baber/WOPTO huggingface dataset:
Patent GB-1409319-A (GB)
Title: Steam powered sysem and method of operating the same
IPC: F01K9/00
Filed: 1972-10-21
Abstract: 1409319 Method of operating a steam powered engine J L CASSIDY 21 Oct 1972 48580/72 Heading B1D The invention relates to a method of operating a steam turbine or other steam powered engine, and apparatus therefor, in which spent steam is led to a heat exchanging and condensing arrangement e.g. consisting of heat exchangers 4 and 5, and is allowed to condense and build up back pressure in heat exchanger 4 to a desired magnitude, whereupon valve 13 automatically opens or closes as necessary to allow the steam to pass to heat exchanger 4 to maintain the pressure at or near the desired magnitude. Pump 2 is automatically regulated to ensure that the spent steam taken from the engine is maintained at a low positive pressure to prevent engine back pressure at all engine loads.
Patent GB-953833-A (GB)
Title: Flexible tube
Inventor: DELACOUR JACQUES
IPC: E21B17/20
Filed: 1962-12-28
Abstract: 953,833. Pipes and tubes. INSTITUT FRANCAIS DU PETROLE, DES CARBURANTS ET LUBRIFIANTS. Dec. 28, 1962 [Dec. 29, 1961], No. 48915/62. Heading F2P. A flexible tube which is capable of withstanding pressure differences and tensile forces without substantial deformation comprises a hollow core 1 of pliable material, such as neoprene, and at least one reinforcement formed by two layers of helically-wound metal wires 5 and 6, oppositely wound with respect to each other and directly superposed so that one may slide freely on the other. There may be two pairs of helically-wound wire layers which are inclined in opposite senses to the tube's axis, one by amounts between 45 and 90 degrees (preferably between 50 and 60 degrees) to bear internal pressure and a second external to the first and inclined by amounts between 15 and 35 degrees to the axis to bear the internal pressure. In general, each of the oppositely wound layers should subtend an angle α with the axes of the tube such that: R is the radius of the helix in centimetres, e the thickness between the inside of the tube core and the outer helical layer in centimetres, P the internal pressure in Kgms./cm.<SP>2</SP> and T the tensile force on the tube in Kgs. Tubes thus constructed may be used as drill-strings or for undersea pipe lines. The tube may include a layer of electrical conductors 3 between insulating layers 2 and 4 or (Fig. 2, not shown) a proportion of the wires in the outer helical layers may be insulated conducting cables slightly smaller than the reinforcing wires (8 and 9 of Fig. 1); single spring steel reinforcement may be used as at 22 of Fig. 3. The whole is enclosed in a protective outer sheath as at 11 or 26.
Patent GB-1320259-A (GB)
Title: Intermittent rotary drive mechanism
IPC: F16H27/02
Filed: 1971-10-25
Abstract: 1320259 Ratchet mechanism NATIONAL CASH REGISTER CO 25 Oct 1971 [2 Nov 1970] 49421/71 Heading F2Q A rocking member 54 is pivoted about an axis 56 and has two projections 59, 60 which are adapted alternately to be brought into engagement with teeth 68 of a wheel 66 thereby causing uni-directional intermittent rotation of the wheel 66. The member 54 is attached to a plunger 53 which is moved in one direction by energization of a solenoid and is moved in the opposite direction by a spring 50. The mechanism is used as a drive for feeding record material to a printing mechanism.
Patent GB-1245619-A (GB)
Title: Lens system
IPC: G02B13/04
Filed: 1968-10-24
Abstract: 1,245,619. Lenses. NIPPON KOGAKU K.K. Oct.24, 1968 [Oct. 24, 1967], No.50556/68. Heading G2J. A compact retrofocus type wide angle lens objective having an angle of view of between 90 degrees and 100 degrees comprises a front group dispersing system consisting of a positive meniscus lens L 1 , of which the positive surface R 1  is towards the direction of incident light and negative meniscus lenses L2 and L3; and a rear group consisting of a positive lens component L 4 , a cemented or divided positive lens component L 5 , a negative lens component L 6  and positive meniscus lenses L 7  and L 8 ; and the lens system satisfying the conditions represented by the formulae:- where R 2  and R 3  are the radii of curvature of the back and front faces of the first and second meniscii L 1  and L 2 , d 13  + d 14  is the axial thickness of the sixth lens L 6  and d 15  is the axial thickness of the air space between the sixth and seventh lenses to L 6  and L,. In other embodiments the following inequalities also apply where R is the radius of curvature of the front face of lens L 1  and R 11  and R 12  the respective radii of curvature of the front and back surfaces of lens component Ls. Optical data are provided for five examples.
Patent GB-1042985-A (GB)
Title: Improvements relating to apparatus for treating cardboard and like materials
Inventor: BISHOP THOMAS DESMOND
IPC: B31B50/22
Filed: 1963-12-21
Abstract: 1,042,985. Creasing. DERITEND ENGINEERING CO. Ltd. Dec. 21, 1964 [Dec. 21, 1963], No. 50587/63. Heading B6J. [Also in Division B4] Apparatus for slotting cardboard &c. comprises two co-operating sets of rolls 11, 13, each having at least one set of slotting apparatus and arranged so that a continuous slot 22, Fig. 2, may be produced by co-operation of the two sets. As described, the apparatus further comprises two pairs of bar bending means 10, 12, each pair being provided with angularlyadjustable creasing tools 16, 17 which are adjustable synchronously to vary the spacing of transverse creases 18 in a blank 19. Each slotter has two sets of angularly and lengthwise adjustable slotting knives, viz. male knives 20 and corresponding female knives (not shown). In operation, creases may be formed spaced by a distance greater than half the roll circumference, by forming one crease with one roll pair 10 and the next with the other pair 12. The machines may also produce small blanks in pairs, with the first crease on each blank formed by the benders of the first roll pair and the second crease by the other roll pair. The two blanks are then severed, as along line 23, Fig. 2, by a transverse cutter pair 14.
Patent GB-998439-A (GB)
Title: Thermoplastic compositions
IPC: C08L77/00
Filed: 1963-12-23
Abstract: A thermoplastic composition comprises a mixture of from 1 to 50% by weight of an olefin copolymer in the form of particles having a diameter of less than 5 microns dispersed in from 99 to 50% by weight of a linear polyamide, the olefin copolymer containing from 0.1 to 10% mole of acid groups.  Specified polyamides are those derived from dicarboxylic acids, e.g. oxalic, succinic, adipic, suberic, sebacic and terephthalic acid and diamines, e.g. hydrazine, ethylene diamine, pentamethylene diamine, hexamethylene diamine, decamethylene diamine, tetramethylene diamine, bis-(p-aminocyclohexyl) methane, p-phenylene diamine and m-phenylene diamine; or from amino acids or derivatives thereof, e.g. carbamic acid, 6-aminocaproic 11-aminoundecanoic acid, 12-aminostearic acid, leucine, b -phenylalanine and 1-aminocyclohexane carboxylic acid and copolyamides thereof. Specified copolymers are those derived from 1-olefines and a  : b -unsaturated monocarboxylic acids; by graft polymerization of the acid comonomer to polyolefines and sulphonated ethylene-styrene copolymers. In the Examples: (1), (2), (3a) to (3c), (4), (5), (11) and (13) polyhexamethylene adipamide is blended with a copolymer of ethylene and methacrylic acid; (3d) to (3f) a copolymer of hexamethylene diamine, adipic acid and caprolactam is blended with a copolymer of ethylene and methacrylic acid; (6) polyhexamethylene adipamide is blended with a copolymer of propylene and undeconoic acid; (7) poly-butene-1 is graft polymerized and acrylic acid and the resultant polymer blended with polycaprolactam; (8) polyhexamethylene sebacamide is blended with the reaction product of isotactic poly-4-methyl-pentene-1 with a styrene-maleic acid copolymer; (9) a sulphonated copolymer ethylene and styrene is blended with polyhexamethylene adipamide; (10) a polyamide made from diethyl oxalate, 3-methoxy hexamethylene diamine and hexamethylene diamine is blended with an ethylenemethacrylic acid copolymer and (12) a phenyl isocyanate modified polyhexamethylene adipamide is blended with an ethylene-methacrylic acid copolymer. Specifications 461,236, 535,421, 548,263 and 619,707 are referred to.
Patent GB-1203775-A (GB)
Title: Improvements relating to electric plug and socket contacts
IPC: H01R13/15
Filed: 1967-11-08
Abstract: 1,203,775. Making contacts for plugs or sockets. OTTO DUNKEL G.m.b.H. 8 Nov., 1967 [9 Nov., 1966], No. 50724/67. Heading B3A. [Also in Division H2] An electrical contact unit for a plug or socket is formed by etching out parallel spaced slots from a metal sheet 1 to form contact elements 2 and forming the sheet 1 into a contact sleeve. A beryllium copper or bronze sheet 1 is etched with ferric chloride to form elements 2 having a trapezium or hexagonal cross-section. The sleeve with its elements 2 curved outwards may be attached to a plug pin 6, Fig. 4, by a ring 8 or inserted in a groove in the pin 6 (Fig. 5, not shown). The outer ends of the elements 2 are hooked into a groove 9 in the pin 6. Alternatively, the sleeve with its elements 2 curved inwards may be inserted into a plug socket 7, Fig. 7, held in position by a ring 10 or by locating the web 3 of the sleeve in a groove (11), (Fig. 8, not shown) and deforming the body 7. The outer ends of the elements 2 are located in a groove in an attached ring 13. A sleeve may be formed with a longer web portion 3 (Fig. 9, not shown) to receive a connection lead.
Patent GB-1069500-A (GB)
Title: Improvements in viscose spinning
Inventor: BROWER PAUL VERNON
IPC: D01F2/10
Filed: 1963-12-23
Abstract: 1,069,500. Spinning viscose. BEAUNIT CORPORATION. Dec. 23, 1963, No. 50728/63. Heading B5B. Viscose containing a polyalkylene glycol, or a derivative thereof, said glycol having an average molecular weight of at least 400 and a water-soluble hydroxy fatty acid is extruded into an acid spin bath. The polyalkylene glycol may be polyethylene glycol, polypropylene glycol or mixed polyethylene-polypropylene glycol, said glycols having an average molecular weight of 400 to about 9000. The hydroxy fatty acid may contain 2 to 6 carbon atoms in the molecule and the hydroxyl group is preferably in the alpha position. The viscose may have a salt point of about 7À5 to about 9À0. The modifiers may be dispersed and/or dissolved in both the viscose and the spin bath. The polyglycol modifier only may be added to the viscous while the spin bath contains sufficient proportions of both modifiers, the proportion of hydroxy fatty acid added to the spin bath to ensure the presence in the bath of sufficient of this modifier to retard greatly the degradation of the polyalkylene glycol modifier introduced into the bath by the spinning operation. The viscose is preferably " green " or substantially unmatured. Very high molecular weight polyalkylene glycol modifiers, e.g. of molecular weight 20,000, are not particularly efficient. In the examples, the modifiers used are " Carbowax 4000" (a polyethylene glycol having an average molecular weight of about 3300) and hydroxyacetic acid and the spin bath contains sulphuric acid, sodium sulphate and 100 g./litre of zinc sulphate. The term "polyalkylene glycol" is used in the Specification to include the ether and ester derivatives, including the hydroxy fatty acid esters.
Patent GB-1529057-A (GB)
Title: Electronic musical instrument
IPC: G10H3/09
Filed: 1974-11-25
Abstract: 1529057 Electrophonic musical instruments D W BIRD 22 Oct 1975 [25 Nov 1974] 50864/74 Heading G5J A musical instrument comprises a number of cartridge magnetic tape players 3 operating independently of one another to continuously produce tone signals, and a keyboard 2 with switches arranged to select which of the player's outputs are fed to an amplying system. As described the players are independant 8-track cartridge players with stereo heads; each player thus produces two output signals preferably of related notes such as fourths, fifths or octaves; different sounds can be produced by operating the track change facility on each of the players. One or more of the cartridges 4 may be recorded with a full orchestra or human voice or sound effects such as white noise. Yet different sounds can be produced by swapping the set of cartridges for others. Provision may be made for recording the cartridges.
Patent GB-1509477-A (GB)
Title: Stable injection solutions
IPC: A61K47/02
Filed: 1976-12-07
Abstract: 1509477 Injectable solutions BOEHRINGER MANNHEIM GmbH 7 Dec 1976 [12 Dec 1975] 50960/76 Heading A5B An injectable alkaline solution suitable for injection comprises (a) an alkali metal caurenoate or a mixture thereof with at least one other diuretic, (b) water and (c) an alkaline buffer having a low buffer capacity (defined) and gives a pH in the injectable solution of 10.2 to 11.2. The additional diuretic may be 5-(4-chloro- 5 - sulphamoyl - 2 - thenylaminophenyl) - tetrazole or 4 - chloro - N - (2 - furyl - methyl) - 5 - sulphamoylanthanilic acid. The buffer may be potassium carbonate, potassium phosphate or potassium lysimate. Alkali may be added to bring the pH within the range of 10.6 to 11.0.
Patent GB-1298376-A (GB)
Title: Improvements in or relating to fabric layering or folding machines
Inventor: STUMPF GUENTER
IPC: H02P7/03
Filed: 1970-10-27
Abstract: 1298376 Mechanical switches G STUMPF 27 Oct 1970 [7 Nov 1969] 51081/70 Heading H1N [Also in Division D1] In a fabric layering or folding machine, a control device for reversing the direction of travel of a carriage (4), Fig. 1 (not shown), driven by a D.C. motor (6), and adjusting its speed comprises a knob 24 consisting of a manipulatable element 22 and a sleeve 23 fast therein. The knob 24 is pivotable about a multi-shoulder shaft 20 secured to a plate 19 and its zero position is fixed by the engagement of a ball detent 26 in a recess in the end face of the sleeve 23. A gear 28 is secured to the sleeve 23 and meshes with a gear 29 fitted on a spindle of a rotary potentiometer 30 so that movement of the knob 24 is transferred to the potentiometer. Switches 31, 32 for anti-clockwise and clockwise rotation, respectively, of the motor (6), Fig. 1 (not shown), have levers which engage in a peripheral groove 33 having bevelled ends and which is formed in a sleeve 34 on the sleeve 23. Stops 35, 36 co-operating with a nose 37 limit the length of the actuating path for clockwise and anti-clockwise rotation, respectively. In the zero position of the knob 24, neither switch 31, 32 is actuated and the motor speed is adjusted by rotation of the knob 24 until maximum speed is reached on contacting a stop 35, 36.
Patent GB-511295-A (GB)
Abstract: 511,295. Heating work pieces by passage of current. BENEDETTO, G. D. M. Feb. 15, 1938, No. 4735. [Class 39 (iii)] [Also in Group XXII] In an upsetting machine a number of workpieces 31 are arranged in series between the same number of pairs of electrodes. The lower electrodes 13 are anvils and the upper ones are vices with hydraulically operated jaws 17. The jaw 20 is common to both upper electrodes.
Patent GB-1056478-A (GB)
Title: Improvements in or relating to piston pumps
IPC: F04B15/02
Filed: 1964-12-16
Abstract: 1,056,478. Reciprocating pumps. O. C. G. WENNBERG. Dec. 16, 1964 [Dec. 19, 1963], No. 51144/64. Heading F1A. A piston pump for concrete or material of similar consistency comprises two feed pistons provided each in a working cylinder and alternately forcing the material from a supply container to a common discharge duct the entry of which is alternately put into communication with the cylinders by means of a valve having a through passage, the entry of the common discharge duct being common to both cylinders and having an entry area at least twice the cross-sectional area of each cylinder. Two side-by-side cylinders 44, 46, Figs. 1 and 4, are connected to a hopper 16 containing concrete. Each cylinder has a tubular piston 48 sliding on a stationary member 50. Pressure liquid is supplied or withdrawn through ducts 62, 64 alternately to opposite sides of each member 50 whereby the two pistons 48 are reciprocated in opposite directions. A discharge valve 24, pivoted on a shaft 26, can be swung by means of a pair of hydraulic jacks (not shown) acting on a double crank 32 so that its through passage 42 aligns with the piston which is performing a discharge stroke, whereby the concrete which was drawn from the hopper 16 during the previous suction stroke is discharged through the valve into a discharge duct 72. At its entry 74, Fig. 5, the discharge duct 72 is enlarged so as to embrace both positions of the valve passage 42, the area of the entry 74 being at least twice the cross-sectional area of each cylinder 44, 46. The valve has a cover plate 76 which covers the portion of the entry 74 not being used. An annular knife 70 carried by the valve co-operates with a stationary ring 68 to cut through the concrete when the valve position is being changed. The pump is mounted on a frame 10 supported by wheels 12.
Patent GB-1134834-A (GB)
Title: Apparatus for producing metal powder
Inventor: WINSTROM BERTIL GUSTAV
IPC: B22F9/08
Filed: 1965-12-02
Abstract: 1,134,834. Spray-producers. A. O. SMITH CORP. 2 Dec., 1965, No. 51252/65. Heading B2F. [Also in Division C7] Apparatus suitable for producing a powder from streams 4 of a molten metal.. comprises a pair of angularly adjustable nozzles 14 adapted to discharge sheets 34 of water onto the molten streams 4 through elongated, outlet slots 16. Each nozzle 14 is in the form of a bar having an inner longitudinal slot 18, an outer longitudinal slot 16 which forms the discharge outlet, and a tapered region 17 intermediate the two slots. Each nozzle is fed with water through a passage 23, a series of passages 20, and a recess 19. The nozzles are locked in the selected positions, indicated by plates 28, by bolts 31. The apparatus may include a plurality of nozzle assemblies in a head (5), Fig. 1 (not shown) located beneath a container (1) for the molten metal (2), A reducing gas fed within a shield between the container (1) and the head (5) prevents oxidation of the streams 4. The atomized molten streams are collected in a water-filled container (6) provided with a central ramp. The metal may be iron, steel, stainless steel, or copper.
Patent GB-1192980-A (GB)
Title: Improved Bituminous Pipe Coatings
Inventor: SCHMIDT ROBERT JAMES
IPC: F16L59/14
Filed: 1967-11-13
Abstract: 1,192,980. Coated pipes. CHEVRON RESEARCH CO. 13 Nov., 1967 [14 Nov., 1966], No. 51619/67. Heading B2K. Pipes of iron or iron-containing alloy have a granular coating bonded to the outer surface by means of a cured resin and a further coating of a mixture of bitumen and filler. The resin may be an unsaturated polyester, which may be applied in solution in a copolymerizable olefin, or a polyepoxy which may be applied with an amine or anhydride hardener. The granular material may be sand. A primer, such as asphalt, may be applied to the granular coating before application of the bitumen-containing coating.
Patent GB-1201049-A (GB)
Title: Colour display screen for a cathode ray tube
Inventor: JONES MORTON EDWARD
IPC: H01J29/26
Filed: 1967-11-14
Abstract: 1,201,049. Luminescent screens. TEXAS INSTRUMENTS Inc. 14 Nov., 1967 [2 Dec., 1966], No. 51694/67. Heading C4S. [Also in Division H1] A colour display screen comprises layer 19 of a random mix of first and second phosphor particles 21, 23 emitting light of first and second colours when energized by electrons of energy above a relatively high predetermined level (Fig. 3, not shown) and a discontinuous layer 32 of third phosphor particles 33 emitting light of a third colour when energized by electrons having energies above a relatively low predetermined level. The particles 33 are relatively small (e.g. 0À1 to 1 micron diameter) in relation to the layer 19 thickness (including particles 16 microns diameter) and have gaps between such that electrons of energies above the relatively high energy level which strike particles 33 pass through and produce substantially no more light of said third colour than is produced by electrons of energies just equal to that level, those passing through the gaps .producing first and second colour light in amounts increasing with electron energy. Particles 21 and 23 may emit relatively short wavelength light (e.g. green and blue) and particles 33 relatively long wavelength (e.g. red). At intermediate and high energy levels warm achromatic light (red and green) and cool achromatic light (red, green and blue) is produced. The phosphors may be green emitting silver activated ZnCdS (Zn/Cd being about 80: 20), blue emitting silver activated ZnS and red emitting ball-milled YVO 4  :   Eu or yttrium or gadolinium oxide. Non-fluorescing surface barrier layers 27, 31 (e.g. silicon dioxide) of different thicknesses determine the threshold of electron excitation. Preferably the rate of rise of the blue phosphor particle output is greater than that of the green particles so that at some relatively high potential the blue and green light outputs are equal. Particles 21 and 23 may be applied by flushing a thin liquid slurry of the suspended particles, pouring off excess and evaporating to dryness. Particles 33 may be applied by settling from a water or air suspension or by electrophoresis. Sequential frame, dot or line operation of the colour television receiver is disclosed and also deflection compensation. Reference is made to Specifications 1,152,201 and 1,144,082.
Patent GB-1528745-A (GB)
Title: Game apparatus for use in the simulation of a method of transport organisation
IPC: A63F3/00
Filed: 1975-10-31
Abstract: 1528745 Board game KARSTAMPS Ltd 31 Oct 1975 [29 Nov 1974] 51707/74 Heading A6H Apparatus for playing a game comprises a board as shown, cards instructing players to pick up a passenger to one destination, and mileage vouchers. Each player has a stamp to mark the vouchers and a co-ordination form.
Patent GB-1221680-A (GB)
Title: Novel piperidine derivatives
IPC: C07D211/52
Filed: 1968-11-01
Abstract: 1,221,680. Substituted piperidines. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT. 1 Nov., 1968 [2 Nov., 1967] No. 51930/68. Heading C2C. Novel compounds of the formula (in which Alk is C 2-4  alkylene optionally substituted by an OH group, and R 1  to R 6  are each H, halogen, NO 2 , OH, C 1-5  alkoxy, C 1-5  alkyl or C 1-5  trifluoroalkyl or any two of R 1  to R 6  on the same phenyl nucleus may be joined to form an alkylenedioxy group) and their salts and quaternary ammonium derivatives, in optically active or racemic form, are prepared (a) by reacting an appropriate phenyl vinyl ketone (II) or a corresponding Mannich base (III), i.e. a phenyl dialkylaminoethyl ketone with an appropriate phenyl phenylalkylaminoethyl ketone (IV), or by reacting (II) or (III) with an appropriate phenylalkylamine (V), or by heating (IV) in an inert medium; or (b) by reacting an appropriate phenyl 2-haloethyl ketone (VII) with (IV) or with (V) in the presence of a base; or (c) by reacting an appropriate phenyl methyl ketone with (V) and formaldehyde or formaldehyde donors, and, when required, converting the products into salts or quaternary ammonium derivatives. Racemates obtained may be resolved.