baber/WOPTO huggingface dataset:
Patent GB-669842-A (GB)
Title: Improvements in or relating to high frequency electric heating apparatus
IPC: H05B6/36
Filed: 1949-02-22
Abstract: 669,842. Induction heating. GENERAL ELECTRIC CO., Ltd., and CURTIS, P. B. Feb. 22, 1950 [Feb. 22, 1949]. No. 4838/49. Class 39(iii). An H.F. induction heater comprising a winding 10 and a work coil 13 (together forming a conventional concentrator) has a variable reactance in series (see Fig. 2, not shown) or parallel with the winding 10 to vary the loading, the variation being effected discontinuously to predetermined values by means of one or more tappings, if desired, while current is flowing in the work loop. In the embodiment described, the reactance is inductive and comprises two parallel conductors 14, which are bridged by a solenoid-controlled member 15, and the member 15 may be operated by any suitable means, e.g. mechanically.
Patent GB-1494071-A (GB)
Title: Gardening and like tools
IPC: B21K19/00
Filed: 1975-02-05
Abstract: 1494071 Making gardening and like tools DOBSON PARK CONSUMER PRODUCTS Ltd 5 Feb 1975 4855/75 Heading B3A A method of making a socketed gardening or like tool, e.g. a spade or fork, comprises first fitting over a spigot portion c extending from a metal blade blank a a tubular socket member b and then forging to shape the blank to a blade or prongs, the forging extending to a region of overlapping interfitment between the socket member and the spigot portion. The socket member b has one end cold swaged to a frustoconical section d and it is welded to the blank. Finally the blank a is forged to shape and the working of the metal at the junction of the blank and socket forms a homogeneous structure with the grain flow in the direction of greatest stress under working conditions. Alternatively the blank and socket member may be pressure welded together during the forging operation.
Patent GB-252252-A (GB)
Title: Improvements in or relating to lasts and means for positioning them in shoe machines
IPC: A43D23/02
Filed: 1925-02-21
Abstract: 252,252. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). Feb. 21, 1925. Addition to 230,433. Connecting uppers to insoles.-Relates to the positioning of lasts in shoe-making machines by the co-operation of positioning means formed on the last bottom with positioning devices on the machine, as described in the parent Specification;. and consists in (1) the provision of a plurality of these complementary positioning means, and (2) the interposition, between these complementary positioning devices, of an insole clamping or other device portable with the last. Preferably the last is provided with three holes 242, Fig. 4, bored with the aid of gauges 246 so that the holes are standardized both as to position and depth. The foremost hole is preferably the same distance from the toe end of the last in all sizes. of lasts, but the rear holes are farther apart for wider lasts, being just within the lip or rib of the insole. Bushes 240, Fig. 2, are driven into these holes and co-operate with pins 248 carried by an arm fixed in the machine. In a modification, the arm 224, Fig. 6, fixed in the machine is provided with a socket for engagement with a pin 220 on a spring metal insole clamp 202, the pin 220 being concentric with a. pin 204 engaging holes in the insole and last as described in the parent Specification. A second spring clamp 212, having a pin 214, may be used at the heel end of the insole.
Patent GB-483873-A (GB)
Title: Improvements in overflow pipe systems for ships' tanks
IPC: B63B3/14
Filed: 1937-02-18
Abstract: 483,873. Ship tanks. WEIR, Ltd., G. & J., and SIM, J. Feb. 18, 1937, No. 4869. [Class 113 (ii)] Tanks situated port and starboard respectively and connected by a levelling pipe E are each provided with an overflow F, J which is extended beyond the centre line of the ship, thus preventing spillage during heeling or rolling. The overflows discharge into funnels G, K, connected to the reserve tanks C, D.
Patent GB-1219441-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G47/51
Filed: 1968-01-31
Abstract: 1,219,441. Endless conveyers; shoots. SCHWEIZERISCHE INDUSTRIE-GES. 31 Jan., 1968 [17 Feb., 1967], No. 4923/68. Headings B8A and B8S. In the event of a stoppage in a packaging machine 11, biscuits which are normally fed from a conveyer 1 down a shoot 3 to a conveyer 4 and thence to a shoot 5 and conveyer belts 9, 10, are diverted by a switch 15 for delivery to a storage belt 12 moving in the direction V. On restarting the machine 11 the belt 12 is reversed after a suitable delay, to allow clearance of the conveyer belt 16, and feeds the biscuits to a helical shoot 18 for delivery to the marginal edges of the shoot 5 and thence to the machine 11. The reverse speed of the belt 12 is 10% of the forward speed to prevent undue overloading of the feeding system. A device 6 aligns and counts the biscuits prior to their delivery to the machine 11.
Patent GB-348584-A (GB)
Title: Improvements in or relating to electric motors
IPC: H02K33/02
Filed: 1930-02-13
Abstract: 348,584. Changing signs. OLLERENSHAW, R. E., 81, Blackfriars Road, London. Feb. 13, 1930, No. 4930. [Class 3 (i).] In a reciprocating or oscillating armature electric motor for operating an animated sign of the type comprising a thermal switch for energizing and de-energizing the magnet, the impulses are transmitted to a member having substantial inertia which is maintained in unvarying cyclic motion. As shown in connection with an illuminated sign, Figs. 1 and 2, a cylindrical casing 10 has at each end a circular glass sheet 11 having a transparent border 12 and an opaque centre 13 which may have advertising matter at 14, 15. Four electric lamps 16 or two circumferential series of lamps 161 are provided in the casing. A rotatable annulus 17 is mounted adjacent each transparent border and these annuli constitute the inertia member. They are perforated at 18 and the apertures are covered with translucent material which may be of different colours. The two annuli rotate about the spindle 20 of an oscillating armature motor and are driven through free-wheel mechanism. With the embodiment having four lamps 16, rotation of the annuli produces the effect of a number of rotating points of light, whereas in the alternative construction the lamps 161 are alternately masked and exposed so producing the effect of a series of intermittent coloured lights running round the border 12. In a modification, the sign faces are opaque, and a series of apertures covered with translucent coloured material is provided adjacent the periphery. The inertia member consists of two obturating shields supported by spokes and adapted to rotate between the apertures and the electric lamps. For energizing and de-energizing the coils 26 of the motor, a thermal switch, Fig. 6, is employed comprising a fixed contact 49 and a contact 47 carried by a bimetallic strip 46 which is wound with a heating coil 48. Passage of current through the coil 46 results in the heating and bending of the strip 46 whereby coils 26, 46 are short-circuited at the contacts 47, 49. Subsequent cooling of the strip causes the contacts to separate and the action is repeated. In order to compensate for initial temperature variations, the contact 49 may be mounted on a bimetallic strip 50 having characteristics similar to those of the strip 46 so that both strips move in the same direction and the gap between contacts 47, 49 is maintained at a constant initial value. A resistance 116 is placed in the electrical circuit and the illuminating lamps of the sign may be used for this purpose. The motor may comprise a solenoid the core of which carries a rack engaging a pinion, and further, the inertia member may be arranged for pendulum motion instead of rotation.
Patent GB-432695-A (GB)
Title: Improvements in beating devices for the nozzles of suction cleaners
IPC: A47L9/04
Filed: 1935-02-15
Abstract: 432,695. Vacuum cleaners. GRAVE, O., 67, Hobrechtstrasse, Neukolln, Berlin. Feb. 15, 1935, No. 4931. [Class 8 (i)] A vacuum-cleaner nozzle has a beater 6 attached to a flexible diaphragm 5 which forms one side of a hollow body 3. The interior of this body is subj ected to the vacuum of the nozzle by the hole 16 but is intermittently exposed to atmospheric pressure by a hole in the floor wheel 12 uncovering the end of the pipe 11. The beater thus oscillates and passes through the hole in the shield 7 to beat the carpet.
Patent GB-271381-A (GB)
Title: Improvements in anti-rattling devices for vehicle window regulators
IPC: B60J1/00
Filed: 1927-02-22
Abstract: 271,381. Ternstedt Manufacturing Co., (Assignees of Fauser, F. J., and Edgar, F. M.). Feb. 22, 1927. Vehicle-window opening and closing apparatus; rattling of windows, preventing.-A rattling- preventing device for a window regulator of the lever-and-roller kind, as described in Specification 235,842 for example, consists of a spring-pressed fibre plunger k housed in a recess in the roller spindle e and adapted to engage the side b of the track. The plunger is retained in the recess by an annular part of the spindle spun down over it. 271,632. Suplee, H. H. May 7, 1926. Sliding doors; windows.-Sliding articles such as windows, gates, and doors are supported by means of links 3, 4, 13 - - 16 by which they are constrained to move approximately in a straight line vertically or horizontally without guides. The distance between the fixed pivots 7, 8, is preferably equal to the distance between the points 9, 10 and 11, 12 and the points 7, 8 are equidistant from the pairs of pivotal connections 17 - - 20 on the respective links, this distance being approximately twice the length of the links 13 - - 16. The links 3, 4, are bent at their upper ends so that in the extreme positions they will not obstruct the door opening.
Patent GB-114482-A (GB)
Title: Improvements in and relating to the Seats of Motors Cars.
Inventor: BARNETT JOHN HAROLD
IPC: B60N2/10
Filed: 1917-04-10
Abstract: 114,482. Barnett, J. H. April 10, 1917. Seats and seat backs, arrangement of.-Motorcars, particularly of the coupÚ and like types, are provided between the front and the interior of the car with a pivoted door e normally forming a back to a seat a which can be turned up or tilted clear of the front entrance; the door and the seat may be mechanically connected. As shown, the seat is secured to a pivoted bar b and can be turned into a vertical position, the front support c of the seat then resting on the floor d. An arm b<1> of the bar b is connected by a link k to an arm h on a pivot g provided with an arm g<1> which engages a slot l<1> in a plate l on the door. A counterweight or a spring p may be provided for balancing the seat. The seat is supported by the plate l and is provided with sockets which engage inclined pins e' on the plate and draw the door towards the seat. The seat retains the door-fastening n by engaging the end m<1> of a rod m which is connected to the fastening; on lifting the seat a. spring m<2> causes the fastening to be released. The seat is readily detachable, the support c being formed with studs which enter sockets in the bar b. The seat may be pivoted so as to turn towards the driver's seat a<1>.
Patent GB-1375948-A (GB)
Title: Light-weight high-strength structural panels
IPC: F17C13/00
Filed: 1972-02-03
Abstract: 1375948 Thermally insulating panel BALSA ECUADOR LUMBER CORP 3 Feb 1972 [10 Feb 1971 10 Nov 1971] 5112/72 Heading B5N [Also in Divisions F2 and F4] A thermal insulation panel comprises at least one facing sheet bonded to at least one layer formed from balsa wood beams and another insulating material of similar thermal conductivity substantially filling the spaces between the beams. Several layers L 1 , L 2 , L 3  (Fig. 2), may be superposed and the axes of the beams in one layer may be displaced from the axes of the beams in an adjacent layer. The other material may be in the form of slabs or bags of expanded material: foamed polyurethane, polystyrene, P.V.C. or glass, expanded mineral insulation, e.g. perlite or vermiculite, fibreboard, fibreglass insulation, rockwool, hairfelt and cork being referred to. The facing sheet, which may form the inner surface of a liquid storage tank may be formed of plywood, aluminium, high pressure phenolic polymers, steel, a flexible open mesh screen of glass fibres, a polyurethane film or paper and may be bonded to the core with an epoxy or urethane adhesive. The slabs may be pre-compressed before assembly so that as the panels are cooled gaps do not form between the beams and the slabs. The gaps between the edges of adjacent panels which may be dove-tailed or mitred may be filled with flexible insulation. In Fig. 9, the panel is composed of fire-retardant plywood facing sheets 38, 44 and a core of two layers of balsa beams B and insulating slabs F separated by a plywood sheet 40, the upper and lower parts being offset as shown to provide for interfitting.
Patent GB-1478216-A (GB)
Title: Radiant fuser for xerographic reproducing apparatus
IPC: G03G15/20
Filed: 1975-02-06
Abstract: 1478216 Fixing toner images XEROX CORP 6 Feb 1975 [25 Feb 1974] 5120/75 Heading G2H The apparatus comprises a first source capable of emitting radiant energy having wavelengths of the order of 0À5--2À0 microns, e.g. a quartz lamp 31, a second source capable of emitting radiant energy having wavelengths over 2.0 microns, a heated platen 30 over which a toner image bearing substrate is to be transported to directly expose it to the said radiant sources, and a shield 50 transparent to the energy emitted from both said sources interposed between them and the said substrate. The second source may be a low mass reflector that re-radiates energy from the first source as long wavelength energy or may be a resistance heating element 59 having an operating temperature substantially less than the said first source. The transparent shield 50 comprises a transparent film attached to frame members which are sprung apart to accomodate heat stretching of the film without sagging. A heating element 34 heats the platen 30 during standby periods only, i.e. when the quartz lamp 31 is not in use.
Patent GB-1527661-A (GB)
Title: Process for thermally cracking waste sulphuric acid
IPC: G10K5/00
Filed: 1976-02-10
Abstract: 1527661 Nozzles DAVY POWERGAS GmbH 10 Feb 1976 [15 Feb 1975] 05131/76 Heading B2F [Also in Division C1] Waste sulphuric acid is thermally cracked to form a gas containing sulphur dioxide (see also Division Cl) by injecting a fuel and the waste acid into a high-frequency sonic field and combusting the fuel in a cracking zone. The head 1 of the high-frequency atomiser nozzle is shown in Fig. 2. Acid is supplied through the central tube 2 which terminates in a pressure-operated atomiser-nozzle 5. Heating gas is supplied through annular duct 3 and a "sonic" gas (e.g. oxygen) is supplied through an outer annular passage 4 to a resonance chamber Y where the highfrequency field operates on the gas-mixture. The frequency is between 10KHz and 1000KHz, preferably above 20KHz.
Patent GB-525101-A (GB)
Title: Improvements in or relating to mattresses and to covers therefor
IPC: A47C31/02
Filed: 1939-02-16
Abstract: 525,101. Mattress covers. HEAL, R. G., and STAPLES & CO., Ltd. Feb. 16, 1939, No. 5192. [Class 52 (iv)] A mattress, particularly of the kind comprising a spring supporting-surface for a separate overlay, is provided with a cover of flexible material incorporating one or more strips or pieces of resilient material arranged to hold the cover taut on the mattress. As shown, the cover 15 is formed from ticking or canvas connected to the frame 10 by intermediate strips 16 of woven resilient material and non-elastic sleeves 17 containing steel or wooden battens 18. The resilient strips 16 may be secured directly to the frame 10, or instead of being arranged along the edges of the cover may be inserted between the sections of a built up cover.
Patent GB-608312-A (GB)
Title: Improvements in timepieces
IPC: G04B17/00
Filed: 1946-02-19
Abstract: 608,312. Clocks and watches. SCHILD SOC. ANON., A. Feb. 19, 1946, No. 5209. Convention date, Sept. 11, 1945. [Class 139] A timepiece is characterized in that the pillar plate 3, is formed integrally with the case band 3<1>. The pillar plate and the case band may be made of the same material throughout or they may be formed of two different metal members inseparably joined together. The bottom 6 and the crystal 7 engage grooves in the case band 3<1> and may be disengaged therefrom by manually operable cylindrical members 10. Ears 4 forming strap attachment means may be connected to the case band 3<1>, the bottom 6 or the rim of the crystal.
Patent GB-923886-A (GB)
Title: New dis-and tris-azo dyestuffs containing halogenated-ú¾-triazinylamino groups
Inventor: ANDREW HERBERT FRANCIS
IPC: C09B62/08
Filed: 1959-02-16
Abstract: The invention comprises azo dyes which contain at least 2 sulphonic acid groups and are of the formula A-N=N-M-N=N-E-NH-T wherein A is an aryl radical which may contain an azo group, M is the radical of a para coupling arylamine, E is the radical of a ketomethylene coupling component linked via the methylene group and containing a single aryl radical and T is a halogenated -striazine group; and their copper complexes.  They are prepared by condensing together equimolar proportions of a di- or tri-halotriazine and a suitable aminodisazo dye and if desired further condensing the product with an amine. Alternatively they may be prepared by coupling the diazo compound of an amine of formula A-N=N-M-NH2 with a coupling component of formula H-E-NHT.  The dyes may be used to colour cellulose fibres in the presence of an acid-binding agent in red, brown, blue and grey shades.  In examples (1) the dye aniline-2:5-disulphonic acid --> 2-methoxy-5-methylaniline --> 1-(31-aminophenyl)-3-carboxy-5-pyrazolone is prepared and condensed with cyanuric chloride; (2) the copper complex of the dye obtained as in (1) but using 1-(31-amino-41-sulphophenyl)-3-methyl-5-pyrazolone as end component is prepared and condensed with cyanuric chloride; (3) the product of (1) is condensed with sodium metanilate.  Many further examples and suitable components are specified. Specifications 797,946, 838,377, 842,933 and 847,635 are referred to.
Patent GB-251053-A (GB)
Title: Improvements in or relating to variable resistances
IPC: H01C10/50
Filed: 1925-02-25
Abstract: 251,053. Knorr, W., Appleton, W. A., and Joseph, J. Fob. 25, 1925. Variable resistances; sets of resistances.-Variable electric resistances comprise two separate resistance windings and a movable arm making rubbing contact with the surfaces of both windings, the arm being movable to an open-circuit position between the ends of the windings. Two metal plate 14 by bolts 15 and nuts 16. A parallel cylindrical windings 10, 11 on insulating formers 12 may be secured in a channel-shaped spring contact arm 13 is rotatable about an axis at right-angles to the axis of the coils 10, 11 and central between them. The spindle of the arm 13 carries an operating-knob and a pointer and extends through an externally screwed bush, an insulating panel or like support and a scale 24 being held between the plate 14 and a nut which screws on the bush and is locked thereon by a radial set-screw. The coils 10, 11 are electrically connected together at one end through one circuit terminal 25, the other circuit terminal 29 being connected through the plate 14 to the arm 13. The arm 13 springs into a notch 26 in the flange of the plate 14 in the open-circuit position and its movement in either direction across either resistance 10, 11 is limited by shoulders 28 of a projection on the other flange of the plate 14. For use with dull and bright emitter valves, the resistances of the coils 10, 11 are of different values. When the device is used as a potential divider, a third terminal is connected to the free ends of both windings. Reference has been directed by the Comptroller to Specifications 194,799, 200,977, 211,579, 229,730, 233,513, and 239,702.
Patent GB-1082721-A (GB)
Title: Improvements in or relating to liquid level sensing devices
Inventor: EAKINS KENNETH ARTHUR
IPC: B01D15/04
Filed: 1963-02-08
Abstract: 1,082,721. Liquid level indication. K D. G. INSTRUMENTS Ltd. May 8, 1964 [Feb. 8, 1963], No. 5280/63. Heading G1H. In a liquid level sensing apparatus a sensing element 10, having a volume to weight ratio of less than 1À2 grams per cubic centimetre, is supported on liquid, partly by surface tension, in such a way that the ratio of total length of the meniscus of the liquid to the weight of the sensing element is greater than 5 centimetres per gram and the apparatus also includes a mechanism responsive to the position of the sensing element. In the arrangement shown in Fig. 1 the sensing element 10 is partially supported on the liquid by a tension wire 11 in which is disposed a tension responsive switch 12 which controls a sensing motor 13 which raises or lowers the element 10. In a further embodiment, Fig. 7, the element 10 is supported on reeds 14, 15 of which reed 14 bridges contacts 16, 17 which control a motor to raise or lower a supporting shroud 18. In a further embodiment the element 10 is supported by a magnification linkage, Fig. 8 (not shown).
Patent GB-726911-A (GB)
Title: Improvements in or relating to a method and apparatus for making polyamide rod stock
IPC: B29C48/06
Filed: 1952-02-29
Abstract: 726,911. Extruding polyamide. POLYMER CORPORATION. Feb. 29, 1952 [March 13, 1951], No. 5358/52. Class 87 (2) Elongated shapes, such as rods C, are formed from a high-melting polyamide by feeding the material towards the open end of an elongated tube 20 and cooling it at a rate sufficient to effect solidification throughout a major portion of its cross-section prior to emergence at the discharge end of the tube, the polyamide being under pressure sufficiently high to fill the entrance end of the tube and to cause pressure to be exerted against the tube wall at this point. The polyamide is first dried, preferably by warming under vacuum, then delivered by means of a hopper 18 to a screw-feeder 16 heated by elements 19, where it is melted and fed through a perforated breakerplate (not shown) to the tube 20. The tube may be cooled by means of a water-cooling coil 21. As the polyamide advances along the tube it solidifies radially inwardly and shrinks from the tube wall. The rate of feed and the rate of cooling are so adjusted that the frictional engagement of the solidified annulus near the entrance of the tube causes a substantial pressure to be maintained in the molten material and thus prevents development of porosity due to shrinkage. Small quantities of fillers, e.g. graphite, anti-oxidants or modifiers, may be added to the polyamide. To initiate the extruding process the tube is provided with a plug which is initially placed in the entrance end of the tube and is forced towards the exit end by the advancing polyamide.
Patent GB-844899-A (GB)
Title: An improved machine for topping and tailing turnips and other root crops
IPC: A01D23/02
Filed: 1958-02-20
Abstract: 844,899. Beet-topping machines. RAE, J. S. April 24, 1959 [Feb. 20, 1958], No. 5488/58. Class 6(3). A machine for topping and tailing beets comprises topping knives 4 floatingly mounted on a disc 5 for rotation in a circular path in a forwardly and downwardly inclined plane so as to sever the tops by a sideways stroke, and a driven tailing disc-knife 14, behind the topping knives, rotating in an oblique plane in the opposite direction to the topping knives to throw the roots to the opposite side of the croprow. The machine comprises a frame 7 mounted on skids 20 and supported by tractor draughtlinks (not shown). The discs 5, 14 are driven by jointed shafts 6, 15, from gearing 25, 26 connected to the tractor power take-off. Floating movement of the topping knives is controlled by resilient pivoted arms 10 which support a bearing 12 behind the disc 5.