metal or other suitable material, not necessarily the same for both components.
Patent GB-788952-A (GB)
Title: Improvements in or relating to welding electrodes
Inventor: CLARKE EDWARD JOHN
IPC: B23K35/02
Filed: 1955-07-15
Abstract: 788,952. Welding by fusion. MUREX WELDING PROCESSES, Ltd. July 25, 1956 July 15, 1955], No. 20509/55. Class 83 (4). A continuous arc-welding electrode has a wire wrapping in electrical contact with a central core wire and a coating comprising an inner layer of powdered metal and an outer layer of flux, at least a portion of the wrapping being exposed to provide electric contact. The wrapping may consist of two or more layers of wire windings, adjacent layers being oppositey wound. The electrode shown is similar to that described in Specification 734,219. Powdered metal mixed with a binder fills the gaps 3 in an inner winding of a single wire 2 surrounding the core 1. Flux 5 fills the gaps in an outer winding of two or more wires 4 which project above the flux at the points 6 where they cross the inner wire 2. Specification 729,337 also is referred to.
Patent GB-1198481-A (GB)
Title: Methine Dyes and Methods for their Preparation
Inventor: DEPOORTER HENRI
IPC: C09B23/16
Filed: 1967-05-03
Abstract: 1,198,481. Methine dyes. GEVAERTAGFA N.V. 29 April, 1968 [3 May, 1967], No. 20610/67. Heading C4P. The invention relates to dyes of the formulµ wherein m is 0 or 1, A is COAT, COOR 1  or -CONR 1 R 2  wherein R 1  and R 2  are alkyl or substituted alkyl or aryl, R 3  and R 4  are alkyl or aryl, R is alkyl, substituted alkyl, aryl, cycloalkyl or allyl, Z completes a heterocyclic nucleus and X is an acid radical. The dyes are obtained by the usual condensation techniques from intermediates of formulµ
Patent GB-366417-A (GB)
Title: Improvements in or relating to the production of hydrogen peroxide
IPC: C01B15/013
Filed: 1931-07-22
Abstract: In the production of pure hydrogen peroxide by a fractional distillation in vacuo, especially of solutions obtained by decomposing barium peroxide with sulphuric acid, the vapours consisting of hydrogen peroxide and water vapour are freed, prior to condensation, from constituents in the form of mist and drops. This may be effected by passing the vapours through a chamber of such dimensions that the diminution of their rate of travel causes the drops to separate out, by passing the vapours through a layer p  of finely grained ceramic or other material which does not decompose hydrogen peroxide, or by electrostatic treatment. Specification 167,156, [Class 32, Distilling &c.], is referred to.
Patent GB-644543-A (GB)
Title: Dusting powder for plant seeds
IPC: A01C1/08
Filed: 1948-08-09
Abstract: A dry powder for dusting plant seeds consists of a mixture of kieselguhr, powdered gypsum, soluble magnesium or potassium compounds or mixtures thereof, and trace elements such as iron, manganese, titanium and vanadium compounds, with or without a small amount of aromatic oils and volatile substances which occur free or combined in seeds, such as aliphatic or aromatic mustard oils, carraway oil and thymol and with or without a fungicide. Industrial waste gypsums, such as superphosphate gypsum, or substances containing gypsum, such as ground superphosphate or slags, especially basic slag, which have been decomposed with sulphuric acid, may be used.  The powder may contain at least 1 part by weight of kieselguhr to 1 part by weight of the other mineral constituents.  In use, seeds, particularly cereals, are thoroughly mixed in the dry state with the powder in amount e.g. of 0.5 to 10 per cent by weight of the seeds.  The Specification as open to inspection under Sect. 91 comprises also compositions consisting of kieselguhr, powdered gypsum, and soluble magnesium and/or potassium compounds.  This subject-matter does not appear in the Specification as accepted.
Patent GB-142004-A (GB)
Title: Improved nerve tonic
IPC: A61K36/00
Filed: 1919-08-27
Abstract: 142,004. Rhodes, J. Aug. 27, 1919. Medicines for internal use.-A nerve tonic consists of an infusion of lemons to which salicyclic acid and iodide of potassium are added.
Patent GB-302192-A (GB)
Title: A combination of a carpet sweeper and hair drying machine
IPC: A47L5/26
Filed: 1927-08-10
Abstract: 302,192. Ludwin, B. A. Aug. 10, 1927. Vacuum cleaning-apparatus.-An air heater may be attached to the outlet in place of the dust bag, and the usual long handle removed, allowing the apparatus to be used for hair drying. The Figure shows the heater k supplied from the electric motor circuit by an adapter d. A short handle b replaces that used in cleaning. The motor is mounted on a base containing the fan and a brush.
Patent GB-381633-A (GB)
Title: Improved method of making paper
IPC: D21H17/62
Filed: 1931-07-24
Abstract: 381,633. Sizing paper pulp. PAPER MAKERS CHEMICAL CORPORATION, River Road, Kalamazoo, Michigan, U.S.A, July 24, 1931, No. 21203. Convention date, July 25, 1930. [Class 96.] To stock in the beater is added size as a powder consisting of rosin saponified with an alkali. In an example 100 lbs. of commerical rosin is cooked with 40 lbs. of water and 18 lbs. of soda ash or with caustic soda or potash, ammonium hydroxide, sodium silicate, potassium carbonate &c. The cooked product may be atomized in a current of hot air ; alum may be added as a fixative.
Patent GB-680548-A (GB)
Title: Improvements in or relating to radar systems
Inventor: BRANDON PERCY SAMUEL
IPC: G01S1/02
Filed: 1949-08-15
Abstract: 680,548. Radiolocation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 7, 1950 [Aug. 15, 1949], No. 21235/49. Class 40 (vii). Relates to frequency-modulated radar systems in which the beat note produced by heterodynizing the transmitted and received waves is frequency analysed by applying it to a fixed band-pass filter, the frequency of the beat note being cyclically varied at a comparatively slow " analysing" " rate by cyclically varying the rate of change of the transmitter frequency as disclosed in Specification 620,568 or by maintaining said rate of change constant and heterodynizing the beat note with a local oscillation whose frequency is cyclically varied at the " analysing " rate as disclosed in Specification 621,846 so that the filter produces an output at a time in the " analysing " cycle which is dependent on the range of the reflecting object. In order to obtain a more accurate range indication in such systems, the transmitter frequency is modulated with an additional recurrent sinusoidal or sawtooth " ranging " waveform as disclosed in Specification 622,101 whose recurrence frequency is adjusted to maximize the output from the filter. When this condition obtains the echo time is equal to the " ranging " period on an integral multiple thereof and the " ranging " frequency control may be calibrated directly in terms of range, but when the " ranging " frequency control is incorrectly set the beat note will be frequency modulated at the " ranging " frequency as shown in Fig. 2b which illustrates the conditions obtained with a sinusoidal " ranging " modulation having a frequency deviation less than the average frequency of the beat note. Under such conditions the filter is excited only when the frequency of the beat note sweeps rapidly through the pass band FB of the filter and the resultant output from the filter is reduced, but the presence of such an output tends to make the setting of the " ranging " frequency control rather flat and according to the present invention the resultant output from the filter when the " ranging " frequency control is incorrectly set is reduced by reducing the amplitude of the beat note as its frequency sweeps through the pass band of the filter recurrently at the ranging frequency. This may be achieved by applying the beat note to the filter through an amplifier whose grain is varied cyclically at double the ranging frequency by a sinusoidal or peaky waveform, Figs. 3 and 4; alternatively the amplitude of either the received echo wave or the transmitted wave applied directly to the receiver may be varied cyclically. When a sawtooth " ranging " waveform is employed, Fig. 5 (not shown), the gain control waveform is preferably sinusoidal and should reduce the gain to zero during the sawtooth flyback time.
Patent GB-872437-A (GB)
Title: Improvements in piston-and-ring assemblies
Inventor: CROSS ROLAND CLAUDE
IPC: F16J9/00
Filed: 1959-06-22
Abstract: 872,437. Pistons. CROSS MANUFACTURING CO. (1938) Ltd. May 3, 1960 [June 22, 1959], No. 21303/59. Class 122 (1). To prevent slap a piston 2 is biased towards the thrust-receiving side of the cylinder 1 by a split piston-ring 5 housed in a groove 3 in the piston and attached thereto, as by a set-screw 7, at a point diametrically opposite the split 6 in the ring. Both the ring 5 and the groove 3 are eccentric with the maximum radial thickness of the ring located in the maximum depth of the groove and the ring secured by the screw 7 through its maximum thickness and split at its minimum thickness. When assembled the piston is disposed in the cylinder so that the screw 7 is located on the thrust-receiving side of the cylinder. Preferably, two eccentric rings 5 are fitted on the piston, as shown in Fig. 1. The eccentric rings may be used in conjunction with conventional concentric split-rings.
Patent GB-1119196-A (GB)
Title: Crane for loading and unloading ships
IPC: B66C23/10
Filed: 1966-05-13
Abstract: 1,119,196. Jib-cranes for ships. C. I. WADEFELT. 13 May, 1966 [19 May, 1965], No. 21324/66. Heading B8B. A crane for loading ships has a U-shaped boom A with legs 13 which are pivoted at 12 to a carriage 4 supported by wheels 3 on longitudinal rails 2 disposed on each side of hatches 1. The crane is designed for loading shipping containers and has two lifting cables 22 which pass over spaced pulleys 23 on the boom. Pulleys 21, 21a, are arranged to provide level luffing when the boom is luffed by rams 16, 17. Alternatively the boom may be luffed by a pair of hydraulic motors carrying pinions which mesh with an internally toothed ring gear mounted on the boom concentric with the pivot pin 12. The boom may be mounted on a subsidiary carriage displaceable transversely of the ship on the carriage 4.
Patent GB-1022492-A (GB)
Title: Improvements in pole pieces for magnets and in devices employing such pole pieces
IPC: H01P1/215
Filed: 1963-05-28
Abstract: 1,022,492. Electromagnets; electromagnetic waveguides. SPERRY RAND CORPORATION. May 28, 1963 [May 28, 1962], No. 21368/63. Headings H1P and H1W. Polepieces 9, 10 are formed with holes of graded size and/or spacing transverse to their length to provide a required magnetic field distribution. When the poles are applied to a waveguide as shown, the field acts in layers 11, 12 of ferrite gyromagnetic material to act as a microwave harmonic suppressor. The holes may act as liquid-cooling ducts.
Patent GB-988600-A (GB)
Title: Improvements in or relating to hydraulic lifting mechanisms for movable apparatuses actuated manually by an operating handle, such as hand pallet trucks, lifting trucks and the like
IPC: B62B3/065
Filed: 1962-06-04
Abstract: 988,600. Pallet trucks. A. RATEAU. June 4, 1962 [June 12, 1961], No. 21405/62. Heading B8H. In Fig. 1, an hydraulic unit for raising the platform 30 of a hand pallet truck is operated by a pivoted lever 7 which, after operation, is returned to a vertical position by a spring 20 of a pump 1. The piston 2 of the pump is connected to the lever 7 by a rod 6 and the pump body is mounted beneath a ram 4 for raising the platform 30. A bag 11 contains a reserve of oil for the unit. In Fig. 2, a ball valve 21 is provided in the body of the ram 4 but the ball may be unseated by the piston 5 of the ram engaging a rod 22. A pressure limiting device 24 is provided. With the piston 5 of the ram 4 in its lower position, upon moving the pump piston 2 inwardly, oil flows past a valve 14 to move the piston 5 upwards. When this piston engages the lower end of the rod 22, i.e. after a spring 23 has been sufficiently compressed, the valve 21 is opened and pressure is released through pipe 16. Thus, after the platform 30 has been raised, an operator may move the lever 7, which is used also for steering the truck, without having to overcome resistance due to pumping. The operator may actuate a valve 29 to allow the piston 5 and platform 30 to be lowered.
Patent GB-405029-A (GB)
Title: Improvements in or relating to a fluxing device for a can bodymaker
IPC: B23K1/16
Filed: 1932-07-29
Abstract: 405,029. Soldering can bodies. FARRER, J. O., 27, Chancery Lane, London.- (Continental Can Co., Inc. ; 100, East 42nd Street, New York, U.S.A.) July 29, 1932, No. 21467. [Classes 83 (ii) and 83 (iv).] In a machine for making lap or lock-seam can bodies, in which the underlapping sections 4, 5 and 6 of the seam are passed under fluxing devices prior to bending the blank, the part 6 of the lapped seam which is at the top of the body is given an additional coating of flux by an auxiliary fluxing device. The blank 1a for a lock seam body, which is fed along a bed 8 by feed bars is first notched to form the parts 5 and 6 and the hook portions 2, 4 are then formed as described in Specification 297,864, [Class 83 (iv), Metals, Working]. The presser bars 11 which hold the blank on the bed at each side thereof during these operations, are carried by arms 13 pressed down against the action of a spring 18, by a cam 17. The bar has connected thereto by bolts and separated therefrom by springs a work engaging-section 11a. A plate 33 secured by bolts 21 to the bar holds a fluxing pad 35 for the part 6 of the body, the pad being supplied with flux from a container 32 via a tube 39 and channel in the plate 33. During feeding of the blank flux is supplied to the hooked portion 4 thereof and the parts 5 and 6 also pass under a roller 24 mounted on a spring-pressed lever 25 and supplied with flux from the container through a wick, pipes 31 and 30 and a brush 30a.
Patent GB-1209297-A (GB)
Title: Process for the production of polyurethane elastic mouldings which have a compact surface
Inventor: HAUPTMANN GUNTER
IPC: C08J9/14
Filed: 1969-04-28
Abstract: 1,209,297. Polyurethane foams. FARBENFABBIKEN BAYER A.G. 28 April, 1969 [7 May, 1968], No. 21495/69. Headings C3C and C3R. . Polyurethane foams which have a compact, i.e. non-cellular surface, are prepared by reacting under compression in a mould a compound containing reactive hydrogen atoms with a polyisocyanate in the presence of a blowing agent which is a mixture of a halogenated hydrocarbon and a hydrate of an organic compound which splits off the water of hydration at temperatures above 40 C. The reactive hydrogen containing compound is most suitably a polyalkylene glycol ether and the polyisocyanate may be a carbodiimide modified diphenylmethane - 4,4<SP>1</SP> - diisocyanate, a prepolymer obtained by reacting a polyol with diphenylmethane - 4,4<SP>1</SP>- diisocyanate or toluylene - 2,4 - or - 2,6 - diisocyanates or a poly - phenylpolymethylene polyisocyanate. Preferred compounds which split off water of hydration are hydrates of ethylene glycol of the formulae C 2 H 6 O 2 .2H 2 O or 3C 2 H 6 O 2 .2H 2 O or chloral hydrate.
Patent GB-223699-A (GB)
Title: Improvements in or relating to protective arrangements for electric distribution and like systems
IPC: H02H3/02
Filed: 1923-08-25
Abstract: 223,699. Electrical Improvements, Ltd., Gregory, R. W., and Grant, L. C. Aug. 25, 1923. Cut-out arrangements.-Distribution systems are protected against overload by fusible cut-outs which are adapted to melt under a predetermined overload and to be independently severed or fused on the occurrence of a sectional fault by means set into action by a balanced protective system. By these means, discriminating action is obtained and other fuses in series are not affected. In the arrangement shown in Fig. 1, the overload fuses B protecting the feeder section A blow in the usual wav on the occurrence of overload of a sufficient amount. In the event of a fault in the section, balanced protective gear of the Merz-Price type comes into action to trip two hammers G which sever the fuses. The trip coils E may release springs which engage chiselshaped members and cause them to cut the fuse wires, or the current in the pilot wire system may ignite an explosive which destroys the fuse. In the arrangement shown in Fig. 4, the pilot wire current or a current brought into action thereby heats a wire J which bears against the fuse wire and melts it. In the arrangement shown in Fig. 5, an impulse generator brought into action by the pilot-wire current supplies an impulse to the transformer winding L<1> which energizes a tuned circuit L, M and melts the fuse B.