baber/WOPTO huggingface dataset:
Patent GB-1020640-A (GB)
Title: Means for controlling the tension in elongated flexible material
Inventor: BONIKOWSKI ZBIGNIEW
IPC: B65H23/04
Filed: 1963-12-17
Abstract: 1,020,640. Feeding webs. BRITISH INSULATED CALLENDERS CABLES Ltd. Dec. 17, 1964 [Dec. 17, 1963], No. 49757/63. Heading B6B. [Also in Division G3] The tension in an elongated flexible member is controlled by a reversible transmission system comprising forward and reverse transmissions each including an electrically controlled coupling, responsive to electrical signals from a tension sensing device to control both the direction and torque of a driving means driven by the reversible transmission system. As shown a motor 6 drives a take-up spool 5 in a forward direction via a belt 8, induction coupling 13 and a belt 22 or in a reverse direction through a belt 9, a reversing reduction gear 12, an induction coupling 17 and a belt 23. The belts have serrated driving surfaces and the forward speed is at three times the reverse speed. A loop of the material being wound is formed between pulleys 2, 3 and a jockey pulley 4 restrained to move in an arcuate path by an arm 25 loaded by a spring 29 adjusted by a screw 30. The arm 25 positions a wiper of a rheostat coupled to a tachogenerator both of which are contained within an enclosure 42. The rheostat 33, Fig. 5, not shown, through a three-stage transistorized amplifier, having two output channels, or two amplifiers, selectively controls the energization of couplings 13, 17 so as to tend to maintain the tension in the material constant. Rate feedback is provided by the tachogenerator through a resistancecapacity network. Smooth transition from forward to reverse drive is provided by the amplifier being designed so that the power supply to coupling 13 is not completely cut off before power supply to coupling 17 commences.
Patent GB-1133773-A (GB)
Title: Installation for the automatic analysis of substances in the dissolved state, and process of operating the automatic analyser
IPC: G01N31/16
Filed: 1965-11-24
Abstract: 1,133,773. Automatic titrating. MAGYAR OPTIKAI MUVEK. 24 Nov., 1965 [24 Nov., 1964], No. 50028/65. Heading B1X. The concentration of a dissolved substance is determined by mixing a determined volume of the solution and a suitable reagent or solvent, and adding the mixture to a reagent, solvent or diluent until a selected physical property of the mixture so obtained reaches a pre-determined value, the said concentration being determined by an automatic method, known per se, from the quantity of mixture so added, and the data obtained being signalled, written, summed or printed. The predetermined value is set or regulated by measuring the same physical property of a standard solution in the same manner, and, if desired, the process is repeated according to a timepattern control. As shown, an automatic sampling pipette 2 feeds a definite quantity of a sample from a container 1, or of standard solution from a container 20, to a chamber 3 where reagents and/or solvents are added by a pipette system 5, to produce a solution which is filled into an automatic burette 6. The automatic pipette system 5 supplies a further reagent and/or solvent to the measuring chamber 7, which is provided with a detector 8, which may be the electrode circuit of an automatic titrating apparatus, or a flame photometer device. The burette 6 injects solution into the chamber 7 until stopped by the automatic titration apparatus when the end-point is reached, and a signal proportional to the volume of solution so delivered fed to signal converting, response, recording and calculating units 9, 10, 11, 12 and a printing indicating and reporting mechanism 13, e.g. an electrical typewriting or calculating machine. A control device 15 programmes the operations. Examples describe (1) the titration of a solution containing iron ions, which is mixed with water and sulphuric acid, manganous sulphate and phosphoric acid solutions in the chamber 3 and titrated into potassium permanganate solution in the chamber 7, the end-point being determined by an electrode system; (2) the testing of blood serum, which is mixed with distilled water in the chamber 3 and supplied by the burette 6 into distilled water in the chamber 7, 'the contents of which are fed to the sprayer of a flame photometer until a predetermined emission intensity is reached.
Patent GB-1248849-A (GB)
Title: Method of sealing polyethylene films
IPC: B29C65/02
Filed: 1969-10-13
Abstract: 1,248,849. Seaming non-metallic sheet material. MITSUBISHI PETROCHEMICAL CO. Ltd. 13 Oct., 1969 [12 Oct., 1968; 7 Nov., 1968], No. 50113/69. Heading B5K. Polyethylene films 1 prepared by an extrusion and inflation process in which the extruded tubing is inflated to a blow ratio greater than 2, are slit and sealed by feeding superposed films 1 to a slitting and sealing means 3 under a tension, in the direction of sealing, above the stress due to heating and tending to produce shrinkage of the film, and below that which would cause stretching of the film by 3%, and slitting and sealing the films 1 whilst maintaining the tension. By " blow ratio greater than 2 " is meant that the diameter of the tubular film after inflation is larger than twice the diameter of the annular extrusion orifice used in the moulding of the film. The tubular polyethylene film 1 is supplied in a flat state from a roll and passes over a dancer roller 2 to a slitting and sealing blade 3. The slit film passes around cooling rollers 4 and is fed to a take-up roller 5. The surplus margin 6 of the film is taken-up by a roller 7. In one embodiment, Fig. 2, the blade 3 has a knife edge 8 at the front face thereof, is supported between spaced heating means 9, 10, and produces a rounded seam, Fig. 8. In another embodiment, Fig. 4, the films 1 are slit and sealed by a blade 11 and, thereafter, the sealed portions are further heated by heaters 12 so that the sealed portion increases in thickness and is annealed. In a further embodiment, Fig. 6, the films 1 are first slit by a blade 13, then welded by a sealer 14 and heated further by heaters 15. To increase the strength of the seal, whilst the welded film margins are at least partially in a molten state, these margins are compressed between rollers 16, 17, Figs. 1 and 11, to provide a plurality of spaced nodes 19. The roller 16 comprises a cylinder 16 1  having axial projections 16 2 .
Patent GB-1082347-A (GB)
Title: Temperature-compensated fluid conductivity meters
Inventor: PUCZKO MIKOTAJ
IPC: G01N27/04
Filed: 1964-02-09
Abstract: 1,082,347. Measuring conductivity of electrolyte. INSTYTUT ELEKTROTECHNIKI. Feb.9, 1964 [April 11, 1963], No.50139/63. Headings G1N and G1U. In a salinometer, a conductivity cell sensing element C zl  (Fig. 2) modifies the balance of a bridge circuit, the arms of which comprise respectively R 7 , R 8 , R 1  + R 3 , R 2  + R 4  and a thermistor R T  which is located in an electrode of the cell compensates for variation in temperature of the electrolyte the conductivity of which is to be measured. The bridge is energized by a stabilized A.C. voltage U 2  and a moving coil meter M indicates conductivity. Alternatively, in Fig.1 (not shown), the bridge arms R 7  and R 8  of the Fig. 2 arrangement are constituted by the two coils of a ratio meter (LM) which indicates conductivity and the bridge is connected to a D.C. supply.
Patent GB-1152269-A (GB)
Title: Improvements in and relating to a method for Reinforcing the Image on a Lithographic Printing Plate
IPC: C09D161/06
Filed: 1966-11-09
Abstract: 1,152,269. Lacquer emulsions for lithographic printing plates. KALLE A. G. Nov. 9, 1966 [Nov. 9, 1965], No. 50142/66. Addition to 967, 598. Heading G2M. [Also in Division C3] Images produced on photo-lithographic plates are reinforced and made more oleophilic by treatment with an emulsion lacquer in which the dispersing phase is water and water-soluble thickener and optionally a bactericide or a surfactant, and the dispersed phase is a water-immiscible organic solvent and a phenol-formaldehyde resole or novolak resin, the phenol containing a substituent with at least 2 carbon atoms, and optionally a dye or an ultraviolet absorber. Specified phenols used in the resins are; t-butylterpose-, iso-octyl-, p-phenyl-, cyclohexyl- and benzyl-phenol, eugenol, iso-eugenol, thymol or carvacrol. The organic phase may also contain a phenol-formaldehyde novolak or silicone resin.
Patent GB-1183769-A (GB)
Title: Improvements in and relating to the Treatment of Alloys.
Inventor: FLETCHER HARRY
IPC: C21D10/00
Filed: 1967-11-03
Abstract: 1,183,769. Heat-treatment process. INTERNATIONAL RESEARCH & DEVELOPMENT CO. Ltd. Dec. 9, 1968 [Nov. 3, 1967], No. 50171/67. Headings C7A and C7N. In a method of improving its mechanical properties an alloy is heated to its solution treatment temperature and then cooled, at such a rate that a second phase precipitates, to a temperature at which the structure produced is stable; the alloy is then subjected to a shock wave, after which it is reheated to a temperature intermediate between the solution treatment temperature and the temperature to which it was cooled therefrom, held at that temperature, and cooled. The shock wave is preferably applied by detonation of a high explosive in control with the alloy; the explosive may be in the form of a layer conforming substantially to the surface of the alloy. As exemplified, the process is applied to a creep resistant steel of the 1% Cr-Mo-V type, which was solution treated at 960‹ C. for 15¢ hours, cooled at 100‹ C. / hr. to 15‹ C., subjected to a shock wave, reheated to 700‹ C., held for five hours and cooled in air.
Patent GB-1484339-A (GB)
Title: Development of diazotype materials
IPC: G03C5/18
Filed: 1974-11-20
Abstract: 1484339 Fixing diazotype materials OZALID GROUP HOLDINGS Ltd and ARA BEEBER 30 Oct 1975 [20 Nov 1974] 50202/74 Heading G2C An acid solution is applied to a two component diazotype material after is has been developed by a non-volatile alkaline, inorganic developer liquid so that the material emerges in an acid condition thereby avoiding the tendency for decolouration of the background owing to the presence of residual alkali in the material. The exposed material is advanced at a rate of 1 to 20 metres per minute and the alkali at a pH of at least 10 and a coating weight of between 2 and 8 grams per square metre, applied thereto, e.g. from a roller partly immersed in the developer liquid. The material is then heated, e.g. by passing it around a heated cylinder, to dry it. Finally the acid solution is applied, e.g. by a roller partly immersed in the solution, at a coating weight of between 2 and 8 grams per square metre. The acid may be phosphoric, sulphuric, hydrochloric, citric, lactic, oxalic, tartaric, polyacrylic and benzene sulphonic acids. Preferably the developer liquid is an aqueous solution of a carbonate bicarbonate, hydroxide or phosphate of an alkali metal or an alkaline earth metal. The acid bath may also contain polyethylene glycol which serves both as a humectant and to increase the viscosity of the liquid in the bath. Zirgel K may be employed in the alkaline developer bath as a mordant. Diethylene glycol may be incorporated in the light-sensitive coating on the diazotype material.
Patent GB-1439218-A (GB)
Title: Method of treating a quartz article
IPC: C03B29/14
Filed: 1973-10-30
Abstract: 1439218 Heat treating elongate quartz articles PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 Oct 1973 [2 Nov 1972] 50317/73 Heading C1M A method of eliminating discontinuities and/or impurities in an elongate quartz article by means of a thermal treatment comprises moving the article through an electrical heating coil which is part of a plasma burner in a direction which is substantially parallel to the longitudinal axis of the article, a gas required for the plasma generation being brought into contact with the article at least at the part of the article adjacent the coil, and the gas being converted to plasma under the influence of the coil so as to heat the article locally above its softening point. Discontinuities are defined as grooves and other irregularities in the surface of the quartz as well as gas inclusions. The plasma burner is understood to mean a discharge device in which a plasma having a high gas temperature is generated in a gas by means of a high frequency alternating field. The gas, e.g. argon may be passed along the outer side of the quartz article, and the coil is then connected to a voltage source of high frequency and a plasma discharge is generated in the gas. The article may be a tube and then the gas may be passed through the tube. The method finds particular application to exhaust tubes of quartz provided with external grooves. In a further embodiment the article is a tube and the end part of the tube which passes last through the electrical coil is later removed and discarded. The method may be carried out on a quartz tube which is being drawn during a quartz tube drawing process, the gas for the plasma discharge being applied to the interior of the quartz tube during the quartz tube drawing process. In this embodiment the plasma burner is alternately adjusted to two different levels of heat output, the period during which the plasma burner is working at the lower level of heat output being shorter than the period during which the plasma burner is working at the higher level of heat output.
Patent GB-1173319-A (GB)
Title: Apparatus and process for the production of concrete pre-cast units
Inventor: HALLER HANS
IPC: B28B7/42
Filed: 1966-11-10
Abstract: 1,173,319. Moulding concrete. H. HALLER and E. WENDL. 10 Nov., 1966 [12 Nov., 1965], No. 50420/66. Heading B5A. [Also in Division E1] Precast reinforced concrete units e.g. floor joists (see Division E1) are moulded and steam cured on a building site in an assembly of moulds defining a steam-tight enclosure which is heated from a mobile steam plant. The moulds 2, 2<SP>1</SP>, 2<SP>11</SP> are provided with insulation (35) packed walls (34) (Figs. 3a and 3b, not shown) and stacked in a vertical arrangement with the upper or lower edges (16) of the walls projecting into heat-insulating material (15) e.g. sand or foam insulant, in a channel-section edge of the wall of a respective lower or upper mould, and the topmost mould 2<SP>11</SP> is surmounted by a steamtight lid 9. Each mould comprises a plurality of cavities for forming the joists 7 which may be defined between fixed upwardly tapering partitions 19 or removable downwardly tapered partitions 18 whereby ejection of the moulded joist is facilitated. The removable partitions 18 are aligned by clearances (12) therein, Figs. la and lb (not shown), into which locate members (11) joined outside the enclosure by a vertical cross member (13). Steam for heating, and air or water for cooling, is circulated throughout the assembly via pipes 20 connected to plates (28) at either end of the mould assembly and supplied from a portable steam generator and distributer. The moulds 2 may be assembled end to end to produce joists of multiples of a unit length. Each mould 2, which may comprise screwed together elements, is conveyed to the casting site by a crane or an overhead gantry crane (8) on rails (27) which also serves to remove the cast joists and the empty moulds so that the placing of reinforcement and concrete can recommence in the bottom mould 2. The moulds are provided with a curvature in the longitudinal joist direction, which may be variable, and the joist section may be varied by using different linings whereby the sag of the joists under full installed load is accounted for. Mould temperatures are measured at a remote location by tele-thermometers installed in the moulds.
Patent GB-1533867-A (GB)
Title: Transmission line driver circuit
IPC: H03K5/00
Filed: 1975-12-10
Abstract: 1533867 Telegraphy SPERRY RAND CORP 10 Dec 1975 [13 Dec 1974] 50671/75 Heading H4P In sending digital data through a transmission line 10 transformer coupled to the drive circuit, drift of D.C. level is avoided by the use of two transformers 18, 20 with secondaries 24, 28 in opposite sense connected via opposite diodes 30, 32 across a load impedance 16 feeding and preferably matching the line; one or other of two semiconductor switches, e.g. transistors 34, 36, pulses its respective transformer primary according to the direction of level change of the digital imput data, the output pulses being shaped by respective waveshaping networks. In a code signal (Fig. 2, not shown) at input 100, "1" bits are coded by a change in either direction between two levels, "0" bits by no change; an upward change triggers monostable circuit 106 which reverts in less than the bit time, providing at output 74 of inverter 82 a downward pulse passed by R.C. circuit 62 to the emitter of transistor 36 and thence to transformer 20: a downward input is inverted by 86, the outgoing upward pulse similarly driving monostable circuit 92, inverter 78, transistor 34 and transformer 18 and supplying an opposite pulse to the line 10. In each case a high resistance R.C. circuit 44 or 64 maintains for a long time or until an opposite pulse occurs a small output current in the same direction as the last output pulse, ensuring that the secondary signal with superimposed noise received at the last end of the line does not cross the mean level, which might falsely operate a detector.
Patent GB-1473827-A (GB)
Title: Flush closet casings
IPC: A47K11/04
Filed: 1974-07-30
Abstract: 1473827 Closet casing J F HARRISON 30 July 1974 [3 May 1973] 50687/72 Heading E1C A casing enclosing the pan of a flushed closet comprises front 10b and side 10a walls, an apertured top 14 forming a splash guard located over the pan and hingedly supporting a seat 18 and a lid 20 pivoted to the casing. A part 10c for enclosing a close-coupled cistern may be provided with a magnetic catch 22 co-operable with the lid 20.
Patent GB-1078070-A (GB)
Title: Changeover device for two radio receivers
IPC: H03K17/74
Filed: 1964-12-16
Abstract: 1,078,070. Radio receiving circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Dec. 16, 1964 [Dec. 20, 1963], No. 51163/64. Heading H3W. In an arrangement in which two radio receivers are connected to a common load, wherein the receiver outputs and the input to the load are either balanced to ground or are converted thereto by means of transformers, the power delivered to the load is maintained constant and equal to the total output from one receiver: in normal operation one half the output of each receiver is connected to the load, and in the case of abnormal operation the full output of one receiver is connected thereto. The two receiver outputs are connected to terminals 1, 1<SP>11</SP>, 1<SP>1</SP> and 2, 2<SP>11</SP>, 21 respectively, in which terminals 1<SP>11</SP> 2<SP>11</SP> are earthed. The load is connected to terminals 3, 3<SP>11</SP>, 3<SP>1</SP> in which terminal 3<SP>11</SP> is earthed. In normal operation the unbalanced half outputs across terminals 1, 1<SP>11</SP> and 2<SP>11</SP>, 2 respectively are fed to terminals 3, 3<SP>11</SP> and 3<SP>11</SP>, 3<SP>1</SP> respectively, while those at terminals 1<SP>11</SP>, 1<SP>1</SP> and 2, 2<SP>11</SP> respectively are absorbed in resistors R 2 , R<SP>1</SP> 1 . On reversal of ganged switches S 1 , S<SP>1</SP> 1  however, the half output from terminals 1, 1<SP>11</SP> is absorbed in resistor R 1  and it is the second half output from terminals 2, 2<SP>11</SP> which is fed to terminals 3, 3<SP>11</SP>. Similarly on reversal of ganged switches S 2 , S<SP>1</SP> 2  instead, the output is taken entirely from terminals 1, 1<SP>11</SP>, 1<SP>1</SP> and that from terminals 2 2<SP>11</SP>, 2<SP>1</SP> is absorbed in resistors R<SP>1</SP> 1 , R<SP>1</SP> 1 . The Specification also discloses an embodiment utilizing diodes to provide switching (Fig. 2, not shown).
Patent GB-1416108-A (GB)
Title: Electroslag melting installation
IPC: C22B9/18
Filed: 1973-11-06
Abstract: 1416108 Apparatus for electroslag remelting INSTITUT ELEKTROSVARKI IMENI E O PATONA AKADEMII NAUK UKRAINSKOISSR 6 Nov 1973 [28 April 1973] 51478/73 Heading H5H [Also in Division B3] An electroslag melting installation comprises electrode holders 8, 9 on carriages 4, 5 movable along each of two columns 2, 3 by motors 6, 7 which have coupling means 12, 13 such that the motors can work synchronously or independently, the electrode holders 8, 9 having electrode seats and additional conductive plates 20, 21 which together form a further electrode seat for additional electrodes 22. The electrode holders are mounted in transverse slides 14, 15 and 16, 17 for lateral movement. Three pairs of consumable electrodes (Fig. 2, not shown) 23, 24, 22 may be suspended from seats in holders 8, 9 and in the third seat formed by plates 20, 21. Alternatively the third seat carries a pair of large consumable electrodes (Fig. 3, not shown) the first two seats being empty, only the third seat and one other carry pairs of electrodes (Fig. 4, not shown) in both of which embodiments the carriage drives are synchronized, couplings 12, 13 being engaged. In further embodiments the drive motors are uncoupled and only the first two electrode seats are used, the melting of the consumable electrodes proceeding independently to make two (Fig. 6, not shown) or one (Fig. 5, not shown) ingots. Each column may be provided with a second carriage 31, 32 to hold bottomless moulds each carriage having its own drive and the two drives being provided with couplings (35, 36) whereby they may be used synchronously (for core mould) or independently, to produce one large or two small ingots respectively by continuous casting.
Patent GB-1083290-A (GB)
Title: Method of improving the magnetic properties of silicon steel electrical sheets
Inventor: SIXTUS KLAUS
IPC: C22C38/02
Filed: 1964-12-18
Abstract: The magnetic properties of rolled silicon steel sheets containing up to 4.5% Si are improved by annealing at 1100 DEG -1250 DEG C. in a non oxidizing atmosphere containing up to 4% by volume of SiCl4 to increase the Si content up to about 7% and then finally annealing preferably at 1100 DEG -1300 DEG C. The non oxidizing atmosphere is nitrogen or argon and after the final annealing the sheets are heated to 800 DEG C. and cooled at about 100 DEG C. per minute in a magnetic field of about 200 oersteds.
Patent GB-1127511-A (GB)
Title: Multi-unit optimization
IPC: G05B13/02
Filed: 1965-12-07
Abstract: 1,127,511. Automatic optimizing control. MOBIL OIL CORP. Dec.7, 1965 [Dec. 9, 1964], No.51826/65. Heading G3R. In a system in which products are produced by a plurality of plants operating in succession, each plant is automatically controlled by variables associated with it and further controlled in dependence on variables associated with the whole process to achieve maximum total profit from the system. As described, material to be processed, e.g. oil, passes in succession through two plants each of which comprises two processes. In each plant, signals dependent on variables e.g. cost, quantity, quality, associated with one process, are applied to a computer which automatically and continuously controls the process to maintain maximum profit. Input and output variables of each plant also influence a controller which, if plant conditions deviate beyond predetermined limits, connects further computers to control the plants and restore maximum profit, periodically under the control of plant variables. If variables of the whole system indicate that system conditions have deviated beyond predetermined limits, the controller connects a further computer to control all the plants periodically, but less frequently than the control of individual plants, to restore maximum total profit. The computers operate by equating differential functions to zero. Application to multiple systems and multiple products is described.