baber/WOPTO huggingface dataset:
Patent GB-1430085-A (GB)
Title: Polymer blends
IPC: C08L51/04
Filed: 1972-04-07
Abstract: 1430085 Photodegradable polymer compositions J E GUILLET and H G TROTH 6 July 1973 [7 April 1972 12 Sept 1972] 16076/72 and 42328/72 Headings C3C C3B C3P and C3R Photodegradable compositions comprise (1) a major proportion by weight of a synthetic polymer which is (a) an addition polymer or copolymer of CH 2  = CXY where X is H or alkyl and Y is H, alkyl, aryl, substituted aryl, carboxylic acid, carboxylic acid alkyl ester, hydroxyl, acyloxy, cyano, alicyclic of not more than 8 carbon atoms, alkoxy, amido or alkenyl; or (b) a polyamide, polyester, polyurethane, polyether, polyepoxide, polyamide ester, polyimide, poly(amideimide), polyurea or polyamino acid condensation polymer; and (2) a minor proportion by weight of a ketone copolymer having ketone carbonyls in side chains immediately adjacent to the backbone polymeric chain in amount of 0À01 to 5 weight per cent by weight of synthetic polymer and ketone copolymer. The compositions may be prepared by dry, solution or melt blending or by two-stage polymerization; and may be made into films, bottles, cups, trays, containers, cigar holders, fibres, sheets, twines, disposable cutlery, plates and dishes. Foamed products may be obtained by incorporating blowing agents, e.g. pentane; or by whipping gas, e.g. air, into the melt. Many suitable polymers are specified and examples describe compositions comprising polystyrene and (1) styrene/phenyl vinyl ketone copolymer and (2, 3 and 5) styrene/methyl isopropenyl ketone copolymer; and polyethylene and (4 and 5) ethylene/methyl isopropenyl ketone copolymer and (4) ethylene/methyl vinyl ketone copolymer. In Example 3 the composition is blended with a foaming agent and made into foamed sheets.
Patent GB-560804-A (GB)
Title: Improvements in or relating to gas meters
IPC: G01F3/22
Filed: 1942-11-16
Abstract: 560,804. Gas meters. BENNETT, T. W. Nov. 16,1942, No. 16173. [Class 54] A gas meter comprises inlet and exhaust chambers 11, 13 containing double-flap valves rocking about pivots 31 to control the gas flow through a middle chamber 12 containing a diaphragm or piston 16 which carries tubular rods 17 passing through the top of the chamber 12 into an upper chamber 14 and connected to a bar 20 operating the flap valves and the consumption indicator. The flap valves consist of plates having cheeks 29, 30 set at an obtuse angle and carry weights 32 urging them to positions in which they cover the lower ports 22, 27 formed in the wells 23, 25 of the chamber and communicating with the space below and the space above the piston 16 respectively. In the position shown, the upper ports 21, 24 on the walls 23, 25 communicating respectively with the space above and the space below the piston 16 are closed by the' valves which are held in position by gravity catch members 41. The piston 16 consequently rises and at the end of its upward movement rockers 36 pivoted to tubular rods 37'attached to the bar 20 engage adjustable fingers 45 and lift the catch members 41 to allow the valves to swing downwards to close the lower ports 22, 27. The piston then descends and at the end of its downward movement adjustable studs 39 on the rockers 36 engage levers 40 pivoted on the walls 23, 25 and swing the valves back to their former position. The bar 20 carries a slotted member engaging a crank-pin 52 carried by a shaft 51. driving the consumption indicator. The crankshaft 51 is formed with arcuate webs 55, 56 engaging pivoted arms 59 carrying weights 62 so that a forward impulse is imparted to the crank-shaft at its dead-centre positions. The weight of the bar 20 and its associated parts is balanced by gravity loaded levers 48. The rods 17, 37 are guided by fixed rods 18, 46. Specification 525,150 is referred to.
Patent GB-451173-A (GB)
Title: Improvements in or relating to crank shafts and connecting rod mechanisms
IPC: F16C9/04
Filed: 1935-01-23
Abstract: 451,173. Connecting rods. MAINA, J., 35, Maybury Mansions, Marylebone Street, London. Jan. 23, 1935, No. 16199/36. Divided out of 450,846. [Class 122 (i)] In a, crank-shaft and connecting-rod connection wherein a pair of connecting-rods are mounted upon a common crank-pin for operating in the same plane and with the big-end of one rod fitting in the bifurcated big-end of the other rod, the crank is integral at both ends with the supporting crank arms, but is divided at an intermediate point to facilitate assembly. The crank-case 1 has circular ribs 2 in which fit rings 3 constituting the outer races of rollerbearings 4. The crank-shaft comprises sections 8, 81 ... 8<4>. Sections 8, 8<4> are half-cranks ; sections 81, 8<2>, 8<3> constitute one half each of two adjacent cranks. The sections are connected by tongues and grooves and secured by bolts. Connecting-rod 22 has a big end 15, the inner surface of which forms the outer race of a roller bearing 14, the inner race of which is constituted by a cylindrical member 13 which engages the crank-pin. The second rod has the big end 19 bifurcated to permit the passage of rod 22. The sides 18 of the outer big ends 19 form the outer races of bearings 17, the inner races of which are constituted by the composite crank which is grooved at 16. In Fig. 3, the crank-shaft is lightened by removing portions 23, 25. This permits spray-lubrication by oil ducts 24 ... 27. In a further modification, the end 19 only is a ball or roller bearing ; the end 15 engages the outer surface of the outer race.
Patent GB-1092014-A (GB)
Title: Fluorocarbon polymer coating composition
IPC: C09D127/12
Filed: 1966-04-13
Abstract: A coating composition comprises an aqueous dispersion of (a) 10 to 70% by weight based on the total weight of the dispersion of a finely divided fluorocarbon polymer and (b) 3 to 25% by weight based on the weight of the polymer, of mineral fibrils, said fibrils having an average length of from 10 millimicrons to 5000 microns and being coated with an ionizable fluoroalkyl surfactant, the weight ratio of said fluoroalkyl surfactant to said fibrils being from 0.01:1 to 1:1. Fluorocarbon polymers exemplified are polytetrafluoroethylene and a copolymer of tetrafluoroethylene and hexafluoropropylene. The mineral fibrils are preferably fibrils of potassium titanate, titanium dioxide or boehmite. The ionizable fluoroalkyl surfactant preferably has the formula (XCF2)(CF2)m-R, where m is an integer of from 1 to 10, X is hydrogen or fluorine and R is an ionizable monovalent radical, or has the formula [H(CF2)2nCH2O]xPO(OM)y where n is an integer of from 1 to 5, x is an integer of from 1 to 3, y is 3-x, and M is hydrogen, alkali metal, ammonium or substituted ammonium.  The compositions are used for coating metals (see Division B2).ALSO:Metal articles are coated by a process which comprises (a) applying a layer of a composition comprising an aqueous dispersion of (a) 10 to 70% by weight of the dispersion of a finely divided fluorocarbon polymer and (b) 3 to 25% by weight based on the weight of the polymer of mineral fibrils, said fibrils having an average length of from 10 millimicrons to 5000 microns and being coated with an ionizable fluoroalkyl surfactant, the weight ratio of said fluoroalkyl surfactant, to said fibrils being from 0.01:1 to 1:1 (see Division C3) to a metal substrate and (b) coalescing this layer to a continuous film by heating to a temperature of at least 700 DEG F. The Examples refer to coating aluminium panels which may be primed.
Patent GB-906371-A (GB)
Title: Improvements in and relating to vending machines
Inventor: BOURACIER CYRIL EUGENE
IPC: G07F11/54
Filed: 1960-05-09
Abstract: 906,371. Coin-freed vending apparatus; article dispensing machines. ICE-MATIC Ltd. Oct. 25, 1960 [May 9, 1960], No. 16286/60. Classes 27 and 116. A vending machine of the type in which articles are stacked in columns in compartments 9 on a rotary vertical drum 1 and delivered from the bottom of each column through a fixed delivery opening 5 comprises means for varying the size of the compartments and variable drive means for positioning the compartments relative to the opening. The drum is provided with upper and lower bands 10 to which are secured a plurality of brackets 7 having arms 8 receiving members 9 which have bosses 19 located in recesses 18 and either form compartments for the articles or receive magazines stacked with the articles. The brackets, which hook over rims 13 and are secured by bolts 12 engaging numbered holes 11, are interchangeable with others having arms at different angles to enable 5, 6, 8 or 10 compartments or magazines to be carried by the drum. The drum is rotated step-by-step by ratchet-wheels 3, 4 driven by a pawl connected to an arm 21 joined by a link 22 to an arm 23 oscillated about a pivot 24 by a crank 27. In order to vary the drive according to the number of compartments on the drum, the crank 27 may be adjustable, or changed for another of different radius, or the ratchet-wheels may be changed. The size of the delivery opening 5 may be adjusted to the size of the articles to be delivered by a frame inserted into the opening. Specifications 687,359 and 707,405 are referred to.
Patent GB-1046994-A (GB)
Title: Synthetic fibers
IPC: C08L67/04
Filed: 1965-04-15
Abstract: A poly-(pivalolactone/a ,a  - diethylpropcolactone) (85/15 mol. per cent) copolymer is made by refluxing a ,a -diethyl propcolactone with pivalolactone in a benzene solution of the tetrabutylammonium salt of hexyl dimethylacetic acid, and precipitating the polymer in alcohol. A poly-(pivalolactone/a ,a -diethylpropcolactone) (97.5/2.5 mol. per cent) copolymer is made by refluxing a mixture of pivalolactone and a ,a -diethylpropcolacton in a hexane solution of triethylenediamine containing titanium dioxide. A composition is disclosed of a copolyamide of hexamethylene diamide, adipic acid, sebacic acid and caprolactam (10%) and polypivalolactone (90%). The polymer is collected by filtration.  Filaments are melt-spun from the copolymers (see Division B5).
Patent GB-709167-A (GB)
Title: Process and apparatus for the specific gravity separation of mixtures of particles having different specific gravities by means of a suspension of magnetizable material
IPC: B03B5/30
Filed: 1952-06-30
Abstract: 709,167. Washing granular material. MAATSCHAPPIJ VOOR KOLENBEWERKING STAMICARBON N.V. June 30, 1952 [July 4, 1951], No. 16376/52. Class 82 (2) A process for separating materials according to specific gravity by means of a suspension of magnetizable particles in a sink-and-float or a cyclone separator (the primary separator), is of the kind in which the suspension is sprayed off and regenerated by magnetic separators or thickeners before recycling to the primary. separator. The sprayed-off suspension is classified into a fraction mainly containing the fine non-magnetic contaminating particles, and a fraction mainly containing the coarse particles. The fraction containing the fine particles is supplied to a thickener or thickeners, and the fraction containing the coarse particles is treated in a magnetic separator or separators to separate the coarse impurities from the suspension. If a cyclone classifier is used to separate the washedoff suspension into fine and coarse fractions, the feed to the classifier may be magnetized. If however other classifiers are used the feed must be in a demagnetized condition and, prior to being thickened, the separated fine fraction must be again magnetized. Part of the fine fractions discharged from the classifier may be used for spraying-off the separated particles and thus the thickener is relieved and may be reduced in size. Part of the overflow fraction from the thickener may be discharged from the circuit to remove non-magnetic fires or supplied to the magnetic separator if the input to the latter needs dilution. The primary separator 3 yields coal which is screened at 4 and shale, screened at 12. The coal and shales drain into a storage vessel 14 and adhering suspension is sprayed off on screens 6 and 15. This diluted suspension is fed to a cyclone 22. The fine fraction leaves the cyclone at the base and is split, if desired. at valve 28, part being magnetized at 29 and then entering the thickener 27, the remainder if any being used at the sprays. The coarse fraction leaves the apex of the cyclone and enters a magnetic separator 23. The non- magnetic material is discharged at 25 and the magnetic suspension is fed to the thickener. The overflow from the thickener may. be rejected, passed back to dilute the feed for the magnetic separator, or used in the sprays. Fresh magnetite enters the circuit from cyclone 36 and its associated ball mill 34. Specifications 590,481, 601,063 and 604,368 are referred to.
Patent GB-115376-A (GB)
Title: Improvements in Air or Gas Pumps.
Inventor: SCHOU PAUL
IPC: F04B39/12
Filed: 1917-05-02
Abstract: 115,376. Schou, P. May 2, 1917. Piston pumps; liquids, recovering in compressing and exhausting apparatus; valves, arrangement of; compressing and exhausting plant, general arrangement of.-A sealing and lubricating medium is supplied by a separate circulating- pump to the cylinder of a gas pump through an opening situated farther than the suction inlet from the delivery valves and always covered by the piston, so that the working parts distribute the medium and a sealing-zone is produced beyond the suction inlet. As shown, in a twocylinder air pump driven by an electromotor 9 through a shaft 13 as described in Specification 113,548, each cylinder 3 has its end 4 acted upon by a spring 18 and constitutes a delivery valve. Each suction pipe 6 leads to an annular groove 5 in the inside of the cylinder, and a further annular groove 7 is connected by a pipe 8 to the pressure side of a suitable pump 23, which is driven by an eccentric 24 on the shaft 13 and delivers the sealing and lubricating medium to the groove 7. where it is distributed on the surfaces of the piston 11 and the cylinder towards the end 4 by the suction and the movement of the piston. The air is delivered past the end 4 and through an opening 20 in a cap 19, and some of the medium passes out with the air and escapes through an opening 21 to a reservoir 22, whence it is drawn into the pump 23. A pipe may connect the opening 21 and the pump 23. In vacuum refrigerating-plant, another pump 25 may serve for circulating salt water, &c. A jacket 27 is provided.
Patent GB-725483-A (GB)
Title: Spring mattress construction
Inventor: HOOD EUGENE JOSEPH
IPC: A47C27/07
Filed: 1953-06-15
Abstract: 725,483. Mattresses. WILLIAMS, H. E. June 15, 1953, No. 16450/53. Class 52 (4). Transverse wires 14 are arranged across the top coils of an upholstery-spring assembly to support the padding and are themselves supported and held against displacement by longitudinal wires 18 passing axially through intermediate helical connectors 12.
Patent GB-1131163-A (GB)
Title: Styrene-modified phenolic resin
Inventor: HALE EDWARD CHOLONER
IPC: C08G8/28
Filed: 1967-04-11
Abstract: 1,131,163. Phenolic resin impregnated laminates. DOMTAR Ltd. 11 April, 1967, No. 16506/67. Heading B5N. [Also in Division C3] Decorative laminates may have a core comprising plies of fibrous sheeting impregnated and bonded with a cured infusible phenolic resin. The resin is prepared from 0À9-1À8 moles of formaldehyde per mole of phenol and a Friedel-Crafts condensation product of phenol or a mixture of phenol and up to 20% cresol and 0À1-0À5 moles per mole of phenol of styrene or an alkyl substituted styrene. In an example styrene and phenol are condensed by heating in the presence of cone. H 2 SO 4  and the product is treated with an aqueous solution of formaldehyde in the presence of sodium carbonate. This product is optionally diluted with methanol and applied to sheets of kraft paper which are stacked with a melamine impregnated sheet on top and heated under pressure to cure the resin.
Patent GB-380060-A (GB)
Title: Improvements in or relating to dynamometers for automobile brake testing machines
IPC: G01L5/28
Filed: 1931-06-06
Abstract: 380,060. Testing vehicle brakes dynamometrically. POWELL, A. D., 31, Clare Road, and BRADBURY & SONS, Ltd., J., New Street Works, both in Braintree, Essex. June 6, 1931, No. 16558. [Class 106 (ii).] Relates to devices of the kind in which the brake resistance is measured by a dynamometer incorporating a moving element in the means for driving the wheel under test, and consists in a casing A enclosing planetary gears E which engage simultaneously a sun wheel F on the driving shaft and a sun wheel G connected to the power-measuring means. In the example shown the casing is formed with a V-pulley A<1> driven by a belt and the shaft B drives a roller C on which the wheel under test is supported. The wheel G is connected to a member H the movement of which is resisted in any known way and measures the torque transmitted.
Patent GB-1312115-A (GB)
Title: Image support in particular film for episcopic projection
IPC: G03D15/00
Filed: 1970-04-08
Abstract: 1312115 Images for episcopic projection ORIZZONTE 2000 PRODUZIONE FILM S R L 8 April 1970 [10 April 1969] 16571/70 Heading G2C An image, such as a photographic film, for episcopic projection, comprises a carrier member supporting, directly or indirectly, a reflective metal layer obtained by vacuum deposition from a vapour, and a transparent image layer secured to the reflective layer. The simplest form is shown in Fig. 1, the carrier member 1 having a reflective metal layer 2 and a transparent imagecarrying layer 3 which may be a photographic film. The reflective layer is deposited by evaporation under vacuum, and finished so that it is specularly reflecting. A layer of magnetic material (4, Fig. 2, not shown) may be provided on the other side of the carrier for sound recording. In the further modification of Fig.4 the magnetic layer 5 is provided between the carrier member 1 and the reflective layer 6. Over the image-carrying layer 7 a further protective transparent layer 8 may be added, and the whole structure may be double-sided, as shown in Fig.4.
Patent GB-946926-A (GB)
Title: Improvements in or relating to engine heater devices
IPC: F02N19/10
Filed: 1960-05-11
Abstract: 946,926. Controlling burners. MAX SIEVERT A.B. May 11, 1960 [May 11, 1959], No. 16591/60. Heading F4T. In a heater for heating the cooling water of an engine the fuel gas for the burner is controlled by a valve (not shown) actuated by an electromagnet 24 and is ignited by an ignition plug 46 or by an electric filament, and a two-way switch 32 is actuated by a thermostat responsive to the hot gases from the burner to include a resistance 56 in the circuit from the battery 10 to the electromagnet 24 of the fuel valve after the burner has been ignited. The reduced current to the electromagnet is sufficient to keep the valve open. The two way switch 32 also de-energizes the induction coil 44 for the ignition plug 46 or reduces the current to the filament igniter. The circuit also includes a master switch 14, a switch 22 closed by the pressure of the gas supply upstream of the electromagnetic valve and a push-button switch 16 which is held closed at starting until a pilot lamp 18 is illuminated by the action of the thermostatic switch 32. The heater may be switched on by a timer a predetermined time before the engine is to be started. Specification 903,630 is referred to.
Patent GB-1262263-A (GB)
Title: Improvements in or relating to vehicle disc brakes
Inventor: RATH HEINRICH BERNARD
IPC: F16D55/224
Filed: 1968-04-05
Abstract: 1,262,263. Disc brakes. GIRLING Ltd. 14 March, 1969 [5 April, 1968], No. 16635/68. Heading F2E. A disc brake caliper having a bridge portion containing two circumferentially spaced windows 44, 46 is formed of two halves secured together along a jointing surface 18 parallel to the disc, by means passing between the windows, each half having parallel plane surfaces perpendicular to the disc for guiding a pad 32 aligned with the windows, whereby the jointing and guiding surfaces can be machined in a single rectilinear cutting stroke. Each half includes a pair of circumferentially spaced hydraulic cylinders with pistons to which the pads are spigotted for radial retention. Each pair of opposed pads is independently operated and is sufficient to actuate the brake. The pad backing plates have lugs extending above the disc.
Patent GB-951194-A (GB)
Title: Improvements in or relating to the polymerization of propylene and catalysts therefor
IPC: C08F110/06
Filed: 1960-05-11
Abstract: Propylene is polymerized at 30 to 200 DEG C. with a catalyst consisting of a titanium halide, an organoaluminium compound (an aluminium alky or alkyl aluminium halide or mixture thereof) and a glycol ether dispersed in an inert hydrocarbon which contains molecular hydrogen (e.g. 15-45 p.p.m. by weight).  In examples, the solvent was isooctane and the catalyst ingredients were TiCl3, AlEt3 and diethylene glycol dimethyl ether.
Patent GB-299348-A (GB)
Title: Improvements in hydrocarbon oil burner
IPC: F23D11/10
Filed: 1927-06-23
Abstract: 299,348. Teale, W., and McLauthlin, H. F. June 23, 1927. Spray burners; oil supply and overflow fittings. -A mixture of oil and water is supplied through a pipe 24 to a pipe 5 leading from the blower 1 and is delivered on to a baffle-plate 8 arranged in a fitting 6 in the main discharge pipe 4 from the blower. The mixture of oil, water, and air is then discharged under a thin semi-circular plate 28 on to a curved bit 3 formed of catalytic material, where ignition is effected. The water is stated to be broken up in the pipe 5 and at the plate 8 into fine particles each of which becomes coated with a film of oil. The oil films become decomposed as the particles flow along the bit 3 and enter the heat or " cracking " zone, the poisons and negative catalysts having low distillation temperatures being first liberated at the base of the bit where partial combustion is effected, and the balance of the hydrocarbons being broken up and the hydrogen and oxygen contained in the water being liberated towards the top of the bit, where complete combustion takes place. The bit comprises a hub 26 and an upwardly-inclined curved plate 27 and may be composed of iron, zinc, copper, aluminium, nickel, cobalt, silver, platinum, or a mixture of these metals, the preferred material being pure iron to which a trace of potash has been added as a promoter. A drip pan 29, also made of catalytic material, is arranged below the oil. The oil, water, and air supplies may be controlled by a valve 2 consisting of an outer casing 9 and a rotatable cone 10 divided by a web 17 into two compartments. The cone 10 is formed with a number of differently-sized openings 18, 19, 20 for air, oil, and water respectively, the sizes of the openings being such that the air, oil, and water are supplied to the pipe 5 in the correct proportions. The pipe 5 is formed with long-radius bends and the pipe 4 with abrupt bends so that the air passing through the pipe 5 will have the higher velocity on reaching the fitting 6. In a modified apparatus the oil is forced by a pump with water into an air pipe leading directly to the bit 3.