baber/WOPTO huggingface dataset:
Patent GB-1450006-A (GB)
Title: Method of manufacturing an electrophotographic toner
IPC: G03G9/08
Filed: 1975-02-14
Abstract: 1450006 Toner particle manufacture WIFO WISSENSCHAFTLICHES FORSCHUNGSINSTITUT AG 14 Feb 1975 [26 Feb 1974]  6437/75 Heading G2H Electrographic toner particles are made by dispersing as liquid droplets a solution of a toner material in a liquid which is immiscible with the toner solvent and does not dissolve the toner material, causing the droplets to solidify as globular particles by removing solvent from the droplets and separating the solidified toner particles from the said liquid. In the examples, hot solutions of resins plus Sudan black in organic solvents are dispersed in hot water with and without added surfactants, in some examples diluted with water, cooled, the organic solvent evaporated and the particles filtered off and dried. The toner particles are mixed with iron carrier particles. Resins exemplified are polyamides and mixtures comprising polyvinylbutyral, polyvinyl acetate, a terpene resin, an esterified Montan wax with and without polydimethylsiloxine. Surface modifying materials, such as finely divided silica, bentonite or talc, may be added to the dispersion after solidification of the toner particles or may be added to the toner particles after redispersion in water. Silicone oils may be added before or after solidification of the particles.
Patent GB-772602-A (GB)
Title: Improvements in ploughs
IPC: A01B3/00
Filed: 1954-03-05
Abstract: 772,602. Agricultural implements. COMPAGNIE FRANCAISE THOMSONHOUSTON. March 5, 1954 [March 5, 1953 ; May 29, 1953], No. 6524/54. Class 6(1). A plough is provided with a rectilinear structure 12 extending from a point on the landside opposite the centre of resistance of the plough body 1 to a traction member 4. As shown in Fig. 3, the plough may be vertically adjusted by means of a device 16. As shown in Fig. 17 the structure 23 forms the coulter and is made integral with the share 24 and mouldboard 24a. In this embodiment the plough may be connected to a wheel carriage by means of an articulation which allows the plough to operate in a vertical position. The invention may be applied to manually guided ploughs, horse drawn ploughs or to ploughs pulled by four-wheeled or two-wheeled tractors or to reversible ploughs.
Patent GB-789457-A (GB)
Title: Improvements in wedges
IPC: F16B21/14
Filed: 1955-03-05
Abstract: 789,457. Wedges. ARTHUR, E. M. Feb. 28, 1956 [March 5. 1955], No. 6537/55. Class 89(2) [Also in Group XXIII] A wedge, e.g. for removing an object secured to a shaft &c. by a wedge or taper fit, comprises a body 1 with a ridge on both operative faces 2. The ridges 3 are formed by sloping each face 2 laterally and, when the wedge is driven between the parts to be separated, the ridges bite into the surfaces of the parts to prevent lateral slip of the wedge. The faces 2 may be hollow ground. A holder may be provided to support two wedges spaced apart by the diameter of the shaft &c. A U-shaped member may have each leg formed as a wedge with the sides 4 of the wedges facing one another.
Patent GB-563206-A (GB)
Title: Improvements in or relating to photographic objectives
IPC: G02B13/00
Filed: 1943-04-23
Abstract: 563,206. Photographic objectives. KODAK, Ltd. April 23, 1943, No. 6572. Convention date, May 11, 1942. [Class 97 (i)] An objective comprises front and rear positive components I, IV, with a biconcave component III and a meniscus component II, concave to the biconcave component, spaced between them, the overall length of the objective being greater than one-quarter of its focal length F, the meniscus component having a thickness greater than one-fiftieth F and surface powers such that their algebraic sum lies between minus twice and plus three-tenths of the power of the objective, and the front surface of the biconcave component having a radius lying between eight-tenths and twice the radius of its rear surface. The meniscus component may be in front of, or behind, the biconcave component and may be of weakly positive or negative power, or afocal, the spacing of these components being less than the spacing between the biconcave component and its . adjacent positive component. The radius of the concave face of the meniscus component may lie between 0.2 F and 0.8 F, and this component may be made from two pieces of optically similar glass having plane faces cemented together. Other conditions for spacing and refractive indices, and complete data for three examples are set out.
Patent GB-662964-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H1/26
Filed: 1949-03-10
Abstract: 662,964. Retractive switches. BRITISH THOMSON-HOUSTON CO., Ltd. March 10, 1949. [March 10, 1948] No. 6586/49. Class 38 (v). In order to avoid contact-chatter due to vibration, the contacts 24, 25 of a switch are urged together by the resilience of their carrying springs 22, 23, so as to move together for a certain distance. As the spring 22 is moved down by an operating member 41, the spring 23 follows until it engages a stop 29, whereupon the contacts open and, conversely, when the member 41 rises, the contacts engage and then move together for a short distance. The operating member 41 is carried on a lever 38 which is pivoted at 35 and normally urged by a spring 45 to the position shown so as to open the contacts, which are closed by depression of the left-hand end of the lever 38 by a lever 44 pivoted at 49 and engageable by an operating member 54.
Patent GB-854173-A (GB)
Title: Improvements in or relating to electrolytic cells
IPC: C25C3/16
Filed: 1957-02-27
Abstract: 854,173. Fused-electrolyte cells. PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES. Feb. 27, 1957 [Feb. 28, 1956], No. 6605/57. Class 41 A method of reducing the magnetic effects at the centre o of a fused-electrolytecell employing a heavy current, e.g. 50,000 to 100,000 amps, comprises arranging the upper and lower conductors 2, 3 by which current is led to and from the cell in such a way that the transverse component By of the magnetic field at the centre o and its partial derivative d by both equal zero. dz y, z are the directions indicated on Fig. 7, and formulae relating the distances a, b, c, d, (where a, b are the co-ordinates of a lead 2 and c, d the co-ordinates of a lead 3 with o as origin, a equalling zero in Fig. 7), are worked out in the Specification for by and for its derivative. The formula for by is a circle 6, 7, or 10, Fig. 7, the radius depending on the proportion of the current which is fed to each end of the cell, e.g. where the current from the cathode lead 3 1, Fig. 6, of the preceding cell is divided into two parts and each part is delivered to the anode by leads 2,4 from opposite ends of the cell, the circle 7 or 10 is obtained. Where all the current enters the L.H. end of the cell (where the cells are arranged as in Fig. 6), the circle 6 is obtained. The formula for the derivative is a cubic curve 5 and its points of intersection 8, 9, 11 with the circles 6, 7, 10 give the mean positions of the leads 3, i.e. the co-ordinates c, d and the leads 3 may be divided and disposed parallel about the mean position. The formulae are graphed for c and d in Fig. 7, the value a equalling zero in praciice, and b being kept constant.
Patent GB-812095-A (GB)
Title: Improvements relating to the formation of phosphate coatings
IPC: C23C22/08
Filed: 1957-02-27
Abstract: An aqueous acidic coating-phosphate solution suitable for treating surfaces of iron, iron-base alloys, zinc and zinc-base alloys, comprises a phosphate of one or more of iron, zinc and manganese, and the hypophosphite radical, and has a pH of 1.8-3.2. The hypophosphite radical may be introduced into the solution as hypophosphorous acid or as the alkali metal, alkaline earth metal, or zinc, manganese or iron salts thereof.  The solution may also contain accelerators such as nitrates, nitrites, sulphites, hydrogen peroxide, hydroxylamine, m-nitrobenzene sulphonate and picric acid.  Fluoride may be added, particularly for coating zinc, in the form of hydrofluoric acid, sodium borofluoride or sodium bifluoride.  Aqueous concentrates containing phosphoric acid, sodium hypophosphite and zinc, manganese or iron or a compound thereof may be used to replenish the coating bath; they may also be used to introduce hypophosphite into coating-phosphate solutions free of this radical.  It is stated that the coatings formed act as a lubricant during drawing and are receptive to paint.
Patent GB-862551-A (GB)
Title: Improvements in or relating to stop cocks
IPC: F16K27/06
Filed: 1958-03-03
Abstract: 862,551. Valves. JENNINGS, R. W. May 12, 1959 [March 3, 1958], No. 6707/58. Class 135. In a rotary conical valve, the body part is made of a plastic material e.g. polythene, polystyrene, nylon &c., and the conical bore therein, which houses the plug member, is glass lined. The plug may be made from a plastic material and may have a glass sleeve covering, or it may be made entirely of glass. To secure the glass sleeve in the body part, the former is heated to the liquefaction temperature of the plastic material and is then pushed into position, or the body part may be formed by injection moulding the plastic material round the glass sleeve.
Patent GB-450420-A (GB)
Title: Improvements in the treatment of textile materials
IPC: D06M13/256
Filed: 1935-03-04
Abstract: Lubricants for fibres of cellulose esters or ethers or of other material, are composed of a dihydric or polyhydric alcohol or a lower aliphatic ether thereof, and a soap or a saponifiable wax or a wax-like substance, e.g. woolfat alcohols, obtainable therefrom. Water, oils, e.g. olive, light mineral, or sulphonated oils, preferably with alkylol amine salts, and fugitive colours, e.g. acid dyestuffs may be added.  Alcohols and ethers specified are glycerol, glycols, e.g. ethylene or propylene glycol, polyglycols, e.g. diethylene glycol, and the methyl and ethyl ethers of ethylene or diethylene glycol.  The soaps preferred are those of ammonia or an alkylolamine.  For example, there is applied to celluloseacetate yarn, 2--10 per cent of a mixture of (1) 1 lb. of triethanolamine oleate, 9 lb. of diethylene glycol, and a small amount of a fugitive colour, e.g. Erioglaucine, Acid Violet, or Acid Green; or of (2) 10 lb. of triethanolamine stearate, 45 lb. of mono-ethyl ether of diethylene glycol, and 45 lb. of diethylene glycol.
Patent GB-851581-A (GB)
Title: Forced-flow, once-through steam generators
IPC: F22B29/08
Filed: 1959-02-26
Abstract: 851,581. Forced-flow steam boilers. SULZER FRERES S.A. Feb. 26, 1959 [March 12, 1958], No. 6757/59. Addition to 754,302. Class 123(2) The forced-flow, once-through steam boiler described in the parent Specification is modified in that the pipe 9 through which water or a water-steam mixture returns to the hot well 1 during the warmirig-up period branches from the tube system at a point between a main vaporizing section 31 and a post-vaporizing section 32. Thus the section 32 which is so disposed in the boiler that it is not subjected to risk through excessively high temperatures is not included in the water circulation during the warming-up period.
Patent GB-453133-A (GB)
Title: Improvements in or relating to bumper-buoys, floats, fenders, guards or water-spring devices for docks, floating wharves, mooring berths, and the like
IPC: E02B3/26
Filed: 1935-03-04
Abstract: 453,133. Fenders; mooring ships. BUCKTON, E. J., 55, Broadway, Westminster. March 4, 1935, No. 6795. [Class 113 (i)] A fender or bumper buoy for receiving and absorbing the impact of a ship's side during berthing and mooring operations comprises a fender 1 connected by a braced structure 3 with a buoyancy chamber 2. The fender is moored to the bottom by the vertical chains 5 and the chamber 2 by means of the inclined chains 6 to a more distant point 8. By this arrangement the horizontal movement imparted to the ship's side to the fender 1 causes a pivotal movement of the buoyancy chamber 2 thus bringing into play a resilient restoring force in opposition to the momentum of the ship. A long fender which may be used as a landing platform may be associated with two or more buoyancy chambers. In a modification when the device is applied directly to a wharf or pier, the combined fender and buoyancy chamber 1 is pivoted at 19 to the pier. In a further modification a vertical bank of superposed interconnected combined fenders and buoyancy chambers are secured to the quay wall.
Patent GB-1131033-A (GB)
Title: Nesting socket wrench
IPC: B25B13/10
Filed: 1966-02-16
Abstract: 1,131,033. Spanners. J. J. SWEENEY, and M. M. EGAN. 16 Feb., 1966 [7 May, 1965], No. 6808/66. Heading B4W. A multiple socket wrench has a number of nested, polygonal sockets 18-20, two or more sides of each socket 19, 20 being outwardly flared at one end as at 21, 22, so as to form a shoulder or stop for retaining the sockets nested within one another, and to provide engaging surfaces for respective ones of a number of springs 44, 45 concentrically arranged within one another, the centremost socket 18 being provided with a recessed end cap 28 which is adapted to retain the associated spring 42. The outer socket member 30 is press fitted into one end of a socket retaining member 32. A spring retaining member 38 is slip fitted into the opposite end of spring retaining member 32 and retained therein by a pin 36. The member 38 has two concentric recessed cavities 40 and 41 in which the ends of springs 42, 44 seat; the spring 45 engages the end of the member 38. A plug 46, having a reduced diameter portion 47 and having a longitudinally extending aperture 48, is press fitted into the end of a hollow cylindrical member 49 which is sufficiently large to freely and rotatably receive the socket retaining member 32. A shaft 50 having off-set stakes 51 thereon is passed through the aperture 48 which is substantially larger in diameter than the shaft 50 so that the plug 46 will rotate thereon, the end of the shaft 50 being press fitted into an aperture in the end of the spring retaining member 38. The shaft 50 is stake fitted into the handle 11.
Patent GB-667503-A (GB)
Title: Improvements in or relating to vaporizing and dispersing apparatus for liquid disinfectants of low vapor pressure
IPC: A61L9/03
Filed: 1950-03-20
Abstract: 667,503. Fumigating apparatus. EKLUND, S. L. F. March 20, 1950 [April 21, 1949], No. 6845/50. Class 81 (i). An apparatus for vaporizing and dispersing sparingly volatile liquid disinfectants comprises a vertical tubular casing having a lower section 13 and an upper section 14 removably connected to the lower section, a lower air inlet 22 and an upper air outlet 23 in the casing, an electrically heated cup 3 mounted in the lower section of the casing, and a container 1 for liquid disinfectant mounted in an inverted position in the casing with its mouth disposed within and a short distance above the bottom of the cup, the container, and preferably also the cup, being spaced from the casing to form a narrow vertical annular channel 21,26 connecting the air inlet and outlet. A flange 20 interiorly formed on the lower edge of the upper section of the casing causes any liquid condensate formed in the upper part of the channel to return to the cup. Preferably, the inverted container is a bottle whose mouth rests upon a starshaped embossed portion 4 of the bottom of the cup and whose base is centered by a portion of reduced diameter 14<SP>1</SP> of the upper section of the casing. The upper and lower sections of the casing may be connected by means of a bayonet joint 19 and the lower section of the casing may be provided with a wall-bracket.
Patent GB-704224-A (GB)
Title: Improvements in or relating to the production of indurated pellets of finely dividedore material
Inventor: DEVANEY FRED DANIEL
IPC: C22B1/244
Filed: 1952-03-17
Abstract: Indurated pellets of finely divided ore material, e.g. oxidic iron ore concentrates, are produced by forming a plastic mixture of the ore material and water with the addition of up to 10 lbs. per ton, preferably 1-5 lbs. per ton, dry weight of starch, pelletizing the plastic mixture by prolonged rolling action in an inclined rotary drum, and subjecting the pellets to an indurating heat treatment. Prior to the heat treatment. the pellets may be dusted with oxidic iron ore fines and heat dried.  Specifications 628,355 and 631,217 are referred to.
Patent GB-446038-A (GB)
Title: Improvements relating to differential gears for automotive vehicles
IPC: F16H48/30
Filed: 1935-03-05
Abstract: 446,038. Differential gearing; clutches. ADAMS, T..L., 2450, 6th Avenue West, Owen Sound, Ontario, Canada. March 5, 1935, No. 6901. [Class 80 (ii)] [See also Group XXXI] The differential, gearing of a motor vehicle may be locked when desired by the driver, the locking means being released automatically when the necessity therefor no longer exists. Within the housing 1 are the aligned axles 2 having the usual gears 3 engaging pinions 4 on the differential casing 5. This casing at one side is journalled in the housing 1 and, at the other side, has a sleeve 6 loose on the axle 2 this sleeve being loosely surrounded by another sleeve 8 keyed to the axle 2. Sleeve 6 is integral with a clutch disc 7, and sleeve 8 with a clutch disc 9. The discs may be locked together by a clutchengaging member 11 in the form of a ring with internal projections 13 and movable axially by a cranked rod 17, 18, ring 14, pins 15 and yoke lever 16. The rod 17, 18 is loaded by a spring 21, Fig. 3, tending to lock the gear, but this is prevented by a stronger spring 22 which pushes out a button connected by wire 25 to the cranked rod. By pushing in the button, the spring 21 is allowed to act to lock the gear, the spring 22 retracting the clutch-engaging member when the running conditions permit.
Patent GB-1513761-A (GB)
Title: Detents for locking movable elements
IPC: F16K11/07
Filed: 1975-02-19
Abstract: 1513761 Valves KONTAK MFG CO LTD 5 Feb 1976 [19 Feb 1975] 6902/75 Heading F2V Detent means for a manually operable spool valve comprises a detent carrier 8 sliding in a bore of a movable cage 10 and steel balls 11 which are resiliently pressed against the bore by stud 12 and spring 13 and engagable in recesses 10A in the cage 10. A centering spring 7 acts against cups 6 and a set of disc springs 9 resist spool movement past the full flow position in either direction. On moving the spool past the full flow position the disc springs are compressed, the detent is engaged and the cage moves to an end position defined by stop 14 or end wall of cap 4. On release of handle 3, the spool moves to and is retained at the full flow position.
Patent GB-208959-A (GB)
Title: Improvements in and relating to reversible cuffs for shirts or the like garments
IPC: A41B7/04
Filed: 1923-03-10
Abstract: 208,959. Macklin, A. G. March 10, 1923. Shirt-cuffs. - In a reversible shirt-cuff of the double-fold pattern therein the cuff is united to the sleeve by a central ligament which is twisted to reverse the cuff, button - holes 6a are formed in extensions 3<a> of the sleeve 3 on each side of the ligament 4. When the ligament is folded on the lines 8 the button-holes 6 of the folded cuff register with the holes 6<a> in the sleeve extensions. To reverse the cuff the ligament is folded on the lines 9, 10, Fig. 6.
Patent GB-626753-A (GB)
Title: Improvements in gas or electric cookers
IPC: F24C15/08
Filed: 1947-03-13
Abstract: 626,753. Cooking stoves. TURLEY & WILLIAMS, Ltd., SMITH, C. D., and OTTON, D. H. March 13, 1947, No. 6967. [Class 126] A gas or electric cooker has a pair of side frames of metallic tubing embodying a pedestal or feet and supporting the oven and hotplate which are interlocked with the tubing by means of tapped pins engaged by set screws, The tubular frames b form a support bl for the cooker and carry an oven a as well as hotplates. The rear limbs of each tubular frame b extend upwards above the hotplate and may be adapted to carry a splashplate c, each open end of the tube being covered by a cap d. The oven a is supported at the front by a cross-bar g and at the rear by pins e secured to the tubular frames band the rear plate a<SP>1</SP> of the oven by screws. Specification 626,754 is referred to.
Patent GB-567652-A (GB)
Title: Improvements in or relating to picker mechanism for circular knitting machines
IPC: D04B9/20
Filed: 1943-05-03
Abstract: 567,652. Knitting-machines. BENTLEY ENGINEERING CO., Ltd., BROOKSBY, E., and DEANS, F. E. May 3, 1943, No. 6982. [Class 74 (ii)] A picker having a central portion 10 operative upon short butts of the needles of a knitting- machine, is provided with laterally extending wings 13. The wings 13 are of sufficient width to cover such gaps as occur in the long butts of the needles due to the layout of the butts for pattern requirements. One laterally extending wing only may be provided.
Patent GB-112228-A (GB)
Title: Loose-leaf Binders.
Inventor: HILL EDWARD WILBUR
IPC: B42F13/00
Filed: 1917-05-16
Abstract: 112,228. Hill, E. W. May 16, 1917. Locks; locking-followers; covers.-A loose-leat binder comprises opposed back members between which the leaves are held, and which are locked together by interengaging locking shoulders adjacent opposite ends of the back members, and digitally operable means for simultaneously releasing both sets of shoulders from a single controlling point. The back members 10, 11 are provided with locking shoulders 15, 16, the latter being in the form of pins carried by spring-pressed fingers 17. The pins 16 normally engage the holes 15, but may be withdrawn by pressing the push-button 30, thus actuating the levers 22 and raising the plate 20. A locking-member for the pushbutton may be provided in the form of a key-operated rotatable member 40. Two rows of holes 15 and pins 16 may be provided at each end of the binder, the rows being offset so as to provide for finer adjustment, and the whole locking-mechanism may be protected by the hollow back 33.
Patent GB-1450730-A (GB)
Title: Sealing devices
IPC: C10B25/16
Filed: 1974-02-15
Abstract: 1450730 Sealing coke oven doors COAL INDUSTRY (PATENTS) Ltd 11 Feb 1975 [15 Feb 1974] 6989/74 Heading C5E [Also in Division F2] In a sealing strip, e.g. for a coke oven door, a reinforced cone 3 of powder or fibre material is enclosed in an elastomeric cover 1. The core 3 may be of powdered asbestos reinforced with strands 4 of metal or asbestos and the cover 3 may be of neoprene protected by a steel mesh 5. In another form, a core (9, Fig. 2, not shown) of loose asbestos fibres is reinforced with woven asbestos 8.
Patent GB-453151-A (GB)
Title: Undecyl compounds and method for their production
IPC: C07C305/06
Filed: 1935-03-06
Abstract: Starting from ethylhexaldehyde, this is first condensed with acetone in the presence of alkali to produce an undecyl ketol (5-ethyl-4-hydroxy-nonanone-2).  Upon acidifying the reaction mixture, and raising the latter to the boiling point, unsaturated undecyl ketone (5-ethylnonen - 3 - one - 2) is formed, which is separated by fractionating under reduced pressure; the formation and fractionation may proceed concurrently.  The undecyl ketone is hydrogenated under pressure and at 20--200 DEG  C. to give an undecyl alcohol (5-ethylnonanol-2) and at the same time a saturated ketone, 5-ethylnonanone-2, both of which are solvents for nitrocellulose and other lacquer materials and can be separated from each other by fractionation.  The alcohol is converted to its acid sulphate, for example, by gradual addition to a mixture of sulphuric acid and acetic anhydride at 0--10 DEG  C.; or other anhydrides may be used, or in place of these the acids themselves or the acid chlorides. From the sulphate, the sodium salt is formed by neutralization with caustic soda, although other salts may be formed by using for the neutralization, compounds of other alkali or alkali earth metals, or ammonia, the ethanolamines and the ethylene amines.  The condensation and hydrogenation may be carried out in the liquid or vapour phase. The sodium salt of undecyl monosulphate is a wax-like solid having strong wetting and foam-producing properties, suitable as a textile lubricant, wetting agent and frothing agent.  Specification 307,709, [Class 2 (iii)], is referred to.