baber/WOPTO huggingface dataset:
Patent GB-660778-A (GB)
Title: Improvements in roasting of sulfide ore
IPC: C22B1/10
Filed: 1949-12-29
Abstract: <PICT:0660778/III/1> Sulphide ores, e.g. of zinc, copper and iron, are roasted by introducing the ore particles having a size within the range of through 6 and on 65 mesh into the upper portion of a vertically disposed grateless chamber 1, and maintaining the mass in the form of a fluid column by introducing air at vertically spaced intervals within the chamber, e.g. through pipes 4, 5, 6, the introduction being such as to provide different degrees of agitation in at least two zones.  The apparent density of the mass in the three zones A, B, C may be 75-90 per cent, 55-75 per cent and 50-60 per cent respectively that of the bulk density of the ore particles.  The chamber may be enlarged at the top to form a zone D, having about the same activity as zone B.  This fourth zone prevents loss of fine particles blown upwardly, and constitutes a preliminary roasting stage.  Air is supplied to this zone through pipes 13.  In a modification, upper chamber 3 is continued as an upper roasting furnace, which is further enlarged at the top, so that there may be formed further zones corresponding to zones B, C, D.  The furnace is surrounded by a jacket 10 for cool air, water &c. or for heating gas. Fine ores may be aggregated by wetting with sulphite liquor and extruding; other binders specified are zinc sulphate and bentonite. The plastic mass may alternatively be pressed between rollers.  The amount of air used in the process is up to 1.5 times, and suitably 1.1 times, the theoretical amount.  For zinc sulphide ores, roasting temperatures of 900-1200 DEG C may be used.
Patent GB-521501-A (GB)
Title: Improvements in tubular struts
IPC: E21D15/20
Filed: 1938-11-16
Abstract: 521,501. Posts adapted to be jammed between opposed surfaces. SCAFFOLDING (GREAT BRITAIN), Ltd., and JONES, D. H. Nov. 16, 1938, No. 33307. [Class 20 (i)] A telescopic strut for extending between wallings in excavations comprises a notched inner tubular member 10 with a rotatable head 23, an outer tubular member 11 with a spring-pressed pawl 16 to engage the notches 12 in the inner member to provide for rough adjustment, and a second head 23 with a screwed stem 24 engaging a tapped hole in a bush 30 screwed into the outer end of the outer member to provide a fine adjustment. Relative rotation, between the tubular members is prevented by a projection 21 on the outer member engaging a slot 20 in the wall of the inner member. The prop is rotated for fine adjustment by means of a tommy rod passing through apertures in the outer member.
Patent GB-284206-A (GB)
Title: Improvements in the production of sulphonated oils and fats with a high content of organically combined sulphuric acid
IPC: C11C3/00
Filed: 1927-08-04
Abstract: 284,206. Flesch, H., (Assignee of Farbund Gerbstoffwerke C. Flesch). Jan. 24, 1927, [Convention date]. Addition to 282,626. Sulphonation of oils and fats or their fatty acids by means of sulphur trioxide or chlorsulphonic acid is affected in the presence of lower fatty acids other than glacial acetic acid, such as formic, propionic, butyric or lactic acid in anhydrous condition, or the anhydrides of lower fatty acids, such as acetic, propionic, butyric anhydride or the acid chlorides of these acids.
Patent GB-996286-A (GB)
Title: Improvements in or relating to intake systems for internal combustion engines
IPC: F02B75/02
Filed: 1961-09-18
Abstract: 996,286. Carburetters; air intake silencers. A. KREIDLER. Sept. 18, 1961 [Sept. 17, 1960], No. 33349/61. Heading F1B. In an air intake system for port-controlled two-stroke cycle internal-combustion engines of the kind having crankcase compression and a carburetter, the carburetter is provided with a filterless air inlet funnel 2 which narrows in the inlet direction and extends from the carburetter into a chamber 3 provided with a fixed end wall 5 extending across and spaced from the opening of the funnel and possessing a degree of air permeability. The end wall may separate the chamber from one or more successive interconnected chambers. The chambers and the funnel may be made of or lined with a vibration damping material. As shown the piping 7 connects the chamber 6 to a further chamber in the frame 8 of a vehicle.
Patent GB-342357-A (GB)
Title: Improvements in composite sheets
IPC: E04C2/292
Filed: 1929-11-02
Abstract: 342,357. Metal-faced plywood sheets. VENESTA, Ltd., North Woolwich Road, Silvertown, and PORTCH, H. T., 31, Eagle Mansions, Salcombe Road, both in London. Nov. 2, 1929, No. 33417. [Class 145 (ii).] In a composite sheet material consisting of plywood A, faced with metal sheets B, C, the edges of the plywood are enclosed by bending the ends of one or both metal sheets extending beyond the plywood core over metal strips D laid along the edges. The overturned ends of the metal sheets may be secured to the metal strip for example by soldering.
Patent GB-1004002-A (GB)
Title: A graduating apparatus of optical interference type
IPC: G01B9/02
Filed: 1961-09-19
Abstract: 1,004,002. Photo-electrically controlled dividing engines. AGENCY OF INDUSTRIAL SCIENCE AND TECHNOLOGY, MINISTRY OF INTERNATIONAL TRADE & INDUSTRY. Sept. 19, 1961 [Sept.20, 1960], No. 33450/61. Headings G1A and G1X. A dividing engine in which graduations are marked withthe aid of an interferometer is provided with a further interferometer which maintains its own path length substantially constant. The scale blank to be divided, 28, is mounted on a carriage 29 which also carries a corner reflector 9 and is moved by driving means 34. Light from a krypton 86 light source is collimated and monochromated before being split by a device 6 to prodice two beams incident respectively on the reflector 9 and a similar fixed reflector 10. The reflected beams interfere on recombination at device 6, and the fringes produced are counted by a photo-cell 14 and counter 33. When a predetermined number of fringes have been counted, driving means 34 is stopped and the graduating mechanism 27 actuated. The further interferometer 19 comprises half silvered plates inclined at a very slight angle and separated by the same material as constitutes the scale blank 28. Light from a mercury lamp 15 forms fringes by multiple reflections in 19. A mercury light source is used and the distance between the plates is chosen so that all the principal mercury lines in the range of sensitivity of the Sb-Cs photo-cells 23 and 24 produce coincidental fringe at the centre of prism 22. Any difference in output between the cells 23 and 24 controls a pressurizer 32 to keep the fringe centred on the prism 22.
Patent GB-642769-A (GB)
Title: Improvements in or relating to a parachute and method of launching same
IPC: B64D17/64
Filed: 1947-12-19
Abstract: 642,769. Parachutes. FRIEDER, L. P. Dec. 19, 1947, No. 33606. Convention date, Dec. 27, 1946. [Class 4] A parachute 16 is launched by a pilot parachute 12 attached only to its outer rim. The parachute is stowed with its crown at the pack bottom and its rim at the top. This arrangement is stated to prevent streaming and to reduce the inflation time.
Patent GB-429758-A (GB)
Title: Improvements in or relating to electro-magnetically operated mercury switches
IPC: H01H29/22
Filed: 1933-12-04
Abstract: 429,758. Electromagnetic and mercury switches. HAMMOND, F. M., 165, Willerby Road, Hull. Dec. 4, 1933, No. 33981. [Class 38 (v)] An electromagnetically - operated mercury switch has a pivoted armature arranged to move freely between two fixed electromagnets the upper end of the armature having a lateral pin at the upper extremity which engages a hooked projection depending from the pivoted carrier of a mercury switch so that when the armature is attracted by a momentary energization of one of the electromagnets. As shown in the Figure an armature P pivoted at Q is adapted to be attracted alternately to one or other of a pair of electromagnets V, W on operation of the corresponding control switch X, Y. The armature P carries a lateral pin O which during its movement engages a depending hook L of a tiltable mercury switch to make or break a controlled circuit P, C. The mercury switch comprises an insulating tube A into the ends of which is screwed a metal plug B formed with an extending terminal B<1> connected to the controlled circuit by a flexible lead E, the mercury switch is tilted over a dead centre position and can complete its tilting movement and the armature movement under the influence of gravity. A casing fitted with suitable terminals is provided for the switch. The ends of the electrodes projecting into the mercury are flattened to improve the electrical make and break therewith. The other end of the tube is of insulating material and carries a contact D with terminal D<2> and flexible lead H so that when the tube is tilted in the opposite direction to that shown a body of mercury Hg flows between the contact D and plug B. To improve the contact between the mercury and the plug B the latter is provided with a ridge B<2> and to improve the make and break between the contact D and the mercury, the contact has a downturned flattened end D provided with a sharp edge for penetrating the mercury surface. The mercury switch is mounted in a carrier on frame J pivoted at K and having a downwardly-projecting hook L engaged by the armature pin O. On movement of the armature the tilting of the mercury switch over the dead-centre position ensures a completion by gravity of the movement of the parts.
Patent GB-1159116-A (GB)
Title: Foundation Garment
IPC: A41C1/00
Filed: 1966-07-28
Abstract: 1,159,116. Foundation Garments. FLEXNIT CO. Inc. 28 July, 1966 [6 June, 1966], No. 34053/66. Heading A3V. A girdle, panty girdle or corselette for male or female wear comprises an outer shell 32 which is stretchable at least horizontally and. an inner abdominal belt 34 comprising a rear horizontally stretchable portion 60 joined at the sides of the garment to diagonally stretchable front portions 70 interconnected by vertically stretchable panel 72. The belt 34 is joined to the shell 32 along their upper edges apart from a rear region where a segmental portion of the shell is cut away and the upper edge of the shell is unconnected to the belt. Stitched to the lower edge (66) of the rear belt portion (60) is the upper edge of a vertically stretchable panel (59) or (59<11>) (Figs 4 and 8 not shown) or pair of panels (59<1>) (Fig. 6 not shown). The garment may include a detachable crotch panel or two panels with overlapping free edges.
Patent GB-1138238-A (GB)
Title: Process for preparing hydroxydiphosphonic acids from elemental phosphorus and carboxylic acids
IPC: C07F9/38
Filed: 1966-07-29
Abstract: 1,138,238. Hydroxydiphosphonic acids. PROCTER & GAMBLE CO. 29 July, 1966 [29 July, 1965; 31 May, 1966], No. 34223/66. Heading C2C. Hydroxydiphosphonic acids are prepared by (a) dispersing yellow or white phosphorus in an organic medium containing or consisting of a carboxylic acid, (b) introducing an oxidizing gas into the dispersion with vigorous mixing to form in situ an acid anhydride of trivalent phosphorus which then reacts with the carboxylic acid to form phosphite intermediates, (c) maintaining the reaction mixture at 70-170 C. either during or subsequent to the oxidizing step (b) or both to convert the phosphite intermediates to compounds containing P-C bonds and (d) hydrolysing the mixture with water to form a hydroxydiphosphonic acid. The carboxylic acid can suitably be an aliphatic mono- or poly-carboxylic acid having 2-30 carbon atoms, acetic acid being especially preferred. The acids may also be hydroxy or other substituted acids, e.g. phenylacetic acid or hydroxyacetic acid, and may be saturated, unsaturated, straight chain or branch chain. Mixtures of the above classes of acids may also be used. The preferred proportion of acid to phosphorus is 2-25 carboxylic groups per mole of phosphorus (P 4 ). The phosphorus should be dispersed in a finely divided state in the organic medium, optionally with heating, to give a particle diameter of preferably less than 2 cm., the term " dispersion " being defined as including any suspensions of finely divided solid or liquid particles in a liquid medium, the particles being of colloidal dimensions or larger, and molecular dispersions. The oxidizing gas may be oxygen and/or ozone, or air and may be added stepwise or incrementally, preferably at 20-140 C. The oxidizing step may be carried out in a stirred tank or a series of stirred tanks or with the oxidant gas flowing countercurrent to the dispersion in an agitated column. The phosphorus and acid may be reacted in the presence of a diluent such as excess acid, (C 3 H 7 ) 2 SO 2 , sulpholane, tetrachloroethane, (C 4 H 9 ) 2 O and diglyme. The free acid product may be neutralized with a base, e.g. NaOH or KOH, to form the corresponding salt. The hydrolysis step is suitably carried out at 90-170 C. When the carboxylic acids are solid at room temperature, a solvent may be used such as hydrocarbons, ethers and halogenated hydrocarbons such as CCl 4 , CS 2  and chlorobenzene. The solvent may also be selected from the diluents mentioned above.
Patent GB-803116-A (GB)
Title: Improvements in or relating to cleaning apparatus for carding machines
IPC: D01G15/76
Filed: 1956-11-09
Abstract: 803,116. Carding machines. MANUFAKTUR AKTIEBOLAGET I MALMO. Nov. 9, 1956 [Nov. 29, 1955], No. 34396/56. Class 120(1) An apparatus for removing waste from the card clothing on rotatable drums in carding machines comprises a toothed cylinder 1, Fig. 3, mounted for rotation in a housing 6 with a slot 7 uncovering an arcuate portion of the cylinder and extending along the whole length thereof, the cylinder being driven by a compressed air turbine mounted in the housing. The turbine rotor 17 is connected by gears 12, 10 to the cylinder. Air is supplied to the turbine through a duct 20, Fig. 1, and is discharged into a conduit 24. Extending along one margin of slot 7 and opening into the slot by means of a narrow orifice extending along the length of the slot. Adjacent the opposite margin of the slot, casing 6 communicates with a suction hopper 26 connected by a conduit 27 to a suction fan (not shown). In operation, the apparatus is held by a handle 41 and duct 20 against a moving card drum with sliders 28, 29 in contact with the clothing. The drum teeth 5 remove the card waste and throw it towards suction hopper 26; discharge of the waste is aided by the turbine discharge air which flows across slot 7 in the direction of rotation of teeth 5. The depth of engagement of teeth 5 with the card clothing is controlled by adjustment of slider 29 by means of eccentrics 44, 45 operated by a handwheel 42.
Patent GB-507488-A (GB)
Title: Improvements in or relating to acid resistant apparatus for the storage, transport or treatment of liquids
IPC: B65D85/84
Filed: 1937-12-14
Abstract: 507,488. Pipes. MONCRIEFF, R. W., and RICHMOND, A. Dec. 14, 1937, No. 34565. [Class 99 (ii)] [Also in Groups IV, II, XVII and XXIX] Apparatus for the transport or treatment of liquids, e.g. pipes, is given a surface resistant to aqueous acetic acid, by forming on the surface a coating comprising an acetate of cellulose of acetyl value about 58 per cent or more. Where the surface to be coated is one to which the cellulose acetate does not readily adhere, e.g. when a surface of iron or other metal is to be coated, it is advantageous to apply one or more priming compositions containing, e.g. nitrocellulose or a synthetic resin. In an example, a wooden vat is coated with a solution of cellulose triacetate in chloroform. According to the Provisional Specification, the surface may be coated with a cellulose ester or ethercontaining a high proportion of ester or ether groups. Nitrocellulose, cellulose formate, propionate, butyrate, acetate - propionate and acetate-butyrate, and benzyl cellulose are referred to. Specifications 207,562, 298,608, 308,322, 308,323, 309,201, 312,095 and 312,096, [all in Class 2 (ii)], are referred to.
Patent GB-195156-A (GB)
Title: Improved constructional toy
IPC: A63H33/12
Filed: 1921-12-23
Abstract: 195,156. Watts, R. Dec. 23, 1921. Mechanical constructions, details for building up.- The metal strips for toy constructions are each formed with a slot or slots according to the width of the strip extending practically the whole length of the strip, as shown in the figure, and with graduations on one or both sides to facilitate their adjustment.
Patent GB-1377916-A (GB)
Title: Vehicle hydraulic braking system
IPC: B60T8/42
Filed: 1973-07-20
Abstract: 1377916 Anti-skid systems AISIN SEIKI KK 20 July 1973 [25 July 1972] 34813/73 Heading F2F An automobile hydraulic braking system has a modulator valve 10 controlling wheel brake pressure and fed from a power source via a cutout valve 32 and an actuator valve 36, the valve 32 interrupting the supply to the valve 36 when no braking effort is required. A tandem master cylinder 12 with a booster 11 directly operates front wheel cylinders 16 and rear wheel cylinders via the modulator valve 10. When there is no supply to the valve 10 from the power source, a ball valve 66 is held clear off its seat so that communication is allowed to the cylinders 15 from the master cylinder 12. Upon a prede. termined threshold pressure being attained by the master cylinder 12, a switch 44 is actuated to actuate a solenoid of the cut-out valve 32 to allow communication from the power source, a pump supplied accumulator 29, to the valve 36. The switch 44 comprises a plunger associated with a diaphragm, and depressed thereby at the threshold pressure to contact a terminal. In the cut-out valve 32, when actuated, a small valve body is lifted by a plunger allowing pressure increase at the valve outlet, thus causing a larger valve body to lift. The modulator valve 10 is fed directly into one chamber 77 from the cut-out valve 32 and via the valve 36, which is controlled by a computer 41 receiving wheel skid signals, into another chamber 81. With both supplies, a piston 82 balances a spring 79 to keep the ball valve member 66 off its seating. However, if a modulating signal is received by the valve 36, a spool 95 is actuated by a solenoid 98 to communicate the inlet with a reservoir 40 so as to reduce pressure in the chamber 81; the piston 77 moves leftwardly allowing the spring 79 to seat the ball member 66 to shut off brake cylinder communication and then to move a plunger 71 to increase a chamber volume to reduce the brake pressure. A spool 106 in the valve 36 is controlled by a secondary solenoid 99 which is controlled by the computer 41 to allow. fluid release optionally via a restriction 111 to decrease the brake pressure reduction rate. A checking device 84 is provided in the valve 10. The switch 44 may be directly actuated from the master cylinder pedal, or the cut-off valve 32 may be so actuated. Alternatively, the cut-off valve 32 may be controlled by the computer 41 to allow through-flow only when a skid is imminent.
Patent GB-1443716-A (GB)
Title: Bracket structure for conveyor guide rail
IPC: B65G21/20
Filed: 1973-07-20
Abstract: 1443716 Supporting articles on endless conveyers SIMPLIMATIC ENG CO 20 July 1973 [1 Sept 1972] 34822/73 Heading B8A [Also in Divisions E2 and F2] Side support rails 24<SP>1</SP> for articles being conveyed on an endless belt or chain (not shown but adapted to be supported on surfaces 10b, 12b, of a mounting 10), are carried by brackets 40a, 42a, which have respectively inwardly extending tongue portions 40b, 42b, which are locked together within respective apertures 50, 52, formed in the mounting 10. As shown, the apertures 50, 52, open into a rectangular tubular portion 42, welded to respective sides of the mounting 10. Wedges 56, 58, are drawn together by a bolt 62 so as to frictionally lock the tongues to respective opposed walls of the tubular portion 42. When the mounting 10 is wider than that shown, two separate arrangements of wedges and bolts 62 may be used. In any case the tongues may overlap and may be wedged against only one face of the portion 42.
Patent GB-997466-A (GB)
Title: Nickel electroplating baths
IPC: C25D3/12
Filed: 1963-09-04
Abstract: A nickel plating bath includes as levelling agent a condensation product, free from sulpho groups, of an organic di- or poly-amide and an oxo-compound, e.g. urea or derivatives, guanidine, biuret, dicyandiamide, methyl diamino triazine, melamine, melan, or ammeline condensed with formaldehyde, crotonaldehyde, acetone, acetophenone, benzaldehyde, cyclohexanone, and methylal.  Condensation may be effected in the presence of amino-acids, e.g. glycocoll, alanine, glutamic acid and phenols. Brightening agents may also be added, e.g. sulphonamides, and also alkyl pyridinium halides which improve the levelling action. Examples of condensation compounds are: (1) guanidine, formaldehyde, glutamic acid; (2) guanidine carbonate, formaldehyde, p-aminophenol, or salicylic acid.  Decyl or hexyl pyridinium bromide and N-acetyl toluene sulphonamide are added to form a bath also containing metal salts.
Patent GB-1450144-A (GB)
Title: Transfer material
IPC: D06P5/28
Filed: 1973-07-23
Abstract: 1450144 Transfers IMPERIAL CHEMICAL INDUSTRIES Ltd 26 June 1974 [23 July 1973] 34902/73 Heading B6C [Also in Division D1] A transfer material comprises a support carrying a print layer of one or more sublimable disperse dyestuffs and a thickener or binder. Superimposed on this print is an overall layer which has been prepared from a water-in-oil emulsion containing polyvinyl alcohol in. the aqueous phase, and ethyl cellulose or ethyl hydroxyethyl cellulose in the oil phase, and subsequently drying. The overall layer may also contain a non-volatile dyestuff or a non- volatile optical brightening agent to enable uniformity of the coating to be checked.
Patent GB-1283519-A (GB)
Title: The separation of conjugated diolefins
IPC: B01D11/04
Filed: 1970-07-17
Abstract: 1283519 separating conjugated dienes SNAM PROGETTI SpA 17 July 1970 [18 July 1969] 34914/70 Heading C5E Conjugated dienes are separated from hydrocarbon mixtures by extraction or extractive distillation with a morpholine derivative having an oxygen-containing substituent, e.g. N-formyl morpholine. A hydrocarbon mixture containing at least one acyclic conjugated diene may be subjected to a first extraction or extractive distillation so as to remove the less polar components (e.g. saturated hydrocarbons and monoolefins) and then to a second extraction or extractive distillation so as to remove the more polar components e.g. cyclic conjugated dienes, acetylenes or carbonyl compounds. Two or more acyclic dienes recovered from the second stage may be separated from each other by subsequent rectification. The morpholine derivative may be used in aqueous mixture e.g. up to 20 wt. per cent water. Examples describe the separation of butadiene, isoprene piperylene and cyclopentadiene from various mixtures.
Patent GB-301397-A (GB)
Title: Improvements in or relating to apparatus for the electrical transmission of sound
IPC: G03B31/00
Filed: 1928-03-22
Abstract: 301,397. Electrical Research Products, Inc., (Assignees of Reynolds, .7. L.). April 1, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Divided on 288,142. Drawings to Specification. Multiple machines.-In the electrical transmission of recorded sound wherein the current produced from one record may be blended with that from another for delivery to a common amplifying circuit, provision is made whereby each record may be reproduced separately and its volume output controlled. The description and drawings are identical with those of Specification 288,142 to which the following description applies. When the switch 49, Fig. 1, (see Abridgment 288,142) is closed, only one of the records 2, 3 is delivered to the output circuit, the volume being controlled by the number of sections A, L of the artificial line put into the circuit by adjustment of the rotary switch S.