baber/WOPTO huggingface dataset:
Patent GB-833511-A (GB)
Title: Phase-shifting device for transmission lines
Inventor: BENNETT ARTHUR JAMES
IPC: H01P1/18
Filed: 1956-09-20
Abstract: 833,511. Phase-shifting devices. PYE Ltd. Sept. 9, 1957 [Sept. 20, 1956], No. 28793/56. Class 40 (8). A device for producing phase shift in a transmission line comprises a U-shaped section which is telescopically slidable relative to two parallel ports of the line by a mechanical drive so as to vary the length of the line and a calibrated indicating device, mechanically coupled to said section to indicate the phase shift produced by said variation. Two fixed parallel sections of coaxial line 4 are connected by a U-shaped section 5 which is telescopically slidable relative to the parts 4 in trombone manner. The section 5 is movable by rotation of knob 12 connected to a lead screw 10, which engages a block assembly 9 attached to said section and which is mounted between a bearing plate 11 and a front panel 1. A calibrated drum 13 is located behind said panel but visible through a window therein and rotated by means of a drive cord 16 attached to the assembly 9, when the section 5 is further inserted into section 4, against the action of a spring 17. The ends of the conductors of section 4 adjacent the section 5 are slotted and the inner and outer conductors carry spring clips 7 and 8 respectively ensuring good contact at the junction with section 5. The device is mounted in an insulated manner between the panel 1 and an insulating rear mounting plate 2 which are held in spaced relation by rods 3. Specification 826,574 is referred to.
Patent GB-304395-A (GB)
Title: Improvements in and relating to flexible couplings and to the manufacture thereof
IPC: F16D3/78
Filed: 1927-10-29
Abstract: 304,395. Morris Commercial Cars, Ltd., and Hamill, W. W. Oct. 29, 1927. Universal couplings.-Flexible universal-coupling discs, of the kind adapted to be secured at alternate points to driving and driven members, are built up of layers of cotton or other parallelcord fabric, with or without widely-spaced weft " picks," the cords or threads forming the several layers being angularly disposed to one another. Tne threads of the layers a - - f, Fig. 5, may lie at the angles shown, or the angle between the threads of adjacent layers may be 360‹ divided by the number of layers or, as shown at i, j, Fig. 3, may be 90‹. The threads may be coated or treated with rubber, and rubber sheets may be interposed between the layers, which are vulcanized together. The bolt-holes l are preferably formed by tapered pegs, which may be included in the vulcanizing-mould, the threads being crowded together, as shown at m, instead of being cut. Metal reinforcement may be provided at the holes. The central aperture o also may be formed by displacement of the threads.
Patent GB-1071386-A (GB)
Title: Dyestuffs and process for preparing them
IPC: C09B57/12
Filed: 1964-07-13
Abstract: The invention comprises dyestuff mixtures of isomeric compounds of the general formulae <FORM:1071386/C4-C5/1> in which A represents an unsubstituted or substituted phenylene or naphthylene radical and R represents a hydrogen or halogen atom or an alkyl, aryl, alkoxy, cyano, hydroxy, hydroxymethyl, carbalkoxy, acyloxy or amino group. In particular, A may be a phenylene radical substituted by a halogen atom, a C1-C4 alkoxy, C1 to C4 alkyl, cyano, nitr or a carbalkoxy group with 1 to 4 carbon atoms in the alkyl group.  The dyestuff mixtures may be obtained (a) by condensing 41,51-dichloro- or 41,51 - dibromo - 11,81 - naphthoylene - aryl-imidazoles or their substitution products with substituted or unsubstituted thiophenols in an organic solvent, if desired in the presence of an acid-binding agent, and heating the resulting di-phenylmercapto products with an excess of a thiophenol in the presence of catalytic quantities of alkali metal compounds in acid dialkylamides, or (b) by condensing a mixture of 4- and 5-chloro (or bromo)-11,81-naphthoylene-arylimidazoles with substituted or unsubstituted thiophenols in an organic solvent, if desired in the presence of an acid-binding agent.
Patent GB-360139-A (GB)
Title: Improved method of operation of valves in pressure changing apparatus
IPC: F15B3/00
Filed: 1930-09-26
Abstract: 360,139. Reducing or increasing fluid pressure. DEAN, H. P., Norton Hall, The Green, Norton-on-Tees, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Sept. 26, 1930, No. 28942. [Class 69 (ii).] Apparatus for reducing or increasing fluid pressure comprises an intermediate vessel with inlet and outlet valves, which are controlled in part by the pressure in the intermediate vessel so that the valves cannot be open simultaneously. In a form for reducing pressure, the intermediate vessel 3, Fig. 1, has inlet and outlet valves 2, 6, connected to pistons 9, 12 continually acted on by liquid from a high pressure accumulator 14 admitted to the cylinders 26, 27. A ram 5 acts in the vessel 3 and an hydraulic cylinder 4, and is moved to the right by liquid supplied in succession from low and high pressure accumulators 13, 14 under the control of a valve actuated by a trip member 10, the valve 6 being open at this time. A stud 15 then engages a lever 18 and releases a trip member 19 to allow weights 20, 31 to fall and open valves 21, 23 and close valves 22, 24. The cylinder 16 is thus put into communication with the high pressure side of an hydraulic system 25. Subsequently, a loaded valve 32 opens to establish communication between the cylinder 17 and the system 25. The areas of the piston 9, rod 37, and valve 2 are so chosen that the valve 2 cannot open until a predetermined pressure has been attained in the vessel 3, which is impossible unless the valve 6 has closed. The ram is returned by pressure entering through the valve 2, and cams 29, 30 driven from a motor 28 act to close the valves 21, 23 and open the valves 22, 24. The pressure is thus released from the cylinder 17 and the valve 2 closes, followed by the opening of the valve 6 when the pressure in the vessel 3 is sufficiently low. In the form shown in Fig. 2 for increasing pressure, the valve 2 is an outlet valve and the valve 6 an inlet valve, and the ram 5 is moved to the left by a cylinder 34 supplied from the accumulator 14. When a stud 15 releases a trip 19, a weight 20 falls and closes a valve 23 and opens a valve 24. Water from the hydraulic system 25 is then supplied to the cylinders 16, 17 and closes the valve 6, followed by the opening of a loaded valve 32 to establish communication between the system 25 and the cylinder 4 to move the ram 5 to the right. The pressure in the vessel 3 is increased and on the attainment of a predetermined value the valve 2 opens. Subsequently, the cam 29 closes the valve 24 and opens the valve 23, to release the pressure in the cylinders 16, 17 and cause the valve 32 to close, after which the valve 2 is closed, the ram. 5 returned, and the valve 6 opened as soon as the pressure in the vessel has fallen sufficiently. Specification 330,106, [Class 69 (ii), Hydraulic presses &c.], is referred to.
Patent GB-661849-A (GB)
Title: An improved flushing cistern
IPC: E03D1/08
Filed: 1949-11-14
Abstract: 661,849. Flushing cisterns. PEGLER, J. L. Nov. 14, 1949. [Dec. 6, 1948] No. 29134/49. Class 26. A flushing cistern is provided with a tubular compartment formed in or on a bell-shaped member and providing a water seal therein and also with a pressure operated means whereby water may be projected from the tubular compartment to initiate flushing of the cistern. As shown the cistern 10 has projecting therefrom the pipe 11 of a sump and arranged over the pipe 11 is a bell-shaped member 14 mounted on feet 15. Within the wall of the member 14 is a U-shaped compartment 18 from the closed end 19 of which project tubes 21, 22 the tube 22 projecting upwardly above the normal water level in a surrounding cylinder 25. Entering the cylinder 25 is the pipe 24 admitting water through the normal ball cock. an annular opening 26 being left surrounding pipe 24. Water entering by pipe 24 mounts in the cylinder 25 at a faster rate than it can escape into the cistern 10 through opening 26 so that eventually the water flows down tube 22 forming a water seal in the compartment 18 and also overflowing ever the cylinder 25 into the cistern. When the ball cock shuts off, the water in the cylinder 25 will gradually sink to the level in the cistern. Connected to the other closed end 20 of the compartment 18 is a pressure device comprising a tube 27 and diaphragm 29 with push button 30.
Patent GB-280206-A (GB)
Title: Improvements in trucks having elevatable platforms
IPC: B62B3/06
Filed: 1927-11-01
Abstract: 280,206. Wagner, E., (trading as Wagner Apparatebau, E.). Nov. 6, 1926, [Convention date]. Hand-trucks with elevatable platforms of the kind in which the platform is retained in elevated position by a pawl and in which the handle is refained in vertical position by abutments on a suitable part of the truck, the pawl is constructed so as to retain the platform in the elevated position and also to retain the handle in the vertical position. The platform 2 is raised by means of the handle 4 contacting with an abutment 5' and swinging over the usual sector 5 which is held in that position by a tooth 13<1> on a pawl 13 entering a notch 21. When the handle is raised to vertical position a hook 18 on a spring- controlled slidable sleeve 15 engages a notch on a member 10 integral with the pawl 13. To lower the platform 2 the handle is returned to lowered position and the sleeve 15 draws up the handle, causing an abutment 20 to raise the pawl 13 by means of a nose 14' on a flange 14 of the pawl. A hook 18 embraces the abutment 5<1> so that the sector 5 can be lowered by the handle. The upper surface of the pawl may be concentric or eccentric and is pressed by a member on the slidable sleeve to cause the tooth 13<1> to engage with the notch 21.
Patent GB-1308003-A (GB)
Title: Change speed gear train arrangements
IPC: F16H3/66
Filed: 1970-04-21
Abstract: 1308003 Change-speed gear NISSAN MOTOR CO Ltd 21 April 1970 [14 July 1969] 29252/72 Divided out of 1308001 Heading F2D Three sun-ring-planet trains 12, 13, 14, identical or not, with two or three input clutches K1, K2, K3 and three or four brakes B1, B4, provide four, five or six forward ratios, including direct drive and one overdrive, and one reverse. The basic arrangement, Fig. 1 (not shown), comprises only the trains 12, 13, 14, interconnected as shown, drive issuing to output 11 from C3, input 10 being applied selectively through the three clutches K1, K2, K3, respectively, to S1 for reverse; to R1, S2, S3, for the first three reduced ratios and direct-drive; and to C1, C2, R3 for direct-drive and overdrive fifth; whilst the three brakes B1, B2, B3 are applied respectively to R2 for third and fifth; to C1, C2, R3 for first and reverse and to R2 for second. Brake B2 has a parallel one-way brake 44. Eliminating the clutch K3 reduces the number of ratios to four. As shown, the planets P3 of the third-train are fast with planets P4 of an additional twoelement train, the sun S4 of which has an additional brake B4, which, with the clutch K1, gives a further and lowest ratio, making six in all. Ratios are specified and a graphical solution shown. Input and output shafts may be transposed.
Patent GB-1413187-A (GB)
Title: Buffer in particular for cranes
IPC: F16F1/37
Filed: 1973-06-20
Abstract: 1413187 Buffers FRIED KRUPP GmbH 20 June 1973 [21 June 1972] 29309/73 Heading F2S A buffer for a crane comprises a base-plate 4, a stack of discs 1, 2, 3 of foamed plastics material (e.g. polyurethane), and a protective shell 6 enclosing the periphery of the stack and the impact face 7 of the buffer. The discs are made of closed cell foam to give the buffer a speeddependent characteristic. The disc 1 is attached to the base-plate 4, during foaming of the disc, by projections 5. Discs 2 and 3 are then stuck to the disc 1. The shell 6, of relatively rigid plastics material, is preformed as a tight fit, pulled over the discs and attached to the baseplate 4 by adhesive and/or screws 10 sunk in a flat ring 9.  In the embodiments of Figs. 2, 3 and 4 (not shown) the protective shell is attached to the base-plate by drawing the rim of the shell into an annular groove in the base-plate (Figs. 2, 3) or in the disc 1 (Fig. 4). The shell is preformed as a loose fit, and then heat-shrunk on to the discs, the rim of the shell being drawn into the groove. In Fig. 2, the shell, as it is heated, is also drawn into the annular grooves between the discs, and around projections (16) on the impact face 7 of the buffer. A skin of plastics material may be sprayed on to seal the joint between the rim of the shell and the base-plate 4 or disc 1.
Patent GB-1139749-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L29/00
Filed: 1966-06-30
Abstract: 1,139,749. Field effects transistors. SIEMENS A.G. 30 June, 1966 [1 July, 1965], No. 29340/66. Heading H1K. In a field effect transistor with an insulated gate comprising a layer of ferro-electric material, the layer and semi-conductor body are formed as a single crystalline body, Either or both the layer and body may be monocrystalline. In Fig. 4, a tantalum or molybdenum electrode 30 is provided with a ferro-electric layer 29 by vapour deposition of barium titanate with suitable addition of lead titanate or lead titanate stainate which allows for epitaxial deposition of the semi-conductor layer 32 consisting of silicon. Planar technique is used to provide region 25 of opposite conductivity type leaving a channel between source and drain electrodes 27 and 28. Alternatively the ferro-electric material may be deposited on the surface of a semi-conductor body, and the semi-conductor material may consist of cadmium sulphide or cadmium tellurode or a mixed crystal of AIII BV compounds such as gallium arsenide and gallium antimonide.
Patent GB-958284-A (GB)
Title: Improvements relating to anchor grips for tensioning wires, rods or the like
Inventor: DRYSDALE JOHN
IPC: F16G11/04
Filed: 1961-08-15
Abstract: 958,284. Friction-grip fastenings. CABLE COVERS Ltd. Aug. 15, 1961, No. 29349/61. Heading E2B. The subject matter of this Specification is the same as that of Specification 869,923 apart from three wedge-shaped segments being used instead of four.
Patent GB-1479077-A (GB)
Title: Recording and/or playback apparatus
IPC: G11B15/675
Filed: 1975-07-14
Abstract: 1479077 Recording and playback of cassettes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 July 1975 [17 July 1974] 29414/75 Heading G5R [Also in Division B8] A function of a recording and/or playback apparatus is controlled according to the presence or absence of a cassette in the correct orientation at a predetermined location, such presence or absence being indicated by the field from a field-producing element in the cassette. As shown, two metal arms 13, 14 carrying pressure pads 18, 19 in a cassette 4 form, together with a spring 15 acting on them, a capacitive coupling between two electrodes 33, 34 in a switching circuit 32 controlling the drive motor 24 of a magazine 3 containing cassettes 4. Alternatively the field-producing element in the cassette may be a permanent magnet (51), Fig. 2 (not shown), or a ferromagnetic component (61), Fig. 3 (not shown), and may control a latch (54) preventing insertion of a transducer (48) into the cassette.
Patent GB-400413-A (GB)
Title: Process for the production of lactic acid
IPC: C07C51/295
Filed: 1932-10-21
Abstract: Zinc lactate is produced by adding zinc sulphate solution to a solution of calcium lactate obtained by the reaction of a carbohydrate with calcium hydroxide.  Preferably the lactate and sulphate solutions are both hot, and the calcium sulphate is removed while the mixture is hot, and zinc lactate is crystallized by cooling.ALSO:Carbohydrates are converted into lactic acid by heating to at least 200 DEG  C. under pressure above atmospheric (such as 20-35 atmospheres) with an alkali or alkaline-earth hydroxide.  From the product insoluble matter is removed, and the lactic acid is recovered as such, for instance, by addition of sulphuric acid or as zinc lactate by addition of zinc sulphate.  In an example, cane sugar is dissolved in hot water to make a solution of about 40 per cent, calcium hydroxide is added, and the mixture is heated to 210-220 DEG C. at 25-30 atmospheres pressure with stirring for 1,5-2,5 hours. The filtered reaction liquor may be allowed to stand at room temperature or at 5-10 DEG  C., preferably with stirring, to crystallize calcium lactate, sulphuric acid being added to the mother liquor to liberate lactic acid; or sulphuric acid may be added to the whole solution to obtain lactic acid. Alternatively the calcium lactate solution may be treated with zinc sulphate solution, both solutions being preferably hot.  The calcium sulphate is removed while the liquor is hot and zinc lactate is crystallized out by cooling.  The mother liquor may be treated with sulphuretted hydrogen or barium sulphide to produce lactic acid by removing the zinc, in the latter case sulphuric acid being then added to remove the barium.
Patent GB-1147183-A (GB)
Title: Substituted 2-trifluoromethyl benzimidazoles and their use as herbicides
Inventor: BURTON DENNIS ERNEST
IPC: C07D235/10
Filed: 1965-07-13
Abstract: 1,147,183. 2-Trifluoromethyl-benzimidazoles. FISONS PEST CONTROL Ltd. 23 June, 1966 [13 July, 1965; 31 July, 1965; 23 Oct., 1965; 3 Nov., 1965], Nos. 29585/65, 32885/65, 44987/65 and 46594/65. Heading C2C. [Also in Division A5] The invention comprises the compounds 5 - tert.butyl - 2 - trifluoromethyl benzimidazole, 5 - bromo - 2 - trifluoromethyl benzimidazole, 5 - iodo - 2 - trifluoromethyl benzimidazole, 4,6 - dibromo - 2 - trifluoromethyl benzimidazole, 5,6 - dibromo - 2 - trifluoromethyl benzimidazole, 4 - bromo - 8 - nitro - 2 - trifluoromethyl benzimidazole, 4,6 - dinitro - 2 - trifluoromethyl benzimidazole, 4 - nitro - 5 - chloro - 3 - trifluoromethyl benzimidazole, 4 - nitro - 5,6 - dichloro - 2 - trifluoromethyl benzimidazole, 4,5 - dichloro - 6 - nitro - 2 - trifluoromethyl benzimidazole and 4,6 - dichloro - 5 - nitro - 2 - trifluoromethyl benzimidazole, and salts thereof. These compounds and their salts may be prepared by the general methods described in Specification 1,087,561.
Patent GB-664411-A (GB)
Title: Improvements in or relating to electric infra-red heat generators
IPC: A61N5/06
Filed: 1948-11-15
Abstract: 664,411. Therapeutic radiation treatment. MODINSTAL ELECTRIC CO., Ltd., and MALINS, E. C. Dec. 13, 1949 [Nov. 15, 1948], No. 29653/48. Class 81 (ii). An infra-red treatment appliance comprises a heating element 4 in a reflector 1 and a screen 10 positioned between the element and the mouth of the body, the screen having apertures 11 so placed and dimensioned as to produce a uniform temperature over the said mouth, which, in use, is placed in direct contact with the patient's skin. The position and size of the apertures is determined experimentally by measuring the temperature at points over the surface to be irradiated and varying the holes to increase or decrease the amount of direct radiation until a uniform effect is produced.
Patent GB-1146918-A (GB)
Title: Production of flocked articles
Inventor: RAABE FRITZ
IPC: B32B27/12
Filed: 1966-07-01
Abstract: 1,146,918. Flocking. DR. PLATE G.m.b.H. 1 July, 1966 [14 July, 1965], No. 29716/66. Heading B6G. [Also in Division B2] Flocked articles, are produced by applying a plastics layer to a substrate, wetting the surface of the plastics layer by applying a compatible plasticizer or a. wetting liquid,. flocking the plastics layer, heating the plastics, layer to at least the melting temperature of the plastics layer and cooling the layer after the lower ends of the flocks have sunk into the layer. The articles.may have a substrate consisting of textiles,. wood or metal. The thermoplastic layer may comprise a. polyamide or polyurethane. The flocked articles; may be produced by covering the article-with a film or powder of thermoplastic plastics material, applying a plasticizer or a wetting liquid, applying the flock and passing the product through a heating zone to melt the plastics. In the examples: (1) a cotton fabric is flocked with 5 den polyamide fibres 1 mm. long melting at 215-220‹ C. using a film of a copolymer of caprolactam and adipic acid hexamethylene diamine as anchor layer and benzene sulphonamide as wetting agent; (2) a metal sheet is flocked with 10 den nylon 6 fibres 2 mm. long melting at 215‹ C. using a film of a copolymer of caprolactam and sebacic acid hexamethylene diamine as anchor layer and ethylene glycol acetate as wetting agent; (3) a steel sheet is flocked with polyamide fibres using a powder of a copolymer of caprolactam and sebacic acid hexamethylene diamine as anchor layer and benzene sulphonamide as wetting agent. Flocks of cellulose are mentioned.
Patent GB-1391830-A (GB)
Title: Switches
IPC: H03K17/96
Filed: 1972-06-26
Abstract: 1391830 Strain gauges WELWYN ELECTRIC Ltd 22 May 1973 [26 June 1972] 29822/72 Heading G1N [ Also in Division H1] A Piezo-resistive unit containing four elements connected in a bridge network is located under the spring-loaded key of e.g. an electric typewriter, whereby the bridge output when the key is depressed, due to the resistance changes in the elements, controls a logic circuit via a switching amplifier. The Piezo-resistive unit consists of a semi-conductor chip 9 (Fig.3) of N type silicon, with four elements 5-8 comprising P type regions formed by diffusion, covered by a film of silicon dioxide which has windows at the corners of the diffused regions where aluminium contacts 10-13 are deposited to allow connections from corners 39, 40 (Fig.9A) to be made to a battery and from corners 41, 42 to a voltage comparator 45, whose output changes from 0 to 1 at a pre-set input level, and reverts from 1 to 0 at a lower level, due to feedback resistor R8. In one embodiment, the Piezo-resistive unit 46 (Fig.10) is mounted on a cantilever beam 47 inside a housing 48 for deflection by a spring-loaded plunger 51 associated with a button 55. Alternative mountings are described and shown.
Patent GB-482528-A (GB)
Title: Improvements relating to abrasive cutting off or severing machines and wheels
IPC: B24B27/06
Filed: 1936-11-02
Abstract: 482,528. Severing by grinding. ROBINSON, H. G. Nov. 2, 1936, No. 29826. Convention date, Nov. 6, 1935. [Class 60] In a machine for severing by means of a thin grinding-disc, the work 13 to be severed is clamped in a holder 12 on a bed 10 and the grinding-disc 14 is mounted on a spindle 15 carried by an arm 16, pivoted at 17, and movable by a handle 18 to carry the disc 14 towards and from the work. The wheel rotates anti-clockwise and passes through a box 19 to which water or other liquid is supplied by a pipe 20, the box having a slot for the disc slightly wider than this. The wheel has therein two opposite recesses 21 to carry the liquid into the cut, and also has two series of perforations 23 .. 28, which may be arranged on spiral lines or otherwise, the radii of successive perforations being such that before a recess has been obliterated completely by wear of the wheel, another recess is formed by breaking into the next hole. A single recess and series of holes, or any number of recesses and series of holes may be provided ; the disc may be used for dry cutting without supply of liquid. Specification 13094/86, [Class 60], is referred to.