baber/WOPTO huggingface dataset:
Patent GB-477360-A (GB)
Title: Improvements in or relating to suction cleaning or sweeping machines
IPC: A47L9/28
Filed: 1936-06-26
Abstract: 477,360. Vacuum cleaners. BRITISH VACUUM CLEANER & ENGINEERING CO., Ltd., FRAME, W. J., and HUTCHINSON, R. J. June 26, 1936, No. 17826. [Class 8 (i)] In a vacuum cleaner the control switch k and a lamp d are carried in a detachable casing b of insulating material which engages a flat surface m<1> and an arched surface m<2> on the machine casing a. The casing b has partitions o, p enclosing a chamber in which are housed the control switch k and a resistance i in the lamp circuit. The switch controls the circuits of the motor and lamp, and is at a lower level than the top of the casing b, in order to prevent accidental operation. The partition p-carries terminals g with which the plugs h on the cable can be engaged. An aluminium lamp hood c with side perforations e is secured over the lamp. The casing is ventilated by means of holes q and passages r to the eye of the fan.
Patent GB-1004413-A (GB)
Title: Improvements in or relating to road traffic route determining apparatus
Inventor: PARKER ERIC
IPC: G08G1/00
Filed: 1960-05-20
Abstract: 1,004,413. Electric analogue computers; monogrammic signalling; road-traffic signalling. DECCA Ltd. Aug. 21, 1961 [May 20, 1960], No. 17839/60. Headings G4G, G4Q and G5C. Apparatus for determining and indicating the best route for road traffic comprises a number of threshold devices arranged as a network which simulates the possible routes, means for applying a voltage through an impedance between two selected points on the network and means for varying the threshold value of the voltage in one or more said devices in response to traffic speed or density, the direction of current flow between the points indicating the best route. The threshold elements may be neon tubes, valves or cold or hot-cathode devices. The electrical paths 10 of Fig. 2 simulate the various roads and each include threshold elements 11 and current sensing elements 12. The system is fed from a supply 18 through a resistor 19 and switches 20, 21, the latter being set to a destination and the former operating cyclically through positions representing a number of starting points. The sensing elements 12 control switches 16 (Fig. 3) which put an appropriate number of neon tubes 15 in or out of circuit in response to the average time of travel of traffic over the corresponding road, so that current will flow only through the path with the lowest total threshold voltage the part corresponding to the optimum route. All possible journeys are examined in sequence and the information for the best journey stored on relays in a store 28 operated in synchronism with switches 20, 21. The current sensing elements 12 may be photo-electric cells. In order to take into account different delays in opposite directions, a two-way street is simulated by the circuit of Fig. 4 including oppositely poled rectifiers 35, 36. One-way streets may be simulated by a single circuit branch including an appropriately poled rectifier. The various neon tubes switchable into the circuit may be replaced by a single tube (Fig. 5) in which the voltage across the tube is adjusted by automatic variation of the tap of a transformer secondary 44 in accordance with the output of a traffic sensing element 25. Either electrical or mechanical indicators may be placed at the sides of the roads displaying the information. The total voltage (or the initial striking voltage) over a path will be proportioned to the time of travel. The lit neons will provide a visual indication of the route. Specification 1,004,414 is referred to.
Patent GB-512412-A (GB)
Title: Improvements relating to electric resistance heaters
IPC: F24C7/06
Filed: 1938-01-25
Abstract: 512,412. Electric room heaters. WHITAKER, A., STEVENSON, J. B., LOCKWOOD, P. W., and BARNES, N. Jan. 25, 1938, No. 17953/39. Divided out of 512,319. [Classes 39 (iii) and 126] In an electric room heater comprising a reflector and exposed resistance elements, a guard rail made of light transmitting heat resisting material is provided. The reflector 1 comprises the reflecting surface 2 and back plate 3, and the tubular arms 6 are mounted behind the reflector and curve round to the front thereof. Each arm is provided with a terminal box 8, which includes means for supporting the resistance elements 20, 21, and the guard rail 19, the said arms being so positioned that the element 20 is supported with its centre-line coincident with the substantially straight focal line of the reflector, the element 21 parallel to and in front of the element 20, the guard rail 19 parallel to and in front of both elements. Specification 512,319 is referred to.
Patent GB-129714-A (GB)
Title: Improvements in the Manufacture of Aerial Propellers.
Inventor: MCGRUER EWING
IPC: B64C11/04
Filed: 1917-12-05
Abstract: 129,714. McGruer, E. Dec. 5. 1917. Screw propellers. - Around the ellipticallyshaped hub block B of a two-bladed propeller are bent layers C - - J which are all indicated in Fig. 3, which is a section near the root of a blade, while some of them are shown in Fig. 9, which is a section near its tip. The layers are bent into the form of a screw in the direction of action of the forces which tend to reduce the pitch when the propeller is in use. The application to a three-bladed propeller is described. By cutting out portions of the innermost layers at their broadest parts, a lighter and hollow blade is produced.
Patent GB-1111123-A (GB)
Title: Improvements in coating iron strip
Inventor: HENDRIKS EVERARDUS HENDRICUS
IPC: B22F7/04
Filed: 1964-04-30
Abstract: In a process of coating an iron strip with aluminium, a first layer of aluminium powder is applied to the strip and a second layer one particle thick coarser aluminium powder is then applied and the coating is sintered in H2 or H2 + N2 and finally cold rolled.  The particles of the first layer should be less than 20 microns, the particles of the second greater than 50 microns and the size ratio of the second to the first not less than 8:1. The powder may be applied with an adhesive such as polybutyl methacrylate and sintering may be carried out on the individual layers or on the combined layer.
Patent GB-583800-A (GB)
Title: Improvements in or relating to wireless receiving systems
IPC: H03G11/00
Filed: 1942-12-19
Abstract: 583,800. Wireless receiving circuits. SLAFFER, M., and WRIGHT, C. S. Dec. 19, 1942, No. 18083. [Class 40 (v)] In a wireless receiver, employing cumulative grid detection, interference peaks are levelled to those of the signal by the connection of a diode 3 between the grid of the detector 2 and a variable tapping on a bias resistance 4 in the cathode lead. As shown, valve 1 is the last H.F. valve of a retroactive receiver feeding a cumulative grid detector 2. The invention may also be applied to a superheterodyne receiver.
Patent GB-735693-A (GB)
Title: Process for the manufacture of laevulinic acid esters
Inventor: LOCK RITCHIE HART
IPC: C07C59/185
Filed: 1951-07-31
Abstract: In the manufacture of laevulinic acid esters furfuryl alcohol is heated with another primary or a secondary alcohol under substantially anhydrous conditions with agitation in the presence of hydrogen chloride or hydrogen bromide as catalyst and the furfuryl alcohol is gradually added to the other alcohol at a rate such that at no time does the amount of unreacted furfuryl alcohol present in the reaction mixture exceed 2 per cent by volume of the other alcohol.  Alcohol starting materials specified are methanol, ethanol, n-propanol, isopropanol, n-butanol, n-pentanol, isopentanol, n-hexanol, n-octanol, n-nonyl alcohol, n-decanol, an alkoxy-ethanol, e.g. b -methoxy- or b -ethoxy-ethanol, a cycloaliphatic alcohol, e.g. cyclohexanol and tetrahydrofurfuryl alcohol.  The furfuryl alcohol may be added to the other alcohol while the latter is maintained at the boil, under atmospheric or reduced pressure.  The process may be carried out by continuously withdrawing part of the reaction mixture during the reaction and adding furfuryl alcohol, fresh amounts of the alcohol to be esterified and hydrogen bromide or chloride to replace the constituents withdrawn.  In examples methyl, ethyl, n-butyl, isobutyl, cyclohexyl, b -methoxy- and b -ethoxyethyl, tetrahydrofurfuryl, n-propyl, isopropyl, n-amyl, isoamyl, n-hexyl, n-octyl and n-nonyl laevulinates are obtained by gradually adding furfuryl alcohol to the appropriate alcohol boiling under reflux and containing hydrogen chloride (1-4, 6-9); (3) is repeated at a temperature below the boiling point of the alcohol; n-decyl laevulinate is prepared in a similar process (5) and n-butyl laevulinate is prepared by a similar process to (3) but using hydrogen bromide (9) and n-butyl laevulinate is obtained in a continuous process in which n-butanol containing hydrogen chloride is boiled under reflux whilst n-butanol containing hydrogen chloride and furfuryl alcohol are added and reaction mixture is withdrawn at the same rate.  n-Butyl laevulinate is isolated by distillation (10). The esters may be converted to laevulinic acid by hydrolysis with water or salts by hydrolysis with metal compounds of alkaline reaction.
Patent GB-120730-A (GB)
Title: Improvements in Coin-freed Apparatus.
Inventor: COTEAU GASTON-LUCIEN BELLIN DU
IPC: G07F1/04
Filed: 1918-11-07
Abstract: 120,730. Bellin du Coteau, G. L. Nov. 14, 1917, [Convention date]. Delivery of articles stored in separate compartments.-A book, opera-glass or other article to be hired is released by the insertion of two coins, one serving as payment for the use and the other as security for the article, the latter being refunded on replacement of the article. In the arrangement shown, casings 1 are provided with two coin slots 3, 4 and a slot 11 to receive a plate 10 secured to the cover of a book and having notches 33, 34 which are engaged by pins 32 mounted on coin shoots 13, 14 independently pivoted on an axis 15. Coin action, mechanical-connexion and multiplecoin.-Coins inserted in the shoots are retained by pivoted fingers 18, 19 extending through holes in the shoots. Pins 25, 26 connected by a bar 27 are mounted adjacent to holes 23, 24 in the shoots and, when these are obstructed by the presence of coins, the actuation of the pin by a knob 30 mounted on a spring 28 rocks the shoots in the direction of the arrow 40, thus removing the pins 32 from the notches 33, 34. On withdrawal of the book and release of the knob, the coin shoots arc pressed back by springs 35, 36 to points beyond their initial positions, thus removing the coins from engagement by the fingers 18, 19 and allowing them to drop. The small coin falls into a receiver and the largo coin 17 rests on a ledge 39. Returning coin.-On returning the book to its position, the engagement of the plate 10 with the notched ends of the pins 32 returns the shoots to their original positions, allowing the coin 17 to fall into a shoot 37 by which it is refunded. Registering.-A counting-wheel 45 is actuated by a spring blade secured to the shoot 13.
Patent GB-458139-A (GB)
Title: Improvements in or relating to directional lighting fittings
IPC: F21V5/00
Filed: 1935-06-26
Abstract: 458,139. Reflectors combined with refractors. GENERAL ELECTRIC CO., Ltd., and DEBENHAM, W. F. S., Magnet House, Kingsway, London. June 26, 1935, Nos. 18306 and 30694. [Class 75 (ii)] A domed reflector 4 which is a surface of revolution and produces substantially no asymmetry in the light distribution, reflects light from the source 5 at a substantial part of its surface towards the glass skirt 2 which bears prisms 3 with substantially vertical edges to deflect light towards preferred vertical planes. Diffusing flutes 6 are provided at the outer surface of the skirt. The latter is cylindrical or slightly conical. British Specification 789/11, [Class 75 (ii)], and U.S.A. Specification 1,916,169 are referred to.
Patent GB-613319-A (GB)
Title: Improvements in the manufacture of dyestuffs
Filed: 1946-06-18
Abstract: 31 - Acetyl - 2 - sulpho - 4 - (o - alkyl - aryl-amino)-anthrapyridones are obtained by heating ethyl acetoacetate with a salt of a 1-amino-2-sulpho-4-(o-alkyl-aryl-amino)-anthraquinone in presence of a basic substance, the o-alkyl-aryl amino radicle having only one alkyl group in o-position as the only substituent.  Alkali metal acetates, hydroxides or carbonates are specified as basic substances. The products are soluble in water and in organic solvents and are used to dye wool, and (by solvent dyeing methods) cellulose esters and ethers red shades.  An example describes the preparation of the 4-o-toluidino body.  1 - Amino - 2 - sulpho - 4 - (o - alkyl - aryl-amino) anthraquinones are prepared by heating 1 - amino - 2 - sulpho - 4 - bromo - anthraquinone with an o-alkyl-aryl-amine in an aqueous medium in presence of a catalyst comprising finely divided copper and cuprous oxide.  The catalyst may be prepared by reducing copper acetate with glucose and sodium hydroxide in ammoniacal aqueous solution.  A small amount of an alkaline substance such as sodium bicarbonate may be present.  An example describes the preparation of the 4-o-toluidino body.
Patent GB-1107657-A (GB)
Title: Polyester film support with low aldehyde content
IPC: C08K5/52
Filed: 1965-04-27
Abstract: A photographic film support comprises a biaxially oriented and heat treated sheet of thickness between 0.005 and 0.015 inch of a linear polyester of a dicarboxylic acid and a glycol which contains sufficient of an organic phosphorus compound to reduce the content of acetaldehyde to below 7 p.p.m. per 0.001 inch of thickness measured at the time of the original formation of the sheet.  The sheet may contain 5-150 p.p.m. by weight of elemental phosphorus. Suitable phosphorus compounds are esters of phosphoric and phosphorous acids, particularly esters of polyhydroxy compounds, and especially cyclic phosphite esters of polyhydroxy compounds.  Materials specified are those derived from pentaerythritol and bisphenol A and triphenyl phosphite and from neopentyl glycol, 1:4-cyclohexanedimethanol and triphenyl phosphite, and the phosphites of trimethylolethane, trimethylolpropane and trimethylolbutane, tridecyl phosphite, tri (2-ethylhexyl) phosphate, distearyl and diphenyl pentaerythritol diphosphites, and tris (2:2:4 - trimethylpentyl) phosphate. General formulae are given for monomeric and polymeric cyclic phosphites which may be used.  In examples films of polyethylene terephthalate are prepared containing 0.1 weight per cent of tridecyl phosphite, tri (2-ethylhexyl) phosphate, and di-(neopentyl glycol) 1:4-cyclohexanedimethanol diphosphite. Other suitable phosphorus compounds are said to be ethyl dihydrogen phosphate, triphenyl phosphite and tris (2:2:4-trimethylpentyl) phosphate.  The polyester may be derived also from e.g. 2:6-naphthalene dicarboxylic acid and/or from e.g. a 3:1 mixture of 1:4-cyclohexanedimethanol and ethylene glycol, as acid and glycol respectively.
Patent GB-279172-A (GB)
Title: Improvements in loaded conductors
IPC: H01B11/14
Filed: 1926-07-22
Abstract: 279,172. McCann, P. S., and Western Electric Co., Inc. July 22, 1926. Loaded cables; cables, processes for making.- In the manufacture of continuously loaded conductors, the loading material is placed directly on the conductor before the final heat treatment and is subjected to a loosening process during or after the heat treatment. In one method of carrying out the invention, the appaxatus described in Specification 207,151, [Class 72, Iron &c.], which is used for carrying the conductor through a furnace for heat treatment, is modified so that the conductor is stretched either during its passage through the furnace or afterwards. The methods described in Specifications 277,423 and 277,424 may be used for loosening the loading material.
Patent GB-755215-A (GB)
Title: Solutions and swollen masses of polymerised trifluorochlorethylene
IPC: C08K5/07
Filed: 1953-07-02
Abstract: Compositions of polytrifluorochlorethylene comprise as a solvent, swelling agent, diluent or plasticizer an oxygen-containing menthane derivative belonging to the terpene or camphor class and optionally another solvent or swelling agent for the polymer.  Specified menthane derivatives are terpin, terpineol, pinole hydrate, borneol, perillaldehyde, cuminaldehyde, menthone, piperitone, pulegone, carvone, camphor, camphenilone, fenchone, thujone, verbenone, cineol, pinole, and menthyl, terpinyl, or bornyl esters.  Other agents mentioned are 1 : 2 : 2-trifluoro - 1 : 1 : 3 : 3 : 3 - pentachloropropane, 2 : 2-difluoro - 1 : 3 : 3 : 3 - tetrachloropropane, 1 : 2 : 3 - trifluoro - 1 : 1 : 2 : 3 : 3 - pentachloropropane, 4 - chloro - 1 : 3 - xylene, 2 - chloro1 : 4 - xylene, 4 - chlorotoluene, 2 : 5 - dichlorotoluene, 2 : 6, or 3 : 4 -, or 3 : 5 - dichlorotoluene, 2 : 4 - dichlorobenzal chloride, 2 : 4 : 5 - trichlorotoluene, chlorocymene, 2-methyl - pyridine, 2 : 8 - dimethyl - quinoline, 2 : 4 : 6 - trimethyl - pyridine, 2 : 5 : 6 : 8 - tetramethyl - quinoline, 1 : 1 : 2 : 2 - tetrafluoro-3 : 3 : 4 : 4 - tetrachlorocyclobutane, cyclohexanone, mesityl oxide, acetophenone, dimethyl - acetophenone, chlorodi - isopropyl ketone o  - chloracetophenone, o  - chloropropiophenone, 2 - methyl - heptene - (2) - one - (6), phorone, methyl-cyclohexanone, pseudocumene, mesitylene, t-butylbenzene, para-t-butyltoluene, beta-methylnaphthalene, alpha, beta-dimethylnaphthalene, amylbiphenyl, alpha and paramethyl styrenes, para-cymene, distyrene, diamyldiphenyl, para-di-t-butyl benzene, mixtures of alkylated benzenes obtained from coal tar and petroleum distillates, and mixtures.  The compositions are used for the manufacture of foils, bands, tubes, or threads.
Patent GB-146462-A (GB)
Title: Improvements in carburetters for internal combustion engines
IPC: F02M19/08
Filed: 1920-07-03
Abstract: 146,462. Santoux, J. July 7, 1919, [Convention date]. Spray carburettors. - The passage around the fuel nozzle g of a carburettor is varied with the adjustment of the throttle p, by means of two hinged plates v, which are connected to the throttle lever l by means of links b, d, h. Small openings o at the top of each plate together form an orifice for mixture at starting and slow running when the plates are in the closed position as shown. The Specification as open to inspection under Sect. 91 (3) (a) states also that the plates could be drawn apart by suction, or by cams linked up with the throttle. By moving the hinges of the plates air could be admitted between the plates and the walls of the carburettor chamber, when the plates open from the position shown. This subject-matter does not appear in the Specification as accepted.
Patent GB-281193-A (GB)
Title: Improved apparatus for drawing straight or curved lines
IPC: B43L11/04
Filed: 1927-07-12
Abstract: 281,193. Dearing, C. H. July 12, 1927. Ellipsographs. - An instrument for describing ellipses &c. consists of a parallelogram with relatively movable arms and an additional adjustable arm carrying a pencil &c. at one extremity. The parallelogram consists of a fixed arm c<1>, an arm d parallel thereto, and two arms e, e<1> pivoted on fixed centres e<2> to the arm d and on adjustable centres e<3> to the arm c<1>. The arms e, e<1> pass through sleeves f so that their lengths can be varied. The pencil &c. is carried by an arm k slidable in a sleeve k' and mounted on a gear wheel h which is mounted on the arm d and gears with a wheel g mounted on a shaft secured to the arm e. The arm e<1> is integral with two jointed legs c having pointed ends which are pressed into the paper &c. As the parallelogram arms d, e, e<1> are turned about the pivots e<3> the pencil describes an ellipse, the eccentricity of which depends on the position of the arm within the sleeve k<1>. In one limiting position a circle is described when the pencil is on the axis of the wheel h and in the other limiting position a straight line is drawn when the effective length of the arm k is equal to that of the arms e, e<1>.
Patent GB-1173136-A (GB)
Title: Aircraft
Inventor: COOPER JOHN ROLAND
IPC: B64C3/40
Filed: 1966-04-27
Abstract: 1,173,136. Multi-purpose aircraft. J. R. COOPER. 27 April, 1967 [27 April, 1966], No. 18567/66. Heading B7W. An aircraft is capable of performing a number of roles (e.g. reconnaissance, low level strike, advanced trainer, flight test duties &c.) in turn by replacing a mission module, 26 accommodating the crew and certain equipment, with a module containing different equipment appropriate to the new role. The module 26 may be of fibre-glass having transparent panels 28, 29 which register with corresponding transparent panels as at 30, in the aircraft, of which the nose 12 may be hinged (as shown) to allow the modules to be inserted. The aircraft may be supersonic (for speeds over Mach 2À5) and may have an aluminium structure with an outer coating of insulating plastics, its inner surface being cooled by a jacket of fuel flowing from the tanks to the engines 20, 22, the outer extremities of the aircraft (shown hatched) being of heat resistant material (e.g. steel or titanium). A limited amount of variation in the geometry of the aircraft may be provided by bifurcating the fuselage into two portions 14, 16, pivotable at 24, each carrying an engine 20, 22, a jet pipe and a wing; the two portions pivoting apart for take off and landing.
Patent GB-371680-A (GB)
Title: Improvements in or relating to the manufacture of shaving soap
IPC: C11D13/18
Filed: 1931-06-27
Abstract: <PICT:0371680/III/1> <PICT:0371680/III/2> <PICT:0371680/III/3> Shaving soap sticks having longitudinal channels, e.g. m, k, m<1>, k<1> of Figs. 4 and 5 respectively, are formed by an extrusion press provided with moulding mandrels h arranged annularly in and projecting beyond the mouthpiece orifice d, and with a central finger i extending short of the orifice d. Preferably the mandrels and finger are in one with an iron star f coned on its outer surface to the conicity of the pressing cone c, conical rods g connecting the mandrels with the arms of the star. Variously shaped and arranged mandrels and star-pieces may be used to produce variously shaped soap-sticks.
Patent GB-766183-A (GB)
Title: Improvements in or relating to the induction systems of internal combustion engines
IPC: F02M29/02
Filed: 1952-07-23
Abstract: 766,183. Treating charge. PICKLES, W. Oct. 23, 1953 [July 23, 1952], No. 18636/52. Class 7 (2) [Also in Group XXVI] A centrifugal charge-mixing fan 1 in a casing 2 interposed in an engine induction system has vanes 7 some or all of which are perforated and is driven by an electric motor 3 which may be energized manually, as by switching on of the engine ignition, or automatically. The fan, which comprises the vanes 7 rigid with lower and upper plates 4, 5 draws mixture through an inlet 24 and delivers to a radial or tangential outlet 19 via an annular recess 17 which may be masked off from the fan for a distance upstream of the outlet, to provide dual mixture streams thereto, by a corrugated or other annular shield of perforate or imperforate material and projecting into the outlet. There may be a plurality of outlets, individually radial, tangential &c. An annular wick 21 projecting into the outlet 19 at one end collects and disperses unvaporized fuel and, together with a felt &c. washer 11, spring- separated washers 12 and a throw-off cane 15, prevents such fuel entering the motor 3. The vanes 7 may be individually straight or curved, of perforate or imperforate material and wholly or partly corrugated, and may be tangentially or radially arranged. They may be disposed outwardly of inner vanes or cones &c. of wire or gauze. The plate 4 may have vanes on its underside and an upturned rim. The fan speed may be varied as by controlling the motor supply in accordance with engine temperature and may be arranged to approximately synchronize with the natural mixture flow speed at high engine suctions. The fan may be operated prior to engine starting.