baber/WOPTO huggingface dataset:
Patent GB-1060688-A (GB)
Title: Fibre-reinforced bitumen sheet
IPC: E04D1/26
Filed: 1964-04-29
Abstract: A weather-resistant sheet comprises a matrix of bitumen reinforced with fibres of mineral material.  The bitumen is of a type catalytically oxidized and is in a condition in which a residual portion of the catalytic oxidation is still incomplete and dormant. In a preferred embodiment, streams of molten glass are attenuated into discontinuous fibres by blowers.  The stream of air-borne fibres is divided in two by a partition in the form of an inverted V and falls onto a foraminous conveyer which passes under the partition and so collects two superposed layers of fibres.  Glass strands are deposited upon the first of these layers as it passes under the partition; some of these are drawn by frictional adherence to the conveyor and so are laid in parallel lines, others are blown out at higher speed and so laid in a random loopy configuration.  The fibrous web is then impregnated with a binding agent, e.g. a phenolic binding agent. The web so made is then coated and impregnated with the bitumen, which may have a slate filler.  The web is cooled, zones of chopped strands are laid on the mat in the places where the nailing zones and edges of the final shingles will lie.  The web so made is then coated with further molten bitumen and a second mat of glass fibres applied to this coating.  This is followed by a further layer of bitumen and then by protective and decorative mineral granules.  The product is then cut into shingles.  The catalyst for the oxidation of the bitumen may be ferric chloride or phosphorus pentoxide.ALSO:A weather-resistant sheet comprises a matrix of bitumen reinforced with fibres of mineral material.  The bitumen is of a type catalytically oxidized and is in a condition in which a residual portion of the catalytic oxidation is still incomplete and dormant.  In a preferred embodiment, streams of molten glass are attenuated into discontinuous fibres by blowers.  The stream of air-borne fibres is divided in two by a partition in the form of an inverted V and falls onto a foraminous conveyor which passes under the partition and so collects two superposed layers of fibres.  Glass strands are deposited upon the first of these layers as it passes under the partition; some of these are drawn by frictional adherence to the conveyor and so are laid in parallel lines, others are blown out at higher speed and so laid in a random loopy configuration.  The fibrous web is then impregnated with a binding agent, e.g. a phenolic binding agent. The web so made is then coated and impregnated with the bitumen, which may have a slate filler.  The web is cooled, zones of chopped strands are laid on the mat in the places where the nailing zones and edges of the final shingles will lie.  The web so made is then coated with further molten bitumen and a second mat of glass fibres applied to this coating.  This is followed by a further layer of bitumen and then by protective and decorative mineral granules.  The product is then cut into shingles.  The catalyst for the oxidation of the bitumen may be ferric chloride or phosphorous pentoxide.
Patent GB-998781-A (GB)
Title: Time delay switching device
IPC: H01H19/18
Filed: 1962-05-09
Abstract: 998,781. Time switches. ALLMANNA SVENSKA ELEKTRISKA A.B. May 9, 1962 [May 12, 1961], No. 17788/62. Heading H2B. An adjustable time delay switching device comprises two rotatable discs 4, 5, spaced apart on a common support shaft 2 and each having a circular groove 12 and a tangential groove 13 running from groove 12 to the disc periphery, and an arm 14 attached to a second shaft 15 and supporting a roller 16 capable of moving into the two grooves 13 when they are momentarily opposite each other during rotation of the discs, the arm 14 then being turned together with shaft 15 to actuate a switch 20. Roller 16 upon entering grooves 13 is cammed into grooves 12 with clockwise rotation of the discs or out of grooves 13 with anti-clockwise rotation. A torsion spring 17 urges the roller 16 towards the middle of grooves 13. Discs 4, 5 are rotated at different speeds by gear-wheels 7, 8, one of the discs preferably rotating continuously and the other stepwise. The connection 6 between each of the discs and its associated gear-wheel consists of a spring- loaded peg engageable in any of ten spaced holes in the disc, thereby providing the timesetting adjustment.
Patent GB-400346-A (GB)
Title: Improvements in or relating to the separation of materials of different specific gravities
IPC: B03B5/38
Filed: 1932-06-24
Abstract: 400,346. Washing granular materials. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Chance, T.; Merion, Pennsylvania, U.S.A.) June 24, 1932, No. 17833. [Class 82 (ii).] In order to remove fine material from the circulating liquid in carrying out the sand flotation process, the mixture of sand, liquid and fine material which is removed from the flotation chamber with the washed product or with the refuse is first separated from the washed product or refuse and is then passed into a separating vessel in which the turbulence caused by the inflowing fluid keeps the sand and fine material in suspension and the flow is periodically substantially reduced or entirely stopped so that the suspended materials settle in the vessel and become stratified, the fine material being ejected from the body of the sand into the upper stratum, whereupon the upper stratum is removed from the separating vessel. Coal is passed from a shoot 1 over a vibrating screen 2 into a flotation chamber 3 containing a suspension of sand in water maintained homogeneous by mechanical or hydraulic agitation and having a refuse chamber 5 with control valves 4. The cleaned coal and the refuse, each mixed with fine coal, sand, and water pass over vibrating screens 7, 6 respectively, the fine coal, sand, and water passing through into a conduit 10 which opens near the bottom of a separating vessel 11. Water is sprayed on to the material on screens 6 and 7. A thick mixture of sand and water is withdrawn from the bottom of the vessel 11 by a pump 14 and returned to the flotation chamber 3, some of the finest coal passes out at the overflow 12 of the vessel 11, and the remainder of the fine coal remains in suspension in the vessel 11. Periodically the amount of liquid entering the vessel 11 by the conduit 10 is substantially reduced or entirely stopped by slowing down the pump 14 or by throttling, and also if desired by reducing the quantity of water sprayed on to the screens 6, 7, and the suspension in the vessel 11 is allowed to stratify. The sand sinks to the bottom and ejects the liquid and fine coal into the upper stratum where the fine coal settles and is withdrawn through a pipe 16. A valve 17 on the pipe 16 is then closed and the normal flow restored. A plurality of pipes 16 in the same or different horizontal planes may be employed and a number of flotation chambers and pumps may be used with a single separating vessel or a number of separating vessels may be used with a single flotation chamber. Any suitable mixture of fine solid and liquid may be used instead of sand and water in the flotation chamber. Specification 119,038, [Class 82 (ii), Washing granular &c.], is referred to.
Patent GB-757759-A (GB)
Title: Production of turbine or compressor blades
IPC: B21K3/04
Filed: 1954-06-17
Abstract: 757,759. Making turbine &c. blades; rolling. WURTTEMBERGISCHE METALLWARENFABRIK. June 17, 1954 [June 19, 1953], No. 17872/54. Classes 83 (2) and 83 (4). In a method of making turbine or compressor blades a blank 2, Fig. 2, to be rolled in successive stages is initially formed with one or more grooves 6 or beads by the first roll pair 3, 4 to act as guides to prevent the blank becoming displaced during the following rolling stages. The blank may be rolled between segmental rolls, the bead or groove being gradually reduced until it is finally removed in the last rolling stage. In a modification beads 16, Fig. 12, are formed along each-longitudinal edge and these remain during the final rolling stage after which the beads are removed. The blank is finally upset at one end to form the root and is then stamped in dies to the final cross-section and twist.
Patent GB-666012-A (GB)
Title: Improvements in or relating to harmonic generators
IPC: H04J1/06
Filed: 1949-07-06
Abstract: 666,012. Generating high-frequency oscillations. SOC. ANON DE TELECOMMUNICATIONS. July 6, 1949 [Nov. 19, 1948], No. 17904/49. Class 40 (v). A harmonic generator comprises a source of sinusoidal voltage at the fundamental frequency, anon-linear circuit fed from the source through an impedance of high value and comprising at least two branches including non-linear elements, means for biasing said elements, means for associating the currents in the branches in a predetermined phase relationship so as to produce electromotive forces of a preferred harmonic composition, and means for impressing the components on a working circuit. As shown, a voltage source S supplies a current through a high resistance R to a clipping circuit comprising rectifiers 1 and 2 biased by resistor-capacitor combinations 3, 5 and 4, 6, respectively. In the two branches of the circuit the even harmonics are in opposite phase and are selected at terminals 14, 16, by a transformer 8, 10, 12, having windings 8 and 10 in opposition, the odd harmonics being in the same phase and selected at terminals 13, 15, by a transformer 7, 9, 11, windings 7 and 9 being additive. Several transformers provided with tuned output circuits, Fig. 3 (not shown), or filters may be provided to select predetermined harmonics, or in a modification, Fig. 4 (not shown), a group of even harmonics, a group of odd harmonics, and a selected even harmonic are obtained, the odd harmonics being obtained in a circuit connected in parallel with the two branches which include rectifiers. The Specification as open to inspection under Sect. 91 comprises also an arrangement in which four biased rectifiers are arranged in a bridge circuit and connected through a high resistance to a source of sinusoidal voltage, the even harmonics being obtained from one diagonal and the odd harmonics from the other. This subject-matter does not appear in the Specification as accepted.
Patent GB-586187-A (GB)
Title: Improvements in and relating to organo-silicon compounds
IPC: C07F7/08
Filed: 1943-10-29
Abstract: Polysiloxane compounds are prepared by treating with concentrated sulphuric acid a mixture of an organo-disiloxane of the formula R3-Si-O-Si-R3 and either a silicone of the formula (R2SiO)x or an organo silanediol of the formula R2Si(OH)2, where R represents a lower alkyl, aryl, alkaryl or aralkyl radical and x is a whole number equal to at least three.  After the reaction the products are washed free from acid.  Starting materials mentioned include hexamethyldisiloxane, octaphenylcyclotetra - siloxane, diphenylsilanediol, and hexamethyl-cyclotrisiloxane.  In examples: (1) an equimolecular mixture of hexamethyldisiloxane and octamethylcyclotetrasiloxane is shaken with 10 per cent of its weight of concentrated sulphuric acid at room temperature for four hours, and the products separated, washed with water and fractionally distilled to give octamethyltrisiloxane, p  decamethyltetrasiloxane, dodeca - methylpentasiloxane and tetradecamethyl - hexasiloxane, and a resinous residue; (2) a mixture of hexamethyldisiloxane and diphenylsilanediol was treated as in example (1) to give 1 : 3-hexamethyl-2-diphenyltrisiloxane and a resinous residue; (3) the compounds used in example (1) are reacted in ether solution in varying proportions; (4) as in example (1) using slightly different reaction conditions.  The compounds of this invention are used for lubrication under oxidizing conditions and at very low temperatures. They are also useful as softeners and plasticizers for colourless or light-coloured resins. Specifications 542,655, 544,143, 548,911, 548,912, 551,649, 586,188 and 586,189 are referred to.
Patent GB-219710-A (GB)
Title: Egg-tester
IPC: G01N33/08
Filed: 1924-07-28
Abstract: 219,710. G÷pel, W. July 28, 1924. Eggs, testing.-An egg-tester comprises an electric pocketlamp, a receptacle 4 for the egg secured to the cover 3 of the casing 1 adjacent to the bulb 2, and a stand 5 provided with lugs 6 which engage the casing 1. The receptacle 4 preferably corresponds in shape in shape to one-half of a normal egg and consists of thin, pliable metal which is polished or nickel-plated to reflect the rays.
Patent GB-800125-A (GB)
Title: Improvements relating to electrical control systems
Inventor: DION WARREN EMILE
IPC: G05D3/14
Filed: 1956-06-11
Abstract: 800,125. Manual/auto electric control systems. BRISTOL, CO. June 11, 1956, No. 18011/56. Class 40 (1). In a control system in which the control motor is actuated by unbalance of a network, and in which the motor may be operated manually, undesirable effects may occur on changing from manual to auto if there is a displacement between the primary and the controlled members ; this is avoided by providing interruptible contacts in the motor circuit which are closed on completion of another connection which in turn is closed when balance is restored in the network. In Fig. 1 a displacement between the primary member 31 and the controlled member 12 produces a voltage which drives the galvanometer 38 to one side or the other, thus energizing relay 23 or 24 from the supply 45 and completing the circuit to one or other of the motor field windings 15, 16. Manual operation is effected by moving switch 51 to position 52 or 54 and thus operating relay 23 or 24 directly, in which case movement of 31 does not cause a shift of member 12. Relay 63 is connected directly to the supply 34 and its contacts are closed, thus energizing relay 62 from supply 57 via contacts of 61 (normally closed), resistor 65 and switch 51 in the auto position (53). The coil of relay 61 is thus shorted by the contacts of 62 and its contacts remain closed. On switching to manual this short-circuit is removed and if the network is unbalanced one or other of relays 23 and 24 will operate to energize relay 61 from supply 57 via the motor armature and one of the field windings, the latter having a much lower impedance than the relay coil. Operation of 61 opens its contacts, de-energizes 62 and isolates the auto position 53 of switch 51. If the switch is now returned to the auto position with the network unbalanced, i.e. if member 31 has been moved out of correspondence with 12, relay 62 will remain unenergized and the motor will not operate. By moving 31 to correspond with 12, relay 23 or 24 will be released, at least momentarily, and conditions will be restored to normal. Resistor 65 ensures that the contacts of 62 cannot close before those of 61 open. A further protection is provided by relay 63 which is released in the case of supply failure. On restoration of the supply the time-delay device 64 makes sure that the galvanometer 38 responds to the condition of the bridge network before relay 62 operates. In a modification (Fig. 2, not shown), the motor 11 is replaced by an electrically-controlled fluid-actuated motor, pneumatic or hydraulic. The link 13 may control, e.g., an aircraft throttle valve or control surface. The principle may also be applied to any electrically-operated low impedance device such as a reversing clutch, differential gear, ratchet or escapement. It may be applied to the system of Specification 747,555.
Patent GB-437539-A (GB)
Title: Improvements in or relating to signalling systems wherein the signals are formed by electrical impulses
IPC: H04M19/02
Filed: 1934-06-18
Abstract: 437,539. Electric signalling systems. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ., 12, Place des Etats- Unis, Montrouge, and BARTHELEMY, R., 14, Rue du Plateau, Fontenay-aux-Roses, both in Seine, France. June 18, 1934, No. 18033. [Class 40 (i)] [See also Group XL] Apparatus for controlling a pointer &c. in accordance with the number of impulses received comprises a gas discharge tube P which derives its anode voltage from a condenser C1 and to the grid of which the impulses are applied. Each impulse, irrespective of its amplitude, causes the condenser to discharge through the tube and in the intervals between impulses it is re-charged through the resistances R, r. The voltage drop in the latter causes current to flow in a shunt circuit including resistance f and rectifier V to charge a condenser C2 the voltage of which is thus a measure of the number of impulses. This voltage is applied to the grid of a valve L having a measuring instrument in its anode circuit. After each reading the condenser C2 is discharged manually. Alternatively the charging impulses may be used to control a step-by-step counter or a ballistic galvanometer. In a further modification signalling is effected by low frequency alternating current the frequency of which determines the order, and is indicated by a current measuring instrument in the anode circuit of the gas-discharge tube.
Patent GB-974632-A (GB)
Title: Improvements in or relating to dishwashing machines
IPC: A47L15/32
Filed: 1962-05-10
Abstract: 974,632. Dishwashing machines. F. W. BLANCHARD Inc. May 10, 1962 [Jan 22, 1962], No. 18067/62. Heading A4F. The lid 31 of a dishwashing machine has a downwardly extending marginal flange 37 which rests on a ledge 19 inside the machine, is spaced slightly from the machine, and has a series of circumferentially spaced apertures 39 approximately a quarter of the way up from the bottom of the flange 37, so that vapour can escape from the washing compartment. The underface of the lid may be provided with a layer 41 of acoustical insulation material. Specification 974,631 is referred to.
Patent GB-421597-A (GB)
Title: Improvements in or relating to storage means for rolls or the like of textile material
IPC: B29D30/38
Filed: 1933-06-24
Abstract: 421,597. Endless chain conveyers. DUNLOP RUBBER CO., Ltd.. 32, Osnaburgh Street, London, and WILLSHAW, H., Fort Dunlop, Birmingham. June 24, 1933, No. 18072. [Class 78 (i)] [See also Group VIII] Rolls of textile or other material, more particularly rubber-treated fabric for use in the manufacture of tyres, are rotated by power during storage. The rotation may be continuous, intermittent, in one only or both directions, or even only once during storage. As shown, the rolls 1 are moved in a closed path along rails 39, by means of chains 35 and a motor 37. This apparatus is shown enclosed in a box 41, fitted with a heating pipe 42 and a trip 43 for removing any selected roll 1.
Patent GB-530876-A (GB)
Title: Improvements in apparatus for melting readily oxidisable metals
IPC: F27B14/00
Filed: 1939-06-21
Abstract: 530,876. Melting-pots. TENNANT, W. J. (Dow Chemical Co.). June 21, 1939, No. 18102. [Class 82 (i)] A melting pot 5, particularly for readily oxidizable metals such as magnesium and its alloys, is provided with means for maintaining a protective gas over the ladling aperture comprising a double walled domed cover 6 in which the gas such as sulphur vapour may be generated so that it issues from holes 10 around the opening 8. A central hole 12 may also be provided. The cover 6 may be conical with its walls inclined at 20 - 40 degrees to the horizontal.
Patent GB-495490-A (GB)
Title: Improvements relating to the mounting of trays in storage racks
IPC: A47F5/00
Filed: 1937-06-30
Abstract: 495,490. Sliding shelves, trays, &c. THOMAS, B., and THOMAS, E. June 30, 1937, No. 18123. [Class 52 (i)] Sliding shelves, trays, &c. for use in openwork racks of the kind described in Specification 432,724 have detachable or retractable retaining means 16 located at the rear of the tray 12 adapted to limit the forward movement of the tray by engaging the front member 10 of the rack and accessible through the openwork rack for detachment or retraction to enable the tray to be removed completely from the rack when required. The tray slides on inclined bearers 11 and the retaining members 16 are of channel section embracing a flange 18 on the upper edge of the rear wall 19 of the tray to which they are secured by bolts 22, and have projecting horns 20 notched to engage the front uprights 10. In modifications the retaining member comprises a slidable bolt either horizontal or inclined, or a peg fitted in a socket on the rear wall of the tray. The tray may have a partition 15 of the kind described in Specification 318,271, [Class 18].
Patent GB-789281-A (GB)
Title: Improvements in or relating to bin dispensers
IPC: A47B81/00
Filed: 1956-06-12
Abstract: 789,281. Dispensing containers. KNOTT, J. F., and HESELOV, S. June 12, 1956, No. 18179/56. Class 18. A dispensing container for cylindrical objects comprises vertically spaced frames carrying elements forming a zig-zag track on which the objects are stored and down which they roll to a delivery point. The frames 10-12 may be moulded from transparent plastic and have integral track portions. They are held in spaced relation by distance piece tubes 23 through which pass securing bolts.
Patent GB-1159728-A (GB)
Title: Purification of Olefins and preparation of Sulphonates therefrom
Inventor: GARNER PHILIP JAMES
IPC: C07C7/171
Filed: 1966-04-26
Abstract: 1,159,728. Olefine sulphonates. UNILEVER Ltd. 17 April, 1967 [26 April, 1966], No. 18187/66. Heading C2C. [Also in Division C5] Olefin sulphonates are prepared from olefins (e.g. C 10-22 ) which have been purified by treatment with sulphuric acid under conditions such that olefin sulphation and isomerization do not take place, followed by phase separation and treatment of the olefin layer with an absorbent (see Division C5). Sulphonation may be effected using an SO 3 /air mixture in a falling film reactor, a stirred tank reactor, or by atomizing the olefin in the SO 3 /air stream. The sulphonated products may be bleached with an aqueous sodium hypochlorite solution. They are useful in detergent compositions.
Patent GB-316864-A (GB)
Title: Improvements in or relating to high pressure piston or reciprocating compressors or the like
IPC: F04B35/00
Filed: 1929-06-13
Abstract: 316,864. Sulzer FrÞres Soc. Anon- Aug. 3, 1928, [Convention date]. Actuating pumps by fluid-pressure motors; regulating compression.-The high pressure compressor pistons 16 are driven through oscillating columns A of liquid by a piston 4, these columns acting on intermediate pistons 9 exposed on their other sides to a liquid column C. The volume of liquid in the columns A is regulated by piston valves 25 which control connection of pipes 34 with any of several ports 31 - - 33 so that higher pressure liquid in the columns A is transferred to the column C, cushioning the end of the stroke. The pressure in column C is relieved through a valve 46. The liquid in columns A is replenished through inlets 20. Valves 65 in the pipes 34 regulate the cushioning effect. A bye-pass 58 connecting the columns A allows the pump to run idly when required.
Patent GB-1472951-A (GB)
Title: Sulphonates of n-hydroxy compounds
IPC: C07D257/04
Filed: 1974-04-25
Abstract: 1472951 Sulphonic esters of N-hydroxy benzotriazoles and dihydrobenzotriazines FUJISAWA PHARMACEUTICAL CO Ltd 25 April 1974 [28 April 1973 3 July 1973 (2)] 18232/74 Heading C2C  New sulphonic esters have the formula wherein R 1  is an alkyl, an alkenyl, an oxosubstituted bicycloalkyl, a substituted alkyl, a substituted alkenyl, a pyridyl a phenyl, or a phenyl substituted by an alkyl, alkenyl, halogen or nitro substituent and R 2 O- is a benzotriazolyloxy residue which may be substituted by a nitro, halogen or alkenyl substituent in the benzene nucleus or an oxo substituted dihydrobenzo-triazinyloxy residue. The compounds are made by reacting a sulphonic acid of formula or a reactive derivative thereof (e.g. a sulphonyl chloride) with a N-hydroxy compound of formula or a salt thereof.