baber/WOPTO huggingface dataset:
Patent GB-1204221-A (GB)
Title: Ferrometer for oscillographic measurement of magnetic characteristics
Inventor: MOGILEVSKY VITALY MORITSOVICH
IPC: G01R33/12
Filed: 1968-03-25
Abstract: 1,204,221. Measuring magnetic properties. INSTITUT GORNOGO DELA SIBIRSKOGO OTDELENIA AKADEMII NAUK SSSR. March 25, 1968, No.14293/68. Heading G1N. In a ferrometer for oscillographic display of the hysteresis loop of a bar-shaped specimen of magnetic material. When subjected to a low frequency magnetization and either a D.C. or highfrequency magnetization, the magnetizing device comprises a single-layer ellipsoidal winding 1 of constant pitch along its generatrix connected via a transformer 3 to the mains for providing the low frequency magnetization, and a multi-layer winding 4 having a cylindrical outer surface and an inner surface conforming partly to the ellipsoidal winding and being bound at each end by a conical surface converging to the centre of the ellipsoid connected through a filter 12 to a source of either D. C. or high-frequency A.C. for providing the D.C. or high-frequency magnetization. Coil 1 is made of a tubular conductor through which cooling water flows. In operation, an e.m.f. proportional to the time derivative of the sample magnetization is induced in a pick-up coil 5 which is connected in series-aiding relationship with a compensating coil 6 through an adjustable attenuator 7 and integrator 8 to an indicator 9 and through a phase corrector 10 to one pair of deflection plates of an oscillograph 11. An e.m.f. proportional to the derivative of the mains frequency field of winding 1 is induced in a pick-up coil 14, having tappings selectable by a switch 15, and connected through an integrator 16 to an indicator 17 and through a phase corrector 18 to the other pair of deflection plates of oscillograph 11.
Patent GB-1066489-A (GB)
Title: Gelatine-containing photographic layers
Inventor: DIETERICH DIETER
IPC: C08G18/08
Filed: 1964-04-07
Abstract: A light-sensitive photographic material comprises at least one gelatine-containing layer of improved mechanical properties which comprises a polyether-polyurethane which is the reaction product of (i) a polyether glycol, or a polyester of a polyesteramide of an aliphatic dicarboxyl acid, the said reactant having at least two terminal hydroxy groups, (ii) with a diisocyanate and if desired (iii) a diol, hydrazine, adiamine or an amino alcohol as chain lengthening agent or water as chain linking agent the said compounds containing at least two active hydrogen atoms, at least one of the reactants containing at least one tertiary nitrogen atom which has been converted into an ammonium nitrogen atom by the action of (iv) alkylating or substituted alkylating agents or organic or inorganic acids.  Examples relate to the use of polypropylene, adipic acid/hexane diol/neo pentyl glycol polyester and adipic acid ethylene glycol polyester as reactant (i); tolylene diisocyanate, diphenyl methane-4:4-diisocyanate and 1,6-hexane-diisocyanate as reactant (ii); N - methyl - diethanolamine, N - butyl - diethanolamine as reactant (iii); and formic acid, acetic acid, hydrochloric acid, dimethyl sulphate and methyl chloride as reactant (iv).  The gelatine layer may be a filter layer or an emulsion layer and may contain couplers and gelatine hardeners, e.g. formalin.
Patent GB-695508-A (GB)
Title: Improvements in or relating to bags, boxes, cases or the like
IPC: A45C5/02
Filed: 1951-06-18
Abstract: 695,508. Cases, bags. REITZEL, G., [trading as DRESCHER & KIEFER [Firm of]. June 18, 1951 [June 21, 1950; April 13, 1951], No. 14394/51. Classes 18 and 133 A rim reinforcement for a case comprises a right angle section frame, one flange of which rests on an inturned rim of the case and the other carries projections which engage beneath the rim to lock the frame to the case. The projections may be pressed-out portions 14. The frame may engage over a lining (not shown) or a covering 6 of flexible material.
Patent GB-216342-A (GB)
Title: Improvements in or relating to closure means for jars
IPC: B65D45/18
Filed: 1923-06-01
Abstract: 216,342. Braden, W. E. June 1, 1923. Detachable stoppers secured by clips.-In a closure device for jars, especially glass jars with glass lids, tongues and spring clips formed separately from the jar or its lid and suitably retained in position serve respectively to retain a washer on the rim of the jar or its lid and to lock the jar and lid together. As shown in Fig. 1, tongues 4 and spring clips 7 are secured to, or formed integral with, a band 5 arranged around a jar 2 beneath the flanged mouth 6 thereof. The tongues 4 are of such a length that they can be bent over a washer 3 of cork &c. to secure it on the jar but do not extend over the entire width of the washer. The clips 7 are adapted to be moved outwards when the lid 1 is pressed into position and to spring on to the lid brim to Jock it in position. The band 5 may be replaced by wires engaging ridges formed in the tongues which are formed integral with the spring clips, or the wire may be spring wire shaped to form the tongues and clips, and several strands of wire may be combined to provide increased strength. If the jar has not a flanged mouth, the band 5 is prevented from rising by retaining bands which pass underneath the jar and have their ends secured to the band, or the ends mav be continued to form the tongues or spring clips, or both. The spring clips, tongues, and washer may be carried by the lid as shown in Fig. 6, a ring 13 being retained on the brim of the lid 1 by tongues 4 bent on the washer 3, and spring clips 14 with projecting fingers 15 to engage the flange 6 being attached to the ring 13. If the jar has a circumferential groove, the fingers 15 are shaped to fit therein.
Patent GB-865271-A (GB)
Title: Epoxidation
Filed: 1959-04-29
Abstract: Epoxy compounds are prepared by epoxidation of polymers possessing non-aromatic double bonds and not more than 30 carbon atoms per double bond, which boil at a temperature of not less than 50 DEG C. at normal pressure, and are liquid at the reaction temperature or soluble in inert organic solvents, by treatment of these polymers with percarboxylic acids, which have preferably been formed in the reaction of carboxylic acids and hydrogen peroxide, the epoxidation being carried out in the presence of an aluminium compound, prepared by dehydration of aluminium hydroxide, the composition and/or crystal structure of which lies in a range extending from Al2O32H2O to g -Al2O3.  The polymers epoxidized may be esters from unsaturated carboxylic acids and polyvinyl alcohol, polyesters from diols and dicarboxylic acids, in which at least two of the components in the esterification must be unsaturated, and polycyclohexenepolymethylenes.  The reaction temperature may lie in the range 20 DEG -100 DEG C., and at least 5% by weight of catalyst is used based on the starting material.ALSO:Epoxy compounds are prepared by epoxidation of compounds containing at least one olefinic double bond and not more than 30 carbon atoms per double bond and which boil at a temperature of not less than 50 DEG C. at normal pressure, by treatment of these compounds with percarboxylic acids, which have preferably been formed in the reaction of carboxylic acids and hydrogen peroxide, the epoxidation being carried out in the presence of an aluminium compound, prepared by dehydration of aluminium hydroxide, the composition and/or crystal structure of which lies in a range extending from Al2O3.2H2O to g -Al2O3.  The dehydration of aluminium hydroxide is preferably effected at temperatures from 200 to 800 DEG C. resulting in Al2O3. 2H2O, a -Al2O3.H2O (boehmite) or g Al2O3 or mixtures.  The compounds epoxidised may be olefines, alcohols, aldehydes, ethers, carboxylic acids, esters, amides, nitriles or anhydrides.  The reaction temperature may lie in the range 20-100 DEG C, and at least 5% by weight of catalyst is used based on the starting material.
Patent GB-1138498-A (GB)
Title: Improvements in or relating to apparatus for producing cold at very low temperatures
IPC: F25B9/14
Filed: 1966-04-01
Abstract: 1,138,498. Refrigerating. PHILIPS GLOEILAMPENFABRIEKEN N.V. 1 April, 1966 [6 April, 1965], No. 14572/66. Heading F4H. Part of the flow path intercommunicating the compression and expansion spaces of a coldgas refrigerator is cooled by a further cold-gas refrigerator. As shown, cold is transferred from the low-temperature freezer 15 of a refrigerator A having a stepped displacer 5, 6 to the intermediate freezer 33 of a similar refrigerator B via a condensation-evaporation system 40. A second such system 42 transfers cold from the intermediate freezer 13 to a heat exchanger 43 disposed between the two parts 32<SP>1</SP>, 32<SP>11</SP> of the high-temperature regenerator of refrigerator B. Refrigerator A operates at a substantially higher mean pressure than refrigerator B, operating temperatures and pressures being given, and employs He<SP>3</SP> as opposed to H 2 . Systems 40, 42 employ hydrogen and nitrogen respectively. In a first modification (Fig. 2, not shown), each refrigerator has a two-step displacer and three condensation-evaporation systems employing hydrogen, nitrogen and methane are used to transfer cold. In a second modification (Fig. 3, not shown), the higher temperature refrigerator has a one-step displacer and the other an unstepped displacer, one condensationevaporation system employing hydrogen being used. Material of good thermal conductivity may be used in place of the or each condensation-evaporation system.
Patent GB-1431481-A (GB)
Title: Circuit arrangement having an amplitude and frequency dependent transfer function
IPC: G11B20/24
Filed: 1973-03-27
Abstract: 1431481 Compressors and expanders PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 27 March 1973 [30 March 1972 8 Feb 1973] 14589/73 Heading H4R In a non-linear circuit for a noise reduction system the current through a series combination of a first impedance Z 1 , a transistor T 1  and a second impedance Z 2  is amplitude controlled by a signal input to the transistor control electrode V i  and utilized in a network G to control a second transistor T 2  so as to make the impedance Z 2  dependent on the amplitude and frequency of the series current. The circuit and its complement are used for recording and playback of video and/or audio signals. As shown the network is switchable S between compression and expansion modes a, b and includes identical buffer amplifiers B 1 , B 2 , high pass filter F 1 , non-linear filter F 2 , amplifiers A 1 , A 2  and a rectifying detector D which generates a control voltage to vary the cut off of filter F 1  and/or the gain of amplifier A 1  according to the amplitude and frequency of the input V i . In a simplification (Fig. 6, not shown) B 1 , B 2  and S are omitted and A 2  is a frequency-dependent amplifier, either or both F 1  and A 1  being controlled by the detector D. Circuit details for both arrangements are described (Figs. 7, 11, not shown). In a modification (Figs. 4 and 5, not shown) in one mode the circuit is as Fig. 10, but is switched to the complement by converting T 1  to a constant current configuration and inserting an impedance Z 1 <SP>1</SP> and transistor (T 5 ) in parallel with Z 2  to form two limbs in parallel with respect to the supply but in series with respect the the input so that the current ratio in the two limbs varies according to the input.
Patent GB-1152974-A (GB)
Title: A process for Preparing Solid Specimens which have a Large Specific Surface
Inventor: VEYRE RENE
IPC: G01N1/28
Filed: 1967-03-30
Abstract: 1,152,974. Preparing samples for spectroscopic examination. COMMISSARIAT A L'ENERGIE ATOMIQUE. March 30, 1967 [March 30, 1966], No. 14649/67. Heading G2J. To prepare a thin specimen 5, Fig. 3 having a large specific surface, for use in absorption micro-spectrophotometry for studying chemical adsorption, corrosion, catalysis, solid decomposition kinetics, action of a liquid on a solid or other modifications to a solid substance, the solid in powder form is compressed within a passage extending between opposite faces of a metal strip 1. The strip 1 may then be clamped between a pair of cylinders 6, 7, which are closed by windows 10, 11, and to which gases can be admitted via valve 12 and apertures 8, 9.
Patent GB-1225036-A (GB)
Title: Making foundry cores and moulds
Inventor: EDWARDS ALBERT
IPC: B22C15/24
Filed: 1968-03-27
Abstract: 1,225,036. Mixing apparatus. BRITISH CAST IRON RESEARCH ASSOCIATION. 19 March, 1969 [27 March, 1968], No. 14654/68. Addition to 1,133,255. Heading B1C. [Also in Division B3] Sand for making foundry moulds or cores (see Division B3) passes from a hopper 54 under the control of a single pneumaticallyoperated gate valve 55 into two mixers 35 (36) mounted side-by-side, one being fed with liquid resin and the other with liquid catalyst for hardening the resin, through pipes 58 from metering pumps. A shaft 38 in each mixer carries inclined or part-helical blades 39 and is stopped automatically by disengagement of a clutch (there may be one to each shaft) so that a measured quantity of mix is fed through the mixer to one of two blowing chambers 64 (65). The mixes are blown into a reaction chamber 73 for intermixing before passing to a coreblowing head for discharge into a core-box. The mixers may be of the kind described in Specification 1051651. The gate valve 55 may have different sized apertures to apportion the sand between the mixers. The shafts 38 are driven by an electric motor 53 through a clutch and brake assembly 48. Each shaft may however be associated with an independent clutch but is driven by way of a gear box 44 and couplings 41, 43. Magnets 60 and a switch 61 count the revolutions. A gate valve 66 at the upper ends of the blowing chambers 64 (65) is controlled by a pneumatic cylinder 67. All the operations are controlled electro-pneumatically.
Patent GB-107705-A (GB)
Title: Improvements in and relating to Holders and Supports for Incandescent Electric Lamps.
Inventor: GABELL HERBERT CHARLES
IPC: F21V21/26
Filed: 1916-10-16
Abstract: 107,705. Gabell, H. C. Oct. 16, 1916. Supporting.-An electric-lamp support is provided at one end with a helical spring socket A<1> for receiving the screwed lampholder, and at the other end with a helical spring connector G<2> of the same diameter and pitch as the screw on the lampholder for insertion into the socket of pocket lamp cases. The joints of the links A, D, G of the support consist of helical springs A<2>, D<1> engaging one another, the interior of one of the helical springs D<1> on each link being of the same pitch and diameter as the external thread on the electric-lamp holder. An insulated lead J, preferably passing through the joints, connects insulated contact studs C, I inserted respectively in the spring socket A<1> and the spring connector G<2>, the circuit being completed through the links A, D, G. The support may be lengthened or shortened by adding or removing a link.
Patent GB-1035291-A (GB)
Title: Improvements in or relating to ground coverings for yieldable terrain
IPC: E01C9/08
Filed: 1963-04-11
Abstract: 1,035,291. Temporary road surfaces. PINTSCH BAMAG A.G. April 11, 1963 [April 12, 1962; Jan. 12, 1963], No. 14715/63. Heading E1G. A structure for a temporary road surface comprises articulated surface and support members. Surface members may be regular polygons, preferably triangular, comprising top 1a and bottom 1b plates welded together with tubular stiffening spacers 1c which may project to provide a gripping surface. The surface members are provided with balls 3 at their corners to engage sockets of a sextuple ball and socket joints 5, 6, formed at the centres of circular or polygonal support members. The support members are simularly formed of top and bottom plates, the top plate being conical or the surface and support members may be identical with provision for the central attachment of the socket joint 5, 6. The socket joint may comprise a lower section 25 locked to the support member by T-slots and tongues 28, 31 and an upper section 26 locked to the lower section by a bayonet joint 33, 34 having a pin 32 extending into a central bore 27 to lock the T-slot connection. The T-tongues may be replaced by L-tongues and the assembly locked by a separate detent or by an eccentric pin 32. The ball and socket joint members 25 may alone form the support members, Fig. 9 Polyonal ramp members may be connected at the ends of the roadway formed from the surface members.
Patent GB-792552-A (GB)
Title: Improvements in or relating to television camera tubes
IPC: H01J29/41
Filed: 1956-05-11
Abstract: 792,552. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 11, 1956 [May 14, 1955; March 14, 1956], No. 14720/56. Class 39(1). A television camera tube comprises an image electrode 5 of conductive glass, on which a charge pattern corresponding to a luminous image projected on to a photo-electric cathode 7 is formed by secondary emission produced by electrons emanating from the cathode 7, the electrode 5 being provided on an image side with a thin secondary emissive coating 15 consisting mainly of a sodium and/or lithium halogenide, particularly a fluorine compound and preferably cryolite. The coating, about 500‹A. thick is precipitated from the vapour phase and a small quantity of a trivalent fluorine binding metal, e.g., antimony at a concentration of about one per cent by weight is added to bind the fluorine atoms. The tube contains caesium not only in the cathode 7 but in a gold layer 16 around the neck of the side tube 9, the gold serving as a store for caesium and also ensures that no excess caesium vapour is maintained in the tube.
Patent GB-1345545-A (GB)
Title: Photographic process for preparing a screen structure for a cathode ray tube
IPC: H01J9/227
Filed: 1971-05-13
Abstract: 1345545 Photo-electric control of color television screen process R C A CORPORATION 13 May 1971 [1 June 1970] 14813/71 Heading G1A In an exposure method for preparing a luminescent screen for a colour television tube by exposing a photo-sensitive luminescent coating on the inner surface of a tube face plate through an apertured mask to a source of light, light of a predetermined intensity (¢-¥ of the average during exposure) is projected initially through the mask on to the screen, and after a delay in which a photo-electric measuring head is moved into position adjacent the screen, the light intensity is adjusted according to the measuring head output to give a desired total luminous flux incident on the film during its period of exposure. The apparatus is the same as that described in Specification 1322441 and the control is effected by a silicon controlled rectifier. A delay of 0À4- 2 seconds is exemplified. Photo-sensitive film 12, Fig. 1, is exposed through apertured mask 13 and an opened shutter 22, to light from lamp 19 and the intensity of light detected after a predetermined stabilizing time by a light sensor assembly 28, which is moved into the position shown simultaneously with the opening of the shutter 22, is used, after a comparison with a reference, to adjust the lamp intensity by controlling silicon rectifiers in its A. C. supply.
Patent GB-475934-A (GB)
Title: Improvements in and relating to acetylene generators
IPC: C10H9/00
Filed: 1936-05-26
Abstract: <PICT:0475934/IV/1> <PICT:0475934/IV/2> An acetylene generator comprises an open-topped water container 1, an open-based bell-member consisting of a depending tube 6 terminating in a flared bell mouth 7 and closed at the top by a detachable cap 9, a tubular cage 23 for carbide detachably fitted in the tube 6 and protruding into the bell-mouth 7, and a fire trap 15 consisting of a water seal 14 through which the gas delivered from an outlet at the top of the tube 6 is passed before entering the pipe-line.  The base of the container 1 is preferably conical and fitted with a sludge valve.  The cage 23 is filled with carbide, and lowered down the tube 6, where it rests upon retaining straps 26.  The container 1 is then filled with water to the level 27.
Patent GB-1286751-A (GB)
Title: Process and assemblies for making couplings which are capable of transmitting high mechanical stresses between an armoured flexible member and a rigid connecting element
Inventor: CHEVALIER ANDRE
IPC: B21D39/04
Filed: 1970-03-26
Abstract: 1286751 Drawing INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 26 March 1970 [3 April 1969] 14850/70 Heading B3Q [Also in Divisions F2 and H2] A die 37 is displaced by a piston 49 of a jack 48 to compress metal wire armourings of a flexible pipe 1 between a compression sleeve 11 and a rigid tubular element 9, provided with a jagged external edge, such that the armourings penetrate anchoring rings 10, preferably of copper, and the compression sleeve. The compression sleeve 11 is held axially by two half rings 44 secured by a ring 46 on to a screwthreaded extention 26 of the connecting member 9 to prevent its lengthening or axial movement relative to the connecting member.
Patent GB-959067-A (GB)
Title: Improvements in or relating to water closet cisterns
Inventor: HARRISON RONALD GEORGE
IPC: E03D1/012
Filed: 1962-04-17
Abstract: 959,067. Supporting cisterns. GENERAL ELECTRIC CO. Ltd. April 17, 1963 [April 17, 1962], No. 14874/62. Heading E1C. In a flushing cistern 1 the outer surface of the wall 4 has channels 6 each extending as shown and having an undercut edge, and brackets 3 are secured to a wall 3 or like support member and located in the edges for securing the cistern 1 thereto. The edges may be bevelled. A support portion 7 forms the upper end of each channel 6 having an undercut bevel edge 9 a cut out extending towards the cistern upper edge to form a continuation of a channel 6 and a semi-circular closed end, with which the bracket 3 suitably mates. The wall 4 of the cistern 1 is thickened to form the channels 6. The top edge of the cistern 1 is notched during moulding at 13 above the centres of the cut-outs 8.
Patent GB-1111167-A (GB)
Title: Solid aluminum capacitor
IPC: H01G9/04
Filed: 1966-04-04
Abstract: 1,111,167. Electrolytic capacitors. P. R. MALLORY & CO. Inc. 4 April, 1966 [17 May, 1965], No. 14917/66. Heading H1M. In the manufacture of a solid electrolytic capacitor, an aluminium anode is etched in a sodium chloride etch bath containing 3 to 15% of boric acid or a borate, whereby an etch ratio of at least 100 to 1 is achieved and the surface of the anode has intercommunicating pits and after a dielectric oxide layer has been formed, preferably using phosphoric acid solution, the coated anode is treated for at least four minutes in boiling water containing up to 2% of an inorganic phosphate or chromate to form a film protecting the dielectric from subsequent attack by water or manganous nitrate. The anode may be flat, rolled, folded or wire. As shown, etched and formed aluminium foil 11 has a manganese dioxide layer 12 applied to the protected dielectric by pyrolysis of manganous nitrate, a graphite layer (not shown) between the manganese dioxide and silica epoxy cathode layer 13 and encapsulating epoxy resin layers 16, 17. Encapsulation may be carried out by supporting the capacitors in slots in a channel member, pouring in encapsulating material, curing it and slicing the individual capacitors (Figs. 4, 5, not shown).