baber/WOPTO huggingface dataset:
Patent GB-1425485-A (GB)
Title: Power fabtor measuring cell arrangement
IPC: G01N33/28
Filed: 1973-04-30
Abstract: 1425485 Electro-physical measurement: testing transformer oils BECKMAN INSTRUMENTS Inc 30 April 1973 [8 May 1972] 20358/73 Headings G1N and G1U A portable arrangement for measuring the power factor of e.g. transformer oil, comprises an A.C. energized bridge 44 .. 47 having its output connected to a differential amplifier/meter circuit 55, 60. The test cell 12 comprises a centre electrode 17 and outer electrode 19 connected (in use) across the capacitive arm 47, and a guard electrode 21 connected to ground. The bridge is first balanced by capacitor 46 with capacitor 47 near maximum setting. The cell is then connected and the meter reading I noted. Capacitor 47 is then adjusted for minimum reading due to the resistive component. The ratio of these two currents viz the resistive current to the total original current represents the power factor. If e.g. the amplifier gain is adjusted so that the total current (when the cell is first connected to the balanced bridge) is always the same, the meter can be scaled on power factor, i.e. the reduced current when capacitor 47 is adjusted will indicate power factor directly. In an alternative arrangement Fig. 2 (not shown) a triaxial coupling cable is used and an operational amplifier is connected as a voltage follower to maintain the guard electrode at center electrode potential, whereby a low effective capacity between the center conductor and shield is obtained.
Patent GB-205886-A (GB)
Title: Improvements relating to jewel bearings for the rotary elements of electric meters
IPC: G01R1/10
Filed: 1922-07-25
Abstract: 205,886. Cheetham, G. A., Smethurst, W., and Metropolitan-Vickers Electrical Co., Ltd. July 25, 1922. Spring supports.-Jewel bearings for the rotary elements of electric meters, in which the jewel is capable of lateral movement relative to the jewel screw, comprise a partly bored jewel screw 3, Fig. 1, having a flexible rod or wire 5 secured in the base of the bore, the jewel cup 6 being carried at the free end of the rod or wire. The jewel cup 6 may be firmly secured to the free end of the flexible rod, or it may be loosely mounted for axial movement thereon, as shown in Fig. 2, in which case it is resiliently supported by a spring 8 and is formed with a groove 9 coacting with a lip 10 on the jewel screw, the lip being formed by hammering over the edge of the jewel screw. The flexible rod 5 may be bent to increase its effective length, or it may be replaced by a coil spring, preferably of conical shape, and having its lower end secured in the base of the bore in the jewel screw.
Patent GB-407710-A (GB)
Title: Improvements in or relating to the production or treatment of artificial filaments, threads, yarns, ribbons and the like
IPC: F16L41/02
Filed: 1932-07-19
Abstract: Artificial filaments, yarns, films, foils &c. containing cellulose acetate or other organic derivative of cellulose are subjected during or after their production to treatment with a medium containing a high concentration of a volatile solvent, a non-solvent less volatile than the solvent, and a relatively low concentration of a solvent less volatile than the non-solvent, and the filaments &c. so made or treated are subjected to a drying operation to remove by evaporation the medium carried by the materials.  As a modification, instead of applying the less volatile solvent by means of the medium containing the high concentration of volatile solvent, it may be derived from the spinning solution or it may be applied as a preliminary treatment. Under all these conditions products of good lustre are obtained while preserving the advantages attending the use of volatile solvents.  The method is applicable to wet spinning processes, and particularly to processes in which the filaments &c. are subjected to a stretching operation.  Such stretching may be carried out on a number of threads simultaneously arranged as a warp, and the stretching may be carried out in stages.  The materials may be passed through baths of the solvent-containing media, or the latter may be sprayed onto them.  Water is the non-solvent medium usually employed.  For examples, filaments are obtained by extruding an acetone solution of cellulose acetate into 40--55 per cent aqueous dioxane containing 5 per cent diacetone alcohol; cellulose acetate threads are stretched in a bath of 40--47 per cent aqueous dioxane containing 3--5 per cent methyl glycol monoacetate; an acetone solution of cellulose acetate containing 5 per cent diacetone alcohol is extruded into 40--45 per cent aqueous dioxane, in all cases the filaments or threads being subsequently dried.  Specifications 179,234, 277,089, 323,790, 336,217, [all in Class 2 (ii)], 340,324, 340,436, 340,437, 343,062, 366,070, 370,430, 371,343, 371,461, 387,686, 391,158, and 391,480 are referred to.
Patent GB-1007194-A (GB)
Title: Improvements in or relating to packing containers
IPC: B65D5/50
Filed: 1963-05-22
Abstract: 1,007,194. Cartons. M. BAUDET. May 22, 1963 [May 25, 1962], No. 20406/63. Heading B8P. A packing carton is made from a rectangular blank 1 having transverse fold lines 3-6, 3<SP>1</SP>-6<SP>1</SP> and has side-walls 16, 18 and 17, 19 part of each of which is of double thickness and of triangular cross-section 24, 25, a double bottom 22, 23, and a tray 15 having article receiving recesses 7-9. Cut-out portions 7a-9a, 7b-9b are formed between the fold lines 3, 4 and 3<SP>1</SP>, 4<SP>1</SP> respectively to locate articles in position in the recesses and the carton is formed by folding the blank upwardly about folds 3 and 3<SP>1</SP> and then downwardly about folds 4, 4<SP>1</SP>, 5, 5<SP>1</SP>, 6, 6<SP>1</SP>. The carton is secured by lugs 11, 12 engaging in housings 13, 14 or by gluing. Further tongues or lugs may be cut in the carton to engage housings in another carton to facilitate stacking. A second embodiment in which there are two rows 132, 132<SP>1</SP> of article receiving recesses separated by a partition 133 and in which only part of the bottom is of double thickness is shown in Fig. 3.
Patent GB-946518-A (GB)
Title: Gaging apparatus
IPC: G01B13/10
Filed: 1962-05-28
Abstract: 946,518. Fluid-operated gauges. SHEFFIELD CORPORATION. May 28,1962 [June 16,1961], No. 20471/62. Heading G1M. A back pressure type fluid gauge is fitted with an adjustable bleed valve B 1  which is controlled by a member 62 to adjust the gauge to compensate for wear or dirt. The back pressure, which operates gauge 18 or switch 22, is connected, at a time when a master G is being gauged, by a solenoid operated valve 80 to a pressure chamber 72. Change of pressure in chamber 72 causes movement of member 60, supported by diaphragms 54, 56, and hence movement of the head 86 of the bleed valve B 1 . The valve 80 is then closed and the member 60 locked in position by means of a plunger 90. The gauge is then ready to gauge a workpiece W. A similar bleed valve can be used on a null system in which the back pressure from the gauge head is compared with the back pressure due to a restriction.
Patent GB-772672-A (GB)
Title: Improvements in or relating to hydraulic control elements for machines
IPC: F15B13/043
Filed: 1954-07-13
Abstract: 772,672. Valves controlled by pilot valves. SCHMIDT, F. July 13, 1954 [Oct. 29, 1953; April 30, 1954], No. 20500/54. Class 135. An hydraulic device for controlling a machine tool includes a loose ball valve 3 which shuttles between a pair of rubber ring seats 4 and controls the interconnection of a pressure inlet 2, an exhaust 9, and a port 6 leading to the working cylinder. In the upper position of the valve, the working cylinder is vented, and in the lower position, pressure liquid is supplied to the cylinder. The seats 4 are separated by a cage 5. The valve is actuated by a loose piston 8 under the control of a valve 13, the latter connecting the lower face of the piston either to the pressure liquid inlet 2 or to an exhaust port 16. Valve 13 is actuated in both directions by a double electromagnet 18<SP>1</SP>. The exhaust and pressure liquid supply passages run transversely through the valve casing so that a number of such casings can be assembled into a unit.
Patent GB-280647-A (GB)
Title: Manufacture of a solubilised vat dye and process of dyeing therewith
IPC: C09B59/00
Filed: 1926-08-19
Abstract: 280,647. British Dyestuffs Corporation, Ltd., and Hailwood, A. J. Aug. 19, 1926. Dinaphthalimide.-The vat-dyestuff obtained according to example 1 of Specification 26690/13 by alkali fusion of naphthalimide is converted into a form which disperses readily in water and is easily vatted by treatment with oleum or a balogensulphonic acid at moderate temperatures and then pouring on to ice or water. According to examples the dyestuff is heated at 50‹ C. with oleum or chlorsulphonic acid, poured into ice and water, and the product separated as a paste. In a further example the product is used for dyeing cotton from a hydrosulphite vat at 50-60‹ C.
Patent GB-187356-A (GB)
Title: Improvements in regulation on long distance electric transmission lines
IPC: H02J3/04
Filed: 1921-08-04
Abstract: 187,356. Taylor, A. M. Aug. 4, 1921. Addition to 170,619. Polyphase systems; systems depending on the use of static transformers.-In a long distance transmission system employing superposed currents the number of cables in circuit is varied in accordance with the load. Three six-phase systems are supplied by a group SUT<3>, of transformers and a three-phase current is superposed on these systems by two transformers P<1>S<1>, P<2>S<2>. Upon a decrease of load the transformer P<1>S<1> is switched out and upon a further decrease the transformer P<2>S<2> is switched out. Upon further decreases of the load the independent transformers of the group SUT<3> are separately switched out. The charging current of the line is reduced during the switching on of the current by switching in the various transformers in the inverse order to that in which they are switched out with decreasing load.
Patent GB-845768-A (GB)
Title: Improvements in or relating to signal limiting circuits
IPC: H04N5/14
Filed: 1957-07-02
Abstract: 845,768. Amplitude limiting circuits. FERNSEH G.m.b.H. July 2, 1957 [July 4, 1956], No. 20862/57. Class 40(6). An amplitude limiter comprises a cathode follower connected through a direct current-path including a biased rectifier to one of the output terminals, a second rectifier being connected across the output terminals and arranged to become conductive when the first rectifier becomes non-conductive. In the circuit shown a positive going television signal is applied to the grid of the first valve via a pulse operated clamping circuit V2. The output from the cathode resistor is connected through a rectifier Gl to the output terminal, the rectifier being biased by a potentiometer R3 R2 so that it ceases to conduct when the signal amplitude exceeds a predetermined value. In order to prevent the rounding of the knee of the limiting characteristic due to the decreasing biasing current through R3 as the rectifier G1 becomes non-conductive a further diode G2 is connected between the output terminal and earth and biased by a low impedance source comprising the cathode impedance of a parallel connected double triode valve V3. The further diode becomes conductive as the first diode becomes non-conductive. In an alternative circuit (Fig. 3, not shown) the lower end of the cathode resistor R1 is connected to a negative supply and the lower end of the diode D2 is connected directly to earth. Adjustment of the limiting level may be effected by altering the voltage on the screen grid or control grid of valve V1.
Patent GB-947522-A (GB)
Title: Improvements in fuel-burning methods and apparatus
IPC: F22B21/34
Filed: 1960-06-15
Abstract: 947,522. Fluent fuel furnaces. BABCOCK & WILCOX CO. June 15, 1960 [June 18, 1959], No. 21017/60. Heading F4B. The greater part of the stoichimetric air amount for combustion is fed to a furnace through the burners, the remaining amount of air and a small excess being supplied to the early part or parts of the gas stream leaving the burners so that the temperature is not intensified. 107% of the air theoretically required for combustion is delivered to an air chamber 72 surrounding the lower part of a tubulous steam generator furnace, and about 17% of the theoretical air amount is passed through Venturi nozzles to common distributing chambers 74 feeding secondary air inlets arranged in the walls of the furnace. The remaining 90% of combustion air passes through registers 39 to turbulent flame gas, liquid or pulverulent fuel burners. The furnace chamber is divided by a tube wall 26A, 26B having a pressure equalizing opening 27, and the burners are arranged in two rows of two in the front and back walls on either side of the partition with a further two rows of two in the end walls. The secondary air inlets are above and offset from the burners, the air inlets nearer the partition having a greater area. The proportion of primary and secondary reduces the formation of nitrogen oxides.
Patent GB-914691-A (GB)
Title: An improved electro-pneumatic control system for plastic extrusion blow moulding equipment
Inventor: HARWOOD NORMAN FREDERICK
IPC: B29C49/78
Filed: 1959-06-18
Abstract: 914,691. Controlling blow-moulding apparatus. BAKER PERKINS GRANBULL Ltd. Sept. 24, 1959 [June 18, 1959], No. 21031/59. Class 87(2). An electro-pneumatic control system for a blow-moulding machine which has at least one pneumatically actuated head carrying a pair of mould jaws arranged to open and close around a spigot on the head, in conjunction with the feed from a single extruder, comprises a master timer 1 to initiate each moulding cycle which, sequentially, is energizing a relay 216 which controls a pneumatic. valve 103 actuating the mould closing (101), maintaining the jaws in a closed position by means of an opening timer, actuating a valve 105 by means of a switch 140 operated by the closing of the mould jaws to blow air into and expand the extrusion and to initiate a blow timer to control the duration of blowing; opening the mould jaws by turning out the opening timer, releasing the switch 140 to operate a valve 104 moving the.head (via 102) forward (for mould opening and ejection), the master timer then recycling. More than one head may be operated in conjunction with the extrusion feed and the usual safety devices are provided.
Patent GB-721978-A (GB)
Title: Improvements in low-reflecting glass
IPC: G02B1/10
Filed: 1952-08-21
Abstract: 721,978. Reducing surface reflections. RADIO CORPORATION OF AMERICA. Aug. 21, 1952 [Aug. 28, 1951], No. 21038/52. Drawings to Specification. Class 97 (1). A glass body is given a low surface reflection for a wavelength # by providing the surface with a silica skeleton t/4 thick and a superposed solid silica layer #/2 #hick. The skeleton may be first etched by a fluosilicic acid solution, supersaturated with silica to the extent of 0-3 millimols. per litre such as described in Specification 637,401, and then covered with a layer deposited from a solution supersaturated to the extent of 4-16 millimols. per litre such as described in Specification 626,810, [Group III]. Alternatively, the specimen may be given a prolonged immersion in a solution such as described in Specification 596,346, which causes, successively, the formation of the skeleton layer and the superposed silica layer if the ratio of area of surface to be treated and volume of treating solution is correctly chosen. Again, the skeleton may be formed by deposition, instead of etching, as described in U.S.A. Specification 2,220,861.
Patent GB-838266-A (GB)
Title: Railway vehicle structure
Inventor: WINTEMBERG ADELBERT CHRISLER
IPC: B61F5/36
Filed: 1958-07-01
Abstract: 838,266. Railway vehicle undercarriages. GENERAL STEEL CASTINGS CORPORATION. July 1, 1958, No. 21086/58. Class 103(6) To accommodate relative lateral motion between a railway vehicle body and a three-axle truck, the underframe U, Fig. 2, is supported on the truck by a pair of non- yielding cylindrical elements 48 registering with load supports 31 on a transom 27 and on a laterally-movable bolster 36 having a cylindrical centre plate 37 which is in pivotal and load-supporting engagement with a truck centre plate 30 located on the longitudinal centre line of the truck at the intersection of a transom 26 and a longitudinal member 28. The bolster 36 has at its ends ears 38, Fig. 3, from which at 39 are pivotally suspended vertical swing hangars 40, which are in turn connected at their lower ends as at 41 to brackets 42 on sills 33 on the underframe so as to support the underframe from the bolster for lateral movement relative thereto. Co-operating friction plates 43, 44 on adjacent walls of the bolster 36 and cross-ties 34, which connect the sills at intervals, restrict the bolster to movements transversely of the underframe in order to transmit longitudinal forces from the truck to the underframe and stops 45 are secured to the sills in alignment with ears 38 to restrain excessive lateral movements of the bolster relative to the underframe. In a modification, the hangars are inclined to the vertical and a convex portion on the bolster engages a concave portion on the truck frame to allow the bolster to tilt during lateral displacement without separating the bearing surfaces from the load supports. In another modification, the element co-operating with load supports 31 comprises a plunger 54,. Fig. 6, within a housing 55 on the underframe with a spherical lower end surface 57 which engages a mating spherical surface on a bearing shoe 58 which in turn slidably rests on support 31. A coil spring 59 in housing 55 urges the plunger so that shoes 58 are in constant sliding engagement with pad 31. In a further modification, tilting of the bolster is accommodated by a rubber pad between centre plates 30, 37.
Patent GB-663825-A (GB)
Title: Constant starting voltage discharge lamps
IPC: H01J61/54
Filed: 1947-08-01
Abstract: To obviate an increase in starting voltage with an increase in humidity, tubular gas discharge lamps are provided externally with a permanent, transparent, moisture-dispersing coating of a silicone by inserting the lamp for 10-15 minutes at room temperature in a container of high humidity, preferably 50 per cent, and introducing into the cabinet air charged with a halogenated silane vapour, preferably diphenyl dichlor-silane or methyl chloro-silanes.
Patent GB-1532922-A (GB)
Title: Method of reducing torque and drag in a wellbore
IPC: E21B21/00
Filed: 1977-05-19
Abstract: 1532922 Drilling fluids A A DODD 19 May 1977 [29 April 1977] 21099/77 Heading E1F In a method of drilling a wellbore, torque and drag is reduced by adding to the drilling fluid substantially solid, spherical glass beads having a particle size of 44-88 microns and a hardness of 5.5 on the Moh's scale.
Patent GB-1000534-A (GB)
Title: Production of linear unsaturated polyesters
IPC: C08G63/58
Filed: 1962-06-01
Abstract: Unsaturated polyesters are made by reacting (1) an anhydride of an alpha-beta-unsaturated dicarboxylic acid (e.g. maleic or citraconic anhydride) with (2)  thylene-, 1 : 2-propylene-, 1 : 2-butylene- or 2 : 3-butylene oxide, in the presence of (3) 0.05-0.1 mol. per mol. of anhydride of a monohydric and/or dihydric alcohol.  Part of the unsaturated anhydride may be replaced by an saturated dicarboxylic anhydride, e.g. phthalic, tetrahydrophthalic or tetrachlorophthalic anhydride.  The reaction mixture may also include a substance capable of forming a Diels-Alder adduct with the anhydride, e.g. cyclopentadiene, dicyclopentadiene, hexachlorocyclopentadiene, 9 : 10-diethylanthracene or terpenes such as colophony. Specified alcohols for reactant (3) are ethanol, propanol, butanol, hexanol, octanol, 2-chloroethanol and monoethanolamine; ethylene-, 1 : 2- or 1 : 3-propylene-, 1 : 3-butylene-, diethylene-, triethylene-, dipropylene- or tripoppylene-glycols; also diethanolamine and the reaction product of 1 mol. of diphenylol propane and 2 mols. of ethylene oxide.  Suitable polyesterification catalysts are oxides and salts (e.g. carbonates or stearates of magnesium, zinc and lead) and ion-exchangers containing zinc and cation.  The unsaturated polyesters may be copolymerized in normal manner with monomers such as styrene, chlorostyrenes, diallyl phthalate, triallyl cyanurate and vinyl carbazole using a mixture of M.5.K. peroxide and cobalt naphthenate as catalyst.  Fillers, e.g. glass fibres or asbestos may be added prior to hardening.
Patent GB-614645-A (GB)
Title: Improvements in or relating to power plant transmission gearing
IPC: F16H37/00
Filed: 1946-07-15
Abstract: 614,645. Hydraulic couplings. BROWN, T. W. F., YATES, H. G., and PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. July 15, 1946, No. 21158. [Class 69 (ii)] [Also in Groups XXVI and XXXIII] In a marine power plant in which power from a turbine is conveyed to a primary toothedpinion by way of ahead and reverse drive hydraulic couplings, the driving elements of which are connected together by an inner shaft passing through the pinion, one or more additional turbines are connected to the inner shaft by hydraulic couplings. A gas turbine e, Fig. 1, drives a pinion b through an inner shaft a which carries on each side of the pinion the driving element of a hydraulic coupling. One coupling c is used for ahead driving and one coupling d for astern driving. A further turbine f is coupled through the hydraulic coupling g to the shaft a. In a modification, a further additional turbine is connected through a further additional hydraulic coupling to the shaft a. A second further turbine may be connected by a second further hydraulic coupling to a further pinion connected to the transmission system.
Patent GB-614646-A (GB)
Title: Improvements in machines for moulding or sticking on the soles of footwear
IPC: A43D25/06
Filed: 1946-07-15
Abstract: 614,646. Sole attaching and laying presses. COPPOLA, A. July 15, 1946, No. 21160. Convention date, Dec. 15, 1941. [Class 17 (i)] A cylinder 11 of a machine for adhesively securing a shoe sole to a lasted upper under pressure of a fluid transmitted through a diaphragm is provided in the frame of the machine and the piston is connected to hand-operated means for the purpose of generating such pressure. In the form shown, the frame is made of swan-neck shape with a cylinder 11 in the lower portion in communication, through a pipe 12, with a compartment 5, the top surface of which is formed by a diaphragm 6 clamped in position by an open cover 7. The shoe upper on the last is held against the sole on the diaphragm 6 by a screwoperated pad 2, a cradle shaped member 9 holding the shoe at the heel. The diaphragm 6 at the heelward end of the shoe has a sloping face 8 to press against the heel breast. Rotation of a handwheel 15 moves a piston 13 longitudinally without rotation to increase or decrease the fluid pressure in the compartment 5.
Patent GB-585761-A (GB)
Title: Improvements in interlocking devices for ensuring the complete stroke of an operating member
IPC: B23K11/36
Filed: 1944-10-30
Abstract: 585,761. Full -stroke mechanism. LEEDE, E. F. W. Oct. 30, 1944, No. 21180. [Class 80 (iii)] [Also in Group XXII] For ensuring the complete stroke of an operating member, such as a treadle or hand-lever, the member is secured to a block 17 slidable in a long movable link or slotted bar 14 The block 17 carries a spring-controlled pawl 18 which co-operates with a ratchet 16 on the link 14 so that return movement of the block 17 is prevented unless a full working stroke is made. At the end of the working stroke, a panel 20, carried by the block 17 and having an aperture 21 for the passage of the pawl 18, strikes the lower end of the slot 15 or an adjustable bar 22 to lift the pawl 18 away from the ratchet 16. At the end of the return stroke the panel 20 engages the upper end of the slot 15 and resets the pawl. The ratchet and pawl lock may be replaced by other means, such as an eccentric roller or expanding wedges. The invention may be applied to the actuator for a tool or machine, such as a spot welder.