baber/WOPTO huggingface dataset:
Patent GB-638320-A (GB)
Title: Improved method and apparatus for controlling the consistency of a mixture of liquidand other material
IPC: G01N21/53
Filed: 1947-10-21
Abstract: 638,320. Controlling consistency of paper putp; felting. MERCER, R. (Hawley Products Co.]. Oct. 21, 1947, No. 28171. [Class 96] [Also in Group XXXV] The consistency of a mixture of liquid and pulp is controlled by a pair of photo-cells which compare the light transmission of the mixture with that of the liquid from which the pulp has been extracted. A relay-operated valve controls the admission of the mixture when the consistency falls. Pulp .and liquid are mixed in the beater tank 1 and pass to a storage tank 5 from whence the mixture is admitted to the felting tank 10 by a hydraulically-operated slide valve 12, controlled by a valve 20, in turn controlled by a solenoid in the control unit 24. The pulp is deposited on a porous felting former mounted on the felting carriage 25, and the water is withdrawn by suction to a header 26 from whence it returns to the felting tank 10 through an overflow 30 and through a glass windowed absorbtion cell 33, Fig. 3 (not shown). The mixture in the tank is pump circulated through a similar cell 32. Light from a pair of lamps passes through these absorbtion cells to photo-cells connected in the control circuit 24 (see Group XXXV) which opens the valve 12 whenever the consistency falls below a preset level.
Patent GB-1445060-A (GB)
Title: Centrifugal switch gas stream cleaning system
IPC: H01H35/10
Filed: 1974-06-25
Abstract: 1445060 Centrifugal switches BORG-WARNER CORP 25 June 1974 [17 Sept 1973] 28222/74 Heading H1N A centrifugal switch comprises a rotatable shaft 12, Fig. 2, carrying a resilient strip 52 extending parallel to the axis of the shaft 12 and supporting a movable contact 61 for movement radially outwards in response to centrifugal force and co-operating with a slip ring 60 mounted on a collar 33 of the shaft. The strip 52 is clamped to the shaft 12 by a ring 43 and has a bent over end 54 clamped by a slip ring 51. Spring loaded brushes 26, 27 co-operate with the slip rings. The effective length of the strip 52 is varied by an axially slidable collar 41 having a wedge shaped slot 57 to locate the strip 52 and a heel 59 at which the strip is clamped against the shaft. The collar 41 has circumferential teeth 62 engageable by longitudinal teeth 64 on a rotatable key 63 for moving the collar 41 axially. The response characteristics may also be varied by insertion of selected masses 69 in radial bores 37 behind the contact 61 and which may also be backed by springs (71), Fig. 4 (not shown), of selected characteristics. In a modification the switch may be normally closed and open at a predetermined speed. In this embodiment the fixed contact 82, Fig. 6, is mounted in a recess 160 in the shift 112 and is engaged by an inwardly facing contact 158 on a resilient strip 152.
Patent GB-1520018-A (GB)
Title: Diapers
IPC: A61F13/494
Filed: 1975-09-22
Abstract: 1520018 Disposable diapers COLGATEPALMOLIVE CO 22 Sept 1975 [3 Oct 1974] 28275/76 Divided out of 1520017 Heading A5R The subject matter of this Specification is substantially the same as that described in Specifications 1520017 and 1520019, but the claims are concerned with a diaper having an open topped pocket formed in the crotch region.
Patent GB-1389921-A (GB)
Title: Cigarette lighter having an actuating mechanism
IPC: F23Q2/28
Filed: 1972-06-16
Abstract: 1389921 Lighters WIEDEN & CO GmbH 16 June 1972 [9 December 1971] 28431/72 Heading F4F [Also in Division F2] A cigarette lighter has an actuating mechanism which comprises two movable lighter-casing side portions 11, 12 and two toggle levers 18, 19 pivoted on a shaft 20 and pivoted respectively to the side portions at positions 16 and 17 such that movement of the side portions moves the toggle levers to actuate the burner valve (32) Fig. 2 (not shown), and ignition device 22 of the lighter. As shown the two side members are pivotally mounted by pins 13 and 14 respectively and act through two toggle levers 18 and two toggle levers 19, one each of the toggle levers 18 and 19 having an extension 24 and 25 respectively for operating a generally arcuate lifting lever 26. A thrust member 21 is mounted on the shaft 20 and is guided for vertical movement. In operation the side portions are moved inwards and the thrust member moves downwards to operate a Piezo-electric transducer of the ignition device and the extensions 24 and 25 of the toggle levers pivot the lifting lever about pivot pedestals (31) to operate the burner valve. A cover 42 covers adjacent edges of the side portions and engages stop abutments 29 and 30 of the side members to limit outward motion thereof. Stop abutments 27 and 28 limit the motion of the lifting lever. A chamber 44 surrounds the burner nozzle and has an air opening adjacent four slit apertures (46) in the cover and a flame aperture (45) adjacent a flame aperture (43) in the cover. In the embodiment of Figs. 4 and 5 (not shown), the toggle levers extend beyond the axis of the shaft (20) to form extensions (33, 34) having spigots (35, 36) which engage in slots (38, 39) in a modified form of thrust member (21). The embodiment of Fig. 1 has a generally circular cross-section but the lighter may have a generally oval or generally polygonal cross-section. A locking device may be provided to prevent accidental operation of the lighter. The Piezo-electric transducer of the ignition device may be replaced by a magnetic ignition system.
Patent GB-1143419-A (GB)
Title: Sanitary assembly for personal wear
IPC: A41B9/12
Filed: 1966-06-24
Abstract: 1,143,419. Catamenial appliances. SOC. INDUSTRIELLE & AGRICOLE DE PREPONDS. 24 June, 1966 [6 July, 1965], No. 28503/66. Heading A5R. Sanitary knickers made of elastic fabric have an impermeable crotch lining 2 and fastening elements (3) comprising strips of looped fabric which detachably retain fastening elements (9), comprising strips of fabric with filament hooks (8), at opposite ends of the flexible support 7. A sanitary napkin or dressing is secured to the support by the filament hooks (8). The support may comprise an envelope which receives the dressing or napkin and which is formed by folding a piece of fabric into three, an impermeable sheet (14, Figure 2) being disposed on the inner side of the innermost fold.
Patent GB-1503175-A (GB)
Title: Sheet carrying device
IPC: B65H5/02
Filed: 1975-07-07
Abstract: 1503175 Transporting sheets J BOBST & FILS SA 7 July 1975 [2 Oct 1974] 28522/75 Heading B8R Sheets 4 are transported from a table 1 by endless conveyer 3 whilst being held in contact with the conveyer by a pressure roller 5 supported on an arm 8 movable between an advanced position 5<SP>1</SP> and a retracted position 5. The arm may be moved by an air cylinder acting on a support shaft 10 for the arm.
Patent GB-1356783-A (GB)
Title: Pressure-responsive arrangements
IPC: G01L7/08
Filed: 1970-06-12
Abstract: 1356783 Making pressure diaphragms SMITHS INDUSTRIES Ltd 4 June 1971 [12 June 1970] 28551/70 Heading B3A [Also in Division G1] To manufacture a pressure responsive device, e.g. a capsule comprising two diaphragms 12, 13 as shown in Fig. 2, or a bellows comprising a series of superposed annular diaphragms (Fig. 5, not shown), in which the edges 14 of the diaphragms which are bonded together are thicker than the remaining portions, each diaphragm is electro-chemically machined from a block of metal. The block is used as anode and an appropriately profiled cathode is used in the machining, an electrolyte such as Brine being passed between the anode and cathode while a direct current is passed between them. One of both faces of each diaphragm may be so machined. After machining the diaphragms are bonded together, e.g. by friction welding.
Patent GB-256832-A (GB)
Title: Improvements in means for carrying pumps for bicycle tyres and the like
IPC: B62J11/02
Filed: 1925-11-14
Abstract: 256,832. Rochford, A. H. Nov. 14, 1925. Attaching cycle &c. pumps to wearing-apparel. -Pumps for bicycle tyres and the like are formed or provided with a button adapted to be engaged with a button-hole on the wearing-apparel, or in a tab attached by a safety-pin to the wearing- apparel, for carriage on the person. A rubber ring A, Fig. 1, may be slipped over the barrel of the pump to carry the button C, or a piece G, Fig. 3, of metal or celluloid, according to the material of the pump, may be secured on the barrel for this purpose. Alternatively, the button C may be secured to the pump barrel by a tubular clasp N, Fig. 5.
Patent GB-305149-A (GB)
Title: Improvements in and relating to the prevention of corrosion of articles made of aluminium and aluminium alloys
IPC: C23C22/56
Filed: 1927-10-28
Abstract: 305,149. Jirotka, B. Oct. 28, 1927. Coating ; pickling.-Prevention of corrosion of surfaces of aluminium or aluminium alloys is effected by treatment for about 15-60 minutes with strong nitric acid of at least 25 per cent strength. Small amounts of salts of chromium, copper, cobalt, nickel, zinc, &c. may be added to the acid to obtain iridescent or coloured surfaces, or an alkali chromate may be added to increase the oxidizing action. In some cases the aluminium article while immersed in the acid may be conductivelv connected with carbon or other electrodes so that a closed circuit is formed. The prepared surfaces may be. subsequently coated electrolytically or, for example in the case of bobbins for silk or artificial silk, may be coated with resins, celluloid, varnishes, or paints, in which case some hydrochloric or sulphuric acid is preferably added to the nitric acid.
Patent GB-789293-A (GB)
Title: Improvements in and relating to methods and means for removal of material from solid bodies
Inventor: RUDORFF DAGOBERT WILLIAM ALFRE
IPC: B24B1/04
Filed: 1952-11-14
Abstract: 789,293. Cutting and working ceramic materials. SPARCATRON, Ltd. April 9, 1954 [Nov. 14, 1952], No. 28783/52. Class 124. [Also in Groups XXII and XXXVI] Material is removed from a ceramic workpiece by producing cavitation in a liquid layer between the workpiece and a closely adjacent tool by vibrating the tool and/or the work-piece. A tool 2 vibrated ultrasonically by a magnetostrictive generator 1 and heated to 99‹C., is positioned about 2 mm. from the work-piece 3 which is immersed in water 6 at 65‹-70‹C. Instead of water a liquid containing suspended particles or a solution or emulsion containing a material of low vapour pressure and in a state of disequilibrium under the conditions of operation can be used. The process may be combined with processes involving spark discharge or electrolysis as described in Specifications 637,872 and 748,485 [Group XXXVI] respectively.
Patent GB-429563-A (GB)
Title: Improvements in and relating to winding devices for tops
IPC: A63H1/02
Filed: 1934-10-08
Abstract: 429,563. Spinning-devices for tops. SCHMIDT, H., 37p, Freiheitsweg, Reinickendorf-Ost, Berlin. Oct. 8, 1934, No. 28797. [Class 132 (iii)] A detachable spin ning - device for tops comprises two rela tivelyrotatable parts 1 and 2, the uppe: part 1 having se cured to it two tube: 3 and 4 between which is located a helical spring 6 fixed at its upper end a 5 and terminating at its lower end in a hook 7. The part 1 is provided with a spring-loaded pin 8 engaging in a recess 9 of the part 2. The hook 7 is engaged by the spring-loaded pin 14 integral with the pin 15 and a projection 16 slidable in a slot 17. The part 2 is provided with a spring loaded pin 10 having a projection 11 slidable in a slot 12. In operation the pin 10 is raised and the pins 14, 15 pushed downwards and the spring 6 wound up by relative rotation of the parts 1, 2. The device is then placed on the top and lightly depressed causing the pin 15 to be pushed upwards and the hook 7 to be released which then engages one of a number of openings in the top and carries the top round with it. The action can be repeated for keeping the top spinning. If the top is to be spun in the hand and then thrown to the ground, the pins 10 and 15 are pushed downwards and the device is wound up and placed on the top for the pin 10 to engage an opening in the top and the pin 15 to be pushed upwards to release the hook 7 which engages one of the openings in the top. The pin 10 is then pushed upwards for the top to be spun and to drop to the ground. The device may be wound up when in contact with the top.
Patent GB-1348858-A (GB)
Title: Screw and nut assembly
IPC: B23Q5/40
Filed: 1972-06-20
Abstract: 1348858 Screw and nut gearing MOZAIR and HAMUL WERKZEUGMASCHINENFABRIK KG 20 June 1972 [16 Nov 1971] 28808/72  Heading F2Q In a screw 1 and nut 2 gearing in which the nut 2 is moved axially through the intermediary of a bearing 3, inclined as shown at 45 degrees to the screw axis, the centre of the bearing is not coincident with the axis of the screw, the bearing being shifted laterally, distance d being less than distance D in Fig. 2. The position of the bearing is adjustable through screws 6 and a screw 10 (which can move the bearing when screws 6 are slackened). The side to which the bearing is moved depends on the sense of the screw 1, this being a right-hand screw in the example shown. The invention is stated to result in a pure rolling motion between the bearing race 8 and the screw thread, so reducing wearing. The invention may be incorporated in a machine tool, for the movement of a carriage. The lateral shifting of the bearing can also take up any free play between screw and nut.
Patent GB-299193-A (GB)
Title: Improvements in or relating to photogravure printing machines
IPC: B41F31/28
Filed: 1927-10-29
Abstract: 299,193. Greaves, W. Oct. 29, 1927. Inking-apparatus.-In a rotary photogravure printing-machine, the printing-plate is inked directly by a spray, and to prevent ink from passing into the gap 4 in the printing-cylinder 2, the spray is cut off automatically as the gap passes the spray pipe 9. This pipe is supplied with ink by a, pump 6 from a reservoir 5 by pipes 7, 8 fitted with a control valve 19, and the spray is delivered from pipe 9 by a slot 10 of about the width of the printing-plate. The spray is cut off as required by a wedge-shaped bar 11 mounted at each end in arms 13 moving in guides 12 and controlled by springs which normally maintain the valve 11 open. To close the valve 11, a cam 12 on the shaft of cylinder 2 moves other spring-mounted arms 14 radially, and these depress the arms 13, and thus close the valve.
Patent GB-392437-A (GB)
Title: Improvements in strainers for use in discharge openings
IPC: E03C1/264
Filed: 1932-10-15
Abstract: 392,437. Strainers. ALBERS, H. C., 50, Nieuwe Spiegelstraat, Amsterdam. Oct. 15, 1932, No. 28870. [Classes 26, 33, and 46.] A strainer for use in rain-pipes, the outlets of wash basins, laundry tubs and sinks, and other waste devices, has a hinged or other detachably connected bottom 4, which may be perforated. and walls formed of spaced strips 1. In a modification, the walls are formed of metal plate provided with slots.
Patent GB-1073175-A (GB)
Title: Filamentary material
IPC: D01F6/66
Filed: 1964-07-14
Abstract: 1,073,175. Artificial filaments. CELANESE CORPORATION OF AMERICA. July 14, 1964 [July 24, 1963; Jan. 31, 1964], No. 28909/64. Heading B5B. Elastic filaments are made from a polymer consisting of oxymethylene groups interspersed with groups having carbon-to-carbon single bonds by melt-spinning at 190-220‹ C., with a draw-down ratio of 25 : 1 to 350 : 1 at a shear rate of at least 250 seconds<SP>-1</SP>, the filaments then being cold-drawn at a ratio of less than 3 : 1. A multi-orifice spinneret may be used, and the quench medium may be air or inert gas, e.g. steam, nitrogen or argon at 21-140‹ C. The filaments may be subsequently heat-treated in hot water or steam at 90-140‹ C. for 1-30 minutes to increase elasticity. Examples describe the spinning of trioxane/ethylene oxide copolymer into air. The resulting filaments can be stretched by at least 50% of their normal straight length, and, at 50% stretch, have an elastic recovery of 70-92% at zero recovery time at 21‹ C. The elastic recovery may be 56% at 250% stretch at 2 minutes recovery time.
Patent GB-391178-A (GB)
Title: Improved treatments for artificial filaments and like products
IPC: D01F2/28
Filed: 1931-10-19
Abstract: The stretching of artificial threads, ribbons, &c. containing cellulose acetate or other organic derivative of cellulose is assisted by treatment with esters or ether-esters of glycols, for example with an aqueous solution of methyl glycol monoacetate. Other solvents or swelling agents for the cellulose derivative may also be present.  The materials may be stretched when in the form of banks, or while travelling from point to point, as from bobbin to bobbin or from a spinning machine to a winding apparatus, or as a warp proceeding from beam to beam.  The stretching may be local as by the local application of the solvent.  Specifications 277,089, 323,790, [both in Class 2 (ii), Cellulose &c.], 359,971, 370,430, and 391,179 are referred to.
Patent GB-472451-A (GB)
Title: Device for alternatively laying on and disengaging the threads from continuously-rotating stretching devices in spool spinning machines for artificial silk
IPC: B65H67/04
Filed: 1936-10-26
Abstract: <PICT:0472451/IV/1> <PICT:0472451/IV/2> A device for spinning and stretching artificial silk comprises a p  drawing roller 10 and a winding member 16, 29 or 30 and guide rollers, rods, or the like 20, interposed between the drawing-roller and winding member, which are pivotable and adjustable in relation to the drawing roller in such a manner that in one position the threads coming from the spinning jet run direct to the winding member while in the other position they are passed in contact with the drawing roller on their way to the winding member.  The device is particularly advantageous in spinning apparatus provided with automatic change for the spools or other winding member.  In the device shown in Fig. 1, the guide roller 20 is mounted on an arm 18 which is pivoted on the axis of the drawing roller 10.  The alternative positions of the arm 18 and guide roller 20 are shown in full and broken lines, respectively.  Fig. 7 shows a spool spinning machine with automatic spool change, the spools 29 and 30 being mounted on rotary carriers 28.  The guide rollers 20 are pivotable and moved about the axes 31 by means of levers 18 and 32 coupled to the operating device 33.  At the beginning of the spinning operation and during the changing of the spools, the guide roller is positioned so that the thread runs past the drawing roller without touching it.  Directly the threads are taken up by the spools, the guide rollers are changed to their alternative position, so that the threads contact with the drawing roller and are thereby stretched.
Patent GB-1140105-A (GB)
Title: Improvements in and relating to the production of esters
Inventor: HAYDEN PERCY
IPC: C07C69/12
Filed: 1966-06-29
Abstract: 1,140,105. Glyceryl esters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 13 June, 1967 [29 June, 1966], No. 29225/66. Addition to 987,278. Heading C2C. In the preparation of esters by reacting a compound R.CH=CH.CH(R<SP>1</SP>)X in which R is hydrogen or alkyl, R<SP>1</SP> is hydrogen or alkyl and X is chloride or acyloxy with a solution containing a carboxylic acid, a palladous salt, a cupric salt, a metal halide, other than fluoride and less than 25% by weight of water, the halide ion concentration is at least 1À5 gm. ions per litre. A range of 1À5 to 3 gram ions per litre is preferred and the metal halide may be an alkali metal, cupric, ferric or magnesium chloride. Examples describe the preparation of glyceryl di- and triacetates.
Patent GB-465029-A (GB)
Title: Improvements in change speed chain gearing for bicycles and the like
IPC: B62M9/126
Filed: 1936-10-28
Abstract: 465,029. Change speed driving - mechanism for cycles. SIMON, V. Oct. 28, 1936, No. 29373. Convention date, Nov. 5, 1935. [Class 136 (ii)] [Also in Group XXIV] In change-speed chain gearing for bicycles &c. of the type comprising two or more sprockets a, b, c and a chain-shifting guide sprocket or roller d with a pivoted chain tensioning lever e provided with a sprocket or roller f, the tensioning of the chain h is limited in each gear position by means of spaced abutments k, l, m on a lever extension arm i, j, coacting with a pawl n pivoted at o to a fixed part of the cycle. The positions of the spaced abutments and of the pawl respectively may be reversed. During gear-changing, the pawl n is adapted to ride over the appropriate abutment and then move back to the stopped position.
Patent GB-648442-A (GB)
Title: Improvements in or relating to tipping vehicles
IPC: B60P1/28
Filed: 1948-11-15
Abstract: 648,442. Tipping vehicles. ALLEY TRAILERS, Ltd., and ALLEY, S. E. Nov. 15, 1948, No. 29592. Addition to 599,459. [Class 108 (i)] A vehicle having a central tubular longitudinal 13 to the upper side of which is secured a number of transverse members 14 having their vertical webs cut away to straddle the longitudinal 13 as described in the parent Specification, is adapted for tipping by mounting it on a chassis 10 having a hydraulic jack 34 which bears, at its upper end, against the longitudinal 13. To the underside of the vehicle body two arch-members 19, 20 are secured each having two downwardly-directed U- shaped members with parallel cheeks 24 and an arcuate cross-section metal strip 25 secured between them. The strips 25 support the weight of the body on the chassis supports 28 and are retained in position thereon by removable pins 29 provided with locking means 31, 32. Removal of appropriate pairs of pins 29 allows threeway tipping of the body.
Patent GB-977688-A (GB)
Title: Brightness indicating devices for photographic and cinematographic cameras
IPC: G03B17/08
Filed: 1963-07-26
Abstract: 977,688. Photo-electric brightness indicators. EASTMAN KODAK CO. July 26, 1963 [July 30, 1962], No. 29669/63. Addition to 941,697. Heading G1A. [Also in Divisions G2 and G4] A brightness indicating device comprises a photo-electric cell receiving light from a predetermined angular field and a measuring instrument energized by the photo-cell and having a member movable in a first direction in response to the energization and biased in the opposite direction, the member completing a circuit including a battery, an indicator lamp and the measuring instrument when the field brightness is below a predetermined level, the current in said circuit lighting the lamp and deflecting the member in the first direction. The photo-cell 10 energizes the meter 12 in accordance with illumination and when the latter is below the predetermined level, the pointer 20 meets contact 17 to energize a neon indicator lamp 18 and the meter 12 sufficiently to break the contact 17, 20. The lamp thus flashes so long as the illumination is below the predetermined level, the frequency of flash being inversely dependent on the illumination. The indicating device may be included in a cinematograph camera, in which case the angular field corresponds to that of the camera, the indication is visible in the viewfinder and a switch 16, closed by the camera release, is provided.