baber/WOPTO huggingface dataset:
Patent GB-269106-A (GB)
Title: Improvements in or relating to buckles
IPC: A44B11/12
Filed: 1926-12-14
Abstract: 269,106. Wade, H., (Wilson Fastener Co.). Dec. 14, 1926. Clips, lever.-A buckle fastening for connecting the ends of garter bands and the like comprises two clip members 20, 21 hinged to a body part 10, which have their gripping edges 24 complementary to the surface of the body but the surfaces adjacent these edges bowed or concave so as to stand away from the body in the open position. The clip members 20, 21 are formed with lever arms 22 at one end which extend to the other clip member and, in the closed position, rest on inward projections 14 on the body so as to lie in a plane. A depression 26 on one end of a clip member facilitates the opening of the other by inserting the, thumb below the lever arm 22.
Patent GB-758590-A (GB)
Title: Improved method of crystallizing aromatic nitro-compounds from nitric acid
IPC: C07C201/16
Filed: 1954-11-03
Abstract: Mononuclear aromatic nitro-compounds are crystallized from nitric acid of 55 to 68 per cent concentration in a quantity insufficient for a complete dissolution of the nitro-compounds during any part of the crystallization.  The crude product of a nitration process may be mixed with the nitric acid in a small mixing vessel, where incipient crystallization occurs, and allowed to run into a larger vessel where the mixture is maintained at a lower temperature, crystals being separated by filtration or centrifuging.  The mixture of nitro-compound and nitric acid may also be passed continuously through a series of three vessels at progressively decreasing temperatures, the final slurry being continuously taken to a filter or centrifuge; the mother liquor may then be cooled to a still lower temperature to obtain further crystals, which are returned to the mixing stage as such, or in solution in the nitric acid added thereto.  In examples crude products are treated to obtain (1 to 5) 2,4,6-trinitroluene, (6) a dinitrochlorobenzene product (2,4- and 2,6-dinitrochlorobenzenes), and (7) m-dinitrobenzene.ALSO:A method of crystallizing mononuclear aromatic nitro-compounds, particularly di- and tri-nitro compounds, from nitric acid, is characterized in that acid of 55 to 68 per cent. concentration is used and in a quantity that is insufficient for a complete dissolution of the nitro-compounds during any part of the crystallization.  Crude product of a nitration process may be mixed with the nitric acid in asmall mixing vessel, where incipient crystallization occurs, and allowed to run continuously into a larger crystallization vessel where the mixture is maintained at a lower temperature, and the crystals are separated by filtration or centrifuging.  The mixture of nitro-compound and nitric acid may also be passed continuously through a series of three vessels at progressively decreasing temperatures, the final slurry being continuously taken to a filter or centrifuge; the mother liquor may then be cooled to a still lower temperature to obtain further crystals, which are returned to the mixing stage as such or in solution in the nitric acid added thereto. In examples (1 to 5) 2, 4, 6-trinitrotoluene is obtained from crude product, (6) a dinitrochlorobenzene product (2, 4- and 2, 6- dinitrochlorobenzenes) is obtained from crude material, and (7) m-dinitrobenzene is obtained from crude material.  In the examples secondary products of lower solidification points are obtained on regeneration of the nitric acid solutions.
Patent GB-387065-A (GB)
Title: Improvements in and relating to marine engines and ship's propelling machinery
IPC: B63H23/00
Filed: 1931-11-17
Abstract: 387,065. Dynamo-electric machines aiding prime movers. JOHNSON, E. M., 33, Poplar Grove, Brooklands, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Nov. 17, 1931, No. 31829. [Class 38 (iv).] A marine power plant comprises a main engine 2 coupled to the propeller 1 and an auxiliary engine 5, driving motive fluid from a source independent of the main engine, is coupled by an electric generator 4 to a motor 3 on the propeller shaft. A device 9 responsive to the auxiliary engine speed is employed to cut out the auxiliary engine when its speed exceeds a predetermined limit and at the same time to control the electric transmission so as to prevent either machine supplying current to the other. The device 9 may be an ordinary speed governor which acts upon the throttle of the engine 5 either directly or through a relay system. It also includes electric contacts 10 which govern the connection of the bus-bars 8 with the operating coil 11 of a circuit breaker 12 in the circuits of the armatures 6, 7 of the motor 3 and generator 4. Specification 321,142, [Class 114, Ships &c., Propelling &c.], is referred to.
Patent GB-768167-A (GB)
Title: Improvements in or relating to filters for gas
IPC: B01D46/24
Filed: 1954-11-04
Abstract: 768,167. Air intake silencers ; crankcase ventilator ; supercharging. COOPER'S MECHANICAL JOINTS, Ltd., and STREETE, C. M. April 15, 1955 [Nov. 4, 1954], No. 31874/54. Class 7 (2). [Also in Group XXVIII] A combined suction air intake silencer and filter for an I.C. engine has an expanding inlet duct 1 having a flared mouthpiece 2 and antiresonance holes 1a leading to an acoustic chamber 6 surrounding an annular filter element 10 located above an oil reservoir 17. Cleaned air is discharged through a second acoustic chamber 12 beneath a casing cover 7 before traversing an outlet duct 15. Flow through the crankcase breather may be silenced by connecting the breather to the chamber 6. By mounting the mouthpiece 2 on a vehicle so that the mouthpiece faces the wind, a pressure boost may be produced. In a modification cleaned air is discharged through a side outlet in the casing cover.
Patent GB-228839-A (GB)
Title: Improvements in or relating to multi-layer inductance coils
IPC: H01F17/02
Filed: 1923-12-20
Abstract: 228,839. Taunton, H. R. Dec. 20, 1923. Inductances.-An inductance coil comprises a number of helically wound layers separated by zig-zag layers so formed that the finished coil has flat sides without projecting loops. The coil may be wound on a cylindrical former A, on either side of which pins are disposed radially in staggered formation. The number of pins in each set should be an odd number not divisable by three. The separating layer comprises a winding over pins 1, 2, 4, 5, 7, 8 and so on back to X, thence, over pins 1, 3. 4, 6, 7, 9 and so on to Y and finally over X, 2, 3, 5, 6, 8 to Z. The separating windings do not cross one another within the area of the helical winding. The former and pins are removed on completion of the coil.
Patent GB-1241410-A (GB)
Title: Improvements relating to fume hoods
IPC: C21C5/40
Filed: 1970-07-01
Abstract: 1,241,410. Converter hoods. COMBUSTION ENG. Inc. 1 July, 1970 [1 July, 1969], No. 31987/70. Heading F4J. An inclined converter hood 20 is rigidly connected at its upper end. to I-beam 44 of support structure 17 whilst over the remainder of its length self-lubricating bearing surfaces 54 on the underside of the hood simply slide against transverse backing I-beams 52 mounted on one or more longitudinal I-beams 40 of the support structure, to allow for differential expansion and contraction between the hood and the support structure. Welded water tube walls forming part of a forced circulation boiler circuit line the inside of the hood. The hood may be rectangular, octagonal or circular in cross-section, in the latter case (Fig. 6, not shown) the transverse backing I-beams being replaced by short transverse feet contacting the bearing surfaces on the underside of the hood.
Patent GB-678177-A (GB)
Title: Improvements in or relating to the manufacture of bearing bushes, distance pieces and the like
IPC: B21D53/10
Filed: 1949-12-14
Abstract: 678,177. Angular bending. SELF-PRIMING PUMP & ENGINEERING CO., Ltd., SIBLEY, W. G., and CARDWELL, C. H. Dec. 11, 1950 [Dec. 14, 1949], No. 32140/49. Class 83 (iv). In making bushes from strip blanks 150A fed by a picker from a magazine to stops on dies 14, a mandrel 7 is lowered by fluid pressure mechanism to bend the blank U- shape and the blank is then clamped between the mandrel and an anvil 10 whilst the recessed dies 14 are moved laterally to complete the bending. The mandrel 7 is supported on a slide 24 movable vertically above the anvil. On the upstroke of the slide the mandrel is withdrawn by cam-slots 28 to strip the bush from the mandrel. The dies and the mandrel are moved by single or double acting fluid pressure cylinders with sequence valves to control their actuation.
Patent GB-1438853-A (GB)
Title: Electric accumulators having non-aquous electrolytes
IPC: H01M4/60
Filed: 1973-07-05
Abstract: 1438853 Secondary cell with non-aqueous electrolyte FRANCE ARMED FORCESMINISTER OF 5 July 1973 [6 July 1972] 32190/73 Heading H1B A rechargeable cell comprises anode and cathode compartments separated by an inorganic fluid-tight ion-conducting wall, the anode compartment containing the metal anode and a salt of this metal dissolved in a non-aqueous solvent and the cathode compartment containing a salt of the metal anode dissolved in a non-aqueous solvent and at least one electron-accepting substance which is soluble in the solvent, even after being reduced. As shown in Fig. 1 the cell comprises an outer cylindrical glass container 1 divided into an anode compartment 4 and cathode compartment 5 by a tube 2 or #-sodium aluminium oxide of composition Na 2 O.11Al 2 O 3 . The compartment 4 has a copper current collector screen 6 and contains, in the discharged state of the cell, a saturated solution of NaClO 4  in propylene carbonate. In the charging process, sodium metal is deposited on the screen 6. The compartment 5 has a graphite current collector rod 8 and is filled with a mixture of carbon felt and sodium iodide impregnated with acetonitrile. When the cell is charged, iodine is liberated and is dissolved in the acetonitrile and constitutes the positive active material. Alternative anode metals are: Li, K, Rb, Ca, Sr, Ba, Mg, La and the lanthamide series metals, a sodium potassium alloy or a sodium amalgam. Alternative metal salts are: NaPF 6 , NaB(C 6 H 5 ) 4 , NaCl or NaSCN. Alternative positive active materials are: quinone, oxidized benzidine or ferricyanide. Alternative organic solvents are: tetrahydrofuran, ethylene carbonate, butyrolactone, dimethylformamide or N,N-dimethylacetamide. The composition of the tube 2 may alternatively be #-aluminium oxide or compositions having these formulae
Patent GB-1012843-A (GB)
Title: Method and apparatus for heat exchange between fine granular material and a gas
IPC: F27B7/20
Filed: 1964-08-07
Abstract: 1,012,843. Preheating cement raw materials. BETEILIGUNGS - UND PATENTVERWALTUNGS K GESELSCHAFT. Aug. 7, 1964 [Aug. 10, 1963; April 9, 1964], No. 32254/64. Heading F4B. Apparatus for preheating cement raw materials passing in countercurrent to hot gases leaving the kiln 6 comprises superposed chambers 2 each formed with a narrow cylindrical section 5, a frusto-conical section 3 and a wider cylindrical section 4, the height of sec- ,tion 4 being from 1-2.5 times the diameter of section 5. The cross-sectional area of the sections 5 increases downwardly, the increase with each chamber being from 3-25% of that of the chamber above. Waste gases are withdrawn by a fan 9 through a cyclone separator 7 having a return pipe 8 to the penultimate chamber 2. The speed of the fan may be adjusted automatically in accordance with the speed of a rotary pocketed drum feeder 10.
Patent GB-1089451-A (GB)
Title: Improvements in and relating to electro-magnetic induction apparatus
Inventor: BERGER BRUNO
IPC: H01F27/12
Filed: 1964-08-07
Abstract: 1,089,451. Transformers. C. A. PARSONS & CO. Ltd. May 27, 1965 [Aug. 7, 1964], No. 32340/64. Heading H1T. [Also in Division F4] A transformer tank 1 is surrounded on one or more sides by a spaced hollow sound attenuating barrier wall 2, coolant oil being circulated through the tank 1 and through flexible connections 4 to the wall 2 either flowing in passages in the wall 2 or passing through the wall and cooling tubes 5 provided on the inside and/or outside of the wall 2; the tubes 5 may also be formed on the outside of the tank 1. The wall 2 may have corrugated sides. Pumps may be provided in the space 6 between the tank and wall for circulating the coolant. Fans may be provided in the space 6 for circulating air outside the tank and wall, and may draw air from outside the wall 2 through acoustic ducts. Acoustic absorbers may also be provided in the space 6. The tank 1 may be provided with a tap changer 3.
Patent GB-1186839-A (GB)
Title: Improvements in or relating to Warp-Knitting Machines
IPC: D04B27/26
Filed: 1968-07-08
Abstract: 1,186,839. Knitting-machines. VYZKUMNY USTAV PLETARSKY. 8 July, 1968 [18 July, 1967], No. 32432/68. Heading D1C. The traverse of each guide bar 2 of a warp knitting machine is determined by the movement imparted to a plate 4 containing rows of holes 7 and connected to the guide bar by a sector 3. The plate 4 is moved first in one direction and then in the other by each in turn of a pair of oscillating arms 10, 11 suitably oscillated by being coupled by links to cam followers deriving their motion from cams on a cam shaft. The arms are provided with slots 19 which contain studs 20 capable of being projected into a hole in one of the rows in the plate 4. Consequently by means of an electro-mechanical programming device a stud in one of the arms is caused to project and engage a hole 7 to move the plate 4 and guide bar 2 first in one direction whereupon it is disengaged and a stud in the other arm is projected to engage a hole 7 to cause movement of plate 4 and bar 2 in the opposite direction. When the guide bar is to remain stationary a locking device 38 engages the plate 4 and holds it immobile. Alternatively the plate 4 may be caused to move vertically under the influence of a two arm lever centrally pivoted having studs for selectively engaging the holes in the plate, Fig. 8, not shown. A slotted plate secured to the plate 4 engaging a cam follower on the end of the guide bar serves to transpose the vertical motion of the plate to horizontal motion of the guide bar.
Patent GB-948019-A (GB)
Title: Pneumatic upholstery, more particularly for motor vehicle seats
IPC: A47C27/18
Filed: 1961-09-11
Abstract: 948,019. Cushions. A. HERDING. Sept. 11, 1961 [Sept. 14, 1960], No. 32456/61. Heading A4M. Pneumatic upholstery, e.g. for which seats, comprises a spring core 6, a spring core covering 7, padding layers 8, 9, e.g. of cotton wadding or foam rubber, an overlay 10 and a pneumatic cushion 2 provided with at least one edge rib 3, 4, 5 and located between the padding layers 8, 9. The main chamber 2 of the pneumatic cushion communicates with the peripheral ribs 3, 4, 5 and is lightly inflated by a small hand pump.
Patent GB-1395467-A (GB)
Title: Corona charging device with semiconductive shield
IPC: G03G15/02
Filed: 1973-07-09
Abstract: 1395467 Electrostatic charging device SPERRY RAND CORP 9 July 1973 [26 Sept 1972] 32523/73 Heading G2H [Also in Division H1] The elongated wire electrode 18 of a corona charging device 10 is partially surrounded by an elongated shield 20 formed from a material having a moderate resistivity i.e. of the order of 10<SP>3</SP> to 10<SP>9</SP> ohm-cm. The resistivity of the shield should be less than that of the dark resistivity of the photo-conductive surface 14 to be charged by the device 10.
Patent GB-429270-A (GB)
Title: Improvements in the manufacture of fungicidal bodies and in their application
Filed: 1933-11-22
Abstract: Fungicidal silver compounds are prepared by treating an arylamide of salicylic acid or its derivatives, or an alkali salt thereof, with a solution of a water-soluble silver salt.  The products, which may be incorporated with an inert diluent such as talc or a dust-preventing agent such as glycerol, are useful for the protection of seeds. According to the examples, sodium salicylanilide is reacted with silver nitrate in aqueous solution; the dried precipitate is ground with talc and used for the treatment of barley seeds or oats.  The samples furnished under Sect. 2 (5) are obtained by interaction of silver nitrate in aqueous solution with the sodium salts of 5-chlorosalicylic-anilide, 3 : 5-dichlorosalicylic-anilide, salicylic-2<1> : 4<1> : 6<1>-trichloroanilide, 3 : 5 - dichlorosalicylic - 2<1> : 4<1> : 6<1> - trichloroanilide, 3 : 5 - dichlorosalicylic - 2<1> : 6<1> - dichloro - 4<1> - nitroanilide and 3 : 5 - dichlorosalicylic - 6<1> - chloro - 2<1> : 4<1> - dinitroanilide.  Salicylic anilides.--Salicylic - 2<1> : 4<1> : 6<1> - trichloroanilide is prepared by heating salicylic acid and 2 : 4 : 6 - trichloroaniline with phosphorus trichloride in dry toluene.  3 : 5-Dichlorosalicylic - 2<1> : 4<1> : 6<1> - trichloroanilide, 3 : 5 - dichlorosalicylic - 2<1> : 6<1> - dichloro - 4<1>-nitroanilide and 3 : 5 - dichlorosalicylic - 6<1> - chloro-2<1> : 4<1>-dinitroanilide are similarly prepared from their components.ALSO:Seeds are protected against mildew and other fungoid growths by treatment with the silver compounds of arylamides of salicylic acid and its derivatives.  The compounds may be used in the form of aqueous dispersions or as powders.  In the latter case, they may be mixed with an inert diluent such as talc or a dust-preventing agent such as glycerol.  An example is given of the treatment of barley seeds or oats with a powdered mixture of silver salicylanilide and talc.  The silver compounds of the following arylamides, furnished as samples under Sect. 2 (5), may also be used:-5 - chlorosalicylic - anilide, 3 : 5-dichlorosalicylic - anilide, salicylic - 21 : 41 : 61-trichloroanilide, 3 : 5 - dichlorosalicylic - 21 : 41 : 61 - trichloroanilide, 3 : 5 - dichloroasalicylic-21 : 61 - dichloro - 41 - nitroanilide and 3 : 5-dichlorosalicylic - 61 - chloro - 21 : 41-dinitroanilide.
Patent GB-1147526-A (GB)
Title: Testing television receivers
Inventor: DUNN JAMES ARNOLD
IPC: G01R1/20
Filed: 1966-07-20
Abstract: 1,147,526. Testing television receivers. J. A. DUNN. 20 July, 1966 [25 March, 1966], No. 32625/66. Heading H4L. Testing equipment is connected into the line output stage including valve 60, and the E.H.T. rectifier stage including valve 70, by interposing adapters providing the necessary connections to meters 32, 34, and rotary switch 52 between the valves 60, 70 and their holders. Switches 36, 38, 40 and 42, 44, 46 in the equipment allow the selective connection or shortcircuiting of meters 32, 34 and switch 50 connects a test point 54. Various voltage measurements may be made and the readings for the two interdependent circuits indicated by the two meters simultaneously to facilitate adjustment.
Patent GB-430880-A (GB)
Title: Improvements in blankets or plaids
IPC: D03D11/00
Filed: 1934-11-13
Abstract: 430,880. Shawls. WALLIN, E. H., 33, Tingsgatan, Arvika, Sweden. Nov. 13, 1934, No. 32703. [Class 141] [See also Group IX] A fabric, which is napped on both sides and used as a blanket or plaid, consists of two or more separated layers 5, 6, 9, interwoven at the four edges 1 by weft threads 4, and also at other points 8, if desired. The layer 9 may be a loose fabric of coarse looselytwisted yarns to facilitate the napping, the weaving process described in Specification 398,577, [Group IX], may be used.
Patent GB-777267-A (GB)
Title: Improvements in or relating to snap action electric switches
Inventor: SHARP LEONARD WILLIAM DESCARRI
IPC: H01C10/36
Filed: 1954-11-12
Abstract: 777,267. Snap-action switches. PLESSEY CO., Ltd. Nov. 11, 1955 [Nov. 12, 1954]. No. 32783/54. Class 38(5) A toggle switch comprises a lever 2 having a part 3 pivoting in a hole in the casing 4 and connected by a torsion spring 11 to an insulating plate 5. The latter has a recess 8 receiving a roller 9 on the spring 11 and loosely carries two contacts 6 adapted to be brought into bridging engagement with fixed contacts 13, 14 on sliding movement of plate 5. The fixed contacts have corrugated portions forced into slots 15 in the casing so as to mount them securely, and terminal portions 18, parts 19 of which are upset to lock them in position. The plate 5 may move rectilinearly, as shown, or along an arc. The switch can be coupled to an adjustable resistance.
Patent GB-850640-A (GB)
Title: Apparatus for reproducing and copying a record prepared on translucent material
IPC: G03B21/11
Filed: 1958-10-14
Abstract: 850,640. Photographic apparatus. GENERAL ANILINE & FILM CORPORATION. Oct. 14, 1958 [Feb. 14, 1958], No. 32823/58. Classes 97(1), 98(1) and 98(2) [Also in Group VIII] Apparatus for reproducing and copying a record prepared on translucent material such as microfilm, comprises a cabinet of light-tight construction, a translucent viewing screen in one wall of said cabinet, a projection means accommodating said translucent material attached to said cabinet, a fixed mirror inside said cabinet so arranged as to reflect the image forming rays upon the inner face of said screen, a platen within said cabinet over which light-sensitive material can be passed, a second mirror movably supported within said cabinet and adapted to be moved into two distinct positions, in one of which positions said second mirror intercepts the rays reflected from said first mirror and directs them upon said platen for exposure of said material and, in the other position, permits free passage of said rays onto said viewing screen, and means for obstructing the light entering said cabinet through said screen when said second mirror is in the position to intercept said rays. As shown, translucent material 22, which may be in card form, is inserted into the projector indicated generally at 18, and the image forming rays reflected by fixed mirror 17 onto translucent viewing screen 9. If a copy of the image is required, mirror 27 pivotable on shaft 28 is lowered by action of motor 35 into a position reflecting the image onto platen 36 which supports the light sensitive material, and a curtain 11 is lowered across screen 9 by the action of motor 14. Light sensitive material is fed to the platen from a roll 37, by the action of power driven rollers 39 and 42, and the material is cut by a guillotine arrangement (see Group VIII), located between these rollers 39 and 42. After exposure, which is governed by any suitable photographic timing apparatus, the sheet of material is fed by endless belts 40 into channel 57 leading to the developing portion of the apparatus. As the photographic paper passes from rollers 68, 681 to rollers 70, 701, the developer is applied by a roller 67 half submerged in the developing solution, and rotating in a direction opposite to the movement of the paper. The developed paper is then delivered to a tray 74. The various motive parts are actuated by small electric motors, interconnected by conventional relay circuits.