baber/WOPTO huggingface dataset:
Patent GB-579208-A (GB)
Title: Improvements in heilmann combing machines
IPC: D01G19/26
Filed: 1944-04-01
Abstract: 579,208. Combing-machines. LUNN, L. April 1, 1944, No. 6111. [Class 120 (i)] In a Heilmann combing machine, the cam P, operating the bracket carrying the top nipper knife, is formed with a portion p, p<1> of somewhat less than half its circumference, for holding the nippers closed, followed by a sharply eccentric portion p<1>, p<3>, then again by a portion p <3>, p<4> of flatter curvature, slightly raised at p<6> and followed again by a sharply eccentric portion p<4>, p. The point p3 corresponds to the commencement of the feed motion of the fibres and also the point at which the nipper knife begins to open, while the point p <5> represents where it is fully opened and the point p<4> where it is finally closed. The angular distance p<5>, p<6> is made relatively large to ensure that the knife is opened long enough to allow the tail end fibres to pass through the top comb for efficient combing. The bowl A and cam groove P are preferably smaller than in normal construction. Specification 474,456 is referred to.
Patent GB-578454-A (GB)
Title: Improvements in or relating to laminated material
IPC: C08L27/00
Filed: 1944-04-03
Abstract: A method of laminating non-vulcanizable non-fibrous synthetic film material with butadiene copolymer material comprises forming on the surface of one or both of the materials an adhesive composition comprising a polyvinyl butyral and the ingredients of a polyhydric phenol-aldehyde resin, bringing the materials together with the adhesive between and maintaining the sandwich at an elevated temperature sufficient to convert the ingredients to resin and unite the materials.  The polyvinyl butyral in the adhesive contains 20.7 to 47.4 per cent combined butyraldehyde which corresponds to the range 30-90 per cent substitution by hydroxyl groups.  The range 31.3 to 45.7 per cent by weight of butyraldehyde is preferred, the butyral preferably being prepared by butyralisation of polyvinyl alcohol free of or with a minor proportion of ester groups.  Suitable ingredients of the thermo-setting resin are resorcinol, phloroglucinol, orcinol or quebracho extract and formaldehyde, paraformaldehyde, acetaldehyde, furfural or aldol, with the aldehyde in excess.  A basic catalyst, e.g. .5-1.5 per cent NaOH or KOH is added.  The ratio of butyral to phenol-aldehyde resin ingredients in the adhesive is important and the former should comprise 25-60 (preferably 30-45 per cent) of the solvent-free layer.  The adhesive composition is applied by spraying, brushing, doctoring or other suitable means and the solvent evaporated.  The temperature may be raised during the drying process to 65-125 DEG  C. in order to polymerize the resin, but final heating to the insoluble state may be allowed to occur when the structure is heated to cure the compounded butadiene copolymer.  The synthetic non-vulcanizable film material may be nylon, regenerated cellulose, cellulose esters such as the acetate, propionate acetopropionate or aceto-butyrate, polyvinyl alcohol polyvinyl acetal, mixed acetals, e.g. polyvinyl formal, polyvinyl propional, polyvinyl benzyl formal and partial polyvinyl butrals (50-60 per cent hydroxyl substitution).  The copolymers of butadiene and acrylonitrile, styrene isobutylene are specified and these may be compounded with the usual pigments, fillers, plasticizers, stabilizers, accelerators, dispersing agents, ageing resistors and sulphur.  The layers are preferably bonded under pressure of 100 lbs./sq. in., but lower pressures of 5-10 lbs/sq. in. may be used. The curing temperature is 80 DEG -160 DEG  C. and curing time preferably 20-80 minutes.
Patent GB-384303-A (GB)
Title: Tank furnace for glass and the like
IPC: C03B13/04
Filed: 1931-02-27
Abstract: 384,303. Glass manufacture. COMPAGNIES REUNIES DES GLACES ET VERRES SPECIAUX DU NORD DE LA FRANCE, Boussois-sur-Sambre, Nord, France. Feb. 27, 1931, No. 6230. Convention date, March 13, 1930. Void [Published under Sect. 91 of the Acts]. [Class 56.] Rolling.-Apparatus for making sheet glass continuously comprises a tank furnace 1 with an horizontal slot 10 formed at one end through which the molten glass flows into the pan between a pair of sheet-forming rollers 11, 12. The slot is arranged at a level which is below the surface of the glass in the tank, so that a thick layer of molten glass above the slot ensures a more uniform temperature in the glass flowing through the slot. The rollers 11, 12 are arranged close to the slot, but a space is left in which the issuing glass can accumulate and form. a reserve 24. The width and thickness of the slot are adjustable.
Patent GB-964858-A (GB)
Title: Improvements in or relating to collapsible containers
IPC: B65D90/20
Filed: 1963-02-15
Abstract: 964,858. Flexible skips. L. SILFVERSKIOLD. Feb. 15, 1963 [Feb. 17, 1962], No. 6314/63. Heading B8H. A collapsible skip has a cylindrical wall 1, Fig. 5, an inlet 10 and an outlet 3, a reinforcing ring 4 attached to a lifting yoke 5 and a separate supporting bowl 12 into which it fits when collapsed. The envelope 1 is of fabric, coated or impregnated with either plastics or rubber. The ring 5 is polygonal and the forks of a lift truck can engage it in at least two directions at right angles to each other. Legs 12, Fig. 3, are provided on the bowl in such a way that they can be stacked with the skip inside and picked up by a fork-lift truck. If the ratio of the diameter of the skip to its height is approximately 1 to 1.5 it will be stable when lifted by means of the bowl. To increase stability straps or chains may be connected between the ring 5 and the legs 12. This arrangement may also be used when the skip is lifted by a crane. Alternatively, supporting racks may be fitted into sockets 16 on the bowl.
Patent GB-100484-A (GB)
Title: Improvements in Radial-flow Turbines.
IPC: F01D1/28
Filed: 1916-05-04
Abstract: 100,484. Svenska Turbinfabriks Aktiebolaget Ljungstr÷m. May 15, 1915, [Convention date]. Combined-flow type. -A radial-flow turbine with oppositely-running rotors C, C' has an axial - flow discharge stage h comprising one or more rings of fixed and moving blades arranged as shown. The radially-extending blades h<2> may be arranged on only one of the oppositely-running rotors.
Patent GB-1176381-A (GB)
Title: Pressure Sensing Instrument for Aircraft
IPC: B64D43/00
Filed: 1967-02-10
Abstract: 1,176,381. Electrical pressure measuring devices. ROSEMOUNT ENG. CO. Feb. 10, 1967 [Feb. 14, 1966], No.6446/67. Heading G1N. The Mach number, angles of attack and sideslip, impact pressure and static pressure during aircraft flight are computed from three or more pressure measurements obtained from a probe 11, Fig. 1, which protrudes from the fuselage or nose boom of the aircraft. The end 14, Fig. 4, of the probe may be hemispherical, parabolic conical or ogival and is arranged so that its axis of symmetry is parallel to that of the aircraft. Three or preferably five ports 16,. 20-23 are provided on the end 14, port 16 being arranged with its axis parallel to the axis of symmetry of the probe and the other ports symmetrically round the port 16 with their axes at an angle of between 35-45 degrees to that of port 16. Alternatively the part 16 may be provided separately. These ports are connected via individual conduits to individual electrical pressure transducers, or differential pressure transducers. It is found that the angle of attack or sideslip is given by P 1 -P 2 /P T -P 4  where P 1 , P 2  are the pressures at ports in the same plane as that in which the angle is measured in, e.g. 20, 21 or 22, 23 respectively. P T  is the pressure at port 16, equal, for small angles of attack or sideslip to the total pressure, i.e. the normal pitot pressure. P 4  is the normalized pressure and may be obtained from the expression P 1 +P 2 /k where k is equal to 2 for small angles of attack and sideslip and in the range 1À6-1À8 for larger angles. Other similar function of P 1  and P 2  representative of P 4  are given in the specification. The Mach number M is given by a known function of P 4 /P T .    The static pressure P is given by a known function of M and P T . The impact pressure is given by P-P T . The electric signals from the pressure transducers are supplied to a computer from which signals representative of the above variables are obtained. These signals may be used to control an autopilot or other aircraft components. The probe may be provided with electric heaters to keep it deiced.
Patent GB-139023-A (GB)
Title: Improvements in appliances for playing a game of skill
IPC: A63D3/00
Filed: 1919-03-15
Abstract: 139,023. Johnson, J. C., and Henwood, J. L. March 15, 1919. Table games.-Self-righting men A with leaden bases are used in playing a game upon a board marked with positions e, d for the self-righting men and with numbered positions F, the object of the player being to roll or project a ball by means of a cue or toy gun or other means so as to knock the self-righting men on to the numbered positions. The board has an upstanding border 19, which may be detachable. The men A have cardboard bodies, but, in modifications, the leaden base is fitted with a bulbous wooden body or with a cylindrical cork body. Reference has been directed by the Comptroller to Specifications 23435/97 and 23618/10.
Patent GB-112571-A (GB)
Title: Improved Apparatus for Determining and Automatically Recording the Weights of Railway Vehicles.
Inventor: CRANSTON JOHN CHARLES
IPC: G01G19/04
Filed: 1917-05-08
Abstract: 112,571. Cranston, J. C. May 8, 1917. Locomotives and vehicles, ascertaining distribution of weight on wheels of.-In means for ascertaining the load on any wheel of a locomotive or other railway vehicle by measuring the deflexion produced at the centre of a short length of rail A, Fig. 1, supported at its ends on knife-edges b, a cylinderpiston pair D, E, Fig. 2, is used for obtaining a magnified measure of the deflexion together with means for indicating the relative volume-displacement of the cylinder-piston pair. The cylinder D is secured to the base-plate B, and the rail A rests on a bearing-piece F provided with an inverted cup f to receive the upper end of a stud G which serves as an adjustable distance-piece between the rail and the piston E. Mercury or other suitable liquid is introduced into the cylinder through a hole in the spring-pressed piston E closed by a screw e<1>, and the cylinder is fitted with a cover e<2>. The apparatus is provided in duplicate so that the load on each of the two wheels of an axle can be determined at the same time. Pipes h lead from the cylinders D to a cylinder-piston pair h<1>, h<2>, and a toothed rack h<3> carried by the piston h<2> gears with a pinion h<4> on the axis of the pointer h<5> of the indicating- device H. When the apparatus is not in use, the pipes h are placed in communication with a reservoir h<6>. Instead of the device H, the pipes h may be connected to glass tubes k, Fig. 3, the heights of the columns of liquid displaced from the cylinders D being read on a scale graduated in term of units of load carried by a wheel. The tubes h, k can be placed in communication with a reservoir k<2> by means of cocks k<1>, and, by adjusting the degree of immersion of the float k<3> in the liquid, the level in the tubes k can be set at datum and the effect of heat expansion in the tubes h eliminated.
Patent GB-702401-A (GB)
Title: Electrical pulse generators
Inventor: DAVIES DONALD WATTS
IPC: H03K3/53
Filed: 1951-03-19
Abstract: 702,401. Semi-conductor pulse generating circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 21, 1952 [March 19, 1951], No. 6579/51. Class 40 (6) A delay line is terminated by a rectifier in such sense as to permit a pulse of one polarity to be propagated down the line. A positive-going wave front travels down the line L of characteristic impedance R and is reflected due to the shortcircuit at the further end. The rectifier K conducts sufficiently to present a resistance R so that further reflections are prevented. Since the rectifier is non-conducting during the pulse period of twice the delay time of the line the pulse has double the amplitude of a resistorterminated line. When a low impedance source is employed, a series rectifier is used, Fig. 6 (not shown) feeding a line with an open remote end.
Patent GB-710803-A (GB)
Title: Esterification process
IPC: C07C69/24
Filed: 1952-03-14
Abstract: Esters which form binary azeotropes with water are prepared by feeding an alcohol and acid into a reaction zone containing more of the acid and an acid esterification catalyst, the feed rate being such that the acid is always present in excess of the alcohol, distilling off the ester and water as an azeotrope, separating the ester from the distillate and continuously feeding to the reaction zone sufficient of the ester to form an azeotrope with all the water introduced into or produced in the reaction zone.  Both the acids and alcohols contain up to 5 carbon atoms. The catalyst used may be a mineral acid, for example, hydrochloric or sulphuric acid, or ethyl sulphuric acid, or an aromatic sulphonic acid, for example, benzene sulphonic acid.  The reactants are preferably substantially free from water.  In the example, glacial acetic acid is introduced into the reaction vessel fitted with a fractionating column and is heated to 112-118 DEG  C.; a mixture of glacial acetic acid and ethyl alcohol in stoichiometric proportions containing 0.1 to 0.5 per cent by weight of a mineral acid esterification catalyst is added; an ethyl acetate-water azeotrope distils off and separates into two layers on condensation.  Sufficient ethyl acetate is recycled to enable all the water produced in the reaction to form an azeotrope.
Patent GB-372868-A (GB)
Title: Improvements in frames for gully grates and the like
IPC: E03F5/06
Filed: 1931-03-05
Abstract: 372,868. Gulley grates. PELL, H. W. L., Vale House, Tonbridge, Kent. March 5, 1931, No. 6803. [Class 107.] A gulley grate or the like comprising a series of connected parallel bars is adapted to fit into a rectangular frame which is provided with projections A cast on the inner surfaces of two opposite sides at such distances apart as to provide recesses B for accommodating the ends of the bars.
Patent GB-684625-A (GB)
Title: Improvements in or relating to dyestuff intermediates
Inventor: FRY DOUGLAS JAMES
Filed: 1950-03-20
Abstract: Dye intermediates of the general formula <FORM:0684625/IV (b)/1> wherein R1 and R2 each represent an alkyl, hydroxyalkyl, or aralkyl group, D represents the residue of a 5- or 6-membered heterocyclic ring system, and n is 0 or 1, are prepared by reacting two molecular proportions of a heterocyclic base of the general formula <FORM:0684625/IV (b)/2> with an excess over one molecular proportion of a compound of the general formula <FORM:0684625/IV (b)/3> wherein R3 is alkyl, aralkyl, or aryl and R4 is or as R3, in the presence of an excess over three molecular proportions of an alkyl toluene-sulphonate of the general formula <FORM:0684625/IV (b)/4> The reaction of the heterocyclic base with the intermediate <FORM:0684625/IV (b)/5> is referred to.  2-b  : b -Bis-methylthiovinylbenzthiazole methiodide is prepared by heating together 2 - methylbenzthiazole, methyl p - toluenesulphonate, and methyl phenyldithiocarbamate, dissolving in ethanol, and pouring into aqueous KI.  2-b  : b -Bis-ethylthiovinylbenzthiazole ethiodide, 2-b : b -bis-methylthiovinylbenzoxazole methiodide and 2-b  : b -bis-methylthiovinylbenzthiazole methiodide are similarly prepared. Specifications 549,201, 549,202, 549,203, 549,204, 623,990; 678,626, 681,736 and 684,622, [all in Group IV (c)], are referred to.
Patent GB-711047-A (GB)
Title: Hydraulic pit-prop
IPC: E21D15/45
Filed: 1951-03-22
Abstract: 711,047. Pit props. RITCHIE, C., and BRAND, J. March 22, 1951, No. 6907/51. Class 20 (2). [Also in Group XXX] An hydraulic pit prop comprises a lower cylinder portion a and an upper piston portion d forming a storage container g for hydraulic fluid which, under the action of compressed air admitted to the container, is displaceable via a valve h into the cylinder, and a duct m connecting the cylinder with the upper part of the storage container g is normally closed by a pull-valve cock n and is opened by remote control to permit hydraulic fluid to flow from the cylinder to the container when the prop is to be dismantled. An overload relief valve i is provided and compressed air is admitted to the container g through an inlet I provided with a non-return valve (not shown). Tubular adaptor pieces of various lengths each having a prop head o are attachable to the upper portion of the prop to adjust its length accordingly to seam thickness. A differential pump may be fitted into the upper portion to allow the prop to be set up with a higher pre-loading.
Patent GB-220925-A (GB)
Title: Means for sintering fine ores and pulverous ores by means of portable sintering vessels
IPC: F27B21/06
Filed: 1924-03-18
Abstract: 220,925. Allmõnna Ingeni÷rsbyran H. G. Torulf. Aug. 22, 1923, [Convention date]. Addition to 200,090. Open pan sintering apparatus.-In the continuous sintering of pulverulent ores by means of portable sintering vessels described in the parent Specification, the vessels, after sintering at the working place communicating with an exhausting plant, are transported to a discharge point where they are emptied, the emptied vessels being then restored to the working place where they are filled with fresh material by a charge-filling device movable between a charge preparing place and the working place. The mixture, comprising fuel and fine ores prepared in a mixer 3, is elevated into a receptacle 13 which is run out on rails 11 and emptied into one of the sintering vessels 10 connected to an exhauster 9. The charge is ignited by an igniter 14, and when sintering is completed the vessel 10 is lifted by the overhead wagon 15 and run out to the emptying place 17, where the sintered material slides through the shoot 18 into the wagon 23, while most of the material not sintered will pass through a sieve in the bottom of the shoot and drop into a wagon 22. The emptied vessel 10 is then restored to its place on the sintering and exhausting platform. Instead of having an elevated transport way 12, each vessel 10 may be moved sideways by a travelling crane and placed on a wagon on rails adjacent to the sintering platform, whence it is run along and tipped into a wagon at a lower level.
Patent GB-1205329-A (GB)
Title: Means for effecting delayed under-voltage release of an electromagnetic switching device
Inventor: GEES KARL LENNART
IPC: H02H3/247
Filed: 1968-02-13
Abstract: 1,205,329. Protective arrangements. ALLMANNA SVENSKA ELEKTRISKA A.B. 13 Feb., 1968 [14 Feb., 1967], No. 7027/68. Heading H2K. In an undervoltage protective arrangement, a load 1 comprising one or more operating coils of an electromagnetic switching device or devices is connected both to the main supply conductors 2 and to the combination of an asynchronous machine 6 and capacitors 8, this combination delaying the release of the switching device or devices. In the circuit shown, a drop in the supply voltage enables a capacitor 20 to discharge through a unijunction transistor 24 and a resistor 30. This applies an ignition pulse to a thyristor 19 which conducts so that a capacitor 16 discharges through a release coil 12 and causes the release of an armature 9 from the holding permanent magnet of a high-speed circuuit-breaker 4 which opens its contacts. The load 1 is now disconnected from the supply, but is maintained energized for a period by the machine 6 acting as a generator, the machine being rendered effective by a flywheel 7 and the capacitors 8. If the supply voltage is not re-established, a contactor 3 opens to disconnect the load 1 with a delay determined by .the discharge of a -capacitor 25 through a resistor 26 and the coil-of .the contactor 3. When the circuit-breaker 4 releases, it closes auxiliary contacts in series with a relay 14 so that when the supply voltage is restored, the relay 14 closes its contacts to complete the circuit for a closing coil 13 of the circuit breaker 4
Patent GB-580836-A (GB)
Title: Improvements in oil burners
IPC: F23D11/28
Filed: 1945-03-20
Abstract: 580,836. Spray burners. AKTIBOLAGET GOTAVERKEN. March 20, 1945, No. 7033. Convention date, March 14, 1944. [Class 75 (i)] In an oil burner with a a baffle and a collecting device by means of which a controllable portion of the fuel jet is kept from the combustion zone, a guiding means is provided so that the combustion air, which is controllable as to its quantity in relation to that of the fuel supplied is given a direction obliquely inwards toward the longitudinal axis away from the fuel nozzle. The guiding means may be constituted by two plates 6, 7 outside a rotary drum 2, the space between the plates tapering towards the outlet end, and the plate 6 being separated from the drum 2 by a space 12 to prevent the formation of a vacuum which might draw the flame backwardly. Guide blades 9, 10 may be provided outside the guiding means to impart a rotary motion to the air, these blades preferably overlapping one another to cover the outer portion of the air space entirely. The drum 2 has openings 4 so that excess fuel drains into the plate 6 and is carried off by a tube 11, which may be of elongated cross section and obliquely positioned so as to impart a turbulent motion to the combustion air. The fuel nozzle 1 may be displaceable to vary the fuel discharge through the opening 3.
Patent GB-828203-A (GB)
Title: Epoxylation products of unsaturated fatty acid amides and a process for their manufacture
IPC: C07D303/46
Filed: 1956-03-06
Abstract: The invention comprises epoxylation products of amides of unsaturated fatty acids of the formula <FORM:0828203/IV (b)/1> in which one of the substituents R1 and R3 may represent a saturated fatty acid acyl radical but otherwise the substituents R1 and R3 represent mono- or polyunsaturated fatty acid acyl radicals of at least 12 carbon atoms containing at least one double bond in an isolated position, which double bond is separated from the -CO-NH-group by at least one carbon atom being exclusively linked by saturated linkages, and in which R2 is an aromatic, alkyl-aromatic, cyclo-aliphatic or aliphatic (particularly alkylene) radical of at least 2 carbon atoms, the NH- groups being linked to different carbon atoms.  The radicals R1 and R3 are preferably derived from oleic and/or linoleic acid or from soybean oil fatty acid, the latter containing a small proportion of saturated constituents leading to products in which one of the radicals R1 and R3 is saturated.  The products are obtained by reacting the amide R1-NH-R2-NH-R3 with a per-acid (especially peracetic acid or a mixture of formic acid and hydrogen peroxide), at a temperature of 10 DEG  to 60 DEG  C., in an inert solvent consisting of at least one non-polar solvent having a dielectric constant of at least 5, or consisting of a mixture of at least one polar solvent and at least one non-polar solvent, at least one of said non-polar solvents having a dielectric constant of at least 5.