baber/WOPTO huggingface dataset:
Patent GB-255345-A (GB)
Title: Improvements in the construction of screw propellers for ships
IPC: B63H1/12
Filed: 1926-02-04
Abstract: 255,345. Stevens, C. H. Feb. 4, 1926. Screw propellers. - Screw propeller blades iormed of sheet or pressed metal plates wedded at the edges and at the roots to a suitable boss are welded to the tubular body of a flanged boss, and covering plates forming the outside of the boss are welded to the outer ends of the boss flanges and to the blades to form a hollow boss. The blades are formed from tapered plates a, a' welded at the edges and provided with distance tubes g through which pass rivets g'. The boss comprises a tube c with flanges d and is completed by plates e welded to the flanges and at e<2> to the blades, the roots of the latter passing through and welded at f to the boss c. The complete propeller is tested under internal air pressure for water tightness.
Patent GB-1391446-A (GB)
Title: Anti-dust sheets
IPC: B32B27/18
Filed: 1972-01-25
Abstract: 1391446 Plastics laminates IMPERIAL CHEMICAL INDUSTRIES Ltd 7 July 1972 [2 Aug 1971 25 Jan 1972] 36238/71 and 3438/72 Heading B5N A laminated sheet of thermoplastic material and having a surface resistivity of at least 10<SP>8</SP> ohms comprises at least one pre-formed foil or sheet (A) having 10-50 parts carbon black per 100 parts thermoplastic resin incorporated therein and at least one other pre-formed foil or sheet (B), not having carbon black incorporated therein, spaced less than 2À3 mm. from the nearest surface of foil (A) and constituting an outer anti-dust surface. Specified combinations are AB and BAB, and single foils (A) and (B) may be separated by intermediate foils (B); alternatively a plurality of foils (A) may be separated from one another by foils (B) whilst being conductively connected by bridging members. The foils may be laminated by heat and pressure, e.g. by a hydraulic ram press. The exposed surfaces of foils (B) may be coloured by suitable pigments or additives. The thermoplastic material of the constitutent foils may be the same or different. Specified materials are homopolymers and copolymers of vinyl chloride (which may be chlorinated), ethylene, propylene, 4-methyl-pentene-1, styrene, α-methyl styrene, acrylonitrile, butadiene, methyl methacrylate, vinylidene chloride, vinyl acetate and vinyl butyral (some specific copolymers being mentioned), polyesters, polyamides, polysulphones, polyphenylene oxides, oxymethylenes, polycarbonates, cellulose acetate, cellulose nitrate and cellulose butyrate, and blends thereof. The carbon black may have a nitrogen absorption surface area of about 230 m.<SP>2</SP>/g.
Patent GB-1529111-A (GB)
Title: Devices for packaging in tubular packaging material
IPC: B65B67/12
Filed: 1977-04-21
Abstract: 1529111 Bag dispenser SEYMOUR Mfg CO Ltd 21 April 1977 [29 Jan 1976] 3462/76 Heading A4T [Also in Division B8] A device for use in packaging goods in bags comprises a base 2 having a support for a ball, cheese, spool or reel of tubular packaging material with longitudinally spaced transverse seams, a hollow former 1 having an open top, on inlet 8 through which the packaging material can be drawn so as to extend inside the former and over the mouth of the open top thereof, and a knife 3 for cutting the packaging material. As shown, the support for a spool or reel of the packaging material comprises a spindle 11.
Patent GB-100196-A (GB)
Title: Improvements in Machines for Making and Applying Staples.
Inventor: LEA CHARLES
IPC: B25C5/04
Filed: 1916-03-09
Abstract: 100,196. Lea, C. March 23, 1915, [Convention date]. Fastenings.-Staples are made from a strip of metal by cutting off diagonally narrow strips the ends of which are bent down, forced through the paper, cloth, leather, &c. to be fastened and clinched. The ends of the narrow strips are first cut and bent down, as shown in Fig. 9, by a pair of bending cutters 32, 32<1>, Fig. 3, actuated by cams 38 and the hand-operated lever 44, against the action of a spring 40. The staple is then completely severed, forced through the work C, Fig. 8, and clenched against an anvil 35 by a concave cutter 34 which is actuated by the cam 39 of the arm 44 against the action of the spring 40. The cutters are arranged at an angle to the strip 11 which is fed by a spring tongue 25 on a lever 23, through a hole in which the strip passes, and which is oscillated by a cam 27 of the lever 44 and a spring 31 which also serves to hold the lever 44 in a raised position. The amount of feed is limited by the plate 22 and may be adjusted by a screw stop 29. The coil 12, Fig. 1, of strip material, is carried in a box 13, which has a lid 16 secured by a screw 17 and is mounted on the base 52 to which the frame 49 carrying the cutters &c. is pivoted.
Patent GB-111606-A (GB)
Title: Improvements in and relating to a Contrivance for Securing a Plurality of Rope Terminals to a Main Rope or other Suspender.
IPC: F16H7/18
Filed: 1917-03-09
Abstract: 111,606. Davey & Co., and Brown, F. C. March 9, 1917 Coupling; eyes.-A device for securing a number of rope terminals to a supporting rope, cable, or chain in a readily detachable manner comprises a number of thimbles a formed in one casting and provided with lugs a<1> adapted to be secured by bolts or pins C to lugs b<1> on a tube b, through which can be threaded the supporting rope, cable, or chain.
Patent GB-575547-A (GB)
Title: Process for reclaiming waste polychloroprenes
IPC: C08J11/28
Filed: 1944-02-25
Abstract: Scrap containing polychloroprene is reclaimed by heating it under pressure while in a sub-divided state with preferably 0.02-6 per cent of a di(hydroxyaryl) sulphide, which may be a mono-, di- or poly-sulphide.  Preferred compounds are di(hydroxyphenyl), mono- and di-sulphides, dicresyl mono-, di- and poly-sulphides, di(hydroxynaphthyl) disulphide, di-(butylhydroxyphenyl), mono- and di-sulphides, bis(dimethyl hydroxyphenyl)disulphide, hydroxyphenyl cresyl monosulphide and cresyl dimethyl hydroxyphenyldisulphide. These may be added as a gas or vapour, or as a liquid or solid or in suspension or solution in water or in organic solvents or mixed with oils such as pine or rosin oil.  If the scrap contains fibre, caustic soda, zinc chloride or other cellulose destroying agent may also be added.  The process is preferably carried out at a temperature of 300-420 DEG  F. till the product has a viscosity, measured on the Mooney shearing disc plastometer of 80 to 180 at 180 DEG  F.
Patent GB-855358-A (GB)
Title: Improvements in or relating to moderator and reflector structures for nuclear reactors
Inventor: RODWELL WILLIAM
IPC: G21C5/08
Filed: 1958-02-04
Abstract: 855,358. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Dec. 19, 1958 [Feb. 4, 1958], No. 3577/58. Addition to 782,922. Class 39(4). The moderator and reflector structure of a nuclear reactor are provided with a restraint comprising a series of elastic bands around the structure, each band comprising a series of joined links and each link comprising a nest of coaxial tubes, the restraint being characterised in that the bands are radially keyed to a restraint cylinder. Fig. 2 shows a fragmentary plan view and Fig. 3 is a cross-section along the lines III-III. Adjacent links 19 of a band are pivoted by a pin 20 to a bracket 21 attached to a restraint beam 22 which bears on the reflector structure. Brackets 23 are mounted on rings 24 welded to the restraint cylinder 17 which surrounds the reflector structure and is bolted or welded to the support grid (not shown) supporting the moderator/reflector structure. Each bracket 23 has two parallel sides, each side having a bolt 26 and lock nut 27, and each beam 22 has an integral key part 28 of rectangular cross-section which extends between the bolts 26. This arrangement allows radial movement of the beams 22 to accommodate radial growth of the moderator/reflector structure and differential expansion between this structure and the restraint cylinder but prevents tilting of the moderator/reflector which might otherwise occur due to a sudden and transient horizontal force such as might be caused by an earthquake or in a moving body such as a ship.
Patent GB-607479-A (GB)
Title: Improvements in or relating to machines for grinding the surfaces of tiles and the like
IPC: B24B7/12
Filed: 1946-02-05
Abstract: 607,479. Endless-chain conveyers. GOETZL, H. Feb. 5, 1946, No. 3657. [Class 78 (i)] A machine for grinding the surfaces of tiles or the like articles in plate form is provided with an endless chain or chains which serve to feed the tiles 3 horizontally towards the grinder 4, the tiles being firmly, gripped t the sides as they approach the grinder by gripping members on the chain actuated by a fixed guide so as to ensure that they are not allowed to move sideways due to forces induced by the grinder when in operation. When using two parallel endless chains, as shown in Figs. 1, 3 the grinder is supported by a horizontal table 6a. Rails 6 are provided on the table and rollers 5 are attached to the endless chains and forces them inwardly, causing members 7 to grip the tiles 3 more tightly. When using one endless chain, only, as in Fig. 4, the tiles are supported on linked trays 8 having gripping members 9, 10 whose action is controlled by a rocker 15 mounted on the chain which rides up on a fixed guide. The gripper 9 has a spring 11. Specifications 517,140 and 517,141, [both in Group XXIII], are referred to.
Patent GB-395785-A (GB)
Title: Improvements in or relating to boots, shoes and other footwear and to the method of making same
IPC: A43B13/00
Filed: 1932-02-09
Abstract: 395,785. Boots &c. HOLLINGWORTH, H., The Firs, St. Mary's, Market Harborough, Leicestershire. Feb. 9, 1932, No. 3828. [Class 17 (ii).] Connecting uppers to insoles and soles.-An outer, through, or middle sole of leather, leather substitute, or leather composition has on it a bead, ridge, or like relatively short upstanding projection formed or applied within the edge of the sole so that the area within the bead constitutes a recess for the reception of a laster upper and insole, and so that the edgeof the sole extends beyond the bead and simulates a welt. The bead 2a, Fig. 1, may be wholly or in part integral with the sole 1 and may extend partly or wholly around it. The sole edge may be thicker, thinner, or of the same thickness as the centre of the sole. The bead 2a may be raised on the upper side of the sole by a moulding, pressing, splitting, cutting, or other operation, and is preferably formed by an integral upturned lip 2a reinforced by a covering strip 2b. Alternatively, the edge of the sole may be folded or turned in to form a bead 8, as shown in Fig. 8 or Fig. 9, and edgesetting or edge-finishing can then be omitted.
Patent GB-726331-A (GB)
Title: Improvements in or relating to polybutadiene latex emulsion paints
IPC: C09D109/10
Filed: 1953-02-11
Abstract: An emulsion latex paint comprises 35 to 60 parts of a homopolymer of a C4 to C6 conjugated diolefin, 15 to 25 parts of a pigment, 1 to 3 parts of kaolin, 1 to 3 parts alpha-protein, a small proportion, preferably 0.15 to 0.25 parts methyl cellulose, 0.01 to 0.03 parts of an emulsifiable metallic drier and water in such an amount that the paint contains from 35 to 60 per cent of solids.  Specified polyolefins are those of butadiene, isoprene and 2,3-dimethylbutadiene having preferably after coagulation from the latex a Mooney viscosity of not less than 80, a specified pigment is titanium dioxide, and specified driers are cobalt and manganese naphthenates.  Materials which may also be present are 5 to 15 parts lithopone, 0.1 to 0.2 parts of tetra-sodium pyrophosphate, 0.1 to 0.3 parts ammonium hydroxide, 0.3 to 0.4 parts sodium pentachlorophenate and 0.3 to 0.5 parts pine oil.
Patent GB-139162-A (GB)
Title: Improvements in printing machines having oscillating impression cylinders
IPC: B65H29/56
Filed: 1920-02-09
Abstract: 139,162. Winkler, Fallert, et Cie, Soc. Anon. Feb. 19, 1919, [Convention date]. Cylinder machines.-An oscillating-cylinder machine, of the kind in which the sheets are held to the impression cylinder during the printing and delivery operations by tapes fastened at one end to the cylinder and at the other end to a spring drum, is constructed so that the tapes pass over a roller e which is movable to and from the impression cylinder. The tapes pass to the roller e from a spring drum c and are secured to the compression cylinder i by a fastening-device b. The roller e is carried by levers d on an oscillating shaft f, and, during the feeding operation, the levers d are in the position shown in Fig. 1 and assist the feed of the sheets. Preferably, the shaft f also carries a wiping-brush i or a felt roller which smooths out the paper and cleans it, this wiping-device being arranged to act on the paper just before it reaches the tapes a. On the return motion of the cylinder, the arms d are moved towards the cylinder i, so as to bring the roller e close to the cylinder, and at the same time the wiper is moved away from the cylinder so as to prevent smudging of the impression. The tapes a thus prevent the back edges of the sheets from leaving the impression cylinder prematurely.
Patent GB-1076692-A (GB)
Title: Improvements relating to correlating devices
Inventor: FRANKLIN DONALD PETER
IPC: G06F17/15
Filed: 1963-01-31
Abstract: 1,076,692. Correlation calculator. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 31, 1964 [Jan. 31, 1963], No. 3939/63. Heading G4A. Apparatus for deriving correlation coefficients of two functions x, y presented at inputs 1, 2 (see Fig. 1) comprises a recirculation delay means providing two separate delay paths (in the present embodiment a magnetic tape band 18 with associated read/write heads etc.) into which successive x and y values are entered, the recirculation time for the x and y values being different, so that in successive recirculation cycles the products x(t).y(t), x(t)y(t + t) . . . etc. can be derived from read-out values for deriving the correlation coefficients. In the embodiment shown each x and y value is obtained from an analogue-digital converter (7 for the x value: unit 4 for y signals is similar to unit 3) as a three bit (including one sign bit) number set up in register 8 and dynamicized at 9 by three-phase clock generator 53. It passes via gates 10-12 to a switching flip-flop 14 which generates signals for non-return-to-zero recording at 16. When the tape is filled between write and read heads a marker signal derived from circuits in Fig. 3 (not shown) closes gate 10 and opens gate 13 for recirculation of the entered data. Clock signals picked up at 27 control a 3-phase pulse generator 52 which gates the 3 bits of each x (and y) value to registers 39-41 for re-entry, and also for application over lines B-D to Fig. 2 (not shown) which illustrates the correlation coefficient calculation. The sign bits (B and E) of X and Y are loaded into flipflops (75, 76) so that gates (83-86 and 89, 90) will produce a positive or negative product sign for application to a further gate (81 or 82: 87, 88 are inverters). The bits C, D of the X value (C the most significant) are loaded into flip-flops (72, 71) and the number counted down by pulses from an oscillator (68). Since the latter flip-flops constitute part of a cascade binary counter (69-72) 2x and x pulses will have been passed to other gates (78, 79 respectively) before a group gate (77) detects complete count-down to stop the oscillator (68). Since the other gates (78, 79) are controlled by the most and least significant bits of y (F, G) the number of pulses leaving a further gate (80) = 1x.y1, and they are directed to " pumps " (91, 92) according as the product is positive or negative. The pumps (91, 92) produce a positive and a negative pulse respectively for each input pulse, so that integrating circuits (94 or 95) accumulate in analogue form the value of #x.y. The y recirculation path includes a delay equal to 3 clock times, so that after one integrating circuit (94, say) has accumulated one coefficient, relays (93 and 97) operate to read out this and enable the other integrator (95) to accumulate the coefficient using the next value of #t, the first integrator (94) being subsequently cleared.
Patent GB-1078381-A (GB)
Title: Improvements in solid fuel furnace grates
Inventor: TATEM JOHN ARTHUR
IPC: F23H9/02
Filed: 1963-01-31
Abstract: 1,078,381. Furnace grate. G. W. B. FURNACES Ltd. April 29, 1964 [Jan. 31, 1963], No. 4010/63. Heading F4B. A solid fuel burning furnace has a grate comprising pairs of tubular fire bars 4 provided with protrusions 7, for crushing clinker, and arranged such that when adjacent bars are counterrotated, they do not interfere with one another. The bars are provided with holes (8), Fig. 3 (not shown), for the injection of combustion air into the fuel, and are supported by bearings (16) to avoid distortion due to the fuel bed load. The forward ends of the bars carry drive tubes 11 engaging gears 12, and the rear ends carry tubular extensions 15 engaging bosses 18. The furnace may be fitted with wear plates adjacent the outermost fire bars and incorporating protrusions.
Patent GB-1425779-A (GB)
Title: Recovery of titanium dioxide from ores
IPC: C01G23/053
Filed: 1974-01-29
Abstract: 1425779 Recovery of TiO 2  from ilmenite ONTARIO RESEARCH FOUNDATION 29 Jan 1974 [2 Feb 1973] 04138/74 Heading C1N Pigment grade TiO 2  is recovered from ilmenite by (i) contacting the ore or a concentrate thereof in particulate form with concentrated hydrochloric acid at 15‹ to 30‹ C. to leach from the ore or concentrate at least 80%, preferably at least 95%, of the titanium and iron values, the hydrochloric acid being present in such a quantity as to provide at least 2 moles of HCl per mole of ferrous iron, at least 3 moles of HCl per mole of ferric iron and at least 4 moles of HCl per mole of titanium in the ore concentrate, (ii) separating the resulting leach liquor from residual solid material, (iii) converting any ferric iron present in the leach liquor to ferrous iron to provide an aqueous solution of titanium chlorides and ferrous chloride, (iv) hydrolysing the titanium chlorides and depositing titanium oxyhydrate while inhibiting the deposition of other metal hydroxides, (v) separating the deposited titanium oxyhydrate from the mother liquor, (vi) washing and drying the separated material and (vii) converting the dried oxyhydrate to titanium dioxide. The ore or concentrate may be treated prior to leaching, e.g. by an oxidation at 600‹ to 1000‹ C. and preferably has a particle size distribution of 90 to 95%-100 mesh and less than 50%-325 mesh. The leaching is preferably performed countercurrently at 20‹ to 25‹ C. The ferric iron values are converted to ferrous iron by the use of SO 2  or by the addition of powdered metallic iron to the solution at between 50‹ and 95‹ C. When powdered iron is used a quantity sufficient to convert all the ferric iron to ferrous iron and up to 1% of the tetravalent titanium to trivalent titanium is used. The titanium chlorides are preferably hydrolysed with 1 to 3 volumes of water per volume of leach liquor and 1 to 2% of titanium oxyhydrate is preferably added as a seed. The dried titanium oxyhydrate is suitably converted to anatase or rutile titania by heating at 700‹ to 1000‹ C. The iron values may be recovered and the hydrogen chloride values recycled to the leaching step.
Patent GB-370560-A (GB)
Title: Improved tongue pack and method and apparatus for producing it
IPC: B65B1/24
Filed: 1931-02-10
Abstract: 370,560. Canning tongues. DEHN, F. B., 103, Kingsway, London.-(E. K. Pond Co. ; 3327, West 47th Place, Chicago, U.S.A.) Feb. 10, 1931, No. 4156. [Class 49.1 In canning beef and other tongues, jelly, whole tongues and filler pieces are introduced into the can until the charge protrudes from the open end, mechanical pressure is then applied gradually at this end to condense the contents so that the top surface is at about the top of the can, relief means being provided for escape of fluid during the compression, the can is then headed, evacuated and finally the vent therein is sealed by soldering. The compression may be effected in a press 20, Fig. 3, having a frame 21 with a can-positioning ring 22 and a cross-bar receiving a threaded stem 23 which coacts with the plunger member 24. The member 24 has a thin depending portion 25, Figs. 4 and 5, which fits within the circumference of the can 10, and an annular recess 26 which receives the can flange 15. For fluid relief, one or more orifices 28 may be provided in the member 24 or slight leak-space between the member 24 and the can may be depended on. A battery of presses is employed, for simultaneously treating a number of cans, the pressure being increased gradually by intermittent manual operation of the presses. The materials are added warm to the cans and cool during the pressure treatment. After compression, the can passes to the heading machine where a small amount of liquid jelly material may be placed on the top surface before applying the head by lock-seaming.
Patent GB-1217943-A (GB)
Title: Blow moulding apparatus and method
IPC: B29C49/28
Filed: 1968-01-26
Abstract: 1,217,943. Blow-moulding; rotating extruder. CONDUCO A.G. 26 Jan., 1968 [28 Jan., 1967], No. 4180/68. Heading B5A. Extrusion-blow apparatus comprises at least one extruder, the nozzles of which are driven along an endless path, preferably circular, and a plurality of moulds adjacent the path. As shown in Figs. 1, 2, extruders 7, 7<SP>1</SP> having nozzles 32 are mounted on a turntable 1 rotatable in direction E, moulds 10 being supported on a platform 9 in a central orifice in the turntable. An electric motor 2 drives the turntable 1 by means of gear 5 meshing with teeth 8 on the internal edge of the turntable. By means of gears 12-15, it also drives a shaft 11 having a co-rotating sleeve 17 driven by longitudinal keys 16 and carrying platforms 18, 118 which support cam rings 19, 119 to operate mould unit 10 and mandrel unit 25 respectively. Mould halves are mounted on platens 24, 24a opened and closed by rack and pinion arrangement 33, 34, 33a via plates 22 and follower arm 21 displaced by cam 19. The mould units 10 and platform 9 may be vertically reciprocable by means of piston 30 of cylinder 31 to receive extrudate and retract out of the way of the continuous extrusion for blowing. Mandrel unit 25 having blowing nozzle 26 mounted on the assembly of mould unit 10, is horizontally reciprocable by means of rod 28 sliding in sleeve 27 by means of cam 119 and follower 121 and is vertically reciprocable by hydraulic cylinder 25 for blowing the extruded parison and withdrawal from the path of the extruders. In an alternative embodiment (Figs. 4, 5, not shown), mould units (61) are spaced around the rotating extruders (58) and the extruders may be pivotable about input shafts (57, Fig. 4) or rod (66, Fig. 5) and may be longitudinally extensible for use with different moulds.
Patent GB-633136-A (GB)
Title: Improvements relating to the wheels of tractors and like agricultural vehicles
IPC: B60B15/02
Filed: 1947-02-13
Abstract: 633,136. Wheel rims. HARWOOD, R. T. Feb. 13, 1947, No. 4200. [Class 144 (i)] A rim for tractor wheels comprises two sideplates a, connected by intermediate plates c, set edge-on to the periphery of the wheel and inclined radially forwards from their outer edge d to their inner edge e with respect to the forward rotation of the wheel, the outer periphery of the plates a being formed with grooves f to provide a better grip on a road surface or when crossing railway rails.