baber/WOPTO huggingface dataset:
Patent GB-1076106-A (GB)
Title: Improvements relating to mops
IPC: A47L13/254
Filed: 1965-02-22
Abstract: 1,076,106. Mops. L. SELLESI. Feb. 22, 1965 [March 7, 1964], No. 7502/65. Heading A4F. A unit comprising a mop head 9 clamped between serrated flanges 7 (Fig. 1, not shown) on a supporting plate 6 and a plate 8, having projections 10 engaging in holes in the plate 6, is detachably mounted on a body 1 receiving the mop handle by the engagement of catches 5 on the plate 6 in slots 4 in the body 1. In place of a stranded mop head 9 a sponge mop head 21 (Fig. 3, not shown) may be provided.
Patent GB-612605-A (GB)
Title: Improvements in or relating to coating compositions containing thermoplastic resins
IPC: C09D157/00
Filed: 1942-06-03
Abstract: Coating compositions which on application to metal surfaces stratify into two layers each comprising a layer of one resinous constituent of the composition and the resin having more intense polarity being concentrated at the metal interface, comprise a solution in a volatile solvent of (a) a vinyl alcohol halide, or ester, or a lower aliphatic ester or nitrile or amide of acrylic or methacrylic acid polymer or copolymer, and (b) a non-oil modified, alkaline condensed, bifunctional, lower alkyl or lower aryl-substituted phenol-aldehyde resinoid of greater molecular polarity than (a) but compatible in solution therewith.  The phenolic resinoids in question are alkaline condensed alkyl- or aryl-substituted phenols having only two reactive positions available in the benzene ring, e.g. o- and p-cresol, p-phenyl phenol, xylenols other than symmetrical xylenols.  Molar ratios of aldehyde/phenolic compound should lie within 1.1/1 and 1.6/1 and in preparation heating times under reflux should be 3-7 hours and steam distillation for 30-120 mins.  Proportion of (b) in the mixture may range from 1-40 per cent, but 20 per cent is preferred.  A general formula for the monomers used in (a) is CH2=CRX and a list is given of radicals suitable for R and X.  Preparation of the phenolic resinoids.-(1) 2 moles. o-cresol and 2.4 moles. formaldehyde are reacted in presence of 18 gs. 28 per cent ammonia and at 200-205 DEG  F.  The mixture is refluxed for 6 hours, and the upper aqueous layer separated, the resinous layer being steam distilled until clear and allowed to solidify or dissolved in acetone, methyl isobutyl ketone, isophorone, cyclohexanone or other ketone.  Examples (2) to (7) describe the production of similar resins from amyl phenol, 1 : 4 : 3-xylenol-p-cresol mixture, o-cresol and a 210-215 DEG  C. xylenol cut, p-phenyl phenol, and p-(o-sec. butyl phenyl) phenol.  Preparation of the mixture.-A solution in xylol and methyl n-amyl ketone of a vinyl chloride (87 per cent) -vinyl acetate (13 per cent) copolymer is added with stirring to the resinoid of example (1) dissolved in xylol and methyl n-amyl ketone and the solution thinned to spraying consistency is sprayed on to tin plate and baked.  Similar solutions are made up from vinyl chloride (75 per cent) methyl acrylate (25 per cent) copolymer and the resinoid of example (4); vinyl chloride (80 per cent) methyl methacrylate (5 per cent) copolymer and the resinoid of example (2).
Patent GB-391583-A (GB)
Title: Improvements relating to convertible furniture
IPC: A47C17/14
Filed: 1932-03-15
Abstract: 391,583. Bed-settees ; rests. JONES, G. M. G., 43, Great Marlborough Street, London. March 15, 1932, No. 7723. [Class 52 (ii).] In a bed-settee the arms of the settee move outwards when the folding mechanism is moved to the bed position, and increase the effective width of the bed. The arm 4 of the settee is connected by a spring 9, Fig. 2, to a bar 10 moving in a guide-plate 12 on the framework of the chair. A hook 13 on the bar engages the under part of the seat 2 so that when the framework is returned to the folded settee position, the bar is removed downwards and pulls the arms 4 back into position. In Figs. 5 and 6, the arms and back are interconnected, a plate 15 being secured to the back 3 and engaging by means of a lug 18 and a spring catch 19, a plate 16 secured on the arm 4. When the back is raised, the lug 18 is lifted out of engagement with a slot 17 in the plate 16, and the spring catch 19 rides up the inclined lower edge to force the arms outwards about its hinges. In a modification (not shown) an inclined rail is used. Fig. 9 illustrates a method in which, when the back 3 is raised the bent part 27 of the lever 25 engages underneath the spring 28 to force the arm outwards. Restricted hinged plates may be used instead of the lever 25, and spring catches engaging recesses in the fixed framework may be used to retain the arms. Specification 363,210 is referred to.
Patent GB-665146-A (GB)
Title: Improvements in or relating to the preparation of a new unsaturated ketone
Inventor: HEILBRON SIR IAN MORRIS
IPC: C07C45/71
Filed: 1949-03-22
Abstract: The invention comprises 6-methylocta, 3 : 5 : 7-trien-2-one represented by the structural formula <FORM:0665146/IV (b)/1> an unsaturated ketone of formula C9H13O, having the refracture index ( <FORM:0665146/IV (b)/2> ) 1.6025, light absorption max. 304 mm , E1 per cent1 cm. 2,400 and e  32,600.  This compound is prepared by reacting 3-methylpenta-2-4-dien-1-ol with acetone in the presence of aluminium tertiary butoxide.  Preferably an excess of acetone or an organic solvent inert under the reaction conditions is present as diluent, e.g. benzene, petroleum ether, dipropyl ether, dibutyl ether or mixtures of two or more of these solvents, and the process is carried out in an inert atmosphere.  In an example 6-methylocta-3 : 5 : 7-trien-2-one is prepared by refluxing a solution containing 3-methylpenta-2 : 4-dien-1-ol, aluminium tert-butoxide, acetone and benzene under nitrogen, pouring the product into dilute sulphuric acid and separating and fractionating the organic layer.  The starting material is prepared by shaking with dilute sulphuric acid and a trace of hydroquinone under nitrogen 3-methylpenta-1 : 4-dien-3-ol which is prepared in turn by hydrogenating 3-methylpenta-4-en-1-yn-3-ol in methanol using a palladium-charcoal catalyst.
Patent GB-470653-A (GB)
Title: Improvements in optical systems for colour photography
IPC: G02B27/10
Filed: 1936-03-16
Abstract: 470,653. Colour kinematography. HARRISON, W. H., and HARRISON, E. C. March 16, 1936, No. 7806. Convention date, March 20, 1935. [Class 97 (i)] A light-dividing system comprises a transparent plate having part of its rear surface semi-reflecting and part of its front face full reflecting so that light transmitted through the part of the front face which is not reflecting will be partially reflected to the full reflecting portion of the front face and thence emerge from the plate ; a system of colour filters may be so arranged with respect to the plate and the film as to prevent the formation of "ghost " images. As shown in Fig. 1, light from the object 21 is partially reflected at the semi-reflecting surface 17 of the plate 16, one beam R passing directly to the film 11 and the other beam U being reflected to a different area of the film by the full-reflecting inclined face 18 of the plate. Colour filters 19, 20 respectively red and green are placed adjacent the plate, and corresponding filters 12R, 13G respectively red and green are placed adjacent the film so that light from the beams R or G which falls on the filters 13G or 12R is absorbed thereby and does not reach the film. For three-colour photography a parallel-sided plate may be used and the beam divided by two internal reflections instead of one, each divided beam being focused on the film by a separate lens through a filter system similar to that shown in Fig. 1. The resultant positive film may be projected by an apparatus similar to that used for taking, the light-dividing system being used to superimpose the images on the screen, the arrangement of filters preventing any colour-fringing. According to the Specification as open to inspection under Sect. 91 the dividing system may comprise two parallel plates 16, 17, Fig. 5 (Cancelled) held apart by suitable means, the upper portion b<1>-c<1> of the plate 16 being full reflecting and the lower portion a-b of plate 17 being semi-reflecting so that separate images of the object 21 are produced on the film 11 by the lenses 26, 27. A green filter 20 placed between the plates 16, 17, and a red filter 19, are provided, corresponding filters 13, 12 being placed adjacent the film. In a modification the dividing means may comprise only the portions a-b and b<1>-c<1> of the plates supported alone. It is also stated that the described arrangement of filters may be employed with any suitable light-dividing system either for photography or for projection. This subjectmatter does not appear in the Specification as accepted.
Patent GB-453520-A (GB)
Title: Improvements in or relating to signal or alarm devices for use on vehicles or other machines
IPC: B60R16/023
Filed: 1935-03-13
Abstract: 453,520. Counting apparatus ; odometers. JOYCE, A. E., 250, Cooden Drive, Bexhill-on-Sea. March 13, 1935, No. 7830. [Classes 106 (i) and 106 (iii)] A wheel 6 driven from a vehicle or machine has pins 21, which, at the end of a predetermined distance or a predetermined number of revolutions, rock an arm 19 connected by a link 18 to a latch 11 which releases a lever 12 carrying a contact 10 which is thus brought into engagement with an insulating drum 8 on the spindle of the wheel 6. Shortly afterwards a contact 9 on the drum 8 engages the contact 10 to complete the circuit to a lamp 22 which thus indicates that certain operations (such as changing the engine oil) should be effected. A contact drum rotated once at every mile causes the lamp to flash until the circuit is broken by resetting the arm 12. The wheel 6 may be driven from a mileage meter or may be one of the wheels of a mileage meter or speedometer.
Patent GB-434463-A (GB)
Title: A device for holding cigarettes during smoking
IPC: A24F13/22
Filed: 1935-03-14
Abstract: 434,463. Cigarette holders. PAGESMITH, S., 56, Wellington Road South, Hounslow, Middlesex. March 14, 1935, No. 7905. [Class 130] To enable cigarette ends to be smoked instead of being thrown away, a short tube 4 is used to connect the end to a fresh cigarette. The tube is surrounded by a wire coil 5 the ends of which are twisted together to carry a fingerpiece 7. If desired a perforated disc may be placed in the tube 4 to prevent lighting of the fresh cigarette.
Patent GB-591602-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F9/013
Filed: 1945-03-29
Abstract: 591,602. Tubular heat exchangers. BABCOCK & WILCOX, Ltd., and EVANS, R. H. March 29, 1945, No. 7973. [Classes 64 (i) and 64 (iii)] A heat exchanger, e.g., an economiser, comprises a bank of tubes constituted by tubular heat exchange elements each formed by a tube bending process and each including tube lengths connected in series by return bends so arranged that the tube lengths are in staggered relationship, the elements being assembled with tube lengths of adjacent elements alternating in a tube row in which those tube lengths are aligned or substantially aligned, so that the pitches between the tube lengths in the row are less than the pitches between the tube lengths extending from the same return bends. In the form shown, a pair of tubular elements each includes tube lengths disposed in two parallel rows with tube lengths 5..10 of one element alternating in each row with tube lengths 11..16 of the other element. The return bends 17, 18, 19 at one end of one element are inclined in one direction, and the bends 20, 21 at the other end in the opposite direction, relatively to the rows of tube lengths and connect adjacent tube lengths in the different rows. The return bends 22..26 of the other element are oppositely inclined relatively to the neighbouring return bends of the first element, and the return bends at opposite ends of one of the elements are respectively within and without the neighbouring return bends of the other element, so that each element may be removed longitudinally without disturbing the other element. Plate screens, apertured for the passage of the tube lengths and divided into sections along the centre lines of the tube rows, are arranged' near the ends of the tube rows to position the tube lengths and shield the return bends. In a modification, the return bends at each end of an element are parallel to one another, and the tube lengths of each element are interspaced by those of elements on opposite sides.
Patent GB-472170-A (GB)
Title: Manufacture of substitution products of diphenylene oxide
IPC: C07D307/91
Filed: 1936-03-17
Abstract: The 2-nitro-3-alkoxy derivatives of diphenylene oxide are prepared by the action of nitrating agents upon 3-alkoxy diphenylene oxides which may also contain substituents in the 5-, 6-, 7- or 8-position.  The starting materials are obtainable by the process described in Specification 470,021.  By reduction of the 2-nitro-3-alkoxy compounds in known manner, the corresponding 2-amino-3-alkoxy compounds are obtained.  Examples are given of the preparation of (1) 2-nitro-3-methoxy-diphenylene oxide from 3-methoxy-diphenylene oxide, obtained by methylation of the corresponding hydroxy compound; (2) 2-nitro-3-ethoxy-diphenylene oxide from 3-ethoxy-diphenylene oxide, obtained by ethylation of the corresponding hydroxy compound; (3) 2-nitro-3-methoxy-7-methyl-diphenylene oxide from 3-methoxy-7-methyl-diphenylene oxide, obtained by methylation of 3-hydroxy-7-methyl-diphenylene oxide; (4) 2 - nitro - 3 - methoxy - 7 - chloro - diphenylene oxide from 3 - hydroxy - 7 - chloro - diphenylene oxide by the same steps as in (3); (5) 2-nitro-3 : 7-dimethoxy-diphenylene oxide from 3 : 7-dimethoxy-diphenylene oxide, obtained by methylation of the 3 : 7-dimethoxy- or the 3-hydroxy-7-methoxy-derivatives; (6) 2-nitro-3-methoxy-6-methyl-diphenylene oxide from 3-hydroxy-6-methyl-diphenylene oxide.  The preparation of the corresponding amino-derivatives is described in each case.
Patent GB-790860-A (GB)
Title: Improvements in or relating to electric capacitors
Inventor: SHEN TZU EN
IPC: H01G4/32
Filed: 1955-03-18
Abstract: 790,860. Capacitors; anodising aluminium. BRITISH DIELECTRIC RESEARCH, Ltd. March 19, 1956 [March 18, 1955], No. 8000/55.. Classes 37 and 41. Dielectric stress at the edge of a wound or stacked capacitor using an anodised aluminium foil electrode 1 is reduced by rounding the edge 4 by formation of porous oxide 2. Deposited on the anodised dielectric 3 is a second electrode 6 which is in contact with a metallized insulating spacer 8. The second electrode 6 and the spacer 8 are staggered relative to the foil 1 thus enabling a soldered connection to be made to the bare foil edges 5 and a sprayed metal connection to the spacer 8. If the second electrode 6 is extended over the porous edge 2, the spacer 8 may be omitted. According to the Provisional Specification magnesium may be substituted for aluminium foil. Anodising aluminium. A 25Á. foil 1 has its edge 4 rounded by formation of a mass of porous oxide 2 in an anodic bath containing a 5-10 per cent aqueous solution of oxalic acid at a current density of 20 mA. per sq. cm. of immersed foil for 30 mins., giving an edge 15 Á thick. Alternative methods of limiting area treated include : dipping one end of a roll of foil into the electrolyte; passing the foil around an inclined roller, the lower end of which is immersed in electrolyte; or by temporarily masking the greater part of the foil with lacquer or wax. The anodised dielectric film may be formed in a solution of 60 grams boric acid in 1 litre water after a possible overall formation of a thin porous layer in oxalic acid. In an alternative process, a double width foil has its edges formed in oxalic acid followed by overall anodising before splitting longitudinally to give a bare edge 5.
Patent GB-565940-A (GB)
Title: An appliance holder for use by disabled persons
IPC: A45F5/00
Filed: 1943-05-20
Abstract: 565,940. Appliance holders for disabled persons. SEAGRIM, A. H., and RONLEZ, E. L. J. May 20, 1943, No. 8001. [Class 81 (ii)] A tool &c. holder for use by a person with a disabled or amputated arm, comprises an elongated body member 1 having an enlargement 2 at one end and means, e.g. a screwed bush 3 and clamping screw 4, for holding a tool &c. 14, and means, e.g. an elastic strap 10 carried by the member 1, whereby it may be retained beneath the armpit of the person so that the enlarged end 2 beds against the forearm and body of the person to prevent the holder from shifting backwards. The body 1 is preferably of circular cross-section throughout its length and is bored at 6 to accommodate the tool &c. The bore of the bush 3 is preferably flattened on its surface opposite to the screw 4 and also provided with a groove of small radius to effect the efficient clamping of small-diameter tools. The holder may incorporate a socket member having spring-pressed balls which engage in recesses formed in the stem of the appliance, a spring-pressed lever engaging in a groove therein. Locking is effected by a milled sleeve. The socket may be provided with a universal movement and suitable locking means therefor.
Patent GB-180114-A (GB)
Title: Improvements appertaining to slabs of non-conducting material for preventing the radiation of heat from steam-boilers and other heated bodies
IPC: F16L59/02
Filed: 1921-03-15
Abstract: 180,114. Wood, A., and Henshilwood, A. B. March 15, 1921. Non-conducting coverings for heat. - Non-conducting coverings for boilers and the like comprise metal shields having straight or plain flanges and containing non-conducting material f which projects beyond the edges b<1> of the shields so that they do not touch the heated surface c<2>. A space g is left at the joints by cutting away part of the material f and is filled with non-conducting material when the slabs are placed in position. In a modification, one slab may have a projecting edge fitting under the cut-away portion of the adjacent slab. The edges b<2> of the end shields are extended to overhang the shields at right-angles to them. Expanded metal a for reinforcements is held in position by bolts d.
Patent GB-123245-A (GB)
Title: Improvements in or relating to the Propulsion Apparatus of Torpedoes.
IPC: F42B19/26
Filed: 1918-05-16
Abstract: 123,245. Vickers, Ltd., Torazzi, M. F., and Webb, G. W. C. May 16. 1918. Torpedoes, locomotive. - Relates to torpedoes propelled by a combined jet of water and combustion gases from a self combustible, the water being drawn along from the outside through an ejector by the combustion gases. According to the invention, the chamber A containing the self combustible is of substantial diameter and is provided with a contracting nozzle A' extending into the combining nozzle B, which contracts to its smallest diameter a short distance away from the nozzle A<1>, and then expands slightly to reduce the speed of the propelling-jet. The water is led into the combining nozzle from outside through lateral holes A<2> in the torpedo or otherwise.
Patent GB-231522-A (GB)
Title: Improvements in sucking or feeding bottles
IPC: A61J9/04
Filed: 1925-03-28
Abstract: 231,522. Beck, C. March 28, 1924, [Convention date]. Feeding-bottles. - A feeding or like bottle f, which is pear-shaped with flat-sides, is provided with an inclined neck disposed at one side and a valve v disposed in a hole l below the neck. The valve v is conical and is formed with an enlargement or collar w adapted to be forced through the hole l to retain the valve in position. A central bore o in the valve terminates in a slit s, the amount the valve can open being regulated by the distance it is inserted in the hole l. A graduated scale is provided and depressions a in the side walls of the bottle facilitate handling it.
Patent GB-541090-A (GB)
Title: Improvements in or relating to the drying of cellulosic film
IPC: F26B21/00
Filed: 1940-05-09
Abstract: 541,090. Drying cellulosic tubes. HEAVEN, H. S. May 9, 1940, No. 8399. [Class 34 (i)] A wet flexible tube produced from a cellulosic solution is first passed in a flattened state over steam-heated rollers 12 in a drying chamber 18, and then in an inflated or distended state through a further drying chamber 23. Warm air is forced through the chambers by fans 20, 28. In a modification, the rollers 12 are unheated and the tube is heated by radiation from steam pipes in the drying chamber 18. Specifications 541,089 and 541,091 are referred to.
Patent GB-1028711-A (GB)
Title: An improved coupling for hoses or the like
IPC: F16L37/252
Filed: 1963-03-02
Abstract: 1,028,711. Hose couplings. H.A.TRELOAR. March 2, 1963 [March 2, 1963], No. 8436/63. Heading F2G. A hose coupling comprises a pair of complementary hollow members 1, 2 one of which is provided with part annular flanges 9 which co-operate with lugs 7 of the other member and engaging resilient sealing rings 15, each seated in a recess in the end of a hollow member. One end of each flange terminates in an axially extending projection 11 (not shown) such that, when the lugs have engaged with the flanges the projections abut the lugs to prevent accidental uncoupling. Each hollow member is formed with two diametrically opposed lugs and flanges, the end face of each flange projection 11 being chamfered to facilitate the coupling of the lugs and flanges. Apertures are provided in the flanges which are aligned when the members are coupled to effect a locking of the joint. Each sealing ring 15 comprises a hollow annular flange 14, fluid in the radial annular space 17 of which effects the sealing of the joint.
Patent GB-307932-A (GB)
IPC: G08C15/08
Filed: 1929-03-15
Abstract: 307,932. Siemens &. Halske Akt.- Ges. March 16, 1928, [Convention date]. Tell-tale apparatus.-Relates to synchronously driven distributors A, A<1> adapted to associate several testing circuits, as shown thermo elements h<1> - - h<6>, over a single pair of line wires w, v, with testing sets u<1> - - u<6> or with a single testing set and a multiple colour recorder. The invention comprises means for maintaining synchronism between the distributor shafts z, z' which are driven by stepping magnets o, o<1> and ratchet and pawl mechanism. The Figure shows auxiliary distributors m, m<1>, which when lack of synchronism exists open the circuit of the stepping magnet o until synchronism is re-established. In a modification (Fig. 2 not shown) the line wire t is dispensed with and resistances are connected between the short and long contacts of the auxiliary distributors so that with lack of synchronism both resistances are in circuit so that the stepping magnet is not operated while with synchronism a single resistance only is in circuit and the elements are so proportioned that the stepping magnet is operated. The stepping may be effected by alternating current and these stepping currents may be superimposed on the testing and control circuits. A number of remote distributors may be connected in parallel to the testing and control circuits.
Patent GB-580846-A (GB)
Title: Improvements in or relating to expanding carpets for use in negotiating barbed wire obstacles and the like
IPC: F41H11/11
Filed: 1943-05-27
Abstract: 580,846. Roads and ways. CROWN, E. May 27, 1943, No. 8470. [Class 107] An expanding carpet for use in negotiating barbed wire &c. comprises a number of transverse pockets in which are fitted laths adapted to be extended laterally to increase the effective width of the carpet. As shown, the carpet 1 has pockets 2 receiving laths 3 connected to cords 4 which project through slots 5 in the pockets. When winding the carpet on a reel for transport, each cord is attached to an eye at or near the edge of the previous turn of carpet, whereby when the carpet is pulled off the reel, the cords 4 pull the laths out laterally, the edges then being broken. The ends of the laths may be connected as by cords to restrain wire &c. projecting between the laths.