baber/WOPTO huggingface dataset:
Patent GB-391506-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D14/30
Filed: 1932-04-20
Abstract: 391,506. Gas burners. COMMERCIAL GAS CO. and PARRIS, W. R., Harford Street, Stepney, London. April 20, 1932, No. 24903/31. [Class 75 (i).] A shield for the air inlets of an atmospheric burner comprises a preferably dished disc 5 formed with a plurality of blades 7 in contact with the concave surface of a dished disc 4. The blades 7 are formed by making a plurality of preferably radial slits in the disc and bending the material between the inner end of each slit and the outer end of the next slit. The discs may be secured together by soldering or welding or flanging the periphery of the disc 4 over the tips of the disc 5. The latter may fit slidably on the mixing-tube and the disc 4 be clamped between the end of the mixing-tube and a shoulder on the gas nipple.
Patent GB-1018851-A (GB)
Title: Bulky isotactic polypropylene yarns
Inventor: BENSON RICHARD WILLIAM HAROLD
IPC: D01D5/23
Filed: 1963-06-24
Abstract: Stable, bulky isotactic polypropylene filamentary yarns are produced from drawn filament yarns made by the process of the parent Specification (wherein isotactic polypropylene is melt spun at such a temperature and at such a throughput from polymer of an intrinsic viscosity such that the intrinsic viscosity of the spun yarn is in the range 1.0 to 3.0, and the birefringence of the spun yarn is between 10 x 10-3 and 25 x 10-3, the yarn being allowed to relax freely, either with or without an intermediate drawing step, (see Division B5), by plying the yarns together without previously heat treating them, and then, after plying them together heat setting the plied yarns by maintaining them at a temperature within the range 60 to 140 DEG C, preferably 90-115 DEG C for a time between a few minutes and a few hours.  The yarns are characterised by a high twist stability.
Patent GB-250345-A (GB)
Abstract: 250,345. Doyle, D. Jan. 19, 1925. Indicating by measuring quantity of liquid in fixed immersed tube.-The depth of fuel in the main tank, particularly on motor vehicles, is shown at a convenient and elevated position e.g. on the dashboard, by withdrawing by suction a depth sample from the main tank and transferring it to an indicator or gauge suitably placed for observation. 'Within the tank depends a tube 1, Fig. 1, with flared outer end and enclosing a hollow rod 4 provided at its lower end with a valve disc 29 and transverse bore 6. Near its upper end the rod 4 has another transverse bore 6<1> and passes through a valve 7 its movement in which is limited by a spring 8 and collar 9. Suction is transmitted through the union 3 which is connected to a union 10, Fig. 4, on the indicating part of the apparatus. This comprises a transparent receptacle 11, Fig. 3, which may be calibrated and encloses an inflow pipe 12 and a suction pipe 13. A duct 15 in the base leads to an outlet 16 in communication with the fuel-feed system. A manually actuated spring-loaded plunger 17 has an annular groove 18 on its exterior and a radial air relief bore 19. The level in tube 1 corresponds with that in the tank. If now the plunger 17 is pushed in, the tube 13 is cut off from atmosphere and placed in communication, through groove 18 with the suction conduit 14. Suction is thus transmitted through 12, 10, 3 to valve 7 which rises and closes valve 29 thus isolating the interior of tube 1 from the tank contents. The liquid enclosed in the tube is then withdrawn to the vessel 11 for observation. The plunger 17 is now released and, in returning, places pipe 13 in communication with the atmosphere and opens the discharge duct 15. In a modification the hollow rod 4, Fig. 1, is mounted at its upper end in a chambered valve which is attached to a flexible diaphragm and slides over a fixed tube connected with the suction conduit and provided with lateral ports.
Patent GB-1259770-A (GB)
Title: Improvements in or relating to shoe upper conforming machines
IPC: A43D21/18
Filed: 1970-05-26
Abstract: 1,259,770. Boots &c. BRITISH UNITED SHOE MACHINERY CO., Ltd. 26 May, 1970 [26 May, 1969], No. 25148/70. Heading A3B. A lasting machine includes a pair of shank wipers having wiping surfaces 53 which can be adjusted in curvature to suit different styles of shoes, each wiper consisting of a plurality of wiper members 38 pivoted on supports 40 which are carried by a common pivot 41, the supports 40 having slots 43 through which is passed securing means to secure the supports 40 together with the wiper members 38 in their adjusted positions. As described the wipers are incorporated in a lasting machine of the type described in specification No. 1,087,975. Each wiper member 38, except the first wiper member 38, is pivoted at 65 to a double armed support 40 and all the supports 40 and the first wiper member 38 are pivoted to a common pivot pin 41 which is carried by an arm 42. The arm 42 also carries a bolt 44 with nut 45 which passes through slots 43 in the supports and which is used to secure the supports 40 and thus the wiper elements 38 in their adjusted position. The arm 42 is pivoted at 46 to one arm 47 of a two armed lever 48, the angular position of the arm 42 being adjusted by screw 51. The lever 48 is carried by the slide 30 which carries the ball wipers 28 and is urged heightwise by a piston and cylinder device (not shown) which exerts light pressure during closing movement of the wipers and heavy bedding pressure when the wipers are fully closed.
Patent GB-916536-A (GB)
Title: Improvements in or relating to phenol purification
IPC: C07D307/79
Filed: 1961-07-12
Abstract: Impure phenol derived from cumene is maintained at an elevated temperature in the liquid phase in the presence, as catalyst, of a halide, sulphate, or nitrate of platinum, or a nitrate of a metal of Group IIB, IIIA, IV, VA, or VIII of the Periodic Table and of atomic number below 52, until substantially all a -hydroxycarbonyl compounds contained in the mixture are converted into benzofurans, and thereafter purified phenol is recovered from the product.  The impure phenol may be the crude product of a cumene hydroperoxide cleavage reaction which has been stripped of low-boiling and/or high-boiling impurities.  The catalyst may be present to the extent of 0.005-5.0% by weight of the phenolic material being treated.  The temperature of the treatment may be 40-182 DEG C. at atmospheric pressure. Pressures above or below atmospheric may be used.  Preferred catalysts are platinum chloride, ferric nitrate, and zinc nitrate. The treatment may be carried out as a batch process or as a continuous process.  After the treatment of the phenol and if necessary after removal of high or low boiling impurities by fractional distillation, the benzofurans are removed e.g. by distillation and extraction, preferably by water extractive distillation.
Patent GB-906742-A (GB)
Title: Apparatus for the delivery of gases in measured quantities
Inventor: PARKER JAMES
IPC: F04B35/00
Filed: 1960-07-19
Abstract: 906,742. Compressors. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 19, 1961 [July 19, 1960], No. 25169/60. Class 8 (1). A gas pump 6 of the reciprocating-piston oscillating-cylinder type, driven by a mains or battery-operated motor 4 and sealed and lubricated by lubricant 19 in a sealed casing 2, is connected to a revolution counter 5 so that the volume of gas delivered may be measured. The pump crankshaft 17 is driven through belt and pulley reduction gearing and is connected to a blade 32 on the counter shaft. The inlet gas passes from an external nipple and through a pipe to a union 15 and the pump discharge gas into the space 25 above the lubricant and the ce through a pipe 23 and nipple 24. A filler cap 27 allows the lubricant to be replenished and also gives access to the nut 29 and spring 13 on the trunnion 11 by which the pump cylinder is pivotally supported.
Patent GB-1103027-A (GB)
Title: Improvements in or relating to hydraulic pressure controlling means
Inventor: FARR GLYN PHILLIP REGINALD
IPC: B60T8/18
Filed: 1965-06-15
Abstract: 1,103,027. Hydraulic brakes; fluid springs. GIRLING Ltd. 15 June, 1966 [15 June, 1965], No. 25228/65. Headings F2F and F2S. A vehicle brake control device comprises a valve body 1 housing a piston 4 which in turn houses a spring-loaded, self-closing valve assembly 9, 11, 12, 13. The body 1 is provided with an inlet 2 for hydraulic fluid from a master cylinder and an outlet 3 for fluid to pass to the rear brakes of the vehicle. The control device further comprises a fluid spring, as shown a spring assisted air spring, having centrally apertured end walls 22, 23. The piston 4 is spring-loaded by a spring 14 towards its inoperative position and is provided at its outer end with a valve seat 26 which co-operates with the aperture 22A in the air spring wall 22 when the brakes are operated. The control device also includes a linkage 34, 36 and spring loaded plunger 28 arrangement which plunger 28 is urged towards the air spring as the loading of the vehicle decreases. The plunger 28 is also provided with a valve seat which acts to close the aperture 23A in air spring wall 23 to form, when the brakes are actuated a closed air spring. In the unladen and lightly laden conditions the air spring will be sealed more quickly than in highly laden conditions and thus the piston 4, which, when the valve assembly 9, 11, 12, 13 is automatically closed at a predetermined pressure during a brake actuation, transmits pressure to the rear brakes, is resisted in its brake pressure intensification movement to a greater degree in the unladen than in the laden condition. In a modification (Fig. 2, not shown) the movable wall of the fluid spring which cooperates with the piston comprises a piston movable in the valve body, the valved aperture in the other movable wall being omitted. The device is also disclosed (Fig. 3, not shown) in its mounted position on a vehicle. The fluid spring may comprise an air spring which is mounted in a pressure-tight vessel such that the assembly works at a high pressure or it may comprise a liquid spring.
Patent GB-1268285-A (GB)
Title: Improvements in or relating to telecommunication cables
IPC: H01B11/18
Filed: 1970-05-26
Abstract: 1,268,285. Coaxial cables. INDUSTRIE PIRELLI S.p.A. 26 May, 1970 [5 Sept., 1969], No. 25316/70. Heading H1A. A coaxial telecommunication cable comprises a filiform copper inner conductor 1 surrounded by polyolefine resin 2 and an outer conductor 3 made of copper or aluminium tape which is longitudinally seamed with overlapping edges 5, 6. A screening member 3<SP>1</SP> made of iron tape longitudinally seamed with overlapping edges 5<SP>1</SP>, 6<SP>1</SP> is applied directly on the conductor 3 and is surrounded by a tape 4 of paper, plastics, or heat shrinking plastics which may be selfadhesive.
Patent GB-766772-A (GB)
Title: An agglutinant and process for sticking together materials
IPC: C08G59/50
Filed: 1953-09-15
Abstract: Adhesives for sticking materials of all kinds consist of a mixture of the epoxyalkyl ester of a polycarboxylic acid with an alkaline substance.  The epoxy-containing esters may be prepared by reacting epichlorhydrin with alkali metal salts of polycarboxylic acids at raised temperatures and pressure or in the case of aromatic polycarboxylic acids by the action of the acid halide on glycide in the presence of an organic tertiary base. These processes are claimed in Specifications 735,001 and 766,771. A long list of polycarboxylic acids is given, and it is also stated that oleeylalcohol-9,10-epoxide may replace glycide in the preparation of the esters.  The polycarboxylic acid may also be a high molecular weight carboxyl-terminated polyester.  Suitable alkalies as hardening agents are piperidine, ethylenediamine, diethylenetriamine, triethylenetetramine, dicyandiamidine, diacetoneamine, benzidine, caprolactam, a condensate of dicyandiamide and diethylenetetramine, sodium or calcium hydroxide or quick lime.  The preferred proportion of alkali is 5-20 per cent.  Plasticizers, e.g. dibutyl phthalate or tricresylphosphate may be included in the adhesive compositions. The compositions may also include other epoxy compounds, e.g. glycidyl ethers of polyvalent phenols or mono-epoxy compounds, e.g. phenyl-glycidyl ether, glycidyl esters of fatty acids, or p-toluenesulphonic acid glycidyl ester.  The esters may be used in solution in volatile solvents, e.g. esters or ketones.  Other possible additives are wood dust, fibres or chips, stone dust, mica, animal glue, starch derivatives or melamine resins.  The setting time may be reduced by heating.  The adhesives may also be used as binders for moulded articles or for laminated material.  A number of examples are given illustrating the use of various additives as mentioned above, together with resin intermediates prepared from dipotassium phthalate, dipotassium adipate or dipotassium maleate, and epichlorhydrin, or from terephthalic acid dichloride and glycide in presence of triethylamine.
Patent GB-201802-A (GB)
Title: Improvements in methods for insulating the coils of static transformers
IPC: H01F27/32
Filed: 1922-09-20
Abstract: 201,802. Sostene, V. E. Sept. 20, 1922. Transformers. - In transformer coils in which successive layers of wire 2 are insulated from each other by strips of paper 1, the edges of the strips are folded several times over themselves in the manner of an accordian for the purpose of providing insulation between adjacent coils. For wires of large diameter two strips, with the folded parts disposed in opposite directions, may be employed between each layer.
Patent GB-1532524-A (GB)
Title: Method of lowering the potassium oxide content of wood fly ash
IPC: C01B33/12
Filed: 1976-06-18
Abstract: 1532524 Potassium oxide-silicates from wood ash E C BETZ 18 June 1976 [25 Aug 1975] 25484/76 Heading C1A [Also in Division C5] Stable potassium oxide containing silicates for example having a melting point of not greater than 1200‹ C. are produced in a method of lowering the potassium oxide content of wood fly ash generated by burning wood particles wherein the wood particles are mixed with at least one alkali metal silicate having a melting point not greater than 1200‹ C. and with silica, simultaneously or subsequently burning the mixture and withdrawing the potassium oxide containing silicate as a molten slag. Another alkali metal compound (e.g. hydroxide or carbonate) having a melting point not greater than 1200‹ C. may be present in the mixture.
Patent GB-1433988-A (GB)
Title: Windshield wiper
IPC: B60S1/38
Filed: 1974-06-07
Abstract: 1433988 Windscreen wipers ANDERSON CO 7 June 1974 [16 Oct 1973] 25493/74 Heading A4F A windscreen wiper assembly comprises a primary yoke 44 which is connected to a secondary yoke 48, slidably engaged with a backing strip 22 on a wiper element 20, by passing claws 56 on the primary yoke 44 through notches or indentation 64 in yoke 48 and then moving the claws 56 towards the middle of the wiper element 20 to engage pivotally surfaces 66 on the yoke 48 and to abut against stops 70 also on the yoke 48, which stops 70 are urged against the claws 56 by the urging of the yoke 48 towards an end of the wiper element 20 by an abutment 30 on the element 20. Two secondary yokes 48 similarly connected to opposite ends of the yoke 44 are urged apart by the resilience of the portion of the wiper element 20 disposed between two abutments 30. In a second embodiment each of two plastics secondary yokes 148 Figs. 9 to 11 (not shown) are connected to the ends of a plastics primary yoke (144) which has claws (180) engaged in elongated notches in each secondary yoke (148), abutments (130) on the wiper element holding the secondary yokes (148) apart so that lugs (182) in the notches are engaged pivotally by the claws (180).
Patent GB-642514-A (GB)
Title: Improvements in or relating to organic sulphur derivatives
Inventor: EDWARDS HARRY DEREK
Filed: 1948-10-02
Abstract: Compounds of the general formula <FORM:0642514/IV (b)/1> and stereo-isomeric forms thereof are prepared by reacting a compound of the general formula <FORM:0642514/IV (b)/2> with a mercaptan R3SH, wherein R1 and R2 are alkyl groups and R3 is an alkyl or aralkyl group.  The reaction may be effected in presence of an acid condensing agent, e.g. zinc chloride or sulphuric acid, and in substantially anhydrous conditions.  Ethyl 2 - cyano - 3 - ethylthio - 2 - butenoate is prepared by mixing ethyl a -cyanoacetoacetate and ethyl mercaptan in a freezing mixture, diluting with ether, adding ether containing a trace of HCl gas, allowing to stand, and adding anhydrous zinc chloride.  Methyl 2-cyano-2-ethylthio-2-butenoate, ethyl 2-cyano-3-isopropylthio-2-butenoate, ethyl 2-cyano-3-n-butylthio-2-butenoate, ethyl 2-cyano-3-benzylthio-2-butenoate, and methyl 2-cyano-3-methylthio-2-butenoate are similarly prepared. Ethyl a -cyanoacetoacetate is prepared by adding ethyl cyanacetate to powdered sodium suspended in dry ether and stirring, allowing to stand, and adding acetyl chloride with cooling and stirring. Methyl a -cyanoacetoacetate is similarly prepared. Specifications 642,515, 642,516 and 642,517 are referred to.
Patent GB-1033794-A (GB)
Title: Filter apparatus
Inventor: ROSSLER EUGEN
IPC: B01D29/15
Filed: 1964-06-22
Abstract: 1,033,794. Gas filters. W.MEYER, K. WOLFGANG, K. U. MEYER-RUDOLPHI and H. H. MESSNER, [trading as SCHUMACHER'SCHE FABRIK]. June 22,1964, No. 25763/64. Heading B1T. A filter candle 18 comprises a filter element 32 fitting over a carrier 26 having a rib 34 which co-operates with a resilient sealing ring 38 to secure element 32 in place when the candle projects through a hole 30 in partition 16. Partition 16 separates the inlet and outlet compartments of a filter housing (Figs. 1, 4, not shown), and various carriers 26 are urged downwards by a common pressure plate 20. Plate 20 may be spring loaded by leaf springs, spring washers or coil springs (Fig. 3, not shown). Element 32 is a bag made of metal gauze, woven fabric or inorganic and/or organic fibrous fleece. Carrier 26 may be perforated metal or plastics, porous plastics or plastics-bonded glass fibre, and rib 34 may be separate therefrom. Ring 38 may be of polygonal section to provide a face matching rib 34.
Patent GB-1352480-A (GB)
Title: Voltage regulator circuit
IPC: G05F3/06
Filed: 1972-06-02
Abstract: 1352480 Automatic voltage regulation WAGNER ELECTRIC CORP 2 June 1972 [3 June 1971] 25798/72 Heading G3X An alternating voltage regulator uses the non- linear region of the permeability curve of a transformer core to make the primary winding act as a variable inductance forming an LC input circuit of variable resonant frequency which compensates automatically for variations in the amplitude of the supply voltage. As shown, an A. C. source is connected across a capacitor 18 and primary winding 12 of transformer 10. A load 30 is connected across the secondary winding 16. In operation, the transformer core 14 is driven into a region of decreasing permeability, while the resonant frequency of the input circuit 12, 18 is arranged to be between 1 and 5 times the supply frequency at the nominal supply voltage. The frequency ratio is preferably 1À5. In a second embodiment, Fig. 2 (not shown), the transformer 10 is replaced by an autotransformer.
Patent GB-1549196-A (GB)
Title: Food product and process
IPC: A23L13/40
Filed: 1975-06-17
Abstract: A foodstuff or animal feed containing pieces of edible protein in a gelled aqueous medium with a total moisture content of 65 to 95% is prepared. A mixture containing 6 to 10% of protein, 3 to 12% of fat, fermentable carbohydrates, thermally reversible gelling agent, an antimycotic and moisture is formed at a pH of greater than 4.5. The mixture is inoculated with an acid-producing microorganism and fermented until it reaches a pH of at most 4.5. Stable foodstuffs or animals feeds are obtained by this process.
Patent GB-1208534-A (GB)
Title: Stacking-device for temporarily storing postal documents
Inventor: KUYT CORNELIS
IPC: B07C1/02
Filed: 1969-05-21
Abstract: 1,208,534. Delivering sheets. NETHERLANDS POSTAL & TELECOMMUNICATION SERVICE, DIRECTOR GENERAL OF. 21 May, 1969 [27 May, 1968], No. 25897/69. Heading B8R. Postal documents are delivered between the nip of two belts and past rollers 1-V into a stack, each document passing between the rear of the stack and a stacking belt S of a stacking head Stk pivoted on the axis of a roller A mounted on a carriage Stw. and urged against the stack by a spring V. Documents are removed from the front of the stack. The trailing end of each document is moved towards the stack by a worm W. When no document is delivered or removed, the head is in equilibrium and the carriage stationary. When a document is delivered, the head is forced rearwardly, and a cam SN thereon closes a microswitch SI and the carriage moves backwards until the switch opens and equilibrium is restored. When documents are removed, the head moves forwardly and a microswitch SII is closed and the carriage moves forwardly.
Patent GB-760081-A (GB)
Title: Preparation of eta alumina
IPC: F01L1/44
Filed: 1954-09-07
Abstract: Alumina, particularly suitable for a catalyst support, consisting predominantly of eta alumina, is prepared by hydrolyzing an aluminium alcoholate at 32-70 DEG F., with 1-10 volumes of water per volume of alcoholate, aging the resulting alumina precipitate as a slurry for 10 to 40 hours, drying the slurry to remove the aqueous medium and heating the beta alumina trihydrate so produced to a temperature of 400-1250 DEG F. to convert it to eta alumina.  A catalyst component may be added before the calcination or alternatively to the beta trihydrate before or after the latter is dried.  Hydroforming catalyst may be prepared by the addition of molybdenum, vanadium, tungsten or chromic oxides or metallic salts of molybdic acid such as calcium or cobalt molybdates or preferably by the addition of platinum or palladium.  Molybdenum oxides can be incorporated by slurrying the oxide with the hydrous alumina (beta trihydrate) or the latter may be dried and the molybdenum oxide sublimed thereon or the finished alumina may be treated with ammonium molybate.  5-20 per cent of molybdenum oxide or metallic molybates, up to 40 per cent of chromium oxide, 0.001-2 per cent of platinum or 0.5-5 per cent by weight of palladium may be incorporated.  The preferred catalyst, platinum, may be impregnated on the alumina support by treatment with water soluble platinum containing compounds or colloidal solutions thereof for example of chloro-platinic acid, potassium platinum chloride, platinum disulphide, tetrammino platino chloride, potassium platinoitrite, dichloro diammino platinum, ammonium platinonitrite, and dinitrito-diammino-platinum.  After impregnating with the platinum solution and heating to dryness at 100-600 DEG F. the dried catalyst is preferably reduced for example by treatment with hydrogen at 200-1000 DEG F. at 1000 p.s.i.g.  The catalyst may also be calcined at 800-1250 after the drying step. The catalyst before, after or during catalytic impregnation may be treated with an aqueous solution of an oxidizing acid such as perchloric acid or hypochlorous acid and a hydrogen halide, preferably a mixture of nitric and hydrochloric acids.  The catalyst may also be treated with gaseous halogen, for example chlorine in an amount of 0.1 to 10 per cent by weight of the catalyst.  Examples illustrate the effects of the alcoholate hydrolysis temperature, the aging time and the quantity of water employed for hydrolysis.  The catalyst may be prepared in pilled, powdered, pelleted or extruded form and is particularly useful for hydroforming, hydrogenation, hydrocracking, cracking, oxidation and in particular for the production of aromatics from naphthenes and for the cyclization-dehydrogenation of paraffins and olefins.