baber/WOPTO huggingface dataset:
Patent GB-1141942-A (GB)
Title: Improvements in or relating to metal casting
Inventor: SMITH LOREN WILLIAM
IPC: B22D17/22
Filed: 1966-04-05
Abstract: 1,141,942. Casting processes. SYMINGTON WAYNE CORP. 5 April, 1966, No. 15125/66. Heading B3F. A method of casting metal articles in cast metal moulds in a series of casting operations in which each operation produces one or more articles each identical with a corresponding article 'in the other operations, a new mould being made for each casting operation, the mould having such thermal properties that it retains its integrity at least until the article cast has attained stability of shape. The metal from which the mould is cast is of a lower melting point then the metal that is to be cast therein and after casting the mould metal can be melted and reused to form new moulds. The articles are made by die casting in which the metal is introduced into the mould under pressure and the pressure is maintained until the casting is formed. The casting metal is a ferrous or other high melting point metal and the mould is die-cast from aluminium in a permanent mould. In operation the casting metal is discharged by a plunger 5 from a charging cylinder 4 into the cavity 3 of the mould 2 via passages 7 and 8. The passage 8 is formed in a ceramic insert 9 located in the mould wall there being a destructable diaphragm 10 between the ends of passages 7 and 8 so as to prevent the passage of molten metal into the mould except by the actuation of the plunger. The metal of the mould is inert to the casting metal and the mould cavity is not provided with any protective treatment.
Patent GB-1455646-A (GB)
Title: Production of 3-sulphopropionic anhydride
IPC: C07D/
Filed: 1974-04-05
Abstract: 1455646 3-Sulphopropionic anhydride BASF AG 5 April 1974 [7 April 1973] 15217/74 Heading C2C 3-Sulphopropionic anhydride is prepared by exposing propionic acid, chlorine and sulphur dioxide to light having a wavelength of from 1800 to 8000 Š, the chlorine being present in an amount of less than 1 mole per mole of propionic acid and the sulphur dioxide being present in an amount by weight of 0À95 to 7 times the weight of chlorine. The reaction is preferably carried out in two stages, in the first stage with exposure to light at a temperature of from - 20‹ to + 50‹ C. and in the second stage without exposure to light at a temperature of more than 50‹ C.
Patent GB-972663-A (GB)
Title: Plutonium recovery from nuclear fuel
IPC: C01G56/00
Filed: 1963-04-18
Abstract: 972, 663. Recovery of plutonium. UNITED STATES ATOMIC ENERGY COMMISSION. April 18, 1963 [July 25,1962], No.15293/63. Heading G6R. In recovering plutonium from a chlorinatable nuclear fuel, a mixture comprising lithium chloride, or a salt selected from CaCl 2 , BaCl 2 , SrCl 2  and MgCl 2 , an approximately equimolar alkalimetal-aluminium double chloride, the said fuel and aluminium is maintained above melting temperature, agitated to ensure reaction, allowed to separate into three phases, and the plutonium containing phase removed therefrom. The nuclear fuel may, for example, be a plutonium aluminium alloy, in which case the addition of aluminium to the reaction mass is unnecessary, or a plutonium oxide, -uranium oxide ceramic material. The alkali-metal-aluminium double chloride is preferably potassium aluminium chloride. The temperature of the reaction is maintained between 700 and 800‹C. and the mass is then cooled to 600‹C. before phase separation. The three phases obtained are a heavy aluminium phase, an intermediate salt extractant phase containing the Pu and a light phase of double chloride. Further processing by a standard salt cycle process (Specification 945,899) extracts the plutonium from the intermediate phase. Specification 945,899 is referred to.
Patent GB-995149-A (GB)
Title: Production of styrene from ethylbenzene
IPC: C07C15/46
Filed: 1962-04-19
Abstract: Styrene is obtained by distilling a mixture containing ethylbenzene, xylenes and at least 0.3% by wt. of non-aromatic hydrocarbons boiling in the same range in a column or columns containing at least 150 stages at a reflux ratio of at least 40: 1 to obtain an overhead distillate containing ethylbenzene and non-aromatic hydrocarbons which is dehydrogenated and styrene recovered.  The distillation is effected as described in U.S.A. Specification 2,959,626. Unconverted ethylbenzene from the dehydrogenation is recycled and build up of non-aromatics is prevented by removing a bleed stream, by distillation of the recycle alone or together with the ethylbenzene distillate feed or by subjecting all or part of the recycle, together with the ethylbenzene distillate feed if desired, to a solvent extraction process.  The feed to the process preferably contains less than 5% by weight of non-aromatics and the combined fresh and recycle feed to the dehydrogenation less than 20%.  Dehydrogenation is effected conventionally e.g. using an alkali promoted iron oxide catalyst and styrene is recovered by distillation under reduced pressure.
Patent GB-612366-A (GB)
Title: Improvements in bottles and their closure members
IPC: B65D41/04
Filed: 1946-05-21
Abstract: 612,366. Bottle stoppers. ARNDT, L. A., and GERSTEL, M. M. May 21, 1946. No. 15378. [Class 125 (iii)] A bottle closure member 14, adapted to be retained in engagement with the neck by partial rotation relative thereto, has a cylindrical blind bore 15 for engagement with the cylindrical neck 11, interengaging flange and groove portions 13, 16 being provided on the surface of the bottle neck and inner surface of the closure member, and diametrically opposite sides of the bottle neck and of the closure member being cut away or flattened sufficiently to break into and interrupt the flange 13 and groove 16, and to allow disengagement thereof. As shown, the closure is retained in the closed position by the engagement of one or more spring pressed plungers 20 in the closure member with dimples 26 in the neck. To remove the closure member, it is turned through 90 degrees (Fig. 2) and lifted from the bottle, a boss 17 on the bottle neck fitting in a recess 19 in the closure member to form a bearing for rotation of the latter. In a modification, an interrupted flange on the closure member engages an interrupted groove in the bottle neck.
Patent GB-272523-A (GB)
Title: Improvements in or relating to record-card-controlled statistical machines
Filed: 1927-06-09
Abstract: 272,523. British Tabulating Machine Co., Ltd., (Assignees of Weinlich, H. A.). June 10, 1926; [Convention date]. Statistical machines.-A run of perforated recordcards which have previously been segregated into successive pairs (or threes &c.) of " like " cards, i.e. cards in which the perforations are identical in certain columns, are read by a mechanism which compares (i.e. reads simultaneously) two (or more) successive cards so as to detect an incomplete or excessive sequence of " like " cards ; means are provided for rendering ineffective one (or more) comparing operation folowing each and every comparing operation which detects a correct sequence of " like" cards. The Figure shows means for reading pairs of cards by brushes 1. 2 connected in series through electromagnets 6<a>, 6<b>, which, when energized, close contacts 7<a>, 7<b>. which are then maintained closed by well-known mechanical means until near the end of the card cycle. These contacts 7<a>, 7<b> are in series with magnets 12 and 30 and contacts 8 which are closed by cam 9 after the passage of the entire hole zone of the card past the brushes. Contacts 10, shunting the magnet 30, are closed by a slide 11 which is moved against its spring 15 one step per card cycle by cam 20 and pawl 19. When magnet 12 is energized the armature pawl 13 is raised and contacts 10 and 16 open. 24, 17, 33 constitute a sorting device and 18 is a printing magnet. Assuming the first two cards have like holes in the columns concerned, then contacts 7<a>, 7<b> are closed by magnets 6<a>, 6b, magnet 12 is energized and pawl 13 releases slide 11, so that contacts 10, 16 open. Consequently magnet 24 is unaffected and guide 17 remains as shown, sorting the first card to the left of wall 33. If the third card differs from the second, circuit 7a, 7<b>, 12 is not completed and the slide 11 is moved one step to the right by pawl 19. Contacts 16 are still open so that the second card is sorted to the left of wall 33. If the fourth card is "like" the third, magnet 12 is once more energized and pawl 13 is lifted so that contacts 16 remain open and the third card passes to the left of wall 33. If, on the other hand, the fourth card were not " like " the third, circuit 7<a>, 7<b>, 12 would remain broken and the pawl 19 would move the slide 11 a second step to the right, closing contacts 10, 16. Magnet 24 thereby becomes energized to move the guide 17 so that the single odd card, following a correct pair, passes to the right of wall 33. Assuming that an excessive sequence of three " like " cards occurs, at the end of the passage of the second and third cards contacts 7<a>, 7<b> still remain closed; but contacts 10 are open since slide 11 has been moved only one step to the right. Consequently when contacts 8 close, magnet 30 is energized, and its armature 35 breaks contacts 31 to stop the motor 32.
Patent GB-333878-A (GB)
Title: Improvements relating to the combustion chambers of internal combustion engines
IPC: F02F3/26
Filed: 1929-05-16
Abstract: 333,878. Fraser, R. P. May 16, 1929. Cylinders, combustion chambers of.-In an overhead-valve engine the combustion chamber is constituted by a cavity E in the piston which is either provided with a restricted entrance 7 or formed paraboloidal in shape as shown in Fig. 5. The base 9 and side walls 10 may be straight or curved and in the latter case the outer edge of the piston is curved to correspond.
Patent GB-529653-A (GB)
Title: Manufacture of dibromofluoranthene
IPC: C07C25/22
Filed: 1938-05-28
Abstract: 529,653. Dibromfluoranthene. SOC. OF CHEMICAL INDUSTRY IN BASLE. May 24, 1939, No. 15397. Convention date, May 28, 1938. [Class 2 (iii)] Dibromfluoranthene is produced by brominating fluoranthene in a diluent of higher boiling- point than carbon disulphide. Suitable diluents are nitrobenzene, mono-, di-, and trichlorbenzene, and tetrachlorethane. A halogen carrier may be present. Preferably the hydrobromic acid produced is removed from the reaction product by a current of air and the product is heated to dissolve separated dibromfluoranthene, after which the mixture is allowed to cool. Examples are given in which the bromination is effected with bromine alone or in the presence of iodine or iron powder.
Patent GB-1260186-A (GB)
Title: Recovering constituents of photographic colour development solutions
Inventor: HUTCHINS BERNARD ARTHUR
IPC: G03C7/44
Filed: 1969-03-25
Abstract: 1,260,186. Recovery of aromatic amines from developers. EASTMAN KODAK CO. 25 March, 1969 [27 March, 1968], No. 15419/69. Heading C2C. [Also in Division G2] Primary aromatic amino developing agents, particularly those of general formula wherein R and R 1  each represents hydrogen, a C 1 -C 6  alkyl group, which may be substituted (e.g. by hydroxy, amino, acetamido, or methylsulphonamido), a C 1 -C 6  alkoxy group, hydroxy or halogen, and R 2  and R 3  each represents a substituted or unsubstituted alkyl group, are recovered from a photographic colour developing solution by adding to the solution, the pH of which is (adjusted if necessary) between 9 and 14, a water soluble inorganic salt, having a water solubility of at least 30 g./l., in sufficient amount to result in the formation of a second phase, and thereafter separating the second phase, which consists essentially of the developing agent as the free base. Colour couplers that are also present in the photographic solution may be removed prior to the salt treatment by precipitation using mineral acid and carbon dioxide. Alternatively, the pH of the solution is adjusted to between 9À0 and 10À5 and the watersoluble salt added when the second phase is found to contain both colour developing agent and coupler. Benzyl alcohol, when present, can also be removed in the second phase if the process is operated at pH between 9 and 11. Specified water-soluble salts include sodium sulphate and other alkali metal and ammonium salts, e.g. bisulphate, sulphite, carbonate, bicarbonate and chloride. The salt content is between 60 and 500 g./l., preferably from 125-250 g./l. The process may be operated continuously or intermittently and the recovered materials can be recycled to the colour processing bath.
Patent GB-563348-A (GB)
Title: An improvement in or relating to lineal measuring machines for electric cables, ropes, cords, tapes, and the like
IPC: G01B5/04
Filed: 1942-11-03
Abstract: 563,348. Measuring length of cables etc.; reels. SHARP, L., and WINDER, R. Nov. 3, 1942, No. 15451. [Class 42 (ii)] [Also in Group IX] A machine for measuring the length of electric cables, ropes, tapes, &c. comprises an A-shaped frame adapted to support a drum A containing the material to be measured, a drum A<1> for the measured material and a. measuring wheel C having means for indicating the length wound on the drum A<1>. As shown, the drum A<1> is mounted at the apex of the frame and the drum A and measuring wheel on the two legs thereof, the material being wound from the one drum to the other by actuating a handle E on the shaft of the drum A<1>. The shaft of the wheel C carries a worm-wheel F which actuates an engraved dial G indicating the length of material on the drum A<1>. Measuring wheels of different circumferences or with grooves' of different circumferences, to suit the gauge of the material being measured, may be provided, or the wheel may be formed of segments, movable inwards or outwards, to vary the circumference of the wheel, by a lever plate rotatable on the shaft of the wheel and registering against a graduated disc thereon, the lever plate has a number of curved slots each engaging a pin projecting from a segment of the wheel and can be locked in its adjusted position by a milled screw engaging a slide bar adjacent the graduations on the disc. The material is held on the measuring wheel by pressure wheels D, D<1> carried on arms pivoted to brackets on the frame and controlled by springs. The drums or reels may each have a detachable flange held to the hub of the drum by hand-actuated slidable bolts on the flange engaging a groove in the hub.
Patent GB-692329-A (GB)
Title: Improvements relating to self-supporting building structures
IPC: E04H15/20
Filed: 1951-06-29
Abstract: 692,329. Pneumatic beams; tents &c. WINGFOOT CORPORATION. June 29, 1951 [Feb. 17, 1951], No. 15469/51. Classes: 20(i) and 20(iv) A pneumatic beam structure for use in a temporary building, e.g. a tent, comprises an inflatable fabric element 1 the upper and lower plies 3, 4 of which, when spread, are maintained in spaced parallel relation by inextensible tie threads 2, and a stiffener element 6 made up of a number of rigid members 7 braced by. cables 8, 9, 10, 11 and anchored within apertures 13 defined by reinforced fabric liners 14. Each anchoring device 12 comprises upper and lower disks 17, 18 which are clamped round an opening 13, a pair of bolts 20 passing through spacers 19 and being connected by nuts 23 to a U-shaped member 22. Bolts 26 secure each member 7 to a member 22, removal of the lower bolt allowing each member 7 to be rotated to lie in the same plane as the inflatable member 1 when the structure is dismantled for packing. The cables 10, 11, having the crossed cables 8, 9 clamped to them, pass through slots in the upper and lower ends of the members 7 and are anchored beneath the inflatable element 1 by fabric saddles 30. The element 1 is inflated by means of a valve 33. In a modification Fig. 7 pneumatic beams 34 support a single ply fabric 35.
Patent GB-155721-A (GB)
Abstract: 155,721. Schipper, L. Feb. 2, 1920. Pockets, retaining lettercases in. - A clip for retaining a letter-case in the pocket comprises a strip of metal of channel section folded over to provide a long branch 1 ending in a flat rounded point 3 and a short branch 2 on which is pivoted in lugs 4 a lever 5. The upper portion of the lever is pressed by a blade-spring 7 to grip the material of the pocket and the letter-case against the branch 1 which is inserted in the lettercase. By pressing on the lower end of the lever the grip is released allowing removal of the letter-case together with the clip.
Patent GB-1387384-A (GB)
Title: Starter drive
IPC: F16D47/04
Filed: 1973-04-02
Abstract: 1387384 Engine starter drives BENDIX CORP 2 April 1973 [27 April 1972] 15749/73 Heading F1K A starter drive for an internal combustion engine is adapted to be driven by a power shaft 12 and includes a sleeve 14 slidably keyed to the power shaft, a pinion gear 26 slidably journalled for axial movement relative to the power shaft and adapted for movement into and out of engagement with a gear 22 of the engine and a driving clutch member 20 and a driven clutch member 30 having complementary inclined torque transmitting teeth 34 and 36. The sleeve has external helical splines 18 formed on one extremity thereof and threadedly receiving the driving clutch member, the driven clutch member being secured to the pinion gear for movement therewith. A barrel housing 38 including an opened and a closed end is slidably supported at the closed end adjacent the other extremity of the sleeve and resilient means 50 within the housing abuts the driving clutch member and biases the clutch members into the engaged position. The clutch members are adapted to provide an over-running and an indexing function, the teeth having a driving surface and an over-running surface, according to the invention the teeth are undercut so that the driving surface is angularly dispersed relative to the axial plane of the clutch members. The arrangement is such that the driving surface of the teeth forms an angle between 5 degrees and 40 degrees relative to an axial plane. Means for moving the starter gear assembly toward or away from the engine gear 22 may comprise a conventional solenoid or an air or hydraulic cylinder actuated lever (not shown) connected with a shift collar 52.
Patent GB-1066777-A (GB)
Title: Improvements relating to fluid control valves
IPC: B65H63/032
Filed: 1965-04-13
Abstract: A fluid-control valve comprises a piston (16) (Fig. 3 not shown) in a cylinder (7), having a resilient closure surface (19) one one side and a permanent magnet (18) on the other.  An operating lever (3) is rotatably mounted by a spindle (5) and carries a permanent magnet (21) at one end.  Rotation of the lever (3) to a position where two magnets (21) and (18) are aligned causes the piston (16) to be lifted by magnetic attraction to allow flow from an inlet (11) to an outlet (14).  In the embodiment described the valve controls the pneumatic activation of a jacking mechanism controlling a drive cylinder of a bobbin onto which a thread is being wound.  The position of the lever (3) is controlled by a feeler (2) Fig. 1 not shown, which bears on the thread (1).  If the thread breaks, lever (3) is allowed to rotate to the valve operating position and disengage the drive to the bobbin.  When the thread has been joined, lever (3) is rotated to a position where the magnet (21) is aligned with a further piston (17) which lifts to exhaust the jacking circuit through passages (12), (15) and (10).  The feeler (2) is then brought to bear on the thread (1) in a position wherein two magnets (21) and (18) are not aligned and two pistons (16) and (17) are allowed to close the outlets (9) and (10) by gravity.  The pistons (16) and (17) may be loaded to the closed position by springs.
Patent GB-158051-A (GB)
Abstract: 158,051. Higgins, E. E., and Callow, H. A. July 9, 1920. Foot-rests.-The leg-shield A of motor-cycles are turned back to form footboards B, and connected by hinging to a plate D which shields the engine from mud. The footboards may be adjustably secured to plates carried by a crossbar C.
Patent GB-964573-A (GB)
Title: Vulcanization of polymeric materials
Inventor: PEARSON ROLAND WILLIAM
IPC: B29C35/08
Filed: 1960-05-05
Abstract: Elastomeric polymeric material is vulcanised by incorporating therein a reducing agent promoter additive and exposing the mixture to ionising radiation. Reducing agent promoter additives are reducing agents which result in redox polymerization of styrene under specified test conditions and include m-phenylene dimaleimide, triethylene tetramine, tetraethylene pentamine, 1-6-hexanediamine, diethylene triamine, ethylene diamine hydrate, piperidine, ethanolamine, sodium p-toluene sulphinate, hydrazine, benzene, 1-2-propanediamine, L-ascorbic acid, dihydroxy maleic acid, dodecane thiol, hexamethylene tetramine, L-sorboso, sodium formaldehyde sulphoxalate, and 1-3-dihydroxy acetone. Specified rubbers are butadiene-styrene and natural rubber. There may also be present a sequestering agent, an oxidising agent, and a surface-active agent other than a fatty soap while the material may be subjected to solvent extraction before exposure to radiation.
Patent GB-567792-A (GB)
Title: Improvements in and relating to fans
IPC: F04D29/34
Filed: 1943-09-29
Abstract: 567,792. Screw fans. AIRSCREW CO., Ltd., and LYNAM, F. C. Sept. 29, 1943, No. 15995. [Class 110 (i)] An adjustable fan blade 10 of sheet metal, plastics, or other material, has a root 11 provided with an internally-threaded portion 12. The root is screwed to a ring nut 13, the blade adjusted angularly, the nut 13 screwed up and rivets 14 fitted. Openings 15 in the side discs 3 permit entry of the nuts 13. A flat blade root may be fitted into slits formed in the end of the socket 11 and secured by brazing or welding.
Patent GB-470939-A (GB)
Title: Improved quenching bath for hardening and tempering rock drills
IPC: C21D1/63
Filed: 1936-06-08
Abstract: 470,939. Tempering drills. BEDFORD, R. A. June 8, 1936, No. 15997. Convention date, March 9. [Class 72] In the tempering of rock drills 5, the latter are held in a vertical position by magnets 16 disposed in the upper members 15 of racks 13 supported on the framework of a quenching tank 3, the drills being guided in slots in lower members 14 of the racks. The lower ends of the drills are supported on a foraminous plate 4 adjustably supported by screws 20 on ledges 21 in a tank 2 which is supported inside the tank 3. The quenching fluid which is fed into the tank 2 by pipes 10, 10b overflows into the tank 3 from which it is removed through a pipe 12 by a pump 7 which circulates the liquid through a cooling coil 8 and thence passes it back into the tank 2. The coil may be cooled by a fan or immersed in a cooling liquid, the temperature of which is thermostatically controlled. Instead of the members 14, the ends of the drills may be located between pins projecting upwardly from the plate or by a single pin which enters and projects a short distance into the interior of the drill.
Patent GB-1035693-A (GB)
Title: Process for the manufacture of copolymers of acetals
IPC: C08G2/18
Filed: 1963-04-23
Abstract: 99 to 80% of trioxane and 1 to 20% of the cyclic formal of a saturated thioether which may be substituted by an aliphatic hydrocarbon radical having 1 to 4 carbon atoms or a mono-or bi-nuclear aromatic radical, are polymerized at -50 to +100 DEG  C. using a cationic catalyst. Specified formals are thiodiglycolformal and thiodiethyleneglycolformal while boron fluoride, its derivatives, e.g. etherates and diazonium fluoroborates are specified catalysts. The polymerization may take place in bulk solution or suspension especially by adding a mixture of the cyclic formal and catalyst to freshly distilled trioxane free from solvent.