baber/WOPTO huggingface dataset:
Patent GB-1385539-A (GB)
Title: Closed fluid cycle system
IPC: F01D19/00
Filed: 1972-10-24
Abstract: 1385539 Power plant THERMO ELECTRON CORP 24 Oct 1972 [22 Dec 1971] 48900/72 Heading F1Q In a vapour power plant employing working fluid and lubricating fluid, a starting process comprises the steps of extracting a mixture of lubricant and working fluid from the plant, supplying the mixture to a pump 46 with a pressure head and operating the pump to circulate the mixture at an elevated pressure, heating the circulated mixture to a temperature where at least the working fluid is boiled and vapourized 6, thereafter separating the lubricant from the working fluid 15, retaining the vapourized working fluid in the plant and returning the separated lubricant to a point 28 in the plant normally isolated from the working fluid during operation. The expander 22 is illustrated as a reciprocating piston expander but a rotary piston or turbine type expander may be employed. In the latter cases the crank-case would be replaced by a lubricant sump. In the regenerator 50 residual heat contained in the expanded gas is used to pre-heat the working fluid passing though the coil 52. The pump 42 is operated by a D.C. motor 80 during the start up process to provide a supply of fluid at sufficient pressure to the boiler feed pump 46. During normal operation, the pump 42 is not operated and fluid entering though the line 40 into the pump 42 exits through the line 44 into the boiler feed pump 46. The working medium may be thiophene, pyridine, trifluoro-ethanol or water. Suitable lubricants are specified.
Patent GB-965629-A (GB)
Title: Improvements in or relating to multiple-jet flowmeters
IPC: G01F1/06
Filed: 1962-12-28
Abstract: 965,629. Flowmeters. PRESNA MECHANIKA NARODNY PODNIK. Dec. 28, 1962 [Dec. 30, 1961], No. 48917/62. Heading F1F. A multiple-jet vane flowmeter comprises a measuring chamber having a lid and partitions arranged either on the inner surface of the lid or on the bottom of said chamber, wherein said partitions extend outwardly from a zone in the centre of said chamber to the walls thereof and are arranged in groups of at least two so that they lie only in places between the inlets 2. As shown, the partitions or ribs 1 have a radial rectilinear character. They may however touch the hub at a tangent or they may be curved. The partitions may be either continuous or interrupted.
Patent GB-1376027-A (GB)
Title: Polymerization process
IPC: C08F36/00
Filed: 1972-10-24
Abstract: 1376027 Nickel containing polymerization catalysts GOODYEAR TIRE & RUBBER CO 24 Oct 1972 [24 Nov 1971] 48954/72 Heading C3P A catalyst for polymerizing butadiene alone or in admixture with other diolefins comprises (a) at least one organometallic compound of the formula AlR 1 R 2 R 3 , R 2 Zn, R 2 Li or (R 2 ) a MgX b  where R 1 R 2  and R 3  are alkyl, aryl, alkaryl or arylalkyl radicals and R may also be hydrogen, fluorine or alkoxy, X is halogen and a and b are mole fractions whose sum equals 2 while a/b is greater than 2 but not infinite (b) at least one nickel compound selected from nickel salts of carboxylic acids, nickel tetracarbonyl or nickel complex compounds and (c) at least one HF complex prepared by complexing HF with a ketone, ester, ether, alcohol or nitrile. The catalyst may be formed in situ or may be preformed in the presence of a conjugated diene. In the examples butadiene is polymerized in benzene or heptane using catalysts in which (a) is triethyl or triisobutyl aluminium, (b) is nickel octanoate, naphthenate, acetylacetonate or tetracarbonyl and (c) is HF complexed with diethyl- or di-n-butyl ether, tetrahydrofuran, benzonitrile, acetone, methanol, ethanol, n or iso propanol, cyclohexanol, or phenol and the polymerization is terminated by the addition of triisopropanolamine and dibutylparocresol. In Examples 6 and 7 the catalyst is preformed in the presence of butadiene or myrcene.
Patent GB-1129228-A (GB)
Title: Vinyl polymers
Inventor: RHUM DAVID
IPC: C08F18/08
Filed: 1967-11-01
Abstract: 1,129,228. Polymers of divinyl carbonates. AIR REDUCTION CO. Inc. 1 Nov., 1967 [1 Nov., 1966], No. 49717/67. Heading C3P. A polymer of a divinyl carbonate of general formula wherein R 1 , R 2  and R 3 , which may be the same or different, are hydrogen, alkyl with up to 20 carbon atoms or aryl may be prepared by polymerizing the monomer at between - 40‹ C. and 150‹ C. in the presence of a free-radical catalyst. The preferred monomers are divinyl carbonate and diisopropenyl carbonate. Preferred catalysts are organic peroxides e.g. benzoyl peroxide and azo compounds e.g. azobis-isobutyronitrile. The polymerization may be carried out in solution in an inert solvent e.g. benzene, acetone, dimethyl acetamide or tetrahydrofuran. In Example VI the polymerization tube is irradiated with ultra-violet light. In Examples IX and X polydivinyl carbonate is saponified with sodium methoxide to give polyvinyl alcohol as disclosed in Specification 1,129,230.
Patent GB-1038598-A (GB)
Title: Pivotable gas offtake hood for metallurgical vessels, for example basic-oxygen converters
IPC: C21C5/40
Filed: 1964-12-09
Abstract: 1,038,598. Converters; waste heat boilers; converter chimneys; removing waste products in industrial processes. BETEILIGUNGSUND PATENTVERWALTUNGSGESELLSCHAFT. Dec. 9, 1964 [Dec. 10, 1963], No. 50136/64. Headings F4A, F4B, F4J and F4X. A gas offtake hood 2, for a Kaldo or like converter 1, is mounted for pivoting about a horizontal axis 3 to remain operationally connected to a following waste-gas cooling and dust removal plant 6 in every pivotal position. The hood 2 is evaporation cooled, its upper part being surrounded by an evaporating drum 12, mounted centrically or eccentrically on the axis 3 rigidly connected to the hood 2, the water inlet and steam outlet pipes 13 passing along the pivotal axis 3 through stuffing box sealing means. Track rings 4 supported on rollers surround the hood which is connected to the following plant 6 by labyrinth seals. Pivoting, aided by counterweight 15, is by electromechanical, pneumatic or hydraulic means. Alternatively the hood may be of a doublewalled construction, cooled by water circulation, all supply and outlet pipes lying on the pivotal axis. The hood 2 may be swung over ladle 11 during tapping to remove the fumes evolved, and when withdrawn to its extreme position (shown in dashed lines) permits the vertical withdrawal of an associated lance 8 by a mechanical or electro-mechanical travelling winch 9. A cover 10 is then used to prevent slag dropping out.
Patent GB-509405-A (GB)
Abstract: 509,405. Cables; joints. STANDARD TELEPHONES & CABLES, Ltd., SCOTT, T. R., and WEBB, J. K. Jan. 11, 1938, No. 860. Drawings to Specification. [Classes 36 and 38 (i)] A cable is insulated along its length or at intervals, e.g. at joints or terminations, with lappings of tapes impregnated with an insulating medium comprising polymerized material applied to the cable in liquid form as stabilized monomeric material or stabilized partially polymerized material which is thereafter allowed to polymerize in situ within the cable or is destabilized and polymerized by heating in situ within the cable at a convenient time.. The monomer may be styrene stabilized as described in Specifications 504,765 and 504,780, [both in Group IV], and plasticized as described in Specification 490,814, [Group IV], or stabilized styrene may be admixed with rubber, with or without a rubber plasticizer such as ceresin wax, or with polyisobutylene ; alternatively, vinyl chloride or acetate or derivatives of acrylic acid may be used. Stabilized styrene may be employed : (a) to impregnate a cable comprising a conductor or conductors lapped with paper preimpregnated with oil, jelly or the substance known under the Registered Trade Mark '' Halowax," the styrene after polymerization forming a plastic mixture with the original impregnant ; (b) to impregnate a lead-sheathed cable built up with impregnated paper, by the method described in Specification 379,704 ; (c) to impregnate a lead-sheathed cable built up with impregnated paper and having a conducting sheath round each core, monomer being expelled from the space between the insulation and sheath or from the strand interstices or both by nitrogen, gas pressure being maintained during polymerization and in service ; (d) to impregnate a similar cable having an extruded layer of lead or polystyrene over the conductor, the gas being in the space between insulation and sheath ; (e) to impregnate a similar cable having an extruded layer of polyisobutylene blended with polystyrene over the core insulation ; (f) in cores as formed in (c), (d) or (e) combined in cables as described in Specification 479,883, the core conductors being connected in parallel in one phase to produce stress grading ; (g) to displace, under pressure, the compound in the strands and in the space between the insulation and sheath or in longitudinal ducts of a cable impregnated with compound ; (h) for pressure feeding at joints to fill voids caused by sheath expansion ; (i) in connection with the invention described in Specification 461,677 ; (j) as a filling for cables having lappings of tape im. pregnated with polyisobutylene. Specifications 449,868, 460,031, 494,694 ; 507,323, [Group IV], and 508,034 also are referred to.
Patent GB-512150-A (GB)
Abstract: 512,150. Rest or motion recorders. WYRILL, R. S. March 2, 1938, No. 6505. [Class 106 (iii)] [Also in Group XX] An in-motion recording instrument comprises a sphere C with a protruding rim O .adapted to rest on an ink ribbon or similar strip N which is superimposed upon a strip of paper M marked in time periods. The strip M is moved over table G by a sprocket wheel H driven by clockwork. When the apparatus is in motion the ball C oscillates laterally .between its guides B and marks the paper M with a. wavy line during the time of motion. Electric light bulbs are connected to contacts in guides B and afford a visual indication of the extent to which the ball rolls. The, apparatus thus will also indicate the amount of its deviation from the horizontal.
Patent GB-1276010-A (GB)
Title: Apparatus for exposing a photoreceptive member
IPC: G03G15/04
Filed: 1969-10-20
Abstract: 1276010 Electro-photographic apparatus RANK XEROX Ltd 20 Oct 1969 [24 Oct 1968] 51357/69 Headings G2A and G2H A rotating photo-conductive drum 19 is exposed line-by-line to a moving original through either a first or a second slit. The first slit is open and is used when the original comprises line images; and the second slit is closed by a screen having parallel opaque and transparent lines and is used when the original comprises a continuous tone image. A projector (22), Fig. 1A (not shown), comprises a carriage (23) which transports an original (24), e.g. a microfilm, past a lamp (LMP-1); and a mirror (28) reflects the image via one of the slits on to the drum. The open slit is defined by the lower ends of arms 41, 43, extending across the width of the drum. When the closed slit is required, a selector (81), Fig. 1 (not shown), operates a circuit (80) to energize a solenoid SOL-1. This rotates a shaft 72 and cams 71 thereon engage a bracket 75 which pivots arms 41, 43 about pins 45 to bring a screen 53 on arm 43 into the optical path. Cams 85 controlled by a solenoid SOL-2 are movable with respect to pins 87, 89 on the arms to vary the spacing between arms 41, 43 and hence vary the width of the first slit.
Patent GB-1444405-A (GB)
Title: Device for use on a film projector for copying films
IPC: G03B1/32
Filed: 1973-11-06
Abstract: 1444405 Copying cinematographic films BRAUN AG 6 Nov 1973 [7 Nov 1972] 51474/73 Headings G2A and G2E A device for use with a cinefilm projector for copying films by a cinefilm camera equipped with a single frame release means comprises a speed changing mechanism which reduces the speed of projection to less than 8 frames per second, a pulse generating switch which is adapted to operate once for each frame advance of the film feed of the projector, and means for transmitting a generated pulse to the cine-camera to operate the single frame release means. The frames are projected on to a screen and photographed by the camera. A shutter 7 and a claw feed mechanism, not shown, for intermittently advancing the film 8, are driven by a motor 5. The speed of framing is reduced to about 5 frames/sec by moving a switch 19 to the left and introducing a resistor 20, which is normally short-circuited, into the current supply circuit for the motor, thus reducing its speed of rotation. The pulse generating switch comprises interacting contact elements 11, 12 which are closed when engaged by a lobe 10 on a cam disc 9 which rotates with the shutter. The contacts are briefly closed once during each revolution, which corresponds to one frame advance, and a pulse is transported along lines 27 to the single frame release means of the camera. The lines 27 are also completed by switch 19 closing contacts 21, 22. When the switch is moved to the right to give projection at normal speeds, i.e. in excess of 8 frames/ second, the circuit of lines 27 is open and the camera cannot be actuated. The lines 27 are also opened and closed by a relay 25 operated by a bistable flip-flop 24 controlled by switch 18 which is actuated by notches in the film F. The notches mark the beginnings and ends of passages to be copied, at first notch causing the relay to be closed, thus allowing the pulses to reach the camera, while a second notch opens the relay.
Patent GB-1187375-A (GB)
Title: Improvements in or relating to Jet Noise Reduction Means
Inventor: HOWE PETER WILLIAM HERBERT
IPC: F02K1/40
Filed: 1966-11-17
Abstract: 1,187,375. Aircraft power plant. MINISTER OF TECHNOLOGY. 24 Jan., 1968 [17 Nov., 1966], No. 51485/66. Heading B7G. [Also in Divisions F1 and H1] The invention relates to a means of suppressing jet noise in which three substantially circular fluid discharge nozzles of equal diameter are spaced apart and have their outlets substantially in the same transverse plane, the axes of the nozzles being substantially parallel and equidistant from each other, the distance between adjacent peripheries of the nozzle outlets being not greater than half the mean diameter of the nozzle outlets. In Fig. 3 three nozzle outlets are shown, each outlet being of diameter d and the peripheries of the nozzles being spaced apart a distance z the spacing equal to 0.3 times the diameter d. In Fig. 4 a gas turbine jet engine 12 is mounted in a pod 10 the pod terminating in three nozzles 15 through which the turbine exhaust gases discharge. In Fig. 5 three jet engines are mounted at the rear of an aircraft fuselage the three nozzles being spaced in accordance with the invention. Other arrangements of engines are described.
Patent GB-1283689-A (GB)
Title: Improvements in or relating to thin film circuit elements
Inventor: LANGER HANS DIETER
IPC: H01L49/02
Filed: 1970-10-30
Abstract: 1283689 Circuit element KOMBINAT KERAMISCHE WERKE HERMSDORF VEB 30 Oct 1970 51681/70 Headings HIM HlR and HIS A thin film circuit element, e.g. capacitor (Fig. 1, not shown) resistor, or conductive paths comprises a conductive or resistive layer of an alloy of tantalum with rhenium (niobium, zirconium, hafnium, titanium, vanadium and molybdenum being used instead or in addition to tantalum). The element may also comprise a layer of tantalum &c. which is alloyed with tungsten and/or rhenium at regions bordering on another layer. A corrosion protective layer of beryllium oxide may be applied.
Patent GB-1440359-A (GB)
Title: Electromagnetic relay assemblies
IPC: H01H50/36
Filed: 1973-11-08
Abstract: 1440359 Post office relays PLESSEY CO Ltd 13 Sept 1974 [8 Nov 1973] 51855/73 Heading H1N A twin relay of the post office type has a common magnetic member comprising two core strips 5, 6, on which coils (not shown) are mounted; the strips extending from opposite sides 8, 9 of a T-shaped piece 1 which with a strip 4 extending (parallel to straps 5, 6) from the crossbar of the T forms the yoke of the relays. Two armatures (not shown) rock on a knife edge 10 of the strip 4 to operate respective leaf-spring contact pile-ups (not shown) mounted at 13 and 14.
Patent GB-1083476-A (GB)
Title: Alkylpolysiloxanes
IPC: C08G77/00
Filed: 1965-12-07
Abstract: A siloxane useful as a paintable release agent and having the formula <FORM:1083476/C3/1> wherein each R is methyl or phenyl and each R1 is a monovalent hydrocarbon radical of at least 2 C atoms and free of aliphatic unsaturation, at least 50% of the R1 radicals being alkyl radicals containing at least 12 C atoms, and a has a value of from 4 to 40, can be made by reacting the corresponding siloxane-containing Si-bonded H atoms (instead of R1 radicals) with the desired alpha-olefin, usually in the presence of a Pt catalyst.  Examples describe the above preparation of trimethylsilyl-terminated siloxanes in which the R radicals are methyl and/or phenyl and the R1 radicals are (1) dodecyl, (2) tetradecyl, (3) hexadecyl, (4)octadecyl, (5) linear C20 hydrocarbon, (6) linear C22 hydrocarbon, (7) b -phenylpropyl and tetradecyl, (8) b -phenylpropyl and dodecyl, (9) ethyl and dodecyl, (10) 4-methylphenyl and dodecyl, (11) phenyl and tetradecyl, (12) butyl and dodecyl, and (13) decyl (for comparative purposes).
Patent GB-1434823-A (GB)
Title: Ice rake control
IPC: F25C5/18
Filed: 1973-11-08
Abstract: 1434823 Spreading material TURBO REFRIGERATING CO 8 Nov 1973 [15 Nov 1972] 51882/73 Heading B8E [Also in Division F4] In an ice making apparatus in which bulk fragmentary ice produced in an ice-generating apparatus 12 is fed by a screw conveyer 16 to a shoot 18 leading into a storage bin 10, the storage bin includes a vertically movable ice raking device 32 for distributing the ice in the bin. The device 32 includes flights 38, Figs. 3, 4 (not shown) secured to endless chains 36 driven by a reversible motor and is movable up and down by cables 60, 62 connected to a winch 66. A control system, Fig. 5 (not shown), is provided for raising the raking device at predetermined intervals for a predetermined period when ice is being supplied to the bin and for simultaneously driving the flights in forward and reverse directions for predetermined times. Ice is removed from the bin by a screw conveyer 20 in a channel 22, a door panel 24 being mounted adjacent the channel and being mounted on raisable pivoted arms 26.
Patent GB-1321560-A (GB)
Title: Enzyme-activated oxidative process for colouring hair
IPC: A61K8/66
Filed: 1971-11-09
Abstract: 1321560 Hair dyeing PROCTER & GAMBLE CO 9 Nov 1971 [9 Nov 1970] 51979/71 Heading D1B Hair is dyed by contacting it with an aqueous solution of from 0.01 ppm to 500 ppm of a peroxidase enzyme, from 0.01% to 1% by weight of hydrogen peroxide and from 0.001% to 6% by weight of an aromatic compound which is a primary oxidation dye precursor as defined optionally in presence of a secondary oxidation dye precursor as defined. The pH of the solution being 4 to 10. Preferably the hair is contacted with the hydrogen peroxide and oxidation dye precursor before the enzyme is added, preferred enzymes being NAD peroxidase, NAD peroxidase, fatty acid peroxidase, cytochrome peroxidase, horseradish peroxidase, soyabean peroxidase, iodinase and glutathione peroxidase. Hair colouring kits comprise individually packaged oxidizing component comprising aqueous hydrogen peroxide and individually packaged oxidation dye component mixed with the required enzyme.
Patent GB-1455305-A (GB)
Title: Response analyzing apparatus
IPC: G09B7/073
Filed: 1973-11-09
Abstract: 1455305 Response analysing apparatus PENTEL KK 9 Nov 1973 [11 Nov 1972 12 April 1973 4 June 1973] 52172/73 Heading G4H Response analysing apparatus comprises a central analyser, Fig. 11, containing a frequency sweep oscillator 21 and switchably connected to a plurality of answering devices, Fig. 10, each comprising a circuit 37 having a unique resonant frequency and means 40a, 40b for altering the resonant frequency to indicate a select channel 39a-39c. As shown the means are diodes, the waveforms for three channels being shown in Figs. 12a-12c, so that, for example, three answers may be given to a question from the analyser. The incoming resonant waveform is fed to positive and negative threshold circuits 42, 43 whose 1/0 outputs are fed to gates 46-49 via an inverter 48 and a flip-flop 44 which is reset once per cycle of the interrogating waveform and which serves to stretch the output from circuit 42. A switch 50 selects a particular channel so that pulses from one of gates 46-49 pass to a total response counter 26, the contents of which may be displayed. Means may also be provided for indicating the answer from each device as it is scanned.
Patent GB-1344653-A (GB)
Title: Cycloaliphatic alcohols and esters thereof
IPC: A61K8/37
Filed: 1971-11-10
Abstract: 1344653 Alcohols and esters L GIVAUDAN & CIE SA 10 Nov 1971 [10 Nov 1970] 52176/71 Heading C2C [Also in Division A5] The invention comprises compounds of the formula where R<SP>1</SP> is H or methyl, R<SP>11</SP> is H or alkanoyl of 1-3 carbon atoms, R<SP>111</SP> is butyl, Z is -C#C-, -CH=CH- or -CH 2 -CH 2 - and n is 0-2. The compounds are prepared by .reacting together compounds of the formula and MZR<SP>1</SP> where M is an alkali metal or MgX where X is halogen, provided that M is an alkali metal only when Z is -C#C-, and alkanoylating or hydrogenating the product if desired.
Patent GB-1100196-A (GB)
Title: Stuffing
IPC: D04H1/64
Filed: 1965-12-10
Abstract: A composition used for bonding a non-woven fabric (see Division D1) comprises: an emulsion containing dimethylpolysiloxane, methylhydrogenpolysiloxane, polysiloxane - polyoxyethylene block copolymer, a copolymer of ethyl acrylate, methyl methacrylate, N-methylolacrylamide and methacrylic acid, and a tin diacetate/zinc octanoate curing catalyst.ALSO:A stuffing material for a pillow is a batting comprising a cross-lapped web of coated, crimped, staple, polyester fibres, aligned essentially parallel to the web axis, the coating on the fibres comprising a cross-linked polysiloxane and an acrylic resin.  The acrylic resin may be self-cross-linking, and curing may be assisted by the presence of a catalyst, e.g. iron naphthenate, zinc octanoate or tin acetate to catalyse the polysiloxane or oxalic acid or ammonium sulphate to catalyse the acrylic resin.  In an example staple fibres of polyethylene terephthalate are crimped in a stuffer-box, garnetted and cross-lapped, the upper surface is sprayed with an emulsion containing dimethylpolysiloxane, methylhydrogenpolysiloxane, polysiloxane-polyoxyethylene block copolymer, a copolymer of ethyl acrylate, methyl methacrylate, N-methylolacrylamide and methacrylic acid, tin diacetate and zinc octanoate.  The batt is then dried in an oven, sprayed on the other side with the same emulsion and again dried.
Patent GB-1458550-A (GB)
Title: Variable venturi carburetor
IPC: F02M9/10
Filed: 1974-12-05
Abstract: 1458550 Spray carburetters FORD MOTOR CO Ltd 5 Dec 1974 [26 Dec 1973] 52583/74 Heading F1H The movable Venturi wall 12 operated by the vacuum servo 26 is movable by a lever 54 having a lost motion connection 52, 68 to the throttle valve 24 to increase the cross-sectional areas of the Venturi and the needle-controlled fuel port in advance of the increase provided by the servo in response to rapid opening of the throttle valve.
Patent GB-1487087-A (GB)
Title: Torch
IPC: H01S5/042
Filed: 1974-12-05
Abstract: 1487087 Torch STANDARD TELEPHONES & CABLES Ltd 5 Dec 1974 52597/74 Heading F4R [Also in Division H1] A battery-powered torch comprises an infrared emitting semi-conductor diode laser in combination with a visual light indicator which gives a visible light emission when the invisible infra-red beam is being emitted. The light indicator arrangement comprises two lightemitting diodes both of which flash on and off when the laser is emitting at full power output, the arrangement being that only one flashes with the laser at reduced power output and neither flashing indicates zero output power. The battery power supply circuit arrangement for the laser and L.E.D.'s is described (see Division H1).