baber/WOPTO huggingface dataset:
Patent GB-472334-A (GB)
Title: Improvements in cooling of air cooled internal combustion engines for aircraft
IPC: F01P7/02
Filed: 1936-04-08
Abstract: 472,334. Cooling aero-engines. ELLOR, J. E., and PARAVICINI, T. P. DE. April 8, 1936, No. 10372. [Class 4] Means for cooling an air-cooled aero-engine having one or more banks of cylinders arranged parallel to the crank-shaft and disposed in a cowling continuous with a wing surface, include one or more ducts communicating with openings in the leading edge of the wing and so shaped as to convert pressure energy of the cooling air-stream into kinetic energy at discharge and discharging the exhaust gases from the engine into the stream before its discharge to the surrounding atmosphere. In one form, air entering a wing A<1> through apertures C is led through passages D to the lateral spaces E between the cylinder of an engine A arranged in a cowling B faired into the wing. The air passes the engine cylinders and traverses spaces F above and below the wing spar D<1> and is led through a passage F<1> to an outlet F<2> controlled by flaps F3. Each bank of cylinders exhausts into a manifold G. In a modification the engine is accommodated entirely inside the wing.
Patent GB-1070636-A (GB)
Title: Process relating to new derivatives of s-triazine and preparation thereof
IPC: C11B9/00
Filed: 1966-03-09
Abstract: The invention comprises compounds of the formula <FORM:1070636/C2/1> wherein X is a mono-, di- or tri-chloromethyl group and R1 and R2 are the same or different and represent morpholino, piperidino, piperazino, N-alkyl-piperazino radicals or the group <FORM:1070636/C2/2> where R3 is hydrogen or an alkyl group and R4 is a C1- 6 alkylene radical.  Compounds in which R1 or R2 is a hydroxyalkylamino group are made by reacting a compound of the formula <FORM:1070636/C2/3> with at least a stoichiometric equivalent of an amine <FORM:1070636/C2/4> in the presence of a catalytic amount of an alkali metal alcoholate.  Compounds in which R1 or R2 are heterocyclic radicals or a hydroxyalkylamino radical are made by reacting one of the compounds of the formula <FORM:1070636/C2/5> <FORM:1070636/C2/6> at room temperature with an excess, large enough to dissolve the triazine, of an amine <FORM:1070636/C2/7> piperazine, piperidine, an N-alkyl-piperazine or morpholine, optionally in the presence of an organic solvent and preferably in the presence of a catalytic quantity of water or an alkali metal hydroxide.  Those compounds in which X is a mono- or di-chloromethyl group are made by subjecting the compounds in which X is a trichloromethyl group to catalytic hydrogenation, e.g. over a Pt-oxide catalyst.  Examples are provided.
Patent GB-667392-A (GB)
Title: Improvements in or relating to film-forming latex of unplasticized ternary vinylidene chloride copolymer
IPC: C08F214/08
Filed: 1949-04-19
Abstract: A latex-like dispersion of a ternary copolymer is obtained by polymerizing a mixture consisting of 89 to 92 per cent vinylidene chloride, 2 to 4 per cent acrylonitrile and 4 to 9 per cent ethyl acrylate, dispersed in water to a concentration of 45 to 60 per cent, in the presence of an anionic emulsifier and a peroxidic catalyst, at a pH between 1.5 and 6.5.  The latex is capable of depositing flexible and elastic films or coatings which are continuous and highly impervious to moisture when dried at room temperature. Hydrogen peroxide, benzoyl peroxide, sodium perborate or potassium persulphate are specified catalysts.  A water-soluble iron salt, e.g. ferric nitrate, may be used as an accelerator.  Suitable emulsifiers are the soluble salts of an aryl sulphonic acid, e.g. methylene di-(naphthalene sodium sulphonate) or of a long chain alkyl sulphate. After polymerization, which, at a temperature of 40 DEG  C., requires about 20-24 hours, the emulsion is neutralized or made alkaline.  The dried films are initially mainly amorphorus but become crystalline in about a week, or may be drawn and crystallized by heating.  The films, which are greaseproof, may be used as such or coated on paper, as wrapping material.  Plasticizers may be present but form weaker films.  The viscosity of a latex may be increased by the addition of less than 1 per cent of thickeners such as hydroxyethyl cellulose, sodium salt of carboxymethyl cellulose and the sodium or ammonium salts of polyacrylic acid.  The dispersions may be coagulated by the addition of electrolytes and used to form coatings by electrodeposition.  Specification 525,048 is referred to.
Patent GB-551378-A (GB)
Title: Improvements in or relating to centrifugally actuated friction clutches
IPC: F16D43/10
Filed: 1941-08-18
Abstract: 551,378. Friction clutches. NEWTON, N. B. Aug. 18, 1941, No. 10472. [Class 80 (ii)] A driving plate for a friction clutch is connected to the driving member b near its outer perimeter by pins a and is in two parts c', c<SP>2</SP> which are spaced by balls d in radial taper grooves e. Under centrifugal force the balls d move outwardly to engage the clutch. As shown, the clutch includes a withdrawable presser plate i acted on by springs j, and axial separation of the parts c<SP>1</SP>, c<SP>2</SP> is limited by a bolt h. Movement of the plate i towards the friction plates is limited by the studs k for automatic disengagement centrifugal catch levers m pivoted on the back plate n engage behind the nuts o on the studs k. If, when the clutch is stationary, the presser plate i is withdrawn, springs q disengage the levers m from the studs k, and the automatic clutch release action ceases.
Patent GB-121086-A (GB)
Title: Improvements in and relating to the Construction of Boxes and like Receptacles.
Inventor: BOUTWOOD SYDNEY JOHN
IPC: B65D43/02
Filed: 1918-06-26
Abstract: 121,086. Boutwood, S. J. June 26, 1918. Boxes &c. made by bending sheet material; joints between box bottoms and bodies; lids and covers; tampering with, preventing &c.-A box &c. for hats, bonnets, &c. comprises a body a made by bending to cylindrical form a length of, preferably, three-ply wood, the ends of which overlap or butt against each other and are suitably secured together. The bottom b is held between members c, d secured to the inside of the body, and the lid e is supported within the body on members g. Lengths of cord, wire, &c. are passed through holes h, h<1> and are united at their extremities and may be sealed to the box, for the purpose of securing the lid and preventing unauthorized opening.
Patent GB-111981-A (GB)
Title: A Device for Destroying Aircraft from a Higher Elevation than that of the Enemy Aircraft.
Inventor: SMITH RICHARD JAMES
IPC: F42B12/44
Filed: 1917-07-23
Abstract: 111,981. Smith, R. J. July 23, 1917. Aerial warfare. - Relates to bombs 6 trailed from aircraft by a. line 5 for destroying enemy aircraft, and consists in providing the bomb with a firing-device 10 controlled by a trigger 12 which is connected by a short line 15 to grappling hooks 18 adapted to be caught by the enemy aircraft.
Patent GB-661598-A (GB)
Title: Improvements relating to mechanism for operating remote-control linkages
Inventor: BOYLE EDWARD HARLEY
IPC: F16C1/14
Filed: 1949-04-21
Abstract: 661,598. Bowden mechanism; locking rods. S. U. CARBURETTER CO., Ltd. April 20, 1950 [April 21, 1949], No. 10567/49. Class 80 (iii). [Also in Group XXXI] A Bowden cable 7, which may operate a carburetter control, is actuated manually by axial movement of the knob 13 of a hollow plunger 12, and frictional locking means are provided for retaining the cable in any position of adjustment. A hollow rubber plug 8 having an interference fit in a fixed cylindrical casing 1 is held in a pair of members 9, 10, and the member 10 is screwed to a sleeve 11 surrounding the plunger 12. The cable 7 passes through the member 9 and the plunger 12 and is attached to a pin 16 which passes through a slot 17 in the plunger and is secured to the sleeve 11. The tension in the cable 7 normally acts upon the sleeve 11 to compress the rubber 8 and jam it in the casing 1, thus axially locking the cable. If, however, the plunger 12 is pulled so that a shoulder 18 thereon abuts the sleeve 11, or is pushed to abut the member 9, the plug 8 is subjected to tensile stress causing its waist to contract and permit the desired adjusting movement.
Patent GB-435323-A (GB)
Title: Improvements in or relating to the manufacture of di-electric materials
IPC: H01B3/18
Filed: 1934-04-07
Abstract: A material of high dielectric constant comprises a mixture of nitrobenzene, a wax or waxes, and polymerized styrol or vinyl halides and esters, or cellulose esters or ethers such as cellulose nitrate or acetate.  Preferred waxes are carnauba, japan, montan, and paraffin.  The nitrobenzene is preferably purified by decolourizing with carbon, decanting and distilling off moisture under reduced pressure.  Paper for electric condensers may be impregnated with the composition or paper interleaved condenser units may be impregnated and after impregnation given a protective coating of paraffin wax to prevent the evaporation of nitrobenzene.ALSO:A material of high dielectric constant comprises a mixture of nitrobenzene, a wax or waxes, and a third ingredient comprising one of the following: chlorinated rubber, the mixed halogenated compounds described in Specification 410,008, [Group IV], polymerized styrol or vinyl halides and esters, or cellulose esters or ethers such as cellulose nitrate or acetate.  Preferred waxes are carnauba, japan, montan, and paraffin.  The nitrobenzene is preferably purified by decolourizing with carbon, decanting and distilling off moisture under reduced pressure.  A preferred composition comprises 70 parts nitrobenzene 18 parts carnauba wax and 5 parts chlorinated rubber.  Paper for electric condensers may be impregnated with the composition or paper interleaved condenser units may be impregnated and after impregnation given a protective coating of paraffin wax to prevent the evaporation of nitrobenzene.
Patent GB-678798-A (GB)
Title: Moulding materials for foundry cores and moulds
IPC: C08L61/10
Filed: 1951-05-04
Abstract: Moulding compositions for making sand moulds and cores comprise a synthetic resin as binder, sand and vitreous material, e.g. glass flux prepared by fusing silicon dioxide, phosphoric acid, and/or boric acid as acid component and metallic oxides, alkaline earths and/or alkali metal compounds as basic component. Proportions specified are 3-5 parts binder, 3-5 parts vitreous material and 100 parts sand.  Synthetic resins specified are phenol, urea, and melamine-aldehyde condensates with 10-12 per cent of hardener, e.g. hexamethylene.  In examples (1) 10 parts of a phenol novalak resin, 8-10 parts powdered flux (prepared by heating together 50 parts calcined soda, 25 parts quartz powder, 26 parts TiO2, 3 parts barium sulphide, and 4 parts iron sulphate), 1.2 parts hexamethylene and 160-210 parts sand are thoroughly mixed together with the addition of 0.5 parts petroleum; (2) a similar procedure is employed, various alternative mixtures being specified for making the flux.
Patent GB-931985-A (GB)
Title: Improvements in electric control motors, in particular for the servo-control of machine-tools
Inventor: GAVREAU VLADIMIR
IPC: H02P5/56
Filed: 1960-03-25
Abstract: 931,985. Electric copying-machines; electric correspondence control systems. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. March 25, 1960 [April 1, 1959], No. 10618/60. Classes 38 (6) and 40 (1). [Also in Group XXXV] The crank-handles 136, 137 of a lathe are driven by D.C. supplied servomotors 134, 135 automatically controlled by Selsyns 130, 131 in response to the reading by three or, as shown, a single magnetic head 120 of a complex recording on a magnetic tape. The component currents are separated by band-pass filters 121 ... 123, detected by bridges 124 .. 126, amplified by amplifiers 127... 129 and then fed to the rotors of selsyns 130 ... 132. The selsyn 132, whose stator is fed by a threephase mains, drives the rotating brushes of a rotating-field frequency-transformer 133 constituted by a three-phase motor stator and the locked rotor of a universal commutator motor. The three-phase output reference current f0 from the transformer 133 is fed to the stators of selsyns 130, 131 whose rotors rotate in either direction at a speed depending on the value of f0 relative to f1 or f2 fed to their rotors. Specification 887,229 is referred to.
Patent GB-872556-A (GB)
Title: Improvements in or relating to automatic and semi-automatic lathes and other machinetools
Inventor: DAWES ERNEST JOHN
IPC: B23Q15/28
Filed: 1957-04-01
Abstract: 872,556. Machine-tool details. PLESSEY CO. Ltd. July 1, 1958 [April 1, 1957], No. 10627/57. Addition to 839,256. Class 83 (3). The method of toolwear compensation described in the parent Specification is supplemented by moving the tool periodically to a position in which the tool itself or, an image thereof, coincides, as long as its shape is correct, with a template or image of an ideal tool. The tool 1 may be brought up to a template 2 over which a light-source 3 is arranged. Shade side-panels 4 (one only shown) prevent light passing except between the tool and template. The amount of light passing through the gap, due to wear of the tool, is passed through a collector lens 5 which concentrates the light on to a photo-cell 8. The output of the latter is amplified at 9 and fed to an indicating instrument 11 and feed-setting device 10. Contact between the tool and template may be used to stop the feed, or the machine, or the feed may be stopped at a predetermined light value. An alternative arrangement using a magnified white-on-black image of the tool on which a correspondingly magnified shadow of the actual tool is superimposed, is described.
Patent GB-556702-A (GB)
Title: A boot or shoe protector
IPC: A43C13/04
Filed: 1942-07-30
Abstract: 556,702. Boot &c. protectors. THOMAS, V. July 30, 1942, No. 10662. [Class 17 (ii)] The heel of a boot is recessed to receive a flanged socket B which is engaged by a threaded stud C, the outer portion of which may be either threaded or plain, and of round or square section. The socket is engaged at D from the heel seat by a tool to rotate it and so move the stud outwards.
Patent GB-1247479-A (GB)
Title: Improvements in cutting tools
IPC: B23C5/22
Filed: 1970-03-06
Abstract: 1,247,479. End mills. VALERON CORP. 6 March, 1970 [10 March, 1969], No. 10804/70. Heading B3K. An end mill 10 comprises a shank 16, having helical slots 20, 22, for cutter blades 12, 14, the shank being slit at 32 along the same helix as the slots, chip removal recesses 24, 26 which follow the helix, at least one clamping screw 40, for clamping the blades in the slots, and a locking grub screw and brass shoe 54, 56 for each screw 40.
Patent GB-473602-A (GB)
Title: Improvements in and relating to cleaners for black-boards and the like
IPC: B43L21/00
Filed: 1936-04-15
Abstract: 473,602. Mops and pads. WILSON & GARDEN, Ltd., and GARDEN, W. B. April 15, 1936, No. 10813. [Class 19] A cleaner for blackboards and the like comprises a bunch of strands 1 of material bound together and inserted in a cap 3 which may be internally screw threaded to provide grip. The end of the bunch is desirably dipped in glue and secured by screw nails 4. The cap 3 is axially adjustable in a holder 5 which may be screw threaded as well as the outside of the cap, so that by manipulation of a finger piece 7 the cap can be set. The holder 5 has a handle 8 extending radially. A receptacle 11 of cup like formation is provided to contain the cleaner. The wall of the receptacle may have a flat face 11<1> for attachment to a wall as by screws 12. The receptacle has a pair of upward extensions 13 to house the handle of the cleaner.
Patent GB-704172-A (GB)
Title: Improvements in or relating to shutters for cinematograph cameras
Inventor: TOLE DONALD KENNETH
IPC: G03B9/10
Filed: 1951-05-10
Abstract: 704,172. Kineinatograph shutters. SPECTO, Ltd. Aug. 8,.1952 [May 10, 1951], No. 11037/51. Class 97(1) Two shutter blades are oscillated about a common axis by constant diameter cams on another common axis so that the blades overlap in one direction of movement but in the other direction are separated by an exposure aperture. As shown in Fig. 2, the part cylindrical shutter blades 10, 11 are carried on members 14, 15 separately pivoted at 16 and forked to embrace constant diameter cams 17, 18 on a stationary pin 19. Gear wheels 22, 23 are secured to the respective cams. The wheel 22 meshes with a pinion 29 on a fixed pin 28 which also carries one end of a link 30. The wheel 23 meshes with a wheel 27, of the same diameter as 29, pivoted on a pin 26-on an arm 24 pivoted on the pin 19. The pin 26 also carries one end of a link 25. The outer ends of the links 23, 30 are connected by a pin 31 on which is carried a gear 32 meshing with both pinions 27, 29. The arm 24 carries, at its outer end, a pin 19a engaged by the forked end of a pivoted lever 33 by which relative movement is produced between the gears 22, 23 and their associated cams to vary the shutter opening during exposure. In the form shown in Fig: 4 the gears 22, 23 secured to the cams 17, 18 and another gear 40 are all carried on a pin 19. The gear 40 is coupled to the gear 22 by gears 43, 44 on a fixed pin 41 and to the gear 23 by gears 45, 46 on a pin 42 carried on an arm 47 pivoted on the pin 19 to provide the shutter adjustment. In another form the cams are connected by a pin on one engaging in one of a series of holes in the other. The angular relationship of the two cams is set while the mechanism is stationary by selecting the appropriate hole.
Patent GB-756335-A (GB)
Title: Tensioning apparatus for golf ball winding machines
Inventor: MCCHESNEY CUYLER S
IPC: B29C53/80
Filed: 1954-09-28
Abstract: 756,335. Thread tensioning apparatus. DUNLOP RUBBER CO., Ltd. Sept. 28, 1954, No. 110/53. Class 120 (2). Apparatus for tensioning a thread passing from a' supply spool to a thread using device comprises a rotatable drum about which the thread is passed and an electromagnetic braking mechanism consisting of an inner stator and an outer stator coaxial therewith, an annular space being provided between said stators, the stators each having an equal number of magnetic poles, the poles of one stator being located opposite to the spaces between the poles of the other stator, a cylindrical rotor of permanently magnetic material mounted in said annular space and rotatably connected to said drum and means for energizing the stator poles, so that the poles of one stator are given opposite polarity to the poles of the other, so as to supply a torsional resistance to the rotation of said drum. In the embodiment shown the drum is connected to a cylinder 31 of permanently magnetic material having a high hysteresis loss which cylinder is rotatable by the drum in an air gap between the poles 29 of an outer stator 27 and the poles 30 of an inner stator 28. The poles 29 and 30 are of opposite polarity and arranged in slightly offset relationship so as to form a zig-zag magnetic field. There is thus a resistance to rotational movement of the cylinder 31 and hence of the drum so that a uniform tension is maintained in the thread passing around the drum. The apparatus is particularly described for use on rubber thread in the winding of golf ball cores. Stop motions operable on breakage of the thread and on the golf ball core reaching a predetermined size are incorporated. Specifications 718,371 and 721,643 are referred to.
Patent GB-1156469-A (GB)
Title: Improvements in Automotive Signaling Systems
Inventor: HOLLINS JESSE RICHARD
IPC: B60Q1/46
Filed: 1967-03-09
Abstract: 1,156,469. Road traffic signals on vehicles; lamp failure alarms. J. R. HOLLINS. 9 March, 1967, No. 11071/67. Headings G4N and G4Q. [Also in Division H1] A turn-indicating system using front and rear signal lamps 60, 64, 112 and 116, the rear signal lamps also being operable by a brake switch 68, is provided with an emergency switch 24 which allows all four lamps to be flashed together, and is characterized by the provision of a monitor lamp 76 which flashes when the emergency switch is operated and which otherwise monitors the rear signal lamps. When the emergency switch 24 is operated power is supplied through flasher 18 to input terminal 22 and is distributed through the first part of the switch to the front lamps via contacts 38 and 40, to the rear lamps via contact 40 and the turn-indicator switch 94, and to the lamp 76 via contact 42, the other terminal of the lamp being earthed through the second part of the switch and contact 48. When the emergency switch is off, as shown, power is supplied through the ignition switch 82 to contact 46 of the emergency switch and then through lamp 76 and switch 94 to the two rear lamps in parallel; the current flowing is sufficient to illuminate lamp 76 but not the rear signal lamps 112 and 116. If the turn switch 94 is operated to energize one of the rear signal lamps, the circuit is still completed through the other rear lamp, so that if lamp 76 goes out the other rear lamp is faulty. If the brake switch 68 is closed, the lamp 76 is short-circuited and should go out.
Patent GB-313691-A (GB)
Title: Improvements connected with electric heating elements
IPC: H05B3/46
Filed: 1928-04-16
Abstract: 313,691. Santon, Ltd., and Sanders, H. C. April 16, 1928. Wire resistances, encased, cored.-A spiral resistance 4 is wound on a core and inserted into an insulated metal jacket 2. The core is removed and the spiral expands against the surrounding insulating wall 3, a second tubular insulator 6 is then inserted to cover the axial return lead 5 of the spiral. Both the inner and outer insulating tubes may be in short sections.
Patent GB-727587-A (GB)
Title: Process for scrubbing impurities from gases, more especially from carbon dioxide produced by fermentation
IPC: C01B32/50
Filed: 1952-05-02
Abstract: Carbon dioxide produced by fermentation is freed from impurities such as fusel alcohols, thioethers, mercaptans, disulphides, hydrogen sulphide, skatole and cadaverine by bringing the gases into contact with a solution of formaldehyde in sulphuric acid, substantially free of water.  The gas-washing liquid may be prepared by introducing gaseous formaldehyde into concentrated sulphuric acid or by dissolving solid para-formaldehyde in concentrated sulphuric acid. Sulphur dioxide contaminant may be removed by a prior passage of the gas through a tower containing wetted limestone and after treatment with the formaldehyde sulphuric acid mixture the gas may be passed through a further scrubber containing concentrated sulphuric acid to remove traces of formaldehyde.  If the latter purification step is admitted the gas contains small quantities of formaldehyde or its oxidation product, formic acid, and this gas may be used in the production of dry ice or in the production of Seltzer water.ALSO:Gases produced by fermentation are freed from impurities such as fusel alcohols, thioethers, mercaptans, disulphides, hydrogen sulphide, skatole and cadaverine by bringing the gases into contact with a solution of formaldehyde in sulphuric acid, substantially free of water.  The process is particularly applicable to carbon dioxide. The gas washing liquid may be prepared by introducing gaseous formaldehyde into concentrated sulphuric acid or by dissolving solid para-formaldehyde in concentrated sulphuric acid.  Sulphur dioxide contaminant may be removed by a prior passage of the gas through a tower containing wetted limestone and after treatment with the formaldehyde/sulphuric acid mixture the gas may be passed through a further scrubber containing concentrated sulphuric acid to remove traces of formaldehyde.  If the latter purification step is admitted the gas contains small quantities of formaldehyde or its oxidation product, formic acid, and this gas may be used in the production of dry ice or in the production of Seltzer water.