baber/WOPTO huggingface dataset:
Patent GB-844734-A (GB)
Title: Improvements in three-dimension tracing head
IPC: B23Q35/34
Filed: 1958-11-17
Abstract: 844,734. Electrical tracer heads. GENERAL ELECTRIC CO. Nov. 17, 1958 [Nov. 19, 1957], No. 36887/58. Classes 38 (6) and 40 (1). A feeler gauge for producing electrical signals indicative of the x, y, z co-ordinates of a surface to be measured or copied comprises two coaxial styli, an outer one which is displaceable in the horizontal x, y plane to produce individual x, y signals, and an inner stylus displaceable in the vertical direction only to produce z signals, each signal being produced by the corresponding displacement of an armature relative to a balanced coil system. As shown, an outer hollow stylus 8 is attached to a diaphragm 14 carrying a plate 16 on which are mounted four armatures 42 co-operating with two perpendicular pairs of diametrically located coils 50 on U-shaped cores 46, each pair of coils constituting one pair of arms of a bridge circuit. Lateral movement of the stylus 8 deforms the diaphragm 14 to produce corresponding movement of the armatures 42, and an output from each of the two bridge circuits proportional to the x and y components of the lateral movement. Vertical movement of the stylus 8 is resisted by the thickness of the diaphragm 14. The inner stylus 10 is held rigid against horizontal movement by two diaphragms 23, 28 and carries at its upper end an armature 85 movable between normally balanced secondary windings of a transformer 86, so that an output signal from the series opposing secondary windings indicates in magnitude and phase sense the magnitude and direction of vertical movement of the stylus 10. The outer stylus 8 may be provided with a tracing wheel 98, and the inner stylus 10 with a tracing tip 99. The three signals may be fed to a tool to produce a three-dimensional copy of the surface being gauged.
Patent GB-1182193-A (GB)
Title: Improvements in and relating to Screwing-Up Machines.
Inventor: GAVIN ANDRE
IPC: B25B23/145
Filed: 1967-08-11
Abstract: 1,182,193. Screwing-up machines. SOC. DES. AUTOMOBILES SIMCA. 11 Aug., 1967, No. 36911/67. Heading B3N. A screwing-up machine comprises a plurality of screwing-up heads 1, Figs. 1, 2, each of which has a torque detector 34, and an alarm 43, which latter is operated automatically when the desired torque is not reached by one of the heads. Each of the heads 1 is supplied with pressurized air from a common chamber 5 through a passage 58, and each head is releasably connected to a casing 8 by a two-part clamp 47, 54. A piston 18 is slidable in the easing and, a plunger 21 is adjustably secured in the piston by a nut 23 and screw 22. An air distributer 26 forms part of each casing 8, an air feed passage 27 provides a common supply to all of the distributers, and passages 29, 45 are also common for all distributers, and are attached to the casings 8 by blocks 46. In operation, the heads are lowered on to the components to be tightened, and a control 74 is actuated. Air passes from pipe 71 to pipe 76 and thence via a valve 83 to fill a delay store 86, and on to a distributer 81. So long as the pressure of air supplied from store 86 to pipe 85 is high enough, air is supplied through pipe 82 to chamber 5. Air passes from the chamber through pipes 89, 91, and 92 to distributers 63, 64, and through a constricted pipe 93 to distributer 64. The air supplied to distributer 63 cuts off the air supply through pipes 70 and 45, to an audible signal device 43. Air from pipe 92 passes through distributer 64 and pipe 95 to distributer 65, which places the upper side of piston 18 open to atmosphere, the bottom side being connected to pressurized air through pipes 27, 25. Piston 18 moves upwardly, to open an aperture 14 and air enters passage 58 to drive the head. Air passing through restriction 93 operates distributer 64, which opens pipe 95 to atmosphere. When the minimum screwing-up torque has been attained, detector 34 brings one side of distributer 26 under atmospheric pressure acting through pipes 33, 31, so that passage 25 is open to atmosphere, and passage 24 is pressurized. Piston 18 moves down, and aperture 14 is closed to interrupt the air supply to the head, and stop the latter. If the torque has not been attained, detector 34 does not operate, and air continues to escape from chamber 5 through the head, but when the air is exhausted from store 86, the air ceases to act through pipes 89, 91 on distributer 63. The flow of air through pipes 70, 45 is restored, and air is supplied to the audible signal 43 through passages 42, 41.
Patent GB-768586-A (GB)
Title: Improvements in or relating to method of refining oil with a selective solvent
Inventor: GROSS HOWARD HALCOMB
IPC: C10G21/00
Filed: 1954-12-21
Abstract: Oil containing aromatic and nonaromatic hydrocarbons is subjected to solvent extraction by contacting the oil in an extraction zone with liquid furfural, containing water in an amount no greater than that which would saturate furfural at 75-125 DEG F., to form a raffinate and an extract phase; distilling each phase in separate zones to form azeotropic mixtures of furfural, water and hydrocarbons; condensing the azeotropic mixtures and separating therefrom in a settling zone an upper hydrocarbon-rich phase, and intermediate water-rich phase and a lower furfural-rich phase containing dissolved water; and recycling the furfural-rich phase to the extraction and distillation zones.  The water-rich phase may be distilled to yield a water-furfural azeotrope which may be combined with the furfuralrich phase.  Extract and raffinate phases are separated from the distillation zones.  The settling zone is maintained at 75-125 DEG F.; the upper portion of the extraction zone may be at a temperature of 120-140 DEG F. and the lower portion at 85-100 DEG F.  The lower portions of the fractionation zones may be maintained at 550 DEG F. The treatment of cracked or virgin gas oil is described.
Patent GB-1141373-A (GB)
Title: Friction clutch for motor vehicles
IPC: F16D13/46
Filed: 1966-08-18
Abstract: 1,141,373. Friction clutches. LUK LAMELLEN UND KUPPLUNGSBAU G.m.b.H. 18 Aug., 1966 [19 Jan., 1966], No. 36946/66. Addition to 1,048,172. Heading F2C. A diaphragm spring-engaged friction clutch for motor-vehicles comprises a built-up flywheel secured to an engine crank-shaft (not shown) and consisting of a disc 3 bolted at 8 to a hub 2 and formed with radial spokes 22 through which ribs 20 on a pressure plate 9 project to locate and support the outer edge of a diaphragm spring 25, the spokes 22 being formed with axially extending bosses 4 on which fit grooved lugs 11 formed on and extending radially beyond the outer periphery of the pressure plate which is located and axially guided thereby, the bosses also serving to space and secure a flywheel rim 5 by bolts 6 passing therethrough. The diaphragm spring is fulcrumed on beaded edges 26, 27 formed on the flywheel disc 3 and cover-plate 28 respectively, and is released by the usual throw-out bearing 29, piloted compression springs 33 between the pressure plate and flywheel rim serving to positively lift and separate the pressure plate from a clutch disc 15 on clutch disengagement.
Patent GB-1082897-A (GB)
Title: An electromagnetic switch device
IPC: H01H51/10
Filed: 1965-08-27
Abstract: 1,082,897. Electrically-released switches; electromagnetic switches. TEIZO FUJITA. Aug. 27, 1965 [Aug. 31, 1964], No. 36985/65. Heading H2B. A switch has a support member 21 carrying movable contacts 23 (one shown), an operating electromagnet with an armature 5, a latch 25 interconnecting the member 21 and the armature 5, and overcurrent responsive means 28 to actuate the latch 25 to release the member 21 from the armature. When the latch is released, the contacts separate more rapidly and to a greater extent than occurs when the contacts are opened by de-energizing the operating electromagnet. Also, when the contacts are opened by the release of the latch, an indication is given by a part 21a which is then visible through a window 37a in a push-button 37. Depression of the push-button 37 to reset the latch is necessary before the contacts 23, 19, 20 can be reclosed by energizing the operating electromagnet. Auxiliary contacts 12, 13 may be operated by the armature and other auxiliary contacts (not shown) may be operated by the support member 21. The overcurrent responsive means may be an electromagnet 28 as shown, and it may be provided with a time delay by means of an hydraulic device or by a thermal relay. Alternatively a bi-metallic tripping device may be provided,
Patent GB-1451923-A (GB)
Title: Storage devices
IPC: G11B23/023
Filed: 1973-08-03
Abstract: 1451923 Storage stands HANCOCK CORFIELD & WALLER Ltd 14 Oct 1974 [3 Aug 1973] 37092/73 Heading A4T [Also in Division B8]  A storage device, e.g. for tape cassettes, comprises a casing 10 and at least one holding unit 34 for receiving a cassette 41, the unit 34 being movable by lever action from a storage position to a retrieval one in which the cassette 41 is accessible. A series of units 34 may be pivotable on a rod 31, keys 38 being depressible to project the cassettes 41 to the retrieval position, while they return to the storage position under gravity. Resilient tongues 44 on the units 34 serve to retain the cassettes 41.
Patent GB-1087921-A (GB)
Title: A sorting machine
IPC: B07B13/00
Filed: 1964-09-11
Abstract: 1,087,921. Sorting food products. K. M. ALLEN. Sept. 11, 1964 [Sept. 11, 1963], No. 37208/64. Heading B2H. A machine for sorting potato crisps or potato chips according to size comprises a number of discs 52, 53 which are mounted on shafts 54-61 to be rotated therewith in the same direction, adjacent discs being spaced from each other at such a distance that chips or crisps of a certain size can drop between the adjacent discs whereas chips or crisps of a greater size not adapted to pass between adjacent discs are advanced past the rows of discs. The discs 52, 53 are polygonal in shape and are spaced apart by sleeves 64, 65, 75 which are secured against the discs by nuts 70 threaded onto the shafts. The latter are jornaled in nylon bearings 76, 80 having annular grooves 82 which receive the edges of the flanges of angle members 20, 24 so as to be slidable along the guideway formed by these flanges. The positions of the shafts 56-61 along the guideway may be adjusted by means of pairs of cams 86 which are concentric with the bearings 80 and engage spacer discs 78 associated with the bearings 76. The cams 86 are integral with pairs of actuating arms 90, 92, 94 pivotably connected to a pair of parallel links 106 by pins 100, 102, 104. Cables 110 are connected to the pins 104 and to a capstan shaft 36 which may be rotated in one direction or another by means of a handle 42. The shafts are drivingly interconnected by a system of elastic belts and pulleys and are driven by a motor 111 through a speed reducer 112. When sorting potato crisps 170, the latter are fed to a chute 28 and are conveyed toward the right, by the discs 52, 53 and the sleeves 64, 65. Small and broken particles drop between the discs and the lower end of the chute and between the spacer sleeves on the shafts 54, 55 on to the left-hand portion of a conveyor 14. As the remainder of the crisps are fed toward the right all those which are too wide to drop between the discs or too long to drop between the spacer sleeves are advanced by the discs and sleeves beyond the shaft 61 and drop on to the right-hand portion of the conveyor 14, whereas the smaller crisps drop between the discs and the sleeves on to the left-hand portion of the conveyor. When sorting potato chips, the shafts 56 to 61 are adjusted to space the peripheries of the spacer sleeves 64, 65 apart such distances that the short chips will pivot around one of the sleeves and drop between the sleeves whereas chips above the minimum length will always span portions of three adjacent sleeves and be discharged to the right-hand end of the machine. The discs 52, 53 serve to comb the chips to cause them to extend in the direction of travel.
Patent GB-450601-A (GB)
Title: Improvements in gas pressure regulators
IPC: G05D16/06
Filed: 1934-12-31
Abstract: 450,601. Pressure-regulating valves. MILLS, G., 724, Pacific Highway, Gordon, near Sydney, Australia. Dec. 31, 1934, No. 37332. Convention date, Jan. 4. [Class 135] In a gas-pressure regulator comprising a valve 19 actuated by toggle mechanism 17, 18 from a diaphragm 13 subject to the gas pressure, an additional diaphragm 8 is provided, which in the event of leakage through the main diaphragm, is raised by the gas pressure so as to release a catch normally holding a spring 31 in a compressed condition, so that the spring acts to close the valve 19. The spring 31 normally is compressed between a toggle-centre member 15 and a disc 32 fixed to a stem 29 extending through the hollow spindle 12 fixed to the diaphragm 13 and member 15. A.hookshaped upper end on the stem 29 is caused to engage a slot 30 in the spindle 12 by a finger 28 on a disc 25 fixed to the diaphragm 8 which is loaded with weights 34 and subject to atmospheric pressure on its upper surface. The finger 28 releases the hook when the diaphragm 8 is lifted due to leakage of gas and the spring 31 forces the disc 32 against the bottom of the casing 6 and the member 15 upwardly to close the valve 19. The stem 29 passes into the spindle 12 through a gland held in place by a spring 37. Specification 390,062 is referred to.
Patent GB-327196-A (GB)
Title: Apparatus for use in road making and repairing
IPC: E01C19/18
Filed: 1928-12-18
Abstract: 327,196. Horne, B. Dec. 18, 1928. Surface treatment with liquid materials; surfacelevelling machines. - A road making and repairing machine is provided with a reservoir 12 for supplying cold emulsion or hot bituminous liquid to a spraying device 21, a hopper 25 and means 31, 32 for distributing grit, and screed devices 34, 35, preferably in V-formation, for levelling the surface. The invention is shown applied to the machine for supplying and distributing grit described in Specification 303,453, the surfacing liquid being supplied to a pipe 19 which sprays the liquid on to the vanes of a rotary paddle 21 surrounded by a shield 24 and disposed in front of the gritting-rollers 31, 32. An inclined rotary brush 11 sweeps' the road in front of the spraying device. A roller (not shown) may be attached to the rear of the machine to consolidate the deposited road material.
Patent GB-1369329-A (GB)
Title: Bolts
IPC: F16B33/04
Filed: 1973-07-30
Abstract: 1369329 Applying predetermined tensions to bolts ELECTRICITY COUNCIL 30 July 1973  [10 Aug 1972] 37426/72 Heading F2H A bolt to be maintained in use at a predetermined tension comprises a shank 10 threaded at one end and having a radial flange 12 at the other end and a shank extension 13 projecting beyond the flange 12, a cup 25 with its open end loosely fitting over the flange 12 and its bottom surrounding the shank 10 between the flange 12 and the one end, a compression spring 21 around the shank 10 between the cup bottom and the flange 12, the shank extension 13 having a threaded end part 16 and, between this threaded part and the flange 12, a weakened neck (18) (Fig. 1, not shown) to fracture at a predetermined tension and/or torsion load in excess of said first-mentioned tension, and an auxiliary head 17 (e.g. a nut) internally threaded to engage the shank extension 13 so that it overlies the flange 12 and the rim of the cup 25, either the auxiliary head 17 being shaped to receive a spanner, or the cup 25 and flange 12 being non- circular so that torque may be applied to the flange 12 by using a spanner on the cup 25. The rim of the cup 25 is deformed inwardly to fit over a frusto-conical surface on the flange 12 to retain the cup on the flange. The spring 21 is a stack of disc springs immersed in grease. During manufacture, the assembled bolt, less the auxiliary head 17, is loaded to the first-mentioned predetermined tension and the top surface of the flange 12 and the rim of the cup 25 are machined flush with each other. In use, the bolt shown, which has an annular cup 25 and flange 12, and a hexagon nut 17 forming the auxiliary head is screwed into a workpiece (or a nut is engaged-on the threaded shank which has been inserted through a workpiece) until it is finger tight. Tightening proceeds using a spanner on the nut 17. At the first-mentioned predetermined -tension the nut abuts the cup lip. The torque on the spanner is then increased until the neck (18) breaks. The bolt is then at the predetermined tension, indication of this being given by the flange 12 top surface being substantially flush with the cup rim. The spring-loading between the flange and the cup, pressing the cup on a workpiece, also serves to hold the bolt against slackening due to vibration &c. In a modification (Figs. 3, 4, not shown) the auxiliary head is circular and the flange (40) and cup (41) may be hexagonal or square for engagement by a spanner. Using a spanner on the cup, the bolt is tightened until firstly the auxiliary head, which is finger-tight against the flange, abuts the cup rim, and secondly the neck breaks to release the shank extension and auxiliary head.
Patent GB-623073-A (GB)
Title: Improvements relating to the working and shaping of metal by pressing, drawing and like operations
IPC: B21C9/00
Filed: 1946-12-19
Abstract: 623,073. Stamping; rolling. BIRMETALS, Ltd., GOODWIN, H., CELLON, Ltd., and WILSON, W. F. Dec. 19, 1946, No. 37454. [Class 83 (iv)] In a metal-working process comprising pressing, deep drawing or rolling, the work is first coated with a film or skin of tough, flexible and elastic material which maintains its continuity over the surface and resists being stripped'off by the tools during working, but remains capable of being peeled from the surface when required. Suitable coating material comprises vinyl chloride or acetate polymers or copolymers of vinyl chloride dissolved in a ketone solvent such as acetone, methyl isobutyl ketone, cyclohexanone or methyl-cyclo-hexanone. The solution may also contain plasticizers such as tricresyl-phosphate. A regenerated cellulose such as can be deposited from a carbon disulphide dispersion may also be used. A proportion of a suitable lubricant such as graphite may be incorporated in the film. The applied film is from 0.001 to 0.002 inches in thickness. Specifications 396,284 and 551,353 are referred to.
Patent GB-1183658-A (GB)
Title: Spindle Driving Mechanism.
Inventor: SCRIVEN ERIC THOMAS
IPC: D02G1/06
Filed: 1968-08-06
Abstract: 1,183,658. Spindle driving mechanism. E. T. SCRIVEN. 6 Aug., 1968, No. 37480/68. Heading D1D. A spindle 15 is driven by fractional contact with the inner surface of a rotating cylindrical member 12, the spindle being held against the surface by a freely rotatable guide roller 14 which is adjustably mounted in relation to the cylindrical member 12. An auxiliary, freely rotatable, roller 19 is preferably provided which is in contact both with the guide roller and the surface so as to rotate the former and relieve the torque load on the spindle. Both rollers are supported, together with the spindle, on an arm 17 which is movable transversely to the rotational axis of the member 12. The spindle may be a false twist spindle including a cross pin, in which case the lower part of member 12 is of annular convex shape so as to move the yarn, which enters through shaft 22, around its own axis, to assist the false twist action 1.
Patent GB-1138741-A (GB)
Title: Electrophotographic method
IPC: G03G15/22
Filed: 1966-08-22
Abstract: 1,138,741. Electrostatic images. INTERNATIONAL BUSINESS MACHINES CORP. Aug.22, 1966 [Oct.24, 1965], No.37517/66. Heading G2H. A latent electrostatic image is formed at the interface between a photo-conductive layer and a dielectric layer in a material by imagewise exposing the photo-conductor and residual charge on a surface of the material is subsequently removed. In a first embodiment, the surfaces of a member consisting of a photo-conductive layer and a dielectric layer are equally, uniformly electrostatically charged, the photo-conductive layer is uniformly exposed, the surfaces of the member are subjected to a corona discharge equal to and of opposite sign to that which they first received or only the photo-conductive surface is so treated, the dielectric surface being contacted with a metal plate, the photo-conductive layer is imagewise exposed, and residual charge on the photo-conductive surface is removed. In the second embodiment, the surfaces of a member comprising a photocondutive layer sandwiched between two dielectric layers are equally, uniformly electrostatically charged to opposite potentials, the photo-conductive layer is exposed imagewise, and residual charge on one of the surfaces is removed by passing the material between a conducting roller and an insulating roller. The latent image may be used to prepare a plurality of copies by repeatedly sequentially applying toner by a magnetic brush to an uncharged surface of the member, which may be an endless belt, and contacting this surface with a receiving sheet whilst applying a corona discharge. The image may be erased by simultaneously exposing and applying a corona discharge to the member and removing the toner with a brush.
Patent GB-860838-A (GB)
Title: Improvements in or relating to spools for holding lengths of tape or the like
Inventor: PHILLIPSON ALAN
IPC: B65H75/28
Filed: 1958-11-21
Abstract: 860,838. Tape spools. DECCA RECORD CO. Ltd. Nov. 25, 1959 [Nov. 21, 1958], No. 37599/58. Class 120(3) A double-flanged spool for holding tapes comprises a clip 13, fitted to one flange, for gripping the end of the tape on, or adjacent, or within a recess in the surface of the drum. The clip comprises a member 14, pivotally mounted (at 15) about an axis at right angles to the spool axis, and at a tangent to the drum surface, and spring-urged to lie against the surface of the drum. Latch 25 holds member 14, against the spring force, away from the drum surface when a push button 17 is depressed. In order to disengage the latch 25 from the shoulders of push button 17, a push button 29 is depressed whereupon a spring 21 moves the arm of the member 14 into a position securing the tape to the spool.