baber/WOPTO huggingface dataset:
Patent GB-511191-A (GB)
Title: Improvements in or relating to sighting telescopes
IPC: G02B23/10
Filed: 1938-01-14
Abstract: 511,191. Sighting-telescopes. KAPELLA, Ltd., and REASON, R. E. Jan. 14, 1938, No. 1280. [Class 97 (i)] A sighting-telescope is provided with two double-image prisms for dividing the light from the objective into two portions and for recombining the two portions so that the two partial images formed can be viewed simultaneously through an eyepiece, and means for reversing the displacement of one partial image relatively to that of the other partial image, the effective path lengths of the two portions of the light being such that a change of object distance would cause the two partial images to move at equal rates. Preferably the entrance pupils of the whole system for the two portions of the light are coincident. Relative reversal of the image displacements is preferably effected in two mutually perpendicular directions, either by reversing the displacement of one partial image in both directions, or by reversing the displacement of one image in one direction and of the other image in the direction at right-angles. The telescope is particularly intended for measuring the displacement of a member by observing the displacement of the image of a mark which may be provided on the member or may be contained in the instrument and projected on to the member by a collimator. In the form shown in Fig. 1 the rays from the objective B are divided by a Wollaston polarizing-prism C mounted with a field lens C<1> at the focus of the objective. The two beams pass through a collimating objective D and through apertures E<1>, E<2> in a mask E to an objective F, and are recombined by a Wollaston prism G, mounted with a field lens G<1> at the focus of the lens F, for transmission to the eyepiece H. Between the objectives D, F are two Dove's prisms J<1>, J<2>, one in the path of each beam, which reverse the two partial images in directions at right-angles to each other. Coincidence of the two partial images can be effected by deviators L, K, which, as shown, consist of sliding wedges, acting in planes at right-angles to each other. The positions of the deviators are indicated by pointers K', L<1>. The instrument may be arranged to be usable as an auto-collimating telescope by providing a lateral extension A<1> containing a lamp M and condenser M<1> for illuminating a mark M<2>, the optical distance of which from the objective B is equal to the focal length of the objective, the illuminating rays being directed axially by a transparent reflector M<3>. To improve the sensitivity, the mark may be in the form of a mutilated cross, Fig. 2, consisting of the right-hand halves of the horizontal arms and the upper halves of the vertical arms, so that when coincidence of the two partial images is obtained a complete cross is seen, Fig. 3.
Patent GB-161692-A (GB)
Title: Improvements relating to valves
IPC: F01L3/10
Filed: 1920-01-15
Abstract: 161,692. Gripper, A. C. Jan. 15, 1920. Cotters. - In a spring- loaded valve, more particularly for internal-combustion engines, the detachable collar a, on which the spring bears, has a tapered slot or keyway, and is secured to the valve stem c by a key e engaging in the slot and having a semicircular edge which engages a curved recess in the valve stem.
Patent GB-258466-A (GB)
Title: Improvements in hotplates for cooking
IPC: A47J39/02
Filed: 1925-04-17
Abstract: 258,466. Helps, G. April 17, 1925. Hot-plates k carrying burners for cooking are solely supported by legs e hinged to them and to feet d adapted to rest upon a cooker or other base; there being means to limit the movement of the legs, such as the stops b ; in another form. shown in Fig. 3, the legs e are pivoted to lugs f carried by the cooker or other base, or by the crown plate runners g. The construction allows a hot plate to be fitted to cookers of various sizes. the legs taking positions such as those shown in full and broken lines. In the case of hot-plates made in sections, the hinge pins on which the legs pivot may serve also to connect the sections.
Patent GB-703838-A (GB)
Title: Improvements in the electro chemical treatment of metals and alloys
Inventor: CHARLESWORTH PERCY ALLAN
IPC: B23H3/08
Filed: 1950-01-19
Abstract: 703,838. Making turbine blades. ELECTROPOL, Ltd. April 18, 1951 [Jan. 19, 1950,] No. 1395/50. Addition to 622,118, [Group XXXVI]. Drawings to Specification. Classes 83 (2) and 83 (4). [Also in Group XXXVI] An electrolytic process for shaping or contouring an article of metal or an alloy (see Group XXXVI) may be used in shaping gas turbine blades or in contouring holes in the flame tubes of jet turbine engines. The article may be first forged, then subjected to the electrolytic treatment and finally mechanically machined, or it may be subjected to alternate electrolytic shaping and mechanical machining. Specifications 568,207 and 699,013, [Group XXXVI], are referred to.
Patent GB-841176-A (GB)
Title: Improvements relating to electric melting furnaces
IPC: F27D11/08
Filed: 1958-01-15
Abstract: 841,176. Electric melting furnaces. DEMAGELEKTROMETALLURGIE G.m.b.H. Jan. 15, 1958 [Feb. 4, 1957], No. 1396/58. Class 39(3). An electric melting furnace comprises a furnace container 1 having a cover 2 suspended from a gantry 3 carrying electrodes 6 on supports 4 with arms 5 and resting on a tiltable main cradle constituted by cradle supports 10 and 11 on rollers 12. An additional cradle for the container 1 has cradle supports 13 and 14 and is supported by rollers 15 on a circular segment 16 of the main cradle, the two cradles being fitted one within the other so that the supports 10 and 13 can be interlocked by a longitudinal bolt 17 and the supports 11 and 14 by a bolt 18. For a small angle of tilt, e.g. for removal of slag, the cradles are interlocked and tilt together. For a larger tilting movement, e.g. when emptying the furnace, the electrodes are lifted from the furnace and the main cradle is locked to a stationary bearing so that it does not take part in the tilting of the container. The gantry may be of the type that can be swivelled around to one side, or may be provided with wheels 7 running on rails 8 upon which it can be wheeled away. One tilting mechanism, preferably acting on the additional cradle, operates to tilt both cradles.
Patent GB-450457-A (GB)
Title: Improvements in vests
IPC: A41D1/04
Filed: 1935-01-15
Abstract: 450,457. Waistcoats. EMMS, C., 11, Savile Row, London. Jan. 15, 1935, Nos. 1402 and 2974. Addition to 431.370. [Class 141] The dress or like vest of the parent Specification is modified by extending the foremost portion B<1>, Figs. 4 and 5, of the overlapping front portions beyond the line of stitching securing it to the other front postion B so as to provide a natural edge effect 10. The overlapping portion of the rearmost flap 11 mav be left loose so that the false button G provided therein will appear to button naturally through the buttonholes G<1> in the front portion B<1>. In another modification, Fig. 1, the front portion is secured detachably to the side portions C, D, constituting the back, by means of buttons and buttonholes 1 2, or any other suitable form of fastening. The side pieces C, D, may be elastic or provided with elastic inserts 4, or in a modification, the back of the vest may be constituted by a single piece which may be elastic.
Patent GB-857871-A (GB)
Title: Improvements relating to machines for overlapping and piling paper sheets and the like
Inventor: BONSOR DAVID VICTOR
IPC: B65H29/66
Filed: 1958-01-15
Abstract: 857,871. Sheet-delivery apparatus. DICKINSON & CO. Ltd., J. Feb. 4, 1959 [Jan. 15, 1958], No. 1406/58. Class 100(1) A method of overlapping and piling paper or like sheets comprises successively feeding the sheets at relatively high speed into a station, conveying the sheets through the station at reduced speed to enable sheets successively entering the station to overlap a sheet already in the station, and thereafter forwarding the overlapped sheets at an increased speed into an aligning station in which the leading edges of the overlapped sheets are aligned to form a pile. As shown, upper and lower endless tape conveyers 10, 11 are driven at high speed while an endless tape conveyer 14 is driven at a lower speed. The tapes of the upper conveyer 10 are supported by rollers 15 secured to a driven shaft 16, while the tapes of the lower conveyer 11 are supported by rollers 17 on a driven shaft 18. The shaft 16 is carried by a pair of bell-crank levers 20 pivotally mounted on a shaft 21. The rollers 15 can be lowered by actuation of the bell-crank lever 20 to grip the tapes of upper and lower conveyers, 10, 11 between the rollers 15, 17, thereby driving the tapes at high speed. Rollers 22, carried by bell-crank levers 23 pivotally mounted on a shaft 24 co-operate with driven rollers 25 (Fig. 2, not shown) on the shaft 18, Fig. 1, to feed the conveyer 14 at low speed. In operation, sheets are fed in the direction of the. arrow C between the conveyers 10, 11. As the first sheet of a batch to be overlapped and subsequently piled reaches the rollers 15, 17 the rollers 15 are raised and the rollers 22 lowered by cams, not shown, actuating the bell-crank levers. As each sheet is gripped between the rollers 22 and 25 (Fig. 2, not shown) its rear edge drops and is pushed downwardly by cams 34 to permit the next sheet to overlap, this action being repeated for subsequent sheets until the required number of sheets have been overlapped, whereupon the rollers 22 are raised and the rollers 15 lowered to feed the batch of overlapped sheets to a platform 38. The leading edges of the sheets are aligned by a cam-operated stop member 39 such that the sheets form a pile.
Patent GB-301232-A (GB)
Title: Improvements in the manufacture and production of nitric and sulphuric acid and in apparatus therefor
IPC: C01B21/26
Filed: 1928-01-16
Abstract: 301,232. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Tan. 16, 1928. Drawings to Specification. Catalytic processes.-Mixtures of ammonia and volatile compounds of sulphur are treated to obtain both nitric and sulphuric acids. The mixtures may' be those obtained by heating ammonium sulphite, such as that resulting from the washing of illuminating gas, or those obtained by mixing ammonia with gases obtained by burning sulphur, or roasting spent iron oxides or active carbon which have been used for desulphurization or sulphur ores. If the gas mixtures contain sulphuretted hydrogen and substances such as cyanogen compounds which act as catalyst poisons these are first oxidized by passing, them at 250-350‹ C. mixed with oxygen over oxidizing catalysts such as nickel, iron. cobalt, copper or lead, or their salts or oxides, together with carriers or activators such as molybdenum, tungsten cerium, thorium or antimony or compounds thereof. Ammonia in the gas mixtures is oxidized by a catalytic process, such as passage over platinum gauze or iron mixed with tellurium and bismuth at 600-700‹ C. in an apparatus in which the entering gases are heated by the reaction products. Sulphur dioxide may be oxidized to sulphur trioxide by a catalytic . process such as by treatment with iron oxides at 500‹ C. before or after the oxidation of the ammonia. The mixture of nitrogen oxides and sulphur oxides is mixed with oxygen and passed through a scrubbing tower fed with concentrated sulphuric acid or nitrosyl sulphuric acid. The resulting nitrosyl sulphuric acid is decomposed by heating in a tower to yield concentrated sulphuric and nitric acids.
Patent GB-1435651-A (GB)
Title: Continuous annealing furnaces
IPC: C21D9/573
Filed: 1974-01-11
Abstract: 1435651 Annealing steel strip NIPPON KOKAN KK 11 Jan 1974 [11 Jan 1973] 01441/74 Heading C7N Steel strip is annealed in a continuous annealing furnace comprising a recrystallization heating zone 5, a rapid cooling zone 6 and 7, a carbon precipitation zone 8 and a final cooling zone 9 such that the rapid cooling zone comprises a gas jet cooling zone 6 and a water quench zone 7. The furnace may also comprise means by which the strip may pass either through the water quench zone or  parallel to the water quench zone thereby bypassing the water quench zone. The strip, which may be of thickness 0.6 mm. or more, may be cleaned at 3, heated to 710C at 5, gas quenched to 500-600C using a hydrogen-nitrogen mixture and water quenched to noon temperature at 6, pickled, neutralized, rinsed and dried, held for more than 30 seconds at 400 to 500C at 8, finally cooled to room temperature at 9, subjected to a 1% reduction in temper mill 11 and coiled at 12. Alternatively when the strip is of less than 0.5 mm. thickness it may be gas quenched from 650 to 850C to 490C and passed parallel to the water quench zone to enter the carbon precipitation zone where it is cooled from 490C to 350C. The material treated by this method may be used in press forming applications.
Patent GB-880097-A (GB)
Title: Improvements in rotary electric switches
Inventor: GOOD JACK ALAN
IPC: H01H3/00
Filed: 1958-01-15
Abstract: 880,097. Rotary distributers. VATRIC (CONTROL EQUIPMENT) Ltd. April 14, 1959 [Jan. 15, 1958], No.1450/58. Class 38 (5). Contact segments 11 are arranged in a ring in an insulating support 10 for engagement by motor-driven wiper contacts 23, 24, the segments being flush with the support and formed by a printed circuit technique involving photoetching a thin copper coating on the support, this coating preferably being rhodium-plated. Several of these supports may be mounted parallel to one another for engagement by respective wipers.
Patent GB-871280-A (GB)
Title: Highly esterified polyvinyl hydrogen sulphates and a proces for the production thereof
IPC: C08F8/34
Filed: 1960-01-15
Abstract: Polyvinyl hydrogen sulphates in which the degree of esterification is from 60%-100% are made by reacting a polyvinyl alcohol with a solution of a chlorosulphonic acid-pyridine salt in pyridine, liberating the pyridine from the resulting salt by treating it with alkali, distilling off the pyridine and converting the resulting alkali metal salt into the polyvinyl hydrogen sulphate, e.g. by treatment with a cation exchanger. The polymers produced may be used as supports for acrylonitrile graft polymers with improved dyeing properties and these graft polymers may be made into filaments and fibres.  U.S.A. Specification 2,623,037 is referred to.
Patent GB-1164541-A (GB)
Title: Apparatus for Forming Open-Topped Trays from Blanks
Inventor: PODELIER PAUL
IPC: B31B50/46
Filed: 1967-01-11
Abstract: 1,164,541. Apparatus for erecting open topped trays. BOWATER PACKAGING Ltd. 1 Jan., 1968 [11 Jan., 1967], No. 1607/67. Heading B5D. Apparatus for forming an open topped tray from a rectangular blank having a base portion, two side wall portions, and two end wall portions each having an extension flag at each end comprises a pair of end wall and a pair of side wall erecting cams 30, 20 defining a rectangular throat, flap folding cams 40 so arranged that the flaps are folded to lie against the inside of the side wall portions, and a reciprocating plunger 67 which forces the blank into the throat, the plunger having means at each corner adapted to assist in securing the flaps to the side wall portions. A blank is initially fed either manually or automatically to the apparatus and located by vertical members 28, 38. A switch is then operated to cause double-acting compressed air cylinders 51 to force adhesive applicators 61 into contact with the blank. Upon reaching the bottom of their stroke the compressed air supply is diverted automatically to return the applicators to their initial position. This return movement operates a further switch which diverts the air supply to a cylinder 69, the piston of which carries the plunger. As the plunger nears the bottom of its stroke another switch is operated to divert the air supply to single-acting spring-returned cylinders 88 associated with pressure plates 91 and carried by adjustable plates 83 of the plunger. The plates are pressed against the flaps for 4-5 seconds to enable the adhesive to set. During this time the pressure in the cylinders 88 builds up to a predetermined maximum value, whereupon the pressure is automatically released. The air supply is again diverted to the cylinder 69 to cause the plunger to be withdrawn. The operation is repeated, and subsequently erected trays are pushed into a shoot 5. In an alternative embodiment the plates 91 may be replaced by stapling guns, and the adhesive applicators would be unnecessary. The pairs of end and side wall erecting cams are adjustable to accommodate blanks of different sizes.
Patent GB-605931-A (GB)
Title: Improvements in or relating to apparatus for heat treatment of materials
IPC: A47J36/38
Filed: 1947-01-17
Abstract: 605,931. Cooking-apparatus. BIRTLE, S., and BUSWELL, F. Jan. 17, 1947, No. 1609. [Class 28(i)] [Also in Groups XI and XXVIII] In heat treating materials, e.g. cooking potato crisps, frying fish and chips, the steam and frying fat vapours are drawn off through outlets 5 from each pan, and pass to a common manifold 6, by means of air blown into the manifold, e.g. at the point P of an air delivery pipe. The fumes from the burners also may pass through ducts 9 to the same common manifold to be similarly drawn away. A sump 14 receives condensed steam and oil or fat vapours, which then pass to an oil separator 17, from which the oil may be delivered back through a pipe 18 to the pans. In another arrangement, Fig. 3, for a single pan, the combustion fumes pass from fume ducts 8 to a separate manifold 20. To prevent fumes being blown back to the combustion chamber, they first pass through metal elbows 21, Fig. 5, having venturi-shaped outlets. In this case, compressed air for drawing away the fumes is supplied to the manifold through a pipe 23 at a point before the junction of the ducts 8. Specification 605,910 is referred to.
Patent GB-614159-A (GB)
Title: Building elements and methods of building
IPC: E04B1/61
Filed: 1945-01-22
Abstract: 614,159. Clamps. KATZ, E. Jan. 22, 1945, No. 1709. [Class 44] [Also in Group X] A clamp for securing together the margins 4 of two members 2 comprises jaws 6 operated by bolts 7. A screw 9 is provided to splay the margins 4. A further clamp for holding together two members at an angle comprises an angled support for two pairs of bolts which engage recesses in the members.
Patent GB-1048222-A (GB)
Title: Improvements in voltage regulators for generators
IPC: H02J7/16
Filed: 1964-01-15
Abstract: 1,048,222. Automatic voltage controls. ROBERT BOSCH G.m.b.H. Jan. 15, 1964 [Jan. 16, 1963], No. 1767/64. Addition to 1, 035, 071. Heading G3R. In a voltage regulator of the type in which a main transistor in series with the field winding of a generator is controlled in dependence upon output voltage variations, there is provided a controllable semi-conductor rectifier for protecting the transistor from overloads which might arise from a short circuit in the field winding. As shown, the output voltage of a generator 13 is maintained constant by a voltage regulator comprising a main transistor 22 in series with the field winding 14 of the generator and a control transistor 23 for controlling transistor 22 in dependence on output voltage as detected by a potentiometer 29 and a Zener diode 30. A controllable rectifier 36, having its anode-cathode path connected in parallel with the emitter-base path of the transistor 22, has its control electrode connected to the positive lead 16 of the generator, and the arrangement is such that this rectifier is rendered conductive when the emitter current of the main transistor exceeds a maximum permissible value; the conducting rectifier 36 then short circuits the emitter-base circuit of transistor 22 which is thus switched to its blocked state so that the emitter current is reduced to a safe value. The main transistor may be a compound transistor, and the control electrode of the controllable rectifier may be associated with a potentiometer. (Fig. 3, not shown).
Patent GB-829257-A (GB)
Title: Fuze for projectiles
IPC: F42C15/32
Filed: 1958-01-17
Abstract: 829,257. Ammunition fuzes. VILLA, A. R., and DE VERGER, F. P. R. Jan. 17, 1958 [Jan. 19, 1957; July 29, 1957], No. 1768/58. Class 9(1) A direct action percussion fuze comprises a metal cap 1 covering inertia-operated safety means which includes a collapsible bellows 2 surrounding an internally tapered cup 3 fitted over a second cup 4 supported on a member 6 having a cylindrical extension housing an annular primer 9. Screwed into the extension is the housing of a detonator 12 on which are supported a striker 11 equipped with firing pins 15 and a needle 10 passing through an axial bore in the member 6 and held against forward movement by a ball 7 which is locked by balls 8 in radial openings in the member 6. The bellows is supported by a spring 5 bearing against a flange on the sleeve 4. After firing of a projectile fitted with the fuze, the bellows collapses and sleeve 3 rides downwards on sleeve due to inertia, the enclosed air escaping through apertures 13, 14. As the projectile decelerates the bellows returns to the rest position and sleeves 3, 4 move forwards together so that the balls 8 escape into recesses 16 in the sleeve 4 and free the ball 7. On impact the needle 10 moves forward and the pins 15 fire the primer 9. The return movement of the bellows is braked by the calibrated openings 13, 14. The multiple striker 11 may have one or more guide pins extending into openings in the primer 9. A spring may thrust the needle 10 towards the locking balls. The bellows may be attached to the inner surface of the cap 1 and to a flange on the outer sleeve 3 or mounted as in Fig. 4, where an outer casing 20 surrounds the cap 1 and provides an opening 21 through which air enters and passes via channels 22 into the bellows 2. As the bellows expands it lifts the sleeve 4 and releases the balls 8. Lateral vents 23 allow air at static ambient pressure to enter the cap 1. During storage vents 21 and 23 may be closed either by a removable plastic bag or by plugs. In a modification the outer sleeve 3 houses a valve through which air enters to inflate the bellows and so move the sleeve 4.
Patent GB-547046-A (GB)
Title: Improvements in receptacles for storing and applying sand and similar solid materials to fires
IPC: A62C35/02
Filed: 1941-02-10
Abstract: 547,046. Fire-extinguishing. ADAM, W. C. Feb. 10, 1941. No.1773. [Class 47 (ii)] A device for facilitating the application of sand, earth, or other solid granular or powdery fire-extinguishing materials to incendiary bombs, &c. comprises a sheet metal conical container 1 closed at the top by a flat cone 2 provided with a handle 3, which is bent at 4 for engagement by the hook of a long arm, and formed at its lower end with a cylindrical discharge nozzle 5. A piece of sacking, &c., 6 is tied over a reinforcing ring at the mouth of the nozzle 5, which is also fitted with a drain guard 8. A long, tapering extension nozzle, or a sprinkler rose, may be fitted to the nozzle 5.
Patent GB-829653-A (GB)
Title: Improvements relating to mats
IPC: A47G27/02
Filed: 1957-01-17
Abstract: 829,653. Link mats. FREER, R.G. Dec. 13, 1957 [Jan. 17, 1957], No. 1790/57. Class 142(4) [Also in Group XIV] A link mat is assembled from links of polythene or polyvinyl chloride moulded with pips 3 which snap into recesses 6 in adjacent links. Short links 13 complete the ends of the mat. The links have undulated ribs 1 on their upper and lower edges and lightening holes or recesses 11 in their sides.