baber/WOPTO huggingface dataset:
Patent GB-1318377-A (GB)
Title: Carbon fibres and process for their production
IPC: D01F9/22
Filed: 1970-08-27
Abstract: 1318377 Carbon fibres TORAY INDUSTRIES Inc 27 Aug 1970 [28 Aug 1969] 41378/70 Heading C1A [Also in Divisions C2 and C3] Carbon fibre products are obtained by heattreating a fibre of a copolymer comprising from 80-99À95 mol per cent of units of acrylonitrile and from 0À05 to 20 mol per cent of units of a hydroxymethyl vinyl aromatic compound of the formula wherein X is an optionally substituted phenyl or naphthyl group and R is H or an alkyl, aryl, cycloalkyl or aralkyl group having up to 12 carbon atoms. The compound of the above formula is preferably #-methylene phenethyl alcohol or a ring-substituted derivative thereof. A third vinyl comonomer (e.g. sodium allylsulphonate) may optionally be included in the copolymer. Heat-treatment of the copolymer fibre is effected at not less than 700‹ C., preferably 1000-1800‹ C.; to obtain graphite fibres, temperatures of 2500-3300‹ C. are used. In a preferred procedure, the fibre is first heated at 150-350‹ C. in air or oxygen (to oxidize the fibre) or in sulphurous acid gas (to sulphurize the fibre) or in nitrogen monoxide (to nitrosate the fibre), and then at 700‹ C. or above under reduced pressure in a non-oxidizing atmosphere (e.g. nitrogen, argon or hydrogen) or in an acidic atmosphere (e.g. hydrogen chloride gas).
Patent GB-1022867-A (GB)
Title: Cellulosic food casing
Inventor: CHIU HERMAN SHIN-GEE
IPC: C08J7/04
Filed: 1963-10-19
Abstract: 1,022,867. Coating tubular regenerated cellulose film. UNION CARBIDE CORPORATION. Oct. 19, 1963, No. 41384/63. Heading B2B. [Also in Division A2] A cellulosic food casing comprises a tubular regenerated cellulose film having at least one surface thereof coated with an adherent organosiloxane having the unit formula wherein R is an alkyl, aryl, aralkyl or alkaryl radical and X is sodium or potassium. The organosiloxane may be applied as an alkaline solution so as to form a coating on the inner surface of the tubular film, which is thereafter dried. The solution may be applied to the external surface of the tubular film and allowed to diffuse therethrough to form an organosiloxane layer on the inner surface. The solution may contain titratable alkali in an amount from at least that sufficient to solubilize the organosiloxane up to that having about equal molar amounts of titratable alkali and organosiloxane. The coated tubular film may be treated with a solution of water-soluble neutral organic ester, examples of which are given, before the film is dried. The organosiloxane may contain 1-10 units and R may be methyl, ethyl or propyl; aryl, e.g. phenyl, naphthyl; alkaryl, e.g. benzyl, phenylethyl or alkaryl, e.g. tolyl, ethylphenyl or xylyl; examples are given, e.g. sodium methyl siloxanolate which may be applied as an alkaline aqueous solution containing 0À2-4À0% by weight thereof. As shown in Fig. 1, a flattened, tubular, regenerated cellulose film 10 is passed through tank 11 containing a glycerinwater solution 12, between squeeze rolls 13, through tank 14 where the external surface contacts a solution of organopolysiloxane 15, which diffuses therethrough to form a coating on the inner surface of the tube. The tube passes through squeeze rolls 16 and 18, through heating chamber 19, through squeeze rolls 20 prior to winding on reel 22. The tube is inflated by a bubble of air maintained in a relatively fixed position between squeeze rolls 18 and 20. The organosiloxane solution may also be applied by, for example, spraying and roller coaters. As shown in Fig. 2, the tubing after passing through rolls 13 is coated on its inner surface by the organosiloxane solution contained within the tube between squeeze rolls 25 and 26. The solution is introduced into the tube by cutting the tube in two at a point between rolls and inserting the desired amount of solution. The two ends are tied together around a short length of hollow rubber connecting insert so that there is an uninterrupted flow of air through the connection to inflate the tube during drying.
Patent GB-1432646-A (GB)
Title: Liquid droplet recording apparatus
IPC: B41J2/09
Filed: 1973-09-05
Abstract: 1432646 Selective printing INTERNATIONAL BUSINESS MACHINES CORP 5 Sept 1973 [5 Oct 1972] 41702/73 Heading B6F [Also in Division G4] An ink jet printer where ink drops are directed on to a sheet by taking a path inclined at an acute angle to the direction of motion of, and in the plane of the sheet. The ink drops are charged to a level indicating their individual print position thus permitting a single jet to generate alphanumerical characters. The level of charge varies the length of flight of the ink drops. Preferably the drops move perpendicularly relative to the motion of the sheet, the perpendicular also lying in the plane of the sheet. As shown in Fig. 2A, a coded input is held by buffer 310 to be synchronized with oscillator output to generator 320. Within the generator (see Fig. 2B) the coded input is supplied to a store 326 having KL locations where K is the number of symbols in the font used and L is the number of drops required to produce a symbol (L varies from symbol to symbol). Each location can be charged to one of its levels. The store 326 is emptied and the binary output converted by decoder 330 to an analogue and amplified for applying to a charging electrode around the ink drop path.
Patent GB-952429-A (GB)
Title: Improvements relating to electric lighting fittings
IPC: F21V17/10
Filed: 1962-11-08
Abstract: 952,429. Electric lighting fittings. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Nov. 8, 1962 [Nov. 8, 1961], No. 42263/62. Heading F4R. A lantern, especially for use with fluorescent lamps has a transparent or translucent cover 2 suspended from the housing 1 by cords or chains 5, 6, e.g. of Perlon, the points of attachment 3, 4 to the housing 1 being staggered relatively to the points of attachment 7, 8 on the cover so that when the cover is in closed position the cords or chains are stretched taut and the casting of shadows is avoided.
Patent GB-1155733-A (GB)
Title: Improvements in or relating to the manufacture of Brushes
IPC: B24B19/16
Filed: 1966-09-22
Abstract: 1,155,733. Brush-making apparatus. CARLSON TOOL & MACHINE CO. 22 Sept., 1966 [17 Feb., 1966], No. 42295/66. Heading A4K. [Also in Division B3] In apparatus for grinding the tips of bristles for an assembled paint brush, the bristles 16a are flexed progressively as they pass, in a straight line B, beneath a spherical rotary grinding surface 37a. The line B, which may intersect the rotary axis of the disc 37, defines the run of a continuous brush conveyer (3), which may be associated with a grinder having a pair of discs 37 (Fig. 1, not shown). The surface 37a of disc 37 is coated with particles of nickel clad tungsten carbide.
Patent GB-1149810-A (GB)
Title: Improvements in or relating to hydroxylammonium acid sulfate compositions
IPC: C01B21/14
Filed: 1967-09-19
Abstract: 1,149,810. Hydroxylammonium acid sulphate solution. COMMERCIAL SOLVENTS CORP. 19 Sept., 1967 [31 Oct., 1966], No. 42602/67. Heading C1A. An aqueous liquid composition having a crystallization temperature of 25 C. or less comprises 75% to 85% by weight hydroxylammonium acid sulphate, 2À1 to 12À5% by weight sulphuric acid, and water. The requisite amount of water, sulphuric acid and hydroxylammonium acid sulphate, which may be pure or commercial grade are brought together and agitated until a homogeneous solution is produced.
Patent GB-1005708-A (GB)
Title: Improvements relating to photo electrically sensitive devices
Inventor: DAVIS GORDON PETER
IPC: H01J29/38
Filed: 1960-12-14
Abstract: 1,005,708. Photo-electric cathodes. ELECTRIC & MUSICAL INDUSTRIES Ltd. Dec. 7, 1961 [Dec. 14, 1960], No. 42941/60. Headings H1D and H1Ir. A photo-electrically sensitive layer 3 supported by a translucent substrate 1 is spaced therefrom by an intermediate translucent layer 2 such that light reflections from the interfaces bounding the intermediate layer are mutually cancelling. The refractive index of layer 2 should be approximately equal to the geometric mean of the refractive indices of substrate 1 and layer 3. A plurality of intermediate layers 2 may be used, their refractive indices then being graded in geometric series. The thickness of layer 2 should be #/4Á where # is the wavelength of incident light for which optimum performance is desired. As shown, the invention is applied to the photo-cathode of an image intensifier but it may also be used in photo-cells, television camera tubes and photomultipliers, or in devices employing photoconductive layers. The photo-cathode is formed by evaporating a layer of titanium on to a glass disc 1 which is then baked and sealed into tube 6 to convert the titanium into titanium dioxide layer 2 which may be 480A thick for optimum operation at 5000A wavelength. The photo-emissive layer 3 is formed by evaporation of antimony in vacuo until the light transmission is reduced to about 80% and activation with caesium or other alkali metal. Alternatively, layer 2 may be of titanium nitride.
Patent GB-1370447-A (GB)
Title: Electrical switch
IPC: H01H36/00
Filed: 1971-09-16
Abstract: 1370447 Partly magnetic switches MAGSAT CORP 16 Sept 1971 [23 Sept 1970] 43176/71 Heading H1N [Also in Division H2] An electric switch comprises a shuttle 16 and an operating element 14, movement of element 14 causing movement of shuttle 16 to open contacts 22, 26 or 24, 28. Element 14 is depressed by depression of push-button 88 and when pushbutton 88 is released, returned by retractive spring 90. Element 14 and shuttle 16 are permanent magnets of polarity such that when element 14 moves down, shuttle 16 moves up, and when element 14 moves up, shuttle 16 moves down. Movable contacts 26, 28 are spring blades biased to the closed position. In the complete switch there are three upper contact sets 22a, 26a, 22b, 26b, 22c, 26c (see Fig. 8), and three sets of lower contacts 24a, 28a, 24b, 28b and 24c, 28c. The fixed contacts 22a, 24a are connected together as are fixed contacts 22b, 24b and 22c, 24c. The lower moving contacts 28a, 28b, 28c are all commoned by connection 66. In the initial position shown in Figs. 5 and 8, contacts 28a-28c are held open by shuttle 16 and contacts 26a-26c by element 14. When button 88 is depressed, initially contacts 26a-26c close, however shuttle 16 does not move until element 14 reaches a critical position when shuttle 16 moves upwardly permitting contacts 28a-28c to close. When shuttle 16 reaches its upper position it opens upper contacts 26a-26c. Thus for an instant all contacts are closed so that a pulse is transmitted from battery 100 (see Fig. 8) to output terminals 56b, 56c. Further as shuttle 16 moves upwards a nose 82 on shuttle 16 holds contact 28a open until after contacts 28b, 28c have closed ensuring a simultaneous pulse output at terminals 56b, 56c. When button 88 is released element 14 moves upwards and shuttle 16 moves downwards. Element 14 engages and holds open contacts 26a-26c before shuttle 16 starts its downward movement, thus contacts 26a-26c are held open at all times during the return movement and the switch delivers one pulse during one complete cycle of the switch. The switch operating characteristics may be altered by cutting off movable contacts 26 at A so that it is only opened by shuttle 16 or at B when it is always closed and by cutting off movable contacts 28 at C so that it is always closed. Different combinations of these give two pulses per cycle, Fig. 9 (not shown), constant output during the cycle, Fig. 10 (not shown), and normally closed but opened during the cycle, Fig. 11 (not shown). A wiping contact may be provided, Fig. 7 (not shown). The contacts may press on a piezo-electric crystal to give a voltage pulse, Fig. 12 (not shown).
Patent GB-1117899-A (GB)
Title: Improvements in or relating to thermally insulated containers
Inventor: SINCLAIR FREDERICK WILLIAM
IPC: B65D90/06
Filed: 1964-10-27
Abstract: 1,117,899. Refrigerators. GLOUCESTER RAILWAY CARRIAGE & WAGON CO., Ltd. 15 Oct., 1965 [27 Oct., 1964], No. 43702/64. Heading F4H. A thermally insulated transportable container comprises an external casing 1 which is open at one end, and an interior casing 4 removably positioned within casing 1, one end of casing 4 being provided with doors 7 and being formed with a flange 9 which completely seals the open end of easing 7 when the container is assembled. Casing 4 is provided with rollers which drop into grooves in the floor of casing 1 when fully inserted, and packing blocks may also be provided to maintain an air space 10 between the casings. Casing 1 has external metal cladding 2 and internal insulation 3 composed of sprayed-on synthetic foam material lined with synthetic sheet material and easing 4 is made from laminated glass-fibre reinforced synthetic resin. Lifting bars 13 and corner reinforcements 14 are provided. The container may be used in conjunction with a refrigeration plant releasably connected to cold storage plates beneath the roof of the inner casing.
Patent GB-1186197-A (GB)
Title: A Method and Apparatus for Determining the Normalcy of Concentration of a Constituent in a Sample.
IPC: G01N35/08
Filed: 1967-09-26
Abstract: 1,186,197. Recording analysis results. TECHNICON CORP. 26 Sept., 1967 [13 Oct., 19661, No. 43720/67. Heading B1X. [Also in Division Gl] A quantitative analysis system comprises sample containers 10 on an intermittently rotating tray 12 which presents each container to a off-take tube 14. A pump 18 has tubes 20 which are progressively closed by rollers 21 so that predetermined volumes of each sample are advanced in a number of streams to a treatment manifold 24 wherein reagents are added to each stream. One stream then passes to a flame photometer 30 having a reference photocell 38 and sample photocells 40. 42. The other streams pass to flow cells 26 in which the concentrations of the constituents of the sample are analysed by a light source 32, a reference photocell 34 and a sample photocell 36. Signals proportional to the concentrations of the constituents are fed from the photocells to a channel selector and bridge circuit 42 of a chart recorder 44. The chart is marked with a number of ordinates each calibrated according to the concentration of a particular constituent and showing the normal range of concentration of that constituent and the stylus of the recorder draws a trace on the chart, the intersection of the trace with each ordinate giving the concentration of each constituent.
Patent GB-916674-A (GB)
Title: Improvements in and relating to lighting appliances
Inventor: HOLMES JOHN GUYSLIFFE
IPC: F21V5/00
Filed: 1959-12-23
Abstract: 916,674. Refractors for electric light fittings. HOLOPHANE Ltd. Dec. 22, 1960 [Dec. 23, 1959], No.43748/59. Class 75 (2). In a lighting fitting adapted to redirect transmitted light from a source into one or more desired directions, prisms are provided in a zone remote from the principal axis of the preferred direction or of one of the preferred directions, having at least one face which would act as a totally reflecting surface for a ray coming from outside the fitting over a range of angles for which reduction of emitted light is desired. In a bowl fitting for street lighting in which the main beams are to be directed along the street in directions at 170 degrees to one another' zones are provided on each side of the axes of the fitting at right angles to the length of the street, the zones on the side directed towards the rear side of the street subtending an angle of 45 degrees at the centre and the zones on the opposite side subtending an angle of 35 degrees at the centre. These zones are divided respectively into 7 and 6 sub-zones with boundaries at increasing angles to the transverse axis. In the sub-zone nearest this axis, doubly refracting prisms of 90 degrees apical angle are provided on the interior of the fitting, the apical angles being bisected by the axial plane through the centre. In the next sub-zone, similar prisms are used, but with the plane of symmetry inclined at 5 degrees to the axial plane through the centre. In the next two sub-zones, similar prisms are used but the plane of symmetry is inclined at 10 degrees and 15 degrees respectively to the axial plane. In sub-zones further from the transverse axis, prisms having apical angles less than or greater than 90 degrees are used. In Fig. 4, the face 28 is inclined at 45 degrees to the base of the prism but the face 29 is set more steeply, the inclination of the face 28 to the axial plane being less in the more remote zones. In Fig. 5, the face 33 is inclined at 45 degrees to the base of the prism but the face 34 is set less steeply, the face 33 being more steeply inclined to the axial plane in the more remote zones. The sub-zones containing the prisms of Figs. 4 and 5 transmit a certain amount of light in directions inclined towards the preferred directions.
Patent GB-1414002-A (GB)
Title: Diamond scanning element and method of making it
IPC: G11B3/46
Filed: 1972-09-21
Abstract: 1414002 Pressure scanning skid TED BILDPLATTEN AG AEG-TELEFUNKEN TELDEC 21 Sept 1972 [30 Sept 1971 19 Nov 1971] 43818/72 Heading G5R The wear on a diamond skid for pressure scanning topographic modulation in a groove of a video disc record is reduced by forming the skid such that the engagement surface is formed at least in part from the natural surface of a diamond crystal. The skid can be formed from octahedron 3 by using the flattened off peak, presenting a cubic surface (001), as the engagement surface flanked by octahedral surfaces (111) and (111) and with ends in the direction of relative movement between skid and record defined by octahedral surfaces (111) and (111). In use the engagement surface is inclined to the direction of relative motion. In the construction described with reference to Figs. 4a-4c (not shown) the engagement surface is a dodecahedral chamfer between two octahedral surfaces and in the Fig. 5, 6a and 6b arrangement (not shown) the engagement surface is a dodecahedral chamfer between two cubic surfaces. The diamond crystals can be natural or synthetic. Wear resistance can be chemically improved by doping the diamond with nitrogen or boron or by using a boron oxide protective layer or by a siloxal layer. In this last arrangement silicon is first diffused into the diamond and this is then oxidized to produce a silicon dioxide layer.
Patent GB-1293074-A (GB)
Title: A process for preparing hydrogenated non-linear block copolymers
Inventor: SHAW ALFRED WILLIAM
IPC: C08G81/02
Filed: 1970-09-15
Abstract: 1293074 Reduced block copolymers SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 15 Sept 1970 [17 Sept 1969] 43943/70 Heading C3P Non-linear block copolymers are prepared by (i) coupling a block copolymer of the type (polybutadiene-polyisoprene) n  having a lithium atom at one end of the chain (where n is 1 to 8) with a coupling agent which is a diester of a monohydric alcohol or phenol and a dicarboxylic acid or a compound having at least three reactive sites capable of reacting with the carbonlithium bond, the coupling agent being used in an amount of 0À1 to 2 equivalents per g. atom of Li in the polymer, and (ii) reducing at least 50% of the unsaturation in the polymer by hydrogenation. The coupling agents mentioned are those described in Specifications 1,205,532 and 985,614. The example describes the use of diethyl adipate. Preferred hydrogenation catalysts are those obtained by combining a carboxylate or alkoxide of Co or Ni with an aluminium hydrocarbyl compound, e.g. nickel octanoate and triethyl aluminium.
Patent GB-1495309-A (GB)
Title: Frequency responsive switching circuit
IPC: G01P1/10
Filed: 1975-10-27
Abstract: 1495309 Transistor pulse circuits FORD MOTOR CO Ltd 27 Oct 1975 [8 Jan 1975] 44001/75 Heading H3T [Also in Division Fl] A frequency responsive switching circuit comprises a first monostable 144 including a timing circuit P1, R6, C4, the output of the first monostable being coupled to the input of a second monostable 146 which includes a timing circuit R9, C6 and means R12, D5 for modifying the time constant of the timing circuit of the first monostable in dependence on the state of the second monostable. In one state of the second monstable, output terminal 9 is at a high level and diode D5 is conductive to connect resistor R12 in parallel with series connected potentiometer P1 and resistor R6. In this state, the time constant of the first monostable is 1/f 1  where f 1  is 125 Hz. In the other state of the second monostable, the diode D5 is non-conducting and the time constant of the first monostable is 1/f 0  where f 0  is 123 Hz. If an input pulse train at 114 from a car ignition coil 136, 138 is lower than f 0 , the first monostable 144 completes its timing cycle for each input pulse to provide triggering pulses for the second monostable 146. These pulses maintain the monostable 146 in its unstable state with output 9 high and diode D5 conductive. In this condition transistor Q3 is conductive to hold transistor Q4 off an inhibit operation of a solenoid (not shown) in the collector circuit of Q4. If the frequency of the input pulse train increases above f 1 , monostable 144 cannot complete its timing cycle before it is reset by a reset pulse on 4 and its output remains at a high level except during reset pulses at 4. Time constant circuit C5, R7 removes these pulses from the output so that input 8 of the second monostable 146 remains at a high level and the monostable 146 times out. Output 9 then falls to a low level cutting off transistor Q3 to turn on Q4 and energize the solenoid (not shown) in its collector circuit. When output 9 falls, diode D5 is also cut-off changing the time constant of the first monostable 144 to provide hysteresis, since the input frequency must fall to below f 0  before the circuit reverts to its initial state. The solenoid prevents the throttle of a vehicle being completely closed when the engine speed is above a predetermined level.
Patent GB-1022696-A (GB)
Title: Masts and method of making same
IPC: B63B15/00
Filed: 1963-11-08
Abstract: 1,022,696. Masts. T, KIRKBY. Feb. 2, 1965 [Nov. 8, 1963], No. 44225/63. Heading B7V. A mast comprises major and minor parts of fibre-glass-reinforced synthetic resin mouldings of full mast length, the major part having a concavo-convex cross-section, and the minor part bridging the gap between the edges of the major part and being bonded thereto. The minor part is also of concavo-convex crosssection, is oriented similarly to the major part, being shallower than the latter so that a space is formed between the parts.