baber/WOPTO huggingface dataset:
Patent GB-492529-A (GB)
Title: Improvements in or relating to the production of high vacua
IPC: H01J7/18
Filed: 1937-03-19
Abstract: 492,529. Discharge apparatus. ELEMET LABORATORIES CO., Inc. March 19, 1937, No. 8086. Convention date, May 8, 1936. Drawings to Specification. [Class 39 (i)] [Also in Groups XXVIII and XXII] High vacua in thermionic valves &c. are obtained by introducing therein a wire having a shell of nickel &c., and a core of volatile and reactive material such as barium; the wire is heated directly by passage of a current, or inductively, or by contact of the wire with a heated resistance wire, e.g. of molybdenum or tungsten., one of the two wires having an insulating coat.
Patent GB-1207451-A (GB)
Title: Improvements in or relating to guide tracks
Inventor: LIMITED J C ATTACHMENTS
IPC: D05B11/00
Filed: 1968-02-20
Abstract: 1,207,451. Woodworking. J. C. ATTACHMENTS Ltd. 17 Feb., 1969 [20 Feb., 1968], No. 8094/68. Heading B5L. [Also in Division D1] A guide track for a follower 28 comprises a groove 32 formed in a substantially flat member 29, and a corrugated strip 31 located at the bottom of the groove. As described, member 29 is rigid with a universally-mounted worksupport in a mattress-sewing machine, see Division D1, and follower 28 is a driven gearwheel engaging strip 31 to shift a supported mattress under the needle of the machine along a path determined by the guide track. Strip 31 may be produced by passing a metal strip between a pair of meshing gears to corrugate the strip; and may be secured in groove 32 either by adhesive or by nailing. It is stated that the guide track may have application in routing patterns in wood, plastics or other materials.
Patent GB-753255-A (GB)
Title: Improvements in or relating to magnetic or dielectric amplifiers
IPC: H03F11/00
Filed: 1954-03-19
Abstract: 753,255. Magnetic and dielectric amplifiers PHILIPS ELECTRICAL INDUSTRIES, Ltd March 19, 1954 [March 23, 1953], No. 8100/54 Class 40 (4). The impedance offered by a magnetic amplifier M, Fig. 1 (or a dielectric amplifier), to a main A.C. supply G is controlled jointly by a signal S and an auxiliary A.C. supply H, the auxiliary A.C. frequency being less than the main A.C. frequency and greater than the signal frequency. The amplifier is operated with no fixed bias so that even harmonics of the signal S do not appear in the output. Third harmonics can be reduced by adjusting the amplitude of the auxiliary A.C. The output is rectified at R and is then applied to a circuit N tuned to the frequency of the auxiliary supply. The amplified signal at U is derived by a further rectifier circuit D controlled by the auxiliary supply H and the circuit N. The auxiliary A.C. may be produced by the magnetic amplifier. The circuit of saturable reactor L, Fig. 4, includes two parallel resonance circuits L1, C1, L2, C2, tuned to frequencies f1, f2, where f1+f2 =2f, f1 is the frequency of the auxiliary A.C. and f is the frequency of the main A.C. Non- linear capacitors C, Fig. 3, may be used instead of a magnetic amplifier.
Patent GB-217661-A (GB)
Title: Improvements in and relating to confectionery coating machines
IPC: A23G3/20
Filed: 1923-03-22
Abstract: 217,661. Carsons, Ltd., and Bingham, A. March 22, 1923. Coating confectioners' goods. - In coating- machines wherein tail-eliminating rollers are placed between adjacent conveyers, the rollers are provided with small contacting surfaces formed by thin discs d<1> and corresponding grooves are formed in the cleaning-roller e, the bottom coating-material which tends to form tails thus having space to run back under the confection and reform the bottom coating. An arrangement is described wherein a bottom coating is applied to the cores on a bottoming-conveyer from which they pass, over a tail-remover, to a canvas conveyer passing over a cooling-tank, and thence to the flooding conveyer, the cores being finally delivered over another tail-remover to a delivery conveyer. In Fig. 2, the tail-removing rollers d, e are positioned between the flooding conveyer G and the delivery conveyer H, the conveyer G being guided by rollers a, a<1>, a<2>, further rollers b, c being provided at the discharge end, the roller c being rotated positively in the opposite direction to the roller b which is thereby kept clean. A slight, preferably adjustable, inclination of the commencement of the conveyer H prevents the bottom coating from becoming non-uniform while it is still plastic. A similar inclination may be provided for the cooling conveyer. The roller h<2> may be of rectilinear section, e.g. triangular, the conveyer being thus shaken which further prevents the formation of tails. The rollers d, e are geared together and rotate in opposite directions, the roller e preferably being slightly larger in diameter at the centre than at the ends and the roller d, being mounted in sliding bearings, is adjusted towards the roller e by screws. The inclination of the delivery conveyer and cooling conveyer is adjusted by a pivoted plate i, Fig. 5, which is adjusted longitudinally by screwed rods j<2>, and angularly by nuts i<6>, rod i<4> and link i'. The rollers d, e, b, c may be carried, as a unit, in the bracket k so that the device may be fitted to existing machines, and all the rollers are driven from a common source through interconnected gear wheels carried by the bracket k. The rollers a are adjustably carried on plates p having extensions p<1> which are secured to the cross shaft p<2> .
Patent GB-1210432-A (GB)
Title: Improvements in and relating to electronic circuits for temperature control
IPC: G05D23/24
Filed: 1968-02-20
Abstract: 1,210,432. 210, 432. Automatic temperature control systems. QUICKFIT & QUARTZ Ltd. AND D. OBERSBY. Feb. 11, 1969 [Feb. 20, 1968], No. 8274/68. Heading G3R. In a temperature control system utilizing a heater as a sensor, a signal is produced indicative of the reciprocal of heater current which is multiplied by signal indicative of heater voltage to produce a signal proportional to heater resistance which is compared with a reference in order to regulate heater current. A heater 1 has its current measured by a winding 5 and a Hall effect device 6 arranged as an analogue inverter, the latter preferably being connected in the feedback loop of a high gain differential amplifier 8 supplying an input winding 11 of a second Hall effect device 12 which is additionally connected across heater 1. The output from device 12 is proportional to the product of heater voltage and reciprocal of heater current. This is applied to a comparator circuit which also receives a reference signal 15, the difference being applied through an amplifier 17 to a pulse generator 7 which varies the firing point of a semi-conductor rectifier network 4 in series with the heater and mains terminals 2, 3 according to the magnitude and sign of the difference. Devices other than of the Hall type may be used in the arrangement which may be utilized to maintain a desired viscosity in molten glass flowing along a canal in the forehearth of a melting furnace, to control the temperature of pipes prior to bending or drawing, or in electro-phoresis instruments. The signal 15 represents the resistance of heater 1 at a desired temperature the value or values being derived from previous calibration, and the error signal on line 16 may be continuous or discontinuous. The heater may be a resistive path formed through a glass part which is being manipulated and/ or shaped, the electrical connection being made to either side of the part by means of flame electrodes playing on the hot glass. The resistive path may also be formed between two probe electrodes which project into a body of molten glass.
Patent GB-129754-A (GB)
Title: Improvements in or relating to Driving Mechanism for Motor Vehicles.
Inventor: ALLEN JOHN DAVID
IPC: F16D41/16
Filed: 1918-05-17
Abstract: 129,754. Allen, J. D. May 17, 1918. Free-wheel gearing. -Relates to motor-vehicle driving mechanism of the kind in which both road wheels are driven by ratchet gear for forward and reversed running. The propellar shaft 3, Fig. 1, drives a gear-wheel 5 secured to a twopart hub 7 which has peripheral slots 11, Fig. 2, into which pass projections 12 on a centrallyarranged driving-disk 9, the projections being smaller than the slots to allow relative rotation between the parts. Intermediate hubs 14 are arranged within the two-part hub and have splined sockets 15 for the ends of the road-wheel axles. The inwardly projecting flanges 16 of the intermediate hubs are formed with ratchet teeth 18, Fig. 4, adapted to be engaged by oppositely facing pawls 20, 21, for forward and reversed drive respectively. The pawls are mounted on the driving-disk 9 and are pressed outwards by springs, the set of pawls not in operation being engaged by the corresponding arms of double dogs 30 pivoted on the driving-disk and having a pin-and-slot engagement 34 with the two-part hub, and the arrangement being such that the slight relative rotation of the two-part hub and driving-disk throws one set of pawls out of gear and allows the springs of the other set to put them in gear and transmit the drive. The shape and arrangement of the pawls allows overrunning - of the pawls which are in engagement.
Patent GB-705184-A (GB)
Title: Improvements in pipe-jointing compounds
Inventor: BOOTH JOHN FREDERICK
IPC: C09J195/00
Filed: 1951-04-11
Abstract: A pipe-jointing composition consists of, in parts by weight, sulphur 3, tar 2 and inert filler 4, in which spent oxide provides the whole or part of the sulphur whilst the iron oxide content of the spent oxide provides a corresponding amount of the required inert filler. The remainder of the inert filler may be sand, limestone or ground pipe scrap.  When spent oxide provides all the sulphur, the necessary fluidity for mixing may be obtained by admixture with molten naphthalene followed by tar and further filler.
Patent GB-675285-A (GB)
Title: Improvements in and relating to inhibitors of oxidation, peroxidation, polymerisation and the like
IPC: C10L1/20
Filed: 1949-03-28
Abstract: Oxidation or polymerization of aldehydes, ethers, petroleum products, and vinyl monomers is inhibited by adding a small amount, 3 per cent or less, of at least one of the compounds tetra-iodoethylene or nitrotri-iodoethylene.  Aliphatic aldehydes such as acetaldehyde, iso- and n-butyraldehydes obtained by carbonylation of propene, and nonaldehydes obtained similarly from di-isobutene are referred to, and the inhibitory action on nonaldehyde is illustrated.ALSO:Gum formation in petroleum derivatives such as petrol, kerosene, lubricating oils, and diesel fuels is inhibited by adding a small amount (3 per cent or less) of at least one of the compounds tetra-iodoethylene or nitrotri-iodoethylene.
Patent GB-368532-A (GB)
Title: Improved metallic cover or lid for tins, boxes, and like containers
IPC: B65D43/02
Filed: 1931-03-19
Abstract: 368,532. Closures for tins, boxes, &c. BIFFI, E., 6, Via Cernaia, Milan, Italy. March 19, 1931, No. 8441. [Classes 66 and 125 (iii).] The metal cover 2 of a tin, box, or like container is formed with a tear-away ring 3<1> determined by an annular weakening channel 4 swaged on the inner face of an outwardly-projecting bead 11 which is pressed on to a similar bead formed on the body of the tin to effect the closure, the ring being divided by a cross-cut 5 into two parts one of which terminates in a perforated lug 6. A packing ring 9 is interposed between the cover and the rolled upper edge 10 of the tin.
Patent GB-1144142-A (GB)
Title: Reciprocating fuel pump, particularly for oil-fired furnaces
IPC: F04B7/04
Filed: 1966-02-25
Abstract: 1,144,142. Reciprocating pumps. W. EBERSP€CHER and H. EBERSP€CHER [trading as J. EBERSP€CHER] . Feb. 25, 1966 [March 13, 1965], No. 8487/66. Heading F1A. In an electromagnetically actuated pump the piston 3' is connected to an armature 4' and provided with grooves 3b' through which liquid flows from the inlet 1b' to an inlet chamber 6a' controlled by the piston head. The stroke of the piston is pre-set by adjusting the position of the outlet valve housing 8' which is either screwed into the housing or is slidable therein under the control of an axially acting manually actuated cam.
Patent GB-434520-A (GB)
Title: Improvements in the manufacture of fire proof nozzles for ladles
IPC: B22D41/52
Filed: 1935-03-19
Abstract: 434,520. Linings for nozzles of foundry ladles. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Vasterõs, Sweden. March 19, 1935, No. 8559. Convention date, March 23, 1934. Drawings to Specification. [Class 87 (i)] Linings for the fireclay nozzles of foundry ladles, consisting as usual of magnesite, or the oxide of magnesium, chromium, aluminium, or other earthy metal mixed in powder form with a binder such as water glass, are heated to a temperature considerably lower than the burning temperature of the material, which then sinters when the hot metal is poured. The lining may be built into the fireclay nozzle while the latter is being made, and the whole then burnt together. Substances which lower the fusing point of the lining, such as quartz, fluor spar, or alkalies may be added to the magnesite &c. so that the bore of the lining increases by wear and compensates for the reduced head of molten metal during pouring.
Patent GB-970612-A (GB)
Title: Process and apparatus for the distillation,carbonisation and incineration of waste matter
IPC: F23G5/027
Filed: 1962-03-06
Abstract: 970,612. Incinerators. F. A. M. FABRY. March 6, 1962 [March 6, 1961], No. 8613/62. Heading F4B. Refuse is burnt in containers open only at the top, which may be the bins in which it was collected, and the gases given off are mixed with air heated so that the air/gas mixture burns. In one embodiment, Fig. 1, a container 7 with a loading door 8 is fixed in a double-walled incinerator above a combustion chamber 1 which may have a burner 2 or burn solid fuel. Air is heated in the jacket 6 so that the air gas mixture produced at the entry to a secondary combustion chamber 10 is above its self-ignition temperature. A fan 12 in the flue outlet produces a partial vacuum in the incinerator and prevents fumes escaping. In a modification, Fig. 2 (not shown), refuse is burnt in bins, which are removed when combustion is complete and re-used. In another embodiment, Figs. 3a, 3b, an L-shaped container 7 has one limb sloping upwardly to the loading door with a connection to the secondary combustion chamber 10, while the other limb has a raking door 21 and an ash outlet 18. The fan 12 is mounted so as to recirculate combustion gases round the loading limb 22 so that incoming refuse is dried. This embodiment can operate continuously.
Patent GB-828040-A (GB)
IPC: B22D19/08
Filed: 1958-03-18
Abstract: 828,040. Casting composite articles. GENERAL MOTORS CORPORATION. March 18, 1958 [March 19, 1957], No. 8651/58. Class 83 (1). A mould assembly for casting a lining, e.g. a bearing lining, on a cylindrical backing member 12, Fig. 1, comprises an inverted cup-member 11 within the backing member to form an annular casting cavity, and a centrally apertured metallic-cover 18 fitted over and spaced from said cup. A pouring basin 24 reduces turbulence, and runner grooves may extend therefrom to the casting cavity, Fig. 8 (not shown). An assembly for successively casting inner and outer linings on a backing member 33, Fig. 4, comprises an outer cylindrical member 40 and a second cover 42 supported thereby. In a modification, Fig. 9, the outer casting-cavity is fed from the central aperture through slots 74. Inner and outer linings are simultaneously cast on to a backing, Fig. 12, by perforating the backing at 86. The backings are degreased and descaled, the mould assembled, and the assembly heated to a temperature of 2000‹ F. in a protective atmosphere. After pouring, the assembly is quenched, the mould parts removed, and the bearing finished.
Patent GB-1271202-A (GB)
Title: 4-phenylazo-1-naphthol compounds and their use as couplers in colour photographic emulsions
IPC: G03C7/333
Filed: 1970-02-23
Abstract: 1,271,202. Coloured hydroxynaphthanide colour couplers in silver halide emulsions. KONISHIROKU PHOTO INDUSTRY CO. Ltd. Feb.23, 1970 [Feb.24, 1969], No.8662/70. Heading G2C. [Also in Divisions C4-5] Light-sensitive silver halide photographic emulsions containing as a coloured cyan coupler, a compound of formula wherein R is a C 1-4  alkyl or alkoxy group or a phenoxy, substituted phenoxy, aralkoxy or substituted aralkoxy group (see Division C4-5), are described. In Examples the colour couplers are incorporated into silver halide emulsions, coated on to a film support, the film exposed to red light and developed to give cyan negative and orange or red positive images.
Patent GB-740225-A (GB)
Title: Improvements in pressure control valves
IPC: F16K31/40
Filed: 1954-03-25
Abstract: 740,225. Fluid-actuated valves. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. March 25, 1954 [March 31, 1953], No. 8708/54. Class 135. A pressure regulator comprises a differential piston 5 which acts as a shuttle valve controlling a passageway from the pressure inlet 2 to the working line 4 and from the latter to the exhaust 3. The inlet communicates through a passage 13 and restriction 14 in the piston with a chamber 15 into which the upper end of the piston projects, so that the inlet pressure acts on the piston against the loading spring 6. The pressure in the working line 4 also influences the piston as it acts on the differential area D2-D1. The pressure in chamber 15 is limited by a ball relief valve 16 which is pressed on to its seat by an electromagnet 20. Springs 21, 22 counterbalance the weight of the armature and the rod that presses the ball downwards.
Patent GB-526546-A (GB)
Title: Improvements in and relating to greetings cards
IPC: B42D15/04
Filed: 1939-03-20
Abstract: 526,546. Envelopes; pictures.' PODMORE, A. March 20, 1939, No. 8791. Addition to 498,716. [Classes 11 and 146 (ii)] Greeting cards, such as Christmas cards, have a number of attached or integral picture sections which lie flat for storage or transit but form a composite picture when moved into spaced planes parallel to the plane of the card. The card consists of a rear panel, two end panels, and a cover panel 5 - 8. Cut-out panels 9, 10 form the intermediate and forward parts of the picture. Panel 7 has a part 7b bent into space panels 5, 10. Gummed flaps 12, 13 secure the parts when erected.
Patent GB-479109-A (GB)
Title: Improvements in water heaters
IPC: F24H9/20
Filed: 1937-03-25
Abstract: 479,109. Thermostats. NORMAN, F. A., and NEW GEYSERS (1931), Ltd. March 25, 1937, No. 8877/36. [Class 135] The gas supply to the burner 1 of a water heater is controlled by a valve 4 actuated by a bi-metallic loop 5 subject to the heat of a control jet 9, The supply of gas to this jet is controlled by a valve 12 actuated by a thermal element 13 inserted in the water container. A permanently burning pilot flame 6 is adapted to ignite both the control burner and the main burner.
Patent GB-231885-A (GB)
IPC: C09B35/04
Filed: 1925-04-03
Abstract: Disazo dyes are produced by coupling diazotized m-aminobenzene-azo-salicylic acid or homologues or derivatives thereof with 1-acidylamino8-naphtholsulphonic acids; they are especially useful for printing red shades on cotton with chromium acetate.  The m-aminobenzene-azosalicylic acids are produced by coupling diazotized m-nitranilines or acidyl-m-phenylenediamines with salicylic acids and reducing or saponifying.  Components specified are m-phenylene-and m-toluylene-diamines and their sulphonic acids, salicylic and cresotinic acids, salicylic sulphonic acid, 1-acetylamino-8-naphthol-4-sulphonic acid and -4 : 6-disulphonic acid, 1-acetyl- or -benzoyl-amino-8-naphthol-3 : 6-disulphonic acid. The following examples are given:-(1) diazotized m-aminobenzene-azo-salicylic acid is coupled with 1-acetylamino-8-naphthol-4 : 6- or -3 : 6-disulphonic acid; (2) diazotized oxalyl-2 : 4-toluylenediamine-5-sulphonic acid is coupled with salicylic acid and the monoazo dye saponified, rediazotized, and coupled with 1-acetylamino-8-naphthol-3 : 6-disulphonic acid: the reduction of the dyestuffs with zinc and hydrochloric acid is also mentioned.
Patent GB-1499795-A (GB)
Title: Electrical current supply installations
IPC: H01R13/73
Filed: 1974-02-27
Abstract: 1499795 Two part couplings ROTAFLEX (GREAT BRITAIN) Ltd 25 Feb 1975 [27 Feb 1974] 8986/74 Heading H2E A plug and adaptor assembly 1, 10 for connection of an appliance e.g. a lamp to a power distribution track 21 comprises plug 1 for supporting the appliance and adaptor 10 for engagement with the track, parts 1 and 10 being engageable together. A projection 20 on a resilient arm 19 of the adaptor locks in recess 20A of the plug to hold the two parts 1, 10 together and the assembled unit is slidable in the track 21  as shown in Fig. 6 and may be secured in place and the contacts 12 deployed by movement of a handle 121.
Patent GB-204349-A (GB)
Title: Improvements in machines for disintegrating and emulsifying materials
IPC: B02C13/22
Filed: 1922-03-29
Abstract: 204,349. Povey, H., and Hallas, H. O. March 29, 1922. Emulsions, making.-Relates to machines for disintegrating solid material in the presence of a liquid, wherein the material is fed in an axial direction to rotary disintegrating members, and consists in the provision of a pair of relativelymovable members with intermeshing blades, the opposing axial streams impinging between these members, passing outwardly through the intermeshing blades, and finally being discharged through a narrow annular duct. In the form shown, material is supplied, by gravity feed, through a pipe 45, to two chambers 46, 47 from which it passes inwardly by axial channels 37, 38 in the conical oppositelyrotating members 3, 4. These members are formed with coacting annularly-disposed blades having small end and radial clearance, and the material is disintegrated, emulsified, or mixed while passing outwards under the action of the gravity feed and centrifugal force, finally passing through a narrow gap between circumferential flanges 21, 22 on the rotating members to a collecting chamber 44 provided with a discharge outlet 50. Packing rings 39, 40, 42 are used to prevent leakage from the central casing and loose rings 43 in packing glands 41 on the inner shaft bearings 8, 9 prevent the ingress of oil from these bearings. Longitudinal adjustment of the shafts 5, 6 is provided by screwed collars 13, 14, 18, 19 which bear against the faces of sleeves in the outer bearings 7, 10. In a modification one rotating member with vanes coacting with fixed vanes on the casing may be employed. As an example, in a machine treating milk powder and water, a speed of 3,800 revs. per min. is stated to be used with rotating members 6¢ in. in diameter. Specification 16276/88, [Class 59, Grinding, crushing, &c.], is referred to.