baber/WOPTO huggingface dataset:
Patent GB-739816-A (GB)
Title: Improvements in process for manufacturing dicyanobutene
Filed: 1953-07-03
Abstract: An improvement in the manufacture of 1,4-dicyano-2-butene by the reaction of dichlorbutenes, e.g. either 1,4-dichloro-2-butene or 3,4-dichloro-1-butene or mixtures thereof, with hydrogen cyanide formed in situ from sodium cyanide in a liquid aqueous acidic medium containing a dissolved cuprous compound as catalyst, comprises removing ferrocyanide iron from a liquid aqueous copper-containing phase, which constitutes the catalyst recycle stream, by lowering the pH of the aqueous phase to such a level that substantially all of the ferrocyanide iron is precipitated with resultant slurry, admixing at least a part of the slurry with sufficient alkali metal cyanide to dissolve cuprous cyanide leaving part of the ferrocyanide iron undissolved, and thereafter separating the liquid phase from the remaining slurry.  Preferably the pH of the aqueous phase is lowered to between 1.0 and 2.5 preferably 1.7, the slurry of copper-containing compound thus produced is concentrated by removal of liquid component therefrom, and is admixed with only enough aqueous sodium cyanide to produce a pH of 4.0 to 4.5, whereby cuprous cyanide goes into solution and part of the ferrocyanide remains undissolved, the liquid phase is separated from the remaining slurry and recycled to the reaction vessel in which the reaction between HCN and dichlorobutenes takes place. The concentrated product may be further treated with manganese, cadmium, cupric or ferric ions as in Specification 732,863 for a final purging of ferrocyanide ions. Alternatively, Mn ions can be introduced into the mixture immediately prior to removal of the liquid phase from the slurry at a pH of 4.0 to 4.5.  The optimum temperature, in the absence of manganese, is 50 DEG  to 80 DEG  C., but in the presence of manganese, temperature in the range 0 DEG  to 100 DEG  C. may be used, preferably 20 DEG  to 40 DEG  C.  In examples (1) the pH of an aqueous raffinate, produced by benzene extraction of the products obtained by reaction between dichlorobutenes and HCN, is lowered to 1.7 to precipitate cuprous cyanide and cuprous ferrocyanide which are then filtered.  NaCN is added to the slurry to give a pH of 4.5 and the undissolved ferrocyanide iron is removed by settling.  The remaining liquid containing dissolved copper may be used in the cyanation process. When NaCN is added to give a pH of 10, all the ferrocyanide dissolves; (2) NaCN is added to the slurry as in (1) to produce a pH of 4.5 and aqueous manganese chloride was added to precipitate further ferrocyanide. Specification 639,438 also is referred to.
Patent GB-121591-A (GB)
Title: Improvements in or relating to the Separation and Refining of Metals.
Inventor: HAGLUND GUSTAF
IPC: C22B3/00
Filed: 1918-11-12
Abstract: 121,591. Haglund, G. Dec. 19, 1917, [Convention date]. Nickel salts; zinc salts.-Granular coppernickel, copper-zinc, or other alloys, obtained for instance by roasting and reducing matter, are treated with sulphuric or other acid solution until the acid is neutralized, and the solution is further treated with the same material to cement out the copper and produce a solution of nickel, zinc, or the like for electrolysis. Mattes containing the two metals may be substituted for the alloy in the neutralizing process. Air is introduced with the acid. The acid obtained in electrolysis is reused for dissolving the alloy or matte.
Patent GB-1187896-A (GB)
Title: Apparatus for Transverse Heat-Sealing of Thermoplastic Webbing.
IPC: B29C65/22
Filed: 1968-04-19
Abstract: 1,187,896. Seaming non-metallic sheet material. PAPER CONVERTING MACHINE CO. Inc. 19 April, 1968 [8 May, 1967], No. 18578/68. Heading B5K. [Also in Division H5] Apparatus for heat sealing superposed thermoplastic layers 10, e.g. polyethylene, comprises an electrically continuously-heated ribbon 19 and means for bringing a surface of heat-conductive cooling means 20 into contact with the ribbon 19 after the ribbon has effected a seal to cool the ribbon and prevent severing of the layers 10. A sealing element 14 and a backing element 15 are mounted on a frame (not shown), either element being movable towards and away from the other element. The element 15 comprises a roll rotatably mounted on a shaft 17 and provided with a resilient surface layer 18, e.g. of rubber. The element 14 comprises the continuously-heated metal ribbon 19 supported on a tubular member 20 filled with cooling fluid 21. Layers 23, 24 of thermal and electrical insulating tape, e.g. polytetrafluoroethylene, are provided on each side of the ribbon 19. A current supply lead 25 is clipped at 26 to the ribbon 19 which is arched slightly in the transverse direction. Normally a space 27 is formed between the ribbon 19 and the cooled tube 20 but, in use, the ribbon is pressed against the tube. To provide a continuous rather than an intermittent sealing operation, the elements 14, 15 are mounted on moving chains to heat seal a moving web. The apparatus may be used to transversely seal a flattened tubular web having side gussets to form a roll of end-connected bags which can be detached by lines of weakness or perforations situated adjacent to the seals.
Patent GB-636728-A (GB)
Title: Sewing machine for stitching leather cases
IPC: D05B15/00
Filed: 1948-07-10
Abstract: 636,728. Sewing-machines. SINGER MANUFACTURING CO., Ltd., and HEGGIE, J. July 10, 1948, No. 18621. [Class 112] A machine for sewing suit-cases and the like has an inclined throat-plate on the end of the work arm, with abutment means for the corner of the case, a work-retainer to press the work against the abutments, a vertically-reciprocating and laterally movable needle, and a pusher engaging the needle beneath the throat-plate to impart lateral movement to the needle to feed the work. Corner-sewing; stands.-In the embodiment shown the throat-plate 4 is removably secured to the free work-arm 1 of a sewing-machine, and has fixed to it an abutment 5 to form an angle to receive the work 6. A retainer 24, with a roller on its end, is secured in a sleeve 26, Fig. 8, adjustable along an arcuate member 27 pivoted at 28 to the top of a pillar 29, to which is attached a stay-bar 30 connected to the machine arm 1 and supporting the latter. The retainer is rocked about the pivot 28 by a lever 31 actuated by a pedal-rod 36 through an adjustable spring 35 which limits the pressure on the retainer to avoid clamping the work to the throat-plate. The arm 24 may be of bail form instead of straight, to enter the work from the side. Needle-holders; feed by needle. The needle 7, Fig. 2, is fixed to an arm 8 pivoted at 9 to a bracket 10 on the lower end of the needle-bar 11, a spring being provided to keep the needle normally in line with the needle-bar. A pusher 12 on a feed rock-shaft has a lug which projects through the needle slot in the throat-plate 4 and, when the needle has penetrated the work, pushes the needle sideways to feed the work. When the needle is retracted from the work it is brought back into line with the needle-bar by its control spring ; in case of failure of the spring, a cam is provided on the machine head to engage the arm 8 as the needle-bar rises and thus restore it to its initial position.
Patent GB-582914-A (GB)
Title: Improvements in or relating to lamp supports
IPC: F21V21/14
Filed: 1944-09-29
Abstract: 582,914. Supporting lamps. WALLER, F. E. Sept. 29, 1944, No. 18647. [Class 75 (iii)] [Also in Group XXV] A lamp 1 is mounted by one or more ball joints 3; 4 on a clip 9 formed with jaws 10, 11 to engage a machine pillar or other supporting object and adapted to also serve as a stand to rest on a supporting surface. In the construction shown the jaws 10, 11 are carried by handles 12, 13 provided with lugs 16, 17 connected by springs 18, the handles being also provided with pivoted extensions having bent over portions 15 to form feet when the clip is being used as a stand. The ball joints 3, 4 are spaced apart by bars 5 which may comprise pairs of slotted plates so as to be adjustable in length. The jaws may be pivoted to the handles so as to grip irregular objects or may be carried by telescopic extensions secured to the handles by pin-and-slot or ratchet-and-rack connections.
Patent GB-681936-A (GB)
Title: Improvements in and relating to electric brush and commutator or slip ring gear
Inventor: SIMS ROBERT FRANK
IPC: H01R39/38
Filed: 1950-07-26
Abstract: 681,936. Brush-gear for dynamo-electric machines. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 19, 1951 [July 26, 1950], No. 18708/50. Class 35. A brush holder 23 accommodating two contiguous and sliding brushes 11, 12 bridged by a member 19 which is hinged by a pin 18 to a member 14 secured to the brush 11 by a rivet 15. The bridging member 19 has an indentation 22 to take the end of a spring 21. The brush 11 is provided with a recess 17 to receive the head 16 of the rivet 15.
Patent GB-759424-A (GB)
Title: Improvements in and relating to devices for the proportionate mixing of liquids
Inventor: FRANCIS KENNETH
IPC: B67D1/00
Filed: 1954-06-25
Abstract: 759,424. Mixing fluids in flow. LIQUID CARBONIC CO., Ltd. June 14, 1955 [June 25, 1954], No. 18714/54. Class 86. In a device for the proportionate mixing of liquids, one liquid, say water, is supplied under pressure alternately to the opposite ends of a cylinder 15a causing reciprocation of a piston 4 therein, and the other liquid, say syrup, is delivered to a cylinder 3 and thence supplied in the desired proportions to the cylinder 15a under the action of a piston 5 having its rod 22 connected with the rod 8 of the piston 4 by a pivoted lever 18. The cylinders 2, 3 are interconnected by passages 46 disposed at the ends and fitted with non-return valves 47. Automatic control is effected by a three-way valve 31 whose position is determined by pneumatic limit switches 29 actuated by the end of the piston rod 8. As piston 4 is moved to the right under the action of water supplied through valve 31 and passage 16, syrup on the left of piston 5 is forced through a passage 46 (not shown) into cylinder 2 and on the left-hand side of piston 4. Meanwhile a mixture of water and syrup already on the right-hand side of piston 4 is forced through a bore 11 in rod 8 and channels 15, 13 and 33 to the discharge port of the valve 31. At the completion of its stroke the piston rod 8 actuates right-hand limit switch 29 which causes reversal of the inlet and outlet ports in the valve 31. The liquid mixture on the left of piston 4 is then discharged through port 16 to valve 31 whilst water entering the cylinder 2 through bore 11 forces the piston 4 to the left. Also syrup is delivered from the right-hand side of piston 5 to the cylinder 2 through passage 46. Movement of a bracket 21 carrying the pivot point 20 of the lever 18 causes variation in the mixture proportions. Syrup is supplied to the cylinder 3 through branched conduits 42, 43 and non-return valves 44, 45.
Patent GB-712569-A (GB)
Title: Window actuating mechanisms
Inventor: MATTHEWS ALBERT GEORGE
IPC: E05F17/00
Filed: 1952-07-24
Abstract: 712,569. Window actuating mechanisms. HOPE & SONS, Ltd., H. July 17, 1953 [July 24, 1952], No. 18737/52. Class 20 (3) A row of casement windows b pivoted at a are simultaneously actuated manually, or by an electric motor k, with wire ropes or chains d, e of appropriate length attached to a segmental arm c and supported in a peripheral groove therein. The other ends of the ropes are connected by shackles m, n a suitable distance apart, to rods, wire ropes or like, g or h or, alternatively, these ends may be interconnected, only those from the end arms being secured to a rod g or h. The ropes of all the windows opening outwardly in one direction are connected to one rod g and those opening outwardly in the opposite direction are connected to the other rod h. The segmental arms may extend only from the inside of the window and the end f of rope e may be anchored to the appropriate end of the arm c. Rods g, h are connected by a chain i,
Patent GB-318335-A (GB)
Title: Improvements in the valve mechanism of dry gas meters
IPC: G01F3/22
Filed: 1928-06-28
Abstract: 318,335. McRobbie, W. June 28, 1928. Gas. meters. - In order to increase the capacity of dry gas meters the slide valves are arranged so that the angle between their lines of motion is less than 90‹ but above 65‹ and the chords of the arcs described by the points of attachment of the flag-arms K, K<1> with the links L, L<1> connecting them to the driving crank M of the shaft of the indicating mechanism from continuations of centre lines of the valve seatings P, P<1>.
Patent GB-1403286-A (GB)
Title: Container carriers
IPC: B65D67/02
Filed: 1973-04-18
Abstract: 1403286 Container carriers ILLINOIS TOOL WORKS Inc 18 April 1973 [20 April 1972] 18744/73 Heading B8C A carrier for a plurality of containers 10 comprises a sheet of a resiliently deformable plastics material having downwardly open pocket formations arranged in side-by-side relationship, each pocket formation including a cover portion 24 joined by an annular wall 26 to a reduced diameter gripping edge 28. The annular walls have been stretched beyond the elastic limit to become non-resilient. The edge portions 28 are joined to one another by web portions of the sheet and having lines of weakness to permit individual containers to be removed with corresponding parts of the carrier. The lines extend between slits or cut out portions at the edges and finger holes in the sheet.
Patent GB-117216-A (GB)
Title: Apparatus for Exercising the Muscles of the Back, Abdominal Wall and Lower Extremities.
Inventor: BURTON HARRY CECIL
IPC: A63B21/068
Filed: 1917-12-18
Abstract: 117,216. Burton, H. C. Dec. 18, 1917. Exercising - apparatus. - Relates to apparatus for exercising the muscles of the back, abdominal wall and lower extremities. A seat u is mounted on a support 3 pivoted at 4 to the base 2 and is connected by links 9 to hand-levers 7 pivoted to the base at 6. A quadrant 16 is formed with holes to receive a pin to limit the forward movement of the seat. A foot-rest 11 is adjustably mounted on supports 12. The upper ends of the levers 7 may 'be pivoted so that they can be folded backwards as indicated in dotted lines to allow access to the seat. In this case, a locking-device is provided to render the levers rigid. In use, the seat is oscillated by the operator by means of the handles.
Patent GB-298929-A (GB)
Title: Improvements in apparatus for mixing materials
IPC: B22C5/04
Filed: 1927-07-16
Abstract: 298,929. Smith, A. B., and Smith, C. R. July 16, 1927. Stationary mixers with rotary stirrers.-In a mixing apparatus for foundry sand, clay, or road materials, in which the materials contained in a pan are squeezed in wedge-like pockets formed between rotating stirrers or sweeps and fixed pressure surfaces or plates, as in Specification 278,177, the pressure surfaces consist of rollers mounted on fixed or spring-influenced axles, and the sweeps may also be resiliently mounted. In one form a conical roller e, Fig. 2, is mounted on an inclined axis; in another form the roller h is mounted on pivoted arms k and the pan is provided with a deflector n. As shown in Fig. 4 the roller p is mounted on pivoted arms q the other ends of which rest on adjustable stops s; a spring-influenced scraper u is provided and a deflector t guides the material between the roller p and the inclined leading edge of the sweep c. The roller shafts may also be mounted in sliding, spring bearings, and, as shown in Fig. 6, the sweeps y may be yieldably and pivotally mounted and co-operate with rigidly mounted rollers.
Patent GB-1366827-A (GB)
Title: Camouflage nets
IPC: F41H3/02
Filed: 1972-04-24
Abstract: 1366827 Camouflage net VERVERIJ SPECTRUM NV 24 April 1972 [23 April 1971] 18897/72 Heading D1K [Also in Division B5] A camouflage net comprises a ground net having strips of material covered on each side with non-woven vegetable fibrous material attached thereto. The vegetable material may be flax or flax and cotton and is dyed prior to attachment. The two sides may be of different colours; the material may be needle-punched to provide mixed colours on one side. The material is rendered fire-, water-, and rotresistant; its edges are scalloped.
Patent GB-1443993-A (GB)
Title: Polyene compounds
IPC: C07C69/95
Filed: 1973-11-02
Abstract: 1443993 Polyene compounds F HOFFMANN-LA ROCHE & CO AG 2 Nov 1973 [2 Nov 1972] 18974/75 Divided out of 1443992 Heading C2C The invention comprises compounds of the formula where R 15  is an alkanoyl group of 2-18 carbon atoms or an aroyl group. The compounds are prepared by treating a compound of the formula with an alxanoic or an aroic acid. Compounds of the formula where # represents a cis-configuration and #<SP>1</SP> represents a trans-configuration may be prepared by treating a compound of the formula with an alkanoic or an aroic acid. Compounds of the formula where R 15 <SP>1</SP> is H, an alkanoyl group of 2-18 carbon atoms or an aroyl group may be prepared by treating a compound of Formula I with a compound of the formula where R 4  is C 1 -C 6  alkyl, C 1 -C 6  alkyl substituted cycloalkyl, phenyl, cycloalkyl or C 1 -C 6  alkyl substituted phenyl, R 5  has any of the values accorded to R 4  or is (R 4 ) 3 Si-, m is 1-3 and n is 0-2 with the proviso that the sum of m and n is 3, to form a compound of the formula reducing the keto group to a hydroxy group and dehydrating, optionally after converting the hydroxy group into a leaving group.
Patent GB-574230-A (GB)
Title: Improvements in or relating to connecting means for conductors of co-axial electrical transmission lines
IPC: H01P1/06
Filed: 1943-11-15
Abstract: 574,230. Swivelling-couplings. BRUNO PATENTS, Inc. Nov. 15, 1943, No. 19028. Convention date, Nov. 14, 1942. [Class 38 (i)] [Also in Group XXVI] A joint allowing relative rotation between two lengths of a tubular outer conductor of a coaxial line is enclosed in a casing containing packing to produce a gas and liquid tight seal for the joint. The casing 7 is attached to the stationary conductor 4 and contains bearings 12, 12<1> for the rotary conductor 1. Formed in the casing is an annular shoulder which may have a bead 17 against which fits a resilient ring 16 moulded to a metal ring 14 and shaped at 27 to fit round the conductor 1. The ring is held in place by a spacer 15 between it and the bearing 121 and put under pressure by a screw cover 18. A second resilient ring 161, Fig. 3 may be employed and oil or grease introduced between the two rings, the ring 161 having a tapered outer edge co-operating with the undercut lower surface of the spacer 15, or a third resilient ring having an upturned tapered outer edge fitted below the ring 161 to effect an oil or grease tight seal. The metal ring 14 may take various forms and be set at different positions in the periphery of the ring 16. The resilient rings are of synthetic oil-resistant rubber or neoprene.
Patent GB-1499410-A (GB)
Title: Method of fermentation using tubular fermentors incorporating wall scrapers
IPC: C12M1/06
Filed: 1975-05-06
Abstract: 1499410 Fermentations in tubular fermenters incorporating wall-scrapers UNIVERSITY OF WATERLOO 15 March 1976 [6 May 1975] 19044/75 Heading C6F [Also in Division B1] A method of fermentation of a substrate by micro-organisms capable of utilizing the substrate for growth involves continuously conveying a fermentation medium including the substrate and micro-organisms through a hollow tube, fermenting the substrate by the micro-organisms during the conveying of the fermentation medium through the tube, and scraping the internal walls of the tube during the conveying of the fermentation medium through the tube. Referring to the drawings, the scraper may be in the form of helical coils 24, 30, Fig. 1, a helical ribbon, auger or screw 100, Figs. 2 and 3, or disc-plates (200) driven around a tubular circuit by flexible cables (201), Figs. 4 and 5 (not shown). In the Fig. 1 apparatus oxygencontaining gas (or nitrogen) is introduced into the fermentation medium through perforations 26 in the coil 24 and the temperature is regulated by the passage of heat exchanger fluid through coil 30. In the apparatus of Figs. 2 and 3, the tubular fermenter is surrounded by a heat-regulating jacket 104 and gas is introduced from a sparger pipe 102 located therein. Aeration may be provided by blowing air through the tube. The medium may be liquid, liquid slurry, solid particles or paste. It may partially or completely fill the fermenter, and may be maintained in a plug flow pattern. Portions of fermented medium may be recycled. The Examples relate to the cultivation of a lipase producing strain of Candida lipolytica and to the degradation of cellulose solids by Trichoderma viride.
Patent GB-263420-A (GB)
Title: Improvements in detachable hat guards
IPC: A42B7/00
Filed: 1926-07-31
Abstract: 263,420. Wolff, F. W. J. July 31, 1926. Hat guards.-A detachable hat guard consists of a length a of narrow elastic fabric to each end of which is attached a hook b by the insertion of the elastic in the bifurcated end f of the hook, the bifurcations being secured together by inserting a tongue g, formed by bending one member f at right angles into a hole in the other and rivetting it over. In use, the hooks are inserted at the sides of the hat into the interior band and the guard is passed round the back d of the head.
Patent GB-1037668-A (GB)
Title: Electric filament lamp
IPC: F21S8/10
Filed: 1963-05-14
Abstract: 1,037,668. Vehicle headlamp bulbs. F. LOLLERT. May 14, 1963 [May 16, 1962; May 10, 1963], No. 19131/63. Heading H1F. A filament lamp for use with a parabolic reflector, especially in vehicle headlamps, has a long range filament located above a screen for the lower half of the reflector, the filament being shaped as an L, J or a U with the open end forwards, the limbs of the L, J or U being horizontal and one limb of the L or J or the arc of the U being transverse to the axis and slightly above and in front of the focus of the reflector. A short range filament may be arranged in the angle of the L or J or within the U. Various arrangements of the filament, in which (1) the limbs of the L are separate but connected at the junction, (2) the limbs are in the form of a continuous curve, (3) the arms of the U are at right angles to a straight base, (4) the U is a continuous curve and (5) arms of the U are of different length to produce asymmetric lighting, are described. Fig. 13 shows an arrangement in which a small part, e.g., of the filament is outside the cone formed by the focus 10 of the mirror 12 and its outside edge 14, whereby a small quantity of the light is reflected above the horizontal plane through the edge of the mirror as at 27.
Patent GB-1210870-A (GB)
Title: Method of manufacturing polycrystalline silicon carbide filaments
IPC: C04B35/573
Filed: 1968-04-23
Abstract: 1,210,870. Silicon carbide; reinforced articles; reinforced glass. PHILIPS ELECTRIC & ASSOCIATED INDUSTRIES Ltd. 23 April, 1968 [26 April, 1967], No. 19155/68. Headings C1A and C1M. [Also in Divisions B1 and E1] Polycrystalline silicon carbide filaments are produced by reacting carbon filaments at greater than 1400‹ C. with silicon monoxide produced by reacting silica with hydrogen. The filaments may be in the form of spun yarns e.g. cloths and may have a metal (e.g. molybdenum) core. The size of the crystallites may be increased by recrystallization. The filaments, fibres, mats or the like may be incorporated in metal (e.g. Al) glass or synthetic resin (e.g. urea resin). In the Examples (1) A graphite felt is converted to a silicon carbide filter (2) Plain weave rayon in the shape of a cone is converted to silicon carbide and the cone is embedded in a urea resin (3) Molybdenum wires coated with carbon are treated and a reinforced foil is made using these wires in aluminium.