baber/WOPTO huggingface dataset:
Patent GB-1382328-A (GB)
Title: Vestigial sideband signal generation method and apparatus
IPC: H04L27/04
Filed: 1972-04-10
Abstract: 1382328 Digital transmission; amplitude modulation INTERNATIONAL BUSINESS MACHINES CORP 10 April 1972 [21 May 1971] 16360/72 Heading H4P A method of generating a vestigial sideband signal comprises generating a first waveform containing the digital information to be transmitted, having an amplitude spectrum which is limited to a predetermined bandwidth, generating a second waveform which is a Modified Hilbert transform of said first waveform, modulating the first waveform in a balanced modulator on to a first carrier signal cos # c t to provide a first double sideband suppressed carrier output, modulating the Modified Hilbert transform in a balanced modulator on to a second carrier signal cos(# c t+90 degrees) to provide a second double sideband suppressed carrier output, and summing the first and second outputs to enhance one of the sidebands and to cancel part of the other sideband to provide a vestigial sideband output signal for transmission. The transmitter, generating a vestigial sideband signal by phase shift method, comprises a serial memory 40, e.g. a shift register receiving data signals through AND gate 35 and having a plurality of stages 1-34, each has an output connected through one of a first plurality of resistors 101-134, forming a baseband sample generator, to a summing arrangement including amplifiers 140, 150, 160 each having feedback paths. The modified Hilbert transform sample generator comprises a second plurality of resistors 301-334 connected through summing resistors 201-234 to a second summing arrangement 240, 250, 260. The outputs of networks 100, 200 are step-like waveforms and contain h.f. components which are removed in low pass filters 82, 84, then, through modulators 74, 76 receiving 90-degree phase displaced carriers, the modulated outputs are fed to a further summing amplifier 150 which generates a vestigial signal from the phase shifted inputs. The inverse of the first plurality of resistors define a waveform which is limited to a determined bandwidth and the inverse of the second plurality define a waveform which is a modified Hilbert transform of that defined by the first plurality. A theoretical treatment is given in the Specification.
Patent GB-824705-A (GB)
Title: New porphyrin compounds and process for the production of the same
IPC: C07D487/22
Filed: 1957-05-23
Abstract: The invention comprises the mercury complex compounds of haematoporphyrin and protoporphyrin and the dialkali-metal salts of these compounds and their preparation by reacting haematoporphyrin or protoporphyrin or an alkali metal salt thereof with a mercury salt in an organic solvent such as chloroform, pyridine and/or acetone and separating the mercury porphyrin, suitably by adding a non-solvent such as ether.  Suitably the mercury salt is a mercury salt of an organic acid and the reaction is carried out in a medium containing alkali, or the haematoporphyrin or protoporphyrin is first reacted with an alkali metal alcoholate in an alcoholic medium and the resulting alkali metal salt of the porphyrin is reacted with the mercury salt of an organic acid.  If desired, the porphyrin reactant may originally be in the form of an ester and the esterifying groups are hydrolysed off after formation of the mercury compound.
Patent GB-404612-A (GB)
Title: Improvements in or relating to retorts or the like
IPC: C10B1/10
Filed: 1932-06-10
Abstract: 404,612. Rotary retorts for drying or destructive distillation. LLOYD, F., 26, Alma Street, Sheffield, and LINDARS, H.; 54, Victoria Street, London. June 10, 1932, No. 16466. [Classes 51 (ii) and 55 (i).] A rotary retort for drying, or lowtemperature carbonization is supplied with heating gases from an annular chamber D which rotates with the retort, and from which lead pipes D<1>, F<1> carrying gas and air to a heating space B'. The rotary part of the chamber D engages by ribbed portions H<4>, and correspondingly grooved portions with the stationary part H into which are fitted the gas and air mains H<2>, H<3>. The joints are made gas-tight by spring pressed packing rings H<6> hold by screws H' against machined surfaces on the casing. The retort is rotated by gearing L<1>, L<3> and comprises annular sections A, B, C, the innermost C containing the material to be heated, the space between the sections B and C being for the heating gases, and the space between the sections A and B being filled with heat insulating material. To provide for expansion the adjacent ends of the sections slide freely on and are supported by frusto-conical flanges K, K<1> on an annular casting M.
Patent GB-1406164-A (GB)
Title: Device for collecting eggs in a henhouse for laying-hens
IPC: A01K31/16
Filed: 1973-04-06
Abstract: 1406164 Removing eggs from battery cages R CHARDINE 6 April 1973 [23 Feb 1973] 16478/73 Heading A1M [Also in Division B8] Conveyor belts 1 arranged on either side of each cage, in each tier of cages, in a hen house, feed eggs to a single transversely disposed belt conveyor 5 which is mounted so as to be able to traverse vertically. This makes it possible to have only one conveyor 5 for the whole house, instead of having one to each tier. In Fig 2, the conveyor 5 is mounted on a bracket 6 which may be raised or lowered by a winch 11. In Fig 5, a drive shaft 31 for the belts 1 of a given tier, have a coupling 29 by which the shaft 31 may be coupled to a drive gear 28, and motor 15, of the conveyor 5. When the latter reaches its correct position relative to a given tier of cages, the coupling 25 of the shaft 31 respective to that tier is connected to the drive gear 28 of the conveyor 5.
Patent GB-515487-A (GB)
Title: Improvements relating to brake operating mechanisms
IPC: B60T7/04
Filed: 1938-06-02
Abstract: 515,487. Brake-operating mechanism. PRATT, J. H., MANLEY, G. E., and GIRLING, A. H. G. June 2, 1938, No. 16487. [Class 103 (i)] The front and rear brakes of a 'vehicle are applied by a floating lever so as to maintain a constant ratio of the pressure applied to the two sets of brakes and fixed stops are provided to which the fulcrum of the lever is transferred in the event of failure of the connections to one set of brakes to ensure the application of the other set. In Fig. 1 the pedal lever 6 is supported by a guide lever 14 pivoted at 15 to the fixed part 21 the part 6c of the lever 6 being disposed between the forked upper part of the lever 14. The front brake connections comprise the rod 7 operating the piston 8 of the hydraulic mastercylinder 9 and the rear brakes are operated by link 11, lever 12 and link 13. The rear brakes may be operated also by a hand lever through link 19 and lever 18 pivoted on lever 12 and. engaging an abutment 20 on that lever. In the event of failure of the front or rear brakes, a projection 8a on the piston 8 engages the cylinder or the lever 12 engages the stop 17 thus ensuring the operation of the other set. In a modification, a pedal lever has between the connections to the front and rear brakes, a pivot which is slidable in a longitudinal slot in a fixed part and the stops are provided, adjacent the parts of the lever at which the brake connections are attached. Both front and rear brakes may be operated by hydraulic means.
Patent GB-1004977-A (GB)
Title: High frequency electron discharge apparatus
IPC: H01J25/12
Filed: 1961-12-19
Abstract: 1,004,977. High frequency discharge apparatus. VARIAN ASSOCIATES. Dec. 19, 1961 [Jan. 26, 1961], No. 16518/64. Divided out of 1,004,976. Heading H1D. High frequency electron discharge apparatus, e.g. a klystron, comprises a cavity resonator 15 having apertured end walls 32, 35, means 13 for directing a beam of electrons through the apertures 39 in the end walls and an interaction gap 38 to a collector assembly, 16, the collector assembly comprising a cylindrical member 41 coaxial with the beam, mounted upon one of the end walls and carrying an outwardly projecting flexible fin 44<SP>1</SP>, spaced axially from the one end wall and having its outer periphery fixed in relation to the other side walls of the resonator, and means 45, 46 for applying an axial force to flex the one end wall and the flexible fin and thereby vary the resonance frequency of the resonator. The force applying means comprises a screw-threaded portion 45 on the end of the cylinder and a nut 46 engaging the thread and the body of the device. The resonator may have further tuning means in the form of a deformable side wall as described and claimed in parent Specification 1,004,976. Further fins 44 may be provided on the cylindrical member, and a cooling fluid may be passed over them. The electrons of the beam are collected by a baffle 42 mounted in a cylindrical bore formed in the cylindrical member. Specifications 1,004,978 and 1,004,979 also are referred to.
Patent GB-747155-A (GB)
Title: Improved wheel and brake assembly for motor vehicles
IPC: F16D65/10
Filed: 1954-06-04
Abstract: 747,155. Wheel and brake assembly. GENERAL MOTORS CORPORATION. June 4, 1954 [June 19, 1953; June 19, 1953], No. 18655/54. Classes 103 (1), 144 (1) and 144 (2). In a wheel and brake assembly for a motor vehicle, the wheel 30 carries a brake drum 40 removable from its outer side and enclosing the brake mechanism, which is mounted on a non-rotatable axle 10, the wheel 30 having a hub 12 rotatably mounted on the axle and connected to a rim portion 100, which the brake drum engages at peripherally spaced positions, such as the lands 76, in Figs 2 and 4. Fluid to operate the brake shoe actuators is transmitted thereto through passages 47, 48 in the axle, the passages 27, 28 being for the supply of lubricating oil in the space between the oil seals 25 and 26 which contains the bearings 18 and 19. Holes 102, 103, 104 and 105 in the wheel spokes 13 and brake drum mounting part 100 provide for centrifugal circulation of cooling air. A hub cap 64 is secured by nuts 82 to a spider plate 43 mounted on the hub 49 which is secured on to the stub axle by a locking plate 81 and bolts 53. Fig. 7 relates to a further embodiment of the invention in which the brake drum is mounted within the outer of the two wheels of a twin wheel unit. the drum 35 being secured by bolts 39 to faces on the wheel rim 89 which also form a mounting for the tyre-receiving bases 100a and 100b spacedly secured thereon by means of a coned clamping ring 117, stud nuts 108 and a rigid spacer ring 119. Specification 747,156 is referred to.
Patent GB-991271-A (GB)
Title: Improvements in windings for inductive apparatus
IPC: H01F27/32
Filed: 1963-04-27
Abstract: 991,271. Transformers. WESTINGHOUSE ELECTRIC CORPORATION. April 26, 1963 [May 21, 1962], No. 16567/63. Heading H1T. A coil winding for a transformer or other inductive apparatus is formed of a composite main conductor 50 (Fig. 5B) consisting of an odd number of insulated parallel connected conducting strands 52 (Fig. 5B) arranged in two rows each in turn having one strand 52 less than the other row, the strands being successively transposed, a strand in one layer moving (e.g. at 60) to the adjacent layer and the remaining strands in the first layer then being bent (e.g. at 62) one strand position, this being repeated until each strand has, over part of its length, occupied each position in the composite conductor. Filler pieces 54 are also provided. Details of distances between the bends are given. Each strand may be subdivided, the strands and separate portions being insulated (Fig. 2B, not shown), by enamel or paper. The main conductor with the filler pieces is taped. A plurality of main conductors connected in parallel may be wound together when forming a coil (Fig. 3A, not shown). The coil turns wound from a main conductor are spaced apart by corrugated members 19 (Fig. 1A) and the coils by flat spacers 29 (Fig. 1B) and corrugated members 30 having apertures transverse to the corrugations, blocking members 22, 24 being provided to ensure that the coolant, flowing in at 26, flows out at 28.
Patent GB-514805-A (GB)
Title: Improved axle drive for power driven vehicles
IPC: B60K17/16
Filed: 1938-06-03
Abstract: 514,805. Motor-vehicle change-speed gearing. PULSGETRIEBE GES. June 3, 1938, No. 16692. Convention date, June 3, 1937. [Class 79 (ii)] [Also in Group XXIV] An axle change-speed gear having reduction gears arranged behind the usual bevel gears 7, 12 is provided with a double dog clutch 17 having inclined front tooth faces preventing engagement in one direction of relative motion, the faces transmitting the load not being inclined so that once engaged the drive is positive in both directions. In the construction shown the bevel gear 12 is fixed on the shaft 6 carrying the sliding clutch 17, the loose gears 13, 14 on this shaft meshing with gears 2, 3 on the differential casing 1
Patent GB-173192-A (GB)
Title: Improvements in or relating to tipping wagons
IPC: B60P1/14
Filed: 1921-06-17
Abstract: 173,192. Forestas, H. G. June 17, 1921, Tip-wagons.-The body 4, Fig. 1, of a tipwagon is mounted on chairs 2 connected by a shaft 3 on which rotates a tube 6 connecting chairs 5 on the body 4. Tipping is effected by a steel rope, chain, or the like 12 wrapping a hand or power-operated drum 7 and fixed drums 13, the ends being connected by tie-rods 14 to springs 15 wrapping side drums 16 on the body. The body is held horizontal by wrench-rods 17, screwed elements 20 of which are held by movable pins engaging lugs 22 on the chassis 1. The movement is braked by an eccentric, the disc 23, Fig. 2, of which is carried by a gear 9 on the shaft of the drum 7, the strap 24 carrying a rod 25 traversing a track 26 pressed by an adjustable spring 27 which is compressed during the half turn of the gear 9 which completes the tipping movement.
Patent GB-603242-A (GB)
Title: Improvements in and relating to automatic pilots for dirigible craft
IPC: G01C19/00
Filed: 1945-06-30
Abstract: 603,242. Fluid-pressure servomotor-control systems. DUNN, R. W., TALBOT, P. E. A., FENN, A. E., ORAM, J. A., BROWN, G. W., ROWLEY, G., and SIMMONDS, G. E. June 30, 1945, No. 16703. [Class 135] In an automatic pilot of the kind in which deviational movement of a craft in relation to a gyroscope actuates the control valve of a servomotor effecting the restoring movement of the control surface of the craft, and the control surface movement causes a proportional follow-up movement of the control valve, the device for bringing the automatic pilot into operation is rendered inoperative except when the control valve occupies its central or neutral position in relation to the gyroscope. In an embodiment, the control valve 14, Figure 2, of the servomotor 18 is actuated by a gyroscope 13, the piston of the servomotor being connected through a rack 80, pulley 82 carrying one end of a bowden wire 64, pulley 63 carrying the other end of the Bowden wire and a crank arm 61 to the movable seat 15 of the control valve to provide the follow-up movement. The casing 17 of the Bowden wire is made adjustable in length at an intermediate point in order that seat 15 may be moved to the neutral position this adjustment being effected by means of an electric motor 24 which rotates a fixed nut 87 engaging a screw thread 85 on casing 17. One end 84 of casing 17 is fixed and the other end acts through a spring 69 against the crank arm 61. Valve seat 15 actuates the movable contacts 25 26, Fig. 1 of a reversing switch 19 controlling motor 24, but in the neutral position of the valve and the switch the motor will not be energized. To bring the automatic pilot into service the main switch 35 is closed and a switch 21 is depressed to energize a solenoid 22 which opens a valve 42 controlling the main air supply to the servomotor and also closes switch contacts 36, 38 to energize a farther coil 39 which will hold valve 42 closed when solenoid 22 becomes de-energized. Should the control valve be displaced, switch 19 will be closed in one direction or the other and a coil 31 will be energized thus closing contact 33 to cause a lamp-34 to light and opening contacts 32 to de-energize solenoid 22, although valve 42 will remain open due to holding coil 39. Switch 23 can be closed to complete the circuit of motor 24 which will rotate and re-centre the servomotor control valve. A further switch 40 allows the automatic pilot to be put out of action. The apparatus is made up into units corresponding to the dotted rectangles. To prevent accidental operation of the automatic pilot when the cable leading to switch 19 is not connected, the main leads pass at 46 through the unit housing switch 19.
Patent GB-1213186-A (GB)
Title: Method of making carbon black/silica pigment
Inventor: TAKEWELL ROBERT BOYSIE
IPC: C08K3/36
Filed: 1968-04-08
Abstract: 1,213,186. Carbon black/silica pigment. J. M. HUBER CORP. 8 April, 1968, No. 16721/68. Heading C1A. [Also in Divisions. C3 and C4] A carbon black/silica pigment is produced by producing carbon black in a carbon black furnace, by the incomplete combustion of a hydrocarbon oil, and quenching the product in a silica/water slurry. The product may be hammer milled and pelleted. The slurry may contain 10% silica, and the pigment at least 33 1/3% silica.
Patent GB-1439092-A (GB)
Title: Hindered phenol pentaerythritol phosphonate
IPC: C09K15/32
Filed: 1974-04-17
Abstract: 1439092 Phosphonate antioxidants and flameretardants BORG WARNER CORP 17 April 1974 16786/74 Heading C3P [Also in Divisions C2 and C5] Polymers (e.g. polypropylene) are flameproofed or stabilized against oxidation by incorporation of compounds of formula wherein each R independently is H, alkyl, cycloalkyl or aralkyl, each R<SP>1</SP> independently is alkyl, cycloalkyl or aralkyl, and each n is 1-4. Dilauryl thiodipropionate may also be incorporated as synergistic antioxidant.
Patent GB-694647-A (GB)
Title: Fireproofing lacquer
IPC: C09D5/18
Filed: 1950-07-05
Abstract: A fireproofing lacquer or paint contains as a filler one or more inorganic silicates suspended in polyvinyl formal as a non-combustible adhesive, and a further inorganic filler of lower melting-point, said fillers being capable of forming a composite enamel when heated.  Inorganic silicates specified are sodium, potassium, calcium, boron and phosphorus silicates, and glass. Fillers of lower melting-point specified are sodium meta-borate, boric anhydride, and sodium metaphosphate.  Optional additions to the lacquer are chloro-caoutchouc, and hydroxysebacic acid treated with chlorine or phosphoric acid.ALSO:A fireproofing lacquer or paint of the type containing a filler suspended in a non-combusible adhesive and forming an enamel when heated, contains as a filler one or more inorganic silicates suspended in a non-combustible adhesive, i.e. one which though it may decompose does not catch fire when heated, such as chlorocaoutchouc and/or polyvinyl formal, and a further inorganic filler of lower melting point, said fillers being capable of forming a composite enamel when heated.  Inorganic silicates specified are sodium, potassium, calcium, boron, and phosphorus silicates, and glass fillers of lower melting point specified are sodium metaborate, boric anhydride, and sodium metaphosphate.  In a modification the adhesive employed is combustible, such as linseed oil, but contains substances, such as salicylic acid or ammonium nitrite, which give off gases on heating which suppress combustion.  Optional additions to the lacquer are asbestos, zinc white, and hydroxy sebacic acid treated with chlorine or phosphoric acid.
Patent GB-595452-A (GB)
Title: Method and apparatus for mixing or blending or for maintaining the consistency of solutions and suspensions
IPC: B01F5/10
Filed: 1944-09-05
Abstract: 595,452. Mixing-apparatus. AUER, G. A. Sept. 5, 1944, No. 16949. Convention date, Aug. 12, 1943. [Class 86] In the mixing or blending or the maintenance of the consistency of liquid and/or liquid suspensions the liquid material is introduced into the bottom of a container or in adjustable amounts at a plurality of vertically spaced levels within the container and discharged from the bottom of a second container, the displacement of the material from the first to the second container being effected solely upwardly and laterally symmetrically outwardly of the first container without the use of mechanical agitation. The liquid material is fed into an inner compartment 16 of a tank 12 through a perforated tube 60 mounted coaxially within a conical perforated partition 13, and, by the operation of a valve 71, may be passed down a tube 72 within the tube 60 or through the annular space between the tubes 60, 72. The flow through the perforations in the tube 60 is controlled by a perforated sleeve 55, surrounding the tube 60 and rotatable by a handwheel 58, and the perforations in both members decrease in area with distance from the lower ends. A valve disc 23, adjustable by a hand wheel 24, controls the outlet from the lower ends of the tubes 60, 72. The liquid flows from the compartment 16 laterally symmetrically outwardly through the perforated baffle 13 to an outer compartment 17 having outlet tubes 19, 20 at its lower end. Part of the liquid flowing into the tank 12 may be diverted through valves 91, 33 and 36, and tubes 32, 35 to pass on to the upper surface of the liquid in the compartment 16. The outflow from the tank 12 may be recirculated by a pump 90 through tube 95 and valves 94, 97, 71 to the tube 60. In a modification a number of tanks are arranged consecutively, each comprising a vertical inlet tube coaxial with a semiconical baffle, and the liquids are passed from tank to tank by siphons.
Patent GB-511638-A (GB)
Title: Improvements in or relating to pipe connections
IPC: F16L55/16
Filed: 1938-06-08
Abstract: 511,638. Pipe connectors and stoppers. HODSON, H. June 8, 1938, No. 16985. [Classes 99 (i) and 99 (ii)] A pipe connector or stopper comprises a tubular fitting a adapted to be placed within a pipe end e, and having an external shoulder c at its inner end, a long rubber sleeve f, a gland g, a nut h, which screws on the fitting so as to compress the rubber sleeve tightly against the pipe, and a flange i on its outer end. A plate l may be bolted to the flange, or two similar fittings each secured to a pipe may be bolted together.