baber/WOPTO huggingface dataset:
Patent GB-544969-A (GB)
Title: Improved porous metal articles and methods of making the same
IPC: B22F7/00
Filed: 1941-03-19
Abstract: 544,969. Filters. GENERAL MOTORS CORPORATION. March 19, 1941, No. 3750. Convention date, March 27, . 1940. Drawings to Specification. [Class 46] [Also in Groups II and XXXIV] Porous metal articles such as filter elements, having varying porosities from one side to another either gradually or in steps, are made by depositing on each other metal particles of different grain sizes and sintering them together. The sintering may be effected in stages after successive deposition of layers of different grain sizes. Deposition may be effected by agitating a mixture of metal powders of varying grain sizes in air or in a liquid such as an organic liquid and causing the particles to settle by gravity, or by distributing a layer of mixed particles on a supporting surface and agitating the surface mechanically or electrically. The particles may be deposited on a backing such as of steel, which may be perforated or may have a plated or oxidized surface, and the sintering may bond the mass to the backing. Successive layers may be of different compositions. The. production of bronze articles from copper-tin powders is referred to.
Patent GB-818909-A (GB)
Title: Improvements relating to the construction of commercial motor vehicles
IPC: B62D33/063
Filed: 1958-02-05
Abstract: 818,909. Vehicle bodies. DAIMLERBENZ A. G. Feb. 5, 1958 [Feb. 6, 1957], No. 3788/58. Class 108(1) A vehicle has a substructure 1 integrally formed with side walls 7 and 8 which support the base-plate 18 of the driver's cab 17 which is positioned longitudinally of the vehicle in dependence on the load carried on the loading surface 3. The front and rear walls 11, 12 are hinged at 13 and 14 to the substructure 1 to facilitate loading from either front or rear. The side walls may carry further load carrying platforms and may conveniently be made hollow to house suitable control lines from the driver's cab via disconnectible couplings.
Patent GB-980790-A (GB)
Title: Improvements in or relating to upsetting tools
IPC: B21D11/08
Filed: 1960-02-03
Abstract: 980,790. Upsetting. D. F. SALT. Feb. 3, 1961 [Feb. 3, 1960], No. 3804/60. Heading B3H. An upsetting tool comprises a pair of jaws 18, 19 whose working faces have metal gripping teeth and lie in a common plane within which the jaws are relatively movable to grip and upset the work, and an axially-loaded wedge 21 disposed between the jaws and shaped so as to provide a pre-load of the jaws on the work. The jaws have inclined surfaces 18a, 19a co-operating with a double inclined surface 15 on a cylindrical body 14. Wedge 21 slides along stepped surfaces 18b, 19b of the jaws and is biased by an adjustable spring 22. A sleeve 25 surrounds the jaws and has a seal 26 to prevent ingress of dirt. Lubricant grooves 17 and lubricant holding pads 15a, 18a are provided. The jaw 21 may have arcuate wedge surfaces. In another embodiment, Figs. 4, 5 (not shown) the wedge is arranged axially of the body 14. Specification 563,470 is referred to.
Patent GB-1070531-A (GB)
Title: Angular position reading head
Inventor: BERRYMAN WALTER PASCOE
IPC: G01D5/36
Filed: 1963-01-30
Abstract: 1,070,531. Angular position determination. GEORGE RICHARDS & CO. Ltd. Jan. 30, 1964 [Jan. 30, 1963], No.3893/63. Headings G1A and G1N. A device for measuring the angular position of a shaft comprises a shutter 12, Fig. 2 attached to the shaft which modulates the light from a lamp 4 falling on a number of photo-cells 7. The photo-cells being spaced relative to the apertures in the shutter so that the cycle of illumination falling on each photo-cell on rotation of the shutter, is displaced in phase by 90 relative to that falling on the adjacent cells. The output from the photo-cells is selected cyclically by a unit 8 to produce a waveform whose phase is dependent on the angular position of shutter 12 and hence of the shaft. In another embodiment Fig. 1, the shutter 2 is of cylindrical form and the light passing through the apertures in the shutters is focused by cylindrical lenses 6 on to the photocells 7. In a further embodiment Fig. 3 (not shown). The shutter is in the form of a cylindrical screen with transparent window extending around the circumference the width of the window varying, e.g. sinusoidally, with distance around the circumference. To measure an angular rotation with a greater degree of precision a shutter with a large number of apertures may be used, ambiguity about the position being eliminated by further units geared to the shaft. In addition complete rotations of the shaft may be counted using an electronic or mechanical counter. Reference is also made to using other forms of radiation source, e. g. electrostatic or electromagnetic, with the appropriate form of detector to replace the lamp and photo-cell.
Patent GB-306271-A (GB)
Title: Improvements in oil drums
IPC: B65D25/42
Filed: 1928-02-08
Abstract: 306,271. Preece, W. C. Feb. 8, 1928. Tapping; venting-apparatus. -An oil drum has extending from the bunghole 1 to the bottom a pouring out duct 2 which encloses the bunghole at the top and is cut away at the bottom at 5. One wall of the duct may be constituted by the wall of the drum and an air duct 7 may be arranged on the underside of the cover.
Patent GB-123821-A (GB)
Title: Improvements in or connected with the Carriages of Spinning Mules.
Inventor: RATCLIFFE JOSEPH
IPC: D01H3/04
Filed: 1918-03-07
Abstract: 123,821. Ratcliffe, J. March 7, 1918. Mules. - The carriages of mules are stiffened by vertical battens or members d, e secured at intervals to the inner faces of the front a and back b of the carriage. The battens pass through the flanges f, g, h.
Patent GB-113169-A (GB)
Title: Improvements in or in connection with Compressed Air Boring Machines.
Inventor: STEVENSON ELLIS
IPC: B25D17/08
Filed: 1917-03-20
Abstract: 113,169. Stevenson, E. March 20, 1917. Percussive drills. -A concave shield G is arranged on the drill steel A to deflect exhaust or leakage fluid from the motor rearwardly, and so prevent dust from being blown out of the hole being drilled.
Patent GB-1207611-A (GB)
Title: Induction pipe for an air filter of an internal combustion engine
IPC: F02M35/10
Filed: 1969-01-24
Abstract: 1,207,611. Pipe joint. FILTERWERK MANN & HUMMEL G.m.b.H. 24 Jan., 1969 [25 Jan., 1968], No. 4069/69. Heading F2G. [Also in Division F1] An induction pipe for an air filter of an internal combustion engine comprises a first pipe section 2 having one end adapted to be firmly fixed to the air filter and its other end provided with a flange 4, a curved pipe section 3 provided at its end adjacent the first pipe section 2 with a flange 5 and a ring 6 of an elastic material which engages over the two flanges 4, 5 to hold the two pipe sections together. The flanges on their adjacent faces are provided with complementary recesses 9 and projections 8, whereby the two pipe sections 2, 3 may be latched against relative rotation in a plurality of positions. The ring 6 may be of rubber. The flange of the first pipe section may be provided with a collar which overlies the flange of the curved pipe section to centre the two pipe sections relatively to each other (Fig. 6, not shown).
Patent GB-526106-A (GB)
Title: Improvements in machines for grinding or sharpening knife and like blades
IPC: B24B3/36
Filed: 1939-02-08
Abstract: 526,106. Sharpening knife &c. blades. BRITISH EMULSIFIERS, Ltd., and CURZON, T. Feb, 8, 1939, No. 4132. [Class 60] Knife and blades are sharpened by drawing them between overlapping grinding elements a and guide elements d so arranged that a radial line from the centre of b touches the periphery of d at a point midway between the maximum and minimum radii of the grinding wheel due to the permissible wear. The grinding element need not be a disc as long as its surface takes up the required relation to that of the grinder.
Patent GB-872828-A (GB)
Title: Treatment of keratinous fibres and fabrics
Inventor: HOLMES ALAN WILLIAM
IPC: D06M13/144
Filed: 1959-02-05
Abstract: Keratinous fibres are treated with an esterifying agent for carboxylic acid groups under esterifying conditions.  The esterifying agent is preferably a low molecular weight alcohol, e.g. methanol, ethanol, n-propanol or isopropanol, which is contacted with the fibres, which may be wool or hair, in the presence of an acid catalyst, e.g. hydrochloric acid, at an elevated temperature, e.g. above 50 DEG C.  The fibres may subsequently be subjected to a setting process in which the fibres, or fabrics made therefrom, are formed into the desired shape, treated with a mercapto compound, e.g. thioglycerol or ammonium thioglycollate, to break the disulphide linkages and then treated with an oxidising agent, e.g. sodium perborate. Alternatively setting may be accompanied by steaming, preferably in the presence of ammonium carbonate.  Specification 775,486 is referred to.ALSO:Keratinous fibres are treated with an esterifying agent for carboxylic acid groups under esterifying conditions.  The esterifying agent is preferably a low molecular weight alcohol, e.g. methanol, ethanol, n-propanol or isopropanol, which is contacted with the fibres, which may be wool or hair, in the presence of an acid catalyst, e.g. hydrochloric acid, at an elevated temperature, e.g. above 50 DEG C.  The fibres may subsequently be subjected to a setting process in which the fibres, or fabrics made therefrom, are formed into the desired shape, treated with a mercapto compound, e.g. thioglycerol or ammonium thioglycollate, to break the disulphide linkages and then treated with an oxidizing agent, e.g. sodium perborate. Alternatively, setting may be accomplished by steaming, preferably in the presence of ammonium carbonate.  Hair may be waved and fabrics pleated by the process.  Specification 775,486 is referred to.
Patent GB-1120003-A (GB)
IPC: B01J8/44
Filed: 1966-01-31
Abstract: <PICT:1120003/C1/1> In a heated gas-solid fluidized contactor in which solid particles are coated, e.g. UO2 or Cl/Th carbide, with pyrolytic carbon, by a thermally decomposable gas which has been mixed with an inert gas prior to entering the reactor, the products of the cracking of the hydrocarbon gas providing the coating, the gas enters the reactor 3 through a distributer consisting of a perforated cone-shaped plate 9 and a gas manifold 14.  The cone-shaped plate 9 has an included angle of between 100 and 150 degrees.  About 20% of the gas enters through line 711 and passes through a central passageway 17 which communicates with a corresponding centrally disposed aperture in the plate, the remaining approximately 80% of the gas entering through line 71 into the distributer 14 and passing through a plurality of passage-ways 15, 151 which each connect with an aperture in the plate.  The distributer is cooled by coolant circulating through casing 13 to prevent premature cracking of the gas.  The thermally decomposable gas may be methane or acetylene.
Patent GB-1060591-A (GB)
Title: Electrodeposition of gold
IPC: C25D3/48
Filed: 1964-01-31
Abstract: A method of electrodepositing gold in substantially pure form comprises using an electrolyte which does not contain any substances capable of chelating or complexing metallic impurities and which consists essentially of gold as an alkali metal gold cyanide, either boric acid/boric acid and propionic acid, or potassium acid phthalate as buffering agent, and a brightening agent which is a cobalt II or nickel II chelate of nitrilo triacetic acid, ethylene diamine tetra-acetic acid, betahydroxyethyl ethylene diamine triacetic acid, or ethylene diamine diacetic acid, the pH of the electrolyte being adjusted to a value between 3.5 and 5.  The electrolyte may also contain monopotassium phosphate and is preferably at a temp. of 70 DEG F. to 150 DEG F.  Insoluble anodes such as platinum, gold, stainless steel or carbon may be used.
Patent GB-820294-A (GB)
Title: Improvements relating to h.t. supply means for electrostatic precipitators
Inventor: HEINRICH RICHARD FRITZ
IPC: B03C3/66
Filed: 1957-02-07
Abstract: 820,294. Supply systems for electrostatic precipitators. SIMON-CARVES Ltd. Dec. 5, 1957 [Feb. 7, 1957], No. 4209/57. Class 38 (4). A supply system for an electrostatic precipitator 4 comprises H.T. transformer 1, rectifier 2, and a periodically-operated change-over switch 3 for reversing the polarity of the voltage applied to the discharge electrodes of the precipitator. When the electrode-polarity is changed from negative to positive, a contact 7 on the change-over switch opens, and resistor 6 is connected in the control circuit of a transductor 5, so reducing the output voltage of the transformer. Other means may be used for reducing the voltage at which the electrodes are charged with positive polarity. Two transformer-rectifier sets may be provided, one delivering positive and the other negative voltage to the discharge electrodes of two precipitator chambers. The voltage of each set is adjusted to an optimum value for each polarity, and change-over switches, for allowing supply of the electrodes with either polarity, are operated at desired time intervals, Fig. 2 (not shown). In another arrangement for supplying four-precipitator zones, mechanical rotary rectifiers delivering opposite polarities have their shafts coupled to distributor switches. In this arrangement, each zone is supplied with half-wave current which is reversed at suitable intervals, Fig. 3 (not shown). Full-wave voltage may be supplied for a short period to the discharge electrodes after one or a number of polarity changes.
Patent GB-607743-A (GB)
Title: An improved latch for securing gates, doors and the like
IPC: E05C19/04
Filed: 1946-02-11
Abstract: 607,743. Door fastenings. WADE, A. B. Feb. 11, 1946, No. 4211. [Class 44] A door or gate catch comprises a finger 7 mounted on the door and two spaced housings 1 mounted on the gatepost or jamb 2, each containing a spring 6 urging a ball 5 so that it protrudes partially from the housing, the protruding portions of the balls being in or nearly in contact so that the finger 7 may be pushed between the balls from either direction. The finger 7 may be locked by a plate 8 sliding in guides 9 on one of the housings and having a slot 10 to accommodate the finger 7. Instead of a sliding plate a similar plate may be hinged on to the housing 1, which may be at right angles to the container in the horizontal plane when not in use, and swung down into the vertical plane adjacent the container to lock the finger 7.
Patent GB-123840-A (GB)
Title: Improvements in Four Wheel Drive and Rolling Track Tractors.
Inventor: SPENCE WILFRID L
IPC: B60K17/34
Filed: 1918-03-12
Abstract: 123,840. Spence, W. L. March 12, 1918. Change.speed gear; transmission gear of invariable ratio; independent driving on opposite sides.-Endless-track and other tractors have all the wheels driven by means of a pair of inclined shafts D through worm gearing. The shafts D are driven through friction-disk gearing B, C arranged at each end of the central driving-shaft, steering being effected by altering the gear ratios of the friction gears. The power plant may be petrol or electric, and a pair of vehicles may be coupled together with a generator on one and a motor on the other. The driving-gear may be fitted to rail vehicles. A modification is shown in which the wheels do not track, and on one side are of the same size and on the other side of different sizes.
Patent GB-1420522-A (GB)
Title: Peat-wetting agent compositions
IPC: C05F11/04
Filed: 1973-01-27
Abstract: 1420522 Plant growth medium FISONS Ltd 6 March 1973 [6 Dec 1971 27 Jan 1973] 8974/73 and 4306/73 Divided out of 1375829 Heading ClB A composition having application as a plant growth medium comprises peat and a sulphate ester of an alkylene oxide condensate type wetting agent, e.g. wherein the ester has the empirical general Formula I wherein R is derived from an alkylene oxide condensed with an alkylphenol or an alkanol or is derived from an alkylene oxide block copolymer; M represents hydrogen, or an alkalimetal or ammonium cation; and n has a value of 0 or 1. Preferably the peat is comminuted and has the following overall characteristics: (a) a dry weight of 0À056 to 0À08, preferably 0À06 to 0À075, g per ml; (b) a water absorption of from 5 to 10, preferably 6 to 8, g per gram of dry peat solids as determined by the method herein described; (c) substantially 100% of the comminuted peat particles passing through a sieve of 9À5 mm. aperture and up to 25% by weight of the particles being retained on a sieve of 6À3 mm. aperture, the peat being dried, if necessary to a water content of less than 70% by weight, based on the total weight of water and dry peat solids, before sieving; and (d) 30 to 50% preferably 35-45%, by weight of the communited peat particles retained upon the 6À3 mm. aperture sieve sink in the flotation test herein described. Optional composition ingredients are fertilizers and carriers, specified materials being the ammonium and potassium salts of phosphoric, sulphuric and nitric acids; superphosphates, potassium hydroxide, potassium chloride, urea, ureaformaldehyde resins, trace element metal salts such as copper sulphate, ferrous sulphate, sodium molybdate and calcium tetraborate; calcium and magnesium carbonates, sand, vermiculite, perlite, and foamed synthetic resin. Nitrogen also may be introduced by ammoniation of the peat. The compositions although appearing dry and freeflowing should contain 50-70% by weight of water.
Patent GB-240356-A (GB)
Title: Improvements in spring-mattresses
IPC: A47C23/28
Filed: 1925-02-16
Abstract: 240,356. Fraser, H. A., and Crighton, P. F. Feb. 16, 1925. Mattresses. - In an anti-sagging device for a mattress of the kind having the web so supported at the side edges by inclined pivoted arms that downward pressure at the edges rocks the arms to stretch the web transversely, tension springs connect the members of each pair of arms. The metallic spring web a of the mattress is stretched between end frame members by a slidable bar and straining bolts, the side members of the frame being below and out of contact with the web. Inclined arms j pivoted at m to brackets l on the side frame members f are connected at their upper ends by wires j' to the sides of the web and are held against inward motion by a stop j<2>. Opposite pairs of arms j are connected by wires p to a tension spring o. The web is supported also by helical compression springs h resting on bars g which have on their ends pins i engaging in slots k in the arms j so that pressure on the mattress tends to turn the arms j on their pivots. The. arms j may be provided with downward extensions q connected to one end of a tension spring r connected at its other end to a bracket l clipped or screwed in the side of the frame member f.
Patent GB-216557-A (GB)
Title: Improvements in and relating to loose leaf binders
IPC: B42F13/00
Filed: 1923-02-14
Abstract: 216,557. Duncan & Son, Ltd., G., McGregor, W., Sumner, W., and Brocklebank, J. B. Feb. 14, 1923. Flexible-band files; covers. - In a loose-leaf binder of the thong type, having angular clamping-bars 4, the latter are hinged to the covers 3 by hinges each comprising a strip of metal 1 bent up along one edge to form a tubular portion 1<a>, which pivots within the angle of the clamping- bar, preferably on ball bearings 13. The tubular portion is slotted only to allow passage of the thongs, so that, when the binder is shut, the thongs are completely enclosed. The hinges are held in position by pivotal blocks 8, which fit in the ends of the clamping-bars.
Patent GB-1432725-A (GB)
Title: Method of forming microcapsule films
IPC: B01J13/04
Filed: 1974-01-30
Abstract: 1432725 Treating microcapsules FUJI PHOTO FILM CO Ltd 30 Jan 1974 [30 Jan 1973] 4416/74 Heading B8C The porosity of microcapsules prepared by any of the conventional procedures (e.g. single or complex coacervation, interfacial polymerization or in situ polymerization) is reduced by adding to the reaction mixture in which they are made, either before, during or after their formation, a water-soluble or water-dispersible, symmetric or asymmetric spiroacetal diamine or a derivative thereof or said diamine or derivative and a material which reacts therewith to form a water-insoluble material. Specified derivatives of the said diamines include compounds containing an oxirane group, e.g. an alkyl glycidyl ether, a condensate of epichlorohydrin and a bisphenol or polyglycol, a glycidyl ester, an alkylene oxide, an epoxy polybutadiene, a phenol resin precondensate, an epoxidized vegetable oil or an epoxy glyceride. Various typical encapsulating agents are mentioned, e.g. casein, gum arabic, alginates, carrageenin, copolymers of styrene with maleic anhydride, or methyl vinyl ether, cellulose and starch derivatives.
Patent GB-1360963-A (GB)
Title: Camera flash sockets
IPC: G03B15/04
Filed: 1973-01-29
Abstract: 1360963 Photographic flash apparatus POLAROID CORP 29 Jan 1973 [31 Jan 1972] 4424/73 Headings G2A and G2X A photographic camera for use, or associated, with a flash assembly of the type having a plug or connector carrying the terminals of the flashlamp(s) and further carrying a bridging conductor, has an exposure control circuit and a socket for receiving the flash assembly plug or connector, the socket including contacts for engaging the respective lamp terminals of the flash assembly and, extending from the exposure control circuit, a pair of conductors which are normally separated by a gap but are bridged by the bridging conductor when the flash assembly plug or connector is inserted into the socket whereby the exposure control circuit is converted from a daylight to a flash-light mode of operation. In one embodiment Fig.1 (not shown), a disposable flash assembly 10 having two linear arrays of flash-lamps (12), (14) facing in opposite directions has a thin connector blade 18 carrying flash-lamp terminals (20), (20a) and an adjacent bridging conductor 22; the blade is inserted in a camera socket (38) having in the form of shaped resilient strips Fig.3 (not shown), a series of contacts 46-(56) for engaging the terminals (20), (20a) and contacts 58, 60 which are bridged by conductor 22. The camera control circuit Fig. 2 contains switches S1, S2 which are respectively closed and opened when the shutter release is operated to open the shutter opening blade. When no flash assembly is present, operation of these switches (a) operates transistor Q1 which blocks transistor Q2 to put flash timing resistor 126 out of the circuit, and (b) causes capacitor 130 to be charged via photo-responsive means 108 until it triggers Schmidt trigger 90 which stops current flowing through a magnetic coil 84 which then releases the shutter closing blade. When a flash assembly is present thus bridging contacts 58, 60, transistor Q1 is shorted out so that, on operation, transistor Q2 brings flash-timing resistor 126 into the circuit; the values of Q2 and resistors 120, 122 are such that no current flows through photo-responsive means 108 and charging of capacitor 130 and hence the closure of the shutter is controlled by resistor 126. In other embodiments, the flash assembly has a pair of connector blades which straddle the camera housing Fig. 6 (not shown), or is a flash-cube Fig. 5 (not shown), or the bridging conductor 22 is connected to the ground flash terminal (20a) Fig. 3 (not shown) to reduce the number of contacts needed in the cam era.