baber/WOPTO huggingface dataset:
Patent GB-1518346-A (GB)
Title: Extruder for thermoplastic material
IPC: B29C48/67
Filed: 1975-08-21
Abstract: 1518346 Mixing screw BELOIT CORP 21 Aug 1975 [26 Aug 1974] 34753/75 Heading BIC [Also in Division B5] A screw 13 for delivering thermoplastic material under pressure has a plurality of encircling barrier rings 18, 19, 20 each ring having a plurality of sections 21, 22, 23 of reduced height to permit passage past the ring of particles only of predetermined size, the reduced height portions being graduated progressively in the downstream direction to pass only particles of progressively reduced size. As shown the rings are of undulant form and the reduced height portions are in those parts of the ring which tend to convey in the reverse direction to the general flow. Preferably the rings are staggered so that their upstream apices are opposite to the reduced height portions of the preceeding ring. In an extruder for injection moulding, the mixing section forms the terminal portion of the screw, see Fig. 1 (not shown).
Patent GB-418941-A (GB)
Title: Process for the improvement of motor fuels having a tendency to the formation of pitchy residues
IPC: C10L1/06
Filed: 1933-12-11
Abstract: The tendency of motor fuels, particularly motor benzol, to form pitchy residues in the motor is removed or diminished by the addition of a hydrocarbon of the boiling point range of benzine, that is between 30 and 220 DEG C., which has been subjected in the presence of catalysts to a refining operation with hydrogen, or gases containing hydrogen, under such conditions that little or no splitting of the linkages takes place.  Among the materials which may be subjected to the refining operation are crude benzol or distillation products thereof, or benzines obtained by cracking or destructively hydrogenating natural or artificial oils &c. Alternatively, hydrocarbons produced by the processes of Specifications 258,576, 300,900, and 327,463, [all in Class 91], may be employed as the material to be added.  The refining operation is effected preferably in the vapour phase at pressures varying from 20 to 250 atmospheres and at temperatures above 180 DEG  C. and below 500 DEG  C.; the gas may be hydrogen, hydrogen and nitrogen, water gas, hydrogen mixed with carbon dioxide, hydrogen sulphide, water vapour or methane.  The catalysts may be compounds, e.g. oxides, hydroxides or sulphides, of metals of the sixth group, or tin, vanadium, rhenium, manganese, zinc, cadmium, aluminium or cobalt or compounds thereof.  Specification 259,944, [Class 91], also is referred to.
Patent GB-346379-A (GB)
Title: A new or improved lubricant
IPC: C10M101/00
Filed: 1930-01-09
Abstract: Lubricants consist of 1 lb. of mercury mixed with 2 lb. of petroleum jelly or other mineral, animal, or vegetable oil or grease, or mixtures thereof.  The product may be thinned with oil, e.g. 30 lb. of paraffin oil of S.G. 890-895.  Reference has been directed by the Comptroller to Spceification 17910/07, [Class 91, Oils &c.].
Patent GB-1317735-A (GB)
Title: Hydrothermal transformation of kaolin
IPC: C04B33/04
Filed: 1970-07-17
Abstract: 1317735 Treatment of kaolinite J M HUBER CORP 17 July 1970 [22 July 1969] 34835/70 Heading C1A Kaolinite is treated at 430-1000‹ C., and 4000-30,000 p.s.i. for at least 30 mins to produce alumino silica products by hydrothermal transformation. Preferably the kaolinite is in the form of a slurry of which it comprises 5- 99%.
Patent GB-521876-A (GB)
Title: Apparatus for collecting and conveying sludge or solids in connection with the treatment of sewage
IPC: B01D21/24
Filed: 1938-11-30
Abstract: 521,876. Gravity-separation apparatus. MILLS & CO. (ENGINEERS), Ltd., J., and BOLTON, J. F. Nov. 30, 1938. No. 34842. [Class (iii)] Sludge is collected on the base of a circular settling tank a for sewage by scrapers d; attached to hinged pipes f pendent from a bridge b and up which the sludge is drawn by air, lift arrangements or pumps into boxes h, each connected to a main sludge pipe i. The pipe i passes the sludge to an open-topped vessel k in a deflector box l, which distributes the sludge in a central sludge-concentrating tank j from which supernatant liquid passes back through apertures j into the tank a. The bridge b travels on wheels b<SP>1</SP>,b<SP>2</SP>on inner and outer tracks, the wheels b<SP>2</SP> being driven from a motor b<SP>4</SP>.Air for the air lifts is supplied from a rotary, compressor g, driven by a motor g', through rein g<SP>2</SP> and branches g<SP>5</SP>to each pipe f. In aid or in lieu of the air lifts some or all of the pipes f may be provided with pumps r, driven by motors r<SP>1</SP>,as shown in Fig. 5. The pipes f with the attached scrapers can be raised by flexible ties c' leading to winches c on the bridge. The tank j has sludge scrapers m<SP>2</SP> carried on a vertical shaft m which may be fixed to rotate with the bridge or can be driven independently. The sewage may be supplied to the tank a through a pipe p, an inclined annular channel q, apertures q<SP>1</SP>and a distributing grille q<SP>2</SP>.Specification 489,452 is referred to.
Patent GB-1135775-A (GB)
Title: Improvements in or relating to the production of synthetic resin compositions
Inventor: ARBUCKLE KENNETH HAROLD
IPC: C09D191/00
Filed: 1965-08-13
Abstract: 1,135,775. Water-dilutable synthetic resins. BERGER, JENSON & NICHOLSON Ltd. 9 Aug., 1966 [13 Aug., 1965], No. 34890/65. Heading C3R. Water-dilutable synthetic resins are obtained by reacting pyrone ring-containing derivatives of unsaturated fatty acids, with maleic or fumaric acid or maleic anhydride in an amount up to 20% by weight of said ring-containing derivative at an elevated temperature, e.g. 175‹ to 250‹ C., dissolving the product in a mono-alkyl ether of an alkylene glycol and neutralizing the solution with an alkali metal hydroxide. The pyrone ring-containing derivatives are those obtained by condensation of unsaturated fatty acids, having at least 5 carbon atoms in the chain, in the presence of an oxygencontaining compound of boron as catalyst (see Specifications 827,361 and 844,620). In an example a pyrone ring-containing derivative is reacted with maleic anhydride, and the product dissolved in the monobutyl ether of ethylene glycol and neutralized with lithium hydroxide; the finished material is diluted with water, titanium dioxide added as a pigment, and used as a coating composition.
Patent GB-611740-A (GB)
Title: Improvements in or relating to holders for screw-cutting tools
IPC: B23B27/16
Filed: 1945-12-27
Abstract: 611,740. Tool-holders. ROSSETTI, R. Dec. 27, 1945, Nos. 34924 and 34925. Convention dates, Dec. 27, 1944, and April 17, 1945. [Class 83 (iii)] A holder for a chaser tool has a device provided with a mark and graduated scale for adjusting and fixing the inclination of the chaser relatively to a vertical plane normal to the axis of rotation of the part to be screw-threaded and wherein the relative movement between mark and scale exceeds the movement of the chaser. The chaser 1 is mounted on a rotatable rod 7 formed with an inclined groove 17 which is engaged by a finger 16 on a marker assembly sliding in a horizontal groove 14 in the mounting 10. The rod 7 is unclamped by a nut 12 and the marker by a nut 22. The marker is then moved until a pointer 20 indicates the required angle on a scale 21. In a modification (Fig. 5) the chaser is formed on a sleeve 41 having parallel shoulders 40 and is carried between a ring 35, having an inclined face 36, and a tightening part 39, having a similar inclined face. The parts 35, 39 are mounted between a sleeve 38 and a washer 30, both keyed to a spigot 43 of the tool-holder, and are connected by a finger 44 and clamped by a bolt 37. The chaser is adjusted by rotating the ring 35 until a mark on washer 30 indicates the required angle on a scale provided on the ring. In a further modification (Fig. 7) the chaser is spherically seated on a rotatable ring 54 provided with a scale and is pivoted on a shaft 51 carried by the tool-holder. A finger 56 engages a helicoidal groove 55 in the ring 54 and thus tilts the tool to the required angle when the ring is rotated.
Patent GB-1516137-A (GB)
Title: Method of fabricating an electronic trimmer capacitor
IPC: H01G13/00
Filed: 1975-08-22
Abstract: 1516137 Variable capacitors TEXAS INSTRUMENTS Inc 22 Aug 1975 [3 Sept 1974] 34927/75 Heading H1M In a method of manufacturing a variable capacitor, the rotor is formed by firing a first ceramic disc 10 and lapping at a major surface thereof, applying electrode 11 to the said surface and the walls of central aperture 15, and completely covering said surface with a deposited insulating layer 12, the stator is formed by securing, e.g. by adhesive, electrode 14 to second ceramic disc 13, and the two are assembled together with shaft 18 mechanically and electrically connected to the rotor but freely rotatable within the stator. The interface between stator electrode 14 and dielectric layer 12 may be lubricated. Layer 12 may be barium titanate.
Patent GB-358778-A (GB)
Title: Improvements in air line oilers
IPC: F16N7/34
Filed: 1930-11-20
Abstract: 358,778. Air-line oilers. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Ingersoll-Rand Co. ; 15, Exchange Place, New Jersey, U.S.A.) Nov. 20, 1930, No. 33023. [Class 12 (iii).] In an air-line oiler comprising a casing D having an internal wall P dividing the casing into an oil chamber E and a passageway Q for the pressure fluid, a tube S within the chamber has its ends T, U in communication with the passageway Q near the ends of the chamber and is bent as shown so as to provide looped portions X, W at opposite ends of the chamber and on opposite sides of the passage. way, ports Y, Z surrounded by screens b being formed in the looped portions such that at least one port is always above the surface of the oil. Pressure fluid enters the chamber E through the ports and oil enters the tube S due to pressure fluctuations and is carried into the passageway Q.
Patent GB-406449-A (GB)
Title: Improvements relating to the axles of hand or other trucks
IPC: B62B1/10
Filed: 1932-12-10
Abstract: 406,449. Vehicle wheel axles. NIBLETT, A..J.. 73, Wolseley Street, Reading, Berkshire, and COMPRESSED RUBBER PRODUCTS, Ltd., Bridge Street, Guildford, Surrey. Dec. 10, 1932, No. 35081. [Class 108 (ii).] A axle carrier for trucks comprises a U-member 11 through holes in the legs 13, 15 of which the axle 35 passes and is clamped by an eyebolt 29 or other clamp. As shown in Fig. 3 the member 11 is provided with flanges 17, 19 the flange 17 and bolt 25 serving to attach the member 11 to the angleiron longitudinals 23 of the truck. The eyebolt 29 has a shank 27 which passes through an aperture in the member 11 and is provided with a nut. Figs. 4 and 5 show an arrangement in which rubber &c. blocks 41, 42 embrace the axle and a U-shaped strap having shanks passing through apertures in the member 11 are provided with nuts. If the longitudinals 21 of the truck are of wood the flange 17 is omitted and the member 11 bolted to the longitudinal as shown.
Patent GB-487500-A (GB)
Title: Improved apparatus for dosing liquids and gases
IPC: C02F1/76
Filed: 1936-12-21
Abstract: 487,500. Mixing fluids in flow. ORNSTEIN, G. Dec. 21, 1936, No. 35092. [Class 86] In apparatus for mixing gases or liquids in flow in proportionate quantities in which the flow of one constituent operates a valve which controls the supply of pressure fluid to a motor for the supply of the other constituent, the valve casing is in one with the meter operating it. The main water stream operates a meter 2 actuating a rotary valve 3 in a casing 4. The valve controls the supply, through conduits 6, 7, of pressure liquid for operating a diaphragm motor 9 which operates a pump 11 for the added fluid. When the latter is a gas, water is also added by a pump 13, the water being supplied from the main through a reducing valve 14.
Patent GB-740604-A (GB)
Title: Hydraulic valve control for reversing transmission
Inventor: CARUFEL LOUIS D
IPC: B28C5/42
Filed: 1953-12-17
Abstract: 740,604. Reversing gearing. CONTINENTAL MOTORS CORPORATION. Dec. 17, 1953, No. 35127/53. Class 80(2) Epicyclic reversing gearing 38, 39, 40, Fig. 4, arranged between an engine flywheel 21 and an output shaft 36 driving through reduction gearing a cement mixer mounted on a truck with a hydraulically-engaged brake 42, for reverse drive, a hydraulicallyengaged clutch 45 for forward drive, and a hydraulically-engaged brake 48 for the output shaft 36, is controlled by a manuallyoperated rotary valve 62. Oil is supplied by a pump 50 to an axial space 107, Fig. 5, in valve 62 and thence selectively through radial passages 64, 65, 66 to passages 67, 68, 69 leading respectively to brake 48, clutch 45 and brake 42. The valve also has an arcuate peripheral groove 77 co-operating with the passages 68, 69 and with an exhaust passage 78. The arrangement is such that when changing from forward to reverse or vice versa through neutral which is the position shown in Fig. 5, the output brake 48 is momentarily applied, the clutch 45 and brake 42 are disengaged when the brake 48 is engaged, and the brake 42 or clutch 45 is disengaged when the clutch 45 or brake 42 is engaged. The passage 67 has a bleed opening 75 which immediately reduces the pressure therein when the supply of oil thereto is cut off, whereupon an exhaust valve 76 opens. The valve 62 carries a spring-loaded pin co-operating with recesses in the valve casing to limit the movement of the valve and to retain it in forward, neutral or reverse positions. In a modification, the valve passages are in different planes.
Patent GB-213013-A (GB)
Title: Electrolytic method and syphon
IPC: C25D1/00
Filed: 1922-12-27
Abstract: 213,013. Marks, E. C. R., (Locomotive Firebox Co.). Dec. 27, 1922. Cells; moulds; supporting; preparing surfaces. -A thermic syphon for the firebox of a boiler is made by electrodeposition of copper or iron, certain parts being caused to be thicker than the rest by directing a current of the electrolyte on to them. The syphon has flat sides 1, Fig. 1, of nearly-triangular shape, flared outwardly at the top and terminating in flanges 8 for attachment, by riveting or welding, to the cover of the firebox. At its lower edge the syphon widens out and forms a tube 2, with a continuation 4, which is fitted into the boiler. The flanges 8, which receive both stay-bolts and rivets, and the shoulders formed by the upper surface of the tube 2 and serving to support arch bricks, are thickened during manufacture, for instance, by circulating electrolyte along them by air jets 26, Fig. 8, when copper is deposited, or by stirrers or propellers, when iron is used. By the same means, inadequate deposition on sunken parts of the moulds is prevented. The moulds may be cast from tin, in some cases alloyed with bismuth or other metals which lower its fusing point. Parts of the mould may be spotted with asphalte or the like in order to produce holes which can be reamed out to receive the stay-bolts of the boiler. Several electrolytic vats may be arranged beneath a travelling hoist 19. On the bottomof each vat is a pedestal 16 which raises themould above the accumulated slime. Anodes 21 are hung on each side of the mould.
Patent GB-447694-A (GB)
Title: Improvements relating to gas-blast electric switches
IPC: H01H33/70
Filed: 1934-12-07
Abstract: 447,694. Gas-blast switches. RUPPEL, S., 3, Alexander-Ufer, Berlin. Dec. 7, 1934, No. 35291. Convention date, Dec. 8, 1933. [Class 38 (v)] A gas - blast switch has its fixed contact 2 in the widened part of an insulating nozzle 3 and the movable contact 1 in opening circuit is moved through the constriction into the chamber 11 on the other side, whereby the arc is subjected to the maximum gas pressure and ionized gas is quickly led away. In Figs. 2-4 (not shown), the supporting ribs 9 of the contact 2 themselves serve as the fixed contact, the movable contact being a rod with a tip shaped to engage between them. The ribs are of streamlined crosssection. In another form, Fig. 5 (not shown), a clip fixed contact is engaged by a knife-blade movable contact. In all cases the nozzle constriction conforms to the shape of the crosssection of the movable contact. The latter in Fig. 1 is tubular and apertured at 10 to admit the gas, either at separation only, or to permit a small flow of gas during normal operation. The fixed contact 2 is an elongated oval body avoiding the setting-up of eddies, and contact 1 may be either spring-pressed against it or be slitted or otherwise rendered naturally springy. The chamber above 2 may be constructed as a silencer, also of insulating material or 2 may be combined with a silencer. In certain cases either or both the contacts may be of tungsten or other difficultly-vaporizable metal. Steam or the like may be added to the gas, which may be fed to the chamber on movement of the switch or generated by the arc or the current. The Specification as open to inspection under Sect. 91 showed also a form having a tubular fixed contact engaged by a tubular movable contact. This subject-matter does not appear in the Specification as accepted.
Patent GB-367884-A (GB)
Title: Improvements in or relating to high voltage vacuum or rare gas-filled tube devices
IPC: H01J5/06
Filed: 1930-11-24
Abstract: 367,884. Discharge apparatus ; switches. WESTINGHOUSE LAMP CO., Bloomfield, New Jersey, U.S.A.-(Assignees of Slack, C. M. ; 33, Berkeley Place, Bloomfield, New Jersey, U.S.A.) Nov. 24, 1930 No. 35303. Convention date, Nov. 30, 1929. [Class 39 (i).] High-voltage vacuum or rare-gas filled devices operating without appreciable gas ionization, particularly X-ray tubes, Lenard-ray tubes, rectifiers and switches, are protected from failure, such as puncture of the envelope, due to undesired electron discharges from an electrode at a high negative potential, by shielding this electrode electrostatically by a negative charge which is separated from the interior of the device and is on the outer surface of insulating material closely surrounding and extending beyond the electrode. The potential gradient at the surface of the electrode is thus reduced below that necessary for the cold emission of electrons. In a Lenard-ray tube with an anode 24, Fig. 4, deflecting plates 25, 26 and a thin vitreous window 27 permeable by cathode rays, the cathode 23 is surrounded by a doubly re-entrant part 28 of the envelope 22. The part 28 encloses an annular space open to the air and sealed at its inner end and may contain a metal layer 29 connected to one lead of the cathode. A similar re-entrant part may surround the cathode or both electrodes of an X-ray tube, the anode of a rectifier, or each contact 31, Fig. 5, of a switch with bellows 32, 33 allowing movement of the contacts. The layer 29 may be a gold, silver or aluminium coating or may be of tin foil. The layer 29 may be omitted, the air in the annular space being ionized by the field. The X-ray tube may be filled with argon, helium or neon. Occluded gases need not be thoroughly removed from the electrodes. In modifications, the shield comprises a metal cylinder inside the envelope and coated with insulation or a metal coating 55, Fig. 7, on a narrow cathode arm 51 of the bulb. The anode arm 52 is then made longer as shown.
Patent GB-1120686-A (GB)
Title: Improvements in molded bearing assembly and method of making same
Inventor: TUCKER WILLIAM SHACKFORD
IPC: B29C45/14
Filed: 1966-08-08
Abstract: 1,120,686. Spherical bearing assemblies. MPB CORP. 8 Aug., 1966, No. 35345/66. Heading E2F. [Also in Division F2] A bearing assembly comprises an inner bearing member 2 having an outer partspherical shaped surface 9 and a cylindricallyshaped bore therein; a housing 1 having a bore therein with a part-spherical shaped surface 5; and a member 3 of synthetic plastics material positioned in the clearance between the member 2 and the housing 1. The maximum diameter of the member 2 is substantially the same as the minimum diameter of the bore in the housing 1 so that a clearance therebetween is a minimum. The member 3 is produced by filling the clearance with a heated, liquified, low-shrink synthetic plastics material, via an orifice 8 in the housing 1; the plastics material being slightly pressurised so as to fill the clearance in an unstressed condition and being heated just enough to become liquified. An integral key of plastics material is formed in the orifice 8 and prevents relative rotation between the member 3 and the housing 1. The member 2 may be made of hardened metal or sintered material and the housing 1 may be made of steel or of plastics material. In a modification, the housing 1 has a cylindrically-shaped bore. A bearing assembly may be provided at one end of a rod, the other end thereof being screw-threaded or a bearing assembly may be provided at each end of a link.
Patent GB-354360-A (GB)
Abstract: 354,360. Flexible ball pumps. BARRETT, A. G. and BURTON, H. H., Evington Valley Mills, Leicester. May 7, 1930, No. 13989. [Class 8 (i).] A rubber bulb for a motor horn, scent spray, &c., is built and moulded on a non- collapsable mandrel, the neck of the bulb being large enough to allow the mandrel to be withdrawn after vulcanization. The rubber is preferably of uniform thickness throughout. The bulb may be applied to a horn &c. having a part of the correct size to receive it, or an adapter c may be provided to connect it to horns of standard type. The bulb is secured to the horn or the adapter by an indented metal ring e. Alternatively, the hole in the neck of the bulb may be plugged with a rubber bung having a smaller hole to receive the end of the horn. The stem of the mandrel may be provided with positioning pegs engaging similar holes in the mould.
Patent GB-1041819-A (GB)
Title: Printing frame for screen printing
IPC: B41F15/36
Filed: 1963-09-09
Abstract: 1,041,819. Screen printing apparatus. A. KNAPPSTEIN, [trading as KNAPPSTEIN KOMM. GES. A.]. Sept. 9, 1963 [Dec. 7, 1962], No. 35514/63. Heading B6C. A rectangular printing frame 5 for screen printing comprises hollow side members 6 joined at the corners by blocks 7. Each member 6 has associated therewith and parallel thereto a bar 13 which carries clamps for securing thereto the associated edge of the screen fabric. Each bar is attached to the relevant side member 6 by two tightening devices 9, each of which comprises clamping members and screws such as 10, 11 and 16, whereby the device is clamped to the vertical side walls of the member 6 in a readily releasable and vertically adjustable manner-see particularly Fig. 2. Each device also carries a screw 17, the rotation of which effects horizontal movement of a tensioning member 12 attached to the bar 13. Thus suitable manipulation of the screws 17 enables satisfactory tensioning of the screen fabric over the frame. As shown in Fig. 1, each corner of the frame has associated therewith a member 19 which is joined to the two adjacent ends of the bars 13 through pin-and-slot arrangements 18, 20. A tensioning piece 22 is pivotably attached to the member 19 and carries a bar 23 for fastening the screen fabric to the piece. In a modified arrangement the corner members 19 are dispensed with the tensioning in the corner areas being effected by independent tensioning units, each of which in essence comprises an adjustable rubber sleeved pin 32, Fig. 4, and member 36 for locking the unit to the frame and a manually manipulable screw 28 for effecting movement of a slidable member 25 which mounts a comb 26 engageable with the screen fabric. In yet a further embodiment, units 43, Fig. 5, are arranged around the frame 5 and each comprises jaws 44, 45, Fig. 6, for locking the unit to the frame through a screw member 47 and a readily rotatable screw member 53 for moving the rail 42-which comprises a member 49 mounting a clamping 48-relative to the frame. The rail member 49 is carried by members 50 slidable along guide rods 52. In a modified version of the unit of Fig. 6, the screw member 53, Fig. 7 (not shown), is inclined relative to the plane of the printing frame 5.