baber/WOPTO huggingface dataset:
Patent GB-913608-A (GB)
Title: High specific speed, flexible shaft driven, submersible pump
IPC: F04D29/22
Filed: 1959-10-25
Abstract: 913,608. Centrifugal pumps. PATAY, M., PATAY, L., and PATAY, P. Nov. 2, 1960 [Oct. 25, 1959], No. 14187/69. Class 110 (1). A centrifugal pump comprises an impeller having blades 12 of streamlined form, the outer surface CD being concentric to the impeller axis and the concave surface DE facing inwardly; there is no overlap between the blades when viewed from the impeller axis, and the passage between each two adjacent blades is convergent. The impeller can be of shrouded type. The pump casing 1 is of circular or volute form, the inlet AB preferably being equal in diameter to the impeller. The pump can handle water containing mud, gravel, sand, grit or other solids in suspension, sludge, sewage &c., without clogging. Replaceable wear-rings of hard rubber or stainless steel may be provided on the casing and impeller. Alternatively, the casing and impeller may be rubber-lined or the impeller may be of hard rubber. The impeller hub is journalled in a water-lubricated bearing 6. In addition, ball-bearings 4 and a shaft seal 5 are carried by a sleeve 10 bolted at 7 to the casing 1. The sleeve 10 may be integral with the outer casing of a flexible driving-shaft. The pump may be submersible.
Patent GB-568951-A (GB)
Title: Improvements in or relating to dimpling apparatus
IPC: B21D22/04
Filed: 1943-08-31
Abstract: 568,951. Flanging. CHICAGO PNEUMATIC TOOL CO. Aug. 31, 1943, No. 14195 Convention date, Oct. 13, 1942. [Class 83 (iv) Relates to dimpling machines, for countersinking sheet metal preparatory to flush riveting, of the type in which the die on the far side of the sheets is connected to the machine by a pull-pin passing through the hole and consists in means for preventing the pin from flying in the event of rupture. The pin 20 has the usual grooves 37 for gripping by the jaws 35 of the bevel closing sleeve 34, and head 21 against which the dimpling die 14 is retained by a spring clip 42. Beyond the head is a screwed extension 38 on which is fixed a handle 39 extending either parallel to the pin, as shown, or at right angles thereto. In a modification, the pin is weakened near the head by a groove 54 to ensure that fracture occurs here, a knob 52 covered with rubber 53 being held in the hand. In a further form, the knob is replaced by rubber vulcanized directly on to the end of the pin. The die 18 is mounted in a holder 26 secured to the cylinder 22 by an adapter 25 that also secures the packing-gland 32. The piston-rod 23 carries the sleeve 34 and a spring plunger 36 that engages the jaws. The piston is double-acting-and preferably oil-actuated.
Patent GB-528666-A (GB)
Title: Improvements in and relating to valve gear casings for internal combustion engines
IPC: F01L1/46
Filed: 1939-05-12
Abstract: 528,666. Valve-gear casings. PORSCHE, F. May 12, 1939, No. 14200. Convention date, May 12, 1938. [Class 7 (ii)] Tubular casings for the push rods of engine valve gear are made longitudinally resilient so as to effect their own sealing pressure at the points where the push rods pass through the engine casing. The Figure shows a push-rod casing 1 made resilient by being corrugated at 7 and 8, the end corrugations bearing against the packings 11 and 12 in the cylinder head and the crank case. Alternatively, the casing may be made of two tubes pressed apart by their own resilience. The invention may also be applied to the cam or other valve-actuating shafts.
Patent GB-553142-A (GB)
Title: Improvements in or connected with the attachment of jigs or templates for marking-out, drilling or otherwise working upon sheet metal
IPC: F16B13/08
Filed: 1941-11-04
Abstract: 553,142. Fastenings. SHORT BROS. (ROCHESTER and BEDFORD), Ltd., and SCOTT, E. Nov. 4, 1941, No. 14207. [Classes 44 and 89 (i)] [Also in Group XXIII] A jig 10 or templet for marking-out, drilling or otherwise marking upon sheet metal is secured to a bench 11 by means of bolt-like members 12 engaging registering holes in the jig and bench and provided at their lower ends with pivoted detents 16 normally held in inoperative position by a spring pin 18 and adapted to be moved by a key 20 bearing on inclines 162, into operative position to engage the underside of the bench, a spring 14 under the bolt head 13 pressing the jig down on the bench:
Patent GB-360886-A (GB)
IPC: G01J1/42
Filed: 1930-05-08
Abstract: 360,886. Photometric apparatus. GEFFCKEN, H., 62, Steinstrasse, and RICHTER, H., 3, Wiederitzcherstrasse, both in Leipsic, Germany. May 8, 1930, No. 14240. Convention date, May 8, 1929. Void [Published under Sect. 91 of the Acts]. [Class 97 (i).] In a photometer of the photo-electric type provided with a thermionic valve amplifier, a movable diaphragm controlled by the current in the amplifier maintains the quantity of light reaching the photoelectric apparatus sensibly constant, the measuring and controlling operations being effected by the diaphragm. As shown in Fig. 1, the diaphragm 2 moved by the rack-and-pinion mechanism 3 controls the light passing from the opal glass plate 1 through the lens 4 and stop 5 to the photo-electric cell 6. The aperture of the diaphragm may be triangular, or a wedge or a system of Nicols may be employed, and an opal glass cone of which the areas in plane and in elevation are the same may be employed to equalize the light falling on the diaphragm. A suitable thermionic valve circuit is shown in Fig..4. The anode current impulse in the valve 20 reacts on the grid through the secondary 22 of the transformer 21, thereby quenching the valve until the negative charge has leaked away through the resistance 26. The impulse in the secondary 23 quenches the anode current in the valve 18 until the negative charge on the grid has leaked away through the photo-electric cell 19, so that the frequency of the anode current, and consequently of the operation of the relay 29, depends on the illumination of the photo-electric cell 19. As soon as anode current passes in the valve 18 the potential of the point 28 falls, owing to the drop in the resistance 27, and hence the grid potential of the valve 20 diminishes owing to the connection of the condenser 24 through the winding 22, so that the grid takes longer to attain the operating potential and the following charge on the grid 17 is delayed to give the relay 29 time to function. The relay 29 and the resistance 27 are bridged by the condenser 30. The relay produces a reduction of the diaphragm aperture by a certain amount, so that if the diaphragm is continuously opened by means of clockwork, or by current impulses through the valve 20, the illumination is kept constant. The valve 20 and the associated secondary 22 may be replaced by a neon-lamp circuit. The periodic arrangement may be mechanical, while the reaction of the valve 18 upon this member may be effected through a brake relay.
Patent GB-847876-A (GB)
Title: Improvements relating to teat cup assemblies for use with milking machines
Inventor: KINGSTON JONAS ARTHUR
IPC: A01J5/08
Filed: 1958-05-06
Abstract: 847,876. Milking machine teat-cup assembly. GASCOIGNES (READING) Ltd. May 5, 1959 [May 6, 1958], No. 14409/58. Class 84. In a teat cup assembly for use with milking machines, in which a rubber liner is made in two parts, the liner barrel 1 has its lower end reinforced by means of a substantially inextensible or non- stretchable material such as fabric in the form of a band 5 integrally attached either to the outside or the inside of the liner. The associated stem 9 or milk tube part of the liner has an enlargement 8 at its upper end 7 which seats in the barrel 1. Ridges 10 are engageable with the underside of the metal shell 3 for securing the two-part liner within the shell 3 with the required amount of tension in the barrel 1. The barrel 1 is secured to the shell 3 by means of a spring clip 2.
Patent GB-663862-A (GB)
Title: Improvements in or relating to drying and similar vaporising processes and apparatus
Inventor: OGSTON WALTER MACTAVISH
IPC: F26B23/00
Filed: 1948-05-28
Abstract: <PICT:0663862/III/1> In an evaporator for dehydrating solids and for removing vapours from other materials not capable of satisfactory convective circulation, the vapour given off is divided into parts; one part is compressed and then passed to a heat-exchanger where it p condenses, while the other part is passed through the opposite side of the heat-exchanger and is thereby superheated; this superheated vapour is then passed directly through the material in the evaporator.  The vapour-outlet 3 of drying chamber 1 divides into two parallel branches 5, 6.  Branch 5 leads through compressor 7 to condenser 8; whilst branch 6 communicates through supplementary heater 9 with the other side of the condenser, and thence with chamber 1.  In operation, a charge of material is placed in chamber 1 and is initially heated by starting fan 4, and heating the resulting air-flow by means of heater 9.  When steam is evolved, part of it is compressed and condensed in condenser 8, whilst the other part is superheated in condenser 8 and then circulated, by fan 4, through the material in chamber 1. The condensate from condenser 8 may be used to preheat the material fed to chamber 1, or to finally dry the material discharged from chamber 1.  The power for the fan and compressor is advantageously derived from a gas turbine, the exhaust from which is utilized in heater 9, or in the preheater and/or the afterheater. The drying of grass, and of granular material, solid blocks or sheets, is referred to; and the apparatus may be used for subliming solids.
Patent GB-1018436-A (GB)
Title: Improvements in or relating to machine tools
Inventor: FIRTH DONALD
IPC: B24B47/20
Filed: 1963-04-11
Abstract: 1,018,436. Grinding. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 5, 1964 [April 11, 1963], No. 14505/63. Heading B3D. A machine tool comprises a feed mechanism having a control device 9, Fig. 1 (not shown), containing a chamber adapted to receive fluid under pressure so as to expand the device owing to strain thereof below the elastic limit by the internal pressure, the expansion and contraction of the device causing relative movement between a forming tool, such as a grinding wheel, and a workpiece, and means for supplying the chamber with fluid at pressures controlled to give the desired expansion or contraction of the device. The device may consist of a thin-walled cylinder 10 at one end closed by a thick wall 11 and at the other having a heavy flange 12 receiving a closure plate 13, an inlet 15 being provided in the flange. The device 9 may be fixed in the slide 17, Fig. 2 (not shown), of a grinding machine having a grinding wheel 16, the slide being movable along guides by a screw mechanism to provide a coarse feed and the device being expanded and contracted to provide a fine feed by fluid supplied by a pump 20 and controlled by a valve 21, a gauge 22 permitting the pressure of fluid to be determined and hence the amount of fine feed. The response frequency of the device may be varied by using a filler to reduce the space inside the chamber and the device may be operated by a pressure signal from the jet flap stage of an electrohydraulic control valve. The fluid may be arranged to flow through the device, the pressure being controlled by a valve in an outlet conduit from the device, and the temperature of the fluid entering the device may be controlled by a temperature-sensing device at the outlet so that the temperature of the fluid leaving the device is maintained at a constant value. In another embodiment, the chamber is of annular shape and formed by two coaxial cylinders 35, 38, Fig. 4 (not shown), which have strengthening ribs 41 and are secured at their ends to end portions 42, 46 of a frame 33, the portions being interconnected by thin webs 52. The portion 46 carries a mounting for a motor 32 driving a grinding wheel 31. In a further embodiment, the control device 58, Fig. 6 (not shown), is mounted between a frame 157 and an hydraulic ball piston motor 56, the cylinder 55 of which is integral with a thrust bearing 57 and a spindle 54 for the grinding wheel 53. The device may be used in a surface grinder to compensate for variations in accuracy produced by distortion of the machine while under load.
Patent GB-1029328-A (GB)
Title: Catalyst composition for polymerizing alpha-olefins
IPC: C08F4/68
Filed: 1964-04-08
Abstract: a -Olefines having up to 12C are polymerized in the presence of a 3 component catalyst comprising (1) an aluminium sesquihalide of formula R3Al2X3 in which R = C1 to C15 and X is a halogen, (2) a Group IVa-VIa transition metal halide, and (3) an alkali metal salt of an inorganic oxyacid.  The polymerization may be effected with the a -olefine in vapour phase or in a solvent either batchwise or continuously at 0-200 DEG  C. and up to 100 kg./cm2. Specified as olefines are ethylene, propylene, butene-1, pentene-1, decene-1, 3-methylbutene-1, 4-methylpentene-1, 4-methylhexene-1, allylbenzene, styrene, o-methyl styrene, vinyl cyclohexane, butadiene, isoprene and cyclohexadiene. The molecular weight of the polymers may be controlled by including in the polymerization system hydrogen, or halides or alkyl compounds of zinc, cadmium, mercury, or hydrogen halides or alkyl halides.  The polymers may be fractionated by solvent extraction.ALSO:A polymerization catalyst comprises (1) an aluminium sesquihalide (2) a halide of a transition metal of Groups IVa-VIa and (3) an alkali metal salt of an inorganic oxyacid. Component (1) is represented by the general formula R3Al2X3 where R = C1-15 and X = Cl, Sr or I.  Numerous examples are given.  Component (2) is preferably TiCl3 although halides of Zr, V, Cr and Mo are mentioned. With reference to component (3) salts of Ni, Na, K, Rb and Cs are contemplated.  A long list of oxyacids is mentioned.
Patent GB-1268632-A (GB)
Title: Thiosemicarbazones
Inventor: BARRETT PAUL ANTHONY
IPC: A61K31/175
Filed: 1968-03-26
Abstract: 1,268,632. Medicines for treating anaplasmosis. WELLCOME FOUNDATION Ltd. 26 March, 1969 [26 March, 1968], No. 14529/68. Heading A5B. [Also in Division C2] Pharmaceutical preparations effective in the treatment of anaplasmosis and suitable for sterilising the infection with A. marginale contain as active ingredient thiosemicarbazones:- wherein R<SP>1</SP> is Me or Et, R<SP>2</SP> is H or Me, and R<SP>3</SP> and R<SP>4</SP>, which are different from one another are H, Me or Et. Administration is orally or parenterally. The examples describe preparations containing dimethyl sulphoxide, dimethyl acetamide, propylene glycol, lactose, starch, magnesium stearate and polyoxyethylene sorbitan monolaurate in association with active ingredients.
Patent GB-1481678-A (GB)
Title: Coating of boiler tubes
IPC: F22B37/10
Filed: 1976-04-09
Abstract: 1481678 Coated steel tubes EUTECTIC CORP 9 April 1976 [11 April 1975] 14556/76 Heading F2P [Also in Division C7] Steel boiler tubes are coated with a layer of 10-70 wt. per cent of a refractory compound dispersed in 30-90 wt. per cent of a Ni-base, Ni-Cu-base, Fe-base, or Co-base alloy containing 0À3-6À0 wt. per cent Si and/or 0À05-5À0 wt. per cent B, the layer being fused into the tube surface. The refractory compound is selected from the carbides of W, Si, V, Ti, B, Cr, Mo; nitrides of Si, B, Ti; borides of Cr, Mo, W, Ta, V; and silicides of B, Mo, Nb, the preferred compound being WC. Examples are given of suitable matrik alloys. The layer is preferably deposited by flame spraying, the fusing being effected simultaneously or by subsequent treatment with a torch or in a furnace. In the examples, a mix of 60 wt. per cent WC and 40 wt. per cent Ni-Cr-Fe-Si-B alloy is sprayed on to grit-blasted tubes, the tubes in Example 2 being welded to form a panel.
Patent GB-384191-A (GB)
Title: Improvements in building elements, more particularly for use in assembling constructional appliances
IPC: A63H33/10
Filed: 1932-05-23
Abstract: 384,191. Constructional building elements. FAY, M. A. A., 1, Avenue de Beauval, Garches, Seine-et-Oise, France. May 23, 1932, No. 14620. Convention date, July 17, 1931. [Class 132 (iii).] Relates to building elements consisting of plane or curved metal &c. plates each provided at two or more of its edges with a plurality of hinges bent from the plate at equal distances apart so that the plates can be joined together by means of hinge-pins while the hinges of one plate fit in the gaps between the hinges of the adjacent plate. According to the invention, the hinges are bent out of the plate surfaces so far that all the hinges of one edge lie entirely above the one side of the plate. In Figs. 1 and 1a is shown a square plate with offset hinges 2, and with openings 4 over which may be pasted coloured paper. Structures may be built up by meshing the hinges of other plates with the hinges 2 and securing them with a pin. Bent pins are provided for securing plates at an angle. Plates may be provided having the hinged portions offset alternately to opposite sides of the plate as shown in Fig. 20. In Figs. 17 and 18 are shown various plates assembled to form a solid star and a spiral staircase. The Specification as open to inspection under Sect. 91 comprises also the construction from the building elements of habitable houses and sheds. This subject-matter does not appear in the Specification as accepted.
Patent GB-888946-A (GB)
Title: Welding method and apparatus
Inventor: KOTECKI STANLEY F
IPC: B23K9/028
Filed: 1960-04-27
Abstract: 888,946. Welding by fusion. CYCLOMAGIC Inc. April 27, 1960, No. 14679/60. Class 83 (4). In an arc welding device for making a circumferential weld on a cylindrical workpiece, a frame attachable to the workpiece has an annular track for a carriage supporting the welding-torch and rotatable about the workpiece by a motor mounted on the frame. The torch 17 is rotated through 372 degrees and during the overlap the current is reduced. The frame 25 is in two hinged parts which may be secured to one of the pipes 13, 14 to be butt welded. The carriage 16 is in the form of two semi-circular segments of a gear carrying an odd number of rollers 46 which when the segments are connected together run in a groove 47 in the frame 25. The motor 18 on the frame 25 has a pinion 54 engaging the toothed rim of the carriage 16. A gas shielded torch 17 is carried by a bracket on one of the segments. The welding generator, control panel and gas bottle 21 for supplying argon, helium, nitrogen or carbon dioxide to the torch 17 and to the inside of the pipes 13, 14 are carried by a trolley 19. Highfrequency current is used for initiating the welding arc.
Patent GB-580484-A (GB)
Title: Improvements relating to keying arrangements for radio frequencies
IPC: H01P1/12
Filed: 1942-10-20
Abstract: 580,484. Keying radio-frequency currents. STANDARD TELEPHONES & CABLES, Ltd., and WILLOUGHBY, E. O. Oct. 20, 1942, No. 14724. Addition to 580,481. [Class 40 (v)] In a modification of the radio-frequency keying arrangement described in the parent Specification for feeding either of two transmission lines A1, A2 from a circuit T (or for feeding one transmission line from either of two feeding circuits), in which the coupling is effected through reactances C1, C3 which are varied to block one line and unblock the other, the blocking is rendered effective by the provision in the lines of additional reactance elements C, C<1> which form with the reactances C1, C3 potential dividers and are so adjusted that the points A<1>1 and A<1>2 are at zero potential in the blocked condition. In the arrangement shown, the reactances are formed by condensers, and the condensers C1, C3 are each connected in series with a common condenser C2 across a part of the corresponding transmission line. The arrangement may be used for keying in dot-dash rhythm aircraft blind approach transmitters or receivers, or for introducing a phase change by alternatively blocking two paths differing in length. Figure 5 shows diagrammatically a construction of the keying arrangement for supplying aerial feeders A1, A2 alternately in dot-dash rhythm from a feeder T. The condensers Cl, C3 are formed respectively by 90-degree and 270-degree sectors D1, D3 mounted on a shaft S and co-acting fixed polepieces or shoes P1, P3, and the condenser C2 consists of a disc D2 on the same shaft and a fixed poleshoe P2. When the shaft is rotated the capacities between the sectors and poleshoes changes suddenly from a minimum producing the blocking condition to a maximum producing the pass condition, the disc and corresponding polepiece providing a constant high capacity. The capacities C, C<1> completing the potential-divider circuits and neutralizing the stray capacities of the condensers C1, C3 consist of short-circuited twowire line stubs T12, T23 of nearly 180 degrees in length enclosed in casings K3, K4. Matching stubs M1, M2, M3 at the junctions All, T1 and A<1>2 respectively are tuned by short-circuiting devices operated by axially-slidable plates H3, H4, H5 to obtain maximum transfer of energy. Casings K1, K2 surrounding the parts of the shaft S projecting outside the earthed casing K form with the shaft, portions of coaxial line which are tuned by short-circuiting discs L1, L2 slidable on the shaft.
Patent GB-854553-A (GB)
Title: Trifluoromethyl substituted dibenzazepines and dihydrodibenzazepines, and process for the preparation thereof
Filed: 1958-09-11
Abstract: The invention comprises: (a) compounds of the general formula: <FORM:0854553/IV(b)/1> in which Y is CH2CH2 or CH=CH and R1 is hydrogen or trifluoromethyl; (b) the preparation of the compounds in which Y is CH2CH2 by heating appropriate 2,21-diamino-trifluoromethyldibenzyl diphosphates; and (c) the preparation of the compounds in which Y is CH=CH by dehydrogenation of the compounds in which Y is CH2 CH2. 2,21-Diamino-4,41-bistrifluoromethyldibenzyl and 2,21-diamino-4-trifluoromethyldibenzyl are prepared by reducing the corresponding dinitrodibenzyls. 2,21-Dinitro-4,41-bistrifluoromethyldibenzyl is prepared by oxidising 2-nitro-4-trifluoromethyl-toluene with amyl nitrite. 2,21-Dinitro-4-trifluoromethyldibenzyl is prepared by similarly oxidizing a mixture of 2-nitro-4-trifluoromethyltoluene and 2-nitrotoluene.
Patent GB-891122-A (GB)
Title: Machine parts and method for the production thereof
Inventor: ATKINS BERNARD ROY
IPC: F16C33/16
Filed: 1957-05-09
Abstract: 891,122. Piston rings; stuffing-box substitutes. NOBRAC CARBON Ltd. April 28, 1958 [May 9, 1957], No. 14767/57. Classes 122 (1) and 122 (5). [Also in Group XXXIV] A method of producing machine parts, such as sealing rings, consists in the incorporation with a carbon matrix of an additive comprising molybdenum disulphide either by co-precipitation from an aqueous suspension of the substances, or by mechanical insertion of the additive in the carbon base, or by combining the carbon mixture and the additive by heat and pressure. A second additive comprising polytetrafluorethylene may be combined with the first, and a synthetic resin binder may also be incorporated. In one example, a mixture of 40 parts powdered electro-graphite, 20 parts molybdenum disulphide, 20 parts polytetrafluorethylene and 30 parts solid phenol formaldehyde resin is subjected to a pressure of 2 tons per square inch at a temperature of 150‹ C. In another embodiment, a complex structure is prepared by the co-precipitation from an aqueous suspension of substances having the constituents 90 parts graphite powder, 10 parts carbon black, 10 parts molybdenum disulphide and 8.3 parts P.T.F.E. dispersion, the coagulum being subsequently dried and moulded at a pressure of up to 10 tons per square inch at a temperature of 360‹ C. to 400‹ C. Alternatively, a plurality of relatively narrow holes or slots formed in a carbon matrix are filled with intimately admixed P.T.F.E. and molybdenum disulphide. Specification 811,101 is referred to.