baber/WOPTO huggingface dataset:
Patent GB-894139-A (GB)
Title: Preparation of polyester resins
Inventor: SARGENT EDWARD HENRY GEORGE
IPC: C08F283/01
Filed: 1959-07-01
Abstract: Unsaturated polyester resins are copolymerized, in the absence of any aqueous diluent, with a minor proportion by weight of a cross-linking composition containing acrylonitrile and/or methacrylonitrile and at least one other comonomer which is styrene or an alkyl styrene. Polyester components mentioned are maleic and itaconic acids, propylene and diethylene glycols and, in addition to the unsaturated acid, phthalic and isophthalic acids.  Polyesters of sebacic and adipic acids with unsaturated polyhydric alcohols may also be used. Alkyl styrenes specified are vinyl toluene and alpha-methyl styrene. In the example an isophthalic acid/propylene glycol/maleic anhydride polyester is copolymerized with a 50:50 mixture of styrene and acrylonitrile in the presence of 40% chalk filler using a combination of cobalt naphthenate and methyl ethyl ketone peroxide as catalyst. According to the Provisional Specification the ratio of unsaturated polyester-cross-linking composition may vary between 3:2 and 2:3 by weight.
Patent GB-623406-A (GB)
Title: Roving stop-motion for ring-spinning and like textile machines
IPC: D01H13/18
Filed: 1946-07-31
Abstract: 623,406. Roving delivery stop-motion for textile spinning &c. machines. COTTAM,. E., and COTTAM, R. B. July 31, 1946, No. 22753. [Class 120 (ii)] A roving stop-motion for textile ring-spinning and like machines, having roving-severing members controlled by feelers which bear against the yarns, has a centrifugal governor which renders inoperative all the feelers on a machine upon reduction of speed sufficient to cause yarns to slacken. When a yarn Q breaks while the machine is running at full speed, a feeler or control lever H swings forward and a comb G falls to impale the roving P. During re-threading, the comb G may be turned back to rest against a projection I, so as to hold the control lever H in an inoperative position. When the machine is not running at full speed, say 85 per cent or less, a stop bar B supports the control lever H. The bar B is turned by the centrifugal governor through arm V, bar X, lever N<SP>1</SP> and sliding collar M<SP>1</SP>. The machine speed at which the stopmotion is rendered inoperative by the centrifugal governor is adjusted by a screw G<SP>1</SP>.
Patent GB-986767-A (GB)
Title: Improvements in or relating to method and apparatus for automatic welding
Inventor: RIEPPEL PERRY JOHN
IPC: B23K9/032
Filed: 1962-06-13
Abstract: 986,767. Welding by fusion. DE LAVAL TURBINE Inc. June 13, 1962, No. 22783/62. Heading B3R. In automatic welding of, e.g., impellers and the like using a welding head to which fluxbearing shielding gas is supplied, the welding area is maintained in the flat position by concurrently moving the welding head along a straight path and the workpiece about a stationary axis. The welds joining two parts of the Impeller may be made along the mid-sections of the blades 115 where half of each blade 115 is fixed on each part or along the edges of the blades 115 where the blades are initially provided on one part only. The impeller 14 is mounted on a work positioner having a fixed base 116 and a frame 120 vertically adjustable on the base 116 and supporting a work-table 121 angularly adjustable about an axis parallel to its horizontal diameter and rotatable by a variable speed motor whose speed is altered by rotation of a shaft 127 by a motor 128. The welding head is supported on a trolley 15 attached to the base 116 by a coupling 138 which permits adjustment of the spacing and the angular relationship of the trolley 15 and the base 116. A column 20 is mounted on the trolley 15 so as to be movable transversely by a hand wheel 27 and longitudinally by a variablespeed motor 39. The control gear 149 is mounted in a lower frame 55 fixed on a shaft 53 journalled in a slide 51 vertically adjustable by a hand wheel 59 along the column 20. The shaft 53 is rotatable by a hand wheel 52. The flux hopper 50 and electrode reel 81 are carried by a carriage 83 traversable by a variable speed motor 89 along guideways 85 fixed on an upper frame 63 journalled on the lower frame 55 so as to be angularly adjustable about its longitudinal axis by a hand wheel 72. The torch 108 is attached to the carriage 83 by a horizontal pivot 110 and has a support 111 engaging the blade 115 to maintain the correct spacing of the torch 108 from the blade 115. Limit switches 41, 42, 92, 95 limit movement of the column 20 and the carriage 83 towards and away from the work. To weld straight blades the column 20 alone is moved. To weld curved blades the table 121 is rotated and the carriage 83 is moved. A blade of two different curvatures is welded by setting a cam-actuated switch 94 controlled by movement of the carriage 83 to operate the motor 128 to alter the speed of rotation of the work-table 121 at the correct time. Combined curved and straight blades can be welded, a cam-actuated switch 93 stopping the carriage 83 and the work-table 121 and starting movement of the column 20.
Patent GB-1023028-A (GB)
Title: Drop-dispensing device
IPC: B65D47/18
Filed: 1963-06-07
Abstract: 1,023,028. Drop-dispensers. I. GATH. May 1, 1964 [June 7, 1963], No. 22893/63. Heading B8T. A resilient drop-dispensing device 1 comprises a disc 8 intersected by an air-inlet tube 7 and a liquid-outlet aperture 9 communicating with a radial channel formed by walls 10 and leading across an annular recess 13 to a dispensing surface 2, 3, 4, 5 whose part 4 is arranged within the area of influence of the capillary or backflow suction of said channel such that partiallyformed drops are withdrawn into the channel when the container is restored to vertical. In one form (Fig. 2, not shown), the disc 8 is at the top of the device 1 and in another form (Fig. 5, not shown) the device has a cylindrical portion snap-fitting outside the container neck. The device may be closed by a screw cap 11 (Fig. 1) or a resilient stopper (Fig. 5, not shown).
Patent GB-924850-A (GB)
Title: Photograph objectives of variable focal length
IPC: G02B15/14
Filed: 1961-06-26
Abstract: 924,850. Variable focal length objectives. M. C. SCHNEIDER. June 26, 1961 [Aug. 5, 1960], No. 22978/61. Addition to 880,659. Class 97 (1). The objective of the parent Specification is modified in that the focal length of the front component is made less than four times the focal length of the basis objective, the front negative component consists of two air-spaced lenses and the rear negative component is a single lens. In the basic objective, the outer surfaces of the rear component are such that the reciprocals of the radii are in a ratio of more than three, and a negative component is provided with a cemented surface that is strongly converging. Optical data are given for two examples, of which one is as shown.
Patent GB-836712-A (GB)
Title: Improvements in or relating to apparatus for the reproduction of colour television images
IPC: H01J31/20
Filed: 1956-07-26
Abstract: 836,712. Colour television tubes. PHILIPS' GLOEILAMPENFABRIEKEN N.V. July 26, 1956 [July 26, 1955], No. 23138/56. Class 39(1). A further grid 2 is arranged on the gun side of the focusing grid 1, which is in registry with luminescent screen 3 and co-operates with field electrode 7 on or near the screen, and grids 1 and 2 are so arranged that the field between them decreases from the axis of the tube towards the edges. Over-focusing and lack of orthogonality at the screen edges is corrected. As shown grid 2, Fig. 1, is a flat array of vertical wires while grid 1 is a cylindrically curved array of horizontal wires. Grid 2 is maintained at final anode voltage of 5-5¢ K.V. while grid 1 is maintained 200-400V. negative to this, field electrode 7 being at 13 K.V. positive to electrode 1. In a modification grid 2, Fig. 2, is cylindrically curved and grid 1 is flat ; they may both be curved with axes at right angles. The tube may be of multiple-beam type with directional control. In a Lawrence type tube the grid 1 may be used for colour-switching also. The required field may be obtained by making the grid 2 of variable spacing.
Patent GB-480608-A (GB)
Title: Improvements in or relating to water tube boilers
IPC: F22B37/26
Filed: 1936-08-24
Abstract: 480,608. Water-tube steam boilers; preventing priming. STRAND, T. A. R., BLOMQUIST, U. O., and ALBIHN, H. F. Aug. 24, 1936, No. 23262. Convention date, Aug. 28, 1935. [Class 123 (ii)] In a water-tube boiler having riser tubes 2 opening into the steam space of the steam and water drum 1 through separators 7, the tubes have apertures 11 below the normal water-level in the drum to ensure the water circulation during the starting of the boiler. The apertures may be made in the riser tubes outside the drum, branch tubes being provided to connect the apertures to the drum. A separator comprises a cap 4 with deflecting surfaces directing the water rising through a tube back against an open collar around the top of the pipe.
Patent GB-734736-A (GB)
Title: Improvements in or relating to the production of artificial filaments and the like
IPC: D01F2/28
Filed: 1953-08-25
Abstract: Filaments, films and like products are produced by extruding or casting primary cellulose triacetate solution formed by the acetylation of cellulose in the presence of sulphuric acid as catalyst, without neutralization or elimination of the sulphuric acid, into a bath of dilute acetic acid at a temperature below 25 DEG C.  The cellulose triacetate contains 60-62.5 per cent of acetyl (calculated as acetic acid), and preferably has a degree of polymerization of 250-500, e.g. 350-400, and a concentration in the spinning solution of 8-14 and especially 11-12 per cent. The viscosity of the solution at 18 DEG  C. is preferably 500-1500 poises, especially 600-800 poises.  The spinning bath preferably contains 150-300 g./litre of acetic acid and its preferred temperature is 10-15 DEG  C.  The filaments are preferably stretched, e.g. 50-75 per cent, immediately after leaving the spinning bath and then washed free from acids by passing them through water at 80-100 DEG  C.  In an example a 12.4 per cent cellulose triacetate solution is spun into a bath containing 175 g./litre acetic acid at 12 DEG  C. with a travel of 50 cm. in the bath.  The yarn is stretched by rolls outside the bath, freed from adhering liquid and washed by passing it through a long tube in counter-current to a stream of water.  The yarn is then wound on a bobbin and the wound package, after removal from the bobbin, is washed with cold water for 24 hours, sized and dried without tension.
Patent GB-734354-A (GB)
Title: Improvements relating to axle-box assemblies for railway vehicles
Inventor: BINNEY ERIC ALTON
IPC: B61F5/32
Filed: 1952-09-19
Abstract: 734,354. Underframing of railway vehicles. ENGLISH ELECTRIC CO., Ltd. Dec. 18, 1953 [Sept. 19, 1952], No. 23567/52. Class 103 (6). An axle-box assembly for a railway vehicle comprises a cage member resiliently mounted on the vehicle frame for relative vertical movement, an axle-box resiliently mounted in the cage member for relative vertical movement, and transversely extending pivoted link means interconnecting the cage member and the vehicle frame for restraining relative transverse movement. In the construction shown in Figs. 1 and 2, the axle box 10 is slidably mounted in a cage 11, rubber pads 13 bonded to metal plates 14 being interposed between the axle box and the cage. The cage is slidably mounted between guide plates 16 attached to the bogie frame 17, and is formed with projecting lugs 19 carrying pivot pins 20 which are coupled by links 21 to pivot pins 22 on the frame. A resilient rubber bush 24 is fitted to each pivot pin. In the construction shown in Fig. 3, resilient pads 33, 34 are interposed between the axle box 30 and the cage 31. The cage is guided for vehicle movement by links 36 connecting pivot pins 37 on the cage to pivot pins 39 on the bogie frame 40. The cage is resiliently restrained against transverse movement relatively to the bogie frame by the provision of links 41 connecting pivot pins 42, 44 fitted with rubber bushes.
Patent GB-900640-A (GB)
Title: A process for the production of an antibiotic
Inventor: VIERLING KARL
Filed: 1958-07-23
Abstract: An antibiotic, which is cytostatic, is produced by the anaerobic fermentation of bacteria which are capable of forming propionic acid by the degradation of carbohydrates in a nutrient medium containing carbohydrates and having a pH of 6.8 to 7.2, the cultivation being continued for 3 to 5 days at a temperature of 20-40 DEG C. and thereafter isolating the antibiotic from the fermentation broth.  The broth is preferably clarified and extracted with an organic solvent such as ethyl ether, the antibiotic being recovered by evaporating the solvent in vacuo. Specified bacteria are Propionibacterium freudenreichii, Propionibacterium rubrum, Propionibacterium technicum and Clostridium propionicum.  The antibiotic may be used medicinally as a cytostatic or for the treatment of rumenatony in ruminants (see Group VI).ALSO:An oral or rectal preparation or injection comprises as an essential ingredient thereof the cytostatic substance isolated from a culture broth in which has been anaerobically fermented bacteria capable of forming propionic acid by the degradation of carbohydrates especially Propionibacterium freudenreichii, Propionibacterium rubrum, Propionibacterium technicum and Clastridium propionicum.  The culture medium may be used for the treatment of rumenatony in ruminants.  Sterile aqueous or aqueous alcoholic suspensions may be used for injection.
Patent GB-277356-A (GB)
Title: Improvements in or relating to the making of roads and the like from bitumen-coated mineral aggregates
IPC: C08L95/00
Filed: 1927-09-08
Abstract: 277,356. Colas Kalt-Asphalt Ges. Sept- 9, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts.] Emulsions, making.-Bituminous emulsions in which the proportion of saponifiable material or other reagent used as an emulsifier is relatively small, as in Specification 202,021, are rendered suitable for coating aggregate in the making of macadamized roads by adding an agent, such as glycerine or other multi-valent alcohol, a light mineral oil or a salt, which increases the viscosity of the emulsion and retards the tendency to disruption on meeting the aggregate. The retarding agent is added in the proportion of 5 per cent or less reckoned bv weight of bitumen. Specifications 230,177, 233,784, 236,641, 243,398, 252,260, and 268,411 are referred to.
Patent GB-461748-A (GB)
Title: Improvements in or relating to carburetters for internal combustion engines
IPC: F02M1/00
Filed: 1935-08-23
Abstract: 461,748. Spray carburetters. BROWN, C., and AMAL, Ltd. Aug. 23, 1935, No. 23679. [Class 7 (iii)] Liquid fuel is conducted from a float chamber the whole weight of which is supported by a ring or diaphragm, of rubber or other resilient material, connecting the chamber or an extension thereof, with the mixing chamber &c. to the mixing chamber by a flexible pipe and the ring or diaphragm is not brought into contact with the fuel. An annular diaphragm 6 gripped between a clamping ring 7 and a ring 2 integral with a float chamber 1 is supported by a mixing chamber 4 clamped to the inner edge of the annulus by a washer 9 and nut 5 and fuel is supplied to the mixing chamber through a flexible connection 11, its passage being out of contact with the diaphragm 6. In modifications, a ring of spongy rubber of much greater depth than the ring shown is disposed between a groove in the wall of the mixing chamber and a groove in a yoke integral with the float chamber, or the mixing chamber carries the outer fixed ring and the float chamber is mounted within the resilient ring. Specification 381,475 is referred to.
Patent GB-1425884-A (GB)
Title: Dock and wharf fender
IPC: E02B3/26
Filed: 1973-05-18
Abstract: 1425884 Marine fenders M KEDAR 18 May 1973 [26 May 1972] 23702/73 Heading B7S A dock or wharf fender comprises a scissorlike moving pair of levers 4a, 4b which are pivotally connected at ends 5 to a bumper beam 7. The other ends of the levers are connected in spaced relationship to each other to elongate member 1 fixed to dock wall B so that they slide along the member and act against rubber buffers 8 provided within or on the member. In the embodiment shown these other ends of the levers are connected to member 1 by pins 3 which engage in slots 2.
Patent GB-154755-A (GB)
Title: Improvements in or relating to apparatus for the burning of liquid fuel
IPC: F23C99/00
Filed: 1919-09-29
Abstract: 154,755. Clarkson, T. Sept. 29, 1919. Liquid-fuel furnaces.-In a furnace for steamgenerators having a combustion chamber of circular, oval, or similar form in plan, a solid firebrick or like flame deflector B is employed forming a projection from the fire-brick lining C, C<1>, and having a central angle B<1> from which the sides fall away in similar hollow curves B<2> so as to deflect a liquid-fuel spray introduced through the opening D'.
Patent GB-255271-A (GB)
Title: Improvements in or relating to hydraulic pumps
IPC: F04B47/02
Filed: 1925-09-25
Abstract: 255,271. Hathorn, Davey, & Co., Ltd., and Lupton, H. R. Sept. 25, 1925. Crank-actuated pumps; multiple-acting piston pumps.-In a three-throw pump the middle crank actuates the middle plunger in the opposite direction to the outer plungers by means of crossheads 4, 6 and side rods 5. The three cranks 1 are set 60‹ apart. The crank-shaft is driven by an electric motor 12 through gearing 9, 10.
Patent GB-1100989-A (GB)
Title: Precipitating blood from aqueous dispersions
Inventor: CHAMBERLAIN RALPH JOSEPH
IPC: C02F1/52
Filed: 1965-03-23
Abstract: Blood is precipitated from meat packaging waste stream by treatment with 1-10 parts of cyanamide or a sodium or calcium salt thereof per part of dry blood.
Patent GB-969812-A (GB)
Title: Catalytic process for the production of organic bases
Inventor: CORRAN JOHN ANTHONY
IPC: C07D471/22
Filed: 1962-06-22
Abstract: Organic bases, apparently corresponding to the molecular formula C15H27N3, are prepared by contacting a mixture of ammonia and tetrahydrofurfuryl alcohol with finely divided palladium as catalyst, at elevated temperature.  The palladium may be 0.04% by weight supported on alumina and the reaction temperature from 200 DEG  to 500 DEG C.  1 to 10 moles of ammonia are used per mole of tetrahydrofurfuryl alcohol and 1 to 10 moles of hydrogen may also be added to the mixture.  Isolation of the various tripiperideines is described.  Isotripiperideine may be further converted into 2:31-bipiperidyl, piperidine and 2:31-bipyridyl by hydrogenation.
Patent GB-1450632-A (GB)
Title: Process for tbe preparation of polyarylamines which contain methylene linkages
IPC: C08G12/00
Filed: 1974-05-31
Abstract: 1450632 Preparation of polyarylpolyamines E BILLER 31 May 1974 [1 June 1973 17 Sept 1973 29 April 1974] 24164/74 Heading C2C  Polyarylpolyamines are prepared in a multistage process by (a) reacting an aromatic amine which contains at least one hydrogen atom in the amine group and which must be unsubstituted in at least one of positions 2, 4 or 6 with an aliphatic aldehyde in the absence of a catalyst to form a precondensate; (b) removing at least some of the water after the reaction and (c) rearranging the precondensate in the presence of a catalyst which is an acid salt of the aromatic amine or of its condensation product with a saturated aliphatic aldehyde or a. mixture of saturated aliphatic aldehydes in a polar, water-soluble organic solvent, or in the presence of aqueous mineral acid or an aqueous acid salt of the aromatic amine and the catalyst used is either washed out with water and used again or neutralized with alkali. The examples describe the preparation of diaminodiphenylmethanes.
Patent GB-1094639-A (GB)
Title: A thin film surface wave mode dielectric waveguide
Inventor: KAO CHARLES KUEN
IPC: H01P5/18
Filed: 1966-05-31
Abstract: 1,094,639. Surface-wave lines. STANDARD TELEPHONES & CABLES Ltd. May 31, 1966, No. 24190/66. Heading H1W. [Also in Division G2] A coupler for thin-film surface-mode waveguides utilizes a solid dielectric spacer between spaced, parallel waveguides. The waveguides may be utilized in the optical and infra-red regions and consist of polycarbonate films 1, 2 of thickness within the range #/6 to #/60 (less than 0À1Á). They are normally in the form of strips mounted across the open side of troughs 1, 4 or 5. In the coupling region the lines lie parallel to each other over a distance I which is several orders of magnitude larger than the thickness of the films, e.g. 0À5 cm., and one of the troughs is omitted over a length comprising the coupling region. In order to achieve good bandwidth, the coupling coefficient, controlled by the spacing t, is required to be not greater than 10<SP>-4</SP> and this is determined by a spacer 6 made of a material whose dielectric constant is less than that of the waveguides, e.g. polymethylmethacrylate. This is affixed to the waveguides by first wetting the surfaces to be joined with a liquid which will not react with the surfaces (e.g. petroleum spirit) which is afterwards allowed to evaporate. The spacer may consist of several layers of different lengths with the smallest in the centre. These may be formed by deposition either from the vapour phase or from solution. In addition to the directional coupler shown, total couplers (Figs. 3, 4) may be made. These consist of terminal sections (9, 10 or 12, 13) of waveguides separated by dielectric spacers (11 or 14).
Patent GB-731648-A (GB)
Title: Door-closing device
IPC: E05F3/10
Filed: 1953-09-02
Abstract: 731,648. Door operating appliances. KELLER & KNAPPICH GES. Sept. 2, 1953 [Sept. 19, 1952; Jan. 31, 1953; Jan. 31, 1953], No. 24290/53. Class 65(1). In a door-closing device having a linkage arranged horizontally within the door and pivoted to the door post at a position offset from the door hinge axis, said linkage comprising a piston rod 10 connected to a check piston 9 provided with a passage 30 for unrestricted flow of checking fluid during opening of the door and a one-way valve 32 closing the passage during closing of the door, the door closing being effected by a spring 15 arranged in the fluid chamber 16, the piston rod is positively secured to the piston and carries a guide member 55 disposed externally of the chamber 16, a guide rod 11 being articulated to the member 55. The piston moves in a cylinder 45 and is pivotally connected by a pin 70 to the piston rod which passes through a stuffing box 19 and is secured to the guide member, the latter being supported in a guide tube 28. The guide member is pivotally connected by a pin 14 to one end of the guide rod, the other end of the latter being pivotally connected by a pin 13 to a bracket 12 fixed to the door post, pin 13 being offset from the hinge axis. The spring 15 is interposed between the stuffing box and a plate 71 secured to the piston rod. The cylinder is closed by a screwed plug 47 formed with passages 24, 25 controlled by a ball valve 46 for effecting a check action during door closing. Valve 46 abuts an adjusting rod 49 screwing into a bush 50 in plug 47, the rod being coupled to an extension member 75 the outer end of which is exposed at the outer edge of the door for manipulation by a spanner. Member 75 carries a pin 76 disposed in a segmental slot for limiting the extent of adjustment of valve 46, the latter being entirely closed when pin 76 lies at one end of said slot. During door opening, fluid flows freely past valve 32. During door closing, fluid flows past valve 46, through the passage 24, through an annular passage 23 between cylinder 45 and a surrounding tube 48, and through bores 34 back into the cylinder. A passage 74s in the piston co-operates with an internal enlargement 45 in the cylinder to neutralize the checking effect near the closed position of the door. The initial stress in the spring 15 is adjusted by screwing the plug 47 inwards or outwards. U.S.A. Specification 1,176,802 is referred to.