baber/WOPTO huggingface dataset:
Patent GB-126754-A (GB)
Title: Improvements in or relating to the Production of Dyes.
Inventor: HART ALICE MARION
IPC: C09B7/02
Filed: 1918-02-14
Abstract: 126,754. Hart, A. M. Feb. 14, 1918. Indigo preparations.-Indigo is sulphonated by means of concentrated sulphuric acid, the solution is mixed with alum, and the mass fused. The product, cooled and ground to powder, is soluble in hot water and dyes wool blue shades in acid baths. Cream of tartar may be added in addition to alum; the indigo sulphonic acid solution may be neutralized with soda and crystallized before fusing with alum. Products giving navy-blue shades may be obtained by mixing the above-described preparations with a soluble or sulphonated cudbear product. Dyes from natural products.-The soluble cudbear products referred to above may be made (1) by boiling cudbear with methylated spirit, filtering, and evaporating the solution to dryness; (2) extracting cudbear with strong ammonia, filtering, ading soda, neutralizing with sulphuric acid, and crystallizing. Sulphonated cudbear is obtained by treating cudbear with dilute sulphuric acid and neutralizing and crystallizing the product.
Patent GB-624129-A (GB)
Title: Improvements in or relating to electrolytic cells having a movable mercury cathode
IPC: C25B9/14
Filed: 1947-01-28
Abstract: <PICT:0624129/III/1> Apparatus for making hydrates or sulphides of alkali-metals comprises an electrolytic cell A provided with a mercury cathode and an alkali-metal chloride, and a vessel B to which the amalgam formed during electrolysis is discharged, the vessel, in the case where hydrate is to be made, containing pieces of graphite or other material having a similar catalytic action and being fed continuously with water.  The hydrate is removed through outlet 5. For the manufacture of sulphide, an alkali-metal polysulphide is supplied to the vessel B instead of water, and the packing is of non-catalytic material such as glass.
Patent GB-818553-A (GB)
Title: Improvements relating to pump mechanisms for charging filter presses
Inventor: BOWERS SAMUEL FRANK
IPC: F04B9/117
Filed: 1957-01-28
Abstract: 818,553. Reciprocating pumps. PROGRESS ENGINEERS Ltd. Jan 27., 1958 [Jan. 28, 1957], No. 2911/57 Class 102(1). Two hydraulically actuated pumps A and B deliver to a common outlet. The pumps are actuated by hydraulic fluid fed by lines 27, 28, 30, 31 to rams such that the pump pistons move in opposite sense, the valve 26 controlling of the fluid being actuated in accordance with the position of the piston of pump A, as described in Specification 677,136. As the outlet pressure increases the time taken for the working stroke of the pump pistons increases while the time for the return stroke remains substantially constant hence the pump B does not complete a full working stroke after a predetermined outlet pressure is reached. Buffers 35 are provided on pump B to prevent damage of the pump. Automatic or manual control may be provided to render the pump B inoperative at a predetermined outlet pressure.
Patent GB-846516-A (GB)
Title: Production of phenols
Inventor: COOKE MAURICE DUDLEY
IPC: C10L5/10
Filed: 1958-01-29
Abstract: A process for the production of phenols comprises continuously contacting a hydroperoxide of the general formula:-  R1 R2 C(OOH) Ar or R1 R2 C(OOH) Ar C(OOH) R3R4. wherein R1, R2, R3 and R4 are alkyl groups and Ar is an aryl or an aralkyl group in the former formula and an arylene or alkarylene group in the latter formula, in the liquid phase with an acid catalyst under substantially anhydrous conditions at a temperature between 70 and 85 DEG C. under reduced pressure sufficient to maintain the reaction mixture in a state of reflux, removing the heat of reaction as the latent heat of boiling of the reaction mixture and withdrawing part of the reaction mixture as reaction product.  Ketones are formed as byproducts.  The process may be carried out in the absence of added ketone solvents or in the presence of an amount of added ketone solvent less than that required to maintain the reaction mixture in a state of reflux at the reaction temperature of atmospheric pressure.  Starting materials mentioned include a ,a -dimethyl-p-methyl benzyl-, a ,a - dimethyl benzyl-,a , a -dimethyl -pisopropyl benzyl-, a ,a -ethyl methyl benzyl, a ,a - dimethyl -pethyl benzyl and a ,a - dimethyl naphthyl methyl hydroperoxide, dihydroperoxides such as m-and p-diiso-propylbenzene and p-ethyl isopropyl benzene dihydroperoxides and hydroperoxides derived from naphthalene, anthracene and phenanthrene substituted with alkyl groups from methyl to butyl including the various isomeric forms both in the nuclei and on the carbon atoms to which the hydroperoxide groups are attached.  The hydroperoxide may be in the form of a crude oxidation reaction mixture e.g. obtained by oxidation with oxygen or a pure hydroperoxide.  The hydroperoxide may be obtained by fractionation of the oxidation reaction products at reduced pressures.  In the production of phenol acetone may be added. Cumene hydroperoxide may be employed mixed with an inert solvent, e.g. cumene.  Examples are furnished in which phenol and acetone are obtained by refluxing cumene hydroperoxide with a mixture of cumene, phenol, acetone and sulphuric acid at reduced pressures and fractionating the products.  For comparison a similar process is carried out at normal pressure.  The product is treated with aqueous sodium carbonate or caustic soda before fractionating to obtain the phenol and acetone.
Patent GB-556077-A (GB)
Title: Improvements in boot heels and tips
IPC: A43C13/02
Filed: 1942-03-06
Abstract: 556,077. Boot &c. protectors. HEWSON, B. T., and LOCAN, A. March 6, 1942, No. 2958. [Class 17 (iii)] A heel tip made of rubber is flat on its tread surface a, and concave on its under surface to fit the curved part of a worn heel. The tip may be reinforced with one or more layers of steel or other metal wool, woven wire &c. Reference has been directed by the Comptroller to Specifications 10773/15 and 202,868, [both in Class 17 (iii)].
Patent GB-372343-A (GB)
Title: Improvements in or relating to burners for gaseous fuels
IPC: F23D14/48
Filed: 1931-01-29
Abstract: 372,343. Atmospheric gas burners. MIRUS SOC. ANON., 94, Rue St-Lazare, Paris.-(Assignees of Dietsh, E. E. R. ; 105, Grande Rue, Arpajon, Seine-et-Oise, France.) Jan. 29, 1931, No. 2966. Convention date, Jan. 30, 1930. [Class 75 (i).] The burner is provided with an annular conical outlet 14 formed by the body 10 and a cap 12 with an axial secondary air passage 11 and a gas and air inlet regulator comprising a sleeve 4 having a flange 7 and slidable on the needle-pointed ejector 1 so that the gas supply increases as the air supply decreases and vice versa. The sleeve 4 is operated by means of a rod 9 and is guided by a rod 6 extending through a helical slot 5 therein, a spring 6<1> being provided on the rod to retain the sleeve in an adjusted position. Back-firing is prevented by means of a wire gauge 12<1> secured in a recess in the cap 12. Reference has been directed by the Comptroller to Specifications 14285/98, 16162/01, 29469/04, [all in Class 75, Lamps &c.], and 169,567, [Class 75 (i), Burners &c.].
Patent GB-447930-A (GB)
Title: Process for the conversion of solid carbonaceous materials into liquid hydrocarbons by hydrogenation under pressure and in the presence of catalysts
IPC: C10G1/08
Filed: 1935-01-29
Abstract: Solid carbonaceous materials are destructively hydrogenated in presence of a catalyst comprising a compound of sodium or potassium with a metal radicle, e.g. sodium aluminate.  The destructive hydrogenation is carried out at temperatures of about 420 DEG  C., and under 100 kgs. pressure or less.  Coal is crushed and made into a paste with anthracenic oil boiling above 250 DEG  C. Sodium aluminate is added and the paste is heated in presence of hydrogen to 400 DEG C., in a pipe still or digester fitted with an agitator, a pressure of 100 kgs. being maintained.  1 cubic metre or less of hydrogen is used per kilogram of paste treated.
Patent GB-847620-A (GB)
Title: Improvements relating to radiation monitors
Inventor: JERVIS MAX WILLIAM
IPC: G01T1/18
Filed: 1957-01-28
Abstract: 847,620. Electric tests. A.E.I-J. THOMPSON NUCLEAR ENERGY CO., Ltd. Jan. 23, 1958 [Jan. 28, 1957], No. 2991/57. Class 37. A device for monitoring nuclear . radiation consisting of an imization chamber 1, amplifier 3 and inductor 4 is tested by superimposing on the normal D.C. polarizing voltage supplied by battery 2 a further D.C. pulse by lining switch 10. This pulse should produce capacitive charging current in the chamber which will be indicated at 4. Switch 10 can be operated automatically or used as a periodic normal check. A suitable circuit may operate an alarm if the appropriate signal does not arrive at the amplifier output in response to the voltage being inserted in series with the polarising voltage.
Patent GB-464674-A (GB)
Title: Improvements in hand-operated beet-topping devices
IPC: A01D11/02
Filed: 1937-02-02
Abstract: 464,674. Topping beet; scoops. LIUHTO, M. Feb. 2, 1937, No. 3041. [Classes 6 (ii) and 6 (iii)] A hand-operated beet-topping device comprises a scoop-like implement fitted with an operating handle and having a forked front end, which terminates in a preferably V- shaped cutter and which is furnished with runners. The forked front portion is composed of plates 2, 3, preferably of galvanized iron, to which the steel cutter 1 is riveted. The diverging edges of the front portion of the plates 2, 3, are curled upwards and inwards and the edges at the rear portions are turned downwards and formed into runners 5, 6. The scoop is formed of wires 7 .... 14 secured to the handle 23, and a bracket 28 thereon and also to the plates 2, 3, and the cutter 1. The runners 5, 6, may be separate from the plates 2, 3, and mounted adjustably thereon.
Patent GB-762069-A (GB)
Title: Improvements in or relating to clamping devices for cable having a core and one or more outer stranded layers
IPC: H01R4/62
Filed: 1950-12-13
Abstract: 762,069. Cable attachments. STREADER, W. J. Dec. 13, 1951 [Dec. 13, 1950], No. 30471/50. Class 109. [Also in Group XXXVI] A cable clamp comprises an outer member 1 having a forked end 5 and a shank 2 with a bore which is tapered over a part of its length at 12, and an inner member 9 with a forked end 13, a shank 10 fitting in the parallel part 11 of the bore in member 1, and a bore having a tapered part 15 and a shoulder 14. In use, the outer cable strands are cut back and the member 1 slipped on, and the member 9 is applied so that shoulder 14 abuts the strand ends 18. A tapered sleeve 16 is then forced over the bared end, a split sleeve 8 is applied to the unbared end, and member 1 forced back over the whole until bolt holes 6, 20 in the members 1, 9 align. A jumper cable coupling 23, Fig. 3, has a bolt hole 26 and a recess 28 co-operating, with freedom to swivel, with a bolt hole 21 and a raised part 22 of an integral lateral lug 7 on member 1. The Provisional. Specification describes also a form in which the core strands are clamped between an inner plug and the bore in the inner member.
Patent GB-1027708-A (GB)
Title: Improvements in or relating to spoons
IPC: A47G21/02
Filed: 1965-01-23
Abstract: 1,027,708. Spoons. S. I. EALES. Jan 23, 1965, No. 3050/65. Heading A4A. In a grapefruit spoon V-shaped teeth, for extraction of the pulp, are provided at the tip of the bowl, the sides of the bowl being plain for safe contact with the mouth, and the teeth having a pitch of at least 1/16 inch and an included angle of at least 60 degrees. The teeth are formed in a blanking out process and rough or sharp edges are removed from the sides of the teeth during polishing. Slight rounding of the points of the teeth may occur during polishing.
Patent GB-269826-A (GB)
Title: Improvements in means for extracting dust from and settling fur, hair, or the like
IPC: A47L7/00
Filed: 1926-02-17
Abstract: 269,826. Howarth, S. W. Feb. 17, 1926. Openers, cleaners, etc. -In a machine for extracting dust from and settling fur, hair, &c. the material is fed by an apron and feed rollers to a picker 37 at one end of a chamber 36. The outlet of the chamber is closed by a rotary perforated drum 40 divided into separate compartments by radial plates 41. One end of the drum is closed and the other is open, the side of the chamber adjacent to it being provided with a port 48 connected to a suction pipe 49. The fur &c. opened by thepicker settles on those sections of the drum in communication with the port 48 and is carried round outside the chamber. Dust, dirt, &c. is carried away by the pipe 49. The escape of air round the drum is prevented by a roller 43, a lath 44, and leather flaps 45, 46. Curved beads 47 project over the ends of the drum. The bottom of the chamber preferably slopes upwards and is curved round the picker.
Patent GB-633234-A (GB)
Title: Improvements in resiliently mounted racks and trucks incorporating such racks
IPC: B62B3/00
Filed: 1948-02-03
Abstract: 633,234. Stands. GOUGH, T. Feb. 3, 1948, No. 3140. [Classes 52 (i) and 52 (iii)] [Also in Group XXXII] A resiliently mounted rack for pottery &c. has a vertical rectangular frame, supporting for guided vertical displacement a second such frame fitted with shelf bearers, and suspended or supported from the first frame by means of springs. As shown the frame 3 is suspended from the frame 1 on a compression spring 9, within a tube 8 fastened to top member 2, and has cross bearers 7 to receive trays &c. The fixed frame may be provided with wheels 14, castors 15 and handles 16 to form a trolley.
Patent GB-419495-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/16
Filed: 1934-01-31
Abstract: 419,495. Safety razors. DARWINS, Ltd., and BROWN, W., Fitzwilliam Works, Templeborough, Sheffield. Jan. 31, 1934, No. 3210. [Class 30.] A hollow-ground or other thick-backed blade 15 has an adjustable stop, such as a set-screw 20, Fig. 1, or a cam 30, Fig. 4, which bears against a clamping-base 12, to determine the shaving-clearance between the blade and a guard 13 carried by the base 12. The clamping-base is urged upwards, to clamp the blade against an overlying lug 14 on a head 10, either lightly by pressure of a spring 18, or positively by screwing the end 19 of the handle, through the head 10, against a pin 17 screwed to the base 12. The clamping-base is guided by a cup 16 in a recess in the head 10 and carries registering-lugs engaging the rear edge of the blade. In the blade shown in Fig. 4, an eccentric or cam 30 is rotatable in a slot in the blade 15 and is turned by a rearwardlyprojecting spindle 31. A screwdriver 26 is carried in the handle 11 for turning the screw 20 or spindle 31, and the blade has graduated marks co-operating with the slotted head of the screw or spindle. The handle can be screwed directly into the blade at either end 22, to provide an alternative shaving and stropping position and can be screwed into the back 23 of the head 10, for storage. The Provisional Specification states also that more than one stop may be provided, and that the stop may bear on the securing-lug.
Patent GB-1246017-A (GB)
Title: Improvements in or relating to vulcanizable rubber latex compositions
Inventor: MURSALO TVRTKO ANDREW
IPC: C08K5/17
Filed: 1969-01-20
Abstract: 1,246,017. Vulcanizable rubber latex compositions. NATURAL RUBBER PRODUCERS RESEARCH ASSOCIATION. 12 Jan., 1970 [20 Jan., 1969], No. 3239/69. Heading C3E. A vulcanizable mixture comprising sulphur, zinc oxide, a dithiocarbamate and a watersoluble primary, secondary or tertiary amine is produced by mixing the amine with an aqueous dispersion of zinc oxide and/or sulphur, simultaneously with or prior to admixture of the amine with the dithiocarbamate and prior to admixture of the amine with a rubber latex. Specified amines are ethylamine, diethylamine, triethanolamine, diethanolamine, triethylene tetramine and ethanolamine.
Patent GB-999045-A (GB)
Title: Improvements in or relating to a ground guidance path for a vehicle
IPC: G05D1/00
Filed: 1961-07-31
Abstract: 999,045. Leader gear systems. E. W. BLISS CO. July 31, 1961 [Aug. 3, 1960], No. 3271/65. Divided out of 999,044. Drawings to Specification. Heading H4U. The whole of the subject-matter is disclosed in Specification 999,044 but the claims relate to the selective connection of transverse links to alter the effective length of the inductive loop.
Patent GB-979605-A (GB)
Title: An improved process and device for refining cast-iron for steel production
IPC: C21C5/32
Filed: 1963-01-25
Abstract: In a process for refining iron the solid part of the charge, e.g. scrap, ore and limestone is introduced into a stationary rotatable device, which is then set in rotation prior to the addition of liquid charge, the speed being such that the molten charge has no contact with the central region of the bottom of the vessel, which may be used for discharging the product. <PICT:0979605/C6-C7/1> Initially the solid charge, and if necessary also the liquid, may be heated by the combustion of a suitable fuel, preferably with oxygen, the fuel supply then being cut off and the metal refined by the action of oxidizing gas.  By reducing the rotational speed, slag and then metal may be discharged from the vessel through the basal orifice. Samples for analysis may also be extracted in this way.  A suitable form of apparatus is shown in Fig. 1 and includes vessel 5 which is caused to rotate about a vertical axis by rollers 2 and 4 and which is equipped with fuel and oxygen nozzles 6 and 7.
Patent GB-574973-A (GB)
Title: Improvements in and relating to the production of aromatic hydrocarbons
Filed: 1941-03-11
Abstract: The process of the parent Specification in which a substantially aromatic product is obtained by subjecting a natural mineral hydrocarbon oil in the form of its vapour to the action of a metallic hydrogenation or dehydrogenation catalyst at a temperature between 500 DEG -800 DEG  C. at about atmospheric pressure and at a space velocity of 0.1 to 0.5 litres of oil per litre catalyst volume per hour, is modified in that the starting product is a hydrocarbon oil boiling within the range 150-400 DEG  C. and resulting from certain synthetic processes, namely the Fischer-Tropsch process or the hydrogenation of coal or of high boiling mineral oil or of tars. Metallic catalysts mentioned include iron, copper, chromium, nickel, and cobalt.  In an example a Fischer-Tropsch oil is passed over an activated copper catalyst at 680 DEG  C.  The product was fully aromatic.  Specifications 312,916, [Class 2 (iii)], and 480,442 are referred to.
Patent GB-100177-A (GB)
Title: Improvements in Apparatus for Throwing Bombs or the like.
IPC: F41B3/02
Filed: 1916-03-07
Abstract: 100,177. Soc. Anon. de Commentry- Fourchambault et Decazeville. March 13, 1915, [Convention dete]. Void [Published under Sect. 91 of the Act]. Ordnance, mechanical.-Relates to bomb-throwers of the catapult type, and consists in employing a pair of torsion springs formed of straight, bent, or helical rods which are twisted through about 90 degrees to project the bomb. Fig. 2 shows a plan of one arrangement, in which the torsion springs consist of rods C extending outwardly from a framework b. The rods are bent upon themselves above and below the framework b, as shown in side elevation in Fig. 1, and terminate in members a. the free ends of which are connected by a cord e. The bomb g is carried in a cup h attached to the cord, and pulled rearwards by winding a cord i on a winch f, the drum v of which is rotated through the medium of a pinion by handles l, k. The bomb is liberated by releasing the winch. In a modification, Fig. 5, the torsion spring w is of helical form. In a further modification, the helical spring shown in Fig. 5 is replaced by a straight rod of equivalent length. The arms a in each construction may be tapered so as to increase the spring effect when flexed.
Patent GB-193830-A (GB)
Title: Improvements in tyre valves and methods of making the same
IPC: F16K15/20
Filed: 1923-02-05
Abstract: 193,830. Schrader's, Son, Inc., A., (Assignees of Schweinert, M. C.). Feb. 27, 1922, [Convention date]. Valves.-Relates to a method of making a tyrevalve casing in which the partly finished casing is formed from a metal blank by an extrusion process arranged to leave a bore of different diameters at the end of the extrusion stage. The brass blank J, which may be solid, partly perforated, or tubular, as shown, is preferably heated and then placed on a shoulder N in the recess L of a die K. The pressing member P is then advanced to force the metal into the bore M of the die which has flats X to form the exterior flats on the casing. The initial movement of the member P produces a solid end S, but as a former Q having flats Y is carried by the pressing member into the die-hole, the extruded metal assumes a tubular form. The extrusion process is stopped while there is still metal in the recess L so as to leave a foot T on the casing. In the form shown, the casing has a large bore R, but by varying the dimensions of the former a small bore may be formed or by having a former of two diameters a casing may be formed having part of the bore of reduced diameter. The casing may be formed with a bore extending right to the end. To thicken the wall of the casing near the foot the member P is withdrawn and a second pressing member P<1> having a smaller former Q<2> inserted and the extrusion process continued. The foot is then grooved and the parts D, E, F, G, H, I and the nipple C formed by a cutting operation. Before inserting the member P<1>, a punch may be inserted to square up the end of the bore R as shown at H, Fig. 1, and the end swaged down to form the nipple. In an alternative method of thickening the foot, the former Q is made separate from the pressing member P and is withdrawn through it near the end of the extrusion process. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the bore is of a single diameter at the end of the extrusion stage and also a process in which the groove above the foot is formed by rolling or pressing. This subject-matter does not appear in the Specification as accepted.
Patent GB-1414377-A (GB)
Title: Power-operated tool
IPC: B25D16/00
Filed: 1973-01-23
Abstract: 1414377 Percussive drills BLACK & DECKER MFG CO 23 Jan 1973 3432/73 Heading B4C [Also in Division B3] A percussive drill comprises an adjusting collar 45 which can be screwed inwards to the position shown to permit, for example, ratchet teeth 35 on a gear-wheel 33 to co-operate with ratchet teeth 37 on the housing when the shaft 17 is moved axially against the action of a spring 42; when rotary motion only is required the collar is screwed out to its second position to prevent engagement of the teeth. The collar has a knurled finage 63 and an end stop 69 and is spaced from the shaft by bearings 47, 49 having a lubricant reservoir 81 therebetween A nylon pellet 56 in the housing serves to frictionally retain the collar in its inward position during the hammer action. When the bit in the chuck 19 is pressed against a work surface, the shaft 17 is moved axially until stopped by the engagement of a washer 53 with the collar.