baber/WOPTO huggingface dataset:
Patent GB-1037521-A (GB)
Title: Apparatus for dispensing and electrically charging substances in discrete particulate form
Inventor: FRASER REGINALD PERCY
IPC: B05B5/08
Filed: 1961-12-08
Abstract: 1,037,521. Spray-producers. DE MACHINES ELECTROSTATIQUES S.A. Nov. 30,1962 [Dec. 8, 1961], No. 44056/61. Heading B2F. Electrostatic spraying apparatus comprises a nozzle having an outlet at one end through which particles suspended in a gas stream are discharged, said outlet being connected to a source of electric potential and means being provided for directing or deflecting the gas stream into a helical path so that the particles migrate towards the wall of the nozzle in their movement towards the outlet. The nozzle comprises a circular vortex chamber 8 opening into a divergent conical portion 9 which terminates in a sharp lip 9a. An annular chamber 10 at the inlet end of the nozzle is connected to the vortex chamber by inlet ports 11 at a tangent to the wall of the vortex chamber 8, Fig. 2 (not shown). The nozzle is secured to a spray gun by a locking ring 19. A low velocity primary air stream carrying particles of nylon or polyvinyl chloride passes along the gun barrel 4 and into the chamber 8. Here it is deflected into a helical path by a high velocity secondary air stream entering the chamber 8 via a passage 12, the annular chamber 10 and inlet ports 11. A trigger 18 actuates a switch 21 in the high voltage supply line to the nozzle and a valve 22 controlling the flow of secondary air to the nozzle. The nozzle may have a conical baffle in the portion 9. Alternatively, the vortex chamber and portion 9 may have a uniform cylindrical cross-section. In another embodiment, the chamber 8 has an involute cross-section having a single port entering it along a generally spiral path. The barrel 4 may have a non-circular cross-section, e.g. in the shape of a cross, formed with a helical twist to impart the desired motion to the primary air stream as it enters the nozzle. The secondary air stream may be omitted and helical motion imparted to the primary air stream by fixed helical blades in the nozzle inlet.
Patent GB-1213506-A (GB)
Title: Method and apparatus for winding plural strands
Inventor: GENSON SAMUEL RICHARD
IPC: B65H57/16
Filed: 1968-09-17
Abstract: 1,213,506. Winding up a plurality of strands. JOHNS-MANVILLE CORP. 17 Sept., 1968, No. 44105/68. Headings DID and D1J. To wind a plurality of strands in spacedapart relation upon a common winding mandrel 52, a plurality of continuous filaments 12 are first gathered into a primary strand 14A, by means of a gathering body 16A, and this strand is then wound onto the mandrel 52. Thereafter the gathering body 16A is moved to a non-operative setting and a wheel 46, defining a plurality of grooves 48, is moved to a setting in which the grooves 48 divide the primary strand 14A into a plurality of secondary strands. A comb 64, adjacent the wheel 46, is moved to a setting in which its teeth project between said secondary strands and it is then moved down a slide rod 69 to a setting close to strand traversing means 54A adjacent the winding mandrel 52. The comb 64 thus serves to maintain the secondary strands in spaced-apart relation as they are wound up. In a modified oonstruction the comb 64 is absent and it is the grooved wheel 46 that is moved down the slide 68 to setting adjacent the traverse means 54A to maintain the secondary yarns in spaced-apart relationship.
Patent GB-944378-A (GB)
Title: High speed machines for the shaping of metal by cold forming
IPC: B21J7/14
Filed: 1959-12-29
Abstract: 944,378. Swaging machines. G. H. APPEL. Oct. 24, 1960 [Dec. 29, 1959], No. 44128/59. Heading B3H. A cold-swaging machine has at least three radial dies 123 actuated by oppositely rotating motors 118, 131 which act simultaneously on each die so that only radial components of forces are transmitted thereto. Four dies 123 embracing a workpiece 152 are slidable in radial guides of a rotating cage 151. Each die abuts a die mover 122 carrying a shaft S mounting roller bearing R, RR. The two outer bearings R are engaged by cam projections 120, 121 on outer cam rings 118, 119, driven in the same direction by pinions 116, 117 on shaft 114; the two inner bearings RR are engaged by cam projections 132 on a middle cam ring 131 driven in the opposite direction by pinion 130 on shaft 115. The three cam projections 120; 121, 132 act simultaneously on the die mover 122 whereby transverse forces are balanced out. In another embodiment, Figs. 1-3 (not shown), two juxtaposed oppositely rotating rings each carry spaced rollers which engage the radially movable dies. Specification 768,834 and U.S.A. Specifications re-issue 815,844 and 2,331,477 are referred to.
Patent GB-1523464-A (GB)
Title: Apparatus for providing a halftone pattern on a photosensitive member
IPC: G03G15/01
Filed: 1975-10-29
Abstract: 1523464 Half-tone electro-photography; spatial filtering XEROX CORP 29 Oct 1975 [7 March 1975] 44606/75 Headings G2J and G2X Apparatus for providing half-tone patterns on photo-sensitive members particularly in multicolour electro-photographic copying, comprises an image projection system incorporating a phase screen the depth of the grooves in the phase screen being pre-selected so that the resulting spatial frequency of pattern on the photo-sensitive member is substantially constant over the preselected wavelength range or ranges of the light projected on to the screen. A constant half-tone pattern will generally be produced if the phase shift is kept to 90 degrees Œ 25 degrees, or to multiples of 90 degrees within the 25 degrees variation. The phase-screen preferably comprises two grooved substrates 72, 74 Fig. 3a, the grooves 76, 78 being orthogonally orientated for use with a flash-type illumination system. A single grooved substrate Fig. 2a (not shown) can be used with a scanning imaging system. Using a glass screen in air, groove depths of 0À23 to 0À27 microns will cover the 400-700 nanometer range. Groove depths of 2À6 to 3À1 microns may be used with narrow bands of blue green and red light.
Patent GB-1529448-A (GB)
Title: 6-amidinopenicillanic acid derivatives
IPC: C07D499/00
Filed: 1975-10-29
Abstract: 1529448 1<SP>1</SP>-Ethoxycarbonyloxy-ethyl 6-(hexahydro-1H-azepin-1-yl-methyleneamino)-penicillanate LEO PHARMACEUTICAL PRODUCTS Ltd AS 8 Oct 1976 [29 Oct 1975] 44676/75 Heading C2C [Also in Division A5] Novel crystalline diastereomeric forms of 1<SP>1</SP> - ethoxycarbonyloxyethyl - 6 - (hexahydro- 1H - azepin - 1 - yl - methyleneamino) - penicillenate or its hydrochloride are prepared (a) by adding an equivalent of HCl in propanol- 2 to an ethereal solution of mixture of the free base forms, treating the isolated crystals with acetone and recrystallizing them from methanolether to give one diastereomeric hydrochloride, and evaporating the mother liquor and treating the residue with methanol-ether or propanol-2- diisopropyl ether to crystallize the other diastereomeric hydrochloride; or (b) by dissolving the free base in ether, adding cold water, adjusting to pH3À0 with NHCl, freeze-drying the aqueous phase, treating the amorphous mixture with acetone to crystallize one diastereomeric hydrochloride, evaporating the mother liquor, treating the residue with aqueous NaHCO 3 , purifying the liberated base with an ionexchange resin, converting it to the hydrochloride and crystallizing it from ethyl acetate to give the other diastereomeric hydrochloride; or (c) by neutralizing an aqueous solution of the diastereomeric hydrochloride with a base, such as NaHCO 3  to crystallize the diastereomeric base. 1<SP>1</SP>-Ethoxycarbonyloxyethyl 6-(hexahydro-1H- azepin-1-yl-methyleneamino)-penicillinate is prepared as an amorphous mixture of diastereomers by reacting potassium benzylpenicillanate with 1-chloroethylethyl carbonate, treating the resulting 1<SP>1</SP>-ethoxycarbonyloxyethyl benzylpenicillanate with phosphorus pentachloride and quinoline in chloroform, and treating the resulting 1<SP>1</SP>-ethoxycarbonyloxyethyl 6-amino-penicillanate with the dimethyl sulphate complex of N-formyl-hexamethyleneimine.
Patent GB-1200740-A (GB)
Title: Strain gage rosette calculator
IPC: G06G7/68
Filed: 1967-10-03
Abstract: 1,200,740. Analogue calculating. AUTOMATION INDUSTRIES Inc. 3 Oct., 1967 [3 Oct., 1966], No. 44920/67. Heading G4G. Theory.-Strain gauges 11, 12, 13 angularly disposed mutually at 45 degrees on a test surface 10 (Fig. 1a) develop measured strains e 1 , e 2 , e 3  which are plotted abscissaly in a Mohr circle construction (Fig. 2a) wherein the centre is the midpoint between e 1  and e 3  and the projections of e 1 , e 3  to the circle define radii displaced about the centre at twice the angles of the physical displacement of the gauges; the radii from the projections of e 1  and e 3  defining a diameter and the radius from the projection of e 2  being perpendicular thereto. It is shown that e max  = A + (C sin 2# + B cos 2#) (1) e min  = A - (C sin 2# + B cos 2#) (2) γ max  = 2 (C sin 2# + B cos 2#) (3) and # is given by B sin 2# - C cos 2# = 0 (4) where e max  = maximum strain e min  = minimum strain γ max  = maximum shear. Computation.-Signals e 1 , e 3  representing the strain readings of gauges 11 and 13 are applied to adding amplifier 14 producing output proportional to e 1  + e 3 /2 = A and these signals are also applied to adding amplifier 16 with sign inversion of e 3  to energize with output proportional to B = e 1 -e 3 /2 a sin/cosine potentiometer 20 producing outputs representing B cos 2# and B sin 2#. Signals e 1 , e 2  and e 3  representing the readings of strain gauges 11, 12, 13 are combined with sign inversion of e 1  and e 3  in adding amplifier 18 to produce output signal proportional to C = e 2 -e 1  + e 3 /2 energizing sin/cosine potentiometer 22 whose outputs represent C sin 2# and -C cos 2#. The potentiometers are adjusted by control 21 to angle 2# at which equation (4) is satisfied as indicated by galvanometer 26, and the remaining outputs are combined at adding amplifier 36 to produce a proportional signal satisfying equation (3) for maximum shear. The outputs of amplifiers 14 and 36 are combined in similar polarities in adding amplifier 40 and in opposed polarities in adding amplifier 38 to produce signals satisfying equations 1 and 2 for maximum and minimum strains. The sine/cosine potentiometers may be adjusted by a null scaling servosystem. It is shown that for stress measurements where # represents linear stress T represents shear stress Á = Poisson's ratio E = modulus of elasticity so that by inserting a scaling circuit (Fig. 4, not shown) comprising a variable feedback amplifier introducing thefactor 1/1 - Á or 1/ 1 + Á with variable output potentiometer introducing the factor E, in series with amplifiers 14, 16, 20 the outputs can be made to represent # max , # min , and T respectively. A graduated dial may be attached to the sin/cosine potentiometers.
Patent GB-1156638-A (GB)
Title: Apparatus for Treating Webs of Material and More Especially for Dyeing or Bleaching Thereof
Inventor: BENZ ERNST
IPC: D06B19/00
Filed: 1966-10-11
Abstract: 1,156,638. Textile treating apparatus. E. BENZ. 11 Oct., 1966, No. 45462/66. Heading D1L. Apparatus for treating material webs comprises at least two chambers, at least one having means for unwinding web from a supply therein, means for feeding the web through a duct to the other or another of said chambers, means for maintaining atmospheric conditions within the chambers comprising two pipes adapted for supply or discharge of treating medium and arranged so that each chamber is associated with one of the pipes, a shwt-off valve associated with each pipe and a sensing device in the duct detect flow of treatment medium between the chamber and to control opening and closing of the shutoff valves, and means for rewinding the web. In a preferred embodiment, the web material 3 is unwound from a supply within chamber 1 to which air under pressure is supplied via pipe 13 with shut-off valve 16. The web 3 passes round guide rollers and through a duct 4 in the form of an inverted V, the apex being higher than the highest level of either chamber, and enters treatment chamber 2 in which a pressurised steam atmosphere is maintained. Condensate discharge pipes 19 are provided in each chamber. An impregnating trough and squeeze rollers may be provided in the feed chamber in front of the communicating duct. Alternatively, an impregnating chamber may be disposed between the feed and rewind chambers, the web material following a zig-zag path through the impregnating chamber. The sensing devices comprise in each limb of the duct, a pitot tube and/or a temperature sensitive element.
Patent GB-1171925-A (GB)
Title: Process for Producing a Copying Paper.
IPC: B41M5/10
Filed: 1966-10-11
Abstract: 1,171,925. Polymer compositions. CARBON PAPER CO. Ltd. 11 Oct., 1966 [24 June, 1966], No. 45486/66. Heading C3P. [Also in Division D2] A composition for copying paper (see Division D2) comprises a suspension of discrete, particulate polyethylene of low molecular weight, a discrete particulate wax or waxy acid, amide or alcohol, and an organic solvent in which both are partially dissolved. The composition may also contain a film-forming synthetic resin, synthetic rubber or cellulose derivative, and a white pigment. In the examples: (1) the composition is made by dissolving polyethylene of low molecular weight and stearic acid in hot toluene, cooling and adding light petroleum which precipitates a large part of the polyethylene and stearic acid as fine particles; (2) the composition is made by dissolving polyethylene of low molecular weight, castor wax and butyl rubber in hot toluene, and then cooling the solution; (3) the composition comprises polyethylene of low molecular weight, stearic acid, ethylcellulose, methanol and toluene; (4) the composition comprises polyethylene of low molecular weight, stearic acid, butyl rubber, titanium white, calcium carbonate and toluene.
Patent GB-1514927-A (GB)
Title: Process for the production of boric acid
IPC: C01B35/10
Filed: 1974-10-23
Abstract: 1514927 Boric acid production UNITED STATES BORAX & CHEMICAL CORP 10 Oct 1975 [23 Oct 1974] 45832/74 Heading C1A Boric acid is separated from a concentrated aqueous solution of boric acid containing Na salts by adding thereto a water immiscible monohydric alcohol containing 6 to 12 C atoms and an inert diluent, whereby boric acid is extracted selectively into the organic phase, and subsequently separating the organic phase from the aqueous phase and crystallizing out boric acid from the former.
Patent GB-947951-A (GB)
Title: Method for the purification of hot gases
Inventor: FRITZ WILFRED J
IPC: B01D51/10
Filed: 1961-12-21
Abstract: <PICT:0947951/C3/1> A method for the continuous purification of hot soot-laden gas comprises contacting a stream of the gas with a quenching liquid at 12 to form a gas-liquid mixture, separating the gas and liquid at 72, scrubbing the separated gas with clean scrubbing liquid at 74, and using this liquid as the quenching liquid.  Soot-laden gas from a producer 20 enters a quenching apparatus 12, of the kind described in Specification 752,431, where some soot is entrained in the liquid.  The gas-liquid mixture impinges on a baffle 72 in a compartment 46 in a vessel 40, the gas rising through an aperture 76 in the top of the compartment to enter a scrubber containing packing 74, e.g.  Raschig rings. Clean liquid from a source 90, combined, as shown, with liquid separated from the mixture, is delivered to the scrubber via conduit 88. The separated liquid drops into a sub-compartment 60, and goes via conduits 64, 86 and filter 66 to join the fresh scrubbing liquid. Used scrubbing liquid goes via passage 56 to a subcompartment 62 for delivery via conduit 28 to the apparatus 10, a cowl over the aperture 76 preventing this liquid entering the subcompartment 60.
Patent GB-1318953-A (GB)
Title: Meashing screw-rotor machines
IPC: F04C18/16
Filed: 1970-09-29
Abstract: 1318953 Rotary positive displacement machines LENINGRADSKY NAUCHNO-ISSLEDOVATELSKY I KONSTRUKTORSKY INSTITUT KHIMICHESKOGO MASHINOSTROENIA and SPETSIALNOE KONSTRUKTORSKOE BJURO PO KOMPRESSORESTROENIJU 29 Sept 1970 [20 Oct 1969] 46206/70 Heading F1F In a meshing-screw-rotor compressor, or motor, the torque on the female rotor 3 and pulsating loads on the bearings and synchronizing gears are reduced by the profile of each tooth 4 of the male rotor 2 having epicycloidal portions A, C 1  and A 1  C<SP>1</SP> 1 , an hypotrochoidal portion C 1  D 1  and an arc of a circle C<SP>1</SP> 1  D 1 . The portion A 1  C<SP>1</SP> 1  may be replaced by an extension of the arc C<SP>1</SP> 1  D 1  to the point A 1 , this arc having a radius which is less than that of the tip circle 9 and may be greater than the tooth height with the centre of curvature inside of the pitch circle 7. The portions A 1  C 1  and A 1  C<SP>1</SP> 1  are the loci of points A 2  and A 2 <SP>1</SP>, respectively, on the pitch circle 6. The portion C 1  D 1  is the focus of a point S on an extended radius of a circle 8 rolling on the circle 7.
Patent GB-968285-A (GB)
Title: Improvements relating to polymer-coated metal sheets
IPC: B21B3/00
Filed: 1961-12-27
Abstract: By cold rolling a metal sheet coated with a film of polymer, the adhesion and other physical properties of the film are improved.  The film serves as a lubricant for the rolling and as a protective coating for the sheet which, however, allows further working of the sheet, if desired.  (The rolls may be heated or cooled during rolling for controlling the temperature of bonding). The increased adhesion is due to minute roughening of the metal surface after rolling and also to reactive sites being formed in the polymer on stressing to cause chemical bonding.  Heat treatment after rolling can further increase the film adhesion. The sheet thickness is from 5-75 mils, the film thickness at least 0,2 mils thick, and the rolling temperature below 400  DEG F. Suitable metals include steel, copper, iron, aluminium and tin plate, and suitable plastics include film forming polymers and interpolymers of vinyl acetate, vinyl alcohol, vinyl chloride, vinylidene chloride, vinyl acetals, styrene, butadiene, isoprene, acrylate and methacrylate esters, acrylic and methacrylic amides, acrylonitrile, ethylene, propylene, tetrafluoroethylene and ethylene oxide.  Appropriate plasticizers may be used but it is preferred to use plasticizer-free systems.  The film may be formed by doctoring on of plastisols or emulsions, rolling or spraying on of solutions, extruding or calendering of melts or of plastics softened with volatile solvents, or pressing on of preferred films.
Patent GB-985544-A (GB)
Title: Textile machinery cleaning apparatus
IPC: D03J1/00
Filed: 1963-11-26
Abstract: 985,544. Confining and removing lint and dust from textile machines. GRINNELL CORPORATION. Nov. 26, 1963 [Nov. 26, 1962], No. 46617/63. Heading F4X. Lint formed in a textile machine and deposited on an apron arranged beneath lint producing parts of the machine, is carried by the apron to a suction manifold and introduced into said manifold by positive means which are operatively associated with the apron and are substantially independent of air movement. In the arrangement shown, for a loom, the apron comprises an endless belt 24 carried on two rollers 26, 28 the roller 28 being the driving roller. The belt is depressed at its centre to clear the loom drop wires 20 from which the lint drops on to the belt. The lint is carried by the belt towards an air extraction manifold 32 in which the suction is maintained by a motorized fan 58 drawing the lint from the manifold through a duct 50 and a flexible tube 52 to the lint collecting box 54. Ingress of air to the manifold is through perforations 46 (Fig. 3, not shown) in the base thereof. The positive means for transferring lint from the belt to the manifold comprises an idler roller 60 maintained in contact with the belt as it passes over the driving roller 28 so that the lint is gripped between the roller 60 and the belt and carried through the nip into the manifold 32. At the front of the manifold is a trough, an upper edge 88 of which forms a scraper to remove lint material adhering to the belt surface. Such material accumulates in the trough and ultimately forms a wiper for the belt. Means to ensure correct tracking of the belt over the rollers and to prevent belt creep, are described. Specification 982,925 is referred to.
Patent GB-1439913-A (GB)
Title: Valve
IPC: F16K31/42
Filed: 1974-10-29
Abstract: 1439913 Valves ETABS CARPANO & PONS 29 Oct 1974 [31 Oct 1973] 46724/74 Heading F2V A main valve 7 between an inlet 2 and an outlet 3 is held closed by inlet pressure entering a chamber 12 through a passage 13 and opens when the chamber is connected to the outlet through a passage 19 by momentary lifting of a clack 22, connection of the chamber to the outlet being maintained through a passage 32 after a second clack 30 has been lifted through a spindle 8 by the opening of the main valve 7. Momentary lifting of a third clack 34 connects the chamber 12 to the inlet through a passage 63 of larger cross-section than the passage 13 to close the main valve. Solenoids 37, 38 for the clacks 34, 22 may be replaced by manually operable plungers (55, 56, Fig. 2).
Patent GB-1105195-A (GB)
Title: Dyeing and printing polyester materials and polyamide materials
Inventor: KRATZER OTTO
IPC: C09B1/22
Filed: 1966-10-19
Abstract: Polyester and polyamide materials are dyed with anthraquinone disperse dyes of formula <FORM:1105195/D1-D2/1> in which R is an aromatic radical preferably phenyl or naphthyl and which may bear one substituent or two or more identical or different substituents but not any sulphonic acid or carboxylic acid groups.  Examples of such substituents are lower (C1-C4) alkyl groups which may be linear or branched and contain substituents, e.g. halogen, hydroxy, and primary amino groups; further substituents of group R are alkoxy groups, phenoxy groups, hydroxy groups, halogen atoms, amino groups and alkyl amino groups.  The substituents in R are preferably present in m- and/or pposition to the arylamino-group.  The textile materials are dyed at 95-100 DEG C at atmospheric pressure or at 100-140 DEG C, conventional carriers may also be used.  Blue shades are obtained.