baber/WOPTO huggingface dataset:
Patent GB-545838-A (GB)
Title: Improvements in or relating to the vulcanisation of rubber
IPC: C08K5/00
Filed: 1940-12-13
Abstract: 545,838. Vulcanization accelerators. DU PONT DE NEMOURS & CO., E. I. Dec. 13, 1940, No. 17647. Convention date, Dec. 15, 1939. [Class 70] A primary accelerator consisting of 2- mercaptothiazoline or a thiazoline ring carbon substituted alkyl and/or hydroxyalkyl derivative thereof is used along with a secondary accelerator consisting of an aldehyde-amine, arylguanidine or thiuram sulphide, e.g. butyraldehyde-aniline, known as "Accelerator 808," butyraldehyde butylamine, anhydroformaldehyde-p-toluidine, methylene dianilide di-otolyguanidine, diphenylguanidine or its phthalate or tartrate or zinc chloride addition product triphenylguanidine and tetramethylthiuram mono- and di-sulphide. A list of mercaptothiazoline derivatives which may be used is given.
Patent GB-145574-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M7/26
Filed: 1920-06-29
Abstract: 145,574. Stromberg Motor Devices Co., (Assignees of Gustafson, C. J.). Feb. 11, 1918, [Convention date]. Spray carburettors.-A fuel nozzle 31 opening into a Venturi tube 12 within the main Venturi 11 receives its normal fuel supply from a well 18 through a tube 22 having a restricted orifice 24, and an additional supply for acceleration from an annular well 17, both supplies being aerated. The normal supply is aerated bv way of a passage 61, an annular passage 60, and a passage 63, the inlet 62 to the passage 61 being situated in the carburettor casing 1 and controlled by a valve 65 connected to the throttle valve 41 in such a manner as to close gradually as the throttle opens. The annular passage 60 may also have a small air-inlet always open. Around the fuel tube 22 is a tube 20 with apertures 28 connecting the annular space 23 and the accelerating-well 17, which communicates with the normal well 18 through ports in a screw plug 16 carrying the tubes 20, 22. The well 18 is supplied from a space 35 in the float chamber through a valved orifice 34 and a passage 32. The upper end of the accelerating-well 17 is connected through a restricted opening to the atmosphere, and the annular space 23 has openings at the upper end to the space 25 below the nozzle 31. When the throttle is opened wide, the increased suction draws fuel through the nozzle from the well 17 through the apertures 28 and the annular space 23; as the descent of the fuel uncovers the apertures 28 in succession, air is drawn through the apertures to aerate, the fuel. A starting and idling jet 43 near the throttle is supplied from the fuel passage 32 through passages 56, 54, 48, Fig. 3, and a passage 44 within a rib 45, the tube 56 having a restriction 57. Air is supplied to the idling jet by a port in the Venturi 11 controlled by a valve 46. A valved air-inlet elbow pipe 6 is connected to the carburettor body by a split flange 7 tightened by a screw 8.
Patent GB-737517-A (GB)
Title: New or improved kettle
IPC: A47J36/00
Filed: 1953-06-26
Abstract: 737,517. Kettles. JACKSON, C. March 31, 1954 [June 26, 1953], No. 17722/53. Class 66. A kettle having an inwardly domed or dished bottom 1A is provided with a detachable dish 4 suspended in the interior of the kettle and housing a loose tray 7 and with a lid 9 which serves to close the mouth of the dish 4 and of the kettle. The dish 4 may be adapted to stand on the domed bottom of the kettle and may have an additional lid 8.
Patent GB-236968-A (GB)
Title: Improvements in or relating to apparatus for use in the treatment of strips of photographic film
IPC: G03D3/14
Filed: 1925-07-13
Abstract: 236,968. Rosenthal, R. July 14, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Addition to 176,759. Continuous apparatus for developing and like treatment.-In apparatus in which the film F, Figs. 1 and 2, is looped over a roller 1 through the baths 2 to 4<1>, as set forth in the parent Specification, the diameter of the roller 1 is decreased in steps and a conveyer roller 9 for conveying the film through the drying area has a drive the strength of which is varied automatically in accordance with the tension in the film itself. Further means are also provided for compensating for the progressive shrinkage in the film during drying, and for controlling the winding drum. The film passes from the final (e.g. washing) tank 4<1> over a roller 7 on a pivotally mounted lever 8, then over the roller 9 and under rollers 18, 19, 20, 21, and is drawn off over a roller 23 to the winding drum 24. The roller 9 is geared with the roller 1 by a chain 11 through differential gearing 13, Fig. 3. A brake pulley 17 of this gear is adapted to be acted on by a brake 16 connected with the pivoted lever 8. Variations in the tension of the film as it passes over the roller 7 will cause relative variations in the speeds of the rollers 1 and 9 by means of the varying action of the brake 16 and pulley 17 on the differential gearing. The rollers 18 to 21 are pivotally connected to a lever 22 hinged at the end nearest to the first roller 18, thereby causing a gradually-increasing deflection of the rollers corresponding to a gradual shrinkage. The winding drum 24 is driven from a pulley 25 through a friction coupling 26 which is controlled by the rod 27 connected to the lever 22.
Patent GB-1520512-A (GB)
Title: Clamps for claming hoses against unidirectional mivement
IPC: F04B43/12
Filed: 1976-04-28
Abstract: 1520512 Peristaltic fluid-machines C GUSTAFSSON 28 April 1976 [30 April 1975] 18085/75 Heading F1U [Also in Division E2]  A hose clamp comprises rotatable members 16, 17, Figs. 3 and 4, each having meshing teeth 18 and having a groove 21 of progressively increasing cross-sectional size which, as the members are rotated, together form corresponding hosereceiving aperture 22. The surface of the groove 21 may be knurled. Each member 16 or 17 has a portion 23 which limits its rotation between fully-closed and fully-open positions. In the latter position a "U"-shaped slot 19, Fig. 6, is available for receiving the hose in the clamp. A pump assembly 10, Figs. 1 and 2, has two such clamps 15 for a hose (not shown), a hose-compressing rotor, or "delta pump", 12, hose channels 14 in an end-wall 13 of a case 11, a speed-control 28, and a control 29 for selecting the direction of rotation of the rotor 12.
Patent GB-477218-A (GB)
Title: Improvements in chewing gum material and process for making same
IPC: A23G4/18
Filed: 1936-06-30
Abstract: A dry undissolved water-soluble oil-insoluble dyestuff is incorporated in chewing-gum base in such amount as not markedly to alter the colour of the dry base, the dyestuff being one that on intimate contact with water will give a colour widely different from the colour of the base, this colour developing on wetting, with the saliva of the user.  The dyestuffs used include blue or red dyestuffs which when used with a yellow base will give green and orange respectively on chewing.  Erythrosine may be added in aqueous solution to the base which is then dried, producing a reddish colour, and a blue dye, e.g. sodium indigo disulphonate, is then incorporated as a dry powder, giving a red or pink colour and, on chewing, purple. In adding dyes such as erythrosine to the uncoloured base there may be added to the water in which they are dissolved a fruit acid, e.g. citric acid in amount equal to that of the dyestuff to strengthen the colour and prevent it staining the saliva.  The chewing-gum base may first have added to it an oil-soluble colour carried in an oily vehicle, e.g. to a natural gum base such as chicle or a gutta base there is added, Yellow AB or Yellow OB dissolved in white medicinal mineral oil, cocoa butter, stearine or other oil or fat, and after thorough admixture Brilliant Blue, Indigotine, sodium indigo disulphonate or other food colour is added, the added colour producing no appreciable change in colour.  In another form, the oil-soluble yellow dyestuff is dissolved in a part of the oil or hydrogenated oil or stearine which is a constituent of the base and added to the base, consisting of a synthetic chicle or chicle substitute which is dried and a water-soluble blue dyestuff then added.  The chewing-gum may finally be obtained by melting or softening the base, e.g. in a jacketed kettle provided with agitators, cane sugar being mixed therewith, and then glucose with flavouring or medicinal agents or both.  In a modification the undissolved dry dyestuff may be incorporated into the base with the sugar.
Patent GB-713906-A (GB)
Title: Improvements in or relating to devices having a cleansing and/or disinfecting action
IPC: A47L17/00
Filed: 1952-07-17
Abstract: 713,906. Soap holders; brackets. BURGIN, D. July 17, 1952 [July 17, 1951], No. 18113/52. Classes 52(5) and 131 [Also in Group VI] A household cleansing or disinfecting device comprises a perforated housing containing a soluble or volatile substance in the form of a pressed body provided with a central bore through which extends a plug-like member forming part of a carrier for the pressed body and extending through two oppositely disposed walls of the housing one of which forms a removable cap, the plug-like member having a groove at its end which makes snap engagement with the edge of the aperture in the corresponding wall of the housing when the member is inserted through the housing and the pressed body. As shown in Fig. 2 a carrier by means of which a block f of washing agent can be temporarily immersed in water has a handle d' and a plug d<SP>2</SP> on which the block is secured by the snap engagement of a perforated housing e with a groove in the free end of the plug. In a modification shown in Fig. 1 for disinfecting rooms or water-flushed closet bowls the pressed body b consists of filler material and a volatile substance or a disinfectant and the carrier comprises a rubber plug a<SP>1</SP> which includes a suction cup a and a housing c of thermoplastic material having a removable cap c' making snap engagement with a groove in the plug.
Patent GB-1355535-A (GB)
Title: Method for extraction of metals from solution
IPC: C22B3/00
Filed: 1971-05-28
Abstract: 1355535 Extracting metal values UNIVERSITY OF MELBOURNE 28 May 1971 [28 May 1970 17 June 1970] 18137/71 Heading C1A [Also in Divisions C2 and C7] Metal values are extracted from solution by contact with brown coal, brown coal char or peat in the presence of ammonia or a nitrogenous organic base capable of forming a complex with the metal, which may be added to the solution or impregnated into the adsorbent. The metals extracted may be Cu, Zn, Ni, Cd, Ag, Co, Fe, U, Cr or Mn, from their sulphate or nitrate solns. The base may be methylamine, dimethylamine, trimethylamine, triethanolamine, pyridine or quinoline. The solution may also contain an ammonium salt. Precious metals, e.g. Au, Pt, Pd or Rh, can be extracted from solution, e.g. gold chloride or cyanide) by use of the adsorbent which has been loaded with metal, e.g. Zn or Cu by the above process and partially oxidized, the Zn or Cu being displaced. The metals may be recovered from the adsorbent by oxidation of the adsorbent with reduction of the resulting metal oxide if necessary, by melting, e.g. with CaF 2  flux, by extraction with acid, or by volatilization, e.g. as Ni carbonyl.
Patent GB-334939-A (GB)
Title: Improvements in and relating to refrigerated packages
IPC: C01B32/55
Filed: 1929-06-13
Abstract: 334,939. Thurston, A. P., (Dryive Equipment Corporation). June 13, 1929. Packing ice-cream. - Icecream &c. is packed in a metal &c. container 11 enclosed in a bag consisting of hair, felt, wool, &c. quilted between canvas covers containing blocks 13 of carbon dioxide.
Patent GB-291976-A (GB)
Title: Improvements in or relating to windows, windscreens and the like
IPC: E06B3/62
Filed: 1927-07-09
Abstract: 291,976. Eastwood, G. W. July 9, 1927. Weather excluders; glazing. - A glazing strip for panels of windows, windscreens, &c. is formed in rubber of dovetail channel section and provided with a, lip a<1> extending along one or both sides which is pressed against the rabbet of the frame making a weathertight joint. The glazing strip is secured by means of an integral or separate fillet nailed to the frame.
Patent GB-232832-A (GB)
Title: Improved means for mounting wireless aerials and the like on roofs
IPC: H01Q1/12
Filed: 1924-08-01
Abstract: 232,832. Pearce, F. R. R. J. Aug. 1, 1924. No Patent granted (Sealing fee not paid). Roofing tiles. - To facilitate the erection of posts on roofs, a tile is removed from the top ridge, and is replaced by a special tile C having pierced lugs D which form a pivotal support for the post K. A rod H passes through the lugs D and may be secured at its ends to the party walls. and the post K has a T-piece at its lower end which embraces the rod H between the lugs D. Additional rods I may be placed on each side of the lugs D and lashed or otherwise secured. A metal bar or strip bent to the V-shape of the tile C, and placed centrally beneath the tile, is bolted to the ridge member G of the roof. The tile C is held down by lashings passing throughholes F.
Patent GB-150877-A (GB)
Title: Improvements in buoys for lifting sunken vessels
IPC: B63C7/22
Filed: 1919-07-24
Abstract: 150,877. Burton, J. P. July 24, 1919. Diving-chambers.-Relates to a buoyant diving- chamber for raising sunken vessels. The chamber, preferably of the shape shown, has double walls between which air or other gas may be pumped to give buoyancy. The chamber is also fitted with a propeller 12x for raising or lowering and another propeller 17 for urging it towards the side AB of the sunken vessel, to which the chamber is held by pneumatic suckers 6, and a drill 33. The suckers are carried by tanks 4 fixed to the outer wall of the chamber. There are also provided a rudder 19, a shaft 2<10> for the workmen, pumps 15<8> for exhausting the tanks, a pump 18<4> for pumping air &c. from the tube 18<x> to the space between the walls, and ventilating-pumps 20<x>, 21<x>. The drill, pumps, and propellers are worked from the shaft 9<1> of a motor 9 through suitable gearing controlled by handles 14<3>, 18<15>, 17<12>, and the rudder is worked by a lever 19".
Patent GB-1530156-A (GB)
Title: Portable toilet
IPC: E03D5/016
Filed: 1975-12-01
Abstract: 1530156 Portable toilet THETFORD CORP 1 Dec 1975 [20 Jan 1975] 18496/78 Divided out of 1530155 Heading E1C The subject matter is the same as that of Specification 1530155 but the claims are diwater closet, Figs. 1, 3, 4 (not shown), of handle (58) and clamp mechanism (62, 72, rected towards the location in a portable 74, 94) securing together its upper seat section (14) and lower waste-holding tank section (12).
Patent GB-490706-A (GB)
Title: Improvements in or relating to zinc alloys
IPC: C22C18/02
Filed: 1937-07-02
Abstract: An age-resistant magnesium-free zinc alloy comprises more than 4,4 and up to 5,5 per cent of copper, 0,1-0,2 per cent of aluminium and the remainder cadmium-free zinc.  Sheets of the alloy for deep-drawing are made by crosswise rolling at 180-220 DEG  C. Specification 483,198 is referred to.
Patent GB-183443-A (GB)
Title: Improved process of purifying sulphate of baryta, or other mineral substances
IPC: C01F11/46
Filed: 1922-07-06
Abstract: Mineral substances particularly barium sulphate are purified by heating the broken material in a furnace to about 300 DEG  C. and then separating the portions that have become reduced to powder by the heating from the portions that have remained unchanged.
Patent GB-294876-A (GB)
Title: Improvements in or relating to furnace walls
IPC: F23M5/08
Filed: 1928-06-27
Abstract: 294,876. Fuller Lehigh Co., (Assignees of Bailey, E. G.). July 30, 1927, [Convention date]. Blocks for furnaces.-In furnaces particularly adapted for burning powdered fuel and having walls comprising metal blocks or tiles secured to water tubes, the blocks are provided with projections and depressions to retain slag and are cooled sufficiently to cause the slag impinging upon them to congeal and gradually build up until a sufficiently thick layer forms to decrease the rate of heat transmission to a point at which the inner surface of the slag layer will reach a sufficiently high temperature to prevent more slag from congealing and adhering thereto. As shown in Figs. 1 and 2, each block 9 is secured to water tubes 5 by clamps 7 and bolts 6 and is provided with wedge-shape ribs 12, 13 forming depressions 14 in which the slag accumulates. The blocks are provided with a thin coating of plaster to cause the slag to adhere. The ribbed surfaces may be roughened by imbedding in the surface during moulding particles of refractory material such as corundum. The surface of the blocks may be flat instead of dished, as shown.
Patent GB-991321-A (GB)
Title: Bottle handling apparatus
IPC: B65G29/00
Filed: 1962-05-15
Abstract: 991,321. Conveyers. GEO. J. MEYER MANUFACTURING CO. May 15, 1962 [May 18, 1961], No. 18634/62. Heading B8A. A bottle 12 is discharged from a carrier 14 mounted on an endless chain in a washing machine into a guide assembly 26 at a discharge station 16 by a knock-out finger 34. Each guide assembly 26 comprises slides 44 forming V-shaped guides with a slot at the bottom into which a cam 62, with a wear strip 96 of nylon, and fingers 92 with slightly bent edges 94 arranged to engage a bottle ejected on to the slides 44, fits. As best seen in Figs. 11, 14, a bottle discharged from the washing machine by knock-out finger 34 into the slides 44 is supported by a face 86 on the cam 62 and by the finger 92. The cam rotates and the bottle 12 is deposited on aplate 30 from which it is pushed by cam face 88 on to a discharge conveyer 22, finger 92; pivoted at 74 swings out of the way of the cam face 88 as the cam continues to rotate. Specification 991,323 is referred to.
Patent GB-243779-A (GB)
Title: Improvements in or relating to toothbrushes
IPC: A61C17/24
Filed: 1924-08-06
Abstract: 243,779. Craig, W. G. Aug. 6, 1924. Brushes, hand-supported, driving by hand or power.- An appliance for cleaning the teeth, and which enables the backs of the teeth to be reached, comprises a rotary brush 1 held in a jaw-chuck 4 on a flexible shaft 7 driven by a portable manually - driven or spring - actuated motor having a clamp 13, 15 for securing it to the edge of a table or the like. The motor may consist of a coil spring and gearing, the spring being wound up by a cord on the spring drum; or as shown, the shaft may be driven by gearing 10, 11 from a crank-handle 12.
Patent GB-715679-A (GB)
Title: Improvements in or relating to pit props
IPC: E21D15/28
Filed: 1950-07-26
Abstract: 715,679. Pit props. DE DIRECTIE VAN DE STAATSMIJNEN IN LIMBURG. July 26, 1950 [July 29, 1949], No. 18687/50. Class 20 (2) In a telescopic pit prop having an inner member 1 of trough section with converging sides clamped between the outer member 2 and a drag wedge 8 which slides down under mine roof pressure with the inner member, until arrested by a stop 11, this stop 11 is mounted on a strut or struts 12 arranged longitudinally within the outer member and transmitting the pressure of this pressing piece to the base 14 of the prop. The strut may be formed by the turned in edges of the lower prop member. The clamping pressure is produced by a horizontal wedge 4 driven between vertical wedges 5, 6. The prop may rest on a spherical bearing 15. The wedge 8 carries a spring pin 21 which engages the stop 11 and returns the wedge to vertical position when the prop is released. The prop lock may be constructed separately and stored ready for mounting. Specifications 703,327 and 703,357 are referred to.
Patent GB-692968-A (GB)
Title: Process for the manufacture of stable preparations of vitamins of the b group
IPC: A61K31/00
Filed: 1951-08-09
Abstract: Stable preparations of vitamins of the B12 group are obtained by means of the addition of hydrocyanic acid or one or more cyanides. Preferably soluble cyanides are used but zinc cyanide may be used in addition.  The pH of the solution is adjusted to a value between 5 and 7.ALSO:A vitamin composition comprises vitamin B12, vitamin C and hydrocyanic acid.
Patent GB-858103-A (GB)
Title: Improvements in apparatus for crimping textile fibres
IPC: D02G1/12
Filed: 1958-06-12
Abstract: 858,103. Crimping fibres and yarns. BANCROFT & SONS CO., J. June 12, 1958 [June 13,1957], No. 18836/58. Class 120(3). Apparatus for crimping yarn or filaments comprises rolls feeding yarn into one end of a crimping and setting chamber against the mass of crimped yarn therein and forcing the mass to advance along the chamber, take-up means removing crimped yarn from the other end of the chamber, and means for driving the rolls at a speed variable inversely with the torque necessary to feed the yarn into the chamber whereby the pressure on the mass is dependent on the torque characteristics of the driving means. The drive to the rolls may include a slipping clutch e.g. a hysteresis clutch the slip of which increases as the load exceeds a predetermined maximum. In addition, the take-up means may be arrested when the level of the mass ir the chamber falls below a predetermined point. As shown in Fig. 1, yarr 19 braked by a tensioner 21 passes through a guide 20 to rolls 18 and is fee into a tube or chamber 14 secured in a block 10 which houses an electrica unit 22 whereby yarn is heated to set the crimp. Crimped yarn is withdrawn through the bore 46 of a member 45 and wound on to a bobbin 55 of a constant speed winder 56. Upwarc movement of member 45, according t( change in level of massed yarn, cause: a flange 53 to engage an adjustable stop 47 whereupon the mounting back pressure increases the torque required to rotate shaft 25 and the speed of rolls 18 decreases or is interrupted as a result of slippage of a hysteresis clutch through which roll 18 is driven from a motor 34 by belt 31 and pulleys 32 and 27. The clutch comprises permanent magnets 36 coacting with discs 37 the gap (hence the transmitted torque) between which is adjustable. Normally shaft 25 is driven so as to feed yarn at a rate exceeding the rate of withdrawal by winder 56, but if the level of yarn mass falls the flange 53 operates a microswitch 51 to stop the apparatus. In an inverted chamber, Fig. 2 (not shown) crimped yarn is withdrawn against a spring-loaded ball closure for the tube 14. As shown in Fig. 3, member 45 may be replaced by a cap 65 sliding movement of a sleeve 66 of which on tube 14 is limited by a stop 67 or operates a stop microswitch 70: the cap also cools the yarn below the setting temperature, before withdrawal. In another embodiment, Fig. 4, a cap 75 forms a fixed cooling chamber and a leaf spring 77, normally depressed against the wall of tube 14 by pressure of the yarn mass, actuates a stop microswitch 78, if it is released. In a modified drive, Fig. 5, a hysteresis clutch, between drive shaft 80 and feed rolls 86, comprises magnet poles 85 secured to the shaft and coacting with a ring 88 carried by one roll 86 journalled on the shaft: a washer 89 determines the air gap.