baber/WOPTO huggingface dataset:
Patent GB-1205395-A (GB)
Title: Improvements in or relating to materials which can be made light-sensitive
Inventor: ANDERSON GEORGE DE WINTER
IPC: G03C1/005
Filed: 1966-11-22
Abstract: 1,205,395. Ammonium argentobromide. MINNESOTA MINING & MFG. CO. 21 Nov., 1967 [22 Nov., 1966], No. 52310/66. Heading C1A. [Also in Division G2] Precipitated AgBr is suspended in water and heated to just below the boiling point of water and NH 4 Br added to produce an ammonium argentobromide.
Patent GB-1133622-A (GB)
Title: Tetrahedron package and manufacture thereof
IPC: B65D75/50
Filed: 1965-12-09
Abstract: 1,133,622. Tetrahedral packages. GENERAL FOODS CORP. 9 Dec., 1965 [23 Dec., 1964], No. 52397/65. Heading B8C. A container 10a in the shape of an irregular tetrahedron, each face of which represents a right triangle, is formed from a strip 51 of material which is drawn over a guide 52 to envelop a hollow mandrel 53. A sealing device 54, which may be a heated platen or a pressure applying means depending on whether the material 51 has an inner coating of heat sealing substance or pressure sensitive adhesive respectively, forms the material into a tube. Sealing jaws 55a, 55b, 55c, 55d, which may or may not be heated depending on the nature of the material 51, are mounted along the length of the tube. Jaws 55c, 55d and 55a, 55b make angles of 24 and 156 degrees respectively with the normal to the longitudinal axis of the tube and alternate jaws form seals in planes perpendicular to each other. After making a first seal and filling a container with a product poured through the hollow mandrel, the second seal is effected to close the container. Individual filled containers are obtained by severing along the second seal at its mid point. Four containers may be stacked to form a cube having open portions. By mounting jaws 55a, 55c at their complementary angles additional containers 30a may be formed, two of which are used to fill the open portions of the cube. The containers are made from paper, paperboard, metal foil &c.
Patent GB-1118502-A (GB)
Title: Method and apparatus for shaping, sharpening and polishing razor blades
IPC: B23H9/08
Filed: 1965-12-10
Abstract: <PICT:1118502/C6-C7/1> A surface on an electrically conductive workpiece is shaped by advancing a strip 1 of workpiece material, particularly a razor blade strip edgewise, past working faces 38 of one or more cathodes 15 in an electrolytic machining chamber 14 and directing a flow of fresh electrolyte continuously through the cathode(s) on to the advancing workpiece which is made an anode by passing it also through a liquid bath 3 e.g. of mercury at a positive potential with respect to that of the cathode(s), the contours of the working faces gradually changing in relation to the advance of the strip in order gradually to shape the surface being formed. The electrolyte e.g. NaCl-NaNO3 may circulate within the cathodes 15 which alternate with insulating spacers 16 from feed plenums 24 through a sluice 33 and slots 34 to return plenums 25. The strip may be passed through a further similar electrolytic polishing chamber 44 prior to cutting into blades 63.  As shown in Fig. 1, the cathodes may be arranged in groups 17-19, 51, 52 each connected to busbars 17'-19', 51', 52' connected at 20, 53 with the negative terminal of a separate D.C. contact circuit 6 including a D.C. rectifier 65, magnetic amplifier 64 and saturable reactance coil 66 for maintaining the current density constant throughout the machining and polishing chambers 14, 44.
Patent GB-1283851-A (GB)
Title: Process for the preparation of carboxylic acids
Inventor: BRASSET ERIC
IPC: C07C51/235
Filed: 1970-11-05
Abstract: 1283851 Preparation of carboxylic acids RHONE-POULENC SA 5 Nov 1970 [6 Nov 1969] 52736/70 Heading C2C Carboxylic acids are prepared by the oxidation of the corresponding aldehyde with molecular oxygen in an aqueous solution of an inorganic alkaline reagent in the presence of a palladium catalyst. The process is particularly suitable for aldehydes containing carbon-carbon unsaturation in the molecule, e.g. acrolein, methacrolein, crotonaldehyde, sorbaldehyde, cinnamaldehyde and their homologues. The preferred catalyst is metallic palladium which may be carried on a support. In the examples cinnamic acid is prepared by the oxidation of cinnamaldehyde using palladium supported on charcoal in the presence of sodium hydroxide.
Patent GB-1529585-A (GB)
Title: Process for removing endotoxin from biological fluids
IPC: A61M1/36
Filed: 1975-12-24
Abstract: 1529585 Removing endotoxin from biological liquids PREVENTIVE SYSTEMS Inc 24 Dec 1975 [27 Dec 1974 16 Dec 1975] 52800/75 Heading C1C A process for selectively removing endotoxin derived from gram-negative bacilli from biological fluids comprises: intimately contacting a biological fluid contaminated with gram-negative bacilli derived endotoxin with a non-ionogenic hydrophobic non-polar aliphatic synthetic plastic polymer selected from a substantially crystalline non-polar aliphatic hydrocarbon thermoplastic polymer, a substantially crystalline non-polar aliphatic thermoplastic fluorocarbon polymer, a cross-linked aliphatic silicone elastomeric polymer and mixtures thereof, whereby the endotoxin is adsorbed on to the surface of the polymer; and removing the biological fluid from contact with said polymer essentially free of said endotoxin. The biological fluid may be blood. The process may be carried out in vivo to purify the blood of an animal.
Patent GB-1200308-A (GB)
Title: Improvements relating to vent plugs for electric storage cells
Inventor: MCKELLEN PATRICK EWART
IPC: H01M50/627
Filed: 1966-11-28
Abstract: 1,200,308. Vent plug, filler, and levelindicating device. ELECTRIC POWER STORAGE Ltd. 27 Nov., 1967 [28 Nov., 1966], No. 53234/66. Heading H1B. A vent plug-cum-filler for an electric storage cell has a lower part 1 extending down through an opening into the cell, a wider upper part 2 communicating with a passage 10-11-12 through the lower part so as to permit liquid to flow into the cell and gas to escape from it, baffling means through which the gas must pass, a removable cover 15 containing at least part of the baffling means, including a bed of granular material 17, and a float 23 housed in the lower part having a stem 24 extending up through a bore in the plug and having its upper end visible to act as a level indicator when the cover is removed or through a window 27 in the cover.
Patent GB-1521800-A (GB)
Title: Powder feeder pick-up tube
IPC: B05B7/14
Filed: 1976-12-23
Abstract: 1521800 Powder supply system COORS CONTAINER CO 23 Dec 1976 53816/76 Heading B2L A powder feeder pick-up tube, e.g. for feeding a spray gun, for use with a hopper of finely divided powder comprises (a) a powder delivery tube 11 carrying powder entrained in propellant gas from said hopper to a point of use and having an open (lower) end for. receiving the powder and propellant gas (b) a propellant delivery tube 12 concentric with tube 11 and forming therewith an annular space 17 having an orifice adjacent the opening of tube 11 for delivery of propellant gas (c) means 35 directing gas flow from the propellant delivery tube 12 through orifice 36 and into a converging conical jet of high velocity gas for deagglomerating powder from said hopper and entraining it in the gas and (d) means 15 supplying propellant gas to tube 12. The gas flow directing means 35 may be a curved lip as shown, producing a gas cone whose angle is between 30‹ below horizontal to 80‹ above it. The powder in the hopper may be fluidized by vibration and/or by air from the propellant supply; local fluidisation may be achieved by supplying air between the outside of tube 12 and a further tube concentric therewith, whose lower end may be cylindrical or belled outwards. The air supply may also create suction in tube 11 by being fed to an injector located at the spray gun.
Patent GB-1243500-A (GB)
Title: Speed control system for rotary machines
IPC: H02P5/50
Filed: 1968-10-14
Abstract: 1,243,500. Automatic speed control. MITSUBISHI JUKOGYO K.K. Oct. 14, 1968 [Oct.14, 1967; Oct.30, 1967], No.53983/70. Divided out of 1,242,699. Heading G3R. In order to retroactively control the speed of a rotating machine 19 over a wide range a special tachometer generator 22-25, 28 is employed. The latter comprises a rotatable magnet 23 coupled to the machine 19 and a stator 24 having a primary winding 25 whereby a rotating magnetic field can be generated in the stator and an output winding 28 from which there can be extracted a signal whose frequency represents the difference between the angular velocities of the magnet 23 and the rotating field. If the machine 19 is to run at its rated speed the oscillator 27 is inoperative and the system acts like a conventional system; the output frequency is converted to a voltage in a discriminator 30 and compared with a reference voltage from 29 which represents the rated speed. The difference operates a valve 20 to adjust the speed of the machine 19. A small variation in speed can be provided by altering the reference voltage 29. When it is desired to run the machine at a speed well removed from the rated speed the oscillator delivers an output with a frequency representative of the difference between the rated speed (as set by 29) and the desired speed (set by 16) whereupon valve 20 adjusts the speed to the desired speed.
Patent GB-547484-A (GB)
Abstract: 547,484. Fluid-pressure servomotor-control systems SPERRY GYROSCOPE CO., Ltd., NISBET, R. H., and HARDING, W. G. Dec. 23, 1940, No. 18075. [Class 135] A fluid pressure control system particularly adapted for use with an automatic pilot on aircraft has a primary controller adapted upon displacement from a neutral condition to actuate a relay valve which sets a power device in operation, the primary controller being restored to its neutral position by means operated by the differential pressure applied to the power device. In the form shown in Fig. 1 the elevator 15 of an aeroplane is operated by a double-acting hydraulic cylinder 14 under the control of a piston valve 17, 18, 19 actuated by a diaphragm 10. The chambers on the two sides of the diaphragm are provided with bleed ports 11, 111 and are connected by pipes to ports 6, 61 variably obturated by a semi-circular baffle 2 actuated by a gyro-vertical. To provide a follow action the ports 6, 61 are formed in a member 5 integral with a toothed segment 54 engaged by a worm 55 adapted to be reciprocated by a piston 40 subject to the pressures on the two sides of the power piston and having its two sides connected by a throttled byepass. In this form these connections are provided by passages 50, 51 leading to ports 52, 53 in the relay valve opposite ports 22, 24 connected to pipes 31, 33 leading to the power piston one of which is provided with an adjustable throttle 38. In a modification external pipe connections are used one of which has an adjustable throttle. The piston 40 is centralized by springs 47, 471 arranged between adjustable abutments 46, 46<SP>1</SP> and flanged heads 44, 441 engaging opposite sides of the piston. The heads 44, 44<SP>1</SP> are formed on tubes 43, 431 slidably mounted on the piston rod 41 and provided with heads 45, 451 adapted to engage the abutments 46, 461 to limit the inward movements of the tubes. To adjust the follow-up connection to permit the craft to climb or descend a knob 65 is first moved inwards to disengage a clutch 68 from a gear 69 and engage a cross-pin 67 with a slot in a shaft 57 telescoping in the worm 56 and then the knob is rotated to rotate the worm by means of a pin 58. A barometric control may be introduced into the follow-up train through gear wheels 69, 70. The position of the follow-up frame is indicated by a drum 63 visible through a window and coupled by a flexible band 62 to a gear-wheel 61 meshing with the worm 55. In the modification centralizing springs are applied directly to the worm and the piston 40 is made hollow and encloses a dashpot piston coupled to the worm. Specification 416,813, [Group XXXIII], is referred to.
Patent GB-1421173-A (GB)
Title: Crowd control systems
IPC: G07C9/00
Filed: 1972-11-28
Abstract: 1421173 Limiting numbers admitted to places of entertainment BELL PUNCH CO Ltd 20 Nov 1973 [28 Nov 1972] 54811/72 Heading G4T A place of entertainment, e.g. a football stadium, has a number of enclosed, separated spectator areas, at least one turnstile or other barrier-controlled entrance to each area, each entrance being arranged to generate a signal indicative of a bona fide spectator intending to pass, and a control device for receiving the signals and operative to disable the entrance(s) to an area when the number of signals received from such entrance(s) equals the maximum permitted number of spectators within the area. Each barrier may include a ticket-issuing machine, the barrier being freed either upon issue of a ticket or upon an issued ticket passing a validity check in further apparatus associated with the barrier. The signal is generated either upon operation of the ticket-issuing button of the ticket-issuing machine or upon the validity check being performed in the further apparatus. The control device includes a counting mechanism for each area. The maximum permitted number of spectators for the area is initially set up in the mechanism and is decremented each time a signal is received, an enabling signal then being sent to the ticket-issuing machine(s) provided the number has not been reduced to zero. When the number reaches zero, no enabling pulse is sent. The ticket-issuing machine(s) may include an indicator displaying the number of places unfilled within the area.
Patent GB-1348078-A (GB)
Title: Adaptive moving target indicator clutter filter
IPC: G01S13/524
Filed: 1972-12-06
Abstract: 1348078 Pulse doppler radar WESTING- HOUSE ELECTRIC CORP 6 Dec 1972 [6 Dec 1971] 56278/72 Heading H4D A pulse Doppler radar includes a digital clutter rejection filter having a characteristic varied by a control circuit responsive to the clutter amplitude and bandwidth. In an AMTI radar in-phase and quadrature signals |I|, |Q| are added and integrated to provide a mean clutter amplitude signal, the integrator 54 output is gated over predetermined number of ground return signals and accumulated at 64 to provide a signal representing the mean clutter amplitude. This is held during the radar "look" time (during which the PRF is constant) and multiplied at 70 with a digital signal representing the clutter bandwidth. In logic 34 this resultant signal is compared with preset values stored in memory 32 to produce a signal which is fed to filters 12 1  and 12 2 , the signal amplitude determining the filter characteristics. The logic 34 output varies the gains of amplifiers K 1 , K 2 , K 3  in the active filters 12 1  and 12 2 .
Patent GB-1405908-A (GB)
Title: Liquid crystal display
IPC: G09F9/30
Filed: 1972-12-14
Abstract: 1405908 Matrix displays RCA CORPORATION 14 Dec 1972 [16 Dec 1971] 57652/72 Heading G5C A liquid crystal element is energized by applying low frequency A.C. and de-energized by a high frequency voltage which produces a D.C. level of one polarity and then a D.C. level of the opposite polarity both levels being below the  excitation level of the liquid crystal. A liquid crystal display comprises 4 figure of eight electrode arrays 1A ... 4G and 4 common backing electrodes 1 ... 4. Corresponding electrodes are interconnected by column conductors A ... G and row conductors comprise the back electrodes. Control circuitry includes two pairs of P- and N-type MOS transistors 20, 21; 22, 23 and an inverter 25 connected to each row conductor and an exclusive or gate 11 ... 17 connected to each column conductor. The electrode arrays are scanned by sequentially applying positive pulses to terminals 24, 34, 35, 36 and applying select signals to electrodes a... g. The pulses are of two low frequency cycles in duration The first positive pulse turns transistors 20, 21 on and transistors 22, 23 off thereby applying low frequency A.C. to conductor 1. When no pulse is applied the terminals 24 ... 36 are grounded and a h.f. potential is applied to the other row conductors. When no select potential is applied to terminals a ... g the gates produce the same wave form as the low frequency A.C. on terminal 10a and on the first energized row conductor and elements are not energized on row 1. In row 2, 3, 4, the low frequency signal biases the h.f. potential as shown between t 1  and t 2 . When a positive select signal is applied to an electrode a ... g a complementary waveform is produced and the corresponding liquid crystal element on row 1 is energized. The elements on the other rows have a biased h.f. potential across them which prevents their excitation or erases excitation. The system is used in watches and calculators.
Patent GB-1174139-A (GB)
Title: Dilatant Compositions
IPC: C08K3/38
Filed: 1967-12-19
Abstract: 1,174,139. Polyvinyl alcohol compositions ALLIED CHEMICAL CORP. 19 Dec., 1967 [19 Dec., 1966], No. 57668/67. Heading C3P. A dilatant composition comprises a solution comprising (A) water, (B) from 0À5 to 10% by weight, based on the weight of the solution, of a water-soluble polymer of vinyl alcohol or an ether or ester thereof, (C) from 0À001 to 5% by weight, based on the weight of the solution, of an alkali metal borate or hydrate thereof, and (D from 5 to 10% by weight, based on the weight of the solution, of a polyol. In the examples the compositions comprised polyvinyl alcohol, borax, water, TiO 2 , carbon, Fe 2 O 3 , PbCrO 4 , CoCo 3 , electrolytic copper dust, aluminium powder and ultramarine blue.
Patent GB-1181120-A (GB)
Title: New Substituted Ureas and processes for their production
IPC: C07C51/60
Filed: 1967-12-21
Abstract: 1,181,120. Herbicides containing substituted ureas. J. R. GEIGY A.G. 21 Dec., 1967 [22 Dec., 1966], No. 58209/67. Heading A5E. [Also in Division C2] Octahydro-1, 2, 4-methenopentalauryl-(5)- ureas of the formula wherein R 1  represents hydrogen, a C 1 -C 5  aliphatic hydrocarbon radical, a cycloalkyl radical, a C 1 -C 5  alkoxy radical, or the phenyl radical, R 2  represents hydrogen, a C 1 -C 5  alkyl radical, or R 1  and R 2  together represent the ethyleneoxyethylene radical or a polymethylene bridging member, are used together with suitable carriers and/or other active substances in herbicidal compositions.
Patent GB-1245325-A (GB)
Title: Exposure device for manufacturing colour display cathode-ray tubes
IPC: G02B3/02
Filed: 1969-12-01
Abstract: 1,245,325. Colour television tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 1 Dec., 1969 [4 Dec., 1968], No. 58511/69. Heading H1D. In manufacture of a colour television luminescent screen of the multi-dot type by exposure of a photo-resist through a shadow mask, a rotationally-symmetrical divergent lens 11 is disposed between the light source C1, Fig. 2, and the mask to increase the relative intensity of the light transmitted to the edges of the mask. The light intensity I# at the angle # between the axis and a line joining C1 to the edge of the screen should satisfy the condition I #  < (cos #/cosα) I α , when I α  is the intensity at the angle α given by sin α = (1 + v/f)<SP>-1</SP> sin #, where v is the distance from C1 to the lens, f is the focal length of the lens, and f < 3v. The diameter of the light source may be larger than usual and may be at least equal to 0À7LB/Q, where B is the diameter of an aperture in the centre of the mask, L is the distance ClC2 and Q is the distance between the central part of the mask and C2. The radii of curvature of the surfaces of the lens 11 should satisfy the condition R1 = v/(1 + n) and R2 = (1 + 1/n)R1 + t, where n is the refractive index and t the thickness of the central part of the lens. The apparatus shown includes a correction lens 12 which makes the directions of the light rays conform to the directions of the deflected electron beam in the finished tube, and one side of the lens has a filter layer 12a whose permeability increases from its centre towards its edge. The light source comprises a cone 10 illuminated by an electric discharge lamp, and the tip of the cone may have a diameter of 6 mm.
Patent GB-1190192-A (GB)
Title: Solenoid Assemblies
Inventor: HORLOCK BERTRAND ALBERT
IPC: H01H51/12
Filed: 1966-02-08
Abstract: 1,190,192. Electromagnetic switches. GRANADA T.V. RENTAL Ltd. 21 April, 1967 [8 Feb., 1966], No. 58786/69. Divided out of 1,190,191. Heading H1N. An electromagnet which may be a component of a " solenoid bank " as described in the parent Specification, has relatively low and high current coaxial coils 25, 18 and a first armature 23 movable, against the bias of a spring 24, in response to energization of the coil 25 to permit a spring-biased lever 22 to effect closure of the contacts of a micro-switch 21 which is in series with the coil 18. When the latter coil is energized, on closure of the microswitch 21, its armature 19 moves upward against the bias of a spring (not shown) and an armature extension 26 engages the lever 22 to re-open the contacts of the micro-switch. A latch (not shown) retains the armature 19 in its raised position and is released on operation of any of the other electromagnets in the " solenoid bank."
Patent GB-1400808-A (GB)
Title: Vacuum conveying systems
IPC: B65G53/60
Filed: 1972-12-21
Abstract: 1400808 Pneumatic conveyers MUCON ENG CO Ltd 19 Dec 1973 [21 Dec 1972] 59299/72 Heading B8A In a suction-operated pneumatic conveying system, material enters twin receiving vessels alternately as they are connected to a vacuum source, the other vessel being connected simultaneously to atmosphere in order to discharge the material therefrom, the alternate connections being controlled by a valve. In Fig. 1, valves 12, 12a connect pipes 27, 27a to vacuum and atmosphere. Fig. 2 shows one pair 3 of receiving vessels 21. As one vessel 21 is connected to atmosphere via pipe 27, the corresponding flap valve 42 is opened and the vessel discharges. Simultaneously, the other vessel 21 is connected to vacuum and material enters via pipe 25 and a non-return valve. Filters 28 are cleaned by the reverse flow of air each time the vessels are discharged.
Patent GB-1223247-A (GB)
Title: Camera with a rectractable lens barrel
IPC: G03B17/14
Filed: 1969-12-04
Abstract: 1,223,247. Cameras. FUJI PHOTO FILM CO Ltd. Dec.4, 1969 [Dec.6, 1968], No.59376/69. Heading G2A. In a camera having a retractable objective, the objective is extended into the operative position, and retracted again, by a mechanical linkage actuated by the film transport lever 2. As shown, the lever 2, which rotates the take-up spool 3, has secured to it a disc 4 having an arcuate cam slot 5, 13. A lever 6, moving about a fixed pivot 11, has a pin 7 at one end which engages in the cam slot, and at the other end a slot 8 which engages a pin 10 on the lens barrel 9. Thus rotary movement of lever 2, and hence disc 4, is translated by lever 6 into linear movement of lens barrel 9. The end part 13 of the cam slot is angled away from the uniform curvature of the remaining part 5. During the initial movement of lever 2 i.e. through the angle #, Fig.4, the film advancement mechanism is not actuated, and the engagement of pin 7 with slot 13 causes lens barrel 9 to be extended into its operative position. Pin 7 now enters slot 5, which has a uniform radius, and hence no further movement of lens barrel 9 takes place. Further rotation of lever 2 into the broken line position, Fig.4, now effects the film transport in the normal way. Retraction of the lens barrel is effected by rotating lever 2 in the other direction.