baber/WOPTO huggingface dataset:
Patent GB-1182986-A (GB)
Title: Improvements in and relating to Drying Apparatuses, Particularly for Green Crops.
Inventor: NIELSEN ALFRED THYGESEN
IPC: F26B17/10
Filed: 1968-05-31
Abstract: 1,182,986. Drying drum. A. T. NIELSEN. 31 May, 1968 [1 June, 1967], No. 26313/68. Heading F4G. In drying material (e.g. crops) in a drum 1, the material is carried by heated drying air blown or sucked axially through the drum to a netting 3 which retains the dried material but allows the passage of air, and the dried material is sucked from the netting by one or more suction nozzles 8 during relative movement between the nozzle(s) and netting. The drum may be rotatable and provided with vanes on its inner surface, or may be stationary and provided with rotary vanes.
Patent GB-484081-A (GB)
Title: Improved process for treating articles made of wood or other fibrous material
IPC: B27D1/04
Filed: 1936-09-29
Abstract: 484,081. Screw propellers. LANG, A. B. D. Sept. 29, 1936, No. 26401. Divided out of 482,585. [Class 114] [Also in Group XXIII] Compressed laminated articles as screwpropeller blades are formed from rift sawn laminated wood wherein the initial dimensions are greatest at the position requiring greatest compression and the consolidation is effected across the grain and parallel to the laminµ. A screw-propeller blade is made up of rift sawn laminµ f, the width being greatest at g and the annular rings in each lamina being disposed as at a. The compression is effected between parallel faces and diminishes gradually on either side of g. Specification 482,585 is referred to.
Patent GB-968215-A (GB)
Title: Improvements in and relating to carbonization
Inventor: MITCHELL CHARLES VERNON
Filed: 1961-07-21
Abstract: High purity graphite is produced by heating acenaphthylene, decacyclene or naphthacine in an inert atmosphere at atmospheric pressure to a temperature of from 350 DEG  to 400 DEG  C. at a rate of from 10 DEG  to 100 DEG  C. per hour, maintaining the temperature for 1 to 15 hours, increasing the temperature to 450 DEG  to 500 DEG C. at the same rate, maintaining the increased temperature for 1 to 10 hours, cooling the resulting coke material, heating the latter under atmospheric pressure to 800 DEG  to 1000 DEG  C. at a rate of from 10 DEG  to 100 DEG  C. per hour, maintaining the temperature to effect complete calcination and then graphitizing the calcined coke. Graphite rods may be prepared from the calcined coke by grinding, sizing and mixing with coal tar pitch and extruding into rods which are baked at 1000 DEG  C. and then graphitized at 3000 DEG  C. in a graphite tube furnace.  The product is suitable for use in atomic reactors.
Patent GB-502238-A (GB)
Title: Improvements in or relating to lifting platforms or hoists
IPC: B66F7/06
Filed: 1938-09-10
Abstract: 502,238. Platform hoists. MULLER, W. Sept. 10, 1938, No. 26481. [Class 78 (iii)] Transportable hoists, having platforms connected to a base-plate by a linked parallelogram and raised by driving rollers into the angle between the inclined links and inclined surfaces on the base-plate, are constructed with curved inclined tracks of approximately cycloidal form to equalize the lifting effort throughout the whole range of the apparatus, thus enabling hydraulic power to be dispensed with in favour of a direct drive from a relatively distant electromotor, so that access to the underside of the supported load is facilitated. The electromotor (not shown) drives a chain wheel 16, which rotates the shaft 15 and also causes it to move axially to draw the shaft 12 forward and thus cause the links 11 to force the wheels 8 over the curved surfaces 7. Parallel wheels at the same time engage the links 3 and elevate the platform 2. Links 17 pivoted on the shafts 9 connect the wheels 8 to similar wheels at the other end of the platform. In a modification, the track 7 descends slightly after reaching its highest point, before the platform reaches stability in its raised position.
Patent GB-952346-A (GB)
Title: Improvements relating to control circuits including magnetic amplifiers
IPC: H03K3/45
Filed: 1960-07-29
Abstract: 952,346. Automatic temperature control. GARRETT CORPORATION. July 29, 1960 [Aug. 3, 1959],No. 26563/60. Heading G3R. [Also in Division H3] A resistor 17, having a positive temperature coefficient, is connected in bridge circuit 18, the point A being normally positive with respect to point B so that control winding 14 of magnetic amplifier 12 opposes feedback winding 13. As the resistance 17 increases or decreases a relay 11 opens or closes to effect a return of the condition (such as temperature) being controlled to a value determined by the adjustment of resistor 19. If the resistor 17 is open circuited due to a fault, a diode 25 breaks down to shunt the winding 14 whereby the output from rectifier 8 remains stable to prevent re-energization of the relay. When the resistor 17 is short-circuited under fault conditions, the output of the bridge circuit is reversed and winding 15 is energized through rectifier 24. This winding overrides the windings 13,14,and the relay 11 is returned to its de-energized position. Should an interruption of the A. C. supply occur the amplifier output becomes zero and the relay drops out. Specification 952,347 is referred to.
Patent GB-735988-A (GB)
Title: Wreath-frame
Inventor: JAREMO TURE SIGFRID
IPC: A01G5/04
Filed: 1953-09-28
Abstract: 735,988. Wreaths. SVENSSON. J. E. W. Sept. 28, 1953, No. 26660/53. Class 93. A wreath frame is formed of a wire 1, e.g. ductile iron of rectangular section, bent into zig-zag or wave form, with extensions 2 and 3 formed as hooks or fastenings by bending out of the plane of the zig-zag. The wire may be formed into a frame, comprising two circles as shown, a single circle, or a heart shape. If a single wire is too short for the frame desired, two wires may be combined.
Patent GB-235772-A (GB)
Title: Draught excluder
IPC: E06B7/03
Filed: 1924-11-08
Abstract: 235,772. Pountney, C. E. Nov. 8, 1924. Ventilators. - A draught-excluding and ventilating device for windows comprises two wooden end pieces adapted to be secured to the top sash of a window by spring clips A and to carry a strip of blind B in an inclined position on the inside of the window.
Patent GB-735609-A (GB)
Title: A spark generator for igniting explosive mixtures, flash powders or similar substances
IPC: F42C19/12
Filed: 1953-09-29
Abstract: 735,609. Sparking plugs. ROCHAT, J. Sept. 29, 1953 [Oct. 6, 1952], No. 26736/53. Class 7(4). [Also in Groups XXI and XL(a)] A spark generator comprises two electrodes 1, 2 connected to a voltage source T and mounted on a support 3 of insulating material, a layer of metal in a colloidal state being applied to one surface of the support to form a conducting zone P. The metal may be colloidal silver, copper, gold or zinc. The electrodes may be of the same metal e.g. copper, iron or zinc or of different metals e.g. copper and zinc. The colloidal metal solution is applied to the insulator 3 with a brush or in a spray and then hardened. Two or more layers may be applied. Heat treatment is applied to the insulators to strengthen the adhesion and remove any electrostatic stress between the insulator and the metal, a temperature between 600‹ and 700‹C. being preferred for the treatment.
Patent GB-354090-A (GB)
IPC: B60Q1/34
Filed: 1930-09-09
Abstract: 354,090. Vehicle lamps. SCINTILLA AKT.-GES., Solothurn, Switzerland. Sept. 9, 1930, No. 26890. Convention date, Feb. 26. [Class 75 (iv).] Lens holders special to lanterns.-A lamp D has ar annular lens B disposed be tween a bracket A and a cover C screwed to a stirrup shaped member E which is pivoted to the bracket so that it can be swung aside to render the lamp accessible
Patent GB-1001161-A (GB)
Title: Method of preparing activated charcoals
IPC: C01B32/336
Filed: 1963-07-08
Abstract: Activated charcoal is prepared by feeding particulate vegetable charcoal into a rotary kiln, the interior of the kiln being at a temperature of from 800 DEG  to 1000 DEG  C., the kiln being provided at one end with an axially-positioned burner, an inlet for the particulate charcoal and a steam injection nozzle which is capable of injecting steam into the kiln at varying angles with respect to the kiln axis, injecting steam into the kiln through the nozzle so that it impinges on the charcoal to cause a water-gas reaction to take place on the charcoal particles thereby producing pores in their surface, and recovering the activated charcoal particles from the kiln. Direction of the steam jet to a point at which the temperature of the charcoal is about 1000 DEG  C. give a product with pores predominantly of radius 8000 to 10,000 A, which may be used to remove fusel oil from raw gin, and radio-active strontium-90 from drinking water.  Direction of the steam jets to a point in the kiln at which the temperature of the charcoal is about 850 DEG  C. gives a product with pores predominantly of radius 10<\>rA to 20<\>rA, which may be used to remove radio-active caesium from water.
Patent GB-287801-A (GB)
Title: Improvements in or relating to collars for personal wear
IPC: A41B3/12
Filed: 1927-10-11
Abstract: 287,801. Daunter, E. J. Oct. 11, 1927. Collars, linen and like; stiffening.-To maintain soft unstarched or semi-stiff collars in shape, a stiffener d bridges across from the band c to the corner of the flap or top b. At the corner of the flap or top a pocket a may be provided to house the end of the stiffener, which may be a strip of celluloid, and in the band a pocket may be provided between the flies for the same purpose. The pocket in the band may be replaced by slots cut in the folds of the material, or the strip d may be sewn to the band or to the top. The strip helps to maintain the neck-tie in position.
Patent GB-269635-A (GB)
Abstract: 269,635. King, W. E., and Gas Meter Co., Ltd. Jan. 14, 1926. Electric switches, combined with.-In gas-lighting apparatus in which a pilot-jet c for igniting a burner b is supplied with gas for a short period during the opening movement of the gascock a and is ignited by an electricallyheated filament e connected momentarily in circuit, the gascock a is adapted to be rotated in one direction onlv and embodies a lever, or cam h for engaging a spring k to complete the circuit through the filament e. In the form shown, the lever h is mounted on a spindle f controlled by clockwork mechanism and is engaged in slots in an annular portion j of the cock a. The spring k is thrust outwards within the housing m into engagement with contacts n, o embodied in terminals p, q screwed into an insulating block r. The leads g are connected to a dry battery. When applied to a burner which is required for brief periods such as for lighting cigars and the like, the cock a is adapted to be operated manually, the spring and cam being preferably arranged to normally retain the cock in the closed position.
Patent GB-1495440-A (GB)
Title: Paper pads
IPC: B42D5/00
Filed: 1975-06-25
Abstract: 1495440 Display devices IRVIN BROS (FLEET WORKS) Ltd 18 June 1976 [25 June 1975] 26966/75 Heading G5C [Also in Division B6] A pad of sheets, e.g. a writing pad, is printed on the side surfaces-i.e. those formed by the edges of the sheets or the binding-by transfer printing, preferably in multicolour, e.g. to produce the decorative effect or for advertising. The side surfaces may be coated with material improving adhesion of the ink prior to printing, or the transfer used may incorporate a layer of such a material.
Patent GB-1095286-A (GB)
Title: Security device for use in security papers
IPC: B44F1/08
Filed: 1963-07-08
Abstract: A security device for use in security paper comprises a continuous fine ribbon of a width of substantially 0.75 mm. and has printed thereon a design, lettering or pattern comprising characters of a height of substantially 0.4 mm.  For the Example, a continuous sheet fed from a roll of regenerated cellulose foil had a name printed upon it in parallel columns in letters 0.4 mm. high.  Alternate columns were displaced vertically by half the distance between successive lines.  The sheet was then slit into ribbons 0.75 mm. wide, each of which had the name repeated along its length, but separated by spaces which contained mutilated lettering.  These ribbons were then incorporated into paper by the method of Patent Specification 440,421.  The sheet may alternatively be of paper, metal or plastic film or a laminate, e.g. of a central layer of aluminium foil with a layer of transparent material on each side.  Identical designs, lettering or patterns may be printed on both sides.  The printing may be in inks of two or more different colours, of which at least one may be fluorescent or sensitive to a chemical reagent which causes it to change colour.  Phenophthalein is referred to as an ink component that will change colour when exposed to ammonia vapour.
Patent GB-997659-A (GB)
Title: Improvements in devices for mounting on machines for grinding hand tools and the like
IPC: B24B3/54
Filed: 1961-07-26
Abstract: 997,659. Sharpening tools. SOC. A.T.A.M., S.A.R.L. July 26, 1961 [July 30, 1960], No. 27014/61. Heading B3D. A device for sharpening knives, scissors or other hand tools comprises two flexible abrasivecoated discs 1 loosely mounted on a shaft 4 in face to face relation with their rim portions angulated to provide a V-shaped recess for receiving the tool, the discs being held in contact by springs 6, the tension of which is adjustable by nuts 9. The discs, which are covered with abrasive cloth, may be formed of rubber or plastic with a peripheral reinforcing ring 2 and internal reinforcing core 8. The shaft 4 is motor driven.
Patent GB-907958-A (GB)
Title: Printed circuit board
IPC: H05K1/00
Filed: 1961-07-26
Abstract: 907,958. Printed circuits. NATIONAL CASH REGISTER CO. July 26, 1961 [Sept. 27, 1960], No. 27023/61. Class 37. A printed circuit board comprises a plurality of parallel strips of metal attached to both sides of a perforatable insulating base such that the spaces between the strips on one side of the base coincide with the parallel strips on the opposite side. As shown in Figs. 1, 2 an insulating base 10 of plastic, glass or paper has preformed parallel strips of copper or aluminium 11-20 and 21-29 attached to opposite surfaces thereof, or alternatively the strips may be formed by milling metal clad laminates. Components 30-35, such as resistors, capacitors and diodes, are secured to the board by passing the component leads through perforations in the base and soldering to appropriate strips; the components and their leads acting as connectors between the strips. Thus component 31 connects strip 15 on one side of the base with a strip on the other side opposite the gap between strips 19 and 20 and component 30 connects strips 11 and 14 on the same side of the base, the leads of the latter component passing through perforations and providing external connections. The leads of the components are insulated from conductive strips by the insulating base itself or in the case when the strips concerned are on the same side of the base by providing the leads with insulating sleeving 36, 37 or by dipping the completed board and components in a bath of resin and allowing the resin to cure or alternatively by covering the board carrying the strips with resin prior to perforating the board and attaching the components.
Patent GB-275050-A (GB)
Title: Improvements in clothes hangers
IPC: A47G25/32
Filed: 1926-10-29
Abstract: 275,050. Melhuish, A. E., (Sinram. & Wendt Ges.). Oct. 29, 1926. Coat and like hangers.- In hangers of the type having a supplementary yoke for supporting the collar of the garment, the yoke g is made of wire looped at k to allow the hook c to pass freely through it. The wire may be flattened at the central part and perforated instead of being looped. For protection of garments, the wire may be fabric covered. The wire g has ends h passing into holes in the main part a of the hanger, such ends being maintained in position by the springiness of the wire.
Patent GB-502601-A (GB)
Title: Improvements in or relating to curtain heading tape
IPC: A47H13/16
Filed: 1937-08-20
Abstract: 502,601. Curtain-heading tapes. FRENCH & SONS, Ltd., T., and FRENCH, R. Aug. 20, 1937, Nos. 27150/38 and 27151/38. Divided out of 502,571. [Class 142 (iv)] [Also in Group XIV] The tape comprises a plurality of thicknesses of tape material a<1>, a<2> arranged in stepped relationship and, where they overlap, transversely interwoven or united togethpr by one or two weft threads at intervals a<3> to form hook passages a<6> opening on to opposite sides of the composite tape. Drawcords b may be provided for pleating, and one thickness of tape may be wider than the other. Fig. 6 shows three thicknesses of tape c<1>, c<2>, c<3> united at intervals where they overlap allowing of application to the curtain either way up and also allowing vertical extensions of the hooks to pass up into the curtain heading. Fig. 8 shows a further modification in which the warps of each thickness pass over to the other thickness to form pairs of hook tubes d<1> opening at their lower ends to the front of the tape and at their upper ends to the rear, alternating with pairs d<2> opening at their upper ends to the front and at their lower ends to the rear, allowing of either side of the tape being applied to the curtain either way up. Specification 502,571 is referred to.
Patent GB-389030-A (GB)
Title: Improvements in vacuum-jacketed flasks
IPC: A47J41/02
Filed: 1932-10-01
Abstract: 389,030. Vacuum-jacketed vessels. MARTIN, A. H., 30, Alderbrook Road, Balham, London. Oct. 1, 1932, No. 27321. [Class 29.] A screw-thread f is formed on the outer wall a below the shoulder e of a glass vacuum-jacketed flask, and engages a screwed ring g inserted in the upper end of the outer casing b, whereby the flask is held in the casing with its lower end and evacuating nipple clear of the bottom of the casing. The ring g is secured by beading its upper rim k over the rim of the casing. The flask has the. usual screwed neck d to receive the drinking cup.
Patent GB-1088785-A (GB)
Title: Improvements in or relating to methods for joining a surface to an adjacent copper surface
IPC: C04B37/00
Filed: 1966-06-20
Abstract: 1,088,785. Soldering. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 20, 1966 [June 23, 1965], No. 27454/66. Heading B3R. In a method of bonding a surface to an adjacent copper surface indium is placed between the surfaces and heat applied to melt the indium and slowly to raise its temperature in a reducing atmosphere to above 350‹ C., heating being continued until an alloy is produced the melting point of which is equal to the temperature to which heating is carried out so that the alloy solidifies at this temperature to form the bond. In an example a copper plated aluminium surface is joined to a copper surface, heating being carried out up to 500‹ C. The method is applicable to the formation of suitable joints in vacuum equipment such as a waveguide or an image intensifier.
Patent GB-978036-A (GB)
Title: Improvements in or relating to piston pins
IPC: F16J1/12
Filed: 1963-07-11
Abstract: 978,036. Connecting rods. H. MAHLE, and E. MAHLE, [trading as MAHLE KOMM.- GES.]. July 11, 1963 [July 11, 1962], No. 27491/63. Heading F2T. In a piston pin-connecting rod assembly the pin and rod are connected together, e.g. by bolts arranged parallel to the longitudinal axis of the pin, to form a rigid unit and the mutually contacting surfaces of the pin and rod, disposed transversely to the axis of the pin, comprise inter-engaging teeth. In Fig. 1, teeth 5 on the end of a connecting rod 3 engage with teeth 4 formed in a radial slot 2 in a cylindrical pin 1 connected to the rod 3 by a necked-down bolt 6 which presses the toothed surfaces against one another. Alternatively, three bolts may be used. In Fig. 5, the pin consists of two disclike parts 9, the contacting faces of which and of the connecting-rod annular end 8 have Hirth-type serrations 10, 11. Rigid connection is by means of an internally and externally screw-threaded sleeve 12 having screw-threads 13, 14 of different pitch. In a modification, Fig. 7, the teeth 10<SP>1</SP>, 11<SP>1</SP> are of annular form and the parts are connected by necked-down bolts 15.
Patent GB-1433614-A (GB)
Title: Production of low sulphur steel by electroslag remelting
IPC: C21C7/064
Filed: 1973-06-08
Abstract: 1433614 Electroslag remelting processes RHEINSTAHL HUTTENWERKE AG 8 June 1973 [10 June 1972] 27512/73 Heading B3F [Also in Division C7] Low sulphur steel is produced by electroslag remelting of electrodes containing rare-earth metal in at least sufficient amount to combine with the sulphur content, the remelting being carried out under a slag of CaF 2 , Al 2 O 3  and/or MgO, but free of CaO and SiO 2 , and preferably under a neutral or reducing atmosphere. In a preferred embodiment the electrodes are cast from a melt containing not more than 0À024% S which has been deoxidized, preferably with aluminium.
Patent GB-662916-A (GB)
Title: Improvements in alkyl silicon compounds
IPC: C07F7/12
Filed: 1949-10-27
Abstract: Alkyl chlorosilanes are prepared by heating to a temperature of at least 300 DEG  C. in the presence of a Friedel-Crafts catalyst, an alkane with an inorganic chlorosilane containing at least one hydrogen for reaction with an alkane attached to the silicon atom, e.g. the temperature range may be 300 DEG  to 500 DEG  C.  The alkane may contain from 1 to 6 carbon atoms.  The quantity of catalyst can be from 0.05 to 10 per cent by weight of the reactants.  Catalysts mentioned are boron and aluminium trichloride, boron trifluoride and aluminium tribromide.  Alkanes mentioned are methane, ethane, propane, isobutane, normal pentane and cyclohexane.  A number of detailed examples are given.ALSO:Silicon tetrochloride is obtained as the result of heating to a temperature of at least 300 DEG C. in the presence of a Friedel Craft catalyst, an alkane with trichlorosilane or dichlorosilane. Catalysts mentioned are boron trichloride and trifluoride and aluminium trichloride and tribromide.  Alkanes mentioned are methane, ethane, isobutane, normal pentane and cyclohexane.
Patent GB-500891-A (GB)
Title: Improvements relating to telephone systems
IPC: H04Q3/00
Filed: 1937-10-11
Abstract: 500,891. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., and LONG, D. P. Oct. 11, 1937, No. 27571. [Class 40 (iv)] A hunting switch stepped by a forwarddrive magnet which interacts with its own contacts or with a stepping relay, is stopped by the closure of a local holding circuit for the magnet when the test relay operates over the test wiper. According to the Provisional Specification, the stepping relay instead of the magnet may be held. The invention is applied to the rotary movement of a bidirectional finder stepped by self-interrupting magnets VM, RM, and controlled by test relays VT, RT in an allotter. The finder is started by the application of ground to wire p, whereupon switching relay H energizes in series with RM (inoperative) and closes the vertical stepping circuit and a holding circuit for itself. Both these circuits are opened by VT when the marked level is reached. The marking potential is fed over a high resistance, while the windings of VT are of low resistance so that two such relays cannot operate in parallel. Upon operation, the holding winding is connected in a local circuit or in parallel with the operating winding to guard against the shunting effect of a test relay in another switch. With H back, the rotary stepping circuit is completed until the marked line, is reached, when test relay RT operated and holds the magnet RM in series with the right-hand winding of H. Relay H locks over its left-hand winding and short-circuits RT, causing RM to fall back. Relay VT is disconnected by means not shown and the allotter is released. When the connection is cleared. the rotary magnet, RM reoperates to step the wipers clear of the banks, after which they are restored vertically and rotarily. The test relays VT, RT are preferably of the high-speed type described in Specification 405,436, [Group XXXVII].