baber/WOPTO huggingface dataset:
Patent GB-685930-A (GB)
Title: Segregating solids by grain size
IPC: B03B4/06
Filed: 1950-01-26
Abstract: In a process of continuously separating granular materials into coarse and fine fractions above and below a predetermined grain size, the materials are fed to a fluidized bed thereof maintained in a closed vessel and gas-permeable support through which fluidizing gas is passed at a predetermined velocity adjusted p  according to the size and density of the fines to be entrained the roarser fraction residual in the fluidized bed being maintained at at least two-thirds by weight of the total bed content.  The velocity of the gas leaving the bed, in centimetres per second, necessary to effect a desired separation is calculated from the formula:-  <FORM:0685930/II/1> where S = a shape factor having a value about 1 for individually equi-dimensional particles.  n = a constant varying from 0 to 1, which usually has a value of 0.6.  g = the acceleration due to gravity in centimetres per second2.  d = true particle density in grams per centimetre3 of the lightest material entrained in significant quantities.  D = maximum particle diameter in centimetres of the predetermined largest mesh size entrained in the fluidizing gas.  p = gas density in grams per centimetre3.  m  = the gas viscosity, in poises.  For the particular conditions wherein finer than 1/2 -inch material of equi-dimensional particles is to be separated into fractions above and below a size of 20 Tyler screen mesh, the formula reduces to:-  <FORM:0685930/II/2> If the gas used is air at atmospheric pressure and a temperature of 70 DEG F the formula becomes:-  <FORM:0685930/II/3> Separation may be conducted in an enclosed reactor vessel with a continuous feed of material from a point spaced above the fluidized bed, the latter being supported in a perforated plate near the bottom of the reactor, above the inlet for the fluidizing gas.  The coarser residue is drawn from the bed surface through a spill pipe, and the feed, which may contain fines of diverse materials, is such as to maintain at least two-thirds by weight of coarse solids in the bed at any given time.  The temperature of the fluidizing bed may range from 70 DEG F to calcining temperatures up to about 1850 DEG F, the higher temperatures being used to effect a drying of the material and, where desired, calcining of the fines.  Calcining by this method is effected so quickly as to minimize particle growth and, it is stated, yields "hot" fines.  The heating of the fluidized bed may be effected by supplying extraneous heat thereto or by the use of heated fluidizing gas.  Specification 658,611, [Group XII], is referred to.
Patent GB-1381961-A (GB)
Title: Unitary container
IPC: B65D5/54
Filed: 1972-01-17
Abstract: 1381961 Interconnected cartons SOC DE CONDITIONNEMENT EN ALUMINIUM SCAL GP and ETABS THIMONNIER 17 Jan 1972 [18 Jan 1971] 2095/72 Heading B8P A block container comprises interconnected cartons, e.g. A-D, which can be individually separated for content removal. The container is erected from a collapsible preform which may be made by superimposing the two panels 2, 3 shown in Figs. 1, 2 and then interconnecting the panels 2, 3 over zones 4, 5. The preforms may be formed from discrete panels as shown, from two superimposed webs or from a centre-folded web. The preforms may be supplied in a flat, roll or zig-zag form. In the erected container, interconnected zones 4, 5 lie alternately on opposite sides of the central longitudinal plane of the container and are provided with perforated lines 15 to facilitate carton separation. Each zone 4, 5 or, as shown, one zone of an interconnected pair is defined by score lines (7). Gable tops (Figs. 7, 10, 11), and pouring spouts (Fig. 11), defined by score lines 8<SP>1</SP>, 10<SP>1</SP>, 12<SP>1</SP>, 13<SP>1</SP> and 14 respectively may be provided. Gusseted bottom closure flaps (Figs. 8, 9), defined by score lines 8, 10, 12, 13 may be provided. Parts of the score line 8 defined by the ends of the score lines 12 may be curved towards the centre line of the respective panel. The top and bottom closures may be formed by cutting flaps into strips 9, 9<SP>1</SP> The panels 2, 3 may be formed of plastics material which may be expanded or may be formed of cardboard which may be covered with a polythene film. An internal or external aluminium sheet may be applied. The zones 4, 5 may be interconnected by glueing or by heat or ultrasonic welding. The cartons may have a square or rectangular cross-section. For the former, each score line 6 is equally spaced from each pair of zones 4, 5 and for the latter, unequally spaced therefrom.
Patent GB-950697-A (GB)
Title: Handles for mattresses
Inventor: DOCKER LESLIE THOMAS
IPC: A47C31/08
Filed: 1962-01-22
Abstract: 950,697. Mattress handles. SLUMBERLAND GROUP Ltd. Jan. 10, 1963 [Jan. 22, 1962], No. 2185/62. Heading A4M. A mattress handle is moulded in one piece from a resilient plastic and has spaced ends 12 which are inserted through openings in grommets or eyelets 14 mounted in the border 15 of a mattress by means of a backing plate 21, each end 12 having an integral flap 13 which normally diverges from the handle but which can be closed against it so as to pass through the opening in the grommet.
Patent GB-799880-A (GB)
Title: Improvements in and relating to enclosed spark gaps
Inventor: ACTON JOHN REGINALD
IPC: F02C7/26
Filed: 1956-01-23
Abstract: 799,880. External spark gaps. ERICSSON TELEPHONES, Ltd. Feb. 18, 1957 [Jan. 23, 1956]. No. 2223/56. Class 7(4) [Also in Group XL(a)] A spark gap, suitable for operating high energy sparking plugs for example for starting gas turbines, comprises two copper discs 14, 15 sealed through the wall of a glass envelope containing hydrogen at a pressure of 80 m.m. of mercury, or helium or a mixture of hydrogen and helium. The discs 14 and 15 are centrally apertured and have annular dishings 16 and 17 which form the electrode surfaces. The portions of the discs 14 and 15 outside the envelope provide terminals for external connection. A method of manufacturing the spark gap is described (see Group XL(a)) in which the envelope portions 10, 13 and 11 and the discs 14 and 15 are assembled on a vertical rod which passes freely through the exhaust tubulation 12 prior to sealing off, and through the apertures in the discs .14 and 15.
Patent GB-1261831-A (GB)
Title: Improvements in burner devices
Inventor: KUNIOKA KAZVO
IPC: F23D11/12
Filed: 1969-01-14
Abstract: 1,261,831. Burners. NIPPON KOKAN K.K. 14 Jan., 1969, No. 2265/69. Heading F4T. A device functioning either as a burner e.g. of fuel oil and oxygen, or as an oxygen lance, comprises an oxygen supply tube 1 having three symmetrically disposed convergent-divergent (Laval) outlet nozzles 8 at one end, and a concentric inner fuel supply pipe 2 having its outlet end fitting in a socket at the outlet end of tube 1 and connected to a distributing chamber 12 therein, the chamber being connected to each nozzle 8 at the outlet side of the nozzle throat 18 by a corresponding bore 7. Under high pressure the oxygen attains supersonic flow through the nozzles, and the fuel is vaporized as it enters the nozzles. The axes of the nozzles are at a small angle to the longitudinal axis of the tube. There is provision, 3-6, for water cooling. (For Figure see next column.)
Patent GB-785442-A (GB)
Title: Improvements in or relating to agricultural machines
IPC: A01F29/06
Filed: 1954-01-26
Abstract: 785,442. Harvesting and cutting-up forage crops. FERGUSON, Inc., H. Jan. 26, 1954 [Jan. 26, 1953], No. 2275/54. Classes 5(1) and 6(3). A machine for harvesting and threshing or cutting-up forage crops comprises reaping means 20 followed by means for feeding the crop to the threshing chopping mechanism 12 and including two pairs of parallel feed-rollers the lower ones 25, 27 of which are supported on the machine frame while the upper ones 26, 28 are carried by arms 40 pivoted on the machine frame, the upper rollers being spring-loaded into contact with the lower and constrained to move always parallel with them. The reaping means comprises a conventional cutter-bar 20 and discharges on to a pair of side-by-side belt-conveyers 22, 23, a screw conveyer 24 being mounted at the top of the shorter belt 23 to discharge material transversely on to the other. The chopping mechanism shown, Fig. 2, consists of a housing 12 containing a rotor 11, having knives 12<SP>1</SP> co-operating with a fixed ledger-blade 13<SP>1</SP> and discharging the cut-crop through an opening 14. The lower rollers 25, 27 have spindles 31, 32 rotatable in fixed brackets 30 on the machine-frame, but the spindles 35, 36 of the upper rollers are carried by arms 39 pivoted at 43 to the arms 40, themselves pivoted at 45 to the frame and urged downwardly by springs 56. To ensure that the arms 40 on each side of the machine always remain parallel, the arms are bolted together by a shaft 51 which carries a pair of freely rotatable pinions 53 engaging fixed arcuate racks 54 on each side of the frame. The pivot 43 permits the rollers 26 and 28 to move relatively to one another. The drive to the upper rollers is maintained by a chain which passes around all the rollersprockets and around two floating jockeypulleys 70, 71 on pivoted arms 74, 75 spring- loaded apart. The upper rollers are corrugated and the lower are plain, the forward lower roller 25 carrying the belt 22. The machine is mounted alongside a tractor T and the various moving parts are driven from the power takeoff through a belt 79. A reel 21 co-operates with the cutter-bar 20.
Patent GB-1456902-A (GB)
Title: Drriving and steering system for a motor driven artillery piece
IPC: F41A23/34
Filed: 1974-01-17
Abstract: 1456902 Gun-carrying vehicle BOFORS AB 17 Jan 1974 [17 Jan 1973] 02317/74 Heading F3C [Also in Division B7] A motor driven vehicle to carry a gun 1, Fig. 1, has wheels 5, 6, Fig. 3, each of which having a respective motor 14, 15 which can be controlled variably to drive and steer the vehicle, and has at least one pivotally-mounted supporting wheel. In an embodiment the vehicle has an internal combustion engine 9 which drives pumps 12, 13, via a gear 11, so as to supply the respective motors 14, 15 with hydraulic medium from a tank 20. Each pump is controlled in speed and direction by a respective lever 16, 17. Pivotallymounted supporting wheels 7, 8, Fig. 2, are provided. Each wheel 5 or 6 is provided with a reduction gear 18 or 19, Fig. 3.
Patent GB-1457738-A (GB)
Title: Key-operated locking mechanism
IPC: B60K15/04
Filed: 1972-10-17
Abstract: 1457738 Locking petrol caps PRESSWORKCOMPONENTS Ltd 17 Jan 1974 [17 Oct 1972] 02339/74 Heading B8T [Also in Division E2] The disclosure corresponds to that of the parent patent but the claims are directed to a key-operated locking mechanism including a rotatable key-operated member and locking means formed by inherently-resilient material which can prevent rotation of the member and which is displaceable by the key in a direction substantially parallel to the direction of insertion of the key into the mechanism to release the member.
Patent GB-566068-A (GB)
Title: Coating compositions
IPC: C09D101/18
Filed: 1943-02-12
Abstract: A substantially resin-free coating composition containing a derivative of cellulose, e.g. cellulose nitrate, cellulose acetate, mixed cellulose esters, cellulose ethers, is made tough, adherent and more resistant to the pick-up of dirt, by incorporating therein a halide of an aliphatic long-chain derivative of a heterocyclic nitrogen base in which the aliphatic radical is linked directly with the nitrogen atom.  Compounds in which the aliphatic radical contains between 10 and 18 carbon atoms inclusive are preferred, e.g. cetyl pyridinium bromide, cetyl pyridinium iodide, lauryl pyridinium chloride, hexadecyl pyridinium bromide, octadecyl pyridinium bromide, dodecyl pyridinium chloride.  Plasticizers and/or softeners may be incorporated in the composition preferably in the proportion of 2 to 4 parts to 10 parts of the cellulose derivative.  The composition is particularly suitable as a coating for bowling pins.  The pins are preferably coated with a primer containing, for example, polyvinyl butyral resin, cellulose nitrate, shellac, ethyl alcohol, butyl acetate, butyl alcohol and high solvency solvent naphtha, and subsequently given two coatings with compositions containing an anti-dirt collecting agent of the type described.  The number of coats may be varied and other types of primer may be employed, but the top coating must include an anti-dirt collecting agent.  The coating composition may contain clear vehicles, pigments and a very small amount of a resin. Examples are given of compositions comprising (1) cellulose nitrate, castor oil, dibutyl phthalate, dicyclohexyl phthalate, titanium dioxide, zinc oxide, high solvency petroleum naphtha, butyl acetate, ethyl alcohol, methyl ethyl ketone, butyl alcohol, petroleum naphtha, cetyl pyridinium bromide, and (2) cellulose nitrate, castor oil, high solvency petroleum naphtha, butyl acetate, alcohol, methyl ethyl ketone, butyl alcohol, petroleum naphtha, cetyl pyridinium bromide.  Specifications 359,249 and 543,913 are referred to.
Patent GB-284243-A (GB)
Title: A device permitting to view by transparency by means of conveniently coloured screens different advertisements or the like carried on the same surface
IPC: G09F19/00
Filed: 1928-01-24
Abstract: 284,243. Boudkowsky, (nÚe de Kibaltchitch), N. Jan. 25, 1927, [Convention date]. Illumination, changing advertisements by controlling.-Pictures &c. in complementary colours or a partition E are viewed in succession through the correspondingly coloured windows A - - D of a. box-like casing. The casing may be actuated or moved in any way, and the effects may be varied bv the addition of a suitable source of light. Specifications 168,880 and 196,899, [both in Class 132 (i). Amusement and exercising apparatus &c.], are referred tu.
Patent GB-538619-A (GB)
Title: Improvements in or relating to the manufacture of polyamines
IPC: C08G69/20
Filed: 1940-02-07
Abstract: 538,619. Polyamides. DU PONT DE NEMOURS & CO., E. I. Feb. 7, 1940, No. 2370. Convention date, Feb. 7, 1939. [Class 2 (iii)] Polyamides are prepared by heating in an inert atmosphere or an evacuated system a cyclic amide containing more than six annular atoms with a small proportion of an alkali, or alkali earth metal not greater than 1/50 mol. per mol. of cyclic amide. In , examples, ecaprolactam is heated in a sealed, evacuated or nitrogen-filled tube in the presence of sodium, lithium or calcium, the lactam derived from p-methyl cyclohexanone oxime or from cyclo-octanone oxime is heated with sodium, or e -caprolactam is heated with sodium in the presence of acetamide, hexamethylene azelate, 3-methylcyclohexanone isoxime, or #-hydroxytetradecanoic lactone. Heating is effected in two temperature stages and may be continued to produce fibre-forming polyamides. Viscosity stabilizers, e.g. primary or di-primary amines, diamides and alkali salts such as sodium acetate, may be added. Specification 461,236 is referred to.
Patent GB-475386-A (GB)
Title: Manufacture of new condensation products of the anthraquinone series
IPC: C09B1/34
Filed: 1937-01-27
Abstract: Dyestuffs of the anthraquinone series, of the general formula <FORM:0475386/IV/1> where A is a substituted or unsubstituted benzene radicle, D is a hydroxyalkyl radicle and X is hydrogen or a sulphonic acid group, are manufactured by condensing anthraquinone compounds of the general formula <FORM:0475386/IV/2> where Y is a halogen or a sulphonic acid group, with mono-(hydroxyalkyl)-amides of benzene or substituted benzene aminosulphonic acids, and, when Y is halogen, treating the products with sulphites, preferably under pressure.  The products dye animal fibres, especially wool.  In examples: (1) the sodium salt of 1-amino-4-bromoanthraquinone-2-sulphonic acid is condensed with m - aminobenzenesulphoethanolamide in aqueous solution in the presence of sodium bicarbonate and copper powder; the product dyes wool reddish blue shades; the m - aminobenzenesulphoethanolamide may be replaced by the corresponding p- and o-compounds, whilst the phenyl radicle may be replaced by a substituted phenyl radicle; (2) 1 - methyl - 4 - aminobenzene - 2 - sulphoethanolamide is employed in the process of (1); the product dyes wool blue shades; the corresponding propanol, butanol and propandiol compounds may be similarly employed; (3) 1 - amino - 2 : 4 - dibromoanthraquinone is heated with 1 - methyl - 4 - aminobenzene - 2 - sulphoethanolamide in a solvent such as nitrobenzene or dimethylaniline in the presence of potassium acetate and copper acetate, and the product is heated with alkali sulphite, preferably in the presence of phenol; (4) the sodium salt of 1-amino-4-bromoanthraquinone-2 : 5-disulphonic acid is condensed with 1-methyl-4-aminobenzene-2-sulphoethanolamide by the process of (1); the product dyes wool blue shades.  The Specification as open to inspection under Sect. 91 comprises the use in the above process of the mono-(hydroxyalkyl)-amides of aromatic aminosulphonic acids in general, those of the naphthalene and tetrahydronaphthalene series being additionally specified, and of aromatic aminocarboxylic acids.  Additional examples describe the condensation of the sodium salt of 1 - amino - 4 - bromoanthraquinone - 2 - sulphonic acid with p-aminobenzoic acid ethanolamide and with 1-aminonaphthalene-6-sulphoethanolamide or other hydroxyalkylamides of aminonaphthalenesulphonic or -carboxylic acids, in which the naphthalene radicle may be partially hydrogenated.  This subject-matter does not appear in the Specification as accepted.
Patent GB-284605-A (GB)
IPC: G01G23/08
Filed: 1928-01-26
Abstract: 284,605. Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkels Patent en van Andere Werktuigen, (Assignees of Berkel, C. F. M. van, and Duyn, A. van.). Jan. 31, 1927, [Convention date]. Fluid-friction vibrationdampers applied to weighing machines consist of inner and outer cylinders both closed by the same piston and so associated that the piston acts against liquid under pressure on both its up and down strokes. The piston b is stepped to engage both the outer cylinder a and the inner cylinder a<1>. The lower chamber so formed is connected bv a pipe l and port m with the inner cylinder a<1> which communicates with an upper reservoir h open to the atmosphere. The annular chamber f also communicates through the port k with the inner cylinder a'. The areas of the ports m and are controlled by a sleeve valve n adjustable by a lever p and screw s, the port m regulating the downward movement and the port k the upward movement of the piston. The sleeve i on the cover h<1> prevents splashing and the large capacity of the upper reservoir h avoids spilling when the apparatus is laid on its side as during transport. The passages between the different chambers might be dispensed with and clearance left between the piston and the cylinder walls.
Patent GB-1261172-A (GB)
Title: Radial-piston hydraulic motor
Inventor: DOKUKIN ALEXANDR VIKTOROVICH
IPC: F03C1/30
Filed: 1970-01-20
Abstract: 1,261,172. Reciprocating motors. INSTITUT GORNOGO DELA IMENI A.A. SKOCHINSKOGO. Jan.20, 1970, No.2594/70. Heading F1A. In a multi-cylinder, inwardly-acting radial piston motor in which the pistons act through rollers on a cam surface, the cam surface is formed by two or more arcuately backed cam track portions fitted tightly together, the adjoining surfaces being inclined to the longitudinal axis of the motor. As described, the motor comprises two banks of pistons each piston having a roller running on a cam track common to both piston banks.
Patent GB-724666-A (GB)
Title: Improvements in or relating to the phosphoric acid polymerization of olefins
IPC: C07C2/18
Filed: 1953-01-30
Abstract: Olefins containing from 2 to 6 carbon atoms are polymerized by contacting with a mixture of liquid phosphoric acid and a white oil at a temperature of 250 DEG  to 500 DEG  F. and at a pressure in the range from atmospheric to 1000 p.s.i.g.  The ratio of acid to white oil may vary from 10 : 1 to 1 : 10.  The feedstock may include ethylene, propylene, butylenes, pentylenes and hexylenes or diolefins such as butadiene, pentadienes and hexadienes, and mixtures containing them.  Ethylene is preferably employed in admixture with another olefin.  The olefin feed in liquid or vapour phase may contact the liquid phosphoric acid and white oil in any suitable mixing device, e.g. by bubbling through a pool of the liquid catalyst or in a conventional column using bell cap trays or other contacting means.  The white oil is added to the olefin feedstock before entering the contacting equipment.  The acid, which may be ortho or pyrophosphoric, should have a strength in the range 75 to 110 per cent H3PO4.  The polymerized product, containing mainly dimers and trimers, is distilled to provide a light polymer boiling up to 300 DEG  F. which may be used as aviation or motor fuel, and higher polymers suitable as feedstocks in alkylation processes for the production of detergents.  By controlling the amount of white oil present, it is possible to control the type of polymer produced.  An example describes polymerization of a propylene stream at 320-360 DEG F. and 300-750 p.s.i.g. using a phosphoric acid-white oil ratio of 1 : 4.3 and resulting in a product consisting largely of dimers and trimers.  A suitable white oil is obtained by repeated treatment of a raffinate resulting from phenol extraction of a lubricating oil with fuming sulphuric acid, followed by washing with an alkaline reagent and treatment with attapulgus clay.
Patent GB-1390346-A (GB)
Title: 5-aroyl-2-tetrazol-2-ylmethyl-pyrroles
IPC: A61K8/00
Filed: 1973-01-19
Abstract: 1390346 Aroyl (tetrazolylmethyl) pyrroles McNEIL LABORATORIES Inc 19 Jan 1973 [21 Jan 1972] 2756/73 Heading C2C The invention comprises compounds of the formulµ where Ar is phenyl which may be mono-, di- or tri-substituted by halogen, lower alkyl, lower alkoxy, trifluoromethyl or methylthio, R is H or lower alkyl, R 1  is H, lower alkyl or benzyl and R 2  is H or lower alkyl provided that, when R 1  is H, then R is H, and the lower alkyl and lower alkoxy groups contain 1-6 carbon atoms. The compound may be prepared by heating a compound of the formula with sodium azide under mildly acidic conditions in a dipolar aprotic solvent. The compound may be used as anti-inflammatory agents.
Patent GB-399372-A (GB)
Title: Implement for electric stunning of cattle to be slaughtered
IPC: A22B3/06
Filed: 1933-01-28
Abstract: 399,372. Slaughtering cattle. MUUSFELDT, O. J. and LEVYSOHN, R. A. M., (trading as KEMP & LAURITZEN), 7, Vestervoldgade, Copenhagen. Jan. 28, 1933, No. 2758. Convention date, Feb. 29, 1932. [Class 5 (i).] A device for electrically stunning animals prior to slaughtering comprises pelottes 3 carrying salt-water pads 4 and mounted on resilient arms 5 fixed on a frame member 6 which is hollow to take the connections of the current conductors 8, the circuit being controlled by a switch 9 mounted on the member 6. The device is provided with a handle 11 of bell-crank shape which is mounted by a pivot 15 on the frame member 6 and is connected through a bolt 16 and links 17, 18, to the resilient pelotte arms. On placing the device on the animal's head and pressing down the handle from the dotted line to the full line position, shown in Fig. 2, the pelottes are moved inwards to engage the animal's head and are maintained clamped on the head by the toggle effect of the linkage ; the switch 9 is simultaneously closed by the short arm 12 of the handle engaging a button 10. A spring lock 19 engaging a hook 20 holds the device rigid when in open position. Other means such as a cable wound up by a rotary handle may be used to cause the pelotte arms to approach each other or any auxiliary power, such as electric current, compressed air, vacuum, or hydraulic power may be used for this purpose.