baber/WOPTO huggingface dataset:
Patent GB-916172-A (GB)
Title: Improvements in methods of and apparatus for the production of refractory containers
IPC: B22C13/08
Filed: 1959-05-04
Abstract: 916,172. Moulding containers from suspensions of refractory fibres &c. EDNELL, D. F. May 4, 1959 [May 23, 1958], No. 15271/59. Class 87(2). A refractory container, e.g. a mould for casting metals, is formed on a permeable mould by immersing it in a suspension comprising refractory fibres, a binder, and possibly finely ground refractory material, and applying pressure to the suspension. A container 1 having an airtight lid 1a is partly filled with the suspension, a permeable mould 5 is lowered into it by means of rod 4, and air pressure is then applied through pipe 3. When a sufficient layer has been built up on the mould it is raised above the liquid level so that the water in the mould is expelled by air pressure through a tube 7. The lid la and the mould 5 are then removed and the mould placed in a cup-like member 11, Fig. 2 (not shown), so that the outer face of the refractory layer is smoothed. Compressed air is then applied to conduit 6 to remove the said layer and the lid and mould 5 are replaced in the Fig. position. The refractory layer is then dried and heated to incondescence to produce a metal casting mould.
Patent GB-572940-A (GB)
Title: Improvements in swivelling bladed adjustable pitch propellers
IPC: B63H3/02
Filed: 1943-09-20
Abstract: 572,940. Variable-pitch propellers. ENGLISH ELECTRIC CO., Ltd., and SEEWER, P. W. Sept. 20, 1943, No. 15399. [Class 114] In a variable-pitch propeller with one or more pairs of diametrically opposite blades 1, 10, the blade 1 is screwed into a hollow spindle 3 containing a needle-type roller bearing 14 to support a shaft portion 13 of the blade 10 which is screwed into a hollow spindle 12 containing a needle-type roller bearing 22 to support the inner end of the hollow spindle 3. The spindles 3, 13 are also journalled in needle-type roller bearings 5, 16 and in tapered-roller radial-thrust bearings 26, and they are.formed with flanges 25 with bevel teeth 27 for engagement with a driving pinion 28 on the end of a pitch-changing shaft 29.
Patent GB-406893-A (GB)
Title: Improvements in or relating to artificial flowers for decorating purposes
IPC: A41G1/00
Filed: 1933-05-29
Abstract: Artificial flowers, leaves &c. made of rice wafer or like edible absorbent material for use in decorating cakes, crackers, Easter eggs &c. have their surfaces or edges tinted or shaded by applying a powder of a metal such as gold or silver or mica powder by means of terebene, wood alcohol, lac solution or tragacanth or like gum solution.  The metal powder is preferably applied mixed with the liquid by brushing or spraying on.  The mica powder is dusted or sprayed on the article which has first been dipped in the gum solution.
Patent GB-685155-A (GB)
Title: Improvements in or relating to rail joints
IPC: E01B11/24
Filed: 1950-08-21
Abstract: 685,155. Rail joints. BROGDEN, A. N. June 21, 1951. [Aug. 21, 1950] No. 15448/50. Class 104 (ii). A lap rail joint has fish plates ti offset or staggered in relation to each other so that each fish plate 6 extends an equal distance on each side of its adjacent rail gap 7. Two bolts S passing through the lapped rail portion are common to both fish plates (i whilst the outer ends of each fish plate 6 are held by two bolts 8a. Protection plates 9 may be provided to prevent the bolts 8a damaging the rail webs.
Patent GB-566886-A (GB)
Title: Improvements in or relating to lubricating greases
Filed: 1942-11-03
Abstract: 566,886. Lubricating greases. STANDARD OIL DEVELOPMENT CO. Nov. 3, 1942, No. 15472. Convention date, Oct. 11, 1941. [Class 91] A water-insoluble, temperature stable, preferably anhydrous, reversible grease comprises a mixture of mineral lubricating oil and a non- basic barium soap formed by the reaction between a. barium salt and a fatty acid. The proportion of the soap in the finished compositions ranges from 5 to 50 per cent by weight. The mineral lubricating oil is generally a base oil of viscosity 35 to 220 at 210‹ F. S.U.V., and preferably of viscosity 100 to 2400 at 100‹ F. S.U.V. ; a low cold test Coastal type lubricating oil is specified. The soap may be prepared from the usual fatty acids, including fatty acids split from hydrogenated fish oils, such acids having at least 9 carbon atoms to the molecule. The soap is preferably made by using a more active hydrated barium oxide obtained by reacting barium oxide and water in an inert atmosphere, such as in the presence of a mineral lubricating oil. The soap may be prepared separately before compounding, or the fatty acid may be mixed with the mineral oil and then saponified, the hydrated barium oxide being in stoichiometrical or slightly less proportions. The compositions may contain other additives, such as anti-oxidants.
Patent GB-1067291-A (GB)
Title: Improvements in and relating to cyclotrons
IPC: H05H13/00
Filed: 1964-04-15
Abstract: 1,067,291. Cyclic particle accelerators. PHILIPS GLOEILAMPENFABRIEKEN N.V. April 15, 1964 [April 18, 1963], No. 15585/64. Heading H1D. An isochronous cyclotron-in which the magnetic field varies periodically with azimuth, and has a mean flux density which increases in the outward radial direction, the percentage radial increase being less the smaller the e/m of the particles required to be accelerated-is operable at either one of two different values of magnetic flux, for the acceleration of particles having either one of two different values of e/m, respectively, the polepieces being composed of an equal number of alternately high and low segments, the high segments being provided with holes and/or the low segments with ridges such that, when the cyclotron is operated at the higher of the two flux values, magnetic saturation provides the required reduction in the percentage radial increase of mean flux density, whereby the use of additional adjustment coils for this purpose is avoided. The cyclotron has an H.F. supply providing the two frequencies required, respectively, for operation at the lower and the higher flux values. Data is given concerning a cyclotron arranged to accelerate protons when operated at the lower flux value, and deuterons or α-particles at the higher value.
Patent GB-994171-A (GB)
Title: Improvements relating to methods of and apparatus for the detection of flaws in members of elongated form
IPC: G01N27/90
Filed: 1960-05-04
Abstract: 994,171. Detecting flaws in metal. D. KARO. Aug. 4, 1961 [May 4, 1960; Jan. 18, 1961], Nos. 15658/60 and 1988/61. Heading G1N. In a method and apparatus for detecting flaws, in an elongated member 10 such as a cable wire, rope, tube or rod in which the member is magnetized longitudinally and a signal is generated by the movement of the member relative to the field, the output of the pick up arrangement is applied to means responsive to a selected frequency or amplitude, or to a combination of these factors in order to discriminate against changes in permeability and dimension. In the arrangement Fig. 1 (prove) the energizing coils 14, 15 which are used also as detecting coils are connected with resistors R 1  R 2  in a.D.C. bridge and impulses resulting from the leading and trailing edges of flux changes arising from the passage of flaws are selected by wave analyser, and rectifier and filter units 16, 17 and recorded on a recorder 20 driven in synchronism with the passage of the member. A similar arrangement described with reference to Fig. 1 (complete) (not shown) includes a transformer having a characteristic as described with reference to Fig. 13 (not shown) whereby signal pulses within a predetermined amplitude range only, are efficiently passed. The energizing and delecting coils may be provided with yokes to complete the magnetic circuit which yokes may be divisible through the aperture for the passage of the member. A hinged arrangement may be used. The turns of the coils may be arranged to lay in a plane at right angles to the axis of the member, or may be in planes parallel to or at right angles to the lay of strands in a cable under test. A single coil may be divisible along a diametral plane by plugs and sockets at each end of the diameter or half coils for assembly around the periphery as in Fig. 2, may be used. Recessed circular yokes having a single recess or two recesses for the energizing and/or detection coils are described with reference to Figs. 7 and 9 (not shown) and magnetization by permanent magnets is also referred to. Magnetic anomalies may be detected by toroidal coils which may be on a rigid core or wound on a flexible material which is subsequently bent into segmental form.
Patent GB-612302-A (GB)
Title: An improved electrical insulating compound
IPC: H01B3/20
Filed: 1946-05-23
Abstract: An electrically-insulating composition which is pourable when hot and very viscous when cooled comprises mineral oil, solid polyethylene in an amount not less than 1/2 per cent and less than 5 per cent by weight of the composition, and a rubbery p  hydrocarbon soluble in the mineral oil and present in an amount at least sufficient to inhibit crystallization of the polyethylene on cooling.  Suitable rubbery hydrocarbons are natural rubber, polymerized butadiene, butadiene-styrene copolymers and polybutylene.  Naphthene base oil is specified as a suitable mineral oil.  Fillers such as silica may be added.
Patent GB-1450291-A (GB)
Title: Polymeric masterbatch compositions
IPC: C08K5/00
Filed: 1974-04-09
Abstract: 1450291 Flame-retardant masterbatch compositions STEETLEY (MFG) Ltd 1 April 1975 [9 April 1974] 15722/74 Heading C3P Masterbatch compositions comprise (1) a flame retardant and (2) a synthetic elastomeric polymer in a weight ratio greater than 4 to 1. The elastomeric polymer may be an ethylene/ propylene copolymer or terpolymer rubber, SBS rubber, nitrile rubber, butyl rubber, silicone rubber or ethylene/vinyl acetate copolymer, and may be in admixture with a non-elastomeric polymer, e.g. polystyrene, ABS, polyolefins, and unsaturated polyesters. The elastomeric polymer may be cross-linked after mixing to reduce volatilization of the flame retardant. Preferred flame retardants do not melt below the processing temperature of the polymer. Examples describe the incorporation in ABS resin, polyethylene, polypropylene and polystyrene of masterbatches of decabromodiphenyl, hexabromobenzene, tris - (pentabromophenyl) phosphate, pentabromophenyl allyl ether, perchloropentacyclodecane and antimony trioxide in ethylene/propylene rubber, ethylene/vinyl acetate copolymer and butyl rubber.
Patent GB-359578-A (GB)
Title: Totalisator odds calculator
IPC: G06G1/00
Filed: 1931-02-23
Abstract: 359,578. Slide-rules. BEDDINGTON, T. A. H., 47, Mount Street, Grosvenor Square, London. Feb. 23, 1931, No. 15734/30. [Class 106 (i).] A circular slide-rule for totalizator calculations comprises a fixed outer scale a denoting totals and a rotarv disc bearing a reversed scale d of amounts won and a further reversed scale of odds. The index p is so positioned on the disc as to allow for the percentage deductions from the pool.
Patent GB-111109-A (GB)
Title: Improvements in and relating to Motion Picture Cameras.
Inventor: GOLDEN JOSEPH AARON
IPC: G03B23/08
Filed: 1917-10-29
Abstract: 111,109. Golden, J. A. Nov. 4, 1916, [Convention date]. Kinematograph apparatus.- In a kinematograph camera of the type in which the pictures are taken in columns on a standard roll film, the film is mounted on a carrier which is reciprocated with a step by step motion, and is fed relatively to the carrier bv a spring mechanism controlled by an escapement operated by the means for reciprocating the carrier; the camera is applicable also as a projection apparatus. Fig. 2 shows a plan of the mechanism, and Fig. 1 shows a section on the line 1-1 of Fig. 2. The carrier comprises a plate 2 sliding in guides 3 in a yoke 1, and is operated by a handle on a shaft 12 through a Geneva mechanism 13. 14 carried by the yoke and moving substantially in the plane of travel of the carrier. The star wheel 14 of the Geneva mechanism carries a pinion 15 which engages a rectangular rack 16 forming pa.rt of a cam plate having a substantially rectangular track 17. The cam plate has a slot engaging a V-shaped guide 18 fixed on the carrier so that the cam plate and carrier move together vertically but relative horizontal movement between them is possible at the ends of each vertical movement, the pinion 15 at these times operating on the ends 21 of the rack 16. The film spools are mounted in plates 29, 30 secured to the plate 2, and the take-up spool is rotated through wheels 42, 43 by a clock spring during the horizontal movements of the cam plate. The film passes from the feed spool 31 between a drum 33 carrying an escapement wheel and a drum 36 pressed against the drum 33 by means of a spring. and then passes over an exposure slot 5 in a rib 4 carried by the plate 2 to the take-up spool. The escapement wheel has pins 56 alternately placed on its upper and lower surface and engaged respectively by the arms of a pawl 55 secured to lever arms 58, 59. A pin 60 on the cam plate 17 pushes one or other of the arms 58, 59 during its horizontal movements so as to release the escapement wheel, a spring 62 engaging an extension 61 of the arms so as to assist their movements and to bring the arm 58 into engagement with a stop 63 or the arm 59 into engagement with a stop 64. Exposures are made through an opening 6, and an opening 7 is provided for a light source for projection purposes. A shutter 11 is operated coutinuously from the pin wheel 13 through toothed wheels 23, 24 and bevel-wheels 26, 27. The takeup spool is held at the lower end by a movable lug which is mounted on a pin on the plate 30 and has a hollow pin engaging a hollow in the end of the spindle of the spool, the lug being held in position by a spring clip having a pin engaging within the hollow pin of the lug.
Patent GB-1181454-A (GB)
Title: Improvements in the Manufacture of Sound-Insulation Material
Inventor: RUDLOFF BERNARD
IPC: D06N5/00
Filed: 1967-04-06
Abstract: 1,181,454. Coated felts. B. RUDLOFF. 6 April, 1967 [23 May, 1966], No. 15783/67. Heading B2E. [Also in Division B5] A process for the continuous manufacture of sound-insulation material comprises charging a layer of nonwoven material with two different powdered resins having different melting points, one having a melting point at 60‹C., and the other having a melting point between 130‹ and 140‹C; baking the charged nonwoven material to impart mechanical strength to it by fusing of the first resin; applying a coating of 0.5 to 1 mm in thickness of a rubber or bituminious or plastics thermofusible material to the non- woven material; tunnel drying the material at 60‹C; and rolling or cutting to size the material so formed. The material may subsequently be affixed to a surface to be soundproofed by applying the material to the surface and baking at 130-140‹C for 20-30 minutes to fuse the second resin and bond the material to the surface. In carrying out the method a felt is charged with powdered esterified colophonyl having a melting point of 60‹C and with powdered p.v.c., or polyethylene having a melting point of 130- 140‹C and is heated at 60‹C for 4 minutes to fuse the first resin. The agglomorated felt so formed is unwound from a roller R and passes between pairs of rollers A, A', B, B', C. C' the lower ones of which apply to the felt a coating of bitumen, rubber, or p.v.c. from a tank D which may be heated. The coating material may contain high density materials such as barium sulphate or asbestos. The coated felt is then dried in a tunnel S (not shown) at 60‹C. In alternative embodiments the felt is coated on its upper face only by reverse roller coating, or on its upper face by spraying and its lower face by rollers, or on both faces at once by immersion. The materials may be used in soundproof vehicles or buildings, and may be air-permeable or liquid proof.
Patent GB-221862-A (GB)
Title: Improvements in or relating to telephone earpieces
IPC: H04R7/22
Filed: 1923-06-18
Abstract: 221,862. Wace, J. June 18, 1923. Earpiece attachments.-In a telephone earpiece, of the kind having an inflatable rubber cushion, the cushion comprises an outer ring h' of solid rubber and a thin rubber inner portion forming a dished recess for the ear. The cushion is mounted or formed on a backing d of rubbered canvas &c., which is secured adhesively to the removable cap e of the earpiece. An inflating valve f is carried on the outer ring b<1>. Alternatively to the valve, a tube with a tap may be provided. In a telephone head set, both cushions may be interconnected so that they may be simultaneously inflated or deflated whilst being worn. The Provisional Specification states that the cushion may be filled with spongy rubber.
Patent GB-276111-A (GB)
Title: Improvements in or relating to photographic projection printing or copying apparatus
IPC: G03B27/36
Filed: 1926-06-23
Abstract: 276,111. Aldis, A. C. W. June 23, 1926. Enlarging and reducing.-In apparatus of the kind in which the camera is vertically adjustable and the lens is maintained in focus by interengagement with a fixed cam, the camera g, Fig. 2, is carried by a bracket h, Figs. 2 and 6, adjustable on two vertical bars c, d, being provided with upper and lower grooved rollers i, j engaging opposite sides of the bar d and two opposite flat rollers k, l engaging the bar c. The roller l is mounted on a pivoted angle bracket m and maintained in contact with the bar c by a counterweight g which counterbal'ances the camera and is connected to the bracket m by a band n passing over pulleys o. The lens carrier s is slidably mounted on the bracket h by rollers v which engage straight edges on a bar u, and stop members w retain the rollers on the bar. The lens is independently counterweighted by a weighted handle 4, Fig. 3, on the angle lever x which controls the relative movement of the camera and lens. The lever x is pivoted on the bracket h one arm having a roller 2 engaging a slotted cam plate f mounted on a third vertical bar b, the other arm having a roller y engaging a horizontal guide-way z on the lens bracket s. The portion 12 of the cam slot controls the lens for enlargements and the portion 13 for reductions. These portions branch from a central vertical portion 3, and to provide for a range of lenses a number of specially shaped slots may branch off from the central portion 3. The adjustment for different ratios of reproduction can be made by moving the camera itself, but when the roller 2 comes into a more horizontal portion of the cam slot adjustment can be effected either by the hand lever 4, Fig. 3, or by a worm 7 which can be brought into engagement with a sector 6 on the angle lever x. The camera counterweight q slides on uprights r, and springs 11 are provided to buffer any shock on reaching the upper end. The vertical bars b, c, d and guides r are mounted on a base a and strutted by stays e.
Patent GB-458568-A (GB)
Title: Improvements in air preheaters for furnace doors
IPC: F23M7/00
Filed: 1936-06-05
Abstract: 458,568. Doors. BOFFO, L., 9, Rue Jacques Dulud, Neuilly - sur - Seine, France. June 5, 1936, No. 15831. [Class 51 (i)] An air preheating chamber 1 is provided on the inside of a furnace door 2 and is formed integral therewith or removably secured thereto, the bottom of the chamber being provided with perforations 6 for the distribution of air entering the chamber through the inlet 3 over the fire. The chamber is provided with at least one vertical partition 8 extending from the inlet to a point short of the rear wall of the chamber which is also perforated at 7. When two or more vertical partitions are employed they may be inclined to one another so as to converge towards a point at or near the inlet 3 and may be separate or integral. The chamber 1 may be provided with recesses to enable it to clear downwardly projecting tubes which in some boilers extend into the space immediately behind the furnace opening.
Patent GB-962032-A (GB)
Title: Improvements in or relating to magnetic tape recording and reproducing systems
IPC: G11B15/14
Filed: 1962-04-25
Abstract: 962, 032. Automatic speed control. AMPEX CORPORATION. April 25,1962 [May 29, 1961], No. 15852/62. Heading G3R. [Also in Division H3] In a magnetic tape recording and reproducing apparatus having drum mounted transducers revolving transversely to the tape, for television or other wide band signals, a pilot reference signal is recorded with the information signal and a separate timing code pattern is recorded longitudinally by a stationary head; during recording the speed of the transducer drum and the tape capstan are not precisely controlled, but for reproduction the drum motor is controlled in response to the pilot signal, the capstan in accordance with the longitudinal timing pattern and in addition the output signal is passed through a variable delay line controlled by the pilot signal (see Division H3). The information signal is frequency modulated and may be the sum of data from three sources; the pilot signal is at a lower frequency. The longitudinal timing pattern is produced by a magnetic or photo-electric pulse generator coupled to the transducer drum. During reproduction, the drum motor 62 is controlled by adjusting the frequency and phase angle of a supply from a variable oscillator 85 in response to the phase difference between the pilot signal, filtered out at 34, and a stable reference oscillator 20. This This oscillator may, in fact, be slightly varied by signals from the delay line. Similarly, the capstan motor 63 is controlled by adjusting the frequency and phase angle of a supply from variable oscillator 85<SP>1</SP> in response to phase errors between the longitudinal timing signals picked off by head 72 and signals produced by the transducer drum pulse generator 68, 69. Both motor control circuits include filters which discriminate between long and short term phase errors; the former controls the frequency and the latter the phase angle. In both cases, too, a velocity damping term is derived from frequency comparison between each reproduced signal and its reference. A tape guide 60 is adjusted in known manner by an open loop system 92... 94 controlled by the pilot signal to correct for dimensional changes in the tape. Means are provided for switching gradually from one transducer to another and it is stated that the invention may be applied to helical drive tape apparatus. Specification 915,254 is referred to.
Patent GB-1499595-A (GB)
Title: Apparatus for the removal of contamination from the surface of an electrostatic imaging member
IPC: G03G21/00
Filed: 1975-04-17
Abstract: 1499595 Cleaning electro-photographic surfaces XEROX CORP 17 April 1975 [30 April 1974 20 May 1974] 15888/75 Heading G2H Residual toner remaining on photo-conductive surface 12 after transfer of a developed image is removed by longitudinally-reciprocated resilient blade 50, then film contaminant is scrubbed off by a brush 65 or by a cleaning pad. The removed toner may be recirculated by auger 60 and bead chain conveyer 70. The brush rotates at a peripheral speed of from 0À1 to 1À5 feet per second and the pad, if one is used, is biased against the surface with a force of 1 to 4 1b per square inch.