baber/WOPTO huggingface dataset:
Patent GB-830237-A (GB)
Title: Improved pelleting process
Inventor: GLOVER HARRY CARDWELL
IPC: B01J2/28
Filed: 1957-03-13
Abstract: Chemical substances are manufactured in the form of pellets or granules by mixing the substances with a binding agent and then shaping the mixture, the binding agent being a polymer of an ester of acrylic or methacrylic acid such as polyethyl acrylate, polymethyl, polybutyl or poly-b -ethoxyethyl methacrylate or a copolymer of ethyl acrylate with methyl or butyl methacrylate. The process is particularly applicable to the treatment of substances intended for use in the compounding of rubber compositions such as 2-mercaptobenzthiazole, dibenzthiazyl disulphide, N-cyclohexyl benzthiazyl-2-sulphenamide, N-tertiaryoctyl benzthiazyl-2-sulphenamide, tetramethylthiuram disulphide, zinc diethyldithiocarbamate, diphenylguanidine, and di-o-tolyl-guanidine. Admixture is preferably effected in an aqueous medium in the presence of a surface-active agent such as cetyl pyridinium bromide, sodium oleyl sulphate, the sodium salt of an isopropylated naphthalene sulphonic acid or turkey red oil.
Patent GB-165192-A (GB)
Title: Improvements in means for use in poaching eggs
IPC: A47J29/06
Filed: 1920-03-19
Abstract: 165,192. Musgrave, E. S. March 19, 1920. Plates.-In an eggpoaching appliance wherein a number of bottomless receptacles, contained in a frame or the like, are supported by a base plate a which retains the eggs in the receptacles, the base plate is formed with a number of hollows d and the bottomles receptacles register with, and form upstanding walls around the hollows. The eggs, after being cooked, are served on the plate a which may be constructed of earthenware, glass, enamelled or plated metal and is supported by knobs i. Locking means are provided on the plate a to ensure registration with the bottomless receptacles.
Patent GB-1090365-A (GB)
Title: Improvements in or relating to floor cleaning equipment
IPC: A47L11/12
Filed: 1966-02-24
Abstract: 1,090,365. Floor cleaning machines. C.T. & R.E. Inc. Feb. 24, 1966 [June 17, 1965], No. 8302/66. Heading A4F. In a floor cleaning machine a motor 11 drives a spindle 15 carrying a flywheel 17 integral with an eccentric 18 which oscillates a plate 28 secured to a ring 26 frictionally engaged by a ring 32 on a cleaning element constituted by a sponge 34 fixed to a backing plate 33. The plate 28 is attached to the cleaner housing 12 by four springs 35 which hold it against rotation whilst permitting it to oscillate. A counterweight 19 is provided on the flywheel 17 to compensate for the weight of the eccentric 18 and unbalance caused by the eccentric motion of the cleaning element.
Patent GB-1255942-A (GB)
Title: Improvements in or relating to the production of porcelain articles
Inventor: PENDRY NORMAN ROY
IPC: C04B41/50
Filed: 1968-02-20
Abstract: 1,255,942. Porcelain. NATIONAL RESEARCH DEVELOPMENT CORP. 19 May, 1969 [20 Feb., 1968], No. 8320/68. Heading CIJ.  Porcelainarticles are toughened by immersion for 5 to 200 minutes in a bath of molten halide of K, Pb or Cs. In examples, molten baths of KBr, RbCl, GsBr and a mixture of KBr and K 2 SO 4  are used. As a comparison porcelain shapes are treated by immersion in melts of (a) NaNO 3  containing 20 wt. per cent NaBF 4  and 1% 4g, (b) KNO 3  containing 10 wt. per cent KBF 4  and 1% Ag, (c) NaI. The articles can be preheated to the temperature of the bath, e.g. 700-900‹ C. before immersion. Porcelain shapes are made by settling an aqueous slurry of porcelain powder in a mould under vibration, air drying, firing at 875-880‹C. and annealing at 400‹ C. An industrial porcelain is formed from 27% feldspar, 27À5% quartz and 45% kaolin and a dental porcelain is formed from 70-90% feldspar,1-18% quartz and 1-10% kaolin. A porcelain article analyses, before treatment, 69À36 wt. per cent SiO 2 , 8À11% Al 2 O 3 , 7À35% B 2 O 3 , 8À53% K 2 O and 4À81% Na 2 O.
Patent GB-1046901-A (GB)
Title: Improvements relating to suction cleaners
Inventor: MORRIS RICHARD CHARLES
IPC: A47L9/02
Filed: 1963-03-01
Abstract: 1,046,901. Suction cleaner nozzles. ASSOCIATED ELECTRICAL INDUSTRIES ' Ltd. Feb. 28, 1964 [March 1, 1963], No. 8363/63. Heading A4F. A wheeled suction cleaner nozzle assembly 12 has strip brushes 6, 7, pivotally mounted behind and in front of the nozzle 1, such that the friction forces on the brushes due to the movement in either direction of the nozzle assembly over the surface to be cleaned tend to lift away the then leading brush and urge the then following brush towards the surface. As the nozzle assembly is moved in the direction D the frictional force F1 tends to pivot brush 6 about pivot 10 away from the surface 5 and the frictional force F2 to urge brush 7 about pivot 11 towards the surface 5, the direction of the forces and the pivoting movement being reversed when the direction of nozzle movement is reversed. The brushes may be adjustable in height from the surface, slightly spring loaded downwardly and have suitable limiting stops to prevent jamming. The arms 8, 9 may be resilient instead of pivoted, whilst an underplate having fairing surfaces may be provided to ease manipulation of the nozzle assembly over carpet surfaces.
Patent GB-125377-A (GB)
Title: Improvements in Garden Tractors.
Inventor: WEBB JOSEPH
IPC: A01B17/00
Filed: 1919-04-03
Abstract: 125,377. Webb, J. April 1, 1918, [Convention date]. Cultivators and harrows; ploughs; motor implements; frames and handles. - Comprises a single-wheel tractor or implement for ploughing, disking, harrowing, &c., driven by a motor which is carried by a beam 6 and which has its centre of gravity in front of and below the axle of the wheel. The cultivating-implements are fixed to the beam as shown. The motor drives the wheel through toothed gearing and a friction clutch, the latter and the carburettor being controlled by cables 33 connected to handles 34 on the beam. A governor controls an auxiliary throttle which prevents the engine racing when the clutch is disengaged. The fuel tank 41 is carried within the hollow part of the wheel.
Patent GB-935774-A (GB)
Title: Poly-ªá-olefine compositions and stabilizer combinations therefor
IPC: C08K5/46
Filed: 1961-03-08
Abstract: Wire is coated with a polymer of a C2 to C10 a -mono-olefine is stabilized with a composition of a diester of 3,31-thiodipropionic acid having the formula <FORM:0935774/III/1> wherein R is alkyl of at least 4 carbon atoms, and a phenothiazine <FORM:0935774/III/2> wherein R1 is H or C1 to C18 alkyl.  The polymer may be derived from ethylene and/or propylene, methyl butene, dimethyl butene, pentene, methyl-pentene, octene or decene. Exemplified stabiizers are dilauryl, distearyl and dioctyl thiodipropionates, and phenothiazine, N-ethyl, N-lauryl and N-stearyl phenothiazines.ALSO:A polymer of a C2 to C10 #c-mono-olefine is stabilized with a composition of a diester of 3,31-thiodipropionic acid having the formula <FORM:0935774/IV(a)/1> wherein R is alkyl of at least 4 carbon atoms, and a phenothiazine <FORM:0935774/IV(a)/2> wherein R1 is H or C1 to C18 alkyl.  The polymer may be derived from ethylene and/or propylene, methyl butene, dimethyl butene, pentene, methyl pentene, octene or decene. Exemplified stabilizers are dilauryl, distearyl and dioctyl thiodipropionates, and phenothiazine, N-ethyl, N-lauryl and N-stearyl phenothiazines.  The products find application as sheet, rods, tubes, pipes, and films and as coatings on paper, wire, metal foil, glass fibre fabrics, and synthetic or natural textiles or fabrics.
Patent GB-282254-A (GB)
Title: Two-share plough
IPC: A01B13/14
Filed: 1927-03-29
Abstract: 282,254. Metz, H. March 28, 1927. Multiple-tool implements; tools.-In a twoshare plough for deep cultivation. both shares are arranged at an angle to the line of draught and the front share works at a greater depth than the rear share, the rear share being curved in vertical section and the front share being substantially flat and vertical and cut away to form a recess through which passes the soil turned over by the share. The soil is cut in steps and that cut off by the rear share is deposited upon that cut by the front share. The shares a, b are attached to a U-shaped frame provided with wheels at the front. The front share b is cut away at b<1> as shown.
Patent GB-250569-A (GB)
Title: Improvements in or relating to apparatus for singeing threads
IPC: D02J3/16
Filed: 1926-03-30
Abstract: 250,569. Mettler, A. April 9, 1925, [Convention date]. Atmospheric gas burners; burners, applications of. - A burner for singeing threads comprises an outer tube A within which is fitted a tubular member 1 cut away at 2 to form a chamber 3 and provided with diametricallyopposed slots 5. Packing material is fitted in grooves 7. The tube A and member are slotted longitudinally as at 6, Fig. 3, to allow the introduction of the thread. Gas is supplied to the chamber 3 by a pipe 4 and burns at the slots 5. The tubular member is coned out at its ends to facilitate the escape of combustion residues. The walls 2 being thin will glow and increase the singeing action. An additional metal tube 8, Fig. 5, slotted as shown to register with the slots 5, may be inserted within the tube 1 and turned, as by a screwdriver engaging end notches 11, to adjust the slots 5.
Patent GB-827274-A (GB)
Title: Improvements in compressed air coolers for compressors
Inventor: MUNCK JOHN RUTGER
IPC: F04B39/06
Filed: 1958-03-18
Abstract: 827,274. Air cooling installations. ATLAS COPCO A. B. March 18, 1958, No. 8717/58. Class 64(3) [Also in Group XXVIII] A compressed air cooler comprises concentric inner and outer casings 23, 24 forming an annular space 30 between them which contains a coiled finned tube 31 through which circulates a cooling fluid. The inner casing 23 is welded at its lower end to a flange 28 and is provided at its upper end with an anchoring flange 25. The outer casing 24 is provided with a cap 42 forming passage means 43 for the compressed air and bolts 26 secure the inner casing to the cap thereby clamping the outer casing 24 between the flange 28 and a flange 40 of the cap thus preventing any transverse movement between the inner and outer casings. A transverse partition 25 is provided in the inner casing 23 so that compressed air entering through the passageway 43 passes through the annular space 30, where it is cooled, and flows through ports 27 at the bottom of the inner casing to the outlet formed by tube 55. Tubes 49, 50 in the inner casing having helical vanes 51 between them form a water separator for the air passing through the cooler. The inner casing 23 may be provided with an extra wall 47 forming a heat insulating space 48 which may be filled with fibreglass. In a modified form the inner casing is bell shaped at its lower end to engage the lower end of the outer casing and the upper end of the inner casing is closed, the inner casing being clamped by a single bolt from the end cap of the outer casing to the enclosed end of the inner casing. In this case the outer casing is provided with an inlet for the compressed air at its lower end which flows through the annular space to the passage formed by the end cap and then to the water separator, the whole unit being of a substantially inverted U-shape. In a further modification a bolt passes axially through the inner casing and clamps the inner casing between a transverse bar welded across the upper end of the outer casing and an arcuate transverse member provided in the lower end.
Patent GB-905796-A (GB)
Title: Universal heavy duty brake
IPC: F16D65/09
Filed: 1961-03-10
Abstract: 905,796. Drum brakes. BENDIX CORPORATION. March 10, 1961 [May 6, 1960], No. 8906/61. Class 103 (1). An internal-expanding drum brake has two shoes 16, 18 carried on a torque plate 30 by levers 36 at each end of each shoe, the levers acting to apply the shoes when rotated by an actuating device 80 and to act as anchors when their non-pivoting ends are held against rotation and providing a floating abutment surface for the shoes bearing against them. The levers 36 are pivoted at 38 to the torque plate and have shoe abutment surfaces 50 so shaped to result in the maximum shoe engagement pressure being located substantially midway between the shoe ends, the linings 24 being thickened at this point to provide even wear. Anchoring forces on the levers are taken by the pivots 38 and by projections 46 formed from the torque plate. Adjustment is provided by a screw and nut adjuster between the shoe and a lever manually-operated from outside the drum by a gear 68. In the form shown in Fig. 1, the two double-acting hydraulic actuators 80 provide on the leading shoe brake for both directions of drum rotation. In the form shown in Figs. 6, 7, the shoes 16a, 18a are applied by a pneumatic diaphragm motor actuating a wedge 124 to rock cam followers 170 to spread the levers 36a pivoting on members 160 secured to the torque plate which also provides abutments 46a. The other ends of the shoes abut, through adjusters 56a on levers 36a engaging a servo linkage 100 transmitting proportioned forces from one shoe to the other. The shoes are retracted by flat springs 102 anchored at one end to the torque plate and by springs 104 which hold adjustors 56a against the abutment surfaces 50a of the levers 36a. In another embodiment, two pneumatic actuators are employed. In simplified embodiments only one hydraulic actuator is used and the levers may abut either projections from the torque plate, or a spring- centred force transfer strut.
Patent GB-271606-A (GB)
Title: Improvements in and relating to the heat treatment of steel
IPC: C21D1/76
Filed: 1926-04-01
Abstract: 271,606. Chopra, N. D., and Bullen, F. J. April 1, 1926. Modifying physical characters of metals.-A heat-treatment of steel with the object of removing the zonic heterogeneity of the structure is effected in the presence of furnace gases whichhave been treated with both an alkaline-earth oxide, such as lime, and a carbonaceous material, such as an exhausted carburizing-mixture, that is, free carbon in association with inert incombustible matter in such a proportion that the mixture is non-carburizing as regards steel. The alkaline-earth oxide should be 10 to 50 per cent of the combined quantities of oxide and carbonaceous material, and the free carbon should be 4 to 20 per cent. The treatment may be conducted in the presence of scrap metal, swarf, &c., which is readily oxidizable, and boiler ash or producer ash may be used instead of the carburizing-mixture. The process may be carried out in electric furnaces, gas-fired muffles, or open-hearth furnaces, and may be used for the heat treatment of armour plates. Specifications- 15226/84, 12011/14, and 128,876 are referred to.
Patent GB-581427-A (GB)
Title: Improvements in the methylation of amines
Filed: 1944-05-10
Abstract: In the methylation of compounds of the type R.NH2 where R is a substituted or unsubstituted aliphatic radicle of at least nine carbon atoms by reacting said compounds simultaneously with formaldehyde and formic acid (see Group IV), foaming is prevented by carrying out the reaction in the presence of a non-aqueous inert organic liquid with which a mixture of the amine compounds with formic acid and formaldehyde is miscible.  Organic liquids specified are toluene, isopropanol, benzol, ethyl alcohol and various petroleum fractions.ALSO:A compound of the type R.NH2, wherein R is a substituted or unsubstituted aliphatic radical containing at least 9 carbon atoms, is methylated by reacting with a mixture of formaldehyde and formic acid in an inert non-aqueous organic liquid miscible with all the reagents.  In the examples: (1) mono alkyl amines derived from the fatty acids of coconut oil are mixed with an aqueous solution of formaldehyde and formic acid and toluene added. The mixture is gently heated until reaction begins.  On completion of the reaction, the mixture is washed with excess caustic soda solution, the upper layer comprising dimethylated amines separated by decantation and distilled; (2) 9-octadecenyl amine is mixed with aqueous formaldehyde, isopropanol and formic acid and treated as in the last example to give dimethyl 9-octadecenyl amine; (3) stearic acid and hydroxyethyl ethylenediamine are condensed and the product mixed with aqueous formaldehyde, toluene and formic acid.  Further treatment is as in example (1).  Other organic liquids which may be added as foam suppressors are stated to be benzene, ethyl alcohol and various petroleum fractions.  The products may be used as intermediates for the manufacture of quaternary ammonium compounds and dimethyl dodecylamine may be used as a wetting agent and in the carbonizing process for wool.  The Specification as open to inspection under Sect. 91 relates also to the methylation of aliphatic amines of the above type by means of formaldehyde and formic acid without a foam-suppressor being present.  This subject-matter does not appear in the Specification as accepted.
Patent GB-558363-A (GB)
Title: Improvements in or relating to fluid pressure apparatus
IPC: F16K11/07
Filed: 1942-06-30
Abstract: 558,363. Valves. KEELAVITE ROTARY PUMPS & MOTORS, Ltd., and JOHNSON, E. H. June 30, 1942, No. 8989. [Class 135] A control valve for fluid pressure apparatus in which the control surfaces are of cylindrical form have leakage paths over their end portions formed by one or more flats B<SP>4</SP> the width of each of which decreases progressively from the end remote from the centre of the control surface towards the centre thereof by reason of the flats being inclined to the axis of the valve. In the form shown in the Figure, the valve has two lands B<SP>1</SP> adapted to connect two series of ports A<SP>2</SP> leading to the apparatus under control either to a series of pressure inlet ports A<SP>1</SP> or to one of two series of exhaust ports A<SP>3</SP>. The valve is held against rotation by a screwed pin B<SP>3</SP> engaging a slot B<SP>2</SP>. In a modification, the valve is free to rotate and each land has but two inclined flats and cooperates with internal annular grooves joining the ports A<SP>2</SP>.
Patent GB-614552-A (GB)
Title: Improvements connected with electrodes for use with electro-therapeutic appliances
IPC: A61N1/04
Filed: 1946-03-23
Abstract: An electrotherapy electrode comprises a plate and an adjacent felt, &c. pad disposed in a linen, &c. bag.  The circuit employed consists of two such electrodes, a battery, a variable resistance and a milliammeter.  In use, the pads are moistened with suitable solutions.  Reference has been directed by the Comptroller to Specifications 159,732, [Class 81 (ii)], and 498,527.
Patent GB-725358-A (GB)
Title: Improvements in or relating to circuits for producing expansion and contraction of the circular electron orbit in a magnetic induction accelerator
IPC: H05H11/00
Filed: 1953-04-02
Abstract: 725,358. Magnetic induction accelerators. BROWN, BOVERI & CO., Ltd. April 2, 1953 [April 3, 1952], No. 9216/53. Class 39 (1). A circuit for producing orbit expansion and contraction pulses as desired in a betatron having a main excitation winding 1, and a coil 2 surrounding the accelerating flux, consists of two thyratrons 6, 7 connected in parallel with opposite polarity. Positive voltage pulses are applied alternately to the control grids of the thyratrons when the supply voltage passes through zero. A capacitor 4 is connected in series with both thyratrons, and a change-over switch 9 connects in one position e, the capacitor and the thyratrons with the coil 2, and in the other position k with the coil 2 and main excitation winding 1 arranged in series. This series arrangement is such that the voltages on the coil and main excitation winding oppose each other. The switch 9 is in position e for expansion and in position k for contraction. The expansion and contraction pulses are produced by charging the capacitor 4, the voltage source being the alternating voltage induced in the coil 2 in the case of expansion, and the difference between the supply voltage and the induced voltage in the case of contraction. The coil 2 is preferably so dimensioned that the pulses for contraction and expansion have equal amplitude, but by suitably dimensioning the coil, the pulses may be of different amplitude. The positive voltage pulses for the control grids of the thyratrons may be obtained by the conversion of the sinusoidal voltage taken from the supply system, as by a device 8. A switch 10 for reversing the phase is located between the supply system and the device 8, and is actuated simultaneously with the switch 9. Alternatively, the sinusoidal voltage may be taken from the series-connected capacitor and thyratrons. The betatron may be of the type in which the electrons are alternately accelerated in opposite directions. Specification 656,627 is referred to.
Patent GB-182199-A (GB)
Title: Improvements relating to chicken rearers
IPC: A01K31/20
Filed: 1921-03-29
Abstract: 182,199. Birtwistle, W., and Wilkinson, H. March 29, 1921. No Patent granted (Sealing fee not paid). Rearing-appliances. - In a poultry rearer having a heating system comprising a boiler C and water-circulating pipes c<3>, an overflow pipe c<4> is fitted to the lower part of the circulating- pipe, and an air-cock c<5> to the upper part. The overflow pipe discharges into the supply-tank D, from which water passes into the boiler by a bent pipe c<1>. The boiler may be fitted with straight or bent tubes c<2>. The thermostat E controls the wick or gas supply of the burner B.