baber/WOPTO huggingface dataset:
Patent GB-1518356-A (GB)
Title: Breathing apparatus
IPC: A62B7/10
Filed: 1975-12-17
Abstract: 1518356 Respiratory apparatus AGA AB 17 Dec 1975 [14 March 1975] 51434/75 Heading A5T Respiratory apparatus comprises means 10 for connection to the breathing organs of a person, a breathing circuit 9 connected to said means 10 and including a carbon dioxide absorber 13 and a rebreathing chamber 15, a fresh gas supply 1 connected to said circuit 9, and control means for alternately maintaining the circuit 9 closed with respect to the ambient medium until the oxygen concentration in the circulating gas has fallen to a preset value and opening the circuit for exhalation to the ambient medium and injecting of a quantity of fresh gas into the circuit, there being a valve 20 connected between the gas supply 1 and breathing circuit which is actuated in response to increase in ambient pressure to introduce fresh gas into the circuit to compensate for the decrease in volume of the chamber 15 caused by increase in ambient pressure. The chamber 15 may comprise a bellows and fresh gas may be fed into the breathing circuit via a closing bottle 17. The fresh gas flows through a valve 7 which is controlled by movement of the movable wall 18 of the bellows 15 in the manner described in specification 1358303. A valve 14 in the circuit is closed to enable exhalation to the ambient through valve 16. In a modification (Fig. 2 not shown) the valve (35) responsive to ambient pressure comprises a valve seat sealed by a spring- loaded membrane, the valve housing being connected to an activating valve (36) operated by the movable bellows wall 18. The valve 36 is closed at a preset position of wall 18 and on further increase in ambient pressure the membrane is raised from its valve seat to permit fresh gas. to flow into the circuit. When the decrease in volume of bellows 15  is compensated for, valve 36 opens the pressure difference between the valve housing and the breathing circuit is equalised and the spring returns the membrane to seal against the valve seat. In this embodiment the exhaust valve (33) is connected to the bellows through a further valve (32) operated by the movable wall 18.
Patent GB-1086299-A (GB)
Title: Variable amplitude pulse torquer
Inventor: HUGHES JOHN VICTOR
IPC: G01C19/30
Filed: 1965-12-03
Abstract: 1,086,299. Gyroscopic apparatus. UNITED AIRCRAFT CORPORATION. Dec. 3, 1965, No. 51483/65. Heading G1C. A variable amplitude pulse torquer for use with gyroscopes and accelerometers comprises two magnetically coupled coils 2, 6 which in one embodiment may have three and two turns respectively, both the coils passing the same current, and a switching circuit to enable the coils to be connected in series-aiding or series-opposing relationship so that the net turns can be changed from 3 + 2 to 3 - 2 thus giving a pulse amplitude change in the ratio from five to one. The switching is effected using two relays 32, 34 actuated by a solenoid 39. Alternatively electronic gates may be employed. The circuit is fed at terminals 60, 62 with a desired voltage of constant magnitude and which periodically reverses polarity. The net impedance at these terminals is arranged to be purely resistive for all input frequencies by the provision of a compensator network 40, 50, an extra capacitor 52 being switched in by a switch 30 to maintain the compensation when the circuit shown in Fig. 3 is switched over to the seriesopposing state. The power dissipated by the torquer is constant irrespective of which operative state is being employed so that heat generation is constant also. Other embodiments of the invention are also described wherein coils with the same number of turns are used but passing different currents, the coils either having the same or different resistances.
Patent GB-1263452-A (GB)
Title: Improvements in or relating to the manufacture of ice
Inventor: KOMEDERA MIECZYSLAW
IPC: F25C1/04
Filed: 1967-11-13
Abstract: 1,263,452. Ice making. M. K. REFRIGERATION Ltd. 13 Feb., 1969 [13 Nov., 1967], No. 51628/67. Heading F4H. Ice blocks are formed by spraying water from a tank 33 through a perforated screen 37 on to an inverted refrigerated ice tray 25. Unfrozen water falls back into the tank, while harvested ice blocks are intercepted by the screen. During spraying, no water is added to the tank 33 so that spraying terminates when the tank is emptied. In the absence of a spray, the tray temperature falls and a temperature senser at the tray switches on tray heating means, deenergizes the spraying pump 32, and opens a valve 35 to allow water to be supplied to the tank 33 under the control of a float valve 34. When ice has been harvested the tray temperature will rise to a point at which the senser restarts the tray refrigeration, closes the valve 35, and reenergizes the pump 32. In alternative systems, a temperature senser is located so as to be contacted by ice when the tray is full, and the whole operation is controlled by a timer. The tray may be cooled by a compression-condensation refrigeration system and tray heating may be accomplished electrically or by passing hot gas direct from the compressor to the evaporator. The tray may be cast and have evaporator tubes embedded in it or may be of the form shown in Fig. 3 in which evaporator tubes 23 cool a partitioned tray through its base wall 24. The tray walls are notched at 30 to allow air to reach the upper sides of the ice blocks during harvesting thereby promoting free movement of the blocks.
Patent GB-1106198-A (GB)
Title: Improvements in castor wheels
Inventor: DONKIN JOHN
IPC: B60B33/00
Filed: 1965-12-07
Abstract: 1,106,198. Moulding solid tyres. ARCHIBALD KENRICK & SONS Ltd. 31 Oct., 1966 [7 Dec., 1965], No. 51747/65. Heading. B5A. [Also in Division A4] A rubber tyre 44 is bonded by heat and pressure to the rim 18 of a die cast, zinc, base alloy castor wheel, in a two-part mould which provides support for the rim to prevent deformation. The wheel consists of a hollow hub 10 receiving a shaft of a castor body and connected by a dished, ribbed web 20 to the rim 18, which has a frusto-conical outer surface and cylindrical surfaces 28, 30. The wheel is positioned in the stationary mould-part with the surface 30 abutting a cylindrical support surface of the mould, an uncured preform for the tyre is positioned around the rim 18, and the second mould-part having a cylindrical support surface for the surface 28 is moved into position for compression and fusion of the preform. The mould is shaped so that fused rubber flows along the sides of the rim and on to the surfaces 28, 30. A decorative cover is press-fitted into engagement with the surface 28 to hide the finish line of the rubber on that surface, the cover having a hollow boss which facilitates its handling through finishing vats, and passes through an aperture provided therefore in the web.
Patent GB-1303090-A (GB)
IPC: E04G1/14
Filed: 1970-10-30
Abstract: 1303090 Scaffolding UP-RIGHT INC 30 Oct 1970 [14 Nov 1969] 51800/70 Heading E1S A stairway scaffold comprises parallel vertical rectangular end frames 11 and 12, a horizontal platform 25 connected to the upper ends of end frames 11 and 12, a ladder 26 connected to the lower end of frame 11 and the upper end of frame 12, (the preceding may constitute a foldable wheeled scaffold unit of known type), two further end frames 30 having spigot-and-socket connection with the end frames 11 and 12 to form upward continuations thereof, a horizontal brace 70 connecting the end frames 30 on one side of the scaffold, and a diagonal brace 65 extending parallel to the ladder 26 on the other side of the scaffold and connecting end frame 11 to the opposite end frame 30. The braces 65 and 70 serve also as guard rails. A further platform 50 and ladder 60 may be attached between the end frames 30 after assembly of the scaffold. Further end frames, braces, &c may extend the scaffold to any desired height, and modified shorter end frames 40 are used for the top section.
Patent GB-1485373-A (GB)
Title: Antiperspirant composition
Inventor: CALLINGHAM MARTIN
IPC: A61K8/39
Filed: 1973-11-08
Abstract: 1485373 Antiperspirant composition UNILEVER Ltd 6 Nov 1974 [8 Nov 1973] 51815/73 Heading A5B [Also in Division C4] A non-aqueous aerosol antiperspirant composition comprises a solid phase amd a liquid phase, wherein (A) the solid phase comprises from 1% to 99% by weight of the composition of a particulate moisture-absorbent organic polymer which is non-sticky when swollen with water, the polymer having an average particle size of not more than 60 microns and having the ability to absorb at least its own weight of water after deposition of the composition on the skin; and (B) the liquid phase comprises from 99% to 1% by weight of the composition of a propellant. The composition may also contain up to 98% by weight of a carrier. The polymer of (A) may be a carragheenate, a starch, guar gum, locust bean gum, a low methoxyl pectin, agar, furcellaran, xanthan gum, gelatin, hydroxypropyl methyl cellulose, sodium carboxymethyl cellulose, polyvinyl alcohol, polyethylene oxide, polyvinylpyrrolidone, a carboxyvinyl polymer, a copolymer of methyl vinyl ether and maleic anhydride, a linear ionene, mixed calcium and sodium alginate, a crosslinked dextran, modified cellulose, calcium alginate, alginic acid, a pregelatinised starch, a modified starch, a hydrolysed starch polyacrylonitrile graft copolymer, a crosslinked polyacrylamide, a crosslinked polyacrylic acid, a crosslinked polyhydroxyethyl methacrylate, a crosslinked polyvinyl alcohol, a crosslinked polyvinylpyrrolidone, a sulphonated polystyrene crosslinked with divinyl benzene, a quaternised polyvinyl pyridine crosslinked with divinyl benezene, a crosslinked ionene, or a branched ionene. The carrier may be a glycol, ethanol, alkoxylated cetyl alcohol, dibutyl phthalate, diethyl sebacate, diisopropyl adipate, o-ethyl ethyl carboxy methyl phthalate, talc, chalk or starch. Ah astringent metal salt, a germicide and an odour suppressor may also be present.
Patent GB-1286668-A (GB)
Title: Method of improving the tack of rubbers
Inventor: SOLDATOS ANTHONY CONSTANTINE
IPC: C08J3/28
Filed: 1969-10-22
Abstract: 1286668 Treating polymers UNION CARBIDE CORP 22 Oct 1969 51846/69 Heading C3P The tack of compositions comprising a rubber and a tackifier is improved by subjecting the compositions to an electric discharge or, when the rubber is an ethylene/propylene rubber and the tackifier is a polymeric phenolic tackifier, to ionizing or non-ionizing radiation other than natural light. Specified radiations are α, #, γ and X-rays, machine generated electrons, ultraviolet, visible and infra-red light and radiation from dielectric heaters. The electric discharge may be a corona or glow discharge. Specified rubbers are natural rubbers, conjugated diene polymers and copolymers, e.g. with vinyl aromatics, isoolefins, acrylic compounds, vinyl ethers, vinylidene chloride, N-vinyl carbazole and N-vinylpyrrolidone, and particularly ethylene/propylene rubbers. Specified tackifiers are phenol/formaldehyde resins, polyisoprenes, phenolated polyisoprenes, terpene resins and coumarone/indene resins. The compositions may also comprise fillers, e.g. carbon black and clay; lubricants, e.g.stearic acid; plasticizers, e.g. naphthenic oils; and curing agents, e.g. organic peroxides and sulphur. Examples describe the preparation of (A) polyisoprene using lithium butyl as catalyst and the phenolation of the product with (B) p-dodecylphenol, (C) pnonylphenol, (D) phenol, (E) thiophenol and (F) o-t-butylphenol; (G) a novolak resin by condensing p-dodecylphenol and formaldehyde in the presence of sulphonic acid; (H) an isoprene/piperylene copolymer using aluminium trichloride as catalyst; (I) polyisoprene using lithium butyl and (J) the cyclization of the product with p-toluene sulphonic acid; (K) an isoprene/butadiene copolymer using butyl lithium; (L) an isoprene/styrene copolymer; (M) polypiperylene and (N) polybutadiene-1,2; the blending of these tackifiers with compositions of zinc oxide, stearic acid and curing agents together with (A) ethylene/propylene/hexadiene- 1,4 copolymers and naphthenic oil, (B) butyl rubber and chlorosulphonated polyethylene and (C) ethylene/propylene/hexadiene - 1,4, styrene/butadiene-1,3 and naphthenic oil; and the treatment of the compositions with radiation or electric discharge.
Patent GB-1212430-A (GB)
Title: Condenser tube
IPC: F28B1/02
Filed: 1968-11-05
Abstract: 1,212,430. Surface condensers; tubular heat exchange elements. SALINE WATER CONVERSION CORP. 5 Nov., 1968 [13 Nov., 1967], No. 52343/68. Heading F4S. [Also in Division B1] A surface condenser unit 10 for the recovery of fresh water from saline water comprises two condenser regions 22 each containing a plurality of horizontal condenser tubes arranged in two triangular sets viz. 30a-30c and 31a-31c, the tubes in each set being in vertical disalignment to prevent condensate from one tube dripping down on to another tube of the same set. In operation saturated saline water from a reservoir 12 flows down through evaporation channels 20 wherein part of the saline water is vaporized, said vapour being condensed on the surface of the condenser tubes through which liquid coolant 32 from an external source (not shown) is passed; the fresh water formed is collected in troughs 40 at the bottom of U- shaped separator elements 26. Unevaporated saline water is collected in a trough 36. An upper baffle 28 is placed above the tubes to deflect liquid droplets to the sides of the condenser region. An intermediate baffle 34 deflects condensate from the upper tube set to the sides of the lower tube set. As shown the surface of each tube is streamlined in the direction of condensate flow to provide a sharp longitudinal edge or fin on the bottom of the condenser tube. This edge may be serrated as at 50 in Fig. 8. In an alternative form (Fig. 5, not shown) a separate straight ribbon fin may be added to a circular tube. In another form a tube of teardrop-shaped cross-section (Figs. 4 and 7, not shown) may be employed. To increase heat transfer each condenser tube may be provided with internal fins (52, Figs. 6, 7, not shown).
Patent GB-1134840-A (GB)
Title: Improvements in and relating to cooling arrangements for nuclear reactor plants
IPC: F25B9/00
Filed: 1967-11-17
Abstract: 1,134,840. Reactors. GUTEHOFFNUNGSHUTTE STERKRADE A.G. 17 Nov., 1967 [7 Dec., 1966], No. 52431/67. Heading G6C. In a process for removing contaminants from a cooling gas, e.g. helium, of a nuclear reactor plant, the gas is cooled before it enters an adsorption plant including activated charcoal filters by being adiabatically expanded in an expansion motor. A gas-cooled nuclear reactor plant has a relatively slight pressure gradient across the gas circuit if the gas heated in the reactor produces steam via a heat exchanger, and with such plant the energy obtained from adiabatic expansion of the gas is used to drive a compressor in which the expanded gas is recompressed after purification. In spite of the loss of energy incurred, the existing pressure gradient is sufficient to obtain the desired cooling effect if the cooling gas is first cooled in a pre-cooler in contra-flow with purified cooling gas to a temperature of 20 to 25‹ C. above the lowest temperature of the cooling gas within the adsorption plant. The latter temperature may be as low as -220‹ C. Where the pressure gradient across the gas circuit is relatively high, e.g. in a plant including a gas turbine, recompression of the purified gas may not be necessary and the mechanical energy obtained from adiabatic expansion of the cooling gas may be used in some other way.
Patent GB-1399319-A (GB)
Title: Apparatus for rectifying widthwise distorions in textile webs
IPC: D06H3/12
Filed: 1973-11-12
Abstract: 1399319 Correcting widthwise distortions SPINNEREI & WEBEREIEN ZELLSCHONAU AG and H EICKEN 12 Nov 1973 [10 Nov 1972 25 July 1973] 52506/73 Heading B8R [Also in Divisions D1 and G3] Apparatus for rectifying widthwise distortions in a woven or knitted fabric comprises a straightening roller 5 mounted in a frame so as to be rotatable about its own longitudinal axis and which is pivotable to positions in which it extends obliquely to the approach direction of the fabric T for rectifying oblique distortions, the fabric-contacting surface of the roller 5 being adjustable to conform to a selected curve lengthwise of the roller for rectifying arcuate distortions. As shown, the fabric T is guided by rollers 2, 2<SP>1</SP>, 3 and distortions are sensed by sensing heads 4, 4<SP>1</SP> which are movable, through edge sensing and control means, so as to be always opposite the same longitudinal regions of the fabric T. The roller 5 is mounted in a pivoting frame 6 with an adjusting device 7 at an articulation 8. The head 4 transmits signals in accordance with detected distortions to control means (not shown) which operate an hydraulic cylinder 9 to pivot the roller 5 obliquely to the fabric and an hydraulic cylinder 10 to adjust the roller 5 to the desired curve. Additionally, a guide roller 12 may be provided in a pivoting frame 13 and is pivotable to extend obliquely to the fabric T so that part of any oblique distortion can be rectified by the roller 5 and part by the roller 12, the rollers 5, 12 being interconnected by a bellcrank lever 14. The roller 5 may be driven by a motor 11 or, if the apparatus forms part of a treatment machine, e.g. a tenter, synchronously with the rollers of that machine. The roller 12 may run freely, synchronously with the roller 5 or faster or slower than the latter. In a modification (not shown), the cylinders 9, 10 are replaced by electric drives.
Patent GB-1037569-A (GB)
Title: Improvements in continuous casting plant
IPC: B22D11/08
Filed: 1964-12-28
Abstract: 1,037,569. Continuous casting machines. SCHLOEMANN A.G. Dec. 28, 1964 [Jan. 28, 1964], No. 52579/64. Heading B3F. In a continuous casting-plant using a flexible starting bar, the bar is received on or supplied by a device 4, Fig. 1, which is tiltable so that its surface is movable out of the region of the rollers 2 on which the casting is further transported. The tilting may serve to detach the bar from the head which is engaged with the casting. The bar is drawn up the receiving device by a winch 14. In a modification, Fig. 3, the device is in the form of a segment 19 and a lower tiltable portion 22, and the winch for drawing the bar around the segment is driven through gearing from the driving rolls 46. The or each segment 19 may carry a number of starter bars of different sizes and is transversely movable to bring the appropriate bar into line with the feed axis.
Patent GB-1479567-A (GB)
Title: Organosilicon compounds and method for the preparation thereof
IPC: C07F7/18
Filed: 1975-12-23
Abstract: 1479567 Organo-silicon compounds DAI NIPPON PRINTING CO Ltd and SHINETSU CHEMICAL CO Ltd 23 Dec 1975 [28 Dec 1974] 52631/75 Headings C3S and C3T An organosilicon compound having one or more units represented by the average formula wherein R<SP>1</SP> is a monovalent heterocyclic group, a monovalent aromatic group or a nitro-, alkoxy-, or halogen-substituted aromatic group, R<SP>2</SP> is a hydrogen or halogen atom, a cyanogroup or a monovalent hydrocarbon group, R<SP>3</SP> is a divalent hydrocarbon group having 1 to 10 carbon atoms, R<SP>4</SP> is a monovalent hydrocarbon group, X is a hydroxy group or hydrolizable atom or group, a is zero or one, b has a value not exceeding 1, c and d are each zero or have values not exceeding 3 and b+c+d has a value not exceeding 4, may be prepared by a method which comprises reacting a maleic anhydride derivative having the general formula wherein R<SP>1</SP> and R<SP>2</SP> are as previously defined, with an organosilicon compound having one or more units expressed by the average formula wherein R<SP>3</SP>, R<SP>4</SP>, X, a, b, c and d are as previously defined and b + c + d has a value not exceeding 4. The reaction may be carried out using a molar ratio of maleic anhydride derivative to organosilicon compound of from 0À1 to 2 : 1, in the presence of a solvent, e.g. xylene, dimethylformamide, tetrahydrofuran or a mixture of toluene and dimethylformamide and a catalyst, e.g. a tertiary amine or an aliphatic or aromatic acid anhydride. Suitable maleic anhydride derivatives are the phenyl, tolyl, naphthyl and their halogen substituted derivatives, thienyl, furyl or pyridyl group substituted maleic anhydrides, Suitable organosilicon compounds of Formula III are, where.b+c+d is less than 4, organopolysiloxanes containing 3-aminopropyl or N- aminoethyl-3-aminopropyl groups or where b+c+d is equal to 4, are silanes, e.g. 3-aminopropyltriethoxysilane, 3-aminopropylmethyldimethoxysilane or N-aminoethyl-3-aminopropyl trimethoxysilane. Maleimido-group containing compounds having the average general Formula I which also contain alkoxy or hydroxy groups may be modified by dehydration or dealcoholation, e.g. they may be modified by a dealcoholation reaction with hydroxy-terminated dimethyl polysiloxane to give a polysiloxane containing maleimido-group. The maleimido-group containing organosilicon compounds are readily cured and hardened by exposure to light, e.g. ultraviolet light without addition of photosensitizers although organic peroxides may be added to increase the curing velocity.
Patent GB-1459108-A (GB)
Title: Cooling a moving strand of hot material
IPC: C21D9/52
Filed: 1974-12-09
Abstract: 1459108 Cooling rolled products and extrusions SCHLOEMANN-SIEMAG AG 9 Dec 1974 [7 Dec 1973] 53233/74 Headings B3M and B3P A moving strand of hot material, e.g. a hotrolled rod or an extrusion, is cooled by passing it through cooling tubes 1 in one or more water containers 2 to 4, air being blown into the tubes to at least partially expel the water in the tubes. By expelling the water, the resistance offered to the leading end of the strand is reduced. During cooling, the passage of the strand entrains water into the tubes to provide a water/air cooling mixture. The air may be delivered continuously at low pressure into the tubes from pipes 21. The temperature of the water in the containers is controllable by a heater 18. Each tube, Fig. 2, may have peripheral inlet ports 24 for air, or may have a single inclined inlet port. One or two of the containers may be kept free of water to reduce the cooling rate.
Patent GB-1108851-A (GB)
Title: Improvements relating to the formation of sweat soldered joints between telescoped members
IPC: F16L13/08
Filed: 1965-12-16
Abstract: 1,108,851. Soldering. NIBCO Inc. 16 Dec., 1965 [1 Feb., 1965], No. 53483/65. Heading B3R. A device for use in soldering two telescoped members separated by a capillary gap comprises a solder container of thermally insulating material having a first portion for fitting over and around the end of the outer member and an inwardly extending portion defining an aperture concentric with the first portion and through which the inner member can pass and a body of solder encircling the aperture and abutting the inwardly extending portion. Copper pipes 12, 13, Fig. 1, are telescoped into a copper sleeve 14 to leave capillary gaps 17 between the pipes and sleeve and solder carriers 15, 15<1> are arranged at the end of the sleeve. Each carrier comprises a cylindrical wall 19, Fig. 2, to telescope over the end of the sleeve and an annular radial wall 20, the aperture in the radial wall receiving the pipe, and a body 18 of solder is arranged in the container adjacent the walls. The body of solder abuts the end of the sleeve and surrounds the pipe and may have three or more spaced projections 30 to abut the pipe. The carrier may be a friction fit on the sleeve, an adhesive device may be provided to hold the carrier or three clips 31 each with a spring projection 32 may be provided on the carrier. The carrier may be of asbestos paper fibre bonded with glue or of thermosetting resin with clay and asbestos filler and the solder may be of 50-50 lead-tin, 95-5 tin-antimony or silver solder. In operation a torch is applied over the joint area until it is heated to melt the solder which flows into the joint, the torch is removed and then the carrier is removed by crushing or brushing.