baber/WOPTO huggingface dataset:
Patent GB-842485-A (GB)
Title: Improvements in or relating to electric switches and covers therefor
Inventor: KELLEIGH WALDO JAMES
IPC: H01H13/42
Filed: 1957-11-25
Abstract: 842,485. Retractive switches; snap-action switches; momentary-contact switches. ELECTRICAL APPARATUS CO. Inc. Nov. 25, 1957, No. 36636/57. Class 38 (5). A switch base 32 of insulating material carriers two fixed contact members 111, 112, and a spring blade moving contact member 114 (Fig. 3), by means of hollow rivets 61, 62 and 63, respectively. The rivets are internally threaded to accommodate terminal screws and the end rivets 61 and 63 also accommodate screws 161 and 162 which secure an insulating cover 33. Screws 161, 162 may also act as terminals or may be of nylon to provide a fully insulated cover. An actuator 181 is slidably carried in cover 33 in alignment with the rivet 62 which may support a spring 186 to assist in retraction. A spring 185 changes the leverage of the moving contact blade 114 during operation and thus provides a wiping action of the contacts. One of the stationary contact members 111 or 112 may be omitted if a single-throw action only is desired. The switch may be mounted on an insulating panel by means of terminal strips fastened under the screws in rivets 61, 62 and 63 (Fig. 12, not shown), or by replacing screws 161, 162 by studs each having a nut to hold the cover 33 and another for panel mounting (Fig. 13, not shown). Alternatively small bolts through holes 95, 96 in the cover 33 may fasten the switch to supporting members (Fig. 14, not shown). Bolts through lateral holes 65 and 66 in the base 32 may be used to mount the switch or to join several switches together. A spring arm carrying a roller on its free end may be secured under screw 161 to engage the actuator 181 and operate it in accordance with a cam, for example, followed by the roller (Fig. 15, not shown); or a rigid member having a spring-loaded roller-carrying plunger to engage the actuator 181 (Fig. 16, not shown), may be secured to the top of the switch by means of screws 161, 162. In the embodiment of Fig. 17, the contact blade 114 is replaced by a snap-action assembly comprising a rigid frame 301 and a bowed spring strip 302. In this case the hollow rivet 62 carries a second actuator 312 for returning the switch to the position shown. In a further embodiment (Fig. 19), a modified snap-action assembly co-operates with a stop member 328 to restore the moving contact against member 111 on the one downward operation of the actuator and thereby provides only a momentary contact with member 112.
Patent GB-344058-A (GB)
Title: Improvements in and relating to fluid pressure braking apparatus for vehicles
IPC: B60T17/18
Filed: 1929-12-02
Abstract: 344,058. Fluid-pressure brakes. WINTER, H. J. and WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. Dec. 2, 1929, No. 36933. [Class 103 (i).] Fluid-pressure brakes for vehicles such as trolley buses in which the brake pedal adapted to be depressed by the driver in order to apply the brakes when required, has associated therewith arrangements whereby the brakes are applied automatically in event of the driver failing to maintain his foot upon the brake pedal or a member associated therewith. The vehicle power unit is cut out when the brakes are being applied. The brake cylinders 1 are supplied in normal brake application from a reservoir 4 by means of a control valve 2 operated by a pedal 3 through a double-check valve 20. The reservoir 4 supplies fluid to a chamber 14 in an emergency valve 12 and through a restricted passage 22 to a chamber 16 above a piston valve 13 so that a spring 23 maintains the valve on its seat. A pilot valve 8 in the brake pedal is maintained on its seat by a spring 10 and a stem 9 by the presure of the driver's foot. If this is released, fluid in the chamber 16 is released through a flexible connection 17, the valve 8 and an atmospheric port 11 and the piston 13 is raised by the fluid pressure in the reservoir 4 and fluid is admitted to a chamber 18. When the pressure in this chamber has attained a certain value a spring-pressed valve 24 is raised to admit fluid to the check valve 20 a valve element 21 in which is moved to the right to admit fluid to the brake cylinders 1. The valve 24 is provided to ensure that the degree of application by the pilot valve is less than that which can be obtained by the valve 2, so that the check valve 20 can be reversed by fluid from the valve 2, and the brakes released through the valve 2 when the foot-pedal is first depressed, then released. When the pedal is depressed the valve 8 is reseated and pressure allowed to build up in the chamber 16 and the piston valve 13 reseated and the reservoir 4 cut off from the check valve 20. The electric control circuit of the vehicle motor may be cut off by a pneumatically-operated device 25 associated with the check valve 20 and comprising a spring-pressed piston 26 operating a contact member 27 in the control circuit 29. A cut-out cock 30 is provided between the reservoir 4 and the emergency valve 12 to prevent loss of fluid through the parts 22, 11 and this cock also breaks the circuit 29 in order that the vehicle may not proceed with the reservoir and emergency valve 12 disconnected.
Patent GB-1065295-A (GB)
Title: Process for the production of imidazolidones
IPC: C07D233/32
Filed: 1964-09-09
Abstract: Imidazolidones of general formula <FORM:1065295/C2/1> wherein R represents a hydrogen atom or a lower alkyl group, optionally substituted by a halogen atom, and R1 is an aliphatic, aromatic (including arylsulphonyl), araliphatic or cycloaliphatic group, all optionally substituted, e.g. by a halogen atom or a lower alkoxy or alkyl or nitro group, are prepared by reacting an oxazolidone of the general formula <FORM:1065295/C2/2> with an organic isocyanate compound having the formula R1-N = C = O at an elevated temperature and preferably in the presence of a catalyst, e.g. a tertiary amino base or lithium chloride.
Patent GB-337250-A (GB)
Title: Improved rubber-covered rollers and their construction
IPC: B41N7/06
Filed: 1930-05-30
Abstract: 337,250. Wheatley, R., and Victoria Rubber Co., Ltd. May 30, 1930. Drawings to Specification. Rollers. - The sponge rubber for the under layers of a rubber-covered roller is of the isolated gas-filled pore kind.
Patent GB-1403774-A (GB)
Title: Method of bonding a thread
IPC: C08G63/672
Filed: 1972-08-08
Abstract: 1403774 Bonded yarns and ropes E I DU PONT DE NEMOURS & CO 8 Aug 1972 [9 Aug 1971] 37003/72 Headings D1T and D1W The filaments of a thread, yarn, string cord or rope are bonded together by a thermoplastic copolyester elastomer derived from a dicarboxylic acid having a molecular weight of less than 350, a diol having a molecular weight of less than 250 and a diol (glycol) or polyglycol of molecular weight 350 to 6000, the short chain ester units comprising 15 to 65% by weight of the copolymer and the long chain ester units 35 to 85%. The copolymer having a melt index of less than 150 and a melting point of at least 125C. The filaments may be polyester, nylon or cotton. The dicarboxylic acid may be used as its ester, anhydride or acid chloride. Many aromatic, aliphatic and cycloaliphatic dicarboxylic acids are specified. Aromatic acids of 8 to 16 carbon atoms, particularly phthalic, terephthalic and isophthalic acid and mixtures thereof are preferred. Some p(#-hydroxyethoxy) benzoic acid may also be copolymerised. Specified low molecular weight diols include those with 2 to 15 carbon atoms and especially the aliphatic diols with 2 to 8 carbon atoms. Diol diesters, ethylene oxide and ethylene carbonate are also suitable. The higher (350-6000) molecular weight diol is preferably a poly (alkylene ether) glycol in which the alkylene group is of 2 to 9 carbon atoms. The diol may itself contain ester linkages. Thus a dicarboxymethyl acid of polybutylene glycol may be added to the polymerisation mixture where it is esterified with the low molecular weight diol. Polyester glycols, especially of sterically hindered polyesters, e.g. poly (2, 2-dimethyl-1, 3-propylene adipate) may also be used. Polyformals from pentamethylene glycol and formaldehyde, polythioether glycols, polybutadiene and polyisoprene glycols, their hydrogenation products and glycol esters of dicarboxylic acids formed by oxidation of polyisobutylene-diene copolymers may also be used. Preparation is by ester interchange e.g. dimethylterephalate is heated with a long chain glycol and an excess of short chain diol in at 150 to 260 and the methanol distilled. Organic and inorganic titanate catalysts are listed, as are phenol stabilisers, phthalate ester plasticisers and pigments, dyes, optical brighteners and flame retardants. The binder is applied to the thread &c in an organic solvent or an aqueous dispersion. Pick-up is 1 to 10% by weight.
Patent GB-1021571-A (GB)
IPC: G01G11/08
Filed: 1962-10-01
Abstract: 1,021,571. Hopper discharge. MASCHINENFABRIK BUCKAU R. WOLF A.G. Oct. 1, 1962 [Oct. 4, 1961], No. 37129/62. Addition to 869,757. Heading B8E. [Also in Division G1] The rate of discharge of material from a bunker 1 is controlled by making the endless belt 9 of the parent Specification in the form of a conveyer belt balance. The balance is set with the desired weight of discharge and deflections of the belt close a switch mechanism 12 to regulate the speed of rotation, or the engagement depth of a clearing tool 7. Variation of speed of the tool 7 and of the belt 9 is also effected by a fixed amount according to the direction of travel of the truck 4.
Patent GB-1019910-A (GB)
Title: Pressing iron
IPC: D06F75/18
Filed: 1963-09-23
Abstract: 1,019,910. Pressing-iron. SUNBEAM CORPORATION. Sept. 23,1963 [Nov. 9,1962], No. 37332/63. Heading D1A. A steam iron comprises a sole plate 21 and a heel rest 136 for supporting the iron in an upended position, a water reservoir 45 overlying the sole plate and secured thereto and transparent tube 109 connected to the rear of the reservoir and extending forwardly above the reservoir for indicating the liquid level in the reservoir when the iron is disposed on the heel rest. The tube is connected to the handle 62 which has a transparent top portion to facilitate the viewing of the liquid level. The iron is one of the spray and steam type and has separate boilers 25 and 33 to produce steam and spray. Water enters the reservoir 45 through an opening 79 in the front of the iron from there it is allowed into the boiler 25 where it is turned to steam and after passing through channels (not shown) inside the sole plate it passes to the fabric through vents 31. In order to produce a spray a piston 95 pumps water into the boiler 33 where it is flashed into steam and blown through a non return valve 85 (not shown) through the front of the iron on to the fabric. The piston 95 is operable by means of a trigger 115 under the handle. Temperature is controlled by a bimetallic switch 50 which is adjusted by a bell crank lever 54 operated by a rack and pinion gearing arrangement in which the pinion is connected to a knurled knob 125 located in the iron's handle. To control the amount of steam produced the valve 47 which meters the amount of water allowed into the flash boiler 25 is controlled by a knurled knob 125 similar in position to the knob 125.
Patent GB-887024-A (GB)
Title: Improvements in or relating to egg boilers
Inventor: THOMAS MALCOLM GWYN
IPC: A47J29/04
Filed: 1958-11-20
Abstract: 887,024. Egg boilers. PAUL (PRINTING MACHINERY) Ltd., K. S. Feb. 22, 1960 [Nov. 20, 1958], No. 37376/58. Class 28 (1). An egg boiler has a carriage which can be lowered into and, after a predetermined time, raised from the boiling water, and a lid is provided in which is sufficient space to accommodate the egg after it is raised. The eggs are supported in a carriage 10 in a water container 5 heated by an electric element 35, the carriage being attached by an arm 11 to a slide 12 guided for vertical movement in the lower part of a casing 2. Arms 13, pivoted to the slide, are under the influence of a spring 17 tending to raise the slide and carriage. During cooking, the carriage is held depressed by a catch 22 under the control of a cam 23 on the shaft of a timing-device 24. When released, the carriage is raised into the lid 1 wherein the eggs are kept warm, the lid being hinged to the lower part and provided with a valve 28 to permit escape of steam but prevent spilling of water if the device be overturned.
Patent GB-910245-A (GB)
Title: Improvements in or relating to the production of metal strip electric capacitors having irradiated dielectric material
Inventor: GILBERT ALAN RICHARD
IPC: H01B3/44
Filed: 1960-11-01
Abstract: 910,245. Capacitors. STANDARD TELEPHONES & CABLES Ltd. Nov. 1, 1960, No. 37450/60. Addition to 872,539. Class 37. A method of production of metal strip capacitors having irradiated dielectric material includes the step of feeding a metal strip 4 coated on both faces with a layer of polymerized dielectric material, e.g. polythene over a plurality of guide means 5 such that the metal strip passes back and forth a plurality of times in alternate directions through a single zone of high energy radiation 6 in such a way as to produce cross-linking between the molecules of the dielectric material in both layers in one operation. The chamber 1 may be evacuated or filled with air or an inert gas, and the counter electrode may be applied either before or after the irradiation process.
Patent GB-873382-A (GB)
Title: Improvements in double-acting rotary hydraulic motors or pumps
IPC: F01C21/08
Filed: 1959-11-06
Abstract: 873,382. Rotary pumps and motors. SANNE, P., [trading as SANNE MOTOR & MASKINFABRIK]. Nov. 6, 1959, No. 37736/59. Class 110 (2). The pump or motor has radially-sliding vanes 22 which are projected outwards by means of bars 25 provided with angled ends 27, 28 as shown. The bars 25 are positioned in recesses in the ends of the rotor 13 and may be provided with cut-away parts to allow relative movements between adjacent bars. Inlet and outlet ports and passages 3, 31; 4, 41 are provided for the working fluid.
Patent GB-931969-A (GB)
Title: Flexible hoses
IPC: B29D23/00
Filed: 1961-10-20
Abstract: 931,969. Hose reinforcement. T. L. FAWICK. Oct. 20, 1961, No. 37774/61. Class 99(2). A hose comprises a tubular body 10 of an elastomeric material having completely embedded therein and bonded thereto a series of transverse reinforcement elements 11 in succession along its length, wherein the reinforcement elements 11 have substantially a greater diameter transversely of the hose than lengthwise and are substantially non-deformable transversely of the hose. The elements 11 may be part of a helix 12 or may be separate annular bodies. The faces 11a, 11b of the elements may be corrugated or serrated to give a keying surface for the elastomeric material. A helix e.g. of steel may be wound about the exterior of the hose, the turns being midway between the reinforcing elements 11.
Patent GB-1179994-A (GB)
Title: Electronic Fuel Control System for Gas Turbine Engines.
IPC: F02C9/32
Filed: 1968-08-08
Abstract: 1,179,994. Electric control of gas turbines. GENERAL MOTORS CORP. Aug. 8, 1968 [Aug. 17, 1967], No. 37825/68. Heading G1N. A fuel control system for a gas turbine is responsive to signals representative of:- power lever setting; engine speed; compressor inlet air temperature; compressor discharge pressure and is subject to overspeed and overtemperature limiting controls. The system includes two stages of amplification for the engine speed signal one of which is cut out when the engine speed signal exceeds by a certain amount an inverted compressor inlet temperature signal, so that the control signal approximates to the characteristic acceleration curve for the engine.
Patent GB-630147-A (GB)
Title: Improvements in or relating to cable sheaths and their manufacture
IPC: H01B7/22
Filed: 1946-12-24
Abstract: 630,147. Making cable sheaths. STANDARD TELEPHONES & CABLES, Ltd., SCOTT, T. R., and WESTON, W. K. Dec. 24, 1946, No. 37843. [Classes 83 (ii) and 83 (iv)] [Also in Group XXXVI] A method of manufacturing a cable sheath having three or more layers comprises the steps of applying an intermediate layer or layers in discontinuous form and integrating by heat into a continuous moisture-proof barrier. The sheath may be of circular, oval, rectangular or polygonal section. The intermediate layer may be of a metal having a relatively low melting point such as silver, tin, zinc, lead, tinned lead, or alloys of these metals with or without other alloying ingredients. Such a layer may form a coating on one face or both faces and in some cases the edges of a carrier layer such as iron, steel, aluminium or copper, or a non-metallic backing. The inner and outer layers may be both of metal such as iron, steel, aluminium, aluminium alloys, or copper, or of non-metallic material such as paper, or one layer may be metal and the other non-metallic. In one embodiment a metal intermediate layer has incorporated with it a layer of soft material such as paper or plastic on one or both sides of it. Tubes may be made from tapes spirally wound with butt or overlapping joints or with longitudinal butt or overlapping joints by feeding the tape axially into a cylindrical die. Or one or more layers could be extruded with the intermediate layer formed from tape. According to one method, tapes 14 and 15 coated with a low melting point metal are wound with opposite lays on a mandrel 16, the tube after winding being passed through a highfrequency heating coil 22 to fuse together the metallic coatings. Either the mandrel 16 may rotate or the reels 17, 18 carrying the tapes 14, 15, may rotate bodily about the mandrel. A modification, Fig. 10 (not shown), indicates the method of forming corrugated tubes, which are stated to have a particular application to the sheathing of oil-filled cables. The intermediate layer may be heated.by electrical or other means, the electrical means including induction or dielectric heating of high or low frequency.
Patent GB-905486-A (GB)
Title: Apparatus for supplying two similar variable voltage loads from an a.c. source
Inventor: CALVERLEY HENRY BOLTON
IPC: H01F29/02
Filed: 1957-12-05
Abstract: 905,486. Control of D.C. motors. ENGLISH ELECTRIC CO. Ltd. March 4, 1959 [Dec. 5, 1957], No. 37896/57. Class 38 (3). [Also in Group XXXV] D.C. traction motors M1, M2 are supplied with variable voltage current through rectifier bridges 30, 31 by tap-changing gear 16, 17 on separate secondary windings 14, 15 of supply transformer 11. The tap-changing gear is controlled by a driver's controller and the currents in the two secondary windings are equalized by connecting the windings 32, 34 of a current equalizing transformer 33 in the load circuits. Transformer 33 also serves to limit the fault current if one of the motors is short circuited. Specification 832,934 is referred to.
Patent GB-925156-A (GB)
Title: Improvements in and relating to the removal of arsenic from materials containing it
Inventor: ANSIAU PAUL
IPC: C22B1/02
Filed: 1960-11-04
Abstract: <PICT:0925156/III/1> Arsenic is removed from materials containing ferric oxide and non-ferrous metal oxides by reduction at 150 DEG -450 DEG C. with a gas, e.g. H2, CO, hydrocarbons, coal gas, for e.g. 6-10 minutes in the presence of hydrogen chloride gas water vapour and an inert gas, e.g. N2 or inert combustion gases.  The arsenical materials may be ores, by-products of metallurgical or chemical operations, roasted cobalt speiss or roasting residues of pyrites. The arsenic trichloride formed hydrolyses regenerating hydrogen chloride which may be recycled, and forms particles of arsenious oxide which are swept away by the inert gas.  The reaction rate can be regulated by the concentrations of inert gas and reaction gases. The reduced arsenical material may be treated with chemical methods, e.g. extraction with dilute acid e.g. HCl, dilute alkaline e.g. NaOH, solutions or organic solvents to remove the arsenic.  In Example 1, the residue from the roasting of a pyrite is continously charged through a hopper, 14, via a distributer 13, into an inclined rotary oven, 11, heated by fuel oil or gas to 180 DEG C. in its upper half and 450 DEG C. in its lower half, rotating at a speed sufficient to give a residence time of about 20 min.  The fuel and air inlets, 3, 4, lead into a combustion chamber 1, into which combustion gases, H2O vapour and coal gas are fed at 5 and HCl gas at 2; the gaseous products then pass countercurrently to the solid material in the oven 11, and are discharged through condenser 15, whence HCl, H2SO4, As2O3 and dust are discharged through 16 and gases escape at 17.  The solid residue is discharged from oven 11 into distributing tray 8 where it is removed by scraper 9 into a waggon 10.  In Example 2 a cobalt oxide containing arsenic is placed in a tray and contacted with the reaction gases in a horizontal tube oven electrically heated to 200 DEG C.
Patent GB-946577-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
Inventor: MAGERLEIN BARNEY JOHN
IPC: C07J5/00
Filed: 1960-12-19
Abstract: The invention comprises a compound having the formula: <FORM:0946577/C2/1> wherein R represents hydroxyl, -OPO3H2, -OSO2R11 wherein R11 is an alkyl or aryl radical or O Acyl the term Acyl representing the acyl radical of an organic carboxylic acid, R1 represents a b -hydroxy or keto group and Hal represents chlorine, bromine, fluorine or iodine, provided that when R represents -OPO3H2 or -OSO2R11 Hal represents fluorine, and a process for the preparation thereof by dehydrating a 16-halo-1-dehydrocortisone 21-acylate to produce a 16-halo-17a -hydroxy-21-acyloxy-1,4,9(11)-pregnatriene-3, 20-dione, hypohalogenating to form the corresponding 9a -chloro, bromo or iodo derivative and then if desired epoxidizing to produce a 16-halo-9b ,11b -oxido-17a -hydroxy-21-acyloxy-1, 4-pregnadiene-3,20-dione and then reacting this latter compound with aqueous hydrogen fluoride or aqueous hydrogen chloride to form the corresponding 9a -fluoro- or 9a -chloro derivative, and then if desired oxidizing and/or hydrolyzing to produce the corresponding 11-keto 21-ester or free 21-hydroxy compound, subsequently the 21-hydroxy compound may be treated with an alkyl or aryl sulphonyl halide to obtain a 21-OSO2R11 compound, which may be treated with an alkali metal iodide to obtain a 21-iodo compound or silver dihydrogen phosphate to obtain a 21-OPO3H2 compound; treating the 21-OSO2R11 compound or the 21-iodo compound with a metal fluoride produces the 21-fluoro compounds.  In the process above the dehydration step may be effected with N-bromoacetamide and anhydrous sulphur dioxide, the hypohalogenation step with perchloric acid and N-bromoacetamide or N-iodosuccinimide, the epoxidation step with anhydrous potassium acetate and the oxidation step with chromic acid. Specifications 850,833, 872,112, 873,219 and 946,578 also are referred to.ALSO:Pharmaceutical compositions, having anti-inflammatory and glucocorticoid activity and containing a compound having the formula:  <FORM:0946577/A5-A6/1> wherein R represents hydroxyl -OPO3H2 -OSO2R11 wherein R11 is an alkyl or aryl radical or O Acyl, the term acyl representing the acryl radical or an organic carboxylic acid, R1 represents a b -hydroxy group or keto group and Hal represents chlorine, bromine, fluorine or iodine provided that when R represents -OPO3H2 or -OSO2R11, Hal represents fluorine, and, if desired, a coacting antibiotic or germicide, are administered orally in pills, tablets, capsules, syrups or elixirs, parenterally in liquid injectable products, or topically in ointments, creams and lotions.  Specifications 850,833, 872,112, 873,219 and 946,578 also are referred to.