baber/WOPTO huggingface dataset:
Patent GB-641903-A (GB)
Title: Improvements in the production of artificial articles from polymerisable material
Inventor: ATKINSON THOMAS ERNEST
IPC: B29C70/34
Filed: 1947-09-03
Abstract: A homogeneous mixture comprising 90 parts by weight of di-(methacryloxy ethylene)-phthalate, 10 parts of styrene and 1 part of benzoyl peroxide is used to impregnate sheets of cloth stacked in a mould, and the impregnated sheets are heated under pressure for 1 hour at 100 DEG  C.  After cooling to 40 DEG  C. the pressure is removed and the finished laminate stripped from the mould.  The mould is initially lined with a composition comprising: (a) a water-soluble polyvinyl alcohol, and (b) a low molecular weight compound that contains an OH, NH2, COOH or CO.O group and at least one other OH, NH2, COOH or CO.O group, the groups being the same or different or any combination. Compound (b) may be ethylene glycol, glycerol, succinic acid, triethanolamine, glycollic acid, lactic acid, or sucrose.  The composition may be an aqueous solution of the polyvinyl alcohol containing 0.5-2 per cent of compound (b).ALSO:The forming surface of a mould in which liquid water-insoluble CH2 : C< resin is to be polymerized is made of metal and is lined with an adhesion-preventing composition comprising (a) a water-soluble polyvinyl alcohol, and (b) a low molecular weight compound which contains an OH, NH2, COOH or CO.O group and at least one other OH, NH2, COOH or CO.O group, the groups being the same or different or any combination.  By "low molecular weight" is meant a molecular weight of not more than 400.  Compound (b) may be ethylene glycol, glycerol, succinic acid, triethanolamine, glycollic acid, lactic acid or sucrose. The composition may be an aqueous solution of the polyvinyl alcohol containing 0.5-2 per cent of compound (b), and may be applied to the metal-forming surface when the latter is hot, the water being thereby removed therefrom by evaporation and the lining remaining on the forming surface.  The metal forming surface may be "Staybrite" (Registered Trade Mark), aluminium or mild steel.  The resin, e.g. a mixture containing di-(methacryloxy ethylene) phthalate and styrene, may be used to impregnate open weave cloth lamin  which are then moulded with the aid of a rubber bag.  Specifications 588,658, [Group IV], (which describes making sheets between continuous metal bands) and 482,836 are referred to.
Patent GB-1353871-A (GB)
Title: Shallow golf ball dimple configuration
IPC: A63B37/00
Filed: 1972-05-24
Abstract: 1353871 Golf balls ACUSHNET CO 24 May 1972 [6 Dec 1971] 24352/72 Heading A6D In a golf ball having a maximum diameter of 1.70 ins and having dimples, the dimples have a "diameter" EF in the range of 0.150 to 0.165 ins and a depth CD in the range of 0.0090 to 0.0115 ins. The edges of the dimple are preferably rounded with a radius of curvature 26 in the range of 0.020 to 0.080 ins. The points EF between which the "diameter" of the dimple is measured lie at the intersections of a continuation 16 of the periphery of the ball and tangents 44, 46 to the dimple surface at points A, B, 0.003 ins from the periphery of the ball.
Patent GB-329908-A (GB)
Title: Improvements in window frames and method of fixing same in building construction
IPC: E06B1/18
Filed: 1929-08-09
Abstract: 329,908. Gavin, W. A. J., and Lyne, R. J. Aug. 9, 1929. Frames.-The frame of a window is formed in two parts adapted to be clamped together so as to receive between them a fillet which is formed within the opening in the wall. As shown, the window opening a is constructed, adjacent its inner edge, with a fillet or shoulder b which supports a two-part window frame h, k. The outer member k of the window frame has a flange k<1> which abuts against one face of the fillet b, and an inner flange k<2> which is secured to a flange h<1> of the inner member h. A resilient flange l is also provided on the inner member so that the two members h, k will be clamped firmly against the fillet b when secured together in position. The flange l may bear against the wall panelling s supported by the batten t.
Patent GB-628203-A (GB)
Title: Improvements in meshing-screw pumps
IPC: F04C2/107
Filed: 1947-09-04
Abstract: 628,203. Flexible shafts. TRIGGS, W. W. (Food Machinery Corporation). Sept. 4, 1947, No. 24400. [Class 80 (ii)] [Also in Group XXVI] In a meshing-screw pump the rotor 35 is driven from a shaft 22 by means of a flexible shaft 40 comprising a heavy steel cable 44, secured to steel heads 42, the cable and portion of the heads being covered with rubber bonded to the metal parts. A ring 26, tapered internally, prevents undue whipping.
Patent GB-1465801-A (GB)
Title: Process and device for dispersing gas into a liquid
IPC: B03D1/14
Filed: 1974-06-03
Abstract: 1465801 Dispersing gases in liquids; froth flotation apparatus OUTOKUMPU OY 3 June 1974 [5 June 1973] 24480/74 Heading B1C and B2X In a method of dispersing a gas in a liquid or slurry, (e.g. for froth flotation) by means of a rotor within a stator, the increase in hydrostatic pressure with increasing depth is compensated by a hydraulic pressure correspondingly changing with depth in order to keep the total liquid pressure substantially constant over the surface over which the gas is dispersed; this is done by arranging for the ring of liquid between the rotor and stator to increase in thickness with depth so that the centrifugal force acting on the liquid ring produces the compensating dynamic pressure. As shown in Fig. 1 gas is supplied through a hollow shaft and dispersed through passages 5 between which are "grooves" 8 through which the slurry circulates; the envelope of the rotor is cylindrical while the stator is shaped so that the clearance between them increases downwardly. In other embodiments the rotor may narrow downwardly while the inner envelope of the stator is cylindrical, or both may increase in diameter downwardly with increasing clearance (Figs. 4-7, not shown). In Fig. 1 the "grooves" 8 are closed at the bottom, but they may be open at both ends or shrouded at the top (see Figs. 2 and 3, not shown). The gas passages 5 in the rotor may be omitted (Fig. 8, not shown) and the gas introduced above the rotor through a downcover surrounding the rotor shaft (Fig. 12, not shown).
Patent GB-762712-A (GB)
Title: Improvements in or relating to smoothing or pressing irons
IPC: D06F75/38
Filed: 1954-08-23
Abstract: 762,712. Hand irons. HECLA ELECTRICS PROPRIETARY, Ltd. Aug. 23, 1954 [Sept. 14, 1953], No. 24508/54. Class 138 (2). The sole - plate of a smoothing or pressing iron of the type adapted for movement relative to damp fabric being pressed is characterized by the provision of a series of grooves or channels 3, 3c, in the ironing surface which are laterally spaced to form a series of co-aligned ironing surfaces, the majority of the grooves being continuous with their opposite ends extending through the marginal edge of the sole-plate at the same side. In cross-section the grooves may be U-shaped, V-shaped or in the form of a dovetail. It is stated that the provision of grooves 3, 3c permits the use of a sole-plate of light weight.
Patent GB-1283158-A (GB)
Title: Percutaneous gas sensor
IPC: A61B5/00
Filed: 1970-05-20
Abstract: 1283158 Gas sensor JOHNS HOPKINS UNIVERSITY 20 May 1970 [20 May 1969] 24523/70 Heading G1N In a sensing device for determing tissue carbon dioxide or oxygen and hence effective alveolar ventilation the gas is directly introduced to a liquid filled cup in which liquid is positioned a gaspermeable membrane-faced ph sensing electrode for determining the concentration of the gas. The ph sensing head 10 includes a ph sensitive glass electrode 38 containing a silver chloride coated silver wire and electrolyte E together with a reference silver chloride coated silver wire electrode 44. The electrode 38 is positioned in a saline buffer solution B in a cavity 26 formed by members 32, 34 and the open end of which is closed by a gas permeable but not liquid permeable membrane 64 backed by a thin disc of bibulous material 62 such as nylon mesh. After insertion of the ph sensing electrode in cavity 26 metal sleeve 18 is press-fitted about cylinder 24 so as to form, when the head 10 is positioned over a prepared skin area 5 of a patient's arm, a cup or well in which water or saline solution C is introduced, the device being held in position by a malleable lead base-plate L strapped around the arm, Fig.1 (not shown). Gas in the tissue of the patient diffuses freely through the skin, through liquid C, membrane 64 and liquid B into cavity 26 where it affects the ph measurement on a meter connected to leads 56, 60. The lead base-plate L acts as a thermal sink to mimimize temperature changes within the sensor.
Patent GB-1350878-A (GB)
Title: Coumarin derivatives and production thereof
IPC: C07D311/54
Filed: 1972-05-24
Abstract: 1350878 Thieno-coumarins SHIONOGI & CO Ltd 24 May 1972 [31 May 1971] 24550/72 Heading C2C Novel compounds (I) where R 1 , R 2  and R 3  are H or alkyl and Y is H or one or two substituents (i.e. halogen, alkyl and/or alkoxy) are made by cyclizing compounds (II) to (V) in the presence of a mercapto group introducing agent (e.g. thiourea or an alkali metal sulphide or hydrosulphide) where appropriate (R 4  is H or alkyl such that R 1  is equivalent to -CH 2 R 4 , R 5  is H or acyl and X is halogen); (II) to (V) are themselves obtained by standard methods. Pharmaceutical preparations showing analgesic and antipyretic actions contain (I) as active ingredient; administration is, e.g. orally.
Patent GB-238409-A (GB)
Title: Improvements in or relating to folding baby-carriages
IPC: B62B7/10
Filed: 1924-10-16
Abstract: 238,409. Bailey, C. Oct. 16, 1924. Perambulators; folding wheels; hoods.-In a folding baby carriage of the kind in which the wheels may be moved into an inoperative position within a body closable by a lid, an operative connection is provided between the lid and the wheel-carrying members, whereby the latter are swung outwards as the lid is opened and inwards as it is closed. As shown in Fig. 6, the body in the form of a box comprises a frame 1, 2 and a hinged lid 4, the bottom of the box being open or slotted to allow the wheels 10 to be withdrawn within the box. The wheel forks 9 are pivoted on spindles 8 and, together with the hinged end 16, are adapted to be operated by links 11, 12, 18 from the lid on the latter being opened. The hinged lid 4 is provided with a rim 6 for use as a handle and with a flap 22 preferably in two parts hinged together to form a canopy or hood, and side curtains may be provided. A hammock 25 is connected to the hinged lid 4 by means of springs 28 and adapted to be connected to the hinged end 16 at one of two positions according as a recumbent or sitting position of the child is desired, a transverse rod being provided in the latter case to divide the hammock into sitting and foot-rest portions. The whole is adapted to be closed and may contain cushions, the child's apparel, &c.
Patent GB-1165003-A (GB)
Title: Improvements relating to Cathode Ray Tube Focusing and Deflecting Arrangements.
Inventor: MAYO BERNARD JOSEPH
IPC: H01J29/58
Filed: 1965-09-25
Abstract: 1,165,003. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. 15 Sept., 1966 [25 Sept., 1965]. No. 24579/69. Divided out of 1,165,002. Heading H1D. The description is the same as that of Specification 1,165,002, but the claims are directed to a cathode-ray tube in which an electronpermeable electrostatic screen-e.g. a mesh grid electrode-is disposed adjacent the exit end of a pair of electrostatic deflection plates,'whereby, by the application of a suitable potential to the grid-e.g. the mean potential of the deflection plates-curvature of the image field may be corrected.
Patent GB-586499-A (GB)
Title: Improvements in filing cabinets
IPC: A47B88/48
Filed: 1944-12-08
Abstract: 586,499. Filing cabinets. PAXTON, J. W., PAXTON, G. N., and CORNISH, I. R. Dec. 8, 1944, No. 24612. [Class 52 (i)] [Also in Groups XV and XXV] A filing cabinet comprises a casing 1 in which is mounted one or more filing containers 2 adapted to be swung from a storage position wherein one side 11 of the container serves as a closure for an opening in the vertical face of the casing, through 90‹ to an access position in which a substantial part of the container is still located within the casing, such swinging movement being obtained by providing a pair of links 22, 23 at each end of the container pivoted to the casing at 27, 28 and to the container at 25, 26 respectively. In its storage position, the container is located vertically and horizontally by the links 22, 23 respectively, and in its access position these functions are reversed as shown in Fig. 2. The side 12 of the container has a slot 17 to receive a follower member, and the sides 11, 12 are joined by end members 13 curved along their edges 4. The ends 13 are recessed to receive the links, such recesses having extensions 19, 20 the sides of which constitute stops to limit the movement of the links and therefore of the container. Blocks 30, 31 fixed to the casing are shaped also to act as stops for the links. Resilient members 41 and blocks 38 with inclined faces 39 ensure the correct positioning of the container when it is moved into the casing, and another inclined face 40 on each block 38 arrests the outward movement. The links 22, 23 cross one another and are suitably recessed to allow of this.
Patent GB-1122115-A (GB)
Title: Improvements in gauging apparatus
IPC: G01B13/02
Filed: 1966-06-02
Abstract: 1,122,115. Fluid gauges. L.E.C.A. WATTEBOT. May 26, 1967 [June 2, 1966], No. 24712/66 Heading G1M. In a fluid gauging apparatus there is provided a first chamber 8 and a second intermediate chamber 3 inter-connected by a fixed orifice 4, the gauging head 1 being connected to the chamber 3, and one wall 7 of chamber 3 being formed as a flexible membrane which lies in contact with the piston of a valve 6 controlling the fluid supply 5 through the orifice 4. In use, fluid is supplied to the gauging head 1 so as to stabilize the pressure in chamber 3 according to a particular workpiece size, variations in pressure altering the position of valve 6 to maintain the pressure constant in chamber 3. Resulting pressure changes in chamber 8 are indicated on a manometer 9 as a measure of the variations in workpiece dimensions. In a modification, the apparatus is fitted with a valve balancing piston having an elastic or spring-biased flexible membrane, and a further intermediate chamber is provided. In a third embodiment, the valve arrangement is such that the inlet valve tends to close when the pressure in the intermediate chamber decreases. In a further embodiment, two valve arrangements are connected to a gauging head, one of the arrangements acting as an amplifier.
Patent GB-393564-A (GB)
Title: Method for casting electrodes chiefly anodes for x-ray tubes
IPC: H01J35/08
Filed: 1931-09-03
Abstract: 393,564. R÷ntgen-raytubes. MULLER AKT.-GES., C. H. F., 24, Fiihlsbiittelerdamm, Fuhlsbuttel, Hamburg, Germany. - Sept. 3, 1931, No. 24754. Convention date, Sept. 6, 1930. Void [Published under Sect. 91 of the Acts]. [Class 39 (i).] In making electrodes, such as anodes of X-ray tubes, of the kind having a front surface of tungsten &c. and a body of copper &c. cast on, a fine crystalline texture is produced in the copper by chilling the front of the electrode after casting and by subsequent mechanical treatment. A thin layer of copper is originally cast over the tungsten and is only removed when the electrode is being finished. After casting, the front surface of the electrode is ground to become parallel to the slope of the tungsten plate and the iron sheath around the casting is removed near the front surface. The electrode is set in a die punch with the front surface parallel to the rough upper surface of the punch and is heated near its centre in the iron sheath and reduced in length by jumping. The heating and jumping are carried out rapidly to avoid equalization of temperature along the electrode. The electrode is then annealed over its whole length for a short time and is machined.
Patent GB-379516-A (GB)
Title: Manufacture of mixed yarn from artificial staple fibres and silk fibres
IPC: D01G99/00
Filed: 1931-09-04
Abstract: 379,516. Mixed yarns. GROVES, W. W., 30, Southampton Buildings, London. -(I. G. Farbenindustrie Akt.-Ges. ; Frankfort-on-Main, Germany.) Sept. 4, 1931, No. 24876. [Class 120 (iii).] A mixed yarn containing silk and artificial staple fibres is made by bringing the silk fibres into parallel relationship, cutting them to the length of the artificial staple fibres, which is 1-2 inches, mixing both kinds of fibres and working up the mixture on a cotton spinning machine. The silk fibres are preferably treated on the preparatory machines used in Schappe combing, and then cut, preferably after damping or softening treatment. The two kinds of fibres may be mixed before combing, or the artificial fibres and the silk fibres may be made into separate slivers which are combined on the drawing frame. In the finished material, colour effects can be produced by dyeing with dyes having different affinities for the two kinds of fibres.
Patent GB-1476768-A (GB)
Title: Transfer supports for use in transfer printing
IPC: B44C1/17
Filed: 1974-06-05
Abstract: 1476768 Transfer supports JOINTINE PRODUCTS CO Ltd 7 May 1975 [5 June 1974] 24910/74 Heading B2E [Also in Divisions B5 and B6] A transfer support comprises a substrate, a release coating comprising a mixture of an aminoplast resin (e.g. urea/formaldehyde resin, optionally isobutylated) and polyvinyl butyral on said substrate, and a support film separably adhered to the release coating. The substrate may be a sheet, ribbon or strip of porous or non-porous paper, e.g. glassine paper, br clay or polyethylene coated paper, and the separable film may be made of vinyl chloride/ vinyl acetate copolymer or polyvinyl acetate. The release and separable layers each may be applied by roll coating from solution. A layer of pigmented p.v.c., polyvinyl acetate or p.v.c./ acrylic mixture may be applied as a design or image onto the separable layer by gravure roll. In examples, printed transfers were applied to p.v.c. sheet using heat and pressure.
Patent GB-225190-A (GB)
Title: Improvements in locomotives with surface condensers
IPC: F28B1/06
Filed: 1924-10-21
Abstract: 225,190. Henschel & Sohn Ges. Nov. 19, 1923, [Convention date]. Surface condensers.-A surface condenser for a railway engine is so designed that it is cooled by air only when the engine is running at normal load, and cooling-water can be supplied when under conditions of extra load. The condenser tubes 5 are arranged between headers 3, 4 and air is forced over them by fans 11. Water-spray may be introduced through perforated pipes 10, air and steam escaping by a trunk 13.
Patent GB-449728-A (GB)
Title: Improvements in or relating to undercarriages for aircraft
IPC: B64C25/00
Filed: 1935-09-09
Abstract: 449,728. Aeroplane undercarriages. CESKOMORAVSKA-KOLBEN-DANEK CO., Ltd., 36, Palackeho, and SLECHTA, J., 399, Obvodova, both in Prague. Sept. 9, 1935, No. 25087. Convention date, Sept. 29, 1934. [Class 4] An aeroplane undercarriage comprises a side member 1 pivoted at 8 and connected to an axle 2 upon which wheel 3 is rotatably mounted and which houses a springing device comprising a movable sleeve 4 connected at 9 to a radius rod 10, and a spring 5, one end of which bears on the end of sleeve 4 and the other on a plate 6 secured to axle 2 by a bolt 7. When the undercarriage is loaded member 1 rocks about pivot 8 thus causing axle 2 to move away from pivot 11 of radius rod 10 thereby causing sleeve 4 to slide relative to the axle and compress spring 5.
Patent GB-389099-A (GB)
Title: Improvements in or relating to the preparation of resinous condensation products from phenol and formaldehyde
Filed: 1931-09-08
Abstract: Permanently fusible and soluble phenolformaldehyde resins (novolaks) are made by condensing not more than 7 mols of formaldehyde with 13 mols of phenol in the presence of ammonia corresponding to not less than 10 per cent of 25 per cent aqueous ammonia based on the phenol content.  Part of the phenol may be substituted by other resin-forming substances, e.g. urea.  The reaction is conducted so that the ammonia and water is allowed to distil off.  Colouring agents or plasticizers may be added during or after the reaction. The preferable molecular proportions of phenol, formaldehyde and ammonia are 13 : 7 : 5.  In an example 12 parts of phenol are heated with 4,4 parts of 40 per cent formaldehyde with 2,9 parts of 25 per cent ammonia in a kettle fitted with an air-cooled ascension pipe and the product distilled in vacuo.  Specifications 131,112, 159,461, and 206,469, [all in Class 2 (iii), Dyes &c.], are referred to.  The Specification as open to inspection under Sect. 91 comprises also the use of "basic catalysts," phenols and aldehydes generally.  Specified phenols are cresol, b -naphthol and multivalent phenols, and specified aldehydes are polymers of formaldehyde or substances yielding formaldehyde as hexamethylenetetramine; pyridine and trimethylamine are also specified as basic catalysts.  The following examples are also given: (1) cresol, naphthol and formaldehyde are condensed in presence of pyridine; (2) cresol, urea and hexamethylenetetramine are condensed as above.  This subject-matter does not appear in the Specification as accepted.
Patent GB-723175-A (GB)
Title: Improved work-guides for rolling mills
IPC: B21B41/06
Filed: 1952-10-09
Abstract: 723,175. Rolling. CHRISTIANIASPIGERVERK, and MORGARDSHAMMARSMEKANISKA VERKSTADS AKTIEBOLAG. Oct. 9, 1952 [Oct. 9, 1951], No. 25331/52. Class 83 (4). Rolling mills with looping repeaters have whip channels provided with approximate circular flanges to damp the whip-lash when the end of the work is freed by the rolls. In one. example the whip channel comprises a base 5 Figs. 4 and 5, with a series of arcuate flanges 7, the first flange 7 acting as the curved repeater guide. As the formed loop extends it jumps the flanges 7 and when the tail end of the rod leaves the preceding stand the loop rests against the nearest flange and is prevented from whipping. A corrugated or stepped lid 6 above the flanges 7 assists in restricting the free movement of loop. In modifications a flange 10, Fig. 15, is provided to engage the end of the rod if it flies beyond the last flange. The size of loop formed may be controlled by a series of photo-electric cells 19 which detect the. loop through apertures in the lid 6 and regulate the relative speed of the roll stands. In another example in which the speed of a succeeding roll stand is greater than a pre-. ceding stand so that the size of loop decreases, the loop is initially formed by a single curved guide 10, Fig. 13, and the size of loop is controlled by an arm 12 carrying a pin 15 engaged. by the loop and regulating the relative speed, of the roll stands through a resistance 18. On release of the end of the rod the loop reengages the curved guide 10. Specifications 587,457 and 589,913 are referred to.
Patent GB-655947-A (GB)
Title: Improvements in or relating to electric space heaters
IPC: F24C7/06
Filed: 1947-09-17
Abstract: 655,947. Spring clips. GARRETT ENGINEERING WORKS, Ltd., R., WILMOT, H., and BAMBROUGH, A. Sept. 17, 1947, No. 25398. [Class 44] '[Also in Groups XI and XXXVI] A clip or bracket for supporting a rodlike element comprises a length of strip metal which is adapted to be supported at one end 9 and has its other end 4 formed to receive the element. A resilient tongue 7 is sprung from its normal position as the element is inserted in the clip and the tongue springs up behind the element which is thus positively retained in place. The end 4 of the clip is preferably curved over through more than two right angles of arc and the tongue 7 may be pressed out of the clip or separately formed and mounted thereon.