baber/WOPTO huggingface dataset:
Patent GB-1015330-A (GB)
Title: Constructional materials and methods for their manufacture
IPC: E04C2/36
Filed: 1962-08-09
Abstract: <PICT:1015330/C1/1> <PICT:1015330/C1/2> Chevron structures of the type disclosed in Specifications 815,522 and 815,523 are formed by drawing the structure from a sheet of material in an extensible condition and subsequently hardening the sheet.  The material may be thermoplastic plastics material or a material which may be made extensible by e.g. peat, a chemical action, humidification, or partial dissolution.  In one embodiment, Fig. 6, a clamped sheet F of heat-softened thermoplastic material is drawn to the required shape between press platens P1 and P2 which carry interleaving blades L1 and L2, the ends of each of which blades has the form of the ridge lines of the required chevron structure.  In a second embodiment, Fig. 3, a sandwich structure is formed from a heat-softened thermoplastic material placed between cover plates c and d.  Each cover plate is covered by a nonadhesive material except for lines e1 and e2, having the shape of the ridge lines of the required chevron structure, said lines having an adhesive applied to them, so that, when the plates are pulled apart the sheet material adheres to said lines and is drawn into a chevron structure.  Materials that may be used are: hot metal sheets, glass sheets, ceramic rubber or the like sheets, or paper, felt, cardboard or fabric sheets.
Patent GB-1487427-A (GB)
Title: Liquid dispersions
IPC: C08J3/20
Filed: 1974-12-06
Abstract: 1487427 Liquid blowing agent dispersion KARL FINKE oHG and INMONT CORP 6 Dec 1974 [27 Feb 1974] 52798/74 Heading C3C [Also in Division C4] In Example 15 a liquid blowing agent dispersion comprises an azodicarbonamide blowing agent, dioctyl adipate, sorbitan trioleate, polyoxyethylene (20) sorbitan trioleate and calcium carbonate of average particle size 5 Á. The dispersion may be used to manufacture foamed plastic furniture parts from plastics such as polystyrene.
Patent GB-1132850-A (GB)
Title: Improvements in or relating to a tie for bracing the branches of fruit trees and the like
IPC: A01G17/12
Filed: 1965-12-13
Abstract: 1,132,850. Branch ties. M. A. LAGUERRE. 13 Dec., 1965 [16 Dec., 1964; 17 July, 1965], No. 52918/65. Heading A1E. A tie for bracing tree branches comprises a band 1 of flexible material provided on one face with a flange 2 having a bore through which passes a bare metal wire 3. The band may have a concave profile for engagement with the branch and the flange may have lips capable of opening to permit the band to be engaged over a wire fixed in position on a branch. The ends of the wire 3 may have closed loops to enable a number of ties to be connected together by means of wire, Fig. 3 (not shown).
Patent GB-1170416-A (GB)
Title: Improvements in and relating to Plug Valves
Inventor: FLOYD TERENCE JOHN
IPC: F16K5/18
Filed: 1965-12-16
Abstract: 1,170,416. Valves. AUDCO Ltd. 14 Nov., 1966 [16 Dec., 1965], No. 53410/65. Heading F2V. A rotary cylindrical or conical plug valve has the plug in the form of a flexible sleeve which is eased away from the valve body bore 4 as the plug is rotated. As shown, the sleeve is split and slightly gapped and at this side has two tongs 9, 10 engaged by sides 11, 12 of a recess in a driving member 14 fast with a stem 15. The frictional resistance enables the sleeve to contract and become eased. Instead of the split, the sleeve may have two opposite convolutions (18, 19), Fig. 3 (not shown), running lengthwise to give the necessary flexibility.
Patent GB-1061369-A (GB)
Title: Hydrocarbon conversion catalyst and use thereof
IPC: C07C2/54
Filed: 1965-12-16
Abstract: Hydrocarbons are isomerized in the presence of a Pt-Al2O3 catalyst activated in oxygen at 149-427 DEG  C. with an organic chloride containing at least two carbon atoms and having an atomic ratio of hydrogen to chlorine less than 1.0. Typical isomerization conditions are:-Temp. 121 DEG  to 204 DEG  C.; L.H.S.V. 0.5 to 10; H2: hydrocarbon feed 0.05: 1 to 5: 1. Reference is made to the isomerization of paraffins such as butanes pentanes, hexanes and heptanes, naphthenes such as methyl cyclopentane, cyclohexane and dimethyl cyclopentane.  Examples describe the isomerization of n-hexane to 2: 2 dimethylbutane. the catalyst is also described as being useful for alkylation and disproportionation reactions.ALSO:A Pt-Al2O3 catalyst is activated at 149 to 427 DEG C in the presence of oxygen with an organic chloride containing at least two carbon atoms and having an atomic ratio of hydrogen to chlorine less than 1.0. Details are given of the replacement of the OH1 groups on the surface of the Al2O3 by Cl1 ions.  The catalyst may contain 3 - 12% chlorine. An example describes the deposition of 0.6% Pt on e -Al2O3 prior to chlorine action.
Patent GB-1350409-A (GB)
Title: Vapour phase ammoxidation
IPC: C07D213/84
Filed: 1971-11-23
Abstract: 1350409 Vapour phase ammoxidation SUN OIL CO 23 Nov 1971 [23 Nov 1970 1 Oct 1971] 54336/71 Heading C2C A process for the ammoxidation of an organic compound where no oxygen is added, comprising passing a vaporous stream of ammonia and an alkyl-substituted organic reactant over an ammoxidation catalyst which has been pretreated with the organic reactant at reaction conditions before admitting the reactant stream to the reaction system. The organic reactant may be an alkyl substituted aromatic hydrocarbon, on olefin or an alicyclic or heterocyclic compound.
Patent GB-1417847-A (GB)
Title: Tape recorder driving mechanism
IPC: G11B15/28
Filed: 1972-11-24
Abstract: 1417847 Tape transports BANG & OLUFSEN AS 24 Nov 1972 [26 Nov 1971] 54368/72 Heading G5R A reel-to-reel tape transport comprises a capstan motor (not illustrated) and a separate, reversible motor selectively driving either tape reel by a belt and pulley drive, at fast or normal speed according to the motor supply voltage, the changeover of drive from one reel to the other being accomplished automatically as the motor is reversed by shiftable belt-lifting means.  As shown, a belt 2 passes round a motordriven pulley 1, a guide pulley 22, and pulleys 3, 4 mounted on the tape reel shafts 9, 10. Members 7, 8 are also pivotally mounted on the shafts 9, 10 and have pulleys 5, 6 for lifting the belt 2 off either pulley 3, 4. The members 7, 8 are connected by a link 13, and in the position shown, the member 7 tends to be rotated counterclockwise by the belt 2 so that the link 13 abuts a stop pin 14 on the chassis. When the motor is reversed, the pulley 5 is moved clockwise, capture pins 11, 12 on the members 7, 8 frictionally engage the belt 2 and the linkage moves clockwise to its other position in which the link 13 abuts a second stop pin 15 and the pulley 4 is disengaged. The drive changeover is completed some time after the motor has been reversed, and so to prevent tape spillage each pulley 3, 4 is coupled to its shaft 9, 10 via a dog coupling (18, 19), Fig. 1 (not shown), which permits free rotation of each pulley through almost one revolution (about 330 degrees) before the shaft is engaged. The link 13 may be omitted and the members 7, 8 driven frictionally from the pulleys 3, 4. The pulley 5 may be replaced by pulleys 30, 31 to reduce the extent of the belt lifting movement. The changeover may be accomplished electromagnetically, e.g. by a solenoid.
Patent GB-1281062-A (GB)
Title: Distribution device
Inventor: YOSHIYA YOSHIO
IPC: H01R25/14
Filed: 1969-11-10
Abstract: 1281062 Current collectors MATSUSHITA DENKO KK 10 Nov 1969 [11 Nov 1968 (2) 28 Nov 1968 12 May 1969] 54823/69 Heading H2E A distribution duct P for use with a rail or duct H having conductors 27 spaced by a slot 31 comprises an insulating member 1 having laterally projecting arms 2 locating electrical spring contacts 7 whereby the plug is securable to the rail in a slidable mounting with the contacts 7 connectible to the conductors 27. The mounting arrangement includes a flange 12 and a spring 15 for resiliently biasing the plug towards the rail. The electrical contacts may be U-shaped or have leg portions (Figs. 6, 10, not shown) locatable in an insulating tube 1 carrying connecting wires 8, the contacts being separated by insulating members (41, 52, Figs. 6, 10). To lock the plug in any desired position on the rail, a threaded sleeve 19 is provided. A further threaded sleeve 22 may be provided to clamp the plug against rotation. The rail or duct comprises a pair of conductors secured by an insulator 28 within a channel shaped housing 33 having ledges 32 about which the arms 2 and flange 12 may be resiliently clamped.
Patent GB-1127359-A (GB)
Title: Purification of nitriles by extractive distillation
IPC: H01J37/34
Filed: 1966-12-09
Abstract: 1,127,359. Purification of unsaturated nitriles. MONSANTO CO. 9 Dec., 1966 [9 Dec., 1965], No. 55268/66. Heading C2C. [Also in Division B1] A crude olefinically-unsaturated nitrile, such as acrylonitrile or methacrylonitrile obtained by a catalysed reaction between ammonia and propylene or isobutylene respectively, is purified by introducing the crude nitrile through line 10 into column 11 where it is submitted to extractive distillation using water as solvent; the vapours leaving the top of the column through line 13 are condensed forming a condensate which separates into a water layer and a purified nitrile layer. Impurities, such as acetonitrile, propionitrile and hydrogen cyanide, leave the base of column 11 in the form of an aqueous solution, which is heated in stripping column 15 to distil off the impurities. The purified water withdrawn from the base of column 15 is returned through lines 21 and 12 to the upper section of column 11. Vapours are withdrawn from an upper section of column 15, and are introduced through line 22 into the lower section of column 11, thereby supplying the heat for the extractive distillation. Impurities are discharged from the system through line 20 which leads from condenser 18. An alternative apparatus is described wherein part of the stripping zone is directly connected to the lower end of the extractive distillation column. Reference is made to the purification of crude aqueous acrylonitrile obtained by reaction of ammonia and propylene, and treatment of the synthesis vapour product with water which dissolves acrylonitrile but not the unreacted hydrocarbons, carbon monoxide and carbon dioxide.
Patent GB-1363702-A (GB)
Title: Noninteracting optical system
IPC: G03B33/00
Filed: 1971-04-19
Abstract: 1363702 Colour-coding lens array RCA CORPORATION 19 April 1971 [17 April 1970] 55376/73 Divided out of 1363701 Heading G2J Two arrays 22, 23 of cylindrical lens elements disposed in front of a television camera tube 17 have different refractive indices and are separated by an optical coupling means 24, which is in contact with the curved lens surfaces of the arrays 22, 23, the refractive index of optical coupling means 24 for blue light being equal to that of array 22, and its refractive index for red light being equal to that of array 23. The lens elements of array 22 are convex and parallel to alternate cyan and transparent stripes of one of two gratings of a filter 14, these stripes being at right angles to the direction of line scan of tube 17. The lens elements of array 23 are concave and parallel to oblique alternate yellow and transparent strips of the other grating of filter 14. Thus red light is encoded by the cyan - transparent grating of filter 14 and is found by lens array 22, but is unaffected by the boundary between lens array 23 and optical coupling means 24. Similarly blue light is encoded by the yellow - transparent grating and focused by lens array 23.
Patent GB-1167505-A (GB)
Title: Improvements in and relating to Lamp Holders
Inventor: WEITZEL STANLEY LIONEL
IPC: F21V25/04
Filed: 1965-12-31
Abstract: 1,167,505. Lamp caps and holders. LINOLITE Ltd. 14 Dec., 1966 [31 Dec., 1965], No. 55456/65. Heading H2E. In a holder for a tubular lamp 2 which has a single centrally-located cap 4 with two contact studs 6, resilient abutment contacts 10, 12 are linked to the mains supply through switches 16-20, 14-18 which are operated by insertion and removal of the lamp. Hinged plastics flaps 26, 24 of the holder body, which bear against switch contacts 16, 14, are depressed or raised by insertion or removal of the lamp to respectively close or open the switches. A main switch 36 may be provided, comprising a square cam 40 rotatable by a pull-cord 38 and which, in its "off" position, deflects the switch contact 20 to a position where it cannot be engaged by the switch contact 16. A resilient retaining clip (32, Fig. 3, not shown) in the holder engages opposed indentations 34 in the lamp cap.
Patent GB-1386085-A (GB)
Title: Metering pump
IPC: F04B15/04
Filed: 1972-02-02
Abstract: 1386085 Reciprocating pumps MARCH MFG CO 2 Feb 1972 [30 Aug 1971] 56073/71 Heading F1A [Also in Division F2] A pump, e.g. for caustic or acidic liquids, comprises a piston 40, e.g. of P.T.F.E. with a molybdenum or graphite filler, reciprocated in a cylinder 14, e.g. of porcelain, by an adjustable-stroke mechanism comprising a motor-driven eccentric 50 connected by a crank-pin 49 to a link 47 pivoted at 46 to a link 43 connected to piston 40 at first 44, the first pin 46 being guided in an arcuate groove 55 in a member 56 which is angularly adjustable about the eccentric drive shaft axis to vary the stroke. Graduations 61 indicate the stroke setting, member 56 being moved (by handle 59 and locked by screw 60. The inlet and outlet check valves 21A, 21B are axially ribbed and have chromic magnets 24A, 24B which are repelled by magnets 27A, 27B in screwed plugs 26A, 26B to bias the valves closed, the biasing force being adjustable by axial adjustment of plugs 26A, 26B.
Patent GB-1140468-A (GB)
Title: Method of and apparatus for producing small particles
IPC: B02C19/18
Filed: 1966-12-15
Abstract: 1,140,468. Comminuating apparatus. NUCLEAR MATERIALS & EQUIPMENT CORP. 15 Dec., 1966 [16 Dec., 1965], No. 56158/66. Heading B2A. Zirconium, hafnium, titanium, niobium and tantalum and their alloys are comminuted while maintaining the hydrogen, oxygen and nitrogen at a minimum, by continuously injecting liquid nitrogen or argon into the grinding mass via pipe 61. The apparatus comprises hammer mills 13, 15, 17, Fig. 1, fed via a hopper 21 and feeder 19, with screens 41, and a manifold 53.The temperature of each mill is taken by thermocouples 71. The ground material is collected in a hopper 36.
Patent GB-1293134-A (GB)
Title: Resistance welding apparatus
Inventor: SMITH JAMES FREDERICK
IPC: H01F27/245
Filed: 1968-11-28
Abstract: 1293134 Supply systems for resistance welding apparatus HADDON TRANSFORMERS Ltd 21 Nov 1969 [28 Nov 1968] 56492/68 Heading H2H [Also in Division H1] In resistance welding apparatus comprising a transformer having a laminated core and primary and secondary windings, the primary winding being connected to an A.C. mains supply via switching apparatus which is controlled by a timer, the transformer core has an air-gap 16 in one of its limbs to reduce unidirectional flux therein. It is stated that this flux may result from unbalance of a pair of switches (ignitrons or thyristors) in the primary circuit or from the action of the timer; the welding electrodes are connected to the secondary winding. The core may be an overlap type core with groups 1-15 of laminations, each group comprising a plurality of butt-jointed laminations and an outer lamination having an overlapped joint.
Patent GB-1448684-A (GB)
Title: If amplifiers
IPC: H03F1/32
Filed: 1973-12-06
Abstract: 1448684 Transistor amplifying circuits SONY CORP 6 Dec 1973 [26 Dec 1972] 56598/73 Heading H3T An IF amplifier comprises a differential transistor amplifier 6, 7 whose emitter electrodes are connected to a voltage source through a constant current device 8 and whose collector electrodes are connected to a voltage source 30, one through a signal output means, i.e. tuned circuit 9, there being provided between the bases, attenuating means, i.e. resistors 16, 18 and blocking capacitor 17, for attenuating an output signal from a signal input means, i.e. transistor 4, applied to one base so that the input signal means saturates before the differential amplifier does. This prevents the distortion due to detuning at an FM discriminator 2 by saturation of the immediately preceeding amplifier. The constant current device 8 may be a transistor, Fig. 2, not shown.
Patent GB-1138228-A (GB)
Title: Improvements in, and relating to a central heating installation
Inventor: SUURMOND WILLEM FREDERIK
IPC: F24D19/10
Filed: 1966-12-19
Abstract: 1,138,228. Valves. APPARATENFABRIEK PLAISIER N.V. 19 Dec., 1966, No. 56691/66. Heading F2V. [Also in Division F4] In a central heating system including a hot water boiler connected with radiators into a closed circuit, a thermostatic valve is provided in the boiler outlet to the radiators. As illustrated, the valve controls a boiler by-pass 5<SP>1</SP> in addition to the line 3<SP>1</SP> leading to the radiators. The thermostat 2<SP>1</SP> is heated partly within the boiler and is of the wax filled type operating a spring loaded disc 13 between positions in which the by-pass and the outlet are fully closed. The thermostat is provided so that flow through the boiler will not be allowed until the temperature of the latter is sufficiently high to allow entry of cold water from the radiators without causing significant condensation of combustion products in the boiler heating arrangement. The boiler by-pass includes a fixed or adjustable restrictor, Fig. 1 (not shown). In another embodiment. Figs. 3 and 4 (not shown), the by-pass is omitted and the biasing spring acts on the side of the valve disc remote from the thermostat. The outlet connection includes a cover (21) which may be removed to allow removal of the thermostat.
Patent GB-1361218-A (GB)
Title: Non-cross-linked but crosslinkable thermoplastic compositions
IPC: C08L63/00
Filed: 1971-12-07
Abstract: 1361218 Cross-linking nitrile polymers with epoxides; foamed polymers BORG-WARNER CORP 7 Dec 1971 [6 Jan 1971] 56758/71 Headings C3B C3C C3G and C3P A cross-linkable composition comprises a nitrile-containing polymer, an epoxy compound and a curing agent for the latter, these components being mixed in the melt at a temperature below that at which substantial cross-linking occurs (e.g. 270-300‹ F.) The composition may be cross-linked by heating to 400-600‹ F. Foamed articles are obtained by incorporating a blowing agent, e.g. azobisformamide, in the composition, then heating to foam and cross-link it simultaneously. In the non-cross-linked state the composition has the property that shaped bodies which have been distorted near the melting point and then cooled revert to their original shape when heated again. The proportions used are 0À1-3À5% of epoxy resin and 0À1-1À0% of curing agent by wt. based on the polymer. Examples describe compositions of styrene/acrylonitrile or methyl methacrylate/ methacrylonitrile polymers or methyl methacrylate/acrylonitrile/butadiene/styrene or ABS graft copolymers with bisphenol-A diglycidyl ether or epoxy cyclohexylmethyl epoxy cyclohexanecarboxylate and potassium persulphate, sulphuric acid or BF 3 .EtNH 2 . The compositions also contained a poly(ethylene oxide-propylene oxide)glycol and in some cases glass fibre and/or PVC stabilized with dibutyl tris mercaptide.
Patent GB-1132370-A (GB)
Title: Tool holder
IPC: B23B31/02
Filed: 1966-12-20
Abstract: 1,132,370. Chucks. BALAS COLLET CO. 20 Dec., 1966 [12 Jan., 1966], No. 56929/66. Headings B3B, B3C and B3K. A toolholder has a longitudinally grooved bore and a tool drive block adjustably slidably mounted therein, the block having a recess on each of a plurality of faces for receiving and driving a tool and an edge portion which engages the groove in the bore to be driven thereby. A collet chuck has a drive block B slidably mounted on longitudinal grooves 6, 7, 8, 9 in a threaded bore 4, the tool 3, shown as a twist drill but which may be a milling cutter, having a tang end 3<SP>1</SP> adapted to engage for positive drive and end location purposes in a recess 10 in a face of the block B. A threaded member 5 screwed into the bore 4 supports and adjusts the block B. The drive block may have more than one recess on a plurality of its faces to accommodate different sizes of tool ends and may have a spring detent device to retain it in its adjusted position when a tool is removed with the chuck vertical (Figs. 4, 5 not shown). Blocks of triangular or other section may be employed.
Patent GB-1372360-A (GB)
Title: Maintenance of railway track
IPC: E01B27/12
Filed: 1970-12-01
Abstract: 1372360 Levelling railway track BRITISH RAILWAYS BOARD 25 Nov 1971 [1 Dec 1970] 57038/70 Heading E1G In a method of correcting the height and/or cross-level of a railway track, repeated vertical loadings of an intensity greater than the normal traffic loading are applied to the sleepers, towards one or both ends thereof, to compress the underlying ballast. In the machine illustrated a rigid vehicle body 11 loaded by weights 7 and having lockable suspension springs 9 is hauled by a generator vehicle 1 and is provided on each side with a ram 5 which can apply a loading either to the rail or directly to the sleeper - e.g. through a U-shaped head straddling the rail. If a sleeper end is too low it is over-raised by inserted ballast before applying the ram(s) 5. The ballast may be fluidised by vibrating tines (not shown). One ram 5 may be used to hold one sleeper-end down in its existing position while the other end is forced down by repeated loadings. The specification includes diagrammatic curves showing ballast deformation under different sleeper loadings.
Patent GB-1246998-A (GB)
Title: Process and apparatus for treating fibrous materials
IPC: F26B11/18
Filed: 1968-12-05
Abstract: 1,246,998. Treating tobacco. K. W. QUESTER [trading as WILH QUESTER], 5 Dec., 1968 [23 Dec., 1967; 15 March, 1968], No. 57721/68. Heading A3C. {Also in Divisions Dl and F4] In a process for locating fibrous material, particularly tobacco, with a fluid treatment medium, the material is axially conveyed in a revolving drum and a current of the treatment medium is passed through the drum in a transverse or radial direction through the fibrous material. The current of treatment medium being divided, over the length of axially conveyed material, into streams of treatment medium which are each regulated as regards volume of medium, temperature, and moisture content in accordance with the condition of the material to be treated by the stream. The treatment medium may be drying air, or air containing moisture to introduce a predetermined amount of moisture in to the fibrous material, or an impregnating or flavouring medium. The process may be carried out in an apparatus as shown in Figure 5, wherein a flow of treatment medium passes from the nozzle 15 to the rotatable drum 2, through the fibrous material and out through the nozzle 16. This flow may be recycled via heater 18 and fan 21. A portion of the medium may be diverted from the apparatus via branch duct 30. The drum 2 is provided around its circumference with sieves or grilles 2a through which the treatment medium can pass. Conveyor means (not shown) supply and remove fibrous material to and from the drum. Two or more drums may be positional end-to-end, having progressively larger diameters and rotating at the same or different speeds or direction. The drums engage one another in such a way that material is automatically conveyed from one drum to the next. The drums may each be provided with several flows of treatment medium, and the treatment medium supplied to each of the drums may be the same or different.