baber/WOPTO huggingface dataset:
Patent GB-395755-A (GB)
Title: Improvements in or relating to multiplex modulated carrier wave telegraph systems
IPC: H04L5/06
Filed: 1932-01-22
Abstract: 395,755. Multiplex wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, WITTS, A. T., Anido, Phyllis Avenue, New Malden, Surrey. Jan. 22, 1932, No. 2082. [Class 40 (v).] The carrier frequency from' a masteroscillator MO is fed to a common circuit where a number of different modulating frequencies p1, p2, &c. are superposed by valves 5, and the resulting upper and lower side-bands separated out by filter-circuits 10, 11. Each telegraphic message is transmitted by keying the side-band frequencies, " marking " signals being sent on, say, the upper side-band and " spacing " signals on the lower. Or one side-band and the carrier wave are employed alternatively for spacing and marking. Two messages may be sent on each channel simultaneously, one on the upper and the other on the lower side-band, the carrier alone being transmitted when " marking " coincides in both channels. In the same way, three messages can be sent simultaneously, using only one modulating valve. Alternatively twomodulating frequencies are applied to the same valve, and the four side-bands separated out; one complete message is-then sent on the sidebands above the carrier wave by " marking " on one and " spacing " on the other, whilst a second message is similarly transmitted on the lower pair of side-bands. Specification 181,095. [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-448998-A (GB)
Title: Improvements in or relating to safety devices for gas burners
Filed: 1936-01-23
Abstract: 448,998. Gas cocks. LEVI, R., 42, Bismarckallee, Grunewald, Berlin. Jan. 23, 1936, No. 2179. [Class 135] A gas cock adapted to close automatically if the flame at the burner is extinguished comprises a plug d which is rotated by a disc e to open, a pin f on this disc engaging a spring- pressed closing lever c rotatably mounted on the cock and tending to turn the plug to the closed position. The plug d is retained in the open position by a locking-lever h which engages with either of two projections g<1> and g<2> on the lever c for full '' on " or a " small " flame respectively. Ratchet teeth n, on a rod m pivoted to one end of a substantially ring-shaped bimetal strip o around the burner, move freely over the nose h<1> of the locking lever h on expansion of the strip o, but on contraction of this strip, on the flame being extinguished, engage with the nose h<1> and thereby release the closing lever c, which closes the cock under the pressure of the spring b. In a modification, the device is applied to a Bunscn type burner.
Patent GB-524157-A (GB)
Title: Improvements in or relating to self-locking nuts
IPC: F16B39/38
Filed: 1939-01-23
Abstract: 524,157. Self-locking nuts. ELASTIC STOP NUT CORPORATION. Jan. 23, 1939, No., 2289. Convention date, Sept. 10, 1938. [Class 89 (i)] A two-part nut is threaded in both of its parts 10, 32 sc that the threads are in a slightly out-ofphase relationship The part 32 is made resilient and for this purpose has a weakened or diaphragm portion 36. In making the nut the two blanks are assembled and a projecting wall 24 in the blank of the part 10 is turned over as shown to fix the other part in position. The nut is then threaded and subsequently the part 32 is dished slightly by a tool 50 thereby causing the threads to be out of phase.
Patent GB-250350-A (GB)
Title: An improved apparatus for delivering measured quantities of liquids
IPC: B67D7/60
Filed: 1925-01-27
Abstract: 250,350. Avery, Ltd., W. & T., and Taylor, J. W. Jan. 27, 1925. Crank - actuated pumps; speed-varying devices; double-acting piston pumps; two barrels in series; measuring-devices.- Apparatus for delivering measured quantities of liquid comprises a double-acting pump G provided at each end with suction and delivery valves 10, 11, and supplied with a head of liquid through a pipe 8 drawing from a reservoir 7 fed by a pump 4 through a pipe 6. The pump 4 may be of larger capacity than the pump 10, the excess liquid delivered to the reservoir 7 returning by the overflow pipe 23 to the tank from which the pump 4 draws. The pistons 14 and 4a of the measuring pump and feed pump are mounted on a common rod 15 which is reciprocated by a crank handle through gearing 20, 19, a crank 17, and connecting rod 16. The amount of liquid delivered is determined by means of the setting on the screw shaft 21 of a traversable member in the manner described in Specification 250,349. Leakage is returned to the pipe 23 from the delivery pipe 29 by a valve 24 and pipe 25.
Patent GB-894635-A (GB)
Title: Improved apparatus for producing intermittent electrical pulses
IPC: H02M3/155
Filed: 1959-01-22
Abstract: 894,635. Automatic voltage control systems. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Jan. 22, 1959 [Feb. 20, 1958], No. 2391/59. Class 38 (4). [Also-in Group XL (c)] Apparatus for supplying electric pulses from a source of power intermittently to a load comprises a transistor oscillator having an ironcored transformer and in which a reference diode is connected between the load and the base of the transistor so as to limit the voltage applied to the load. The Figure shows a circuit for supplying power from a source 2 intermittently to flash a lamp 1. Initially, the transistor 3 is non-conductive current from source 2 passing via resistor 7, 8 and winding 6, the current flow through lamp 1 being insufficient to flash it. The current flow in winding 5 induces a positive voltage at the base of transistor 3 so that transistor is cut off, the field in the core 10 increasing to saturation. When this point is reached the voltage from winding 5 is reduced and replaced by a voltage of opposite polarity produced across resistor 8 so that the transistor 3 commences to conduct and the feed-back via windings 4, 5 produces heavy current flow in the transistor which bottoms, lamp 1 being lighted and core 10 saturated in the opposite direction. This increases until winding 6 induces a pulse in winding 5 to cause the transistor 3 to be cut off and the sequence of events is repeated. Potentiometer 11 is adjusted so that if the voltage across the lamp 1 is greater than a predetermined value diode 12 conducts and the transistor 3 is blocked so that the lamp 1 is protected from damage. The core 10 may not be completely saturated provided that the transition from intervals of pulse emission to no pulse is obtained as soon as the transistor current reaches a predetermined value.
Patent GB-1249189-A (GB)
Title: Traffic control system and method
IPC: G01S11/10
Filed: 1969-01-15
Abstract: 1,249,189. Radio navigation system. NATIONAL AERONAUTICS- & SPACE ADMINISTRATION. 15 Jan., 1969 [30 Jan.-, 1968], No. 2392/69. Heading-H4D; . The. subject matter of the. Specification is the same as. that, in Specification 1,241,874 but the claims relate to a different method of determining the position of an .object.
Patent GB-549704-A (GB)
Title: An improved dentrifice
IPC: A61K8/19
Filed: 1941-02-22
Abstract: 549,704. Dentifrices. LUNT & CO., Ltd., P., and DAVIES, J. H. WOOTTON-. Feb. 22, 1941, No. 2417. [Class 81 (i)] A dentifrice comprises a mixture in paste or powder form of a mechanical cleansing agent, e.g. chalk, and trisodium phosphate and including in the case of a paste a plasticiser, e.g. mixture of liquid paraffin, soft soap and water. An example consists of a mixture of trisodium phosphate, chalk, magnesia, liquid paraffin, soft soap, gum tragacanth, saccharin, perfume and water. Reference has been directed by the Comptroller to Specifications 326,755, 332,530, [both in Class 91], 390,250 and 434,866, [both in Group III].
Patent GB-732271-A (GB)
Title: A method for producing electrodes for galvanic batteries especially accumulators
IPC: H01M4/74
Filed: 1953-01-28
Abstract: 732,271. Batteries. AKTIEBOLAGET FULLMANEN. Jan. 28, 1953 [Feb. 11, 1952], No. 2432/53. Class 53. An accumulator electrode comprises a carrier for the active material, the carrier being made of threads or fibres which are coated with metal before the active material is applied. The frame and contact strips of the electrode are made by compressing the electrode along certain lines and then subjecting the compressed portions to a further metal-plating treatment to bring the frame and contact strips to the thickness of the remainder of the electrode. The additional metal may be deposited from its vapour or by spraying or by electroplating. Specifications 681,999 and 732,270 are referred to.
Patent GB-715500-A (GB)
Title: Process for making cheese of the cheddar type
Inventor: KRAFT NORMAN
IPC: A23C19/072
Filed: 1952-01-30
Abstract: 715,500. Cheese. KRAFT FOODS CO. Jan. 30, 1952, No. 2484/52. Class 84 In a process for making cheese of the cheddar type including setting, cutting and cooking the curd and draining the whey from the curd, the drained curd, while in the form of discrete particles, is bathed under agitation in an aqueous solution of sodium chloride having a concentration and temperature selected in accordance with. the principle that increased concentration and temperature decreases the moisture content of the drained curd which, at the conclusion of the bath is separated from the brine, placed in forms and cured. Preferably the bath contains 4-15 per cent salt by weight and is maintained at a temperature between 85-135‹ F. As shown the usual steps including cooking are carried out in a cheese making vat until the whey acidity (reckoned as lactic acid equivalent) is about .16 to .22, preferably .18 per cent, and the curd is firm when the mixture is transferred to an inwardly sloping tray 18 on a curved table and is mixed by a rotating mixer 19 travelling back and forth longitudinally of the tray, the whey draining to a sump 20 whence it is pumped away and the temperature of the curd preferably being maintained between 90 and 105‹ F. by heating jacket (26, not shown) beneath the tray. When the acidity of the whey is .21 to .30 pumping is stopped and a sufficient amount of brine preheated to the desired temperature to cover the layer of curd is admitted to the table and which remains for a minimum period of 2 to 5 minutes during which time the curd is stirred and after which it may then be packed into hoops, dried, enclosed in a wrapper or paraffined and cured.
Patent GB-728175-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J29/82
Filed: 1953-01-28
Abstract: 728,175. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., and BOSWELL, D. Jan. 28, 1954 [Jan. 28, 1953], No. 2490/53. Class 39 (1). The electrode assembly has at least one electrode supported from two or more parallel insulating rods which pass through holes in a flange attached to the electrode, said flange carrying a metal spring which presses on the flange and on an insulating rod so as to press the rod against the edge of the hole in the flange thereby attaching the electrode firmly to the rod, the spring also extending outwardly to press on the inside of the envelope to support the electrode resiliently from the envelope, the pressure of the envelope on the spring tending to press the insulating rod and the flange more firmly together. Anode 1 in the form of a hollow cylinder has substantially triangular metal flanges 3 and 4 through which pass three steatite rods 9. U-shaped spring members 8 preferably made of " Inconal " (Registered Trade Mark) pass through small apertures in flange 4 with the bend of the U pressing on the rods 9 whilst the free ends of the spring 7 press on the envelope 10. The springs are prevented from falling out by cranking the arms 7 as shown behind the flange, or alternatively the distance between the arms of the spring is greater than the separation of the holes through which they pass so that the arms of the spring press on the outer edges of the holes. A similar spring system supports the cathode and modulator which is of the kind described in Specification 722,345.
Patent GB-510168-A (GB)
Title: Manufacture of polymeric compounds
IPC: C08F8/28
Filed: 1938-01-27
Abstract: 510,168. Polyvinyl acetals. GROVES, W. W. (I.G. Farbenindustrie Akt.-Ges.). Jan. 27, 1938, No. 2633. [Class 2 (iii)] Polyvinyl alcohols or derivatives thereof still containing free alcoholic hydroxyl groups are reacted with a.carboxylic acid that contains a reactive carboxyl group. Derivatives of polyvinyl alcohol include partially saponified esters' of polyvinyl alcohol with organic acids such as polyvinyl acetate, formate, propionate or butyrate, or polyvinyl alcohols wherein part of the hydroxyl groups have been reacted with an aldehyde or ketone such as formaldehyde, acetaldehyde, butyraldehyde, isobutyraldehyde, cyclohexanone or methylcyclohexanone. Suitable azo-carboxylic acids, which may also include other groups such as halogen, nitrohydroxy or amino-groups, include aldehydecresotinic acid, glyoxylic acid, levulinic acid, acetone dicarboxylic acid, o-, m-, or p-benzaldehyde carboxylic acid, salicyladehyde carboxylic acids, terephthalaldehyde-carboxylic acid, 3:4- dimethoxybenzaldehyde carboxylic acid, 4- chlorobenzophenone-21-carboxylic acid, 3-nitrobenzophenone-2'-carboxylic acid, 3-aminobenzophenone-21-carboxylic acid and cyclohenanone-1-carboxylic acid-3. The starting materials may also be compounds which are saponifiable during the reaction to the desired starting materials, such as the acetal of glyoxylic acid. In examples. (1) glyoxylic acid is reacted with an aqueous solution of polyvinyl alcohol; (2) m-benzaldehyde carboxylic acid is reacted with a suspension of polyvinyl alcohol in methanol; (3) polyvinyl acetate is reacted with glyoxylic acid in the presence of sulphuric acid ; (4) the ester-acetal of glycollic acid is reacted with polyvinyl alcohol in the presence of sulphuric acid.
Patent GB-214017-A (GB)
Title: Improvements in or relating to the driving mechanism of railway locomotives
IPC: B61C9/14
Filed: 1923-01-30
Abstract: 214,017. Internal Combustion Locomotives, Ltd., and Ingoldby, M. K. Jan. 30, 1923. Hydraulic transmission apparatus; reversing- gearing; transmission gear between separate axles.-The track wheels are driven from an internal-combustion engine A through reversing gearing C and variable-speed hydraulic apparatus B comprising a pump unit of the reciprocating piston type and a motor unit, this apparatus being such that it gives any number of speed ratios from zero to a direct drive, but does not give over-speeds. The reversing gear comprises a driving bevel wheel C<4> and driven wheels C<2>, C<3> mounted respectively on shafts c<2>, c<3> which drive the axle through spur gearing C<2x>. The axles are coupled together by coupling rods or, as shown, by shafts D<1> and bevel gearing. Specifications 3207/09, 10108/09, and 150,794. [all in Class 69 (ii), Hydraulic presses &c.], are referred to.
Patent GB-1515872-A (GB)
Title: Process for recovering upgraded hydrocarbon products
IPC: C10G1/00
Filed: 1975-05-14
Abstract: 1515872 Treating oil shale or hydrocarbon fractions STANDARD OIL CO 14 May 1975 [31 May 1974 (6)] 02966/78 Divided out of 1515871 Heading C5E Oil shale or hydrocarbon fractions containing paraffins, olefins, tautomeric olefin-equivalents or acetylenes, as such or as substituents on ring compounds, are contacted at 600-900‹F in the absence of externally-supplied hydrogen, with a water-containing fluid at a concentration and superatmospheric pressure sufficiently high that the water is present at a density of at least 0À10 g/ml and thereafter lowering the temperature and/or pressure so that the water is a less effective solvent for the hydrocarbon products and separate phases are formed. The process can be carried out in the presence of a sulphur-resistant catalyst comprising an alkali metal carbonate or hydroxide or an oxide or salt of a transition metal of Group IVA, VA, VIA or VIIA or a sulphur- and nitrogen-resistant catalyst comprising a compound of Ru, Rh, Ir, Os, Pd, Ni, Co, or Pt optionally together with a promoter comprising an alkali or alkaline earth metal hydroxide or carbonate or an oxide or salt of a transition metal of Group IVA, VA, VIA or VIIA. The water-containing fluid can contain biphenyl, pyridine, aromatic oils, mono- or polyhydric compounds, white oil, jet fuel, decalin or cyclohexane. The examples describe the treatment of oil shale, tar sand oil, vacuum gas oil, atmospheric and vacuum residual crude oils, the hydrogenation of 1-hexene and the cracking of alkyl aromatics and n-heptane.
Patent GB-910614-A (GB)
Title: Method and apparatus for mixing materials
Inventor: JR MONTGOMERY PHISTER
IPC: B01F13/10
Filed: 1960-01-27
Abstract: 910,614. Automatic control systems for mixing materials. THOMPSON RAME WOOL DRIDGE Inc. Jan 27, 1960, No. 2998/60. Class 38 (4). [Also in Groups II and XL (b)] Apparatus for producing a predetermined composition e.g. cement from a number of selected materials comprises grinding mills 110a ... 110n through which the raw materials are passed to storage bins 120a . . . 120b, the materials in the bin 120a then being passed through a grinding mill 160 to a storage bin 165 in which they are stored separately whilst the materials in bin 120b are mixed by a mixing means 130 and passed through grinding mills 140, 170 to storage bins 150, 175 respectively, the mixture - in the bin 175 and the separate materials in the bin 165 then being analysed by an analysing means 180 to produce signals which are fed to a computer 185 in which the signals are compared with signals related to the composition of the desired final mixture, means being provided whereby selected materials may be added to the mixture in bin 150 from the bin 165 according to signals derived by the computer 185 as the result of the comparison of signals therein whereby to produce a final mixture having the desired composition. The dust and residue from the mixture of the raw materials may also be analysed and used as a correction for the final mixture. The analysis of the materials and the mixture may be made by irradiating the materials by X-rays and then separating the emitted X-rays by a reflecting crystal and measuring the radiation intensity with a geiger counter. Alternatively the materials may be burned in an electric arc and measuring the intensity of the light radiation by photographic or electronic means. In another instance where speed of analysis is unimportant the standard wet chemical analysis method may be used.
Patent GB-671823-A (GB)
Title: Improvements in and relating to punched magnetic core laminations for electric induction apparatus such as transformers
IPC: H01F27/245
Filed: 1949-02-03
Abstract: 671,823. Transformers and inductances. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 3, 1949 [Feb. 6, 1948], No. 3007/49. Class 38 (ii). In order to obtain maximum utilization of the sheet strip in forming an air gapped core of E and I laminations the three legs 7, 8 of the E portion 2 are made of equal length and the I portion 9, obtained when punching a pair of E portions, is provided at opposite ends on at least one side thereof short integral extensions 10 of projection corresponding to the air gap 12 required, and which extensions are arranged to abut the ends of the outer legs 7 and thereby form air gap 12 between the end of the middle leg 8 and the middle portion of the I lamination 9. The outer corners of the middle leg may be bevelled when punching to facilitate coil assembly and the portion removed may form a notch 11 on the I lamination. A double reactor may be made from two E portions separated by an I portion having the integral extensions on both sides thereof (Figs. 3 and 4, not shown). By making the extension on one side different from that on the other two air gaps of different widths may be obtained by inverting the I portion. Figs. 5-7 (not shown).
Patent GB-727982-A (GB)
Title: Improvements in or relating to the sensitization of photographic silver halide emulsions
Inventor: SCHOUWENAARS MARCEL ADAM
IPC: G03C1/09
Filed: 1952-02-05
Abstract: 727,982. Photographic emulsions. GEVAERT PHOTO-PRODUCTEN N.V. Feb. 5, 1953 [Feb. 5, 1952], No. 3017/52. Class 98 (2). The sensitivity of a photographic silver halide emulsion is increased by adding, in sensitizing amount, to the emulsion and/or a layer adjacent thereto, a stannous compound and a compound of a metal more electro-positive than silver. In examples (1) and (2), data are given for the sensitivities of silver bromiodide and silver chlorobromide emulsions respectively, to which have been added auric chloride, stannous chloride, and both auric and stannous chlorides. Specifications 570,393, 602,158, 602,160, 636,140, 658,592, 658,826 and 663,020 are referred to.
Patent GB-378785-A (GB)
Title: Improvements in steering gears for automobile vehicles
IPC: B62D3/04
Filed: 1932-02-02
Abstract: 378,785. Motor vehicle steering-gear. DAIMLER-BENZ AKT. - GES., Untertiirkheim, Germany. Feb. 2, 1932, No. 3081. Convention date, Feb. 2, 1931. [Class 79 (v).] In steering-gear for vehicles having pivoted half-axles (not shown), each wheel being swivelled by a separate transverse rod h<1>, h<2> pivoted directly to the steering swivel i<1>, i<2> and connected by ball-and-socket joints g<1>, g<2> to an arm f secured to a vertical shaft e, the vertical shaft is driven directly through worm or other gearing c, d by the steering shaft a mounted on the sprung frame of the vehicle and actuated by the steering hand-wheel. In the construction shown the shaft e and worm gearing are enclosed in a casing k secured to a transverse frame member l, the arm f is directed rearwardly of the vehicle, and an elastic coupling b is provided in the shaft a.
Patent GB-342517-A (GB)
Title: Improvements in or relating to the utilization of the heat of steam engine exhaust in hot-houses
IPC: F01K9/00
Filed: 1930-01-29
Abstract: 342,517. Heating buildings. HAPPEL, O. 45, K÷nigsallee, Bochum, Germany. Jan. 29, 1930, No. 3100. Convention date, April 22, 1929. [Class 64 (ii)]. Steam engine exhaust is supplied to a water-cooled condenser, and the water heated therein is pumped through air heaters in hothouses, blowers circulating air at high velocity through the heaters. A turbogenerator 2, 3 has, in addition to the usual condenser 4, a supplementary condenser 4<1>, to which the required quantity of steam is taken from the turbine through pipe 6. The heated cooling water is driven through a pipe 6<11> to the air heaters 5, which are formed of ribbed elliptical tubes and returned to the condenser through a pipe 6<1>. The blower drives air at high velocity through each heater, and the hot air may pass directly into the house, or into the pipe 10 having openings 11. The air may be moistened and the efficiency of the condensers improved by spraying water into the stream of air being sucked in.