baber/WOPTO huggingface dataset:
Patent GB-713600-A (GB)
Title: Digging and carrying scraper
IPC: E02F3/64
Filed: 1952-07-30
Abstract: 713,600. Bowl-type earth scrapers. EUCLID ROAD MACHINERY CO. July 30, 1952 [May 14, 1952], No. 19272/52. Class 68(1) In a bowl-type earth scraper, the separate mechanisms for raising and lowering the bowl, the apron, and the ejector are so designed that the power units 50, 51, 52 and 70 are identical. The draft yoke 22 is connected by a universal hitch to a traction means and comprises two diverging goose neck arms 40, 41 secured to a torque tube 43 that extends lateral beyond the arms 41 to be rigidly secured to arms 44 pivotally connected at 44f to the sides of the bowl. At the centre of the torque tube 43 there is pivotally mounted three single-acting hydraulically-actuated piston-cylinder units 50, 51, 52 which act on levers 56, 57, 58 pivoted about a rod 60 transversely secured to the yoke. The arms 56, 58 are each connected by a lost motion connection to a rod 62 pivotally connected to one side or the other of the bowl which is thus raised or lowered on actuation of the units 50, 52. On the arm 57 is mounted a pulley 64 about which passes a cable 65 that is dead end to 66 on the apron and on the yoke at 67. Thus the movement of the apron is controlled by unit 52 and because of the pulley 64 and cable 67, the apron is moved at twice the speed for twice the distance for unit movement of the unit 52 as compared with movement of the bowl for unit movement of the units 50. 52. The mechanism actuating the ejector is designed to give it an acceleration over approximately the entire distance from the retracted position to dumping position, the unit 70 moving at a constant rate. The cylinder of the unit is pivotally mounted on the bowl frame. and the piston is pivotally connected to an arm 72 that can rotate about the pivot 72a on the bowl and has a roller 73 moving over a wear plate 74 on the ejector to move same on actuation of the unit to give the motion referred to above. When in the dumping position, the ejector is approximately balanced over its pivotal connection 34a with the bowl and is urged to return by a spring 76 so connected to the ejector and the bowl that it is only tensioned during the last portion of the motion of the ejector to the dumping position. The parts are so positioned as to give to the operator, positioned on the traction means, the maximum visibility of the bowl during all the working operations.
Patent GB-530764-A (GB)
Title: Improvements in or relating to electromagnetic relays
IPC: H01H50/24
Filed: 1939-07-03
Abstract: 530,764. Electromagnetic switches. IGRANIC ELECTRIC CO., Ltd., TAYLOR, J. R., and WRIGHT, S. R. July 3, 1939, No. 19303. [Class 38 (v)] In an electromagnetic relay the armature 5 is mounted on a spindle 4 which carries by a slipping-clutch arrangement a flywheel 9. This produces a retarded action, and the clutch allows the flywheel to move on after the spindle has been checked. The spindle 4 carries a cam 3 which operates a contact spring and the spindle is biassed by an arm 7 having an adjustable weight 8, the 'stroke' of the arm being determined by an adjustable stop 19. The cam 3 is also adjustable on the spindle 4. The armature 5 co-operates with pole pieces 6, Fig. 4, the curvature of which is eccentric so that the armature when attracted moves from the full-line to the dotted-line position, where it is nearest the poles 6.
Patent GB-310917-A (GB)
Title: Improvements in twyers for use in furnaces with underfeed stokers
IPC: F23K3/12
Filed: 1928-07-04
Abstract: 310,917. American Engineering Co., (Assignees of Hughes, W. J.). April 13, 1928, [Convention date]. Fire-supporting tuyeres.-The tuyeres forming part of the fuel surface of underfed stokers have air discharge passages terminating short of the edge of the toe portions and the upper tuyere comprises a base portion in communication with the wind box and having a vertical duct discharging upwardly and forwardly. The main tuyere blocks 5, shown in Figs. 2 and 3, may be provided with interlocking lugs 7, 12 adapted to engage with holes 6, 13 in the tuyere immediately below as described in Specification 19165/14. The undersurface of the tuyere nose is provided with ribs 14, which may be of decreasing pitch towards the centre of the tuyere, terminating short of the edge of the nose as indicated at 15. The upper tuyere consists, as shown in Fig. 5, of a horizontal base portion 18 communicating at 19 with the wind box and provided with a vertical duct 20 discharging through inclined slots 22. The tuyere is bolted by means of a lug 23 to the main tuyere 5.
Patent GB-1526673-A (GB)
Title: Voice signal filtering device
IPC: H03H7/01
Filed: 1977-05-09
Abstract: 1526673 Active filters THOMSON-CSF 9 May 1977 [11 May 1976] 19412/77 Heading H3U A filter comprises a pre-emphasis circuit, a charge transfer filter and a de-emphasis circuit connected in cascade.
Patent GB-700356-A (GB)
Title: Polymeric materials and articles produced therefrom
Inventor: FREW GATES WILLIAM ELLIOTT
IPC: B29C39/00
Filed: 1950-08-04
Abstract: The tendency of polymers of a compound containing at least one CH2=C< group to accumulate electrostatic charges is reduced by incorporating in the polymeric material, e.g. as an aqueous paste, a sulphated long chain alcohol having from 10 to 32 carbon atoms per molecule, or a salt thereof, by fluxing in a suitable mixer or milling on malaxating rolls.  Polymers mentioned are polyvinyl chloride, polyvinylidene chloride, polystyrene, polymethyl methacrylate, polyethylene, chlorinated polyethylene, copolymers of vinyl chloride with vinyl acetate, vinylidene chloride, methyl methacrylate, butyl methacrylate, ethyl acrylate, acrylonitrile, diethyl fumarate and diethyl maleate, copolymers of vinylidene chloride with acrylonitrile and methyl methacrylate and copolymers of ethylene with vinyl acetate.  The sulphated alcohol may be oleyl, cetyl, lauryl, myristyl, stearyl, eicosyl, ceryl, myricyl, sperm oil alcohols and mixtures.  The salt of the sulphated alcohol may be either a metal salt, e.g. an alkali metal salt or a salt of an organic base, e.g. triethanolamine.  The compositions may include stabilizers such as lead stearate or calcium stearate, lubricants, e.g. stearic acid, pigments such as white lead paste and amorphous carbon and plasticizers such as dibutyl sebacate.  The compositions may be made into gramophone records, films, sheets, and filaments or used in coating, moulding, casting or dipping processes.
Patent GB-459488-A (GB)
Title: Process for the manufacture of derivatives of 2,4-dioxo-tetrahydro-pyridine
Filed: 1936-07-14
Abstract: 2 : 4 - Dioxo - 1 : 2 : 3 : 4 - tetrahydropyridine derivatives, in which both an alkyl and an allyl or substituted allyl group is present in the 3-position, are prepared by treating the alkali metal salts of 2 : 4-dihydroxypyridine, 2 : 4 - dihydroxy - 6 - methylpyridine or their 3-mono-alkyl derivatives in aqueous solution with allyl, b -bromallyl or b -methylallyl halides, in the presence of copper or copper compounds.  By catalytic hydrogenation, the allyl radicles can be converted into the corresponding propyl radicles. The products possess therapeutic properties.  Examples are given of the interaction of the sodium compounds of (1) 2 : 4-dihydroxypyridine (1 mol) with allyl bromide (2 mols) to give the 3 : 3 - diallyl compound; the 3 : 3-dipropyl compound is formed on hydrogenation; (2) 2 : 4 - dihydroxy - 3 - n - propyl - 6 - methylpyridine with allyl bromide, yielding the 3 : 3-n-propyl - allyl compound; (3) 2 : 4-dihydroxy-6-methylpyridine (1 mol) and allyl bromide (2 mols) to produce the 3 : 3-diallyl derivative; catalytic hydrogenation gives the 3 : 3 dipropyl compound; (4) 2 : 4-dihydroxy-3 - n - propyl - 6 - methylpyridine with b -bromallyl bromide to form the 3 : 3-b -bromallyl-n-propyl compound; (5) 2 : 4-dihydroxy-3-ethyl-6-methylpyridine with b -methylallyl chloride, producing the 3 : 3-ethyl-b -methylallyl derivative.  Copper powder or copper sulphate is present in each case.
Patent GB-775730-A (GB)
Title: Improvements in pulverized fuel burners
IPC: F23L17/00
Filed: 1955-07-06
Abstract: 775,730. Pulverized fuel burners. FOSTER WHEELER, Ltd. July 6, 1955 [July 29, 1954], No. 19542/55. Class 75(1) A pulverized fuel burner nozzle with a tubular body 11, e.g. of frusto-conical form,' designed to receive an air-carried stream of pulverized fuel rotating about its axis extending in the direction of flow, as from a volute chamber 16 fed tangentially from a supply pipe 17, has a plurality of circumferentially-spaced axially extending vanes or bars 30 projecting from the wall of the body in such positions as to disperse or break up the spiral rope of pulverized fuel that would otherwise form in the rotating stream and to distribute it substantially uniformly round the axis of the nozzle. A sleeve 27 extending axially within the body 11 and chamber 16 prevents the recirculation of pulverized material in the nozzle. An inner tube 29 provides means for lighting the burners. The opposite ends of the bars 30 are preferably spaced short from the inlet 12 and outlet 13 of the body 11. The outlet 13 communicates with a windbox 20 of an air supply means 21 which provides combustion supporting air to the burner controlled by dampers 23. The means 21 is attached to a furnace. wall 22 adjacent a burner opening 24 in the wall.
Patent GB-1206901-A (GB)
Title: A flux for zincking, tinning and leading
Inventor: MULLER WOLFGANG
IPC: C01G9/00
Filed: 1969-04-16
Abstract: 1,206,901. A novel zinc-ammonium chloride. TH. GOLDSCHMIDT A.G. 16 April, 1969 [12 Dec., 1968], No. 19551/69. Heading C1A. [Also in Division C7] A new compound, ZnCl 2 ZN(NH 3 ) 2 Cl 2 . 3NH 4 Cl is preferably prepared by concentrating at normal pressure an aqueous solution comprising 5-25% by weight ZnO, 30-50% ZnCl 2  and 30-70% NH 4 Cl up to a boiling point of about 123 C., then allowing to cool to 15-25 C. and separating the crystals from the mother liquor. The aqueous solution may be prepared by passing ammonia gas into a solution of ZnCl 2  and NH 4 Cl. The aqueous solution may also be prepared from either of the known double salts ZnCl 2 .2NH 4 Cl or ZnCl 2 .3NH 4 Cl. When heated the compound changes to Zn(NH 3 )Cl 2  by slowly eliminating NH 4 Cl and NH 3 .
Patent GB-827896-A (GB)
Title: Improvements in or relating to kilns for firing articles consisting of clay or brick-earth or the like
IPC: F27B13/08
Filed: 1957-06-21
Abstract: 827,896. Brick kilns. RUSSELL, E. D. B. June 20, 1958 [June 21, 1957], No. 19580/57. Class 51 (2). A kiln for the continuous firing of bricks and other ceramic ware comprises a permanent centre wall 10 lined with refractory 11, permanent end walls 12, and a plurality of removable inverted L-shaped units 16 forming the side walls and roof sections and centre wall respectively having interengaging stepped formations and steel locating bars 31 and 39. Each unit comprises upright girders 20 with transverse stiffening- bars 22 rigidly joined to roof girders 19 by gusset-plates 23, and having a lining of refractory concrete slabs 24 backed by steel plates 25. Adjacent girders 20 are connected by hooks engaging bosses fixed to said girders, Fig. 2 (not shown). The roof members are covered by sheet steel or iron plates 28, and some or all are formed with fuel ports 26. The hearth comprises a layer of hard-core 13, refractory concrete 14 and a top layer of brickwork 15, all bounded by steel joists 21 forming a footing for the units. Some of the units are formed with a lower closable port 32 to which a portable fan 35 and chimney 37 may be attached for control of the firing. Sufficient units are provided to cover the proportion of the hearth area used in burning and cooling the ware, and they may be moved by the fork-lift truck used for charging. Specification 801,943 is referred to.
Patent GB-483899-A (GB)
Title: Air pistol
IPC: F41B11/642
Filed: 1937-07-15
Abstract: 483,899. Air pistols. FOSS, W. July 15, 1937, No. 19606. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 17, 1938.] [Class 119] Relates to air pistols of the kind in which the barrel I is pivoted and arranged in front of an air cylinder 3 and is adapted when tilted to cock the spring piston of the cylinder by means of a cocking link. According to the invention, the cocking link 5 is arranged above the air cylinder 3. The front end of the link is pivoted at 6 to the barrel, which is pivoted at 4 to a front extension 2 of the air cylinder. The rear end of the link is forked and pivoted to a pin 8 on the rear abutment 9 of the spring 13 of the piston 10. The rod 11 of the piston has a shoulder 12 for engagement by a pawl 16 on the pin 8 to hold the piston cocked. In one form, Fig. 1, the pawl 16 engages the pin 8 by means of a slot 17 and is formed with a nose 19 to engage the shoulder 12 of the piston rod and with a finger 23 for co-operation with the sear 29. A spring 22 urges the pawl in the clockwise direction to make it engage the shoulder 12 during the cocking operation, the loose fit of the pawl allowing it first to ride over the shoulder. When the parts are in the cocked position, the finger 23 of the pawl lies in the same position as shown in Fig. 1 over a slot 31 in the air cylinder, but is held up by a nose 32 on the sear 29, which is supported by a pin 30. The sear is urged forward by a spring 33 and is connected by a pin-and-slot 28, 28a to the trigger 27 pivoted at 26. When the trigger is pulled the slack of the pin-and-slot is taken up and the seat also pulled, bringing its nose 32 opposite a slot 24 in the finger 23, whereupon the pawl can tilt and release the piston. In a modification, the pawl 16 is a two-armed lever pivoted on the pin 16, and is held in engagement with the shoulder 12 by a spring acting on its rear arm, until this is positively deflected by the rocking of a lever by the pull of the trigger connected to the lever by a link. A screw stop for the pawl can be adjusted to determine the load on the trigger.
Patent GB-1471380-A (GB)
Title: Device for shearing rod sections in an automatic multi-stage crossfed press
IPC: B23D15/00
Filed: 1974-05-03
Abstract: 1471380 Shearing HATEBUR UMFORMMASCHINEN AG 3 May 1974 [5 May 1973] 19620/74 Heading B3W A device for shearing rod sections in a multistage press comprises a reciprocable cutter carriage 11, the working stroke of which is transverse to the feed direction of the rod, an impact carriage 18 coaxial with the cutter carriage, a reciprocable drive means 25 rigidly coupled to the carriage 18 and having a stroke which enables the carriage 18 to stike the carriage 11 and cause shearing during the final portion of the stroke an element 30 coupling the carriages and rigidly connected to one carriage, as shown the carriage 11, and connected to the other carriage so that the rod is moved with that carriage over only part of its stroke, and a braking device for acting on the carriage 11 or the coupling rod to stop relative movement between the carriages in both directions. The carriage 18 is driven by a lever 20 rocked by the engagement of cam faces 19a, 19b with followers 23a, 23b on arms 23, 24. The cam disc 19 is geared to the press crank-shaft. A piston 37 mounted on the rod 30 is disposed with clearance 47 in an hydraulic cylinder 28a formed by the interior of the carriage constitutes the braking device. In operation, rod (8), Fig. 2, not shown, is fed by rollers (9) through a bore 10 in the carriage 11 to a gauging stop (17). As the carriage 18 is moved to the right it first closes the gap "a" and hits the carriage 11 to cause shearing when it reaches its maximum speed. A stop 44 on the carriage 11 moves between faces 51 and 49 of a groove 45, the braking action of the fluid flow past the piston 37 damping the impact of the stop. An ejector (16) aligned with the bore in carriage 11 at the end of the shearing stroke, i.e. at 15, pushes the cut section (13) into the first gripper pair 4a on a reciprocable carriage 7 which feeds the rod to first dies (1a), 3a. The return stroke of the carriage 11 is similarly damped. The hydraulic cylinder 28a is surrounded by a helical cooling water passage 39. The piston 37 may have one or more through bores instead of the gap 47. In an alternative embodiment, Fig. 6 (not shown), the piston 37 operates in a cylinder (58) fixed to the press. In a further alternative, Figs. 7 and 8 (not shown), the piston and cylinder device is replaced by brake shoes (63) acting directly on the carriage 11.
Patent GB-184166-A (GB)
Title: Method of and apparatus for separating dissolved substances by crystallization
IPC: B01D9/00
Filed: 1922-07-18
Abstract: 184,166. Marsh, H. S., and Cochran, R. S. Aug. 3, 1921, [Convention data]. Cooling liquid, tubular-apparatus for; precipitating solids from solutions. - A solute is separated by cooling the solution during its passage in a continuous stream to a centrifuge or other separator, and the cold, recovered solvent is used to effect a preliminary cooling of the solution. Fig. 1 shows the plan of a system of coils by means of which the invention may be carried into effect. Fig. 2 shows the elevation of coil 4. The liquor to be treated, e.g. spent pickling-solution, enters at about 150 F. from the pickling-vat through the lead 5, and traverses in turn the inner pipe of the double walled pipes 1, 2, 3, 4 when it is conveyed through the lead 6 to the centrifuge, the cooling to which it is subjected having caused the solute to separate. While passing through the inner duct of tube 1, the solution is cooled by reclaimed acid which passes in the opposite direction through the outer duct. Similarly in tube 2, it is cooled by a cooling-agent such as cold water which enters through the lead 8 and leaves by the lead 9. In tubes 3 and 4, the solution is cooled by reclaimed acid which arrives through lead 12 from the centrifuge at a temperature of about 30 F., and by ammonia or other refrigerating medium, respectively, the latter entering by lead 10 and leaving by lead 11. The inner continuous tube of coils 1, 2, 3, 4 is made of acidresisting material, preferably seamless copper, and is as thin as possible, to allow heat to be conducted readily to the liquids passing through the cuter tubes. The latter are acid and pressure resisting and may be made of lead or some non-conducting material lined with lead, glazing, &c. Fig. 3 shows an alternative form of apparatus, which in operation is similar to that shown in Fig. 1. The flow of the spent acid through the continuous inner tube is gravitational as it approaches the centrifuge, and is effected by means of a pump as it passes through the jackets surrounding tubes 3a and 1<a>. Pipe 14 is used to replenish the water which is removed as water of crystallization.
Patent GB-1489061-A (GB)
Title: Bearings
IPC: F16C33/22
Filed: 1975-04-07
Abstract: 1489061 Bearings BTR INDUSTRIES Ltd 7 April 1975 [6 May 1974] 19888/74 Heading F2A A journal bearing comprises a cylindrical shell 10 and a multiplicity of segments 16, each comprising a rigid insert 17 with a flat surface and, remote from the flat surface, a second surface to which is secured a layer of elastomeric material 20, each segment 16 being detachably secured to the shell 10 in such a way that the elastomeric material 20 is remote from the shell 10 and a pair of edges of the flat surface lie axially along the inner surface of the shell 10. The embodiments show a two-piece shell 11, 12, Fig. 2 (not shown), carrying segments 16 spaced around its bore and along its length in an interlocking fashion, each being held by either one or two bolts 24. The inserts are extruded and each also has elastomeric material on its sides and ends sized by jig-grinding to give a suitable interference fit on assembly. The elastomeric material may be natural or synthetic rubber, and examples are given; suitable materials for the shell and inserts are mentioned and include various metals, ebonite and resin-bonded synthetic materials.
Patent GB-464499-A (GB)
Title: Improvements in and relating to machines for roughing the overlasted margins of shoe and like uppers
IPC: A43D37/00
Filed: 1935-07-12
Abstract: 464,499. Boot - making machines. MICHALK, O. July 12, 1935, No. 19930. Void. Convention date, July 16, 1934. [Class 17 (i)] Sole-laying.-Relates to machines for roughing the overlasted margins of uppers prior to the application of the cement by which the sole is secured. The machine has a narrow roughing roller f for use at the waist of the shoe, a support n being provided for the work. For use at the fore-part, a broad roughing device f<1> is provided, in front of which is an apertured work-abutment plate i adjustable towards and from the roughing device, clamping screws l, l<1> engaging guide pins k, k<1> for securing the plate in operative position.
Patent GB-147952-A (GB)
Title: Improvements relating to furnaces for smelting readily fusible metals from scrap
IPC: F27B14/14
Filed: 1920-07-09
Abstract: 147,952. Gauschemann, C. Sept. 9, 1915, [Convention date]. Metal - heating furnaces; melting-pot furnaces.-A furnace for melting easily-fusible metals from scrap comprises a shallow pan or melting-pot 7 which is so formed and mounted that openings are provided to allow the heating-gases to pass from beneath the pan into and amongst the scrap metal supported thereon. As shown, the pan 7 stands clear of the rear wall of the furnace casing, and the opening between the two is masked by a baffle 10. At the side the pan is recessed to form openings, which are continued upwards by three-sided casings 12 having inclined baffles 13 above their upper ends. pan is recessed to form openings, which are 18, and a side door 15, through which the scrap can be removed after the molten metal has run off through the spout 9. A removable grating 16 is fitted in front of the door 15.
Patent GB-895472-A (GB)
Title: Improved mounting means for cladding around boilers and like structures
Inventor: HUGHES SAMUEL STEPHEN
IPC: F23M5/00
Filed: 1959-06-11
Abstract: 895,472. Furnace casings. VERSIL Ltd. May 13, 1960 [June 11, 1959], No. 20032/59. Cass 51 (1). [Also in Group XIII] Panels of metal cladding 5, e.g. for protecting heat-insulating material, are mounted by means of hooks 6 on a series of horizontal tubes, bars or rods 4 spaced from an internally-heated structure such as the casing or wall 1 of a boiler so that the cladding may move in either of two directions mutually at right angles upon thermal expansion. The insulation is held away from the wall 1 by wire mesh and the hooks which may be mounted on studs 2, are fixed to the cladding 5 during erection. The Provisional Specification describes also glass fibre kept from contact with the cladding by wire mesh and the hooks engaging the outer ends of the studs so that the rods are not required.