baber/WOPTO huggingface dataset:
Patent GB-580663-A (GB)
Title: Improvements in or relating to the obtaining of ramie
IPC: D01C1/02
Filed: 1944-07-18
Abstract: Ramie fibres for textile use, paper-making, &c. are obtained by subjecting green ramie stems shortly after cutting to steam treatment under pressure in a closed receptacle to loosen and partially degum the fibres, then drying the stems and then passing the dried stems between rollers to separate the fibres from the waste material.  The fibres may then be subjected to air blast or beater treatment to remove remaining waste.  The steam treatment may be at a pressure of 15-40 lbs. per square inch for from one to six hours.  The rollers are preferably fluted and in two sets formed with wide shallow teeth and narrow deep teeth respectively.
Patent GB-813038-A (GB)
Title: Self-unloading unit for bulk-carrying cargo vessels
IPC: B65G67/60
Filed: 1956-05-04
Abstract: 813,038. Staiths on ships for loading and unloading; endless conveyers. BARTENFELD, W. G. May 4, 1956 [Jan. 24, 1956], No. 13837/56. Classes 78 (1) and 78 (4). Cargo is unloaded from a ship by one or more grabs 34, 35, Fig. 3, carried by a movable framework 12 which can be stationed over a cargo hatch 3, the grabs being movable transversely of the ship and delivering material to a hopper 40 which feeds a conveyer extending longitudinally of the ship and delivering material to a second conveyer which can be moved between a position delivering material from the ship and a stowed position in which it is disposed between the sides of the ship. In the construction illustrated the hopper 40 includes members 42, 43 by which it may be set to feed either of two pan conveyers 44, 45 one of which feeds a belt conveyer 51 on a boom 6 mounted for luffing and slewing as described in Specification 813,037 and the other 44 of which feeds a shuttle conveyer 64. The framework 63 of the shuttle conveyer 64 is carried by rollers 62 (Fig. 5) from tracks 61 so that it can be slid athwartships to extend beyond the side of the ship after which it may be raised by tackle passing round pulleys 66 and 67 or 69 and 70 so that it assumes the inclined position illustrated. Two grabs 34, 35 are suspended from independent hoist trolleys 25, 26 running on rails 24. A single grab and trolley, or more than two grabs, may however be employed. The pan conveyers 44, 45 may be replaced by screws. The framework 12, when not in use, can be housed in an open-fronted cage secured at either the forward or aft end of the tracks 10 for the framework 12 as described in Specification 813,037.
Patent GB-580778-A (GB)
Title: Reagent for testing for acetone
IPC: G01N33/64
Filed: 1944-07-19
Abstract: A reagent for testing for acetone, e.g., in urine, consists of a dry mixture of a powdered soluble nitroprusside, granular sodium carbonate, and granular ammonium sulphate.  When moistened with a drop of liquid to be tested it gives a green or blue reaction product if acetone is present.  Specification 524,426 is referred to.
Patent GB-1267531-A (GB)
Title: Improvements in or relating to oscillating beds for moulding hollow plastics articles by blowing
IPC: B29C49/32
Filed: 1969-03-17
Abstract: 1,267,531. Blow-moulding. LESIEURCOTELLE S.A. 17 March, 1969 [18 March, 1968], No. 13887/69. Heading B5A. In a blow-moulding machine, the mould carrier assembly is carried on and rigid with a shaft trunnioned on a fixed frame structure and coupled to a reciprocating motion drive for rotary oscillating movement about its longitudinal axis for moving the carrier between a first, mould loading position and a second, mould discharge position and the shaft is also coupled to a manual drive through reduction gearing to move the shaft to a third, mould replacement position. As shown in Fig. 1, mould assembly 10 oscillates about rotary shaft 5 between position 10a in which it receives a tubular extrudate from extruder 1 and position 10b in which the mould article is ejected. This motion is effected by cylinder 13 mounted on frame 2 at 14, piston-rod 15 being connected to shaft 5 through a coupling 17 carried by the outer end of arm 18 rigid with the shaft. The mould assembly is also movable to position 10c for replacement of moulds by means of wheel 19 on shaft 5 engaging worm 21 which is connected to frame 2 at 22, 23 and has a stub shaft extension 24, the square-sectioned end 24a of which is engaged by manual drive means, e.g. a handwheel. Two mould assemblies 10 may be used if desired, the mould(s) of one being replaced independently of the other.
Patent GB-918309-A (GB)
Title: Improvements in or relating to tensioning devices for sashless windows
IPC: E05C17/60
Filed: 1960-04-21
Abstract: 918,309. Preventing rattling of windows. CELWOOD INDUSTRIES Ltd. April 21, 1960 [July 6, 1959], No. 13965/60. Classes 44 and 65 (1). A tensioning device for maintaining the upper portions of the overlapped panes 10, 12 of a sashless sliding window tightly pressed against each other comprises a base 34 having a flat mounting surface and mounting a socket 40 with its axis parallel to the mounting surface, the base having elongated slots 36 for freely receiving screws 38 for adjustment purposes, the socket securely containing the base portion of a truncated cone section 44 terminating in a flat friction tip and having a free length such that when the device is secured in position, siding movement of the pane 12 causes radial deflection of the cone section which is sufficiently resistant to the deflection as to creep back to normal position after deflection against the resistance of the pane 12.
Patent GB-1006761-A (GB)
Title: Improvements in or relating to ionisation manometer gauges
IPC: H01J41/04
Filed: 1964-04-03
Abstract: 1,006,761. Ionization manometers. M. M. DUNKEL, [trading as E. LEYBOLDS' NACHFOLGER]. April 3, 1964 [April 6, 1963], No. 13969/64. Heading H1D. The concentrically arranged cathode 2, grid 4 and anode 5 of an ionization gauge are wholly supported by contact pins extending through the base 11 in a circular array, each electrode being connected to three of the pins. The hairpin cathode filament 2 is electrically connected at the ends to pins 21 and 22 and is supported by a hook 30 at the end of a wire 3 fused into an insulating bead 24 mounted on a support 230 connected to pin 23 which is earthed. The grid 4 is electrically connected to pins 41, 43 and a third pin (not shown). The anode 5 is electrically connected to pin 52 by a lead 520 surrounded by an earthed screen 521 and is connected to two earthed pins by insulating beads (one pin 51 and bead 54 being shown).
Patent GB-626107-A (GB)
Title: A new or improved method of alloying a metal with one or more heavier metals
IPC: C22C1/02
Filed: 1947-05-27
Abstract: A method of alloying a metal with one or more heavier metals, particularly of producing alloys in which the heavier metal predominates, comprises inserting a rod of the light metal or of an alloy rich in the light metal in at least one of the secondary melting channels of a submerged resistor type induction furnace, charging the heavier metal or metals into the hearth of the furnace, effecting a gradual entrance of the rod into the channel, forming in the channel an alloy which is rich in the light metal and distributing the said alloy, by the electro-magnetic motive forces existing in the secondary loop of the furnace, throughout the hearth to form the final alloy.  The temperature is preferably maintained below the melting point of the light metal and above the melting point of the heavier metal.  The cross section area of the rod may be less than that of the melting channel so that an annular clearance, e.g. of not more than one third of the cross-section area of the channel, exists between the rod and the inner wall of the channel. The rod may be fed gradually into the channel as alloying proceeds, the rate of feed being controlled, for example, by a weight acting on the rod.  The production of a zinc-aluminium alloy is referred to, employing a rod of aluminium or an aluminium-rich alloy and a charge of zinc on the hearth of the furnace.  The temperature of the furnace is maintained at about 850 DEG C.
Patent GB-675852-A (GB)
Title: Improvements in or relating to thermionic valve amplifier circuit arrangements
Inventor: COOPER VICTOR JAMES
IPC: H03F3/44
Filed: 1948-05-24
Abstract: 675,852. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 25, 1949 [May 24, 1948], No. 14017/48. Class 40 (vi). An amplifier comprises three or more valves in series across an H.T. source, the input being applied to the grid of the valve VI, Fig. 2, at the negative end of the chain, while the control grids of the remaining valves are connected to a point between the anode of the first valve and the cathode of the succeeding valve V2; the output is taken from the cathode of the first valve and from a point which may comprise its anode or, as shown, the cathode of the last valve in the chain, or any point between the two. Resistances RI may be included between any two adjacent valves and may be utilized to provide grid bias, Fig. 3 (not shown); bias may alternatively be provided by means of sources GB2, GB3 in the grid leads. Bias may also be obtained by means of a circuit comprising a resistance R4, Fig. 5, and gas-discharge tube N in series between the anodes of successive valves, together, with an optional inductance L, a potentiometer R5 providing for its adjustment. Frequency-compensating inductances L1, L2 may also be included in the circuit.
Patent GB-941187-A (GB)
Title: Improvements in and relating to armature assemblies for dynamo-electric machines
IPC: H02K3/26
Filed: 1960-04-21
Abstract: 941,187. Dynamo-electric machines having planar air-gaps and printed circuit windings. NORMACEM. April 21, 1960 [April 30, 1959], No. 14039/60. Heading H2A. In a dynamo-electric machine having a planar air-gap between its rotor and stator, an armature assembly comprises a winding formed by a plurality of laminar conductors extending away from the rotor axis x-x in each of at least four layers axially spaced apart by insulating layers, and the conductors are so shaped and so interconnected at their respective ends that each winding turn is constituted by at least four series connected conductors grouped in pairs to form part-turns of lap and wave types. In the A.C. machine shown, the stator comprises an annular field magnet 1 fixed to an iron plate 8 on which are mounted holders 11 of brushes 11a which rub against terminal portions 23, 28 of the armature conductors, and a ring 7 carrying a self-lubricating sleeve 6 in which rotates the armature shaft 3. An insulator 2a is interposed between two insulating discs 2, 21 on whose faces the armature conductors are printed; and whilst on each disc, Figs. 3 and 4, the inner terminals 28, 23 of the respective wave and lap half turns are connected together, the outer terminals 27a, 27b on one disc 2<SP>1</SP> are connected to corresponding terminals 22a, 22b on the other disc 2 so that in each complete turn a lap turn is interposed between two wave halfturns. Higher voltages may be achieved by increasing the number of layers. In an A.C. machine, not shown, the field magnet is fixed to the rotatable shaft and is disposed axially between two armatures each fixed to a magnetic annulus. Reference has been directed by the Comptroller to Specification 874,394.
Patent GB-588829-A (GB)
Title: Improvements in thermal regulators for electrical heating apparatus
IPC: H01H61/013
Filed: 1944-07-22
Abstract: 588,829. Temperature - responsive actuating - elements. SATCHWELL, L., WILSON, W. H., and CHINN, A. J. July 22, 1944, No. 14040. [Class 64 (ii)] [Also in Groups XI and XXXVII] In a thermal regulator (see Group XXXVII) in which variation of the proportion of " on " and " off " in times of an intermittent electrical switching cycle varies the energy input to a heating device, a bimetallic strip 3 forming a thermally responsive member is fixed to heating means (see Group XI) comprising a metal block composed of two parts I, 1<1> between which is clamped a resistance in the form of a cut or stamped metal leaf or leaves a, b, c.
Patent GB-1454597-A (GB)
Title: Method of prilling and device for carrying out the method
IPC: C05C1/02
Filed: 1974-03-29
Abstract: 1454597 Spray producers VEREINIGTE OSTERREIOHISGHE EISENUND STAHLWERKE-ALPINE MONTAN AG 29 March 1974 [7 May 1973] 14065/74 Heading B2F A device for prilling liquids, comprises a spiral housing 1, figure 2, for a liquid to be prilled, the liquid entering the housing via a tangential inlet 2 and flowing through a cylindrical sieve 3 into the centre of the housing, liquid being forced from the housing through perforations 6 in a circular plate 4 rigidly attached to the bottom of the housing, the liquid being propelled downwardly by periodical pressure fluctuations applied thereto by means of a circular plate 8, Figure 1, flexibly attached by an annular seal 9 to the top of the housing and oscillated by a vibration generator 11 and a shaft 10. Upstanding radially directed laminas 12 direct the liquid towards the centre of the housing. A method of prilling liquids using the above device, includes applying a frequency f of the pressure fluctuations which is approximately given by where v is the exit velocity of the liquid through the perforations 6in m/sec, and d is the perforation diameter in mm, the frequency f being in the range of 100 to 2000 Hz. Either saw-toothed or sinusoidal fluctuations may be used. In a second embodiment, Figures 3, 4 (not shown) the plate 8 is positioned within the housing 1 closely above the perforated plate 4, plate 8 also having perforations therein which are of larger diameter than those in plate 4. The seal 9 is then connected to the shaft 10 instead of to the plate 8.
Patent GB-1190683-A (GB)
Title: Process for Preparing Paraformaldehyde.
IPC: C08G2/08
Filed: 1968-03-22
Abstract: 1,190,683. Preparation of particulate paraformaldehyde. SOC. ITALIANA RESINE S.p.A. 22 March, 1968 [23 March, 1967], No. 14085/68. Heading C3P. Paraformaldehyde having a formaldehyde concentration between 75 and 96% and in the form of uniform even particles which do not tend to pack together is obtained by a process in which sub-divided discrete particles or droplets of an aqueous formaldehyde solution having a concentration of at least 75% are cooled in the absence of catalysts to a temperature in the range 15‹ to 35‹ C. to cause solidification, and the resulting particles are thereafter aged for 1 to 100 hours at a temperature below their initial melting or softening point, whilst avoiding relative movement of said particles. The process is suitably carried out by subdividing the solution by feeding to sprinklers, atomizers, mist-forming devices or prilling towers, to which air or other inert gas is admitted at - 20‹ to + 60‹ C. The ageing period allows an increase in the degree of polymerization. A further heating step may be included in order to increase the formaldehyde concentration of the product.
Patent GB-253133-A (GB)
Title: Improvements in cylinder liners for two-stroke cycle internal combustion engines
IPC: F02B75/02
Filed: 1926-06-03
Abstract: 253,133. Brown, E. June 4, 1925, [Convention date]. Cylinders, forms and arrangement of ports in, liners for, and cooling.-The ports of a divided liner for the cylinder of a two-stroke-cycle engine have toothed opposing edges 7, 8 which overlap by a small amount and so form scavenging air and exhaust ports 11, 10; the ports may extend round a portion of the periphery only, the remaining teeth being arranged to completely engage. The teeth may be formed as shown in Fig. 6 or in Fig. 7 which shows extra scavenging air ports 33 formed in the teeth; the heads of the teeth may be bevelled or rounded to facilitate the sliding of the piston rings over them. The teeth forming the exhaust ports are hollow and cooled by a cooling fluid supplied by pipe 17, which afterwards flows to the cylinder jacket. Fig. 9 shows the application to a double acting engine in which the liner is in three parts 36, 37, 38, the opposing edges being toothed to form the ports, and the centre part forming a distance piece between the water jackets 43, 44 carrying the outer parts of the liner.
Patent GB-1272229-A (GB)
Title: Improvements in and relating to the treatment of molten material
Inventor: LUBANSKA HOPE
IPC: C21C7/10
Filed: 1968-11-27
Abstract: 1,272,229. Spray producers. BRITISH IRON & STEEL RESEARCH ASSOCIATION. 27 Nov., 1969 [27 Nov., 1968; 18 March, 1969], Nos. 56250/68 and 14144/69. Heading B2F. [Also in Division C7]  A spray is produced by shattering a freelyfalling stream of liquid by impacting the stream with jets of fluid directed from two sets of nozzles towards a common focus on the stream of liquid, the angle to the vertical made by the two sets of jets being different and the horizontal components of force exerted by a given set of jets being zero. As shown a stream of molten material 1 is produced from a circular nozzle 2 in the bottom of tundish 3 and is shattered by jets of gas from nozzles 8, 11 in the nozzle rings 4, 5. Nozzle rings 4 and 5 are of identical construction, ring 4 having four circular nozzles arranged symmetrically on a circle being supplied with gas via inlet 7. A cooling ring 6 is also provided. The rings 4 and 5 are orientated so that a nozzle in ring 4 lies vertically above the midpoint of the arc connecting adjacent nozzles in ring 5. Valve means 12 is provided to adjust the pressure and hence exit velocity of gasses from nozzles 8, 11. In modifications the nozzles 8, 11 may lie on circles of different diameters, be replaced by annular nozzles, lie in the same plane; the nozzle 2 may have a slot aperture in which case nozzles 8, 11  may be arranged parallel to the major axis of the sheet of molten liquid or may be replaced by slits parallel to the said major axis and again the nozzle systems may be on the same or different levels. The apparatus may be used for the production of powdered metal or for the refining of metal, particularly ferrous metal. In the production of powdered metal the fluid may be a liquid in the refining of metals the fluid is a chemically reactive gas, particularly an oxidising gas, for example oxygen. If a gas jet is produced by the nozzles they have convergent/divergent throats as shown but when a liquid jet is produced parallel sided or convergent throats are used.
Patent GB-801068-A (GB)
Title: Improvements in or relating to roller supports for endless belt conveyors
Inventor: GODSELL ALBERT VICTOR
IPC: B65G39/09
Filed: 1956-05-08
Abstract: 801,068. Endless-belt conveyers. CONVEYING DEVELOPMENTS, Ltd. May 1, 1957 [May 8, 1956], No. 14189/56. Class 78 (l). A flexible troughing roller comprises a tubular rubber sleeve 14 which is closed at each end by a plug 15 and is carried by a flexible shaft 17 which passes through the sleeve and central apertures in the plugs. The ends of the shafts project from the plugs and are secured to hollow caps 18 which are screwed on to the plugs. A flange 19 on each cap bears against the outer side of the inner member 20 of a roller bearing 21, the outer member 22 of which is mounted in a housing 23. Each housing is closed by a disc 27 provided with a grease nipple 28. Trunnions projecting from the sides of the housing engage in slots in the supports 12.
Patent GB-399439-A (GB)
Title: Improvements relating to paper-making machines
IPC: D21F5/02
Filed: 1933-05-17
Abstract: 399,439. Cleaning and drying felts of paper-making machines. RUSSELL, D. and HAPPER, J. R., Rothes, Markinch, Fifeshire. May 17, 1933, No. 14243. [Class 96.] Felts, e.g. the upper and lower dryer felts, are cleaned and dried by hot air at atmospheric pressure drawn through whilst the felt surface e.g. that which normally supports the paper web contacts with a part of a suction drum 4, Figs. 1 and 2, which is covered by a hood 5, a sleeve 10 of the drum 4 rotating on bearings 12 on tubular shafts 11 and being partitioned at the periphery into chambers 6 exhausted through ports 9, and inlets 7 of a suction fan 13 housed and driven within the drum, a mask 8 isolating those chambers 6 not covered by the felt. Specifications 14660/14, [Class 96,. Paper , &c.], is referred to.
Patent GB-649961-A (GB)
Title: Improvements relating to coal planers
IPC: E21C35/12
Filed: 1948-05-26
Abstract: 649,961. Planers. LOBBE, W. May 26, 1948, No. 14270. Convention date, June 17, 1947. [Class 68 (i)] To prevent a double-ended planer and loader A from overturning due to the lateral thrust exerted on the machine, there is provided a lee-board-like part or parts 20 which lie under the full width of the adjacent conveyer C disposed parallel to the face so that the combined weight of the conveyer and the coal carried by it acts on the lee-board or boards so increasing the stability of the planer against overturning. A wedge-shaped slide is secured to the free end of the lee-boards by a chain so that as the planer advances, the conveyer is forced up to the new face by the slide as it squeezes between the conveyer and adjacent pit props.
Patent GB-438426-A (GB)
Title: Manufacture of acid dyestuffs
IPC: C09B11/26
Filed: 1934-05-11
Abstract: Acid dyestuffs, of the probable general formula <FORM:0438426/IV/1> where X is hydrogen, alkyl or aryl, Y is alkyl or aryl, and Z indicates that the dyestuff contains sulpho-groups, are manufactured by condensing one molecular proportion of a p-halogenbenzaldehyde or a benzaldehyde-p-sulphonic acid with two molecular proportions of an a -alkyl- or a -arylindole unsubstituted in the b  position, or an N-alkyl or N-aryl derivative thereof, sulphonating, oxidizing, and condensing the product with a primary p-alkoxyarylamine, or by condensing the benzaldehyde derivative with a sulphonic acid of the indole derivative, oxidizing, and condensing with the amine.  In examples: (1) p-chlorobenzaldehyde is condensed with N-methyl-a -phenylindole and the product is sulphonated, oxidized and condensed with p-phenetidine; the product in the form of its sodium salt dyes wool and silk blue tints; (2) benzaldehyde-p-sulphonic acid is condensed with N-methyl-a -phenylindolesulphonic acid and the product is oxidized and condensed with p-anisidine; the product dyes wool and silk blue tints; (3) as in (2) but using N-methyl-a -methylindolesulphonic acid; the product dyes wool and silk reddish-blue tints.  The Specification as open to inspection under Sect. 91 comprises also the use of a primary p - aryloxyarylamines, e.g. p - aminodiphenyl ether, in the last stage of the condensation. This subject-matter does not appear in the Specification as accepted. N - Methyl - a  - phenyl - and - a  - methylindolesulphonic acids are obtainable by sulphonating the corresponding indoles with fuming sulphuric acid, the sulphonic group probably entering the 6-position.
Patent GB-419946-A (GB)
Title: Manufacture of acetic acid and its derivatives
IPC: C07C51/00
Filed: 1933-05-17
Abstract: The residues obtained by evaporating spent fermentation liquor from which the alcohols or glycerol have been separated, are heated alone or with the addition of an alkali or alkaline earth oxide, hydroxide or carbonate, at about 300--400 DEG  C. for from 5 to 60 minutes, the product being leached to obtain acetates which may be treated to obtain acetic acid, or reacted with alcohols in presence of acid to obtain esters.  The calcination of the fermentation residue may be effected at normal, reduced, or increased pressure, and preferably without contact with iron or its compounds, i.e. the calcination may be effected in copper apparatus.  In an example, the residue from a spray tower in which fermentation glycerol is recovered, is mixed with powdered limestone and heated in a copper vessel in an atmosphere of carbon dioxide at 350 DEG  C. for 15 minutes.  The cooled product is ground, mixed with alcohol, and sulphuric acid is added, the mixture being heated under reflux for about an hour and then distilled for the recovery of ethyl acetate.  Specification 13409/91, [Class 2], is referred to.