baber/WOPTO huggingface dataset:
Patent GB-1025840-A (GB)
Title: Sealing element for rotary mechanical seal
IPC: F16J15/34
Filed: 1964-11-25
Abstract: 1,025,840. Mechanical seals. CRANE PACKING CO. Nov. 25, 1964 [Nov. 29, 1963], No. 48003/64. Heading F2B. A mechanical seal assembly comprises a sealing washer 15 axially movable relative to a housing 10 and an annular sealing element 20 which is arranged in a cavity defined by radiallyspaced walls of the washer and housing and formed of both a circular part adapted to engage one of the walls and a sleeve part flexibly-mounted to it and adapted to engage the opposite wall, the arrangement being such that upon relative axial movement of the washer and housing the circular part rolls upon the sleeve, the combined radial dimension of the circular part and sleeve becoming greater than the radial dimension of the cavity during the rolling so as to compress the sealing element between the walls and effect a seal therebetween. As shown, the sealing assembly is also applied to a roller 12 which is rotatable through a bearing 13 on a stub shaft 11 of a track-laying vehicle, the sealing elements 20 providing a resilient connection between both the roller 12 and its washer 14 and the housing 10 and its washer 15. The sealing elements may be interchanged with others of different contours to vary the degree of pressure exerted by the elements. In a modification, Fig. 5 (not shown), the sealing element is provided with a sleeve of constant thickness along its length for co-operating with a cavity 32 having a conical rather than a cylindrical wall 32. In another embodiment, instead of the housing, the washer is provided with a cavity into which the housing extends upon relative movement.
Patent GB-1364148-A (GB)
Title: Control of iron ore agglomeration
IPC: C22B1/20
Filed: 1972-10-18
Abstract: 1364148 Automatic sintering control CENTRE DE RECHEKCHES METALLURGIQUES 18 Oct 1972 [18 Oct 1971] 48082/72 Heading C1A [Also in Division G3] A continuous process for sintering iron ore is automatically. controlled by at least three closed loop systems: (a) the gas permeability of the sintered material is measured, compared with a reference P<0> and the error used to regulate the addition of water to the process input, (b) a "magnetic index" of the sintered material is measured, compared with a reference (MI)<0> and the error used to regulate the fuel supplied to the process, and (c) the position of the breakthrough of the flame front is measured, compared with a reference (PP)‹ and the error used to regulate either the speed of a belt which conveys the material through the process or the speed of a ventilating fan. In the embodiment there is a fourth loop in which the weight of a hopper of return fines, either from the process alone or from the process plus those from a subsequent blast furnace, is compared with a reference value (PT)‹ and the error used to regulate the quantity of return fines fed to the process. The weight of the hopper is deduced from continuous measurement of the weight of return fines fed to it and those leaving it. This error is also used to regulate the fuel by addition to the MI error. The reference value P‹ is automatically varied by an arrangement which assesses the effect of added water on a given raw material (which varies); variations #Q in the water supply are deliberately imposed by a signal generator nd their effect #P is measured by a filter; the ratio #P/#Q is compared with a reference value and any error adjusts P‹. A change in P‹ also adjusts the belt or fan speed by addition to the signal from a comparator. The reference value (MI)<0> is also automatically adjusted in response to periodic measurements of the quality of the product, i.e. its strength and/or reducibility and/or its molecular analysis. The gain and dead band of the various regulators may be automatically adjusted according to variations in the mixture being processed and belt speed respectively.
Patent GB-1070805-A (GB)
Title: Improvements in and relating to frames for two wheeled cycle vehicles
Inventor: UNCLES PHILIP BASIL
IPC: B62K3/10
Filed: 1964-11-27
Abstract: 1,070,805. Frames for two-wheeled cycle vehicles. MOULTON CONSULTANTS Ltd. Nov. 25, 1965 [Nov. 27, 1964], No. 48347/64. Heading B7E. A steel or aluminium F-frame for pedal bicycles and mopeds, wherein the junctions between the backbone 1 and the front tube 2, and the seat tube 3 and the backbone 1 are formed by fillet brazing or CO 2  welding of the metal edges of ears 5, 6 on the backbone 1 and on the seat tube 3 respectively, to the front tube 2 and the backbone 1 respectively. The backbone is a flat-sided oval in cross-section with its major axis vertical, and the lower end of the front tube is larger in diameter than the width of the backbone; a sleeve 12 is fixed in the front tube. A bracing member 10 abuts with metal edges 10a against the backbone, and it is fillet-brazed there and at 10b and 10c where it passes through the seat tube 3. A housing 4 for a pedal crank axle is located by a bracket 7 fillet-brazed by its edges 7a to the backbone 1, and the housing is fillet-brazed at 8 to the bracket 7 and at 9 to the lower ends of the ears 6. The ears 6, Fig. 5 (not shown), are formed so that only the edges of the ears abut the backbone 1, and may be fluted and thickened.
Patent GB-1109915-A (GB)
Title: Inspection fitting for pipework
Inventor: HOLLOWAY WILLIAM JAMES
IPC: F16L45/00
Filed: 1965-11-16
Abstract: 1,109,915. Inspection fittings. YORKSHIRE IMPERIAL METALS Ltd. 8 Nov., 1966 [16 Nov., 1965], No. 48562/65. Heading F2P. A body 1 has two or more openings for the reception of the ends of pipes and an inspection opening 3 closed by a dished cover-plate 6 which projects into the opening and has an annular lip 7 adapted to compress a gasket 9 on to a lip 4 around the opening and to form a fluid seal. The cover may be held in place by bolts 8 screwed into a backing ring 5 and have a domed base of a shape which forms a continuance of the internal shape of the body 1.
Patent GB-1533403-A (GB)
Title: Vacuum circuit interrupters
IPC: H01H1/02
Filed: 1975-11-27
Abstract: 1533403 Making contacts GENERAL ELECTRIC CO 27 Nov 1975 [3 Dec 1974] 48792/75 Heading B3A [Also in Division H1] Electric vacuum switch contacts are made from beryllium formed from an ingot cast in an inert environment, which ingot has been subjected to hot working to produce a microstructure wherein grain boundaries are free of oxygen on the interfaces between the grains. The ingot of beryllium is formed by vacuum induction melting high purity electrolytic flake beryllium in a beryllium oxide crucible and then under vacuum pouring the melt into a graphite or other suitable mould. It is cooled in such a way as to effect controlled directional solidification from the bottom to the top of the mould to form a fine-grain ingot. After the ingot is formed, it is jacketed in a mild steel container which is evacuated and sealed. This jacketed ingot is hot worked by extrusion, which converts the ingot into a flattened slab or other suitable shape having its grains oriented in the direction of extrusion, after which the jacket is suitably removed, as by pickling. The switch contacts are cut out of the flattened slab. Instead of a vacuum an inert environment such as argon gas may be used.
Patent GB-1009369-A (GB)
Title: Preparation of pollen allergens
IPC: A61K39/36
Filed: 1963-12-11
Abstract: Active allergens are obtained from pollen by extraction with aqueous acid and addition to the extract of picric acid, thereby forming an "allergen picrate" which precipitates and may be removed and decomposed by treatment with acid.  Dialysis of the resulting solution, e.g. against N/1000 HCl, gives an allergen solution which may be lyophilised to give a stable, solid product.
Patent GB-1298966-A (GB)
Title: Heating apparatus particularly bakers ovens
Inventor: STAMPER JOHN RAYMOND
IPC: A21B1/48
Filed: 1970-10-14
Abstract: 1298966 Heating bakers' ovens BAKER PERKINS Ltd 24 Aug 1971 [14 Oct 1970] 48927/70 Heading A2A Heating apparatus such as a bakers' oven has a continuous gas circulation system comprising means for withdrawing gas from the oven chamber, means for heating the withdrawn gas, first duct means to receive the heated gas and Serve as radiant heating means for the chamber, and second duct means receiving gas from the first duct means and discharging it into the chamber; the first duct means being positioned in the path of the gas discharged from the second duct means. In a bakers' two-zone tunnel oven having a conveyer 2, each zone A, B has a separate circulation system comprising a header 5 through which gas is withdrawn from the zone by a fan (not shown), a gas burner (not shown) for heating the withdrawn gas by mixing products of combustion with it, headers 8, &a in the base and roof of the oven chamber receiving the heated gas, a series of radiant heating ducts 10 extending in either direction from each header 8, 8a to branch connections 12, and a series of discharge tubes 11 extending from the connections 12 and having inwardly directed openings. Each series of ducts 10 and tubes 11 comprises a row of parallel tubes disposed across the width of the chamber, and the tubes 11 are staggered with respect to the ducts 10 so that the discharged gas is directed between the ducts 10. The gas passing between the ducts 10 induces a circulation in the chamber, except in the first part of the feed zone A where, to provide for more gentle heating, the spaces between the ducts 10 are bridged by baffles so that the gas does not pass directly into the chamber 1 but is deflected around the sides thereof. A quantity of gas is exhausted from each zone to compensate for the inflow of products of combustion from the burner. The invention may also be applied to an oven in which goods are carried along upper and lower runs of a swing-tray conveyer, heating tubes being arranged above the upper run, below the lower run, and between the two runs.
Patent GB-1037897-A (GB)
Title: Preparation of isopropenyl esters of dicarboxylic acids
Filed: 1964-12-02
Abstract: Isopropenyl esters of dicarboxylic acids are prepared by reacting a saturated aliphatic dicarboxylic acid with methylacetylene in an inert solvent and in the presence of a mercury salt and boron trifluoride.  Esters claimed are of a .o  dicarboxylic acids with 5 to 10 carbon atoms and hydrogenated dimerized linoleic acid, specifically, diisopropenyl glutonate, azelate, suberate, sebacate, and the diisopropenyl ester of hydrogenated dimerized linoleic acid. The esters are purified preferably by falling film molecular distillation and half esters may also be isolated.  The products may be polymerized.
Patent GB-1133758-A (GB)
Title: Improvements in or relating to potato products
IPC: A23L19/12
Filed: 1967-10-28
Abstract: 1,133,758. Potato products. H. R. READ 28 Oct., 1967, No. 49074/67. Heading A2B. Potatoes are cooked by frying or heating with an edible fat or oil or by roasting, and the cooked potatoes are compressed. The potatoes may first be steamed or boiled and then mashed and mixed with flavouring agents, prior to roasting in tubes, with or without edible oil, and compression through a hydraulic press or extruder screw. Cooking is generally continued for such a time that the product will have a moisture content below 10%. The product may be in the form of partly sectioned or perforated blocks, biscuits or flakes, or of granules, and these may be stored in packages proofed against air, moisture and light, or may be deep frozen. The following foods and flavourings may be added to the potato before, during or after the cooking: meat, fish, vegetables, fruit, cereals, nuts, herbs, sugar and sugary products, yeast, vegetable extracts, sauces, monosodium glutamate, household condiments and heat-stable vitamins.
Patent GB-1397884-A (GB)
Title: Graphic arts film dryer
IPC: F26B13/04
Filed: 1973-10-24
Abstract: 1397884 Drying films D C EDGINGTON and W E EDGINGTON 24 Oct 1973 [30 Oct 1972] 49618/73 Heading F4G A film dryer comprises a cabinet 14 having an inlet 16 and outlet 18, a plurality of pair of rolls 22 the rolls of each pair being respectively above and below a plane 28 passing through the inlet and outlet, the rolls being arranged in a succession of such pairs, and each roll being made up of a sections 38 extending transverse to the plane, the sections 38 of successive pairs being offset overlapping and interfilled. In use a film 21 passes through inlet 16 and is gripped by the first pair of rolls 22a and passes through successive pairs of a first group of main rolls 30. The film is then gripped by changeover rolls 34 having sections 40 of half the thickness of the main rolls, and passes to a second group of main rolls 32 offset from the first. The rolls are driven by a worm 44, Fig. 6 (not shown), which works with worm gears (46) provided on the shafts 36 of the rolls. The main groups of rolls 30, 32 act as squeeges to remove some moisture, this action being supplemented air blown through conduits on to the sheets.
Patent GB-1156509-A (GB)
Title: Improvements in Drum Sieves
Inventor: HASTRUP NIELS ERIK
IPC: B07B1/18
Filed: 1966-11-08
Abstract: 1,156,509. Rotary sieves. F. L. SMIDTH & CO. A/S. 8 Nov.. 1966, No. 49939/66. Heading B2H.  In a rotary cylindrical sieve drum 3 having an inlet 7 at one end and, at the opposite discharge end, a wall 6 preventing axial discharge of material, a channel 12, Fig. 1, extending around the drum axis and circumferentially bounded by a sieve is provided at the discharge end and has an inlet 15 for the admission of tailings and an outlet 16, Fig. 4, for their discharge, the construction being such that as the drum rotates the tailings must slide over the sieve surface of the channel in order to reach the outlet 16 from the inlet 15. As shown in Fig. 1, the channel 12 is provided inside the drum and is circumferentially bounded by part of the drum sieve 4. Alternatively, the channel may be outside the drum, the inlet to it being in the end wall of the drum. The channel 12 is tubular and is quadrilateral in cross-section being bounded by the drum sieve, the end wall 6, a cylindrical wall 14 and a raldial wall 13 fixed along a helical path. The mouth of the channel is open and forms the inlet 15. The outlet 16 is formed in the end wall 6. In operation, ground material from a tube mill 1 passes through a hollow stub shaft 2 into the drum 3. Most of the fines pass through the sieve 4 and are discharged via a hopper 9. The tailings and the remainder of the fines accumulate at the discharge end of the drum where at each rotation of the latter some of this mixture is scooped up by the mouth 15 of the channel. During the next rotation of the drum the mixture is thoroughly screened so that only the tailings pass out through the opening 16 and fall into a hopper 11. In a modification, Fig. 6 (not shown), an open channel (17) is provided instead of the tubular one. In a further modification, an open channel 17, Fig. 7, is cylindrical instead of helical, being bounded on one side by an annular wall 18. The inlet is formed by a slot (19), Fig. 9 (not shown) in the wall 18 and the outlet is in the sieve surface of the channel and coincides with the mouth of a discharge chute 21.
Patent GB-1246683-A (GB)
Title: Abrasion test device
IPC: G01N3/56
Filed: 1968-10-22
Abstract: 1, 246, 683. Testing abrasion resistance. DAYCO CORP. Oct. 22, 1968 [Dec. 1, 1967 No.50073/68. Heading G1S. A device for testing the abrasion resistance of materials such as elastomeric and plastics materials comprises a rotatable container 34 and means for reciprocating a specimen 27 into and out of abrasive material in the container while the container is rotating. The abrasive material may be sand, gravel, pumice, &c. and the container is rotated by a belt 33 and a motor 31. A motor 12 rotates a disc 19 to which a rod 21 is connected by an eccentrically mounted pin 20 thus causing reciprocating movement of a sleeve 23 connected by a pin 22 to the rod. The specimen 27 is connected by a pin 26 to the sleeve and guides 24, 29 are provided. The wear on the specimen is measured by weighing the specimen before and after the test.
Patent GB-1516689-A (GB)
Title: Manufacture of boron nitride
IPC: C01B21/064
Filed: 1975-12-09
Abstract: 1516689 Boron nitride ELEKTROSCHMELZWERK KEMPTEN GmbH 9 Dec 1975 [30 Dec 1974] 50418/75 Heading C1A Boron nitride is made by reacting an alkali metal boride or alkaline earth metal boride with nitrogen, at a temperature of 900 to 3000C, in the presence of an auxiliary substance selected from carbon, boron carbide, boric acid, boron trioxide, iron, iron oxides, and carbonates, borates, hydroxides and oxides of alkali metals and of alkaline earth metals. Hexaborides and dodecaborides are preferred, especially calcium hexaboride, and the reaction may be effected at at least 1400C, or, using elevated pressure, at 900 to 1000C. Examples relate to the use of lithium dodecaboride, magnesium boride, and calcium boride, with carbon and boric acid or boron trioxide as auxiliaries.
Patent GB-1161086-A (GB)
Title: Improvements in Fluid Flow Simulation Apparatus.
Inventor: BOXALL EDWARD REX
IPC: G06G7/57
Filed: 1966-11-10
Abstract: 1,161,086. Simulation circuits. BRITISH AIRCRAFT CORP. Ltd. 10 Nov., 1967 [10 Nov., 1966], No. 50486/66. Heading G4G. In a fluid flow simulation circuit, a variable input voltage E representing head is applied over resistance R 1  to a combination network of resistors and shunting diodes whose junctions are biased over resistances from a fixed supply (Fig. 1), and an amplifier of high output impedance comprising complementary PNP and NPN transistors T 1 , T 2  (Fig. 2) receives the input voltage in series with a static 10v. source as supply Vs, while the voltage V c  at the junction of R 1  and the resistance/diode network is applied as input to the base of T 1  emitter coupled to the base of T 2 , which has an emitter load resistor R 0  in series with the supply. Fluctuations in base emitter voltage of T 2  are thus compensated. It is shown that the input current I TOT  and voltage E are connected by the law where K and α are constants, so that the coefficient of I TOT n is variable by switching different values of R 0  and potentiometrically varying R 1 . Flow reversal may be accommodated by applying input voltage through a bridge rectifier. Transistor T 2  may be of reduced power and followed by plural PNP transistors with collectors connected to R 0 .
Patent GB-1386828-A (GB)
Title: Apparatus for handling articles
IPC: B25J9/14
Filed: 1972-11-02
Abstract: 1386828 Platform elevators FUJIKOSHI KK 2 Nov 1972 [6 Nov 1971 2 Oct 1972] 50502/72 Heading B8H [Also in Division G3] Article handling apparatus comprises a base 101 on which a platform 102 is mounted for movement in a vertical direction relative thereto by means of two pairs of crossed bars 104, 106 and (103, 105), Fig. 3 (not shown), located on opposite sides of the platform 102, there being a rotatably mounted vertical shaft 162 mounted in a shaft housing 161 located on the underside of the platform 102 and an arm 200 located in an arm holder 210 mounted on the shaft 162, the arm 200 being longitudinally displaceable relative to the arm holder 210 and also rotatable about its own longitudinal axis and having an article grasp comprising fingers 270, 271 located on one end thereof. A cam 130 is connected to a shaft 108 which is connected to the bars (105) 106, retraction of the ram piston causing the crossed bars 104, 106, (103, 105) to elevate the platform 102, a coil spring 134, which is compressed in the condition of the crossed bars shown in Fig. 2, assisting the said retraction of the piston. The shaft 162 which bears the arm 200 is rotated about its own axis by means of a pair of rams 193, (194), Fig. 3 (not shown), whose pistons are connected respectively to beams 191, (192) to which the ends of chains 185, 186, which pass about sprockets fixed to the shaft 162, are attached. A further ram 230, Fig. 5, is connected by means of an arm 231 to the arm 200 to provide for the reciprocation of the arm 200 along its own axis, rotary movement of the arm 200 about its own axis being achieved by means of a ram (240), Fig. 7 (not shown), which rotates an arm supporting sleeve 218 and which is mounted on the arm holder bracket 212, the piston (245) of the ram (240) having a rack (245a) formed thereon which meshes with a pinion (246)'to drive a gear (247) which meshes with a gear (249) to cause rotation of a worm (250), Fig. 6 (not shown), the worm (250) meshing with a worm-wheel (251) secured to the sleeve 218. The article group which is located at one end of the arm 200 comprises the fingers 270, 271 which are connected by finger members 272, 273 respectively to a member 285 fixed to the arm 200, the finger members 272, 273 being connected by links 274, 275 to a block 284 mounted at one end of a connected rod 288 whose other end is connected to an arm 297 connected to a ram 295, Fig. 5, such that on actuation of the ram 295, the rod 288 is moved longitudinally of the arm 200 to cause the fingers 270, 271 and finger members 272, 273 to rotate about pins 278, 279 mounted on the member 285. The operation of the rams 130, 193, (194), 230, (240) and 295 is controlled by electrical control means in accordance with a prescribed programme.
Patent GB-1088610-A (GB)
Title: Apparatus for storing and displaying heavy rolls of goods
IPC: B65G1/127
Filed: 1965-11-29
Abstract: 1,088,610. Roll display stand. W. SCHNEIDER. Nov. 29, 1965 [June 22, 1965], No. 50534/65. Heading A4T. A roll display stand comprises two uprights each having two sprockets and an endless chain 6 with bores 6a through the link pins 6c whereby a toggle device 9 has a pin 9a inserted through a bore and carries an off-set hook 9f engaging the offset spindle 7a on the core 7 of a heavy roll W on the floor beneath the stand. As the chains rotate, the roll is lifted by a hook 9f at each end. On turning a lever 9g the device 9 is rotated about pin 9a and the hook and spindle 7a move up until a pin 8 can be inserted through another bore and into the hollow spindle 7a to support the roll on the chain.
Patent GB-1495864-A (GB)
Title: Inverse planar transistors
IPC: H01L29/73
Filed: 1975-12-15
Abstract: 1495864 Semi-conductor devices SIEMENS AG 15 Dec 1975 [19 Feb 1975] 51227/75 Heading H1K An inverse planar transistor comprises a semi-conductor body having a P (or N) surface base zone 5, an N (or P) emitter zone consisting of a region 14 adjacent to the base zone 5 and an N (or P) region 3 connected to the surface by an N (or P) zone 4, and a collector formed as a Schottky contact 20 on the surface of the base zone 5. The doping concentration of region 3 increases with increasing distance from the surface, and the doping concentration of the base zone 5 is not greater than 10<SP>17</SP> atoms/cm.<SP>3</SP> in the region of the Schottky contact 20. P (or N) zones 9, 10 may provide an isolating ring round the transistor. An oxidized, diffused, or implanted zone (not shown) may be provided around Schottky contact 20 to reduce edge leakage currents in use of the transistor. A P (or N) injector zone 6, which includes a more highly doped region 8, may serve as an injection zone to control current for the base zone.