baber/WOPTO huggingface dataset:
Patent GB-754203-A (GB)
Title: Balance with device for mechanically placing in position and lifting-off weights
IPC: G01G1/26
Filed: 1954-12-31
Abstract: 754,203. Weighing apparatus. METTLER, E., [trading as METTLER, FABRIK FUR ANALYSENWAAGEN, E.], Dec. 31, 1954 [Oct. 27, 1954], No. 37812/54. Class 143 A decade set of four horizontal, annular concentric weights can be removed from or placed on a balance in a predetermined order by manually-operated mechanism. The balance beam 9 is pivoted at 8, the right-hand arm carrying a fixed counterweight and the left-hand arm supporting a rod 12 carrying the goods pan (not shown) and having three spokes 15 (only one shown) supporting the weights 17,18,19,20. A disc 27 is rotated by a knob 33 through gearing 32, 31 and carries four concentric annular cams 34, each corresponding to the annular weight above it and actuating three sets of four "lifting-off" members 21 by co-action with their rollers 26. The members 21 are placed between the spokes 15 and are spring or pivot-mounted to the casi-ng. The contour of each cam is such that a weight is lifted simultaneously at three points, and during one revolution of the disc every combination of the four weights are lifted to give a series of ten different loads with an interval corresponding to the unit of the particular decade. The upper part of the Figure shows a second set of weights of a different decade.
Patent GB-425011-A (GB)
Title: Improvements in washing machines
IPC: D06F37/40
Filed: 1934-09-28
Abstract: 425,011. Centrifugal machines. BECQUET, D., 231, ChaussÚe de Vleurgat, Brussels. Sept. 28, 1934, No. 27831. [Class 23] [See also Group VIII] In a washing-machine having means for axially reciprocating a plunger plate 5 within a perforated receptacle 4 and for rotating the receptacle in a casing 1, either separately or simultaneously at will, the gearing and controls therefor are carried on a cross-bar 21 pivoted to the casing at 22 so that the whole of the mechanism can be swung up to give unobstructed access to the casing and receptacle. The hollow shaft 19 for rotating the receptacle is secured to the cover 20 thereof and is driven through bevel gear 18, 17, clutch 25 and shaft 12, the latter being driven either from an electric motor 7 through bevel gear 10, 11 or from a hand crank 6 and spur gear 13, 16. The clutch 25 may be thrown out and a connecting rod 14 may be coupled to the plunger shaft 15 by means of a clamping screw 24 and sleeve 26 whereby the plunger may be reciprocated either by the hand crank or the motor. The cross-bar 21 may be secured in the operative position by a bolt 23.
Patent GB-318974-A (GB)
Title: Improvements relating to rectifiers
IPC: H01L25/07
Filed: 1929-09-13
Abstract: 318,974. Associated Electrical Industries, Ltd., (Assignees of Slepian, J.). Sept. 13, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Contacting-solid resistances.-A static contact rectifier comprises a metallic base provided over a portion of its surface with a layer of a compound of the same metal and a metallic terminal member making electrical connection with this layer and so arranged that a substantial margin of separation exists between the terminal member and any point on the peripheral junction between the layer and the metallic base. In the rectifier shown in Fig. 1, a copper cylinder 1 with rounded ends has its entire surface oxidized by heating in contact with oxygen to about 1000‹ C., this temperature being maintained for about 3 minutes. The unit is then cooled in the course of about 5 minutes to 700‹ C. and quenched in water &c. A layer 2 of copper oxide is thus formed. A hole is drilled at one end and reamered to a slightly conical form to engage a terminal plug 3. The hole is slightly countersunk in the margin of the oxide layer to provide a gap 4 between the terminal 3 and the edge of the oxide layer 2. Contact with the oxidized surface 2 may be effected by surrounding it with a sheath 5 of lead &c. Finely grained graphite may be rubbed over the portion of the oxide layer in contact with the sheath 5. A split sleeve 6 of copper &c. may be placed around the layer 5 and secured by bolts 7 and lugs 8. A margin of separation is left between the edge of the opening 4 and the edge of the lead sheath 5. 'The rectifier shown in Fig. 3 comprises a series of copper discs 11 coated with oxide in the above-described manner, the edges and one flat surface of each disc being freed from oxide by grinding &c., leaving a layer 12 covering one flat surface. Contact with this surface is made by means of a disc 13 of lead &c. of such a size as to leave a margin at all points between it and the outer and inner edges of the layer 12. The layer 12 may be coated with graphite on the portions in contact with the layer 13. The elements are assembled on a bolt 21 having an insulating covering 22. The invention is applicable to elements employing compounds of other metals, such as iron oxide.
Patent GB-318976-A (GB)
Title: Process for simultaneously preparing aluminium oxide and pure carbonic acid
IPC: C01B32/50
Filed: 1929-09-13
Abstract: 318,976. Asseev, C. d'. Sept. 13, 1928, [Convention date]. Carbon dioxide.-Crude aluminium sulphate or other ferruginous aluminium ore is treated with a solution of magnesium bicarbonate. Carbon dioxide is evolved, and a precipitate of basic iron and aluminium carbonates is obtained. The precipitate is washed and heated to 90-100 C. when pure carbon dioxide is evolved. The hydrates of aluminium and iron which remain are treated with hot caustic soda solution which dissolves the alumina. Ferric hydroxide is separated. The solution of sodium aluminate is treated at 70-90 C. with the carbon dioxide evolved in the treatment of the crude material. The precipitated alumina is washed, dried, and calcined. The solution of sodium carbonate is treated with lime to regenerate caustic soda.
Patent GB-979441-A (GB)
Title: Valve for an oxygen cylinder or the like
IPC: F16K1/30
Filed: 1961-08-01
Abstract: 979,441. Valves. P. H. WIEGEL. Aug. 1, 1961, No. 27952/61. Heading F2V. A valve for controlling pressurized oxygen comprises a valve closure member 14 mounted for axial movement within a housing 1 and an operating knob 8 associated with the closure member to control the open or closed position thereof, the closure member being maintained closed by a spring 12, the pressure of which can be relieved by an axially-movable member 7 connected to the knob. The knob is rotatably mounted on a stationary member 4 and coupled to one end of a shaft 5, the other end of the latter having a splined-connection with the movable member 7, which is screwed into the member 4. The closure member 14 is urged, via a washer 11, by the spring into the closed position shown in Fig. 1. Upon rotation of the knob the member is moved axially until after taking up a small clearance, shoulders 9, 10 on the member abut a flange 13 on the valve member and washer 11 thereby simultaneously relieving the spring pressure and opening the valve. In order to provide a more gradual opening of the valve an extension 16, Fig. 2, may be formed on the closure member. Again, in order to further delay the opening of the valve and prevent shock, the end of the member 7 may be lengthened and arranged to enter a cylindrical recess in the housing. In the modification shown in Fig. 4, a second spring 19 is arranged to act on the closure member so that, when the shoulder 9 abuts the closure member and just opens the latter, the pressure is relieved via the small clearance between the extension 16 and its co-operating bore; a pressure balance is then obtained and the spring 19 completely opens the valve, the loading of the spring 12 having been removed by the abutment of the shoulder 10 and washer 11. In the further modification shown in Fig. 8, the extension 16 is dispensed with and the gradual pressure balance is effected by means of a small bore 20 in the closure member controlled by a needle valve 21, the latter being opened by the abutment of a shoulder 10 on the member 7 with a disc 11a on the needle valve.
Patent GB-422870-A (GB)
Title: Improvements in vapour electric arc converters
IPC: H01J13/20
Filed: 1933-10-11
Abstract: 422,870. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GALLIZIA, E., c/o General Electric Co., Witton, Birmingham. Oct. 11, 1933, No. 28088. [Class 39 (i)] In a metal-clad vapour arc converter, the outer wall of a double-walled anode shield is formed of magnetic material whilst the inner wall, which re duces the thermal radiatior to the outer wall, and thus maintains the magnetic pro perties thereof, is supportec in a substantially heat in sulating manner and forms part of, or surrounds, a control electrode. An anode 3 is secured through bolts and an insulator 5 to the top plate 1. The anode shield comprises an outer iron cylinder 6 which is tapered at its free end 8, and is bolted through a flange 7 to the plate 1. A relatively thin-walled cylinder 9 is supported from the cylinder 6 by arms 10, 11 of small cross-section, both the cylinders and the arms being formed of iron, molybdenum or quartz. The cylinder 9 carries, and is electrically connected to, or insulated from, a control grid 12 which may comprise inclined parallel metal strips. A deionizing grid 13, consisting of concentric rings, is supported by the cylinder 6 through members 14 more than one deionizing or control grid may be provided, and the relative position of the grids may be reversed.
Patent GB-1100312-A (GB)
Title: Engine starting apparatus
Inventor: WEST JOHN GODFREY WILSON
IPC: H02K7/12
Filed: 1964-07-08
Abstract: 1,100,312. Starting apparatus. JOSEPH LUCAS (INDUSTRIES) Ltd. June 17, 1965 [July 8, 1964], No.28098/64. Heading F1K. In engine starting apparatus the motor includes a yoke 18 and a plurality of polepieces each having one end rounded, adjacent polepieces having their rounded ends at opposite axial ends of the yoke. The field system of the motor consists of a single field coil 17 extending around the inside of the yoke and shaped to define portions which extend substantially axially relative to the yoke and are joined by curved end portions which extend around the rounded ends of the polepieces. At least one of the polepieces has a part 19a, 21a fixed relative to the yoke and including the rounded end and a movable part 19b, 21b resiliently urged away from the fixed part in a direction parallel to the motor shaft. The apparatus further includes means 28, 29 connecting the movable part to the pinion, the arrangement being such that when the field system of the motor is energized the movable part will be attracted by the fixed part and the pinion will be moved from its inoperative position to its operative position. The fixed and movable parts of the polepieces may be formed with complementary inter-engaging faces of part conical form.
Patent GB-838340-A (GB)
Title: New monoazo dyestuffs derived from cyanuric chloride
Inventor: STEPHEN WILLIAM ELLIOT
IPC: C09B62/085
Filed: 1956-09-14
Abstract: The invention comprises dyestuffs of formula <FORM:0838340/IV(c)/1> where A is an aryl group, R is H or alkyl, Y is H or Hlg, X is H, COOH or SO3H and A and X are chosen so that the dyestuff contains at least 2 SO3H groups, or at least 1 COOH and 1 SO3H group.  Indicated for A are phenyl, a -and b -naphthyl and diphenyl groups which may be substituted by, e.g., methyl, t-butyl, ethoxy, bromo, chloro, acetamido, sulpho or carboxy groups and especially by SO3H o to the azo group.  Methyl is indicated as an alkyl group for R.  They are made by reacting at least one mol. proportion of cyanuric chloride with a compound of formula <FORM:0838340/IV(c)/2> The starting dyestuffs may be made by diazotizing appropriate arylamines and coupling in an alkaline medium with the necessary aminonaphthol sulphonic acid which, if the arylamine does not contain an acylamino substituent, may be used in the form of an N-acyl derivative. Specified arylamines are aniline, o-, m- and p-toluidines and anisidines, xylidines, mono- and polychloroanilines, aniline 2-, 3- and 4-sulphonic acids, 3-methyl- and 2,4-dimethyl-aniline-6-, 4 chloro-5-methyl-, 5-chloro-4-methyl- and 4-methyl- and -methoxy-aniline-2-sulphonic acids, aniline-2,5-disulphonic acids, 2,5-dichloraniline-and 2-aminotoluene-4-sulphonic acids, aniline-2-, 3- and 4-carboxylic acids, 4-amino-diphenyl-3- and 41-sulphonic acids, 1- and 2-naphthylamine, 1-naphthylamine-4-, 5-, 6- and 7-mono-and 3,6- and 3,7-disulphonic acids, 2-naphthylamine-1,5-, 4,8-, 6,8-, 5,7- and 3,6-di- and 1,5,7- and 3,6,8-trisulphonic acids. Specified coupling components are 2-amino-, -methylamino-, and -methylamino-1-chloro-, 8-naphthol-6-sulphonic acids, 2-amino-3-carboxy-8-naphthol-6-sulphonic acids and 2-amino-8-naphthol-3,6-disulphonic acid and their corresponding 2-acetyl- and -formamido-compounds.  The products may also be made by coupling the diazotized arylamine with the appropriate triazine component.  The latter components may be made by condensing cyanuric chloride with the coupling components indicated above. Aqueous media are preferred for the reactions and isolation of the dyestuffs is advantageously effected at pH 6-8, especially at about 6.5 (see Specification 838,337).  The dyestuffs, as alkali metal salts, dye silk, wool, regenerated protein and cellulose textile materials, the latter in red shades, in the presence of an acid-binding agent (see Specification 797,946).  They also dye silk, wool, regenerated protein, polyamide and modified polyacrylonitrile textile materials by conventional dyeing methods.  In examples which illustrate the preparation of the dyestuffs and their use in dyeing processes the components used are chosen from those indicated above, additional diazo components being 4-chloroaniline-2-sulphonic acid, 3-amino-toluene-4-sulphonic acid, 4-chloro-2-aminoanisole-6-sulphonic acid, 6-chloro-2-amino-anisole-4-sulphonic acid, 2 - amino - 21 - methyldiphenylether - 4 - sulphonic acid and dehydrothiotoluidine sulphonic acid.
Patent GB-1321806-A (GB)
Title: Polyphase current transformer for feeding polyphase thermal  overcurrent trip elements
IPC: H01F30/12
Filed: 1971-06-16
Abstract: 1321806 Current transformers SPRECHER & SCHUH AG 16 June 1971 [11 Sept 1970] 28261/71 Heading HIT A three phase current transformer has a threewindowed magnetic core formed of limbs 4, 5, 6, 7 butted on to projecting portions of yokes 9 the phase primary conductors 18 each passing through a window as do the series connected pairs of phase secondary windings 26. The core parts are held together by tapped plates 12, and tie bolts 10 and the cover parts are secured together and to the transformer by studs 13, 25. The primary bars are surrounded by insulating hose 20. The symmetrical arrangement of the windings is said to avoid saturation of the core.
Patent GB-956439-A (GB)
Title: Improvements in or relating to vacuum gauges
Inventor: SADLER PETER
IPC: G01L19/12
Filed: 1959-08-19
Abstract: 956,439. Vacuum gauges. GENEVAC Ltd. Aug. 11, 1960 [Aug. 19, 1959], No. 28279/59. Heading G1L. In a McLeod type of vacuum gauge the mercury or other liquid reservoir 13 is connected to the source whose pressure is to be measured by a glass tube 27 and a pipe 34. The tube 27 and the capillary tubes 26, 30 are separate from and secured to the housing 11 by gland nuts 27a, 26a and 30, the tube 30 opening into an antecedent chamber 28. The bore of the reservoir 13 is constituted by a diaphragm 12 which is raised by a lever 20 against a spring 15 when a measurement is taken for the liquid to rise and cut off a volume of gas to be measured and then rise in tube 27 to a datum level. The pressure is read off on seales alongside the tubes 26, 30 one being used for low vacuum and the other for high vacuum readings. The housing 11 can be constructed of metal with great accuracy as regards the volumes of passage 24 and chamber 28. Instead of mercury a low pressure silicone oil may be used.
Patent GB-191851-A (GB)
Title: Improvements in or relating to roller bearings
IPC: F16C33/372
Filed: 1921-10-25
Abstract: 191,851. Collier, J. V., and Northampton Machinery Co., Ltd. Oct. 25, 1921. Roller bearings.-The rollers 2 of a bearing are spaced apart by separate blocks 3, having one or more projections 3b on the outer faces which engage a groove or grooves 1<c> in the bearing housing for preventing endwise movement and for distributing lubricant in the recesses 1<c> to the rollers. Reference has been directed by the Comptroller to Specification 20648/12.
Patent GB-1353064-A (GB)
Title: Converting metal images to formazan dye images
IPC: G03C5/56
Filed: 1971-06-17
Abstract: 1353064 Converting metal images to formazan dye images EASTMAN KODAK CO 17 June 1971 [22 June 1970] 28399/71 Headings G2C and G2E  At least part of an imagewise distribution of a metal having a standard oxidation potential more positive than - 0'98 volts contained in a hydrophilic colloid layer is converted to an imagewise distribution of a formazan dye by treating the metal image with an aqueous solution containing a water-soluble diffusible tetrazolium salt and a metal ion complexing agent or, without such an agent if the tetrazolium salt itself contains a metal ion complexing group, wherein the hydrophilic colloid layer contains dispersed therein a colourless high boiling (preferably above 175C) crystalloidal organic oil. The organic oil may contain in its molecule at least one ester, amide, imide, ketone, OH or ether group or halogen atom and may be tricresyl phosphate, di-n-butyl phthalate, diethyl lauramide or 2, 4-di-t-amylphenol. The organic oil may be dispersed as particles having diameters up to 2Á. The colloid may be gelatine. The tetrazolium salts and the metal ion complexing agents (when used) may be those described in Specifications 1333613 1333302. The metal image may comprise palladium or any metal more easily oxidized e.g. silver, nickel, copper, iron, palladium, zinc, lead or tin. Nickel images may be produced by physically developing an exposed photo-sensitive material containing a layer of palladium nuclei on a support. The spectral characteristics of certain formazon dyes or metal complexes of these dyes have high absorption in the long wavelength region of the visible and near infrared spectrum so that they are useful for making sound tracks monitored by infrared sensors. Silver sound tracks in conventional multi-colour materials monitored by infrared sensors may be transformed to formazon dyes or metal complexes of formazon dyes by the above method.
Patent GB-160126-A (GB)
Title: An improved code locking device for the steering pillar of a cycle
IPC: B62H5/06
Filed: 1920-02-06
Abstract: 160,126. Dakin, H. E., and Dakin, Ltd., H. E. Feb. 6, 1920. Guarding against unauthorized use.-In a code locking-device for the steering-pillar of a cycle, the outer end of the bolt e is engaged by a rotatable cap f in such a manner that rotation of the cap imparts a rectilinear movement to the bolt, the cap being prevented from other than rotatory motion by a spring ring f<1>. The bolt moves in a sleeve a screwed into the steering-head A and carries pins e<1>, which, when the code rings d are in the correct position, can pass through slots in the internal flanges on these rings. The innermost ring bears upon a washer c in contact with the head. The cap engages with the outer screwed end of the bolt.
Patent GB-905208-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F13/06
Filed: 1960-08-17
Abstract: 905,208. Tubular heat-exchange elements. JUNKERS & CO. G.m.b.H. Aug. 17, 1960 [Aug. 20, 1959], No. 28448/60. Class 64 (3). A sheet-metal strip 11 extends within a horizontally disposed heat-exchanger tube 10 in a plane generally parallel to the flow of a heating gas over the outside of the tube, the strip 11 having projections extending alternately on opposite sides thereof and being provided at least on its lower longitudinal edge with a flange 13 which rests firmly against the lower part of the inner surface of the tube 10. In the form shown, the strip is of z form, providing two of the flanges 13 and is formed with indentations for stiffening purposes. The projections are shallow flanges 15 formed around apertures 14 in the strip. Alternatively the projections may comprise tongues bent out of the plane of the strip and these may be inclined to direct liquid flowing through the tube towards the lower part of the tube section (Figs. 6, 7, not shown).
Patent GB-652969-A (GB)
Title: Improvements relating to amusement devices or toys for building pictures from piecesbearing fragmentary portions thereof
IPC: A63F9/10
Filed: 1948-11-03
Abstract: 652,969. Puzzles. WALKER, A. Nov. 3, 1948, No. 28489. [Class 132 (iii)] A picture-building puzzle comprises a plurality of relatively thin wood, &c. blocks a which are of circular or regular polygonal shape in plan and provided with a central aperture a<SP>1</SP> and are adapted to be non-rotatably assembled on a square, &c. vertical stem b extending from a base member c, the sides of the blocks having fragmentary portions of pictures &c. supplied thereto. The blocks may be retained in place by, for example, the engagement of a pin d with a hole at the upper end of the stem b. The puzzle may be enclosed within a mill-board &c. cover e having perforated flaps e<SP>1</SP> which are folded down around the stem b before application of the pin d to the latter.
Patent GB-1242072-A (GB)
Title: Electrophotographic copying apparatus
IPC: G03G15/16
Filed: 1968-06-14
Abstract: 1,242,072. Electrostatic printing. AGFAGEVAERT A.G. 14 June, 1968 [15 June, 1967], No. 28550/68. Heading B6C. [Also in Divisions B8 and G2-G3] Copy sheets 10 are stripped from a xerographic drum 1 by neutralizing the attractive electrostatic charge imparted to the sheets during transfer of a developed image from the drum. The charge is neutralized by applying an opposite charge by means of a carrier device 14. An air blower nozzle 16 may assist stripping of the sheets. A lamp 12 uniformly illuminates the drum prior to cleaning, recharging, exposure and development. Reference has been directed by the Comptroller to Specification 1,198,466.
Patent GB-971605-A (GB)
Title: Improvements in and relating to clutch controls
IPC: F16D48/02
Filed: 1962-07-25
Abstract: 971,605. Controlling clutches. AUTOMOBILOVE ZAVODY, NARODNI PODNIK. July 25, 1962 [July 28, 1961], No. 28675/62. The rate of engagement of a vehicle centrifugal clutch under the control of a vacuum servo device is regulated by an engine manifold depression responsive diaphragm valve having adjustable spring bias. A vacuum servo cylinder 1 having a diaphragm 2 operates a centrifugal clutch through an hydraulic servo cylinder 10 under the control of a solenoid valve. During clutch release, air is admitted through a non-return valve 8 to the atmospheric space 5. On clutch engagement the valve 8 closes and rapid exhaust of air from space 5 takes place through ports 6 in the diaphragm stem 7 until, at a position corresponding to initial engagement, the ports 6 are closed by entry into a sleeve 9 in the cylinder 1. Further release of air is then through metering orifices 20, 19; orifice 20 providing slow engagement when a valve 14, controlled by manifold depression on a diaphragm 12 acting against an adjustable spring 16, is shut and orifice 19 together with orifice 20 providing fast engagement when valve 14 is open by virtue of full throttle engine conditions. The rate of engagement according to engine throttle conditions may be preset by the screw 17 loading the spring 16.