baber/WOPTO huggingface dataset:
Patent GB-1454513-A (GB)
Title: Production of bodies from synthetic plastics material
IPC: B29C45/46
Filed: 1973-04-14
Abstract: 1454513 Injection moulding GKN GROUP SERVICES Ltd 6 June 1974 [14 April 1973] 18116/73 Heading B5A A series of articles, e.g. polypropylene preforms are injection moulded in mould means comprising a series of interconnected mould cavities 24 having an input end and an output end by accumulating a charge of material in a chamber 72, injecting the accumulated material through a nozzle 70 into the mould cavity 24a at the input end of the series, separating the nozzle 70 from the moulds, removing mould means 22, 23 from the output end and after they have been emptied inserting them at the input end of the series, engaging the empty mould cavity so formed with the nozzle, and repeating the injection cycle, there being a compensating chamber 73 connected to the accumulation chamber 72 by a cut-off valve 57 and having means to apply pressure to material therein in order to supply further material to the moulds to compensate for shrinkage on cooling, independently of the accumulation of material in the chamber 72. The mould cavities are formed by rings 23 and apertured discs 22 within a tube 19 mounted on a movable table 14 of an hydraulic mould damping unit. A ram 27 ejects the lowest ring and disc when the material therein has solidified. The top mould disc 22 is engaged by a valved nozzle 70 which is spring biased downwardly. With the slide valve 57 open a screw 36 is forced forward by a ram 47 into the chamber 72 to inject the accumulated charge through the nozzle 70 via the compensating chamber 73. The material flows through bores 54, 51 and 63. A piston 53 passes through a sleeve 52 in bore 51 and terminates in bore 63 in a head portion 65 having inclined vanes. The compensating chamber 73 is formed by the portion of bore 63 below the piston head 65 which is raised by the pressure of the material being injected against the pressure of a ram 69. After injection valve 57 is closed and the pressure of ram 69 on the material in chamber 63 supplies material to the moulds to compensate for shrinkage while the screw 36 is rotated by a drive 38 and moves backwards to accumulate a further charge in chamber 72. To prevent degradation of material on the walls of the bore 63, the valve 57 is opened while the moulds are disconnected from the nozzle 70, part of the charge is displaced from chamber 72 by the screw 36 into chamber 73 thereby raising piston 53 to its top position, and the material is forced back into chamber 73 by lowering ram 69 thereby wiping material from the walls of the bore 63. The material may alternatively be injected directly from the accumulation chamber into the moulds through a passage from which the compensating chamber branches off so that material is fed to the compensating chamber and the mould simultaneously.
Patent GB-753783-A (GB)
Title: Process for the dehydroisomerisation of c-ring naphthenes
IPC: C07C5/387
Filed: 1954-06-21
Abstract: C5-ring naphthenes having one or more methyl groups are converted to the corresponding aromatic hydrocarbons by contacting them in the presence of hydrogen at a temperature of 420 DEG  to 570 DEG  C. with a catalyst having a surface area greater than 300 square metres per gram and containing from 0.1 to 0.8 per cent of alumina and 0.1 to 1 per cent of platinum.  The hydrogen may be in an amount of from 1 to 12 mols. per mol. of hydrocarbon and may be introduced at pressures between 5 and 1000 lbs. per square inch absolute.  The catalyst which may be made according to the method described in Group III may be in the form of granules, pellets or of a powder.  The process is particularly applicable to the conversion of methyl cyclopentane to benzene, and dimethyl cyclopentane to toluene.  Specification 686,641 is referred to.ALSO:A catalyst for use in the conversion of C5-ring naphthenes having one or more methyl groups to the corresponding aromatic hyrocarbons, as described in (Group IV(b)) consists of silica gel having a surface area greater than 300 square metres per gram and containing from 0.1 to 0.8 per cent of alumina and 0.1 to 1.0 per cent of platinum.  It may be made by adding an aqueous solution of sodium disilicate to a mixture of aqueous solutions of hydrochloric acid and aluminium chloride and then ageing the resulting hydrogel for 3 days.  After washing, and drying at 120 DEG C. it is then carefully soaked in a solution of tetrammine platinous chloride, washed, dried and then calcined, in vacuum, or in an atmosphere of nitrogen or hydrogen. Specification 686,641 is referred to.
Patent GB-544901-A (GB)
Title: Improvements in or relating to platen-presses for working cardboard blanks
IPC: B41F1/26
Filed: 1940-12-24
Abstract: 544,901. Cutting-out presses. BOBST, H. Dec. 24, 1940, No. 18122. [Class, 31 (i)] [Also in Group XVI] Cardboard blanks .are fed to and from a platen machine .which may comprise a fixed member 14 fitted with a punch for cutting and scor-. ing and a reciprocating lower member 13 actuated by four pairs of toggle links 16 connected by links 17 and operated by a link 18, lever 19, and connecting-rod 21 operated by a crank 22, the toggle mechanism acting to give a dwell to the platen 13, when in the open position, sufficiently long to permit of the feeding of a new blank to operative position. The blanks are fed and delivered by a pair of intermittently operated chains 6 fitted with a series of gripper bars 5, 5<SP>1</SP>, 5", Fig. 1, which are so arranged that when the bar 5 is in the position to receive a blank 7, the bar 5<SP>1</SP> is in the position to support a blank in working position, and the bar 5<SP>11</SP> is in position to be acted upon by a pressing device 23 which causes the finished blank to be deposited on to a pile 2. As shown in Fig. 2, each gripper is formed with a spring-pressed upper member 29 which is raised to open the grippers to receive the blanks by screws 31 on an oscillating member 10 which is fitted with front registering stops 32. The gripper bars are formed with apertures which are received upon pins carried by the platen in order to register the grippers accurately in sheet-receiving and work-supporting positions. The gripper bars when moved across the platens are guided by external guides, and, when the platen 13 rises, a support 24 thereon raises the bar 5<SP>1</SP> to the level of the upper platen.
Patent GB-650132-A (GB)
Title: Improvements in or relating to insecticidal compositions
IPC: A01N25/34
Filed: 1948-07-06
Abstract: An insecticidal or larvicidal composition for the control of mosquito larvae &c. on small areas of water is in the form of a moulded or compressed tablet of a composition having a specific gravity less than that of water and consisting of finely divided particles of a filler having a specific gravity less than that of water pre-coated with an active insecticidal substance, which tablet will disintegrate when contacted with water.  The filler may be dust or granules of cork or sawdust pre-coated with D.D.T., the gamma isomer of benzene hexachloride, "chlordane," "toxaphene," Paris green or cuprous cyanide.  The pre-coated filler may be moistened with a solution of gum acacia, partially dried, granulated, and compressed to form a tablet.  Specification 508,125 is referred to.
Patent GB-624822-A (GB)
Title: Improvements in or relating to locks
IPC: E05B63/24
Filed: 1947-07-10
Abstract: 624,822. Striking plates. PARKER, F. L. July 10, 1947, No. 18297. [Class 44] The key operated bolt of a lock is adapted to cooperate with a U-shaped member which is normally secured in a fixed position in a door jamb, an operating knot being associated with the U-shaped member to release it for rotation so that the door may be opened or closed without retracting the bolt. The U-shaped member 3, Fig. 3, is mounted in an opening 2, Fig. 2, in the door jamb and is rotatably carried on a rod 7 the upper portion of which is of rack form to co-operate with a toothed wheel on the spindle 11 of the knob 12. A rib 4 on the underside of the member 3 fits in a slot in a fixed plate 6 securing the member against rotation. The member is released for rotation by the disengagement of the rib 4 from the slot when it is lifted against a spring 13 by rotation of the knob 12 and the lock bolt held between the limbs of the member is then 'freed by pressure on the door. A catch plate 18 pivoted over the opening 2 may be lowered to engage the notches 19, Fig. 3, in the limbs of the U-shaped member 3 to prevent its rotation. If the door is locked with the catch plate in the operative position it can only be opened by retraction of the bolt. A lower extension 22 of the plate 6 is formed with an aperture 23 for the latch bolt.
Patent GB-625240-A (GB)
Title: Improvements in or relating to liquid heating apparatus
IPC: F24H1/20
Filed: 1947-07-11
Abstract: 625,240. Electric water heaters. TULLY, E. E., and NORRIS, R. G. July 11, 1947, No. 18409. [Class 39(iii) ] [Also in Groups XXIX and XXXVII] An electric water heater is provided with a movable cover 60 for a water control valve 24 and for a switch, the cover 60 having means for engaging the controls and so operating them on movement of the cover. The cover 60 is rotatably mounted on a boss 61 on a header 12 on a casing 10 containing two U-shaped water tubes, one of which is shown at 14, each containing a heater element 17. Water enters at 20, half flowing through each U-tube, the flow then recombining to pass down tube 29 to the outlet. The undersurface of the cover 60 has ramps and raised segments to actuate the valve 24 on being rotated. A ramp is adapted to force down a plunger 32 to open the valve 24 on the water inlet, and a blade 66 pivotally mounted at 67 is engaged in a recess at its rear by a pin 70 screwed into the cover. Hence on rotating the cover, the blade 66 is swung to bridge one or other of two pairs of contacts to close the circuit through one of the heaters 17. Different degrees of heating may be obtained by rotating the cover 60 in the opposite direction when a second ramp opens the valve 24 to a different extent.
Patent GB-767844-A (GB)
Title: Improvements in or relating to electric plugs and sockets
Inventor: JEWELL GEORGE PERCY
IPC: H01R13/645
Filed: 1954-06-24
Abstract: 767,844. Two-part couplings. PLESSEY CO., Ltd. June 23, 1955 [June 24, 1954], No. 18513/54. Class 38 (1). In order to ensure correct mating of a plug and socket, each is provided with a spring- loaded key 13 comprising a hexagonal portion 13a and a half shaft portion, and is partially withdrawable against spring 16 by means of a tool inserted in a bore 14 so that the keys may be rotated to the required position relative to the contacts in the plug and socket. A fluidtight seal is formed round ribs 9 of the contacts by resilient discs 10 which are compressed between insulating plates 2, 6. The socket is mounted on a panel 17 by nuts 19, and the plug screwed to the socket by a ring 20. The keys may also serve as contacts, for example earth contacts, and the hexagonal portions may be replaced by portions having more or less sides corresponding to the number of contacts.
Patent GB-1112894-A (GB)
Title: Vapour deposition coating method and apparatus
IPC: B05D7/24
Filed: 1965-05-03
Abstract: A polymer forming or polymeric material e.g. poly-p-xylylene is deposited from a vapour on a substrate 16 of e.g. aluminium foil in a vacuum chamber 10 to which the vapour is fed through a port 24.  The deposition chamber is surrounded by a further chamber 34 which contains supply and take-up rollers 26, 28. The vapour is confined to the chamber 10 by providing vacuum ports 18, 20 adjacent to the inlet and outlet of the chamber which maintain a pressure difference between the chambers. In modifications (Fig. 2, not shown) rollers are provided to feed the foil through the chamber three times; (Fig. 3, not shown) the vapour may be deposited on a cooled drum and removed to form a polymeric film; (Fig. 4, not shown) skewed rollers are used to provide a double pass <PICT:1112894/C3/1> of the substrate foil through the chamber; and (Fig. 5, not shown) the foil may pass through hydraulic seals of e.g. mercury or low melting point alloy.  Vapours containing p-xylylene diradicals can be formed by pyrolysis at 450 DEG  to 700 DEG  C. by a cyclic dimer of the formula <FORM:1112894/C3/1> where Y is any monovalent inert substituent group, preferably hydrogen.  Alpha substituted p-xylylene diradicals are prepared by the pyrolysis of an aryl bis-sulphone.  Reactive diradicals are also prepared by pyrolysis of a diaryl sulphone.  The following monovalent inert groups (other than hydrogen) can be placed on the aromatic nuclei or aliphatic a -carbon atoms: chlorine, bromine, iodine, fluorine, alkyl groups such as methyl, ethyl, propyl, butyl, and hexyl, cyano, phenyl, amino, nitro, carboxyl, and benzyl.  Pyrolysis may take place in the presence of inert vapours, e.g. nitrogen argon, carbon dioxide or helium.ALSO:<PICT:1112894/C6-C7/1> A polymer forming or polymeric material, e.g. poly-p-xylene, is deposited from a vapour on a substrate 16 of e.g. aluminium foil in a vacuum chamber 10 to which the vapour is fed through a port 24.  The deposition chamber is surrounded by a further chamber 34 which contains supply and take-up rollers 26, 28.  The vapour is confined to the chamber 10 by providing vacuum ports 18, 20 adjacent to the inlet and outlet of the chamber, which maintain a pressure difference between the chambers. In modifications Fig.2 (not shown) rollers are provided to feed the foil through the chamber three times; Fig.3 (not shown) the vapour may be deposited on a cooled drum and removed to form a polymeric film; Fig.4 (not shown) skewed rollers are used to provide a double pass of the substrate foil through the chamber; and Fig.5 (not shown) the foil may pass through hydraulic seals of e.g. mercury or low melting point alloy.  The substrate may be cooled by blowing an inert gas through a porous, sintered member in the deposition chamber. Inert gases, e.g. nitrogen or argon may fed into the chamber 34 through a nozzle 38, and deposition may take place in the presence of nitrogen argon, carbon dioxide and helium.
Patent GB-747679-A (GB)
Title: Improvements in electric lamps
Inventor: ANTELL GEORGE RICHARD
IPC: H01K1/70
Filed: 1953-07-03
Abstract: 747,679. Electric incandescent lamps with cut-outs. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 14, 1954 [July 3, 1953] No. 18550/53. Class 39(2).. In an electric incandescent lamp of the kind intended for series connection, e.g. for decorative purposes, and having a semi-conducting member or cutout carried between the filament supporting wires, the semiconducting member comprises a mixture of powdered cuprous oxide and powdered glass fused into a bead-like body 5 which serves to locate the supporting wires 2 with respect to one another. Alternatively the body 5 may be additional to the glass bead which normally locates the filament supporting wires, in which case the latter bead is the nearer to the filament. The mixture of powdered cuprous oxide and powdered glass may be formed as a small collar which is slipped over the supporting wires and heated and fused around them, or a mixture of the powders or a pellet of the same materials may be packed into a glass collar previously positioned over the supporting wires and heated to fuse the glass collar and powdered mass. In the latter instance the fusion of the powdered mixture is preferably effected, or assisted, by the passage of an electric current therethrough while the glass is hot. After the bead has been formed, a small amount of carbon powder is preferably applied to its lower surface, either by spraying a film of carbon in a cooling jet of nitrogen, or applying a very weak suspension of colloidal graphite, the object being to facilitate the breakdown of the semiconducting head when the filament fails.
Patent GB-530495-A (GB)
Title: Vertical hot water boiler
IPC: F24H1/48
Filed: 1939-06-26
Abstract: 530,495. Heating water. OHLSSON F. O. A. June 26, 1939, No. 18573. Convention date, July 2, 1938. [Class 64 (i)] In a hot water boiler, a firebox 4 is separated from a flue combustion chamber 5 by a wall of vertical tubes 11 to the lower end 10 of which feed water is supplied and the upper ends of which are open to a water space 13, and a separate water flow heater is formed in the water space by tubes 22 passing up through one or more of the tubes 11 from a lower cold water supply pipe 24 to coils 22 in the water space and so to a hot water outlet 25. Water passes from the space 13 by an outlet 19 or 21 above the roof 14 of the firebox to a radiator system and returns to the boiler at 20 or to the bottom of the tubes at 10. Flue gases pass up over the tubes 11, round a dome 12 into which the tubes open, and down to a flue outlet 17.
Patent GB-844818-A (GB)
Title: Alkyloxy-and alkylenedioxy-benz[c] acridine derivatives and methods for preparing the same
Inventor: MORGAN EDWARD NORMAN
IPC: C07D221/18
Filed: 1958-06-11
Abstract: The invention comprises benz-[c]acridine derivatives of the formula: <FORM:0844818/IV(b)/1> and acid addition salts thereof, where A is a lower alkylene radical of 2-6 carbon atoms separating the nitrogen atoms by at least two carbon atoms, R and R1, are methyl groups or together form a methylene radical, the lower alkyl groups are groups containing 1-4 carbon atoms and R2 and R3 are hydrogen atoms or methoxy radicals (e.g. 9:10-dimethoxy- 9:10-methylenedioxy and 3:4:9:10-tretramethoxy-, 7-g -diethylaminopropylaminobenz-[c]-acridine dihydrochloride), and their preparation by reacting the appropriate 7-halo (e.g. 7-chloro-) benz-[c]-acridine with a diamine of the formula H2N-A-N (lower alkyl)2 under anhydrous conditions, preferably by heating in a phenol as a solvent.  The compounds are used as chemotherapeutic agents suitably in the form of salts with hydrohalic, sulphuric, acetic, benzoic, citric malic, maleic, gluconic and ascorbic acids.  7-Halobenz-[c]-acridines used as starting materials are made by condensing a halobenzoic acid of the formula: p   <FORM:0844818/IV(b)/2> with a naphthylamine derivative of the formula:  <FORM:0844818/IV(b)/3> to give an N-a -naphthylanthranilic acid derivative (e.g. 4:5-dimethoxy- and 4:5-methylenedioxy-N-a -naphthyl anthranilic acid and 4:5-dimethoxy-N-{-(1)} (5 : 6 - dimethoxy - naphthylanthranilic acid) and heating with a cyclizing agent such as POCl3 or POBr3 to give the 7-halobenzacridine corresponding to the required 7-dialkylamino-alkyl compound.  5:6 - Dimethoxy - 1 - naphthylamine is made by oxidising 5-acetamido-2-amino-1-naphthol to 5 - acetamido - 1:2 - naphthoquinone, hydrogenating to 5-acetamido-1:2-diol, methylating with CH3I and alkali to 5:6-dimethoxy-1-acetamidonaphthalene and hydrolysing.
Patent GB-1101837-A (GB)
Title: Glass sheet forming method and apparatus
IPC: C03B17/06
Filed: 1965-05-04
Abstract: In the production of glass sheet by flowing molten glass over the edges of a trough 14 at the top of a wedge-shaped member 26 having downwardly converging flat surfaces 29 so that the flowing glass unites into a single sheet 39 of glass at the lower edge, the molten glass 37 is fed into the trough 14 from one end only and the vertical cross-section of the trough is greater at that end then at the other so as to control the height of the molten glass overflowing the upper edges of the trough.  The height of the overflow may be uniform along each edge to give glass sheet of uniform thickness or may be controlled to vary progressively <PICT:1101837/C1/1> along the edge to give sheets of wedge-shaped cross-section or in particular this variation is obtained by the trough support 12 being pivotally adjustable as by a roller, wedge or cam 16.  A formula is given for the dimensions of the trough to give uniform overflow.  The upper edges (34) and 36 may be removable and are preferably of platinum clad molybdenum.
Patent GB-532669-A (GB)
Title: Improvements in or relating to the cleaning, e.g. pickling, washing or degreasing, of metal articles, including tin-plates
IPC: C23G3/00
Filed: 1939-06-28
Abstract: 532,669. Metals, cleaning. CURRAN BROS., Ltd., and CURRAN, J. June 28, 1939, No. 18803. [Class 82 (ii)] Metal articles, e.g. plates, cleaned, e.g. picklewashed or degreased by subjecting-them to treatment with jets of liquid, e.g. pickling liquid, the jets being directed upon the upper edges of a pack of the articles situated in, or moving through, a vertical position or in a position sufficiently near the vertical to enable the articles to be separated by the jets. For treating the plates, packs of the latter are fed by a conveyer 14 into compartments formed by radial arms 4 secured to discs 2 mounted on a rotary shaft 1 and as the latter turns are brought under pipes 9, mounted, in a header 13 and having a row of nozzles, being fed with acid under pressure by means of a pump which sucks the acid from a sump 11. The treated plates are discharged from the compartment 16 on to a conveyer similar to the conveyer 14 which may consist of a number of endless ropes of rubber. Instead of two conveyers, one conveyer having a number of sections which pass between the rods and are carried by sheaves or sprockets situated at a convenient distance from the rotor may be used.
Patent GB-532311-A (GB)
Title: Improvements in apparatus for treating mixtures of gases, vapours or fumes with electric discharges
IPC: B01D5/00
Filed: 1939-06-30
Abstract: 532,311. Electrical precipitation apparatus. DYE. A. W. June 30, 1939, No. 19049. [Class 39 (i)] Relates to apparatus for separating readily condensable materials from relatively less condensable materials in gases, vapours or fumes, of the type comprising two oppositely charged electrodes moving relatively to each other, and consists in forming one or both of the electrodes of dome-shaped plates. As shown, the gas treating chamber 20 forms one electrode and is insulated from the inlet pipe 23 and outlet pipe 21. The other electrode consists of a shaft 27 carrying a series of spaced domed plates 28 and rotated in insulating bearings by a mechanism 29. A sump 25 at the bottom of the chamber collects separated liquid which drains through the pipe 26. The plates 28 may be provided with points. In a modification, the oppositely charged electrodes are formed by spaced plates arranged in overlapping staggered relation on two shafts which may be geared to rotate in the same or opposite directions, or one shaft may be stationary.
Patent GB-241651-A (GB)
Title: An improved case or holder for railway or other tickets
IPC: A45C11/18
Filed: 1924-08-12
Abstract: 241,651. Lask, J. C. Aug. 12, 1924. Ticket cases.-In a railway-ticket or like case adapted to display also a photograph of the owner, the ticket and photograph are secured in the case in such manner that withdrawal of either is impossible without mutilating the ticket. The securing-means comprises a hinged clip 5 having a stud 6 adapted to engage beneath a spring 7, release of the stud being permitted by depression of the spring by a lever 9 which is normally locked in position by the edge of the ticket.
Patent GB-182696-A (GB)
Title: Process for preparing colloids and colloidal solutions
IPC: B01J13/00
Filed: 1921-07-15
Abstract: Colloidal solutions of elements are obtained by treating in a colloid mill, as described in Specification 155,836, a mixture capable of yielding the element by precipitation, preferably together with a protective colloid.  The products may be concentrated such as by ultra-filtration as described in Specification 155,834.  In an example, silver solution is prepared from ammoniacal silver nitrate and formaldehyde using agar-agar as protective colloid.  Other elements which may be prepared in a similar manner are gold, mercury, platinum, palladium, lead, sulphur, selenium, arsenic, &c.