baber/WOPTO huggingface dataset:
Patent GB-1353756-A (GB)
Title: Apparatus and method for producing a nonwoven fabric
IPC: D04H1/70
Filed: 1971-04-19
Abstract: 1353756 Non-woven fabrics JOHNSON & JOHNSON 19 April 1971 [24 March 1970 (9)] 25161/71 Headings D1R and D2B A non-woven staple fibre web is formed with areas of high and low fibre density by directing a fluid onto the web while it lies on a support member comprising a continuous impermeable part surrounding sieve-like permeable areas. An apertured member may be located between the fluid directing means and the web. As shown, Fig. 1, fibre web 43 is passed between rotating support member or drum 15 and a running apertured member or belt 30, water being sprayed from nozzles 29 through the belt, web and drum to rearrange the web fibres. Vacuum box 45 assists the dewatering and rearranging of the fibres. Drum 15 Fig. 2, is formed by continuous solid part 20 surrounding sieve parts 19, and belt 30 has apertures 31. Sieve parts 19 and apertures 31 may be of any shape and may lie in any pattern. Alternatively, Fig. 25, fibre web 128 is fed between wet-out rollers 120, 121 which control the webs moisture content to 150 to 200 p.b.w. The web is then carried on belt 130 beneath water jets 137 to rearrange the fibres. Belt 130 has sieve parts as shown in Figure 2. Each sieve part may have a width of at least 237 microns, and preferably at least 475 microns, and an area of at least three times, and preferably greater than four times, the area of an aperture in the apertured member. The sieve parts may form at least 20%, and preferably at least 30% of the total area of the support member. The apertures may have a width of at least 95 microns, and a patch at least three times their width. The smallest width of the solid part of the supporting member may be at least equal to the width of the apertures.  The sieve parts may comprise, Fig. 5, a woven screen e.g. of wire nylon or glass fibre, in which strands 51 are straight and strands 52 weave over and under strands 51. The bends 53 in woven strands 52 form troughs extending parallel to strands 51, and troughs extending parallel to strands 52. The depth of each trough is preferably at least 28.5 microns. A non-woven web produced by the apparatus of Figure 1 comprises dense fibre areas in a pattern corresponding to that of the drum sieve parts 19 and interconnected by aligned fibres in a pattern corresponding to that of the solid drum part 20. A pattern of bundled fibres corresponding to the pattern of apertures 31 in belt 30 subdivides the dense fibre areas. When the sieve parts are formed by the screen shown in Figure 5, the troughs defined by the strand bends produce fibre bundles which sub-divide areas of low fibre density within the dense fibre areas. The starting material comprises a carded or an air-laid web, or a web formed by liquid deposition. The fibres may be natural, mineral or synthetic and are preferably 0.25 to 2.5 inches long. The redistribution of webs of viscose rayon fibres is exemplified.
Patent GB-172118-A (GB)
Title: Improvements in or relating to integrating apparatus for measuring the flow of liquids and the like
IPC: G01F15/07
Filed: 1920-09-01
Abstract: 172,118. Lassen, J. J., and Bailey, A. P. P. Sept. 1, 1920. Integrating.-The total quantity of a liquid or the like passing out of a vessel provided with a V-shaped outlet is measured by a counter driven through a pawl and ratchet wheel from a clock the effect of which is varied by the interposition of a shield between the pawl and ratchet, such shield being moved by a member controlled by a float through well-known mechanism which ensures the member moving in a straight line law in relation to the rate of flow of the liquid. Two ratchet-wheels C, C' mounted on a spindle Dare driven by pawls E, E<1> on arms pivoted on the shaft D and connected by rods F, F<1> to cranks G, G<1> on a spindle of a clock A so that one wheel is being driven while the pawl slips over the other wheel. The spindle D drives the first wheel H of a counter B through bevel-gear J. The wheels C, C' are partly surrounded by a shield pivoted to the spindle D the two parts K, K<1> of which are connected by a bridge-piece L. A spring O causes the shield to engage the upper arm N of a two-arm lever N, N' pivoted at R. A rod U actuated by a float for instance is connected through a parallel linkage with a part S guided on a rod T, a pin V on the linkage working on a cam-slot W, the whole arrangement being a well-known device for securing that the movement of the part S follows a straight-line law in accordance with the rate of flow of the fluid measured. The part S is connected by a pin and slot to the arm N' of the lever N, N' and the shield is thus moved in accordance with the rate of flow.
Patent GB-1401665-A (GB)
Title: Plants
IPC: A01H4/00
Filed: 1972-05-30
Abstract: 1401665 Differentiation of plant cells BRITISH PETROLEUM CO Ltd 22 May 1973 [30 May 1972] 25256/72 Heading C6F A method of producing plants comprises growing undifferentiated plant tissue in liquid suspension in a first growth medium containing nutrients and a sugar (sucrose, glucose or coconut milk) in the presence of light, removing undifferentiated plant tissue from the growing tissue, transferring the removed tissue to a second medium and inducing differentiation or neo-embryo formation in the transferred tissue or allowing the differentiation or neo-embryo formation to take place spontaneously, then removing the differentiated tissue formed and transferring it to a third medium containing substantially no sugar, where growth of plants from the differentiated tissue is started, and transferring the growing plants to a substrate where growth is continued. In the first growth medium the concentration of sugar is 2-5 g/l and the light intensity 2600-10,000 lux. A liquid suspension of tissue obtained from the first medium is transferred to the second medium on agar and the amounts or relative proportions of auxins and cytokinens (specified) are adjusted, if necessary, to induce differentiation and neo-embryo formation. The third medium has a porous support e.g. of filter paper and the final media are vermiculite in hydroponic solution and soil. Preferably, the atmosphere in which the undifferentiated tissue and the plants are grown is enriched in carbon dioxide. Examples are directed to the cultivation of tissue from carrot, Psoralea bituminosa and lettuce, respectively.
Patent GB-759578-A (GB)
Title: Improvements in and relating to devices for the dressing of abrasive gear hobs
IPC: B24B53/08
Filed: 1954-08-31
Abstract: 759,578. Dressing abrasive gear hobs. REISHAUER-WERKZEUGE AKT.-GES. Aug. 31, 1954 [Aug. 31, 1953], No. 25257/54. Class 60 A device for dressing an abrasive gear hob 3 may be arranged to dress the flanks of the hob either to a straight contour or to a contour which deviates over the whole or part of its length from a straight line. The hob 3 is of single-start righthand thread and is rotated at reduced speed by a motor 54 during the dressing operation while the dressing device is traversed along the hob by change gears 10 and a lead screw 11. After each traverse, the device is withdrawn radially, returned at high speed to the left hand end of the hob and advanced radially in readiness for the next traverse. On each traverse the diamonds 37, 37<SP>1</SP>, which are carried by holders 36, 36<SP>1</SP>, are advanced towards the hob axis by means of screws 42 so as to dress the flanks progressively. Each holder 36 is mounted in a head 26 which is angularly adjusted by inserting a block gauge between a pin 28 and a face 262 forming part of the head and lying radial to a pin 27 about which the angular adjustment is effected. The angle to which the head is adjusted determines the pressure angle of the gears to be ground. Nuts 29<SP>1</SP>. 30<SP>1</SP> lock the head after adjustment. During adjustment by the screw 42, the holder 36 is guided by a sleeve 40 mounted on the pin 27 and an eccentric 35 the position of which is determined by a follower 341 loaded by a spring 48. A second spring 39 keeps the holder 36 in contact with its guiding surfaces and the screw 42. If the follower 341 bears against the side 361 of the holder 36, no movement of the eccentric 35 takes place and the diamond 37 cuts a straight flank as it is advanced by the screw 42. If however a template 45 is mounted on the holder 36 to co-operate with the follower 341, the flank contour deviates from a straight line and the hob produced will generate a modified involute on the gear teeth. The template 45 may be mounted so that the follower engages the side 361 of the holder 36 while the diamond is in engagement with the centre of the hob flank so that only the root and the crest of the latter are modified. The template may also be designed so that only the root or the crest is modified and the two templates 45, 45' may be of different shapes or only one may be employed when asymmetrical teeth are to be ground. The head 26 is adapted to be adjusted towards or away from the head 26<SP>1</SP> by a screw 24 and both heads are mounted on a base member 20 secured to a longitudinally displaceable slide 5 by a clamp 6. This slide 5 is mounted on a slide 9 which may be adjusted radially of the hob by a screw 13.
Patent GB-1120504-A (GB)
Title: Control device for gas burners
IPC: F24D5/08
Filed: 1966-06-07
Abstract: 1,120,504. Controlling burners. ROBERTS-GORDON APPLIANCE CORP. 7 June, 1966 [28 Feb., 1966], No. 25277/66. Heading F4T. A control device 11 for the supply of air and gas to a gas burner of a heater system includes a housing or cavity 15 to which air is admitted through an air inlet chamber 16 provided with a control valve 19, the air passing through a cleaner 17, and a gas pipe 22 supplies a main burner 25 and a pilot burner 48, the gas flow to the main burner passing through a valve 29 having an element 30 mounted on a diaphragm 31 acted upon by the pressure of the air in chamber 15. Another valve 37 downstream of valve 29 is operated electrically by a thermostat located in the space to be heated and the pipe has a fixed restriction at 40, gas being discharged into a mixing duct 43 opening into the burner 25. Air enters the duct 43 through an orifice 44 adjustable by a valve plate 45 whose position is fixed to give the correct amount of air. A branch pipe 27 from the pipe 22 conducts fuel to the pilot burner 48 via a valve 49, similar to valve 29, and an electrically controlled valve 56 to a mixing duct 61 terminating in a space 61a through which an ignition spark plug extends, the plug having apertures (75) through which the combustible mixture can flow to the electrodes.
Patent GB-258435-A (GB)
Title: Improvements in and relating to sockets for mounting windscreens and the like
IPC: B60J1/08
Filed: 1925-10-12
Abstract: 258,435. Weathershields, Ltd., and Morgan, R. E. Oct. 12, 1925. Wind and like screens.-A socket for mounting wind-screens on vehicles comprises a member a having an eccentrically bored hole c into which fits a stem from the wind-screen when the socket is mounted in the side rail or like part of the vehicle. The outside of the socket may be screwthreaded in which case it is screwed into a metal tubular member in the side rails or into the side rail direct. A hexagon b or like means is provided at the top of the socket for rotational and adjustment purposes.
Patent GB-822994-A (GB)
Title: Improved self-sealing drive shaft
Inventor: WALKER THOMAS HENRY
IPC: F04D29/12
Filed: 1957-08-12
Abstract: 822,994. Stuffing-box substitutes. BRITISH THOMSON-HOUSTON CO. Ltd. July 15, 1958 [Aug. 12, 1957], No. 25386/57. Class 122 (5). Sealing means for a compressor or other shaft 16 passing through an aperture 17 in a casing 11 into a case 12 removably secured to the casing comprises a cylindrical flange 21 secured to the casing and projecting inwardly from the aperture and a sealing plate 22 that is slidably mounted within the flange 21 and is normally held clear of a collar 23 on the shaft by an extension 25 on the case 12 but, when the case is removed from the casing, is urged into contact with the collar 23 by a spring 24 to seal the interior of the casing.
Patent GB-634645-A (GB)
Title: Improvements in or relating to anthraquinone acid dyestuffs
IPC: C09B1/26
Filed: 1946-08-26
Abstract: Dyes are made by heating 2.4-dichloro-1-aminoanthraquinone with a primary or secondary aromatic or aliphatic amine, if desired in presence of copper or a copper salt or of an acid binding agent, the product being sulphonated before or after purification.  The anthraquinone body may be prepared according to Specification 634,646.  Examples describe the use of p-toluidine and aniline. Specification 19531/99, [Class 2], also is referred to
Patent GB-925780-A (GB)
Title: Gum breaking device
IPC: A23G4/04
Filed: 1961-07-14
Abstract: 925,780. Breaking chewing gum. PACKAGE MACHINERY CO. July 14, 1961 [Oct. 7, 1960], No. 25552/61. Class 49. In a machine for continuously breaking a sconed slab of gum into strips and feeding the strips to a continuously operating packaging machine, a slab of gum S is yieldingly urged by a slipping conveyer along a platform 32 and over fingers 34 extending therefrom towards the bite between interdigitated toothed breaker wheels 10, 12 gear-rotated at constant speed. Here a tooth (having a small land at its peak) on the lower wheel supports the slab just behind a score line and a tooth on the upper wheel strikes the slab just ahead of a score line, the broken off stick of gum, and successive sticks being separated and carried ahead of the wheels on to and up fingers 40 extending from a discharge platform 38 by means of pushers 62 on guided chains 60. The shaft 14 of the upper wheel 10 is journalled in a frame 18 which for cleaning, repair and access can be swung upwardly about a pivot-pin, and the frame carries slab hold-down plates 41, 46 having fingers 42, 48 respectively, these fingers and the fingers 34, 40 projecting into annular grooves (Fig. 2, not shown), in the wheels 12, 10. The pitch of the teeth on each wheel is slightly less than the distance between the slab scone lines and the trailing and leading faces respectively of the upper and lower wheels, respectively, are radially disposed.
Patent GB-705473-A (GB)
Title: Improvements in folding shutter slats and folding shutters made therefrom
IPC: E06B9/06
Filed: 1948-10-01
Abstract: 705,473. Collapsible gates. CURTISA. Oct. 1, 1948 [April 23, 1948], No. 25581/48. Class 45. [Also in Group X] A horizontally sliding shutter comprises a number of slats A hingedly connected at their edges by curled portions B and B' as shown in Fig. 2, the joints between the slats being provided at their upper end alternately with rollers R, Fig. 3a, and a guiding bar, the arrangement being such that when the shutter is opened the guiding bars strike a suitably positioned abutment and the slats assume the folded position shown in Fig. 2. The guiding of the slats to the required position is assisted by bolts P and P' which are provided at the lower end of the joints between the slats and engage in a track S ; the bolts P' are shorter than the bolts P and capable of entry into a track G which is raised above the level of the track S, the longer bolts P, however, are unable to enter the raised track and are deflected. The slats may be solid or made of lattice or grid-like members.
Patent GB-280687-A (GB)
Title: Improvements in taps or cocks
IPC: B67D3/00
Filed: 1926-10-14
Abstract: 280,687. Duckworth, J. Oct. 14, 1926. Valves actuated indirectly.-In a tap or cock embodying a valve adapted to be opened by pressing a. bottle or other receptacle against an extension thereof, a spring-loaded valve member c and the casing b each comprise cylindrical and conical parts, the cylindrical part of the valve member being hollow and provided with ports located beneath the conical part. The cylindrical valve part terminates in a collar, cap or fitting which may be detachable and slotted &c. to allow escape of air. The valve spring may be located between the valve, and a screwed cover plate f or, as shown, springs e may be disposed externally between casing lugs g and a bridle h, secured to the hollow valve stem d. The bottle or receptacle may be carried by a sling &c. pivoted &c. to the casing. Supplementary means for opening the valve may be provided such as a lever or, as shown in Fig. 3, a screwed rod i engaging a nut member secured to the valve stem d. A filter may be fitted in the valvecasing.
Patent GB-1450376-A (GB)
Title: Copper c 'ted composite powders and method of production thereof
IPC: C23C4/12
Filed: 1975-06-17
Abstract: 1450376 Coating particles with Cu SHERRITT GORDON MINES Ltd 17 June 1975 [12 July 1974] 25693/75 Heading C7F Particles of e.g. Ag, Pt, Au or Pb or calcium fluoride, molybdenum disulphide, cobalt oxide nitrides, borides, diamonds, carbon, silica, alumina, carbides of Cr, Ti or W or diatamaceous earth are coated with copper by first coating with nickel by gas (H2) reduction of an ammonium salt solution, and then displacing the Ni with Cu in a solution (pH not higher than 7). The displacement reaction may take place in a hydrogen atmosphere of 50 to 500 p.s.i.g.
Patent GB-362356-A (GB)
Title: Improved means for removing spindles and cups from bicycle bearings and the like
IPC: B25B27/00
Filed: 1930-08-28
Abstract: 362,356. Detaching cycle axles &c. MUNRO, R. B., High Street, Kingussie, Inverness-shire. Aug. 28, 1930, No. 25727. [Class 136 (ii).] A device for removing spindles and cups from bicycle &c. bearings comprises a lever adapted to be secured temporarily to the spindle and provided with adjustable means for engaging directly or indirectly with one of the end cups of the bearing so as to clamp the spindle and cup together for rotation as one with the lever. As shown applied to a crank bracket bearing, the device comprises an annular plate 19 adapted to be keyed to one of the end cups 14, as by a ball 23 engaging a groove in the plate and one of the usual tool holes 18 in the cup, recesses 22 in the back of the plate being engaged by thumb-screws 29 passing through a lever 24, which is locked to the spindle 15 by means of a removable tapered pin 27 engaging a flat portion 28 on the spindle. On actuating the lever 24, the cup 14 is unscrewed from the tubular casing 10 and withdrawn together with the spindle 15 and balls 17.
Patent GB-205962-A (GB)
Title: Improvements in and connected with carburettors suitable for internal combustion engines
IPC: F02M17/14
Filed: 1922-09-23
Abstract: 205,962. Grafton, W. F. Sept. 23, 1922. Spray carburettors. -A suction-actuated valve H of light construction works in conjunction with an adjustable choke tube C and carries a needle valve K with slotted portion K<1> to control the fuel flow through the tube E, the fuel valve being pressed to its seat, to cut off the fuel supply, by the weight of the valve H when suction ceases. No float chamber is employed and alternative fuels may be supplied through a three-way cock M. The fuel is sprayed into the main air current through an annular slit or a number of orifices J<1> in the valve head, and the proportion of fuel to air may be varied by admitting a variable quantity of air to the interior of the valve head through an orifice controlled by a needle valve L. This air passes upwardly in a space Z between a tube S and the exterior of the fuel tube E. At the higher values of the suction. the lifting of the valve H is resisted by a spring R which contacts with an adjustable stop P and rests on an adjustable nut Q at the lower end of the valve stem. The choke tube C can be adjusted axially by a bolt D thereon being moved in a cam slot X in the wall of the casing A.
Patent GB-924431-A (GB)
Title: Improvements in or relating to devices for fastening electrical leads
Inventor: SPENCER HERBERT JAMES CALKIN
IPC: H01R13/58
Filed: 1958-08-11
Abstract: 924,431. Strain-taking devices for flexible leads. HER MAJESTY'S POSTMASTER GENERAL. Aug. 11, 1959 [Aug. 11, 1958], No. 25782/58. Class 38 (1). An insulated electric conductor cord or lead is anchored to an appliance, e.g. a telephone hand set, by providing the cord with a resilient sleeve having one or more radial projections which detachably engage a portion of the appliance. As shown, a resilient sleeve 1, e.g. of rubber or plastics, with a non-circular, preferably square portion 5 is secured round a lead 2 by a metal band 7 furnished with lugs 8 which enter recesses in a boss 4 on an appliance. To insert the sleeve further into the boss 4 the sleeve is twisted to bring the square portion 5 into register with a square recess 6 in the boss 4. On further axial movement the lugs 8 emerge from the recesses 9, whereupon, due to the torsion in the sleeve, the band twists and the lugs engage locking projections 10, which may be chamfered.
Patent GB-680448-A (GB)
Title: Improvements in double acting hot-gas reciprocating engines
IPC: F02G1/044
Filed: 1949-10-07
Abstract: 680,448. Hot gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 7, 1949 [Oct. 12, 1948], No. 25784/49. Class 7 (i). Two groups of cylinders are provided the pistons of each group actuating a common crank of a crank-shaft provided separately for each group and the cranks jointly transmitting power given off to them to a main shaft. In the plan view shown in the Figure pistons 5, 6 in cylinders 1, 2 drive a crank-shaft 9 and pistons 7, 8 in cylinders 3, 4 drive a crank-shaft 10. The engine includes heaters W, regenerators R and coolers K which are connected to the working spaces of the cylinders as shown. Bevel wheels 15, 16 on the shafts 9. 10 respectively co-operate with bevel wheels 19, 20 on a driven shaft 17 to drive it in one or other direction. The bevel wheels 19, 20 cooperate with the shaft 17 according to the position of the coupling means 21, 22. The Specification as open to inspection under Sect. 91, states that the two cylinders of a group may be arranged one in front of the other, side by side, or one above the other. If the crank shafts are parallel to one another two gear wheels secured to the main shaft are generally required to co-operate with the gear wheel of each crank shaft. This subject-matter does not appear in the Specification as accepted.
Patent GB-1215119-A (GB)
Title: Light analyser
IPC: G03B27/73
Filed: 1969-08-08
Abstract: 1,215,119. Light analysers. PAKO CORP. Aug.8, 1969 [Jan.10, 1969], No.26015/70. Divided out of 1, 215, 118. Heading G2A. The subject matter of this invention is the same as that of Specification 1, 215,118, but the claims relate solely to the light analyser A, which is stated as being for a photographic printer.