baber/WOPTO huggingface dataset:
Patent GB-1220712-A (GB)
Title: Improvements in or relating to hydraulic torque converters
IPC: F16H41/26
Filed: 1968-08-30
Abstract: 1,220,712. Torque converters. FICHTEL & SACHS A.G. 30 Aug., 1968 [2 Sept., 1967], No. 41550/68. Heading F2C. The hydraulic torque converter shown substantially to scale in Fig. 1 meets the following requirements: a median line 52 passing through sections Sa, Sb, Sc of an annular cavity and flow path S formed by toroidal walls 40, 42 enters the section Sa at a point P and leaves the section at a point Q, and the ratio of the distances R 11 , R 12  which are the respective distances of the points P, Q from the axis of rotation of the converter is between 0.55 and 0.65; the ratio of the outer diameter of the cavity S to the inner diameter thereof, the diameters being measured from the axis of rotation at right-angles thereto (and differing by an amount b 12 ) is greater than 1À8; the area of the circle between the walls 40, 42 in a plane perpendicular to the axis of rotation and including the point Q is 0À1 to 0.3 3 times the area of a circle having the same diameter as that of the cavity S; the ratio of the length L of the cavity S to the outer diameter D is 0.22 to 0.28; the ratio of the height H of the cavity S to the diameter D is 0.30 to 0.36; the product Rx, Bx is constant for all circles which are in an axis containing plane inscribable between the walls 40, 42 so as to touch both walls, where Rx (R 12  on the drawing) is the distance of the centre of each circle from the converter's axis and b x  (b 12  on the drawing) is the diameter of that circle. The Figure also shows an impeller 10 with vanes 16a, a turbine 22 having vanes 16b and a reactor 30 with vanes 16c. The reactor is mounted on an outer sleeve 32 of an overrunning detent 34 whose inner sleeve 36 is connected to a stationary member by splines 38. Fig. 2 (not shown) represents the form of the wall (42) of which the dimensions and geometric construction are specified. In Fig. 3 (not shown), graphs of rotary impeller speeds against rotary turbine speeds of the present construction and of two other constructions are compared with a straight line graph (W) representing an ideal coupling performance under normal operating conditions corresponding to zero slip. The present converter is stated to combine the favourable properties of the other two while avoiding the unfavourable features of either.
Patent GB-1212946-A (GB)
Title: Polarimeter
Inventor: WILMANNS INGO GOETZ
IPC: G01N21/21
Filed: 1968-08-30
Abstract: 1,212,946. Photo-electric ellipsometers. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Aug.30, 1968 [Aug. 31, 1967; March 22, 1968], No. 41565/68. Heading G1A. [Also in Division H3] In the measurement of the ellipticity imposed on a beam of plane polarized light on reflection or transmission by a sample, the phase and polarization plane of the beam are modulated at different frequencies. Infrared, visible or ultraviolet radiation from a source 1 passes through a collimator 2, interference filter 3 and polarizer 4 to a sample 8. The plane of polarization of the beam is modulated at 930 Hz by a fused silica Faraday cell 6 and the phase of the beam is modulated at 20 kHz by a fused silica cube energized by Piezo-ceramic discs held against the cube by steel rods 7. The beam reflected from the sample 8 passes through a phase equalizer 9 and an analyser 10 to a photomultiplier or photo-diode 11. The detected signal is fed to synchronous rectifiers operating at 930 Hz and 20 kHz to derive signals indicative of the azimuth and ellipticity of the beam leaving the sample. These signals may be used to adjust the phase equalizer 9 and analyzer 10 manually or automatically in a null balance arrangement. The D. C. component of the detector signal may be measured to determine the intensity of the reflected beam. The sample 8 may be located on a goniometer table with elements 1-7 on the fixed arm and elements 9-11 on the movable arm. The method of ellipsometry of the invention may be used for the standardization of monochromators, Fig. 4, (not shown).
Patent GB-891874-A (GB)
Title: Pumping plant for untreated water
IPC: F04D29/70
Filed: 1960-12-02
Abstract: 891,874. Filters. SULZER FRERES S. A. Dec. 2, 1960 [Jan. 23, 1960], No. 41589/60. Class 46. Untreated water withdrawn by a pump 5 from an intake station 1 through a. cleaning (filtering) element 4 in an intake pipe 3 is delivered at 6 into a basin 7 below the level of an overflow weir 8 so that when the pump is stopped, water from the basin 7 flows back along the same route to the intake station 1, backflushing the element 4 and pipe 3 as it does so. Further back-flushing may be provided by water from a tank 9 through pipe 20 and valve 19.
Patent GB-1281075-A (GB)
Title: Optical reading systems
IPC: G06V10/88
Filed: 1969-08-21
Abstract: 1281075 Character recognition COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT 21 Aug 1969 [21 Aug 1968] 41862/69 Heading G4R In a character recognition system, the symbols on a document to be read are selected in turn by a multifacet rotary mirror and presented for simultaneous optical comparison with different reference characters, the highest correlation being detected by a unit having automatic threshold regulation. The comparison uses a correlator for each reference. Each correlator is followed by a respective lens and photodiode, the photodiodes feeding the unit referred to, which is transistorized, to identify the character to a computer which is also supplied with the character location. The multifacet mirror reflects each character in a line on the (stationary) document, in turn through a lens to an image multiplier, then the document is moved incrementally to bring the next line into position. Alternatively, the document is stationary throughout and an incrementally rotating mirror selects the lines in turn for supply to the multifacet mirror. Alternatively, the document moves continuously and the rotation axis of the multifacet mirror is skewed to compensate. Defocussing at the line ends is compensated by cyclic translation of the last-mentioned lens, or by using a corrector lens with a cylindrical curve adjacent the document, or by the document to a concave cylindrical surface by suction. The image multiplier uses plane mirrors arranged on a paraboloidal surface or lenses arranged on a spherical surface.
Patent GB-951685-A (GB)
Title: Improvements in the control of the slewing of cranes and the like hoisting apparatus
IPC: B66C13/30
Filed: 1961-11-24
Abstract: 951,685. Slewing jib cranes. ETABLISSEMENTS WEITZ S.A. SOC.: LES FILS DE JULES WEITZ, CHANTIERS & ATELIERS DE CONSTRUCTION DE LYON, WEITZ REUNIES. Nov. 24, 1961 [Nov. 29, 1960], No. 42151/61. Heading B8B. The jib of a crane is locked in the position to which it has been slewed by an electric motor 2, Fig. 1, by an electromagnetic brake 3 which is released as soon as the electric circuit feeding the crane is broken. As described the motor 2 is controlled by a reversing switch 6 which includes contacts 7, 8 in the electromagnetic brake circuit. When the jib is stationary contacts 10, 11 are open and contacts 7, 8 are closed thus applying the brake. To slew the jib one of contacts 10, 11 is closed according to the direction of rotation and the corresponding contact 7 or 8 is opened to release the brake. Breaking the power supply by opening a switch 5 releases the brake so that the crane jib can swing in the wind when unattended thus preventing it being blown over. In a second embodiment, Fig. 2, an electromagnet 19 is de-energized when the current is switched off, thus allowing a weight 24, mounted on a pivoted lever 22, to fall and in doing so lift a weight 16 thus releasing a bandbrake 12. When power is applied the brake is on except when the electromagnet 18 is energized during slewing movements.
Patent GB-1014184-A (GB)
Title: Disposal of household refuse
Inventor: VENISON DOUGLAS MICHAEL
IPC: E03F7/10
Filed: 1962-11-09
Abstract: The refuse in a drainage collecting pit C is transferred to a disposal tank 20, the solid matter being at the same time filtered within the tank 20 from the liquid, which then flows continuously into a static receiving tank 5, communicating with a sewage system and connectible to a vacuum pump 7, so that the refuse is transferred from the pit C to the tank 20.  The tank 20 is preferably mobile. Another tank 5 discharges through a break tank 11 and liquid trap 12 into the main sewer M. Apparatus for the method comprises conduits 1, 4, connected to the pit C and the tank 5, respectively, and with two ends terminating in a common manhole 3 for connection to a filtration-and-disposal unit in the tank 20 having inlet and outlet pipes 21, 23.  The pipeline 6 has a cut-off valve for the vacuum pump 7 and the tank 5 is put into communication <PICT:1014184/C1/1> with the air to end the vacuum therein to discharge it to the sewer M.  In an alternative method the water pump 14 acts with the pump 7 and the valve in 6 is dispensed with.
Patent GB-1518289-A (GB)
Title: Manufacture of polyamide film-forming materials
IPC: C08L77/00
Filed: 1975-10-17
Abstract: 1518289 Polymerizing caprolactam BASF AG 17 Oct 1975 [25 Oct 1974] 42651/75 Heading C3R In the continuous polymerization of caprolactam and/or aminocaproic acid (and optionally up to 20 wt. per cent comonomers) the first stage is effected at 240 to 290 ‹C. to at least 20 (preferably 35)% conversion, 0À0005 to 0À5 wt. per cent magnesium silicate of below 30 Á is then added, and polymerization completed in (a) further stage(s) to a R.V. of 2À4 to 3À3 (1% in H2SO4/25‹ C.). The products can be processed to high grade transparent film at relatively low temperatures and reference is made to Specification 1,518,288.
Patent GB-1088972-A (GB)
Title: Process for separating or dividing textile materials into individual continuous filaments
IPC: D02J1/18
Filed: 1964-10-20
Abstract: 1,088,972. Spinning yams; treating fibres with liquids. TEIJIN Ltd. Oct. 20, 1964 [Nov. 5, 1963; March 5, 1964], No. 42744/64. Headings D1F, D1L, D1P and D1W. In a separating or dividing process, untwisted or twistless yarn or tow of continuous filaments, e.g. of viscose rayon, cellulose acetate, nylon, polyvinyl chloride or polyethylene terenhthalate are rendered electrically conductive by steaming, or spraying or padding with, or immersion in, water or aqueous solutions of surface active agents, e.g. anionics such as high alcohol sulphuric ester salts, aliphatic amine salts and alkyl phospheric esters, cationics such as the quartenary ammonium and pyridium salts, amphoteries such as high aliphatic amino alcohol sulphuric ester and phospheric ester and nonionics-such as polyoxyethylene alkyl ether and potybxyethylene polyoxypropylene alkyl ether, and aqueous solutions of inorganic electrolytes. A potential of 5000-100000 volts is applied across the yarn &c. so that there is a flow of current along a predetermined length thereof and the yarn &c. separates into individual filaments. As shown, continuous multifilaments supplied from bobbin 1, or from apparatus untwisting a twisted multifilament yarn, Fig. 2 (not shown) pass through a compensator 6 for maintaining the filament tension constant, into apparatus 2 imparting electrical conductivity to the filaments, around and between feed rolls 7 to an electrode 4 Charged from a high voltage source 3, then around earthed spread rollers 5, 5'. A blended continuous filament yarn may be produced from at least two different multifilament yarns by subjecting each such yarn to the spreading process, Fig. 6 (not shown) and taking up the merged filaments. Yarn comprising a core covered with filaments may be formed by spreading the filaments of a yarn, feeding another yarn into the spread filaments and winding the whole assembly into a single Cored yarn. In apparatus 2, Fig. 3, air at adjustable pressure is jetted from nozzle 23 through duct 22 to blow conducting agents 24, supplied through line 25 and maintained at a constant level, onto filaments 21 in their atomised form.
Patent GB-1151029-A (GB)
Title: Improvements in or relating to Inhibited Starch Products
IPC: C08B31/00
Filed: 1967-09-20
Abstract: 1,151,029. Cross-linked starch. NATIONAL STARCH & CHEMICAL CORP. 20 Sept., 1967 [21 Sept., 1966], No. 42893/67. Heading C3U. Granules of a starch base are inhibited against gelatinization by crosslinking in an aqueous medium with (1) a glycine reagent containing as part of the molecule at least one functional group selected from where R is a labile group whose linkage to the oxygen atom is readily broken in the reaction and X is NH 2  or wherein, in the latter formula, nitrogen atom N<SP>1</SP> is linked to carbon atom C<SP>1</SP>, and N<SP>11</SP> is linked to C<SP>11</SP> and (2) a hypochlorite or compound which converts thereto under the reaction conditions; the amount of reagent (1) being 0À01-7À0% and the amount of active chlorine in the reagent (2) being 0À1-6À5% based on the dry weight of the starch base, and the total solids of the reaction mixture being 10-90% by weight. Exemplified reagents (1) are glycine and hydrolysed gelatine, and (2) NaOCl; many others are listed. By "starch base" is meant any starch which has free OH groups, and includes dextrin, oxidized starch, acid- or enzyme-converted starch, partially esterified or etherified starch and high amylose starch. Reaction may be effected at 32-140 F. at a pH of 5-11, suitably in the presence of less than 3À5% of NaOH. The cross-linkages in the product are labile, and are readily removed by heat, excess alkalinity or by cooking with, e.g. sodium iodide, bromide, chloride or acetate.
Patent GB-1021221-A (GB)
Title: Improvements in or relating to tape recorders
Inventor: LEWIS ALAN
IPC: G11B15/43
Filed: 1961-11-30
Abstract: 1,021,221. Guiding record tapes. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 21, 1962 [Nov. 30, 1961], No. 42975/61. Heading G5R. A magnetic tape 7 is constrained to follow a desired path by lapping around a pair of cylindrical guide posts 24, 25 with sapphire edgeguides 28, 30, spaced apart slightly less than the tape width, the guide 30 forcing the tape against the guide 28. The tape is reversible and a similar pair of guides are located on the other side of the head 10 (Fig. 1, not shown). A servo-drive system for feeding the tape is briefly described and described in detail and claimed in Divisional Specification No. 1,021,222.
Patent GB-1204973-A (GB)
Title: Percussively-ignitable photoflash lamps
Inventor: KOPELMAN BERNARD
IPC: F21K5/14
Filed: 1968-09-10
Abstract: 1,204,973. Flash-bulbs. SYLVANIA ELECTRIC PRODUCTS Inc. Sept.10, 1968 [Sept.12, 1967; Oct.30, 1967], No.43035/68. Headings G2A and G2L. A flash-bulb of the percussively ignitable type has a primer consisting of a protruding metal tube 3 which opens into the interior of the envelope 2 and contains a quantity of percussive material 8 and an anvil wire 9. The wire is coated with the percussive material before being inserted into the tube. The tube may be offset from the central longitudinal axis of the envelope so that, when a plurality of such bulbs are seated on a base to form a flash-cube, the tubes can be positioned nearer to the centre of the base than would otherwise be the case. The tubes are seated in lateral abutment with portions of the base so that they can sustain a lateral blow to ignite the percussive material.
Patent GB-1276343-A (GB)
Title: Improvements in and relating to semiconductor devices
IPC: H01L21/208
Filed: 1969-08-29
Abstract: 1276343 Directional crystallization PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 Aug 1969 [4 Sept 1968] 43162/69 Heading BIS [Also in Division Hl] A semiconductor body comprises a junction between regions of two different semiconductor compounds, both consisting of the same two elements but differing in their stoichiometric ratios. The individual compounds differ from their stoichiometric ratios in that one compound has an excess of the element which the other compound contains relatively more of and the other compound has an excess of the element which the one compound contains relatively more of. The compounds may be selenides of tin, sulphides of copper or tellurides of cadmium. The semiconductor body is produced by crystal growth from a melt 54 in a sealed ampoule 53 lowered through an oven 51, the speed of lowering, melt composition and temperature being so controlled that the two compounds are crystallized simultaneously to form laminated crystals 55, 56. When it is required to connect together alternate crystals of the same compound, surface connecting layers are formed. In the case of crystals of the one compound a surface layer of the one compound is formed by contacting a body surface at a high temperature, but below eutectic temperature, with a vapour of a mixture of condensed phases which are in equilibrium at that temperature consisting of the two elements making only the one compound, then afterwards contacting the body surface at a similar temperature with vapour of a mixture of crystals of the two compounds until the contact layer has obtained the composition of the crystals of the one compound. A surface contact layer connecting the crystals of the other compound can similarly be formed on the other body surface.
Patent GB-1439703-A (GB)
Title: Modular walkway bridges
IPC: E01D1/00
Filed: 1973-09-14
Abstract: 1439703 Suspended staging; bridges S L FISHER 14 Sept 1973 [18 Sept 1972] 43248/73 Headings E1G and E1S A staging or walkway bridge 10 which may, as shown, be connected between two suspended cradles 14, comprises a plurality of sections 12 each including a rectangular decking 18 on a rigid lower support framework 20, the sections being hingedly connected end-to-end at the decking level at at 22, and flexible cables being connected tautly longitudinally of the staging or bridge 10 beneath the frames 20, whereby the staging or bridge is prevented from sagging at its centre but may bow upwardly in the event of striking an obstacle on being lowered. As shown, the support frame 20 of each section is generally triangular and has at each side at its lower apex a clamp 76 holding the centre of a cable section 24 extending the length of the staging section, the cable sections being coupled end-to-end at 80. The frame 20 also has at each side a socket 50 to receive a post 52 supporting a hand-rail 54. Special brackets 90 and handrail units 60 are attached at the ends of the staging 10 for mounting on the cradles 14.
Patent GB-994167-A (GB)
Title: Stabilisation of liquid halogenated hydrocarbons
Inventor: JAMES JOHN EDWARD
IPC: C07C17/42
Filed: 1962-11-16
Abstract: Liquid chlorinated and/or brominated aliphatic hydrocarbons having 1 to 3 carbon atoms are stabilized for storage in metal containers by an organo tin compound having the formula RnSnZ4-n in which n is 1, 2, or 3, R is a hydrocarbon group and Z is an organic group containing at least 6 carbon atoms, this group being linked to the tin atom through an oxygen or sulphur atom, in an amount of from 0.1 g. per 100 c.c. of halogenated hydrocarbon, to saturation.  The stabilizer may be dibutyltin dilaurate, dibutyltin dinonylmaleate, dibutyltin di-iso-octylthioglycollate, dibutyltin dinonylthioglycollate, dibutyltin mercaptopropionate, dibutyltin dilaurylmercaptide, dibutyltin dicaprate.ALSO:A composition suitable for use in dry cleaning comprises a liquid chlorinated and/or brominated aliphatic hydrocarbon having 1 to 3 carbon atoms and as a corrosion inhibitor an organotin compound of formula RnSnZ4- n in which n is 1, 2 or 3, R is a hydrocarbon group and Z is an organic group containing at least 6 carbon atoms linked to the tin atom by an oxygen or sulphur atom present in an amount of from 0.1 g. per 100 c.c. halogenated hydrocarbon to saturation.  Specified organotin compounds are dibutyltin dilamate, dibutyltin dinonylmaleate, dibutyltin di-iso-octylthioglycollate, dibutyltin dinonylthioglycollate, dibutyltin mercaptopropionate, dibutyltin dilaurylmercaptide, dibutyltin dicaprate.  Specified liquids are chlorobromomethane, carbon tetrachloride, trichloroethylene, tetrabromoethane and methylene dibromide.ALSO:A fire extinguisher comprises a metal container having present therein a liquid chlorinated and/or brominated aliphatic hydrocarbon having 1 to 3 carbon atoms and an organotin compound of formula RnSnZ4-n in which n is 1, 2, or 3, R is a hydrocarbon group and Z is an organic group containing at least 6 carbon atoms, this group being linked to the tin atom through an oxygen or sulphur atom present in an amount of from 0\sm1 g. per 100 c.c. halogenated hydrocarbon to saturation. The organotin compound may be dibutyltin dilaurate, dibutyltin dinonylmaleate, dibutyltin di - isooctylthioglycollate, dibutyltin dinonylthioglycollate, dibutyltin mercaptopropionate, dibutyltin dilaurylmercaptide, dibutyltin dicaprate.
Patent GB-1381133-A (GB)
Title: Equipment for sampling bulk material
IPC: G01N1/20
Filed: 1972-09-20
Abstract: 1381133 Sampling apparatus BIRTLEY ENGLtd 10 Sept 1973 [20 Sept 1972] 43468/72 Addition to 1217510 Heading B8N The apparatus for sampling material as it falls in a stream 9 as disclosed in the parent Specification 1,217,510 has improved means of moving the arms 4 and sample container 6 comprising at least one linear actuator 10, 11, a flexible transmission member 14 and a driving wheel 5 mounted on the shaft 2 of the arms. The flexible transmission member 14 may be a steel rope clamped at one point to the driving wheel 5; alternatively a chain and sprocket wheel could be employed. The discharge door 25 may be held closed by a spring as the container 6 is moved two or more times through the stream 9 before being opened by cam surfaces 22 on a collection shoot 26 when this is swung over by an actuator 18 as disclosed in Specification 1,381,134; alternatively the discharge door may be closed by a latch arranged to be released by a cam on the framework 1. The actuators may be hydraulically operated through an automatic or manual control.
Patent GB-1503370-A (GB)
Title: Radar transmitters
IPC: G01S13/22
Filed: 1976-08-17
Abstract: 1503370 Pulsed radar ENGLISH ELECTRIC VALVE CO Ltd 17 Aug 1976 [24 Oct 1975] 43703/75 Heading H4D A coherent pulsed radar comprising a magnetron 1 changeable from a first frequency to a second frequency by means of a multipactor tuning arrangement 2 as described in Specification 1,334,001, has the magnetron of the first frequency (arrangement 2 operative) at the beginning of each pulse and a phase comparator detecting phase equality between the first frequency, as tapped off at 7, and the output of a COHO 10, to cause, via 3, the disablement of arrangement 2 and change in the pulse to the second frequency. The latter, second frequency parts of the pulses are coherent with COHO 10. Slow frequency drift, pulse to pulse, is controlled by an A.F.C. system 8, 9, 11. The receiver gates out the first, first frequency non- coherent, part of each echo pulse.