baber/WOPTO huggingface dataset:
Patent GB-686172-A (GB)
Title: Improvements in and relating to toy and model locomotives
IPC: A63H19/10
Filed: 1949-06-27
Abstract: 686,172. Toy locomotives. FRY, C. L. July 28, 1950. [June 27, 1949] No. 16956/49. Class 132 (iii). A toy locomotive having a device for emitting puffs of vapour may also have means for periodically emitting sound. In Figs. 1, 2, a simple air pump fitted with a non-return valve is actuated by an eccentric 5 on one of the axles 6 of the locomotive and is connected by a tube to a vapourizing chamber 11 containing an electric heating element 14 surrounding a wick 17 which contacts a vapour-forming medium such as a hydro-carbon oil. The element 14 is connected via a switch 26 to current supply from the track which may be of the 2-rail or third rail type. Puffs of vapour are caused by the charges of air from the pump expelling volatalized liquid from the chamber 11 through a pipe 23 to the chimney 24. Cam driven, crank or solenoid operated means, or a separate electric motor in the locomotive or tender are also specified for actuating the air pump. Sound producing means may comprise a reed operated by the air pump or a second pump. Alternatively there may be provided an electric buzzer of which the circuit is made and broken by cam operated contacts or a commutator device. The vapour and sound emitting means may be controlled by a solenoid so that they are inoperative whenever the energizing current supplied to the track falls below a predetermined value as might occur, for example, when the current is reduced to slow down the locomotive. According to the Provisional Specification, wax may be used as a vapour-forming medium.
Patent GB-238672-A (GB)
Title: Improvements in or relating to deviating cams for interrupting electric circuits
IPC: F02P7/063
Filed: 1924-07-15
Abstract: 238,672. British Lighting & Ignition Co., Ltd., and Hutton, J. C. July 15, 1924. Cams for mechanical interrupters for electric circuits are composed of laminations of non- metallic material compressed and held together by an insulating varnish of the bakelite type. As shown in Figs. 1 and 2, the laminations A, composed of paper fibre, or the like, are are arranged parallel to the direction of rotation of the cam, or may be of paper or fabric and mechanically fastened together by pins B, Fig. 3, or a metal sleeve C and washers D, Fig. 4. In the face cam shown in Figs. 5 and 6 the laminations are composed of a spirally wound insulating strip. In a further modification thin sheets of graphite E are placed between the laminations A for lubricating the cam, the laminations being placed at an angle to the cam axis. The cams are so constructed as to be struck on the edge of the material forming the cam.
Patent GB-429226-A (GB)
Title: Improvements in or relating to sanitary pails
IPC: B65F1/16
Filed: 1934-09-06
Abstract: 429,226. Sanitary bins; hollow-ware. WOODFORD, F. C., 1, Ashdon Road, Harlesden, London. Sept. 6, 1934, No. 17033. [Class 26] [See also Group XVII] In a sanitary bin, a gutter containing a sealing-liquid is formed by an annular member, the lower part 2b of which is bent inwards so as to be horizontal and which is welded or soldered to the bin, the outer wall of the gutter which has a bead 2c being higher than the edge of the pail.
Patent GB-421410-A (GB)
Title: Improved bust support
IPC: A41C3/00
Filed: 1933-06-15
Abstract: 421,410. Brassieres. DAHL, L. B., 3b, Vodroffsvej, Copenhagen. June 15, 1933, No. 17083. [Class 141] A bust support is characterized by the provision of two or more resilient stiffeners arranged vertically or almost vertically from the lower edge of the bust support upwards to just below the nipples of the breasts. The stiffeners 3 are each arranged in a double-ended pocket 4 to facilitate removal. The upper part 6 of the bust support is made of veiling gauze or other light material, and strips 5 are provided to hold the stiffeners 3 inwardly towards the nipples of the breasts.
Patent GB-853365-A (GB)
Title: Improvements in or relating to silicon carbide semiconductor devices
IPC: H01L21/04
Filed: 1959-05-20
Abstract: 853,365. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. May 20, 1959 [May 29, 1958], No. 17139/59. Class 37 A silicon-carbide semi-conductor device has a junction including iron as a significant N-type conductivity impurity. In an example a P-type silicon-carbide single crystal obtained by nucleation and growth from silicon vapour in an aluminium-containing argon atmosphere was used. The crystal was out to about #" diameter and to a thickness of between 0 À01 and 0 À03 inches. The side chosen for the junction was lapped with diamond powder to a symmetrical roughness, cleared in carbon tetrachloride and dilute hydrofluoric acid and laid in a graphite boat with the roughened side uppermost. A one mil thick iron wire was laid on this surface and the boat was placed in a vacuum furnace. The pressure was lowered to 10-4 mm. of mercury and a temp. of 1600 ‹C. maintained for half an hour. The temperature was then raised to 2000 ‹C. for one minute to evaporate excess iron. To avoid silicon carbide decomposition the furnace may be pressured with argon and a piece of silicon vapourised.
Patent GB-389693-A (GB)
Title: Improvements in or relating to the starting of diesel engines
IPC: F01L13/00
Filed: 1932-06-17
Abstract: 389,693. Starting Diesel engines. HEYWOOD, C. F., 4, Rue de l'Eglise Catholique, Montreux, Switzerland. June 17, 1932, No. 17179. Convention date, June 26, 1931. [Classes 7 (iii) and 7 (v).] In a method of starting Diesel engines in which a fluid under pressure is supplied to the working cylinders in turn during the power stroke of the pistons, a supplementary charge of the same and/or another fluid is injected into each cylinder at or subsequent to the moment when the piston therein has almost completed its compression stroke, in order to assist in the ignition of the normal heavy fuel injected into the cylinder. The fluid under pressure may be compressed air, carbon dioxide, or other gas. The supplementary charge may be a small quantity of the same fluid, injected shortly before the end of the compression stroke, or may comprise a small quantity of a light fuel such as benzine or petrol, with or without air or other gas or another fuel, the charge preferably being injected during the working stroke. In order to avoid heavy explosions, the starting fuel or mixture is preferably mixed with heavy oils or carbon dioxide to retard combustion and raise the ignition temperature. The opening of the exhaust valve is preferably delayed by known means during starting. The supplementary charge may be injected or controlled by a supplementary pump or by a rotarydisc distributer valve 1 for the main starting- fluid. The valve 1 is fixed on a conical part 2 of a shaft 3 driven at the cam-shaft speed of the engine. The valve casing comprises a chamber 11 to which compressed gas is admitted by a port 13, and a chamber 14 supplied with fuel through a pipe 16, the chambers being in communication by means of a port 15 in the partition between them. The fuel is led by a channel 17 to a nozzle 18 opening into a bore 19 in the part 2, from which radial bores 20 lead to an annular channel 21 and a port 4 in the valve 1. Ports 7, 9, &c. in the valve seat 6, leading to individual cylinders of the engine, coact with an elongated port 22 in the valve to admit compressed gas from the chamber 15, and radial extensions 7<1>, 9<1>, &c. of the ports 7, 9, &c. coact with the port 4 to admit the supplementary charge from the nozzle 18 and bore 19. In a modification, for injecting a supplementary charge of air without fuel, the chamber 14 is omitted and the valve 1 has an opening 22 and a second opening running over the ports, 7, 9, &c.
Patent GB-146143-A (GB)
Title: Improvements in and relating to photo-mechanical printing
IPC: G03F5/04
Filed: 1920-06-24
Abstract: 146,143. Bassani, L. June 24, 1919, [Convention date]. Photo-mechanical printing-surfaces. - For chromo-lithography and similar printing processes, two printing-surfaces prepared from screen negatives are employed for each colour. In making one of the negatives, the screen is shifted along the lens axis, and in making the second negative the screen is displaced both axially and transversely, the two movements being preferably made simultaneously. In the camera illustrated, the movements of the screen 4 are obtained by micrometer adjusting-screws 6, 7.
Patent GB-200508-A (GB)
Title: A method for obtaining organic super-oxides in a finely divided condition
IPC: C07C409/34
Filed: 1923-07-03
Abstract: Organic peroxides, particularly benzoyl peroxide, are obtained in a state of fine division suitable for bleaching flour and the like by disintegrating them in admixture with water or other liquid, such as salt solutions, benzol, alcohol or a mixture of an organic and an inorganic liquid.  Thus, benzoyl peroxide mixed with water and hardened porcelain balls is rotated in a wooden cask for some hours; the product is a uniform paste capable of bleaching flour to exact predetermined tints.  The grinding may be effected at or below normal temperature.
Patent GB-290853-A (GB)
Title: Improvements in the non skidding properties of pneumatic, cushion and solid tyres
IPC: B60C11/117
Filed: 1927-06-30
Abstract: 290,853. Suddards, T. D. June 30, 1927. Tread projections and surfaces. - A tyre tread is formed with a series of cavities 4 adapted to form closed cups when in engagement with the road, the trailing end of each cavity being provided with a vent 5 so as to prevent compression of the air in the cup, but to produce suction as the cup leaves the road.
Patent GB-1109129-A (GB)
Title: A method for producing pellets containing calcium hydroxide
IPC: B01D53/14
Filed: 1965-07-01
Abstract: Bodies containing a major amount of calcium hydroxide are prepared by slaking calcium oxide with water at a temperature below 200 DEG  C., cooling and purifying the resultant calcium hydroxide, adding a 250% by weight excess of water to form a paste, shaping the paste into rods or small tubes and drying the formed paste to a water content of less than 5% by weight. The drying is preferably performed at a temperature ranging from 700 DEG  to 900 DEG  C. and the paste may be dried to a residual water content of 2% by weight.  Up to 10% by weight of kaolin may be added to the paste after the addition of the excess water but prior to forming. The paste may be extruded on to a conveyer belt which travels through a drying oven, when after drying the rods or tubes are broken up into discrete tubes or bodies.
Patent GB-857988-A (GB)
Title: High bulk paper and processes for manufacture thereof
IPC: D21H17/50
Filed: 1959-05-22
Abstract: 857,988. Paper &c. containing synthetic resins etc.; laminates. SCOTT PAPER CO. May 22, 1959 [June 3, 1958], No. 17472/59. Drawings to Specification. Classes 96 and 140. Paper, paper-board &c. is made from fibres of soft or hard wood, bagasse, bamboo, cotton, e.g. as sulphite, sulphate, semi-chemical, or ground wood pulp, e.g. with some mineral fibres, mixed with a disintegrated aminoplast resin foam, e.g. of urea-, or melamine-formaldehyde, or melamine-urea-thiourea-formaldehyde disintegrated in a beater, Jordan, disc mill, or hydropulper &c. to form, e.g. branched rodlike structures &c., thus entrapping air in the paper &c. to make it absorbent, and thermally insulating. Sizes, wet-strength resins, fillers and coating materials may be included with the paper &c., which may be laminated to thermoplastic film material. Specifications 768,562 and 773,809 are referred to.
Patent GB-174736-A (GB)
Abstract: 174,736. Napper, T., and Davenport, J., (trading as Napper & Davenport). Nov. 2, 1920. Watch stands.-A watch stand comprises t plate 1, mounted in a wooden stand 20 and having an aperture through which the face 3 of a watch 4 can be exposed, and supports 7, 8 at the back to grip the periphery of the watch, the support 8 being movable or resilient. In a modification shown in Fig. 5 the movable support 17 is formed by one end of a length of wire 15, the other end being pivoted in the fixed supports 5. The wire 15 is bent to form a support for the stand.
Patent GB-1118129-A (GB)
Title: Pressure vessels
IPC: F15B1/16
Filed: 1966-04-21
Abstract: 1,118,129. Hydraulic accumulators. J. MERCIER. April 21, 1966, No.17543/66. Heading F1P. In an hydraulic accumulator having a deformable partition 13 disposed in a casing 10 having a central guide member 25 for preventing the partition from rubbing against the casing 10 when extended and preventing sharp folds forming when compressed, the guide member 25 is a closely wound coil spring formed from square or rectangular section material the contacting surfaces of which are grooved or undulated to provide passages for fluid to pass therebetween. Further details of the accumulator are to be found in Specification 930, 104. In an alternative embodiment, Fig. 5 (not shown), the partition is in the form of a sleeve (37) having each end wrapped round the adjacent end of a tubular casing (31) and secured in position by cylindrical walls (39, 40) formed on end members (38) drawn together by tie-rods (41). The end members (38) are provided with recesses (50) for co-axially locating the spring guide member (49) and flanges (46) for connection to a pipe-line to which pressure pulsations are to be damped by flexure of the partition against the pressure of gas introduced to the casing (31) through a passage (34) sealed by a plug (35).
Patent GB-266980-A (GB)
Title: Improvements in or relating to devices for cutting or slicing vegetables or the like
IPC: B26B5/00
Filed: 1926-07-14
Abstract: 266,980. Burnett, A. July 14, 1926. Cutting slices in succession. -A device for slicing vegetables or the like, of the kind comprising a handle or stock and a knife blade spaced from a guide surface against which the vegetable is pressed, is characterized by the provision of an angle sectioned guide member secured to the stock or handle and a blade or cutter formed integrally with or secured to the said guide, the cutting-edge being spaced from one flange of the angle guide. The device is particularly adapted to slice kidney beans. As shown in Fig. 2, the stock 1 is grooved at 2 to receive the fingers and at 3 to receive the thumb. The central web 4b of the guide 4 rests on the stock 1 and the flange 4a is slotted at 5 to accommodate the cutter 6 which may be a double edged safety razor blade. The blade 6 is secured to the stock by a plate 7, reduced in width at its upper end to enter the slot 5, and a bolt and wing-nut 8. The edge 5<a> is curved or bent towards the cutter 6 to deflect the slices rearwardly. In a modifcation, the plate 7 is extended upwardly into the slot 5 in close proximity to the cutter, one edge of the extension being bevelled to deflect the slices rearwardly. In another modification, the blade is laterally adjustable to regulate the slice thickness. To effect this, the blade is held between a clamping-plate and a leaf spring which are threaded on the securing-bolt. In a further modification, the cutting-edge is formed by cutting a slot in the flange 4a and bending out and sharpening one edge. The detachable blades may be set at a slight angle to the flange 4a and, if they are provided with an elongated slot, they may be pressed down out of the cutting position when not in use.
Patent GB-485964-A (GB)
Title: Manufacture of indigoid vat dyestuffs
IPC: C09B7/10
Filed: 1937-06-24
Abstract: Unsymmetrical thioindigoid dyestuffs are prepared by condensing a 4 : 7-dialkyl-6-halogen-3-oxythionaphthene or an active 2-derivative thereof with a 3-oxythionaphthene or an active 2-derivative thereof not having two alkyl groups in the 4 : 7-positions and a halogen in the 6-position.  In examples: 4 : 7-dimethyl-6-chlor-3-oxythionaphthene is condensed with 4-methyl-6-chlor-3-oxythionaphthene - 2 - p - dimethylaminoanil, and the dyestuff used to dye cotton fast rose tints from a hydrosulphite vat.  The use of 4 : 7-dimethyl-6-brom-3-oxythionaphthene is mentioned.  The properties of dyestuffs prepared by condensing 4 : 7 - dimethyl - 6 - chlor - 3 - oxythionaphthene with the following components are tabulated: 6-chlor-3-oxythionaphthene, 3-oxythionaphthene, 5 - chlor - 7 - methyl - 3 - oxythionaphthene, 4 : 6-dichlor-5 : 7-dimethyl-3-oxythionaphthene, 5 : 7 - dichlor - 3 - oxythionaphthene, 4 : 7-dimethyl - 5 - chlor - 3 - oxythionaphthene, 4 : 6-dimethyl - 5 : 7 - dichlor - 3 - oxythionaphthene, 2 : 1 - naphththioindoxyl and 1 - chlor - 2 : 3-naphththioindoxyl.  The dyestuffs are suitable for dyeing and printing regenerated cellulose. 4 : 7 - Dimethyl-6-chlor-3-oxythionaphthene.-2 : 5-Dimethyl-3-chlor-1-benzenesulphochloride, prepared by chlorination of the parent sulphochloride is reduced and condensed with chloracetic acid.  The latter is subjected to ring closure by treatment with phosphorustrichloride and aluminium chloride in tetrachlorethane.  4 : 6 - Dichlor-5 : 7-dimethyl-3-oxythionaphthene.-1 - Chlor - 2 : 4 - dimethylbenzene - 5-sulphochloride, prepared from 1 - chlor - 2 : 4-dimethylbenzene and chlorsulphonic acid, is chlorinated and reduced to the mercaptan.  By condensing with chloracetic acid and ring closure, the 4 : 6-dichlor-5 : 7-dimethyl-3-oxythionaphthene is obtained. Specification 467,447 is referred to.
Patent GB-1344761-A (GB)
Title: Method of treating sio2-dust
IPC: B01J2/00
Filed: 1972-04-17
Abstract: 1344761 Treating silica dust ELKEMSPIGERVERKET AS 17 April 1972 [26 April 1971] 17622/72 Heading C1A Nodules comprising silica dust and water and suitable for packing and transport are prepared by mechanically agitating silica dust obtained for example from waste gases from furnaces producing metallic silicon or silicon containing alloys in the presence of water to form a pasty suspension and continuing the agitation whilst adding more dust to produce the nodules.
Patent GB-1422452-A (GB)
Title: Formed alunina bodies for catalytic uses
IPC: C01F7/025
Filed: 1973-04-12
Abstract: 1422452 Alumina bodies NORTON CO 12 April 1973 [24 May 1972 16 Jan 1973] 17678/73 Heading C1A Alumina bodies having a total porosity of > 0À9 c.c.s/g., > 0À5 c.c.s/g. of pores > 100 , > 0À35 c.c.s/g. of pores > 350  and > 0À3 c.c.s/g. of pores > 1000  (exclusive of pores < 44  and those produced by burn-out material) and a surface area of > 10 m.<SP>2</SP>/g. consists of at least 99% alumina predominantly as boehmite, gamma, delta, theta or alpha alumina. They may be made from heat-treated microcrystalline boehmite and microcrystalline boehmite and a monobasic acid (formic preferably or hydrochloric, nitric, acetic or propanoic) mixed in any order. The mixture, with added water, may be formed to shape, dried and heated to 250-1200 C. Burn-out material, e.g. cellulose or p-dichlorobenzene and soluble compounds of metals may be added.
Patent GB-937804-A (GB)
Title: Improvements in motor speed control circuits
IPC: H02P7/30
Filed: 1962-05-09
Abstract: 937,804. Control of D.C. motors. GENERAL ELECTRIC CO. Ltd. May 9, 1962 [May 18, 1961], No. 17751/62. Class 38 (3). [Also in Groups XXXV and XL (c)] The speed of a D.C. shunt motor, supplied from the unsmoothed output of bridge rectifiers 127, is kept constant by arranging for a speed error signal to control the instant of triggering a silicon controlled rectifier 131 in the circuit of armature 120. The motor field 121 is also supplied from the rectifiers 127, and at the end of each half wave the inductance of the field and the arrangement of rectifiers 128 and 132 causes reverse polarity to be applied to controlled rectifier 131 so rendering it non-conducting. As shown, the error signal is developed across a winding M1-3 of a magnetic amplifier by a bridge circuit comprising reference voltage source 139, 141, resistors 142, 143, and a voltage corresponding to armature back E.M.F. derived by subtracting the voltage across series resistor 135 (proportional to armature IR drop) from a portion of armature terminal voltage taken from potential divider 136, 137. The winding M1-3 is linked with windings M1-1 and M1-2 in series with the primary T1-1 of a saturable transformer, the arrangement being that the magnetic amplifier core will saturate, and so cause a current pulse through T1-1, during every half-cycle of A.C. supply 122 at a point on the cycle determined by the magnitude and direction of the error signal. The transformer has two, oppositely wound, secondaries T1-2, T1-3 so that the triggering pulse to rectifier 131 is positive for every half-cycle. In an alternative arrangement (Fig. 2, not shown) triggering is exacted by a known type of pulse generator which includes a transistor in series with a saturable transformer, the transistor being rendered conducting at the appropriate instant by the error signal. In this case the voltage drop across a resistor in series with the motor field is used as a reference. The circuit includes means for resetting the saturable transformer by passing a reverse current through it during the transistor " off " periods.
Patent GB-476062-A (GB)
Title: Improvements in and relating to joint and coupling devices for pipes and the like
IPC: F16L21/00
Filed: 1936-06-26
Abstract: 476,062. Pipe joints. BRAY & CO., Ltd., G., and BRAY, G. June 26, 1936, No. 17753. [Class 99 (i)] A rubber connector B has a reinforcing flexible shield T and an outer sleeve, the parts A, C of which can be screwed together to cause the ends of the shield to contract, the flanges A<1>, C<2> engaging the tapered ends of the shield which has slots T<1> extending from each end.
Patent GB-595997-A (GB)
Title: Improvements in, and relating to, welted footwear
IPC: A43B9/04
Filed: 1945-07-13
Abstract: 595,997. Welted footwear. LONGLAND, O. J. July 13, 1945, No..17894. [Class 17 (ii)] A hand or machine sewn welted boot or shoe having a leather welt a scoured or skived on the grain face at b for approximately half the width; has a coating of rubber cement or other waterproof material applied to such edge to render the inseam watertight.
Patent GB-571304-A (GB)
Title: Improvements in submerged resistor induction furnaces
IPC: H05B6/20
Filed: 1943-10-29
Abstract: 571,304. Electric induction furnaces. TAMA, M. Oct. 29, 1943, No. 17895. Convention date, Oct. 21, 1942. [Class 39 (iii)] An induction furnace suitable for light metals and alloys comprises a hearth 2 connected by straight parallel melting channels 14 to a chamber 17 sufficiently large to contain slag and impurities over a period of operation. The closed circuit 2, 14, 17 forms the secondary of a transformer having a primary winding 8 surrounding an iron core 10 the magnetic circuit of which is closed by elements on either side of the furnace. The channels 14 are connected at their ends by grooves 15, 16 into which they open abruptly, thereby preventing the accumulation of obstructing compounds in the channels. Cleaning plugs 18 may be provided.
Patent GB-305011-A (GB)
Title: Improvements in or relating to slide clamps for strap buckles and the like
IPC: A44B11/04
Filed: 1928-06-20
Abstract: 305,011. Wadsworth Watch Case Co. Jan. 28, 1928, [Convention date]. Buckles.-A buckle comprises in combination a frame 1, Fig. 7, and a clamp 2, Fig. 10, adapted to slide therein and having a. plurality of crossbars 31, 32, 33, one of said bars 33 having a lip 35 formed thereon, and two of said bars being connected by an arch 33 to stiffen the slide and to. prevent the incorrect threading through the buckle of a strap to be fastened. The frame 1 and clamp 2 are assembled as shown in section in Fig. 9. One end of a strap 37 to be fastened is secured to a bar 3 detachably sprung between the sides 15, 16 of the frame, and the other end is passed, as shown, under the cross-bar 32 of the slide 2 and the. end bar 39 of the frame 1, and over the lip 35 and arch 33<1>, and below the other end bar 41 of the frame. A sequence of machining operations by which the frame 1 is formed to the shape shown from a metal blank is described.