baber/WOPTO huggingface dataset:
Patent GB-1519223-A (GB)
Title: Silencer for flowing gases and gas mixtures particularly for the exhaust gas stream of jet engines
IPC: F01N13/16
Filed: 1975-07-21
Abstract: 1519223 Exhaust gas silencers GRANGES NYBY AB 21 July 1975 [20 Aug 1974] 30506/75 Heading F1B [Also in Division C7] A silencer, especially for a jet engine, comprises a duct having an inner casing, with which the gas stream comes in contact, and which has a waveform cross-section and is made of stabilized chromium steel. The steel has the following composition: Carbon 0 to 0À3% Nitrogen 0 to 0À3% Chromium 17 to 22% Nickel 0 to 0À5% Copper 0 to 0À2% Silicon 0À3 to 0À6% Manganese 0À3 to 0À6% Molybdenum 1 to 4% and a content of carbon binding stabilizing elements such as titanium, niobium, tantalum, aluminium, zirconium, the titanium content being not less than 0À5% when used above and preferably 0À6 to 0À7%. Sheet material having the above composition is formed into frusto-conical sections 2 each having a longitudinal seam weld. An elbow is formed from sections 3 which are welded together at their ends. The joints between the sections 2 and the end sections of the elbow 5 allow sliding movement to accommodate expansion. The tube has a sinusoidal waveform cross-section, the ratio of wave amplitude to wavelength being 1:5. The amplitude increases continuously toward the outlet end of the silencer and the distance of the wave crests from the silencer axis remains constant or decreases so that the free cross-sectional area increases continuously towards the outlet.
Patent GB-912078-A (GB)
Title: Improvements in and relating to stacking trucks
IPC: B66F9/075
Filed: 1959-09-08
Abstract: 912,078. Hydraulic lifting jacks; lift trucks. HAUSER, R., BENGEL, F., SAUTER, A., and SAUTER, U., [trading as NACHFOLGER A. I. [Firm of]]. Sept. 8, 1959 [Sept. 20, 1958], No. 30587/59. Class 78 (3). The chassis of a side loading masted lift truck is provided with projections 8, 9, which, during loading and unloading operations, are lowered Into engagement with the ground by hydraulic jacks 16 incorporated in the spring suspension stinu of the road wheels 6, 7. As shown in Fig. 2, the jacks operate between the chassis 1 and the end 14 of a leaf-spring 11, but in a modification (Fig. 3) they act between a coilspring 21 and a wheel suspension arm 18 pivoted to the chassis at 19.
Patent GB-1456697-A (GB)
Title: Boilers
IPC: F24H1/30
Filed: 1974-07-11
Abstract: 1456697 Water-heating boilers P FASCIONE 11 July 1974 [11 July 1973] 30827/74 Heading F4A A gas or oil fired water heating boiler, of the type in which a burner 6 discharges into a combustion chamber about which are arranged water chambers 3a, 13 and combustion gas ducts 9, is provided with a base element 2 which has a water space defined between walls 24, 26 and in communication with the chambers 3a, 13 and, via an opening 27, with a water compartment of an expansion chamber 4; a movable portion, in the form of a membrane 28, being provided to separate the water compartment from a further compartment that can receive gas at a predetermined pressure. The boiler is formed from a number of modular units: the base element 2, a front cover 1 provided with a burner opening and intermediate units 3 which define water chambers 3a, 13, ducts 9, and outlet passages for the combustion gases. The ducts 9 open into the combustion chamber near the base element and deliver gases back to the chamber via injection passages 22 orientated towards the base element. As shown in cross-section in Fig. 2 each has channels 12 linking the water chambers 3a, 13 between adjacent ducts 9 and these chambers are connected to cold water source and hot water supply openings 10, 11. Two combustion gas outlet ports 14, 15 are linked by respective outlet passages 17, 18 and openings 21 to the ducts 9 and the passages 17, 18 are defined between spiral ribs 19, 20 and circular rib 16. The front cover 1 has a spiral passage 36 for burner inlet mixture having vanes 37 to impart rotation to the mixture. The cover is hollow and linked to the water chambers, and its inner wall diverges towards the interior of the boiler at an angle # of from 30 degrees to 110 degrees. Combustion gases can be recirculated (by means not shown) to the inlet passage 36.
Patent GB-280938-A (GB)
Title: Improvements in or relating to hydraulic piping
IPC: F16L1/16
Filed: 1927-11-17
Abstract: 280,938. Boucherot, P., and Claude, G. Nov. 18, 1926, [Convention date]. Solar and natural heat, utilizing.- A submarine pipe for drawing cold water from a depth below the surface of the sea for the purpose of cooling settlements in hot countries, or for producing power with the air of hot water from the surface, is constructed so that the weight of the pipe at all points is substantially equal to the weight of the water displaced and its cross-section is such that it gives maximum resistance to sagging. For this purpose the pipe may consist of wooden staves P, Fig. 3, held together by hoops Q of T, I or U section, or of sheet steel rings R of rectangular section welded together or filled with a stuffing S of impregnated wood. In this form the steel annuli may be wholly closed and contain compressed air or wood, the inner and outer walls of the annuli being curved inwards as shown in Fig. 6 or outwards. In another form sheet steel rings are welded together and strengthened by girders on the outside. This pipe may be balanced in the water by floats consisting of metal vessels containing air or other gas. The top end Of the pipe is flexible and consists of a steel tube composed of hollow annuli Z united by cylindrical sections U. The tube A is supported either as shown in Fig. 1. by cables F, H securing the power house B to anchors or cement blocks G, K, or if the pipe is nearly horizontal by a series of buoys and cables secured by anchors or concrete blocks. In this case the upper end of the pipe is preferably constituted by a tunnel opening into the sea at a depth at which surface movements are not felt.
Patent GB-683732-A (GB)
Title: Improvements in or relating to wireless aerials
IPC: H01Q9/28
Filed: 1950-12-20
Abstract: 683,732. Aerials. RADIO - INDUSTRIE SOC. ANON. Dec. 20, 1950 [Jan. 18, 1950], No. 31035/50. Class 40 (vii). An aerial of the kind comprising at least a pair of radiators energized in phase opposition consists of a rigid conducting mast to which is attached one conductor of a feeder pair, a rigid conductive coaxial sleeve to which is attached the other conductor of the feeder, the sleeve being shorted at one of its ends to the mast and being a quarter of the operating wavelength long or an odd multiple thereof, a first half-wave radiator fixed to the free edge of the sleeve and a second half-wave radiator fixed to the mast along a line neighbouring the edge of the sleeve, both of said radiators being of the same overall revolution shape about the mast axis and diverging in opposite directions so that their remote ends are each a quarter wavelength, or an odd multiple thereof, distant from the mast. and joined to the mast by conductive supports, Figs. 1 and 2 show respectively the energization of the upper and lower radiators 5 of the complete aerial supported by mast 1 and fed through sleeve 2 by coaxial line 3, 4. A complete aerial having differently-shaped radiators 9, 10 is shown in Fig. 4. A number of aerial units may be stacked one above the other with a narrow gap between the end conductive supports of each, in which case only one sleeve need be energized the other aerial units being coupled by the quarter wavelength line formed by the gaps. The feeder may be placed inside the mast.
Patent GB-485100-A (GB)
Title: Improvements in or relating to dry contact metal rectifiers
IPC: H01L25/07
Filed: 1936-11-13
Abstract: 485,100. Asymmetrically conducting resistances. SUDDEUTSCHE APPARATEFABRIK GES. Nov. 13, 1936, No. 31042. Convention date, Dec. 3, 1935. [Class 37] A dry rectifier comprises a pair of metal layers a, c, separated by a semi-conductive layer b. Between the layer c and a contact plate d two flexible metal foils e, f preferably of aluminium are placed, the whole being covered with a protective layer of lacquer. By this arrangement a degree of flexibility to the element is provided.
Patent GB-467544-A (GB)
Title: Apparatus for the sterilization of water and other liquids
IPC: A61L2/238
Filed: 1936-11-13
Abstract: 467,544. Electrolytic sterilizing- apparatus ; batteries. LAKHOVSKY, G. Nov. 13, 1936, Nos. 31060 and 31061. Convention dates, Dec. 5, 1935 and Oct. 19, 1936. [Classes 41 and 53] Electrolytic sterilizing apparatus comprises a wet battery the positive (copper) element 11 of which encloses the negative (zinc) element 12 and the electrolyte 16 (slightly salted or acidulated water), and two electrodes 18 and 20, 18 being of silver or other metal capable of exerting a bactericidal action and 20 of rustless steel. The electrodes may be inserted into a bottle to sterilize the contents thereof, an insulating sleeve 22 surrounding the extension 19 of the cup 11 fitting into the bottle neck. The apparatus may be carried about in a double-walled container between the two walls of which electrolyte is stored. The elements 11, 12, may be spherical in shape, the inner element being hollow or solid, or the element 11 may be a broad shallow disc and the element 12 a flat apertured plate.
Patent GB-983829-A (GB)
Title: Coating composition containing wax, thermoplastic petroleum resin and ethylene-vinyl acetate copolymer
Inventor: ZAAYENGA RALPH
IPC: C09D191/08
Filed: 1963-08-07
Abstract: A wax composition comprises a major proportion of paraffin wax and minor proportions of a petroleum resin and a copolymer of ethylene and vinyl acetate, said resin being prepared by catalytically reacting a monomeric mixture of dienes and reactive olefins having an average molecular weight of about 90 to produce a hard solid resin. Proportions of 51-90% of paraffin wax, 5-24% petroleun resin and 5-25% copolymer are specified.  The compositions of the copolymer may be from 5-25 moles of ethylene per mole of vinyl acetate.  The composition may also include 0.0015-2% of anti-oxidants.ALSO:A wax composition comprises a major proportion of paraffin wax and minor proportions of a petroleum resin and a copolymer of ethylene and vinyl acetate, said resin being prepared by catalytically reacting a monomeric mixture of dienes and reactive olefins having an average molecular weight of about 90 to produce a hard solid resin. Proportions of 51-90% of paraffin wax, 5-24% petroleum resin and 5-25% copolymer are specified.  The compositions of the copolymer may be from 5-25 mols. of ethylene per mol. of vinyl acetate. The composition may also include 0.0015-2% of anti-oxidants.ALSO:Cardboard milk containers, paper drinking cups, and metal fluid containers are coated by dipping in or spraying with a molten wax composition comprising a major proportion of paraffin wax and minor proportions of a petroleum resin and a copolymer of ethylene and vinyl acetate, said resin being prepared by catalytically reacting a monomeric mixture of dienes and reactive olefins having an average molecular weight of about 90 to produce a hard solid resin.  Proportions of 51-90% of paraffin wax, 5-24% petroleum resin and 5-25% copolymer are specified.  The composition of the copolymer may be from 5-25 moles of ethylene per mole of vinyl acetate.  The composition may also include 0,0015-2% of anti-oxidants as well as certain amides which reduce the frictional drag of the coated milk containers.
Patent GB-343114-A (GB)
Title: Improvements in or relating to hot water storage apparatus for steam boiler systems
IPC: F01K3/00
Filed: 1929-10-15
Abstract: 343,114. Heating feedwater. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl Ufer, Berlin.) Oct. 15, 1929, No. 31279. Convention date, Oct. 15, 1928. [Classes 64 (i) and 123 (ii).] Hot water storage apparatus comprises a single vessel a with internal heating surfaces b, an outlet d at the upper part of the vessel from which heated feedwater is directly withdrawn, an inlet c at the lower part for a constant supply of water at normal temperature or initially preheated and means for supplying heating steam regulated with the boiler pressure so that the supply increases as the load diminishes and vice versa. During intermediate loads a varying proportion of the heating coil or surfaces may become filled with condensate ; for the mean load the two upper turns e, f of the coil may for example alone be in operation. In another construction the heating steam surrounds vertical water-tubes and the heating may be effected in several stages each provided with a steam inlet. Additional preheaters f, g, Fig. 3, may be provided connected to the upper part of the storage heater, so that normally the feed is preheated before entering the latter. Specifications 221,500 and 231,528, [Class 123 (ii), Steam generators], are referred to.
Patent GB-356009-A (GB)
IPC: E21C37/24
Filed: 1930-10-18
Abstract: 356,009. Percussive tools. INGERSOLL-RAND CO., 15, Exchange Place, Jersey City, New Jersey, U.S.A. Oct. 18, 1930, No. 31319. Convention date, Dec. 12, 1929. [Class 124.] The casing of a pneumatic hammering tool particularly intended for use in coal-cutting or like operations, is formed with flat chisel-like edges b at its front end, designed to enter the work and facilitate prising off parts thereof. The front end is screwed on the barrel and held by a pinch bolt W. Cross pins R held by an outside ring T receive the impact of a collar L on the tool shank in its forward movement.
Patent GB-424518-A (GB)
Title: An arrangement for the transmission of telegraphic signals by a picture method
IPC: H04N5/04
Filed: 1933-11-10
Abstract: 424,518. Copying telegraphy. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Nov. 10, 1933, No. 31427. Convention date, Jan. 12. [Class 40 (iii)] A copying-telegraph, in which signals representing an image of a character are transmitted by actuating an appropriate key, is synchronized by driving the transmitter and receiver from a common alternating- current power-distribution network, and the duration of keying or recording one line of the image is equal to, or is an exact submultiple of, the period of the mains supply.
Patent GB-1152986-A (GB)
Title: Improvements in or relating to Coke Ovens
IPC: C10B43/04
Filed: 1966-07-13
Abstract: 1,152,986. Cleaning coke ovens. SIMONCARVES Ltd. 13 July, 1966 [24 July, 1965], No. 31465/66. Heading F2N. An apparatus for cleaning door frames of coke oven chambers includes a grating support 11 attached to a carriage 18, movable by an hydraulic cylinder 10 in the direction of the oven chamber, and reciprocated vertically in relation to the carriage by an hydraulic cylinder 22 and carrying gratings 13, 23 and 24 and scrapers 14 for cleaning the surfaces of the door frame. The gratings have a vertical mesh pitch less than the amplitude of the vertical movement of the support 11. Stops 30 are attached to the carriage and locate against the surfaces of the door frame, and guides 44 are carried by the support 11 to co-operate with latch hooks on the door frame to laterally locate the gratings. Pressure is applied to the gratings by hydraulic cylinders 12, 19.
Patent GB-260438-A (GB)
Title: Improvements in or relating to electric motors for driving self acting mules and working machines requiring similar changes of the driving moment
IPC: H02K27/14
Filed: 1925-12-14
Abstract: 260,438. Siemens - Schuckertwerke Ges., and Kozisek, J. Dec. 14, 1925. Mules. - In order to secure the desirable slip in the motor at the commencement of the outward run, the mule is driven by a three-phase series commutator motor with an intermediate transformer, the transformer saturation being such that the drop in speed from noload to full-load is not greater than 30 per cent. The arrangement may be such that the speed load curve is approximately symmetrical above and below the synchronous speed line n8, Fig. 1, or so that the motor runs hypersynchronously at no-load and synchronously at full-load as shown in Fig. 2. The speed between no-load and full-load may also be controlled by brush displacement. Specification 208,544 is referred to.
Patent GB-919177-A (GB)
Title: Substituted ethylenediamines
Inventor: MORLEY JOHN SELWYN
Filed: 1960-09-14
Abstract: The invention comprises substituted ethylenediamines of the formula R1R2N.CHR3.CHR4.NR5R6 (wherein R1 is a tertiary alkyl radical, R2, R3, R4 and R5 are hydrogen atoms or alkyl radicals of at most 4 carbon atoms, and R6 is an alkyl or alkenyl radical of at most 10 carbon atoms) but excludes N,N1-di-(t-butyl)-ethylenediamine; and their acid-addition salts; and their preparation by (1) reacting a reactive ester of an appropriately substituted amino-alcohol with an appropriately substituted amine; or (2) alkylating with a reactive ester of a C1-4 alkanol an appropriately substituted ethylenediamine containing at least one hydrogen atom on a nitrogen atom; or (3) reductively alkylating with an aliphatic aldehyde containing at most 4 carbon atoms and a reducing agent an ethylene diamine as specified under (2); or (4) reacting a reactive ester of an appropriate dihydroxyalkane with an appropriate primary or secondary amine, to give a symmetrically substituted ethylenediamine.  Detailed examples are given, and a list of suitable salt-forming inorganic and organic acids is provided.  2-Tertiary-butylaminoethyl chloride hydrochloride is prepared by reacting t-butylamine with ethylenechlorohydrin to give 2-t-butylaminoethanol, converting this to the hydrochloride and reacting this with thionyl chloride.
Patent GB-1505927-A (GB)
Title: Privacy circuit for key telephone systems
IPC: H04M9/00
Filed: 1975-07-29
Abstract: 1505927 Automatic exchange systems INTERNATIONAL STANDARD ELECTRIC CORP 29 July 1975 [8 Aug 1974] 31665/75 Heading H4K In an arrangement wherein more than one subscriber has access to the same line, one or more of the subscribers are provided with a privacy circuit whereby an attempt to access a busy line causes the operation of a relay M to disconnect the subscriber station from the line at contacts M1, M2. For a free line the potential on wire P is at - 24 v. When a station accesses the line by depressing key HK a transistor Q7 is turned on to apply ground to the P lead. A line current monitor Ul comprising phototransistors and LED's is used to maintain transistor Q6 in the off condition and relay M unoperated when the potential on wire P drops to earth. If a privacy key PK is depressed once a line has been accessed the earth on wire P is replaced by a voltage of - 24 v. to allow a second subscriber to connect up to the same line. Depression of the line access key HK when earth is already present on wire P causes transistor Q6 to conduct and relay M to operate. The arrangement may be used in a key telephone system in which each subscriber has access to a plurality of lines, a separate privacy circuit being used for each line to which a subscriber has access.
Patent GB-604100-A (GB)
Title: Improvements in or relating to electrolytic cells
IPC: C25B9/18
Filed: 1945-11-24
Abstract: 604,100. Electrolytic cells. INTERNATIONAL ELECTROLYTIC PLANT CO., Ltd., and BOWEN, C. E. Nov. 24, 1945, No. 31740. [Class 41] An electrolytic cell consists of a number of parallel frames assembled together to form a unit, the members of each frame being of " I " section, the web and flanges of each frame, together with jointing between adjacent frames defining closed compartments surrounding the cells proper. Fig. 1 shows an elevation view of a cell and Fig. 5 three frames, one being in part section. The frames may be made of metal or a plastic, and an internal lip 13 is provided to carry the diaphragm 14. The cell may be used for the production of gases, e.g hydrogen and oxygen, of which the volume of one is greater than that of the other, the diaphragm 14 and web 10 being offset accordingly to give a greater volume on the catholyte side. The gases are first passed through ducts 22 into the closed compartments 17, 18 where entrained electrolyte is separated and returned to the cell, and then removed by pipes 24, 26. Electrolyte is supplied through ducts 33 in the blocks 31, to the bottom member of the frame which is isolated from the others by baffles 20 and is provided with interconnecting holes 27. Overflow electrolyte from the top of the cells is passed out of the upper ducts 32 of the blocks 31 to a temperature correcting device. Circulation may be unassisted, resulting from the difference in specific gravity of the electrolyte in the cell which contains gas and that in the flooded side members which contains no gas. The level of the electrolyte in the side members is maintained sufficiently high to cover the interconnecting holes 28 and prevent mixing of gases. Alternatively, a circulating pump may be used, in which case the side members may contain less electrolyte and a greater circulating rate and current rating may be used. The bipolar electrodes comprise steel sheets 15 on both sides of which perforated metal forward electrodes 15<11> are fitted by distance pieces 15<1>.
Patent GB-404788-A (GB)
Title: Improvements relating to presses for tennis racquets and the like, and to fittings for such presses
IPC: A63B60/44
Filed: 1932-11-10
Abstract: 404,788. Racket-presses. ALEXANDER, J. W., Westmere, Alderbrook Road, Solihull, near Birmingham. Nov. 10, 1932, No. 31755. [Class 132 (ii).] A racket-press having a pair of wood or metal frames or plates between which the racket is clamped is provided with metal fittings, each fitting comprising a pair of metal nuts adapted to be attached to the frames or plates, and a right and left hand screw engaging the nuts, the screw being provided with a finger piece situated between the nuts. The frames a are provided with nuts c in metal plates b secured at the corners, the two frames being drawn together by screws e with a right and left hand thread. Nuts c lie in recesses d at the corners of the frames. A milled finger piece f for manipulating a screw is provided on the screw between the frames. The frames a are prevented from being pulled apart by screws g, the heads engaging in recesses in one of the frames. The screws g are preferably arranged nearer to one end of the frames a than the other so that a wider separation can be produced at the latter end to facilitate insertion of the racket. The plates or nuts of the fittings can be readily manufactured by die-casting operations. The screws can be readily formed from metal rods on appropriate lengths of which the right and left hand threads can be readily rolled. The finger piece can conveniently be cast on the portion of the screw lying between adjacent ends of the threads. In a modification the nuts may be made in the form of bushes which can be driven into apertures in the wood frame, the exterior of the bushes being suitably ridged to effect secure engagement with the frames.
Patent GB-901633-A (GB)
Title: Improvements in or relating to textile carding machines
Inventor: AOKI KUNIO
IPC: D01G15/20
Filed: 1958-12-09
Abstract: 901,633. Carding-engines. DAIWA BOSEKI KABUSHIKI KAISHA. Dec. 9, 1958, No. 31774/61. Divided out of 901,632. Class 120 (1). A carding machine has an undercasing partially enclosing a taker-in and main cylinder, the undercasing being shaped to receive a perforated suction element which may be a plain or toothed roller or a lattice. Preferably, a suction compartment 12 is adjustably arranged with a roller 8, Fig. 3, and is connected to a fan 14. Where a perforated lattice 41, Fig. 4, is employed, a stationary suction compartment 43 is mounted within the lattice. An air chamber 9 beneath the taker-in 3 is formed with an air inlet 10 that may be provided with a damper 10<SP>1</SP> to control air flow to give the optimum separation of fibres and foreign matter. The roller 8 may be so positioned and the undercasing 6a so shaped that the roller is in operative association with both the taker-in 3 and the main carding cylinder 4.