baber/WOPTO huggingface dataset:
Patent GB-458411-A (GB)
Title: Device for distributing air, gas and the like in liquids
IPC: A61H33/02
Filed: 1935-06-18
Abstract: 458,411. Aerating liquids. WEBER, H., 138, Forchstrasse, Zurich, Switzerland. June 18, 1935, No. 17467. [Class 14 (i)] Apparatus for dispersing gases in liquids, for example, in baths, consists of several dispersing tubes 3 alternated with the laths 4 of a wooden grating and mounted on hollow coupling members 5-7 which are connected by a header 9 to a supply hose 10 for gas. Each tube 3 consists of two tubes 15, 16 which are longitudinally slotted at 17, 171 so as to lie in contact with one another resiliently. The contacting surfaces, or one of them, are formed with fine threads or grooves, and the slots are arranged at an angle of 180‹. In a modification, Fig. 4, fibrous material such as felt is interposed between the tubes 15, 16. The tubes 15, 16 are mounted at one end on the coupling members 5-7 by screwed plugs with packing washers, and at the other on a supporting bar. Air under pressure is provided by a water-jet pump 11, or by other means.
Patent GB-895443-A (GB)
Title: Improvements in or relating to the manufacture of flexible coated sheet material
Inventor: WEBB WALTER WESTON
IPC: D06N3/00
Filed: 1958-06-02
Abstract: 895,443. Coated fabrics. IMPERIAL CHEMICAL INDUSTRIES Ltd. Sept. 2, 1959 [June 2, 1958], No. 17502/58. Drawings to Specification. Class 140. Coated sheet material having an embossed or textured finish with a high resistance to flaw cut at elevated temperatures is produced by applying a coating composition consisting of a vinyl polymer or copolymer or mixture thereof as a paste to a moving carrier in the form of an endless belt or roller patterned in relief so as to fill the valleys while leaving the remainder of the carrier surface substantially free from the composition, heating the composition until it gels, passing the carrier and the sheet material through a pair of nip rollers to combine the patterned composition with the sheet material, immediately cooling, and stripping the coated sheet material from the carrier. The composition may be applied to the carrier with the use of a suitably adjusted doctor knife. The term " sheet material " is defined as flexible woven, knitted or felted material in sheet form composed of natural or synthetic fibres or a mixture of such fibres. The sheet material may be coated on one or both sides. Specification 788,547 is referred to.
Patent GB-502892-A (GB)
Title: Improvements in light cooking stove operated by liquid gas
IPC: F24C3/14
Filed: 1937-06-24
Abstract: 502,892. Portable cooking - - stoves; burners. FOURNIER, A. June 24, 1937, No. 17593. Void. Convention date, June 24, 1936. [Classes 75 (i) and 126] In a portable cooking-stove employing " liquid gas," e.g. butane or propane, as fuel, the burner 9 and fuel tank 1 are located sufficiently close to each other that part of the heat generated by the burner is transmitted to the tank. The burner communicates with the tank through air admission fitting 10, pipe 6, cock 3, and tube 5, the latter opening into the tank above the level of the fuel therein. The burner head is formed with flanges 13, having apertures in which engage portions of stripmetal members 15, these members being so shaped as to fit around the tank 1 to hold it in position and also to serve as legs to support a utensil ring 16.
Patent GB-313176-A (GB)
Title: Improvements in methods of and means for radio broadcasting
IPC: H04B7/12
Filed: 1929-06-07
Abstract: 313,176. Lorenz Akt.-Ges., C. June 9, 1928, [Convention date]. Transmitting systems; fa d i n g , preventing.- Short-wave broadcasting is effected simultaneously on a number of different wave-lengths or by aerials that differ as regards the angle of vertical radiation in such a way that zones of non-reception for one transmission are filled up by zones of good reception for the other transmissions. As indicated in the diagram, one wavelength is well received in the zones I around the transmitting-station S, another in the zones II, and others in the zones III, IV. The wavelengths may be varied according to the time of day, or additional wave-lengths may be used. As each transmitter is only intended to give reception in its optimum zone, only low power is required.
Patent GB-1373479-A (GB)
Title: Clutch withdrawal bearing assemblies
IPC: F16D25/08
Filed: 1973-04-12
Abstract: 1373479 Clutch control SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 12 April 1973 [13 April 1972] 17626/73 Heading F2L  An hydraulically operated clutch release bearing assembly comprises outer and inner races 12, 14 constructed of sheet metal and axially movable within a housing 3, 6 under the action of fluid pressure supplied through a bore 9 to disengage the clutch. The bearing 2 is sealed in the housing through a diaphragm 17, and is permitted angular and radial play therein for centring of the bearing by virtue of clearance between the bearing 2 and the portion 6 of the housing. A spring 19 acts on the bearing via a presser plate 18. In a further embodiment a central bore is provided for passage of the output shaft of the clutch (Fig. 2, not shown) and in a yet further embodiment (Fig. 3, not shown) the inner race is non-rotating and the outer acts on the clutch operating means (the opposite from that shown).
Patent GB-134305-A (GB)
Title: Improvements in and relating to Wash Boilers.
Inventor: CORRITORE MARY
IPC: D06F1/00
Filed: 1918-10-29
Abstract: 134,305. Corritore, M. Oct. 29, 1919. Washing-boilers.-In order to divide a washing- boiler into compartments for boiling different articles at one time, e.g. coloured articles and white articles, the boiler 10 is provided with a partition 17 which extends upwardly at 18 to contact with a dome-shaped cover 13, and its sides fit into slots 20 arranged on the flange 15 of the cover. The partition has rectangular flanges 19 at its edges, which are secured to the sides of the boiler, preferably by riveting.
Patent GB-1391984-A (GB)
Title: Method of and apparatus for opening a zozzle on a molten metal containing vessel
IPC: B22D1/00
Filed: 1972-04-17
Abstract: 1391984 Slide valves for metallurgical vessels USS ENGS & CONSULTANTS Inc 17 April 1972 [18 Feb 1972] 17682/72 Heading F4B A slide valve arrangement for a tundish 10 used in the continuous casting of steel includes a sliding gate nozzle 24 and a sliding gate 15 with a porous plug 18 connected via a three-way valve 23 with a source 21 of inert gas and a source 22 of oxygen. In operation, with the plug positioned centrally below the pouring nozzle 13 and the tundish being filled with molten steel, inert gas, e.g. argon is passed through the plug. From 5-15 secs. before casting a strand oxygen is introduced at from 5-15 standard cu. ft./min., whereupon the gate 15 is replaced by sliding gate nozzle 24. A preferred oxygen rate is 8-10 cu. ft./min. for 7-10 sees. The diameter of the nozzle should be less than that of the nozzle plate orifice 14 which ma,y be made of zirconia.
Patent GB-596416-A (GB)
Title: Improvements in the construction of continuous cavity wall blocks
IPC: E04B2/28
Filed: 1945-07-11
Abstract: 596,416. Building-blocks. KING, G. C. July 11. 1945. No 17686 [Class 87(i)] [Also in Group V] A building - block comprises two sections 1, 2, joined by ties 4. Grooves are formed in a side of the block by mould parts 15. The end walls of the block may have semicylindrical recesses adapted to mate with corresponding recesses in an adjoining block to which it is to be keyed as by cement or mortar. Specification 536,562 is referred to.
Patent GB-134593-A (GB)
IPC: B01D5/00
Filed: 1918-10-30
Abstract: 134,593. Welch, H. V. Oct. 30, 1918. Acids, concentrating.-Dilute acids and other solutions are vaporized, the resulting vapours are cooled to produce a mist or fume containing particles of concentrated acid in suspension, and the mist is precipitated to obtain a concentrated solution. In concentrating sulphuric acid, the dilute acid is vaporized in a chamber 1, and the vapours are passed through an electrical precipitator 9 to remove suspended matters, and then through a cooler 11 to an electrical precipitator 16 in which the concentrated acid is collected. A series of coolers and precipitators may be used for the production of a series of concentrates, or for the successive separation of sulphuric acid and hydrochloric acid from mixtures of these bodies. The concentration of the sulphuric acid depends on the temperature to which the vapours are cooled; thus, 90, 80, and 70 per cent acids are produced at temperatures of about 260, 205, and 170‹ C. respectively. The vaporizing-chamber contains chequer-work 2 heated by a burner 3. The dilute acid is sprayed into the chamber by a nozzle 6. The resulting mixture of vapours and gases may be cooled by air circulating around the flues 13 in the casing 11. Cold air, admitted by an inlet 14, is preferably admixed with the vapours. The electrical precipitators 9, 16 may consist of flues 30 acting as collecting-electrodes and wires 31 acting as discharge electrodes and supplied with high-tension current as described in Specification. 5969/08, [Class 36, Electricity, Conducting &c.]. When the dilute sulphuric acid contains ferrous sulphate or other salts a saline solution free from sulphuric acid may be left as a residue in the vaporizing-chamber.
Patent GB-1046033-A (GB)
Title: Improvements in or relating to mattress border stitching machines
Inventor: SUMMERTON THOMAS FREDERICK
IPC: D05B11/00
Filed: 1962-05-09
Abstract: 1,046,033. Sewing machines. BRIDGFORD ENGINEERING CO Ltd. Aug. 9, 1963 [May 9, 1962], No. 17757/62. Heading D1G. Apparatus comprises a twin-needle chain stitching machine for hemming the respective edges of a strip of mattress border material, a multi-needle two-thread chain stitching machine for forming internal lines of stitching parallel to said edges and means interconnecting said machines for synchronous drive thereof from a common power source. A two-thread chain stitching machine 2, mounted on a cabinet-like support 1, has four needles 6 and draws needle and looper threads from packages 3, 4. Compressed air is directed on to the needles from apertures 44d in a manifold 44c. A separately-biased presser foot 44e is provided for each needle. The machine is driven by a separate motor and has feed rollers 11 for a mattress border strip 7. The latter comprises layers 8, 9, 10 drawn from respective drums 12, 13, 14 mounted on a trolleylike stand 15. The layers pass through the bars of a tensioning device 16 and an edge-folder to a chain stitching machine 18 which is mounted on stand 15 and has two sewing heads 19, 20 laterally adjustable to position the respective needles 19a, 20d at the edges of the strip, the machine 18 drawing threads from packages 29, 30. Heads 19, 20 are slidably mounted on bars 21, 22 and have fixed thereto respective units 23, 24 engaged by oppositely-handed screwed portions 26a, 26b of a journalled shaft 26. A pinion 27a, on the latter may be engaged with a pinion 27 which is mounted on a pivoted arm 28a and is operable by a hand wheel 28 to move heads 19, 20 together or apart. The driving shaft 33 of machine 18 is connected by a driving belt 31 to the driving shaft of machine 2. Shaft 33 is splined to receive internally-splined pinions 37, 38 respectively coupled to pinions 39, 41 and 40, 42 for driving the needles and loopers of the heads 19, 20. A pinion 27b on shaft 33 may be engaged with the pinion 27 for enabling machine 18 to be driven by the handwheel 28.
Patent GB-886456-A (GB)
Title: Semiconductor rectifiers
IPC: H01L25/03
Filed: 1960-05-20
Abstract: 886,456. Rectifier assemblies. WESTING- HOUSE ELECTRIC CORPORATION. May 20, 1960 [May 28, 1959], No. 17811/60. Class 37. Sealed silicon diodes which may be connected in series are provided with tapered terminal bases 11 having screwed extensions, and are insulatingly mounted in correspondingly tapered holes extending through a copper cooling bus. The clamping nuts and washers are insulated from the bus by further insulation 18. The bus is cooled by water in slots 25 covered by copper plates 26. Earthing of one terminal of the end diode of a series may be achieved through the bus-bar by omitting the insulation 18. Specification 777,985 is referred to.
Patent GB-114790-A (GB)
Title: An Improved Method of Cooling-off of Castings.
Inventor: GREENHILL CECIL BENJAMIN
IPC: B22D27/04
Filed: 1917-12-03
Abstract: 114,790. Greenhill, C. B. Dec. 3, 1917, Casting processes; electricity, heating by.-To control the cooling of steel and. other castings, electric currents are passed through them. As the thinner parts of the castings offer greater resistance they are heated by the currents and thus the cooling is controlled.
Patent GB-1398356-A (GB)
Title: Circuit arrangement for selecting stored constant voltages
IPC: H04N5/44
Filed: 1973-04-13
Abstract: 1398356 Transistor gating and amplifying circuits; radio receiving circuits LOEWE OPTA GmbH 13 April 1973 [4 May 1972] 17908/73 Headings H3Q and H3T A circuit for applying a manually selectable one of a plurality of pre-settable voltages to a load circuit comprises an equal number of voltage sources each to deliver one of the voltages to a first input of a respective first differential amplifier having a balanced output connected to the inputs a common further differential amplifier or amplifiers provided with output means connectable to such load and also connected to a second input of each of the first amplifiers so as to provide negative feedback loops. In radio apparatus tuning is performed by a varicap diode 22, Fig. 1, which receives its bias from a differential amplifier 5. Tuning voltages are set up by means of adjustable potentiometers 13, 14 and are applied to the inputs 9, 10 of differential amplifiers 1, 2 and 3, 4 respectively, the outputs of which are connected in parallel to the input of amplifier 5. The voltages are selected by means of switches 18, 19 which respectively bias conductive the transistors 20, 21 forming the common emitter impedances of amplifiers 3, 4 and 1, 2 respectively. Transistor amplifier.-The differential amplifier 5, Fig. 1, comprises a first emitter-follower nput transistor 23, Fig. 2, coupled to the base of a second transistor 24, to the emitter of which the second input is applied: the output is taken from the collector of transistor 24 via a common-emitter stage 25.
Patent GB-111901-A (GB)
Title: Improvements in Steam Boiler Furnaces.
Inventor: DUTTON JOHN
IPC: F23L7/00
Filed: 1916-12-14
Abstract: 111,901. Dutton, J. Dec. 14, 1916. Steam-generator furnaces; ash-pits; grates; fire-bridges.-Curved plates A supporting the grate are arranged in the flue of a Cornish boiler, and between them is fitted a tube or duct C supplying air to the bridge, which is formed with a passage D and grid E. For forcing the draught, a jet of steam may be delivered by the pipe F into the mouth of the tube C.
Patent GB-785561-A (GB)
Title: Regeneration of ammonia-sulphur dioxide cooking acid used in production of wood pulp
IPC: D21C11/02
Filed: 1955-06-21
Abstract: A cyclic process for pulping wood chips comprises treating the wood with an ammoniasulphur dioxide cooking liquor, separating the waste liquor, treating the liquor with an acidneutralizing agent, suitably calcium oxide, to obtain a pH of at least 7.5, separating the precipitate (A), if any, which forms, and heating the neutralized liquor at a temperature above 150 DEG  C., preferably 235-300 DEG C., at a pressure of more than 200 p.s.i., which may be the autogenous pressure of the reaction mixture, in the presence of at least sufficient oxygen, suitably as air, to convert all the carbon present to carbon dioxide and all the hydrogen to water.  The condensable and non-condensable portions are separated, for example, in a flash chamber, and the ammonia from the non-condensable portion is separated from other gases, preferably by absorption in water. The condensable portion is treated with sufficient alkaline earth hydroxide, desirably calcium hydroxide, to liberate any more bound ammonia, which is then combined with the ammonia previously liberated, and the precipitate (B) of alkaline-earth sulphate is separated.  This precipitate (B) may be mixed with the previous precipitate (A) referred to above, and the mixture kilned at about 1530 DEG  C. to yield sulphur dioxide and alkaline earth oxide.  This sulphur dioxide may be mixed with the recovered ammonia and the resulting liquor re-used in the digestion process.  The alkaline earth oxide is also reused.
Patent GB-1161780-A (GB)
Title: Polychromatic Imaging Suspensions.
IPC: G03G17/04
Filed: 1967-04-19
Abstract: 1,161,780. Photoelectrophonetic imaging composition. XEROX CORP. 19 April, 1967 [21 April, 1966], No. 17961/67. Heading H1K. [Also in Division G2] Polychromatic imaging suspensions, particularly for use in the process of Specification 1,124,625 and comprising a plurality of electrically photo-sensitive pigments of which at least two which interact when milled together, are prepared by milling each interacting pigment separately with a non-interacting pigment in a carrier liquid, and then mixing the milled pairs of pigments, whereby the interaction of pigments is minimized. In the preparation of a suspension comprising interacting yellow and magenta pigments and a non-interacting cyan pigment, the yellow and magenta are each milled separately with parts of the cyan pigment, and then the pairs of pigments mixed. The pigments described in Specifications 1,124,625, 1,125,626, 1,137,885, 1,145,373 and 1,145,374 may be used, optionally in admixture with 0À5-5 mol. per cent of an electron donor or acceptor.
Patent GB-199944-A (GB)
Title: Improvements in screw propellers
IPC: B63H1/28
Filed: 1922-06-30
Abstract: 199,944. Jackson, R. C. June 30, 1922. Screw propellers. -Fins, ribs or vanes are disposed on the driving faces of screw propeller blades so that the channels between are in the form of vena contractae. The fins b, have sharp edges c forming tapering channels between the fins to a position d, the channels gradually widening to the rear edges e. The central axis of each fin is concentric with the shaft, the height and distance apart being varied as necessary to distribute the work done uniformly over the blade.
Patent GB-145706-A (GB)
Title: Improvements in punches
IPC: B25D5/00
Filed: 1920-06-30
Abstract: 145,706. Naberes, J. B. March 20, 1919, [Convention date]. Percussive hand tools. - In stamps, percussive tools, &c. in which by pressure on the body of the tool the striking hammer, which is momentarily locked to the punch proper, is displaced against the action of percussive springs, the locking device comprises a flexible rod which is fixed slightly eccentric to the punch, passes through the striker, and bears against a strop thereon, and is forced, at the end of its stroke, into a central position whereby the striker is released and projected against the tool. Integral with a punch &c. d is a piston c controlled by a spring f and reciprocating in the lower part of a tube a divided internally by a flange b, and a flexible rod o passing through an axial hole i in a striker g slidable in the upper part of the tube a and normally forced downwards by a spring h. A washer p fixed to the striker g is provided with a central hole of slightly less diameter than the hole i and the rod o engages the shoulder thus formed and has a conical end k extending through the hole in the washer. The upper end of the tube a is closed by a cap l in which is fixed a plug v having a central coned aperture x. When the punch is positioned on the work the cap l is pressed, the rod o lifts the striker g, compressing the spring h until the end k of the rod o engages the cone x and is moved towards its centre so as to release the striker g which is projected against the piston c and effects' the required marking.
Patent GB-259664-A (GB)
Title: Improved gain regulator of thermionic amplifiers
IPC: H03G3/22
Filed: 1925-07-14
Abstract: 259,664. Western Electric Co., Ltd., (Bell Telephone Laboratories, Inc.). July 14, 1925. Thermionic heterodyne receivers; thermionic amplifiers and detectors.-The output of a thermionic amplifier is regulated so as to obtain a substantially constant signal intensity by rectifying part of the output and impressing a potential derived therefrom so as to control the amplifier. The Figure shows a loop aerial 1 tuned by a condenser 10 connected to high frequency amplifying valves 3, 4 provided with condensers arranged to neutralize coupling between the valve input and output circuits. The output of the valve 4 is applied to the first detector 5 of a, superheterodyne type amplifier comprising a filter 6, intermediate frequency amplifier and detector 7 and a lowfrequency amplifier 8. Part of the output of the amplifier-detector 7 is selected by a circuit 13, 14 tuned to the intermediate frequency and applied to an amplifying valve 15 the output of which is rectified by a valve 16. The output of the detector 16 includes a resistance 18 the potential drop across which depends on the direct current flowing in the space path of the detector 16 and is applied to the grid of one or both the high frequency amplifying valves 4, 5 causing the anode-cathode impedance to vary and tending to maintain the signal at uniform intensity. The auxiliary wave source 2 may be coupled to the detector 5 or to the frame 1 in which case the auxiliary wave is subjected to the control of sensitivity.
Patent GB-1270302-A (GB)
Title: Padding of cellular material
Inventor: RAVICINO ADAMO
IPC: A47C7/18
Filed: 1969-04-08
Abstract: 1,270,302. Moulding cellular padding. TOSCANA GOMMA S.p.A. 8 April, 1969, No. 18032/69. Heading B5A. [Also in Division A4] A pad which is of cellular material, e.g. polyurethane foam, and which has a reinforcing core A at least in part of the same cellular material is formed by placing in a mould a core having apertures or passages A 1  extending therethrough and foaming a synthetic resinous plastics material around the core such that the foam B sets around the core and in said apertures and the corecontacting surface layers of the foam are of relatively denser and more compact material than the other parts thereof.
Patent GB-477375-A (GB)
Title: Improvements in jib-cranes
IPC: B66C23/10
Filed: 1936-06-29
Abstract: 477,375. Jib cranes. STERN, D. C., and SMITH, F. A. June 29, 1936, No. 18055. [Class 78 (iv)] Jib cranes are fitted with swinging arms for varying the radius of action without luffing the jib. The jib head has a pulley mounted directly thereon and a rigid beam suspended therefrom with means connected to its lower end to swing it to vary its radius of action, the load rope passing over the jib lead pulley and between guides on the rigid beam. Fig. 1 shows a jib 14, 18 mounted to slue on a pivot or turntable 13 and furnished with a pivoted beam 24 provided with guide pulleys 26 for the load rope 22. A pair of members 29, extending rearwardly from the hanger, are guided slidably at 30 on the framework. An operating-rope 32 passes from the rear of the member 24 and, after taking several turns round a windlass 33, is secured to the free ends of the members 29. By rotating the windlass by hand or power gear 36 the rope is operated to slide the bars 29 in one direction or the other, thus moving the member 24 to increase or decrease the radius of working. In some cases the radius-adjusting mechanism may be linked to and operated automatically from the slueing gear. When the member 24 is only required to be moved inwards from the freely-hanging position, the members 29 can be omitted, and the movement obtained by use of the rope 32 only. Fig. 4 shows a modification in which the member 24 is formed as a bell-crank lever. Operation of the windlass 44 to wind in the lower end of the rope 42 draws the member 24 inward from the freely - hanging position, while operation in the reverse direction hauls on the upper end of the rope to depress the arm 40 and so swing the member 24 outwards. Specification 137,244, [Class 78 (iv)], is referred to.