baber/WOPTO huggingface dataset:
Patent GB-305109-A (GB)
Title: Improvements in or relating to frame aerials as employed in the art of wireless telegraphy and telephony
IPC: H01Q7/00
Filed: 1927-09-27
Abstract: 305,109. Hesketh, B. Sept, 27, 1927. No Patent granted (Sealing fee not paid). Aerials.-A loop aerial comprises two sets of windings, one strung on a series of outer rods 5 supported between two circular end members 1 with an adjustable tensioning-gap 3, and the other strung on a series of inner rods 7 supported from the circular frame members by bolts and nuts 8, 9, 10, and in one instance from the base 2. The outer windings go to terminals 15 and the inner to terminals 17, whilst the circular supporting-members may also be used as a singleturn winding by means of the terminals 4. In assembly the outer windings are first wound around a spider former, the members 5 are next attached to the frame rings 1, and the latter are then expanded so as to tension the windings, the spider being removed. A similar procedure is adopted with the inner winding, the necessary tension being applied by means of the nuts 10, 11. The base may be in the form of a turntable with brush contacts.
Patent GB-1468897-A (GB)
Title: Device for cleaning the cooling oil for sprayed oil cooled electrical machines
IPC: H02K9/26
Filed: 1974-06-07
Abstract: 1468897 Centrifugal separator LICENTIA PATENT-VERWALTUNGS GmbH 7 June 1974 [20 June 1973] 25434/74 Heading B2P [Also in Division H2] Before being fed through spray nozzles 18 to cool an electrical machine, cooling oil is cleaned in a centrifugal separator 12 mounted inside a rotatable hollow shaft 6. The shaft 6 shown carries the rotor 7 of the machine and the whole assembly is intended for use in a vehicle, the cooling oil being the lubricating oil used in the vehicle. This oil is fed in at 13 and passes through a helical duct 5 to cool the machine stator. The oil is then fed into the centrifugal separator through ducts 15 inclined to the machine axis. The cleaned oil passes through a central duct 16 to the spray nozzles 18. The dirty oil leaves the machine by an outlet 19.
Patent GB-532597-A (GB)
Title: Improvements in telephony
IPC: H04J1/14
Filed: 1939-09-09
Abstract: 532,597. Valve relay circuits. PHILIPS LAMPS, Ltd. Sept. 9, 1939, No. 25503. Convention date, Sept. 12, 1938. [Class 40 (v)] [Also in Group XXXIX] In a receiving circuit for periodically-interrupted alternating current signals, the signal passes through a transformer T tuned by a condenser Cl to the primary frequency, e.g. 500 cycles, to a rectifying valve V, and the interruption frequency, 20 cycles, is applied through a voltage-doubling network of condensers C5-8 and rectifiers G1-4 to the grid of an amplifier V1 which controls the receiving relay Re. The negative grid bias Vg of the valve VI is increased by equal amounts at the first and second impulses, so that at the end of the second impulse the anode current is reduced sufficiently to release the relay Re. By adding additional condensers and rectifiers to the network the release of the relay may be further delayed. The circuit may be modified so that the signal increases the anode current to bring about the operation of the receiving relay.
Patent GB-189917-A (GB)
Title: An improvement in serving-trays
IPC: A47G23/06
Filed: 1921-09-28
Abstract: 189,917. Joseph, L. Sept. 28, 1921. Board games.-A tray is provided with a game board constructed in various ways on the upper or lower side or on both. The tray has on its under surface a series of hollows c<2> forming a solitaire board and on its upper side a chess board D. The tray may have applied to its under side round rails, wooden discs, &c. to raise the surface and protect it from damage. The edges or other parts of the tray may be provided with holes for the reception of pegs for scoring purposes.
Patent GB-322767-A (GB)
Title: Improvements in or relating to optical systems
IPC: G02B27/10
Filed: 1928-09-07
Abstract: 322,767. Astafiev, M. Sept. 7, 1928. Three-colour systems. - In optical systems, such as are described in Specification 251,027 for the production of a number of images for threecolour photography by means of reflecting surfaces on intersecting planes within a cubical prism, provision is made whereby the emergent imageforming light beam is maintained constant for rays of all inclinations by arranging that variations in the effective dimensions of the means defining the light pupil is accompanied by proportional variation in a similar sense in the effective dimension of the means defining the dark pupil. The resultant pupil is of annular form. This result is obtained by providing the periphery b of, the ring reflector B with an opaque hood member Z, the surface of which lies on lines touching both the front edge a of the aperture in the large reflector A and the periphery of the ring reflector B, and is directed away from the reflector A. The width of the hood member Z varies from a minimum at the line of intersection o to a maximum at the foremost point of the ring reflector B. The blind pupil is thus made concentric with the external pupil periphery determined by the opaque diaphragm t. A further correction or adjustment may be made by inclining this diaphragm t at a small angle to the vertical. In addition, an opaque tubular member z is provided passing through the centre of the system tangent to the apertures e, f, g of the reflector openings and ending behind the crossing planes on a plane normal to the axis of the system. In order that the effective pupil for the image formed to the left may also be compensated by varying the shape of that part of the ring reflector B lying behind the line of intersection of the planes so that it departs from a regular annulus to a symmetrical re-entrant form as shown in Fig. 8, so that in certain parts its width m1, parallel to the line of intersection y, y is less than the width of aperture provided in front of the edge a in the large reflector A. The manner in which the true form of the outline is determined is set out in the Specification.
Patent GB-1406233-A (GB)
Title: Metal derivatives of oxyacids
IPC: C08J7/05
Filed: 1972-06-02
Abstract: 1406233 Polymer compositions containing metal derivatives of oxy acids IMPERIAL CHEMICAL INDUSTRIES Ltd 11 Sept 1972 [20 July 1971 29 Oct 1971 4 Nov 1971 26 Nov 1971 (2) 20 Dec 1971 2 June 1972] 34012/71 50354/71 51293/71 55001/71 55002/71 58999/71 and 25857/72 Headings C3P C3R and C3T [Also in Division C2] Liquid compositions comprise a compound of iron and/or titanium or iron and chromium; a compound of the formula X<SP>1</SP>X<SP>2</SP>PO(OH), where X<SP>1</SP> and X<SP>2</SP> are hydrogen, hydroxyl or halogen, or X<SP>2</SP> may have the structure -OPO(X<SP>1</SP>)(OH); and a solvent comprising at least in part an organic component. In examples, compositions are described containing: partially condensed ethyl silicate (Example 19), tetraethyl silicate (Example 20), methyl triethoxysilane (Example 21), polyacrylic acid (Example 22), polyethylene oxide (Example 23), polyvinyl butyral (Example 24), polyvinyl acetate (Example 25), acrylonitrile-vinylidene dichloride copolymer (Example 26) and polyacrylonitrile (Example 27). The compositions are useful for coating various substrates, e.g. glass, metal, metal oxide, ceramic, polymeric, wood and paper substrates.
Patent GB-358667-A (GB)
Title: Improvements in direction signalling apparatus for use on motor-cars, motor-cycles and other road vehicles
IPC: B60Q1/34
Filed: 1930-08-30
Abstract: 358,667. Road-traffic signals on vehicles. GORDON, A. and BAINES, C., 6, New Yard, Forman Street, Nottingham. Aug. 30, 1930, No. 25921. [Class 118 (ii).] For manoeuvresignalling on road-vehicles, a hand A is mounted so as to be universally adjustable on a bracket C secured to the windscreen bv suckers D. The hand A is movable about a horizontal pivot G on a member F which is movable about a vertical pivot E.
Patent GB-169722-A (GB)
Title: Process for the purification of tannin
IPC: C14C3/12
Filed: 1921-10-01
Abstract: Tannins, preferably those extracted from the raw materials with the aid of acids, are purified by conversion, by the action of bases or basic compounds, into insoluble or difficulty soluble salts which are freed from impurities by washing with water or organic solvents, and then decomposed by acids or in some cases by salts; the tannin solution is finally evaporated.  As basic compounds may be used magnesium oxide, hydroxide, or carbonate, or the corresponding barium, strontium or calcium compounds, and two or more bases may be used successively or conjointly.  For the decomposition of the tannin compounds, acids or salts which will give insoluble compounds with the base or bases employed are preferably used.  The crude tannins may be previously treated with reducing agents, such as sulphurous acid, hydrosulphurous acid or "other acids of sulphur," but preferably with volatile reducing acids.
Patent GB-669672-A (GB)
Title: Improvements in or relating to ship propulsion apparatus
IPC: B63H11/12
Filed: 1949-10-11
Abstract: 669,672. Propelling ships. SOC. POUR L'AMELIORATION DE LA PROPULSION A BORD DES NAVIRES SOC. AR.L. Oct. 11, 1949 [Oct. 25, 1948; Sept. 22, 1949], Nos. 26082/49 and 26083/49. Class 114. A ship is propelled by jets of gas-water mixture ejected from nozzles 10, these being first divergent and then convergent in going from forward to aft. Compressed gas supplied from a compressor 2 is admitted at the widest sections of the nozzles through pipes 8. For starting the ship compressed gas is admitted to pipes 4 passing upwardly from the bottom of the ship.
Patent GB-618275-A (GB)
Title: Improvements in or relating to electric socket contact elements
IPC: H01R13/18
Filed: 1946-08-30
Abstract: 618,275. Two-part couplings. GENERAL ACCESSORIES CO., Ltd., and BLACK, R. C. Aug. 30, 1946, No. 26146. [Class 38 (i)] A split socket I is provided with a split spring ring 2, the ends of which either engage with one another or with co - operating parts on the socket to limit the separating movement of the spring ends and thereby the expansion of the spring. The split socket 1 comprises semicylindrical parts 3 encircled by a flat spring ring 2, on the ends of which lugs 6 are normally spaced from the out-pressed tongues 5 on the socket, and are engaged by them to limit the expansion of the spring and thereby the socket. In alternative constructions (Fig. 2, not shown), the lugs are replaced by wide slots which surround the tongues; or (Fig. 3, not shown) the socket is provided with a wide slot in which the inturned ends of the ring move. In a modification, Fig. 4, a slot 11 in one end of the ring 2 receives the other end 10 bent to engage the ends of the slot ; alternatively, the flat spring is replaced by a round wire (Fig. 5, not shown). The socket may be riveted in a recess in the body of a coupling and connected to a binding-post for the conductor wires, the ring being supported on an additional pair of tongues, Figs. 6, 7 (not shown).
Patent GB-1344358-A (GB)
Title: Brake control device
IPC: B60T8/52
Filed: 1971-04-19
Abstract: 1344358 Antiskid braking systems OREGACIFTE-COMPAGNIE EUROPEENNE D' ELECTRONIQUE ET DE MECANIQUE 19 April 1971 [7 April 1970] 26275/71 Heading F2F A vehicle antiskid braking system comprises a master cylinder 1, an hydraulic circuit and brake cylinder, a pressure gauge 3 which converts the effort exerted on the pedal into an analogue voltage P, a bi-stable circuit 4 which assumes a first state 1 when the brake is applied and a second state O when there is no braking effort, an integrator 5 which receives the output voltage from the bi-stable and at a second input E2 the analogue voltage and produces an output voltage at E3 which rises to a voltage which is a function of the analogue voltage in the 1 condition and is a decreasing voltage in the O condition, a differential amplifier 6 receiving the output at E3 and a voltage CF input E4 proportional to the braking torque exerted on the braked wheel and measured by a strain gauge 70 the amplifier having two outputs the first S1 of which is activated when P-CF is positive and the second S2 when the difference P-CF is negative, neither being activated if P=CF; two control amplifiers 7, 8 one controlling a valve 9 connecting the wheel brake cylinder with an accumulator 10 and the other controlling a valve 11 which discharges the fluid from the brake cylinder inflow or outflow from the wheel cylinder being impossible if neither output is activated. The master cylinder 1 has tandem pistons 200, 300, a stem 60 of piston 200 sliding in a hollow stem 80 of piston 300 and the stem 80 having an upset portion 90 which engages the stem of a tilting valve 2000 controlling flow from the reservoir 140. Fluid is supplied to the space between the pistons via a solenoid operated valve 170 and fluid is supplied to the wheel cylinder via a solenoid-operated valve 330 having as many elements as there are braking circuits. In addition to valve 2000 communication can also be cut-off by a valve 230 fixed to a float 240 and carrying a rod 250 and disc 260 which can establish electrical contact between flexible strips 270, 280, fixed to the reservoir filler cap, to activate a warning light. In a modification brake torque is measured.
Patent GB-718440-A (GB)
Title: Improvements in polarizing microscopes
Inventor: TAYLOR EDWARD WILFRED
IPC: G02B21/00
Filed: 1951-11-09
Abstract: 718,440. Microscopes. COOKE, TROUGHTON, & SIMMS, Ltd. Nov. 4, 1952 [Nov. 9, 1951], No. 26322/51. Class 97(1) In a polarizing microscope for examining an object by reflected light, light is concentrated through a polarizer 9 on to a diaphragm 1 and collimated by a lens 2, the parallel beam being reflected by the beam splitter 3 through the lens 7 and objective 4 on to the object 5, the lens 7 being chosen so that light reflected from the object falls on the beam splitter in a parallel beam, but after transmission is focused by a lens 8 in the normal image plane 6 of the objective through an analyser 10.
Patent GB-190830-A (GB)
Title: Improvements in and relating to bed-lasting machines
IPC: A43D23/02
Filed: 1921-10-06
Abstract: 190,830. Ward, A., and Fochin, F. H. Oct. 6, 1921. Lasting.-An end-lasting mechanism of the type capable of being moved in a plane transverse to the plane of the sole of the last against the action of spring means is arranged so that by actuation of a treadle the wiper plates may be swung about a fulcrum located at a considerable distance from the wiper plates. The lasting head 9 is supported on a pivot 10 centrally of a bridge piece 11 one end of which is pivoted at 13 to a rod 12 whose lower end is pivoted to the frame at 12a, and the other end of which is pivoted at 15 to a composite rod 14. The rod 14 is rotatable within the sleeve 14b and includes a hand-wheel 27 and a screwed end which enters a nut 28 screwed upon a sleeve 29, thus allowing adjustment of the length of the rod 14. The sleeve 29 has a spindle which projects through a slot in a plate. 8 and is pivoted to an arm 24 carrying a treadle 26. A spring 32 operates between a nut 30 and a loose collar 33 to maintain the spindle, and so the head 9, in its most elevated position. Mounted on the spindle 13 is a plate 19 to which are connected screwed adjusting rods 16, 21 for adjusting respectively the longitudinal and angular position of the head with respect to the last. Heel and toe posts 4 and 4<a> are pivoted to the frame and adjustable in height. In operation the position of the head is adjusted by the hand-wheels 22, 23, and the head is then turned about the pivot 13 by depressing the treadle 26 against the action of the spring 32, in order to press the wipers against the last whilst the lasting, by the usual wipermechanism in the head 9, is in progress.
Patent GB-482501-A (GB)
Title: Curtain ring fasteners
IPC: A47H19/00
Filed: 1937-09-30
Abstract: 482,501. Hooks. ROSIER, F. G. Sept. 30, 1937, No. 26465. Convention date, Nov. 18, 1936. [Class 89 (ii)] [Also in Group XIV] A hook for retaining in place the end ring 5 on a curtain rod 4 comprises a resilient wire or strip 1 provided at one end with a clip 2 adapted to grip the inner and outer faces of the hollow rod at its end, and having an inwardly-facing open hook 3 at the other end adapted to engage the ring.
Patent GB-1141826-A (GB)
Title: A system for retarding railway wagons, particularly in marshalling yards
IPC: B61K7/00
Filed: 1966-06-14
Abstract: 1,141,826. Tractor brakes. ALLMNNA SVENSKA ELEKTRISKA A.B. 14 June, 1966 [15 June, 1965], No. 26475/66. Heading F2E. A retarder system for railway wagons comprises a cylindrical rotatable unit 3 positioned parallel to a track 2a, said unit being provided with a helical flange 4, which is adapted to be engaged by the wheel 1 of a passing wagon thereby rotating the unit, and being provided with hydraulic retarding means arranged to give a braking effect dependent on the speed of rotation of the rotatable unit, said effect being negligible at low speeds. The hydraulic retarding means may be contained within the cylindrical unit and take the form of an axial piston pump provided with suitable valves and arranged to pump fluid through a throttled opening on rotation of the unit 3. By providing a series of rotatable units and by varying the throttle openings thereof so that each has a different limit of rotational speed below which the induced retarding effect is negligible, the desired running out speed of railway wagons in marshalling yards may be achieved. As shown, the unit is only effective for wagons passing from right to left. To enable wagons or engines to pass unimpeded from left to right, the unit is supported by a pair of links 6 allowing the unit to pivot downwardly out of the way. Alternatively, the unit may be lengthened and provided with a left hand helical flange 4 at one end and a right hand flange at the other so that it is effective regardless of the direction of wagon approach, the unit being provided with a return spring.
Patent GB-931278-A (GB)
Title: Improvements in or relating to television systems
Inventor: JESTY LESLIE CONNOCK
IPC: H04N3/30
Filed: 1959-08-04
Abstract: 931,278. Television. SYLVANIA-THORN COLOUR TELEVISION LABORATORIES Ltd. Aug. 2, 1960 [Aug. 4, 1959], No. 26606/59. Class 40 (3). In a television picture reproducing device utilizing either a scanning device (e.g. a cathoderay tube) or a mosaic of individually-excitable light-producing devices (e.g. a plurality of electroluminescent cells) the picture is reproduced in sequentially derived lines of dots having the spacings shown by the dimensions P and S in Fig. 1. When the reproducing device is a cathode-ray tube the dot pattern may be produced by cyclically varying the scanning velocity of the electron beam (e.g. by the addition of a high-frequency sawtooth wave to the normal deflection wave to produce bright spots (Fig. 2, not shown) or by applying " spot wobble " transverse to the direction of line scanning (Fig. 3, not shown), or by periodically interrupting the beam, the actual raster in each case being a line sequential one. When the reproducing device comprises a plurality of electroluminescent cells the latter may be arranged in the pattern shown in Figs. 4 and 5, the cells 12 being excited by the application of suitably commuted television signals between the electrodes 11 and 13. In the case of the cathode-ray tube reproducers in which the dot pattern is produced by " spot-wobble " transverse to the direction of line scanning the dots may be made more intense by reducing the beam velocity (in the line scanning direction) in the position of dot production by the application of " spot wobble " in the line scanning direction and/or by the addition of suitable harmonics of the fundamental to the transverse " wobble " waveform. For colour reproduction suitable filters may be employed or the dots may themselves be produced in colour. Specifications 850,024, 864,233 and 931,277 are referred to.
Patent GB-362937-A (GB)
Title: Improvements relating to water heaters
IPC: F24H9/00
Filed: 1930-09-08
Abstract: 362,937. Internally fired hot water boilers; radiator stoves. BESSON, J. V. H. and RADIATEURS DU DOCTEUR SOC. ANON., 59, Rue Gambon, Bourges, Cher, France. Sept. 8, 1930, No. 26753. [Class 64 (i).] In a water heater having a'horizontal furnace flue a, the part of the flue behind the furnace space a1 is formed deep depressions d, Fig. 3, forming water-filled baffles directing the furnace gases through the flue in a sinuous course. Movable baffles are provided in the rear of the flue. A baffle may be screw-shaped and may engage in helical corrugations in the rear of the flue. The flue may be secured by rings b1 screwed into the boiler walls. In a radiator stove, sliding dampers n, Fig. 7, may be moved into openings in the waterfilled baffles d at the rear of the furnace flue. Specification 336,389, [Class 126, Stoves &c.], is referred to.
Patent GB-264432-A (GB)
Title: Improvements in and relating to alarms
IPC: G08B15/00
Filed: 1926-10-26
Abstract: 264,432. Thorpe, F. E., Thorpe, O. F., and Trautlein, F. J. Oct. 26, 1926. Burglar alarms.-An explosive alarm comprises a support 1, hammers 5 moving in a curved path under the action of springs 6, holding means 11 for cartridges, triggers 14 for the hammers, and a lever 20 pivoted between its ends and arranged so as to be moved by the opening of a door &c. to release the triggers. The triggers pass through holes in the support 1 and are prevented from moving by levers 17 until these levers have been moved by the lever 20, and the triggers are then engaged successively by an arm 26 carried by the lever. One or both ends of the lever 20 carry an extension 22 that is engaged by the door B, or is turned back to render the alarm inoperative, or the lever may be connected to the door by a cord 27.
Patent GB-1100709-A (GB)
Title: Two-stage purification of fibrous cellulose material
Inventor: YORSTON FREDERICK HARRISON
IPC: D21C9/14
Filed: 1965-06-25
Abstract: Pulp, e.g. pulp obtained by the kraft and sulphite processes, is bleached by a process in which in a first stage the fluffed cellulosic pulp at a consistency of 20-60% by weight is treated with chlorine dioxide diluted to less than 100 m.m. mercury partial pressure with air, steam or an inert gas, e.g. nitrogen, for from 20 seconds to 60 minutes at 15 DEG -100 DEG C, is washed and in a second stage is treated at a consistency of 5-50% by weight with a solution of a peroxygen compound, e.g. sodium peroxide, benzoyl peroxide, peracetic acid or hydrogen peroxide, having a peroxygen equivalency of 0.025-1.5% by weight of the dry pulp, at a temperature up to 100 DEG C for 1/2 -5 hours.
Patent GB-1220795-A (GB)
Title: Pigment formulations
IPC: C08J3/22
Filed: 1969-05-29
Abstract: 1,220,795. Polyolefin compositions. BAD ISGHE ANILIN- & SODA-FABRIK A.G. 29 May, 1969 [30 May, 1968], No. 27184/69. Heading C3P. Pigment formulations for colouring thermoplastics comprise (A) 10 to 70 weight per cent of pigment, (B) 15 to 89 weight per cent of polyolefin and (C) 1 to 15 weight per cent of an acid amide of a C 8-22  fatty acid and an amine of formula X-NH-ROH where X is hydrogen or -ROH and R is an at least C 2 , preferably C 2-4 , hydrocarbon radical. Specified pigments are titanium dioxide, cadmium oxide, iron oxide, carbon black and azo, phthalocyanine, quinacridone, anthraquinone and perylene tetracarboxylic acid pigments. Specified polyolefins are polyethylene, polypropylene and mixtures. Preferred amides are stearyl and oleyl monoethanolamides and oleyl diethanolamide. The compositions may be formed by milling or kneading and examples describe compositions of polyethylene, oleyl monoethanolamide and (1) copper phthalocyanine, (2) chlorinated copper phthalocyanine, (3) carbon black, (4) titanium dioxide, (5) red pigment and (6) blue pigment. Compositions (1) and (2) are used to colour polypropylene which is spun into fibres.