baber/WOPTO huggingface dataset:
Patent GB-1225117-A (GB)
IPC: B01F23/10
Filed: 1967-08-07
Abstract: 1,225,117. Fluid mixing device. BRITISH OXYGEN CO. Ltd. 7 Aug., 1968 [7 Aug., 1967; 14 Sept., 1967], Nos. 36163/67 and 41938/67. Heading BIC. A fluid mixing device comprises a block 1 provided with inlet channels 6, 7 and nozzles 8, 9 arranged to direct jets of different fluid at each other to form a combined jet the direction of flow of which is a function of the mass flow ratio of the first-mentioned jets, an outlet channel 11, and two sensing channels 13, 14 arranged one on each side of the outlet channel, and connectable to a pressure difference measuring device. The fluid mixing device may be used for mixing gases intended for use in flame cutting and electric arc welding, the arrangement being that when the mass flow ratio of the gases flowing through inlet channels 6, 7 is at the desired value, the combined jet is directed through outlet channel 11 and the pressure difference between the fluids in the sensing channel is zero. Deviation of the mass flow ratio from the desired value causes the combined jet to be deflected to one side causing the pressure in the sensing channel on that side to rise. The flow rates of the gases may then be adjusted by an operator to equalise the pressures in the sensing channels, and thereby regulate the composition of the gas mixture flowing through the device. A plurality of the fluid mixing devices may be connected in cascade, the outlet channel of one device forming one of the inlet channels of another device, Fig. 2 (not shown).
Patent GB-1229210-A (GB)
IPC: D06M11/155
Filed: 1968-03-13
Abstract: 1,229,210. Titanium trichloride. ASAHI KASEI KOGYO K.K. 13 March, 1968, No. 56617/67. Heading C1A. [Also in Divisions C3 and D1] Titanium trichloride is produced by reducing titanium tetrachloride in a medium comprising sulphuric or hydrochloric acid and zinc powder, aluminium powder or tin powder and stannous chloride.
Patent GB-1239171-A (GB)
IPC: F01L35/04
Filed: 1969-02-27
Abstract: 1,239,171. Vapour engines. THERMO ELECTRON CORP. Feb. 27, 1969 [March 18, 1968], No. 10556/69. Heading F1M. A power control means for a vapour engine comprises an inlet port in the cylinder to admit working fluid under pressure to the region between the piston 25 and cylinder head, a valve 23 adapted to seat in and close the port and be knocked out of its seat by the piston 25 as the piston nears top dead centre and an adjustable stop 85 mounted in the path followed by the valve when the valve is knocked out of its seat. The arrangement is such that over a range of adjustment of the stop the valve moves up to the stop after being knocked by the piston and rebounds from the stop to the seat without again contacting the piston, the piston having moved away from top dead centre out of range of the valve.
Patent GB-1250537-A (GB)
IPC: G01F23/296
Filed: 1969-03-18
Abstract: 1,250,537. Determining the level of container contents. ENDRESS & HAUSER G.m.b.H. & CO. 18 March, 1969 [10 July, 1968], No. 14233/69. Heading H4D. A device for sensing the level of the contents (liquid or powder) of a container comprises two bars energized by a first transducer such that oscillations in one bar are parallel and opposite to those of the other bar, a second transducer for converting oscillations of the bars to electrical signals, an amplifier receiving these signals and having its output connected to energize the first transducer, and a device connected to the amplifier output to detect damping of the resulting resonant oscillations by contact of the bars with the contents. In the Fig. 1 embodiment the bars, 1, are fixed to a membrane 2 sealing off a housing 3 which is screwed into the container 20 whose contentlevel is to be sensed. The bars are linked by a pair of yokes 4 across which is bolted a pair of stirrups 6. Between each yoke and stirrup is compressed a piezo-electric transducer 8. One transducer 8 produces flexural oscillations of bars 1; the other transducer senses these oscillations. The two yoke/stirrup assemblies are acoustically isolated from each other by a gap and membrane 2 is de-coupled from housing 3 by annular gap 14. The free ends of bars 1 may be apertured (to increase energy damping when immersed in liquid) and/or formed as paddles 15. When the amplifier output drops below a threshold value a relay (which may control means for maintaining the contents level constant) operates. In the Fig. 4 embodiment the two bars, 21, are supported by membrane 22 of housing 23 and also at their upper ends by gripping element 24. The bars carry soft-iron armatures 26 axially disposed in solenoid 27 which is energized by the amplifier output. A piezo-electric pick-up 31 cemented to membrane 22 detects the bar oscillations and drives the amplifier.
Patent GB-1258738-A (GB)
IPC: G03G15/08
Filed: 1970-06-30
Abstract: 1,258,738. Xerographic development. XEROX CORP. June 30, 1970 [July 3, 1969], No.31610/70. Heading G2H. A latent electrostatic image on a xerographic drum 10 is developed by passage of toner/carrier from a bucket conveyer 32 and chute 23 through a development zone between the surface of the drum and a transversely oscillating development electrode 24 connected to electrically biasing means 26 and having pins 25 of insulative or conductive material. The pins may be in staggered rows.
Patent GB-1259199-A (GB)
IPC: C08G59/40
Filed: 1969-03-24
Abstract: 1,259,199. Cellular epoxide polymers. UPJOHN CO. 24 March, 1969 [8 April, 1968], No. 15223/69. Headings C3B and C3C. A cellular polymer comprises the reaction product of (1) a polyisocyanate, (2) a monomeric polyepoxide in amount of 0À70-1À25 equivalents per equivalent of (1), (3) a tertiary amine catalyst which can catalyze the reaction between an isocyanate group and an active hydrogen atom, and (4) a blowing agent. (1) may be a mixture of polymethylene polyphenyl isocyanates. (2) may be (a) a polyglycidyl ether of a polyhydric phenol of formula where R 1  is 0-4 of halogen or C 1-6  alkyl, A is a group of formula or a single covalent bond, and R 2  and R 3  are H, C 1-6  alkyl, C 4-8  cycloalkyl or aryl: (b) the polyglycidyl ether of a novolac resin, or (c) a compound of formula where n is 1-3 and R 8  is an aromatic residue of valency n. (3) may be triethylenediamine. (4) may be water, a halogenated aliphatic hydrocarbon of b.p. - 20‹ C. to 110‹ C. and mixtures thereof. It is believed that the isocyanate and epoxide condense during the formation of the polymers to form a polyoxazolidinone.
Patent GB-1259452-A (GB)
IPC: B28B3/02
Filed: 1968-01-22
Abstract: 1,259,452. Moulding powder. JOSEPH LUCAS (INDUSTRIES) Ltd. 10 Jan., 1969 [22 Jan., 1968], No. 3219/68. Heading B5A. In a punch and die assembly for sintering refractory non-metallic material and of the kind comprising a hollow die 10 and plug 12 mounted on a flat base 11, and a punch 13 which compresses the material 14, a refractory filler is disposed between adjacent flat surfaces of the assembly and an associated machine, i.e. between the base 11 and the adjacent surfaces of the die and plug, by which pressure is applied to transmit loads between portions of those surfaces which are out of direct contact. A spacer 15 may be provided between a machine part and the punch, in which case refractory filler is also located on the top and bottom surfaces of the spacer and on the adjacent surfaces of the punch and machine. The filler may be in paste form and include boron nitride, or alumina, which is left to harden after squeezing out the excess between adjacent surfaces.
Patent GB-1264558-A (GB)
IPC: C07D285/10
Filed: 1969-05-19
Abstract: 1,264,558. Thiadiazoles. CHARLES E. FROSST & CO. 19 May, 1969 [21 April, 1969], No. 25336/69. Heading C2C. S-Compounds of the general Formula (I) (X=Cl, C 1-3  alkyl or alkoxy, Ph, PhCH 2 , morpholino, piperidyl, hydroxypiperidyl, N- (C 1-5  alkyl) piperazinyl, #,#<SP>1</SP>-dihydroxydiethylamino; Y=C 1-5  alkyl or hydroxyalkyl) and their salts are prepared by reacting a compound of the Formula (II)  (R=Cl, OH, OM; M = alkali metal), (a) when R=Cl, with an S-1-(Y-amino)-2,3-dihydroxypropane, an S-dxazolidine of the Formula (III) (Z = residue of ZCHO) or an S-2,2<SP>1</SP>-methylene bis- 3 - (Y - amino) - 1,2 - propanediol or (b) when R=OH or OM, with a 1-(R<SP>4</SP>O)-2-hydroxy-3- (YHN) propane (R<SP>4</SP>=leaving group), a 3-Y-5- (R<SP>4</SP>OCH 2 ) oxazolidine or a 2,3-epoxy-3-(YHN) propane, optionally followed by salt formation. Compounds in which X = #,#<SP>1</SP>-dihydroxydiethylamino can be cyclized to the morpholino derivative. The preparation of typical starting materials of Formula (II) and of each group of reactants used in processes (a) and (b) is described.
Patent GB-1264765-A (GB)
IPC: H01J1/88
Filed: 1970-06-16
Abstract: 1,264,765. Electrode materials and processing. VARIAN ASSOCIATES. 16 June, 1970 [16 June, 1969], No. 29222/70. Heading H1D. A method of fabricating a dispenser cathode for a convergent stream electron gun comprises forming a pattern of crossing grooves 9 in the concave face of a cathode blank defining an array of cells, forming concave facet 3 in the cells and incorporating in the groove pattern a multi-apertured grid structure 8. The structure acts to focus electron beamlets through apertures 7 in a control grid 6 identical with grid structure 8. The cathode blank is of porous W impregnated first with Cu or plastics material which is subsequently removed and replaced by Ba. Grooves 9 forming a hexagonal pattern are milled, chemically etched or electrical discharge machined then circular or hexagonal facets 3 are machined or electrical discharge machined. Grid structure 8 of Mo, coated with C, Ti, Zr, or Ir to prevent electron emission, is supported in but not touching the grooves 9 by a member 11 which acts as a heat sink. Alternatively, the structure 8 is brazed with Mo-Ni or Mo-Ru in the grooves. The cathode forms part of a high convergence gun for use in linear beam tubes, e.g. as described in Specification 1,191,755.
Patent GB-1265632-A (GB)
IPC: B43K7/02
Filed: 1970-11-10
Abstract: 1,265,632. Reservoir pens. GILLETTE CO. 10 Nov., 1970 [24 Nov., 1969], No. 53395/70. Heading B6P. The pressurizing control assembly similar to that of Specification 1,176,193 is modified in that the axially displaceable element 51 has a frusto-conical surface 53 for sealing the air channel defined between the washer 54 and the stem of the element 51 when writing pressure is exerted (Fig. 3), In particular the air channel may be formed by axially and radially extending grooves 58 and 59 formed directly in the element 51, or by axially extending grooves (68, Figs. 8 to 11) formed in the washer 54.
Patent GB-1266561-A (GB)
IPC: C08G18/50
Filed: 1969-03-27
Abstract: 1,266,561. Amine-alkylene oxide condensates. JEFFERSON CHEMICAL CO. Inc. 27 March, 1969 [4 April, 1968], No. 16221/69. Heading C2C. [Also in Division C3] Alkylene oxide condensates of polyamines having the formulµ wherein n is an integer of from 1 to 50, R is hydrogen or a C 1-20  straight or branched chain alkyl group, Z is a C 2-20  straight or branched chain alkanol group, r is 2, 3 or 4, M is a C 1-8  alkylene radical and the sum of x + y + z is from 3 to 50, are prepared by reacting corresponding compounds in which Z represents hydrogen with sufficient appropriate alkylene oxide to introduce the required C 2-20 alkanol groups denoted by Z. In examples (1) a polyoxypropylenediamine having a molecular weight of 400 is propoxylated to give a compound of formula  (2) a polyoxypropylenetriamine having a molecular weight of 260 is propoxylated to give a compound of the formula (3) a polyoxypropylenediamine having a molecular weight of 2000 is propoxylated with 5 mols of propylene oxide; (4) 1À5 mols of tripropyleneglycoldiamine are propoxylated with 6À2 mols of propylene oxide; (5) a polypropyleneglycoldiamine having a molecular weight of 400 is ethoxylated with 4 mols of ethylene oxide. Uses.-For reaction with isocyanates to give flexible, rigid, semi-flexible and elastomeric urethanes. In further Examples (6) and (7) rigid foams are prepared from products of Examples (2) and (4) and a polyaryl polyisocyanate in the presence of a silicone oil and trichlorofluoromethane; and (8) a semi-flexible foam is prepared from the product of Example (3) and a polyaryl polyisocyanate in the presence of water and N,N<SP>1</SP>-dimethylpiperazine.
Patent GB-1266782-A (GB)
IPC: C09D5/18
Filed: 1969-03-04
Abstract: 1,266,782. Expanded silicates; glass mixtures. WASAG CHEMIE A.G. 4 March, 1969 [6 March, 1968], No. 11370/69. Headings C1A and C1M. Fibrous silicate material or finely powdered natural or synthetic silicate material is modified by dissolving in an aqueous metal silicate solution, treating with a gas yielding expanding agent and concentrating by evaporation to dryness. The fibrous material may be mineral wool, glass wool or basalt wool. The finely powdered silicate material which may be dissolved with the assistance of wet grinding, or the process described in Specification 1,224,030, may be basalt powder, slate powder, blast furnace or phosphorus slag. Chemicals may be added to the aqueous silicate solution in order to change the melting point or modify other physical properties of the resulting product, and are preferably compounds of lead or boron, or a compound of aluminium, boron or an alkaline earth metal. The specified expanding agents are alkaline earth metal carbonates, barium or strontium hydroxide, manganese dioxide, lead dioxide or a glycol, glycerol, a saccharide or starch (as described in Specification 947,140). Specification 904,509 is also referred to.
Patent GB-1288980-A (GB)
IPC: C25D7/10
Filed: 1969-12-03
Abstract: 1288980 Electro-plating GLACIER METAL CO Ltd 19 April 1971 [3 Dec 1969] 59017/69 Heading C7B Apparatus for plating a selected face only of each of a plurality of articles, e.g. a row of part cylindrical bearing shells 23, comprises a box (or jig) 10 for insertion in a plating bath and having a restricted opening e.g. slot 13 in its top wall 14, and means for holding the articles with the selected faces towards the opening and applying pressure to the articles to ensure electrical continuity therebetween and a shield for preventing free flow of electrolyte between the space contacting the selected faces and the space contacting the other faces of the articles, e.g. a spring- loaded pivotally mounted parallelogram framework (jig 10) comprising two U-shaped members 18, 19, and a pair of parallel conducting bars 21, 22 for cradling the bearing shells. Preferably each bar is wound with a helical wire or rod 26 or machined with a helical screw-thread. The box may include "robber" bars 30 and have a flash anode 17 insulated from the opening.
Patent GB-1289602-A (GB)
IPC: F16C11/10
Filed: 1970-04-27
Abstract: 1289602 Lockable double hinge; excavator bucket assemblies EIMCO (GREAT BRITAIN) Ltd 19 April 1971 [27 April 1970] 20085/70 Headings E1F E2A and E2F A side tipping bucket of a shovelling machine has two pivot pins 12, 14 attached to its bottom plate 16 for reception in respective slots 6, 8 of a support member 2 forming part of the buckets' cradle 4. A slide 20 is reciprocable in a guide on the support 2 between a first position (as shown) in which it locks the pin 12 in its slot 6, an intermediate position in which it locks both pins in their respective slots and a second position in which it locks the pin 14 in its slot 8. The slide may be reciprocated manually using levers; mechanically from the machine's engine; by an electric motor; or, as shown, by a fluid or hydraulic dual piston and cylinder unit 26 having one piston rod pivoted to the support 2 and the other to the slide 20. The axes of the slots 6, 8 may be parallel or non parallel. The bucket 16 is tipped hydraulically.
Patent GB-1295553-A (GB)
IPC: C08G18/62
Filed: 1971-01-04
Abstract: 1295553 Cross-linkable powder lacquers FARBENFABRIKEN BAYER AG 4 Jan 1971 [27 Jan 1970] 286/71 Headings C3B C3P and C3R The solvent-free melt reaction of a hydroxyl containing resin having a softening point of 50-180‹C. with an alkoxymethyl isocyonate to obtain a cross-linkable powder lacquer is effected in a temperature controlled screw extruder. The resin may be a polyester obtained using excess polyhydric alcohol, a copolymer of a hydroxyalkyl (meth) acrylate or a polyepoxide. Exemplified are (1) phthalic acid/trimethylol propane/2,2 - dimethyl - 1,3 - propane diol/1,2 - propane diol polyester (2) phthalic acid/trimethylol propane/1,6-hexane diol/1,2-propane diol polyester (4) terephthalic acid/ethane diol/ trimethylol propane/4,4<SP>1</SP>-bishydroxycyclohexyl- 2,2-propane polyester (5) as (1) also containing terephthalic acid (6) styrene/hydroxypropylacrylate/butyl acrylate copolymer (7) as (6) replacing butyl by ethyl acrylate (8) as (6) also containing acrylamide (9) bisphenol A-epichlorhydrin polyepoxide (12) polyester prepared fromphthalic anhydride, dimethyl terephthalatc, trimethylol propane, 2,2-dimethyl-1,2-propane diol and 1,2-propane diol. In all cases the melted polymer is reacted with methoxy methyl isocyanate under pressure to prevent the latter vaporizing in an oil heated twin screw extruder. The product is cooled and ground. A tertiary amine or organo-tin catalyst may be present. The polymer is used for electrostatic powder coating followed by curing by heating.
Patent GB-1296659-A (GB)
IPC: C21B7/24
Filed: 1970-06-29
Abstract: 1296659 Observing furnace charges CENTRE DE RECHERCHES NETALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIQUE 29 June 1970 [27 June 1969 11 July 1969 15 July 1969(2) 30 Sept 1969 23 Jan 1970] 10372/72 Heading F4B The operation of a furnace is monitored by inserting a mobile probe into the furnace to receive optical radiation from the interior of the furnace, forming an image representative of the region being examined by an optical system within the probe and observed the image produced. The probe preferably emits radiation and, in one embodiment, Fig. 2, a television camera 2 is mounted within a watercooled probe behind a lens 6 having a scraper 7 and cooled by an inert gas flow. Filament bulbs, lasers or masers 3 emit radiation to be reflected from the charge or walls to be picked up by the camera 2. Cooling air is circulated in the interior of the probe and fins 15 protect its head. The lens may be supported by rings 17 of the form shown in Fig. 3, the recesses 18 of which are aligned with the desiredlight paths. A protective cover for the lens system may be held between two supports 17 or between a support 17 and a resilient support. The system may be protected by two separate transparent sheets, with coolant, which may contain filtering elements, flowing between the sheets. A pipe may be arranged in the probe to deliver a gas, preferably through the fins, on to the charge to give clearer pictures. The head of the probe may be arranged to swivel, and may include wide-angle or telephoto lens, or more than one television camera directed so as to give a stereo serfic picture. The probe may include a light guide or prism and mirror system to transmit the image to a television camera outside the furnace.
Patent GB-1297104-A (GB)
IPC: B05B1/30
Filed: 1970-01-14
Abstract: 1297104 Valves P G TOPLISS 14 Jan 1970 [15 Jan 1969] 1775/70 Heading F2V [Also in Division B2] A shower head attachment (see Division B2) has a valve consisting of a sleeve 7 rotatable by a knob 15 to bring a port 18 into alignment with port 6, thereby permitting water to flow from chamber 3. An 0-ring soal 13 is provided.
Patent GB-1301893-A (GB)
IPC: H02H3/44
Filed: 1970-04-11
Abstract: 1301893 Protective arrangements MOSKOVSKY ORDENA LENINA ENERGETICHESKY INSTITUT 11 April 1970 17298/70 Heading H2K In an arrangement for protecting a D.C. transmission line 2 there is provided a unit 4 in which the duration of the derivative of the line voltage whilst it remains of the same polarity is compared with the duration of a reference signal. The unit 4 produces an output signal when the duration of the voltage derivative is longer than that of the reference signal, when there is a fault at a converting station, this output causes a protective unit 6 to provide signal only on a conductor 10 connected through a time delay circuit to the control devices of the transmission line. If the duration of the voltage derivative is shorter than that of the reference signal due to a short circuit on the line 2, then there is no output from the unit 4 to the unit 6 which provides output signals on both conductors 10 and 11, the conductor 11 being directly connected to the control devices of the line. The unit 4 comprises a differentiator 12, an amplifier 13, a flip-flop circuit 15 and a comparison circuit 17. A delay circuit 19 produces a signal to reset the flip-flop circuit 15 a predetermined time after the recovery of the voltage on the line 2.
Patent GB-1310835-A (GB)
Title: Treatment of chemical cellulosic pulp
IPC: D21C9/10
Filed: 1970-05-28
Abstract: 1310835 Delignification of cellulosic pulp PULP & PAPER RESEARCH INSTITUTE OF CANADA 5 May 1971 [28 May 1970] 25627/70 Headings D2W and D1P Chemical cellulosic pulp is delignified and bleached by distributing gaseous ammonia in the moisture of the pulp which has been comminuted into fiber and fiber aggregates and pressed to a consistency of 15-40% and then heating the pulp in the presence of oxygen at 85-135‹C and 58-174 psig pressure for 10-360 mins. Air, steam or oxygen may be used as carrier for the ammonia gas.
Patent GB-1311436-A (GB)
Title: Preparation of vinyl fluoride
IPC: C07C17/08
Filed: 1971-03-03
Abstract: 1311436 Vinyl fluoride DYNAMIT NOBEL AG 3 March 1971 5954/71 Heading C2C Vinyl fluoride is prepared by vapour-phase reaction of acetylene and hydrogen fluoride using as catalyst a mercury salt supported on activated carbon, the catalyst having a moisture content of not more than 0À05% by wt., the acetylene having a moisture content of not more than 100 mg./Nm<SP>3</SP> and the hydrogen fluoride having a moisture content of not more than 100 mg./kg.
Patent GB-1321875-A (GB)
Title: Process for the production of biological active principles from  animal or vegetable material containing phospholipids
IPC: A61K31/685
Filed: 1970-10-09
Abstract: 1321875 Extracting active principles STIFTUNG ONOPHRIO 9 Oct 1970 48146/70 Heading A5B A biologically active material having a stimulating influence on cell growth and processes is obtained from phospholipid-containing animal or vegetable tissue by: (i) comminuting or homogenising, (ii) extracting with an acidified alcohol, (iii) precipitating protein from the extract with alkali, (iv) removing the precipitate, (v) concentrating the filtrate to a paste, (vi) extracting the paste successively with: (a) an aliphatic ketone, e.g. acetone, (b) an aliphatic alcohol, e.g. MeOH or an aliphatic chlorohydrocarbon and, optionally, (c) an aromatic hydrocarbon, e.g. benzene and (vii) separating the component-(b)-soluble fraction into a plurality of fractions (4 are disclosed) by selective adsorption each having biological activity. Alternatively, the source material may be converted to a dry powder, formed into a paste with aqueous acid, extracted with chloroform, dioxane or trichlorethylene, and the extract concentrated to a paste which is subjected to steps (vi) and (vii) above.
Patent GB-1342419-A (GB)
Title: Internal combustion engine cooling liqud level alarm
IPC: G01F23/38
Filed: 1972-07-18
Abstract: 1342419 Liquid level indication A G MARSDEN & SON Ltd 18 July 1972 [1 Oct 1971] 45701/71 Heading G1H In an alarm device, such as for use in an I. C. engine cooling system, which indicates when the liquid falls below a predetermined level a non- magnetic container 1 contains a pivoted float 2 which carries a magnet 3 to operate a magnetically operated reed switch on the outside of the container 1 and in circuit with lights 14, 15 in an alarm box 13, Fig.3 (not shown). The container 1, float 2 and its suspension may be of a non- ferrous material such as copper, brass, aluminium, plastics or non-magnetic rustless steel.