baber/WOPTO huggingface dataset:
Patent GB-672200-A (GB)
Title: Ornamental stitching attachment for sewing machines
IPC: D05B21/00
Filed: 1950-10-20
Abstract: 672,200. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Oct. 20, 1950, No. 25596/50. Class 112. Feed by presserfoot.-A sewing-machine attachment for producing various forms of ornamental stitching by lateral shifts of the work in combination with the normal feed comprises a frame F for attachment to the presser-bar, a work-shifting member 12 mounted to oscillate horizontally on the frame, a horizontal shaft 30 bearing in and removable from members 2 of the frame and actuated step-by-step by the needle-bar, a pattern cam 46 secured to the shaft and operatively connected to the work-shifting, member 12, and a casing 54 which, when in position, prevents removal of the shaft. In the form shown, the shaft 30 carries, forming a unit with it, the usual needle-bar actuated fork-arm 37 and ratchet gear 38, and has an enlarged portion 32 which may be passed into a bore in the cam 46 to carry the latter, the cam and shaft being locked together for rotation by a pin or pins projecting from the inner end face of the portion 32 entering a hole or holes 36 in a radial face on the cam. In assembly, the cam is placed in position between the members 2 and the shaft assembly is then inserted, after which the casing 54 is placed over the members 2, engaging the outer face of the enlarged portion 32 of the shaft to prevent withdrawal of the latter; the cam can thus be'readily changed for another of different form to give a different arrangement of stitches. The cover 54 may be secured, if desired, by a finger-screw at 59. The shank 11 of the workshifting member 12, which has on its underside oppositely-facing sets of longitudinal teeth, has a roller stud 23 for engagement with the camtrack 49 at the underside of the cam and is prevented from endwise movement by engagement of the stud 23 with a transverse slot in the baseplate 1 of the frame F; it is slotted longitudinally to receive a pivot-pin carried by the front end of a slide 18, the amplitude of lateral movement of the member 12 produced by a given camthrow being determined by the position of the pivot-pin. The slide 18 is guided at its rear end by a slot engaging a bolt 53, and is provided with a finger-piece 24 and a side flange 19 which is slotted to receive a finger-screw whereby it is clamped to the frame F in the required adjusted position. The bolt 53 carries a leaf-spring 52 which engages the cam to hold the latter still during the backward movement of the pawl 39; this spring also lifts the cam, when the shaft is withdrawn, to facilitate its removal. The pawl 39 has a finger-piece 43 whereby it can be put out of action if required, the spring 42 then riding into a notch in the end of the pawl to hold it up.
Patent GB-481612-A (GB)
Title: Improvements in the manufacture and production of butadiene
IPC: C07C11/167
Filed: 1936-09-21
Abstract: Butadiene is prepared by reacting butenes under mild conditions with less chlorine than is necessary for complete saturation of the double bonds, leading the products at above 500 DEG  C. with such a high rate of flow over catalysts promoting splitting off of hydrogen chloride that the gas is exposed to the catalyst for less than one second, and treating the crude butadiene obtained at elevated temperatures with agents capable of binding hydrogen chloride and then, if desired, with agents binding acetylene. With initial materials containing a high proportion of butenes, an amount of chlorine a few per cent lower than the theoretical is used; with low proportions of butenes, only about 80 per cent of the chlorine theoretically necessary.  Reaction may be effected in the gaseous phase at not more than about 70 DEG  C. or in the liquid phase at below - 50 DEG  C.  Butene-containing mixtures comprising, for example, n- and iso-butenes and butane may be used.  The butylene chloride, preferably after removal of any dissolved butane or butenes by heating, may be passed over silica gel, bleaching earths or active carbon or filler bodies which become laden with lustrous carbon under reaction conditions.  Pressure may be atmospheric or less, and diluent gases such as nitrogen, hydrogen or steam may be present.  In an example, 250 g./hr. of the butylene chloride are passed at 625 DEG C. and 20 mm. over silica gel.  The crude butadiene may be passed over lime, soda lime or sodium hydroxide at about 350 DEG  C., then treated if necessary with copper or mercury compounds, e.g. ammoniacal cuprous salt solution, and finally distilled to yield a readily polymerizable product.  The first Provisional Specification includes an example wherein the butylene chloride is led with water at 450 DEG  C. and 1 atmos. over titanium dioxide.  The second Provisional Specification includes the treatment of butylene chlorides from any source with the catalysts splitting off hydrogen chloride.
Patent GB-256563-A (GB)
Abstract: 256,563. Mack, M. Aug. 4, 1925, [Convention date]. Accumulators.-In a hydraulic air-loaded accumulator, the head at the air end is provided with a spring-closed valve 30, which is opened at the end of the stroke of the dividing piston 2, so as to put the water end to exhaust through a pipe 31 and outlet 32, to prevent the occurrence of excessive pressure. The valve may also be opened by a screwed member 34 when it is desired to empty the accumulator. Air is supplied through an inlet 22 and non-return valve 23, and the air space is connected to reservoirs through a duct 24. The piston 2 slides between stops 4, 5 on a slidable rod 3, which controls the supply of liquid. The Specification, as open to inspection under Sect. 91 (3) (a), states that the rod 3 is connected to another slidable rod provided with cam members adapted to actuate valves. This subjectmatter does not appear in the Specification as accepted.
Patent GB-225019-A (GB)
Title: Improved means for mounting lamps or other articles on a belt or the like
IPC: A45F5/02
Filed: 1923-10-16
Abstract: 225,019. Bladon, W. E. Oct. 16, 1923. Attaching lamps &c. to wearing-apparel.- Means for attaching lamps or other articles to belts &c. comprise a slide on one part adapted to engage a guide on the other part, one of the parts being provided with a spring having a head' adapted to engage a shoulder or opening in the other part to lock the two parts together. The slide comprises a plate 9 secured to a member 7 provided with lateral extensions 8 for threading on a belt, the edges of the plate being adapted to engage in a slotted channel plate 3 secured to the back of the lamp or other article 1. A plate spring 12 is secured at its lower end behind the member 7 and is formed with a head having an inclined face 13 and a shoulder 14 so that, as the parts are engaged, the spring rides over the part 4 at the end of the slot in the channel plate 3 until the shoulder 14 engages over the top edge of the channel plate. A housing 15 for the spring 12 may be provided at the back of the member 7. In a modification, the plate 9 is formed integrally with the member 7.
Patent GB-1106900-A (GB)
Title: Devices for restricting fluid flow
Inventor: EMSLEY GEORGE MICHAEL
IPC: G21C15/02
Filed: 1965-06-18
Abstract: 1,106,900. Restricting fluid-flow. NUCLEAR POWER PLANT CO. Ltd. and A.E.I.- JOHN THOMPSON NUCLEAR ENERGY CO. Ltd. [trading as NUCLEAR POWER GROUP]. March 14, 1966 [June 18, 1965], No. 25830/65. Heading G3H. A device for restricting the flow of fluid in the upper end of a fuel channel in a gas cooled nuclear reactor comprises a freely movable body member 2 adapted to be supported against a fixed seating 3 by a plurality of fins 4 which define passages between the body member and the seating to permit the restricted flow of fluid therethrough in the direction of the arrows C, the duct 1 and body member 2 being so dimensioned and shaped relative to one another that the pressure of fluid flowing through the device exerts a net differential force on the body member which acts in a direction opposite to the direction of fluid-flow to maintain the body member in contact with the seating. Fins 5 stabilize the body member and a collar 6 enables it to be lifted off the seat.
Patent GB-504615-A (GB)
Title: Improvements in and relating to labels for container bodies formed by winding strip material
IPC: B65C3/02
Filed: 1937-09-24
Abstract: 504,615. Containers wound from strip material; labels ; printing processes. TREPUR PAPER TUBE CO., Ltd., KANE, W., and TRAPP, A, A. Sept..24, 1937, No. 25929. [Class 99 (ii)]. [Also in Groups XV and XVI] Containers, made by helically winding strip material on a mandrel to form a tube from which the containers are cut, are labelled,by a continuous strip applied during the winding operation and the label has a design arranged on it in sections so that a eomplete design is formed by one turn of the label round the tube. A flat bed or rotary printing unit may be used to print the design on the label and a plurality of units may be used to produce a coloured'design. When a rotary unit is used, the diameter of the printing cylinder may be such that sections for producing several designs may be arranged around its circumference or the width of the drum may be increased so that several strips side by side are printed simultaneously. The strip may be led directly from the printing mechanism to the tube winding apparatus and adhesive applied to one side of it before it is wound on the tube.
Patent GB-322768-A (GB)
Title: Improvements in the impregnation of fibrous materials
IPC: B27K3/15
Filed: 1928-09-10
Abstract: 322,768. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 10, 1928. Emulsions, making.-Compounds of metals having a specific gravity of 5 or more, for example, copper, iron, mercury, manganese, zinc and lead, with the crude distilled or saponified more or less oily oxidation products of waxes, such as paraffin wax or montan wax, or substances containing the same are employed, per se or in admixture with water, for impregnating fibrous materials. Dyestuffs soluble in water or in fats may be added to the metallic compounds, for example, methylene blue base, finely divided mineral or organic pigments and colour lakes such as chromium colours, Cassel brown and the Barium lake of Lithol Red. Preserving agents may also be added; for example, phenols, phenol resins, formaldehyde, lignine sulphonic acid salts, mercury preparations and phenolic tar oils. Natural oily or fatty materials may also be added, for example soaps (resin soap, lard soap, oil soap, naphthene soap), waxes, resins, fats, and mineral oils, particularly bituminous or shale oils. The metallic compounds are soluble in drying and non-drying oils, fats and waxes; for example in linseed. soya bean or train oil or in petroleum or other mineral oil, or in montan wax; or in organic solvents or diluents such as benzine, benzene, solvent naphtha or synthetic turpentine. Driers such resinates. linoleates, naphthenates, benzoates or stearates may be added; also filling materials such as heavy spar, Kieselguhr or bitumen and stabilisers such as substances of a resinous tarry or bituminous nature and perfuming or deodorizing substances such as nitrobenzene may also be added. Dispersing agents may also be added to increase the emulsifying property of the compounds ; for example aromatic sulphonic acids, alkylated sulphonic acids, sulphonated oils and sulphite cellulose waste liquor. In an example 100 Kgs. of the conversion product obtained by heating a crude oxidation product of paraffin wax in the presence of water with about 5 per cent its weight of lead acetate, 500 Kgs. of soya bean oil or mineral oil, 500 Egs. of benzine, 10 Kgs. of Cassel brown, 0.2 of phenol and 2 Kgs. of a drier such as cobalt resinate or copper naphthenate are mixed together and used as such or after emulsification with 200-300 Kgs. of water to which about 5 Kgs. of the sodium salt of butylated naphthalene sulphonic acid or 70 Kgs. of sulphonated oleic acid or 2 Kgs. of the sodium - salt of cholic acid have been added.
Patent GB-761663-A (GB)
Title: Improvements in or relating to focussing magnet systems for cathode ray tubes
IPC: H01J29/68
Filed: 1953-09-21
Abstract: 761,663. Electron lenses. GOULD, J. E. Aug. 18, 1954 [Sept. 21, 1953], No. 25935/53. Class 39(1). A magnetic focussing system for a cathode ray tube preferably a television receiver comprises three or more permanent magnet blocks 1, Figs. 2, 3 mounted radially around a ring 3 of mild steel or sintered iron which serves as one pole, the magnet blocks being magnetised in the radial direction, and the second pole is formed by a mild steel plate 4 axially spaced from ring 3 and having its periphery bent over at 5 to contact the outer ends of the magnet blocks 1. Ring 3 and plate 4 may be relatively adjustable to vary the axial gap between them. The magnet blocks of which there may be three (as shown) or six, are equally spaced circumferentially and mounted on flats 2 of ring 3; they may consist of " Alcomax III " (Registered Trade Mark) which is an alloy of Ni, Al, CO, Cu, Cb, Fe and " impurities " the proportions of which are given. The outer ends of the magnet blocks may be curved to match the curvature of flange 5. A triangular support 6 has flanges 7 contacting members 1, 3 and flaps 8 fitting over three flats 9 on ring 3. A washer 10 and three rivets 11 hold members 1, 3 against support 6. The structure so far described has a magnetic field distribution with unequal positive and negative peaks and with a large stray field on the right hand side, Fig. 3. By adding a second mild steel pole plate 12 the positive and negative peaks are made approximately equal, the field decreasing rapidly on each side of the assembly. By producing axial adjustment of at least one of plates 4, 12 with respect to ring 3 to reduce the axial gap both field peaks are reduced in amplitude by equal amounts. Image rotation is eliminated and the small leakage field on the left hand side, Fig. 3, does not interfere with the scanning coils or ion trap magnet. As shown, three slots 14 and screws 15, 16 enable 12 to be rotated (with an axial component of movement) relatively to ring 3. Screw 16 is larger than the others and can be used to lock members 4, 12 together after adjustment. Two holes 18 are tapped so that a handle can be fixed to 12 to assist in its adjustment. In a modification, Fig. 4 (not shown) both the inner and outer ends of the magnet blocks are flat and are mounted on flats on the members they contact. The assembly can be magnetized by means of two pancake coils, one on each side connected so as to produce initial repulsion and through which a heavy current is momentarily passed.
Patent GB-244424-A (GB)
Title: Improvements relating to the treatment of impure molten metal and molten metallic masses
IPC: C22B13/06
Filed: 1925-10-17
Abstract: In a method of removing metallic ingredients from molten metallic masses, for example arsenic, tin, or antimony from lead, of the kind comprising the use of an oxidizing agent, there is used as the oxidizing agent an oxysalt of one or more metals capable of combining with the metallic mass and having less affinity for oxygen than has a metallic ingredient to be removed. The oxidizing agent may be spent reagent resulting from previous treatment of metal with caustic alkali and an oxidizing agent such as sodium nitrate; the spent reagent may be thereby regenerated for further use.  The spent reagent may be used as the sole oxidizing agent, or along with sodium nitrate &c.  Tin and arsenic may be removed from lead by the use of a reagent containing sodium antimonate along with caustic soda and preferably sodium chloride, the antimony passing into the lead and the tin and arsenic being removed as sodium stannate and arsenate; similarly, arsenic may be removed by the use of sodium stannate, the tin passing into the lead and sodium arsenate being formed.  If required, antimony may subsequently be removed from the lead in known manner.  The apparatus used is preferably that described in Specifications 184,639 and 199,660, [both in Class 82 (i), Metals, Extracting &c.].
Patent GB-480185-A (GB)
Title: Improved sight for firearms such as light or heavy machine guns and the like
IPC: F41G3/00
Filed: 1936-09-26
Abstract: 480,185. Gun sights. VOROBIOFF, A., and HERCKELBOUT, L. L. E. E. Sept. 26, 1936, No. 26120. [Class 92 (ii)] The correction to the angle of training to take account of the relative speed of gun and target is obtained by projecting into the field of view of the sight a luminous grid the vertical elements of which are automatically spaced to suit the relative angular. velocity of gun and target, the elements also representing the correction to be made per unit of range at that angular velocity. If # is the angular correction, # the angular velocity, d the range, and v the average speed of projectile, the lines of the grid are formed by luminous helices 20 each corresponding to a definite range and formed according to the law #=# d/v. The helices 20 are provided on an opaque drum D, Fig. 7, illuminated on the interior and rotated in accordance with # as described later. The apparatus shown in Figs. 3 and 4 is used when a stationary gun is firing at a moving target. The lines seen through a slit 11 by reflection from a mirror system I are spaced to suit the angular velocity. The latter is determined bv a second illuminated helix on a rotary drum P which appears as a moving illuminated horizontal dotted line across the grid when seen through a slit 9. The drum P is rotated by a variable-speed gear comprising a disc M driven continuously at constant speed and a roller 6 on a sliding circular rack L moved by the hand wheel J which rotates the drum D. The rack is feathered on a shaft N which drives the drum P through a differential gear R connected to the gun training gear by a pulley 10 ,to eliminate the effect of training on the rotation of the drum P. The handle J is adjusted until the target is stationary with respect to the moving dotted line and the drum D is then correctly set. Fig. 6 shows the sight applied to a gun mounted on an aircraft steered on a circular course round the target. The angular velocity is measured by a gyroscope Z controlled by a spring 14 and moving the arm 13 of an electrical resistance Y which together with an arm W and resistance U at the sight is included in the circuit of a Wheatstone bridge including a galvenometer X. The drum D is mounted on the shaft T of the arm W and is adjusted until the galvanometer reads zero. If the' course of the ajrcraft is such that the gun needs to be turned slightly, the cable gear 15 moves the arm W and upsets the balance of the bridge which is restored by steering the aircraft until X reads zero again.
Patent GB-1039764-A (GB)
Title: Coplymerisation processes
IPC: C08F291/00
Filed: 1963-07-03
Abstract: The graft polymerization process of Specification 1,004,146 is modified by the use of the complexing agent in a proportion of less than 0.01% based on the diene-containing monomer material. The examples describe polymerizing butadiene/methyl methacrylate and butadiene/acrylonitrile mixtures in aqueous dispersions of polyvinyl chloride containing, based on monomer weight, 0.001% of ethylene diamine sodium tetra-acetate.
Patent GB-1530038-A (GB)
Title: Fibre-forming glass composition
IPC: C03C13/02
Filed: 1976-06-25
Abstract: 1530038 Glass composition BAYER AG 25 June 1976 [28 June 1975] 26538/76 Heading C1M A glass consists essentially of, in weight per cent:- The glass may be prepared by melting batch materials at 1350-1550 C. The glass may be formed into fibres at 1250-1350 C. The fibres formed may be employed in reinforcing plastics materials, plaster, cement or low-melting metals, or in flameproof textiles.
Patent GB-463550-A (GB)
Title: Improvements in or relating to cables adapted for the transmission of high frequency alternating currents
IPC: H01B11/18
Filed: 1935-09-25
Abstract: 463,550. Cables. TELEGRAPH CONSTRUCTION & MAINTENANCE CO., Ltd., and DEAN, J. N. Sept. 25, 1935, No. 26582. [Class 36] In a high-frequency air-space cable of the kind comprising coaxial conductors held apart by longitudinal or helical ribs or fins of insulating material, the inner conductor is of stranded or tubular construction, or consists of wires lapped or braided on an insulating core, and the ribs or fins are formed wholly or mainly of guttapercha and/or balata which has been hardened by extraction of its resins and preferably also its protein and other ' dirt.' The ribs may be formed by extruding the hardened material in a plastic condition upon the conductor through a fixed or rotary die of spider or star cross-section. A thin sheath of insulating material, such as guttapercha substitute, or hardened guttapercha, may be interposed between the outer ends of the ribs and the return conductor to provide a surface on which this conductor, which consists of wire braiding or a lapping or wrapping of metal tape, may be applied. Specifications 307,390, 322,208, [both in Class 70], and 346,382, [Group V], are referred to.
Patent GB-1285863-A (GB)
Title: Hydrogenation catalyst and process
IPC: B01J21/12
Filed: 1970-06-02
Abstract: 1285863 Hydrogenation catalysts NIPPON OIL CO Ltd 2 June 1970 [3 June 1969] 26675/ 70 Heading B1E [Also in Division C5] Catalysts are prepared by passing through a water immiscible liquid a dispersion of particles of a water insoluble inorganic solid or hydrogel thereof in a hydrosol of basic aluminium sulphate or in a mixture of such a hydrosol and a hydrosol of silica, washing the spherical gelled product with water, subjecting it to a desulphating treatment, drying and calcining it to form a carrier, impregnating the carrier with an aqueous solution of a compound of a hydrogenatively active metal and calcining the impregnated carrier at above 350C. The inorganic solid or hydrogel may be alumina, aluminium hydroxide, silica, quartz, silica-alumina, clays, aluminosilicates, zeolites, activated carbon or an oxide, hydroxide or sulphide of iron, cobalt, nickel, molybdenum or copper.
Patent GB-284390-A (GB)
Title: Improvements in electro-magnetic relays
IPC: H01H50/26
Filed: 1926-10-25
Abstract: 284,390. Sterling Telephone & Electric Co., Ltd., and Blades, N. Oct. 25, 1926. Contact-making relays.- In a relay having an L- shaped armature 10 suspended on a knife edge 9 formed at the end of the yoke 3, the armature is kept in position by a thin plate 11 secured to the yoke and slotted at 12 to embrace a tongue 13 projecting from its dependent part. The plate 11 is formed with rounded projections 14 making point contact with the armature at its edges and similar projections 15 touching the armature on the side remote to the knife edge. The horizontal portion of the armature is of U-formation, the cross-bar engaging seats of contact springs 7.
Patent GB-880214-A (GB)
Title: Improvements in or relating to transport tanks having a substantially spherical wall
IPC: B65D88/72
Filed: 1960-08-02
Abstract: 880,214. Tanks. INTERCONSULT A.B. Aug. 2, 1960 [Aug. 8, 1959], No. 26703/60. Class 69 (1). [Also in Group XXX] In a substantially spherical transport tank for pulverulent or liquid materials the maximum width is reduced by fitting inwardly curving spherical cups 3, Fig. 2, on each side. The concave recess may be covered by flat discs 4 and secured as by welding.