baber/WOPTO huggingface dataset:
Patent GB-699288-A (GB)
Title: Improvements in or relating to cyclone furnaces
IPC: F23C3/00
Filed: 1952-07-18
Abstract: 699,288. Cyclone furnaces. BABCOCK & WILCOX, Ltd. July 18, 1952 [July 20, 1951], No. 18193/52. Class 51(i) In combustion apparatus wherein a cyclone furnace communicates through a gas discharge throat with a secondary furnace chamber and has a longitudinal axis inclined downwardly for the purpose of slag drainage towards the secondary furnace chamber the axis.of the throat is set at an angle. to the longitudinal axis of the cyclone furnace and is normal or substantially normal to an upright wall of the secondary furnace chamber facing the throat. In the apparatus shown a cyclone furnace 1 substantially of the form illustrated in Figs. 3 to 9 of Specification 552,747 is inclined downwardly towards a secondary furnace chamber 9 gases from the furnace 1 entering the chamber 9 through a throat 7 the axis of which is horizontal and normal to the rear wall 8 of the chamber. Molten slag is drained from the apparatus through outlets 10, 11. Gases pass from the chamber 9 to a radiation chamber 13 through a slag screen 12 comprised by vaporizing tubes which form part of the tubular lining of the chambers 9, 13. The wall 6 of the cyclone furnace instead of being vertical to the axis of the furnace may be vertical to the axis of the throat 7.
Patent GB-403980-A (GB)
Title: Improvements in internal combustion engines of the liquid fuel injection type
IPC: F02B19/08
Filed: 1932-06-28
Abstract: 403,980. Oil engines. OLDHAM, R., Holmwood, Cleethorpes, Lincolnshire. June 28, 1932, No. 18203. [Classes 7 (ii) and 7 (iii).] To control the velocity of the air entering a combustion chamber 4 separated from the cylinder 2 by a narrow passage 5, an adjustable member 8 is moved across the passage 5 or the throat of the chamber. The member 8 may be moved by hand, electrically, or mechanically, and may be provided with grooved faces. In the modification shown in Fig. 3, the member 8 is hollow and has graduated perforations of varying sizes which split up the air into minute streams. In a further modification, Fig. 4, the member 8 has the form of a cylindrical valve and is operated by a worm shaft 9 to control the throats of the combustion chamber 4. The member 8 may be provided with oblique ports, and a peripheral recess may be formed around it.
Patent GB-578801-A (GB)
Title: Improvements relating to electric fuses
IPC: H01H85/175
Filed: 1943-11-03
Abstract: 578,801. Fusible cut-outs. WIARD, G. W. Nov. 3, 1943, No. 18232. [Class 38 (i)] A fuse comprising knife blades 1, 2, Fig. 1, joined by a flat fusible link 3, has a plastic moulded casing 6, which may be evacuated, gas or air filled, or filled with a heat diffusing substance, enclosing the fusible link. The casing, which may be transparent, is longitudinally divided in a plane perpendicular to the flat side of the knife blades and has slots 12, Fig. 4, in its ends, lugs 16 in the slots, engaging indentations 14, 15 in the blades. Stepped joints in the divided edges 17, 18 ensure correct assembly and a strip of luminous paint down the edge of the fuse link enables its state to be observed in the dark. In a modification, Fig. 5, strengthening flanges 41 and grooved ribs 42 are provided, the walls of the casing also being thickened at the casing joint, which in this case comprises a ridge 47 and a groove 48 on each half. The two halves of the casing are cementitiously united in both modifications.
Patent GB-580969-A (GB)
Title: Acoustical plaster and method of preparing same
IPC: E04B2/72
Filed: 1943-11-03
Abstract: A wall or ceiling plaster of high sound absorbing capacity consists of hydrated lime, fibrous asbestos and a foaming agent in the approximate weight proportion of 89 1/2 to 10 to 1/2 , the plaster containing numerous minute hollow cells giving it a density after drying of 18-23 lbs. per cubic foot, and the surface of the plaster has numerous spaced openings for admitting sound waves to the cells. The plaster is prepared by premixing finely ground hydrated lime preferably of dolomitic type with medium-length-fibre asbestos and a foaming agent such as a sodium salt of an alcohol sulphate, soap bark, sodium lauryl sulphate, an alkylated aryl-sulphate or the sodium salt of rosin and then adding water and mixing and aerating the mass for 2-15 minutes.  The amount of water used is about 14 times the weight of the asbestos.  The foamed mixture is then applied to a backing material which may be expanded metal, lath, concrete cinder block, painted plaster surfaces, gypsum lath, insulated board, clay or gypsum tile or to brick by trowelling (see Group XIII) and the spaced openings produced by stippling.
Patent GB-699274-A (GB)
Title: Improvements in or relating to electrical capacitors
Inventor: BURGER FRANCIS JOSEPH PETER JU
IPC: H01G4/18
Filed: 1951-08-07
Abstract: 699,274. Electric capacitors. BRITISH DIELECTRIC RESEARCH, Ltd. Aug. 6, 1952 [Aug. 7, 1951], No. 18604/51. Class 37. A condenser strip comprising metal foil coated on both sides with resinous dielectric material applied from a liquid composition of that material is subjected to an etching process which removes the metal at one or both edges of the strip, thereby making the width of the foil less than that of the coatings. A condenser strip, Fig. 2, comprising a metallic foil 1 coated on both sides with polystyrene 2 unwinds from a reel 5, Fig. 1, and passes through an electrolytic etching bath 12 and thence via washing bath 19 and drying oven 20 on to take-up reel 21. As drawn from the latter the finished strip appears minus the etched-away margin 26 as in Figs. 3 and 4 with coatings 1 projecting beyond the foil edges. To make the roll capacitor shown, Fig. 5, the strip is cut at 29, Fig. 4, and the two half-strips superposed and rolled together with the undercut foil edges inside the roll. The foil may consist of aluminium, tin or copper and the dielectric may be polytetra fluorethylene. The invention is not limited to electrolytic etching; a purely chemical etching process may be employed.
Patent GB-1236084-A (GB)
Title: Vehicle tyre inflation device
Inventor: BENSON JOHN ALAN
IPC: G05D16/20
Filed: 1968-04-19
Abstract: 1,236,084. Tyre inflation plant. KISMET Ltd. 18 April, 1969 [19 April, 1968], No. 18648/68. Heading A4T. A device for automatically inflating or deflating- a vehicle tyre includes an inflation valve, a test valve and an exhaust valve, arranged so that if the pressure in the tyre does not exceed that required by a predetermined amount, then the inflation and test valves operate to alternately connect the tyre to a pressure supply and to a pressure gauge until the required value is exceeded by the amount, when the test and exhaust valves operate repeatedly and alternately until the pressure decreases to the required value. Pressure-operated switch means are provided between the test valve and the connection to the tyre for automatically initiating operations when the pressure of a tyre connected to the device exceeds a certain value, e.g. 5 p.s.i., a manually operated switch being provided for use when it does not. The alternations may be provided by electrical means providing intermittent electrical pulses to a relay.
Patent GB-829238-A (GB)
Title: Tapered roller bearing
IPC: F16C33/78
Filed: 1957-06-13
Abstract: 829,238. Stuffing-box substitutes. BERMINGHAM, P. D. June 13, 1957, No. 18673/57. Class 122 (5). [Also in Group XXXIV] In a tapered roller bearing assembly 10, shown in the Figure as being interposed between a shaft 11 and a cylinder 12, a cup 15 and a cone 16 form respectively outer and inner races for tapered rollers 13, 13, the assembly being sealed at the ends by means of sealing discs 20, 30 which serve to retain lubricant in, and to exclude dirt from, the inside thereof, and also to restrict relative axial movement between the cup 15 and the cone 16. The disc 20, which fits into a groove 17 in the cone 16, comprises a rubber disc 21 reinforced by a metallic disc 22, the disc 21 being bifurcated adjacent the periphery thereof so as to form a pair of divergently-extending ribs 23, 24 which in cross-section present thin feathered edge portions 23a, 24a for engagement at an oblique angle with the internal face of the cup 15. The disc 30, which fits into a groove 18 in the cone 16, is similar to the disc 20 but is provided with a single oil-retaining feathered edge portion; it may, however, present a second feathered edge portion for engagement with the end of the cup 15 if dirt is to be excluded.
Patent GB-669862-A (GB)
Title: Improvements in gas-liquid or vapour-liquid contacting apparatus
IPC: B01D3/22
Filed: 1949-07-15
Abstract: 669,862. Treating liquids with gases. SOC. L'AIR LIQUIDE, SOC. ANON. POUR L' ETUDE ET L'EXPLOITATION DES PROCEDES G. CLAUDE. July 15, 1949 [July 24, 1948], No. 18727/49. Class 55 (ii). In superposed plate gas - liquid contact apparatus, plate apertures 7 in the form of slots with small hooded openings effect ejection of the gas in the horizontal direction in which the liquid flows towards a central receiving vessel 4. Some of the slots may be deeper than others which deliver gas only when pressure is high, and a vertical baffle may be provided to retard the flow when the amount of liquid is relatively small. Plates having a circular liquid path may have the slots disposed along radii or at an angle, as shown, which increases towards the periphery of the plate in order to counteract the centrifugal motion otherwise set up. Specification 400,798 is referred to.
Patent GB-571894-A (GB)
Title: Improvements in electrically heated hair waving apparatus
IPC: A45D4/16
Filed: 1943-11-12
Abstract: 571,894. Hair-waving apparatus. POOK, H. W. M. Nov. 12, 1943, No. 18821. [Class 39 (iii)] Apparatus for electrically heating hair-waving clips comprises a casing 1 to which is attached a hinged cover 3 forming a frame for supporting heating elements 4. Each element consists of a porcelain tube containing a coiled resistance wire 6, all the resistances being connected in series. The heaters are controlled by a hand switch, time switch and/or thermal switch and a thermometer may also be provided. Hinged clips, Fig. 5, are applied to the heated tubes with the finger-operated ends 21, 22 arranged downwards, so that cool air rising through perforations 14, 13 prevents undue heating of these parts. The clips are provided with strips 19, 20 of high specific heat and strips 23, 24, of heat insulation.
Patent GB-574693-A (GB)
Title: Improvements relating to electrical control apparatus
IPC: G05B11/01
Filed: 1943-11-12
Abstract: 574,693. Electric control systems. EVERSHED & VIGNOLES, Ltd., and NEEDHAM, J. C. Nov. 12, 1943, No. 18869. [Class 40 (i)] [Also in Group XXXVII] In a follow-up system, the reversing switch for the motor is actuated by a pair of relays which operate alternatively over contacts closed by the movement of the controlling member in either direction and which near the condition of correspondence act on those contacts in a self-interrupting manner so that the motor receives a succession of small impulses to bring it gradually to the position of rest. As shown, the relays are combined in a single structure which comprises a three-limbed core 23 carrying windings 20, 21 on the outer limbs and a centrally-pivoted armature 17 having mounted thereon a pair of contacts 15, 16 for engagement with a corresponding pair of contacts 13, 14 on the pointer 12 of a galvanometer 10, the circuits of the windings being completed over contacts 13, 15 and 14, 16 respectively. The spindle 28 of the armature 17 carries the actuating bar 29 of the reversing switch which comprises two fixed contacts 40, 41 and four contacts 36 ... 39 mounted on separate pivoted arms and actuated in pairs in accordance with the direction of movement of the bar 29. The controlling and controlled members consist of a pair of sliders 1, 3 movable along resistances 2, 4 connected in a Wheatstone bridge with the galvanometer 10 in the diagonal. For a considerable displacement of the slider 1, the current through the galvanometer is such that the contacts 13, 15 or 14, 16 remain closed in spite of the retraction of the armature 17 by the relay 20 or 21, and the motor 5 rotates continuously. When the displacement is small, however, the contacts 13, 15 or 14, 16 are rapidly made and broken and the motor 5 drives the slider 3 in a series of short steps to the position of correspondence. In this position, all four contacts of the reversing switch are closed to short-circuit the motor armature and bring it immediately to rest.
Patent GB-442213-A (GB)
Title: Improvements in and relating to that mechanism which is generally known as bowden mechanism
IPC: F16C1/26
Filed: 1934-06-26
Abstract: 442,213. Bowden mechanism ; flexible tubes; cables. DAVIES, F. P., and BOWDEN (ENGINEERS), Ltd., Victoria Road, Willesden Junction, London. June 26, 1934, No. 18871. [Class 80 (iii)] [See also Groups XXV and XXVIII] The flexible guide tube 1, Fig. 9, for a Bowden cable operated by pushing or pulling is formed of helically-interwound coarse-pitched radiallyinterlocking wires, the ends of the tube being restrained from axial movement in either direction. The cable 14 comprises a similar tube 17 surrounding a core comprising helicallyinterwound coarse-pitched round-section wires 16 surrounding a central wire 15. In Fig. 1, the tube is formed of wires 2, 3 which are alternately of round and of double-concave section. In Fig. 3, identical wires of the irregular section shown are used. In Fig. 7, wires 9 of round or other section are interposed between wires 11 which are channeled on one side and ribbed on the other ; alternatively, the wires 11 may be channelled on both sides. A number of layers of wires may be used. In this case, the wires of the various layers may be of different or opposite pitch, and the wires of some of the layers need not interlock. The outer layer of wires of the tube 1 may be enclosed in an open-coiled single wire or may be encircled by a series of spaced rings.
Patent GB-151780-A (GB)
Title: Improvements in steam generators
IPC: F22B13/06
Filed: 1919-08-01
Abstract: 151,780. Ruston & Hornsby, and Cunningham, J. Aug. 1, 1919. Shells; fire-boxes.-The shell of a locomotive type boiler is constructed of two plates which are pressed out to the required form and then joined together at their abutting edges. The dished plates a forming a boiler shell are welded together, the joints being strengthened by riveted butt straps c. The boiler is fitted with a seamless fire-box formed by pressing out a circular plate in three operations; first it is cupped, then it is pressed to a thimble form, and finally it is pressed to the finished form with a flat tube-plate e and a, dome-shaped crown f. In the final operation, the walls forming the tube-plate are thickened.
Patent GB-773260-A (GB)
Title: A hoeing implement for group thinning and weeding in plant rows
IPC: A01B39/18
Filed: 1955-07-01
Abstract: 773,260. Agricultural implements. SVENSKA SOCKERFABRIKS AKTIEBOLAGET. July 1, 1955 [July 17, 1954], No. 19127/55. Class 6(1). An implement for thinning plants in rows comprises cutting blades 4 mounted on an endless carrier member which is situated at an angle to the direction of motion of the machine so that the blades move obliquely backwards, the speed of the implement over the ground and of the knives on the carrier member being such that the knives gap the plants perpendicular to the plant rows. As shown, the carrier member comprises two endless chains mounted on sprockets 10 driven by means of chain and sprocket gearing from a shaft 14 which is connected by a universal joint 15 to a shaft 16 which is driven by chain and sprocket gearing 18 from a shaft 20 connected to the power take-off shaft of a towing tractor. The implement is mounted on a wheeled frame 1 provided with wheels 2 mounted on a cranked axle 3 which may be rotated by means (not shown) for adjusting the height of the frame 1.
Patent GB-482565-A (GB)
Title: Improvements in or relating to moulds for casting
IPC: B22D13/10
Filed: 1937-07-09
Abstract: 482,565. Casting ingots. TENNANT, W. J. (D³rener Metallwerke Akt.-Ges.) July 9, 1937, No. 19160. [Class 83 (i)] Casting-machines; moulds.-Chill moulds for making compact blocks and plates of large cross-sectional dimensions of aluminium or magnesium alloys are made of individual, divided layers of small height, which are built up in height during the casting process. At the beginning, the platform b is raised close to the ladle spout f. The first of the layers is set up. With the commencement of pouring, the platform b is slowly lowered, and the next layer half is placed in position. The speed of lowering is regulated to keep the liquid level the same. The separate layers are superposed until the desired block length is attained. At the conclusion of the pouring the platform b is raised, when the halves are removed from the solidified block. The joints in the rings are staggered at 90‹. The rings have collars k and grooves l with coned surfaces, Fig. 2, to effect centring. The layers have cooling fins o superposed to provide passages for cooling-air from an annular pipe p around the base m. The air outlets r are inclined towards the wall of the mould. The separate layers can be adjustably heated or cooled.
Patent GB-695518-A (GB)
Title: Selective oxidation of dihydroxy steroids
IPC: C07J41/00
Filed: 1951-08-15
Abstract: D 17 - 3,21 - dihydroxy - 11 - keto - 20 - cyanopregnenes are selectively oxidized at the 3-hydroxy grouping without affecting the hydroxy group in the 21-position by reacting said D 17-3,21 - dihydroxy - 11 - keto - 20 - cyanopregnene with N-halogen-substituted carboxylic acid amides or imides, e.g. N-bromoacetamide or N-bromosuccinimide.  The reaction may be effected using methanol, tertiary butanol, pyridine or a mixture of methanol and pyridine in the temperature range 18 DEG  and 40 DEG  C. and at a pH of 6 to 7.
Patent GB-619971-A (GB)
Title: Improved manufacture of optical glass
IPC: C03C3/089
Filed: 1946-06-27
Abstract: 619,971. Optical glass. CORNING GLASS WORKS. June 27, 1946, No. 19278. Convention date, Nov. 9, 1945. Drawings to Specification. [Class 56] A transparent optical glass having a refractive index (nD) of at least 1.60 and a dispersive index (v) greater than 202-100 nD and 111.4-46.6 nD contains 20-70 per cent by weight of BaO, 3-20 per cent of CdO (the BaO and CdO together being at least 40 per cent) and at least 12 per cent of either or both of SiO 2  and B 2 O 3  which however do not individually exceed 50 per cent. The glass preferably also contains at least one of Al 2 O 3  (0-30 per cent), ZrO 2  (0-10 per cent) and PbO (0-40 per cent) and may also contain alkali metal oxides (0-20 per cent) and small amounts not exceeding 5 per cent total of BeO, ZnO, As 2 O 3 , TiO 2 , &c. If B 2 O 3  is absent, alkali metal oxide and/or Al 2 O 3  should be present. In particular examples nD ranges from 1.6323 to 1.6697 and v from 50.7 to 46. Specification 613,718 is referred to.
Patent GB-201910-A (GB)
Title: Improvements in and relating to means for operating saw-blades, more particularly circular saws
IPC: B27B5/14
Filed: 1923-07-27
Abstract: 201,910. Knoller, E. Aug. 4, 1922, [Convention date]. Circularsaw machines.-Saw blades, particularly circular saws, are driven by two friction discs 33, 34, mounted on a shaft perpendicular to the saw blade, through friction rollers 30, 32, which are adjusted to alter the speed. Yielding bearings 26, 27, comprising helical grooves with balls or rollers, are provided for the driving discs; or a disengaging device may be used, such as a shear pin, operated by an excessive pressure. Alternatively, a hand adjustment of the rollers for contact pressure is used. The rollers have have hardened faces such as chilled steel, and scrapers 35 may be provided for the saw. In the Specification as open to inspection under Sect. 91 (3) (a) a modification with bevelled driving rollers is described, as shown in Fig. 1 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-410342-A (GB)
Title: Improvements in or relating to means for cleaning oils
IPC: C10M175/00
Filed: 1933-07-07
Abstract: <PICT:0410342/III/1> Used lubricating and other oils are re-conditioned by passing steam upwards through a body of the oil while finely divided hot water mixed with a purifying reagent descends through the oil. Suitably, water in a jacketed vessel B is heated by burners N so that for 2 hours steam rises through oil on the water but below a sieve G, and the steam condenses on the closed lid J and falls back in drops through the oil.  Tribasic sodium phosphate or other agent capable of coagulating the impurities liberated by the steam is then placed on the sieve G, and water from the jacket C is sprayed by a perforated pipe over the sieve to dissolve the phosphate.  After about 1 hour the apparatus is allowed to cool; sediment is run off through a valve L, clean oil through a valve K.  The jacket C extends round 3 sides of the vessel B, both the jacket and vessel are strengthened by swages F, and a false bottom H is provided in the vessel B.
Patent GB-747681-A (GB)
Title: Improvements in or relating to travelling wave tubes
Inventor: WILLSHIRE STANLEY JOHN
IPC: H03H2/00
Filed: 1953-07-13
Abstract: 747,681. Travelling-wave tubes. STANDARD TELEPHONES & CABLES, Ltd. July 13, 1953, No. 19355/53. Class 39 (1). A method of manufacture of a travelling-wave tube comprising a conductive helix connected at one end to a lead-in connection, and an electron collector electrode at the other end of the helix, not connected thereto during operation, comprises the method of outgassing the helix by joining the adjacent end thereof to the said collector electrode by means of a fusible link, connecting a source of helix heating current between the said lead-in connection and the collector electrode until the helix is outgassed, and then applying a current surge to fuse the said link. The tube shown comprises a helix 8 of nickelchromium wire connected at its ends via probe elements 9 and 10 to respective sleeve members 11 and 12 which constitute the inner members of quarter-wave chokes, corresponding outer members being fitted to the external input and output waveguides (not shown). The tube envelope 3 is closed at one end by a collector electrode 15 and carries a resistance coating 14 on its middle portion. The helix 8 is supported by means of three glass rods 13 secured to the sleeve members 11 and 12. Sleeve member 12 is secured to the second anode 17 of the electron gun 2 by a tube 18 which surrounds the electron beam. Sleeve member 11 is accurately located by means of a resilient crown member 19, Fig. 2, which seats inside a hollow portion 16 of the collector electrode 15. The crown member 19 is secured within one end of a glass tube 20 which slides into the end of the sleeve 11. A fusible link in the form of a strip 21 of coppernickel alloy is secured to the crown member 19 and passes along the inside of the glass tube 20 and round the end thereof, as indicated at 22, thus making contact with the sleeve 11 when the parts are assembled. To outgas the helix a battery 22 is connected between the collector electrode 15 and a lead-in connection in the base of the tube connected to the electron gun end of the helix. When outgassing is complete the helix is allowed to cool and the link 21 then burned out instantaneously by a sudden application of current.
Patent GB-1420029-A (GB)
Title: Screw press
IPC: B30B3/00
Filed: 1973-04-24
Abstract: 1420029 Screw presses FRENCH OIL MILL MACHINERY CO 24 April 1973 [24 April 1972] 19421/73 Heading B1C A screw press 10 has a shaft 11 and a surrounding cage divided into two longitudinally separable sections 15, 16 each section having mating faces 25, 26 to be clamped together. Each cage section has a dovetail flange part 30, 31 each of which has a clamping surface 37, 38. Clamps 35 have clamp surfaces 40 which engage surfaces 37, 38. Downward movement of clamp screws 45 forces the mating surfaces together. The cage sections are pivoted at 19 and 20 by cage-arms 21, 22. Motor 12 drives the shaft.