baber/WOPTO huggingface dataset:
Patent GB-885791-A (GB)
Title: Dispensing apparatus for beer or other beverages
Inventor: GRETTON-LOWE REGINALD
IPC: B67D1/08
Filed: 1959-08-18
Abstract: 885,791. Reciprocating pumps. GASKELL & CHAMBERS Ltd. Aug. 9, 1960 [Aug. 18, 1959], No. 28148/59. Class 102(1). Waste beer from a tray 4 is collected in a float chamber 6 connected to an adjacent mixing valve 1 and having a vent pipe 7 opening above the highest attainable liquid level in the apparatus. Specification 802,691 is referred to.
Patent GB-785659-A (GB)
Title: Method of purifying benzene
IPC: B01J19/12
Filed: 1955-10-03
Abstract: Contaminants are removed from benzene by bringing a controlled amount of free chlorine into contact with it, promoting chlorination of the impurities by irradiation with ultra-violet light, then extracting it with aqueous alkali, decanting the benzene from the water, and distilling the benzene while maintaining the hydrocarbon free from contact with iron at least until substantially all the free chlorine has reacted and maintaining the benzene after extraction free from contact with iron compounds until distilled.  It is essential that the step of alkaline extraction includes introducing the chlorinated irradiated benzene into the chamber of a multi-stage contactor in one direction and introducing water thereinto in the other direction in a volume of benzene to water of 0.5 to 4.0, maintaining the pH of the water from 7 to 12 and the temperature from 40-80 DEG  C., thereby hydrolysing the unstable chlorinated contaminants in the benzene into thermally stable compounds which remain as bottoms on distillation of the benzene and <PICT:0785659/IV (a)/1> maintaining a continuous water-phase at the end of the chamber at which the benzene enters and a continuous benzene phased the end at which the water enters. Preferably the benzene is obtained from coke-oven light oil which contains as contaminants thiophene, carbon disulphide, cyclohexene and paraffins or naphthenes.  In a preferred embodiment, industrial-grade benzene is fed from a tank 10 to the top of a column 12 packed with glass, stoneware or other non-metallic material at a temperature of 20-40 DEG  C.  Gaseous chlorine is supplied through a diffuser 15, in an amount of about 0.5 to 2.0 per cent of the weight of the benzene.  Hydrogen chloride is formed and is dissolved in the benzene or removed in a scrubber 16.  The benzene then passes to a double-walled chamber 19 where it is irradiated at 25-75 DEG  C. with ultra-violet rays of 3000-4500 angstroms for 2-5 minutes, after which the benzene passes to a packed column 27 through which passes alkaline wash water at 40-80 DEG  C.  The benzene passes to settling tank 29 and is distilled in column 31 to give a dry product free from thiophene, carbon disulphide and olefines.
Patent GB-661184-A (GB)
Title: Manufacture of poly-acetals
Filed: 1948-10-30
Abstract: Polyacetals having the general formula C2H5O[CH(CH3).O]n-C2H5 where n is a numeral higher than 1, in particular 2 and 3, are prepared by interacting a mixture of acetal and acetaldehyde at a temperature between +20 DEG  C. and -50 DEG  C. by addition of a catalytic amount of an acid substance.  There may be added as acid substances hydrogen halogenides, for example hydrochloric acid and hydrobromic acid, sulphuric acid and mono-alkylated sulphuric acids such as methyl hydrogen sulphate.  A trace of the acid substance is sufficient at reaction temperatures above 0 DEG  C; at lower temperatures, there may be added 0.5 to as little as 0.001 mole per cent based on whichever reacting component of the initial reaction mixture is present in the smaller quantity.  The acid substance may be used diluted in an alcohol or inert organic solvent, e.g. diethyl ether, methanol or ethanol.  The molar ratio of acetal to acetaldehyde may vary widely, e.g. from 2 : 1 to 1 : 6.  The 2 : 1 ratio favours di-acetal formation; predominance of acetaldehyde and use of temperatures between -10 DEG  and -50 DEG  C. favour formation of polyacetals higher than tri-acetal.  The polyacetals may be used as froth flotation agents and organic intermediates.  Examples describe the preparation of di-, tri- and higher polyacetals by the addition of various previously mentioned acid substances to cooled mixtures of acetal and acetaldehyde at temperatures of from -45 DEG  C. to +15 DEG  C.  The products are recovered from unreacted material and small amounts of metaldehyde and paraldehyde by neutralization and fractional distillation.  It is stated that increasing quantities of auto-condensation products of acetaldehyde form at -50 DEG  C. and lower.ALSO:Polyacetals for use as froth flotation reagents have the general formula C2H5O.[-CH(CH3)-O]-n-C2H5 wherein n is a numeral greater than 1, in particular 2 and 3, and are prepared by interacting a mixture of acetal and acetaldehyde at a temperature between +20 DEG  and -50 DEG C. by addition of an acid substance (see Group IVb).
Patent GB-1045810-A (GB)
Title: Refrigerator equipped with an electrothermal refrigerating unit
IPC: F25D11/00
Filed: 1964-07-08
Abstract: 1,045,810. Refrigerators. SIEMENS-ELECTROGERATE A.G. July 8, 1964 [July 15, 1963], No. 28237/64. Heading F4H. In a refrigerator of the type having thermoelectric units 11, 12 in its walls with the hot junctions in thermal contact with the outer casing 3, some or all of the walls of the outer casing are covered by wall members 22 which are spaced from and thermally connected with the casing 3 to increase heat dissipation therefrom. Air inlet openings 25 are provided in the lower parts of members 22 and bridge pieces 24 joining the upper edges of casing 3 and members 22 are provided with outlet openings 26. Blocks 23 of aluminium are disposed between casing 3 and members 22 at the location of the units 11, 12. Each of members 22 may be replaced by a plurality of spaced sheets (Fig. 4a, not shown) and the blocks 23 may extend across the full width of the refrigerator, in which case they are perforated to allow air flow therethrough.
Patent GB-1197837-A (GB)
Title: Container, more particularly for Food Products, including a Musical Wind Instrument.
Inventor: MELIGA LUIGINO
IPC: A63H5/00
Filed: 1968-06-13
Abstract: 1,197,837. Musical ice cream cone. LUIGIN0 MELIGA. 13 June, 1968 [12 Oct., 1967], No. 28276/68. Heading A6S. An ice cream container 1 has a whistle 3 or a clarinet or trumpet mouthpiece integrally formed or releasably attached to its base (1a). The whistle has at least one lateral vent hole 11 and is protected by a cap 4 when not in use.
Patent GB-851912-A (GB)
Title: Thread tensioner
IPC: B65H59/24
Filed: 1957-09-09
Abstract: 851,912. Knitting-machines. STEINHOF, K., [trading as KARL STEINHOF APPARATEFABRIK, [Firm of]]. Sept. 9, 1957 [Sept. 17, 1956], No. 28345/57. Class 74 (2). A yarn tensioning device for a hand-operated machine comprises two plates 4, 13 between which the yarn passes to an eye 28 on the end of a spring arm 25. The plate 13 is pressed against the yarn and the other plate 4 by a spring 19 to restrict the passage of the yarn thereby causing tension to be imposed in it as it passes to the machine. A tail 26 of the arm 25 engages the spring 19 and in the event of undue tension whereby the arm is pulled down, the tail urges the spring 19 away from the plate 13 so that the restriction to the passage of yarn is partly or wholly removed. To assist in guiding the yarn between the plates, the plate 13 is slightly concaved throughout its length so as to provide a shallow channel through which the yarn passes, and the upper portion of the plate 4, which is bent back on itself, as is also the bottom portion to enable it to be clipped on to the casing of the device as shown at 3, is provided with two upturned edges 8. The bottom of the casing is slotted to enable a yarn to be inserted and one side wall is recessed to enable the yarn to be engaged between the plates.
Patent GB-533239-A (GB)
Title: Improvements relating to metal lithographic printing sheets
IPC: B41N1/08
Filed: 1939-10-20
Abstract: 533,239. Printing surface. KALAMAZOOPRINT, Ltd., and IMPEY, F. L. Oct. 20, 1939, No. 28356. Drawings to Specification. [Class 100 (ii)] One edge or a pair of opposite edges of a thin aluminium or other metal lithographic printing plate, which are engaged by the clips which strain the plate round a printing cylinder, is softened by annealing so that the risk of fracture of these edges due to repeated folding and unfolding is minimized. The annealing may be effected by passing the edge or edges through a flame.
Patent GB-603658-A (GB)
Title: Hydraulic jack
IPC: B66F3/25
Filed: 1945-10-26
Abstract: 603,658. Hydraulic jacks. PAGE, H. E. Oct. 26, 1945, No. 28368. Convention date, Oct. 27, 1944. [Class 78 (iii)] A hydraulic jack, adapted for rapid engagement with the load, comprises a pump piston 10 reciprocable in a bore 6 which extends into a coaxial work cylinder 7 with a load piston 11; an auxiliary piston 12 secured to the piston 11 works in an extension of the bore 6, and a spring-controlled check valve 60 controls a passageway extending from the space 15 between the pump and auxiliary pistons to the work cylinder. Upon commencing to reciprocate the. pump piston 10 by its operating handle 20, the check valve 60 being seated, fluid in the space 15 acts on the auxiliary piston 12 to move the load piston 11 rapidly outwards. When the load is taken up, the pressure in the space 15 rises and unseats the check valve 60 so that the fluid then passes to the work cylinder 7 and acts directly on the piston 11 to lift the load. Fluid is admitted to the pump bore 15 from a reservoir R by way of a spring- loaded valve 40 which normally seats on the lower end of a sleeve 30 mounted to slide in an extension of the bore accommodating the valve. A similar valve seating on a sleeve 31 controls communication between the work cylinder and reservoir. Both sleeves are held down in operative engagement with the valves, and against springs 38, 48, by a plate 77 loaded by a spring 78. To lower the load, the plate 77 is retracted through linkage 70, 83, so allowing the sleeves to be unseated from their valves under the action of their springs 38, 48, and the fluid to return from bore 6 and cylinder 7 to the reservoir. The plate 77 is also retracted to release the pressure at the limit of outward movement of the load piston, this being effected by a finger 92 on the lifting lever rocking a lever 90 also connected with the plate. Outward movement is, however, normally limited by a stop 87.
Patent GB-990349-A (GB)
Title: Improved method of hydrogenolysis of sugars
Filed: 1963-07-18
Abstract: A continuous process for the hydrogenolysis of a reducible sugar comprises reacting a carbohydrate hydrogenolysis process residue depleted of a glycerol and glycols with hydrogen at an elevated temperature in the presence of a cracking additive and a hydrogenation catalyst to form a first hydrogenolysis product, mixing this product with a feed of reducible sugar and reacting the mixture with hydrogen at an elevated temperature in the presence of a cracking additive and a hydrogenation catalyst to form a second hydrogenolysis product, and separating glycerin and glycols from the latter product leaving another hydrogenolysis porous residue.  The preferred catalyst is nickel promoted by iron.  Suitable cracking additives are, for example, calcium oxide, calcium hydroxide, calcium carbonate or salts of calcium and weak acids.  Specification 721,260 is referred to.
Patent GB-685888-A (GB)
Title: Improved variable pitch propeller
IPC: B64C11/34
Filed: 1950-11-22
Abstract: 685,888. Variable-pitch propellers. LAGREVOL, M. DE, and LABOUREIX, R. Nov. 22, 1950. [Nov. 29, 1949 ; Feb. 14, 1950] No. 28516/50. Class 114. The blade roots have weights 32 on arms 31 which produce by centrifugal force a torque lending to increase blade pitch, acting against a spring 15 contained in a sleeve 2. This sleeve is provided with a shoulder 12 which can engage the side face of weights 6 moving radially outward against springs, so locking the device against pitch decrease. The link connecting the blade root and the sliding sleeve 2 is adjustable in length and its rear end is situated behind the blade axis to give a substantially constant torque from the spring.
Patent GB-776559-A (GB)
Title: Improvements in or relating to hydraulic timing mechanism for use in cooking eggs
IPC: A47J29/04
Filed: 1954-10-05
Abstract: 776,559. Timing egg-cooking. HEATON, H Dec. 30, 1955 [Oct. 5, 1954], No. 28579/54. Class 28(1) A timing device for removing eggs from boiling water when cooked, comprises a pivoted assembly consisting of upper and lower water chambers 17, 21 in communication through a valve controled aperture 22, means whereby water may be supplied to the upper chamber, which has egg carryinig means 35 for immersion in pan R, draining means 40, 41 for the lower chamber, a catch for holding the assembly in operative position, Fig. 1, catch releasing trip mechanism operable by a hollow float 38 in the lower chamber, and means on the upper chamber for indicating the setting of the valve. The upper chamber or reservoir 17 has a closed end 18 to which is attached egg carrier 35 and an open end closed by a cap 19 carrying a pipe 36 having a tundish 37 at its end. An internally screw-threaded boss 23 on top of reservoir 17 receives a threaded valve stem 24 whose lower end is coned to form a part 25 which normally closes aperture 22. The upper end of stem 24 has a knurled head 26 with a pointer 27 which is moved over an indicator 28 as aperture 22 is opened and closed. A rod 29 slidably mounted in a bore in stem 24 is supported on head 26 by a shoulder 29a and extends downwardly into the lower chamber 21. The lower chamber is drained through an aperture 40 normally closed by a mushroom valve 41 having a stalk 41a by which it is opened. A boss 30 on top of reservoir 17 is pivoted, with distance pieces 32, 33 to centralize it, on a pin 31 whose ends are fitted into arms 14, 15 formed at the tops of posts 12, 13 supported on a foot 11. The tops of arms 14, 15 are connected by a crossbar 16 to which is secured a slotted arm 43 pivoted to a bell crank lever 45 having, at its ends a detent 47 and toe piece 48 respectively. A. vertical pillar 49 mounted on top of reservoir 17 has a detent 50 to engage toe piece 48'while a stirrup 51 pivoted to arm 43 engages detent 47. A rod 53 may be attached to cap 19 to receive balance-weights 55, Fig. 2, not shown. In operation, water is poured into the reservoir 17, the valve inlet 22 is adjusted, an egg is placed in cradle 35 and the water chamber assembly is tilted so as to immerse the egg in a receptacle of boiling water. The assembly is held in operative position until water draining from reservoir 17 into the lower chamber has raised the float 38 to release the trip mechanism.
Patent GB-135491-A (GB)
Title: Exhaust Box or Silencer.
Inventor: SCHNEEBELI HUGO
IPC: F01N3/05
Filed: 1919-11-18
Abstract: 135,491. Schneebeli, H. Nov. 18, 1918, [Convention date]. Exhaust-silencers.-A silencer suitable for aeroplane engines is arranged to prevent the emission of flame. The exhaust enters the silencer pipe a through an injector nozzle c, and draws in air through a perforated chimber d and perforations in the wall of the silencer, so that any unburnt gases are ignited. Along the wall of the silencer are series of perforations a<2> leading to longitudinal hollow gills e with perforations through which the exhaust can escape without the passage of flame. The perforations in the gills e and the chamber d are formed by cutting out and bending tongues e<1>, d'. At the end of the silencer, the gases escape through perofrations a<3> to longitudinal tubes f, which project beyond the conical end a<5> and are flattened at the ends to assist cooling. In a modification, the gills e are replaced by a doubleconical chamber similar to d. In another form, Fig. 10, an injector c<2> is inserted in each exhaust branch g from the engine. If the silencer is subject to vibrations different from those of the engine, the air-inlet chamber d may be in two conical halves, Fig. 11, one fixed to the exhaust pipe b and the other to the silencer a, the halves being in engagement by means of spherical surfaces d<3>, d<4>.
Patent GB-948660-A (GB)
Title: Improvements in or relating to apparatus for threading needles
IPC: D05B87/02
Filed: 1961-08-08
Abstract: 948,660. Needle threaders. G. E. SADLER. Aug. 8,1962 [Aug. 8, 1961], No. 28642/61. Heading D1G. A needle threader comprises a tubular needle holder closed at one end and having thereat a transverse bore positioned to be aligned with the eye of a needle inserted in the holder, a thread support adjacent the outer side of the needle holder beside said transverse bore, and an operating member which is pivotally mounted on a body portion and which has a portion protruding from the body portion and an arcuate arm adapted to move across said thread support and through said bore and the eye of the needle. A tubular needle holder 21 has a flared outer end 23 and a closed inner end. A bore 28, formed transversely in the holder adjacent the inner end, is positioned to be aligned with the eye 29 of a needle 24 inserted in the holder. A thread supported on a shoulder 31 adjacent the bore 28 is pushed through the latter and through the needle eye by an arcuate blade 27 carried on one arm 25 of a plate 18 pivoted at 19 within an upstanding post 14. Another arm 26 projects from the latter and carries a platform 32 which may be depressed to swing plate 18 against the bias of a spring 34.
Patent GB-1156096-A (GB)
Title: Signal Sampling Circuit.
IPC: H03G1/00
Filed: 1967-06-22
Abstract: 1,156,096. Non-linear circuits. INTERNATIONAL BUSINESS MACHINES CORP. 22 June, 1967 [15 July, 1966], No. 28795/67. Heading G4G. [Also in Division H4] In a known arrangement (Fig. 1), for sampling a recurrent waveform (e.g. an arrangement for sampling successive cycles of a waveform of relatively high recurrence frequency to produce a replica thereof at a much lower recurrent frequency for application to a cathode-ray tube oscilloscope or to an analogue-to-digital converter and measuring circuit), a non-linear circuit, Fig. 4, having the characteristic shown in Fig. 5, is inserted between the points A, B (Fig. 1), to provide variable dynamic gain expansion in the sampler amplifier circuit. The signals in the latter circuit comprise the difference between the momentary value of a sample supplied to capacitor 8 and the value of the sample previously stored in the memory and fed-back to capacitor 8 via resistor 18 the level of the feed-hack being normally arranged to bring the level across capacitor 8 to that value (the real level of the sample) which it would have if sufficient time was available for capacitor 8 to charge fully. When, however, a significant change occurs in the amplitude of the recurrent waveform being sampled the arrangement, as modified by the addition of the circuit of Fig. 4, operates to increase the gain initially, when the difference signal has a maximum value, so that the latter rapidly approaches its correct value (e.g. from - E to T, Fig. 5) after which the gain is reduced as the difference signal approaches a low value (e.g. - e, Fig. 5) which reduces to zero. By thus reducing the magnitude of the feed-back signal (the difference signal) as the level of the stored sample approaches its true value errors due to system noise and time and amplitude jitter in the input signal are reduced. In the operation of the present invention the sampling, instead of being effected at progressively later time positions on successive cycles of the recurrent waveform, is effected at the same time position during a sampling period and then progressively shifted to later time positions on successive cycles of the recurrent waveform, is effected at the same time position during a sampling period and then progressively shifted to later time positions during successive sampling periods as shown in respect of periods I, II and III, Fig. 3. It is stated that for a given degree of accuracy only 5 to 10 samples for a given point on the recurrent waveform are necessary as compared to 50 or more with a conventional system.
Patent GB-913847-A (GB)
Title: Storage and conveying apparatus
IPC: A47B63/06
Filed: 1959-08-24
Abstract: 913,847. Filing papers. TITCOMBE, C. S. Nov. 14, 1960 [Aug. 24, 1959], No. 28819/59. Addition to 845,774. Class 146 (1). [Also in Group XXX] An endless conveyer filing device according to the parent Specification comprising a pair of spaced endless chains 7, 9 passing around pairs of spaced coaxial chain wheels 6, 8 and carrying a plurality of horizontalspaced spindles 12, a plurality of trays 14 attached to the spindles and a guide chain 19 co-operating with radial extensions 23 of the spindles to maintain the trays horizontal or in another predetermined angular position, is modified in that the guide chain 19 passes around chain wheels 20 and the chain wheels 8 are mounted on a framework 11 carried from a wall 3b of the housing and lying wholly within the path traversed by the spindles 12.
Patent GB-432183-A (GB)
Title: Electric heating apparatus
IPC: F24C7/06
Filed: 1933-10-18
Abstract: 432,183. Electric stoves and hot-plates. POELVOORDE, A. VAN, 7, Rue de Bastion, Ixelles, Brussels. Oct. 18, 1933, No. 28828. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 5, 1935]. Application for addition to 432,182. [Class 39 (iii)] A heating resistance of large cross-section and short length for use with a reflector, as described in the parent Specification, is formed of cylindrical, conical, or helicoidal shape ; and the current may be supplied by accumulators located within the base of the stand. A cooking stove comprises a casing 15 with a hot-plate 16 arranged above the reflector 18 to form a closed heating-chamber 19. The resistance 20 is connected to the secondary winding 25 of a transformer located in the lower part of the casing. The reflector, which is of polished sheet metal, striped or otherwise, may be dispensed with.
Patent GB-789700-A (GB)
Title: A method for chemically pulverizing solid material
Inventor: TAKAHASHI RINTARO
IPC: B22F9/00
Filed: 1955-10-10
Abstract: Solid or compacted materials are disintegrated by forming within the materials, or impregnating the materials with a substance which substantially increases in volume on taking up water of crystallization and then treating the materials with water to create internal stresses and to cause disintegration of the materials. Examples are given of the treatment of compact and unglazed pottery or concrete by immersion in fused calcium chloride, disintegration being then effected by leaving the material in moist air or in water, of the treatment of hard alloys e.g. of the tungsten carbide-cobalt type with chlorine at 800-850 DEG C. followed by quenching in water, and of the treatment of such a hard alloy with sulphur at about 500 DEG C. to form cobalt sulphate followed by immersion in water to form hydrated cobalt sulphate which by increasing in volume causes disintegration of the alloy.  Hard alloy constituents recovered in this way may be reused in the production of further hard alloy compositions.
Patent GB-190318-A (GB)
Title: Improvements in leak-tight joints for pipes and the like
IPC: F16L17/04
Filed: 1921-10-31
Abstract: 190,318. Shaw, H. S. Hole-, Tribe, E., and Victory Pipe Joint Co., Ltd. Oct. 31,1921. Cup-leather sleeve joints.-The elasticity of the inturned edges 23, 24, of a leak-proof ring 20 of the type described in Specification 149,381 for jointing pipes &c. is obtained or enhanced by springs 25 embedded in said inturned edges. The springs 25, which, if the ring 20 is of rubber, may be inserted before vulcanization, may be coiled springs or may be of a zig-zag formation, Fig. 2, in which case the inner end of the ring is of smaller diameter than the outer end.