baber/WOPTO huggingface dataset:
Patent GB-225107-A (GB)
Abstract: 225,107. Elfverson, A. R. March 24, 1924. Circular machines.-To prevent the thread guide of a hand-operated machine from making a complete revolution during reversal to form heels and toes of stockings &c., a stop or stops 3 for limiting the movement of the guide is mounted on a flap 2 pivoted to the bobbin stand plate 6 and the flap is turned down against the action of a spring into the position shown in full lines and held there by a catch. The stop 3 may be made of india-rubber.
Patent GB-1132848-A (GB)
Title: Improved jib crane
IPC: B66C23/20
Filed: 1965-05-27
Abstract: 1,132,848. Jib cranes. J. G. AITKEN. 10 June, 1966 [27 May, 1965], No. 22536/65. Heading B8B. A jib crane comprises a vertical support post 1 and a jib 4 pivotally mounted thereon at 3 and having a downwardly depending arm 5. The lower end of the arm 5 mounts an arcuate plate 13 with a pair of ball races 12 for engagement in an annular groove 8 in a support plate 7 attached to the support post 1. The outer races of the ball races 12 are arranged to run on corner shoulders 9, 10 of the groove 8. The ball races may be replaced by wheels, balls or rollers.
Patent GB-1109253-A (GB)
Title: Two-ratio gearing for a motor vehicle drive
IPC: F16H3/56
Filed: 1965-05-27
Abstract: 1,109,253. Change speed gear; disc brakes. KLOCKNER-HUMBOLDT-DEUTZ A.G. 27 May, 1965 [30 May, 1964], No. 22562/65. Headings F2D and F2E. An auxiliary two-speed planet gear for a motor vehicle comprises a direct drive one-way clutch 8 between input and output shafts 1, 9 and a stepped planet train 13 which bridges the clutch for overdrive ratio. The stepped planets 15, 16 mesh suns 4, 17 on the input and output shafts 1, 9 and the planet carrier 13 is held by a brake 42 for overdrive ratio. Brakes.-As shown the brake 42 comprises a rotatable disc 33 which is clamped between a housing 30 and presser plate 39 by springs 44. The brake is released by axial movement of the inner ends of levers 47 which act through bolts 46 to draw the presser plate 39 away from the disc 33 whereupon the latter is moved away from the housing 30 by a spring 35. In Fig. 2 (not shown) a multidisc electromagnetically operated brake comprises rotatable discs 50 interleaved between discs 55 and an armature plate 56 splined to a housing 53. The brake is engaged by energizing an electromagnet 60. Control.-When the electromagnetically operated brake is used to hold the planet carrier the electromagnet 60 may be energized when the vehicle brake pedal is depressed to enforce overdrive ratio and provide engine braking.
Patent GB-204480-A (GB)
Title: Improvements in receivers for pneumatic conveyors
IPC: B65G53/60
Filed: 1922-08-21
Abstract: 204,480. Hay, W. G. Aug. 21, 1922. Pneumatic conveyers. -The receiver of a pneumatic conveyer comprises a separating chamber 1, a fixed collecting chamber 8 containing a vertically movable collector 9 which allows the escape of material from the lower end when displaced downwardly by the weight of the material, and valve means controlled by the collector adapted to open the bottom of the chamber 8 to the atmosphere to discharge the material. The outlet 2 of the chamber 1 is controlled by a main valve 3 mounted on a spindle 4 which projects from the top of the chamber. The valve may fit loosely on the spindle and be provided with a sleeve 5, or may be formed with small holes. The flow of air through the holes or sleeve is controlled by a pilot valve 6. The collecting chamber 8 is rigidly connected to the chamber 1 and the collector 9 is supported by rods 10 which pass through air-tight joints in the top of the chamber 8 and are connected by a link 11, lever 12, and link 13 to a lever 14 carrying an adjustable counterweight 16. The bottom 19 of the collector is fixed to a central rod 20 and there is a gap between it and the reduced part of the collector which forms a lateral outlet normally closed by a stationary cylindrical sleeve 17. A conical valve 22 for closing the outlet 52 of the chamber 8 is slidably mounted on the rod 20. A pilot valve 53 controls the leakage of air into the chamber 8 through holes 23. A hopper 25 is mounted on the rod 20. The projecting upper end of the spindle 4 is connected bv a link 28, lever 54, and link 27 to the lever 12. The separation of the material in the chamber 1 may be caused by changing the direction of flow of the conveying medium, or bv means of filters and an exhauster. In the latter construction the filters may be cleansed by reversing the flow of air by the following apparatus. Each filter 57 communicates with one of a set of chambers 55, 56 and has ports 30, 31 communicating with a valve casing 32 which has ports 33 - - 36 arranged at 90‹ to each other and contains a butterfly valve 39. The ports 30, 31 communicate with the ports 33, 35, respectively. The port 36 is connected to the exhauster by the pipe 38 and the port 34 communicates with the atmosphere through a valve 37. The valves 39, 37 are actuated by the movement of the collector 9 and bring each of the chambers 55, 56 alternatelv into communication with the exhauster and the atmosphere.
Patent GB-359957-A (GB)
Title: A new or improved treatment of fur skins
IPC: C14C3/06
Filed: 1930-07-28
Abstract: Acid wool, basic, and mordant dyes, dyeing with.-Fur skins are prepared and dyed by first treating them in a soap solution for a period of an hour or upwards so as to swell the skin, then chrome tanning, and finally dyeing with acid, basic, or mordant dyes in a boiling dye bath.  The soap bath may be prepared from soap containing ethylene trichloride with the addition of soda ash. The skins may be printed, or a mordant may be printed thereon and aged prior to dyeing.
Patent GB-1077947-A (GB)
Title: Electrolytic polishing
IPC: C25F3/16
Filed: 1965-05-28
Abstract: Metal surfaces are polished anodically using as electrolyte a mixture of phosphoric and sulphuric acid and one of the following namely an acid amide, an amino acid, a cyclic alcohol, and isonicotinic ester e.g. aspartic, or glutamic acid, lysine or glutamine; inositol; methyl isonicotinate.  The ratio of phosphoric to sulphuric acid is preferably 1: 1.25 to 1: 3.5 by volume.  The process is preferably operated at above 40 DEG  C. using a voltage above 7 and a current density over 5 amps / dm2.
Patent GB-222496-A (GB)
Title: An improved method for freeing the tanks and pipes or ducts of tank vessels from gas
IPC: B63B57/04
Filed: 1924-09-26
Abstract: 222,496. Mulder, J., and Endert, D. C. Sept. 28, 1923, [Convention date]. Ventilating ships.-In arrangements for freeing the tanks and ducts of oil-tankers from residual gases after the liquid cargo has been pumped off, comprising ejectors which are connected up to the ducts used for filling and emptying the tanks, the entrance of external air into the tanks is facilitated by providing the usual tank doors, which are open during the exhausting operations, with air-guiding surfaces.
Patent GB-1143946-A (GB)
Title: Process and apparatus for the manufacture of nitric acid
Inventor: SALES PETER MALCOLM
IPC: C01B21/26
Filed: 1965-05-28
Abstract: 1,143,946. Nitric acid. HUMPHREYS & GLASGOW Ltd. 19 May, 1966 [28 May, 1965], No. 22818/65. Heading C1A. [Also in Division F1] In the manufacture of nitric acid by catalytic oxidation of ammonia, the ammonia oxidation stage is performed at gas-turbine operating pressure (e.g. 3-8 atm. absolute), and the hot reaction gases at a suitable gas-turbine inlet temperature (e.g. 700-800‹ C.) are introduced into and expanded in a gas turbine without any intermediate use in steam-raising or other heatexchange operation. The reaction gases leaving the turbine are preferably at atmospheric pressure. The required gas-turbine inlet temperature is obtained either by using an appropriate proportion of ammonia to air for the exothermic catalytic oxidation, or by addition of air to the reaction gases after catalytic oxidation. In one embodiment, air from compressor 1 and ammonia are mixed in chamber 2 and passed through catalyst chamber 4. The product gases (at about 800‹ C) enter gas-turbine 5 and leave at about 500‹ C. and atmospheric pressure. The gases are then cooled by heat exchange in exchanger 6 with tail gases from absorber 7, and further cooled in cooler 9 where dilute nitric acid is condensed and removed. After mixing with further air, the gases are compressed to 9À5 atm. absolute in compressor 11, cooled in cooler 12, and absorbed in water in absorber 7 to obtain nitric acid. Tail gases (at ambient temperature and 9 atm. absolute pressure) from 7 are heated to about 450‹ C. in exchanger 6 and are expanded and cooled in turbine 13. Line 14 represents the drive-shaft of the turbine-compressor assembly, from which a total energy recovery equivalent to 120-150 KWHr per ton of 100% nitric acid produced can be obtained.
Patent GB-350795-A (GB)
Title: Improvements in welded girders
IPC: E04C3/04
Filed: 1930-07-29
Abstract: 350,795. Girders and beams. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. July 29, 1930, No. 22877. Convention date, Sept. 11, 1929. [Class 20 (iv).] Welded girders are formed with flanges composed of a single row of plates 3 .. 7 of the thickness according to stress, welded together at the abutting transverse joint and to the web 1. The web may be formed of abutting plates welded together; it may be single or double, and may have lattice openings.
Patent GB-239884-A (GB)
Title: Improvements in ovens for distilling coal and the like
IPC: C10B1/06
Filed: 1925-09-14
Abstract: 239,884. Daniels, J. Sept, 13, 1924, [Convention date]. Retort furnaces; coke ovens.- To secure uniform heating throughout a battery of ovens or retorts for distilling fuel having regenerators extending transversely below them, the heating walls are connected by a system of flues extending uninterruptedly throughout the length of the battery across the ovens or retorts at the top, the regenerator cunnections being such that inflow and outflow walls, or groups thereof, alternate. Dampers are arranged in the flues so that the flow of the gases may be regulated, and by-passes are provided so that any group of retorts can be put out of action. The horizontal retorts 20 are heated by burners 18 situated at the bottoms of the heating flues between walls 19 and supplied with gas and air through ducts 14 - - 17 from reversible regenerators 10 - - 13 disposed lengthwise in the base of the structure. Openings 22, governed by dampers 23, at the top of each heating flue communicate with a duct or flue extending along the top of each group of retorts enabling the gases to be distributed freely over the battery. In line with each flue is an inspection shaft 21, and above the openings 22 is a transverse system of ducts 34 affording a bypass for the gases when any group of retorts is isolated by closing the appropriate dampers 23. The air regenerators 11, 12 may be continuous and the gas-heating regenerators 10, 13 may be fitted with valves 31 enabling a change from gas to air to be made when the retorts are operated with rich gas. The regenerators 10, 13 may be sub-divided so that individual groups of retorts can be heated with rich gas or lean gas respectively. The application of the invention to a battery of horizontal coke ovens is also described.
Patent GB-945673-A (GB)
Title: Compositions comprising polyimides and their production
IPC: C08G73/10
Filed: 1960-06-30
Abstract: Polyamide-acid salts of silver, copper (cupric) or metals of Group II, of Group III having atomic weight at least 13, of Group IV having at. wt. at least 40, or of period 3 series 4 having at. wt. at least 24, prepared according to Specification 945,674 preferably having an inherent viscosity of at least 0.1, are converted to polyimides containing the above metals as particles having as their greatest dimension 1m  by forming into a shaped structure (fibre or film), drying, and heating to at least 50 DEG C. The preferred metals are Ag, Cu, Fe, Co, Ni, Cr and Mn.  There are at least 0.1 mole of metal per polymer unit. The thermal and hydrolytic stabilities of the products may be improved by further heating to 300-500 DEG C. for 15-120 seconds.  The conversion of the salts to polyimides may also be effected chemically.  In Example 1, which illustrates the prefered embodiment, 4,41-diamino-diphenyl-methane and pyromethitic dianhydride are condensed in dimethyl formamide, a salt formed with copper acetylacetonate in pyridine, and acetylacetone added.  A film was cast on glass, dried at 130 DEG C. for 30 min. in air, stripped off the glass and heated under nitrogen at 300 DEG C. for 30 min. Specifications 898,651 and 903,271 also are referred to.ALSO:Strippable films of polyamide-acid salts (prepared from polyamide-acids and from salts of silver, cupric, Group II metals, Group III metals of atomic weight at least 13, Group IV metals of atomic weight at least 40, and period 3 series 4 metals of atomic weight at least 24, as described in Specification 945,674) are formed by coating solutions in polar organic solvents e.g. dimethyl formamide, on to glass and drying.  In Example 1, a 4,41-diamino-diphenylmethanepyromethitic anhydride condensate in dimethyl-formamide is formed into a salt by adding copper acetylacetonate in pyridine, and additional acetylacetone added.  The mixture was centrifuged, cast on to glass plate using a doctor knife, and dried at 130  DEG C. for 30 minutes in air. Specifications 898,651 and 903,271 also are referred to.
Patent GB-201783-A (GB)
Title: An improved hand rake
IPC: A01D7/06
Filed: 1922-08-23
Abstract: 201,783. Waldron, P. B. Aug. 23, 1922. Multiple-support handles.-In a hand rake of the kind described in Specification 199,551, the handle stays c may be welded to the head b, and may be straight or curved to form a semi-circle. They may be of angular, curved, semi-circular, or other section.
Patent GB-320450-A (GB)
Title: Improvements in and relating to the physical or chemical treatment of gases with solid materials
IPC: B01D53/00
Filed: 1928-08-09
Abstract: 320,450. Morgan, J. S., and Newbould & Partners, Ltd., M. Aug. 9, 1928. Solids, treating with gases; solid absorbents for gases; catalytic apparatus.-In heterogeneous gas reactions in which a gas reacts physically or chemically with a finely-divided solid such as a catalyst or adsorbent the temperature is controlled by mixing with the solid a material of high heat conductivity. For example in the removal of substances from gases by treatment with activated carbon, metallic balls such as iron shot are mixed with the carbon. After adsorption the balls may be separated from the carbon, cooled and mixed with fresh activated carbon.
Patent GB-902479-A (GB)
Title: Image recording method and apparatus
IPC: G03G19/00
Filed: 1958-07-17
Abstract: 902,479. Printing-processes. RANK-XEROX Ltd. July 17, 1958 [July 18, 1957], No. 23019/58. Class 100 (2). [Also in Group XXXVIII] A method of superposing two recordings of intelligence for producing a printed record of the combination comprises arranging one recording as a magnetic pattern and the other as an electrostatic pattern on a member capable of retaining both patterns, each at least in certain acids, for subsequent development by attractable particles to be fixed to the member or to be transferred to a receiving medium. The magnetic pattern may be used for information to be printed on a plurality of copies and the electrostatic pattern for information to be varied, or vice versa. A rotatable drum 21 is provided with an image layer around its circumference, on which is produced a magnetic image at a recording station 31. The image layer is charged by a corona discharge electrode 37 and an electrostatic pattern formed thereon by exposure to a cathode ray tube 46. The patterns are developed by finely divided developer 54, which is a mixture of magnetically attractable and sub-electricallycharged particles, and the developer is transferred by a corona discharge device 61 to a web 56, on which it is fixed by a heating oven 64 or vapour chamber. Surplus powder is removed by a brush 65, and the electrostatic image is removed by a lamp 71. The magnetic image is removed when desired by an erase head 80. The two patterns may be developed separately in succession. Printing-surfaces.-The image layer may comprise a surface having a plurality of magnetically retentive areas or dots interspersed with a plurality of electrostatically retentive areas. Alternatively, a support base is provided with a magnetic coating and an electrostatically retentive insulating or photo-conductive overcoating. The base may be insulating or conductive, e.g. metal, paper, cloth, plastic or glass. The magnetic coating may be a metal layer or a layer of a pigment binder composition of iron powder, or magnetic oxide pigment. If the layer is photo-sensitive, the base or the magnetic layer or both are preferably conductive. The overcoating may be a photo-conductive insulating layer such as vitreous selenium, anthracene or sulphur, or a photo-conductive pigment binder layer such as a phosphor. Suitable photo-active materials are the sulphides, oxides and selenides of calcium, zinc or cadmium. The image layer may comprise an insulating layer on or constituting a supporting base, e.g. regenerated cellulose, cellulose esters and ethers, or synthetic resins such as polystyrene or polyethylene polyesters, for example a polyester film of Mylar, coated with magnetic pigment particles in a film-forming binder. Alternatively, the layer may comprise a conductive base coated with an insulating binder composition including a magnetizable pigment and a photo-conductive pigment. Specifications 902,080 and 902,081 are referred to.
Patent GB-862060-A (GB)
Title: Improvements in or relating to boxes, trays or the like made from cardboard or the like
Inventor: YOUNG HAROLD FRANK
IPC: B65D5/00
Filed: 1958-07-18
Abstract: 862,060. Cardboard boxes and trays. ASHTON CONTAINERS Ltd. July 16, 1959 [July 18, 1958], No. 23045/58. Class 18. A box, which may be made of double-faced corrugated board, is folded from the blank shown in Fig. 1 and has tongues 19, 48, Fig. 2, which engage openings 27 in the base of another box stacked thereon. In some circumstances only a single tongue or only a pair of tongues may be provided. When folding the box, as shown in Fig. 2, extensions 12, 13 on wall 5 lie against side walls 2, 4 and tongues 48, 49 on the extensions engage slits formed by bending the walls 2, 4 about fold lines 14, 15, the slits being formed around tongues 16, 19 which extend alongside the tongues 49, 48 respectively. Portions 20, 21 on panels 6, 8 on each side engage the openings 27 in the base panel thereby securing the extensions 12, 13 between the walls 2, 4 and their respective extensions. The end walls 3, 5 carry panels 7, 9 which are folded inwardly and carry portions 38 which interlock with cut-outs 34 on the panels 6, 8 of the sides. Hand holes 57, 58 are provided in the end walls. The openings 27, (see Fig. 8) have cuts 54, 55 so that a portion 56 projects downwards from each side wall to facilitate stacking. In the embodiment shown in Fig. 8, the extensions 12, 13 are replaced by gusset portions 61, creased centrally as shown having portions 62 engaging the slits formed round each tongue 16.
Patent GB-151815-A (GB)
Title: A new or improved mud-guard or leg shield device for use on motor cycles, and the like
IPC: B62J17/00
Filed: 1919-09-19
Abstract: 151,815. Wintle, E. R. Sept. 19, 1919. No Patent granted (Sealing fee not paid). Weather-screens.-A leg shield or mud-guard for motor-cycles &c. comprises a rigid shield part a hinged to a plate or part a<3> adapted to be attached to the foot-board &c. b. The hinged connexion is provided with a removable sliding pivot pin a<5>, so as to be readily separable. The upper part of the guard a is detachably connected by a clip c to a transverse bar d, which is adjustably connected to the frame by a two-part clip e. The device is provided with side wings or guards a<1>, a<4>.
Patent GB-334677-A (GB)
Title: Improvements in process of preparing zeolites
IPC: C01B33/46
Filed: 1929-07-27
Abstract: 334,677. Triggs, W. W., (General Zeolite Co.). July 27, 1929. Double silicates. - Base-exchanging substances are obtained by reacting an alkali metal silicate solution containing 0.25-2 mols. of silica to each mol of alkali metal oxide with a solution of amphoteric metal hydroxide containing 1-2.5 acid equivalents to each equivalent of amphoteric metal oxide. The desired composition of the reacting solutions may be obtained by adding for instance alkali and acid respectively to the silicate and amphoteric metal bearing solutions; or the alkali and acid may be added at. any time before gelation. Preferably the conditions are such that a gel embracing all or the major portion of the reaction mixture is obtained. The gel is dried, with or without pressing, preferably below 100‹ C. and washed free from soluble salts.
Patent GB-190763-A (GB)
Title: Machine for sewing cover-soles in the manufacture of turned shoes
IPC: D05B15/00
Filed: 1921-09-02
Abstract: 190,763. Sokal, S., (Maschinenwerke zu Frankfurt a Main, vorm. Kolb, Rieber, & Co., Ges.). Sept. 2, 1921. Boot-sole sewing-machines; rotary horns; feed by dogs; presser-bar lifting devices.-In a machine for sewing turn-shoes a supporting-horn 79, and a feed-element 81, Fig. 2, are pivoted at 83, 82 respectively and can be swung together by a connection 118 which allows independent feeding motion of the element 81. The axes of the pivots 83, 82 pass through, or nearly through, the bearing plates 79a. 87. The supporting member 74 for the horn 81 is pivoted at 93 to a slide 77, which is guided by a dovetail in an apron 73 of the base 24, and which is actuated from a cam disc 38 through a lever 66 adjustably pivoted at 64. A lateral extension 117 of the rod 74 is slidingly pivoted to a spring-pressed rod 71 which is reciprocated through a lever 75 by the cam disc 38. The work is held against the bearing plates 79a, 87 by a spring-pressed presser-foot which is forked in the direction of feed. A verticallyadjustable ledge 79<b> is mounted on the support 79 for guiding the outer sole.
Patent GB-233911-A (GB)
Abstract: 233,911. Micheli, M. de. June 18, 1924. Testing. - An electroscope for testing insulating materials has an oscillating vane instead of gold leaves and has an internal rotary frictionally-excited charging-device. A fixed rectangular plate 7 is supported by a pin 8 screwed into a metal head 9 which is attached to the casing 1 by an ebonite collar 10. In the centre of the plate 7 is an opening limited laterally by two ribs supporting a shaft which carries a pointer 13 and also two thin aluminium leaves 14, 14<1> situated in parallel planes so that in the vertical position they adhere against the faces of the plate 7. The lower leaf 14<1> is slightly heavier than the upper leaf 14 so that the normal position is vertical. The back of the case 1 is closed by a revoluble metal ring 15 having in its centre a glass 18 and carrying on its inner side an annular piece of ebonite 19 which can be rotated from the outside by rotating the disc 15. Two metal leaves 20, carried by a semi-circular metal piece 21 fastened to the casing, press pieces of wool against the ebonite ring 19 by which it is electrified when rotated. A contactpiece 23 carried by the pin 8, slides on the ring 19. The electrical charge may alternatively be applied by means of a rotating brush rubbing on the metal button 9 covered with enamel or celluloid. The instrument may be employed for distinguishing cotton from wool and pure silk from artificial silk, and also to ascertain if silk or wool have been excessively dressed. The instrument may be made of small dimensions for pocket use.