baber/WOPTO huggingface dataset:
Patent GB-1423157-A (GB)
Title: Method for producing polycrystalline diamond aggregates of  predetermined shape
IPC: B01J3/06
Filed: 1972-12-14
Abstract: 1423157 Diamond synthesis INSTITUT FIZIKI VYSOKIKH DAVLENY AKADEMII NAUK SSSR 14 Dec 1972 57859/72 Heading C1A Polycrystalline diamond aggregates of predetermined shape are produced by forming a blank of a non-diamond carbonaceous material, e.g. spectral graphite, immersing the blank in a powdered catalyst having a particle size of from 1 to 5 Á, e.g. Group VIII metals of the Periodic System, alloys thereof, carbides and metal carbide systems, subjecting the blank whilst immersed in the catalyst to a pressure of at least 80 kbar and a temperature of at least 1500‹ C. for a period of from 0À1 to 10 seconds to form the diamond aggregate. The blank should have dimensions exceeding the desired dimensions of the polycrystalline diamond aggregate by from 20 to 30% and should preferably be prepared from graphite of density at least 2À00 grams/c.c. and particle size 300- 1000 Š. In the apparatus of Fig. 1, a high temperature reaction cell 1 is disposed in a container 2 of lithographic stone which is placed in a chamber which can be maintained at high temperature and pressure by means of heater 3, 3a and an hydraulic press (not shown). Blank 4 may be in the shape of a nut, an octahedron, screw, draw-plate or two conical vessels. Diamond articles are removed from the reaction cell by means of hydrofluoric and nitric acid treatment.
Patent GB-1205077-A (GB)
Title: Solutions of polycarboxylic acid aminoalkyl esters, and their use in the preparation of foamed polyimides
IPC: C08G73/10
Filed: 1967-12-20
Abstract: 1,205,077. Polycarboxylic aminoalkyl esters. MONSANTO CO. 20 Dec., 1967 [20 Dec., 1966], No. 57931/67. Heading C2C. [Also in Division C3] The invention comprises solutions of esters of formula wherein R is a tetravalent C 6 -C 24  aromatic radical, which is free of olefinic and acetylenic unsaturation and of substituents which react more readily with the amine radical than does a radical containing the group and wherein each pair of carboxylic acid and carboxylic acid ester groups is attached to a pair of immediately consecutive non-tertiary nuclear C atoms, the pairs being separated by at least one C atom; n is 2, 3 or 4, Y and Y<SP>1</SP> are C 1-5  alkyl, the solvent of the solution being a dialkylamino-alkanol HO(CH 2 )n-N(Y)Y<SP>1</SP>. The solutions are used in the preparation of foamed polyimides (see Division C3). They are prepared by reacting an appropriate aromatic tetracarboxylic acid, anhydride or alkylester with an excess of the dialkylamino-alkanol. In examples 3,3<SP>1</SP>,4,4<SP>1</SP> - benzophenone - tetracarboxylic acid anhydride is reacted with an excess of 2-dimethylamino-ethanol.
Patent GB-1422790-A (GB)
Title: Measuring instruments comprising differential amplifiers and light sensors
IPC: G01R17/08
Filed: 1972-12-15
Abstract: 1422790 Indicating force photo-electrically EXAPRECIS SA 15 Dec 1972 [15 Dec 1971] 57944/72 Heading G1A A force applied to a coil 1 is converted to an electrical quantity by sensing the coil movement with a transducer arrangement 4-6 whose output produces an electrical restoring force which is fed to the coil, the voltage fed to the coil being indicative of the applied force. The torque produced by twisting a spindle 11 is transmitted to the coil via a spiral spring 9. The coil is mechanically coupled to a concave screen 4 whose movement obscures to a greater or lesser extent two differentially arranged photo-resistors 5, 6 illuminated by a light source. The output from a differential amplifier 7 is applied to the coil as a restoring force. The apparatus is used to check the accuracy of a measuring instrument, e.g. one in which a given input at 13 ought to produce a given angular deflection a of a pointer 14 attached to a rotatable coil 12. The measuring instrument is coupled to the apparatus as shown, and a potential divider 8, 18 is pre-set so that if a is the "correct" deflection for a given input at 13, then the signal on line 17 equals that at 13. The output from differential amplifier 19 then balances the torque in spring 9 and the whole system assumes a stable position. However, if the deflection a is the "wrong" one for a given input at 13, then the signals in lines 13 and 17 are not equal and a differential amplifier 21 produces an output to illuminate a warning lamp 22.  The apparatus may also be used to check an instrument which indicates linear displacements, Fig. 3 (not shown), in which case the coil spring 9 is replaced by a tension spring (27).
Patent GB-1270690-A (GB)
Title: Chilling solutions for use in the heat hardening of iron and steel and processes utilizing same
IPC: C21D1/60
Filed: 1969-11-28
Abstract: 1,270,690. Quenching composition. HENKEL & CIE G.m.b.H. Nov.28, 1969 [Nov.29, 1968], No.58200/69. Heading C7N. A composition for quenching iron and steel in induction and flame hardening comprises an aqueous solution having a content of 0À1-1À5% by weight of a water soluble amine or alkylolamine and 0À1-1À5% by weight of a monocarboxylic acid or alkoxy acetic acid having 7-11 carbon atoms, the amine or alkyloamine being in stoichiometric excess. Preferably the composition comprises 0À1-0À4% by weight of each component the amine: acid molar ratio being 1À1:1 to 2:1. Specified amines are mono, di, and tri-ethylamines, propyl, and isopropylamines, ethylenediamine, diethylene triamine, 2 amino ethylethyleneglycol, piperidine, morpholine, monoisopropanolamine, diisopropanolamine, tri-isopropanolamine, ethyldiethanolamine and mono, di, and triethanolamines. Specified acids are heptoic, octoic, nonoic, decoic and corresponding branched acids, benzoic, salicyclic and pentyloxy-, hexyloxy-, and octyloxy-acetic acids.
Patent GB-1413978-A (GB)
Title: Fluidized catalytic cracking process
IPC: C10G11/18
Filed: 1972-12-20
Abstract: 1413978 Cracking UNIVERSAL OIL PRODUCTS CO 20 Dec 1972 [27 Dec 1971] 58723/72 Heading C5E In a catalytic cracking process in which a stream of cracked oil and catalyst is discharged from a riser (2) into a reception zone (1) in which there are a dilute phase in the upper portion (3) and a fluidized dense bed in the lower portion (4), and catalyst is discharged from the dense bed, the stream of cracked oil and catalyst is discharged into the dilute phase downwards at a point (12) near the inlet (13) of a cyclone separator but far enough above the dense bed to maintain a low average density (less than 10 -lb./ft.<SP>3</SP>) in the dilute phase.
Patent GB-1418305-A (GB)
Title: 1,3-diphenylpropane derivatives and sweetening agents
IPC: A23L27/30
Filed: 1972-12-20
Abstract: 1418305 1,3-Diphenylpropanone derivatives CHINOIN GYOGYSZER-ES VEGYESZETI TERMEKEK GYAR RT 20 Dec 1972 [20 Dec 1971] 58857/72 Heading C2C The invention comprises compounds of the formula where R represents an alkoxy group (optionally substituted by a carboxyl, alkoxycarbonyl, sulphonic acid, phosphate, dialkylamino or trialkylamino group or one or two hydroxy groups) or a hydroxy group or hydrogen atom; R<SP>1</SP> represents a hydrogen atom or a carboxyl, sulphonic acid or phosphate group, with the proviso that R and R<SP>1</SP> do not both represent hydrogen atoms; and R<SP>2</SP> and R<SP>3</SP>, which may be the same or different, each represent a hydroxyl or alkoxy group and physiologically acceptable salts thereof. Such compounds are prepared by (a) reducing chalcones of corresponding formula or (b) reacting compounds of the above general formula wherein R represents a hydroxyl group and R<SP>1</SP> represents a hydrogen atom in order to transform R into one of the other substituents given above or to introduce the group R<SP>1</SP> and if desired, where R<SP>3</SP> and/or R<SP>3</SP> represent hydroxy groups subjecting them to alkylation. Examples are furnished. The products are sweetening agents.
Patent GB-1219109-A (GB)
Title: Production of organic acids
Inventor: YEOMANS BERTRAM
IPC: C07C53/128
Filed: 1967-12-30
Abstract: 1,219,109. Neo-acids. BP CHEMICALS (U.K.) Ltd. 6 Dec., 1968 [30 Dec., 1967], No. 59271/67. Heading C2C. Neo acids are prepared in a continuous process by reacting an olefine, or an olefinic reacting substance with formic acid in the presence of concentrated sulphuric acid as a catalyst with a contact time of from 0.5 to 60 minutes. A preferred molar ratio of olefine : formic acid : sulphuric acid of 1 : 2 : 6.5 with a sulphuric acid strength of not less than 90% w/w. is used. Tertiary halides, alcohols (primary, secondary or tertiary), tertiary mercaptans and a mixture of an isoparaffin and a hydride acceptor may be the olefinic reacting substance and examples describe the preparation of neotridecanoic acids from butene trimer, and neoacids from 5-methyl indecene-5, n-hexene dimer, dodecenes from ethylene-butene oligomers, and tetradecenes from ethylene-butene oligomers.
Patent GB-1337592-A (GB)
IPC: C08J7/18
Filed: 1970-12-22
Abstract: 1337592 Cross-linking olefin polymers BAYER AG 22 Dec 1970 [3 Jan 1970] 60792/70 Heading C3P Olefin polymers are cross-linked by exposing to ultra violet radiation in the presence of 0À1 to 5 weight per cent, based on the polymer, of a substituted benzoin derivative as sensitizer. A cross-linking agent having at least two olefinically unsaturated groups may also be present. The olefin polymer may be polyethylene, polypropylene, polybutylene, polyisobutylene, an ethylene/vinyl acetate copolymer or a copolymer of ethylene, propylene, butylene and/or isobutylene. The cross-linking agent may be triallyl cyanurate, triallyl phosphate, unsaturated polyesters or polybutadienes. The polymer may be in the form of a film, sheet, hollow body or cable sheath, and cross-linking may be effected at 20‹ to 250‹ C. Examples describe the crosslinking of (1) polyethylene and (2) polyethylene, ethylene/vinyl acetate copolymer and polypropylene in the presence of benzoin isopropyl ether; of (3) polyethylene in the presence of α- hydroxymethyl benzoin, benzoin ethyl ether, pentachlorophenyl desyl sulphide, α-phenyl benzoin, α(#-cyanoethyl)benzoin isopropyl ether and benzoin isopropyl ether; of (4) polyethylene in the presence of polybutadiene and benzoin isopropyl ether, α-hydroxymethyl benzoin, benzoin ethyl ether and α-phenyl benzoin; and of (5) polyethylene in the presence of triallyl cyanurate and benzoin isopropyl ether, α- phenyl benzoin and α(#-cyanoethyl) benzoin isopropyl ether.
Patent GB-734005-A (GB)
Abstract: 734,005. Transfer mechanism. WESTINGER, K., ALTENBURGER, E., and HIRT, O. Jan. 4, 1952 [Jan. 4, 1951], No. 398/52. Class 106 (1). At transfer in a revolution counter or totalizer of a calculating machine, a transfer tooth 5 rocks a lever 14 coupled to a transfer member 32 in one direction or the other according to whether addition or subtraction is being performed and the member is subsequently further displaced by one of a set of staggered cam discs 29 and actuates one or other of a pair of transfer pawls 36, 38 provided for addition and sub. traction respectively to enter a unit in the next higher denomination. The counting wheels 3 of a multiplying machine each carry a cam 4 which is sensed by a lever 9 by which the result totalizer is controlled when multiplication is carried out by shortened methods. The zero point 5 of this cam serves also as the transfer tooth. A pin 21 couples the lever 14 to the member 32 and co-operates with a detent lever 17 to hold the lever 14 in the position to which it is moved at transfer. The member 32 is thus raised or lowered to move either a roller 31 or a roller 30 into the path of the cam 29 which subsequently rocks the member so that a projection 35 thereof engages the pawl 36 or the pawl 38 to rotate the intermediate wheel 11 of the next higher order one step in the additive or subtractive direction. The pawls are pivoted to the free ends of links 37, 39 are loaded by springs 40, and are guided in slots in a frame 42 so as to prevent overthrow. After transfer, the detent lever 17 is rocked by the cam to allow a spring 16 to restore the lever 14.
Patent GB-772077-A (GB)
Abstract: 772,077. Derrick winch control. SCHRODER, A. July 11, 1955, No. 20034/54. Class 78(5). Derrick winch drum 5 is driven from cargo winch drum 2 through gears 1, 3 and is braked by engagement of gear 3 with locking device 10, said derrick drum being carried on its shaft 4 eccentrically by discs 6 operated through levers 9, 8 by handle 7 so that said drum is either driven by gear 1 or engaged with locking device 10 and is never in an uncontrolled intermediate position.
Patent GB-2001867-A (GB)
Title: Twin pack hemodialyzer
IPC: A61M/
Filed: 1978-08-07
Abstract: A hemodialyzer which provides for increased contact between the blood and the dialysate fluid by increasing the blood flow path and increasing the blood velocity through the unit to prevent buildup of fibrin on the semipermeable membrane surfaces, includes two independent stacks (15, 17) of parallel flattened semipermeable membrane tubes disposed within a dialyzer casing. The dialysate fluid flows through the casing within the interior of the flattened tubes, while the blood flows through the casing around and between the semipermeable membrane tubes, the two independent stacks of the tubes being arranged within the casing such that the blood passes through each of the two independent stacks in succession. <IMAGE>
Patent GB-2032580-A (GB)
Title: Flow restrictor device
IPC: F16K1/02
Filed: 1978-10-06
Abstract: In a pillar tap comprising an annular valve 5 which is seated when the tap is closed and is displaced to open the tap, a cylindrical member 9 displaceable with the valve reduces the cross-sectional area of the outlet end of the inlet conduit 2 of the tap in any position of the valve. The member 9 is made of a material unaffected by the liquid flowing through the tap. Such a device is intended to reduce the amount of liquid wastage if a tap is accidentally or deliberately left open. <IMAGE>
Patent GB-2011603-A (GB)
Title: Air Heaters
IPC: F24H3/10
Filed: 1978-10-10
Abstract: An air heater comprises a combustion chamber 21 adapted to accommodate a burner nozzle and having at least one flue outlet, and a heat exchange chamber 22 connected with each flue outlet for the receipt of flue gases therefrom, the combustion chamber and heat exchanger being adapted to be located in an air passage 20 for the passage of air to be heated thereover wherein at least the combustion chamber has a section in the direction of air flow which narrows to an apex angle in and counter to the direction of air flow. The invention has the particular advantage that each heat exchange exchanger is generally wedge- shaped in both the upstream and downstream directions of air flow and thus has a linear ridge defining an apex angle which can be joined by means of a seam weld. This simplifies construction of such a heater very considerably. <IMAGE>
Patent GB-2009070-A (GB)
Title: Propeller Ducts
IPC: B63H5/14
Filed: 1978-11-21
Abstract: A ship's propulsion duct surrounding a propeller is constructed with a main body of glass-reinforced synthetic plastics material, and at least the throat of the duct is protected from the erosive mechanical effects of flow breakdown at the tips of the propeller blades by force absorbing resilient material. The resilient material may be an inset ring of elastomer, or a lining of elastomer secured over the whole inner surface of the duct, or a resilient coating applied to the duct surface by painting. <IMAGE>
Patent GB-2041225-A (GB)
Title: Gas supply system for anaesthesia
IPC: A61M16/10
Filed: 1979-02-05
Abstract: A gas supply system, especially for administering a mixture of oxygen and nitrous oxide obtained from pipelines, comprises two gas sources at different pressures, an apparatus with a first inlet 6 intended for connection to the first gas source 1 and a second inlet 7 for connection to the second source 2, means 12 for mixing the gases in selected proportions, and an outlet 21 for the gas mixture. Between the mixing means 12 and the outlet 21, a cut-out valve 23 is provided which is adapted to prevent the supply of gas mixture to the outlet 21 when the pressure supplied to the first inlet 6 is below a predetermined value. <IMAGE>
Patent GB-2044194-A (GB)
Title: Oscillating pedal drive mechanism
IPC: B62M1/24
Filed: 1979-03-17
Abstract: An oscillating pedal drive mechanism, e.g. for a bicycle, comprises two pedal cranks d, g connected to respective pulley segments f, h carrying respective bevel gear wheel segments in engagement with a bevel gear wheel so that when one pedal crank is pushed down, the other will rise. On the hub of a rear wheel are two free wheels carrying respective pulleys a, b connected by cables to the pulley segments f, h so that oscillation of the pedal cranks causes uni-directional rotation of the rear wheel. Bevel gearing c causes one pulley to reverse when the other is propelling the wheel. The cables and pulleys may be replaced by chains and sprockets. <IMAGE>
Patent GB-2018698-A (GB)
Title: Overhead monorail conveyor
IPC: B61C13/04
Filed: 1979-03-20
Abstract: An overhead monorail conveyor has articulated trolleys (38) with drive wheels (41) and idle wheels (43) movable along an overhead suspended rail (10). The rail has a generally C-shaped cross section with an upper downward-facing channel (12) in which trolley guide rollers (80, 96) move and a lower upwardly convex semi-cylindrical surface (22) on which the grooved drive wheel (41) and the idle wheel (43) of each trolley (38) roll, protected by the central web (16) of the rail. Lateral guide rollers (80, 96) with vertical axes roll within the upper channel of the rail. <IMAGE>
Patent GB-2018259-A (GB)
Title: Making cellulose solutions
IPC: D01F2/00
Filed: 1979-03-30
Abstract: A process for the dissolution of cellulose in organic solvents such as dimethylformamide, dimethylacetamide, and N-methylpyrrolidone comprises contacting the cellulose with an excess of paraformaldehyde and with the solvent at elevated temperatures, preferably higher than 115 DEG C. The amount of paraformaldehyde used preferably corresponds to at least 13 CH3O units per anhydroglucosidic unit of the cellulose. The solution obtained can be rendered stable at room temperature by heating it under stirring to lower the paraformaldehyde content, preferably to not less than 8 CH2O units per anhydroglucosidic unit. Formed bodies of regenerated cellulose can be obtained from said solutions by coagulating them in an aqueous bath, which may be alkaline or may be a mixture of water and the solvent of the solution, or even by evaporating the solvent.
Patent GB-2059495-A (GB)
Title: Adjustable arm for attaching an umbrella to a golf trolley
IPC: A45B11/00
Filed: 1979-04-10
Abstract: The invention relates to an adjustable arm to be attached to a golf trolley for the purpose of holding an umbrella in order that golfer and his equipment may be protected in inclement weather. Adjustment may be provided by means of swivel joints or ratchets or a combination thereof and is necessary in order to fix in position to afford the best protection. The invention allows a golfer to have one hand free while pulling the trolley. When stationary it allows both hands to be free, and to remain under cover allowing for preparation to be made before stepping out to play a shot, and also while recording his score. When the umbrella is not required the invention allows for the umbrella to be furled and adjusted to be alongside the golf bag leaving the equipment accessable while being conveniently ready for immediate reuse.
Patent GB-792024-A (GB)
Abstract: 792,024. Attitude indicating instrument for aircraft. BENDIX AVIATION CORPORATION. Feb. 13, 1956 [Feb. 23, 1955], No. 4468/56. Class 4. An instrument for aircraft to give an indica. tion of pitch and roll attitudes consists of a housing 10, 11 enclosing a conventional movable indicating element 45 associated with a bar 18 which is manually adjustable vertically by a screw and nut mechanism to allow for variations in fore and aft trim of the aircraft. The bar 18 is formed at one end with an ear 19 secured to a collar 20 having an inwardly projecting peg 27 which engages with a spiral groove 22 cut in a shaft 23 located to one side of the housing. The upper end of the rod is bored to accommodate a spigot 24 on a screw 25 located in a bracket 26 of the housing whereby axial backlash on the rod may be taken up. The lower end of the rod is formed with a spigot of reduced diameter which carries a spiral gear 28 and is located in a transverse slot, a portion of the length of the spigot being engaged by a plate spring to urge gear 28 into constant contact with a further spiral gear 29 mounted on the inner extremity of a shaft 30 secured to an adjusting knob 32. The other end of bar 18 is formed with spaced plates 38, 39 which locate a ball 41 for free rolling between guide faces 42 and 40 on the housing. By this means the bar 18 may be adjusted vertically by manual rotation of knob 32 and mechanism is provided within the knob to limit the vertical movement of the bar in both directions. This comprises a fixed peg 60 projecting within an annular recess 50 in the knob, a further peg 59 set in the knob also projecting into the recess. A pair of ring plates 53 and 56 are superimposed within the recess 50 and they are formed respectively with segmental projections 54 and 57 and projection 54 carries a drive pin 58. By this arrangement the knob is limited in its movement, whilst capable of rotation through more than one revolution. Specification 626,635 [Group XX] is referred to.
Patent GB-2052008-A (GB)
Title: Improvements in or relating to methods of and apparatuses for conveying substances
IPC: B65G27/24
Filed: 1979-06-12
Abstract: A method of conveying substances comprises exciting elastic deformations in a support surface (1) bearing the substances (2) by acting thereon with local individual impulses produced by apparatus comprising, electrically conducting elements (4) and electromagnetic inductors (3) connected to an electric discharge storage means (6), and thyristors (5) connected to switching means 12. The support surface may form part of a conveyor, hopper, pipe or the load carrying container of a "tip up" truck. <IMAGE>
Patent GB-2026971-A (GB)
Title: An aerostatic balloon of air type heated by solar energy
IPC: B64B1/58
Filed: 1979-08-03
Abstract: An aerostatic balloon comprises an envelope 1 made of thin plastics sheet material e.g. polyethylene, which is of a dark colour 1, preferably black, and is open at one zone 2 thereof for being partially filed with air and then closed. The heating of the inner air in the envelope 1, after exposure to solar rays, develops a lift exceeding the weight of the balloon, so that the latter will fluctuate in the atmosphere. The balloon may be used for advertising or as a scientific toy. A mass may be hung from it to maintain the balloon in a desired attitude. <IMAGE>
Patent GB-2030566-A (GB)
Title: Preparation of 4,4'-dihydroxy- diphenylsulphone
IPC: C07C315/06
Filed: 1979-09-04
Abstract: The proportion of 4,4'-dihydroxy -diphenylsulphone in a mixture thereof with 2,4'-dihydroxy- diphenylsulphone is increased by heating the mixture with an added acidic catalyst in the presence of an organic solvent in which 4,4'- dihydroxy-diphenylsulphone is less soluble than 2,4'-dihydroxy- diphenylsulphone at the temperature employed. The 4,4'-isomer may be separated as a solid from the resultant slurry.
Patent GB-2059386-A (GB)
Title: Bobbin and bobbin support for a roving frame
IPC: D01H1/04
Filed: 1979-09-28
Abstract: A bobbin for receiving a package of roving on a roving frame. The bobbin 18 has a tubular body having an integral shoulder 20 for engagement with an upwardly facing bobbin support surface 22 on a spindle 10 in the moving frame. <IMAGE>