baber/WOPTO huggingface dataset:
Patent GB-570602-A (GB)
Title: Improvements in and relating to the dyeing of nylon fibres
IPC: D06P1/56
Filed: 1943-11-18
Abstract: A water-insoluble condensation product of formaldehyde and cyanamide or a derivative thereof as herein defined is incorporated in nylon fibres to enable them to be dyed at an enhanced rate of absorption with direct cotton dyestuffs from an acid bath.  The cyanamide derivatives used are dicyandiamide, melamine, guanidine, biguanide, dicyandiamidine and alkyl, hydroxyalkyl or aryl substitution products of guanidine, biguanide and dicyandiamidine.  The cyanamide or its derivatives may be used in the form of their salts.  The incorporation is advantageously effected by padding the nylon with an aqueous liquor containing per litre not more than 20 grams of the condensation product.  The dyeings exhibit good fastness to washing and light.  In examples: (1) a nylon fabric is padded at room temperature with an aqueous solution containing sym.-diphenylguanidine, acetic acid and formaldehyde, squeezed, dried at under 100 DEG  C. and heated at 140 DEG  C. for 10 minutes, prior to immersion in a dyebath at 90 DEG  C. containing Chlorazol Fast Pink BKS and acetic acid, dyeing being continued at this temperature for 1 hour; (2) a nylon fabric is padded with an aqueous solution containing dicyandiamide and formaldehyde and is further treated and dyed as in (1); (3) a nylon fabric is padded with an aqueous solution containing guanidine adipate and formaldehyde, and is further treated and dyed as in (1) with Chlorazol Black BHS; (4) scoured bright nylon yarn is padded with an aqueous solution containing monoethanol biguanide neutral sulphate and formaldehyde and is further treated and dyed as in (1). Specification 547,844 is referred to.
Patent GB-1325835-A (GB)
Title: Continuously operating agitator ball mill
IPC: B02C17/16
Filed: 1972-04-26
Abstract: 1325835 Agitator mills W A BACHOFEN [trading as WILLY A BACHOFEN] 26 April 1972 [1 March 1972] 19369/72 Heading B2A A disc-type separator prevents egress of grinding balls from an agitator mill. The mill includes an annular stator assembly 4, 6, 20, 24 with a first annular member 45, a rotor shaft 15 coaxial with the stator assembly a second annular member 47 mounted on the rotor shaft and rotatable therewith, mutually facing surfaces of the two members defining a gap, 46 a demountable spacer member 43 axially locating the second annular member relative to the rotor shaft and means viz a space 11 and connections 9, 10 to direct a coolant to the stator assembly so as to cause it to contact axially relative to the rotor shaft and increase the width of the gap. A disc 30 mounted on the shaft 15 throws any grinding stock outwards so that it drains away via an opening 31. Lubrication is supplied to the apparatus via bores 32a..b. The grinding receptacle 40 is sealed against the stator by clamps not shown, and includes a jacket and charging neck 40a. The balls used may be e.g. 0.1 mm for use in grinding bacteria and yeasts by agitation with an agitator shaft 41 and disc(s) 50. Ground material passing the gap 46 passes into a space 35 and thence leaves via a bore 34a into a collecting nipple 34. The drive for the rotor shaft may be automatically disabled in response to excess temperature.
Patent GB-323765-A (GB)
Title: Improvements in the electrolytic deposition of alloys
IPC: C25C1/24
Filed: 1928-07-04
Abstract: 323,765. Leech, B., and Hammond, F. July 4, 1928. Cables with inductances, capacities, and the like.-An alloy Containing nickel and iron in the proportion 77.2:22.8 is used in loading cables. It may be deposited directly on the copper, or other conductive core by electrolysis; drawing of the composite cable may be effected after the deposition.
Patent GB-147575-A (GB)
Title: Improvements in the frame construction of motor vehicles
IPC: B60G11/06
Filed: 1920-07-08
Abstract: 147,575. Industrial Research Corporation, (Assignees of Belden, E. H.), July 22, 1918, [Convention date]. Frame components, sections and forms of, and applying and combining; radius-rods. - The frames of motor and like vehicles are constructed with longitudinal members of various lengths to suit the wheel base, fitted to standardized curved end members which are shaped to facilitate the attachment of the springs and to serve as supports for the radiator and the motor. In the construction shown in Figs. 1 and 2, longitudinal channel bars 20 are connected to curved end members 23, which are Z-shaped in crosssection and are arranged so that the upper flange projects outwardly from the framing at each end. The ends of the upper flange are seated upon the longitudinal frame members. and the abutting vertical walls of the side and end members are welded, riveted, or otherwise connected in assembling the frame. Inwardly-projecting lugs on the lower flanges of the end members may be used to support the radiator and the motor. The outer ends of the front springs 13 are pivoted in yokes 61 mounted on pins passing through the axle, while the inner ends are bolted to the upper flange of the end frame members. The bolts pass through a bridge-piece 37 and are utilized also as connexions for flexible plates 59 which form with the springs parallel motion devices adapted to prevent underturning of the axle. The holes in the springs through which the bolts pass are bushed by tubes with swaged ends which maintain the plates of the springs in juxtaposition prior to assembling. U-shaped clamps 40, with screw-and-nut mechanism at the end of each limb, may be used as additional connexions between the springs and the frame. The rear springs are secured similarly to the rear end frame, but are pivoted at their outer ends to projections on the rear axle casing. The central portion of the upper flange of the front end member may be bent upwardly and shaped as shown in Fig. 10 to support a block 73 forming a bearing for the shaft 74 of the starting- handle. The block is bolted to the flange 23 and further secured in position by the bolt 75.
Patent GB-478314-A (GB)
Title: Improvements in or relating to the generation and transmission of high frequency currents in a.c. circuits
IPC: H03B19/03
Filed: 1936-07-14
Abstract: 478,314. Electric control systems. HALLOWELL, E., and NORTHERN UTILITIES TRUST, Ltd. July 14, 1936, No. 19538. [Class 40 (i)] High-frequency current is generated and superposed on A.C. power mains 10, 11 by a circuit comprising a saturated inductance 14 and a further inductance 16 in series, one or other or both of the inductances being tuned by condensers such as 18 to produce the harmonic frequency and the arrangement being switched in shunt across the power mains when generation and superposition are desired. The condenser 18 may be replaced by several condensers selectively switched in to vary the harmonic frequency and further control may be effected by taps on the inductances 14 and 16. Condenser 18 may be coupled to the coil 14 by a secondary winding on the same core 15. The arrangement may be applied in triplicate to three phase mains. Alternatively the two series connected inductances may be connected across one pair of phases or between one phase and neutral and a secondary coil coupled to the winding 14 is connected at one end to the neutral and at the other end through a separate condenser to each of the three phase lines. The condensers are tuned to give the desired harmonic. In a modification of this arrangement, Fig. 3, the coil 30 coupled to the saturated coil 14 is tuned by a series condenser 36 and connected across a further saturated coil 35 which is connected at one end to neutral and at the other end through condensers 32, 33, 34 to the separate phase lines. The coil 35 and condensers 32, 33, 34 are tuned to a higher harmonic than the coil 30 and condenser 36.
Patent GB-994627-A (GB)
Title: Method and apparatus for purifying gases or vapours
IPC: B03C3/66
Filed: 1964-05-11
Abstract: 994,627. Electrostatic precipitators. METALLGESELLSCHAFT A.G. May 11, 1964 [May 11, 1963], No. 19554/64. Heading B2J. An asymmetrical alternating voltage is applied between two electrodes in an electrostatic precipitator 4, the ratio of the amplitudes of two consecutive half cycles of the A.C. being such that the charge built up on the precipitated dust on the collecting electrode during a half cycle is discharged during the following half cycle of smaller amplitude. The circuit from a transformer 1 contains a half wave rectifier 2 shunted by an impedance such as an ohmic resistor 3 which is adjustable for varying the said ratio. The rectifier and resistor may be provided on either the H.T. or earthed side of the precipitator 4.
Patent GB-577209-A (GB)
Title: Improvements in caging mechanism for gyros
IPC: G01C19/26
Filed: 1943-11-23
Abstract: 577,209. Gyroscopic apparatus. BENDIX AVIATION CORPORATION. Nov. 23, 1943, No. 19582. Convention date, Oct. 26, 1942. [Class 97 (iii)] A universally-mounted gyro-vertical has caging and centralizing means operated by the release of a single previously-strained resilient element to effect movement about either or both horizontal axes. The resilient element is strained by means of an electric motor and the caging operation may be automatically initiated by rotor power failure or by excessive movement of the carrying craft and provision is also made for manual control, which may be remote. The gyro rotor, mounted within a case 10 may be driven pneumatically or electrically and may be maintained with its spin axis vertical in the manner described in Specification 441,439. The case 10 is supported for oscillation on trunnions 12, 13 within a gimbal ring 11 mounted on trunnions 14, 15. A caging pin 16 and loops. 17, 18 are secured to the gyro case. The gimbal ring carries further loops 19, 20. Caging bails 21, 22 are loosely mounted on trunnions 14, 15 and when rotated from an horizontal position to the position shown, cage the gyro by gripping the caging pin 16. This movement is effected by a coil spring 63 operating through trains of gearing terminating in toothed sectors 74, 75. The coil spring is normally retained in the tensioned condition by a T-shaped bar 79 pivoted on a bracket 78, but is liberated to effect the caging when a balltrigger 85 is displaced laterally from beneath a rod 82 attached to the T-shaped bar. The spring is re-wound and the caging bails are raised by a motor 32 operating through trains of gear wheels as shown. To uncage the gyro, a knob 34 is pulled out to the full line position shown, thereby closing a contact 37 and energizing the motor 32. A circuit bridging element 49 driven by the gear train breaks the motor circuit and a solenoid 38 is de-energized so as to release a catch lever 40 and allow the knob 34 to snap inwardly, at the same time opening the contact 37 and stopping the motor. Before the gear train is arrested, a cam 97 depresses the T-shaped bar 79 to allow the ball-trigger 85 to reset and the spring 63 to be locked against unwinding. If a predetermined angle of bank or pitch of the aircraft is exceeded the loops 19, 20, or 17, 18 engage and trip the ball trigger 85 thus releasing the T-shaped bar 79 and allowing the spring 63 to cage the gyro. In the event of a power failure, a solenoid 101 is de-energized and a spring 107 attached to the solenoid plunger causes a trip pin 106 to unseat'the trigger 85 and thus initiate a caging operation. If 'the gyro is driven pneumatically, a failure causes the gyro to lose speed and precess until one of the loops 17 ... 20 trips the ball trigger 85 thereby effecting caging. If it is desired to cage the gyro by remote manual control, a knob 113 is pushed in to break the circuit of the electromagnet 101.
Patent GB-724095-A (GB)
Title: Improvements in admission manifolds for internal combustion engines
IPC: F02M1/00
Filed: 1951-08-20
Abstract: 724,095. Charge-forming devices induction pipes ; spray carburetters. TISSIER, R. H. Aug. 20, 1951 [Sept. 16, 1950 ; Aug. 2, 1951], No. 19626/51. Classes 7 (2) and 7 (3). A permeable member 7, Figs. 1 and 2, lining with general clearance an induction manifold 2, forms an inner manifold chamber 6 which communicates directly, through individual openings in the member 7, with entrances of cylinder mixture-intake passages a<SP>1</SP>, air or combustible mixture from an inlet 4 in the manifold 2 being drawn into the chamber 6 through the member 7 to promote charge mixing and fuel vaporization. As shown, fuel injected into the chamber 6 through a nozzle 9 is controlled in correspondence with air drawn into the manifold 2 under the control of a butterfly valve 5, by a valve 16 operated by a diaphragm 13 subjected on opposite sides through passages 14, 15 to the pressures upstream of a Venturi 12 and at the throat of a Venturi 11. A stabilizing diaphragm 16d is provided subjected to the fuel supply pressures on either side of an orifice 16a. The member 7 may be wholly of metal gauze, the fineness of which may be uniform or variable, or partly of gauze and partly solid. Instead of gauze, perforated fabric may be used. Extra-air admission holes 10, the relative size of which are determined during engine timing, are formed in the member 7. In a modification the fuel supply is controlled in correspondence with the air supply by a mechanical link between the valve 5 and a fuel supply pump control. In Fig. 3 the invention is applied to the tapering induction manifold of a six-cylinder engine. Where the fuel nozzle is dispensed with, combustible mixture from a carburetter being supplied past the butterfly valve, the member 7, Fig. 6, is cylindrical and rests on the also cylindrical manifold 2 so that unvaporized fuel deposited on the manifold runs down into contact with the member 7 for subsequent vaporization therethrough, the adjacent portion of the manifold being externally heated if desired as by exhaust gases or hot engine cooling water. In this embodiment, two passages a<SP>1</SP>, each supplying two cylinders, may be employed.
Patent GB-1146782-A (GB)
Title: A strand storing twisting machine with controlled drive
IPC: H01B13/02
Filed: 1967-04-28
Abstract: 1,146,782. Stranding machines. KABEL UND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 28 April, 1967 [29 April, 1966], No. 19653/67. Heading D1T. The invention relates to storage stranding machines of the type in which after the material from reels 6 has passed its stranding point it passes back and forth between spaced sets of wheels 4, 5 rotating about the stranding axis. When the storage stranding machine is full its rotation about the stranding axis is reversed. According to the invention the apparatus includes means 8, 10, 11 for determining when the rotation of the sets of wheels 4, 5 about said stranding axis shall be reversed. The means 8 may be a roller having a coding system on one face, said coding system being monitored by a sensing device feeding a control unit 10 which controls a drive 11. The coding system may be a multidigital code. The roller 8 may be replaced by a take-off device in the form of a continuous band and the digital coding system may be provided on the hand.
Patent GB-947713-A (GB)
Title: Improvements in or relating to drying apparatus
IPC: F26B13/10
Filed: 1960-06-03
Abstract: 947,713. Drying webs. MASCHINENFABRIK FRIEDRICH HAAS G.m.b.H. June 3, 1960 [Feb. 27, 1960], No. 19662/60. Heading F4G. Apparatus for drying a web 1 of fabric comprises carrying the web in short loops (not shown) between bars 16 on a rotating endless chain 2, the bars having a chain wheel 4 secured to the axle 17 of each bar which is engaged by an auxiliary chain 9 to rotate the bars over the tensioned run of the chain. The bars are rotated during further travel of the chain about the driven return roller 11 of the chain to straighten out the loops at the end of the run by means of a guide 10 mounted concentrically on the return roller which engages hub-like rings 3 on the axles of the bars. The web is taken up below the return roller 11 by a further bar chain 13 and lies in short loops on the crossbars 14 thereof, the chain being returned by a wheel 15.
Patent GB-1331593-A (GB)
Title: Noise suppression circuit
IPC: H03G3/34
Filed: 1972-04-27
Abstract: 1331593 Noise suppression circuit HITACHI Ltd 27 April 1972 [30 April 1971] 19709/72 Heading H4F In a noise suppression circuit, particularly for use in suppressing pulse interference 10, Fig. 2, in a video signal rising above the level V, of the sync. pulses, the signal is applied to the base of a transistor 2, Fig. 1, having the total current, shared between its collect/emitter circuit, and a D.C. impedance 5 and diode 6, limited by a constant current circuit 3, whereby, by suitable selection of 5, 6 and 3 the voltage across the base/emitter circuit of the transistor can be made to equal the drop across the diode 6, and the signal, below voltage V 1 , appearing at output 9 has the same level as at the input 1 independent of any temperature coefficient changes. A D.C. restoration circuit 7, 8, allows capacity 8 to charge to V 1  and diode 7 to conduct during each sync. pulse. Diode 6 is reverse biased and switched-off by pulse 10, such that its level is clamped to V 1  as shown at 10<SP>1</SP>. In the circuit of Fig. 3, constant base bias voltage or constant current sources 16, 17, 18, 19 are provided. The video signal at output 21 is separated from the signal of Fig. 2(b) by transistor 13 and the sync. signals after preamplification in 14 and 15 are fed to a peak detector diode 22 to provide a feed track signal for control of IF and HF amplifiers such that the peak value of the sync. signals is kept equal to the base voltage of transistor 15. Fig. 4 (not shown) shows the addition of a noise cancelling circuit which inverts any noise pulse 33, Fig. 5 extending above a higher threshold V 2 , to a pulse 331.
Patent GB-148697-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F01C9/00
Filed: 1919-08-12
Abstract: 148,697. Blackett, G., (Noya & Co., M.). Aug. 12, 1919. Fixed-abutment type; working-fluid supply. - In an oscillating-vane type of internal-combustion engine working on the two-stroke cycle, the motion of the pairs of oppositely moving vanes U is transmitted through rods U' loosely sleeving the shaft G to links P connected to a sliding cross-head J which in turn is connected to the crankshaft G by a rod I.
Patent GB-182701-A (GB)
Title: Improvements in clutch driving mechanism
IPC: D01H1/20
Filed: 1921-07-23
Abstract: 182,701. York Street Flax Spinning Co., Ltd., and Weilding, H. July 23, 1921. Clutches, friction. - A driving-pulley, toothed wheel, or the like B runs loosely on a sleeve c turning with the driven shaft C, with which sleeve it moves axially under the influence of an internal spring E abutting against a collar c' held in position on the shaft by a nut a. The wheel B is retained in position on the sleeve by a collar b screwed to the sleeve c and having a lubricating-duct controlled by a spring valve k and communicating with a duct K in the sleeve. The clutch is disengaged against the spring pressure by a fork f secured on a rocking shaft F and bearing against the collar b. The shaft F is rotated by a lever f<1> actuated by a screwed rod G. To indicate when the clutch is engaged, a pin h on the operating hand-wheel g engages and moves a weighted lever H to a predetermined position.
Patent GB-478267-A (GB)
Title: Improvements in or relating to electrical instruments for signalling on railways
IPC: B61L7/06
Filed: 1936-07-17
Abstract: 478,267. Electric signalling systems. TYER & CO.; Ltd., and KING, V. S. July 17, 1936, No. 19840. [Class 40 (i)] [Also in Group XXX] Signalling-instruments operated by batteries are provided with rectifiers in the line from the battery. With a single rectifier 3, Fig. 1, the transmission of a current of wrong polarity (by reason of the battery 1 being wrongly connected) is prevented. With a rectifier bridge 3 as shown in Fig. 2, the correct current is given whichever way the battery is connected. The current is transmitted by depressing the keys 5a. The received current operates a polarized relay 8, a contact of which energizes a locking relay 7. The rectifiers described in Specification 194,653, [Class 38 (ii)], may be used.
Patent GB-1254187-A (GB)
Title: Improvements in porosity-free calcium containing halophosphate phosphors and processes for their manufacture
IPC: C09K11/08
Filed: 1969-04-18
Abstract: 1,254,187. Luminescent materials. GENERAL ELECTRIC CO. 18 April, 1969 [23 May, 1968], No. 19965/69. Heading C4S. Particulate Ca halophosphate prepared by firing ingredients including Ca phosphate in the form of Ca 2 P 2 O 7  and/or Ca 3 (PO 4 ) 2  with or without Mn and Cd, the ingredients containing no dibasic Ca phosphate has a low specified concentration of porosity as measured by the small amount of scattering of transmitted white light when the particles are suspended in a liquid having the same refractive index as the phosphor. The Ca may be replaced in part by Cd, Sr, Ba, Mg and Zn. Mixtures comprising CaF 2 , NH 4 Cl, CdO, MnCO 3 , Sb 2 O 3 , Ca 2 P 2 O 7  and CaCO 3  or Ca 3 (PO 4 ) 2  are fired in air or N 2  then in air. The Mn and Cd compounds may be reacted with Ca 3 (PO 4 ) 2  first and the resultant fired with CaF 2 , NH 4 Cl and Sb 2 O 3 . Another mixture is Ca 3 (PO 4 ) 2 : Mn and Ca 3 ClPO 4 .
Patent GB-184677-A (GB)
Title: Improvements in and relating to electric selective switches for automatic telephone exchanges and the like
IPC: H01H63/20
Filed: 1921-07-26
Abstract: 184,677. Wilman, C. W. July 26, 1921. Selectors.-In a two-coordinate selector, the wipers are first moved in a circular direction about a fixed axis and then in a circular direction in the same plane about a second axis which itself moves round the fixed axis during the first operation, or the order of the operations may be reversed. A wiper is carried at the common pivot H of arms D, E which are pivoted at F, G to projections from ratchet-wheels A, B on the same shaft C. Driving-pawls S, T are actuated by the armatures Q, R of the controlling-magnet P, one armature R having inertia so that, once attracted, it is not returned by its spring until the long break at the end of a digit. In normal position, the pawl S does not engage the first tooth of the wheel B, thus the first series of impulses drives only the wheel A, whereupon the return of the armature R moves the wheel B one tooth, and further impulses drive both wheels. The other ends of the arms D, E may also carry wipers, three banks of contacts L, M. N being provided. In a modification, each of the three wipers is carried by a separate pair of arms D, E, the inner ends of the wipers moving over connecting segments.
Patent GB-287766-A (GB)
Title: Improvements in and relating to oversocks or undersocks
IPC: A43B23/28
Filed: 1927-07-28
Abstract: 287,766. Giles, W. J. July 28, 1927. Corns, treatment of; foot-arch supports.-An oversock or undersock A worn over or under the stocking or sock in a boot &c. is made of rubber or other waterproof material with pieces of rubber sponge, to relieve pressure, vulcanized thereto under the heel B, over and under the toes D, C, and under the ball of the foot E, the side of the sock being left uncovered. A similar piece of rubber sponge F may be placed under the arch of the foot.