baber/WOPTO huggingface dataset:
Patent GB-642326-A (GB)
Title: Magnetic control system
IPC: H01F29/10
Filed: 1947-08-13
Abstract: 642,326. Transformers and inductances; control systems for arc-welding; dynamoelectric machines. NATIONAL CYLINDER GAS CO. Aug. 13, 1947, No. 22538. Convention date, Aug. 17, 1946. [Classes 35, 38 (ii) and 38 (iv)] [Also in Group XXXVII] In a magnetic control system a control device for effecting varying pre-determined relations between juxtaposed surfaces comprises a pair of relatively rotatable members of which the juxtaposed surfaces are involutes of a common evolute so that upon relative rotation of the members the surfaces are at a uniform distance from each other depending upon the degree of rotation. A welding transformer 12 has a preferably laminated coremember 13 comprising legs 14, 15 carrying fixed primary and secondary windings 11, 18 and a third leg comprising polar projections 24, 25 and a rotatable member 29. The surfaces 26, 27 and 30, 31 are all involutes of an evoluted base cylinder 32 and the co-operating surfaces, i.e. 26, 30 or 27, 31, are parallel for any position of the member 29 if the axis of the member and the axis of the base cylinder are co-incident. The air-gaps are thus always of uniform length over the co-operating surfaces, but are adjustable by movement of the member 29, thus ensuring uniform flux distribution in the airgaps. Adjustment of the air gap varies the flux carried by the shunt path thus varying the flux linking the secondary winding and consequently the current in the weld. By the omission of the secondary winding and the core leg 15 a variable inductance may be constructed. In other embodiments are described transformers, which may have movable secondary windings. In still further embodiments are described dynamo-electric machines having a field shunt, which is similar to the shunt in Fig. 2, in order to vary the flux passing through the armature or alternatively the flux varying member may take the form shown in Fig. 8. In this Figure the surfaces C-D of the pole 103 and A-B of the member 123 are involutes of a common base cylinder 117. A similar arrangement exists for pole 104. Movement of the members 123, 124 varies the air gaps and hence the flux passing through the armature. The members 125, 126 may be either fixed or movable but movement thereof does not vary the air-gaps either between them and the armature or between them and the members 123, 124. Alternatively they may be dispensed with (Fig. 7, not shown). Specifications 480,295 and 586,503 are referred to. The Specification as open to inspection under Sect. 91 comprises also an electromagnet, Fig. 9 (Cancelled), in which the movable core member or rotor co-operates with core legs at right angles to each other, the rotor surface being either a single involute or a combination of an involute and a circular arc, the fixed surface being correspondingly shaped. This subject-matter does not appear in the Specification as accepted.
Patent GB-1182484-A (GB)
Title: Method for Manufacturing Aromatic Hydrocarbons
Inventor: TOKUHISA HIROSHI
IPC: C10G35/04
Filed: 1967-05-16
Abstract: 1,182,484. Reforming hydrocarbon oils. CHIYODA KAKO KENSETSU K.K. 16 May, 1967 [21 May, 1966; 4 Oct., 1966], No. 22583/67. Heading C5E. A process for the preparation of a substantially pure C n  monocyclic aromatic hydrocarbon, when n is an integer from 6 to 10, comprises the steps of (a) fractionally distilling a feedstock, as defined, and collecting the whole of the mixed hydrocarbon fraction distilling between a temperature T n-1  and a temperature T n , the temperature T n  being less than the boiling point of the monocyclic aromatic hydrocarbon containing n carbon atoms and greater than the boiling point of the monocyclic aromatic hydrocarbons containing n - 1 carbon atoms or, where n = 6, the whole of the fraction distilling up to a temperature below the boiling point of benzene being collected, and the temperature T n  being such that the fraction collected is substantially free from aliphatic hydrocarbons containing more than n carbon atoms, (b) subjecting the fraction to aromatization through dehydrogenation and dehydrocyclization under the conditions of normal catalytic reforming (as defined) to produce an aromatic-rich liquid hydrocarbon mixture, and (c) distilling the aromatic-rich liquid hydrocarbon mixture to obtain (A) the substantially pure C n  monocyclic aromatic hydrocarbon, and (B) when n=6, a substantially benzene-free hydrocarbon fraction containing hydrocarbons having no more than n carbon atoms, or (C) when n is equal to or greater than 7, (i) a C n  and C n-1  aromatic-hydrocarbon-free hydrocarbon fraction containing hydrocarbons having no more than n carbon atoms, and (ii) a C n-1  aromatic hydrocarbon fraction. The feedstock may be a petroleum naphtha, a liquid hydrocarbon mixture obtained by the Fischer-Tropsch process or Bergius process, a liquid hydrocarbon mixture obtained by dry distillation of shale oil, or a mixed liquid hydrocarbon fraction derived from the decomposition of any of these. "Normal catalytic reforming" means the employment of catalysts containing metals of Groups IV, V, VI, VII and VIII or oxides thereof, reaction temperatures of 400‹ to 600‹ C., reaction pressures of 1 to 100 atmospheres, liquid hourly space velocities of 0À1 to 10 volumes per volume per hour, and includes cases where the reaction is conducted with or without additional hydrogen. In the examples the catalyst used is platinum on alumina. In one embodiment a high octane gasoline is produced in addition to the pure hydrocarbon. In examples, depending upon the boiling range of the feedstock, benzene, toluene, xylenes and C 9 -hydrocarbons are produced.
Patent GB-1134020-A (GB)
Title: Apparatus for machining work-pieces by means of a rotary tool
IPC: B24B5/04
Filed: 1966-05-20
Abstract: 1,134,020. Grinding. " ECS " ENG. CONSTRUCTIONS SWITZERLAND G.m.b.H. 20 May, 1966 [20 May, 1965], No. 22647/66. Heading B3D. Apparatus for simultaneously machining two rotating workpieces 11, 12 by a machine tool having a rotating tool 13, such as a grinding wheel, comprises means for equalizing the distances of the axes of rotation of the workpieces from the axis of rotation of the tool. As shown in Fig. 4, the line connecting the axes of rotation of the workpieces is vertical and a wedge 14 is provided to adjust the support for the workpieces along a sloping base 10 so that a line (7, Fig. 1) from the axis of rotation of the tool and perpendicular to the line between the axes of rotation of the tool intersects the line at its centre. In another embodiment, each workpiece is carried by a separate support (17, 18, Fig. 5), the upper support being adjustable relative to the lower by wedges (16) and both supports being adjustable by wedges (15). In other embodiments, the support for the workpieces is adjustable about a pivot by movement of a wedge or cam. Where separate supports are provided, each may be adjusted by a servomotor or induction headed extensible bars under the control of measuring devices during the grinding process.
Patent GB-1128095-A (GB)
Title: Improvements in or relating to the production of isoprene
IPC: C07C409/04
Filed: 1966-05-20
Abstract: 1,128,095. Conversion of methylpentenes to isoprene. HALCON INTERNATIONAL Inc. 20 May, 1966 [25 May, 1965], No. 22661/66. Heading C2C. [Also in Division C5] In a process scheme for yielding isoprene starting from 2-methyl-2-hydroperoxypentane and/or 3-methyl-3-hydroperoxypentane (see Division C5), the first stage involves reacting the hydroperoxide with a second reactant (e.g. an olefin, an amine or an unsaturated aldehyde) under conditions such that the second reactant is oxidized while the hydroperoxide is converted to 2 - methyl - 2 - pentanol and/or 3 - methyl-3- pentanol. Numerous second reactants are specified, as also are suitable reaction conditions and catalysts for each type of reactant, the following reactions occurring in specific examples (one product being the above-mentioned alcohol mixture in each case):- (1) Propylene --> propylene oxide, using molybdenum naphthenate as catalyst. (2) Cyclohexylamine --> cyclohexanone oxime, using tetra-n-butyl-titanate as catalyst. (3) Methacrolein --> methacrylic acid, using chromic oxide as catalysts. The hydroperoxide starting materials (a mixture of the two) are obtained by air oxidation of a mixture of 2- and 3-methyl-pentenes in the presence of di-t-butyl-peroxide.
Patent GB-804667-A (GB)
Title: Improvements relating to fabric reinforced hollow articles and pipe joints
IPC: B29C70/22
Filed: 1955-08-08
Abstract: 804,667. Fabric reinforced hollow articles and pipe joints. WAUGH, R. E., and YUREK, G. J. Aug. 8, 1955 [June 17, 1955], No. 22759/55. Classes 99(1) and 99(2). [Also in Groups VIII and XV] A tube is reinforced by applying a woven or knitted seamless fabric sleeve, coating the sleeve with synthetic resin and curing the resin. For additional strength further sleeves may be applied over the first sleeve in the same manner. The sleeve may be of fibre glass fabric and may be stretched over a plastic tube of greater diameter. The resin is applied by dipping, painting or spraying. The sleeve may be used to join two pipes of the same or different diameters placed end to end. A pipe elbow bend may be made by placing together two pipe sections having their ends cut to meet on a diagonal plane, applying a sleeve made as or stretched to the shape of an elbow, spraying with plastic and curing. Fig. 4 shows a T-piece made by pipes 30, 32, joined by a sleeve 38, 40 ; the part 38 may be slit to enable it to be applied to a long pipe and joined again by sewing. To form a return bend, a tube 50, Fig. 6, made of thin plastic, stiff paper or semi-hard rubber is formed with slots 52 so that when it is bent to U-shape and its ends are fitted on to parallel pipes 56, 58 the parts between the slots form supports for a sleeve 60 which, after spraying and curing, forms a rigid joint. Fig. 7 shows pipes 68, 70, 72 joined by a sleeve 62 cut at 64 to receive a sleeve 66, the two sleeves being sewn together. A sleeve as above may be used to reinforce plastic, glass or thin metal tubes, or articles such as tanks, retorts or kettles or other vessels. The synthetic resins may be polyester resins, epoxy resins, and other condensation types of thermosetting resins.
Patent GB-755299-A (GB)
Title: Improved means for driving record strips in recording apparatus
IPC: B41L5/06
Filed: 1954-08-05
Abstract: 755,299. Winding webs. LANDIS & GYR AKT.-GES. Aug. 5, 1954 [Aug. 6, 1953], No. 22797/54. Class 100 (1). [Also in Group XIX] A device for driving a record strip 19 com prises an axle 2 for carrying a supply rol 5 of record strip, drive means for the strip and an axle 8 carrying a spool 10 for winding up the strip as it is unwound from the rol 5, the axles 2, 8 being urged towards one another to maintain frictional driving con tact between the peri pheries of the rolls or the axle 2 and spool 10. The axle 8 is carried by a pivoted lever 7 and urged by a spring 17 towards the axle 2 which has a flange 3 with a cut-out portion 11 to accommodate one of the end flanges 9 of the spool 10 to allow contact between the rolls. To prevent the winding-up roll loosening the layers of the supply roll, their borders may be connected, e.g. by a thin layer of hard wax or paste. If recording is by perforation a stamping device 18 is placed after a toothed driving wheel 13 which feeds the strip through the device 18. The take-up and supply rolls may be interchanged and the direction of rotation of the wheel 13 reversed.
Patent GB-441563-A (GB)
Title: Improvements relating to steam superheaters in furnace flue boilers
IPC: F22G7/06
Filed: 1934-08-07
Abstract: 441,563. Steam superheaters. SUGDEN, Ltd., T., and HALL, A:, 180, Fleet Street, London. Aug. 7, 1934, No. 22856. [Class 123 (iii)] [See also Group XII] The gases from a flue 2 of a Lancashire, return-tube, or other furnace - flue boiler are deflected against a selected part of a superheater 3 in the downtake or combustion chamber by an adjustable inclined plate 8 in the end of the flue. The plate may have a hinged part 12 which is moved by a set screw or by a crankarm 21 operated by a rod with a handle 22 outside the boiler setting. The plate may be moved along the flue, and it may be set with a transverse inclination to deflect the gases sideways.
Patent GB-690638-A (GB)
Title: Improvements in or relating to typographical slug casting machines
IPC: B41B11/38
Filed: 1950-09-19
Abstract: 690,638. Type-bar-making machines. MERGENTHALER LINOTYPE CO. Sept. 19, 1950 [Sept. 20, 1949], No. 22961/50. Class 100(iii) Clamping matrices.-In a machine of the general construction of that disclosed in Specification 540,553, means is provided for locking the vertical rod 11, Fig. 1, to hold the jaw or jaws in linecontacting position, and for applying pressure to cause the line to be squeezed before casting, the rod 11 being provided with rack teeth 42, Figs. 1 and 8, adapted to be engaged by rack teeth on four detents 40 in a housing 43. By rotating a screw 45, the detents are moved towards the rod. The teeth on each detent are staggered with respect to those on the others, so that in any position of the rod, one detent moves into full engagement with the rod, the detents being slightly depressed if necessary by the bevelled teeth to ensure complete engagement. The remaining detents yield against springs 41c. The screw 45 is rotated to locking position when the metal pot swings into casting position, by means of a spring-pressed plunger 59, Fig. 3, mounted on the pot, through arms 55, 52, link 51 and lever 50, an over-centre spring 62 holding the parts in either position. The locking mechanism can only be operated by the plunger 59 when a roller 57 on an arm 58 is aligned with the plunger, when the machine is set for quadding or centring. After locking, a link 93 actuated by a cam causes the rod 11 to be moved downwards to squeeze the line, by means of slide 90, lip 94, cam arm 95, and lever 96 pivoted to the housing 43. The lever 96 has a lug which passes through the housing and depresses the detents. After casting a spring 100 draws slide 90 forwards to allow arm 95 to rock back as the detents 40 rise to release the pressure. The locking mechanism is released by a finger 75 on a lever 71 pivoted to the elevator 72, which finger engages a plate 70 on the lever 50 as the elevator moves to lift the line from between the jaws for distribution. A handle 19 is provided to control the grooved collar 18 for quadding or centring, and a second handle 21 to disconnect the rod 11 from both jaws for regular machine operation, and to move the roller 57 out of alignment with the plunger. Justifying-apparatus.-The justifying rods 28, 29, Fig. 1, are locked, when the machine is set for quadding or centring, by locks 101, 102 on levers 104, 106, controlled by the handle 21. Distributing-apparatus.-The first elevator 72, Fig. 1, during the first part of its movement to lift the composed line, acts by means of a finger 75 on a plate 71 pivoted to the elevator, to release the jaw-locking mechanism. Metal pots.-Clamped at 61 to one of the supporting legs 8 of the pot is a bracket 60 carrying a spring-pressed plunger 59. When the pot swings to casting position, the plunger 59 moves the jawlocking mechanism to locking position, if the machine is conditioned for quadding or centring. Specifications 433,872 and 482,047 also are referred to.
Patent GB-1316871-A (GB)
Title: Tuning system for selecting channels
IPC: H03J5/02
Filed: 1970-05-12
Abstract: 1316871 D/A converting MATSHUSHITA ELECTRIC INDUSTRIAL CO Ltd 12 May 1970 [20 May 1969 (3)] 23022/70 Heading G4H [Also in Division H3] A tuning system for selecting channels has bi-stable flip-flops 36 1 -36 14  forming a ring counter and variable capacitance diodes 17-20 and 32-34 to effect tuning to predetermined frequencies, only one of the bi-stable flip-flops assumes the state of "1" and the "1" state flipflop is successively shifted as successive shift pulses from a shift pulse generator 37 are fed to the ring counter so that a load circuit 39, 40, 42 associated with the flip-flop in the "1" state provides a predetermined voltage for reverse biasing the variable capacitance diodes. The T.V. receiver shown includes a VHF tuner 25 with HF amplifier 14, mixer 15 and local oscillator 16 and a UHF tuner 29 with a HF amplifier 30 and a self oscillating mixer 31. Tuning is effected by closing switch 38 so as to apply pulses from a pulse generator 37 to the flip-flop stages 36 1 -36 14  of the ring counter until the required channel has been selected. The flipflop in the "1" state such as 36 1  then closes its switch circuit 39 1  to turn on a diode 42 1  and pass a voltage from the variable resistor 40 1  to the variable capacity diodes 17-20 of the VHF tuner 25. Also switch 44 1  is closed to indicate the channel selected by a pilot lamp 45 1  or numerical indicator tube. High or low VHF bands are selected by turning on or off switching diodes 21-24 controlled from OR circuit 46 via switch circuit 47. The flip-flops 36 1 -36 7  for VHF tuning provide outputs for OR circuit 48 to connect the power supply by means of switch circuit 49 to the VHF tuner 25 whereas the outputs from the flip-flops 36 8 -36 14  for UHF tuning are connected via OR circuit 50 to operate switch circuit 51 so as to connect the power supply to the UHF tuner 29. A reset pulse terminal 43 is provided in a modification (Fig. 3, not shown), gates (54) are used instead of the diodes 42. The preset resistors 40 can be formed by base diffusion in a semi-conductor integrated circuit and the system may be an integrated circuit. The selection of channels may be remote controlled by transmitting signals to actuate the switch 38 for the pulse generator 37 and the switch may be an electronic circuit. Reference has been directed by the Comptroller to Specification 1,208,849.
Patent GB-1109246-A (GB)
Title: Method of making polyurethane and said product
IPC: C08G18/75
Filed: 1966-05-24
Abstract: A spreadable mixture which gives a polyurethane having improved resistance to discoloration comprises: (1) a reactive hydrogen containing material having a M.W. 500-6000 selected from polyester polyols, polyether polyols, polyether-polyester polyol, polyester-amide, castor oil, polycarbonate polyol, polydiene polyol and hydrogenated polydiene polyol; (2) an organic polyisocyanate in which all the NCO groups are attached to non-benzenoid carbon atoms; (3) a non-aromatic primary diamine; and (4) sufficient solvent to render the mixture spreadable.  The polyisocyanate and the diamine are so selected that when reacted in boiling methylene chloride at 0.2 to 0.5 molar concentration, turbidity occurs in less than 30 seconds.  (1) and (2) may be allowed to react to form a prepolymer before adding the diamine (3).  The solvent (4) may be acetone or methyl ethyl ketone which may be heated with the diamine before adding to (1) and (2).  From 1.3 to 3.0 moles of polyisocyanate may be used for each mol. of reactive hydrogen containing material; from 0.7 to 1.0 moles of diamine may be used for each mole of free isocyanate. The mixture may also contain from 5 to 100 parts by wt. per 100 parts of reaction mixture of a pigment.  The mixtures may be used in the preparation of film and other shaped objects, e.g. filaments.  The products of the examples were tested in a weatherometer in accordance with ASTM-E42-57 and ASTMD-1499-59T. Examples of suitable isocyanates are: 4,41 - diisocyanatodicyclohexyl methane, m-xylylene diisocyanate, hexamethylene diisocyanate and methylene bis-4,41-cyclohexyl isocyanate. Suitable diamines include: 1,4-cyclohexane-bis-(methylamine), trans-cyclobutane-1,2 - bis - (methylamine) and 1,6 - hexylene diamine.
Patent GB-301130-A (GB)
Title: Improvements in the recovery of oils of high boiling point from the residues of mineral oils, tar oils, and the like
IPC: C10G7/00
Filed: 1927-09-05
Abstract: 301,130. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 5, 1927. Hydrocarbons, distilling; hydrogenation, destructive.-Oils are recovered from the residues remaining after the distillation, destructive hydrogenation or similar treatment of carbonaceous materials, by introducing into the residues at over 300‹ C. and under diminished pressure gases or vapours containing liquids of low boiling point in the liquid state, e.g. water, benzene, toluene, alcohol, &c. The liquids are preferably injected in the state of mist, e.g. damp steam, the mist being obtained by cooling the hot vapours until partial condensation takes place. The vapours are preferably introduced into the treatment vessel transversely to the layer of material to be distilled. A distillation residue of the destructive hydrogenation of lignite is distilled between 370‹ and 395‹ C. and 80 millimetres pressure with steam which prior to its admission to the still is cooled so that most of the steam is condensed to water in the form of mist. The residues are treated while flowing in a shallow layer about 3 cms. deep through a wide pipe in which steam jets are arranged transversely to the direction of flow of the residues. Specification 213,267 is referred to.
Patent GB-211523-A (GB)
Title: Improvements in or relating to detonators for shot firing or the like
IPC: F42B39/30
Filed: 1922-08-28
Abstract: 211,523. Price, A., Pryse, W., and Price, Pryse, & Co., Ltd. Aug. 28. 1922. Blasting detonators.-The sides of a detonator shield, of the kind described in Specifications 29406/10 and 169,804 are made with strips c more or less longitudinally disposed and bounded by slits b from which no material is removed, so that the edges of adjacent strips remain in contact with each other. The forward end e is closed by bending in a number of triangular projections. Near the other end, there are windows k, and tongues m formed by slits l, and this end is closed by means of a pair of short projections i between a pair of longer projections f, which are perforated to form a hole h<1> for the passage of the fuse.