baber/WOPTO huggingface dataset:
Patent GB-374311-A (GB)
Title: Improvements in or relating to electric oscillation generators
IPC: H03B11/08
Filed: 1931-07-14
Abstract: 374,311. Generating high-frequency oscillations. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Hansell, C. W.; Port Jefferson, Long Island, New York, U.S.A.) July 14, 1931, No. 20235. Convention date, July 14, 1930. [Classes 39 (i) and 40 (v).] Electric oscillations are produced by the rotation of an arc discharge which acts inductively on adjacent conductors. As shown in Fig. 1, a radial arc passes between a central circular electrode 4 and an outer annular electrode 6, and the arc is rotated through the annular gap by a magnetic field set up by the coils 10. As the radial arc passes the radial wires 8, it induces oscillating voltages therein, and radiation may take place from the extensions 16 of the wires 8, or the oscillations may be fed into a line or tuned circuit. The arc electrodes are mounted in an envelope (not shown), which may contain a rarefied gas. The space of rotation is dependent on the gas pressure, the field strength, and the voltage supplied to the arc. Frequency modulation is effected by a signal source coupled either to the arc supply leads 2 or to the circuit of the coils 10; or amplitude modulation may be effected by passing the oscillatory current through a triode valve which has its grid voltage varied by a microphone. The modulated output may be amplified and its frequency multiplied before passing to the aerial. Multiphase oscillations may be produced by using several pairs of radial wires such as 16, Fig. 1, spaced at equal angular intervals. The Specification as open to inspection under Sect. 91 (3) (a) includes the modification shown in Fig. 4 (Cancelled), in which the outer electrode is divided into two segments 46, 48 both eccentric with regard to the inner electrode 50. As the arc rotates in the direction of the arrow, it readily jumps from the remote horn of one segment to the nearer horn of the other. The segments are connected to opposite sides of a tuned oscillatory circuit. When several pairs of segmental electrodes are employed, alternate electrodes may be connected together to give a frequency which is a multiple of the speed of rotation. This subject-matter does not appear in the Specification as accepted.
Patent GB-471827-A (GB)
Title: Improvements in or relating to the production of suspensions of pigments
IPC: D21H17/69
Filed: 1936-07-22
Abstract: Non-aqueous suspensions of titanium pigments in thermoplastic materials such as paraffin wax, other natural or artificial waxes or resins, are obtained by mixing the pigment with the thermoplastic material when fluid, semi-fluid or in solution, preferably in equal parts, in the presence of a small amount, preferably 0,01 to 1 per cent, of a dispersing agent selected from polycyclic alcohols and their fatty acid esters, polyamines and their fatty acid esters, amino-acid bodies derived from animal organisms, e.g. brain extract, bile and egg-yolk or products prepared from such bodies, e.g. cerebrine and bilirubin. cholesterol, lethicin and triethanolamine stearate are particularly suitable.  Such agents are of the type which assist the formation of water-in-oil emulsions, and may be dispersed initially in substances such as lanoline or petroleum jelly which are soluble in the thermoplastic material.  The pigments treated consist substantially of titanium dioxide, which may be associated with extenders, e.g. calcium or barium sulphates or the titanates of lead, zinc or the alkaline-earth metals.  The suspensions are made with the aid of kneading or mixing machines, and temperature variations, such as cooling, which may be repeated several times if desired after remelting, assist the formation of the suspensions.  If desired, a concentrated suspension may be prepared first and then mixed with more thermoplastic material. Moisture affects the dispersion adversely.  The products are particularly suitable for impregnating fibrous materials, e.g. paper, cardboard or paperboard to render them impermeable to liquids and gases and to give an opaque finish.  Specification 450,733, [Group VIII], is referred to.
Patent GB-791481-A (GB)
Title: Device for retaining strip material
IPC: B42F1/10
Filed: 1955-07-13
Abstract: 791,481. Clamps. POWER EQUIPMENT CO., Ltd., and HEATH, B. H. July 13, 1956 [July 13, 1955], No. 20334/55. Class 44 [Also in Group XV] A device for temporarily holding a strip or sheet 6 of thin material comprises a plurality of posts 3, 4 alternatively of resilient and non-resilient material supported on a base member 1 and arranged with their axes in substantially parallel relation, the peripheries of adjacent posts 3, 4 being either in contact or separated by a distance less than the thickness of sheet material to be inserted therebetween. As shown, the base 1 is formed with a raised platform 2 and the posts 3, 4 are arranged in two parallel rows A, B in staggered formation so that a post 3 in row A is always adjacent a post 4 of row B. The posts 3 are of a moulded plastic, substantially non-resilient, and are secured to the platform 2 by screws 7. The posts 4 are of resilient material such as india-rubber and are formed with an attaching grommet 8 to be passed through a hole in the platform 2. The posts are preferably shaped as shown and are in contact or almost so along the line C-C. The posts may be differently coloured to provide coding information.
Patent GB-1424446-A (GB)
Title: Offshore platform
IPC: E02B17/02
Filed: 1973-04-30
Abstract: 1424446 Offshore structures O MO 30 April 1973 [2 May 1972 5 Dec 1972] 20385/73 Heading E1H A concrete offshore platform comprises a monolithic substructure 1 including a plurality of rigidly interconnected vertical cells A, a superstructure 2 formed by at least one vertically elongated cell, each superstructure cell being an integral elongation of a respective substructure cell and being conical in shape over a lower portion thereof, and each superstructure cell also having an upper part normally exposed to wave action and having a cross-sectional area which is substantially less than that of the substructure cell.
Patent GB-245686-A (GB)
Title: Improvements in pencil sharpeners
IPC: B43L23/08
Filed: 1925-08-14
Abstract: 245,686. Bork, O. E. Aug. 14, 1925. Pencil sharpeners. - A pencil sharpener comprises a metal block 1 provided with two conical bores 2, 3, Figs. 1 and 3, or, in a modification with a single bore 2, Fig. 7, in which are arranged separate cutters 5, 10 for cutting the wood and lead respectively. The cutter 5 has the usual knife edge, but the cutter 10 consists of a polygonal plate, the edges of which are not sharpened but have a scraping action on the lead, the plate being rotatable on a fixing screw 13 so that any one of its edges may be turned into operative position. In the form shown in Figs. 1 and 3, the cutters project respectively into the bores 2, 3 and in that of Fig. 7, they project into the same bore 2 and act on the pencil in succession.
Patent GB-1047092-A (GB)
Title: Apparatus for regulating the flow of a liquid
Inventor: BREWER THOMAS HOWARD
IPC: G05D7/06
Filed: 1964-05-15
Abstract: 1,047,092. Automatic control. MILES ELECTRONICS Ltd. May 27, 1965 [May 15, 1964], No. 20436/64. Heading G3R. In a system for maintaining a constant level of liquid in a chamber, the liquid forms the dielectric of a capacitor in an AC bridge circuit controlling an on-off valve in a liquid conduit coupled to the chamber. To maintain a constant flow of liquid, e.g. fuel to a burner, a constant level is maintained in a supply tank with the aid of immersed electrodes forming a capacity with the liquid as dielectric. When the level rises so that the electrodes are immersed to a predetermined extent, the increase of capacity balances a high frequency A.C. bridge circuit to operate a thermionic or semi-conductor switch which closes a solenoid-operated valve in the tank supply conduit until the level falls sufficiently. To guard against failure of the valve, a second valve in the supply conduit closes when the level rises and increases the capacity to a value higher than normal. For conducting liquids the electrodes are insulated from the liquid. When the burner is utilized for central or domestic hot water heating, an expansion device responsive to ambient or water temperature is arranged to adjust the vertical position of the electrodes automatically to maintain the temperature constant. Alternatively a temperature responsive resistor may modify the output of the bridge circuit to achieve the same purpose.
Patent GB-1435744-A (GB)
Title: Ampholyte mixtures
IPC: C07F9/38
Filed: 1973-04-30
Abstract: 1435744 Ampholytic mixtures of organophosphorus compounds N GRUBHOFER 30 April 1973 [23 June 1972] 20478/73 Addition to 1402751 Heading C2P The invention comprises an ampholytic material which is a mixture of ampholytes which contain at least 4 primary, secondary, tertiary or quaternary amino groups and at least one phosphonic acid group or a mixture of phosphonic acid and sulphonic acid groups optionally also together with carboxylic acid groups, the ratio of basic to acidic groups being different in different ampholytes. The material is prepared by reacting an aqueous polyamine solution with an aqueous solution containing a phosphonic acid or salt thereof and optionally a sulphonic acid or salt thereof and optionally reacting the product with a carboxylic acid. The polyamine used may first be alkylated. The reaction may be carried out in the presence of a catalyst or antioxidant and the products may be recovered by treatment with a cation exchange resin.
Patent GB-1415734-A (GB)
Title: Bottle spout
IPC: B67D1/10
Filed: 1973-04-30
Abstract: 1415734 Valved closures; delivering measured quantities of liquid McCANNS ENG & MFG CO 30 April 1973 [15 Dec 1972] 20501/73 Headings B8T and B8N [Also in Divisions A4 and F2] A bottle spout 10 has a one-way valve formed by a flexible disc 42 normally sealing a flow tube 22 open at its lower end to the interior of a bottle 24 but the disc may be drawn off its seating 20 by means of suction produced from a dispensing apparatus 60 to which the bottle spout is applied when liquid, e.g. a beverage is to be drawn off into a glass 70. The lower portion 15 of a housing 12 has an annular flap valve 106 enabling air to be drawn into the bottle through vent holes 102 to avoid vacuum within the bottle as liquid flows out. The spout is secured by means of a bale and wire device 59 held by a seal 58. Dispensing apparatus.-The bottle spout is applied to a member 74 which is pivoted to engage an opening 72 in a chamber 68 which itself yields rearwardly to depress a plunger 84 of a microswitch 86. A solenoid 88 is thereby activated to open a line 90 from a vacuum pump 92. The solenoid 88 may be de-activated by a liquid level control device 98 which is also coupled to a recorder 100 showing the measure of liquid in the cavity 69 of the chamber 68. The dispensing apparatus is described in U.S.A. Specification 3,599,833.
Patent GB-386252-A (GB)
Title: Improvements in and relating to joints for electric cables
IPC: H01B7/26
Filed: 1932-07-20
Abstract: 386,252. Cable joints. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Eby, E. D. ; 100, Holmes Road, Pittsfield, Massachusetts, U.S.A.) July 20, 1932, No, 20527. Convention date, July 20, 1931. [Classes 36 and 38 (i),] An insulating joint for connecting together the lead sheaths of two cable ends or for connecting the adjacent ends of an interrupted sheathing on a single cable length comprises spaced and aligned metal tubes 3, 4, the outer ends of which are adapted to be secured respectively, by wiping, to the ends of the sheaths to be jointed. The inner ends of the tubes 3, 4 are connected by a sleeve 11 of insulating material which is moulded over the tubes under, pressure and preferably consists of a compound of cotton fibres and phenolic resin. To render oil-tight the joint between the tubes 3, 4 and the sleeve 11, oil-resisting gaskets 10 are disposed in circumferential grooves 5 in the tube ends and are maintained under compression by the moulded insulating sleeve 11. Grooves 7, also fitted with gaskets, may be formed in the end faces 8 of the tubes. The gaskets 10 are preferably formed from a mixture of 25 per cent asbestos fibre and 75 per cent of the alkyd resin known under the registered Trade Mark " Glyptal."
Patent GB-478598-A (GB)
Title: Weft tension regulating devices for needle looms
IPC: D03D47/00
Filed: 1936-07-25
Abstract: 478,598. Regulating the weft tension in looms. CRABTREE & SON, Ltd., D., and FELTON, W. July 25, 1936, No. 20627. [Class 142 (ii)] In needle looms for weaving carpets, the weft a passes between a member 2 on a bracket 4 and a member 3 on a spring-controlled lever 3a, next round a pulley 10 on a lever 8 pivoted at 8b to the bracket 4 and then to the needle. When this inserts the weft, its tension moves the lever to the position shown, a runner 7 on a stud thereon acting on an inclined bracket 3c on the lever 3a which is thereby raised to allow the weft to pass freely between the members 2, 3. When the needle returns, the lever 8 is pulled to the right by its spring 9 so that weft is continued to be drawn from its supply, whilst the lever 3a falls, and the weft is gripped between the members 2, 3 and thus held tensioned from these parts forwards. The members 2, 3 may have flat surfaces, or one may have a projection and the other be indented. The Provisional Specification describes an arrangement wherein a thick part of the'weft passing over a detector causes a spring controlled lever to be moved and actuate the detector to cause more freedom for the passage of the weft.
Patent GB-425666-A (GB)
Title: Improvements in the manufacture of paper or the like
IPC: D21H17/25
Filed: 1934-07-14
Abstract: 425,666. Paper containing hydrated cellulose. NELSON, H. H., 36, Rue des Vignes, Paris, and BECKEN, G., 7, Avenue de l'Union, Asnieres, Seine, both in France. July 14, 1934, No. 20696. Convention date, July 19, 1933. Addition to 410,310. [Class 96] To a freshly prepared, highly viscous solution of cellulose sulphocarbonate is added just sufficient coagulant to precipitate hydrated cellulose which is thixotropic, and to discharge electrically the aggregates of the colloid, the cellulosic substance, before or after precipitation being added to paper pulp to produce waterproof paper &c. As coagulant is used a solution of 1/5 gram-molecule each of sulphur dioxide and sodium sulphite per litre, or dilute acids, e.g. acetic, sulphurous, hypochlorous, hydrochloric or sulphuric acids or mixtures of these. The solubility of the colloid is destroyed on dehydration by drying, or by a dehydrating agent, e.g. an acid, alcohol, formol or tannin, strong, translucent webs repellant to water, oils, petroleum, &c. being obtained. The process may be combined with sizing by resin or paraffin wax, and pliability of the web may be obtained by adding soap, glycerine or glucose during or after manufacture, e.g. by incorporation in the thixotrope. A paper web obtained as described may be united with paper or cardboard to form waterproof board.
Patent GB-672181-A (GB)
Title: Stapler
Inventor: IMELMANN HENRY LOUIS
IPC: B25C5/02
Filed: 1950-08-22
Abstract: 672,181. Stapling. FASTENER CORPORATION. Aug. 22, 1950, No. 20726/50. Class 89 (iii). A pocket stapling device comprises a magazine 17 to which are pivoted an anvil plate 18 and a driver member 19 and on which is mounted a ferrule 11 having screwed thereto a barrel 12 enclosing the magazine, a separate cap being provided to cover the driver member 19, anvil plate 18 and outer end of the magazine. The magazine 17 comprises a long inner channel member 20 and a short outer channel member 21 with a space therebetween to receive the legs of the staples 29 and a further space at the front end to form a driver passage. A spring-pressed pusher 36 rides on the channel member 20 and is retained thereon by a rib 39 engaging a groove 40. The pusher is engaged behind shoulders 43 during loading. A plate 45 slidable by a knob 51 serves to move the staples to the rear to permit inward movement of the driver member 19 and anvil plate 18 without driving a staple when the cap is to be placed thereover. The driver member 19, magazine 17 and anvil plate 18 are spaced apart by a spring 87 on the plate 45 and by a separate spring 69.
Patent GB-1324753-A (GB)
Title: Apparatus for the heating or cooling of air
IPC: F24F5/00
Filed: 1971-04-19
Abstract: 1324753 Unit heaters or coolers RHEINISCH-WESTFALISCHES ELEKTRIZITATSWERK AG 19 April 1971 [4 Feb 1970] 20859/71 Heading F4V [Also in Division H1] A Peltier air heater/cooler comprises a disc of semi-conductor material mounted between two contact and heat exchanging discs arranged as a rotor on a shaft and energized by a unipolar generator mounted on the shaft. As shown, in Fig. 1, a motor 10 drives a shaft 9 on which is mounted a rotor comprising a semi-conductor disc 8 contacted by copper discs 6, 7. A casing 1 provides two ducts which direct forced air flows over heat exchange fins 12 mounted on shaft 9 in thermal contact with the discs 6, 7. A unipolar generator 11 is also driven by shaft 9 and provides the current supply for energizing the Peltier unit. When energized, one of the discs 6, 7 is heated and the other is cooled. Heat transfer to the airflow is enhanced by the rotation of the fins 12.
Patent GB-992269-A (GB)
Title: Improvements in and relating to rubber springs
Inventor: MOULTON ALEXANDER ERIC
IPC: F16F9/04
Filed: 1962-05-31
Abstract: 992,269. Inducing permanent set in rubber spring units. MOULTON DEVELOPMENTS Ltd. May 29, 1963 [May 31, 1962], No. 21026/62. Heading F2S. A method of achieving uniformity of the loaded height of a rubber spring unit intended resiliently to support a spring load on a supporting member the unit including a body of rubber arranged to be deflected between a pair of metallic elements either directly, or with an interposed hydraulic medium, comprises loading the unit by a dead load and, under this condition, adjusting one or other, or both of the metallic elements of the unit either by removing metal, e.g. by machining or shaving or by adding spacer members so that the overall loaded height of the unit produced may be standardized. As shown a unit 7, Fig. 4, employed in a hydro-elastic suspension system, Fig. 3, and of the kind described in Fig. 5 of Specification 942,829 is, prior to being fitted to the vehicle, subjected to an interior pressure e.g. of 200 p.s.i. and caused to work against a dead load. The upper part 26 of the housing is then shaved off until a standardized height " h " is achieved. Alternatively spacer members may be added to the lower and/or upper ends of the unit to achieve the same object. Additional stiffness in the pitch mode may be provided by additional springing means as specified in Specification 851,658. Specifications 763,432, 813,259, 848,996, 870,489 and 914,167 also are referred to.
Patent GB-1333339-A (GB)
Title: Therapeutic compositions
IPC: A61K31/55
Filed: 1972-05-05
Abstract: 1333339 Therapeutic compositions F HOFFMANN-LA ROCHE & CO AG 5 May 1972 [6 May 1971] 21037/72 Heading A5B Therapeutic compositions for the treatment of gastrointestinal disorders comprise medazepam (7-chloro-2,3-dihydro-1-methyl-5-phenyl -2H-1,4-benzodiazepine) or a pharmaceutically acceptable acid addition salt thereof and propantheline halide ((2-hydroxyethyl) diisopropyl methylammonium halide xanthene-9-carboxylate) and, if required, pharmaceutical adjuvants. Propantheline chloride, bromide or iodide may be used in the compositions and medazepam salts with hydrochloric, hydrobromic, sulphuric, nitric, phosphoric, acetic, benzoic, lactic, malic, benzenesulphonic, toluenesulphonic, maleic and solicylic acids are referred to. The compositions may be administered orally, pareuterally or rectally in the form of tablets, capsules and suppositories.
Patent GB-577028-A (GB)
Title: Improvements in or relating to the profiling of grinding wheels
IPC: B24B53/08
Filed: 1944-10-28
Abstract: 577,028. Dressing ribbed grinders. COVENTRY GAUGE & TOOL CO., Ltd., and JELLIS, M. Oct. 28, 1944, No. 21048. [Class 60] Apparatus for profiling ribbed grinding- wheels includes a stylus co-operating with a diamond tool. running over a rotatable and cylindrical cam which is formed with multistart grooves and has a flattened profile. As shown in Fig. 1, the cam 2 is formed with multistart helical grooves 3 of the same depth but greater pitch than the ribs 4 on a grinding- wheel 5. , The diamond 7 and stylus 6 are carried by a member 8 on a slide 9, while the cam is rotatably mounted in a slide 10. The slides 9, 10 are moved along guides 11, 12 respectively so that as the cam moves one pitch axially, the tool moves one pitch of the ribs 4, either by differential screw mechanism, not shown, or by face cams 15, 16 rotated either by hand wheel 20 or by power from the main shaft 26 through a shaft 25. A cam with a pitch n times that of the grinding-wheel as n starts, is rotated at <1>/nth the speed of the grinding-wheel, and is traversed axially at n times the speed of the tool 7. A cam 24 withdraws the tool from the grinding-wheel during the return movement. In one modification, the cam has movement of rotation only and the slide carrying the tool and stylus is moved, by rack-and-pinion mechanism attached to a differential gear on the driving shaft, one pitch of the ribs 4 while the cam rotates one pitch of the grooves 3. In a further modification, the cam, with a movement of rotation only, has the same pitch as the ribs 4 but less depth and a lever is provided to increase the depth component of the tool. In a still further modification used to grind annular ribs, the grinding-wheel is independently rotated and the cam, which is axially stationary, is rotated through gearing interconnected with the main slide and is formed with grooves of the same depth as, but with the pitch a multiple of the ribs on the grinding-wheel.
Patent GB-1495992-A (GB)
Title: Tractors
IPC: B60K17/10
Filed: 1975-01-13
Abstract: 1495992 Tractors C VAN DER LELY NV 13 Jan 1975 [15 Jan 1974] 21194/77 Divided out of 1495991 Heading B7H The subject-matter of this Specification is identical with that described in parent Specification and the claims are similar in scope.
Patent GB-662591-A (GB)
Title: Manufacture of new basic ethers
Filed: 1949-08-16
Abstract: Basic ethers are obtained by condensing metal derivatives of substances of the formula R.O.M, where R is aryl or aralkyl and M is an atom of monovalent metal, with substances of the formula <FORM:0662591/IV (b)/1> where Hal is chlorine or bromine and Y is an alkyl radical or the whole N(Y)2-group may be the residue of a secondary heterocyclic amine.  The condensation may be effected at an elevated temperature in water - immiscible solvents.  Detailed examples are given of the preparation of 1 - phenoxy - 2 - diethylamino - cyclohexane, 1 - thymoxy - 2 - diethylamino - cyclohexane, 1 - benzyloxy - 2 - diethylamino - cyclohexane, 1 - phenylcyclohexyloxy - 2 - diethylamino - cyclohexane and 1-benzhydryloxy-2-diethylamino-cyclohexane.