baber/WOPTO huggingface dataset:
Patent GB-961602-A (GB)
Title: Fluid pressure seal
IPC: F15B21/00
Filed: 1962-07-16
Abstract: 961,602. Stuffing-box substitutes. SPERRY RAND CORPORATION. July 16, 1962 [Aug. 16, 1961], No. 27275/62. Heading F2B] In order to prevent leakage of pressure fluid from one to another of a number of passageways, each comprising ducts 26, 90 or 82, 94 terminated in ports 76, 92 or 81, 96 located in adjacent mating surfaces 78, 88 which move relative to each other to selectively align the ports of corresponding ducts of the same passageways for the transmission of the pressure fluid therethrough, the surfaces 78, 88 are interleaved, e.g. as at 101, 106, 102, to provide between the port locations of adjacent passageways a labyrinth passage in which lubricant is injected to form an hydrodynamic film opposing the fluid leakage between the ports of adjacent passageways. The surfaces 78, 88 are respectively formed on a rotary punch drum 10 and a stationary side plate 70 of a card punching apparatus similar to that disclosed in Specification 961,601. Pressurized air is conveyed from a supply source 93 through a selector 91 to the ducts 90, 26 to actuate a number of punches 60 arranged in columns 1, II, III and in longitudinally extending, circumferentially spaced rows around the periphery of the drum. The punches are thereby extended through a card 12 into aligned holes 64 in a rotary die drum 14. The punches are retracted by applying air pressure through the ducts 94, 82, 42, the actuating air being returned to the supply source 93 through ducts 48 and drum passageways 62, 80. In another embodiment, the mating surfaces may be formed on members reciprocating relative to each other and are provided with interleaving straight parallel protrusions.
Patent GB-809970-A (GB)
Title: Improvements in or relating to hall voltage generators
Filed: 1956-09-06
Abstract: 809,970. Semi-conductor devices. SIEMENSSCHUCKERWERKE A.G. Sept. 6, 1956 [Sept. 12, 1955; March 26, 1956], No. 27333/56. Addition to 784,885. Class 37. In a Hall generator according to the parent Specification, the lead from one Hall electrode 6 includes a portion 10 of the same material, e.g. indium arsenide as the Hall element 10. This portion 10 extends as far as the other Hall electrode 7 and compensates for any thermoelectric effect which might arise due to a temperature difference between Hall electrodes 6 and 7. Electrodes 2 and 3 supply the primary current to the Hall element. In a modification (Fig. 2), the element 10 is adapted to operate as a second Hall generator with primary supply terminals 102 and 103 and Hall electrodes 106 and 107. The elements may be connected with the two thermo-electric voltages in opposition and the two Hall voltages in series aiding or series opposition. A thin layer or ceramic or ferritic insulating material may separate the two Hall elements 1 and 10. In a further modification, two additional elements of the same material as the Hall elements are also connected immediately adjacent the generators to provide further compensation for thermo-electric effects if this should be necessary.
Patent GB-1367231-A (GB)
Title: Hair curling iron
IPC: A45D1/04
Filed: 1972-06-12
Abstract: 1367231 Hair curling appliances L'OREAL 12 June 1972 [14 June 1971] 27400/72 Heading A4V A hair curling iron comprises a heat-insulated handle 11, a heating member in the form of a cylindrical tube 12 which is carried by the handle and which contains an electrical heating resistance supplied with electricity by a flex 13, and a sleeve adapted to encircle the cylindrical tube 12, the sleeve being formed in one or more parts and having conical pins regularly distributed over the whole of its external surface. In the embodiment shown the sleeve consists of a stack of annular rings 14; each ring is provided with conical pins 15. The cylindrical tube 12 carries a spacing ring 13a and the stack of rings is fastened to the tube by a nut 16. In the embodiment of Fig. 1 (not shown) the sleeve (4) is in a single piece. The sleeve (4) abuts a shoulder (3a) of the cylindrical tube (2) and is fastened by a nut (6). The sleeve may be made of a flexible material. In use hair wound about the sleeve is retained by the conical pins.
Patent GB-689065-A (GB)
Title: Directly indicating frequency meter
IPC: G01R23/02
Filed: 1950-11-10
Abstract: 689,065. Frequency measurements. LICENTIA PATENT-VERWALTUNGS GES. Nov. 10, 1950 [Dec. 2, 1949], No. 27565/50. Class 37. A directly indicating frequency meter comprises a vibrating body such as a tuning fork tuned to the nominal frequency and excited by a current, the phase position of an alternating current proportional to the deflection of the tuning fork or the velocity of its vibrations being compared with the phase position of the applied voltage or the exciter current. A tuning fork 1 is vibrated by an operating coil 2 and, in the form shown in Fig. 1, carries a coil 4 situated in the field of a permanent magnet 5, so that alternating currents proportional to the velocity of the tuning fork vibrations are induced in the coil 4. The relative phase position of the current induced in the coil 4 is compared with that of the applied voltage in a comparator 3, which thus indicates the frequency of the applied voltage. In a modification the tuning fork varies the impedance of the operating coil. In the construction shown in Fig. 3 the tuning fork 1 is provided with a diaphragm 11 and a mirror 12 so positioned that when the tuning fork is in the position of rest the diaphragm 11 just permits the passage of a ray of light from a light source 8 to a photo-electric cell 9. The photo-electric cell current is passed through an amplifier 10 to the comparator 3 to which the applied voltage is also connected. Instead of the photo-electric cell, a photo-element may be provided and the amplifier omitted. Alternatively the photo-electric cell may be replaced by a light-sensitive resistance consisting, for example of cadmium sulphide. A condenser is connected in series or parallel with the coil 2 to compensate for the reactive power of the exciter current. The tuning-fork may be provided with an air damper, magnetic damper, or liquid damper, which may be so arranged that parallel vibrations of the ends of the tuning fork are also damped.
Patent GB-262236-A (GB)
Title: Improvements in or relating to brakes for vehicles
IPC: F16D51/20
Filed: 1925-11-04
Abstract: 262,236. Dennis Bros., Ltd., and Charles, C. R. Nov. 4, 1925. Energy-absorbing elements; blocks and shoes acting on drums.-Two independently-operated sets of brake shoes 25, 26 are adapted to cooperate with two brake drums 3, 4 secured independently of one another to a carrier 7 which overhangs the drum 14. A flange on the drum 4 is secured to a flange on the carrier 7 by bolts 11 the nuts of which are accommodated in openings in the flange of the drum 3, which is secured to the flange of the carrier 7 by bolts 12 and shouldered spacing pillars 14 passing freely through openings in the flange of the drum 4. The brake drum flanges extend inwardly in the case of an external contracting brake.
Patent GB-687146-A (GB)
Title: Improvements relating to electrodes and to processes for their manufacture
IPC: H05B7/085
Filed: 1949-10-31
Abstract: In the production and use of self-baking electrodes of the Söderburg type, particularly in the electrolytic production of aluminium, wherein a paste comprising a dry substance such as calcined coke or anthracite mixed with a binder containing hydrocarbons such as tar or pitch, is fed to a furnace at temperatures below graphitization temperatures, thereby becoming baked and continuously renewed as it is used, the process is characterized in that the dry substance, before the addition of the binder, is calcined to a predetermined extent such that its reactivity, as hereinafter defined, and that of the coke obtained from the binder reach the same value in that part of the electrode in contact with the molten contents of the bath. Reactivity is defined as log <FORM:0687146/III/1> where a is the rate of flow of carbon dioxide passed into a silica tube containing the coke heated to 950 DEG C and b is the rate of flow of the unreduced carbon dioxide leaving the tube.  The dry substance may be precalcined for a prolonged period at the same temperature as that of the furnace, the reactivity then reaching a substantially constant value, or it may be precalcined at a higher temperature for a shorter time, subsequent heating at the temperature of the furnace during operation having no further effect on the reactivity.  Thus in an aluminium furnace operating at 950 DEG C the dry substance may be precalcined at 950 DEG C for 10 to 20 hours or precalcined at 1100 DEG C for 1/8 -hour, whereafter subsequent baking in the furnace at 950 DEG C leaves the reactivity unchanged.
Patent GB-766484-A (GB)
Title: Improvements in or relating to methods of suspending powders in organic liquids
IPC: G11B5/702
Filed: 1954-09-27
Abstract: A powder, e.g. a paint pigment or a magnetic powder is suspended in an organic liquid by treating said powder with a phosphoric acid derivative having a phosphorus atom bonded directly or via an oxygen atom to one or more alkyl, aryl or aralkyl groups and to a hydroxyl group, and subsequently or simultaneously dispersing the powder in the liquid.  The grinding treatment whereby paint pigments are distributed in a liquid is thereby shortened and the dispersion is more permanent.  Preferred features include the use of aliphatic or aromatic phosphoric acid derivatives with aliphatic or aromatic liquids respectively; of derivatives having an organic group with at least 4 carbon atoms per molecule, or, when powders readily reacting with acids, such as many metals, basic oxides, sulphides and salts of a weak acid and a strong base, are used, of phosphoric acid derivatives having two hyroxyl groups per molecule; of the use of 5 to 25 mgms. of the phosphoric acid derivative per gram of powder, although 2 mgms. per gram of powder produce a noticeable effect.  In the examples (1) mono-styrene phosphonic acid was added to Fe2O3 and benzene in a ball mill and ground therewith, (2) mono-and di-butyl orthophosphoric acids were dissolved in methyl-ethyl ketone and Fe2O3 dispersed therein, (3) TiO2 was dispersed in benzene containing mono-cardanyl phosphoric acid, (4) Cr2O3 was dispersed in methyl-ethyl ketone containing mono-cardanyl phosphoric acid, (5) Cr2O3 powder was ground with polyvinylchloride and amylacetate-acetone and dicresyl phosphoric acid added thereto, (6) Fe2O3 powder was suspended in vinylchloride - vinylacetate co - polymer and added to acetone and benzene, and dicresyl-orthophosphoric acid mixed therewith.  In addition to the dispersing agents exemplified the mono- and di-esters of orthophosphoric acid with butanol-1, butanol-2, isobutanol-1, n-pentanol-1, n-hexanol-1, 2-ethylhexanol-1, decanol-1, phenol, cresol (o, m and p), xylenols and cardanol together with hexane and styrene phosphonic acids and dihexane and distyrene phosphinic acids are mentioned, and other solvents referred to are petrol, paraffin oil, toluene and xylene.
Patent GB-398037-A (GB)
Title: Improvements in process of and apparatus for producing highly combustible gaseous fuel from liquid hydrocarbons
IPC: C10J1/26
Filed: 1932-10-06
Abstract: 398,037. Oil gas. ROSIER, C. A., 1004, St. Nicholas Avenue, New York, U.S.A. Oct. 6, 1932, No. 27854. [Class 55 (ii).] A gaseous fuel is obtained from oil and air or steam by separately heating the oil so as to vaporize and gasefy it in the presence of a catalyst, the air or steam being separately heated and then mixed with the gasefied oil while in a heated state. Liquid fuel is fed under pressure through valve 22 into a compartment 17 communicating through holes 19b with an upper compartment 18 in which expansion takes place, and leading by pipe 15 and valve 29 to a mixing chamber 31. The tubular baffle 19 is made of nickel, platinum, palladium, copper, or brass, and acts catalytically on the oil vapour. The air or steam under pressure enters a jacket 36 by a pipe 35 and passes by a pipe 32 to the mixing chamber 31. Heat is supplied electrically by a heating element 40 supported in an extension 14a by an insulated base 43, the air being preheated, and the oil vaporized before reaching the mixing chamber 31. The gaseous mixture passes through an elongated nozzle 39 and passages 39a into the intake pipe 10 which may lead to an internal-combustion engine. An automatic valve R prevents back flow due to fluctuation of the load.
Patent GB-163358-A (GB)
Title: Improvements in vibration absorbing devices for vehicle axles
IPC: B60G3/01
Filed: 1919-11-11
Abstract: 163,358. Andrade, J. S. Nov. 11, 1919. Springs, arrangement of.--A stub axle b<1> for the steering-wheels of a motor or other vehicle is carried by a member b which slides in a housing a pivoted on the spindle a<2> mounted in the forked end of the axle, resilient means being interposed between the top of the member b and the top of the housing a. In the arrangement shown, the resilient means comprises springs a<7> mounted on bolts a<6> which are secured to the housing and also form guides for the member b. Pneumatic devices or leaf springs may be substituted for the springs a<7>. The lug for the steering-arm is shown at a<3>.
Patent GB-1047009-A (GB)
Title: A process for the manufacture of oxazoles
IPC: C07D263/42
Filed: 1965-07-02
Abstract: A process for the preparation of 4-methyl-5-(lower alkoxy)-oxazoles of the formula <F\1> wherein R and R1 are alkyl groups of 1-7 C atoms, comprises converting an N-acyl-alanine ester <F\2> or the corresponding imino ether <F\3> wherein R and R1 are as defined above, and R2 is a hydrocarbon group, to a BF3 adduct and dehydrating said adduct.  Such adducts are claimed per se.  The reaction is best performed by passing gaseous BF3 or an etherate thereof into a solution of the N-acyl-alanine compound in an inert solvent. Suitable dehydrating agents include P2O5, PCl5, PCl3, POCl3 and SOCl2.  When P2O5 is used, H3PO4 will be liberated and forms a salt with the oxazole product; the free base is liberated by treatment with alkali.
Patent GB-782736-A (GB)
Title: Method of and apparatus for froth flotation
IPC: B03D1/16
Filed: 1953-10-13
Abstract: 782,736. Froth flotation. BERGWERKSVERBAND ZUR VERWERTUNG VON SCHULTZRECHTEN DER KOHLENTECHNIK GES. Oct. 13, 1953 [Oct. 27, 1952], No. 28135/53. Class 82(2) In a froth flotation apparatus the impeller works between opposed plate-like members having their peripheral portions dished towards each other to form a peripheral slit of less width than the impeller, the pulp and air being admitted to the impeller along its axis. The impeller 2 is mounted on a shaft 1. Plates 3 and 4 coact to form a peripheral slit 5 through which the pulp is expelled. An inlet funnel 6 or connection 7 are alternatively used for pulp input. In a modified form (not shown) the impeller is driven from below.
Patent GB-599414-A (GB)
Title: An improved rotatable machine for filling containers by suction
IPC: B67C3/16
Filed: 1945-10-25
Abstract: 599,414. Bottling-apparatus. HANNOVER, H. Oct. 25, 1945, No. 28171. Convention date, July 26, 1944. [Class 125 (ii)] In a rotatable machine for filling containers by suction, of the type in which a vacuum tank is mounted above a liquid supply vessel on the revolving part of the machine, whereby the vacuum tank and the supply vessel are both connected to each filling nozzle of the machine, the said vacuum tank is shaped as a ring surrounding the axis of rotation of the machine. As shown, a vertical shaft 2, rotated by driving shaft 33, carries a support 3 for a table 4 carrying bottle rests 5, a liquid supply vessel 7 and an annular vacuum tank 13 mounted on pillars 12. Filling heads 11 are connected to vessel 7 by filling tubes 10 and to tank 13 by vertical vacuum tubes 14. A vacuum pump 15 is carried by support 3 and is connected to tank 13 by a suction tube 16 which is screened from nearby vacuum tubes 14 by a splash screen 17 mounted beneath a lid 18 secured to tank 13 by clips 19. The bottom of tank 13 slopes down to a return tube 20 communicating with vessel 7, the bottom of which also slopes to an emptying tube 21. Liquid is supplied through a stationary tube 8 resting on a bearing in the bottom of vessel 7 and supplied with a float-valve 9 which keeps a constant liquid level in vessel 7, liquid also being maintained at a definite level in tank 13 by means of the vacuum induced by pump 15. When a bottle 6 is raised in known manner into engagement with a filling head 11, the air in the bottle is sucked out through tube 14 and replaced by liquid through tube 10 until the bottle is filled. When the bottle is removed, liquid in tube 14 is sucked up into tank 13.
Patent GB-669675-A (GB)
Title: Improvements relating to apparatus for the electrolytic prevention of corrosion of metallic underground structures
IPC: C23F13/04
Filed: 1949-11-03
Abstract: 669,675. Protective arrangements. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., STEVENS, S. A., and WATSON, T. F. E. Sept. 12, 1950 [Nov. 3, 1949], No. 28182/49. Class 38 (iv). In a system for the electrolytic prevention of corrosion of a buried pipe 1, or the like, of the kind in which a D.C. potential is maintained between the pipe and a buried electrode 2, the potential is obtained from A.C. mains 11 over a transformer 9 and full-wave rectifier 4 and is regulated by a D.C.-controlled reactor 12 having its A.C. windings 13 in the primary circuit of the transformer. Current for the control windings 14 of the reactor is obtained, over a full-wave rectifier 17 and transformer 21, from the mains 11 through an adjustable autotransformer 22. The reactor 12 causes the current flow between the pipe and electrode to be largely independent of the soil resistance. A swamp resistance may be associated with the transformer 21 or the reactor winding 14 to reduce the effect of temperature variations on the current strength in the control circuit.
Patent GB-1340415-A (GB)
Title: Connector for multi-conductor cable
IPC: H01R12/70
Filed: 1971-06-16
Abstract: 1340415 Two-part couplings MALCO MFG CO Inc 16 June 1971 [17 Aug 1970] 28327/71 Heading H2E [Also in Division H1] A connecting assembly for a flat cable having conductors and a grounding shield embedded in an insulating matrix comprises a housing which encloses crimped contact elements 32, the housing having teeth 80 which pass through holes 30 in the matrix 20 and slots 46 in an insulating card 45 which separates the contacts 32 from the grounding shield 26a. The lower half of the matrix is stripped back and teeth 39 pierce the upper half and grasp the conductors 25a. The housing comprises a nest 51 and cover 52 of insulating phenolic material which may be stuck together and ultrasonically welded at places. Flared openings 70, 78 permit terminal pins to be inserted into the housing.
Patent GB-402722-A (GB)
Title: Improvements in devices for receiving and collapsing collapsible refill containers for paste-like or liquid products in order to expel their contents
IPC: A46B11/00
Filed: 1932-06-09
Abstract: 402,722. Piston apparatus for discharging receptacles. CALDERARA, M., 47, Avenue de Brimont, Chatou, Seine-et-Oise, Franco. June 9, 1932, No. 28339/33, Divided on 402,819, [Group XV]. [Class 102 (ii).] A holder for a collapsable container a for pasty or liquid substances comprises a cylindrical body part b adapted to receive the container and formed with a closed bottom b<2> a plunger c<1> slidably disposed within the body part, a lever c<4> carried by the plunger and a spring c<5> adapted to hold the lower end of it in engagement with the interior wall of the body part, and a rod c<6> slidable in an aperture in the plunger and free to rise in a groove b3 in the wall of the body part, the rod being operated by a button c<3> to exert pressure on the lever causing it to turn about the lower end as a fulcrum and to raise the plunger, the lever being caused to climb within the body by alternately pressing and releasing the button c<3>. The upper part bl is provided with a nozzle b<4> shown as adapted to apply soap to the bristles b<5> of a shaving brush ; in other constructions the holder is provided with a hinged closure cap. The device is stated to be applicable also to grease guns and injection syringes.
Patent GB-1035398-A (GB)
Title: Strain gauges
IPC: G01L1/22
Filed: 1964-07-09
Abstract: 1,035,398. Strain gauges. HITACHI SEISAKUSHO KABUSHIKI KAISHA. July 9, 1964 [July 13, 1963], No. 28344/64. Heading H1K. [Also in Division G1] A strain gauge consists of a wire or foil of either a binary alloy of platinum and osmium or a ternary alloy of platinum, osmium and rhodium. The backing for the wire or foil may be paper, paper impregnated with phenolformaldehyde, or polyester sheet.
Patent GB-358698-A (GB)
Title: Improvements in water heaters or steam boilers
IPC: F24H1/20
Filed: 1930-09-23
Abstract: 358,698. Indirectlyheated steam boilers. FOUNTAIN, H. J., 84, Addison Way, Golders Green, London. Sept. 23, 1930, No. 28406. [Class 123 (ii).] A boiler is heated by exhaust gases or steam circulated through an inner shell B fitted with cross tubes or inwardly projecting thimble tubes E, and by electric immersion heaters G. The heating gases or steam pass downwards over the tubes and escape through a tubular baffle D.
Patent GB-285095-A (GB)
Abstract: 285,095. Consortium f³r Elektrochemische Industrie Ges. Feb. 12, 1927, [Convention date]. Vinyl esters.-In the manufacture of esters of vinyl alcohol by passing a mixture of acetylene and the carboxylic acid over a heated catalyst the yield is increased, undesired secondary reactions are suppressed, and the life of the catalyst is prolonged by passing the mixture so quickly that the quantity of the components passed over the catalyst is greater than the quantity entering into reaction. Preferably more than 1 volume of acetylene to 1 volume of acid vapour is used, and the mixture is preheated to about or even above the reaction temperature of 210-250‹ C. Catalysts specified are acetate or other salts of zinc or cadmium, preferably carried by powerful adsorbents, e.g. silica gel, wood charcoal, or " Bayer-Kohle " or other highly-active carbon. In an example, a mixture of 4-5 cubic metres of purified acetylene with 5 kilograms of acetic acid vapour is preheated to 220-250‹ C. and passed each hour into a reaction chamber containing 7 litres of active carbon impregnated with about 1 kilogram of zinc acetate and maintained at 210-220‹ C. which is raised slowly through some weeks to about 250‹ C. The issuing mixture gives a condensate containing 13-16 per cent of vinyl acetate. The acetate is separated from acetic acid, acetaldehyde, and ethylidene diacetate by fractional distillation, the residue being returned to the process. The excess of acetylene is circuited to the acetic acid evaporator. An output of 0.5-0.7 kilograms of vinyl acetate per hour is maintained for several weeks. Specification 182,112 is referred to.
Patent GB-879156-A (GB)
Title: Tool joint for drill pipe sections
IPC: E21B17/10
Filed: 1959-08-20
Abstract: 879,156. Pipe couplings. HUGHES TOOL CO. Aug. 20, 1959 [Sept. 5, 1958], No. 28530/59. Class 99(1). A wear resistant tool joint member 1 for connecting drill pipe sections is provided with a square end shoulder 4 and a plurality of bands of wear resistant material which is bonded to the member, a plurality of recesses 11 in the shoulder 4 extending axially of the member to the outermost of the bands and being filled with wear resistant material integrally connected with the wear resistant material in the outermost band. As shown, the member 1 is screw-threaded at one end 2 for attachment to the pin end of a mating joint member and is secured at the other end 3 of reduced cross-section to a section of drill pipe. The surface of the member 1 is provided with circumferential grooves 5, 6, 7, 8 with intervening lands 9 one or more axial groves 10 being provided to interconnect the circumferential grooves. The grooves are filled with wear resistant material which is bonded to the wear resistant material provided in the recesses 11. The recesses 11 may be in alignment with or angularly displaced from the grooves 10.