baber/WOPTO huggingface dataset:
Patent GB-844140-A (GB)
Title: Electromagnetic-wave-absorbing dielectric wall
IPC: H01Q17/00
Filed: 1958-11-10
Abstract: A curable composition comprises polychlorobutadiene latex, phenyl beta napthylamine dispersion, zinc oxide dispersion, sulphur dispersion, sodium sulphates of higher fatty alcohols, sodium acrylate polymer emulsion and an aluminium slurry comprising methyl cellulose, aluminium extra fine lining powder, and a non-ionic wetting agent.ALSO:A laminated electromagnetic-wave-absorbing wall comprises four laminations consisting respectively of (1) metal sheeting, wire mesh or polystyrene or glass-fibre-reinforced low-pressure laminating resin, (2) hard or soft foam rubber, inorganic cement foamed or filled with exploded mica, wood, glass-fibre-reinforced plastic, air, or polytrifluorochloroethylene, (3) conductive carbon-loaded synthetic or natural rubber, conductive carbon-loaded inorganic cement, polyelectrolyte adhesive, ethylene glycol-plasticized rubber, vinyl plastic, copper sulphate hydrates, or glass or hardened water-glass loaded with soot and (4) a preferably externally roughened layer of barium strontium titanate, titanium dioxide ceramic sheet, or copper, aluminium or titanate particles loaded into synthetic or natural rubber, vinyl sheeting or glass fibre reinforced plastic.  In the particular embodiment described the first layer is of aluminium foil, the second of foamed, cured, natural rubber and the third of natural rubber and channel black calendered into an open-weave cotton fabric and cured.  The last layer is calendered on the surface of the third layer and cured, and comprises a composition of polychlorobutadiene latex, phenyl beta naphthylamine dispersion, zinc oxide dispersion, sulphur dispersion, sodium sulphates of higher fatty alcohols, sodium acrylate polymer and an aluminium slurry comprising methyl cellulose, aluminium powder, and a non-ionic wetting agent.
Patent GB-652732-A (GB)
Title: Improvements relating to regulators for dynamo electric machines
IPC: H02P9/36
Filed: 1946-12-06
Abstract: 652,732. Automatic control systems for dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 6, 1946, No. 36196. Convention date, April 16, 1943. [Class 38 (iv)] In apparatus for regulating an output characteristic of a dynamo-electric machine excited by an amplidyne generator, a first control winding of the latter is energized to produce a field dependent on the output characteristic, a second winding produces a steady field of opposite polarity and a third winding is energized by a sensitive auxiliary regulator responsive to the difference between a constant voltage and a voltage proportional to the output characteristic, to produce an exciting field giving a precision control of the output. The field 2 of an alternator 1 (Fig. 1) is energized by an exciter 3 whose field is in turn energized by an amplidyne 6 excited differentially by windings 14, 15 energized respectively by a constant voltage source 17 and by a rectified voltage proportional to the alternator output voltage, to give coarse rapid control of the latter. An auxiliary amplidyne field winding 16 is energized from the voltage source 17 through a slow accurate low-power regulator 21 responsive to the alternator output voltage, which is rapidly and precisely controlled by the combination of the main and auxiliary regulating systems. In a modification (Fig. 2) the output current of a D.C. generator 22 is controlled by energizing its field 23 from an amplidyne controlled by a winding 28 connected across an inductive resistance 29 in series with the generator output and shunting the primary amplidyne brushes as described in Specification 644,619. A further control winding 26 is fed from a'constant voltage source 27 in series with a negative booster 39 excited by a control winding 32 energized by an auxiliary highsensitivity regulator 33 responsive to the difference between the constant voltage from source 27 and a voltage across the resistance 34 in the load circuit of generator 22. In the Specification as open to inspection under Sect. 91, the output of the D.C. generator is controlled according to a complex characteristic, and the booster is excited through parallel potentiometer and rectifier arms controlled by precision voltage, current, and power regulators. This subject-matter does not appear in the Specification as accepted.
Patent GB-927708-A (GB)
Title: Hoisting apparatus
IPC: F16H37/00
Filed: 1960-10-21
Abstract: 927,708. Jib cranes; winding gear. A. HAULOTTE. Oct. 21, 1960 [Nov. 20, 1959], No. 36238/60. Classes 78 (4) and 78 (5). [Also in Group XXIV] Relates to hoisting apparatus incorporating forward and reverse gearing having one input shaft and several output shafts, drive in either direction to these shafts being effected by selective engagement of clutches and the higher speeds being used for lifting the applied loads while the lower speeds are used for lowering. In one form, a motor 42, Fig. 4, drives the input shaft 40 of a gear having two output shafts selectively driven in either direction by actuation of double clutches 45, 47 controlled by two hand levers 44, 46 to drive two winch drums 41a, 41b. In another form, a crane comprises a motor 63, Fig. 5, driving gearing 52 having one input shaft 64 and five output shafts 53, 55, 57, 58, 61. The output shaft 53 drives a winch drum 54 controlling the jib of the crane, while the two output shafts 55, 57 drive winch drums 56a, 56b effecting the hoisting operations of the crane. The output shaft 58 drives through reduction gearing 59 to adjust the orientation of the crane, while the output shaft 61 drives through bevel gearing 62 to effect translational movement of the crane. In yet another form, a motor 69, Fig. 6, drives through gearing 67 having output shafts such as 72, 73 effecting control of a crane 68 and also driving through the axle 74 of the crane to the road wheels thereof.
Patent GB-1313931-A (GB)
Title: Production of fuel elements and fuel inserts for high temperature reactors
IPC: G21C3/62
Filed: 1970-07-27
Abstract: 1313931 Fuel elements NUKEM NUKLEAR - CHEMIE UND - METALLURGIE GmbH 27 July 1970 [2 Aug 1969] 36238/70 Heading G6C Fuel elements or fuel inserts for high temperature reactors are treated with Cl 2  or HCl gas at elevated temperature in order to remove residual gases influencing corrosion and impurities catalytically affecting corrosion while at the same time limiting contamination by fissile material. The treatment is carried out at a temperature of from 1500‹ to 1900‹ C., preferably at about 1700‹ C. The fuel elements or inserts consist of fuel particles of U and/or Th carbide or oxide coated with pyrolytic carbon, which are either introduced together with a binder, optionally with a little graphite powder added to it, into prefabricated graphite containers, or are mixed with a suitable graphite powder in the company of a binder and then directly moulded under pressure into a fuel element or insert. In an example, spherically moulded pressed powder compacts of a graphite/ binder matrix with a U content of 1 g. of U-235 and a Th content of 5 g in the form of coated particles were heated initially to 800‹ C. to decompose and coke the binder and then to 1700‹ C. for two hours while Cl 2  gas was passed through the furnace. Residual gases, e.g. CO and H 2 , arising from the decomposition of the binder which adversely affect resistance to the corrosive influences of steam and O 2 , and elements such as Fe, Cr, V and Mo which result in increased corrosion under the effect of steam due to catalytic action, are removed by this treatment. The U and Th contamination of the graphite matrix resulting from the diffusion of the fissile material through the particle coatings is less than that occurring when the heat treatment is carried out under a vacuum.
Patent GB-1483647-A (GB)
Title: Charge transfer device
IPC: H01L29/768
Filed: 1974-08-19
Abstract: 1483647 Charge-coupled devices HEWLETTPACKARD CO 19 Aug 1974 [24 Sept 1973] 36405/74 Heading H1K A charge-coupled device formed in a P-type substrate 11 has an N-type ion impanted surface layer 23, in which charge transfer actually occurs, and a plurality of shallower P-type ion-inplanted surface regions 25 located relative to the overlying 2-phase connected electrodes 17, 19, 21 so as to inpart directionality to the transfer of charges. An additional funtion of the regions 25 is to divert charge in the course of transfer between adjacent storage areas into the bulk of the layer 23, as shown by arrows 27, and away from the deleterious effect of trapping centres at the interface between the semiconductor and the insulation 13. The layer 23 serves to increase charge carrying capacity. Each electrode may include a first storage section 17A, &c., and a second transfer section, 17B &c., the two sections being separated by a second insulating layer 15 and each second section 17B overlying a corresponding P-type region 25, which region is formed by implantation through a masking layer constituted by the first electrode sections 17A, &c. The two sections 17A, 17B may be interconnected as shown, or the second section 17B may float electrically. Suitable materials are as follows: for the substrate 11, P-type Si, GaAs or GaP; as dopant for the layer 23, P, As or Sb; as dopant for the regions 25, B, Ga or In; as insulation 13, 15, SiO 2 , Si 3 N 4  or Al 2 O 3 ; as electrodes 17 &c., polysilicon or thin metal. Conductivity types may be reversed. Reference has been directed by the Comptroller to Specification 1,376,640.
Patent GB-859541-A (GB)
Title: Apparatus for guiding a motor mower
IPC: A01B69/02
Filed: 1959-10-30
Abstract: 859,541. Guiding lawnmowers. WILLIAMS, M. G. Oct. 30, 1959, No. 36901/59. Class 6(1). Apparatus for guiding a motor mower comprises a grooved wheel 29 in the groove of which is mounted a turn of a length of anchored wire 25, the wheel being provided with a lever 31 attached to a lawnmower so that as the lawnmower moves in a circular path the lever rotates the wheel so that it is moved along the wire the mower thus cutting in a series of overlapping circles. A counterweight 39 being provided to retain the wheel in position on the wire.
Patent GB-1357756-A (GB)
Title: Underwater transmitter device for an underwater operator
IPC: B63C11/02
Filed: 1971-08-05
Abstract: 1357756 Subaqueous signalling apparatus SNAM PROGETTI SpA 5 Aug 1971 [3 Sept 1970] 36961/71 Heading G4F An underwater transmitter device capable of operating automatically to transmit a warning in the event of an underwater accident comprises an electric pulse generator e, a pulse divider d which transmits pulses at a lower frequency to an oscillator f and an electroacoustic transducer h; an electronic timer b is provided with switches M 1 , M 2 , M 3 , and if these switches are not operated before the end of predetermined time intervals, the pulse divider transmits a higher frequency warning signal to the transducer. Acoustic signals from the transducer h may be received by transducer i and fed through filter l and automatic volume control m to loud-speaker p mounted on a surface vessel. A light c gives warning to the underwater operator of the end of the predetermined time interval. Pressure responsive switch a brings the device into operation at a predetermined depth.
Patent GB-867865-A (GB)
Title: Improvements in and relating to the automatic electric control of feeder means
Inventor: PROWSE DONALD WINDSOR
IPC: G01G11/08
Filed: 1956-12-05
Abstract: 867,865. Automatic weight control systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 13, 1957 [Dec. 5,1956],no. 37194/56. Class 38 (4). The weight of a fluid material per unit length on a conveyer 5 is maintained constant by a weigh-beam 8 mechanically linked to a variable impedance 10 controlling the current through a field winding 12 of an amplidyne 14. The winding 12 is opposed by a bias field winding 13 whereby any difference causes the amplidyne 14 to energize a motor 15 driving a blade 4 which sweeps the fluid material from a turntable 2 on to the conveyer 5; the blade moving to a new angular position in which the rate at which the material is swept on to the conveyer again balances the field windings 12, 13.
Patent GB-1185325-A (GB)
Title: Ignition Distributors.
Inventor: JUKES NORMAN ALFRED
IPC: F02P5/10
Filed: 1966-08-19
Abstract: 1,185,325. Ignition timing. JOSEPH LUCAS (INDUSTRIES) Ltd. 26 July, 1967 [19 Aug., 1966], No. 37250/66. Heading H1N. [Also in Division F1] An ignition distributer comprises a rotatable shaft 11 carrying the distributer arm and an actuator for a contact breaker 14, 15 mounted on an angularly adjustable annular plate 13. Mounted on the housing 10 of the distributer are two vacuum units 17, 22, one 22 being fixed and the other 17 being slidably movable in the housing to adjust the plate 13 through a link, e.g. a tension spring 19, connected to the plate. During normal running of the I.C. engine throttle valve 26 is open and a spool valve 28 is in such a position that vacuum unit 17 is connected to the depressed air inlet of the carburetter via conduit 24, and vacuum unit 22 is connected to atmosphere via conduit 29. The diaphragm 18 of vacuum unit 17 therefore moves the plate 13 in such a direction as to advance the timing of the engine. When throttle valve 26 is closed, spool valve 28 connects vacuum unit 17 to atmosphere and vacuum unit 22 to the depressed engine manifold side of the engine. This causes diaphragm 23 of vacuum unit 22 to move to the left and with it the vacuum unit 17 which is connected thereto by a rod 21. This leftwards movement of unit 17 serves, through the link 19 to rotate plate 13 to retard the timing of the engine.
Patent GB-302604-A (GB)
Title: Improvements in moulds for foundries
IPC: B22D21/00
Filed: 1928-12-17
Abstract: 302,604. Felten & Guilleaume Carlswerk Akt.-Ges. Dec. 16, 1927, [Conven. tion date]. Moulds; mould materials.-Moulds for casting zinc and aluminium alloys and other alloys which are intended to solidify slowly are made from an alloy of iron with about 30 per cent of nickel. The walls of the mould may be hollow and the mould may be cast in one piece or in parts or may be welded up from plates. Specification 299,850 is referred to.
Patent GB-799472-A (GB)
Title: Improvements in protective shields for cycles
Inventor: MENNESSON BERNARD RENE
IPC: B62J17/00
Filed: 1956-12-06
Abstract: 799,472. Weather shields for cycles. SOC. D'APPARIELS DE CONTROLE ET D' EQUIPMENT DES MOTEURS, S.A.C.E.M. Dec. 6, 1956 [Dec. 9, 1955], No. 37354/56. Class 136(1) A protective shield for a cycle consists of a piece of flexible material 6 hemmed at each end for the reception of rods 78. The material 6 is slotted at 15 for the passage of the front tube 1 of the cycle. The slot may be closed by press-studs 16. Clips 17 are provided to grip the edge of a protective cape. The shield may be fitted on a bicycle frame of the type described in Specification 756,295 in which the crank axle is connected to the main tube 1 and to the rear forks 5 by means of bolts 3, 4. The upper member 7 of the shield is provided with a ring 9 which is engaged by a hook 10 carried by a support which straddles the middle of the handlebar. The lower member 8 is connected to the bicycle frame by two resilient rods 11 which pass between the zones swept by the feet of the rider during pedalling. The rods 11 are of steel wire having hooked ends 12 which engage over the rear bolt 4 of the bicycle. The rods pass under the bolt 3 and have downwardly directed nose portions 13 which engage in sockets 14 fixed to the frame element 8. The rods 11 diverge from one another in the forward sense.
Patent GB-1452572-A (GB)
Title: Rotary energy converter
IPC: F04C18/10
Filed: 1974-08-27
Abstract: 1452572 Rotary positive-displacement fluid-machines H L PAUL 27 Aug 1974 [27 Aug 1973] 37388/74 Heading F1F An energy converter, Fig. 1, comprises a primary rotor 6 with ports 10 which co-operate with inlet and exhaust ports 14, 15, and a secondary rotor 11  in a parallel-sided chamber 7 eccentrically mounted on a shaft 13 which is offset from the axis of the primary rotor. As described, the device functions as a two-stroke I.C. engine and a sparking plug 16 is provided. Figs. 2-6 (not shown), illustrate the cycle of events. In a second embodiment, Figs. 8, 9, two secondary rotors 23, 24 are provided in a primary rotor 17. The chambers which house the secondary rotors are at 90 degrees to one another and the rotors are 180 degrees out of phase. Rotor 23 compresses the charge which is then transferred to the power rotor 24, thus, 360 degrees power operation is achieved. Figs. 10, 11 show an embodiment which operates as a pump when a shaft 40 is rotated. A primary rotor 35 houses two secondary rotors 41, 43. A slip-ring seal 50, Fig. 14, with flat sides and arcuate ends may be provided.
Patent GB-1019961-A (GB)
Title: Printing press water solution mixing and distributing mechanism
IPC: B41F33/00
Filed: 1962-10-02
Abstract: 1,019,961. Printing-apparatus; damping- apparatus. BALDWIN-GEGENHEIMER CORPORATION. Oct. 2, 1962 [Nov. 14, 1961], No. 37395/62. Heading B6C. The or each damping fountain pan of a rotary-offset printing machine is supplied with an " etch and gum " solution in water from a central source through a circulatory system which comprises the source, a pump, the or each pan and the necessary piping. In the case of a plurality of pans the latter may be connected in the system in series or parallel. In the described embodiment the source comprises a tank 20, Fig. 3, having two compartments 24, 26, Fig. 1, the former containing the " etch and gum " concentrate whilst the latter holds the solution already mixed to the desired proportions. A pipe 42 connects the compartment 26 with the pan or pans, the return flow of the circulating solution being effected through a pipe 44 which leads back into the compartment via a filter bed 54. The solution is maintained in the compartment 26 between predetermined upper and lower limits by an electrical control element 100. When replenishment of the solution is necessary through actuation, by the element 100 at the lower limit, of the pump motor 41 and fluid-control valves 104, 106, 108 and 109, " etch and gum " concentrate is drawn from a measuring tank 34, disposed beneath the tank 20, into the compartment 26 by an aspirator 38 actuated by the water supply thereto as it passes through piping 30. Whilst fresh solution is being made the circulatory system is at a standstill. The amount of concentrate withdrawn is controlled by the setting of a knob 64, Fig. 5, on the tank which determines the position relative to the top of the tank of the inlet 71 of a tube 72 which is fixedly mounted on a shaft 60 rotatable by the knob 64 and is also in direct connection with the discharge pipe 36 of the tank 34. When the upper limit is reached in the compartment 26 the element 100 reacts to re-start the pump 40 and, after a suitable time-lag, re-opening the valves 104 and 109 whilst closing the valves 106 and 108. Thereupon the circulatory system is reestablished whilst fresh concentrate passes from the compartment 24 to the tank 34 in readiness for the next solution replenishment stage when the element 100 again reacts at the lower limit. The system also incorporates piping and solenoid valves which enables the tanks, pipes and pans to be periodically flushed with hot water. The electrical control circuit described with reference to Fig. 6 (not shown) incorporates the necessary switches, relays &c. for the automatic functioning of the circulatory and replenishment stages and, through the normal actuation of changeover switches, the functioning of the flushing arrangements.
Patent GB-1358846-A (GB)
Title: Probe for gyromagnetic resonance
IPC: G01R33/31
Filed: 1970-08-03
Abstract: 1358846 Gyromagnetic resonance spectrometers PERKIN-ELMER Ltd 1 Nov 1971 [3 Aug 1970] 37431/70 Heading G1N In a variable temperature probe for nuclear magnetic resonance spectroscopy the Joule- Thomson effect is used. Working gas passes through coupling 21 and inlet tube 22, through the diffusion nozzle 5A of the Joule-Thomson cooling device 5, over an electric heater 6, flows upwardly in the annular space between the sample tube (not shown) and a glass tube 9 carrying a receiver coil 10, through apertures 3B in a plastics sleeve 3, downwardly in the annular space between tube 9 and a Dewar tube 2, spirals around heat-exchanging means 5D surrounding the Joule-Thomson device 5 and discharges to atmosphere via tube 16. A platinum temperature sensor 6C sealed in a bore in a copper bobbin 6A on which the heater coil 6B is wound is connected into a servo-loop for maintaining the temperature at a constant value. The path between the diffusion nozzle 5A and heater 6 has walls 17 of low thermal conductivity. For temperatures in the range -100‹ C to -50‹ C argon is used as the working gas. For temperatures up to 150‹ C, nitrogen is used. The Dewar tube 2 has an unmetallized window (2B) in the region of receiver coil 10 and the metallizing above and below the window is slit longitudinally in two opposite places to reduce eddy currents. The probe also includes an air turbine for sample spinning, field modulation coils 25, 26 and components 27 forming part of a receiver coil bridge.
Patent GB-1070555-A (GB)
Title: Xerographic plate fabrication
IPC: G03G15/00
Filed: 1964-09-16
Abstract: 1,070,555. Electrophotography. RANK XEROX Ltd. Sept. 16, 1964 [Sept. 26, 1963]. No. 37803/64. Heading H1K.- [Also in Division G2] A xerographic plate comprises a cylindrical drum and a photoconductive layer supported by the drum, the layer being carried by a flexible conductive sheet permanently bonded, e.g. by welding, to the drum. The photoconductive layer may be Se, S, ZnO or anthracene which may be dispersed in a resin binder. The flexible sheet, may be aluminium or brass. Details of the way in which the plate is attached to the drum are given (see Division G2).
Patent GB-622267-A (GB)
Title: Improvements in or relating to universal joints
IPC: F16D3/28
Filed: 1946-12-30
Abstract: 622,267. Springs. LLOYD, F. R. Dec. 30, 1946, No. 38037. [Class 108 (iii)] [Also in Group XXIV] In a Hooke's type universal joint the spider 12 has journals 13 on which are slid rubber bushes 14 having out-turned flanges 14a which are clamped, by the axial pressure of a bolt 15 and washer 16, between a shoulder of the spider and the bearing casing of the yokes 10, 11. In modifications the bushes may have flanges at each end, the outer flange being controlled by a cup-washer, or the washer may be reduced in diameter and be within the bearing of a yoke to provide a positive drive after a predetermined compression of the bush. Other modifications are shown in which the journal is partly spherical and in which the intermediate member is formed as a ring.