baber/WOPTO huggingface dataset:
Patent GB-361760-A (GB)
Title: Manufacture of artificial fibres
IPC: E02F5/10
Filed: 1931-03-06
Abstract: Artificial filaments having a tenacity of more than 2 grams per denier are made by spinning viscoses prepared from unripened alkali cellulose or from alkali cellulose which is ripened for a shorter period than the normal, while employing coagulating baths containing 10-30 per cent of sulphuric acid and not less than 30 per cent of ammonium bisulphate.  The ammonium bisulphate may be replaced wholly or partly by an equimolecular quantity of sodium or other bisulphate. It is advantageous almost to saturate the acid solution with bisulphate.  The baths may contain additions such as glucose, zinc sulphate or glycerine, and it is preferred to maintain the baths at 30-50 DEG  C. during the spinning operation. In examples, viscoses prepared from unripened or only slightly ripened alkali celluloses with the use of 30-60 per cent carbon disulphide or by kneading cellulose with caustic soda in a xanthate machine until swelling takes place and then adding 50 per cent carbon disulphide, are coagulated in water containing sulphuric acid, ammonium sodium bisulphates.  Specifications 10094/06, [Class 2, Acids and salts, Organic &c.], 166,294, 170,024, 174,961, 192,214, and 334,030, [all in Class 2 (ii), Cellulose &c.], are referred to.
Patent GB-471809-A (GB)
Title: Improvements in or relating to means for launching torpedoes
IPC: F41F3/08
Filed: 1936-03-09
Abstract: 471,809. Launching torpedoes. THORNYCROFT & CO., Ltd., J. I., and THORNYCROFT, SIR J. E. March 9, 1936, No. 7038. [Class 9 (ii)] A torpedo launching tube normally arranged in a fore-and-aft direction along or adjacent to a gunwale of a motor torpedo boat, is pivotally mounted at its rear end and means are provided at its forward end portion adapted to support the tube and to enable it to be swung outboard into a position making a small angle with the centre line of the vessel, in order that a torpedo may be fired substantially in the direction in which the vessel is pointing. In the construction shown in Figs. 1 and 4, the launching tube 2 is provided with a vertical pivot pin 3 mounted in bearings attached to the side of the vessel, and the movable support for the forward end portion comprises a vertical plate 11 having a hinge connection 9 with the tube, the lower edge of the plate being provided with a foot portion 12 which slides in a guideway 14, 14a secured to the deck. The support is caused to move by a nut 15 secured to the top of the plate 11 and engaging with a rotatable screwed traversing rod 16. The foot of the supporting member 12 is permitted the necessary sideways movement relative to the fixed guideway. In the modification shown in Fig. 8, the pivot 19 is arranged below and on the centre line of the tube, which is supported by a toothed rack 22 movable in a fixed guideway 23 by means of a pinion 24.
Patent GB-250202-A (GB)
IPC: D01D4/02
Filed: 1926-03-13
Abstract: 250,202. Schulz, W. April 6, 1925, [Convention date]. Apparatus for making filaments. - The projecting tubular members b constituting the spinning jets of a nozzle for the spinning of artificial silk &c. are of conical internal section tapering towards the outlet, and their outlet edges c are brought to a knife edge. By this construction, filament formation takes place more smoothly, and the jets cannot become obstructed by solution coagulating at the outlet. It is preferred to increase the size of the outlet orifice to 1.5 m.m. or more; this is particularlv desirable when for the winding-up of the threads, a high reeling speed is employed. Specification 249,490 is referred to.
Patent GB-386819-A (GB)
Title: Improvements in the drying of glass melting pots and other articles made from plastic material
IPC: F26B21/00
Filed: 1932-03-10
Abstract: 386,819. Drying systems. HERZOGENRATHER GLASWERKE BICHEROUX ET CIE, GES, Herzogenrath, near Aachen, Germany. March 10, 1932, No. 7190. Convention date, March 12, 1931. [Class 34 (ii).] In a process for drying glass-melting pots and other articles made from plastic material by means of circulating air without the artificial addition of moisture, the operation is performed in an enclosure having walls, for example, of ordinary masonry, which are permeable to moisture, the drying being commenced by heating the air in the enclosure to a temperature at which the articles lose water by intensive evaporation and shrink without the formation of cracks, while the relative humidity of the air remains substantially constant. Thereafter the temperature of the air is moderately increased and its humidity decreased at intervals, until finally no further shrinkage occurs, whereafter the remaining water can be expelled by a further more intensive increase in temperature. During the actual shrinking the articles may remain at substantially the same temperature. In a preferred embodiment, the heating stages are 'brought about by conveying the melting pots g. or other articles through successive separate chambers a in an enclosure, each of these - chambers corresponding to a particular drying stage. The chambers a, which are formed by side walls c, the roof d and the floor e, beneath which there are hollow spaces f, are separated from each other by sliding doors b, revolving shutters, or the like. The pots g are conveyed on trucks h having permeable tops i, for example of wire netting or cloth. The drying air is circulated by fans k or the like and is heated to the desired temperature by means of radiators m arranged behind vertical partitions l. The radiators m may occupy the entire upper portion of the space between the walls c and l. The heated air enters the chambers a through openings n in the floor e. When drying hollow articles, a proportion of the drying air, after passing over the radiators m, may be directed into a pipe o, the outlet end of which is introduced into the interior of the vessel. The pipe o may also be used for directing heated air on to hidden parts of articles having an angular or complicated shape. If the permeability of the walls of the enclosure is bad, fresh air can be sucked in through flaps p and used air exhausted through flaps q.
Patent GB-152572-A (GB)
Title: Improvements in cord-grips for electric lamp holders
IPC: H01R33/46
Filed: 1919-06-10
Abstract: 152,572. Hope, V. June 10, 1919. Coupling and capping.- A cord-grip for electric-lamp holders comprises two or more washers, the uppermost of which is held by the unturned edge of the upper part A<1> of the casing, the lowermost being pressed upwards by the contact-actuating spring C. In the holder shown, there are three washers D<1>, D<2>, E of which the middle one D<2> has separate passages for the two leads, the others each having a common passage for both leads. In a modification, the washers D<1>, D<2> are replaced by a single washer having two passages united at the top. Specification 143,406, [Class 44, Fastenings Lock &c.], is referred to.
Patent GB-1544819-A (GB)
Title: Antibiotic substances derived from antibiotic 67-694(rosamicin)and processes for their preparation
IPC: C07H17/08
Filed: 1976-02-24
Abstract: Derivatives of rosaramicin of the general formula <IMAGE> in which the meaning of the individual symbols is contained in Claim 1, are prepared by reducing an appropriately substituted compound of the general formula <IMAGE> or non-poisonous, pharmaceutically harmless acid addition salts of these compounds, by means of treating them with a reducing agent in the presence of acid, whereby the ester groups contained in the starting material are solvolysed, and isolating the compounds thus obtained in free form or as acid addition salts, or converting them into their esters. The novel compounds possess anti-bacterial activity.
Patent GB-1391371-A (GB)
Title: Method and apparatus for assembling composite container
IPC: B31B50/00
Filed: 1973-02-14
Abstract: 1391371 Making frusto conical containers OWENS-ILLINOIS Inc 14 Feb 1973 [14 Feb 1972] 7261/73 Heading B5D A machine for applying a sleeve-type over wrap to a cup-shaped shell comprises a roll 30 from which the sleeves are cut at station 28, a feed station 32 where the sleeves are fed to a mandrel 38 on a wheel 34 and wrapped therearound, holders 20 conveyed beneath the wheel 34 and into each of which a sleeve is inserted, and a cup feeding mechanism 42 where adhesively coated cups are placed inside the sleeves. The cut blanks 5 are fed by means 32 across a platform 60 and are formed downwardly by one of the mandrels 38 on wheel 34, guides 64 retaining each blank round the mandrel. A pair of star wheels (Fig. 7, not shown) complete the wrapping around the mandrel and wheels 70 strip the liner and drive it down into a holder 20. Abutting edges of the liner are of serpentine formation and to ensure correct alignment of those edges a cam 83 raises spiders 82 and thereby the liners from the bottoms of the holders and tamping cams 84, 86, 88 in a device 40 press each liner down again into its holder with its serpentine edges in correct register. The holders with sleeves therein next pass beneath the mechanism 42 in which the cups C are fed by a paddle wheel device 48 from a stack 46 on to mandrels 44 carried by an endless chain 92. As the cups pass from the stack towards the holders they have adhesive applied to their outer surface by a device 50 comprising a belt against which each cup is pressed, the belt receiving glue from a roller in a bath. An inclined cam surface 114 pushes the cups off the mandrels 44 and into the holders 20. At the next stage 56 a rotating cam 116 tamps each cup firmly into the sleeve and the completed cups are ejected. The sleeve may be of paperboard, metallic foil, or a plastics sheet material. The cups may be of polystyrene or polyethylene.
Patent GB-740167-A (GB)
Title: Improvements in tubulous vapour generators and in a method of firing such generators
Inventor: PILKINGTON PETER
IPC: F23C1/00
Filed: 1953-03-17
Abstract: 740,167. Pulverulent - fuel furnaces. BABCOCK & WILCOX, Ltd. March 17, 1954 [March 17, 1953], No. 7286/53. Class 51 (1). A steam generator comprises a first convectionheated tube bank, a pulverulent-fuel fired combustion space upstream of the said tube bank, a further combustion space and a further tube bank downstream thereof, gases flowing from the first tube bank being supplied to the second combustion space, fuel also being supplied to the second combustion space. As shown in Fig. 1 furnaces 1, 2, 3 have fuel burners 4, 5, 6 and convection heaters 10, 11, 12 respectively. Air is supplied in sufficient quantity at 7 to allow of complete combustion of the fuel supplied to all three furnaces, this method of burning the fuel, with excess air, preventing the presence of ash particles and oxide fumes at the entries to the convection tube banks 10, 11, 12. In a modification a first combustion chamber leads to two further combustion chambers disposed in parallel. In a further modification two combustion chambers lead to a common convection heater, the gases then flowing in parallel paths to two further combustion chambers followed by a common further convection heater. The quantities of fuel delivered to each burner may be automatically controlled by means responsive to the steam pressure and rate of flow from the heating section immediately following the combustion chamber into which that burner fires. In a further modification wherein a first combustion chamber and convection superheating section are followed by a second combustion chamber and steamgenerating sections, the gases then flowing to the stock, the quantity of fuel delivered to the burners in the first combustion chamber is automaticallycontrolled by the superheater temperature so as to maintain that temperature constant: the quantity of fuel supplied to the second combustion chamber is similarly controlled by the pressure in the steam-generating section so as to maintain that pressure constant. The quantity of air delivered to the first combustion chamber is automatically controlled in accordance with the amount of fuel supplied to all burners.
Patent GB-234226-A (GB)
Title: Improvements in sewage distributors
IPC: A01G25/09
Filed: 1924-03-22
Abstract: 234,226. Hartley, C. J., and Hartley, J. W. March 22, 1924. Travelling carriage apparatus.- Relates to sewage distributors of the type having wind-balanced distributing-arms which reciprocate in opposite directions over adjacent beds and are fed from a central trough. According to the invention, the arms are driven by a water-wheel E which is driven by the incoming sewage on its way to the beds and operates the distributors in known manner by a cable passing round a winding-drum J. Each arm has two distributing pipes Y provided with valves Z which are interconnected by a toothed wheel which engages toothed pinions on the valves, the arrangement being such that, as one valve is opened the other is closed. The operation of the valves is arranged to correspond automatically with a change in the direction of travel of the arms, although they can be operated singly. Adjustable pulleys are provided to act as tensioning-devices for the driving-cable. Auxiliary driving-means, such as an electric motor &c., may be used to assist the water-wheel. Specifications 29203/04 and 9661/12 are referred to.
Patent GB-734047-A (GB)
Title: Improved white oil
IPC: C10G19/06
Filed: 1953-03-17
Abstract: A process for producing stable white oils comprises contacting a petroleum oil distillate boiling between 250 DEG  and 500 DEG  F. with hydrogen and a hydrofining catalyst at 500-700 DEG  F. and a pressure of 50-500 p.s.i., and contacting the hydrofined oil with litharge at 250-400 DEG  F.  The catalyst specified is cobalt molybdate on alumina, and the oil may be steam stripped after hydrofining to remove H2S.  The litharge may be used as an aqueous solution, with or without lead acetate, or may be dissolved in acetic acid or aqueous caustic alkali such as sodium hydroxide; the treated oil may be washed with caustic soda and water.  The process is compared with various other treatments with caustic soda, hypochlorite and oxydipropionitrile, and with a treatment wherein the oil is redistilled over copper.
Patent GB-331840-A (GB)
Title: Improvements in the manufacture of wire rope fabric and nets therefrom
IPC: D04G1/00
Filed: 1929-03-07
Abstract: 331,840. Temple, J. H., and Chadwick, R. March 7, 1929. Wire fabrics particularly suitable for making cargo or package nets are formed of elongated gromets of stranded wire interwoven to form a mesh. As shown, four gromets 1 are interlocked at 1<a>. The gromets are formed or stretched to elongated loops, and the hidden splice of each gromet is on one of the straight sides of the loop.
Patent GB-350014-A (GB)
Title: Improvements in or relating to wave responsive devices
IPC: H04B1/10
Filed: 1930-03-06
Abstract: 350,014. Wireless receiving systems. ROBINSON, J., 29, George Street, Hanover Square, London. March 6, 1930, Nos. 7421, 22498, and 29004. [Classes 40 (iii) and 40 (v).] In a wireless receiver having the high selectivity described in Specification 344,869 and such that an interfering modulated transmission is reduced to substantially non-modulated form means e.g. one or more filters are provided to suppress the interference or the heterodyne beat effect produced thereby. The Figure shows a mechanical filter 12, 13 3 sharply tuned to the beat note and byepassing the electrical effects thereof, alternatively, an acoustic filter may be used. High-pass, low-pass or band-pass electrical filters may alternatively be employed and may precede or follow the receiver. The filters may be arranged in the intermediate frequency stages of a supersonic heterodyne receiver and. may be combined with the correcting means for the distortion produced by the high selectivity. Specifications 325,232, 337,049, [both in Class 40 (v), Wireless signalling &c.], and 347,638 are referred to.
Patent GB-476673-A (GB)
Title: Aeroplane wing flaps
IPC: B64C9/20
Filed: 1936-03-12
Abstract: 476,673. Aircraft wing-flaps. GRAY, W. E. March 12, 1936, No. 7490. [Class 4] A partially or fully balanced wake-forming wing-flap adapted to be nested into an aeroplane wing is hingedly divided along its span, and the rearmost or lowermost portion so formed is adapted to be angularly adjusted with regard to the remainder of the flap so that it may be turned out of the direct airstream, and into the shelter of the wake behind the remainder of the flap so as to cause a temporary over-balancing of the flap for the purpose of effecting operation of the flap. As shown, the lowermost section 5 of a flap comprising two or more hingedly connected sections 3, 5 is divided by the hinge 8. The section 5 is adapted, when collapsed, to lie with its free edge towards the rear of the wing. Each lower section is connected to the wing by a drag link 2. The control effort for the portion 7 is led through levers lying in the plane of the flaps, and push and pull rods lying along the hinges. The portion 7 may be operated by an inclined hinge as described in Specification 301,199, [Class 4], a Bowden wire control or by a Simmonds- Corsey control. Vibration-dampers may be provided to minimize vibration of the flap and the flaps on opposite wings may be interconnected to move together. The portion 7 may be rearwardly spaced from the remainder of the flap 5. Specifications 147,034, [Class 4], and 457,114 are referred to.
Patent GB-504069-A (GB)
Title: Engine with change speed power transmission on both sides
IPC: B64D27/00
Filed: 1938-03-10
Abstract: 504,069. Driving-gear; pumps. COTAL, J. March 10, 1938, No. 7491. Convention date, March 11, 1937. [Class 7 (ii)] [Also in Groups XXIV and XXXIII] On an aircraft, an electromagnetically controlled epicyclic change-speed gear is arranged on each side of an engine A, the one gear, C, driving a screw-propeller E, whilst the other, B, drives a compressor D, supplying the engine cylinders. In Fig. 1, a sun-wheel 8, integral with the compressor-impeller 9a, is driven at either of two increased speeds by holding either of two annuli 6, 7, engaging stepped planets on a carrier 1, connected to the engine-shaft 2 through a torque-damping coupling 3. Electromagnetic brakes 12, 14 hold the annuli. The screw-propeller E, at the other end of the engine, is fast to a carrier 16 which is driven from an annulus 22, secured to the engine-shaft 2, at one reduced speed when an electromagnetic brake 25 is applied to a small loose sun-wheel 20, and at a higher, but still reduced, speed when the brake 25 is released and a larger sun-wheel 21 is automatically prevented from backward rotation by a one-way detent 23. In this speed " freewheeling " of the propeller is possible if the engine A stalls. A modification, Fig. 2, not shown, employs an additional electromagnetic brake instead of the one-way detent 23. In a further modification; Fig., 3 (not shown), the propeller is driven through a series arrangement of a two-speed epicyclic train and a fixedratio epicyclic reducing train. The two-speed train gives solid drive when its reaction sunwheel is clutched to its driving annulus, and reduced drive when braked, the fixed-ratio train being effective in both cases. The change-speed gear C, driving the propeller in Fig. 1, is lubricated by a pump 43 always driven by the propeller shaft. The changespeed gears B, C are controlled by switches 35, 40, and there is an interconnecting switch 42, which, when closed causes the compressor drive B to be put in its lower ratio when the propeller drive C is changed to its lower ratio by moving the switch 40, even though the switch 35 is not operated. In the modifications using two brakes, or a brake and clutch in the propeller change-speed gear, there are two switches such as 42 connecting the pairs of contacts of the switches 35, 40, so that, simultaneous control of both gears is possible from either switch 35 or 40.
Patent GB-383843-A (GB)
Title: Improvements in apparatus for recovering gold, silver, platinum and the like, from gravel, sand and other deposits
IPC: B03B5/08
Filed: 1932-03-14
Abstract: 383,843. Washing granular material. MITCHELL, B. F., 202, Victoria Arcade, Queen Street, Auckland, New Zealand. March 14, 1932, No. 7492. [Class 82 (ii).] Apparatus for recovering gold, silver, platinum, &c. from river gravel, sand, or other deposits comprises a rotary screen, a vibrating sluice box containing an endless conveyer and pivotally mounted so that the box and the upper run of the conveyer may be set at the desired angle, and a sloping screen, mounted below the rotary screen and above the sluice box, which is connected to and vibrates with the sluice box. The material is fed into a hopper 3 and passes to a rotary screen 4 from which coarse particles are discharged from a shoot 5 and the finer particles pass on to an inclined vibrating screen 6 which is connected to a sluice box 9 containing a conveyer belt 9a, the box being pivotally mounted and vibrated by rotation of an unbalanced cylinder. The particles passing through the screen 6 are led by a shoot 10 and a deflector plate 32 to a hopper 34 feeding the sluice box. Water is supplied to the hopper 34 and to the upper end of the sluice box. The upper run of the conveyer, which is made of rubber, coco-nut matting, corduroy, or canvas to retain the concentrates, travels along the box against the flow of water and the lower run is sprayed with water and passes through a bath 37 where the concentrates are deposited. The sluice box is mounted on two shafts 11, one near each end, which are secured to brackets 12 on the box and are supported in coiled springs 13a mounted in bearings 13 carried by stringers 14 pivoted to the main framework at 14a. To enable the sluice box to be vibrated two transverse channel irons 15b secured to the trough carry connecting brackets 15a, Fig. 6, on which are mounted bearings 15 for a shaft 33 carrying an unbalanced cylinder 16 which has a small central driving portion 19 and larger portions at each end containing weights 18. The various moving parts are driven by a motor 23, two alternative systems of connections being described. The upper run of the endless conveyer is supported on small rollers 35b projecting through the bottom of the sluice box.
Patent GB-429395-A (GB)
Title: Improvements in electric cookers and hot plates
IPC: F24C15/10
Filed: 1934-03-09
Abstract: 429,395. Electric hot-plates. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, HUMPHREYS, O. W., and HUNT, J. R., c/o General Electric Co., Wembley, Middlesex. March 9, 1934, No. 7595. [Class 39 (iii)] An electric cooking hob comprises at least two hot-plates, the temperature gradients from point to point of the surface of at least one of these hot-plates being substantially different from those at the corresponding points of the surfaces of the others. In one construction a central plate 1 is evenly heated to a temperature suitable for boiling operations and other plates 2, 3, 4, and 5 are provided with heating elements which raise areas 6 to simmering temperatures ; the other parts of the latter plates are heated only by conduction along the plates from areas 6, and are at lower temperatures. The plate 1 is carried on a tripod 12 and 13 resting on bars 15 and 16. The plates 2, 3, 4, and 5 and these bars are supported on a frame formed of members 10 and corner posts 9.