baber/WOPTO huggingface dataset:
Patent GB-974673-A (GB)
Title: Fluid control valve
IPC: D21F1/00
Filed: 1962-02-27
Abstract: 974,673. Valves. CRANE CANADA Ltd. Feb. 27; 1962 [Oct. 27, 1961], No. 7643/62. Heading F2V. [Also in Division B8] A parallel slide gate valve is provided with a floating seat 23 located in an annular recess of the valve body, this seat being backed by a resilient sealing ring 27 which urges the seat into sealing engagement with the gate and seals between the seat and body, a plurality of fixed stops 24 on the other side of the gate preventing its deflection out of a central plane. The valve may control a flow of paper pulp stock or pulp mill process fluids, and to this end the gate is provided on the bottom with a bevelled pulp cutting edge 21 and on the sides with cutting notches 22 to maintain the parts clear of obstruction. Downward movement of the gate is limited by a stop 25, and the seat is retained by a stop 32. In removal of the gate for repairs the seat can be lifted out and removed the same way. In a modification, the gate is carried in a wafer type body bolted between pipe flanges.
Patent GB-471929-A (GB)
Title: Improvements relating to grinding mills
IPC: B02C19/00
Filed: 1936-03-13
Abstract: 471,929. Grinding-mills. BORCH, N. S. March 13, 1936, Nos. 7683 and 10163. [Class 59] A process for the dry grinding of granular material comprises acting on the material while it is in a fluid-like state, in which it responds to static pressure and flows in the manner of a liquid, by causing a grinding element immersed in the material to rotate at high speed. As shown in Fig. 1, a disc or plate 6 adjustable in height and driven by a motor 5 rotates within the body of material in a container 1. Compressed air is admitted to the container through a pipe 2 to bring the material into a fluid-like condition. Material leaves continuously through valve 7 and pipe 8 and is carried by an air blast through pipe 9 to a separator S, the coarse material together with fresh feed entering the container through pipes 10, 3. In Fig. 2, two rollers 14, 15 rotate immersed in material in a container 11, the roller 14 being driven by motor 19 and the roller 15 driven by friction and urged into contact with the roller 14 by springs 18. Compressed air enters through pipes 12 and the material is circulated through a separator S. One large roll in contact with several small rolls may be used.
Patent GB-1378105-A (GB)
Title: Production of propylene
IPC: C07C1/00
Filed: 1973-02-16
Abstract: 1378105 Propylene LUMMUS CO 16 Feb 1973 [16 Feb 1972] 7711/73 Heading C5E Propylene is produced by co-currently contacting gaseous propane in a chlorinating zone with a molten mixture of CuCl and CuCl 2  at 700-950 F. such that the spent melt is incapable of effecting further chlorination. The molten mixture may also contain up to 5À5 wt. per cent copper oxychloride in which case the gaseous feed also contains. HCl and the spent melt should be free of copper oxychloride. The gaseous effluent, comprising propylene and propyl chloride, and the spent melt may be passed through a dehydrochlorination zone, optionally in the same reactor as the chlorination zone whereby the propyl chloride is converted to propylene. The melt withdrawn from the dehydrochlorination zone may be 'contacted with O 2  or O 2  and HCl in an oxidation zone to produce a melt containing up to 5À5 wt. per cent CuO.CuCl 2  which is recycled to the chlorination zone. The molten mixture may contain a melting point depressant, e.g. the chlorides of K, Li, Zn, Ag or Tl.
Patent GB-1374929-A (GB)
Title: Grid module in or for a suspended ceiling system
IPC: A47H1/04
Filed: 1973-02-16
Abstract: 1374929 Suspended ceilings BAJER INDUSTRIES Inc 16 Feb 1973 [1 March 1972] 7773/73 Heading E1W A framing member for supporting ceiling tiles, and suitable for various other functions, comprises a generally H-sectioned member 19, preferably extruded, with at least one lower external horizontal flange e.g. 22 for supporting tiles 23, and two pairs of horizontallyaligned upper internal flanges, e.g. 34, 134. An upper channel 49 may be dipped in to carry ducts 48, or a lower trim strip (Fig. 1, not shown) screwed on to carry ducts internally. A rolling partition 54 may be carried by an edge framing member (Fig. 3), or a ventilation duct 92 carried above and a deflector strip 99 below, (Fig. 14). An inverted channel (e.g. (107), Fig. 15, not shown) may be carried below to receive the upper edge of a partition panel (91), and a partition post 83 may carry a spring-loaded plate 71 (Fig. 11) which engages the undersides of four contiguous framing members, which are supported by a spiderconnector 56 from a hanger 64. For Figures see next column
Patent GB-195375-A (GB)
IPC: E02B7/20
Filed: 1923-03-19
Abstract: 195,375. Lawski, L., and Ekwall, A. March 23, 1922, [Convention date]. Lock and dock gates.-In lock gates 2, Fig. 2, of sector-shaped or triangular cross section having hinges at 3, the middle part of the face 4 is set back relatively to the side edges n<1>, n<2>, so as to leave a space between the face 4 and the wall of the gate chamber 5 through which the water can flow while the gate is being opened. The distance n<1> 3 is made greater or smaller than the distance n<2> 3 so that the water pressure may assist the opening or closing. The forms of the gate face and of the wall of the gate chamber are such that the intervening space is increased as the gate is opened, and the rear wall 7 of the gate chamber is flat and approximately at right angles to the length of the lock. The gate is preferably constructed as a framework in which the part 6, Fig. 5, between the upper and lower bearings 3 may be open to facilitate the passage of water and ice.
Patent GB-327547-A (GB)
Title: Improvements in or relating to illuminating apparatus for photographic and other purposes
IPC: G03B15/06
Filed: 1929-03-11
Abstract: 327,547. Boardman, R. V. March 11, 1929. Cabinets. - A cabinet for use as a showcase comprises a framework 1 bearing reflectors 4 adjustably mounted on the sides for example by means of ball and socket joints, and a single source 7 of light, e.g., an arc lamp, suspended from the top of the framework and fitted with adjustable reflectors 6. The lamp may be screened by an opaque or frosted plate 8, and the reflector surfaces may be tinted.
Patent GB-1094182-A (GB)
Title: Fluorination of halogenated organic compounds
Inventor: BENNETT ROYSTON HENRY
IPC: D21H17/56
Filed: 1964-02-26
Abstract: Fluorinated aromatic compounds, preferably containing 3 or more fluorine atoms per benzene ring, are prepared by contacting aromatic halogen containing compounds with a solid mixture of an alkali metal fluoride and a catalytic quantity of at least one fluoride of an element having a valency of from 2 to 6 to substitute fluorine atoms for other halogen atoms directly attached to the aromatic ring.  The fluorides may be used as the ordinary fluoride, e.g. BF3, SnF4, or as a complex, e.g. K2SnF6; NaBF4; KPF6; K2TiF6 or K2SiF6.  The alkali metal fluorides used are Na, K, Li, Rb and Cs fluorides.  The reaction is preferably carried out in the vapour phase in a continuous flow process and any inorganic residues may be reacted with hydrogen fluoride to regenerate the metal fluorides.
Patent GB-996737-A (GB)
Title: Polymerization process and catalyst therefor
IPC: C08F20/44
Filed: 1964-02-26
Abstract: A redox polymerization catalyst comprises a water-soluble peroxide compound and phosphorous acid or a water-soluble phosphite. Peroxide compounds specified are hydrogen peroxide, persulphates, percarbonates and perborates. Phosphites specified are sodium, potassium and ammonium phosphites.  Monomers polymerized in the examples are acrylonitrile, acrylonitrile with methylacrylate, methyl methacrylate or vinyl acetate in aqueous suspension and methyl acrylate in emulsion with sodium lauryl sulphate.  In a comparative example, sodium hypophosphite is used instead of sodium phosphite.ALSO:A catalyst composition comprises a water-soluble peroxidic compound and phosphorous acid or a water-soluble phosphite. Peroxides specified are hydrogen peroxide and alkali metal persulphates, perborates and perphosphates.  The phosphite may be sodium, potassium or ammonium phosphite.
Patent GB-367592-A (GB)
Title: Improvements in or connected with observation instruments of the binocular type having inclined eyepieces
IPC: G02B7/12
Filed: 1931-03-16
Abstract: 367,592. Binoculars. BARR & STROUD, Ltd. and FRENCH, J. W., Caxton Street, Anniesland, Glasgow. March 16, 1931, No. 7978. [Class 97 (i).] In binocular observing intruments wherein the two telescopes &c. can be swung towards or from each other for interocular adjustment, and wherein each telescope comprises a tubular body 2 and an inclined eyepiece A which are rotatable for interocular adjustment only as a whole, provision is made whereby one or each telescope can be rotated for the purpose of adjusting or maintaining the alignment of the inclined eyepieces when the interocular distance is varied. Figs. 1 and 2 show two means for effecting the adjustment by hand. The telescopes 2 are rotatably mounted in housings 3 which can be swung about the pivot 5 for interocular adjustment. The telescopes can be rotated within the housings to maintain the alignment of the eyepieces either by a handle 4, Figs. 1 and 2, or by worm gear 7, 8, 9, Fig. 2. Fig. 3 shows two examples of means for maintaining the alignment automatically. In the left-hand part of the Figure an arm 13 extending from the telescope 2 is pivoted to one end of a link 10 the other end 11 of which is pivoted to the fixed structure 6. The points 5, 11, 12, 14 lie at the corners of a parallelogram, so that the line 14, 12 remains fixed in direction. In the right-hand part of Fig. 3 the link 10 is replaced by a curved slot 15 having its centre at 11, the arm 13 being provided with a roller 12 entering the slot. Graticules &c. may be provided in the field of view. Specifications 360,234 and 360,238 are referred to.
Patent GB-568441-A (GB)
Title: Improvements relating to cinematograph picture bases or films and apparatus for use therewith
IPC: G03D15/00
Filed: 1943-05-20
Abstract: 568,441. Kinematograph apparatus. SHEPPARD, N. F. May 20, 1943, No. 8005. [Class 97 (i)] A cinematograph picture base or film comprises a sheet of flexible material bearing the pictures in parallel rows and formed on opposite edges with tongues e, f, b, h which, when the sheet is bent to a cylindrical form, interengage to maintain the edges in such relative position that the ends of the picture rows join to form a continuous helical picture sequence, which may be viewed directly or by projection, and be given continuous or intermittent motion. Fig. 5 shows a rigid, transparent cylindrical holder b for mounting in a rotary picture-scanning apparatus, a picture base a bent to cylindrical form fitting closely inside it. Coacting locating parts, such as a hole j in the picture base engaged by a lug k on the cylinder, together with devices such as springs for maintaining the base in uniform contact with the interior of the cylinder, may be provided.
Patent GB-976591-A (GB)
Title: Two-speed gear hub
IPC: B62M11/14
Filed: 1962-03-01
Abstract: 976,591. Change-speed gear. FICHTEL & SACHS A.G. March 1, 1962 [March 11, 1961], No. 8012/62. Heading F2D. [Also in Division B7] In a combined twospeed gear and brake hub for a bicycle of the kind wherein a simple sunring train with permanently fixed sun 24 provides over - and direct - drive by selectively clutching an input sprocket hub 4 to the planet carrier 19 or ring gear 21, which latter drives a wheel hub 7 through a ratchet clutch 31 and the formar is helically splined to a brake cone 25 which moves axially to engage a brake 26 on back-pedalling, a second ratchet clutch 30 is provided between the brake cone 25 and wheel hub 7 and a lost motion coupling 29 is provided between the ring gear 21 and first ratchet clutch 31 so that if the bicycle is wheeled backwards after braking the pawls of the second ratchet 30 are picked up by the ratchet teeth 33 and disengage the brake prior to reverse rotation of the gear. The angular lost motion of the coupling 29 is greater than the angle between the teeth of the ratchet 30.
Patent GB-862391-A (GB)
Title: A process for the production of dimethyl terephthalate by catalytic oxidation of p-xylene and an apparatus for carrying out the process
IPC: C07C51/265
Filed: 1957-03-12
Abstract: Dimethyl terephthalate is obtained by a process which comprises simultaneously oxidising by means of oxygen in the presence of oxidation catalyst, a mixture of p-xylene and methyl p-toluate to form a mixture of p-toluic acid and monomethyl terephthalate, esterifying the oxidation product with methanol, preferably in the presence of an esterification catalyst, thereby forming a mixture of methyl p-toluate and dimethyl terephthalate from which the dimethyl terephthalate crystallises, separating this from the esterification mixture, distilling off the methanol from the remaining solution, and returning the residue consisting mainly of methyl p-toluate to the oxidation stage, if necessary after washing it free from the esterification catalyst.  The process may be carried out in apparatus comprising essentially an oxidation boiler, which may be provided with a stirrer, an esterification boiler with column and cooler, a crystallizer, a centrifuge, a washer, and a vacuum distilling apparatus with column and cooler for purifying the dimethyl terephthalate, and means for recycling methyl p-toluate to the oxidation boiler.  The oxidation may be carried out at 160-200 DEG C. The mixture which is treated may contain 25-50% of p-xylene and 75-50% of methyl p-toluate.  In an example, cobalt naphthenate is used as oxidation catalyst and sulphuric acid is used as esterification catalyst.  The process is preferably conducted so that the methyl p-toluate obtained at the end of the operation is at least as much or a little more than that which was added at the beginning. Reference has been directed by the Comptroller to Specification 809,730.
Patent GB-1204789-A (GB)
Title: Storage battery
IPC: H01M10/50
Filed: 1968-02-19
Abstract: 1,204,789. Laminates. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 19 Feb., 1968, No. 8079/68. Heading B5N. [Also in Divisions D1, H1 and H5] An immersion heater (Fig. 6, not shown) is made by forming a layer of unsaturated polyester resin on the surface of each of two glass plates treated with a release agent, spraying the surfaces of the resinous layers with styrene to remove bubbles and allowing the layers to gel. Styrene is then applied to a heating cloth comprising a heating wire woven together with synthetic fibre warps and wefts, and held between two sheets of PVC with their edges attached to one another. The heating cloth is then placed on one of the gelled polyester layers. A small amount of the polyester is applied to the cloth followed by styrene. The second glass plate is then placed with its gelled polyester layer in contact with the heating cloth and the stack is left under 1 kg./om.<SP>2</SP> until the resin has gelled when the stack is heated to 60-80 C. After cooling the glass plates are removed from the hardened laminated heater. Another heater which is transparent is similarly made except that the heater cloth is made from glass-fibre yarns and the PVC sheets are omitted. Spaced parallel spacer strips may be formed on the surface of the heater (Figs. 10 and 11, not shown). The heating wire may be of stainless steel, a carbon fibre or a yarn having carbon on its surface.
Patent GB-1157748-A (GB)
Title: Process for the Electrical Upsetting of preferably Rod-shaped Blanks and Apparatus for Carrying out the Process
IPC: B21J9/08
Filed: 1967-02-21
Abstract: 1,157,748. Upsetting. MASCHINENFABRIK HASENCLEVER A.G. 21 Feb., 1967 [23 Feb., 1966], No. 8108/67. Heading B3H. A workpiece 19 is electrically upset between spaced electrodes 9, 21 within a die 2 having an inner sleeve 6 which is initially held stationary and is then released so as to retract with the electrode 9. This enables upsets 19a, 19b of different diameters to be formed on a rod of round, oval, triangular or flat cross-section or on a tube. Upsetting pressure is applied by an hydraulic ram 20 and the retraction of the anvil electrode 9 is controlled by a piston 10 in a fluid cylinder. The die 2 is fixed by a plate 3, Fig. 5, within a die holder 1 having cooling ribs 1a around which a coolant is circulated through nipples 1b, 1c. Inner sleeve 6 is screwed at 8 to a tubular extension 7 having a longitudinal slot 12 and a threaded sleeve 7c. A lever 23 pivoted at 24 has a projection 25 engageable with a surface 7b on the extension 7. The anvil electrode 9 with a replaceable tip 9a passes through the parts 6, 7 and has a stop 11a adapted to cooperate with a cam surface 26 on the lever 23. During upsetting of the part 19a, Fig. 4, the inner sleeve is held stationary by lever 23 until the stop 11a on the retracting anvil electrode 9, engages cam surface 26 to withdraw the lever. Stop 11a then engages sleeve 7c whereby the inner sleeve 6 is retracted with the anvil electrode 9. This causes the enlarged diameter part 19b to be upset. Withdrawal of lever 23 also moves a spring-loaded rod 27 which actuates a switch 28 to control the speed of retraction of the anvil electrode 9 and/or the upsetting pressure and/or the heating current. A hand lever 35 is used for withdrawing the rod 27 to facilitate changing the die 2. In another embodiment, Fig. 1 (not shown), the anvil electrode 9 has a stop in the form of a radial pin (11) which engages a spring-loaded plunger (14) to release the inner sleeve 6. The die may have a number of inner sleeves which are arranged telescopically and released successively.
Patent GB-455759-A (GB)
Title: Swivel chair mounting
IPC: A47C3/24
Filed: 1936-03-18
Abstract: 455,759. Swivel chairs. HEROLD, W. F., 68, Brooklawn Place, and BASSICK CO., 38, Austin Street, both in Bridgeport, Connecticut, U.S.A. March 18, 1936, No. 8120. [Class 52 (ii)] Spider arms 10 fixed to the under side of the seat carry a vertical thrust pivot 20 and an annular side thrust bearing 17 into which takes a fixed tubular post 25 projecting upwardly from the chair base 23 and having slidable within it a vertically adjustable member 37 with bearing means 44 engaging the vertical thrust pivot, the member 37 being adjusted by turning a screw 31 by a hand-wheel 34 beneath the base. The side thrust bearing 17 is integral with the seat supporting bracket 11 and has a bearing ring 22 engaging the post 25 and a central thrust bearing stud 20 resting in a spherical recess in the bearing 44 fixed at the upper end of the vertically adjustable member 37, on which the swivel seat is retained by a set-screw 47. A nut 38 at the lower end of the member 37 engages the vertical screw 31 and a split friction ring 43 prevents rotation of the member 37 while permitting vertical adjustment.
Patent GB-1072608-A (GB)
Title: Mechanism for mechanical grounding of surfaces of large parts
Inventor: LUCAS LOTHAR
IPC: B24B47/04
Filed: 1966-02-24
Abstract: 1,072,608. Grinding. KAROSSERIEWERKE MEERANE VEB. Feb. 24, 1966, No. 8173/66. Heading B3D. The large surface area of, for example, a vehicle superstructure is treated by a grinding body 9 driven through coupling rods 6, 8 by cranks 1, 7 which are rotated at different speeds and so mounted in relation to one another that the coupling rods converge approximately at right-angles. The machine may be automatically brought into operation in vehicle assembly lines and the grinding body pressed into engagement by springs or compressed air cylinders. For treating larger areas, one of the rods (6, Fig. 2) is driven by planetary gearing, the secondary crank (2) of which is driven by a V-belt (5) which rolls on a stationary pulley (4). In a modification (Fig. 3), three cranks rotating at different speeds and operating three coupling rods (6, 8a, 8b) drive a pair of grinding bodies (9a, 9b) mounted one each end of a carrier rod (10), the coupling rods (8a, 8b) being arranged in tandem and approximately at right-angles to the other coupling rod (6) which is pivoted at the centre of the carrier rod (10).
Patent GB-509440-A (GB)
Title: Improved apparatus for use in the display of goods
IPC: A47F3/08
Filed: 1938-03-17
Abstract: 509,440. Displaying; garment-hangers. SHIPWAY, S. P, March 17, 1938, Nos. 8300 and 21469. [Class 3 (i)] [Also in Group XIV] A series of articles, such as dresses, are moved in a continuous path through a viewing position, the path being curved at that position to display all sides of the articles. Fig. 4 shows in plan view a rail 7 along which ride runners 17 from which may be suspended garment hangers 11 having cross-arms 13. The rail 7 falls from a point C along the rear storage part of the track to a point A, from which it either gradually rises to the point C or lies horizontal to the point B and then rises to C. Runners after passing C ride down the track by gravity to accumulate behind a stop and feed device 21 near the point A. The device 21 consists of a rotating disc slotted at 67 with a shoulder 68 against which an upstanding pin on the runner abuts. The turning of the disc 21 moves the foremost runner along the rail until its pin is caught by the first of a series of rotating fingers 66 and pushed further along the rail 7 till the next finger contacts and continues its progress. The fingers 66 are mounted on spindles geared together so that all rotate in clockwise direction with the exception of those on spindles 33 and 39 located outside the rail 7 at the re-entrant heights, and they are arranged at different heights to clear one another. A motor drives by a worm the main spindle 30, preferably through a slipping clutch, and a detachable connection is provided on the spindle 33 to allow of inspection and correction of the motor and gearing up to that spindle. The disc 21 is also driven by the gear train, but at a speed slow enough to permit one article only passing through the viewing position at a time. This disc may be substituted by a detent tripped electrically or otherwise when a previously displayed article passes a given point. Each hanger has its cross-arm secured in a slotted block 12 by a screwed depending rod 14 which may be weighted at the bottom. Lamps may be disposed above the display position, and the device, enclosed by a decorative cover 73, may be mounted on an adjustable pillar 72.
Patent GB-413437-A (GB)
Title: Improvements in or relating to covers or protectors for sparking plugs of internal combustion engines
IPC: H01T13/06
Filed: 1933-04-07
Abstract: 413,437. Sparking - plugs ; binding - posts. HICKEN, A. F., 7, Tower Road, Aston, Birmingham. April 7, 1933, No. 8323. [Class 7 (iv).] A protective cover for sparking-plugs 1 is made in two parts between which the lead d is clamped. A transverse opening 4 forms a seating for the lead, watertightness being secured by an interengaging rib and recess 7, 8, the rib being deeper than the recess. The upper part 5 has a metal bush 6 moulded within it for engaging the plug electrode, and a spring washer beneath the shoulder 2 serves to lock the part 5 against unscrewing.