baber/WOPTO huggingface dataset:
Patent GB-685259-A (GB)
Title: Improvements in or relating to resistor materials and high temperature coefficient resistors made therefrom
IPC: H01C7/04
Filed: 1950-12-20
Abstract: 685,259. Metal oxide resistors; temperaturevariable resistors. WESTERN ELECTRIC CO., Inc. Dec. 20, 1950 [Dec. 23, 1949], No. 31021/50. Class 37. The thermistor shown in Fig. 1 comprises a metal oxide plate or flake resistance element 11 which is the end product of a series of manufacturing operations as follows: (a) mixing metallic oxide particles of the order of 10<SP>-6</SP> cm. diameter with coarser metallic oxide particles, for example of the order of 10<SP>-4</SP> cm. diameter, and with a long-chain polymer temporary binder and a solvent for the latter; (b) spreading the mixture as a deposit or layer on an optical flat or other smooth surface and permitting the solvent to evaporate; (c) removing the dried deposit from the optical flat, for example by soaking with water; (d) drying this product and afterwards cutting into flakes of the required size; (e) firing these green or uncured flakes to remove the binder and yield sintered flakes of which 11 is exemplary. A first manufacturer may be responsible to stage (d) inclusive, i.e. batch production of uncured resistor flakes, and a second manufacturer receive supplies of the flakes and carry out stage (e). In the embodiment described stages (a) and (d) are given with respect to the following details. Stage (a) comprises milling 6 grams of a mixture of nickel and manganese oxide particles of from one to one-half micron diameter with 6 grams of polyvinyl butyral as the temporary binder and 12 c.c. of solvent until the oxide particles are reduced to about one hundredth the original size and then adding 7 grams of two micron diameter particles of the same oxide mixture and further milling this totality mixture. The first milling takes six hours and produces a gel mixture and the second milling proceeds for one hour and achieves uniform suspension of the larger diameter particles throughout the gel. In stage (d) the polyvinyl butyral binder is driven off by depolymerization by gradually raising the temperature to 400‹ C. The sintering process in stage (d) according to one instruction involves raising the temperature according to a curve, Fig. 4 (not shown), up to from 1000‹ to 1300‹ C. in an interval of about an hour and then gradually cooling to a soak temperature of about 860‹ C. and holding at this temperature for 16 hours and followed by cooling in the furnace employed. In modifications to the sintering procedure the temperature may be dropped from the peak temperature without a low temperature soak or a lower peak temperature may be employed with a soak of from 16 to 64 hours at the peak temperature. Suitable binders include isobutyl methacrylate and cellulose acetate butyrate as well as polyvinyl butyral. As additions or alternatives to manganese and nickel oxides there may be employed cobalt, copper, iron, zinc and uranium oxides. Specification 638,436 is referred to.
Patent GB-1161360-A (GB)
Title: Circuit for Starting Electrical Discharge Devices
Inventor: WAYMOUTH JOHN F
IPC: H05B41/04
Filed: 1967-07-05
Abstract: 1,161,360. Control systems for vapour discharge lamps. SYLVANIA ELECTRIC PRODUCTS Inc. 5 July, 1967 [5 July, 1966], No. 31040/67. Heading H2H. A starting circuit for a discharge lamp such as a high pressure mercury vapour lamp T comprises an inductance L in series with the lamp and a series circuit of a capacitor C2 and a bi-directional voltage breakdown device D connected across the lamp terminals t 1 , the breakdown voltage of the device D being less than the voltage of the source t s . During starting, breakdown of the device causes high voltage pulses to be imposed on the source voltage to cause striking of the lamp T. In another embodiment two devices D connected in series are used with parallel connected voltage dividing resistors. Furthermore, a resistor and a thermally operable switch may be connected in series with the device D and capacitor C2, the thermal switch protecting the capacitor C2 from voltage surges due to an attempted restarting of the lamp too soon after it has been extinguished.
Patent GB-363450-A (GB)
Title: Improvements in or relating to rotary printing machines
IPC: B41F13/54
Filed: 1930-10-16
Abstract: 363,450. Rotary printing- machines. HOE & CO., Ltd., R., 109, Borough Road, London.- (Hoe & Co., Inc., R.; 138th Street, New York, U.S.A.) Oct. 16, 1930, No. 31050. [Classes 100 (i) and 100 (ii).] A multicolour rotary printing- machine is constructed with two presses A, B arranged side by side, each press being formed of a number of forme cylinders 1 .. 5 adapted to carry two plates wide and two plates around. The press A is driven by a motor 34 which drives a shaft 33 geared to separate vertical shafts 37, 41 fitted with bevel gears which can drive the separate impression cylinders of the couples either clockwise or anticlockwise. The impression cylinders of the press B can be driven by an independent motor, or by means of a clutch 54 the shaft 33 may be geared to a similar shaft 46 which drives the impression cylinders of the press B in the desired directions by means of bevel gearing. The webs W<1>, W<2> to be printed may be fed from separate rolls R<1>, R<2>, or from a wide roll R which is slit in two and led by turning bars 14, 16 and guide rolls 15, 17, 12, 13 to the first printing couples of the presses. Each press may be arranged to print a web in three colours on one side and to perfect it in two colours, or to print the web -in black or colour on one side, and then to print in four colours on the reverse side. For perfecting in four colours a web may be printed with four colours on one side by the press A, and be transferred to the press B for perfecting in four colours. The printed webs may be directed to either of two folders C, D arranged at right-angles to the run of the web through the presses, and may pass direct to the folders or be reversed by means of bars 27 .. 30 and guide rollers in passing to the folders. The webs may be associated together before folding by either folder or be folded separately.
Patent GB-805155-A (GB)
Title: A process for the preparation and purification of alkyl mercuric salts
IPC: C07F3/10
Filed: 1956-10-11
Abstract: A process for the preparation of alkyl mercuric salts comprises (a) condensing alkaline solutions of alkyl mercuric salts with acetylene to form alkyl mercuric acetylides, (b) isolating said alkyl mercuric acetylides, and (c) reacting them with an inorganic or organic acid in an inert solvent at a temperature between 30 DEG  and 150 DEG  C. The acetylides are filtered off and washed free from impurities by water, dioxane, methanol or ethanol.  For the preparation of the salts from the purified acetylides, the latter are suspended in a medium such as water, ethanol, isopropanol, benzene, toluene, xylene, hexane, cyclohexane, heptane or octane and the acid added with slight heating.  Suitable acids include hydrochloric, sulphuric, nitric, phosphoric, trichloracetic, boric, acetic, propionic, butyric, stearic, palmitic, maleic, benzoic and naphthoic acids.  Unreacted acetylide and impurities may be filtered off.  In an example a solution of methyl mercuric hydroxide which is alkaline to phenolphthalein and contains sodium sulphate as an impurity is treated with gaseous acetylene until precipitation ceases.  The methyl mercuric acetylide is filtered off, washed with distilled water, and suspended in N/2 sulphuric acid at 70 DEG  C.  The solution is filtered and concentrated, methyl mercuric sulphate crystallizing out.  Other examples describe the preparation of methyl mercuric stearate and butyl mercuric acetate. Specification 805,156 is referred to.
Patent GB-979187-A (GB)
Title: Wire dispensing means
IPC: B65H75/40
Filed: 1962-08-14
Abstract: 979,187. Unreeling. C. GOODALL, and M. GOODALL. July 19, 1963 [Aug. 14, 1962], No. 31103/62. Heading B3E. [Also in Division B8] A rotatable wire coil holder, intended for use in dispensing, for example fencing wire, comprises a base rotatable about a substantially vertical axis, a plurality of members attached to the base and adapted to protrude into the interior of the coil and one or more elements slidingly attached to the members so as to rest against the end of the coil to prevent the coil springing in an axial direction. As shown, the coil holder comprises a hoop 10 having a plurality, e.g. three, of radial spokes which at their inner ends are connected to a tube member 12, the latter being mounted on a vertical stationary spindle 13 so as to rotate thereabout. A plurality, e.g. three, of spaced V-shaped members 16 each attached at one end to the tube 12 and at the other end to a radial spoke form a core for the coil 17 and carry sliding elements 18 which are slidingly attached by rings 20 to the members 16. Pressure exerted at the outer end of the elements 18, as occurs, for example by the springing action of the coil, does not cause sliding movement of the elements 18 but tends to jam the elements against the members 16; pressure exerted adjacent the members 16 causes sliding movement, as required, for example, for installing a coil on the holder. The spindle 13 projects from a support 14 to which handles 15 are attached for transport purposes.
Patent GB-1139216-A (GB)
Title: Improvements in or relating to respirators
Inventor: FOUNTAIN ALEC WILLIAM
IPC: A62B18/10
Filed: 1965-07-21
Abstract: 1,139,216. Respirator for use in Toxic Atmospheres. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 8 July, 1966 [21 July, 1965], No. 31121/65. Heading A5T. A respirator is illustrated with reference to the drawing and comprises a resilient facepiece 1 adapted to form a gas-tight seal with the face of the wearer, a port 16 mounted in sad face-piece, said port having a sealing member 28 movable on to and off a seating to form a non-return valve allowing egress of exhaled air to the surrounding atmosphere, a chamber 18 mounted on the exterior of the respirator, said chamber covering said port and having peripheral outlet ports 33, 34 to the atmosphere facing said sealing member, a dome 19 mounted over said sealing member and having peripheral ports 20 to 27 in said dome, and an inwardly directed annular shielding wall 31 located between said outlet ports and said ports in said dome.
Patent GB-430335-A (GB)
Title: An improved method of preserving unstable organic substances
IPC: C08K5/18
Filed: 1933-11-09
Abstract: N-Butyl-p-aminophenyl-p-cresyl ether is prepared by reacting butylamine and p-chlorphenol in an autoclave to produce N-butyl-p-amino phenol, which is converted into the sodium phenolate and reacted with p-bromtoluene in presence of zinc chloride. N-Isopropyl-o-amino-m-cresyl-p-hydroxy phenyl ether is prepared by reacting o-amino-m-cresol, acetone, and formic acid to produce N-isopropyl-o-amino-m-cresol, which is converted into the sodium phenolate and reacted with p-brom-phenol in presence of active copper.  p-Ethoxyphenylbutylamine is prepared by the action of p-phenetidine on a butyl halide or butanol in presence of a catalyst.ALSO:Age retarders for substances such as rubber, oils, gasoline, &c. comprise substances of the type (A).N.(R).X.(B) where (A) is an acyclic alkyl group, N is nitrogen or NH or N-N=0, (R) is an aryl or aralkyl group, X is oxygen, sulphur, selenium, or tellurium, and (B) is an alkyl, aryl, aralkyl, or heterocyclic group. One or more of the groups (A), (R) and (B) may contain halogen, amino, hydroxy, alkoxy, &c. substituents.  Numerous examples of specific substances are given, of which the following are typical: (1) p-toloxy phenyl isopropyl nitrosamine; (2) naphthoxy benzyl butyl amine; (3) N-butyl phenetidine; (4) p-dimethylamino phenyl naphthyl telluride; (5) 2-chlor 4-ethylamino phenyl ortho tolyl ether.
Patent GB-910130-A (GB)
Title: Diphenylamine purification process
IPC: C07C/
Filed: 1961-08-30
Abstract: Diphenylamine containing basic impurities is purified by treatment with a phosphoric acid, preferably ortho-; the diphenylamine in examples is in the molten state, but its solution in an organic solvent such as benzene may alternatively be used.
Patent GB-533827-A (GB)
Title: Improvements in and relating to corset belts
IPC: A41F11/02
Filed: 1939-12-01
Abstract: 533,827. Corsets &c. SMILEY, M. Dec. 1. 1939, No. 31240. [Class 141] The back and front stocking suspenders 2, 3, of a step-in or closable corset girdle have stitched to them short tapes 8, 9, carrying buttons 6, 7 for supporting elastic stockings. For the same purpose, other buttons 12 attached to short tapes 13 at the lower ends of elastic or other tapes 10 may also be provided.
Patent GB-930253-A (GB)
Title: Improvements in or relating to a holder for cigarettes and the like
IPC: A24F13/06
Filed: 1961-08-30
Abstract: 930,253. Cigarette holders. AQUAFILTER CORPORATION. Aug. 30, 1961 [April 11, 1961], No. 31268/61. Class 130. A plastic cigarette holder 1 contains hygroscopic material 13 held in position in the holder by a metallic sleeve 15 which holds a cigarette. Smoke is drawn through a narrow passage 8 to the mouthpiece section 3. An annular moisture trap 9, which communicates with the passage 8, is formed in the mouthpiece 3.
Patent GB-1180971-A (GB)
Title: Method for Increasing the Resistance to the Fretting Corrosion of the Friction Surfaces of Two Ferrous Metallic Members.
IPC: F16C33/12
Filed: 1967-07-07
Abstract: 1,180,971. Bearings; lubricating. ING. C. OLIVETTI & C. S.p.A. 7 July, 1967 [8 July, 1966], No. 31337/67. Heading F2A. In a method for increasing the resistance to fretting of two relatively movable ferrous members, a first member moves at a higher speed than a second member, is provided with grooves which remove wear-particles from the areas of contact, and is coated with a layer of hard metal; and the second member is provided with a layer of ductile metal. In an embodiment, a shaft 6, Fig. 1, is mounted in a bore 7 of a plate 8 and, prior to being coated with hard metal, is provided with a series of grooves 13, Fig. 2. In modifications rectangular-shaped grooves 14, Fig. 3 (not shown), or herringboneshaped grooves 15, Fig. 4 (not shown), may be provided in the shaft 6. In another embodiment, grooves 16, Fig. 5 (not shown), are provided in the bore 7 of the plate 8. The layers of metal may have anti-corrosion and anti-oxidant properties and pure, neutral petroleum jelly may be used as a lubricant.
Patent GB-286023-A (GB)
Title: An improved supporting bracket for use in combination with motor vehicles and accessories, shop fittings and domestic fittings
IPC: B60J1/04
Filed: 1926-12-10
Abstract: 286,023. Eaves, T. R. Dec. 10, 1926. Look-out reflectors.-A bracket for supporting various articles consists of a member A and a pair of adjustable sliding plates B to grip a support C, the plates being held in the adjusted position by a bolt D passed through one of a series of holes in the member A and slots F in the plates B. The member A is provided with apertured extensions H by which the member may be screwed to a support. A rod R carrying a look-out reflector, shelf &c. is held in a hole M in the member A by a set screw O. In a modification the plates B are dispensed with, the member A being screwed to a support and the bolt D provided with a pair of recessed members P adapted to grip a ball R carried by a mirror &c. R<1>. The members P may be carried by the screw 0, the bolt D being dispensed with.
Patent GB-911971-A (GB)
Title: Improvements in or relating to vehicles
IPC: B60P3/073
Filed: 1957-10-07
Abstract: 911,971. Disc brakes. SMITH, C. A. V. Oct. 7, 1958 [Oct. 7, 1957; Nov. 27, 1957; March 27, 1958], Nos. 31370/57, 37049/57 and 9912/58. Class 103 (1). ). [Also in Groups XXX, XXXI and XXXII] Disc brakes 88 are applied internally to the hubs 87 of the rear wheels of a vehicle by rods 90 passing through worm wheels 85 by which the stub axles carrying the wheels are driven. Each rod 90 is formed with a spiral channel which co-operates with a boss (not shown) so that it is moved axially when a lever 91 is turned by the brake linkage.
Patent GB-951552-A (GB)
Title: A supporting device for use in hanging wallpaper
IPC: B44C7/06
Filed: 1961-08-31
Abstract: 951,552. Paper-hangers' tools. A. E. BEARSBY. Aug. 23, 1962 [Aug. 31, 1961], No. 31431/61. Heading E2B. A paper-hangers aid device comprises an elongated hollow body formed to present a pair of jaws biased together by spring means and are formed with radially disposed lips one of which is greater in length than the other, and means to hold the jaws open against the spring means.
Patent GB-520754-A (GB)
Title: Improvements relating to the spinning of artificial silk
IPC: D01D7/02
Filed: 1938-10-31
Abstract: 520,754. Centrifugal spinning-pots. I. G. FARBENINDUSTRIE AKT.-GES. Oct. 31, 1938, No. 31433. Convention date, Oct. 30, 1937. [Class 120 (ii)] [Also in Group II] A centrifugal spinning-pot for artificial silk has a non- perforated body against which the spinning cake is laid, and is provided with an upper groove 1 to receive the cover. This groove has openings with closely fitted plugs 2 having perforations for the escape of acid. The plugs may be lacquered at the same time as the pot. In the modification shown in Fig. 2, a soft rubber rings fits in the groove 1 and perforated teats 3 on the ring protrude through the openings from the groove.
Patent GB-160004-A (GB)
Title: Improvements relating to handling gear for ships' lifeboats
IPC: B63B23/18
Filed: 1919-12-16
Abstract: 160,004. Harland & Wolff, Ltd., and Stewart, J. D. Dec. 16, 1919. Davits; boat raising and lowering gear. - In combined gear for slueing the davits and raising the boat. a power shaft q is mounted in a frame p and carries a pair of loose worms a, b, either of which may be engaged with the shaft by operating the clutch c disposed thereon. The worm a gears with a worm-wheel o<1> fast on the davit post, and the worm b gears with a worm wheel g loose on the winding-drum shaft k<1> but capable of being locked thereto by means of a clutch f. With the clutch f open, the boat may be lowered under the control of a band brake h<1>, or the falls may be quickly recovered by operating the hand wheel l. A slow hoist by hand is secured by clutching the worm b to the shaft q and engaging the clutch f with the worm-wheel g.
Patent GB-1234698-A (GB)
Title: A communication system for transgerrin data between a computer and a plurality of remote data terminals
IPC: G06F13/00
Filed: 1969-06-24
Abstract: 1,234,698. Digital electric computer. NATIONAL CASH REGISTER CO. 24 June, 1969 [3 July, 1968], No. 31824/69. Heading G4A. The invention relates to a computer serially interrogating a plurality of peripheral units under the control of a counter and using a multiplexer and a plurality of adapter units, one per peripheral unit. A program controlled computer 30 having a memory 31 arranged to store data from and supply data to peripheral units operating in real time sends a three-part instruction word to a multiplexer 21 (illustrated in more detail in Fig. 2, not shown). The first part addresses the multiplexer and causes the next two characters to be accepted. The second part addresses an adapter UN1-UN16 situated between the multiplexer and the peripheral units and causes a decoder in the multiplexer to enable a line feeding the appropriate adapter and the third part, which is transferred to the adapter, places the adapter in an input or output transfer mode. The multiplexer contains a counter normally incremented by a clock to successively examine the adapters. The counter feeds the decoder also fed by the computer. The adapter contains two flip-flops set by the computer to indicate an input or output transfer respectively. In an input mode, transferring data from a peripheral to the computer the data is transferred to an enabled adapter when the peripheral is ready, e.g. when a real time event occurs the data being preceded by a start mark and terminating in a stop mark. The transition from a stop to a start mark is detected in the adapter and causes feed in of serial data and a serial to parallel transfer to occur. When the last digit is read a flip-flop is set and on the next examination of the adapter by the multiplexer the counter is stopped, the count value is transferred to the computer and the data is transferred via the multiplexer to a location in the store determined by the counter value. The multiplexer also adds a parity bit to the transferred data. If the computer requires data to be sent the instruction word sets the adapter to the appropriate mode which is detected on interrogation by the counter. The counter is stopped to identify the adapter and data is sent in parallel, is converted to serial in the adapter, and fed to the appropriate peripheral.
Patent GB-880230-A (GB)
Title: Improvements in or relating to steam generators
Inventor: GRIFFITHS JACK JONES
IPC: F22B1/18
Filed: 1959-09-18
Abstract: 880,230. Heating steam boilers by hot gases. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 11, 1960 [Sept. 18, 1959], No. 31867/59. Class 123(2) A steam generator comprises tube assemblies 5 located in an annular gas passage 4 which is, e.g. for the carbon dioxide coolant of a nuclear reactor and is defined by a cylindrical pressure vessel 2 and a coaxially arranged inner conduit 3 accommodating longitudinal headers 8 which interconnect the tube assemblies 5 and extend through an aperture 6 in the vessel 2 closed by a cover 7 pressure balance across the conduit 3 being obtained by an orifice 9 in the conduit 3. The heating gas enters and leaves the vessel 2 respectively through inlet and outlet ducts 29, 30 pressure relief being obtained by a valve 10 in the cover 7. The groups of tube assemblies, providing economiser, evaporator, superheater, and reheater sections and each comprising a sector-shaped unit of close-packed, interconnected, U-tubes, are enclosed by a light casing 26 having an extension 28 sealing the lower end of the vessel 2. The feed and return tubes of the assemblies 5 penetrate curved plates 13 which form the conduit 3 the upper end of which is extended by a tubular baffle 11 which incorporates an expansion bellows 17 and has a flanged end 16 extended to the walls of the vessel 2. A drain pipe 19 leading from the headers 8 extends through the vessel 2 and through a dome 18 which closes the lower end of the conduit 3 and has a drain pipe 22 projecting through the vessel 2. The cover 7 is penetrated by stub pipes 25 which locate the upper ends of the headers 8.
Patent GB-232653-A (GB)
Title: Improvements in and relating to the production of insoluble metal compounds for use particularly as pigments
IPC: C09C1/00
Filed: 1923-12-19
Abstract: Insoluble metal compounds adapted to be used as pigments are prepared by adding in the solid state a metal salt highly soluble in water to a heated and preferably boiling solution of a salt, the acid radicle of which will form with the base of the first-mentioned salt an insoluble compound.  Thus a readily soluble salt of lead, for instance lead acetate, or zinc such as zinc sulphate, is added in the solid state to a heated or boiling solution of sodium carbonate or of a soluble chromate.  Insoluble salts of copper, cobalt, barium, titanium, and basic salts are similarly prepared.  The lead or zinc salt is added as a solid in small quantities to a 5 per cent boiling sodium carbonate solution until the proportion of the solid salt added is the molecular equivalent of the sodium carbonate.