baber/WOPTO huggingface dataset:
Patent GB-460983-A (GB)
Title: Method of winding and cutting paper into sizes
IPC: B26D1/20
Filed: 1935-04-30
Abstract: 460,983. Cutting paper. JANSON, E. H., and NAUCLER, J. O. April 30, 1935, No. 12829. Void. Convention date, May 1, 1934. [Class 31 (i)] [Also in Group XVI] A method of cutting paper of different kinds into sheets consists in winding in succession paper of different kinds on a roller or rollers, feeding a paper-cutting machine with the paper thus carried by the rollers and cutting this paper into sheets as it is unwound. The kind of paper of which the smallest quantity is required is first wound upon the roller and then the next and so on, or if the quantities are approximately equal, the heaviest paper is put on first.
Patent GB-566436-A (GB)
Title: Improvements in and relating to smokers' pipes and cigarette holders
IPC: A24F1/00
Filed: 1943-08-10
Abstract: 566,436. Tobacco pipes &c. EDGE, D., and CARTER, L. H. Aug. 10, 1943, No. 12883. [Class 130] An upstanding extension, rib or lug 17 on the top of a mouthpiece for a pipe or cigar or cigarette holder forms a barrier which divides the smoke passage into two parts connected by an invertod U-shaped passage 18 for the smoke which is thereby isolated from nicotine and moisture which collects in a chamber 22 beneath the inlet 20 to the U-shaped passage 18 and in a small branch passage 21 connecting the ends of that passage. An absorbent filter 16 pushed into the spigot 15 of the mouthpiece absorbs most of the moisture &c. from the smoke and also takes up moisture &c. that has collected in the chamber 22. The ends of the horizontal portion of the U-shaped passage 18 are closed by removable plugs 23 and the restricted passage 21 may be arranged with its lower boundary level with that of the main smoke passage.
Patent GB-129275-A (GB)
IPC: B64C3/14
Abstract: 129,275. Bertrand, E. Sept. 8, 1917. [Convention date]. Planes, construction of. - Aeroplane wings, are curved both transversely and longitudinally on both surfaces, the mean lines of the sections as well as all longitudinal sections being geometrically similar and the thickness decreasing towards the front and rear and towards the root and tip of the wing in the same proportion. Fig. 5 shows a plan, Fig. 2 a longitudinal section on the line c-d, and Fig. 3 a transverse section on the line a-b, the section a-b being taken through the points of maximum thickness of the wing. On both sections the thickness at the corresponding points 1-1, 2-2 - - - is the same, and on other longitudinal sections the thickness at any point bears the same ratio to the maximum thickness of that section as do the corresponding points on the main sections to the maximum thickness of the wing, which is between the third and fourth division when twelve divisions are taken as shown. The theoretical plane has the oval plan shown in dot-and-dash lines in Fig. 5 with its maximum chord one-third of the span from the root. For practical purposes the root is thickened. The wing may be convex or concave downwards. There may be points of inflexion on the rear undersurfaces obtained by forming exit tangents to the mean curves of the longitudinal sections. The front portions of either or both surfaces may be formed with a reverse curvature. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a wing having the upper and lower surfaces parallel to one another on a section corresponding to Fig. 3 for the greater part of their length. Figs. 4 (Cancelled) and 11 (Cancelled) show two other plan forms, the former figure also showing ribs which are set at gradually increasing angles towards the wing tips. The front portions of these ribs are concave downwards, and the rear portions of varying length behind the transverse line shown are convex downwards. A paraboloid extension c, b, e, Fig 5, is described as added to the wing to form a stabilizing surface. A wing having a transverse curvature convex downwards and a longitudinal curvature convex upwards is also described. This subject-matter does not appear in the Specification as accepted.
Patent GB-645769-A (GB)
Title: Improvements relating to apparatus for measuring the peak value of electrical signals
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: G01R19/04
Filed: 1948-05-12
Abstract: 645,769. Thermionic valve voltmeters. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 12, 1948, No. 12972. [Class 37] A peak voltage meter comprises a condenser which can be charged rapidly through a rectifier and discharged slowly through a resistance, an amplifier having the potential set up across the condenser applied to its input, and means for feeding back a potential from the output load of the amplifier to the resistance in such sense as to retard variations in charge of the condenser via the resistance so that the variation of the potential set up across the condenser from the peak value of signals applied to the meter is reduced. A diode 1 has its cathode connected to the upper terminal of a condenser 2, the signals of which the peak value is to be measured being applied to terminals 3, 4. The upper terminal of the condenser 2 is also connected to the upper terminal of a resistance 5 and to the control grid of an amplifier 6 having resistances 8, 9 in its cathode circuit. The junction of the resistances 8, 9 is connected to the anodes of two diodes 11, 12. The cathode of the diode 11 is connected to the lower terminal of the resistance 5 and to the upper terminals of a condenser 13 and a resistance 14, while the cathode of the diode 12 is connected to the lower terminal of the resistance 14 and to the upper terminals of a condenser 15 and a resistance 16, the lower terminals of the condensers 2, 13, 15 and resistance 16 being earthed. The condensers 2, 13, 15 have progressively increasing capacities so that the time constant of the condenser 15 and resistance 16 exceeds the time constant of the condenser 13 and resistance 14, which exceeds the time constant of the condenser 2 and resistance 5. A voltmeter 17 is connected as shown. The condenser 2 charges to the peak value of the signals within the duration of a peak and discharges slowly through the resistance 5 in the interval between successive peaks. When the condenser 2 is charged to its peak value the potential across the condenser 13 rises with a delay determined by the time constant of the diode 11 and the condenser 13 and then falls with a delay determined by the time constant of the condenser 13 and resistance 14, and since the potential across the condenser 13 is applied to the lower terminal of the resistance 5 the potential difference across that resistance is effectively decreased and the time for which the potential at its upper terminal remains effectively at its peak value is increased. Similarly the rate of discharge of the condenser 13 and resistance 14 is decreased by feed-back from the condenser 15. The diode 12, condenser 15 and resistance 16 may be omitted and the lower terminal of the resistance 14 earthed.
Patent GB-676695-A (GB)
Title: Improvements in or relating to weft-feeler arrangements in looms
IPC: D03D51/34
Filed: 1949-05-16
Abstract: 676,695. Weft feeler mechanism for looms. FISCHER, AKT.-GES., G. May 16, 1949 [Aug. 30, 1948], No. 12989/49. Class 142(iii) When a pirn in a shuttle is sufficiently exhausted, a weft feeler moves a pawl against spring pressure into engagement with a notch on a reciprocating member to stop the loom or initiate shuttle or pirn change. A feeler 3, pivoted on a pin 1 rocks a pawl 15 by means of a stop 16 on a rod 14. A spring 17 presses the pawl against the stop. When the pirn 9 becomes exhausted, the pawl engages the tip 24 of a notch on a reciprocating member 22, and due to the angle of the face 23 and of the corresponding face of the pawl, the pawl moves against the pressure of the spring 17 into full engagement with the member 22. The member 22 causes the pawl 15 to displace a slide 20 in guides 21 to stop the loom or initiate weft replenishment. In another embodiment, the pawl 15 may be pivoted to a stationary part of the loom and engagement of the pawl with a notch on an oscillating rod causes the rod to be displaced to stop the loom or initiate weft replenishment.
Patent GB-275744-A (GB)
Title: Improvements relating to the ventilation and warming of houses and other buildings having cavity walls
IPC: F24D5/04
Filed: 1926-05-21
Abstract: 275,744. Leighton, J. M. May 21, 1926. Heating buildings.-Buildins are heated by the provision of wall cavities 2<a> and a hollow chimney breast 1, which are adapted to constitute the whole or part of a closed path around which air can circulate, means also being provided to allow air to enter or escape from such path when desired. Flues 3a, 4a are arranged in the hollow breast 1, and for heating the building air passes from the chimney breast through valve-controlled openings 5 and into the wall cavities 2a. Baffles 10 are provided at the first floor level to cause, the air to circulate, and the air is finally drawn into the chimney breast through controlled openings 6. Part of the air path may be constituted by the space 12 between the roof and ceilings of the upper floor, or by the space 13 beneath the ground floors. Radiators may be disposed in the chimney breast in the case of an electrically-heated house.
Patent GB-1327551-A (GB)
Title: Method of producing dipole and multiple magnet windings and coil  arrangements produced by the said method
IPC: H01F7/20
Filed: 1972-03-21
Abstract: 1327551 Electromagnets KERNFORSCHUNG mbH GES FUER 21 March 1972 [23 March 1971] 13041/72 Heading H1D Dipolar and multipolar magnet coils for a particle-optical device utilize superconductive windings cooled with liquid He, and are arranged to surround a cross sectional area approximating the overlap region for pair of ellipses whose minor axes are displaced from but parallel to each other; so as to provide a homogeneous field over the cross sectional area common to both (Fig. 1, not shown). The cross sections of the windings are situated in spaces outside the overlap region and lying between the peripheries of the ellipses, and the sum of the rectangular cross sections equals the area of the spaces. The coils have a common axis of symmetry 7 and each conductor has a rectangular crosssection 8 with the coils arranged symmetrically about the axis 3. The cross sectional width c is the same for each coil, and the height h is variable, but identical for two coils located at equal distances from axis 3 (Fig. 2). The dimensions of the rectangular conductors may be determined for a given field strength by programming a computer to determine a rectangular conductor arrangement from multi-poles; the dimensions being varied to compensate or eliminate undesirable field variations and the field homogeneity being improved by successive iteration (Fig. 3, not shown). Each coil element 11 (Fig. 4a) is wound in rectangular form, and bent at right angles along lines 12, 13 to form a coil with winding ends 14 at right angles to the magnet axis (Fig. 4b). The individual coils 11 are assembled into the dipolar construction of Fig. 5. Their rectangular cross - sections have graduated heights and uniform widths, and are spaced apart at graduated distances along the major axis of an ellipse, to develop a homogeneous dipolar or quadrupolar field along an axial crosssectional area.
Patent GB-1167834-A (GB)
Title: A Material for a Sliding Contact Bearing.
Inventor: KOEPKE GUENTER
IPC: C08K3/22
Filed: 1968-03-18
Abstract: 1,167,834. Bearings. KARL SCHMIDT G.m.b.H. 18 March, 1968 [16 May, 1967], No. 13052/68. Heading F2A. [Also in Division C3] A bearing, wherein the bearing comprises a backing layer and a sliding layer, and wherein the sliding layer comprises polytetrafluoroethylene with 2 to 8% by volume based on the volume of the sliding layer of lead monoxide, alone or in admixture with lead sulphide. The backing layer may comprise steel having a porous layer of tin bronze sintered thereon, the sliding layer lying in the bronze layer.
Patent GB-437611-A (GB)
Title: An apparatus for igniting gas from gas taps
IPC: H01H3/02
Filed: 1934-05-01
Abstract: 437,611. Electrically-igniting gas burners. HISCOX, L. T., 4, Alpha Road, Hutton, Essex. May 1, 1934, No. 13100. [Class 75 (iii)] In means for igniting a gas burner on opening the gas cock, an arm 4 on the latter is adapted to press inwardly the plunger 12 of a separate switch 6 and thereby close the primary and secondary circuits of an induction coil connected with a spark gap adjacent the burner, the switch being opened by a spring 8 on releasing the cock. The primary circuit is closed by the head of the metal plunger 12 contacting with a terminal P, which is thereby earthed, and the secondary circuit by a metal disc 10 bridging terminals S, S<1>. A single induction coil may be employed to operate a gas cooker and a gas copper or water heater, the switches being connected in parallel. The spark gap may be formed by two electrodes secured to the frame of the cooker or by one electrode co-operating with a peg on the burner. The Provisional Specification describes also a switch for closing the primary circuit of the coil, the secondary winding of which is connected with the spark-gap electrodes, the spring blades of the switch being adapted to turn the cock back sufficiently to open the circuit.
Patent GB-131871-A (GB)
IPC: F16J15/10
Abstract: 131,871. Wallace, C. F., and Tiernan, M. F. Aug. 28, 1918, [Convention date]. Packing, non-metallic.-Packing for valve-stems &c. in apparatus for treating chlorine &c. is composed of asbestos impregnated with an inert material soluble in a volatile liquid and associated with finely divided graphite. To make such a packing, bees-wax is dissolved in carbon tetrachloride, and with this solution cords or ropes of asbestos are saturated. Flake or powdered graphite is incorporated by rubbing &c. with these cords or ropes, which are then dried to form packings. Asbestos fibre may be treated in a similar way.
Patent GB-831966-A (GB)
Title: Improvements in and relating to regenerative heat exchangers
Inventor: LANGE GUENTHER
IPC: F28D19/04
Filed: 1956-04-30
Abstract: 831,966. Regenerators. B.M.W. TRIEBWERKESBAU G.m.b.H. April. 30, 1956, No. 13204/56. Class 64(1) A regenerative heat exchanger has a rotatable matrix 5 comprising annular lamellae which are urged into air-tight sealing contact with each other in the plane of separation 2 between the air and gas passages 3, 4, the free flow passages between the lamellae being maintained by one or more rows of spacing members 11, 12. Tapered rollers 7, at least one of which on each side of the exchanger is resiliently mounted, urge the lamellae into contact with each other as they pass between the passages 3, 4 while rolls 8, 9 seal the inner and outer peripheries of the matrix against leakage losses. The rolls 9 are formed as gears to mesh with teeth on the inner periphery of the lamellae and are driven by shafts which may be connected together. The spacing members 11, 12 may be combined into comb structures at least one of which in each passage 3, 4 extends over the full radial depth of the lamellae for cleaning purposes.
Patent GB-961113-A (GB)
Title: A magazine for holding a stack of cards
IPC: B42F17/08
Filed: 1963-04-03
Abstract: 961,113. Sheet feeding and delivering. MAGNAVOX CO. April 3, 1963, No. 13225/63. Headings B6B and B6H.  A magazine for holding a stack of record cards comprises four side walls 12, 13 joined at one end to a base wall 11, one pair of side walls 13 or portions 15 thereof being resiliently flexible and carrying inwardly directed card retaining lips 31 for restraining a stack 17 of cards urged against the lips by a spring 26 acting against the base 11, the walls 13 or portions 15 thereof being adapted to fit over spaced members of other equipment which serve to spring the flexible walls or portions apart and withdraw the lips 31 so as to permit cards to be withdrawn from or inserted into the magazine. The spring 26 acts on a plate 20 which has lugs 21 engaged in slots in the walls 12, and the spring is located on bosses on the plate 20 and the base 11, respectively. The cards 17 are notched at one side and are registered by a bent lug 80, on one wall 12, engaging in these slots. As shown, flexible portions 15 of the walls 13 have cam extensions 32, 35, respectively, and these are engaged by spaced upstanding elements 36, Fig. 4, on a member 50 fixed at a card withdrawal station, so that the portions 15 are sprung outwardly sufficient to withdraw the lips 31 thereon to allow the bottom card to be urged against lips 56 on the member 50. The bottom card is then withdrawn past the restraining lips 56 by a reciprocating suction plunger 52 and placed on feed belts 46 which travel in grooves 47 transversely of the member 50. The cam extension 35 is extended tc provide a carrier for an index tab, so that magazines can be readily identified when stored in a container. Cards are inserted in the magazine when the latter is inverted against a hopper 65, Fig. 6, having upright spaced elements 37 which engage the cam extensions 32, 35 of the flexible portions of the magazine, and separate these portions sufficiently to allow cards to pass the lips 31, Fig. 2. Cards are inserted by a manually operable plunger 75 acting against the action of the spring-urged plate 20.
Patent GB-615611-A (GB)
Title: Process for the manufacture of basic steel of low phosphorus content
IPC: C21C5/28
Filed: 1939-05-03
Abstract: In the manufacture of steel in a Thomas converter, the bath is first blown so as to reduce the phosphorus content to 0.06-0.2 per cent, the slag skimmed off and a second fused basic oxidizing slag added, the converter being raised slightly and then blown, the blast being sufficient only to prevent stopping up of the holes, so that an appreciable stirring of the bath takes place and the slag being made less fluid by applying lime to the surface before tapping.  The second slag may be prepared in a converter or in a slag melting furnace, or it may be a Martin or electric furnace slag which is corrected if necessary by the addition of iron oxides, fluxes and/or lime.  The bath may be carburized before adding the second slag by the addition of cast iron. Specifications 405,633 and 467,378 are referred to.
Patent GB-552269-A (GB)
Title: Improvements relating to control valve arrangements for pneumatically-operated tools
IPC: B25D17/16
Filed: 1941-10-14
Abstract: 552,269. Valves. CLIMAX ROCK DRILL & ENGINEERING WORKS, Ltd., ST. STEPHENS, R. DE H., and McLEMAN, G. A. Oct. 14, 1941, No. 13243. [Class 135] [Also in Group XXIII] A self-contained fitting for use in controlling a compressed air rock drill arranged for wet drilling has the compressed air supply controlled by a valve opened by water pressure when the pressure reaches a pre-determined minimum value. In the form shown in the Figure, the casing A has a compressed air inlet D in line with an axial bore B, an inclined outlet K for the compressed air and inclined inlet and outlet connections L, M for water. A valve member C slidably mounted in the bore B has a chamfered face c<SP>1</SP> adapted to co-operate with a seat a<SP>1</SP> about the inlet D and is formed with a cylindrical enlargement c' adapted to obturate a port a<SP>2</SP> leading to the water outlet M and to provide a shoulder c<SP>7</SP> subject to the pressure in the water inlet L. When the water pressure acting on the shoulder is sufficiently high the valve is moved against an adjustable loading spring E to open both air and water conduits. The valve can be arranged to control the air supply alone in which case the inlet L is connected to the outlet M by a conduit N. The air control valve may be formed with a graduating plug c<SP>6</SP> separated from the valve by a neck c<SP>4</SP> so as to retard the full opening of the valve.
Patent GB-1199504-A (GB)
Title: Electrolytic Removal of Metal.
Inventor: GEMMELL JOHN
IPC: B23H3/04
Filed: 1968-03-19
Abstract: 1,199,504. Electrolytically machining arcuate workpieces. ROLLS-ROYCE Ltd. March 12, 1969 [March 19, 1968], No. 13271/68. Heading C7B. In a method of electrolytically removing metal from an arcuate workpiece 20 using an arcuate or part-annular tool 21, in which the tool is placed adjacent to the workpiece for rotation relative thereto such that a narrow gap exists between the workpiece and the working surface of the tool which is the surface radially outermost with respect to the axis of relative rotation, and electrolyte is directed into said gap whilst effecting relative rotation between the workpiece and tool and making the workpiece electrically positive relative to the tool, the radially outer surface of the tool is, at any given instant of operation, inclined at that instant to the direction of relative rotation at an angle not exceeding 15 degrees, and preferably between “ degrees and 5 degrees. The tool working face 25 may be provided with a series of alternate orifices connected via conduits 27 to an electrolyte supply manifold 26 and apertures connected via conduits 31 to electrolyte exhaust manifold 32. The working face of the tool may be stepped as shown. The method may be used for machining rotor sealing segments for gas turbine engines.
Patent GB-476025-A (GB)
Title: Improvements in or relating to dryers for granular and like materials
IPC: F26B17/24
Filed: 1937-05-10
Abstract: 476,025. Drying-apparatus. FALKENSTEIN, E. May 10, 1937, No. 13305. Convention date, May 11, 1936 [Class 34 (ii)] Granular or like material is dried by being injectec upwardly by a centrifugal mill c into a vertical drying shaft a against a counter. current of hot drying gas introduced from the top of the shaft, a discharge hopper h being provided for dried material. The moist material is fed to the mill from a hopper d. An outlet pipe f is provided with adjustable guide surfaces g whereby the material is guided into the hopper h or hopper d, in accordance with the size and moistness of the particles.
Patent GB-1096028-A (GB)
Title: Improvements in or relating to photo-electron multiplier devices
Inventor: SHARPE JACK
IPC: H01J43/08
Filed: 1964-04-01
Abstract: 1,096,028. Photo multipliers. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 8, 1965 [April 1, 1964], No. 13346/64. Heading H1D. A photo multiplier comprises a plurality of photo-emissive cathodes 4, 5 which are insulated from one another, and respond to light in differing wavelength ranges, which ranges may be completely distinct or may overlap. Any one cathode may be operated at any time to produce photo-electrons which are directed into a common multiplying section 2. As shown two cathodes 4, 5 are inclined towards a window 6 and are separated by an electrostatic screen 8. Alternatively screen 8 may be omitted, the cathode not in use being biased to direct electrons from the other cathode through apertured electrode 7. Also, three or more cathodes may be disposed on a conical surface. The cathodes may be respectively of tungsten and nickel, or of caesium telluride and antimony sensitized with caesium. The window 6 may be curved or formed as a lens, and the boxshaped dynodes 2 may be replaced by slatted dynodes, the slats of adjacent dynodes being oppositely inclined.