baber/WOPTO huggingface dataset:
Patent GB-1114658-A (GB)
Title: Tool electrode for electro-erosive machinery
IPC: B23H3/04
Filed: 1966-11-02
Abstract: In an electrode tool comprising a conductive shank portion 10 externally covered with insulation 14, and a conductive planar face plate 11 for presentment adjacent to and movement through a workpiece 23, which tool has formed therein behind said face-plate an electrolyte manifold space 13 from which is fed through passage means 15 in the face-plate 11 to the central area of the machining face 21 thereof, the face plate 11 is formed with a narrow rim 22 round the periphery thereof, such that the restriction to electrolyte flow around the periphery of the machining face is greater than that presented by said passage means 15.  The rim may extend 0.007-0.020 in advance of the machining face 21 and may be approximately 0.020 in. wide.  The machining face 21 may also have a groove (25) formed therein inside and adjacent to the rim 22, Fig.5 (not shown).  The electrode tool may be of kidney shape (see Fig.2) the electrolyte being supplied to the electrolyte space 13 via a plurality of channels 12 extending axially through the shank 10, and the electrolyte passage means 15 comprises a slit which is enlarged at its ends to circular holes 17, 18 having chamfered edges.
Patent GB-1201280-A (GB)
Title: Improvements in or relating to water spouts
IPC: E03C1/086
Filed: 1968-10-17
Abstract: 1,201,280. Regulating fluid-flow. TOYO TOIJ K.K. Oct.17, 1968 [Oct.30, 1967], No.49261/68. Heading G3H. [Also in Division F2] A water silencer for a bath tap comprises a star shaped strip 21 Fig. 2 and gauze discs 22 secured to outlet 12 by a cap nut 18.
Patent GB-1416565-A (GB)
Title: Permanent deformation of human hair
IPC: A45D7/00
Filed: 1973-03-14
Abstract: 1416565 Treating human hair WELLA Ltd 14 March 1973 [21 March 1972] 49306/ 74 Divided out of 1416564 Heading D1P The subject matter is similar to that of Specification 1416564 except that the glyoxylic acid is replaced by ascorbic acid.
Patent GB-1062559-A (GB)
Title: Method of producing a material fro structural members
IPC: C08L61/10
Filed: 1964-12-04
Abstract: A phenol-aldehyde resin foam has a granulated filler added before curing, the filler consisting of expanded-clay granules or of expanded-shale granules.  In an example expanded clay or shale granules are preheated and added to a mixture of liquid phenol-formaldehyde condensate, trichloroethylene and a catalyst mixture of paratoluene sulphonic acid and sulpuric acid; the resulting mix is cured in a mould, the trichloroethylene vaporizing during the curing and causing the resin to foam.
Patent GB-1515075-A (GB)
Title: Planing boat hull
IPC: B63B1/18
Filed: 1976-11-29
Abstract: 1515075 Planing hulls D L WOLLARD 29 Nov 1976 [10 Dec 1975] 49656/76 Heading B7A A planing hull comprises top side-walls 14, 16 extending from bow 18 to transom 20, a V- shaped forward bottom section 22 having a pair of bottom side-walls 34, 36 extending from bow to a vertical step 32 aft of amidships, and a rearward bottom section comprising a transverse surface 40 extending from the step 32 to the transom 20 between continuations 34<SP>1</SP>, 36<SP>1</SP> of the upper portions of the bottom side walls 34, 36. The transverse surface 40 defines the lowermost part of the rearward bottom section. As shown, an inboard engine 42 drives a single propeller whose axis is at the level of keel 38. An anti-cavitation plate 50 forms an extension of surface 40.
Patent GB-1435617-A (GB)
Title: Silicone rubber compositions
IPC: C08L83/04
Filed: 1973-10-25
Abstract: 1435617 Fire-retardant silicone rubbers containing Pt and an azo compound SHINETSU CHEMICAL CO 25 Oct 1973 [26 Oct 1972] 49773/73 Heading C3T A fire-resistant silicone rubber composition comprises (a) 100 p.b.w. organppolysiloxane R a SiO (4-a)/2  wherein each R is an optionally halogenated methyl, ethyl, propyl, or phenyl radical or a vinyl or allyl radical and a is 1À90- 2-05, (b) 30-200 p.b.w. of finely divided siliceous filler, (c) 3-200 p.p.m. of (a) of Pt in free or combined form, (d) 2-100 times the weight of (c) of an azo compound R<SP>1</SP>-N=N-R<SP>1</SP>, R<SP>1</SP>-N=N-OR<SP>1</SP> or R<SP>1</SP>-N=N-NH-R<SP>1</SP>, and (e) a curing agent. Preferably (a) contains 0-2 mol. per cent vinyl radicals and 0-30 mol. per cent phenyl radicals in the R radicals, the remainder being methyl radicals; (b) may be, e.g. fume silica, precipitated silica, quartz powder or diatomaceous earth; (d) may be, e.g. azobisisobutyronitrile, diazoaminobenzene, azobenzene, azophenol, aminoazobenzene, an azodicarboxylic acid ester or diamide, azocarbonamide, azoxybenzene and azoxybenzoic acid; (e) may be, e.g. an organic peroxy compound or a methyl hydrogen polysiloxane. In the examples a base compound of 100 p.b.w. polydimethylsiloxane containing 0À2 mol. per cent MeViSiO units and (in Examples 8 and 9) 3 mol. per cent Ph 2 SiO units or (in Examples 13-15) 5 mol. per cent MePhSiO units, 30 or 50 p.b.w. fume silica and 3 or 10 p.b.w. Ph 2 Si(OH) 2 ; 100 p.b.w. of the base compound are mixed with 30-70 p.b.w. 5 Á quartz (omitted in 13-15), 0À1 p.b.w. of a 2 % solution of H 2 PtCl 6  in i-PrOH, 20-50 times the weight of Pt of azobisisobutyronitrile, optionally 15 p.b.w. MnCO 3  or 5 p.b.w. TiO 2 , and 1 p.b.w. di-t-butyl peroxide or 1À5 p.b.w. methyl hydrogen polysiloxane or both, or a 1À3 p.b.w. dichlorobenzoyl peroxide or 1À2 p.b.w. methyl hydrogen polysiloxane or both.
Patent GB-1512750-A (GB)
Title: Ore separator
IPC: G01N23/223
Filed: 1976-11-30
Abstract: 1512750 Sorting solids YAKUT NI I PROEKT INST ALMAZODOBYVAJUSCHEI PROMYSHLEN "YAKUTNIIPROALMAZ" and LENINGRAD N PROIZVODSTVEN OBIEDINENIE "BUREVESTNIK" 30 Nov 1976 49814/76 Heading B2H [Also in Division G1] In an ore separator, e.g. for separating diamonds from a wet mixture, the mixture is fed to a rotating bowl 4, Fig. 3; the rotation breaks up lumps in the mixture and removes water, while distributing the mixture in a thin layer inside the bowl. The upper region of the bowl is irradiated with X rays 10 from sources 7, and luminescence from wanted components of the mixture is detected by photocells 8. As the wanted components are thrown out of the bowl, they are deflected into a chute 15 by air jets 12 actuated by the photocells. The mixture is fed into the bowl via pipe 2. The bowl has baffles 18 in its lower part; the bowl is parabolic, except for the upper region which is conical. The apparatus is closed at the top by a plate 6 having annular slots 10, 11 for the passage of X rays and luminescence. Equations are given for the velocity of particles in the bowl, and for the angular position of the air jets relative to the photocells.
Patent GB-1359862-A (GB)
Title: Photoelectrophoretic apparatus and process
IPC: G03G17/04
Filed: 1971-10-27
Abstract: 1359862 Photo-electrophoretic imaging XEROX CORP 27 Oct 1971 [28 Oct 1970(2)] 49906/71 Heading G2H A photo-electrophoretic imaging apparatus comprises a transparent electrode plate 3 and a plurality of roller electrodes 4, 5 and 6, at least a first roller 4 being arranged to travel in a direction to intersect over the plate the path followed by a second roller 6. The rollers and the plate are arranged to be held at differing potentials and an exposure device comprising a light source 61 and a lens 63 is provided beneath the plate. The roller 6 is supported for rotation in a carriage 31 provided with pinions 40-43 meshing with rack gears 10 and 11. The rollers 4 and 5 are supported for rotation in a carriage 26 provided with pinions 33-36 meshing with rack gears 8 and 9. The roller electrodes may each carry a blocking web 57, shown for roller 6, which is pulled from a supply 58 by driven rollers 59 and 60 as the carriage moves. In a first mode of operation electro-phoretic ink is spread over the plate 3 and exposed to light from an original 62 as the roller 4 passes over the plate resulting in a negative image being formed on roller 4 (or the associated blocking web) and a positive image on the plate. Roller 5 is used to subject the image on the plate to a further field whilst further exposure to light is given. Roller 6 is then passed over the plate to transfer the positive image from the plate to the roller (or the associated blocking web 57). In a second mode of operation roller 4 is used for electro-phoretically spread the ink over the plate 3, roller 5 is used to image the ink and roller 6 to pick-up the image from the plate as before. In a third mode of operation roller 4 is used to image the ink, roller 6 is used to give the ink a second exposure to the field during further exposure of the ink to light and roller 5 is used to pick-up the image from the plate. During the passage of the carriage 27 over the plate either roller 4 or roller 5 may be lifted to an inoperative position. A separate film sheet having a transparent window corresponding to plate 3 may be placed above the plate to receive the image. This sheet may also have a pod of electro-phoretic ink which pod is rupturable by pressure of the roller electrodes.
Patent GB-1282122-A (GB)
Title: Electron irradiation apparatus
Inventor: EMANUELSON ROY M
IPC: H01J33/00
Filed: 1969-10-13
Abstract: 1282122 Endless conveyers HIGH VOLTAGE ENG CORP 13 Oct 1969 50228/69 Heading B8A [Also in Division H1] Apparatus for irradiating materials with electrons, e.g. for sterilization or for crosslinking plastics materials, is provided with shielding sufficient to attenuate any X-rays generated to a level below 2À5 millirads per hour, and with interlock means whereby the electron beam is interrupted if the shielding is removed. In treating packages 124, Fig. 12, a circular turret 120 with paddle arms 123 receives the packages from a conveyer 125, and after they have been irradiated through electron window 30 deposits them on the output conveyers 126. In an arrangement for treating 4<SP>1</SP> Î 8<SP>1</SP> sheets of plywood, Fig. 13, # pair of continuous roller chains 167 and 168 are joined by a plurality of slats 169, say one every two feet, and the end slats are preferably provided with stops 170. Every eight feet then is provided a pair of 2 inch lead filled steel rollers 172 and 173 adapted to intercept radiation travelling parallel to the conveyers. The rollers pass under a screening lip 163 with minimum clearance (1/16 inch) and then the leading roller 173 descends a ramp 183 whilst the trailing roller 172 ascends a track 184 on each side so that it passes under the cover plates 164, 165 with minimum clearance.
Patent GB-1512408-A (GB)
Title: Devices for oscillating ingot moulds in continuous casting plants
IPC: B22D11/053
Filed: 1975-12-10
Abstract: 1512408 Linkwork OFFICINE MECCANICHE DANIELI et C SpA 10 Dec 1975 [11 Dec 1974 12 Dec 1974 19 Nov 1975] 50688/75 Heading F2K [Also in Division B3] A table 24 for mounting a continuous casting mould (29) is secured on two uprights 25, which flank the mould when it is in position suspended in the table and which are pivoted at 21 on arms 18 of a lever 23 which is oscillated about a fulcrum 20 mounted in a support frame 10 carrying guide rollers 36 for rolling on surfaces (of guide blocks 33) secured on each upright 25 to determine the oscillation path of the mould; adjustable force is applied to the lever 23, as by tension springs 31, at the side of the mould. The lever 23 is driven by an adjustable eccentric 15 operating in a fork of an arm 17 or indirectly on the arm by way of a rod 14. When a mould is to oscillate in a rectilinear manner, the arrangement is such that the pivots 21, fulcrum 20 and centre 19 of the drive application are in the same plane, which is perpendicular to the mould axis when in the central position of oscillation. When a mould is to be oscillated in a curve, the pivot 21 is, as shown, not in the plane of the fulcrum 20 and centre 19; it is above or below it and a guide surface 45 of a guide block 33 lies in an arc 47. Apart from restraint of movement of the uprights 25, forwards and backwards of the assembly (the lever 23 being considered to extend away from the mould towards the front) by the rollers 36, lateral movement may also be restrained, by rollers 30 acting between and on lower guide surfaces 44. The rollers 36 at the front are spring-loaded and movably mounted for adjustment of the loading. As shown they are mounted on a pivoted arm 39. Various arrangements of guide blocks 33 and guide surfaces and rollers 36 are described, Figs. 6-9 (not shown), for restraining forward and backward and, generally, sideways movement of the uprights 25 and of the oscillated mould.
Patent GB-1530144-A (GB)
Title: Device for feeding softening liquid to yarn during twisting
IPC: D01H13/30
Filed: 1975-12-10
Abstract: 1530144 Liq. treatment of yarns OFFICINE SAVIO SpA 10 Dec 1975 [12 Dec 1974] 50690/75 Heading D1L The method of applying softening liq. to ballooning yarn as it is being withdrawn from a double-twist machine by supplying liq. to the inner surface of a cylindrical container surrounding the yarn holder at the point of contact of the ballooning yarn therewith, as disclosed in Specification 1530143, is modified in that the apertures in the walls of the container used for supplying the liq. are replaced by a porous member 24 disposed within the liq. supply chambers 22. The members may extend all or part of the way around the container 17 in one or more rows.
Patent GB-1435960-A (GB)
Title: Devices for control of powered vessels
IPC: B63H25/44
Filed: 1973-10-31
Abstract: 1435960 Stopping and steering ships K TAKAHASHI 31 Oct 1973 50732/73 Heading B7V In a ship having a recess 2 on the side la of the hull 1 below the waterline, the recess has a shurter 3 which pivots about a vertical axis at 5 from a closed position to an open position extending outwardly from the side of the hull. One hydraulic piston 7 acts on the arm 6 of the shutter to open the shutter and a second hydraulic piston acts on the arm to close the shutter.
Patent GB-1512300-A (GB)
Title: Flameproofing polyamide compositions
IPC: C08K5/02
Filed: 1976-12-07
Abstract: 1512300 Flameproofed polyamides RHONEPOULENC INDUSTRIES 7 Dec 1976 51008/76 Heading C3R Polyamides are rendered resistant to burning or dripping when exposed to fire by incorporating (by weight) 1 to 5% Zn borate, 1 to 5% Sb2O3 and 14 to 22% C18H12Cl12.
Patent GB-1326755-A (GB)
Title: Wheel brake cylinder assembly for a hydraulic twin brake  system
IPC: F16D65/22
Filed: 1970-10-27
Abstract: 1326755 Brake actuators AISIN SEIKI KK 27 Oct 1970 [27 Oct 1969 19 Dec 1969] 51088/70 Heading F2F A wheel cylinder assembly for a hydraulic dual braking system comprises a cylinder 10 and at least two pistons 12, 14 slidable therein and an intermediate piston 13 telescopically slidable between pistons 12, 14, chambers 22, 23 of three working chambers 22, 23, 52 being in fluid communication through a normally open valve 16 which is closed when failure of fluid pressure occurs in either of the dual circuits to provide a hydraulic link between one of the outer pistons and the intermediate piston to provide braking with minimum loss of stroke. In modifications a ball valve is provided. The cylinder assembly is applicable to disc or drum brakes.
Patent GB-1408791-A (GB)
Title: Method of selectively filtering polychromatic light beams
IPC: G02F1/1347
Filed: 1972-11-06
Abstract: 1408791 Modulating light LICENTIA PATENT-VERWALTUNGS GmbH 6 Nov 1972 [6 Nov 1971] 51156/72 Heading H4F In a variable colour filter, a homotropically aligned nematic liquid crystal layer is subjected to an A.C. field of an intensity and frequency such as to distort (tilt) the nematic alignment without producing dynamic scattering, whereby the layer, which initially appears optically isotopic to an incident polychromatic light beam, becomes birefringent, and the layer is disposed between crossed or parallel polarizers for selectively transmitting interference colours in the energized state. Parts of the layer may be selectively addressed, e.g. by X and Y strip electrodes on respective sides of the layer, for a colour display on a dark or light background. By applying A.C. voltages of the same frequency to both electrodes and varying the phase at one electrode, the magnitude of the resultant field and hence the colour transmitted may be controlled. The brightness at any point may be controlled by time multiplexing. To display both primary and non-primary colours, three adjacent elemental points constituting a single image point may be independently operated with different predetermined fields. Alternatively an arrangement of three sequential layers with interposed polarizers, providing three primary colours, may be used. With low A.C. voltages, the filter acts as a grey scale (intensity) modulator. Such a filter may be used in series with the colour filter, the intermediate polarizer being common, and the electrodes being in register if shaped. In a projection arrangement, the filter may be positioned at the slide position of a still projector, being preceded by a heat protective filter, and the image is received on a screen or matt disc. For small angle transmission a fibre optic disc replaces the matt disc. As particularly described, the nematic material may be methoxy-benzylidene-p-n-butylaniline, the polarizers are cemented to glass plates bounding the liquid crystal layer, and glass-air surfaces are anti-reflection coated. The A.C. frequency may be 1 kHz to 30 kHz and is preferably 5 kHz. The nematic layer is preferably controlled to be at a temperature above ambient, e.g. by resistance heating using transparent conductive sheets externally of the glass plates, or the X-Y conductors themselves. The latter enable selective heating, for example for correcting colour deviations arising out of variations in the thickness of the nematic layer. If the intended homotropic alignment is not actually at 90 degrees to the surfaces of the nematic layer, the layer must be tilted until the alignment and optical path are parallel.
Patent GB-1362295-A (GB)
Title: Catalyst suitable for use in the polymerization of unsaturated compounds the polymerization processes employing such catalysts and products obtained by the processes
IPC: C08F4/12
Filed: 1971-11-03
Abstract: 1362295 Olefin polymerization catalysts SNAM PROGETTI SpA 3 Nov 1971 [3 Nov 1970] 51201/71 Heading C3P A catalyst consisting of (a) a compound of formula AlR 2 X where both R radicals are hydrogen or are C 1 -C 8  hydrocarbon radicals which may be the same or different and X is hydrogen, F, Cl, Br, I or a C 1 -C 8  hydrocarbon radical and (b) a compound YZ where Y and Z are selected from I, Cl, Br or F is suitable for polymerizing monomers in the liquid phase wherein the catalyst is maintained as a liquid. The polymerization may be effected in the presence of a solvent and may be terminated by the addition of ammoniacal methyl alcohol. In the examples isobutene and isoprene are copolymerized in methylene chloride, ethyl chloride or methyl chloride using as (a) AlEt 2 I, AlEt 2 Cl, AlEt 2 Br or AlEt 3  and as (b) I 2 , ICl, IBr, Br 2  or Cl 2 .
Patent GB-963755-A (GB)
Title: A process for the manufacture of n-(1-hydroxy-2:2:2-trichloroethyl)-mono- or di- or tri-chloroacetamide
IPC: C07C233/16
Filed: 1961-08-17
Abstract: N-(1-hydroxy-2,2,2-trichloroethyl) mono-, di- and tri-chloroacetamides are manufactured by reacting anhydrous trichloroacetaldehyde in an organic solvent with the appropriate chloroacetamide. In practice a catalytic quantity of strong acid (e.g. sulphuric) is used.  The preparation of all three products is exemplified.  German Specification 949,946 also is referred to.
Patent GB-1172517-A (GB)
Title: Photochemical Production of Plates for Offset Lithography
Inventor: WHEELER BRIAN HENRY
IPC: B41N1/08
Filed: 1965-12-02
Abstract: 1,172,517. Printing plates. ROTAPRINT Ltd. 23 Nov., 1966 [2 Dec., 1965], No. 51249/65. Heading B6C. [Also in Division G2] Printing plates comprise a hydrophilic chromium layer and a hydrophobic imaged photomechanical material directly coated thereon. The chromium layer is preferably electrodeposited on brass, copper or copper alloy. The plate differs from the normal bimetallic plate in that chromium is the upper layer and in that it is not etched or treated in any other way.
Patent GB-1591900-A (GB)
Title: Track sanding method and device
IPC: B60B39/08
Filed: 1977-12-14
Abstract: The invention comprises a grit metering device (6), a grit container (1) and a grit discharge pipe (7) which ends in front of at least one wheel (23) of the vehicle. The grit discharge pipe (7) protrudes with its upper end (8) through the floor (6') of the container (1) as far as under a bell (9) which is arranged permanently in the container (1) and inside the grit supply (11). A compressed air line (13) is connected to the container (1). The compressed air which is supplied is divided up into a main stream and a secondary stream. The secondary stream serves for drying and/or loosening the grit (11) in the container (1) in order to increase the flowability of the grit (11) via the bell (9) and the discharge pipe (7) into the gap between the wheels (23) of the vehicle and the carriageway (24). In operation, the main stream is directed via the shortest path through the container (1) into the discharge pipe (7) whilst the secondary stream first flows through the grit (11) in the container (1) and swirls through it in order then to be directed away again via the discharge pipe (7). The discharge of the grit together with the compressed air via the discharge pipe (7) onto the carriageway (24) is controlled by a compressed air control (14; 20) which is installed in the mainstream and the secondary stream of the compressed air supply. <IMAGE>
Patent GB-1528388-A (GB)
Title: Laser photocomposition system and method
IPC: B41B21/08
Filed: 1975-12-19
Abstract: 1528388 Photographic type-composing DYMO INDUSTRIES Inc 19 Dec 1975 [23 Dec 1974 13 Feb 1975] 52120/75 Heading B6W  A beam 52 from a laser source 50 is vertically deflected up and down by a deflector 58 and horizontally deflected linewise in small increments by a rotatable mirror 62 so as to scan a photographic film or photolithographic member 54. Part of the light is directed by a beam splitter 70 and by the mirror 62 to a photoelectric sensor 74 which detects the position of the beam with respect to the film 54 and controls a further deflector 56 which, in response to signals from the sensor and from the control tape, deflects the beam away from an aperture 91 in a plate 90 so as to blank the beam at selected instants, thereby to produce characters on the film. The extent of vertical deflection can be limited to the height of the tallest character in a line, and as this extent is reduced the speed of horizontal deflection can be increased. Characters above a certain height are formed in two successive scans, the second after moving the film. In another form, the light for the sensor is emitted from the other end of the laser source 50.