baber/WOPTO huggingface dataset:
Patent GB-334792-A (GB)
Title: An improved plant or installation for extracting dust from minerals such as coal
IPC: B07B4/04
Filed: 1929-11-21
Abstract: 334,792. Hunter, S. Nov. 21, 1929. Pneumatic separating.-In apparatus for extracting dust from.minerals such as coal, of the type in which the material is subjected to a cross current of air as it passes down an inclined shoot 2 the bottom of which is formed of adjustable louvres 3, some or all of the louvres are replaced by driven rollers 4, which preferably coact with scrapers 12 to remove dust with a tendency to adhere owing to dampness. The upper part of the shoot is preferably provided with a number of baffle plates 13 arranged in break-joint order to distribute the charge uniformly. Weighted doors 19 may be provided at the top and bottom of the shoot to permit the feeding and discharge of the materials. The expansion chamber 7 into which the dust is carried may be fitted with fixed or hinged baffles 8, 9. In order to distribute the air evenly and smooth the flow, the passage 6 between the fan 5 and the shoot is formed in two sections 14, 15. The section 14 is of uniform depth, has disverging sides, and is subdivided by laterally diverging vertical partitions. The section 15 is of uniform width, has diverging upper and lower walls, and is subdivided by vertically diverging walls 17, which may be provided with adjustable pivoted lips 18. The air circuit may be closed and may include a cyclone or other additional separator for grading the dust.
Patent GB-324174-A (GB)
Title: Improvements in means for securing roofing slates
IPC: E04D1/34
Filed: 1928-12-04
Abstract: 324,174. Gay, G. Dec. 4, 1928. Roofs, slating. - Slates are secured by a U-shaped wire clip 1 fastened to the slate by a metal strip 8 which is inserted through a slot in the slate. The prongs 4, 5 of the clip are bent out and down. The slate with the clip already attached to the underside is pushed up and over the batten and the prongs dig into the batten face and prevent downward movement.
Patent GB-469550-A (GB)
Title: Improved method of and apparatus for producing ammunition shell and like cases
IPC: B21C23/14
Filed: 1935-12-27
Abstract: 469,550. Forging and squirting cases for shells. STEWART & CO., Ltd., D., and CROSBIE, J. B. TALBOT-. Dec. 27, 1935, Nos. 35790, 35791, and 35792. [Classes 83 (ii) and 83 (iv)] Billet - piercing ; ,forging - dies.-A hollow case or vessel, such as an ammunition shell case, is formed in a continuous operation consisting in first forming a case having an imperforate end by a forging process, and then completing the operation by an extrusion process. A billet b is supported, resting on an annular die 10, in a container 11, the lower end of the die being closed by a member 13. A plunger 26 carrying a punch 25 descends to force the lower part of the billet into the die 10 and to form a central recess therein by means of the punch 25. The member 13 is then removed and the billet extruded through the die 10, Fig. 5, upon further downward movement of the plunger 26, to produce the case b<1>. The member 13, Fig. 1, may be removed by sliding its supporting bolster 14 laterally to bring a slot 18 therein beneath the member 13. Alternatively, the lower end of the member 13, Fig. 3, rests on a thin plate 20 which is sheared by the edge 13<11> of the member 13 when a predetermined pressure is exceeded. In a further modification, the plug 13 is supported by a plunger of a fluid-pressure-operated ram, which yields at a predetermined pressure. Alternatively, a mechanically operated plunger or a lever system may be operated to release the plug 13 when the fluid-pressure within a cylinder supporting the plug or that operating the punch 26 is observed to exceed a predetermined value. In a mechanical press, the plug may be released when the press head reaches a given point in its operative stroke, or the release may be initiated by the engagement of electric contacts or by collapse of a spring.
Patent GB-1166806-A (GB)
Title: Self-Propelled Combine Harvester
IPC: A01D41/12
Filed: 1968-07-26
Abstract: 1,166,806. Vehicle cabs. GEBR. CLAAS. 26 July, 1968 [16 March, 1968], No. 35842/68. Heading B7B. [Also in Division A1] ] The driver's stand of a self-propelled combine harvester is provided with a safety frame comprising a frame 4 transparently panelled, and a detachable cab top unit 5, which may be hung below a straw ejecting bonnet (6), Fig. 2 (not shown) during transport of the harvester.
Patent GB-1302667-A (GB)
IPC: C21D9/00
Filed: 1971-07-30
Abstract: 1302667 Discharging continuous furnaces MIDLAND-ROSS CORP 30 July 1971 [17 Dec 1970] 35931/71 Heading F4B Internal discharge mechanism in a continuous furnace of the walking beam type comprises a pair of sloping rails 52 supported by posts 56 reciprocable vertically within a frame 58 to lift billets 33 into alignment with a ramp 46 whereupon they slide down over a curved member 48 on to a flat receiving area. The posts 56 are operated by a motor 60 with a variable control 61 through reduction gearing 62 and a chain and sprocket drive 64-80. The furnace conveyer comprises fixed rails 28 and movable rails 34 on a carriage 38 oscillated by an eccentric 40. It is heated by upper burners 42 and lower burners 46 and has a front flue 26.
Patent GB-1284122-A (GB)
Title: A process for the production of benzodiazepine derivatives
IPC: C07D243/30
Filed: 1969-07-17
Abstract: 1284122 Benzodiazepines TAKEDA YAKU. HIN KOGYA KK 17 July 1969 [17 July 1968] 36031/69 Heading C2C Compounds of the general formula (R 1 =H, halogen, NO 2 , CF 3 , alkyl; R 3 =H, COOH, COOalkyl, CONH 2 , substituted carbamoyl, or aryl, aralkyl or alkyl optionally substituted by one or more alkoxy, alkylthio, mono- or disubstituted amino or heterocyclic groups: 5-phenyl group optionally substituted by one or more halogen atoms, NO 2 , CF 3  or alkyl groups) are prepared by reacting a compound of the formula with a salt of R 3 CH(NH 2 )COOR 4  (R 4  = hydrocarbon residue) in the presence of an organic base. Reference has been directed by the Comptroller to Specification 972,968.
Patent GB-402941-A (GB)
Title: Improvements in or relating to means for actuating servo-operating controlling surfaces for aircraft and the like
IPC: B64C13/02
Filed: 1932-12-22
Abstract: 402,941. Controlling aircraft. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, WILLIAMS, D. L. H., Hillside, Swakeley's Road, Ickenham, and ORDIDGE, F. H., Soircroft, Croft Gardens, Ruislip, all in Middlesex. Dec. 22, 1932, No. 36329. [Class 4.] A small amount of free lost motion is provided between the means for directly actuating an aircraft control surface and the means for actuating a servo flap thereon. A lever c connected by a link e to the pilot's control and by a link f to a servo-flap g has also telescopic connections h, j to arms k on the main control surface. The connections h, j may be replaced by short chains, or there may be an angular gap between the lever c and abutments on the control surface. Alternatively the lever c may have a pin and slot connection to an arm on one side of the pivot axis of the control surface.
Patent GB-767874-A (GB)
Title: Improvements in or relating to hydraulic accumulators
IPC: F15B1/10
Filed: 1954-12-17
Abstract: 767,874. Hydraulic accumulators. SOC. D'INVENTIONS AERONAUTIQUES ET MECANIQUES S.I.A.M. Dec. 17, 1954 [Dec. 18, 1953], No. 36641/54. Class 69 (2). An hydraulic accumulator comprises an outer casing 1 closed by a cover 4 and divided into two chambers 7, 8 by a bell-like partition 2 of porous sintered metal. An elastic diaphragm 3 secured at its edge abuts one side of the partition 2. The chamber 7 communicates with pressure air and the chamber 8 communicates with the working oil. A small quantity of oil 11 which may be varied may be present in the bottom of the air chamber, the variation of the quantity of oil 11 varying the air pressure resulting from an introduction of a given quantity of oil into the chamber 8.
Patent GB-852963-A (GB)
Title: Photoconductive lead oxide film and method of making it
IPC: H01L21/00
Filed: 1957-11-25
Abstract: 852,963. Semi-conductor devices. GENERAL ELECTRIC CO. Nov. 25, 1957 [Feb. 26, 1957], No. 36650/57. Class 37 A method of making a photo-conductive layer comprises forming on a base a film of lead oxides and then heating the film to between 500 and 800‹C. in the presence of oxygen to convert it into orthorhombic lead oxide. In one embodiment a film of lead oxide 500Á thick is evaporated on to an aluminium base plate held at 350‹C. in dry oxygen at a pressure of 5 microns of mercury. The film is then heated in air for two hours at a temperature of 600‹C. and afterwards cooled fairly rapidly to prevent partial reconversion of the film to red lead. A film formed in this way is suitable for use in an X-ray camera tube. For use with visible light a film 5-10Á thick is used. The graininess of the converted lead oxide film increases with the temperature of the heat treatment and with the partial pressure of oxygen during the treatment. The base plate may be formed of iron, stainless steel or ceramic material instead of aluminium.
Patent GB-1064478-A (GB)
Title: Polymerization of epoxide compounds
IPC: C08G65/26
Filed: 1963-09-18
Abstract: A catalyst for polymerizing aliphatic vicinal epoxides (see Division C3) comprises the neutralized reaction product of pyrophosphoric acid and a halide of boron, aluminium, gallium, indium or thallium.  In Example 1, pyrophosphoric acid was added to aqueous aluminium chloride and neutralized with ethylene oxide.  The resultant gel was extracted with propanol-2, dried to a free-flowing powder and actuated in two ways:-(A) by heating at 100 DEG  C. and 1.0 mm. for 16 hours; (B) by heating at 600 DEG  C. for 96 hours with an air purge followed by heating at 100 DEG  C. and 1.0 mm. pressure for 16 hours.  An inactive aluminium pyrophosphate is prepared in Example 5 by rapidly adding a warm solution of tetra-sodium pyrophosphate decahydrate to a stirred solution of aluminium hexahydrate.  The resultant precipitate was washed with water, extracted with isopropyl alcohol, dried to a free flowing powder and calcined at 550-600 DEG C. for 48 hours.ALSO:A process for the production of solid polymers comprises contacting epoxide of formula <FORM:1064478/C3/1> wherein each R1 is H or a C1- 18 aliphatic hydrocarbon radical, with a catalytic amount of the neutralized reaction product of pyrophosphoric acid and a halide of boron, aluminium, gallium, indium or thorium as catalyst, at 20 DEG  to 150 DEG  C. Preferred epoxides contain 2 to 6 carbon atoms. The preferred metal halide is aluminium chloride hexahydrate and the preferred neutralizing agent is ethylene oxide, in which case the ethylene chlorohydrin formed is extracted, e.g. with propanol-2.  The examples describe the polymerization of propylene oxide giving solids of molecular weights 394,000 and 491,000 respectively and of ethylene oxide.  Uses:  Preparing moulded articles, films, fibres and coating applications.ALSO:A catalyst of polymerising aliphatic vicinal epoxides (see Division C3) comprises the neutralised reaction product of pyrophosphoric acid and a halide of boron, aluminium, gallium, indium or thallium.  In example 1, a catalyst is prepared by adding pyrophosphoric acid to aqueous aluminium chloride and neutralizing the product with ethylene oxide, which then is extracted with isopropanol, dried to a free-flowing powder and actuated by calcining.
Patent GB-1006756-A (GB)
Title: Electron multiplier
IPC: H01J43/24
Filed: 1963-09-18
Abstract: 1,006,756. Electron multipliers; image converter tubes. BENDIX CORPORATION. Sept. 18, 1963 [Sept. 19, 1962], No. 36786/63. Heading H1D. An electron multiplier of the kind described in Specification 950,640 comprises an elongated, secondary-emissive channel which is at least partly conical. As shown, an image intensifier comprises a photo-cathode 35, an array of conical tubes 21 having resistive, secondary-emissive surfaces 22, and a phosphor screen 36. The tubes 21 may be of glass having a high lead content, the surfaces 22 being formed by reduction in hydrogen, and the tubes being fused together as described in Specifications 954,248, 971,733 and 965,044. A potential difference is applied between conductive coatings 33a, 34a on the ends of the tubes which may lie in planar or spherical surfaces. The positions of the photocathode and phosphor screen may be reversed for image magnification. Alternatively, the secondary-emissive surfaces may be partly conical and partly cylindrical as in Fig. 4, or partly convergent and partly divergent as shown in Fig. 6.
Patent GB-932463-A (GB)
Title: Improvements in or relating to nuclear fuel elements
Inventor: WAINE PETER
IPC: G21C3/32
Filed: 1960-10-27
Abstract: 932,463. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 11, 1961 [Oct. 27, 1960], No. 36926/60. Class 39 (4). A rod cluster fuel assembly has bow restraint means comprising an openwork structure formed by a plurality of thin-walled members disposed edge-on to the coolant flow and embracing the fuel rods with clearance over an intermediate portion of their length. In one embodiment (Fig. 3), bowing of the fuel rods is held within limits by an openwork structure 15 of stainless steel formed by thin-walled (0.02 inch) tubular members 16 interconnected by thin-walled (0.02 inch) members 17 of web form. Flanged webs 18 connect the outer members 16 with a U-sectipn, annular support 19 (0.016 inch thickness) disposed between upper and lower graphite sleeves 28 inside a tubular housing 3 of graphite. Alternatively (Fig. 6a), the openwork structure 15 is fabricated from thin strips 5b with transverse troughs 6b and secured together remote from the openings 8b by resistance welds 7b. The strips 5b are of the same depth (0.5 inch) as the members 16, 17 of the first embodiment. In both embodiments, heat-insulating plugs 33 of sintered alumina are disposed within the fuel rods opposite the openwork structure 15.
Patent GB-326765-A (GB)
Title: Improvements in gramophone records and the method of manufacture
Filed: 1928-12-14
Abstract: 326,765. Thornton. J. E. Dec. 14, 1928. Compound sheet materials.-Gramophone records are made of preformed sheets of regenerated cellulose, produced by precipitating the cellulose from viscose, i.e. a solution of cellulose xanthate, the sound-grooves being impressed in the usual manner, in one or both faces of the cellulose, preferably by using heated dies. When two or more sheets are used, they are cemented together before the grooves are impressed. Fillers such as barytes, pigments, or substances such as gums or resins may be incorporated with the cellulose. The material may be chemically hardened-superficially or throughout its mass by treatment with an agent such as formalin or alum. Flexing agents such as oils, glycerine, or sugars, may also be used. A multi-layer disc may be formed with the two outer sheets slightly larger than the interior, the two overhanging portions being turned over and cemented together to form a rounded edge.
Patent GB-1068417-A (GB)
Title: Removable line shield or guard ring for spinning reel spools and spinning reels containing same
IPC: A01K89/01
Filed: 1964-09-09
Abstract: 1,068,417. Fishing reels. SHAKESPEARE CO. Sept. 9, 1964 [March 5, 1964], No. 36934/64. Heading A1A. A fishing reel in which a line is wound on a spool 10 by means of a pick-up device 26 which is movable axially with a shaft 12 by operation of a push-button lever 42 is characterized by a flange 60 detachably connected to the forward edge of the spool. The flange is made from a plastics material and can be a press fit on the spool edge or may be secured by a bayonet fitting, screw threads or a pin and keyhole slot arrangement. The shaft 12 is retained in operative axial positions by a spring 20 engaging in recesses associated with cam surfaces 21, 23. The spool is detachable from its support 9 by movement of a spring 56 which normally engages a retaining slot 59.
Patent GB-875038-A (GB)
Title: Improvements in or relating to coating devices
Inventor: GOTTLIEB LOOSER
IPC: B29C48/21
Filed: 1958-11-18
Abstract: 875,038. Laminates and laminating. OERLIKON MACHINE-TOOL WORKS ADMINISTRATION CO. Nov. 18,1958 [Nov. 18, 1957], No. 37062/58. Class 140. [Also in Group V] In apparatus for laminating extruded synthetic resin material such as polythene to webs of paper, metal foil, or other synthetic resin foils, the extrusion head 1 is connected to a feed screw 2 suspended vertically or substantially vertically, on rails 9 or slides whereby the whole extrusion apparatus can be moved laterally, for example by an electric motor 12 or by a screw, from above the laminating rolls 6, 7. The feed screw 2 has a length-diameter ratio of about 18: 1 and is driven by variable-speed gearing in a housing 4; the extrudate, introduced into a hopper, not shown, in granular or other form, is heated electrically by coils 3 and gases are drawn off through a cowl 11. The web 5 is supplied by rollers including a heated roller 8, and passes between the nip of rollers 6, 7 to which the extrudate 14 is supplied. The nozzle 1 is tapered to bring it close to the rollers and is adjustable in width and thickness. The roller 7 is of chromium-plated steel and contains cooling means; the roller 6 is of resilient material and is pressed against roller 7 by a compressed-air cylinder 15 acting on an arm 16 on which the roller is mounted. Specification 855,437 is referred to.
Patent GB-323106-A (GB)
Title: Improvements in and relating to petrol tanks and the like
IPC: B60K15/03
Filed: 1928-12-15
Abstract: 323,106. Morris Commercial Cars, Ltd., Hamill, W. W., and Rose, P. G. Dec. 15, 1928. Tanks.-Two shell-like elements b, preferably formed by pressing from light sheet metal, are secured to a comparatively rigid foundation plate a which may be attached to a suitable support.
Patent GB-1069489-A (GB)
Title: Preparation of 1,10-phenanthrolines
IPC: C07D471/04
Filed: 1964-09-10
Abstract: Alkyl substituted 1,10-phenanthrolines having the formula <FORM:1069489/C2/1> in which X is hydrogen, methyl or ethyl are obtained by heating at a temperature up to 100 DEG  C. in the presence of an acidic catalyst an 8-aminoquinoline of formula <FORM:1069489/C2/2> or a salt thereof, with methyl isopropenyl ketone, or a compound which generates the ketone under the reaction conditions, to give a mixture of the desired compound and the correspondingly substituted 1,2,3,4-tetrahydro-1,10-phenanthroline of formula <FORM:1069489/C2/3> converting this latter compound to the required 1,10-phenanthroline by heating at a temperature of 110-130 DEG  C. in the presence of arsenic acid and hydrochloric or hydrobromic acid and recovering the alkyl-substituted 1,10-phenanthroline from the mixture.  The process may be carried out with or without separating the 1,10-phenanthroline after the first stage.
Patent GB-432518-A (GB)
Title: Improvements in or relating to fuel-injection apparatus for internal combustion engines
IPC: F02M61/10
Filed: 1934-12-28
Abstract: 432,518. Supplying liquid fuel. KOCKUMS MEKANISKA VERKSTADS AKTIEBOLAG, Malm÷, Sweden. Dec. 28, 1934, No. 37182. Convention date, June 7. [Class 7 (iii)] [See also Group XXVIII] To prevent dribbling from the fuel nozzle, the piston of a high pressure pump which is operated by an elastic fluid moves the injection valve into its closed position during the injection stroke through the agency of cushioning- means interposed between the piston and the valve. The cushioning-means may comprise either a spring or a fluid medium. As shown in Fig. 1, fuel is supplied by a low-pressure pump through a pipe 5, past a non-return valve 6, into a pump chamber 7, and is forced by a differential piston 1, 2 past the fuel valve 11 and through bores 13 into the cylinder. A fuel accumulator is arranged in the pipe 5 and is formed by a spring-pressed piston 67 operating in a cylinder 66 provided with a port 28 which is uncovered if the pressure in the pipe 5 is excessive. The piston 1, 2 is driven by compressed air or gas which enters the casing 301 through an inlet 30<11> and is admitted to the cylinder by a mechanicallyoperated valve 8, which first closes an outlet 91 in a valve 9 and then opens the valve 9. The upward pressure of the gas in the cylinder 10 on the valves 8, 9 is balanced by the downward pressure of the gas on a piston 29 mounted in the casing 301 and connected to the cylinder 10 by a passage 31. After a spring 14 carried by the piston 2 contacts with a flange 15 on the valve 11, further movement of the piston forces the valve on to a seat 16 and terminates the injection. When the spring 41 raises the valve 8 to open the outlet 9<1> the compressed gas in the cylinder 10 escapes through an opening 30<111>. In a modified construction, Fig. 2, the injection valve 3 carries a piston 22 which is exposed on its upper side to the pressure in the pipe 5, and on the lower side to the pressure in the pump chamber 7. The valve opens by fluid pressure pressing the piston 22 against a spindle 23, and is closed when a spring-pressed abutment 24 on the piston 2 contacts with the spindle 23. The pump is driven by gases taken from the working cylinder through pipes 25, 32 the total volume of which is at least as great as the maximum volume swept out by the piston 1 during its stroke. A vacuum relief valve 26 is included in the pipe 25. In a further modification, the movement of the piston 1, 2 is transmitted to the piston 22 of the injection valve 3 through a column of fuel, and the increase in pressure, when the piston covers an escape port, closes the valve.
Patent GB-522826-A (GB)
Title: Improvements in or relating to automatic photographic film winding mechanism
IPC: G03B27/58
Filed: 1938-12-22
Abstract: 522,826. Winding photographic films; photographic copying - apparatus. KODAK, Ltd. Dec. 22, 1938, No. 37276. Convention date, Dec. 24, 1937. [Class 98 (i)] An automatic film-winding mechanism comprises a winding-shaft driven by means which automatically stops when a predetermined length of film has been wound, together with a main winding means for normal operation which is disconnected from the winding-shaft during operation of the first driving-means. The invention is described as applied to an automatic copying apparatus comprising a cabinet (not shown) containing a support 16, 17 with a depending bracket 15 to which the camera is removably attached, in which position the camera film advancing roll is engaged and driven by the end of a shaft 19 normally rotated by a sprocket 22 through a one-way clutch 23, and the take-up spool is driven by a shaft 30 rotated from the shaft 19 by gears 28, 29. In order that the image-bearing part of the film may not be exposed to light before the camera is placed in, and after it is removed from, the cabinet, lengths of film are automatically wound on to the take-up roll after insertion and before removal of the camera by a second driving means which operates a stop device after winding predetermined lengths. The means comprise a motor 34 which drives the shaft 19 through a worm and wheel drive 36, 37. The motor circuit is controlled by two switches 46, 47 arranged in parallel, each having a breaker arm 50 carrying a block 51 adapted to be engaged by cams 72, 73 on gears 62, 66 respectively. The gear 62 is in mesh with a gear 58 on the shaft 19, and itself drives the gear 66 through a gear 65. When the camera has been inserted in the cabinet, the closure of the lid depresses a two-way switch in series with the switches 46, 47, thereby completing a circuit through the switch 47. The motor 34 thereupon operates the driving shaft 19 to wind off film until the gear 62 has made nearly a complete revolution, when the cam 72 opens the switch 47 and stops the drive. After completion of the copying, during which the shaft 19 is driven by means of the sprocket 22, the lid of the cabinet on being opened for removal of the camera reverses the two-way switch, which thus completes a circuit through the switch 46. The motor 34 therefore again operates to wind off a length of film until the cam 73 on the gear 66 opens the switch 46. U.S.A. Specification 1,966,348 is referred to.