baber/WOPTO huggingface dataset:
Patent GB-216027-A (GB)
Title: Machine for applying reinforcing fibres to papers
IPC: D21F11/00
Filed: 1923-08-29
Abstract: 216,027. Howard, C. H. Aug. 29, 1923. Strengthening with fibres.-In applying reinforcing fibres to papers both longitudinally and transversely, unspun rovings a, Fig. 1, are passed around guide rolls 12 to crimping rolls 14, 15, around a board 16 and beneath guide rolls 27 to an endless carrier 18 having combs 19 the teeth of which pass between the fibres. The carrier 18 travels at a speed slightly greater than that of the filaments and draws them out, forming a layer having the thickness of a single filament. This layer is secured to a sheet of paper b, Fig. 2, coated with asphalt at 31. A second layer d is similarly produced and cut off by a cutter 63, Fig. 6, in lengths corresponding with the width of the paper b and delivered by a conveyer 56 to the underside of an endless carrier 61, comprising transverse comb bars 70 the teeth of which pass through perforations in metal strips 76. This carrier 61 conveys the filaments to a position above the paper b and transversely thereof, the strips 76 being maintained in a raised position by projections 79, Fig. 10, thereon engaging the ribs 115 of rotatable members 114. When a length of filaments is brought into a position across the paper, trip mechanism, comprising gears 121, 122, Fig. 11, is operated to rotate members 114, the strips 76 fall and doff the filaments from the teeth 72 and deposit them on the paper. A second layer of paper f, Fig. 2, coated with asphalt at 110 is superposed at 105, the mass compressed between rolls 105, 106, and then passed out of the machine. Width gauges are provided for the sheet of filaments. To vary t'he apparatus to suit different widths of paper, the member 114 is made with sections 114a, 114b. which may be adapted to rotate or to remain stationary, in the latter case forming extensions of the guide bars 78. The speed of rotation of the knife 63 is varied to cut different lengths of filaments to suit the variations in the width of paper b supplied to the machine, and, as satisfactory cutting of the filaments requires that the knife and filament sheet shall travel at the same speed during the cutting operation, the knife 63 is driven through epicyclic gearing as shown in Fig. 13, the casing 130 being reciprocated by adjustable crank mechanism to increase or decrease the speed of rotation of the knife during the actual cutting as required. The filaments are supplied to the machine in roving or sliver form, and those of hemp, sisal flax, ramie and the like are preferred.
Patent GB-463723-A (GB)
Title: Improvements in or relating to the transmission of power by co-operating hydraulic and mechanical gears
IPC: F16H47/08
Filed: 1935-08-01
Abstract: 463,723. Variable - speed gearing. SWAN, J. G. Aug. 1, 1935, No. 21879. [Class 80 (ii)] In an hydraulic gear of the Fottinger type comprising a primary or pump element 55, a secondary or turbine element 56, and a reaction element 57, in combination with a threesection gear train comprising an annulus 71, a sun-wheel 73, and planet system 72, 74, the primary or pump element 55 of the hydraulic gear is secured to or is integral with the casing 52, 53 which is driven from the power imput member 51. Reverse rotation of the reaction element 57 is prevented by a freewheel device 62, 64 and it is further adapted by means of a centrifugal clutch device 68, 69, 66 to be clutched to the sun-wheel 73 of the epicyclic gear train. The planet system 72, 74 is secured to the output shaft 81 and the annulus 71 is driven by the secondary or turbine element of the hydraulic gear. Reverse rotation of the sun 73 can be prevented by a brake member 78 through a freewheel connection 79 to allow forward rotation. In operation, when the gear is used in a vehicle transmission no torque is transmitted when the brake member 78 and the sun 73 is free to rotate in a reverse direction. On holding the brake member 78, the output shaft 81 is driven from the planet system 72, 74 from the annulus, which is connected to the secondary element 56 of the hydraulic gear, at a reduced speed, the reverse rotation of the reaction element 57 being prevented by the oneway brake 62-64. As the speed of the output shaft 81 rises, the planet carrier 72 is clutched to the casing 80 carrying the annulus 71 by means of centrifugal friction shoes carried by the planet spider 72, for the epicyclic gear to rotate solid giving an increase of the speed ratio. On further increase of speed of the shaft 81, the centrifugal clutch 69 clutches the sun 73 to the reaction member 57 of the hydraulic gear, which therefore rotates at the same speed as the secondary element to form with the primary element a simple hydraulic coupling for a further increase of the speed ratio to an approximately direct drive. In a modification, the turbine or secondary element is connected to the sun of the epicyclic train and the reaction element is coupled to a member carrying centrifugal friction shoes for engaging the annulus of the epicyclic train through a manually operable clutch, so that the turbine element will drive at a reduced speed through the epicyclic train until it is desired, and the conditions are suitable, to bring in the higher ratio to be obtained by the reaction element driving the annulus. Specifications 423,745, [Group XXIX], 432,807, 434,204, 446,530, and 449,707, are referred to,
Patent GB-222132-A (GB)
IPC: G01R11/48
Filed: 1924-09-17
Abstract: 222,132. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Sept. 20, 1923, [Convention date]. Special quantities. registering; power meters; polyphase connections for unspecified meters. - The capacity of the bushings or other insulators a is employed for the division of the voltage in measuring the output of a three-phase system u, v, w, a fraction of the voltage between one phase w and earth being combined with the geometrical sum of the currents of the other two phases u, v by means of current transformers e for measuring the effective output, or with the, current, flowing in the phase w for measuring the wattless output.
Patent GB-1140131-A (GB)
Title: Production of 1,4-dicyanobutene-(2)
Inventor: WEITZ HANS-MARTIN
IPC: B01J19/00
Filed: 1966-05-18
Abstract: 1,140,131. 1,4 - Dicyanobutene - (2). BADISCHE ANILIN- & SODA-FABRIK A.G. 18 May, 1966 [19 May, 1965], No. 22063/66. Heading C2C. [Also in Division C1] 1,4 - Dicyanobutene - (2) is obtained by reacting at an elevated temperature 1,2- dibromobutene-(3) and/or 1,4-dibromobutene- (2) with at least the stoichiometric amount of HCN in the presence of a copper salt in an aqueous acid medium at a pH of - 1 to + 3 using a buffer substance which exhibits buffering action in the said pH range as an acid acceptor, the acid acceptor being present in an amount of at least 1 equivalent per mole of dibromobutene, separating the resultant 1,4-dicyanobutene-(2) from the reaction mixture, oxidizing the HBr present in the aqueous solution to elementary Br 2 , separating Br 2  and returning the aqueous solution containing the acid acceptor to the reaction. The reaction may be carried out continuously or batchwise. The acid acceptors specified are alkali metal salts or alkaline earth salts of medium strength acids. The reaction solution may contain catalysts for the reoxidation of the bromine anions. Examples are given for the production of 1,4- dicyanobutene-(2) and an apparatus is described which is suitable for carrying out the continuous process.
Patent GB-944702-A (GB)
Title: Photographic enlarger with exposure measuring device
IPC: G03B27/72
Filed: 1960-06-23
Abstract: 944,702. Photographic enlargers. AGFA A.G. June 23,1960 [June 24, 1959], No. 22090/60. Heading G2A. A semi-transparent mirror in the imagecarrying beam of an enlarger directs light into an optical system including a mirror parallel with the semi-transparent mirror the whole, together with the objective lens, forming an afocal system and being mounted as a single unit movable along the projection axis with respect to the negative stage, light from said unit being directed on to a photo-electric exposure measuring device. As shown in Fig. 2, the unit 6 contains the semi-transparent mirror 10, parallel with it a mirror 12, and the objective 5 which together with lenses 11 and 13 forms an afocal system so that light leaving the unit 6 reflected from mirror 14 carried on the enlarger housing 4 will be focused by lens 15 on screen 16 to form an image having substantially constant magnification independently of movement of unit 6 along the projection axis 43 (by means of handle 7) to vary the magnification between the negative stage 2 and the positive stage 9, the image on 9 being kept in focus by known coupling means. The secondary image on screen 16 is focused by lenses 17 on a system of interference mirrors 19 whereby red, green and blue light respectively is directed towards photomultipliers 20, 21, 22 for photometering purposes. To compensate for the variation of illumination in the image at 9 corresponding to varying degrees of enlargement, movement of the unit 6 can be made to vary the lamp current by means of a rheostat 34 fixed on the housing and a sliding contact 32 carried on the unit. Alternatively, mechanical means including a rack and pinion can be operated by movement of the unit to move a neutral density wedge across the screen 16.
Patent GB-461186-A (GB)
Title: Improvements in speed controlling means for engines, motors and the like
IPC: B66B5/04
Filed: 1935-08-06
Abstract: 461,186. Controlling brakes. SIM. MONDS, A. E., and REUNERT & LENZ. Ltd. Aug. 6, 1935, No. 22162. [Class 103 (i)] [Also in Group XXVI] Means for controlling the speed or deceleration of engines &c. comprises a governor mounted on a driving shaft and driven through a freewheel device and co-operating with a second governor fixed on the same or another shaft in such a way that upon decrease of the speed of the second governor due to retardation of the driving shaft the relative motion that ensues between the weights of the two governors is used for controlling the brakes of the engine &c. The driving disc 16 of a centrifugal governor A is driven from the shaft 1 through a ratchet or freewheel device and the driving disc 6 of a governor B is secured to the shaft. The weight-carrying links 8, 18 of the governors are connected respectively to collars 10, 20 which engage non-rotatable anti-friction bearings 14, 24 slidable on the shaft. Collars 26, 27 secured to these bearings are connected by links 33, 34 to a part slidable on a lever 30 pivoted at 29. The governor A may be provided with fan blades 43 or other auxiliary retarding means. If the engine and shaft 1 are running at uniform speed, the collars 26, 27 are equidistant from a stop 37 and the lever is vertical as shown, but if the engine is retarded the collar 27 of governor A lags relatively to the collar 26 of governor B in its movement toward the stop 37 since the governor A is retarded only by the fan blades 43. The consequent displacement of the lever 30 may be used to control a relay or the valve of a servo-motor having a " follow-up " action whereby the action of a brake on the engine &c. is moderated. The retarding device for the governor A may, instead of the blades 43, be a band brake, an, eddy-current brake or an oil pump delivering through a spring-loaded relief valve or through a valve providing a restricted passage controlled by the lever 30, so that the energy absorbed is proportional to the displacement of the lever. To prevent the device from affecting the brakes if it is deranged, in which case the lever 30 assumes an inclined position, a pendulum 39 may be hung on the lever as shown, and may have a hole 42 which is entered by a pin on the engine brake lever when this lever is moved to apply the brakes, only if the lever 30 is vertical, the pin for instance, closing the circuit of a relay by which the device is rendered operative.
Patent GB-258724-A (GB)
Title: Improved process for the electro-deposition of chromium
IPC: C25D3/04
Filed: 1925-09-04
Abstract: 258,724. Long, C L., Macnaughtan, D. J, and Gardam. G. E. Sept. 4, 1925. Chromium, depositing.-The electrolyte is of chromic acid to which is added a small proportion, not exceeding 3 per cent by weight, of copper, zinc, or nickel, or a combination of these metals. The additional metal is introduced by chemical or by anodic solution, or as a salt, oxide or carbonate; it is not deposited during electrolysis. A suitable electrolyte consists of 30 per cent chromic acid, ¢-2 per cent chromium sulphate, “-2 per cent copper (introduced as carbonate), the balance being distilled water. The current density may be 200 amps. per sq. ft. and the temperature less than 20‹ C. Chromic chloride may be used instead of chromium sulphate. According to the Provisional Specification, copper, zinc, and nickel may be replaced by other common metals.
Patent GB-197594-A (GB)
Title: Improvements in or relating to folding chairs
IPC: A47D1/02
Filed: 1922-08-16
Abstract: 197,594. Anderson, A. E., (" X " Chair Patents Co.). Aug. 16, 1922. Folding nursery seats.-A folding chair of the nursery type comprises in combination an X- frame 10, 20, a folding seat 31, and a tray 50 pivoted to the top of the arms 11, 12 of the frame 10, and provided with arms 51, 52 supported at the rear by the arms 21, 22 of the frame 20. The arms 51, 52 carry a cross-bar 53 which has its front edge undercut to engage behind the bars 21, 22 when the seat is set up for use. A back-rest. 41, pivoted at 42, is supported by a bar 54 carried by the arms of the tray, the frame 40 of the backrest being recessed at 55 to engage the bar. A hook 56 may be provided to lock the back-rest in position, and a foot-rest may be fitted to the frame 20.
Patent GB-1281796-A (GB)
Title: Process for the preparation of scouring powders
Inventor: SYROVATKA RUDOLF
IPC: C11D3/14
Filed: 1971-04-19
Abstract: 1281796 Scouring powder UNILEVER Ltd 19 April 1971 [24 Feb 1970] 22349/71 Heading C5D A scouring powder including a bleach and a colouring agent to indicate whether the bleach is still active is made by spraying an aqueous dispersion of the colouring agent on to a particulate water-soluble inorganic hydrate-forming salt and mixing the coloured product with an abrasive and a bleach. The dye may be naphthalene green or acid green. It may be dissolved in water, heated to 50-90‹ C. and then sprayed whilst still hot. The inorganic salt may be an alkali metal carbonate, sodium orthophosphate, disodium hydrogen phosphate or sodium tripolyphosphate. The sprayed inorganic salt may be ground to less than 0À2 mm. particle size before mixing with the bleach and abrasive. The bleach may be trichlorooyanuric acid. The abrasive may be calcite or felspar. The composition may also include a surfactant, e.g. a sodium alkyl benzene sulphonate, a perfume and another dye.
Patent GB-939814-A (GB)
Title: Beverage cartridge assembly
IPC: B65D85/804
Filed: 1959-10-07
Abstract: 939,814. Infusion packages. RUDD-MELIKIAN Inc. Oct. 7, 1959 [Oct. 31, 1958], No. 22395/63. Divided out of 939,813. Class 94(1). A beverage cartridge assembly comprises an elongated carrier of fluid permeable flexible material enclosing regularly spaced masses of beverage material and having indexing means for positioning the masses in a beverage dispenser during beverage preparation. As shown, assembly 13 comprises two continuous strips of fluid permeable material, e.g. paper, secured together along their edges and transversely to form cartridges 14, the indexing means being perforations 16. The cartridges can be used with the beverage dispenser described in Specification 939,813 which has pins 15 to engage perforations 16. An impermeable sheath may be provided for the assembly 13 and may consist of two strips of aluminium foil or polyethylene film secured together at their edges. The sheath may be evacuated or charged with inert gas. The beverage dispenser may have means for stripping off this sheath.
Patent GB-634816-A (GB)
Title: Improvements in disc brakes
IPC: F16D55/40
Filed: 1947-08-13
Abstract: 634,816. Disc brakes. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Aug. 13, 1947, No. 22475. [Class 103 (i)] In a wheel and disc brake assembly comprising outer and inner annular brake discs, 3 and 4 respectively, capable of axial but non-rotational displacement relative to the wheel, one or more groups of friction elements 20, 21, 26 partially covering the friction surfaces of said discs 3 and 4, and torque-resisting members 31 on each side of each group of friction elements, the said torque-resisting members 31 extend axially between the outer and inner sets of discs 3 and 4 from a non- rotatable support-member 9 and the friction elements 20, 21, 26 are supported by but axially displaceable relative to them. The torque is transferred from the friction elements by means of grooves 30 thereon engaging the sides 34 of the torque-resisting members 31, this arrangement avoiding the usual weakening of the elements by passing torque rods through holes therein. The axially-extending studs 32 of the members 31 may be braced by a ring 37 at their ends remote from the fixed supportmember 9. Specifications 625,726 and 631,880, which relate to disc brakes, are referred to.
Patent GB-762635-A (GB)
Title: Process of producing cryolite from washing and waste liquors containing sodium fluoride
IPC: C01F7/54
Filed: 1954-08-03
Abstract: Cryolite is produced from waste liquors (e.g. scrubbing liquors) containing sodium fluoride by precipitating with a solution of aluminium fluoride still at 70-95 DEG C. as a result of the heat liberated in formation by introducing with stirring 60-90 per cent by weight hydrofluoric acid solution into an aqueous suspension of hydrated alumina containing as much water as will produce an aluminium fluoride solution containing 120-180 kg. AlF3/cu.m.  It is stated that the aluminium fluoride solution should not be stirred after formation to prevent the precipitation of a viscous crystal paste.  In the preferred procedure, the solution of sodium fluoride and the alumina suspension are introduced into a tank simultaneously.
Patent GB-534531-A (GB)
Title: Improvements in high frequency amplifiers utilising electron discharge devices
IPC: H03F1/36
Filed: 1939-08-04
Abstract: 534,531. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 4, 1939, No. 22648. Convention date, Aug. 5, 1938. [Class 40 (v)] Feedback, for neutralizing the effect of the grid-anode interelectrode capacity C2 is obtained by injecting the radio frequency potential appearing across an impedance 29 in the cathode lead into the tuned input circuit 18, 20. It is demonstrated in the Specification that the tuned output circuit 21, 26 together with stray capacity C4 constitutes with the impedance 29 a voltage divider, of such a nature that the voltage across 29. is out of phase with that between anode and cathode, and hence negative feed back can be obtained. In a modification, Fig. 2 (not shown), the impedance 29 is an inductance and the leads from the lower ends of the tuned circuit 18, 20 are interchanged. The impedance 29 may be constituted as a series tuned circuit so as to compensate for variation in amplification with frequency occuring in a tunable amplifier. The Specification as open to inspection under Sect. 91 of the Act discloses that positive feed back can be obtained if the leads are interchanged without changing the nature of the impedance 29 or vice versa. This subject-matter does not appear in the Specification as accepted.
Patent GB-727378-A (GB)
Title: Improvements in electrical plug connectors
IPC: H01R4/48
Filed: 1953-08-19
Abstract: 727,378. Binding-posts; two-part couplings. GARNEROT & CO. (CONSOLIDATED AGENCIES), Ltd. Aug. 19, 1953 [Aug. 19, 1952], No. 22875/53. Class 38 (1). A plug pin 2, Fig. 1, has an extension 3 extending through the body 1 and through a slot in a clamping member 5 slidable transversely of the body, the member being urged by a leaf-spring 4 to a position in which a lead inserted through the rear of the body may be clamped between it and extension 3. In Fig. 2, extension 3 passes through an aperture in the clamping member and the part of the latter which engages the lead 10 is provided with a metal pressure member 9. A coil spring 8 is used in this case which may be contained in the part of the clamping member which projects outside the body (Fig. 3, not shown). In a two-pin plug (Fig. 4, not shown) opposite faces of a body are recessed to receive clamping members and other parts which are held in place by cover-plates. Plugs with two or more pins may be formed by assembling side-by-side, single-pin plugs similar to those of Figs. 1-3. Distance-pieces may be interposed between the bodies to vary the spacing of the pins.
Patent GB-1604108-A (GB)
Title: Backwash fast filter installation
IPC: B01D51/10
Filed: 1978-05-26
Abstract: The backwashable rapid filter unit has a plurality of filter zones (8). During backwashing, the level or pressure difference (A-B) between an overflow edge (9) for the clean water and sludge orifices (10) in each filter zone (8) force the clean water serving as flushing water from a communicating system of buffer chambers (6) containing clean water through each filter zone (8) to be flushed. The flushing water flows simultaneously against the filtering direction always through only one filter zone (8) to be backwashed, while the remaining zones (8) operate in the filtering mode. The difference in levels (A and B) is matched to the necessary amount of flushing water in this case; it is selected so that a sufficient, but not too large, quantity of water is always available as flushing water. The number of the filter zones (8) of the unit exceeds the ratio of backwash to filtering rate by at least one unit, so that during a backwash procedure, at least as much clean water is generated as is required for backwashing. As a result of the concept of the unit illustrated, the expenditure required for backwashing is considerably reduced. <IMAGE>
Patent GB-439434-A (GB)
Title: Improvements relating to television or like apparatus
IPC: H04N5/225
Filed: 1934-08-08
Abstract: 439,434. Optical systems. BAIRD, J. L., and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. Aug. 8, 1934, No. 22927. [Class 97 (i)] [See also Group XL] In television, a lens 6 focuses a source 5 on a lens 7 which images the lens 6 on an aperture 1. The lens 6 may have a mask of such size that the aperture 1 is completely filled. The lenses may be movable to provide for adjustment of the solid angle of the beam. Specifications 271,131, [Class 40 (iii)], 358,916, and 381,898, [both in Group XL], are referred to.
Patent GB-501521-A (GB)
Title: Improvements in the manufacture of emulsions
IPC: C09K23/00
Filed: 1937-08-21
Abstract: 501,521. Cyclohexylamine soaps. HOWARDS & SONS, Ltd., and WEST, L. C. Aug. 21, 1937, No. 22989. [Class 2 (iii)] [Also in Group III] Cyclohexylamine soaps, e.g. with fatty acids of the stearic. oleic, ricinoleic or linoleic series or with cycloaliphatic fatty acids or naphthenic acids, may be made by heating together the base and the fatty acid in stoichiometrical proportions. They may be used as emulsifying agents. Specification 413,367 is referred to. Reference has been directed by the Comptroller to Specification 409,469, [Group V].