baber/WOPTO huggingface dataset:
Patent GB-742388-A (GB)
Title: Improvements in or relating to television receivers
Inventor: CRAWFORD EDWARD CHARLES
IPC: H04N5/14
Filed: 1952-06-20
Abstract: 742,388. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 17, 1953 [June 20, 1952], No. 15536/52. Class 40 (3). In order to reduce the grain effect due to circuit noise in the reproduced television image in a high-gain, wide-band receiver, the connection between the video amplifier 1 and the cathode-ray tube includes a low-pass filter 6-8 serving to attenuate frequencies in the band 1-3 mc. Switches 9, a plug and socket, or soldered links permit the filter to be removed from the circuit. A peaking coil may be employed to offset the input capacity of the cathode-ray tube when the filter is removed. Suitable component values for the filter are quoted.
Patent GB-456207-A (GB)
Title: Improvements in or relating to refractory building materials
IPC: C04B35/44
Filed: 1936-06-03
Abstract: Refractory building-material contains up to 50 per cent of olivine, the remainder being chromite or chromite and magnesia (or magnesite). The olivine may contain 10 to 15 per cent of talc and serpentine; if it contains much magnesium hydrosilicate it may be heated before use, to convert the latter into orthosilicate. The chromite, which may be calcined before use, may be chrome iron ore containing spinel crystals such as FeCr2O4, MgCr2O4 and MgAl2O4.  The magnesia may be in the form of chemically prepared magnesium oxide, dead-burnt magnesite or brucite.  The mix may contain calcium aluminate cement, organic or inorganic binding agents, and mineralizers such as borax, fluor spar and cryolite.  All the chromite may be coarse and all or part of the magnesite and olivine fine.  The entire mix may be in grains smaller than 4 mm. half the olivine and half the magnesite being smaller than 0,2 mm.  Grains between 0,8 mm. and 0,3 mm. may be eliminated by sifting.  From 20 to 30 per cent of the material may be between 6 and 2 mm., 15-25 per cent between 2 and 0,6 mm., 10.-20 per cent between 0,6 and 0,2 and 30-40 per cent between 0,2 and 0,15 mm.
Patent GB-1191818-A (GB)
Title: Apparatus and Method for Calibrating Magnetic Compasses
IPC: G01C17/38
Filed: 1969-03-25
Abstract: 1,191,818. Magnetic compasses. SPERRY RAND CORP. March 25, 1969 [March 29, 1968], No.15608/69. Heading G1F. Apparatus for use in calibrating a magnetic compass 11 comprises a permanent magnet assembly 25 for generating a magnetic field equal and opposite to the horizontal component of the earth's magnetic field at a location for cancelling the effect of the horizontal component in the vicinity of the compass 11, and a further permanent magnet assembly 28 providing a standard magnetic field throughout 360 degrees in azimuth in the vicinity of the compass 11 indexing means being provided for positioning the field throughout 360 degrees whereby a compass calibration card is defined. The apparatus is carried on a base 12 with a bracket 13 for screwing to the compass 11 by means of screws 15, 16. The assembly 25 comprises a plate 29 which is pivotally mounted on the base 12 for movement through a small angle to compensate for any angular misalignment between magnetic north and the compass orientation, the misalignment being measured on a scale 37. The plate 29 carries two parallel bar magnets 20, 21, and each magnet has a cylindrical soft iron shield 22, 23 adjustable axially with respect to the magnets 20, 21 by means of a screw 24 to adjust the magnetic field strength of the magnets and thus the field strength cancelling the effect of the horizontal component of the earth's field in the vicinity of the compass 11. The assembly 28 comprises a pair of horizontal bar magnets 26, 27 disposed in cylindrical rotatable housings 30, 31 having graduations thereon to define their relative positions with respect to a lubber line 32. The magnet 26 is approximately three times the strength of the magnet 27 and by rotating the two magnets 26, 27 into predetermined relative positions or uniform strength field may be provided throughout 360 degrees in azimuth so that the reading given by the card 33 of the compass 11 may be checked and any error recorded and compensated by magnets 18, 19 in the compass. A procedure for carrying this into effect is given in the Specification.
Patent GB-283786-A (GB)
Title: Improvements in the manufacture and production of cleansing and emulsifying agents
IPC: C11D9/26
Filed: 1926-10-13
Abstract: 283,786. I. G. Farbenindustrie Akt.- Gres. Oct. 13, 1926. Addition to 260,243. Cleansing-compositions and emulsifying agents forming clear aqueous solutions useful e.g. in the textile and leather industries, comprise the oily oxygen-containing organic substances insoluble in water obtained by the hydrogenation of oxides of carbon or by the hydrolysis of the compounds formed by absorbing in sulphuric acid the unsaturated hydrocarbons obtained by cracking, mixed with soft soap, or grain soap, or alkali hydroxides and fatty acids or other soap-forming materails, or substances possessing soap-like properties, e.g. turkey-red oil or iso-propylnaphthalene-sulphonic acid or other alkylated aromatic sulphonic acid ot its salt, or with mixtures thereof. There may be added low boiling aliphatic alcohols, e.g. ethyl alcohol or pure or crude wood spirit or synthetic methanol, and aliphatic, aromatic, or hydroaromatic hydrocarbons, e.g. benzine, benzene and its homologue, naphthalene, and paraffin wax.
Patent GB-574322-A (GB)
Title: Improvements in or relating to warp stop motions for looms
IPC: D03D51/28
Filed: 1943-09-23
Abstract: 574,322. Looms. WALTERS, P. B. Sept. 23, 1943, No. 15616. [Class 142 (i)] A warp stop motion comprises a series of gravity operated droppers disposed near and parallel to a reed b ; each individual dropper e rests upon a warp thread a and when a thread breaks the dropper e falls into contact with the reed b to complete an electric circuit which incorporates a loom stop mechanism indicated at h and a circuit interrupting mechanism g to interrupt the circuit when the droppers e are not raised by the warp threads at the forward position of the reed b. The droppers e may be drilled and pivoted on a rod as shown or their upper ends may be shaped to hang over a suspension rod ; in other modifications the suspension rod may be placed behind the reed and a separate conducting strip employed, or the droppers may slide between the wires of the reed.
Patent GB-434620-A (GB)
Title: An improved costotome or surgical rib cutter
IPC: A61B17/16
Filed: 1934-05-25
Abstract: 434,620. Surgical-operating appliances. SCHRANZ, R., 28A, Devonshire Street, Portland Place, London. May 25, 1934, No. 15636. [Class 81 (ii)] In an appliance for cutting ribs in surgical operations comprising forceps 1, 1<1>, the beaks 6, 8, of which are closed around the rib, and a sliding blade 2, operated by a lever 16, the blade 2 is slidably connected to the part 1 by means comprising a rib engaging a slot. Preferably a rib 11 integral with and extending beyond the blade 2, engages a slot 9 in the part 1, and is covered, to hold the blade in position, by a blade-operating portion 14 integral with the lever 16. The part 14 has cam-surface 18 of ogee form bearing against the near edge and one corner of the blade, and a nose 19 engaging a stud 13 on the rib 11 ; the lever 16 is secured to a lug 15 on the member 1 by a milled-headed or other screwpin 17 removal of which permits ready dismantling of the blade and operating mechanism. The blade 2 has a cutting edge 3 and chamfered edges 4 engaged by guides 5, 7, on the beaks 6, 8,
Patent GB-449052-A (GB)
Title: Improvements in electric insulators
IPC: H01B17/02
Filed: 1935-05-30
Abstract: 449,052. Insulators. OHIO BRASS CO., Mansfield, Ohio, U.S.A. May 30, 1935, No. 15742. Convention date, June 2, 1934. [Class 36] An insulator, particularly for use under foggy or other adverse atmospheric conditions, comprises dielectric members 21, 28 cemented to the ends of a pin 23 and provided with flanges 25, 27, the flange 25 enclosing a space within which the dielectric member 28 is wholly or substantially wholly confined. A skirt 33 on the member 21 depends into an upwardly opening annular groove in the flange 27 of the member 28 and co-operates with a baffle 34 on the member 28 to provide a labyrinthine passage which prevents air currents from depositing moisture or other contamination on the surfaces of the dielectric members adjacent the pin. The pin may be formed in two sections which screw together. To prevent corona discharge between the pin and the adjacent surfaces of the dielectric members, conducting coatings 35 are provided on these surfaces, the coatings making good contact with the cement by which the dielectric members are secured to the pin and extending about onequarter of an inch beyond the cement.
Patent GB-966711-A (GB)
Title: Improvements in and relating to amplifier circuits
IPC: H01J43/30
Filed: 1961-05-02
Abstract: 966,711. Photomultiplier circuits. PHILCO CORPORATION. May 2, 1961 [May 2, 1960], No. 15837/61. Heading G1A. [Also in Divisions G4, H3 and H4] A photomultiplier tube is operated in such a manner as to give a proportionally smaller output for greater values of light intensity incident on the cathode. The dynodes and anode are fed from a potentiometer 28-31, 35-38 which passes a current which is much greater than the maximum dynode current, so that the potential at each tap is independent of dynode current, and the potential drop between the final dynode 18 and anode 20 is made less than that between preceding pairs of dynodes. The output is taken from the anode circuit by means of a transformer 44. A second, linear output may be taken by means of a transformer, from the circuit of one of the earlier dynodes (Fig. 3, not shown): this output circuit may be tuned to cover a frequency range which differs from that to which the anode output circuit is tuned. The arrangement is more particularly intended for use in colour television systems in which luminous indexing stripes are placed on the screen of the cathode ray picture tube for the purpose of generating indexing signals, to limit the signal generated therefrom.
Patent GB-386529-A (GB)
Title: Improvements in and relating to window constructions for vehicle bodies
IPC: E05F11/38
Filed: 1932-06-04
Abstract: 386,529. Vehicle windows. BRIGGS MANUFACTURING CO., 11631, Mack Avenue, Detroit, Michigan, U.S.A.- (Assignees of Ball, A. P. ; 3574, McKinley Avenue, Detroit, Michigan, U.S.A.) June 4, 1932, No. 15873. Convention date, July 13, 1931. [Class 20 (iii).] Relates to sliding vehicle windows of the kind in which the upright edges of the glass panel and guide channels therefor are inclined with respect to each other. According to the invention, one channel 17, Figs. 1 and 3, is formed relatively deep, and the glass panel 14 carries means, such as a rod 27, which engages in the channel 17 and operates to maintain the panel in constant engagement with the opposite guide channel 16. The depth of the channel 17 is such that the panel will not disengage therefrom when fully lowered. In the form shown, the rod 27 is formed with a downwardly extending end 28 engaging with the base of the channel 17, and is mounted within the lower frame member 22, Fig. 2, of the panel. The panel is urged towards the channel 16 by a coil spring 29 which encircles and engages with the rod 27. The member 22 carries a channel strip 24 which receives the glass, and a lateral lip 25 of this strip is adapted to engage with the sill 26 to provide a weathertight joint when the panel is raised. The panel is raised and lowered by arms 19 provided with rollers 20 which engage in slots 21 in the frame member 22. Specification 366,874 is referred to.
Patent GB-612486-A (GB)
Title: Improvements in shielded electric sockets
IPC: H01R13/453
Filed: 1946-05-25
Abstract: 612,486. Two-part couplings. CRABTREE & CO., Ltd., J. A., CRABTREE, J. A., and MORGAN, R. W. May 25, 1946, No. 15925. [Class 38 (i)] The contacts of a socket outlet are screened by a shutter or shutters which are unlocked on inserting the earth pin and moved open on inserting the " live " pins of a corresponding three-pin plug. Two Z-shaped shutters a2, of insulating material, having opposed inclined surfaces b<2> at one end and inclined surfaces d<2> at the other, are located in recesses r in the cover of the socket, and are normally biassed to a locked position (shown in slotted lines) by a spring n which is centrally looped over a peg n<1> and the ends of which engage holes m in the shutters. Impingement of an earth pin c<2> on the inclined surfaces b<2> tilts the shutters outwards about their lower corners o to a position (shown in full lines) where they are clear of a fixed locking member p ; and may then be raised to their open position (shown in chain dotted lines) by the action of the " live " pins on the lower inclined faces d<2>. In a modification, two helical springs are used instead of the single looped spring. In a further embodiment, Fig: 5, the earth pin impinges on the inclined face of a lug v, thereby tilting the one-piece shutter clear of the locking member y and allowing the shutter to be raised by the " live " pins acting on the inclined faces d3. The Provisional Specification also refers to shutters with slots which co-operate with the locking members when the shutters are unlocked.
Patent GB-145028-A (GB)
Title: Improvements in and relating to lamps for benzole and other easily vaporised fuels
IPC: F23D3/00
Filed: 1920-06-14
Abstract: 145,028. Eckel, P. Feb. 27, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Carburetted - a i r lamps. - The carburettor 1 of a carburetted-air lamp is packed with lumps 2 or chips of a porous stoney substance, such as infusorial earth mixed with a binding-material, and is provided with a drain cock 3 for removing surplus fuel. In some cases, the porous lumps are formed by burning a mixture of clay or other mineral substance with finely divided fuel.
Patent GB-1462093-A (GB)
Title: Paste dispenser
IPC: A47K5/12
Filed: 1974-04-11
Abstract: 1462093 Axial-flow pumps; screw actuated piston dispensers E SERRA 11 April 1974 [12 April 1973 4 April 1974] 16064/74 Headings F1C and F1R A dispenser for pasty material, such as hand washing paste, comprises a container for the paste 1, Fig. 1, an impeller 4 at the bottom of the container for forcing the paste through an opening 5 and a piston 6 urged downwardly by screw action to feed the paste towards the impeller. Rotation of the impeller and a threaded shaft 7 connected thereto for screwing the piston downwardly, is effected by a handle 12 via a spring ratchet system 13. The underside of the piston may be roughened to enhance adhesion with the paste and thereby prevent rotation of the piston. The screwed connection of the piston with the shaft 7 is achieved via a knurled nut 8 which can be unscrewed from the piston and then tilted as shown in broken lines for quick removal from the shaft, thus enabling easy removal of the piston prior to refilling the container. The shaft 7 may be made detachably securable at either of its ends to the piston to facilitate refilling of the container. The main body 15 of the container may be a replaceable cardboard refill cartridge engaged on spiked stops 18, 19 in a lower end cover 3 and having a ring 21 at its upper end covered by a member 22 attached thereto by a projection 23 and a lock 24. The opening 5 may be closed by an impeller blade when the impeller is stationary.
Patent GB-579163-A (GB)
Title: Improvements relating to the prevention of corrosion of magnesium and magnesium base alloy surfaces
IPC: C23C22/83
Filed: 1942-11-14
Abstract: 579,163. Coating metals. ESSEX AERO, Ltd., CROSS, R. J., and MAILLARD, E. F, Nov. 14, 1942, No. 16135. [Class 82 (ii)] To prevent corrosion of articles of magnesium. or magnesium rich alloys, the articles are first treated with an acid solution of potassium dichromate and the film so formed is reduced in the presence of an alkali or ammonium fluoride with or without an alkali or ammonium phosphate. The chromate film treatment may be carried at temperatures in excess of 100‹ C., under pressures up to 100 lbs. per sq. in. In an example, the articles are heated in a closed vessel with a large excess of a solution containing 15 gms. ammonium sulphate, 7¢ of potassium dichromate and 7¢ of ammonium .dichromate per litre and having a pH value of 7.5 for one hour under a pressure of 100 lbs. per sq. in. and at a temperature of 110‹ C., the film so produced being reduced in an aqueous solution containing 5 per cent potassium fluoride and 5 of potassium phosphate heated to 130‹ C. in a closed vessel at atmosphere pressure. The reducing solution may contain 3 per cent of potassium dihydrogen phosphate saturated with sodium fluoride and the chromate liquor may be raised'to 1150‹ C. to have an initial pH value of 6.5.
Patent GB-663538-A (GB)
Title: Improvements in or relating to continuous saponification processes
IPC: C11D13/04
Filed: 1948-06-16
Abstract: In the continuous method of manufacturing soap wherein a stream of fatty material is heated with a caustic lye at a temperature of about 100 DEG C. to effect saponification and is free from any graining agent in such proportion as would cause graining with the saponification, the saponification of the fat is brought about gradually by passing the stream through a series of columns and adding to the stream at each column a predetermined quantity of lye such that the fats become progressively more saponified until in the end column the saponification is substantially complete.  The saponification columns may be followed by similar columns either for graining with brine and fitting with water or alternatively for incorporating with usual soap additives such as rosin soap, builders, soda ash, water glass and additional water.  Undue thickening of the saponification mixtures may be prevented by the addition of a thinning agent, such as brine or water, prior to or during the process.  The saponification may be accelerated by the addition of saponification catalysts, such as   or b -naphthol.  The fatty material flows through the columns in the usual zig-zag manner, being fed to the columns near the bottom, and the lye portions are each fed to the columns near the top parts thereof.  Samples from various stages of the process may be tested with phenolphthalein, and any free caustic lye detected is corrected by the addition to the succeeding column of a proportion of sodium bicarbonate or ammonium chloride solution.
Patent GB-861230-A (GB)
Title: Improvements in aeroplanes
Inventor: WALLIS BARNES NEVILLE
IPC: B64C3/40
Filed: 1955-06-06
Abstract: 861,230. Aircraft. VICKERS AIRCRAFT HOLDINGS Ltd. May 18, 1956 [June 6, 1955], No. 16251/55. Class 4. The wings 11, 12 of an aircraft are pivotally connected to the body 10 and the inboard end of the spar of each wing is bifurcated to form limbs 141, 151. lying substantially in the plane of sweep. The aircraft is similar to that described in Specification 832,760 and the wings are carried by bearings 16, described in Specification 860,823. The spar comprises two I- section beams, side-by-side in the wing, having their inboard ends, the limbs 141, 151, connected by a chordal member 17 furnished with a toothed segment meshing with a motordriven worm.
Patent GB-166114-A (GB)
Title: Improvements in closures for milk bottles and the like
IPC: B65D39/02
Filed: 1921-06-13
Abstract: 166,114. Plympton, F. K., (Assignee of Mark, H.). July 7, 1920, [Convention date]. Disc closures. - A bottle or jar closure comprises a thin disc 1 and an extractor 2, the handle portion 5 of which lies on the upper surface of the disc, its fastening portions 3, 3<1> passing through the disc and extending along its undersurface to clasp the edge thereof. Preferably the loop 5 points towards the centre of the disc and the ends of the wire are embedded in the edge of it.
Patent GB-313306-A (GB)
Title: Improvements in self-closing valves
IPC: F16K17/32
Filed: 1928-06-05
Abstract: 313,306. Williamson, H. P. June 5, 1928. Valves controlled by pilot or relay valves. - An automatically - closing sluice valve is actuated by a doubleacting piston under the control of an auxiliary valve device actuated by the variation of the pressure-ratio existing between the centre of the main stream and the outer area thereof. The control-conduits 1, 2 which are connected to concentric pipes secured to the main, the one extending to the centre and the other finishing substantially flush with the inner surface of the main, are coupled to control chambers 6, 7. The chamber 6 is further connected to the underside of the main piston P by a pipe 18 and to exhaust by a pipe 17, and contains a dual closure valve 8, 10. The chamber 7 is connected to the upper side of the main piston by a conduit 21 and to exhaust by a. pipe 20, and contains a triple closure valve 9, 11, 19. The valves in the two chambers are connected by adjustable spindles 12, 13 to a lever 14 adjustably weighted at 16 so that under normal conditions pressure is admitted beneath the main piston to hold the main valve open. In the event of an abnormal flow, the pressure in the conduit 1 falls to a greater extent than that in 2 and the valves are thrown over to reverse the connections to the main cylinder and so close the valve. The movement of the lever 14 releases a tumbler weight 24 which acts to counteract the effect of the weight 16 and hold the control in the closing position. In a modification, a similar form of control is used to actuate a catch to release a tumbler weight adapted to actuate a four-way cock controlling the action of the main cylinder.
Patent GB-405173-A (GB)
Title: Manufacture of substituted malonic acids
IPC: C07C51/27
Filed: 1933-06-08
Abstract: Substituted malonic acids are obtained by oxidizing corresponding compounds having alcohol or aldehyde groups in place of one or both the carboxylic groups of the acid by means of nitric acid or oxides of nitrogen.  The oxidation may be effected in presence of sulphuric acid or a vanadium or molybdenum compound, and the nitrogen oxides may be regenerated in the reaction vessel by introducing oxygen.  In the examples: (1) 2-methyl-2-ethyl-propanol-1-one-3 is added gradually at 30--40 DEG  C. to nitric acid containing nitrogen oxides, and oxygen is introduced; (2) 2-2-diethyl-propanol-1-one-3 is added to nitric acid of the same composition but at 15--20 DEG  C.; (3) 2 - 2 - diethyl propanol - 1 - one - 3 is added gradually at 40 DEG  C. to a mixture of nitric and sulphuric acids containing ammonium vanadate and traces of nitrogen oxides, and oxygen is introduced.  In a similar manner substituted malonic acids may be obtained from 2-ethyl-2-butyl - propanol - 1 - one - 3, 2 - methyl - 2 - ethyl - propane - diol - (1 : 3), and 2 - 2 - diethyl-propanol-1-carboxylic acid-(3).
Patent GB-554343-A (GB)
Title: Improvements relating to lathe centres and the like
IPC: B23B23/04
Filed: 1941-12-22
Abstract: 554,343. Lathe centres. WESTON & CO., Ltd., C., and EDNEY, G. H. Dec. 22, 1941, No. 16487. [Class 83 (iii)] A live centre 21 for a lathe is fitted directly in the casing 12 which has an inturned flange 14 serving to support a thrust bearing 15 located between the flange and a collar 16 on the stem 11. The casing is supported on the stem by a ball bearing 13 and an oil seal, which may be made as described in Specification 411,315, [Group XXVI], is located behind the collar 16.