baber/WOPTO huggingface dataset:
Patent GB-627161-A (GB)
Title: An improved snap-action switch
IPC: H01H5/18
Filed: 1947-07-10
Abstract: 627,161. Snap-action switches; thermal switches. LANDIS & GYR SOC. ANON. July 10, 1947, No. 18373. Convention date, .July 23, 1946. [Class 38(v)] A snap-action switch has a unitary blade spring with a rigid portion which moves between stops which prevent the blade reaching a stable position beyond the dead centre position. The spring, Fig. 3, has a tongue 14, an outer contact-carrying tongue 13 and a part stiffened by a transverse rib 11 and downwardly bent edges 9, 10, which are extended to overlap the sides of a frame 1, Fig. 1. It also has knife edges 16- 18 which engage in bearings 6, 7 in frame members 1, 3 so as to place in compression and bow the tongue 14. The member 3 is pivoted at 4 to the frame 1 and carries a screw 5 for adjustment of the compression of the tongue. The movement of the stiffened part of the spring blade is limited by a set screw 22 grooved to form abutments 24, 25, which engage the sides of a hole 21 in the blade. When the mechanism is used in a thermal switch of the differential expansion type, the contraction of a tube 31 on a drop in temperature causes the insulating tip 32 of a rod 33 to move upwards, and in bearing on the tongue 14 cause the blade to snap up to close contacts 27, 29. In this position, the tongue 13 is slightly bent, so as to exert pressure on the contacts, and the tongue 14 remains in contact with the tip 32 which may be glass or steatite. The return movement of the spring takes place automatically as the temperature rises. The tongue 13 may be rigid and co-operate with a resiliently mounted " fixed " contact.
Patent GB-1191782-A (GB)
Title: Improvements in or relating to Paper-Insulated Electric Cables Provided with a Protective Corrugated Metal Sheath and Process for their Sheathing
IPC: H01B9/06
Filed: 1968-04-18
Abstract: 1,191,782. Cables. PIRELLI S.p.A. 18 April, 1968 [23 May, 1967], No. 18388/68. Heading H1A. In a cable having a core insulated with paper impregnated with an insulating composition, the ratio Z/P of the sheath corrugations is between <SP>1</SP>/ 25  and <SP>1</SP>/ 15  and the minimum inner diameter of the sheath is greater than the diameter of the core. The cable may be covered with an extruded aluminium sheath under a head of composition thereby preventing the formation of voids.
Patent GB-1501205-A (GB)
Title: Veneers
IPC: B32B21/10
Filed: 1975-05-02
Abstract: 1501205 Laminates HANS FEIERABEND GmbH 2 May 1975 [22 June 1974] 18468/75 Heading B5N A flexible Veneer skin suitable for application to a wooden cabinet consists only of a wood veneer layer adhesively secured directly to hydrolysed cellulose-fibre paper. The veneer layer which may be composed of a plurality of veneers is preferably 0À6 mm thick and the hydrolysed cellulose-fibre paper is preferably 0À2 mm. thick.
Patent GB-659668-A (GB)
Title: An improved combined dish and tray
IPC: A47G19/10
Filed: 1949-07-13
Abstract: 659,668. Dish-tray combination. WAGGONER, O. L. July 13, 1949, No. 18516. [Class 128] In a child's feeding dish-tray combination the tray 2 is elongated and has an upstanding rim 3 with arcuate notches 4 the walls of which tightly engage the elliptical plinth 5 of the round dish 6 when the major axis of the plinth lies between the notches but do not engage the plinth, thus allowing easy removal of the dish, when it is turned so that the minor axis lies between the notches. The walls of the notches may be slightly undercut.
Patent GB-218119-A (GB)
Title: A method of manufacturing powder of lead suboxide intermingled with powder of metallic lead
IPC: C01G21/04
Filed: 1923-07-18
Abstract: Lead suboxide mixed with metallic lead is obtained by placing pieces of metallic lead in a rotatable vessel and introducing an oxidizing gas while rotating the vessel.  The lead may be in the form of balls, and balls of hard material such as steel may be placed in the vessel with them to effect abrasion.  The vessel may be a perforated cylinder mounted on a horizontal axis and provided with a pipe for the supply of the oxidizing gas.  The cylinder may be heat-insulated, and the gaseous current may be utilized for carrying the suboxide through the perforations.  The temperature employed is 60-200 DEG C., the heat being obtained by friction, chemical action or from an outside source such as electric or gas heating.  Specification 176,924 is referred to.  Reference has been directed by the Comptroller to Specifications 198,647 and 215,222.
Patent GB-455057-A (GB)
Title: Improvements in or relating to smoke consuming arrangements for boiler and other furnaces
IPC: F23M3/00
Filed: 1935-06-28
Abstract: 455,057. Firebridges. HUDSON, W. H., 15, Filbert Street, Aylestone Road, Leicester. June 28, 1935, No. 18594. [Class 51 (i)] In a furnace firebridge having an air chamber 1 from which air passes into one or more heating pockets x between the chamber and the front wall 7a of the bridge and then through one or more horizontal passages 6 and out at the rear of the bridge into a chamber or space 10 from which it is discharged upwardly and forwardly into the furnace gases, the horizontal passages are provided with an outlet in the form of a series of holes so that the heated air issues in the form of jets. The space 10 is formed between the rear wall 7b of the bridge and the front of a second bridge or baffle 12 having an inclined deflecting portion 12a at the outlet y from the space. Air passes from the chamber 1 through one or more outlets 9 which direct the air downwardly into the heating pockets which are formed by spaced vertical webs 8 arranged between the chamber and the wall 7a. The heated air rises into the horizontal passages 6 formed between the roof of the chamber the brickwork 7c at the top of the bridge. Perforated plates 11 are provided at the outlets from the passages 6. The chamber may have a damper 18 controlled from the front of the furnace and mav receive air either from a separate pipe 15 or from a forced draught trough 23 beneath the grate 16.
Patent GB-240593-A (GB)
Title: Improvements in and relating to mechanical lubricators for the axle pins of vehicles
IPC: B61F17/22
Filed: 1924-08-05
Abstract: 240,593. Oelwerke Stern-Sonneborn Akt.-Ges., and Duffing, G. Aug. 5, 1924. Lubricant conveyed by mechanical means; straining lubricant.-Lubricant is supplied to a vehicle axle h by a roller a mounted at one end of a forked lever b pivoted at d, the other end of the lever having fixed thereto one end of a leaf spring f of which the other end is adapted to slide on the bottom of a casing c carrying the lubricating device, the arrangement being such that the point of contact g moves to the left or right as the roller a moves up or down, so that the pressure between the roller and the axle is maintained substantially constant. The casing r has strainer holes in its walls, and is pivoted at n, Fig. 3, on a plate e. To insert the device into the axle box, the casing c is rocked down into the horizontal position. Push rods q pivoted to the casing at p strike against the rear wall r of the axle box and cause the casing to be rocked into operative position.
Patent GB-221194-A (GB)
Title: Improvements in means for operating the cages of lifts, hoists and the like
IPC: B66B17/12
Filed: 1924-08-05
Abstract: 221,194. Bulgaris, C. de. Aug. 28, 1923, [Convention date]. Balancing.-Lift cages, carriages of funicular railways, hoists or any heavy body are raised and lowered by varying the extent of the immersion of a counterweight in a tank of water. The hoisting rope 20 of the lift 26 passes over pulleys at the top of the well and is secured to a drum 5 on a shaft 3 mounted in a framework 1. The counterweight 11 is supported by a rope 15 wound on a smaller drum 6 on the shaft 3. The tank 12 is supported by ropes 16, 17 wound on drums 7, 8 on a shaft 2 and is counterbalanced by weights 13, 14 suspended by ropes 18, 19 wound on drums 9, 10 on the same shaft. A rope 21 connected to the controlling mechanism on the lift passes over a pulley 23 and is secured to a large, drum 4 on the shaft 2. The controlling mechanism comprises a lever 37 which when released from the notched segment 38 can be moved in a vertical plane to rotate the pulley 32 to which the rope 21 is attached. The immersion of the counterweight 11 is varied by moving the lever 37 through different angles.
Patent GB-233940-A (GB)
Title: Process and apparatus for dry separation of the elements composing a mass
IPC: B03B4/02
Filed: 1924-08-05
Abstract: 233,940. Sutton, H. M., Steele, W. L., and Steele, E. G. Aug. 5, 1924. Separating by shaking- apparatus; pneumatic separating.-In machines for separating materials bv the combined action of shaking and an upward air current as described in Specifications 17561/05 and 21063/07, the separating table is formed with a series of steps extending across it and decreasing in depth in the direction of the reciprocating movements of the table from the feed side to the delivery side. Fig. 4 shows one construction in which the table is formed in sections of perforated metal, each section comprising a step 20 and riser 10<1> and connected to the adjacent' sections by the interlocking joints 22 as shown. In a modification, the table may be formed in one piece of perforated sheet metal, and in a further modification, the risers may be unperforated. In each form of table, riffles 23, 14 may be provided in line with the risers aud midway of the steps. Fig. 6 shows a cross-section of another construction in which a perforated table 15 is provided with sets of riffles 18, 19, 16. The riffles of each set being of increasing height from the upper to the lower side of the table, and all the riffles decreasing in height in the longitudinal direction.
Patent GB-1437811-A (GB)
Title: Absorption of catalyst poisons
IPC: H01M10/52
Filed: 1973-04-18
Abstract: 1437811 Catalyst poison absorber ACCUMULATORENWERK HOPPECKE CARL ZOELLNER & SOHN 18 April 1973 [2 Aug 1972] 18638/73 Heading C1A [Also in Division B1] An absorber for removing the catalyst poisons stibine and arsine from the explosive gas mixtures produced during the operation of a lead/ acid accumulator cell comprises at least one heavy metal manganite (preferably copper manganite) in association with a carrier (preferably an alugel). The absorber may be prepared by heating the carrier material in a solution of a salt of a heavy metal and of a salt of manganese, mixing the solution and carrier with a solution of a carbonate whereby the carbonates of the heavy metal and of managanese are precipitated on the carrier, and washing, drying and calcining the resulting coated carrier. A device in which the absorber may be used is also described (see Division B1).
Patent GB-153358-A (GB)
Title: Improvements in pianoforte construction
IPC: G10C1/00
Filed: 1919-07-28
Abstract: 153,358. Stevens, H. R. July 28, 1919. Pianoforte actions; cases; framing; keys and keyboards; pedals; soundboards; strings, arrangement of.-A pianoforte of light construction has a keyboard of typewriter pattern and the strings arranged in a semicircle or polygon about it. Fig. 1 is a front elevation of the instrument. Fig. 6 shows the string tension frame. There are two rows of white and two of black keys and plates N, N<1> for the loud and soft actions operating the dampers. Figs. 2 and 3 show alternative key actions termed respectively overslung and slide. The overslung action comprises digit arms g<1> pivoted on the fulcrum P, hammers J and arms J<1> pivoted on the pieces d<12> supported by the carriage D<2> and cords j<4> connecting the hammer arms with the digit arms and led over pulleys k, k<1>, k<2>. The fulcrum carriage D<2> is dispensed with in the slide action; the hammer arm is pivoted at the fulcrum H with the slide pieces j and g<4> fitting loosely together, movement being limited by the pin j<2>. The damper actions are of similar construction. The loud plate N withdraws a serrated felt strip on the bar O from contact with the strings, and the soft plate N' lifts a felt strip on the bar O<1> on to the strings. The plates may be retained in their depressed position by spring catches N<4>, N<5>. The base A has orifices a, a<1>, a<2>, a<3> supporting the action pivots. The tension frame with shelves D, D<1>, hammer fulcrum carriage D<2> and pegs F, F<1>, F<2>, F<3>, &c. is affixed to the base A and to the vulcanite or light wood back by supports d<3> - - d<11>, The body piece B has a dome-shaped top surmounted by a sounding board or vellum drum C, or a megaphone horn may be used. Slots A<7>, A<8> on the sides of the base are designed to receive the supports of an automatic player.
Patent GB-201901-A (GB)
IPC: F23L17/16
Filed: 1923-07-19
Abstract: 201,901. Soc. Rateau. Aug. 2, 1922, [Convention date]. Blast apparatus. - In a locomotive or like engine in which the exhaust is utilized to drive one or more turbines c, c<1> on the same shaft as the fan or fans for exhausting the gases from the smoke-box e and delivering them to the stack g, the steam from the turb i n e as it leaves the turbine blades comes into direct contact and exhausts in a direction parallel with the smoke expelled by the fan. Exhaust steam is admitted at a, a<1> to the blades b, b<1> of the rotors c, c<1>. Gases from the smokebox enter the fan casing through the intakes d, d<1> and are discharged at f to the stack. If desired, live steam may be supplied to the rotor c' at a', or separate distributors for live and exhaust steam may be provided for each rotor.
Patent GB-531095-A (GB)
Title: Shaft collars
IPC: F16D1/08
Filed: 1939-06-27
Abstract: 531,095. Shaft collars. DALRYMPLE, F. H. June 27, 1939, No. 18721. [Class 80 (ii)] A shaft collar is built up of at least one plate 1 with a bore to receive the shaft, and having circumferentially-spaced blocks 2 secured thereto as by welding at 3, the blocks being threaded to receive screws 5 for securing the collar to the shaft. The blocks 2 may have line contact with the shaft, or may be curved to bear thereon, or they may be constituted by standard square nuts, in which case the headed screws 5 are replaced by set-screws with socketed outer ends. The plates 1 may be formed with abutting flanges on the inner or outer peripheries, or both. Fig. 20, shows a split collar formed of spaced half-plates 55, 56 connected together by the blocks 57 for receiving the screws 59, the two halves being held on to the shaft by a screw 63 passing through a hole in a block 62 on one half, and screwing into a corresponding block 60 on the other half; or the blocks 60, 62 may be arranged at different radii so as to take a radial screw when fitted together.
Patent GB-529762-A (GB)
Title: Improvements in tuyeres for furnaces provided with mechanical stokers
IPC: F23K3/14
Filed: 1939-06-28
Abstract: 529,762. Tuyeres for furnaces with mechanical stokers. CHILLINGTON TOOL CO., Ltd., and THOMAS, B. June 28, 1939, No. 18775. [Class 51 (i) ] In an underfeed stoker in which the fuel bed supplied with fuel by a screw conveyer C is surrounded by a blast box B, the blast box is surmounted by four tuyere blocks D which are L-shape in plan and arranged at the corners of the blast box with their ends abutting adjacent tuyere blocks preferably at the middle of the sides and ends. Air passes from the blast box B into the passages d<SP>3</SP> within the tuyere blocks and is discharged through openings d<SP>4</SP>, d<SP>5</SP>. Strengthening fins d<SP>2</SP> are provided on the tuyere blocks.
Patent GB-1414756-A (GB)
Title: Derivatives of secalonic acid d
IPC: A61K31/35
Filed: 1974-04-29
Abstract: 1414756 Derivative of secalonic acid D ASAHI KASEI KOGYO KK 29 April 1974 [9 May 1973] 18775/74 Heading C2C Novel compounds of formulae are prepared by reaction of secalonic acid D with 2,3-dihydrofuran and 2,3-dihydro-4H pyran. Pharmaceutical compositions in conventional forms and having anti-turnover activity comprise an above novel compound and a diluent. The invention also relates to treating tumours in mice using the novel compounds.
Patent GB-120296-A (GB)
Title: Improvements in Toy Boats.
Inventor: LAPPIN FREDERICK ADOLPHUS
IPC: A63H23/06
Filed: 1917-12-18
Abstract: 120,296. Lappin, F. A. Dec. 18, 1917. Boats.-A toy boat is propelled by heating the bends or junctions of one or more lengths of metal tubing b which are bent intermediately of their ends into substantially U-shape. The limbs of the tubing are disposed longitudinally within the hull a of the boat, and their free ends b<2> project through the stern of the boat below the surface of the water. As shown, the two branches of the tubing may be connected by a coiled portion b<1>. A small lamp &c. is used for heating the coiled portion b' of the tube b.
Patent GB-1473233-A (GB)
Title: Gauging method and apparatus
IPC: G01N33/34
Filed: 1974-04-29
Abstract: 1473233 Measuring opacity of paper photoelectrically INDUSTRIAL NUCLEONICS CORP 29 April 1974 [9 May 1973] 18812/74 Heading G1A The visual opacity of a moving paper web is measured by photo-electrically sensing the transmissivity of the web and modifying the detector response in accordance with the reflectivity of the paper so that the opacity measurement is substantially independent of compositional variations, the modified response being correlated with calibration values of visual opacity. A photo-electric gauge is mounted on a traversing mechanism which can be moved back and forth transverse to the web direction of motion, Fig. 1 (not shown) and to an off-web position for standardization. The gauge may be, for example, of the form shown in Fig. 2. Low voltage D.C. lamp 34 is mounted in internally blackened housing and the beam is collimated by lens 38. The web 10 is sucked against steel surface 40 by vacuum pump 48 which also removes particles of foreign matter. Light passing through the web reaches an opal glass plate 60 which acts as a 0À5 semi-reflector, so that half the incident light is transmitted through it, while the other half is reflected back on to the underside of the web 10 to be reflected back again towards the plate 60. In this way an extra component of the light beam represents the reflectivity of the web. The light passed by plate 60 is directed by a gold-lined plastics tube 76 through a band pass filter 74 which passes only visible light. The detector 62 is a silicon photovoltaic cell having connector straps 64 and is mounted in a temperature control oven 66 behind a glass window 72. Zero standardization of the detector e.g. for dark current is carried out with shutter 80 blocking light reaching the photo-cell. The detector circuit, Fig. 3 (not shown), includes a electrometer and buffer amplifier, followed by a calibration amplifier and recorder. To deal with exceptional variations in reflectivity and/or opacity, the apparatus can be adapted so that the detector window 60 has a variable degree of reflectivity. In one arrangement, Fig. 7 (not shown) a plurality of different semireflectors are mounted in a turret-wheel. In another arrangement, the window 60 is substituted by a plain glass window beneath which is mounted a partial reflector, the distance of which from the window is adjustable. The particle reflector may alternatively be an array of transparent and reflective elements e.g. a mirror with a plurality of drilled holes. In an alternative embodiment, Fig. 9, separate detectors are used to measure transmitted and reflected light. Light from source 34 illuminates an integrating sphere. Light transmitted by the web is detected by detector 62 mounted in a black cavity and that reflected by the web by detector 130 mounted in the integrating sphere. The detector outputs are combined in a computer which may be of the form described with reference to Fig. 11 or Fig. 12 (not shown). A theoretical discussion of the compensation for reflectivity is given.
Patent GB-1110058-A (GB)
Title: Improvements in or relating to electrical connections and to an improved anode-cableconnection
IPC: C23F13/02
Filed: 1965-05-05
Abstract: 1,110,058. Connecting-pieces for anodes. UNION CARBIDE CORPORATION. 5 May, 1965 [2 June, 1964], No. 18880/65. Heading H2E. A cable 10 to be connected to a graphite anode 22 is brazed to a copper, silver or copperplated steel spike 16 which is then forced with an interference fit into the end of a channel drilled in the anode. A polyethylene sleeve 26, placed over the cable insulation, is fitted into the open end of the channel and polyethylene is then forced through a communicating channel 32 into the space surrounding the stripped end of the cable so as to form a seal.
Patent GB-477757-A (GB)
Title: Improvements in and relating to generators for saw-toothed oscillations
IPC: H01J43/30
Filed: 1937-07-07
Abstract: 477,757. Valve generating circuits; electron multipliers. BRITISH THOMSON-HOUSTON CO., Ltd. July 7, 1937, No. 18932. Convention date, July 24, 1936. [Classes 39 (i) and 40 (v)] The rapid discharge of the condenser of a relaxation oscillator is effected by an electron multiplier. As shown in Fig. 1, the multiplier is of the form comprising a number of spaced secondary-emission electrodes 1 ... 4 in one plane, with intermediate electrodes 5 .. 7 in a parallel plane. The condenser 11 is charged from a battery 10 through a resistance 12 and is discharged through the electron path between the electrodes 3, 4. The electron stream 1 .. 4 is started by the impact of a cathode ray 20 on the electrode 1. The ray normally strikes the walls of a chamber 19, but when suitably deflected by the plates 17, 18 it passes through a hole in these walls and strikes the electrode 1. This occurs when the voltage on the condenser 11 has reached a desired value, one plate of the condenser being connected through the polarizing batteries 8, 9 to one deflecting-plate 17 and the other deflecting-plate being connected to a tapping on a resistance across the battery 10. As soon as the condenser has discharged, the ray 20 resumes its normal direction. The electrodes 1 ... 4 may be arranged as a regular polygon around a smaller number of plates 5 .. 7 also polygonally arranged, Fig. 2 (not shown). The primary beam may enter through an aperture in one of the electrodes. Instead of employing a cathode-ray tube as the source of the primary electron beam, the electrode 1 may form the anode of a thermionic valve, the grid of which is associated with the condenser 11 in such a way as to initiate a discharge through the valve when the condenser reaches a desired voltage. The electron multiplier may be of the to-and-fro type, Fig. 4, in which the multiplier plates 22, 23 are primed by an alternating voltage applied through a transformer 24. The condenser 11 of the relaxation oscillator is connected between the centre point of the transformer secondary coil and the ring anode 21. The multiplying effect starts suddenly when the anode 21 reaches a certain voltage, and ceases at a lower voltage. The discharges may be synchronized with an external source connected to the transformer 27, the secondary of which is connected to electrodes 25, 26 symmetrically disposed between the anode 21 and the multiplier plates 22, 23. The relaxation oscillation may be used for deflecting the beam of a cathode-ray tube of the kind in which the beam originates in an electron multiplier of the to-and-fro type. If the condenser 11 of the relaxation oscillator is discharged through an electron-multiplier of the same type, the same alternating-source 24 may be used for the two multipliers.