baber/WOPTO huggingface dataset:
Patent GB-721608-A (GB)
Title: Improvements in diffusion processes and an apparatus for performing said processes
IPC: B01D47/02
Filed: 1952-04-02
Abstract: 721,608. Treating gases with liquids. LINDER, A. V. B. April 2, 1952, No. 8455/52. Class 55 (2). In a gas-liquid contacting process, the gas is passed across the surface of the liquid flowing across a substantially horizontal plate, the liquid stream following an extended path around baffles on the plate which reverses its direction abruptly several times, additional baffles being provided at each reversal point to divide the stream into two or more parallel subsidiary streams. In one form, the apparatus consists of a column 1, for example as described in Specification 663,926, [Group III], containing a number of superimposed plates 2, liquid entering at the top and flowing across each plate to an opening 3, through which it falls to the plate below, whilst gas flows up through the column, crossing each plate in surface contact with the liquid thereon. A metal spiral 15 may be suspended in each gas space to produce turbulence in the gas flow. Each plate 2 is provided with upstanding baffles 9, 10, around which the liquid flows as shown at A, semicircular guide plates 11 being provided at the end of each baffle 9, 10 to divide the liquid stream and prevent back currents. With modified baffle arrangements, Figs. 5-8 (not shown), the liquid flows in zig-zag or concentric paths across or around the plates.
Patent GB-330882-A (GB)
Title: Improvements in or relating to milling and like machines for copying and reproducing
IPC: B23Q35/32
Filed: 1929-03-15
Abstract: 330,882. Coates, H. March 15, 1929. Copying-mechanism.-In a, copying machine of the type in which the movements of the cutter are controlled by a tracer which moves over a pattern, the tracer is gyrostatically controlled by means of a. rotating mass associated with the tracercarrier. The tracer 11, preferably of a lenticular shape identical with the cutter profile is mounted in a sleeve 12 carried on the stator 13 of an electric motor which is mounted in a gimbal ring 14 supported on arms 16, carried on the casing 10, the trunnions 17 hawing slight play in the casing. The sleeve 12 is centred by means of a number of adjustable radially-arranged springs 18. The springs 18 and the gyrostatic action of the motor armature resist any lateral movement of the tracer 11. The motor shaft 23 drives through a universal coupling 24 a fly-wheel member 22 whose periphery is engaged by rollers 28 mounted on the arms 26 of a number of bell-crank levers which are pivoted at 25 to arms 15 secured to the motor casing. The long arms 27 of the bell cranks carry contacts 29 coacting with oppositely-disposed contacts 30, 31 mounted in the casing. While the tracer is not engaging the pattern the motor casing is pushed forward by springs acting on the arms 16 and the forward feed contacts 29, 31 are engaged. If however the motor is moved to the right t in Fig. 1 or is tilted from its normal position one or more of the bell cranks will be shifted to engage the contacts 29, 30 which produce a withdrawal movement of the cutter and tracer. The contacts 31 are connected with diametrallvopposite pairs in series, as shown in Fig. 3, so that forward feed only occurs when opposite pairs of contacts 31 are both engaged. The withdrawal contacts 30 are, however, connected in parallel to mains 33, 34 so that when any contact 30 is engaged through the tracer encountering the pattern the tracer and cutter are at once withdrawn. The controlling springs 18 and 33<1> are adjusted according to the degree of sensitivity required.
Patent GB-789719-A (GB)
Title: Coin operated vending machine
IPC: G07F5/02
Filed: 1956-03-19
Abstract: 789,719. Coin-freed vending apparatus, TAYLOR BISCUIT CO. March 19, 1956 [March 23, 1955], No. 8510/56. Class 27 Coin freeing mechanism for an article vending machine comprises an operating lever 36 and ejector lever 34, both pivoted at 38, and an inserted coin falls to a position 116 where it engages surfaces 112a and 114 so that the ejector lever is coupled tc the operating lever and can be moved clockwise when the handle 118 is lifted, thus removing a support surface 42 from beneath the stack of articles 12 and allowing the lowermost article to drop to a shelf 16. When the handle 118 is released, a spring 74 returns the operating and ejector levers to initial position and a nose 44 of the ejector lever pushes the article 12 off the shelf 16 into a delivery shoot. In the initial position of the levers, a blade spring 122 engages a slot 130 to prevent the operating lever from moving the ejector lever frictionally or under the weight of the articles in the absence of a coin but,. when the levers reach the limit of their clockwise movement, the spring 122 snaps over the surface 112a and pushes the coin through a hole 120 into a coin box. In the modification shown in Fig. 10, the nose of the ejector lever has a curved plate 210 for supporting bags 214 of peanuts and when the operating lever moves the ejector lever clockwise and removes this support, a, projection 159<SP>1</SP> on the operating lever tilts a spring-loaded lever 216 into supporting position below the bag 232 next above the one delivered. If the operating lever is moved in the absence of a coin, the lever 216 still tends to tilt but, as its pivot 218 is mounted in a slot 220, it can yield on encountering resistance and does not tear the bags. Coin testing and clearing. The inserted coin is guided past an opening 132 in the operating lever 36 through which undersize coins are rejected by a spring 136, past an aperture 142 through which under-weight coins are rejected by a spring 140 and past a magnet 144 which holds ferro-magnetic washers or slugs until a spring 152 snaps through an opening 150 in the operating lever as the lever is moved clockwise and ejects the washer or slug through an aperture 158. Preventing operation of empty machine. After passing the magnet 144, an inserted coin in position 108 strikes an article 12 and falls between the surfaces 112a and 114 but, if the stack of articles is exhausted, the coin falls through position 164 to the article removal shelf 16.
Patent GB-271209-A (GB)
Title: Improvements in the manufacture of electrodes, welding rods and the like
IPC: B23K35/04
Filed: 1926-03-29
Abstract: 271,209. Turner, B., and Ferro-Arc Welding Co., Ltd. March 29, 1926. Uniting by fusion. - A coated electrode, or welding-rod for welding cast iron or steel consists of a core of a nickel-copper alloy with a coating of flux or slag forming material. A coated electrode, or welding-rod for welding also other metals or alloys such as that known under the Registered Trade Mark as Monel metal has a core consisting of an alloy of 60 to 80 parts of nickel and 40 to 20 parts of copper coated first with a deoxidizer and then with a flux or coated with a mixture of deoxidizer and flux. The deoxidizer may be incorporated with the core during the formation thereof prior to drawing it down into wire form. Welding may be performed by the metallic or carbon arc or by the oxyacetylene process. The core metal may consist of Monel metal having 70 per cent of nickel and 30 per cent of copper. The deoxidizer may consists of commercial silicon to which may be added aluminium, vanadium or titanium either separately or together, either as pure metals or as alloys. The flux may consist of 80 parts of fluor spar or 68 parts of fluor spar and 15 parts of rutile, to which may be added 15 parts of finely ground tin-oxide and/or 5 parts of barium carbonate and/or 5 parts of sodium carbonate, with 20 parts of sodium silicate to serve as a binder. A further flux coating may consist of blue asbestos yarn or powder. An open spiral of asbestos yarn may be wound on a core coated with deoxidizer, the spaces between the turns being filled with the fluor spar mixture by extrusion &c. The deoxidizer may be powdered and mixed with a solution of shellac in methylated spirit and applied with a brush or by dipping.
Patent GB-619868-A (GB)
Title: Improvements in or relating to aerial arrays and feeder arrangements for use therewith
IPC: H01Q9/16
Filed: 1946-03-19
Abstract: 619,868. Aerials. RUST, N. M., and DAWSON, L. H. March 19, 1946, No. 8543. [Class 40 (vii)] In a broadside aerial array comprising a large number of aerial elements coupled into different points of a feeder system, such as a transmission line or wave-guide, the elements are spaced substantially a quarter wavelength apart, successive pairs of elements being coupled to the feeder in opposite phases. Owing to the quarter wavelength spacing, the discontinuities in the feeder due to the aerial elements produce reflection effects tending to cancel one another and thus standing waves are not built up. Fig. 1 shows a wave-guide 1, terminated at 2, and mounted along the focal line of a reflector 6. The dipoles 4, of which only four are shown, are mounted a quarter wave-length apart and are staggered in order to reduce the coupling between adjacent dipoles and also to improve the vertical polar diagram of the array. A screen 5 mounted in front of the array concentrates the radiation from the array into the reflector 6 so as to improve the directivity in the vertical plane. Fig. 2 illustrates the construction of a dipole, which comprises an adjustable probe element 4a which couples the dipole to the wave-guide. The effects of coupling between adjacent aerial elements may be reduced by increasing the phase velocity of the wave in the feeder and thus the spacing between the elements, or by placing metal screens between them, in addition to the staggering previously described. The residual effects of coupling may be cancelled out by adjusting the depths of penetration of the dipole probes to control the relative loading effects of the dipoles upon the feeder. Scanning in a radar system may be provided by varying the frequency of transmission, which will consequently vary the direction of radiated beam.
Patent GB-375311-A (GB)
Title: Improved apparatus for polishing, brushing and scouring surfaces
IPC: A47L11/04
Filed: 1931-03-20
Abstract: 375,311. Cleaning or polishing floors &c. HORTON, S., 53, Station Road, Clacton-on-Sea. March 20, 1931, No. 8562. [Classes 60 and 138 (i).] A device for cleaning, polishing, or scouring floors, tables, or other surfaces comprises a supporting member a, Figs. 1 and 3, carrying a wheel d in contact with the surface under treatment, the to-and-fro movement of the wheel over the surface causing the rotation of a rectangular thrust frame f provided with a rectangular cleaning appliance g. The shaft d<2> of the wheel d carries a fixed friction wheel d3 and a loosely-mounted friction wheel d<4>, both of which engage the surface f4 of the frame f. The cleaning appliance g fits over the flange f<2> of the frame and is pressed yieldingly against the surface e by springs f<3>. In a modification, shown in Fig. 6 as a plan from below, the friction wheels are replaced by toothed wheels gearing with a toothed ring m carried by the frame f. The rear portion of the member a including the wheels a<4> may be dispensed with.
Patent GB-306732-A (GB)
Title: Improvements in the manufacture and production of complex metal compounds of o-hydroxyazo dyestuffs
IPC: C09B45/14
Filed: 1928-03-21
Abstract: 306,732. Johnson, J. Y., (1, G. Farbenindustrie Akt.-Ges.). March 21, 1928. Samples furnished. Azo dyes, soluble metal compounds of.-Metal compounds of o-oxyazo dyestuffs are obtained by treating with compounds yielding metal the azo dyes produced by coupling diazotized nitro- and/or chlor-o-aminophenols or their derivatives with m-phenylenediamme or its nitro, halogen, or alkyl derivatives. The following examples are specified : (1) The dyestuff 4-nitro-2-aminophenol- 6-sulphonic acid # 4-chlor-1 : 3-phenylenediamine is heated under pressure with an aqueous solution containing chromium oxide and formic acid; the product gives brown dyeings, fast to light, on leather, the corresponding copper compound gives similar dyeings, and the corresponding chromium compound obtained with 4-nitro- 1 : 3-phenylenediamine gives more reddish brown dyeings. (2) The dyestuff 4-nitro-2-aminophenol- 6-sulphonio acid # m-toluylenediamine is heated with an aqueous solution containing copper formate and formic acid; the product gives fast yellow-brown dyeings on leather, and the corresponding chromium compound gives redder dyeings. reference has been directed by the Comptroller to Specifications 26460/12, 1611/15, 15456(15 and 16803/15.
Patent GB-107232-A (GB)
Title: Improvements in Street Gulleys and the like.
Inventor: NORTON RALPH ARTHUR
IPC: E03F5/06
Filed: 1916-06-19
Abstract: 107,232. Norton, R. A. June 19, 1916. Road surface boxes.-Street gullies with removably-pivoted covers or grids c, as described in Specifications 21603/12 and 22573/13, [both in Class 65 (ii), Hinges &c.], and 26204/13, are provided with an inner chamber e leading to the trap and having a cleaning opening closed by a cover g which cannot be raised until the grid has been removed. The invention is shown applied to a street gully filled with a grid hinged to a lug d removably pivoted to the body of the gully, as described in Specification 26204/13.
Patent GB-689966-A (GB)
Title: Secondary-electron emitters and method of manufacture
IPC: H01J9/12
Filed: 1949-03-30
Abstract: 689,966. Electrode materials and processing. SYLVAN [A ELECTRIC PRODUCTS. Inc. March 30, 1949 [April 5, 1948], No. 8683/49. Class 39(i). A secondary-electron-emitting electrode comprises a metal support carrying a barrier layer of rhodium, platinum, silver, gold or copper on which is placed a compound of an electron-emitting material, the electrode being mounted in an assembly which is sealed into an evacuated tube, the electrode being subsequently heated to produce the secondaryemitting coating. The compound may consist of one or more of the carbonates, fluorides or chlorides of the alkali or alkaline earth metal such as the carbonate chloride or fluoride of barium or the carbonate or fluoride of caesium, or of a mixture, e.g. equal parts of caesium and potassium carbonate, or of silver oxide and caesium carbonate; the coating may be produced by cataphoresis or spraying. Nitrocellulose should not be used with caesium carbonate which should be ball-milled in amyl acetate, the sprayed coating being protected from the atmosphere by a coating of lacquer. Alternatively, the material may consist of specified proportions of silver oxide, amyl acetate, ethyl cellulose and caesium carbonate. The cup-shaped dynode 11 is coated with rhodium 12 and emissive compound 14. The tube is baked for 30 minutes at 400C. degassed and heated to 800C for one minute; the dynode is then heated by the filament 10 to 800C for 2 minutes, the getter 22 flashed and the tube sealed and aged by heating the grid by electron bombardment for 3 minutes.
Patent GB-1012324-A (GB)
Title: Siloxane ester lubricants
IPC: C08G63/695
Filed: 1963-03-05
Abstract: A liquid neutral complex ester is made by reacting together, under esterification conditions in one or more stages, (a) a saturated monocarboxylic acid of 1 to 18 C atoms per molecule, (b) a saturated aliphatic polyhydric alcohol of 5 to 15 C atoms per molecule, and (c) an organosiloxane dicarboxylic acid of the formula <FORM:1012324/C3/1> wherein R1 is an alkylene radical of 1 to 10 C atoms.  The reaction can be effected in known manner, e.g. using a water entrainer, such as toluene, and with or without a catalyst, e.g. sulphuric acid, p-toluene sulphonic acid, sodium bisulphate, a tetra-alkyl titanate, titaniumtetrachloride or a molecular sieve catalyst. Reactants specified are (a) caprylic, n-heptanoic, pelargonic and capric acids, and (b) 1 : 1 : 1-trimethylolpropane, 1 : 1 : 1-trimethylolethane, pentaerythritol, neopentyl glycol and 2-methyl-2 - n - propyl - 1 : 3 - propane diol. viscosity index of the complex esters may be increased by equilibrating them with a cyclic dimethylpolysiloxane in the presence of a catalyst, e.g. H2SO4.  If desired, the complex exters may be blended with simple neutral esters prepared by reacting (a) and (b), the proportion of the complex ester in the blend preferably being at least 50% by weight of the blend.  In the example, ester P1 was made from caprylic acid, 1 : 1 : 1-trimethylolpropane and a siloxane acid of the above formula in which R1 is trimethylene, using tetrabutyl titanate as catalyst; ester P2 was prepared from the same reactants but without the catalyst; and ester A was made by equilibrating ester P2 with octamethylcyclotetrasiloxane.  Uses.-as thermally stable liquids, lubricants and as hydraulic fluids.  Siloxane acids of the above formula can be made by the malonic ester synthesis reaction using a di-(chloroalkyl) disiloxane, followed by hydrolysis to form the tetracarboxylic acid and heating the latter to form the dicarboxylic acid of the above formula.
Patent GB-807490-A (GB)
Title: Apparatus for making paper or paper board or like fibrous product
IPC: D21F9/00
Filed: 1957-03-15
Abstract: 807,490. Fourdrinier or like paper-making machines. ST. ANNE'S BOARD MILL CO. Ltd. March 15, 1957 [March 30, 1956], No. 8709/57. Class 96. In the manufacture of paper, or paper-board, &c., pulp supplied between upper and lower walls 30a and 30b to a converging space G is squeezed between travelling upper and lower wire-cloths 21 and 16 passing about cellular rollers 22 and 17 which may be offset as illustrated or in vertical alignment and which may be suction rollers, and either of which may be horizontally and vertically adjustable. Each roller 17 or 22 may have a suction zone A or A1, for water-extracting, and a suction zone B or B1 for holding extracted water in cells 32 so that when it is thrown off by centrifugal force it is caught in an enclosure 41 or 42. A suction mouth 21 removes water pressed through the upper wire-cloth 21. In a modification, pulp is delivered to the upper fiat run of the lower wirecloth which carries it under the suction roller 22 and wire-cloth 21. A succession of plies may be formed, e.g. using a succession of upper wirecloths &c or alternatively a first ply may be formed in any known manner and one or more others formed as described Each suction roller 17 or 22 may comprise a shell 34 with longitudinal rows of perforations between each row of which is a radially extending partition 33 to provide deep cells 32. Each partition is notched to receive a helically wound strip (not shown in Fig. 2) the outer surface of which is flush with the outer edges of the partitions 33 to support a coarse wire-mesh cover embracing the roll and providing support for the forming-wire 16 or 21. The two wire-cloths 16, 21 may pass between a succession of wet presses each of which may be followed by a suction mouth The upper and/or lower roller 43, 45 of each press may be a plain or a suction roller. Specifications 748,597, 775,988 and 780,587 are referred to.
Patent GB-1120873-A (GB)
Title: Extraction of low molecular weight impurities from polyamides
Inventor: GOETZKE JUERGEN
IPC: C08G69/46
Filed: 1967-02-23
Abstract: <PICT:1120873/C3/1> A process for the extraction of lower molecular weight impurities from granulated polyamide comprises passing a solvent upwardly and the granulated polyamide downwardly through a tube (Fig. 3) provided with a plurality of means (2) which restrict the cross-sectional area of the tube, the rate of upward flow of the solvent through the smallest cross-sectional area at each restriction being at least sufficient to prevent downward counterflow of solvent through that restriction. The extraction of poly-e -caprolactam with water at 110 DEG  C. is described.
Patent GB-218005-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H01R39/38
Filed: 1923-03-28
Abstract: 218,005. British Thomson-Houston Co., Ltd., and Whitaker, F. P. March 28, 1923. Addition to 140,134. Brush-holders; commutation, improving by means of electromagnets outside commutators.- The hollow protecting shell forming a brushholder or bracket as described in the parent Specification is utilized as a single-turn blow-out coil for suppressing flash-overs or short-circuit currents without the use of a special blow-out coil. Fig. 1 shows a side elevation of a hollow casing of which a section on the line II-II is shown in Fig. 2. The brushes and brush-boxes are enclosed by a shell 9 formed integrally with or carried by a bracket 11 and closed by a cover or hinged door 16 (not shown in Fig. 1). The electrical continuity of the casing is interrupted, for example by parting it at 9<x>, so that no complete ring of metal extends around the brush-gear and the split casing acts as a one-turn coil, one end of which is connected to the brushes and the other to the bus-ring. An insulated steady-bolt 9<a> may be used at the gap in the casing and the cover 16 is divided or insulated from the casing so that there is no metallic closure of the blowout turn.
Patent GB-488385-A (GB)
Title: Process for the production of yarns from flax fibres
IPC: D02G3/00
Filed: 1937-03-25
Abstract: 488,385. Spinning vegetable fibres. HOFMANN, C. F. March 25, 1937, No. 8896. Convention date, June 15, 1936. [Class 120 (ii)] Flax yarns are spun by passing the roving through hot water in ring frames provided with self-lubricated rings, the oil film formed on the ring preventing the deposition and hardening of the sticky substances. The Specification as open to inspection under Sect. 91 comprises also the application to the spinning of all vegetable fibres containing adhesive substances. This subjectmatter does not appear in the Specification as accepted.