baber/WOPTO huggingface dataset:
Patent GB-1408522-A (GB)
Title: Abrasive grit exhaust systems in grinding machines
IPC: B24B55/10
Filed: 1973-04-26
Abstract: 1408522 Removing waste material in industrial processes TEDA-LAB I ESKILSTUNA AB 26 April 1973 19848/73 Heading F4X An exhaust hood for rotary grinding material 2 of a grinding machine 1 consists of a stationary part 4 connected, e.g. to an exhaust conduit 7, and a part 3 which rotates with the grinding material 2. A labyrinth seal 8 interconnects the rotary and stationary parts of the hood, the rotary part 3 being worn away at the same time as the grinding material and being eventually replaced. The hood portion 3 is adapted to the shape of the grinding material and forms therewith a gap 10 through which the abrasive grit &c. generated in the grinding operation is exhausted via holes 9 in the cover portion 4 to the exhaust duct 7. The grinding material shown comprises a cap-shaped grinding wheel. Exhaust arrangements suitable for other shapes of grinding wheel are described (see Figs. 3, 4 and 5, not shown).
Patent GB-329878-A (GB)
Title: Improvements in the treatment of mica or artificial mica or substances resembling mica
IPC: C08K9/08
Filed: 1929-06-28
Abstract: 329,878. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). June 28, 1929. Artificial mica. - Mica laminae are cemented together with a composition consisting of the unhardened condensation products of polyhydric alcohols with polybasic organic acids, together with organic or inorganic absorbent fillers, e.g. asbestos powder, calcium sulphate, kieselguhr &c. and then submitting to heat and pressure. if desired the resinous condensation product may be diluted with an organic solvent before mixing 'with the fillers.
Patent GB-147885-A (GB)
Title: Improvements in and relating to the manufacture of composite conductors for dynamo electric machines and other electric apparatus
IPC: H02K3/12
Filed: 1920-07-09
Abstract: 147,885. Siemens - Schuckertwerke. Dec. 29, 1917, [Convention date]. Addition to 147,571. Conductors.-In making conductors of the composite type for alternating-current machines &c. of large output, in the manner described in the parent Specification, and particularly in the case where the individual conductors consist of flat strip material, the initial flat coils shown in Fig. 1 are pulled out endwise in such a manner that the narrow sides u, v of the coils lie in the planes of one of the adjacent long sides s, t, as shown in Fig. 4.
Patent GB-1465266-A (GB)
Title: Rotors for rotary wing aircraft
IPC: B64C27/00
Filed: 1973-04-26
Abstract: 1465266 Damping vibrations in helicopter rotors WESTLAND AIRCRAFT Ltd 3 April 1974 [26 April 1973] 19997/73 Heading B7W [Also in Division F2] Vibrations in the plane of rotation of a helicopter rotor are damped by a circular hollow weight 11 supported on the rotor hub 17 by vertical articulated links 29 and horizontal spring boxes 24. In the embodiment the rotor has four blades each carried by an arm 13 (two only shown) and a spindle 16 is bolted on top of the rotor shaft 17, a sleeve 18 formed with bifurcated lugs 32 and 23 being mounted on the spindle and positioned by a pin 19 and locked by a nut 20. The links 29 are pivotally mounted on the lugs 23 and have pivoted connections with the underside of the weight 11 thereby supporting it for substantially horizontal planar movement. Such movement is damped by the four equi-spaced spring boxes 24 which each comprise a housing 34 and a spring-loaded piston 36, the piston-rod 37 having a loose pivotal connection 25 with a respective lug 23, and the housing having a connection 28 with the rim of the weight which connection is so constructed that it may be operated manually to adjust the pre-loading of the spring 26. Adjustable or removable weights 33 are mounted on the inner periphery 15 of the weight 11.
Patent GB-960620-A (GB)
Title: Improvements in or relating to a method for high pressure selective absorption
IPC: E21B43/00
Filed: 1961-06-02
Abstract: Nitrogen or hydrogen is treated to reduce the concentration of an acidic constituent, e.g. CO2, H2S1CO SO2, Cl2, SiF4, HF or HCl, or an impurity, e.g. NH3.  The treatment comprises feeding an absorbent having a preferential absorption for at least one component of the gaseous mixture into the top of a lined hole in the earth extending for more than 100 ft. downwards and more than 33 times the square root of the average cross-sectional area which is used for contacting, flowing the absorbent downwards in the treatment zone near the lower end of which the mixture is fed in to flow counter-currently to the absorbent at more than 100 p.s.i., maintaining a pressure additional to hydrostatic, in the zone of at least 3 times atmospheric, flowing from near the top of the zone the unabsorbed fraction of the mixture which is withdrawn from the hole and the enriched absorbent is withdrawn from near the bottom of the hole.  The absorbent may be water, propylene carbonate or glycerol triacetate.ALSO:Sour natural gas is treated to decrease the concentration of an acidic constituent, e.g. CO2, H2S, CO, SO2, Cl2, SiF4, HF, HCl, HCN COS, mercaptans and if present a heavier hydrocarbon i.e. other than CH4, or a mixture of a light olefine i.e. C2H2, C2H4 or C3H6 and hydrogen is treated to obtain an olefine enriched fraction from which the olefine is recovered. The treatment comprises feeding an absorbent having a preferential absorption for at least one component of the gaseous mixture into the top of a lined hole in the earth extending for more than 100 ft. downwards and more than 33 times the square root of the average cross-sectional area which is used for contacting, flowing the absorbent downwards in the treatment zone near the lower end of which the mixture is fed in to flow countercurrently to the absorbent at more than 100 p.s.i., maintaining a pressure additional to hydrostatic, in the zone of at least 3 times atmospheric, flowing from near the top of the zone the unabsorbed fraction of the mixture which is withdrawn from the hole and the enriched absorbent is withdrawn from near the bottom of the hole. The absorbent may be an aqueous solution of butoxy diethylene glycol acetate, methoxy triethylene glycol acetate, water, propylene carbonate or glycerol triacetate.
Patent GB-644732-A (GB)
Title: Improvements in or relating to electro-magnetic clutches
Inventor: FROST ERNEST MARK
IPC: H01F7/06
Filed: 1948-07-27
Abstract: 644,732. Dynamo-electric machines. MINISTER OF SUPPLY. July 27, 1948, No. 20011. [Class 35] A flexible ferro-magnetic armature 1 comprising a longitudinally moving strip or a rotatable disc is caused to move in either direction by attraction towards one or other of rotating rollers 2, 3 under the influence of a signal applied to a coil 5. To prevent sticking, an alternating current may be superimposed on the signal or the rollers may be made partly of magnetic and partly of non-magnetic material.
Patent GB-884011-A (GB)
Title: Hair dryer
IPC: A45D20/18
Filed: 1958-03-17
Abstract: 884,011. Hair-drying appliances. SUNBEAM CORPORATION. March 17, 1958 [April 17, 1957], No. 20031/61. Divided out of 884,010. Class 81 (2). A portable unit for supplying heated air to a hair-drying cap comprises a fan and driving motor assembled in a casing with heating means in the air outlet and provided with a switch which selectively controls the motor either alone or together with the heating means. The air supply unit comprises a casing 40 enclosing a motor 51 mounted with its shaft vertical and carrying a double fan assembly 71 at the lower end of its armature shaft. The upper fan section 71b draws air, for cooling the motor, through apertures in the top of the casing and expels it through lateral apertures 46, while the lower section 71c draws air in through a central opening 79 in the base and drives it over a heating resistance assembly 85 to a tangential outlet to which a flexible hose, joined to the hood, is connected. The control switch is actuated by a knob 48 the stem of which carries a contact plate 103 suitably profiled for co-operation with fixed contact fingers. This provides an " off " position, a second position in which the motor only is energized, and three further positions giving three degrees of heating by using a low power heater, a high power heater or both simultaneously. Specification 884,010 is referred to.
Patent GB-604124-A (GB)
Title: Improvements in or relating to detonators for initiating the detonation of explosive charges under the surface of a liquid
IPC: F42C15/32
Filed: 1944-10-17
Abstract: 604,124. Blasting detonators. JONES, E., HALL, C. R. L., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 17, 1944, No. 20104. [Classes 9 (i) and 9 (ii)] A detonator for use under water or other liquid has a diaphragm 4 adapted to strike a soft metal rim fire cartridge 11 as a result of concussion transmitted through the liquid from a remote explosion. The cartridge is mounted on a number of spikes 13 and contains a percussion sensitive composition 20. Delay fuze elements may be interposed between this and the primary detonator 21. Resilient rings 5 and 8 are included in the diaphragm mounting. A cover plate 1 is held on by adhesive tape 2, and is removed after the detonator and charge are in position, by pulling on the ring 17, if desired by remote control, or it may be released automatically after a certain period of immersion. A number of charges fitted with such detonators may be so placed that the explosion of one will detonate the next.
Patent GB-141101-A (GB)
Title: Improvements relating to the manufacture of electric dynamos and motors
IPC: H02K1/14
Filed: 1918-12-06
Abstract: 141,101. Lyon & Wrench, A., Cooper, T. L. R., and Todman, J. C. Dec. 6, 1918. Pole-pieces, cores, and yokes; casings, frames, and supports.-The field magnet of a dynamoelectric machine is made up of laminations pressed together in one or more groups 6' and with rods 4 passed through holes therein and secured to end brackets 9, 10 carrying the rotor bearings, and is secured to a bed-plate 14 by means of eye-bolts 15 round the two lower rods 4. A sheet-metal cover may be provided with its edges supported by the end brackets and its ends secured to the base-plate. The laminations are assembled by pressing them on to a cylinder.
Patent GB-504370-A (GB)
Title: Improvements in and relating to electrolytic pickling
IPC: C25F7/02
Filed: 1937-07-21
Abstract: 504,370. Electrolytic pickling of metals ; diaphragms; electrodes. UNGERSBOCK, O. July 21, 1937, Nos. 20268 and 24859. Void. Convention dates, Aug. 3, 1936 and July 8, 1937. [Class 41] Metal articles are pickled in the anode space of an electrolytic cell; they may be connected as anodes or form intermediate electrodes. Preferably a number of cathodes enclosed by diaphragm vessels are arranged in a cell, leaving a common anode space. The acidity of the anolyte is regulated by the current. A diaphragm may be built up of short cylindrical sections and provided with a head of synthetic resin ; it may be suspended from the cathode rail. The diaphragm may alternatively consist of four earthenware plates mounted in a crossshaped frame. The electrodes and diaphragms' may be protected by grid-shaped guards. The anodes may be of lead, manganese dioxide, iron oxide or carbon. The electrolyte may be formed by preliminary electrolysis of a weakly acidulated almost saturated solution of ferrous sulphate until 5 per cent free sulphuric acid is present in the anolyte. When pickling iron the cathode may be of iron.
Patent GB-987340-A (GB)
Title: Process for the treatment of tungsten bearing material
IPC: C01G41/00
Filed: 1963-05-21
Abstract: Tungstic acid is recovered from material containing it by leaching preferably at above 125 DEG  C. with a di- or poly-hydric aliphatic alcohol which is miscible with water and boils above 100 DEG  C.; separating undissolved residue; hydrolysing the solution with water to precipitate tungstic acid; and separating the precipitate. The starting material may be obtained from scheelite, wolframite, huebnerite or ferberite by treating with aqueous inorganic acid, e.g. H2SO4 or HCl at between ambient temperature and 120 DEG  C.; filtering; and replenishing and recycling the acid.  The residue is then leached with the alcohol, e.g. ethylene glycol or glycerol (giving a slurry containing 10-20% solids) preferably in the presence of at least 0.25% halide, e.g. HCl.  Alcohol and halide which vaporize are condensed and returned to the leaching step, or, preferably, used in the hydrolysis step, with the addition of 10-40% water.  Hydrolysis is effected at temperatures up to 100 DEG  C., and the filtrate is returned to the leaching step after removal of at least part of the water by distillation.  The precipitated tungstic acid may be converted by heating or ignition into the oxide which may then be reduced by reaction with H2 to finely divided tungsten.
Patent GB-634813-A (GB)
Title: Syphon or pump
IPC: F04F10/00
Filed: 1947-07-29
Abstract: 634,813. Siphons. WILLIAMS, S. P. July 29, 1947, No. 20373. Convention date, July 29, 1946. [Class 69 (i)] [Also in Group XXVIII] A priming unit for a siphon; which may be used as a pump, comprises a hollow body 1 provided at one end with a tube 3 which is inserted in the siphon hose 4 and at the other end with a detachable plate 5 through which slides a tubular rod 6, the lower end of which passes through a plunger 7 whilst the upper end 9 opens to atmosphere. Non- return valves 10 and 12 are provided in the tubes 3 and 6 respectively, but these may be held open by screws 11 and 13. For priming the siphon, the valves 10 and 12 are held open and a thumb placed over the opening 9, the plunger being withdrawn in the cylinder 1, so reducing the pressure in the cylinder 14, causing liquid to flow through the siphon. When used as a hand pump the valves 10, 12 are released. If only required for priming a siphon, then the valves 10, 12 may be omitted.
Patent GB-1303828-A (GB)
IPC: F16K31/53
Filed: 1970-04-28
Abstract: 1303828 Valves ZAKLAD DOSWIADCZALNY PRAS AUTOMATYCZNYCH HYDOMAT PRZY ZAKLADACH MECHANICZNYOH TARNOW 28 April 1970 [28 April 1969] 20442/70 Heading F2V Slide valve for hydraulic control of machines, e.g. for synchronizing the operation of units driven by boosters or servomotors, comprises a spool valve member 5 reciprocated by two pressure levers 7, 8 operating on opposite ends of the member. The levers are controlled by two mutually coupled shafts 11, 12 through adjustable cam rings 13 on the shafts. With a view to avoiding the drawbacks of electric control systems, the shafts may be driven by an hydraulic motor (17), Fig. 2 (not shown), controlled by a speed governor (18) through worm gearing (19-22). A group of such valves are banked together, Fig. 3 (not shown), and programmed by adjustment of the cams.
Patent GB-945305-A (GB)
Title: An electric circuit breaker
IPC: H01H33/16
Filed: 1960-06-10
Abstract: 945,305. Arcing preventing in switches. LICENTIA PATENT-VERWALTUNGSG.m.b.H. June 10, 1960 [June 10, 1959], No. 20489/60. Heading H2B. A circuit breaker comprises a bridging contact 6 and fixed contacts 7, 8, connected in parallel with a variable resistance formed by a stationary electrode 12 and a movable cone-shaped electrode 2 immersed in a conducting liquid contained in a metal casing 1 of which electrode 12 is part. The contacts open before the circuit though, the liquid is interrupted and the resistance of the liquid circuit is such that the voltage drop across the contacts on opening is insufficient for arcing to occur, viz. not greater than 10 volts. Compressed air supplied through an opening 13 below a piston 4 on a rod 3 carrying electrode 2 causes the piston to move upwards and contact 6 to be lifted off contacts 7, 8. Cone 2 is raised from its seating against electrode 12 and the electrode gap increases until the cone reaches an upper position and the conducting liquid level has fallen from 11 to 18 with interruption of the liquid circuit. Insulation 16 prevents discharge between the point of the cone and the casing wall, while cooling ribs 17 prevent excessive heating of the liquid. The resistance of the liquid is increased as electrodes 2, 12 separate, by gradually replacing the liquid, e.g. salt solution, with distilled water, oil, hexane or other insulating liquid. Compressed air enters through opening 14 to reclose the breaker. The contacts are metal or carbon, and a plurality of such contact arrangements may be connected in series.
Patent GB-710369-A (GB)
Title: Road vehicle direction indicators
Inventor: BAKER ALFRED DICKENS
IPC: B60Q1/34
Filed: 1951-08-31
Abstract: 710,369. Road-traffic signals on vehicles. LUCAS (INDUSTRIES), Ltd., J. Aug. 12, 1952 [Aug. 31, 1951], No. 20565/51. Class 118 (2). A body part for a road vehicle direction indicator of the pivoted-arm type is made from a metal sheet a (Fig. 1) which is shaped along one edge to provide inturned flanges b (Fig. 4) along the front of the body part when it is bent across a transverse centre line to form the sides and ends of the body part. A notch c (Fig. 1) extends across about one half of the sheet a, and in the shaping operation to form rounded ends e (Fig. 4) this notch provides a slot i which may be closed by a decorative feature made from rubber or plastic. The ends of the sheet a which form the lower end of the body part are provided with an interlocking tongue g and notch h respectively. The rear open edge of the body is closed by a separately formed back piece (not shown), adapted to be inserted between the rear edges of the body part and provided with lugs for engagement with screws inserted through the body part, this back piece being adapted in any convenient manner to carry the pivoted arm and means for actuating it.
Patent GB-1037307-A (GB)
Title: Bellows actuated electric switch
Inventor: MCCLEERY ROBERT NORTON
IPC: B60S1/48
Filed: 1963-05-23
Abstract: 1,037,307. Windscreen cleaning systems. DELMAN CO. May 23, 1963, No. 20587/63. Heading A4F. [Also in Division H2] A windscreen cleaning system in which a wiper unit 12 operates before and stops after a washer unit 11, comprises an electric wiper motor 28 which drives a blade 27, an electric fluid pump 23 which transmits fluid from a reservoir 19 to a nozzle 36, a control switch 33 operated by a knob 36 which controls a vacuum control switch 37 and two pressure-actuated switches 38, 39 (see Division H2). On rotation of the knob 36, the wiper unit is connected to the battery 29, but when the knob is pulled the vacuum switch 37 connects a source of sub-atmospheric pressure to the switches 38, 39. The switch 38 has a pair of leaf contacts one on each arm of a flexible member actuated by bellows 64, which make contact before contacts 52, 53, thus operating the wiper unit before the washer unit. In another embodiment the two switches may be incorporated in a single switch (Fig. 7, not shown).
Patent GB-141593-A (GB)
Title: Improvements in shock absorber for crutches and the like
IPC: A61H3/02
Filed: 1919-08-22
Abstract: 141,593. Fanning, W. F. Aug. 22, 1919. Crutches; limbs, artificial.-In shock - absorbing devices for crutches &c., means are provided for adjusting the resisting force of the yielding-device so as to deal with variable shocks or weights. As shown in Fig. 1, the spring 18 is held between a turned-up flange 16 of the containing-tube 10 and a boss 24 on a nut 23 through which the screw 21 passes. The head 22 of the screw rests against the lower end of the staff. The screw may be fitted with a check-nut 28, but this may be dispensed with, and the tension of the spring, and incidentally, the length of the crutch &c., may be adjusted by merely turning to lower section 10 on the section 11, the friction of the parts being sufficient to cause advance of the nut on the screw. The ferrule may be fitted on the outside of the tube 10, as shown, and held by ribs 19, or be arranged to screw into the interior of the tube 10.
Patent GB-819819-A (GB)
Title: Improvements in or relating to miners' safety lamps
IPC: F21L23/00
Filed: 1956-07-05
Abstract: 819,819. Miners safety lamps. SMITH, H. M. N. July 4, 1957 [July 5, 1956; Oct. 19, 1956], Nos. 20813/56 and 31809/56. Class 75(4) A miners safety lamp is provided with a magnifying viewing lens at a level which enables the flame of the wick to be viewed through the lens In one form the flue is made of steel, the lens being cemented or rubber sealed in an aperture therein or in a lateral extension to the flue. In an alternative form, the lens 6 is carried by a plate 7 the ends of which are wholly or partly held around adjacent columns 4, 5 supporting the bonnet of the lamp so that it is either permanently secured to both columns, secured to and pivoted on one column or detachable. Pins 10 are provided in the columns 4, 5 to regulate the level of the plate. The lens may be constructed of heat and shock resistant armoured glass and may be associated with a light filter.
Patent GB-647349-A (GB)
Title: Improvements in or relating to dead bait and dead bait tackle for fishing
Inventor: WATERTON EDMUND ALFRED
IPC: A01K83/06
Filed: 1947-07-31
Abstract: 647,349. Fishing. WIZARD TACKLE, Ltd. July 31, 1947, No. 20818. [Class 48] For fishing there is employed a preserved dead bait, e.g. an ungutted sprat, prawn or shrimp coated with a water-impermeable flexible substance and having internally, independently of a carrier of a flight of hooks, one or more deformable inserts. e.g. copper or galvanized iron wire, the inserts being bent as desired in order to impart a life-like spin to the bait in the water. In Figs. 1 and 2 a lead tube 1, passing through the body of a silver sprat from the mouth to the belly, carries a hook carrier 4 enlarged at 6 to prevent the drawing of the hooks too close to the bait, and adjacent to the spine of the sprat is a deformable insert 8. Specification 647,343 is referred to.
Patent GB-1055199-A (GB)
Title: Manufacture of interconnected articles
IPC: B29C45/00
Filed: 1964-05-20
Abstract: 1,055,199. Moulds. P. MUNDT, [trading as GEIMUPLAST PETER MUNDT KOMM. GES.]. May 20, 1964 [May 27, 1963; July 5, 1963], No. 20828/64. Heading B3F. [Also in Division B5] Apparatus for the continuous manufacture of chains etc., e.g. from cast aluminium, comprises four mould sections A, B, C, D (Fig. 1, not shown), provided in their parting planes with at least two runners 11, 12 opening into recesses 20, 21 for moulding the chain links, and with a further recess 29 (Fig. 2), for receiving the upper half of a previously moulded link. The remaining moulded portions are located in recesses 26, 27, 28 formed between the mould sections. The recesses 26, 27 contain stops 22 adapted to be engaged by lugs projecting from one of the links. These lugs are formed in an extension of the runner 12 and in a recess 23. The stops 22 ensure correct location of a link in the recess 29. Severing knives 24, 25 are provided for removing excess moulded portions from. the links. The mould sections A, B are mounted in a housing 1 (Fig. 1) secured to a stationary part 3 of the machine while the sections C, D are mounted in a housing 2 secured to a movable part 4. Guide rails 10 are provided between the mould sections and their housings. A fixed wedge-shaped stop 5 co-operates with a groove 15 to effect separation of the sections C, D when the part 4 moves away from the part 1. Opposed sections A, D and B, C are coupled by guide rods 7. Two injection nozzles (not shown) are provided, one injecting in a horizontal plane through a recess 19 (Fig. 1) and the other in a vertical plane through the runner 12.