baber/WOPTO huggingface dataset:
Patent GB-1326276-A (GB)
Title: Apparatus for the smooth switching on of an electrical load
IPC: H02P1/28
Filed: 1970-11-23
Abstract: 1326276 Control of motors and lighting systems SCHUBERT & SALZER MASCHINENFABRIK AG 23 Nov 1960 [23 Dec 1969] 55529/70 Headings H2H and H2J To provide smooth switching on of an electrical load, e.g. a motor or lighting, it is energized via an electronic switch, e.g. a thyristor or triac 6 whose firing angle is steadily advanced by an arrangement in which a sawtooth voltage synchronized with the A.C. supply and generated at 2 is added to the rising ramp voltage produced at 3, the combined signal voltage being applied to a threshold switch 4 whose output controls the triggering of the switch 6. 5 is an optional matching stage. The peaks of the sawtooth exceed the threshold level U3 at an earlier point in successive half cycles until the load is fully energized. The sawtooth is produced on a capacitor which is charged via a potentiometer 20 from the full wave, unsmoothed, rectified output of a transformer 1, and is discharged by a breakdown semi-conductor device or a diode. The ramp voltage is similarly produced, but the circuit has a longer time constant, the rectifier may be half wave, its output is smoothed, and discharge may be effected by relay contacts. The threshold switch comprises a transistor whose point of conduction is determined by a Zener diode. When it conducts it either triggers a thyristor which switches the A.C. supply to the trigger electrodes of a pair of back to back thyristors supplying the load (Fig. 10, not shown) or it turns on a second transistor connected to the trigger of a triac in the load circuit (Fig. 18, not shown). It may be arranged for the ramp voltage to decrease from a maximum when required, e.g. to dim stage lighting. The invention may be used in a single or a polyphase system and when the load is a motor it may be reversible if polyphase. In polyphase systems the control may be used in one phase only but preferably there is one in each phase. The control transformer 1 is connected between one line common with load terminal A and another line whose phase leads that of the first. A motor load may be an A.C. machine, or a D.C. machine supplied through bridge rectifiers connected to a transformer whose primary forms the load on switch 6.
Patent GB-1254906-A (GB)
Title: Pilot operated unloading valve
Inventor: HODGSON ROBERT FRASER
IPC: F15B11/17
Filed: 1969-11-14
Abstract: 1,254,906. Fluid-pressure servomotor systems. COMMERCIAL SHEARING AND STAMPING CO. Nov. 14, 1969, No. 55881/69. Heading G3P. A pump unloading valve for use in a hydraulic system having widely varying pressure/flow requirements, comprises a block 10 provided with inlets 14, 24, outlets 18, 22 and an exhaust passage 49, which are inter-connected by pressure responsive valves 27, 35 and 61 arranged to divert the flow from inlet 24 to exhaust 49 according to the demands of the hydraulic system. The valve has a further exhaust passage 19 connected to outlets 18, 22 by a pressure responsive relief valve 21. The Specification describes in detail the operation of the valve feeding fluid to the rams of a front end loader.
Patent GB-1242306-A (GB)
Title: A synergistic pharmaceutical composition suitable for the treatment of certain pathological venous conditions
IPC: A61K31/70
Filed: 1969-11-14
Abstract: 1,242,306. Compositions comprising aescin. LABORATORIES OM S.A. 14 Nov., 1969 [4 Dec., 1968], No. 55972/69. Heading A5B. A composition for the treatment of venous diseases comprises a therapeutically effective amount of aescine and calcium hydroquinone sulphonate and a pharmaceutically acceptable carrier. The composition may, for example, be in the form of a tablet, capsule or suppository.
Patent GB-1355278-A (GB)
Title: Soldering iron tip and method of manufacturing same
IPC: B23K3/047
Filed: 1972-12-06
Abstract: 1355278 Soldering KARL ROESCH Inc 6 Dec 1972 [15 Dec 1971] 56246/72 Heading B3R A soldering iron tip comprises a metallic heating member 10 and a ceramic strip member 18, the ceramic member having one surface bonded by a thermally conducting bond over its whole area to the heating member and another non-wettable, electrically insulative surface for applying heat to the parts to be soldered. In an embodiment a tip for use in an automatic or semi-automatic machine for soldering integrated circuit comprises a U-shaped metal heating member 10, Fig. 1, e.g. of Kovar (Registered Trade Mark), connected to a voltage source 16 and carrying a strip 18 of ceramic, e.g. of beryllium oxide to engage the electronic components to be soldered. A further strip 20 of ceramic, e.g. of alumina is provided above the strip 18 to resist deformation of the assembly. To secure the ceramic parts to the metal heating part the ceramic is first metallized by in the case of alumina, applying a molybdenum-manganese coating to a surface fired at 1000‹ C. and then firing again at 1500‹ C. A layer of nickel, copper or gold is provided on the metallized layer and the heating element is brazed thereto. A prior art soldering tip comprising a tantalum element coated with a non-wettable, non-conductive tantalum oxide film is referred to.
Patent GB-1409078-A (GB)
Title: Mould for the production of carbon and ceramic mouldings
IPC: B28B7/00
Filed: 1972-12-07
Abstract: 1409078 Compression mould VEREINIGTE ALUMINIUM-WERKE AG 7 Dec 1972 [24 Dec 1971] 56595/72 Heading B5A Seamless ceramic or carbon cylinders, e.g. electrodes, are compression moulded with vibration in a mould having a horizontal cylindrical cavity and comprising a lower half shell 2 attached to side walls 1, and an upper shell 4 sliding within the walls 1. Pressure is applied to shell 4 and walls 1 are vibrated.
Patent GB-1169529-A (GB)
Title: Truss and Connector Plates Therefor.
IPC: F16B15/00
Filed: 1966-12-19
Abstract: 1,169,529. Spiked plates. AUTOMATED BUILDING COMPONENTS Inc. 19 Dec., 1966, No. 56821/66. Heading F2H. A connector plate for a roof truss which is assembled in a workshop and then dismantled for transporting to a site, comprises a number of short teeth 24 and relatively long teeth 26, the teeth 26 have increased resistance to withdrawal and are located in one half of the plate which remains connected to a structural member when the truss is dismantled. Nails passing through holes 28 are used to connect the other half during re-assembly. The teeth pattern leaves bands 58 of metal across the plate to preserve its strength. The teeth 24 and 26 may be distributed evenly across the plate, or all the teeth 24 may be in one half and all the teeth 26 in the other.
Patent GB-1235018-A (GB)
Title: V-triazolyl-styryl-benzoxazoles, and their use as optical brighteners
IPC: D06L4/614
Filed: 1969-11-21
Abstract: 1,235,018. Brightening textiles. J. R. GEIGY A.G. 21 Nov., 1969 [22 Nov., 1968], No. 57079/69. Heading D1P. [Also in Divisions C2, C3, C4 and C5] Compounds of formula:- in which Y is oxygen or sulphur; R 1  and R 2  represent hydrogen, alkyl or an optionally substituted phenyl group; or R 1  and R 2  together complete a non-aromatic ring; R 3  is hydrogen, halogen or a cyano, alkyl or sulphonic acid group; and R 4  represents hydrogen or an alkyl, akoxy, alkylsulphenyl or alkylcarbonyl group, one used as optical brightening agents for textiles and textile fibres. Examples are given of the brightening of (a) nylon fabric, (b) a polypropynene fabric and (c) a polyamide fabric. It is also stated that the brightening agents may be used for acetate silk and cotton.
Patent GB-1165579-A (GB)
Title: Xerographic Plate and Methods of Manufacture.
IPC: G03G5/043
Filed: 1966-12-22
Abstract: 1,165,579. Xerographic plate. RANK XEROX Ltd. 22 Dec., 1966 [27 Dec., 1965], No. 57410/66. Addition to 1,067,223. Heading H1K. A xerographic plate comprises a photoconductive layer comprising a composition of selenium, arsenic and a halogen other than iodine. The layer may be self-supporting or on a substrate of brass, Al, Au, Pt, and steel, metallized paper, plastics sheet coated with Al or Cu 2 I 2  or glass coated with Cr or Sn oxide. The support member may be rigid or flexible and in the form of a sheet, web or cylinder. Bromine, chlorine, sodium hypochlorite or a halogen compound of As or Se may be added to a cooled sample of arsenic and selenium and then heated to complete the reaction. The product is evaporated on to the substrate in vacuum. The halogen may be dispersed throughout the layer or confined to a surface layer.
Patent GB-1376324-A (GB)
Title: Timer for pulse welding devices
IPC: B29C65/38
Filed: 1971-12-13
Abstract: 1376324 Seaming non-metallic sheet material KARL LEIBFRIED GmbH 13 Dec 1971 [23 Dec 1970] 57698/71 Heading B5K In a timer for an impulse welding device for thermoplastic film or packaging material having a thermoplastic coating, the device comprising a pair of welding jaws, the curve of the temperature of the welding jaws is balanced by the curve of the voltage of a capacitor having associated charging and discharging resistors connected in an electric circuit through which the flow of current to the welding device and the charging of the capacitor are maintained by a circuit component until a trigger, responsive to a predetermined charging voltage of the capacitor, switches the component to a blocking condition from which it returns when the circuit is separated from the mains supply, the said curves of temperature and voltage being plotted against time. If a voltage is applied to the circuit when the welding jaws are brought towards each other, the charging of the capacitor begins, simultaneously with the supply of current to a heating wire or ribbon, by way of a charging resistor, allowing for a time constant for heating the jaws. As soon as the voltage of the capacitor reaches a value corresponding to the temperature of the heating jaws, the supply of current to the heating wire is interrupted and the charging of the capacitor is concluded. The jaws cool down and the capacitor simultaneously discharges through a discharge resistor, allowing for the time constant for the cooling of the jaws. When the circuit is re-energized during the next welding process, the same procedure is repeated, the charging of the capacitor beginning from a smaller or larger residual charge, according to the length of the welding interval and thus the threshold value of trigger is sooner or later reached. Compensation of the variation in the mains voltage may be achieved by keeping the threshold value of the trigger constant and supplying the circuit with a voltage proportional to the mains supply. Electrical circuits (not shown) are described.
Patent GB-1247930-A (GB)
Title: Improvements in or relating to labelling machines
Inventor: KRONSEDER HERMANN
IPC: B65C9/14
Filed: 1968-12-10
Abstract: 1,247,930. Labelling machine. H. KRONSEDER. 10 Dec., 1968 [15 Dec., 1967], No. 58550/68. Heading B8F. A mechanism for transferring labels from a label container to a labelling or intermediate cylinder in a labelling machine comprises a member 4 having suction nozzles 6, the member 4 being given a pivotal motion superimposed on a rotary motion so that it is brought to a standstill during part of the period during which it takes the label from the container, and is then given a slight reverse displacement relative to its direction of rotation and also a transverse movement to remove the label from the container, the member then being accelerated in the direction of its rotation to give it an angular velocity greater than that of its steady rotational velocity during the period in which the label is taken up by the labelling or intermediate cylinder. As shown, the member 4 is pivotally mounted on a crank-pin 3 which is constantly rotated about a driving shaft 1 in an anti-clockwise direction. An arm 7 fast with the member 4 carries a follower roller 8 engaging a cam groove of a stationary member, the groove being shaped so that in the position shown in which the member receives a label 11 from the container, the member is pivoted clockwise to station the working face relative to the label, subsequent rotation of the crank giving further clockwise pivoting of the member 4 to shift the working face slightly clockwise and raise it above the container to withdraw a label from beneath retaining hooks 13 of the container. Further rotation of the crank accelerates the member 4 in the direction of rotation of the crank to bring the speed of the working face up to that of the labelling or intermediate cylinder. In a modification (Fig. 6, not shown) the transfer member is again rotated by a crank, but to give it its pivotal movements the transfer member is fast with a pinion concentric with the crank-pin and meshing a pinion rotatably mounted in the transfer member and fast with an arm of a roller engaging a stationary cam groove. In another modification (Fig 7 and 8, not shown) the transfer member is pivotally mounted in an arm which is pivotally mounted on the crank-pin, the arm being fast with a lever carrying a roller engaging the stationary cam groove. In this embodiment the transfer member is pivoted by a sector fast with the crank-pin and meshing a pinion fast with the transfer member.
Patent GB-1379604-A (GB)
Title: Trench shoring frame
IPC: E02D17/08
Filed: 1971-12-16
Abstract: 1379604 Trench shoring frames HUDSWELL MORRICE Ltd 18 Dec 1972 [16 Dec 1971] 58553/71 Heading E1E In a trench shoring frame 2, 4, 8 adapted to be moved along the trench by a thrust plate structure, (not shown), the frame is provided with a series of vertically adjustable plates 16, 22 which by means of screw jacks or hydraulic jacks 12 are adapted to be urged into the ground below the level of the trench to facilitate pipe laying. In a modification, see Fig. 2, (not shown), the plates are replaced by a wedge-shaped caisson pivotally mounted on a cross-member 8A and raised or lowered by jacks mounted on a cross-member 6A.
Patent GB-1376630-A (GB)
Title: Photoelectric converting optical fibre and method of making the same
IPC: G02B6/04
Filed: 1971-12-22
Abstract: 1376630 Light guides FUJI PHOTO FILM CO Ltd 22 Dec 1971 [26 Dec 1970] 59760/71 Heading G2J [Also in Division H1] A peripheral surface portion 2 of an optical fibre 1 is roughened to scatter light into a photoconductive element 4 thereon. In the simplest embodiment the surface portion 2 is roughened by spraying with an abrasive or hydrofluoric acid and the photo-conductor 4, e.g. Cd Se or Cd S, and electrodes 3, e.g. Au, are evaporated thereon. The manufacture of a one-dimensional array of fibres for a scanner in a copying machine is also described. In this process a metal-coated fibre (8) is wound helically around and stuck to the surface of a cylinder, (7) see Figs.2, 3 (not shown) and a thermoplastic resin pattern (11) of the fibre surface is taken, see Fig.4 (not shown). Photo-conductor and electrode areas (12, 13) are deposited in the grooves of the pattern corresponding to adjacent turns of the coiled fibre. Parts of the metal coating of the fibre coils are removed by a process which also roughens the surface, and the pattern, complete with photoconductors and electrodes, is applied to the fibre still wound on the cylinder. After a soft resin support layer has been applied to the exposed fibre portions and a stiffening member applied to the parts of the fibre which are to be scanned by a scanning head, each turn of the fibre is cut along a common line parallel to the cylinder axis and the separated lengths of fibre, each carrying a photo-conductive element, are detached from the cylinder to form a one-dimensional fibre array. The remaining areas of the metal coating on the fibres serve as electrical lead wires. Such an array may provide simultaneous electrical signals from all the fibres.
Patent GB-1372800-A (GB)
Title: Milk-clotting enzyme
IPC: C12N9/58
Filed: 1972-12-28
Abstract: 1372800 Coagulating milk NESTLE SA 28 Dec 1972 [20 Jan 1972] 59763/72 Heading A2B [Also in Division C3] A milk-coagulating enzyme, used as a substitute for rennet is obtained by aerobic cultivation of the microbiological species Physarum polycephalum and separation of the enzyme thereby produced. The enzyme, recovered in aqueous solution may be freeze dried.
Patent GB-1184648-A (GB)
Title: Direct Exchange Line Repeater.
IPC: H04M7/00
Filed: 1968-12-18
Abstract: 1,184,648. Automatic exchange systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 18 Dec., 1968 [21 Dec., 1967], No. 60094/68. Heading H4K. A main exchange line is terminated at a private exchange across one diagonal of a rectifying bridge, the other diagonal of which feeds a call relay O and a winding on a line transformer T. Call relay O may be a reed relay the response of which is damped against transients by the fact that it is in series with transformer winding W3. To complete a loop across the main exchange line, contacts 21 shunt the relay O and contacts v shunt ringing circuit components R, C2. Contacts 21 may be provided by a reed relay. Contacts v are used to relay loop disconnect pulses to the main exchange, winding W3 providing no distortion as it discharges in both directions through the bridge. Standing currents in the transformer windings may be set in opposition to produce a low net magnetization and allow use of a line transformer that is small and cheap.
Patent GB-1332830-A (GB)
Title: Tubular bodies
IPC: B65D/
Filed: 1970-12-31
Abstract: 1332830 Making hollow-ware CONTINENTAL CAN CO Inc 31 Dec 1970 [12 Jan 1970] 61963/70 Headings B3A B3J and B3Q [Also in Division B8] A can &c. body is provided at at least one end with indentations 21 which tend to be ironed out when a flange is formed. In the example, the body has a welded, cemented or soldered side seam 11 and the indentations 21 are formed before the seam. Notches 12 are also formed in a blank of the body to prevent cracking adjacent the seam during a subsequent operation to form a flange 25. The end of the body may be necked (23), Fig. 3 (not shown), producing axial wrinkles (24) except beneath the notches 12, which are substantially protected by the indentations 21. During flanging, the wrinkles 26 tend to be ironed out.
Patent GB-1243477-A (GB)
Title: Apparatus for use in mounting an object from a suspended ceiling
Inventor: YOUSEFPOR YUL JOSEPH
IPC: E04B9/00
Filed: 1969-12-23
Abstract: 1,243,477. Mounting lamps in a suspended ceiling; catches. ESQUIRE INC. 23 Dec., 1969 [10 April, 1969], No. 62730/69. Headings E1W and E2A. [Also in Division F4] A light fitting is located in the recess of a suspended ceiling by means of rotary dead bolts 55, which can be turned outwardly to engage the inverted-T girders 21 of the ceiling. A transparent window 39 is hinged to one of the other edges of the fitting, by being bolted to a suitably disposed dead-bolt 55. The edges of the fitting are covered with a trim plate (70, Figures 2 and 6 not shown). The dead bolts swing down under gravity when the fitting is raised from the girders.
Patent GB-701047-A (GB)
Abstract: 701,047. Fusible cut-outs. CARR FASTENER CO., Ltd. Jan. 8, 1952 [Feb. 26, 1951], No. 4690/51. Class 38 (i) In a fuse holder of the type comprising an insulating body 1, having a bore 2 for a cartridge fuse and a cap 15 detachably secured to the body to retain the fuse therein, a contact 7 for engaging one end of the fuse is reciprocably mounted in the bore and urged by a spring 9 out of engagement with a terminal 3 at the base of the bore. After insertion of a fuse and on attachment of the cap, contact 7 is depressed to make contact with terminal 3, the other end of the fuse engaging a contact sleeve 16 in the cap which has lugs 18 engaging bayonet slots 12 in a sleeve 11 at the outer end of bore 2. Sleeve 11 has legs 13 which project out through slots in the wall of the body, said legs having spring tongues 14 which snap over the body to retain the sleeve in position, one of the legs forming the other terminal of the holder.
Patent GB-2003233-A (GB)
Title: Fluid pressure actuator
IPC: B60T17/08
Filed: 1978-08-25
Abstract: A vehicle spring brake-actuator comprises a cylinder 1 with a piston 3 loaded by springs 5, a screw-threaded piston rod 7 running in a nut 8 mounted in the piston 3, a control member 10 which engages the nut 8, and a detent plunger 11 which normally prevents the control member 10 and nut 8 from rotating. Pulling a ring 13 releases the detent plunger from the member 10, which rotates with the nut 8 to allow the piston to move under the force of the springs 5. This rotation of the member 10 is retarded by a retarder ring 14 which becomes pressed against a part of the cylinder 1 firstly by fluid impelled by the piston 3 and then by force from the piston 3 through resilient force-transmitting means 15. There are cushion means 16 to finally retard and arrest the piston 3. <IMAGE>
Patent GB-2008171-A (GB)
Title: Oil base fluids with organophilic clays having enhanced dispersibility
IPC: C09K8/03
Filed: 1978-10-30
Abstract: An oil-base emulsion fluid comprising an oil phase, water eg in an amount of from about 2 to about 50% by volume and from 1 to 30 lbs. per barrel (2.8 to 86 g/l) of an organophilic clay gellant comprising the reaction product of a smectite- type clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams and from 80 to 120 milliequivalents per 100 grams of clay of a methyl benzyl dialkyl ammonium compound, wherein the compound contains 20 to 35% alkyl groups having 16 carbon atoms and 60 to 75% alkyl groups having 18 carbon atoms.
Patent GB-2044006-A (GB)
Title: Radar antenna
IPC: H01Q13/02
Filed: 1978-11-23
Abstract: In radar apparatus for surveillance of targets on a plane below the level of the radar apparatus, improved focus for short range targets, which are at depression angles below the horizontal, is obtained by using as a transmitting and/or receiving antenna, a slotted waveguide array 14 to give azimuthal beam shaping, reflecting surfaces 15 extending forwardly from above and below the slotted waveguide to give beam shaping in the vertical plane and a lens 16 across the front of the aperture formed by the reflecting surfaces, the lens modifying the signal phase distribution in accordance with depression angle to give the required focus. <IMAGE>
Patent GB-2008978-A (GB)
Title: Improvements relating to methods of treating metal surfaces and bonding polymers thereto
IPC: B29C63/48
Filed: 1978-12-05
Abstract: Thermoplastic synthetic resins are bonded to a metal surface by treating the metal surfaces to produce a fine, sub-microscopic fibrous or porous structure and contacting a treated surface with the resin in the liquid state so that an intimate bond is formed between the metal and the resin. The treatment may be of oxidation or deposition of a metal on the metal surface and the treatment produces surface irregularities having a high or lateral dimension of the order of 0.1 to 10 microns. The preferred synthetic resin is a polyolefine and the method is particularly useful in coating carbon steels.
Patent GB-2020799-A (GB)
Title: Detecting flaws in welds
IPC: G01N21/88
Filed: 1979-02-14
Abstract: In apparatus and a method for detecting flaws in welds in a workpiece 1, the portion of the workpiece 1 containing the weld 2 is maintained at a constant temperature and the weld is scanned by an infrared detector 16. The weld is then scanned again with the workpiece in contact with a cooling probe 9 to produce a steeper temperature gradient across the weld. Comparison of the signals produced by each scan reveals the existence of defects in the welds. The signals may be displayed on an oscilloscope and the display may be observed by a TV camera and recorded on videotape. <IMAGE>