baber/WOPTO huggingface dataset:
Patent GB-1443658-A (GB)
Title: Pyrotechnic gas generator
IPC: C06D5/00
Filed: 1974-06-11
Abstract: 1443658 Pyrotechnic compositions SOC NATIONALE DES POUDRES ET EXPLOSIFS 11 June 1974 [26 June 1973] 25893/74 Heading C1D [Also in Division F1] A solid charge for use in a combustion gas generator comprises: 10% cellulose triacetate; 86% potassium perchlorate; 3À5% tricresyl phosphate; 0À5% acetylene black, and is in the form of hollow sticks. The charge has a combustion time of 16 milliseconds and ignites to give a pressure of 100 bars at a temperature of 1700‹ C. The ignition device comprises: 37% zirconium; 63% cupric oxide.
Patent GB-618969-A (GB)
Title: Improvements in screw propellers with adjustable blades
IPC: B63H3/04
Filed: 1946-08-29
Abstract: 618,969. Variable-pitch propellers. ABBEY, A. (Aktiebolaget Jonkopings Motorfabrik). Aug. 29, 1946, No. 26012. [Class 114] To eliminate changes of volume in the space inside the boss, the operating rod 7 is provided with an extension 13 which passes into a aperture 12 open to the sea. Leakage is prevented by packing rings 14, 15 and a screen 21 prevents solid impurities entering the space.
Patent GB-779806-A (GB)
Title: Aromatic diisocyano-diisothiocyano-and isocyano-isothiocyano-compounds and polymers obtained therefrom, and the preparation of such compounds and polymers
IPC: C08G18/81
Filed: 1955-09-12
Abstract: Polyurethanes and polythiourethanes are obtained by condensation of polyhydroxy bodies such as polyhydric alcohols, polyalkylene glycols, and polyesters or mixed polyesterpolyesteramides with aromatic compounds containing two groups of the formula -N=C=X, in which X, which may be the same or different in each of the said groups, is oxygen or sulphur, attached to two nuclear carbon atoms, each of the nuclear carbon atoms in ortho positions to the -N=C=X groups being attached by a C-C linkage to an organic radical (see Group IV (b)). In examples: (1) durene diisocyanate is reacted with 1.4-butanediol, (2) durene diisothiocyanate is reacted with 1.10-decanediol, (3) durene diisocyanate is reacted with a polyester produced from adipic acid and a mixture of ethylene and propylene glycols.ALSO:The invention comprises aromatic compounds containing two groups of the formula -N = C = X, in which X, which may be the same or different in each of the said groups, is oxygen or sulphur, attached to two nuclear carbon atoms, each of the nuclear carbon atoms in ortho positions to the -N = C = X groups being attached by a C-C linkage to an organic radical.  The products may be used to prepare polymers (see Group IV (a)).  They may be made (1) from the corresponding amines and phosgene or thiophosgene; (2) the di-isothiocyanates may be obtained from the corresponding amines, carbon bisulphide, ammonium hydroxide and lead nitrate; (3) the mixed isocyano-isothiocyano compounds may be made by heating the di-isothiocyanates with mercurous oxide.  In examples, the following substances are made by reacting the corresponding diamines with phosgene or thiophosgene in chlorbenzene in presence of hydrogen chloride: durene di-isocyanate, durene di-isothiocyanate, prehnitene di-isocyanate, isodurene di-isocyanate, mesitylene diisocyanate, mesitylene di-isothiocyanate, 1.4-dimethyl - 2.3 - di-isocyanobenzene, 1.2 - diisocyano - 3 - methyl - 5.6.7.8 - tetrahydronaphthalene, 1.4 - dimethyl - 2.3 - di - isocyanonaphthalene, 3.5.31.51 - tetramethyl - 4.41 - di isocyanodiphenyl, bis -(2 - isocyano - 3 - methyl-phenyl) methane. The products may be reacted with ethyl, isopropyl, allyl, tert.-butyl, or decyl alcohols to give carbamates.
Patent GB-261472-A (GB)
IPC: C07C37/20
Abstract: 261,472. Chemische fabriken Dr. K. Albert Ges., Amann, A., and Fonrobert, E. Aug. 19, 1925. Phenol-aldehyde condensation products; phenolalcohols.-In a process for making condensation products from phenolic bodies and aliphatic aldehydes, the phenol is added gradually in small portions to an excess of aldehyde, the quantity of aldehyde employed being at least the largest quantity capable of being bound by the phenol, which is determined by the number of free o- and ppositions relative to the hydroxyl group of the phenol employed. In addition to phenol itself, cresols, xylenols, and naphthols may be used, as well as bodies containing two phenol rings obtained by condensing phenols with acetaldehyde, acetone, or the like; formaldehyde and acetaldehyde are suitable aldehydes. The phenols may be added in the liquid state directly to the aldehyde, or they may be dissolved in alkali or other solvent. The process may be carried out at the ordinary temperature or while cooling. The products consist of polyalcohols and are in many cases thinly-liquid oils which can be readily purified by washing with water; they may be used for the manufacture of synthetic resins. Hydroxides of alkaline earth metals, particularly barium, may be used for dissolving the phenols, the barium being precipitated by sulphur or carbonic acid at the close of the reaction. In examples, phenol, cresylic, acid, and dioxydiphenylpropane are condensed with formaldehyde, and phenol and dioxydiphenylethane are condensed with acetaldehyde.
Patent GB-1013519-A (GB)
Title: Rotary piston machines
IPC: F02B55/02
Filed: 1963-07-02
Abstract: 1,013,519. Rotary-piston engines and pumps. CURTISS WRIGHT CORPORATION. July 2, 1963 [July 2, 1962], No. 26178/63. Heading F1F. In a rotary-piston I.C. engine of the trochoidal n and n+ 1 lobe type, cooling of the piston 22 (Fig. 1) is effected by alternately spraying a quantity of oil through nozzles 82, 86 into each of a plurality of compartments 64 and draining it therefrom, the number of such cycles per compartment per revolution of the piston being equal to the number of lobes in the casing 16. The compartments are divided by a partition 68 containing passages 74, the oil passing into or out of, each compartment through annular apertures or gaps 78 on either side of the piston. Oil is fed to the nozzles through passages 36, 80, 84 in a power-output shaft 18 and an eccentric 20, oil for a bearing 34 being fed thereto from passage 36 through a radial passage 38 and an annular groove 35. The planetary motion of the piston causes the oil to circulate within each compartment (Figs. 3A to 3G, not shown) before it is discharged through gaps 78 into annular gutters 88 and passages 90. The nozzles are situated relative to a point P (Fig. 4) on the eccentric such that they direct oil into compartments from which oil has drained. Nozzle 82 may be replaced by a nozzle lodged in a further passage in the eccentric (Fig. 5, not shown), a deflector plate for the oil spray being attached to the side of the eccentric. One or other of the nozzles may be omitted, or the same kind of nozzle arrangement may be provided on both sides of the piston. Alternatively, or additionally, the compartments may be fed with oil leaking from the ends of bearing 34, the leakage being increased by a flat 92 (Fig. 7) on the eccentric. Obstruction of the gaps 78 by an internally-toothed gear 44, which is attached to the piston and meshes with a gear 42 made integral with a fixed boss 52 supporting shaft 18, is prevented by cut-outs 76 therein which are aligned with the compartments 64, oil seals 39 being lodged in the end faces of the piston externally of these gears. Modifications of the engine (Figs. 8, 9, 11, 12, 13, not shown) mainly differ from that shown in respect of the arrangement of the gearing and the apertures or gaps through which oil is fed to the compartments in the piston; and for details of these modifications the specification should be consulted. As shown in Figure 10, separate compartments may be formed in the apices of the piston, these compartments being filled with a metal of low melting-point e.g. sodium, potassium or a mixture thereof, whereby during operation of the engine the metal in a molten condition circulates in the respective compartments and transfers heat from the apices to the oil in adjacent compartments 110. Transfer of heat may be improved by fins 116. The invention is also applicable to other kinds of rotary-piston machines, e.g. pumps and compressors, wherein the piston has a plurality of apices in contact with the inner peripheral surface of an outer body or casing and rotates in a planetary manner.
Patent GB-1066151-A (GB)
Title: Broad-band directional antenna
IPC: H01Q5/335
Filed: 1965-06-22
Abstract: 1,066,151. Aerials; aerial amplifiers; tunnel diode amplifiers. ROHDE & SCHWARZ. June 22, 1965 [June 24, 1964], No. 26259/65. Headings H3Q, H3T and H4A.  A broad-band dipole array operating on the logarithmic periodic principle in which the physical lengths of the elements is reduced in consequence of the insertion therein of loading networks S 1  to S n , Fig. 1, is further provided with phase-matching networks V 1  to V n-1  connected in series in the common feeder between consecutive dipoles, so that the spacings between the said dipoles may be reduced. The loading networks may comprise inductors 7 to 10, Fig. 2 (not shown), one being inserted between each dipole element and the appro-- priate leg of a feeder 6, and tuning capacitors 11, 12, one being connected across the feeder at each dipole. A phase-matching network may comprise a capacitor 13 connected across the feeder. Amplifiers comprising tunnel diodes D1, Figs. 3, 4 (not shown), or other active elements may be inductively coupled to the dipoles, with power supply over a separate feeder. As described, two insulating boards 33, 34, Fig. 5 (not shown), carry the halves of the dipoles, such as 35, 36, and the halves 37, 38 of an H.F. strip transmission line. Cores 39, 40 on which are wound, respectively, coils L 1 , L 2 , L 3  and L<SP>1</SP> 1 , L<SP>1</SP> 2 , L<SP>1</SP> 3  are inserted in holes in the insulating boards 33, 34. The dipole 35, 36 is coupled through the coils L 2 , L<SP>1</SP> 2 , a tuning capacitor C 2  being interposed. The H.F. strip transmission line is coupled through the coils L 1 , L<SP>1</SP> 1  and an amplifier is coupled through the coils L 3 , L<SP>1</SP> 3 . The amplifier comprises a tunnel diode D 1  shunted by a capacitor C 1  and in series with a resistor R 1  shunted by a capacitor C 3 . Direct current power supply is by twisted leads 47 which are passed through sleeves 48, made of a material which absorbs H.F. energy, and are connected across the resistor R 1 . A similar amplifier is provided for each element of the array. The array may feed several receivers, each tuned to a different frequency within its operating band. It may also be used for transmission, when the amplifiers may be the output stages of the transmitters. It is stated that adjustments may be made to .  produce so-called super-gain operation of the array.
Patent GB-321276-A (GB)
Title: Improvements in or relating to matrix-positioning mechanism for type-casting or typographic machines
IPC: B41B5/02
Filed: 1928-09-13
Abstract: 321,276. Pierpont, F. H., and Lanston Monotype Corporation, Ltd. Sept. 13, 1928. Type-casting machines.-Relates to means for adjusting the matrix relatively to the mould in machines in which the matrix is adapted to be raised from, and lowered on to, the mould. The matrix is operated by a reciprocating plunger C, Fig. 1, having an enlarged head C<1>, which engages lips or grooves a on the matrix-carrier A. The carrier has two jaws or clips A', A<2>, Fig. 4, adapted to engage grooves in the opposite sides of the matrix X. The jaw A<1> is loosely mounted on a stem A<3> which screws into the body of the holder, the jaw being held against a head A<4> on the stem by a spring A<5>. The other jaw A<2> is mounted on a stem passing into the stem A<3>, and is pressed against the matrix by a spring. The jaw A<2> can be retracted by means of a head A<10>, and the position of the matrix is adjusted by rotation of the head A<4>. The matrix-carrier slides in a guide B, fixed to the top of the mould, and having an open side to accommodate the handle A<6>, Fig. 3, of the carrier. The carrier is held in contact with an adjustable gauging-plate B<2> by a sliding stop or guide B<6>, which enters a groove in the carrier, and is engaged by a spring-pressed lever B'.
Patent GB-425990-A (GB)
Title: Process for the manufacture of azodyestuffs containing copper
IPC: C09B45/01
Filed: 1933-09-23
Abstract: Complex copper compounds of azo-dyes are made by treating a trisazo dye of the general formula <FORM:0425990/IV/1> in which R1 may be substituted and R2=a benzene or naphthalene residue containing at least one SO3H group, with an agent yielding copper under conditions such that the two methoxy groups are split up.  They yield fast blue to grey shades on cotton.  In examples: (1) the dyestuff <FORM:0425990/IV/2> is heated with aqueous copper sulphate and ammonia; (2) the corresponding dyestuff from 2-naphthol-5 : 7-disulphonic acid is similarly treated.  Organic bases may be used instead of ammonia. Specification 366,580 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the treatment of dyestuffs of the formula <FORM:0425990/IV/3> in which R1 and R4 may also represent carbazole residues.  The following examples are given: (1) the dyestuff 4 : 4<1>-diamino-5 : 5<1>-dimethoxy-2-methyl-1 : 1<1>-azobenzene-2<1>-sulphonic acid \sQ 1-naphthol-4 : 8-disulpho acid is treated with ammoniacal copper sulphate; the dyestuff 4 : 4<1>-diamino-5 : 5<1>-dimethoxy-1 : 1<1>-azobenzene \sQ 2-amino-5-naphthol-1 : 7-disulphonic acid may be similarly treated; (2) the dyestuff 5-nitro-2-anisidine --> 1-naphthol-3 : 6-disulphonic acid is reduced with alkaline glucose and the product coppered as above; the coupling component may be 8-chlor-1-naphthol - 3 : 6 - disulphonic acid or 1 naph-thol - 3 : 8 - disulpho acid and the diazo component may be p  5-nitro-4-chlor- or 4-methyl-2-anisidine or 5-nitro-2-amino-1 : 4-dimethoxy-benzene; (3) the dyestuff 5-nitro-2-anisidine --> 2-naphthol- 5 : 7-, 3 : 6- or 3 : 7-disulpho acid is reduced as above; (4) the dyestuff 5-nitro-2-anisidine --> (alkaline) 2-(3<1>-carboxyphenyl) amino-8-naphthol-6-sulpho acid is reduced with alkaline grape sugar and coppered as above; N-(3<1>-sulphophenyl)- or N-(4<1>-carboxyphenyl) - 2 : 8 : 6 - acid, N-(3<1>-carboxyphenyl) - 2 : 5 : 7 - acid or 2 - amino-5-naphthol-1 : 7-disulpho acid may be used as coupling component; (5) the dyestuff 5-nitro-2-anisidine --> 1-hydroxy- or 1 : 8- or 2 : 8-dihydroxycarbazole-3 : 6-disulpho acid is reduced and coppered as above.  The products also dye regenerated cellulose.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1070436-A (GB)
Title: Improvements relating to methods of mooring ships
IPC: B66D1/30
Filed: 1965-06-22
Abstract: 1,070,436. Winding drums. PUSNES MEK VERKSTED, A.S. June 22, 1965 [June 24, 1964], No 26459/65 Headings B8B and B8M A drum for an automatically tensioned mooring winch comprises a fixed radial flange which divides the drum axially into two separate parts, a first part for storing mooring rope not being used and a second part around which the rope to be used is wound and by which tension is applied to the rope, a slot in the flange permitting the rope to extend from one part to the other.
Patent GB-322555-A (GB)
Title: Improvements in cores for electric induction coils
IPC: H01F1/24
Filed: 1928-09-14
Abstract: 322,555. Callender's Cable & Construction Co., Ltd., Brazier, L. G., and Urmston, J. Sept. 14, 1928. Inductances. -A core for an inductance coil, particularly a loading-coil for long distance telephony, comprises powdered magnetic material and insulating material, for separating the magnetic grains, mixed and consolidated by high pressure, the insulating material being kaolin reduced to a state of subdivision in which the particles are of colloidal dimensions. Shellac may be employed as a binder. The kaolin is preferably produced by cataphoresis by the osmotic process. The cores are manufactured without the use of temperatures high enough to cause partial or incipient fusion of the kaolin. The mixture may contain up to 10 per cent by weight of kaolin, which may be dried and mixed with the iron powder by mechanical agitation, or the kaolin may be suspended in alcohol or other volatile liquid, the suspension mixed with the powdered iron, and the alcohol evaporated.
Patent GB-801885-A (GB)
Title: Improvements in or relating to directional aerials for the transmission or reception of electromagnetic waves
IPC: H01Q13/20
Filed: 1955-09-15
Abstract: 801,885. Aerials. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Sept. 15, 1955 [Sept. 15, 1954], No. 26508/55. Class 40 (7). A travelling wave aerial consists of an imperforate conductive plate 1 and at least one plate pierced with holes the centres of which form a regular system of quadrilaterals. As shown in Fig. 2, there are two such perforated plates 2a and 2b. They may be provided with sets of circular holes as shown in Fig. 3. All the holes are of the same size and the plates 2a and 2b are parallel to plate 1. The aerial is fed by means of a waveguide 4 and horn 3, the energy being polarized perpendicularly to the planes of the plates. The direction of propagation is OD making an angle # with the perpendicular to the plate 1 at O. The angle # is a function of the wavelength and the dimensions of the aerial construction in particular the distances between consecutive holes in the perforated plates which preferably lie between 0.4# and #. In a modification the diameter of the holes in the perforated plates is varied to produce a law of energy distribution at the surface of the external plate symmetrical in relation to the middle of the aerial. At the same time it is arranged that the field at the free end of the aerial is weak to avoid having a reflector there. In this modification the plates are no longer parallel to each other but diverge slightly. To obtain a symmetrical field pattern two sets of plates meeting at an obtuse angle of F - 2# may be fed at their junction point. As shown in Fig. 6, the feed waveguide 4 is extended by a horn 3 to feed two chambers 5 and 6 partially separated by matching rod 7. The imperforate plates 1 and 1<1> are attached to the rear walls EF and E<1>F<1> of these chambers and perforated plates 2a and 2<1>a to the front walls. Further perforated plates 2b and 2<1>b may also be provided. In a modified form of aerial for use with metric' waves the perforated plates may be in the form of metal grids of side between 0.4A and A.
Patent GB-174397-A (GB)
Title: Improvements in machines for removing the burr from the top and bottom faces of nutsand for removing the burr from the heads of screw bolts and simultaneously pointing or rounding off the end
IPC: B23C3/00
Filed: 1920-09-16
Abstract: 174,397. Fries, A. de. Sept. 16, 1920. Turning nuts and bolt heads.-Nuts, bolts, &c. are finished by a multiple-spindle machine having spindles arranged in staggered relation on opposite sides of a step-by-step movable workholder. The spindles c, d are fed axially by levers g, h operated by a cam shaft geared to the spindle d, the work turret l is provided with hexagonal or other bushes to suit the work and the thrust of the work is resisted by abutments o, p that may be axially movable and may be smaller than the work to pass within any peripheral burr that may exist. The turret may be replaced by a link chain or equivalent work-holder. Fig. 6 shows special bushings for use with bolts, a bifurcated abutment q being provided in this instance. Instead of or in addition to facing tools, shank turning or threading tools may be provided. Specification 156,915 is referred to.
Patent GB-535420-A (GB)
Title: Improvements in or relating to belt drives
IPC: F16H7/14
Filed: 1939-09-26
Abstract: 535,420. Tensioning arrangements for belt gearing. BRITISH BELTING & ASBESTOS, Ltd., and HORNSBY, J. Sept. 26, 1939, No. 26660. [Class 80 (i)] In belt drives wherein the driving or driven element, e.g. a motor or dynamo 10, Fig. 1, is pivotally mounted on an axis P parallel to its shaft and in which the slack side of the belt extends directly between the pulleys 10a, 11 without passing over an intervening pulley, the pivotal axis P lies outside the pulley 10a on the motor &c. but in or substantially in the plane of the tight side T<1> within limits according to which the radial distance a of the plane of the tight side T<1> from the axis is not more than one-seventh of the radial distance b of the plane of the slack side T<2>. In Fig. 5, the motor 10 is supported by a frame 12 pivoted at P just outside the tight strand T<1> The effective weight of the motor may be modified by weights 16 on an arm 15. The frame 12 may be adjustable on bearers 13 by screws 14 passing through lugs 13a to permit of initial tensioning and to compensate for additional stretch of the belt. In a modification the weights 16 are arranged to act as a counterpoise. In a further modification the motor &c. is arranged with its axis above the axis of the pulley 11. By placing the pivotal axis inside the tight strand T<1>, the countermoment holding the motor in position will, as the transmitted load increases, ultimately become zero, in which case the motor will swing around the pivot against a buffer stop to slacken the belt and cut out the overload. Graphs are given showing the relation between the tensions in the tight and slack sides T' and T<2> for the cases where the pivotal axis is arranged (1) in (2) outside and (3) inside the plane of the tight side of the belt.
Patent GB-407888-A (GB)
Title: Improvements in or relating to photographic cameras with telemeters
IPC: G03B13/20
Filed: 1933-09-29
Abstract: 407,888. Cameras. ZEISS IKON AKT.- GES., and NOWICKI, A. M., 72, Schandauerstrasse, Dresden, Germany. Sept. 29, 1933, No. 26855. [Class 98 (i).] In a photographic camera in which the objective is focused by movement of the front end thereof, and having a base telemeter, the optical means such as mirrors or prisms serving for deflecting the measuring rays of the telemeter are controlled by the focusing movement of the front lens. As shown, inverted, in Fig. 1, the telemeter 1 s carried by a plate 6 rotatably mounted upon the shutter housing 2 whereby the telemeter may be properly disposed for upright or horizontal views. The movable mirror 17 of the telemeter is controlled by a lever actuated by a front or rear flange on the focusing mount 4 of the front lens. The telemeter is furnished with a magnifying eyepiece 11 and is arrested in vertical position by a pin 9 on the shutter casing engaging the end of an arcuate slot 8 in the plate 6. Fig. 3 shows a modification in which the telemeter 1 is fixed to the casing 2 and a prism is rotatably mounted in a casing 13 behind the aperture 10 so that the viewing opening 15 may be adjusted according to the camera position. A spring loaded lever 16, carrying the movable mirror 18, is pivoted at 17 and is furnished with an extension bearing against the rear edge of the front lens mount 4.
Patent GB-1318592-A (GB)
Title: High safety motor vehicles
IPC: B62D37/02
Filed: 1970-06-03
Abstract: 1318592 Vehicle bodies J J-M J GERIN 3 June 1970 [3 June 1969] 26882/70 Addition to 1240147 Heading B7B In a vehicle with a streamlined body and having adjustable individual suspension at each wheel to allow the vehicle to occupy a low position for high speed travel and a high position at slow speed, as described Specification 1,240,147, the suspension is arranged so that in the low position the vehicle axis PP<SP>1</SP> forms a negative angle a and the plane of two horizontal tail fins 3BG (3BD) (Fig. 2, not shown) a negative angle #, # being at least twice a, relative to the horizontal. The horizontal fins 3BG (3BD) connect the rear wheel housings 2BG (2BD) to the vehicle body. The suspension is also arranged so that the body may occupy a horizontal position, or be slightly positively inclined, when in the high position for slow speed.