baber/WOPTO huggingface dataset:
Patent GB-288044-A (GB)
Title: Improvements in direction indicating devices for use on motor vehicles
IPC: B60Q1/34
Filed: 1927-05-06
Abstract: 288,044. Harris, A. May 6, 1927. Road-traffic signals on vehicles.-A pivoted signalling-arm for use on motor vehicles comprises two hollow parts a, b which, when secured together by screws c, clamp in position a coloured celluloid box g having flexible flanges m and open at one end so as to be easily removed when it is desired to change the lamp e. The lamp e is lighted when the arm is horizontal by a switch device comprising a bent strip n which is secured to, and insulated from, the signal arm, and contacts with a stationary screw r. The parts a, b are perforated to display an arrow or hand. Specifications 278,403 and 280,975 are referred to.
Patent GB-1064424-A (GB)
Title: Improvements relating to the ignition of jet propulsion engines
Inventor: BAUGER LOUIS JULES
IPC: F02C7/266
Filed: 1964-03-23
Abstract: 1,064,424. Gas turbine engines. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. March 23, 1964 [March 28, 1963], No. 12144/64. Heading F1G. Ignition in the combustion chamber of a gas turbine jet propulsion engine is effected by modulating the pressure of the starting fuel injected into the combustion chamber whilst an ignition device is continuously operated, the pressure modulation causing the pressure to fluctuate between two limits at a predetermined frequency, the two limits defining a range which includes all the values of the starting fuel injection pressure which permit ignition in the engine under the various working conditions of the latter. As shown, starting fuel is supplied to a pressure modulator 1 through inlet 3 at a pressure higher than all the values of pressure permitting ignition. An electromagnetically operated valve 4 is opened by a modulation device 9 and closed under the action of spring 5 at the predetermined frequency and starting fuel at modulated pressure is supplied to an injector (not shown) through outlet 2. The open and closed periods of the valve may be 0À6 and 0À4 seconds respectively. The valve 4 may be pneumatically or hydraulically operated.
Patent GB-748351-A (GB)
Title: Improvements in or relating to stabilisers for polyvinyl chloride and like chlorine-containing polymers
Inventor: SULLY BERNARD THOMAS DUDLEY
IPC: C08K5/11
Filed: 1953-05-01
Abstract: Chlorine-containing polymers, e.g. polyvinyl chloride, are stabilized by incorporating in the polymer a plasticizer and a salt of a half ester of maleic acid and a metal the chloride of which does not catalytically decompose polyvinyl chloride such as lithium, calcium, barium, strontium, lead, zinc, cadmium, and magnesium.  The mixture of the plasticizer, e.g. dioctyl phthalate, and the half-ester salt which is incorporated in the polymer, may be made by suspending the oxide of the metal, e.g. litharge or lime, in the plasticizer and adding a maleic acid half-ester to the suspension.  Half-esters mentioned are mono-octyl and mono-nonyl maleates.ALSO:Metal salts of half-esters of maleic acid are made by suspending an oxide of a metal in a known polymer plasticizer, e.g. dioctyl phthalate, and adding a maleic acid half-ester to the suspension at such a rate that the temperature does not rise above 100 DEG  C.  Half-esters mentioned are mono-octyl and mono-nonyl maleates.  The salt metal may be lithium, calcium, barium, strontium, lead, zinc, cadmium, or magnesium.  In an example the lead salt of mono-octyl maleate is made by suspending litharge in dioctyl phthalate and adding mono-octyl maleate.  The mixture of the plasticizer and the salt of the half-ester are used for plasticizing and stabilizing chlorine-containing polymers.
Patent GB-620405-A (GB)
Title: Improvements in or relating to compact electric condensers
IPC: H01G4/08
Filed: 1946-04-23
Abstract: 620,405. Condensers. FEKETE, A. F. April 23, 1946, No. 12180. [Class 37] [Also in Group XL (a)] Layers of inorganic dielectric material and metal are deposited alternately on a supporting base element of the required shape by means of evaporation or cathodic sputtering within a high vacuum chamber, these layers being superposed. The successive periods of deposition are carried out within the same period of evacuation of the chamber. The dielectric and metallic deposits may be of a composite nature, the latter having protective or corrosion resistant properties. A high vacuum chamber 27 contains an assembly of bracket arms 39, rotated by motor 23 and gears 25, carrying supporting base elements 30. Cathodic sputtering electrode 29 and evaporation filament 29a are enclosed within the chamber.
Patent GB-352572-A (GB)
Title: Device for sharpening and stropping safety razor blades and similar cutlery
IPC: B24D15/08
Filed: 1930-04-17
Abstract: 352,572. Stropping-apparatus. VOORWINDE, W., 93B, Pretorialaan, Rotterdam, Holland. April 17, 1930, No. 12189. [Class 60.] A device for sharpening safety razor blades &c. consists of rollers carried at the ends of pliers-like members, and means for rotating the rollers and for locating a blade therebetween. The pliers-like members 3, 4 carry at their outer ends rubber &c. covered rollers 5, 6 respectively, the roller 5 being rotated by a handle 8 screwing on the spindle 7 of the roller, and, when rotated in the correct direction, engaging a pin 9 to drive the roller, but when reversely rotated, not engaging the pin. The blade rests on the roller and is guided by fingers 13, the roller 6 being pressed down to engage the roller 5 whereby it is driven, and in order to remove the blade, a lever 11 is provided, pivoted in a support 10 and magnetized at its outer end to hold the blade when lifted, by movement of the lever, from the fingers 13. Abrasive or stropping powder is contained in a tube 15 is applied, through holes 16, therein to the rollers. Two sets of rollers may be used to operate simultaneously on both edges of a blade ; the magnet is then carried by the member 4. In a modification, the blade-holder has lugs 22, Fig. 3, and bent fingers 13, the blade being removed by tilting it about the lugs as pivots. Clips may be placed in the members 3, 4 to hold a razor frame and a stick of stropping-composition.
Patent GB-1097716-A (GB)
Title: Method of making optical filaments and optical filament devices
IPC: C03C25/105
Filed: 1965-03-23
Abstract: Light conducting optical filaments and filament systems are formed by depositing on a core of a single transparent glass filament, solid particles of a glass of lower refractive index than the glass of the filament and fusing the particles to form a sheath.  A drawn filament is passed through a bath containing a suspension of the glass particles in a liquid such as ethyl lactate, oils such as a mixture of turpene oils, turpentine and wax, or the particles may be deposited by spraying or dipping. The liquid phase is dried off and the coated filament cut to lengths and placed closely packed in a mould having a cross-section desired such as round, hexagonal or square.  The mould is then placed in a furnace, the temperature of which is high enough to melt the particles to form a sheath without melting the filaments.  The fused bundle may then be drawn out to form a multiple optical filament.  The glass used for the filament may be in weight percentages: SiO2 35; B2O3 15; BeO 42; Al2O3 1.5; Na2O 3; ZrO2 3.5; and that of the coating particles: SiO2 70; K2O 6; Na2O 9; B2O3 9; BaO 1; CaO 2.75; Al2O3 2.25.
Patent GB-711491-A (GB)
Title: An anti-fraud device for use in conjunction with printing mechanism associated with weighing apparatus
Inventor: CLARK DONALD
IPC: G01G23/18
Filed: 1951-05-25
Abstract: 711,491. Weighing-apparatus. ASHWORTH, ROSS & CO., Ltd. Aug. 5, 1952 [May 25, 1951], No. 12245/51. Drawings to Specification. Class 143 The subject-matter of this Specification is substantially the same as that described in Specification 711,490 but the claims relate to the anti-fraud mechanism.
Patent GB-455858-A (GB)
Title: Improvements in and relating to the transmission of impulses of different kinds over a common channel, for example in television and like systems
IPC: H04N5/067
Filed: 1935-04-24
Abstract: 455,858. Television. BLUMLEIN, A. D., 32, Audley Road, Ealing, London. April 24, 1935, No. 12370. [Class 40 (iii)] Spaced electric impulses of different kinds are transmitted from either of two separate sources 6, 7 to a common output circuit 16 by a selective switch 9, 12, which is automatically prevented from changing over except during the spacing periods between the impulses from one 7 of the sources. Line-synchronizing impulses from a multivibrator 6, are applied to the fourth grid of a heptode 9, and longer impulses at twice the line frequency are applied from a multivibrator 7 to a heptode 12. Longer switching impulses at the frame frequency from a multivibrator 8 are applied to the first grids of the heptodes to prevent the normally operative heptode 9 feeding the line impulses, while the heptode 12 feeds a train of broader framing impulses, as described in Specification 448,097. The multivibrator 8 is controlled through a heptode 19, to the first grid of which impulses at the framing frequency are supplied from a frequency divider 5. The broader impulses at twice the line frequency are also supplied to the fourth grid of this valve. This ensures the framing-frequency impulses are not applied to trigger the multivibrator 8 except in an interval of the impulses from 7, and prevents mutilation of the framing signal. Specification 425,220 also is referred to.
Patent GB-128662-A (GB)
Title: Improvements in Photographic Cameras.
IPC: G03B17/42
Filed: 1917-08-29
Abstract: 128,662. Thornton-Pickard Manufact uring Co., Pickard, A. G., and Slinger, F. Aug. 29, 1917. Magazine hand cameras with connected action between shutter and changing - mechanism; changeboxes, self-contained.-In a magazine plate-holder and plate-changing apparatus having magazines for the unexposed plates and for the exposed plates, and a sliding frame by which the plates are transferred from one magazine to the other, as described in Specification 11651/15, a clock-work, spring, or other motor is provided so that, on release of the shutter, or on starting the motor, exposure is effected, the plate is transferred, and the shutter is reset. As shown in Fig. 1, a spring motor B is connected through a train of wheels with a wheel b which is linked to and rocks a quadrant D engaging a compound pinion a', a<2> in gear with a rack on the sliding frame A. The motor is normally rendered inoperative by a pawl E which engages a notch in a disk on the wheel b, the paw! being released by a trip-bar H operated by the tail of a lever G, which is itself moved by a hand-operated slide bar G<1>, a Bowden wire, bulb, or other release. A toothed sector F, mounted on the same pivot as the quadrant D and connected to the quadrant by a clutch which permits its independent movement under the tension of a spring f<2>, is normally held by the engagement of a pin g thereon and a notch in the lever G. The shutter is normally set and locked by the engagement of the sector F with a pinion f<3> in a train of wheels geared to the winding-pinion C of the shutter. The operation of the release causes the pin g to become disengaged from the notch, the sector F to be moved by the spring f<2>, thus releasing the shutter, and the pawl E to be lifted frcm its notch. The motor then operates through the wheel b, link d, quadrant D, pinion a', a<2>, and rack to traverse the sliding frame A so that the exposed plate is removed from the magazine A<1> to the magazine A<2>. After a half-revolution of the wheel b, the direction of movement of the quadrant D, and consequently of the frame A, is reversed, the sector F then moving with the quadrant so as to come into engagement with the pinion f<3> and reset and finally lock the shutter. Or, the completion of one revolution of the wheel b, the pawl E again engages the notch and stops the motor. When it is desired to make two or more exposures in succession, the release may be connected to the pawl E, and the pawl may be held out of engagement with the notch for the necessary time, or an escapement similar to that of the striking-action of a clock may be employed. In either of these alternatives, the pawl E may be connected directly to the lever G, or the lever may be operated by the return movement of the quadrant D, the release then starting the motor as a first operation. The motor may be arranged outside or around the case of the mechanism, instead of inside as shown.
Patent GB-118161-A (GB)
Title: Improvements in and relating to Surface Electrical Conduits and Fittings therefor.
Inventor: WHITE ALFRED ERNEST
IPC: H02G3/06
Filed: 1917-08-29
Abstract: 118,161. White, A. E., (American Conduit Manufacturing Co.). Aug. 29, 1917. Conduits and casings.-A conduit for electric conductors comprises a base portion 1 and a cover portion 2 of trough shape with inwardly facing grooves 5 adapted to be sprung over the edges of the base portion. The base portion is secured to the wall or ceiling by screws or nails passed through holes 7. At elbows or bends, the base fitting is enlarged as shown in Fig. 2 and formed with end portions 3 adapted to overlap the ends of the base portions 1 of the straight conduit. The ends of the cover portion for the elbow have end parts 4 shaped similarly to, but larger than, the covers 2 so as to fit over the same and hold the elbow cover in position. Similar constructions are adapted for T-joints and corner fittings. Reference has been directed by the Comptroller to Specification 17999/09.
Patent GB-633621-A (GB)
Title: Improvements in or relating to resinous compositions
IPC: D21H17/48
Filed: 1947-05-08
Abstract: Laminated members are produced by applying to a plurality of fibrous sheets a binder prepared by refluxing, with subsequent removal of water, 1 mol. of a phenol, 0.1 to 1 mol. of a primary monoarylamine and 0.02 to 0.6 mol. of a secondary diaryl monoamine, and formaldehyde or a polymer thereof in presence of an alkaline catalyst, the proportion of aldehyde being 0.8 to 1.5 mols. for each mol. of the combined phenol and di-arylamine and 0.8 to 2.5 mols. per mol. of monoarylamine.  The resin is then cured to the thermoset state.  Suitable phenols are phenol, cresol, xylenol, and cresylic acid.  Monoarylamines are aniline, toluidene, xylidine, and suitable diarylamines are diphenylamine, dinaphthylamine, and ditolylamine. Anhydroformaldehydeaniline may be used to provide both aniline and formaldehyde.  Suitable alkaline catalysts are hydrated lime, magnesia, barium oxide, aliphatic amines, e.g. ethylenediamine, ammonia and hexamethylenetetramine.  Solvents may be present during the reaction, e.g. ethanol, toluene, isopropyl alcohol, benzene or mixtures thereof.  A number of specific examples are given of the preparation of the resins.  The powdered resins or their solutions may be mixed with dyes, pigments, e.g. alumina, bentonite, mica, graphite or molybdenum disulphide, opacifiers or mould lubricants, e.g. calcium stearate or wax.  Suitable fibrous materials to be laminated are cotton, silk, asbestos, cellulose acetate, glass fibre, or woven, knitted, felted or braided materials.  The products are particularly suitable for punching with clean fracture surfaces. They may be shaped to some extent after moulding by relatively low pressures.  They have good electrical insulation properties.
Patent GB-1132382-A (GB)
Title: Chimney cap, adjustable, self aligning, remotely and instantly fitted and weight located
IPC: F23J11/00
Filed: 1966-03-22
Abstract: 1,132,382. Chimney caps. H. M. THOMPSON. 9 Sept., 1966 [22 March, 1966], No. 12492/66. Heading F4J. A cap for an unused chimney is held in place by a weight 5 hanging within the chimney pot. A loop 4 on top of the cap enables it to be placed in position from the ground with the aid of a pole, and a wire spreader 6 distributes the load of the weight 5 over the surface of the ventilated cap 1. Locating lugs 2 are riveted to the underside of the cap.
Patent GB-829683-A (GB)
Title: Electric terminal assemblies
IPC: H01R9/26
Filed: 1956-04-24
Abstract: 829,683. Terminal boards. BUSCH-JAEGER DURENER METALLWERKE A.G. April 24, 1956 [April 28, 1955], No. 12548/56. Class 38 (1). Strip terminals 12...29 are held captive between insulating supporting members 1 ... 9 which are held together on a base-plate 10 by end angle brackets 11. The co-operating faces of the supporting members have grooves which together form slots for the terminals, said slots being arranged either in staggered relation as in the case of terminals 20 ... 23 or arranged in rows as in the case of terminals 24 ... 29. Partitions 30 may be provided on the supporting members, and may be slotted for an identification plate. The terminals are retained in the slots by lugs 34, 35, Fig. 6, formed in the grooves and which engage recesses 36, 37, Fig. 7, in the terminals 38.
Patent GB-756782-A (GB)
Title: Corrected toothing, particularly for slowly rotating gear wheels of timepieces and meters
IPC: G04B13/02
Filed: 1954-04-30
Abstract: 756,782. Toothed gearing. FABRIQUE D'EBAUCHES ETA SOC. ANON. April 30, 1954 [May 4, 1953], No. 12677 / 54. Class 80(1) In toothed gearing, particularly for the slow moving gears of timepieces and meters. the theoretical involute or other form of at least one of two intermeshing gears is modified so that the force transmitted to the driven wheel reduced to the pitch circle increases steadily from the beginning to the end of the contact of a pair of engaging teeth. A pair of modified gears 1, 2 is shown in Fig. 5 in which a4 represents the line of tooth contact as. compared to the line 7 for the theoretical involute form. The corresponding line a4 in Fig. 4 represents the motive force reduced to the pitch circle and taken over one tooth division whilst the line b4 represents the transmitted force reduced to the pitch circle after the frictional losses have been taken into account and, as shown, rises steadily along the line of contact.
Patent GB-713814-A (GB)
Title: Improvements in liquid filters, especially fuel filters
IPC: B01D25/00
Filed: 1952-05-20
Abstract: 713,814. Fitters. BOSCH GES., R. May 20, 1952 [May 26, 1951], No. 12686/52. Class 46 A liquid filter comprises a casing 1 having a cover 2 and enclosing a preliminary filter insert 7 comprising a textile fabric sleeve 8 supported, e.g., by an apertured metal jacket 9 having a bulbous end closure 11 so as to be maintained entirely out of contact with a filter insert 6 comprising a plurality of filter paper discs 6a and separated by paper discs 6b stacked about an axially bored pin 15 carried by and extending along the casing axis so as to leave an annular chamber 15a from which filtered liquid passes through a cross-bore 17 to the axial bore 18 and to an outlet 5 of the casing 1. During the assembly of the filter the insert 6 is positioned on an upwardly biased gate valve 19 covering the bore 17, a nut 24 is screwed over a threaded portion 21 of the pin 15 so as loosely to surround a reduced portion 22 thereof, the insert 7 is then located by a coaxial end 12a abutting a packing ring 14 carried by an end closure 13 and the cover 2 is clamped by screwing an internally threaded nut 23 on to the pin portion 21 whereon a packing ring 25 carried by the bulbous end 11 bears against the free nut 24 and the valve 19 uncovers the cross-bore 17. The textile sleeve 8 is held away from its support jacket 9 by beading 16 and the casing 1 has an overflow 4. The preliminary textile fabric filter serves to remove water from fuel oil.
Patent GB-886250-A (GB)
Title: Improvements in bipartite casings
IPC: H01R24/10
Filed: 1958-04-22
Abstract: 886,250. Two-part couplings; carrying cables through partitions. AMP Inc. April 22, 1958 [April 22, 1957], No. 12729/58. Classes 36 and 38 (1). [Also in Group XXV] A two-part casing, e.g. for enclosing connectors of the kind described in Specification 886,251, comprises a rectangular first part 4, for example of nylon, having forwardly extending resilient arms 6 with enlarged heads 8 having tapered surfaces and shoulders 10 whereby on insertion of the part through a hole in a panel 32, Fig. 4, said heads hook over the edge of the hole. A second part 2 of the casing is then pushed over the first part between said part and the arms to lock the arms in engagement with the panel, the two parts being held together by detents 24, 26. Lateral wings 14 on the part 2 limit the forward movement of this part through the hole. Fig. 7 shows a two-part casing 2a, 4a of circular, but otherwise similar form which accommodates a single conductor.
Patent GB-580363-A (GB)
Title: Improvements in luminescent materials
IPC: C09K11/73
Filed: 1943-08-06
Abstract: 580,363. Luminescent materials. GENERAL ELECTRIC CO., Ltd., McKEAG, A. H., and RANBY, P. W. Aug. 6, 1943, No. 12766. [Class 39 (i)] A luminescent material of the matrix activator type comprises a halo-phosphate in which the bivalent metals are mainly alkaline earth metals and at least part of the activator is tin or lead or both. The material may be prepared by heating calcium phosphate, calcium chloride, lead phosphate and small proportions of manganese phosphate and ammonium fluoride at 1100‹ C. for one half hour. Proportions are given. The Lead phosphate may be replaced by stannous phosphate and the calcium salts may be replaced by strontium. Specification 578,192 is referred to.
Patent GB-1300872-A (GB)
Title: Improvements in process for separating polyphenylene oxides
Inventor: BECKER HANS-DIETER
IPC: C07C46/10
Filed: 1971-05-03
Abstract: 1300872 Halogenated biphenols GENERAL ELECTRIC CO 3 May 1971 [9 July 1970] 12819/71 Heading C2C [Also in Division C3] In a process for separating a polyphenylene oxide from the reaction product containing a tetra-organo-substituted diphenoquinone obtained by the oxidative-polymerization of a diorganophenol of formula in the presence of an amine-basic cupric salt complex, the reaction product is treated with a hydrogen halide, HX, to convert the diphenoquinone to a monohalobiphenol of formula the biphenol is then converted to the alkali metal salt and then the polyphenylene oxide is separated from the said salt, R being a C 1-6  hydrocarbon and X being Cl, Br or F. In the example, poly - (2,6 - dimethyl - 1,4 - phenylene) oxide containing 3,3<SP>1</SP>,5,5<SP>1</SP>-tetramethyldiphenoquinone is prepared by passing oxygen through a toluene solution of 2,6-dimethylphenol containing as the catalyst system CuBr 2 , dibutylamine and methanol. The product is diluted with toluene and about 5% methanol is added. HCl gas is then bubbled therethrough. The upper phase layer formed is separated from the lower layer containing the catalyst, and is treated with aqueous NaOH to form the disodium salt of the 3-chloro-2,2<SP>1</SP>,6,6<SP>1</SP>-tetramethyl p, p<SP>1</SP>- biphenol. The lower aqueous phase layer of the sodium salt formed is then separated from the upper toluene phase containing the pure polyphenylene oxide. The sodium salt of the chlorobiphenol thus obtained can then be acidified, e.g. with HCl, to yield the 3-chloro-2,2<SP>1</SP>,6,6<SP>1</SP>-tetramethyl-p,p<SP>1</SP>-biphenol.
Patent GB-296290-A (GB)
Title: Improved tubular pit prop or strut
Inventor: CUTHBERTSON ROBERT W.
IPC: E21D15/54
Filed: 1928-02-08
Abstract: 296,290. Cuthbertson, R. W. Feb. 8, 1928. Divided on 293,520. Mine props.- Relates to pit - props such as are described in Specification 140,952, formed of openended metal tubing having a longitudinal slot. According to the invention, the slot extends not more than half way up the tube from the bottom or near the bottom. Fig. 1 shows a prop E in which a slot E<1> extending nearly half way up the tube from the bottom is graduated to show the depth to which the prop when in use. has sunk in the ground. To reduce the diameter of the bottom opening in the tube, an apertured shoe F, shown separately in Fig. 3, may be fitted. A cap similar to the part F may also be fitted on the top end of the prop if it is desired to increase the external diameter when the tube engages between the flanges of a channel girder. When the tubular prop is to be used to support a T-girder, the upper end of the tube is slotted to receive the flange of the girder.