baber/WOPTO huggingface dataset:
Patent GB-1448339-A (GB)
Title: Transfer device
IPC: G03G15/16
Filed: 1974-06-07
Abstract: 1448339 Transferring charged images MINNESOTA MINING & MFG CO 7 June 1974 [8 June 1973] 25511/74 Heading B6C [Also in Division F2] An image, e.g. produced electrophotographically, is transferred from band 1 to copy sheet or web 15 by being urged together by roller 19, charged to attract the image. The roller is formed with an electrically conductive apertured member overlain with a pile fabric having electrically conductive loops, and vacuum is applied to the inside of the cylinder to hold copy sheet or web against the roller. A layer of resilient material, e.g. rubber or a sponge material, may be arranged between the member and the pile fabric. The pile fabric may be a metal impregnated synthetic pile fabric. The suction may be released, and an air blast applied to release the copy sheet or web for removal on conveyer 33 to be carried to, e.g. a fuser or cutter. Belt 1 is supported by platen 11 and the whole assembly moved to the right as shown by the arrow.
Patent GB-426119-A (GB)
Title: Improvements in or relating to lock and latch cases and to means for affixing them to doors and drawers
IPC: E05B9/08
Filed: 1934-09-06
Abstract: 426,119. Lock cases &c. GRAY, L., The Rectory, Wanlip, Leicester. Sept. 6, 1934, No. 25613. [Class 44] A lock or latch case has its back so shaped that it can be inserted into a wedge-shaped cavity cut to receive it in the door or other article. A staple for the lock or a case for a bolt is similarly formed. A front plate a has an integral portion b bent at right angles to it, and a back case e is secured to the parts a, b to enclose the lock mechanism, but no part of the case e projects beyond the line X-X. The whole case may be bent from a single sheet of metal. A staple for the lock or latch is made by bending a sheet of metal once at right angles to form a face and edge surface and again at an angle to form a tapering enclosure, a hole for the bolt or latch being formed in the end surface.
Patent GB-853173-A (GB)
Title: Improvements in machines for the continuous mixing of fluids or solids
IPC: B01F7/00
Filed: 1958-08-08
Abstract: 853,173. Mixing. HOPTON, S., [trading as CHEMICAL EQUIPMENT ENGINEERING CO.]. Aug. 14, 1959 [Aug. 8, 1958; Oct. 29, 1958], Nos. 25619/58 and 34564/58. Class 86 Apparatus for mixing fluids and/or solids consists of high speed rotary impellers b, b<SP>1</SP> in a cage C, the lower impeller b producing axial flow as well as centrifugal flow and the upper impeller b<SP>1</SP> producing only centrifugal flow. The cage C is supported in a partition a<SP>4</SP> in a casing A which is secured to an adapter A<SP>1</SP> having three inlets a for the different constituents of the mix. The impellers b, b<SP>1</SP> are mounted on a motor shaft B and further rotary members may be provided on the shaft B to increase the mixing action. The degree of mixing is determined by the shape and size of the slots c in the cage, and these characteristics may be adjusted by providing a skirt on the impeller b<SP>1</SP> to mask the slots c to a greater or lesser extent depending upon the relative axial adjustments of the cage and the impellers. The axial adjustments may be effected by arranging the shaft carrying the impellers to be slidable in a tube driven by the motor. This arrangement regulates the amount of recirculation of the materials through the slots below the partition a<SP>4</SP>. In a modification, the cage C is axially adjustable by providing it with a closed bottom which rests upon a screwed adjustable spindle.
Patent GB-1310065-A (GB)
Title: Recovery of molybdenum values
IPC: C01G39/00
Filed: 1971-04-19
Abstract: 1310065 Recovery of Mo values AMERICAN METAL CLIMAX Inc 19 April 1971 [15 May 1970] 25659/71 Heading C1A Crude Mo oxide material, of <50 mesh, is treated with NH 4 OHaq. (NH 4 OH:Mo>2:1) to convert MoO 3  to (NH 4 ) 2 MoO 4  which is separated as an aqueous solution (1), the residue being at least partly oxidized to convert MoO 2  to MoO 3  and again treated with NH 4 OHaq. to produce a further solution (2): solutions (1) and (2) are combined and (NH 4 ) 2 MoO 4  is crystallized out and calcined to MoO 3 , NH 3  and H 2 O. The residue may be oxidized by being suspended in aqueous solution and treated with air under pressure, or by direct roasting in air, or the residue may be classified particles >150 mesh being oxidized, and those <150 mesh being treated with alkali metal carbonate solution to form a solution of alkali metal molybdate from which Mo values may be recovered by precipitation as Group II metal molybdates, and this treatment may also be used on the residue after removal of solution (2), the residue still remaining being oxidized and further treated with alkali metal carbonate solution. The solution remaining after crystallization of (NH 4 ) 2 MoO 4  may be treated with S= to precipitate Cu and Zn.
Patent GB-730364-A (GB)
Title: Cigarette-holder
IPC: A24F13/06
Filed: 1953-09-17
Abstract: 730,364. Cigarette holders. BARNETT, J. M. Sept. 17,1953, No. 25687/53. Class 130. Silica gel or other granulated filtering material 6 is retained in a holder a by a frustoconical socket b having teeth 9, originally sprung-out, which prevent its withdrawal once inserted in the holder, a cylindrical portion 8 of the socket receiving and slightly compressing the cigarette end which is of a size to fit the holder entrance 1. The holder a mav be of a "plastic" material and may be included in a packet of cigarettes for use only therewith.
Patent GB-221664-A (GB)
Title: Improvements in or relating to metallic bedsteads
IPC: A47C19/02
Filed: 1923-10-17
Abstract: 221,664. Fitter Bros., Ltd., and Fitter, C. R. Oct. 17, 1923. Mattresses.-In a folding mattress frame, each end member 3, 4 is pivoted at one end 5, 6 to a side member 2, 1 and is detachably connected at its other end to the other side member. The free ends of the end members may be provided with bolts 11 to pass through holes in the side members and to be engaged by nuts 15, and the frame members may be of angle iron, so that, when detached, they may be folded together as shown in Fig. 9.
Patent GB-269799-A (GB)
Title: Improvements in steering mechanism for automobile vehicles
IPC: B62D3/02
Filed: 1926-10-18
Abstract: 269,799. Poyet, J. Oct. 18, 1926. Non-reactive steering-mechanism.-The steering-shaft is connected to the steering stub-axles by two independent mechanisms so as to prevent steering wobble, and for this purpose a worm 3 on the steering-shaft 1 gears with two sectors 4,5 which are connected by independent link mechanisms 6, 8 and 7, 9 to the two stub-axles.
Patent GB-1172718-A (GB)
Title: Current Limiting Apparatus.
IPC: H02H9/02
Filed: 1967-06-06
Abstract: 1,172,718. Protective arrangements. TEXAS INSTRUMENTS Inc. 6 June, 1967 [10 June, 1966], No. 25959/67. Headings H2H and H2K. [Also in Divisions H1 and H3] A load R1 having transistors requiring protection has in series a non-linear PTC element 13 comprising a pair of flat metal plate electrodes 15, 17 of comparatively large area and small distance apart spaced by a wafer of semiconductor material which sharply and regeneratively increases in resistance above a determined current flow. A relay coil W1 connected either in series or in parallel with element 13 opens contacts K1, K2, on a sustained overload. The semi-conductor material may comprise barium titanate doped with a rare earth or a carbon black filled plastic material.
Patent GB-731778-A (GB)
Title: Improvements in or relating to organic peroxides
IPC: C08F4/34
Filed: 1953-09-21
Abstract: Almost anhydrous pastes comprising an organic peroxide and a plasticizer which is used as such in the manufacture of synthetic resins is made by kneading a moist organic peroxide with a plasticizer to form a coherent mass and removing the water thus separated out.  Benzoyl and p-chloro- and 2,4-dichlorobenzoyl peroxide and cyclohexanone hydroperoxide are specified. Preferably not more than 40 per cent by weight of the plasticizer calculated on the dry peroxide is first kneaded with the peroxide the separated water being removed and the remainder of the plasticizer kneaded in to form a paste.  Most conveniently the initial quantity of plasticizer added is one third of that needed for a 50 per cent peroxide-plasticizer paste.  Preferably kneading is performed at about 40 DEG  C.  Last traces of water may be removed by, after water removal, a final kneading under pressure and with gentle heating. Dibutyl phthalate and tricresyl and triphenyl phosphates are specified plasticizers.  An example is provided in which benzoyl peroxide is kneaded with dibutyl phthalate.
Patent GB-897785-A (GB)
Title: Improvements in or relating to space heating systems
IPC: F24D3/00
Filed: 1959-07-29
Abstract: 897,785. Heating systems and space heating radiators for buildings. GRILLET, L. July 29, 1960 [July 29, 1959], No. 26051/59. Class 64(2) A space heating system in which a pulsating circulation of liquid is provided, comprises a closed circulation path including in series a sealed heater tank 1 having an outlet path 3 extending through a non-return valve 4 and series connected radiators (not shown) to a second tank 7. An inlet path 8 extends from the second tank 7 to the heating tank 1 and includes a non-return valve 9. When the vapour pressure in the heating tank 1 reaches a sufficient value, liquid is forced to flow from this tank through the radiators to the second tank 7. Thus the liquid in the second tank rises causing the float 10 to rise and to open a switch 11, which is in series with the heating element 2. The tank 1 then cools and vapour condenses causing a partial vacuum. This vacuum draws the liquid from the tank 7 through the pipe 8 to the heater tank 1. When the float in the second tank falls to a certain level it causes the switch to close again, and thus energizes the element 2. The second tank 7 is fitted with a bellows 12 which expands as the tank fills and collapses as the tank empties. The heater is also controlled by a thermostat responsive to the temperature of the liquid and another thermostat responsive to room temperature may be connected in series with the heater element. The radiators and pipes may be made of aluminium alloys or plastics materials.
Patent GB-478834-A (GB)
Title: Improvements in winding rods for wallpaper edge cutting machines
IPC: B44C7/02
Filed: 1936-09-26
Abstract: 478,834. Winding webs. LAYFIELD, J. M. Sept. 26, 1936, No. 26135. [Class 100 (i)] Collapsable spindles.-A collapsable winding spindle for a machine for trimming wall paper comprises two wooden rods a, b, Fig. 1, of segmental section supported at one end in recesses w, h, Fig. 8, in a casting i provided with a bore t and set screws s for connection to a driving shaft. A rib j between the recesses w, h spaces the rods apart at this end and the recess h is open at one side to allow the rod a to enter by a lateral movement. This rod is retained in the recess by the beaded end l of a substantially circular spring k embracing the casting. At the other end the rod b is provided with a fitting c having a pin u to engage a bearing, and the rod a is pivoted to the rod b by a pin g, the rods being spaced apart normally by a plate o slidable on the fitting c and adapted to be withdrawn into the space p to allow collapse of the rods at this end.
Patent GB-463065-A (GB)
Title: Improvements in or relating to tar and like hydrocarbon materials for road surfacing
IPC: C08K3/06
Filed: 1935-09-20
Abstract: Tars for road surfacing have incorporated therein waste materials containing sulphur from the purification of illuminating gas, the waste materials being first dried, finely ground and screened.  The waste materials may be spent oxides of iron and the mixing may be carried out at temperatures ranging from air temperatures to more than 100 DEG  C.; the final product may comprise tar 80-90 per cent, sulphur 10-5 per cent, iron oxide 10-5 per cent.  Specification 256,513, [Class 22], is referred to.
Patent GB-338915-A (GB)
Title: Improvements in the manufacture of decorative moulded objects
IPC: B44C1/10
Filed: 1929-08-28
Abstract: 338,915. Keller, A. V. Aug. 28, 1929. Moulding resins.-Decorative moulded objects are made from synthetic resins by laying a sheet of lace or other fabric, without preliminary impregnation, between a covering sheet and a backing of initial condensation product, the whole being then heated under pressure. Sheet material may be produced by passing a sheet of the fabric between two sheets of the initial condensation product, the three sheets being fed together between heated rollers. Specifications 228,565 and 267,096 are referred to.
Patent GB-673790-A (GB)
Title: Improvements in chairs
IPC: A47C7/40
Filed: 1950-10-26
Abstract: 673,790. Seats. RUSTAD, E., RUSTAD, A. and RUSTAD, E., (trading as RUSTAD, E.). Oct. 26, 1950. [Oct. 28, 1949] No. 26179/50. Class 52 (ii). In a chair particularly a revolving one of the kind in which the back rest comprises a member of circular cross section vertically adjustable in a clamp which is pivoted for angular adjustment with respect to the chair frame the clamp comprises a circular portion 3 for embracing half the circumference of the back member 2 and side arms 4 provided with inturned flanges 6 the edges of which are shaped to conform to the circumference of the back member 2. The clamp has its side arms 4 extended upwardly to pivot about a pivot 5 carried by the chair frame and a bolt 9 is provided passing through slots 17 in the plates 1 of the chair frame the bolt 9 being provided with washers 12, 14 sleeve 13 and nut 15 with hand wheel 16 whereby the side arms 4 and plates 1 are drawn together thereby securing the back member 2 in adjusted position. The pivot 5 is provided with a distance member 20 having an annular groove 18 with which slidably engages a rib 19 on the back member 2 to prevent the latter turning on its axis.
Patent GB-1529968-A (GB)
Title: Transistor circuits
IPC: H01L27/02
Filed: 1977-06-17
Abstract: 1529968 Compensating radiation effects in integrated circuits DEFENCE SECRETARY OF STATE FOR 17 June 1977 [23 June 1976] 26201/76 Heading H3T Spurious currents arising in an integrated circuit due to ionizing radiation falling on a junction are compensated by a circuit presenting a high impedance to the remainder of the circuit in the absence of radiation. In known logic circuits the current from transistor Ql which ought to turn transistor Q2 on may, in the presence of radiation, be so shunted through the collector-substrate junction of Ql (represented by a reverse biased diode DCSQ 1) that Q2 fails to turn on. According to the invention a compensating current is supplied by a circuit QA QB QC. QA is larger than QB and the photo currents 1, 2 through its junctions in the presence of ionizing radiation, outweigh the photo current in QB, to provide a net base current which is amplified by QB. The emitter current of QB flowing through resistor RA controls the flow of compensating current through QC to the collector substrate-junction of Q 1. If RA can be made large enough, the photo current of QC amplified by itself is sufficient to provide the compensating current and QA and QB can be omitted.
Patent GB-612517-A (GB)
Title: Improvements in the manufacture of alkali chromates
IPC: C01G37/14
Filed: 1945-10-08
Abstract: Alkali metal chromates are produced by heating at above 1000 DEG  C. in the presence of air, a mixture of chromium ore &c., an alkali or alkali salt, lime or a lime-containing body, e.g. dolomite, the silica content being adjusted to a predetermined value by the addition of silica or a silica compound, e.g. talc, so that substantially all the chromium is converted to alkali chromate.  The silica content required increases as the ratio Al2O3/CaO increases to 1/3 , and thereafter decreases as the ratio increases further.  The quantity of alkali used should be greater than that theoretically necessary for binding the chromium.  In an example, employing 1 part Cr2O3, 2 parts sodium carbonate and 4 parts lime and alumina mixture, the silica requirement for maximum yield is 0.7, 1.2, 2.0 and 1.0 for an Al2O3/CaO rato of 1/16 , 1/7 , \ba1/3 and 1/2 respectively.  Other examples are given.
Patent GB-317658-A (GB)
Title: Improvements in ball cocks
IPC: F16K3/26
Filed: 1928-09-14
Abstract: 317,658. Jones, A. W., and London Valve Co., Ltd. Sept. 14, 1928. Ball and float valves; closure members. - A cistern supply ball cock comprises a tapered hatleather packing or gland 9 and a ported tubular valve 8 operated by the float lever 11. The pressure of liquid on the external wall of the gland 9 assists in maintaining a tight joint. The valve casing may be formed so that the valve operates vertically, as shown, or horizontally. Specification 221,439 is referred to.
Patent GB-1159293-A (GB)
Title: Planographic Printing Plate and Process for Making the same
Inventor: CROKER JOHN HENRY
IPC: C08L61/20
Filed: 1966-06-14
Abstract: 1,159,293. Planographic printing plate. GESTETNER Ltd. 13 June, 1967 [14 June, 1966], No. 26445/66. Heading B6C. A planographic printing plate comprises a support sheet carrying a layer formed by the reaction, in aqueous solution, of a watersoluble urea-formaldehyde or melamine-formaldehyde resin precursor with a water-soluble synthetic polymer colloid containing free acid groups. The resin precursor is preferably hexamethoxymethylmelamine or trimethoxymethylmelamine; the colloid is preferably polyacrylic acid, an acrylamide/acrylic acid co-polymer or a vinyl ether/maleic anhydride co-polymer, the ratio of colloid to resin precursor being between 1: 1 and 5: 1 by weight; the layer may also contain inert filler, e.g. china clay, titanium dioxide, blanc fixe, or silica, the weight ratio of filler to colloid and resin being between 10: 1 and 1: 1. The layer weighs 5 to 30 gms/sq. metre support. The plate is made by mixing the resin precursor and the colloid in aqueous solution, suspending the filler in the solution, coating the solution on the support and then evaporating the water. The solution preferably has a pH of 3-5 and a concentration of colloid and resin of 3 to 15% by weight the water is evaporated at over 200 F., but below the decomposition temperature of the resin and colloid.
Patent GB-656284-A (GB)
Title: Improvements in and relating to shears and the like
IPC: A01G3/02
Filed: 1948-10-11
Abstract: 656,284. Shears. TUGGY, W. G. Oct. 11, 1948, No. 26460. [Class 30] Garden shears comprise a pair of pivoted scissor-like supporting members which are provided with tang ends for attachment to wood hand grips, thin cutting blades being secured to the facing surfaces of the supporting members by countersunk screws. As shown cutting blades 9, 10, which may be hollow ground and preferably extend as far as the pivot 6, are received in recesses in the supporting members 4, 5 and are secured by screws 11 the heads of which are recessed into the blades. A spring washer may be located on the bolt of the pivot which may be secured by a split pin or by a serrated lock washer. The closing of the blades is controlled by an adjustable stop 12 consisting of an eccentric washer 13 secured, after rotary adjustment on a stud, by a nut. The supporting members may be spaced apart by a collar equal in length to the joint thicknesses of the blades instead of being recessed to receive the blades.
Patent GB-656841-A (GB)
Title: Propellent powder
IPC: C06B45/02
Filed: 1947-10-01
Abstract: 656,841. Propellent explosives. BONELL, F. T. B. Oct. 1, 1947, No. 26518. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 1, 1947.] [Class 9 (ii)] Perforated and coated propellent powder has a grain with one or more axially arranged perforations, the average diameter of which is greater than the average web thickness. The length of the grain should be less than, e.g. ¢-2/3 times, the diameter, say 3-5 mm., and there may be 7, 19, or more symmetrically arranged perforations. A conventional method of preparing a nitrocellulose powder and of coating the grains is described, but it is stated that the quantity of moderant e.g. dibutyl phthalate, diamyl phthalate, or centralite should be 1.3-1.8 mg. per sq. cm. and it may be applied as an emulsion.
Patent GB-535023-A (GB)
Title: Production of amines by the catalytic hydrogenation of ªŠ-caprolactam or ªŠ-aminocaproic acid
Filed: 1939-09-25
Abstract: 535,023. Amines. DU PONT DE NEMOURS & CO., E. I. Sept. 25, 1939, No. 26597. Convention date, Sept. 29, 1938. [Class 2 (iii)] [Also in Group III] Hexamethylenediamine and hexamethyleneimine are prepared by the catalytic hydrogenation of e-caprolactam or the corresponding amino acid. Operation in the liquid phase favours the production of the diamini as the major product and of erection in the vapour phase favours the production of the emine. The hydrogenation is conducted in the presence of hydrogenation catalysts, and materials mentioned for this purpose include the metals of group VIII and of sub-group B in group 1 and 2 of the periodic table, either alone, in admixture, or combined with a difficulty redouble oxide of a metal of the 6th group. Catalysts specified include nickel or cobalt and nickel-cadmium-chromite, nickel-cobaltcadmium-chromite, cobalt chromite, nickel on magnesia, raney nickel, cobalt on kieselguhr, nickel chromite, copper chromite, zinc-copperchromite, and zinc-copper-cadmium-chromite. The catalysts are preferably and finely divided and may be deposited on a porous support such as pumice, kieselguhr, alumina gel, and silica gel. Hydrogenation temperatures of 200‹- 335‹C. are preferred although temperatures from 200‹C. to 400‹C. may be used. Pressures from 500 to 10,000 lb. per square inch are preferred for liquid phase operation and from atmospheric to 4,000 lb. per square inch for vapour phase operation. The hydrogenation may be carried out in the presence of ammonia. In examples (1) e-caprolactam is reduced in the presence of liquid ammonia using as catalyst nickel on kieselguhr to give hexamethylenediamine, a small amount of korry polymer of e-corprolactam is also produced ; (2) ecaprolactam is reduced in dioxane solution in the presence of barium-copper-chromite at 3,000 lb. per square inch, to give a mixture of hexamethylenediamine and hexamethyleneimine ; (3) e-caprolactam is passed with hydrogen and ammonia in vapour form over a cobalt-cadmium-chromite catalyst at 335‹C. at 3,000 lb. per square inch to give a major proportion of hexamethylenediamine. The Specification as open to inspection under Sect. 91 includes also hydrogenation in the presence of primary or secondary amines or materials which yield ammonia or these substances under the reaction conditions. Compounds mentioned in this connection are ammonium carbonate and urea as yielding ammonia. Amines mentioned include methyl, ethyl, butyl, nonyl and oleyl amines, ethylene diamine, cyclohexylamine, aniline and mono- N-alkylated amines. This subject-matter does not appear in the Specification as accepted.
Patent GB-792308-A (GB)
Title: Improvements in or relating to a method of heat stabilising halogenated vinylic resins
IPC: C08K5/58
Filed: 1955-09-16
Abstract: Halogenated vinylic resins are stabilized by incorporation of an alkyl tin sulphide, preferably in a proportion of from 1 to 5 per cent by weight with respect to the resin.  Preferably di-alkyl tin and tri-alkyl tin (especially di- and tri-butyl tin) sulphides are used.  In an example polyvinyl chloride containing a high melting point octadecenamide as lubricant is stabilized by tri-butyl tin sulphide.  Specification 792,309, [Group IV (b)], is referred to.
Patent GB-226505-A (GB)
Title: Improvements in thermionic oscillation generators
IPC: H03B5/10
Filed: 1924-11-07
Abstract: 226,505. Telefunken Ges. f³r Drahtlose Telegraphie. Dec. 19, 1923, [Convention date]. Thermionic generators. - A valve V has two anodes A, A<1> each connected through an oscillatory circuit C, L. C<1>, L<1>, and the same or separate batteries B, B<1>, to the middle point of the battery b for heating the cathode F. The two circuits are coupled to each other, and in the connection to one or both anodes, an impedance or inpedances C<2>, L<2> are connected with the object of producing phase opposition of the anode potentials.