baber/WOPTO huggingface dataset:
Patent GB-1280302-A (GB)
Title: Improvements in servo-steering devices
Inventor: MAZUR ERWIN
IPC: B62D5/24
Filed: 1969-09-22
Abstract: 1280302 Power steering BENDIBERICA SA 22 Sept 1969 46603/69 Heading B7H In a servo steering device of the type having a toothed slidable member 5 acting as a piston with opposed unequal pressure areas, the steering shaft 2 is acted on, in one direction of steering only, by a piston 39 to cause the steering faces applied by the servo fluid to the member 5 to be equalized for both directions of steering.  The piston 39 acts on the shaft 2 via bearings 25, and, in the neutral a straight ahead position of the member 5 and hence shaft 2, abuts a stop 40a whereby the shaft 2 does not experience the action of the piston over one half of the range of movement of the latter. The device includes an axially shiftable valve sleeve 4 for controlling servo fluid flow. Piston 39 is constantly pressurized with fluid entering the device. The device also includes a pressure limiting device (Fig. 2, not shown) which can operate either as a by-pass valve in the instance of a pressure overload, or as a one-way valve permitting cessation of steering assistance, in case of hydraulic failure, and mechanical steering only.
Patent GB-1211600-A (GB)
Title: Photographic shutter with electronic exposure timing device
IPC: G03B7/083
Filed: 1968-10-03
Abstract: 1,211,600. Photographic shutters. PRONTORWERK ALFRED GAUTHIER G.m.b.H. Oct.3, 1968 [Oct.10, 1967], No.46890/68. Heading G2A. A shutter has a reciprocating sector driving member 4 which may be locked in the open position of the sectors by electromagnetic means 17 for a time interval determined by an electronic timing device 37, wherein a control member 25 is associated with the sector driving member and is coupled thereto in the open position of the sectors by a second locking pawl 26, the control member being biased by a return spring 24 and held against the force of the spring by means of a first locking pawl 21 which is moved out of its locking position after the expiry of the time interval determined by the electronic timing device. Depression of shutter release button 12 closes a switch S 1  in the power supply circuit of the timing device 37 which energizes the electromagnet to attract the armature lever 19, pawl 21 temporarily locking control ring 25 in a tensioned position. At the same time, trigger lever 10 rotates clockwise to release a driving disc 6 which under the action of spring 9 accelerates the sector ring 4 through the action of pawl 8 contacting a flap 4a and thus opens the shutter sectors 3. A change-over switch S 2  is operated by the initial movement of sector ring to commence the operation of the exposure determining timing circuit composed of capacitor C and photo-resistor R. At the end of the shutter opening movement, a retaining member 28 strikes a fixed stop 29 and is swung anti-clockwise to allow pawl 26 fixed to the sector driving ring to drop into a recess 25b provided on the control ring 25. At the end of the exposure period, the electromagnet is de-energized to disengage the locking pawl 21 from the control ring 25, which, under the action of spring 24, is now free to rotate anti-clockwise. The sector driving ring, coupled through pawl 26 also rotates anti-clockwise to close the sectors. If an exposure time shorter than the minimum time required for the above operations is required, the electromagnet may be de-energized before the shutter is fully open; the mechanical time-lag inherent in the movement of lever 19 may be sufficient so that control ring 25 does not start moving until the sector driving ring has locked within the control ring in which case the shutter closes as above, alternatively, the control ring may already be moving and in this case the locking action between the driving and control rings does not take place, the driving ring opens the shutter to the full extent, strikes a reflex stop 39 and immediately closes the shutter under the action of spring 14. In a further embodiment, in place of the reflex stop, the pawl 8 is so shaped that it performs the closing function of the shutter by continued rotation of disc 6 unless the driving ring is locked to the control ring.
Patent GB-1267989-A (GB)
Title: Tiller extension and throttle control device
Inventor: FROST IRA NORMAN
IPC: B63H21/21
Filed: 1969-09-24
Abstract: 1,267,989. Outboard motor control; twist grip throttle controls. I. N. FROST. 17 Sept., 1970 [24 Sept., 1969], No. 46969/69. Headings B7E and B7V. A tiller extension 11 and twist-grip throttle control attached to the tiller tube 1 of an outboard motor allow the operator to sit well for ward of the stern. A split-clamp 2 is clamped to tube 1 and receives the sheath 8 of a Bowden cable, the inner cable 7 of which is fixed to sleeve 4, which is rotatable within clamp 2, and operates the motor carburetter. Extension 11 is fixed to sleeve 4 by pin 14 so as to be readily detachable.
Patent GB-1065830-A (GB)
Title: Improvements in or relating to optical masers
IPC: H01S3/102
Filed: 1963-11-28
Abstract: 1,065,830. Lasers. WESTERN ELECTRIC CO. Inc. Nov. 28, 1963 [Nov. 30, 1962], No. 47028/63. Heading H1C. A modulator for polarized light consists of a medium in which a field-dependent anisotropy is induced, the medium having a pair of energy levels corresponding to the wavelength of the light to be modulated and being pumped to invert the populations of the levels so that the anisotropy is negative and the light beam is amplified. The device may be constructed as an amplifiermodulator or an oscillator-modulator. It is shown mathematically that the sign and magnitude of anisotropies such as linear and circular dichroism and birefringence are dependent upon the population inversion between levels in resonance with the light to be modulated. Fig. 4 shows an amplifier-modulator in which polarized laser light is passed through xenon in a quartz tube 11 and the xenon is pumped by a D.C. discharge. Anisotropies are induced by microwaves in a waveguide 19, preferably filled with dielectric to match the phase velocities of the microwaves and the light beam. The anisotropy-inducing modulating field may alternatively be provided by a solenoid or a pair of electrodes, or by a cavity resonant at the modulating frequency. An oscillator-modulator (Fig. 5) is similar except that the ends of the quartz tube are provided with mirrors to form an optical cavity and a polarizer 34 is provided inside the cavity. As the polarization direction of the generated optical wave varies with the modulating field the amplitude of the output is varied. By selecting the direction of application of the modulating field the Kerr, Pockels, Voigt, Cotton-Mouton or Faraday effect may be utilized.
Patent GB-1171642-A (GB)
Title: Improvements in or relating to material handling machines
IPC: E02F3/18
Filed: 1966-10-20
Abstract: 1,171,642. Reclaiming materials from piles. BARBER-GREENE CO. 20 Oct., 1966 [24 Oct., 1965], No. 47097/66. Heading B8E. [Also in Division E1] A reclaimer has two digging means for the simultaneous removal of material from two zones of a stockpile to a common discharge point. One means consists of a boom 18a pivoted on one side of the chassis of the reclaimer for vertical adjustment in a plane transverse to the direction of movement of the chassis along the pile and a driven, cutter bladecarrying shaft 26 mounted on the boom. The other digging means is a bucket wheel 16 supported on the chassis to extend out beyond the chassis side on which the boom is mounted and be rotatable about an axis substantially at right angles to said direction of movement of the chassis to dig away the lower part of the pile. Material from the two digging means is received by a conveyer extending from within the wheel from below the lower end of the boom to beyond the far side of the chassis. The method of use of the reclaimer forms the subject matter of Specification 1,171,643.
Patent GB-1198616-A (GB)
Title: A Method of Forming Sintered Composite Bodies.
Inventor: WHITFORD JOSEPH THOMAS
IPC: B22F7/08
Filed: 1966-10-21
Abstract: 1,198,616. Resistance hot pressing. JOHNSON, MATTHEY & CO. Ltd. Oct. 20, 1967 [Oct. 21, 1966], No.47156/66. Heading C7D. A sintered composite metal such as an electrical contact is formed by resistance hot pressing a metal powder or compact of e.g. Ag, Pt, Ag-Cd0 or Ag-Ag Cd0 with a metal-rod of e. g. Cu which supplies the current and pressure and which is sinter bonded to the powder during hot pressing. The powder is supported in a mould of Mo, W or an alloy of Ti-Zr-Mo.
Patent GB-1224817-A (GB)
Title: Electrical signalling systems
IPC: H04Q1/448
Filed: 1968-10-04
Abstract: 1,224,817. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 4 Oct., 1968 [7 Oct., 1967], No. 47237/68. Addition to 1,147,256. Heading H4K. The method disclosed in the parent Specification of analysing V.F. signals by sampling channels on a TDM basis, storing the results of such sampling and then reading out the samples at a much higher rate whereby the original signals are frequency multiplied and can be examined by BPF's having less stringent requirements on their bandwidths is modified by sampling the channels at two speeds, one of which is, e.g. four times higher than the normal scanning frequency while the other is equal to the scanning frequency (i.e. twice the highest signal frequency). Although this modification involves more storage capacity since each channel is scanned 47 times (see below) instead of 25 times before an analysis is made and the scanner is obviously more complex, it is considered that a more accurate result entails as there is less likelihood of accidentally synchronizing the scanning frequency with the zero transitions of an incoming signal. The higher scanning frequency and the period for which it lasts-in terms of the transient times of the analysing filters-are chosen somewhat arbitrarily. As described, for incoming signals of maximum frequency 2À5 kc/s., an analysing scanning frequency of the order of 1000 times this and a transient time of the analysing filters of 5À0 m.sec. at 2À5 kc/s., it is suggested that the higher sampling frequency should be 20 kc/s. and the normal sampling frequency should be 5 kc/s., sampling at 20 kc/s. lasting for 1À5 m.sec. whereby 30 samples of a channel are taken and sampling at 5 kc/s. lasting for 3À5 m.secs., whereby 17 samples are taken. These samples are read out from store at two rates (each about 1000 times greater than the two write-in rates of 20 and 5 kc/s. respectively) and then fed via a digital/ analogue converter and a low-pass filter to the analysing filters as disclosed in the parent Specification.
Patent GB-1351658-A (GB)
Title: Mounting adaptor for multiport valves
IPC: B01D24/10
Filed: 1971-10-13
Abstract: 1351658 Filter and valve assembly M LERNER 13 Oct 1971 [13 Oct 1970] 47688/71 Heading B1D A filter housing enclosing a filter bed 13 is connected to a valve 14, 15 having two positions, in which the bed filters downwards or is backwashed upwards by unfiltered liquid, by an adaptor 2 (Fig. 1, not shown) which comprises a flange 3 whereby the adaptor is secured to an opening in the housing, ports 4, 5 communicating with ports 19, 20 in the valve and a perforate diffuser in communication with port 4 and whose holes 7 spread incoming liquid over the bed or receive used backwash liquid therefrom. In its backwash position valve 14, 15 directs the used backwash liquid to waste. Standpipe 21 connects the underside of bed 13 to channel (8) leading to port 5. Adaptor 2 is shown connected to housing 10 by a clamping band of V-section, but bolts or a threaded connection may be used. The valve may be similarly demountably connected to the adaptor or permanently bonded thereto. The adaptor may be of metal or a one-piece moulding of plastics, several of which are exemplified. A transparent plastics adaptor allows observation of bed 13. An aperture (25) up to 1/8 inch diameter may connect the inlet and outlet sides of the adaptor to prevent air accumulating in housing 10, the resulting bypassing of unfiltered liquid being small enough to be acceptable in a swimming pool circuit.
Patent GB-1176256-A (GB)
Title: Process for Dispersion Strengthening of Iron Powder
Inventor: HAY DAVID STEWARD
IPC: C21B13/14
Filed: 1967-10-19
Abstract: 1,176,256. Making iron powder. FINA METAL Ltd. Oct.16, 1968 [Oct.19, 1967], No. 47742/67. Heading C7D. [Also in Division C1] Iron powder with a small amount of alumina dispersed uniformly therein is produced by treating finely divided natural haematite ore in a high intensity wet magnetic separator to remove a substantial portion of the impurities other than A1 2  0 3  (e.g. SiO 2  and other acid insoluble impurities) and then with a reducing agent (e. g. carbon and/or hydrogen) below the melting point of iron (e. g. between 1600 F. and the melting point of iron). The purified haematite preferably contains less than 0À2% of acid insoluble impurities. The product may be sintered to form a dispersion strengthened moulded product.
Patent GB-1362849-A (GB)
Title: Static power conversion ciruit
IPC: H02P27/06
Filed: 1971-10-15
Abstract: 1362849 Inverting; control of AC motors GENERAL ELECTRIC CO 15 Oct 1971 [19 Oct 1970] 48060/71 Headings H2F and H2J A variable frequency 3-phase inverter, e.g. for controlling the speed of an A.C. motor 64 comprises three pairs of series-connected switching devices such as thyristors 18, 20; 30, 32; 40, 42 for sequentially connecting each phase to a D.C. source 22, 24, the average voltage being adjusted by time-ratio control of one device at a time only during the 60 degrees at the mid-time of each half cycle. As described, the frequency is determined by a voltage-controlled oscillator 154, controlled by the output of an amplifier 164 in response to a command signal at 150 from a potentiometer or tachogenerator (not shown). The motor speed is also modified in response to motor current from a transformer 80, feeding an input 90 and by a regeneration limit signal at 170. The oscillator frequency is reduced by a binary divider 156 and outputs at selected submultiples driving a ring counter 158 which distributes pulses to the three phases to supply the main thyristors 18, 20; 30, 32; 40, 42 and commutating thyristors 18A, 20A; 30A, 32A; 40A, 42A. Time-ratio control.-The output voltage is monitored at 80 and compared at 216 with a voltage proportional to oscillator frequency derived at 208. A square wave at a selected sub-multiple frequency is selected at 201 and converted at 202 into a triangular waveform, pulses being derived at 204 at the coincidence of the triangular waveform with the voltage control signal from amplifier 216. These pulses are used to determine the on/off periods in the 60 degrees control interval at the mid-time of each half cycle. Commutation.-Turn off of the main thyristors 18, 20; 30, 32; 40, 42 is achieved by commutating circuits such as 58, 62 connected by commutating thyristors 18A, 20A. The commutating current is monitored by transformers 94 and fed to a delay switch which signals completion of commutation to the logic system 162.
Patent GB-1113046-A (GB)
Title: Improvements in fluid treating method and apparatus
IPC: B01F13/08
Filed: 1965-11-15
Abstract: 1,113,046. Stirring by magnetic field. A HERSHLER. 15 Nov., 1965, No. 48340/65. Heading BIC. A liquid may be stirred by dispersing therein a plurality of irregular magnet elements of material having a coercive force greater than 50 Oersteds, and subjecting them to an alternating magnetic field. As shown magnet elements 14 in non magnetic vessels such as a bottle 16, beaker 17 and test tube 18 are subjected to the magnetic field of an annular solenoid supplied with alternating current; the magnetic field in a region 19 is concentrated by a soft iron bar 20. Alternatively the magnetic field may be concentrated in zones by using an encircling collar of magnetic material or more than one solenoid (Fig. 4 not shown) or a solenoid with shaped poles (Figs. 3 and 5, not shown). If the liquid is flowing in a non- magnetic conduit (40, Fig. 6 not shown) an annular solenoid (41) may encircle it and the magnet elements be retained by screens (43). The strength of the magnetic field may be varied by connecting the solenoid through an auto-transformer (11, Fig. 1, not shown). The magnet elements are conveniently permanent magnets formed by crushing and grinding a barium ferrite magnet; they may be encased in inert material and their dimensions are between 0.1 microns and 1 cm. The frequency of the field is 1 to 100,000 cps and the solenoid has at least one ampere-turn per metre.
Patent GB-1098909-A (GB)
Title: Method of removing copper-bearing coatings from iron and steel surfaces
IPC: C23F1/44
Filed: 1966-10-28
Abstract: Iron or steel surfaces contaminated with Cu-containing deposits (Fe2O3 + CuO) e.g. in boiler installations are cleaned with an aqueous solution containing by weight 1-20% of one or more complexing agents for Cu ions in alkaline solution such as NH4OH, NaHCO3, an alkanolamine e.g. NH2(CH2)2OH, a polyamino compound e.g. triethylene-diamine or a salt thereof with hydroxy or hydroxypolyamino carboxylic acid e.g. triammonium citrate or E.D.T.A. -ethanol amino ester, and 0.1-10% of Br or I compound such as Na, K or ammonium bromide, iodide, hypobromite, hypoiodite, bromate, iodate, perbromate, periodate, with or without 0.1-10% of Cl-containing oxidizing agent such as Na or K hypochlorite or (per) chlorate; the pH is maintained at 9-11 e.g. by adding NH3.  Prior art is disclosed wherein the solution contains the complexing agent with an oxidizing agent e.g. a nitrite, H2O2 or other peroxide, (per) chlorate, persulphate, perborate or air.
Patent GB-1158287-A (GB)
Title: Method of Fluorination of Nuclear Fuel.
IPC: C01G43/06
Filed: 1966-10-28
Abstract: 1,158,287. Uranium hexafluoride. CENTRE D'ETUDE DE L'ENERGIE NUCLEAIRE. 28 Oct., 1966 [26 Nov., 1965], No. 48439/66. Heading C1A. [Also in Division G6] Uranium hexafluoride is obtained by treatment of spent nuclear fuel with a gaseous mixture of fluorine and a compound containing fluorine and another halogen at a temperature between the boiling point of said compound and 500 C. The fuel may be in the form of an alloy, oxide, or carbide. In examples, uranium dioxide pellets and compact uranium carbide are treated at 200 C. or 300 C. with a mixture of chlorine trifluoride, fluorine, and nitrogen. The fuel may be mixed with alumina to dissipate heat. A suitable apparatus is described with reference to a drawing. Powdered fuel may be treated as a fluidized bed.
Patent GB-1131413-A (GB)
Title: Improvements in or relating to laminated structures
Inventor: SCHIRTZINGER JOSEPH FRANKLYN
IPC: B29C70/00
Filed: 1965-11-15
Abstract: 1,131,413. Shear-resistant laminate. AIR LOGISTICS CORP. 15 Nov., 1965, No. 48504/65. Heading B5N. A laminated structure 10, Fig. 1, comprises a deformable sheet member of homogeneous or composite form 11, a first plurality of spaced parallel elongate tensile elements 12 bonded to one side of the sheet, and a second plurality of spaced, parallel elongate tensile elements 13 bonded to the opposite side of the sheet and disposed at an angle to said first plurality of tensile elements each tensile element being wider than it is thick. As described the elements 12, 13 are bundles of unidirectional filaments of fibre glass bonded by a thermosetting, e.g. an epoxy or phenolic, resin, and the sheet 11 is either a homogeneous sheet of natural or synthetic rubber or is a composite sheet of a fabric of e.g. woven nylon, covered on each side with a layer of non-hardening material, e.g. asphalt. The material of the sheet 11 may be formed into ribs between adjacent tensile elements. The edge of the structure may be reinforced by an edge strip 37, Fig. 8, between the tensile elements and elements 36, which may be of the same material as the tensile elements.
Patent GB-1336032-A (GB)
Title: Polyhydroxyalkylamine salts of anionic dyestuffs
IPC: C09B41/00
Filed: 1971-10-19
Abstract: 1336032 Dyeing and optical brightening preparations containing amine salts of anionic dyestuffs BAYER AG 19 Oct 1971 [20 Oct 1970] 48522/71 Headings D1B and D1P [Also in Division C4]  Dyeing preparations contain salts of anionic dyestuffs with polyhydroxyalkylamines of the formula R 1 -N(R 3 )-R 2  wherein R 1  and R 2  are each H, C 1-6  alkyl or C 1-6  mono- or di-hydroxyalkyl and R 3  is polyhydroxyalkyl optionally substituted by alkoxy or formyl, with the proviso that if the dyestuff is an azo dye it is free from carboxyl groups. The preparations can be stable, concentrated solutions of the salts in water, an aqueous-organic medium or an organic solvent or solvent mixture. The aqueous and aqueous-organic solutions can contain solubilizing agents such as urea and dextrins or surface active agents. Dry dyeing preparations which may contain diluents and/or dispersing agents are also referred to. The preparations are used for dyeing and printing materials containing OH groups and nitrogen, preferably of a textile nature, especially materials of native or regenerated cellulose such as cotton, rayon and paper, as well as wool, silk, leather, synthetic polyamides and polyurethanes. Included in the expression "anionic dyestuffs" are anionic optical brighteners, of, for example, the stilbene, 1, 3-diarylpyrazoline, triazole, coumarin and oxazole series.
Patent GB-1281904-A (GB)
Title: A gripping union for connection to flexible tubes of various diameters and wall thickness
Inventor: PROSDOCINO GIORDANO
IPC: F16L33/22
Filed: 1969-10-03
Abstract: 1281904 Pipe couplings G PROSDOCIMO and G BRUSADIN [trading as UNIFLEX SNC] 3 Oct 1969 [23 Oct 1968] 48613/69 Heading F2G  A flexible hose is fitted over a conical serrated spigot 1 and is held in position by a serrated elastic ring 3 tightened on to the hose by a ring nut 2 screwed on to the spigot body 1. The elastic ring 3 has a series of axial slots extending over most of its length, Fig. 4, (not shown), and may have an axial slot (11) extending over all its length, for increased flexibility. The elastic ring 3 and ring nut 2 are fitted over the hose, the hose is pushed up the spigot taper, the elastic ring is held against rotation relative to the spigot 1 by tongues (6) engaging in notches (8) in the spigot, Fig. 3 (not shown), and the ring nut is screwed on to the spigot. A taper 9 in the bore of the ring nut 2 contacts the end of the elastic ring 3 and forces the ring end inwardly to grip the tube. As shown, tubes of varying diameter and thickness can be accommodated by the extent of axial movement of the ring nut 2 relative to the elastic ring 3. The end fitting assembly may be used with a different end fitting at its other end, or may form part of a junction-piece (T or Y) which comprises a number of such fittings.