baber/WOPTO huggingface dataset:
Patent GB-908973-A (GB)
Title: Improvements relating to oil-burning space-heating appliances
Inventor: LESLIE IAN ALEXANDER
IPC: F23D11/44
Filed: 1960-05-21
Abstract: 908,973. Radiant oil heaters. SANKEY & SONS Ltd., JOSEPH. June 22, 1961 [May 21, 1960], No. 18030/60. Class 75 (1). . A radiant drip-feed oil heater has a one-way spring-loaded valve 5, between the reservoir 2 and the burner housing 1, which may be opened by a pin 13 fixed to a piston head 11 sliding in a sump 9 which is in communication with the bottom of the burner even with the piston lowered. Normally the valve setting is adjusted by the lever 16 with a top flange 20 which is held in engagement with a ratchet plate 22 by a spring 23 on a pivot bolt 17. Finer adjustment is obtained by a manually operated screwed rod 25. Safety devices.-Various safety devices are incorporated, all of which act on the lever 16 to release it from the ratchet plate and allow the spring 19 to push up the piston head 11, thus sucking fuel out of the burner. A bi-metallic strip 30 will open out if the burner overheats, pushing a rod 31 against the end plate 34 (see Fig. 3) of the lever 16, thus dislodging the lever flange from the ratchet plate. Adjacent the sump 9 is a slide 35 held in contact with the floor by a spring 37. In ease of the heater overturning, a cranked portion at the top of the slide operates on the lever 16 as the slide is pulled down by the spring. If the draught over the top of the heater is very great, a plate 40 on a pivoted shaft 43 with a weighted bottom 45 is moved sufficiently for a knob 46 on the shaft, in contact with the end plate 34 of the lever 16, to dislodge the lever flange from the ratchet plate. In another embodiment, there may be two knobs 46, one above and one below the level of the centre of bolt 17, so that a strong draught either way will actuate the release mechanism.
Patent GB-1217498-A (GB)
Title: Method of treating a tape of an organic thermoplastic material
Inventor: GOY RONALD STANSFIELD
IPC: D02J13/00
Filed: 1967-04-20
Abstract: 1,217,498. Treating a tape of a synthetic organic thermoplastic material. DUNLOP CO. Ltd. 5 April, 1968 [20 April, 1967], No. 18129/67. Heading B5B. A tape of a synthetic organic polymeric thermoplastic material which has been "fully drawn" in the longitudinal direction is heat-set  (at a temperature above that at which it was fully drawn) under controlled conditions of relaxation. The term "fully drawn" is defined as meaning that the tape has been stretched to such an extent that if it were stretched further it would either contract back to its fully drawn length when the stretching force is removed, or, if stretched beyond the extent to which it is elastic, it would break. It is preferred to use a tape which has been fully drawn at a temperature near the softening point of the polymer of which the tape consists e.g. 120-140‹ C. for polypropylene. The heat-setting temperature is preferably as high as possible without causing degradation or melting of the polymer. The fully drawn tape is preferably further stretched, e.g. up to 5% of its fully drawn length, prior to being allowed to relax under controlled conditions during the heat-setting operation. A fully drawn tape of polypropylene may have been drawn from 8 to 11 times its original length. The tape may be heated in a fluidized bed of solid particles during the heatsetting operation, whereby the tape becomes fibrillated. The tape is preferably twisted during heat-setting and/or while it is being drawn and/ or as a separate operation. The twisting process may be used to fibrillate the tape or the tape may be fibrillated prior to being twisted, e.g. by passage through a fluidized bed of solid particles. The tape may be crimped prior to being heat-set. The tape material is preferably polypropylene, especially isotactic popropylene. It may be polyethylene, polystyrene, a polyepisulphide, polyacrylonitrile, a polyamide, polyvinyl chloride, a polyurea, a polyurethane or a polyester, e.g. polyethylene terephthalate. The heat-setting temperaure may be within 50‹ C. of the normal melting point of the tape material. A cold solvent may be applied to the fully drawn tape prior to the heat-setting step and the solvent evaporated from the tape during the heat-setting step. In an example, a fully drawn 3200 denier polypropylene fibrillatable tape having 2¢ turns per inch is heat-set by the continuous process using driven godets and festoon rollers in association with a fluidized bed of Ballotinic at a temperature of 140‹ C. The tape had previously been drawn at 130‹ C. and a draw ratio of 9 to 1. The speeds of rotation of the rollers was such that the tape was stretched between the input godets and the festoon rollers by about 4% and was allowed to relax between the festoon rollers and the output godets by about 5%.
Patent GB-256938-A (GB)
Title: A method of producing coloured lighting effects for signalling, advertising and cinematographic purposes as well as for illuminating fountains or the like
IPC: F21V9/40
Filed: 1926-07-20
Abstract: 256,938. Jirotka, B. Aug. 12, 1925, [Convention date]. Lighting, systems of.-In order to produce a coloured light suitable for use in signalling, advertising, cinematography, illuminated fountains, or the like, light is reflected by a reflector having iridescent coloured surfaces. A single source of light may be employed or each reflecting surface may be provided with a separate source of light. The coloured light may be projected directly on to the objects to be illuminated, or it may be merged into a beam of white light such as from a searchlight.
Patent GB-289289-A (GB)
Title: Improvements in or relating to the preparation of a complete food in granular form for poultry
IPC: A23K1/18
Filed: 1927-07-11
Abstract: 289,289. Bertels, B. H. July 11, 1927. Food for poultry.-A food in granular form for poultry is manufactured by mixing together finelyground kinds of grain, ordinary meal and animal meal, partially expressed oil-containing seeds, food salts and constituents containing vitamines such as cod liver oil and dried yeast, the mixture then being pressed in a dry state into granules of the required size. The grain may be wheat, yellow maize, rice, oats, buckwheat and barley. The oil-containing seeds may be linseed, sunflower seed and ground nuts, these being expressed to contain about 10 per cent of oil. As examples of ordinary meals. semolina and rice meal, tapioca meal are given and meat meal is mentioned as a meal of animal origin. In a specific example, the food is made from the following proportions by weight of the mentioned constituents : 2 per cent linseed, 10 per cent sunflower seeds, 4 per cent ground nuts, 5 per cent wheat, 25 per cent yellow maize, 5 per cent rice, 5 per cent oats, 5 per cent buckwheat, 8 per cent barley, 3 per cent semolina, 8 per cent rice meal, 2 per net tapioca meal, 1 per cent fish oil rich in vitamines, 2 per cent unextracted dried yeast, 7 per cent meat meal, 6 per cent other meal of animal origin and 2 per cent pulverized calcium phosphate.
Patent GB-501883-A (GB)
Title: Improvements relating to sheet rubber calendering machines
IPC: B29B7/68
Filed: 1938-06-21
Abstract: 501,883. Rubber calenders. GLEISSNER, P. June 21, 1938, No. 18413. [Class 70] A sheet-rubber calendering-machine has, on both rollers, eccentric bearing sleeves or rings 15 between the roller trunnions 6 and the bearings 18, or has eccentrically bored bearings, so that the rollers may be adjusted by means of worm 21 to be inclined to one another. Such an adjustment obviates the necessity for grinding the rollers to have a cambered surface. A bearing bush or antifriction bearing 29 may be provided between trunnion 6 and ring 15.
Patent GB-891824-A (GB)
Title: Apparatus for making photographic copies
IPC: G03B27/30
Filed: 1960-05-25
Abstract: 891,824. Copying apparatus. ZINDLER, W., [trading as LUMOPRINT ZINDLER KOMM.-GES.]. May 25, 1960 [May 29, 1959], No. 18434/60. Class 98(2). Apparatus for the production of photographic copies in a migratory transfer process, using tape-like negative and positive layer carriers which are cut in accordance with the size of the exposed image, has a knife for cutting both layer carriers in one movement which is actuated in dependence on the movement of an original in the apparatus. In the apparatus shown the originals stacked at 24 are fed in turn in the arrowed direction through the apparatus until each one is pressed against a negative transfer layer 3 between a feed roller 10 and a cylinder 6 and exposed to light from a lamp 4 so that an image is formed on the negative; the originals are then moved into a receiver 35 and the negative layer and a positive layer 5 are pressed together between rollers 11, 12 and then pass through a cutting means 11, 22, along parallel guides 14-15, through a developing solution 13 and out through rollers 17, 18, where the liquid is squeezed out. The initial feeding means for the originals comprises a rotating disc 32 which has one or more flexible rake shaped arms 33 the prongs of which pass through a feeding belt (or belts) 27 and a support 25 for the originals, force the uppermost original 26 between feed roller 31 and belt(s) 27 and then move on until they operate in turn a switch 34 connected to a magnetic means for moving a knife 22 past stationary knifes 20, 21 to cut the negative and positive layers at a predetermined place. The time interval between an original being moved by an arm and the so knife being operated can be controlled by varying the rotation speed of the disc 32, the number and length of the arms, or by having an electrical time control means 56 between the knife and the switch. In an alternative feeding means the original is initially held stationary on the moving belts by an abutment in the form of a vertical lever which is moved out of the path of the originals at predetermined intervals by the arms of the disc 32 pressing against a projection on it and moving it downwards against the force of a spring. The disc 32 may be provided by cams instead of arms. The various rollers which serve to feed the originals and layer carriers through the apparatus may be driven from one motor 57 through belts.
Patent GB-321145-A (GB)
Title: Improvements in reciprocating engines for pulverulent driving media
IPC: F02B45/02
Filed: 1928-06-26
Abstract: 321,145. Pawlikowski, R. June 26, 1928. Cylinders. - In a powdered fuel engine the cylinder is formed with a detachable liner whose surface is harder than the solid fuel particles; in the working of the engine those particles remaining in the cylinder are crushed and pass away with the waste lubricating oil. The liner may be formed of a chilled casting, nitrite steel, or other hard alloy. It may be screwed into an outer sleeve or held in place by an alloy l poured in a molten state between the liner i and main cylinder b. This alloy is of a lower melting point than the liner or sleeve and can be removed through a bore m by heating the cylinder, when it is desired to detach the liner. The piston may have a hardened liner of the same material as the cylinder liner.
Patent GB-817220-A (GB)
Title: Improvements relating to carrier bags
Inventor: BARON ARTHUR JAMES
IPC: B65D33/12
Filed: 1956-06-15
Abstract: 817,220. Carrier bags. BIBBY & BARON Ltd. June 14, 1957 [June 15, 1956], No. 18532/56. Class 133. Along each top edge of a carrier bag, two strips of card 1, 2 are secured face-to-face with a length of string 3 arranged sinuously between them so that it can be pulled out at a centre cut-out 6 to form a handle. The ends of the string are secured between the strips in adhesive areas 4.
Patent GB-1302582-A (GB)
IPC: H01J31/15
Filed: 1970-04-17
Abstract: 1302582 Cathode-ray tubes SONY CORP 17 April 1970 [17 April 1969(2)] 41334/72 Heading H1D An electron tube for displaying numbers or the like comprises a number of selectively energizable fluorescent segments mounted on an insulating base and surrounded by a planar electrode also mounted on the base. In Fig. 5 a plurality of fluorescent segments A1-A7 each connected to an individual lead-in are arranged in apertures in a surrounding electrode G, the apertures forming an outline of a figure eight; the segments and the electrode may be coatings on an insulating base, and the electrode may be coated with opaque material. A negative voltage of 20 to 100 volts is applied to the surrounding electrode and a positive voltage of 20 volts to the segments to be illuminated: alternatively the surrounding electrode may also be luminescent so that a number 8 is displayed by making it light whilst the segments are dark. The base plate 5 carrying the electrodes and their associated leads 10 1 -10 8  and terminals 7 1 -7 8  may be entirely sealed within an evaculated envelope but preferably the edge extends outside the envelope to expose the terminals, and the plate may form one wall of the envelope (Figs. 7-11, not shown).
Patent GB-1462469-A (GB)
Title: Oxidation of carbon monoxide and hydrocarbons
IPC: B01J23/889
Filed: 1974-04-29
Abstract: 1462469 Exhaust gas treatment HOECHST AG 29 April 1974 [9 May 1973 14 March 1974] 18568/74 Heading C1A Carbon monoxide and hydrocarbons contained in the exhaust gas from an internal combustion engine are oxidized by catalytic reaction with an oxygen-containing gas to form carbon dioxide and water, the oxidation being performed at a temperature in the range 150 to 800 C. in contact with a carrier-supported catalyst whose activity is substantially independent of the concentration of oxygen in the gas mixture, the carriersupported catalyst being prepared by calcining aluminium oxide which is substantially free from alkali metal ions and silicate ions at a temperature in the range 1000 to 1200 C., impregnating it with one or more salts of copper manganese and nickel and heating to form copper, manganese and nickel aluminates, in a weight ratio of (2-4) : (1-2) : (0À1-1), the aluminates comprising 10 to 45 wt. per cent of the total weight of the carrier-supported catalyst. The catalyst may contain as an additional component 0À5 to 10 wt. per cent of cerium oxide, and this preferred catalyst may be prepared by impregnating the catalyst as prepared above with an aqueous solution of a decomposable cerium salt, drying it at a temperature in the range 130 to 150 C., heating first at a temperature in the range 200 to 300 C. and subsequently at a temperature in the range 450 to 550 C. to decompose the cerium salt, and then calcining at a temperature in the range 700 to 800 C.
Patent GB-762451-A (GB)
Title: Improvements in and relating to the sealing or welding of thermoplastic materials
IPC: B29C65/18
Filed: 1950-07-26
Abstract: 762,451. Seaming non - metallic sheets. BLAND, A. H., and BLAND (ENGINEERS), Ltd., A. H. Sept. 27, 1951 [July 26, 1950], No. 18676/50. Class 42 (1). Thermoplastic sheet material is welded by conducting heat through the material from a hot body at a temperature well above the welding temperature to a cold body below it, the two bodies being good conductors of heat, so that that part of the hot body which is in contact with the material is rapidly cooled to below the welding temperature. In the apparatus shown, the unheated lower jaw 14 comprising the cold body is a rectangular section bar, having depending therefrom a pair of pillars sliding in holes in the frame 10, and is normally held above the frame by springs 22. The upper jaw 16 comprising the hot body is suspended from a yoke 26 connecting two pillars 28 mounted to slide vertically in the frame 10 and joined at their lower ends by a yoke 30, this assembly being supported on the frame 10 by springs 32. The jaw 16 is provided with an electric heating element 38 adapted to heat it to a temperature, say 200‹ C., well above the welding temperature, and with a thermostat 43 adapted to maintain that temperature only roughly constant, say, having a range of about 5‹ C. above or below a set temperature, and has a pressing portion in the form of a rib 42 either embedded in and projecting from, or integral with the jaw, and of small mass in relation to that of the jaws 16 and 14. The lower end of the rib may be T-shaped. The jaws may be brought together by the action of a solenoid 46, the armature 48 of which has a ramp 52 which presses down a roller 54 carried by the yoke 30. The solenoid may be provided with a timing device for regulating the frequency and duration of its operation. The machine may be hand or foot-operated, or power driven, and may be fully or semi-automatic. In order to prevent the tongue of the upper jaw sticking to the thermoplastic material, it may be covered with a material having good thermal conductivity and a fusing temperature higher than the maximum temperature of the tongue, e.g. polytetrafluorethylene. The lower jaw may be covered with a strip of material of low thermal conductivity, e.g. fabric, to reduce the rate of heat transfer.
Patent GB-1440533-A (GB)
Title: Pitot pump with thrust balance
IPC: F04D1/12
Filed: 1974-04-29
Abstract: 1440533 Centrifugal pumps KOBE Inc 29 April 1974 18707/74 Heading F1C In a single or multi-stage rotary chamber pump comprising a rotary casing 9 surrounded by a stationary housing 13 and mounted for rotation on fixed tubular means 18, 19', 20' provided with one or more scoops 19, 20, the driving shaft 30 for the casing is provided with an extension 22 journalled in a cylindrical member 21 connected to the tubular means, and the cross-sectional area of the extension 22 is approximately equal to the crosssectional area of the tubular means at region 56 so that there is substantially no nett fluid force in chamber 53 tending to move the casing axially relative to the housing to overload the bearings 33, 35. Moreover, the space within the extension 22 is vented to the low-pressure inlet side of the pump via a pipe 65.
Patent GB-403739-A (GB)
Title: Improvements in the manufacture of staple fibre yarns from continuous filaments
IPC: D01G1/08
Filed: 1932-07-04
Abstract: 403,739. Stapling continuous filaments by drawing. BRITISH CELANESE, Ltd., 22, Hanover Square, London, TAYLOR, W. I., and GIBBINS, L. B., c/o British Celanese, Ltd., Spondon, near Derby. July 4, 1932, No. 18827. [Class 120 (iii).] Yarn of a fibrous character is obtained by subjecting to a breaking operation a plurality of continuous filaments which have undergone modification in strength at intervals along their length, the resulting sliver of staple fibres being spun. The modification in strength may be effected by weakening the filaments at intervals e.g. by bruising them or by applying a solvent or softening agent at intervals or, in the case of cellulose esters, by applying saponifying agents at intervals, e.g. as in Specification 332,263, [Class 2 (ii), Cellulose &c.] ; alternatively, the filaments may be strengthened except at points at intervals by applying a size intermittently to them. The filaments are then broken by passing through two pairs of rollers, of which the second pair rotate faster than the first, and may be spun, or wound and subsequently spun, or doubled. Filaments comprising a yarn are preferably weakened in staggered formation so as to preserve the continuity of the yarn after breaking, but when several yarns are being broken together, all the filaments of any one yarn may be weakened at the same point. False twist may be applied to the broken filaments, and they may be supported by travelling bands or the like. The filaments may be treated, preferably before breaking with roughening media such as kieselguhr, talc, pumice, carborundum and emery, or with the media described in Specification 372,797, or with hygroscopic substances as in Specification 387,003. Fig. 3 shows a type of apparatus suitable for bruising the filaments 37, comprising a pair of rollers 32, 33, one having a spiral ridge 34, and the other a corresponding groove 35. Fig. 5 shows a size applying roller 45 which has a spiral groove 47, so that filaments 37 passing in contact with the roller are sized and strengthened except at certain intervals. The filaments so treated are broken between two pairs of rollers 26, 27, Fig. 2, which shows four yarns, the filaments of each of which have all been weakened at the same point. The sliver so produced is twisted and wound by the flyer 29 on the bobbin 30. Specification 403,738 also is referred to.
Patent GB-590189-A (GB)
Title: Improvements in or relating to cinematograph film contact-printing apparatus
IPC: G03B27/08
Filed: 1944-10-03
Abstract: 590,189. Kinematograph film printing machines. GLUCK, V., and WILLIAMS, R. C., [trading as ELMEC ENGINEERING CO.]. Oct. 3, 1944, No. 18862. [Class 98 (ii.)] A gate for a skip printing machine, used, e.g. for printing colour separation positive films from a recurring series negative film, consists of a member affording a passage for the superimposed positive and negative and a separator, disposed in the passage and between said films, which is adjustable longitudinally in relation to the exposure aperture to such a position that it will remove the uppermost (positive) film from the claw transport pins after both films have advanced by one or more frames, whereafter the negative film alone advances by the number of frames to be skipped. As shown in Fig. 2, the positive and negative films 3, 2 pass over a plate 1, first over an exposure aperture 1a therein, and then beneath a plate 4, which is grooved to allow the back and forth movement of the transport pins 5. Below the plate 4 and between the films is a separator having a cross-piece 6 and a tongued portion 7 with a bevelled end 8, which may be adjusted longitudinally in relation to the exposure aperture so that the film 3 is removed from the film 2 after both have advanced by one or more frames from the exposure aperture. The mechanism of the claw pins is also adjustable so that the film 2 alone may be carried the required number of frames before the pins 5 are lowered and returned to their initial position. During exposure, the films 3, 2 are held in contact by steady pins 9, which are lowered after exposure. The mechanism of the steady pins and the claw pins may be that described in Specification 590,188.
Patent GB-283798-A (GB)
Title: Improvements in spark-producing toys
IPC: A63H33/36
Filed: 1927-07-18
Abstract: 283,798. Arnold, C. July 18, 1927. Spark-producing toys.-A spark-producing toy is provided with coloured, transparent panes m secured by flaps k to a disc l and adapted to be rotated by frictional engagement with the rotary spindle d of the spark-producing mechanism. The panes may be removed for replacement by bending the flaps k. The spark-producing mechanism comprises cerium stones g rotated in frictional engagement with an emery disc f by the operation of a rack b.