baber/WOPTO huggingface dataset:
Patent GB-927586-A (GB)
Title: Process for making composite polyester yarns
IPC: D02G1/18
Filed: 1961-08-30
Abstract: Yarn which yields soft, uniformly bulky, knitted or woven fabrics (see Group IX) combines at least one group of continuous filaments of a polyester, e.g. polyethylene terephthalate or naphthalate, having a zero load residual shrinkage of 0-20% and a residual shrinkage at 0,05 grams per denier load of at least 1,2% less than the zero load residual shrinkage, with a second group of continuous polyester filaments having a zero load residual shrinkage at least 20% higher than the zero load residual shrinkage of the first group.  Residual shrinkage is defined as the capability remaining or existing in the filament or yarn for linear contraction under the specified tension in water at 100 DEG C. for an exposure time of five minutes, and methods of its determination are described.  The groups of filaments may be extruded from the same spinneret or several and/or separate spinnerets, and attenuated to the same final length and to produce similar properties of tenacity and, in consequence, of dyeability, but under different conditions, e.g. of "superstretching", i.e. drawing without orientation, heating, stretching and/or relaxing, to produce the different shrinkage properties.  As shown in Fig. 1, bundles 1,11, of melt-spun filaments 2, 21, pass around forwarding rolls 4, 41, which tension the filaments and determine the spinning speed.  Bundle 1 is forwarded to roll 5 which is heated to a temperature of 130 DEG -180 DEG C., roll 6 which is heated to a temperature up to 120 DEG C., a drawing or snubbing pin 9, and roll 7.  Bundle 11 is <PICT:0927586/IV(a)/1> <PICT:0927586/IV(a)/2> forwarded to roll 51, optionally around snubbing pins 11, roll 71, and may then relax as it is heated by a hot plate (not shown).  Rolls 5, 51, rotate at the same peripheral speed as rolls 4, 41, and the speeds of rollers 6 and 7 or 71 are progressively higher.  The filaments may also be heated by plates 10, 101, or roll 7.  Each roll co-operates with a canted separator roll 8.  In the process represented in Fig. 2, a group of filaments passes from roll 5 and separator 8, under a drawing pin 17 in a liquid bath 16, through guides 19, around draw rolls 18 which may be heated, and combines with another group of filaments emerging from draw rolls 181.  In other embodiments, Figs. 3 and 4 (not shown) all the filaments are drawn, and may be heated by rolls, curved plates and/or liquid baths, but one group only is subsequently relaxed or the two groups are relaxed to different extents.  Specifications 695,567 and 868,496 are referred to.
Patent GB-620723-A (GB)
Title: Improvements in or relating to differential gearing
IPC: F16H48/30
Filed: 1946-10-21
Abstract: 620,723. Differential gear. M'EWEN, E. G. Oct. 21, 1946, No. 31208. [Class 80 (ii)] To prevent spin, the two output shafts 1, 2 of a bevel differential gear 3 are connected to two elements, viz., the ring-gear 8 and planet-carrier 7, of a secondary epicyclic gear through toothed gears 4, 5 of such ratio that the third element, the sun 9 (or carrier or ring gear). of the said gear remains stationary when the output shafts 1, 2 rotate at equal or other predetermined relative speed so that by locking or braking at 10 the sun 9, differential action is prevented. The brake 10 may be set to. slip at a predetermined load or may be applied centrifugally when the relative speed exceeds a predetermined value, which in the case of a vehicle may be varied automatically with the gear-ratio.
Patent GB-276296-A (GB)
Title: Improvements in or relating to cooling vessels or cold stores
IPC: F25D3/04
Filed: 1926-12-10
Abstract: 276,296. Richter, A. Aug. 18, 1926, [Convention date]. Refrigerators, domestic, cooled by ice containers or other cooling- means arranged low down in the chambers and open at the tops so that access of the outer air is always provided, have walls curved in section, preferably to an oval form. The outer walls may consist of curved front and back members a and flat sides and bottom, formed of ply wood, and the inner walls i may be of sheet aluminium spaced by insulation k from the outer walls, the insulation being thicker towards the bottom and colder part. The inner and outer walls are connected only at the top by a wood ring r, and a curved perforated lid d is provided to keep out insects &c. When ice is used, it is placed in a container g, spaced by insulation n from the inner metal wall i so as to prevent too great heat transfer. The articles to be kept cool may be placed on gratings o, u carried by stands s in contact with the ice or ice-water; or bottles may be inserted directly into the ice container through a gap in the lower grating u.
Patent GB-314296-A (GB)
Title: Improved paper-finger for typewriting machines
IPC: B41J13/10
Filed: 1928-10-30
Abstract: 314,296. Fairmeather, W. C., (Underwood Elliott Fisher Co.). Oct. 30, 1928. Sheet and card guiding arrangements.-A folding paper-finger is formed with a loop for engaging the platen, and a bend for deflecting a sheet or card towards the loop, and the pivot is so arranged in association with a spring that the paper-finger can rise slightly when the platen is shifted or a stiff sheet or card is inserted. The paper-finger 18 shown in the Figure is formed with a, loop 31 for engaging the platen 12, and a bend 30 for deflecting the sheet, the bend having an extension 32 which is soldered to the upper part of the paper-finger. The front bar 10 of the carriage is provided with an angular bracket 20 receiving a pivot screw 19 which passes through holes in an angular bend 27 on the paper-finger, the upper hole being elongated. A bowed spring 22 abutting on the bar 10 engages the bend 27 and is formed with shoulders 23 engaging the bracket 27, and a lug having an elongated hole through which passes the screw 19. The spring holds the paper-finger in either the operative or folded position, and permits the paper-finger to rise slightly when the platen is shifted or a stiff sheet or card is inserted.
Patent GB-652038-A (GB)
Title: Spark plug and method of making the same
IPC: H01T13/39
Filed: 1947-11-27
Abstract: 652,038. Sparking plugs. BENDIX AVIATION CORPORATION. Nov. 27, 1947, No. 31460. Convention date, Nov. 27, 1946. Addition to 650,797, [Group XXIII]. [Class 7(iv)] In a spark plug construction comprising a tubular insulator 6 and a terminal element 16 interconnected to a sparking element 14 located in the insulator bore by a wire connector 20, of such material as molybdenum, having a U-shaped end adapted to have spring contact with a socket 19 formed in the terminal element 16 during assembly, it is arranged that the sparking element 14, which substantially fills a longitudinally extending portion 8 of the bore, comprises a section of metal which has been compressed within the bore of the insulator in a longitudinal direction and thereby expanded radially. A disc 15 of silver solder is used to join a platinum sparking tip 12 to the silver element 14. When the parts are assembled the whole is heated and pressure is applied to the element 16 so that the plastic sealing material 22, which is preferably an insulator, is caused to compress element 14 and expand it radially within the bore portion 8. The pressure is removed after the parts have cooled. In a modification, the disc 15 is dispensed with and contact between element 14 and tip 12 established during the assembling operation. Specifications 565,645 and 565,667 are referred to.
Patent GB-653600-A (GB)
Title: Improvements in or relating to wire fences
IPC: E04H17/10
Filed: 1948-12-06
Abstract: 653,600. Cleats. CORRIE & CO., Ltd., J. B., and CORRIE, B. J. B. Dec. 6, 1948, No. 31548. [Class 109] [Also in Group I] In a wire fence of the kind having upstanding posts with wires 12 extending between them and in which at least one end of each wire is anchored so that it may be tensioned by straining means at the other end or intermediate its length, the wire 12 is anchored by passing it through a hole 13 in a post and closely winding it around a short rod or like member 17 which engages the back of the post, the transverse dimension of the rod being sufficiently small and the stiffness of the wire such as to prevent unwinding when the wire is tensioned. The wire is twisted round a reduced neck 18 of the rod 17 and then through a transverse aperture or slot 22 in the rod. It is tensioned from the far end as by a winch as described in Specification 520,089. [Group I], and the end 23 which protrudes through the aperture engages the post to help to prevent rotation of the rod and consequent unwinding of the wire from the neck. The wire may pass successively through two apertures or slots in the rod. Tommy bars may be inserted in these apertures to initially twist the wire round the rod. In the Provisional Specification it is stated that: the wire may be twisted upon itself to prevent withdrawal from the post and may bear against a washer.
Patent GB-406427-A (GB)
Title: Improvements in mechanism for actuating collapsible cages used on spindles in apparatus for balling yarn, thread and such like
IPC: B65H54/64
Filed: 1932-11-09
Abstract: 406,427. Balling - machines. AYRTON & CO., Ltd., W., and BAINES, E. N., Gorebrook Ironworks, Longsight, Manchester. Nov. 9, 1932, No. 31595. [Class 120 (ii).] In mechanism for actuating collapsable cages used for balling yarn, the boss a for operating the cage A is provided with a portion a<1> which is mounted in an annular recess b<1> in the plate b and is retained in position by the cover plates d, the plate b being raised or lowered by the rod c<1>.
Patent GB-428388-A (GB)
Title: An improved method of joining the ends of metal strappings for cases, bales and the like
IPC: B65D63/04
Filed: 1933-11-13
Abstract: 428,388. Baling. PACKERS' SUPPLY CO., Ltd., and VAUGHAN, E. G. S., Agripta House, Burlington Road, New Malden, Surrey. Nov. 13, 1933, No. 31601. [Class 94 (i)] The ends of metal strappings on cases, bales, &c., are secured by ridging the overlapping ends 1, 2, longitudinally and bending down tongues 4, 6, Figs. 1, 2 on each side of the ridge or 9, 11, Figs. 3, 4, at the edges into the space below the ridge. Alternatively two ridges are formed, and tongues are bent upwardly into the groove between them.
Patent GB-1473963-A (GB)
Title: Sheet comprising resin and asbestos fibres
IPC: C25B13/06
Filed: 1975-07-29
Abstract: 1473963 Asbestos fibre bonded sheet RHONE POULENC INDUSTRIES 29 July 1975 [31 July 1974] 31738/75 Heading D1R [Also in Division C7] A resin-fibre sheet, particularly a microporous separator for an iron cathode filter press cell used in the elecrolysis of brine is obtained by dry mixing asbestos fibres and at least one powdered mineral carrier substance, adding an aqueous dispersion of a polymer to the mixture and forming a sheet. Preferably the carrier substance is 2-50 micron diameter particles of calcium carbonate, or colloidal alumina and is removed by treating the sheet with aqueous acetic acid to render the sheet micro-porous. The resin may be a polymer of tetrafluoroethylene, hexafluoropropane or polychlorofluoroethylene or a mixture of said polymers, and contains a plasticiser. The sheet is formed from the mixture of fibres, carrier and polymer by rolling at 50C with at least one pair of rolls. The sheet is dried then fritted by heating above the melting point of the polymer e.g. to 330 to 370 for polytetrafluoroethylene for 2 to 20 minutes. The carrier particles are dissolved in acetic acid and the micro-porous diaphragm degassed by immersion in methanol and then in a vacuum. The elongation, rupture strength, thickness, permeability and relative resistance are specified. A reinforced diaphragm may be produced by forming the resin-fibre layer about a galvanised steel grid or by successively depositing several layers of different compositions. For each part by weight of asbestos the mixture to be formed into a sheet may contain 10-100 parts calcium carbonate, 1 to 100 parts polytetrafluoroethylene, 1 to 20 parts water and 0.5 to 2 parts plasticiser.
Patent GB-444680-A (GB)
Title: Improvements in or relating to rock drills
IPC: E21B6/06
Filed: 1935-11-16
Abstract: 444,680. Percussive drills. INGERSOLL-RAND CO., 15, Exchange Place, Jersey City, New Jersey, U.S.A. Nov. 16, 1935, No. 31829. Convention date, Dec. 19, 1934. [Class 124] The twist bar 51 has its head 52 formed with ratchet teeth 57. Pressure fluid acts continuously on its lower face 58 bringing its teeth into engagement with teeth 56 on the back head. With the valve 62 in the position shown, during the working stroke of the piston pressure air acts on the face 59 of the twist bar through passages 66, 65, disengaging the teeth 56, 57. On the return stroke passage 66 is exhausted, allowing the teeth to reengage and causing piston to rotate. To prevent rotation valve 62 is turned, connecting the passage 65 to the supply passage 64.
Patent GB-1383264-A (GB)
Title: Concrete cooling tower
IPC: E04H5/12
Filed: 1973-02-02
Abstract: 1383264 Cooling towers ECODYNE CORP 2 Feb 1973 [8 March 1972] 31957/74 Divided out of 1383263 Heading F4K The subject-matter disclosed is substantially as described in Specification 1,383,263 but the claims relate to the construction of the top deck of the cooling tower.
Patent GB-904259-A (GB)
Title: Improvements in or relating to the heating and/or melting of electrically conductivematerials
IPC: H05B6/32
Filed: 1959-09-21
Abstract: 904,259. Induction-levitation furnaces. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 21, 1959 [Sept. 30, 1958], No. 32018/59. Class 39 (3). An apparatus for levitating, heating and melting electrically conductive materials comprises a coil 10, Fig. 1, energized by alternating current to generate a magnetic field to heat and levitate a conductive charge, and a stabilizing " dock " member 13 which may be a saucer, disc, rod, cylinder, hollow or solid ring, is disposed above and coaxial with the coil axis to reduce by eddy current opposition a central region of the magnetic field to which the levitated charge tends to go, the stabilizing member 13 being cooled. The coil is also cooled. The " dock " member 13 is of copper, silver or of silver-plated copper. The leads 35, 36 to the coil 10 function as a coaxial line. Support 18 is slidable and can be tilted or wobbled for radial adjustment. It can thus be swung away to allow the charge to be introduced from the top which is preferable to introducing the charge from the bottom by cup 29. Cup 29 collects the charge after melting and can be raised and lowered by rod 30 actuated by a solenoid. The chamber 1 is of transparent or semi-transparent material such as " Pyrex " (Registered Trade Mark) and is sealed by neoprene gaskets 5 and has a filling of A, He or N 2  or is evacuated or is filled with air. The materials melted are Ni, W, Ni-Hf, Ni-Rh, Ni-Yttrium
Patent GB-1132419-A (GB)
Title: Improvements in or relating to labelled bags
Inventor: COLE DEREK ALAN
IPC: B65D33/00
Filed: 1967-07-12
Abstract: 1,132,419. Plastics bags; labelling. LAMSON PARAGON Ltd., J. G. SPARK, and M. E. SPARK, [trading as INDUSTRIAL ELECTRONICS]. 12 July, 1967, No. 32044/67. Headings B8F and B8K. [Also in Division B5. A gussetted bag of transparent plastics for holding bank notes carries a label for receiving particulars of the contents. The bag is heatsealed at one end and the other end can be heat sealed after filling. The labels are secured to a gussetted web (Fig. 1) before this is transversely sealed and cut at 26 to form the bags. The labels are detached from a backing strip 11 when this is drawn over a sharp edge 17 and are pressed on to the web, during a dwell in its movement, by a presser 23, 24. The feed of the backing strip is controlled by a photo-cell 22 detecting the edges of the labels. The web is formed by lay-flat tubing gussetted at 6 and its feed is controlled by photo-cells 7, 8 detecting marks which are subsequently covered by the label. A warning device may indicate if two bag markings (or two labels) are fed in succession without an intervening label (or bag marking).
Patent GB-1328019-A (GB)
Title: Process for the preparation of polyethylene terephthalate polymers which incorporate inorganic fillers therein
IPC: C08J3/20
Filed: 1971-07-08
Abstract: 1328019 Preparing polyester compositions AKZO NV 8 July 1971 [10 July 1970] 32076/71 Heading C3R A process for preparing a polyester composition comprises heating chips of amorphous polyethylene terephthalate, having a relative viscosity of at least 1À6, to a temperature in the range between 5 C. below and 27 C. above the glass transition point (Tg) of the polyethylene terephthalate and mixing an inorganic filler with the softened polymer in a rotating drum, heat being supplied to the drum. The drum may be filled with balls. Specified fillers are carbon block, titanium dioxide, iron oxide, cadmium selenide, microchalk, kaolin calcium carbonate and barium sulphate, and glass or asbestos fibres. The polyester may also be mixed with polyamides, ethylene-vinyl acetate copolymers, polypropylene and poly - 4 - methylpentene - 1. The example describes using polyethylene terephthalate homopolymer with a Tg in the region of 70 C. which is mixed with titanium dioxide at a temperature between 70 and 99 C.
Patent GB-603269-A (GB)
Title: High-frequency bonding apparatus
IPC: H05B6/50
Filed: 1945-11-28
Abstract: 603,269. Seaming non-metallic sheet material. SINGER MANUFACTURING CO. Nov. 28, 1945, No. 32086. Convention date, Dec. 7, 1944. [Class 42(i)] [Also in Groups XXXV and XXXVIII] In a system of seaming sheet materials of variable combined thickness by feeding the materials through a high frequency electric field, the frequency of the field is varied in accordance with thickness variations of the materials detected before influence by the field. In the Figure, sheets 1, e.g. of thermoplastic material, are seamed together by being drawn continuously between rollers 2, 3 which are driven by an A.C. motor 4, apply pressure to, and act as, H.F. dielectric heating electrodes for the sheets. Rollers 2, 3 are connected to a coil 29 inductively coupled to a coil 26 which together with a condenser 43 constitutes the tank circuit of a push-pull valve oscillator which includes valves 19, 19a and acts as the source of H.F. current. H.T. for the. oscillator is obtained through full-wave rectifier 16, 17 from A.C. mains 9. Variation in thickness of the sheets is arranged to cause inverse variation of the rate of feed by varying the relative position of coils 39 and 40, which are inductively coupled and connected in series opposition, so that the consequent variation of their resultant inductance varies the pulsating current supplied through a rectifier valve 35 to the primary of a transformer 38 the secondary of which is included in the grid cathode circuit of full-wave rectifier 33, 34 supplying the D.C. winding 36 of a saturable reactor 37 in series with the supply to motor 4. The speed corresponding to a given thickness is set by a rheostat 48 in series with coils 39 and 40. The voltage applied to the D.C. winding of saturable reactor 37 is pulsating and is also applied through leads 45 to one phase of a two-phase torque motor 42, the other phase of which is supplied through leads 44 from mains 9. Motor 42 serves to adjust condenser 43 so that the frequency of the H.F. oscillator is also dependent on thickness. With mains switch 10 closed motor 4 is started and oscillator H.T. switched on by closing switch 10 to energize relay 11, the condition of the latter being indicated by pilot lamps 46, 47. Autotransformer 21 serves for setting oscillator H.T. voltage.
Patent GB-875716-A (GB)
Title: Improvements in or relating to data storage devices
Inventor: JAMES JOHN BERNARD
IPC: G11C11/06
Filed: 1958-10-08
Abstract: 875,716. Magnetic storage devices. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Oct. 1, 1959 [Oct. 8, 1958], No. 32092/58. Class 38 (2). [Also in Group XXXIX] In a storage or switching device comprising a core of ferrite material having a substantially rectangular hysteresis loop and two stable saturation states, the heating due to hysteresis loss when the core is switched between the stable states is reduced by the use of a heat sink to which the core is solidly connected by a heatconducting path. As shown in Figs. 2 and 3, annular cores such as 1a, 1b, 1c are each encircled by a metal band of good thermal conductivity such as copper, brass or aluminium, the core windings 4 being wound over the band on each core. The ends of the bands 3 are flared and project outwardly from the cores so as to function as core supports and as thermal conductors to a heat sink comprising a metal, e.g. copper, bar 5, the flared ends being secured by screws 7 between bar 5 and a metal or non- metal strip 6. Alternatively the flared ends may be secured directly to the bar. The flared ends may also be bent over at right angles to provide feet for securing to a horizontal plate sink. In an alternative construction, Fig. 4, each core 10 is embedded in a thermosetting potting medium in a recessed brass stud 13, the stud being secured in an aperture in a heat sink plate 15 by a plastic nut 17 and a brass nut 16. The plastic nut includes a depression 18 for accommodating the potting medium and terminal posts 19 for the ends 11a, 11b of core winding 11. The potting medium has adequate thermal conductivity and may comprise the thermosetting resin " Araldite " (Registered Trade Mark) to which powdered aluminium or silica is added.
Patent GB-1139656-A (GB)
Title: Method and apparatus for gel permeation chromatography
Inventor: OWENS ELBERT GUY
IPC: G01N30/68
Filed: 1967-07-12
Abstract: 1,139,656. Cromatographic analysis. DOW CHEMICAL CO. 12 July, 1967 [22 July, 1966], No. 32101/67. Heading B1X. An aliquot of a solution in a volatile solvent of a non-volatile organic evolute is passed through a column of a particulate, microporous, cross linked, organic polymer 0.25 to 3.18 mms in diameter. The solute is eluted and the eluant deposited on a hot rotating, perforated, inert metal support which evaporates the solvent and carries the non-volatile solute residue into a hydrogen flame ionization detector for analysis.
Patent GB-618164-A (GB)
Title: A gauge for checking the under-cutting of undercut bores
IPC: G01B3/46
Filed: 1946-10-29
Abstract: 618,164. Gauging-apparatus. BLACKBURN AIRCRAFT, Ltd., and THARRATT, R. Oct. 29, 1946, No. 32108. [Class 106 (ii)] A gauge for checking undercut bores comprises two relatively movable members 1, 6 of complementary semi-circular sections, the first of which has at its end a projection 3 of corresponding shape and size to the undercut to be gauged such that, when the projection is positioned in the undercut, the second member 6 can only fully enter the bore if the undercut is sufficiently large. The gauge is rotated in order to test the whole undercut. The members 1 and 6 are tapered at the inner ends and, at the other ends, are formed respectively with an enlarged cylindrical portion 5 and a knurled tubular portion 8 in which the cylindrical portion slides. The member 1 is prevented from escaping from the member 6 by an inward projection at the outer end of the tubular portion 8. In order to permit entry of the projection 3 into the bore, its opposite sides have flat surfaces 12. Specification 570,735, [Group XXV], is referred to.