baber/WOPTO huggingface dataset:
Patent GB-645433-A (GB)
Title: Improvements in and relating to electric heating devices
IPC: H05B3/34
Filed: 1948-01-30
Abstract: 645,433. Automatic temperature control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 30, 1948, No. 2855. Convention date, Feb. 1, 1947. [Class 38 (iv)] [Also in Group XXXVII] A blanket 1 has two heating resistance wires 2, 3 having different temperature coefficients of resistance connected in parallel to a differential relay means 8, e.g. a core 9 with opposed windings 10, 11 to operate a switch to maintain the temperature of the blanket constant. One element may be copper and the other a nickel-chrome alloy. The elements 2, 3 are connected together at one end 4 and thence through a resistance 5 and switch 6 to a supply line 7. The other ends of the elements are connected to a supply line 18 through a differential relay 8 comprising a core 9 with oppositely disposed windings 10, 11. One end of each winding is connected to a terminal 12. The other end of the winding 10 is connected through an adjustable resistance 13 to the element 3, and of the winding 11 to element 2. The core 9 has an armature 14 tensioned away from the core by a spring 15 and carries a contact 16. Normally the currents through the windings are equal, but on undue rise in temperature, the armature is attracted by the core and opens the supply contact 16. A permanent magnet 20 may co-operate with a magnetic pole-piece 19 on the armature 14 strong enough only to hold it down against the spring 15 when the contact 16 is opened. The spring may bias the contact 16 to open position and the currents through the windings may be normally unequal, so that on rise of temperature the currents become equal, permitting the spring to open the contacts. In Fig. 2 a similar relay 8a has an armature 14 biassed by a spring 15 to hold contact 21 open. A motor-operated cam 23 moves the armature 14 and mechanically opens and closes the contact 21. The currents in the coils 10, 11 are normally balanced, but if the blanket becomes cool the currents become unbalanced and the armature 14 holds the contact 21 closed during revolution of the cam. The contact 21 may however be biassed to closed position by the spring 15 and periodically opened by the rotating cam and held open by the magnet coil when an unbalance in currents on rise in temperature occurs. The devices may be used in combination and the relays may be electronic.
Patent GB-1385512-A (GB)
Title: Laminated building panel and method of producing same
IPC: E04C2/288
Filed: 1972-01-20
Abstract: 1385512 Laminated cement-concrete panels J W ELISCHER 20 Jan 1972 [27 Jan 1971] 2861/72 Headings B5N and B5A [Also in Division C1] A load-bearing panel comprises a core of foamed concrete and/or concrete containing lightweight aggregate, e.g. foamed polystyrene beads, bonded at each face to an asbestos cement facing sheet solely by adhesion of the cement in the core to the sheets. The panel is made by supporting the facing sheets in a mould and forming the core therebetween. In order to assist setting and adhesion, the moisture content should be controlled so that immediately after production the water/cement ratio of the concrete is 0À4-0À5 and the moisture content of the facing sheets is 25-30%. The facing sheet may comprise a flexible sheet formed from asbestos cement, cellulosic fibre and silica. The core may in some cases be non-homogeneous, comprising a central portion of foamed concrete and outer portions of either foamed concrete of higher density or concrete containing foamed polystyrene beads as aggregate. Other lightweight aggregate, e.g. vermiculite, expanded shale, may be used in conjunction with either polystyrene beads or foamed concrete. The concrete may contain dispersants and bonding agents, e.g. lignumsulphonate, and setting agents, e.g. CaCl 2 . Moulding of core.-Concrete cores containing foamed polystyrene beads are formed by discharging the concrete from at least one nozzle so that the concrete falls to the bottom of the mould without adhering to the inner surface of the asbestos sheets or the mould and so that the concrete is built up evenly in the mould. The nozzle(s) should be spaced from the sheets and the mould by at least  inch so that the concrete falls straight to the bottom of the mould. A single nozzle may have a width equal to the panel or may be moved back and forth to ensure even build-up. In an alternative method, the concrete is pumped from the bottom of the mould. These methods avoid disintegration of the material and formation of voids.
Patent GB-719644-A (GB)
Title: Improvements in or relating to the reactivation of catalysts or contact materials
Inventor: SANDROCK JOHN DENNIS
IPC: B01J21/20
Filed: 1952-02-04
Abstract: <PICT:0719644/III/1> In vapour phase reactions employing fluidized contact material which circulates continuously between the reaction zone and a regeneration zone wherein carbonaceous deposits are burnt off it, the regenerated material flows into a pocket in the regeneration zone and passes downwardly through it while a liquid or vaporous catalytic or catalyst-promoting agent is continuously fed into the regenerated catalyst in the pocket.  Examples of reactions are the cracking of hydrocarbons by means of a silica-aluminium or silica-magnesia catalyst which is promoted by hydrogen fluoride or ammonium, fluoride, and the hydrodesulphurization of kerosine, naphtha or gas oil employing as catalyst cobalt molybdate supported on alumina and activated with hydrogen sulphide.  The figure illustrates the latter process, the gases leaving reactor 1 being separated at 13 into hydrogen which is recycled by line 4 and hydrogen sulphide solution from which the gas is recovered in column 15 and passed by line 21 to the pocket 22 in the regenerator 5 traversed by the regenerated catalyst.  The invention may also be applied to the recovery and return of a volatile catalyst, e.g. molybdenum oxide used in conjunction with alumina.  Specifications 676,915, [Group VI], and 697,227 are referred to
Patent GB-150617-A (GB)
Title: Improvements in and relating to boiler furnaces
IPC: F23L1/00
Filed: 1920-01-30
Abstract: 150,617. Stirling Boiler Co., and Mackay, H. J. S. Jan 30, 1920. Refuse fuel, furnaces for burning; fuel, feeding; grates.-A boiler furnace adapted for wood, megass, &c. comprises a self-sealing charging-hopper a, a step grate d, and a bottom grate made up of blast bars e and rocking bars g. The sealing-means for the hopper consists of a guillotine c connected by a wire rope to the door 6, so that when one is open the other is closed. Above the grate is a sloping arch l projecting into the main combustion chamber and adapted to radiate heat for drying-off moisture from the fuel on the step grate.
Patent GB-555516-A (GB)
Title: Improved method and apparatus for heating material which has to be heated to perform a machining operation thereon
IPC: B29C35/04
Filed: 1942-03-06
Abstract: 555,516. Punching, shearing, and embossing varnished paper; lubricating. BENTLEY, L. F., and PYE, Ltd. March 6,1942, No. 2976. [Classes 31 (i) and 31 (ii)] [Also in Groups XVI and XXXIV] In punching, shearing, embossing, or performing similar operations on paper boards varnished with synthetic resins the stock is heated by hot air while being fed to the machine and may be acted upon by tools heated by the exhausted hot air. The stock may be heated before being fed in which case the amount of heat applied during feeding is less. The invention may be carried out by means of the attachment shown which may be secured to a known machine by means of a bracket 6 and screws 7, and a support for the attachment comprises a pivoted telescopic arm 8 attached by a ball joint 10 to a bracket on the machine. The stock is passed over a channel 5 between an upper heater 1 and a lower heater 2 separated by spacing guides 3, 4, and held together by adjustable clamps 11, 12. Hot air 'chambers 15 lagged with silica wool packing are provided in the heaters, and hot air is admitted by one or other or both of two pipes 18, 19, and a pipe outlet 22 may direct the exhaust hot air on to the tool, and this may carry with it lubricant supplied by a pipe 23 from a drip feed lubricator 24. In a modification the hot air is passed directly into contact with the stock as it is fed to the machine, and by means of baffles in a guide which covers the stock the air current may be divided into two streams one leading from the guide towards the stock as it enters, and one leading towards the machine, or a single stream may be passed in either direction, and the stream may assist in removing swarf.
Patent GB-805867-A (GB)
Title: Improvements in or relating to sheet metal containers
Inventor: SKERRY REGINALD GEORGE
IPC: B65D41/32
Filed: 1957-01-28
Abstract: 805,867. Can closures. METAL BOX CO. Ltd. Jan. 28, 1957, No. 3031/57. Addition to 766,930. Class 66. A sheet metal container has a top 2 seamed to a cylindrical body 1 with an inwardlydirected flattened bead 4 the flat sides of which lie in planes at right-angles to the sides of the body so that its edge defines a mouth of lesser diameter for closuring by a plug portion 6 of the top. A portion 9 between the bead 4 and seam 5 forms a tear strip and has a flange 7 connecting the plug portion 6 to the sides of the top 2 closely overlying the bead 4 so that the volume after opening to re-closure is substantially the same as before. The plug portion 6 push-fits in the mouth and has ribs 8 which engage beneath the bead 4, giving a snap-action. The tear strip 9 is defined by score lines 10, along which it is torn by a key 13 co-operating with a tag 12. In another embodiment, Figs. 5 and 6 (not shown) the tear strip does not extend completely around the body.
Patent GB-1033163-A (GB)
Title: New diphenylethers and herbicidal preparations containing them
IPC: C07C319/14
Filed: 1963-01-25
Abstract: Compounds of the general formula <F\1> in which R represents H or a halogen (preferably a chlorine or bromine) atom, and A represents a phenyl radical substituted by a halogen atom, an alkyl group containing 1-4 C atoms or an alkoxy group, a nitro, cyano, thiocyano or sulphonamide group, are prepared by reacting a compound of the general formula A-OH with the corresponding substituted phenoxy halide.  In an example a compound of the formula <F\2> is produced by reacting parachlorometacresol and 2 - nitro - 4 - trifluoro - methylchlorobenzene. Several other examples are given.ALSO:Preparations for controlling undesired plant growth contain as active ingredient compounds of the general formula <FORM:1033163/A5-A6/1> in which A represents a phenyl residue which may be substituted by one or more halogen atoms or alkyl groups containg 1-4 carbon atoms, alkoxy, halogenalkyl, nitro, cyano, thiocyano or sulphonamide groups, R represents a halogen atom or an alkyl group containing 1-4 carbon atoms, alkoxy, halogenalkyl, nitro, cyano, thiocyano or sulphonamide group, and n = 1, 2 or 3, and, at least one of the following additives: solid or liquid diluents, solvents, wetting agents, emulsifying agents, adhesives, fertilisers or further pesticides.  Many examples of active ingredient and the additives are given.
Patent GB-1466701-A (GB)
Title: Polymers and prepolymers containing n,n-substituted 2,4,5- triketoimidazolidine rings
IPC: C08G18/38
Filed: 1974-01-24
Abstract: 1466701 Triketoimidazolidine polymers HOECHST AG 24 Jan 1974 [24 Jan 1973] 03350/74 Heading C3R In a process for preparing modified N,N<SP>1</SP>- substituted 2,4,5-triketoimidazolidine polymers by reacting (a) one or more oxamidic esters R-(NH-CO-CO-OR<SP>v</SP>) x , where x is 1 to 6, R is carbo- or heterocyclic and R<SP>v</SP> are various organic radicals, (b) a dito tetra-isocyanate and (c) a dito hexa-carboxylic acid (Specification 1,309,190) or a combination thereof with (d) a 3,5-dicarboxyphenyl azomethine and/or (e) a 3,5-dicarboxyphenyl azo compound or metal chelate of either thereof (see Specification 1,334,890), reactant (c) is first reacted with an excess of reactant (b) in a first stage in the presence of a solvent and a catalyst at a temperature of up to 70‹ C. to form a prepolymer with terminal isocyanate groups which is then reacted in a second stage at least partly at a temperature of 70‹ to 270‹ C. with the other reactants. Reference has been directed by the Comptroller to Specification 1,009,956.
Patent GB-123801-A (GB)
Title: Improvements in Safety Appliances for Trap Doors.
Inventor: BELL JOSEPH
IPC: E06B5/01
Filed: 1918-02-26
Abstract: 123,801. Bell, J. Feb. 26, 1918. Manhole frames and covers.-Relates to elevatable guards for protecting trap-door openings, and consists in providing special means for guiding the guard in its up and down movements. In the form shown, the hinged door 2, normally closing the opening 1, is connected by a cord 9 to a rigid counter-balanced frame 3 which is automatically raised to form a guard when the door is opened. The guides for the frame consist of runways or rails 4, Fig. 3, fixed to the sides of the opening, in or on which run short members 11 fixed to the base of the frame. The guard may be formed in two parts operated by doors hinged to opposite sides of the opening. Instead of raising the guard automatically, it may be raised by hand after the door has been opened. Reference has been directed by the Comptroller to Specification 17791/03.
Patent GB-567103-A (GB)
Title: Improvements in or relating to apparatus for use in distilling liquids, particularlysea water, particularly for ships' lifeboats and the like
IPC: C02F1/18
Filed: 1943-03-02
Abstract: 567,103. Distilling water &c. WALKER, C. BELL-, and BRITISH MOTOR BOAT MANUFACTURING CO., Ltd. March 2, 1943, No. 3439. [Class 32] Distillation apparatus, suitable for the distillation of water on lifeboats and for the recovery of solvents, of the kind in which the boiler forms a unitary structure with an internalcombustion engine and is heated by exhaust therefrom comprises in combination therewith condensing apparatus of the evaporator-condenser type having two inlet pipes, one for connection to the steam space and the second connected to the liquid space of the boiler and having two delivery pipes, one for leading condensate and the other for leading boiler liquid to a flow meter, and control means for controlling the flow of boiler feed and condensate. The plant comprises a water boiler 12 surrounding the cylinder head of an internal-combustion engine 10 and heated by exhaust gases therefrom passed through conduits immersed in the boiler and leading to a take-off 50 ; a water supply tank 14, a feed heater 22, condensers 18, 20, a water heater 30, and a flow meter 112 with pumps 16, 148, 26, 28, 24, driven off the engine for circulating the liquids. The feed water is supplied to the tank 14 and is pumped thence by pump 16 through coil 58 and line 56 to the preheater 22 supplying the boiler 12. The cooling water for the condensers is supplied from an outlet 44 at the bottom of the boiler 12, the water flowing via the pipe 102 first through condenser 84 and thence through pipe 104 to the second condenser 84, and the residual brine being pumped from the system by a pump 24 through the sight glass 114 of the flow meter. Steam formed in the condensers is taken through pipes 91, 142 to the jacket 60, while condensate formed in the jacket 60 and in the condensers 18, 20 is removed through conduits 82, 146 by pumps 28, 26, 148 to the sight feed 114. The flow of condensate and brine passed through the system can thus be compared at the flow meter 112 and the supply of brine from the tank 14 correlated therewith by controlling the pumps. Steam passes from the boiler through a dome 38 provided with a spray arrester to the condenser 84 through a pipe 40 provided with a three-way valve 92 so that part of the steam may be diverted through a pipe 138 to heat water in a pot 132 provided with a jacket 134 through which the exhaust gases are passed. A motor 154 may be driven off the shaft 152 for heating coils 72 in the feed heater 22 which may be combined with the feed tank and preheater 14.
Patent GB-1097346-A (GB)
Title: Improvements in or relating to clothes dryers
IPC: D06F58/10
Filed: 1966-01-26
Abstract: 1,097,346. Drying cabinets. DISHMASTER APPLIANCES Ltd. Jan. 26, 1966 [Jan. 27, 1965; Aug. 18, 1965], No. 3457/66. Heading F4G. A drying cabinet comprises a chamber 4 having an upper hinged lid 3, an air outlet 3a adjacent the upper end of the chamber, and an impeller 21 with its axis vertically disposed mounted below a lower guard screen 10. The impeller causes air to flow through a screened inlet 24 in the base of cabinet to pass over a heater 25 concentrically mounted about the impeller motor 17 and into the chamber 4. A clothes support frame 27 formed by four leg members and a hinged rack 28 are positioned in the base of the chamber intermediate the lid and screen. A timer unit 35 controlled by a knob 37 through a shaft 36 is also provided. The impeller comprises a dished top plate 22 having turbine blades 23 dependant from adjacent the outer periphery thereof and sufficient to create a flow of between 30 and 90 cubic feet per minute for each cubic foot of space in the chamber.
Patent GB-362754-A (GB)
Title: Improvements in or relating to the production of buoyant soaps
IPC: C11D13/02
Filed: 1931-02-03
Abstract: Buoyant soaps are made by generating hydrogen in the soap jelly, formed in the first stage of soap manufacture, and retaining the gas therein during the hardening stage.  The hydrogen may be generated by adding small amounts of powdered metals or hydrides, such as aluminium bronze, magnesium, zinc, amalgams or iodized magnesium. The substances may be added as a suspension in an ingredient of the soap.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of nitrides, borides, silicides, and carbides to generate gases in the soap.  This subject-matter does not appear in the Specification as accepted.
Patent GB-325089-A (GB)
Title: Improvements in combined amusement and automatic coincontrolled delivery apparatus
IPC: G07F17/32
Filed: 1929-02-02
Abstract: 325,089. Woods, R. S. Feb. 2, 1929. Tivoli billiards and the like.-A combined amusement and automatic coin - controlled delivery machine comprises a track with a hole near one end and also with a gap at such end, further and inclined tracks below the first named track with which the hole and gap communicate respectively, one of the further inclined tracks being central to the first named track, a platform at the front end of the upper track, and means for raising and lowering the platform to cause it to be opposite the upper and lower tracks, as required, a plunger with universal mounting and a spring, by which a playing ball resting on the platform may be propelled along the upper track in an endeavour to cause it to drop through the hole in the upper track. After the insertion of a coin the plunger of a solenoid y is withdrawn from locking engagement with the support m of the ball platform h which may then be lowered, into the position shown in dotted lines, by depressing a hand-lever p projecting through the side of the casing. A ball d resting at the foot of a track g against a depending portion h<1> of the platform then rolls on to the platform. Upon release of the hand-lever, the platform rises under spring action and brings the ball in front of a spring plunger i slidable in a ball swivel j. The operator then endeavours to project the ball up a track b and through a hole c whence it runs down a central partitioned portion e of the track g and comes to rest against a contact lever s. The contact lever closes an electrical circuit at a mercury cup q and causes an electromagnet r to release a catch from a drawer t containing a packet of chocolate &c. On pulling out the drawer a light rod v extending therefrom rocks the contact lever s and allows the ball d to roll against the depending portion h<1> of the platform. A spring t<1> returns the drawer and causes the circuit to be broken at the mercury cup q. If a projected ball passes beyond the hole c it falls into a gap f and passes down the track q to the platform flange h. Additional holes c with corresponding drawers t may be provided. The machines may have short tracks for use in shops or may have tracks several feet long for use on fair grounds. The track may be formed, in front of the hole, with a rounded shoulder as indicated by dotted lines.
Patent GB-270412-A (GB)
Title: Improvements in silencers for internal combustion engines
IPC: F01N1/08
Filed: 1926-02-08
Abstract: 270,412. Hollick, T. D. Feb. 8, 1926. Exhaustsilencers. -Sheets D of wire gauze are spaced apart by rings E, a portion of each sheet being exposed to the atmosphere or to a current of cool air supplied by a fan. The internal diameter of the silencer may be larger than the exhaust pipe to which it is secured by a bayonet joint and screws g. The sheets may be in groups separated by a short length of pipe and two units may be spaced along the exhaust pipe.
Patent GB-325979-A (GB)
Title: Improved method of and apparatus for synchronising the movements of two devices arranged at a distance from one another
IPC: H04N5/04
Filed: 1929-02-02
Abstract: 325,979. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Feb. 2, 1929. Synchronous movements.-In an electric synchronous movement an electric oscillation is set up by one device and transmitted to act synchronizingly at a receiver on a locally generated relaxation oscillation which controls another device. The synchronizing oscillations are received by an aerial 1, Fig. 1, and applied by a transformer 4 to a circuit S - - 9 for generating relaxation oscillations which are passed through an amplifier 10 to an exciting coil 11 situated close to the teeth of a magnetic disc 12 which is rigidly mounted on the shaft 13 of a television exploring disc 14 or other device to be synchronized. According to a modification, Fig. 2, the relaxation-oscillation system is also influenced by an oscillation produced by the movement of the device to be synchronized. Relaxation oscillations are set up by glow-discharge lamps 16, 17, each of which is connected in series with a resistance 20, 21 and the secondary of a transformer 18, 19; a condenser 22 is arranged between the points where the secondaries are joined and where the resistances are joined; and a resistance 24 and a battery 23 in series are connected in parallel with the condenser. Each transformer has two primary windings, one of which is influenced by the synchronizing signals from a line 25, while the other is influenced by impulses due to a contact 27 operated by the moving parts. The relaxation oscillations are amplified by valves 33, 34 and applied differentially to an electromagnetic brake 30.
Patent GB-1286853-A (GB)
Title: Distributor valve for air channels
IPC: F16K11/052
Filed: 1969-08-20
Abstract: 1286853 Valves GUSTAVSBERGS FABRIKER AB 20 Aug 1969 [23 Aug 1968] 3586/72 Divided out of 1286852 Heading F2V [Also in Division F4] A valve for distributing an air flow from a duct 21 between ducts 42, 43 comprises bearings 60 fixed to the ducts, a shaft 61 movable axially and rotatably within the bearings and having lugs 63, 64 which engage in slots or grooves 65, 66 formed in sleeves 67, 68 rotatably mounted on the shaft 61, and flaps 51, 52 fixed to the sleeves 67, 68, respectively, whereby rotation of shaft 61 produces simultaneous rotation of both flaps without rotation of the flaps relative to one another, and axial movement of the shaft 61 produces rotation of the flaps towards or away from one another.