baber/WOPTO huggingface dataset:
Patent GB-718757-A (GB)
Title: Improvements in or relating to cyclone furnaces and to the burning of low grade fuel
IPC: F23C3/00
Filed: 1952-10-22
Abstract: 718,757. Pulverent-fuel cyclone furnaces. BABCOCK & WILCOX, Ltd. Oct. 22, 1952 [Oct. 23, 1951], No..26497/52. Class 51 (1) A pulverulent-fuel cyclone furnace has fuel and air inlets 24 in a rear zone of the furnace chamber and inlets 23 which supply air and fuel to an intermediate zone of the chamber, different fuels being supplied to the two sets of inlets. In operation, low-grade fuel is supplied to the inlets 23 and high-grade fuel to the inlets 24.
Patent GB-350334-A (GB)
Title: Improvements in or relating to clutches suitable for variable-speed gearing
IPC: F16D23/06
Filed: 1930-09-05
Abstract: 350,334. Clutches ; variable-speed gearing. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(General Motors Corporation; Detroit, Michigan, U.S.A.) Sept. 5, 1930, No. 26525. [Class 80 (ii).] In a synchronized positive clutch with friction clutch members 97, 98, Fig. 1, associated with the claw members 86, 85 to be enmeshed, friction member or drum 97 has a rotary lost-motion driving connection with its claw member 86 which imparts an axial movement to the drum 97 pressing it firmly into frictional engagement to ensure synchronism. Cams 104, 105, Fig. 3. convert the rotary motion into axial movement. The clutch shown is for connecting the driven shaft 72 of a vehicle change-speed gear to driving-shaft 71, claw members 86, 85 being splined and fixed to these shafts respectively. Claw member 90 is for obtaining another speed, a yoke 60 moving the doubleended clutch. Male friction member 98 is fast on shaft 71. Friction drum 97 is capable of limited rotary displacement upon a boss 100 on shaft 72. Drum 97 carries a bronze female cone 95 and is formed with radial sloping spokes 102, Fig. 2, connecting to a central flat flange 99. The teeth of claw member 86 are in groups 88, Fig. 3, which pass between the spokes 102 to engage internal teeth of member 85. When the clutch is to be engaged, the engine clutch is disengaged so that the only rotary force is inertia due to asynchronous rotation. When claw member 86 is advanced towards engagement, inclines or detents 103 on the ends of the tooth groups 88 strike detents 103a on the spokes 102, as shown in Fig. 3, and the advance stops. Drum 97 tends to turn relatively to shaft 72 and to a collar 101 upon it in virtue of the lost motion. Cams 105 on the flat part 99 of the drum ride up on cams 104 on the collar 101 so as to press drum 97 firmly over male friction member 85 so as to synchronize the parts. The tooth groups 88 then slip past the spokes 102 into positive engagement with clutch 85. This movement causes spokes 102 to pass into spaces 94 between the tooth groups 88, and this causes drum 97 to be turned back by spring 107 into a loose disengaged position. The disengagement is slight, the friction clutch surfaces riding on an oil film between them.
Patent GB-1219470-A (GB)
Title: Stabilized polymeric amines
Inventor: RINEHEART CLARENCE
IPC: C08K3/30
Filed: 1968-06-04
Abstract: 1,219,470. Polymeric amines. DOW CHEMICAL CO. 4 June, 1968, No. 26571/68. Heading C3R. Polymeric amines comprising polyalkylene polyamines and alkylenimine polymers are stabilized by adding sulphite and/or bisulphite ions in an amount of at least 0À1% by weight of the polymeric amine. The ions may be provided by adding sulphur dioxide, sulphurous acid or an alkali metal, alkaline earth metal or ammonium sulphite or bisulphite. The polymeric amines may be in aqueous solution. In examples, sodium, potassium, ammonium, magnesium and calcium sulphites and bisulphites, sulphur dioxide and sulphurous acid, are added to polyalkylene polyamines obtained by condensing diethylenetriamine with 1,2-dichloroethane, and a polyethyleneimine condensed with epichlorohydrin.
Patent GB-510646-A (GB)
Title: Clutch and brake control mechanism
Filed: 1938-09-12
Abstract: 510,646. Hydraulic brakes; controlling motor vehicles. FREEMAN, W. R. Sept. 12, 1938, No. 26592. [Class 103 (i)] [Also in Group XXXI] In motor vehicle brakes which are held applied when the vehicle clutch is disengaged the brakes are released by a connection to the clutch-operating mechanism which moves with the clutch pedal after the clutch is engaged. In Fig. 1 the clutch pedal 23 and the lever 26 controlling a valve 7 preventing release of the brakes are connected to opposite ends of a floating lever 24 and the lever 29 for disengaging the clutch 30 is connected to an intermediate point. A spring 38 weaker than the clutch springs is arranged between a stop 36 and an abutment 37 on the rod 27 connecting levers 24, 26. When the clutch pedal 23 is depressed to disengage the clutch the spring 38 yields first, the lever 24 pivots about the end of the link 28 and the valve 7 which is a ball check valve similar to one described in Specification 472,628 is allowed to close, so as to be in a position to maintain the brakes applied. Further movement of the clutch pedal disengages the clutch when the engagement of abutments 36, 37 stops the rod 27. On release of the clutch pedal, the clutch is first engaged and then the valve 7. lifted. Thus the brakes may always be maintained applied, when the clutch is disengaged. In a modification the valve 7 is operated by a vacuum servo-motor controlled by a valve arranged in the transmission between the clutch pedal and the clutch and controlled by a spring weaker than the clutch spring so that the valve is opened to operate the servo-motor and the valve before the clutch is disengaged. The exhaust of the servo-motor takes place along a slot in the valve stem adapted to be closed by a shoulder on the stem. In a further modification the valve is formed with a bye-pass adapted to be closed by the stem of a piston operated by a floating lever in the transmission between the clutch pedal and the clutch. The return spring of the piston is weaker than the clutch springs.
Patent GB-1084594-A (GB)
Title: Polymeric compositions having improved gloss
IPC: C08L25/12
Filed: 1965-06-23
Abstract: Polymer blends are made containing (A) a diene rubber/monovinylidene aromatic hydrocarbon-unsaturated nitrile copolymer blend of the type in which at least part of the copolymer has been made by polymerizing the monomers in the presence of the rubber, and (B) as an agent for improving the gloss of mouldings produced from the blend, 0.2-10% by weight of the blend of a polyalkylene glycol of molecular weight of 300-3000 or an alkyl ether or alkanoic ester thereof in which the alkyl or alkanoic group contains 1-20 carbon atoms. The examples describe blends in which: (i) the diene rubbers are polybutadiene and butadiene-styrene-ethylene dimethacrylate and butadiene styrene-acrylonitrile copolymers, (ii) the monomers polymerized with the rubbers are styrene-acrylonitrile, styrene-methacrylonitrile-dibutyl fumarate and styrene - alphamethylstyrene-acrylonitrile mixtures, and (iii) the gloss-improving agents are polyethylene glycol 550, 1000, 1450 and 2050 and the monomethoxy, dibutoxy, monolauroxy, diacetate, distearate and monopalmitate derivatives thereof.
Patent GB-837784-A (GB)
Title: Improvements in or relating to power driven door operating mechanisms
Inventor: STRETTON HENRY JACKSON
IPC: E05F15/14
Filed: 1957-08-23
Abstract: 837,784. Electromagnetically - controlled brakes. PETERS & CO. Ltd., G. D. Aug. 13, 1958 [Aug. 23, 1957], No. 26642/57. Class 103 (1). [Also in Group XXV] A brake for an electric motor associated with a sliding vehicle door operating mechanism (see Group XXV), comprises a disc 7 splined to the motor shaft 2 and pressed against a plate 10 by an armature 13 acted on by a spring 16. A solenoid 12 is. energized with the motor and holds the armature away from plate 10 against the action of the spring 16. The brake may also be released by manual rotation of shaft 18 threaded into sleeve 23 which is flanged at 24 to engage a flange 25 on the armature 13.
Patent GB-1057883-A (GB)
Title: Improvements in or relating to antibiotics
Inventor: BARKER MICHAEL DEREK
IPC: C07D501/38
Filed: 1962-07-11
Abstract: Compounds of the general formula <FORM:1057883/C2/1> (in which R2 and R3 are each hydrogen atoms or R2 is a hydrogen atom and R3 is an acyl group or a triaryl substituted alkyl group or R2 and R3 together form a divalent acyl group derived from a dicarboxylic acid), and salts thereof, may be prepared by a process which comprises reducing a compound of the general formula <FORM:1057883/C2/2> particularly by catalytic hydrogenation using a precious metal catalyst such as platinum or palladium.  Examples describe the preparation of a number of such compounds such as 3-amino - 7 - phenylacetamido -, 31 - amino - 7 - (5 - benzyl - mercapto) - acetamido -, 31 - amino - 7 - n - pentanamido -, 31 - amino - 7 - (211 - thienyl) - acetamido- and 31-amino-7-(411-methoxyphenyl) - acetamido - cephalosporanic acids. The above products may be converted to compounds of the formula <FORM:1057883/C2/3> (where R3 has the meaning defined above but is not a hydrogen atom and R4 is an acyl group which may or may not be the same as R3) by acylation or to compounds of the general formula <FORM:1057883/C2/4> (in which X is an oxygen or sulphur atom and R7 is an aliphatic, aryl or araliphatic group) by reaction with a substituted isocyanate or isothiocyanate. Examples of the two latter types of compound are 31-acetamido-7-phenylacetamido-, 31-7-bisphenyl-acetamido-, 31-p-toluenesulphonamido - 7 - phenylacetamido- and 31 - n - butylthiourylene - 7 - phenylacetamido -cephalosporanic acids.  The azide starting materials may be prepared as described ni Specification 1,012,943 and include 31-azido-7 -(211-thienylacetamido)-, 31-azido-7-p-methoxyphenylacetamido-, 31-azido-7-methylthioacetamido-, 31 - azido - 7 - ethylthioacetamido- and 31 - azido - 7 - isopropylthioacetamido - cephalosporanic acids.
Patent GB-940848-A (GB)
Title: Improvements in and relating to electrical control circuits
IPC: H02P29/00
Filed: 1961-07-24
Abstract: 940,848. Automatic speed control. LOUIS ALLIS CO. July 24, 1961 [Aug. 25,19601, No. 26701/61. Heading G3R. [Also in Division H3] In an automatic speed control system a signal proportional to the speed of a rotating shaft is derived from a tacho-generator 2 and is applied over a high impedance 26 to a transistor amplifier in opposition to a reference signal derived from a source 8 and an adjustable high impedance 10. The amplifier comprises a transistor 4 with a diode 12 connected across its base and emitter, the arrangement being such that the diode 12 is conducting when the transistor 4 is non-conducting whereby the amplifier presents a low impedance in both directions to the input control signals. In operation, any difference between the actual speed of the shaft and a desired speed,selected by adjustment of impedance 10, produces a control signal which causes transistor 4 to become conductive whereby a further amplifying transistor 6 also conducts so that a control current flows in the control winding 15 of a magnetic amplifier 14 in the field circuit 24 of a generator supplying the armature of a D. C. shunt wound motor driving the shaft. When the actual and desired speeds coincide the net input signal to the amplifier is zero and transistor 4 becomes non-conducting. The field coil 24 may be that of an eddy current clutch extending between a constant speed motor and a driven shaft. It is stated that the provision of the diode 12, with its consequent effect upon the impedance of the amplifier, enables a plurality of high impedance circuits, which will be entirely independent of one another, to be connected across the points 1 and 2; the independent circuits in the embodiment described comprise the reference signal circuit and the speed signal circuit.
Patent GB-793570-A (GB)
Title: Process for the manufacture of photographic materials
Inventor: AMBLER ARNOLD EDWIN
IPC: G03C1/04
Filed: 1955-09-19
Abstract: 793,570. Photographic sensitive materials. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 19, 1956 [Sept. 19, 1955], No. 26705/55. Class 98(2) An aqueous gelatine or gelatino-substitute silver-halide emulsion is dispersed in a solution of a water-insoluble water-permeable cellulose ether in an incompletely water-miscible solvent, in the manner of Specifications, 718,404 and 750,201, the dispersed particles of emulsion are converted to a solid form as by removal of water, action of hardening agents, or by cooling, the incompletely water-miscible solvent is wholly or partly removed, and the resulting emulsion/cellulose ether particles are dispersed in a water-insoluble water-permeable binder in a volatile organic solvent to give a composition which is coated as by high speed coating methods on to a substratum to form a rapid-drying-sensitive layer. Production of both multilayer and mixed grain colour former materials for colour photography by this method is briefly described but an example is directed to black and white procedure, thus a molten aqueous gelatino-silver bromoiodide emulsion is emulsified into a toluene solution of ethyl cellulose, anhydrous sodium sulphate is stirred in at 35 ‹C.- 40‹C., the mixture settled and the upper layer of partly dehydrated emulison in the toluene solution of ethyl cellulose is decanted, a petroleum fraction is stirred in and decanted from the pecipitated gel and the latter is further washed similarly, partially dried at room temperature, and dispersed in binder constituted by a methyl methacrylate/methacrylic acid copolymer, the preparation of which is described, in solution in a methanol/toluene/n-propanol mixture. This final product is coated on to a paper base which has been subbed with a layer of ethyl cellulose and the coated layer exposed through a negative and processed normally. Numerous other solvents and binders having the specified properties are quoted and a test for water-permeability of the binders is described.
Patent GB-1281490-A (GB)
Title: Record card handling device
IPC: G06K13/08
Filed: 1970-06-03
Abstract: 1281490 Feeding and delivering sheets INTERNATIONAL BUSINESS MACHINES CORP 3 June 1970 [10 June 1969] 26719/70 Heading B8R A record card handling apparatus comprises a plate 13, Figs. 1 and 2, over which a card is moved under a transducer 49 for reading information on the card, a hopper 15 for a supply pile of cards, a hopper 17 for stacking cards, and a device 19 including a throat 65 into which a card can be manually introduced for feeding on to the plate 13, or through which a card can be ejected. The apparatus is controlled by electronic circuits (Fig. 3, not shown). When a card is to be fed from the hopper 15, a roller 23 having a further surface segment 25 is rotated to separate a card from the bottom of a pile 99, and the card is fed by rollers 29, 30 between guides 31, 32 and over a gate 21 on to the plate 13, when it is sensed by a photosensing device 101. While on the plate, the card is moved to the left (Fig. 2) by rollers 37, 39 controlled by a magnet 35 and then to the right by rollers 43, 45 controlled by a magnet 149, the information being read during its rightward movement. It is moved backwards and forwards repeatedly, the transducer 49 being stepped laterally by a screw 51 after each cycle. For delivery, the card is finally moved to the right, the gate 21 is opened, and the card is delivered by the rollers 43, 45 and rollers 58, 59 into the hopper 17. If the card is to be delivered through the device 19, the gate remains closed and the card is ejected by rollers 71, 73. A card inserted in the throat 65 is fed inwards by rollers 67, 69, but if there is already a card on the plate 13, the rollers 71, 73 are rotated to prevent the feed. The roller 23 may be replaced by a pusher knife.
Patent GB-1502457-A (GB)
Title: Liquid crystal devices
IPC: G09F9/35
Filed: 1975-06-24
Abstract: 1502457 Ion depletion of glass surface RCA CORPORATION 24 June 1975 [5 July 1974] 26730/75 Heading C1M [Also in Division G2] A method for treating a glass substrate for use in liquid crystal device by connecting the surface carrying the conductive coating to the positive terminal of a D.C. power supply and the opposite surface to the negative terminal and heating the substrate while passing the current for depleting alkali metal ions immediately below the first surface. The electric power may be applied during the heating up period. The ion depletion helps to avoid misalignment of the liquid crystal material.
Patent GB-711073-A (GB)
Title: Improvements relating to electric transformers
Inventor: SHAND GEORGE
IPC: H01F27/10
Filed: 1951-11-15
Abstract: 711,073. Transformers. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 29. 1952 [Nov. 15, 1951], No. 26794/51. Class 38(2) The magnetic core, which may be of wound strip, of a pulse or other transformer, comprises spaced portions 1, 2 between which is a duct 3 bounded by walls 4. 5 through which cooling fluid passes. When the core laminations are bonded, the top and bottom plates 6, 7 forming the duct 3 may be omitted. The core may be annular and split into three or more portions separated by two or more cooling ducts, the walls 5 and 4 forming part of the casing walls. The outer casing wall may be spaced from the core to allow cooling fluid to pass over the outer core surfaces.
Patent GB-877866-A (GB)
Title: Printing forme for the printing and simultaneous punching, creasing or scoring of a blank
IPC: B26F1/40
Filed: 1959-08-06
Abstract: 877,866. Printing surfaces; creasing and scoring. CHRISTENSEN, A. P. V. Aug. 6, 1959 (Aug. 6, 1958], No. 26839/59. Classes 100(1) and 100(2) A forme for the simultaneous printing and punching out, creasing or scoring of a blank by the use of printing elements movable in the direction perpendicular to the plane of the blank being printed in relation to a base 1 carrying one or more punching, creasing or scoring members 5, comprises printing elements 4 placed on a block 3 of resilient material, between which block and the base 1 an intermediate layer 2 of soft, resilient and easily worked material is mounted. The block 3 may be made from a resilient plastic, the layer 2 from rubber and the base 1 from wood. In use the elements 4 are inked and then pressed against the blank to be printed; as printing pressure is increased the layer 2 is compressed until the memebrs 5 contact the blank and cut, crease or score it. The invention is applicable to platen, cylinder or rotary machines.
Patent GB-707234-A (GB)
Title: Improvements relating to document filing equipment and the like
Inventor: SHANNON EDGAR LIONEL
IPC: B42F21/10
Filed: 1950-11-03
Abstract: 707,234. Filing papers; tabs. SHANNON, Ltd. Nov. 5, 1951 [Nov. 3, 1950; July 30, 1951], Nos. 26942/50 and 17999/51. Classes 16 and 146(1) A sheath for protecting a label for, or the edge of, a record card or the like comprises transparent material having dielectric properties, folded to form two limbs between which the label or the edge of the second card is inserted, the two limbs having parts in register of which areas, not extending to the edge of the material, are fused together by high frequency heating. As shown in Fig. 4, a tab, as described in. Specification 444,054, comprises a sheet of transparent material e.g. of cellulose acetate, folded at 1 to provide an upper part 2 for the reception of a label and a lower part 4 having projecting ears 6 to be passed through slots in the upper part of -a file folder, the upper part 2 being bent along the line 8 so as to project rearwardly. Areas 10 are fused together by high frequency heating and preferably the areas extend, as shown at 12, over the line of bending 8. The areas may form a pattern of any shape or may extend over substantially the whole of the part 4. A tab of a rectangular shape with depending ears is shown in which the ears are fused together. and with this modification, the folder may be impregnated, e.g. with ethyl lactate so that the ears and folder are fused together. In a further modification, the tab may be rectangular with the lower parts of the limbs lying either side of the top of a folder and are fused together through it or through holes in it. Referring to Fig. 10, a card or a card holder 28 hinged to a strip 23, as in an overlapping index, has a transparent sheath 25, which with threads 27 may hold a record card 24, and the sheath 25 is secured to the cord 28 by fusing through holes 26. Instead of holes 26, the card may be recessed and areas over such recesses are fused together.
Patent GB-688571-A (GB)
Title: Improvements in or relating to apparatus for centrifugal casting
IPC: B22D13/06
Filed: 1950-11-06
Abstract: 688,571. Centrifugal casting-machines. AKT.- GES. OEDERLIN & CIE. Nov. 6, 1950 [Nov. 4, 1949], No. 27029/50. Class 83 (i). In a centrifugal casting machine comprising a number of chill moulds arranged radially within a rotary two - part casing, the moulds are supplied with molten metal by a distributer unit which rotates with the casing and is axially adjustable within the casing. Each mould 10 is provided at the bottom 12 with a recess to receive a core 13 and comprises two parts clamped between the rims 7 of the parts 1 and 2 of a casing mounted on a rotary shaft 3. The part 1 is keyed to the shaft and part 2 is clamped to part 1 by bolts 4. Molten metal is poured from a spout 21 into a distributer disc 14 angularly adjustable on a sleeve 15 which is keyed to the shaft 3 and is axially adjustable on the shaft by a screw 17.
Patent GB-1430126-A (GB)
Title: Synthetic resin compositions and methods of utilizing the same
IPC: D06M13/192
Filed: 1973-06-06
Abstract: 1430126 Synthetic resin compositions JOHNSON & JOHNSON 6 June 1973 [7 June 1972] 27034/73 Heading C3P [Also in Division D1] A synthetic resin composition having an alkaline pH comprises (1) 0-1 to 60% by weight of a synthetic resin solid colloidally dispersed in an aqueous medium, (2) 0À01 to 5% by weight, expressed as metal based on the weight of the resin solids, of a metal complex co-ordination compound which provides polyvalent metal cations, (3) 5 to 90% by molar weight, based on the molar weight of the polyvalent metal of the co-ordination compound, of a water-soluble ionically active NH 4  or alkali metal salt of an acid capable of being chemically converted into an ionically-inactive polyvalent metal salt of the acid by chemical reaction and sequestration of the polyvalent metal cations. In examples, the synthetic resin is a carboxylated butadienestyrene resin, a polyacrylate, polyvinyl chloride, polyvinyl acetate or an ethylenevinyl acetate copolymer, the metal complex co-ordination compound is zinc tetramine chloride, sulphate, carbonate or nitrate, or ammonium zirconyl carbonate, and the water-soluble salt is diammonium phosphate, ammonium oxalate, citrate, benzoate, palmitate or succinate, the sodium or ammonium salt of ethylene diamine tetraacetic acid, or sodium phosphate; ethylene diamine tetraacetic acid is also used, the ammonium salt being formed in situ. The composition may also contain a polymeric thickener such as the ammonium salt of an acrylic acidacrylamide copolymer, carboxymethylcellulose or sodium alginate, and may be used to bond non-woven fabrics by applying it thereto and then destroying its stability by dilution or acidification so as to precipitate the resin on the fibres.