baber/WOPTO huggingface dataset:
Patent GB-1531183-A (GB)
Title: Detecting apparatus
IPC: G01N21/77
Filed: 1977-01-28
Abstract: 1531183 Explosion-proof gas detector DRAGERWERK AG 28 Jan 1977 [28 Jan 1976] 3685/77 Heading G1B A portable explosion-proof detecting apparatus for conveying gaseous material through a detector tube 10 comprises holder 9 for the tube, a suction pump which may comprise electric motor 2 and shaft 15 driving rollers 14 operating on flexible pump tube 7, for drawing gaseous material through tube 10, manually operable electric switch 4, 5, 6 for controlling motor 2, means for receiving an electrical power source such as battery 3, electrical conductor means for inter-connecting the power source, contact means in switch 4, 5, 6 and the motor, and pressure-resistant casing means 13' bounding a chamber containing the motor, the switch contact means and the conductor means, the pump being outside the casing and the switch contact means being operable from outside the casing. An outer wall of the apparatus is pivotable .
Patent GB-189024-A (GB)
Title: Improvements in adjustable hinges or joints for wind-screens of motor-cars and the like
IPC: B60J1/04
Filed: 1922-02-08
Abstract: 189,024. Auster, Ltd., and Auster, A. C. Feb. 8, 1922. Pivoting adjustments for wind-screens of the kind in which the movable screen member 1 has a split tube 2 embracing a fixed cross pin 3 and is clamped thereon by a thumb screw 9 engaging a fixed screwed pin 8, are provided with a ball thrust bearing between the clamping nut and a lug or member with which the nut engages. This bearing comprises a fixed ball retaining-collar 10 in which the balls 12 are secured, and a ball race 13 on the nut as shown. Instead of a nut screwing on to a pin fixed to the lugs 6, a rotatable screwed pin engages with a tapped hole in one of the lugs so that the head of the pin engages with the other lug in the clamping operation. In this form, the ball race is screwed within or upon the underside of the head. Or both the screwed bolt or nut and one of the lug members may carry ball races, between which the balls are housed.
Patent GB-449099-A (GB)
Title: Improvements relating to the valve operating mechanism of internal combustion engines
IPC: F01L1/12
Filed: 1935-02-06
Abstract: 449,099. Valve gear. LEEK, G. H., 89. Learn Terrace, Leamington Spa, and ROSE, R. H., Red Roof, Penn, Wolverhampton. Feb. 6, 1935, No. 3783. [Class 7 (vi)] Inclined overhead inlet and exhaust valves 11 are actuated from cam-shafts 5, 6 located at opposite sides of the top of the cylinder, in conjunction with inclined tappets 9 mounted in the cylinder head and connected by push rods 13 to rockers 20. The arm of the rocker engaging the push rod is offset from the arm engaging the valve, in order to arrange the tappet at one side of the passage 22. A screw adjustment 15 may be provided on the rocker. The Provisional Specification describes the use of a single cam shaft.
Patent GB-524726-A (GB)
Title: Improvements in or relating to mercury and the like switches
IPC: H01H29/24
Filed: 1939-02-06
Abstract: 524,726. Mercury switches JEFFERSON ELECTRIC CO., and ARMSTRONG, F. S. Feb. 6, 1939, No. 3810. [Class 38 (v)] A mercury switch comprises an iron envelope 10 constituting one electrode. A second electrode 13 has an enlarged head 14 which supports a vitreous member 15 to which is cemented a vitreous cup 17 having an aperture 18. Above the member 15 are arranged a plug 21 of rubber and a nut 22 screwed into the envelope 10 and having an insulating centre. A nut 27 screws down on top of washers 26. 28 to clamp the parts in position. The size of the rubber plug 21 is chosen such that when nut 27 is loosened space is provided between the plug 21 and electrode 13 and envelope 10 thus allowing the air to be removed through radial channels 29 in washer 26 and allowing inert gas, such as hydrogen to be injected. For this purpose the envelope has screw threads 40 allowing it to be screwed into the apparatus shown in Fig. 4 whereby the nut 27 is tightened while the switch is subject to gas pressure. The switch is operated by tilting it until mercury enters hole 18 and during the normal operating movement the circuit is made and broken between two bodies of mercury. Modified forms of the cup 17 are described, and also a changeover switch having an electrode at each end.
Patent GB-1455534-A (GB)
Title: Device for testing the adhesion of a coating
IPC: G01N19/04
Filed: 1975-01-29
Abstract: 1455534 Testing adhesion: Pressure gauges: Indicating apparatus CENTRUM TECHNIKI OKRETOWEJ 29 Jan 1975 [2 Feb 1974 8 July 1974] 3828/75 Headings G1J G1L and G1S A coating 8, Fig. 1 on a base 9 has stuck to it an element 7 with a screwed head 6 and the force required to pull the element 7 away from the coating without removing the coating from the base is measured by a Bourdon gauge, Figs. 2 and 3 connected to a liquid or gas supply fed by the tube shown in Fig. 1. In operation, the test apparatus is arranged as shown in Fig. 1 and fluid is compressed into the space between the diaphragm 5 and the plate 1. This compression forces a piston 4 down on to the coating and lifts the element 7 until it breaks away from 8. The force required to do this is registered on the gauge by a magnetized pointer 13 which attracts and drags around the dial a spherical plastics coated permanent magnet 10 housed in a closed oil filled toroidal tube 11 defined between two layers of a plastics e.g. methyl polymethacrylate pane 12. After violent break away of the element 7 the pointer 13 returns and leaves the magnet 10 in its last position. A radial magnetic member 14 is provided to return 10 to zero.
Patent GB-138993-A (GB)
Title: Improvements in hack-saw machines
IPC: B23D49/04
Filed: 1919-02-17
Abstract: 138,993. McMurdo, A. H. Feb. 17, 1919. Reciprocating-saw machines. - A manually-operable hack-saw machine for cutting rails, girders, &c. comprises two saw frames pivoted together so that the saws engage with the upper and lower sides of the work respectively, the upper saw being kept in engagement with the work by the weight of its frame or by an additional weight attached to the frame for that purpose, and the lower one by a counterweight on an extension of the frame beyond the pivot. As shown in Fig. 1, frames 1, 2 are reciprocated by means of a handle-lever 19 connected to the pivot pin 7 and pivoted on the frame of the machine, which may be fixed or portable. The frame 1 is provided with an adjustable weight 15, and the extension 8 of the frame 2 with an adjustable and removable counterweight 9. Projections 17 on the frame 1 guide the frame 2 so that the saws are kept in alinement. The cut is completed by the upper saw after removal of the counterweight 9.
Patent GB-416365-A (GB)
Title: Improvements in electric arc welding
IPC: B23K33/00
Filed: 1934-02-06
Abstract: 416,365. Uniting by fusion. FORRESTER, H. J. C., 88, Chancery Lane, London. -(Naamlooze Vennootschap Machinerieen-en Apparaten Fabrieken ; 30, Croeselaan, Utrecht, Holland.) Feb. 6, 1934, No. 3924. [Class 83 (iv).] In order to produce by arc welding a joint of high resistance to permanent alternating stress, the cross-section of the outermost layer of the weld is broadened towards both sides from a point in the neighbourhood of the surface of the parts, e.g. as shown in Fig. 3, and welding is effected by electrodes of large diameter and with thick flux sheaths so that the edges of the seam are melted substantially by indirect heating by the fluid slag the electrode being swung to and fro perpendicularly to the seam so as to complete the outermost layer in a single operation. The form of seam may be produced by bevelling or rounding off the outer corners of the weld groove as shown in Fig. 5. The welding bead may be subsequently flattened or removed. The sheath may have a volume equal to or greater than that of the metal core and consists of fluxes free from oxidizing constituents. A suitable flux paste consists of 75 parts of talc, 25 parts of water glass and 10 parts of 50 per cent ferro-manganese. For a 16 mms thick weld the diameter of the core may be 10 mms and of the coated core 15 mms. The tip of the electrode is preferably guided in a sine curve, the stroke of the travel perpendicular to the seam being 4 mms on either side and the onward travel parallel to the seam being 5 mms for each reciprocation perpendicular to the seam.
Patent GB-1117101-A (GB)
Title: Improvements in or relating to doors
Inventor: KIRBY WILLIAM HAIG
IPC: E06B3/80
Filed: 1965-01-29
Abstract: 1,117.101. Flexible doors. INDUSTRIAL DOORS Ltd. 29 April, 1966 [29 Jan., 1965], No. 3975/65. Heading E1J. A door comprises an opaque panel 2, and a transparent panel 1 each of polyvinyl chloride or another vinyl resin, both panels being in a common plane and welded along their adjacent transverse edges. Each of the transverse edges is of tapered or wedge section and embedded in the welding material, e.g. a vinyl resin. The top and one side are fixed to the limbs 3, 4 of a metal carrier hung upon a jamb of a door frame or opening. The other side of the door is inclined, the minimum width being more than half the width of the frame or opening.
Patent GB-563667-A (GB)
Title: Improvements in means for connecting electric lighting sources in flameproof enclosures
IPC: F21V25/12
Filed: 1943-03-12
Abstract: 563,667. Lamp-holders. REVO ELECTRIC CO., Ltd., and REEVES, F. H. March 12, 1943, No. 4035. [Class 38 (i)] A holder for a tubular lamp is adjustably mounted in a flameproof terminal chamber. The holder f is carried by a bracket g that slides on a guide j and is pressed toward the lamp a by a spring h, providing an adjustment for variations in the length of the lamp. A transparent enclosure b for the lamp fits into a bush c supported and allowed slight endwise movement by an inverted U-shaped spring l engaging a peripheral groove c<1>. Access to the terminal chamber d is obtained by removing the lower part d<1>. Leads enter the chamber by a conduit d<3> and pass through spaced bushes e. The holder f is held in a retracted position by a spring catch m.
Patent GB-863992-A (GB)
Title: Improvements relating to magnetrons
Inventor: TWISLETON JOHN ROBERT GEOFFREY
IPC: H01J23/22
Filed: 1958-02-07
Abstract: 863,992. Magnetrons. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 5, 1959 [Feb. 7, 1958], No. 4142/58. Class 39(1). The strapping between alternate vanes of a multi-cavity magnetron or a magnetron-type ultra-high frequency tube is capacitative. It is stated that this ensures that, for the fundamental mode, the group and phase velocities of the travelling-wave are in the same direction over a suitable frequency range. As shown, the strapping between alternate anode vanes 1, 3 is constituted by staggered segmental plates 13, 14 which are connected to the anodes vanes and are disposed on either side of a dielectric ring 11. The invention may be applied to travelling-wave amplifiers, oscillators and accelerators.
Patent GB-175295-A (GB)
Title: Improvements in planimeters
IPC: G01B5/26
Filed: 1922-02-13
Abstract: 175,295. Wolf, F. Feb. 13, 1922. Planimeters.-In apparatus of the polar type, the tracer arm consists of a string the lengthening and shortening of which causes rotation of a member on which it is wound and which influences the measuring wheel of a counting- mechanism adapted to roll and to be radially displaced by the rotation of said member on a plate perpendicular to the axis about which the tracer arm is swung. The plate may be rotatable and have imparted thereto a movement proportional to the angular movement of the tracer arm. In the form shown in Figs. 1 and 2, the string 2 is attached to the tracer 1 and passes between guide-rollers 9 around a pulley 8 on to a spring drum 3. The drum 3 and pulley 8 are mounted on a horizontal plate 10 which is carried by a spindle 4 mounted in step bearings on the frame 11. The plate 10 carries guides for a slide 16 adjustable in accordance with the unit of measurement by a screw 15 and having posts 14 for the pivotal connection of a bracket 12 on which is mounted the counting apparatus and measuring wheel 5 which bears on a horizontal plate 6. The slide 16 is provided with a rack 17 which gears with a pinion 18 on the axis of the pulley 8. Modifications are described in which (1) the plate 6 is rotated by gearing actuated by the tracer arm and auxiliary strings are provided, (2) the rack 17 instead of being fixed to the slide 16 is fixed to a transversely movable slide having a cam bearing on a roller on the slide 16 so as to compensate for the difference between the change in length of string and change in radius of measuring wheel on rotarv plate 6, and (3) the bracket 12 is mounted for rotary instead of rectilinear movement by means of an adjustable arm engaging a cam on a pinion gearing with a pinion on one of the string drums.
Patent GB-136713-A (GB)
Title: Improvements in Machines for Bleaching and similarly Treating Textile Fabrics and Yarns in Rope Form.
IPC: D06B3/24
Filed: 1919-02-20
Abstract: 136,713. Morley, W., and Bleachers' Association. Feb. 20, 1919. Passing materials through fluid-supplying apparatus; piling yarns and fabrics in rope form.- A plaiting-down appliance for textiles in rope form consists of a hollow trunk oscillated and reciprocated mechanically as it plaits down the material, which is saturated in its passage by a stream of bleaching cr other liquid passing into the trunk. Fig. 2 shows a duplicate arrangement, in which each hollow metal trunk a is pivoted in bearings a in a bracket b terminating in a boss loose on a fixed shaft d. A crank-driven rocker e reciprocates the boss b, while the trunk is oscillated by a link j passing through the lower arm of the rocker c and connected by a clip k to a groove in a sleeve m sliding on the shaft d. The sleeve is guided by a pin working in an horizontal slot on a bracket, and is operated by a pin m<3> working in the groove p<1> of a hollow cam p fixed on a shaft q driven from the main shaft through a worm and worm-wheel. Each rope of material is drawn into the machine by a rotating winch and is fed into the trunk a through a tapered guide and saturator w, which is supplied with bleaching or other liquid through the pipe v. A variable speed and throw may be imparted to each trunk a to lay the material in lengths corresponding to the shape of the receiving-vessel.
Patent GB-163433-A (GB)
Title: Improvements in mechanical stokers
IPC: F23H11/00
Filed: 1920-02-11
Abstract: 163,433. Wood, W. R. Feb. 11, 1920. Grates; steam, supplying.-The upper run of a travelling grate a is substantially horizontal or slightly upwardly inclined for the greater part of its length, and is inclined downwards at the rear towards a secondary grate e adapted to receive unburnt fuel and ashes d. Steam is supplied beneath the secondary grate, and may be generated from water in the ash-pit. Specifications 163,643 and 163,644 are referred to.
Patent GB-545615-A (GB)
Title: Improvements in and relating to tool-holders
IPC: B23B29/28
Filed: 1941-04-01
Abstract: 545,615. Turret tool-holders. JAMES, W. April 1, 1941, No. 4343. [Class 83 (iii)] A multiple tool holder for a lathe comprises a head 2 adapted to receive a number of tools 6 and a supporting shank 1 the head being adjustable about a stem portion 3 for selectively positioning the tools and being further adjustable by means of an eccentric bush 5 for the fine setting of the selected tool. The parts are secured by a nut 4. The bush is adjusted by a knurled portion 5a and has teeth 5c coacting with serrations on the shank portion. The head is also locked to the bush by coating serrations 5d. The tools are secured in radial holes in the head by grub screws.
Patent GB-1485602-A (GB)
Title: Process for preparing thio-indigo dyestuffs
IPC: C09B7/10
Filed: 1976-02-04
Abstract: 1485602 Preparing thioindigo dyestuffs HOECHST AG 4 Feb 1976 [6 Feb 1975] 04356/76 Heading C4P  Thioindigo compounds are prepared by oxidizing a 3-hydroxy-thionaphthene or 3- hydroxy-benzothionaphthene with an aqueous solution of a peroxo-disulphate. The starting materials may be substituted by halogen, e.g. Cl or Br, or by C 1 -C 4  alkyl or alkoxy groups. Sodium, potassium and ammonium peroxodisulphates are used. In preferred embodiments the starting material is dissolved in a one to three-fold molar quantity of an. alkali metal hydroxide solution an approximately molar amount of an aqueous solution of the peroxo-disulphate is added to - 20 to +50 C. and the alkali consumed in the reaction is replenished continuously or portionwise. The dyes are used to dye cotton and to colour lacquers and plastics.
Patent GB-1119322-A (GB)
Title: Furnace roof construction
Inventor: HANSEN KENNETH WALTER
IPC: F27D1/18
Filed: 1967-01-30
Abstract: 1,119,322. Furnace roof. HARBISONWALKER REFRACTORIES CO. 30 Jan., 1967 [11 March, 1966], No. 4468/67. Heading F4B. A furnace roof, particularly a downwardly concave roof for an electric furnace comprises bricks 1 arranged in concentric rings, the outer rings comprising metal encased basic bricks, and the central part of the roof formed of uncased basic bricks 12-19 joined by a mortar containing sufficient iron oxide to react to form a monolithic hot face. Holddown members 25 maintain the contour of the roof on heating, and crimps in the metal casing of the bricks of the outer rings allow for expansion in the radial and circumferential directions. The use of uncased bricks at the central part avoids the danger of short circuiting the furnace through the metal brick casings.
Patent GB-905674-A (GB)
Title: An improved method and means for supplying power to a movable carriage
IPC: H02G11/00
Filed: 1960-02-09
Abstract: 905,674. Suspending cables. RUSHWORTH, D. May 8, 1961 [Feb. 9, 1960], No. 4474/60. Addition to 801,770. Class 36. [Also in Group XXX] In a modification of the parent Specification in which power to a movable carriage is A, Fig. 1 is supplied by coiled or looped cables E supported on a moving cable D, pulleys C for the moving cable D are provided at each end of the carriage track B so that the cable D forms a continuous loop. In a modification a pair of parallel support cables are provided and the electric cable is looped between runners on each cable.
Patent GB-1505022-A (GB)
Title: Cathode
IPC: C25C7/02
Filed: 1976-02-06
Abstract: 1505022 Cathode and hanger bar assembly IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 13 Jan 1977 [6 Feb 1976] 04761/76 Addition to 1460089 Heading C7B A cathode and hanger bar assembly comprises a hanger bar formed of Al or Cu having a core of another metal, e.g. mild or stainless steel or Fe, metallurgically bonded thereto, in which the Al or Cu is relieved at least intermittently along the length of the bar to reveal the core and a continuous sheet of stainless steel or Fe or other corrosion-resistant Fe based alloy is welded directly or indirectly along one edge only to at least part of the revealed core. An alloy specified for the continuous sheet contains 17% Cr, 12% Ni, 2¢% Mo, balance Fe.
Patent GB-103467-A (GB)
Title: Improvements in Abdominal Belts.
Inventor: DUPUY-NEE-MESTREAU JEANNE
IPC: A61F5/03
Filed: 1916-03-31
Abstract: 103,467. Dupuy (nÚe Mestreau), J. Jan. 20, 1916, [Convention date]. Addition to 100,253. Abdominal belts.-The ends of the strips for attachment to the dorsal borders of the abdominal belt described in the parent Specification are cut straight instead of on the slant.
Patent GB-576955-A (GB)
Title: Board game
IPC: A63F9/02
Filed: 1944-03-15
Abstract: 576,955. Game' apparatus. EDWARDS, C. E. March 15, 1944, No. 4845. [Class 132 (ii)] A board 1 has a V- shaped recess or slot 2 into which is thrown a similarly shaped playing piece, a peg 3 on the board serving to guide the playing piece into the recess. The playing pieces may be of different colours and made of wood, cardboard, plastic material, metal or other suitable material.
Patent GB-1241285-A (GB)
Title: Improvements relating to neutralised transistor amplifiers
Inventor: SLATTER JOHN ALFRED GEORGE
IPC: H03F3/191
Filed: 1970-02-02
Abstract: 1,241,285. Integrated circuits. MULLARD Ltd. 2 Feb., 1970, No. 4868/70. Heading H1K. [Also in Division H3] An integrated circuit for a transistor with a neutralizing capacitor connected to its base comprises as shown in Fig. 3 N-type regions 10, 11 separated by isolation walls 9 and formed on a P-type substrate 7. Region 11 forms the collector with the base and emitter formed by P and N+ regions 12, 13. A region 14 of highly conducting N-type forms the collector contact. According to the invention, the base-collector capacitance and the neutralizing capacitor constituted by areas 15, 16 are formed at the same time by the same diffusion process to obtain a fixed ratio of capacitances. The base 12 and the corresponding P-type material of the neutralizing capacitor are connected by metal contact layer 22 of evaporated aluminium. In the embodiment of Fig. 7, the collector and one side, i.e. conductivity region of the neutralizing capacitor are formed in the same type material 25. The integrated circuit may be used in tuned amplifiers which may be of the push-pull type (Figs. 1, 5 and 9, not shown).
Patent GB-974415-A (GB)
Title: Process and apparatus for cleaning air in spinning mills
Inventor: GREFU GUSTAV
IPC: B07B7/08
Filed: 1961-02-09
Abstract: 974,415. Centrifugal separators. SECRETARY GENERAL OF RUMANIAN MINISTERUL INDUSTRIEI BUNURILOR DE CONSUM. Feb. 9, 1961, No. 4897/61. Heading B2P. Dust &c. particles are removed from air in spinning mills by passing the air firstly through a rotating perforated cylinder 3 to separate out the coarse particles, secondly through a hopper 6 where further particles settle in the bottom part 7 of the hopper and finally through tubular filters 9 to remove the fine particles. The cylinder 3 is mounted in a housing 2 having an inlet 1 for the air to be treated and a cleaning door 4. Air is discharged from the ends of the cylinder 3 to the hopper 6 through ducts 5.
Patent GB-1463557-A (GB)
Title: Power supplying device for the operation of a gas discharge container
IPC: C21D1/38
Filed: 1974-02-01
Abstract: 1463557 Supply circuits for gas discharge devices ELEKTROPHYSIKALISCHE ANSTALT BERNARD BERGHAUS 1 Feb 1974 [19 Feb 1973] 04899/74 Heading H2H A power supply for a gas discharge device 10 comprises a transformer 26, a full wave bridge rectifier having four controllable rectifiers 28- 31, a device 20 for monitoring the operating current and voltage of the discharge device, a control 22 connected to the control electrodes of the rectifiers, and an inductance 24. The device 10 may be a nitriding furnace in which a workpiece 13 is nitrided by a glow discharge in a nitrogen atmosphere. The control 22 is provided with a regulator 23 which adjusts the firing point of the thyristor or thyratron rectifiers 28-31. At each zero of the full wave rectified supply waveform, the inductance 24 enables a delay of 2-7 milliseconds of the firing of the rectifiers to prevent any pitting of the workpiece due to arcing.