baber/WOPTO huggingface dataset:
Patent GB-1379524-A (GB)
Title: Pulping process
IPC: D21C3/00
Filed: 1973-01-26
Abstract: 1379524 Treating wood pulp STERLING DRUG Inc 26 Jan 1973 [7 Feb 1972] 4087/73 Heading D2W In a process for delignifying cellulosic raw material such as wood chips by treatment with an oxygen-containing gas in the presence of an alkaline buffer solution at high pressure, the alkaline buffer solution is applied to the cellulosic raw materials such that contact therewith is only partial or intermittent. For example the alkaline buffer is allowed to trickle over the cellulosc raw material or the latter is intermittently wetted with and drained off the buffer in a shaking or rotating autoclave which is only partly filled with the buffer. The buffer may be an aqueous solution of NaOH, Na 2 Co 3 , or NaHCo 3 . A cupric salt may be dissolved in the buffer to provide improved yields of pulp.
Patent GB-1321031-A (GB)
Title: Mould release agent
IPC: B22C3/00
Filed: 1972-01-28
Abstract: 1321031 Mould release agents BRITISH PETROLEUM CO Ltd 28 Jan 1972 [15 Feb 1971] 4099/72 Heading C5F A mould release agent comprises (a) 30-50 wt. per cent of a lubricating oil having a viscosity of at least 230 cSt at 50‹ C.; (b) 45-65 wt. per cent of a petroleum fraction boiling at 170-350‹ C.; (c) 1-5 wt. per cent of an Al salt of a C 6 _ 22  monocarboxylic acid; (d) 1-5 wt. per cent of an ester of a benzene dicarboxylic acid and a C; + aliphatic alcohol. The composition may also contain (e) 1-5 wt. per cent of an Mg salt of a C 8 _ 22  fatty acid. (a) May be cylinder oil or brightstock, (b) may be light gas oil, kerosene or white spirit, (c) may be Al dioctoate, (d) may be di-isodecyl o-phthalate, and (e) may be Mg stearate.
Patent GB-372796-A (GB)
Title: Improvements relating to ratchet and pawl mechanisms
IPC: F16H31/00
Filed: 1931-02-10
Abstract: 372,796. Ratchet and pawl devices; counting-apparatus. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and BAKER, F., 17, Woodland Terrace, Charlton, both in London. Feb. 10, 1931, No. 4142. [Class 80 (iii).] A pawl 8 in the form of an L-shaped spring is carried by an extension of an armature 6 of an electromagnet 2, the extension being bent twice at right-angles as shown. The lower arm 81 of the pawl, Fig. 4, is formed with lugs 8a, 8b which pass through holes in the extension piece 7 and are turned in opposite directions. Alternatively the pawl may have the shape shown in Fig. 6, and be riveted to the piece 7, passing up through a hole 7<1>. A detent 13 prevents backward movement of the wheel 9 due to friction with the pawl. The device may be used in step-by-step counting-apparatus.
Patent GB-957071-A (GB)
Title: Advancing roof-supporting device
Inventor: BARRETT WESLEY HORACE
IPC: E21D23/00
Filed: 1961-02-03
Abstract: 957,071. Self-advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. Jan. 18, 1962 [Feb. 3, 1961; Feb. 20, 1961], Nos. 4204/61 and 6167/61. Heading E1E. A self-advancing mine roof support assembly comprises two frames 1, 2 pivotally connected to a lever 9 which in turn is pivoted to a doubleacting hydraulic jack 12 for advancing the conveyer 15. The frames are additionally pivotally connected to a prop 17 by arms 18, 19 and may be connected together by members which positively locate each frame at the end of its advance. Specification 957,072 is referred to.
Patent GB-231292-A (GB)
Title: Improved manufacture of ductile metals from refractory metals
IPC: B22F3/14
Filed: 1924-02-19
Abstract: 231,292. Fischer, C. H. Feb. 19, 1924. Extrusion Machines.-Apparatus for obtaining continuous lengths of refractory metals such as tungsten, molbydenum, or their alloys in ductile form from the metal in powder form comprises a strong metal body a having a cylindrical portion b and conical portions c, n, and fitted with a piston d adjustable by a screw e to apply pressure to the powder which is charged through an opening l. Heating is effected by electrodes p, p', t, t<1>, and a gas such as hydrogen is admitted throughout the operation.
Patent GB-647012-A (GB)
Title: An improved bossing device or tool for use in the manufacture of articles moulded from fibrous cement and the like
IPC: B28B17/00
Filed: 1948-02-13
Abstract: 647,012. Moulding pipe bends and other hollow articles from fibrous cement. CELLACTITE & BRITISH URALITE, Ltd., and KINGSBURY, H. W. Feb. 13, 1948, No. 4282. [Class 87 (ii)] [Also in Group XXIII] A bossing tool for insertion into the open end of a divided mould after the mould parts have been lined with moulding material, such as fibrous cement, and assembled, comprises a head mounted on a handle and adapted to be rapidly expanded and contracted repeatedly, to boss together the meeting edges of the moulded sections in the mould. The head, which is ovoid in form and in two parts 1, 2, has guide-pins 4 and connecting springs 3, and may be fitted with removable and interchangeable pads 18, 19, having surfaces to suit articles of different shapes. The part 1 of the head contains a supply passage 8 and an exhaust passage 9 for compressed air which actuates a piston 6 fitted to reciprocate in a liner 5. The piston is seated on the part 2 and has radial passages 11 which connect the circumferential groove 10 with an axial passage 12. The passage 12 leads at one end into a recess 7, and at the other end into a radial passage 13. Compressed air is supplied to the passage 8 through a tubular handle 14 fitted with a control valve operable by a press-button 16, Fig. 1 (not shown). When the button is depressed, air flows around the passage 10 through passages 11 and 12 into the space 7, forcing the piston 6 and part 2 of the head downwardly against the springs 3. As the piston moves downardly the passage 10 is carried past the inlet 8, thus cutting off the air supply to the head, and at the same time uncovering the exhaust passages 9, 13. When the space 7 is exhausted the springs 3 draw the parts 1, 2 sharply together again so that the vibration may continue. The handle 14 may be made flexible.
Patent GB-557104-A (GB)
Title: A new or improved portable battery energised electric lamp
IPC: F21L4/00
Filed: 1942-04-02
Abstract: 557,104. Battery lamps. EASTELL, E. L. April 2, 1942, No. 4427. Addition to 540,862. [Class 39 (ii)] The two containers and battery and lamp respectively, in a lamp equipment for saving life at sea as in the parent Specification, are united and a single flexible lead 11 comprising the circuit make and break device 7, 10 is employed. The watertight container 1 for the battery has a conducting socket 7 mounted by waterproofing insulating material in a screw cap closing the base of the container and a conducting support for the lamp container 14 is secured at its other end. A single cell battery has its centre contact 5 maintained by a spring 13 in contact with the inner end of the socket member. A spring clip with rolled over clamping jaws 24, 25 is secured to the container 1 to enable the device to be readily attached to an inflatable life-saving jacket or belt. A lanyard 27 may be attached to this clip. The lamp casing may have a transparent domed cover 15 or an opaque hood closed by a transparency with a reflector behind the lamp to provide a beam. The axis of the lamp container and the centre line of the clip may lie in planes radial to the axis of the container 1 making an angle of 30 to 40 degrees to each other.
Patent GB-889466-A (GB)
Title: Hairdressers' setting stand
IPC: A45D20/52
Filed: 1960-02-09
Abstract: 889,466. Drying g hair. SZWAJNOCH, W. June 1, 1960 [Feb. 9, 1960], No. 4497/60. Class 81 (2). [Also in Group XIV] A hairdresser's stand (see Group XIV) has a hollow column 52 with a base cover 55, sterilizing unit 58 and bowls 63, 64 slidably supported thereon and the base unit houses an air compressor 65 which delivers air via heater 66 to column 52 and thence to a nozzle or to a brush 74 to escape between the bristles 74d. An air conditioning unit comprising a liquid container 68, a blower 69 and atomizer 70 can supply any desired vaporizing solution to the air available to compressor 65.
Patent GB-854091-A (GB)
Title: Improvements in or relating to apparatus for use in water purification treatment or like processes
IPC: C02F1/52
Filed: 1958-02-11
Abstract: 854,091. Purifying liquids ; gravity-separation apparatus. BRISTOW, A. W. Feb. 11, 1959 [Feb. 11, 1958], No. 4500/58. Addition to 752,077. Class 46. The chief modifications to the apparatus of the parent Specification are concerned with prescribing limits to the relative dimensions and angles of the parts of the " device " and its overall dimensions in relation to the " cell," providing for sludge withdrawal at a level below the top of the cells, and omitting the vanes within the device. In Fig. 2 the convergent portion of the device is longer than the divergent portion, and the device extends above the top of the cell. Two alternative positions for the baffle plate 28 are shown. In Figs. 3 and 4 (not shown), perforate slugdecollecting pipes are disposed between rows of cells, the cells in each row being continuous. In Figs. 5 and 6 octagonal cells 62 are arranged on circular slabs 61a, the inter-cell spaces communicating with sludge-pipes 65. In Figs. 7 and 8 (not shown) the cells are continuous and sludge pipes extend under every third row of cells. The central cell of every square array of nine cells has no device, and is in communication at the bottom with a perforate portion of the sludge pipe. In Fig. 9 (not shown), the cells are thin-walled structures resting on the bottom of the tank in spaced rows adjacent rows being spaced by two horizontal members having a sludge pipe between them. In Fig. 10, thin-walled cells 101 stand in spaced rows on top of horizontal members 109 with sludge pipes 105 between them. Alternatively the cells may be rested between the members 109, the cells in any one row being spaced for sludge collection. In Fig. 11 (not shown), a portable tank incorporates a single cell and " device," whilst Fig. 13 shows such a tank with two cells.
Patent GB-933587-A (GB)
Title: Cylinder ampoule
IPC: A61M5/31
Filed: 1960-02-09
Abstract: 933,587. Hypodermic syringes. CHEMIE GRUNENTHAL G.m.b.H. Feb. 9, 1960 [Feb. 12, 1959], No. 4558/60. Class 81 (2). In an ampoule syringe having a cannula enclosed in a protective cap 7 which can be used as a piston-rod, a thickened portion 4 of the cannula is secured between a cannula holder 5 and an insert member 3, the cannula holder being secured to the syringe by a flanged cap 6 and serving as a seat for the protective cap. The insert member 3 is resilient and receives the rear part of the cannula. A cylindrical or conical portion of the holder supports the cannula and forms a seat for the protective cap which has a screwthread 11 for engagement when it is to be used as a piston-rod with a closure piston of the ampoule. For sterilization, the protective cap is incompletely pushed on the holder so that channels 12 in the holder permit sterilizing fluid to reach the cannula. For sealing, the cannula is pushed into a rubber plug 8 in the protective cap and may receive a core 9 which extends from the plug.
Patent GB-575649-A (GB)
Title: Vinyl halide polymer and copolymer stabilization
IPC: C08K5/098
Filed: 1944-03-13
Abstract: Vinyl halide resins are stabilized by adding antimony potassium tartrate.  The preferred amount of stabilizer is 0.2 to 10 per cent by weight.  The resin may be plasticised.  Specified resins are polyvinyl chloride, bromide or iodide, copolymers of a vinyl halide with a vinylidene halide, or a maleate, or a chloromaleate, or a fumarate, or a chlorofumarate, or an ester of another alpha, beta, unsaturated polycarboxylic acid, or vinyl acetate, or other vinyl ester, or styrene, or an acrylate, or a substituted acrylate. Typical examples are dimethyl, diethyl, dipropyl, dibutyl, diisobutyl, dihexyl, ditetrahydrofurfuryl and dibenzyl fumarates.  In examples: (1) a vinyl chloride-diethyl fumarate copolymer plasticised with dibutyl sebacate, (2) a vinyl chloridevinylidene chloride copolymer and (3) a vinyl chloride-diethyl maleate copolymer are stabilized with antimony potassium tartrate.
Patent GB-1359420-A (GB)
Title: Arrangement of a sampling shears in a trimming and parting group  for heavy plates
IPC: B23D31/00
Filed: 1972-02-01
Abstract: 1359420 Shearing MOELLER & NEUMANN GmbH 1 Feb 1972 [2 Feb 1971]  4669/72 Heading B3W A sample strip cut from a heavy plate by a shear 3 is deposited on a reversible conveyer 5 which carries it to a reversible conveyer 8 rotatable about a vertical axis 9 between the strip-receiving broken line position and a full line position, such as the one shown, in which it can feed the strip stepwise into a sampling shear 11. Lengths are sheared from the strip until rather more than half of it is left, the conveyer 8 is rotated through 180 degrees and lengths are cut from the other end to leave an intermediate sample piece. Scrap from the original plate is carried by the conveyer 5 to a scrap shear 6.
Patent GB-311747-A (GB)
Title: Automatic machine for breaking flax or other textile plants
IPC: D01B1/30
Filed: 1928-02-15
Abstract: 311,747. Leterme, C. D. M. J., and Leterme, M. V. J. C. Feb. 15, 1928. Scutching-apparatus.-In a machine of the kind described in Specification 256,621 the flax &c. fed between the drum 1 and belt 3 is deflected by a plate d of the cross-section shown to the auxiliary drums 5, 9, 7 and the breaking bars 10, 10'. The plate d and bars 10, 10' are adjustable horizontally and vertically.
Patent GB-1254966-A (GB)
Title: Expandable spreader and grappling device for cargo containers and trailers
Inventor: FATHAUER JACK E
IPC: B66C1/00
Filed: 1969-09-23
Abstract: 1,254,966. Spreaders for lifting containers. MIDLAND-ROSS CORP. 23 Sept., 1969 [7 Oct., 1968], No. 4878/71. Divided out of 1,254,965. Heading B8H.  The description is the same as that of the Specification 1,254,965 but the claims are different.
Patent GB-1501361-A (GB)
Title: Timepieces
IPC: G04B19/04
Filed: 1976-02-09
Abstract: 1501361 Clocks SANSHO CO Ltd 9 Feb 1976 [10 Feb 1975] 4884/76 Heading G3T A timepiece 10 comprises a casing 11 with windows 12, 13 in its front plate 11a for viewing hour and minute indicating cylinders 16, 17 which are driven at appropriate speeds by a motor 31, the periphery of each cylinder being divided into two contrastingly coloured areas by an inclined line 24, 25 so that time is indicated by the interfaces, as at 14a, 15c in Fig. 1, in co-operation with digits adjacent the respective windows. The motor may be of electric or spring type driving the cylinders continuously as shown in Fig. 2; the hours cylinder and window may be extended Fig. 4 (not shown) to aid reading between 12 and 1 o'clock. An alternative system is also described in which the hours cylinder is advanced intermittently and the minutes cylinder is rapidly returned to its zero position at the end of each hour Fig. 5 (not shown). A further seconds cylinder may be provided, and one or more lamps in or between the windows.
Patent GB-1101463-A (GB)
Title: Process for the production of shaped elements formed from polyhydroxy methylenes
IPC: C08F8/00
Filed: 1966-02-03
Abstract: A process for the production of a shaped element formed from a polyhydroxymethylene or a macromolecular compound consisting predominantly of hydroxymethylene units comprises reacting an amine having at least one hydrogen atom bonded to nitrogen with a polyvinylene carbonate or a copolymer containing predominantly such units so as to produce a water-soluble polyhydroxyurethane, processing an aqueous solution thereof to obtain an element of desired shape, and saponifying the polyhydroxyurethane with a basic substance. In examples polyvinylene carbonate and a copolymer with vinyl acetate are used, the amine being mono- or di-ethanol-amine or morpholine.
Patent GB-1372323-A (GB)
Title: Sealed alkaline electrochemical elements
IPC: H01M50/193
Filed: 1972-02-02
Abstract: 1372323 Sealing of alkaline cells; electrolytic capacitors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 Feb 1972 [5 Feb 1971] 4892/72 Headings H1B and H1M To prevent leakage of alkaline electrolyte at the interface between a metal casing component having a negative potential and a synthetic resin sealing member, the seating member consists of a vulcanized chlorosulphonated polyethylene rubber. This rubber has a positive charge due to the presence of peripheral positive groups in the polymer. The rubber is preferably vulcanized with magnesium oxide. The invention is particularly directed to the sealed metal casing of an Ni-Cd cell but is also applicable to other alkaline electrolyte secondary cells, to alkaline primary cells and to electrolytic capacitors. A Cd-Ni cell shown in the drawing comprises a cup 2 and cover 1 of metal, a sealing ring 4 of the above-mentioned rubber, nickel wire gauge 5, positive electrode 6, separator 7 impregnated with KOH, negative electrode 8 and a contact spring 9. The casing is closed by flanging rim 3 of the cup 2 over the rim of cover 1.
Patent GB-850152-A (GB)
Title: Improvements in or relating to seats, especially for motor vehicles
IPC: B60N2/70
Filed: 1959-02-13
Abstract: 850,152. Seats: resilientmountings. SCHNEIDER, H. J. Feb. 13, 1959 [Feb. 20, 1958], No. 5037/59. Classes 52(1) and 52(2) In a vehicle seat 2 the seating surface 3 includes a trough shaped member 5 for the pelvis, a thigh support 6 pivoted thereto and a surface 8 inclined against the backrest 4 which has individual cushions 16 of different depth, each cushion 16 consisting of foam rubber with a cover and supported in a frame 17 by means of pre-stressed coil springs 20, 20<SP>1</SP> anchored to the frame on both sides in securing apertures 22. The cushions can be arranged to give a desired contour by anchoring the springs in appropriate apertures. The thigh support 6 is adjustable and lockable in the desired position by means of a spring-loaded hinge 9 and clamping nut member. In a modification, Fig. 3, the seat has a bowl-like member 24 for supporting the pelvis and the member 24 is supported by coil springs 26 having a pitch which becomes increasingly smaller toward the seat frame 27.
Patent GB-1067706-A (GB)
Title: Improvements in or relating to the production of sponge iron
Inventor: HEITMANN GUENTER
IPC: C21B13/08
Filed: 1966-02-04
Abstract: Sponge iron is produced by direct reduction of iron ore mixed with a carbonaceous reducing agent with or without a sulphur-combining agent such as lime or dolomite in a rotary kiln into which a suspension of coal e.g. bituminous coal lumps in a free oxygen-containing carrier gas e.g. air is injected through the core duct of a pair of coaxial tubes at the discharge end, while a similar carrier gas (air) is injected through the annulus e.g. to maintain the inner tube cooled below 400 DEG  C.  A third coaxial tube may be provided for heating oil during starting-up. The coal-air suspension preferably contains 1 to 3 cubic metres of air per Kg of coal.
Patent GB-1072974-A (GB)
Title: Improvements in or relating to electric circuit arrangements including inductive elements
IPC: H04J3/20
Filed: 1966-02-07
Abstract: 1,072,974. Transformers. SIEMENS A.G. Feb. 7, 1966 [Feb. 8, 1965], No.5204/66. Heading HIT. [Also in Division H3] An arrangement for reducing the. losses in inductive members of filter circuits, by use of amplifier with positive feedback (see Division H3) utilizes a transformer comprising E- section cup-shaped or rectangular cores K1, K2, a predetermined leakage inductance being provided by means of a gap S separating the central limbs. The main windings I, II are wound in the same direction and superimposed on auxiliary windings ZI, ZII by means of which the positive feedback is applied, and which are wound in mutually opposing directions. A magnetic shunt W is provided between the pairs of windings, so that the influence on winding I of the current in auxiliary winding ZII is much less than that of the current in auxiliary winding ZI, as so also is the influence of winding ZI on winding II less than that of winding ZII.
Patent GB-1040702-A (GB)
Title: Slide tray for optical projectors
IPC: G03B23/06
Filed: 1963-02-22
Abstract: 1,040,702. Slide projector apparatus. EASTMAN KODAK CO. Feb. 22, 1963 [Feb. 23, 1962], No. 5210/66. Divided out of 1,040,701. Heading G2J. Rotatable slide tray as disclosed in the parent Specification in which the slides are mounted in compartments radial to the axis of rotation.
Patent GB-1451065-A (GB)
Title: Wave-protection block
IPC: E02B3/14
Filed: 1973-02-02
Abstract: 1451065 Moulding cavitied concrete blocks W H WEBB and P J WEBB 24 Jan 1974 [2 Feb 1973] 5230/73 Heading B5A [Also in Division E1] A concrete wave protection block 1 of generally prismatic or cylindrical form, comprises a plurality of lateral recesses 8 extending from one end face 3 along only part of the length of the block; and opening radially into a central recess 4 extending from the other end face 2 of the block. The legs 7 of the block defined by the recesses, are interconnected by an end slab 5 having a central aperture 6 therethrough. The block is of rectangular, hexagonal or circular cross-section, and can be slightly tapered. The block is made in a mould 10 (Fig. 2) having axially extending ribs 12 for defining the lateral recesses 8, and supports a removable pallet 13. An octagonal core 16 (Fig. 5) fits closely against the ribs 12 to define the central recess 4, and includes an end projection that spaces the core from the pallet 13 to mould the slab central aperture 6 (Fig. 1). Stiff concrete is vibrated in the mould cavity and tamped by an annular tamper surrounding the core. The mould and core are stripped before the concrete has set hard, to leave the block on the pallet 13, or the block is cast in an inverted position and left to dry on the core above.
Patent GB-433554-A (GB)
Title: Improvements in or relating to electromagnetic devices such as bells or relays
IPC: G10K1/064
Filed: 1934-02-16
Abstract: 433,554. Electromagnetic switches. STANDARD TELEPHONES & CABLES, Ltd., GRACE, B. B., and TERRY, R. ST. G., 63, Aldwych, London. Feb. 16, 1934, No. 5256. [Class 38 (v)] [See also Group XXXVIII] An electromagneticallyoperated device such as a bell or relay has a core on which is mounted primary and secondary windings, the former of which is arranged to be continuously energized from an A.C. source, and an armature which is moved relatively to the core owing to the change of flux produced by closure of the secondary winding circuit which is connected directly to con trol contacts. As shown in Fig. 3, the core carries a primary winding 3 continuously connected across A.C. mains on its lower limb 4 and a normally opencircuited secondary winding 6 on an upper cross limb 7. On closure of the circuit of the latter at a push-button 21 or other switch or relay, the flux which now passes into the upper portions of the core limbs causes the vibration of a pivoted armature 8 which is tuned to the supply frequency or a sub-multiple thereof by means of blade springs 15, 16. The armature may carry a hammer 13 striking a gong 1, Fig. 2, which acts as a cover for the device. Alternatively the polepiece 2 may carry a shading ring so that the armature is continuously held up while the secondary circuit remains closed. By providing a spring contact pile-up the device can then be made to operate as a relay.
Patent GB-1095643-A (GB)
Title: New or improved stop sign for traffic control
Inventor: ROWLAND JOHN HAROLD
IPC: G08G1/095
Filed: 1965-02-06
Abstract: 1,095,643. Road traffic signals. L. CHORLTON & CO. Ltd. April 27, 1966 [Feb. 6, 1965], No. 5262/65. Heading E1G. [Also in Division F4] A portable warning sign for controlling traffic e.g. at crossings used by schoolchildren, consists of a disc 10 mounted on a shaft 18 and bearing appropriate indicia, the disc being illuminated by a lamp 16 in a red or amber cover and connected to batteries 24 inside the shaft 18, controlled by a switch 34. The shaft may also contain a flasher unit 36 in the circuit of the lamp, the unit incorporating a mercury switch which maintains the circuit open unless the shaft is held within about 30‹ of the vertical.