baber/WOPTO huggingface dataset:
Patent GB-1323260-A (GB)
Title: Switching system
IPC: G08B13/02
Filed: 1971-11-04
Abstract: 1323260 Burglar alarms PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 4 Nov 1971 [7 Nov 1970] 51356/71 Heading G4N [Also in Division H1] A switching device for rendering an apparatus 9 (which may be, for example, an ultrasonic Doppler-effect burglar alarm with a delayed response) operative and inoperative comprises a plurality of actuators 1 which after actuation return to their rest positions, and one or more of which must be actuated according to a predetermined code to render the apparatus inoperative, wherein arbitrary actuation of one or more actuators to render the apparatus operative determines the said code and the same actuator or actuators as has or have been thus actuated must therefore subsequently and exclusively, be actuated to render the apparatus inoperative. As shown, a plurality of pushpush switches have contacts 7 connected in parallel such that depression of any one or more closes a circuit of apparatus 9 and each depressed switch, and only each depressed switch, must again be depressed to open the circuit. Each switch may comprise a pawl (15, Fig. 2, not shown) which steps a ratchet wheel (17) upon each depression of a button 1, said ratchet wheel carrying contact members (19) which at alternate steps bridge fixed contacts (21). Alternatively the buttons 1 may act directly on contacts controlling flip-flop circuits with transistors serving in place of switches 7.
Patent GB-1474584-A (GB)
Title: Method for the manufacture of magnesium hydroxide and dead- burned magnesia pellets
IPC: C05D5/00
Filed: 1974-11-27
Abstract: 1474584 Magnesium hydroxide/oxide pellets BASIC Inc 27 Nov 1974 [12 Dec 1973] 51415/74 Heading C1A Pellets of Mg(OH) 2  are prepared by mixing together magnesium (MgO), Mg(OH) 2  and water in a mixer comprising a plurality of mixing tools eccentrically placed within the bowl, and means for rotating at least once of the mixing tools in a direction contrary to that of the mixing bowl; the quantity of water used is only sufficient to hydrate the magnesia, the excess water being driven off as vapour by the heat of the hydration reaction. The Mg(OH) 2  used in the process may be prepared from sea water or brine; and may be calcined to produce the MgO also used in the process. The Mg(OH) 2  pellets of the invention may be used as suds, or may be calcined at >1500‹ C. to give "deadburned" Magnesia pellets.
Patent GB-1191516-A (GB)
Title: 0,4-Hexadienes.
IPC: C07C2/04
Filed: 1967-11-14
Abstract: 1,191,516. Cis-1,4-hexadienes. MONTECATINI EDISON S.p.A. 14 Nov., 1967 [17 Nov., 1966], No. 51715/67. Heading C5E. Cis-1,4-hexadienes are prepared by codimerizing ethylene with a conjugated diene (e.g. butadiene or isoprene) in the presence of an ether solvent (e.g. diethylether or THF) and a catalyst obtained by reacting an iron halide with a Grignard reagent of formula RMgX, where R is a C 1-12  alkyl or aryl group and X is Cl, Br or I.
Patent GB-1281020-A (GB)
Title: Improvements in torque spanners
Inventor: HASTINGS BASIL JOSEPH
IPC: B25B23/142
Filed: 1969-10-24
Abstract: 1281020 Torque spanners T WILLIAMS (DROP FORGINGS & TOOLS) Ltd 18 Aug 1970 [24 Oct 1969] 52097/69 Heading B3N A torque spanner comprises a lever 11 having a spanner head 10 rigid therewith and being pivoted at 13 inside a housing 12 so that a cam surface 14 of the lever engages a ball 18 seated against an axially movable member 19 which is spring loaded. The member 19 slides in a fixed fitting 16. At the other end of the handle the spring engages a sleeve 25 which can be adjustably screwed through a fixed nut 26. An axially calibrated tube 28 is mounted on the sleeve between a nut 29 and a boss 31 of a handle assembly. The cam surface 14 may have a roller mounted therein for co-operation with ball 18. In operation lever 14 assumes the position shown in Fig. 3 until the spring loading is overcome whereupon the lever moves across the width of the housing and in so doing emits a clonk. The cam surface may have a facing of hard material or the end may be ease hardened. The plunger 19 may be made from a case hardened steel or nylon.
Patent GB-1564428-A (GB)
Title: Electronic timepiece
IPC: G04G5/00
Filed: 1976-12-15
Abstract: An electronic timepiece having an A.M. and P.M. display function. The characters A or P are displayed during time setting or correction by one discretionary display element of a plurality of display elements normally used for displaying time.
Patent GB-1260022-A (GB)
Title: A method of testing a membrane tank
IPC: G01N3/12
Filed: 1969-10-27
Abstract: 1,260,022. Testing tanks. BRIDGESTONE LIQUEFIED GAS CO. Ltd. Oct. 27, 1969 [Nov. 4, 1968], No.52584/69. Heading G1S. Rubber hoses 9 filled with compressed air are placed between a corrugated inner tank lining 6 and a heat insulating layer 4 within an outer vessel 2 so that under a strength test when the tank is filled with water the hoses act as supports for the lining 6. In use the tank contains low temperature liquified gas and the lining 6 contracts at this temperature and is forced by the pressure to lie flat against the layer 4.
Patent GB-1408751-A (GB)
Title: Monoazo dyestuffs their manufacture and use
IPC: C09B31/043
Filed: 1972-11-14
Abstract: 1408751 Monoazo dyes CIBA-GEIGY AG 14 Nov 1972 [18 Nov 1971] 52609/72 Heading C4P New monoazo dyes free from water-solubilizing acid groups, of formula wherein D is a diazo component radical, R 1  is an aryl, alkoxy, aryloxy, alkylamino, arylamino (alkoxy or aryloxy) carbonyl, (alkoxy or aryloxy) carbonylalkyl, (aryloxy, arylthio or arylamino) alkyl, styryl, aralkyl, cycloaliphatic or heterocyclic radical, R 2  is H, an alkyl radical which may be substituted or is as defined for R 1  and R 3  and R 4  each independently is an optionally substituted alkyl radical which is optionally interrupted by at least one hetero atom are prepared by azo coupling. They are used to colour leather, wool, silk, and synthetic fibres such as polyacrylonitrile, vinyl polymers, polyurethane polyolefin, cellulose acetate, polyamide and, in particular, polyester fibres in red and blue shades.
Patent GB-1169929-A (GB)
Title: Hydrophilic Polyurethane Foam and method of making same
IPC: C08G18/38
Filed: 1966-11-25
Abstract: 1,169,929. Hydrophilic polyurethane foam. ELEKAL. 25 Nov., 1966 [27 Nov., 1965], No. 53009/66. Headings C3C and C3B. Hydrophilic polyurethane foam is prepared by reacting at least one organic polyisocyanate, at least one polyester or polyether based polyol, water, and at least one morpholine derivative having the general formula in which R is a functional group capable of reacting with an isocyanate group of the polyisocyanate and which has at least one active hydrogen atom, or a group containing such a functional group, the polyurethane having present therein appendant to the linear molecular chain a plurality of groups each having the general formula in which R<SP>1</SP> is the residue of the group R after reaction thereof with an isocyanato group of the polyisocyanate, in an amount sufficient to render the polyurethane foam hydrophilic. In examples, hydrophilic foams are prepared by foaming a mixture of polypropylene glycol, water, tolylene diisocyanate, silicone oil, triethylene diamine, stannous octoate and a morpholine derivative which may be 1,3-dimorpholyl - 2 - propanol; N - # - hydroxyethyl morpholine; N-amino-propylmorpholine; 3,3<SP>1</SP>- dimorpholyl dipropylamine or N-#-hydroxypropylmorpholine.
Patent GB-1350647-A (GB)
Title: Process for the manufacture of an artificial milk
IPC: A23C11/06
Filed: 1971-11-16
Abstract: 1350647 Artificial milk BATTELLE MEMORIAL INSTITUTE 16 Nov 1971 [17 Nov 1970] 53241/71 Heading A2B A pulverulent proteinaceous substance containing at least 70wt% acid-precipitated casein and preferably at most 30wt% of at least one vegetable oil seed protein is dissolved in a basic aqueous solution containing alkali metal ions, the quantity and pH of said solution being such that after complete dissolution of the proteinaceous substance there is obtained a solution of pH 5.5-7.3 to which solution there is added sufficient of a mixture of calcium hydroxide and calcium chloride to raise the pH to 7.5-10, and thereafter there is added sufficient aqueous phosphoric acid to bring the pH to 5.6-6.8. The product may be used in cheese manufacture.
Patent GB-1158728-A (GB)
Title: Method of Manufacturing Products, for example Mineral-Wool, from High Resistance Mineral Material
IPC: C03B7/07
Filed: 1966-12-01
Abstract: 1,158,728. Melting glass and like materials. ALLM€NNA SVENSKA ELEKTRISKA A.B. 1 Dec., 1966 [2 Dec., 19651, No. 53823/66. Heading C1M. An induction furnace having molten metal 17 therein, the metal being circulated by an induction pot 16, has the molten material supplied at 15 from a cupola or other melting furnace, or preheated material supplied at 20, the melt being stirred and the composition averaged out from several batches. A feed 18 leads to a spinning or other machine. The invention is particularly concerned with the treatment of slag-wool.
Patent GB-1365564-A (GB)
Title: Rotary piston compressors
IPC: F04C29/00
Filed: 1971-09-30
Abstract: 1365564 Rotary positive-displacement machines ATLAS COPCO A B 30 Sept 1971 [1 Oct 1970] 52930/73 Divided out of 1365563 Heading F1F The subject-matter of this Specification is identical with that described in Specification 1365563 (saving omission of details of the liquidinjection means) but the claims are concerned with a compressor having co-operating rotors, each rotor having a hub from which extends generally radially a tooth and wherein a recess is provided for the passage of the tooth of the other rotor, and the tooth of one rotor having a concave leading flank with a portion near the tooth root shaped to permit fluid trapped between the rotors to escape.
Patent GB-1440333-A (GB)
Title: Process for the manufacture of conveying screws of long service  lfe and high resistance to wear
IPC: C23C4/06
Filed: 1973-11-22
Abstract: 1440333 Coating with metals by spraying EPITOGEPGYARTO VALLALAT 22 Nov 1973 [11 Dec 1972] 54226/73 Heading C7F A conveyor screw is plasma or flame sprayed with (wt. per cent) 0À4 C, 16 Cr, 4B, 4 Si, 3 Fe, 2À5 Cu, 2À5 Mo, 2À5 W, balance Ni. The screw is cleaned, heated to 160 to 200‹C, and a coating of 50 to 100 microns sprayed whilst it is rotated, the coating is then heated to 1100 to 1250‹C, and an intermediate layer of 0À2 to 2mm. applied in thickness steps of 0À2 to 0À25 mm., then after cooling at a rate less than 5 to 10‹C per minute, a top layer of 50 to 100 microns is applied at a temperature of 160 to 200‹C, and the screw is finally cooled at less than 5 to 10‹C per minute.
Patent GB-1249129-A (GB)
Title: Self-adjusting hydrostatic leadscrew and nut assembly
IPC: F16H25/20
Filed: 1968-11-15
Abstract: 1,249,129. Screw-and-nut mechanism. BENDIX CORP. 15 Nov., 1958 [15 Nov., 1967], No. 54343/68. Heading F2Q. In a leadscrew and nut assembly comprising a leadscrew 2, nut members 14, 16 and a frame 18 for retaining the nut members 14, 16, circumferentially spaced fluid pressure pockets 24 are provided along one of the inclined radial surfaces of thread 20 in nut 14 and similarly spaced pressure pockets 26 are provided on the opposed inclined radial surfaces of nut 16, the resultant axial forces from the hydrostatic film of each nut acting in opposite directions and being opposed by an hydrostatic thrust bearing 28, formed by a fluid pressure pocket 30, between the nut 14 and frame 18. The film thickness may be adjusted by rotation of nut 16 by means of adjustment screws 33 which are adapted to be locked in position by screws 36. The nut 14 is prevented from rotation by an axial key 37. A pressure indicator 32 is connected to bearing 28 enabling variations in tooth thickness or lead error to be determined. The pressure pockets may be formed as a single helical groove.
Patent GB-1410957-A (GB)
Title: Power supply for electrical processing apparatus
IPC: B23H3/02
Filed: 1972-11-28
Abstract: 1410957 Automatic voltage control HITACHI SEIKO Ltd 28 Nov 1972 [29 Nov 1971] 54962/72 Heading G3R A power supply includes a transformer, fullwave rectifier, and a sampling circuit which produces a D.C. voltage corresponding to the peak values of the rectifier output produced by one polarity of an A.C. supply to the transformer. The transformer output voltage is regulated in dependence on the difference between the voltage produced by the sampling circuit and a reference voltage. As shown, a workpiece and electrolytic grinder electrode are connected to output terminals A,B of a rectifier circuit 2 which may be switched so as to deliver either attenuated A.C. or full-wave rectified D.C. when connected to an A.C. supply through a variable transformer 1. The output voltage is also fed through a circuit 4 which blocks alternate half-cycles so that its output consists of positive half-waves irrespective of the setting of the rectifier switches 3. This voltage then charges a capacitor C 1  in a holding circuit 5, and the stored peak value is compared in a differential amplifier 10 with a reference voltage set by a potentiometer 8. Any difference is supplied to a power amplifier 11 which causes a D.C. servomotor 12 to drive a tapping on the transformer 1 and thus regulates the supply voltage. When the instantaneous value of the input voltage to holding circuit 5 reaches a proportion of the stored peak voltage defined by resistors R 1 , R 2 , a trigger circuit 6 briefly triggers a transistor in a circuit 7 to partially discharge capacitor C 1  so that it subsequently recharges to the peak value of the succeeding half-wave. Alternatively, the circuit 6 may operate at a predetermined time interval related to the period of the A.C. source. By controlling the peak value of the electrode voltage, sparking across the working gap is reduced.
Patent GB-1133260-A (GB)
Title: Take-off and landing platform for vertical take-off and landing aircraft with vertical lift jet engines
Inventor: MADELUNG GERO
IPC: B64F1/00
Filed: 1966-12-08
Abstract: 1,133,260. Aircraft take-off and landing places. ENTWICKLUNGSRING SUD G.m.b.H. 8 Dec., 1966 [23 Dec., 1965], No. 55103/66. Heading B7G. A landing stage for V.T.O.L. aircraft comprises a deck 32 having a series of apertures 41 each of which has a downward opening closure 40 with means 42 to 42<SP>1111</SP> of limiting the opening of the closure 4. The apertures 41 are provided to deflect the downwardly exhausted V.T.O.L. engine efflux to prevent re-entry into the engine. The apertures 41 may be either narrow rectangular, the closures 40 being flaps hinged along their long sides, or circular holes, the closures 40 being vertically reciprocable valves, Fig. 6 (not shown). The landing stage may comprise a series of decks side by side at different levels, Fig. 1 (not shown).
Patent GB-1274325-A (GB)
Title: Apparatus for mixing materials
Inventor: FARGEN JOSEPH ARTHUR
IPC: B01F7/08
Filed: 1969-11-12
Abstract: 1,274,325. Concrete mixers. J. A. FARGEN. 19 April, 1971 [12 Nov., 1969], No. 55392/69. Heading B1C. Vehicle mounted mixing apparatus for concrete comprises a pair of counter rotating mixing screw conveyers 12 discharging into a conveyer 18 which is pivoted about a vertical axis (21, Fig. 2 not shown) so that the mix may be returned to the conveyers 12 for recirculation, or discharged. Dry materials are delivered by a conveyer (23, Fig. 1 not shown) which cannot operate unless the conveyer 18 is in the recirculation position. The conveyers 12, 18 have two starts; conveyers 12 have a short pitch solid portion 14 followed by ribbon flights 15 of which small portions 16 may be omitted.
Patent GB-1335088-A (GB)
Title: Process for the preparation of carboxylic acids
IPC: C07C51/27
Filed: 1971-11-30
Abstract: 1335088 Carboxylic acids from vicinal diols HENKEL & CIE GmbH 30 Nov 1971 [1 Dec 1970] 55485/71 Heading C2C Aliphatic monocarboxylic acids having at least 5 carbon atoms are prepared by reacting aliphatic vicinal diols having at least 6 carbon atoms and/or their complete or part esters, with aliphatic carboxylic acids having 1 to 4 carbon atoms with nitric acid of at least 65% concentration at 40 to 100‹ C. in the absence of oxidation catalysts. The preferred molar ratio of diol or diol-ester to nitric acid lies in the range 1: 6 to 1 : 60. The vicinal diol and ester starting substances may be prepared by the hydroxylation of olefins having at least 6 carbon atoms by peracetic acid or acetic acid/H 2 O 2  or formic acid/ H 2 O 2  mixtures followed by separation of excess solvent. In examples (1) to (4) molten dodecanediol-1,2 is reacted with 14 mols. of nitric acid at 60‹ C. to 80‹ C. to give a mixture chiefly of C 10  and C 11  carboxylic acids; (5) at 90 degrees C 8  and C 9  acids are formed; (6) hexadecanediol-1,2 gives C 14  and C 15  acids; (7) unsaponifiable residues from a nitric acid oxidation of dodecanediol-1,2 are oxidized with 80% nitric acid to C 11  acids; (8) hexadecanediol-8,9 is oxidized to C 8  acids; (9) mixed dodecanediol-1,2 mono- and diformates are oxidized to C 11  acids.
Patent GB-1209618-A (GB)
Title: Apparatus for continuously dispersing suspensions of solid particles
IPC: B01F27/73
Filed: 1967-12-11
Abstract: 1,209,618. Ball mills. VYZKUMNY USTAV ORGANICKYCH SYNTEZ. 11 Dec., 1967 [12 Dec., 1966], No. 56183/67. Heading B2A. Dispersing apparatus has a device for separating the media from the dispersed material and comprises a cylindrical vessel 4, Fig. 2, a shaft and agitating discs with diameter between 50 and 95% of the inner vessel diameter and a supply neck 7 for a suspension to be ground. The separating device comprises a rotatable circular plate 10 and a stationary annular plate 9 fixed to the vessel, or an extension 15 thereof. The rotatable plate is keyed either to a separate independently-driven shaft or to the main agitator shaft, Fig. 3 (not shown), and has a diameter larger than that of the central opening in the stationary annular plate. The rotatable plate is at the same side of the annular plate as the mixture of grinding media and suspension. The circular plate has an outer cylindrical surface 12 and a diameter no greater than that of the agitator discs. The agitator is driven at a circumferential speed of at least 8m/sec. The grinding bodies may have a diameter of between 0.25 and 1.0 mm and take 40 to 60% of the vessel capacity. The vessel has a discharge neck 11. Reference has been directed by the Comptroller to Specification 1,024,053.
Patent GB-1447977-A (GB)
Title: Recovery of nitrile rubber
IPC: C08C1/00
Filed: 1972-12-06
Abstract: 1447977 Recovery of nitrile rubber BP CHEMICALS INTERNATIONAL Ltd 4 Dec 1973 [6 Dec 1972] 56237/72 Heading C3P In the isolation of nitrile rubber from an aqueous latex by blending the latex with an aqueous dispersion of carbon black, coagulating the mixture, and separating the coagulated product from the aqueous phase, the coagulated rubber particles are treated either during or after coagulation with a water-dispersible anti-tack material. The carbon black dispersion is preferably stabilized by the sodium salt of a naphthalene sulphonic acid/formaldehyde condensation product. The anti-tack material suitably comprises a finely divided solid and an emulsifying agent, suitable solids being china clay, mica, talc, calcium carbonate, silica and PVC. In the example, the coagulating agent is a solution of calcium chloride in dilute hydrochloric acid, and the treatment with anti-tack material is conducted after coagulation on a rubber crumb the water content of which has been partially reduced by centrifugation.
Patent GB-1215145-A (GB)
Title: Method and apparatus for the physical and/or chemical treatment of liquids and gases by means of granular substances
IPC: B01J49/90
Filed: 1967-12-11
Abstract: 1,215,145. Ion-exchange. PREUSSAG A.G. 11 Dec., 1967 [9 Dec., 1966], No. 56245/67. Heading B1J. During treatment of an ion-exchanger with a liquid the bed of exchanger is kept densely packed by means of a granular material force acting under gravity and a further force which may be mechanical, hydraulic, pneumatic or magnetic.
Patent GB-1380757-A (GB)
Title: Valve actuating device for an internal combustion engine
IPC: F01L1/24
Filed: 1972-12-07
Abstract: 1380757 I C engine valve gear DAIMLERBENZ AG 7 Dec 1972 [8 Dec 1971] 56441/72 Heading F1B [Also in Division F2] An hydraulic automatic back-lash adjuster pillar providing and maintaining a predetermined valve clearance for an I.C. engine valve operating mechanism of the type in which a cam-actuated rocker (not shown) has one end pivotally mounted on a ball head 13 of a plunger 12 extending from the adjuster pillar and its other end bears on a valve stem (not shown), comprises a hollow casing 10 which contains the reciprocable plunger 12 and is screwably secured into the engine cylinder head. The plunger 12 is outwardly spring-biased at 16 and is of hollow form closed at its inner end by a piston head 17 which carries a seal 18 sealing it against the casing 10, the interior of the plunger forming a reservoir 19 filled with oil via bores 33, 34 in the ball head 13. The piston head 17 carries a further piston 20 which is axially movable in relation to the piston head 17 by the amount of a predetermined valve clearance which, when the engine valve is closed, exists between the piston faces 25, 26 due to the downward bias of a spring 24 in the reservoir chamber 19. The piston 20 includes a spring-loaded non-return valve disc 30 which closes a bore 31 of the piston 20 between the reservoir 19 and a pressure chamber 32. During engine valve lift the cam follower reactive thrust on the plunger 12 initially downwardly moves the plunger 12 to take up the predetermined clearance between the piston faces 25, 26 the piston 20 being displaced slightly upwards to effect volume equalization, after which the plunger 12 and associated piston assembly 20 &c. form a rigid pillar pivotally supporting the cam follower on the pressurized oil in chamber 32.
Patent GB-1219420-A (GB)
Title: A process for the production of mass-dyed filaments or fibres of polyamides
Inventor: ISTEL ERICH
IPC: D01F6/60
Filed: 1967-12-13
Abstract: 1,219,420. Spin dyed polyamides. FARBENFABRIKEN BAYER A.G. 13 Dec., 1967 [15 Dec., 1966], No. 56544/67. Heading C3R. Mass-dyed filaments or fibres of linear synthetic polyamides are produced by forming a dye concentrate by uniformly distributing a 2 : 1 chromium complex of an azo dye corresponding to the formula wherein R and R 1 , which may be the same or different, each represents H or NO 2 , and R 2  represents in a minor portion of polyamide, mixing the dye concentrate with a major portion of the same or another polyamide and spinning the mass thus obtained by a melt spinning process. Preferably the concentrate has a dye concentration of 5 to 30% by weight and forms 0À1 to 20% by weight of the total mass to be spun. Mixtures of the chromium complex dyer and mixed complex dyes, obtained by chroming mixtures of the aforementioned azo dyes, may also be used in the process and pigments, delustrants, antiaging agents and viscosity stabilizers, which are not exemplified, may be added. Reference has been directed by the Comptroller to Specifications 994,388 and 1,055,281.
Patent GB-1182925-A (GB)
Title: Improvements in or relating to Mine Roof Supports.
Inventor: SMALL FRED
IPC: E21D23/00
Filed: 1966-12-16
Abstract: 1,182,925. Mine roof support chocks. GULLICK DOBSON Ltd. 20 Nov., 1967 [16 Dec.. 1966], No. 56570/66. Heading E1P. In a mine roof support chock comprising a base 10 and a canopy 11 extension is effected by a scissors, lazy-tongs or like arrangement of interpivoting levers 12, 15 which are actuated by at least one single- or double-acting jack 23. The levers have a pivotal relationship as shown including a lost-motion arrangement 14, 17, the levers being pivoted at their upper ends to a beam 18 which in turn is connected to the canopy 11 by a pivotal link 19. The levers may be provided with flush guards such as 26 and the chock have an advancing jack. For a slightly modified arrangement of levers to give greater mechanical advantage, Figs. 5 and 6 (not shown) should be referred to.