baber/WOPTO huggingface dataset:
Patent GB-1492708-A (GB)
Title: Semiconductor optical image sensing device
IPC: H04N5/341
Filed: 1976-02-12
Abstract: 1492708 Television MATSUSHITA ELECTRONICS CORP 12 Feb 1976 [20 Feb 1975] 05568/76 Heading H4F [Also in Division H1] A semi-conductor image sensor comprises a plurality of MOSFETs M 1 -M n , Fig. 2, whose drains 8, Fig. 3, are connected to a first output line 1, photo diodes PD 1 -PD n  connected between the sources 7 and a first power supply terminal (earth), MOS capacitors C 1 -C n  connected between the gates and a second output line 2, resistors RL 1 , RL 2  connected between the output lines 1, 2 and a second power supply terminal respectively, and a differential amplifier 3 receiving the outputs from the lines 1, 2. The photodiodes PD 1 -PD n  are formed by semi-conductor regions 6, 7, the MOSFETs M 1 -M n  by semi-conductor regions 7, 6, 8 and the MOS capacitors C 1 -C n  by a semiconductor region 11 and an electrode 12, in the same semi-conductor body. A scanning pulse generator 5 successively causes the MOSFETs to conduct and the photodiode signal plus noise due to gate-drain capacitance of the MOSFETs to appear on the line 1 and simultaneously the noise due to the capacitance of the MOS capacitor, which has a similar construction to the gate-drain structure, to appear on the line 2, so that the output of the differential amplifier 3 contains only the amplified signal without the noise.
Patent GB-576581-A (GB)
Title: Improvements in and relating to holders for thermionic valves, and other electrical devices
IPC: H01R33/76
Filed: 1944-03-27
Abstract: 576,581. Thermionic valve holders. CARR FASTENER CO., Ltd., and WAGSTAFF, G. March 27, 1944, No. 5611. [Class 38 (i)] [Also in Group XXV] A flangeless conical valve holder I or similar device fitting in an aperture in a support 16 has axially spaced abutments 6, 8 engaged by the locking members 13, 9 arranged respectively above and below the support. The locking member 13 may be either a screening can or a separate ring with lugs 15 for the abutments 8, and the member 9 comprises a split metal ring having inwardly projecting lugs 11 for the abutments 6. A spring washer 19 or spring fingers on the ring 9 may take up play.
Patent GB-801868-A (GB)
Title: Improvements in or relating to woven decorative ribbons
IPC: D04D7/10
Filed: 1957-02-19
Abstract: 801,868. Rosettes. BANDFABRIK BREITENBACH A.G. Feb. 19, 1957 [Aug. 3, 1956], No. 5613/57. Class 141 [Also in Group IX] A rosette is made by attaching draw cords b to a ribbon a, either during or after weaving, the cords engaging the ribbon at points b<SP>3</SP>, b<SP>4</SP> and following a zig-zag path whereby, on pulling the cords, the ribbon is formed into loops a<SP>1</SP>. Other configurations of draw cord have the portions b<SP>1</SP> lying parallel with the edges of the ribbon, either near the edges or near the centre line; there may be only one draw cord.
Patent GB-880509-A (GB)
Title: Process for dispersing polymers
IPC: C08C1/14
Filed: 1960-02-17
Abstract: 880,509. Coagulating aqueous polymer dispersions. GRACE & CO., W. R. Feb. 17, 1960 [Feb. 24, 1959], No. 5656/60. Class 2(6) An aqueous dispersion of a polymer, which normally on precipitation yields a tough cohesive coagulum, is caused to absorb sufficient of a free-flowing volatile organic swelling agent to yield on precipitation a soft coagulum capable of being dispersed by stirring with an organic non-solvent for the polymer, and is treated with a quantity of coagulant to produce a soft coagulum consisting of microscopic polymer particles, which are then separated from the coagulum. Specified polymers are butadiene-styrene rubber, polychloroprene, butadiene-styrene-acrylonitrile terpolymer, butadiene-acrylonitrile, vinyl chloride latex and vinylidene chloride-acrylonitrile-butyl aerylate terpolymer. In some cases mixtures of the above polymers' are used. Ester gum and rosin derivatives may be added to increase the absorption. Specified swelling agents are hexane, hexane toluene, hexane-xylene, methyl chloroform, hexane-methyl ethylketone, hexane-alcohol, diisobutylketone-xylene-hexane diisobutylketonexylene-tetrahydrofuran-hexane isoheptane and octanes while specified coagulating agents are ethyl alcohol, aqueous calcium nitrate, alcoholzinc ammonium benzoate, isopropyl alcohol, and alum. Surface active agents may be present in the latex.
Patent GB-382509-A (GB)
Title: Improvements in portable cinematograph cameras
IPC: G03B1/48
Filed: 1932-02-25
Abstract: 382,509. Kinematograph cameras. MILLER, K. W., 47, Elmbridge Road, Gloucester. Feb. 25, 1932, No. 5669. [Class 97 (i).] In portable kinematograph cameras, the film gate comprises a fixed aperture plate 16, preferably grooved at 18 to provide edge support for the film, and a pressure plate 19 pressed against the plate 16 by two spring-loaded levers 22, 26b. As shown, the levers are in the form of bell cranks, the adjacent ends of which are connected by the tension spring 28, and have pins 21, 26 engaging the extremities of the presser plate. Finger-pieces at the outer extremities of the levers are provided for lifting the plate against the action of the spring. The pivot pins 23 of the levers are reduced at their middle parts to provide edge supporting guides for the film. The feed claw which is driven by a crank and guided bv a link works through central slots 15 in the plates 16, 19.
Patent GB-1525092-A (GB)
Title: Decorative trim strip
IPC: B29C48/21
Filed: 1977-02-11
Abstract: 1525092 Making profiled decorative strips AISIN SEIKI KK 11 Feb 1977 [20 Aug 1976] 05693/77 Heading B6G [Also in Division B5] A decorative trim strip of curved or angular profile, displaying a metal finish at the front face, is made by bonding a thermoplastic coating layer to the undersurface of a flat metal strip, the layer including longitudinal grooves, and bending the coated strip and heating the coating, whereby the grooves are closed and the joins dissipated. In an embodiment, the strip is coated with adhesive, the thermoplastic material is extruded on to one or both faces in the desired grooved form, and is bent by roll formers to the desired final shape whilst heating the grooved coating. Coating material applied to the outer face of the strip may be subsequently removed.
Patent GB-783272-A (GB)
Title: Improvements in or relating to electrical control apparatus
IPC: F24H9/20
Filed: 1954-02-26
Abstract: 783,272. Controlling gas burners. BASO Inc., [formerly MILWAUKEE GAS SPECIALITY CO.]. Feb. 26, 1954 [March 26, 1953], No. 5781/54. Class 75(1) [Also in Group XXXV] When a valve 29 is opened manually, water flows from an instantaneous water heater (not shown) through a conduit 10 in the direction shown. The flow of water influences a pivoted vane 61 which moves into engagement with a fixed stop 65 and acts on a sealed bellows 30 fixed centrally by a support 33 so that contacts 36, 37 within the bellows close to energize a solenoid 24 from a thermocouple 50 associated with a pilot burner 14. Solenoid 24 then opens a valve 20' to supply gas to the water heater main burner 11 which is ignited by the pilot burner. Contacts 36, 37 are then influenced by the effect of the water temperature .on bellows 30 so that water temperature is maintained constant by automatic control of the burner. The desired temperature is set by a knob 38, an internal cam surface 40 of which adjusts a spring 42 loading the bellows. A diaphragm 67 associated with an enclosure 69 and linked to bellows 30 eliminates the effect of water pressure variations on bellows 30.
Patent GB-115086-A (GB)
Title: Improvements in connection with Chain Grate or like Travelling Stokers.
Inventor: SELLENS FRANCIS CHARLES
IPC: F23H11/00
Filed: 1917-04-25
Abstract: 115,086. Sellens, F. C. April 25, 1917. Mechanical stoking.-A movable trap A is fitted beneath the forward end of a chain grate or other travelling stoker to catch any fine coal which may fall through the grate. The tray may be pivoted, so that it can be tilted to discharge its contents, or may be mounted on rollers. A plate F may also be fitted beneath the grate, and any coal which falls on to it is scraped into the tray by the lower lap of the chain.
Patent GB-852030-A (GB)
Title: Improvements in or relating to the electro-deposition of nickel
Inventor: MARX ULRICH FRANCIS
IPC: C25D3/18
Filed: 1957-02-21
Abstract: 852,030. Levelled nickel electrodeposits. WILMOT-BREEDEN Ltd. Feb. 7, 1958 [Feb. 21, 1957], No. 5829/57. Class 41 Level nickel electrodeposits are produced by an acidic aqueous nickel electrolyte solution containing a small dissolved proportion of xanthone or the 2 : 7-disulphonic acid, 2 : 7- disulphonamide, or the 2 : 7-disulphonacetamide derivative thereof. The upper concentration for the disulphonic acid derivative is given as 2 grns/litre, while the other compounds may be present up to their saturation values. The nickel solutions may be sulphate, chloride or Watts' type baths. Xanthone-2 : 7-disulphonacetamide gives bright deposits, the other additives giving only semi-bright deposits.
Patent GB-119411-A (GB)
Title: Improvements in and connected with Machines for Shaping and Profiling Metal and other Work.
IPC: B23Q35/10
Filed: 1918-04-05
Abstract: 119,411. Midgley, P., and Holroyd & Co., J. April 5, 1918. Turning.-In lathes as described in Specifications 13384/99 and 7085/04, the scroll former is so shaped that the work, such as a turbine blade, is profiled circumferentially as well as longitudinally. The former c has a spiral path which undulates and against which a bowl m is pressed by a weight and chain n. The bowl is carried by the saddle g on which is a compound slide carrying the tool d which acts on the work b. The saddle is traversed by a leadscrew i which is connected by toothed gears to the work shaft a and by chain gear h to the former c so that they all rotate in unison. In operating on turbine blades b, these are arranged about the work shaft a. The tool d may be replaced by a milling-cutter or a grinding-disk.
Patent GB-922372-A (GB)
Title: Improvements relating to formaldehyde condensation resins and their use in inks
IPC: C09D11/18
Filed: 1961-02-16
Abstract: One mole of one or more dimethylolatable monophenols is condensed in alkali at 20 DEG -80 DEG C. with one to two mole of formaldehyde, and the isolated product reacted, in steps or all at once, at above 100 DEG C., preferably 120 DEG -140 DEG C., in the melt, with 0,5 to 0,75 mole of a mixture containing an alkyl phenol having at least five carbon atoms in the alkyl groups and a hydroxybenzene carboxylic acid in the molar ratio of 1:1 to 1:2,5.  In the first step, phenol, o-, p-, or mixed cresols, chlorophenols, or methoxyphenols may be used, o-cresol being preferred.  Concentrated aqueous alkali metal hydroxide is used as catalyst, in amount approximately equivalent to, or slightly in excess over the phenolic hydroxyl groups.  40 DEG -60 DEG C. is the preferred reaction temperature.  The reaction mixture is then neutralized with, e.g. HCl or H2SO4, and the product separated by decantation, the mother liquor being extracted with ether or butanone 2 to yield more product, if desired.  The alkyl phenol in the second step has 5-15, preferably 8-12, alkyl carbon atoms, preferably in one group.  Salicyclic acid is preferred, cresotic, halogenated salicyclic or p-hydroxybenzoic also being suitable.  Any alkyl phenol which steam-distils off during the reaction is returned, and excess may be removed at the end by steam-distillation.  Alternatively, all four components may be reacted in acid medium at 90 DEG -110 DEG C. for 5-20 hours.  To speed the reaction, HCl, H2SO4, H3PO4, oxalic, formic, acetic or lactic acid may be added to augment the acidity of the hydroxy benzene carboxylic acids, and any inorganic acid added is removed from the product.  The resins are soluble in many alcohols and esters.  The resins are used with basic dyestuffs (Auramine, Rhodamine B, Crystal Violet, Victoria Blue, Malachite Green, Astra Blue6, Maxilone Blue RL) to make flexographic inks with low-boiling solvents (EtOH, MeOH), or ball-pen or ink-pad inks with high-boiling solvents (benzyl alcohol; 1,2-propylene glycol; dipropylene glycol; di- or tri-ethylene glycol; diethylene glycol monomethyl ether or di- or tri-acetate or lactate; glycerine di- or tri-acetate).  Ink-pad inks contain about 10 parts dye or a salt thereof to about 90 parts resin-solvent mixture, ball-pen inks 20 to 80.
Patent GB-788211-A (GB)
Title: Improvements relating to the determination of small amounts of silver in water
Inventor: CHESNEY WILLIAM ELMER
IPC: G01N21/77
Filed: 1956-02-24
Abstract: Small amounts of silver in water are quantitatively estimated by converting the silver into an insoluble compound, e.g. iodide; collecting the insoluble silver compound on a restricted area of a membrane filter; converting the insoluble silver compound to a coloured silver compound, e.g. sulphide, and comparing with silver standards prepared in the same way.
Patent GB-1204423-A (GB)
Title: Catalytic oxidation unit
Inventor: SMITH DAVID GIBBONS
IPC: F24C15/20
Filed: 1968-02-06
Abstract: 1,204,423. Catalytic apparatus. MOFFATS Ltd. 6 Feb., 1969 [6 Feb., 1968], No. 5881/68. Heading B1F. [Also in Division F4] A catalytic oxidation element 31, which may comprise a platinum coating on ceramic honey comb material, is arranged in a split tube 27 of deformable material so that the element and tube can be readily fitted into. place to act as an oven vent. The element is held in place by a spring clip 32 engaging annular grooves 37, 38 in the tube 27, and may be supported by lugs 24 projecting from a locating collar 22 on the oven over which the tube fits.
Patent GB-160762-A (GB)
Title: Improvements in sand filters
Filed: 1921-02-21
Abstract: 160,762. Raimbert, L. E. March 23,1920, [Convention date]. Filters with loose filtering-materials.-An annular bed 1 of sand is confined by two series of superposed conical rings 6, 9 and provided at the centre with a water-operated injector 3 and a tube 4 through which the sand is removed to a washer. The uppermost rings have cylindrical extensions 6<11>, 9<11>, and the extension 9<11> a cover 5. The liquid passes through from an inlet 8 to an outlet 12 or in the reverse direction. The annular collector at the lower end of the tube 4 has an upper surface so inclined that it forms the lowermost ring of the inner series. The rings and the casing 7 may be made of ceramic wax or lead, or the inner wall of the casing 7 may be covered with vitrified sheet iron, varnish, enamel, or a lining of lead.
Patent GB-849354-A (GB)
Title: Sleeve-tuned tuner with variable coupling
IPC: H03J3/06
Filed: 1958-02-24
Abstract: 849,354. Band-pass filters. ALADDIN INDUSTRIES Inc. Feb. 24, 1958 [June 12, 1957], No. 5908/58. Class 40(8). [Also in Group XXXV, XXXVI and XL(c)] In a television receiver using a tuner described in Group XXXVI, the anode circuit of a radio frequency amplifier 22 and the grid circuit of a mixer 23 are tuned by coils 4 and self capacitance of coils and valves. This arrangement provides a band-pass filter, the centre frequency of which is tunable over the television band by vertical movement of conducting sleeves 11. Trimming inductors 27, 33 are provided. The coils 4 are coupled by mutual inductance and stray capacitance, additional coupling being provided at low frequencies by a loop 40 having one or more turns. A common impedance coupling is provided by the series circuit 36, 37 tuned to a frequency above the tuning range and capacitively coupled to each coil via fixed sleeves 14 and the movable sleeves 11. The inductor 37 may be omitted. The band width is made constant at high frequencies by the shielding effect of the movable sleeve 11 as it becomes interposed between the coils 4 and the loop 40. Specification 771,088 is referred to.
Patent GB-301678-A (GB)
Title: Improvements in or relating to ring spinning frames for woollens
IPC: D01H7/92
Filed: 1928-02-27
Abstract: 301,678. Jowett, P., Marsh, M. C., and British Research Association for the Woollen & Worsted Industries. Feb. 27, 1928. Twist tubes. - In ring spinning-frames for woollens means, which is applicable also to the spinning of cotton and other fibres, is provided in place of the usual deflecting rod whereby the tension of the yarn controls the angle and the mode of entrance of the yarn into the twist tube arranged behind the drawing-rollers. The mouthpiece 7 of the twist tube is flared and provided with notches, or projections constituted by pins 9, and the yarn passes, over a controller comprising a floating counterbalanced roller 3, whereby the angle at which the yarn enters the twist tube amd the engagement thereof with the notches for projections are automatically controlled, and a rotary roller 2, whereby such angle is limited. The bore of the tube may be smooth, rough, or rifled, and spring jaws 10 are provided and are so shaped that they may be brought close to the nip of the drawing-rollers 11.
Patent GB-195842-A (GB)
Title: Improvements in or relating to speed indicators
IPC: G01P1/10
Filed: 1922-03-01
Abstract: 195,842. Melotte, A. Murch 1, 1922. Impulse and momentum speed indicators; particular-speed alarms.-A speed indicator comprises a drum 8, adapted to be secured to the shaft of which the speed is to be indicated; a ball 14 in the drum is raised at intervals by a bent strip 7 as the drum rotates and, at a certain speed, falls through an opening 19 on to the wall of the drum, thus giving an audible indication that this speed is attained. Two lifting-devices with corresponding openings may be provided and various combinations for indicating the speed may be arranged such as two sounds per revolution of the normal speed, one sound per revolution of below normal, and no sound when the maximum speed is developed. In a simple form the lifting-device comprises a strip projecting from the wall of the drum. The bottom plate 5 of the drum is shown attached to the shaft 11 and crank 15 of a creamseparator by resilient lugs 12, 13.
Patent GB-306845-A (GB)
Title: Improvements in and relating to flowboxes for paper, board and pulp making machines
IPC: D21F1/02
Filed: 1929-02-25
Abstract: 306,845. Voith, W., Voith, H., and Voith, H., (trading as Voith, J. M.). Feb. 25, 1928, [Convention date]. Fourdrinier machines; pulp, regulating flow of. - In a flow box for a papermaking machine the rotary mixing roll i for agitating and distributing the pulp is mounted so as to be entirely or substantially entirely below the level of delivery of the pulp even with low effective heads. One or more dams or sluices k are provided so that all pulp is passed through the roll when employing higher heads.
Patent GB-642199-A (GB)
Title: Improvements in, or relating to, induction furnaces
IPC: H05B6/20
Filed: 1948-02-28
Abstract: 642,199. Induction furnaces. BIRLEC, Ltd. Feb. 28, 1948, No. 6251. Convention date, Nov. 13, 1943. [Class 39(iii)] In an induction furnace of the submerged resistor type having three straight connection channels 4, 5 between the hearth 2 and a horizontal channel 7 which together form two secondary melting loops threaded by two primary coils 8, the channels are of uniform cross sectional area and the cross sectional area of the bottom channel 7 is greater than that of any of the channels 4, 5. The furnace is suitable for melting light metals and the straight vertical channels 4, 5 have no flaring end portions. The ratio of the cross-sectional areas of the horizontal channel 7, the central vertical channel 5 and each of the outer lateral channels 4 approximates to 3:2:1. The roof part of the bottom channel 7 and the bottom section of the hearth are each formed with a groove leading to the vertical channels. Air is blown over the primary coils 8, which are of rectangular cross section each wound on a closed iron core 10 and may be connected in series or parallel. Specifications 571,304 and 575,780 are referred to.
Patent GB-214051-A (GB)
Title: A wrench
IPC: B25B13/22
Filed: 1923-03-05
Abstract: 214,051. Becklin, O. March 5, 1923. Pivoted and sliding jaw wrenches. -Relates to wrenches of the kind in which a shank carrying one jaw is provided with a rack the teeth of which slope transversely from ona face of the shank to the other, and a toothed locking block for engaging the rack is carried by the other jaw-carrying member and is pivoted upon an arm parallel to the shank, and consists in an improved construction and arrangement of the locking block. In one form, Figs. 1 and 4, the shank 1 carrying the fixed jaw 3 has rack teeth 8 sloping from one face of the shank to the other, and a toothed block 12 for engaging the teeth 8 is pivoted by integral pins 13 in a casing 6 which slidably embraces the shank 1. The pins 13 are mounted respectively in a hole 14 in a wall 27 fixed to the casing, and in a slot 15 in the rear end 28 of the casing, a rod 16, extending across the casing, being provided to retain the pin in the slot. A thumbpiece 17, fixed to the rear pin 13, is provided with a spring pin 18 to engage a pair of notches 21 in the casing to hold the block in the locking and released positions. The outer jaw 4 is carried by a shank 5 pivoted to the casing 6 and guided by a yoke 7 fixed to the shank 1, a flat spring 34 fixed to the yoke and bearing against the shank 5 preferably being provided. The locking block 12 may be applied to the form of wrench in which the inner jaw is fixed to a casing slidable on the shank of the fixed outer jaw, and also to the form of wrench in which a head on one end of the handle is formed with a fixed jaw and carries the sliding jaw, the locking block in the latter case being mounted' in an opening in the head and engaging teeth on the shank of the movable jaw. The spring pin 18 may be mounted in the casing instead of on the thumb-piece 17.