baber/WOPTO huggingface dataset:
Patent GB-535493-A (GB)
Title: Improved method of separating solid substances from suspensions by flotation
IPC: B03D1/02
Filed: 1940-03-15
Abstract: 535,493. Recovery of fibres from waste water of paper manufacture etc.; froth flotation. JUELL, F. March 15, 1940, No. 4893. [Class 96] [Also in Group II] In flotation recovery of fibres from the back water of paper, cellulose, or wood pulp manufacture &c. gas, e.g. air from an injector 5 on the suction side of a centrifugal pump 1 to which it is fed from the pressure side through a pipe 4, is dissolved under pressure and liberated at a pressure below atmospheric, induced by the kinetic energy of the liquid escaping through a nozzle 6 with an adjustable flange 7, the subatmospheric pressure accelerating the separation of the gas. The back water overflows at 9 and the fibres are skimmed off, the clarified water flowing away through the bottom of a tank 2.
Patent GB-285491-A (GB)
Title: Improvements in the process of rolling pulleys and the like, and apparatus therefor
IPC: B21H1/04
Filed: 1928-02-16
Abstract: 285,491. Henschel & Sohn Ges. Abteilung Henrichsh³tte. Feb. 19, 1927, [Convention date]. Addition to 253,526, [Class 80 (i), Gearing, Belt &c.]. Rolling annular bodies.-Pulley rings are rolled in a roll pass formed by a stationary roll a and a movable roll b. The part i of the roll a forms the pulley groove and the flanges d, e serve to guide the flanges of the movable roll during pass adjustment while forming the flanges m on the work. The annular blank is formed initially with a shallow groove on its circumference.
Patent GB-270832-A (GB)
Title: Improvements in and relating to garments, and bed and like coverings
IPC: A47G5/00
Filed: 1926-02-22
Abstract: 270,832. Yates, A. L. Feb. 22, 1926. Undergarments; dresses. - Coverings for the human body, particularly applicable in connection with sun treatment, comprises underclothing or coverings and outer garments or coverings made of material permeable by light with spacing means, such as tucks or cords, so that the inner and outer garments allow the passage of light and air to the body. An inner garment for female wear comprises wide mesh material a, Fig. 1, a piece b of opaque material between the leg parts, and one or more strips c or ridges of opaque material from the arm pits to the knees, the parts d being formed by two or more layers of the open mesh material, by material of a closer mesh, or by opaque material. The intermediate garment or petticoat comprises open mesh material provided with tucks or woven or other cords e, Fig. 3. The outer garment or dress is formed of net material. The invention may be applied to garments for male wear. In the case of bed coverings, the inner covering f, Fig. 6, is formed of wide mesh material, intermediate covering g of closer mesh material and provided with tucks i or cords h on one or both sides, and the outer covering or counterpane of plain open mesh material.
Patent GB-463473-A (GB)
Title: Improvements in electric motor starting switches or circuit breakers
IPC: H01H71/44
Filed: 1935-08-26
Abstract: 463,473. Dashpots. WEST & CO., Ltd., A., and PAVITT, F. J. Aug. 26, 1935, No. 5132/37. Divided out of 461,900. [Class 108 (iii)] In a dashpot adapted to be actuated by an electric winding, both the bobbin of the winding and the dashpot cylinder are of moulded insulating material, such as the synthetic resin known under the Registered Trade Mark " Bakelite," and are detachably secured to one another so as to form one unit. The description, which is limited as regards the application of the invention, to switches for the control of electric motors adapted to respond upon the occurrence of overload subject to a time delay, is substantially identical with that of Specification 461,900, but the claims are different. The Figure shows the overload armature 31 carrying a cup-plunger 52 fitting with clearance in a - metal lining 51 in the cylinder, the plunger having a perforation 52<a> and carrying a partspherical dished washer 53. On the occurrence of an ordinary overload the armature 31, together with the plunger 52 is lifted gently so that the washer does not tilt, the size of the aperture 52<a> and the clearance between the aperture and the washer largely determining the speed of ascent. When a heavy overload occurs, the initial rapid rise of the plunger causes the washer to tilt automatically and close the aperture 52<a>, the peripheral clearance around the plunger then determining the rate of ascent. On the occurrence of a severe overload, the plunger rises very rapidly although the washer tilts and closes the aperture, and the starter is tripped practically instantaneously.
Patent GB-134238-A (GB)
Title: Improvements in or relating to Colour Photography.
Inventor: FRIESE-GREENE WILLIAM
IPC: G03C7/00
Filed: 1918-09-25
Abstract: 134,238. Greene, W. Friese-, and Garrett, F. Sept. 25, 1918. Colour photography; colour-sensitive and like plates and films.-A colour sensitizer for sensitized surfaces which are superposed and simultaneously exposed in a camera, without the use of colour screens, to produce separate colour records, comprises pinacyanol, pinaverdol, pinachrome, flavascine, and ammonia mixed with water. One only of the sensitized surfaces may be treated with this sensitizer, so as to be panchromatic, and the other sensitive surface may be non-panchromatic or rendered panchromatic in known manner. Alternatively, both sensitive surfaces may be rendered panchromatic by the above-described sensitizer. The proportions are preferably: pinacyanol 2 grains, pinaverdol 6 grains, pinachrome 2 grains, flavascine 4 grains, ammonia (.880) 4 oz., water 65 pints. The first four ingredients are dissolved in 10 oz. of boiling alcohol and stirred until they are dissolved. The water is then added at a temperature of about 70‹ F., and then the ammonia. The sensitized surfaces may be in the form of plates, films, or kinematograph films, and the positives prepared from them may be, one or both, on transparent bases. The images of the positives are appropriately toned and superposed, or, in the case of kinematograph films, the films may be stained.
Patent GB-471057-A (GB)
Title: Improvements in or relating to the carroting of fur and the like
IPC: D01C3/00
Filed: 1936-02-20
Abstract: Fur or the separated hair is carroted for felting by means of an aqueous solution of an acid hydrolyzing agent, e.g. hydrochloric and sulphuric acid, an oxidizing agent and a soluble neutral salt of a strong acid and an alkali, alkaline earth metal, or ammonium, the salt being present in amount equal to or greater than the amount of the acid so that on drying the treated fur the salt prevents damage to the fur which might be caused by increasing concentration of the acid.  Sodium sulphate is a suitable neutral salt for use in the process and suitable oxidizing agents are hydrogen peroxide, potassium persulphate, chlorate, or perchlorate, and ammonium persulphate.  Reference has been directed by the Comptroller to Specification 345,404. p
Patent GB-162132-A (GB)
Title: Improvements in or relating to file cutting machines
IPC: B23D73/00
Filed: 1920-02-21
Abstract: 162,132. Oxley, G. H., Hirst, A., and Jackson, R. E. Feb. 21. 1020. File-cutting.-In a file-cutting machine having a cutter-head lifted by a cam and a feed-screw operated by ratchet-gear, the pawl of the ratchet gear is carried by one end of a lever, the other end of which engages an operating-cam. The half-nut which engages the feed-screw is operated by an eccentric or an eccentrically-slotted plate, and the hammer-head and presser-bar can be raised by means of a lever. In the form shown, the cutter-head 4 is inclined at 10‹ to the vertical, and the bed 2 at 5‹ to the horizontal. The cuttercarrier 9 is lifted by a cam 8 on a spindle driven through bevel-gearing by a shaft 6. This carries a cam 14, which operates a ratchet-wheel 21 by means of a lever 15, carrying a spring-pressed pawl, and pivoted at 16 in an oil bath 17. The spindle of the ratchet-wheel 21 and the feedscrew 5 carry changeable toothed wheels 23, 24, which are geared together by a changeable toothed wheel 27 adjustable in a slot in a radial arm 25. The latter is rotatable about the feedscrew and can be clamped in position. The halfnut 30, which engages the feed-screw 5, slides in guides in the table 3 and is operated by a slot in a plate 34 turned by a handle 32. A lever 39, which may be operated by a treadle 41, is formed with a boss 43 engaging a projection on the cuttercarrier 9, and is connected to the presser-bar 38 by a slotted link 45. Depression of the treadle 41 first disengages the cutter-carrier from the cam 8 and then lifts the presser-bar 38.
Patent GB-564622-A (GB)
Title: Improvements in or relating to apparatus for registering sheets being fed to printing presses or other machines
IPC: B65H9/10
Filed: 1943-04-01
Abstract: 564,622. Feeding sheets. BACKHOUSE, H. T. April 1, 1943, No. 5258. [Class 100 (i)] In apparatus for feeding sheets to printing and like machines, the sheets are registered laterally by a reciprocating draw-bar 16 with which co-operates a pressure roller 24 or a gripper member, to draw the edges of the sheets against a lay 12 formed integral with a base-plate 10, the bar 16 being slidable in a recess in the plate 10. The registering devices are built as a self-contained structure carried by a frame 11 and adjustable as a whole upon a rod 13 laterally of the sheets, and, if desired, also in the direction of the length of the sheet. The bar 16 is formed of thin flexible sheet steel, and its upper surface is flush with the top of the plate 10. The bar is attached to a lever 17 oscillated by an arm 21 on a shaft 22 operated by a rod 23 from the printing-machine. The sheets are also controlled by a smoothing device 36 which is carried by a vertical slide 37, Fig. 2, and the pressure roller 24 and the smoother 36 are operated by a common lever 29 operated by a presser-foot 33 on a rock-shaft 34 operated in unison with the machine. Normally, both the smoother and the roller 24 are raised as the sheets reach the front stops, and the smoother then falls under spring action to an extent controlled by a screw 45 and lever 44 which engages a slot in the slide 37, and thus the smoother can be set for sheets of different thickness. Finally, the roller 24 engages the sheet against the draw-bar 16 acting through a slot 40 in the smoother, and the bar 16 then moves outwardly to register the edge of the sheet against the lay 12, the sheet moving from position represented by line 50 to a position represented by line 51. To allow for wear, the bar 16 can be fitted with a detachable plate of phosphor-bronze at the place where the roller 24 engages the bar.
Patent GB-491074-A (GB)
Title: An improved method of setting precious stones and other jewelry
IPC: A44C17/04
Filed: 1937-02-22
Abstract: 491,074. Jewellery. RIGOLLET, L. Feb. 22, 1937, No. 5273. [Class 43] Means for setting precious stones or jewels comprises a cup having a rigid tongue on one side thereof and a resilient tongue in the other side, the rigid tongue engaging in a recess in the stone, and the resilient tongue springing into another recess in the stone. As shown, the means comprises a metal cup 2 provided at one side of the upper edge with a tongue or projection 3 adapted to engage a recess or notch 4 in the stone 1 ; at that part of its periphery opposite the tongue 3, a gap is provided in the cup, the gap being filled by a thin metal strip 51, the lower part 5 of which, up to the holes 7, is soldered to the edges of the gap ; the upper part of the strip, which forms a resilient tongue 6, is provided with a nose 8 adapted to spring into a recess or notch 9 in the stone. The cup may be soldered or welded to the mount for the stone, or may be provided at its base with a neck, flange, collar or claws adapted to pass through a hole in the mount and be secured by riveting or soldering. Specification 454,821 is referred to.
Patent GB-195832-A (GB)
Title: Improvements relating to explosion-proof electric motors and the like
IPC: H02K9/24
Filed: 1922-02-23
Abstract: 195,832. Major, C. W., and Metropolitan-Vickers Electrical Co., Ltd. Feb. 23, 1922. Casings; commutators and collecting-rings.- In an explosion-proof electric motor or the like of the type in which the collecting-rings 2 or other parts at which sparking occurs are enclosed in a casing 1 through the wall 4 of which the shaft passes, flame propagation to another part of the motor or to the exterior is prevented by the employment of a labyrinth packing with intermeshing parts for the motor shaft. The packing may comprise a collar 5 on the shaft with conical or cylindrical flanges 6, intermeshing with similar flanges 8 on the casing wall, or on a part 7 secured to the wall. The clearances are greater than usual in labyrinth packings.
Patent GB-1479573-A (GB)
Title: 2-chloromethylphenylcarbamic acid fluoride
IPC: C07C239/00
Filed: 1976-02-11
Abstract: 1479573 2-Chloromethylphenylcarbamic acid fluoride BAYER AG 11 Feb 1976 [12 Feb 1975] 05392/76 Heading C2C The invention comprises 2 chloromethylphenylcarbamic acid fluoride and its preparation by reacting 2-chloromethylphenylisocyanate with anhydrous hydrofluoric acid. The invention also comprises the preparation of 2- aminodiphenylmethane - 2<SP>1 </SP>- carboxylic acid lactam, characterized in that 2-chloro-methylphenyl carbamic acid fluoride, optionally dissolved in benzene, is reacted with anhydrous hydrofluoric acid under pressure. The 2-chloromethylphenylcarbamic acid fluoride may be prepared in situ as above.
Patent GB-549011-A (GB)
Title: A process for the manufacture from brewers' yeast of a vitamin-containing material
IPC: A23L1/30
Filed: 1941-04-26
Abstract: 549,011. Yeast food preparations. CARTER, T. S., KULKA, D., and GASKING, E. H. April 26, 1941. No. 5420. [Class 49] In the production of a vitamin-containing material from brewer's yeast the yeast is washed with a dilute solution of alkali hydroxide, carbonate or bicarbonate at a temperature not exceeding 25‹C. for a period not longer than two hours in order to remove hop resins, the washed debittered yeast is plasmolysed with common salt or sugar, the plasmolysed product is maintained at a temperature of the order of 70‹C. for 10-60 minutes to complete the plasmolysis, to destroy proteolytic enzymes and to pasteurise the material without destroying the vitamins to any large extent, and the product so obtained is sterilized by the addition of a volatile liquid bactericide, such as ether, acetone, chloroform and homologrus halogen aliphatic compounds, the bactericide being finally removed under reduced pressure. Flour, oatmeal or other cereal or a gelatinizing agent may be added to the plasmolysed yeast after the heat treatment and before the sterilization. Other vitamins than those contained in the yeast may be added to the plasmolysed yeast to produce a balanced vitamin food, and a flavouring substance may be incorporated at any stage of the manufacture. The plasmolysis is carried out' with sugar when a sweet product or confectionery is desired. Soya flour may be included in the product as in the making of a sauce or a cheese substitute paste.
Patent GB-1244102-A (GB)
Title: Method for the isomerization of monoepoxides
IPC: C07D303/04
Filed: 1969-01-31
Abstract: 1,244,102. Isomerization of cycloaliphatic epoxides. ATLANTIC RICHFIELD CO. 31 Jan., 1969 [22 March, 1968], No. 5494/69. Heading C2C. Cycloaliphatic allylic alcohols having 7 to 10 C atoms in the ring are obtained by isomerization of cycloaliphatic epoxides having a hydrogen atom in the # -position to the epoxide ring, involving contacting the epoxide with lithium orthophosphate or potassium tertiary butoxide, at a temperature in the range from 80‹ to 250‹ C. Examples are given for the production of 2,5-cyclo-octadiene-l-ol and 2- cyclo-octen-1-ol. 1,2-Epoxy-5-cyclo-octene may be obtained by reacting 1,5-cyclo-octadiene with t-butyl hydroperoxide in the presence of Mo(CO) 6 . Epoxy-cyclo-octane may be obtained by substituting cyclo-octene for 1,5-cyclo-octadiene. Cyclo-octanol may be obtained by hydrogenating 2 - cyclo - octen - 1 - ol or 2,5 - cycleoctadiene-1-ol with H 2  in presence of platinum oxide.
Patent GB-433637-A (GB)
Title: Improvements in tunnel ovens
IPC: F27B9/08
Filed: 1934-02-19
Abstract: 433,637. Tunnel pottery &c. ovens. MOORE, B. J., Parkfield House, Princes Road, Hartshill, Stoke-on-Trent. Feb. 19, 1934, No. 5507. [Class 51 (ii)] In a tunnel oven primarily for pottery, the temperature of the main heating zone 10 which is at a substantial distance from the entrance to the tunnel, is maintained mainly by combustion of fuel (e.g. in muffles 13), while in the secondary or entry heating zone, the heat is maintained mainly by electric resistances 18 adapted to heat this zone throughout its entire crosssection and situated at a relatively low level on the walls of the tunnel. In a modification, there may be three parallel tunnels, the central one heated entirely by electric resistances and forming the entry zone and the two outer heated partly by combustion and partly by electric resistances. Specification 435,452 is referred to.
Patent GB-967052-A (GB)
Title: Zinc extraction
IPC: C22B19/04
Filed: 1963-02-11
Abstract: <PICT:0967052/C1/1> Zinc values are extracted from blast furnace dust by placing the dust in a series of vats and passing ammoniacal liquid through the vats in series, the extractant, i.e. the ammoniacal liquid, being freed of dust before passing into the next vat, or in the case of the last vat in the series being treated to remove zinc before being recycled to the first vat in the series, while the dust separated from the extractant coming from each vat is treated to recover ammonia which is fed to the first vat. The figure shows a suitable apparatus.  Vats 1 to 6 having three compartments equipped with stirrers and containing ammoniacal liquid, e.g. an aqueous solution of ammonia and ammonium bicarbonate are fed with blast furnace dust from lines 7 to 12.  The slurry formed passes consecutively through the compartments and into cyclones 16 from which the liquid passes in the case of vats 1 to 5 via line 18 into the next vat and from vat 6 it passes into chamber 19 where it is boiled to precipitate the zinc values which are removed via line 20 whilst the liquid is returned to vat 1 via line 21.  The extracted dust passes from cyclones 16 into chamber 22 where it is treated with steam to recover ammonia.  The ammonia recovered is returned via line 23 to vat 1.
Patent GB-879700-A (GB)
Title: Improvements relating to rotary lifts
IPC: B65G33/00
Filed: 1960-02-17
Abstract: 879,700. Screw elevators. SONNEBORN CHEMICAL & REFINING CORPORATION. Feb. 17, 1960 [March 3, 1959], No. 5608/60. Class 78 (1). A screw elevator 3 has a lower tapered part 9 which works in a correspondingly shaped part 6 of the casing 4. The shaft 1 of the screw is supported solely by the driving means 2 and where it passes through the closed top of the casing 4, a sealed sliding joint 14 is provided. This joint may consist of a carbon ring or sleeve secured within a steel ring or sleeve. Material is fed to the elevator through a pipe 7 and is discharged through a pipe 5. The casing 4 may be surrounded by a jacket 16 which is supplied with hot combustion gases.
Patent GB-101448-A (GB)
Title: A New or Improved Yard Stick for the use of Colliery or Mining Officials.
Inventor: GULLIFORD ALBERT GEORGE
IPC: E21F17/00
Filed: 1916-04-19
Abstract: 101,448. Gulliford, A. G. April 19, 1916. Thermometers.-A testing-stick for the use of colliery officials is in the form of a walking-stick which is graduated to serve as a yardstick. A thermometer T is enclosed in the stick and a spirit level P is let into the side. A safety-lamp holder L is provided, which can be turned into recess in the handle when not in use. The thermometer is carried by a spring S attached to a metal socket-piece K fixed in the hardle, the handle being jointed to the stick at the part J. A metal tube M screwed at the upper part to engage an external screw-thread in the socket K, forms a sheath for the thermometer.
Patent GB-800302-A (GB)
Title: Improvements in or relating to anchoring means particularly for use in the pouring of successive lifts of concrete
IPC: E04G21/14
Filed: 1954-11-20
Abstract: 800302. Ground anchors. WILLIAMS, C. I. Nov 20, 1954, No. 5727/57. Divided out of 800,301 [Group X]. Class 45. [Also in Group XXV]. Anchoring means insertable into concrete prior to setting thereof, comprises a rod-like member formed with longitudinally extending undulating deformations having lateral displacements with respect to the axis of the rod-like member which are greater than the thickness on diameter of the rod forming the anchoring member, but less thar twice this thickness or diameter one end of the anchoring being adapted for detachably con necting supporting and/or coupling members thereto. In Fig. 1 the anchoring member is in the form of a hairpin of which each leg 60 is provided with longitudinally extending undulations. In Fig. 3 the anchoring member is of pigtail form screw-threaded at 62 to which an eye 63 may be fixed. An eye may be integgrally forged on the pigtail anchor.
Patent GB-239552-A (GB)
Title: Carburettor with additional air supply
IPC: F02M1/00
Filed: 1924-03-06
Abstract: 239,552. Angelini, L. March 6, 1924. Spray carburettors.- The air is supplied, up to a certain engine speed, through a calibrated opening immediately adjacent the nozzle, whilst at higher speeds it is supplied through a larger calibrated opening in communication with the atmosphere through an automatic valve. A carburettor having two main nozzles 7, 8 discharging into chambers 3, 2 with independent throttle valves 6, 5 is described, the invention being applied only to the nozzle 8. This is surrounded by a calibrated air passage H above which is a passage X of larger area which is in communication with the atmosphere through an annular chamber 21, duct 16 and spring-loaded valve 15. Above a predetermined engine speed it is stated that the air control is transferred from passage H to passage X, the passage H then serving merely as an inlet. A valve 17 may be provided for admitting air only for braking and the chambers 2, 3 may be jacketed at 12. The chamber 3 may be brought into action when still higher engine speeds are required. In a modification, the carburettor is horizontal, the nozzles 7, 8 project transversely into their respective air passages which are controlled by a common rotatable plug throttle, the suction on the valve 15 is maintained constant by a passage in addition to the duct 16; a by-pass or pilot nozzle of known construction is provided. Reference has been directed by the Comptroller to Specifications 17886/14, 111,525, 133,289, 135,821, and 190,432.