baber/WOPTO huggingface dataset:
Patent GB-1530989-A (GB)
Title: Telephone exchange with attenuation equalisation means
IPC: H04B3/06
Filed: 1977-09-27
Abstract: 1530989 Attenuation equalizing arrangements INTERNATIONAL STANDARD ELECTRIC CORP 27 Sept 1977 [1 Oct 1976] 40138/77 Heading H4K In a telephone exchange, e.g. a PBX NST, having a variable-gain amplifier V for equalizing losses in the crosspoint array KF, a switchable shunt resistor RQ, S is connectible across the amplifier and the signal level during calls is determined by the fact that for short exchange lines AL, the resistor is connected in circuit, for normal exchange lines the amplifier is in circuit and the resistor is out of circuit, while for long exchange lines the resistor is out of circuit and the gain of the amplifier is increased.
Patent GB-1518232-A (GB)
Title: Method and apparatus for extracting oil from oil-bearing solid material
IPC: C10G1/02
Filed: 1976-09-28
Abstract: 1518232 Oil extraction CRYO MAID Inc 28 Sept 1976 [10 Oct 1975] 40192/76 Heading C5E Oil and other hydrocarbons may be extracted from an oil-bearing solid material by advancing discrete individual pieces of the material along a pathway in a vessel evacuated to a pressure of no more than 50 torr, heating the material to a temperature of 600 to 900‹F to cause the oil and other hydrocarbons therein to be liberated as a vapour and thereafter selectively condensing the oil on at least one condenser surface in communication with the evacuated vessel and recovering the oil. The solid material is preferably oil shale but may also be tar sand, coal and lignite. Preferably the material is pre-heated to a temperature of less than 600‹F to remove water and hydrocarbons which vaporize at temperatures below 600‹F. The condenser surfaces are preferably maintained at varying temperatures to permit fractional condensing and recovery of the oil and may be positioned inside and/or outside of the evacuated vessel.
Patent GB-1423205-A (GB)
Title: Tube haul-off machine
IPC: H04R17/08
Filed: 1974-09-16
Abstract: 1423205 Extruding GRANGES ESSEM PLAST A/S 16 Sept 1974 [5 Nov 1973] 40270/74 Heading B3P [Also in Division B8] A tube haul-off machine for an extruded tube comprises at least one pair of annular members 2a, 2b which rotate in opposite directions and each of which carry a set of rollers 4 whose axes are inclined to the tube axis C to pull the tube through the machine. The radial position of the rollers is variable by using various bores 5 in the members 2a, 2b or by having radial slots in the members. The members are rotated by a chain or belt drive 8a, 86, 8c, 9a, 9b from a motor. The members are supported on rollers 3 in the frame 1a, 1b of the machine.
Patent GB-1121767-A (GB)
Title: Apparatus for thickness measurement
IPC: B06B1/06
Filed: 1966-09-09
Abstract: 1,121,767. Ultrasonic testing; ultrasonic couplings. DR. J. U. H. KRAUTKRAMER GESELLSCHAFT FUR ELEKTROPHYSIK. 9 Sept., 1966 [11 Sept., 1965], No. 40404/66. Headings H4D and H4J. In an ultrasonic system for measuring the wall thickness of a specimen or the depth of a flaw therein, separate main transmitting and receiving transducers electrically and acoustically isolated from one another by an insulating barrier are acoustically coupled to a surface of the specimen, and an auxiliary transducer is positioned closer to the surface than are the main transducers to provide a reference ultrasonic echo signal from the surface. As shown in Fig. 3, transmitting transducer 1a and receiving transducer 2a are coupled by synthetic resin blocks 4 to specimen 6 and an auxiliary transmitting transducer 16 is secured by adhesive to the receiver coupling block and connected in parallel with transducer 1a to provide a distinct echo pulse (21, Fig. 4) from surface 6a of the specimen which occurs before the weak diffuse echo (9, Fig. 4) from surface 6a resulting from a pulse transmitted by transducer 1a. The distinct echo provides a time reference for measurement of the echo-time of a pulse transmitted by transducer 1a and reflected by a flaw or the specimen surface 17. Alternatively, the auxiliary transducer 16 may be connected in parallel with the receiving transducer 2a and positioned adjacent the transmitting transducer 1a. Instead of using solid coupling blocks 4, the three transducers and insulating barrier may be arranged in a bath of water to provide acoustic coupling between the specimen and the transducers.
Patent GB-1045459-A (GB)
Title: Device for drawing a member such as a curtain in opposite directions
IPC: A47H5/03
Filed: 1965-09-23
Abstract: 1,045,459. Curtain drawing devices, H. BEER. Sept. 23, 1965 [Sept. 23, 1964], No. 40600/65. Heading A4B. In a curtain drawing device having a hollow curtain rail 1 with supporting elements 14 in a channel 2 and auxiliary channels 3 having a resilient pliable drawing element 5 such as a cord movable in an endless track under the influence of a driving wheel of an electrically operated system the two ends of the cord are joined by coupling members 7 interconnected by a rod 9 which allows relative displacement of the members 7 due to longitudinal stretching of the cord.
Patent GB-1195245-A (GB)
Title: Bonded Abrasive Article
IPC: B24D3/02
Filed: 1967-09-06
Abstract: 1,195,245. Synthetic resin abrasive compositions. CARBORUNDUM CO. 6 Sept., 1967 [8 Sept., 1966], No. 40650/67. Heading C3R. [Also in Division C4] A bonded abrasive article having an abrasive portion comprising abrasive grain, a resin bond and a finely divided molecular sieve adsorbent whereby volatiles produced by the resin bondforming reactions are adsorbed so that the abrasive portion is substantially free of pores and voids. The abrasive material may be diamond, silicon carbide, quartz, fused alumina and/or combinations of these with other abrasive materials. Suitable resins are condensation-type resins such as phenol-formaldehyde resins, phenol-furfuraldehyde resins, resorcinol resins, furfural resins, urea-formaldehyde resins, melamine resins and polyether resins and polyamide resins. A raw batch for the manufacture of such articles comprises 37-72% of abrasive grain, 12-28% of resin, up to 35% of a filler and 2-30% of a molecular sieve.
Patent GB-1088641-A (GB)
Title: Method for separation of multicomponent gas mixtures
Inventor: BERGO BORIS GEORGIEVICH
IPC: F25J3/02
Filed: 1964-10-06
Abstract: 1,088,641. Cold separation of gas mixtures. NAUCHNO - ISSLEDOVATELJSKY INSTITUTE SINTETICHES-KIKH SPIRTOV I ORGANICHESKIKH PRODUKTOV. Oct. 6, 1964, No. 40674/64. Heading F4P. In a process for separating a multi-component gas mixture, e.g. nitrogen, methane, ethane and C 3  to C 7  hydrocarbons into two groups of differing volatility and comprising passing compressed feed gas through a line 7 into the base of a distillation column 1 and up the tube space thereof in indirect heat exchange with condensate having been withdrawn from the base of the column through a line 8, expanded at a valve 17 and fed to the head of the shell space of the column in which said expanded condensate is in part vaporized to form distillation vapour, the latter is withdrawn through a line 9, compressed at 3, condensed in a watercooled heat-exchanger 4 and returned through a line 16 to the base of the column 1; produce high volatile group of components being withdrawn as gas from the head of the tube space through a line 14 whilst the low volatile group is withdrawn as liquid from the base of the shell space through a line 13. The vapour in line 9 cools an exchanger 2 in condensate line 8, and product gas in line 14 cools an exchanger 5 traversed by the compressed distillation vapour. In a modification the gaseous high volatile produce group prior to further separation is liquefied in a heat-exchanger 6, Fig. 2 (not shown), cooled by passage therethrough of a portion of the condensate withdrawn from line 8 and expanded at a valve 18 and the soevaporated condensate is returned through a line 20 to the suction end of feed gas compressor.
Patent GB-888713-A (GB)
Title: Vapour generating plant
IPC: F22D11/00
Filed: 1960-11-25
Abstract: 888,713. Feedwater supply systems. SULZER FRERES S.A. Nov. 25, 1960 [Nov. 26, 1959], No. 40684/60. Class 123(2) In a steam generating plant in which feedwater is supplied from a tank 1 by a pump 2 at the highest pressure required to a first preheater 3 and then, through a distributer 4, in parallel to the preheaters 5, 5<SP>1</SP>, 5<SP>11</SP> associated respectively with low, medium, and high pressure steam generators 7, 71, 7<SP>11</SP> serially through which heating medium, e.g. CO 2  gas from a nuclear reactor, flows in a heat exchanger 11 in the direction of an arrow 10 the preheaters 5, 5<SP>1</SP>, 5<SP>11</SP> are connected to the steam generators 7, 7<SP>1</SP>, 7<SP>11</SP> respectively by pressure dropping throttle values 6, 6<SP>1</SP>, 6<SP>11</SP> respectively. Steam from superheaters 8, 8<SP>1</SP>, 8<SP>11</SP> of the respective steam generators 7, 7<SP>1</SP>, 7<SP>11</SP> passes through valves 9, 9<SP>1</SP>, 9<SP>11</SP> to the three stages of a steam turbine 12 from the condenser 13 of which it is returned as water by a pump 14 to the tank 1. As shown in Fig. 2 to achieve equalizing effect the preheaters 5, 5<SP>1</SP>, 5<SP>11</SP> are interconnected by cross pipes 15, 16. In a modification, Fig. 3, not shown, first and second preheater sections are common respectively to all, and to the medium and high pressure steam generators, the latter being provided with a further preheater section. Steam generators may be employed which are of the natural or forced circulation types.
Patent GB-937208-A (GB)
Title: Improvements in or relating to pick-ups for gramophone record playing apparatus
IPC: H04R1/16
Filed: 1959-12-01
Abstract: 937,208. Stylus arms and mountings. INDUSTRIES MUSICALES ET ELECTRIQUES PATHE MARCONI. Dec. 1, 1959 [Dec. 1, 1958], No. 40715/59. Class 40 (2). [Also in Group XXXIX] A stylus support 34, Figs. 1, 2 in the form of a hollow rigid tube is provided with two mutually perpendicular flats 37, 38 and a flattened end portion, which end portion is clamped to a plate 32 by lugs 39.
Patent GB-1502624-A (GB)
Title: Wiring pens
IPC: H05K13/06
Filed: 1975-10-06
Abstract: 1502624 Wire dispenser VERO ELECTRONICS Ltd 6 Oct 1976 [6 Oct 1975] 40824/75 Heading B8M A wire 23 passing through a bore 15 and a slot 14 of a wiring pen 10 is gripped between a slider 16 and a tongue 19 when the slider 16 is moved towards the tongue 19 in order to be fed to the tip 11 of the wiring pen 10. One part of the bore 15 communicates with one end of the slot 14, the other end of which communicates with the other part of the bore 15 which is towards the tip 11. The slider 16 is slidable in the slot 14 and the tongue 19 is connected to the slider 16 via a flexible connection thereby facilitating relative movements. The wire passes through the passage defined between the slider 16 and the tongue 19 and through a hole 20 provided in the flexible connection portion. The wire is an electrical wire supplied by a roll 21 mounted on lugs 13 of the pen 10. The wire 23 can be snapped off, if desired, after being gripped between the slider 16 and the tongue 19. A resilient member 22 of the pen 10 prevents the slider from occupying a widened region of the slot 14 but can be flexed to allow it to be disengaged from the slot 14 to allow the wire 23 to be threaded through the passage. The slide 16 is subsequently replaced in the slot 14. The tip 11 can be removable.
Patent GB-1100817-A (GB)
Title: Improvements in electro-magnets
Inventor: TEDHAM LESLIE THOMAS
IPC: H04L13/18
Filed: 1966-09-13
Abstract: 1,100,817. Electromagnets. CREED & CO. Ltd. 13 Sept., 1966, No. 40877/66. Heading H1P. [Also in Division H4] An electromagnet has a mechanically-assisted armature comprising a first spring capable of presenting the armature to the electromagnet, a second spring capable of overcoming the first spring and returning the armature to its unattraoted position when the magnet is de-energized, and mechanically operable means for periodically positively disabling the second spring to enable the first spring to present the armature to the electromagnet. As shown, the armature 3 is urged towards the electromagnet by a spring 6 but is prevented from moving by an arm 7 of a bell-crank lever which is held in position by a stronger spring 9. A cam 11 is arranged so that it periodically moves the arm 12 of the lever, removing the force of spring 9 from the armature which is moved towards the electromagnet by spring 6. Further movement of the cam re-applies the force of spring 9 to the armature. If the electromagnet is unenergized the armature is returned to its unattracted position, but if the electromagnet is energized the force of spring 9 is insufficient to overcome the combined force of spring 6 and the attraction of the electromagnet and the armature therefore remains in the attracted position. A mechanism for storing the position of the armature comprises a sensing lever 19 urged towards an extension 20 of the armature by a spring 18 and having an arm 15 which contacts a cam 17. As cam 17 rotates, lever 19 moves towards the extension 20 which it contacts if the armature is in its unattracted position and lever 19 is thus prevented from rotating further. If the armature is in its attracted position, however, lever 19 passes under extension 20 and continues to rotate until its arm 15 contacts and rotates a memory member 13. An assembly of five electromagnets each having a mechanically assisted armature and sensing and memory elements, as described above, may be used to decode the signals in a printing telegraph receiver, the memory members being periodically reset.
Patent GB-986021-A (GB)
Title: Improvements in electrical installations
IPC: H02G5/06
Filed: 1962-10-30
Abstract: 986,021. Supporting bus - bars. W. NICH. OLLS. Oct. 29, 1963 [Oct. 30, l962], No. 40926/62. Heading H2C. Pairs of bus-bars, 10-13, are supported between slots 20 in pairs of transverse insulating bars 16. The insulating bars are of syntheticresin bonded paper and are clamped together by bolts 19. The ends of the insulating bars rest in apertures 23 in brackets 17 into which project ears which locate the rear strip accurately but allow the front strip to be positioned according to the size of the bus-bar. Alternatively, the front strip may be located accurately so that, if bars of two different sizes are used, their front faces will lie in a common plane. The entire assembly is mounted in a trunking 14 and supported by brackets 22 which are bolted to screwthreads on the internal bracket 17. The lid 27 of the trunking is bolted to lugs 28 on the same brackets. Instead of providing brackets 17, the sides of the trunking may be apertured to carry the insulating strip ends. A construction of bracket is described (Fig. 2), not shown, in which flanges are formed around the periphery of aperture 23. These flanges grip the insulating strip and stop the bus-bar system rattling.
Patent GB-1068419-A (GB)
Title: Improvements relating to heat controlled electric smoothing irons
Inventor: DUFF GEOFFREY ERNEST
IPC: D06F75/26
Filed: 1964-10-08
Abstract: An electric iron comprises an electric circuit including the sole plate heating element (1) and a solid state device (8) the average current through which is responsive to an electric characteristic sensitive to the temperature of a control element (11) adjacent the sole plate to control the current to element (1), the device being placed where it is cool compared with the sole plate.  As described the device (8) is a silicon controlled rectifier and element (11) is a thermistor.
Patent GB-1489825-A (GB)
Title: Building boards
IPC: E04C2/288
Filed: 1977-01-10
Abstract: 1489825 Laminated building boards A PROCTOR & CO 10 Jan 1977 [10 Oct 1975] 41571/75 Heading B5N A building board comprises a layer 2 of plasterboard bonded intimately to a layer 3 of an extruded, expanded chemically foamed polystyrene. Bonding may be effected by a waterproof adhesive and the free major surface of the polystyrene layer may be provided with indentations which may comprise a series of substantially parallel grooves and/or a reticular arrangement of grooves. The indentations may be formed prior to bonding using an embossing roller which may be arranged to co-operate with another roller to form a nip through which the polystyrene layer is fed during progress into or through apparatus applying adhesive to the other major surface of the polystyrene layer.
Patent GB-1346879-A (GB)
Title: Polyepoxide-polysiloxane compounds processes for their manufacture and their use
IPC: C08L63/00
Filed: 1972-09-07
Abstract: 1346879 Polyepoxide - polysiloxane compounds CIBA-GEIGY AG 7 Sept 1972 [16 Sept 1971] 41591/72 Headings C3T C3S and C3B  Linear or branched polyepoxide-polysiloxane compounds of the Formula I: wherein Z and Z<SP>1</SP> are residues obtained by removing the OH group of a cycloaliphatic epoxide-alcohol which possesses at least one epoxide group on a cycloaliphatic ring or ring system and at least one OH group, n is at least 1, preferably 2-15, and R<SP>1</SP>, R<SP>11</SP> are alkyl, alkenyl, aralkyl aryl, cycloalkyl, alkoxy or aroxy radicals, or -O-Z, or the radical are prepared by esterifying or trans-esterifying polysiloxanes of the formula where R is hydrogen or a C 1-4  alkyl radical, with cycloaliphatic epoxide-alcohols as defined above, preferably in the presence of a catalyst selected from quaternary ammonium salts, titanium salts of organic acids, aluminium halides and boron halides. The polysiloxanes used preferably contain 2-4 hydroxyl and/or alkoxy radicals per molecule, and the cycloaliphatic epoxide-alcohol is preferably a monoepoxymonohydroxy compound. The compounds of Formula I can be converted to an insoluble and infusible cross-linked product by reaction with conventional epoxide curing agents and optionally a curing accelerator, many examples of which are listed. The compounds can be mixed before curing with other polyepoxide compounds, curable synthetic resins such as aminoplasts or phenoplasts and conventional modifiers such as extenders, fillers, reinforcing agents, pigments, dyestuffs, organic solvents, plasticizers, flow control agents, thixotropic agents, flame-proofing substances and mould release agents, many examples of which are listed. The compounds of Formula (I) can be partially esterified with carboxylic acids such as higher unsaturated fatty acids. In the examples compounds are prepared from a methoxy-containing methylphenylpolysiloxane and either 3,4-epoxycyclohexylmethanol or [2-(3<SP>1</SP>,4<SP>1</SP>-epoxycyclohexyl) - 4 - hydroxy - methyl - 1,3 - dioxolane] in the presence of tetramethylammonium chloride as catalyst. The compounds are cured using hexahydrophthalic anhydride and a solution of sodium metal in 2,4-dihydroxy-3- hydroxymethyl pentane. Uses.-Surface protection; electrical insulations; building industry; paints; lacquers; compression moulding compositions; sintering powders; dipping resins; casting resins; injection moulding formulations; impregnating resins and binders; adhesives; tool resins; laminating resins; sealing and filling compositions; floor covering compositions; binders for mineral aggregates.
Patent GB-1446106-A (GB)
Title: Melt spinning conjugate fibres
IPC: D01F8/16
Filed: 1974-09-25
Abstract: 1446106 Polyurethane conjugate fibre MONSANTO CO 25 Sept 1974 [26 Sept 1973 15 July 1974] 41643/74 Heading B5B In the spinning of a conjugate filament comprising a polyurethane as one component and a hard polymer, e.g. a polyamide or polyester, as a second component the polyurethane is heated immediately prior to melt spinning to a temperature within the range and 255 C. to form a molten stream. The polyurethane is formed from a polymeric glycol or hydroxy-terminated polyesters or polyethers of mol. wt. 800-3000 using 4À6-8À8 mols. of an aromatic diisocyanate per mol. polymeric glycol and sufficient low molecular weight polyol to provide an NCO/OH ratio of between 0À96 and 1À04 to 1.
Patent GB-1319207-A (GB)
Title: Tape head mounting
IPC: G11B5/56
Filed: 1971-09-08
Abstract: 1319207 Transducer mounting arrangements MOTOROLA Inc 8 Sept 1971 [21 Jan 1971] 41792/71 Heading G5R A head mounting arrangement, e.g. in a tape cartridge player, permits of track-to-track movement of the head, as well as independent continuous altitude and azimuth adjustments, and comprises a bracket assembly 40 which receives the head 38 and is slidable along pins 47, 49, a rotatable cam 50 having a plurality of cam surfaces 52, and a ball bearing 48 interposed between the cam 50 and the bracket assembly 40, which is biased against the ball bearing 48 by a spring 54. Detection of a conductive strip on the tape operates a solenoid 58 to actuate a linkage which rotates the cam 50, thereby moving the head 38 from track to track. The head 38 is supported in a collar 44 which is rotatable with respect to a block 42 of the assembly 40 by means of a set screw 66, to provide azimuthal adjustment. The surface 46 of the collar 44 which contacts the ball bearing 48 forms an arc centred on the axis of rotation of the collar 44. A continuous altitude adjustment may be made by a screw 68 which moves the cam 50 against a spring 70.
Patent GB-900185-A (GB)
Title: Improvements in or relating to synchromesh devices for dog clutches of variable-speed gears
IPC: F16D23/06
Filed: 1958-12-29
Abstract: 900,185. Positive clutches. BAYERISCHE MOTOREN WERKE A.G. Dec. 29, 1958 [May 9, 1958], No. 41914/58. Class 80 (2). A double claw clutch comprises synchroniz. ing friction cones 12 having baulking teeth 13 and projections 14 engaged, with play, in recesses 15 in a hub 2 on which a clutch sleeve 4 is splined; and impact buffers If are provided between the projections and the walls of the recesses. The buffers may be secured to the projections or to the side walls of the recesses or they may line the base and side-walls of the recesses. The buffers serve merely to damp possible vibrations between the hub 2 and the synchronizing cones and do not otherwise affect operation of the clutch.
Patent GB-1503663-A (GB)
Title: Manually operable electrical switches
IPC: H01H13/62
Filed: 1975-02-19
Abstract: 1503663 Mechanical switches J A CRABTREE & CO Ltd 19 Feb 1975 [20 Feb 1974] 41983/77 Divided out of 1503662 Heading H1N The subject-matter of this Specification is identical with that described in parent Specification, but the claims are concerned with a switch operating device comprising a tiltable latch member which retains a rectilinearly movable switch operator in a depressed position and which is responsive to rotation of the operator whilst in its depressed position to allow the operator to return under the action of a spring to a retracted position.
Patent GB-1311596-A (GB)
Title: Flexible coating composition
IPC: C08L83/04
Filed: 1971-09-09
Abstract: 1311596 Organosiloxane compositions DOW CORNING CORP 9 Sept 1971 [23 Oct 1970] 42048/71 Heading C3T A curable composition comprises a mixture of (A) 40-60% wt. of a polydiorganosiloxane gum consisting of at least 90 mol per cent dimethylsiloxane units, 0-10 mol per cent methylphenylsiloxane units and 0-5 mol per cent methylvinylsiloxane units, the gum being terminated with an OH, dimethylvinylsiloxy, methylphenylvinylsiloxy or trimethylsiloxy group, where the trimethylsiloxy groups are the only terminating groups, methylvinylsiloxane units are present in the gum, (B) 40-60% wt. of a benzene soluble copolymeric siloxane consisting of dimethylhydrogensiloxy units (x), trimethylsiloxy units (y) and SiO 2  units (z) wherein the ratio of x : z is 0À4 : 1 to 1À2 : 1, the ratio of y : z is 1À5 : 1 to 2À2 : 1, the ratio of (x + y) : z is 2À4 : 1 to 3À0 : 1, and (C) at least one pbw Pt catalyst per million pbw of (A) and (B), the weight percentages of (A) and (B) being based on the combined weight of (A) and (B). Components (A) and (B) can be mixed in the bulk or in an organic solvent. Suitable gums (A) have viscosities of 5,000,000 to 50,000,000 cs. at 25 C. In the examples catalyst (C) is chloroplatinic acid and copolymer (B) is prepared from aqueous sodium silicate and (i) H(CH 3 ) 2 SiCl, (CH 3 ) 3 SiCl and (CH 3 ) 3 SiOSi(CH 3 ) 3 , (ii) H(CH 3 ) 2 SiCl, (CH 3 ) 3 SiCl, (iii) H(CH 3 ) 2 SiCl in organic solvents. Uses.-Flexible, scratch resistant coatings, e.g. on Al or Cu.