baber/WOPTO huggingface dataset:
Patent GB-138573-A (GB)
Title: Improvements relating to the supply of air to the grates of automatically stoked furnaces
IPC: F23H11/10
Filed: 1919-09-29
Abstract: 138,573. Yarrow, H. E. Sept. 29, 1919, Air supply, regulating.-In a travelling or other furnace grate C in which the fuel travels from one end to the other of the grate, cold air is supplied to the section above which combustion is most intense, e.g. the central section E, and hot air to the other sections. The partitions separating the respective air supplies may be vertical or, as indicated in dotted lines, of truncated conical form, the portions between the upper and lower rims of the grate being of plate and those below of plate or of brickwork.
Patent GB-937304-A (GB)
Title: Improvements in and relating to the manufacture of ammonium sulphate
Inventor: KAY ERIC
IPC: C01C1/244
Filed: 1960-07-08
Abstract: In the production of ammonium sulphate by reacting together ammonia, carbon dioxide and calcium sulphate, the separation of calcium carbonate and other insoluble products is facilitated by adding water soluble polymers.  These are selected from (a) partially hydrolysed high molecular weight polyacrylamides (characterized in 0,5% aqueous solution by a viscosity of at least about 4 centiposes at pH 3-3,5 at 21,5 DEG C.), being substantially free of crosslinking, and having from about 10% of the amide groups replaced by carboxyl groups: such polymers are described in Specification 760,653; and (b) water-soluble grafted polymers produced by polymerizing a monomeric ethylenically unsaturated compound (characterized by the structure <FORM:0937304/III/1> wherein X is a hydrogen atom or an alkyl group containing not more than 2 carbon atoms, and Y is a carboxylic amide group or nitrile group), in the presence of a water-soluble preformed polymeric substance containing a C-H bond, having a molecular weight greater than 1,000.  The amount of water-soluble preformed polymeric substances present in the water-soluble grafted polymers is between 5% and 50% by weight.  Examples of water-soluble preformed polymeric substances used are polyvinyl alcohol, polyethylene oxide, polyvinyl pyridene, polyacrylic and polymethacrylic acids and their amides, starches, dextrins, starch ethers and cellulose esters.  Such grafted polymers are described in Specification 871,192.  The polymer may be added to the ammonium sulphate mixture (a) when the whole of the insoluble by-products are present and/or (b) when it has been freed of a substantial part of the insoluble matter.  It is preferred to add the polymer as an aqueous solution or suspension.  The reaction mixture may have a pH of 6 to 10 and a temperature of 50 DEG C. to the boiling point. The quantity of polymer may vary from 2-250 parts per million by weight.  Specific examples refer to the use of a high molecular weight acrylamide/acrylic acid copolymer and an acrylamide/maize starch dextrin graft copolymer.  Specifications 761,021 and 888,031 also are referred to.
Patent GB-1441727-A (GB)
Title: Apparatus for scoring glass sheets
IPC: C03B33/10
Filed: 1974-05-30
Abstract: 1441727 Glass cutting CENTRAL GLASS CO Ltd 30 May 1974 [31 May 1973] 24019/74 Heading C1M Apparatus for scoring a moving glass sheet 1 comprises a pair of cutters each mounted on a cutter head 6, 6<SP>1</SP>; a pair of parallel guide rails 55<SP>1</SP> adapted to extend over the glass sheet 1, one cutter head being capable of reciprocal motion along each rail so that the cutters move simultaneously but in opposite directions along their respective rails. The cutters are lowered on to the glass during a forward scoring stroke and raised for the return stroke. Cams 9, 9<SP>1</SP>; 10, 10<SP>1</SP> are provided to bring about the required vertical movement.
Patent GB-496154-A (GB)
Title: Improvements in or relating to frequency mixing circuit arrangements
IPC: B08B9/28
Filed: 1937-09-02
Abstract: 496,154. Valve circuits ; thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 2, 1937, No. 24030. Convention date, Dec. 1, 1936. [Classes 39 (i) and 40 (v)] A radio frequency mixing circuit for producing a sum or difference frequency comprises two valves fed in phase quadrature so that any interfering frequency is balanced out for the output. Fig. 1 shows pentagrid frequency changing valves V1, V2. Thesignalis applied to grids 4, 9 in quadrature and local oscillations to the grids 1, 6 in quadrature and the output at the intermediate frequency is taken from the anodes in parallel. Elimination of interference is effected by adjusting the relative outputs of the valves V1, V2 by adjustment of resistances 15 .. 18 or of the bias applied at the points 13, 14. Phase quadrature voltages from the input may alternatively be obtained by wholly aperiodic circuits, Figs. 3a, 3b (not shown), or by a tuned circuit with a resistance between the inductance and earth, Fig. 4 (not shown). Fig. 5 shows an arrangement with a push-pull output in which reaction is obtained from a coil 19 in the cathode return circuit to compensate for the damping produced by resistance 15. The local oscillator may be connected to the valves in push-pull in which case the outputs are combined in phase quadrature, Fig. 6 (not shown). The resistance in the phase splitting signal input circuit may be altered with wavelength by using a variable resistance gangcontrolled with the tuning, Fig. 7 (not shown). Alternatively the phase splitting resistance may be gang-controlled with a resistance controlling the amplification of the triode portion of the valve V2, Fig. 8, and so the tuning of the circuit L2, C2. A copper oxide second detector may be employed and the valves V1, V2 may be combined in a single envelope. Fig. 9a shows a valve construction for a triodedouble-hexode with the oscillator grid LOG connected to both the grids of both the hexodes. In a modification the local oscillator grid is connected to the grid of only one of the hexodes, Fig. 9b (not shown). The arrangement may be used for single sideband modulation in transmission or for the reception of a single sideband, the carrier being supplied by a driven oscillator. The loss to the desired signal by the balancing process may be obviated by using an intermediate frequency equal to the sum of the signal and local oscillator frequency.
Patent GB-1515455-A (GB)
Title: Fabric
IPC: D04H1/492
Filed: 1976-06-10
Abstract: 1515455 Non-woven fabric KURARAY CO Ltd 10 June 1976 24114/76 Heading D1R A non-woven fabric of honeycomb-like structure comprising two layers in a doublelayer structure, each layer consisting of series of crossing fibre bundles, in which each cross-point of fibre bundles in each layer exists in an area defined and enclosed by fibre bundles in the other layer and the fibre forming the fibre bundles in one layer is partially interlocked with the fibre forming the fibre bundles in the other layer is made by treating a web of fibre with a stream or spray of fluid as the web is disposed with one face facing the fluid on a first apertured supporting element to arrange the fibres into bundles in a layer and treating the same web with a stream or spray of fluid as the web is disposed with its other face facing the fluid or a second apertured supporting element having a line density higher than that of the first element to further arrange the fibres to form fibre bundles in another layer. The web of fibres may be formed of random webbed polyester and/or fibres.
Patent GB-300193-A (GB)
Title: Improvements in or relating to high pressure reciprocating compressors
IPC: F04B9/113
Filed: 1928-08-22
Abstract: 300,193. Sulzer FrÞres Soc. Anon. Nov. 8. 1927, [Convention date]. Actuating pumps by fluid pressure motors ; regulating compression.-A high-pressure reciprocating compressor in which power is transmitted from the piston 7 of the driving machine through an oscillating column of liquid to an intermediate piston 13 which actuates the compressor piston is provided with means for rendering inoperative a portion of the liquid column to vary the length of the compressor piston stroke without changing its midpoint. Fig. 1 shows a stepped driving piston with a liquid column in four parts 2 - - 5 acted upon by the large or small ends of the piston and communicating through valved pipes 8, 9 with the ends of the intermediate cylinder. By closing one set of valves, and opening a corresponding bye-pass valve 23, 26, the stroke is varied. In a modification, Fig. 4, the intermediate piston is stepped, and a simple driving piston is used, the ends of the driving cylinder communicating through valved pipes 32, 33 with the separate intermediate liquid spaces, which are connected by valved bye-passes as shown. In a further modification, both the intermediate and driving pistons are stepped.
Patent GB-1066002-A (GB)
Title: Improvements relating to musical instruments
IPC: G10D11/02
Filed: 1965-06-08
Abstract: 1,066,002. Keyboards. P. S. PROLL. June 8, 1965 [July 10, 1964], No. 24164/65. Heading G5J. In a keyboard assembly 19 for e.g. a reed organ, depression of a key 11 moves a pair of stops 12, 13 integral with the key, to uncover a corresponding pair of air-holes (not shown) and on release of the key, a spring 15, integral with the key and stops, restores the stops to their original position. The top ends of the springs 15 are fixed to a bar 17 which is attached to the support for the keyboard assembly and the assembly may be located on the support by dummy " sharp " keys fitting into the spaces between the keys 11. The assembly may be of metal but is preferably of moulded plastic, the dimensions of the spring 15 being such that it is relatively resilient and those of the stops 12, 13 and the key 11 such that they are relatively rigid. In alternative embodiments of the assembly incorporating an integral key, stop and spring, there may be a pair of springs and a single stop associated with each key, or the spring may be fixed under the key 11, or the springs may be in the form of semi-circular arcs connecting the tops of the stops as in Fig. 3 (not shown). In Fig. 5 (not shown) the springs form an extension from the top of the stops to the bar 17.
Patent GB-689654-A (GB)
Title: Improvements in carburetors and accelerating pumps therefor
Inventor: HENNING OTTO
IPC: F02M7/093
Filed: 1950-10-03
Abstract: 689,654. Spray carburetters. CARTER CARBURETOR CORPORATION. Oct. 3, 1950, No. 24165/50. Class 7 (iii). A carburetter comprises a mixture conduit, a fuel supply chamber and an accelerating pump comprising a pressure chamber having a movable wall, yielding means for urging the wall .in the discharging direction, means to move the wall in the charging direction and a dashpot device having a movable element operatively connected to the pump movable wall for affecting the movement thereof, a fluid connection for the dashpot chamber, an apertured check valve in the connection and opposing valve seats suitably spaced apart whereby initial movement of the pump wall during transfer of the check valve between the seats is substantially free of the restraining influence of the dashpot. In the Figure a dashpot comprising a cylinder 30 and a fixed plunger 35 co-operates with an accelerating pump the cylinder as shown being fixed to the diaphragm 19 of the pump. The dashpot also includes an apertured non-return valve 39. During the initial part of the pump discharge stroke liquid can pass freely and the dashpot does not act but when the valve contacts the end of the plunger fuel can flow only through the central aperture 41 and thus the movement of the pump diaphragm is retarded. During the charging stroke of the pump liquid can pass freely into the dashpot through the apertures in the valve. The pump is operated by engine induction pipe pressures transmitted to it by means of a passage 32 which terminates in a port 33 adjacent to the throttle valve 9. Idling fuel enters through a port 16. In a modification the diaphragm 19 may be replaced by a piston. The dashpot parts may be reversed so that the plunger moves with the pump diaphragm or piston. In the lower part of the fuel bowl there is a mainmetering orifice 11 controlled by a metering rod 12 which is operated by a diaphragm contained in a housing 13.
Patent GB-1037573-A (GB)
Title: Improvements relating to apparatus for contacting liquids
Inventor: COLEBY JOHN
IPC: B01F15/00
Filed: 1964-06-11
Abstract: 1,037,573. Liquid-liquid contacting rotors. R. GRAESSER Ltd. July 14,1965 [June 11,1964], No. 24233/64. Heading B1F. A rotor for use in a horizontal cylindrical casing to which non-miscible or partly miscible liquids may be admitted to effect extraction, comprises a number of discs (3) threaded on to rods (6) parallel to the axis and receptacles (strips 8) arranged between said discs and opening in the direction of rotation, said receptacles being clamped between the discs and externally supported by the rods. Fig. 3 shows in detail the mode of support of a receptacle, and the apparatus is of a generally similar kind to that described and claimed in Specification 972,035. If desired each strip may be welded to an adjacent disc or to the discs on each side in the latter case the rods may be omitted.
Patent GB-404079-A (GB)
Title: Improvements in apparatus for bundling or securing wires round packages
IPC: B65B13/14
Filed: 1932-09-02
Abstract: 404,079. Twisting wires together. COTCHETT, J. G., 160, Cromwell Road, Earl's Court, London.-(Wright, I. B.; 1517, 34th Street, Seattle, Washington, U.S.A.) Sept. 2, 1932, No. 24438. [Class 83 (iv).] The apparatus disposes wires round packages, secures the overlapping ends by twisting, severs the wire, and discharges the package on to a delivery band. The wire twisting mechanisms 105, 106, Fig. 6, act upon the same general principle as that described in Specification 154,132, [Class 83 (iv), Metals, Working], and consist in effect, of two such mechanisms in juxtaposition. The mechanisms are mounted on arms 139 adapted to be swung into operative position when the package and wires are in the position shown in Fig. 18. The mechanism comprises pinions 107, 108, Fig. 17, meshing with slotted pinions 109, 110 to form the double twist shown. Movement is transmitted to the pinions by shafts 98, 103 and bevel gearing. Cutters 116, 117 sever the wire, a tucker bar 118 mounted on the cutter 117 forcing the upper strand of the wire 75 on the arm 71, Fig. 18, into a clip 66 on the arm 60. At the same time the severed end of waste wire is forced out. When the twisting and severing is complete, a cam allows the table 43 to sink further so that it is turned about a hinge 42 by an abutment and delivers the package on to rollers 142, over which it passes to a delivery band. The arms 60, 61, 71, 72 return to their initial position, and, as the leading end of the wire is now held by the clip 66, it is disposed in the slots 46, 47 in readiness for another operation.
Patent GB-635762-A (GB)
Title: Improvements in or relating to rotary shaft seals
IPC: F16J15/38
Filed: 1946-08-16
Abstract: 635,762. Seal for rotary shafts. HOUDAILLE - HERSHEY CORPORATION. Aug. 16, 1946, No. 24443. Convention date, Dec. 29, 1945. [Class 122(v)] A seal for a, rotating shaft 11 passing through a fixed casing 12 comprises a resilient packing element 10 forced on the shaft 11 in sealing engagement therewith and having a frusto-conical sealing surface 17 engaging a similar surface 18 on a cap 14 secured to the casing 12. A plate 23 is pressed on the packing element 10 by a spring 24 the other end of which engages a plate 27 which bears on a ring 28 held in a groove 29 in the shaft 11. In a modification the cap 14 is replaced by a disc held in place by a screwed ring. In a further modification the cap is replaced by a cup-shaped member fitted into the casing 12.
Patent GB-208212-A (GB)
Title: An improved method of and apparatus for freeing gripped pipe-or tube-columns in oil,gas or water wells
IPC: E21B31/107
Filed: 1922-09-11
Abstract: 208,212. Streda, J., Gillespie, G. J., and Bence, E. H. Sept. 11, 1922. Bore-hole apparatus and processes.-In well-boring, jammed pipe columns are released by simultaneously applying continuous downward pressure and percussion; a space is first formed below the column, and, further, the column may be filled with liquid such as crude oil or a suspension of clay in water. Pressure is applied by hydraulic jacks 29 bearing against joists 40 carried by the derrick platform 21, the jacks being carried by beams 34, 35 bolted to a tube 10 secured to the column 8 to be released; the beams may be replaced by a dog secured to the pipe 10 by wedges. Links 38 may connect the beams 34, 35 to the top of the tube 10. Percussion is applied by a collar 20 fixed to a drill rod connected to a cable 16. Spring buffers 33 support the released column bv engaging a collar 14.
Patent GB-863778-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J75/00
Filed: 1957-08-02
Abstract: The invention comprises a steroid compound having the formula: <FORM:0863778/IV (b)/1> wherein R is an alkyl or aryl radical and R1 is a hydroxy or keto group and a process for the preparation thereof, which comprises dehalogenating the corresponding 6-alkyl or 6-aryl-21-iodo-pregnene to obtain 6-methyl-11b , 17a -dihydroxy-4-pregnene-3, 20-dione and if desired oxidising the 11-hydroxy group if present to an 11-keto group.  The dehalogenation may be effected by a reducing agent such as zinc dust and acetic acid, sodium or potassium thiosulphate or sodium bisulphite.  In preparing the 21-iodo compound 6-methyl hydrocortisone is treated with an acid halide of an organic sulphonic acid such as methanesulphonic acid, ethanesulphonic acid, propanesulphonic acid, benzenesulphonic acid, p-toluenesulphonic acid, and a - or b -naphthanesulphonic acids, in a solvent to produce a 6-methyl-11b , 17a , 21-trihydroxy-4-pregnene-3, 20-dione 21-alkyl or arylsulphonate, which is reacted directly with sodium or potassium iodide in alkanone solution.  In the iodination step a molar excess of sodium iodide is preferred.  The 6-methyl-11b , 17a -dihydroxy-4-pregnene-3, 20-dione may be oxidised to the corresponding 6-methyl-17a -hydroxy-4-pregnene-3, 11, 20-trione in acetic acid solution with chromic anhydride or with a halo amide or imide of an acid e.g. n-bromoacetamide, n-chlorosuccimide or n-bromosuccimide.  Examples describe the preparation of 6a -methyl-11b , 17a -dihydroxy-4-pregnene-3, 20-dione, 6a -methyl-17a -hydroxy-4-pregnene-3, 11, 20-trione and other 6-substituted steroids.  Specifications 863,777 and 863,779 are referred to.ALSO:Steroid compounds having the formula <FORM:0863778/VI/1> wherein R is an alkyl or aryl radical and R1 is a hydroxy or keto group, are employed in oral, parenteral and topical compositions. The topical compositions may take the form of ointments, lotions, jellies, creams, suppositories, bougies, and aqueous suspensions.  A dermatological and ophthalmic ointment incorporating 6a -methyl - 11b ,17a  - dihydroxy - 4 - pregnene - 3,20-dione may also contain antibiotics such as neomycin sulphate, bacitracin, circulin, polymyxin B sulphate, gramicidin, streptomycin sulphate, dihydrostreptomycin sulphate, oxytetracycline, chlorotetracycline, tetracycline, and chloramphenicol, and the sulphonamides. Specifications 863,777 and 863,779 are referred to.
Patent GB-1010788-A (GB)
Title: Improved geophysical prospecting method and apparatus
IPC: G01V1/145
Filed: 1963-06-20
Abstract: 1,010,788. Seismic prospecting. GENERAL DYNAMICS CORPORATION. June 20, 1963 [June 25, 1962], No. 24646/63. Heading H4D. Seismic waves are generated in the earth by applying a time varying force to the interlink between two linked anchors secured in or on the earth. In one embodiment (Figs. 1, 2 and 3) one of the anchors 12 which is positioned in a bore-hole 14, comprises a pair of part cylindrical plates 18, 20 urged apart by a plurality of hydraulic cylinder-piston combinations 24 supplied with fluid under pressure via a supply pipe 36 and inlet valve arrangement 38. The plates 18, 20 which thus grip the bore-hole firmly, are connected via an interlink 10 with a second anchor comprising an hydraulic ram 66 including a cylinder-piston arrangement to which fluid under pressure is supplied via supply pipe 86 from a source including a pump 100, check valve 102, pressure relief valve 104 and accumulator 106 under the control of a solenoid operated four-way two-position valve 88 the unused port of which is blocked by a plug 90. The valve 88 is operated to cause ram 66 to produce, repetitively, a tension in the link 10 followed by a rapid removal of such tension, so that, as the strain in the ground is applied and relieved, a seismic wave is radiated by a plate 44 clamped to the base of the ram and also, although to a lesser extent, by the lower anchor 12. The seismic waves produced by the two anchors are of opposite phase and by making the distance between the anchors equal to one half wavelength the waves may be made to add. The operation of valve 88 may be programmed to generate any desired sequence of waves such as gated continuous wave train having a single frequency or a frequency modulated wave may be produced. To facilitate insertion and removal of the anchor 12 the elements 18, 20 of the latter are coupled by a plurality of light tension springs 42. Alternatively a vacuum may be applied to the hydraulic system to retract the plates or double acting cylinders may be employed and the plates retracted by fluid pressure. Fig. 4 shows a second embodiment in which the upper and lower anchors each comprise an arrangement similar to anchor 12 of Fig. 1, the time-varying force being supplied by a doubleacting hydraulic cylinder 120.
Patent GB-689096-A (GB)
Title: Improvements in or relating to pleated cup-like containers and lids
IPC: B65D1/26
Filed: 1949-09-26
Abstract: 689,096. Pleated cups &c. BRUUN, O. J. Aug. 14, 1950 [Sept. 26, 1949], No. 24654/49. Class 66 A cup 1 of paper or of metal foil, e.g. of aluminium or tinplate has pleated sides, and a plain base 2. A lid 4 is secured by clamping a U-shaped flange 3 to the rim of the cup.
Patent GB-1189254-A (GB)
Title: Mechanical Table Football Game
Inventor: MIEG PETER
IPC: A63F7/06
Filed: 1968-05-23
Abstract: 1,189,254. Mechanical table football game. EDWIN MIEG K.G. 23 May, 1968, No. 24718/68. Heading A6H.  A mechanical table football game, consisting of a playing field, 1, which is inclined gently downward from the half-way line of the playing field towards each of the goals 2, 2' and is laterally delimited by means of barriers, 3, having stationary, 17, and mechanically movable, 8, 15, figures representing footballers, and a football, comprises flip or recoil levers 4, 5 and 4', 5', mounted on each side of the playing field and which serve to strike the ball, said flip or recoil levers each being connected to at least one movable figure, and in which a figure representing a goal-keeper 11, 11' is movable from side to side in front of the goal by means of said flip or recoil levers. The figures illustrate two embodiments of the flip or recoil levers. The flip or recoil levers 4, 5 comprise an arm located above the playing field at which strikes the ball, and an arm below the playing field which is articulated with the push rod which serves to displace the movable figure, .8, along a slot 7. The flip or recoil levers 4', 5' are articulated with the push rod of the movable figure by way of pin which is attached to the free end of the lever and which extends through a slot 7' in the playing field. The figure represents the goalkeeper, 11, 11', may be provided on the free end of a pivot lever, 13, 13' (Fig. 3) which lies below the playing field, this pivot lever being provided with two guide rails, 13a, 13a', which include an angle between themselves and the pivot lever so that the figure 11, 11' is only shifted after one of the two flip or recoil levers has executed a predetermined degree of movement. Fig. 3 shows two embodiments of the guide rails and pivot lever. (For Figures see next .column)