baber/WOPTO huggingface dataset:
Patent GB-653529-A (GB)
Title: Improvements in or relating to textile fabrics
IPC: D03D15/00
Filed: 1948-01-21
Abstract: A textile fabric composed in part of fibrous material which is resistant to feebly alkaline solutions, e.g. 1 per cent ammonium hydroxide or sodium carbonate, and in part of yarn consisting wholly or in part of fibres of the aluminium salt of a cellulose ether of a hydroxy fatty acid, is treated with an alkaline solution of insufficient alkalinity to affect the resistant fibrous material until some or all of the other fibres have dissolved.  The treatment results in a fabric of lighter weight and of more open texture.  In an example, wool fibre is spun to form a fine worsted yarn and this yarn is then doubled with a continuous filament yarn of aluminium carboxymethyl cellulose. The resulting composite yarn is woven into a fabric which is subsequently treated with a 1 per cent ammonium hydroxide solution at 18 DEG  C. for five minutes.  The cellulose ether yarn is dissolved leaving the worsted yarn in position in the fabric.  In another example, a yarn is produced by twisting together with a counterclockwise twist a fine aluminium carboxymethyl cellulose yarn with a wool yarn of the same degree of clockwise twist so that in the composite yarn the wool yarn has zero twist.  The composite yarn is then woven, and is used for both warp and weft. The cellulose ether component is then dissolved out by treatment with a 1 per cent sodium carbonate solution at 20 DEG  C.  The fabric obtained has a soft handle and lustrous appearance and is composed entirely of untwisted wool strands.  Specifications 384,436, 550,525 and 584,911 are referred to.
Patent GB-666707-A (GB)
Title: Improvements in ridging ploughs
IPC: A01B35/18
Filed: 1949-01-24
Abstract: 666,707. Agricultural implements. FORD MOTOR CO., Ltd., BYWATER, J. E., and COOK, K. A. Oct. 18, 1949 [Jan. 24, 1949], No. 1912/49. Class 6(i) A ridging plough comprises ridge guide rollers 5 which are mounted in telescopically engaging sleeves 6, 7, secured by a pin 8 in order to hold the rollers in spaced relation. A superstructure 11 mounted in a frame 1 is reversible so that the implement may be fitted to linkage on the front or rear of a tractor.
Patent GB-283967-A (GB)
Title: Improvements in or relating to thermionic valves and their method of application
IPC: H01J1/13
Filed: 1928-01-20
Abstract: 283,967. Radiotechnique. Jan. 21, 1927, [Convention, date]. Vacuum tubes.-Thermionic cathode filaments directly heated by alternating current are of length greater than 5 mm. and less than 12 mm., and the voltage between their supports is less than 0.7 volts, hum being thus eliminated. The cathodes are of material with high emission at low temperatures, for example, have oxide coatings working below 1400‹ K. The filament may be a nichrome wire, 8 mm. in length and 0.06 mm. in diameter covered with barium oxide, this filament operating at 0.15 amps and 0.5 volts. Several filaments may be connected in parallel. The circuits of the other electrodes are connected to the central points of the cathode or to a point of the cathode circuit equipotential to this central point, for example, the centre of a transformer secondary or of a resistance. The cathodes may be used in two-grid valves and in valves for detection, high and low frequency amplification, heterodyning and change of frequency in radio receivers. Specification 282,727 is referred to.
Patent GB-606850-A (GB)
Title: Improvements in terminal structures
IPC: H01P1/08
Filed: 1946-01-21
Abstract: 606,850. Two-part couplings. SPERRY GYROSCOPE CO., Inc. Jan. 21, 1946, No. 1983. Convention date, Jan. 20, 1945. [Class 38 (i)] A terminal structure for connecting a coaxial line to a high-frequency apparatus comprises a unit subassembly including two coaxial concentric conductors fitting in a predetermined position in the interior of a post mounted on the apparatus, the structure receiving a concentric line at its end remote from the apparatus. As shown, the loop 72 extending into a resonator is secured to the reduced end 62<11> of a conductor 62 sealed in a conducting sleeve 60 by glass 64, the sleeve 60 being in turn secured in the post 39 vacuum sealed into the wall 42 of the resonator. The inner conductor 62 has a reduced portion 74 to bend and thereby absorb distorting forces which might otherwise harm the glass-metat sleeve. The external connection consists of concentric conductors 51, 53 respectively engaging the post 39 and the upper portion of conductor 62, the latter terminating in a plug engaging a socket at the end of conductor 53. Specifications 523,712 and 554,574, [both in Group XL], are referred to.
Patent GB-1110263-A (GB)
Title: Improvements in control apparatus for electric circuits
Inventor: MILLINGTON ARTHUR RICHARD
IPC: H05B37/02
Filed: 1966-01-15
Abstract: 1,110,263. Two-part couplings. PROCESS UNITS (HALIFAX) Ltd. 12 Jan., 1967 [15 Jan., 1966], No. 2011/66. Heading H2E. [Also in Division G1] A photo-electrically operated switch for controlling lighting in response to ambient illumination comprises a plastics translucent cone A housing three photo resistors d<SP>2</SP> (only one of which is shown) and associated circuitry upon a base c, which is attached to the cone by screw-in plugs and contains a printed circuit upon its underside-making connection with the plugs. A base member B contains sockets b<SP>4</SP> to receive the plugs and to which are connected supply cables entering the base member via a channel b<SP>5</SP> threaded for mounting the whole structure. The photo resistors are fed with rectified A.C. and in day-light conditions turn-on a pair of transistors to operate a relay which releases as daylight falls to a value predetermined by the circuit to switch on the lighting.
Patent GB-582166-A (GB)
Title: Ultra high-frequency electron discharge tubes
IPC: H01J25/08
Filed: 1941-02-14
Abstract: 582,166. High - frequency discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd., and GOODCHILD, F. D. Feb. 14, 1941, No. 2024. [Class 39 (i)] In a high-frequency discharge device, such as the velocity - modulated tube described in Specification 537,490 comprising a length of coaxial conductor, the resonator is mount - ed on a copper plate 12 by means of a screw 25 and distance piece 26; the plate has attached pins 11 which enter holes in a spider 21 fixed to the base 20 carrying the contacts 22. Pins 11 carried by the glass end 9 bear on these contacts, correct entry of the pins &c. being assured by the key way 34. The plate 12 is slotted to allow for expansion. The outer conductor of the resonator is made of sections 1, Fig. 1, riveted together and having integral fins 4; rods 30, 31 form the inner conductor and have mushroom heads to which the outer conductor is fixed. Mica end plates 14, 15 receive rods 13 carrying the cathode, a control grid and a molybdenum anode 8 ; this has a hole though which electrons pass to a collector electrode used in the alignment of the electrodes in the resonator, when a magnetic field is used.
Patent GB-731192-A (GB)
Title: Improvements in or relating to overspectacles
IPC: G02C9/04
Filed: 1953-01-26
Abstract: 731,192. Goggles. JAMESON, Ltd., W., and JAMESON, W. March 25, 1954 [Jan. 26, 1953], No. 2214/53. Class 97 (1). In a frame bearing sunglasses or the like to be clipped to spectacles and comprising two rims formed by a connecting-bar, the latter is secured to at least one of the rims by clamping its end between wedging elements urged longitudinally into a tubular lug on the rim by a grub screw engaging a screw thread in the lug. As shown, the wedging element comprises a tapered plug or collet 21 slotted diametrically to form two connected wedging elements 22 between which the end of the connecting bar 24 is inserted. The lug 16 connected to the lens rim 10 has a frusto-conical portion 18 which engages the elements 22, and as the plug 21 is pressed inwards by the screw 23, the portion 18 causes the elements 22 to grip and hold the end of the bar 24. The other end of the bar may be similarly secured 'to the other rim or may be soldered thereto. The rims carry clips for attachment to spectacles.
Patent GB-799980-A (GB)
Title: Improvements relating to electric circuit arrangements
Inventor: STOKES JOHN ARTHUR
IPC: H03C1/58
Filed: 1955-01-26
Abstract: 799,980. Phase-sensitive circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 18, 1956 [Jan. 26, 1955], No. 2379/55. Class 38 (4). In a circuit providing a cyclically varying output 3, Fig. 2, at O, Fig. 1, which is either in phase or in antiphase with respect to a reference voltage applied to the primary of a transformer T2 and has an amplitude dependent on the amplitude of a control voltage applied to resistor R1, the control voltage regulates the mark to mark + space duration ratio of the output of a rectangular wave generator RG, in the manner described in Specification 761,785, [Group XXXVIII], and the output which is applied to rectifier networks RB1, RB2, in which the rectifiers are biased by the reference voltage from secondaries al, a2, b1, b2 of transformer T2, produces in the secondary of transformer T1 a waveform in which the rectangular wave is amplitude-modulated by the reference voltage, 2. Frequency components purtaining to the rectangular waveform are removed by filters R, C. The use of modified bridges comprising two rectifiers and resistors is referred to.
Patent GB-650327-A (GB)
Title: Improvements in or relating to operating winches for dragline excavators
IPC: B66D1/80
Filed: 1948-01-28
Abstract: 650,327. Winches. RUSTON-BUCYRUS, Ltd. Jan. 28, 1948, No. 2551. Convention date, Feb. 5, 1947. [Class 78 (v)] [Also in Group XXI] A winch for a drag-line excavator which can be converted into a winch suitable for a power shovel comprises a driven rotating shaft 45<1> on which are mounted freely-revolving sleeves 85, 86 separated by a freely-rotatable spider 46<11> in which is journalled planet gears 61<1> meshing with bevel gears 52<1>, 53<1> formed on the sleeves 85, 86. Each sleeve may be driven from the shaft 45<1> through clutch units 51<1>, 541 and may each be separately controlled by brake units 501, 581. On the sleeves 85, 86 are concentrically-mounted split drums 82, 83. To convert the winch to one suitable to operate a power shovel, the drums 82, 83 are disconnected from the sleeves 85, 86 and bolted to the spider 46<11> which is provided with a brake 78<1>. A driving'sprocket 371 is secured to the sleeve 86. In a modified construction, the brake 78<1> is omitted and when converting the winch from one suitable for a drag-line excavator to one suitable for a power shovel, the two split drums are replaced by a single drum in meshing contact with the spider. Specification 593,673 is referred to. The Specification as open to inspection under Sect. 91 comprises also a further winch of modified construction but operating similarly to the above. This subject-matter does not appear in the Specification as accepted.
Patent GB-216489-A (GB)
Title: Improvements in sweeping machines
IPC: E01H1/08
Filed: 1924-01-31
Abstract: 216,489. L÷vstrand, J. P. J. May 24, 1923, [Convention date]. Void [Published underSect. 91 of the Act]. Sweeping-machines.-One or more pipes 20 are arranged behind the brush 5 so that an air blast may be directed on to the road sursurface to blow away the dust prior to tarring. The dust is either blown beneath the brush or out to the side of the road surface. The blast is derived from a centrifugal blower 18 driven from the road wheels 3 of the machine. A shield 22 prevents the dust resettling on the road surface.
Patent GB-215071-A (GB)
Title: Improvements in or relating to apparatus for collecting or transmitting sound
IPC: G10K13/00
Filed: 1923-01-30
Abstract: 215,071. Clutsam, r. Jan. 30, 1923. Drawings to Specification. Sound-box cases; horns, arranging and supporting. - The lower section of a. phonograph &c., horn, subdivided into tapering passageways, may be formed integral with the casing of the device with which it is to be employed, whilst, according to the Provisional Specification, the back wall of the sound-box may have a number of perforations, spaced a part and all enclosed within the end of tihe horn.
Patent GB-1107341-A (GB)
Title: Paper
Inventor: WALTERS HAROLD A
IPC: B44F1/14
Filed: 1966-01-21
Abstract: Iridescent synthetic thermoplastic resin elements in the form of thin sheets or films are made by the simultaneous extrusion of a plurality of layers of diverse thermoplastic resin materials and subsequently stretching the extrudate until the thickness of the composite sheet and layers therein are reduced to a desired level.  Alternatively the composite sheet is made by depositing a plurality of diverse thermoplastic resin materials on a substrate and subsequently stretching them from the substrate.  The materials can be deposited using solvents which are solvent for only one of the materials. Desirably the composite sheet is 0.25-10 mils thick and contains at least 10 layers of diverse p  resin materials.  Each layer is 0.05-5 thick and adjacent layers differ in refractive index by at least 0.03 so as to give the iridescent effect.  There can be 100-500 layers in the film for maximum iridescent effect.  Iridescence-producing layers can be bonded by transparent layers.  Pieces of the iridescent film are incorporated into a paper pulp to produce an iridescent paper.ALSO:A paper has incorporated therein a plurality of thermoplastic synthetic resin elements each of which comprises a transparent body composed of a plurality of generally parallel synthetic resin layers which produce iridescence in the paper.  At least 20% of the layers have a thickness of 0.05-5 and adjacent layers differ in refractive index by at least 0.03 iridescence producing layers may be bonded together by transparent layers.  The resin elements may have a thickness of 0.25 to 10 mils and may contain at least 10 layers, e.g. 100-500.  The elements can be in the form of fibres filaments circles or rectangles or random shapes.  The paper may be black, coloured or white and be made from kraft, cotton fibres, fur, asbestos, glass or cellulosic and/or synthetic fibres. The paper is made by mixing a slurry of the elements and fibre pulp, felting then drying.  The paper pulp may contain 2-50% (dry wt.) of the resin elements.  The paper can be made to show iridescence only on one side.
Patent GB-455913-A (GB)
Title: Improvements relating to wall plugs
IPC: F16B13/02
Filed: 1935-01-29
Abstract: 455,913. Wall plugs. RAWLINGS, J. J., and RAWLPLUG CO., Ltd., Cromwell Road, South Kensington, London. Jan. 29, 1935, No. 2843. [Class 89 (i)] Wall plugs of fibrous material are provided at one end with a rim or flange b to prevent the plug being thrust entirely into the hole into which it has been inserted. The flange may be integral with the shank of the plug or may take the form of a metal cap e with flange f attached to the shank. The cap may take the form of a wire bent in zigzag formation. The plug may be composed of strings or cords laid side by side and held by an adhesive &c., or fibrous material mixed with suitable material may be brought to tubular form by extrusion through dies or material which is naturally of a strongly fibrous nature such as wood or cane may be employed.
Patent GB-487490-A (GB)
Title: Improvements in and relating to laminated driving belts
IPC: F16G5/16
Filed: 1938-01-31
Abstract: 487,490. Driving-belts. WHITTLE, O. L. Jan. 31, 1938, No. 2944. [Class 80 (i)] Relates to belts made from similarly shaped laminations or strips arranged in steps and secured together by bolts and nuts passing through holes in the strips. According to the invention each strip has a circular hole 7, 8, or a transverse series of such holes, near each end thereof and one or a transverse series of non-circular holes or slots 9 intermediate the end holes, the intermediate holes or 'slots having their axis in the direction of length of the strip. The strips are held together by bolts 10 having a nut 12 bearing on a washer 11. In Fig. 5, a construction of wide belt is shown in which transverse series of holes, e.g. 9, are provided, and outside each washer 11, in the form of a wide strip, are metal plates 12a which give transverse rigidity and prevent the sides from turning up.
Patent GB-490903-A (GB)
Title: Improvements in covers for loose leaves bound by rings
IPC: B42F13/00
Filed: 1938-01-31
Abstract: 490,903. Covers for loose leaves. PRACHE, A. Jan. 31, 1938, No. 2970. [Classes 16 and 146 (i)] A cover for pads, books, or similar bundles of loose leaves c held or bound together by rings a inserted through marginal slots in the leaves comprises a pair of panels 1, 2 connected by a back portion 4 formed with spaced apertures 5 through which the rings project, and a retaining member adapted to be threaded through the projecting parts of all or some of the rings so as to secure the cover to the pad. The retaining-member may consist of a rod or strip 7 of metal or celluloid having a hooked-end 8 for frictionally engaging the edge of the back or a suitable latch to form retaining means. A leather thong, a string, or a chain may be used in place of the rod 7. Fastening means for the cover can be provided consisting of press buttons, or a tape or string threaded through marginal holes.
Patent GB-1351586-A (GB)
Title: Blood cell particle counting apparatus having automatic display and threshold setting
IPC: G01N15/12
Filed: 1971-04-22
Abstract: 1351586 Particle counting apparatus GENERAL SCIENCE CORP 22 April 1971 [28 April 1970] 3104/73 Divided out of 1343465 Heading G1N The subject matter of the specification is disclosed in the Specification 1343465 but the claims are directed to a blood cell counting system in which red and white blood cell coded sample flasks are provided which when connected into the system set the appropriate decimal point indicator of a plurality of digit indicators of the counter and the multiplier indicator of the associated cell count.
Patent GB-874538-A (GB)
Title: Improvements in or relating to mechanical toy gear mountings
IPC: A63H29/20
Filed: 1957-01-30
Abstract: 874,538. Toy drive mechanisms. DICKINSON, E. N., DICKINSON, D. R., and DICKINSON, J. A. Jan. 30, 1958 [Jan. 30, 1957], No. 3202/57. Class 132(3). A flywheel drive unit for a toy motor car or the like includes a live axle 12 formed from hexagonal rod. The axle engages -in a complementary boxed boss 18a of a gear 18 which is driven bya flywheel 11  through gears 16, 15 and a bar 13 having a gear tooth profite.
Patent GB-982935-A (GB)
Title: Improved vacuum cleaner
IPC: A47L5/36
Filed: 1961-01-27
Abstract: 982,935. Vacuum cleaners. ELECTROLUX Ltd. Jan. 27, 1961 [Jan. 28, 1960], No. 322/61. Heading A4F. [Also in Division H2] A vacuum cleaner comprises a motor fan unit 3 (Fig. 2) embedded in a semirigid cellular plastics material forming the structural housing of the cleaner. The housing also houses a dust receiver 4 and is enclosed by a shock absorbing and sound reflecting outer layer of material 5 e.g. plastics or rubber. The outer layer is only a covering and is not a structural supporting member. The walls of chambers 6 containing the motor unit and dust chamber are lined with tubular metal or hard plastics inserts embedded during moulding of the housing and the motor unit may in addition be attached by rubber suspension members 7a. A blowing opening 11 formed by a metal or plastics ring 11b embedded in the housing has a removable air filter 12. A similarly formed suction opening 8 is provided having a rotatable connection 15 for a suction hose. The cleaner may be provided with a harness 21 (Fig. 1) for carrying on the back of a person and the housing may have a projection to carry a cable reel 18.
Patent GB-265608-A (GB)
Title: Improvements in adjusting mechanism for variable electric tuning devices
IPC: H03J1/08
Filed: 1927-02-04
Abstract: 265,608. British Thomson-Houston Co., Ltd., (Assignees of Langley, R. H.). Feb. 4, 1926, [Convention date]. Wireless tuning-apparatus, adjustment devices for.-A series of tuning devices are provided with means for frictionally coupling their dials and means for individually operating each dial, the operating-means being separately disengageable and permitting all of the devices to be adjusted by any one of the operating-means. As shown, condensers are mounted on shafts 6, 10 secured to indicator drums 7, 11. The drums are connected by an adjustable spring friction clutch 31, 32 and are provided with toothed peripheries 9, 13 which project through on plate 13<1> secured to the panel 12. The fine adjustment mechanism comprises worms 25, 26 mounted on a plate 21 which is pivotally carried at 22 in a bracket 17 secured to the panel. The worm handles 24, 28 are rocked upwards in slots 15 for disengagement of the worms from the teeth 13, coarse adjustment of either one or both of the drums being effected by hand.
Patent GB-127292-A (GB)
Title: Improvements in Chronotelemetrical Apparatus for use in Regulating the Firing of Anti-aircraft Guns.
IPC: F41G5/08
Filed: 1917-03-05
Abstract: 127,292. Maison BrÚguet, and Routin, J. L. Dec. 6, 1915, [Convention date]. Addition to 127,280. Electric speed indicators operating by sighting aerial objects; velocity components, measuring - Consists in modifications of the devices for obtaining the correction due to speed of target in the anti-aircraft gunnery apparatus described in the parent Specification. The angular speed of the target is measured by a magneto driven at a speed proportional thereto, and the corresponding reading in a voltmeter of the E.M.F. is reduced proportionally to the time of flight of the projectile, so as to obtain a direct reading of the angular speed and the time of flight. In the construction shown in Fig. 1, the effect of the magneto 1 on the voltmeter 2 is reduced by periodically breaking the circuit by a rapidly rotating drum 3 having a projecting contact surface bounded on one side by a helix so that the duration of the closing of the circuit can be made proportional to the time of flight by adjusting the brush 4 axially along the drum. In a modification, the E.M.F. of the magneto for a determined speed is reduced by displacing the brushes of the armature coil of the magneto through an angle. In another modification, Fig. 4, the magnetic flux of the voltmeter 2 is modified by displacing a magnetic member 3 about an axis 4, the amount of displacement being indicated by a pointer 7. The reading of the voltometer may also be reduced by shunting the voltmeter with a variable resistance, or by a potentiometer.
Patent GB-1340173-A (GB)
Title: Method of forming an elastomeric gasket
IPC: F16J15/14
Filed: 1972-01-24
Abstract: 1340173 Joint-making packing THIOKOL CHEMICAL CORP 24 Jan 1972 [3 Feb 1971] 3269/72 Heading F2B A method of sealing a pair of mating flanges or other members forming part of a structure which normally operates at an elevated temperature of at least 200‹ F. with an elastomeric gasket comprises the steps of interposing a solid mouldable polyacrylate sealant (e.g. in the form of an O- section strip), pressing the flanges or other parts toward one another, and operating the structure at the elevated temperature to convert the sealant to elastomeric form. The invention is applicable to forming a seal in situ between the flanges of the oil sump or rocker arm cover gasket of an automotive engine normally operating at 250‹-350‹ F. The initial position of the sealant and flange 16 is shown by dotted lines; when the flanges are drawn together, the sealant spreads between the flanges and into any groove  20 which may be provided.