baber/WOPTO huggingface dataset:
Patent GB-142903-A (GB)
Title: Power operated automatic folding machine
IPC: A43D8/40
Filed: 1919-02-06
Abstract: 142,903. Percival, S., (Brostrom, C.). Feb. G; 1919. Folding edges of sheet material. -Relates to machines for folding sheet material, especially the edges of shoe vamps, and producing at will snipping-cuts in the edge of the material as it is folded, and comprises a folder-plough mounted on, and vibrated by, the work-feeding mechanism, with means for clamping and feeding the work intermittently; means for controlling and adjusting the depth of the snip cuts during the operation of the machine; and a pivoted table encircling, and adapted to fit over, the forward portion of the machine and to be swung up over the machine and out of the way as required. As shown, the work is fed by an upper feed-point 50, Fig. 3, co-operating with a lower feed-block 49. The feed-point 50 executes a circular motion and grips the work intermittently against the lower feed-block, which moves with an oscillating motion in an horizontal plane. Means are provided for separating the feed-points for the introduction of the work. A snipping-knife 76, adapted to co-operate with a knife 77 in the lower feedblock, is carried by a lever 75 pivotally connected to a crank-operated rod 88, to a three-armed lever 78 pivoted to the machine frame, and to a spring- retracted rod 73. Upon depressing a treadle, the upper feed-point and the lower feed-block are caused to approach one another to grip the work, and upon further depression of the treadle, the rod 73 is moved to the left to bring the snipping- knife into position to snip the material. The depth of the cut is determined by the depression of the treadle and by adjustable stops 82, 83 which limit the motion of the lever 78. The folder-plough 93, Figs. 11 and 12, is pivoted at 94 to a projection 95 of the plate which carries the lower feed-block and is provided with an extension 98 adapted to engage a fixed stop 100 to. cause the plough at each folding operation to be moved against the action of a spring 97, the operative face 96 of the plough being thus moved away from the feed-block 49 to assist the passage of the work. The folded material is struck by a hammer having an operative face 103, Fig. 9, and a projection having a diagonal edge 106, Fig. 11, presenting an elongated folding-edge close to a cut-away edge of the feed-block and extending diagonally to the direction of the fold. The hammer carries a spring-actuated retainerfinger 107 adapted to hold the work and to prevent it from being turned otherwise than around the feed-point. The work table 133, Fig. 3, is pivoted towards the rear of the machine and is adapted to be swung out of the way as required.
Patent GB-247935-A (GB)
Title: Improvements in radiators for internal combustion engines
IPC: F28F1/00
Filed: 1926-02-03
Abstract: 247,935. Soc. Anon. des Usines Chausson. Feb. 20, 1925, [Convention date]. Honeycomb-tube apparatus, for use with internal-combustion engines, are made from tubes, each of which has a pair of internal longitudinal ribs 5, 6 arranged opposite to one another and in contact under external pressure, the ribs tapering at their ends into the end portion of the tube. The tubes are made by stamping from a sheet of metal folded and the edges joined as at 10. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the provision of more pairs of ribs in a tube. This subject-matter does not appear in the Specification as accepted.
Patent GB-377951-A (GB)
Title: Improvements in and relating to the manufacture of chromium steel alloys
IPC: C21C7/00
Filed: 1931-01-30
Abstract: A process for the manufacture of corrosion-resisting chromium steels in which a chromium-containing iron bath is refined to decrease the carbon content and the chromium content is increased by reduction of the chromium oxide in the slag, is conducted in an induction furnace. The reducing agent may be ferrosilicon with ferromanganese, aluminium, calcium silicide, &c.  The slag may be stiffened during the refining stage by the addition of glass &c., to avoid contact with atmospheric oxygen, and titanium may be added to remove nitrogen.  The process may also be carried out by adding a highly carburized iron chromium alloy to a low carbon iron bath after which follows the increasing of the chromium content of the bath.  Alloying elements, such as nickel, cobalt, titanium, aluminium, and silicon, may be added after reducing the chromic oxide, while oxides of metals such as tungsten, molybdenum, and manganese may be added to the slag to be reduced with the chromium.
Patent GB-657019-A (GB)
Title: Improvements in knives
IPC: B26B9/00
Filed: 1949-02-04
Abstract: 657,019. Knives. ABRAMS, M. Feb. 4, 1949, No. 3078. [Class 30] In a knife blade, to which the substance being cut does not adhere, the cutting edge is formed with a series of teeth a each recess a<SP>1</SP>, between the teeth, being connected by a rearwardly inclined groove a<SP>2</SP>, in one or each face of the blade, with one of a series of longitudinal apertures a<SP>3</SP> passing through the blade and arranged parallel to and at a short distance from the opposite edge of the blade. The grooves a<SP>2</SP> are preferably semi-circular at their outer ends and at their inner ends join the edges of the apertures without any abrupt alteration in contour. Loose particles of the substance being cut, pass up the grooves a2, to the apertures a<SP>3</SP> and the grooves a<SP>4</SP> connecting the apertures.
Patent GB-845270-A (GB)
Title: Improvements in and relating to beading fasteners
Inventor: FERNBERG ERIC BIRGER
IPC: F16B5/12
Filed: 1956-01-31
Abstract: 845,270. Beading fasteners. F. T. PRODUCTS Ltd. Jan. 28, 1957 [Jan. 31, 1956], No. 3120/56. Class 20(4) [Also in Group XXV] In an assembly o f a panel 12, a beading 11 and a fastener, the beading having a longitudinal flange 22 bounded in part by a "linear corner", the fastener comprises a body 13 formed with means which co-operate with a panel and with a means by which the fastener is held to the panel to secure the beading against the panel and with a lug 20 or 21 which is also bounded in part by a "linear corner" and which is pressed against the flange to prevent longitudinal movement of the beading with respect to the panel, wherein contact between the lug and flange occurs at only one point which is located at the intersection of the two "linear corners" of the lug and flange respectively: The "linear corners" of the lug and flange are defined by references to Fig. 4, as the line XY on the lug and that line on the beading which passes through the point C in a direction perpendicular to the plane of the Figure. As shown in Figs. 2 and 4, the fastener is formed with a fixing hole 14, a wing 16 and a limb 15 having lugs 20, 21 which when the beading is applied over the fastener bite into the corners of an edge of the flange 22 of the beading to prevent the latter moving in the direction of its length. In a modification, Figs. 5 and 6 (not shown), slots are formed at each end of the limb 15 adjacent the lugs. In another form, Fig. 7, the fastener is formed with a continuously bowed limb 46, edges 47 and 48 of which provide the lugs which bite into the beading flange. In a modification of this form Fig. 8 (not shown), similar lugs may be provided on the wing 50. In a further form, Fig. 9, the fastener comprises a body 51 one end of which is of arrow-head shape bent upwardly at either side of a notch 57 to constitute lugs 52, 53 for engaging the beading flange. Any of the fasteners described may be provided with only one lug whereby to prevent the beading from moving in one direction only. Specifications 685,630, 734,274, 742,453, 798,095 and 808,066 are referred to.
Patent GB-179249-A (GB)
Title: Improvements in and relating to liquid level gauge glasses
IPC: F22B37/78
Filed: 1921-01-26
Abstract: 179,249. Ceiley, H. G. Jan. 26, 1921. Gauge glasses and the like.- Relates to floats used in liquid-level indicators of the type employing a self-luminous float to facilitate reading of the liquid-level in the dark. The whole or greater part of the surface of the float A is rendered luminous in the dark by enclosing a self-luminous compound between the walls of an outer transparent vessel and an inner hollow buoyant vessel. The float may be protected from damage by a surrounding wire cage or by springs attached to the float or to washers at the ends of the gauge glass, or in the case of a small gauge glass of the type used on steam road wagons, a combined protecting-cage and guide C, and spring B is provided in the gauge glass to protect the float A. When the water-level gets dangerously low, the float sinks out cf sight behind the portion D of the cage.
Patent GB-1291222-A (GB)
Title: Improvements in or relating to electric lamps
Inventor: GILLER WILLIAM LESLIE
IPC: H01J61/98
Filed: 1968-09-10
Abstract: 1291222 Vehicle headlamps W L GILLER 29 Oct 1969 [10 Sept 1968 30 Oct 1968 2 July 1969] 43020/68 51482/68 and 33378/69 Heading F4R [Also in Division H1] A lamp 40 comprising a point source of light and means focusing the light from said source at a point 41 in front of the lamp is combined with a screen 42 extending horizontally across the beam 44 near the point 41 to form a shadow area 43 within the beam. One or more of the lamps together with a screen for the or each lamp is/are mounted on a vehicle to cast the shadow 43 at a level covering the expected range of heights above the road surface of the eyes of drivers of oncoming vehicles. The lamp is preferably a high pressure discharge lamp (Fig. 1, not shown, see Division H1) with an integral reflector in the form of an internal or external coating on an ellipsoidal portion of the envelope.  Alternatively a point source lamp may be mounted at one focus of a separate ellipsoidal reflector. The screen 42 may be a wire of about # inch diameter.
Patent GB-546437-A (GB)
Title: Improvements in tap-changing circuits for electric transformers
IPC: H01F29/04
Filed: 1941-03-12
Abstract: 546,437. Transformers. BRITISH THOMSONHOUSTON CO., Ltd. March 12, 1941, No. 3355. Convention date, March 14, 1940. [Class 38 (ii)] In a transformer tapchanging arrangement of the kind in which a pair of tapping switches 7 are associated with a centre tapped reactor 6, ar energized winding 8 is inductively coupled tc the reactor 6 whereby there is induced in the reactor a voltage equa to half that betweer taps and of such polarity as to oppose the inter. tap voltage in the loca circuit when the tapping switches are on adjacent taps. Thus whether the tapping switches are on the same or adjacent taps the voltage across the reactor is half the inter-tap voltage. The windings 6, 8 may be arranged to embrace the centre leg of a closed core 11, the winding 6 being arranged to embrace also the air-gapped centre leg of a core 9 whereby the necessary reactance characteristic is obtained. Specification 534,368 is referred to.
Patent GB-349591-A (GB)
Title: Improvements in or relating to froth flotation concentration of minerals
IPC: B03D1/06
Filed: 1930-01-31
Abstract: In concentrating ores by the flotation process a compound of arsenic is added to the pulp as a differentiating flotation agent. A compound of arsenic with an alkali metal, preferably also containing sulphur, e.g. sodium thioarsenate, may be used or arsenious oxide or sulphide may be added in conjunction with an alkali or a sulphide hydrosulphide or polysulphide of an alkaline base, e.g. an alkali metal base, an alkaline-earth base or ammonia.  The flotation reagent is preferably added in the grinding mill.  Examples are given of the separation of lead and zinc sulphides in which the lead is first floated by means of an arsenic compound and cresylic acid or cresol and xanthate, the residue being treated with copper sulphate and frothing reagents, e.g. creosote and xanthate, to float the zinc.
Patent GB-135708-A (GB)
Title: An Improved Means of Securing Rubber Heels and Soles with Metal Wearing Pieces to Boots and Shoes.
Inventor: HICKSON GEORGE HENRY
IPC: A43C13/02
Filed: 1919-02-12
Abstract: 135,708. Hickson, G. H. Feb. 12, 1919. Protectors, construction of.-Rubber soles and heels are secured by nails driven through holes in tubular flanged sockets b, Fig. 2, inserted or embeddedin recesses in the tread surfaces.. The sockets may be formed by pressing, forging, or casting, and may be provided with enlarged heads, as shown in Fig. 3, to project beyond the wearing surface. Two or more sockets may be stamped from a single plate f, Fig. 5.
Patent GB-287037-A (GB)
Title: Improvements in or relating to the distillation of solid carbonaceous materials
IPC: C10J3/00
Filed: 1926-12-04
Abstract: 287,037. Nielsen, H., and Laing, B. Dec. 4, 1926. Tar oils, purifying &c.-Lubricating oil is obtained from tar oils by treating them with caustic soda to remove tar acids, refining the residue with sulphuric acid, distilling off 25 per cent of the refined oil and passing the remainder through a filter press at -5‹ C. to extract the paraffin wax. The residue of wax-free oil is distilled to yield the lubricating oil which at normal temperatures has a static coefficient of friction of from 0.1 to 0.185. Specifications 202,738, 212,961, 276,407, [all in Class 55 (i), Coking &c.], and 287,381 are referred to. The first Provisional Specification refers also to Specifications 162,469, 192,515, 207,623, 223,302, and 227,880, [all in Class 55 (i), Coking &c.].
Patent GB-633562-A (GB)
Title: Improvements in or relating to styli for sound reproduction from grooved records
IPC: G11B3/48
Filed: 1947-02-05
Abstract: 633,562. Gramophone needles. ENOCK, Ltd., J., and ENOCK, J. G. Feb. 5, 1947, No. 3489. [Class 40 (ii)] A diamond stylus 10 has a conical end 11 with a polished, substantially hemispherical tip 12. The stylus may be mounted in the moving element 15 of a pick-up, as described in Specification 633,561. Specification 16902/12, [Class 40 (ii)], also is referred to.
Patent GB-660259-A (GB)
Title: Optical objectives
IPC: G02B13/00
Filed: 1948-02-06
Abstract: 660,259. Objectives. WILD SURVEYING INSTRUMENTS SUPPLY CO., Ltd. Feb. 6, 1948 [Aug. 23, 1947], No. 3588/48. Class 97 (i). In an objective which comprises four airseparated components of which the first component faces the object and is a simple converging lens L1, the second component is a meniscus convex towards the object, the third component is convergent and compound and has an axial thickness between 0.1 and 0.6 times the equivalent focal length of the objective and the fourth component is a divergent meniscus compound component convex towards the image, the air-space between the first and second components having the form of a diverging lens with the stronger curved surface r3 thereof on the image side, the air-space between the second and third components containing a diaphragm and having the form of a converging lens with the stronger curved surface r5 thereof on the object side and the air-space between the third and fourth components having the form of a convergent meniscus convex towards the image with the stronger curved surface r10 thereof on the image side, means are provided in the fourth component for causing the divergence of inclined rays to increase so that image distortion is reduced. Such means may comprise a cemented surface r12 which is convex towards the object, the refractive index of lens element L8 being greater than that of lens element L9. Alternatively, an air lens in the form of a plano-convex lens or a convergent meniscus convex towards the object or the image may be provided in the fourth component, the refractive index of the lens on the object side of the air lens being less than the refractive index of the lens on the image side thereof. Optical data are given for six examples.
Patent GB-473458-A (GB)
Title: Improvements relating to processes for refining lubricating oils
IPC: C10G21/00
Filed: 1937-02-06
Abstract: <PICT:0473458/III/1> Crude lubricating-oil is topped to remove hydrocarbons devoid of lubricating properties, and is then fractionated by flowing the topped oil on to a body of solvent of lower specific gravity than the oil, and after standing, drawing off the layer fractions and removing solvent therefrom.  The stratification may take place under atmospheric or higher pressure. For example, a topped mineral oil is fed from a tank b to a column c about half full of benzine.  The oil is distributed uniformly through a tubular cross h.  After standing, insoluble matter is removed through a cock g, and fractions are drawn off through the valves f, and p  solvent is removed therefrom.  The oil fractions obtained may be further treated with sulphuric acid, lime and fuller's earth. Specification 460,906 is referred to.
Patent GB-705053-A (GB)
Title: Improvements in photomechanical printing surfaces and methods of producing the same
IPC: B41C1/02
Filed: 1949-02-10
Abstract: 705,053. Photomechanical printing surfaces. COATES BROS. & CO., Ltd., and BLACK, D. J. Feb. 1, 1950 [Feb. 10, 1949], No. 3647/49. Class 98(2) [Also in Group XVI] A chromium-surfaced copper, brass or zinc plate or cylinder is etched through a developed line or half-tone resist with a first etching liquid which will attack the chromium but not the underlying metal, and then the latter is etched through the resulting chromium stencil with a second etching liquid which will not attack the chromium. The result is, normally, an intaglio printing surface but if the underlying metal is only moderately deeply etched printing may be effected by lithographic means, using the ink refusing and water accepting property of chromium. A chromium plated copper sheet may be sensitized as with bichromated albumen, gum arabic, fish glue or polyvinyl alcohol, exposed under a positive, developed with water, stoved if desired, treated with hydrochloric acid, which may be modified as with glycerin, to etch the chromium, and then etching is continued with or without removal of the resist with ferric nitrate solution which acts on the exposed copper only. Dilute nitric acid or calcium or zinc nitrate may replace ferric nitrate as second etching liquid. Stagnation of the liquid during the second etch produces shallower depressions in smaller dot areas. Doctor lands for larger ink-receiving areas may result from the presence of small transparent dots in dark areas of a half-tone positive, or may be provided by exposure through a half-tone positive and a negative of the original screen in register, or by use of a cross stop in the camera when the screen image is being made. Specification 475,902, [Group XVI], is referred to.
Patent GB-1249229-A (GB)
Title: Improvements in or relating to processes for the manufacture of briquettes
IPC: C10L5/10
Filed: 1969-01-22
Abstract: 1,249,229. Making solid fuel. BERGWERKSVERBAND G.m.b.H. 22 Jan., 1969 [6 Feb., 1968], No. 3660/69. Addition to 1,047,449. Heading C5G. The method of making coal briquettes using a sulphite lye binder according to parent Specification is modified by adding to the mixture, or to the coal or to the lye, a substance or substances which reduce the reactivity of the lye. Examples are phosphates, e.g. sodium and ammonium hydro- and polyphosphates, and chlorides, e.g. of calcium, sodium, zinc, potassium and barium, and silicates.
Patent GB-1142180-A (GB)
Title: Toothbrush holder
IPC: A47K1/09
Filed: 1968-01-24
Abstract: 1,142,180. Toothbrush holder. A. M. LINDQUIST. 24 Jan., 1968, No. 3709/68. Headings A4B and A4V. A toothbrush holder 10 is formed from an initially flat strip 11 of thin, stiff but springy material (e.g. vinyl or other flexible plastics), the strip being bendable transversely at a line 12a between notches 12, to provide a platform portion 13 with an aperture 14, and a back portion 15; the outer face of this back portion has a layer of pressure adhesive 16 with a temporary wax-paper cover 17. For use, the strip, which in the flat state may be carried on the person (e.g. in a wallet or purse) is manually bent through 90 degrees at the line 12a, and the cover 17 is peeled off so that the back portion 15 may be stuck by its adhesive layer to any suitable vertical surface 19, to provide a toothbrush holder supporting the brush by its head when the handle has been passed downwardly through the aperture 14. In an alternative form, the aperture opens via a slot, through the adjacent edge of the strip; by edgewise insertion of the neck of the brush, the slot sides are temporarily deformed so that the brush may be admitted to the aperture.
Patent GB-1300642-A (GB)
Title: Process for production of reinforced articles by an electroforming operation
IPC: C25D1/00
Filed: 1970-01-26
Abstract: 1300642 Electro forming MESSERSCHMITTBOLKOW-BLOHM GmbH 26 Jan 1970 [31 Jan 1969 3712/70 Heading C7B Particles, such as mono crystals, whiskers or fibres, are incorporated into a metal matrix to reinforce the matrix by an electro forming operation in which the particles are maintained in suspension in the electrolyte, e.g. by movement and/or a magnetic or electrical field, until they are incorporated, and a filter is positioned around and spaced from the metal matrix to prevent the particles passing outside the filter. E.g. quartz or aluminium oxide fibres may reinforce a Cu, Ni, or Al matrix.
Patent GB-1285146-A (GB)
Title: Improvements in or relating to yarn-carriers for textile winding machines
Inventor: VANCOLLE VICTOR GEORGE
IPC: B65H54/54
Filed: 1970-01-27
Abstract: 1285146 Yarn carrier MANCHESTER METAL WORKS Ltd 7 Jan 1971 [27 Jan 1970] 3804/70 Heading D1J The yarn carrier shown has a hollow cylindrical core 1 formed from three or more segments 3, internally coned extremities in the core, a pair of hollow conical end members 5, one for each end of the core, and whose external conical faces are respectively complementary to the internally coned extremities of the cylindrical core 1, and co-axial screw means 10, 11, 12 connecting said end members 5 and operable to expand the segmental core against spring loading 4. The core 1 is mounted between opposed rotary circular end cheeks 7 mounted on a U-shaped metal frame 6. The core 1 is surrounded by a dyespring 2 that comprises an open helical coil 2a of stout stainless-steel wire which is maintained under axial compression by lacing successive convolutions thereof together with a wire 2b of lighter gauge.
Patent GB-216071-A (GB)
Title: Improvements in or relating to weather-cocks or the like
IPC: F23L17/10
Filed: 1924-02-14
Abstract: 216,071. Bennion, C. F. Feb. 14, 1924. Chimney tops.-A chimney-cowl, windvane, &c. is provided with a liquid retarder or damping device, interposed between the moving member and the mounting. The vane &c. 3 is mounted in a carrier 5 and is provided with a conical seating 7 engaged by the conical extremity 9 of a cylindrical support 11 situated within a well constituted by a cylindrical casing 15. The carrier 5 has a depending sleeve 17 surrounding the support 11, and a flange 19 surrounding the lip of the casing 15, the parts 11, 15, 17, 19 being co-axial. The well is charged with thick oil, a film of which separates the support 11 and sleeve 17 and provides the desired retarding action. Specification 218,166, [Class 99 (i), Pipes and tubes, Joints &c. for], is referred to.