baber/WOPTO huggingface dataset:
Patent GB-712497-A (GB)
Title: Improvements in or relating to intercommunication telephone systems
IPC: H04M1/65
Filed: 1951-10-09
Abstract: 712,497. Intercommunication systems. ADLER, A. E. Jan. 9, 1953 [Oct. 9, 1951; Oct. 9, 1951; Dec. 14, 1951], Nos. 23526/51, 23527/51 and 29374/51. Class 40 (4) Stations in an intercom munication system may be individually connected to a disc or.tape recording unit and may also bring a reproducing unit into use whereby the last portion of the recorded matter may be heard, the drive to the re cording unit being effective only when speech currents are trans mitted or when reproduction i: required. The system may comprise a number of stations two of which are shown, and calling is initiated by operatior of switch-hook contacts SH when a handset is lifted. An appropriate, push button 28 is then depressed to an overthrow position in which speech and ringing bars 35, 36 complete a circuit for a buzzer 32 over the home line 31 of the station required. When the handset at the called station is lifted in reply, the buzzer is disconnected and a conversation path established between the transmitters 18 and receivers 17 over resistor bridges 21 which are connected as described in Specification 650,070. The operated push button moves to an intermediate position when released so that the speech bar remains in contact with the home line, the' button being mechanically restored to normal only when the handset is replaced. When a connection to a recording unit is required, a switch K is operated, causing relay R to pull up and close a circuit from battery 14 to the busy indicator lamps 16 at the other stations. The operating coil 41 of the relay is inductively coupled with windings 44, 47, winding 44 providing a speech circuit to the recording unit 10 while winding 47 is connected to a voiceoperated relay unit 46 which establishes a drive to the recording unit only when speech currents are detected. If the connected station wishes to hear the last portion of the recorded speech, a relay 51 is operated by depressing a specially allotted push button 28. A reproducing unit 11 is then brought into use and the recording drive connected. The reproducing unit comprises a pick-up arm or a tape reproducing head which is spaced rearwardly from the recording apparatus in the direction of recording so that the last portion of the recorded matter is reproduced at the station receiver 17. When the push button is released relay 51 falls back and the recorder drive is again disengaged. If necessary, amplifiers may be included in the recording and reproducing circuits or a single amplifier may be used which is switched from one circuit to the other by operation of relay 51. Several reproducing units may be in common use, in which case a selection switch and an appropriate number of busy indicator lamps must be provided at each station.
Patent GB-1237581-A (GB)
Title: Coordinated complexes of nitrogenous compounds
Inventor: OTTO FERDINAND PHILIP
IPC: C10L1/30
Filed: 1968-05-17
Abstract: 1,237,581. Lubricants; fuels. MOBIL OIL CORP. 17 May, 1968, No. 23570/68. Headings C5F and C5G. [Also in Division C3] Metal complexes are formed between (a) an organic nitrogen compound having at least one basic nitrogen atom and (b) a salt of a metal of Group I B , II B , IV A , VI B  or VIII of the Periodic Table (Lange's Handbook of Chemistry) with RSO 3 H, HR 2 PO 4 , H 2 RPO 4 , RPO(X)OH or HOSO 2 NH 2  where R is C 1-50  alkyl, aryl, aralkyl or alkaryl or an oxygen or sulphur derivative thereof and X is R, H or OH; a phosphosulphurized polyolefin; or the reaction product of an alkenyl succinic acid or anhydride containing 8-300 carbons and a polyamine. The products are added to gasoline, distillate fuel oils or lubricants which may be mineral or synthetic, e.g. esters, polyolefins, polyalkylene oxides, silicones, polyacetals or hydrocarbons. In examples products are added to mineral lubricating oil with zinc dihexylphosphorodithioate, overbased calcium sulphonate and barium salt of phosphosulphurized polypropylene. The preferred nitrogen compounds are alkylene polyamines and their reaction products, containing at least one basic nitrogen, with a carboxylic acid anhydride an aldehyde or an alkenyl (particularly polybutenyl) succinic acid or anhydride with or without an acid or aldehyde. In examples are reacted (a) polybutenyl succinic anhydride, tetraethylene pentamine and acetic anhydride with (b) zinc C 38-48  organic phosphate, zinc diamylphenyl phosphate or a zinc salt formed from the succinimide of (a); (a) polybutenyl succinic anhydride, tetraethylene pentamine and butyraldehyde with (b) zinc diphenyl phosphinate, zinc p-toluene sulphonate, zinc sulphamate, zinc methane sulphonate, zinc methylphenyl phosphate or zinc wax benzene sulphonate; (a) tetraethylene pentamine, formic acid and maleic anhydride with (b) zincphosphosulphurized polypropylene; (a) tetraethylene pentamine and butyraldehyde with (b) zinc-phosphosulphurized polypropylene; (a) polyethyleneimine (M.W. 50,000-100,000) and (b) zinc-hydrolysed phosphosulphurized polypropylene and (a) tetraethylene pentamine with (b) zinc alkylbenzene sulphonate then reacted with polybutenyl succinic anhydride.
Patent GB-1128098-A (GB)
Title: Plastic plate or film
IPC: E04C3/09
Filed: 1966-05-26
Abstract: 1,128,098. Laminates. L. M. H. SCHIMMELPENNINCK. 26 May, 1966 [4 June, 1965], No. 23639/66. Heading B5N. A laminate comprises at least two plastics layers separated from one another by an interspace, within which are located a plurality of reinforcing elements spaced from one other, substantially parallel, and bonded to at least one of the layers, and having a textile strength greater than that of either layer. The reinforcing elements are suitably made of glass fibres reinforced with resin, and the laminate is preferably transparent.
Patent GB-191115-A (GB)
Title: Improvements in valve mechanism of internal combustion engines
IPC: F01L1/14
Filed: 1921-09-06
Abstract: 191,115. Akehurst, E. Sept. 6, 1921. Valve-gear; regulating.-A valve tappet 3 is made hollow at 2 to receive the end of the valve stem 1. Adjustment is made bv a nut 15 screwed on to the upper end of the tappet, through which the stem passes, and by a nut 17 on the valve stem.
Patent GB-224049-A (GB)
Title: Improvements relating to mechanical stokers
IPC: F23H11/04
Filed: 1923-09-21
Abstract: 224,049. Underfeed Stoker Co., Ltd., and Brown, P. W. Sept. 21, 1923. Grates. - The bars e of a travelling grate are mounted loosely within a retaining frame a, b, and are provided with conical perforations f by meams of which they are threaded on rods d. The bars rest against one another and may turn laterally about their points of support k on the rods d during expansion without the spaces formed by the bosses g and ribs i being decreased in size. On the return run of the grate the bars occupy the position shown in Fig. 4, the spaces between the bars being increased in size thus facilitating the passage of the ashes &c.
Patent GB-315600-A (GB)
Title: Improvements in or relating to the hanging or mounting of doors, windows and the like
IPC: E05D3/04
Filed: 1928-08-17
Abstract: 315,600. Eastwood, G. W. Aug. 17, 1928. Bodies. - To secure a door-hinge to the stanchion of a vehicle a hinge pin a is mounted in a flanged socket piece d which is rigidly secured by a bolt, stud or screw e passing through the stanchion c. Rotation of the socket piece is prevented by screws d<2> passing through the flange into the stanchion. The hinge flaps of double doors may be mounted either on the same or on separate hinge pins, the separate hinge pins being mounted in one socket piece. The hinge flaps are bent to accommodate different widths of door pillar. With single doors the flap may have a pair of knuckles spaced apart to fit the socket piece d or a flap similar to one of those used for double doors may be used with suitable collars.
Patent GB-196858-A (GB)
Title: Improvements in or relating to vices
IPC: B25B1/10
Filed: 1922-09-01
Abstract: 196,858. Hampton, C. W., and Hampton, Ltd., C. & J. Sept. 1, 1922. Vices.-In vices of the kind in which the operating screw 3 engages a detachable nut 4 carried on a slide 5 mounted in guides 7 in the fixed jaw 1, the fixed jaw is provided with an abutment 8 adapted to engage the nut adjacent to its tapped portion and between that portion and the slide. The latter is provided with bevelled edges, the guides 7 being correspondingly undercut. The tapped portion extends in front of the slide 5 and is carried by a central web 6, a part 10 of which engages the abutment 8, a pin 12 serving to retain the nut in position. The rear end 2 of the sliding jaw may be closed in at 11 to protect the screw from filings.
Patent GB-873932-A (GB)
Title: Improvements in or relating to electrically heated ovens and furnaces
Inventor: MITCHELL CLIVE CHARLES
IPC: H05B3/62
Filed: 1958-07-23
Abstract: 873,932. Electric furnaces and ovens. GENERAL ELECTRIC CO. Ltd. July 6, 1959 [July 23, 1958], No. 23742/58. Class 39(3). An electric heater for an electric oven or furnace, particularly a vacuum furnace for outgassing materials, comprises a metallic member to which is attached or in which is embodied an electric heating element, and to which is attached or in which is embodied a tube or duct for the flow of cooling fluid so that after the heating operation the charge can be rapidly cooled down. A spiral sheathed wire heating element 2, Fig. 2, having a sheath of nickel, iron, or chromium alloy, is cast in a copper plate 1 and a copper cooling spiral is attached to the underside of the plate by means of a copper silver brazing material. The cooling tube may be coiled around the periphery of the plate. In a furnace, Fig. 3, the plate 1 with cooling coil 3 is mounted on a seat 6 which can be adjusted in height by means of the screws 20. A removable cover 18 collects evaporated material. A baffle 16 carrying on its underside a cooling spiral 17 prevents oil vapour from entering the furnace from the pump.
Patent GB-206290-A (GB)
Title: Improvements in or relating to brake lever arrangements for railway and other vehicles
IPC: B61H15/00
Filed: 1922-09-02
Abstract: 206,290. Crocker, F. Sept. 2, 1022. Force-transmitting mechanism.-In a brake lever system such as described in Specification 25112/10 in which the fulcrum disposition is changed to increase the leverage when upon an application of the brakes a certain pressure obtains in the system, the change of leverage is effected by the engagement of a pawl piloted on the one lever with a toothed quadrant carried by the associated lever, this quadrant being provided with a toothed segment in gear with a fixed toothed segment or abutment. A rook shaft d has fixed thereto an arm e connected to the brakes and a double arm B between the members of which is pivoted at b the lever A. A spring m presses against a cross piece b<1> fixed to the arm B and the head of a. bolt r the other end r<2> of which presses upon a pawl f pivoted at c to the lever A. The pawl rests upon the cross-piece b<1> and is thus normally held out of engagement with a toothed quadrant g pivoted at b and having a toothed segment, h engaging a stationary segment i fixed to the vehicle at k. When force is applied to the outer end of the lever A to apply the brakes the spring m at first prevents relative movement of the levers A, B which turn together about the axis of the shaft d. The toothed segment g during this part of the movement moves relatively to the pawl f so as to bring the teeth opposite the pawl. When the blocks contact with the wheels the spring m yields and the lever A turns about the pivot b thus engaging the pawl f with the segment g and further movement of the lever A is transmitted to the lever B through the segment which is caused to roll on the stationary segment i. The segment g may be made hook shaped with internal teeth and the pawl f be disposed within it. Fig. 4 shows alter-. native means of connection between the lever B and the brakes. The arms of the lever Bare extended at e beyond the Divot of the lever and are connected to an equalizing link w connected to levers 3 and pull rods 4 extending to the brakes at opposite ends of a vehicle.
Patent GB-785627-A (GB)
Title: An assembly of parts for forming a member of a heat exchanger
IPC: F28F3/02
Filed: 1955-08-19
Abstract: 785,627. Making heat exchangers; brazing. AIR PREHEATER CORPORATION. Aug. 19, 1955 [Sept. 20, 1954], No. 23933/55. Classes 83 (2) and 83 (4). In an assembly of parts for forming a member of a heat exchanger including a metal plate having a plurality of spaced parallel elongated members mounted longitudinally on the plate, a positioning element for the elongated members lying normal to the elongated members and interconnected therewith comprises a preformed piece of brazing material. In one embodiment an assembly comprises a pair of plates 11, 12, Fig. 1, separated by upright sinuously bent wires 14 fitted in chambers 16 with brazing metal sheets 19 between the plates and the channels and brazing metal liners in the channels, the channels and wires being positioned by copper &c. strips 17 having flanges 18 and openings 20 for the wires and channels punched &c. to provide tabs 22. In furnace brazing the strips 17 fuse and provide additional brazing metal. In a modification the positioning device comprises a strip somewhat S-shaped in section with notches at its top and bottom edges engaging the wires. In a further modification a thin-walled tube 38, Fig. 3, of round or oval section is expanded between the loops of the wires to deform about the wires at 39. In a further embodiment parallel rows of channels are positioned by strips 40, Fig. 7, which form clips to fit within the channels.
Patent GB-1029392-A (GB)
Title: Laminated structures and method of fabrication
Inventor: RYAN JOSEPH DENNIS
IPC: B32B15/08
Filed: 1963-06-17
Abstract: 1,029,392. Heated windscreens. LIBBEYOWENS-FORD GLASS CO. June 17, 1963, No. 23959/63. Heading B7J. [Also in Division B5] An electrically conductive structure, e.g. a windscreen, produced by applying a transparent conductive film to the inner surface of one of a pair of plastics sheets, arranging the sheets in spaced relation and casting a curable plastics material into the space between said sheets and allowing it to set to form a flexible plastics interlayer is characterized in that before said casting, a transparent protective coating is applied over said film. The conductive layer may comprise gold, nickel, iron, silver or copper, and may be thermally deposited directly on to the sheet. Alternatively the surface of the sheet may be sealed by thermally evaporating thereon a sealing layer a (Fig. 3, not shown) such as quartz, titanium dioxide, aluminium oxide or chromium oxide. To this sealing layer is applied a metallic oxide adhesive layer b, e.g. lead, silver, aluminium, magnesium, nickel, zinc or thorium oxide, on which is deposited the conductive layer c. Optionally, a further adhesive layer d may be applied to layer c, and to this is applied a protective layer e, e.g. quartz. The protective layer 17 is now applied by spraying, and may comprise polyvinyl alcohol to which methacrylato-chromicchloride has been added, or carboxy methyl cellulose, or hydroxy ethyl cellulose or any film forming water-soluble polymer to which urea-formaldehyde may be added. The flexible plastics material 13 may be a copolymer of styrene with an unsaturated polyester or a copolymer of 25% methyl methacrylate with the reaction product of maleic anhydride with a mixture of hexamethylene and propylene glycols and may be cast by placing the sheets 11, 12 in the frame 20 (Fig. 5, not shown) separated by strips 21 of the same material as the casting material 13, and introducing the liquid plastics material into the space between the sheets and heat-curing. The outer plastics sheets may be diethylene glycol, bis-allyl  carbonate, acrylic resins or a cast mixture of styrene and an unsaturated polyester. Electrodes (not shown) may be incorporated with the conductive film to serve as connectors to an external power supply.
Patent GB-1112443-A (GB)
Title: Method and apparatus for metering liquid coating compositions on travelling webs
Inventor: VERKINDEREN PAUL AUGUST
IPC: G03C1/79
Filed: 1965-06-04
Abstract: Apparatus for metering and smoothing a liquid composition applied to a web comprises means for conveying a web through coating and metering stations, a backing support member extending up to a certain position along the web path, a doctor blade mounted in a holder and flexed against the web where supported by the backing member, a free margin of the blade extending beyond this point in the direction of web travel, and means for adjusting the course of the web to lie in parallel juxtaposed relationship with the free margin of the blade. The doctor blade is preferably of spring leaf steel clamped between two pressure members.  The blade holder is capable of movement laterally towards and away from the backing member and also of movement along an arc of a circle to vary the angular disposition of the blade.  The backing member is preferably a rotatable roller.  The means for adjusting the web path preferably comprises a displaceable and freely rotatable roller over which the web passes.  The doctor blade is shown when employed with several different types of roller coating apparatus, the level of coating liquid in the trough being maintained constant and means also being provided for heating the liquid.  The coating liquid may also be applied by electrostatic coating techniques.  The coated web may be stretched, buffed or calendered.  The apparatus is particularly useful in smoothing liquid coatings applied to web materials for use in photographic processes.
Patent GB-1253335-A (GB)
Title: Improvements relating to a viewport
IPC: B63C11/44
Filed: 1970-05-19
Abstract: 1,253,335. Lights for submersible decompression chambers. OCEAN SYSTEMS Inc. 19 May, 1970 [20 May, 1969], No. 24045/70. Headings B7S and B7U. A light for a submersible compression chamber comprises a pair of window elements 2A, 2B having inner chamfered surfaces seating on "O" rings 7 in a "V" section ring 6 against which they are clamped by outer rings 1 and screws 9. When the chamber is submerged the pressure on the outer surfaces of the elements 2A, 2B increases the seal with ring 6, but when the chamber returns to atmospheric conditions the "O" rings 3, 7 permit the elements to move and exhaust freely any helium which may have accumulated between them during submersion. The elements are of transparent plastics material, e.g. acrylic resin or polycarbonate resin.
Patent GB-752983-A (GB)
Title: Firedamp-proof electric time fuse
IPC: F42B3/16
Filed: 1954-08-18
Abstract: 752,983. Blasting fuzes. DYNAMITAKT.-GES. VORM, A. NOBEL & CO. Aug. 18, 1954 [Aug. 27, 1953], No. 24101/54. Class 9(1) An igniter for an electric time fuze comprises a chamber containing a delay composition communicating with a second chamber containing . an initiating charge, the connecting passage between the chambers being con- .tinued into the initiating charge and filled with the delay composition. In Fig. 1 a tube 1 is divided into two chambers 2, 3 communicating through a restricted bore 4, the wall of the bore 4 being shaped to project into the initiating charge chamber 3. In an alternative construction, two separate chambers are provided, the delay,chamber having a tapered end wall axially bored to receive part of the delay composition. The tapered wall is pressed into the initiating composition. A groove may be formed in the wall of the delay chamber, into which groove the detonator casing receiving the igniter may be crimped or pressed.
Patent GB-277382-A (GB)
IPC: C01B17/52
Filed: 1927-09-13
Abstract: 277,382. Zelewski, R. von. Sept. 13, 1926, [Convention date]. Sulphur dioxide; sulphuric acid.-In producing gases containing sulphur dioxide, for use in the manufacture of sulphuric acid, by roasting sulphide. ores, sulphur-containing materials &c. in Dwight-Lloyd or similar apparatus in which the materials are evenly passed in a thin layer through a heating zone, air under pressure is forced through the material from above. The resultant gases enter the Glover tower without cooling.
Patent GB-1487107-A (GB)
Title: Azeotropic composition
IPC: C23G5/028
Filed: 1975-06-04
Abstract: 1487107 Solvent composition ALLIED CHEMICAL CORP 4 June 1975 [19 June 1974] 24136/75 Heading C5D A composition of substantially constant boiling temperature consists of trichlorofluoromethane in an amount over 98% by weight and ethanol or isopropanol or a mixture thereof in an amount less than 2% by weight and such that the boiling temperature of the composition varies by less than 5 C. at 760 mm. pressure over its entire boiling range. The composition may be one which contains 98À9% by weight of trichlorofluoromethane and 1À1% by weight of ethanol, boiling at 23À5 C., or 99À5% by weight of trichlorofluoromethane and 0À5% by weight of isopropanol and boiling at 24À8 C. or 98À6% by weight of trichlorofluoromethane, 0À7% by weight of ethanol and 0À7% by weight of isopropanol and boiling at 24À5 C. The compositions may be used to clean or dry a substrate, e.g. by removing resin fluxes from electrical apparatus, and may be used in metal machinery as a lubricant when a cleaning action is also required.
Patent GB-230385-A (GB)
Title: Tilting mechanism for motor trucks
IPC: B60P1/28
Filed: 1924-10-11
Abstract: 230,385. Overaasen, H. J. Oct. 11, 1924. Tipping-carts.-In a motor truck having a tipping-body, the body is locked in its normal position by one or more springs 2 secured to the uprights of the vehicle and adapted to engage one or more detents 3 on the undercarriage. The springs are released at will bv means of a rotatable transverse shaft or spindle 4 provided with cams 6 to bear on the springs.
Patent GB-245826-A (GB)
Title: Improvements in or relating to a device for supporting intermeshing gear wheels, anda method of manufacturing the same
IPC: F16G11/12
Filed: 1924-10-13
Abstract: 245,826. Purden, W. Oct. 13, 1924. Windows; machine details.-In casting a housing about intermeshing bevel, skew, or other gears, for instance in the manufacture of a tensioning devices for tennis nets, Fig. 6, or of a fanlight opener, the gears are embedded in a core with their shanks projecting. The core is made from sand or the like in a halved box B, which supports the gears 1, 2 by engaging their shanks 4, 5, a spindle 3 serving as an additional support for the gear 1 and to form a hole, through the housing, for the screw spindle 18. The core with embedded gears and spindle 3 is placed in a sand mould having the desired form and stands upright on the shank 5. The shanks 4, 5 and the projecting end of the spindle 3 are preferably coated with shellac.
Patent GB-785388-A (GB)
Title: Improvements in or relating to pigment compositions
IPC: C09B67/08
Filed: 1955-08-22
Abstract: Pigment particles are uniformly coated with from 1/2 to 4 per cent by weight of a water-insoluble, oil-soluble diacid salt of an N-aliphatic alkylene diamine of the general formula R-NH-(CH2)xNH2, the acid having the general formula R1COOH or R1-NH-A-COOH, R and R1 being aliphatic radicals, or a mixture of aliphatic radicals, having from 12 to 22 carbon atoms, x being an integer from 2 to 10, preferably 3, and A being a divalent aliphatic hydrocarbon radical of 2 or 3 carbon atoms.  R may be a mixture of radicals derived from tallow, soya-bean oil or coconut oil.  The acid may be, for example, oleic or N-coco-aminobutyric acid.  The coating may be formed by adding separately to an aqueous pigment dispersion stoichemetric quantities of a water-soluble salt, e.g. the acetate or hydrochloride of the diamine and of an alkali metal salt of the acid and separating the coated pigment particles from the aqueous phase.  As pigments iron blue, chrome yellow, chrome orange, chrome green, zinc chromate, red lead, azo type toners, aluminium hydrate, lakes, carbon black, iron oxide, zinc oxide, titanium-containing pigments, zinc-sulphide-containing pigments, white lead and extenders are mentioned.