baber/WOPTO huggingface dataset:
Patent GB-1145298-A (GB)
Title: Laser machining apparatus
Inventor: SHIFRIN GORDON ALEXANDER
IPC: H01S3/105
Filed: 1966-12-13
Abstract: 1,145,298. Laser machining. HUGHES AIRCRAFT CO. 13 Dec., 1966 [3 Jan., 1966], No. 55722/66. Heading B3V. [Also in Division H1] A laser machining apparatus is aligned prior to use by passing collimated light through the laser from an external source 14, Fig. 2, the laser comprising a cylindrical container 36 adjustably positioned between movable external resonator reflectors 34, 38 and containing a ruby active medium 65 and a flashlamp 67, Fig. 3, the alignments of the reflectors and container being corrected in turn until maximum light intensity is observed in an alignment viewer 32 temporarily associated by a mirror or prism 30 with the apparatus. The laser container is supported from insulating brackets 66 which are carried by a back plate 40, alignment being effected by screws 76 which secure and position the container in conjunction with set screws (78), Fig. 4 (not shown). The reflectors 34, 38 are adjustably supported by adjustment screws 60 on end plates 42, and in addition are eccentrically positioned for rotation with respect to the axis of emission, Fig. 5 (not shown), so that in the event of surface damage an undamaged part of a reflector may be brought into use. The laser assembly is enclosed by a dust cover 85. After alignment has been made the reflector 30 is replaced by a beam splitter 110, Fig. 7, which enables the laser energy applied to a workpiece to be monitored, the reflector 30 and the beam splitter each being mounted in a respective housing 104 which may be mounted on to a fixed housing 108 by pins 112. The fixed housing is rigidly supported with respect to the laser assembly, the source of collimating light which may be a gas laser or xenon lamp, and the workpiece, Fig. 1 (not shown), and includes an objective lens 28 in the output light path.
Patent GB-1457505-A (GB)
Title: Production of articles with a marbled surface
IPC: B28B1/00
Filed: 1972-12-02
Abstract: 1457505 Moulding surface-patterned articles R W DOREE 28 Feb 1974 [2 Dec 1972] 55754/72 Heading B5A An article is formed by partially mixing together two or more constituent materials (each being an aqueous mixture) while in an unset state, the partial mixture being placed, and allowed to set, in a mould, to provide a marbled appearance on at least part of the surface of the article. As described, at least one surface of an article of concrete, plaster or artificial stone is provided with differently coloured areas or different cementitious mixtures. The marbling forms a surface layer on a backing block, is applied to a preformed core, or passes throughout the article, which may be hollow. Slabs, tiles, copings, posts, containers or garden ornaments are produced. In one example, sharp sand, grey cement, water and black pigment are mixed to form a major constituent; sharp sand, white cement, water and blue pigment are mixed to form a minor constituent. A mixer is partially filled with the major constituent and the minor constituent dispersed over the surface with a spatula. Half the mixture with most of the minor constituent is poured on to half of a mould base, more minor constituent is dispersed over the remaining mixture in the mixer, and this is poured on to the other half of the mould base. After vibration and partial setting, the mould is fitted with backing concrete and vibrated. In a second example, using green, black and blue pigments, the major and minor constituents are mixed in alternating layers and the result poured into the mould. Continuous mixing can alternatively be used. A low cost aggregate can be incorporated. The mould comprises metal laminated with a plastics film, (e.g. PVC, polyester resin or acrylic resin) or stove enamelled aluminium or galvanized steel. Enamelling employs as paints silicon-modified polyester resin, polyvinyl fluoride, PVC plastisols, having smooth, semi-glass or matt surfaces. The mould walls are embossed in paint or metal when punched or stamped to shape.
Patent GB-1381616-A (GB)
Title: Microswitch
IPC: H01H13/18
Filed: 1972-12-05
Abstract: 1381616 Switch actuators SAIA AG 5 Dec 1972 [6 Dec 1971] 56054/72 Heading H1N An actuator lever 4, Fig. 1, for a microswitch has a pair of arcuate or sector-shaped bearing lugs 5 insertable into recesses 7 on opposite side faces of the switch housing 1 and pivotable therein for actuation of the switch pin 3. Pairs of recesses 7 may be arranged at opposite ends of the switch for alternative mounting. In the example of Fig. 1, the lugs 5 are arcuate to provide for pivoted mounting and may have radial projections 6 engageable between stops 11, 12 on the recess 7 to limit the pivotal movement. Sloping side faces 10 above each stop 12 provide for spreading apart of the lugs 5 during insertion in the recesses 7. In a modification, the lugs 13, Fig. 4, have sector-shaped extension 14 which sit in sectorshaped recesses 15 of a wider angle whereby the lugs pivot about a common centre point 16. A stop 18 limits the upward movement and sloping side faces 19 provide for spreading the lugs 13, 14 apart during insertion. The sectors 14 may also have outwardly bent flanges 20 to ease the initial insertion.
Patent GB-1412288-A (GB)
Title: Furnitrue fitting
IPC: F16B12/24
Filed: 1972-12-07
Abstract: 1412288 Furniture joints ULM FITTINGS Ltd 5 Dec 1973 [7 Dec 1972] 56608/72 Heading F2M A connection between two furniture components, e.g. a horizontal shelf S and a vertical panel P, comprises two blocks 10, 11 which are adapted, as by screws passed through bores 13, 17, respectively, to be secured to components P, S, respectively, one block 10 having transversely elongated apertures or recesses 12 in a face F which is adapted to be engaged by an opposing face of block 11 when the two blocks are brought into juxtaposition during assembly of the components, the apertures 12 receiving dowel pins 16 on the other block 11 so that relative lateral movement can occur between the blocks, and one or more bolts B and nuts N passed through bores 14, 18 in the blocks with sufficient lateral play to allow the relative lateral movement between the blocks prior to tightening. Preferably the opposing faces of the blocks are roughened or serrated.
Patent GB-1283849-A (GB)
Title: Spinning machine for spinning fibres to yarn in a spinning chamber
IPC: D01H4/10
Filed: 1970-11-30
Abstract: 1283849 Break spinning apparatus VYZKUMNY USTAV BAVLNARSKY 30 Nov 1970 [27 March 1970] 56691/70 Heading DID In a machine in which vent openings 9 in a rotor 5 generate a depression in the interior space 7 of the rotor whereby fibres separated by a combing roller 19 from a sliver 33 are fed through a channel 22 to the space 7 where they pass up a conical surface 11 to a collecting surface 8 on which they are deposited as a ribbon and twisted into yarn 25 which is withdrawn through a bore 24 by rollers 26 and wound onto a bobbin 28, impurities conveyed with the fibres into the space 7 are discharged through openings 12 in the surface 8 to a closed chamber 13 which is sealed by labyrinth seals formed by annular walls 11, 131 coacting with grooves 18 in a plate 16. In a modification, in which the annular wall 131 is dispensed with, an annular wall projecting inwardly from the housing 1 forms a labyrinth seal with a grooved surface of the rotor below the vent openings 9.
Patent GB-1159508-A (GB)
Title: Improvements in or relating to coupling devices for implements
IPC: A01B59/00
Filed: 1966-12-19
Abstract: 1,159,508. Coupling agricultural implements to tractors. JOHN DEERE-LANZ VERWALTUNGS A.G. 19 Dec., 1966 [17 Dec., 1965], No. 56814/66. Heading A1P. The lower links of a tractor power lift mechanism are telescopic and consist of an outer sleeve 12 and an inner sleeve supporting a hook 15 and they are held at a variable distance apart by an extendable rod universally jointed to pins arranged to engage in brackets 47. The link is lemonshaped in cross-section and is biased to extend by means of a spring 18. A spring- biased latch device 30 holds the link in either its extended or retracted position. A pivoted latch (not shown) can be incorporated to secure the implement pin in the hook 15 and also to take the place of the latching device 30.
Patent GB-1147856-A (GB)
Title: Polyimides
IPC: C08G73/00
Filed: 1967-12-14
Abstract: 1,147,856. Polyamide acids and polyimides. E. I. DU PONT DE NEMOURS & CO. 14 Dec., 1967 [15 Dec., 1966], No. 56840/67. Heading C3R. Polyamide acids and the corresponding polyimides have recurring units respectively of the formulae wherein R is a tetravalent organic radical of at least 2 C atoms bonded to 4 carbonyl groups, no more than 2 of which are bonded to any 1 C atom of R; R<SP>1</SP> is a divalent organic radical containing an azo group and at least 2 C atoms with 1 C atom attached to each of the azo N atoms; n is an integer sufficient to provide a polymer having an inherent viscosity of at least 0À1 as measured at 30 C. in a 0À5% wt. solution, in N,N-dimethylacetamide for the polyamide acid, and in conc. H 2 SO 4  for the polyimide; and the arrows indicate isomerism. Examples of diamine starting materials are 4,41-diaminoazobenzene and 4,4<SP>1</SP>-bis-(p-aminophenylazo) azobenzene.
Patent GB-1419125-A (GB)
Title: Process for the dyeing of organic material by application of a short goods-to-liquor ratio
IPC: D06B19/00
Filed: 1972-12-11
Abstract: 1419125 Dyeing and optically brightening textiles CIBA-GEIGY AG 11 Dec 1972 [13 Dec 1971] 57024/72 Headings D1B and DIP Organic textile materials are dyed and optically brightened using a short goods to liquor weight ratio of 1:1.5 to 1:4 the dye liquor consisting of at least one-water soluble or waterdispersible dyestuff, or brightener, water and a surface active wetting agent in an amount of 0.2 to 10 g/l of liquor, the liquor being applied in an atomised form in a closed chamber whilst the material is kept in motion, the temperature being raised to 65 to 130C after application of all the liquor to fix the dye in a saturatedsteam atmosphere to fix the dye. The organic material may be aftertreated by the application of an aqueous solution, suspension and/or water in atomised form, washed and dried. The liquor may be applied to the organic material at a temperature below the exhaust temperature of the dyestuff, preferably 20 to 95C. Heating may be effected by hot air, saturated or superheated steam or by external heating. Wool, cotton, polyesters, polyamides and silk may be treated.
Patent GB-1269400-A (GB)
Title: alpha-IMIDOACRYLATES HAVING INSECTICIDAL ACTIVITY
Inventor: BROWN ALLAN GUILDFORD
IPC: C07D207/404
Filed: 1969-11-25
Abstract: 1,269,400. α-Imidoacrylic esters. BEECHAM GROUP Ltd. 29 Oct., 1970 [25 Nov., 1969], No. 57606/69. Heading C2C. Novel α-imido acrylates of the formula in which R<SP>1</SP> and R<SP>2</SP> are each hydrogen or methyl groups, R<SP>3</SP> is C 1-6  alkyl, R<SP>4</SP> and R<SP>5</SP> are each hydrogen or C 1-6  alkyl and R<SP>6</SP> and R<SP>7</SP> are each hydrogen or methyl groups or together represent a double bond in the imide ring, provided that R<SP>3</SP> is not methyl when R<SP>1</SP>, R<SP>2</SP>, R<SP>4</SP>, R<SP>6</SP> and R<SP>7</SP> are hydrogen and R<SP>5</SP> is methyl, are prepared by heating an anhydride of the formula with either an unsaturated amino ester of the formula or a hydroxy amino ester of the formula The known compound, methyl 2-(methylsuccinimido)-acrylate, is made by an analogous method. The reaction with the hydroxyamino ester III may proceed in 2 steps, an intermediate α-imido-#-hydroxy ester of the formula being isolated, such intermediates in which R<SP>6</SP> and R<SP>7</SP> represent a double bond being optionally hydrogenated to the corresponding saturated compounds. Examples describe the preparation of a variety of imides. Methyl 2-amino-3,3-dimethylacrylate is prepared by aluminum amalgam reduction of methyl 2-nitro-3,3-dimethylacrylate which is obtained by nitration of methyl 3,3-dimethylacrylate. Serine methyl ester hydrochloride is obtained by reaction of serine with methanolic HCl. The novel α-imidoacrylates are used in conventional forms as insecticides.
Patent GB-1099758-A (GB)
Title: Improvements in or relating to machines for processing tea leaf
Inventor: BARBORA DHIRENDRA NATH
IPC: A23F3/12
Filed: 1966-12-29
Abstract: In and for a tea leaf processing machine of the type comprising a cylindrical stator having a plurality of sets of pins or the like projecting from a substantial portion of its inner wall starting from the discharge end thereof, an opening near the other end for the introduction of tea leaf to be processed, and a rotor adapted to advance the leaf from the feed end to the discharge end by axial rotation therein, the leaf being simultaneously processed, said rotor comprising a helical feed worm on the shaft for a part of its length near the feed end and a plurality of sets of vanes or the like, staggered with respect to the sets of pins on the stator, projecting along the remaining length of the rotor, there is provided an attachment comprising a conical or frusto-conical member having helically disposed flutes on its curved surface, which flutes may be integrally formed on the member or attached thereto, the conical or frustoconical end thereof being adapted to be mounted at the discharge end of the rotor shaft for axial drive, the attachment being enclosed by the end portion, or an extension, of the cylindrical stator, leaving a clearance for processed tea to be discharged around the base of the attachment.
Patent GB-1301878-A (GB)
IPC: C07C255/46
Filed: 1970-12-08
Abstract: 1301878 Substituted cyclohexenecarbonitriles L GIVAUDAN & CIE SA 8 Dec 1970 [29 Dec 1969] 58214/70 Heading C2C [Also in Division A5]  The invention comprises a mixture of isomers of the following formulµ and a process for making it by reacting myrcene with methacrylonitrite at 50-300‹ C. in a closed system.
Patent GB-1361359-A (GB)
Title: Fuel proportioning device for internal combustion engines
IPC: F02M69/22
Filed: 1972-12-21
Abstract: 1361359 Fuel injection systems E HARINGS R HARINGS and U HARINGS 21 Dec 1972 [24 Dec 1971] 59079/72 Heading F1B An I. C. engine fuel proportioning system comprises a proportioning valve 16, Fig. 1, connected to a constant pressure fuel supply and a delivery outlet for connection to inlet manifold injection apparatus, an adjustable throttle valve 6 connected between a return outlet 18 and a return conduit 7 to the supply, controlling the throttle valve and thereby the fuel pressure in the proportioning valve which comprises a spring- loaded pressure responsive valve 22 controlling the fuel delivery and means 19 preventing instantaneous pressure equalization in the valve on opening of the delivery outlet. In operation the combustion air-flow moves disc 11 and thereby loads diaphragm 6A upwardly so that as the air flow increases the fuel pressure in valve 6 is overcome and less fuel is returned to the fuel pump thereby increasing the fuel supply proportionally. Valve disc 22 is unseated by the fuel pressure in chamber 21 to allow fuel passage to nozzle 4 and equalization of the pressure on opposite sides of the valve disc which then permits the disc to be reseated by spring 32. The opening rate thus caused is dependent on the pressure in valve 6 and the flow of combustion air through manifold 9. A needle valve 20, Fig. 2 ensures that throttle valve 6 is unaffected by short term variations in pressure in chamber 21. Each separate branch 5 is connected to a separate pressure responsive valve 16, all of the valves being connected to the single throttle valve 6.
Patent GB-1242078-A (GB)
Title: A tubular sealing strip for joinder cracks
Inventor: DALE OLAV
IPC: E04B1/686
Filed: 1968-12-02
Abstract: 1,242,078. Seals for joinder cracks. O. DALE. 2 Dec., 1968 [4 Dec., 1967; 31 July, 1968], No. 60052/68. Heading E1B. A joint sealing strip for joinder cracks as between two structural elements having parallel end walls comprises a pair of elastomeric elongate tubes 3 hingedly interconnected as by a bridge 1 along their length each tube having an elastomeric integral longitudinally extending partition wall 2 therein thinner than the tube walls and so disposed that when the strip is inserted into the joint with the tubes side by side transversely of the joint, the partition walls 2 are each placed in tension whereby the resistance to compression of each tube in the joint will be increased to improve the seal of the joint. The outer surfaces of the walls 3 may be provided with knurlings or ribs. The tubes may be semicylindrical hingedly interconnected along the length of one diametrical edge of the tube, each partition wall defining the diametrical side of the tube. Further partition walls lying obliquely to the parallel related partition walls may be provided.
Patent GB-1366070-A (GB)
Title: Pressure sensitive adhesives containing nitrocellulose
IPC: C09J7/38
Filed: 1970-12-22
Abstract: 1366070 Pressure-sensitive adhesive coating IMPERIAL CHEMICAL INDUSTRIES Ltd 26 Nov 1971 [22 Dec 1970] 60908/70 Heading B2E [Also in Divisions B8 and C3] A backing material such as paper, cellulose film, metal foil, tape or cloth is coated with a nitrocellulose bond, water-dispersible, pressure sensitive adhesive composition. A polyvinyl alcohol-primed and silicone coated release paper may be applied to the coating. The adhesive composition contains, in addition to the nitrocellulose, an alkyl phenol polyethylene oxide condensate in a solvent for the nitrocellulose. Optionally, a damping agent for the nitrocellulose, a conventional plasticizer, and a tack-improving resin may be present. In the Examples, the backing material is clay-filled calendered Kraft label paper.
Patent GB-1276071-A (GB)
Title: Spring brake actuator
IPC: F16D65/18
Filed: 1970-12-31
Abstract: 1276071 Slack adjusters; spring brake actuators BENDIX CORP 31 Dec 1970 [5 Jan 1970] 61924/70 Headings F2E and F2F In an automatic slack adjuster, particularly for disc brakes, a piston 40 is moved to apply pads 42, 28 against a disc in a service application by fluid pressure acting in a chamber 34, excess wear of linings causing the piston to move an abnormal amount and apply a force through a washer 68 and balls 70 to a nut 72 which is rotated on a threaded section 5, 6 of a force transmitting member 54 to limit retraction of the piston and take up the excess wear. The adjuster forms part of a spring brake actuator 20 in which a further piston 50 abutting section 56 is held by fluid pressure acting in chambers 82, 84 to compress Belleville washers 74, release of pressure to chambers 82, 84 causing piston 50 to move under the bias of washers 74 thereby applying the brakes through the abutting connection 86, member 54, nut 72 and piston 40. In order to compensate for the elasticity of the components of the actuator which would cause an adjustment to take place under high fluid pressure or panic stop conditions member 54 is stepped and is provided with a bore 66 communicating via radial bores 64 with chamber 34. In normal brake operations fluid pressure acting on the larger cross-section A 1 A 2  of the stepped member 54 is not sufficient to overcome the bias of a spring 102 acting thereon but under panic stop conditions, the spring bias is overcome and member 54 is moved leftwardly carrying with it section 56 to apply piston 40. Since nut 54 is moved with the section 56 no adjustment takes place.
Patent GB-1291279-A (GB)
Title: Pneumatic tire
IPC: B60C15/06
Filed: 1969-12-22
Abstract: 1291279 Pneumatic tyres UNIROYAL 22 Dec 1969 [31 Dec 1968] 62295/69 Heading B7C A radial ply pneumatic tyre comprises a zone of gradually decreasing stiffness in each wall from a bundled-wire bead core 3 and rubber apex strip 7 up to half the maximum height H of the carcass, being formed by the staggering to at least two spaced levels of the ends 1a-1d of carcass plies 1, the ends lying between heights H/4 and H/2, further carcass plies 2 having their ends 2a-2d lying beneath the bead core, at least two chafers 4, 5 having their upper ends lying between the mean level of the ends 1a-1d and the top of the bead core, the carcass and chafer plies comprising parallel filaments or cords, adjacent chafer plies having their cords or filaments crossing, and at least one flipper 6 at least partly enveloping the apex strip 7. Further chafers (not shown) may lie with their upper ends between ends 4a and 5a and their lower ends below the top of the bead core. The plies 1 may have their ends 1a-1d equally spaced or the ends 1a and 1c may be coincident with 1b and 1d respectively, or 1b and 1c may be coincident. The cords or filaments of the chafers and flippers are of metal, glass, or natural or synthetic textile, and in the chafers are round, oval, or flat. The rubber of the chafers has a Shore A hardness of 65-80 degrees and the filaments or cords lie at an angle of 20-60 degrees to the underlying carcass cords. The flippers are of natural, or synthetic, e.g. nylon, polyester, or glass fibre textile felt covered by rubber of Shore A hardness of 70-85 degrees. The flipper ends may be staggered. The rubber of the tyre may be natural or synthetic.
Patent GB-1291489-A (GB)
Title: Continuous metal casting machine of the drum and belt type with a system for steering the casting belt
IPC: B22D11/06
Filed: 1969-12-30
Abstract: 1291489 Continuous casting HAZELETT STRIP-CASTING CORP 30 Dec 1969 63376/69 Heading B3F To keep the belt 16, Fig. 2, of less than 0À060 inch thickness, of a belt-and-drum casting machine centred on pulley wheels (17), 18, (19) which support and guide the belt, a wheel 18 adjacent the drum (14) is pivotally mounted so that the axis of the wheel can be swung about the axis of the pivot P, e.g. through Œ1 degree. The pivot P is adjacent the region where the belt 16 leaves the drum and passes on to the wheel 18. The pulley wheel (17) which passes the belt 16 to the drum (14) may be pivotally mounted in similar manner. The shaft 50 of the wheel 18 is mounted on a plate 70 that is pivoted at P on a bearing plate 72 on which the plate 70 slides around the pivot. A tongue of the plate 70 extends under a strip 76 held by bolts 78 on a top plate 74 of a pedestal, Fig. 4, on which the plate 70 is pivoted, to counteract the weight of the wheel 18 and shaft 50 and the tension of the belt 16. The bolts 78 limit the pivotal movement of the plate 70 and shaft 50. To pivot the plate 70 and shaft 50 for adjusting the belt position, a lever 68 is operated by hand or by a cylinder-and-piston 69, Fig. 4, controlled by a sensing mechanism contacting the belt edge. The lever 68 rotates an eccentric 64, journalled in a block 65 secured to the pedestal 49, so that a link 66 attached to a block 63 secured to the plate 70 is drawn towards or pushed from the block 65 and correspondingly moves the plate 70 to swing the pulley shaft 50. The link 66 is pivoted on a second eccentric 62 journalled in the block 63 for initial adjustment of the plate 70, of the shaft 50 and therefore of the belt 16 on the pulley wheels. Coolant is sprayed on to the belt 16 to form a film moving transversely across it as described in Specification 1,252,211.
Patent GB-691964-A (GB)
Abstract: 691,964. Metal boat construction. McLEAN & SONS, Ltd., H. March 25, 1948. No. 8889/48. Class 113 (ii). In a metal boat comprising a keel 5, a narrow longitudinal centre plate 6 that extends across the keel and is welded to it, and longitudinal series of hull plates 8 at opposite sides of the centre plate, each series of these hull plates are welded to one another directly or indirectly by transverse joints, their inner margins overlapping the centre plate 6 in proximity to the keel and being welded to the centre plate. In the embodiment shown in Fig. 4 the hull plates 12 are welded directly together at 13 by joints each consisting of a joggled end margin 12A of one plate fitting within the adjacent end margin 12B of the other, the joggled end margin having a stiffening flange 14. In the embodiment of Figs. 1 and 3, the hull plates 8 are welded together indirectly by transverse tubular frame members 9 disposed at the edges of adjacent hull plates and welded thereto at 10 ; 11 being stoppers. Specification 687,771 is referred to.