baber/WOPTO huggingface dataset:
Patent GB-839882-A (GB)
Title: Manufacture of catalysts and carriers therefor
IPC: B01J37/00
Filed: 1956-12-17
Abstract: A catalyst or a carrier is made by mixing silica or metal oxide with a thermoplast a binder, shaping the mixture and heating to decompose the thermoplast.  Metal oxides specified are Al, Zn, Ni, Ti, W, Cu, Cr, Fe, or carbonates of these yielding oxides on heating. Thermoplasts specified are polymers of vinyl compounds, e.g. polyvinyl chloride, alcohol or acetate, styrene, acrylic acid ester, or acrylonitrile, and these may be incorporated in the form of an aqueous dispersion.  The shaped product may be heated to a temperature sufficient to carbonize the thermoplast, or at a higher temperature to form carbon, or the carbon may be burnt out and the inorganic support partly sintered.  In examples, kieselguhr, titanium oxide, or a mixture of iron oxide and hydrated titanium dioxide, is mixed with an aqueous dispersion of polyvinyl acetate or chloride; the mixture is pressed and dried. The resulting powder is formed into tablets which are heated at 700 DEG  to 800 DEG  C. in an inert gas, e.g. CO2 or N. Alternatively they are ignited in a current of air or oxygen, followed if desired by heating in air at 1000 DEG  C. or more.  The tablets may be then impregnated with metal or other compounds as catalysts, e.g. phosphoric acid, salts of W, V, or Cr.
Patent GB-323908-A (GB)
Title: Improvements in the recovery of sulphur from solutions of alkali metal polysulphides
IPC: C01B17/06
Filed: 1928-12-31
Abstract: 323,908. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 31, 1928. Sulphur is recovered from solutions of alkalimetal polysulphides, which term includes ammonium polysulphides, by heating the solution to temperatures between 150 and 374‹C. in a closed vessel and withdrawing the separated sulphur. The Specification gives examples in which sulphur is separated from a solution of ammonium polysulphides at 330‹C., and from a solution of potassium polysulphides at 325‹C. The corresponding pressures are about 220 and 160 atmospheres respectively.
Patent GB-853547-A (GB)
Title: Hydraulic rotary machines in particular for high pressures
IPC: F04C2/14
Filed: 1956-12-18
Abstract: 853,547. Gear pumps. MOLLY, H., and ECKERLE, O. Dec. 18, 1956 [June 30, 1956], No. 38512/56. Class 110 (2). In a gear pump having an inlet 2, an outlet 3, equalizing grooves 8, 8<SP>1</SP> and a bushing 7 which is urged against the gears for sealing purposes, the bushing is provided with conduits 19, 191, 20, 201 and a chamber 12 which communicate with the outlet 3 through conduits 17, 13 respectively. The conduits 19, 191 supply pressure fluid to areas 15, 15<SP>1</SP> which are de-limited by seals 16, 16<SP>1</SP> and counteract the radial forces 14, 14<SP>1</SP>. The bushing is also provided with limiting grooves 25, 25<SP>1</SP> connected with the inlet 2 through a channel 26 and slots 23, 23<SP>1</SP>, 24, 24<SP>1</SP> communicating with the grooves 8, 8<SP>1</SP>. In a modification, Figs. 3 and 4 (not shown), the gears are acted upon in the area of the outlet conduit by two opposed pressure-loaded pistons and engage a pressureloaded member having two curved surfaces. Specifications 853,548, 853,549 and 853,550 are referred to.
Patent GB-369998-A (GB)
Title: Improvements in variable speed gearing
IPC: F16H3/08
Filed: 1930-12-22
Abstract: 369,998. Variable-speed toothed gearing ; ratchet clutches. WARNER GEAR CO., Muncie, Indiana, U.S.A.-(Assignees of Fishburn, 0. E. ; Muncie, Indiana, U.S.A.) Dec. 22, 1930, No. 38589. Convention date, Jan. 20. [Class 80 (ii).] In variable-speed gearing for automobiles &c. of the type with aligned driving and driven shafts 2, 3 and a parallel countershaft 4, a ratchet clutch 17 connects a hub 14 splined on the driven shaft to a clutch member 20 which by means of clutch teeth 22 engaging teeth 23 effects a direct drive and by clutch teeth 24 engaging teeth 25 effects a lower speed drive, the wheel 10 then connected being normally free on the shaft 3 and driven by a wheel 7 on the shaft 4. Overrunning of the driven shaft at either speed is thus permitted.. Additional clutch teeth such as 36, 37 and 34, 35 may be provided positively connecting the driving and driven shafts or the wheel 10 and the driven shaft at the limits of adjustment of the clutch member 20, so that overrunning becomes no longer possible. The ratchet clutch is preferably of the type in which rollers 17 of increasing diameters are arranged in eccentric recesses in the inner or outer parts, blocks 19 acted on by springs 18 pressing the rollers to clutching position.
Patent GB-972123-A (GB)
Title: Improvements in or relating to doffing apparatus for textile spinning or the like machines
Inventor: WELKER MANFRED
IPC: D01H9/10
Filed: 1963-10-01
Abstract: 972,123. Bobbins. SPINNEREIMASCHINENBAU KARL-MARX-STADT VEB. Oct. 1, 1963, No. 38624/63. Drawings to Specification. Heading B8M. [Also in Division D1] To facilitate their engagement by forked doffing members, bobbins are provided at the base with a conical member or a ring (Figs. 8, 10, not shown).
Patent GB-1072943-A (GB)
Title: Improvements in or relating to concrete block-making machines
IPC: B28B5/00
Filed: 1962-12-13
Abstract: 1,072,943. Concrete block-moulding machines. J. FINLAY. March 13, 1964 [Dec. 13, 1962], No. 38827/62. Heading B5A. A machine for moulding concrete blocks comprises a wheeled frame and an openbottomed mould box (15), Fig. 1 (not shown), and a tamping assembly 19, 20, 21 mounted for vertical movement relative to the frame by means of handle 29. A motor driven out of balance bar 34 is provided to vibrate the mould box.
Patent GB-966436-A (GB)
Title: Improved xerographic sheet material and the preparation thereof
Inventor: JONES VIRON VERNON
IPC: G03G5/087
Filed: 1962-10-15
Abstract: 966,436. Electrophotographic materials. BELL & HOWELL CO. Oct. 15, 1962, No. 38951/62. Drawings to Specification. Heading H1K. A photoconductive layer for use in electrophotography is produced by dispersing a particulate photo-conductor with a resinous binder in a solvent and coating the mixture on to a smooth highly polished surface upon which it is dried to form a photo-conductor layer which may be readily peeled from the casting surface and which thus has one smooth, very flat face having a higher and more uniform particle density than the remainder of the film and suitable for the production of high resolution images. Suitable photo-conductors include selenium and zinc oxide and other organic and inorganic materials such as oxides, sulphides, selenides, tellurides and tungstates, in particular : zinc sulphide, zinc-magnesium oxide, cadmium sulphide, zinc silicate, cadmium selenide, mercuric iodide, mercury oxide, mercuric sulphide, indium trisulphide, arsenic sulphide, asenic selenide, antimony trisulphide, and lea d oxide. In the particular embodiments zinc oxide is used. The examples given of smooth highly polished casting surfaces are glass, aluminium, stainless steel, chromium and polyethylene terephthalate sheet. Binders used in the-examples are polyvinyl chloride-acetate, silicone resins, polyvinyl butyral resins, and epoxy resins. In five of the examples, rose bengal, methylene blue, fluorescein, acridine orange, and eosin yellow are respectively used as sensitizers. In most cases the photoconductive layer is further dried or " cured " after removal from the casting surface on which the initial drying takes place. The layer may be used as a self-supporting film, or supporting materials such as gummed paper or gummed aluminium foil may be stuck to the rougher (free) face of the film before it is separated from the casting surface. A continuous coating apparatus is described with reference to Fig. 3 (not shown), which produces a porous-paper supported film. Other supporting materials described which are applied as an overcoat before separating the photo-conductive layer from the casting surface are polyvinyl butyral, carboxymethyl cellulose, methocel, polyvinyl chloride, polyvinyl chloride-acetate, polyvinyl acetate, cellulose acetate butyrate, and cellulose acetate. Plasticizers and conducting additives may be added to these overcoating layers and it is stated that photoconductive material may also be present but to a lesser extent than in the true photoconductive layer.
Patent GB-1000992-A (GB)
Title: Improvements in or relating to space-clearing tools for mining machines
IPC: D06N3/04
Filed: 1962-10-17
Abstract: 1,000,992. Mineral-mining equipment. GEBR. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI m.b.H. Oct. 17, 1962 [Oct. 20, 1961], No. 39243/62. Heading E1F. A space-clearing ramp for association with a mineral-mining machine to clear the floor of the space mined out by the cutter means of the machine and a face conveyer comprises an incline structure a, b, which can be moved when required for use from above the face conveyer down into said space to contact the floor to load any mineral from the floor into the conveyer as the ramp is drawn through the space. An upper part b of the ramp is pivotally secured at c to a lower part a of the ramp so that the upper part b may be folded down on to the lower part a to reduce the overall height of the ramp when the ramp is in an inoperative position above the conveyer. The lower part can either be slid along a horizontal support 7 or about a vertical support from above the conveyer out into the space or vice versa and can then be lowered to contact the floor of the space.
Patent GB-1107437-A (GB)
Title: Polyester resin
IPC: C08G63/85
Filed: 1965-09-15
Abstract: Linear polyesters having an improved dye-affinity contain (a) residues of terephthalic and/or isophthalic acid; and (b) residues of glycols at least 3 mol. per cent of which are residues of 2 - methyl - 2 - phenyl - 1,3 - propanediol. Preferred additional glycols are of formula HO-CH2-(CX)n-CH2-OH where X is a hydrogen atom or a C1-C4 alkyl group and n is 0-10.  The polyesters are made by the usual ester-interchange process.
Patent GB-1446193-A (GB)
Title: Transmission systems
IPC: H04B17/40
Filed: 1973-08-21
Abstract: 1446193 Identifying faulty repeaters PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 Aug 1973 [24 Aug 1972] 39379/73 Heading H4R In a system for identifying faulty repeaters, the repeaters are grouped in test sections such as I, II, III and have associated oscillators generating the same set of different frequencies f 1  to f 80  which are not passed by series filters 34, 35 in intermediate repeaters 16, 17 until converted to the passband by a modulator 37, 38 for onward transmission to a monitoring station 2. Each intermediate repeater includes a characteristic oscillator 25, 28 within the filter passband so that failure to receive a characteristic frequency at the station 2 indicates which repeater group is faulty and absence of a frequency within the f 1  to f 80  range indicates which repeater. The modulation carrier oscillator 43 is connected to the modulator 37 by a switch 45 which is closed when a comparator 49 determines that a tone, which may be a gain control pilot generated in the intermediate repeaters or at either end station 1, 2, is below a threshold. The test tones f 1  to f 80  may themselves be frequency transposed in the intermediate repeaters and each repeater draws line power via inductors and a capacitor-shunted Zener diode (Figs. 2 to 4, not shown).
Patent GB-1384099-A (GB)
Title: Pulsed neutron logging system with gain compensation
IPC: G01V5/10
Filed: 1972-08-24
Abstract: 1384099 Gain control in well logging systems TEXACO DEVELOPMENT CORP 24 Aug 1972 [20 Sept 1971] 39465/72 Heading G1A In a well logging system comprising a sub-surface probe containing a neutron source 16 and a scintillation crystal 12 with a photo-multiplier 11 for receiving the gamma rays from the areas surrounding the sub-surface probe 2 and wherein the height of the pulses emitted by the photo-multiplier 11 represents the energy of the gamma ray causing it, variations in the gain of the crystal or the photomultiplier are corrected by adjusting the gain of an amplifier 24 in dependence upon difference between the measured location of a peak in the spectrum from its known location. As shown the pulses from the sub-surface probe are amplified and fed into an integrator which holds a gate open for a duration depending on the magnitude of the pulse height and allows a high frequency oscillator 29 to supply a channel address register 30 so that at the end of the duration the register 30 has a binary number representing the pulse height. The circuit shown is such that each binary number (or range of numbers) is associated with a particular energy channel 31 and at any instant each channel contains a number representing the sum of the number of counts (or pulses) that have occurred with its associated energy value. The contents of three channel registers 2, 3, 4 are supplied to a signal comparator circuit 46, and initially one channel register 3 is chosen to coincide with a peak in the spectrum (i.e. the 2À23 MEV hydrogen peak) and the channel register generates a voltage signal on line 25 whose amplitude is proportional to the difference between the contents of channel register 3 and the contents of either channel register 2 or channel register 4 whichever difference is larger. Then if any gain drift occurs the signal comparator 46 will detect a change in the relative proportions and will generate an error signal of appropriate amplitude and sign. The error signal is fed back via line 25 to the control input of amplifier 24 of the pulse height analyser and will cause a change in the gain of the amplifier to compensate for the drift. In a modification a plurality of peaks are monitored providing a plurality of error signals which are fed via a logic circuit which controls the amplifier.
Patent GB-1416050-A (GB)
Title: Cine-film cassette
IPC: G03B21/32
Filed: 1973-08-21
Abstract: 1416050 Cine-film cassettes BOLEX INTERNATIONAL SA 21 Aug 1973 [11 Sept 1972] 39631/73 Heading B8M A cine-film cassette comprises an openable lid 11 with two spaced drive shaft openings 12, 13, and a case 1, having a rotatable core 3 in axial alignment with one of the drive shaft openings and with an anchorage for holding a film leader, the case also being shaped to receive a flanged film spool 2 in axial alignment with the other drive shaft opening so that a growing winding on the core 3 is guided by film support means, e.g. radial ribs 19, between the flanges of the spool 2. The core anchorage comprises a slot 9 for receiving the film leader and a tooth 10 for engaging a film perforation. The lid 11 is attached to the case 1 by projections 14 which engage in rebates 16 and a spring 17, 18 which snaps over the lid.
Patent GB-1385969-A (GB)
Title: Take-up device for a continuously produced elongate material
IPC: H01B13/00
Filed: 1972-08-25
Abstract: 1385969 Extruding FELTEN & GUILLEAUME KABELWERKE AG 25 Aug 1972 [26 Jan 1972] 39759/72 Heading B3P [Also in Divisions B5 and B8] A take-up device, for extruded and similar products, comprises grippers 13, 14 each with jaws 2, surrounding the product 1, in a drive housing 10 mounted on guides 11. The gripper 13 is shown in its initial take-up position in which the jaws 2 clamp the product 1 under the influence of pneumatic or hydraulic pressure introduced into tyre-like element 3 through a rotary connection 9. A nut 8 mounted on the housing 10 is threaded on a driven lead screw 7 and, in the position shown, is held against rotation by a braked motor 16. At the same time gripper 14 makes its return movement, its jaws 2 being unclamped and its motor 16 driving its nut 8 so as to overcome the movement to the right imposed by the lead screw 7. End switches (not shown) determine the length of travel of each gripper and these distances may be varied randomly within certain limits. The jaws 2 are mounted in a hollow shaft 12 and may be rotated in bearings 4 by a splined shaft (5), Fig. 2 (not shown), and a pair of gears 6 (only one shown).
Patent GB-884230-A (GB)
Title: Separation of asphalt type bituminous materials
Inventor: GARWIN LEO
IPC: C10C3/08
Filed: 1957-12-23
Abstract: An asphaltic material containing asphaltines, is separated into at least two fractions, one containing asphaltines and being free of resins and oils by treating each volume of the material with at least two volumes of a solvent comprising at least one C 4-7 mono-olefin the temperature being at least 125 DEG F. and sufficient to allow a bulk interface to form between a separated liquid phase asphaltine fraction and the solvent solution of residual asphaltic material, the temperature and pressure being adjusted to give a solvent density at least as great as K/MV (K being between 3,2 and 3,8; and MW being the molecular weight of the solvent) but less than that density at which no liquid phase separation of asphaltines occurs, and separating the asphaltine fraction while in the liquid phase.  The other fraction can be separated in resins and oils by a similar treatment but at temperatures and pressures relating to a solvent density between 0,23 and K/V Mol. wt.  Solvents specified are butene-1, butene-2, isobutylene and pentene-2.  Specifications 774,597 and 884,229 are referred to.
Patent GB-877631-A (GB)
Title: Improvements in or relating to the copolymerisation of vinylidene chloride and vinyl chloride
IPC: C08F214/08
Filed: 1959-11-24
Abstract: Vinyl and vinylidene chlorides are co-polymerized in aqueous emulsion in two stages.  In the first stage, 40%-60% of each monomer, in an aqueous emulsion including a catalyst and at least one emulsifier, which comprises an alkali metal sulphonate or sulphate group and either a C12-C20 alkyl or alkenyl group or a C12-C20 alkyl-substituted aryl group, are copolymerized to 40%-90% conversion; in the second stage, a monomer mixture comprising 60-90 weight per cent of vinylidene chloride and 40-10 weight per cent of vinyl chloride are added and the polymerization is continued to 90%-95% overall conversion, 20-50 weight per cent of the total monomers being added in the first stage and the balance in the second stage.  The emulsifiers specified are sodium dodecyl benzene sulphonate, sodium octadecylbenze sulphonate, N-octadecyl disodium sulphosuccinamate, N-eicosanyl disodium sulphosuccinamate, potassium octadecylbenzene sulphonate, sodium oleyl sulphate and sodium octadecyl sulphate.  Catalysts specified are benzoyl, hydrogen, o, o1-dichloro benzoyl, caproyl, caprylyl and pelargonyl peroxides; tertiary butyl and triisopropyl benzene hydroperoxides; tertiary butyl diperphthalate and perbenzoate; sodium, ammonium and potassium persulphates; peracetic acid; and azobis-isobutyronitrile.  Suitable polymerization conditions are a temperature of 20 DEG -40 DEG C. and a pH of 2-3, which may be obtained with nitric acid.  0,1-1 weight per cent of glycerine may be added to control the molecular weight within the range 150,000-200,000.  The co-palmers may be coagulated with aluminium sulphate and compounded with dibutyl sebacate as plasticizer and tetrasodium hydrophosphate as stabilizer.  They may be extruded into bi-axially oriented films and are particularly suitable for use as food wrappings.  The products of the examples have a bulk density of 0,4-0,5 g/cc., an actual density of 1,65-1,7 g/cc. and a melting range of 126 DEG -141 DEG C.  Specifications 656,735 and 692,378 are referred to.
Patent GB-1085597-A (GB)
Title: Temperature control circuit
IPC: G05D23/24
Filed: 1965-09-20
Abstract: 1,085,597. Automatic control of temperature. SWIPORT N.V. Sept. 20, 1965 [Sept. 25, 1964], No.39973/65. Heading G3R. In an automatic temperature control system a temperature responsive resistor 5 is connected with resistors 5-9 in an A. C. energized Wheatstone bridge the error voltage of which is applied through a capacitor 10 to a directly coupled amplifier, comprising transistors 11, 12, 13. The amplified error signal is fed to the base of a transistor 30 having in the collector circuit a relay 31 for switching on and off in an unspecified manner, a heat source not shown. The transistor 30 is energized from a secondary 3 of a transformer through a rectifier 32 and has a resistor 34 in the emitter circuit of a high value so that the collector current is proportional to the voltage applied to the base. The relay 31 has a parallel capacitor 33 of a low value to cause the relay armature to slightly vibrate when the relay is energized. The bridge is energized from a secondary 2 of the transformer. Alternating current degenerative feedback for the directly coupled amplifier is derived from a resistor 24 and direct current degenerative feedback through a filter comprising resistors 25-27 and capacitors 28, 29. In another embodiment, the bridge is shunted by a diode to provide a direct-current component which, through a transistor differential amplifier, energizes an error indicating meter. Thermal feedback is provided by an auxiliary heat-sensitive resistor provided with a heating coil energized through an additional make contact of the relay 31, the combination is chosen to compensate for the temperature coefficient of the emitter-base voltage of the transistor 30.
Patent GB-1172614-A (GB)
Title: Improvements in or relating to arrangements for the control of fluid flow.
Inventor: SMITH REGINALD ALFRED GEORGE
IPC: F16L29/00
Filed: 1967-09-01
Abstract: 1,172,614. Pipe joints; valves. R. A. G. SMITH. 31 May, 1968 [1 Sept., 1967], No. 40081/67. Headings F2G and F2V. A manually operated valve has one connection 3, formed as a spigot and the other 4, as a socket of the same size, thus enabling one or more T-pieces 17, 117 to be connected to give an assembly of valves 111, 112, 113 capable of delivering fluid, such as air, to several outlets. As shown, the valve consists of a screw-controlled pin 14 entering a duct 7 of the same diameter to block it.
Patent GB-1017218-A (GB)
Title: Improvements in or relating to pneumatic conveyors for bulk material
IPC: B65G53/52
Filed: 1962-10-23
Abstract: 1,017,218. Pneumatic conveyers. F. J. GATTYS, [trading as FRANZ JOSEF GATTYS]. Oct. 23, 1962 [Oct. 23, 1961 and Feb. 26, 1962], No. 40088/62. Heading B8A. Bulk material is fluidized in a pneumatic conveyer duct by gas from a supply duct having elastically self-closing openings whereby the material is prevented from entering the duct when the gas pressure is reduced. The duct may be of synthetic resinous material pierced mechanically or by high-frequency sparks or ion accelerator. The supply duct may be tapered in stages.
Patent GB-1432325-A (GB)
Title: Metformine salt and compositions thereof
IPC: C07C239/00
Filed: 1974-09-17
Abstract: 1432325 Metformine acetylsalicylate SOC D'ETUDES ET D'EXPLOITATION DE MARQUES ET BREVETS SEMS 17 Sept 1974 [19 Sept 1973] 40436/74 Heading C2C [Also in Division A5] Metaformine acetylsalicylate of formula is prepared by reacting acetylsalicylic acid with metformine freshly prepared from its hydrochloride by passing down an ion exchange column.
Patent GB-986602-A (GB)
Title: Improvements in or relating to polymerisation apparatus
Inventor: RAMSEY KEITH WARD
IPC: C08G69/46
Filed: 1962-10-26
Abstract: 986,602. Degassing polyamides. BRITISH NYLON SPINNERS Ltd. Oct. 3, 1963 [Oct. 26, 1962], No. 40541/62. Heading B1M. A device for separating steam from molten polyamide comprises an expansion conduit 1 of increasing cross-section leading from the outlet pipe 5 of a continuous polymerization apparatus, and entering at an angle of 60-90 degrees to the vertical into the side of a vertical vessel 3, vented at the top and having at least one perforation 4 at the bottom, said vessel having a cross-section above the point at which said conduit enters at least as great as the greatest cross-sectional area of the conduit. As shown in Fig. 1, to which the above numerals relate, the substantially vertical vessel is rectangular in cross-section and tapers toward the bottom, but Fig. 2 (not shown) illustrates the use of a cylindrical vessel and a circular-section expansion tube. The apparatus may be made of stainless steel.