baber/WOPTO huggingface dataset:
Patent GB-652948-A (GB)
Title: Improvements in textile materials
IPC: D06M11/38
Filed: 1948-08-13
Abstract: Fabrics composed of a highly polymerized polymethylene terephthalate having 2 to 10 inclusive carbon atoms in the polymethylene chain are treated with an aqueous solution of caustic soda or caustic potash. A reduction in weight and thickness, uniform throughout the material and bearing a relation to the time of treatment results.  The treatment may take place under atmospheric pressure using solutions of between 4 and 20 per cent by weight of alkali.  Preferably the treatment should take place at about 60 DEG  C.  If desired, the treatment may be carried out in a Kier pressure boiler, using lower concentrations of alkali metal hydroxide.  Caustic soda is preferred to caustic potash.  If desired, treatment may be carried out using a jig or winch.  The fabrics of the invention may be used for electrical insulation purposes.  In an example small test pieces of fabric woven from 45 denier polyethylene terephthalate yarn are boiled in 4 per cent aqueous caustic soda for periods of 1 and 1 1/2 hours, and the thickness and the breaking load of the warp yarns determined.  A second example describes the treatment of a locknit fabric made from the same yarn in 4.6 per cent caustic soda at 91 DEG C. on a winch machine.  Specifications 578,079 and 590,451 are referred to.
Patent GB-136888-A (GB)
Title: Method of Making Pneumatic Tire Casings.
Inventor: THORNTON ALFRED AUGUSTUS
IPC: B29D30/36
Filed: 1918-12-20
Abstract: 136,888. Thornton, A. A., (Dykes, J. L. G.). Dec. 20, 1918. Moulding wheel tyres.-Relates to the method of moulding wheel tyres from an endless body of cylindrical formation by means of interior moulds which enlarge the tread diameter, the moulds consisting of a series of segments capable of meshing to form a complete circle when forced outwardly by cams. According to the invention, the segments 13, 14, Fig. 4, are removably mounted on carriers 15, 16 which slide in slots 17, 19 in a table 18, Fig. 5. A camhead 20, Fig. 6, with long and short cam faces 21, 22 is raised to force the segments outwards to form a circle, when the tyre band and mould are removed for vulcanizing. The vulcanizing is carried out in a. mould 23, Fig. 8, with a .steam chamber 24.
Patent GB-793317-A (GB)
Title: An improved arrangements for changing weft bobbins in a weaving loom
IPC: D03D45/20
Filed: 1955-07-25
Abstract: 793,317. Automatic bobbin - changing looms. SAURER. Ltd., A. July 25,1955 [Oct. 6, 1954], No. 21418/55. Class 142(2) The lowermost bobbin in each magazine compartment A-D is held in a carrier 15 and is moved, in the carrier, to a common magazine exit above the exhausted shuttle F and transferred thereto by a hammer 30. Each carrier is connected to a slide 11 sliding in a cam slot 7 in a plate 6, a spring holding each slide at the top of its slot. A pushing member 25 is moved across the tops of the compartments by a linkage 26- 29 connected to the change-box motion. When weft replenishment is initiated, a rod 22 and'a a bell-crank lever 23 cause the member 25 to push the slide 11 that lies beneath the member 25 down its cam slot and a full bobbin is moved to the magazine exit. A spring loaded lever 33 keeps the remaining bobbins in their compartment. The weft ends from the full bobbins are held by a comb.
Patent GB-868733-A (GB)
Title: Improvements in or relating to epoxide resin compositions
Inventor: PRITCHETT ERIC GEORGE KEMP
IPC: C08G59/50
Filed: 1958-07-04
Abstract: A resinous composition comprises an epoxide resin containing more than one epoxy group per molecule, a hardener for the epoxide resin and a disecondary amine having the formula R,NH,X, NH,R1 where X is a chain containing at least four atoms, and R and R1 are organic radicals which may be alike or different.  Specified epoxide resins are those obtained by reacting polyhydric phenols, particularly diphenylol propane, with epoxy compounds such as epichlorhydrin and dichlorhydrin. Preferred hardeners are amines such as diethylene triamine and diamino diphenyl methane and adducts such as diethylene triamine-ethylene oxide adducts.  Acid anhydrides and catalytic type hardeners are also referred to.  Preferred disecondary amines are the reaction products of one mol of a diprimary amine and two mols of ethylene oxide or acrylonitrile.  Other amines listed correspond to the above formula when R and R1 are selected from cyanoethyl, hydroxyethyl, hydroxypropyl, phenyl and allyl radicals and X represents a tetramethylene, hexamethylene, -C2H4O-C2H4-, <FORM:0868733/IV (a)/1> radical.  In examples a liquid epoxide resin of epoxide equivalent 190 is hardened by mixing with (1) a diethylene triamine-ethylene oxide adduct hardener and as modifier a liquid reaction product of one mol of hexamethylene diamine and two mols of acrylonitrile; (2) diamino diphenyl methane and the same modifier; (3) the hexamethylene diamine-acrylonitrile reaction product, the mixture being heated up to 120 DEG C.  Phthalic anhydride previously heated to 120 DEG C. is then added; (4) tetraethylene pentamine hardener and a modifier consisting of the reaction product of one mol of tetraethylene pentamine and five mols of acrylonitrile. Specifications 761,443 and 792,187 are referred to.
Patent GB-136895-A (GB)
Title: Improvements in or relating to Clocks.
Inventor: GERBER FREDERICK RODOLPHE
IPC: G04B37/14
Filed: 1918-12-21
Abstract: 136,895. Gerber, F. R. Dec. 21, 1918. Cases, clock. - Consists of an ornamental mount a resembling the front of a deep case and having the aperture b surrounded by a ring d resembling the band of a watch case to hold a watch movement and receive a dust-cap if this is not on the movement itself. A hinged wire strut f props the mount in a nearly vertical position.
Patent GB-965338-A (GB)
Title: Block bottom bag and method of making same
IPC: B65D30/24
Filed: 1962-06-04
Abstract: 965,338. Block-bottom bags. ST. REGISCONSOLIDATED PACKAGING Ltd. June 4, 1962 [June 8, 1961], No. 21462/62. Heading B8K. A bag is formed from heat-sealable fold-flat tube by folding in corners 17a (Fig. 3), and then heat sealing in position a cover 20. The cover 20 may consist of a flap 51, 52 (Fig. 11) and slits 53 may be formed in the tube before folding. A weld may reinforce the fold 60-60. The flaps 51, 52 of Fig. 11 are in opposite walls of the tube so that blanks can be cut from a tubular web without waste. A valve sheet 90 may be welded at 91 to the bag before the cover 20 is added, the corresponding end of the cover 20 being left unwelded. Further welds 93, 94 (Fig. 20) or 95 (Fig. 21) between the valve sheet and the cover sheet 20 may modify the shape of the valve. The valve sheet and the cover sheet 20 may extend beyond the margin of the bag, and may be welded at the edges to form a tube which can be folded over for closure. The tube may be gussetted. The valve flap may be sealed by heat-sealing, taping or gluing, and folded upwardly as shown at 98 in Fig. 26 to provide a pocket into which the projecting end of the valve tube formed with the cover sheet may be tucked. Alternatively a separate valve tube, which may be narrower than the bag, may be used (Fig. 30, not shown). A shield is used, when forming the welds for the bag, to prevent undesired welds from being formed. The welds may be formed by applying heat, by highfrequency heating, or by ultrasonic sealing. The bag may be formed of gusseted tube. Suitable materials are thermoplastic film, which may be laminated, and paper or fabric lined with thermoplastic sheet.
Patent GB-302331-A (GB)
IPC: B21D39/06
Filed: 1928-07-24
Abstract: 302,331. National Refrigeration Corporation, (Assignees of Dennison, F. E.). Dec. 15, 1927, [Convention date]. Tools.-The header plate 7 of a condenser &c., is provided with tapered holes 8, formed with annular grooves 15, to receive the ends of the tubes 10 which are expanded in place by means of an ordinary expanding tool 17. The grooves 15 are cut by a tool 9, having a stem 11 and an end 12 in the form of a 90‹ segment of a cylinder, provided with axially spaced ribs 13 the ends 14 of which constitute cutting edges, while the tube ends are forced into engagement with the walls of the grooves but are maintained out of contact with the bottom thereof.
Patent GB-893419-A (GB)
Title: Improvements in or relating to seats
IPC: B60N2/30
Filed: 1960-06-20
Abstract: 893,419. Seat adjustments. YOUNG SPRING & WIRE CORPORATION. June 20, 1960 [Aug. 24, 1959], No. 21514/60. Addition to 831,110. Class 52(2) In an improvement in or modification of the adjustable seat of the parent Specification the seat back 24 can also pivot to a forward position to permit passengers of a two-door vehicle to enter and leave the rear seats, guide members 75, 76 being provided in casing 31. As the seat back is moved forwardly to fold it surface 76a of member 75 engages tooth 53 on pawl 49 to urge the pawl out of engagement with teeth 47. As the seat back is elevated teeth 53 engage one of ramp surfaces 80 and teeth 53 at the other end of the pawl ride along surfaces 77, 79, a cam surface 78 moving pawl 49 upwardly and causing spring 70 to move over centre so that pawl 49 engages the first tooth 47.
Patent GB-1324612-A (GB)
Title: Epoxy estranes processes for their preparation and compositions incorporating them
IPC: C07J71/00
Filed: 1971-04-19
Abstract: 1324612 Epoxyestranes ROUSSEL-UCLAF 19 April 1971 [11 Feb 1970] 21519/71 Heading C2U The invention comprises compounds of formula  (wherein R is hydrogen or ethynyl and OR<SP>1</SP> is free, esterified or etherified hydroxy); and their preparation from the corresponding 17#-free hydroxy - #<SP>5(10)</SP> - monoenes (see Specification 1,324,613) by bromination and dehydrobromina - tion, followed when required by 17-esterification or etherification. The inventive compounds are said to possess antiandrogenic and progestomimetic activities, and may be made up with carriers into pharmaceutical compositions for oral, parenteral, rectal and topical administration.
Patent GB-350298-A (GB)
Title: Improvements relating to tramway and railway vehicles
IPC: B61F15/16
Filed: 1930-07-17
Abstract: 350,298. Ball and roller bearings. ELECTRO-MECHANICAL BRAKE CO., Ltd. and KEMP, A. W., Eagle Works,.West Bromwich. July 17, 1930, No. 21646. [Class 12 (i).] In a tramway or railway vehicle of the kind in which the axles are permitted a limited lateral movement relative to the frame, e.g. in negotiating curves, the end of each axle d is supported by means of a spherical or like bearing e that allows a rocking movement between the axle and the part of the axle-box a, while the axle-box itself is connected to the frame c by a movable connection that allows a limited rocking movement between these parts, such connection according to the invention being effected by a laminated bearing-spring b which, when the axle-box a is displaced laterally, is twisted and thereby exerts a torsional effort tending to restore the axle and wheels to a normally aligned position. Stops k on an annular portion h of the axle-box co-operate with the frame members c on each side of the vehicle to limit the lateral displacement permitted. On the inner sides the annular portions h of the axle-boxes are made spherical and coact with packing rings j and corresponding spherical surfaces i on the axle to prevent loss of lubricant. The spherical bearing between the axle and each axle-box comprises rollers or balls e carried by a ring f on the axle and engaging a spherical surface on the inside of an axle-box ring g.
Patent GB-319102-A (GB)
Title: Improvements in and relating to refrigerating apparatus
IPC: F25B41/06
Filed: 1928-07-26
Abstract: 319,102. Carpenter, T. E. July 26, 1928. Refrigerating, compression machines and processes for.-The usual expansion valve between the condenser 6 and the evaporator 5 of a compression refrigerating machine is replaced by a capillary tube 1. The tube is connected to the evaporator by a un:on having a central passage of greater sectional area than the tube bore. For machines of average capacity, the tube may have a bore 0.037 inches in diameter and a length of 36 inches.
Patent GB-606432-A (GB)
Title: Baking oven
IPC: A21B1/48
Filed: 1945-08-24
Abstract: 606,432. Bakers' ovens. INDUSTRIE-EN HANDELMAATSCHAPPIJ DE VUURSLAG, COMM. VENN. Aug. 24, 1945, No. 21695. Convention date, May 7, 1942. [Class 51(ii)] In a baking oven with a horizontal tunnel shaped baking compartment through which the products to be baked are carried on an endless steel band and in which heating elements are arranged above and below the conveyer band, the top and side walls of the baking compartment are formed, at least on the inner side, from a substance having a coefficient of emission heat lying between 3.5 and that for black bodies 4.96 said coefficient being expressed in units kilogram calories /square metres Î hours Î T<4>= (where T = the absolute temperature). A further factor which may influence the choice of material is a baking factor lying between the limits 2 and 7, said factor being the quotient of the coefficient of conductivity expressed in the units kilogram calories / metres Î hours Î ‹C. and the specific heat expressed in the units kilogram calories / kilograms Î ‹C. Typical substances fulfilling these requirements are concrete, glass or tile materials.
Patent GB-894328-A (GB)
Title: Glass to metal seals
IPC: C03C3/17
Filed: 1960-06-21
Abstract: 894,328. Glass compositions. CORNING GLASS WORKS. June 21, 1960 [July 1, 1959], No. 21714/60. Drawings to Specification. Class 56. [Also in Group XXXVI] A sealing glass has a composition consisting essentially by weight of 38 %-42 % P 2 O 5 , 20%-25% Al 2 O 3 , 13%-17% Na 2 O, 8%-15% K 2 O, 4%-6% B 2 O 3 , 4%-7% Z n O and 0%-3% of one or more other divalent metal oxides the total of all divalent metal oxides being 4%-10% and the total of all alkali metal oxides being 25 % to 29 %. The preferred composition is 40% P 2 O 5 , 23% Al 2 O 3 , 15% Na 2 O, 11% K 2 O, 5%B 2 O 3  and 6% Z n O. The glass is used for sealing to metal having an expansion coefficient of at least 175 x 10<SP>-7</SP>/‹C. (see Group XXXVI).
Patent GB-217586-A (GB)
Abstract: 217,586. Deventer, H. R. van, June 14, 1923, [Convention date]. Combined w i t h electric condensers; cases. - A wireless high tension battery is provided with a bridging condenser 8 housed within the casing of the battery. The condenser may be embedded in the wax filling 12, or it may be housed in a well provided in the casing. The well may be left open at the top or closed by a piece of fibre &c. or filled with wax. The condenser is provided with two terminal leads 9, 10, the latter of which may be connected to any one of the battery terminals. The lead 9 is permanently or removably connected to the negative terminal 2.
Patent GB-382661-A (GB)
Title: Improvements in or relating to the control of electric motors
IPC: B66B1/44
Filed: 1931-07-30
Abstract: 382,661. Controlling motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and ADKINS, B., 13, Fisher Avenue, Paddox, Rugby. July 30, 1931, No. 21778. [Class 35.] A control system for stopping a commutator A.C. motor 2 driving a lift &c., comprises a stop 14 for the brush-shifting gear of the motor, which stop is positioned automatically according to the load on the motor so that, when the gear is returned towards its slow speed position, it is arrested by the stop in such a position that the lowest speed of the motor is independent of the load, whereupon the application of a brake stops the lift in a definite position. The stop 14 is moved by a cam 12 operated by a torque motor 8, which is energized according to the secondary current of the motor 2 through a transformer 7, and operates against a spring 13. Means are provided to retain the cam in the position it attains during full-speed running of the motor 2 until after the latter has come to rest. The torque motor 8 is shown as being of the polyphase commutator type, but it may be an induction or a series commutator motor. The cam 12 may be operated by movement of the stator of the main motor 2 against the action of a spring.
Patent GB-694281-A (GB)
Title: A work piece holder
IPC: B23Q16/00
Filed: 1951-09-17
Abstract: 694,281. Workholders for grinding. ALEXANDER MACHINERY, Ltd., G. H. (Kankakee Tool & Die Works, Inc.). Sept. 17, 1951, No. 21781/51. Class 60. A work-support for grinding machines or the like comprises a table 21 having sine-bar adjustment, means for retaining the workpiece-28, and a pair of axially-spaced apertures 19, 20 corresponding with a pair of apertures 15, 16 in a base 10 to which the table is pivoted by a pin 33 passing through either of the apertures in the base and one of the aperture in the table, a pair of rods 42, 43 secured to the table and having a cylindrical underface, and a fiducial surface 41 on the base to support a gauge block 51 which engages beneath the rod furthest from the pin 33 to set the angle of inclination of the table. The workpiece 28 may be held by a chuck 27 and a tailstock 30 and rotated beneath a grinding wheel 31, to produce the tapering surface 32, by an electric motor 26 driving the chuck 27 through gears or a belt and pulleys (not shown). The base 10 may be held by a magnetic chuck on the grinding-machine and has a pair of lugs 12, 13 at each of its ends to either of which the table 21 may be pivoted by a pair of pins 33. After setting the slope of the table with a gauge block 51, the table is locked by tightening the nuts 37, Fig. 3, on the pins 33 against washers 36, the heads 34 of the pins 33 being secured against rotation by pins 38. The rod 42 may be held against the block 51 by a screw 54 having a spherical head 53 bearing in a spherical seating 52 and engaging threads in a pin 56 received in the apertures 15, the pin 56 being centred in the base by optical means (not shown). Alternatively, the screw 54 may have a countersunk head to engage a washer having a .spherical lower surface.
Patent GB-1525794-A (GB)
Title: Flameproofed polymeric organic materials and methods of production thereof
IPC: C08L33/18
Filed: 1976-05-26
Abstract: 1525794 Phosphorus containing flameproofing agents SANDOZ Ltd 26 May 1976 [30 May 1975 22 Aug 1975 5 Nov 1975 18 Nov 1975 27 Nov 1975] 21808/76 Headiing C2P Also in Divisions C3 and D1] Compounds of Formula I<SP>1</SP> wherein n is zero or 1 and Z<SP>1</SP> is oxygen or sulphur may be produced (a) in the case when n is zero and Z<SP>1</SP> is sulphur by eliminating hydrogen and sulphur simultaneously or sequentially from a compound or mixture of compounds of Formula II or (b) in the case when n is 1 and Z<SP>1</SP> is oxygen, by reacting a compound or mixture of compounds of Formula III  with a compound of Formula IV in a ratio of III : IV of 2 : 1. In the formulae above, X 2  is oxygen or sulphur, A is a radical- OR 1  or a radical-NR 9 R 10  wherein each R 1  independently is an aliphatic, cycloaliphatic or aromatic radical optionally containing halogen and/or alkoxy substituents subject to provisos stated in the Specification, R 9  is an aliphatic or cycloaliphatic hydrocarbon group optionally containing halogen substituents or an aromatic group optionally containing halogen and/or alkoxy substituents, R 10  is hydrogen or a radical R 9 , or R 9  and R 10  together with the nitrogen atom to form a heterocyclic ring; R 4  and R 5  independently is hydrogen, alkyl (1-4C), CH 2 Cl, CH 2 Br or phenyl, or R 4  and R 5  form a cyclohexylidene, cyclohexenylidene or 3,4-dibromocyclohexylidene ring, R 6  and R 8  is independently hydrogen or alkyl (1-4C) and R 7  is hydrogen or methyl. These definitions are subject to a number of provisos stated in the Specification. In the compounds I<SP>1</SP>, when n is zero, Z<SP>1</SP> is sulphur and at least one of R 4  and R 5  is other than methyl, and, when n is 1, Z<SP>1</SP> is oxygen. In examples, a compound of the Formula 34  is prepared by reacting triphenyl phosphene with a reaction product of diphosphorous pentasulphide and 2,2-dibromomethyl-1,3-propane diol which has been treated with aqueous ammoniacal iodine/potassium iodide. In a further example, a compound of the Formula 42 is prepared by reacting a compound of Formula 2a with a sulphur powder in the presence of pyridine, and subsequently treating the reaction product with a compound of Formula 2b
Patent GB-376042-A (GB)
Title: Improvements in or relating to window casements
IPC: E05D15/50
Filed: 1931-07-30
Abstract: 376,042. Window fastenings ; hinges. ASPELIN, H., 3, Borgmõstare-brinken, Helsingfors. July 30, 1931, No. 21809. Convention date, Oct. 28, 1930. [Classes 44 and 65 (ii).] A casement window is adapted to be pivoted about either vertical edge on a pair of oppositely-slidable pivots 15, 16 which are protruded into sockets in the frame by a hand operated plate 4 a n d links 12 connected to the pivots by links 2. The upper and lower pivots are connected respectively by pivoted levers 6 by which when those at one side are retracted those on the opposite side are protruded. Each link 6 engages a recess in one bolt 16 and a cut-away part of the opposite bolt 15, so that the retracted bolts may be operated by hand to act as fasteners, the levers 6 moving during the fastening movement in the cut-away parts of the bolts 15. The rotation of the plate 4 is limited by flats thereon. The window may be removed by retracting the pivots when in an opened position.
Patent GB-1483277-A (GB)
Title: Watch case
IPC: G04B39/00
Filed: 1975-05-21
Abstract: 1483277 Watch cases SUWA SEIKOSHA KK 21 May 1975 [22 May 1974] 21887/75 Heading G3T A watch glass 22 is attached to a case body 21 by means of a bezel 23 a portion of which fits within the body and is detachably secured thereto by a spring 24. As shown the glass and a sealing gasket 25 are held between a lip 23c of the bezel and a ring 26 which is supported by the bezel. The glass may, however, be cemented to the bezel Fig. 2 (not shown). The spring is in the form of a plate fixed in a groove 23a of the bezel and engaging an inclined inner surface 21a on the body. The body may be cut away at a point adjacent the lower side of the bezel for insertion of a prising tool, and there may be a further gasket (47), Fig.7 (not shown) between the bezel and the body.
Patent GB-475484-A (GB)
Title: Improvements in and relating to type wheels
IPC: B41K3/08
Filed: 1937-08-09
Abstract: 475,484. Type - wheels. HUGHES, R. M. (Markem Machine Co.) Aug. 9, 1937, No. 21922. [Class 100 (iv)] In a type-wheel comprising, as described in Specification 221,158, [Class 100 (iv)], detachable types 3 having fins 6 secured in slots 5 in radial projections 2 on the type-wheel, the fins are flush with the projections and are made of harder material to provide surfaces for receiving wear caused by the setting-wheels that gear with the projections.