baber/WOPTO huggingface dataset:
Patent GB-473100-A (GB)
Title: Process for the treatment of tars and mineral oils containing paraffin wax
IPC: C10G21/02
Filed: 1936-08-04
Abstract: Mineral oils and tars containing paraffin wax are first extracted with a selective solvent for non-paraffinic constituents at an elevated temperature, e.g. 50 to 100 DEG  C., at which the initial materials are liquid, and cooling the <PICT:0473100/III/1> resulting extract in admixture with a diluent such as benzine to remove paraffinic components therefrom, separating the layers and removing solvent therefrom.  The second raffinate may be returned to the first stage.  Selective solvents specified are, phenol, sulphur dioxide, furfurol, and nitro benzene.  Lignite, shale and peat tars are treated using as selective solvent phenol diluted with water. Lignite tar containing creosote and wax is fed from a tank 1 at 60 DEG  C. through a centrifuge 3a, where solid impurities are removed, and through a pre-heater 4a to a gear wheel pump 6 also fed with an equal amount of phenol containing 10 per cent of water from a preheater 4b and a tank 20a . . . d.  Meters 5a, 5b are provided. The mixture is separated in a centrifuge 3b.  The extract flows into a tank 18 from which it passes at 40 DEG  C. to a second gear wheel pump 6a to which benzine at 20 DEG  C. or lower, is admitted from one of the tanks 16, 17.  The mixture passes through a cooler 7 at 20 DEG C. to a centrifuge 3c to yield a second extract and raffinate.  The first and second raffinates and the second extract are freed from solvents in distilling columns 9, 10, 11 respectively provided with pre-heaters 8a . . c, and receivers 21, 22a, 22b.  The distilling columns contain Raschig rings.  The first step may be effected by using the solvent in several portions.  The raffinates after dewaxing are used as lubricating oils.  The extract may be used as Diesel fuel, or after concentration, used in the preparation of road surfacing materials.
Patent GB-1429931-A (GB)
Title: Liquid level measuring apparatus
IPC: G01F23/16
Filed: 1972-05-09
Abstract: 1429931 Liquid level indication EAST BRISTOL ENGS Ltd 8 May 1973 [9 May 1972] 21582/72 Addition to 1379554 Heading G1H In an improvement or modification of liquid level measuring or indicating apparatus of the Specification 1379554 a sensing element 20, fitted inside or outside of a tank, has two diaphragms 40, 50 or 340, 350 bounding a gas-filled space/s 31 or 310a, 310b and the diaphragms are respectively coupled on inlet valve 35 or 335 and an exhaust valve 36 or 336 which control the supply and exhaust to the gas-filled space/s 31 or 310a, 310b and the arrangement is such that the diaphragms 40, 50 or 340, 350 form part of a liquid filled chamber 5 or 500 which only communicates with the liquid the level of which is to be measured.
Patent GB-1090808-A (GB)
Title: A process for preparing a polymer or a copolymer of an alpha-olefin
IPC: C08F297/08
Filed: 1965-05-21
Abstract: A homopolymer of an alpha-olefine monomer having at least 3 carbon atoms or a copolymer thereof with one or more other alpha-olefines, said polymer having a viscosity of 0.5 to 1.0 in Decalin at 145 DEG C., is prepared by polymerizing the alpha-olefine or alpha-olefines in liquid form using a titanium trichloride-aluminium alkyl catalyst in the presence of hydrogen, the partial pressure of the hydrogen being from 40 to 1000 p.s.i.a., and the total reaction pressure being sufficient to maintain the alpha-olefine monomer in liquid form during the polymerization. The alpha-olefines generally have 3 to 10 carbon atoms and the other alpha-olefines 2 to 10 carbon atoms.  In copolymerization reactions involving ethylene, the ethylene is introduced dissolved in the other liquid monomer or is dissolved in the reactor in the other liquid monomer.  Small amounts of diluents may be present.  The preferred catalysts are TiCl3 nAlCl3 where n is 0.1 to 1.0, activated with an aluminium alkyl compound.  Block copolymers may be prepared by recovering a homopolymer containing catalyst residues prepared as above and then contacting the homopolymer with at least one additional alpha-olefine monomer to form a subsequent polymer attached to the homopolymer and recovering from the polymerization a block copolymer having a melt flow varying from 10 to 400 as determined by ASTM-D-1238-62T at 230 DEG  C. and a 2160 gram load.  In the examples, propylene is homopolymerized or copolymerized with ethylene and then ethylene or ethylene and propylene are copolymerized on to the backbone polymer.
Patent GB-275801-A (GB)
Title: Improvements in or relating to kettles
IPC: A47J36/14
Filed: 1926-09-03
Abstract: 275,801. Marris's, Ltd., and Marris, R. G. Sept. 3, 1926. Stoppers, means to prevent loss of.-To prevent loss, the screw or other closure plug 7 of the spout of a " picnic " kettle is attached to one end of a wire or rod 9 passing through a tubular guide sleeve 10 brazed to a formal integral with the spout, the free end of the wire being cranked at 9<b> to form a stop.
Patent GB-336018-A (GB)
Title: Improvements in the manufacture of trays, and frames for mirrors, pictures and the like
IPC: A47G23/06
Filed: 1929-07-15
Abstract: 336,018. Hyson, J. E. R., Nelson, A. M., and Hudson, G. H. July 15, 1929. Trays, and frames for mirrors, pictures, &c. are made by cutting an endless marginal portion from a blank of wood, plywood, metal, &c. of the required size and shape, so as to form a moulding 3 and a base 1, which are united, so as to lie in different planes, by an intermediate member 2 in the form of an endless fillet, which overlaps the base and has its outer periphery flush with that of the moulding 3. When the construction is applied to a frame, the base 1 is recessed to receive the picture or mirror-glass 4.
Patent GB-1301784-A (GB)
IPC: A23C7/02
Filed: 1971-04-19
Abstract: 1301784 Cleaning composition STICHTING BEDRIJVEN VAN HET NEDERLANDS INSTITUUT VOOR ZUIVELONDERZOEK 19 April 1971 [13 Feb 1970] 21720/71 Heading C5D A cleaning composition comprises (a) up to 40 parts by weight of an alkali metal hydroxide, (b) 25y to 150y parts of a sequestering agent containing amino and carboxylic groups (y is the number of grams of sequestering agent which binds the same amount of calcium as 1 gram of EDTA tetrasodium salt), (c) 2 to 100 parts of a condensed phosphate, (d) up to 30 parts of an alkali metal silicate and (e) 0À1 to 5 parts of a non-ionic surface-active agent. The composition may be dissolved in water and used to clean heat exchangers and other apparatus for handling aqueous liquids. The cleaned surfaces may then be rinsed with water. Ingredients specified include: alkali metal hydroxide: sodium hydroxide; sequestering agents: N-hydroxyethyl ethylene diamine triacetic acid, diethylene triamine penta-acetic acid, nitrilo-triacetic acid, ethylene diamine tetra-acetic acid and sodium salts thereof; phosphates: sodium hexametaphosphate, sodium tetraphosphate and sodium triphosphate; silicates: sodium meta-silicate, sodium disilicate and sodium tetrasilicate; and nonionic surface-active agents: nonylphenoxypolyethoxyethanol.
Patent GB-1305315-A (GB)
IPC: B21C43/00
Filed: 1971-04-19
Abstract: 1305315 Abrading BOHLER & CO AG Gebr 19 April 1971 [13 Feb 1970] 21781/71 Heading B3D Elongated stock, e.g. wire, to be cleaned, is drawn through an agitated body of particulate scouring agent, e.g. pumice, blast-furnace slag or gravel, and a liquid is continuously applied to the scouring agent to entrain abraded particles, which are thus withdrawn, together with the liquid, from the body of scouring agent. As shown, the scouring agent is retained in a drum having a sieve-like wall 6 and rotatably mounted on trunnions 12, 13. The liquid, e.g. water, is applied by a spray pipe 20. The wire is fed through apertures 16, 17. Scouring agent is prevented from passing through aperture 17 by compressed air supplied at 18. The drum is rotated by a motor-driven sprocket (not shown) engaging a sprocket 5. The inside surface of the drum is formed with blades, Fig. 3 (not shown), for agitating the scouring agent, and a section of the drum wall is hinged to permit access to the drum interior.
Patent GB-239052-A (GB)
Title: Improved method or process of rolling certain metal sections, and machinery or appliances for use therein
IPC: B21H7/00
Filed: 1924-09-16
Abstract: 239,052. Webb, S., and Guest, H. C. Sept. 16, 1924. Rolling profile bars. -Dovetail grooves are produced in metal sections by firstly rolling grooves with vertical sides and projecting ridges a as in Fig. 1, and then forming the dovetail groove on one side of all the grooves as in Fig. 2 by passing between rolls d, e as in Fig. 4, the other sides being formed by another pass through a similar but oppositely inclined pair of rolls to complete the groove. The conical roll e or e<1> is provided with clearances g to prevent displacement of the ridge opposite the side being formed by the conical part f. The last two passes may be made through a single pair of reversely tapered rolls, one pass being made at each side, or the rolls may be arranged in two pairs, one for each pass and in this case the rolls may be so mounted that the plane of the pass is horizontal.
Patent GB-1464693-A (GB)
Title: Device for detecting short-circuit between electrodes in electrolytic cell
IPC: G01R31/02
Filed: 1975-05-21
Abstract: 1464693 Detecting short circuit current in electrolytic cells MITSUI MINING & SMELTING CO Ltd 21 May 1975 21836/75 Heading G1U Excessive, i.e. short-circuit, current in the anode or cathode 7, Fig. 2, of an electrolytic cell is detected by bringing a reed switch 16 into close proximity of the electrode 7. The reed switch 16 is housed in an appropriate box which also supports a lamp 14 and a biasing magnet 17. According to the invention, a plurality of these detectors 10, Fig. 1 are mounted on a beam 11 forming part of a travelling gantry. In use the gantry is first positioned with the beam 11 over a row of electrodes in an electrolytic cell. The beam is then lowered so that the detectors come into contact, as shown in Fig. 2, with respective electrodes, and a supply potential is connected across each series-connected switch 16 and lamp 14. Those lamps that light indicate which electrodes carry excessive current. Relay controlled circuits, Figs. 3 and 4 (not shown) are described for causing the automatic sequential testing of successive rows of electrodes. When an excessive current is detected, automatic sequencing is interrupted until an operator actuates an appropriate key.
Patent GB-756674-A (GB)
Title: Improvements in or relating to soil sterilizing compositions
IPC: A01N29/02
Filed: 1953-08-07
Abstract: A composition for the treatment of growth media i.e. all conventional soils such as substances or media in which vegetative organisms may take root and grow, comprises propargyl bromide as an active ingredient in combination with a diluent or carrier which may be a finely divided inert solid, a dispersing or emulsifying agent or a petroleum distillate.  The concentration of toxicant in liquid compositions is from about 0,1 to 50 per cent by weight or higher, in dusts from about 6 to 20 per cent by weight and in compositions to be employed as concentrates from about 10 to 95 per cent by weight. Specified dispersing and emulsifying agents include the condensation products of alkylene oxides with phenols and organic acids, polyoxyethylene derivatives of sorbitan esters, alkyl aryl sulphonates, complex ether alcohols, mahogany soaps.  Specified finely divided solids are chalk, talc, pyrophyllite, attapulgite, Fuller's earth or bentonite.
Patent GB-1103556-A (GB)
Title: Labeler
Inventor: SMITH RUSLON JOHN
IPC: B65C1/02
Filed: 1965-05-24
Abstract: 1,103,556. Coating apparatus. EUREKA SPECIALITY PRINTING CO. 24, May, 1965 [3, June, 1964], No. 21926/65. Heading B2L. [Also in Divisions B6 and B8] Apparatus for applying labels or the like to cans or other articles passing on a conventional conveyer 42 comprises a worm 44 for spacing the articles and synchronising the apparatus operation by microswitches 62, 63 and a vacuum wheel 45 which extracts a label from a magazine passes it under a gumming nozzle 202 and applies it to the can. Label feeding:- Vacuum is applied and rotation of the wheel 45 is initiated when a can engages the arms 64 of the microswitches 62, 63, the arrangement being such that maximum suction is applied at the extraction position, a holding suction while the label passes the gumming nozzle and then the nozzle is bled to atmosphere at the labelling position. The magazine is adjustably mounted and is provided with spring urged sponge rubber covered wheels at its delivery end to control the label stack. Gumming:- As described liquid wax is applied to each label through a nozzle 202 of a heated container under the control of a valve operated by each label as it passes between a photo-electric cell and a light source mounted on an adjustable arm 121.
Patent GB-443366-A (GB)
Title: Improvements in and relating to wire broadcasting systems
IPC: H04H20/84
Filed: 1934-07-26
Abstract: 443,366. Wired wireless systems. ECKERSLEY, P. P., 82, Swan Court, Manor Street, Chelsea, London, and CARPENTER, R. E. H., 35, Croham Valley Road, Croydon. July 26, 1934, No. 21940. [Class 40 (iv)] In a system in which broadcast programmes are distributed over a power network by carrier waves, in order to avoid reflection effects the feeder is terminated by a resistance and capacity in series, the resistance having a value substantially equal to the characteristic impedance of the feeder and the capacity being such as to present a low impedance to the carrier frequencies. The outputs of the broadcast transmitters 3, Fig. 1, are combined and connected on the one hand to the sheath S and on the other hand through condensers C1-4 to the three phase conductors P1-3 and the neutral conductor N of a power network. The neutral conductor may be earthed through an inductance 2 which offers a high impedance to the carrier frequencies. At the far end of the feeder, the conductors are connected through condensers C<1> 1-4 and the common point is connected to the sheath through a resistance R which has a value substantially equal to the characteristic impedance of the feeder. In a modification, Fig. 2, the resistance R is replaced by four resistances R1-4 one in series with each condenser C<1> 1-4, the value of each resistance being approximately four times that of R. The terminating resistance or resistances may take the form of a fuse or fuses adapted to open circuit in the event of failure of a condenser. Subsidiary feeders when of substantial length are terminated in a similar manner. Fig. 4 shows a looped branch feeder terminated in this manner at the point where it rejoins the main feeder, additional inductances L1-4 being inserted in the branch conductors to act as chokes for the carrier frequencies. The uniformity of response may be further improved in some cases by connecting condensers between the conductors and the sheath at intervals along the feeder.
Patent GB-1465045-A (GB)
Title: Multi-track magnetic recording and/or playback head assemblies
IPC: G11B5/29
Filed: 1974-05-03
Abstract: 1465045 Multi-track magnetic heads MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 3 May 1974 [8 May 1973] 21981/73 Heading G5R A multi-track magnetic head assembly is made by glass-bonding together two magnetic members to form a unitary body with a transducing gap 18 therein and a bore 12, 13 therethrough, the bore being formed by grooves 12, 13 in the original member, forming a first slot or slots 20a to 20c transverse to and extending through said bore 12, 13, filling said bore and first slot or slots with molten glass except for a hollow through said bore, making a respective second slot, (23a) to (23c), Fig. 4 (not shown), at the previous location of the or each first slot, inserting an electrical conductor 28 in said hollow, making electrical connection within the or each second slot to conductor 28, and removing material from the body to define a working face 40 at which transducing gaps, formed by parts of the initial gap 18, are exposed, the elemental heads of the assembly being spaced from one another by the second slot or slots. The magnetic members may be of manganese-zinc ferrite or nickel-zinc ferrite. The hollow for conductor rod 28, which may be copper, solder, iron, aluminium or phosphor bronze, may be formed by locating a mica, carbon or bamboo rod 22 in the bore 12, 13 and removing rod 22 by drilling after the glass-filling operation, or by locating a ceramic or platinum tube (26), Fig. 5 (not shown), in the bore 12, 13, the cutting of the second slots (23) dividing tube (26) into a plurality of parts through which rod 28 is inserted. Magnetic shield plates 34 may be located in the first slots 20 before the glass-filling operation. The rod 28 is connected electrically to two conductive plates 29 in each second slot (23), which plates 29 may be separated by an electrically insulating sheet 31 of mica or magnetic ferrite to form, with end conductor plates 30, single turn windings for each head element. Rod 28 and plates 29 can be connected by filling slots (23) with an electrically conductive adhesive such as solder or silver paint, or rod 28 and/or plates 29, 30 are of solder and are connected by heating, or rod 28 and/or plates 29, 30 are covered with solder and connected by heating; the remaining spaces in slots (23) may be filled with resin. Specifications 1,356,814 and 1,365,131 are referred to.
Patent GB-883613-A (GB)
Title: Improvements in or relating to the production of crimped yarn
IPC: D02G1/02
Filed: 1960-06-23
Abstract: 883,613. Crimping yarns. HEBERLEIN & CO. A. G. June 23, 1960 [July 9, 1959], No. 22006/60. Class 120(3) Yarn of polyamide or polyester continuous filaments is crimped by causing it to move through a path on which it encounters, successively, a twist-stop, a heated surface to effect heat-setting of the twist in the yarn by contact, a twister of a false-twisting device, a second twist-stop, then in the reverse direction the same heated surface to effect a reduction in the extensibility of the yarn, and a third twist-stop. In the apparatus shown, yarn G passes around a roller W1 of a double roller, across the curved surface H1 of an electrically heated metal plate H, through an air zone and a false-twister M, around a roller D2, then returns across the surface H1 over a length X determined by an adjustable yarn guide F which may be disposed between roller D2 and surface H1 or on the latter, and around a roller W2. The dimensions of roller W1, exchangeable roller W2 and roller D2 may be predetermined and their relative peripheral speeds adjusted to produce tensions of 0À005- 0À5 grms./denier in the yarn between roller D2 and roller W2.
Patent GB-1013873-A (GB)
Title: Machine for testing anchors
Inventor: WRIGHT KENNETH LLEWELYN
IPC: G01L5/00
Filed: 1963-05-31
Abstract: 1,013,873. Testing anchors. NORTH BRITISH ELECTRIC CO. Ltd., and K. L. WRIGHT. June 1, 1964 [May 31, 1963], No. 22019/63. Heading B7S. A machine for testing anchors (two anchors 13 coupled by a shackle 14 for testing simultaneously or one anchor coupled to a dummy) incorporates a rectangular frame 1, two slides 6, 7 mounted in the frame at the same level and movable longitudinally of the frame, and at least one fluid-pressure cylinder 11 disposed between the slides and operable to apply a thrust in opposite directions to the adjacent ends of both slides, the other ends of which present abutments 12 engageable with the flukes of the anchors.
Patent GB-817907-A (GB)
Title: A method and means for the feeding and cutting off of wires in spring-winding, wire-bending, wire-straightening and like machines
IPC: B21F3/04
Filed: 1956-07-17
Abstract: 817,907. Making springs; feeding and cutting; coiling. HACK, K. July 17, 1956, No. 22022/56. Classes 83 (2) and 83 (4). In a method for feeding and cutting off wire in spring winding, wire-bending, wire-straightening and like machines, the wire from a continuous stock is brought to the working tools under tension and whilst the worked portion of the wire is being cut off the unworked portion immediately behind it is held, this holding continuing until such unworked portion is engaged by the working tools. Apparatus for coiling a fine-wire spring comprises camoperated jaws 3 and 9, Figs. 5 and 6, carried on spring-loaded arms 4, 15 which are geared together and pivotally mounted on shafts 25, 26 rotatable in a slide 22. The arms 4, 15 are biased apart by a spring and are closed by an adjustable cam 33. The jaw 3 is adjustably fixed while the jaw 9 is slidably mounted in the arm 15 and urged by a spring, the clampng pressure being adjusted by a screw 16. While the jaws are open the tip of jaw 9 projects beyond a knife 12 mounted adjacent to it. The knife 12 is interchangeable and may be mounted on either jaw. A winding spindle 44 carries a mandrel 47 and may be raised or lowered by a two-part cam 49. During operation the jaws are closed to grip the wire stock 1 already tensioned by a previous spring-winding operation, the spring being thereby compressed, retracting the jaw 9 to expose the knife 12 which coacts with edge 19 of the jaw 3 to cut the wire during completion of the movement of the pivoted arms. Prior to cutting the wire but after gripping it the mandrel begins its ascent to free a previously-formed spring. After cutting the wire, further stock is drawn out to a position under the mandrel by actuating the slide 22. The spindle is then lowered, the wire being located between the mandrel and a carrier claw 46 and rotated to coil the wire to form a spring; during coiling the jaws open and return to their initial position. The base-plate 23 may be displaced by means of a knurled nut 41 to locate the run of the wire stock for winding right or left-hand springs. The invention may be applied to working thick wires, operation then being by electromagnetic or hydraulic means.
Patent GB-1032680-A (GB)
Title: Improvements in or relating to electronic delay lines
IPC: H01J25/38
Filed: 1964-05-28
Abstract: 1,032,680. Travelling wave tubes. C.S.F. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. May 28, 1964 [June 12, 1963; Feb. 4, 1964], No. 22076/64. Heading H1D. An electron beam tube for use as a signal delay tube operates on the fast cyclotron wave mode and comprises a delay-less drift space region disposed between input and output periodic delay line sections 7, 9, the beam being subjected to crossed electric and magnetic fields and the velocity of the beam being arranged to be substantially equal to the group velocity of the wave propagating along the delay line sections. The fast cyclotron wave propagating along the beam may be a forward wave, as shown, in which case the delay lines are ladder lines, or it may be a backward wave when an interdi itated line is used. The translational velocity Ve of the beam within the drift space, and hence the signal delay characteristics of the beam, is varied by adjustment of the transverse field set up between the electrodes 6, 8, the beam describing trochoidal trajectories within this space. The device may be used as a detector, Fig. 8 (not shown), in which the output delay line is omitted and the output signal is obtained from a collector circuit.