baber/WOPTO huggingface dataset:
Patent GB-653446-A (GB)
Title: Improvements in or relating to figured textiles
IPC: D06Q1/02
Filed: 1947-12-31
Abstract: Figured textile fabrics comprising or consisting of natural or regenerated cellulose fibres are produced by providing the fabric locally with one or more resists in the form of a paste consisting of an aqueous emulsion of hydrocarbons, glycerides, waxes or synthetic waxes, higher fatty acids or their salts or of mixtures of these substances, a washable thickening agent and a pigment and/or metal salt adapted to form a pigment by hydrolytic dissociation or thermal decomposition, drying and/or steaming the printed fabric, treating it with sulphuric acid under parchmentizing conditions and finishing the fabric in the usual manner.  The term "higher fatty acids" denotes fatty acids derived from oils and fats.  Emulsions of paraffin wax, ceresin, beeswax, tallow, stearine, stearine soaps or wax soaps, which compounds may be wholly or partially sulphonated, may be used. Pigments specified are titanium dioxide, zinc white, permanent white, kaolin and lithopone; metal salts which yield pigments on hydrolysis or thermal decomposition are aluminium, antimony, bismuth, tin, lead, zinc and magnesium salts, such as aluminium acetate and formate, aluminium salts of aromatic orthodicarboxylic acids or their derivatives, for example phthalic acid and tetrachlorophthalic acid, antimony-potassium tartrate, lead chloride, bismuth carbonate, alkali stannates, zinc acetate and magnesium chloride.  Cation-active compounds such as lauryl pyridinium sulphate may also be added to the printing paste. Cotton or rayon fabrics or materials containing cotton and rayon fibres may be treated.  The fabrics may be in a raw state or may have been pretreated, for example bleached, mercerized, dyed or calendered.  The process may be associated with an anti-crease treatment, for example with artificial resins such as dimethylolurea, with an esterification or etherification process or with various swelling processes and with the usual pigment or colour printing and local transparentizing printing.  In an example, a bleached and mercerized cotton muslin is printed with a paste consisting of a thickening agent (wheat starch, tragacanth and water), an aqueous emulsion of paraffin wax, sodium silicate, titanium dioxide, glycerine, water, and indanthrene blue; the fabric is dried, steamed, parchmentized under tension in concentrated sulphuric acid, neutralized or washed, treated with soda lye, again neutralized, washed until the surplus pigment is removed and finished in the usual manner.  The Specification as open to inspection under Sect. 91 describes also the treatment of fabrics of wool or natural silk or mixtures thereof.  Zirconium oxychloride and oxynitrate and colloidal silicic acid are also referred to as pigments which may be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-393342-A (GB)
Title: Improvements in telephone cables
IPC: H01B11/02
Filed: 1931-12-22
Abstract: 393,342. Correcting inductive disturbance. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and ROSEN, A., 163, Fordwych Road, both in London. Dec. 22, 1931, No. 35447. [Class 40 (iv).] Relates to means for diminishing cross-talk in multi-circuit cables for four wire working in which go and return circuits appear in the same layer, e.g. in the cable shown, circuits 1 to 7 may be go circuits and 8 to 14 return circuits. The couplings giving rise to greatest near-end cross-talk between go and return circuits are those between the " boundary pairs 5, 14 and 7, 8 and according to the invention these are reduced by (1) selecting as boundary pairs those between which the couplings are small, or (2) cross-connecting cable lengths so that such couplings are substantially evenly distributed between the circuits. The two methods may be used in combination. In method (2) the couplings between adjacent circuits within a group (go or return) may be also distributed evenly between the circuits thus reducing farend cross-talk within each group. This method of reducing far - end cross-talk within the groups may be applied to cables in which boundary couplings are reduced by screens instead of by methods (1) and (2). The cable lengths may be graded in accordance with the values of the boundary couplings, lengths with smaller couplings being used adjacent the repeater sections. The circuits represented by circles in the drawing may be pairs or quads, the two circuits of a quad being both go or both return, and couplings within a quad may be minimized by crossings or added condensers. The Specification contains a table showing the cross-connections over a number of cable lengths necessary for method (2) including distributing the adjacent couplings within the groups, and explains how these connections are determined.
Patent GB-343557-A (GB)
Title: Improvements in moulded articles and methods of forming the same
IPC: B29C33/00
Filed: 1929-11-20
Abstract: 343,557. Moulding telephone receivers &c. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.-(Assignees of Zelenka, J. J. ; 535, North Ashland Avenue, La Grange, Illinois, U.S.A.) Nov. 20, 1929, No. 35475. Convention date, Jan. 2. [Class 87 (ii).] Plastic compositions, e.g. phenol plastic, are pressed to form articles in moulds having recesses to form a fin at the greatest lateral dimension of the article, the fin being subsequently removed so that finishing operations may be confined to a small area. As applied to the manufacture of a telephone hand set, phenol plastic is moulded to form the handle 12, the receiver 17 and the transmitter 24 in separate parts. The mould is mounted in a holder 11 provided with passages 16 for the circulation of heating or cooling fluid. Similar passages are provided in the upper mould member 10. The meeting face of the mould parts 10, 12 is shaped to produce a rim 14 and a rib 19. After moulding in polished dies, while heated and then maintaining the pressure during the cooling operation, the article is removed in a highly polished condition. The rib 19 is then removed as by grinding, and owing to the location of the rib at the greatest lateral dimension of the article the grinding does not mar any of the finished surfaces.
Patent GB-870287-A (GB)
Title: Polymeric compositions
Inventor: GUEST DOROTHY JOYCE
IPC: C08L3/12
Filed: 1958-11-05
Abstract: Aqueous dispersions of vinyl acetate and vinyl propionate polymers and copolymers (e.g. with ethyl and butyl acrylate), containing at least 50% of the vinyl ester, are made by polymerizing the monomers in aqueous dispersion in the presence of, as dispersing agent, 1/2 %-8% of amylopectin, calculated on the total dispersion and in the absence of more than 5% of amylose, calculated on the amylopectin content.  The catalyst may be a salt of a peracid such as a perborate or persulphate, e.g. ammonium persulphate, and the monomer and catalyst may be added continuously during the polymerization, which may be carried out at increasing temperature as it proceeds.  The aqueous polymer dispersions produced may also contain plasticizers, such as dibutyl phthalate, which may be added before or after the polymerization.  Further amylopectin may be added, together with other ingredients, if the dispersion is to be used as an emulsion paint.  The other ingredients may be rutile titanium dioxide, fine china clay or sodium o-phenyl phenate preservative.  The compositions may be used for coating leather, paper and textiles and as decorative paints.
Patent GB-1323837-A (GB)
Title: Conveyor with two terminals connected by at least one conveyor belt
IPC: B65H29/50
Filed: 1971-07-28
Abstract: 1323837 Feeding letters by endless conveyer belts LICENTIA PATENT-VERWALTUNGS GmbH 28 July 1971 [30 July 1970] 35533/71 Headings B8A and B8R Letters 5 are fed from a delivery point E to a stack by a belt 30, the delivery section A of which is mounted on a movable trolley 15. The latter runs on wheels 16, 17, 19, on rails 18, 20, and is driven towards or away from the stack by the action of differential relative speeds of pulleys 36, 39, over which the belt passes. The speeds of these pulleys are equal (i.e. at the peripheral speed of the belt 30 which is driven by a drive pulley 32) until a clutch 50 (Fig. 2) is operated by a control arm 50<SP>1</SP>. This brings in a drive from the pulley 39 to a pulley 48. The latter is connected to a smaller diameter pulley 47 [coaxial and rigid with the pulley 36) by a belt drive 49. This results in a speed differential between the pulleys 36 and 39, and consequent movement of the carriage 15. As shown, the trolley moves away from the stack when the clutch 50 is engaged, but by altering the drive ratio of the pulleys 48 and 47 from greater than, to less than, unity, the direction of trolley movement may be reversed. The stack is carried by a conveyer belt 7. This is driven by a drive motor 12 controlled by a sensor switch 14 (see also Fig. 3) whenever a letter of the stack rests against a sensing arm 14. The letters are removed from the stack by the action of a suction belt 4. A sensor 28 bearing on the tail of the stack, operates a switch 26 when the stack pressure reaches a given amount. This causes engagement of a brake 24 to prevent rotation of a sprocket 25. The latter engages a chain 21 which runs in time with the conveyer belt 7. The sprocket 25 thus normally idles, but when the brake 24 is operated, it causes forward movement of the trolley, with the movement of the conveyer 7. A back-up belt 31 driven by a pulley 41 holds the letters in engagement with the belt 30.
Patent GB-1474213-A (GB)
Title: Apparatus for simultaneously viewing diapositives and front viewed pictures
IPC: G03B27/32
Filed: 1974-08-13
Abstract: 1474213 Lamps GRETAG AG 13 Aug 1974 [28 June 1974] 35675/74 Heading F4R [Also in Division G2] Apparatus for simultaneously viewing diapositives and front viewed pictures, e.g. transparent printed copies and prints produced therefrom, comprises a rear viewing device 1 and a front viewing device 2 which are hingedly interconnected at 6 and can be fixed in adjusted angular relative disposition by rods 9 hinged to a cover 4 housing the device 2 and engaged by clamping screws 8 in a base 3 housing the device 1. The device 1 includes a light impervious casing 10 having a light dispersion window 11 for supporting diapositives 12 and housing a row of light tubes. The device 2 includes a support surface 13 for pictures 14 and light tubes 15 mounted within reflectors 16, see Fig. 2 (not shown), which prevent direct vision of the tubes 15 by an observer but ensure uniform illumination of the surface 13. In a second embodiment, Fig. 3 (not shown), the tubes 15 and reflectors 16 are replaced by a trough-shaped reflector housing light tubes and hingedly connected to the cover housing the device at a position opposite the hinge connecting the cover to the base.
Patent GB-1472781-A (GB)
Title: Preconditione d yellow pigment preparations
IPC: C09B67/00
Filed: 1974-08-14
Abstract: 1472781 Yellow pigment preparations KEMISK VAERK AS 14 Aug 1975 [14 Aug 1974] 35702/74 Heading C4A A yellow pigment preparation comprising an amine-preconditioned yellow pigment in admixture with a particulate white or near white inorganic filler may be prepared by forming a mixture comprising the pigment, the filler and a liquid medium, separating the mixture of pigment and filler from the liquid medium and washing and drying the separated mixture. The preparation may be dispersed in a printing ink vehicle to give a printing ink. In the examples preparations comprising pigments prepared from acetoacetylaminobenzene, a tetrazo solution prepared from 1,3<SP>1</SP> - dichloro - 4,4<SP>1</SP> - diaminodiphenyl 1 - acetoacetylamino - 2 - chlorobenzene and 1 - acetoacetylamino - 4 - methylbenzene, N - coco - alkyl - trimethylene diamine, N - coco - alkyl - dipropylene triamine, tallow fat - alkylmonoamine, N - coco - alkylpropylene diamine, chemically precipitated chalk, micronized talc and china clay are formed. The preparations are dispersed in a solution of calcium-zinc-resinate in toluene to give a printing ink.
Patent GB-940253-A (GB)
Title: Production of polyisoprene
IPC: C08F136/08
Filed: 1961-10-05
Abstract: 940,253. Polyisoprene; polymerization catalysts. FARBENFABRIKEN BAYER A.G. Oct. 5, 1961 [Oct. 6, 1960; Dec. 21, 1960; Dec. 28, 1960], No. 35895/61. Heading C3P. Polyisoprene which has a predominant cis structure is made by polymerizing isoprene preferably in an inert medium, in the presence of a catalyst consisting of a lithium-aluminium tetraalkyl and TiCl 4  in which the molar ratio of the tetraalkyl to the tetrachloride is from 0À4:1 to 0À8:1. The tetrachloride may be partially or completely replaced by TiBr 4 . Specified tetraalkyls are LiAl(n-C 4 H 9 ) 4 , LiAl(n-C 4 H 9 ).(iso- C 4 H 9 )3, LiAl(n-C 12 H 25 ) (n-C 4 H 9 ) 3 , LiAl(n- C 12 H 25 , (C 2 H5) 3, and LiAl(CH 2 -CH 2 -C 6 H 9 ) 4 , where -C 6 H 9  is a cyclohexenyl radical. The isoprene and solvent may be purified before use. The polymerization may be effected continuously, or batchwise. The polymer may be recovered and purified from the polymerizate, by conventional techniques. During the working up process stabilizers and antioxidants may be included in the polymer. Specification 776,326 is referred to.
Patent GB-344781-A (GB)
Title: Improvements in or relating to embroidery machines
IPC: D05C3/04
Filed: 1929-12-10
Abstract: 344,781. Embroidery machines. HUNTBACH, J., HUNTBACH, L. J., and ATTENBOROUGH, R., (trading as HUNTBACH, SON & CO., J.), Byron Works, Platt Street, Nottingham. Dec. 10, 1929, No. 35902. [Class 112.] A multiple-needle embroidery machine has two or more needle bars carrying alternating needles so that a number of needles can be moved out of or into operation without displacing them relatively to their needle bars. In the form shown, needle bars 1, 2 carry alternate needles and are reciprocated from the shafts 3, 4. The shaft 3 drives the shaft 4 via the arm 5, pin 11 and links 7, 8. By removing the pin 11, the shaft 3 and needles 1a only are reciprocated. By coupling the shaft 3 to the shaft 4 by the pin 21 and slot 20, Fig. 1, and releasing the coupling 10, the shaft 4 and needles 2a only are reciprocated. A treadle may be connected to the link 7 to couple the link and arm 5 at the end of stitches to produce long stitches by the needles 2a. Long stitches are produced by delaying the motion of either or both the needle bars by providing the shaft 3 with a friction coupling with the drive in addition to the pin-and-slot connection between the link 7 and arm 5, and the coupling 10.
Patent GB-870349-A (GB)
Title: Method and apparatus for the separation of gas mixtures
IPC: F25J5/00
Filed: 1958-11-10
Abstract: 870,349. Cold separation of gas mixtures. JOY MANUFACTURING CO. Nov. 10, 1958 [Nov. 14, 1957], No. 35972/58. Class 8(2). In a method of separating readily condensible impurities from a gas mixture e.g., air prior to its rectification in a column 72 to produce a substantially pure product e.g., nitrogen comprising cooling compressed air in one or other of paths 16, 18 in heat exchangers 20, 22 in countercurrent to cold nitrogen in paths 86 or 88 then interrupting said air and nitrogen flows and passing a reverse flow of effluent nitrogen in say path 18, warm high pressure nitrogen is passed through a third path 102 of the exchanger being derimed and of such heat content as to sublime the condensed impurities. The cold and warm nitrogen paths are included in a refrigeration cycle comprising an expansion engine 70 exhausting a minor portion of nitrogen through a line 126, one or other of paths 86, 88 of exchangers 20, 22 to the intake of a compressor 76 where it is joined by the remaining major portion of the engine exhaust after having liquefied high pressure nitrogen in an exchanger 120 and effected preliminary cooling of said nitrogen in an exchanger 78. The minor portion of the warm compressed nitrogen issuing from compressor 76 traverses a path 114 of exchanger 78 after which it is joined by the remainder after having traversed one or other of paths 100, 102 of the exchanger being derimed, and a major portion of the combined streams passes to the intake of the expansion engine whilst the remainder traverses a path 156 of exchanger 120 where it is liquefied before beingfed through a line 158 to the column 72. Make-up for the cycle is provided by the column through a line 128. An operation change-over of exchangers 20, 22 is effected by a conventional valve arrangement once an hour, but since the warm high pressure nitrogen flow is designed to provide more heat than is necessary the flow through path 100 or 102 is shut off five minutes short of the hour and the cold nitrogen stream is allowed to flow through say path 88 of exchanger 22 near the end of its deriming period as well as through path 86 of the exchanger 20 in use, whereby exchanger 22 due to be put into use is cooled at all points to substantially those temperatures which subsist after the air flow is established therein. Low pressure liquid nitrogen product is withdrawn through a duct 188 and valve 228 whereas gaseous nitrogen product is withdrawn through ducts 189, 220 a path 222 of exchanger 78 and a line 224. The pressure of product liquid or gaseous nitrogen may be increased by a pump 212. In a modification for the production of oxygen using a conventional double column 225, Fig. 2 (not shown), the nitrogen liquefied in exchanger 120, instead of being fed direct to the column gives up its cold in a fourth exchanger to the incoming air stream just prior to its entry into the column.
Patent GB-1030200-A (GB)
Title: Air cooled rotary piston engine
IPC: F01C1/44
Filed: 1963-09-12
Abstract: 1,030,200. Rotary piston internal combustion engines. A. JORDAN. Sept. 12, 1963 [Sept. 19, 1962], No. 36022/63. Heading F1F. A rotary piston I.C. engine comprises a housing having a central part or jacket 14, Figs. 1 and 2, of oval bore, a shaft 1 coaxial with the bore on which is fixed a rigid arm 2 carrying at its ends pivotedly mounted pistons 6 and a flywheel 5 formed also as a cooling fan 4. The ends of the pistons 6 are in constant sealing contact with the oval bore and the sides thereof are fitted with spring-loaded sealing strips 12 engageable with side walls 16 of the end parts of the casing. Cooling air admitted through an inlet duct 17 is drawn in the fan 4 to pass through apertures in the end parts and thence deflected into a duct 18. The duct 18 may be connected to atmosphere or to a duct 20 supplying combustion air to the engine, some of which is forced under pressure through the space between a piston and the oval bore to scavenge previously combusted gases and to pass through the exhaust outlet 21. Operating as a diesel engine, fuel is injected into a combustion chamber 24a through a nozzle 22. Semi-circular sealing pads 10 are fitted in the pistons with sealing strips 11. The jacket 14 may also be water-cooled with the inlet located close to the combustion chamber. In another embodiment, a further rigid arm 2a, Fig. 3 (not shown) clamped around the shaft 1 and movable relatively to the arm 2 is fitted. At the ends of this arm 2a, further pistons 6 are pivotally mounted and the ends of these pistons abut semi-circular sealing bars 10 fitted with sealing strips 11 which also abut the ends of the pistons carried by the arm 2. When operating with a gas-air mixture and fitted with a spark-plug 22a, the gas-air flow mixture in each of the four working chambers is ignited in turn. When operating as a diesel engine alternate chambers carry uncompressed and heated cooling air which effects cooling of the oval bore. A single piston may be used in which case an extension of a radial arm will be fitted with a balance weight or three pistons arranged at the corners of an equilateral triangle.
Patent GB-508207-A (GB)
Title: Improvements in or relating to carbon manifold packs for use in typewriters, tabulators and the like
IPC: B41L1/16
Filed: 1937-12-29
Abstract: 508,207. Minifolding - pads &c. GREENAWAY, D. 13. Dec. 29, 1937, No. 36034. [Class 16] In a manifolding-pad of the kind comprising at least two paper sheets 1 and a carbon sheet 2 interleaved between each adjacent pair of paper sheets, all the sheets being bound together at one edge to form a stub 3 and perforated at 4 adjacent the stub, and a portion 7 of each paper sheet extending beyond the carbon sheet or sheets and a portion 2a of each carbon sheet extending beyond the paper sheets in such manner that the projecting portions of the paper and carbon sheets are free to be gripped by hand before the sheets have been separated from the stub, the perforations 4 are such that the bond between any one carbon sheet and the stub is not less than the bond between any one paper sheet and the stub whereby neither the paper nor the carbon sheets are likely to be unintentionally separated from the stub. Tho paper sheets 1 may have further perforations such as 8 or 9. The pad may be modified in several ways as regards the projecting portions of the paper and carbon sheets.
Patent GB-782922-A (GB)
Title: Improvements in or relating to moderator and reflector structures for nuclear reactors
Inventor: LONG EVERETT
IPC: G21C5/08
Filed: 1954-12-13
Abstract: 782,922. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Dec. 6, 1955 [Dec. 13, 1954], No. 36075/54. Class 39(4). A restraint for keeping the moderator structure of a nuclear reactor stable whilst allowing for dimensional changes in the lifetime of the reactor comprises a series of elastic bands around the structure, each band comprising a series of joined links and each link comprising a nest of coaxial tubes, the tubes in each nest being end-loaded one against the other so that alternate tubes accept equal tensile and compressive loads respectively, couplings between adjacent links from the innermost tube at one link to the outermost tube of the adjacent link, and means for transmitting the tensions in the bands as a centrifugal load to the walls of the moderator structure. Referring to Fig. 1, the moderator structure 10 is in the form of a twenty-four sided prism constructed of blocks arranged in layers. Each layer is restrained from radial expansion by an elastic band comprising twenty-four links 12 with pin joints 14 between the links. The joints 14 are held by a bracket welded to angle section restraint beams 16, Fig. 3a, which press against the walls of the structure. The restraint beam 16 of the bottom layer is provided with twenty-four extensions 19 which are bolted to a grid 26 which is maintained coaxial with the surrounding pressure vessel 17 so that both radial and sideways movement of the moderator structure is prevented whilst radial growth is permitted. Fig. 4 shows the construction of one of the links 12 which comprises nests of tubes 28, 29, the tubes 28 being in compression between the ends 30 of tubes 29 which are in tension. At one end an end-piece 32 is welded to the end piece of the outermost tube, whilst at the other end a tie bar 35 is threaded to accommodate a bush 34 which is located in a forked end 37. For the intermediate restraint bands the tubes 28, 29 and the tie bar 35 are of mild steel, and for the top and bottom bands the tubes 28 are of stainless steel. Fig. 6 shows how the graphite moderator and reflector structure is built up. In the moderator part, vertical graphite blocks with central fuel element channels are spaced apart to allow for growth by two layers of tiles 47, 48 ; the tiles 47 have their " North/South " faces in contact and their " East /West " faces spaced apart and the tiles 48 have the reverse arrangement. The blocks of the reflector part 10b are not spaced apart as the radiation is not sufficient to cause appreciable growth in them.