baber/WOPTO huggingface dataset:
Patent GB-749749-A (GB)
Title: Diketene-ketone adducts
Inventor: CARROLL MICHAEL FRANCIS
IPC: C07D319/06
Filed: 1952-08-13
Abstract: The invention comprises adducts of diketene with ketones containing no polar groups other than the reacting CO group and which have the general formula R1COR2 where R1 and R2 are alkyl groups or one is an alkyl and the other an aryl group, at least one of the said alkyl groups in the dialkyl ketones and the alkyl group in the alkyl aryl ketones having at least two carbon atoms on the carbon adjacent the carbonyl group and the aryl groups having no substituents adjacent the carbonyl group or wherein R1 and R2 taken together with the carbonyl carbon atom form a cyclo-alkyl group, at least one of the a -carbon atoms of which has two hydrogen atoms attached thereto. The compounds are believed to be 2:2-disubstituted-4 - methyl - 6 - keto - 1:3 - dioxenes, the substituents being the respective two alkyl groups, the alkyl and aryl groups or the cycloalkyl group.  They are prepared by reacting diketene with the respective ketone, generally under reflux in the presence of an acid esterification catalyst, e.g. an aryl sulphonic acid, zinc chloride or stannic chloride.  The ketone is preferably used in excess, the unchanged ketone being recovered thereafter by distillation or by crystallization of the adduct when the latter is a solid.  Adducts of the higher boiling ketones may be prepared by ketone exchange with the adduct of a lower boiling ketone by adding excess of the higher boiling ketone to the adduct in the presence of an organic acid having a dissociation constant less than 10-4 such as acetic acid, or a very small quantity of a strong mineral acid and distilling off the liberated lower ketone.  Examples describe the preparation of (1) acetone adduct C7H10O3; (2) acetophenone adduct C12H12O3; (3) methyl ethyl ketone adduct C8H12O3; (4) dibenzyl adduct C19H18O3; (5) cyclohexanone adduct; and (6) methyl isobutyl ketone adduct.  The adducts may be used for the same syntheses as is diketene; thus, the adducts react with alcohols to produce aceto acetic esters and with primary amines to produce aceto acetamides and on heating the adducts in a suitable solvent, dehydro acetic acid is formed; further examples describe the reaction of the acetone-adduct with (9) dry ethanol in the presence of triethanolamine catalyst at 90-100 DEG  C. yielding ethyl aceto acetate; and (10) aniline in presence of di-ethanolamine catalyst yielding acetoacetanilide; and (11) formation of dehydroacetic acid by heating the acetone-adduct in toluene in presence of a little calcium acetate.
Patent GB-614205-A (GB)
Title: Improvements in or relating to pattern drawing machines
IPC: B22C17/10
Filed: 1946-07-08
Abstract: 614,205. Moulding - machines. EDWARDS, A. V., and SHORT, A. July 8, 1946, No. 20383. [Class 83 (i)] A pattern-drawing machine comprises a hooped frame 11, Fig. 5, which is rotatable about a horizontal axis and has a roller track 18 to receive a pattern plate 25 and flask 26, means 23, 24 for separately clamping these to said track, and an inverted track 20, and verticallymovable means 45 adapted, when the frame 11 has been rotated through 180 degrees from its normal position, to be raised to receive the inverted mould, Fig. 7, and lower it on to the track. The sand is rammed into the flask in any suitable machine and the plate 25 &c. is fed along the roller track 22, Fig. 1a, onto the track 18 and between guides 64. A valve 57, Fig. 4, is then moved from " off " position to the "clamp mould position in which it supplies compressed air to cylinders 28, 30 to close four clamps 23 and four clamps 24. A switch 54 is then closed to drive an electric motor which acts through reducing gearing 33, Fig. 1b, and pinion 35 to rotate the frame 11 through 180 degrees, a cam 38 tripping a switch 37 to stop the motor and applying an electromagnetic brake. A plate 65, Fig. 7, is then slid onto the track 20 and a valve 58, Fig. 4, is moved to admit air to a cylinder 39 and cause a telescopic plunger 41 to lift the head 45 and the plate 65 into contact with the mould, spring pressed plungers 46, Figs. 1a and 1b, which actually engage the plate 65, yielding as necessary so that each takes part of the load. The valve 59 is then moved to supply air to the inside of the plunger 41 to lift a piston 49 and cause arms 50 to press friction blocks against and thus hold the plungers 46 in their equalised position. The valve 57 is then moved to release the flask clamps 24 while keeping the pattern plate 25 clamped so that flask and mould are supported only by the plate 65. The valve 59 is then moved to actuate vibrators, not shown, on the plate, while still keeping the plungers 46 rigid. The valve 58 is then moved to exhaust the cylinder 39 and lower the mould &c. from the pattern onto the track 20 whence it is slid out onto the track 22 for coreing &c. The vibrators are then stopped and the switch 55 operated to rotate the motor and frame in the reverse direction until this is stopped in its original position by a cam 38<SP>1</SP>, Fig. 1b, and switch 37. The valves 57 and 59 are then moved to their off positions and the plate 25 removed. The handles of the valves 57 and 59 are arranged so that they prevent the operation of the switch 54 when the clamps 23, 24 are open and of the switch 55 if the valve 59 is in its off position.
Patent GB-1502518-A (GB)
Title: Marine craft self-steering device utilizing hydrodynamic servo
IPC: B63H25/00
Filed: 1976-05-18
Abstract: 1502518 Self-steering gear S P KNOOS 18 May 1976 [17 June 1975] 20451/76 Heading B7V In a marine craft self-steering gear assembly an oar member 11 supported on the transom of the craft 4 has pendulous movement and is coupled to the rudder 14 so that said pendulous movement effects rotation of the rudder. In the embodiment shown, the steering control action is provided by a wind-vane 25 which through a linkage comprising rod 47 effects rotation of oar member 11 about its shaft, the reaction with the water then producing the pendulous movement. The wind vane 25 is set by a control wheel 23.
Patent GB-722562-A (GB)
Title: Improvements in storage and delivery plant for cement and other materials
Inventor: CLARK PETER
IPC: B65G53/22
Filed: 1952-08-14
Abstract: 722,562. Pneumatic conveyers; shoots and hoppers. EONIT ENGINEERING CO., Ltd. Aug. 12, 1953 [Aug. 14, 1952], No. 20483/52. Class 78 (1). An elevator 10 delivers material, such as cement, through a shoot 13 to a hopper 14 which is mounted in the upper part of a silo 1 and is connected by a shoot 15 to the hopper of a weighing apparatus 16. Excess material overflows from the hopper 14 into the silo and passes through shoots 4, 7 and a junction-box 8 to the boot of the elevator. The junction-box 8 is connected also by a shoot 12 to a shallow feed hopper 11 to which the material is delivered by a lorry. This hopper has a hinged waterproof cover 47 which is raised and lowered by a winch-actuated cable 48. The material in the hopper rests on a flexible porous diaphragm, such as canvas stretched over wire frames fitted with wire mesh, through which low-pressure air is passed as described in Specification 722,561. The shoots 4, 7, 12, 15 and the junction-box 8 are provided with similar means for aerating the material. Means is provided for cutting-off the supply of air to the hopper 11 when it is empty and only material from the silo is being supplied to the hopper 14.
Patent GB-886294-A (GB)
Title: Improvements in storage arrangements for radio-active components
IPC: G21C19/08
Filed: 1960-06-10
Abstract: 886,294. Storing radioactive material. BABCOCK & WILCOX CO. June 10, 1960 [June 12, 1959], No. 20497/60. Class 39(4) A storage arrangement for spent fuel elements and other radioactive components withdrawn from a reactor 10 through a tube 14 comprises a fuel transfer pool 16 connected with a storage pool 20 and handling pools 22, all the pools being closed by a concrete cover 24. A slot 28 provided through the cover 24 above pool 16 provides access for remote handling equipment (not shown), the slot 28 connecting with a main feed slot 30 interconnecting feed slots 32, 34 of the pools 20, 22, respectively. Lateral storage slots 36, 38 branch off respectively from the slots 32, 34. Each slot 36 has a hinged closure member 40 and the other slots are also provided with, closure members, the space between the level of the shielding liquid and the underside of the cover 24 being connected to an exhaust system for the removal of fission product gases. Each slot 36 has three supports constituted by pairs of brackets 42 secured to the slot sides, the brackets having a seat 44 for receiving the upper end 50 of a suspension element 46. The suspension element 46 is inserted through the slot 28 and the fuel element or other component secured to the hook 52, the element 46 then being moved through the slots 30, 32 by the remote handling equipment and brought to a slot 36 where the element 46 is lowered upon one of the pairs of brackets 42. The remote handling equipment is then disconnected and returned for the transfer of another fuel element. To prevent the fuel elements being located in the pool 20 so that they achieve criticality alternate slots 36 have obstructed entrances 48 forming a gap which is too narrow to admit the intermediate portion 54 of an element 46. The slots 36 having entrances 48 may receive other suspension elements having portions 54 of reduced section and these suspension elements may carry components where are merely gamma radiation emitters. After a desired time the fuel elements or other components are moved to one of the pools 22.
Patent GB-1146854-A (GB)
Title: Extraction of flour and/or starch from tubers, roots or fruits
IPC: A23L19/10
Filed: 1966-05-09
Abstract: 1,146,854. Extracting flour and/or starch from tubers, roots &c. R. HEIN. 9 May, 1966 [18 May, 1965], No. 20523/66. Heading A2Q. [Also in Division C3] In extracting flour and/or starch from unpeeled parts of plants, such as cassava roots, Jerusalem artichoke roots, sweet potatoes, yams, arrowroot, colocasia roots, beetroots, turnips, carrots and bananas, the plant parts are mechanically reduced to coarse pieces, in the form of cubes, slices or shreds having a thickness between 0.5 and 2.0 cm., which are then rapidly dried, as by infra-red radiation and/or vacuum drying, and ground, or otherwise reduced, to yield particles having. a desired size which are finally sifted, or separated by classification, into particles of flour and/or starch and fibrous particles, e.g. peel or skin. The coarse pieces, before being dried, may be treated with a dilute acid, or a dilute mixture of acids, e.g. selected from: benzoic, formic, lactic, sulphuric and phosphoric acids; or with an aqueous solution of potassium chloride or sodium phosphate; or subjected to electric fields, electrophoresis, or ultra sonic waves, to coagulate any gums and mucilages, and inactivate any spoiling ferments or enzymes, which may be present. In treating water-soaked, unpeeled casssava roots in the apparatus shown in Figs. 1 and 2, the roots are cut into slices in a shredder 1, the slices are washed with water in a conventional washing drum 2, sorted on a table 4 to remove rotten and woody portions, cut into 0.8 to 1.0 cm. cubes in a conventional cutting machine 6, sprayed, if desired, with an aqueous solution of benzoic and formic acids (in which the ratio of benzoic to formic acid is 1 : 1 by weight) as the slices are being conveyed on a conveyer belt 7, then dried in a conventional belt-dryer 13, and finely ground in a drying and grinding mill 15, e.g. to yield particles 0.17Á in size. Fibrous matter is removed by a cyclone separator 16 and the resulting flour and/or starch is classified in a micro-classifier 17.
Patent GB-460026-A (GB)
Title: Improvements in spinning viscose
IPC: D01F2/06
Filed: 1935-07-19
Abstract: <PICT:0460026/IV/1> The process described in the parent Specification for the production of threads, films, and othershaped objects from viscose is modified by using the water or strongly diluted electrolyte solution from the precipitating bath for washing the coagulated viscose products.  As shown, highly ripened viscose is extruded into water or dilute electrolyte in a funnel spinning apparatus a.  The extension b of the funnel ends beneath the surface of the liquid in trough c into which the precipitating liquid flows at high speed.  The several filaments of the bundle issuing from the funnel are separated from each other by the eddies set up in the trough c.  The water is thus able to wash the filaments very thoroughly.  The thread is passed over rods d, e.  It is then further treated with sulphuric acid whereby the cellulose xanthate is decomposed to cellulose.  The thread may be stretched between trough c and the acidifying bath.  The coagulated and washed thread has only a low content of sulphurous impurities, and during conversion by acid there is less production of sulphur and hydrogen sulphide than usual. If desired a small proportion of acid or salt may be added to the precipitating liquid in trough c. Specification 456,061 is referred to.
Patent GB-986828-A (GB)
Title: Flare pack
Inventor: DONNELLY IVON ARTHUR FREDERIC
IPC: F42B39/00
Filed: 1962-05-29
Abstract: 986,828. Flare packs. HELICOPTER SALES Ltd. March 28, 1963 [May 29, 1962], No. 20593/62. Heading F3A. [Also in Division B8] A cartridge container comprises a pack body 1 having a number of side-by-side compartments 2, which are of a depth less than the overall depth of the body, and a pocket beneath the compartments to receive a cartridge projector 6, one end of a flexible cover strip 8 being fixed to one end 7 of the body and the other end of the strip having an extension which is detachably securable to the other end of the body. The strip 8 has a series of projections 9 which seat within the compartments 2 over each cartridge 3, and a hole 10 in the extension engages with a projection 11 on the body. A suitable cartridge projector 6 is described in Specification 986,827. The container is made of a waterproof material such as synthetic plastic or rubber, and the undersurface of the strip may be coated with a waterproof material to improve the seal.
Patent GB-1465536-A (GB)
Title: Method for separating large-sized film-like plastics
IPC: B29B11/00
Filed: 1974-05-09
Abstract: 1465536 Froth flotation MITSUI MINING & SMELTING CO Ltd 9 May 1974 [21 July 1973] 20620/74 Heading B2H Large-sized film-like plastics materialis separated from other film-like plastics or non- film like material by flotation in an aqueous liquid medium. Frothing agents e.g. pine oil, cresylic acid, eucalyptus. oil, camphor oil, propyl alcohol, amyl alcohol, methyl isobutyl carbinol, pyridine, or ortho-toluidine, collecting agents, e.g. oleic acid, stearic acid, palmitic acid or salts -thereof; and wetting agents e.g. sodium lignin sulphonate, calcium lignin sulphonate, tannic acid, a quebracho extract, gelatin, glue or saponin may be added to the aqueous medium. Gas bubbles, e.g. of air, oxygen, nitrogen, carbon dioxide or argon, are introduced into or generated within the aqueous medium by mechanical stirring, release of gases dissolved under pressure, vacuum evacuation to release dissolved gases, or electrolysis. Examples describe the separation of (a) film-like polypropylene from plate-like polyvinyl chloride, (b) soft polyvinylchloride from hard polyvinyl chloride (c)-film-like poyvinyl chloride from film-like polyethylene and (d) film-like polystyrene from granules of polyvinyl chloride. The aqueous medium may contain NaCl, MgCl 2 , MgBr 2 , MgSO 4  CaSO 4 , K 2 SO 4 , Na 2 SO 4 , Ca(HCO 3 ) 2  and NaHCO 3  and may be warmed.
Patent GB-875979-A (GB)
Title: Improvements in or relating to means for positioning electron beams in electron discharge devices
IPC: H01J23/087
Filed: 1960-06-13
Abstract: 875,979. Travelling wave tubes. TELEFUNKEN G.m.b.H. June 13, 1960 [June 11, 1959], No. 20635/60. Class 39(1). An electron beam is positioned in a travelling wave or other electron beam tube -by a permanently magnetised or magnetisable member disposed in the vicinity of means for producing a magnetic focusing field the member surrounding the tube envelope and being formed in a plurality of parts the boundaries between the parts being in the axial direction of the beam the parts being relatively movable axially and are movable together around the periphery of the envelope. As shown the positioning means comprises two semi-cylinders 5, 6, Fig. 2 surrounding the gun of the travelling wave tube which has a helix slow wave structure. The semicylinders are magnetised by the fringe field of the focusing coil surrounding the helix and centre the beam on the axis of the helix. The ferromagnetic member may be in more than two parts.
Patent GB-694183-A (GB)
Title: A heat-controlling attachment for pressure stoves
IPC: F24C15/00
Filed: 1950-08-21
Abstract: 694,183. Toasting apparatus. HOWKINS, J. C. Aug. 21, 1951 [Aug. 21, 1950], No. 20644/50. Class 28 (i). [Also in Group XI] A grill 23, carried by a vertical spindle 24 can be swung into position over a hit and miss heat regulating attachment for a pressure stove comprising two apertured plates 20, 15 of material of low heat conductivity. The lower plate 15 has a handle 17, and the grill 23 may be detachably mounted above the heat regulator.
Patent GB-329887-A (GB)
Title: Improvements in or relating to photoelectric cells
IPC: H01J40/04
Filed: 1929-07-05
Abstract: 329,887. Vereinigte Gl³hlampen und Electricitõts Akt.-Ges. Jan. 2, 1929, [Convention date]. Vacuum tubes.-A photo-electric cell in which the alkali-metal cathode is introduced electrolytically through the wall of the bulb has the two electrodes 1 and 1<1> for the anode filament 2, and an electrode 3 for the cathode carried on one stem. The stem and electrodes are sealed into the bulb and the connector 4 is fused into the wall 5 of the bulb, which is then exhausted. After capping, the cathode 18 is introduced electrolytically by dipping the bulb in a bath of, for example, iused sodium nitrite with a potential of 100 to 300 volts applied between the bath and the filament, the latter being heated by current supplied from the transformer 17. A holder 11 enables a supply of cooling air to be circulated around the top of the, bulb.
Patent GB-211076-A (GB)
Title: Improvements in bolts for doors and the like
IPC: E05C1/04
Filed: 1923-08-15
Abstract: 211,076. James, J. H. Aug. 15, 1928. Sliding bolts.-A boll 1 of sheet metal is stamped up to channel shape, the metal at one end 2 closing the channel and at the other end forming a knob 8 The bolt works within guide members 3, the ends of which pass' through slots in an attachment plate 4 and are bent into recesses 5 formed therein. A raised portion 6 of the attachment plate bears against the underside of the bolt and holds it frictionally .against the guides 3, and a raised stop 7 limits the inward movement of the bolt.
Patent GB-265473-A (GB)
Title: Improvements relating to silver plated eating utensils
IPC: A47G21/02
Filed: 1926-08-23
Abstract: 265,473. Bremer Silberwarenfabrik Akt.-Ges. Aug. 23, 1926. Addition to 256,514, [Class 128, Table articles &c.]. Spoons and forks.-The invention of the parent Specification is modified by forming the recesses in the flat blank, in which the reinforcing silver plates are soldered, by milling instead of by a pressing operation, the silver plate c being made so as to fit exactly the recess so formed. When the reinforced surface of the finished article, such as a spoon, is convex in shape, the plate c is made thick enough to allow a portion to project above the surface of the blank, Fig. 4, the plate taking the shape shown in Fig. 5 when the article is finished. To prevent blistering during soldering, a solder is used which can be applied without the use of borax by rolling a metallic sheet of solder on to the lower face of the silver plate.
Patent GB-1503275-A (GB)
Title: Electrical connector assemblies
IPC: G02B6/38
Filed: 1976-05-20
Abstract: 1503275 Two-part couplings AMP Inc 20 May 1976 [10 June 1975] 20795/76 Heading H2E A plug 12 of a plug and socket connector includes a housing 16 having through passages 18 containing female contacts 34, and a diaphragm 28 covers the front of the plug and has split portions 32 allowing complementary male contacts to pass therethrough. A complementary socket 14 has a forward tubular portion and a rearward portion having through passages in which are mounted male contacts 82 whose front ends extend into the tubular portion. Another diaphragm 104 with split portions 108 aligned with the contacts is supported by a backing plate 110 and moves backwards against the action of a spring 114 when pushed by the plug, the male contacts passing through the two diaphragms to enter the female contacts. The rear of the plug is sealed by a seal 40 whose front end is clamped against the rear of the housing 16 by a tubular member 54 which screws on to the housing. A clamp 60 (see Fig. 1, not shown) clamps the seal 40 to the cable, and a further portion 50 of the seal also engages the cable. A catch 24 is engaged by a latch 98 when the plug and socket are engaged, the latch 98 being mounted on a pivot pin 100 of limited strength such that it breaks under tension on the cables. A flange (102, Fig. 4, not shown) is provided to connect the socket to a bulkhead 68. In a modification (Fig. 6, not shown) the seal instead of being tubular comprises a block having through holes each tightly engaging an individual wire of the cable. In a further embodiment (Fig. 7, not shown), the tubular member 45 is dispensed with, the seal itself gripping the housing.
Patent GB-498055-A (GB)
Title: An improved safety grip, and locking device, for deck chairs
IPC: A47C4/08
Filed: 1937-07-28
Abstract: 498,055. Seat adjustments. BLACK, G. July 28, 1937, No. 20829. [Class 52 (ii)] A device for securing the cross member of the rear strut of a deck-chair in the notches of the rear legs comprises an angled plate A, Fig. 5, to which is secured a chain A<2> and a pivoted lever B. The plate A is screwed to the cross member, and the chain is passed round the rear leg and its free end hooked over a notch in the end of the lever B, which is then operated to tighten the chain. A locking lever C is then engaged in a recess in the lever B. In another form, a clip e, Fig. 9, to which a chain f<1> is secured is clamped to the rear strut h by means of a spring lever e<1>, the chain passed under the rear leg i, and a hook f<2> on the end of the chain engaged over the cross member ,j.
Patent GB-260218-A (GB)
Title: Improvements in or relating to rolling mill apparatus
IPC: B21B1/18
Filed: 1926-08-24
Abstract: 260,218. Morgan Construction Co., (Assignees of George, J. R, Sheperdson, J. W., and Bloom, A. T.). Oct. 22, 1925, [Convention date]. Rolling.-A billet from a heating furnace is passed through two sets of roughing roll trains 1 - - 4 and 5 - - 8 to a Y-transfer with skewed conveyer rolls 24, whence it is passed through a non- continuous intermediate mill 9, 10, 11 and then through stands of finishing rolls 12 - - 15, each stand of rolls in the intermediate train being driven faster than its predecessor. Any of the stands of the finishing rolls 12 - - 15 may be cut out and some may be so cut out as to allow the formation of free loops 32 in the material. Each group of rolls is driven by an adjustable speed motor, the motor 22 driving both the train 5 - - 8 and the non-continuous train 9, 10, 11. The rolls may have rows of differently shaped passes.