baber/WOPTO huggingface dataset:
Patent GB-954560-A (GB)
Title: Improvements relating to the control of temperature on multiple processes
Inventor: FIELDEN JOHN ERNEST
IPC: G05D23/24
Filed: 1961-02-07
Abstract: 954,560. Automatic temperature-control systems. FIELDEN ELECTRONICS Ltd. Jan. 22, 1962 [Feb. 7, 1961], No. 4501/61. Heading G3R. A number of heat zones 1, which may form part of a machine for processing synthentic yarns, are controlled at a uniform temperature by comparing the voltage at each connection point 7 with a reference voltage corresponding to the desired temperature and obtained from the slider 14 of a potential divider network 10, 11, 12, the resultant signal being used, through a controller 8, to vary the current through a heater 2. The thermallyresponsive resistances 3 are made of the same material, but their values of resistance at any temperature need not be the same or even known, since the voltages at the points 7 are adjusted to be the same at any convenient temperature by means of variable resistances 6, each voltage thereafter being determined by the temperature of its corresponding zone 1. Each controller 8 comprises terminals 21, 22 (Fig. 2) connected respectively to a rail 9 and the point 7, and an amplifier arrangement having a preamplifier stage including a transistor 20, a phase comparison stage including a transistor 23 and a power-amplifying stage including a transistor 25, the resultant output signal indicating the sign and magnitude of the difference between the voltages at terminals 21, 22 and being applied to the control winding 26 of a saturable reactor 27, whose main windings 28 are in series with the heater 2. A feedback winding 29 of the reactor 27 is supplied with D.C. by a rectifier bridge 30 responsive to the voltage drop across the heater 2. The reactor 27 may be replaced by a power transistor or a silicon-controlled rectifier, Fig. 3 (not shown). An impedancereducing amplifier may be inserted between members 9,14 and thermo-couples may be included in the zones 1 for temperature indication and adjustment purposes. Resistances 3 may be wire-wound or may be thermistors.
Patent GB-285410-A (GB)
Title: Improvements in or relating to variable electric condensers
IPC: H01G4/40
Filed: 1928-02-13
Abstract: 285,410. Compagnie GÚnÚrale de TÚlÚ- graphie et de TÚlÚphonie. Feb. 15, 1927, Convention date]. Condensers of the straight-line frequency type (having either shaped plates or shaped cam drives) are adapted for operation on a different ratio of maximum to minimum capacity (and therefore a different frequency range) from the normal ratio of the condenser by adding a fixed condenser I in series and a further fixed condenser 8 in parallel, as shown in Fig. 1, or in parallel only with the variable condenser 1. If C, c<1> are the maximum and minimum capacities, respectively, of the variable condenser, numerical values of the fixed capacities such that the straight-line relation shall be substantially retained is given by the equation (1 + C/r) = (1 + Y/C)<3>and the frequency ratio is 1/(1 + YC)<2>. The series condenser is of greater capacity, and the parallel condenser of less capacity, than the minimum of the variable condenser.
Patent GB-1494773-A (GB)
Title: Hydroxyphenylalkanoic acids and lactones thereof
IPC: C07C43/205
Filed: 1975-02-03
Abstract: 1494773 o-Hydroxyphenylalkanoic acids; lactones SANDOZ Ltd 3 Feb 1975 [5 Feb 1974 11 April 1974 (2) 6 Dec 1974 (2)] 4515/75 Heading C2C The invention comprises the compounds of formulae wherein R 1  is C 1-10  alkyl, C 3-8  cycloalkyl or Ph, and R 2  is H or C 1-4  alkyl (provided that when R 2  is H, then R 1  is not Me); a process for making (I) by lactonizing (II); and a process for making (II) by (a) splitting the corresponding phenolic ether, or (b) irradiating the phenoxyalkanoic acid m-(R 1 )C 6 H 4 OCH(R<SP>1</SP> 2 )CO 2 H (IV) where R<SP>1</SP> 2  is C 1-4  alkyl. Starting materials and intermediates also prepared are the ethyl ester of (IV) (R 1  = cyclohexyl, R 2 <SP>1</SP>= Me); m-MeOC 6 H 4 Ph; and those of formula 2,4-MeO(X)C 6 H 2 Z where X is Me 2 CHCH 2 , Ph, cyclohexyl or cylopentyl and Z is Ac or morpholinothiocarbonylmethyl. Therapeutic compositions having antiinflammatory, oedema-inhibiting, antipyretic, analgesic and blood platelet aggregation-inhibiting activity comprise compounds (I) or (II), including the disclaimed compound (I) but excluding the disclaimed compound (II).
Patent GB-627889-A (GB)
Title: Improvements in brassieres
IPC: A41C3/00
Filed: 1947-02-07
Abstract: 627,889. BrassiÞres. GLICK, J. Feb. 17, 1947, No. 4550. Convention date, July 10, 1946. [Class 141] In brassiÞres of the kind having a detachable one piece breast-supporting frame, means independent of the frame are provided centrally of the garment for closing the ends 17, 17<SP>1</SP> of the frame-receiving channels 13, 131 and for securing the frame against displacement from the pockets. The breast pockets 10, 101 are joined by the bridging member 20 of a frame having two curved breast supporting portions 18, 181. The corners 14, 14<SP>1</SP> of the breast pockets are connected by a strap 21 and by bands 24, the strap having a band 22 which is folded over the bridging member 20 and adjustably attached to one of the straps 24 by a hook 23 at its free end. In a modification, a strapless brassiÞre is described wherein the frame members extend around the upper portions of the breast pockets. Specification 622,157 is referred to.
Patent GB-111414-A (GB)
Title: Interrupter Mechanism for Electric Circuits.
Inventor: MUTTO ODILLO
IPC: H01H71/18
Filed: 1917-03-30
Abstract: 111,414. Mutto, O. March 30, 1917. Automatic circuit-breakers; mechanically-released switches.-The three-armed lever 5 has its arm I pivoted to a lug on the stem 3 of the movable contact 2, the arm III pivoted at 6 to a disk 7 mounted on a spindle 8, and the arm II adapted to be engaged, by means of a tooth 9, with a retaining lever 11, that is pivoted at 12 and controlled by a spring 14. When the lever 11 is lifted by a force applied at 13 the three-armed lever is released and, by means of a spring on the spindle 8 and the spring 4 on the stem 3, is carried outwards and downwards into the position shown in dotted lines, thereby opening the switch. The lever 11 may be lifted by mechanical, electro-magnetic, or other means. It is shown with thermal means comprising the expansion rod 15 connected to the circuit terminals. The switch is closed by turning the spindle 8. The contacts consist of a slit hollow cone 1 and a conical plug 2.
Patent GB-698856-A (GB)
Title: Improvements in cathode-ray tubes
IPC: H01J29/88
Filed: 1952-02-21
Abstract: 698,856. Enamels. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 21, 1952 [Feb. 24, 1951], No. 4655/52. Class 56. [Also in Group XL (a)] An enamel suitable for coating the iron cone of a cathode-ray tube preferably consists of 69 per cent SiO 2 , 2.2 per cent Al 2 O 3 , 18.6 per cent Na 2 O, 8.7 per cent CaO, 0.5 per cent ZnO, and 1 per cent CoO, all by weight. The enamel is refractory having a melting point of from 800 C. to 1100 C., and is resistant to corrosion by acids or alkalies. The enamel is rendered conductive by mixing with pulverulent graphite, from 5 to 10 per cent by weight, preferably 7 to 49 per cent. The enamel and graphite composition is applied by spraying or by immersion of the cone, and the cone is heated in a furnace to about 1100 C. for about 3 minutes.
Patent GB-197076-A (GB)
Title: An improved folding self-adjusting camp and deck chair
IPC: A47C4/40
Filed: 1922-02-17
Abstract: 197,076. Elliott, A. H. Feb. 17, 1922. Folding and rocking seats; adjustments.- In a rocking deck chair of the kind. comprising two frames A, E connected by pairs of links P, R, these links are made of chain, spring, cord, or other flexible material, or of rigid material hinged in the middle; or alternatively the upper pivoted links are rigid the lower links only being flexible. The points of connection I, K, L, M may be adjustable in order to vary the inclination and the swing of the seat, and freely sliding slipper members Z may be provided at the crossing points of the frames A, E. The transverse frame bars may be readily detachable, and pivoted shoes, Fig. 8, may be fitted to the lower ends of the frames to prevent the seat from sinking into soft ground.
Patent GB-977339-A (GB)
Title: Mole
IPC: E02B3/06
Filed: 1961-10-17
Abstract: 977,339. Moles. A. J. STAEMPFLI. Oct. 17, 1961 [Oct. 17, 1960], No. 4695/64. Divided out of 977,338. Heading E1H. A mole comprises a plurality of concrete elements 1 erected on the ground in a row, each element having two jambs 2 and 3 spaced apart at their lower ends and joined together at their upper ends, the upper ends of the elements being formed into an integral assembly by a capping 5, applied thereto and the elements 1 are provided with ridges 13 for breaking waves, a ridge 14 also forms a gangway. The jambs 3 are wider than the jambs 2 so as to form gaps 16 and wider gaps 17 to permit water to flow through the mole. Two rows of elements I may be formed with a single capping 5. A mole may be formed in front of an existing breakwater, formed in any way, and be formed with a pinnacle capping and the elements may be arranged in groups defining passages for the return of water.
Patent GB-215851-A (GB)
Title: Improvements in and in connexion with the manufacture of viscose silk
IPC: D01F13/02
Filed: 1923-02-20
Abstract: 215,851. Moriondi, C. Feb. 20, 1923. Cellulose xanthates, processes for making filaments from.-The sulphuric acid content of the precipitation bath used in the manufacture of viscose silk is maintained constant by electrolysis of the bath either in the precipitation vessel or in a separate storage tank through which and the precipitation vessel the bath is circulated. For the electrolysis the vessel which is preferably constituted of iron covered with ebonite as described in Specification 18269/08, [Class 70, India-rubber &c.] is provided with a separate compartment B in which is placed the cathode K and from which caustic soda or potash is withdrawn; the compartments are separated by a porous diaphragm D preferably of porous ebonite as described in Specification 200,577. [Class 70, India-rubber &c.]; the anode A is of thin nettings or strips of platinum or platinum-iridium, or of lead peroxide and constructed in a manner similar to that adopted for the plates of secondary batteries: the cathode is preferably a combination of iron gratings or wire nettings, and is placed near to the diaphragm. To prevent diffusion of the gas produced at the anode A into the precipitating bath C, the anode may be placed in a separate compartment C<1>, separated from the bath C by a diaphragm D<1> of a highly porous material, which may be provided with holes D<2> below the level of the anode. Hydrogen and oxygen may be collected from the cathode and anode compartments.
Patent GB-1485936-A (GB)
Title: Providing mineral-bearing beds with wells
IPC: E21B43/243
Filed: 1976-02-09
Abstract: 1485936 Wells &c. VSES NI INST ISPOLZOV GAZA V NARODNOM KHOZYAIST PODZEM KHRANENIA NEFTI NEFTERPRODUCTOV SZHIZHENNYKH GAZOV "VNIIPROMGAZ" 9 Feb 1976 4995/76 Heading E1F A method of providing a mineral-bearing bed with a well comprises drilling until the top of the bed is opened up, ceasing drilling determining the depth of the top and bottom of the bed, resuming drilling, stopping drilling before reaching ,the bottom of the bed, fitting a casing string, and drilling the pillar left between the bottom of the casing string and the bottom of the bed. Preferably the depth of the top of the bed is determined by gamma-ray logging, an instrument for gamma-ray logging being lowered into the drill string. The drilling of the pillar left between the bottom of the casing string and the bottom of the bed is effected using a gaseous agent or water.
Patent GB-360770-A (GB)
Title: Improvements in the mounting of valve timing gear in an internal combustion engine
IPC: F16B43/00
Filed: 1931-02-17
Abstract: 360,770. Valve gear. FORD MOTOR CO., Ltd., 88, Regent Street, London.- (Assignees of Sheldrick, L. S.; 2509, Hazelwood Avenue, Detroit, Michigan, U.S.A.) Feb. 17, 1931, No. 5035. Convention date, Feb. 17, 1930. [Class 7 (vi).] For securing a non-metallic valve-timing gear to a metallic shaft, an annular washer 17 of concave cross section is arranged between the hub of the gear wheel 15 and the securing- nut 16. A positioning-pin 14 on a flange 13 on the: cam shaft enters a corresponding hole in the wheel hub. An extension 20 of the cam shaft enters a socket 19 formed on the gear cover 18 and containing a spring 21. The non-metallic gear may consist of layers of cloth' impregnated with phenol condensation products. Substances such as that known by the registered Trade Mark Textolite, or Celeron, or Formica may be used.
Patent GB-108828-A (GB)
Title: Improvements in Steam Hydraulic Intensifiers.
Filed: 1917-04-12
Abstract: 108,828. Davy Bros., and Hand, T. W. April 12, 1917. Intensifiers.-In steam hydraulic intensifiers in which the steam cylinder 11 is mounted above and in axial alinement with the hydraulic cylinder and ram, the hydraulic cylinder 15 has a flange 16 bolted to the bottom of the cylinder 11 with an intervening plate 16a of insulating material, while the ram 19 has a cross-head 18 connected with the steam piston 17 by rods 20 passing through stuffing-boxes 21 and guides 22. In a modification, the hydraulic cylinder is similarly connected to the steam piston and the ram is fixed.
Patent GB-1147738-A (GB)
Title: A process for refining baddeleyite
Inventor: GREINACHER EKKEHARD
IPC: C01G25/02
Filed: 1968-02-01
Abstract: 1,147,738. Refining baddeleyite. TH. GOLDSCHMIDT A.G. 1 Feb., 1968 [17 March, 1967], No. 5197/68. Heading C1A. Baddeleyite (ZrO 2 ) is refined by leaching in a first stage with a solution comprising 120 g/l. HCl in the presence of 10-50 g/l. of sulphate and 1-30 g/l. of fluoride ions at above 80 C., then leaching below 60 C. with HCl of at least 200 g/l. concentration, separating the HCl liquor and washing and drying the product. In the preferred process the ore is first crushed to a particle diameter of less than 0À1 mm. In addition to the fluoride and sulphate ions, nitrate ions may be present in the first stage. In the first stage the ore is digested and copper sulphide oxidized, silicates are dissolved and some iron is precipitated. The remaining iron is removed in the second stage, as are titanium contaminants. Fluoride may be added as ammonium bifluoride or as HF and the sulphate as sulphuric acid or ammonium sulphate. The nitrate is preferably added as ammonium nitrate or as nitric acid. If required, acid from either stage may be recycled to the first stage, replenishing the acid as necessary.
Patent GB-736300-A (GB)
Title: Improvements in the preparation of semi-chemical pulp
IPC: D21C3/06
Filed: 1952-02-28
Abstract: Semi-chemical pulp is obtained by treating a cellulose-containing material at 100-152 DEG  C. with a bisulphite cooking liquor containing 1.3-3.0 per cent of sulphur dioxide and a base, the pH at the start of the reaction being 3.0 to 6.2, for a time sufficient to remove only a part of the lignin binding the cellulose fibres and to attack the cellulose and hemi-cellulose only slightly, whereafter the bundles of cellulose fibres are mechanically subdivided.  The base may be an oxide or hydroxide of calcium, magnesium, sodium or aluminium or ammonium hydroxide. The cooking liquor may be buffered by the addition of bases such as sodium, potassium, calcium, magnesium, aluminium or ammonium hydroxides, or organic amines, or buffers such as sodium carbonate or bicarbonate may be added.  The possible precipitation of calcium sulphite may be prevented by adding complex-forming agents such as metaphosphates, imino-diacetic acid, nitrilo-triacetic acid, ethylene diamine tetra-acetic acid, aliphatic amines, polyphosphates, or sodium pyrophosphate.  In an example, birch wood chips are charged to a rotary digester with cooking liquor at a pH of 4.3 containing 1.57 per cent of sulphur dioxide, 46 per cent of the sulphur dioxide being bound to lime and 27 per cent to ammonia, and containing also 50 mg./litre of sodium hexametaphosphate.  The temperature is raised to 105 DEG  C. in 1 hour, maintained at this temperature for 6 hours and kept for a further 4 hours at 115 DEG  C. and then for 4 hours at 125 DEG  C. The semi-chemical pulp is then defibrated in known manner in a disc mill.  Other examples are given.
Patent GB-458542-A (GB)
Title: Improvements in and relating to tube supporting means for steam generators
IPC: F22B37/20
Filed: 1936-02-21
Abstract: 458,542. Supporting steam boilers. GES. FUR LA MONT-KESSEL UND KRAFTWIRTSCHAFT (VORM. TECHNISCHE ZENTRALE DR. HERPEN GES.), 1b, Schadowstrasse, Berlin. Feb. 21, 1936, No. 5258. Convention date, Feb. 21, 1935. [Class 123 (ii)] Furnace wall tubes of steam boilers preferably of forced circulation type have hooklike supports attached on the side away from the furnace and engaging supporting rails of the boiler framework so as to permit of the tube being lifted off into the furnace space. A coal-dust fired boiler comprises front and rear wall tubes 6, 7 and convectively heated tubing 8. Hooks 9 are welded to the tubes which are placed closely together and protect the hooks and their supporting rails 10 from the furnace heat. Preferably only the uppermost hook of a tube rests on the corresponding rail, the lower hooks merely acting as guides. Hooks may be arranged transversely of horizontal tubes.
Patent GB-1512560-A (GB)
Title: Controllable pitch axial flow fans
IPC: F04D29/36
Filed: 1976-11-10
Abstract: 1512560 Bearings WOODS OF COLCHESTER Ltd 10 Nov 1976 [2 Dec 1975] 05311/77 Divided out of 1512559 Heading F2A [Also in Division F1] The subject-matter is the same as that of Specification 1,512,559 but the claims are directed to the "U" section annular housing 20 which retains lubricant in the bearing against centrifugal loading.
Patent GB-1075328-A (GB)
Title: Method and apparatus for quenching steel plate
IPC: C21D9/46
Filed: 1966-02-07
Abstract: A hot steel plate P is quenched supported between opposed sets of ribbed rollers 14, 20, e.g. rotatably supported in frames 12, 18, by supplying quenching fluid on to opposite surfaces of the plate while it is reciprocated, e.g. by a torque motor 56 controlled to drive a chain 32 meshing with sprockets 30 on the ends of lower rollers 14. Water or other quenching fluid may be sprayed on to the surfaces from spray bars 24, 26 with orifices creating a spray pattern of sufficient extent to completely cover the plate or only selected portions thereof.  The quantity of fluid may be sufficient to flood the plate.
Patent GB-1355025-A (GB)
Title: Cutting-head for internal screw-threads
IPC: B23G5/14
Filed: 1973-02-02
Abstract: 1355025 Cutting internal screw threads H W KRAUSS [trading as H WILLY KRAUSS] 2 Feb 1973 [4 Feb 1972] 5364/73 Heading B3N A cutting head 1 for forming an internal screw thread comprises a body 3 having a plurality of axially extending grooves with cutting elements 4 mounted for axial and radial movement therein, each said groove being provided at its bottom with a plurality of surfaces inclined to the axis of the body and each cutting element being provided with a plurality of similar surfaces, whereby upon axial movement of the cutting element in said grooves coaction of the cutting element surfaces and the groove surfaces will cause radial movement of the cutting elements. Preferably the surfaces are sawtooth-shape with the two sections of each tooth having different angular slopes sections 8 and 12 being approximately 45 degreees whilst sections 9 and 13 are approximately 5 degrees. The rear of each element has a projection 17 that engages in a groove 19 in a switch-over ring 20. The ring is movable by a switch lever 30 to position the elements in an operative position as shown in Fig. 2. A stop 35 controls the movement of the elements and thus allows for adjustment of the diameter of the threads to be produced. In operation, at the end of an operative stroke the body 3 of the head is stopped and the elements are pulled forward by a rotating workpiece so that the sawtooth shapes align and the elements are moved radially inward by springs 22 and annular spring 28.
Patent GB-1028723-A (GB)
Title: Improvements in or relating to hydroxypropyl cellulose
IPC: C08B1/08
Filed: 1964-02-07
Abstract: Adhesive coating compositions contain, as a binder, thermoplastic hydroxypropyl cellulose having M.S. (molar substitution) at least 2.0 (see Division C3).  In an example, hydroxypropyl cellulose and water are added to a slurry of corn dextrin in 2B alcohol anhydrous methanol, ethanol or propanol. The resulting adhesive is coated on to paper.  Paint-removing compositions contain, as a thickener, thermoplastic hydroxypropyl cellulose having M.S. (molar substitution) at least 2.0.  Specified formulations contain: (1) methylene chloride (91 mls.), toluene (3.8 mls.), paraffin (2.5 g.), hydroxypropyl cellulose (2.0 g.), methanol (15.0 mls.), tall oil soap (7.7 g.), di-triisopropanolamine (12.2 mls.), 40% ethyl alcohol solution of triethylammonium phosphate (0.8 mls.), water (1.9 mls.); and (2) methylene chloride (136 mls.), paraffin (3.0 g.), hydroxypropyl cellulose (2.0 g.), methanol (15 mls.).ALSO:Hydroxypropyl cellulose having M.S. at least 2.0 is made by mixing cellulose, alkali, water and an inert organic diluent other than liquid propylene oxide, the alkali cellulose ratio being 0.02-0.5/1, removing excess liquid from the resulting alkali cellulose to a press ratio of 2-5/1, and causing the alkali cellulose to react with propylene oxide or propylene chlorohydrin. The ingredients may be brought together in any order, and the alkali may be added in solid or liquid form.  Alkali cellulose formation may take place at, e.g. 0-35 DEG  C. for 5 minutes to 3 hours, while etherification may be effected by heating the alkali cellulose with propylene oxide vapour under pressure at 20-150 DEG  C. for 1/4 -48 hours.  The cellulosic starting material is preferably cotton linters or wood pulp.  Specified diluents are 3-5 carbon alcohols, and ketones such as acetone, methyl ethyl ketone, dioxane and tetrahydropuran. The alkali may be NaOM, KOM or an organic base, e.g. trimethyl benzyl ammonium hydroxide, dimethyl dibenzyl ammonium hydroxide and tetramethyl ammonium hydroxide. After completion of etherification, the alkali may be neutralized by nitric, hydrochloric, acetic or phosphoric acid. The product may be isolated by flashing off organic diluent in hot water, washing the solid and drying.  The etherification may also be carried out in presence of a second diluent, e.g. an ether or hydrocarbon.  The viscosity of the alkali-cellulose or hydroxypropyl cellulose may be reduced by known procedures.  The hydroxypropyl cellulose made by the process is thermoplastic, soluble in polar organic solvents, and at M.S. about 2, is soluble in water up to 60 DEG  C., and insoluble in water above 60 DEG  C. The product may be moulded by heat and pressure, with or without a plasticizer, into shaped articles, or used in adhesive and paint-remover compositions.