baber/WOPTO huggingface dataset:
Patent GB-828247-A (GB)
Title: Miniature variable capacitor
Filed: 1957-03-11
Abstract: 828,247. Variable condensers; couplings between relatively movable conducting parts. SHEN, T. E. March 7, 1958 [March 11, 1957], No. 8012/57. Classes 37 and 38 (1). A variable condenser (of the self-heating type), some at least of the electrodes are thin films of metal and are coated with dielectric. A plate is shown in Fig. 3 comprising an insulating plate (e.g. mica, thermosetting resin impregnated cellulose, glass fibre, asbestos or other sheets, ceramic, glass) metallized to form an electrode C, for example by vacuum evaporation or sputtering, by chemical decomposition from vapour of a metal compound or by bonding a thin metal foil. The electrode is then covered with dielectric, except area A, such as polystyrene, polythene, polyethyleneterephthalate, p.t.f.e., epoxy resins, silicone resins, vinyl acetal based enamel, oleoresinous enamel, ceramic loaded thermoplastic, thermosetting resins or vitreous enamels. Different shapes of capacitor plates are described including a plate provided with two separate electrodes on one face. An insulating liquid or grease may be employed between rotors and stators as a lubricant, and the capacitor may be sealed in a liquid or grease filled container. An assembled variable capacitor is shown in Fig. 12c, stator plates 21 carrying electrodes 17 and dielectric layers 16 and rotor plates 30, 31, electrodes 51 and dielectric layers 41. Connection between electrodes 51 and rotating shaft 13 is ensured by spring washers 9 (Fig. 13a), and that between electrodes 17 and metal studs 14 by spring washers 12, a spring 15 maintaining a constant pressure between rotor and stator plates. In another embodiment (Fig. 14, not shown) the stator plates are not coated with dielectric so that the capacitance can be altered by demetallization of the electrodes, Alternatively the two outer stator plates may be made of metal and provided with radial cuts. In yet another embodiment (Fig. 15, not shown) each electrode is divided into two areas each with a different thickness of metallization. Specification 453,939 is referred to.
Patent GB-122107-A (GB)
Title: An Improved Stemming or Tamping Tool for use in Mining, Quarrying and like Operations.
Inventor: MCCAFFERTY JOHN
IPC: F42D1/16
Filed: 1918-05-14
Abstract: 122,107. McCafferty, J. May 14, 1918. Blasting.-A. stemming or tamping tool coidprises a rod a with a reduced end a<1> on which is slidably mounted a part b with a cut-away portion b' which receives the stemming &c. material for insertion into the bore-hole. A disk c, with a groove for the passage of a wire, fuse, &c., prevents detachment of the part b. The opposite end of the rod may be reduced and carry a scraper f.
Patent GB-1499887-A (GB)
Title: Device for varying the gas exit area of an exhaust nozzle in a jet deflecting device
IPC: F02K1/00
Filed: 1975-02-26
Abstract: 1499887 Variable area nozzles MOTORENUND TURBINEN-UNION MUNCHEN GmbH 26 Feb 1975 [2 March 1974] 8099/75 Heading F1J [Also in Division B7] A propulsion-jet deflector located at the downstream end of the jet pipe 1, Fig. 2, and including two-pipe sections 2, 3 rotatable relative to the jet pipe and to each other, is provided with a device for varying the gas exit area of the exhaust nozzle 4. The device includes a nozzle-actuating motor 35 arranged on the jet pipe, a first ring gear carrier 45 rotatably mounted on the pipe section 2 (and/or the jet pipe 1), a flexible drive 50 having a driving gear 54 at its upstream end and a driven gear 57 at its downstream end, a second gear carrier 56 rotatably mounted on the pipe section 3, and gears 60, (61), Fig. 3 (not shown), and actuators (62), 63, 68, Fig. 5, responsive to rotation of the second gear carrier to adjust the nozzle flaps. The flap adjustment is effected by the movement of a roller 72 of the actuator 68 axially of the nozzle, the roller engaging a cam surface 73 on the outer surface of the flap.
Patent GB-1484450-A (GB)
Title: Needling machine for manufacturing endless fibrous webs
IPC: D04H18/02
Filed: 1976-03-01
Abstract: 1484450 Needling machine E FEHRER 1 March 1976 [3 April 1975] 08116/76 Heading D1R [Also in Division B5] A needling machine suitable for laminating non-woven webs to the inside and outside of an endless woven fabric 10 comprises a plurality of juxtaposed needling units 3 mounted in a row extending the working width of the machine and jointly driven by flexible couplings 4, a perforated stripper 5 and a perforated web support 9 which is mounted on or forms part of a table 7 which is pivoted about a vertical axis (8, Fig. 1, not shown) at one end and releasably locked at the other end, and a second set of needling units 3a disposed in the table. The units 3a may have couplings 4a, stripper plate 5a and support plate 9a identical with those in the upper assembly. As shown a web supplied from roll 11 is needled to the outside of continuous fabric 10 by the needling units 3 whilst a second web supplied by roll 11a is needled to the inside of the fabric 10 by the lower units 3a. The table is unlocked and swung about vertical axis (8) to remove the resultant endless paper-maker's felt and supply a new fabric 10.
Patent GB-1531803-A (GB)
Title: Braking correction device
IPC: B60T8/26
Filed: 1976-03-01
Abstract: 1531803 Dual proportioning or limiting valves SOC ANON DBA 1 March 1976 [1 April 1975 10 Oct 1975] 08118/76 Heading F2F A braking correction device comprises two correcting (proportioning or pressure limiting) valves each associated with respective circuits of a dual circuit braking system and each including a piston 16 or 18, inlet 28 or 30, outlet 32 or 34 and projection 48 or 50 of piston 16 or 18 contacting one face of a common rocker member 46, the other face of the rocker member contacting a diametrical surface of an incompressible elastomeric block 42 having the shape of a half body of revolution, the block 42 and rocker member 46 together being rotatable in a complementary cavity of a rigid element 40 about axis Z-Z<1>, the rigid element 40 being coupled to an input member 36 whose movement is subject to a return spring 58 but may also be associated with variation in vehicle loading. The device may also operate to compensate for slight pressure drop in one circuit caused by leakage or to initiate a substantial pressure increase in one circuit on failure of the other. Each valve comprises a part hollow piston 16 or 18 slidable in bore 12 or 14, the internal bore 20 or 22 housing a ball 21 or 23 biased on to a valve seat but normally raised from the valve seat by a projection of an abutment 24 or 26 to allow a restricted flow from inlet to outlet. Thus movement of either piston to the left as shown in Fig. 1 caused by rotation of rocker and block caused either by a pressure difference across the other piston or by increased pressure through input member 36 causes ball 21 or 23 to lift further from its seat allowing increased flow to increase outlet pressure but movement to the right shuts the valve.
Patent GB-1448342-A (GB)
Title: Wiper assemblies particularly fo headlamps
IPC: B60S1/52
Filed: 1974-02-22
Abstract: 1448342 Cleaning head-lamp lenses ANDERSON CO 22 Feb 1974 [26 April 1973] 8277/74 Heading A4F A wiper system, particularly for cleaning a vehicle head-lamp lens, comprises a wiper arm 67 integral with a backing strip 68 carrying a wiper element 74, the arm 67 being mounted on spaced portions 64, 64a of a bifercated bracket 18 secured to a drive shaft 50, the portions 64, 64a being at different angular positions relative to the shaft 50 and means, such as motor 41 and gearing being provided for oscillating the shaft 50. The illustrated embodiment has two wiper arms and elements arranged for cleaning the lenses of twin head-lamps, the wiper arms 67 being mounted by a bolt 71 on a common bracket-tab 64 and each having an aperture 70 receiving a lug 65 on a bracket-leg 64a. Washing liquid is supplied through a flexible supply pipe 60 to nozzle openings 27, 28 in a nozzle 25 which oscillates with the drive shaft 50. Each wiping element 74 comprises wiping strips 74 hinged to a head portion 81 which is secured by projections 83 in slots 77 in a backing strip portion 68 of the wiper arm 67. A further embodiment comprises a wiper arm and blade assembly 120 Fig. 10 (not shown) arranged for cleaning a single head-lamp lens and provided with a nozzle (196) which discharges washing liquid always in front of the moving wiping strips 82 as these hinge to and fro. Specification 1448343 is referred to.
Patent GB-477148-A (GB)
Title: Improvements in or relating to methods of incorporating cellulose ethers in vegetable and mineral oils
IPC: C08L1/26
Filed: 1936-03-20
Abstract: A process for incorporating cellulose ethers in mineral oils and vegetable oils other than essential oils comprises dissolving the ether in a fatty acid under heat and then mixing the solution with the oil.  In a modified process, a volatile solvent for the ether is added to a mixture of the ether and fatty acid, or the fatty acid is added to the ether which has been partly or wholly dissolved in the solvent.  The mixture is heated until the solvent is evaporated and the ether is dissolved in the fatty acid, and the solution is then mixed with the oil.  The products may be used as plasticizers for resins or cellulose derivatives, may be worked up to oil colours or varnishes, and may be incorporated in rubber &c. as claimed in Specification 477,268.  In examples: (1) a plasticizer is prepared by adding castor oil to a solution of triethyl cellulose in oleic acid; (2) a plasticizer is prepared by adding castor oil and a hydrocarbon oil to triethyl or tribenzyl cellulose dissolved in oleic acid; and (3) a product adapted to be worked up to an oil colour or varnish is prepared by mixing a paste consisting of triethyl or tribenzyl cellulose, benzol and acetone with oleic acid, evaporating off the solvent, and adding boiled linseed oil containing siccatives.ALSO:A process for incorporating cellulose ethers in mineral oils and vegetable oils other than essential oils comprises dissolving the ether in a fatty acid under heat and then mixing the solution with the oil.  In a modified process, a volatile solvent for the ether is added to a mixture of the ether and fatty acid, or the fatty acid is added to the ether which has been partly or wholly dissolved in the solvent, the mixture is heated until the solvent is evaporated and the ether is dissolved in the fatty acid, and the solution is then mixed with the oil.  The products may be used as plasticizers for resins or cellulose derivatives, may be worked up to oil colours or varnishes, and may be incorporated in rubber &c. as claimed in Specification 477,268.  In examples (1) a plasticizer is prepared by adding castor oil to a solution of triethyl cellulose in oleic acid, (2) a plasticizer is prepared by adding castor oil and a hydrocarbon oil to triethyl or tribenzyl cellulose dissolved in oleic acid, and (3) a product adapted to be worked up to an oil colour or varnish is prepared by mixing a paste consisting of triethyl or tribenzyl cellulose, benzol and acetone with oleic acid, evaporating off the solvent, and adding boiled linseed oil containing siccatives.
Patent GB-1086237-A (GB)
Title: Wax compositions of improved flexibility
IPC: D21H19/18
Filed: 1966-02-25
Abstract: Wax coating compositions for coating fibrous sheet material such as paperboard comprise 70-99% by weight microcrystalline wax, 1-30% polyethylene, and 2-40% solid petroleum hydrocarbon resin having a softening point in the range 158-230 DEG  F., the percentages being based on the total weight of wax + polyethylene.ALSO:Wax coating compositions for coating fibrous sheet material such as paperboard comprise 70-99% by weight microcrystalline wax, 1-30% polyethylene, and 2-40% solid petroleum hydrocarbon resin having a softening point in the range 158-230 DEG  F., the percentages being based on the total weight of wax + polyethylene. The polyethylene may be a wax grade, M.W. 2000-15,000, or preferably a plastics grade, M.W. 15,000-100,000.  The resin is that obtained commercially by polymerizing olefin mixtures recovered from petroleum cracking.ALSO:Wax coating compositions for coating fibrous sheet material such as paperboard by, for example, the curtain coating technique comprise 70-90% by weight microcrystalline wax, 1-30% polyethylene, and 2-40% solid petroleum hydrocarbon resin having a softening-point in the range 158-230 DEG F.  No disclosures of coating are given.
Patent GB-889944-A (GB)
Title: Improvements in or relating to apparatus for controlling the unwinding of thread from cops and the like
IPC: B65H57/22
Filed: 1958-03-17
Abstract: 889,944. Unwinding thread. REINERS, W. March 17, 1958 [April 3, 1957], No. 8454/58. Addition to 831,952. Class 120(2) The apparatus described and claimed in parent Specification for controlling the unwinding of a thread from a cop at a thread winding station is modified in that means to support a plurality of cops 3 from which thread is unwound in turn, is provided at each station and there is also provided a single thread balloon preventing device 8 comprising one or more members engageable by the thread being unwound from the cops. The device 8 may be a ring with internal protuberances, a flat disc with or without protuberances or a pyramidal shaped member, the internal or external surfaces of which engage the thread. The cops are preferably arranged to be inclined so that their axes meet at a common thread guide 4 and the thread is linked from one cop to another so that unwinding is continuous.
Patent GB-710941-A (GB)
Title: Improvements in and relating to electric heating elements
Inventor: COCKE KENNETH JOHN RALLINGS
IPC: H05B3/48
Filed: 1951-04-12
Abstract: 710,941. Sheathed wire heating resistance. HOTPOINT ELECTRIC APPLIANCE CO., Ltd. April 7, 1952 [April 12, 1951], No. 8540/51. Drawings to Specification. Class 39 (3) A sheathed wire element comprises a resistance wire surrounded by compacted insulating material enclosed in a multi-layer metal tube formed by coiling layers of one or more sheets or strips of metal or alloy in a direction perpendicular to the long edges of the strip or sheet. Thus the tube may be formed from a single metal strip rolled into a multi-layer tube, the layers being hermetically joined by furnace brazing using preferably copper as a bonding metal. The inner layers of the tube may be of steel with an outer layer of nickel or stainless steel. A spiral resistance wire is mounted in the tube, which is then filled with magnesium oxide or with metallic magnesium converted into magnesium oxide in situ, the tube being finally swaged to compress the insulation. A copper film forms on the inside of the tube during brazing and prevents rusting. An external film of copper on the tube is advantageous when the element is cast into an aluminium alloy to form the base plate of an iron. The metal for the outer layer may be given an ornamental finish or polish or may be chosen to withstand atmospheric vapours. The tube may comprise two or more layers each formed from strips of the same metal and brazed together.
Patent GB-438511-A (GB)
Title: Improvements in or relating to spectrophotometers
IPC: G01J3/42
Filed: 1934-03-19
Abstract: 438,511. Photometric apparatus. HILGER, Ltd., A., 98, King's Road, Camden Road, London, and PINEO, O. W., 60, Main Street, Milo, Maine, U.S.A. March 19, 1934, No. 8635. [Class 97 (i)] Relates to spectrophotometers in which the light-reflecting &c. power of a specimen is compared with that of a standard by using polarized light with a flicker device for varying the illumination of the specimen and that of the standard in a complementary manner. According to the invention the planes of polarization of the two beams by which the specimen and standard are illuminated are caused to rotate or oscillate together and the beams are then passed through a stationary polarizing device so that they emerge with a fixed plane of polarization and varying intensity to give the required flicker illumination of the specimen and standard. To enable the tests to be carried out in substantially monochromatic light from any desired part of the spectrum, the illuminating beams are derived from a monochromator. In the form shown, light passing through the exit slit 1 of the monochromator is received by a Nicol prism 2 from which it emerges as a plane polarized beam. It then passes through a Wollaston prism 3 and emerges as two beams polarized in planes at right-angles to each other and slightly divergent, the relative intensities of these beams being variable by rotating the prism 2 about the optical axis. The beams from the prism 3 pass through a rotating half-wave plate 4 which produces periodically varying retardations of the beams, with a phase difference of 90‹ between them. The beams then enter a fixed Nicol prism 5 and emerge with the same fixed plane of polarization but with intensities which vary in a complementary manner, owing to the abovementioned phase difference. They are then passed through part lenses 6 to increase their divergence and enter an integrating sphere 8 to fall on the specimen 9 to be tested and a standard 10. Light leaves the sphere 8 through a window 11 to fall on a photoelectric cell for detecting the flicker, the amplified current from the cell being preferably used to operate means for rotating the prism 2 until the cell is equally illuminated by the specimen 9 and standard 10. Means are described for automatically adjusting the width of the slit of the monochromator as the slit is moved along the spectrum, in such a way that in all positions the wave-length range, or the vibration frequency range, of the light passing through the slit is the same.
Patent GB-385573-A (GB)
Title: Cop feed mechanism for winding frames
IPC: B65H67/02
Filed: 1931-03-20
Abstract: 385,573. Feeding cops to and delivering empty cop tubes from winding- machines. REINERS, W., 214, Bahnstrasse, Gladbach, Munich, Germany. March 20, 1931, No. 8648. Convention date, March 21, 1930. Void [Published under Sect. 91 of the Acts]. [Class 120 (iii).] An endless belt, chain, or like conveyer extends along the sides of a winding-machine for transporting cops from a container to enable the operative readily to place them on the creel pegs, and for carrying away empty cop tubes, the cops being automatically transferred from the container to holders on the conveyer. As shown in Fig. 2, belt conveyers 1, disposed one at each side of the winding-frame, are provided with pegs or cups 4 for the cops and serve to carry empty cop tubes to a receptacle at the end of the machine. Guides 6, 7 are provided to prevent the tubes from falling off. A single conveyer may be arranged to pass completely around the machine, or a chain conveyer may be used comprising links each having an upstanding peg for a cop. The plane of the conveyer may be vertical, the lower edge being provided with brackets 1a, Fig. 4, which serve to carry the empty tubes, or the guide 6 may be shaped to form a trough along which the tubes are carried by means of drivers on the conveyer. As shown in Fig. 7, a belt 1, with pegs 3, is twisted so as to run vertically at the ends and horizontally or inclined at the sides of the machine. Cops 5 in a receptacle 11 with a sloping floor are thrust on the pegs 3 by a carrier 17 on the end of a spring-controlled lever 15 oscillated by a wheel 14.
Patent GB-857225-A (GB)
Title: Apparatus for continuous wet processing of knitted fabrics
IPC: D06B3/16
Filed: 1958-03-18
Abstract: <PICT:0857225/IV (c)/1> An apparatus for the continuous wet treatment, e.g. bleaching or dyeing, of knitted fabrics comprises a line of vats U above each of which is a pair of driven horizontal feed rolls 71, 81, arranged side by side to feed a fabric web W down vertically on to liquor in the vat, the rolls 71, 81 being mounted in a carriage, not shown, adapted to reciprocate over the vat for folding the web in zig-zag and untensioned condition on to the liquor.  Each vat is U-shaped in section, liquor being circulated by a pump from the exit side 17 of the vat by a pipe 16 to a heated chamber 6 and on to the opposite side 13 of the vat through a pipe 15 to provide a flow of liquor around the bottom of the vat, to assist the folds 11 of the web W to traverse the vat as indicated.  A pair of spray pipes 12 may be associated with each carriage and they may be fed with liquor from the vat by a pump.  Driven squeeze rollers 20, 21, one hard and one relatively soft, remove the web from the vat.  The rolls 71, 81, of each vat but the first are slightly spaced apart.  A movable partition may be provided in the vat to vary the width.
Patent GB-547118-A (GB)
Title: Garments for male or female wear
IPC: A41D1/02
Filed: 1941-07-12
Abstract: 547,118. Jackets &c. BOWES, R. L. July 12, 1941, No. 8831. [Class 141] Flaps a are stitched along lines a<SP>1</SP> to the inside of a jacket and held by buttons a<SP>2</SP>, a<SP>3</SP> engaging button holes a<SP>2</SP>x, a<SP>3</SP>x, but are adapted to be swung forward and secured by buttons and buttonholes to simulate a waistcoat.
Patent GB-289243-A (GB)
Title: Improvements in or relating to boxes or cartons
IPC: B65D5/50
Filed: 1927-03-31
Abstract: 289,243. Barnes, G., and Hasler, Watson, <&. Co., Ltd. March 31, 1927. Boxes formed from special blanks; fittings, internal; contents, testing. - A box or carton for an electric lamp, valve &c. is formed from a blank folded to give a tubular body 5, end-closing flaps 8, 8<a> and internal flaps 10 apertured at 13, 14 to receive and support the ends of the lamp which is passed through the central hole 18 in a detachable or removable web 16 having flaps or flanges 17 engaging the sides of the box to retain the web in position and the edges of the hole 18 being formed with flexible tongues 18<a> to allow for variations in the diameter of the lamp and, when bent, to provide a substantial bearing surface therefor. The lamp may be tested while in the carton by opening the top flap 8 and inserting the lamp contacts in a holder when the lighted lamp may be viewed through a hole or tarnsparent part 15 in the flap 8<a>. Additional webs may be disposed along the length of the lamp, if necessary.
Patent GB-469844-A (GB)
Title: A new and improved spring suspension for motor vehicles or the like
IPC: B60G11/04
Filed: 1936-03-25
Abstract: 469,844. Vehicle spring-suspensions; laminated springs. LAWTON, A. March 25, 1936, No. 8843. [Classes 108 (ii) and 108 (iii)] A spring suspension for motor vehicles &c. comprises a quarter-elliptic spring 1 and an auxiliary spring 2, adjacent ends of which are secured together to the vehicle chassis, the other end of the spring 2 being pivotally connected to one end of a lever 3 connected at its other end to a vehicle axle 5, and the other end of the spring 1 being also connected to the lever by shackles 4, the arrangement being such that when the axle 5 lifts it causes the lever 3 to depress the spring 2 which acts as a shock-absorber.