baber/WOPTO huggingface dataset:
Patent GB-1139698-A (GB)
Title: Improvements in or relating to arrangements for heating the radiation-sensitive material of thermoluminescent dosimeters
IPC: G01T1/115
Filed: 1966-09-20
Abstract: 1,139,698. Pulse modulation circuits. MANUFACTURE BELGE DE LAMPES ET DE MATERIEL ELECTRONIQUE. 20 Sept., 1966 [21 Sept., 1965], No. 41856/66. Heading H4L. [Also in Division G3] A pulse generator for use in an automatic current control system (see Division G3) comprises transistors 14, 15 connected to form a multivibrator which is associated, as shown, with a differential amplifier constituted by transistors 16, 17 to which is applied a control signal e; the arrangement is such that the pulses produced by the multivibrator 14, 15 are width-modulated in dependence upon variations in the control voltage e, the pulses being applied to the output 11 of the generator over an amplifying transistor 18.
Patent GB-1142259-A (GB)
Title: Storing and dispensing fluids
IPC: H01M8/04
Filed: 1967-09-14
Abstract: 1,142,259. Storing and dispensing fluids; filling tanks. GENERAL MOTORS CORP. 14 Sept., 1967 [19 Dec., 1966], No. 41892/67. Headings B8C and B8T. [Also in Divisions F4 and H1] A system for the storage and controlled release of a highly volatile fluid comprises a chain of storage containers for said fluid, a collection vessel for receiving the contents of the containers, a driving device for passing the chain of containers through the vessel, and a dispensing device in the vessel for successively releasing the contents of the containers inside the vessel. A subdivided liquid storage tube 14 is passed through a pressure vessel 10 by means of a variable speed friction drive 20 and guided by a roller 15. Inlet and outlet passages 12, 13 for the tube to enter and leave the vessel 10, are each provided with a number of seals 18 which may be O-rings of a fluorocarbon polymer, arranged so that the vessel is maintained gastight as the tube passes through. Inside the vessel 10, a blade 16 ruptures each compartment 17 of the tube after it has entered the vessel, releasing the stored fluid, and wipers 19 remove any remaining liquid before the tube leaves the vessel. A stud 23 provides an outlet for the fluid from the vessel. The vapour pressure within the vessel may be increased by heating using coils 22. The series of containers 14 may be formed by intermittently heat-sealing a previously filled plastics tube, which can then be stored on a reel. The seals 18, wipers 19 and tube 14 may all be made from a copolymer of tetrafluoroethylene and hexafluoropropylene. The system described is particularly suitable for storing liquid chlorine, and the outlet 23 may lead to the chlorine electrode of a Li/LiC1/ Cl 2  fuel cell (not shown). The rate of supply of chlorine to the cell can thus be controlled by the speed of the drive 20 and by the heating coils 22.
Patent GB-1081721-A (GB)
Title: Improvements in evaporators
Inventor: MULFORD STEWART FURMAN
IPC: B01D3/06
Filed: 1964-10-15
Abstract: 1,081,721. Multi-stage flash evaporators; distillation of water. BALDWIN-LIMA-HAMILTON CORPORATION. Oct. 15, 1964, No. 42032/64. Heading B1B. In a distillation apparatus for salt water comprising a horizontally-disposed tubular shell 20 divided by vertical partitions 36 into a series of flash chambers 21 through which the preheated water flows successively, each chamber having a distribution box 26 at the water-inlet end of the chamber and condenser tubes in the upper part the water flows into and out of the chambers through passageways passing through the partitions, each passageway including an orifice associated with an adjustable partial restriction, and means are provided for adjusting the positions of the partial restrictions with respect to the orifices whereby the flow of water through the passageways is regulated so that the water level 27 of water in the flash chambers is maintained low but sufficient to ensure that the orifices are completely immersed in water thereby preventing the flow of flashed vapour between the chambers. In Fig. 4, the flow through orifices 34 is regulated by altering the angles of rectangular plates 42 pivoted on their horizontal centre axes on rods. The plates are smaller than the orifices, and each plate is of sufficient size that, when in its maximum flowrestricting position, the desired minimum flow of water through the passageway is permitted. In Fig. 10, the flow through orifice 347 is regulated by conical member 349 which is connected to float 354 by a rod 353 which is pivoted on pin 355. In this embodiment, the flow is automatically regulated for minor changes of water level in the preceding flash chamber. For making major adjustments, the level of the float on rod 353 is adjusted by means of threads 356.
Patent GB-421168-A (GB)
Abstract: 421,168. Ticket - issuing machines. BLACK, H. D., 39, St. James's Street, Pall Mall, London, and DEGEN, A. A. C., 27, Headstone Gardens, Harrow, Middlesex. Aug. 20, 1934, No. 24005. [Class 106 (iii)] In ticket-issuing machines of the kind wherein a determined length of ticket strip 1 is fed past a guillo. tine 42 by a mechanism actuated by a rack 84, the extent of throw of which is controlled by a selector mechanism, noise and wear are reduced by automatically disengaging the rack 84 completely from the feed mechanism during the idle stroke of the rack. This is secured by pivoting the sector rack 84 at a point 85 on a disc 86 which is turnable about a pin 87 by a push bar 89, so that on depression of a selected key stem 70 a link 101 moves the rack idly to the left about the pivot 85, and then as the push bar 89 moves to the right it turns disc 86 about its pivot 87 and raises the rack 84 into mesh with the pins 106 of the feed wheel 80 in readiness for the operative clockwise throw of the rack. During the turning of the disc 86 about its pivot 87, a locking dog 109 is withdrawn from between the pins 106. The link 101 turns a bell-crank 111 which rocks a lever 113 so as to move a lever 115 to close the circuit of a driving motor which rotates (a) a cam 92 to withdraw the locking dog 109 and throw the rack 84 into mesh with pins 106, and (b) a cam 118 to restore the lever 111 and link 101 to their initial positions, thus driving the feed wheel 80. Depression of a selected key stem 70 lifts one of a series of pivoted stops 94 to the chain line position 96, thereby raising a universal retaining bar 71 clear of an abutment 73, a spring 102 forcing the raised stop 94 against a stationary cushion stop 99, and the stop 94 carrying with it the link 101 to the required position. The guillotine knife 42 is moved sharply to the right to sever the strip by a lever 120 having a pair of arms 124, 125 bearing respectively on the lever 113 and on a block 126 pivoted at 127 to a stationary part. A pin 123 rotating with cams 92, 118 engages the lever 120 to retract the knife 42, while the cutting stroke is effected during the re-setting phase when the pin 123 restores block 126 and lever 120 to their original positions.
Patent GB-1269615-A (GB)
Title: A gear drive
IPC: B23Q5/14
Filed: 1970-09-03
Abstract: 1,269,615. Variable speed gears. INDEXWERKE KG HAHN & TESSKY. 3 Sept., 1970 [10 Sept., 1969], No. 42230/70. Heading F2D. A variable ratio transmission (e.g. for a machine tool drive shaft S driven by a motor 30) has four shafts W, X, Y, Z of which, W, X and Y are drivingly interconnectible by interchangeable removable gears ABCD a gear 8 rotatable on the shaft Z meshing with gears 5 and 6 each rotatable on the shaft X or Y, and a gear 4 rotatable on the shaft Y meshing with gears 3 and 7 rotatable on the shafts X and Z, clutches K 1  ... K 4  can connect the gears 7, 8, 3, 4 to their shafts and clutches K 5 , K 6  can connect the gears 5, 6 to the gears 3, 4. Maintaining the gears ABCD on the shafts shown, four forward and two reverse ratios and braking of the output shaft S may be available by selector operation of the clutches, the two reverse ratios differing in sign only from two of the forward gears. Interchanging the gears B, C and D reverses the rotation of these ratios. As shown the gears 3 and 4 are the same size as are gears 5 and 6.
Patent GB-1079637-A (GB)
Title: Improvements in and relating to apparatus for the detection of broken yarn and the like on textile machines
Inventor: GREGORY JOHN EDWARD REGINALD
IPC: B65H63/028
Filed: 1965-10-06
Abstract: 1,079,637. Stop motions. FLIGHT REFUELLING Ltd. April 27, 1966 [Oct. 6, 1965; Feb. 25, 1966], No. 42443/65. Headings DID, D1F, D1J and D1M. A stop motion comprises an arm 4 pivoted on a membrane 6 and having a magnet 5 that operates a reed-type switch 10, 11 when slack or broken thread 1 allows the arm to pivot. The arm 4 and casing 7 may be moulded in plastics material and the eyelet 3 may be ceramic. The mechanisms may be arranged in banks and pivoted levers 12 may be provided to render inoperative unused arms 4. The magnet may be annular and surround the reed-type switch.
Patent GB-1515026-A (GB)
Title: Electro-optical correlator
IPC: G01S7/527
Filed: 1975-10-16
Abstract: 1515026 Electro-optical correlator OPTISCHE INDUSTRIE DE OUDE DELFT NV 16 Oct 1975 [28 Oct 1974] 42481/75 Headings G1A and G1U In an electro-optical correlator the brightness of a moving, e.g. rotating, track 12 is modulated according to the amplitude of one signal f(t) and light from the track passes through a mask 13 to a photo-multiplier tube 14 which provides an integrated output, the light transmission of the mask being graduated according to the amplitude of a second signal g(t), Fig. 1 (not shown). In the embodiment of Fig. 2 the electron beam 2 modulated by the signal f(t) describes a circular track on the CRO screen 5. The running persistent portion of this track is focused on the photocathode 7 of an image intensifier tube 8 by an objective 6. The deflection coils 9, 10 of the tube 8 are energized complementarily to those of the CRO1 so that the moving spot on screen 5 becomes a stationary one at the centre of the anode 11 with the persistent portion of the track rotating about it. A grey filter may be mounted between the tube 8 and mask 13 to compensate for the radially decreasing intensity of the light track 12. The track on screen 5 may alternatively be a straight line and the mask 13 adapted accordingly. In a further embodiment the signal f(t) is split into positive and negative portions each being fed to a separate correlator as shown in Fig. 2 the outputs of the tubes (14) being recombined by an amplifier (41). This avoids the need for D.C. bias of the input signal f(t). In a system for Doppler detection Fig. 5 (not shown) the output of the image tube 8 passes via a second objective to a beam-splitter (51) and then to two photo-multiplier tubes (54, 55) via respective masks (52, 53) the variations in transmission of one mask being slightly expanded spatially and those of the other mask slightly compressed relative to a notional mask representing the unaltered transmitted signal. For Doppler detection with only one mask the signal f(t) modulates a succession of parallel lines (60), Fig. 6 (not shown) and the mask includes radially extending regions (62, 63) having different light transmission factors.
Patent GB-1356568-A (GB)
Title: Manufacture of carbon fibres
IPC: D01D10/04
Filed: 1970-09-08
Abstract: 1356568 Carbon fibres and films COAL INDUSTRY (PATENTS) Ltd 13 Aug 1971 [8 Sept 1970] 42995/70 Heading C1A Shaped carbon articles selected from fibres, filaments and films, are made by spinning or extruding a non-polymeric hydrocarbon material consisting of mixtures of highly aromatic organic non-polymeric compounds either admixed with an aromatic hydrocarbon having at least two fused rings reacted with a crosslinking agent or a cross-linking agent reacted with at least a part of the non-polymeric hydrocarbon material, to form the desired article, then oxidize and carbonize it. The cross-linking agent is an organic compound containing two substituent groups capable of reacting with and substituting on to aromatic hydrocarbon rings in same cases in the presence of a Friedel-Crafts catalyst. The specification contains an extensive list of cross-linking agents selected from acyl chlorides, alkyl chlorides, carboxylic acid anhydrides, alcohols, ethylenically unsaturated monomers and polymers including synthetic rubbers, and drying and semi-drying oils. Preferred agents are di-(methylol)phenol and di-(hydroxymethylol phenyl)-methane. The agent exemplified is benzene disulphonylchloride. The non-polymeric material may be a solution or extract of coal pitch or tar obtained from coal or petroleum pitch, bitumen or asphalt. The aromatic hydrocarbon material having at least two fused rings may be an aromatic fraction formed in coal tar or petroleum refining. In the example after fibre formation a tow of about 500 fibres about 100 to 200 metres in length and under a tension of about 1 mg./fibre, was oxidized in oxygen at 270 C. at a rate of 10 C./min. and then carbonized in nitrogen at a rate of 850 C./hr. to 1000 C. The fibres obtained had diameters of about 10À8 Ám., a tensile strength of 0À86 GN/m.<SP>2</SP> and a Young's  moduli of 48 GN/m.<SP>2</SP>. A polymer may be included in the non-polymeric hydrocarbon material.
Patent GB-1404775-A (GB)
Title: Articulated riser
IPC: B63B27/34
Filed: 1972-09-19
Abstract: 1404775 Subaqueous structures EXXON PRODUCTION RESEARCH CO 19 Sept 1972 [6 Oct 1971] 43282/72 Heading E1H [Also in Division B8] A flexible riser 10 for supplying fluids from a sea bed base structure, via a plurality of fluid lines to, e.g. a moored vessel 15, comprises a plurality of substantially identical sections 11 connected together via annidirectional pivotal joints 12. The joints 12 comprise a ring 33 through which pass flexible coupling- lines 30 and which is pivotally connected, through mutually perpendicular axes A-A and B-B, to U-shaped structures 31, 32 at the ends of adjacent sections 11, 11'. The flexible lines 30 may be replaced by rigid lines connected to the fluid lines of sections 11 and 11' via swivel-joints aligned with the axes A-A and B-B. The sections 11 may be attached to a sea bed manifold via a rigid riser (20) Fig. 3 (not shown), which is pivoted to the sea-bed manifold.
Patent GB-1174509-A (GB)
Title: Process for Preparing Allyl Chloride and Methallyl Chloride.
IPC: B01J27/057
Filed: 1967-09-25
Abstract: 1,174,509. Allyl and methallyl chloride. FARBWERKE HOECHST A.G. 25 Sept., 1967 [23 Sept., 1966], No. 43554/67. Heading C2C. Allyl or methallyl chloride is made by reacting oxygen with (a) mixtures of propylene or isobutylene and hydrogen chloride and/or (b) monochloropropane or monochloroisobutane in the presence of a catalyst consisting of tellurium, tellurium compound or mixtures thereof; at least one basic nitrogen compound or the salt thereof and at least one transition metal capable of forming hetereopoly acids or the compounds thereof.
Patent GB-1001310-A (GB)
Title: Improvements in or relating to separating volatile constituents from metalliferous materials
IPC: C22B19/28
Filed: 1963-11-05
Abstract: <PICT:1001310/C6-C7/1> Volatile constituents are removed from metalliferous material by supplying the material, in particulate form, to furnace 10 through pipe 18 and secondary air through pipe 16 so that the material descends while whirling in contact with the wall, fuel, such as pulverized coal, and insufficient primary air being introduced through pipes 22 and 20 in the lower part of the furnace to form a reducing atmosphere in the lower part, combustion being completed by the secondary air in the upper part of the furnace.  The metalliferous material is progressively heated and melted as it descends and the volatile constituent is progressively volatilized to be removed with the combustion gases through outlet 14. Preferably the inlets for metalliferous material and secondary air are so far below gas discharge passage 14 that combustion of the fuel is substantially complete before the gases enter that passage. Molten products form a pool 12 below the surface of which the fuel and primary air are supplied tangentially int the furnace.  Reference is made to the removal of zinc in the form of zinc oxide fume from lead sinter containing zinc, the molten product being lead bullion and slag.ALSO:<PICT:1001310/C1/1> Volatile constituents are removed from metalliferous material by supplying the material in particulate form to furnace 10 through pipe 18 and secondary air through pipe 16 so that the material descends while whirling in contact with the wall, fuel, such as pulverized coal, and insufficient primary air being introduced through pipes 22 and 20 in the lower part of the furnace to form a reducing atmosphere in the lower part, combustion being completed by the secondary air in the upper part of the furnace.  The metalliferous material is progressively heated and melted as it descends and the volatile constituent is progressively volatilized to be removed with the combustion gases through outlet 14.  Preferably the inlets for metalliferous material and secondary air are so far below the gas discharge passage 14 that combustion of the fuel is substantially complete before the gases enter that passage.  Molten products form a pool 12 below the surface of which the fuel and primary air are supplied tangentially into the furnace. Reference is made to the removal of zinc in the form of zinc oxide fume from lead blast furnace slag, or from lead sinter containing zinc, in which case the molten product is lead bullion and slag, and the treatment of sulphide ores or concentrates, such as chalcopyrite, from which sulphur is removed as sulphur dioxide leaving an enriched molten phase.
Patent GB-1413147-A (GB)
Title: Method and apparatus for controlling the power supply to heating elements
IPC: H05B3/00
Filed: 1972-09-22
Abstract: 1413147 Power supplies for resistance heating WESTERN STRESS RELIEVING SERVICES Inc 21 Sept 1973 [22 Sept 1972] 43988/72 Heading H2H A power supply for the pre-heat treatment and stress relieving of pipe welds comprises resistance heaters 25, 26, a saturable reactor 18 for controlling the supply of power from a transformer 10 to the heaters, a first control voltage source TR 1 for enabling the reactor to provide a predetermined power to the heaters, a second control voltage source TR2 for enabling the reactor to provide a lower power to one of the heaters, thermocouples TC1, TC2, the signals from which are compared to provide an output signal when the difference between the signals exceeds a predetermined amount and a switch unit 39 responsive to the output signal for disconnecting the first control voltage source from the saturable reactor and connecting the second control voltage source to the saturable reactor. When the heaters 25, 26 are energized via the transformer 10 and the reactor 18 the heat in the pipe 27 rises and the signal from the thermocouple TC1 eventually exceeds that from the thermocouple TC2 by the predetermined amount. This is detected by a differential amplifier (400), Fig. 4 (not shown) in a control unit 42 which closes a switch C2 in the unit 39 to short circuit the heater 25. A logic circuit 33 which includes a counter supplied with clock pulses provides a digital signal representing the required temperature of the workpiece. This signal is converted to an analogue signal and compared with the signal from the thermocouple TC2 by a comparator (410) in the unit 42. The output of the comparator controls a switch C1 which connects the high voltage supply from the transformer TR1 or the low voltage supply from the transformer TR2 to the control winding 55 of the saturable reactor. The connection of the high or low voltage supply to the reactor winding depends on the position of a switch C3 which is operated simultaneously with the switch C2. The circuitry enables a gradual increase in temperature of the workpiece until the required temperature is reached whereupon a constant "soak" temperature is applied for a predetermined duration before the temperature is gradually reduced. A further set of heaters may be controlled by a slave circuit 65 connected to further thermocouples TC1a, TC2a and a switch unit 39a. The transformers TR1, TR2 may be replaced by thyristors.
Patent GB-1182474-A (GB)
Title: Textile Treating Apparatus and Process
Inventor: MAGUIRE LEO RUSSELL
IPC: D06B3/32
Filed: 1967-09-27
Abstract: 1,182,474. Rollers. CROMTON & KNOWLES CORP. 27 Sept., 1967 [29 Sept., 1966], No. 44052/67. Heading F2U. [Also in Division D1L] A roller 21 useful in a textile treating machine (see Division D1) has on its surface a grooved pattern formed of a left- and a right-hand helical screw thread 23, 25, of substantially equal pitch and which extends end to end across the roller. The roller may be of stainless steel, coated with P.T.F.E.
Patent GB-1244600-A (GB)
Title: A sealingly closed or closable pressure vessel assembly
IPC: F16J13/02
Filed: 1970-09-15
Abstract: 1,244,600. Pressure resisting closures. LUMMUS NEDERLAND N.V. 15 Sept., 1970 [7 April, 1970], No. 44053/70. Heading F2P. A pressure vessel, e.g. a heat exchanger, closure comprises a metal cover 6, supported on its outer side 15 by a plurality of support elements 7 locked in a recess 8 in the vessel wall by a detachable locking device 9, and a metal seal 12 welded to the vessel wall and the outer side of the cover. The cover 6 is seated on a shoulder 19 of the vessel wall and the support elements 7 are segments of a ring held in the recess 8 by a locking ring 9, bolted to the cover. The seal is a semi-toroidal metal ring 12. Axial bores in the locking ring 9 and radial bores 21 in the vessel wall allow for the insertion of pins to aid removal of the locking ring from the cover 6 and the segmented ring 7 from the recess 8 respectively after the bolts 11 have been removed. The metal seal 12 is then cut through by burning or grinding to enable the cover 6 to be removed.
Patent GB-1439704-A (GB)
Title: Electrophotographic printing system
IPC: G03G13/22
Filed: 1973-09-20
Abstract: 1439704 Electro-photography MITSUBISHI DENKI KK 20 Sept 1973 [20 Sept 1972 (2) 18 Jan 1973] 44152/73 Heading G2H In an apparatus for electro-photographic printing, an electro-photographically sensitive substrate comprised of a charge maintaining layer and  a photo-conductive sensitive layer is charged to form an electrical charge image of effectively single polarity corresponding to a light image exposed on the electro-photographically sensitive substrate, the charge image is transferred to a recording substrate, and a conductive member is brought into contact with the surface of the electrophotographically sensitive substrate to transfer residual charge thereon to erase the residual potential or adjust the residual potential to a predetermined value. The conductive roller may comprise a metal roller covered with a low resistance paper, and is connected to either a bias voltage or to earth. The charge maintaining layer may be an insulating layer alone or combined in a composite layer comprising a photo-conductive layer sensitive to radiation in a range outside that of the visible light range, e.g. sensitive to ultraviolet light, to which it may be exposed immediately prior to contacting with the conductive member to aid removal of residual charge. A number of different layer combinations are described.