baber/WOPTO huggingface dataset:
Patent GB-1074383-A (GB)
Title: Improvements relating to block c0-polymers of propylene and ethylene
IPC: C08F297/08
Filed: 1964-08-04
Abstract: Solid block copolymers of propylene and ethylene are prepared by a process comprising: (a) maintaining liquid propylene, containing a catalyst for the isotactic polymerization of propylene, at a temperature at which polymerization occurs, thereby forming a suspension of solid polypropylene in liquid propylene; (3) separating the resulting polypropylene still containing the catalyst from substantially all the monomeric propylene if an ethylene block alone is to be added or from all but up to 10% of monomeric propylene (based on the weight of the polypropylene) if an ethylene-propylene block is to be added; (c) adding to the polypropylene from 100 to about 450% of its weight of an inert saturated aliphatic, saturated cycloaliphatic or aromatic hydrocarbon which is liquid under the conditions of the process, thereby forming a suspension of the polypropylene in the liquid hydrocarbon; (d) bringing ethylene into contact with the said suspension while maintaining the suspension at a temperature at which ethylene polymerizes, so forming a solid block copolymer of propylene and ethylene, the amount of ethylene brought into contact with the suspension being such as will bring the ethylene content of the block copolymer to not more than 20% by weight; and (e) subsequently separating the block copolymer from the liquid hydrocarbon.  Suitable catalysts are mixtures of an organometallic compound of a Group II or III metal and a halide of a Group IVa, Va or VIa metal e.g. a titanium trichloride-aluminium trichloride complex activated with diethyl aluminium chloride or an aluminium trialkyl.  Preferred liquid hydrocarbons are the C3- 6 aliphatic compounds, viz. propane, butane, pentane  and hexane; others also specified are heptane, cyclohexane, toluene, benzene and xylene.  Pressures up to 70 kg/cm.2 and temperatures up to 170 DEG C. may be used for the block polymerization process. An apparatus for carrying out the process is described.  The block polymers can be blow moulded, injection moulded or extruded into articles such as waste baskets, bottles, tubing and films.
Patent GB-1005161-A (GB)
Title: Paste for cleaning false teeth
IPC: C11D7/60
Filed: 1963-08-06
Abstract: Pastes for cleaning false teeth comprise mixtures of cream of tartar or potassium borotartrate with sodium bicarbonate and sodium perborate.  The mixtures are preferably incorporated into a water-soluble excipient comprising, by weight, 50 parts glycerol, 50 parts water,15 parts stearin or stearic acid and 3 parts aqueous ammonia.  A preferred paste comprises by volume, 2 parts of cream of tartar or potassium borotartrate, 2 parts of sodium bicarbonate and 1 part of sodium perborate.  Other additives are wetting agents, foaming agents, bactericides, perfumes and mild abrasives. Specification 527,041 is referred to.
Patent GB-168841-A (GB)
Title: Improvements in and relating to davits
IPC: B63B23/18
Filed: 1920-11-03
Abstract: 168,841. Naamlooze Vennootschap Internationale Nautische Handel- Maatschappij. Sept. 7, 1920, [Convention date]. Davits.-A sluicing davit of the type swung out by the weight of the boat, is fitted with a brake drum 3 coacting with brake shoes 5 on links a pivoted on pins 6 and connected by a link 10 to a lever 13, pivoted at 14 on the frame 2. The brake is applied by a spring 15 or a counterweight. The fall 17 may be connected to the lever 13 to increase the braking effort. Specification 149,175 is referred to.
Patent GB-1293866-A (GB)
Title: Hand tool
Inventor: STURGES FREDERICK WILLIAM
IPC: B25B13/06
Filed: 1970-06-26
Abstract: 1293866 Screwing-up tool SPQR ENG Ltd 26 June 1970 31126/70 Addition to 1197433 Heading B3N The hand tool for setting tappets of the parent Specification is modified by having an indexing means between the tubular member 1 and the adjustment member 4. Tubular member 1 has a nylon bush 6 in which plastics material shaft 5 slidingly fits. The shaft is moulded to a first part 12 which engages with a second part 18 via a ratchet arrangement comprising teeth 16, 17 on the parts 12, 18 respectively. A spring 28 determines when slip occurs between the teeth in a clockwise direction; anticlockwise rotation has a positive non-slip drive. The indexing means comprises splines 14 on a skirt portion 13 of part 12 and a roller 40 located on a part of bush 6 defined by slots 34 and 35 to form a flexible arm 37. Due to the action of the arm 37 and the shaping of the sides of splines 14, the resistance to rotations of the adjustment member relative to the tubular member is greater in an anticlockwise direction than in a clockwise direction. Shaft 5 is attached to a metal extension 7. Thus the screwdriver shaft is slightly flexible. A ring 42 prevents separation of the adjustment member and the tubular member.
Patent GB-369166-A (GB)
Title: Rontgen tubes
IPC: H01J35/12
Filed: 1931-11-10
Abstract: 369,166. Turbines. SIEMENSREINIGER-VEIFA GES. FœR MEDIZINISCHE TECHNIK, 58, Mohrenstrasse, Berlin. Nov. 10, 1931, No. 31175. Convention date, Nov. 27, 1930. [Class 110 (iii).] Revolubly mounted R÷ntgen-ray tubes carry the rotor of a turbine. The tube 1 is mounted in ball bearings 5, 6 in a case 4 and is rotated by a turbine wheel 12 and jet 11 using the cooling fluid for the anticathode. The fluid enters at a pipe 16 in an earthed central part 17 of the case 4 and flows through the turbine shaft 13 to the anticathode. If compressed gas is used, no return pipe is necessary, but, if oil is used, a return pipe is provided in the part 17. Provision may be made for supplying cooling fluid without rotating the tube. The speed of the tube may be controlled by a centrifugal governor acting on a brake or on an inlet valve.
Patent GB-286778-A (GB)
Title: Improvements in two stroke radial cylinder internal combustion engines
IPC: F02B75/22
Filed: 1926-12-08
Abstract: 286,778. Villiers, C. A. Dec. 8, 1926. Two-stroke-cycle engines; pumps and ejectors; driving-gear. - An engine has three cylinders radiating from a common combustion chamber, the pistons 5, 6, 9 driving on to separate crank shafts which are coupled together by chain, linkage, or as shown, toothed gear 13, 14. Air or combustible mixture is supplied by a Roots blower; the engine may work on the Diesel cycle. The piston 9 controls the inlet ports 8 and the other pistons exhaust ports 4; the pistons may be out of phase. The exhaust is withdrawn by an ejector worked by steam generated in a flash boiler by means of the exhaust gases. The exhaust is passed through a condenser to collect the water which is used again in the boiler.
Patent GB-666119-A (GB)
Title: Method of and apparatus for gasifying solid fuels
IPC: C10J3/57
Filed: 1949-12-05
Abstract: 666,119. Gasifying solid fuels. RUMMEL, R. Dec. 5, 1949 [Dec. 6, 1948], No. 31209/49. Class 55 (i). Solid fuel is subjected in its own molten clinker to distillation and to gasification with air, oxygen, or mixtures with or without endothermically reacting agents such as steam or carbon dioxide, the clinker being maintained in undulating and circulatory movement by the flow energy of the gasifying agent and optionally the fuel flowing into the clinker. A heating zone 1a is connected to a distilling and gasifying chamber 1b by conduits 12, 13, leading from beneath the level of molten clinker in the respective zones to the floor of the other chamber. Gasifying agents reacting exothermically with the fuel enter the heating zone through nozzles 4 in the floor, and dust fuel is blown into the gasifying zone by gasifying agents, producer or other gas, introduced through an inlet 6. By the circulatory motion set up the molten clinker conveys heat absorbed in zone 1a to zone 1b. In a modification the fuel is admitted at the level of the clinker which circulates downwardly in the gasifier and upwardly in the heating zone. Gasifying plant including a fuel drier 31, a steam boiler made up of water tube walls and a preheater 38 for the gasifying agent comprises a simple chamber divided above the clinker level into heating and gasifying spaces by a tube wall 16 each with a gas cooling grid 22, 24. Wet lignite is conveyed up the drying tube 31 by the product gases part of which are recirculated to prevent overheating. Combustion gases from zone 1a are passed through one of a pair of regenerators 38, air entering beneath the clinker through nozzles 19 having traversed the other previously heated regenerator.
Patent GB-218566-A (GB)
Title: Improved drawing table or desk
IPC: A47B5/04
Filed: 1923-12-12
Abstract: 218,566. BrouckÞre, L. de, and Etablissement Recherches et Constructions Scientifiques, Soc. Anon. Dec. 12, 1923. Desk slopes; desk adjustments.-A wallmounted drawing-table which can be adjusted in inclination or folded back, in which a rear crossmember 3 is guided by suitable slideways 1 secured to the wall, and the side frames 6 are supported by pivoted struts 5, is clamped by two longitudinally-movable rods 2 passing through the slideways and provided with means such as nuts and washers 8 bearing against the exterior of the slideways. Movement of the rods is effected by a control device such as a rod 9 which is pivoted at 10 and to which the rods are pivotally connected at opposite sides of the pivot 10. The table proper 4 may be detachably held in the frame 6 by plate springs 12.
Patent GB-520712-A (GB)
Title: Apparatus for and method of separating seeds
IPC: B03B5/28
Filed: 1938-10-29
Abstract: 520,712. Separating seeds. MAYBEE, G. E. Oct. 29, 1938, No. 31307. Convention date, Nov. 1, 1937. [Class 82 (ii)] To separate seeds from one another, e.g., weed seeds from other 'seeds, the seeds are spread in a thin layer on a conveyer having apertures of a size which prevent the seeds from falling through but allow liquid to pass freely, and the conveyer is introduced into a body of liquid, the surface of which is flowing in the same direction as the direction of movement of the conveyer. The seeds may have been previously conditioned and those that float on the surface of the liquid are separated from those which remain on the conveyer. Seeds from a hopper 1 and conditioning liquid from 2 are mixed at 3 and fed down a spreader plate 4 which is so spaced above an apertured conveyer belt 5 that a layer only one seed thick is formed on the belt. The plate 4 is preferably provided with an opening 4a which may be covered with a screen, so that liquid can pass through on to the back of the plate. Excess conditioning liquid is removed by a roller 8 having an outer surface of absorbent material,: e.g., sponge rubber, the liquid removed being pressed off the roller 8 by the hard roller 9 and recirculated by the pump 24. The conveyer then carries the seeds into the separating tank 10 which has a deep end 10a and a shallow end terminating in a lip 10b which is adjacent the conveyer roll 7. Resilient flaps 13, 14, may be provided to prevent loss of liquid at the ends of the tanks. Liquid is supplied to the tank by a pump 15 and valved pipe 16 and passes upwards through the perforations in the conveyer and flows with the conveyer to the lower end of the tank. The conditions are preferably adjusted so that the velocity of the liquid and that of the conveyer are the same. To prevent lateral flow and eddies between the sides of the tank and the conveyer, the conveyer is preferably of a width such that it extends right across the tank, and rubber strips 11, 12, Fig. 2, may be provided above and below the conveyer, the strips 11 being either on the tank walls or on the conveyer. A separating plate 17 divides the floating seeds from those which remain on the conveyer and are carried below the surface of the liquid, the two grades being passed to screening means 18, the liquid from which is recirculated by the pump 15 fresh liquid being supplied by the pipe 22. Means are provided for adjusting the inclination of the conveyer and its speed of travel. U.S.A. Specification 2,031,943 is referred to.
Patent GB-722585-A (GB)
Title: Engine speed governors
Inventor: HARRIS THOMAS ALFRED
IPC: G05D13/00
Filed: 1952-12-11
Abstract: 722,585. Speed governors. LUCAS (INDUSTRIES), Ltd., J. Dec. 2, 1953 [Dec. 11, 1952], No. 31369/52. Class 57. [Also in Group, XXIX] An engine-speed governor comprises a rotary member c carrying radially movable centrifugal bodies e, an annulus f surrounding the member and movable laterally by the centrifugal bodies, and a valve operable by the annulus for controlling a mechanism responsive to fluid pressure. The valve member j and the annulus f are connected to an arm h pivoted at m. When the governing speed is reached, the bodies e increase the eccentricity of the annulus f and thus open the valve to permit fluid to escape from a servomotor cylinder n (see Group XXIX). The servomotor controls a fuel pump, a throttle or a by-pass for regulating the fuel supply. In an alternative construction, the bodies e decrease the eccentricity of the annulus f at the governed speed and have their outward movement limited by an apertured ring secured to the member c. The valve is also modified and comprises a flat member supported by a diaphragm and moved by the lever h to restrict the rate of flow through a drain from a chamber connected to the speed-controlling means.
Patent GB-830065-A (GB)
Title: A pneumatically-operated free piston engine, wherein the working air is controlled by the pressure fluctuations in the cushioning chambers
IPC: F01B11/06
Filed: 1958-10-01
Abstract: 830,065. Compressed-air engines. GEWERKSCHAFT EISENHUTTE WESTFALIA. Oct. 1, 1958 [Oct. 11, 1957], No. 31373/58. Class 122 (3). A pneumatically-operated free piston engine, Fig. 1, in which the working air is controlled by the pressure fluctuations in the cushioning chambers 12, 13 is arranged so that the compressed incoming air flows around the compression ends of the piston cylinder 10, thereby cooling the latter before the air enters the working chambers 13, 14. The air is fed into ducts 22, 22a, Fig. 2, which communicate with annular jackets 23, 24 surrounding the cushion chambers 12, 13, the jackets being formed with a partition wall 25 which ensures that the air completely circulates around the entire periphery of the cushion chambers. The jackets 23, 24 are connected to the ends of a control valve housing 17 by pipes 26, 27 which also enclose control pipes 20, 21 communicating with the valve 16 and the chambers 12, 13. By this means the air passing through the pipes 26, 27 also serves to cool the control pipes.
Patent GB-1428282-A (GB)
Title: Propionate adducts
IPC: C07C233/12
Filed: 1973-07-02
Abstract: 1428282 Xylene adducts SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 2 July 1973 31416/73 Heading C5E [Also in Division C2] The invention comprises adducts consisting of (a) ethyl-2-(N-benzoyl-3,4-dichloroanilino) propionate and either (b) p-xylene, m-xylene or ethylbenzene or (c) p-xylene and at least one of o-xylene, m-xylene and ethylbenzene which may be prepared by cooling a liquid mixture of components (a) and (b) or (c) to a temperature at which the adducts precipitate and separating said adducts from the mother liquor. The adducts decompose on heating to give ethyl - 2 - (N - benzoyl - 3,4 - dichloroanilino) propionate plus hydrocarbons. When the adduct forming system comprises components (a) and (c) it is found that the ratio of p-xylene to other hydrocarbons in the adduct is higher than that in the hydrocarbon mixture from which the adduct was formed and this can be used to selectively isolate p-xylene from other hydrocarbons in component (c).
Patent GB-446583-A (GB)
Title: Manufacture of anti-halation layers and filter layers
IPC: F41C3/10
Filed: 1934-11-02
Abstract: 446,583. Antihalation and filter layers for photographic plates and films. 1. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Nov. 2, 1934, No. 31499. Convention date, Nov. 18, 1933. Drawings to Specification. [Class 98 (ii)] Dyes of the triphenylmethane series in which one or more sulphalkyl groups are introduced into the molecule are used for dyeing colloids such as gelatin, to serve as antihalation or filter layers. The dyes are manufactured according to known processes, e.g. by synthesis from benzaldehydes or benzhydrols and are used in a quantity of about 1-5 gms. per 100 gms. gelatin. Examples are given of the use of 4-#-sodium sulphoxy-ethyl-di-(4<1> :4<11>- dimethylamino) triphenyl-1-methylcarbinol and 3 : 4-#-di (sodium sulphoxy-methyl)-di-(4<1>: 4<11>- dimethylamino) triphenyl - 1 - methylcarbinol. In place of gelatin, gum arabic, polyglycuronic acid, or artificial resins may be used as binding- agents.
Patent GB-1058107-A (GB)
Title: Conveyor belt frame
IPC: B65G21/02
Filed: 1964-08-04
Abstract: 1,058,107. Troughed idler rollers. STAMICARBON N.V. Aug. 4, 1964 [Aug. 5, 1963], No. 31587/64. Heading B8A. A frame for an endless belt conveyer comprises interconnectable sections 5 supporting idler rollers for the forward and return runs of the belt, each section 5 comprising W-sectioned side wall bolted to transverse connecting pieces 2, 3 and joined longitudinally to each other by the same bolts 10, 13, and connecting strips 15, 15<SP>1</SP>. The two outer pockets of the W - section wall face outwardly and house the nuts 11, 14 of the bolts 10, 13 and the strips 15, 15<SP>1</SP>. The inner pocket of the W- section provides a surface up against which the return run of the belt may rub if it wanders from the idlers. The lower run of the belt is carried on single rollers mounted on supports 23 at every join in the side walls, the supports having three positions for receiving the roller shaft such that the same can be angled to the direction of belt to control wander. An aperture 27 is provided in the side walls adjacent the supports 23 to facilitate adjustment. The upper run of the belt is on troughed idlers above the lower idler comprising a centre and two outer adjustable idlers mounted on supports 17, 18 secured to the connecting pieces 2. The side wall members 1 are symmetrical about their longitudinal axes. Cover plates 28 are provided between the upper and lower run of the belt.
Patent GB-791210-A (GB)
Title: Internal combustion engine crankcase breather system
Inventor: DRUZYNSKI FRANK C
IPC: G05D16/06
Filed: 1956-10-17
Abstract: 791,210. Ventillating crankchambers; treating charge. CONTINENTAL MOTORS CORPORATION. Oct. 17,1956, No. 31613/56. Class 7(2) To ensure crankcase pressurization at all times in a submersible fuel-injection engine, a valve 14, Fig. 1, between crankcase connections 13a, 13b and the air inlet manifold 16 is acted on by atmospheric or water pressure according as the engine is not or is submerged. The valve 14 comprises a valve member 37, Fig. 2, controllin communication between exit ports 31 of the connections 13a, 13b and a pipe 15 leading via a filter 19 to a point just downstream of an engine-throttle valve 17 in an upwardly extending air intake (not shown). The member 37 is mounted on a fabric-reinforced synthetic rubber diaphragm 35 subjected via an air cleaner 33 to the atmospheric or water pressure, which must be exceeded by the crankcase pressure sufficiently to open the valve member 37 before crankcase gases can pass to the manifold 16.
Patent GB-337584-A (GB)
Title: Apparatus for playing an indoor table game
IPC: A63F7/06
Filed: 1930-07-09
Abstract: 337,584. Bull, E. A. July 9, 1930. Drawings to Specification. Table games.-Relates to apparatus for playing a table game simulating football of the type comprising a piece of cloth for spreading on a table and marked off to resemble a miniature football field, two miniature goal posts adapted to be mounted at opposite ends of the cloth, balls representing players and coloured to define the opposed teams, and a ball representing a football and differing in colour from the balls representing the players. The invention consists in the feature that the ball representing the football is composed of sponge rubber.
Patent GB-1130670-A (GB)
Title: Tool holder
IPC: B23B31/107
Filed: 1967-07-11
Abstract: 1,130,670. Chucks. BALAS COLLET CO. 11 July, 1967 [23 Aug., 1966], No. 31860/67. Heading B3B: A quick-change toolholder comprises a body member S having a conical socket 8, a chuck or like toolholder A adapted to seat in the socket and at least one ball, or as shown two balls 6, 7 disposed in axially elongated through slots 4, 5 in the body S and arranged to project both into a circumferential groove 19 in the chuck and into inclined cam grooves 13, 14 in a collar C such that rotation of the collar in one direction or the other forces the chuck into or out of seating engagement with the socket. The collar C has for both balls, axailly directed groove portions of depth sufficient to receive the balls to allow for complete removal of the chuck. The chuck has a keyway 26, Fig. 5, for positive drive by a key 24 secured to the body S of the toolholder. The slots 4, 5 have projecting lips at their inner ends for retaining the balls.
Patent GB-533888-A (GB)
Title: Sewing machine
IPC: D05B57/14
Filed: 1939-12-11
Abstract: 533,888. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Dec. 11, 1939, No. 31917. [Class 112] The balance wheel shaft 45 is driven by an electric motor 57 and drives through a toothed reduction gearing a main lower shaft 13. The shaft 13 drives at equal speed a further shaft gearing with a vertical looper shaft by a two to one skew gear. Feed motion is imparted to a lever 20 by a cam lever 25 and a pin 24 slidingly engaged by a pivot on a link 22. The position of the link 22 is controlled by a stitchregulating or reversing.lever 28. A cam-actuated finger gives the bobbin-case a slight backward movement at the appropriate moment.
Patent GB-899628-A (GB)
Title: Anodizing system
IPC: C25D11/02
Filed: 1958-10-07
Abstract: 899,628. Anodizing. REYNOLDS METALS CO. Oct. 7, 1958 [Oct. 7, 1957], No. 31921/58. Drawings to Specification. Class 41. A method of anodizing an article of aluminium, magnesium or copper comprises rapidly forming a uniform dense and electrically resistive layer of oxide thereon within an initial period not exceeding 60 seconds by immersing the article as anode in an anodizing electrolyte and applying current thereto while controlling the anodizing rate to avoid burning, and thereafter continuing anodization of the article at an average anodizing current density greater than that employed in the initial period to form the main body of the final anodized layer thereon, progressively increasing the current density more rapidly and to a higher maximum value than would be feasible in the absence of the resistive layer. The process is suitable for continuous operation with metal strip, suitable apparatus being described. The electrolyte may be aqueous sulphuric acid.