baber/WOPTO huggingface dataset:
Patent GB-284967-A (GB)
Title: Individual power feeds for multiple tapping machines
IPC: B23G1/20
Filed: 1927-03-23
Abstract: 284,967. Imray, O. Y., (National Automatic Tool Co.). March 23, 1927. Tapping. -In multiple. spindle tapping - machines, particularly of the kind described in Specification 282,251, wherein the individual taps are fee. independently of the spindles by which they are rotated, a lead screw L by which the tap T is rotated and fed is mounted within a nut 10 yieldingly held to a stationary plate 14, preferably by means of a spring ring 34 engaging the bottom surface of the plate and a semicircular groove in the nut. The construction is such that should the tap meet with excessive end thrust due to breakage or encountering the bottom of a hole, the rotation of the lead screw L will impart axial movement to the nut and so prevent further axial movement of the tap. A pin 31 attached to the nut engages a hole 33 in the plate 14 and prevents rotation of the nut until it has been withdrawn to the dotted position shown, whereupon it is free to rotate with the lead-screw.
Patent GB-1175080-A (GB)
Title: Improvements in or relating to, Head Harnesses for Rapidly Fitting, Carrying on a User's Head and Rapidly Removing Devices of different types
IPC: A62B18/08
Filed: 1967-06-22
Abstract: 1,175,080. Respiratory masks. INTERTECHNIQUE. 22 June, 1967 [30 June, 1966], No. 28774/67. Heading AST. [Also in Division A3] A head band S for supporting apparatus such as a breathing mask/microphone A comprises flexible extensible tubes (1a) (1b) Fig. 3 (not shown), encased in and connected by a fabric sheath 2 and each coupled at one end via a duct 4 to a compressed-gas distributor 5. The distributor is connected by a tube 6 to a source of gas which may be the oxygen supply to the mask. When a valve control knob 7 is depressed the tubes (1a), (1b) are inflated up to the limit allowed by the fabric sheath (Figs. 2 and 3 not shown) at which point they are substantially rigid and can be easily engaged over the wearer's head. On release of the knob the band grips the wearer's head. In alternative embodiments, an auxiliary band s Fig. 6 (not shown) passes over the top of the head or Fig. 7 (not shown) the fabric web Sa between the tubes (1a), (1b increases in width from front to back of the user's head and supports earphones (E). The latter form of band combined with the auxiliary band s may be incorporated in a fabric helmet (F), Fig. 8 (not shown). Hydraulic means may replace the pneumatic means described.
Patent GB-1133914-A (GB)
Title: A production of syrups of low dextrose equivalent
Inventor: HURST THOMAS LIGHTHALL
IPC: C12P19/14
Filed: 1967-06-22
Abstract: 1,133,914. Production of low dextrose equivalent starch syrups. A. E. STANLEY MFG. CO. 22 June, 1967 [4 July, 1966], No. 28879/67. Heading C2C. A starch conversion syrup that is stable to haze formation and has a dextrose equivalent (D.E.) value from 22-30 is prepared by a process comprising providing an acidified aqueous starch dispersion carrying out acid hydrolysis by heating each portion of the dispersion at substantially the same rate to a temperature at which hydrolysis of the starch is effected, maintaining each portion at the said temperature for a substantially identical period of time to provide a starch hydrolyzate having a dextrose equivalent value of 13-16, cooling each portion of the hydrolyzate at substantially the same rate to a temperature at which substantially no further acid hydrolysis takes place and carrying out enzymic hydrolysis by treating the hydrolyzate with an enzyme preparation whose principal activity is α-amylase for a time sufficient to increase the dextrose equivalent of the hydrolyzate to a value of from 22-30, deactivating the α-amylase, filtering the hydrolyzate and concentrating it to a syrup. The acid hydrolysis process is preferably operated in a continuous manner by introducing a stream of acidified aqueous dispersion continuously at a constant rate into a heating zone where it is heated at a constant rate to the hydrolysis temperature which is maintained until the specified D.E. has been reached.
Patent GB-832359-A (GB)
Title: Receptacle
Inventor: DUGAN-CHAPMAN CHARLES
IPC: B65D25/32
Filed: 1956-09-21
Abstract: 832,359. Handles for receptacles. STEWART PLASTICS Ltd. Aug. 6, 1957 [Sept. 21, 1956; Nov. 6, 1956], Nos. 28968/56 and 33823/56. Class 66. A receptacle 1 has a detachable handle 5, either the handle or the upper part of the receptacle having a projection for entering a hole or socket on the other of these two members, the projection being locked in position by a shoulder formed either on the handle or the receptacle at least one of these members being resilient. The receptacle 1, in the form of a trug, has a reinforced edge 2 formed with pockets 3 having openings 9 into which fit tongues 8 upstanding from plates 6 which extend from plastics handles 5, the plates 6 defining shoulders 7. The tongues 8 may be replaced by headed studs which are inserted into holes formed in the outer walls of the pockets 3, Figs 5 and 6 (not shown). The receptacle may be moulded of polythene or plasticised polyvinyl chloride.
Patent GB-740551-A (GB)
Title: Improvements in or relating to electrical surface heating apparatus
Inventor: FARRIES ALEXANDER GORDON
IPC: B64D15/12
Filed: 1952-11-17
Abstract: 740,551. Heating surfaces by electricity. NAPIER & SON, Ltd., D. Dec. 1, 1953 [Nov. 17, 1952], No. 29004/52. Class 39(3). In a method of producing an electrical surface heater, e.g. for de-icing aircraft parts, in which the surface to be heated has applied to it a layer of electrical insulating material B to which is applied an electric resistance heater F to which is applied an outer layer of electrical insulating material B, each layer B is of thermosetting plastic material, is applied in liquid form, and is intimately associated with at least one layer of textile fabric C which serves to control the thickness of the liquid layer and limit its tendency to flow prior to curing. As applied to the metallic skin A of an aircraft wing the method is carried out as follows : The surface to be protected is lightly abraided and a coating of the plastic B sprayed over the part. A layer of glass cloth C is placed over the plastic B which may now be partially or wholly cured, e.g. by radiant heat or by exposure to the atmosphere. The above sequence is repeated three times, and a fifth plastic layer sprayed over the whole. Electric terminals, as D, are fitted at this stage, and then aluminium is sprayed through a stencil to form the heating element F. Two more plastic layers C<SP>1</SP> are sprayed on, with intervening glass cloth layers H, and finally a plastic layer J is sprayed on and a smooth finish mechanically applied to it. The plastic material used may have a finely divided solid filler mixed with it, and instead of glass cloth, nylon or polythene fabric may be employed. Again, the fabric may be preimpregnated with the plastic material before application to the surface and in this case the, whole of the plastic to be applied to the surface may be applied in this way. The plastic layers may be cured as a whole after the application of the last layer J. Instead of spraying the aluminium F, it may be applied in the form of foil. Specification 703,374 is referred to.
Patent GB-1008793-A (GB)
Title: Improvements in and relating to forced flow vapour generators
IPC: F22B29/02
Filed: 1962-07-27
Abstract: 1,008,793. Critical pressure boilers; regulating steam temperature. SULZER FRERES S.A. July 27, 1962 [July 27, 1961], No. 29028/ 62. Heading F4A. In a supercritical forced-flow, once-through vapour generator having a reheater 58 heated mainly by convection, the reheat temperature is controlled under varying load conditions by controlled recirculation of the working medium through the heating surfaces disposed in a combustion chamber 10 in conjunction with other means which increase the heat available in the combustion gases for the reheater. A feed pump 20 forces the working medium in series through an economizer 18, furnace lining tubes 32 and superheating sections 42, 50 to a turbine 56. At part load a recirculating pump 84 draws part of the working medium from a header 36, being the outlet header for the tubes 32, and delivers it to a mixing vessel 26 where it mixes with the fresh feed from the economizer 18. The effect of recirculation is to increase the average temperature of the medium in the tubes 32 thereby decreasing the heat transfer to these tubes and increasing the heat available in the combustion gases as they pass over the reheater 58. In conjunction with recirculation of working medium flue gases are recirculated by a fan 76, being introduced into the combustion chamber by ducts 80 to provide further control of the reheat temperature. The recirculated gases may be introduced at the base of the chamber 10, Fig. 5 (not shown) or together with the fuel and air, Fig. 6 (not shown). As an alternative to recirculation of the fluegases the positions of the combustion zone may be raised or lowered-by the use of tilting burners, Fig. 3 (not shown) in conjunction with recirculation of working medium. Measurement of the reheat temperature at a point 85 may be used through known control means to regulate the recirculation of working medium and flue gas or the alternative means for positioning the combustion zone in order to control the reheat temperature. Specifications 552,747, 598,141 and 1,008,795 are referred to.
Patent GB-1119366-A (GB)
Title: Improvements in or relating to dies for forming metal bolts and the like
Inventor: SHUTE DONALD HENRY
IPC: B21K1/44
Filed: 1964-07-15
Abstract: 1,119,366. Heading and extruding dies. PADLEY & VENABLES Ltd. 6 July, 1965 [15 July, 1964], No. 29078/64. Headings B3H and B3P. A die for forming bolts and the like, comprises a nib 24 of cemented carbide mounted under radial compression in a steel bolster 20 and having radial escape passages 27 for foreign matter such as air or lubricant, communicating with the atmosphere through longitudinal grooves 28 in the outer surface of the nib. The nib is used for supporting bolts during heading and has an extrusion throat 26 for the bolt shank. A nib support 25, also of cemented carbide, has longitudinal escape grooves 29 communicating with the nib grooves 28 through chamfered edges 30, 31, and with holes 32 in a back plug 23 through chamfered edge 30. The nib may be a shrink fit in the bolster which is made of a high nickel/low carbon steel.
Patent GB-982733-A (GB)
Title: Catalyst system for the copolymerisation of olefins
IPC: C08F4/68
Filed: 1963-07-23
Abstract: Olefins are copolymerized using a catalyst comprising the reaction product of an aluminium alkyl dihalide, vanadium tetrachloride or vanadium oxytrichloride, and a silane of the formula R3R1Si, in which R1 is an alkoxy radical, and R is an alkoxy radical or a hydrocarbon radical. Specified aluminium alkyl dihalides are ethyl, propyl, butyl and isobutyl aluminium dichlorides and their bromine and iodine analogues.  Silanes exemplified are dimethyl dimethoxy, dimethyl diethoxy, dimethyl dipropoxy, diphenyl dimethoxy, diphenyl diethoxy, diphenyl dipropoxy, diphenyl dibutoxy, triphenyl ethoxy, tetraethoxy, tetrapropoxy, tetra-alloxy, tetracyclohexoxy, and tetra-(2-ethyl-n-butoxy) silanes.  In the examples ethylene is copolymerized with propylene or, to produce a sulphur-vulcanizable terpolymer, with propylene and cyclopentadiene.  The copolymerization is effected in the usual inert organic solvents, the catalyst components being added to the solvent before the introduction of the monomers.  The copolymers produced are free of, or contain only traces of, insoluble polymers. Specification 954,133 is referred to.
Patent GB-705170-A (GB)
Title: Device for cleaning windows
IPC: A47L1/06
Filed: 1950-11-29
Abstract: 705,170. Mop holders. McKERRELL, D. G. Nov. 23, 1951 [Nov. 29, 1950], No. 29161/50. Class 61 In a device for cleaning the outside of windows, a wash leather or duster is held between the two toothed, wooden jaws of a crocodile clip, the lower jaw being attached to the top of a wooden handle D. The jaws are connected by a small spring C which maintains them in closed position.
Patent GB-917656-A (GB)
Title: Liquid fuel containing a boron compound
IPC: C10L1/30
Filed: 1959-03-17
Abstract: Gasoline compositions contain up to 6 c.c. per U.S. gallon of tetraethyl lead, an ethylene dihalide scavenging agent and a boron compound of formula <FORM:0917656/III/1> prepared by reacting 2 moles of butane 1,3-diol with 2 moles of boric acid and removing 5 moles of water, in an amount sufficient to provide from 0,001% to less than 0,002% by weight of boron in the fuel.  Specifications 917,651, 917,652, 917,653 and 917,654 also are referred to.
Patent GB-1466720-A (GB)
Title: Test tube device
IPC: B01L3/14
Filed: 1975-06-26
Abstract: 1466720 Splash baffle for tubular vessels R B W LOWNDES 26 June 1975 [2 July 1974] 29201/74 Heading B1X A device 1 for fitting at the open end of a tubular vessel, e.g. a test tube, comprises a canopy-like member 3 containing baffle means 7 (Figure 2, not shown) adapted to absorb the momentum of particles of liquid spurting from the open end of the vessel, channel means 4 to re-direct the liquid into the vessel and attachment means 5 for attaching the device to the vessel.
Patent GB-959327-A (GB)
Title: Improved lubricant compositions
IPC: C08F8/34
Filed: 1961-08-14
Abstract: A lubricating composition comprises a base oil and (a) a phosphosulphurized hydrocarbon further reacted with an alkylene oxide and (b) a non-metal containing oil-soluble copolymer derived from two or more unsaturated co-polymerizable monomers, at least one being an anhydride of an a ,p-unsaturated polycarboxylic acid or a partial ester thereof wherein the remaining acid groups are free. Lists of suitable monomers, and the hydrocarbons which can be phosphosulphurized are given.  The base oil mineral, cutting including emulsified oils, hydraulic fluids and synthetic oils, e.g. oxidized mineral oils, mono-, di- and complex esters, castor oil or fish oils.  In addition, phenthiazine and its alkyl derivatives, a - or b -naphthylamine substituted diphenylamines, alkyl phenols, bisphenols, phosphates and phosphites, sulphurized hydrocarbons and sperm oil, metal dialkyl dithiophosphates, polyisoolefines and degraded rubbery copolymers.
Patent GB-443924-A (GB)
Title: Steam generating systems
IPC: F22B1/18
Filed: 1934-10-13
Abstract: 443,924. Heating steam boilers by waste gases. CLARKSON THIMBLE TUBE BOILER CO., Ltd., and FOUNTAIN, H. J., 613, Australia House, Strand, London. Oct. 13, 1934, No. 29366. [Classes 64 (i) and 123 (ii)] In a plant comprising a fired boiler 1 and a waste heat boiler 7, water is circulated through the boiler 1 by a pump 2 until the water in the boiler 7 has been heated by the exhaust or other waste gases to a predetermined temperature, a valve 15 in the return circulation pipe 4 is then closed and the pump forces water drawn from the boiler 1 through the boiler 7 and back to the boiler 1 through a pipe 13. The valve may be operated under the control of a thermostat 16 in the boiler 7. The furnace is shut down when the waste heat boiler alone raises sufficient quantity of steam. Feedwater may be supplied directly to the circulation pipe 5 should the pump 2 fail. Specification 374,610 is referred to.
Patent GB-1435200-A (GB)
Title: Fire-fighting foam compositions and method of fire-fighting
IPC: A62D1/02
Filed: 1973-06-21
Abstract: 1435200 Fire fighting foam IMPERIAL CHEMICAL INDUSTRIES Ltd 20 May 1974 [21 June 1973] 29448/73 Heading A5A A method of fire fighting comprises applying to a fire a foam produced from a composition comprising an aqueous, fluorine-free foaming agent and a thickening agent, the composition having a highly thixotropic character (defined). The composition may in addition contain a surface active agent containing a terminal fluorocarbon group of at least three C atoms. The thickening agent is preferably a copolymer of acrylic acid and ethyl acrylate. Antifreeze e.g. glycols or mono or tri hydric alcohols and foam extenders e.g. S or O alkyl substituted oxyacids of sulphur may also be present.
Patent GB-865410-A (GB)
Title: New metal complexes of monoazo dyes and their production
IPC: C09B45/14
Filed: 1957-09-19
Abstract: The invention comprises complexes of the formula (I) A-M-B where A is the residue of an azo dye of formula (II):-  <FORM:0865410/IV(c)/1> where R1 is a nitro, carboxylic acid, sulphonic acid, alkylsulphonyl, arylsulphonyl, methoxy or, possibly substituted, carboxylic acid amide or sulphonamide group, R2 is H or a halogen, methyl or methoxy group, R3 is H, halogen or alkyl, X is a carbonyl or sulphonyl group, and Y is an alkyl, phenyl, alkyloxy or, possibly substituted, amino group which may be a member of a heterocyclic ring, M is a metal atom of atomic number 24 to 29 and B is the residue of a coloured or colourless complex-forming compound.  They are made by metallizing a dye of formula:-  <FORM:0865410/IV(c)/2> either alone or in admixture with a coloured compound corresponding to B to provide a 1, 2-complex, or by treating appropriate complexes containing less than 2 dye radicals per metal atom with colourless or coloured complex forming compounds. Chromium and cobalt are preferred metals.  The dyes dye wool, silk, casein wool, leather and poly-amide and -urethane fibres. They colour organic solutions and plastic masses e.g. cellulose esters, varnishes, cellulose ethers and synthetic resins and may be used in the spin-dyeing of artificial fibres such as acetate silk.  Examples are provided of the preparation of the dyes and their use in dyeing processes.  Specifications 272,908, 649,656, 692,073 and 793,136 are referred to.
Patent GB-834084-A (GB)
Title: Purging continuously energized electrostatic precipitator
IPC: B03C3/76
Filed: 1957-09-19
Abstract: 834,084. Electrostatic precipitation. APRA PRECIPITATOR CORPORATION. Sept. 19, 1957 [Nov. 9, 1956], No. 29499/57. Class 39(1). In a sector type electrostatic precipitator with a rotatable gas suction cleaning hood 15 in which the compartments c, e on either side of the compartment d being cleaned are also isolated from the main gas stream, the compartments c, e, are also in communication with the cleaning hood so as to provide some gas flow in these compartments. The object is to prevent flashover when these compartments c and e are under voltage, even though this voltage may be lower than the main voltage. As the hood rotates the voltage is reduced in compartment c, cut off in compartment d and restored at a reduced level in compartment e, as described in Specification 723,568. The sector plate 16 for isolating the compartments has a main slot 17 over compartment d and transition slots 21, 22 over compartments c and e. The cleaning gas flows at a higher velocity than the main gas stream. Specification 684,024 also is referred to.
Patent GB-765074-A (GB)
Title: Improvements in or relating to textile ring-spinning
Inventor: BROWN WILLIAM SAVILLE
IPC: D01H7/60
Filed: 1953-10-26
Abstract: 765,074. Spinning rings. BRITISH CELANESE, Ltd. Oct. 25, 1954 [Oct. 26, 1953], No. 29527/53. Drawings to Specification. Class 120 (2). A textile spinning ring is made throughout from a single oil impermeable material and has roughened bearing surfaces for engagement by the usual traveller. The roughening may be done by acid-etching or sand blasting and may be done before final hardening of the ring and may be followed by a degree of polishing insufficient to destroy the roughened character of the surface. Means, such as a wick laced through holes in the ring, may be provided to supply lubricant to the travellerengaging surfaces of the ring.
Patent GB-383035-A (GB)
Title: Improvements in rotary fans
IPC: F04D29/46
Filed: 1931-10-24
Abstract: 383,035. Screw fans. COLT VENTILATION, Ltd. and KUCKUCK, H., Bush House, Aldwych, London. Oct. 24, 1931, No. 29552. [Class 110 (i).] A screw fan comprises a conical member 4 with radial inlet ports 6, an annular guide member 7 for the intake air and an external wind shield 16 at the front of the fan which leaves an annular discharge 21 around its periphery. The ports 6 are varied by a grid regulator which is hand-operated by a cord or automatically operated by an electromagnet in conjunction with the motor switch.
Patent GB-219921-A (GB)
Title: Improvements in combination metal-cutting and like machine tools
IPC: B23Q37/00
Filed: 1923-11-23
Abstract: .219,921. Krause & Co. Akt.-Ges., E. Aug. 3, 1923, [Convention date]. Combined turning, drilling, milling, and shaping machines.-In a combination metal-cutting machine tool selectively operated milling, drilling, and shaping units are mounted at the headstock end of a lathe, the horizontal shaper ram being guided within a box-like portion of the lathe-bed. The machine is driven from a countershaft which is rotated either by belt gearing from a line shaft or through toothed gears 52 and clutch 56 from an electric motor. A cone puley 54 on the countershaft drives through belt gearing a stepped pulley 2 on the lathe spindle 1 provided with the usual back gears. A sliding member 8 on the lathe-spindle has double clutch teeth which may be engaged alternatively with a wheel 5 to drive the spindle or with a fixed part 10 to hold the spindle against movement. The latter position may be used for cutting grooves, the tool-slide being traversed along the stationary work. The lead-screw is driven from a wheel' 11 on the spindle through gears 12, 47 and reversing bevel gears 48 cn a shaft 15, the latter being connected by change gears to the lead screw. The unidirectional vertical shaft 17 is connected through further bevel gearing 18, shaft 20 and gears 22 to an oscillating link 23 driving the shaper ram 24. A clutch is provided on the shaft 20 for controlling the shaper drive, a safety device ensuring that this drive is not engaged when the table 27 is above the path of the ram. The milling-spindle 29 has an arbor.33 supported in an outboard bearing 50, and is driven through a sliding wheel 31 from a wheel 30 on the lathe spindle. For milling, a continuous table feed is provided by means of gearing, Fig. 4, operated from the bevel gearing 18 through gears 37, shaft 39, gears 40, shaft 42, universal shaft 36 and spiral gears 34. An intermittent table feed for shaping operations is obtained by disengaging one of the gears 37 and driving the shaft 39 by ratchet mechanism 43 actuated through lever mechanism, Fig. 1, from the cross-shaft carrying the oscillating link 23. The drilling-adjunct is driven through a pedal-operated clutch 57 from a cone-pulley 55 on the main countershaft and is slidably mounted on its bracket to vary the overhang of the spindle.
Patent GB-1080043-A (GB)
Title: Improvements in and relating to bulk storage tanks for liquids
Inventor: FFOOKS ROGER CAMBRIDGE
IPC: B63B25/12
Filed: 1965-07-13
Abstract: 1,080,043. Testing for leaks. CONCH INTERNATIONAL METHANE Ltd. July 13, 1965, No. 29629/65. Heading G1S. In a metal storage tank for liquefied gas plates 1, 2 are joined by a weld 3 and a channel shaped section 4 is welded at 5, 6 to the plates 1, 2 along the length of weld 3 to provide a hollow portion which is utilized for fluid-pressure detection of flaws in the welds.
Patent GB-682490-A (GB)
Title: A centring device for centring conduits and the like in well bores
Inventor: BAKER REUBEN CARLTON
IPC: E21B17/10
Filed: 1950-12-04
Abstract: 682,490. Casing centralizers. BAKER OIL TOOLS, Inc. Dec. 4, 1950, No. 29654/50. Class 85 A device A for centring a conduit B or the like in a well bore C comprises a pair of spaced collars 13, 14 slidably mounted on the conduit and interconnected by bowed springs 10 that are welded to the inner ends 15, 16 of the collars. To limit the axial movement of the conduit with respect to the device before the latter is pulled by the former through the bore hole, individual stops 18, 19 are welded to the conduit so as to be disposed adjacent and engageable with the inner ends of the collars. The outward projection of the stops which engage the side edges of the bowed springs to prevent rotation of the device, and the thickness of the bowed springs, are no greater than the thickness of the collars.