baber/WOPTO huggingface dataset:
Patent GB-1526366-A (GB)
Title: Expanding plug
IPC: E21D20/00
Filed: 1976-09-16
Abstract: 1526366 Wall plugs A GERHARD 16 Sept 1976 [20 Sept 1975] 38351/76 Heading F2H An expansible wall plug 1 of conical form comprises two longitudinally separate halves held together by means which can be overcome when the plug is expanded by a cylindrical screw, with spaced circumferential ribs 3 of sharp-edged cross-section, the ribs 3 all having the same overall diameter as the maximum plug diameter 7. The spacing between successive ribs 3 is not constant. The wall thickness of the plug is substantially constant and the interior surface may have a raised thread 4 for engagement by the screw. As shown, the plug halves each have a semi-cylindrical extension 5 at the rear end, a ring 6 encircling the extensions 5 to hold together the two halves. Alternatively the halves may have full-length overlapping resilient flanges.
Patent GB-998574-A (GB)
Title: Oil seals
IPC: F16J15/32
Filed: 1961-10-27
Abstract: 998,574. Seals. ILLINOIS MILLING Inc. Oct. 27, 1961 [June 14, 19611, No. 38561/61. Heading F2B. A seal 30 between the rotating surfaces of an engine block 10 and a bearing cup 14 which supports a rotatable crank-shaft 12, Fig. 2, consists of an arcuate body 32, Fig. 3, which is received in a groove in the cap 14 with its free ends 34, 36 disposed adjacent to the mating surface of the block 10, the body having an inner surface 60 extending continuously through an arc of 180 degrees between the ends 34, 36, and a pair of radially, outwardly-extending arms 38, 40 which are joined to the body 32 adjacent its free ends and are received in recesses 74, 82 in the mating surface of the cap 14. The seal 30 is of silicone rubber. The body 32 is reinforced by a steel core 42 and is formed with outwardly converging sides 44, 46, Fig. 7. The outer periphery of the body is provided with semi-annular beads 48, 50 which are supported at intervals by ribs 54, Fig. 4, against an intermediate crown portion 52 to prevent excessive flexure of the beads upon insertion of the seal in the groove of the cap 14. The inner periphery of the body is integrally formed with a cantilevered sealing lip 58, the sealing surface 60 of which has a truncated semi-conical shape which is deformed to a cylindrical shape when the lip 58 is engaged with the crank-shaft 12 to prevent axial leakage of fluid. The lip 58 is formed with abutting and receiving portions 64, 66 which respectively extend above, and are recessed from, the free ends of the body 32 and engage complementary portions at the free ends of an oil-resistant elastomeric semi-annular seal 28 supported in a groove in the block 10. The arms 38, 40 have tip portions 70, 80 which are disposed symmetrically to the axis of the arms and are provided with yieldable elongated protuberances 72, 76 which are flattened upon engagement with the block 10 and provide a seal against leakage of fluid radially. In a modification, the tip portions are disposed entirely on one side of the arm and the protuberances are L-shaped.
Patent GB-844483-A (GB)
Title: Improvements in spinning heads for melt spinning
IPC: D01D1/04
Filed: 1957-12-12
Abstract: <PICT:0844483/IV(a)/1> <PICT:0844483/IV(a)/2> <PICT:0844483/IV(a)/3> <PICT:0844483/IV(a)/4> The melt chamber of a spinning head for melt spinning contains one or more rigid bodies of a solid material chemically inert to the melt and having a melting point above that of the melt, the body or bodies being spaced from the inner surface of the melt chamber and located below the level to which the pool of melt rises in the chamber when spinning is in progress; the volume of melt in the melt chamber is thus reduced.  As shown in Figs. 1 and 3, a body 4 which is a solid of revolution is located in the centre of the funnelshaped melt chamber 2 and is surrounded by a toroidal body 41, both bodies being supported by the wall of the chamber and spaced therefrom and from one another by the projections 8. The filament-forming material is melted on the internally heated melting grid 1 and flows down into the melt chamber 2, whence it is pumped by the metering pump 3 to the spinnerets.  As shown in Fig. 4, two central bodies 4 which are solids of revolution are provided and are coaxially surrounded by two toroidal bodies 51 and 511.  As shown in Fig. 5, the body 6 which is a solid of revolution is hollow and is provided with ducts 7 and 7a for passing heating fluid from the grid 1 through the body.  The body 6 is surrounded by a toroidal body 41 as in Fig. 3. The invention decreases depolymerization of the filament forming polymer in the melt chamber.
Patent GB-1209686-A (GB)
Title: Improvements in or relating to vortical cleaner
Inventor: MULLER JIRI
IPC: D21D5/18
Filed: 1968-08-13
Abstract: 1,209,686. Centrifugal separator. PAPCEL STROJIRNY PRO PRUMYSL CELULOSY A PAPIRU NARODNI PODNIK. 13 Aug., 1968 [22 Sept., 1967], No. 38671/68. Heading B2P. A vortical cleaner for paper-making stock comprises a casing having a lower frustoconical part 1, an intermediate cylindrical part 2 and an upper frusto-conical part 3, a tangential inlet 4 for the stock to be cleaned, a rotor of which the hub 7 has in its bottom face 9 a recess 10 in the shape of a surface of revolution, a rejects removing chamber 16, and an accepts removing vertical tube 14 coaxial with the rotor and having its inlet opening 15 positioned under the bottom face 9 of the rotor hub. The hub peripheral surface may consist of two frusto-conical surfaces joined at their smaller bases, as shown, and a lower cylindrical surface 8. Instead of the double frustoconical shape, the upper hub portion may have a single paraboloidal surface. The recess 10 may be ring-shaped, as shown, or spherical. The upper part of each vane 11 of the rotor is of helical shape, the lead angle of the vane increasing downwards so that the vane at its lower part is substantially radial. Alternatively, the lower part of the vane may be oblique. The outer edges 12 of the vanes lies in a frustoconical surface 13, Fig. 2. The chamber 16 has a wash-water inlet 22 and communicates through a valve 18 with a collection chamber 19 provided with a valve 20 and a wash-water inlet 21. The shape of the rotor hub and of its vanes prevents the stream of whirling stock flowing upward to the face 5 of the upper part 3 of the cleaner and the recess 10 in the bottom face 9 of the hub prevents the upward vortexing clean stock from coming into contact with the downward vortexing impure stock and facilitates its discharge through the tube 14.
Patent GB-1317963-A (GB)
Title: Method and apparatus for reheating steel slabs in pusher furnaces
IPC: F27B9/40
Filed: 1970-08-12
Abstract: 1317963 Controlling reheating furnaces KONINKLIJKE NEDERLANDSCHE HOOGOVENS EN STAALFABRIEKEN NV 12 Aug 1970 [13 Aug 1969 19 Jan 1970] 38793/70 Heading F4B [Also in Division G3] A pusher furnace has flame zones I-IV and burners 1-5, extending transversely to the drawing plane. The control of furnace temperature takes place mainly in the first set of upper and lower flame zones. Slabs 6 to be reheated are pushed through the furnace on cooled sliderails 7.  The furnace is controlled by a computer (see Division G3), to which data relating to the desired rolled sheet and the desired rolling operation is fed on punched card or punched or magnetic tape. To optimize control the computer programme is modified to take into account the actual furnace temperatures and the actual pushing speed.
Patent GB-1375370-A (GB)
IPC: C09B43/04
Filed: 1971-10-04
Abstract: 1375370 Bis-(2,4-dihydroxybenzyl)amines PECHINEY UGINE KUHLMANN 4 Oct 1971 [5 Oct 1970] 38980/73 Divided out of 1375368 Heading C2C The invention comprises compounds of the formula wherein R 1 , R 2  and R 3  each represent a hydrogen atom or an alkyl or aryl group. They may be obtained by condensing in an aqueous medium 2 moles of resorcinol and 2 moles of an aldehyde or ketone with one mole of a hydrochloride of a primary amine or ammonium chloride. An example is given for the preparation of bis-(2,4-dihydroxybenzyl)amine.
Patent GB-1391600-A (GB)
Title: Quenching of coke
IPC: C10B39/04
Filed: 1971-08-19
Abstract: 1391600 Quenching coke BRITISH STEEL CORP 18 Aug 1972 [19 Aug 1971] 39043/71 Heading F4B Hot coke ejected from a coke oven is collected in a coke car and quenched with polluted water, previously used to wash the coke oven gas, the water being applied to the coke at a level below the surface of the coke. In the form shown the quenching water is supplied through pipes 3, projecting from the inclined floor of the car. Each pipe may be protected by a cover 5. Other delivery pipe arrangements are disclosed. In one a series of perforated pipes are provided on the floor of the car. The pipe system of the coke car may be adapted to be coupled up to a supply pipe for polluted quenching water at a quenching station. Alternatively the car may be flooded from below by being run into a pool of quenching water. Water may be sprayed over the coke to scrub the vapours being given off.
Patent GB-927280-A (GB)
Title: Process for the manufacture of modified cation active urea formaldehyde resins
Inventor: STRIEGLER ARNDT
IPC: C08G12/36
Filed: 1961-11-01
Abstract: Modified, cation-active urea-formaldehyde resins are produced by condensing urea (1 mole), formaldehyde (2-3 moles) and a 1-alkyl-4-ketohexahydro-1,3,5-triazine (0,1-0,5 mole) for about 1 hour at 60 DEG -75 DEG C. under neutral to weakly alkaline conditions, and then after condensing at a pH of 3,0 to 4,5 whilst cooling to 50 DEG -40 DEG C. until the desired viscosity is obtained, neutralizing the product and cooling to room temperature.  More urea may be added before or after the neutralization.
Patent GB-1236347-A (GB)
Title: Improvements in or relating to the carbonation of liquids
IPC: B67D1/04
Filed: 1969-08-05
Abstract: 1,236,347. Carbonating liquids. EATON YALE & TOWNE Inc. 5 Aug., 1969 [14 Oct., 1968], No. 39225/69. Heading B1C. In a carbonator 10 liquid under pressure is supplied through a check valve 13 and conduit 12 and gas through a conduit 22 directed past the dispensing outlet 51; the gas valve 24 remains open during dispensing so that the outflowing liquid is additionally carbonated. As the liquid level falls the float 38 descends until it actuates a limit switch to close the gas valve 24 and open a venting valve 19. The pressure water is then enabled to refill the carbonator and the rising float closes the vent and reopens the gas valve. The gas inlet conduit has a pressure regulator 26 to provide a constant maximum pressure in the carbonator and the vent may have a pressure regulator 60 to provide a maximum pressure above atmospheric but below that of the pressure water. A switch 34 prevents closing of the gas valve 24 and opening of the venting valve 19 during operation of the dispensing valve 30.
Patent GB-885864-A (GB)
Title: Improvements in or relating to control means for windscreen wiper motors
Inventor: ATKINSON ARTHUR THOMAS
IPC: B60S1/18
Filed: 1959-11-19
Abstract: 885,864. Windscreen wiper motor control means. LUCAS (INDUSTRIES) Ltd., JOSEPH. Oct. 21, 1960 [Nov. 19, 1959], No. 39248/59. Class 138 (1). A control means for a windscreen wiper electric motor comprises an oscillatable wiper blade actuating arm 10 mounted on a spindle 11 connected via a link (not shown) to a crank rotated by the wiper motor to actuate the wiper. The actuating arm 10 carries an electrical contact 12 which in normal operation of the windscreen wiper engages with an electrical contact 13 mounted on an arm 14 of insulated material pivotally mounted on the spindle 11. The contacts 12, 13 are in the supply circuit of the motor, and to stop the motor the arc of oscillation of the arm 10 is varied (as by altering the crank and link connection by reversing the motor) so that the contact 12 disengages from the contact 13. To vary the parking position of the wiper blade the position at which the contacts 12, 13 disengage may be varied by adjusting the position of the arm 14 relative to a fixed arm 17. This is done by adjusting a screw 16, comprising a helical wire wound on a flexible cable, threaded through a lug and nut 15 on the arm 14 and connected by a lug 18 to the arm 17.
Patent GB-884110-A (GB)
Title: Presensitized printing plate and method of preparing same
IPC: B41N3/03
Filed: 1959-11-19
Abstract: 884,110. Printing-surfaces. POLYCHROME CORPORATION. Nov. 19, 1959 [Dec. 29, 1958], No. 39297/59. Class 100(2) [Also in Group XX] A planographic printing plate comprises a metallic base, a hydrophilic coating thereon in the form of a continuous film, hard coating being provided by treatment with an aqueous solution of a zirconium hexahalide, and a light-sensitive diazo coating overlapping said hydrophilic coating. The base is pre-treated with an activating acid (phosphoric, oxalic, chromic, nitric or sulphuric acid), an alkali degreasing agent, an acid etching agent and to a desmutting operation, and hardened with nitric or tartaric acid, or is grained by abrasing or sandblasting. The base is then treated with a zirconium hexahalide solution, e.g. 0À3-1À0% potassium zirconium fluoride at 150‹ F. for 1-3 minutes, or calcium or ammonium zirconium fluoride, and with hot water. A light-sensitive layer is then applied, which may be albumen, aluminium bichromate, or a diazo resin, such as the condensation product of paraformaldehyde and paradiazophenylamine, and the sensitiser is 0À1 % diazo and 0À1% of a 10% solution of saponin. Hydroquinone may be applied as for anti-oxidant before the diazo treatment. Specifications 764,442, 764,443 and 856,993 are referred to.
Patent GB-344969-A (GB)
Title: Improvements in or relating to vacuum tubes
IPC: H01J21/02
Filed: 1929-12-24
Abstract: 344,969. Thermionic valves. ARCTURUS RADIO TUBE CO., 260, Sherman Avenue, Newark, New Jersey, U.S.A.- (Assignees of Ruben, S. ; 801, Riverside Drive, New York, U.S.A.) Dec. 24, 1929, No. 39446. Convention date, Jan 5. [Class 39 (i).] A valve has a cathode 2, an anode 3, a control grid 4, and an auxiliary grid 5 of much smaller size and capacity than the control grid, but mounted on the same plane and axis. The auxiliary grid may be onetenth the size of the control grid, and is preferably connected so as to prevent feedback oscillations.
Patent GB-864207-A (GB)
Title: Improvements in and relating to vending machines
Inventor: BRADLEY ALEXANDER BIRCH
IPC: G07F11/58
Filed: 1958-12-08
Abstract: 864,207. Coin-freed vending apparatus. GLOSTER AIRCRAFT CO Ltd. Dec. 7, 1959 [Dec. 8, 1958], No 39469/58. Class 27 An article dispensing machine comprises a number of endless conveyers 13 arranged side-by-side and carrying openended article containers 2 in staggerec relationship, the articles falling from the containers in succession as the conveyers are simultaneously indexed to bring a container on each conveyer ir turn over a discharge aperture 19 extending across and below the group of conveyers. The belt or chain members 13 are carried over sprockets 14, 15 or shafts 16, 17 and the sprockets are displaced relatively to each other on their shafts to give the staggered relationship of the containers. The lower shaft is rotatable by an external lever handle connected to a plate 46, Fig. 9, normally prevented from moving by a latch having a projection 58 extending into a coin aperture 60. A coin in the aperture depresses the projection 58 against the action of a spring 59 and the full movement of the released plate 46 is transmitted to drive pins 36, Fig. 7, on plates 34 carried by a shaft 33 which also carries a pawl 30 and is mounted in spring-loaded members 32. The pins 36 first move across apertures 37 in the members 32 and the pawl rotates so that a projection 38 releases a latch 30a from a ratchet wheel 29 on the shaft 16 and the pins then engage the ratchet to index the shaft. The projection 38 moves clear of the arm 39 of the latch 30a, the latch engages the next tooth of the ratchet and the spring-loaded members 32 return the parts to their rest position. In an alternative arrangement, Fig. 11, a handle 74 moves a bar 76 so that a stop 77 releases a latch 72 from a ratchet wheel 71 on the shaft 16 and the end 78 of the bar then engages one of several pegs 70 on the shaft to idex the shaft, the stop 77 clearing the latch so that it engages the next tooth of the ratchet. A full-stroke pawl and ratchet 80, 81 are provided. Two plungers 76 controlling distinct groups of conveyers and having interlocking mechanism may be provided and be controlled by a single slide 82 having a coin-released latch. Brake means may be provided on the shaft 16 to prevent it rotating due to a partially unloaded conveyer or the end 78 of the bar 76 may be shaped so that the pegs will not pass when the bar is in its extended position. Cool air from a refrigerator unit is circulated by a fan and the released articles are accessible through a door 5.
Patent GB-924244-A (GB)
Title: Improvements relating to the polymerisation of butadiene
IPC: C08F36/06
Filed: 1959-11-23
Abstract: Butadiene is polymerized in the presence of soluble catalysts prepared by contacting a compound of a metal of Group VIII with an alkyl metal compound and ageing the catalyst mixture in predetermined amounts in an inert hydrocarbon solvent at below 50 DEG C. for 5 minutes to 2 hours and mixing the aged catalyst with all the butadiene before the polymerization reaction is started. Specified catalyst components are diethyl aluminium chloride, cobaltous chloride-pyridine complexes, and cobalt diacetyl acetonate while benzene is the specified solvent.
Patent GB-1315068-A (GB)
Title: Tobacco smoke filter material
IPC: A24D3/12
Filed: 1971-08-24
Abstract: 1315068 Tobacco-smoke filters BRITISHAMERICAN TOBACCO CO Ltd 24 Aug 1971 [25 Sept 1970] 39689/71 Heading A2C [Also in Division C3] A tobacco smoke filter material comprises a particulate salt of a porous weakly basic anionic exchange resin, said salt being formed by the at least partial neutralisation of the basic resin by an acid having a pk a  value between 3.5 and 5.5. The porous anion exchange resin matrix of the weakly basic resin may be of the polystyrene, styrene divinylbenzene, phenolic, acrylic or aliphatic type and the weakly basic resin may be formed by combining a polyamine with the resin matrix. Suitable modifying amines are ethylenediamine, diethylenetriamine, triethylenetriamine, tetraethylenepentamine, propylenediamine and mphenylenediamine. The porous granular resin particles preferably have a surface area of 1-100 m<SP>2</SP>/gm, and the pore volume of the granules is preferably 0.2-0.5 ccs/gm. The average pore diameter is 0.01-1 micron. Particularly preferred porous weakly basic anionic exchange resins are amine-modified phenolformaldehyde resins. Preferred weak acids are aromatic carboxylic acids such as benzoic acid cinnamic acid, and anisic acid; aliphatic dicarboxylic acids such as succinic acid and glutaric acid; aliphatic monocarboxylic acids such as propionic acid, valeric acid, caproic acid, heptonoic acid, caprylic acid and perlargonic acid. Weak acids which have proyed to be especially efficient in removing volatile components from tobacco smoke are acetic acid and glutamic acid. A cigarette filter may be prepared by encasing the filter material in an outer wrapper. The resulting filter may be employed alone or in combination with a cellulose acetate filter.
Patent GB-1517100-A (GB)
Title: Synthetic resin containers
IPC: B32B27/00
Filed: 1976-12-03
Abstract: 1517100 Plastics bottles LONZA Ltd 3 Dec 1976 [9 Jan 1976] 39726/76 Heading B8D [Also in Division B5] A plastics vessel, e.g. a bottle, comprises an inner layer 2 made of a "fresh" synthetic resin material and an outer thicker layer 3 made from waste synthetic resin material derived from used plastics vessels. The inner and outer layers may be shaped together, e.g. by co-extrusion, deep-drawing, co-extrusion blowing, co-injection moulding processes and combinations thereof, or the inner layer applied subsequently. In one example used containers, which have been formed in an injection-blow mould from an externally injection-coated deep drawn preform, are ground up and the resultant granulate utilized to form the external coating on another deep-drawn preform to form a container according to the invention. In another example, used vessels initially deep-drawn from a twolayer laminate are ground up, and the granulate utilized to form the outer layer of a two-layer laminate from which vessels are deep-drawn. Polyvinyl chloride, polypropylene, polyesters, ABS, and other acrylonitrile copolymers may be used for the "fresh" and "waste" layers, specific examples and combinations being given.
Patent GB-1512519-A (GB)
Title: Electrical switches
IPC: H01H1/24
Filed: 1974-09-12
Abstract: 1512519 Retractive switches LUCAS ELECTRICAL Ltd 26 Aug 1975 [12 Sept 1974] 39741/74 Heading H1N An electrical switch includes a movable contact spring defined by a loop 21 connected to first and second limbs 22, 23 engageable with first and second fixed contacts 13, 14 upstanding from a base 12 and a rotor 17 for moving one of the limbs 22, 23 into or out of engagement with its associated contact 13, 14. In one embodiment, the rotor 17 is integral with a spigot 18 encircled by a hairpin spring having two limbs 22, 23 biased into engagement with the fixed contacts 13, 14. Upon clockwise or anticlockwise rotation of the rotor 17 by a lever (16) (Fig. 1, not shown), one of the limbs 22, 23 is moved out of engagement with its associated fixed contact by a portion 17alpha of the rotor 17. The switch may be used to control the brake lights of a vehicle, the lever (16) being associated with the brake pedal. In another embodiment, one of the limbs 22, 23 is movable by the rotor 17 into engagement with a third contact 25 to constitute a changeover switch. In a further embodiment, only one of the limbs 22, 23 is positioned between the fixed contacts 13, 14, to constitute a normally open switch, movement of the rotor 17 causing the other limb to move into engagement with its associated contact.
Patent GB-862025-A (GB)
Title: Improvements in or relating to subscribers' telephone sets
Inventor: WILSON FREDERICK ARTHUR
IPC: H04M1/76
Filed: 1957-12-23
Abstract: 862,025. Sub-station circuits. POSTMASTER GENERAL. Dec. 17, 1958 [Dec. 23, 1957], No. 39958/57. Class 40 (4). In a subscriber's sub-station two shunt-loss paths are provided, the first (that including R3) being connected across the transmitter and the second (that including R2) being connected across a winding 2A of the induction coil. The impedance of the loss paths varies inversely as the line current flowing in resistor R1 so that the sensitivity of the transmitter circuit is automatically varied in accordance with the resistance of the line. As shown the two loss paths form a balanced bridge circuit including pairs of similar rectifier elements arranged for push-pull working, the respective rectifiers of each pair forming two arms of the bridge circuit while the other two arms are formed by a centretapped non-linear resistor R1 connected in the line circuit for developing a voltage dependant upon the line current, which voltage biases the rectifiers in the conducting direction.
Patent GB-930556-A (GB)
Title: Improvements in or relating to electric time switches
Inventor: LEESON ARTHUR LEONARD
IPC: H01R31/06
Filed: 1960-11-22
Abstract: 930,556. Two-part couplings combined with switches. GILLONE ELECTRIC Ltd. Nov. 14, 1961 [Nov. 22, 1960; Feb. 23, 1961; June 5, 1961], Nos. 40062/60, 6651/61 and 20288/61. Class 38 (1). [Also in Group XXXVII] A time switch (see Group XXXVII) enclosed in a casing 10 is provided with sockets 4, 5 and 6 to receive plug terminals 1, 2 and 3 when the casing 10 is secured to a mains plug 11 by a single screw passing through hole 20 into a tapped boss 21. An appliance is connected by cable 18 to supply terminals 1 and 2, terminal 1 being connected directly to a plug pin 17 while terminal 2 is connected under control of the time switch to terminal 3 and hence to a plug pin via fuse 24. A manually operable switch 8, 9 can override the time switch when desired. In a second embodiment the plug 11 has a lateral extension carrying a standard mains socket in place of the cable 18 (Figs. 7, 8 and 9, not shown).