baber/WOPTO huggingface dataset:
Patent GB-581441-A (GB)
Title: Improvements in or relating to multiple discharge pumps
IPC: F04C15/06
Filed: 1943-12-24
Abstract: 581,441. Rotary pumps. PESCO PRODUCTS CO. Dec. 24, 1943, No. 21643. Convention date; Dec. 12, 1942. [Class 110 (ii)] A pump of the outwardly-sliding vane type has an inlet 24 for liquid, a main outlet 68 and a second, smaller, outlet 28 through which liquid is delivered past a non-return valve 70 to the cooling jacket of a driving motor. An adjustable pressure-relief valve 38 is fitted, and opens when a shut-off valve is closed, but the cooling circuit continues to function. The port 28 is positioned on the upper side of the pump to reduce the risk of foreign matter being carried to the pipe 30.
Patent GB-909712-A (GB)
Title: Biscuit packages and method of and apparatus for producing them
Inventor: GRINER ARTHUR JOHN
IPC: B65B23/10
Filed: 1960-06-21
Abstract: 909,712. Endless conveyers. NATIONAL BISCUIT CO. June 21, 1960, No. 21698/60. Class 78 (1). [Also in Group XVII] Articles 54 arranged in groups in a continuous -tube of wrapping material 62 (see Group XVII) are positioned by sponge rubber blocks 70 on opposed conveyer chains 69, some blocks 72 being of greater height so as to press the tube between the groups of articles. Prior to grouping, four lanes of articles are formed into a single lane for each of a number of wrapping mechanisms. The lanes are forwarded by an " uplift conveyer. Fig. 8b (details not shown) comprising belts operating at different speeds for each lane and means for raising and separating 10-ft. lengths of articles so that the lengths may be intercalated by converging belts 40.
Patent GB-745461-A (GB)
Title: Improvements in or relating to process for the manufacture of magnesium chloride
IPC: C01F5/30
Filed: 1953-08-06
Abstract: Magnesium chloride is manufactured by calcining dolomite, dolomitic limestone or magnesite until at least the MgCO3 content thereof has been converted to MgO, preparing an aqueous slurry of the resulting calcine with a calcium-sulphate-containing material (gypsum, anhydrite or by-product calcium sulphate) and an alkali metal (specifically sodium or potassium) chloride in substantially the molar proportions MgO:MCl:CaSo4=1:2:1 (where M is an alkali metal), carbonating the slurry with a carbon dioxide-containing gas at between 5 DEG C. and the boiling-point e.g., 5-30 DEG C. completing the reaction by heating at between 40 DEG C. and the boiling point, filtering off the calcium carbonate, crystallizing and separating the alkali metal sulphate from the mother liquor and recovering magnesium chloride from the mother liquor.  In an alternative method, the magnesia is slurried with water, carbonated at between 5 DEG C. and the boiling point until all of the magnesia has been converted to magnesium carbonate, MgCO3.3H2O, or bicarbonate and then adding the other reactants in the above-stated proportions, before heating at between 40 DEG C. and the boiling point and subsequently treating as before.  Small amounts of alkali metal sulphate remaining in a concentrated magnesium chloride mother liquor may be removed by adding a quantity of calcium chloride stoichiometrically equivalent to the alkali metal sulphate and separating the so-formed precipitate of calcium sulphate and alkali metal chloride.  To produce magnesia from a magnesium chloride solution, milk of dolomitic lime may be added so as to provide 1 mole of Ca(OH)2 for each mole of MgCl2 in the solution, and the insoluble Mg(OH)2 derived partly from the magnesium chloride and partly from the dolmitic milk of lime filtered off. In calcining the dolomite or &c., it may be half-burned (e.g. at 750-1000 DEG C.) and thus contain mainly magnesium oxide and calcium carbonate or dead-burned (e.g., at 1400-1600 DEG C.).  For the carbonation, gases containing 2-100 per cent CO2 may be used, e.g., 8-12 per cent or 30-40 per cent, according to available sources.  If the reaction is performed in a vessel with a conical bottom, calcium silicate and iron oxide from the calcine will settle and may then be discharged.  After the removal of the finely divided calcium carbonate, the filtrate may be evaporated, preferably under reduced pressure and/or refrigerated to crystallize the solium sulphate, anhydrous crystals being formed above 35 DEG C and the decahydrate below 32 DEG C.  The mother liquor is then concentrated to contain about 25 per cent magnesium chloride and the hexahydrate crystallized therefrom.  This may be dehydrated stepwise in a hot-air oven or muffle furnace to MgCl2.2H2O, and finally to anhydrous MgCl2 in, e.g., a rotary kiln.  Detailed examples are given.
Patent GB-1340014-A (GB)
Title: Containers
IPC: B65D83/00
Filed: 1971-04-19
Abstract: 1340014 Boxes H IPPEN [trading as ARLAC-WERK HEIKO IPPEN KG] 19 April 1971 [26 Aug 1970] 21787/71 Heading B8P A container for nails, screws, paper clips, or hair pins comprises at least one chamber 30, an opening 17 extending over the whole width of the chamber and having an upper edge 18 formed by the top 16 of the container and a lower edge 19 formed by the adjacent side wall 15, a guide surface 20 extending from the edge 19 to the bottom wall, and a bar magnet 23 beneath the guide surface adjacent the opening to hold a nail, &c. for manual removal. There may be two chambers side-by-side with the openings arranged in the opposite end walls, and the top being formed by a removable lid having quadrant cut-outs adjacent the openings. The magnets may be mounted on bars fixed to a detachable bottom wall.
Patent GB-1327475-A (GB)
Title: Adsorption
IPC: B01D53/02
Filed: 1970-05-06
Abstract: 1327475 Separating gases L'AIR LIQUIDE SOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES, GEORGE CLAUDE 6 May 1970 [7 May 1969] 21921/70 Heading B1L A cyclic process for the separation of gaseous mixtures comprises a first stage of absorption of at least one component by a solid mass while under a first pressure, a second stage when the feed and product are. interrupted, a third stage a desbrption at subatmospheric pressure below the first pressure; a fourth stage of raising the front with an eluant to a third intermediate pressure and finally withdrawing absorbed gas under vacuum.
Patent GB-1448560-A (GB)
Title: Vehicle rear-view mirror assemblies
IPC: B60R1/064
Filed: 1973-05-08
Abstract: 1448560 Rear-view mirrors MAGNATEX Ltd 5 Dec 1973 [6 Dec 1972 8 May 1973] 56349/72 and 21955/73 Heading B7J A vehicle rear-view mirror assembly, adapted to be mounted on window framing of a vehicle door having outer and inner skins 1 and 2, comprises a mirror head 3, 4 carried on an arm 5 which extends through an aperture 13 in a mounting plate 11 adapted to be secured to the framing, the arm 5 having a ball 6 adjustably clamped between socket portions 9, 10 of the mounting plate 11 and a clamping plate 12, the frictional clamping force being varied by adjustment of screws 14 extending through holes in plate 12 into threaded bosses 18 on plate 11. The arm 5 extends, in use, inside the vehicle to a handle 7 by which it is swivelled about the centre of the ball 6, this centre being between the skins 1 and 2. The mounting plate 11 has further bosses 16 to receive nut members 28 for securing the assembly to the vehicle door. The socket portions 9 and 10 have linings of a resilient or plastics material on their ballengaging surfaces. Aperture 13 and a corresponding aperture 25 in plate 12 are of shape and size such as to allow the desired range of swivelling arm movement to adjust the orientation of the mirror head. In another form, Fig. 8, mounting member 50 defines a socket 53 for the ball 6 in a passage 56 which extends through the member 50 to threadedly receive a clamping ferrule 54.
Patent GB-890478-A (GB)
Title: Improvements in and relating to electric sockets
IPC: H01R33/46
Filed: 1960-06-23
Abstract: 890,478. Lamp-holders. GENERAL MOTORS CORPORATION. June 23, 1960 [July 13, 1959], No. 21968/60. Class 38 (1). A socket, particularly for a lamp, comprises a hollow resilient insulating body 10 from one end of which extend shouldered extensions 10p adapted to snap into engagement with an aperture 17p in a panel 17, insertion of the socket in said aperture being limited by a flange 10f on the body which abuts one face of the panel. The flange is apertured at 10a for the passage of resilient arms 20 integral with the body at one end and having hooks 20a at their free ends which engage the other face of the panel to prevent inadvertent withdrawal of the socket. The inner end of body 10 is formed with a pair of chambers 10z in each of which is located a contact member 12 comprising a ferrule 12f, crimped on to a wire c, and a transversely extending, integral, bowed contact arm 12c which projects through an aperture in the bottom wall of chamber 10z to engage a lamp contact 14c, Fig. 5. The contact is located in the forward direction by a lateral guide portion 12g which engages a slot 10g in the chamber wall, and the contact prevented from withdrawal by a lateral prong 12p which engages a shoulder 10i opposite the slot 10g. A metal shell 16 located centrally of the body and forwardly of the contacts 12 by tongues 16l wedged in slots 10l, receives the lamp cap with a bayonet connection and has a pair of resilient contact arms 16 which extend outwardly between the extensions 10p on the body to engage the panel aperture 17p and a printed circuit, if provided, on the panel.
Patent GB-152003-A (GB)
Title: Improvements in or relating to steering columns for motor driven vehicles
IPC: B62D1/10
Filed: 1920-07-22
Abstract: 152,003. Grigsby, B. J. Sept. 26, 1919, [Convention date]. Instrument boards.-The switches, speed indicator, and other instruments usually mounted on the dashboard, are mounted on a board mounted near to, and concentric with, the steering-wheel. In the form shown in Fig. 1, a fixed tube 10 is mounted within the hollow steering-column 13 on which the steering-wheel 32 is mounted. The tube 10 is fitted with a casing 17 of which the switchboard 18 forms the cover and has mounted thereon a speedometer, ammeter, and timepiece, a shielded lamp 23 being provided for illuminating the switchboard. The spark and throttle levers 24, 25 pass through slots in the switchboard, and the electric connections 30 and a flexible shaft 29 to the speed indicator are passed down the tube 10. Bearings 15, 16 are provided between the tube 10 and steering column 13, both of which are mounted on a bracket 12. Additional bearings 14 are provided between the steering column and a fitting on the dash-board 11. The switchboard may be restricted to the lower half of the steering wheel or may be arranged beneath the steering-wheel; the steering-wheel is then mounted on a shaft enclosed by a fixed tube on which the switchboard is mounted.
Patent GB-184796-A (GB)
Title: Apparatus for measuring speeds
IPC: G01P3/02
Filed: 1922-08-12
Abstract: 184,796. Seguin, A. Aug. 19, 1921, [Convention date]. Addition to 155,791. Impulse and momentum speed indicators.-In an instrument of the kind described in the parent Specification, the pointer q is shifted, when the speed changes, by means of an intermediate member 8 having a lost motion connection with the pointer and being controlled by the striker 5 and also actuated from the prime mover 4 through an intermittent or friction drive. The recurrent disconnection of the driving-pin 13 on the wheel 4 from the striker and the balance wheel 6 mav be effected in mounting the latter eccentricallv with respect to the wheel as shown in Fig. 1. In this construction, the member 8 is in the form of a disc and is driven by the striker through a pin t and also by the wheel 4 through a spring friction pawl 13<11>. A pin 9<1> depending from the pointer engages a large aperture in the disc 8 so that when the speed is constant the swing of the disc under the alternate propulsions by the balance wheel and the wheel 4 does not affect the pointer. In a modification, the spring pawl 13<11> is replaced by a friction gear train driven by wheel 4, and the periodic disconnection is effected as in the parent case.
Patent GB-774959-A (GB)
Title: Improvements in or relating to frequency-division circuit-arrangements
IPC: H04N5/06
Filed: 1955-07-29
Abstract: 774,959. Automatic frequency and phasecontrol systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 29, 1955 [Aug. 4, 1954], No. 22012/55. Class 38 (4). In a frequency division arrangement, e.g. for television transmitters, a sub-multiple of the frequency of a generator 14 is compared with that of a standard 15, e.g. mains frequency, in a phase comparator 16 and frequency and phase locked to the standard 15 by a retroactive loop 17. The frequency divider may be a cascade of bi-stable binary counters 1-10, the last of which is coupled through pulse delay means 13 to the input of certain of the binaries so that a division ratio of less than 2<SP>10</SP>=1024 such as 625 may be employed. Further, the inputs to certain binaries 2-5 may include make and/or break contacts a, b, c operated by relays A, B, C, energized in succession by the output of a frequency meter 18 responsive to the frequency of the standard 15 so that the frequency division ratio alters, say from 625 to 619, 631, 637, &c., to avoid undue variations in the frequency of generator 14 with mains frequency fluctuations exceeding certain limits.
Patent GB-921661-A (GB)
Title: Paper making machines equipped with waste heat recovery plants
IPC: D21F5/20
Filed: 1960-06-23
Abstract: 921,661. Drying sections in paper-making machines. SULZER FRERES S.A. June 23, 1960 [July 17, 1959], No. 22028/60. Class 96. [Also in Group XIII] The drying section 1 of a paper-making machine comprises a travelling felt enclosed in a hood 2, from which warm exhaust air is conducted through a pipe 3, a heat-exchanger 4, in which it heats water circulating in a hot water system 5, then through a pipe 10 and a heatexchanger 11, in which it heats fresh air entering through a pipe 12, and finally through a pipe 17 and a blower 18, which delivers the exhaust air into the atmosphere. The rate of delivery of exhaust air by the blower, i.e. its speed, is controlled by the humidity of the air within the hood, measured at a point 19 and transmitted to the blower along a signal line 21, and/or by the temperature of the exhaust air leaving the hood, measured at a point 20 and transmitted along a signal line 22. The blower 18 may be controlled, by the temperature of the exhaust air, so that its speed does not fall low enough to cause the humidity of the said air to exceed a predetermined value. Heated fresh air is conducted, from the heat-exchanger 11, through a pipe 13, a blower 14 and a heater 15 into the base of the drying section to serve as below felt air. The rate of delivery of the blower 14 may be controlled according to the performance of the blower 18, along a signal line 23 connecting them, so that the speed of the blower 14 varies directly as the speed of the blower 18. Some of the heated fresh air may be conducted, through a pipe 16, to an air-conditioning or ventilation plant (not shown).
Patent GB-959934-A (GB)
Title: Imitation windows
IPC: E06B3/00
Filed: 1961-12-19
Abstract: 959,934. Imitation windows. F. SKRZYWANEK. March 12, 1963 [Dec. 19, 1961], No. 22111/61. Heading F4R. An imitation window, especially for use in basement rooms and other rooms enclosed on all sides by interior walls, comprises a framework 4 inserted in a recess in a wall and closed by translucent screens 5, 6 the front screen 5 simulating a window pane, a plurality of fluorescent discharge lamps 7 arranged parallel to one another behind the rear screen 6 and reflectors 10 for directing the light from the lamps on to the screens, the arrangement of the components being such as to give a daylight effect without shadows or bright areas. The screens may be of ground glass or the material known under the Trade Mark "Perspex." The screens 5 may be coloured e.g. to simulate stained glass.
Patent GB-1034325-A (GB)
Title: Turbine engine exhaust arrangement
IPC: B64C27/12
Filed: 1965-05-25
Abstract: 1,034,325. Gas turbine exhausts. UNITED AIRCRAFT OF CANADA Ltd. May 25, 1965 [Dec. 11, 1964], No. 22119/65. Heading F1T. The exhaust casing of an axial flow gas turbine engine has a divergent forward section 11 and a convergent rearward section 12 having lateral outlets 16 and 17, Fig. 2 (not shown), defined by ducts 18 projecting from wall 10. The casing also includes an inner slightly conical hollow duct 19, Fig. 3 (not shown), and a flared hollow rear section 22 defining a volute V with wall 10. Guide vanes 26 intermediate the last stage turbine L, Fig. 3, and volute V are arranged to direct the exhaust gases tangentially so that they swirl around the axis A and flow smoothly through outlets 16, 17.
Patent GB-1074463-A (GB)
Title: Method for producing 3,6-dioxo-2,5-dimethylpiperazine
IPC: C07D241/08
Filed: 1965-05-25
Abstract: 3,6 - Dioxo - 2,5 - dimethyl - piperazine is prepared by heating alanine (racemate or optically active isomer) with phenol and/or at least one nuclear substituted derivative of phenol in the presence of an acidic catalyst. Solvents immiscible with water may be employed, and catalysts exempified are phosphorus pentoxide and hydrochloric, sulphuric and p-toluenesulphonic acids; alanine salts may be used.
Patent GB-889449-A (GB)
Title: Improvements in temperature responsive electrical control system
IPC: G05D23/24
Filed: 1958-07-10
Abstract: 889,449. Control of heating resistors. GENERAL ELECTRIC CO. July 10, 1958 [July 12, 1957], No. 22167/58. Class 38 (4). [Also in Group XXXVII] In a control circuit for an electric blanket, a heater wire 7 is separated from a control wire 8 by a thermo-sensitive layer 9. Operation of a start-push 10 closes contacts 11 to energize an operating-coil 4 of a relay 2 and simultaneously open contacts 12 to isolate the heater wire from contacts 14 of the relay 2. Closing of the contacts 14 energizes a holding-coil 3, lights an indicating neon lamp 15, and on release of the start-push feeds the heater wire through an ambient temperature-responsive device 17. Over-heating of the thermo-sensitive layer causes the relay 2 to be released due to the operating-coil acting as a number of shorted turns or setting up a flux opposing that due to the holding-coil. A stop-push 18 short-circuits the operating coil. In another embodiment, Fig. 2 (not shown), only one end of the control wire is connected to the operating-coil, the startpush being replaced by a push manually closing the relay 2, and the stop-push is connected to short - circuit the holding - coil. Specification 696,369 is referred to.
Patent GB-138287-A (GB)
Title: Improvements in or relating to ordnance recoil apparatus
IPC: F41A25/02
Filed: 1917-12-03
Abstract: 138,287. Dawson, Sir A. T., and Buckham, Sir G. T. Dec. 3. 1917. Recoil apparatus.-Consists in mounting a buffer-tank K on the gun barrel A, either surrounding it, as shown, or on one side of, or above it. A glazed inspection opening k' and a safety-valve are provided in the tank. The invention is shown applied to the hydro-pneumatic recoil and runout apparatus described in Specification 138,131, wherein the brake cylinder recoils with the gun. The tank is connected to the rear end of the brake cylinder by a pipe K<1>.
Patent GB-433093-A (GB)
Title: Improvements in and relating to collapsible tubes and other containers having screwed nozzles adapted to be closed by caps
IPC: B65D35/12
Filed: 1934-07-31
Abstract: 433,093. Collapsable tubes. CARR, R. D., c/o Dale Metal Containers, Ltd., New Southgate, and GIBLIN, A. A., 3, Brunswick Road, New Southgate, London. July 31, 1934, No. 22299. [Class 11] [See also Group XVII] Externally screwthreaded nozzles of rubber, artificial or natural resin, or other plastic material are non- rotatably attached to collapsable tubes or other metal containers by the aid of cement &c., or by pressing, spinning, or otherwise deforming the metal of the container, or by both means. Several constructions are described. In Fig. 1 the nozzle 1 provided with a corrugated, milled or otherwise roughened flange 3 to prevent rotation, is held against a shoulder 8 at the end of the container by turning against the flange at 6 the metal of a depending rib 5, with or without the interposition of sealing varnish or cement. The inside of the rim 7 may be roughened, in which case the nozzle flange need not be. Fig. 5 shows a nozzle held in place over a rim 19 by the aid of cementing material 21. Fig. 9 shows a nozzle formed with a flange 33 engaging a recess in the end of the container, and a depending part formed with a peripheral groove 35 into which the metal of a boss 36 is pressed, the lower end of the boss being turned over the nozzle end at 37. Rubber &c. packing may be provided between the nozzle and the seating. Reference has been directed by the Comptroller to Specification 420,873.
Patent GB-294987-A (GB)
Title: Process for preparing printing blocks
IPC: B41C1/02
Filed: 1928-08-02
Abstract: 294,987. GuÚrard, J. R. Aug. 3, 1927, [Convention date]. Ornamenting. - The Specification as open to Sect. 91 (3) (a) describes a method of ornamenting articles in which the article is first provided with a coating of a composition prepared by mixing a so1ution of white lac gum in an alcoholether mixture with a solution of sandarac in alcohol and adding thereto a solution of nitrated cotton in acetone. When the coating is dry, the design is engraved therein to expose the surface of the article and metals are deposited along the lines of the design by chemical displacement or by e1ectro1ysis. The composition coating is then removed. To facilitate engraving the design, the artic1e may be given a dark coating, e.g. of brown oxide of manganese, before receiving the composition, this coating being removed, e.g. by sodium su1phite, before the application of the metal. This subject-matter does not appear in the Specification as accepted.
Patent GB-1002357-A (GB)
Title: Frequency changer for the frequency conversion of three phase alternating currents
IPC: H02M5/00
Filed: 1962-06-12
Abstract: 1,002,357. Frequency changing. BROWN BOVERI & CO. Ltd. June 12, 1962 [June 13, 1961], No. 22484/62. Heading H2F. A three-phase frequency changing arrangement comprises three circuits each consisting of a three-phase secondary winding 7, 8 and 9, associated with pairs of back-to-back controllable rectifiers 1 and 2, 3 and 4, 5 and 6, one pair per phase, the three circuits being connected in delta and low frequency output being obtained from the delta points U, V, W, and the control being such that only two rectifiers are conductive at any instant. The rectifiers may be semi-conductor controlled rectifiers or mercury arc rectifiers (which may be multianode vessels). Arrangements for the control of the rectifiers are disclosed.
Patent GB-969465-A (GB)
Title: Carrier assembly for rotary coupler
Inventor: KULIEKE FREDERICK CHARLES
IPC: B61G7/10
Filed: 1963-06-06
Abstract: 969,465. Combined buff and draw gear. AMSTED INDUSTRIES Inc. June 6, 1963, No. 22568/63. Heading B7T. A coupler shank 38 rotatable for tippling- is connected for pivotal and rotational move, ment relative to a draft gear housing 10 by a pin 52 having its ends engaged in a collar 46 rotatable within a cylindrical surface 30 formed within a yoke 20. The shank may also move axially against the resistance of a spring 54, and a cylindrical portion of the shank is supported by a flanged saddle 76 transversely slidable relative to a striker 14 on a carrier iron 64 connected by a nut and bolt 70 to the striker. Lugs 85 on the saddle retain the shank during dumping operation of the vehicle. Specification 771,291 is referred to.