baber/WOPTO huggingface dataset:
Patent GB-1051622-A (GB)
IPC: B01D3/06
Abstract: 1,051,622. Flash-type evaporators; distillation of water. AMERICAN MACHINE & FOUNDRY CO. March 15, 1965 [March 23.1964], No. 12181/64. Heading BIB. In a flash evaporator divided into a series of horizontally-adjoining units 10 by vertical partitions 11, each unit comprises an evaporator chamber surrounded by a condenser chamber, the two chambers being formed by inner and outer cylindrical walls 13, 12, respectively, which extend horizontally between the partitions. The inner wall 13 is provided with an opening 14 through which the vapour passes from the evaporator chamber into the condenser chamber and condenses on coils 30, which are supplied with cooling- medium from manifold 28. Heated liquid, e.g. brine, is introduced through pipe 36 into the evaporator chamber of the next unit. The rises between deflectors 17, 18, and partially vaporizes. The mixture of vapour and liquid strikes baffle 19. The vapours flows upwards to opening 14, and the liquid collects at the bottom of the evaporator chamber and flows through an opening 16 in partition 11 into the evaporator chamber of the next unit. The condensate collecting in the bottom of the condenser chambers flows through openings 38 in partitions 11, and is withdrawn from the apparatus through pipe 40. The units may be made of cast aluminium with aluminium tubes 30. The units may also be made of plastic with metal condenser tubes. The apparatus may be operated under vacuum. A modified apparatus is described wherein the wall 12, 13 each have a flat base.
Patent GB-1051647-A (GB)
IPC: C07C59/21
Abstract: 1,051,647. Perfluoropyruvyl fluoride and its dimer. E. I. DU PONT DE NEMOURS & CO. Oct. 14, 1964, No. 41980/64. Heading C2C. The invention comprises CF 3 COCOF and its dimer, of structure and their production by reacting hexafluoropropylene oxide with a carbonyl compound or a sulphoxide at 100-300‹ C. The dimer is also produced by contacting CF 3 COCOF with fluoride ions. The dimer reacts with SF 4  to give Reacting CF 3 COCOF with ammonia gives perfluoropyruvyl amide. Perfluoropyruvyl fluoride and its dimer are useful as soil fumigants and insecticides.
Patent GB-1052466-A (GB)
IPC: B29C65/00
Abstract: 1,052,466. Seaming non-metallic sheet material. BRITISH VISQUEEN Ltd. Oct. 18, 1965 [Oct. 26, 1964], No. 43549/64. Heading B5K. [Also in Division B8] A plastics film surface contaminated with a material in finely divided form is heat sealed to another plastics surface after subjecting the contaminated surface to vibration by ultrasonic energy. If two film surfaces, e.g. of polythene, are to be sealed together then each surface is preferably subjected to ultrasonic vibrations by the application thereof to the other surface opposite to the region to be heat sealed. Suitable apparatus comprises a high-frequency electrical generator, a piezoelectric or a magnetostrictive transducer to convert the highfrequency energy to mechanical vibrations and a tool, comprising a cone or horn-shaped probe, to apply the vibrations to the desired region. The invention is applicable to closing filled bags of polythene which are continuously advanced along a predetermined path to a heat sealing machine. The open mouths of the bags are passed between and in contact with a pair of tools which apply the ultrasonic vibrations thereto. A vacuum nozzle may be provided at the tip of each tool to draw the bag walls slightly apart or separate nozzles may be provided for this purpose on opposite sides of the bag mouth. Alternatively, a plate may be inserted between the bag walls in advance of the probes. A suction device may be provided above the bag mouth to remove particles thrown upwards by the vibrations. In a modification, a reciprocating probe may be inserted into and retracted from the bag mouth to apply the ultrasonic vibrations.
Patent GB-1227115-A (GB)
IPC: B24B23/02
Filed: 1969-02-07
Abstract: 1,227,115. Abrading. J. GEIMER. 7 Feb., 1969 [8 Feb.,1968; 28 Dec., 1968], No. 6658/69. Heading B3D. An electrically-driven hand tool for polishing, grinding or the like comprises a driving motor 1, Fig. 1, arranged with its shaft 2 perpendicular to the axis of a tool member 4. The shaft 2 is supported by bearings 8, 9 in a support 7 and has a bevel gear 5 engaging a ring gear 18 carried by a dish-shaped carrier 6 mounted in bearing 11 in an extension 10 of the support. A tool shaft 3 having its axis perpendicular to the shaft 2 is located in the carrier 6 and supports the tool member 4. The centre of gravity of the motor and practically the entire tool is located on the extension of the axis of the shaft 3. The upper part of the motor is enclosed by a housing part 13 closed by a cover 14 forming a handle. The handle is supported by springs 23 and moves relative to the part 13 when the tool engages a workpiece so that a micro-switch 24 is actuated to start the motor. If the pressure applied to the workpiece is excessive, a warning lamp may be energized. A cowling 22 is previded to protect the tool and a hand strap may have its ends secured to the upper edge of the cowling. In an alternative embodiment, the tool is connected directly to the dish-shaped carrier which is rotatably supported by balls.
Patent GB-1228093-A (GB)
IPC: F04B43/08
Filed: 1969-10-14
Abstract: 1,228,093. Peristaltic pumps. POLYMETRON CORP. Ltd. Oct.14, 1969 [March 21, 1969], No.50330/69. Heading F1F. In a peristaltic pump for conveying liquids in chemical apparatus in which a number of mechanicallyoperated plungers 10 operate in sequence to force the contents of one or more hoses 2 therealong from an inlet to an outlet, a layer 8 of flexible material, e.g., P.T.F.E. reinforced with glass-fibre is stretched in tension between the plungers and the hoses to lengthen the life of the hoses. The layer 8 is secured to the pump body 1 at one end by fixing means 9 and at the other end is secured to a spring 20.
Patent GB-1230403-A (GB)
IPC: H01G7/02
Filed: 1968-04-02
Abstract: 1,230,403. Electrets. THERMO ELECTRON CORP. 2 April, 1968 [15 May, 1967], No. 54356/70. Divided out of 1,230,402. Heading H1M. In the manufacture of an electret, a film 1 of thermoplastic dielectric material is supported within furnace 3 between electrode 5 in contact with one surface and grid electrode 7 spaced from the other surface, the material is heated to a softening temperature and a D.C. potential applied between the electrodes while an ionized gas is provided between film 1 and electrode 7 and, after the material has become charged, it is cooled to room temperature while maintaining the field and ionized gas. As shown the furnace may be heated by induction coil 11 which also ionizes the air or other gas in the furnace. The bulk polarized material may be given a surface charge by increasing the D.C. bias in the presence of ionized gas, or by rubbing the film with material of opposite charge selectivity. The film 1 may be polycarbonate, polysulphone, polyimide, polyhalocarbon, polyphenylene oxide, polyvinylidene oxide or copolymers thereof. The film may have a surface coating of polystyrene, polyhalocarbon or polyvinylidene chloride or copolymer of their monomers to improve the surface charge. Electrode 5 may be a metallized layer. For use in a transducer the formed electret has a metallized layer or is bonded to a metal film.
Patent GB-1231764-A (GB)
IPC: F16D65/18
Filed: 1970-02-04
Abstract: 1,231,764. Fluid brake actuators. BENDIX CORP. 4 Feb., 1970 [7 Feb., 1969], No. 5395/70. Heading F2F. A spring brake actuator comprising a control piston 102 movable in a bore 96 to define a chamber 142 and arranged to actuate a disc brake pad 104 in response to pressure in the chamber has on the other side of a partition 100, a floating piston 110 providing variable volume chambers 114, 116 further defined by a control piston 118 urged inwards by Belleville washers 120, the chambers having inlet ports 92, 94. In operation fluid is supplied to a port 90 to actuate piston 102 and fluid is supplied to ports 92, 94 from accumulators 28, 30, 40, 42 via valves 60, 62 controlled by solenoids 54, 56 controlled by switches 58, 78 the latter being an ignition switch so that the parking brake is applied when a switch is opened. The mechanical brake applicator can be released by opening switch 58 to return the communication of conduits 64, 66 with conduits 68, 70 and thus ports 92, 94 to reset the applicator from within the vehicle cab.
Patent GB-1233047-A (GB)
IPC: B29C44/42
Filed: 1968-06-10
Abstract: 1,233,047. Injection - moulding; foamed articles. BRITISH UNITED SHOE MACHINERY CO. Ltd. 10 June, 1968 [9 June, 1967], No. 27408/68. Heading B5A. [Also in Division C3] Foamed articles may be formed by plasticizing a mixture of moulding material and blowing agent below the foaming temperature of the blowing agent and injecting the mixture through a restriction into a mould cavity so that the mechanical work done on the mixture on passing through the restriction raises its temperature at least to the foaming temperature, the pressure in the cavity being no greater than the foaming pressure of the blowing agent so that it foams on leaving the restriction. The mould cavity may be expandable to facilitate foaming. In one embodiment, a transfer chamber is used to inject material through the restriction. The blowing agent is preferably solid and heat-decomposable.
Patent GB-1233456-A (GB)
IPC: H01J45/00
Filed: 1968-07-05
Abstract: 1,233,456. Thermionic converters. MOTOREN UND TURBINEN UNION MUNCHEN G.m.b.H. 5 July, 1968 [7 July, 1967], No. 32328/68. Heading H1D. A thermionic converter of the " open " type, i.e. emitter and collector are not in a gas-tight cell, for example for use in space vehicles, comprises a plate-like emitter 1 and a collector 3 comprising a number of electrically-conductively-connected strip or wire parts distributed spaced from the emitter, the arrangement being such that in operation in a vacuum heat dissipation is mostly by direct radiation to the surroundings. The strips 3 shown, which are disposed normal to surface of the emitter, 1, may be replaced by a corresponding structure of two or more wires. The emitter surface may have structure which corresponds to the gridlike collector arrangement. Electron capture at the collector may be enhanced by an electric or magnetic field.
Patent GB-1239528-A (GB)
IPC: G06K5/00
Filed: 1969-07-29
Abstract: 1,239,528. Selective signalling; recording systems for business machines. DIGITRONICS CORP. 29 July, 1969, No. 38089/69. Headings G4B and G4H. A record of the operation of a business, e.g. adding, machine having character keys 24-42, Fig. 2, operable to set memory elements 58 arranged in columns on a carriage 46 which is advanced by one column position by operation of any key 24-42, comprises character key switches 114, Fig. 6, connected between a signal recording system and means 96 for generating a pulse on each column movement of the carriage. Signals representing the operated function keys are also recorded. The pulse producing means 96 may comprise a block 134, Fig. 2, associated with a column position indicator 20 and carrying a series of spaced contacts and a continuous contact which are bridged when the carriage has advanced to an intermediate position between adjacent column positions, this intermediate position being reached when the machine is mechanically committed to the entry of a character. In this manner erroneous recording of a character as a result of a dithering keystroke is avoided. The means 96 may alternatively comprise a photo-electric arrangement. When switch means 96 has been closed, the stable state output of one-shot 90 is supplied over contacts 94b, 98b and OR gate 104 to a pulse shaper 88 which introduces a delay to allow for contact bounce before triggering one-shot 90 to produce a negative-going pulse for supply to an encoder via the operated keyswitch 114 and leads 118. The arrangement 156-162 provides a signal on lead 158 for the entry of a digit 9, the corresponding key not having a key switch 114. Operation of a function key causes a mechanism to scan the data stored in memory elements 58, a cam switch 99 being closed when the machine is mechanically committed to per form the selected function. Relay 94 operates to transfer contact 94a to 94c, thereby causing pulse shaper 88 to trigger one-shot 90 to supply a signal to the recorder over lines 212 via the operated function key switch 210. Operation of a " non-add " function key causes the data stored in elements 58 to be printed out without entry into the machine memory, and as, like the digit 9 key, no key switch is provided for this function key, the arrangement 214-220 produces a corresponding signal on lead 214. Special signals may be recorded on operation of two auxiliary keys which operate contact pairs 98a, 98c and 98b, 98d to produce a negative going pulse on lead 224 or 226.
Patent GB-1250325-A (GB)
IPC: G01N33/18
Filed: 1968-12-06
Abstract: 1,250,325. Determination of organic contaminants in aqueous solutions. DOW CHEMICAL CO. 6 Dec., 1968 [7 Dec., 1967], No. 58131/68. Heading B1X. A method for monitoring contamination of an aqueous solution comprises flowing a continuous sample of the aqueous solution to a first reaction zone, mixing in the first reaction zone the continuous sample with an alkali metal hydroxide or ammonium hydroxide in a sufficient proportion to precipitate, as the hydroxide or carbonate, substantially all or any Mg or other cations which form insoluble hydroxides or carbonates which may be present as contaminant in the aqueous solution, removing the precipitate from the new alkaline aqueous solution and flowing the clarified alkaline aqueous solution to a second reaction zone, mixing in this zone the solution with a water soluble permanganate, the residence time of the mixture in this zone, the quantity of permanganate and the temperature being at least sufficient to oxidise substantially all of the biodegradable organic contaminants in the solution, flowing the thus treated aqueous solution from the second reaction zone and measuring photoelectrically the amount of unreacted permanganate remaining in the effluent from the second reaction zone.
Patent GB-1250420-A (GB)
IPC: H01H33/664
Filed: 1969-02-28
Abstract: 1,250,420. Vacuum switch contacts. GENERAL ELECTRIC CO. 28 Feb., 1969 [8 March, 1968], No. 10859/69. Heading H1N. Each disc-shaped contact 17, 18 of a vacuum switch is provided with a contact making button 30 concentric with the outer periphery of the contact and is slotted to provide a plurality of circumferentially extending fingers 33, the slots 32 extending, from spaced points on the periphery, tangentially to the outer edge of the button 30, beyond the point at which they first touch the edge and then turning inwards (36) below the edge of the button. The slots 32 are straight and have at least half the width of the fingers 33, the latter having rounded tips. The contacts 17, 18 may be of copper; the buttons 30 may be integral or separately formed of a copper-bismuth or copper-lead alloy. The buttons are annular and high resistance inserts 40<SP>1</SP> are provided so that the arc is driven on to the fingers 33 where it is rotated by the mangetic forces due to the helical current paths.
Patent GB-1258405-A (GB)
IPC: C23C22/74
Filed: 1968-11-23
Abstract: 1,258,405. Modifying metallic surfaces. ROLLS-ROYCE Ltd. Nov. 21, 1969 [Nov. 23, 1968; Feb. 8, 1969], Nos.55662/68 and 6963/69. Heading C7U. A metal, e.g. steel or Ni-base alloy, surface is coated by applying a composition comprising a phosphate glue, Al powder, which is at least 50% of the composition, and a buffering agent e.g. chromic acid or potassium dichromate and then heating at 500 to 1000‹C, for ¢ to 8 hours in air or an inert gas. The phosphate glue may comprise phospheric acid, aluminium phosphate and water.
Patent GB-1259228-A (GB)
IPC: H01H71/12
Filed: 1970-09-15
Abstract: 1,259,228. Automatic circuit breakers. SQUARE D CO. 15 Sept., 1970 [16 Sept., 1969], No. 43932/70. Heading H1N. An automatic circuit breaker having an armature member 64, a latching member 73 and a magnetic core member 51 as disclosed in Specification 901,913, further has a push button 80 depressible to move the armature and latching member longitudinally while an angled finger portion 68 is guided by the extended portion 70 of the core to also cause pivotal movement of the armature and latching member and disengagement of the latching member from the trip lever 34. The circuit breaker has a bimetallic strip 50 which on sustained overload causes the ambient temperature bimetallic strip 73, acting as the latching member, to release the lever 34, whereas on occurrence of a fault current the magnetic bimetallic armature 64 is attracted to the magnetic core 51, which also releases the lever 34 and opens the contacts.
Patent GB-1259272-A (GB)
IPC: B23Q17/09
Filed: 1967-11-27
Abstract: 1,259,272. Indicating tool wear. NATIONAL RESEARCH DEVELOPMENT CORP. 26 Feb., 1969 [27 Nov., 1967], No. 53948/67. Heading B3T. [Also in Division G1] In a machine tool to measure the tool clearance face wear during cutting action, a constant current is fed between the tool and the workpiece and the resultant tool/workpiece voltage drop monitored. The invention is described with reference to a lathe in which the workpiece is insulated from the chuck and centre and the tool holder is insulated from the lathe. Connection with the workpiece is made through sliprings with a screened cable and filter in the voltmeter circuit to reduce noise signals.
Patent GB-1265252-A (GB)
IPC: G03F9/00
Filed: 1970-07-01
Abstract: 1,265,252. Perforating by drilling. POWERS CHEMICO Inc. 1 July, 1970 [28 Aug., 1969], No. 31909/70. Heading B4B. A device for perforating material, e.g. photographic film, comprises a hollow drill shaft 2 mounted for rotation in a housing 4 and having a cutting end 9 adapted to pass through an air porous means 35 against the action of a spring 26, the arrangement being such that when a suction is applied to the interior of the housing the film is drawn against the porous means and the drill is forced against the film so that as the drill is rotated, the cutting end produces a hole in the film. The air porous means is constituted by a perforated plate 35 which communicates with the interior 7 of the housing 4 and the hollow shaft 2 via passages 50, 51 and 12 respectively; the interior of the housing is connected with a vacuum source 8 via a passage 52. In operation, after the film has been perforated, air passes through the now open end 9 of the drill shaft so that the latter returns under the action of the spring and the cut-out scrap is drawn through the shaft into the suction conduit.
Patent GB-1266459-A (GB)
IPC: B60R3/02
Filed: 1970-07-09
Abstract: 1,266,459. Vehicle step. GENERAL MOTORS CORP. 9 July, 1970 [11 July, 1969], No. 33344/70. Heading B7B. A vehicle step and platform arrangement for a door opening comprises a frame 24 pivotally mounted on the vehicle body and a platform 34 pivoted to the frame so that with the frame in the raised position the platform may be retracted, Fig. 2 (not shown), or extended, Fig. 4, and in the platform retracted position the frame may be swung to a lowered position to form a low level step. The platform 34 is pivoted to the frame 24 by a journalling rod fixed at both ends to plates 26 of the frame and may be manually or power-operated. The platform is held in the retracted position, Fig. 2, by latches (not shown). Furthermore, a step panel 52 is pivotally mounted by pivots 50 to the frame 24. With the frame in the raised position the panel 52 lies level with the vehicle floor opening 20 and is supported by pivots 50, edge 58 resting on notch surfaces 60 of the frame 24, and by bevelled edge 56 resting on complementary bevelled edge 62 of vehicle floor 22. Step panel 52 is biased by springs into engagement with the notches 60. As the frame 24, which may be controlled by an hydraulic actuator 32, is swung to the lowered position, movement of the step and frame continues until support edge 58 contacts support rod 66 at which time step panel 52 forms an intermediate step surface.
Patent GB-1266615-A (GB)
IPC: C09B29/32
Filed: 1969-11-10
Abstract: 1,266,615. Water-insoluble monoazo pigments. FARBWERKE HOECHST A.G. 10 Nov., 1969 [9 Nov., 1968], No. 54896/69. Heading C4P. The invention comprises yellow and orange water-insoluble monoazo pigments of the formula where X is hydrogen or halogen, Y and Z each represents hydrogen, halogen, nitro, alkoxy, aryloxy, alkyl, trifluoromethyl, cyano, carboxylic acid alkyl ester, carboxylic acid amide, carboxylic acid alkyl amide or arylamide, acylamino, sulphonic acid amide or sulphonic acid alkylamide or arylamide, R is a C 1-6  alkyl group and R 1  is hydrogen, halogen, methyl or methoxy, which may be prepared by diazotizing a suitable amine and coupling with a suitable acetylamino benzimidazolone.
Patent GB-1289462-A (GB)
IPC: C08F10/00
Filed: 1970-01-08
Abstract: 1289462 Olefin polymerization MONTECATINI EDISON SpA 8 Jan 1970 [10 Jan 1969] 915/70 Heading C3P Olefins are polymerized utilizing as catalyst a hydride or organometallic compound of a Group I, II or III metal, and a product obtained by contacting a titanium or vanadium oxyhalide, which may be formed in situ from a halide and air or oxygen, with an active anhydrous magnesium or zinc halide support having one or both of the following properties: (a) in the X-ray powder spectrum the diffraction line of highest intensity in the spectrum for the normal, inert halide, is less intense and broadened into a halo; (b) a surface area greater than 3 sq. m./g. The active support may be obtained by grinding an anhydrous zinc or magnesium halide, by decomposition of an organometallic compound of the formula RMgX, or RZnX wherein R is a hydrocarbon and X is halogen, by treating said organometallic compounds with at least a stoichiometric amount of a halogen containing compound, e.g. hydrogen chloride, or by dissolving the normal halide in an organic solvent, partially removing the solvent by evaporation, and completing the removal of the solvent under reduced pressure at a temperature above 100‹ C. In the examples ethylene is polymerized in n-heptane in the presence of H 2  with a catalyst comprising (iso C 4 H 9 ) 3 Al and (a) the reaction product of TiCl 4 , TiOCl 2  and non-active MgCl 2 ; (b) the product obtained by grinding anhydrous MgCl 2  and TiOCl 2 ; (c) the product obtained by grinding TiCl 3 , anhydrous MgCl 2  and air or oxygen; (d) a mixture of TiOCl 2  and the reaction product of C 2 H 5 MgCl in diethyl ether and HCl; (e) the product obtained by grinding TiOBr 2  and non- active MgBr 2 ; and (f) the reaction product of Ti 2 Cl 6 O in n-heptane and MgCl 2 , prepared by evaporating the solvent from a solution of MgCl 2  in methanol and heating at 300‹ C.
Patent GB-1290034-A (GB)
IPC: G03B9/58
Filed: 1970-11-23
Abstract: 1290034 Photographic shutters HATTORI TOKEITEN K K 23 Nov 1970 [16 Dec 1969] 55642/70 Heading G2A A shutter has a mechanical part movable to terminate the exposure, electromagnet means 8 for delaying the movement of the part, and a mechanical device for delaying the movement of the part should the electromagnet fail to do so. As applied to a sliding plate shutter, Fig. 1, a mechanical part 7 holds a closing plate 3 in its initial position by engagement of projections 7a and 3a. Energization of electromagnet 8 attracts armature 7d so as to pivot lever 7 clockwise and to thus allow closing plate to commence moving. If the electromagnet fails to operate, a cam surface 2b on opening plate 2 engages projection 7a to pivot lever 7 clockwise and to allow the closing plate to move. The resulting exposure time is thus determined by the time taken for the plate 2 to move from right to left, e.g. 1/100 th second. In a further embodiment, Fig. 5 a shutter driving plate 57 rotates counter clockwise to open and subsequently close a shutter diaphragm. If the electromagnet 8 receives insufficient current to hold plate 57 in the shutter open position, a flywheel 62 geared to a disc 59 delays the termination of an exposure. The exposure time obtained by the mechanical delay device is set at a valve most frequently used in practice so that extreme error of exposure time is prevented in the event of an electrical fault.