baber/WOPTO huggingface dataset:
Patent GB-408628-A (GB)
Title: Improvements in and relating to the cleaning of coal
IPC: B07B9/00
Filed: 1932-10-11
Abstract: 408,628. Preparing fuel. HOLMES, C. W. H., Deneside, Alverstone Avenue, Low Fell, and BIRTLEY CO., Ltd., Birtley, both in Co. Durham. Oct. 11, 1932, No. 28362. [Class 50.] Small raw coal is graded and the larger particles are separated by a dry pneumatic process into two or more components comprising clean coal and shale, while the smaller particles are similarly separated by a vacuum or reduced pressure wet flotation process, the clean coal products of both processes then being mixed in suitable proportions providing the desired moisture content according to its use, e.g. as an industrial fuel or for carbonization or coke production. Fine dust may be removed before the preliminary grading, which may produce three grades of which the intermediate is subjected either to a wet or dry cleaning process according to the moisture content desired in the mixture of the three grades of clean products. The middlings obtained during pneumatic separation may be crushed below <1>/10 in, mixed with the bulk of fine coal and treated by the wet process. For gas manufacture the final product may be mixed with a further portion of hand picked or dry cleaned coal. Another method comprises the extraction of the largest fraction of the dry cleaned coal as a separate product, only a portion of the dry cleaned coal being mixed with the flotation product. In an example 100 tons of coal as received at the pithead are roughly graded to a range of about # in.-0 in. which is sieved into 80 tons of size # in.-<1>/32 in. and 20 tons of finer grade. The larger grade yields by dry separation on a pneumatic cleaning table 70 tons of coal with an ash and moisture content of 5 and 2 per cent respectively. The smaller grade yields 15 tons with an ash and moisture content of 5 and 25 per cent.
Patent GB-483565-A (GB)
Title: Improvements in or relating to air-tight joints between metals and ceramic materials
IPC: C04B37/02
Filed: 1936-10-19
Abstract: A method of making an air-tight joint between a ceramic body and a metal body, more especially in electric incandescent lamps and discharge lamps, comprises the step of heating the ceramic body to a temperature above the lowest temperature at which the material of which it is composed has a liquid component, while the ceramic body is in intimate contact with a powdered metal, whereby a metal layer is sintered on to the surface of the ceramic body, and the subsequent step of soldering the metal body to the said metal layer.  The ceramic material preferably contains additives such as manganese dioxide, barium oxide, lime &c., which secure that when the material is heated until a liquid component forms and is then cooled, its resulting structure is crystalline and not vitreous.  Tungsten and molybdenum are suitable materials for the metal powder, the sintering then being performed in a non-oxidizing atmosphere.  In an example the ceramic material consists of 30 per cent MgO, 61 per cent SiO2, 4 per cent Al2O3, 2 per cent CaO, and 3 per cent MnO2, such a ceramic having a liquid component when heated to about 1100 DEG  C. Tungsten powder can be sintered to form a metal layer on the ceramic body at 1300 DEG  C., a metal body of iron, nickel or a nickel-iron alloy being next soldered to the metal layer by a solder such as silver.
Patent GB-636370-A (GB)
Title: Improvements in or relating to ice cream freezing machine
IPC: A23G9/10
Filed: 1947-10-27
Abstract: 636,370. Ice-cream freezers. NEILSON, R. J. Oct. 27, 1947, No. 28587. [Class 29] In an ice - cream freezer 7 of the type comprising scraper blades 1 carried on vertical arms 3 of a U-shaped holder 4, the blades 1 are loosely fulcrumed on a rib 2 on each arm. 3 and are L-shaped in cross section, the shorter limb of the L having L-shaped or keyhole slots to accommodate bolts 5 for fixing the blades loosely to the arms 3. The rib 2 is continuous or intermittent or comprises a series of raised points. According to the Provisional Specification, the blades 1 may comprise a series of aligned parts.
Patent GB-1534161-A (GB)
Title: Method and a device for drying wet fibrous webs
IPC: D21F3/02
Filed: 1976-07-09
Abstract: 1534161 Drying fibrous webs AKZO NV 9 July 1976 28715/76 Heading F4G A method of drying a wet fibrous web 12, e.g. paper pulp, which involves passing the web on a felt 3 through two nips 10, 11 formed between a drying cylinder 9 and two press rollers 4, 5, comprises cooling the felt, e.g. by a cold water spray 8, at a location intermediate the nips 10, 11 to condense water vapour in the felt, and removing the condensate from the felt by pressing at 6, 7 still intermediate the nips 10, 11. The nip 6, 7 may be provided by rollers, as shown, and may include a suction box 7<SP>1</SP>, or by a flat plate press or a grooved press.
Patent GB-826256-A (GB)
Title: Improvements relating to mowing machines, elevators and like machines
IPC: A01D34/42
Filed: 1956-09-20
Abstract: 826,256. Lawn-mowers. WOLSELEY ENGINEERING Ltd., and DRAKE, R. S. Dec. 19, 1957 [Sept. 20, 1956], No. 28736/56. Class 6(2). [Also in Group XXXI] A normally manually propelled machine M, such as a lawn mower, is provided with a divided horizontal drive shaft having sockets 15, 16 which can be spread apart for coupling to the motorised shaft 11 of an agricultural implement. The latter is also supported by a prop (not shown) located at the rear of the machine which has a chain and sprocket transmission enclosed by a guard 14 and driven by the divided shaft. Holes 19 in the latter are engaged by pins (not shown) which are also passed through holes 20 in the shaft 11. Specification 714,394 is referred to.
Patent GB-393830-A (GB)
Title: Process for the manufacture of dry diazo-preparations
Filed: 1932-10-14
Abstract: Dry diazo preparations are made by introducing the diazo-compound containing water (solution, pasty mass or moist preparation) into an organic liquid, which is immiscible with water and can be distilled without change, and distilling with constant addition of fresh portions of the organic liquid until no more water is carried over. In examples, (1) the moist diazonium hydrochloride from 4-chloro-2-aminodiphenylether (cf. Specification 363,950) is distilled with toluene, (2) a diazo solution from 4-chloro-2-aminodiphenyl ether is mixed with magnesium and sodium 1-chlorobenzene-2 : 4-disulphonates and the pasty mass is distilled with toluene or chlorbenzene, (3) a solution of diazotized 4-nitro-2-toluidine is mixed with the sulphonates mentioned in (2) and the solution distilled with toluene, (4) a diazotized solution of m-nitro-p-toluidine is precipitated by adding sodium 1-chlorobenzene-2 : 4-disulphonate and the product treated as above; a list of diazo compounds and stabilizers is also given in the Specification.  The Specification as open to inspection under Sect. 91 refers also to the production of other preparations, e.g. indophenols.  This subject-matter does not appear in the Specification as accepted.
Patent GB-142407-A (GB)
Title: Improved toy steam engine with boiler
IPC: F01B17/04
Filed: 1919-11-20
Abstract: 142,407. Friz, E. Nov. 20, 1919. Steam generators.-The spirit lamp for heating a toy steam-engine is so arranged that it may be fitted either to the end or to the side of the boiler in order that the engine may be used in a horizontal position as shown in Fig. 1, or in a vertical position as shown in Fig. 2. The heating lamp u forms a stand, and is provided with flanges v which slide on to metal strips d or d<1> secured to the boiler. A transverse tube o, Fig. 6, communicates with the fire-box m for use when the boiler is horizontal. In a modification, the heater u is pivoted to the boiler, and in a further modification it may be suspended from strips secured to the boiler.
Patent GB-518151-A (GB)
Title: Improvements in or relating to garments applicable for use or wear as bathing costumes or "swim suits"
IPC: A41D7/00
Filed: 1938-10-05
Abstract: 518,151. Swimsuits. SYMINGTON & CO., Ltd., R. & W. H., COX, F. G., FARMER, S. P., and FARNDON, W. E. Oct. 5, 1938, Nos. 28836 and 30431. [Class 141] A swimsuit for ladies or children is made from a number of shaped pieces of material united lengthwise in a figure fitting manner by doubled-over seaming formed of superposed layers. The material used is towelling and, as shown, the bust is lined with shaped pieces b', b<2>, b<3>, and the back may be furnished with a sliding fastening e.
Patent GB-500444-A (GB)
Title: Improvements in the manufacture and production of paper, cardboard and the like
IPC: D21H19/52
Filed: 1937-10-22
Abstract: 500,444. Sizes for paper &c. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) Oct. 22, 1937, No. 28887. [Class 121] [Also in Group VIII] Paper, cardboard, &c., e.g. for printing, is treated with solutions of alkyl cellulose glycollic acids, e.g. prepared by condensing alkylated alkali cellulose with mono-chloracetic acid ; pigments, e.g. titanium dioxide and barium sulphate with blanc fixe and talc, may be suspended therein, and starch, casein, gelatine, or montanic acid and its sodium salt may be added. Aluminium sulphate solution may be applied to the coated paper by -immersion or spraying.
Patent GB-1304254-A (GB)
IPC: B01J41/00
Filed: 1970-06-15
Abstract: 1304254 H 2 SO 4  purification INVENTA AG 15 June 1970 [16 June 1969] 28903/70 Heading C1A 55-85% w/w H 2 SO 4  is treated with halide ions and, if necessary, an oxidizing agent to convert metals and semi metals into anionic halo complexes which are removed by treatment with an anionic exchanger. Halide ions may be provided by addition of HCl or NH 4 Cl and a 10-200 times excess may be used. The starting acid is preferably 75-80% H 2 SO 4  and the process is especially useful for the removal of iron. The ion exchanger may be regenerated by treating with < 50% w/w H 2 SO 4 . A continuous process is envisaged using a plurality of columns in series, individual columns being isolated and regenerated as they become exhausted.
Patent GB-426498-A (GB)
Title: Improvements in or relating to saws
IPC: B23D61/12
Filed: 1933-10-19
Abstract: 426,498. Hack-saw blades. NEILL & CO. (SHEFFIELD), Ltd., J., and SWAIN, G., Napier Street, Sheffield. Oct. 19, 1933, No. 28906. [Class 145 (ii)] A hack-saw blade has interspersed wide and narrow teeth, the wide teeth projecting on both sides beyond, and the narrow teeth being contained within, the thickness of the blade body. As shown, wide teeth 12 each having a cutting edge 16 wider than the blade width alternate with narrow teeth 17 the sides of which are co-planar with the sides of the blade body. The cutting edge 16 of the wide teeth may be continuous, or may be divided by a central recess 22 into two portions which are each equal in width to one half the width of the cutting edge of a narrow tooth. The teeth may all be of the same length, or the narrow teeth 17 may project beyond the teeth 12. The cutting edges and front and rear faces of the teeth are preferably at right angles to the median plane of the blade. The teeth 12 may be caused to project beyond the blade as described by a forging operation which simultaneously forms the recesses 22.
Patent GB-806622-A (GB)
Title: Improvements relating to apparatus for regulating the power for idling of internal combustion engines
IPC: F02D9/00
Filed: 1956-09-21
Abstract: 806,622. Regulating. DAIMLER-BENZ A.G. Sept. 21, 1956 [Sept. 21, 1955], No. 28910/56. Class 7(6) The idling stop 18 of the throttle valve 11 of a fuel injection engine is automatically adjusted in dependence upon the condition of the engine lubricating oil. The stop 18, co-operating with an adjustable screw 17 on the throttle lever 13, is connected to a spring loaded piston 20 subjected through a thin pipe 25 to the pressure in the lubricating system 24, a return pipe 26 of very narrow bore also connecting the space 23 to the lubricating system 24. Before starting, the piston 20 is pressed by spring 21 against a stop 22, setting the stop 18 in a fast idling position. After starting, the pressure which builds up in pipe 24 is slowly transmitted through the thin pipe 25, to move piston 20 to the right and reduce the amount of idling air, the time of transmission depending upon how cold and viscous the lubricant is before starting. The pipe 25 may be heated by the engine coolant so that the operation of the piston 20 is also dependent upon the temperature of the coolant. In a modification the stop 18 is controlled by a thermostat subjected to the temperature of the lubricant. The stop 18 may co-operate with a valve in a separate idling air passage
Patent GB-406618-A (GB)
Title: Photographic roll-films
IPC: B64B1/00
Filed: 1933-10-19
Abstract: 406,618. Photographic roll - films. VOIGTLANDER & SOHN AKT.-GES., 7, Campestrasse, Brunswick, Germany. Oct. 19, 1933, No. 28937. Convention date, Oct. 31, 1932. [Class 98 (i).] A roll-film comprises a sensitized strip, a strip of protective backing material which is attached to the tail end of the sensitized strip, and a gummed strip attached to the tail end of the backing strip, the backing strip having a weakened line or being perforated along a line extending transversely of and crossing the gummed strip. As shown, the protective backing strip 1, which is attached to the tail end of the sensitized film in the usual way, is provided with a gummed strip 4 attached thereto at 3, and has a weakened line 5 disposed transversely of and crossing the strip 4 to permit the end of the backing strip to be readily torn off.
Patent GB-640294-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/36
Filed: 1947-10-30
Abstract: 640,294. Suction cleaners. EUREKA WILLIAMS CORPORATION. Oct. 30, 1947, No: 28977. Convention date, Dec. 23, 1946. [Class 8(i)] [Also in Group XXXV] A tank type suction cleaner comprises a generally flat horizontal base 10 of moulded plastic having integral upstanding portions supporting a motor 18 and forming at least part of fan chamber cavity 40 and extending to form the lower part of a dirt collecting and filtering space 16; a cover 44 over the cavity 40 forms a fan chamber, and a hood 12 on the base 10 forms at least part of a casing having walls surrounding the space 16 and cavity 40, an air inlet 24 to the space 16 and fan chamber, and a blowing outlet 24<SP>1</SP>. An inlet end cap 14 is detachably secured to the casing by a hook 62 and a keeper 70 engaging a lug 68 and a latch 74 respectively. The cap also provides a seating 92 for a filter bag ring 96 held by a latch 98. Runners 50 are integral with the plastic base 10.
Patent GB-466103-A (GB)
Title: Improvements in or relating to ramps, inclines and the like for connecting floors at different levels
IPC: E04H6/10
Filed: 1935-10-21
Abstract: 466,103. Ramps. HOENIG, E. Oct. 21, 1935, No. 29036. [Classes 20 (i) and 20 (iv)] A ramp for connecting floors, platforms or decks at different levels in buildings or ships is provided along the whole or major part of its length with laterally sloping parts so that it is accessible by vehicles not only at the ends but also at the sides. In the construction shown the ramp connects two floors 1, 2, separated by walls 6. The parts of the ramp which are at the same level are connected by contour lines ; thus, the ramp is accessible from any direction. The walls 6 may extend upwardly above the upper portions 4<1> of the ramp to provide safety walls 7. A number of decks or floors can be connected by a single ramp if the gradient of the ramp can be made sufficiently small and yet intersect all floors and decks. In a modification the ramp is accessible from one side only and/or over the major part only of its length. Specifications 464,640, [Group XXXIII], and 466,102 are referred to.
Patent GB-1479931-A (GB)
Title: Controlled rectifier system and gate control circuit therefor
IPC: H02M7/162
Filed: 1974-07-01
Abstract: 1479931 Controlling rectifiers CUTLERHAMMER EUROPA Ltd 1 July 1974 [5 July 1973] 29110/74 Heading H2F In a gate control circuit for a controlled rectifier, a first input terminal 1A receives an A.C. synchronizing signal, the control angle being varied over a range by a phase-adjusting control signal at a second terminal 6 and a further pair of terminals LM are linked to extend both the lower and upper limits of the range of phase control. As described, three trigger circuits for the thyristors SCR1, SCR3, connected to the D.C. side of one polarity, are mounted on a common printed circuit card. At the beginning of each half cycle, transistors Q2-Q5 are conductive, maintaining C2 discharged. The circuit is synchronized from two secondaries S1, S6 of transformer TR, the voltages being superimposed by resistors R2 ... R4 and phase shifted by C1. When the combined alternating voltage is sufficient to turn on Q1, Q2 and Q4 are turned off, allowing C2 to charge via Q3. When the resulting ramp reaches the voltage required to break down Zener diode ZD2, Q4 is turned on, turning off Q5, turning on Q6 and pulsing SCR1 via transformer GT1. The slope of the ramp is determined by an input at. 6 which is a function of the desired output. If the ramp across C2 is insufficient to break down Zener diode ZD2 near the end of a half cycle, the turning off of Q1 by the synchronizing A.C. will turn on Q4, and thus generate a back stop triggering pulse. External terminals 1G, 1H are provided for connection to corresponding terminals of another card so as to turn on an appropriate thyristor of a fully controlled bridge (Fig. 6, not shown). A link may be connected between external terminals L, M to bias Q1 so as to extend both the lower and upper limits of phase control. Supply to reversible D.C. motors.-Fig. 4 (not shown) relates to a pair of Y-circuits each comprising three thyristors and coupled to a D.C. motor via an inter-phase reactor. Each thyristor has a respective trigger circuit of the form shown in Fig. 1, the three trigger circuits relating to thyristors for one direction of rotation being mounted on common printed circuit cards. A 20 degree regenerative commutating phase margin is suggested. Fig. 8 shows a circuit for extending the later end of the ramp across C2 only in the low motor current range. Terminals A<SP>1</SP>, E<SP>1</SP>, F<SP>1</SP> are connected to the corresponding terminals of the trigger circuit shown in Fig. 1, C4 providing sufficient phase shift to delay the end of the ramp across C2. This delay is inhibited by transistor Q8 in response to the armature current passing through resistor R A  at high motor speed. Modifications.-In Fig. 6 (not shown) the A.C. synchronizing voltage is derived from a single respective secondary of transformer TR so that the system is insensitive to the direction of line phase rotation.
Patent GB-1413948-A (GB)
Title: Securing device for frieght containers
IPC: B64D9/00
Filed: 1974-07-01
Abstract: 1413948 Releasable fastenings MESSER SCHMITT - BOLKOW - BLOHM GmbH I July 1974 [9 Aug 1973] 29159/74 Heading E2A In a securing device with a pivotable retaining hook 11 for holding a freight container 1 there are means connected with the hook and adapted to be contacted by the container to lower the hook, the latter being restored to a raised position after the container has passed over the said means. As shown, the hook is pivoted on a shaft 13 and is connected by a pin 14 to an arm 5 of a lever 4, pivoted on a shaft 7 and having a stirrup 8 formed with oblique surfaces 9, 10 and which when contacted by the container 1 is moved downwardly to retract the hook below the deck 3. Rollers 16, 17 rotatable about vertical axes 18, 19 and connected to and pivotable with the lever act as guides for the container, and the hook is pivoted under the action of a spring so that the nose 12 thereof lies behind a front edge of the rollers upon disengagement of a claw 29 from a fork 28 carrying the hook whereafter the hook is engaged in a pocket 2 of the container.
Patent GB-1479295-A (GB)
Title: Disinfecting method
IPC: F24F8/24
Filed: 1974-07-01
Abstract: 1479295 Disinfecting method DRAGERWERK AG 1 July 1974 [30 June 1973] 29173/ 74 Heading A5G A disinfecting method for disinfecting e.g. medical apparatus contained in a disinfecting chamber 1 comprises the steps of (a) heating and circulating air containing an evaporated or atomized chemically-acting disinfectant e.g. formaldehyde in the chamber by means of a fan 9 and a heater/evaporator 11 while the chamber is closed off from the ambient atmosphere, (b) scavenging the chamber with fresh air by opening valves 5 and 8 and operating the scavenging fan 4, air being drawn in through filter 7 and expelled through outlet 6, (c) closing valves 5 and 8 and heating and circulating the air contained in the chamber to evaporate residues of the disinfectant, and (d) again opening valves 5 and 8 and scavenging the chamber with fresh air. The scavenging step (d) may be followed by a step in which the air in the chamber is enriched with a substance which fixes or decomposes the disinfectant, e.g. by evaporating ammonia from evaporator 12, followed by a further scavenging with fresh air and/or the steps (c) and (d) may be repeated several times.
Patent GB-345971-A (GB)
Title: Improvements in and relating to feed press or dabbing rollers of the drawing rollerssets of preparing and spinning machines
IPC: D01H5/74
Filed: 1929-09-26
Abstract: 345,971. Drawing - apparatus for preparing and spinning machines. ETABLISSEMENTS MOTTE-DEWAVRIN, 31, Rue des Anges, Tourcoing, Nord, France. Sept. 26, 1929, No. 29219. Convention date, Nov. 26, 1928. Void [Published under Sect. 91 of the Acts]. [Class 120 (ii).] "Feed press or floating or dabbing rollers for pressing slivers or " tufts of fibres" into the "circular comb of drawing-apparatus for spinning and preparing machines for wool comprise sleeves 2, which are independent of their axles 1 so that the weight of the sleeve only is operative on the fibres, and are supported by bushes 3, 4, of which one is fixed on the axle and the other is removable by being screwed thereon or, as shown in Figs. 4 and 5, is normally pressed by a spring 7 against a cross-pin 9 in the axle engaging slots 8 and may be removed by giving it a quarter turn so that by means of slots 10 it may slide over the cross-pin, or both bushes may be fixed on the shaft.
Patent GB-803754-A (GB)
Title: New or improved hook-like suspension means incorporated with garment bags or garment hangers
IPC: A47G25/54
Filed: 1954-10-11
Abstract: 803,754. Hooks. KRANTZ, H. Oct. 11, 1955 [Oct. 11, 1954], No. 29229/54. Class 89(2) [Also in Group XIV] A hook - device for suspending a garment - bag 2, Fig. 1, or a garment-hanger, comprises a wire-hook 1 fixed to the top of the bag &c. and having, pivoted to a straight part 3 thereof, a sheetmetal-hook 5, the end 6 of which is shaped to fit over a panel, e.g. an automobile-window. The swivelattachment of hook 1 to the bag may be of the form shown in Specification 618,927.
Patent GB-1197149-A (GB)
Title: Sublimation Pump
Inventor: CHADD PETER OWEN
IPC: H01J41/12
Filed: 1969-06-10
Abstract: 1,197,149. Ion pumps; gettering. MULLABDLtd. 10 June, 1969, No. 29278/69. Heading H1D. A sublimation pump assembly comprises first and second mechanically interconnected clamps 6 and 21 for the ends of a filament 23 of sublimable material, said clamps each being electrically connected to a different one of a pair of supply terminals 24, 28, clamp 6 being mounted for displacement towards and away from clamp 21 by two flexible laminated strips 14, 15 of electrically conductive material. Thermal expansion and contraction are thus permitted without deformation of the filament. The strips 14 and 15, which each comprise eight copper leaves, are connected at one end to a pillar 9 supporting the clamp 6 and at the other end to a pillar 18 mounted on a plate 19 carried by a pillar 1 supported by brackets 2 on a plate 3 and connected to a terminal 24. Clamp 21 is supported on a pillar 26 supported in, but electrically insulated from, the plate 3 and connected to terminal 28. The filament 23 is of Ti-Mo alloy, and the pillars 1, 9, 18, 26 and plate 3 are of stainless steel. Three filaments (two only being shown) are supported symmetrically around the pillar 1.