baber/WOPTO huggingface dataset:
Patent GB-659530-A (GB)
Title: Work guide for rolling mills
IPC: B21B41/06
Filed: 1949-06-13
Abstract: 659,530. Rolling. DE WENDEL & CIE, LES PETIT-FILS DE F. June 13, 1949, No. 15697. Convention date, June 15, 1948. [Class 83 (iv)] A work-guide for a rolling-mill comprises a bent Y-shaped channel, the twin branches 11, 12 of which are directed towards the tail side of the mill, and a rocking switch blade 22 arranged at the junction of both said branches and closing the communication of either one of them with the third branch 8, the heel of said blade being provided with heel bosses 30 forming cams intended for being engaged by the loop 42 which forms itself in every rolled bar near the rolls of the exit stage on the head side of the mill, when said bar approaches the entry rolls of the following stage which delivers less metal, said loop thus automatically controlling the shifting of the blade. The blade 22 is pivoted at 23 and braked, to prevent uncontrolled swinging, by a washer, spring- mounted on a bolt 32 carried by the blade and moving in a part 33, Fig. 7 (not shown). The exit branches 11, 12, open into exit spouts 13, 14, respectively, which direct bars issuing therefrom to sets of roll passes b<SP>1</SP>, b2, respectively, of the second roll stage. In operation, and assuming a bar from roll stage A, Fig. 1, is engaged in branches 8, 12, lying underneath the heel part 30 which partially covers branch 12, and is entering roll pass b5 in stage B, then since rolls A and B rotate at the same speed a loop 42 (Fig. 8) is formed and disengages itself from channel 8 as it approaches the guide. A loop 41a is formed as rolling proceeds and eventually the loop 42 strikes the heel 30 and causes the blade 22 to rock, bringing its point to the recess 29, thus sealing the branch 12 and opening the branch 11 for the reception of the next rolled bar which will thus be directed into the roll pass b<SP>1</SP>. The sides of the channel are oblique, Fig. 9, to maintain the bar therein until the loop formation causes the bar to leave the channel. Guides may be provided at each stage of a train of rolls.
Patent GB-1430326-A (GB)
Title: Cabinet with at least one withdrawable part
IPC: A47B88/04
Filed: 1974-04-09
Abstract: 1430326 Cabinets KBKA LUNDBERG 9 April 1974 [26 April 1973] 15759/74 Heading A4B A cabinet for drawings, maps or the like comprises a plurality of withdrawable frames 2 slidably guided in upper and lower guides 4, 5 through intermediate guide rods 3, 6, each frame 2 being supported on withdrawal by a rope 7 anchored at one end 8 to the cabinet at the rear end of the upper guide 4, the rope 7 passing over upper and lower rollers 2a, 2b carried by the rear edge of the frame 2 and over further rollers 6b, 6c carried by the lower guide rod 6 to be finally anchored at its other end 9 in the region of the middle of the lower guide 5. The lower rod 6 has rollers 6a, 6d respectively engaged in the lower guide 5 and in a part 2" of the frame 2 and is supported on a roller 5a located in the front end of the lower guide 5. The upper rod 3 has rollers 3a, 3b respectively engaged in a part 2' of the frame 2 and in the upper guide 4. Stops are provided to prevent complete withdrawal of each frame. Each frame 2 preferably carries a further frame which pivots down to a horizontal position when the frame 2 is withdrawn and serves to carry the stored articles.
Patent GB-858063-A (GB)
Title: Apparatus for winding strip-like or thread-like material under uniform tensile stress
IPC: B65H54/74
Filed: 1957-05-17
Abstract: 858,063. Winding yarns. AUMANN, P. May 17, 1957, No. 15763/57. Class 120 (2). [Also in Group XVI] Means for winding at uniform tension yarn supplied at constant speed comprises an eddycurrent coupling 6, 10 with adjustable gearing 3, 4 between it and the reel 2. In this way, the arrangement can be used for winding rolls  of differing average diameters. The part 10 may comprise a ring of magnets 11 arranged so that positive and negative poles alternate: the other part consists of a disc of copper or aluminium with an iron ring 7. The torque may be varied by adjusting the air-gap by a rack 13 and worm wheel 14 or when the magnets are electromagnets by changing the exciting current.
Patent GB-674965-A (GB)
Title: Fluidized-solids systems for selectively recovering tin from ores as a volatized tin-compound
IPC: C22B25/00
Filed: 1949-06-14
Abstract: <PICT:0674965/III/1> A process of volatilizing tin-values in ores comprises upflowing a stream of hot scrubbing gases which yield at least 1 per cent by volume of unoxidized gaseous sulphur at solid-fluidizing velocity through a bed of finely divided ore particles maintained at a temperature which lies below the temperature at which solid particles in the bed tend to stick and thereby hamper fluidization.  The bed temperature preferably lies within the range from 60 DEG C above and below the melting point of stannous sulphide (832 DEG C).  In one form, sulphur-containing ore particles are fed into the upper bed 64 of a two-part reactor 11 via a conduit 42, and after treatment in the bed overflow down a conduit 35 into a lower ore-roasting bed 22, being removed therefrom by a conduit 23.  Treatment gas (e.g. 83 per cent N. 7 per cent SO2, 10 per cent O2) composed of a mixture of air from pipe 25 and recycle gas is passed through the lower bed at a fluidizing velocity where the free oxygen combines with the sulphidic constituents and maintains the temperature of the bed at about 1100 DEG C.  The hot gases rising from the lower bed (e.g. 83 per cent N, 3 per cent O, 14 per cent So2) then pass up through the fluidized upper bed 64, raising the temperature of the ore to 900 DEG C at which temperature being stannous sulphide in the ore is volatilized and the sulphur, formed by the decomposition of the pyrite in the ore is vaporized forming about 1 per cent of the gases in the upper bed and reacts with tin oxides in the ore to form more stannous sulphide which is also volatilized.  Air passed in at 36, via a conduit 43, converts the stannous sulphide into stannic oxide and sulphur dioxide the resultant fume passing from the reactor, through a conduit 37, into a cyclone 65 where entrained ore particles are removed and into a bag filter 66 where the stannic oxide is removed.  Part of the remaining gases is recycled to the retort via a pump 61.  The reactor may have more than two beds, the upflowing gases from the lower bed passing through the remainder.  When starting, the reactor may be first preheated by burning carbonaceous fuel and air supplied through the conduit 32 in the lower bed.  The desulphurized ore removed from the lower bed, which is principally in the form of Fe3 O4, may be treated, e.g. by magnetic separation to recover the iron.
Patent GB-953626-A (GB)
Title: Enteric-coated tablets of dextran sulphate ester and method of preparation thereof
IPC: A61K9/28
Filed: 1962-04-25
Abstract: The invention comprises a tablet of a water-soluble salt of dextran sulphate coated uniformly with an enteric coating material which is insoluble in a simulated gastric fluid having a pH below 3.0 but dissolves or disintegrates in a simulated intestinal fluid having a pH ranging between 5.0 and 8.0.  The coating may be 0.05 to 1.0 mm. thick and is preferably followed by a further coating of acetoglyceride (an acetylated aliphatic glyceride wherein the carbon atoms of the fatty acid are 12 to 20) and a wax such as beeswax, carnauba wax, vegetable wax or synthetic wax.  Typical coating materials are sodium, potassium and ammonium salts of alginic acid; sodium potassium and ammonium salts of cellulose acetate phthalate; sodium, potassium and ammonium salts of cellulose acetate maleate; sodium, potassium and ammonium salts of polyvinyl alcohol phthalate; and sodium, potassium and ammonium salts of polyvinyl alcohol maleate; cellulose acetate phthalate, cellulose acetate maleate, polyvinyl alcohol phthalate, and polyvinyl alcohol maleate.  The dextran sulphate e.g. sodium or potassium salt, is mixed with a diluent such as starch and compressed or moulded to form a tablet. The tablet is coated with an adhesive e.g. aqueous gelatin and the enteric coating then applied.  The operation may be repeated to give the desired coating.  To assist dispersion of the dextran sulphate in the intestine and to promote absorption from the intestine the dextran sulphate salt may be mixed with isopropyl myristate and the stearic acid ester of a polyoxyethylene prior to granulation and compression into tablets.  The tablets of the invention are effective in the treatment of hyperlipemia.
Patent GB-628341-A (GB)
Title: Improvements in or relating to binocular magnifiers
IPC: G02C7/08
Filed: 1947-06-16
Abstract: 628,341. Magnifying lenses. ABBEY, A. (American Optical Co.). June 16, 1947, No. 15839. [Class 97 (i)] A magnifying attachment for spectacles comprises two bars pivoted at one end to the spectacle frame each carrying a magnifying lens at the other, the bars converging towards the lenses and being spaced apart by an adjustment member in the form of a clamp resiliently holding the bars but releasable manually to slide longitudinally of the bars to vary the distance between the lenses. As shown, the bar members 11 are pivoted by pins 15 to a spectacle frame and carry magnifying lenses 8. The members are joined by a bar 13 and by an adjustment member 22 normally clamped to the members 11 under spring action. As shown exploded in Fig. 3, the member 22 comprises a tube 24 having slots 25 and in which is placed a spring 26, the ends being closed by slide blocks 27 having slots 28. In operationthe slide blocks 27 are pressed together manually until the slots 25 and 28 coincide when the bars 11 are engaged in the respective slots when sliding is possible. On releasing the manual pressure the bars are held clamped against the ends 29 of the slots 25. A modification, Fig. 6, comprises a slotted spring 41 attached at 60 to a plate 32 and holding the members 11 against the ends 49 of slots therein. By bending the ends 47 towards each other the member 38 may be moved longitudinally of the members 11.
Patent GB-580391-A (GB)
Title: Improvements in and relating to the lubrication of rotatable valves for internal combustion engines
IPC: F01M9/10
Filed: 1944-08-21
Abstract: 580,391. Lubricating rotary valves; cooling cylinders. BRIGGS MANUFACTURING CO., and BALL, A. P. Aug. 21, 1944, No. 15920. [Classes 7 (ii) and 7 (vi)] In an engine with a rotary or oscillating valve, in the cylinder head, formed with a combustion chamber, lubricant is supplied to the valve at a point between the intake and exhaust conduits and immediately opposite the igniter. As shown a sodium-cooled frusto-conical valve 25 having a single port 29 which registers successively with an igniter 22 and inlet and exhaust conduits is lubricated from a conduit 36 through passages 36a, 36b above and below the port 29. Further lubricant is supplied to the top of the valve through a conduit 37. The valve 25 is adjusted relative to its seat by a sleeve 43 engaging a thrust bearing 45 and is rotated by a gear 39 splined to an extension 30 of the valve and held in engagement by an adjustable sleeve 42 engaging a ball bearing 41, with a gear 47, driven from the crankshaft. The cylinder head is made in two parts 15,-31 provided with fins 15a, 31a and cooling jackets 57, 58.
Patent GB-439121-A (GB)
Title: Improvements in or relating to television and the like scanning systems
IPC: H04N3/08
Filed: 1934-05-29
Abstract: 439,121. Television. BROWNE, C. O., 29, Monk's Drive, West Acton, London. May 29, 1934, No. 16038. [Class 40 (iii)] In the production of interlaced scanning, the scanning beam 2 is swept over a set of fixed mutually inclined mirrors 9, and the time of complete scanning is equal to a number of line periods which is one more or one less than an integral multiple of the number of partial scans in a complete scan. The beam of light is reflected from a rotating mirror 6, at the centre of the partial ring of mirrors, to the fixed mirrors, which reflect it back to the rotating mirror, from which the light is reflected to a screen or object 1. The angles of the fixed mirrors are so related that alternate lines are scanned. The opposite side of the rotating mirror is at such an angle to the first that, when the former is operative, the lines are scanned which were omitted during the operation of the latter. According to modifications, the double-faced mirror is replaced by a mirror drum, Fig. 3 (not shown) ; the interlacing is produced by changing the origin of the scanning-beam, Fig. 4 (not shown).
Patent GB-651667-A (GB)
Title: Apparatus for depositing liquid on sheet material and for delivering and cutting offthe wetted material
IPC: B43M11/00
Filed: 1948-06-15
Abstract: 651,667. Roll holders. MAYNE, F. J., KIBBEY, R. L., and ROBERTS, S. P. June 15, 1948, No. 16041. [Class 18] A holder for a roll of paper for use in wiping the mouthpieces of telephones, comprises a casing 10 in which is positioned a wick 16, depending into a reservoir 11 of disinfectant, which contacts the paper as it is withdrawn from the holder through a mouthpiece 26 in the casing. One edge of the mouthpiece 26 serves as a cutter for severing the paper after a sufficient length has been withdrawn. The roll is rotatably mounted in the casing and its insertion is facilitated by a removable portion 20 which is normally retained in position by spring clips. A guide roller 24 is positioned between the roll and the wick 16 and is supported in rearwardly extending slots in the casing so that a pull exerted on the paper urges the roller 24 downwardly to guide the paper into contact with the wick 16. The wick 16 is held in position by a spring clip 17 secured to a web portion 14 covering the reservoir 11, the clip being formed to distort the wick into the path of the paper. Alternatively a roller may be provided for coating the paper with disinfectant, it being partly immersed in the disinfectant and projecting up sufficiently to contact the paper.
Patent GB-1433382-A (GB)
Title: Electrical spring contact
IPC: H01R13/115
Filed: 1973-04-04
Abstract: 1433382 Two-part couplings H SIMON 4 April 1973 [4 April 1972] 16063/73 Heading H2E A spring contact formed from a blank of strip metal comprises a terminal portion 1, a mounting portion 7 and a contact portion of two arms 3 which, in the blank extend one to each side of and are inclined to the longitudinal axis of the blank, and which are folded in half across their lengths to form co-operating spring contact elements. Fig. 1 (a), (b) and (c) show three different blanks interconnected by intermediate pieces 11 which are cut when the blanks are to be folded to form respective contacts, Fig. 4 showing the contact formed from the blank of Fig. 1b. Crimping portions of the terminal portion/and an insulation-gripping portion 2 and the arms are bent to lie in a plane perpendicular to the mounting portion and the arms are folded half way along their lengths to form opposed portions for receiving a complementary contact blade, Fig. 6, tabs 5, 6 on the arms engaging recesses 15 on the blade. Holding tabs 10, 14 secure the contact in a housing (not shown). In other embodiments the terminal portion extends at right angles to the direction of the arms, and there is a bridging contact with two arms extending from each side of a central terminal portion (Figs. 42-44) suitable for connecting printed circuit boards; another embodiment shows bars (20) extending from the mounting portion having tabs (10) which bear against the spring arms to increase their resilience and also engage a hook (18) on the housing.
Patent GB-1147492-A (GB)
Title: Sound absorbing device
Inventor: ALEXANDER FRANCIS WILLIAM
IPC: E04B1/84
Filed: 1967-04-07
Abstract: 1,147,492. Sound absorbing. ACOUSTICS & ARCHITECTURE Ltd. 14 March, 1968 [7 April, 1967], No. 16148/67. Heading H3U. A sound absorbing device comprises a cavity 11 bounded on each side by walls 13 except for a front face 14 which is closed by a porous structure 15 comprising a plurality of sound absorbing layers 16, 17, 18. These layers are of successively increasing acoustic impedance in the direction towards the cavity and may be formed of glass fibres, mineral wool, or of foamed polyurethane or polyester resin. A number of such devices may be mounted together to form a wall (Fig. 1, not shown). Particular frequencies may be absorbed by placing resonator tubes 21 within the cavity 11; further, additional sound absorption may be obtained by mounting in the cavity an open grid member 23.
Patent GB-420173-A (GB)
Title: Improvements in cases or wallets for holding matches
IPC: A24F27/12
Filed: 1933-06-06
Abstract: 420,173. Wallets for matches. CANTLON, C. H., Lornesta, Kersfield Road, Putney Hill, London. June 6,1933, No. 16179. [Classes 18 and 94 (i)] A wallet for match strips comprises a paper &c. blank bent into either three or four panels with pockets 5 at the ends, on opposite sides of the blank, which is so folded that the two match strips 4, are separated by a central panel 3. The strips are secured in the pockets 5 by wire-stitching, which may pass also through the adjacent panels 2. Some of the panels may be formed with side wings. Fig. 4 shows a doubly folded pocket with a slot 6 to receive the match strip.
Patent GB-268194-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B7/22
Filed: 1925-12-23
Abstract: 268,194. Macintosh Cable Co., Ltd., and Williams, A. W. Dec. 23, 1925. Cores for cables; cables, arrangement and disposition of parts of; cables with auxiliary condensers. -In cables of the kind comprising a plurality of cores composed of an inner conductor and an outer metal sheathing insulated therefrom, the sheathed cores are spaced apart by longitudinally extending pads of suitable insulating material. Fig. II shows one construction in which the dual power cores 2, consisting of an inner conductor 2<c>, insulation 2<b> and outer metal sheathing 2<a> are separated by pads 4 and are disposed around a centrally disposed earthing conductor 3 which may also be of dual construction. In this arrangement, the sheaths of the power cores and of the earthing conductors are in contact and form therewith a return for the earth current. Fig. IV shows an alternative construction, in which the earthing conductor is solid and a check earth core 9 is provided in one of the spacing pads. In the arrangement shown in Fig. III, two of the power cores 2 are arranged with their sheaths in contact with each other and the earth core 5 and spaced by a pad 6 from the third power core 2<d>, the sheath of which acts as a pilot earth conductor. In. this arrangement, an additional insulating covering 7 is provided for the core 2d. In all the arrangements shown, the metal sheaths may consist of a series of wire cords, each consisting of a group of spirally twisted strands, spirally twisted in one direction around the core.
Patent GB-164742-A (GB)
Title: Improvements in or relating to the manufacture of hydrochloric acid
IPC: C01B7/03
Filed: 1921-06-13
Abstract: 164,742. Volart y Jubany, R. June 11, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Hydrochloric acid; caustic soda.-Fused sodium chloride is treated with superheated steam in the presence of a catalyst, e.g. pumice stone, in order to yield hydrochloric acid and caustic soda. Salt is dehydrated in the covered iron-plate boiler 20 and is melted in the receptacle 13 heated by waste gases from the fire used to heat the reaction chamber 1, containing the catalyst. There are three melting receptacles arranged round the chamber 1 so that, while one is being heated, another is being charged, and the other discharged. Each is provided with a safetyvalve and a pyrometer to indicate when the charge is melted. Both reaction chambers and melting receptacle are made of volcanic lava to avoid corrosion by the acid and alkali. Superheated steam enters through the ring pipe 12 and the resulting caustic soda is withdrawn through the pipe 7 which is provided with a steam jacket. The hydrochloric acid leaving by pipe 5 is condensed in the known manner by means of a system of towers; for instance the sand-stone towers 21, 23, 24, 22. The gas is cooled in the tower 21 and after passing through the small towers 23, 24 is completely absorbed in the tower 22 containing coke which is sprayed with water. An acid of 21-22‹ BÚ is withdrawn from the towers 24. A sandstone fan placed at the exit at the bottom of the tower 22 sucks the gas through the apparatus.
Patent GB-347039-A (GB)
Title: Improvements relating to apparatus for sorting or separating coal and other minerals
IPC: B07B13/10
Filed: 1930-05-27
Abstract: 347,039. Separating solid materials. BARKER, W., Shooters Hills, near Longton, Stoke-on-Trent. May 27, 1930, No. 16277. [Class 117.] In apparatus for separating coal and other minerals of the kind in which the materials are caused to slide down an inclined shoot e and over a gap k, the shoot is given rapid vertical vibratory movements of small amplitude to assist the passage of the materials. The arrangement described consists in pivoting the forward end of the shoot at f and imparting the vibratory movements to the rear end l by means of a rotary unbalanced shaft, a cam and spring or an electromagnet and spring. Preferably the materials are fed to the shoot e by a jigger a mounted on a link b and driven by an eccentric d. The front end of the jigger may be more inclined than the rest and disposed so that the materials may slide on to the separating shoot e without an appreciable drop. Successive stages may be provided to treat the materials passing through the gap k, as shown, the jiggers in this case being driven from the preceding one by a lever j. An air blast may be used to assist the movement of the materials on the shoot.
Patent GB-467873-A (GB)
Title: Process for producing fired articles of which silicon is a constituent
IPC: C04B35/58
Filed: 1936-06-11
Abstract: Ceramic ware of which silicon or silicon alloy is an essential constituent is fired at a temperature above 1250 DEG  C. and below the softening temperature of the ware or the fusing point of silicon, precautions being taken to prevent oxygen acting on the silicon. The firing may be effected in an atmosphere containing little or no free oxygen, or may be rapid to produce vitrification quickly. Saggers containing carbon may be used to protect the ware from oxygen.  If liquid or gaseous fuel is used the proportion of air is regulated so that the firing atmosphere contains no free oxygen.