baber/WOPTO huggingface dataset:
Patent GB-237832-A (GB)
Title: Improvements in electric coil-holders
IPC: H01F27/00
Filed: 1925-03-10
Abstract: 237,832. P. & C. Manufacturing Co., Ltd., and Posner, W. March 10, 1925. Wireless tuning-apparatus, adjustment devices for.-In electric coil-holders for wireless apparatus &c. of the kind comprising coil-holding insulating blocks a pivoted side by side on parallel axes, the blocks a are formed with spiral grooves h or ribs engaging arms or projections j on a nut i on an adjusting screw k, rotation of the screw traversing the nut i and rotating two blocks a in opposite directions. Each of the two blocks a may be pivoted at d in two metal brackets e, the four brackets being connected by insulating bars f and rods g. The screw k is carried by bearings in the bars f and is surrounded by a loose insulating sleeve m between one bar and the operating knob l.
Patent GB-268118-A (GB)
Title: Improvements in or relating to thermionic valve holders
IPC: H01R33/76
Filed: 1926-03-09
Abstract: 268,118. Payne, C. J. March 9, 1926. Vacuum tubes. - A valve holder of rubber or other insulating material, has a centre portion 1 and radiating arms 3 with holes in which sockets 4 are secured. The centre portion receives an attachment screw 2, and has a boss 9 to space the holder from a base. Each socket has a contact tab 5, which may engage with a screw thread on the socket, and extends through a slot in the holder; or connection may be made by a tab between the socket and the base or by a screwed shank on the socket. The sockets may be grooved circumferentially and moulded in place, and the rubber may extend over the upper end of the sockets.
Patent GB-1529257-A (GB)
Title: Direction indicating switches
IPC: B60Q1/42
Filed: 1976-02-19
Abstract: 1529257 Direction - indicator cancellers WESTFALISCHE METALL INDUSTRIE KG HUECK & CO 19 Feb 1976 [2 May 1975] 06653/76 Heading G4Q In a direction-indicator switch mechanism the switch member 3 has a spring latch 5 and a latch keeper 4 is arranged on switch housing 1 (5 may be on 1 &c., Fig. 2 (not shown)), a pin 6 is fixed to the steering column, and a unitary resetting device is displaceably mounted on housing 1: that device pivots on a pin 1a and comprises arms 7, 8 provided with respective resetting fingers 9, 10 which can project into the path of pin 6. Auxiliary fingers 11, 12 are formed on respective arms 7, 8 to project into the paths of respective switch cams 13, 14 on switch member 3. Parts 7-12 can be made by injection moulding of a polyacetal. On steering column return after a turn, pin 6 strikes against the outer surface 9a of finger 9, and cam 13- and thereby member 3- are displaced to release the latch. Fracture of any element of the resetting device is avoided by resilient yielding.
Patent GB-1248583-A (GB)
Title: Permeable felts and leather substitutes
Inventor: ALLAN PETER LEWIS
IPC: D04H1/645
Filed: 1968-02-09
Abstract: 1,248,583. Leather substitute: treating textiles. STOREY BROS. & CO. Ltd. 7 Feb., 1969 [9 Feb., 1968], No. 6678/68. Heading D1R. A permeable leather substitute is made by impregnating a textile material with an uncured silicone, curing the silicone, then impregnating the silicone-impregnated material with a liquid dispersion of a natural or synthetic rubber or synthetic plastics which does not adhere to the cured silicone-coated fibres, and airing or fusing the dispersion. The rubber or plastics does not adhere to the silicone coated fibres and provides a large number of minute pores or channels between the mesh of coated fibres and the mesh of cured or fused rubber or plastics thus providing air, gas and water vapour permeability. The textile material can be a knitted, woven, or needled nylon felt fabric. The silicone can be applied to the fabric in an organic solvent containing catalyst and/or curing agents. The liquid dispersion of the second impregnant may contain polyvinyl chloride, an ester plasticiser, barium/zinc stabiliser, pigment, filler and optionally further silicone.
Patent GB-525799-A (GB)
Title: Load limiting flash control systems for electric ranges and the like
IPC: H05B1/02
Filed: 1939-03-01
Abstract: 525,799. Partly electromagnetic switches with thermal action. PROCTOR & SCHWARTZ Inc. March 1, 1939, No. 6713. Convention date, March 7, 1938. [Class 38 (v)] [Also in Group XXXV] In a switching system for electric cooking ranges a switch-lever 6 carrying contacts which change series connections of heating units to parallel connections is actuated by thrust from a solenoid-core 26 and given a snap-action by a dead-centre spring 18. The return movement is effected by a thermostatic bar 21 which bends under heat and forces the spring 18 back across the dead-centre line. Specification 522,930 is referred to.
Patent GB-1557348-A (GB)
Title: Process for increasing the octane number of a light gasolene fraction
IPC: C10G35/085
Filed: 1977-02-17
Abstract: A gasoline (petrol) fraction containing C5- and C6-hydrocarbons and unbranched paraffinic hydrocarbons and comprising more than 10 % by weight of C5-paraffins, more than 10 % by weight of C6-paraffins and more than 90 % by weight of C5- and C6-paraffins and less than 2 % by weight of benzene is brought into contact, at elevated temperature and elevated pressure, in the presence of hydrogen, with a fixed bed of a catalyst containing platinum on a mordenite support material, where the molar ratio A between hydrogen and feed has, with respect to a standard quantity AM, which is defined as follows:  Am = 340.B<0.4>.C<4>.(1 - 3D) DIVIDED 1 + 100 C<4> where B, C and D represent parameters of the composition of the feed, which are defined in Claim 1,  the following relationships:     a) 1.0 >/= A >/= 0.5 if AM is < 2.24;   b) A > 1.0 and AM >/= A >/= 2265.AM<-8.6> if 2.40 >AM >/= 2.24;   c) A > 1.0 and AM >/= A >/= 0.5 AM if AM is >/= 2.40.   In this way, a maximum value for the product of yield of C5+-hydrocarbons and the octane number of these hydrocarbons is achieved.
Patent GB-1205734-A (GB)
Title: Dispenser for rolls of flexible sheet material having structurally rigid internal supporting means
IPC: B65H16/06
Filed: 1969-02-07
Abstract: 1,205,734. Rolled web dispensers. GEORGIA-PACIFIC CORP. 7 Feb., 1969 [9 Feb., 1968], No. 6722/69. Heading A4G. A toilet or paper towel roll 12 formed on a core 14, Fig. 2, having protruding end trunnions 18, 20 is dropped into holder 60 to depress spring arm 66 until the trunnions are supported in U-bearing members 68, 70, the spring pressing the roll against spaced inclined flanges 30, 32, Figs. 1, 2, acting as a brake. When a predetermined amount of paper has been used, trunnion 18 cams down the sloping bottom 28 of bearing 68 and the reduced diameter of the roll is moved axially between flanges 30, 32 until the roll falls into lower container 38 where it continues to be used by itself or used with a fresh roll placed in the bearings. The paper is pulled between rolls 44, 48, 50, 46 and perforated by a cutter between rolls 48, 50. The bearing 68 may have a horizontal bottom in which case the roll is shifted axially by hand to release it. In a further embodiment a frame having side grooves supporting a spare roll resting on the roll being dispensed is covered by a lockable, downwardly and forwardly hinged casing, a separate spring urges the roll axially and prevents upward withdrawal of the roll.
Patent GB-980485-A (GB)
Title: Injection moulding machines
IPC: B29C45/56
Filed: 1961-02-23
Abstract: 980,485. Injection moulding machines. INVENTIONS FINANCE CORPORATION. Feb. 23, 1961 [Feb. 23, 1960], No. 6750/61. Heading B5A. In an injection moulding machine a predetermined back pressure in the cavity of a mould is effective to close a valve member in the injection passage. In one example (Fig. 4) the valye member 200 is biased to the open position by a spring 29 acting through a lever 27 pivoted at 28. When the mould cavity 14 is full, back pressure on the valve head 21 moves it to close the passageway 20. The back pressure necessary to close the valve can be varied by adjusting the spring pressure by means of a bolt 32. Movement of the valve member may be controlled by an adjustable dashpot device comprising a piston 307 connected to the lever 27. The valve member may re-open if the back pressure falls below the predetermined figure, e.g. due to shrinkage of the material in the mould. The machine may be operated so that slight separation of the mould parts occurs before the valve member closes and the material in the mould cavity is then subjected to compression. When the machine is out of use the valve can be permanently closed by tightening a threaded bolt 40 passing through the lever 27. The passageway 20 is connected to the injection chamber 5 by a ring of passages 34 (Fig. 5, not shown). Fig. 6 shows a modification in which the valve comprises three sections 416, 420, 418 of different diameter and is slidable from the open position shown to a closed position when the back pressure exceeds a predetermined amount. The invention can be applied to a machine in which opposed hydraulic rams close the mould and move the injection plunger (Fig. 1, not shown) or to a machine having a mould closed by a ram which also moves the mould and injection cylinder towards a stationary plunger (Fig. 2, not shown). The plunger &c. may alternatively be operated pneumatically or mechanically, and injection may be by a screw.
Patent GB-743595-A (GB)
Title: Improvements in or relating to towel rails
Inventor: PRICE FRANK STANLEY
IPC: A47K10/10
Filed: 1953-03-12
Abstract: 743,595. Towel rails. YOUNGMAN, Ltd., W. C. March 3, 1954 [March 12, 1953], No. 6854/53. Class 52(5). A towel rail 2 is provided with portions of synthetic resin sleeving 8 to prevent slipping. The sleeving is longitudinally ribbed and may be held in place by adhesive or by its own resilience. It may be shrunk on by heating.
Patent GB-788863-A (GB)
Title: Improvements relating to the staining of wood to resemble walnut
IPC: B27K5/02
Filed: 1955-03-09
Abstract: 788,863. Treating wood to imitate walnut. COHEN, S., and MAURICE, P. Feb. 14, 1956 [March 9, 1955], No. 6876/55. Class 140. Tchitola wood or veneers cut therefrom are stained with an aqueous solution of an iron salt whereby the wood assumes the colour of walnut. The staining may be effected by dipping veneers in the iron salt solution and stacking the moist veneers prior to drying to allow penetration of the solution, and, if desired, this may be repeated, stacking the veneers in a position inverted with respect to the first stacking, or the veneers may be immersed in the solution in a chamber under pressure with or without the prior application of vacuum to remove air trapped between the veneers. The iron salts employed may be ferrous sulphate, ferrous ammonium sulphate, ferric sulphate, ferric ammonium sulphate, ferric potassium sulphate, or ferric chloride used singly or in admixture and may contain non-ionic or anionic dispersing agents. If desired, a modified colour may be obtained by treating the stained wood with an acid or acid salt solution to partially reverse the colour change due to staining, either after drying the stained wood or by subsequently adding the acid or acid salt solution to the staining bath.
Patent GB-1215253-A (GB)
Title: Suction cup structures and safety devices for use with cranes and the like
IPC: F16P3/00
Filed: 1969-02-07
Abstract: 1,215,253. Suction lifting devices. HANDELMAATSCHAPPIJ OTHENE N.V. 7 Feb., 1969 [29 April, 1968; 18 Nov., 1968], No. 6876/69. Heading B8H. The suction heads 1, Fig. 1, of a lifting device for large drain pipes 2 have peripheral sealing rings comprising three rings of foam rubber 8, Fig. 3, which are fixed together by impermeable glue and are glued into grooves 7 in the heads. A safety hook 29, Fig. 4, is provided which engages in the ends of the pipes to prevent them being dropped due to loss of vacuum. When a load is to be set down, an actuation valve 28 is operated to allow air to pass through a conduit 41 to the space below a diaphragm 38. This raises the diaphragm and closes the passage 42, 43 by pressing the open end of tube 42 against a valve 49. The vacuum now raises a piston 37 via a conduit 36 and swings the hook 29 to the inoperative position shown in Fig. 4. When another load is to be lifted a valve 30 is placed as shown in Fig. 5 in which position air passes through a valve 27, opened by a spring 39 and levers 44, 45, and through conduit 36 so that the piston 37 is pulled down by the weight of the hook 29. The rate of descent of the hook is controlled by a throttle valve 31 so that the hook does not foul the load as it is being raised. (For Figures see next page)
Patent GB-103242-A (GB)
Title: Improvements in Armoured Aeroplanes.
Inventor: PARKER JOSEPH THOMPSON
IPC: B64D7/02
Filed: 1916-05-16
Abstract: 103,242. Parker, J. T. Feb. 11, 1916, [Convention date]. Ordnance design. - Relates to guns mounted behind hollow propeller shafts of aeroplanes so as to fire therethrough, and consists in making the hole in the propeller shaft of the same diameter as the bore of the gun barrel so as to act as an extension of the same. In the form shown, the muzzle b<1> of the gun b fits into an enlarged end of the hollow propeller shaft a. The hollow shaft may be rifled, but is preferably smooth, contributing by its rotation to spin the projectile.
Patent GB-765908-A (GB)
Title: Improvements in or relating to radial-flow compressors or turbines
IPC: F04D21/00
Filed: 1955-03-10
Abstract: 765,908. Centrifugal compressors; radialflow turbines. GARRETT CORPORATION. March 10, 1955 [March 22, 1954], No. 7049/55. Classes 110 (1) and 110 (3). In a centrifugal compressor or centripetal turbine, the outer edges 12 of the rotor blades 11 are disposed at an angle to the rotor axis 13, and guide vanes 14 have inner edges 15 substantially parallel to the edges 12 and are pivoted about axes 21 which intersect the edges at a location between the limits thereof and preferably at about the mid-length of the edges. The axes 21 are parallel to the axis 13. This construction maintains a substantially constant clearance between the vanes 14 and the blades 11 over a wide range of angular adjustment of the vanes. The inclination of the edges 12 is such that the flow path adjacent the rotor disc 24 is substantially equal in length to that adjacent the casing wall 25.
Patent GB-820818-A (GB)
Title: A pneumatic spring device
Inventor: WALLIS ARTHUR ROGER
IPC: F16F9/02
Filed: 1957-03-04
Abstract: 820,818. Pneumatic springs, WOODHEAD-MONROE Ltd. Dec. 12, 1957 [March 4, 1957], No. 7091/57. Class 108(3) [Also in Group XXIII] A pneumatic or vacuum spring device comprises a cylinder 10, Fig. 1, sealed by cap 11, a piston 13 slidable within the cylinder and an annular seal 14 which allows air to escape from the cylinder as the piston moves towards the closed end but prevents ingress of air when t he piston moves towards the open end of the cylinder, the arrangement being such that when piston 13 contacts cap 11 the cylinder will be substantially completely exhausted of air and will remain so during subsequent relative movement of piston and cylinder so that the device will constitute the equivalent of a spring. The device in Fig. 1 will function as an extension spring whilst the embodiment of Fig. 2 will function as a compression spring. Members 22, 24 seal the end of cylinder 16 and member 23 seals the space between piston 20 and cylinder 16. Hole 19 allows free passage of air in and out of cylinder 16. The invention may be applied to percussive tools (see Group XXIII).
Patent GB-1092124-A (GB)
Title: Photochromatic compositions
IPC: C03C17/28
Filed: 1965-02-18
Abstract: A photochromic material consists of a substitution derivative of 3,3-dimethyl-indoline-2spiro - 31 - naphtho - (Z,1-b) pyrane, the substituents being halogens (specifically chlorine), or -OCH3, -OH, -NO2, -CN, -CF3, alkyl, or aryl radicals.  After U.V. irradiation, these substances show absorption bands near 5900 <\>rA, with response times of 1-10 seconds. The substances may be used in solution, e.g. in hexane, benzene or toluene between two sheets of glass, or may be evaporated from solution with a polymer, to form a film or lacquer.ALSO:Substitution derivatives of 3,3-dimethyl-indoline-2-spiro-31-naphtho-(2,1-b)-pyrane, the substituents being halogens (specifically chlorine), or -OCH3, -OH, -NO2, -CN, -CF3, alkyl or aryl radicals, are prepared in the known manner by action of the appropriate substitution derivative of 3,3-dimethyl-2-methylene-indoline on substituted 1-formyl-2-hydroxy-naphthalene in a tetrahydrofuran medium, in the presence of a small quantity of piperidine.
Patent GB-820464-A (GB)
Title: Improvements in or relating to resetting devices for roller counting mechanisms
IPC: G06M1/34
Filed: 1957-03-04
Abstract: 820,464. Zeroizing mechanism. LANDIS & GYR A.G. March 4, 1957 [March 5, 1956], No. 7124/57. Class 106 (1). The invention relates to a numeral wheel counting mechanism such as a synchronous stop watch in which zeroizing of the numeral wheels 3 is effected by disengaging the transfer pinions 7 which are mounted in a rockable bearing 8, from engagement with the numeral wheels 3 and then rotating the numeral wheels forwardly to zero by means of friction clutches such as springs fixed to the numeral wheels and pressing against the spindle 1. The zero position is defined by stops 4 on each numeral wheel which contact abutment members 5 mounted on the bearing frame 8. Each transfer pinion 7 is adapted to co-operate with a buffer spring 14 secured to the counter housing at one end 13 which is adapted to engage a wide tooth of the associated transfer pinion 7 when the bearing frame 8 is rocked to disengage the transfer pinions. Each transfer pinion is thus adjusted for correct subsequent engagement with its corresponding numeral wheel in so far as it may be partially rotated due for example to a transfer being in progress when zeroizing is effected. Springs 12 damp any motion of the transfer pinions.
Patent GB-675804-A (GB)
Title: Improvements in or relating to a hydrocarbon drying oil
IPC: C08F236/04
Filed: 1950-03-22
Abstract: A hydrocarbon drying-oil is prepared by copolymerizing a mixture of a mono-iso-olefin having not more than eight carbon atoms per molecule, preferably isobutylene, and a conjugated polyolefin having not more than eight carbon atoms per molecule, preferably butadiene-1,3, equal to from 60 to 95 per cent of the combined weight of the mono- and polyolefins, in the presence of a catalyst comprising substantially anhydrous hydrogen fluoride at a temperature of from - 80 DEG  to - 40 DEG  C., and separating the drying-oil from the resultant reaction mixture.  Other mono-iso-olefins which may be used are 2-methylbutene-1, 3-methylbutene-1, 2-ethylbutene-1, 2,3-dimethylbutene-1, 3-methylhexene-1 and 2-methylbutene-2, and other suitable polyolefins are piperylene, isoprene, hexadiene-1,3, 2-methyl-pentadiene-1,3, 4-methylpentadiene-1,3, 2,3-dimethylbutadiene-1,3, 3-methylhexadiene-1,3, hexadiene-2,4 and heptadiene-2,4.  Instead of the iso-olefins, tertiary alkyl fluorides may be employed, which, in a hydrogen-fluoride containing system, may be considered iso-olefin donors.  The temperature is preferably controlled by conducting the reaction in the presence of an internal refrigerant such as propane, butane, methyl chloride, methyl bromide, ethyl chloride, ethyl bromide, perfluorobutane and solid carbon dioxide.  The catalyst is introduced gradually into the reaction mixture, preferably in gaseous form in small quantities as the reaction proceeds. Methods of recovery of the catalyst and of the copolymer product are described.  The copolymers may be further polymerized with alkenyl halides, allyl esters, vinyl esters, vinyl aromatics, acrylates and maleic acid derivatives.
Patent GB-278954-A (GB)
Title: Improvements in or relating to mechanism supports for alarum clocks
IPC: G04B29/00
Filed: 1927-03-15
Abstract: 278,954. Junghans Akt.-Ges., Geb. March 15, 1927. Addition to. 256,574. Clock framework; cases. - A clock mechanism support as in the parent Specification, in which the pillars p stamped up from the support plate w have shoulders a and d for supporting the front and back movement plates c, e respectively, has auxiliary shoulders or tongues b, f<2> which are pressed over to hold the plates c, e in position.
Patent GB-362796-A (GB)
Title: Process for the production of ore coke
IPC: H01M6/08
Filed: 1931-03-09
Abstract: A process for the production of ore coke comprises superficially igniting a damp mixture of finely divided ore, particularly zinc ore, and coking coal on a support permeable to gases such as a Dwight Lloyd sintering apparatus or a sintering pan and subjecting the charge to an up or down blast.  The charge may be ignited by a stationary or travelling furnace or by means of hot gases.  Air low in oxygen is used, for example hot waste gases from the process itself.  If air is used a layer of material to lower the oxygen content of the blast, for example coal, is disposed above or below the charge.  A movable sprinkler may distribute water over the charge to prevent incipient combustion of the coke.
Patent GB-1146261-A (GB)
Title: Improvements in or relating to audiometers
Inventor: WILLIAMSON PETER WRIGHT
IPC: A61B5/12
Filed: 1967-02-15
Abstract: 1,146,261. Audiometers. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 25 Jan., 1968 [15 Feb., 1967], No. 7365/67. Heading A5K [Also in Division H4] In an audiometer for hearing testing, comprising a transistor VT2 connected as an oscillator the output from which is fed to a loudspeaker LS, the rise and decay of oscillation is controlled by applying the power to the transistor oscillator via a transistor VT1  whose base is connected to an RC circuit consisting of resistor Rl and capacitor Cl. Operation of switch SWC applies battery voltage to the collector of transistor VTI which is initially non conducting but becomes conducting as capacitor Cl changes through resistor R1. The circuit values are such that full output is reached in 80 mS., and the output decays in 100 mS., values within the range prescribed by B.S.S. 2980 (1958). The audiometer output frequency is adjustable to 500, 2000, or 4000 Hz, by switches SWA, and the output level to 40 or 70 dB above threshold at 1ft. from a normal ear, by switch S.WB.
Patent GB-858412-A (GB)
Title: Improvements in or relating to hydraulic presses
IPC: B30B7/02
Filed: 1957-03-06
Abstract: 858,412. Laminating apparatus. WST PATENTER A.B. March 6, 1957 [Nov. 28, 1956], No. 7381/57. Class 140. [Also in Group XXIX] A multi-opening hydraulic press 2 has at one side a feeding device 4 having reciprocable plates 5 for introducing glued slabs 24 between pressing plates 3, and at the opposite side a receiving device 26 comprising driven rollers 27 and rollers 30 arranged in downwardlysloping planes. The plates 5 are secured to beams 22 fastened to chains 20, 21 co-operating with sprockets on shafts 6, 12 driven by a motor 9 through chain-andsprocket gearing. When the plates 5 are moved forwardly the objects pressed during the previous operation of the press are moved forwards by the ends of the plates 5 until they reach the rollers 27 and are removed from the press. At the end of the forward stroke of the plates 5, arms 25, mounted on sleeves driven by a motor (not shown), are turned to engage the ends of the objects on the plates 5 so that when the plates are retracted the objects remain in place. When the plates 5 are fully retracted the arms are returned to their initial position.