baber/WOPTO huggingface dataset:
Patent GB-1397132-A (GB)
Title: Damping oscillations in a rotary-field electrical motor
IPC: H02P27/06
Filed: 1972-06-29
Abstract: 1397132 Automatic voltage control SIEMENS AG 29 June 1972 [29 June 1971]  30590/72 Heading G3R [Also in Division H2] Hunting oscillations in a synchronous motor(s) 4, Fig. 1, (e.g. hysteresis type driving respective gas centrifuge apparatus) supplied via A.C./D.C./A.C. frequency changer apparatus 1, 2, are damped by an arrangement which controls the output frequency of the f-changer 1, 2 in dependence upon the active power fed to the motor(s) and measured by a unit 10 so as to alter the angular position of the resultant stator field axis of the motor(s) relative to the rotor field axis, to bring it into synchronism therewith.  The arrangement includes a band-pass filter BP, as detailed in Figs. 2 or 3 (not shown), tuned to the hunting oscillation frequency range. The current I w  output from the measuring device 10 is proportional to active power supplied and the filter rejects the D.C. components of this current and residual h.f. harmonics. Positive half cycles of the component of I w  at the hunting frequency fp are due to hunting swings opposite to the direction of motor rotation, and negative half cycles are due to swings in the running direction. The filter output is applied subtractively to a mixing device 17 (e.g. an operational amplifier) together with a desired value reference frequency signal f w  set up on a pot 9. The resulting mixer output is applied via a V/f converter 8 to adjust the frequency changer 1, 2 output frequency. The output voltage of the changer is maintained at a desired value set up on a pot 6 by a feedback loop including an output voltage sensing transformer 7, a comparator and a control unit 5, which controls rectifier 1 in dependence upon the voltage deviation from the desired value as determined by the comparator.
Patent GB-365558-A (GB)
Title: An improved process and apparatus for the cleaning or like treatment of fish
IPC: A22C25/02
Filed: 1930-10-14
Abstract: 365,558. Cleaning and preserving fish. ST. JOHN, G. R., Nunnington, Oakdale Road, Tunbridge Wells, Kent, and BIRD, S., 1, Hallam Street, Marylebone London. Oct. 14, 1930, No. 30659. [Classes 28 (ii) and 49.] Relates to a process for the cleaning and preservation of fish, wherein the fish are placed in perforated boxes or trays through which is passed water, e.g. sea water, which has been subjected to electrolytic action and contains a sterilizing agent t such as sodium hypochlorite. As shown n diagrammatically, the fish are contained in trays g placed in a cage which is carried up and down by sprocket chains h. The trays are thus alternately immersed and withdrawn from the preserving water which is supplied from a main tank a, which contains sea water, through valves f and electrolyzing tanks b obtaining power from a dynamo c driven by an oil engine d. The valves f are preferably opened and closed alternately so that one tank b is used whilst the other tank is being electrolyzed The water is supplied to the treating chamber e through a pipe e<1>, and is withdrawn by a pump k through a, filter l and re-delivered to the treatment chamber through a pipe m. Valvecontrolled. overflows n are provided. The apparatus may be installed in a ship, in which case the upper position of the cage carrying the trays would be aligned with a door j at the deck level to facilitate insertion and withdrawal of the cages. In a modification the trays are housed in. pockets in a rotary drum which is partly immersed in the water. The trays may be immersed in a tank into and from which the water is alternately admitted and withdrawn. Alternatively, a continuous stream of sterilizing water may be passed through the trays. Reference has been directed by the Comptroller to Specifications 23194/14 and 173,285, [both in Class 49, Food &c.].
Patent GB-1530282-A (GB)
Title: Sexual sterilization devices
IPC: A61F6/20
Filed: 1975-07-22
Abstract: 1530282 Clips G M FILSHIE D CASEY V HOUGHTON D F HUBBACK and E M NICHOLSON 10 Feb 1976 [12 Feb 1975 22 July 1975] 6042/75 and 30669/75 Heading E2B A male or female sterilization clamp comprises a strip of metal bent to form jaws 23 at least one of which is provided with a resiliently compressible lining 5, 6 that is preferably provided with a saw-tooth profile. The teeth 8, 9 are arranged at an oblique angle to the transverse axis of the clamp and face towards the clamp hinge area 4. The teeth of the upper and lower jaws slant in opposite directions and intersect each other when clamped together, (see Fig. 3). The lining may be of silicone rubber.
Patent GB-280917-A (GB)
Title: Improvements in closures for bottles
IPC: B65D55/04
Filed: 1927-11-15
Abstract: 280,917. Giampietro, E. Nov. 15, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 18, 1927. Bottles, non-refillable.- In a bottle adapted to give an indication when its closure has been opened, the closure comprising a tubular insert 3 permanently secured in the bottle neck, and a plug 7 fitting within the insert and provided with a member 8 adapted to be separated from the plug when the closure is opened, an elastic split ring 5 engages in grooves in the insert and neck to secure the insert in the neck.
Patent GB-1520116-A (GB)
Title: Apparatus for treating structural honeycomb materials
IPC: B32B3/12
Filed: 1975-07-23
Abstract: 1520116 Cutting apparatus DUFAYLITE DEVELOPMENTS Ltd 19 July 1976 [23 July 1975] 30722/75 Heading B4B Apparatus for treating continuous unexpanded structural honeycomb material comprises rollers 2, 3 for drawing the material in the expansion direction thereof, compressing it perpendicularly to the expansion direction to a second unexpanded state, a guide 4, 5 for receiving the advancing material and guiding it forward in a slightly re-expanded state, and a double acting severing device adapted to be moved across the material by an actuator 31 so as to sever the re-expanded material in forward and return strokes. The material is drawn by the rollers 2, 3 between two conveying guide plates 4, 5 and compressed to a width less than that of a guide 6. The guide is formed from two plates providing a space 20 through which a disc blade 19 passes during cutting. The blade is pivotally mounted on a pair of levers 21, 22 and locked in a set position thereon by a pin 30; as wear takes place the disc is rotated on the lever and the pin inserted into a different hole 19<SP>1</SP>, Fig. 1. The levers are connected to a double-acting ram 27 which moves the disc back-and-forth; a second ram 31 assists the return movement. After a piece (39) Fig. 4 (not shown) of material has been cut it moves between the walls 9, 10 of a guide way 8 and on to a table (45) where it expands between two further guides (9<SP>1</SP>, 10<SP>1</SP>). The cut piece is removed from the table by means of a ram (46) which moves the guide simultaneously with a pivotal movement of the guide (9<SP>1</SP>) about an axis (48). In a modification, Fig. 3 (not shown) the cutting disc 19 is located down stream of the guide way 8, the guide wall 9<SP>1</SP> being pivotally mounted.
Patent GB-174730-A (GB)
Title: Improvements in graphite moulds
IPC: B22C1/00
Filed: 1920-11-01
Abstract: 174,730. Bats, J. H. L. de. Nov. 1, 1920. Mould materials.-Moulds are made of flaked graphite compressed to the desired form in a mould under a pressure of one to two tons per square inch.
Patent GB-1292474-A (GB)
Title: Benzodiazepine derivatives
Inventor: JOMMI GIANCARLO
IPC: C07D243/26
Filed: 1970-06-25
Abstract: 1292474 Benzodiazepines RAVIZZA SA 16 June 1971 [25 June 1970] 30851/70 Heading C2C Compounds of the general formula (R = F, Cl, Br, NO 2 ) are resolved with ephedrine in acetone containing a small percentage of water. The (-) isomer may be hydrolysed to the racemic 3-hydroxy compound, re-esterified and recycled.
Patent GB-1079870-A (GB)
Title: A method of melting a rod of crystalline material zone-by-zone
IPC: C30B13/30
Filed: 1966-07-08
Abstract: A monocrystalline silicon rod is produced from a supply rod of half its diameter by a floating zone-melting process using a pan-cake induction coil in which the recrystallized rod is rotated and shifted laterally to and fro with respect to the supply rod and coil at a speed of 5-20 cycles/min.  The recrystallized rod may be withdrawn upwards or downwards from the molten zone.  The supply rod may also be rotated.  The lateral shift path may be rectilinear or part of a circle.
Patent GB-1081695-A (GB)
Title: Catalysts for olefin polymerisation
IPC: C08F10/00
Filed: 1964-08-04
Abstract: Olefines of formula CH2=CHR1 where R1 is hydrogen or hydrocarbon are polymerized using a catalyst formed by mixing a vanadium compound and an organo-metallic compound RMgX, LiAlR4 or RAAlXB, where R is hydrocarbon, X is halogen, A is 1, 2 or 3, B is 0,1 or 2 and A + B = 3, and subsequently adding an organic nitro compound.  The olefines may be mixtures of ethylene and propylene, or terpolymers of ethylene, propylene and a diene. Examples related to polymerization of (1), (2) ethylene + propylene, (3) ethylene + propylene + dicyclopentadiene; (4) ethylene; (5) ethylene + hexene - 1; (6) ethylene + octene - 1. Other compounds mentioned are butene-1; 4-methylpentane - 1,5 - methylhexene - 1; 4-ethylhexene-1; and for the terpolymers: 1,4-hexadiene; 11 - ethyl - 1,11 - tridecadiene; 1,9 - octadecadiene; 1,5 - cyclooctadiene, methyl cyclopentadiene dimer. Terpolymers may contain 1 to 25% diene, 30 to 80% propylene, the remainder being ethylene.ALSO:A polymerisation catalyst is prepared by a process comprising mixing a vanadium compound and an organo-metallic compound and subsequently adding an organic nitro-compound.  There is at least one halogen atom in the vanadium compound or the organo-metallic compound, and the molar amount of organic nitro compound does not exceed the molar amount of organo-metallic compound.  The vanadium compound may be a halide, oxyhalide, alkoxide, acetylacetonate, alkyl vanadate or alkyl halovanadate.  The organo-metallic compound has the formula RMgX, LiAlR4 or RA AlXB where R is hydrocarbon, X is halogen, A is 1, 2 or 3, B is O, 1 or 2 and (A+B) is 3.  The nitro-compound may be a nitroalkane or nitroarene.  Examples relate to (1), Et3 Al2 Cl3 + VOCl3 + nitrobenzene; (2), Et3 Al2 Cl3 + butyl vanadate and nitroethane or vanadium acetyl acetonate and 2-nitropropane; (3), EtAlCl2 + Et2 AlCl + pervanadyl chloride + nitroethane.
Patent GB-461661-A (GB)
Title: Improvements in or relating to electric head-lamp lighting arrangements for vehicles
IPC: B62J6/00
Filed: 1935-11-09
Abstract: 461,661. Self-contained supply systems. BOSCH AKT.-GES., R. Nov. 9, 1935, No. 31012. Convention date, Nov. 29, 1934. [Class 38 (iv)] Variable-speed generators, with.-In motor cycle &c. lighting systems in which an accumulator is charged from a variable-speed A.C. generator through a dry rectifier, two light sources in the headlamp are supplied, one directly from the generator and the other independently from the accumulator. In the single wire arrangement shown, the two filaments in the bulb 13 of the dipping headlamp 14 are connected to contacts 6, 7 of the main switch so that when the switch is, as shown, in the night running position III, one filament is supplied directly from the alternator 20 and the other independently from the accumulator 15. In position II only the parking lamps 16, 17 are supplied while in position IV for daylight running, alternator 20 charges battery 15 through rectifier 19, overcharging at high speed being prevented by a resistance 18 in parallel with the battery. A switch 21 supplies the electromagnet 22 for dipping the headlamp reflector 14. In a modification, the means for dipping the headlamp is dispensed with, but the long distance filament disposed at the focus of the reflector is cut out by a non-dazzle switch.
Patent GB-856637-A (GB)
Title: Method of blending rubber latex and bitumen
IPC: C08J3/00
Filed: 1957-10-03
Abstract: 856,637. Continuous discharge mixing machines. BENSON, J. R. Oct. 3, 1957, No. 31046/57. Class 86 [Also in Group V] In an apparatus for infusing an aqueous rubber latex within a confined flow of liquid bitumen which is sufficiently hot to flash the latex water into steam, rubber latex is supplied by a line 20 to an atomizing nozzle 22 at a point within the path of hot bitumen flowing through a blending chamber 17, the rubberized asphalt mixture produced moving upwardly past baffles 19, which effect mixing by agitating the flow, into a pipe 18 which is openended to allow steam to escape and the rubberized asphalt to flow into a storage tank 23. A by-pass line 27 from the main bitumen supply line 15 supplies hot bitumen to a nozzle 28 to produce a frothreducing spray into the tank 23 and, if desired, chamber 17 may be surrounded by a jacket through which reheating fluid may be circulated. As shown in Fig. 4 the apparatus may further comprise a nozzle 46 by means of which volatile solvent supplied by a line 44 may be introduced into the flow of rubberized asphalt through a tube 41 connected by line 18C to the chambers 17, whereby cut-back rubberized asphalt is produced.
Patent GB-1173854-A (GB)
Title: Method and Apparatus for Displacing Textile Sliver Cans
IPC: B65H67/04
Filed: 1968-07-01
Abstract: 1,173,854. Coiling slivers. SCHUBERT & SALZER MASCHINENFABRIK A.G. 1 July, 1968 [5 July, 1967], No. 31267/68. Heading D1F. In a drawing frame 1, a can 2 filled with coiled sliver is automatically removed and replaced by an empty can 3. On completion of delivery of a predetermined length of sliver, a motor 4 drives a travelling chain carrying a pin 51 which engages a guide 71 to move a slide 7 so that arms, as at 6 and 61, shift the cans to positions for the next coiling cycle. The motor stops when the pin 51 has passed through a dead centre position I to position II whereat the arms are freed from engagement with the cans: another motor, Figs. 2 and 3 (not shown) is then started to swing the arms upwardly and clear of the cans whereupon the motor 4 runs to return the slide 7 to its initial position and the second motor then stops to allow the arms to fall into their normal position in readiness for the next can-changing operation. In another apparatus Fig. 5, can change is effected by bars 62, 63, rotated about a shaft 64 by a motor 41 driving through a double crank mechanism comprising crank arm, connecting rod 67 and crank disc 65. On completion of the can shift, a spring 57 moves the bars back (a distance T) to a position clear of the cans and carries the crank mechanism beyond its dead centre position, in readiness for the upward swing of the bars and their return movement.
Patent GB-1242017-A (GB)
Title: A gripper for handling heavy products and specifically horizontal-axis coils
IPC: B66C1/32
Filed: 1969-06-20
Abstract: 1,242,017. Tongs for lifting horizontal coils. COCKERILL - OUGREE - PROVIDENCE ET ESPERANCE - LONGDOZ. 20 June, 1969 [20 June, 1968], No. 31268/69. Heading B8H. Coils with their axes disposed horizontally are engaged and lifted by telescopic arms 6, Fig. 1, which are attached to the ends of telescopic arms 10, 14. When the load is lifted the arms 6 extend and rams 26 inside the arms force hydraulic fluid into an accumulator 31. Oil under pressure from the accumulator is used to supply a ram 20 which extends and retracts the arms 10, 14, Fig. 3. The portions 14 are projected by racks 18, 19 and toothed wheels 16 mounted on the portions 10. The ram 20, Fig. 1, is controlled by a valve 35 and a radio-operated switch 36. The two telescopic portions 23, 24 of the arms 6 slide on ball races 27. The device is supported by a pair of plates 3 pivoted at 4 and connected by a bar 1.
Patent GB-795380-A (GB)
Title: Manufacture of stable, anhydrous n:n-alkylene-urea compounds
IPC: C07D203/20
Filed: 1954-10-29
Abstract: Stable, anhydrous N : N-alkylene-urea compounds which correspond to the general formula: <FORM:0795380/IV (b)/1> in which R1 represents an aliphatic or isocyclic hydrocarbon radical containing at least 10 carbon atoms, and R2 represents hydrogen or an aliphatic or aromatic hydrocarbon radical, are produced by reacting an isocyanate of the formula R1NCO with an a ,b -alkylene-imine which may be substituted by an aliphatic or aromatic radical, the reaction being carried out in the absence of water and of organic solvents with maintenance of a temperature such that the reaction mass is in a molten state, if necessary by the application of heat.  The process may be effected by introducing the substantially anhydrous pure alkylene-imine gradually into the isocyanate, while stirring and cooling to a temperature generally below 90 DEG  C.  It is advantageous to carry out the process in the presence of an emulsifying agent which is readily soluble in the fused mass.  It is preferred to use nonionogenic emulsifying agents based on polyglycol ethers, such as a condensation product of oleyl alcohol and ethylene oxide.  1-2 per cent calculated on the quantity of isocyanate used is usually sufficient.  Aqueous dispersions of the products are applicable in processing fibrous material, and organic solutions may be added to dry-cleaning baths to render the goods water-repellent.  In examples: (1) ethylene-imine is added to octadecyl isocyanate with cooling to 50 DEG  C., the mixture is then kept at 70-80 DEG  C. for 2-3 hours, a condensation product of oleyl alcohol and ethylene oxide is added and the melt is then poured on to enamelled sheets and left to solidify; (2) ethylene-imine is added dropwise to dodecyl isocyanate with stirring to give N-dodecyl-N1 : N1-ethylene urea; (4) ethylene-imine is added dropwise to 4-cyclohexylphenyl isocyanate, the temperature rising to 90 DEG  C.; the mixture is further heated for 1 hour to 200 DEG  C. to obtain N-(4-cyclohexylphenyl)-N1 : N1-ehtylene-urea; (5) octadecyl isocyanate is reacted with a ,b -propylene-imine to give N - octadecyl - N1 : N1 - (a ,b ) - propylene-urea.
Patent GB-360171-A (GB)
Title: Improvements in the method of emulsifying or mixing soluble and insoluble substancesand in apparatus employed therefor
IPC: B01F27/91
Filed: 1930-10-20
Abstract: <PICT:0360171/III/1> An apparatus for emulsifying or mixing fatty materials, or for producing synthetic milk, can be suspended in a receptacle containing the materials to be treated, and has rotary propellers which force the materials upwards and outwards through a perforated cylinder.  The apparatus is enclosed in a bell casing a. The wire gauze cylindrical screen b is held between a ring d and lugs n on the plate f by blade springs <PICT:0360171/III/2> h which are connected with pins i resting in the slot j of a bayonet joint.  The plate f supports a bearing q for the shaft r which carries the propeller o at the lower end of the bell a, and an inverted cone s at the upper end.  The materials pass into the apparatus at its lower end and are thrown upwards and outwards by the propeller o; the stream that impinges on the cone s is deflected outwards through the screen b.  The mixed material passes upwards between the screen b and bell a, through the openings p in the top of the bell and is deflected by the plate t into the main receptacle.  A constant circulation is thus maintained.  In a modification two screw propellers are used and the cone s is omitted.  Specification 242,020, [Class 86, Mixing, &c.], is referred to.
Patent GB-280971-A (GB)
Title: Improvements in and relating to sparking plugs
IPC: H01T13/36
Filed: 1927-11-22
Abstract: 280,971. Smits, W. B. Nov. 22, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 23, 1927]. Sparking - plugs. - Pulverized packing 10 is used between the insulation 3 and casing 1. A mixture of 56 parts of aluminium and 44 parts of graphite is suitable.
Patent GB-856267-A (GB)
Title: Improvements in or relating to vehicles capable of travelling in opposite directions
IPC: B62D49/06
Filed: 1958-10-24
Abstract: 856,267. Controlling motor vehicles. SCHLEPPERWERK NORDHAUSEN VEB. Oct. 24, 1958 [July 7, 1958], No. 34174/58. Class 79(5). Control gear for operating a vehicle in opposite directions comprises a pedalrigidly attached to a double lever the ends of which are linked to unidirectional-operating mechanisms. As shown in Figs. 1 and 2, pedals 3 are rigid with double levers 4 pivoted at 2, the ends of each lever 4 being connected to a lever 7 by slotted links 5. The levers 7 are attached to half shafts 10 and 11 which are rigid with segments 16 and 17 respectively and upon which are freely mounted members 14 and 15, from which vehicle - operating mechanisms are controlled. In one direction of travel, the member 14 is connected through the segment 16 to the half shaft 11, and the member 15 through the segment 17 to the half shaft 10. When the direction of travel is reversed, the segment 16 is connected to the member 15 and segment 17 is connected to member 14, the two operating positions being achieved by the provision of alternative holes 9 in each half shaft by means of which it may be connected to the lever 7. In a modification, Figs. 3 and 5, a pedal 20 is connected to a double lever 21, the ends of which are connected by ropes 25 to a rope 27 extending to the hand throttle lever 23 and to a rope 28 extending to a 'throttle control lever 30. The lever 21 is pivoted at 19 to a telescopic tower 1. The lever 30 is fixed to a hollow shaft 29 and the rope 28 passes through a hole in lever 30 and is wound upon shaft 31 passing through shaft 29. Shafts 29 and 31 are normally locked together. Operation of pedal 20 in either direction (according to the direction of travel) operates the throttle control through the levers 30 and 33. At different heights of the telescopic tower 1, the slack in rope 28 is wound upon shaft 29 by rotating this shaft relatively to shaft 30.
Patent GB-885606-A (GB)
Title: Information display apparatus employing electro-optical devices
IPC: G02F1/03
Filed: 1959-09-15
Abstract: 885,606. Monogrammic signs. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 15, 1959 [Sept. 15, 1958], No. 31500/59. Class 118. [Also in Group XL (b)] Apparatus for displaying or recording characters comprises first and second polarizers arranged with inclined axes of polarization, and between which is arranged a rectangular array of electro-optical elements to which voltages can be selectively applied to permit the trans. mission of light from a fixed source through the corresponding areas of the second polarizer to produce the optical form of the desired character on a light-sensitive medium. The arrange. ment may be such that when voltages are not applied to the electro-optical elements, light from the source is normally allowed to be passed by the corresponding areas of the second polarizer, and the application of selective control voltages to the elements prevents light from the source from passing through the corresponding areas of the second polarizer. As shown, light from a constant source 10 is incident on crossed polarizers 12, 16 between which is located an array 14 of thirty-five birefringent electrooptical elements 15, such as crystals of barium titanate to which voltages can be individually and simultaneously applied by conductors 30 from a character decoder which may receive the selecting signals over input cable 46 in the form of code combinations of pulses or pulses of differing frequencies or durations representing the characters. The optical formation of the character passing through the polarizer 16 is projected by a lens 18 on to a mirror 26 of a mirror wheel 20 and thence to a photographically sensitive sheet 24 carried by a roller 52. The mirror wheel 20 which effects letter spacing is stepped for each character by a magnet 44 having a core operating a ratchet 40 on the shaft of the wheel 20, and at the end of a line a tooth 58 engages a wheel 56 on the shaft of the roller 52 to effect line feed. Alternatively the roller 52 and the mirror wheel 20 may be rotated continuously, with the mirrors 26 canted to offset or centralize the inclination of the line of characters due to the continuous movement of the sheet 24. The characters may be projected from the mirror wheel on to a suitable fluorescent or phosphorescent screen providing an appreciable afterglow.