baber/WOPTO huggingface dataset:
Patent GB-144701-A (GB)
Title: Improvements in and relating to electrical precipitation of solid materials from gases
Inventor: LILIENFELD JULIUS EDGAR
IPC: B03C3/01
Filed: 1920-06-10
Abstract: In the electrical separation of particles suspended in gases, the parasitic charges carried by freely moving nuclei, for instance nitrogen molecules, the formation of which lowers the p  efficiency of the precipitating process, are caused to deposit on sluggish particles in fine division and incorporated in the gas; these latter particles, which may be water, oil, &c., may be formed by condensation during the passage of the gas current, and may be either an addition to the gases or an original constituent. In the former case, the material may be added either in the liquid or vapour phases before the gases reach the dust-depositing chamber or in this chamber; and it may be introduced as a spray or may be taken up by the gases in their passage through evaporating-vessels or over moistened absorbent bodies.
Patent GB-398301-A (GB)
Title: Improvements in or relating to wheel brakes
IPC: F16D65/22
Filed: 1932-06-04
Abstract: 398,301. Brakes ; vehicle wheels. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, GOODYEAR, E. F. and WRIGHT, J., c/o Dunlop Rubber Co., Foleshill, Coventry. June 4, 1932, No. 15779. Addition to 379,529. [Classes 103 (i) and 144 (ii).] The brake described in the parent Specification is adapted as an internal hub brake for wheels of the type in which the tyre is mounted directly upon the hub. The tubular hub member 10 to which the tyre carrying flanges 9 are attached, the outer one by bolts 14, is carried by ball-bearings 7, 8, the outer one 7 being mounted on the reduced end of the axle 1 and the inner on a cylindrical support 15 having a flange bolted to a plate 18 attached to the frame of the vehicle. The inflatable annulus 16 for applying the brake shoes 24 to the hub member 10 is carried by the support 15. The brake shoes 24 are attached to plates 30 with inwardly bent extensions 29 having slots which receive the ends of springs 25 for disengaging the shoes. A felt washer is placed in the space 23 to prevent access of oil to the brake. To prevent the transfer of heat due to braking, to the tyre and tyre tube an air space is provided by forming the member 10 with circumferential grooves 11 upon the ridges of which rest ribs formed on a liner 20 of vulcanized fibre &c. for the tyre tube.
Patent GB-684867-A (GB)
Title: Improved mounting means for rolling bearings
IPC: F16C35/06
Filed: 1950-06-26
Abstract: 684,867. Securing race rings to shafts. SPIETH, R. June 26, 1950 [June 30, 1949], No. 15840/50. Class 80 (ii). [Also in Group XXXIV] In mounting means for a ball or roller bearing, the inner race 3 is secured on a shaft 4 by a clamping sleeve 1 having recesses 10, 12 forming link portions 14 which are subjected to a jamming action when the sleeve is axially expanded or compressed. The sleeve may be axially expanded by nuts 2 acting on the race 3. The clamping sleeve may be integral with the race ring. As shown in Fig. 8, portions 29, 30 may be axially compressed by rings 32 screwed into extensions of the bearing race 3. A double row bearing may be clamped on a shaft 4, Fig. 6, by a clamping sleeve 1 having an integral flange 18 at one end and a tightening nut 2 at the opposite end of the sleeve. A spacing member 20 is located between the inner races 3a, 3b. Various modifications of clamping sleeves are shown in Figs. 2 to 5.
Patent GB-158008-A (GB)
Title: Improvements in methods of, and means for, obtaining alternating currents of any periodicity from existing threephase systems of different periodicitiy
IPC: H02J3/04
Filed: 1919-06-25
Abstract: 158,008. Taylor, A. M. June 25, 1919. Addition to 151,294. Systems depending on the use of static transformers; systems depending on the use of two or more machines.-Three feeders of a threephase electric supply system are employed to transmit an additional three-phase current, the frequency of which differs from that of the main supply. In a modification, an additional two-phase current and a single-phase current are transmitted: and in a further modification, an additional two-phase current is transmitted. The additional currents are fed to the system through the neutral points of the main generators, or the neutral points of transformers or static balancers and means are providedto stabilize the neutral points of the transformers or balancers when these are employed. The external magnetic field is reduced by connecting the lead or copper sheathing, broken into short lengths, to resistances buried in cast-iron boxes, or the sections may be earthed at their middle points. The main generators MG, Fig. 1, are connected to a sub-station SS through transformers SUT, feeders 3 PC, and transformers 3 PIP. The neutral points of the secondary windings of the transformers SUT are connected to an auxiliary generator AG. The neutral points of primary windings of the transformers 3 PIP are connected and their secondary windings are connected in mesh to a circuit supplied with the additional three-phase current. To stabilize the neutral point of the transformer, an additional short-circuited deltawinding is employed, Fig. 1<a>; or an interconnected star-winding may be employed. In the modification shown in Fig. 6, a twophase alternator AA is connected to the neutral points of the transformers SUT of a three-phase system, and a Scott-connection is employed at the sub-station to convert this cur. rent to a three-phase current. In the modification shown in Fig. 8, a two-phase current from the alternator AA and a single-phase current from the alternator A is superposed upon the feeders of the three-phase system. The various transformer winding arrangements which may be em. ployed are shown in Fig. 9. Specification 8853/11. [Class 38 (ii), Electric currents, Converting &c.], is referred to.
Patent GB-1406409-A (GB)
Title: Headbox for a paper-making machine
IPC: D21F1/00
Filed: 1974-04-10
Abstract: 1406409 Paper-making apparatus ESCHER WYSS GmbH 10 April 1974 [24 April 19731 15952/74 Heading D2A  In a paper-making machine having a headbox 2 in which pivotal adjustment of the slice lip 10 can be effected by longitudinal movement of an adjusting rod 20 causing swinging motion of a plurality of connecting rods 40, pivotally attached to the rod 20 and to the lip 10, and thus causing pivoting of the lip 10 to vary the slice gap S, an indicator is provided to indicate the position of the lip. As shown a pointer 51 connected via a rod 50 to the end of rod 20 moves over a scale 60 attached to a fixed part 57 of the headbox, the scale 60 bearing a line 55 representing the rotation between the position of rod 20 and the slice gap S. The scale 60 and line 55 may be mounted on separate transparent plates 58, 54 to enable the zero position of the mechanism to be adjusted by a screw 61. Adjustable stop means 52, 53 may be provided to limit longitudinal movement of the rod 20 and thus to set the minimum size of the slice gap S. Alternatively the connecting rods 40 may be adjustable in length to achieve this. Longitudinal adjustment of the rod 20 is effected by rotation of a pin 25 in bearings A, R, the pin engaging an external thread 22 at the end of the rod.
Patent GB-1341049-A (GB)
Title: Synthetic resin moulded product having a moulded label  equivalent portion and method of manufacturing the same
IPC: B29C43/00
Filed: 1971-05-20
Abstract: 1341049 Moulding integral labels NIPPON VICTOR KK 20 May 1971 [25 May 1970 (2)] 15970/71 Heading B5A The label on a record disc, tape cassette or other synthetic resin article is formed by an equivalent pattern moulded into the surface during the moulding of the article and obtained by the juxtaposition of smooth and rough areas, the smooth areas having a mirror-like finish and the rough areas consisting of projections and depressions, e.g. a few microns, across which scatter the light to give a dull, whitish appearance. Either surface may form the letters or other pattern, the other surface forming the background. Records are made by preparing a mirror-surface base-plate and electroforming a fine grain layer on to it. This layer is separated and its surface is coated with a photo-resist layer which is exposed and developed to provide the desired pattern. The thus exposed areas of electroformed layer are then etched to produce a pattern having a grainy surface of projecting particles. This surface is then utilized to produce a die which impresses the pattern into the label zone of a lacquer master which may already carry the sound track. From this a metal master is made and used to form a "mother" for a stamping die, a pair of such dies being used to mould the record disc, e.g. of vinyl material, with label equivalent. In an alternative embodiment of the method the earlier steps are dispensed with by etching the label pattern directly on to a master having a mirror-finish centre portion.
Patent GB-159869-A (GB)
IPC: C01B7/01
Abstract: 159,869. Niccoli, E. March 2, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Hydrochloric acid.-In the combustion of hydrogen and chlorine to form hydrochloric acid, the furnace chamber, which may have a square or circular cross-section, is provided with a safety flame fed with an independent supply of hydrogen. Fig. 1 shows an elevation and Fig. 2 a cross-section. Hydrogen at a pressure varying from 5 to 20 mm. of water is supplied to the furnace 1 through the pipe 3, and is lit by the Bunsen flame 6; the necessary air being admitted through the pipe 11. Chlorine also at an adjustable pressure is then introduced through the pipe 2, and when the combustion proceeds normally, the air supply is stopped. The branches 8, 9 of the hydrogen and chlorine supply-pipes are made of quartz or other fireproof material and are arranged so that the hydrogen stream faces the chlorine stream to ensure intimate mixing of the gases. The furnace is closed by means of a very light cover 4 cemented to the walls with a thin layer of fireproof glazing-material, so that little resistance is offered in the event of an explosion. The hydrochloric acid produced is withdrawn through the quartz conduit 5.
Patent GB-1462463-A (GB)
Title: Magnetic structure for focusing of linear beams
IPC: H01J23/087
Filed: 1974-04-10
Abstract: 1462463 Transit-time tubes VARIAN ASSOCIATES 10 April 1974 [13 April 1973] 15989/74 Heading H1D In a linear beam tube, e.g. a klystron or travelling-wave tube, the beam is magnetically focused by a structure providing an axial magnetic field and having a pair of apertured, axially spaced, polepieces the first of which- 18, 57, 56-is provided, around its aperture 36, with an annular region 43 of reduced magnetic permeability, providing a controlled increase of magnetic flux leakage into the gun region, to move the point of magnetic field reversal back behind the cathode 25 and thereby permit substantial coincidence of the magnetic and the electrostatic field lines between the cathode and the anode 28. The polepiece at the collector end of the tube may be similarly constructed, to permit a more uniform expansion of the beam in the collector, and to prevent the beam acquiring excessive rotational energy therein. The region 43 may be of copper, to facilitate cooling of the anode 28. As shown, the gun is provided with a beam focus electrode 31 and a multi-apertured shadow grid 33 closely adjacent the cathode surface, both at cathode potential, and a multi-apertured control grid 32, the apertures of which register with those of the shadow grid, and with concavities which form a dimpled surface of the cathode. Each polepiece is energized by an annular, radially magnetized magnet 21, the two magnets being coupled by a cylindrical yoke member 23.
Patent GB-515356-A (GB)
Title: Improvements in or connected with cutter-chain machines for use in mining coal and other minerals
IPC: E21C35/20
Filed: 1938-05-30
Abstract: 515,356. Screw conveyers. MAVOR & COULSON, Ltd., and SPROUL, J. C, May 30. 1938, No. 16042. [Class 78 (i)] [Also in Group XXI] For driving a cuttings-conveyer in a machine for mining coal or other minerals, the crown wheel 13, from which the cutter chain B is driven, is also formed as a worm wheel 14 driving a worm 15 within an auxiliary gear box D. The worm shaft has at each end a dog &c. coupling from either of which the conveyer may be driven. In Fig. 3, a carrier F is reversibly clamped against the ends of the gear box D and is detachably secured to a longitudinallyarranged helical conveyer E comprising a shaft 24 driving through gears 25, 32, a ring 28 supported on ball bearings, or on four spaced rollers and welded to the helix 27. Specifications 329,837, [Class 78 (i)], and 512,443, [Group XXI], are referred to.
Patent GB-296833-A (GB)
Title: Improvements in composite cables for building up pneumatic tyre casings, driving belts and other articles
IPC: D07B1/06
Filed: 1927-06-17
Abstract: 296,833. Watson, J. June 17, 1927. Yarns and threads.- A composite thread used for reinforcing pneumatic tyres, hose pipes, driving belts, &c. is composed of wire and indiarubber, the wire being disposed in the form of a series of coarse-pitched continuous coils and the rubber associated therewith so that it is put into compression by the coils when the cord is subjected to tension. In one form, Fig. 4, the rubber A constitutes a core around which the wire B is wound, the coils of the wire being either spaced apart as shown or disposed close together. In another form, Fig. 6, the rubber D forms a casing for each of the wires B or strands forming the cord, the covered strands being laid with a coarse pitch.
Patent GB-120107-A (GB)
Title: Improvements in or relating to Clutches or Controlling Devices for Power Presses, and like Machines.
Inventor: RHODES CHARLES JOSEPH
IPC: F16D41/02
Filed: 1917-11-06
Abstract: 120,107. Rhodes, C. J., and Webb, T. H. Nov. 6, 1917. Clutches, ratchet.- In ratchet clutches for power presses &c. of the roller type put out of action by a stationa.ry abutment interposed into the path of a projection on the roller cage, the clutch is normally retained in engagement by adjustable springs i engaging segmental projections g, h on sleeves secured to the roller cage a and driven shaft f, respectively. The abutment l may be moved into the path of a lug k on the cage to disengage the clutch.
Patent GB-799448-A (GB)
Title: Microwave switch
IPC: H01P3/08
Filed: 1956-05-25
Abstract: 799,448. Microwave attenuators. STANDARD TELEPHONES & CABLES, Ltd. May 25, 1956 [May 26, 1955], No. 16251/56. Class 40 (8). A switch for a microwave transmission line of the line-above-ground type, e.g. having a line 2 spaced by dielectric 3 from a plane conductor 1, comprises a conductive element 6 adapted to bridge an interruption in the line 2 and to overlap each of the ends 4, 5 of the latter by a quarter of a wavelength or an integral odd number thereof, a dielectric material 8, e.g. mica, being interposed between the element 6 and the ends 4, 5 to form a choke at each of said ends when the switch is closed. The switch may be opened either by moving the element 6 by a rod 7 to the dotted position shown or by rotating it so that it does not overlap the ends 4, 5. In an alternative embodiment, in which coupling by higher order modes in the open position of the switch is prevented, the movable element is of U-shape and is rotatable to bridge the gap between two parallel ends of a line conductor. Specification 761,781 is referred to.
Patent GB-1126425-A (GB)
Title: Improvements in or relating to the production of grooved pulleys from sheet material by hydraulic pressing
IPC: F16H55/44
Filed: 1967-04-10
Abstract: 1,126,425. Making pulleys; stamping. ETS CL. JACQUEMARD. 10 April, 1967 [14 April, 1966], No. 16264/67. Headings B3A and B3Q. A method of making pulleys from sheet material comprises cold forging and extruding a solid hub 5 having external ribs 7, securing a ring 3 around a hole in the bottom of the blank 1 from which the pulley is to be formed, inserting the hub through the hole, the hole and the ring being fluted to receive the hub ribs, swaging the end of the hub within the blank to form a flange 8, pressing the blank to shape in a hydraulic press, in which the lower die half 17 floats on its ram 21 to prevent the die from being forced out of alignment. The ring 3 is initially spot welded to the blank 1 and the hole is punched through the blank and ring to cut flutes 4. When the hub 5 has been swaged to the blank it is drilled and reamed and a pilot 12 is inserted therein. The pilot is drilled axially and radially at 14, 15 and is fitted with a sealing ring 13. The blank is then filled with water and placed in a die set 20 of the die half 17. The upper die set 23 has a hole 24 co-axial with a ram 26 and as the ram 21 rises the blank 1 begins to deform as the pilot 12 enters the hole 24. Distortion of the finished pulley due to misalignment of the ram 21 is eliminated due to the convex lower surface of the die set 20 bearing on the ram and the play in the joint 21. In an alternative method the hub is drilled after the forming operation has been completed.
Patent GB-107330-A (GB)
Title: Improvements in or connected with Ships' Rudders.
Inventor: JANTZEN NIELS
IPC: B63H25/38
Filed: 1916-11-14
Abstract: 107,330. Jantzen, N. Nov. 14, 1916. Rudders; stopping way.-Rudder blades 12 of the shape shown are fitted at the stem and stern of a vessel and when placed at right-angles to its centre line act as brakes for stopping way. Each blade 12 is readily removable, the bottom being recessed to fit over a pivot stud 15 while the top is clutched to a vertically adjustable shaft 16. The rudders are operated from the drums 24, 30 respectively by the guided endless bands 20, 26.
Patent GB-704998-A (GB)
Title: Improvements in circuits comprising electric discharge tubes of the electron-beam type
IPC: H01J21/14
Filed: 1951-07-10
Abstract: 704,998. Electron-beam valves. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 10, 1951 [July 13, 1950], No. 16331/51. Class 39(1) To increase the mutual conductance of an electron beam valve, space-charge repulsion is used to enhance the effect of intensity modulation. At low current strengths the beam, from cathode 1, control grid 2, screen grid 3, retarding plates or cylinder 4, passes entirely through apertured plate 6 to fall on final anode 5. As current increases, the spacecharge in retarded region 4 causes the beam to expand so that part now strikes plate 6, which if desired is made secondary-electron emissive to give an increased output to collector 7. At a sufficiently high current substantially the whole beam falls on the disc collector 6. Specification 605,257 is referred to.
Patent GB-1017615-A (GB)
Title: Penicillins
IPC: C07D499/70
Filed: 1963-04-25
Abstract: Penicillanic acids of the general formula <FORM:1017615/C2/1> wherein R1 has the formula <FORM:1017615/C2/2> in which R5 is hydrogen, alkyl, alkanoyl, alkyl-sulphonyl, cycloalkyl, phenyl, chlorophenyl or phenethyl, and R2, R3 and R4 are selected from hydrogen, and halogen, nitro, alkyl, alkoxy, alkylthio, dialkylamino, alkanoylamino, alkanoyl, alkylsulphonyl, cycloalkyl, cycloalkoxy or substituted or unsubstituted aryl, aralkyl, aryloxy or aralkyloxy groups, and non-toxic salts thereof, are prepared by reacting 6-amino-penicillanic acid or a salt thereof with an acid having the general formula <FORM:1017615/C2/3> or functional equivalent thereof wherein X is -NH2, -N3, or -NHB, where B is a blocking group removable by hydrogenation, in a suitable solvent and, if X is not -NH2, hydrogenating in the presence of a catalyst to produce the desired penicillin.  Typical examples of the penicillanic acids of the above formula are D,L-6 - [a  - amino - (2 - thienyl)acetamido] -, 6 - [(-) - a  amino - (4 - pyridyl) - acetamido] - and D,L-6 - [a - amino (3 - pyrrolyl) acetamido] - penicillanic acid.  a -Azido (3-thienyl) acetyl chloride is prepared by reacting a -azido (3-thienyl) acetic acid with thionyl chloride.  a  - Amino - (4 - pyridyl) acetic acid hydrochloride is prepared by reacting HCl with a -amino - (4 - pyridyl) acetonitrile which is prepared by reacting 4-pyridylaldehyde, ammonium chloride and potassium cyanide.  a -Amino (3-pyridyl) acetic acid hydrochloride may be made similarly from 3-pyridylaldehyde.  a  - (N - Carbobenzoxyamino) - (3 - pyridyl) - acetic acid is prepared by reacting a -amino-(3-pyridyl) acetic acid with carbobenzoxy chloride.  a  - (N - Carbobenzoxyamino) - (2 - pyrrolyl) - acetic acid is prepared by reacting carbobenzoxy chloride with D,L-a -amino-(2-pyrrolyl)-acetic acid, which is prepared by refluxing in aqueous NaOH 5-(2-pyrrolyl)-hydantoin monoisopropanolate which is prepared by reacting sodium cyanide, ammonium carbonate and pyrrole-2-aldehyde and recrystallizing the product from isopropanol. (-) - a  - amino (2 - thienyl) acetic acid is obtained from the D,L-acid by forming the d-10-camphor sulphonic acid salt, suspending it in water, adjusting the pH to 6.3 with conc. NH4OH and cooling in an ice bath.
Patent GB-595035-A (GB)
Title: Improvements in the production of 1,3 butadiene
IPC: C07C1/24
Filed: 1945-06-27
Abstract: In a process for producing 1, 3 butadiene by catalytic dehydration in the vapour phase of a butylene glycol in the presence of a substantial quantity of 1, 3 butadiene (see Group IV) suitable catalysts are the primary and secondary phosphates of calcium and of other alkaline earth metals and the phosphates of nickel, copper, lead, diammonium and mercury, also potassium-aluminium sulphate and aluminium oxide and those described in Specification 15864/44 (as open to inspection under Sect. 91).  Carriers such as pumice, graphite or carbon may also be used.  In examples the catalyst is prepared by mixing mono-calcium-, mono-sodium- and ethylamine phosphates and phosphoric acid into a paste with water.  The paste is dried and fused at 200 DEG -300 DEG C., cooled to solidify and then broken up and screened.  The ethylamine phosphate may be replaced by butylamine-tributylamine-or ethylene diamine phosphate.ALSO:1,3-Butadiene is prepared by the catalytic dehydration in the vapour phase of a butylene glycol in the presence of a substantial quantity of 1,3-butadiene.  The reaction may be carried out at a temperature of 300-500 DEG  F. using 4 to 25 parts of diene per part by weight of glycol, which may be obtained by recycling part of the reaction products.  Suitable catalysts are the primary and secondary phosphates of calcium and of other alkaline earth metals, and the phosphates of nickel, copper, lead, diammonium and mercury also potassium-aluminium sulphate and alumina, and those described in Specification 15864/44 (as open to inspection under Sect. 91). Carriers such as pumice, graphite or carbon may also be used.  Steam may also be present in the reaction zone.  In examples: (1) butylene glycol, water and butadiene are passed over a catalyst comprising a paste of calcium-, sodium-, ethylamine-phosphates and phosphoric acid (see Group III); (2) the process is carried out by recycling part of the hot reaction products.  The ethylamine phosphate in the catalyst may be replaced by butylamine, tributylamine- or ethylene diamine phosphate.  Some butenol is stated to be formed in example (1) and may be returned to the process with fresh butylene glycol.
Patent GB-959548-A (GB)
Title: Apparatus for scattering powdered or granular solid material
IPC: A01C17/00
Filed: 1963-04-26
Abstract: 959,548. Powder distributers. A. P. LAURSEN A.S. April 26, 1963 [Sept. 11, 1962], No. 16429/63. Heading A1D. Apparatus for scattering powdered or granular materials comprises a trailer formed of two portions 1, 2, the portion 1 being fixed to a chassis and provided with a container 4 and a rotatable distributing disc 5 and the portion 2 being pivoted to the portion 1 and raisable by means of a hydraulic jack 13 to feed material to the disc 5.