baber/WOPTO huggingface dataset:
Patent GB-479301-A (GB)
Title: Improvements in the washing out of weak acids from gases
IPC: B01D53/52
Filed: 1936-08-11
Abstract: In the removal of a weak gaseous acid, such as hydrogen sulphide, from gases such as coke-oven gas, coal gas, and blue water gas, by means of an alkaline washing agent capable of regeneration by heating, together with the separate removal of a substance, such as a cyanogen compound, which forms a compound difficulty capable of regeneration with the aforesaid alkaline washing agent, the gas to be purified is preliminarily washed in a first stage with a liquid alkaline agent to remove the deleterious substance before proceeding to the main washing stage referred to.  Suitable alkaline washing agents capable of regeneration by heating comprise alkaline-reacting salts of weak acids such as sodium or potassium carbonate or organic bases such as triethanolamine, monoethanolamine, alanine sodium salt, dimethylglycocoll potassium salt, and diaminopropanol.  The substances may be used in the free state or together with boric acid in aqueous solution.  Suitable liquid alkaline agents for use in the first stage comprise all aqueous alkaline solutions such as ammonia, sodium, potassium or ammonium carbonate, suspensions of calcium or magnesium hydroxide, waste ammoniacal liquor, sodium carbonate solution containing iron oxide suspension, and polysulphide solutions.  The last named may be formed in the scrubbing tower by starting with an aqueous solution of ammonia, alkali metal carbonate or pure water, and then circulating the used liquor over lumps of sulphur before returning it to the washing tower.  Instead of sulphur, bog iron ore may be used.  If volatile washing agents are used such as ammonia, the volatile substance is removed before the main washing stage by means of water, sulphuric acid &c.  In addition to inorganic washing agents for the preliminary purification, organic nitrogenous substances may be used such as amines or amino-alcohols, particularly pyridine, quinoline, triethanolamine, carbamates.  These may be used in aqueous, oil or petroleum solvents.  The preliminary washing may be carried out in the cold or at temperatures up to 100 DEG  C. and increased pressure may be used.
Patent GB-696261-A (GB)
Title: Improvements in or relating to hot dip galvanizing with the use of alloys
IPC: C23C2/06
Filed: 1951-09-24
Abstract: In a galvanizing process, at least one alloy is introduced into a molten zinc bath through a casing having an open end below the surface of the zinc.  A suitable flux for the process may contain the chloride of an alkali metal or a fluoride, or both.
Patent GB-742277-A (GB)
Title: Method of and apparatus for cooking foodstuffs
IPC: A47J27/16
Filed: 1953-08-13
Abstract: 742,277. Steam cooking-apparatus. OEHRING, O. Aug. 13, 1953 [Aug. 16, 1952; April 30, 1953; May 18, 1953; May 20, 1953], No. 22375/53. Class 28(1). Food, e.g. ham in a mould, is cooked in a chamber 16 by impelling hot air saturated with water vapour through the chamber from bottom to top, or top to bottom, by a fan 5. The hot air is circulated in a closed path through the container 16 and through a surrounding passage 12. The air is moistened by passing over the surface of a water bath 18 at the bottom heated by gas burners 110. The hot gases from the burner pass through vertical tubes 111 in the air passage. In a modification without a water bath, the air is heated by steam or electric heating elements in the air passages.
Patent GB-466695-A (GB)
Title: Improvements in and relating to machines for decorticating bast fibre stalks
IPC: D01B1/30
Filed: 1936-08-15
Abstract: 466,695. Decorticating bast fibre stalks. ETRICH, I. Aug. 15, 1936, No. 22532. Convention date, Oct. 7, 1935. [Class 120 (i)] In a machine for decorticating bast fibre stalks having overlapping scraping knives 2, 2<1>, Fig. 1, which move in a straight line in the working zone, the knives interengage in pairs at a small distance apart and tension devices 3, 3<1> movable with the knives are provided in front thereof, only one pair of knives together with its corresponding tension devices being in engagement with the stalks at any time. The scraping knives 2, 2<1> are mounted on endless carriers 1, 1<1>, e.g. chains or rubber bands. The tension devices 3, 3<1> may be of flat strip form Fig. 2, having straight or wavy working edges, or rounded as shown in Fig. 3. Alternatively, when treating retted fibres a tensioning comb 4, Fig. 4, is substituted. In operation, the stalks 5 are bent sharply between the knives 2, 2<1> which scrape along the bent stalks and the necessary tension is produced by the members 3, 3<1> which may be separated by a greater distance than the knives 2, 2<1>.
Patent GB-1429587-A (GB)
Title: Hollow conductor pber cable
IPC: H01B7/42
Filed: 1974-05-21
Abstract: 1429587 Electric cables INTERNATIONAL STANDARD ELECTRIC CORP 21 May 1974 [22 May 1973] 22547/74 Heading H1A An electric cable with a hollow conductor has this central duct partially filled in by other conducting layers in localized regions where the cable would otherwise tend to run at a hotter temperature because of increased electrical insulation as at joints or decreased cooling as at the land ends of submarine cables. The extra layers 13, 23, 33 which can be gradually introduced to locally reduce the electrical resistance of the conductor can be of pipe form, segmented wires or wires wound on a smaller diameter helical cores 11, 21, 31. The central duct can be force cooled as by circulating oil through it.
Patent GB-660275-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B23/08
Filed: 1948-08-26
Abstract: 660,275. Cylinders. PESCARA, R. P. Aug. 26, 1948 [Sept. 20, 1947],No. 22552/48. Class 7(ii) In an internal combustion engine in which an inlet valve 3 and an exhaust valve 4 are disposed in a cylinder head 2 which forms, with a piston 1 having an unsymmetrical projection 7, a combustion chamber comprising a cold zone 5<SP>1</SP> of small height opposite the valve 3 and a larger hot zone 5<SP>11</SP> opposite the valve 4, a sparking plug being disposed in the hot zone, the axes of the valves are in a common plane which is an axial plane of the cylinder, the heads of the valves are immediately adjacent one another, and the sum of their diameters is substantially equal to the diameter of the cylinder, the total volume of the combustion chamber when the piston is at inner dead centre is such that the compression ratio is equal to or greater than seven, and the ignition has a considerable lead, e.g. an angle of 40 degrees for an engine speed of about 3,000 revolutions per minute. To improve turbulence, the cylinder head and the piston projection may be given a width smaller than the diameter of the engine cylinder, in a plane at right angles to that containing the axes of the valves, Fig. 3 (not shown).
Patent GB-911236-A (GB)
Title: Improvements in or relating to life-rafts and like articles intended to be inflated on water
Inventor: MITCHELL SIDNEY
IPC: B63C9/02
Filed: 1960-06-28
Abstract: 911,236. Inflatable craft. R. F. D. CO. Ltd. June 7, 1961 [June 28, 1960], No. 22598/60. Addition to 887,940. Class 113. An improvement in or modification of the inflatable article claimed in the parent Specification comprises an inflatable boat which has buoyancy chambers 11 and 12 inflated through aspirators 13 and 14 and means for ensuring that the parts of the chambers 11 and 12 adjacent the aspirators are inflated in advance of the remaining parts to lift the aspirators above the water, comprising co-operating strips of tape 15, 17 and 16, 18 which have the property of clinging together when brought into surface contact when the boat is packed in its valise, but of being separable when pulled apart on build-up of the inflation pressure in the buoyancy chambers. The co-operating strips may be of flexible material provided respectively with a multiplicity of small hooks and cooperating loops, zip-fasteners arranged so that the teeth at one end are not locked, or rows of magnets or press-studs.
Patent GB-1425734-A (GB)
Title: De-watering of pervious moulds used for slip-casting ceramic  articles
IPC: B28B7/26
Filed: 1973-05-12
Abstract: 1425734 Slip casting BRITISH CERAMIC RESEARCH ASSOCIATION 24 May 1974 [12 May 1973 2 Nov 1973] 22745/73 and 51084/73 Heading B5A An assembly of slip casting moulds is composed of abutting units 10-11, 12-13 and 14- 15 providing casting cavities 16, e.g. for lavatory basins, and separate cavities 18 through which air is circulated either under pressure or suction whereby moisture is removed from the mould pores. The units may, alternatively be made in one piece; the moulds may be longitudinally and laterally inclined. The casting cavities may be traversed by air after removal of the castings.
Patent GB-750178-A (GB)
Title: A means for preventing the twisting or tangling of fishing lines
IPC: A01K89/00
Filed: 1953-08-18
Abstract: 750,178. Fishing reels. PARLOUR, E. W., and MEAGER, H. Nov. 18, 1954 [Aug. 18, 1953], No. 22751/53. Class 48. A means for preventing the fishing line from running around the back of the reel comprises a wire 3 extending from the reel rearwardly towards the butt end of the fishing rod. A loop or circlip 4 at the rear end of the wire 3 engages the rod. The other end of the wire may engage in a hole 5 in the fixed plate of the reel or it may bear on the fixed plate and be held thereon by its resilience or it may have a clip for engaging the fixed plate.
Patent GB-1429354-A (GB)
Title: Automa5tic equalizer
IPC: H04L25/04
Filed: 1973-05-14
Abstract: 1429354 Digital phase equalization INTERNATIONAL BUSINESS MACHINES CORP 14 May 1973 [1 June 1972] 22755/73 Heading H4R An automatic digital signal phase-distortion correcting equalizer comprises series-connected filters 7-17, Fig. 2B, which are selectively switchable individually or in groups by control circuitry 51 individually to have either a parabolic or a constant delay distortion-frequency characteristic, the parabolic characteristic of each filter being tuned to a different centre frequency and overlapping but not including the parabolic characteristic of at least one other filter. The eye measurement of a signal applied to line 1 is obtained in respect of each group of a programme of groups of enabled filters by full wave rectification in 33 and is compared in 45 with the better one derived from the previous comparison and which has been retained in one of the stores B, C. The programme is run through and the optimum group is determined and set. Steering circuit 35 under the control of circuit 51 determines the application of the current signal eye measurement to the store made vacant after the previous comparison. A filter 11, Fig. 5, may consist of an operational amplifier 304 having two inputs via resistors 305, 310 and a magic T network 307, 308, 309, 311 which in the grounded state of switch 55 produces the linear phase characteristic and in the open condition of 55 produces the parabolic characteristic. The arrangement includes a two-part, switch in-switch out amplitude equalizer 19 which is also controlled by circuit 51 in accordance with the eye measurement. The equalization may be effected during the synchronization period of the synchronization period of the transmission.
Patent GB-524196-A (GB)
Title: Eye-pieces and other transparent members
IPC: G02C11/08
Filed: 1939-01-21
Abstract: 524,196. Preventing condensation of moisture on transparent members. WALKER, W. Jan. 21, 1939, Nos. 22882 and 22883. Divided out of 524,064. Drawings to Specification. [Class 20 (iii)] [Also in Group XX] A transparent window closure or the like comprises two transparent sheets at least one of said sheets being composed substantially of thermoplastic organic material, said sheets being united by an annulus of thermoplastic material to which both sheets are adherent. The organic material may be cellulose acetate, acetatepropionate, or acetate - butyrate. Further examples of suitable materials are also given. Specifications 510,724 and 510,802, [both in Group IV], are referred to.
Patent GB-186791-A (GB)
Title: Improvements in or relating to roller bearings
IPC: F16C19/36
Filed: 1921-08-29
Abstract: 186,791. Wade, H., (Miller, G. L.). Aug. 29, 1921. Roller bearings.- In a roller bearing having single-point rolling contact between a thrust flange 3 and the ends of conical rollers C, the thrust surface 4 is arranged approximately at right-angles to the inner cone 1. The ends 5 of the rollers, which are normal to the axes of the rollers, are rounded at 5<a>, and point contact occurs at 7. If, in operation, a roller deviates slightly from its true line contact with the cone, a new point of contact with the surface 4 is established such that a corrective moment is applied to restore the roller to its proper position. An inner flange 10, which may be in the form of a split ring, is provided to maintain the bearing in assembled relation. The rollers are spaced by a slotted flanged shell D, but the slots are large enough to allow the self-righting action of the rollers. The thrust flange may be formed on the outer instead cf on the inner cone. The ends of the rollers are recessed at 8 to receive lubricant, and annular recesses 9, 10<a> are formed at the roots of the flanges.
Patent GB-1009517-A (GB)
Title: High molecular weight condensation copolymers of alkylene polyamines and epihalohydrins
IPC: C02F1/52
Filed: 1963-06-10
Abstract: A method for preparing stable, epihalo hydrin-alkylenepolyamine condensation copolymers having a high molecular weight within the range of 10,000-20,000 comprises the steps of: slowly adding an epihalohydrin to an aqueous, concentrated, agitated solution of an alkylenepolyamine having a 25-60% concentration by weight to form an aqueous reaction mass thereof, the addition being at temperatures of 105 DEG  to 185 DEG  F. until the mol. ration of epihalohydrin to alkylenepolyamine is within the range of 1.4 : 1 to 2.2 : 1, further polymerizing the reaction mass, after the addition, within the range of 150-185 DEG  F. while slowly simultaneously diluting the concentrated reaction mass to a final copolymer solids content of 10 to 30% by weight; and adding at least 0.2% by weight of the total reaction mass of a reducing agent to prevent further polymerization and gelation.  High molecular weight condensation copolymeric compositions comprise aqueous solutions containing 10-30% by weight of an epihalohydrin-alkylenepolyamine condensation copolymer of molecular weight of 10,000 to 20,000 and at least a stabilizing amount of a reducing agent, the solution having a viscosity of at least 200 c.p.s., when measured as a 20% by weight aqueous solution of the copolymer at 75 DEG  F.  Epihalohydrins specified are epichlorohydrin, epibromohydrin and epi-iodohydrin; many alkylenepolyamines are specified which are alkylenediamines or polyalkylenepolyamines. Reducing agents specified are hydrogen sulphide, alkali metal sulphites, stannous chloride, hydriodic acid, ferrous chloride and sulphur dioxide.  The copolymers are useful as precipitants for the clarification of water.ALSO:High molecular weight (10,000-20,000) epihalohydrin-alkylenepolyamine condensation copolymers are used as coagulants in the clarification of water.
Patent GB-255676-A (GB)
Title: Improvements in self-acting mules and twiners
IPC: D01H3/12
Filed: 1925-09-15
Abstract: 255,676. Pickford, J. Sept. 15, 1925. Mules and twiners.-In an arrangement for holding the boot-leg out of contact with the locking-bowl until the boot-leg rises to move into the locked position, the stop means are situated centrally to eliminate any tendency of the parts concerned to twist. One of the stop members, which are of comparatively large area, is carried adjustably on the mule carriage and the other either on the link or on the boot-leg itself. The link 1, Fig. 1, may consist of two parallel members embracing the boot-leg 3 and the chain pulley 4. The members are connected by a cross-piece with a depending stop part having a vertical face 6 and a sloping face 7. The other stop part 9 is carried by the slide 8 and has corresponding faces 10, 11. The part 9 is horizontally adjustable on a lug 13 on the slide 8 and is secured by a, bolt 16. Vertical adjustment is secured by adjustment of the slide. The pivotal point 5 of the link 1 is lower than the pivotal connection at the other end of the link. The movement of the part 6 during the locking movement is first in an arc away from the part 10 and then in a straight inwardly falling path clear of the part 10. The link 1 may comprise a single member, the stop part being offset from it to occupy a central position, or the link may comprise a single member 31, Fig. 9, with a bifurcated end 30, embracing the boot-leg 29, the stop part 6 being formed as a depending central lug 32. The stop-part 6 may be formed as an elongated lug 28, Fig. 7, on the boot-leg itself. The lug extends on both sides of the central plane of the boot-leg.
Patent GB-394831-A (GB)
Title: Apparatus for drawing off the material from flat knitting machines
IPC: D04B15/90
Filed: 1932-08-17
Abstract: 394,831. Knitting-machines. ELITE-DIAMANTWERKE AKT.-GES., Siegmar, near Chemnitz, Germany. Aug. 17, 1932, No. 23079. Convention date, Dec. 3, 1931. [Class 74 (ii).] The fabric take-up roller 1 of a parallel machine is divided into a number of parts, each of which is driven by a friction coupling element. In one form, Fig. 1, endless spiral springs form a driving belt 23 for each of the roller sections. Ir the form shown ir Fig. 5, each section is driven by a fric. tion pad 12 urgec against the driving shaft 5 by a leaf spring 13 adjustable by a screw 14. Ir another form fric tion discs arranged between the sections are controlled by springs arranged for axial thrust upon the discs. An expanding ring friction drive is also described.
Patent GB-690060-A (GB)
Title: High speed magnetic fluid clutch
IPC: F16D37/02
Filed: 1950-09-20
Abstract: 690,060. Clutches. RABINOW, J. Sept. 20, 1950 [Nov. 17, 1949], No. 23081/50. Class 80 (ii). In a magnetic fluid clutch comprising a magnetic coil-carrying member 10, Fig. 1, on one shaft 8 with an annular air gap between the member 10 and a magnetic drum 4 on the other shaft 3 containing an iron-oil mixture, the quantity of iron powder in the mixture is sufficient only to fill the gap, so as to secure quick release of the clutch on de-energisation of the coil 11. The mixture is retained in the drum by packing 9, and, if replenishment becomes necessary, only additional oil is supplied, so as not to increase the total quantity of iron powder. In the form shown in Fig. 2, shaft 8 carries a flange 21 extending axially between drum 4 and member 10 carried by shaft 3, the coil 11 being mounted in member 10. Holes 22 provide for circulation of the iron-oil mixture, the quantity of iron powder being sufficient only to fill the annular gaps between flange 21 and the parts 4, 10 or only the gap between the parts 4, 21.
Patent GB-337383-A (GB)
Title: Improvements in mouth and tooth cleansing apparatus
IPC: A61C17/02
Filed: 1929-07-26
Abstract: 337,383. Paulin, J. G. July 26, 1929. Syringes. - An apparatus for cleaning the mouth and teeth comprises a nozzle 1 and a rigid tubular handle part 4 connected together to form a U-bend, the tubular part, forming one of the parallel limbs of the U, having its free end mechanically connected by flexible tubing 6 to a collapsable pressure-producing container 5 or a container for rinsing liquid. The nozzle and the tubular part are interconnected by a joint 3 located in the base limb of the U enabling the nozzle to be rotated such that any point at the free end of the nozzle moves in a plane parallel to a plane coinciding with the polar axis of the tubular part. The nozzle itself may comprise two mutually adjustable parts 1, 8, Fig. 2, and may be provided with a plurality of fine orifices 14, Fig. 4. In a modification, Fig. 3, the U-bend comprises flexible metal tubing 10.
Patent GB-316780-A (GB)
Title: Improvements relating to road dressing and road making materials
IPC: C08L95/00
Filed: 1928-08-10
Abstract: 316,780. Burt, Boulton, & Haywood, Ltd., and China, F. J. Aug. 10, 1928. Emulsions, making.-To an aqueous emulsion of bitumen or refined coal-tar, employed in making and dressing roads a fine aqueous suspension of coal-tar pitch is added. The mixture is stated to break down more readily when applied to the road and to form a harder and more coherent layer. The proportion of added suspension is preferably such as to give 30-50 per cent thereof in the final mixture. The suspension is prepared with only a very small proportion of stabilizer. An example of the invention is as follows. To 500 gals. of an emulsion of refined tar, containing 65 per cent of tar, 31¢-32¢ per cent of water and 2¢- 3¢ per cent of alkaline casein and prepared in a colloid mill is added 500 gals. of a similarly prepared emulsion of coal-tar pitch of 85‹ C. melting-point comprising 40 parts of pitch and 60 parts of water containing ¢ per cent of casein.
Patent GB-360365-A (GB)
Title: Improvements in liner blocks for tubular fluid-cooled furnace walls
IPC: F23M5/08
Filed: 1930-07-31
Abstract: 360,365. Furnace walls. AMERICAN ENGINEERING CO., Aramingo Avenue, Philadelphia, U.S.A. July 31, 1930, No. 23140. Convention date, June 7. [Class 51 (i).] In a liner block for tubular fluid cooled furnace walls, of the type having a base member secured to the tubes.and a protective refractory member secured detachably to the base member, the base member is_ provided with a recess having projecting lugs engaging frictionally with recesses in the facing member which by a predetermined movement may be detached from the base member. Figs. 3 and 4 show one form of block comprising a base member 1 having recesses 4 to engage the cooling-tubes and a recess 5 to receive the facing member 2. which is provided with a rear portion 12 adapted to fit the recess 5. During the insertion of the member 2, the bottom of the rear portion 12 is passed over lugs 9 in the base member and recesses 16 allow the passage of lugs 11 after which the facing member is lowered and interlocked by the lugs 9, 11 engaging with recesses 14, 15. Figs. 6 shows a modification in which the base member 1 is provided with a recess 19 having undercut side and bottom flanges and adapted to receive by insertion at the top facing members 2a, 2b having inclined abutting faces 24, 25 and a lug 27 engaging with a recess 26. In a further modification in which the facing member is inserted into a recess in the base member from the front, the side walls of the recess are provided with tapered lugs to engage with corresponding recesses in the facing member. Figs. 17 and 18 show the base and facing members 1, 2 having tapered lugs 45 and recesses 48, 49 respectively for securing the members together, while Figs. 22 and 23 show the base and facing members 1, 2 provided with L-shape flanges 56 adapted to engage with L-shape recesses 58, 59. Further modifications are described and illustrated in which the rear wall of the recess in the base member are provided with tapering projections engaging with corresponding recesses in the facing member.
Patent GB-675919-A (GB)
Title: Improvements in or relating to disc-type motors and generators
IPC: H02K3/12
Filed: 1950-09-21
Abstract: 675,919. Induction machines. SIEMENSSCHUCKERTWERKE AKT.-GES. Sept. 21, 1950 [Sept. 21, 1949], No. 23224/50. Class 35. A polyphase or pole-changing single-phase winding for dynamo electric machines of the disc-type is flat and is accommodated in substantially radial open slots. Fig. 1 shows a stator core 1 having radial slots 2 in which coils 30, 31 are placed. Fig. 2 shows three layers 3, 4, 5 of flat windings inserted in the slots 2 of the stator core 1 and a rotor 7 having squirrel cage winding 8. Each coil can be separately machine wound, e.g. into a sleeve 40 the edges 50 of which ca be turned over after the winding operation. The sleeve may consist of spun foil, e.g. triacetate foil secured by a solution e.g. methylene chloride. The coils may be made to withstand high voltages. They may be externally metallized. For still higher voltages, the coils have metallic intersheaths or coatings within their dielectric.