baber/WOPTO huggingface dataset:
Patent GB-984720-A (GB)
Title: Improvements in or relating to green molding sand compositions and additives therefor
IPC: B22C1/22
Filed: 1962-03-20
Abstract: 984,720. Mould and core materials. WHITEHEAD BROS CO. March 20, 1962 [March 21, 1961; May 29, 1961 (2)], No. 10726/62. Class B3F. A green moulding sand composition comprises sand, clay, water and an additive comprising a modified starch or a starch derivative, or both, or a methyl cellulose which additive forms a gel structure in the presence of steam and hot water and is insoluble and non-adhesive in cold water. The additive may be a sodium salt of ungelatinized low-substituted starch acid ester derivative containing carboxylic and sulfonic acid groups or a cross bonded core starch of high potential viscosity which gelatinizes at 160‹-212‹ F. and is non-adhesive below 150‹ F. The composition including the modified starch or starch derivative may include a cellulosic material such as methyl cellulose, or hard or wood flours, ground flaxseed hulls, ground residue from corn cob furfural alcohol distillation or other high concentration cellulose materials the individual particles of which have been coated with a high viscosity waterproof wax or petrolactum. Other compositions include seacoal or pitch.
Patent GB-196619-A (GB)
Title: Improvements in locomotive boilers
IPC: F22B13/12
Filed: 1923-04-20
Abstract: 196,619. Schmidt'sche Heissdampf- Ges. April 22, 1922, [Convention date]. Fire-boxes; tubes, water. -The sides of a locomotive fire-box are formed by continuous walls of steamgenerating tubes C, which are supplied with water from the bottom of the boiler barrel A or from an upper drum B by descending-water tubes D shielded from the heat of the furnace by the generating tubes. The generating tubes may be placed in close contact with one another, or they may be spaced apart and formed with ribs closing the spaces between the tubes.
Patent GB-623830-A (GB)
Title: Improvements in or relating to the grinding of rotary cutters
IPC: B24B3/02
Filed: 1947-04-23
Abstract: 623,830. Grinding rotary cutters. BRITISH UNITED SHOE MACHINERY CO., Ltd., ELLIOTT, H. E., PRATT, J. W., FRAMPTON, S. E., and WRIGHT, A. April 23, 1947, No. 10803. Addition to 565,936. [Class 60] A rotary cutter 50, such as a cutter for trimming edges of shoe soles, is secured for grinding, on a sleeve 30 having a tapered portion 31; a knurled collar 34 threaded on the sleeve 30 has joined integrally with it a slotted springy bush portion 35 which, when the collar 34 is screwed down, is expanded by the tapered portion 31 to grip the interior of the bore of the cutter. The sleeve 30 has at its lower end external teeth 32 corresponding in number to the number of teeth on the cutter to be ground, the teeth 32 co-operating with a spline 44 on a rod 42 for indexing the cutter. The sleeve 30 is supported on a post 10 which, together with the rod 42, is carried by a boss 20 supported by an arm 12 pivotally mounted on a trimming machine frame, as described in Specification 540,142, [Group VII]; the boss 20 is normally free to slide lengthwise and crosswise on the arm 12 for adjustment purposes, and has a stem 21 on which is pinned, below the arm 12, a second boss 23 having diametrically opposite lugs 24 to which are pivoted fingers 26. The outer ends of the fingers 26 engage the lower edge of a downwardly extending rim 27 of a circular cap 28 the upper face of which bears against the underside of the arm 12. The inner ends of the fingers 26 are engaged by a flange 51 on a sleeve 29 fitted on the lower end of the stem, a spring 53 acting on the sleeve 29 so that the arm 12 is lightly gripped between the boss 20 and cap 28. The sleeve 29 is provided with a hole 57 for connection by a rod to an operator-actuated treadle (not shown) by which the parts are firmly clamped in. adjusted position. The arm 12 is provided with upper and lower circular slots 43, 45 to receive grinding dust which would otherwise hinder the adjustment of the parts. Specification 609,270 also is referred to.
Patent GB-592496-A (GB)
Title: Improvements in or relating to circuit structures for use with electron discharge devices
IPC: H03F3/28
Filed: 1944-06-05
Abstract: 592,496. High-frequency discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. June 5, 1944, No. 10822. Convention date, April 20, 1942. [Classes 39 (i) and 40 (v)] A high-frequency push-pull circuit comprises two triode valves mounted in axial alignment by means of a cylindrical member 19 engaging external cooling portions 11 of both anodes, portions 11 being cylindrical and having longitudinal fins. Cylinder 19 is divided horizontally and the top half again vertically so that the upper portions 51, hinged at 52, may be raised to allow adjustment or replacement of the valves, which are held in position by means of annular screws 50 clamping the upper and lower portions of cylinder 19 together. Seatings 21 are provided to limit the extent to which the valves may be inserted. The cylinder 19 is rigidly connected to a transverse cylinder 22, through which cooling fluid may be sucked or blown and caused to circulate the cooling portions of the anodes. Annular discs 12, extending through the valve envelope, form grid supports and also provide connections through adapters 28 and conductive fingers 29 to an outer cylinder 27 surrounding the valves and having an aperture through which tube 22 passes. Cylinder 27 is divided horizontally, the halves being hinged together and having a bayonet type locking plate 47,.slidable on slots 48 and clamped by screws 49. The cathodes of the valves are of the directly heated double helix type, the helices being connected together at one end while heater supply connection is made from terminals 36, 37 through metal plates 33, 34 separated by a thin sheet of insulating material to form a byepass condenser to leads 30 to the free ends of the helices. Leads 32 from the common point are connected to a metal cylinder 38 spaced from the plates 33, 34 by insulating blocks 34<1> and mica sheets 35<1> and electrically connected to an outer cylinder 27<1> which is mounted in alignment with cylinder 27 and in high frequency conection therewith by means of flanges 40, 41 separated by a dielectric disc 42. The grid to grid connection, together with the anodes and cylinder 19 provides an anode grid resonator circuit and the cathode grid circuits co-axial line systems in which tuning is effected by means of annular sliding members 39 adjustable by rods 39<1>. Output may be by U-type coupling 55 through an oval aperture 54 in cylinder 27. The structure is motmted on insulating pedestals to a chassis 24.
Patent GB-610905-A (GB)
Title: Improvements in or relating to belting and the manufacture thereof
IPC: B29D29/00
Filed: 1946-04-09
Abstract: 610,905. Belting fabric. DUNLOP RUBBER CO., Ltd., LORD, W., and RIDING, H. April 9, 1946, No. 10826. Addition to 565,496. [Class 142(iv)] [Also in Group XXIV] Belting comprises rubber-impregnated multiply fabric woven from yarn of not more than 420 yds./lb., each ply having not more than 6 picks/in. and weighing not less than 45 oz./sq. yd. The yarn may be plied or cabled and may be cotton, flax, hemp, silk, rayon, or nylon.
Patent GB-119255-A (GB)
Title: Improvements in Calculating Instruments for Nautical Astronomy.
Inventor: KOFFSKEY GEORGE
IPC: G01C21/02
Filed: 1917-07-30
Abstract: 119,255. Koffskey, G. July 30, 1917. Spherical-trigonometry calculators.-Relates to the class of instrument having two segments of similar radial dimensions, hinged together upon a common radius at right-angles and secured to a common intersecting-plate, a detached hand arc of suitable radius being adapted to co-operate with a vernier .upon the periphery of each segment. According to the invention, the intersecting-plate is offset in order that one segment may subtend an angle greater than 90 degrees, and detail improvements are made. Of the two segments G, 7, Fig. 1, graduated in arc upon their peripheries, one has an angle of 90 degrees, while the other segment 7 extends to 120 degrees by virtue of the offsetting of the intersecting-plate 9, 10, 11 which bears the central hinge rod 8 with stays 15, and is extended downwards so that the graduated slots 13, in which vernier-bearing end members 12 of the segments move, may extend over about 145 degrees. Verniers 17 slide upon the segments, and have recesses 22 at their zero points for the engagement of a pin 21, Fig. 4, at the zero of the graduated arcuate hand-plate 19, and of a pin 25 at the zero of a vernier 24 thereon. In use, three known parts of a spherical triangle are set upon a selected three of the four scales provided by the apparatus, of which one scale is to be regarded as the sum of the angles set upon the graduated slots 13 of the intersecting-plate, and an unknown part of the triangle is read upon the fourth scale. Thus in the calculation of latitude from observed altitude of a celestial body, half the body's hour angle is set upon each arc 13, the polar distance upon segment 7, and the corrected zenith distance from observation upon the hand-plate 19. If the hand-plate be then extended from the vernier upon segment 7 to the vernier, adjusted to correspondence, upon the other segment 6, the co-latitude will be indicated thereon. The Specification also describes the calculation of latitude from observed altitude and azimuth; of latitude from observed time of sunrise, determining first the amplitude; and of latitude by meridian altitude.
Patent GB-635285-A (GB)
Title: Improvements in or relating to sugar juice clarifiers
IPC: B01D21/00
Filed: 1947-04-24
Abstract: 635,285. Gravity-separation apparatus. GRAVER TANK & MFG. CO. Inc. April 24, 1947, No. 10964. Convention date, May 1, 1946. [Class 46] A sugar juice clarifier comprises a scum removal compartment 22 on a tank 12, Fig. 2, into which the juice is fed tangentially at a level preferably below a stationary scum removal trough 32 and blades 31, a number of clarification compartments 15 formed by trays 14 separated from the tank wall 12 by an annular feed channel 17, a flocculation compartment 24 below the lowermost of the trays 14. and a vertical rotatable feed tube 23, to which scrapers 26 are attached, communicating by an inlet 34 with the scum removal compartment 22 and discharging into the flocculation compartment 24. A further scraper 35 may be provided in the scum removal compartment, discharging settled solids with the juice through the inlet 34. An auxiliary tray 44 may also be provided in the flocculation compartment 24 to prevent agitation in the region of a sump 42. The juice issuing from the pipe 23 is discharged radially into the flocculation compartment 24 by an arrangement comprising a horizontal flange 36 and a circular deflector plate 37. Some of the clarified juice is withdrawn by a perforated pipe 39 remote from the orifice 36, 37. The remainder of the juice flows up the annular feed channel 17, meeting settled solids swept off the trays by the scrapers 26, and gaining access to each of the clarification compartments 15 by peripheral inlets 18 formed by each tray and an apron 16 depending from the tray next above it, or, in the case of the uppermost compartment, by the tray and the sidewall 12. Clarified juice is withdrawn from the central part of each of the compartments 15 by pipes 19. In the modification shown in Fig. 4. additional annular channels 56 immediately surrounding the tube 23 are provided, down which mud from the trays 14 is discharged by the scrapers 26, which in this embodiment act towards the centre. The rate of flow of this mud is controlled by adjustable vanes 59, which thus also control the cyclic part of the circulation beginning in the channels 56. Lowpressure, low-temperature steam may be supplied to nozzles 55 on a circular tube 53.
Patent GB-559371-A (GB)
Title: Improvements in or relating to reinforced concrete and/or reinforced brick and concrete "pillboxes"
IPC: F41H5/24
Filed: 1942-08-06
Abstract: 559,371. Fortifications. EDWARDS, R. V. Aug. 6, 1942, No. 11021. [Class 20 (i)] A reinforced concrete pill-box comprises a circular wall 2 erected in situ on a concrete base 1 and a mushroom-shaped reinforced concrete hood 3 spaced from the upper edge of the wall and supported by a pillar or pillars 4 disposed within the confines of the wall so as to provide an uninterrupted circular field of fire 5. A single central pillar may be used or a number of pillars spaced around the centre, and in the case of a single pillar this may be provided with lateral wings to afford protection for the personnel against crossfire. The pillars may be of concrete or brick and the space between the wall and the hood may be closed by removable blocks 7 hinged to the upper edge of the wall. The entrance may be through an aperture in the wall or through a well 12 disposed in the centre of the hood. Machiolation 15 may be provided in the hood to allow a gun inside to be elevated for anti-aircraft operations. In a modification, Fig. 6, the inner edge of the wall is inclined and the machiolations 16 are provided in the upper edge of the wall.
Patent GB-958914-A (GB)
Title: Improvements in carburettors for internal combustion engines
Inventor: MENNESSON ANDRE LOUIS
IPC: F02M7/08
Filed: 1962-03-22
Abstract: 958,914. Spray carburetters. SOC. INDUSTRIELLE DE BREVETS ET D'ETUDES. March 22, 1962 [July 17, 1961], No. 11076/62. Heading F1B. In a carburetter having, in addition to the throttle valve 2, an auxiliary throttle 3 operated by the air flow and controlling a fuel metering needle 4 which controls the fuel flow to nozzle 5, all parts of the system connecting the needle 4 to the throttle 3 are subjected to the pressure between the two throttle valves. The needle 4 is connected to the throttle 3 by a plunger 16 and link 18, the pressure in the chamber 17 being that between the throttle valves 2, 3, transmitted through the nozzle 5. The plunger 16 also forms an accelerating pump. The valve 3, pivoted on an eccentric pivot 8, is biased towards the closed position of a counterweight 9 and spring 10. Aerating air may be admitted to the fuel through passage 19. Specification 958,915 is referred to.
Patent GB-551673-A (GB)
Title: Improvements in or relating to locking devices for hydraulic jacks and the like
IPC: F15B15/26
Filed: 1941-09-01
Abstract: 551,673. Pneumatic single-stroke apparatus. SOC. D'lNVENTIONS AERONAUTIQUES ET MECANIQUES S.I.A.M. Sept. 1, 1941, No. 11172. Convention date, May 28, 1940. Addition to 527,225. [Class 8 (ii)] [Also in Groups XXIX and XXXIII] A locking device for fluid operated jacks and the like as described in the parent Specification, in which a piston 1 for controlling mechanism such as the undercarriage of an aircraft is locked in raised position by a spring-pressed plunger 10 which presses claws 9 carried by the operating piston into engaging contact with a slope 16 is constructed with an auxiliary piston 18, which is connected to the plunger 10 and can be moved in an auxiliary cylinder 19 by the admission of air or other fluid through a conduit 24. The claws 9 are thus released to permit the return of the undercarriage by admitting liquid to the conduit 6 and cylinder 1 from a hydro-pneumatic cylinder. The plunger 10 can also be actuated to release the locking- device by increasing the hydraulic pressure in the jack by an emergency control device and thus causing withdrawal of the plunger 10.
Patent GB-399886-A (GB)
Title: Improvements in or relating to flying machines of the helicopter type
IPC: B64C29/00
Filed: 1932-04-19
Abstract: 399,886. Helicopters. PORTER, J. R., 6, Hurst Road, Twyford, and FULLALOVE, A. L., Market Place, Wantage, both in Berkshire. April 19, 1932, No. 11179. [Class 4.] The lifting screw of a helicopter is surrounded by a relatively large hollow ring of circular section and is so disposed that its plane of rotation lies between the median plane of the ring and the upper bounding plane thereof. As shown, a propeller A is surrounded by a ring C of circular cross section having an inner diameter approximately equal to that of the lifting screw and a cross-sectional diameter half of that of the screw. Ring C is connected to mounting of engine E driving airscrew A by means of hollow spokes G connecting with an annular exhaust manifold H. Ring C is of thin metal sheet witha hooped frame and is fitted with valves J for outlet of the exhaust gases. The body comprises portions D<1>, D<2> connected by a vertical pivot D<3> and is provided at its base with an inflated rubber buffer K surrounding a shock-absorbing strut L. A landing frame comprises hinged struts M interconnected by an elastic ligament N. Wheels may be pivoted to the ends of struts M. Steering may be effected by independently adjustable surfaces O controlled by ratchet hand levers P; alternatively a horizontal laterally adjustable hinged boom may be provided having a weight slidable thereon. In a modification the exhaust gases may be led directly from the engine cylinders to ring C, in which case the latter may be provided with cooling pockets receiving air from the screw. In a further modification, the ring may be of fabric and pockets be provided in it so as to inflate the ring by air discharged from the screw. Alternatively the ring C may be inflated with a gas lighter than air or be used as a fuel tank. Rotation of ring C under the influence of the airscrew torque reaction is stated to aid stability. The ring is also stated to give vertical lift due to the reduced pressure of the air on its upper surface caused by the inflow to the screws.
Patent GB-1224373-A (GB)
Title: Photographic film assemblage and method
IPC: G03C8/46
Filed: 1968-03-07
Abstract: 1,224,373. Photographic photo-sensitive film unit. INTERNATIONAL POLAROID CORP. March 7, 1968 [March 31, 1967], No. 11196/68 Heading G2A. A photographic film unit Fig. 1 comprising a photo-sensitive sheet 12 bound in face-to-face contact with a second sheet 14 by a binding strip 24 and having attached at one end a collapsible container 16 containing processing liquid 18 is adapted at the trailing edge 28 to allow the escape of gas entrained ahead of the processing liquid during spreading of the latter from the ruptured container 16 by processing rollers in the processing of the film unit. The sheet 14 may have openings 54 and the sheet 12 may have notches in the trailing edge 28 Fig. 4, the binding strip 24 not being adhered to sheets 12 and 14 in the vicinity of the notches to provide channels through which gas can escape, any excess processing liquid being accomodated in the openings 54. The edge of the binding strip which is folded under to contact sheet 12 at the trailing edge 28 may be long enough for the unadhered channels between the strip and sheet 12 to be squeezed shut by the processing rollers thus preventing the escape of processing liquid.
Patent GB-261613-A (GB)
Title: Improved means for handling sucker rods pump rods or similar apparatus for use in wells
IPC: E21B19/06
Filed: 1926-04-29
Abstract: 261,613. Dunn Manufacturing Co., (Assignees of Smith, N. K.). Jan. 18, 1926, [Convention date]. Borehole apparatus.- Means for handling sucker rods &c. in wells comprise a body with a vertical opening within which the work is supported and an outwardly extending opening communicating with the vertical opening and non-radial thereto. A body A with trunnions 4, 5 for suspension, has a central opening a to receive the rod &c., the opening a leading outwardly through relatively inclined passages e, f. A latch 9, pivoted at 10, is pressed by a spring 12 to lock the rod &c. in place; the latch head is so formed that contact of the work therewith tends to hold the latch in closed position. The upper and lower parts of the opening a are countersunk, and bosses 8 may be provided at these parts; the countersunk parts co-operate with an upset c on the rod &c., the device being reversible. Chambers 16, 17 are formed in the body A.
Patent GB-113558-A (GB)
IPC: A21B1/46
Abstract: 113,558. Pointon, J. E. June 11, 1917. Bakers' ovens.-A conveyer a travels circuitously through both the proving chamber b and the baking even c, so that the dough portions, after being transferred from the conveyers h, l, to the conveyer a are not disturbed until they are removed from the oven c and conveyed away by the conveyer i. The return run of the conveyer is prevented from sagging by supports j. When making cottage loaves or oven bottom bread, the sole plates of the conveyer are heated before they pass into the oven by passing them through a gallery or conduit located between the prover and the oven, wherein they are heated by gas jets or other heaters. Such heating may also be effected entirely, or in part, inside the proving chamber.
Patent GB-257203-A (GB)
Title: Improvements relating to electromagnetic sound reproducing apparatus
IPC: H04R11/00
Filed: 1926-04-30
Abstract: 257,203. Brandes Laboratories, Inc., (Assignees of Gerns, W. H.). Nov. 28, 1925, [Convention date]. Magnetic instruments. - An electromagnetic sound reproducer comprises casings 1, 2 secured by bolts 3 so as to clamp an armature member 10 therebetween and housing pole pieces 6, 7 which carry coils 8, 9 and are secured to permanent magnets 4, 5 mounted adjacent each of the casings respectively. The armature 10, Fig. 4, is apertured at 11, 12, 14. the wide band portion 16 being acted upon by the pole pieces whilst the narrower band portion 15 is provided with side portions 17, 18 adapted to bend so as to grip the hook-shaped end 20 of a rod 21, the other end of which is connected to a sound-reproducing diaphragm.
Patent GB-312762-A (GB)
Title: Improvements in curtain fittings
IPC: A47H5/032
Filed: 1928-04-18
Abstract: 312,762. Cowan, E. W. April 18, 1928. Curtains, suspending.-The operating cord of curtains carried by runners &c. upon a pole &c., is guided, where it changes direction, by flexible tubes, of lead &c. in place of the usual pulleys. In the construction shown, the ends A, B of a single operating cord D are guided in a tube C bent as shown, the vertical part being secured to the window frame by clips. The guide at the return end of the cord consists of a tube E bent to form a loop. Where two cords lie together a twin tube or a. tube with partitions at its ends may be used. The ends of the tubes are preferably bell-mouthed.
Patent GB-633876-A (GB)
Title: Improvements in and relating to synthetic resinous materials
IPC: C08F283/01
Filed: 1947-04-29
Abstract: A mixture of an unsaturated alkyd resin and an ester of allyl or a b -alkyl-allyl alcohol with an aromatic polycarboxylic acid having from one to four halogen atoms attached to the aromatic nucleus, is heated in the presence of a polymerization catalyst. Alkyd resins specified are derived from ethylene, di- and triethylene, and propylene glycols, trimethylene glycerine or pentaerythritol and maleic, fumaric, itaconic or mesaconic acids, the resins being modified, if desired, by cyclohexanol, 2-ethylhexanol, undecanol, phenyl "Cellosolve," butyl "Cellosolve" (Cellosolve being a Registered Trade Mark), diethylene glycol monomethyl ether, or diethylene glycol monoethyl ether.  The alkyl group in the b -alkyl-allyl alcohol may be methyl, ethyl, propyl, isopropyl, butyl, sec.-butyl, isobutyl, amyl, isoamyl, hexyl or octyl groups.  Halogenated acids specified are 4-chlorophthalic acid, 4-bromophthalic anhydride, 3,6-dichlorophthalic acid, 3,6-difluorophthalic acid, 3,4,6-trichlorophthalic acid or anhydride, the corresponding tri-iodo compounds, tetrachloro-, tetrabromo-, tetrafluoro - phthalic acids and anhydrides, and nuclearly halogenated terephthalic, isophthalic or naphthalic acids or anhydrides, benzophenone-2,41-dicarboxylic and diphenic acids. Catalysts which may be used are sodium, barium, lauryl, stearyl, acetyl, lauroyl, stearoyl, benzoyl or acetyl benzoyl peroxides, paracetic acid, ascaridole, linseed oil peroxides, sodium or potassium perborates, persulphates, perchlorates and chlorates. The composition may be used to impregnate cork, pottery, felts, windings of electrical apparatus, and netted fibres, and for coating paper, wood, cloth, glass fibres, Japanese tissue paper and cellulose esters and ethers.  Fillers may be added. Specification 540,168 is referred to.