baber/WOPTO huggingface dataset:
Patent GB-594532-A (GB)
Title: Improvement in omnidirectional radio navigation-aiding systems
IPC: G01S19/42
Filed: 1944-08-08
Abstract: 594,532. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 8, 1944, No. 15097. Convention date. Sept. 30, 1942. [Class 40 (v)] In a navigational beacon in which a field pattern with a rotating directional component is radiated, a reference phase is provided by an omnidirectionally radiated carrier of the' same frequency which is modulated at a frequency which is an integral multiple and at a frequency which is an integral submultiple of the frequency of rotation of the directional pattern. At the transmitter, Fig. 1, a 60 c.p.s. voltage obtained from the 720 c.p.s. oscillator 13 by frequency divider 15 is fed to balanced modulator 1 and also through 90 degrees phaseshifter 17 to the balanced modulator 3. The radio frequency input to the modulators is provided by oscillator 5 and amplifier 7 and the modulator outputs are fed to the aerials N, S, E and W to produce a radiation pattern rotating at 60 c.p.s. Radio frequency from power amplifier 9 is radiated omnidirectionally from aerial 11 and modifies the radiation from aerials N, S, E and W to produce a rotating cardioid pattern. The output from amplifier 9 is also modulated by modulator 23 with 20 c.p.s. obtained from frequency divider 19 and 720 c.p.s. from oscillator 13 combined with the 20 c.p.s. in circuit 21. The output from receiver 25, Fig. 2, is fed to filters 29, 31 and 33 which select respectively the 20 c.p.s. and 720 c.p.s. signals and also the 60 c.p.s. modulation produced by the rotating pattern. The 720 c.p.s.component is fed directly to one deflection circuit of the cathode-ray oscillograph 35 and through the 90 degrees phase-shifter 37 to the other deflection circuit to produce the circular trace 49, while the 20 c.p.s. component after conversion to 60 c.p.s. in the multiplier 34 is fed to the 90 degrees phase-shifter 41 and cathode-ray tube 39 to produce the circular trace 51. The 60 c.p.s. modulation from filter 33 is fed to an impulse shaper 43 producing one sharp pulse corresponding to the peak of the modulation cycle which is fed to radial deflection circuits of tubes 35 and 39 to produce the deflections 45, 47. The face of tube 39 may be calibrated in bearings in coarse steps of 30 degrees, while the face of tube 35, the trace on which occurs twelve times during one rotation of the directional pattern, is calibrated over a range of 30 degrees to provide fine bearing indications.
Patent GB-692528-A (GB)
Title: Improvements in or relating to differential gearing
Filed: 1951-06-26
Abstract: 692,528. Differential gear. WILDHABER, E. June 26, 1951 [June 27, 1950], No. 15141/51. Class 80 (ii). Long floating planet pinions 50 mesh three internally toothed wheels, the outer 51, 53 of which are splined e.g. on vehicle axle shafts 55, 81. and have numbers of teeth which are respectively less and greater than that of the centre wheel 52 which is secured to a built-up casing 58, 59 carrying the usual driving bevel 70. This dissimilarity in numbers of teeth results in the side-wheels 51, 53 having pitch-diameters respectively less and greater than that of the driving centre-wheel 52, so that, although the planet 50 is of uniform diameter and pitch throughout its length, it behaves like a triple stepped planet, whereby differential action is possible. The dissimilarity between the numbers of teeth of the respective side wheels and centre wheel may be equal to or greater than the number of planet-pinions provided, and the tooth-difference of each side-wheel may also differ to result in drive torque which is equalised or divided in a desired proportion as for a distributed front-rear drive in a vehicle. The planet-pinions may be mounted on spindles in a floating cage, Fig. 2 (not shown), or may be supported only on a load-equalising central wheel 57 or roller, which may float, as shown, or be caged with two planet-pinions; Figs. 11-16 (not shown). In the last mentioned case, the differential casing is sealed and filled with oil, independently of the usual oil for lubricating the drive wheel 70 &c., which provides a differential-restricting brake-action by tooth-pumping, in addition to braking provided by tooth friction. The gear teeth may be straight or helical. In Fig. 10 (not shown), the two driven shafts drive the front and rear axles of a vehicle, and are connected with the side-wheels by constant - velocity - ratio universal joints. Various casing assemblies are shown, that in Fig. 3 consisting of the parts 58, 59, 52, drivingly connected by teeth 60 and held together by a left- and right-hand threaded sleeve 63 the reduced centre portion of which is stressed slightly beyond its elastic limit on tightening to equalise its axial pressure.
Patent GB-375953-A (GB)
Title: Improvements in or relating to the manufacture of materials for road making and likepurposes
IPC: E01C7/18
Filed: 1931-05-22
Abstract: A road making material is made by a process comprising the known step of coating a fluxed aggregate with a relatively soft bitumen, with or without the addition of fines, and subsequently adding pulverized asphalt composed of hard bitumen, and finely divided mineral matter. The asphalt contains preferably calcareous mineral, as an example Boeton asphalt containing 40 per cent relatively hard bitumen (penetration 15-20) and 60 per cent calcareous material, is used. The use of a hard asphalt permits a larger amount of fines (up to 20 per cent) to be used than in the prior process.  The amount of asphalt added is 1-5 per cent and varies with the amount and hardness of the bitumen used to coat the fluxed aggregate.  In an example a clean stone graded to give a close aggregate is coated with a volatile fluxing oil and then with from 5-10 per cent soft bitumen (penetration not less than 75 or more than 350) at 250-300 DEG  F. 10-15 per cent of fines and 1-5 per cent of Boeton asphalt is added, the asphalt being pulverized so that it will pass a sieve having 80 meshes to the linear inch.
Patent GB-382244-A (GB)
Title: Improvements in or relating to hydraulic drives for machine tools
IPC: B23Q5/26
Filed: 1932-05-28
Abstract: 382,244. Hydraulic transmission of power. ZAHNRADER & MASCHINENFABRIK RABENSTEIN GES., Rabenstein, Saxony, Germany.-(Assignees of Wegerdt, F. ; 2, Kyffhauserstrasse, Chemnitz, Germany.) May 28, 1932, No. 15188. Convention date, May 30, 1931. [Class 69 (ii).] In hydraulic machine - driving arrangements, the driven part is operated by two or more pistons of different cross sections, the pump a supplying the cylinders b, c singly or in combination.
Patent GB-1414699-A (GB)
Title: Process for the preparation of natural resin products
IPC: C08G63/00
Filed: 1973-03-29
Abstract: 1414699 Modified natural resin products HOECHST AG 29 March 1973 [29 March 1972] 15208/73 Addition to 1403895 Heading C3R A modified natural resin product is obtained by reacting (a) a natural resin, (b) an ethylenically unsaturated dienophilic monomer free from carboxylic groups and anhydride groups and (c) and α,#-olefinically unsaturated carboxylic acid component in a proportion of at least 5% by weight based on the natural resin. The three components may be reacted simultaneously or successively. The carboxylic acids may be esterified before or after being added to the reaction mixture. Non-polymerizable acids also may be present. A metal compound may be included to form a salt or resinate. Other resins may be included. In examples colophony is reacted with maleic anhydride, styrene, vinyl toluene, maleic acid, indene, an olefinic hydrocarbon fraction and styrene-maleic anhydride telomers; other materials present are zinc oxide, glycerol, pentaerythritol, calcium acetate, p.-tert.-butyl peroxide, hydrocarbon resins, a propoxylated novolak resin and xylylene. Uses.-Printing ink binders and adhesives.
Patent GB-794156-A (GB)
Title: Improvements in or relating to the preparation of gamma-(aryloxy) butyric acids
IPC: C07C59/68
Filed: 1956-05-16
Abstract: Gamma-(aryloxy) butyric acids are made by heating a sodium phenolate with butyrolactone in the presence of a solvent or liquid diluent, water being substantially excluded from the reaction mixture. Solvents or diluents specified are mono- and di-chlorobenzene. Examples illustrate the preparation of gamma-phenoxy-, gamma-(2-methyl-4-chloro-phenoxy)-, gamma-(2 : 4-dichloro-phenoxy)-, and gamma-(2-, 3-, and 4 - methyl - phenoxy) - butyric acids. Specification 758,980 is referred to.
Patent GB-920646-A (GB)
Title: A dough-dividing machine for bread dough or similar material
IPC: A21C9/08
Filed: 1961-04-27
Abstract: 920,646. Dough-dividing machines. K. KEMPER. April 27, 1961 [May 13, 1960], No. 15287/61. Class 87(2). Dough pieces a<SP>6</SP> from a divider a are fed to a kneader c by carriers b<SP>3</SP> supported by chains b<SP>4</SP> driven by sprockets b<SP>2</SP>. The timing of the dough divider and the carriers is arranged so that each carrier receives one or more dough pieces.
Patent GB-689396-A (GB)
Title: Improvements in or relating to mineral oil lubricating compositions
Filed: 1950-06-19
Abstract: Oxo alcohol phosphates are prepared by the action of phosphorus oxychloride on the oxo alcohol in the presence of an amine.  The alcohol may be obtained by the reaction of mono-olefins with carbon monoxide and hydrogen in the presence of a cobalt catalyst at 300-350 DEG  F. and 3000 lbs./sq. inch pressure to give an aldehyde, which may be subsequently reduced to the primary alcohol.  Any fraction of the mixed alcohol product, for instance, a C8 alcohol, may be treated.  Suitable amines include pyridine, dimethylamine, or diethylamine.  The alcohol, phosphorus oxychloride and amine are reacted at a temperature from - 10 DEG  to + 10 DEG  C., and the mixture allowed to reflux for several hours, then diluted with water and the organic layer washed with water, salt solution or dilute sodium carbonate until neutral. Volatile constituents are removed by distilling at 180-190 DEG  C. under 5-6 mm. vacuum, the crude oxo ester being left behind.  The crude ester may be incorporated in lubricating oils as an extreme pressure additive (see Group III).ALSO:A lubricating composition comprises a mineral base lubricating oil and a minor proportion of a phosphoric acid ester of a crude oxo alcohol.  Preferably the oxo alcohol is a crude C8 alcohol, but other fractions, e.g. C9, C11-12 or C13-14, may be used. The ester may be prepared by the action of phosphorus oxychloride on the oxo alcohol in the presence of an amine (see Group IV(b)), and may be used in amounts from 0.5 to 10 per cent, preferably 0.5 to 3.0 per cent.  Other additives such as corrosion inhibitors, anti-oxidants, viscosity-index improvers and pour-point depressors may be present in the compositions.
Patent GB-416393-A (GB)
Title: Improvements in tubes or casings for cables transmitting mechanical power
IPC: F16C1/26
Filed: 1933-05-27
Abstract: 416,393. Bowden mechanism. HORSTMANN, J. H. G., 33, Shakespeare Avenue, NICHOLDS, D. W., 17, Foxcombe Road, and HORSTMANN GEAR CO., Ltd., Newbridge Works, all in Bath. May 27, 1933, No. 15330. [Class 80 (iii).] A flexible casing for a cable 1 transmitting mechanical power comprises a tube 2 of helically-wound wire, an outer fabric cover 5, and an intermediate sheath 3 of ductile metal such as lead. The sheath 3 may be in the form of tape which is wrapped helically or spirally around the tube 2 with its edges overlapping; alternatively it is deposited upon the tube by dipping. The cover 5 may be treated with a fireproofing compound and also painted or enamelled. Specification 327,943*, [Class 80 (iii)], is referred to.
Patent GB-494435-A (GB)
Title: A receptacle for paint brushes
IPC: B44D3/12
Filed: 1937-06-02
Abstract: 494,435. Paint - brush receptacles. HOLLOWAY, R. G. June 2,1937, No. 15370. [Class 66] A glass or metal receptacle for storing used paint brushes immersed in turpentine &c., is provided with a removable false bottom of gauze or perforated sheet metal supported by a flange 3 and preferably bulged downwardly towards the centre. The brushes are held in clips 5 which may be fixed to the wall as shown, or may be detachable and adapted to engage over the rim or, in the case of a vessel with an inwardly curled rim, they may be formed with flanges 13, 14, Fig. 6, adapted to engage between the rim 15 and an offset strip 17 attached to the wall.
Patent GB-1211481-A (GB)
Title: Method of manufacturing multiple cigarette filters
Inventor: BAUMANN LAURENCE LEE
IPC: A24C5/47
Filed: 1968-03-30
Abstract: 1,211,481. Cigarette filters. CIGARETTE COMPONENTS Ltd. 10 Jan., 1969 [30 March, 1968], No. 15428/68. Heading A2C. A continuous rod suitable for division into multiple tobacco smoke filter rods, is formed from filter rods which comprise at least two differing rods, a first rod having a paper wrapper and a second rod having a surface composed of plasticizer-sensitive fibres or filaments, preferably cellulose acetate, wherein each first rod is adhered to a continuous paper strip by a continuous line of adhesive, each second rod being adhered to the strip by patches on the strip of plasticizer-containing adhesive, which patches do not overlap the line of adhesive, enveloping the strip around the rods and adhering the overlapping longitudinal margins of the strip. The patches may be paired, positioned along and to either side of the adhesive line. Suitable plasticizers are triethylene glycol diacetate or triacetin. A polymer or copolymer of vinyl acetate in aqueous emulsion is suitable for use as the line adhesive.
Patent GB-612281-A (GB)
Title: Improvement in airplane wheel and brake
IPC: F16D55/32
Filed: 1946-05-23
Abstract: 612,281. Wheel brakes. ENGINEERING & RESEARCH CORPORATION. May 23, 1946, No. 15596. Convention date, May 29, 1945. [Class 103 (i)] An aeroplane wheel and brake assembly comprises a wheel mounted on a fixed axle by .means of a single bearing having a single row of balls, braking means surrounding the axle at one side of the bearing and having fixed parts forming an abutment for one side face of the inner race of the bearing, and means screwthreaded to the axle at the other side of the bearing and abutting the adjacent side of the inner race for forcing the race against the abutment. As shown, the wheel is in two halves connected by a series of bolts 12, and is mounted on the axle 2 by a single ball-bearing 4 arranged in the central plane of the wheel and located between a flanged sleeve 25, keyed to the axle, and an axle nut 26. A second flanged sleeve 20 abuts a plate 21 welded to the axle, and the two sleeves and the plate are clamped together by a series of bolts 23 which extend through holes in two non-rotatable friction discs 30, 32 arranged between the sleeve flanges.22 and 25 and held apart by a spring 38. The spacing of the sleeves and hence the position of the bearing 4 may be adjusted by shims 28. A disc 40, rotatable with the wheel and formed with peripheral recesses receiving the square heads 14 of the bolts 12, is arranged between the discs 30, 32 and the brake is applied by an annular piston 52 which is movable in an annular channel 50 in the flange 22 to which pressure fluid is supplied through a pipe 54.
Patent GB-1432445-A (GB)
Title: Modulator for up-signals in a bi-directional catv system
IPC: H04N7/16
Filed: 1973-04-02
Abstract: 1432445 Alarm systems HOCHIKI CORP 2 April 1973 [1 April 1972] 15633/73 Heading G4H [Also in Division H4] In a CATV system provision is made for return or "up" signals from subscribers to the central station, e.g. for alarm &c. The signals originate at the subscribers at frequencies different from the general "up" frequency of the system and are converted in modulator units having signal splitters which by-pass the broadcast TV, or "down", signals around the modulator circuit so that only the "up" signals pass through the modulators. As described the "down" TV signals are in the band 70 to 300 MHz and the "up" alarm signals in the band 20 to 60 MHz, but generated by the subscribers equipment, 14, at frequencies in the audio band, or alternatively in the frequency band,. up to 60 MHz. The alarm signals are returned from the subscribers equipment to the central station 6, 7, 8, via the distribution system which includes modulator units 10 to change the audio of r.f. alarm signal to the normal "up" frequency band 20 to 60 MHz. Each modulator unit includes a modulator 17 and signal splitters 18, 19. The splitters have filters 24, which by-pass the TV signals in the band 70 to 300 MHz, filters 23, which select the audio or radio frequency alarm signals for application to the modulator, and filters 22, which pass "up" signals in the band 20 to 60 MHz at the output of the modulator. If modulator units are required to be connected in cascade then the pass band of the bypass filters 24 is extended to include the "up" frequency range or further by-pass filters provided, to pass up signals from downstream modulator units, and the filter at the output side of modulator 17 is modified to eliminate the particular frequencies generated by downstream modulator units. Similar circuits Figs. 7, 8 and 9 (not shown) may be used in systems where some of the alarm frequencies from the subscribers are already in the normal "up" frequency band in addition to frequencies below 10 MHz, and the alarm signals in the up frequency band are transposed to different frequencies in the same band.
Patent GB-570211-A (GB)
Title: Improvements in gas escape reaction propelled devices
IPC: F02K9/08
Filed: 1942-11-06
Abstract: 570,211. Explosives; projectiles; cartridges. TAYLOR, J., OWENS, R. D. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 6, 1942, No. 15689. [Classes 9 (i) and 9 (ii)] A gas-escape reaction-propelled device such as a rocket projectile or aeroplane take-off apparatus comprises a. compact smokeless powder charge 5, which is to generate the propulsive gas, in association with one or more oxidizing charges 6, 7, which are so shaped and positioned that substantially the whole of the surface thereof is swept by the stream of propulsive gases before the stream escapes through the venturi nozzle 2 to the atmosphere. The function of the charges 6, 7 is to supply oxygen to the propulsive gases to burn carbon monoxide and hydrogen contained therein. The charges 6, 7, which may be tubular, as shown, or rodlike, and enclosed in a celluloid container, are made by casting a composition which is pourable at 115‹ C. or less and which comprises (a) ammonium nitrate, (b) an alkali metal or ammonium chromate, bichromate or polychromate (the function of which is to enable the decomposition of the ammonium nitrate to take place at a lower temperature than would otherwise be the case), and (c) a solid non-alkaline non-oxidizable substance which promotes fusion of the ammonium nitrate and which may be anhydrous alkali metal nitrates, perchlorates or chlorides, anhydrous alkaline earth metal nitrates or chlorides, lead nitrate, ammonium perchlorate, anhydrous magnesium sulphate or hydrated alkaline earth metal nitrates or chlorides. The smokeless powder charge may comprise nitroglycerine, nitrocellulose and diethyl-diphenyl urea. A blackpowder igniting charge 8 is disposed between the charge 5 and a seal 4 which separates the combustion chamber 1 from a threaded union À 3 adapted to receive the projectile &c. Grids 10, 11, 12 separate the charge from each other and from the venturi nozzle. The nozzle may have a temporary waterproof closure. Specifications 570,075 and 570,210 are referred to.
Patent GB-1300622-A (GB)
Title: Let-off motion in loom
IPC: D03D49/06
Filed: 1970-04-02
Abstract: 1300622 Positive let-off motions TEIJIN Ltd 2 April 1970 [3 April 1969] 15732/70 Heading D1E A positive let-off motion has a movable back rest 12 controlling a variable speed transmission drive 4 to the warp beam 11 such that an initial movement of the back rest increases or decreases rotational speed of the beam 11, and further movement operates a further control means to increase or decrease the rotational speed still further to allow the back rest to move back to its original position. The back rest 12 acts through levers 13 and 15, and rod 16 on a threaded rod 21 which has screwed thereon a joint 34 controlling the variable speed transmission 4. The further control means may comprise a lever 19 oscillated by a cam ring 32 acting on a follower 31 and having pawls 25, (26) and ratchet wheels 27 and 28 with teeth facing in opposite directions such that when rod 21 is lowered, wheel 27 engages with one of the pawls and it and the rod 21 are rotated so that joint 34 is further lowered and the rotational speed of the beam further increased. Other further control means may include a bevel gear mechanism Fig. 4 (not shown), or electric switches or a photoelectric cell on the back rest controlling an electric motor which alters the speed control of variable speed transmission 4, or a hydraulic piston and cylinder attached to the back rest and controlling transmission 4 through a hydraulic line.
Patent GB-593938-A (GB)
Title: Improvements in or relating to the formation of coloured photographic images by colour-development
IPC: G03C7/34
Filed: 1945-06-20
Abstract: The less reactive form of a -naphthol-2-carboxylic acid obtained by passing dry carbon dioxide over anhydrous sodium naphthoate may be converted into the more reactive form by refluxing for some hours with a 5 per cent alcoholic solution of concentrated sulphuric acid, cooling and precipitating with water.  The ethyl ester of a -naphthol-2-carboxylic acid is prepared by reacting an alcoholic solution of the less reactive a -naphthol-2-carboxylic acid with dilute silver nitrate solution to obtain the silver salt and heating this in a sealed tube with ethyl iodide.  The isobutyl ester of a -naphthol-2-carboxylic acid is prepared by refluxing the more reactive a  - naphthol - 2 - carboxylic acid with thionyl chloride in petroleum ether and refluxing the acid chloride obtained with isobutyl alcohol.  The hexyl ester is obtained by refluxing the acid chloride with a benzene solution of sodium hexoxide, and the benzyl ester by refluxing the acid chloride with benzyl alcohol.
Patent GB-634519-A (GB)
Title: Improvements in vehicle brakes
IPC: F16D51/22
Filed: 1947-06-16
Abstract: 634,519. Internally expanding brakes. PARKER, H., and ROWLAND, T. C. E. June 16, 1947, No. 15747. [Class 103 (i)] In an internally-expanding shoe drum brake, the shoe retraction mechanism is such that the retraction force is maintained substantially constant and independent of the degree of brake lining wear. A lever. 23, pivoted to the back plate at 24, has one end 27 under the tension of a spring 30 so that its other end 28 is pressed inwardly against an abutment 17 on the shoe. - The angle of the lever 27 with respect to the spring 30 is such that as the wear of the lining takes place, the angle becomes more acute, thereby decreasing the leverage so as to offset the increase force due to the extension of the spring 30. A lug 32 is provided .on the lever which may be engaged by the end of a bar passed through a hole 35 in the shoe in order to move the lever out of contact with the abutment 17, which is in the form of a pin, that may be removed when it is necessary to renew the brake lining.
Patent GB-296976-A (GB)
Title: Extruding machine head
IPC: B29C48/09
Filed: 1928-05-30
Abstract: 296,976. Goodyear Tire & Rubber Co., (Assignees of Wetmore, L.). Sept. 10, 1927, [Convention date]. Extrusion-machines; stream-cutting machines. -Machines for extruding relatively wide strips of rubber are furnished with adjustable valved outlets. The double-conical core 25 is adjusted in the mouthpiece 12 of the machine by the screwed rod 21 carried by an overhanging arm 17 integral with the mouthpiece. The material is extruded between the conical surface 27 of the core and the inner edge of a ring 29 fixed adjustably by the screwed ring 32, and is split longitudinally by the wire 36 so that the cut ends can be forced apart by vertical rollers and the product delivered as a flat sheet to a conveyer. Heating or cooling chambers 34, 35 are provided.