baber/WOPTO huggingface dataset:
Patent GB-922123-A (GB)
Title: Improvements in or relating to cathode-ray tube circuit arrangements
IPC: H04N9/16
Filed: 1959-11-27
Abstract: 922,123. - Television. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 27, 1959 [Dec. 2, 1958], No. 40420/59. Class 40 (3). [Also in Group XL (c)] Adjustment of the brightness control 14 of a television receiver varies the grid potential of the picture tube 3 and also varies by a like amount the bias potential applied via cathodefollower 7 to an unilaterally conducting device 6 which clips the peaks of the video signal supplied to the cathode of tube 3 via the video amplifier 5. With this arrangement, variation of the background brightness caused by rectification of signal peaks at the control grid when grid current flows and damage to the tube by excessive beam current during such signal peaks are prevented by the clipping action of device 6 for all settings of the brightness control. When the latter is adjusted for low background brightness the maximum permissible signal is effective to modulate the beam. The arrangement according to the invention may be advantageously employed to control, respectively, the electron beams for the red and blue components of a three-colour picture reproducing system.
Patent GB-1486598-A (GB)
Title: Switching circuit operative to conduct full half cycles of an ac supply
IPC: H02M1/08
Filed: 1974-09-17
Abstract: 1486598 Switching circuits for load supplies SILEC-SEMI-CONDUCTEURS 17 Sept 1974 [17 Sept 1973] 40532/74 Heading H2H A switching circuit for controlling the supply of power to a load 2 from an A.C. source VA comprises a junction gate thyristor 10 and a series circuit consisting of a capacitor 13, a resistor 12 and a diode 11, the capacitor being charged during half cycles of one polarity so that it triggers the thyristor during half cycles of the opposite polarity. A switch 15, which may be a transistor, is connected to a control terminal 16 and if the switch is non-conductive, the capacitor 13 is charged during a negative half cycle via the diode 11 and at the next positive going zero crossing of the source voltage VA the thyristor 10 is triggered to supply power to the load. If the switch 15 is made conductive during a negative half cycle, the gate and cathode of the thyristor remain at the same potential and the thyristor is not triggered. In a modification, two thyristors are connected in inverse-parallel to enable the supply of complete cycles to the load. The thyristors may be connected to the gate of a triac connected in series with the load. A control circuit is also described which allows bursts of a predetermined number of half cycles through the load.
Patent GB-1024987-A (GB)
Title: Improvements in or relating to multiple magnetic heads and to a method of making said heads
IPC: G11B5/29
Filed: 1964-10-06
Abstract: A magnetic read-write head, Fig. 1, is made up of two major sub-assemblies 1, 2 bonded to one another by epoxy resin, the sub-assemblies being previously built up with vitreous enamel.  The assembly 2 includes an inter-gap screening system, members 12-13, in which the elements 12, 17, 18, 13 are of magnetic ferrite and the elements 14, 15, 16 are of silver.  A similar arrangement of corresponding silver and ferrite elements are preferably used in the sub-assembly 1 to complete the screening.  The read and write gaps 3, 4 are formed during the build-up of the sub-assembly 2 by capillary attraction of the enamel into gaps strengthed by non-magnetic ferrite members 11.  A multiple-track embodiment, Fig. 2, is <PICT:1024987/C1/1> <PICT:1024987/C1/2> made by building up a stack as Fig. 1, but of greater width and then machining away the spaces 27, 32 into the elements 12, 13 to isolate the read and write cores. To build up the sub-assemblies, the ferrite elements are coated with a pulverized enamel suspension, which is dried and the elements heated to glaze them.  The silver elements are coated with a suspension containing powdered silver and similarly heated. This results in a surface on the silver elements which is readily wetted by a subsequent application of enamel.  All the glazed elements are again coated with the pulverized enamel suspension which is allowed to dry and the stack assembled and heated under pressure at 750 DEG C.  The composition of the enamel is:- ..By ..weight .(a) SiO2.. .. .. ...16% .B2O3 .. .. .. ...14% .ZnO .. .. .. ...10% .PbO .. .. .. ...60% .(b) B2O3 .. .. .. ...18% .ZnO .. .. .. ...16% .PbO .. .. .. ...66% .or (c) SiO2 .. .. .. ...10% .B2O3 .. .. .. ...8% .ZnO .. .. .. ...16% .PbO .. .. .. ...66%  The composition of the silver wetting agent is:- ..By ..weight .Ag .. .. .. ...93% .B2O3 .. .. .. ...7%
Patent GB-1058695-A (GB)
Title: Fungicides
IPC: A01N37/06
Filed: 1963-10-15
Abstract: A fungicidal composition for treating seeds comprises copper-bis-(dimethylacrylate) together with a carrier other than water.  The composition may contain a surface active agent, e.g. oleyl methyl tauride, cell pitch, an ahesive, another pesticide and a fertilizer.  The composition may be in the form of a wettable powder containing silicic acid functioning as an inert carrier.ALSO:A fungicidal composition comprises copper-bis-(dimethylacrylate) together with a carrier other than water.  The compositions may contain surface active agents, e.g. oleyl methyl tauride and cell pitch; adhesives, other pesticides and fertilisers.  Specified forms are wettable powders containing silicic acid.  The compositions may be used to treat seeds.
Patent GB-1153672-A (GB)
Title: Rotary Thermal Regenerator
Inventor: TURNER GEORGE GARNHAM
IPC: F02C7/105
Filed: 1966-09-13
Abstract: 1,153,672. Rotary thermal regenerators. G. G. TURNER (Caterpillar Tractor Co.). 13 Sept., 1966, No. 40778/66. Heading F4K. A rotary thermal regenerator drum 19 comprises annular end rings 31 including inner notched rings 33 spaced apart by spacer members 32 each having the form of a wedgeshaped comb with projections 47 joined to a common member 47a, and a heat exchange matrix of alternate fat and corrugated thin metal plates held in place by notches in their ends fitted over circular ribs 39 on the inner facing surfaces of rings 38. The drum 19 is supported within a regenerator housing by rollers (18) (Figs. 1, 9, not shown), which are urged against concave outer surfaces 38 of the end rings by spring devices. The longitudinal seals which maintain the separation of two regenerator housing compartments (21, 22), each include a sealing block 95 consisting of three interlocked shoes (92, 93, 94, Fig. 5), secured to flexible diaphragms 83, 88 which are fixed to concave surfaces of a support member 84 to ensure non-rotation of the shoes about their longitudinal axis and so that compressed air admitted at 102 presses the shoes close to drum 19, without risk of damage thereto. A similar arrangement exists in end seals (Fig. 3), provided at the extremities of and connected to the longitudinal seals. Each end of the drum 19 is seaed around its circumference to the housing end plates (28) (Fig. 2), by coaxial annular rings (66) each secured to a labyrinth sealing ring (67) which is uniformly pressed against the concave surface 38 of an end ring 31 by spring devices (71) (Fig. 7). The drum 19 is driven by gears (34) carried by a drive shaft (36) and meshing with notched rings 33.
Patent GB-1472956-A (GB)
Title: Letter aperture plates
IPC: A47G29/126
Filed: 1975-09-17
Abstract: 1472956 Letter plates B LILLY & SONS Ltd 17 Sept 1975 [19 Sept 1974] 40806/74 Heading A4T  A letter plate comprises a body part 11 arranged to be fixed e.g. to the face of a door, a closure flap 14 and a separate front cover 15 for frictionally engaging the body part 11. The body part 11 is preferably of moulded plastics material with holes 18-20 for receiving fastening screws, coach bolts or a bell-push, and the cover 15 comprises a metal plate with flanges 40-43 for engaging the body part 11. The flap 14 is of extruded metal, with a lower portion 33 for engaging a flange 24 of the body part 11 and supported by pivot pins (27), Fig. 2 (not shown). A torsion spring may be provided to hold the flap 14 shut. Alternatively, Fig. 13 (not shown) the flanges 42, 43 may enter slots (52), (53) in the face of the body part 11.
Patent GB-1315360-A (GB)
Title: Switching arrangements
IPC: H01P1/15
Filed: 1970-08-26
Abstract: 1315360 RF couplings MARCONI CO Ltd 26 Aug 1970 [27 Aug 1969] 40999/70 Heading H4A An R.F. input terminal 1 is connected to an R.F. load terminal 2 by a feeder 10 in which is inserted an "on-off" switching means. There is also provided, at a distance between #/4 and #/2 (# = mean operating frequency) from the terminal 2, a short-circuiting switch which is "on" when the switching means is "off", and vice versa. The arrangement prevents any power leakage through the switching means in the "off" position reaching the load terminal, while enabling a desired effective impedance at the load terminal to be achieved. Application to the successive switching of the elements of a Doppler VHF omni-range aerial array is mentioned. As described, the switching means comprises two back-to-back diodes 3, 4, and the switch consists of a single diode 12 which is connected to earth. Control voltages are applied to terminals 5, 6 which are connected respectively through R.F. chokes 7, 8, 9 to the centre and to the outers of the diodes 3, 4. Capacitors 11, 13 are connected in the feeder 10 to block the control voltages from the terminals 1, 2. When the terminal 5 is positive and the terminal 6 is negative, the diodes 3, 4 are conductive, and the diode 12 is cut-off . When the terminal 5 is negative and the terminal 6 is positive, the diodes 3, 4 are cut-off, and the diode 12 is conductive.
Patent GB-1450042-A (GB)
Title: Preparation of alkane sulphonates
IPC: C07C301/00
Filed: 1972-09-06
Abstract: 1450042 Alkanesulphonates UNILEVER Ltd 5 Sept 1973 [6 Sept 1972] 41246/72 Heading C2C A method of preparing alkane sulphonates by reacting an olefin, preferably an alpha-olefin, having a carbon chain length of from 8 to 20 with bisulphite ions in a liquid medium in the presence of a substance known to initiate said reaction, comprises the steps of: (i) forming a mixture of olefin and a co-solvent consisting of water and a short chain alcohol containing from 1 to 4 carbon atoms wherein the alcohol forms from 47% to 70% by weight of the co-solvent and the alcohol is present in an amount of from 50% to 100% by weight of the olefin, and (ii) adding an aqueous solution of bisulphite ions having a strength of more than 90% of the saturated value, containing not more than 14 mol. per cent of sulphite ions, relative to bisulphite and sulphite combined, optionally with the addition of sulphur dioxide to form bisulphite ions from the sulphite ions, to the mixture in a total amount of from 1.1 to 1.2 mols of bisulphite ion per mol of olefin and the alcohol being present in an amount from 16% to 19% by weight in the final reaction mixture. Reference has been directed by the Comptroller to Specification 1,363,848.
Patent GB-1164178-A (GB)
Title: Cleaning Composition
IPC: C11D1/72
Filed: 1967-09-11
Abstract: 1,164,178. Cleaning composition. NORTH AMERICAN DETERGENTS CORP. 11 Sept., 1967. [8 May, 1967], No. 41438/67. Heading C5D. A composition suitable for cleaning red bricks or hard stones comprises: (a) 20-33% by weight of 100% cone. H 2 SO 4 , (b) 4-8% by weight of 100% conc. HF, and (c) 0À1 to 3% by weight of a nonionic wetting agent and the balance by weight of water.
Patent GB-966105-A (GB)
Title: Mechanically operating continuously variable speed gear
IPC: F16H29/00
Filed: 1960-12-02
Abstract: 966,105. Variable speed ratchet gear; differential gear. SOC. VARIATORI GUBBIOTTI S.r.L. Dec. 2, 1960 [Jan. 11, 1960], No. 41580/60. Headings F2D and F2Q. A variable-speed ratchet gear for industrial machines or vehicles comprises a series of thrust bars 32 carried in recesses 31 in an output shaft 27 which bars are sequentially wedged between teeth 40 on the output shaft and a sleeve 11, which on rotation of an input shaft 1 is moved bodily along a circular path without rotation about its own axis, to transmit movement therebetween. The sleeve 11 is freely mounted in an eccentric recess 10 in a drum 9 which in turn is mounted in an eccentric recess 8 in a drum 7 fast with the input shaft 1. The radius of the circular path on which the sleeve 11 moves and hence the gear ratio is varied by relative rotation between the drums 7, 9. For ratio shift a hand wheel 47 is rotated to move axially a nut 50 which acts through a bell-crank 53 to move axially a sleeve 60 and shift rods 63 fast therewith. The shift rods 63 are axially slidable in grooves 64 in the outer drum 7 and have teeth 65 which engage helical grooves 66 in the drum 9 whereby axial movement of the rods 63 causes relative rotation between the drums. The sleeve 11 is connected through an Oldham coupling 26 to a sleeve 14 which is rotatably mounted in a casing 3 and is prevented from rotation by a screw 17. Springs 42 maintain contact between the thrust bars 32 and the teeth 40 when the bars are not in the wedging position. Each tooth 40 engages a notch in a slide 36 carried by the corresponding thrust bar 32, which slides accommodate for positional changes in the point of contact between the teeth 40 and bars 32. The screw 17 may be released to permit the device to operate as a differential gear.
Patent GB-1412060-A (GB)
Title: Article of furniture
IPC: A47D9/00
Filed: 1973-09-04
Abstract: 1412060 Suspended cots and seats J R MEADE 4 Sept 1973 41584/73 Heading A4J [Also in Division A6] The childs cot disclosed in U.K. Specification 1325387 is modified by forming the U-shaped torsion members 20, 22 such that their upper ends when not connected to the head members 12, 14 extend away from each other.
Patent GB-1078914-A (GB)
Title: Battery housings
IPC: H01M10/50
Filed: 1964-10-12
Abstract: 1,078,914. Electric cells. SONOTONE CORPORATION. Oct. 12, 1964 [Oct. 28, 1963], No. 41631/64. Heading H1B. An assembly of sealed rechargeable cells comprises a plurality of like insulating cases secured together to fit into any available space and having (a) parallel cell axes, (b) coplanar open chamber ends, (c) metallic connectors overlapping the side walls of two adjacent cases.
Patent GB-416400-A (GB)
IPC: H02J13/00
Abstract: 416,400. Frequency changing; changing wave form ; switching systems. HALLOWELL, E., 10, Moor Grange Rise, West Park, and NORTHERN UTILITIES TRUST, Ltd., Permanent House, The Headrow, both in Leeds. Oct. 30, 1933, No. 12481/34. Divided application. [Classes 38 (ii) and 38 (iv).] High-frequency currents are generated and superposed on an A.C. circuit by connecting in series therewith a winding having a saturated iron core and being inductively coupled to a circuit tuned to a harmonic of the normal current in the A.C. curcuit. Fig. 1 shows one arrangement in which the winding 12 in series with the A.C. circuit 10 forms the primary of a current transformer the secondary 13 of which, normally short-circuited by a switch segment 20, may be selectively connected across a variable number of condensers 15-19 whereby harmonics of different frequencies may be generated and superposed on the current in the load circuit 10. In a modification, Fig. 2, a single condenser 31 normally short circuited by a switch 28 is automatically connected across the secondary 13 in the event of the load circuit current exceeding a predetermined magnitude. The switch is operated by a coil 26 connected either in series with the secondary 13 or with the secondary of a separate current transformer. The harmonic current thus generated may be used to effect switching off of thermal storage or other load elements during peak periods.
Patent GB-1087901-A (GB)
Title: Improvements in the moulding of spherical objects, such as tennis or golf balls
IPC: B29C51/00
Filed: 1963-10-22
Abstract: Extruded rubber or plastics strip moulded into hemispherical female dies by displaceable male die members or punches is folded or brought together with a similar strip so that two hemispherical dies are coincident and join by reason of their hot and tacky state.  The spheres or balls are cured and finished.  They may be hollow or contain cores or fillings.
Patent GB-1147489-A (GB)
Title: Apparatus for automatically measuring the amplitudes of electric pulses
IPC: H03G3/20
Filed: 1967-09-13
Abstract: 1,147,489. Pulse amplitude measurement. IMPULSPHYSIK G.m.b.H. Sept.13, 1967 [Sept.23, 1966], No.41737/67. Heading G1U. Apparatus for measuring the amplitude of pulses in a pulse train comprises a variable gain amplifier and an output circuit adapted to generate an increasing output signal as long as the amplified pulses exceed a predetermined threshold value, the gain of the amplifier being reduced as a function of increasing output signal so that the amplified pulses are reduced below the threshold value, and means for measuring the output signal, this representing the amplitude of the pulses. The output of a variable gain amplifier 4, Fig. 1, is passed to a pulse amplitude discriminator 5, monostable circuit 6 and a pulse elongator 7 which charges up a capacitor, the voltage on which operates a Schmitt trigger circuit 8 feeding a Miller integrator 9 whose output is amplified at 10 and fed to the heating coils of thermistors 12, 13 in the feedback circuits of variable gain amplifiers 3, 4. The system settles down with the output of the amplifier 4 oscillating about the threshold value of the discriminator 5 and under these conditions a meter 11 indicates the amplitude of the measured pulses. In a modification, Fig. 2 (not shown) the feedback thermistors are replaced by a thermistor potentiometer arrangement between a high gain input amplifier 2 and the amplifier 3, the thermistor heating currents again being supplied by the amplifier 10.
Patent GB-1150612-A (GB)
Title: Closable Covering Caps for Containers
Inventor: PETTERSEN GUNNAR NIMROD
IPC: B65D47/14
Filed: 1966-09-20
Abstract: 1,150,612. Caps for bottles, &c. G. N. PETTERSEN. 20 Sept., 1966 [20 Sept., 19651, No. 42013/66. Heading B8T. A cap for a bottle, &c. comprises a main body 1, Fig. 5, having a pouring opening closed by a friction-fit plug 10 hinged to the main body, the plug including a lever 9 actuated to open the pourer. The cap is moulded from a plastics material, and the lever 9 as shown forms a thickened part of a hinge strap 3 connecting the main body 1 and the plug 10. The top of the cap has a hollow 7a bordered by a thickened edge 13. By pushing the lever 9 down into the hollow 7a, using the edge 13 as a fulcrum, the plug 10 is withdrawn to the tilted position shown at 2<SP>1</SP>. When the lever 9 is released, the plug 10 springs-out to the position 2<SP>11</SP>. To prevent tampering, tabs 14 at each side of the pouring opening are welded to similar tabs on the plug 10; these tabs are severed on first opening the pourer. In one modification, a cap 16, Fig. 7, has a flared pouring opening extending up from the cap top 17 for closure by a plug 21 connected to the cap by two parallel legs 27. Each leg 27 has two weakened hinge sections 26, 28. A lever 30, having a concave edge 32 and reinforcing ridges 33, extends from the top of the plug 21. To remove the plug 21 from the pouring opening 20, either (a) the lever 30 is pushed down towards the top 17 of the cap, using the inner edge of the opening as a fulcrum and tilting the plug (22<SP>111</SP>), Fig. 9 (not shown); or (b) a finger nail is inserted beneath the lever 30 to use the outer edges of the opening 20 as a fulcrum (22<SP>1</SP>), Fig. 8 (not shown). In a further modification, the fringe sections 26, 28 are omitted, the lever (44), Fig. 13 (not shown), tapering between inwardly-inclined legs (43) and a part-circular slot (46) around the plug top leaving weakened sections adjacent the legs to permit hinging. An aluminium, &c. foil (49), Fig. 14 (not shown), across the inside of the pouring opening, is pierced when the cap is initially opened.
Patent GB-1427332-A (GB)
Title: Gaskets
IPC: F16J15/10
Filed: 1972-09-12
Abstract: 1427332 Coated products ENGINEERING COMPONENTS LTD 11 Sept 1973 [12 Sept 1972] 42218/72 Heading B2E [Also in Division F2B] A cylinder head or other gaskets has particulate and/or fibrous material applied by means of an adhesive to selected portions of at least one of its faces. The adhesive may be applied by a printing process and the material may be applied by spraying or by a fluidised bed coating process. The adhesive may be a pressure sensitive one or a liquid resin film. The material is preferably a powder, e.g. a powdered epoxy resin, and may have fillers such as asbestos fibre added to it.
Patent GB-1450379-A (GB)
Title: Rocket motor propellant injectors
IPC: F02K9/52
Filed: 1970-09-03
Abstract: 1450379 Rocket propulsion engines-propellant injector DEFENCE SECRETARY OF STATE FOR 11 Aug 1971 [3 Sept 1970] 42323/70 Heading F1J A propellant injector for the introduction of at least two hypergolic liquids into a combustion chamber of a jet reaction motor includes a boss 1 projecting from the end-wall 2 of the combustion chamber, flow passages for the liquids being provided in the boss leading to conduits which are so positioned that the liquid streams impinge on one another adjacent a side wall 12 of the combustion chamber. As shown, one of the liquids flows from inlet 11 through passages 5 and 7 into the combustion chamber. The other liquid enters at 4 and flows through similar passages. Different arrangements of passages in the boss are described with reference to Figs. 3-5 (not shown).
Patent GB-1486088-A (GB)
Title: Detection and semiquantitative estimation of occult haemoglobin in biological materials
IPC: G01N33/72
Filed: 1975-10-16
Abstract: 1486088 Test strip for haemoglobin estimation LACHEMA N P 16 Oct 1975 [16 Oct 1974] 42492/75 Heading G1B A diagnostic test strip, for the detection of haemoglobin, comprises a carrier containing a chromogen and an organic hydroperoxide as a salt formed with an amine aminoalcohol or urea. The strip can further comprise a potentiating agent, e.g. quinoline or its derivatives, wetting agent and/ or film forming agent. The amines or aminoalcohols can be selected from aliphatic, alicyclic or heterocyclic compounds, the organohydroperoxides from tert. butyl hydroperoxide, phenyl isopropyl hydroperoxide, 4-methyl phenyl isopropyl hydroperoxide, phenyl-1, 4-diisopropyl dihydroperoxide, 1-hydrocyclohexyl-1-hydroperoxide, or 2, 5-dimethylhexane-2, 5-dihydroperoxide and the chromogens from benzidine, 0-tolidine, 0- dianisidine, gudiacol or 2, 7-diaminofluorene.