baber/WOPTO huggingface dataset:
Patent GB-849041-A (GB)
Title: Oxidation of organic compounds
Inventor: BENSON RICHARD WILLIAM HAROLD
IPC: C07C51/265
Filed: 1958-04-03
Abstract: In a process for the production of aromatic carboxylic acids by the oxidation, with molecular oxygen, of aromatic compounds having p  at least one nuclear aliphatic substituent in a monocarboxylic acid and in the presence of catalytic metal-ions of variable valency and of bromide ions, the reaction is carried out in a vessel composed of, or lined with, nickel-chromium austenitic steel, and the ratio of total metal-ions to bromide-ions in the reaction-mixture is so adjusted as to reduce corrosion in that part of the vessel containing the liquid phase to less than 0,2mm./year and in that part of the vessel above the liquid phase to less than 0,1mm./year.  The preferred catalytic metals are cobalt and manganese, which are used in the form of their bromides or acetates.  To provide the desired total metalion to bromide-ion ratio, in cases where the catalytic metal-ions are present in the reaction mixture in insufficient amounts, there may be added salts of sodium, potassium or zinc, e.g., the acetates or benzoates.  In an example, air is passed through a mixture of p-xylene, glacial acetic acid, manganese bromide tetrahydrate and cobalt acetate tetrahydrate, which is heated to 215 DEG  C. in a reactor made from 18/10/Mo/Ti austenitic stainless steel.  The ratio of cobalt acetate tetrahydrate to manganese bromide tetrahydrate was 35 : 2.  The product-liquors contained only 60 p.p.m. iron, and an 88% yield of terephthalic acid was obtained. Corrosion samples showed a penetration of less than the limits specified above.  Specification 807,091 is referred to.
Patent GB-786017-A (GB)
Title: Improvements in or relating to grinding mills
IPC: B02C7/17
Filed: 1956-04-10
Abstract: 786,017. Disc mills. EDWARDS, G. W., and SEVIN, R. April 10, 1956 [April 20, 1955], No. 10909/56. Class 59 . A grinding mill comprising co-operating grinding discs at least one of which is rotatable at high speed and means whereby the treated product issuing from the grinding discs may be subjected to a flow of air or gaseous cooling medium, is characterized in that the air or gaseous medium is circulated in a closed circuit which incorporates cooling means whereby volatile constituents which are evaporated from the product under treatment in the grinding zone may be condensed, there being means whereby condensate thus obtained may be returned to the feed side of the mill or collected at some other point. The mill shown comprises rotary and stationery grinding discs 7, 11, the material to be ground, which may contain a volatile liquid, being drawn into the grinding chamber from a hopper 13 by means of vanes 9<SP>1</SP> on a nut 9, and air or vapour drawn from a secondary chamber 15 by means of vanes 17 so-as to pass over the material issuing - from the grinding discs. The ground material and vapour resulting therefrom pass through a collecting chamber 14 to a vessel 18 provided at its outlet end with a trap 19 which enables liquid to be discharged without the escape of air or vapour. The air or vapour passes from the vessel 18 by a pipe 23 to a cooler 20 which is connected by a pipe 24 to the secondary chamber 15. Vapours condensed by passage through the cooler 20 may be collected outside the mill or re-admitted to the feed hopper 13. The disc 7 is adjustable relatively to the disc 11 by means of a hand wheel 3 provided with two differential screw threads.
Patent GB-553156-A (GB)
Title: Thread-guide for sewing machines
IPC: D05B51/00
Filed: 1942-08-05
Abstract: 553,156. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Aug. 5, 1942, No. 10928. [Class 112] The under-thread t of a doubleloop stitching machine is led to the. rotary take-up 6 along a tube 9 of rectangular cross-section let into the machine work-plate. The tube is cut throughout its length by a sinuous slot 12. A sewing thread, after being threaded through the eyes 11 and 7 and stitched upon the outside of the tube can be rubbed through the slot by the passage of the finger over the length of the tube. The cut in the tube allows the tube to be a spring fit in the work-plate slot.
Patent GB-270889-A (GB)
Title: Improvements in connection with sprinklers for gardens, lawntennis and other games courts and for analogous purposes
IPC: B05B15/628
Filed: 1926-04-26
Abstract: 270,889. Whiteford, B. H. April 26, 1926. Hydrants.-Apparatus for spraying gardens, tennis courts, &c. comprises a more or less horizontal tubular arm 5 attached to and opening from a vertical supply pipe 3 rotating in eyes 4 attached to a vertical post 1 and carrying at its outer end a sprinkling-device such as a Barker's mill 6. The tubular arm may be mounted on a trestlelike support, and may be turned into the vertical when out of use.
Patent GB-472556-A (GB)
Title: Improvements in the means for driving tube drawing benches
IPC: B21C1/30
Filed: 1936-04-16
Abstract: 472,556. Making tubes. EVANS, W. E. (Demag Akt.-Ges.) April 16, 1936, No. 10954. [Class 83 (iv)] Cupping.-In a tube-making push-bench the rack 4 is driven forward and returned by a continuously running 3-phase motor 1 driving the pinion 3 through a hydraulic gear 2 which is reversed by projections on the rack tripping switches 11 of an electromagnet 6 or 7 which actuates the rockable cylinders of the pump and actuating units in the gear 2, until, at the end of the return stroke the switch 10 is tripped, so actuating electromagnet 6 to swing the pump cylinder into neutral position after which it is swung back automatically into working position. In a modification the pump drives two or more separate gears each with a driving pinion for the rack, so that if the reversing devices above fail to act and the rack runs clear of one pinion the hydraulic pressure 'will act only in the drive of the rack engaging pinion. The electric motor may be located where convenient at a distance from the hydraulic gear and coupled thereto by pressure piping. The hydraulic gear may be as described in Specifications 380,578 and 406,492, [both in Group XXIX].
Patent GB-251625-A (GB)
Title: Improvements in locomotive rod mechanism
IPC: B61C17/08
Filed: 1926-04-26
Abstract: 251,625. Woodard, W. E. May 2, 1925, [Convention date]. Driving-gear of crank-type, coupling-rods, and like mechanism. - The connecting-rod 13 is articulated to the rear portion 14 of the coupling-rod so as to be applied and, removed therewith as a unit, the remaining parts 11, 12 of the coupling- rod being inside the plane of the connecting-rod. The end 15 of the connecting-rod is forked to receive the eye 16 of the rod 14, a bush 17 with a press fit constituting the joint between the two rods, this bush fitting over a bearing sleeve 20 on the main crank pin 7. The eye 16 bears on the 'bush 17 through a bearing 19.
Patent GB-416735-A (GB)
Title: Improvements in electric condensers
IPC: H01G4/20
Filed: 1933-04-12
Abstract: 416,735. Condensers. ELEKTRIZITATS AKT.-GES. HYDRAWERK, 32, Drontheimerstrasse, Berlin. April 12, 1933, No. 10995. Convention date, April 20, 1932. Addition to 410,807. Drawings to Specification. [Class 38 (ii).] Paper is impregnated with styrol or polymerization products of styrol for use as additional dielectric in condensers made according to the parent Specification. Impregnated paper and foils may be wound together in stock rolls from which the combined strip may be taken to produce condensers. An outer coating of artificial resin may be applied to the finished condenser body.
Patent GB-106369-A (GB)
Title: Improvements in Magazines for Fire Arms.
IPC: F41A9/70
Filed: 1916-08-04
Abstract: 106,369. Enever - Chevallier Patent Automatic Small Arms Co., and Chevallier, A. L. Aug. 4, 1.916. Breech actions, sliding breech-block; breech actions, sliding barrel and breech-block.-Consists in providing a box magazine with improved means for preventing double loading, comprising a spring pressed lever d pivoted in the side of the magazine, and having its rear end projecting into the magazine above the top cartridge but one. The front of the lever is provided with an incline f adapted to be engaged by the forwardly moving breech-mechanism to turn the lever to release the cartridge.
Patent GB-490780-A (GB)
Title: Improvements in centrifugal moulding apparatus
IPC: B22D13/10
Filed: 1937-04-17
Abstract: 490,780. Moulding concrete pipes &c. centrifugally. ABELES, P., BRAUNBOCK, E., and GRIMM, A. April 17, 1937, No. 11041. Convention date, April 17, 1936. [Class 87 (ii)] Hollow beams, pipes, &c. of concrete or other plastic materials are moulded centrifugally in a mould supported and frictionally driven by rollers, an idle roller for pressing the mould against the supporting rollers being mounted on a carrier which enables the roller to be moved aside so that the space above the mould is clear. In Fig. 1, the mould 1 has runners 2 resting on rollers 4 one or both of which are driven. The idle roller 8 is mounted on an arm 11 which is pivoted on a post 12 and has a notched free end engaging a post 13 so that it can be swung horizontally clear of the mould. Springs 14 and nuts 14a control the pressure of the roller 8 on the mould. The greater part of the machine is sunk in a pit in the foundation and the uprights 9 may be dispensed with, the beams 10 being supported directly on the foundation. In a modification, Fig. 7, the roller 8 is carried by an arm 17 pivoted on a horizontal shaft 5 and loaded by a weight 18 which is connected thereto by a cord 19 passing over a pulley 20 on the end of a lever 21. The lever raises the weight to the operative position. In another modification, Fig. 8, two rollers 8 are carried by arms 23 slidable horizontally by racks and pinions 25. The arms 23 may be downwardly inclined to increase the pressure applied to the mould. The runners 2 on the mould have joints comprising two overlapping tongues 3 which are chamfered off at 2<1> for half their length to ensure smooth running. Specification 168,762, [Class 83 (i)], is referred to. The Specification as open to inspection under Sect. 91 comprises also a modification in which the arm 11 is pivoted about a horizontal axis and is held down by a weight or spring. The upright 9 may also be telescopic. This subject-matter does not appear in the Specification as accepted.
Patent GB-1497726-A (GB)
Title: Winding apparatus for textile yarn
IPC: B65H54/74
Filed: 1975-03-17
Abstract: 1497726 Textile bobbins RHONE-POULENC-TEXTILE 17 March 1975 [18 March 1974] 11064/75 Heading B8M [Also in Division D1] A method of winding a textile yarn package comprises rotating about its axis a winding roll 1 of a winding apparatus, the roll 1 having starting-up rings 4, 5, rotating a tubular support 20 of the apparatus, which tubular support 20 has annular depressions 8, by tangentially engaging the support 20 with the rings 4, 5 and feeding and traversing a textile yarn on to the support 20 whereby when the package 3 of yarn builds up its recipient horns 6, 7 are accommodated in the depressions 8 while its major portion engages the winding roll 1 to be rotated by it. Contact between the rings 4, 5 and the support 20 is broken at this point. The depressions 8 are formed on the support 20 in the form of channels or grooves. The bottom of the depressions can have concave curved profile. In an alternative embodiment the depression is in the form of a flat recess which is joined to the outer surface of the support via a chamfer 14 at one end or a rounded portion, and a radiused portion 15 at the other end.
Patent GB-635079-A (GB)
Title: Improvements in or relating to pouring or discharge nozzles
IPC: A47J36/14
Filed: 1947-04-25
Abstract: 635,079. Nozzles for teapots &c. EDWARDS, E. April 25, 1947, No. 11084. [Class 66] [Also in Group XXIX] A detachable spout extension for a teapot, etc has a rubber or like sleeve 2 in a resilient metal sheath 1 slotted to form 'fingers' 3 with their tips turned over to hold the sleeve in place.
Patent GB-1041308-A (GB)
Title: Improvements in or relating to electrical circuitry
Inventor: LENO JOHN ALBERT
IPC: H05K3/10
Filed: 1964-03-17
Abstract: 1,041,308. Circuit assemblies. STANDARD TELEPHONES & CABLES Ltd. March 17, 1964, No. 11189/64. Addition to 981,104. Heading H1R. In an electrical logical circuit comprising an insulating plate having first and second sets of parallel conductive tracks disposed mutually at an angle on opposite faces thereof, circuit elements connected to individual tracks, and interconnections between the tracks of said sets at selected cross-points, either the tracks are located in grooves in a rigid insulating plate, or the insulating plate is flexible and the circuit is folded concertina-wise. In Fig. 1, mutually orthogonal sets of parallel grooves 2, 3 in opposite faces of plate 1 of ceramic or plastics material are metallized, together with further grooves 4 used for power and signal inputs &c., by electroless chemical plating of Cu, Ni &c., followed by electrodeposition of further metal; holes 8, 9 through plate 1 are similarly metallized at the same time. Margin 10, which is metallized to provide a bus-bar for the electroplating step, is subsequently removed mechanically. Circuit elements 11, 13 are disposed in cavities 5, 6 on either side of the plate 1, their leads being soldered or welded into the metallized grooves. Further elements are housed in holes 9 in the plate, and are connected to grooves on either side, while holes 8 form direct connections between grooves of the two sets. A multi-pin plug connector 16 is provided, and cover plates (not shown) may be stuck to each face of the plate to seal the unit. In Fig. 3, conductive tracks 22, 23 are applied to opposite sides of a flexible plate 21, interconnections between tracks being effected by components or connectors located in holes 27 punched in the plate. Circuit elements 24 are secured to tracks 22, and the assembly is folded concertinawise (Fig. 5, not shown), and fitted into a rectangular casing of cardboard &c., and housed in a modular framework (Fig. 7, not shown).
Patent GB-331916-A (GB)
Title: Improvements in the recovery of the products of destructive hydrogenation and cracking processes
IPC: C10G5/04
Filed: 1929-04-11
Abstract: 331,916. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). April 11, 1929. Hydrogenation, destructive.-The products of destructive hydrogenation, leaving the reaction vessel in the gaseous form, are washed and the vapours simultaneously condensed by contacting them, while still under pressure, with a washing oil e.g. hydrocarbon oils of high boiling point, destructive hydrogenation products and the like. A middle oil obtained by fractional distillation from a brown coal low temperature distillation tar and containing 2 per cent of sulphur is treated with hydrogen at 450-470‹ C. and 200 atmospheres pressure in the presence of a catalyst prepared from molybdic acid and zinc oxide. A washing oil boiling at 200‹ C., e.g. an oil obtained by the same process, is sprayed into the gaseous mixture leaving the reaction vessel and the mixture cooled in a condenser. A condensate is obtained comprising the washing oil and the condensible products of the reaction in which most of the hydrogen sulphide and gaseous hydrocarbons produced in the reaction are dissolved. The effluent gases contain less than 3 per cent of hydrogen sulphide and can be employed over again for further hydrogenation. The Provisional Specification states that the reaction may be applied to cracking processes. Specification 331,509 is referred to.
Patent GB-329464-A (GB)
Title: Improvement in or relating to retorts for use in the low temperature distillation of carbonaceous material
IPC: C10B1/04
Filed: 1929-04-11
Abstract: 329,464. Carlton Main Colliery Co., Ltd., Addy, R., and Gill, S. April 11, 1929. Retorts.-In retorts for use in the low-temperature distillation of carbonaceous material, and comprising two vertical concentric chambers A, B, the means for moving the inner chamber vertically with respect to the outer chamber form part of the structure and serve to retain the inner chamber in its raised and closed position during working. The space between the chambers is divided by radial ribs B<3>, and an annular space A<2> around the outer chamber allows of the passage of heating gases. The distillates pass into the interior of the hollow inner chambers through slots B' and pass through holes D in the stem of conical closing members D<1> and out to a delivery pipe D<2>. The inclined sides of the slots are upwardly directed and may have conterminous plates E, Figs. 5 and 6, within the inner retort. In a modification, the retort is adapted also to be internally heated. The inner chamber B, Fig. 3, is provided with an inner wall B<5> within which hot gases are admitted, the distillates passing to the space between the chamber B and its inner wall B<5> and to the delivery pipe as aforesaid. The inner chambers are carried by beams or girders F which are moved by means of rods F<1> connected to rams F<2> disposed in pressure cylinders F<3>.
Patent GB-973987-A (GB)
Title: Conveyor chain
IPC: B65G17/40
Filed: 1963-03-21
Abstract: 973,987. Conveyer chains. CHAIN BELT CO. March 21, 1963 [May 16, 1962], No. 11256/63. Heading B8A. A conveyer chain, comprising bar links 3 alternating with links 2, each consisting of two plates 6 bridged by pivot pins 5, is made laterally flexible by inward bowing of the ends of the plates. The pins 5 are interference fits in the holes 17 in the plates, but loose fits in the holes 4 in the bar links. The clearance between the edges of the bar links and the curved surfaces of the link plates 6 is only sufficient to permit the desired flexing. The ends 21 of the pins 5 may have upset edges to ensure their retention and they preferably do not project beyond the plane of the outer flat surface of the central parts of the plates. Similarly, the ends 12 of the plates should not lie outside this plane.
Patent GB-299795-A (GB)
Title: Improvements relating to retorts for the distillation of solid carbonaceous substances
IPC: C10B3/00
Filed: 1927-04-27
Abstract: 299,795. Low Temperature Carbonisation, Ltd., and Parker, C. H. April 27, 1927. Retort furnaces.- A setting for vertical retorts comprises a row of recuperator chambers c situated between two rows of alternating combustion chambers a and retort chambers b, the combustion chambers communicating with the recuperator chambers through ports c' at their upper ends, and the transverse walls e<1> separating the recuperator chambers one from another having ports e<2> at their lower ends, through which the waste gases are exhausted to the chimney. The retorts b, each of which preferably consists of a number of tubes integrally formed as a unit, are situated within the retort chambers b, and are mounted on base fittings b<2>, carried in pairs by the frames b<3>. The walls of the retort chambers are built of tongued and grooved box bricks a<3> arranged with their open sides to the retorts, and spaces may be left adjacent the outer and inner walls d, e forming connecting ports between the retort and combustion chambers. In each combustion chamber is built a massive chequer brickwork wall a<4> serving as a heat accumulator, and at the base of this wall air and gas for combustion are delivered at both sides through ports a<10>, a<7> respectively. The air supply passage a<8> is roofed over by the passage a<6>, to which gas is supplied by a pipe g extending to about the middle of the width of the combustion chamber. The wall a<4> terminates at the level of the ports c<1> and may have at its upper end, and also at a lower level, a course of projecting bricks a<5>. Discharging. - The retorts are closed at their lower ends by hinged doors b<6>, and the coke is discharged into extensions i closed by pivoted plates i<3>, the extensions for the two lines of retorts being arranged to deliver on to a common conveyer or other receiving means. Each retort is closed at its upper end by a hood b<4> having a connection b<5> to the hydraulic main h, to which is also connected a pipe i<1> from the extension i, in which the distillation of the charge may be completed or cooling effected.
Patent GB-596571-A (GB)
Title: Method of separating minerals of different specific gravity
IPC: B03B5/30
Filed: 1944-06-13
Abstract: 596,571. Sink and float separation ; alloys. AMERICAN ZINC, LEAD & SMELTING CO. June 13, 1944, No. 11309. Convention date, June 18, 1943. [Classes 82 (i) and 82 (ii)] In a process for separating particles of a heavy material of known specific gravity from an unwashed unsized mixture containing particles of a lesser specific gravity, the materials, which are present in widely varying particle size and contain fines, are subjected to an upward rising fluid mass, comprising a finely divided magnetisable solid suspension in a liquid and which has a specific gravity between those of the particles, in a cone-shaped vessel. The light particles which float are overflowed, a coarse light fraction is drawn off, from a point below the overflow but sufficiently high to ensure freedom from heavy particles which have a more rapid rate of fall. In Figs. 1A and 1B this intermediate fraction is drained and washed to produce a light coarse concentrate. The heavy sinking fraction is drawn off and subjected to a second treatment in a similar cone, the heavy fraction from which is drained and washed to produce a heavy coarse concentrate. An intermediate fraction from the second cone is pumped to a crusher and used as feed for the first cone. The overflow from the second cone is mixed with that from the first, and the twowash water after magnetisation to produce flocculation used as feed for a third cone. The heavy fraction and intermediate fraction from the third cone, after demagnetisation, are screened to produce a heavy fine concentrate and a light fine concentrate respectively. The overflow from the third cohe together with the undersize from the heavy fine and light fine screens are treated in a magnetic thickener separator and the demagnetized clean medium returned to the system. In a modification, Fig. 2, the intermediate fraction from the first cone is used directly as feed for the second cone, the intermediate fraction from which gives a light coarse concentrate. The heavy fraction from the first cone is used as feed for the third cone a heavy coarse concentrate being obtained from the heavy fraction, and the intermediate fraction together with the heavy fraction from the second cone being returned after crushing as feed for the first cone. In a further modification, Fig. 3 (not shown), similar to Figs. 1A and 1B, the feed to the third cone is screened, the undersize going to a magnetic thickener separator which gives a purified magnetic medium for use in the first and second cones, the overflow from the cone being cleaned, demagnetized and recycled. The heavy medium may be any magnetisable substance including alloys of iron and Hensler's alloy, 60 per cent copper, 26 per cent manganese, balance aluminium, zinc, lead in small amounts.
Patent GB-124353-A (GB)
Title: Improvements in or relating to Infantry Shields.
Inventor: HUDZIAK ALBERT
IPC: F41H5/12
Filed: 1918-07-10
Abstract: 124,353. Hudziak, A. July 10, 1918. Infantry shields.-Two bent bullet-proof plates 10, 11 are connected by a vertical hinge 12 to allow folding up or opening out. A firing aperture 21 is formed in the hinge-line, and hinged tie-bars 18 and carrying straps 14 are provided.