baber/WOPTO huggingface dataset:
Patent GB-1472197-A (GB)
Title: Process for the manufacture of powders based on a vinyl chlorid homopolymer or copolymer and containing emulsifier
IPC: C08J3/12
Filed: 1974-09-13
Abstract: 1472197 Preparation of powders of vinyl halide polymers CHEMISCHE WERKE HULS AG 13 Sept 1974 [14 Sept 1973] 39978/74 Heading C3P Vinyl chloride homo- or co-polymer powder having properties which are particularly suitable in the manufacture of plastisols are obtained by (a) spray-drying a vinyl chloride homo- or co-polymer dispersion containing an emulsifier by means of a 2-component nozzle using 1À6-5 kg. spraying air per kg. dispersion, and then (b) introducing the spray-dried powder into an air jet, suitably from a propulsion nozzle, having a velocity of 330-550, preferably 380-450, m./sec. at a gas/solid weight ratio of 0À1-5 : 1, preferably 0À2-0À8 : 1.
Patent GB-1057451-A (GB)
Title: Improvements in or relating to apparatus for electroerosion working
IPC: B23H1/02
Filed: 1963-10-10
Abstract: 1,057,451. Spark erosion. INDUSTRIELLE ELEKTRONIC AGIE LOSONE BEI LOCARNO A.G. Oct. 10, 1963 [Oct. 12, 1962], No. 40087/63. Heading B3V. [Also in Divisions G4 and H3] A pulse generator for electro-erosion apparatus comprises a source of pulses, the frequency of which is adjustable by selection of the required number of dividing stages, the mark/ space ratio being adjustable independent of frequency by selection of the outputs on one or more further dividing stages having feedback so as to provide asymmetrical rectangular waves. As shown in Fig. 1, the output of a 1 Mc/s. astable multivibrator 1 having a fine frequency control at la is amplified at 2 and fed to a chain of transistorized binary dividers 3. The output frequency may be adjusted over the range 0À5- 500 kc/s. by selection with switch 4 of the appropriate number of binary dividers 3, the adjustment being used in conjunction with control 1a so as to give continuous control of frequency. The selected output of switch 4 is fed to a chain of bi-stable circuits 6A, 5B ... 5D, the last three having feedback paths so as to provide asymmetrical rectangular waves, one or more of which are selected by means of a switch 8 and a resistor matrix 7. The selected rectangular waves are differentiated and used to trigger a transistorized bi-stable circuit 9 so as to provide pulses the mark/space ratio of which is adjusted by switch 8 over the range 1: 9 to 9:1. The output of unit 9 is selectively fed via high frequency drivers 100 and output stages 102, each comprising a large number of parallelconnected transistors to the erosion electrode 13. An alternative set of drivers and output stages 111, 112 is provided for low-frequency operation. The output transistors (T5 . . . T9. Fig. 3, not shown) are protected against excess current by fuses (S1 . . . S5) and currentlimiting resistors (106). Diodes (D4) provide over-voltage protection in the event of the arc being extinguished during a pulse. Further drivers 101 are provided feeding further groups of output stages 102. A polarity-reversing switch or sinusoidal pulse shaper may be provided.
Patent GB-1132407-A (GB)
Title: Ship's derrick for container handling
IPC: B66C23/60
Filed: 1967-09-01
Abstract: 1,132,407. Ships' derricks. A. E. HALLEN. 1 Sept., 1967 [2 Sept., 1966], No. 40148/67. Heading B8B. A ship's derrick comprises two booms 9, Fig. 1, which are adapted to be swung so as to move a load such as a container 27 horizontally, the booms being parallel and of equal length and having their inner ends pivoted to two fixed points at the same height but spaced laterally and their outer ends pivotally interconnected by a rigid beam 11, the load being supported by at least two suspension devices spaced apart along the beam. The arrangement is such that as the booms swing the beam 11 is forced to remain parallel to a line through the fixed points and the container is therefore maintained in the same orientation. The booms are pivoted to supports 7 carried by a cross-beam 5 on a mast 1 disposed on the deck 2 of the ship. The mast carries an athwartship outrigger 3 from which two topping lifts 13 extend to the beam 11. Each topping lift extends over a leading block 14 which is pivoted to the tip of a swivelling arm 15, Fig. 2, pivotally connected to the outrigger 3. The movement of the arm 15 is limited in the vertical and horizontal directions by wires 16, 17 as described in Specification 1,039,178. From the blocks 14, the topping lifts 13 extend over leading blocks 14a to winch drums 18. The container 27 is suspended by lines 23 from a yoke 21 carried by suspension blocks 19 provided at the ends of the beam 11, and the yoke is raised and lowered by load lines 29 which extend over leading blocks 31, 33 to winding drums 35 disposed on a common axis of a load winch 37. The drums 35 may be replaced by a single divided drum, or the winch 37 and drums 35 may be replaced by separate load winches the drums of which are interconnected by a shaft to obtain equal movement thereof. The blocks 31 may be disposed at the outer ends of the beam 11, the distance between the blocks 33 and the drums 35 being increased to correspond to that between the blocks 31. The supports 7 consist of double joints to permit movement of the booms 9 in both horizontal and vertical directions, see Fig. 4 (not shown). The yoke 21 may be dispensed with the container being attached directly to the blocks 19. A central block for a single load may be provided on the beam 11.
Patent GB-1085755-A (GB)
Title: Hydraulic drop-forging press
Inventor: MULLER ERNST
IPC: B21J9/12
Filed: 1964-10-05
Abstract: 1,085,755. Forging. HYDRAULIK G.m.b.H. Oct. 5, 1964, No. 40537/64. Heading B3H. An hydraulic drop forging press has a main cylinder formed by a forged ring 7 having an internal collar 8 on which the hydraulic pressure acts to press the ring against the adjacent press crosshead 1, the main piston 10 having an extension 11 guided in the crosshead. This construction is intended to resist eccentric loading forces P, E being transmitted to the press frames 3. The piston 10 may be inserted in a piston head 15 carrying the upper platen 17 which is retracted by return rams 13, 14, Fig. 1 (not shown). Upper and lower press crossheads 1, 2 are interconnected by laminated frames 3 engaging shoulders 5 on the crossheads. In another embodiment, Figs. 3-5 (not shown), the press has two parallel main cylinders on the upper crosshead and four laminated frame members, Fig. 5 (not shown). The main cylinder 7 may be disposed above the lower crosshead 2.
Patent GB-953068-A (GB)
Title: Improvements in or relating to frequency converters
IPC: H03F7/00
Filed: 1960-11-25
Abstract: 953,068. Frequency changer circuits; parametric amplifiers. SIEMENS & HALSKE A.G. Nov. 25, 1960 [Nov. 27, 1959], No. 40592/60. Headings H3B and H3F. A frequency converter comprises a circulator having connected thereto a first high-frequency input source, a frequency converter element to which a second frequency lower than the first is applied, a band-pass filter and a high-frequency energy absorber, the connections succeeding each other in the direction of transmission of energy round the circulator and the converter element being matched to the circulator. The Figure shows a circulator 1 having a 6000 mc/s. signal applied via an arm 5 to an arm 6. Arm 6 includes a frequency conversion element 2 and an input circuit 10 by which a 70 mc/s. signal is applied so that side-band components emerge from arm 6 and travel round the circulator to arm 7 where the upper side-band is selected by a filter 3 and passed to load 9. Arm 8 comprises an absorbing load 4 for the unwanted components. The converter element 2 is matched to the circulator by a transformer or by a quarter-wave line and may be in the form of a parametric amplifier of the type described in Specifications 951,310 and 953,067 in which case the 70 mc/s. signal may be generated by selfexcitation in a resonant circuit connected in input circuit 10 and in which an idler circuit absorbs the unwanted side-band.
Patent GB-1107948-A (GB)
Title: Method and device for the protection of a thermionic tube
Inventor: LEBOUTET HUBERT
IPC: G01S7/282
Filed: 1966-09-12
Abstract: 1,107,948. Valve pulse circuits. COMMISSARIAT A L'ENERGIE ATOMIQUE. 12 Sept., 1966 [23 Sept., 1965], No. 40723/66. Heading H3P. In a circuit of the type in which a pulse from a store is applied to an output valve, e.g. a klystron, by triggering a switching valve, the output valve is protected against circuit faults by shunting the store with a discharge device, and applying to the trigger electrode of this device two antiphase pulses which normally cancel out to prevent the device from being triggered. One pulse is derived from the pulse which triggers the switching valve, and the other is derived from the output of the store, so that failure of either one will cause the device to trigger and discharge the store. As described, the store comprises a number of parallel connected capacitors 4<SP>1</SP>, 4<SP>11</SP>, 4<SP>111</SP> which may be discharged by triggering parallel connected valves 80, 82 to feed a pulse to line 2 via transformer 6. The triggering circuit 18 for the valves 80, 82 include a pulse shaping network 90, 92, 94 and in order to maintain the pulse amplitude constant feedback is applied via amplifier 96 from transformer 6. Capacitors 4 are shunted by a spark-gap 52, 54 whose trigger electrode is fed with the input trigger pulse via amplifier 32 and transformer 30 and also with the output of transformer 6 obtained from secondary winding 86. The output line is provided with a limiting circuit 48, 50. The sparkgap 52, 54 may be replaced by an ignition or thyratron.
Patent GB-858037-A (GB)
Title: Photopolymerization of monomers containing vinyl groups by means of silver compounds as catalysts
IPC: C08F4/06
Filed: 1958-12-17
Abstract: A normally liquid or normally solid vinyl monomer is polymerized by irradiating the monomer or mixture of such monomers in the presence of water with radiation of a wavelength ranging from 10-1 to 10-10 cm., such as visible or ultra-violet light, X-rays or gamma rays, utilizing a catalytic amount of a radiation-sensitive, non-oxidizing silver compound as a catalyst, the silver compound being one that does not oxidize under the conditions of the reaction.  The monomer may be acrylamide, acrylonitrile, N-ethanol acrylamide, methacrylic acid, acrylic acid, calcium acrylate, methacrylamide, ethyl acrylate, vinyl benzoate, vinyl pyrrolidone, vinyl methyl, vinyl butyl, vinyl isopropyl or vinyl isobutyl ether, vinyl butyrate, butadiene or mixtures of ethyl acrylate withvinyl acetate, acrylonitrile with styrene or butadiene with acrylonitrile.  The Specification contains a long list of suitable silver compounds; examples describe the use of silver nitrate, silver oxide, silver benzoate, silver sulphamate, silver sulphate, silver acetate and silver benzene sulphinate.  The reaction mixture may contain a small amount of a cross-linking agent such as N, N1-methylene-bis-acrylamide, triallyl cyanurate, divinyl benzene, a divinyl ketone or diglycol diacrylate.  The reaction may be carried out in aqueous or organic solvent solution or in aqueous dispersion in the presence of a dispersing agent. Specification 304,681 is referred to.ALSO:A normally liquid or normally solid vinyl monomer is polymerized by irradiating the monomer or mixture of such monomers in the presence of water with X-rays or gamma rays, utilizing a catalytic amount of a radiationsensitive, non-oxidising silver compound as a catalyst (see Group IV(a)).  Specification 304,681 is referred to.
Patent GB-1118377-A (GB)
Title: Welding reel hub and axle assembly
Inventor: PLOG RICHARD ALLAN
IPC: B65H59/04
Filed: 1966-09-13
Abstract: 1,118,377. Welding by fusion. AIR REDUCTION CO. Inc. 13 Sept., 1966 [13 Sept., 1965], No. 40801/66. Heading B3R. [Also in Division D1] A support for a welding wire reel comprises a hub 20 rotatably mounted on an axle 22 and formed of a single piece of moulded plastic, the hub having a cylindrical portion 26 for receiving the reel divided by slots 34, 36 into resilient fingers 30 having protuberent ends 38 for retaining the reel. The axle 22 is attached at one end to a friction plate 24 frictionally engaging an annular surface of the hub 20 or a braking member or members 46 interposed between the hub 20 and the plate 24. A projection 42 on the hub locates the reel non-rotatably on the hub. The axle 22 has a threaded free end 48 provided with a flat 50 over which is fitted a correspondingly apertured washer 56. A spring 52 between the hub 20 and the washer 56 exerts a braking force determined by adjustment of a nut 58.
Patent GB-1072660-A (GB)
Title: A control apparatus for controlling a fluid-pressure responsive apparatus at a submarine well head
IPC: E21B34/04
Filed: 1964-10-07
Abstract: 1,072,660. Wells &c. HYDRIL CO. Oct. 7, 1964 [Oct. 14, 1963], No. 40962/64. Heading E1F. [Also in Divisions F2 and H2] Components (such as valves, blow-out preventers and connectors) at an underwater wellhead are operated by fluid pressure, the flow of fluid being remotely controlled by electrical means. A marine conductor 15 extending from a vessel is fixed to casing 11 by connectors 40, 41, a manifold chamber 20, an annular blow-out preventer 42, a dual twin-ram blowout preventer 43, and a mud valve 45 being located between the connectors. Fluid pressure is supplied from an accumulator 17 on the vessel by conduits 16 or emergency conduits 21 to control valves (46) .. (53) (Fig. 2, not shown) for each of the components and located in the chamber. An electrical control station 13 on the vessel is connected by a cable 22 to electric motors for each of the control valves and located within the chamber. An electrical circuit (Fig. 3 not shown) for a motor (54) moving the control valve (46) for the preventer (42) has sections 64, 65, 67, 68, the sections (64), (65) being on the vessel and the sections (67), (68) being below the water. The circuits for the control valves of other components are similar, all circuits using a common return line (99). Current flowing through the sections (64), (67) moves the motor and control valve to open the preventer, whilst current flow through the sections (65), (68) moves the preventer to the closed position. The circuit has indicator lights showing the condition of the preventer. The pressure at the valve (46) may be charged to a high or low value by a regulator valve 61 in a circuit (Fig. 6, not shown) similar to the circuit for the valve (46).
Patent GB-1209237-A (GB)
Title: Preparation of pyridines from olefins
IPC: B01J27/192
Filed: 1968-08-27
Abstract: 1,209,237. Pyridines. WARNER-LAMBERT PHARMACEUTICAL CO. 27 Aug., 1968 [28 Aug., 1967; 5 Sept., 1967; 16 July, 1968], No. 40991/68. Addition to 1,134,163. Heading C2C. Pyridines are prepared by passing a mixture of air or oxygen and a C 3  or C 4  olefinic hydrocarbon or a mixture of such hydrocarbons in the vapour phase over an oxidation catalyst consisting of (a) Ni a Fe b Bi c P d Mo e O f  in which a is 3-14, b is 1-3, c is 1-3, d is 1, e is 12 and f is 45-70; (b) Co a Fe b Bi c P d Mo e O f , in which a is 2-7, b is 1-3, c is 1-3, d is 1, e is 12 and f is 45-70; or (c) Ni a Co b Fe c Bi d P e Mo f O g , in which a is 0-12, b is 0-6, a+b is 2-14, c is 1-3, d is 1-3, e 1, f is 12 and g is 45-70; at 225- 500‹ C., introducing ammonia into the gaseous reaction mixture formed, contacting the ammonia-containing gaseous reaction mixture with a condensation catalyst at 250-600‹ C. and recovering the pyridine compounds formed. The preferred condensation catalyst is silicaalumina. Examples are given of the conversion of propylene to pyridine and 3-picoline.
Patent GB-1157148-A (GB)
Title: Control System
IPC: G05D3/14
Filed: 1966-09-14
Abstract: 1,157,148. Automatic pressure control. UNITED STATES STEEL CORP. Sept. 14, 1966 [Sept. 21, 1965], No.41044/66. Heading G3R. Deviation of a variable outside a predetermined dead band causes, through one or other of two bistable magnetic amplifiers, delayed operation of a reversible servomotor which corrects the variable and resets the magnetic amplifier. As applied to maintaining constant the pressure in a header supplying water for spraying a continious steel casting process, a direct current dependent in sense and magnitude on the sense and magnitude of any pressure error is applied to windings 32, 33, Fig. 2, of bi-stable magnetic amplifiers 30, 31 one or other of which operates, if the error exceeds a value determined by the setting of a rheostat R 1 , to energize a delayed relay 35 or 36 and run a reversible A.C. servomotor 21 in the appropriate direction to correct the pressure by adjustment of a valve (not shown). Operation of relay 35 or 36 also applies energization to a winding 37 or 38 so that the magnetic amplifier is reset to stop the servomotor before the error is restored to the dead band to prevent overcorrection. The period of operation of the servomotor is thus dependent on the magnitude of the error. The delay in operation of the relays is such that their next operation cannot occur before the previous operation of the servomotor has become effective on the pressure. In a modification, instead of delayed relays, resistancecapacity circuits are provided to maintain the energization of windings 37, 38 sufficiently long to prevent re-operation of the relays for the required period. In another modification an additional delayed relay causes intermittent operation of the servomotor so that each correction is effected in a number of steps.
Patent GB-894923-A (GB)
Title: Improvements in or relating to caravans or other vehicles
IPC: B60P3/38
Filed: 1959-12-04
Abstract: 894,923. Convertible vehicles. PITT, P. Nov. 29, 1960 [Dec. 4, 1959], No. 41255/59. Class 108(1). A vertically movable roof part 2 is supported on the body 1 of a vehicle by U- shaped frames 4, 5 pivoted together at 6, 7, the gap between the roof parts being closable by fabric sheets 11, 12 secured to U- shaped frames 13, 14 pivoted at one end to the vehicle body. 'An arrangement of pulleys over which an endless cord 22 passes serves to move the frames together or apart.
Patent GB-1386057-A (GB)
Title: Apparatus for permitting discharge of material from a container
IPC: B65G33/00
Filed: 1973-09-03
Abstract: 1386057 Discharging hoppers ZYKLOS METALLBAU KG DIPL-ING KARL HAEGELE 3 Sept 1973 [4 Sept 1972] 41353/73 Heading B8S Apparatus for discharging flowable granular or pulveralent material 32 from a hopper 1 having a rotatably driven discharge device, preferably a screw 3, comprises a sealing disc 14, 15 biased by a spring 20 to close the hopper outlet 18, and connected to a centrifugal arrangement to counteract the force of the spring 20 when the screw 3 is rotated, to permit discharge of the material 32. The screw 3 is driven from a motor 6 through a shaft 7, which fixedly carries an abutment 13, the latter carrying arms 24 apertured at 25 to slidably receive bolts 26 extending from the sealing disc 14, 15, to drive and guide the latter. Chains or weighted cables 21 connect the sealing disc 14, 15 to the abutment 13, and upon rotation of the screw drive assembly, the chains 21 centrifuge outwardly pulling the sealing disc 14, 15 against t he spring 20 to open the outlet 18 or completely counteract the spring closing force whereby the screw easily discharges the material. The screw 3 may have two oppositely coiled sections feeding two similar controlled outlets 18, 29.
Patent GB-1063067-A (GB)
Title: A combined accelerator and brake pedal
IPC: G05G5/03
Filed: 1965-09-29
Abstract: 1,063,067. Controlling motor vehicles. A. F. PASCUAL. Sept. 29, 1965 [April 2, 1965], No. 41423/65. Addition to 1,051,785. Heading B7H. A pedal 1, having an adjustable heel positioning device 7, is pivotally mounted at 2 on a lever 16 and is connected through a cable 9 which passes through a sheath 21 and an adjustment nut 25, to a lever 19 connected to a throttle control mechanism. The lever 16 is connected by links 13, 27 to an hydraulic brake cylinder 23, the arrangement being such that rotation of the pedal 1 in a clockwise direction about its pivot 2 actuates the throttle, while applying force to the pivot 2 whereby the lever 16 rotates in a clockwise direction actuates the brake, during which movement the pedal 1 moves relatively to the lever 16 so as to decrease the tension in the cable 9. A magnet 22 is attached to the lever 16 to hold it in the brake released position by co-operating with an iron base member.
Patent GB-972613-A (GB)
Title: A package for cigarettes or other articles
IPC: B65D75/38
Filed: 1960-12-01
Abstract: 972,613. Packages. ZAVODY V.I. LENINA PLZEN NARODNI PODNIK. Dec. 1, 1960 [April 9, 1960], No. 41435/60. Heading B8C. A package for cigarettes comprises an inner wrapper 1 of metal foil or paper which completely encloses the contents, a resilient frame 2 of synthetic plastic or cardboard and an outer wrapper 3 of transparent material which encloses wrapper 1 and frame 2 and keeps the latter in position around the former. A tear strip 4 enables the top of wrapper 3 to be removed, whereupon the upper portion of frame 2 is movable to allow access to the contents, and a strip 5 reinforces the wrapper. The package is closed by placing tab 8 behind the adjacent side portion of frame 2.
Patent GB-994612-A (GB)
Title: Button stitching machine
IPC: D05B85/00
Filed: 1963-10-21
Abstract: 994,612. Sewing machines. AMERICAN MACHINE & FOUNDRY CO. Oct. 21, 1963 [Oct. 30,1962], No. 41513/63. Heading D1G. In a button sewing machine comprising a button clamp movable from a button-receiving position to a button-sewing position, means are provided for increasing the normal distance between the work and a needle bar to enable the clamp to move freely between said positions where carrying an oversized button. As shown, a button clamp 90 is movable between a substantially vertical, button-receiving position and a substantially horizontal position in which stitching is effected by a pair of alternately reciprocating needle bars 20, 22 and a needle N thereby transferred from one needle bar to the other. The upper needle bar 20 is slidable in a pair of spaced bearings 72, 74, and is connected at 28 to an arm 32 at one end of a sleeve 34 pivoted on a shaft 58. An arm 36 on the other end of sleeve 34 carries a follower roller 38 engaging a cam groove 40 in the face of a rotary cam disc 42. The lower needle bar 22 is similarly mounted and actuated. Button clamp 90 has jaws 92, 94 which open when a lever 111 associated therewith is engaged by an actuating member 112. The jaws are carried at one end of a pivoted shaft 110, the other end of which carries a pinion 114 meshing with a gear sector 116 connected by a link 120 to a lever 122 which carries a follower roller 128 co-operating with a cam 130 on a rotary shaft 132 for moving clamp 90 between the horizontal and vertical positions. Each needle bar comprises an outer tubular shell 21, and a needle clamp 91 carried by a spindle 144 and biased outwardly by a spring 146. Spindle 144 of the upper needle bar 20 passes through the free end 158 of a lever 156 which rests on bearing 72 and is engaged by a washer 148 on spindle 144. A link 166 is pivoted at one end, at 160, to lever 156 and its other end passes through a ball member 174 mounted in a socket 176 fixed to a lever 168 carrying a follower collar 186 engaging a cam 188 on shaft 132. A collar 178 is fixed on link 166 below ball member 174, and a sleeve 182, carried by link 166, is biased by a spring 185 against ball member 174, spring 185 also abutting a collar 170 fixed on link 166. Cam 188 is formed with two rises 190 so positioned that lever 158 is actuated to withdraw the needle clamp 91 within the sleeve 21 of the upper needle bar 20 when the button clamp 90 pivots from the vertical button-receiving position to the horizontal button-sewing position and vice versa. A keyway 192 in cam 188 engages a key 194 on shaft 132 to enable cam 188 to be fixed in adjusted position, by a set screw 196, either in or out of engagement with follower roller 186. Specification 712,548, 900,007 and 966,606 are referred to.