baber/WOPTO huggingface dataset:
Patent GB-1114471-A (GB)
Title: Group teaching machine
IPC: G09B7/073
Filed: 1964-04-08
Abstract: 1,114,471. Teaching apparatus. K. HOLLING. 8 July, 1965 [8 April, 1964], No. 14427/64. Heading G5G. A teaching apparatus comprises monitor units MU, one for each student, each connected electrically to a separate 12-way connector 35 on a control consul CO. The control consul includes six selector switches 21 corresponding to possible answers A-F, and the monitor units each comprise a corresponding set of six answer switches 7. A question and six possible answers are presented to a group of students, e.g. by means of a slide projector and screen. The teacher sets each selector switch to one of three positions g (green), a (amber), r (red) indicating that the answer is correct, almost correct, or incorrect respectively. When a student selects his answer by depressing a switch 7, an appropriate (green, amber or red) lamp 9 on the unit and a corresponding lamp 19 on the consul are illuminated. The control consul further includes a percentage meter 38 which indicates the percentage of correct answers.
Patent GB-555312-A (GB)
Title: Improvements in or relating to cooling devices for the oil systems of internal combustion engines
IPC: F01M5/00
Filed: 1941-11-12
Abstract: 555,312. Fluid-pressure servomotor-control systems; valves. BRITISH THERMOSTAT CO., Ltd., MARTIN-HURST, W. F. F., and MARTIN, J. F. Nov. 12, 1941, No. 14578. [Class 135'] [Also in Group XIII] In an oil cooler with means responsive to the oil pressure for opening the inlet f to a passage byepassing the cooler and for actuating a piston q opening and closing the air shutters, the pressure acting on the piston is so controlled by a thermostat y that the shutters remain closed until the circulating oil reaches a predetermined temperature. Hot oil from a circulation pump enters a chamber a through a connection b and is prevented from flowing freely through the cooler at starting up by the thick oil therein ; the consequent increase of oil pressure first opens a non- return valve v at the top of a thermally-operated sleeve valve I and then opens the inlet valve f to the byepass. The valve v allows the oil to enter a cylinder to push outwards a piston q carrying a rod connected to the air shutters, which are then closed. As the temperature of the circuiting oil rises, the pressure in the chamber a falls, the valve v then closes to trap oil in the cylinder. When the oil temperature reaches a certain point, the thermostat y rotates the sleeve valve l to open a port o in the cylinder, thus releasing the pressure of the trapped oil on the piston, which is then acted upon on one side by the oil inlet pressure of the cooler and an the other side by the oil outlet pressure, communicated through a port t open to the byepass. Specification 546,452 is referred to.
Patent GB-334275-A (GB)
Title: Spacing machine for sewing seeds
IPC: A01C7/04
Filed: 1930-02-10
Abstract: 334,275. Roche, J. J. Feb. 10, 1930. Seed drills.-A machine for sowing seeds at regular intervals comprises an interchangeable dredging belt or chain b mounted on corresponding wheels d, e in a seed box M and carrying spaced buckets or cups c standing out on spurs of wire or the like, and of a size and shape suitable for the particular kind of seed to be sown. The dredger discharges the seeds into a tube f leading to a shoe g. The seed box used corresponds to the kind of seed to be sown and is provided with a charging opening n and with a screw cap or plug p to facilitate emptying. The belt may be driven from the travelling wheels or roller r by change-speed gearing, or through a connecting-rod a. The cups c may be interchangeable and may each carry one, two, or more seeds.
Patent GB-1385491-A (GB)
Title: Apparatus for use in removing tyres from and mounting tyres on wheel rims
IPC: B60B30/00
Filed: 1971-05-12
Abstract: 1385491 Tyre fitting and removal DUNLQP Ltd 4 May 1972 [12 May 1971] 14605/71 Heading B7C In apparatus for fitting and removing tyres including a wheel support wheel rim flange gripping means are employed which consist of a plurality of arms 4 each provided with a claw 2 for engaging the rim and having mounted thereon an extension block 1 which is used to support the adjacent lower tyre bead and side wall away from the wheel bead seat. The block may be pivoted at 3 to the claw and locked in its in-use position by a spring-loaded ball catch 7 or removably connected by screws 10, 11. Blocks of varying size may be used according to the tyre size.
Patent GB-202733-A (GB)
Title: Improvements in or relating to directional wireless systems and apparatus
IPC: G01S3/42
Filed: 1922-05-25
Abstract: 202,733. Robinson, J., Crowther, H. L., and Derriman, W. H. May 25, 1922. Directive signalling: signalling to or from aircraft.-Received signal energy is caused to operate pawl-and-ratchet mechanism, or to control an electric motor for the purpose of automatically rotating one or more loop aerials into the critical directive position. As shown in Fig. 1, the two leads 13, 14 from a loop aerial 6 are connected to an amplifier 17, and the strengthened currents flow through two relays 15, 16 of which 15 is the more sensitive. Weak currents accordingly close an armature contact 20, 18 and energize an electromagnet 7 which causes a pawl carried by an armature 9 to actuate ratchet mechanism (not shown) so as to rotate the loop 6 in a certain direction. For a " minimum " directional system this movement will continue until practically no energy is being received by the aerial, a final movement to the dead centre being obtained by using a slow-acting relay. Should the rotation imparted to the loop 6 by the electromagnet 7 result in an increase of current strength, the rotation continues until the received energy becomes sufficient to operate the less-sensitive relay 16. The resulting movement of the armature 21 breaks the circuit of the electromagnet 7 and brings a second, similar electromagnet 8 into play so as to reverse the rotation of the loop aerial. In each case the circuit of the electromagnet 7 and 8 is automatically broken at each operative stroke by the back contacts 11, 12. A third relay may be arranged so as to bring the loop into the desired mimimum position with the least amount of angular movement, should the initial rotation result in an increasing aerial current. Instead of directly rotating the loops, the pawl-and-ratchet mechanism may be arranged to control an ordinary electromotor geared to the spindle carrying the loops. In this instance the pawls rotate a two-way commutator which reverses the motor as the received energy increases or diminishes, provision being made for maintaining the rotation until the correct critical point has been reached. The invention is equally applicable to " maximum " or to " maximumminimum " directive aerial systems, or to the Bellini-Tosi radiogoniometer. Fig. 5 shows the arrangement as applied to a directive system in which two aerials 36, 37 are rotated until they each receive equal amounts of energy. The opposed operating windings 47, 48 of a polarized relay 46 are alternately energized by a, changeover switch 49 which is continuously reversed in synchrony with the main change-over switch 38. A moving-coil relay may be used instead of the polarized relay 46. The invention may be applied to an aeroplane or like directional installation in which one of the coils may be wired in the body of the moving craft.
Patent GB-1133038-A (GB)
Title: A process for dyeing acrylonitrile copolymer fibres
IPC: D06P1/653
Filed: 1967-03-30
Abstract: 1,133,038. Dyeing acrylonitrile copolymers. JAPAN EXLAN CO., Ltd. 30 March, 1967 [30 March, 1966], No. 14690/67. Heading D1B. Acrylonitrile copolymer fibre is coloured by immersing said fibre in a dyebath containing at least one cationic dyestuff, at least one water-soluble salt of either a saturated or ethylenically unsaturated aliphatic monocarboxylic acid having at least 11 carbon atoms or a saturated or ethylenically unsaturated aliphatic di-carboxylic acid having at least 4 carbon atoms in the molecule in an amount of at least 5% of the weight of the fibres and a non-ionic surface active agent, adjusting the pH of the bath to an alkaline value, gradually raising the temperature of the dyebath to the b.p. thereof and thereafter gradually reducing the pH of the dyebath to an acid value. The salts used may be sodium, potassium or ammonium and preferably the initial pH is 8-9 and the final pH 3-4.
Patent GB-641603-A (GB)
Title: Improved current stabilizing means employing reactors on saturable cores of magnetic material
IPC: G05F1/32
Filed: 1947-06-04
Abstract: 641,603. Automatic regulation. ELECTRO METHODS, Ltd., and WILLHEIM, R. June 4, 1947, No. 14751. [Classes 38 (ii) and 38 (iv)] [Also in Group XXXIX] To stabilize the current drawn from an A.C. source, a saturable reactor is connected in series with the source, and the D.C. saturating flux is regulated in accordance with the A.C. voltage across the reactor. As shown, Fig. 3, the A.C. source 27 supplies the load 30 through the saturable reactors 21, 22, having opposed A.C. windings 23, 24 and D.C. saturating windings 25, 26 and 31, 32. The load 30 may comprise a rectifier supplying a D.C. load. Windings 25, 26 are adjustably energized from the battery 28 and the windings 31, 32, opposed to 25, 26, are excited by the voltage developed across 23, 24 and rectified at bridge 33. The curve a, Fig. 2, represents the known function of current through windings 23, 24, with respect to the voltage V of source 27, with only the saturation winding 25, 26 energized; the section all of curve a represents a zone of approximate current stabilization. The addition of the windings 31, 32 effects a displacement of curve a to c where c<SP>11</SP> represents the zone of substantially constant source current. To counteract the effect of frequency variations at the source, a choke coil may be inserted in series with 33 ; also, the output of the latter may be injected direct into the windings 25, 26. By overcompensation, the windings 31, 32 may cause the current drawn from the source to fall as the source voltage rises. When used as a magnetic amplifier the D.C. source 28 is replaced by a thermocouple or photocell and further D.C. winding is added, energized through a rectifier in series with the A.C. windings of the reactors. A capacitive impedance is inserted in series with the source to maintain the current stabilization range fixed irrespective of changes of the voltage at 28.
Patent GB-855863-A (GB)
Title: Improvements in or relating to the uniting of moulded articles comprising sand and abinder
Inventor: BAILEY DENNIS FREDERICK
IPC: B22C23/00
Filed: 1956-05-11
Abstract: 855,863. Moulding-processes. BAKELITE Ltd. May 3, 1957 [May 11, 1956], No. 14775/56. Class 83 (1). Components moulded from sand and a binder, such as shell-mould or core-components, are secured together by heating at least one of the surfaces to be united, interposing one or more pellets comprising a thermosetting syntheticresin between said surfaces, and then pressing the components together to effect bonding. The pellets may include a filler, e.g. wood-flour or chain-clay, or a plasticizer, or both. In one embodiment, a heated shellmould section is pressed face downwards against application rods 23 arranged in a desired pattern in a base-board 21. Springs 27 are thereby depressed, and the upper-pellet of each column 24 comes into contact with the mating-surface of the component, fuses thereto, and comes away with the component when the latter is removed. The component, with the adhering- pellets, is placed in registry with the heated component to which it is to be bonded, and the two components placed on spring-loaded fingers in a perforated platen which is raised to bring the components into contact with an upper-set of spring-loaded fingers, and pressure applied. Reference has been directed by the Comptroller to Specification 715,293.
Patent GB-560957-A (GB)
Title: Improvements relating to welding rods
IPC: B23K35/30
Filed: 1942-10-21
Abstract: 560,957. Fluxes. MOND NICKEL CO., Ltd. Oct. 21, 1942, No. 14791. Convention date, Oct. 28, 1941. [Classes 82 (i) and 82 (ii)] [Also in Group XXII] A welding electrode has a nickel core, and a coating containing as essential ingredients an alkali metal fluoride, an alkali earth metal fluoride, titanium, dextrine, and water compounded so as to dry without cracking, to adhere firmly to the electrode, and to burn off substantially uniformly when the electrode is used. The core will usually be at least 98 per cent nickel, but titanium up to 2 per cent, silicon up to 0.8 per cent, and magnesium up to 0.3 per cent may be included. The dextrine, which may be of potato or tapioca origin, may amount to 6-11 per cent by weight of the coating, the fluorides are preferably calcium fluoride and sodium fluoride, and carbon may be included in the coating. The titanium in the coating may be added as a powdered nickeltitanium alloy, a suitable alloy containing 25-28 per cent titanium, 5-7 per cent aluminium, 2-5 per cent iron, and 2-3.5 per cent silicon, the balance being nickel. A ratio of calcium fluoride to sodium fluoride of about 70 : 30 gives a flux which is insensitive to variations in the extrusion pressure. In making the electrode, a homogeneous mixture is made of the calcium fluoride, sodium fluoride, titanium and carbon, and this mixture is combined with dextrine which has been mixed with water for at least 15 minutes at 155‹-185‹ F., the plastic mass being extruded around the electrode, and the extruded coating dried. The coating may contain 50-90 (preferably 60-80) parts by weight of calcium fluoride, 50-10 (preferably 40-20) parts sodium fluoride, 10-30 (preferably 20-25) parts titanium, 0-20 (preferably 2-8) parts carbon, and dextrine amounting to 6-11 per cent by weight of the coating.
Patent GB-354790-A (GB)
Title: Improvements in telephone and like transmission systems
IPC: H04B3/20
Filed: 1930-05-14
Abstract: 354,790. Two-way repeaters. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych. London.- (Western Electric Co., Inc. ; 195, Broadway, New York, U.S.A.) May 14, 1930, No. 14813. [Class 40 (iv).] In a two-way repeating system having echosuppressing apparatus located at or near each end, transmission in either path normally disables the other, but should transmission begin at both ends simultaneously, both paths are maintained in operative condition. At the west end of the system, the control apparatus comprises a relay R2 operated by currents over the path LL1 and adapted to short-circuit the path LL, and a relay R1 having opposing windings connected to both paths and adapted to prevent short-circuiting of the path LL. Similar control apparatus is located at the east end of the system. The purpose of the opposing lower winding of relay R1 is to prevent its possible operation by echo-currents before relay R2 pulls up. A delay circuit D may be inserted as shown. If two or more transmission circuits equipped in this manner are connected in tandem, the control apparatus at the junction points is removed. The invention may be applied to systems with a radio or submarine cable link in place of the four-wire section LL, LL1.
Patent GB-528999-A (GB)
Title: Improvements in handles, knobs, and like devices
IPC: F16B9/02
Filed: 1939-05-19
Abstract: 528,999. Knobs and handles for furniture; fastenings. TINNERMAN, A. H. May 19, 1939, No. 14949. Convention date, May 20, 1938. [Class 52 (i)] [Also in Group XXV] Knobs and handles of plastic material are provided with a projecting stud 23 of D-section and are secured to a panel S by passing the stud through an-aperture p of similar section and pressing on to the stud a locking plate comprising a dished portion 10 having tongues 11, 12 adapted to bite into the shank of the stud. To release the handle &c. the locking plate is rotated so that the tongues 11, 12 are brought normal to the flattened portion of the stud as shown in Fig. 5, when it may be slipped off.
Patent GB-589293-A (GB)
Title: Production of laminated structures
IPC: B27D1/04
Filed: 1944-08-04
Abstract: 589,293. Compound sheet materials; knitted fabrics. SCIENTIFIC & INDUSTRIAL RESEARCH, HONORARY ADVISORY COUNCIL FOR. Aug. 4, 1944, No. 14961. Convention date, Aug. 6, 1943. [Classes 74 (ii), 96 and 140] [Also in Groups IX, XI and XXIII] Laminated structures, especially plywood, are formed by applying to the laminae an adhesive comprising 100 parts of synthetic resin adhesive with 20-100 parts of acetylene black to make the adhesive electrically conductive, assembling the laminae in a press and passing an electric current by direct conduction through the adhesive to set the assembly. Acetylene black is mixed with dry powdered synthetic resin and the mixture is preferably formed into a liquid dispersion with water, alcohol or toluene and applied to the laminae 1. Metal sheet or wire electrodes 4 are inserted along opposite edges of the conductive adhesive layers, and a current at 220 volts or less is passed therethrough. The layers may be formed by coating adjacent surfaces of laminae with synthetic resin and placing between them a fibre sheet rendered conductive by incorporated particles of acetylene black. A wood veneer adhesive of the film type may be made by impregnating a base such as a paper or fabric with the adhesive dispersion and allowing it to dry, or an aqueous dispersion of acetylene black is first applied and then a dispersion of synthetic resin to form the adhesive layer. The acetylene black may be incorporated during manufacture of the paper. The fabrics may be of asbestos or glass. The fabric or paper impregnated sheets may be superposed and sheet electrodes applied to top and bottom for passage of current to cure the assembly. The conductive adhesive layers may comprise woven or knitted fabric with 4-20 meshes to the linear inch soaked in the dispersion. Thermosetting resins such as phenol formaldehyde, urea formaldehyde and melamine or mixtures thereof, or thermoplastic resins such as polyvinyl formal or polyvinyl butyral may be used. With wooden laminae less than 3/8 of an inch thick, only alternate glue lines need be made conductive. The invention is applied to plywood arch constructions, trestle timbers for roads and bridges, rail-road ties, keels and framing members for ships, aircraft wing spars, propellers and compregnated wood.
Patent GB-581050-A (GB)
Title: Mounting the windscreen on the fuselage of an aeroplane
IPC: B64C1/14
Filed: 1944-08-07
Abstract: 581,050. Windscreens for aircraft. MARTIN, J., and MARTIN-BAKER AIRCRAFT CO., Ltd. Aug. 7, 1944, No. 14998. [Class 4] The windsoreen 1 of an aeroplane cockpit is formed as a separate rigid structure secured to the fuselage at three individual points of attachment by means of feet 8, 13, at the centre and sides of the screen respectively, the gap between the lower edge of the screen and the fuselage being covered by a flexible metal fairing 16 secured in a recess 17 along the bottom edges of the windscreen frame members. At the point of attachment of the front foot 8 the fuselage is strengthened by a metal frame 12.
Patent GB-1439553-A (GB)
Title: Method and an apparatus for measuring relative phase shift between two pulse trains
IPC: G01R25/00
Filed: 1974-04-04
Abstract: 1439553 Measuring wind velocity and direction S G SEM-SANDBERG 4 April 1974 [16 April 1973] 15016/74 Headings G1A and G1N [Also in Division H3]  In an anemometer, a permanent magnet 7 is rotated by cups 21 past a fixed pick-up 4 and a second pick-up (5)' positioned by the vane 18 to generate two trains of pulses of equal but variable frequency dependent on the wind speed and relatively phase displaced depending on the wind direction. The pick-ups may be reed switches or series-connected pairs of coils (10, 11; 8, 9), Fig. 3 (not shown). The skirt 2" rides on balls 20. In another arrangement, Fig. 1(b) (not shown), the magnet is replaced by an arm (6) the pick-ups being switches (4, 5). Photo-electric arrangements. In Fig. 5 the cups rotate a counterbalanced arm carrying light emitting diodes 15', 15" co-operating with photodiodes or photo-transistors 14', 14". Alternatively, the cups may rotate an arm (12), Fig. 4 (not shown), to interrupt U/V paths between emittersensor pairs. The frequency and phase of the pulse trains is measured digitally [Division H3].
Patent GB-559192-A (GB)
Title: Improvements in or relating to clothes pegs
IPC: D06F55/02
Filed: 1942-10-27
Abstract: 559,192. Clips; . clothes pegs. SINCOCK, R. J. E. Oct. 27, 1942, No. 15081. [Class 44] A clip for use as a clothes-peg and of the kind provided: with a hook by which the device is suspended on the line comprises a member having an integral hook 2 at one end and a jaw member 3 at the other co-operating with a pivoted spring-loaded jaw member 6, the hook being disposed so that the meeting faces of the jaws between which the clothes are clamped hangs vertically. The jaws may be corrugated to improve the grip and may have recesses 5 to receive a hem &c. or, if the clip is applied to Clamp the article directly on the line, to receive the line and the fold of the article. A pivoted spring- loaded member 9 having a surface 10 which clamps the line in the hook 2 may be provided, to prevent movement of the device along the line. The spring may be lacquered or otherwise coated and the device may be of moulded plastic material. 1. As described one part comprises two side members 1 spaced apart and integrally connected by the hook portion 2, jaw 3, and cross pins 4, 8 serving respectively as fulcra for members 6, 9, which have recesses to receive them. Members 1 have opposed recesses 1a. with projections which retain the ends of a coiled torsion spring 12 the free ends 13, 14 of which bear respectively on arms 7, 11 of members 6, 9. Arm 11 preferably overlies arm 7 as shown so that jaws 3, 6 may be opened by pressure on arm 7 or members 6, 9 may be released simultaneously by pressure on arm 11.
Patent GB-502848-A (GB)
Title: Manufacture of water-soluble condensation products from aromatic aldehyde sulphonic acids
Filed: 1938-05-21
Abstract: 502,848. Making emulsions. GEIGY AKT.-GES., J. R. May 21, 1938, No. 15240. Convention date, May 24, 1937. [Class 1 (i)] [Also in Group IV] Emulsifying agents are prepared by condensing one molecular proportion of benzaldehyde mono or disulphonic acid with two molecular proportions of an aromatic hydrocarbon or a hydroaromatic hydrocarbon containing unsaturated bonds in the absence of water and in the presence of a condensing agent comprising a mixture of concentrated sulphuric acid and glacial acetic acid. The aromatic or hydroaromatic hydrocarbon may be replaced up to an equimolecular amount of a phenol having a free ortho or para position. The aromatic aldehyde may contain halogen atoms or nitro groups. In examples : (1) naphthalene is condensed with benzaldehyde- 2 : 4-disulphonic acid and the product then treated with 4-butyl-2-cresol ; (2) naphthalene is condensed first with 2-chlorbenzaldehyde- 6-sulphonic acid and then with diisobutylphenol; (3) tert: butyl cyclohexene is condensed with 2-chlorbenzaldehyde-5-sulphonic acid. The following components are also specified : chloramylphenol, cyclohexylphenol benzylphenol, 2-, 3- and 4-benzaldehyde sulphonic acid, 2: 5- and 2: 6-benzaldehydedisulphonic acid, amylnaphthalene, chlornaphthalene, phenanthrene, anthracene, tetrahydronaphthalene, methyl-tert :-butylcyclohexene, fenchene and abietene.