baber/WOPTO huggingface dataset:
Patent GB-741506-A (GB)
Title: Improvements in and relating to open cycle gas turbine power plants
Inventor: WELSH ROBERT JAMES
IPC: F02C3/22
Filed: 1953-06-23
Abstract: 741,506. Gas turbine plant. ENGLISH ELECTRIC CO., Ltd. June. 18, 1954 [June 23, 1953], No. 17373/53. Class 110(3) In an open-circuit gas turbine plant, gaseous fuel is introduced at 1 into the air supply pipe 2 of the plant compressor 3, the resulting compressed gas-air mixture being kept well below minimum explosive mixture strength and passed through the cold pass of heat exchange 4 and a reaction chamber 5 lined with catalytic material inducing an exothermic quasi-combustive reaction in the compressed mixture, and thence through the gas turbine 6, the exhaust of which is passed through the hot pass of the heat exchanger 4. The gas may be natural gas, blast furnace gas, methane from sewage plants or by-product gas from an industrial process. The chamber 5 contains a matrix heat-resistant material having a large area exposed to the gaseous mixture and coated with a catalyst such as platinized asbestos. The plant may comprise several compressors and turbines.
Patent GB-330762-A (GB)
Title: Improvements in or relating to means for controlling electric motors
IPC: H02P7/00
Filed: 1929-06-06
Abstract: 330,762. Clarke, Chapman, & Co., Ltd., and Read, A. June 6, 1929. Controllers, locking. -A disc 6 with a stepped periphery and attached to the shaft of a barrel controller is obstructed from movement to the reverse position as long as one of the pawls 1, 2 is pulled down by the energization of the coils 5 which are connected across the motor armature. Thus as long as the motor continues to run in one direction and develops a back E.M.F., its connection cannot be reversed. If the controller controls contactors for dealing with the motor current, but reverses the armature currents on the barrel, then the part 7 of the drum can be sufficiently long so that the contactor circuits can be broken but the reverser circuits cannot be broken until the coils 5 are de-energized. A modified construction is disclosed in which a double-ended pawl influenced by a single coil is used instead of the pair of pawls 1, 2<1>.
Patent GB-499938-A (GB)
Title: Improvements in or relating to means for spacing articles on conveyer belts
IPC: B65G47/31
Filed: 1938-06-14
Abstract: 499,938. Endless-belt conveyers. GRRER CO., J. W. June 14, 1938, No. 17641. Convention date, June 24, 1937. [Class 78 (i)] In means for spacing article's on convever belts two complementary moving conveyer sections separated by a transfer gap are provided in combination with means for varying inversely the relative lengths of the sections to increase the length of first one and then the other at a substantially uniform rate. Variable speed driving means is provided for driving each section at one rate while it is being increased in length and at a faster rate while it is being reduced in length, these rates being adjusted with relation to the rate of variation in length to prevent articles from crossing the transfer gap during the movement of the gap in the direction of feed, whereby a space is opened up between the articles grouped on opposite sides of the gap. The belt 12, Fig. 1, on which the articles are spaced passes over a knife edge 14 adjacent to a feeding conveyer 40, around a knife edge 18, take-up roller 16, and knife edge 20 forming a part of the compensating take-up, over an idler roller 22 adjacent to a delivery conveyer 44, around a driving drum 24 and idler roller 28 to a roller 32, take-up roll 30 and roller 34 forming another part of the compensating take-up, thence around an idler roller 36 to a driving drum 26 and back to the knife edge 14. The compensating take-up comprises two uprights 100 which are connected at their upper and lower ends by cross-members, and are formed with sleeves 108, 110, Fig. 4, which are in driving engagement with spiral cam shafts 112, 114. These shafts are connected by chain-and-sprocket gearing, and the shaft 114 is driven by a shaft 58 through similar gearing of such ratio that the take-up is reciprocated in the line of feed at substantially the same rate as the belt 12 is advanced. The driving drum 24 for the belt carries pawls 84 which are engaged by a ratchet wheel 82 fast on a shaft 66, Fig. 5. A shaft 64 in alignment with the shaft 66 is in driving connection with it through a spur gear 68, three planet gears 70, and three gears 76 which engage with a ring gear 78 secured to a housing 80 fast on the shaft 66. The shaft 64 is driven from a main drive shaft 48 through a clutch 50, shaft 52, gears 54, 56, shaft 58 and bevel gears 60, 62. A sprocket 74 fast on the shaft 66 carries the shafts 72 of the gears 70, 76 and is connected by a chain 90 to a sprocket 92 loose on the shaft 94 of the drum 26, Pawls 96 on the sprocket 92 engage a ratchet wheel 98 fast on the drum shaft. The take-up rollers 16, 30 are mounted in slidable members 140, 142, arranged in vertical guides formed in the uprights 100. The slides are moved up and down by the action of sloping rails 148 on blocks 144, 146.
Patent GB-1584938-A (GB)
Title: Cleaning blade for rotatable smooth rollers on spinning machines
IPC: D01G15/80
Filed: 1978-05-04
Abstract: The knife of the cleaning device has the form of a driven flexible band (13) tensioned between two rollers (14 and 15) and bearing along the roller surface. It strips off the roller surface by means of a sharp hard edge. The band (13) can be a thin strip of spring steel. As a result of the travel of the stripping knife edge, the dirt is removed laterally from the roller surface, thereby guaranteeing, among other things, an effective cleaning of the roller surface and the possibility of cleaning and resharpening the knife edge while the card is in operation. <IMAGE>
Patent GB-572590-A (GB)
Title: Improvements in or relating to trays and tray stacks
IPC: A47B21/04
Filed: 1943-10-28
Abstract: 572,590. Letter-trays &c. ART METAL CONSTRUCTION CO. Oct. 28,1943, No. 17803. Convention date, Feb. 4. [Class 18] Letter or like trays 11 are stacked by engaging top flanges 16 of one tray with tongues 17 formed in the bottom of the tray above so that vertical separation is orevented. The flanges and tongues may have interengaging embossments 18, and each tray may be made from a single piece of sheet material.
Patent GB-761451-A (GB)
Title: Improvements in or relating to magnetic recording media
IPC: C09D5/23
Filed: 1953-06-26
Abstract: 761,451. Magnetic dust structures. GENERAL ELECTRIC CO., Ltd., DENNIS, H. M., and POLGREEN, G. R. June 22, 1954 [June 26, 1953], No. 17825/53. Class 38 (2). A magnetic recording medium comprises a thin flexible sheet or strip of non-magnetizable material, e.g. of paper or plastic, in or on which is a substantially evenly distributed layer or dispersion of permanently magnetizable powder consisting wholly or mainly of iron and composed of crystallites having a smallest dimension less than 0.1 micron, preferably between 0.01 and 0.1 micron. The particles of the powder may comprise single or aggregate of crystallites which are the ultra-microscopic crystals constituting the ultimate constituent units, and may be produced by the methods referred to in Specification 590,392. The powder may include cobalt and/or nickel, an iron-cobalt powder containing 5-30 per cent by weight of cobalt being produced by decomposition and reduction of mixed formates, or by the method described in Specification 743,792. To accelerate the reduction process a little zinc, magnesium or aluminium dust may be mixed with the iron compound and some iron oxide may be left unreduced. The iron powder being pyrophoric must be collected in a protective liquid such as acetone or benzene, or an inert atmosphere as described in Specification 761,459. When the powder is dispersed in a plastic carrier material or mixed with an insulating material these materials may provide the protection. A suitable coating may comprise 65-80 per cent of magnetic powder mixed with 20 to 35 per cent of binder such as cellulose acetate or nitrate ball-milled in acetone. To make a sheet in which the powder is distributed, the powder optionally coated with insulating material, is dispersed in polyvinyl chloride plasticised with tricresyl phosphate, to the extent of 25-10 per cent by weight. Specification 743,791, [Group II], also is referred to.
Patent GB-1196366-A (GB)
Title: Ties
Inventor: ELSDEN HERBERT CHARLES
IPC: B65D63/10
Filed: 1968-04-16
Abstract: 1.196,366. Releasable fasteners. ROSS COURTNEY & CO. Ltd. 24 March, 1969 [16 April, 1968], No. 17832/68. Heading E2B. A tie comprises a strip of flexible plastics material 12 having a head end 15 and a tail end 13, the tail end being able to pass through a slot 16 in the head end to form a loop and being formed with a plurality of perforations 14 spaced along its length and the strip a stud secured to the strip substantially in alignment with the perforations and engageable with any one of the perforations to secure the strip in the loop. In the construction shown the strip is formed with a further stud 20 similar to the stud 17 and spaced therefrom by a distance equal to a multiple of the pitch of the perforation 14, this receives the free end of the portion of the tail of the strip and holds it tidyly. The outer end of the tail is formed with serrations 21 on its upper surface to catch in the slot 16. The perforations 14 shown are circular but can be slits or key hole shaped. The tie is made of a plastics material.
Patent GB-219703-A (GB)
Title: Improvements in electric frequency transformers and choke coils
IPC: H03B19/03
Filed: 1924-07-25
Abstract: 219,703. Telefunken Ges. f³r Drahtlose Telegraphie. July 25, 1923, [Convention date]. Inductances.-The cores of choking coils are made of ferro-magnetic material in colloidal form, which may be contained in a porcelain vessel upon which the wire is wound. To obtain a closed magnetic circuit, a tubular vessel, closed on itself, may be filled with the colloidal metal. The colloidal metal may be obtained by means of an electric arc under water, the suspension of the colloidal metal in the water being used for the cores.
Patent GB-509368-A (GB)
Title: Method of chlorinating finely divided chromite
IPC: C22B1/08
Filed: 1938-06-15
Abstract: 509,368. Chlorinating chromium ores; retorts; treating solids with gases. GREAT WESTERN ELECTRO-CHEMICAL CO. June 15, 1938, No. 17856. Convention date, June 15, 1937. [Classes 1 (i) and 1 (iii)] A chromite ore is finely divided and formed into a porous bed of less than 3 mm. thickness and chlorinated at a high temperature in the presence of a reducing agent with volatilization of its chromium, aluminium and iron contents. In carrying out the process a mixture of powdered ore, carbon and a binding agent such as water, tar or wax is agitated with carrier bodies of a comparatively inert material such as quartz mullite, coke or sintered ore, so that a film of ore from .25 mm. to .50 mm. thick is formed on the bodies. The coated bodies are continuously led down the shaft 6 of a vertical retort heated by electric resistances 8. Chlorine is led in by the pipe 12 and vapours are led off approximately a quarter of the way up the heated zone, into the condensing chamber 21. Scrapers 22 and 24 enable the condensate to be removed into the chamber 27, the gases being finally led through the cloth bag 29 to remove dust &c. which is dislodged from the material by periodic shaking. The chlorination is carried out at from 910‹-920‹C. with an excess of chlorine equal to 10-11 per cent. of the exit gases. Under these conditions aluminium iron and chromium are volatilized as chlorides, it being stated that the chromium forms a tetrachloride which is more volatile than chromic chloride and decomposes below 900‹C. Calcium and magnesium present form liquid chlorides which are absorbed by capillarity into the carrier bodies and thus are prevented from forming an impervious' layer over the unreacted ore. The carrier bodies finally pass out of the retort by the conveyer 18 and the calcium and magnesium chlorides and unreactive constituents are washed off. Alternatively the ash may be shaken off and the hygroscopic magnesium chloride serve to bind a fresh change of ore on to the bodies. The carrier bodies can vary from <3>/16 to ¥ inch in size according to the size of the retort. The carbon may be dispensed with and a mixture of hydrocarbon and chlorine or carbon tetrachloride may be used as the reagent gas. The Specification as open to inspection under Sect. 91 comprises also the modification of the process wherein other halogens may be used instead of chlorine. This subject-matter does not appear in the Specification as accepted.
Patent GB-227738-A (GB)
Title: Improvements in closure means for sterilizing vessels
IPC: A23L3/16
Filed: 1924-07-26
Abstract: 227,738. Bergedorfer Eisenwerk Akt.- Ges., Wenck, P., Maisbacher, C. W., and Fischer, A. July 26, 1924. Leakage, discharging; interconnected valve members. - A discharge valve for sterilizing apparatus &c. is provided with a chamber situated below the valve which contains a normal outlet and a drip outlet, the latter being closed when the valve is open. The valve member, Fig. 1, comprises a lower, conical portion e and upper cylindrical portion e<1>. A chamber f below the valve is provided with an annular channel g, and with an outlet h to discharge any leakage through the valve, when closed. When the valve is raised, the channel g communicates with the main outlet c, and the drip outlet h is out of register with the discharge d. The cylindrical portion e<1> prevents opening of the main valve until the outlet h is closed. Any liquid leaking past the main valve is visible, and is not allowed to mix with the sterilized liquid in the main conduit c. In a modification, Fig. 3, the main valve G is operated by means of a rotating cam P, roller R, rod K and stop L. The same rod K carries the leakage discharge valve I which is first closed before the stop L operates the main valve. The valve G is provided with a tube H which acts as an overflow when the valve G is closed. In another modification, Fig. 4, the auxiliary leakage valve 4 seats on the lower end of the main valve 2, to close the leakage outlet, and further upward movement lifts the main valve. In another modification, Fig. 6, the outlet passage 10 is controlled by an additional valve member 16 which also contains the leakage passages 15. The member 16 is lifted by means of the rod 13 so that the passages 15 are first closed and the main valve 11 is then lifted.
Patent GB-220294-A (GB)
Title: Improvements in shock absorbers
IPC: F16F7/06
Filed: 1924-07-28
Abstract: 220,294. Laforge, P. Aug. 9, 1923, [Convention date]. Vibration - dampers. - A frictional shockabsorber adapted to resist rebound comprises a fixed friction surface or drum 4 and a band &c. 3 one end of which is secured to the axle lug 6 or the like and the other end to a loop 5 through which the band 3 passes, as shown, the band therefrom having a running noose. A spring 7 is provided to move the band along the friction surface when the axle lug 6 approaches the support 1 and so keep the band taut.
Patent GB-228073-A (GB)
Title: Collecting electrodes for use in the electrical precipitation of suspended particles from gaseous fluids
IPC: B03C3/40
Filed: 1924-07-28
Abstract: 228,073. Lodge-Cottrell, Ltd., (Metallbank und Metallurgische Ges. Akt.-Ges.). July 28, 1924. Gases, electrically precipitating suspended particles from.-A collecting- electrode of concrete or other semi-conductor is built up from slabs or other elements assembled without internal re-inforcements. The slabs 1 may be connected by tongues and grooves and may be cemented together. They may be loosely held in a frame 2, preferably made of material having the same co-efficient of thermal expansion as the slabs. Ribs 3 on the slabs may be arranged so as to form continuous ridges transverse to the direction of gas flow, to provide catch-spaces as described in Specification 17840/12.
Patent GB-1060867-A (GB)
Title: Improvements in and relating to the construction of domes
IPC: E04B7/10
Filed: 1964-05-01
Abstract: 1,060,867. Spherical and hemispherical building. D. G. EMMERICH. May 1, 1964 [May 2, 1963], No. 18138/64. Heading E1A. A dome is made up by welding together rods 1, Fig. 11, as shown or by securing together flat or embossed plates 4, 5, Fig. 14, by a bolted clamp connection. The dome may be made from metals, concrete, plastic, laminates, etc. of an opaque or transparent medium. For geometric details and shapes the Specification should be referred to.
Patent GB-212483-A (GB)
Title: Improvements in and relating to variable velocity ratio gearing
IPC: F16H3/36
Filed: 1923-07-13
Abstract: 212,483. Healey, F. J. July 13, 1923. Variabie-speed gearing comprises a plurality of toothed wheels l, l<3> l<1> .. l<8> loose on a countershaft i with their rims on the surface of a cone and adapted to be engaged alternatively by a pinion g slidably splined on a driven shaft a. The individual gears such as l<7> are formed with one-way clutch teeth n, n<1> on both faces, which are normally pressed by springs m into mutual engagement, to lock the cone solid. A gear h constantly driven from a pinion c on a driving-shaft C is normally connected by a multiple-plate clutch H to the extended hub l<1> of the first cone wheel l. The gear teeth of the cone wheels l<7> &c. are tapered at w, Fig. 3, so that the spaces between the teeth may be parallel for the passage of the teeth of the pinion g. The pinion g has a toothed rim g<8> universally mounted on a spherical boss g<2>, the drive passing through balls g<5> held in recesses in the boss, and engaging grooves g<6> in the rim. Prior to a speed change, the clutch H is disengaged and the cone wheels l<3> &c. freed by applying thrust to a rod i<3> passing through the shaft i. This is done by moving an operating-lever p with a swell q to the left of Fig. 1.' Subsequent movement of the lever p perpendicular to the plane of the paper slides the piniong to its new position through toothed gearing q<1>, q<2> and a screwed rod q<6>. A direct high-speed drive is obtained through a clutch t. Reversed driving is obtained through a meshing pair o, o<1>.
Patent GB-750914-A (GB)
Title: Means for adjusting the effective throw of a crank or eccentric mechanism
IPC: B60S1/16
Filed: 1953-07-01
Abstract: 750,914. Linkwork. DUDLEY, W. July 1, 1954 [July 1, 1953], No. 18189/53. Class 80(3) In an adjustable-throw crank mechanism for windscreen wipers, a spur wheel 4 on the wiper arm spindle is oscillated by a toothed sector 3 linked to a cylindrical slide block 6 which is reciprocated at constant amplitude by a crank pin 1 on a wheel geared to an electric motor. the pin 1 engaging a diametrical groove in one end face of the slide block while its other end face has a diametrical groove engaged by a stationary guide bar 8, Fig. 2, whose inclination is varied to vary the line of reciprocation of the slide block and consequently vary the throw of the sector 3. The block 6 is carried in a ring on the inner end of the link 12, and the two diametrical grooves are at right angles. The bar 8 is mounted on a casing cover 9a by a pin 8a and is held in adjusted position by a lock nut. An adjusting arm 14 may be limited by stops to a 90 degree movement.
Patent GB-730592-A (GB)
Title: Improvements in or relating to compactors
IPC: E02D3/074
Filed: 1952-07-18
Abstract: 730,592. Percussive tools. CROUCHER, A. H., and COMPACTORS ENGINEERING, Ltd. June 22, 1953 [July 18, 1952], No. 18232/52. Class 124. A compactor comprises a framework carrying a stamping foot, a prime mover flexibly mounted for up and down movement on the framework, a pair of eccentric weights for translating rotary movement of the prime mover into reciprocating movement, and means for rigidly securing the weights in any one of a plurality of positions. As shown, a foot 1 carries a base-plate 3 across two opposite sides of which are secured plates 4 carrying U-shaped members 5 joined at an intermediate height by strips 5a. A pair of bolts 6 passing through the U-shaped members and secured at their bottom ends in the base-plate 3 carry, by springs 7 and collars 11, 11a, and 11b, a platform 8 supporting a petrol engine 12. The base-plate carries a pair of journals 13 supporting an adjustable casing 14 in which is supported a pair of rotatable eccentric weights driven by belts from the petrol engine. The strips 5a have cut-out, notched arcs which are gripped by conical pieces 20 tightened by a spoked handle 21 carried on a rod 19 fixed to the casing 14 so that the latter may be held in an angular position. Two handles 29 are provided on the platform 8 and may be fixed thereto by rubber bushings. The spring loading of the platform 8 may also include a rubber suspension.
Patent GB-222244-A (GB)
Title: Improvements in or relating to pliers
IPC: B25B7/12
Filed: 1923-07-14
Abstract: 222,244. Logan, H. T. July 14, 1923. Pliers.-Pliers, particularly adapted for use in bending wire for making jewellery, comprise a pair of spring - pressed jaws which are closed by means of a loop engaging the jaws and adapted to be turned by a handle for this purpose. The jaws 2, 3 are formed integrally with a handle part 1 by bending up a piece of resilient steel rod of circular, square or D-shaped section. The closing-member is constructed by bending a piece of sheet metal on itself to constitute a handle portion 4 and an enlarged part having two rivets 5, 6 passing therethrough, and forming the loop through which the jaws 2, 3 pass. A notch is provided in the jaw in which the rivet 6 engages, to form a fulcrum for the handle 4, the rivet 5 exerting a cam action on the jaws to close them on turning the handle. When not in use, the jaws are placed in the reverse position between the pins 5, 6 and the handle part 1 slid partly into the handle part 4, this reverse position of the jaws causing less strain on the rivets 5, 6. The part 4 may consist of a lever with a slotted end constituting the loop.
Patent GB-818738-A (GB)
Title: Stabilized vinyl resin compositions
IPC: C08K5/37
Filed: 1957-06-07
Abstract: Vinyl chloride homopolymers and copolymers are stabilized with (1) an acid-accepting colourcompatible primary stabilizer and (2) a mercapto-substituted aliphatic polybasic acid or condensation product thereof with a polyhydric alcohol.  Specified mercapto acids are thiomalic, mercaptoglutaric and mercaptoadipic acids, and specified polyhydric alcohols are ethylene glycol and propylene glycol.  (1) May be organotin compounds, e.g. dibutyl tin dilaurate, dibutyl tin maleate and dibutyl tin laurate maleate, alkaline metal salts, e.g. sodium carbonate, trimagnesium phosphate and calcium stearate, and epoxy compounds, e.g. glycidyl oleate, diglycidyl ethers of diphenols and glycidyl sorbate dimer.  Plasticizers, e.g. dioctyl phthalate, fillers, pigments, dyes, ultra-violet light-absorbing agents, densifying agents and other additives, e.g. stearic acid, may be incorporated.  Specified comonomers are vinyl acetate, vinyl butyrate, vinyl benzoate, vinyl ethyl ether, vinyl chlorethyl ether, vinyl phenyl ether, vinyl methyl ketone, vinyl phenyl ketone, acrylonitrile chloracrylonitrile, methyl acrylate, methyl methacrylate, 2-ethylhexyl acrylate, vinylidene chloride, 1-fluoro-1-chloroethylene, allylidene diacetate and chlorallylidene diacetate.  In Example III a mixture of polyvinyl chloride and vinyl chloride-2-ethylhexyl actylate copolymer is stabilized with dibutyl tin laurate maleate and thiomalic acid.
Patent GB-503293-A (GB)
Title: Improvements relating to fluid-pressure gauges or indicators
IPC: G01L7/00
Filed: 1938-06-22
Abstract: 503,293. Pressure gauges. HARCOURT, B. W., and MANN, A. J. June 22, 1938, No. 18525. [Class 106 (ii)] In a fluid-pressure gauge of the type comprising an elastic metal or other diaphragm b clamped at its periphery and responsive to negative and positive pressures, the aide of the diaphragm remote from the pressure medium is supported by a wall d in the zero position or when subjected to positive pressure, a centre portion h being unsupported and therefore deformable. Specification 499,569 is referred to.