baber/WOPTO huggingface dataset:
Patent GB-1052816-A (GB)
IPC: B05D7/24
Abstract: 1,052,816. Coating surfaces. SEALECTRO CORPORATION. May 21, 1964 [May 23, 1963], No. 21097/64. Headings B2E and B2K. A method of coating a surface comprises propelling a dispersion or solution of P.T.F.E. in a liquid medium through a heated zone on to the surface in such a manner that as the composition passes through the heated zone the liquid medium is evaporated, the P.T.F.E. reaches sintering temperature and a continuous film of P.T.F.E. is formed on the surface. The surfaces and articles coated include wood, plastics, ceramic, copper, brass, aluminium, steel, skis, sledge runners tanks, vats and metal foil. The coating may be applied by a flame spray or plasmar gun technique: The surface may be degreased and etched or sandblasted before being coated. The compositions used may be of the type described in Specification 1039295.
Patent GB-1053935-A (GB)
IPC: B41M5/155
Abstract: 1,053,935. Forming micro-capsules. NATIONAL CASH REGISTER CO. July 22, 1965 [Aug. 27, 1964], No. 31302/65. Heading B8C. [Also in Division D2] Microcapsules for use in making pressursensitive record material (see Division D2) are made in Example I as follows: a solution of vinyl methyl ether-maleic anhydride copolymer in water and an aqueous sol of gelatine are mixed, a solution of crystal violet lactone in chlorinated diphenyl and petroleum solvent is dispersed in the mixture, aqueous gum arabic sol is added, the dispersion is diluted, cooled and made alkaline with sodium hydroxide, the pH is then lowered slowly by the addition of acetic acid to a pH of 4.6 to form a coacervate wall about the droplets of solution, the suspension is then chilled and glutaraldehyde added to harden the capsules which are then coated on to a support sheet, a second support sheet is coated with a condensation polymer of paraphenylphenol and formaldehyde. Other examples are generally similar, but show the following modifications: (Examples IV and XIII) 8<SP>1</SP>-methoxy-benzoindolino-spiropyran is dissolved in chlorinated diphenyl and this solution encapsulated in gelatine and gum arabic, hardened with glutaraldehyde; (Example V) N-benzoyl-auramine is dissolved in a mixture of chlorinated diphenyl and petroleum distillate; the encapsulated material is paradiphenylaminostyrylquinoline (Example VI), N - (2,5 - dichlorophenyl) - leucauramine (Example VII) or Michlers hydrol (Example VIII). In Example XVI microcapsules prepared as in Example I are dried to form a freeflowing powder.
Patent GB-1127378-A (GB)
IPC: C08F279/02
Abstract: 1,127,378. Moulding compositions. UNIROYAL Inc. 19 June, 1967 [28 June, 1966; 7 June, 1967], No. 28061/67. Headings C3G, C3P and C3Q. Homogeneous heat-curable moulding compositions comprise polybutadiene, a gum plastic, a filler, a monomeric ester having at least two non-conjugated double bonds and a free radical polymerization initiator. The polybutadiene is preferably at least 95% cis-1,4 configuration. The gum plastic may be a high impact polystyrene, high impact polyvinyl chloride, a graft copolymer of styrene and acrylonitrile on a polybutadiene or butadiene/styrene copolymer rubber spine or a mixture thereof with a resinous styrene/acrylonitrile copolymer, or a graft copolymer of styrene and acrylonitrile on an ethylene/propylene or ethylene/propylene/ non-conjugated diene copolymer rubber spine. Specified fillers are titanium dioxide, hydrated silica, hydrated calcium silicate, barium sulphate, talc and zinc oxide. Specified esters are acrylic and methacrylic esters of ethylene glycol, diethylene glycol, 1,3-butanediol, neopentylene glycol, triethylene glycol, tetraethylene glycol, glycerol, trimethylol propane, pentaerythritol, sorbitol, allyl alcohol and methallyl alcohol; and allyl and methallyl esters of succinic, maleic and fumaric acids. Specified initiators are lauroyl peroxide, benzoyl peroxide, t.-butyl hydroperoxide, azobisisobutyronitrile and particularly dicumyl peroxide supported on calcium carbonate. The compositions may also comprise natural rubber and copolymers of olefins with acrylic or methacrylic acid at least partially neutralized by metal ions. The compositions may be moulded to form golf balls, and many examples of suitable compositions are given.
Patent GB-1226025-A (GB)
IPC: H03K3/289
Filed: 1968-10-30
Abstract: 1,226,025. Transistor bi-stable circuits. TEXAS INSTRUMENTS Inc. 30 Oct., 1968 [7 Nov., 1967], No. 51452/68. Heading H3T. A J-K type master-slave flip-flop system has two input gates G 1 , G 2 , receiving respectively the J, K inputs, connected to the master bistable G 3 , G 4 , whose outputs are fed to the slave bi-stable G 5 , G 6  through gates such as transistors T 1 , T 2 , and the outputs Q, #Q of the flip-flop are supplied through an output circuit such as transistors T 3 -T 8 , information being transferred through the system by clock pulses applied only to the input gates, G 1 , G 2 . The leading clock pulse edge transfers information (J, K) into the master bi-stable G 3 , G 4  and the trailing edge transfers the G 3 , G 4  output to the slave bi-stable G 5 , G 6 , the two bi-stables being isolated at other times. Each unit G 1  to G 6  is a NAND gate in which a single emitter transistor, e.g. T 01 , only conducts to give a " low " output at its collector if all the inputs to the emitters of its associated multi-emitter transistor T i1  are held " high " to cut off T i1  and allow current to flow through its base-collector junction to the base of the single emitter transistor, t o1 . Supposing the outputs Q, Q, which are connected to gates G 2 , G 1  respectively to be high and low respectively, and the J and K inputs to be high, then when a clock pulse occurs (high) all the emitters of multiemitter transistor T i2  in gate G 2  are high, and consequently T 02  collector is low. This permits multi-emitter transistor T i4  of G 4  to conduct and T 04  collector to go high, and this appears at the corresponding emitter of multi-emitter transistor T i3  of G 3 . Since the other emitters thereof are also high, due to " PRESET " being high and G 1  output being high because of the low Q input, T o3  collector goes low. Thus master bistable G 3 -G 4  is changed over. Also, the gating transistors T 1 , T 2  respectively, have a high and low level applied to their emitter and base respectively so that both are OFF. When the clock pulse ends, however, G 2  output goes high again, G 1  being unaffected since a low from Q has been continuously present, and T 2  then conducts. The master bi-stable state is unaffected, and the low on T o3  collector passes through T 2  to one emitter of T i5  of G 5 . This causes T 05  collector to go high, transistors T 3 , T 4 , to go ON and T 5  OFF, so that #Q goes high. Reciprocal coupling causes Q to go low, and thus the outputs Q, #Q of the slave bi-stable are changed in accordance with the master state. The advantage of the circuit is said to be that the clock pulses need be applied to only one input terminal to control the complete flow of information into and through the master-slave flip-flop, thus reducing the loading on the clock source. Reference has been directed by the Comptroller to Specification 1,140,620.
Patent GB-1229049-A (GB)
IPC: H02K9/193
Filed: 1968-08-23
Abstract: 1,229,049. Seals. LICENTIA PATENTVERWALTUNGS G.m.b.H. 23 Aug., 1968 [24 Aug., 1967], No. 40390/68. Heading F2B. [Also in Division F4] In a coolant apparatus for the supply and discharge of coolant to and from a liquidcooled rotor of an electrical machine, e.g. a turbo-generator, comprising a connecting head in which a gas protective chamber 10 is disposed between the coolant outlet 6 and a seal 15 to atmosphere and a non-contact gap seal 9 or a sliding seal is located between the chamber 10 and the outlet 6, the coolant leakage through the seal 9 being collected in the chamber 10 and returned to the cooling circuit, the coolant system includes a storage tank 28 disposed at a predetermined height above the connecting head and a coolant return unit 32; the tank 28, the gas chamber 10 and the unit 32 all being subjected to the same gas pressure. The connecting head has a stub shaft 2 which is secured to the rotor shaft 1 and surrounded by a housing 5 connected to the bearing housing 16 of the turbo-generator (not shown). Cooling water is supplied from the tank 28 to a bore 3 in the shaft 2 via a pipe 29 and pump 30 and returned to the tank through a passage 4, chamber 8, outlet 6 and pipe 31. The gas chamber 10 is separated by a partition 12 and a labyrinth seal 11 from a further gas chamber 14 sealed by the seal 15 which co-operates with a collar 26 on the shaft 2 and is supplied with lubricating oil which leaks into the chamber 14 and is removed through a pipe 24. Cooling water passing through the seal 9 to the chamber 10 is drained through a pipe 27 and collects in the return unit 32 which includes a collecting vessel 36, a return pump 37 and a float-controlled regulating valve 38 which controls the level 39 of the water in the unit, excess water being returned to the tank 28 through pipe 40. Nitrogen under pressure is supplied through a pipe 34 from a gas cylinder 33 to the tank 28 and from there to the gas chambers 10 and 14 and the unit 32 through pipes 35 and 27 respectively.
Patent GB-1232446-A (GB)
IPC: H01F7/14
Filed: 1968-08-02
Abstract: 1,232,446. Electromagnetic actuator. BINDER MAGNETE K.G. 2 Aug., 1968 [11 Aug., 1967], No. 36935/68. Heading H1P. As shown, Fig. 1, an electromagnetic actuator comprises an E-shaped core 3 the outer legs of which are surrounded by two coils 2a, 2b so that their ends lie within the coils, and a two armed armature 1 rotatably mounted on the centre leg of the core 3 so that the arms can plunge into the interiors of the coils. The centre leg of the core 3 is provided on opposite faces with T-shaped plates (9), 10, between which the armature 1 is pivoted by means of a pin 7. The outer legs and spine of the core are provided on opposite faces with U-shaped plates 4, 5. The ends of the plates 4, 5 extend past the ends of the outer arms of the core 3 within the coils and are shaped to provide the required force characteristics, Figs. 3a to 3c (not shown). The power take-off can be by means of a push rod 12, an extension of pivot pin 7, or a cam surface 13. The T- and U-shaped plates may be attached to the E-shaped core by welding, sticking or riveting, and all the magnetic parts may be produced by stamping. The core and armature may be laminated for A.C. use and the armature may be asymmetrically shaped. The armature may be spring biased to provide a bi-stable or a centre-stable arrangement, Figs. 5a and 5b (not shown).
Patent GB-1239016-A (GB)
IPC: D06P1/62
Filed: 1968-01-16
Abstract: 1,239,016. Dispersions of pigments and dyestuffs. IMPERIAL CHEMICAL INDUSTRIES Ltd. 31 Dec., 1968 [16 Jan., 1968], No. 2405/68. Heading B1V. [Also in Divisions C2 and D1] Pigments, water-insoluble dyestuffs and dyeing assistants, for example salicylanilide are dispersed with the aid of condensation products obtained by reacting together 1 mol naphthalene, 1-3 mols sulphuric acid and 0.1-3.0 mol of at least one compound of the formula: where X is CH 2 Cl, CHCl 2  or CH=CH 2  and R is H or alkyl of 1-3 carbon atoms, at 110-200‹C., reacting the product with formaldehyde, or a substance yielding formaldehyde, in the presence of an acid catalyst, and neutralising the reaction mixture with alkali. Dispersions may also contain the sodium salt of the condensate of formaldehyde and naphthalene-beta-sulphonic acid.
Patent GB-1239062-A (GB)
IPC: F16K5/06
Filed: 1968-11-06
Abstract: 1,239,062. Valves. OTIS ENG. CORP. 6 Nov., 1968 [17 May, 1968], No. 52473/68. Heading F2V. A rotatable plug valve comprises a valve member 15 which is rotatably mounted by trunnions 20, 21, and operated by a rectilinear fluid motor 40 coupled to the trunnion 21 through a mechanism which transforms the rectilinear into the rotary movement. A sleeve 65 coupled to the trunnion is rotated by a cross pin 70 sliding in axial guides in the sleeve and in helical slots in a fixed sleeve 58. The cross pin is mounted, by a head 72, thimble 75, and bearings 80, rotatably on a pin 78 fixed to the piston-rod 54. The valve is locked in the closed position by a spring-loaded pin 116 engaging ratchet teeth in the sleeve 65. The valve is also arranged to " fail-safe " in the event of loss of operating pressure or overpressure within the valve. This is effected by the spring 50 or by the pressure within the valve having access to a plunger 140 through a passage 131 communicating with the plug bore. The valve can further be operated manually by a handle 30. Known lubricating devices 29 are provided. A breather cap 107 and relief valve 105 are provided on the motor. In a modification, the motor shown is replaced by a diaphragm type motor. If the plunger 140 is removed, the bore 130 may be closed by a screwed plug.
Patent GB-1250975-A (GB)
IPC: G01K1/14
Filed: 1969-05-06
Abstract: 1,250,975. Thermocouples. VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE A.G. 6 May, 1969 [15 May, 1968 (2)], No. 23122/69. Heading H1K. A lance for continuously measuring the temperature of baths of molten metal comprises a sheath tube 22 made of metallic or metalceramic material, a capillary tube 24 positioned within the capillary tube and having two leads 27, 28, a coaxial plug 35 having a socket 29 to which the leads are connected and an insulating sleeve 30 joined to the capillary tube and the socket to form an integral replaceable unit. The capillary tube, the sleeve and the socket are bonded together by a cast resin member 31. A probe lead 21 to which the sheath tube is attached is water cooled. A jacket 26 of refractory material surrounds the sheath tube.
Patent GB-1251674-A (GB)
IPC: G01L9/00
Filed: 1968-10-15
Abstract: 1,251,674. Piezoresistive devices. CONRAC CORP. 15 Oct., 1968, No. 48784/68. Heading H1K. A pressure transducer comprises an enclosure the walls of which consist solely of semiconductor material, an electrical property of at least part of the wall varying with pressure. Typically the device, Fig. 5, consists of a pair of diaphragms joined by a rigid peripheral wall. One or more PN junction isolated diffused piezoresistive elements aligned with axes of maximum longitudinal piezoresistive response are formed in the outer and/or inner face of one or both diaphragms and the enclosure may be evacuated and sealed or may communicate with the exterior via a tube 54 soldered or cemented in a diaphragm (as shown) or in the peripheral wall. In making the transducer piezoresistors are first formed in a monocrystalline silicon diaphragm. This is then assembled with an annulus of silicon and an intervening foil of silver or aluminium. Preferably the annulus is monocrystalline with its crystallographic axes aligned with those of the diaphragm. A temperature gradient is established in a direction normal to the diaphragm in vacuo or an inert gas ambient so that silicon from the ring dissolves in the foil metal and recrystallizes on the diaphragm, the process being continued until the foil has migrated to the upper face of the annulus. A further diaphragm is then attached to the annulus by the same method to complete the enclosure. Alternatively a sub-assembly of further diaphragm and annulus is first formed and then integrated with the lower diaphragm. In these processes the areas containing the piezoresistors must be cooled to prevent impurity redistribution or allowance made for the latter. Copper, cobalt, titanium, gold or iron may replace aluminium or silver in the joining process. Beryllium may also be used but in this case the foil migrates down rather than up the temperature gradient.
Patent GB-1251718-A (GB)
IPC: C08G18/73
Filed: 1969-01-21
Abstract: 1,251,718. Aliphatic amino esters of 6-amino cuproic acids and di-isocyanates obtained therefrom. ALLIED CHEMICAL CORP. 21 Jan., 1969 [15 March, 1968 (2)], No. 3343/69. Heading C2C. [Also in Division C3] Novel esters of 6-aminocaproic acid of formula NH 2 (CH 2 ) 5 -CO .O.R.NH 2  and di-acid addition salts thereof, where R is C 2-12  alkylene which may be wholly or partially cyclic and is optionally substituted by one or more radicals free from active hydrogen, are prepared from an acid addition salt of the alcohol HORNH 2  and an acid addition salt of 6-aminocaproic acid or its acid chloride and are used to prepare di-isocyanates of formula OCN-(CH 2 ) 5 -CO.ORNCO by treatment with a carbonyl dihalide. The diisocyanates are useful for the preparation of polymers (see Division C3). 6-Aminocaproic acid and its acid chloride are prepared from caprolactam by hydrolysis followed by treatment with 50C1 2 .
Patent GB-1257188-A (GB)
IPC: B01J8/12
Filed: 1968-12-17
Abstract: 1,257,188. Gas/liquid/solid contact. PARAHO CORP. 17 Dec., 1968, No. 60038/68. Heading B1F. [Also in Division F4] A method of introducing oxygen/fuel mixture into limestone in a lime kiln comprises (a) passing a confined supply of fluid under pressure into a plurality of zones in a shaft vessel, each confined supply extending from wall to wall of said vessel generally along a horizontal plane, (b) introducing oxygen/fuel into the limestone at selected points from orifices along said confined supply, and the amount of fluid introduced from every such point being sufficient to provide a uniform amount of fluid in relative to each unit volume of material in a horizontal zone about said confined supply, said predetermined spaces extending along the entire extent of said confined supply internally of said vessel and arranged in abutting position from wall to wall of the vessel, and (c) supplying sufficient oxygen/fuel to said orifices to maintain the same pressure on the fluid entering each orifice, the combined area of the orifices in a distributor being less than the cross-sectional area of that distributor. The fuel may be liquid or gaseous. The oxygen 1 fuel may be confined in distributors 16a and b, Fig. 2, the combined cross-sectional area of all of the orifices in each distributor being less than the cross-sectional area of the distributor. The orifices may be of varying cros-section and uniformly spaced, as of similar crosssection and variably placed.
Patent GB-1257459-A (GB)
IPC: F16C33/80
Filed: 1970-04-22
Abstract: 1,257,459. Boring earth. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM). 22 April, 1970 [25 April, 1969], No. 19373/70. Heading E1F. Drilling apparatus includes a thrust bearing 4 disposed in an oil casing 14 delimited by seals 5, 5<SP>1</SP>, the outside of the seal 5<SP>1</SP> being in contact with mud which is downstream of the bit and which is at a relatively low pressure, means 19, 20 to prevent mud upstream of the bit reaching the seal 5 at high pressure, and passage 17 to connect space 16 on the outside of the seal 5 to the mud downstream of the bit. The bearing is disposed between shaft 2 and housing 1 of a turbo-, or electric drilling machine. The means 19, 20 which are of the labyrinth type permit only a small flow of mud to space 16 from the high pressure area 11. Mud flows through bore 13 to the bit which may be a diamond or a tooth wheel bit. Oil in casing 14 is maintained at a pressure above that of the adjacent low pressure mud by piston 7 and spring 8.
Patent GB-1257637-A (GB)
IPC: G01S1/72
Filed: 1968-11-19
Abstract: 1,257,637. Sound receivers; direction finders. FRIED KRUPP G.m.b.H. 19 Nov., 1968 [21 Nov., 1967], No. 54891/68. Headings H4D and H4J. Receivers for determining the angle of incidence of sound and comprising a magnetostrictive or piezo-electric cylinder are constructed to reduce the disturbing effects of harmonics of the true angle of incidence. A magnetostrictive cylinder has four coils 7, 9 and 8, 10 (Fig. 1) disposed to define dipole axes X, X<SP>1</SP>; Y, Y<SP>1</SP> at right angles. Each coil is of uniform winding density over its limited angular extent 2α o  but the winding density of each coil with respect to an angular range of the cylinder of substantially 180 degrees is non-uniform. As shown, the coils are wound between the inner radius of the cylinder and the winding holes but they may alternatively be wound between the outer radius and the winding holes or round the whole wall thickness of the cylinder. An alternative magnetostrictive cylinder carries four identical coils of which one only (8) is shown (Fig. 3). The coil 8 has one turn in holes 1, 2, 9, 10, two turns in holes 3, 8 and three turns in holes 4, 5, 6, 7. The winding density is thus a maximum at the centre of the coil. A piezo-electric cylinder has a main set of identical transducer elements a 1 , a 2 , b 1 , b 2 , each consisting of pairs of axially extending electrodes and intervening piezo-electric material. The transducer elements a 1  and a 2  are disposed on opposite sides of dipole axis A, A, and the transducer elements b 1  and b 2  are disposed on opposite sides of dipole axis B, B. An additional set of identical transducer elements a 1 K, a 2 K, b 1 K, b 2 K for suppressing harmonics, also consists of axially extending electrodes and intervening piezo-electric material. The additional transducer elements have their centre lines offset 50 degrees from a dipole axis. The connections between the electrodes of only piezo-electric elements a 1  and a 1 K are shown. System.-Three superposed magnetostrictive transducers form a column (Fig. 5, not shown). Display.-The coils 7, 9, 8, 10 (Fig. 2) are connected to the X and Y plates of a cathoderay tube 6. Coils 7, 9 and 8, 10 are respectively connected to difference amplifiers 1 and 2, the difference voltages being respectively proportional to the cosine and sine of the angle of incidence γ. The signal voltages of all four coils are added in sum network 3. The difference voltages and the sum voltage are brought into phase by a phase-shift network 4. Alternatively, phase matching may be effected in the difference channels or, with opposite signs, in the sum channel and in the difference channels. The sum voltage blanks out the electron beam when it is in the direction corresponding to (γ+180).
Patent GB-1257794-A (GB)
IPC: F02P7/03
Filed: 1968-06-28
Abstract: 1,257,794. Ignition systems. ASSOCIATED ENG. Ltd. June 25, 1969 [June 28, 1968], No.31086/68. Heading F1B. [Also in Divisions G2-3] Ignition is controlled with the aid of a solid state light source 1. Each light guide 3 passes light to a photo-electric detector 4 such as an SCR device whose output feeds an electronic pulse forming circuit 5 which feeds a high tension coil 6. The rotating light guide 2 is driven from the engine through a mechanical advance-retard timing control 8. In a modification a delay circuit controlled according to engine speed and/or manifold depression is included. In another modification a cranked rotatable light guide co-operates with pairs of fixed light guides. The first light guide of each pair is connected to the input of a photo-electric detector which feeds a trigger circuit through a delay circuit. The second light guide of each pair transmits bright light pulses to a light-sensitive device which initiate switching of a voltage to a high tension coil having a spark-plug associated therewith.
Patent GB-1258565-A (GB)
IPC: C07D213/22
Filed: 1968-07-01
Abstract: 1,258,565. Bipyridylium salts. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 June, 1969 [1 July, 1968], No. 31367/68. Addition to 1,073,081. Heading C2C. 1,1<SP>1</SP>-Disubstituted-4,4<SP>1</SP>-bipyridylium salts are obtained by treating the corresponding 1,1<SP>1</SP>- disubstituted - 1,1<SP>1</SP>,4,4<SP>1</SP> - tetrahydro - 4,4<SP>1</SP>- bipyridyl with an N-substituted pyridinium salt which is a hydrogen acceptor and has a redox potential in water more positive than - 1.48 volts as compared with the standard calomel electrode. Preferred pyridinium salts are those which contain an electron-withdrawing group attached to the pyridine nucleus. The reaction may be carried out in a solvent for the tetrahydrobipyridyl and the pyridinium salt. Specified starting materials are 1,1<SP>1</SP>-dialkyl- and 1,1<SP>1</SP>- dicarbamidoalkyl - 1,1<SP>1</SP>,4,4<SP>1</SP> - tetrahydro - 4,4<SP>1</SP>- bipyridyls. Examples are given.