baber/WOPTO huggingface dataset:
Patent GB-1090859-A (GB)
Title: Improvements in or relating to timers or time alarm devices for cooking apparatus
IPC: G04F1/00
Filed: 1964-11-02
Abstract: 1,090,859. Transistor delayed switching circuit. PHILIPS' GLOEILAMPENFABRIEKEN N.V. Nov. 2, 1964 [Nov. 5, 1963], No. 44548/64. Heading H3T. [Also in Divisions G3 and G4] A cooking time alarm circuit for egg-boiling includes a temperature-sensitive resistor 5 for immersion in the water and an alarm buzzer 29 in circuit with a switch 20 controlled by a relay 17. When resistor 5 is cold, transistor 1 is conducting. A diode 20 and transistor 3 are also conducting and a Miller condenser 12 is charged. The current through transistor 2 is negligible. Transistor 4 is conducting so that the relay 17 holds switch 60 off. When the water has reached, say, 70‹ C., transistor 3 is cut off. Transistor 2 begins to conduct and condenser 12 is discharged at a very low rate. As boiling point approaches the voltage drop across resistor 10 decreases and condenser 12 discharges more rapidly. This time is adjustable by resistor 11. Eventually, transistor 4 is cut off, switch 60 returns to rest position and the alarm buzzer 29 is operated. In a modification, Fig. 2 (not shown), the circuit includes an emitter follower in the Miller feedback circuit and a voltage stabilizing network supplying D.C. from an A.C. mains.
Patent GB-1128663-A (GB)
Title: Manufacture of valved gusseted bags from seamed plastics tubing
IPC: B31B160/10
Filed: 1965-10-21
Abstract: 1,128,663. Making tubes. WINDMOLLER & HOLSCHER. 21 Oct., 1965 [28 Dec., 1964], No. 44636/65. Heading F2P. [Also in Division B5] An asymmetric plastics tube formed by folding opposite edges 4, 5 (Fig. 1, not shown) and welding, then has the gusset formed so that valves 8 previously secured to the edge of the sheet are disposed on the edge of the tube. The weld 6 may be disposed by the depth 8 of the gusset from the tube edge so that the gussets 2<SP>1</SP>, 3<SP>1</SP> (Fig. 2, not shown), are subsequently formed symmetrically. Alternatively, the weld may be twice this distance from the tube edge (Fig. 5, not shown), and the gussets then formed one entirely at 42, 50, 44 from the upper sheet and the other at 46, 51, 52 entirely from the lower sheet. Conventional tubing, welding and gusseting devices are shown for forming the tube, and, where the gussets are each to be formed entirely from one layer of the tube, the tube is turned to an adjustable device through a suitable angle before it is gusseted.
Patent GB-1423185-A (GB)
Title: Specimen holder and arrangement for registration and read out  thereof
IPC: G01N35/00
Filed: 1973-09-24
Abstract: 1423185 Specimen holder J BANCSICH W HADRIAN and A MARKSTEINER 24 Sept 1973 [27 Sept 1972] 44642/73 Heading G1B A specimen holder such as a test tube or slide, in particular for utilization in computerized laboratory operations includes a data carrier from which there are to be derived the necessary characteristic data for the identification of the specimen, wherein the data carrier includes magnetizable material and wherein the carrier is arranged as a shaped part detachable from the specimen holder. The magnetizable material on which the characteristic data is to be recorded, may be in the form of a uniformly distributed layer of magnetic particles e.g. magnetic tape or in the form of separate magnetizable elements. The holder is illustrated in Fig. 1 wherein a specimen holder in the form of a test tube 1 is provided with a detachable ring 2, which ring has a number of lengths of magnetizable wire 5 distributed over its periphery. The specimen holder and or shaped part is preferably provided with a physically incorporated identification mark, for example a projection or depression Figs. 2 and 3 (not shown).
Patent GB-933424-A (GB)
Title: Improvements in or relating to rotary fluid pressure actuators
Inventor: MARTON-FALVY IVAN CHARLES DE
IPC: F15B15/08
Filed: 1961-12-14
Abstract: 933,424. Fluid-pressure apparatus. E. MATHEWS ENGINEERING CO. Ltd. May 31, 1962 [Dec. 14, 1961], No. 44839/61. Class 69 (2). A fluid-pressure actuator comprises a pair of double-acting pistons 25 mounted in juxtaposed and mutually-parallel cylinders 11, 12, an output shaft 23 mounted in bearings so as to extend between the cylinders and normal to their axes, and racks 26 on the pistons engaging a pinion 24 on the shaft. The cylinders are formed in a housing 10 which is formed with passages connected to ports 28, 29 and openings leading into the ends of the cylinders. The passages are arranged so that the port 28 is connected to the left-hand end of cylinder 11 and right-hand end of cylinder 12 and the port 29 is connected to the opposite ends of the cylinders whereby fluid supplied from a source under the control of a selector valve to port 28 or port 29 moves the pistons in one direction or the other to rotate the shaft which is mounted in bearings in the housing. The ends of the pistons are provided with plungers 46 urged outwardly by springs 47 to engage the openings at the ends of the cylinders as the pistons approach the ends of their strokes so that the flow of fluid from the cylinders is restricted to provide a dampening effect. The pistons are provided with seals 27 and the space between the seals is connected by a one-way valve to the outside of the body to relieve pressure in the central portions of the cylinders. The stroke of the pistons may be varied by altering the plungers 46 so that, when retracted, they still project from the ends of the pistons. Friction between the pistons and the walls of the cylinders may be reduced by forming the pistons with longitudinal grooves for receiving balls arranged to engage the bottoms of the grooves and the walls.
Patent GB-1167753-A (GB)
Title: Device for Hydroponic Cultivation
IPC: A01G27/00
Filed: 1966-10-07
Abstract: 1,167,753. Watering plants. CULTURE SANS TERRE S.A. 7 Oct., 1966 [13 Oct., 1965], No. 45048/66. Heading A1E. Apparatus for periodic watering of seeds or plants comprises a framework including inclined shelves which support perforated cultivating pans and the rear rails 11 of which include watering nozzles. A valve 22 is automatically opened and closed by a counterweighted balance arm 31 to supply water to the nozzles via one-way valves 41 1 -48 4 . In operation water passes from reservoir 43 via an adjustable drip feed 40 into a stationary tank 39. When the water in the tank reaches a certain level it is syphoned via tube 39, into a tank 38 on the arm 31. The weight of the water opens the valve 22 and the watering phase lasts until the water in tank 38 reaches a certain level and is drained off via syphon tube 38 1 . The valve is then closed and the cycle recommences, the interval between waterings being determined by the feed 40. The reservoir is replenished via tube 45. Mineral salts tablets are introduced into the water via tap 54. Reference has been directed by the Comptroller to Specification 991442.
Patent GB-1478773-A (GB)
Title: Device for stopping a pouring nozzle of a metallurgical vessel
IPC: B22D11/10
Filed: 1975-10-31
Abstract: 1478773 Stoppers for metallurgical vessels CENTRE DE RECHERCHES METALLURGIQUES - CENTRUM VOOR RESEARCH IN DE METALLURGIE 31 Oct 1975 [31 Oct 1974 28 Nov 1974] 45164/75 Heading F4B A non-replacable stopper for the pouring nozzle of a metallurigical vessel comprises a body 6 to be located in the nozzle bore, a head 7 engaging the inner surface of the vessel at the nozzle entrance, and a shouldered element 8 engaging the outer surface of vessel at the nozzle outlet, at least one of the head or the shouldered element having a screw thread co-operating with a thread on the body for movement longitudinally of the body. The head 7 is tapered to seat in the inlet funnel 4 of the nozzle and preferably has a conical top. The shouldered element 8 engages a base collar 10 sealing against the nozzle, and the body 6 has a notch 11 at the end of the threads on which the element 8 is engaged. The body and elements are made of material of better heat conductivity than the refractory of the nozzle, and at least the head 7 is of less density than the molten metal, so that when the element 8 is broken off the head 7 can rise through the melt. The head may be of graphite, and may be arranged to break from the body 6 and part 8.
Patent GB-1026875-A (GB)
Title: Process for increasing the surface area of organic dyestuffs and pigments
Inventor: CLARKSON COLIN
IPC: C09B67/16
Filed: 1961-12-18
Abstract: The surface are of a crude pigment or dyestuff is increased by thoroughly mixing the pigment or dyestuff with a quantity of sulphuric acid which is sufficient to convert the pigment into its sulphate but insufficient to prevent the formation of a free-flowing powder, and subsequently mixing said free-flowing powder with water. The dyestuff or pigment may subsequently be milled, for example, with sand and water or an organic solvent. Examples illustrate the treatment of copper phthalo-cyanine, copper chlorophthalocyanine, 16:17 - dimethoxydibenzanthrone, 7:16 - dichloro-6:15-indanthrone and and 1:4:5:8-tetraamino-anthraquinone.
Patent GB-1254557-A (GB)
Title: Sterilizable packings
Inventor: GOMM ALBERT FRANK
IPC: B65D33/16
Filed: 1968-09-25
Abstract: 1,254,557. Sterilizable bag and cap; sterilizable pack. JOHN DICKINSON & CO. Ltd. 28 Oct., 1969 [25 Sept., 1968], No. 45466/68. Headings B8C and B8K. A cap 13 for a bag 1 comprises a single sheet of material folded at 19 to form a front panel 15 and a rear panel 17 which are secured together at their side edges by adhesive 21. The panel 15 is provided with two strips of latex adhesive 25 and 27. To seal the bag 1, the cap 13 is placed over the open end 11 of the bag, the cap 13 with the upper end of the bag therein is then folded at 29 so that the strips of adhesive 25 and 27 come into mutual engagement. In an alternative embodiment (Fig. 3a), the length of the front panel 15 is half the length of the rear panel 17 and the adhesive strips 31 are provided along the exposed areas of the side edges. In a further embodiment (Fig. 3b) the cap is formed with front and rear panels of the same length, but with the front panel 15 folded back upon itself and secured to itself by adhesive (33) and to the back panel (17) by adhesive (21). Latex adhesive strips 31 are provided on the side edges of the cap to secure the cap in position on the bag after folding. By a further arrangement the cap 13 may be formed by sealing together transversely the internal surfaces of a continuous tube and severing the tube adjacent to and parallel with the transverse seals.
Patent GB-1272489-A (GB)
Title: Demulsification of paraffinic oils
Inventor: WALKER JAMES HAYDEN
IPC: C10N40/00
Filed: 1969-09-16
Abstract: 1,272,489. Hydraulic fluid; turbine oil. CHEVRON RESEARCH CO. 16 Sept., 1969 [16 Sept., 1968], No. 45645/69. Heading C5F. An hydraulic fluid or turbine oil comprises a lubricating base oil containing less than 30% aromatic carbon atoms, (a) 0À1-2 wt. per cent of a zinc organic phosphorodithioate salt as antiwear and antioxidant additive and (b) 0À01-0À2 wt. per cent of a demulsifying composition having 1-5 parts by weight of a C 5 -C 12  mono- or di-alkanol per part by weight of an oil-soluble organic sulphonate of a Group II metal of atomic number at least 30, the composition containing no metal oxide or hydroxide. In the examples the additives were (a) zinc dialkyl dithiophosphate, (b) 4-methyl-2-pentanol or hexylene glycol with zinc dinonyl naphthalene sulphonate or barium dialkylbenzene sulphonate. Optional components such as dibutyl p-cresol, methylene bis-(4,4<SP>1</SP>-di-[2,6-di-tert-butylphenol]), dibenzylsulphide, and tetrapropenyl succinic acid may be present in minor amounts.
Patent GB-1284556-A (GB)
Title: Sound reproducing apparatus
IPC: G11B33/06
Filed: 1969-09-17
Abstract: 1284556 Playback of grooved cylindrical records CIA INDUSTRIAL DE NOVEDADES PLASTICAS Y METALICAS SA 17 Sept 1969 [21 Sept 1968] 45845/69 Heading GSR In a sound reproducing apparatus usable in a doll, a record cylinder 28 carrying at least one helical groove rotates with a shaft 26, a spring 104 causing a reel 34 to drive the shaft in only one direction (anti-clockwise in Fig. 1) through a coiled wire clutch 94 wound on the shaft, the speed being determined by governor 32 and a stylus 114 travels on a carrier 112 to transmit sound to a speaker 116. When the string 90 is pulled to rotate the reel 34 clockwise and wind the spring 104 from a storage drum 100 to the reel drum 88, the wire clutcn 94 disengages so that the record cylinder remains stationary and the shaft 26 is also pulled down in slot 22 to release the stylus 114 from the groove and the stylus returns to its starting position under the action of a spring (110, Fig. 4, not shown). When the string 90 is released, the spring 104 unwinds to drive the reel 34, the clutch 94 re-engages thus driving the shaft 26 which also moves upwards so that the stylus enters one of several interleaved helical grooves according to the starting position of the cylinder. The governor consists of planetary gears 58 (60) and 62, which cause pivoted weights 76, 78 to rub against a stationary drum 50.
Patent GB-1358254-A (GB)
Title: Location apparatus for sawing operations
IPC: B27G5/02
Filed: 1971-04-19
Abstract: 1358254 Jigs for use in hand sawing G W WYNN 20 May 1971 [20 Feb 1970 1 March 1971] 46070/73 and 46071/73 Divided out of 1358251 Heading B5L A jig for use in making a saw-cut in a workpiece comprises a base 2 from which there projects a saw guide member 12 defining a saw guide plane extending transversely to the base. A face of the member 12 is coplanar with a face of the base 2 to define a support plane for a workpiece, and location means is provided to control the position of the workpiece in a direction transverse to the saw guide plane. As described the jig includes a member 6 carrying a second saw guide member 12a, the members 12 and 12a each including a wearresistant plate 16 defining the saw guide plane and against which the saw blade is urged by nylon strips 20. In use the workpiece is located against the rear faces of the members 2 and 12 and is held in position by hand or a clamp, not shown, or by the member 6 after this has been repositioned. The workpiece side face is engaged with one blade 40a of a selector head 38, or with a limb 36 of a gauge bar 30 after this has been relocated in a slot 58. An adjustable stop 44 is provided on the or each member 12, 12a to control the depth of cut. In a second embodiment, Fig. 4, lateral location of the workpiece is provided by an adjustable member 66, 68. A wedge 71 may be attached to the member to position the workpiece for dovetail cutting. In a further embodiment an adjustable bracket locates the workpiece laterally and the member 12 has stops which engage the top face of the workpiece. In another embodiment the base is in the form of an angled plate and lines at various angles are marked on the horizontal and vertical faces thereof to assist in locating a workpiece relative to the saw guide plane.
Patent GB-1136500-A (GB)
Title: Improvements relating to the manufacture of thin-walled cylindrical articles
Inventor: WEBSTER EDWARD
IPC: B21D22/28
Filed: 1966-10-15
Abstract: 1,136,500. Making hollow articles; stamping. EDWARD WEBSTER Ltd. 5 Oct., 1967 [15 Oct., 1966], No. 46208/66. Headings B3A and B3Q. A method of making a thin walled cylindrical article such as the shell or cover of a lipstick container includes the steps of pressing a shallow cup from mild steel strip or sheet, copper plating the cup and then subjecting the cup to a series of drawing operations A to G (Fig. 3) to bring it to the required form. The last drawing operation G may provide the article with corrugations. The article is then trimmed (Fig. 5), plated with brass or nickel followed by brass, polished and lacquered.
Patent GB-1029446-A (GB)
Title: Dry pigment compositions for dyeing plastics
IPC: C08F283/06
Filed: 1964-11-13
Abstract: A dry pigment composition for dyeing plastics comprises, in finely divided form, a pigment and a graft polymer obtained by graft polymerizing an ethylenically unsaturated compound on to a polyalkylene oxide and/or a formaldehyde-polyalkylene glycol polyacetal. Polymerizable compounds specified are ethyene, styrene, butadiene, acrylic and methacrylic acids and their amides, esters and nitriles, vinyl esters, and vinyl and vinylidene chlorides.  Pigments specified are azo, anthraquinone, guinacridone, dioxazine, thioindigo and phthalocyanine pigments, carbon black, rutile and iron, cadmium, chromium and zinc pigments.  Also present in the compositions may be plasticizers, e.g. dicyclohexyl phthalate and triphenyl phosphate. The compositions may be made either by kneading together the graft copolymer and pigment, or by milling the copolymer and pigment in a liquid medium, followed by drying the mixture.  The compositions are used for colouring polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyacetals, polyamides, polyesters, polycarbonates and cellulose esters and ethers.  The Specification describes also the preparation of graft copolymers by (A) the bulk polymerization of styrene and methyl methacrylate with polyethylene oxide and polyacetals from formaldehyde and diethylene and triethylene glycols, and (B) the aqueous phase polymerization of vinyl chloride with polyethylene oxide, the polymerizations being carried out in the presence of peroxy compounds.
Patent GB-1171926-A (GB)
Title: Improvements in or relating to Transfer Systems.
IPC: B41M5/10
Filed: 1966-10-19
Abstract: 1,171,926. Polymer compositions. RENKERBELIPA G.m.b.H. 19 Oct., 1966 [19 Oct., 1965], No. 46849/66. Heading C3P. [Also in Division D2] Pressure-sensitive copying material (see Division D2) comprises a transfer-inducing layer of ethylene polymer of which a major part is in the form of particles, but a minor proportion in the dissolved state. The solvent for the polyethylene may be a liquid aliphatic hydrocarbon of 4 to 12 carbon atoms, a liquid aliphatic chlorinated hydrocarbon of 1 to 6 carbon atoms or a fatty alcohol of 6 to 18 carbon atoms used with water as a dispersing agent. The ethylene polymer may be a copolymer, e.g. with a vinyl ester or ether, or a mixture of polyethylene with such a copolymer. In the Examples: (I) polyethylene is dissolved in carbon tetrachloride, applied by a heated application roller and cooled to gel it, excess of polyethylene is removed by a doctor, and of solvent by evaporation: (II) the layer comprises two polyethylenes of different molecular weights and benzine 110/140; (III) the layer comprises the same two polyethylenes as in Example II and trichloroethylene; (IV) the layer comprises an aliphatic carboxyl-containing hydrocarbon compound, polyethylene and trichlorethylene.
Patent GB-1503142-A (GB)
Title: Vehicle suspension
IPC: B60G5/047
Filed: 1975-11-17
Abstract: 1503142 Tandem axle suspensions YORK TRAILER CO Ltd 3 Feb 1976 [17 Nov 1975] 47308/75 Heading B7D In a tandem axle suspension comprising leaf springs 2, 4 connected to each end of axles 6, 8, the axles are located by radius rods 30, 32, and both ends of each spring engage respective slipper pads 12 on pivotally mounted racker plates 14, 16, 18, 20 which are interconnected by a link 26 to equalize the axle loads. The adjacent ends of the two springs may engage respective slipper pads on a common rocker plate, and inflatable air bags are provided for lifting one axle.
Patent GB-1004532-A (GB)
Title: Audio frequency transistor amplifier
IPC: H03F3/185
Filed: 1962-12-18
Abstract: 1,004,532. Transistor amplifying circuits; amplifier circuits. RADIO CORPORATION OF AMERICA. Dec. 18, 1962 [Jan. 2, 1962], No. 47830/62. Headings H3T and H4J. A signal translating system having a high impedance transducer in its input circuit is characterized in that a unipolar transistor has its gate circuit coupled to the transducer so as to derive the full output voltage. As described, Fig. 1, a gramophone amplifier for a crystal pick-up 5 has a tone control comprising capacitors 8, 10 and resistor 9 and a volume control 28 feeding a unipolar transistor pre-amplifier stage 12, the input impedance of which is high. The output from this stage is fed to driven amplifier 39 in the output circuit of which is a transformer 73 giving an impedance step-down in the order of 50: 1, and having a push-pull output winding. In order to maintain a low source impedance for the push-pull output stage, transistors 70, 71 are biased by a pair of diodes 91, and negative feed-back is provided over a first path comprising resistors 53, 54, 56 and capacitor 55, a second path comprising resistor 61 and capacitor 60, and a third path comprising resistor 61 and capacitor 60, and a third path comprising resistor 66 and capacitor 65. In a modification, Fig. 2, the driver stage is omitted and the transformer primary 74 is connected to the output of the unipolar transistor. The resistor 66 is omitted from the feed-back path 64, which is coupled to the electrode 19 of the unipolar transistor instead of the electrode 20, and the shunt resistor 61 in the feed-back path 59 is replaced by series resistor 96. The tone control circuit is replaced by capacitor 100 and resistors 101, 102 in the output circuit of the unipolar transistor 12. Specification 1,004,531 is referred to.
Patent GB-1494959-A (GB)
Title: Seal mounting arrangement
IPC: F16J15/34
Filed: 1975-11-21
Abstract: 1494959 End-face rotary seals INGERSOLLRAND CO 21 Nov 1975 [23 Dec 1974] 47987/75 Heading F2B An end-face rotary sealing assembly comprises a rotary sealing element 22; a housing 16; and a fixed sealing element 24, the rotary sealing element 22 having a central bore, two parallel radial faces 36, 36<SP>1</SP>, one of which, 36<SP>1</SP>, forms a seal with the fixed sealing element 24, and a peripheral surface 34 with lobes 38, 40, Fig. 2, which engage with complementary surfaces 38<SP>1</SP>, 40<SP>1</SP> of the housing 16 in such a way as to prevent relative rotational movement, to allow relative axial freedom, and to provide a void (not shown) connecting the two radial faces 36, 36<SP>1</SP> of the rotary sealing element 32. The embodiment shows a machine 10, such as a gas compressor, incorporating two sealing assemblies of the invention, each with a threelobed sealing element 24 of, e.g. sintered titanium or tungsten carbide. The connection between the radial faces 36, 36<SP>1</SP> is provided partly by passages 20, 28 in the housing 16 and partly by radial clearance between the rotary sealing element 22 and the housing 16. It is said that the form of the sealing element 22 allows it to be reversed, and thus to double its working life.
Patent GB-1081352-A (GB)
Title: Photographic elements
IPC: G03C1/34
Filed: 1964-12-01
Abstract: 1,081,352. Photographic silver halide materials. EASTMAN KODAK CO. Dec. 1, 1964 [Dec. 20, 1963; Sept. 25, 1964], No. 48724/64. Heading G2C. A photographic silver halide emulsion which is carried on a liner aromatic polyester film support is protected from fogging by the incorporation in the emulsion or in a layer between the emulsion and the support of hydantoin, parabanic acid or a compound of the general formula:- wherein Z represents the atoms required to complete a heterocyclic ring and R' is hydrogen, or substituted or unsubstituted alkyl or aryl, or a monoacryl or diacyl derivative of a compound of the above general formula. Compounds of the above formula are urazole, 4-(1-naphthyl)-, 4-phenyl- and 4-ethyl urazoles, maleic acid hydrazide, phthalic acid hydrazide, and diacetyl derivatives of urazole and 4-phenyl urazole.