baber/WOPTO huggingface dataset:
Patent GB-1320678-A (GB)
Title: Reactor
IPC: B01F7/00
Filed: 1971-07-21
Abstract: 1320678 Mixing apparatus; polymerisation reactor KURARAY CO Ltd 21 July 1971 [25 July 1970] 34225/71 Headings B1C and B1X A continuous reactor comprises a chamber 1 having in its lower part a rotor 2 having at least one agitator-scraper blade 4 parallel to but spaced from the axis of rotation and at least one helical or part-helical coaxial plate 3 secured to the agitator blade, there being no shaft extending along the axis adjacent the agitator blade 4. As shown the rotor is supported in stub shafts 6, 6' as the chamber has an inlet 7, product outlet 8 and vent 9 for removal of volatiles under reduced pressure. The apparatus is intended for use with processes in which the product (e.g. polyethylene terephthalate is more viscous than the reactants; the helical plates may then be progressively more widely spaced towards the outlet.
Patent GB-1270416-A (GB)
Title: An improved method and apparatus for determining blood clotting time
Inventor: UNGER HANS PETER OLOF
IPC: G01N33/49
Filed: 1969-07-07
Abstract: 1,270,416. Determining blood clotting time. H. P. O. UNGER. 7 July, 1969, No. 34233/69. Heading G4H. [Also in Division G1] In an apparatus for determining the clotting time of a blood sample with which a reagent has been mixed, which apparatus is adapted to periodically tilt a container containing the mixture to a position in which the mixture if still fluid will cause a pulse to be produced, a timer started when the reagent is added is stopped automatically upon detection of a change in the pulsating output of the detector. In the form shown an elongated block 25 which extends in a direction normal to the plane of the figure and holds a plurality of sample tubes 13 in recesses is stepped in a direction along its length to bring the tubes one by one into the path of light between a source 15 and photocell 16 both mounted on a second block 10. Between each step of the block 25, a selfreplenishing syringe-type pipette 19 drops a quantity of reagent (such as a thromboplasticcalcium solution) into the blood sample already in the tube in the light path, starts a timer in the form of a counter-printer 20 driven by clock pulses, and energizes a mechanism to rock the assembly comprising the blocks 10 and 25, the tubes 13, the source 15 and the detector 16 repetitively from the position shown to a position in which the tubes are inclined along the direction 30. For each rocking movement, the mixture if still fluid flows into the light path producing an output pulse. The resulting pulsating output is fed to a threshold detector. The square wave output from the threshold detector is fed to a gating circuit which terminates advancement of the timer when the pulse train ceases, becomes delayed in phase or changes in unspecified manner due to clothing of the mixture. When this occurs the assembly is rocked once in the other direction to cause the printer to print the time taken to clotting to be printed on a card 29 in a holder 28 on the block 25. The timer is reset and the block 25 stepped to repeat the above for the next sample. The tubes may be of plastics material and may be coated internally with a hydrophilic substance such as polyoxyethylene sorbitan monooleate.
Patent GB-1433743-A (GB)
Title: Toothpastes
IPC: A61P1/02
Filed: 1972-07-21
Abstract: 1433743 Clear toothpastes UNILEVER Ltd 18 July 1973 [21 July 1972] 34358/72 Heading ASB A visually clear toothpaste contains a synthetic hydrated precipitated silica, free of aluminium, as a polishing agent and a liquid phase of substantially the same refractive index as the precipitated silica.
Patent GB-1106819-A (GB)
Title: Improvements in or relating to electrotechnical glass
Inventor: KUTATELADZE KALISTRAT SEVERJAN
IPC: C03C3/087
Filed: 1965-08-11
Abstract: A glass for use in insulators consists essentially of, in parts by weight, SiO2 44.5-55.0, Al2O39.6-17.0, Fe2O3 7.0-13.5, TiO2 0.4-0.7, MnO 0.7-18.0, CaO 7.0-17.0, MgO 3.2-8.6, SO3 0.1-0.3, and 1.78-4.0 of alkali metal oxides.  The glass is made by melting a batch consisting of, in parts by weight, 100 of a silicate rock, containing 7 to 14 parts by weight of iron oxides, 0-20 of a manganese ore, 0 to 12 of chalk, 0 to 8 of dolomite.  The silicate rock may be diabase, syenite, basalt, sand or andesite.
Patent GB-942122-A (GB)
Title: A surgical instrument
IPC: A61B17/115
Filed: 1962-09-11
Abstract: 942,122. Suturing appliances. M. G. AKHALAYA, V. S. KASOOLIN, G. V. ASTAFIEV, S. I. BABKIN, A. N. BURTSEV, T. V. KALININA, and G. I. TATISHVILI. Sept. 11, 1962, No. 34652/62. Heading A5R. A suturing instrument for joining together tissue, such as the cut ends of the oesophagus, has means for gripping annular areas of the tissue face to face, a knife for cutting a circular opening and means for inserting a ring of staples around the opening. The portions of tissue are gripped between a head member 15 and the end of the tubular body 1 by drawing the two together by a nut 20 threaded on the end of a central rod 16 carrying the head. A handle 7, pivoted at O, is then gripped and its upper end 7<SP>1</SP> presses a sleeve 5 forward. The latter carries a circular knife blade 6, which cuts the tissue against a resilient insert 17, and a cylindrical pusher member 4a which presses staples out from slots 3, around the end of the body 1, so that they pass through the tissue and are bent round by a suitably shaped groove 15<SP>1</SP>. In operating on the oesophagus, for example, the head of the instrument is introduced through a lateral incision previously made in the duct.
Patent GB-386421-A (GB)
Title: Improvements in or relating to ground-anchorage pegs
IPC: E04H15/62
Filed: 1931-12-15
Abstract: 386,421. Ground anchorage pegs. SALT, J. and SALT, F., 29, Ladywood Road, Birmingham. Dec. 15, 1931, No. 34706. [Class 45.] A ground-anchorage peg is made from a metal blank which is pressed to form a trough, channel or angle section and one or both its edges is formed into a sinuous, stepped or corrugated shape g. The head e is formed by slitting the upper end of the blank and turning over the lugs formed.
Patent GB-992804-A (GB)
Title: Colored optical elements
IPC: C09C1/00
Filed: 1961-09-27
Abstract: 992,804. Light filters. MEARL CORPORATION. Sept. 27,1961 [Oct. 6, 1960], No. 34747/61. Heading G2J. Light transmitting platelets have parallel smooth surfaces an index of refraction of at least 1. 7, uniform thickness such that at least 80% of the area does not differ by more than 10% of the average platelet thickness and a multiplication product of thickness in millimicrons and refractive index not greater than 2000. The platelets may be dispersed in a transparent medium having a refractive index between 1. 4 and 1. 65 to form filters. The platelets may be formed from lead hydrogen phosphate, lead hydrogen arsenate, basic lead carbonate, bismuth oxychloride, mercurous formate, zinc phosphate, cytosine, or DL-tryptophan. U.S.A. Specifications 2;311,533 and 2,950,981 are referred to.
Patent GB-1159582-A (GB)
Title: Control of Strip
Inventor: NICHOLSON GEORGE GALLOWAY
IPC: B21B37/54
Filed: 1965-08-13
Abstract: 1,159,582. Rolling metals. DAVY & UNITED ENG. CO. Ltd. 5 Oct., 1966 [13 Aug., 1965], No. 34760/65. Heading B3M. [Also in Division G1] Rollers 14, driven by a motor M and drawing strip material off a coil 21, are automatically decelerated at a constant rate f when a relay 43 is operated by a circuit including a tachogenerator 17 measuring linear strip speed V, and a rotary potentiometer 27 mechanically coupled to an arm 21 measuring the radius r of the coil 12. The thickness h of the strip may be measured or calculated from radius and speed measurements, and it is shown that if the roller 13 carrying the coil 12 has a radius r 0 , then for the strip velocity V to be zero as the end leaves the roller 13 it is required that The r<SP>2</SP> signal is obtained from a squarer 30, and supplied to a summing amplifier 32 together with a signal obtained from a decade switching circuit 37, which receives a fixed deceleration signal f, a thickness signal h, and a V<SP>2</SP> signal from a second squarer 33 driven by the tachogenerator. The output of amplifier 32, representing is compared at 40 with a set r<SP>2</SP> 0  signal, and a zero output from the comparate 40 operates the relay 43 to initiate deceleration.
Patent GB-1202402-A (GB)
Title: Method for the purification of trichlorosilane
IPC: C01B33/08
Filed: 1967-07-28
Abstract: 1,202,402. Trichlorosilane; silicon. TEXAS INSTRUMENTS Inc. 28 July, 1967 [6 Oct., 1966], No. 34824/67. Heading C1A. In the purification of trichlorosilane containing as impurity a thermally unstable phosphorus compound, e.g. diphosphine less volatile than, but decomposable into a compound, e.g. phosphine more volatile than trichlorosilane, liquid trichlorosilane is heated to just below its boiling point (31.8‹ C.), the temperature differential between the heating means and the trichlorosilane being maintained sufficiently small, e.g. 0À5-10%, to prevent decomposition of the impurity, and purified trichlorosilane vapour is removed from the liquid phase. The vapour may then be reduced by H 2  to silicon in a furnace or, alternatively, condensed. A purer product is obtainable by discarding the first 5-25% of condensate, or by removing 5-25% of the trichlorosilane from the top of a distillation column through which it is passed prior to the main purification step. The latter may be effected by distillation, e.g. at 1-4 ats., from a water-heated quartz flask connected to a cooled polytetrafluorethylene bottle, or by distillation in a steel tank divided by a weir into respective heated and cooled chambers. The vapour may be swept from chamber to chamber by an inert gas, e.g. N 2  or argon.
Patent GB-913673-A (GB)
Title: Pneumatic cleaning system for a textile ring spinning machine
IPC: D01H11/00
Filed: 1960-10-12
Abstract: 913,673. Cleaning spinning-machines. RIETER & CIE A.G., JOH. JACOB. Oct. 12, 1960 [Oct. 23, 1959], No. 34965/60. Class 120 (3). A ring spinning machine having two parallel spindle rails 3 supporting spindles 2 and drafting arrangements 18 above the rails 3, includes a pneumatic cleaning system comprising an air duct 4 extending longitudinally of the rails 3 and having inlets 12, 13, 14, 15 formed in the lateral walls 17 and top wall 16 thereof positioned adjacent the spindles 2 and the arrangements 18, respectively; a row of apertures 5 formed in the base of the duct 4; and a fan 6 adjacent each aperture 5 to draw air through the inlets 12, 13, 14, 15 into the duct 4. Each fan 6 is driven by a motor 9 hung on the rails 3 by supports 7 or supported on an upright 8. A filter 11 covers the top of the aperture 5 to retain dust, fly and threads. Baffles 19 are provided below the rails 3 and additional baffles 20 may also be provided. A suction-box 21 connected to the duct 4 contains a motor 23 driving a fan 24 for drawing air out of the duct 4 and through a filter 25, when desired. To clear the filters 11 and remove accumulated dust &c. the motor 23 is energized and the motor 9 farthest away from the box 21 is reversed and decreased in speed so that impurities on the corresponding filter 11 are lifted therefrom and travel either directly into the box 21 or settle on the next filter 11. The motor 9 corresponding to this filter is then reversed and the operation is repeated until all the filters 11 are cleaned and dust &c. transferred to the filter 25. In a modification, Fig. 4 (not shown), the suction-box is arranged below the centre of the machine and the motors are reversed two at a time. Wiring diagrams for the motors are shown.
Patent GB-394373-A (GB)
Title: Process and apparatus for producing bleaching powder
IPC: C01B11/06
Filed: 1931-12-17
Abstract: <PICT:0394373/III/1> <PICT:0394373/III/2> In the production of bleaching - powder by intimately mixing finely divided lime with chlorine and air, lime supplied from a pipe 2, Fig. 1, falls under gravity through a chamber 4 into a chamber 5, wherein it is held in suspension by a current of chlorine and air supplied through a diffuser 6.  The current of gas continuously leaves the apparatus through a filter-condenser 14 and absorption vessels 18<1>, 18<11>. When reaction is complete the suction through the apparatus is diminished by opening a valve 10 and the bleaching-powder discharged under gravity through an outlet 11.  In a modification, Fig. 2, the chamber 5 is horizontal or slightly inclined, lime is supplied from a hopper 23, and the gas mixture is supplied both from a pipe 21 and lateral inlets 20, whilst the finished bleaching-powder is discharged into the filter-condenser 14 by increasing the suction through the apparatus.  Alternatively, the valve 17 may be closed and a valve 15 be opened, when the lime is circulated through a pipe 22 to chamber 14 and falls under gravity through hopper 24 back into the chamber 5. The Specification as open to inspection under Sect. 91 comprises also the following subject-matter: The application of the invention to the mixing of any solid with any gas for physical or chemical purposes. This subject-matter does not appear in the Specification as accepted.
Patent GB-1312165-A (GB)
Title: Sorting device for sorting substantially spherical objects or objects with a substantially circular crossection
IPC: G07D3/08
Filed: 1971-07-27
Abstract: 1312165 Separating solids L JOBST 27 July 1971 [29 July 1970] 35145/71 Heading B2H [Also in Division G4] Coin sorting apparatus comprises a drum 30 rotatable about a substantially horizontal axis A and having a peripheral wall which is provided with holes 46, one end of the drum comprising a coin inlet opening and the other end a coin discharge opening, and a conveyer screw 42 fixedly disposed inside the drum coaxially therewith. In a two denomination sorter the holes 46 are of diameter slightly greater than that of the smaller coin and the pitch h of the conveyor is slightly greater than the diameter of the larger coin. A multi denomination sorter (Fig. 4, not shown) has a drum (30') divided into sections, the holes in each individual section are of the same diameter while the diameter increases from section to section in the conveying direction of the screw. In the embodiment shown the drum is removably supported by walls 12, 16 and is rotatable by means of a handle 36 or an electric motor (70) (Fig. 5, not shown). A lead in element 48 is provided between walls 14, 16 and receives coins from a feed trough 50 positioned above the drum. The feed trough may be removed and used as a cover for the sorter. Gravel or similar material which is substantially spherical in shape may be sorted.
Patent GB-1348869-A (GB)
Title: Beverage composition
IPC: A23L27/10
Filed: 1972-07-27
Abstract: 1348869 Tea preparations NESTLE SA 27 July 1972 [12 Aug 1971 15 May 1972] 35150/72 Heading A2B A tea composition comprises a tea extract and an aromatic extract containing constituents from one or more fruits, the aromatic extract content of the composition being below the perseption threshold of a beverage reconstituted from the composition. The fruits named are apricot, banana, apple, grape, date, plum and fig. The aromatic extract is obtained by extraction of the fruit or fruits with a volatile solvent, which may be ethanol, aqueous ethanol, petroleum ether, halogenated hydrocarbons, acetone, aqueous acetone or liquid CO 2 . The extraction may be carried out on the fresh or dried fruit, preferably after freezing the fruit by immersing in liquid nitrogen, and grinding. γ-capro, y-octa, γ-deca, #-deca and γ-dodeca lactones, geraniol, geranial, α-terpineol and/or 1- and 2-linalol oxides may also be added to the composition. The fruit extract may be added to the tea extract either before or after spray- or freeze-drying.
Patent GB-1081681-A (GB)
Title: Apparatus for continuously detecting increments of movement of a movable member by means of instantaneous analog-digital conversion, particularly suitable for measuring instruments
IPC: H03M1/00
Filed: 1964-08-27
Abstract: 1,081,681. Selective signalling systems. G. IPPOLITO, and G. COLOMBO Aug. 27, 1964 [Aug. 29, 1963], No. 35159/64. Heading G4H. A disc (1), Fig. 1 (not shown), having a printed circuit (5) is attached to a shaft (3), the position of which is to be measured. An oscillator (8) is coupled to the circuit (5) by a capacitive coupling (4, 7), though inductive or brush coupling may be used. Three electrodes 12, 12a, 12b, Fig. 5, are associated with printed circuit (5). The currents in adjacent radial legs of circuit (5) flow in opposite directions and produce a null magnetic field along the axis of symmetry 11, the electrodes 12, 12a, 12b being used to detect the null position by means of the currents induced therein. Other types of sensing such as capacitive and brush-sensing could be used. The signals X, Y, Z from electrodes 12, 12a, 12b are applied to bi-stable circuits 14a, 14b, 14c, Fig. 6, in the manner shown. The AND gates 21a, 21b, 21c and 21a<SP>1</SP>, 21b<SP>1</SP>, 21c<SP>1</SP> detect the direction of movement of shaft (3) by a comparison of a presently occurring signal X, Y or Z with the preceding stored signal, the gates supplying three pulses to the add or subtract input of a counter 13 for each movement between adjacent null positions of circuit 5.
Patent GB-780602-A (GB)
Title: Improvements in and relating to motor vehicle shock absorbers
IPC: B60G13/08
Filed: 1955-12-08
Abstract: 780,602. Hydraulic shock absorbers. FORD MOTOR CO., Ltd. Dec. 8, 1955 [Dec. 31, 1954], No. 35282/55. Class 108(3) An hydraulic shock absorber comprises a block 56 having a wall 64 formed with a passageway 106 through which extends a valve member 76 having a flange 96 larger than the passageway 106 on one side of the wall 64, and engaged by spring means 100 to urge it against the wall 64 to close the passageway 106 except for a restricted opening 104, and a second flange 98 located a predetermined distance from the opposite side of the wall 64 (when the passageway 106 is closed) and movable towards the wall 64 when the flange 96 is moved by fluid pressure away from the wall 64, to provide a variable fluid restriction. As shown, the shock absorber comprises relatively movable inner and outer telescopic tubes 34, 30, connected respectively to the sprung and unsprung parts 26, 22, of a road vehicle spring suspension (Fig. 1, not shown). The tube 34 carries a head 50 slidably between the tube 30 and a coaxial inner tube 48 rigid with the tube 30. The tube 48 carries a valve head or block 56 slidable within the tube 34. The valve head 56 comprises identical valve assemblies 60, 62, connecting a reservoir 94 with respectively, the interior of the tube 48 and an annular space 75 between the tubes 48 and 34. Each valve 60, 62, comprises (Fig. 3) a replenishing valve 78 and a valve 76. The valve 78 is urged into engagement with a conical seat 80, in the wall 64 by a spring 92 acting through a valve pin 88 rigid with an abutment member 86. The valve 76 is slidable on the pin 88 and has a flange 96 urged on to a valve seating formed by an end-face of the valve 78. The flange 96 is formed with a plurality of radially disposed grooves 104 adapted to provide a minimum degree of restricted flow when the valve is seated. In operation, on compression, liquid is forced from the annular space 52 defined by the head 50 and the tubes 30, 48, through a port 54 into the tube 48. It then passes through the radial grooves 104 of, the valve flange 96 of the valve 60 and thence to the fluid reservoir 94 in the upper part of the tube 34. Liquid is drawn from the reservoir 94 through the grooves 104 of the valve 62 into the annular space 75. Under increased load, the valve 76 of the valve assembly 60, lifts with a blow-off action to permit greater flow. Greater flow in the reverse direction through the valve 62 is provided for, by lifting of the valve 78 against its spring 92. The blow-off of the valve 76 is modified by the action of a flange 98 carried by the valve 76, which moves into a conically flared portion 84 of the passageway controlled by the valve 76. On extension, the actions of the two valve assemblies 60, 62 are reversed. Liquid is forced from the space 75 through the valve assembly 62 into the reservoir 94, and liquid is drawn from the latter, through the valve assembly 60 to the interior of the tube 48, and passes through the port 54 into the tube 30. Specification 779,597, is refered to.
Patent GB-918478-A (GB)
Title: Improvements relating to fluid pressure support bearings
IPC: F16C32/06
Filed: 1961-09-29
Abstract: 918,478. Bearings. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 29, 1961 [Dec. 20, 1960], No. 35318/61. Class 12 (1). In a fluid bearing, the fluid flows through a perforated, slotted or porous wall thereof to support a load at a predetermined distance from said wall, and the fluid-flow is varied relatively to the fluid-pressure by means of an adjustable cover-plate which exposes the required surface area of the perforated &c. wall. In an embodiment a web-like material 15 is supported by an air-bearing 12 and the escape of air from the perforated-plate 14 varies in accordance with the angle of wrap, the limiting angles being at 16a and 16b. In order to maintain a balance between the escape of air and the pressure required to support the material, a plate 19, mounted on a hollow-shaft 10 which supplies the pressurized air, is rotatably adjustable so as to cover a variable area of the plate 14. The balancing-forces comprise a reaction airmotor 20 and a constant-torque spring 30. In operation, an increase of air escaping through the plate 14 causes a reduction of pressure in the bearing and also decreases the torque generated by the air-motor 20 so that the spring 30 rotates the shaft carrying the plate 19 so that the latter covers a larger area of perforations. The escape of air is consequently reduced and the pressure in the bearing increases until the force of the spring 30 is balanced. Similarly, if the perforated-plate is so covered by the material that the escape of air through the perforations is reduced, the plate 19 is rotated by the air-motor 20 against the action of the spring 30 and a smaller area of perforations is covered. The escape of air increases and the pressure decreases until a state of equilibrium is obtained. A viscous damper 40, comprising co-operating blades with fluid therebetween, serves to reduce oscillations. The spring 30 may be replaced by a counterweight 50, Fig. 2.
Patent GB-1123427-A (GB)
Title: Batchwise catalytic hydrogenation of hydrocarbon resins
IPC: C08F8/04
Filed: 1965-08-18
Abstract: A batchwise method of catalytically hydrogenating a petroleum resin, prepared by polymerizing an unsaturated petroleum refinery stream which contains mixtures of acyclic and cyclic olefines and diolefines, in a hydrocarbon solvent, in which the resin, solvent and/or catalyst are heated to the reaction temperature before hydrogenation provided that the catalyst is exposed to the resin only when the resin and/or catalyst is or are at the hydrogenation temperature.  The petroleum resin may be derived from a gas oil petroleum fraction which is subjected to steam cracking and then, after removal of pentenes, isoprene and cyclodienes, to Friedel-Crafts continuous polymerization using AlCl3 as catalyst. The resin and/or solvent, e.g. heptane, may be stripped with hydrogen or nitrogen prior to the hydrogenation which may use palladium on alumina as catalyst.