baber/WOPTO huggingface dataset:
Patent GB-1007531-A (GB)
Title: Signal transmission systems and apparatus for use therewith
IPC: H04B1/68
Filed: 1962-06-05
Abstract: 1,007,531. Vestigial sideband transmission system. WESTERN ELECTRIC CO. Inc. June 5, 1962 [June 16, 1961], No. 21577/62. Headings H3A and H3R. A vestigial side-band transmission system for transmitting data signals on lines of telephone grade comprises a transmitter with a filter for removing the low frequency components of the modulating signal, a suppressed carrier modulator, means for adding a carrier signal-shifted in phase by 90 degrees to the output of the modulator and for transmitting the resultant signal via a filter circuit which removes a large portion of one side-band and a receiver which includes a synchronous detector driven by a local oscillator locked in phase with the original carrier. The data signal is applied via high and low pass filters 31, 32 to a suppressed carrier modulator 33 which also receives an input from a carrier oscillator 34. A carrier signal shifted in phase by 90 degrees in unit 35 is inserted via hybrid circuit 36 in the frequency space in the output of the modulator provided by the removal of the low frequency components of the modulating signal and the resultant signal is applied to line via a vestigial filter 37. The received signal is applied via filter 40 and automatic gain control amplifier 41 to a synchronous detector 42 which also receives an input from local carrier oscillator 45. The quadrature carrier component of the received signal provides a lock-in signal for the local oscillator and the second harmonic of the carrier signal at the output of the detector is selected by amplifier 43 to provide the A.G.C. control voltage for amplifier 41. The demodulated signal is applied via filter 46 to a slicer circuit which includes a feedback circuit with a filter 48 having a characteristic complementary to that of filter 31 in the transmitter; this arrangement restores the low frequency components of the data signal.
Patent GB-1160246-A (GB)
Title: Improvements in or relating to Heat Insulating Material
Inventor: CHAMPION CUTHBERT LLEWELLYN
IPC: C04B30/00
Filed: 1966-05-16
Abstract: 1,160,246. Porous, heat insulating compositions. C. L. CHAMPION. 15 May, 1967 [16 May, 1966], No. 21628/66. Heading C1J. A free-flowing composition for the heat insulation of pipes comprises pellets of a rigid cellular aggregate of size 1/8 inch upwards and pulverised fuel ash which has been rendered hydrophobic and which has a specific surface of 2000-5000 sq. cm./gm. The fuel-ash can be treated with a gaseous organo-silicon compound in a fluidized bed or mixed with a soap or a fatty acid, e.g. steoric acid. When the ash does not contain sufficient calcium to react with the acid then up to 5% by weight of lime or magnesia can be added. The cellular aggregate can be either pumice or pelletized and sintered pulverized fuel ash and can be rendered hydrophobic with a soap or a gaseous organo-silicon compound. Copper stearate may be included to prevent penetration of earthworms.
Patent GB-499891-A (GB)
Title: Improvement in photoelectric surfaces
IPC: H01J40/06
Filed: 1937-08-05
Abstract: 499,891. Photo-electric cells. FARNSWORTH TELEVISION, Inc. Aug. 5, 1937, No. 21639. Convention date, Aug. 18, 1936. [Class 39 (i)] In the formation of a photo-electric surface in an envelope, an oxidized metal surface is formed, alkali metal is introduced in excess and oxygen is admitted until leakage due to excess alkali metal is destroyed and the optimum photo-electric sensitivity obtained. As shown, the cathode 2 and anode 3 are mounted in an envelope 1 connected to an exhaust tube 4 provided with a side tube and stopcock 5 for admitting oxygen. The cathode 2 is preferably of pure electrolytic silver rolled into sheet form, cleaned, and etched in a hydrogen flame so as to appear matte. The envelope is evacuated and the cathode oxidized by a discharge between it and the anode 3 until it passes through a series of colours to brown. The envelope is again evacuated and the alkali metal, such as caesium, distilled from the tube 6 in about twice the quantity normally required. Oxygen is then admitted until first the leakage is destroyed as indicated by electrodes 7, 8 or other convenient electrodes in circuit with an indicator 10, and is continued until the maximum photo-sensitivity is obtained. This is determined by testing the thermionic emission at the oven temperature by the indicating device 11, the photo-electric sensitivity.being at. its peak when the thermionic current is between zero and 100 milliamperes from a surface area of approximately nine square inches at 200‹ C.
Patent GB-1425731-A (GB)
Title: Electrical resistance unit
IPC: H01C1/02
Filed: 1973-05-07
Abstract: 1425731 Resistors IFO AB 7 May 1973 [23 May 1972] 21722/73 Heading HIS A resistance unit comprises an insulating casing 2 having a mounting hole 9 and an annular recess 6 in which is provided a resistance element 3 embedded in an insulating moisture-impervious mass 4. The element 3 is preferably a helical wire or a corrugated strip and has end terminals 5 which project from the mass 4. Casing 2 is preferably of ceramic material e.g. cordierite; alternatively glass, glass ceramic or heat-durable plastics material may be used. Further holes 9 may also be provided.
Patent GB-532809-A (GB)
Title: Improvements in coated magnesium or magnesium alloy articles and method for the production thereof
IPC: C23C22/60
Filed: 1939-07-26
Abstract: 532,809. Coating magnesium and magnesium alloys. DOW CHEMICAL CO. July 26, 1939, No. 21732.. Convention date, Aug. 12, 1938. [Classes 82 (i) and 82 (ii)] A corrosion-resisting coating is produced on articles of magnesium or its alloys by treating the articles with a solution of an alkali carbonate under pressure at a temperature above the boiling point and below 250‹C. The coating may be coloured by subsequent immersion in an aqueous solution of a dye. Magnesium alloys containing 0.3 per cent. of manganese and 4.0 per cent. of aluminium, and 0.7 per cent. of zinc, 0.2 per cent. of manganese and 6.5 per cent. of aluminium are referred to.
Patent GB-1507354-A (GB)
Title: Discoidal winding structure for dynamo-electric machines
IPC: H02K3/00
Filed: 1975-05-21
Abstract: 1507354 Windings for dynamo-electric machines CADADIAN GENERAL ELECTRIC CO Ltd 21 May 1975 [3 July 1974] 21736/75 Heading H2A In a discoidal winding structure 10 comprising a plurality of coils overlapped in a circular array, the array is subdivided into a plurality of winding segments, e.g. 11-14, each including a whole number of coils electrically interconnected and bonded together, adjacent segments having complementary mating surfaces so located that the end coils of the adjacent segments overlap one another as do the coils within each segment. The D.C. armature winding shown has four segments 11-14, adjacent segments having overlapping surfaces 47-53 and 54-60, Fig. 6. The surfaces are glued together. The segments may additionally be held together by resin bonded glass filament 64, Fig. 2, and by a tensioned band 18 holding commutator segments 17 in position. The winding may alternatively be an A.C. winding and may be on the rotor or stator of an axial air gap machine.
Patent GB-1136975-A (GB)
Title: Improvements in and relating to cabinets
IPC: F25D23/06
Filed: 1966-05-17
Abstract: 1,136,975. Refrigerators. G. BORGHI. 17 May, 1966 [18 May, 1965; 24 Sept., 1965], No. 21797/66. Heading F4H. A refrigerator cabinet comprises an outer casing made up of a number of panels 11, 12 and frame members 3, 12f, 13b, the edges of the panels being disposed in grooves formed in the frame members, an inner liner 2 and foamed plastics insulation which is formed in situ between and serves to unite the casing and liner. The liner may also be composed of panels and grooved frame members (Fig. 7, not shown), and the frame members may be inter-connected by tie-rods prior to foaming (Figs. 2, 4 and 7, not shown).
Patent GB-155341-A (GB)
Title: An improved machine for contracting and shaping sheet metal, tubes and the like
IPC: B21D17/04
Filed: 1919-09-05
Abstract: 155,341. Broady, W. Sept. 5, 1919. Angular bending; corrugating.-A plate or tube bending or corrugating machine has rolls C, C<1> mounted on fixed axes one above the other and a third roll d adjustable in a vertical direction for pressing the work against the lower roll. The machine is belt driven by means of pulleys G, G<1>, G<2>, and has a flat table A<2> convenient for supporting metal sheets when the edges are being bent. Fig. 4 shows the forms of rolls for grooving a sheet or tube, the roll C in this case acting as a guide or being removed if desired. The top or mouth of a metal pan or like article may'be drawn inwards in the machine.
Patent GB-1462477-A (GB)
Title: Isoxazoles substituted by one or two perfluoro alkyl groups and methods of obtaining these substances
IPC: C09K23/38
Filed: 1974-05-16
Abstract: 1462477 Perfluoroalkyl isoxazoles PRODUITS CHIMIQUES UGINE KUHLMANN 16 May 1974 [22 May 1973] 21853/74 Heading C2C Perfluoroalkyl isoxazoles of formulae where R F  and R<SP>1</SP> F , same or different, are each perfluoroalkyl groups C n F 2n+1 , where n is an integer 3-15, optionally substituted phenyl or C 1-7  alkyl groups and where at least one of the groups R F  and R<SP>1</SP> F  is a perfluoroalkyl group, are prepared by preparing isoxazolines of general formulµ by reacting a #-diketone with NH 2 OH.HCl in HCl medium in a C 1-4  alcohol medium with agitation at ambient temperature for at least 12 hours and heating at reflux for at least 1 hour then dehydrating the isoxazoline in a polyphosphoric acid medium by autoclaving at 150-220 C. for at least 24 hours. Amongst the examples N-pentadecafluoroheptyl - 5 - phenyl - 3 - isoxazole is prepared.
Patent GB-306424-A (GB)
Title: Improvements in cinematographic projectors
IPC: G03B1/22
Filed: 1927-08-19
Abstract: 306,424. Couade, M. Aug. 19, 1027. Kinematograph apparatus. - In claw-feed mechanism comprising a rocking lever 19 carrying a claw support 28 reciprocating upon it, the lever is rocked by a pin 17 on a rotating disc 15 and the claw support is reciprocated by a second pin 18 on the disc. The lever 19 may have an aperture bounded by arcs 20, 21 of comparatively large radius and by arcs 22, 23 of substantially the same radius as the pin 17, the arcs 20, 22 being connected by a curve 24 of comparatively small radius, and the arcs 21, 23 by a straight line 25 or by an are of comparatively large radius. The pin 17 successively engages thecurves as the disc 15 is rotated, and rocks the lever about its pivot 19<a>; the pin 18 may be carried on a hub 31 which also engages one of the curves during the rotation. Friction stops. 27, 27<1> and an adjustable stop 32 limit the movement of the lever. The claw support 28 is attached to the lever 19 in as free a manner as possible, and has a transverse slot 29 engaging the pin 18 to produce the reciprocation causing theclaw 30 to enter and leave the film perforations.
Patent GB-1033225-A (GB)
Title: Flying body composed of a plurality of rodlike or tubular basic elements having a streamlined cross-section
IPC: B64C37/02
Filed: 1964-05-27
Abstract: 1,033,225. Self-propelled missiles; dropping from heights. HIRTENBERGER PATRONEN-, ZUNDHUTCHEN-, UND METALLWABENFABRIK A.G. May 27, 1964 [June 10, 1963], No. 21959/64. Headings F3A and F3C. [Also in Division B7] An aircraft or missile comprises a plurality of elongated elements 1, 2, 3, 4 of streamlined crosssection arranged in grid formation and detachable from one another. The longitudinally extending elements may have rudders 6 and propellers 5 or rocket motors, and the transverse elements may be angled to provide dihedral (Figs. 4 and 6, not shown). The elements may be hollow or may be made of synthetic resin in which is embedded explosive and/or incendiary material and optionally, splinter material. When used as a weapon, the elements may be separated by explosive charges.
Patent GB-1304329-A (GB)
IPC: G10K11/178
Filed: 1971-04-19
Abstract: 1304329 Noise reduction MESSERSCHMITT - BOLKOW - BLOHM GmbH 19 April 1971 [26 Feb 1970] 22054/71 Heading H4J Rotor noise, e.g. from aircraft, helicopters, ship's propellers and ventilators, is reduced by superposition of a sound field of opposite phase to the noise field. The signal of opposite phase is controlled from the rotor. As described a propeller aircraft has a sound generator mounted on a wing (Fig. 1, not shown). Several such generators may be mounted the same radial distance from the propeller axis to produce cancellation over a broad angular range. The distance between individual generators and the distance between the generators and rotor must be small compared with the wavelengths involved. To permit setting of the optimum apparent distance of a generator when the speed of rotation of the propeller is varied, two generators 23, 24 (Fig. 3) or two rings of generators are at different distances from the propeller axis 22. By changing the relative intensities of the two generators 23, 24 an effective distance can be obtained which varies with the operating conditions. Alternatively mechanical movement of a generator may be made. Phase shift between generators is used to give a directional effect. The fuselage skin of an aircraft may be constructed as a diaphragm of a moving coil loud-speaker and used as a generator. Alternatively, a siren having its disc run synchronously with the motor may be used.
Patent GB-895017-A (GB)
Title: Improvements in or relating to fastener inserting apparatus
IPC: B25C1/00
Filed: 1957-07-12
Abstract: 895,017. Fastener supply apparatus. BRITISH UNITED SHOE MACHINERY CO. Ltd., and HOPKINS, S. R. July 11, 1958 [July 12, 1957], No. 22096/57. Class 89(3) [Also in Group XXVI] Fastener inserting apparatus wherein fasteners, e.g. nails, are supplied from a fastener supply assembly along flexible means to a fastener inserting tool which may be moved bodily without entailing movement of the supply assembly, includes an air circuit and an air motor 8 so arranged that, consequent upon actuation of the fastener inserting tool, the air motor 8 operates to impart up and down movements to a pivoted hopper containing the supply of fasteners in such a manner that the hopper remains stationary for a period in both its upper and lower positions. In the exemplified embodiment the air motor 8 comprises a cylinder 10 containing a piston 12 coupled to the pivoted hopper (not shown) by a shaft 14. Operation of the fastener inserting tool (not shown) causes compressed air to be supplied via a pipe 4 to a reservoir 2 from which it passes to the lower end of the air motor cylinder 10 via a control valve 18 in a pipe 6 and moves the piston 12 into its upper position. The valve 18 includes a spring loaded piston 20 having three heads 22, 24, 26 in a cylinder the lower end of which is connected to a port 38 near the upper end of the air motor cylinder 10. When the port 38 is uncovered by the air motor piston 12 compressed air flows from the cylinder 10 along a pipe 36 to an accumulator 44 and to the lower end of the cylinder of the valve 18. The pressure builds up in the accumulator 44 and the air motor piston 12 remains stationary in its upper position until the pressure has reached a sufficient value to cause the piston 20 to lift against the spring 40 thereby disconnecting the supply of compressed air at the valve 18 and venting the cylinder 10 of the air motor via an exhaust control valve 42 so that the piston 12 moves downwards under the weight of the hopper. The piston 12 then remains stationary in its lower position until the pressure in the accumulator has exhausted through ports 38 and 54 sufficiently to allow the piston 20 of the valve 18 to move to its lower position. The cycle of operations is then repeated until the reservoir 2 is exhausted after operation of the fastener inserting tool ceases. Valves 48, 46 in the pipe 36 are adjustable to control the rates of build up and decay respectively of the pressure in the accumulator 44, and in conjunction with the exhaust control valve 42 and a supply control valve 50, serve to control the movement of the hopper. Specification 852,736 is referred to.
Patent GB-864577-A (GB)
Title: Work stand and loading apparatus
IPC: B23Q1/52
Filed: 1958-07-10
Abstract: 864,577. Erecting poles; lever load-handling machines; load-engaging devices. METCALF, P. A. July 10, 1958 [July 23, 1957], No. 22179/58. Classes 78 (2), 78 (3) and 78 (4). [Also in Group XXIII] A work and load-handling stand comprises upright frame members 1, 2 connected by a cross-piece 3 and a workpiece holder 15 connected to the frame by a parallel arm linkage 6, 8, 10. The arrangement permits a gas turbine engine E or other workpiece to be assembled on the work platform 15 in a substantially vertical position and the work to be raised or lowered, subsequent movement of the device causing the work to swing into a horizontal position for loading. The arm 6 of the linkage is rotatable with a shaft 5 which is journalled in aligned bearings in the uprights 2, 3, a counterweight 7 being carried by the arm. The right-angled arm 10 comprises two spaced parts, the forked ends 10a being pivoted to the frame by stub-shafts 12, 13, the shaft 13 being geared to a crank 14a which is turned to operate the linkage. The work-holder 15 is carried by the arm 8 of the linkage, the engine E being mounted for rotary movement thereon. The work-holder comprises a periphery of U-section in which are mounted four peripherally-grooved rollers 17 which are arranged to receive an annular workpiece mounting member 19. The engine is secured to the work-holder by threaded spindles 21 screwed into blocks 20 secured to the member 19 and having spigots which fit into recesses in the workpiece. The frame members 1, 2 are anchored to an horizontal concrete work platform 4 provided with a pit 4a providing space for the engine to swing. Loading rails 25 are provided along which a transport carriage can be pushed. In a modification the stand is made mobile and used for the erection and assembly of poles by swinging them from a horizontal position and dropping them into holes.
Patent GB-424059-A (GB)
Title: Improvements in motor-driven vehicles
IPC: B60F3/00
Filed: 1933-08-08
Abstract: 424,059. Road-vehicle spring suspensions. TAYLOR, A. E., Garrymohr, Levencorrach, Isle of Arran. Aug. 8, 1933, No. 22199. [Class 108 (ii)] The spring suspension of a road vehicle which is preferably also adapted to float as a boat comprises two sets at each side of three tandem wheels devoid of connecting axles. The centre wheel 14 carries a longitudinal bearer beam 16 provided at its ends with casings 18 for axle bearer blocks 19 between which and main spring bearer blocks 20 mounted on the beam 16 are arranged springs 20<a>. Main springs 22 are disposed as shown between the blocks 20 and the frame 1 of the vehicle by casings 21. The bearer beam 16 also is provided with a socket 23 between which and a similar socket 26 on the frame a pneumatic tyred wheel 28 serves as a spring. The wheel casings are also provided with blocks 36 guided in guideways 37 secured to the frame 1, springs 38, 39 and rubber blocks 41 being arranged as shown. Specification 424,058 is referred to.
Patent GB-833450-A (GB)
Title: Treating filaments and fibres
Inventor: MACCORMACK KENNETH EARNSHAW
IPC: D01F6/62
Filed: 1956-07-18
Abstract: A textile lubricant comprises an aqueous solution containing up to 20% by weight of a polyethylene oxide condensate and up to 10% by weight of an antistatic agent.  The polyethylene oxide is preferably a polyethylene glycol, liquid at room temperature, with an average molecular weight between 200 and 600.  Antistatic agents referred to are those known as "Lubrol" W, "Zelec" NE and "Heatex" ("Lubrol," "Zelec" and "Heatex" are Registered Trade Marks).  Optional ingredients are up to 1% by weight of a boundary lubricant such as sodium stearate and, in conjunction therewith, an alkali such as sodium hydroxide, to raise the pH to 8 or 9.  Filaments or yarns treated with the lubricant should have an amount of at least 0.2% by weight of the filaments of the non-aqueous components on them.  They may then be treated by sliding contact with a hot metal surface, e.g. heated above 140 DEG  C., it is particularly suitable for polyethylene teraphthalate.  Specification 808,213 is referred to.ALSO:Filaments and yarns are treated by sliding contact with a hot metal surface in the presence of a lubricating composition comprising an aqueous solution containing up to 20% by weight of a polyethylene oxide and up to 10% by weight of a water-soluble antistatic agent. The polyethylene oxide preferably has a molecular weight of 200-600. Antistatic agents referred to are those known as "Lubrol" W, "Zelac" NE and "Heatex" "Lubrol," "Zelac" and "Heatex" are Registered Trade Marks). Optional ingredients are up to 1% of a boundary lubricant such as sodium stearate and, in conjunction therewith, sodium hydroxide to raise the pH to 8 or 9.  The compositions are applied to the filaments, e.g. polyethylene terephthalate, in amounts such that the filament carries at least 0.2% by weight, based on the filament, of non-aqueous components at any stage prior to making contact with the hot metal surface.  Suitable amounts of the composition are 5-20% by weight of the filament.  The major proportion of the water evaporates.  The treated filaments may be slid over metal plates heated to over 140 DEG  C. without leaving deposits, e.g. in drawing, relaxing, crimping and heatsetting operations.  Specification 808,213 is referred to.
Patent GB-744335-A (GB)
Title: Improvements in or relating to sheet-metal-working machines
IPC: B23D1/00
Filed: 1953-08-12
Abstract: 744,335. Planing; milling; making metal sheet. UNGERER, F. Aug. 12, 1953, No. 22236/53. Classes 83 (2) and 83 (3). Apparatus for treating sheet metal comprises a straightening device 2 which feeds the rough sheet 3 to a cutting-device 8 which machines the entire surface of at least one side of the sheet. The planing tools 8 are carried on chains engaging sprockets 5 rotated by a motor 7. The chains are vertically adjustable for depth of cut and are tensioned by screws 13. Verticallyadjustable conveyer-rolls 10 support the machined sheet and may also act as further straightening means. The planing tools may be replaced by milling cutters having axes at right angles to the sheet.
Patent GB-378847-A (GB)
Title: Improvements in the manufacture of calcium hypochlorite
IPC: C01B11/06
Filed: 1931-05-16
Abstract: Normal calcium hypochlorite is produced by chlorinating lime, or lime and basic calcium hypochlorite to produce a basic hypochlorite which is separated and chlorinated in the presence of water.  After separation of the normal hypochlorite thus produced, if necessary, by evaporation, lime may be added to the mother liquor to precipitate the basic hypochlorite which is returned with or without separation from the mother liquor to the first step of the cycle.  The solid normal hypochlorite may be pressed and dried in hot air, any mother liquor removed being treated with lime as before.  Liquors from the separation of the basic hypochlorite may be worked up to chlorates.
Patent GB-1074713-A (GB)
Title: Improvements in or relating to bedpans
IPC: A61G9/00
Filed: 1965-05-27
Abstract: 1,074,713. Bed-pans. SVENSKA CELLULOSA A.B. May 27, 1965 [May 29, 1964; Sept. 15, 1964 (2)], No. 22555/65. Heading A4N. A disposable bed-pan arrangement comprises an apertured upper part 42 of corrugated paperboard or other material to support the patient and a bottom plate 43 which supports a pan insert 57 of disposable material such as paper combined with an inner layer of a polymer to render the paper temporarily or permanently water impervious.