baber/WOPTO huggingface dataset:
Patent GB-1119664-A (GB)
Title: Highly elastic non-woven products
Inventor: WEBER KARL-ARNOLD
IPC: D04H1/4358
Filed: 1965-07-20
Abstract: 1,119,664. Laminates. FARBENFABRIKEN BAYER A.G. 20 July, 1965 [28 July, 1964], No. 30846/65. Heading B5N. An elastic non-woven fibrous sheet material is made by preparing a mat from elastic fibres prepared by reacting an NCO-terminated prepolymer of a polyhydric compound and a di-isocyanate with a chain-extending agent, embedding the mat between two layers of cellulosic, polyamide, polyester or polyacrylonitrile staple fibres, the fibres all being carded in layers, and consolidating the formed multilayer material. The polyhydric compound may be a polyester or polyether, and the chainextending agent may be a diamine, a hydrazide, a glycol or water. Cellulosic fibres, if used may be of cuprammonium cellulose. The polyurethane fibres may be treated with lubricants, e.g. talcum or amides, esters or sodium salts of fatty acids. The fleece may be consolidated by binders or plasticizers or by needling. Adhesive binders referred to are polymers of esters of acrylic acid and its derivatives, vinyl polymers, natural rubber, polymers and copolymers of butadiene, polyesters having their chains extended by reaction with an isocyanate and polyurethane. They may be introduced in aqueous dispersion or aqueous or organic solution, or incorporated as thermoplastic fibres, powders, granules or shavings of, e.g., polyethylene, polyvinyl chloride or polyamide followed by welding. The products may be used as acoustic tiles, filter cloths, floor mats, furniture and car upholstery and plasticsreinforcing members.
Patent GB-795391-A (GB)
Title: Oil-soluble polymeric additives derived from aldehydic phenols
Inventor: AGIUS PETER JOSEPH VERMONT JAM
IPC: C08G14/06
Filed: 1955-10-28
Abstract: Oil compositions consist of lubricating oils which may be animal, vegetable, synthetic or preferably mineral, or of fuel oils, especially hydrocarbon, and additives which are aliphatic primary amine modified phenol-aldehyde condensation polymers in which the phenol is a mixture of an aldehydic phenol and an alkyl phenol (see Group IV (a)).  In an example, 5 per cent by weight of a reaction product of octyl phenol, salicylaldehyde, formaldehyde and isopropylamine was tested as a detergent for an S.A.E. 30 paraffinic, phenol extracted, mineral lubricating oil.ALSO:Oil-soluble additives are prepared by reacting the condensation product of one mean mol. of a mixture of an aldehydic phenol and an alkyl phenol, and one mol. of an aliphatic aldehyde, with one mol. of an aliphatic primary amine. Specified reagents are salicylaldehyde; octyl phenol; formaldehyde, paraformaldehyde, acetaldehyde, propionaldehyde, butyraldehyde and crotonaldehyde; methyl-, ethyl-, n- and iso-propyl-, and lauryl-amines.  The additives may be mixed with animal, vegetable, synthetic, mineral, hydrocarbon, lubricating or fuel oils, (see Group III).  In an example, octyl phenol and salicylaldehyde is condensed with formaldehyde with an HCl catalyst; unreacted monomers were removed by stripping under vacuum, and the product was dissolved in benzene and cooled; isopropylamine was added and the product again stripped under vacuum.  This additive was then tested as a detergent for a mineral lubricating oil.
Patent GB-655929-A (GB)
Title: Improvements relating to shearing, punching, and stamping presses
IPC: B21D28/08
Filed: 1948-11-29
Abstract: 655,929. Punching-machines. MATTHEWS, E. F. (Engineering Co., Ltd.). Nov. 29, 1948, No.30958. [Class 31 (ii)] [Also in Group XXII] A tool-supporting device in a punching press comprises a tool-head 1 mounted slidably on a pair of similar cylindrical members 5 fixed in the same angular direction to parallel shafts 3 which are journalled for partial rotation in unison in a fixed frame (not shown), so that the punch 11 may be displaced laterally between operations thereof. The head 1 is connected by a ball and socket joint 10 to a rod 6 which is reciprocated by an eccentric 8 attached to a shaft 9. The latter is geared at 20, 21 to a cam shaft 19 provided with a cam 18 whose hub may be secured adjustably thereto so as to vary the amount of throw imparted to follower rollers 17. Levers 16, connected to the shafts 3 and linked together by a ball-ended rod 22, are adapted to support the followers 17 and be rocked thereby in order to displace the punch along a circular path between two positions located on a line perpendicular to the feed direction of the work. piece 13 of sheet material. This displacement occurs on the upward stroke of the punch after the work-piece has been cleared.
Patent GB-808820-A (GB)
Title: Improvements in the construction of radio cabinets
Inventor: BRIDGEN STANLEY
IPC: H04B1/08
Filed: 1956-10-11
Abstract: 808,820. Radio receiving sets. LINDSEY Ltd., C. S. June 14, 1957 [Oct. 11, 1956], No. 31058/56. Class 40 (5). A cabinet for a portable battery radio set peripherally encloses the chassis and has inwardly directed flanges at the front and back which partly overlie the chassis base and loudspeaker panel, an upper part mounted permamently in position and a lower part or parts capable of removal or displacement. As described, the case is made by stitching together blanks of cardboard or other fibrous material covered in leather cloth, leather or ornamental plastic material to form channels having front and rear flanges 2. Fig. 1 shows a two-piece construction in which parts 6, 7 are joined together by screws 9 passing into overlapping tongues of the lower part. In Fig. 4, the lower channels 7 fold around the chassis, being hinged by creases 11 to give access to batteries and are joined together by fastenings passing through eyelets 13. Alternatively, three separate parts may be used in this construction. A carrying strap of plastic material is provided. The holes 4 may be large enough to allow passage of the control knobs 5.
Patent GB-520647-A (GB)
Title: Improvements in and relating to apparatus for desuperheating steam
IPC: F22G5/12
Filed: 1938-10-27
Abstract: 520,647. Steam desuperheaters. GRAHAM, D. A., and AULD & SONS, Ltd., D. Oct. 27, 1938, No. 31076. [Class 55 (ii)] In apparatus for desuperheating steam by spraying water through the seating of a steam valve loaded to maintain the velocity of the steam as described in Specifications 498,083 and 520,109, the water is sprayed from a narrow annular passage formed around the valve seating 11 by an annular sleeve 16. Water is supplied to the passage through holes 19 in the sleeve. The valve is of the kind described in Specification 512,818, [Group XXIX].
Patent GB-146044-A (GB)
Title: Machine applicable as a pump, compressor or motor
IPC: F16H23/06
Filed: 1919-12-12
Abstract: 146,044. Larsson, S. Dec. 12, 1919. Pump-actuating mechanism; revolving-cylinder pumps. - Multi-cylinder compressors of the wobbler-driven type having either fixed or rotary cylinders are provided with elastic connexions between the wobbler arms and the pistons so that the tangential stress is equally distributed. In the construction shown, the wobbler arms 12 are fitted into plugs 13 movable under the control of springs 15 in closed bottom recesses 14 in the pistons.
Patent GB-262793-A (GB)
Title: Improvements in processes for preparing layers for surface printing processes
IPC: G03F7/14
Filed: 1926-12-08
Abstract: 262,793. Ostwald, U. Dec. 8, 1925, [Convention date]. Photo-mechanical printing-surfaces. - To prevent undesirable swelling in making gelatin, albumen or glue surface-printing-surfaces, the water-absorbing property of the layer is reduced and its strength increased by homogeneously mixing with the colloid a non-precipitant water insoluble organic colloid, and subsequently sensitizing the dried layer with an agent, such as a bichromate, which tans it on exposure to light. As an example, to a hot solution of gelatin in concentrated acetic acid is added whilst stirring, a solution of collodion in acetic acid. The solution is coated onto a flat surface (e.g. glass, a rubber sheet, or linoleum) and the solvent evaporated. The layer is then sensitized with a bichromate solution. Alternatively, thin film supports may be coated and mounted on rollers, preferably prior to sensitizing. To make the unexposed parts of the printing surface sufficiently receptive to water after exposure and washing, it is treated with an alkali reagent, e.g. a 3 per cent solution of an alkali metal sulphide (which is better than soda), or ammonium bicarbonate. As an alternative to the use of collodion, a cellulose derivativa or resin (e.g. calophony), and preferably mixed with a cellulose derivative, may be used. If a support is used to which the colloid mixture does not adhere, an intermediate adhesive coating may be first applied, e.g. a solution of cellulose derivatives and preferably containing a material (e.g. resin) to increase its elasticity. The use of castor-oil for the latter purpose is mentioned in the Specification as open to inspection under Sect. 91 (3) (a) but does not appear in the Specification as accepted.
Patent GB-1309035-A (GB)
Title: Methods of and apparatus for separating elements joined to hollow bodies produced by blow moulding
IPC: B29C49/74
Filed: 1971-07-02
Abstract: 1309035 Separating blow-moulded articles SCHMALBACH-LUBECA-WERKE AG 2 July 1971 [3 July 1970] 31195/71 Heading B5A Blow-moulded articles having a predetermined rupture region formed during blowmoulding by suitable shaping of the blow mould, are ruptured at this point after removal from the blow mould by elevated internal gaseous pressure without mechanical aid to produce an opening requiring no finishing. The article to be ruptured may be two blow moulded containers which may have a flash portion therebetween or a single blow-moulded container having a flash portion at its head. As shown in Fig. 3, the blow moulding 1 having a flash portion 3 joined at rupture line 2 is deposited after moulding into a container 4 on conveyer 5, e.g. a turntable. A device 7 having gripping tongs 6 grips flash 2 and raises it against a blast nozzle 8 having a seal 9. Body portion 1 is blown off back into container 4<SP>1</SP> and flash 2 separately removed from tongs 6 for the same process on the succeeding blow-moulding.
Patent GB-801320-A (GB)
Title: Improvements in or relating to a method and apparatus for measuring the combustible content of a gaseous mixture
IPC: G01N33/00
Filed: 1955-11-02
Abstract: 801,320. Analysing combustible gas mixtures. EYRAUD, C. Nov. 2, 1955 [Nov. 19, 1954], No. 31345/55. Class 40 (1). The mixture to be analysed and a reference gas are caused to flow alternately over an ignition element the electrical character of which varies with the resulting temperature change to furnish an indication of the combustible content. As shown in Fig. 1, a cam-controlled diaphragm alternately sucks combustible gas from outside and drives burnt gases, which act as the reference gas, over a filament 1. The resistance change of the filament is a measure of the combustible content of the gas and is measured by taking the difference between the maximum and minimum voltage drop across a constant resistance AB in series with 1, as indicated by the difference between the charges on capacitors 8, 9. In a modification, Fig. 2 (not shown), the alternating movement of the burnt and tmburnt gases is produced by a periodically energized heater filament. In a further arrangement, Fig. 6, this movement is caused by a piston 23<SP>1</SP>. Fig. 7 shows a readily replaceable combustion chamber with locating pins 28 and a removable plug 29 carrying the filament.
Patent GB-637370-A (GB)
Title: Improvements in or relating to electrical control devices for tanks
IPC: G05D9/12
Filed: 1946-10-22
Abstract: 637,370. Automatic control systems for liquid containers. LIQUIDOMETER CORPORATION. Oct. 22, 1946, No. 31350. Convention date, Dec. 22, 1945. [Class 38 (iv)] The levels of liquid in two tanks are maintained equal, by the closing of the outlet valve of the tank having the lower level, by electric means operated from level sensitive devices in the tanks. As shown, the aircraft wing fuel tanks 1, 2 supply the engine (not shown) through pipe 3 and valves 6, 7 which are controlled by the solenoids 8, 9 respectively through the relays 91, 97 and electricallyheated bellows 61, 60 from the float-operated potentiometers 10, 11 and 12, 13. In accordance with which of the tank levels is lower, the current through one or other of the heater coils .57, 51 rises owing to the adjustment of the potentiometers 10, 11 or 12, 13 by floats 21 or 31, to cause an expansion of the volatile contents of its associated bellows 61, 60. The resultant motion of the links 80, 82 effects movement of the contact arms 87, 88 to produce energization of relay 91 or 97 and the solenoid 8 or 9, to close the valve 7 or 6 associated with the quicker draining tank. Upon equalization of the liquid levels, both bellows are heated equally, both 91 and 97 are inoperative and both valves 6, 7 remain open. The bellows 74, 77 compensate for the effect of altitude upon the bellows 61, 60. The device may be applied so as to open the valve of the slower draining tank.
Patent GB-692221-A (GB)
Title: New process for the preparation of -a- and -a-6-methyl-ionones
Filed: 1950-12-27
Abstract: a - and b -Irones (6-methyl-ionones) are obtained as a mixture containing stereoisomeric forms by the ring-closure of 2 : 6-dimethyl-3-methylene - undeca - 6 : 8 - dien - 10 - one with an acidic catalyst.  Suitable catalysts are sulphuric acid (S.G. 1.49-1.53), phosphoric acid (S.G. 1.65-1.7) and boron trifluoride, the latter forming a complex with the product which is decomposed by alkali.  Examples are given of the use of these three catalysts, the product being a mixture of stereoisomers of a -and b -irones as in Specification 643,353.  Purification is effected via Girard's reagent P; the phenylsemicarbazone and 2 : 4-dinitrophenylhydrazone are also mentioned.  Separation of stereoisomers may take place before or after ring-closure.  2 : 6 - Dimethyl - 3 - methylene - undeca - 6 : 8 - dien - 10 - one is made from 2 - methyl - 3 - methylene - 6 - heptanone by reaction with acetylene and hydrogenation to give 2 : 6-dimethyl-3-methylene-oct-7-en-6-ol.  The latter is oxidized (with isomerization) to 2 : 6-dimethyl-3-methylene-oct-6-en-8-al which is finally condensed with acetone.
Patent GB-1029166-A (GB)
Title: Improvements in or relating to winches for paying out cables
IPC: B66D1/74
Filed: 1964-08-04
Abstract: 1,029,166. Winches. SOC. GENERALE D'ENTREPRISES. Aug. 4, 1964 [July 31, 1963], No. 31423/64. Heading B8B. [Also in Division F2] A cable paying out winch comprises two drums 1, 2 each formed from a plurality of sheaves 5 frictionally coupled together on a basic drum body and an internal toothed ring 8. 9 at the bottom of each said body which is drivingly engaged by a pinion 10, 11 driven from a worm reduction gear 12, 13, the latter both being coupled to a differential gear 16 of a drive system 18. The frictional engagement between the sheaves 5 is varied by screws 33 adjustably engaging a compression ring 17 at the top of each drum body. The two drums are mounted on axles 6, 7 which are inclined relative to each other in parallel vertical planes transverse to the path between the two axes. A manually controlled brake 19. is mounted on each shaft 14, 15 between the reduction gears 12, 13 and the differential 16. In operation the cable 4 from a spool is wound in the sheaves 5 around the two drums and around the bottom sheave 5<SP>1</SP>, of each drum which is integral therewith before passing on to a towing winch. The constant speed of the paying out winch is slightly less than that of the towing winch so that a tension is maintained in the cable therebetween, any excessive tension in the cable on the paying out winch being relieved by the sheaves slipping relative to the drum bodies. In a further embodiment, Fig. 3, the loading on the friction grip sheaves 5 is effected by an hydraulic system mounted for rotation on each drum body. The system comprises pressure cylinder and piston assemblies 34 which act on the compression rim 17 and which are hydraulically coupled to a master cylinder 22 pressure-controlled by a screw 24 and registered by a manometer 26. The head 25 of the screw 24 is a toothed pinion and can be selectively engaged at each rotation of the drum for rotation by vertically movable pins on toothed sections 29, 30 on sliding supports 27, 28 all mounted on the stationary frame B of the winch and controlled from links 31. A pre-adjustment screw 32 may be supplied in each assembly 34.
Patent GB-341123-A (GB)
Title: Improvements in models for the design of illuminating systems
IPC: F21S13/00
Filed: 1929-10-16
Abstract: 341,123. Systems of lighting. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and WALDRAM, J. M., of General Electric Co., Wembley, Middlesex. Oct. 16, 1929, No. 31438. [Class 75 (iv).] Apparatus for the design of a system of illumination for a street or other region consisting of a plurality of repeated sections comprises a scale model of one of the sections bounded at both ends by plane mirrors 11, 12 and containing electric lamps 13, the images 13a, 13b, 13c being viewed through an aperture 14 in the mirror 11. An adjustable shutter 15 is provided to cover part of the mirror 11 and thereby reduce the apparent length of the street. One or both mirrors may be tilted about horizontal and/or vertical axes so as to produce the effect of a hill and/or a curve. The floor of the model may be made reversible so as to provide different effects such as a wet and a dry road surface. Any one or more of the lamps 13 may be illuminated to provide various distributions of light, their brightness may be varied by means of resistances, suitably calibrated voltmeters and ammeters may be provided, and ballast lamps may be used to keep constant the total number of lamps in circuit. The street may be made to appear lined with buildings by introducing into the field of vision a virtual image of existing or proposed buildings. For this purpose an illuminator 17 projects light through a photographic or other transparency 20 and a collimating lens 19 on to a thin unsilvered glass mirror 16 arranged at 45‹ to the line of sight between the viewing aperture 14 and a single binocular eye rest 26. The illuminator 17 is arranged within a hand operated rotary drum carrying a number of transparencies and an obscuring shutter and comprises a diffusing window 23, a translucent partition 25, and lamps 24 wired in parallel with the lamps 13. A spy hole may be provided whereby a demonstrator may check the demonstration by viewing the street by reflection from the other side of the mirror 16. In a simplified form the mirror 11 is replaced by a non-reflecting fixed plate with an eye-hole.
Patent GB-739223-A (GB)
Title: Improvements in electrical spark ignition arrangements
Inventor: STONE DENIS
IPC: F02P15/00
Filed: 1953-11-13
Abstract: 739,223. Ignition systems. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 10, 1954 [Nov. 13, 1953], No. 31557/53. Class 7(4). In an arrangement for the production of spark discharges comprising an iron-cored inductor 1 connectable to and disconnectable from a source of D.C. through a switch 2 to store energy in and release energy from the inductor, a condenser 3 and a sparking plug 4 are connected in parallel with one another and the switch so that upon the switch opening energy released from the inductor is transferred to the condenser and subsequently released therefrom to discharge across the plug 4. The plugs 4 are energised by the remaining energy in the inductor, as well as the condenser, discharging via a distributer 5 which may be coupled to the switch ; the switch may, however, be manually operated. The plugs may be of the surface discharge type and the distributer is dispensed with if only one plug is used. Means may be provided to prevent the switch from remaining in the closed position or to open the circuit from the supply to the inductor when the circuit is inoperative. Under optimum conditions the condenser voltage is raised to the breakdown value of the plugs at the same instant as the stored energy is transferred thereto ; in practice the circuit is either designed with a safety factor to ensure that the breakdown voltage of the plugs is always reached or an auxiliary triggering circuit, not shown, is used to initiate breakdown of the plug gap when the total stored energy is discharged. Electrical values of the circuit components are given.
Patent GB-1444452-A (GB)
Title: Two-phase charge shift arrangements
IPC: H01L29/762
Filed: 1974-07-17
Abstract: 1444452 Charge-coupled devices SIEMENS AG 17 July 1974 [14 Aug 1973] 31560/74 Heading H1K In the manufacture of a two-phase chargecoupled device having obliquely implanted doped zones 14 beneath the corresponding edges of the spaced electrodes 101, 103, an apertured photoresist layer 13 used as an etching mask in the formation of the spaced electrodes 101, 103 from an initially continuous electrode material layer is left on during the oblique implantation step to provide the desired height-to-width ratio for the gap 15 through which the dopant for zones 14 is implanted. After subsequent removal of the photo-resist layer 13 a further vertical implantation may be carried out.
Patent GB-833896-A (GB)
Title: Improvements in or relating to electric power convertors
Inventor: FOUGERE GUY LLOYD
IPC: H02M7/5383
Filed: 1957-10-09
Abstract: 833,896. Converting. SYLVANIA-THORN COLOUR TELEVISION LABORATORIES Ltd. Sept. 11,1958 [Oct. 9, 1957], No. 31599/57. Class 38 (2). [Also in Group XL (c)] In a power converter the base and emitter electrodes of two NPN transistors are connected to one supply terminal and the base and emitter electrodes of two PNP transistors are connected to the other terminal. The collector of an NPN transistor, Fig. 1, is connected to the collector of a PNP via a primary winding and the collectors of the other two transistors are similarly connected by a second winding. Alternatively, Fig. 2 (not shown), the collectors of a NPN and a PNP transistor are joined together and through a primary winding to the collectors of the other transistors. In both arrangements the system is made to oscillate by a feed-back winding in the base-emitter circuit of each transistor. Fig. 3 shows a biasing arrangement in which the feed-back winding 13, 18 and shunt fed via blocking capacitors 30. In Fig. 4 (not shown), the feedback windings 13, 18 are connected in series with the base, bias capacitors being connected across the resistors 28, 28a. These biasing circuits ensure thermal stability and may be adjusted for operation at Class A, AB, or B. The feed-back windings may alternatively be included in the emitter circuits. The overall efficiency is stated as being 90%. A D.C. output of higher voltage than the supply input may be obtained by rectifying the output of the secondary 25.