baber/WOPTO huggingface dataset:
Patent GB-1277709-A (GB)
Title: N,n-bis-trifluoromethyltetrafluoroethylene diamine
Inventor: KLAUKE ERICH
IPC: A01N33/04
Filed: 1971-04-19
Abstract: 1277709 Fluoroamine FARBENFABRIKEN BAYER AG 19 April 1971 [20 March 1970] 23780/71 Heading C2C N,N<SP>1</SP> - bis - trifluoromethyl - tetrafluoroethylene diamine is prepared by reaction of tetrachloroethylene-1,2-bis-isocyanide dichloride with anhydrous hydrogen fluoride. The product is an insecticide.
Patent GB-534820-A (GB)
Title: Improvements in or relating to electron discharge tube oscillators
IPC: H03B5/22
Filed: 1939-08-18
Abstract: 534,820. Valve generating circuits MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and KEALL, O. E. Aug. 18, 1939, No. 23826. [Class 40 (v)] An oscillation generator comprises a single valve stage T with a filter circuit F connected between the grid and a tapping-point on the anode impedance Ro. The circuit oscillates at the frequency at which the filter gives 180 degrees phase displacement. The filter may comprise series condensers and shunt resistances as shown, series resistances and shunt condensers, Fig. 2 (not shown), series inductance coils and shunt resistances, Fig. 3 (not shown)), or series resistances and shunt inductance coils, Fig. 4 (not shown). Multiple filters selectable by a switch may be provided for giving different frequencies, or one or more of the elements may be variable for this purpose. Specification 395,596 is referred to.
Patent GB-500741-A (GB)
IPC: B24D99/00
Filed: 1937-09-01
Abstract: 500,741. Polishing moulded articles. THERMO-PLASTICS, Inc. Sept. 1, 1937, No. 23890. Convention date, Dec. 10, 1936. [Class 60] Articles formed from moulded material, for example, steering-wheels having thermoplastic material moulded over a core, are polished and the flash formed during moulding is removed by mounting the articles, shown as steering-wheels 1, on a tube 12, which is slid over a rod 11 so as to carry the wheels into a fabric sleeve 3 mounted inside a cylinder 2, the sleeve being pressed to engage the rims of the wheels 1 by compressed air. introduced by a pipe 10 into the space 6 between the cylinder 2 and the sleeve 3. The sleeve 3 may be formed of duck canvas or felt and is held in place by rings 5 engaging the turned back ends 4 of the sleeve. During the operation of polishing &c., the tube 12 is reciprocated to move the wheels over the surface of the sleeve, and the cylinder 2 also may be oscillated about its axis to prevent uneven wear. The inner surface of the wheel rims is treated by canvas &c. fingers 15 shaped to fit the space between the wheel spokes and carried by rods 17 secured to a plate 16, the fingers being inflated by pipes 25. In normal use, air escapes slowly through the canvas &c. and helps to cool the work ; when greater pressure on the work is required, the canvas may be impregnated with a rubber composition to prevent the escape of air.
Patent GB-481121-A (GB)
Title: Improvements in the separation of the oil from foreign matter in crude oil emulsions
IPC: C10G33/02
Filed: 1936-09-04
Abstract: In a process for separating water and solid impurities from petroleum emulsions by treating with a high tension alternating current, the emulsion is pre-heated and then passed between a multiplicity of electrodes the conducting parts of which are insulated from the <PICT:0481121/III/1> <PICT:0481121/III/2> emulsion by a solid and preferably thin dielectric, whereby the flow of conducted current through the emulsion is prevented.  A tank 1, Fig. 1, is provided with an inlet feed pipe 3, extending across the tank, and having a discharge slot 2 in front of which is mounted a hinged flap 4, whereby a uniform distribution of the emulsion is obtained.  The separated oil flows out through a pipe 7, and the separated water containing some oil through a pipe 9 to a mechanical separator (not shown).  Separated solids collect in a tapered part of the tank 1a and are drawn off through a valve 10. Any explosive vapour and air mixtures are drawn off through a vent 30.  The tank is provided with a cover 11 of insulating material in which is mounted a series of electrode units 12 in adjacent rows.  Each electrode unit, Fig. 5, consists of a thin glass walled vessel 12 of ,7 to 1 mm. thickness each provided with an inner metal coating 14, for example a mirrored metal coating, which is connected through a brush 27 to a conductor 21.  The upper edge of the insulator 21 is beaded and clamped between two rings 15, 16, of an elastic insulating material.  These electrode units are preferably disposed in three rows, the conductors 21 being attached to three bus-bars connected to a 3-phase current supply of 12,000 to 15,000 volts.  For an example, 10,000 kgs. of crude oil containing 40 per cent of water are passed through the tank with a field of 12,000 volts.  The oil is completely dehydrated with a consumption of 3 K.W.H. of energy.
Patent GB-1006677-A (GB)
Title: Supporting device for garden plants
IPC: A01G9/12
Filed: 1962-06-25
Abstract: 1,006,677. Plant supports. H. J. BARBER. June 6, 1963 [June 25, 1962], No. 24372/62. Heading AlE. A plant support comprises a stake 2 having spaced substantially parallel holes 3 into which are inserted the ends of a length of springy material 4. The holes 3 may be provided in a clip comprising a block of plastics material formed with two projecting flanges adapted to grip the stake.
Patent GB-469215-A (GB)
Title: Improvements in and relating to the manufacture of sulphuric acid
IPC: C01B17/84
Filed: 1936-09-07
Abstract: In the production of sulphuric acid by the chamber process while utilizing a concentrated solution of nitrosylsulphuric acid for spraying packed reaction chambers, towers or the like, the free spaces in the oxidation or acid-producing space and/or the Gay-lussac space are filled with acid resisting grains of two different grades, the grains of each grade being of approximately the same size, intimately mixed together so that the free spaces between the grains of the larger size are filled with the grains of the smaller size. The packing material may consist of two grades of quartzite (e.g. 30 mm. or 40 mm. and 10 mm.) intimately mixed together.  Preferably the oxygen content is reduced so that there is no more than 4 per cent of oxygen in the residual gas. The oxidation space may be irrigated with nitrosylsulphuric acid containing 70--75,5 per cent of sulphuric acid and having a temperature of above 50 DEG  C.  The process may be conducted in a system comprising a Glover tower, a packed oxidation chamber, an empty regeneration space and a packed Gay-lussac space. The regeneration space may be situated above the oxidation chamber or above or below the Gay-lussac chamber, and air or oxygen may be admitted to this space.  Specification 249,914, [Class 1 (ii)], is referred to.
Patent GB-1117383-A (GB)
Title: Improvements in or relating to curing agents for epoxy resins
IPC: C07D295/13
Filed: 1966-06-01
Abstract: As curing agents for epoxy resins, use is made of addition products of acrylamide with cycloaliphatic, aromatic or heterocyclic polyamines (see Division C2).  Specified polyamines are 1,4 - cyclohexyl - bis - methylamine or - bis - ethylamine, 1,4 - benzene - bis - methylamine or -bis-ethylamine, piperazine and amino-ethylpiperazine. A number of types of epoxy resins are specified.  The addition products enable epoxy resins to be partly cured and quenched, curing being completed when the mixture is heated again.  Examples are given.ALSO:Addition products are obtained by the treatment of acrylamide with a cycloaliphatic, aromatic or heterocyclic polyamine. Generally, the reaction involves the addition of two mols. of acrylamide to one mol. of polyamine with the consequent conversion of two of the amino groups of the polyamine into \s7 NCH2 CH2CONH2 groups.  The reaction may be effected by heating the reagents in a solvent. Specified polyamines are 1,4-cyclohexyl-bis-methylamine and - bis - ethylamine, 1,4 - benzene - bis - methylamine and - bis - ethyl-amine, piperazine and aminoethylpiperazine. Examples are given.  The products are useful as curing agents for epoxy resins (see Division C3).
Patent GB-1109854-A (GB)
Title: Improvements in printed circuits for use in the manufacture of electric switches having sliding contacts
IPC: H01H1/40
Filed: 1965-06-10
Abstract: 1,109,854. Switch contacts. SOCI•T• D'INSTRUMENTATION SCHLUMBERGER. 10 June, 1965 [10 June, 1964], No. 24657/65 Heading H1N. A printed circuit blank for forming sliding contacts of an electric switch, comprises a row of contact portions 1-17, Fig. 1, integral with a common collector 72 and separated by insulating regions 40-70 which penetrate to different extents as at contours I-IV within the common collector 72. The arrangement is such that the blank may be cut at any of the regions I-IV to form individual contacts or contact sets interconnected in groups. As illustrated in Fig. 2, a cut made at region III produces groups 78, 80, 82 of three interconnected contacts and single separating contacts 4, 8, 12. A hole 76 drilled at the base of contact 14 separates the contacts 13-15.
Patent GB-1133156-A (GB)
Title: A flexible article with sliding clasp fastener controlled opening
Inventor: PUGH CHARLES CYRIL
IPC: A44B19/24
Filed: 1966-06-03
Abstract: 1,133,156. Sliding clasp fasteners. LIGHTNING FASTENERS Ltd. 19 May, 1966 [3 June, 1966], No. 24860/66. Heading E2S. A flexible article having a .sliding clasp fastener controlled opening comprises at least three fastener lengths 5 for controlling the size of the opening, each length being provided with a slider 7 for locking and unlocking two series of fastener elements of its associated length, the fastener lengths being relatively disposed so that the sliders are movable towards and away from positions in which they lie adjacent one another to close or control the opening and in at least two fastener lengths, a single stringer length 6c extends from one. fastener length to the other to provide a stringer for each fastener length. The free ends of the stringers 6a, 6b may be provided with a sepanable end stop and in another arrangement, a single length of stringer is used to  form all the stringers of the fastener lengths.
Patent GB-388817-A (GB)
Title: Improvements in or relating to safety or emergency devices for use in connection with escalators and moving stairways
IPC: B66B29/00
Filed: 1931-09-04
Abstract: 388,817. Escalators ; preventing fires. PATTERSON, V. A., Monks Orchard, Oakfield Lane, Dartford, Kent, and HALL, Ltd., J. & E., 10, St. Swithin's Lane, London. Sept. 4, 1931, No. 24904. [Class 78 (i).] Means are provided for automatically stopping, or reversing the normal direction of travel of, one or more escalators upon the occurrence of an emergency, such as fire or failure of the lighting system. The coil LRW of a relay is connected across the lighting bus bars LBB of the building, and on becoming de-energized when the lighting system fails effects the closing of the contacts LR2, and the opening of the contacts LR1. The closing of the contacts LR2 causes the lighting of the signal lamp LL by the battery B. The opening of the contacts LR<1> breaks a circuit including the usual no-volt coil NV which effects the stopping of the escalator in the usual way. This circuit includes the usual emergency push buttons BPB, TPB provided at the bottom and top, respectively, of the escalator. An automatic device (not shown) for turning on water sprinklers in the event of fire is associated with a water relay WR, the contacts CWR of which are in series with the coil FRW of a relay and a manually-operable normally-closed test switch TS. When the coil FRW is energized, the nose of the latch M is depressed and releases the pivoted arm A which under the action of the spring S is moved to open the contacts T1 and close the contacts T2. This action results in the illumination of the signal lamp FL. The switch TS is provided in order that the routine fire installation tests may be carried out without stopping the escalator. When the automatic fire installation includes a water bell or turbine, the arm A may be held by a cam on the shaft of the water bell, and released on rotation of this shaft. The control system may be arranged to reverse the direction of motion of the escalator, or to control the opening or closing of fireproof doors, emergency exits, &c.
Patent GB-463866-A (GB)
Title: Improvements relating to the screening of electric cables or other electrical apparatus
IPC: H01B11/00
Filed: 1935-09-07
Abstract: 463,866. Screening cables and other electrical apparatus. ALLGEMEINE ELEKTRICITATS - GES., and RAHT, M. Sept. 7, 1935, No. 24983. [Class 36] An electric cable or apparatus is provided with a sheath or screen of electrolytic iron which material has a high permeability at low field-strengths and which is deformed during the process of forming it into the screen. The screen may be in the form of a spirally wound ribbon made in various ways. Thus, electrolytic iron made in known manner, e.g. in a Fischer bath may be rolled out into a ribbon with the. interposition of the necessary heating operation. Preferably, however, the iron is deposited in the form of removable sheets or ribbons of the required thickness. To avoid sticking of the deposit to the cathode either an intervening layer, e.g. of molybdenum oxide is employed or the cathode is made of V2A steel or chromium, or coated with the latter or a similar non-rusting material. Deposited sheets may be cut into strips and joined end-to-end by welding to form a ribbon. Preferably, the iron is deposited as an endless band on roller cathodes from which it is removed continuously, but the roller cathodes may be replaced by endless band carriers for the deposit in known manner. The after treatment of the iron, e.g. heating, and in some cases stretching, may be effected in known manner. Specification 343,179 is referred to.
Patent GB-296418-A (GB)
Title: Improvements in and relating to pencil making machines
IPC: B43K19/16
Filed: 1928-08-31
Abstract: 296,418. Daniel, C. E. Aug. 31, 1927, [Convention date]. Extrusion machines. - A stencil-making machine comprises an horizontal cylinder adapted to receive a slug of semi-plastic. composition and furnished with an end cap carrying an interchangeable. die, and means for guiding a lead, core through the die together with means for expressing the material through the die and about the lead core. As shown, a cylinder 5 is furnished with a cap 12 hinged thereto by lugs 10, 8 and adapted to be secured against the cylinder by bolts. The cap 12 is fitted with a die member 15 interchangeably supported in a shouldered press 13. The material is expressed from the cylinder by a piston 18 operated by a screw 19 driven through a gear 20, rotation of the piston being prevented by a swivel connection. Lead cores are fed through a tube 21 extending through the screw 19 into proximity to the die. The cores are supplied to the tube from a hopper 23' by rubber &c. covered rollers 27 driven at an appropriate speed. In operation, the cap 12 is opened and the cylinder charged with a perforated slug of wood-pulp composition. An appropriate die is inserted into the cap which is then closed and the plunger 18 and core feed 27 set into operation.
Patent GB-487457-A (GB)
Title: Improvements relating to electric remote transmission or repeating apparatus
IPC: G08C19/48
Filed: 1936-09-14
Abstract: 487,457. Electric signalling systems. ALLGEMEINE ELEKTRICITATS - GES. Sept. 14, 1936, No. 25084. Convention date, Sept. 13, 1935. [Class 40 (i)] In a repeating system, the repeaters comprise induction regulators, the rotor and stator of each repeater producing magnetic fields having the same frequency, one being rotary and the other alternating but stationary with respect to the part producing it, any phase shift between the fields due to a shift made at the transmitter causing the rotor to move until the phase difference is removed. The stators of the receivers 6, 7 are fed with three-phase current while each rotor carries a single phase winding supplied from the winding 8 of the rotor 3 which is rotated by the synchronous motor 9 in the magnetic field produced by the coils 1, 2 and movable by the worm gearing 22. Movement of the field alters the phase of the current in rotors 4, 5 causing them to move to restore the phase balance. The transmitter may consist of an induction regulator of similar construction and connected to the supply in the same manner as the repeaters, and the receivers may be provided with damping devices. When used to determine the direction of the earth's field, an amplifier may be used between rotors 3, 4. The Specification as open to inspection under Sect. 91 comprises also a system in which the rotors have multi-phase windings. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 339,664, [Class 40 (v)], and 357,222.
Patent GB-371740-A (GB)
Title: Improved aluminium alloys
IPC: C22C21/02
Filed: 1931-09-08
Abstract: 0,05-5 per cent of magnesium, with or without 0,5-5 per cent of copper, is added to the aluminium alloys set out in the parent Specification.
Patent GB-896867-A (GB)
Title: Method and apparatus for treating continuous lengths of material with gaseous compositions
IPC: D06B3/10
Filed: 1960-07-20
Abstract: <PICT:0896867/IV (c)/1> Continuous lengths of material are treated with an atmosphere comprising the vapour of a liquid reagent reactive with the material to form a reaction by-product lighter than the atmosphere by continuously introducing an aerosol dispersion of liquid particles of the reagent dispersed in a lighter carrier gas into a lower portion of a reaction chamber so as to produce an even flow across the bottom of the chamber, thereby forming a gaseous reactant mixture of gas, vapour and dispersed liquid particles which tend to remain in the bottom of the chamber, causing the reactant mixture to flow continuously upwardly and uniformly throughout the chamber by continuously introducing the aerosol, continuously passing the material through a reaction zone inside the chamber and above the low portion and continuously exhausting spent reactant mixture from the chamber.  Referring to the Figure, fabric 1 is fed continuously through the heating zone of chamber 2 while vapours of silane mixed with an inert gas carrier, e.g. air, are introduced into the lower portion of the chamber through inlet header 3 and spray nozzles 4. The spent gases are constantly removed through exhaust port 5. Specifications 572,740, 845,118 and 845,119 are referred to.
Patent GB-798049-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B19/04
Filed: 1956-08-20
Abstract: 798.049. Photographic roll-film cameras. DANGELMAIER, B.. [trading as DANGELMAIER & CO.]. Aug. 20, 1956 [Oct. 22, 1955], No. 25316/56. Class 98(1) In a photographic roll-film camera having a take-up spool rotatable by a handle or knob through a transmission gearing including a friction coupling, the coupling comprises a friction disc which is rotatable about an axis and which overlaps with and drivingly engages between a pair of friction discs rotatable about an axis parallel to but spaced from the first axis. As shown, the film winding knob 8 is on a shaft 5 having a return spring 7 carrying a spring plate 13 with a bent resilient end 14 engaging indentations in a gear 16 connected by gears 17, 22 to a film feed sprocket 2 so that the sprocket is rotated to wind on the film when the knob 8 is turned counterclockwise. The gear 17 is also connected through friction discs 24-27 with a take-up spool 1 rotatable on the drive shaft 5. For re-winding, the sprocket is disengaged from the gearing 16, 17 by axial movement of the shaft 6. A rod 11 carrying a rack 12 for rotating a pinion 31 to control a shutter-locking device (not shown) to prevent double exposure, has a recess 10 accommodating an eccentric 9 on the shaft 5 so that the rod is moved to set the shutter as the film is wound on. In another form, the discs 26, 27 are replaced by a single disc which engages between the discs 24, 25.
Patent GB-1099945-A (GB)
Title: Acrylate dimers and trimers
IPC: B01J31/02
Filed: 1965-06-16
Abstract: The invention comprises compounds of the formula <FORM:1099945/C2/1> which are trimers of acrylates of the formula CH2=CH.COOR where R represents a C1-C18 alkyl group and a process for making dimers and trimers of said acrylates or mixtures thereof wherein the acrylate is contacted at a temperature of from 0 DEG  to 100 DEG  C. with a catalyst of the formula (R1R2N)3P, wherein R1 and R2 are separate C1-C18 alkyl groups which may or may not contain an inert substituent, joined to the nitrogen atom at a primary carbon atom or R1 and R2 together with the nitrogen atom form a saturated cyclic amine group containing from 1 to 5 carbon atoms in the ring which may or may not contain one or more C1-C6 alkyl substituent groups, oxygen atoms and/or sulphur atoms.  Examples describe the production of a number of dimers and trimers such as diethyl a -methylene glutarate and diethyl 2-methylene-4-carbethoxy -pimelate.
Patent GB-714572-A (GB)
Title: Improvements in or relating to the pyrolysis or cracking of gaseous hydrocarbons
Inventor: EVANS EDGAR CHARLES
IPC: C07C4/02
Filed: 1949-10-04
Abstract: Unsaturated hydrocarbons, e.g. acetylene, are prepared by passing gaseous saturated hydrocarbons, such as methane, and substitution products thereof into an internal combustion engine together with oxygen in the substantial absence of any diluent or carrier gas, the saturated hydrocarbon being greatly in excess of the amount which would be completely burned by the oxygen so that partial combustion takes place which cracks the hydrocarbon to produce unsaturated hydrocarbons.  The process may be used for the production of acetylene from methane and small amounts of ethylene dibromide may be used to control the rate at which the process takes place.  An extractor pump may also be connected to the exhaust port to lower the cylinder compression pressure and the piston may be connected to a quick-return motion mechanism designed to produce a slow compression stroke and a rapid expansion stroke.  The combustion products may be cooled after leaving the cylinder by a quenching spray of water or a solvent such as acetone which dissolves the acetylene, the remaining exhaust products being either returned to the cylinder with the addition of hydrocarbon and oxygen or burnt in another internal-combustion engine or gas turbine.  The gaseous hydrocarbon and oxygen may be ignited by a preliminary charge of an easily ignitable fuel or by spark or compression ignition and the surfaces of the combustion chamber may be cooled by the process described in Specification 619,634, [Group XXVI].
Patent GB-247877-A (GB)
Title: An improved turntable for portable railways
IPC: B61J1/02
Filed: 1925-10-13
Abstract: 247,877. Mõder, O. Oct. 13, 1925. Turntables for portable railways comprise a rotary platform carried by a stationary base 1 to which are adjustably secured short rail lengths 9, 17, 21 for connecting with the converging tracks 8, 16, 19. The base 1 has rollers 2 and may carry one or both platforms 4, 5, the latter being hinged to a ramp 6 provided with rails 40, 41, Fig. 1, which are either duplicated or adjustable for change of gauge. In a modification, Fig. 6, the rails 42 are pressed from the ramp. The base 1 has a series of slots 7 for securing the rails, three methods being shown. The rails 9 are riveted or welded to clips 10 secured to slots 12 in a plate 13 having slots 15 for attaching to the base 1. In another form, the rails 17 are directly connected to a plate 18 adjustably attached to the base 1. In the third form, each rail 21 is secured to a separate clip 23 slotted at 27. For intersecting tracks, one long rail 19 is secured to a plate 32 having arcuate slots 33 for the converging rail 20, a short length rail being inserted in the outside rail 20.