baber/WOPTO huggingface dataset:
Patent GB-1384528-A (GB)
Title: Scanner units
IPC: H01H67/22
Filed: 1971-06-19
Abstract: 1384528 Electromagnetic relays; selector switches SOLARTRON ELECTRONIC GROUP Ltd 19 June 1972 [19 June 1971 28 Dec 1971] 28891/71 and 60262/71 Heading H1N A scanner unit for selectively connecting analogue signals to a measuring instrument comprises a plurality of reed relays having reed units mounted externally of their energizing coil, the relay coils being connected to the conductors of one printed circuit board and the contact units being connected to the conductors of a second printed circuit board. Each reed relay comprises a coil 10 having plate like polepieces 16 extending perpendicularly to the coil axis and mounted at opposite ends thereof, each polepiece having a first bent over portion 26 extending into the coil 10 and a second bent over portion 28 extending parallel to the coil axis and towards the second bent over portion 28 of the other polepiece, the first bent over portions 26 overlapping within the coil 10 and being a pushfit therein, and a sealed magnetic reed contact unit 30 mounted outside the coil about an axis parallel to and adjacent the line joining bent over portions 28. Each polepiece 16 is H-shaped as shown, although the upper portions 22 of the legs 18 could be omitted. The lower ends 20 of legs 18 are of reduced cross-section for mounting on a printed circuit board 21 to which the coil 10 is electrically connected. A further printed circuit board 38 spaced from the first board 21 by the polepieces 16 carries four contact units 30 of the relay and each unit 30 is electrically connected in series with a respective conductive track of the board 38. The reeds are nickel iron reeds with diffused gold contacts. The junctions between the contact units 30 and conductive tracks on board 38 are shielded from air currents by a polystyrene shield 70 provided with cavities 72 to receive the junctions. A plurality of reed relays are mounted between the printed circuit boards 21, 38 to form a scanner in which a plurality of analogue input signals from remote transducers are sampled at selected time intervals. A manual selector is also provided to energize any relay at any time to sample the analogue signals. The polepieces and core may be replaced by a one piece moulding of plastics loaded with ferromagnetic material.
Patent GB-693015-A (GB)
Title: Improvements relating to burner-heads for the combustion chambers of apparatus for delivering heated air or other fluid
IPC: B64D13/08
Filed: 1950-11-27
Abstract: 693,015. Liquid-fuel burners. DANIEL & CO., Ltd., D. A. Sept. 27, 1951 [Nov. 27, 1950; July 21, 1951], Nos. 28900/50 and 17327/51. Class 75(i) In a burner head for apparatus for delivering heated air or other fluid, liquid fuel is delivered into a stream passing through a conduit or passage projecting into a combustion chamber and returned or directed back into the' burner head, means being provided for igniting the fuel-air mixture, and the conduit or passage having an outlet end for directing the mixture into the burner head to be swirled by deflection by the wall of the latter. The burner head comprises a cylindrical chamber 3, Fig. 4, which is fitted in a tubular combustion chamber having an outer tapered portion 2a, and a pilot jet 17 to which liquid fuel is supplied and ignited by a sparking plug 18 (not shown), air being drawn or forced through a tangential inlet 8 (not shown) into adjacent spiral passages 11, 12, the primary air passing through the passage 12 into a loop-shaped vaporizer duct 13, and the secondary air issuing from the passage 11 directly into the combustion chamber 2. At the same time or after preliminary warming up liquid fuel is injected through a nozzle 19 into the duct 13, the mixture of vaporized fuel and air issuing through an. outlet 16 directed tangertially within the chamber 3. After the apparatus has become warmed up the pilot jet 17 may be turned off. In an alternative construction the tangential air inlet is replaced by an axial inlet through which air passes without swirling directly into the combustion chamber and also directly into the vaporizing conduit which is corrugated at the looped end for avoiding distortion due to thermal expansion. In another embodiment air is supplied through a tangential inlet 37, Fig. 6, to pass successively through longitudinal passages 33, 34, 35 and 36; Fig. 9, formed between the cylindrical walls 25, 27, the air being heated initially by a pilot burner 17. Liquid fuel is injected by a nozzle 42 into the heated air at the outlet from the passage 36. The fuel-air mixture ignites and' passes through an annular chamber 40 and holes 43 in a wall thereof to burn in the central cylindrical chamber 28. Baffles may be provided at the entrance to the passage 33. Specifications 616,006, [Group XIII], and 648,158 are referred to.
Patent GB-193909-A (GB)
Title: Improvements in case-shift mechanism for typewriters
IPC: B41J25/08
Filed: 1921-11-02
Abstract: 193,909. Imray, O. Y, (Noiseless Typewriter Co., Inc.). Nov. 2, 1921. Case-shift mechanism; shift-key actions.-In a double-shift mechanism, the shift-member is connected to a laterally-movable rock-shaft provided with a floating lever operated by the shiftkeys, the initial movement of the floating lever releasing a device for locking the shift-member in the normal position. Preferably, the rockshaft 25 is supported by rocking-arms and is connected to the shift-segment 5 by links 30 having locking-pins 32 normally engaging recesses 38 in locking-levers 33 connected to springs 35. The locking-levers have lugs 36 engaging cams 37 on the rock-shaft. Floating levers 28, secured at the ends of the rock-shaft, are each formed with two arms 28a, 28b provided with rollers 29 engaging shift-key levers 17. 18 pivoted at 41, 42, and adapted to depress and raise the shift-segment respectively. The arms 28a are connected to balancing-springs 43, adapted to be hooked into one of a number of holes 44 to adjust the tension. On depressing the shift-keys, the rockshaft receives an initial rocking movement, and the cams rock the locking-levers and release the pins 32 from the notches. Thereupon, shift movement is imparted to the shift-segment, the movement being limited by the engagement of the pins with lugs 39 or 40 on the locking-levers. The pins are mounted in vertical slots 32<1> in the links 30 and are adjusted by means of pivoted fingers 32<a> having slots 32b engaging the pins.
Patent GB-1120422-A (GB)
Title: Process for producing p-xylylene radicals or polymers thereof
IPC: C07C17/269
Filed: 1965-07-08
Abstract: Poly-(p-xylylenes) are obtained by contacting at 400 DEG  to 800 DEG C. a metal reducing agent with a compound of formula <FORM:1120422/C3/1> where each Y is a halogen or hydrogen atom, X is a halogen atom with a bond strength no greater than that of Y, Z is a hydrogen atom or halogen atom with a bond strength no greater than that of Y and n is 1 or 2, provided that when n is 2 all Ys are the same. Vaporized starting material, which may be mixed with an inert diluent, e.g. steam, nitrogen or argon, may be passed over the metal reducing agent, e.g. copper, zinc, aluminium or tin, in a reaction chamber at reduced pressure.  The resulting vapour may be cooled to condense the metal halide formed and the remaining vapour containing reactive 3,6-substituted 1,4-cyclohexadiene passed into a cooled, inert liquid to condense p-xylylenes which polymerize when heated, or contacted with a cooled surface to condense poly-(p-xylylenes).  In examples, a -hexachloro-p-xylene is reduced with copper to obtain a ,a ,a 1,a 1 - tetrachloro - p - xylylene, which is polymerized by heating, and to obtain poly - (a ,a ,a 1,a 1 - tetrachloro - p - xylylene); poly - (a  - bromo - p - xylylene) is obtained from a ,a 1 - dibromo - p - xylene; poly - (a -chloro - p - xylylene) and poly - (p - xylylene) are obtained from a ,a 1-dichloro-p-xylene; and poly-(p-xylylene) is obtained from a -mono-chloro-p-xylene.ALSO:In examples, 1,4-C6H4(CCl3)2 is reduced with Cu giving vapours which are cooled in toluene to give 1,4-C6H4(CCl2)2(I); similar reaction of 1,4-C6H4(CBrF2)2 gives 1,4-[-CF2C6H4CF2-]2 (cyclic dimer).  I reacts with Br2 to give 1,4-C6H4(CBrCl2)2 and with NO2 to give 1,4-C6H4(CCl2NO2)2. The reactions with Cu are stated to proceed via a quinonoid intermediate 1,4-C6H4(=CX2)2.
Patent GB-891912-A (GB)
Title: Improvements relating to eddy-current brakes
Inventor: GRIFFITHS LEONARD
IPC: H02K49/04
Filed: 1959-08-25
Abstract: 891,912. Eddy current brakes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 25. 1959, No. 29063/59. Class 35. An eddy current brake comprises two pairs of rotor discs 18, 19 and 20, 21 secured to shaft 17, the discs co-operating with two stators. Each stator includes an inner ring 2 with outwardly-pointing polepieces 4 on each side of energizing coil 8, and an outer ring 1 with inwardly-pointing polepieces 3 on each side of coil 8, forming an interdigitated system on each side of the coil. The polepieces on one side of each ring are integral with the ring, those on the other side being detachable, and they are shaped so that radial passages for cooling air are formed between them, e.g. alternate polepieces are tapered, the remainder having parallel sides. The rotor discs 18, 19, 20, 21 are each provided with ribs so that as they rotate they act as fans to draw cooling air through the brake. The ribs 25, 26 on inner discs 19, 20 are interleaved. Air flows through apertures 34 in the housing into the passages between the stator polepieces 3, 4, through apertures 27 in the rotor discs 19, 20 to ribs 25, 26 and then outwardly from the housing. The system can be extended by adding one or more stators, each having an additional pair of rotor discs, or may be reduced to a single stator with two rotor discs. Reference, has been directed by the Comptroller to Specifications 826,048 and 832,940.
Patent GB-721229-A (GB)
Title: Improvements in or relating to cable insulating oils
Inventor: AGIUS PETER JOSEPH VERMONT JAM
IPC: H01B3/22
Filed: 1951-12-12
Abstract: A cable insulating composition comprises a mineral oil of the type used for cable insulating oils and between 5 and 50 per cent. by weight of rosin which has been purified by dissolving it in a hydrocarbon solvent, treating the solution with an absorbent comprising silicious earth such as Fuller's earth, Florida earth, Montmorillonite, silica gel or adsorbent, preferably activated carbon such as activated charcoal and recovering the purified rosin from the solvent.  The rosin may be dissolved in paraffinic or naphthenic hydrocarbons, aromatic solvents or terpenes, and the treatment may be by agitating the liquid with the adsorbent, or by percolating it through the latter.  Desorption of the rosin from the adsorbent may be assisted by washing the adsorbent after treatment with a solvent, which may or may not be the same as that originally used to dissolve the rosin.  In an example, Portuguese rosin (colour K) is dissolved in a petroleum fraction boiling between 60 DEG  C. and 80 DEG  C., and the solution percolated through a column of activated animal charcoal.  After washing the column through with an equal volume of solvent, the rosin is desorbed by elution with pure benzene, which on evaporation gives a pale yellow crystalline product of colour X. Comparative figures for the power factor of this product and of the untreated and conventionally purified rosin when dissolved in a clay-treated bright paraffinic stock are given.
Patent GB-173359-A (GB)
Title: Improvements in carburetters for use more especially in vapourising heavy oils
IPC: F02M25/07
Filed: 1920-10-15
Abstract: 173,359. Wolseley Sheep Shearing Machine Co., Ltd., Walton, J. T., and Hill, W. H. Oct. 15, 1920. Spray carburettors.-The nozzle or nozzles M discharge into a pipe E which may be supplied wholly with exhaust gases, the mixture of fuel and exhaust passing into the air-inlet passage C, which may be provided with a throttle valve e. The exhaust is supplied to the pipe E through pipes g, h, the pipe h being connected to the engine exhaust pipe A. The pipe E increases in cross-sectional area from the closed end to the nozzle M and then continues of uniform size in order to reduce the pressure of the exhaust gases below atmospheric at the nozzle. The air enters the inlet pipe C, which is U-shaped, through an opening adjacent the exhaust pipe A, whereby the air is warmed. A governor-controlled throttle may be placed between the carburettor and the engine. To adapt the carburettor for use with light fuel, a three-way cock may be provided on the branch pipe h, whereby the exhaust gases may be cut off and the pipe h opened to the atmosphere.
Patent GB-842126-A (GB)
Title: Anti-vibration shaft couplings
Inventor: STONE LESLIE HOMER
Filed: 1957-09-17
Abstract: 842,126. Yielding couplings. MORRIS MOTORS Ltd. Sept. 16, 1958 [Sept. 17, 1957], No. 29199/57. Class 80 (2). A shaft coupling for a motor vehicle transmission comprises a rubber block 2 in which are bonded studs 3, 4 which extend oppositely through holes respectively in a socket 1 and a plate 7 for bolting to shaft flanges and have shoulders 6, 9 axially spacing the block from the socket and the plate, which latter are centred by a nylon ring 10 retained by a welded flange 12 and a rubber ring 11.
Patent GB-966750-A (GB)
Title: Improvements in or relating to electro-magnetic clutches
IPC: F16D27/112
Filed: 1960-08-24
Abstract: 966,750. Friction clutches. A. N. CLARK. Sept. 25, 1961 [Aug. 24, 1960], No. 29241/60. Heading F2C. [Also in Division H1] In an electro-magnetic clutch, a coupling ring 3 of magnetic material, slidably keyed by teeth 6a, 6b within a driving or driven non-magnetic member 1, is engaged through a friction ring 7 with a driven or driving magnetic material member 2 by energizing a coil 5 located on a magnetic material spool 4 within the coupling ring 3 and member 2, the friction ring 7 being mounted between opposed stepped facial recesses on the ring 3 and member 2 which together form a narrow annular air gap at 8, restricting and concentrating the flux path (Fig. 2, not shown). The friction ring 7 may be riveted or adhered to either ring 2 or member 3 or may be free, and a rubber ring 15 housed within a groove 16 in the teeth 6a, lightly engages the teeth 6b in the member 1 to prevent rattle.
Patent GB-463389-A (GB)
Title: Improvements in or relating to the manufacture of oxygenated organic compounds
IPC: B65G17/20
Filed: 1936-10-28
Abstract: In the production of oxygen - containing organic compounds by the partial oxidation of hydrocarbons, the hydrocarbon vapour and the oxygen, both at below the reaction temperature, are admixed with a diluent gas or vapour at a temperature and in quantity such that the mixture is at the reaction temperature.  The process may be used for the oxidation of propane, butane, pentane, light petroleum distillates, gas oil, &c. to produce formaldehyde, acetaldehyde, acetone, acetic and other acids, and smaller quantities of methyl, propyl and butyl alcohols.  The diluent, such as steam may be in quantity 30 to 200 times the volume <PICT:0463389/IV/1> of the hydrocarbon.  The reaction temperature may be 550--850 DEG  F., the steam being at 1000 DEG  F.  Preferably, the hydrocarbon and oxygen or air are mixed before being added to the diluent.  The reaction time may be 0,1--3 seconds, and the pressure 25--500 lbs.  The reaction products may be cooled rapidly to below 350 DEG  C. by injecting water or other cooling liquid, and unchanged hydrocarbon may be separated from the exit gases by washing with oil and, after separating from the oil, returned to the process. The quantity of hydrocarbon thus recycled may be 7 times the quantity of fresh hydrocarbon.  In an example, butane preheated to 300 DEG  F. is mixed with 60 volumes of superheated steam and 10 volumes of air, the mixture being at 550 DEG  F. and the reaction time 0,3 second, the temperature being reduced to 300 DEG  F. by quenching.  In the apparatus shown, hydrocarbon is preheated at 5 and led to a compressor 16 which also receives air from a pipe 3. The mixture passes to a mixing chamber 17 to which is fed steam from a super-heater 13.  The mixture flows through a reaction tube 20 in a heating or insulating jacket 19 and thence to a quench chamber 23 which receives water from a main 1.  The reaction gases pass through a cooler 25 to an absorber 28 fed with water, the condensate passing to a still 35 having a dephlegmator 38 and condenser 40.  The gas escaping from the absorber passes by a pipe 29 to an oil washer 50, the oil from which is led through a heater 52, the hydrocarbon vapour from which is led to a holder 67 and thence to the mixer 16.
Patent GB-990350-A (GB)
Title: Printing plate with transfer layer
IPC: B41C1/10
Filed: 1963-07-24
Abstract: 990,350. Printing surfaces. COLUMBIA RIBBON & CARBON MANUFACTURING CO. Inc. July 24, 1963 [July 25, 1962], No. 29288/63. Heading B6C. A planographic printing plate blank has on the reverse side to the one carrying the hydrophilic planographic printing coating a pressure-trans. ferable eleophilic layer said layer having a dry clear rub-resistant surface comprising pressuretransferable oleophilic imaging material for transference of ink receptive images to the hydrophilic printing surface of a planographic printing plate blank. By superimposing a plurality of such blanks, imaging of all those below the top one is effected simultaneously in a single operation by applying desired pressures, such as from a typewriter, to the upper coated surface of the top blank. In the embodiment shown in Fig. 2 a flexible foundation 10 has a hydrophilic printing coating 11 based upon carboxymethyl cellulose and an oleophilic transfer layer 12 applied in the form of an aqueous emulsion. Such a layer may comprise a mixture of ethyl cellulose, mineral oil, Milori blue, methyl alcohol and water. As an alternative the mixture in water may comprise polystyrene emulsion, beeswax, montan wax, oleic acid, triethanolamine, Milori blue and Be Square Wax. A further example employs montan wax, oleic acid, morpholine, carbon black, a surface-active agent (polyoxyalkylene ester) and water. Other surface-active agents which may be used are polypropylene glycol ether and naphthalene sulphonate. In a further embodiment a release coating 13, Fig. 3, may be applied between the foundation 10 and the layer 12. Such coating is preferably based upon a vinyl, vinylidene, acrylic or methacrylic resin and is applied by means of a volatile solvent or dispersing medium, and when set is not soluble in the solvent or dispersing liquid used to apply the layer 12. When working with water-applied transfer layers it is preferable to apply the release layer as an aqueous dispersion or emulsion. According to yet another embodiment the layer 12 may be applied in such a manner as to provide a clear uncoated margin of the foundation 10 around the same. The provision of such a margin prevents the spreading of the layer material 12 across the cut edges of the blanks when the blanks are coated in the form of a wide web and thereafter cut into the desired sizes. Specification 769,520 is referred to.
Patent GB-1104049-A (GB)
Title: Improvements in or relating to the detection of structural defects
IPC: C08J9/30
Filed: 1965-07-09
Abstract: A method of inspecting a structure for the presence of defects producing leakage comprises forming on the area of the structure to be tested a coating of a composition containing from 2 to 10% by weight of an adhesive agent, and from 0.2 to 2% by weight of a foaming agent, the balance comprising a solvent or dispersant for the adhesive agent, and applying gas pressure to said structure, whereby leakage of gas through a defect in the structure can produce a durable mass of foam at the location of the defect.  The composition may also include an anti-rust agent, a hardening promoter, an antiseptic, a plasticizer, or a pigment filler.  The composition may be brushed, sprayed, or rolled on to the structure.  In one example, the composition comprises an adhesive agent of urea-formaldehyde resin solution and gelatine, the foaming agent is sodium dicotyl sulphosuccinate and water the solvent.  In a second example, the adhesive agent consists of an emulsion of polyacrylic ester resin and glycerine, and the foaming agent is sodium dodecylbenzenesulphonate, water being the solvent.  In a third example-the adhesive agent is a mixture of phenolic resin and gelatine, a hardener of phosphoric acid solution and an antiseptic of dodecylhydroxy-imidazoline are used. Alternatively, in the above examples, the adhesive agent may comprise synthetic resins, synthetic rubbers, proteins or bitumens; the foaming agent may consist of dodecylbenzenesulphonic acid, oleyldiethylethylenediane or polyoxyethylenesorbitan mondaurate; the rust inhibitors may comprise chromic acid, dichromic acid, benzoic acid, glycerol mono-oleate, sorbitan mono-oleate, N - dodecyl ammonium stearate, dicyclohexyl-ammoniumxylyl stearate or cetyldiethylammonium phenyl stearate; the hardeners may comprise chromic acid, dichromic acid or benzoic acid; and the antiseptics may comprise formalin, thymol, pentachloro phenol, phenol, dodecylhydroxy imidazoline or borax.  In a fourth example, the adhesive agent is polyvinyl-acetate resin, the plasticizer is dibutyl phthalate and the foaming agent is sodium dioctylsulphosuccinate. In a fifth example, the adhesive agent is a copolymer of vinylchloride and vinylacetate, the plasticizer is tricresylphosphate and the foaming agent is polyoxyethylene-dodecylphenolether.
Patent GB-1044879-A (GB)
Title: Transducer mounting
Inventor: GOODMAN JOHN EDWARD
IPC: B08B3/12
Filed: 1964-07-18
Abstract: Apparatus for cleaning metals, such as strip, wire or components, by sonic or ultra sonic energy comprises a vessel containing a liquid cleaning medium and a transducer probe 1 which is mounted on the vessel by means comprising a probe flange 4 containing an annular Vee groove 5 housing a resilient sealing ring 8 and locating against the inner face 7 of the vessel, a bearing collar 9 surrounding the probe on the outer face of the vessel and a thrust ring 10 surrounding the probe adjacent the collar anchored longitudinally on the probe by a circlip or split spring ring 11 which is sprung into an annular groove 12 in the probe.  Through the thrust ring are screwed a number of clamping studs 13 with locknuts 14 which clamp the flange and collar against opposite faces of the vessel with the sealing ring compressed.  The probe 1 which has two transducers 2 secured thereto to screw threaded plugs 3 is thus mounted in the vessel in a liquid tight manner with a degree of flexibility which reduces the damping effect on the vibrations of the probe. <PICT:1044879/C6-C7/1>