baber/WOPTO huggingface dataset:
Patent GB-1139450-A (GB)
Title: Process for the preparation of a catalyst-forming component suitable for polymerizing -‡-olefins to powders with improved properties
Inventor: GAUTIER PIETER ANTOINE
IPC: C08F4/64
Filed: 1967-12-27
Abstract: 1,139,450. Catalyst. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 27 Dec., 1967, No. 58661/67. Heading C3P. In the polymerization of α-olefins having up to six carbon atoms to polymer powders, preferably isotactic polypropylene, with improved bulk density and flow properties, a suitable catalyst component is formed by (1) mixing diethylaluminium monoohloride and titanium tetrachloride below - 5‹ C. in a molar ratio in the range of 0À5: 1 to 1À2: 1 in a paraffinic diluent, substantially free of oxygen, in a reaction vessel whose contents are stirred at a specific stirring power within the range of 50 to 2000 watt/m<SP>3</SP> and (2) subsequently increasing the temperature of the mixture to at least + 15‹ C. whilst stirring with the above stirring power range at least as long as the temperature is below + 15‹ C. The temperature of the mixture may be increased from below -5‹ C. to within the range of 70‹ to 200‹ C. and subsequently lowered to ambient temperature below 70‹ C. whilst stirring is continued at a specific power not necessarily in the above range as soon as the temperature is above +15‹ C. Preferably, the reaction vessel is unbaffled and the contents of the vessel stirred with an agitator, such as a turbine stirrer, sweeping a volume of less than 10% of the internal vessel volume and rotating with a tip speed of more than 0.5 meter per second. Preferably, the TiCl 4  and AlEt 2 Cl are gradually mixed at a substantially constant temperature above -45‹ C. to attain the molar ratio of 0À5-1À2 in at least one hour but at most eight hours. The reaction vessel may be cooled to below - 5‹ C. before the aluminium or titanium compound is added. The stirring power may be kept within the range of 80 to 800 watt/m<SP>3</SP> at least as long as the temperature is below + 15‹ C., and the power may be kept constant. The stirring conditions applied below +15‹ C. may be maintained in the region of +15‹ to +70‹ C., or may be increased in the region + 15‹ to + 45‹ C., and the mixture may be maintained in this latter temperature range for at least ¥ hr. During the reaction, monethyl aluminium chloride is formed, and this may be removed, or converted to diethylaluminium chloride or complex, with for example a Lewis base. A catalyst composition comprising at least two components may be formed by mixing TiCl 4  and AlEt 2 Cl at different specific mixing speeds. In the examples, a catalyst component was prepared by the above method and undesirable aluminium ethyl dichloride removed with dibutyl ether. The component was mixed with an activator comprising aluminium diethyl chloride and propylene was polymerized. The polymerization was terminated using nitrogen and a mixture of sec-butanol and hydrogen chloride, followed by steam distillation. The polymer was extracted with boiling diethy] ether.
Patent GB-1244370-A (GB)
Title: Improvements in implement retainers for percussion tools
IPC: B25D17/08
Filed: 1968-12-17
Abstract: 1,244,370. Percussive tools. ATLAS COPCO A.B. 17 Dec., 1968 [27 Dec., 1967],No. 59864/68. Heading B4C. A percussive tool in which hammer blows are imparted to an implement 4 by a piston 2 driven by a pressure fluid comprises a retainer for the implement. The retainer includes a conical sleeve 9 of a resilient material, e.g. rubber which has inwardly directed flanges 11 and 17. The flange 11 engages a groove 12 in the tool body. A split ring of spring steel or a continuous ring 13 may be used to increase the grip of the sleeve on the body. The retainer is initially positioned on the body and an implement is introduced into the tool by pushing the shank end 6 and collar 5 through an opening 22 in a steel ring 19 and an opening 18 in the sleeve. A slit 15 may be provided to ease the placing of the implement in the tool. The ring 19 is removed when it is desired to remove the tool. In an alternative embodiment (Fig. 3, not shown) upwardly directed lugs on the tool body engage with apertures in the sleeve. A skirt (30), (Fig. 4, not shown) may extend upwardly from the ring, and may be integral with or separate from the ring.
Patent GB-1450077-A (GB)
Title: Dishwasher and spray system therefor
IPC: A47L15/23
Filed: 1973-12-31
Abstract: 1450077 Dishwashing machines GENERAL ELECTRIC CO 31 Dec 1973 [2 Jan 1973] 60203/73 Heading A4F In a dishwashing machine having a side door 38 and dish racks 18, 20, 22 mounted for movement at least partially out of the washing chamber, there is provided a spray pipe 98 having upper and lower spray openings 126, 128 providing generally oppositely directed spray producing opposite tilting moments on the spray pipe 98, which is mounted for generally vertical telescoping movement relative to a stand pipe 92, in response to the delivery of pressurized washing liquid to the pipes, and a seal is operative to reduce leakage between the pipes 92, 98. As illustrated the seal comprises sealing surfaces 134, 136 respectively on a hub 130 on the pipe 98 and the end-wall 132 of the pipe 92. The opening 128 is made larger than the opening 126 so that the turning moments exerted on the pipe 98 by the two jets discharged from the openings counterbalance to avoid tilting of the pipe 98 relatively to the pipe 92 and breaking of the seal. The pipes 92, 98 rotate with a spraying arm 96 of the reaction type having a star wheel 114 rotated by an indexing roller 116, and the pipe 98 may extend above or to just beneath the upper basket 22.
Patent GB-1218260-A (GB)
Title: Improvements in or relating to yarn mercerizing apparatus
Inventor: ABEGG HENRY EDUARD OSCAR
IPC: D06B7/04
Filed: 1968-12-24
Abstract: 1,218,260. Mercerizing yarn. H. E. O. ABEGG. 24 Dec., 1968 [12 Jan., 1968], No. 61247/ 68. Heading D1L. Yarn 3 runs under tension round spacedapart tapered rolls 1 and 2 from the narrow to the wide ends thereof and contacts one or two liquids in a downwardly-inclined channel 10 formed between roll 2 and a third roll 9 urged against it. Water or a liquid rinsing agent is introduced into the upper end of channel 10 via a pipe 12 and flows away through an annular groove 11 in roll 9, and metered quantities of dye are supplied downstream of groove 11 via a pipe 13. The shafts of rolls 1 and 2 are at a slight angle to facilitate automatic advance of the yarn along the rolls.
Patent GB-1269859-A (GB)
Title: Magnetisable particulate material
IPC: H01F1/06
Filed: 1969-12-19
Abstract: 1,269,859. Magnetic materials. INTERNATIONAL BUSINESS MACHINES CORP. 19 Dec., 1969 [14 Jan., 1969], No. 61928/69. Heading H1H. [Also in Divisions C1 and C2] Magnetic particles are made by dissolving a salt of one or more of cobalt, nickel and iron in a dialkyl sulphoxide containing dissolved oxalate ions, precipitating metal oxalate by adding water, separating the precipitate and either (1) reducing it with a reducing gas e.g. H 2  at elevated temperature (eg. 375-400 C.) to recover metal particles; or (2) heating it at 100-450 C. in presence of O 2  to recover metal oxide. The water-diluted dialkyl sulphoxide solution may be agitated ultrasonically to produce a finer and more uniform precipitate. Examples describe the preparation of Fe, Fe-Co alloy, Fe-Ni-Co alloy, Co, P-modified Co, and iron oxide modified with manganese and cobalt oxides. Magnetic recording media are made by dispersing the particles in a solution of a polymeric binder (many specified), coating on to a substrate and drying to remove solvent. Magnetic cores 'and permanent magnets may be made by mixing the particles with non- magnetic filler, orientating in a magnetic field, and pressing.
Patent GB-1288303-A (GB)
IPC: H01C7/04
Filed: 1969-12-31
Abstract: 1288303 Thermistors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 31 Dec 1969 [31 Dec 1968] 63486/69 Heading H1K A thermistor bolometer comprises an IR transparent hemispherical lens on the plane face of which are formed insulating layers on which are deposited two metal oxide thermistor elements by cathode sputtering, one of the thermistors being positioned at the centre of the face of the lens and the other being positioned outside the central area and shaded from incident IR radiation. As shown, Fig. 1, a Ge lens 11 is provided with a metal layer 15 comprising a thin layer of Ni-Cr covered by a thicker layer of Ni, a layer 16 of silicon monoxide is formed by vacuum deposition or cathode sputtering, and a diffusion barrier 17 of silicon nitride is deposited by cathode sputtering. Four electrodes 18, 19, 20, 21 of Ni-Cr covered with Ni are vacuum deposited through a mask, two layers 22, 23 of thermistor material are deposited by cathode sputtering of the material or by reactive cathode sputtering of the constituent metals, and the electrodes are completed by layers (24, 25, 26, 27 ) comprising Ni-Cr covered with Ni coated with Au to provide pads to which wires may be connected by thermocompression bonding. The thermistor material may be one or more transition metal oxides and may comprise 75% manganese oxide, 20% nickel oxide and 5% cobalt oxide. The IR radiation incident on the lens is directed on to the central thermistor 12 but is screened from the second thermistor 13 by the metal layer 15 so that this device detects the ambient temperature for use in a compensation circuit. In a modification, Figs. 3 and 4 (not shown), a thin Ni-Cr layer is formed at each thermistor site to provide a transparent electrode on which is deposited the thermistor material. A second electrode is deposited on the upper face of the thermistor material and extends on to the insulating layer to form a bonding pad. This overlying electrode also forms a reflector for the radiation which passes through the thermistor material.
Patent GB-691913-A (GB)
Abstract: 691,913. Chain wheels. OELLRICH, A., [trading as MASCHINENFABRIK U. EISENGIESSEREI A. BEIEN]. Dec. 19, 1949 [Sept. 2, 1949], No. 32500/49. Class 80 (i). [Also in Group XXX] A double chain scraper conveyer is driven by a double sprocket wheel 5 divided approximately axially into two halves which are fixed together on the driving shaft 6 by means of screws 16 passing through transverse holes in the shaft. The mating halves have a co-operating lug 20 and recess 21 so that when joined material is prevented from penetrating to the shaft along the joint 19.
Patent GB-722738-A (GB)
Abstract: 722,738. Gas-fueled lighters. REICH, O. May 26, 1952 [May 26, 1951], No. 13280/52. Class 75 (3) In a gas-fueled friction-wheel ignitor having a fuel container provided with an outlet valve and a finger-actuated ignition mechanism, a valveoperating means, such as a lever serving solely to operate the gas valve, has a member, the end of which is located in the natural path of the finger which actuates the ignition mechanism so that during and after actuation of the ignition mechanism the member is moved by the finger to open the valve and, when the finger is withdrawn, the member brings or allows the valve to return to the closed position. The valve 13 is opened by rocking a lever 10, mounted on a pin 11 fixed in the casing 1, against a spring 17. Accidental rocking of the lever 10 is prevented by a nose 23 of a safety catch 6 engaging an abutment 24. The catch 6 is pivotally mounted on the lever 10 and is spring biased to the locking position. Manual rotation of a friction wheel operating disc 4 simultaneously moves the catch 6 out of the locking position thus enabling the lever 10 to be rocked and the valve 13 opened, The gas-filled reservoir 12 is held in position within the casing 1 by inwardly turned ends 15 of a spring 14 extending beneath the reservoir 12, engaging holes 16 in the casing. In an alternative arrangement the valve 13 may be fixed to the lighter casing and the fuel container 12 moved up and down by the member 10.
Patent GB-2030047-A (GB)
Title: Rescue apparatus
IPC: A61G1/044
Filed: 1978-09-14
Abstract: An apparatus for rescuing immobile persons, comprising a sheet to be located under a mattress and straps as claimed in specification 1,434,832 has tabs 16 with hook end loop material elements to retain the straps 4 in position adjacent the sheet until such time that the straps are needed for use. <IMAGE>
Patent GB-2004845-A (GB)
Title: Continuous web supply apparatus
IPC: B65H23/24
Filed: 1978-09-18
Abstract: Apparatus for supplying a paper web to a continuous-rod cigarette- making machine, comprises (endless belt) means (10) for rotating a reel of web and a rotary feed device, such as a suction roller (6), which operates at a speed higher than that at which web is delivered and exerts a non-positive grip on the web to drive the web past a splicing unit (5) into a buffer reservoir (7); thus, when the reel rotating means stops, the rotary feed device slips relative to the stationary web. <IMAGE>
Patent GB-2030277-A (GB)
Title: Container for storage of articles and device for utilization of solid carbon dioxide
IPC: F25D3/14
Filed: 1978-09-27
Abstract: A heat insulated container 12 for cold storage of articles has a device therewithin for containing solid CO2 40. The device has a heat insulated body 30 with an internal cavity 35 open to a rim 38 thereof, the rim 38 resting on a lower heat conductive plate 26 within the container 12 such that the device can be positioned as desired in the container 12 with the open end of the cavity facing the heat conductive plate 26. Solid CO2 40 is positioned within the cavity 35, resting on a plate 42 mounted therewithin and movable in the cavity 35 as by a manually-operable rod 46 to vary the spacing of the solid CO2 40 from the heat conductive plate 26, thus to vary the cooling effect of the solid CO2 40. <IMAGE>
Patent GB-2006847-A (GB)
Title: Peroxygen bleaching and compositions therefor
IPC: D06L4/12
Filed: 1978-09-29
Abstract: The present invention relates to a process of removing soil and/or stains from fabrics by immersing the fabrics in a peroxygen bleach bath containing as a peroxygen activator a sulfonic anhydride of the formula R<1>SO2-O-SO<2>R<2> wherein each of R<1> and R<2> which may be alike or different, is a radical selected from an alkyl radical; a cycloalkyl radical; and an aromatic ring system as herein defined, or R<1> and R<2> taken together may complete an organic group. It also relates to bleaching compositions and detergent compositions containing said sulfonic anhydrides.
Patent GB-2018368-A (GB)
Title: Torque limiting clutch
IPC: F16D7/10
Filed: 1978-11-15
Abstract: A torque limiting clutch comprises a driving member 24 provided with a plurality of spaced apart radially extending recesses 40 which are adapted to engage clutch balls 52 located in radial grooves 48 of a driven member 46, 16 and urged outwardly by a spring 56 up to a predetermined torque. In one embodiment the balls 52 are acted upon by a spring-biased ring 54 having a wedge surface 66 coacting with the clutch balls. In another embodiment, the radial grooves have an inclined ramp along which the bails are forced against a flat- sided, spring-biassed ring. The force provided by the spring 56 may be adjustable to vary the torque value at which the clutch slips. <IMAGE>
Patent GB-2017582-A (GB)
Title: Positioning Printing Units
IPC: B41F17/14
Filed: 1979-02-21
Abstract: An assembly for positioning a station 15 for printing components such as tubes and other hollow bodies in relation to a component support, comprises a plurality e.g. two plates 2, 6 arranged parallel to one another and movable over a machine table and relative to one another. The one plate 2 is manually movable while the other plate 6 is motor driven. Plate 2 may carry a stop 4 of specific cross-section and a corresponding edge 14 of the other plate 6 has a complementary cross-section such that the stop defines an exact position for the other plate. The latter plate 6 carries the printing station 15 such that once the plates have been initially manually positioned relative to the component support, the printing station 15 can be moved away under power from the support for re-arrangement or the like but quickly and easily returned to its initial position. <IMAGE>
Patent GB-2020627-A (GB)
Title: Valved sack with frusto conical filling valve
IPC: B65D30/24
Filed: 1979-05-04
Abstract: For the purpose of avoiding stress concentrations when a tubular valve 5 of plastics film layers 11, 12 welded and/or heat-sealed to an otherwise closed plastics sack 1 is suspended from a filling machine, the valve diverges from a diameter in the sack interior substantially equal to the nipple diameter to a larger diameter at a position where the layers 11, 12 are connected to the sack walls by a side seam 6 of the sack. <IMAGE>
Patent GB-2051524-A (GB)
Title: Data transmission system
IPC: H04L12/437
Filed: 1979-06-14
Abstract: A data transmission system of the closed-loop type is so arranged that it is able to function even when the transmission path is affected by a short-circuit. The data is conveyed by modulating an alternating current, preferably using frequency-shift keying. Each station is coupled to the transmission path (1) via capacitors (2, 3) with the station equipment (4) on the "inside" of the two capacitors. Hence under normal conditions there is no direct current path around the loop. These capacitors are each coupled to the transmission path in series with a normally- closed contact of a relay, such as R5 or R6, connected between a direct current source and the outer side of the capacitor. Thus when a short occurs the nearest relays pull up to isolate the faulty portion of the transmission path. The same basic principle is also applicable to a two-wire loop system. <IMAGE>
Patent GB-2035694-A (GB)
Title: Selector switch for a tapped transformer
IPC: H01F29/02
Filed: 1979-10-11
Abstract: To facilitate changing the oil, the selector comprises a cylindrical housing (1), stationary electrical contacts (2) disposed at the internal wall surface of the housing (1), a rotatable insulated tube (4) disposed co-axially within the housing (1), movable electrical contacts (5) disposed at the external wall surface of the tube (4) to be rotatable therewith and to selectively contact the stationary electrical contacts (2), hollow rod means (9) extending axially through the tube (4), passage means (15, 17) extending between an axial end portion of the rod means (9) and the space within the housing (1) outside the tube (4), and passage means (10) between the axially opposite end portion of the rod means (9) and the exterior of the housing (1) for the passage of oil between the space within and the exterior of the housing (1). The rod (9) is secured in a cover (14) at one end and located in a hollow spigot (7) at its other end. Bearings (8) and (11) allow the tube (4) to be rotated by a Geneva wheel (13). <IMAGE>
Patent GB-2062679-A (GB)
Title: Electrical Extraction of Polar Substances from Solution
IPC: B03C9/00
Filed: 1979-11-09
Abstract: By exposing the solution to an electrically charged surface spaced a short distance from the solution, the liquid molecules of the polar substance e.g. water become sufficiently excited and attracted to break through the surface tension and migrate to the charged surface where they accumulate. Alternative embodiments disclose modified means for conveying the extracted substance from the treating area.
Patent GB-2043281-A (GB)
Title: Producing photosensitive lithographic printing plates
IPC: G03F7/115
Filed: 1979-11-30
Abstract: A photosensitive lithographic printing plate consists of a support bearing a layer comprising a continuous phase of photosensitive material having fine particles of resin dispersed therein. The layer is formed by coating with a solution containing the components of the continuous phase and the resin. The solvent is a mixture of a first solvent which is a solvent for the components of the continuous phase and a non-solvent for the resin and a second solvent which is a solvent for the resin, has a faster evaporation rate than the first solvent and is compatible therewith. When the coating is dried the second solvent evaporates preferentially causing the resin to flocculate to form a hard particulate precipitate dispersed in the continuous phase.
Patent GB-2055683-A (GB)
Title: Apparatus for inserting a lay flat tubular web in a circular-woven tube
IPC: D03D37/00
Filed: 1980-06-09
Abstract: In a circular loom (1), woven tubular fabric (3) is guided over a roller (12) in a flattened condition after having been provided with side pleats by external folding plates and internal spreaders (17). To introduce a lay flat tubular liner (11) in the fabric tube (3) during weaving and flattening, a flat frame (7) is supported within in the fabric tube (3). The frame (7) supports the spreaders (17) and has side members extending into the outer edges of the fabric tube (3) and guide rods (6) over which the liner (11) is fed in zig-zag formation by double belt conveyors. The frame (7) ensures that outer folded edges of the tubular liner (11) lie precisely in outer folded edges of the flattened fabric tube (3). <IMAGE>
Patent GB-2070697-A (GB)
Title: Fluid pump
IPC: F04B47/02
Filed: 1980-06-27
Abstract: A fluid pump particularly suited for manual operation and fitting easily into a cylindrical well casing 18 made of plastics material has a piston 30 and a check valve, both also made of plastics material. Both piston and valve have the same body structure so that the piston and the check valve may be used interchangeably by simply removing or adding minor components. These components incude a plate valve member 46 freely slidable along a coupling rod or stem 44 integral with the body structure, sealing rings 56, 58 to provide adequate sealing and sliding contact with the internal wall of the well casing 18, and an adapter which is mounted to the lower part of the body to form a check valve to secure it to the well casing. <IMAGE>
Patent GB-2084458-A (GB)
Title: Seat members
IPC: A47C1/16
Filed: 1980-09-09
Abstract: A seat member for converting wooden stadium benching into comfortable seating accommodation at low cost comprises a base portion (1, 4) including a load-bearing peripheral frame (1) and having a bottom face arranged to abut a planar support surface, bolts (7) for rigidly securing the frame to such a support surface and seating (2), overlying the inner area of the frame, secured to the frame in spaced, generally parallel, relation to the plane of the bottom face, the seating comprising a layer of resilient polymeric material arranged to carry the weight of a user in suspension from the frame whilst deforming into the space between the seating and the plane of the bottom surface. <IMAGE>
Patent GB-2060454-A (GB)
Title: Production of Spark Plug Electrodes
IPC: H01T21/02
Filed: 1980-09-11
Abstract: A right circular cylindrical billet (19) of a corrosion-resistant metal is formed into a cup (22) having closed and open ends (23) and (24), respectively and a concentric cavity (25) by backward extension. A close- fitting right circular cylindrical billet of a metal having a high thermal conductivity is press-fitted into the cavity (25) to form a composite billet which is inserted into a close-fitting bore of a die (50) having an extrusion orifice (53) of a diameter less than that of the bore. A plunger (55) extrudes all of the composite billet except a terminal portion (58) adjacent the filled end to form an electrode blank (57) having a core (60) and a shell (61) with an upper headed portion (58) and a rod portion (59). <IMAGE>
Patent GB-2066195-A (GB)
Title: Electrostatic painting apparatus
IPC: B05B5/08
Filed: 1980-10-02
Abstract: Electrostatic painting apparatus include carriers which are not adjustable to accomodate engines of various sizes during the painting process. The apparatus (10) of this invention includes a carrier (12) having a pair of brackets (14) slidably mounted thereon to overcome the above adjustment problem. The brackets function to fully support an engine (W) during the painting process. Each bracket is electrically insulated on the carrier by a non-metallic sleeve (18).