baber/WOPTO huggingface dataset:
Patent GB-925259-A (GB)
Title: Improvements in or relating to light elements for sanctuary lamps
Inventor: WIDDOWSON BERNARD FRANCIS FORE
IPC: C11C5/02
Filed: 1961-02-27
Abstract: A sanctuary lamp light element comprises a cylindrical transparent or translucent synthetic thermoplastic container 3 adapted to be removably fitted into a sanctuary lamp glass 1, the container being filled with paraffin wax 4 <PICT:0925259/III/1> having M.P. 100-114 DEG F. and preferably being coloured yellow with an aniline wax dye so as to simulate rape oil, and the wick 5, which is stiffened with beeswax, being mounted axially and held in position during the charging with molten paraffin wax by plate 6 and bracket 11.  When the wax has solidified the wick is trimmed and container 3 fitted with a cowl 12 which ensures even melting of the wax.  The amount of wax contained is preferably such that the lamp will burn steadily for about 8 days.
Patent GB-1365859-A (GB)
Title: Sealed primary battery
IPC: H01M6/20
Filed: 1973-02-14
Abstract: 1365859 Sodium-halogen primary cells GENERAL ELECTRIC CO 14 Feb 1973 [22 Feb 1972] 7232/73 Heading H1B A sealed sodium-halogen primary cell has a solid separator 11 made of a material, such as sodium-#-alumina, which conducts sodium ions. In the cell shown the glass housing is in two parts 22, 24 but in the cell of Fig. 1 (not shown) the glass housing is one-piece and its midsection is pinched-in and bonded to the separator 11 using a glass sealing washer (15). Each compartment of the housing contains an electronic conductor 26 or 27 to make contact to the anode or cathode material; the tantalum conductor is either sealed directly through the glass housing or via a metallic tube 28 of tantalum, molybdenum, or niobium. A seal using a molybdenum tube joined to the glass and a niobium tube welded to the molybdenum tube and to the conductor is suggested. The anode material is metallic sodium, a sodium amalgam containing between 35 and 95 wt. per cent sodium, or a solution of sodium in a non- aqueous organic electrolyte; such an electrolyte may be a solution of a sodium halide in propylene carbonate. The cathode material is a combination of a conductive material with either bromine or a mixture of bromine and iodine containing between 5 and 60 wt. per cent of iodine. The conductive material may be a matrix of carbon felt or of foamed metal or an aqueous solution or non-aqueous organic (propylene carbonate) solution of sodium chloride, sodium bromide, potassium chloride, aluminium chloride, aluminium bromide, or phosphorus oxychloride. More than one conductive material may be used.
Patent GB-465980-A (GB)
Title: Improvements in or relating to heat insulation
IPC: F25D23/06
Filed: 1936-03-10
Abstract: 465,980. Nonconducting coverings for heat; refrigerators. AKTIEBOLAGET TERMISK ISOLATION. March 10, 1936, No. 7244. Convention date, March 13, 1935. [Classes 29 and 64 (ii)] In a refrigerator cabinet comprising inner and outer walls 3, 2, with the intervening space subdivided into air layers by nested containers 4 having bright surfaces, such as corrugated cardboard faced on both sides with plane cardboard and coated with foil such as aluminium, all the containers except the outermost, which is airtight, are provided both at top and bottom with apertures 12, 13 to ensure a closed regulated air circulation through each air layer between the inner wall and outermost container. The inner wall of the cabinet is provided with a similar aperture 11 and with additional apertures 10 at its lower part, a heavy air column in the cooling chamber thus tending to flow into the air layers of the insulation through the latter. The air returning to the cooling chamber through the top apertures enables absorbed moisture to be precipitated therein. In a modification of the invention both the inner and outer walls 3, 2, Fig. 3, are airtight and a condenser 16, comprising headers with vertical pipes disposed between the cooling flanges of the evaporator 7, communicates by conduits 19 and 23 with the innermost air layer and removes any moisture absorbed by the circulating air, the condensate draining from the lowermost header to a drip pan 20. The condenser 16 may be replaced by a single ovalsectioned tube. The inner surfaces of the inner and outer walls of the cabinet may also be coated with metal foil.
Patent GB-439736-A (GB)
Title: Improvements in or relating to electric ship propulsion systems
IPC: H02H7/085
Filed: 1934-03-07
Abstract: 439,736. System for transmitting mechanical power. GENERAL ELECTRIC CO., Ltd., ELLIS, G., and SAUNDERS, C. W., Magnet House, Kingsway, London. March 7, 1934, No. 7266. Divided out of 435,181. [Class 38 (iv)] In an electric transmission system, in which the fluid supply to the prime mover is subject to an overriding limiting control responsive to excessive current or power in the circuit connecting the generator and motor, the control is rendered inoperative or its setting is raised during starting and while synchronization is taking place. A turbine 1 drives a three-phase generator 2 connected to a motor 3, the fields 9 and 10 of the generator and motor being supplied from the mains 12, 13. The controilers 8, 11 for the main transmission circuit and the fields are operated in unison. A valve 17 additional to the main steam valve is operated by a reversible motor 18 by current from the mains 12, 13, through a relay comprising switches 20, 21, 22, 23 operated by a winding 24 responsive to the current transformer 28. The relay operating circuit is only effective when switch 29 has been closed as a result of synchronism between the generator and motor. A dashpot 25 gives a time delay action. The relay may be controlled by a wattmeter. The setting of the relay may be automatically adjusted when a generator or motor is disconnected as in the multiple generator and motor systems described in Specification 352,615.
Patent GB-577121-A (GB)
Title: Improvements in centrifugal cut-out devices or governors
IPC: F01D21/16
Filed: 1944-04-20
Abstract: 577,121. Interrupters; centrifugal switches. WARSOP PETROL DRILL & TOOLS, Ltd., and WARSOP, N. W. April 20, 1944, No. 7349. [Class 38 (v)] [Also in Group XXVI] A device for cutting the ignition circuit of an internal combustion engine out at excessive speeds, e.g., for petrol drills, comprises a spring-pressed segmental cam c on a rotating member which is cut away in the zone of the cam so as to allow closure of the circuit at normal speeds when an arm f bears on this part, while at higher speeds the cam is thrown out against pressure of a spring e and holds the circuit permanently open by engaging the arm. The spring pressure is adjusted by a screwed rod having a conical end q engaged by a button on the end of the spring, which button partially locks the rod by engaging a shallow groove or flat cut in the conical end of the rod and extending into the cylindrical part.
Patent GB-774798-A (GB)
Title: Improvements in or relating to the manufacture of shell moulds for casting metal
IPC: B22C23/00
Filed: 1954-03-12
Abstract: 774,798. Moulding-processes. DIETERT CO., H. W. March 12, 1954 [March 30, 1953], No. 7356/54. Class 83 (1). Shell-moulds are made by forcing a mixture of sand and a binder to fill the space between two separable container-parts, of which one is a cold pattern supported in a cold mould-box and the other is a cold dry plate having a form generally conforming to that of the pattern and so positioned relative to said pattern as to provide a free space corresponding to the mouldsection to be formed. The moulding-mixture is blown from a container 16 into the space defined by a pattern 34, a mould-box 28, and a dryer-plate 12 mounted on a base-plate 10 and located thereon by pins 14. The box 28 is bolted to a blow-plate 18. Pins 42 in the plate 12 have machined surfaces which provide smooth locating surfaces on the exterior of the mould, or surfaces 44 of the plate may be machined. The shells are formed with flanges 54, 56. After blowing, the base-plate 10 is lowered and the shell on the dryer-plate 12 transferred to a baking oven. In a modification the dryerplate is permanently connected to the blowplate and the shell is supported on the pattern during baking, or alternatively the assembly of mould-box, pattern, dryer-plate and shell, is removed from the blower, and the shell baked, while held between the pattern and the dryerplate, e.g. in a coke, coal, oil, gas, infra-red radiation or H.F. oven. The mould-mix may be rammed or jolted. Clamping and guiding moulds.-The mouldhalves 50, 52 are supported in a structure comprising a frame 60, plate 62, a movable clamping-plate 72 and mould-flange engaging members 76. The smooth locating surfaces or the exterior of the mould are engaged by heads 66 of bolts 64. Alternatively if the exterior of the mould is accurately finished by the use of a machined dryer-plate, the mould is engaged by plates 70. Mould materials.-The binder may be a coreoil of a drying type, with or without water, mixed with cereal-and-water to provide additional green strength, or employed with an oxygen-releasing agent such as ammonium nitrate or potassium perchlorate. The oil may be a copolymer fast-drying mineral oil which is largely or completely pre-oxidized. In an example a vegetable-oil such as linseed oil includes 2-10 per cent by volume japan dryer. The oil is not more than 2 per cent by weight of the mix. Thermal-setting resins such as urea- or phenol-formaldehyde resins, usually ¢-1¢ per cent by weight, may be used instead of oil.
Patent GB-416091-A (GB)
Title: Improvements in and relating to power installations
IPC: F01K7/22
Filed: 1933-03-10
Abstract: 416,091. Steam power plant. PARSONS MARINE STEAM TURBINE CO., Ltd., and COOK, S. S., Turbinia Works, Wallsend-on-Tyne. March 10, 1933, No. 7363. [Class 110 (iii).] In a plant including high-pressure and low-pressure units in which the steam is initially superheated, and is reheated between stages, the desuperheater which is used when the high-pressure unit is put out of action, as in the case of manoeuvring ships, is brought into operation automatically upon the H.P. unit being cut out. The invention is described as applied to a plant comprising boilers 2<a>, 2<b>, superheaters 4<a>, 4b, interstage reheaters 15, 16, a high-pressure turbine 11, intermediate pressure turbines 19, 22, and a low-pressure turbine 21, all turbines being geared to the propeller shaft 24. During normal running the path of the steam from the superheaters is by pipes 7, 10 to the H.P. turbine 11, pipe 12 leading to the reheaters, andpipe 17 leading to the lower pressure stages. A byepass 25 is provided between the H.P. steam pipe 7 and the pipe 12 and in it is arranged an automatic reducing valve 26, and a desuperheater 27. When the H.P. turbine 11 is put out of action by closing the valve 9, the valve 26 opens in consequence of the drop in pressure in the pipe 12, and boiler steam is passed through the desuperheater 27 to the reheaters and thence to the lower pressure units. The H.P. turbine may be isolated by a valve 28. Valves 18, 33 are provided for the control of the lower and astern stages, and blanking-off flanges or valves may be provided for use in emergency. Steam for auxiliaries may be drawn from the pipe 12 at a point 37, or at a point 38 beyond the reheaters through a further desuperheater 39. Feed water may be used for desuperheating.
Patent GB-891971-A (GB)
Title: Improvements in or relating to the hydrogenation of coal
IPC: C10G1/06
Filed: 1959-03-03
Abstract: In the hydrogenation of coal to distillable hydrocarbon liquids and hydrocarbon gases by reaction of dry pulverized coal with hydrogen in which the coal is suspended at above 500 p.s.i.g., the total time at temperatures above 300 DEG C. is kept below five minutes.  Preferably the reaction temperature is 600-1000 DEG C. and the pressure 500-6,000 p.s.i.g. and the coal and hydrogen are heated from atmospheric to reaction temperature in less than five minutes, reacted for less than two minutes and reaction products and excess hydrogen are held at reaction temperature for less than 30 seconds. A catalyst may be added if desired.  The amount of hydrogen used is less than normal and the ratio of added hydrogen to coal may be between those theoretically required to form benzene and methane. Gaseous products containing hydrogen and methane may be treated with steam to form more hydrogen which can be recycled.
Patent GB-1205533-A (GB)
Title: A rotary printing press cylinder for mounting flexible printing plates
IPC: B41F27/12
Filed: 1969-02-11
Abstract: 1,205,533. Printing apparatus. SCHNELLPRESSENFABRIK KOENIG & BAUER A.G. 11 Feb., 1969 [15 Feb., 1968], No. 7402/69. Heading B6C. Flexible printing plates 2, 4 have crimped ends and are held and tensioned on plate cylinder 1 by jaws 21, 22, 41, 42, which engage the crimped ends and press them against resilient members 23, 24, 43, 44. The resilient members are backed by bars 25, 45, integral with cylinder 1, and jaws, bars and resilient members all extend parallel to the axis of cylinder 1. Preferably half the jaws are spring-loaded and the others screw-adjusted, in each case by way of levers. The resilient members 23, 24, 43, 44 may be cylindrical.
Patent GB-129396-A (GB)
Title: Improvements in Cartridge Belts for Machine Guns.
Inventor: FRENCH GEORGE FREDERICK
IPC: F42B39/08
Filed: 1918-05-03
Abstract: 129,396. French, G. F. May 3, 1918. Cartridge belts of the kind wherein two strips of fabric strengthened at their edges by wovenin cords are united together at equal intervals by weaving to form pockets shaped to fit the cartridges, are made in the manner described below. Fig. 4 shows two separate plies of material, one formed of warps a and wefts b and the other of warps c and wefts d, united at intervals bv additional warps c. to form cartridge pockets. Two, four, or more shafts are provided in the loom for the ordinary warps, and further sets of two or more shafts (or lingoes) for the binding- threads, these latter being controlled by a jacquard. The pockets, Fig. 6, are shaped to suit the cartridges, and cords f, Fig. 3, or extra warps are inserted at or near one or both edges of the belt to form ridges for the engagement of the belt-feed mechanism. Stretching may be prevented by weaving the belt between the pockets with mercerized binding-warps or with extra wefts. One strip may be woven narrower than the other, Fig. 5, to facilitate insertion of the cartridges. The end portions of the belt are made plain, or the pockets are stitched down. One of the Provisional Specifications also describes a belt in which the edges are unconnected, so that the points of the cartridges enter easily.
Patent GB-1195341-A (GB)
Title: A Telephone System
IPC: H04Q5/00
Filed: 1968-02-15
Abstract: 1,195,341. Automatic exchange systems. SUPERIOR CONTINENTAL CORP. 15 Feb., 1968 [2 Aug., 1967], No. 7469/68. Addition to 1,185,678. Heading H4K. [Also in Division H2] The Specification describes two separate improvements in the invention claimed in the parent Application. In one improvement each additional subscriber equipment is adapted to use a conventional A.C. bell ringer while in the other improvement the battery is connected to the line pair so that the direction of the D.C. charging current in the line pair is irrelevant. The parent describes a telephone system in which line pairs leading to ordinary subscriber sets may be additionally used by added subscriber sets employing a carrier frequency and driven by local batteries charged from the exchange. The added sets employ D.C. bell ringers switched on by a transistor circuit on the reception of a carrier frequency. In one improvement (Fig. 5) this transistor circuit 234 switches on an oscillator 418 which generates an alternating (20-oycle) ringing voltage suitable for a conventional A.C. ringer. The oscillator is switched on by a positive potential on a line 236. The potential is divided by a resistor 430 and a diode 428, and biases both of a pair of transistors 424 and 426 towards conduction. One transistor commences to conduct first inducing a current in one half of a centre-tapped primary winding 420 of a saturable transformer. While the transformer is saturating currents induced in each half of a further centre-tapped winding 422 control the bases of the transistors to turn the conducting transistor hard on and switch the other off. When the transformer saturates the current in the winding 420 reduces and the currents in the winding 422 reverse causing the conducting transistor to switch off and vice versa. This periodic reversal (at a frequency determined by the magnetic time constants of the transformer) induce the required alternating current in the secondary winding 440 leading to an A.C. ringer 238a. In one form of the other improvement the battery is connected to the line pair via a full-wave rectifier with a by-pass capacitor for carrier frequency across each end. In another form (Fig. 3) a full-wave rectifier 355 and a carrier frequency by-pass capacitor 392 are connected to the line pair 112 and the output of the rectifier enables a modified Hartley oscillator comprising a transistor 360, an LC circuit comprising a first portion of a primary winding 364 of a transformer 362, and a feedback path comprising the remainder of this winding and an RC network 374, 376. The output of the oscillator as picked up in the secondary winding of the transformer, is again full wave rectified by diodes 380, 382 and a capacitor 386 to give the charging current.
Patent GB-549980-A (GB)
Title: Improvements in rotary electric switches
IPC: H01H19/64
Filed: 1941-06-13
Abstract: 549,980. Mounting rotors on spindles. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., COCKERELL, C. S., and SEYMOUR. D. C. June 13, 1941, No. 7524. [Class 80 (ii)] [Also in Group XXXVII] A switch rotor B is turned by a spindle F, the flattened part of which passes through and turns an intermedithe member C which is carried in an aperture in the rotor. The spindle has lateral play in one direction in its slot and the intermediate member has lateral play in the rotor aperture in another direction, for example at right angles as shown. In this way, especially if there are more than one rotor operated by the shaft, accurate centring is rendered unnecessary.
Patent GB-563835-A (GB)
Title: Improvements in and relating to means for preventing bouncing of electric switch contacts
IPC: H01H50/64
Filed: 1943-05-12
Abstract: 563,835. Electromagnetic switches. BRITISH THOMSON-HOUSTON CO., Ltd. May 12, 1943, No. 7538. Convention date, May 16, 1942. [Class 38 (v)] In an electromagnetic contactor or other switch having a spring-biassed contact 17 adapted to engage a contact 30, bouncing of contacts is prevented by pivoting the contact 17 at 20 to a link 16 which is itself pivoted at 18 to the armature or other support 11, and suitably arranging the line of action of the biassing spring 27. The link 16 has a small limited movement between ears 23 fixed to the armature 11. When the armature is attracted to the magnet 12 and the contacts 17, 30 engage, the contact 17 will move in a clockwise direction about its pivot 20 and in addition the pivot 20 and the link 16 will move to its right-hand position relative to the armature owing to the line of action of the spring 27 being to the right of the point of engagement of the contacts. When the armature has completed its movement, the clockwise momentum of the contact 17 will be absorbed by the link itself moving temporarily to its left position, the contact 17 rolling on the contact 30.
Patent GB-100994-A (GB)
Title: Improvements in or relating to Separators for Secondary Batteries.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: H01M50/463
Filed: 1916-05-27
Abstract: 100,994. Jackson, W. J. Mellersh-, (India Rubber Co.). May 27, 1916. Separators for storage batteries consist of perforated sheets 4 of insulating-material provided with longitudinal ribs 5, 6 and having thickened unperforated tapering edges 7 for strengthening purposes, as shown in section in Fig. 3.
Patent GB-470116-A (GB)
Title: Improvements in the manufacture and production of n-vinyl compounds
IPC: C07D209/86
Filed: 1936-03-16
Abstract: N-Vinyl compounds are manufactured by leading vapours of pyrrole or substances containing the pyrrole ring in admixture with acetylene over solid catalysts having a strongly alkaline reaction, e.g. the oxides, hydroxides, cyanides and alcoholates of the alkali metals or the alkali compounds of the pyrrole compounds themselves.  The catalysts may be precipitated on carriers, e.g. active carbon, calcium oxide or calcium hydroxide, and may be used in conjunction with mercury, zinc or cadmium compounds.  The reaction may be carried out at 200--350 DEG  C., advantageously at 250--275 DEG  C., at atmospheric, reduced or increased pressure.  The acetylene may be diluted with an inert gas, e.g. nitrogen.  In examples: (1) pyrrole vapour and acetylene are led at 265 DEG  C. over soda lime to produce N-vinylpyrrole; (2) carbazole is sublimed from a vaporizer at 250--270 DEG  C. into a tube filled with soda lime under 20--25 mm. pressure while acetylene is passed through the apparatus at the same time, yielding N-vinylcarbazole; (3) acetylene and indole are passed at 300 DEG  C. under an excess pressure of 30--50 cm. over iron rings which have been wetted with aqueous caustic potash and dried, producing N-vinylindole; (4) carbazole vapour and acetylene, diluted with cyclohexane vapour or the vapour of other organic compounds stable under the reaction conditions, e.g. ethane, propane, butane, methanol, dimethyl ether, benzene or decahydronaphthalene, are passed at 275 DEG  C. over soda lime, yielding N-vinylcarbazole.
Patent GB-284496-A (GB)
Title: Improvements in or relating to sliding current collectors for electric vehicles
IPC: B60L5/20
Filed: 1927-03-26
Abstract: 284,496. Fischer de T¾var¾s, J. March 26, 1927. Bow and skate collectors.-Sliding collectors a with wide contact surface of sheet iron, steel or aluminium are provided with copper-brass ledges c forming part of the contact surface. The ledges c may conform in shape to the edges b and be riveted or welded thereto, or the ledge may rest on a projecting edge. The ledge may be lapwelded, soldered or brazed to the contact sheet, or may be butt-welded thereto. With a triangularsection collector, the ledges may be welded or sprayed on the angles of the collector.
Patent GB-706286-A (GB)
Title: Improvements relating to means for anchoring a road vehicle
Inventor: ROSSLER HEINRICH
IPC: B60B39/12
Filed: 1952-04-02
Abstract: 706,286. Anchoring means for vehicles. DAIMLER-BENZ AKT.-GES. April 2, 1952, No. 8391/52. Class 103(1) A means for anchoring a road vehicle is distinguished by a flexible support secured to one end of the vehicle and adapted for insertion beneath a road wheel in the direction in which such a wheel tends to advance. The flexible support comprises a series of inter-linked rigid elements 3; one edge of each element being bent over at 5 to serve as a claw for engagement with the ground 6. The series of plate-like elements 3 serves as a support on to which a wheel 2 of the vehicle 1 is run, side abutments 9 engaging with the respective side edges of the rim on tyre, and a chain or cable 7 serves to suspend the flexible support from the underframe, tow bar 8 or winch of the vehicle.