baber/WOPTO huggingface dataset:
Patent GB-809822-A (GB)
Title: Treatment of materials to improve water-repellency
Inventor: MEALS WILLIAM SALKELD
IPC: D06M15/643
Filed: 1955-01-04
Abstract: Compositions for rendering porous materials water-repellent comprise (i) at least one hydrolysable organosilane or the product of hydrolysis thereof, and (ii) at least one alkanolamine ester of titanic acid.  The said organic groups may be aryl, alkenyl or alkyl such as methyl, ethyl, propyl and octadecyl. Methylhydrogen-polysiloxanes may be employed in a mixture which also contains dimethylpolysiloxanes, such as mixtures described in Specification 680,265.  Examples disclose the following mixtures: silicone mixture as above, dichloroethylene and either monoethanolamine titanate, diethanolamine titanate or triethanolamine titanate; silicone mixture as above, diethanolamine titanate and cetyl dimethyl benzyl ammonium chloride; silicone mixture as above, white spirit, cetyl dimethyl benzyl ammonium chloride, acetic acid, water and triethanolamine titanate; silicone mixture as above, white spirit, oleic acid and triethanolamine titanate.  The subjectmatter of Specification 758,987 is disclaimed.  Specifications 708,821, [Group VIII], and 755,728 also are referred to.
Patent GB-1270226-A (GB)
Title: Improvements in transistors
Inventor: DEWITT DAVID
IPC: H01L23/29
Filed: 1971-01-04
Abstract: 1,270,226. Transistors. INTERNATIONAL BUSINESS MACHINES CORP. 4 Jan., 1971 [9 Jan., 1970], No. 261/71. Heading H1K. In making a transistor a layer of silicon dioxide and a superposed layer of silicon nitride are formed on the base region, an aperture opened in the layers and impurity diffused through it to form the emitter region, a further base contact aperture opened in the layers and metal deposited over the layers and in this aperture to form a base contact, a further layer of silicon dioxide deposited overall and then selectively etched to re-expose the emitter region and metal deposited on this layer and the emitter region to form an emitter contact. In the embodiment (Fig. 9) the metal layers 7, 10 are aluminium, or molybdenum on platinum, and the emitter is diffused prior to formation of the base contact apertures. Conventional processes, which are described, are used to form the oxide layers 2, 8a and nitride layer 3, and the first metal layer, 7 of aluminium, initially deposited overall, is removed from the emitter by etching in a specified phosphoric-nitric acid mix. In an alternative method the base contact and emitter diffusion apertures are formed simultaneously. Then a further layer of oxide is deposited overall, etched from the emitter aperture to allow the diffusion and subsequently from the base contact aperture.
Patent GB-140528-A (GB)
Title: Improvements in or relating to the control of hydro-electric power stations
IPC: F03B15/14
Filed: 1919-01-04
Abstract: 140,528. Wilson, H. J. Jan. 4, 1919. Regulating; working-fluid supply.-Apparatus for controlling the water supply to the turbines of hydro-electric power stations comprises a hydrostatic controlling-arrangement actuated solely by variations in the depth of water in a tank, and thereby maintains the power at the turbine nozzles approximately constant. The surge tank A is divided into two compartments by a vertical wall a<2>, and the water supply enters the compartment a<1> by a pipe a<4> and leaves it by a pipe a<5> conducting it to the turbines. A strainer a<6> to intercept sediment &c. is interposed. The compartment a' is connected with the compartment a by small channels a<3>, which damp out excessive wave surgings. A partition a' divides the compartment a, in the lower part of which is a float B guided on rods b<2>, b<3> and connected by a rod D with a pivoted beam C in the upper chamber. Depending tubular rods E, E<1> attached to the beam C dip into oil dash-pots F, F', the floors of which are covered with mercury. Electric connexions are made so that. if the water rises sufficiently, the float B tilts the beam C to make electric connexion between the rod E<1> and the mercury in the dash-pot F' and close a circuit from electric accumulators to an electric motor, which, through worm and worm-wheel gearing, closes a needle-valve in the turbine nozzle to maintain the power supply approximately constant. If the water-level falls sufficiently, the float B falls and tilts the beam C to close a circuit between the rod E and the mercury in the dashpot F and so energize another electric motor, which opens the needle valve in the turbine nozzle. The continued rise of the water beyond a predetermined level may be dealt with to bring additional turbines into use, for instance by the needle-valve spindle making electric contacts at particular points of its movement to effect such control.
Patent GB-1424172-A (GB)
Title: Electromagnetic device for determining the conductance of a nearby body
IPC: G01V3/165
Filed: 1974-01-03
Abstract: 1424172 Electro-physical measurementairborne surveying UNIVERSITY OF CALIFORNIA REGENTS OF 3 Jan 1974 [15 Jan 1973 ] 00294/74 Heading G1N Electromagnetic airborne survey equipment towed by e.g. a helicopter comprises an inductor which is supercooled so that its actual resistance is small and thus changes in effective resistance due to earth deposits can easily be measured. CONSTRUCTION - FIGS. 1 .. 4 (not shown). As described the equipment is mounted in a fibreglass "vehicle" having an inner container housing the inductor which is cooled by liquid hydrogen. The space between the outer-shell and the container is evacuated and packed with e.g. a hundred layers of insulating foil. The vehicle is mounted on low-pressure landing pods and has a stabilizing tail-fin. CIRCUIT. FIG. 5. The coil L and series tuning capacitor C are connected in a bridge circuit (including R 1 , R2, R5) which is transformer coupled to an amplitudelimited oscillator including an amplifier 27 and a feedback loop 31 from the secondary of the transformer 26 whereby L and C determine the oscillator frequency. Thus changes in inductance due to mechanical strains when towed, do not throw the circuit out of resonance causing an erroneous out-of-balance signal.
Patent GB-395608-A (GB)
Title: Improvements in apparatus for delivering measured quantities of liquids
IPC: B67D7/16
Filed: 1933-01-04
Abstract: 395,608. Liquid-meters. SOC. D'ETUDE DE DISTRIBUTEURS AUTOMATIQUES S. E. D. A., 10, Rue de Milan, Paris. Jan. 4, 1933, No. 320. Convention date, Jan. 4, 1932. Addition to 353,605. [Class 69 (i).] The apparatus described in the parent Specification is modified by causing the descent of the float 52 to move the main valve 4 into the filling position through an auxiliary valve 5, which controls the admission of liquid to act on one face of a piston 16, and by mounting the float vessel 29 in a chamber 51 having an outlet 54. The parts are shown in the positions occupied when the measuring chamber 27 is being filled from the inlet 3. The increase in pressure consequent on the completion of filling and closing of the float valve 47, moves the valve 4 to the left, the valve 5 being prevented from similar movement by a lug 17 on a spring- pressed pivoted member 18, and a member 41 on a lever 38 being moved to allow a spring- pressed catch 64 to contact with the member 18. Liquid from the chamber 27 passes to the float vessel, and the consequent rise of the float causes the catch 64 to engage the member 18 at 23. The subsequent fall of the float draws down the member 18, and the valve 5 is moved to the left by the liquid pressure to allow liquid from the supply inlet 3 to pass through a passage 14 and act on the piston 16 to return the valve 4 to its initial position. During the return of the valve 4, a nose 36 engages and returns the valve 5, and the member 41 disengages the catch 64 to allow the member 18 to be raised by its spring 20.
Patent GB-314907-A (GB)
Title: Improvements in drying systems and apparatus
IPC: F26B17/04
Filed: 1928-01-05
Abstract: 314,907. Capps, A. W. F. Jan. 5, 1928. Air and gases, controlling direction of flow of. - The latent heat of the vapour generated during the drying of sugar beet, &c. by a current of air &c. is used to heat fresh air entering the drying compartment. The sugar beet is carried through the drying compartment by a conveyer a in countercurrent to air which, after passing through the compartment, is heated in the furnace of a boiler supplying a steam engine driving the conveyer and returned through the space above the compartment in which it condenses, the heat of condensation passing through the metal plates b separated by sinuous strips c to fresh air entering the drying compartment. The air initially entering the compartment is heated to start the drying.
Patent GB-923941-A (GB)
Title: Improvements relating to the drawing of filamentary synthetic polymer structures
IPC: D02J1/22
Filed: 1960-01-05
Abstract: Synthetic linear polymer filaments having a lubricating finish are passed at a uniform rate over a hot solid surface maintained at a temperature within 45 DEG C. above the crystalline second order transition temperature of the polymer, the tension in the filaments while passing over the hot surface being 10-40% of the natural drawing tension at the temperature of the hot surface, and the filaments are then passed through a snubbing zone where drawing tension is applied, the time of contact of the filaments with the hot surface being sufficient to obtain uniform heating of the yarn. "Natural drawing tension" is defined as the tension in the threadline at the draw point when a yarn is being drawn at its natural draw ratio under steady conditions.  "Natural draw ratio" is defined as the degree of stretch which results when drawing is effected at a high speed and low temperature such that an abrupt neck is formed in the filaments, which neck remains substantially stationary in the path of the running filaments. The relationship between the time of contact of the filaments with the hot surface and the temperature of the surface may be in accordance with a formula given in the Specification.  The polymer may be a linear polyester in which at least 85% of the recurring structural units have the formula <FORM:0923941/IV(a)/1> in which G is an organic radical containing 2-10 carbon atoms, at least those carbon atoms which are attached to oxygen being saturated. The polyester may be ethylene terephthalate. The lubricating finish may be a mineral or fatty oil, a sulphonated castor oil or a silicone oil. The drawn polyester filaments have improved uniformity of dye receptivity and high drawing speeds may be used.  Specification 578,079 is referred to.
Patent GB-256122-A (GB)
Title: Improvements in or relating to number plates for vehicles and boats
IPC: B60R25/00
Filed: 1926-01-07
Abstract: 256,122. Lindhorst, A., Gronninger, A., and Gronninger, H. Jan. 7, 1926. Addition to 250,843. Guarding against unauthorized use. -The appliance described in the parent Specification, and consisting in wholly or partly obscuring the identification plate by means of a cover plate, is provided with additional symbols or part symbols in a warning colour to enable the registered number to be identified when the appliance is in use. As shown in Figs. 1<a>, 1<b>, and 1<c>, the registered number D is partly formed on the number plate i and partly on the cover plate k, the number being completed on that part of the number plate which is exposed when the cover plate is removed, by part symbols B in a contrasted colour on a warning background. A twopart hinged number plate E, Fig. 2, has the normal symbols D on one side and the warning symbols B on the other side. A box-form sign has the warning symbols on an invertible glass sheet. The number plate E, Figs. 5<a>, 5b, and 5<c>, is pivotally mounted on trunnions T in a frame R and is provided with lugs G co-operating with lugs H on the frame so that it can be rotated through 180� and then secured in position to display either the normal symbols D on one side or the warning symbols B on the other side.
Patent GB-1217851-A (GB)
Title: Improvements in or relating to dredgers
Inventor: PENFOLD PAUL ERIC
IPC: E02F3/90
Filed: 1967-01-04
Abstract: 1,217,851. Suction apparatus. PENFOLDS HOLDINGS Ltd. 21 Dec., 1967 [4 Jan, 1967], No. 594/67. Heading E1F. A dredging device for lifting and forcing material through a dredger tube by injector action comprises a tubular body 14 surrounded by a body 10 which communicates with the body 14 through an annular nozzle 47 adapted to deliver an annular jet of water into the body 14. An end member 24 carries a sleeve 26 adapted to be connected to pipework leading to dredged material, and the members 10, 14 are connected to concentric pipes 21, 22 leading to a dredger vessel. The inner surface of the member 14 is formed by a venturi sleeve 49. In operation water under pressure passes down between the pipes 21, 22, through a passage 33 which is of decreasing cross-sectional area, and through the nozzle 47 and the venturi sleeve 49 into the pipe 21.
Patent GB-308844-A (GB)
Title: Improvements in or relating to coin-in-the-slot machines
IPC: G07F5/10
Filed: 1928-01-07
Abstract: 308,844. Dence, E. M., Keeley, E. H., and East, J. Jan. 7, 1928. Delivery of electricity by time-controlled apparatus; coin action, electric-connection. - Relates to coin-freed apparatus of the type in which the coin makes contact with two terminals and closes the electric circuit of a solenoid, thereby actuating an armature to close a switch which releases a clock or other mechanism, the circuit closed by the switch being subsequently automatically broken at the end of a predetermined time or set of operations. According to the invention, the sudden displacement of the armature tripe the coin and thereby breaks the circuit of the solenoid. A coin 1 inserted through a slot 2 and shoot 3 rests on terminals 4 and closes the circuit of a solenoid 6, the plunger 7 of which rises and tilts a plate 5 to discharge the coin. The plunger 7 works in a dash-pot 8 which allows it to return gradually to its initial position. The time of return may be adjusted by a valve 9. An arm 10 is rocked by the plunger to close a switch 13, which may be of the mercury type.
Patent GB-382474-A (GB)
Title: Improvements in or relating to broadcast and similar radio systems
IPC: G04C23/00
Filed: 1932-01-08
Abstract: 382,474. Electrically-tripped switches. CARPMAEL, A., 24, Southampton Buildings, London.-(Siemens & Halske Akt.-Ges.; Siemensstadt, Berlin.) Jan. 8, 1932, No. 619. [Class 38 (v).] A relay responsive to a special wireless signal comprises a polarized reed 8 tuned to the frequency of the signal and whose operating coils 5 are connected to the output termirials 1, 2 of the receiver, when the handle 19 is depressed to close contacts 11, 18. The lever 18 co-operates with a catch 13 which is tripped when the tongue 8 vibrates to release lever 18 and close contacts 12, 18 connecting loud-speaker terminals 3, 4 to the output terminals 1, 2.
Patent GB-874961-A (GB)
Title: Method and apparatus for the controlled withdrawal of granular solids from a liquid-granular solid contracting zone
IPC: B01J8/00
Filed: 1958-01-07
Abstract: <PICT:0874961/III/1> Impurities such as colour bodies are removed from liquid hydrocarbon oils by percolation through a moving mass of granular adsorbent in a chamber (not shown).  Apparatus for controlling the rate of withdrawal of granular solids from the chamber consists of an upright cylinder 59, Fig. 3, closed at its lower end, a port 60 in its side, a foraminate sleeve 64 open at the top and effectively open at the bottom vertically movable within the cylinder, the upper end of the screen extending to a level above the upper end of the cylinder when their lower ends are in contact, a conduit 19 delivering liquid and granular solids from the contacting chamber to the interior of the screen at a level above that of the port 60, and means, such as a tapered section 58 forming with the upper end of cylinder 59 a trough 61, for carrying away liquid which overflows the upper end of cylinder 59. Preferably means, such as a screw 63 abutting against a spider 65 secured to the bottom of the sleeve 64, is provided for adjusting the vertical position of the sleeve so as to uncover more or less of the port 60 and thereby control the rate of flow, through the port 60, of solids which have passed continuously down the sleeve and through the spider.  The retardation of solids flow resulting from removal of liquid by the screen, and the above control of solids flow rate, influence the movement of solids in the contacting zone so that the desired control of the rate at which solids move therethrough is effected.  Movement of solids into and through port 60 is assisted both by liquid passing through the screen and flowing across the bottom of cylinder 59, and by liquid flowing directly through the screen into port 60.  The sleeve may be stainless steel woven wire screen, or a porous medium. Adsorbents mentioned are: fuller's earth, bauxite, bentonite, charcoal, magnesium silicate, heat- and acid-activated kaolin, activated carbon, and synthetic silica or alumina or silica-alumina gel adsorbents.  The treating temperature may be 300 DEG F. in the range 0-700 DEG F.  For a washing stage solvents mentioned are: carbon tetrachloride, normal heptane, normal octane, petroleum naphtha boiling within the range 100-400 DEG F. and carbon disulphide.  A paraffinic naphtha boiling within the range 210-300 DEG F. is preferred.  The washing may be conducted below, at, or above atmospheric pressure, and at a temperature below that at which substantial vaporization occurs, e.g. 60-250 DEG F. Specification 711,487 is referred to.
Patent GB-1154480-A (GB)
Title: Alkaline Hydrolysis of Polyimides
IPC: C07C51/06
Filed: 1967-01-05
Abstract: 1,154,480. Aromatic tetracarboxylic acids and diamines. E. I. DU PONT DE NEMOURS & CO. 5 Jan., 1967 [6 Jan., 1966], No. 754/67. Heading C2C. [Also in Division C3] Aromatic tetracarboxylic acids and aromatic diamines are obtained by hydrolysing scrap polyimide in 1 to 30 wt. per cent aqueous ammonia or alkali metal hydroxide in sufficient amount to provide at least 2 moles OH per mole imide N at 100 to 200 C.; precipitating the diamine by cooling and separating it from the mother liquor; precipitating tetracarboxylic acid with a mineral acid, and separating the precipitated acid. The solution may be decolorized with carbon black. The application of the process to the polypyromellitimide of bis- (4-aminophenyl)-ether is exemplified and numerous other tetra-acids and diamines which can be similarly obtained are listed.
Patent GB-901951-A (GB)
Title: Improvements in or relating to the manufacture of commutators
IPC: H01R43/06
Filed: 1961-01-09
Abstract: 901,951. Making commutators. BOSCH G.m.b.H., ROBERT. Jan. 9, 1961 [Feb. 11, 1960], No. 771/61. Class 83 (2). In making a commutator comprising connecting lugs 13<SP>11</SP> soldered to the segments 10 which are embedded in a hub 11 of moulded insulating composition, moulding composition is also pressed into the spaces 11<SP>11</SP> between the inner surfaces of each pair of lugs, the outer surfaces of which are supported by the mould (not shown), and after hardening, the composition is removed from the spaces 11<SP>11</SP>. The segments have integral, embedding hooks (Fig. 2, not shown), and end slots to receive the lugs, the turning of which facilitates removal of the composition from spaces 11<SP>11</SP>. The hub 11 is mounted on a steel bush 12.
Patent GB-249792-A (GB)
Title: Improvements in or relating to jars, pots and the like, for table use
IPC: A47J47/02
Filed: 1926-01-11
Abstract: 249,792. Asprey & Co., Ltd., Asprey, K. M., and Hunting, D. M. Jan. 11, 1926. Gum and Like receptacles.-A jar, pot, or the like 1 has a ledge 2 near its mouth cut away at 4 to receive a spoon or other server, the lid 3 having a, similar cut away portion 5 extending inwards to the edge of the ledge.
Patent GB-390830-A (GB)
Title: Improvements in and relating to electric lamps
IPC: F21S6/00
Filed: 1931-10-09
Abstract: 390,830. Pedestal and overhead electric lamps. KNIGHT, G. H. F., 48, Pont Street, Chelsea, London. Oct. 9, 1931, No. 810. [Classes 75 (ii) and 75 (iv).] A lamp comprises a light source 11 surrounded by a hollow reflector 10 having openings at both ends and shaped to reflect the majority of the light through one of the openings, an opaque auxiliary reflector 20 situated adjacent the other opening to reflect issuing light outwardly and towards the opposite end of the reflector, and a parchment or other semitransparent shade 22 surrounding the reflectors and internally illuminated by light reflected directly from the auxiliary reflector. The reflector 10 is supported by a wire frame consisting of three upright stays 12 and two rings 13, 14, the lower ends of the stays being flattened and secured to a disc 16, the latter carrying a threaded sleeve 17 for adjustably supporting the holder 19 of the electric lamp bulb 11. The Figure shows the lamp mounted on a pedestal 18 so as to project the majority of the light upwardly towards the ceiling, a portion of the glass part of the bulb 11 being outside the reflector 10 with an annular space between the bulb and the edge of the reflector, but the lamp may be suspended so as to project the majority of the light downwardly on to a table and the bulb may be directly mounted in the reflector, the latter being formed with holes for the passage of light on to the auxiliary reflector.