baber/WOPTO huggingface dataset:
Patent GB-1155084-A (GB)
Title: Improvements relating to Rotary Fluid Pumps and Motors
Inventor: WALTER ROBERT DENIS
IPC: F04C2/08
Filed: 1965-08-21
Abstract: 1,155,084. Rotary positive-displacement pumps and motors. CONCENTRIC (ENGINEERING) Ltd. Aug.24, 1966 [Aug. 21, 1965], No. 35984/65. Heading F1F. In a rotary positive-displacement pump, or motor, of the internally-meshing gear type, radial sealing of the working spaces between an externally-toothed rotor 10, Fig. 2, and an internally-toothed rotatable ring 11 is effected by vanes 18 slidingly lodged in slots 17 within the teeth 16 of the rotor, outward radial-displacement of each vane being restricted by a lateral projection 21, Fig. 3, on the innermost end of the vane engaging with a recess 22 in the rotor, thereby preventing the rotor becoming jammed by the teeth on said ring. Chamfered edges 20 on each vane give the working fluid, especially that on the high-pressure side of the pump or motor, access to the radially-innermost end of the vane so as to press the vane towards the ring 11. It is indicated that the curved portions of the profile of each tooth are constituted by arcs of circles and that each vane may also have a channel (not shown) extending longitudinally along one side thereof wherein a blade spring is situated, which spring extends along the channel and beneath the innermost end of the vane so as to press the vane against one wall of the respective slot 17 and against the ring 11. In a second embodiment, Fig. 5 (not shown), both of two intermeshing externally-toothed rotors (30, 31) have radial-sealing vanes lodged in slots within the teeth thereof.
Patent GB-906808-A (GB)
Title: Improvements in high voltage transformers
Inventor: HANCOCK COLIN WILLIAM
IPC: H01F30/10
Filed: 1958-11-10
Abstract: 906,808. Electric transformers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 16, 1959 [Nov. 10, 1958], No. 36050/58. Class 38 (2). The cylindrical primary winding 2 of a high voltage transformer, which may supply an X- ray tube, is wound on former 1 through which passes magnetic core limb 12 and is surrounded by secondary winding 3 which has successive layers of decreasing axial length to produce a roughly spherical shape, the resulting structure being embedded in a surrounding mass of insulation in which are distributed metal layers which ensure a uniform potential gradient about the secondary winding. The embedding insulation 8 may be epoxy resin or silicone rubber applied in layers, e.g. by dipping in thixotropic material, shaped in moulds and polymerized. Metal powder may be sprayed over each layer to form screens 9 of which the outermost 15 is earthed. The H.T. lead 7 from the secondary winding embedded in the insulation and surrounded by screen extensions 10 leaves the transformer diametrically opposite to the semicircular core yoke 13. Insulation between the windings and between their layers, bonds to embedding insulation 8. An X-ray tube may be supplied from the series connected secondary windings of two similar transformers having a common core (Fig. 3, not shown).
Patent GB-1114041-A (GB)
Title: Carpets
Inventor: BREENS LEON FRANK HADDON
IPC: D02G3/40
Filed: 1964-09-03
Abstract: A tufted or other carpet has pile of flocked yarns, made by coating nylon or regenerated cellulose continuous filament yarns with adhesive and covering them with short nylon or regenerated cellulose fibres in an electrostatic field.
Patent GB-938083-A (GB)
Title: Improvements in and relating to photoconductive material
IPC: C07D241/08
Filed: 1960-10-21
Abstract: Photoconductive tetragonal crystalline indium sesquisulphide is produced by forming a mixture comprising indium and sulphur, the sulphur being present in excess of the stoichiometric amount thereof, and a total addition of from 0 to 1 atom per cent of such mixture of one or more of the following elements; copper, silver, gold, zinc, cadmium, mercury, germanium, tin, lead, nitrogen, phosphorus, arsenic, antimony, fluorine, chlorine, bromine or iodine and then placing such mixture into a vessel which is evacuated and then sealed.  A portion of the vessel is heated to a temperature of at least 1050 DEG C., while the other portion of the vessel is maintained at a substantially lower temperature thereby maintaining a part of the sulphur in the liquid state and controlling the sulphur vapour pressure.  The temperature of the cooler portion of the vessel is then progressively raised to the temperature of the rest of the vessel to obtain a homogeneous melt The homogeneous melt is progressively cooled in the vessel to room temperature and indium sesquisulphide is recovered in which indium and sulphur are present in substantially stoichiometric proportions.  To improve the photoconductive properties, the melt or the final crystals may be subjected to thermal treatment which can be carried out either during the final cooling step of the melt or after the photoconductive crystals have been prepared. The treatment is a two-step annealing process in which the melt or the crystals are heated under a sulphur atmosphere, the first step being between 900 DEG  and 750 DEG C. and the second step between 350 DEG  and 200 DEG C.
Patent GB-964702-A (GB)
Title: Improvements in and relating to the degassing of, and addition of change materials to molten metal
IPC: C21C7/10
Filed: 1960-10-21
Abstract: A method for the production of metals or alloys comprises applying a vacuum to the bath of molten metal until it is substantially degassed, adding the alloying or slag forming materials while maintaining the vacuum and <PICT:0964702/C6-C7/1> <PICT:0964702/C6-C7/2> continuing the vacuum treatment until no more gas is evolved from the bath.  A purge gas may be supplied to the melt during the degassing treatment.  The charge materials may be added from a container which has a bottom 104, Fig. 3, of wood or aluminium which is disintegrated by heat from the melt or a bottom 76 which is dropped with rod 77 into the melt, Fig. 2.  The apparatus is described for the addition of lime aluminium, vanadium, silicon, and exothermic chrome to low alloy steel.
Patent GB-942377-A (GB)
Title: Improvements in or relating to force measuring instruments
IPC: G01L1/04
Filed: 1958-11-11
Abstract: 942,377 Dynamometers. L. FARNELL & CO. Ltd., and I. W. DAVIS. Feb. 8,1960 [NOV. 11, 1958], No. 36249/58. Heading G1W. A mounting for a measuring device, for example, a dial gauge extensometer 21, in a proving ring 11 adapted to be placed between the platens of a press to measure the load, comprises a ring 13 within which the gauge is supported and which ring is mounted in the proving ring on steel balls 17 diametrically oppositely disposed between the two rings. The gauge is secured to a bracket 18 rigidly attached to the ring 13 and has a feeler arm 22 which bears against the flat end of a boss 19 also attached to the ring 13. Pressure is applied to the proving ring through external bosses 12.
Patent GB-1453927-A (GB)
Title: Fuse assemblies
IPC: H01R13/68
Filed: 1972-08-03
Abstract: 1453927 Two-part couplings; fuses EDWARD WILCOX & CO Ltd 1 Nov 1973 [3 Aug 1972] 36273/72 Headings H2E and H2G A fuse assembly comprises a carrier 11 and a base (16), the carrier having contacts 12 extending therefrom each with a respective projection 14 and the base having contacts 17 each of which comprises two insulation pieces 18 having an L- shaped passageway 21<SP>1</SP>, 21 which extends from a contact receiving slot (15) in the base to a passageway 20 in the conductive portion of the base contact. The carrier is inserted into the base such that the projections 14 travel along passageways (15<SP>1</SP>) in the base and into the passageways 21<SP>1</SP>, 21, 20 to make electric connection and be locked against direct removal. The passageways and projections can be arranged to allow insertion only from a correct orientation.
Patent GB-1049307-A (GB)
Title: Improvements in mechanical excavators or other mechanical earth working machines
IPC: E02F3/30
Filed: 1965-08-24
Abstract: 1,049,307. Excavators. POCLAIN. Aug. 24, 1965 [Sept. 25, 1964], No. 36382/65. Heading E1F. To allow of an excavator being able to dig a vertically walled trench in sloping ground the excavator tool-carrying arm of the excavator is in two parts that are pivotal connected about an axis at right angles to the axis about which the bucket and the arm-carrying boom mounted on the mobile base of the excavator are connected to the opposite ends of the arm.
Patent GB-1566627-A (GB)
Title: Can bodies made from light metal blanks
IPC: C22C21/00
Filed: 1977-09-01
Abstract: For producing cold-extruded and stove-enamelled aluminium cans from annealed blanks, pure aluminium with 0.05 to 0.1% of silicon and 0.1 to 0.25% of iron is used, at least two elements, which inhibit recrystallisation and show peritectic behaviour in aluminium, being added to the pure aluminium in quantities of 0.05 to 0.3% each. In place of the elements showing peritectic behaviour in aluminium, 0.05 to 0.9% of manganese can also be added to the pure aluminium. The elements inhibiting recrystallisation cause a reduction of the decrease in strength of the work-hardened can bodies during stove-enamelling.
Patent GB-820437-A (GB)
Title: Recovery of ammonia and hydrogen cyanide
IPC: C01C3/02
Filed: 1957-11-22
Abstract: <PICT:0820437/III/1> Ammonia is separated from a gaseous mixture comprising ammonia and hydrogen cyanide by contacting the mixture with an aqueous solution comprising acetic or propionic acid and the ammonium salt thereof, the amount of acid present being in excess of that required to absorb all the ammonia as ammonium salt and the contacting being effected under such conditions that all the ammonia is so absorbed, stripping off any hydrogen cyanide which has also been absorbed under such conditions that no ammonium salt is decomposed, and decomposing a portion of ammonium salt so as to produce gaseous ammonia and a solution of free acid and ammonium salt suitable for recycling to the process.  The gaseous mixture treated may be obtained by the interaction of ammonia and a hydrocarbon, and may contain 6% of HCN, 2% of NH3, 21% of H2O, 8% of H2, 4.4% of CO, 0.3% of CO2, 0.5% of CH4, 0.1% of O2, and 57.7% of N2.  The ratio of acid to ammonium salt in the contacting solution may be 1.25-1.7. The proportion of water present may be 50-90%.  A typical solution contains 7% of acetic acid, 15% of ammonium acetate, and 78% of water.  As shown, a gaseous mixture is passed up a packed ammonia absorption tower 12a from a line 11 in countercurrent to an acid solution from line 12.  Using atmospheric pressure the temperature in the tower 12a is preferably below 100 DEG  C., and may for example range from 50 DEG  C. at the top to 100 DEG  C. at the bottom. Superatmospheric pressure may be used instead of atmospheric pressure.  The resulting ammonia-free gas is passed via lines 14 and 18 to a hydrogen cyanide absorption tower 20a up which it is passed in countercurrent to water from line 20.  The residual gas is passed off via line 21, a portion of the gas being bled off and passed via line 17 to a hydrogen cyanide striping tower 13a up which it is passed in countercurrent with solution which has been passed from the ammonia absorption tower 12a via line 13.  The temperature in the tower 13a is preferably not greater than 80 DEG  C. at atmospheric pressure.  Stripped hydrogen cyanide is passed into line 18, via line 16, while hydrogen cyanide-free solution is passed via line 15 to an ammonia stripping tower 15a having an upper condensation section. The bottoms temperature of tower 15a may be 110-175 DEG  C., and is preferably 130-165 DEG  C., and the pressure may be atmospheric pressure to 75 p.s.i.g., and is preferably 15-60 p.s.i.g.  Bottoms solution is recycled to tower 12a via line 12, while ammonia gas is passed off via lines 25 and 27.  In order to remove water from the circulating solution, a portion of the distillate may be bled off from the upper condensation section and passed via line 24 to a further ammonia stripping tower 24a, from which ammonia gas is passed into line 27 via line 26 and bottoms water is passed to waste via line 28.  The concentration of acid may alternatively be adjusted by the addition of water or concentrated acid at a suitable point in the cycle, or by distilling off some acid in tower 15a.
Patent GB-936073-A (GB)
Title: Improvements in rotating windows
IPC: B63B19/00
Filed: 1960-10-11
Abstract: 936,073. Clear view screens. HUNTING AIRCRAFT Ltd., and C. F. TOMS. Oct. 11, 1961 [Oct. 11, 1960], No. 36564/61. Divided out of 936,072. Class 20 (3). [Also in Group XXXIV] A rotating window has a rotatable member supported by fluid-pressure in an annular housing and means are provided for producing and maintaining said pressure. In an embodiment, the window 10 has outwardly-converging bearing surfaces 14, 15; two rings of turbine blades 16; and impulse buckets 17 on its periphery. The housing 11 has bearing surfaces 19, 20 and pressurized air is supplied to the clearances between the bearing surfaces 14, 19 and 15, 20, by means of inlets 28, 29 and passages 22, 23, and the air leaves through annular outlets 31, 32. In operation, the window 10 is rotated by nozzles 18 which direct air to the buckets 17 and by air from the outlets 32 which impinges on the blades 16. In a modification, the window has pressurized air directed on to one of its circular faces so as to balance the force caused by a relative movement between a craft, having said window fitted thereto, and the ambient air. The window is locked against rotation by an inflatable ring, heating elements are provided to overcome icing and a distrubuter for de-icing, or insect solvent, may be provided. The rotating of the window may be stopped by directing air to the buckets in an opposite direction to that of rotation.
Patent GB-807290-A (GB)
Title: Improvements relating to hydraulic servomotors
IPC: F15B9/12
Filed: 1956-11-29
Abstract: 807,290. Fluid-pressure servomotor control systems. GENERAL MOTORS CORPORATION. Nov. 29, 1956 [Nov. 30, 1955], No. 36593/56. Class 135. An hydraulic servomotor comprising a doubleheaded double-acting piston 15, Fig. 3, and a piston valve 62 slidable in a ported sleeve 61 to control the supply and exhaust of pressure liquid to and from the opposite ends of the cylinder 10 in which the piston slides, includes input and output arms 41, 42, Fig. 4, coupled to the piston by a pin 43 passing through struts 18 connecting the piston heads and a control lever 51 carried by the arm 41 on a pivot-pin 52. The pin 43 passes with clearance through an elongated slot 47 in the arm 41, has an enlarged head formed with flats 44 which are a close fit in an elongated slot 46 in the arm 42 and is received in a slot 53 in the lever 51 with sufficient clearance for smooth operation. The arms 41, 42 are fixed on the serrated ends of input and output shafts 27, 28 respectively and a clevis fitting 57 adjustably connects the lever 51 to the piston valve 62. On, e.g. slight clockwise rotation of the shaft 27, Fig. 3, the arm 41, through the clearance slot 47 will move slightly clockwise to cause anticlockwise movement of the lever 51 and hence rightward movement of the piston valve 62 to supply pressure liquid to the left-hand end of the cylinder 10 and exhaust it from the right-hand end. The piston 15 will then move to the right to rotate the output shaft 28 in the same direction as the input shaft and recentre the piston valve. Non-return valves 124 in the heads 16, 17 limit the pressure exerted by the piston and thereby the force exerted on the servomechanism. On failure of the pressure liquid supply the output shaft may be moved directly by the input shaft, the input arm 41 with lost motion bodily moving the piston 15 which then moves the output arm 42.
Patent GB-522790-A (GB)
Title: An improved method of and apparatus for welding the cages of ball bearings
IPC: B23K11/00
Filed: 1938-12-16
Abstract: 522,790. Making ball bearing cages; welding. WESTDEUTSCH WERKZEUGMASCHINEN AKT.-GES. Dec. 16, 1938, No. 36681. Convention date, Dec. 18, 1937. [Classes 83 (ii) and 83 (iv)] In spot welding together the halves of a ball-bearing cage the work is traversed by a complete number of current waves, to eliminate magnetization of the bearing, and the electrodes are prevented from being separated from the work until current ceases to flow. One or both rings are provided with projections which are flattened out on welding and all connecting points are welded at the same time so that massive electrodes may be used. The electrodes may be on the same side of the work, a current bridge D bring provided on the opposite side. The welding may be effected in a fatty emulsion which may contain an alkali and glycerine and the liquid container may form the current bridge.
Patent GB-1218498-A (GB)
Title: Compositions copolymerisable by uv-irradiation
Inventor: HEINE HANS-GEORG
IPC: C07C49/17
Filed: 1969-07-22
Abstract: 1,218,498. Compositions polymerizable by U.V. - irradiation. FARBENFABRIKEN BAYER A.G. 22 July, 1969 [26 July, 1968], No. 36730/69. Heading C3P. Compositions capable of polymerization by U.V. irradiation comprise at least one compound having a carbon-carbon double bond activated by a halogen atom or a carbonyl, cyamide, carboxy, ester, amide, ether or aryl group, or by a second carbon-carbon double bond or by a carbon-carbon triple bond, and containing as photosensitizer at least one α-substituted benzoin ether of the general formula in which Ar is an aromatic radical optionally substituted by at least one alkyl, alkoxy and/or halogen radical; and R 1  and R 2 , which may be the same or different, are optionally substituted alkyl, aryl or aralkyl radicals, or optionally substituted alkylene, arylene or aralkylene groups linked together by a further oxygen atom. In the examples unsaturated polyesters prepared from maleic anhydride, phthalic anhydride, propane diol-1,2, ethylene glycol,butane-diol-1,3 and trimethylolpropane diallyl ether dissolved in styrene and containing hydroquinone, and methyl acrylate are mixed with various photosensitizers and with paraffin and cobalt naphthenate dissolved in toluene and irradiated with a fluorescent lamp and a mercury vapour highpressure burner
Patent GB-1524515-A (GB)
Title: Tent or shelter
IPC: E04H15/28
Filed: 1975-08-21
Abstract: 1524515 Umbrella attachment R PRESTON 21 Aug 1975 [21 Aug 1974] 36735/74 Heading E1A A covering 5 for forming a tent supported by an umbrella 2, 3 comprises a generally conical part for engagement with the umbrella canopy and a side wall skirt depending from the periphery of the conical part. An access opening 7 is provided in the skirt and a lower hem having a pocket 6 may be provided and weighted to secure it engaged with the ground. The cover may be of transparent material and the shaft of the umbrella may be telescopic and pointed for driving into the ground.
Patent GB-960853-A (GB)
Title: Process for manufacturing a railway sleeper, and sleeper manufactured thereby
IPC: E01B3/44
Filed: 1961-10-13
Abstract: 960,853. Moulding railway sleepers. ETERNIT S.p.A. Oct. 13, 1961 [Nov. 2, 1960], No. 36776/61. Heading B5A. [Also in Division E1] Railway sleepers are formed by pressing laminated wet sheets of cement-asbestos in a mould to a maximum pressure below 300 kg/sq. cm., the maximum pressure being reached in less than five minutes. The sleeper is first formed from sheets of cement-asbestos between temporary walls on a tray containing the sleeper fittings, strengthening irons being introduced between the sheets. Walls comprising staves 3 with outlet ports 4 are then substituted so that during the subsequent pressing operation the excess water may escape into channels 5. By varying the width of the outlets 4, the maximum pressure, and the pressing time, the optimum amount of water for a satisfactory setting may be retained within the cement.
Patent GB-880706-A (GB)
Title: Improvements in and relating to the electrodeposition of copper
IPC: C25D3/40
Filed: 1957-11-27
Abstract: 880,706. Electrodeposition of bright copper and bronze. HARSHAW CHEMICAL CO. Nov. 27, 1957 [Nov. 28, 1956; Feb. 19, 1957], No. 37050/57. Addition to 855,793. Class 41. Copper is cathodically electrodeposited from an aqueous copper cyanide bath containing as a brightener a N-heterocyclic six-membered ring compound containing a group where C and N are members of the ring and Y is a nuclear thio substituent while subjecting the bath to agitation. The brighteners specified are those of the parent Specification and Specification 880,707, but the concentrations of copper cyanide, free cyanide and brightener are reduced as compared with those given in these Specifications. Preferably, the bath contains per litre 45 to 90 gms. copper cyanide, 6 to 13 gms. free cyanide, and 0.05 to 5 gms. brightener, optionally with 0.5 to 15 gms. of divalent tin which results in a bright bronze deposit, and is used at pH 9 to 14 and a temperature of 150 to 160 F. at a cathode current density of 10 to 60 amps./sq. ft., preferably employing interrupted D.C.
Patent GB-1332627-A (GB)
Title: Spraying apparatus
IPC: E01C23/22
Filed: 1972-08-09
Abstract: 1332627 Pressurized dispensing containers T J SMRT 9 Aug 1972 [28 Oct 1971] 37097/72 Heading F1R A pressurized dispensing container 11, Fig.1 comprises a push button 10 having a slot shaped nozzle outlet 33, the button 10 being actuated by an actuating bar 55, Fig.4, which engages a flat surface of the button to rotate the latter and align the outlet 33 in a direction transversely to the direction in which the container is to be moved during spraying, further movement of the bar 55 tilts the valve stems to initate the discharge, the button 10 also having two bevelled surfaces, only one of which 41 is shown, either of which can engage a surface 20 upon tilting of the button, to correct any misalignment of the valve stem relative to the container's axis. The bar 55 is operated by a bell crank 67, is spring biased, and has a portion 54 whose sliding movement is guided by screws 58, 59 in a slot 60. Pins 61, 62 which co-operate with slots, assist in guiding the bar 55.
Patent GB-323746-A (GB)
Title: Improvements in and relating to speed measuring and indicating apparatus
IPC: G01P3/58
Filed: 1928-09-07
Abstract: 323,746. British Thomson-Houston Co., Ltd., and Watson, G. O. Sept. 7, 1928. Divided on 332,418, [Class 38 (iv), Electric supply and transmission systems &c.]. S p e e d - indicator transmission mechanism.-Relates to speed indicating apparatus for electrical power supply systems of the kind in which a plurality of alternating current motors is supplied with current from a plurality of turbine driven alternators and consists in that each turbine or motor is provided with a separate speedometer operated by the current from a generator coupled to the particular machine with which the speedometer is associated, means being provided whereby when one turbine is being used to drive two or more motors the speed of that turbine is indicated on all the turbine speedometers simultaneously. In the electric ship propulsion illustrated, the port and starboard turbines 109, 110 have speedometers 111, 112. The fields 113, 114 of the turbine speedometer generators are connected in series with the fields 115, 116 of the propeller speedometer generators across the ship's busbars 85. If it is desired to connect the port turbine 109 to both speedometers, the auxiliary switch 117 associated with the port instrument is closed and the corresponding starboard switch 118 opened. The connection from the port turbine speedometer generator is then through lead 119, switch 117 calibrating resistance 120 and lead 121 to the indicator 111. The return is by way of leads 122, 123, 124, switch 117 and lead 125. The connection to the other indicator 112 is through lead 119 switch 117 lead 126, switch 118<a>, calibrating resistance 127<a>, lead 128, the return being through leads 129, 123, 124, switch 117 and lead 125. If it is desired to connect each turbine to its own speed indicator both switches 117, 118 are closed and these are so interconnected with switches 117<a>, 118a that these are both opened.