baber/WOPTO huggingface dataset:
Patent GB-1159778-A (GB)
Title: Improvements in the Control of Stamping Machines.
Inventor: DE RIJK PETRUS
IPC: B21D28/04
Filed: 1968-04-18
Abstract: 1,159,778. Cutting-out presses. DACO MACHINEFABRIEK N.V. 18 April, 1968 [19 April, 1967], No. 18332/68. Heading B4B. A cutting-out press has at least one cutting- out tool which is displaceable along an overhead runway, and at least one mechanism which controls the movement of the tool along the runway in accordance with at least one adjustable predetermined period of time. The press comprises an upper portion 3, Fig. 1, which is attached to a chain (not shown) which extends parallel to a guide rail 2, and a lower portion 4 which is movable vertically hydraulically, by pumps in the space 5, with respect to material 11, e.g. a rubber sheet, disposed on a layer 1.5. The portion 3 comprises switches 12, 13 which are opened when they engage adjustable stops 8, 9 on the rail 2 to stop motors 6, 7, Fig. 2, which move the portion 3 to the left and right. The material 11 is fed, between cutting-out operations, by means of rollers controlled by a motor 16, Fig. 2. The cutting-out programme is established by means of a control panel comprising elements 17, 18, 19, Fig. 2, which regulate the delay of timing  relays in a relay box 14. Between each two successive cutting-out operations, the cutting-  out tool may be turned through 180 degrees by turning a knob on the control panel. Mechanism is provided which ensures that the cutting-out tool returns to its predetermined starting point after each forward and return movement. This mechanism comprises a switch which has a wheel 21, Fig. 1, engageable with a recess 20 in the stop 8. The switch is included in a circuit which comprises contactors (26, 27), Fig. 4 (not shown), relays (28, 29, 30) and contacts (33) to (42).
Patent GB-563086-A (GB)
Title: Improvements in or relating to valves for controlling the flow of liquids
IPC: F16K15/16
Filed: 1942-12-24
Abstract: 563,086. Non-return valves. SMITH, S. H., SUTHERLAND, C. A. R., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 24, 1942, No. 18335. [Class 135] A non-return valve, particularly adapted for use in the fuel tanks of aircraft and other fastmoving vehicles, comprises a valve-seating member 1 of substantially rigid thin sheet material having a flanged aperture 2 formed therein to constitute a valve seating adapted to co-operate with a flexible tongue'-like closure member 4. The valve member may be made of leather or of fabric material coated with a petrol-resisting rubber or rubber-like material and is reinforced by plates 6, 7 of metal and/or plastic material. A sheet-metal stop member 8 for limiting the opening of the valve is folded over at 5 to embrace the upper edge of the closure member and the sealing member and is secured thereto by rivets 9.
Patent GB-562255-A (GB)
Title: Improvements in and relating to spectacles and the like
IPC: G02C7/16
Filed: 1942-12-28
Abstract: 562,255. Goggles. JAMESON, W., and JAMESON, Ltd., W. Dec. 28, 1942, No. 18416. [Class 97 (i)] Flexible leather or other side cups 7 are mounted on flanges 3, or lugs, in one with, or secured to, the eye rings 1 of a frame designed for attachment to a spectacle frame, the rings 1 being connected by a bowed spring 2 and inwardly-projecting pins 6 being provided for engagement with the eye rings of the spectacles. As shown, the flanges 3 have grooves 4 fitting between the rings 1 -and the windows 5, the pins 6 project from the flanges and the flanges have cut-away portions 8 to accommodate the spectacle hinges. The cups 7 may have stiffeners 9 secured under a covering 10 or otherwise, and may have loops or slots receiving the spectacle ear-pieces. In modifications, the flanges 3 may be brazed &c. to the rings 1, or be integral therewith. Alternatively, they may be carried by crescent,-shaped pieces secured to the rings 1, being thus spaced therefrom, and the pins 6 may be angled and secured. to the rings 1 or to the crescent-shaped pieces.
Patent GB-436979-A (GB)
Title: Improvements relating to junction cleats for connecting straight and camber girders to girder legs, without bolts
IPC: E21D11/34
Filed: 1934-06-22
Abstract: 436,979. Mine-roof supports. HOOKS, J. A., 293, Stenhouse Street, Cowdenbeath, and MITCHELL, A. I., Woodend House, Woodend, Cardenden, both in Fifeshire. June 22, 1934, No. 18469. [Class 20 (ii)] A metal clip for securing the ends of girders to uprights comprises two web portions A, C disposed at right-angles and each portion having its edges turned over at B and D to enclose the flanges of the girders and the uprights. The web portion. A may have its end upturned at G to act as a stop to the end of the girder.
Patent GB-718747-A (GB)
Title: A device for examining the eye
Inventor: VERE DUNCAN WRIGHT
IPC: A61B3/12
Filed: 1952-07-22
Abstract: 718,747. Eye-examining apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 13, 1953 [July 22, 1952], No. 18502/52. Class 97(1) Apparatus for estimating the brightness of red light reflected by the eye comprises means for directing a beam, including red light, from a given light-shape into the eye and for producing a redcomparison field, illuminated by the same source and observed in proximity to the beam reflected by the eye the brightness of the comparison field being adjustable to a brightness equal to that of the reflected beam. By combining this device with means for simultaneously measuring the diameter of the pupil of the eye, the apparatus may be used to estimate the amount of sugar in the blood by observation of the eye alone. As shown the device .comprises a casing 11 having a light-excluding cup 14 fitting over the eye 13 of the patient and attachable to the lamp-carryings handle 16 of an ophthalmoscope. Light from the lamp 15 passes a red filter 18 and is directed to the eye 13 by a lens 19 and mirror 20 part of the beam falling on a semicircular comparison plate 21 having a white or red front surface and rotatable about an axis 22 perpendicular to the axis of the casing 11. In comparison surface 21 is viewed by an observer 26 through an aperture 23 in the mirror 20 simultaneously with the eye 13, and the illumination of the comparison surface 21 is adjusted roughly by grey wedges 28 and finally by rotation of the surface 21 about the axis 22 to adjust the intensities. A'straight edge 29 is attached to the surface 21 and by rotating the latter the diameter of the pupil of the eye 13 may be measured between the edge 29 and a member 30. Alternatively the edge 29 may be replaced by a series of projections spaced apart a known distance to effect measurement of the pupil diameter.
Patent GB-604509-A (GB)
Title: Improvements in or relating to the concentration of iron ores
IPC: B03D1/02
Filed: 1944-09-28
Abstract: In a method of concentrating oxidized iron ores from a quartz gangue, an aqueous pulp of the one is treated with an anionic collecting agent, consisting of a higher fatty acid or a soap thereof, a resin acid or a soap thereof or a mixture thereof, lime and an aqueous solution of starch treated to make it mixable with water, the duration of said treatment being such that the formation of dextrine is avoided, the treated pulp being then subjected to froth flotation to float off the gangue.  The starch may be rendered mixable with water by boiling it with water, by treatment with aqueous caustic soda, an acid compound or an oxidizing compound in aqueous solution, examples of such compounds are given and include sulphuric, hydrochloric and nitric acids, potassium permanganate and sodium peroxide.  The pulp may be agitated after the addition of each reagent and may be subjected to froth flotation after each addition. The pulp may be treated with starch, lime and collecting agent, then additional lime and collecting agent, and finally with collecting agent, each of the additions being followed by flotation to remove the gangue.
Patent GB-984208-A (GB)
Title: Apparatus for spreading powdered or granular materials on the ground or on plants
Inventor: THIEBAUD JEAN EDOUARD
IPC: A01C17/00
Filed: 1960-05-26
Abstract: 984,208. Powder distributers, THIEBAUD BOURGUIGNONNE (STEB) S.A. May 23, 1961 [May 26, 1960; July 19, 1960], Nos. 18590/60 and 25078/60. Heading A1D. Apparatus for spreading powered or granular material comprises a hopper 11 which is detachably mounted in a frame 1 arranged to be attached to a tractor lift linkage. The bottom of the hopped is provided with openings which are adjusted by means of a plate provided with corresponding openings. Below the hopper two adjustable collars 33, 38 are provided and have openings through which material flows to a distributing disc 31. The two collars 33, 38 may be adjusted to alter the effective size of the openings and rotated to adjust the pattern of the material spread on the ground. A removable agitater is provided in the hopper and the parts are driven from a shaft 50 connected to the tractor power shaft.
Patent GB-516181-A (GB)
Title: Improvements in or relating to froth flotation concentration apparatus
IPC: B03D1/16
Filed: 1938-06-22
Abstract: 516,181. Concentrating ores &c. LAYERS, H., and MINERALS SEPARATION, Ltd. June 22, 1938, Nos. 18596/38, 3667/39, and 14652/39. [Class 82 (ii)] Froth flotation apparatus comprises a pulp vessel with a circulating zone in the lower portion, an agitation zone above the circulating zone, and a froth forming zone above the agitation zone, an impeller at the level of the agitation zone, an upcast pulp-feed pipe below the impeller and a downcast air-tube above the impeller, the latter drawing air down the downcast tube and pulp up the pulp-feed pipe and discharging them into the agitation zone. In Figs. 1 and 2, a series of square pulp vessels 11, 12, 13, has pulp feed pipes 18, with upper flanges 20, leading from a feed chamber 16 or a preceding vessel; above each flange 20 is an impeller 21 with its shaft 22 surrounded by a downcast air pipe 23 with a lower flange 24. The impeller may be integral or built up and may be covered with rubber and comprises a disc 25, Fig. 4, provided on its lower side with curved pulp-impelling blades 29 and on its upper side with air impelling-blades 27 tangential to a common circle concentric with the axis, the blades 27 protruding beyond the disc and having the inner ends advanced in the direction of rotation. The downcast pipe 23 may be replaced by a number of pipes entering the flange 24 within the periphery of the impeller. In the agitation zone around the impeller are four diagonal baffles 30 connected to an annular baffle 31, while below, openings 32 permit return of some of the pulp. Outlet 33 has a weir 34 which determines the liquid level while inclined crowding baffles 36 lead to lateral froth overflow lips 35. In Fig. 3, pulp enters the vessels through openings 42, 43 and vertical pulp-feed pipes 40 have lower openings 41.
Patent GB-851461-A (GB)
Title: Improvements in or relating to a process for the production of caustic alkali solutions from alkali metal amalgams
Inventor: DERIAZ MARCEL GEORGE
IPC: C25B1/42
Filed: 1958-06-11
Abstract: In the production of caustic alkali by reacting alkali metal amalgam with water or dilute caustic alkali in the presence of amalgam decomposition material, the decomposition material is titanium or a titanium alloy.  The titanium or alloy should be in contact with a metal which readily amalgamates with, but does not dissolve in, mercury, e.g. Fe or Ni.  The decomposer may be a trough provided with titanium or alloy as grids, spaced parallel strips held in place at each end by a steel bar at right angles, expanded metal or gauze, or a de Nora or Mathieson tower provided with titanium or alloy, as rings, rolled gauze, chippings, turnings, wire, or grids.  In the de Nora tower, the tower is flooded with the aqueous phase and a counter-current of dispersed amalgam, while the Mathieson tower is flooded with amalgam and treated with a co-, or counter-, current dispersion of aqueous phase.  The process may also be effected in accordance with Specification 846,603 where the column and annulus are packed with titanium or alloy.
Patent GB-659469-A (GB)
Title: Improvements in or relating to electric frequency discriminators
Inventor: GRAYSON HARRY
IPC: H03D3/12
Filed: 1949-07-15
Abstract: 659,469. Frequency modulation. STANDARD TELEPHONES & CABLES, Ltd. July 15, 1949, No. 18687. [Class 40 (v)] In a receiver for frequency-modulated waves, the waves after a preliminary frequency reduction (e.g. to 100 mc/s.) in the heterodyne stage 1, 2, are amplified and fed to two parallel paths. In one path the waves are mixed at 5 with waves from a lower frequency source 7 (e.g. 70 mc/s.), and in the other, 6, with waves from a higher frequency source 8 (e.g. 130 mc/s.). The difference frequencies filtered at 9, 10 are of the same value (e.g. 30 mc/s.), but their frequency deviations are in opposed sense. Amplifiers 11; 12 feed the outputs to separate discriminators 14, 15 and the detected signal is taken jointly from them at 16. The Specification includes detailed diagrams of the valve circuits employed, Figs. 2 and 3 (not shown). The amplifiers 11, 12 may each comprise three pentode valves in cascade. Each middle stage feeds an amplitude-modulation detector which provides negative feed-back through an amplifier to the first stage, with the object of removing amplitude modulation. The discriminators 14, 15 comprise inductance coils fed with constant current from the third pentode stage, and each coil is connected to a rectifier which feeds the desired signal to a two-stage pentode amplifier. The output signal is taken through a transformer connected between the cathodes of the output stages of these amplifiers. The invention is distinguished from that described in Specification 546,721 by the use of automatic amplitude control in the amplifiers 11, 12.
Patent GB-996247-A (GB)
Title: Reactive monoazo dyestuffs
Inventor: BARBEN IAN KNOWLES
IPC: C09B62/028
Filed: 1962-05-15
Abstract: The invention comprises monoazo dyes of formula <FORM:0996247/C4-C5/1> wherein one L is a hydroxy group and the other is a phenylazo group which may be substituted; n is 1, 2 or 3; p is 1 or 2; R is hydrogen or a C1-C4 alkyl group; R1 and R2 are methyl groups and R3 and R4 are hydrogen or a methyl group or when R3 and R4 are hydrogen R1 and R2 are joined to form a tetra- or penta-methylene radical or R1 and R3 and R2 and R4 are joined together to form in each case a trimethylene radical; and X is a divalent mono- or di-chloropyrimidyl or 5-cyanochloropyrimidyl radical or divalent 1,3,5-triazinyl radical substituted in the 6-position by hydrogen, a C1-C4 alkyl or alkoxy group, a phenyl, phenoxy, amino, N-(C1-C4 alkyl) amino or anilino or N-(C1-C4 alkyl) anilino which may be substituted. The dyes are prepared by reacting a hydrazine of formula <FORM:0996247/C4-C5/2> with an azo dye of formula <FORM:0996247/C4-C5/3> or by coupling a diazotized phenylamine with a coupling component of formula <FORM:0996247/C4-C5/4> wherein one L1 is a hydroxy group and the other a hydrogen atom.  Specified hydrazines are N,N,N1 - trimethyl - and N,N,N1,N - tetramethyl - hydrazines, N - amino - piperidine or - pyrrolidine, 1,5 - diazobicylo - (0,3,3) - octane and, preferably, N,N-dimethylhydrazine. The dyes may be used to colour wool, silk and polyamide and in particular cellulose textiles by the usual reactive dye processes in red shades. The preparation of the dyes is described in examples.
Patent GB-644593-A (GB)
Title: Method and apparatus for spray-coating articles
IPC: B05B5/08
Filed: 1947-07-14
Abstract: Articles are coated by moving them in succession along a predetermined path, creating over the surface of the moving articles a high voltage electrostatic field, the lines of force of which are generally normal to such path, and spraying liquid coating material into the field so that the spray-direction possesses a substantial component parallel to the path of article travel and generally normal to said lines of force.  Referring to the drawings, cabinet 10 comprises <PICT:0644593/III/1> <PICT:0644593/III/2> <PICT:0644593/III/3> <PICT:0644593/III/4> side walls 11, top 12 and floor plates 13 sup ported by posts 14, while conveyer chain 15 travels past loading station 26, below the floor of the cabinet and past unloading station 25, and carries carrier units 28 including a rod 33 extending upwardly through the opening between the two floor plates 13 of the cabinet and carrying at its upper end an electrode 35 serving as a support for article 36 to be coated.  Spray guns 44 are carried on horizontal rods 43 clamped to rods 41 slidable along rods 37 and are arranged to direct a spray 46 of coating material in the general direction of the opposite end of the cabinet.  A pair of tubular insulating members 47 are mounted on each side wall 11 of the cabinet and carry strung between them a fine wire electrode 48 connected to one terminal of an electrical generating apparatus, the opposite terminal of which is connected by a conductor 51 to a pair of wires 52 extending longitudinally beneath the floor of the cabinet and adapted to engage the vertical rods 33 in their travel through the cabinet and so to complete the electric circuit.  The articles may, if desired, be slowly rotated to insure uniform coating. This is done by means of conveyer 64 mounted on plate 67 movable toward and away from conveyer 15 so as to bring chain 64 into and out of mesh with sprockets 31 on conveyer 15.  Plate 67 has secured thereto a pin 70 carrying a T-fitting 72 which carries rod 74 passing through fixed brackets 77 to T-fitting 81 comprising stud 83 and handle 82 which can be moved so as to fit inside or outside detent 84 secured to the cabinet wall.  Spring 80 acting against washer 78 held by pin 79 normally urges the chain 64 into engagement with sprockets 31 and moving of stud 83 inside detent permits this, while moving it outside the detent breaks the engagement.  In a modification (Fig. 7) in which only one side of an article is to be coated, the article 136 is carried by support 133, the discharge electrode is a metallic point 148 mounted on the end of one of the insulators 47 and the collecting electrode is a plate 135 mounted on a similar support on the opposite side of the path of travel of the article 136.
Patent GB-383916-A (GB)
Title: Improvements in or relating to card cases
IPC: A45C11/18
Filed: 1932-07-02
Abstract: 383,916. Card cases. FULLER,G.J.F.F. and HART, C. J. J. D., (trading as FULLER & CO., G. J.), 34, Oxford Street, London. July 2, 1932, No. 18730. [Class 18.] A leather &c. card case, e.g. for a pack of playing cards, is in the form of the cover of a book provided with a fastening strap 6 which passes across the open front of the case ; and an internal ejecting strip 8 or 8<1> is also provided which strip, when its free end 10 or 10<1> is pulled, ejects the cards. The ejecting strip can be threaded through the walls of the case and the free end thereof formed as the fastening strap ; or the ejecting strip can be fastened to the strap 6 so that as the latter is unfastened and bent back, the cards are ejected. Endpieces 2 sewn into position prevent the cards from moving out of the ends of the case. The strap 6 and the ejecting strip are formed of flexible material, e.g. leather or silk.
Patent GB-1181871-A (GB)
Title: Improvements in or relating to the Manufacture of Electrodes
IPC: H01M4/26
Filed: 1967-04-24
Abstract: 1,181,871. Sintered electrode making plant. SVENSKA'ACKUMULATOR A.B. JUNGNER. 24 April, 1967 [29 April, 1966], No. 18749/67. Heading H1B. [Also in Divisions C7 and F4] Plant for the continuous manufacture of sintered electrodes for secondary cells comprises means for sintering a metal powder on to a metal substrate to produce a sintered porous band, means for impregnating the sintered band with a solution of a salt of an active metal, means for drying the impregnated band in a gaseous medium, means for the alkaline precipitation of the active metal as a hydrated oxide in the pores of the band, means for rinsing the band with water, and means for electrolytically forming the active material in the band. Preferably the impregnating, precipitating and washing means are narrow curved vessels following the shape of a freely hanging band. In the embodiment described, a slurry of Ni powder is applied to a perforated, Ni-plated steel band, having a few narrow imperforate strips distributed over its width so that it can be cut into narrower electrodes and the Ni is sintered in a reducing atmosphere. The band passes through an impregnating device (Fig. 1, not shown) comprising a heated, narrow curved vessel 3, between rollers 2 and 4, the band 1 passing over roller 2 through vessel 3 and out over roller 4; the impregnating solution (nickel nitrate) being continuously fed through vessel 3 in the same direction as the band; through a drier (Fig. 2) in which hot air passes in the opposite direction to the band (see also Division F4); through another impregnating device and drier and then through a precipitator (Fig. 2) through which aq. KOH is passed, entering tube 9 at its input end and tube 11 at its output end and leaving through openings (not shown) in connecting tube 13; through a washing device (Fig. 2) using deionized water and a drier. After two more impregnation/precipitation cycles, as necessary, with the omission of the final washing and drying in the last cycle the band is passed in turn through three twin electrolysers (Fig. 4) for forming, washed and dried. In the twin electrolysers current is fed to counter-electrodes 32, 33 in compartment 25, passes through the band 1 into compartment 26 and out via the counter-electrodes 34, 35, the band being charged in compartment 25 and discharged in compartment 26. The charge/discharge current is maintained constant along the band by choosing the appropriate resistance for the counter electrodes and also constant in time. Negative electrodes are similarly made by impregnating with cadmium nitrate from which cadmium hydroxide is precipitated using a drum cathodizer (Fig. 3, not shown).
Patent GB-1277473-A (GB)
Title: Improvements in or relating to carriages for the suspension of a workman's cradle, platform or the like
Inventor: CHATER BRIAN ARTHUR
IPC: E04G3/34
Filed: 1969-04-11
Abstract: 1277473 Elevated railways W J BROOKER Ltd 8 July 1970 [11 April 1969] 18753/69 Heading B7L [Also in Division E1] A carriage adapted to travel along the upper part of a circular structure, for the suspension of an article therefrom, comprises end frames 10, 11 on which wheels or rollers 22, 24, 26 and suspension attachments 20 are mounted and tiebars 12 connecting the end frames, the tiebars being secured thereto at points A by swivel clamps permitting adjustment of the end frames so that they lie radially with respect to the centre of the circular structure. The swivel clamps (Fig. 2, not shown) each comprise an angle member carrying U-bolts which embrace a tie-bar 12 and an end frame upright. The wheels 22, 24, 26 run along, e.g. inner and outer surfaces of the wall of a circular tank 27 and a walkway 29. Alternative wheel arrangements and end frame constructions are disclosed, and the frame members carrying the wheels may be adjustable in length.