baber/WOPTO huggingface dataset:
Patent GB-381634-A (GB)
Title: Improved method of and means for changing the tuyeres of blast furnaces
IPC: C21B7/16
Filed: 1931-07-25
Abstract: 381,634. Tuyeres for blast furnaces. BROSIUS, E. E., 6550, Beacon Street, Pittsburg, U.S.A. July 25, 1931, No. 21292. [Class 51 (i).] The tuyeres of blast furnaces are changed or renewed without shutting off the blast by supporting a new tuyere exteriorly of the furnace and then moving it into position. The operation is effected by apparatus shown in Fig. 1. The tuyere 4 is supported in a cylindrical seat in the cooler 3 and is supplied with blast from the main 11 and pipe 10 forming an extension of the tuyere-changing chamber A, B. Within the section A of the tuyerechanging chamber is a tuyere support 6 provided with an inlet 9 for the blast which is directed towards the tuyere 4 by the curved wall 7. The tuyere support 6 also supports the water-cooling pipes 15 which engage with the tuyere 4. When the tuyere is to be replaced, the support 6 and the pipes 15 are withdrawn into the section B of the tuyerechanging chamber and the section B is closed at its inner end by a valve (not shown). The cover 17 of the section B is then removed and the support 6 also removed and a new tuyere attached to the cooling pipes and the support is reinserted in the section B, the cover 17 restored and the valve at the inner end of section B opened, after which the new tuyere is pushed into place causing the old tuyere to be displaced. If desired the old tuyere may be withdrawn with the support 6. Fig. 4 shows a modification in which the outer section B<1> of the tuyere-changing chamber may be removed when a new tuyere has been inserted. The inner section A<1> is provided with a flange 31 which co-operates with a flange 36 on the section B and between the two flanges a seat is provided for a sliding valve (not shown) which is maintained airtight by springs on the bolts coupling the two flanges. The section B<1> is held in position by lugs 35 on the flange 36 engaging with ears 34 on the section B. The tuyere changing operation takes place in the same manner as described above, but when the section B is removed the cooling pipes 43 are replaced by lateral cooling pipes connected through a ball valve with the pipes 42 in the tuyere support 23. The section A<1> is closed at the outer end when the section B<1> is removed by a cover plate having an inspection opening. A further modification is described and illustrated in which the tuyere support is withdrawn and reinserted by a screwed shaft and gearing.
Patent GB-1510698-A (GB)
Title: Speed governors
IPC: F02M41/12
Filed: 1975-05-20
Abstract: 1510698 Injection pump governor ROBERT BOSCH GmbH 20 May 1975 [12 Oct 1974] 21394/75 Heading G3B A fuel pump governor has a lever 33 acted on by a governor member 47 and coupled to a control member 25 on the same side of a pivot 40 the axis of which is normal to the line of action of the control member and outside a plane common to the lines of action of the governor and control members, there being means viz an intermediate lever 35 pivoted on journals 41 for adjusting the orientation of the axis of pivot 40. The fuel pump piston 8 is operated by cams 3 and rollers 5 whilst being rotated from shaft 2 so as to deliver to conduits 20 via valve 16 and distributed groove 18. A piston 66 loaded by a feed pump 69 acts on the  roller carrier 65 to effect timing adjustment. Relief bores 26, 61 in the piston compensate for timing advance during starting.
Patent GB-1340404-A (GB)
Title: Sodium tripolyphosphate
IPC: C01B25/41
Filed: 1971-04-19
Abstract: 1340404 Sodium tripolyphosphate hollow spheres CHEMISCHE WERKE ALBERT AG 19 April 1971 [17 Feb 1970 16 Jan 1971] 21438/71 Heading C1A Hollow spheres of sodium tripolyphosphate are obtained by spray-drying a solution of mono- and disodium phosphate having an Na/P atomic ratio of about 5/3 to form a product containing >10% by wt. condensed phosphate (preferably #40%) e.g. as sodium tripolyphosphate, calcining (e.g. at a temperature of 300-500‹ C.) and then contacting with moisture at a temperature of <80‹ C. to form a product having an ash loss of 0À2-7% by wt. at 500‹ C. The starting solution may contain a soluble alkaline earth sulphate, e.g. calcium or magnesium sulphate, in an amount 0À04-0À6% as SO 3  by wt. or boric acid and/or an inorganic boric acid compound, e.g. borax, in an amount 0À004-0À04% by wt. of product. The starting solution may be a wet phosphoric acid solution and also a condensed phosphate may be added to the solution. The moisture is preferably added by either treating the calcinate with moist air e.g. at 100% R.H. in a fluidized bed or by leaving the calcinate to stand over water. The product may have a particle size of 150-1000Á and a bulk density of 523-613 g/l.
Patent GB-393115-A (GB)
Title: Improvements in and relating to the production of rubber-containing products of a mortarlike nature
IPC: E01C7/30
Filed: 1932-07-29
Abstract: A rubber composition of a mortar-like nature suitable for use as a building material, as a floor covering, for road-making or for soling shoes, comprises rubber latex, mixed with sand, relatively coarse, preferably with the addition of a small amount of cement.  In examples sand which passes sieves of 10 and 30 mesh per linear cm. is used.  Sulphur and the usual accelerating and p  preserving agents are also added, vulcanization being effected by a hot smoothing iron. Alternatively vulcanized latex prepared by the Schidrowitz process may be used but it is stated that products so obtained have less strength than those obtained from unvulcanized latex.  The preferred latex is concentrated and prepared according to Specification 219,635, [Class 70, Indiarubber &c.].  If the above composition is to be used for road-making it is preferably applied to a rough concrete foundation and consolidated by rolling.
Patent GB-1342648-A (GB)
Title: Multi-seat assemblies
IPC: B60N2/24
Filed: 1971-04-19
Abstract: 1342648 Multiple seats SOC D'ETUDES ET DE DEVELOPPMENT DES AEROGLISSEURS MARINS TERRESTRES ET AMPHIBIES 19 April 1971 [19 Feb 1970] 21471/71 Headings A4H and A4J A multi-seat assembly, suitable for aeroplanes and gliders, comprises a body shell 1, providing the seating surfaces and backs of a number of seats, a base member 2, and one or more legs 3, all formed separately of sheet material, e.g. metal, plastics, wood and joined together by welding, riveting, or adhesive. The body shell comprises individual seating portions 4 and backs 5, separated from the adjacent seating and back portions by ridges (7) Fig.2 (not shown); slits are provided in the ridges for safety belts. The base 2 has its upper edge flanged at 9 to fit the seat bottom, and a collared opening to receive the leg 3, which also has a flanged upper edge. The interior of the base may be used for storage, e.g. of lifebelts, an opening, which may have a door being provided, e.g. in its underside, for access. The seating may have a covering.
Patent GB-796735-A (GB)
Title: Production of silicon dioxide
Inventor: EVANS ARTHUR WALLACE
IPC: C01B33/18
Filed: 1955-07-25
Abstract: Silicon dioxide is prepared by the oxidation of silicon tetrachloride vapour in a fluidized bed of inert solid particles. In the preferred process, the particles, which may be of silica, alumina, zircon, or nitrile, have sizes from 40m  to 1000m , and the bed is maintained at a temperature of 500 DEG  to 1200 DEG  C.  After passing through the bed, the products, silicon dioxide and chlorine, are cooled and separated, the chlorine being used to prepare further silicon tetrachloride.  The silicon dioxide may either be washed with water, or treated with steam above 250 DEG  C.
Patent GB-320162-A (GB)
Title: Improvements in tankless gasholders
IPC: F17B1/013
Filed: 1928-07-25
Abstract: 320,162. Melbourne, R. J., and Beard, G. F. H. July 25, 1928. Holders.-In a tankless gas holder of the kind in which a piston or a diaphragm 1 slides in a shell or casing tilting of the piston is prevented by providing one set of guide rollers 2 on the periphery of the piston engaging fixed guiles 3 which may be formed by the shell or casing itself and a second set of guide rollers 5 engaging a horizontally displaced guide such as a central pillar 6. Suitable packing 4, 7 is provided between the piston and shell and pillar. The piston may consist of a cone, dome, or a disc having on its upper surface a braced structure supporting the central guide rollers.
Patent GB-184473-A (GB)
Title: A process for purifying liquids
IPC: B01D15/00
Filed: 1922-08-09
Abstract: Liquids are purified by treatment with a precipitate of an insoluble material formed outside the liquid with the aid of heat and afterwards removed by filtration.  The precipitates are especially effective in removing substances that have a chemical similarity to them, e.g. calcium phosphate will remove calcium compounds and phosphates, calcium carbonate will remove calcium compounds and organic compounds.  The precipitate can be produced in any known way and at a higher or lower temperature as a coarser or finer precipitate is required.  The process may be used in combination with other known processes, e.g. decolorizing substances, such as decolorizing carbon or bleaching earth, may be employed along with the precipitate.  The precipitate is preferably used when freshly precipitated, but it may be revivified after use and reused.  When this is to be done the material treated is preferably first freed from coarse impurities by filtration, decantation, or washing with dilute acid or alkali. The precipitate is then dissolved wholly or in part and reprecipitated.  It may first be ignited, or washed with a dilute acid or alkali, or these methods may be used in combination. The liquid may be treated with an electric current during purification, or catalysts or electrolytes may be added.  When this process is used for treating oils and fats the precipitate is first washed with alcohol or alkali.  The Specification as open to inspection under Sect 91 (3) (a) mentions the application of the invention to mineral oils and greases, benzine and glycerine.  This subject-matter does not appear in the Specification as accepted.
Patent GB-922072-A (GB)
Title: Improvements in continuous fasteners
IPC: A44B19/32
Filed: 1958-07-07
Abstract: 922,072. Sliding-clasp fasteners. G. DOELTER. July 7, 1959 [July 7, 1958], No. 21731/58. Class 44. In a sliding clasp fastener comprising a row of elements 12 secured to each of two tapes 10, 11 of flexible material to be joined together, each element has a root portion 15 for securing it to one of the tapes, a shank 14 and a head 13; the heads 13 of each row of elements fit between the shanks 14 of the other row of elements, when the tapes 10, 11 are joined together, to engage behind the heads 13 of the other row of elements and to overlie the root portions 15 of the latter, so as to preclude disengaging movement of the elements in a direction perpendicular to the plane of the tapes 10, 11 and to hold the latter against relative pivotal movement about a longitudinal axis. The shanks 14 are joggled so that the heads 13 and root portions 15 lie in parallel planes which are separated by the thickness of the material of the elements, and the root portions 15 are extended and bent to form channels 16 in which the edges 17 of the tapes 10, 11 are received, clamped and secured by rivets 18 to form at 22 a pressure-right seal between the tapes 10, 11. Specifications 723,998, 769,535, 769,536 and 769,537 are referred to.
Patent GB-1223993-A (GB)
Title: Improvements in or relating to fluid flow devices
IPC: A61M16/00
Filed: 1967-05-10
Abstract: 1,223,993. Jet pumps. W. WATSON & SONS Ltd. and J.A. BUSHMAN. May 3, 1968 [May 10, 19671, No.21755/67. Heading F1E. A bi-stable flow jet pump with reversible direction of flow, e.g. for use as a medical ventilator for passing air or gas to or from a patient, comprises an annular inlet 32 for the inducing air or gas from supply 45, the direction of flow along inlet surfaces 36 being determined by the pressure differential between connections 30 and 31, or control pressures applied to annular control passages 28 on either side of inlet 32. With atmospheric pressure in both control passages, the inducing fluid follows the right-hand surface 36 and induces flow from connection 31 to connection 30. If the control pressure at control port 14 is increased above that at control port 12, the inducing flow is re-directed to follow the left-hand surface 36, and induces flow from connection 30 to connection 31. For use as a medical ventilator, connection 30 is connected to a patient by a mask, and the control ports 12 and 14 may be connected to the patient's airway through a connecting device 46 or to a timing device for alternately blocking ports 12 and 14, to switch the direction of flow. Connection 31 is connected to a supply 43 of air, oxygen or anaesthetic gas, or to exhaust.
Patent GB-379487-A (GB)
Title: Improvements in cleaners for the creel boards of spinning frames and the like
IPC: D01H11/00
Filed: 1931-07-30
Abstract: 379,487. Cleaning creels. ECLIPSE TEXTILE DEVICES, Inc., Elmira, New York, U.S.A. July 30, 1931, No. 21767. Convention date, Aug. 8, 1930. [Class 120 (iii).] Spinning frame and like creel boards are cleaned by a wiper which is resiliently attached to an endless belt passing around pulleys mounted on the creel board. Each wiper 34 is attached to the endless belt 27 by means of a spring 37, which draws the belt into an arcuate recess formed in the wiper, the recess being of the same curvature as the pulleys 24, 28 around which the belt passes. This arrangement helps to maintain the belt taut and also allows the wipers to pass easily round the pulleys 24, 28. The pulley 24 is rotated under machine power by belts 21, 14 from the shaft 6. The wipers have felt strips 35 on their under faces, Fig. 5, which project inwardly at 31 to wipe the portion of the board lying within the endless belt, and are preferably provided with felt pads 36 at the portions against which the belt bears.
Patent GB-1045461-A (GB)
Title: Improvements in or relating to the finest grinding of starch-containing flours
IPC: B02C9/00
Filed: 1964-05-27
Abstract: 1,045,461. Finest grinding of flours. SOC. ANON. LAVASTO. May 27, 1964 [May 27, 1963], No. 21954/64. Heading A2Q. A flour obtained from wheat, rye or similar starch-containing cereals or seeds is subjected to the finest grinding, e.g. to yield a flour of which approximately 80% has a particle size less than 55 microns, by being passed between finely polished, smooth rolls, each having a hard surface of ultrafine crystalline structure, e.g. of steel or had white cast iron, which rolls rotate at substantially the same peripheral speed.
Patent GB-300938-A (GB)
Title: Improvements in or relating to cigarette making machinery
IPC: A24C5/24
Filed: 1927-08-20
Abstract: 300,938. Ruau, F. F., and Molins Machine Co., Ltd. Aug. 20, 1927. Cigarette-making machines.-For applying adhesive to a travelling web of paper in a machine of the continuous-rod type, the adhesive, contained in a cylinder 1, is fed continuously by a plunger 5 through a flexible pipe 7<a> to a nozzle 20<a>; this adjoins a grooved roller 21 from which the wheel 22 effects the transfer to the paper 23. The cylinder 1 is removably attached to the standard by a bayonet joint 3, and the movement of the plunger 5 is transmitted from an enginedriven shaft 8 through worm and wheel gearing. The last wheel 14 of the train is pinned to the sleeve 15 which at its upper end is in toothed engagement with the lower end of the nut 18 splined to the spindle 6. A shearing pin or like device is fitted to the pulley 10 to prevent damage to the mechanism in case of obstruction.
Patent GB-627703-A (GB)
Title: Improvements relating to the manufacture of shaped profiles
IPC: B22C9/06
Filed: 1946-07-24
Abstract: 627,703. Making turbine blades &c. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and MURTHWAITE, H. H. July 24, 1946, No. 22053. [Classes 83 (i), 83 (ii) and 83 (iii)] Casting composite articles ; milling.-In a method of making a profiled article such as a two-stage turbine blade 5, the body of the article is held for machining operations by means of one or more blocks 9a or 9b of a material having a lower melting point than the material of the article and which are cast on to the body of the article, and which have one or more datum lines or surfaces with reference to which the said machining operations are carried out. The mould for casting the blocks comprises a base 23 and movable and fixed jaws 1, 2. When the jaws are together, four gauges 4 locate the body and divide the mould into separate compartments 8 corresponding to the blocks to be cast. In the form shown two blocks are cast, one at each end of the blade and they are of cut-away form to diminish the weight. Each block has faces A1 or B1 perpendicular to the axis of the blade and faces A2 or B2 parallel to the axis and to a longitudinal datum groove 18. When the machining of the blade'has been completed, the blocks are removed by melting.
Patent GB-194327-A (GB)
Title: Improvements in or relating to safes, strong-rooms and the like
IPC: E05G1/024
Filed: 1921-08-19
Abstract: 194,327. Grant, J. C. Aug. 19,1921. Safes.-In the walls of a safe are embedded independent breakable vessels a, containing material of a defensive nature, which may be lachrymatory, or capable of staining; also reinforcing members b, of triangular or streamline section, so arranged as to deflect a boring tool towards the vessels d. The reinforcing members may also be arranged horizontally, and their ends are tapered so as not to present a flat surface to a penetrating tool. The lock j, Fig. 5 is surrounded by vessels k of the same nature as the vessels d, and contain a simi-. lar defensive material. An abrasive may be mixed with the concrete of the walls and door in known manner. Reference has been directed by the Comptroller to Specification 592/11.
Patent GB-1114773-A (GB)
Title: Production head and method of installing same
Inventor: WAKEFIELD CHARLES EVANS
IPC: E21B33/035
Filed: 1965-05-25
Abstract: 1,114,773. Boring and completing under water wells. RICHFIELD OIL CORPORATION. 25 May, 1965, No. 22140/65. Heading E1F. An underwater production head comprises an outer tubular member 30 having a side outlet 42 for production fluid, an inner tubular member 31 having an outlet 64 in register with the outlet 42, and a hanger 70 for supporting the member 31 within, and latching it to, the member 30. The member 30 is made in two parts to permit removal of this upper part after cementing the lower part, and an outlet 40 is provided leading to the annulus between the casing and the production tubing. A third outlet from the member 31 may be provided, the outlet being connected to a string within the production tubing and suitable for gas lift. A guide 20, conductor 24, and surface casing 26 are cemented into a well 14 (Fig. 3). A lower portion 59b of the casing is lowered through blow out preventers 92 and cemented in the well. The preventers are removed and the member 30 carrying the upper portion 59a (Fig. 5) of the casing is lowered into the surface casing and cemented in the well. The blow out preventers are replaced on top of the member 30, a marine conductor 118 is fixed to the preventers, and the casing drilled out. The production tubing 54 is suspended on the member 31 and lowered through the preventers until the member 31 seats on, and latches to, the member 30. Valve controlled flow lines are connected to the outlets, the blow out preventers are removed, and the upper end of the member 30 is closed with a plug 88. The bore of the head may be enlarged to permit drilling without the need for installing a production head after drilling.
Patent GB-168068-A (GB)
Title: Improvements in or relating to double acting pumps
IPC: F04B5/02
Filed: 1921-08-20
Abstract: 168,068. Dantin, H. Aug. 21, 1920, [Convention date]. Valves, arrangement of; valves, facilitating removal of.-In a double-acting pump, the suction valves F, F<2> and delivery valves F<1>,, F<3> are mounted in a X-shaped holder G removably mounted in the valve-chest above the cylinder and held in position by a bolt and nut &c. When used for pumping gases, the hinged valves are replaced by mushroom, conical, or ball valves. Several pump cylinders may be combined with a single valve-holder.
Patent GB-1375933-A (GB)
Title: Self-modulated clutch for vehicle drive transmissions
IPC: F16D43/284
Filed: 1972-05-11
Abstract: 1375933 Friction clutches, clutch-brake combinations CATERPILLAR TRACTOR CO 11 May 1972 22192/72 Headings F2C and F2L In a friction clutch for a motor vehicle wherein clutch plates 29, 31 are engaged by centrifugal pressure of a liquid 43 in a chamber 44 fast with a driving flywheel 16, a piston 42 subject to the centrifugal pressure acts through a spring 48 on a clutch presser plate 37 against the bias of a clutch disengaging spring 51. A stop 49 limits clutch engaging movement of the piston 42 and thus the maximum clutch engaging pressure. Liquid is supplied to the chamber 44 through ducts 45 in a clutch output shaft 17. The clutch may be disengaged and whilst the centrifugal pressure is above the predetermined value by supplying pressure fluid to a clutch disengaging servo 53 which acts through rods 56, 61 to relieve the pressure of the spring 48 from the presser plate 37. The clutch output shaft 17 may be stopped by supplying pressure fluid to a servo 68 which engages a brake 64. In Fig. 5 a first clutch 79 between an input flywheel 74 and an output shaft 72 is engaged by centrifugal pressure in a liquid 98 which acts through a piston 96 and spring 101 on the presser plate 99 and a second clutch 132 between the flywheel 74 and a second output shaft 73 is engaged when the first clutch is disengaged. The first clutch 79 is disengaged and the second clutch 132 engaged by supplying pressure fluid to a servo 113 which acts through rods 117 to move left a plate 119. The plate 119 moves the presser plate 99 left to disengage the first clutch 79 and engages the clutch plates of the second clutch 132. The torque capacity of the second clutch 132 is determined by the centrifugal pressure of a liquid acting on a piston 97. The first output shaft 72 may be stopped by a brake 123 in which is engaged by supplying pressure fluid to a servo 127. In Fig. 6 (not shown) the clutch and brake operating servo are combined.
Patent GB-203694-A (GB)
Title: A method of automatically and mechanically cutting grooves or the like of optional shape
IPC: B23C3/34
Filed: 1923-09-05
Abstract: 203,694. Jorgensen & Co., A. Sept. 6, 1922, [Convention date]. Indexing.-In a process of cutting curved grooves, in cylindrical, spherical, conical, or other surfaces, wherein the work-piece is clamped to a ratchet-wheel which is rotated intermittently by a pawl through equal angles in the same direction simultaneously with successive strokes of a cutting-tool, the work remaining stationary between its intermittent movements during the return stroke of the tool and pawl, the number of teeth in the ratchet wheel is a prime number multiplied by two and the pawl first takes an odd number of teeth at each stroke until as many grooves have been cut as there are teeth in the ratchet-wheel, and then an even number of teeth so that every alternate groove will be operated upon a second time. Variations in the curvature of the grooves are made by varying the angular displacement of the work during the cutting strokes. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a process of cutting straight or curved grooves wherein the number of teeth in the ratchet-wheel and the number of teeth passed over during each advancing movement of the pawl have no common factor. This subject-matter does not appear in the Specification as accepted.