baber/WOPTO huggingface dataset:
Patent GB-472207-A (GB)
Title: Improvements in or relating to recessed ploughs for two-layer ploughing
IPC: A01B13/14
Filed: 1936-11-12
Abstract: 472,207. Implements for working land. SACK, O., and SACK, H., (trading as SACK, R., [Firm of]). Nov. 12, 1936, Nos. 30951, 30952, and 30953. Convention dates, Nov. 18, 1935, Jan. 4, 1936, and Jan. 20, 1936. [Class 6 (i)] In a plough for two-layer ploughing, having its working surface cut out on one side, the cutting-edge of the share extends between the layers to be separated over a breadth corresponding to the breadth of the neck-piece connecting the sleeve to the mouldboard and extends to the full depth of the furrow laterally beyond the neck-piece. The share comprises three parts a<1>, a<2>, a<3>, Fig. 1, arranged approximately in the form of the letter Z, but at right angles to one another. On the part a<1> is a neck-piece a4 forming a continuous surface with an intermediate piece b and the mouldboard c. The cutting edge a<6> of the vertical part a<2> is inclined forwardly and downwardly and the landside surface of the part a<3> is in the line of movement. The wing part a<3> is inclined upwards towards the rear and extends laterally approximately the breadth of a furrow, the inclination of the outer end being less than that of the remainder. The cutting edge of the wing part a<3> is parallel to that of the part a<1>. The piece b is removable to allow of the mouldboard being placed in contact with the neck-piece a<4>. The curved mouldboard c has a cutting edge c<1> behind and above the rear edge of the wing part a<3>. The soil slice cut by the part a<1> is turned over by the mouldboard c<1>. The subsoil severed by the part a<3> is raised slightly and then falls, the upper part of the soil thus loosened being then cut off by the edge c<1> and turned over. The outer end of the wing part a3 undercuts part of the next furrow slice.' The cutting edges and the working surfaces of the parts a2, a3 may be armoured with hard metal, electrolytically or by welding &c. The part a3 may be formed as an arm a<13>, Fig. 4, to carry a sub-soil share a<12> having a dove-tailed groove into which the arm a<13> fits. The share a<12> is secured by a screw and has a duck-billshaped point a<15> shaped to engage in front of the vertical part a<2>. In a modification a share a<12> is secured by two screws with its front part in front of the arm a<13>, and with a protecting piece extending in front of the part a<2>. The share a is fastened to the supporting body g by three screws f<1>, f<2>, f3 and is provided with a strip all engaging in a recess as shown. Projecting parts g2, g3 on the body g serve for lateral support and are staggered relative to one another in the working direction. The plough may be converted for single-layer ploughing by removing the share a and mouldboard c and substituting an ordinary share and an ordinary mouldboard, these being secured by the two screws f <1> f<2> and supported by a strut projecting from the body g. Any difference in thickness between the mouldboard and the back of the share may be compensated for by bending the supporting strut or by means of a spacing member.
Patent GB-618327-A (GB)
Title: Improvements in or relating to batteries of tubular dielectric condensers
IPC: H01G4/38
Filed: 1946-10-17
Abstract: 618,327. Condensers. PHILIPS LAMPS, Ltd. Oct. 17, 1946, No. 30968. Convention date, Jan. 28, 1943. [Class 37] In connecting electrically in series a battery of condensers arranged spatially parallel to each other and each having a tubular dielectric, two unipolar coating parts on the outer wall of a condenser are mechanically and electrically connected to two unipolar coating parts on the outer wall of a further condenser by strips 8, 10 secured to the coatings 5 ... 7, the plane of the strips being perpendicular to the axes of the condensers. The strips engage each tubular dielectric for a part of the circumference thereof and may be soldered, welded, riveted or screwed thereto. Coating parts on ceramic dielectrics may be silvered for soldering. The end coating parts 6, 7 are coherent with the inner coatings. Current supply leads 16, 17 are applied to the coatings or to the strips by which the condensers may be mounted.
Patent GB-1310402-A (GB)
Title: Electrohydraulic positioning drives
IPC: F15B18/00
Filed: 1970-06-25
Abstract: 1310402 Fluid pressure servomotor systems VEREINIGTE FLUGTECHNISCHE WERKE-FOKKER GmbH 25 June 1970 [25 June 1969] 30969/70 Heading G3P A control system has the pistons 1a, 2a of two cylinders 1, 2 secured together by a crossbeam 5 and controlled by servo valves 3a, 3b which are connected to a hydraulic supply via a shut-off valve 13 and are controlled by an electrical comparator circuit 4. Each piston is connected to a potentiometer 6, 7 which feeds a signal representative of the piston position to the comparator which signal is compared with the input. The two cylinders are inter-connected via restrictors 9 and an auxiliary cylinder 8 in which a piston 8a moves in response to a pressure difference in the two cylinders to adjust the potentiometer 6 so as to cause the pressure difference to be eliminated. In the event of a large pressure difference a switch 11 is actuated to operate the valve 13 to disconnect the servo valves from the supply. In modifications the piston 8a is connected to a separate potentiometer the pistons 1a, 2a are mounted on a common piston rod and the potentiometer actuated by the piston 8a is replaced by a pressure-measuring transducer. The system shown may be duplicated with the rods of the two pairs of pistons 1a, 2a inter-connected by a beam and a third auxiliary chamber 8 and associated piston and potentiometer is then provided to equalise the pressure in the cylinders 1, 2 between the pairs of cylinders.
Patent GB-877249-A (GB)
Title: New polyazo triazine dyestuffs
Inventor: ANDREW HERBERT FRANCIS
IPC: C09B62/08
Filed: 1958-09-29
Abstract: The invention comprises dyes of formula:-  <FORM:0877249/IV(c)/1> where D is a residue of the benzene series which may contain an azo group, X is a naphthol sulphonic acid residue, R is H or alkyl, Z is Br or Cl and E is a residue of a phenol, acetoacetarylide, pyrazolone, naphthol or 41, 61-di-halogeno-11, 31,51 - triazin- 21-ylaminonaphthol.  They may be made by treating appropriate aminoazo dyes with cyanuric bromide or chloride.  When D contains a metallizable group in the #s-position to one or both azo links the products may be metallized.  Indicated residues for D are from benzene, diphenyl, benzanilide, diphenylurea, diphenylamine, phenylazophenyl, diphenylethane, 1, 4-bis(benzoylamino) benzene and 1, 2-bis (benzoylamino) ethylene. R is specified as methyl, ethyl, propyl and butyl.  Representative of indicated compounds from which E is derived are phenol, #s-hydroxybenzoic acid, acetoacetanilide, 5-sulphoacetoacet-#s-anisidide, 1-(41-sulphophenyl)- 3-methyl- and -carboxy- 5-pyrazolone, 3-carboxy- 5-pyrazolone, 2-naphthol, 5, 8-dichloro-1-naphthol, 1-naphthol- 5-mono-, -3, 8-di- and -3, 6, 8- tri-sulphonic acids, 2-naphthol-6-mono-and -6, 8- di-sulphonic acids, 1, 8-dihydroxynaphthalene-3, 6-disulphonic acid, 2-benzoyl-and -phenyl-amino-8-naphthol-6-sulphonic acid, 1-(41, 61-dichloro-11, 31, 51-triazin-21-yl) amino- 8-naphthol- 3, 6-disulphonic acid and 1-N-(41, 61-dichloro-11, 31, 51-triazin-21-yl)-N-butylamino-8-naphthol-3, 6-disulphonic acid. Specified as metallizable groups are OH, O Alkyl, COOH and O CH2COOH. Specified metals are Cu, Ni, Co and Cr.  Metallization may be effected before or after treatment of the aminoazo dyes with cyanuric halides.  The dyes are preferably isolated at pH 6-8 vide Specifications 838,337 and 842,933.  The dyes and their metal complexes colour cellulosic textile materials, especially when used as in Specification 797,946, in conjunction with treatment with an acid-binding agent. A preferred class of dyes is that where E is a phenol residue and the other end component is <FORM:0877249/IV(c)/2> where R and Z are as above and the naphthalene nucleus optionally contains an additional SO3H group in these 3 or 4 position, since the dyes yield colours which do not bleed on storing especially in a humid and acidic atmosphere.  Examples are provided of the preparation of the dyes and their use in colouring cellulosic textile materials in shades of red, blue, green and grey.  In the Provisional Specification D is any aryl residue. Specification 838,728 also is referred to.
Patent GB-1168598-A (GB)
Title: Triggered Spark Gap Device for Switching High Current Intensities Under High Voltage
Inventor: DUBOIS JEAN-CLAUDE
IPC: H02M9/04
Filed: 1968-06-28
Abstract: 1,168,598. Spark gaps. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 28 June, 1968 [29 June, 1967], No. 30993/68. Headings H1D and H1X. A triggered spark gap comprises a cylindrical anode 1, a cathode 3 comprising a ring 4 carrying radial partitions 5 terminating in plates 6, and at least one striking electrode 2 disposed in the space limited by two radial planes touching the edges 6a of two consecutive plates 6 and by the annular segment 4a of the cathode lying between these planes. Preferably the electrode 2 is disposed as shown in the outer portion of this space beyond the cylindrical surface defined by the plates 6. The anode 1 has three portions of different diameters (Fig. 3, not shown) enabling three different gap sizes to be selected by moving the anode axially along a shaft by means of a lever. A stream of gas may be forced between the electrodes, or the spark gap may be placed in a container filled with an inert gas under pressure.
Patent GB-520693-A (GB)
Title: Improvements in or relating to electric measuring and testing apparatus
IPC: G01D15/14
Filed: 1938-10-27
Abstract: 520,693. Indicating - apparatus. STANDARD TELEPHONES & CABLES, Ltd., BLACK, D. H., and FREMLIN, J. H. Oct. 27, 1938, No. 31032. [Class 106 (iv] [Also in Group XXXVI] Apparatus for recording the fluctuations of two interrelated variables comprises two mirror galvanometers G<SP>1</SP>, G<SP>2</SP> each having their movement angularly displaceable on a vertical axis, a prismatic system E being disposed in the path of the light rays between the mirrors for rotating the plane of deflection through 90 degrees so that the light spot moves over a recording surface or a scale 1 of rectangular coordinates. Electrostatic instruments can be employed, and the variables may be dependent or independent, and may comprise the relationships volts/volts, volts/amps, amps/amps, temperature/resistance and temperature/volts. In one arrangement for measuring anode current in relation to grid volts, the galvanometers are connected in the respective circuits and the grid bias is manually adjusted to control the light spot. Three prisms are located in the path of the rays between the galvanometer mirrors having their faces arranged so that the rays are turned through 90 degrees and leave the prisms in the same direction as they entered. The measurements of screen current in relation to anode current, and secondary emission, are referred to. The pencil or rays can be in the form of four rectangles and a central circle of light to facilitate reading on a recording surface which may be provided with a template curve.
Patent GB-381745-A (GB)
Title: Improvements in and relating to carriages or mountings for anti-aircraft guns
IPC: F41A23/32
Filed: 1931-11-09
Abstract: 381,745. Spring suspension systems. SCHNEIDER ET CIE. 42, Rue d'Anjou, Paris. Nov. 9, 1931, No. 31063. Convention date, July 10. [Class 108 (ii).] The axle h, Figs. 8, 9, and 12, carrying the wheels i of an anti - aircraft gun mounting, is mounted in bearings g provided with hinged bearing caps g<1>. At each end of the axle is a rocking arm k<1>, h<2>, the arm h<1> of which carries a stubaxle h<3> for the wheel i. The other arm h<2> is detachably secured to a laminated spring j, the attachment being effected through the medium of a rod o and a removable pin 0<2>. The spring j is rockably mounted on a lever m which is journalled at one end on the axle h and is detachably secured at its other end to the arm f. This detachable connection is effected by means of a rocking lever m<2>, m<3>, which is pivoted centrally about the lever m and which rests with its ends positioned in bearings k on the arm f. A bearing cap k<1> serves to secure the rocking arm in this position. The spring is connected to the cradle c by pivoted links n. By this arrangement, the wheel train can be completely detached from the gun mounting, or, by removing only the pins 0<2>, the gun can be lowered on its wheels into the firing position.
Patent GB-359702-A (GB)
Title: Improvements in or relating to latch structures
IPC: E05B15/10
Filed: 1930-10-17
Abstract: 359,702. Night latches. WHITE, A. E., 5, Quality Court, Chancery Lane, London.-(McKinney Manufacturing Co. ; Liverpool Street, Pittsburg, U.S.A.) Oct. 17, 1930, No. 31116. [Class 44.] The bolt-head 11 of a latch is locked by a pin 13, Fig. 4, which is depressed by the movement of a member 12 relative to the bolt-head. On the member 12 abutting against a striking plate a lever 17 is turned about its pivot 19 under the action of a spring 15. The side of the lever 17 projects outwardly to engage a recess in the pin. The members 11, 12 are dovetailed together, Fig. 4, or they are pivoted together, Figs. 9 and 10. In the latter case the member 28 and the groove 29 for the spring 30 are of arcuate shape. The edge of the member 28 is recessed and inclined at 34 to engage a reduced part of the locking pin 33. Specification 302,524, [Class 44, Fastenings, Lock &c.], is referred to.
Patent GB-664688-A (GB)
Title: Arrangements for separating or combining the different frequency components of energy waves
IPC: H01P7/06
Filed: 1948-12-02
Abstract: 664,688. Electric filters systems. WESTERN ELECTRIC CO., Inc. Dec. 2, 1948 [Dec. 5, 1947], No. 31239/48. Class 40 (viii). An arrangement for separating energy of a selected frequency or band of frequencies from energy waves containing a number of discrete frequencies or frequency bands comprises an input hybrid structure with a pair of conjugate points connected by a pair of channels to conjugate points on an output hybrid and with filters in the channels that reflect the selected frequency back to the input hybrid with suitable phase relation that cause this frequency to appear at the point on the hybrid conjugate to the original input point. By phase adjustment without reflection the selected frequency may appear at the point on the output hybrid conjugate to the main output point. Both of these arrangements are reversible. As shown in Fig. 3 input at 200 to hybrid 202 divides between channels 204 and 220 and a selected frequency is reflected by filters 206 and 218. This frequency emerges at point 224 while the remaining bands leave hybrid 210 to undergo successive further separation as shown. Matching loads 214 complete the connections of the output hybrids. A hybrid construction for wave-guides as described in Specification 664,689 may be used. In a high-frequency construction shown in Fig. 9 hybrids 904 of this form are used-for input and output means and are connected by wave-guide channels. These contain rods 704 as shown in Fig. 8 with adjustable capacity terminations 706 which serve as adjustable resonant circuits to reflect the selected frequency. In the second arrangement of the invention with no reflection means the apparatus in the channels to produce the desired phase change consists of additional hybrid structures with reactive termination impedances whose values are chosen to give the required phase effect. These impedances may be cavity resonators. Specifications 643,162, 643,163 and 664,673, [Group XL (c)], also are referred to.
Patent GB-906630-A (GB)
Title: Bobbin holder for spinning machines and the like
IPC: D01H1/18
Filed: 1960-09-12
Abstract: 906,630. Bobbin holders for creels of spinning or twisting machines. KEYSER, J. J. Sept. 12, 1960 [Sept. 12, 1959], No. 31420/60. Class 120 (2). A bobbin holder for mounting a bobbin by means of its upper and lower ends on a creel of a spinning or twisting machine, comprises a suspension leg 4, 5, Fig. 1, depending from a holder bar 3 of the creel and arranged to lie outside a bobbin, and a lower arm 6 on the leg having bearing means 8 for the lower end of the bobbin sleeve, the holder also including upper bearing means 9 for the upper end of the bobbin sleeve. In Figs. 1 and 3 an arm 7 connects the leg 4, 5 to the upper bearing 9, the bearing 9 being suspended from a nut 24 within the bar 3 so that the holder may swing in pendulum-like manner. A vertically adjustable strand guide 10, comprising two interlocking parts, resiliently embraces the leg 4, 5. The upper and lower portions of the leg 4, 5 may be interconnected by screw-means enclosed by the guide 10 so that the spacing between the bearings 8 and 9 can be varied. Figs. 11 and 12 show various modifications of the bobbin holder and in which the upper bobbin bearing members 87, 97 are of spherical form. In those embodiments in which the upper bearing members are not connected by an arm 7 to the vertical leg, i.e. to leg 85 in Fig. 11 and leg 95 in Fig. 12, separate supporting bars 3<SP>1</SP> or 3<SP>1</SP>, 3<SP>11</SP> are provided to carry the members 87, 97.
Patent GB-1310964-A (GB)
Title: Zoom lens system
IPC: G02B15/22
Filed: 1970-06-29
Abstract: 1310964 Zoom lens system CANON K K 29 June 1970 [12 July 1969] 31437/70 Heading G2J A zoom lens system comprises a front positive component L 1  movable for focusing from infinity to a close distance and a negative variator consisting of a positive component L 2  and a negative component L 3 , these being movable without changing the distance between them for varying the focal length of the system, the component L 2  being movable forwards relative to the component L 3  when the variator is in the telephoto position in order to focus on an object in close-up. As L 2  is so moved so as to bring successively closer objects into focus, it can be shown that, using the nomenclature of Fig.3, where f 1 , f 2 , f 3 , are the focal lengths of the components L 1 , L 2  and L 3  respectively, so that as e is increased from zero, S 1 ' increases from a finite positive value to reach # at e = (f 2 -S 3 ) Fig. 4 (not shown). As e is further increased S 1 'becomes negative, and |S 1 |<f 1 , and minimum values of |S 1 '| and hence of |S 1 | are reached at e = (2f 2 -S 3 ). The minimum value of |S 1 |, that is the minimum distance at which focusing may be achieved, is zero if f 2  # (e+S 3 ). It may also be shown that the magnification of the system increases quadratically as e is increased Fig. 5, (not shown). Numerical data are given for a zoom system with and without the independantly movable positive component L 2 .
Patent GB-339415-A (GB)
Title: Improvements in or relating to electrical discharge tube amplifiers
IPC: H03F3/02
Filed: 1929-10-16
Abstract: 339,415. General Electric Co., Ltd., and Oliver, D. A. Oct. 16, 1929. Thermionic amplifiers. - A thermionic amplifier comprises a pentode or screened-grid valve 4 connected to a circuit 1 the impedance of which increases with the frequency, and an ohmic resistance 5 shunted across the output terminals. The impedance may be a loud-speaker and a condenser may be connected in parallel with the resistance. The value of the resistance is such that the dynamic characteristic of the valve lies within the limits of anode voltage consistent with the absence of serious distortion. Reference has been directed by the Comptroller to Specification 341,403, [Group XL].
Patent GB-1195783-A (GB)
Title: Improvements in or relating to Steering Shafts in Vehicles
IPC: B62D1/19
Filed: 1968-07-02
Abstract: 1,195,783. Collapsible steering shafts. SOC. ANON. ANDRE CITROEN. 2 July, 1968 [13 July, 1967], No. 31463/68. Heading B7H. A motor vehicle steering shaft 1 incorporates near its front end a collapsible bellows section 3 and is mounted near its rear end on the vehicle body by means which include a ball bearing 4 and a fixed bearing housing 5 and are arranged to allow the shaft to move freely in the forward axial direction but to impede movement in the rearward axial direction. The bellows section 3 is arranged to collapse to absorb impact energy when subjected to shock loading above a predetermined value but retains sufficient torsional rigidity to transmit steering torque. A bearing flange 6 freely mounted on the shaft. is urged into contact with the bearing 4 by a spring 7 housed in a casing 8 secured to the shaft If in an accident a rearward shock is exerted on the forward end of the shaft 1, the housing 8 moves into contact with the flange 6 so that further rearward movement of the shaft 1 is prevented and the bellows section 3 collapses, whereas if the driver is thrown against the steering wheel 2, the shaft 1 is free to slide through the bearing 4 and collapse the bellows section 3. In another embodiment, Fig. 4 (not shown), the bearing flange is replaced by a sleeve (11) and a tubular distance piece (15) is interposed between a spring casing (14) slidable on the shaft and an abutment collar (17) fixed to the shaft near the bellows section.
Patent GB-1344024-A (GB)
Title: Flotation of arsenic minerals from hot borax ores
IPC: B03D1/06
Filed: 1972-07-05
Abstract: 1344024 Froth flotation UNITED STATES BORAX & CHEMICAL CORP 5 July 1972 [21 Oct 1971] 31471/72 Heading B2H Arsenic minerals are removed from boratecontaining ores by forming an aqueous slurry of the ore at a temperature of at least 75‹C, subjecting the hot slurry to froth flotation and separating the tailings from the floated materials which contain a concentrate of the arsenic minerals. The ore may be ulexite (hydrated borate of sodium and calcium), colemanite (hydrated calcium borate) or tincal. The arsenic mineral may be realgar, As 4 S 4  or As 2 S 2 . Prior to the flotation step, the slurry may be conditioned with a flotation reagent, e.g. short hydrocarbon chain (C 2  to C 5 ) xanthate, kerosene, diesel oil or bunker oil. The floatation is carried out at a pH of at least 9.0. Flotation cells, in which aeration of the slurry takes place to produce the froth, may be arranged in series as rougher and cleaning cells. Examples are given.
Patent GB-174891-A (GB)
Title: Process for producing finely granulated compounds
IPC: B01J8/18
Filed: 1920-07-26
Abstract: Unstable or hygroscopic compounds or mixtures, such as oxidizing and reducing agents, particularly sodium hyposulphite and sodium perborate and other per-salts, are rendered stable by spraying on to the powdered material while in motion a liquid protective material such as water-glass solution preferably while cooling and drying. The product is in granular form.  Preferably, the process is effected by spraying the liquid into the upper part of a tower, introducing the pulverized chemical, for instance by suction or compressed air into the spray and directing an air current so as to meet the moistened particles in their descent to effect the drying.  Reference has been directed by the Comptroller to Specifications 5490/08, 26384/08 and 18330/11, [both in Class 86, Mixing &c.].