baber/WOPTO huggingface dataset:
Patent GB-1518835-A (GB)
Title: Apparatus for the control of at least one hydraulic actuator
IPC: F15B13/16
Filed: 1975-10-03
Abstract: 1518835 Fluid-pressure servomotor systems ROBERT BOSCH GmbH 3 Oct 1975 [21 Dec 1974] 40674/75 Heading G3P A hydraulic actuator 21 is supplied by a pump 12 through a pilot-operated main valve 27, determining the direction of actuator movement, and a throttle 33, determining the rate of movement, the pressure drop across the throttle being applied through conduits 36, 37 to the main valve which is thus displaced to reduce flow. The pilot valve 23 receives an electrical signal from an input 49 to vary the fluid pressure in chambers 55, 56 and shift the main valve. The throttle is positioned by an electrical signal from a comparator 46 fed to a solenoid 71 and provides a feedback signal to the comparator through a device 45. Chambers 59, 61 at opposite ends of the main spool communicate with points upstream and downstream of the throttle through conduits 36 and 37. When the solenoid 71 is inoperative, the throttle is displaced by a spring 38 to a position in which a duct 26 connecting the main valve to the actuator is blocked.
Patent GB-1086719-A (GB)
Title: Improved process for producing solid coated products from aqueous slurries and equipment for carrying out said process
IPC: G21F9/00
Filed: 1964-10-07
Abstract: 1,086,719. Processing radioactive waste. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 7, 1964 [Oct. 17, 1963], No. 40956/64. Heading B1D. [Also in Division G6] Solid products are produced from liquid suspensions of radioactive waste material by a continuous process in the first stage 1 of which the particles in suspension are coated with bitumen, in the second stage 2 liquid is separated from the particles by increasing the pressure in the direction of flow of the material, and in the third stage 3 the product is dried. Each stage is carried out in a heated cylinder containing two rotating helical blades, and the three cylinders are connected in series. In the coating device the pitch of the blades 4, 5 may vary to create pressure zones. The separating device has an exit 20 of smaller diameter than the entry 18 and the pitch of the blades near the exit is reduced so as to press out liquid which is withdrawn at 22. The drying device has orifices 32, 33 for the removal of gases and vapours.
Patent GB-1525828-A (GB)
Title: Silver plating method and bath
IPC: C25D3/46
Filed: 1976-10-01
Abstract: 1525828 Electro-depositing silver AMP Inc 1 Oct 1976 [28 Oct 1975] 40960/76 Heading C7B Ag is electro-deposited e.g. on Cu-base alloys from an aqueous plating bath containing XH 2 PO 4 , Y 2 HPO 4  and ZAg(CN) 2  in which X, Y and Z are Na, K or ammonium, and having a pH between 6À8 and 7À2. Consecutive strike, low and high speed plating baths for integrated circuits and microelectronic application are specified:- bath type total PO 4  conc. Ag conc. temp. CD (g/l) (g/1) (C) (A/dm<SP>2</SP>) strike up to 30 1À9 to 3À8 room low speed between 30 and 60 7À5 to 15 50-85 0À5-3 high speed between 60 and 90 15 to 38 60-90 5À5-44 5 to 12 g/l EDTA may be added as grain refiner to the low and high speed plating baths. Pt anodes may be used.
Patent GB-1278260-A (GB)
Title: Improvements in apparatus for washing bed-pan and the like utensils
Inventor: RAWLINGS ALFRED FREDERICK
IPC: A61G9/02
Filed: 1968-08-29
Abstract: 1278260 Apparatus for washing bed-pans &c DENT & HELLYER Ltd 28 August 1969 [29 Aug 1968] 41275/68 Heading A4N An apparatus for washing bed-pans, urine bottles and the like comprises a hopper 1 connected to a sewer by means of a trap 2, means for supporting a bed-pan &c. within the hopper and means for subjecting the bed-pan &c. to disinfecting treatment with water heated to at least 160‹F. Valves 12, 11, 31 are operated sequentially by cams 22, 21, 33 respectively which are rotated on a shaft 23; valve 12 opening to allow cold water stored in a tank (15), Fig.2 (not shown), to pass via conduits 16 and 10, a pump 9 and conduits 7 and 8 from which it impinges on and washes the bed-pan. After a predetermined time the valve 12 closes and valve 11 opens allowing water in tank 13, which is heated by immersion heater 20 to a temperature of about 140‹F, to flow via conduits 14 and 10,  pump 9, and conduits 7 and 8 and so further washes the bed-pan. Further rotation of shaft 23 causes the cams to close valve 11 and open valve 31 which allows water in a tank 24 heated to about 190‹ F. by immersion heater 34, to flow by gravity via conduits 30, 32, 7 and 8 and to impinge on the bed-pan and so disinfect it. The sequence of operations is concluded when the valve 31 is closed. The levels of the water in tanks 13 and 15 are controlled by ball-valves and the tank 24 is filled to the same level as tank 13 by means of a pipe 28 which interconnects the tanks 24 and 13. Reference is made to U.K. Specification 803, 817.
Patent GB-931645-A (GB)
Title: 3-cyano-5-substituted 1, 2, 4-triazoles and preparation thereof
IPC: C07D249/10
Filed: 1961-03-22
Abstract: The invention comprises 3-cyano-5-substituted 1,2,4-triazoles of the formula:- <FORM:0931645/IV(a)/1> in which R represents a C1-6 aliphatic hydrocarbon radical (e.g. alkyl or alkenyl), an aryl radical (e.g. phenyl or naphthyl), or a halogen-substituted aryl radical.  The above compounds are prepared by heating a 2-acyl derivative of 1-cyanoformimidic acid hydrazide having the formula:- <FORM:0931645/IV(a)/2> preferably in the presence of an acid anhydride, to effect ring closure.
Patent GB-1432555-A (GB)
Title: Power-assisted steering gear
IPC: B62D6/02
Filed: 1972-09-08
Abstract: 1432555 Power steering BURMAN & SONS Ltd 24 Aug 1973 [8 Sept 1972 14 Dec 1972] 41764/72 and 57799/72 Heading B7H In a power assisted steering gear the resistance to relative movement between a pair of valve members, controlling a fluid-pressure actuated steering device, is made responsive to vehicle speed. As shown in Fig. 1, relatively rotational valve members 13, 14, which control fluid to a piston and cylinder unit (not shown) forming part of a rack and pinion steering gear 10, 11, are interconnected by a torsion bar 15 which has a recess 16 which may be engaged by the inner end 19 of a plunger 17 which is mounted in a housing 20 formed in the valve member 14. A supply of hydraulic fluid is arranged to be supplied by a hydraulic pump, whose pressure is dependant on vehicle road speed, to act on the head 18 of plunger 17 so that at a predetermined road speed the inner end 19 engages with recess 16 thus effectively shortening the torsion bar length so that greater resistance will now be offered to the relative rotation of the valve members 13, 14. The outer end of valve member 13 is connectible to a driver rotatable shaft (not shown) and the inner end of valve member 14 forms an extension of pinion 10. In an alternative arrangement a solenoid actuated valve is made responsive to a dynamo electric machine whose rotational speed is representative of vehicle speed, and the solenoid valve controls the application of fluid pressure controlling the plunger 17. Also, the fluid pressure for such resistance may be supplied from a pressure line carrying operating fluid to the steering gear from the engine driven pump thus abolishing the need for a further pump.
Patent GB-1481999-A (GB)
Title: Locks
IPC: E05B29/00
Filed: 1974-09-27
Abstract: 1481999 Locks VOLKSWAGENWERK AG 27 Sept 1974 [29 Sept 1973] 42064/74 Heading E2A  The plate tumblers of a barrel lock are provided with two laterally-spaced key-abutment surfaces 33, 34, Fig. 2, arranged so that with the key 26 inserted in the position shown, surface 34 is engaged by key surface 39, see also tumbler 20 in Fig. 1, to place the tumbler in its unlocking position; and if the key is inverted, then key surface 40 engages tumbler surface 33 to produce the same effect. Hence the key may be used either way up. Surfaces 37, 38 are guides. Advantage is taken of this symmetry to use two identical tumblers 11, 12; 13, 14; 19, 20, at each location, one being inverted with respect to the other. The edges of the tumblers may be chamfered to save axial space (Fig. 5, not shown) and the tumbler pairs may be laterally side-by-side (Fig. 7, not shown) instead of being axially spaced as in Fig. 1.
Patent GB-922531-A (GB)
Title: Improvements in or relating to the curing of rubber
Inventor: KEYTE DENIS NEWTON
IPC: B29C71/04
Filed: 1958-12-30
Abstract: Rubber is cured by incorporating in it a small amount of an organic peroxide and exposing the mixture to high energy ionizing radiation, e.g. thermal neutrons, gamma rays, X-rays, high energy electrons &c., from a suitable source, e.g. cyclotron, linear accelerator &c., the dosage being from 3X106 rads. to 5X107 rads., preferably 1X107 to 3X107 rads. Specified rubbers are natural rubber, butadienestyrene, -methacrylate, chloroprene-based, butadiene-acrylonitrile rubbers, copolymers of olefines, and graft polymers of natural and synthetic rubbers, and 2,5-10% of the peroxide, based on the weight of rubber, is incorporated. Suitable peroxides include di-isopropyl peroxide, dicumyl peroxides, t-butyl hydroperoxides, t-butyl perbenzoate, if desired in association with a carrier, e.g. adsorbed on CaCo3 or zeolite. Irradiation may be effected in air or vacuo. Specification 911,147 is referred to.
Patent GB-1454906-A (GB)
Title: Fluorocarbon containging vinyl copolymers
IPC: D06M15/277
Filed: 1973-09-10
Abstract: 1454906 Fluoropolymers containing azido groups IMPERIAL CHEMICAL INDUSTRIES Ltd 9 Aug 1974 [10 Sept 1973] 42428/73 Heading C3P [Also in Divisions C2 and D1] A copolymer comprises at least two vinyl monomers, at least one of which contains a fluorocarbon chain and at least one of which monomers contains an azido group. The fluorocarbon chain containing monomer is preferably of the formula wherein Rf is a fluorocarbon chain, B is a linking group and R is hydrogen or a lower alkyl group of from one to four carbon atoms, preferably the fluorocarbon chain Rf being linear, having a terminal CF 3  group and having from 6 to 13 carbon atoms. The azido group containing monomer may contain an azidoformate or sulphonylazido group and preferably has the formula wherein X is an azido or sulphonylazido group, D is a linking radical and R is a hydrogen or a lower alkyl group of from 1 to 4 carbon atoms. The copolymers may additionally comprise a third monomer, e.g. a vinyl monomer containing an oxyethylene group, preferably or wherein R is hydrogen or methyl and m has an average value of 5-120, preferably 5-35.
Patent GB-943788-A (GB)
Title: Method of calcining sodium bicarbonate
Inventor: HANSEN GUENTER
IPC: C01D7/12
Filed: 1961-11-28
Abstract: Sodium bicarbonate, which may be moist, is kept in suspension in a finely divided condition in a current of hot gas, and calcined, after drying if necessary, and is then separated from the gas; the solid is treated in at least two systems connected in series, in each of which the solid is suspended in the gas by use of e.g. a flash dryer or fluidized bed furnace, and separated in, e.g., a cyclone or baffle chamber. <PICT:0943788/C1/1> In system I, gas at a temperature of about 300 DEG  C. from separation cyclone 6 of system II, and the solid to be heated, separately enter the cylindrical flash dryer 3 of system I; here the solid becomes suspended in the gas and a spiral motion is imparted by guide plates. The solid is then separated in cyclone 4 from the gas, now at a temperature of about 100 DEG  C., which leaves by blower 7 which maintains the requisite gas velocity. The solid then enters cylindrical flash dryer 5 of system II where it meets gas at a temperature of about 550 DEG  C.  The suspension proceeds to cyclone 6 where gas and solid are separated and the finished solid product is discharged through gate 8. The off-gas that leaves cyclone 4 may be used in yet another stage similar to systems I and II. The degree of heat utilization reaches a value of nearly 70%. In this process, formation of dust is cut down, and the product does not differ from the soda calcined in a rotary kiln. The iron apparatus used shows no product deposits even after operation for several weeks.  No smell of ammonia is perceptible when the salt is dissolved in water.
Patent GB-1235975-A (GB)
Title: Electrodeposition of cationic resinous compositions
Inventor: MUNN RAYMOND HENRY EDWARD
IPC: C09D5/44
Filed: 1969-08-28
Abstract: 1,235,975. Electro-phoretic deposition of cationic resinous compositions. COATES BROS & CO Ltd. Aug. 28, 1969, No.42804/69. Heading C7B. [Also in Division C3] A coating is electro-deposited on a conductive substrate as cathode using a bath comprising an aqueous dispersion or emulsion of an epoxy resin and an amine curing agent containing at least one primary or secondary amino group and which is (i) an amino amide or (ii) an imidagoline or (iii) an adduct of (i) or (ii) with an epoxy resin and which is wholly or partially neutralized with an acid; the ratio of amine curing agent to epoxy resin being from 0À66 to 1À5 times the theoretical required for complete curing. The dispersion may contain inert fillers and/or pigments such as carbon black, red iron oxide or china clay. The epoxy resin may be a condensate of diphenylol propane and epichlorhydrin and may be mixed with a minor proportion of butyl glycidyl ether or phenyl glycidyl ether. The amino amide (i) or imidagoline (ii) may be polymeric or monomeric and may be formed by reacting a polyalkylene polyamine with (a) a polymeric fat acid and/or (b) a polycarboxylic adduct of a fat acid with an α# unsaturated acid and/or (c) a polycarboxylic adduct of a fat acid with styrene. The epoxy adduct (iii) is formed by reacting the aminoamide or imidagoline with substantially less epoxy resin than is needed to yield a cured system. The acid used in neutralising (i), (ii) or (iii) may be formic, acetic, propionic or lactic acid. The electro-deposition may employ an emulsion concentration of less than 10% and a voltage of less than 50 volts. Deposition may be at constant voltage or at constant current using an increasing voltage. Coated articles may be cured at room temperature or at an elevated temperature, e.g. up to 100‹C. Specified articles that are coated are wire, which is passed continuously through a deposition tank, steel panels and the interiors of tanks, ship's bilges, pontoons and floats. To accelerate the cure rate, the dispersion may incorporate 2, 4, 6-tris(dimethylaminomethyl) phenol, piperidine, trimethylamine, dimethylaminoethanol, triethanolamine or aminoalkyl morpholines. To replenish the bath, a concentrated emulsion may be continuously prepared and fed thereto.
Patent GB-1278605-A (GB)
Title: Anionic dispersion polymerization of alphamethyl styrene
IPC: C08F291/00
Filed: 1969-08-28
Abstract: 1278605 Anionic dispersion polymerization UNION CARBIDE CORP 28 Aug 1969 [30 Aug 1968] 42979/69 Heading C3P Alpha methyl styrene (and other alkenyl aromatic compounds in comparison examples) is anionically polymerized in an inert atmosphere, in a saturate ether or hydrocarbon diluent, in the presence of a dispersing agent which is a poly(vinyl alkyl ether), and in the presence of an anionic initiator-promoter system to form a dispersion of " living " polymer which may be terminated with the usual terminating agents. In the examples, alpha-methyl styrene (invention) and alpha-para-dimethylstyrene, (4- isopropenyl styrene) or styrene (comparison) are homopolymerized in hexane, heptane, or diethyl ether, using a sodium dispersion or lithium-n-butyl as initiator, tetrahydrofuran (companion) or hexamethylphosphoramide (invention) as promoter, and polyethylvinyl ether as dispersing agent and terminating the polymerizations by addition of methanol, ethanol, isopropanol or carbon dioxide.
Patent GB-982095-A (GB)
Title: Improvements in or relating to containers for nuclear fuel
Inventor: BEUTLER HANS
IPC: G21C3/06
Filed: 1961-12-01
Abstract: 982,095. Fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 26, 1962 [Dec. 1, 1961], No. 43048/61. Heading G6C. A nuclear fuel container for use in a reactor core has a wall enclosing a fuel volume, the wall being formed of a material having a permeability in the order of 10<SP>-6</SP> cm<SP>2</SP>/sec., and having a vent through which pressure differences across the wall can equalize. The wall is preferably graphite, and the vent may be a hole of 0. 35 or 0. 55 mm dia. Pressure differences will arise during rapid heating or cooling of the fuel, or by sudden loss of gas coolant pressure externally of the fuel container. During steady state conditions in the core there will be no escape of radio-active fission product gases through the vent, and such gases will permeate the container giving a relaxation time similar to that of an unvented container. Gas will leave the container during start-up,but the concentration of fission product gases will be at a minimum at this time.
Patent GB-885948-A (GB)
Title: Improvements in and relating to a universal joint of the double hooke's type
IPC: F16D3/33
Filed: 1959-12-18
Abstract: 885,948. Universal joints. ROULEMENTS A AIGUILLES S.A. DES, and REGIE NATIONALE DES USINES RENAULT. Dec. 18, 1959 [Dec. 19, 1958; Feb. 4, 1959; May 29, 1959], No. 43124/59. Class 80 (2). [Also in Group XXV] A double Hooke's joint comprising forks 1, 2, Fig. 1, secured to shafts A, B and journalling a pair of intermediate crosses 4, 5 themselves journalled in a connecting - sleeve 3, is characterized by a ball- and-socket joint 11, 12 formed on bars 8, 9 joining the ends of the two forks. A rubber &c. seal 13 encloses the ball- and socket joint 11, 12. The intermediate crosses 4, 5 are formed with notches 18, Fig. 3, in order to facilitate their insertion into the forks 1, 2 from the sides thereof, and are strengthened by ribs 19. As a modification, the ball 11 may coact with a split bush, Fig. 5 (not shown), having a frusto-spherical internal surface and a cylindrical external surface coacting with the socket. In a further modification, the socket 12a, Fig. 6, is bored right through the bar 8 and is closed by a cup-shaped plug 28. In one modification of this construction, the ball engages the inner cylindrical surface of a similar cup in the socket, Fig. 7 (not shown), and in yet another modification the ball is surrounded by a split bush lying within the cup, Fig. 8 (not shown). In a further modification, the socket 12 is blind, as shown in Fig. 1, but is lined by a hardened bush engaged by the ball, Fig. 9 (not shown). In a further modification, Figs. 10 ... 13 (not shown), the connecting sleeve is strengthened in the vicinity of the bearings for the trunnions of the intermediate crosses.
Patent GB-1042317-A (GB)
Title: Methods of determining hydroxyl groups
Inventor: PRYDE ALEXANDER WILLIAM HARROW
IPC: G01N25/48
Filed: 1962-11-15
Abstract: The hydroxyl group content of a hydroxylic compound is determined by reacting with excess carboxylic acid anhydride, in the presence of a little concentrated H2SO4 which acts as a catalyst, thereby esterifying all the hydroxyl groups in a rapid exothermic reaction, and measuring the resulting temperature rise.  The acid anhydride may be aliphatic, such as acetic, propionic or butyric anhydride.  One per cent of H2SO4 based on the anhydride is adequate.  The reaction is performed in a Dewar flask and maximum temperature is reached in about 30 seconds.  The result is compared with results of similar tests on the same compound of known hydroxyl number to determine that of the test compound.  The test is applicable to materials such as alcohols, phenols, polyethers and particularly the routine testing of polyester resin to determine its degree of esterification during production.  The compound being tested for hydroxyl content should be free of water, but the test is applicable to measuring the water content of non-hydroxylic materials such as acetic acid, or of hydroxylic materials of known hydroxyl number.
Patent GB-1165177-A (GB)
Title: High Pressure Lubricating Oil
Inventor: DRESCHER KURT
Filed: 1966-09-28
Abstract: 1,165,177. High pressure lubricating oil. HYDRIERWERK ZEITZ, VEB. 28 Sept., 1966, No. 43370/66. Heading C5F. A high pressure lubricating oil comprises a basic mineral gear oil with a viscosity of 15-150 cSt at 50‹ C. and a setting point below -5‹ C, and 1-10% by wt. of an aromatic disulphide, in which the sulphur is bound directly to the nucleus and which has been produced by the reaction of xylene with S 2 Cl 2  in the presence of ZnO at a temperature between 0‹ C. and the b.p. of the S 2 Cl 2 . The composition may also contain 1-8% by wt. of a chlorinated paraffin, 1-5% by wt. zinc dialkyldithiophosphate and 1-3% by wt. of an anticorrosive additive obtained by the reaction of an amine with a long chain fatty acid.
Patent GB-1197386-A (GB)
Title: Improvements in Storage Devices
Inventor: ESSER GERHARD
IPC: B65G1/127
Filed: 1968-09-12
Abstract: 1,197,386. Mechanical storage; conveyers. G. ESSER. 12 Sept., 1968 [13 Sept., 1967], No. 43454/68. Headings B8A and B8E. In a temporary storage device containers 1 have studs 2 which travel in endless grooves 3 in side walls 4 so that they can be brought to a loading and unloading position as required. The containers are driven by discs 5 connected to run synchronously by chains and driven by a worm gear. Each disc has slots 6 which engage the studs 2 of a container to drive the respective containers which are not connected together.
Patent GB-1475178-A (GB)
Title: Cash issuing apparatus
IPC: G07D11/00
Filed: 1974-10-10
Abstract: 1475178 Feeding sheets INTERNATIONAL BUSINESS MACHINES CORP 10 Oct 1974 43849/74 Heading B8R Banknotes in a pile 3 are urged towards a stop member 14, Fig. 1, in response to the degree of pressure exerted on a microswitch 20 by a weight 12, 13 supported on a belt 10 which is moved when the switch is released, and the end banknote is fed out downwardly by a friction belt separator 23 through a throat 16 to forwarding belts 27, 29, double feed being prevented by a roller 26 rotated so as to return any second banknote to the pile, while skewing of the separated banknote as a result of a thicker portion thereof exerting greater pressure on the member 14 is prevented by so constricting the member 14 as to contact only areas of the banknote of uniform thickness. In one form, Fig. 5, the member 14 comprises two pairs of wire guides 40, 41 and 43, 44, the pair 40, 41 being bent so as to be nearer the pile than the pair 43, 44. Cross-wires 45-48 are secured to the wires 40, 43 and 41, 44 and may have bent ends to act as side guides for the banknotes. In another form, Fig. 9, the member comprises a metal plate 50 in which two guide rails 51, 52 have been coined, and apertures 55, 56. In both forms, apertures are provided for the switch 20 and the belt 23. The stop means could alternatively comprise moving belts, rollers or wheels.
Patent GB-971049-A (GB)
Title: Novel cyclopentanophenanthrene compounds and a process for the production thereof
IPC: C07J75/00
Filed: 1960-12-21
Abstract: The invention comprises compounds of the general formula:-<FORM:0971049/C1/1> (in which R is hydrogen or methyl, R1 is hydrogen or a hydrocarbon carboxylic acyl group of less than 12 carbon atoms, R2 is hydrogen or a lower alkyl radical having from 1 to 6 carbon atoms, and R3 is hydrogen, lower alkyl, aralkyl containing up to 12 carbon atoms or a hydrocarbon carboxylic acyl group of less than 12 carbon atoms) together with a process for their preparation that includes the step of hydrogenating a compound of the general formula:- <FORM:0971049/C1/2> in the presence of a hydrogenation catalyst and in an inert solvent at a pH between 6.9 and 7.2. The optional steps of etherification and esterification may be carried out prior to or subsequent to the hydrogenation process. The invention is illustrated by sixteen detailed examples. Specification 874,396 is referred to.  Reference has been directed by the Comptroller to Specification 854,409.