baber/WOPTO huggingface dataset:
Patent GB-1179079-A (GB)
Title: Improvements in or relating to Telephone Exchange Systems
IPC: H04Q3/42
Filed: 1968-06-28
Abstract: 1,179,079. Automatic exchange systems. SIEMENS A.G. 28 June, 1968 [29 June, 1967], No. 31100/68. Heading H4K. In a telephone exchange circuit comprising a plurality of stores each adapted to store a coded representation of a digit dialled by a different subscriber and a counter or other cyclic circuit driven by an impulse generator, dialling pulse trains taken from the impulse generator are individually interrupted when the output of the stepping circuit coincides with a corresponding stored coded representation. As shown each dialling store Wsp1, Wsp2 &c. is individually seizable by a different subscriber having coded dialling facilities and can store one dialled digit by the simultaneous closing of two out of 5 contacts such as a11 to a15. As an example of operation it is assumed that the stores Wsp1 and Wsp2 are seized by different subscribers during the same cycle. Seizure of a store energizes a relay (not shown) closing a contact such as 1b1 or 2b2. The first of these to close energizes a relay AZ1 in the common equipment ZE. The resulting changeover of contact 3az1 of this relay enables relay AN1 and AN2 in the seized stores and enables a relay AZ2 which in turn enables a relay AZ3. Relay AZ3 disables relay AZ1 allowing the contact 3a Z1 to return to its former condition. The relays AN1 and AN2 have closed contacts 13an1 and an2 and each hold over the corresponding closed pair of two out of five contacts a11 to a15 and a21 to a25 and contacts I to V. Other stores seized after this point have no effect until the following cycle. A pulse generator JG is enabled by closure of a contact 8az 3 of the relay AZ3 and a counter KE commences to cycle from zero count. The counter enables two out of five relays I to V for each count in accordance with the two out of five code. Each relay I to V when enabled opens its contact I to V. As the counter passes through a count corresponding to one of the digits stored in the stores Wsp1 or Wsp2 the corresponding relay AN1 or AN2 in that store is released as none of the paths through a11 to a15 or a21 to a25 and corresponding contacts I to V is complete for that store. Each store has an individual relay J which up to this point repeats the pulses from the generator JG. Thus the relays J in the stores seized during a cycle repeat different numbers of the pulses from the generator JG during that cycle in accordance with the digits entered in those stores. When the last of the energized relays AN1 to ANn releases the relay AZ3 is released re-setting the common equipment and immediately commencing the next cycle.
Patent GB-777139-A (GB)
Title: Improvements in or relating to apparatus for producing air foam for fire extinguishing purposes
IPC: A62C5/00
Filed: 1954-10-28
Abstract: 777.139. Making foam. FOAMITE. Ltd.. and SHAPLAND, J. D. June 6, 1955 [Oct. 28, 1954], No. 31166/54. Class 47. In the production of foam, air under pressure is supplied through a conduit 15 and is introduced at two or more spaced points into a foam forming liquid supplied through a conduit 1 and nozzle 10. Air enters through openings 8 and further air is introduced as the foam leaves a tubular member 11 entering between the latter and a second tubular member 14 arranged within a foam conduit 2. The air passes through openings in a ring 12 supporting the tubular member 11. The conduit 15 includes a check valve 17.
Patent GB-1082764-A (GB)
Title: Refrigerators having freezer and storage compartments
IPC: F25D21/14
Filed: 1965-07-22
Abstract: 1,082,764. Refrigerators. GENERAL MOTORS CORPORATION. July 22, 1965 [July 29, 1964], No. 31237/65. Heading F4H. In a refrigerator having a freezer compartment containing an evaporator 72 above a storage compartment an automatic defrosting cycle is controlled by two switches, one 147 responsive to the temperature of the heat exchanger 131, 133 and the other 149 responsive to the temperature of air in a duct 64 leading from the storage compartment, the switches being so arranged in an electric control circuit that both switches must move to the defrost position before defrosting commences. This arrangement ensures that switch 147 alone cannot initiate defrosting when refrigerant is unavoidably drawn into the suction conduit 133 at the start of every refrigerating cycle, neither can switch 149 initiate defrosting due to high room temperature causing it to move to the defrost position or during initial starting conditions. A further thermostatic control 151 connected to a thermo-sensitive tube and bulb 159 stops refrigeration at a temperature of 5‹ F. The walls of the freezer compartment are insulated with a plastic foam material and have an inner liner of a plastic or sheet metal, similarly the storage compartment walls are insulated with glass fibre and lined with a plastic or sheet metal. The rear wall of the freezer is removable and mounts the refrigerating components and is formed of an inner plastic liner, an outer metal casing and cast polyurethane foam insulation therebetween. Ice trays positioned on the base of the freezer compartment are provided with a cover beneath which air is forced from a motor driven fan in the same compartment. The fan delivers three-quarters of its output into the freezer and a quarter of its output into the storage compartments. When the door is opened the fan is stopped but the main compressor unit continues to run. A superheat coil is provided beneath a drain pan to evaporate the melting frost. A solenoid operated 4-way valve 169 changes over the connections from the compressor to the condenser and evaporator to cause defrosting.
Patent GB-313418-A (GB)
Abstract: 313,418. Dreyfus, H. Jan. 10, 1928. Acetic and other aliphatic anhydrides are produced by heating the vapour of the acid in admixture with sulphur dioxide, for instance 2-20 per cent or more of sulphur dioxide. The reaction may be effected at 200-900‹ C. and in presence of filling or contact materials such as carborundum, pumice or kieselguhr. The apparatus may be a fireclay or fused silica tube. The sulphur dioxide may be added by passing a stream of the gas with or without air through boiling acetic or like acid, or the liquid acid containing the desired quantity of sulphur dioxide may be injected into the heated tube. The anhydride may be separated in any suitable way, for instance by fractional condensation in a column; or the vapours may be passed through a solvent for the anhydride such as chlorbenzene, p-dichlorbenzene, benzyl ether, tetrachlorethane, paraffin oil, triacetin, phenetol, anisol, one or more cresols, and p-cresyl acetate; or the vapours may be admixed with the vapour of an entraining liquid such as benzene, carbon tetrachloride, petrol, mixtures of such substances, or mixtures of ether and petroleum ether as described in Specification 303,772, the water vapour being carried away by the vapour of the entraining liquid while the anhydride condenses; or the vapours may be led under the surface of an extracting liquid such as benzene. chloroform, mixtures of ether or chloroform with a hydrocarbon such as light paraffins, gasoline, kerosene, benzene and its homologues, as described in Specification 298,667; or the vapours may be passed over water-binding substances such as bisulphates, pyrosulphates, zinc chloride, calcium chloride or a phosphoric acid, as described in Specification 289,972. The anhydride may be purified by distillation over anhydrous sodium or other acetate or it may be treated with chlorine in presence of sodium acetate and then distilled, as described in Specification 270,809. The initial material may be dilute or concentrated. In an example, sulphur dioxide is passed through boiling glacial acetic acid and the vapour mixture is passed through a fireclay or fused silica tube filled with balls of pumice or kieselguhr and heated to 450-600‹ C., the reaction gases being then passed over sodium pyrosulphate or bisulphate at 150- 350‹ C.
Patent GB-1322426-A (GB)
Title: Load lifting jacks
IPC: B66F3/12
Filed: 1971-07-05
Abstract: 1322426 Lever jacks AISIN SEIKI KK 5 July 1971 [3 July 1970 (3)] 31360/71 Heading B8J A jack has a load-engaging head 8 on a cantilever lifting arm 7 pivoted at one end on a nut 17 threaded on a drive screw 15 carried by rollers 19 in guide rails 1. A link member 29, 30 is pivoted at one end at the central portion 31 of the arm 7, while its other end may be selectively engaged in one or other of a pair of notches 13, 14 the latter of which gives an initial lift to the head 8 without operating the drive screw 15. The notches 13, 14 are provided in flanges 12 on a base member 3 and a guide 35 ensures that the link member 29, 30 engages one or other of the pairs of notches 13, 14. The rails 1 are pivoted at 4 to the base member 3 to allow the head 8 to follow the movement of the load without the jack sliding along the ground.
Patent GB-272362-A (GB)
Title: Improvements in imitation fires
IPC: F24C7/00
Filed: 1925-12-14
Abstract: 272,362. White, J. C., and Dickinson, H. A. Dec. 14, 1925. Electric radiators.-An imitation fire comprises in combination a casing, a source of light, a sheet or pieces of translucent glass having an irregular surface, and a perforated screen of metal or glass arranged between the first-mentioned sheet and the source of light. In Fig. 1 the casing is fitted with heating elements 2, 3, perforated pieces of translucent glass 6, 13, 14 having an irregular surface, imitation coal or lumps of glass 18 supported by wire mesh 17, an adjustable lamp 4 and a fan 7 having co-operating magnets 11, 12 and mounted on a hinged door 9, and a reflector 5. An adjustable shutter 20 co-operates with holes 19 in the casing to control the fan speed. The fan blades may be corrugated or perforated. In Fig. 7 the casing 45 is fitted with an irregularly surfaced translucent glass 53 the lamp being fitted with a reflector and surrounded by an irregularly perforated screen 49 rotated by a fan 48. A device may be provided for starting the fan. Specification 272,836 is referred to.
Patent GB-192531-A (GB)
Title: Improvements in collapsible cases and crates
IPC: B65D6/16
Filed: 1921-11-24
Abstract: 192,531. Burgess, H. O., and Bibby, P. H. Nov. 24, 1921. Knock-down boxes. -In a collapsable crate or packing case of the type in which the sides, ends, base and lid are made separately, the base 3, 4, which may be formed with or without shallow sides 1, 2, is provided with upstanding hooks 10 which engage over a horizontal strip 6 on the sides 5 of the crate to prevent the sides 5 bulging outwardly or lifting vertically relatively to the base. The ends 18 are fitted between the sides and are restrained from vertical movement by strips 18 on the inner face of the sides. The ends and the sides are also prevented from bulging outwardly by right-angled metal strips secured to the ends and engaging with metal bridge-pieces on the sides. The lid 22, which is fitted within the sides and ends, is provided with fastening devices, comprising either channel-shaped members 32, Fig. 6, pivotally mounted upon the sides and engaging a recess 33 to secure, the lid in position, or a hook-like member 34, Fig. 7, engaging a slot 37 in a metal piece 36 secured to one side and a slotted member 39, Fig. 8, engaging a hinged member 43 secured to the other side.
Patent GB-433116-A (GB)
Title: Improvements in or relating to the anti-coagulation and preservation of liquid rubber latex
IPC: C08C1/06
Filed: 1933-11-11
Abstract: Rubber latex is preserved by adding to it in aqueous solution sodium or potassium silicate and potassium carbonate.  When certain fillers, such as compounds of sodium, potassium, and zinc are compounded with the latex, hydrochloric acid also may be added.  In an example (parts by weight) 10 parts of potassium silicate and 2 parts of potassium carbonate are dissolved in 4 parts of soft water acidulated with 1 per cent of hydrochloric acid.  Then 5 per cent of this stabilizing solution, calculated on the solid rubber content of the latex, is added to latex, vulcanized or otherwise, but preferably concentrated. A cement-like filling composition is made as follows: 15 parts potassium silicate, 5 parts lithopone and 0,5 parts magnesite are mixed and added to 30 parts calcium carbonate, 10 parts precipitated silica, and 5 parts hydrated magnesium silicate, and the whole is ground with 10 parts of the stabilizing solution mentioned above. This cement composition is then mixed with the above-mentioned stabilized latex.  This latex-cement composition, which may consist of 20 parts latex to 80 parts cement, may be used for covering fabrics, surfacing floors and other purposes. In the cement composition the potassium silicate may be replaced by sodium silicate and the lithopone by titanium white or zinc white.  Latex containing ammonia as a preservative may be additionally stabilized by the method of this invention.
Patent GB-650652-A (GB)
Title: An improved bearing
IPC: F16C35/02
Filed: 1948-12-06
Abstract: 650,652. Bearings. MORGAN, R. K. Dec. 6, 1948, No. 31494. [Class 12 (i)] A shaft bearing comprises a base-plate 5 and supports 6, 7 welded thereto which engage the externally reduced end portions of a separate bearing member 8 having a bore 13 of the desired size, thus supporting the bearing member and locating it axially. The baseplate is secured to a mounting 9 by bolts 10. Additional recesses may be formed in the external surface of the member 8 intermediate its ends, and may be engaged by intermediate supports pressed out of the base-plate 5. In a modification, the supports 6, 7 are formed integrally with the base-plate 5. The bearing member 8 may be formed of sintered bronze. An oil hole 14 is provided in the member 8.
Patent GB-366067-A (GB)
Title: Improvements in or relating to electric ship propulsion systems
IPC: H02P9/06
Filed: 1930-10-21
Abstract: 366,067. Systems for transmitting mechanical power. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and COATES, H. J., of General Electric Co., Engineering Works, Witton, Birmingham. Oct. 21, 1930, No. 31540. [Class 38 (iv).] In a ship propulsion system where overloading of alternating current generators or motors may occur under certain running conditions the output of the generators is automatically limited at any speed or over a range of speeds when the maximum power of the generator or generators in use is greater than that of the motor or motors in operation. The output limiting means restricts the supply of motive fluid to the prime movers. Means may be provided whereby both output and speed of the generators may be reduced. Auxiliary switches 1 .. 4 each associated with a switch controlling the motor connections of a motor and closed only when the motor is inoperative and auxiliary switches 5, 6 each associated with a generator and only when the generator is inoperative and connected in parallel with each other. These auxiliary switches are in series with electrically operated devices 10, 21 controlling the governor setting of the respective prime movers and, through auxiliary switches 11, 12 each associated with a generator and closed only when the generator is operative, also in series with electrically operated devices 13, 14 controlling the throttle valves of the respective prime movers. Thus with one generator or one motor inoperative the speeds of both generators are limited and when both generators are operative but not all the motors the output is limited at all speeds of the generator. Specification 352,615 is referred to.
Patent GB-465792-A (GB)
Title: Improvements in wireless receivers, for use for example in ships or aircraft
IPC: G01S1/02
Filed: 1935-11-14
Abstract: 465,792. Valve circuits for wireless reception. DENMAN, R. P. G. Nov. 14, 1935, No. 31588. [Class 40 (v)] A superheterodyne receiver is associated with two aerials, one A1 associated with the main input to the receiver and the other A2 coupled to the intermediate frequency amplifier and adapted to receive signals of this frequency. The Figure shows a high frequency amplifier HF, frequency changers D1, D2 and intermediate frequency amplifiers IF1, IF2 and a super-regenerative detector D3 the quenching frequency for which is fed to the screen-grid and filtered from the audio - frequency amplifier F by the choke L and condenser C. As shown the second input is to the second amplifier IF2 but alternatively, separate inputs to each of the amplifiers, or an input to amplifier IF1, may be used. The receiver is used for aircraft landing, one aerial receiving the main beacon, the second aerial receiving signals from one or more marker beacons, while a third aerial system may receive telephony. Specification 405,727 is referred to.
Patent GB-604081-A (GB)
Title: Improvements in electric irons
IPC: D06F75/36
Filed: 1945-11-23
Abstract: 604,081. Electric irons. MARKS, S. Nov. 23, 1945, No. 31678. [Class 39(iii)] Means for locating and fixing the cover of an electric iron on the base member A consists of a bridge piece C of inverted-U shape which is provided with flanges D, E adapted to be screwed to the base, laterally-extending fingers H, H<1>, I, I' on the flanges D, E for engaging and seating on the upper edge of the base, and a screwthreaded hole M in the base of the U- member for engagement by a bolt passing through the cover. The fingers H, H<1>, I, I' seat on the upper edge of an upstanding peripheral wall B of the base, and, by engaging recesses in the cover, serve to locate and prevent displacement of this member when it is supported on the wall B. A rearward extension K on the bridge piece serves to embrace and hold the electrical socket member L in position on the base.
Patent GB-1268991-A (GB)
Title: A combined furnace arrangement and emission control system
IPC: F23J15/00
Filed: 1970-06-30
Abstract: 1,268,991. Controlling furnace operation. TORRAX SYSTEMS Inc. 30 June, 1970 [10 July, 1969], No. 31694/70. Heading F4B. [Also in Division G3] A system for controlling the discharge from a shaft type incinerator furnace 10 chargeable near the top and having a fired hearth near the bottom comprises a secondary combustion chamber 44 having a tangential inlet connected by a conduit 42 with a lateral gas outlet 12 from the furnace and an outlet connected by a conduit 46 with a waste heat boiler, and a fan 66 connected by a conduit 62 to the outlet of the waste heat boiler and by a conduit 102 with a filter 110 discharging to the atmosphere, the flow of gas in the conduits 42, 62 and 102 being regulated by valves 24, 64 and 104 connected to controllers 34, 78 and 118. The controller 34 responds to the difference in pressure between a point 36 in the furnace and a point 38 communicating with the atmosphere to adjust the valve 24 so that the pressure in the outlet 12 is maintained slightly below atmospheric while controller 74 adjusts the valve 64 to maintain a constant pressure differential between the points 76 and 78. A thermocouple 116 connected to the controller 118 closes the valve 104 if a preset temperature is exceeded so that the gases are passed directly through a conduit 112 and a swing valve 114 to atmosphere. Alarms are energized when the valve 104 is closed or if the vibration level from the fan exceeds a predetermined amount. If the vibration does not reduce after a predetermined time, the fan is closed down, the valve 24 is moved to a position of minimum opening and a steam aspirator 40 is actuated to block the outlet 12. The secondary combustion chamber 44 receives its air supply through a valve 82 operated by an air motor 84 connected to a controller 94 which may be selectively connected by a valve 100 with a pair of oxygen analyzers 96. Additional fuel gas may be supplied to the chamber through a valve 88 operated by an air motor 90 connected to controller 128 having a selector switch 132 and a pair of thermocouples 130. Cooling water for the valve 24 and the bearings of the fan 66 operate temperature sensors connected to a recorder 146 which energizes alarms if predetermined values are exceeded. A further alarm operated by a controller 136 is energized if the temperature of the refractory wall of the chamber 44 rises unduly. Specification 1,198,603 is referred to.
Patent GB-230925-A (GB)
Title: An improved process and apparatus for smelting tin and/or other ores
IPC: F27B3/18
Filed: 1923-12-20
Abstract: 230,925. Jackson, J. E. Evans-, (Stroman, M.). Dec. 20, 1923. Metallurgical furnaces; reverberatory furnaces; charging.- Tin and other ores are smelted in a shaft f and the reduced metal passes to the hearth chamber e, the communicating openings h being submerged in the bath of molten metal and slag so that the furnace gases have no access to the ore &c. in the shaft. Ore, fuel, and flux are fed to the shaft through a tube i having its lower end cut off at an angle, so that the descent of the material can be watched through an inspection opening j<1> in a casing j, through which the reaction gases are exhausted. The furnace has tap-holes e<2>, e<3> for metal and slag and is enclosed in a metal casing, which may have an opening for the discharge of molten metal which percolates through the hearth. A furnace of the Siemens open-hearth type may be used.
Patent GB-182056-A (GB)
Title: Improvements relating to powder puffs
IPC: A45D33/34
Filed: 1921-11-30
Abstract: 182,056. Jacobs, J., and Jacobs, C. Nov. 30, 1921. Powder-puffs.-A powder-puff is made by taking apiece of fur a, preferably beaver, of circular or other shape, sewing a lining b of silk or other material to the fur, threading a draw-string c through the fur near its edge, and drawing up the edge of the fur. Kapok fibre d or other filling-material is then inserted beneath the lining and the lining closed. A button, bow, or the like e is provided to serve as a handle.
Patent GB-657525-A (GB)
Title: Improvements in and relating to mirrors particularly for use with vanity cases, compacts or the like
IPC: A45D33/32
Filed: 1948-12-13
Abstract: 657,525. Cosmetic cases. THIMBLETHORPE, I. S., THIMBLETHORPE, V.,. THIMBLETHORPE, W. S., and AYLWARD, J. G. Dec. 13, 1948, Nos. 32135/48. and 2532/49. [Class 18] A case for cosmetics has lighting means: for illuminating the face, the light shining through an aperture designed so that shadow may be cast on the eyes. The battery 12 and bulb 11 are housed behind a plate 3 having an aperture 9 to a compartment for cosmetics or trinkets and a further shaped aperture 10 in front of the bulb, portions 10a casting the shadow on the eyes. The case may have two lids, 5, 6 the lid 6 acting as a stand for the case and covering a powder tray 2. Part of the tray 2 is covered by a flexible plate 26 forming a well 27 for powder closed by a powder puff. The plate 26 is pressed to release the puff. Mirrors 7, 8 may be fitted. A lens 21 permits the case to be used as a torch. The plate 3 may comprise a mirror, the aperture 10 being formed by absence of silvering or thin silvering. A lid may include a mirror having an aperture in the silvering through which the light may shine. The Provisional Specifications state that the light may be switched on or off by opening or closing a lid.
Patent GB-1059444-A (GB)
Title: Improvements relating to arrangements for measuring electrical power consumed by a load
Inventor: BILLING PETER JAMES
IPC: G01R21/08
Filed: 1963-08-14
Abstract: 1,059,444. Power measurement. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 30, 1964 [Aug. 14, 1963], No.32158/63. Heading G1U. A power measuring device for e.g. a mining gate and box wherein threephase conductors A, B, C are connected from source S to load L e.g. a coal cutter; comprises annular magnetic core CO threaded by conductors A, B, having a radial flux gap containing a Hall plate H whose current input electrodes e are energized from the voltage between A, B over transformer T and phase correction network PC, which may be omitted if high accuracy is unnecessary. A direct voltage at output electrodes V represents 3 VI cos # and deflects a moving coil meter (not shown) to read consumed power. The Power Specn. refers to measurement of power in a single phase supply whereas one conductor threads the annular core.