baber/WOPTO huggingface dataset:
Patent GB-1109603-A (GB)
Title: Improvements in or relating to hydrogen peroxide
Inventor: WILLIAMS SELWYN DONALD
IPC: C01B15/013
Filed: 1963-10-30
Abstract: Crude hydrogen peroxide produced in a cyclic process involving the alternate reduction and oxidation of a solution of an alkylated anthraquinone (e.g. l-ethylanthraquinone) in a solvent mixture of at least one hydrocarbon constituent and at least one polar constituent followed by extraction of the hydrogen peroxide into an aqueous phase, is purified by treatment of the aqueous phase with at least one organic solvent mixture, e.g. in countercurrent at 20-25 DEG  C., which contains at least one hydrocarbon constituent and at least one polar constituent, e.g. in a volume ratio of at least 0.7 : 1 and the purified aqueous hydrogen peroxide solution is separated from the organic solvent mixture.  The volume ratio of solvent mixture to crude hydrogen peroxide may be 1 : 1 to 1 : 200.  The solvent mixtures may be derived from the cyclic process, e.g. from the oxidizer effluent line, and the crude H2O2 may be subjected to two treatments with 2 solvent mixtures, the first having hydrocarbon : polar solvent volume ratio of 0.9 : 1 to 1.2 : 1 and the second a ratio of at least 2 : 1.  The two mixtures may be derived by condensation in the oxidizer effluent (volume ratio 1.5 : 1) and from the carbon absorption beds (volume ratio 4 : 1).  Hydrocarbon constituents are xylene or mixtures of aromatic hydrocarbons (b.pt. > 145 DEG  C. or b.pt. > 185 DEG  C.), higher alkanes (C7-C10) or cyclohexane.  Polar constituents may be methyl cyclohexyl acetate, diisobutyl-carbinol or decanol.
Patent GB-1319126-A (GB)
Title: Coin impeller
IPC: G07D3/00
Filed: 1970-09-08
Abstract: 1319126 Testing coins MARS Inc 8 Sept 1970 [16 Sept 1969] 43014/70 Heading G4V A coin passes through an arrester and arrives at an impeller 80 where it serves as the armature of a linear motor whose four coils 82, 84, 86, 88 are energized in an out of phase relationship, to produce a travelling magnetic field, by the use of A.C., alternate windings, and parallel circuits one of which comprises a capacitor 104. An electromagnet 106 and a weak permanent magnet 108 retard the coin which passes to a discriminator 20 where the trajectory of the coin is examined. As shown a start control 26 energizes the electromagnet 106 and impeller 80 for a prescribed time interval upon the arrival of a coin at a sensor adjacent the impeller. Any ferro-magnetic coins will be held by the impeller 80 when magnetized and will later pass under residual magnetism to the weak magnet 108 which provides sufficient retardation to cause the discriminator 20 to reject the coin. A coin support 12 may be formed with a slope of up to 5 degrees so that non-magnetic coins may roll through the apparatus at a velocity causing them to be rejected by the discriminator 20. Instead of a linear motor, a rotor fitted with electromagnets and rotated after activation of the start control may form the impeller. In a further embodiment, Fig. 1 (not shown), a rotor (16) fitted with three permanent C-shaped magnets impels the coin and a permanent magnet (18) causes retardation. In this latter embodiment or in the former embodiments, if the electromagnets are permanently energized, a scavenger (15) preferably extracts ferro-magnetic coins before they reach the impeller, and the weak magnet 108 may then be dispensed with.
Patent GB-1076479-A (GB)
Title: Oil circuit breaker
IPC: H01H33/75
Filed: 1964-10-22
Abstract: 1,076,479. Oil blast switches. ALLM€NNA SVENSKA ELEKTRISKA A.B. Oct. 22, 1964 [Oct. 24, 1963], No. 43057/64. Heading H2B. The explosion pot 3 of an oil blast switch contains a gas-filled chamber 12, below the level of the contacts 5, 7, in which the gas is compressed by the pressure set up by the arc and then, when the contact rod 5 has moved out of the pot 3, expands to drive oil through passages 11, 10, 4 to extinguish the arc.
Patent GB-1071652-A (GB)
Title: Polymeric compositions
Inventor: MAY HERBERT
IPC: C08G2/00
Filed: 1962-11-14
Abstract: Trioxan with or without at least one comonomer, is polymerized under anhydrous conditions in the presence of a catalytic amount of an iodonium or bromonium tetrafluoroborate. The catalysts may be used in the form of the free ionic species, e.g. diphenyl iodonium tetrafluoroborate or solvated, e.g. with nitroethane. The polymerization may take place in an inert liquid medium, e.g. cyclohexane or n-hexane, the catalyst being, e.g. dissolved in nitroethane, and an inert atmosphere, e.g. nitrogen and/or carbon dioxide being used.  The product may be stabilized with, e.g. bisphenols, amines, benzophenones, hydrazines, ureas, thioureas, phenols, polyamines, polyamides, polyurethanes, polyureas, polyacrylamides and polypeptides.
Patent GB-870902-A (GB)
Title: Improvements relating to cutting, drilling or boring tools
Inventor: RANSOM ROBERT BREWSTER
IPC: B23B51/02
Filed: 1959-12-18
Abstract: 870,902. Drills and cutters. NORFOLK PRODUCTS CORPORATION. Dec. 18, 1959, No. 43102/59. Class 83 (3). A boring-tool for cutting an annulus around a hole in a fibrous material e.g. wood, to prevent splitting of the wood during the insertion of a wood screw, comprises a body 35, Figs. 4, 5, having a segmental cutting edge 37 forming faces 40, 41 and a face 39, for limiting the depth of cut. A drill 28 having a barb 92 for removal of the cuttings, drills a hole in the wood for the screw, and the cutting edge 37 cuts the annulus. If pressure is applied to the tool, the material is compressed except in the space 36, and the face 40 or 41 removes the material on rotation of the tool. The cutting edge may have a number of spaces 36, and may be modified to include two cutting edges 82, 83, Fig. 14.
Patent GB-1151848-A (GB)
Title: Thermal Print Head.
IPC: H01L27/02
Filed: 1966-09-27
Abstract: 1,151,848. Selective printing; printing processes. TEXAS INSTRUMENTS Inc. 27 Sept., 1966 [1 Oct., 1965], No. 43149/66. Headings B6C and B6F. Machines wherein characters are formed by a number of separate elements.-A thermal print head comprises an array of semiconductor mesas arranged so that selected ones may be energized by an electrical current to form characters by heating a resistor within each mesa. The print head is formed from a single crystal semi-conductor material 10, Fig. 3, such as silicon and the top surface is masked and etched to form a pattern of raised mesas such as 40, 41, 45. This is coated with silicon carbide 60 deposited by a horizontal or vertical resistive or inductive coil heated furnace tube (70), Fig. 7 (not shown). A layer 61 of material, e.g. polycrystalline semi-conductor material is now deposited over the top surface and the original material 10 is lapped so that only the parts 40, 41, 45 inside the mesas remain. Into these parts diodes (D40, D41) and resistors (R40, R41) are formed. The P-type diffused regions, Fig. 6, provide the anodes for the diodes and provide the resistors. The N-type material of the mesas 40, 41 provide the cathodes of the diodes (D40, D41), contact being made through low resistivity N+ regions. Electrical connections are formed in the region 45 not containing the printing mesas. There are connections in two directions at right-angles to one another, 30a, 31a, 32a connecting mesas in vertical columns and (52, 53, 54) in the horizontal rows. The mesas are then stuck by an adhesive 68 to a substrate 20 and the polycrystalline semi-conductor 61 is removed to isolate the thermal areas 40, 41, 45.
Patent GB-1452366-A (GB)
Title: Rubber articles having improved slip coating
IPC: B29C41/22
Filed: 1974-10-04
Abstract: 1452366 Slip-coated rubber surface SUTURES INC 4 Oct 1974 [12 Oct 1973] 43163/74 Heading B2E [Also in Division A3] A rubber surface, particularly that of a glove or girdle, is provided with a slip coating by application of an aqueous resin latex comprising 5-90% by weight of a copolymer of an alkyl acrylate or methacrylate with vinyl chloride, vinylidene chloride or vinyl acetate (the copolymer including 10-90 mole % of acrylate or methacrylate units) and 95-10% of a copolymer of a vinyl ester of a C 2-4  monoacrboxylic acid with 90-10 mole % of vinyl chloride or vinylidene chloride. Each copolymer may also comprise up to 5 mole % of acrylic or methacrylic acid units and up to 5 mole % of plasticisers. The rubber surface may be of natural rubber or polychloroprene, polyisoprene or styrene-butadiene rubber. A surgeon's glove to be provided with the coating may be prepared by placing a clean glove form in an oven at 190‹F for 20 minutes, dipping the form into an isopropanol solution of Ca(NO 3 ) 2  (coagulant) and diatomaceous earth (release agent); immersing the thus-treated form in natural rubber latex; and then leaching, heating and removing the rubber glove. The glove may then be dipped in the aqueous resin latex.
Patent GB-1400546-A (GB)
Title: Driving system for electric car
IPC: B60L13/00
Filed: 1972-09-18
Abstract: 1400546 Automatic control of speed HITACHI Ltd 18 Sept 1972 [20 Sept 1971] 43220/72 Heading G3R [Also in Division H2]  A driving system for an electric car comprises a linear motor with the primary winding 4 disposed along a track and a secondary winding 7 on the car which supplies power to a motor 9 through controllable power converting means 8. The car 2 is supported by wheels (3) on a track (1) along which is disposed iron core 6 and winding 4 supplied with A.C. power by lines (5). The motor 9 is shown as a D.C. motor driving the wheels (3) and a tachogenerator 12, whose output is connected to control windings on two magnetic amplifiers 14, 17, a reference speed signal being applied through a terminal 13 to another control winding of amplifier 14 and a biasing input being applied through a terminal 16 to a second control winding of amplifier 17. The output of amplifier 14 is proportional to the difference between actual and reference speed signals and is applied to a control winding (N c ) of a phase shifter 15 which controls the power converter 8 and therefore the speed of the motor 9. The output of the second magnetic amplifier 17 drives a motor 112 varying a resistor 111 in series with the field of motor 9 and a resistor 114 which provides a feedback current signal to complete the servo loop. The field of motor 9 is weakened by this means to increase its speed and the bias on terminal 16 determines the operating point. Amplifier 14 controls the starting of the motor 9 and its acceleration up to the reference speed and amplifier 17 then accelerates it until the vehicle is floating and is being driven by the linear motor.  Charging batteries. An auxiliary battery 101 is charged from the secondary 7 over controlled rectifiers 102 when the linear motor is effective.
Patent GB-1067346-A (GB)
Title: Novel seco-steroid compounds, processes for preparing them and compositions containing them
IPC: C07D295/096
Filed: 1964-10-08
Abstract: Novel 20 - acyloxy - 4,5 - seco - 19 - norpregn - 9,11 - diene - 3,5 - diones of the general formula <FORM:1067346/C2/1> wherein R1 is an acyl group, are obtained by reacting a corresponding 3-chloro-20-acyloxy-4,5 - seco - 19 - nor - pregna - 2,9,11 - triene - 5 - one with an acid, so as to obtain, by hydrolysis the desired 3-one.
Patent GB-1186125-A (GB)
Title: Electrically Controlled Photographic Camera Shutter.
IPC: H05B41/32
Filed: 1968-09-13
Abstract: 1,186,125. Photo-electric control of shutters. KONISHIROKU PHOTO INDUSTRY CO. Ltd. Sept.13, 1968 [Sept.27, 1967], No.43768/68. Heading G2A.  A camera has a shutter controlled by the light reflected by the subject from a flash discharge tube V 1  to a photo-voltaic cell P, a trigger signal being produced to close the shutter blades and to turn on a semi-conductor switching element SCR which by-passes the current flow in the discharge tube used for exposure. A solenoid M is energized to open the shutter blades and de-energized to close them. When the shutter release is operated switch S 1  closes and S 2  opens, the electromagnet M being energized through conducting transistor T 4 . Synchronizing contacts S y  are closed by the shutter release, and a voltage pulse induced through L1 to trigger flash discharge tube V 1  into a discharge condition. The light reflected on to P produces a current flow in the collector path of transistor T 1  proportional to the illumination and integrating capacitor C 1  commences to charge. Film sensitivity resistor R 1  determines the firing point of transistor T 2  which produces a trigger signal to turn transistor T 3  on. The potential at point B thus falls so that T 4  is turned off to de-energize M and SCR is triggered to conduct and discharge C 4  through L 2 . Discharge tube V2 thus starts to discharge and since V 2  has a substantially lower impedance than V 1 , the current flow through V 1  is effectively by-passed, the flash of light energy illuminating the scene thus being terminated. The mechanical time lag involved in the returning motion of the shutter blades thus has no influence upon the exposure of the film. A separate diaphragm may be disposed before the photo-voltaic cell and controlled by inter-locked operation with the diaphragm of the objective.
Patent GB-1509828-A (GB)
Title: Sheet material coated to simulate foamed polypropylene
IPC: B41M3/00
Filed: 1976-10-22
Abstract: 1509828 Coating paper to simulate foamed polypropylene AMERICAN CAN CO 22 Oct 1976 [3 Nov 1975] 43892/76 Heading B2E Sheet material simulating the appearance of foamed polypropylene is prepared by coating one surface of white paper of reflectance optical density less than 0.12 with pearlescent ink of optical density 0.1 to 0.2 and overcoating with a mottled pattern of dark ink so as to increase the optical density by 0.01 to 0.07 over that of the pearlescent coating. The area overprinted is between 30 and 75% of that of the pearlescent ink and the greatest diameter of the individual elements of the pattern is 0.2 to 1.5mm.
Patent GB-987019-A (GB)
Title: Improvements in or relating to the filling of containers with gas
Inventor: WADDINGTON JOHN NIGEL
IPC: F17C5/06
Filed: 1962-11-21
Abstract: 987,019. Filling containers with gas. SAUNDERS-ROE & NUCLEAR ENTERPRISES Ltd. Oct. 25, 1963 [Nov. 21, 1962], No. 43983/62. Heading FIN. [Also in Division F4] An apparatus 10 for filling containers 5 with gas to a pressure in excess of a source B, comprises a reservoir 2 connected through a shut-off valve 3 to a side arm 7, the side arm being arranged to collect gas in contracted form, whereby on closing the shut-off valve 3, the gas is allowed to expand and fill the containers 5. The gas is caused to collect in the side arm 7 by cooling the arm, by for example, immersion in liquid nitrogen. Alternatively the side arm 7 may be filled with a material that absorbs gas at one temperature and desorbs it at another e.g. pyrophoric uranium which absorbs tritium at ambient temperature and desorbs it when heated. The arm 7 may be omitted from the system and the containers 5 cooled instead. A suction unit A and a collector C having associated shut-off valves E, F are provided for evacuating the apparatus 10.
Patent GB-936593-A (GB)
Title: Cargo vessel
IPC: B63B25/02
Filed: 1959-12-28
Abstract: 936,593. Screw-conveyers for discharging vessels. R. P. T. Z. PATCO Inc. Dec. 28, 1959 [April 6, 1959], No. 44046/59. Class 78 (4). [Also in Group XXXIII] The bottom of the dry cargo space, in a combined dry and liquid cargo vessel (see Group XXXIII), is defined by the cofferdam 60, 62 whose sides are disposed at angles so as to be self-clearing. A trough 72 in the lower port of the space houses a screw-conveyer for removing the cargo.
Patent GB-1073705-A (GB)
Title: Blow molding of thermoplastic material
IPC: B29C67/00
Filed: 1964-10-29
Abstract: 1,073,705. Blow-moulding apparatus. DOW CHEMICAL CO. Oct. 29, 1964 [Nov. 13, 1963], No. 44119/64. Heading B5A. In a process for blowmoulding hollow articles of thermoplastic material, the blowing nozzle defines an extrusion passage within the blow mould and is rotated in contact with the thermoplastic material, whereby multidirectional orientation is imparted to the molecular of the material. In the first example, Fig. 2, a slug formed outside the blow mould is introduced into the bore of a reciprocable tube 20 having a plunger 24. The rotating plunger is brought down to define the extrusion passage 1 through which the material is extruded on downward movement of the tube 20. In another example, the slug is formed by injection in the bore of a piston member which moves down with the blow plunger so that a plunger n the bore effects the extrusion into the blow mould. In another example, the blow plunger (102) is fixed axially and the piston (92) moves upwardly within the blow mould (90) as extrusion is effected by the plunger (98). In another example a slug is formed by impact moulding of granules in a bore (134) of a piston (132) which moves upwardly within the blow mould (130). The slug may be impact moulded in and extruded from a bore in a wall of the blow mould.
Patent GB-1055480-A (GB)
Title: Weapon mountings
IPC: F41G1/40
Filed: 1964-11-02
Abstract: 1,055,480. Gun mountings. W. RUF. Nov. 2, 1964 [Dec. 5, 1963], No. 44579/64. Heading F3C. A support for light weapons, particularly machine guns, combined with a telescopic sight and mounted on the roof of a vehicle is rotatably and tiltably mounted on an insert 5 adapted to be placed in an aperture provided in the roof. The support 11 is tiltably mounted by pivot 10 on a carrier 7 which is rotatably mounted in the insert, and a rod 12 passes through the insert and enables the support 11 to be tilted by an operating member 13. A telescopic sight 15 in the form of a periscope extends through the insert and is pivoted at 16. The sight is pivotally connected to the support 11 by a bar 17 which extends parallel to the line joining pivots 10, 16 to ensure that the optical axis of the sight is always parallel to the bore of the weapon. The carrier is provided with a lever to enable it to be rotated, which lever (or the operating member 13) may be provided with a firing lever connected to the trigger of the weapon by a cable.
Patent GB-1280416-A (GB)
Title: Partition structure for a container
IPC: B65D5/49
Filed: 1970-09-18
Abstract: 1280416 Carton partitions CONTAINER CORP OF AMERICA 18 Sept 1970 [22 Sept 1969] 44708/70 Heading B8P A cut and scored blank, Fig. 2, when folded, forms a partition 10 dividing a container C into four compartments. In another embodiment (Fig. 12, not shown) six compartments are provided in the container. The blank, Fig. 2, has fold lines 11, 12, 18 and slits 13, 14, 16, 17. The central area A may be circular if slits 16, 17 are arcuate or may be eliptical or in the shape of a quadrilateral. To form the partitions, the blank is folded along lines 11, 12 and panels II IV are rotated to slide past one another, the slits 16, 17 may provide friction surfaces to maintain the partition erect.
Patent GB-1533115-A (GB)
Title: Plant containers
IPC: A01G27/00
Filed: 1975-10-31
Abstract: 1533115 Self watering plant pots M L HAGERTY 31 Oct 1975 [8 April 1975] 45129/75 Heading A1E A plant container is divided by a perforated screen 34 into a part 38 for growing medium and a reservoir 36 provided with a filling tube 18. The level of liquid in the reservoir is indicated by a rod 22 having a float 20 and slidable in the tube 18. A wick 16 transmits water to the growing medium, and the roots of a plant may grow through the screen 34 into the water.
Patent GB-1193379-A (GB)
Title: Textile Machine for processing Textile Fibre Slivers and Delivering them into Cans, more particularly a Draw Frame provided with a Storage Gallery for Empty Cans
IPC: B65H49/24
Filed: 1968-09-23
Abstract: 1,193,379. Processing textile slivers. SANT' ANDREA NOVARA OFFICINE MEOCANICHE E FONDERIE S.p.A. 23 Sept., 1968 [26 Sept., 1967], No 45181/68. Heading D1F. A 'textile machine comprises a creel 2 for suppling textile fibre sliver to processing means, the creel carrying bobbins 3 or sliver cans, processing means 1, e.g. a draw frame, and delivery means 8 for receiving sliver from the processing means 1 and placing it in a can 7' of appropriate dimensions, and is characterised in that the processing means 1 and the creel 2 are formed with a longitudinal passage 5, 6 adapted to be passed through by empty cans 7 supplying the delivery means 8. A conveyor belt 10 is preferably situated in the passage portion 6 for intermittent advance of the empty cans. A device 12 is provided in the passage portion 5 for the removal of a full can and the replacement with an empty can at the delivery means. The device 12 comprising three oscillating arms connected to a common bar 14, the bar 14 performing horizontal reciprocating movements to shift the cans. The arms oscillate vertically between the cans. More than one row of empty cans may be disposed in the passage 5, 6. In the event of the passage being empty of cans, an automatic safety device stops the machine and the can moving means.
Patent GB-1128682-A (GB)
Title: Improvements in buoys
IPC: B63B22/02
Filed: 1964-11-06
Abstract: 1,128,682. Buoys. N. GARLAND. 8 Nov., 1965 [6 Nov., 1964], No. 45446/64. Heading B7A. A mooring buoy comprising a box-shaped float 1 rectangular in plan with flat bottom and top plates 23, 22 and divided internally into water-tight compartments, has mid-way of the central horizontal plane of the float a tubular fixed housing 11 inclined at an acute angle (e.g. 14 degrees) to the horizontal and extending at the bottom end into a lower rectangular-shaped housing 12 which has an opening in the bottom plate 23, the upper end of the housing 11 opening into an upper housing 13 opening into the top plate 22 and extending into a vertical recess 15 in the wall of the float, said housings having mounted therein a load carrying mooring system consisting of a fixed arm 3 in the inclined housing 11, a swinging arm 2 pivoted to the fixed arm at 4, being guided by the housing 12 to swing in a vertical plane, and a mooring hook device 8 pivoted to the arm 3 at 6. The pivot 4 of the swinging arm is off-set from the vertical centre line of the buoy float.
Patent GB-1167853-A (GB)
Title: Spark Erosion Apparatus
IPC: B23H1/02
Filed: 1966-10-13
Abstract: 1,167,853. Spark erosion. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 13 Oct., 1966 [16 Oct., 1965], No. 45797/66. Heading B3V. [Also in Division H3] In a spark erosion apparatus using a working capacitor 15, means 16 are provided to delay recharging and thus prevent formation of an arc discharge. Capacitor 15 across gap 13, 14 is charged through inductor 16 and resistor 17 from a charging capacitor 12. During initial recharging of capacitor 15, a sinusoidal voltage is set up in the gap. Capacitor 12 is charged from a D.C. supply 1 through thermionic valve 2 and adjustable cathode resistor 9. The grid of valve 2 is controlled by valves 3, 4 biased by resistors 10, 11. During charging, the voltage drop increases across resistors 10, 11 until valve 3 conducts whereby its anode voltage drops, diode 6 conducts and valve 2 is cut-off. Upon discharge, recharging of capacitor 15 is delayed by inductor 16. The charging current is controlled by resistor 9 and the voltage across capacitor 12 is controlled by variable resistor 11. Component values are given.