baber/WOPTO huggingface dataset:
Patent GB-289308-A (GB)
Title: Improved process of removing graphite incrustations from ovens, in particular from coke ovens
IPC: C10B43/10
Filed: 1927-08-10
Abstract: 289,308. Capiau, G., Gauquier, M., and Lahaut, L. Aug. 10, 1927. Drawings to Specification. Cleaning.-The grraphic incrustation on ovens such as coke ovens is removed by projecting on to it, preferably while hot, a jet of compressed air carrying a hard powdered or granular material such as plumbago, or crushed slag. The incrustation is cut into blocks, which can subsequently be loosened or knocked off. Preferably, longitudinal cuts are made along the middle of the roof and at the sides, followed by transverse, cuts if necessary. After the outer crust of the material has been broken, the cutting may be completed by compressed air alone. The ejector apparatus described in Specification 286,933 may be used.
Patent GB-1282011-A (GB)
Title: Improvements relating to w.c. cisterns
Inventor: STOTT CHARLES KENNETH
IPC: E03D1/10
Filed: 1969-04-25
Abstract: 1282011 Flushing cysterns ARMITAGE WARE Ltd 21 May 1970 [25 April 1969] 21215/69 Heading E1C In a flushing cystern for a w.c. of the kind wherein a plunger-actuating shaft 1 is rotated by a handle 7, the rotation of the shaft is limited in both directions by providing on the shaft a bush having a flange 10, a portion of which is cut away to provide abutment surfaces 11, 12 adapted to co-operate with fixed abutment surfaces on a projecting stop 14 on the cystern wall. The bush passes through an aperture 6 in the cystern wall to provide a bearing for one end of the shaft 1, the other end of the shaft being similarly received in a bush 8 formed integrally with the handle 7 and being journalled in a corresponding aperture in an opposite wall of the cystern. The bushes are secured to the shaft by split pins passed through aligned transverse bores in the bushes and shaft.
Patent GB-1033923-A (GB)
Title: Polyvinyl chloride-coated articles
Inventor: GRIMSHAW HENRY
IPC: D06N7/00
Filed: 1962-06-02
Abstract: A polyvinyl-chloride-coated article comprises a fabric base having a surface layer of polyvinyl chloride, the whole or localised areas of such layer having granules of plasticised polyvinyl chloride bonded thereto or embedded therein, with at least parts of said granules protruding from the surface of the layer to provide a frictional facing on the article.  The granules may be applied without smoothing or applying pressure while the layer of P.V.C. is still tacky, and the whole then cured by heating.  Additional layers may be provided over the granules. The process may produce articles of clothing e.g. gloves, and sheet materials e.g. floor coverings which may be felt, upholstery, furnishing and clothing fabrics.  The first surface layer may be applied by dipping in a paste or plastisol of P.V.C. In an example a knitted cotton glove is pulled over a former and dipped in P.V.C. plastisol, P.V.C. granules are supplied to palm and fingers, and the whole is then cured.
Patent GB-1433355-A (GB)
Title: Central heating control apparatus
IPC: F24D19/10
Filed: 1973-05-04
Abstract: 1433355 Central heating systems A LINS 4 May 1973 [5 May 1972] 21379/73 Heading F4U  A central heating system comprises a boiler 1, a domestic hot water tank 2, a heating circuit including radiators 4, and a control device (Fig. 2) which includes within a housing 20, a circulating pump 12, a temperature-responsive changeover valve 13, a temperature-responsive mixing valve 14 as well as flow and return connections 5-10 for the boiler, the heating circuit and the heat exchanger 3 in the tank 2. In operation of the system, the changeover valve 13 closes off the heat exchanger return 10 (as shown in Fig. 2) when enough domestic hot water is stored in tank 2 so that pump 12 then feeds the heating medium (usually water) only through the circuit of the boiler 1, the mixing valve 14, the radiators 4 and the valve 13. Depending on the adjustment of the temperature-dependent means of the mixing valve 14, either a proportion of the returning heating medium is fed back directly via the mixing pipe 11 into the flow of heating medium passing through connection 7 (attached to chamber 21) to the radiators 4, or pipe 11 is closed off and all of the returning heating medium passes into the boiler 1. When the domestic water in tank 2 is to be heated, then by means of valve 13, the heating connection 8 is closed (disc and seating 27 coming together) and connection 10 opened. During this time, no water flows through the radiators 4 or through connection 7. If mixing valve 14 opens to connect pipe 11 to connection 5, a proportion of the returning heating medium may pass into the tank 2 through connection 9. The temperaturedependent closure means of the valves 13, 14 may be removed from their respective chambers as single units.
Patent GB-883068-A (GB)
Title: Improvements in carrier bags
IPC: B65D33/12
Filed: 1958-07-04
Abstract: 883,068. Carrier bags; boxes. GATWARD, H. F. (Bahamas Paper Co. Ltd.). Oct. 21, 1958 [July 4, 1958 ; Aug. 6, 1958], Nos. 21509/58. and 25241/58. Classes 18 and 133. A carrier bag of the type disclosed in Specification 794,600 has a string handle 7 the ends of which pass through holes 6 and then upwardly through holes 8 in the lower flap, the ends being provided with " 8 " tags 9 which are passed further through registering holes 12 in the upper flap ; such engagement with the upper flap draws it firmly against the lower flap to close the bag when the loop of the handle 7 is passed through a slot 10 in the upper flap for carrying. Alternatively, two handles 7 and two slots 10 are provided, but only one set each of holes 8 and 12, the second handle being merely for ease of carrying.
Patent GB-976685-A (GB)
Title: Improvements in or relating to film resistors
IPC: H01C7/18
Filed: 1963-05-30
Abstract: <PICT:0976685/C6-C7/1> A film resistor is fabricated by depositing a film containing tin oxide on a substrate, coating the film with a thin layer consisting essentially of carbon and heating the resulting assembly at an elevated temperature.  The deposited carbon layer reacts with oxygen in the oxide film and is ultimately volatilized in the form of CO or CO2, thereby increasing the mobility of the remaining oxygen atoms in the oxide film.  The oxide film may contain up to 8% indium oxide or antimony oxide in addition to the tin oxide. A suitable apparatus for depositing the oxide film by sputtering is shown in Fig. 1 and comprises a vacuum chamber 11 housing a cathode 12 of Sn, Sn-Sb alloy or Sn-In alloy and an anode 13 on which rests the substrate 14, e.g. fused silica, to be coated.  The anode 13 is mounted atop an Al hemisphere 19 which serves to permit uniform dispersion of the gas, a mixture of A and O2 or O2 alone entering through conduit 21 during the sputtering operation, through apertures 25.  The voltages should be 1500-2000 volts, the pressure 30-50 microns of Hg. and the current 50-100 mA., and the substrate 14 should be positioned immediately without Crookes Dark Space on the anode side. Sputtering is conducted for sufficient time to produce the desired film thickness, thicknesses of between 10 and 100,000 A.U. being of interest in resistor manufacture.  A thin film of carbon is subsequently deposited upon the oxide film by evaporation, of a thickness from 15 to 150 A.U., and the entire assembly heated in air at a temperature within the range 600-1000  DEG C. for from 15 to 180 minutes, so producing the desired resistive film. Suitable terminals are then attached, e.g. by applying a silver paste to opposite ends of the assembly and firing at 500  DEG C.  Results of tests are given which show an improvement in reproducibility, and expanded range of resistivities and elimination of flaking as compared with resistors made by known methods.
Patent GB-693411-A (GB)
Title: Continuously processing ferrous strip or sheet material
Inventor: WARD ALFRED HANSON
IPC: C21D8/04
Filed: 1951-09-14
Abstract: A method of treating ferrous metal sheet or strip comprises working the metal at a temperature of 350-500 DEG F to stress its outer layers to the yield point and immediately quenching to at most 150 DEG F.  The working may be effected by passing the metal over rollers with a diameter not greater than 500 times its thickness, and the metal may be further worked after quenching by passing over rollers of diameter not greater than 100 times its thickness before being roller levelled.  The treatment is particularly applicable to strip after annealing or hot-dip coating.
Patent GB-1198376-A (GB)
Title: Fibrous Strand Product and Method of Producing the Same
IPC: D02G3/20
Filed: 1968-05-08
Abstract: 1,198,376. Wet-spinning device. JOHNSMANVILLE CORP. 8 May, 1968 [29 May, 1967], No. 21660/68. Heading B5B. [Also in Division D1] In a method of forming a continuous strand from short lengths of inorganic fibres, such as chrysotile asbestos, see Division D1, a non- colloidal dispersion of fibres in water to which an agent such as sodium alginate has been added, is fed under pressure to an extrusion nozzle 5, of the form shown, which discharges the fibres in substantially parallel alignment with each other into a bath 6 supplied with a coagulating agent such as an acidified solution of calcium acetate. The sodium alginate and calcium acetate thereby react to precipitate calcium alginate which binds the fibres into a continuous strand 10.
Patent GB-757598-A (GB)
Title: Improvements in or relating to overload clutches
IPC: F16D43/20
Filed: 1953-08-06
Abstract: 757,598. Overload release devices. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 6, 1953 [Aug. 9, 1952], No. 21737/53. Classes 80(2) and 80(3) In an overload-release device which reengages automatically when the overload is cleared, for rotary or rectilinear motion, having an intermediate member 4 connected to the driven member 2 by a spring 9 and to the driving member 1 by a clutch controlled by the relative displacement of the intermediate and driven members, backward movement of the intermediate member being prevented, means are provided for ensuring gradual engagement of the clutch, which is of friction, hydraulic or electrodynamic type. In the diagrammatic arrangement shown, for rectilinear motion, one end of a friction band 3, coacting with member 1, is secured to member 4 and the other end is connected to one arm 5 of a bell-crank lever pivoted at 7 on member 4. The other arm 6 of the lever is connected to a member 18 carrying a pawl 17, co-acting with ratchet teeth 16 on a part 15 rigid with member 4, and also carrying the cylinder 20 of an adjustable hydraulic dash-pot, the piston 21 of which is pivoted at 22 on member 4, the dash-pot being such that movement of member 18 to the left is retarded. A spring 8 is connected between members 2, 18. During normal drive, to the left, the parts occupy the relative positions shown, with the clutch 3 engaged and with pivot 7 on the right-hand side of spring 8. On increase of driven load, member 2 lags behind member 4, spring 9 stretching, and pivot 7 eventually moves to the left-hand side of spring 8. At a predetermined load, determined by spring 9, an inclined face 19 on member 18 engages an inclined part 13 on member 2 and member 18 is deflected downwards. This releases pawl 17 from teeth 16 and spring 8 then promptly pulls member 18 to the right, causing lever 5, 6 to turn anticlockwise and thus disengage the clutch. Member 4 now tends to move backwards, to the right, but such movement is prevented by a spring-loaded roller 23 thereon co-operating with an inclined surface 25 on member 4 and with a plane stationery surface. When the overload is cleared spring 9 pulls member 2 to the left and the parts regain their normal positions shown, in which a part 14 in member 2 maintains roller 23 just clear of surface 25, the dash-pot 20, 21 ensuring that the clutch re-engages only gradually. A detailed contruction for rotary motion is also described. The lever 5, 6 may alternatively control the quantity or pressure of liquid in a hydraulic coupling used instead of the friction clutch, or the energization of an electrodynamic coupling.
Patent GB-181268-A (GB)
Title: An improved firelighter
IPC: C10L11/04
Filed: 1921-08-17
Abstract: 181,268. Parnell, F., and Parnell, J. Aug. 17, 1921. Composition fuel.-A mixture in the proportions of 3 oz. of plaster of paris, 1, oz. of fine sawdust, 3/16 oz. of red ochre, 1 oz. of paraffin wax, and 1 oz. of resin is reduced by heat to a paste and moulded into blocks each consisting of four firelighters.
Patent GB-205264-A (GB)
Title: A detachable and combined toe-cap and tip for boots and shoes
IPC: A43C13/14
Filed: 1922-08-11
Abstract: 205,264. Nolan, J. J. Aug. 11, 1922. Uppers &c., protectors for.-A protector for the toe cap and sole of a shoe is shaped as shown, the sole portion 5, which is of wedge section, being extended at 10 beneath the sole of the shoe to form an imitation welt. The edges 4 of the protector are thinned down to enable them to be hammered lightly so that they will conform to the shape of the toe cap. Reference has been directed by the Comptroller to Specifications 7413/90, 24299/03, and 28517/08.
Patent GB-219278-A (GB)
Abstract: 219,278. Schaeren, E. July 17, 1923, [Convention date]. Refrigerating, absorption machines and processes for.-In a reversing system the generator-absorber vessel is so formed, or the heating means is so arranged, that only warm solution comes into contact with the generated vapour, and the cold concentrated solution exchanges heat with the warm weak solution flowing from the heater. The generator-absorber preferably comprises two vessels 1, 3 at different levels, the heat being applied to the upper vessel 1, as by electric means 2, Fig. 1, disposed below the working level 15-15 of the liquor; or a gas ring 16, Fig. 3, may be arranged in an annular flue 18 with. adjustable openings 19. the wall of the vessel 1 being provided with gills 17. The lower vessel 3 is cooled by a jacket or coil 12, and communicates with the upper vessel 1 through an interchanger comprising concentric tubes 7, 13. The warm liquor in the upper vessel when deprived of gas sinks down the annular passage 8, and through a pipe 9 to the bottom of the lower vessel, and in its flow warms the strong liquor rising through the inner passage 4. In the arrangement shown in Fig. 3 the warm liquor descends through the central passage. In another modification, the upper vessel is heated by a steam jacket located around the upper part of the interchanger and below the normal liquid level. To facilitate starting of the absorption period, the gases above the liquor may be cooled by a fluid in the jacket 5, Fig. 1, or in a coil 5, Fig. 3, and if the same cooling medium is circulated through the passage 5, 12, it is passed first through the passage 5. The gases pass to the condenser through the outlet 6 and return from the evaporator through a perforated ring 11. The upper vessel and the interchanger may be heat insulated, but the lower vessel is exposed to the cooling influence of the surrounding air. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the provision of means for agitating the liquor to facilitate the starting of the absorption period. This subjectmatter does not appear in the Specification as accepted.
Patent GB-889345-A (GB)
Title: Pyridine derivatives
Inventor: LAWSON ALEXANDER
IPC: C07D213/38
Filed: 1957-07-11
Abstract: The invention comprises compounds of the formula <FORM:0889345/IV (b)/1> in which R1 is hydrogen and R2 is a hydroxyl group or R1 and R2 together constitute an oxo group and R3 is hydrogen or alkyl and acid addition salts thereof, and their preparation by hydrolysing with acid, e.g. HCl, a compound of the formula <FORM:0889345/IV (b)/2> wherein R is an organic carboxylic acid residue, e.g. benzoyl. The intermediate compound of the formula II is made by heating nicotinic anhydride with a compound R.NH.CHR3.COOH, preferably in picoline as a solvent, to produce a compound wherein R1 and R2 form an oxo group and hydrogenating, if the corresponding hydroxy intermediate is desired.  Examples describe the preparation of 3-(2-amino-1-oxopropyl) pyridine and 3-(2-amino-1-hydroxypropyl) pyridine (hydrochlorides) via the intermediate 3-(2-benzoylamino-1-oxo- and 1-hydroxypropyl)-pyridines.
Patent GB-287540-A (GB)
Title: Manufacture of cellulose esters
IPC: C08B3/04
Filed: 1927-08-23
Abstract: 287,540. Fabriek van Chemische Producten. March 24, 1927, [Convention date]. Cellulose carboxylates; preparatory treatment of cellulose.-In the preparation of cellulose formates, acetates, propionates &c., or mixed esters such as cellulose aceto-formate the cellulose is first subjected to a partial formylizing by means of strong formic acid and zinc chloride or other salt having a similar action. The preliminary formylizing may be repeated and the formylizing may be completed in the presence of a catalyst such as hydrochloric acid alone or sulphonyl chloride or phosphorus oxychloride mixed or not with zinc chloride or calcium chloride. In an example, cotton waste (linters) are steeped in concentrated formic acid containing zinc chloride. The formic acid is separated and the partly formylized cellulose is introduced into a mixture of formic acid, hydrochloric acid and zinc chloride at a temperature of -5‹ C.; the product is separated and spun into artificial silk in known manner. To make cellulose acetate or cellulose acetoformate, there is added to the partially formlyized cellulose acetic anhydride or concentrated acetic acid with hydrochloric acid, sulphuric acid or sulphuric anhydride at a low temperature. If pure cellulose acetate is required the reaction is continued with a sufficient quantity of acetic acid and anhydride and for a sufficient time to eliminate the formyl groups completely.
Patent GB-423422-A (GB)
Title: Improvements in knot tyers
IPC: B65H69/04
Filed: 1934-07-30
Abstract: 423,422. Knot-tying devices. ABBOTT MACHINE CO., Wilton, New Hampshire, U.S.A.-(Assignees of Abbott, E. J., and Ring, J. E.) July 30, 1934, No. 22202. Convention date, Sept. 1, 1933. [Class 112] A double-bill knot-tying device joins two strands by knotting each strand about one thickness of the other and pulling the knots thus formed together, Fig. 11. A single thickness of the strand A passes through the knot of strand B and itself forms a knot surrounding a single thickness of the strand B. The two strands are carried up in front of the device, Fig. 2, in notches 54, 55, 49<a>, 49<b>. A guide 48 attached to the frame 30 helps to guide the strands into the upper notches 49<a>, 49<b>. The strands then lie outside the pair of bills 34, 35. The notches 54, 55 guide the strands into pockets 58, 60 of two plate members 57, 59, Fig. 9. The plate 59 is pivoted to the gate 52 at 63 and the two plates are pivoted together at 64. The strand pockets are moved in timed relation with the tying bills to effect knotting by a toothed segment 25. The cam path 27 of the arcuate member 26 carrying the toothed segment 25 is such that during the first 180‹ of rotation of the bills 34, 35, the pockets 58, 60 move to carry each strand into position to be engaged by one of the fixed blades of the adjacent bill and also carries each strand into position to be engaged by the opposite bill outside the partial loop or bight formed by the other strand thereon. Further rotation of the bills permits the tail portions of the strands to slide out of the notches 49<a>, 49<b> over the rounded shoulders of the bills till detained to overlie the two strands connecting the bills. The shear blades of the bills engage these tail portions to clamp and cut them. In this position, around bill 35 there is a loop of strand A grasped by the blades of the bill and having a strand B within it. The same is the case with bill 35, with the strand A in a loop of the strand B. The gate member 52 is then swung outwardly about its pivot 50 by a link 65 to strip the bills and form the knots, the gate being checked by a latch 71. At the end of the operation of the bill-operating shaft 31, the latch 71 is tripped by a pin 73 and a tongue thrusts the gate 52 further outwards to tighten the knots. A further slight rotation of the bills releases the tightened knots and a spring returns the operating trigger and the other parts to normal positions.
Patent GB-308137-A (GB)
Title: Improvements relating to locks and latches for the doors of vehicles
IPC: E05B65/32
Filed: 1928-08-01
Abstract: 308,137. Sleigh, H. L., Cheston, A. S., and Chinn, W. Aug. 1, 1928. Keyhole escutcheons; locks, attaching; latches, preventing operation, of; latches, swinging; striking-plates for latches.-The escutcheon 13 is secured by at least one screw 16 engaging a threaded boss 17 carried by the latch casing 4 and passing through the door 14. The screw is hollow to receive a key 22 which actuates a blocking- device 19 pivoted by a sleeve 21 in the boss 17 and directlv engaging the latch-bolt 1. The device 19 carries a spring plate 24 with projection 26 engaging one of two recesses in the casing. The latch engages a striking- plate 2 and is swung by an inner handle 6 or a follower 9 secured to the outer handle 7. The follower is engaged by a spring 11 and inner blocking device 12.
Patent GB-1020125-A (GB)
Title: Depolariser mixture for electric primary cells
IPC: H01M4/06
Filed: 1964-05-29
Abstract: 1,020,125. Batteries. VARTA PERTRIXUNION G.m.b.H. May 29, 1964 [June 28, 1963], No. 22266/64. Heading H1B. In a depolarizer mixture containing pyrolusite and carbon black, together with polyisobutylene and/or rubber, in which the pyrolusite is bonded with the polyisobutylene and/or rubber, the predominant proportion of the carbon black is present in a free state, i.e. not bonded by the polyisobutylene and/or rubber. This improves the electrolyte absorption after the mixture has been pressed into a plate or other shape. The shaped member of depolarizer mixture is contained in a Leclanche cell and absorbs the sal ammoniac electrolyte without losing its firm cohesion.
Patent GB-186297-A (GB)
Title: Improvements in machines for twisting or doubling yarns
IPC: D01H1/00
Filed: 1921-08-22
Abstract: 186,297. Bowerman, A. A. Nov. 24, 1920, [Convention date]. Doubling and twisting machines; reeling- machines; spindle apparatus; thread guides.- Relates to machines for twisting yarns of the kind comprising a rotatable frame having an axial aperture through which the yarns are passed and are twisted and wound in skein form on a pair of rollers mounted in the frame and adapted to rotate about a axis at right angles to the axis of the frame. The rotary frame 16 comprises discs connected together by vertical bars, and the rollers 32, 34 are mounted upon one of the vertical bars, the lower roller 32 being driven by bevel gearing on a shaft projecting through the lower disc and geared with a shaft 43. The ends, which are drawn from bobbins 11 over a guideplate 13 and roller 15, are initially passed around the rollers and tied above the top roller so as to form a loop which is engaged on opposite sides by rollers 38, 39 to prevent it from bulging during rotation. The guide-plate 13 is provided' with separate notches for each yarn.
Patent GB-384616-A (GB)
Title: Improved device for maintaining suspended articles in position on walls
IPC: A47G1/16
Filed: 1932-08-10
Abstract: 384,616. Hanging pictures. KAAS, C. C. F. H. CLAUSON-, Aggersborggade Lo, Copenhagen. Aug. 10, 1932, No. 22400. [Class 52 (i).] A shock-absorbing buffer for the backs of pictures consists of a thin-walled resilient tube of rubber closed at one end.