baber/WOPTO huggingface dataset:
Patent GB-1437452-A (GB)
Title: Manufacture of boat hulls and other hollow articles
IPC: B29C53/58
Filed: 1973-01-30
Abstract: 1437452 Making hollow articles G H HOLTOM 30 April 1974 [30 Jan 1973] 4552/73 Heading B5A A method of constructing a boat hull having a sandwich construction of a P.V.C. foam core and inner and outer glass reinforced polyester layers comprises winding a first glass fibre reinforced polyester layer on to a rotating male mould, winding P.V.C. foam on to the wet glass reinforced polyester layer, then winding a second glass reinforced polyester layer on to the foam layer, the hull thus formed being removed from the mould by cutting. If desired, the method may include the further step of providing an outer winding of polyester resistant film such as "Melanex" (R.T.M.) or alumium foil. Cutting of the hull may be facilitated by provision of an insert on the mould which forms a groove in the laid up sandwich along the desired cutting line. To produce a single deck yacht, the laid up sandwich is cut horizontally around the point of maximum beam, the top deck section lifted clear, the mould removed from the bottom hull section, and the deck and hull sections rejoined. The method may also be used to produce two hulls at once, cutting taking place around the line joining the two hulls. Pipes or containers may also be made by this method.
Patent GB-262989-A (GB)
Title: Apparatus for heat treating raisins or other dried fruit
IPC: A23L5/20
Filed: 1926-02-17
Abstract: 262,989. Marks, E. C. R., (Sun-Maid Raisin Growers of California). Feb. 17, 1926. Treatment by heating and steaming.-Apparatus for use in the treatment of dried fruit, more especially according to the process described in Specification 262,988, [Class 49, Food &c.], comprises two non-communicating cylinders 1, 7, the inner cylinder 1 having a spiral conveyer 2 for agitating and conveying the fruit therethrough, together with means, such as pipes 8, for applying heated vapour to the fruit in this cylinder. Means are also provided for externally heating the inner cylinder 1, for example by passing hot gas between the cylinders 1, 7, and for charging and discharging fruit while keeping the cylinder 1 sealed from the outer atmosphere. In the construction described, raisins are delivered to the cylinder 1 through an airtight gate B, formed of vanes 50 fitted within a housing, and discharged through similar gates D, D'. The conveyer 2, which has perforations 54 to allow some of the fruit to fall through, is driven by a shaft 3, projecting through stuffing boxes 51, from which the revolving gates are also driven, for example by chains 53. The outer cylinder 7 has heat insulation 55. Gas heated to 800' F. passes to between the cylinders through pipe 5, leaving through pipe 6 to a reheater from which it is returned to pipe 5. Steam superheated to about 230-250‹ F. and at about atmospheric pressure is passed into the cylinder 1 through the pipes 8 which have control valves 9. The apparatus is inclined towards the discharge end. The raisins enter the cylinder at about room temperature, and to prevent scorching pass through in a short time, e.g. 12 seconds in a 12 foot container, the heat and vapour having a puffing action thereon. Free vapour is withdrawn through a pipe 10 from the fruit before its discharge.
Patent GB-980535-A (GB)
Title: Sheet feeding apparatus
IPC: B65H43/00
Filed: 1963-02-05
Abstract: 980,535. Delivering sheets. SMITH & WINCHESTER MANUFACTURING CO. Feb. 5, 1963 [Dec. 27, 1962], No. 4613/63. Heading B6H. A web is fed over an electronic flaw detector to longitudinal slitters and between feed rollers to a transverse rotary cutter 26, Fig. 2, the relative speed of the latter and the rollers being adjusted according to the desired sheet length. The sheets are then passed between rapid tapes 28, 30 and 32, 30, past a sensing device 34 and over a table 40 to slow tapes 42, through feed rollers 44, 46 to a stack. Faulty sheets detected by the flaw detector are diverted by fingers 64, Figs. 2 and 3, actuated individually or in groups by solenoids 63, between tapes 68, 72, past a sensing device 34a and over a table 40a to slow tapes and a second stack. The table 40 has an opening 54 periodically aligned with an opening 52 in a roller 48 connected to a source of suction so as to slow down the sheet, which is fed over the table arrested by compressed air directed through an aperture 58. When a sheet is diverted, a longer gap occurs between sheets passing the sensing device 34, and suction is applied to the aperture 58 by means of a valve 62 to act on the trailing edge of a sheet and hold it stationary until the following sheet is overlapping. The apparatus 40a, 48a, 62a acts similarly on the diverted sheets. The apparatus is also repeated laterally to deal with the separate series of sheets cut from the web strips produced by the slitters.
Patent GB-630622-A (GB)
Title: Improvements in or relating to cartons and like containers
IPC: B65D5/06
Filed: 1947-02-18
Abstract: 630,622. Boxes; paper and like bags. VIVIAN, G. S. Feb. 18, 1947, No. 4731. Convention date, Oct. 9, 1945. [Classes 18 and 94(ii)] The lower end closure of a rectangular tubular carton comprises integral and connected extensions of the side walls, the extensions being no longer than half the width of a side wall, and each having a corner 31 removed and being scored to form triangles 16, 22. On each extension a score line 21<SP>1</SP> forming with the cut edge of the corner 31, and the adjacent side of the extension a triangle 46, may be provided. The extensions are folded in rotation, each triangle 46 overlapping in part a triangle 22, the triangle 22 folding back on a triangle 16. The folds of the bottom closure vary from one to three thicknesses of material, over which a plain blank is adhesively secured. The upper end of the carton is closed by known means. The carton may be of metal foil, plastic sheet, or cardboard or paper which may be waxed. Heat-sealing material may be used. Specification 516,527 is referred to.
Patent GB-544867-A (GB)
Title: Improvements in or relating to secateurs or pruning shears
IPC: A01G3/02
Filed: 1941-04-10
Abstract: 544,867. Secateurs. ROBBINS, F. April 10, 1941. No. 4774. [Class 30] Secateurs have a single blade 1 secured to one handle 2 and engaging between a pair of jaws 5 carried by the other handle 4, handle 2 having a thumboperated catch 7 engaging a notch 9 in handle 4. Blade 1 may be detachable and jaws 5 formed by a slotted blade, the slot being preferably tapered and formed by two inserted plates. The pivot 3 is eccentric to the cutting edges. Handle 4 carries a pair of blade springs 10a, one of which presses on the handle 2 or its blade 1.
Patent GB-525139-A (GB)
Title: Means for suspension of rail vehicles
IPC: B61F5/30
Filed: 1939-02-14
Abstract: 525,139. Railway vehicle undercarriages. MICHELIN & CIE. Feb. 14, 1939, No. 4890. Convention date, April 15, 1938. [Class 103 (vi)] In a rail vehicle fitted with pneumatic-tyred wheels, the wheels or axles are mounted in the bogie frame or vehicle underframe by means of resilient members, such as rubber sleeves, which permit only a limited vertical displacement between the axles or wheels and the frame so that if any tyre should become deflated, it will not be pressed into contact with the rail, but will have its load transferred to the remaining wheels. In the construction shown in Fig. 3, the ends of each axle are secured to inner rings 4, between each of which and an outer ring 7 is disposed an annular block of rubber 6, the outer ring 7 being provided with flanges 9 for securing it to the bogie frame. In a modification, Figs. 4 and 6, the axle is engaged in a bearing 13 at the centre of a bracket 14, which is provided at each end with a rubber sleeve 17 and inner ring 16 to receive horizontal pins 19 at the lower ends of brackets 18 depending from the frame 1. Where bogies are employed, the vehicle body is preferably mounted thereon by means of interposed springs. Specification 374,412 is referred to.
Patent GB-590670-A (GB)
Title: Flexible shafts
IPC: F16C1/06
Filed: 1945-02-27
Abstract: 590,670. Flexible shafts. FLETCHER, R. W. J. Feb. 27, 1945, No. 4917. [Class 80 (ii)] In a flexible shaft of the kind comprising concentric wire or strip helices adapted to rotate together, with or without a central core, one or more of the elements do not transmit torque but serve only to reduce the tendency of the shaft to buckle under load. As shown, an outer element 2 secured by soldering, brazing, swaging or other means to a driving terminal 5 revolves within a stationary flexible casing 6 and transmits the driving torque, whilst an inner element 1 is free from the terminal 5 and axially spaced therefrom to prevent flexure jamming. Alternatively, the outer element may be free and the inner torque-transmitting or inner and outer free elements may enclose a torque-transmitting element. Where a central core is used, this may be either torque-transmitting or free, and may consist of one or more wire rods or, according to the Provisional Specification rubber or rubber and wire structures. Lubrication between the various element may be provided. Specification 549,874 is referred to.
Patent GB-538776-A (GB)
Title: Improvements in and relating to steam boilers and furnaces therefor
IPC: F22B9/12
Filed: 1940-03-16
Abstract: 538,776. Boiler furnaces. WALKER, A. March 16, 1940, No. 4943. [Class 51 (i)] [Also in Group XIII]. A multi-tubular boiler with lower and upper rests of smoke tubes 17, 16 is mounted on a fire-brick furnace the rear end of which constitutes a combustion chamber 18 from which the furnace gases pass through the lower set of smoke tubes to a smoke box and back through the upper set of smoke tubes to an uptake 20. The furnace comprises a number of furnace chambers with arched roofs and the walls of the chambers are cooled by air or water tubes 7 connected to bottom headers 4.
Patent GB-556283-A (GB)
Title: Improvements in agricultural drainage
IPC: E02F5/10
Filed: 1942-04-15
Abstract: 556,283. Trenching ploughs for laying pipes. WATSON, G. April 15, 1942, No. 4947. [Class 6 (i)] Apparatus comprising a trenching plough 25 and pipelaying guide 23 is pivoted to the frame 2. Plates 6, 5 fixed below and above the rear end of the frame longitudinals carry the pivot spindle 18 and adjusting and sustaining gear 11, respectively. Side plates 19, pivoted on the spindle 18, prevent the soi from obstructing the pipelaying operation, and support between them the pipe-laying conduit 20 which is vertical in its upper portion and bent in its lower portion to its end beyond the pivot 18. Plates 26, 26<SP>1</SP> project in front of and behind the conduit 20. The front plate carries a spirit level, the rear plate has a rack 28 pivoted along its top edge. A ring 51 on the conduit 20 may be attached to a haulage cord 50, the pulling of which tilts the plough &c. downwards into the ground. To draw these members from the ground the cord is passed around a pulley 49. Specification 546,549 is referred to.
Patent GB-651893-A (GB)
Title: Improvements relating to reciprocating engines
IPC: F01B9/02
Filed: 1948-02-20
Abstract: 651,893. Balancing of engines. MANLEY, G. E. Feb. 20, 1948, No. 4994. [Class 122(iii)] In an engine of the type in which the piston or each piston moves with a simple harmonic motion and is connected to a crank by a crosshead, rotary balancing masses are arranged so that the centrifugal forces associated with them act in opposition to the momentum of the reciprocating parts when the latter are at either end of their movement, and act in mutual opposition when the reciprocating parts are in the mid position of their movement. The pistons 11 of an opposed two-cylinder engine drive, through a slotted crosshead 12, a crankpin 14 which connects crank cheeks 15 situated on either side of the crosshead 12 and fitted with balance weights 16 whose combined centrifugal force is equal to one half of the momentum exerted by the reciprocating assembly when at the ends of its stroke. Each crank cheek 15 is formed with a main shaft section 17 carrying thereon, at equal distances from the axis of reciprocation, pinions 18 each associated with a group of oppositely disposed and equal pinions 19 carrying equal and similarly-phased balance weights 191 whose combined centrifugal force is also equal to one half of the momentum exerted by the reciprocating assembly when at the ends of its stroke. The weights 191 and 16 are phased so that their centrifugal forces act in the same direction and in opposition to the momentum of the reciprocating assembly when the latter is at either end of its stroke, Fig. 2; and in opposite directions when the assembly is at mid-stroke, Fig. 1. Any number of balancing weights 191 may be used.
Patent GB-939638-A (GB)
Title: Improvements in and relating to locking devices for windows and the like
IPC: E05C9/02
Filed: 1962-02-09
Abstract: 939,638. Multiple fastenings. A. STRENGER, K. STRENGER, and L. STRENGER, [trading as H. STRENGER [Firm of]]. Feb. 9, 1962 [June 8, 1961], No. 5021/62. Class 44. A fastener for securing a casement window comprises a cam 3 bearing a prong 3b mounted in an aperture 1d of a support-plate 1 and between cover-plates 4, 5. The prong 3b engages with studs 8, 9 provided between slidable bars 10a, 10b, which are pivoted to bars 12, 13, the bars 12, 13 being connected to bolts (not shown) for the window. The cam is rotated by a knob or handle which is secured to the support plate by screws which engage sockets 14 located between the plates 4, 5.
Patent GB-576444-A (GB)
Title: Improvements in methods of wireless beam propagation
IPC: H01P3/20
Filed: 1941-04-18
Abstract: 576,444. Directive wireless signalling. DOWSETT, H. M. April 18, 1941, No. 5026. [Class 40 (v)] Radiation from a dipole is reflected as a beam of rotational symmetry and restricted spread to a terminal reflector which gives it the required spread. The reflector system may be regarded as a radio link between two sections of the transmitter. In Fig. 1, the dipole AOB is at one focus and along the axis of a combined spherical and elliptical reflector c, a, b. Radiation falling on the spherical part ca is reflected back so as to be in phase with the radiation falling on the elliptical part a, b, which is focused at P and collected by a double elliptical reflector f, d, e which focuses it at Q and R. In the final reflector g, h, k, the radiation is brought to a focus at S and then diverged at an angle of 45 degrees. In Fig. 2, the radiation from AOB falling on the spherical part ac is reflected back so as to be in phase with that falling on the elliptical part ab, which is focused at P and received by a parabolic reflector dd which transmits it as a hollow cylindrical beam X passing through an aperture in the back of reflector ac. The direction of the beam may be varied by a plane reflector, and the generator and a tube containing part of the reflecting system may be placed underground, the final reflector being above ground level. Communication between the two ends of the link may be effected with the aid of pick-up receiving coils inserted in the diverging beam from the terminal reflector, Fig. 4 (not shown).
Patent GB-872270-A (GB)
Title: Device for grinding, brushing and polishing workpieces, for example eating implements
IPC: B24B41/06
Filed: 1959-02-13
Abstract: 872,270. Grinding and polishing. GULDSMEDS AKTIEBOLAGET I STOCKHOLM G. A. B. Feb. 13, 1959 [Feb. 20, 1958], No. 5122/59. Class 60. A device for grinding, brushing and polishing a plurality of similar, elongated workpieces e.g. eating implements, comprises a holder adapted to receive between end walls the workpieces at its peripheral boundary with their maximum dimensions lying in the direction of the generatrices of the holder, the workpieces being clamped between the end-walls. In the embodiment of Fig. 1, forks 11 are held between resilient end plates 12, 13 the edges of the plates being suitably shaped to engage the opposite ends of the implements. The shaped core 10 of the holder may be of wood, light metal, or other suitable material and the plates 12, 13 are so attached to the core that at least one may be removed for loading; when the edges of the implements are to be ground or polished they are packed closely to provide mutual support, but when surface finishing is required the implements are spaced around the periphery of a suitably shaped core, as shown in Fig. 5, and are located circumferentially by equally pitched recesses formed in the end plates 23, 24 and are retained therein by elastic rings 33. For workpieces of varying thickness e.g. knives or knifehandles the core 10 may be grooved longitudinally to provide lateral support at their thickest part and one end plate may have pins to engage cavities formed in the ends of the knife handles. When one end plate is flanged as at 12a, Fig. 1, it may be provided with a loading gap 29, Fig. 7, and a slotted, gap-filling, slide 30 to facilitate the loading of implements for edge treatment. In a further embodiment, Fig. 6 (not shown), the end walls of the holder may be slotted to provide resilient tongues extending beyond the core periphery and having perforations or recesses for receiving the ends of the workpieces. The holder may be rotated and traversed by hand in contact with a grinding brushing or polishing wheel, or it may be mounted in a suitable stand and motor-driven.
Patent GB-1255763-A (GB)
Title: Process for producing developer for electrostatic latent images
IPC: G03G9/13
Filed: 1970-02-03
Abstract: 1,255,763. Electro-photography. FUJI PHOTO FILM CO. Ltd. Feb.3, 1970 [Feb.5, 1969], No.5136/70. Heading G2H. In the production of a printing plate using a dispersion of gelatine in carrier liquid as electrostatic latent image developing agent, the gelatine is produced in finely divided form by (a) adding an alcohol to a 1-20% aqueous solution of gelatine in an amount insufficient to cause precipitation, (b) dispersing the solution by ultrasonic stirring in an organic solvent which is miscible with water but is a non-solvent for gelatine to form a dispersion of gelatine particles, (c) removing the particles by centrifuging, and (d) washing with further solvent. The proportion of alcohol to gelatine solution may be 0À1-3. The alcohol may be methyl, ethyl or isopropyl alcohol or glycerine. The proportion of solvent to alcohol/gelatine solution may be 10-300. The organic solvent may be dimethyl or methylethyl ketone or ethyl alcohol. It may contain a vegetable oil or a surface active agent. The proportion of gelatine based on carrier liquid may be 0À001-5%. The carrier liquid may be cyclohexane, kerosene, gasoline, iso-octane, heptane, hexane, or a chlorofluorohydrocarbon. It may include soybean oil as dispersing agent and a varnish produced from vegetable oil and rosin-modified phenolformaldehyde resin as fixing agent. The photo-conductive material may be ZnO or Se-Te. A developing electrode may be employed. After hardening of the gelatine, ZnO may be removed from the developed plate with acetic acid.
Patent GB-541404-A (GB)
Title: Improvements in or relating to the heat treatment of cast iron or cast iron alloys
Filed: 1940-03-20
Abstract: 541,404. Heat treating cast iron and alloys. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). March 20, 1940, No. 5155. Drawings to Specification. [Classes 72 and 82 (i)] In the heat treatment of cast iron, containing at least 3.0 per cent. of carbon, the iron is heated to a temperature above its cortical range e.g. 1550‹F.-1700‹F. for 15 minutes to 2 hours, preferably not exceeding 30 minutes, quenching in a bath at a temperature of 350-750‹F., e.g. 600‹F. preferably for 15-30 minutes and then cooled to room temperature. The iron may contain 1.0-2.5 per cent. of nickel and also 1.0-2.0 of silicon, 0.3-0.75 of manganese, 0.07-0.15 of sulphur and 0.2-0.5 of chromium. The quenching bath may comprise 53 per cent. of potassium nitrate, 7 of sodium nitrate and 40 of sodium nitrate. Specification 245,196, [Class 72], is referred to.
Patent GB-1011961-A (GB)
Title: Sealing compositions and their use in container closures
IPC: C08K3/00
Filed: 1964-02-06
Abstract: Sealing compositions comprise a finely-divided vinyl chloride resin, a liquid non-volatile plasticizer therefor in amount of 2 to 10 parts by volume per part of resin, and a finely divided filler in amount of 0.5 to 1.5 parts by volume per part of said plasticizer, the filler being such that a homogenous mixture of 1 part thereof with 1.97 parts by volume of dioctyl phthalate and 0.03 parts by volume of oleic acid has a Brookfield viscosity of not more than 25,000 c.p.s. measured at 26.7 DEG  C. and 60 revolutions per minute using a No. 4 spindle.  The resin may be polyvinyl chloride or a copolymer of vinyl chloride with acrylonitrile, vinylidene chloride, vinyl acetate or dialkyl maleates.  The plasticizer may be a dialkyl phthalate, alkyl phthalyl alkyl glycolate, dialkyl ester of an alkane dicarboxylic acid, trialkyl or triaryl phosphate, acetyl trialkyl citrate, fatty acid ester, epoxy compound or polyester.  Secondary plasticizers and extenders, e.g. oleic acid, white oil and epoxidized soya bean oil, may also be present.  Specified fillers are barytes, clay, talc, asbestine, whiting, alpha floc, diatomaceous earth, indulin, carbon black, iron oxide and titanium dioxide.  The compositions may also comprise stabilizers, e.g. zinc and calcium stearates; paraffin and microcrystalline waxes; wetting agents, e.g. polyethylene glycol fatty acid esters; antioxidants, e.g. N,N1-di-2-naphthyl-p-phenylene-diamine; and blowing agents, e.g. azodicarbonamide. The compositions may be applied to container closures or to closure blanks before forming, and gelled to produce sealing gaskets. Examples describe sealing compositions comprising polyvinyl chloride and (1 to 15) dioctyl phthalate, oleic acid and calcium carbonate; (16) dioctyl phthalate, oleic acid, calcium carbonate and talc; (17) dioctyl phthalate, oleic acid, asbestine and kalolin; (18) dioctyl phthalate, white oil, oleic acid, calcium carbonate, calcium oxide, carbon black, iron oxide, paraffin wax and N,N1-di-2-naphthyl-p-phenylenediamine; (19-22) dioctyl phthalate, glycol adipate, oleic acid and calcium carbonate; (23) glycol adipate, oleic acid and calcium carbonate; and (24) dioctyl phthalate, oleic acid and calcium carbonate.
Patent GB-1391238-A (GB)
Title: High-pressure metering device
IPC: B24B57/00
Filed: 1973-02-02
Abstract: 1391238 Hydraulic reciprocating pump W WESTENBERGER 2 Feb 1973 [3 Feb 1972 26 Aug 1972] 5273/73 Heading F1A A high-pressure metering device 1 for paste comprises a reservoir 3 with an inlet 6 having a non-return valve 5 and an outlet 7 controlled by a needle valve member 13 which is opened in dependence on the pressure in reservoir 3, pressurization of the paste being produced by the rod 31 of a fluid-operated single-acting piston 30. The piston stroke is determined by an adjustable stop 36, this stroke governing the amount of paste discharged through outlet 7. Fluid enters cylinder 29 through passage 38 and the piston 30 moves down such that the pod end 39 pressurizes paste in the reservoir 3. The increase in pressure acts on that part of the conical head 16 of the needle 13 to move it away from its seat 15 so that a quantity of paste is metered to outlet 7. The needle may be inclined to the piston axis, and the needle held in special through-flow bearing means in an intermediate member to which an outlet spray nozzle is attached, Figs. 2 to 5 (not shown).