baber/WOPTO huggingface dataset:
Patent GB-1535781-A (GB)
Title: Corrugation-forming machines
IPC: B21D13/04
Filed: 1976-04-08
Abstract: 1535781 Corrugating COVRAD Ltd 8 April 1976 [21 Jan 1975] 2529/75 Heading B3E Sheet having corrugations of generally triangular form, so as to include two sets of aligned longitudinal portions interconnected by transverse portions, wherein the aligned longitudinal portions are closely adjacent and outwardly curved, has the curved portions flattened by passage past force transmitting means applied to the portions and having a component of movement in the direction of passage of the material, and a component transverse thereto. In the figure, corrugations initially formed as at 10, are closed up, portions 12 becoming outwardly curved. The material is then advanced between opposed surfaces 18 on arms 19 sliding in bores 22 in freely rotary members 23 and oscillated by crank pins 20 on shafts 25, whereby when the surfaces 18 contact portions 12 to flatten them, they move with the portions in the direction of material advance.
Patent GB-1168956-A (GB)
Title: An apparatus for the Flat Laying of Stockings
Inventor: SPARSO VIGGO HEMPEL
IPC: D06H3/16
Filed: 1968-01-17
Abstract: 1,168,956. Flat laying stockings. H. C. ANDERSEN. 17 Jan., 1968 [17 Jan., 1967], No. 2612/68. Heading A3V. An apparatus for the flat laying of stockings comprises a holding member 2 which receives and holds the leading end of a stocking conveyed thereto by a pneumatic stocking supply system 1 and a means 16 for producing a flow of air along a flat laying path 17 away from the holding member. In the embodiment shown in Fig. 1 the holding member on receiving the stocking is moved to position 2<SP>1</SP> and after release of the stocking the surface 17 tilts to drop it into a tray. The holding is preferably done by a needle 10 operated by a pneumatic cylinder 4 but may also be by tongs, a claw, or by suction. In an alternative embodiment the holding means is placed at the extreme end of the pneumatic supply tube 1 and the flow of air runs counter to that of the supply system, the tube being operable at its base to release the flat laid stocking into a tray. The conveying air tube is shut off during flat laying.
Patent GB-478774-A (GB)
Title: Improvements in or relating to the spinning of viscose artificial silk
IPC: F26B23/02
Filed: 1937-01-29
Abstract: There is added to a viscose spinning solution or spinning bath, an organic substance which, owing to the presence of a hydrophobic non-aliphatic group of long chain-like structure, which may include benzene or other cyclic nuclei and atoms other than carbon and hydrogen, ionizes in solution to form cations possessing surface-active properties.  Such substances include nitrogen bases, sulphonium, arsonium or phosphonium bases or their salts, and in examples, the following are specified, toluene-azophenyl-trimethylammonium iodide (obtained by heating 4 - toluene - azo - NN-dimethyl aniline with methyl iodide), benzeneazophenyl trimethylammonium iodide (prepared in a similar manner from 4-benzene-azo-NN-dimethyl aniline and methyl iodide), diphenyl - azophenyl - trimethylammonium methyl sulphate (obtained by diazotizing aminodiphenyl, coupling it with dimethyl aniline and treating the product with dimethyl sulphate in nitrobenzene solution), and isopropyl-naphthyl - trimethyl - ammonium iodide (by nitrating isopropyl naphthalene, reducing the product to isopropyl-naphthylamine, and heating with methyl iodide).
Patent GB-575640-A (GB)
Title: Improvements in or relating to vices
IPC: B25B1/24
Filed: 1944-02-14
Abstract: 575,640. Vices. F. N. (ENGINEERS) Ltd., and MALIA, A. Feb. 14, 1944, No. 2710. [Class 61 (ii)] A vice, of the type comprising a slotted body member having a flat upper surface with movable jaws guided in the slot and of the same width as the slot, has jaws 3, 4, Fig. 1, and a feed screw 5 mounted in a bifurcated frame 2 removably assembled in the body member 1. The fixed jaw 3 is integral with the frame 2, which comprises two vertical side members 2a, Fig. 3, terminating in a bored end piece 2b. The feed screw 5 is secured at the end piece 2b by a thrust ring 6. A threaded boss 3a on the jaw 3 is a sliding fit in a vertical slot in the end member 1b ot the body 1, and a locking nut 7 secures the frame 2 in the body member 1. Two coaxial bolts 8, provided with locking nuts 9, make sliding contact with the jaws 3, locate the frame 2 laterally in the body member 1. A plate 4a holds the jaw 4 to the frame 2 by a screw 4b, with shims 4c inserted to ensure a sliding fit. A projection 12 on a cam 13 may be engaged with a groove 10a in a ring 10 to provide means for raising or lowering the frame 2 by rotation of the feed screw 5. The vice is assembled by passing the frame 2, without the feed screw 5, through the longitudinal slot 1d. The feed screw is then passed through the body and the jaws, the thrust ring 6 mounted, and the locking nut 7 screwed up. Specification 405,085 is referred to.
Patent GB-251349-A (GB)
Title: Improvements in electric telephones
IPC: H04R19/04
Filed: 1925-01-31
Abstract: 251,349. Walker, M. Jan. 31, 1925. Condensers.-A light diaphragm 1 is arranged between two perforated screens 2, 3, or close to one such screen. The diaphragm may consist of metal foil or a thin membrane coated with bronze powder or graphite. Specification 189,982 is referred to.
Patent GB-1384256-A (GB)
Title: Tooth forming tool
IPC: B21H5/02
Filed: 1972-01-20
Abstract: 1384256 Rolling M R ANDERSON 20 Jan 1972 [8 Feb 1971] 2823/72 Heading B3M A rack tool for cold forming teeth on the periphery of a cylindrical workpiece for forming for example splines, gear teeth and serrations, comprises a rear portion 144 having identical teeth 146 complementary to the teeth to be formed on the workpiece and a front portion 142  having teeth 148 which extend from the same root line 165 as the rear teeth 146 and are congruent with the rear teeth 146 from the tips of the latter towards their roots but which have their tips 152 spaced from the plane 150 of the tips 154 of the teeth-146 at progressively increasing distances towards the leading end of the tool. The workpiece is rolled using two rack tools moving in opposite directions (Fig. 4, not shown). The tip of each tooth is radiused from its midpoint to one edge (52a) (Fig. 6, not shown) and the junctures between the leading and trailing flanks of the teeth and the tips and root line are radiused. Reference is also made to a tool (Fig. 5, not shown) wherein the front teeth and rear teeth are identical but their root lines are inclined at an angle (y) to each other.
Patent GB-284356-A (GB)
Title: Improvements in or relating to the detection of variations in the frequency of high frequency oscillations
IPC: G01R23/00
Filed: 1928-01-28
Abstract: 284,356. Elektromekano Aktieselskab. Jan. 28, 1927, [Convention date]. Measuring and testing apparatus; transmitting systems. - Variation in frequency is detected by employing circuits I, II tuned respectively above and below the frequency, each including a device thermally responsive to the oscillatary current and connected in a third circuit so as to differentially influence an indicating device. The Figure shows thermoelectric elements 5, 6 placed in the tuned circuits and arranged to actuate a current indicator 4. In a modification (Fig. 2, not shown), a resistance with a high temperature coefficient is inserted in each circuit and also included in the arms of a Wheatstone bridge, the unbalance of which operates the indicator. A recording instrument may be substituted for the indicator 4 or the bridge galvanometer. Alternatively, a relay may be actuated to give one signal on a rise and another on a fall in frequency or to actuate correcting means associated with the generator. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the provision of hot-wire instruments or incandescent filament lamps as indicators for the tuned circuits. This subject-matter does not appear in the Specification as accepted.
Patent GB-825747-A (GB)
Title: Improvements relating to the control of steam winding engines
IPC: F01B25/00
Filed: 1956-01-30
Abstract: 825,747. Fluid-friction brakes. GUTEHOFFSHUTTE STERKRADE A.G. Jan. 30, 1956 [March 4, 1955], No. 2871/56. Class 103 (1). [Also in Group XXIX] The cylinders 1, 2 of a steam winding engine are connected in parallel to a supply pipe 5 and an exhaust pipe 6, the two pipes being joined by a conduit 8 containing a braking valve 9 operated through a lever 10 by a piston and cylinder device 12 in an hydraulic system comprising a pump 13 and a unit 16. The latter is provided with a hand-actuating lever 17 and pressure elements 18, 19; element 18 is subjected to pump pressure under the control of an electromagnetic valve 25 connected to both a speed governor 20 and a manual throttle lever 22, which lever operates a throttle 7 in the supply conduit 5, the latter also being connected to element 19 via a pipe 27. Opening of valve 25 and hence actuation of element 18 causes closure of braking valve 9 whilst pressure in pipe 27 actuates element 19 which tends to open valve 9. The hydraulic system may be manually controlled. To lower a load the engine speed is set by the throttle 7 whilst lever 17 is set for manual operation; when the set speed is attained the throttle 7 is closed, the engine valve gear reversed and the valve 9 opened a little since the throttle and valve 25 are interconnected so that the engine acts as a compressor whereupon the lever 17 is used to give the desired lowering speed after which the latter is automatically adjusted by the governor 20 and the pressure in pipe 27. The valve 9 is automatically closed when the throttle is opened. The elements 18, 19 convert the applied pressure into opposing impulses the resultant of which effects control of the piston and cylinder 12.
Patent GB-130420-A (GB)
Title: Improvements in Carburetters for Internal Combustion Engines.
Inventor: PULLIN CYRIL GEORGE
IPC: F02M19/00
Filed: 1918-02-19
Abstract: 130,420. Pullin, C. G. Feb. 19, 1918. Addition to 125,136, [Class 135, Valves &c.]. Tools for setting-out work.-The parent Specification describes means for obtaining by actual trial, the shape of a cam which is interposed between the throttle and fuel valves so as to ensure maximum power at all throttle openings. The invention consists in improved means for obtaining the shape of the cam, in means for marking the cam from the driver's seat and in the cam so produced. The geared rollers described in the parent Specification are enclosed by the casing B, and the spindle of one of the rollers carries the cam blank M which is to be marked. The tappet-rod which transmits the motion of the cam to the lever K which actuates the fuel valve, is replaced by a marking spindle T, a head t on which carries a centre punch or scriber overhanging the blank. For successive positions of the throttle valve as determined by a spring pin V in holes v, the spindle T is adjusted by a nut U until the engine is running as desired. The blank M is then marked by a blow on the head t. The nut U may in a modification be actuated from the driver's seat through a flexible cable and pinions, and the centre punch may be actuated from the same position by the arrangement shown in Fig. 3. The punch y is carried in a casing Y fixed in the head t and is normally retracted by a spring E. It is actuated, so as to mark the blank M, by a push button G which moves the inner member z of a flexible cable Z. In a further modification the head t is adjusted by a direct push or pull of a flexible cable.
Patent GB-607341-A (GB)
Title: Sheet feeding and drying apparatus for plate-printing or die presses
IPC: B41F23/04
Filed: 1946-01-30
Abstract: 607,341. Drying-apparatus; delivery apparatus. HOBBS, S. J. Jan. 30, 1946 No. 3043. [Classes 100(i) and 100(ii)] Printed sheets are delivered from a die-- press to a horizontal travelling band 24 on which the impressions are dried by passage through a hood 26 enclosing one or more infra-red lamps the rays of which are directed on to the printed sheets. The sheets may be fed from a pile 14 by a reciprocating gripper 19 and delivered therefrom to the band 24 in two stages by grippers 20, 21 moving uniformly with the gripper 19 on a guide bar 15, the gripper 20 carrying a printed sheet from the press to an intermediate delivery table 23 from which it is taken by the gripper 21 and deposited on the band. The sheets are deposited in echelon so as not to cause smudging by overlapping of the printed matter. The gripper carriages 16, 17, 18 are operated by a cam and linkage 27, 28, 29, 30 from the press. The sheets can be delivered by hand onto the band 24 which is advanced intermittently by crankmechanism which operates a pawl-andratchet device, or which oscillates a sprocket-chain driving a free-wheel sprocket 24. The grippers may be mounted on an endless chain which is moved intermittently or continuously in the same direction, or may be reciprocated.
Patent GB-123182-A (GB)
Title: Improvements in or relating to Bombs or the like.
Inventor: CARROLL LAWRENCE HUGH
IPC: F42B30/10
Filed: 1918-02-21
Abstract: 123,182. Carroll, L. H. Feb. 21, 1918. Projectiles. - Consists in making bombs with a central air passage 2 and a hollow open-ended tail forming an extension of the passage 2. The bomb shown has a tail tube 3 of cloth and is made from two tubes 1, 6 secured together between flared rings 7, 9, the latter of which also serves to fasten the tail. The central air passage 2 may widen towards the rear, and in the case of large bombs it may be replaced by several passages.
Patent GB-914215-A (GB)
Title: Aerating apparatus for a stirring cell
Inventor: PINKOW HANS
IPC: B01F5/10
Filed: 1961-01-27
Abstract: 914,215. Agitating liquids. SCHWERMASCHINENBAU ERNST THALMANN VEB. Jan. 27, 1961, No. 3254/61. Class 86. In a device for agitating and aerating liquids the container 3 has a partition forming a mixing channel 12 into which depends a tube 7 closed at its upper end and having a frusto-conical mouth 8. A coaxial shaft 4 carries impellers 5, 6, the impeller 6 being of the same diameter as the tube mouth and placed immediately below it, to draw air into the liquid through the tube 9 and stop-cock 10 ; the impeller 5 circulates the aerated liquid. The device is applicable to froth flotation processes.
Patent GB-438638-A (GB)
Title: Improvements in and relating to the manufacture of diaphragms for pumps and the like
IPC: F04B43/00
Filed: 1935-02-01
Abstract: 438,638. Diaphragm pumps. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Dorr Co., Inc. ; 247, Park Avenue, New York, U.S.A.) Feb. 1, 1935, No. 3284. [Class 102 (i)] [See also Groups VIII, XXVI, and XXIX] In a reinforced rubber or rubber substitute diaphragm, for a pump or other purpose, the reinforcement consists of layers of cord fabric and is made by flattening a cylinder of the fabric. The fabric preferably consists of cords secured by adhesive. Two superimposed layers 8, Fig. 10, of the fabric are wound on a mandrel 1, with the cords of the layers at an angle to each other and to the axis of the mandrel. A reinforcement 18 of woven fabric is interposed between the layers at one end. The cylinder thus formed is mounted on a rotating disc 2, Fig. 17, by pressing the reinforced end of the cylinder over a collar 4. The cylinder is then flattened by means of a roller on to a rubber disc 23, which has been rendered adhesive. A second rubber disc is then secured to the upper surface of the fabric, and the completed diaphragm is vulcanized in a mould.
Patent GB-1339862-A (GB)
Title: Diode image intensifier or image transformer tube
IPC: C07C45/71
Filed: 1972-01-24
Abstract: 1339862 Image intensifier tubes OPTISCHE INDUSTRIE DE OUDE DELFT NV 24 Jan 1972 [8 Feb 1971] 3306/72 Heading H1D Part of the envelope of an image intensifier tube is deformable to allow the cathode-screen distance to be adjusted. In Fig. 1 the glass support 3 for the screen 4 is mounted in a ring 7 connected by a bellows 8 to a metal envelope portion 9. A threaded ring 12 is secured to one end of the bellows and is engaged by an adjusting nut 13 which may be rotated in order to move the screen axially. In this embodiment a truncated conical electrode 11 is attached to the screen and moves with it; in a modification (Fig. 2, not shown), this electrode is supported from a fixed envelope portion and the screen is supported by a corrugated diaphragm which allows axial movement.
Patent GB-921795-A (GB)
Title: Improvements in and relating to copper-base alloys
Inventor: WATTS GEORGE ROLAND
IPC: B23K35/22
Filed: 1961-01-27
Abstract: A copper-base alloy containing up to 2% Cr, a minor amount of Zr and the balance Cu is solution heated at a temperature between 1000 DEG C. and the solidus, quenched and aged at 300-500 DEG C.  A minor amount of Zr is defined as an amount which does not depress the solidus to 1000 DEG  C.  The alloy may contain Si up to 0.1% and it is particularly suitable for the production of welding electrodes. Specification 512,142 is referred to.
Patent GB-686116-A (GB)
Title: Improvements in or relating to the production of water-soluble salts of carboxymethyl cellulose ethers of improved physical form
Inventor: RIGBY CHARLES HERBERT
IPC: C08B11/20
Filed: 1950-02-09
Abstract: A water-soluble salt of carboxymethyl cellulose moistened with an aqueous solution of a water-miscible alcohol is converted into a powdery product of relatively high bulk density by subjecting it to roller pressure between hard surfaces sufficient to cause the particles of the cellulose ether salt to spread under the pressure and form a substantially continuous web of at least incipiently gelated still wet material, drying the web and disintegrating the resulting hard brittle sheet elements to a powdery product.  The material may be in a teased condition, or may have been already compacted into a sheet of wet fibres by light pressure, before it is subjected to the roller pressure treatment that effects its incipient gelation.  The rolls may be warm or cold.  In the case of sodium carboxymethyl cellulose containing its own weight of aqueous ethyl alcohol, the optimum water content for this alcohol may be 45-50 per cent by weight.  Heavy steel roller apparatus, such as is used for masticating plastic sheets, may be used. Methyl, ethyl, or isopropyl alcohol may be used.  The rollers may rotate at the same or differing speeds.  The limp web of opalescent appearance which is formed may be dried in a current of hot air.  Disintegration may be effected in a multiple-hammer attrition mill or a rotating opposed-pin disc machine.  The resulting powder is devoid of any fibrous structure. It is free-flowing and mixes easily with other powdery materials such as sodium sulphate or flour.  It may be used in making food preparations or detergent powders.  In an example, bleached sulphite wood-pulp chips are cut into small squares and treated with caustic soda and aqueous ethyl alcohol.  After ageing, a further quantity of ethyl alcohol together with monochloracetic acid is added.  The temperature is raised to 60 DEG  C. and then at p  the end of the reaction the mixture is cooled to 30 DEG  C. and slurried with aqueous alcohol of concentration sufficient to wash out the by-product salts without destroying the fibrous nature of the product.  The free alkalinity is removed by adding the required amount of nitric acid.  The product is centrifuged, teased out, and fed into the nip of a pair of unheated steel rollers set so as to touch.  After passing the nip of the rollers, the material emerges as a continuous, opalescent, sheet of partially gelled fibres.  The product is dried in hot air and the resulting brittle sheet is broken up and disintegrated in a hammer-mill.  The fibrous form disappears and the product becomes a fine powder.  The bulk density is 0.82 gm. per c.c. Specification 658,777 is referred to.
Patent GB-452922-A (GB)
Title: Improvements in or relating to power transmission mechanism for aircraft
IPC: B64C27/12
Filed: 1935-02-01
Abstract: 452,922. Aircraft with rotary-wing systems. YOXALL, J., YorkHouse, Deganwy, Carnarvonshire, and PROPELLO INVENTIONS, Ltd., 105, Cheyne Walk, Chelsea, London. Feb. 1, 1935, No. 3388. [Class 4] [See also Group XXIV] Power-transmission mechanism for aircraft includes a fluid-flywheel, hydraulic coupling, or torque-converter, having two or more members relatively and individually rotatable, combined and arranged with change-speed gearing to operate between an engine and a lifting or stabilizing rotor. As shown, a driving shaft 2 is mounted in bearings 3, 5, the latter being disposed in a recess in a fluid coupling element 22. An intermediate element 8 of a hydraulic clutch comprising members 9, 12, is splined to the shaft. The clutch is operated by fluid pressure admitted through a pipe 18 and passages 29 to metallic bellows 14. The clutch member 9 is carried by the primary fluid coupling element 11 which is integral with a casing 20 and is rotatable on bearings 16, 17. Thus power is transmitted from the shaft 2 on closure of the clutch through the fluid coupling, which may be of the kind described in Specification 414,641, [Group XXIX], or 448,159, [Group XIX], to a shaft 23. The shaft 23 drives a shaft 28 connected to the rotor or propeller through a countershaft synchro-mesh change-speed gear, the gear changes of which are regulated by actuation of a lever 27. Any type of variable-speed gear may be employed including that described in Specification 450,246. Specifications 421,178 and 448,560 also are referred to.
Patent GB-949306-A (GB)
Title: Method of making alkylidene bis-dibromo-phenols
Inventor: DIETZLER ANDREW JOSEPH
IPC: C07C37/62
Filed: 1962-01-30
Abstract: Alkylidene bis-dibromophenols are prepared by direct bromination of alkylidene diphenols in a solvent non-solvent system.  The preferred solvents are aliphatic alcohols of 1-4 carbon atoms, and the preferred non-solvent is water. The entire process may be effected in a solvent non-solvent system, or the bromination may be effected in a solvent only and a non-solvent then added to precipitate the product. The latter procedure is particularly useful when methanol or ethanol is used as the solvent and it is desired to recover, as a distillate, methyl or ethylbromide formed as a by-product from the alcohol and hydrogen bromide liberated in the bromination. The bromination may be effected at 15-45 DEG C. over a period of at least one hour, and the reaction mixture may then be heated under reflux, suitably for half an hour; the mixture may then be cooled and the product filtered. Examples are given of the bromination of 4, 41-isopropylidene diphenol to yield 4, 41-isopropylidene-bis (2, 6-dibromophenol). The bromination of 4, 41-sec.-butylidene diphenol and of 4, 41-cyclohexylidene diphenol is also mentioned.
Patent GB-1245263-A (GB)
Title: Tension device for a textile machine
Inventor: MACKIE JOHN KAY PRINGLE
IPC: D02H13/24
Filed: 1968-01-23
Abstract: 1,245,263. Tensioning device. JAMES MACKIE & SONS Ltd. 6 Jan., 1969 [23 Jan., 1968], No. 3541/68. Headings DID and D1M. A tensioning device for controlling the unwinding of plastics tape 4 or yarn from a package 5 (e.g. a creel for a bearing machine) comprises a pair of similar spring arms 16, 17 mounted side by side such that the arms converge from their mountings into. pressure, contact with one another to define a nip through which the tape or yarn passes. As shown, arm 16 includes a guide opening 25 for the tape or yarn. Arm 16 is fixed to an upright support 2 of a creel while arm 17 is fixed to a bracket 19 formed with fingers 27-29 fitting on alternate sides of a flange 20 of the support 2 so as to permit pivoting movement controlled by an adjustable siren with finger nut 31.