baber/WOPTO huggingface dataset:
Patent GB-646152-A (GB)
Title: Improvements in or relating to luminous electric signs
Inventor: COOK RONALD JOHN
IPC: H05B41/24
Filed: 1947-07-31
Abstract: 646,152. Electric supply systems. WELCH, L. July 31, 1947, No. 20796. [Class 38 (iv)] [Also in Groups XVIII and XL (a)] A series of luminous discharge tubes which are given a glow spreading along the tube upon application of high-frequency oscillations has means for switching the high-frequency oscillations from one tube to the next when the glow has filled the tube and applying a low-frequency supply, e.g. a transformer, to maintain the glow in the tube whilst the succeeding tube or tubes is, or are, operated. H.F. oscillations are generated by the valve 4, the screen-grid of which is connected through resistance 20, triode 13 and resistance 18 to a condenser 17 which is periodically discharged by thyratron 19, so that the discharge tubes periodically receive a build-up from the oscillator to give a glow which spreads slowly along each tube as described in Specification 595,088, [Group XVIII]. The apparatus for supplying the tubes in the series S1, S2, S3 with low-frequency current whilst the high-frequency source is applied to succeeding tubes comprises a number of transformers 22 which are switched in under relay action. The source 25 in each lamp circuit is connected to a bridge circuit comprising the low-frequency resonance circuit of transformer 22, resistance 26 and voltage divider 26a, the relay 27 being connected across the bridge. When the glow fills tube S1, the bridge is unbalanced and operates the relay 27 to close contacts 31, 32, 33. Closure of contact 32 operates relay 29 which operates switches 28, 30, the former switching the H.F. source to the next tube S2 whilst switch 30 triggers off the thyratron 19 to discharge condenser 17 and reset the time base to allow the glow to spread along tube S2. Simultaneously closure of switch 31 has short-circuited resistance 26 and applied the full low-frequency voltage to tube S1 to maintain its glow. The switch 33 is designed so that when the glow of the last tube is complete, it will operate a relay 34 which after appropriate time intervals disconnects the lowfrequency supply and restarts the cycle of operation.
Patent GB-499770-A (GB)
Title: Improvements in or relating to the production of boron halides
IPC: C01B35/06
Filed: 1937-07-27
Abstract: In recovering a boron halide from a complex consisting of the boron halide and water, the complex is reacted with an alkaline earth metal halide, a sodium halide, or a compound of an alkaline earth metal or sodium which reacts with the boron halide constituent to form the corresponding metal halide, water is removed, e.g. by distillation, to leave a boron halide-metal halide complex, and thereafter the latter is heated to separate the boron halide.  Suitable alkaline earth metal halides are calcium fluoride and chloride, barium chloride and analogous alkaline earth metal fluorides, chlorides, bromides and iodides. Hydrated boron fluoride may be prepared by reacting anhydrous hydrofluoric acid with solid orthoboric acid, boric anhydrides or borates; calcium fluoride may be added to the product whereby water is liberated and is removed by distillation at 110 DEG  C., the boron fluoride being thereafter driven off in an anhydrous form at a higher temperature, say 170-500 DEG  C., usually 250 DEG  C., leaving calcium fluoride as the residue.  If desired, the condensate, obtained by heating the mixture containing water, boron fluoride and the metal halide, which usually contains a small amount of boron fluoride, can be distilled to drive off most of the water leaving a residue containing substantially all the boron fluoride present in the condensate.  The Specification as open to inspection under Sect. 91 comprises also the employment of other metal halides such as zinc fluoride, aluminium fluoride, aluminium chloride cuprous chloride, lead chloride, iron chloride, tin chloride, and analogous metal fluorides, chlorides, bromides and iodides.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1072669-A (GB)
Title: Liquid fuel burner
IPC: F23D11/00
Filed: 1966-05-11
Abstract: 1,072,669. Liquid fuel combustion chambers; burners. I. K€RCHER, [trading as ALFRED K€RCHER]. May 11, 1966 [May 14, 1965], No. 20854/66. Headings F4B and F4T. [Also in Division F1] A liquid fuel burner includes a nozzle 18 which discharges a conical spray of fuel into a pre-combustion chamber 12 having a conical easing 14 of a similar conical angle to that of the spray and an air inlet formed by a widening portion 14a joined to a flat collar 14b parallel to and spaced from the top of the burner housing 11, the fuel spray impinging substantially perpendicularly on to a conical baffle 15a formed by an inwardly directed funnel-shaped portion of the casing 15 of the main combustion chamber 13 and further air enters between the conical parts 14, 15a. Openings 14c are stamped in casing 14 so that the stamped-out portions form tongues inclined to the inner surface of the casing to give the air a whirling motion. In a modification the air inlet between casing 14 and main chamber 13 is formed by a self-supporting baffle (22) having openings (22c) and a further annular passage is provided with a cylindrical wall (22a) having openings (22b).
Patent GB-597347-A (GB)
Title: Improvements in or relating to picture post cards
IPC: B42D15/04
Filed: 1945-08-14
Abstract: 597,347. Picture or letter cards. LOWER, A. S. V. Aug. 14, 1945, No. 20907. [Classes 11 and 146 (ii)] A combined letter and picture card is provided with a picture on the outside face of one part a and an incomplete replica g thereof on the inner face of the other part b which can be coloured or completed by the recipient to agree with the original, the card being weakened, e.g., by perforations, along, or adjacent and parallel to, the fold line c to facilitate severance of the parts. As shown, lines of perforations m, n and k are provided parallel to the fold line c and around the edges. The free edges of at least one part are provided with adhesive i, and a gap i' is left in the adhesive strip for the insertion of a knife to open the card.
Patent GB-336279-A (GB)
Title: Improvements in and relating to the production of alimentary salt
IPC: A23L27/40
Filed: 1929-07-08
Abstract: 336,279. Woog, P. Feb. 18, 1929, [Convention date]. Addition to 319,203. Table salt preparations.-An alimentary salt preparation is obtained by adding solutions containing magnesium salts to solid sodium chloride, the proportion of magnesium added being equivalent to that present in the salt derived from sea water, the wet mixture obtained being subjected to dehydration according to the process of the parent Specification. Organic salts of magnesium may be employed. A proportion of the magnesium may be added in the form of insoluble magnesium salts in solid state, or finely divided or colloidal magnesium. The hygroscopic nature of the product may be overcome in known manner by using, as the magnesium salt, the partially hydrated carbonate which may be formed by addition to the wet mixture of alkali carbonate or bicarbonate. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the addition in the process of the parent Specification of an alkali carbonate or bicarbonate to the sea water before dehydration to render the product non- hygroscopic. The salt preparations may also be obtained bv addition of the separate constituents in the solid state and grinding the mixture.
Patent GB-1151373-A (GB)
Title: Improvements in and relating to Electrochemical Cell Arrangements
Inventor: GILLESPIE PETER JAMES
IPC: H01M8/24
Filed: 1965-05-18
Abstract: 1,151,373. Electrochemical cells. ENERGY CONVERSION Ltd. 16 May, 1966 [18 May, 1965], No. 20972/65. Heading H1B. A gas distribution arrangement for an electrode of an electromcheical gaseous cell in which the gas is to be fed to and from the electrode surface through sets of alternate parallel passages comprises the said passages formed in a distributer member, one face of which is adapted to be arranged across the electrode surface, and manifolds for leading gas to the or at least one set of alternate passages and for leading gas from the or at least one other set of alternate passages are formed in a manifold member arranged to co-operate with the opposite face of the distributer member. The construction is suitable for use as a separator between cells arranged in series, provision being made to feed e.g. hydrogen or hydrogen-containing gas, to one side and oxygen, or air, to the other side of each separator. Fig. 1 shows an exploded view of the members involved, the 5 members of the unit being provided with matching air inlet ports 1, 2 and 3 and air outlet ports 4, 5, 6 and 7 and with a hydrogen inlet port 8 and hydrogen outlet ports 9 and 10. The end members 11 and 15 are of metal resistant to electrolyte attack while the two manifold members 12 and 14 and the separator 13 are of plastic material. The member 11 is intended to be presented to the air electrode of a cell and the distributer inlet slots are indicated at 16 and the exhaust slots at 17 overlapping the manifold holes 18 and 19 respectively, which manifold holes are shaped to embrace the respective air inlet ports 1, 2 and 3 and the air outlet ports 4, 5, 6 and 7 respectively. The shaded portions of members 11 and 15 may function as cooling fins. In practice, the five members are bonded together in gas-tight fashion, air and hydrogen supplies then being connected respectively to the end members with inset lead holes lining up with the ports 1, 2, 3 and 8 respectively, and exhaust connections being made to lead holes lining up with ports 4 to 7, 9 and 10 respectively.
Patent GB-295127-A (GB)
Title: Improvements in silencers for the exhaust of internal combustion engines or for fire arms
IPC: F01N1/12
Filed: 1927-08-09
Abstract: 295,127. Childs, W. Aug. 9, 1927. Sound of discharge, modifying .-A silencer applicable to internal-combustion engines and firearms comprises an attachment whereby gases from the exhaust pipe b<1> are passed through a pipe b into an expansion chamber a and are dis. charged to the atmosphere through a preferably tapered outlet c. The chamber, for a portion of its length preferably adjacent the inlet, is provided with an interior lining d of sound-deadening material, and beyond the lining is a helical plate e with a central unobstructed passage e'. Upon entering the chamber a, the exhaust gases are mixed with air caused to flow through the annular space between the pipe b and a surrounding pipe f by the speed of the vehicle. The pipe f is supported by a ring g with lugs g'. In a modified construction, two coaxial annular air inlet passages are provided and the inflow of air is regulated by hit-and-miss disc valves formed by the supporting rings. Resonance from the helical plate e may be reduced by studding it with rivets.
Patent GB-746190-A (GB)
Title: Improvements in or relating to flowmeters
IPC: G01F1/115
Filed: 1953-07-29
Abstract: 746,190. Fluid flow meters. NATIONAAL LUCHTVAARTLABORATORIUM. July 29, 1953 [Aug. 2, 1952], No. 21098/53. Class 40(1) A flowmeter comprises a rotor driven at a speed proportional to the flow and carrying an armature co-operating with a fixed L- or U-shaped magnetic core to vary the impedance of a coil mounted thereon periodically proportionally to the speed. This variation is used to modulate a carrier, the modulation being measured to indicate flow. As shown, for measuring consumption or rate of flow of fluid, in a pipe 1-3, an inset 2 in the pipe supports the parts 6, 17 of the measuring device by streamlined radial arms 7, 18. A shaft 12 rotated by the fluid flow through vanes 15 carries a star-shaped ferromagnetic armature 16 (Fig. 3, not shown) inset in the face of the non-magnetic rotor 15 which co-operates with the L-shaped core 22 fixed to the part 17. The core 22 carries a coil 23 excited by high frequency A.C., the amplitude of which is modulated at a frequency proportional to shaft speed and hence to the rate of fluid' flow. A further coil 24 of high resistancetemperature co-efficient compensates for temperature variations of the fluid, e.g., as disclosed in Specification 746,191 when the flow is totalized and indicated in weight units. Specification 548,742 also is referred to.
Patent GB-280475-A (GB)
Title: Ripping knife
IPC: A41H31/00
Filed: 1927-08-11
Abstract: 280,475. Stiller, (nÚe Krebs), H. Aug. 11, 1927. Pencil and like holders; knife holders.-A knife for ripping seams without cutting the fabric comprises a lancet-like pointed blade 1 clamped between two holder plates 2 so that about a millimetre of the blade edge projects, one plate having a pin 3 which passes through registering holes in the blade and other plate. The parts are clamped together by a screw 4 with milled head. A tubular handle 7 is provided in which the blade and holders may be inserted with the blade sheathed or exposed for use, the stem of the screw 4 entering a slot 8 so that tightening the screw both clamps the blade and holder-plates together and secures them in the handle. At the other end of the handle a reversible member 9 is provided, one end of which carries a piece of tailor's chalk and the other a tracing wheel 10.
Patent GB-339660-A (GB)
Title: An improved process for facilitating the starting of internal combustion engines
IPC: F02N99/00
Filed: 1929-07-10
Abstract: 339,660. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 10, 1929. Oils, recovering and purifying; motor spirit.- Neutral organic liquids which have been solidified by action therein of ammonia or other base on abietic or pimaric acid as described in Specification 340,575, [Group III], are recovered by pressing the solid against a filter which may be combined with a purifier for the liquid. Filters specified are a perforated plate or 'a wire sieve covered by close-meshed filter material, porous plates of sintered glass, loose materials such as sand, wadding, asbestos, sawdust, or glass-wool, shaped articles of porous metals or oxides such as are described in Specification 339,645, [Class 46, Filtering &c.], Swedish spongy iron, porous metals obtained by melting out separate components of alloys, and strongly compressed comminuted metals or metal chips or metal wool e.g. of lead, tin, aluminium, or iron, or mixtures e.g. of lead wool and fine iron chips ; layers of different metals may be matted together, e.g. by pressing. Materials retaining water, ammonia, or other impurities may be embedded or deposited in the filter. Materials specified are silica, calcium chloride, boric acid, acid salts, and metal oxide gels. For example, the filter may be impregnated with water glass and treated with acid, or silica sol may be drawn therein and dried, or the metal oxide gels may be pressed into the filters. In an example, a foam produced as described in Specification 339,645, [Class 46, Filtering &c.], from ground ferroso-ferric oxide and water containing 1 per cent of sodium isopropyl-naphthalene sulphonate, is formed into a rod, dried, and reduced and slightly sintered at about 1000‹ C. It is then impregnated with a silica sol containing 10 grams of Si O2 per litre, dried, and sawn into discs 3-5 m.m. thick; Conveniently the filter is arranged at the exit of the container of the solidified cyclo-hexane or other liquid, e.g. of a lead or tin tube from which the liquid may be pressed to fill a pocket-lighter or to impregnate cotton wool which is placed in the suction tuba of a motor to facilitate starting. Or, to facilitate starting, the suction tube E of an engine F may be fitted with a pipe J connected to a press cylinder K adapted to receive a. cartridge A of readily volatile combustible solidified as described in Specification 340,575, [Group III], and provided with a sleve B and a push plate C. On screwing down the spindle H liquid exudes from the cartridge e.g. pentane, ether, acetone, or hydrocarbons containing large proportions of constituents boiling below 80‹ C. and even as low as 20‹ C. and passes to the. suction pipe. When the engine is started the pressure on the cartridge is released.
Patent GB-633119-A (GB)
Title: Improvements in and relating to methods of recovering silver from residues containing the same
IPC: C01G5/00
Filed: 1947-08-05
Abstract: A residue comprising silicon and silver and/or silver halide, e.g. chloride, which has been employed in the manufacture of organo-substituted halogeno silanes (see Group IV (b)), is heated in a non-oxidizing atmosphere, e.g. hydrogen or nitrogen at above 600 DEG  C. up to 1500 DEG  C., and thereupon extracted with nitric acid of sp. gr. 1.1-1.5 at say 200 DEG  C.  Silver chloride may be precipitated from the silver nitrate extract by hydrogen chloride or hydrochloric acid.  From 2 to 50 per cent or more of silver may be present in the residue treated.  Specification 575,667, [Group IV], also is referred to.ALSO:Relates to the recovery of silver (see Group III) from a residue of contact material employed in the production of organo-substituted halogenosilanes by the passage thereover at an elevated temperature, e.g. above 250 DEG  C., of a hydrocarbon halide, e.g. methyl chloride or bromide, ethyl chloride, chloro- or bromobenzene, benzyl or tolyl chloride, &c.  The contact mass consists of a mixture of silicon and silver, as in Specification 575,669, [Group III], or of silicon with silver and silver halide, or with silver halide alone.  From 2 to 50 per cent or more of silver may be present in the contact material.  Specification 575,667 also is referred to.
Patent GB-1146529-A (GB)
Title: Twin basket strainer
IPC: B01D35/12
Filed: 1966-05-13
Abstract: 1,146,529. Twin basket strainers. S. P. KINNEY ENG., Inc. 13 May, 1966 [8 June, 1965], No. 21264/66. Heading BID. A twin basket strainer comprises the following features:- (a) two spaced vertical strainer cylinders 2 each receiving a basket strainer 46 supported by an annulus 44 within the cylinder; (b) an inlet duct 15 extending laterally between the upper end of each strainer cylinder 2, wholly above the basket therein, and a first horizontal valve cylinder 16; (c) an outlet duct 18 extending laterally between the lower end of each strainer cylinder 2 and a second horizontal valve cylinder 19; (d) a flange 45 on each basket strainer 46 seated on the annulus 44 associated therewith so that the basket strainer is spaced from the bottom and sidewall of the cylinder 2 receiving it; (e) a cover 4 on each strainer cylinder 2, the cover being removable to afford access to the basket strainer in that cylinder; (f) means, such as a flat strip handle 47, for holding each flange removably supported on its annulus; (g) a liquid inlet opening 17 in the first valve cylinder 16 between the two inlet ducts 15; (h) a liquid outlet opening 20 in the second valve cylinder 19 between the outlet ducts 18; and (i) three-position valve means 21 to 30 in each of the valve cylinders, which means are adjustable to allow liquid to pass selectively through both or either of the strainer cylinders 2.
Patent GB-802941-A (GB)
Title: Lubricating composition
Inventor: TYSON JOHN TYSON
IPC: C10M173/00
Filed: 1956-07-10
Abstract: A water-in-oil emulsion lubricant comprises urea, or an alkyl derivative thereof, a major proportion of a lubricating oil and a minor proportion of water and an emulsifying agent.  The oil is preferably a mineral oil of 30-150 SUS/210 DEG  F., but synthetic oils may be used.  The alkyl derivatives of urea which may be used are the N-monoalkyl and N-dialkyl ureas of general formula R-NH-CO-NH-R1, where R and R1 are H or C1-3 alkyl groups.  The urea or alkyl urea should be dispersed in the aqueous phase.  The compositions should contain less than 10 per cent of the emulsifying agent, e.g. the condensation products of fatty alcohols, fatty acids or esters with glycols and alkylene oxides such as ethylene glycol and ethylene oxide, and/or the partial fatty esters of polyhydric alcohols, e.g. sorbitol or glyceryl mono-oleate.  Other emulsifying agents mentioned are metal soaps, petroleum sulphonates, e.g. calcium or sodium sulphonates, and alkyl salicylates and salts thereof. Other optional ingredients are sulphurized sperm oil, antioxidants, colloidal clays, alkaline earth derivatives of phenol sulphides, and oiliness agents, e.g. polar organic compounds containing carboxyl groups, nitrogen or sulphur.
Patent GB-462119-A (GB)
Title: Improvements relating to tool holders
IPC: B21D28/34
Filed: 1935-07-27
Abstract: 462,119. Tool holders. SHEARMAN, C. H. HOWLAND. July 27, 1935, No. 21431. Convention date, July 27, 1934. [Class 83 (iv)] A ram slidable in guides 21, Fig. 2, has a rectangular hole 24, Fig. 3, for the square shank 25 of a tool-holder 26. A tapered transverse hole 28 in the tool head and toolholder shank 25 has a semicylindrical upper surface and receives a correspondingly shaped key 31 which when driven home forces a flange 27 firmly into a socket in the tool-head. To dismantle the tool-holder the key is driven out and a device 36, Fig. 7, inserted with its eccentric shaped end 37 in the hole. On rotation of the device the tool-holder is loosened from its socket. A shell 34 surrounding the tool carrier is provided with locating means 87 for determining the part of the work to be operated on, said means comprising knife or wedge shaped mounted at right-angles. Specification 462,117 is referred to.
Patent GB-1187532-A (GB)
Title: Yarn Texturing apparatus and method
IPC: D02G1/02
Filed: 1968-05-07
Abstract: 1,187,532. Processing yarn. TURBO MACHINE CO. 7 May, 1968 [8 May, 1967], No. 21449/68. Heading - D1F. For producing crimping therein, multi-filament yarn is pulled, with the filaments substantially flat and parallel, through first contact heater means, the filaments are assembled into a twisted yarn, and the latter is pulled through second contact heater means. Untwisted multi-filament thermoplastic yarns 12, 13 pass from respective spools 10, 11 through pre-twister means 14, such as described in Specification 1007813, and are then led by pulleys 15 and a guide 16 to tensioning means 17, the yarns then passing via a pulley 19 downwards in flat, parallel formation to engagement with the surface of an arcuate groove 31 formed longitudinally in an elongated, vertically-disposed hollow body 30 heated by steam via a pipe 33. From groove 31 the yarns pass through opposed crotches of crossed rollers 81, 82 freely journalled in a fixed support 83, whereby the yarns become progressively assembled into a twisted yarn 18 which passes upwardly into engagement with the surface of a longitudinal groove 32 formed in body 30. The twisted yarn is guided by rollers 42, 43, 43 to a descending direction, the twist being set by cooling, either natural or artificial, at this stage. The crimped component yarns 12, 13 are then separated over fixed pins 61, 62 by traction from pairs of conical rollers 65, 66 and are wound on takeup rollers 73, 74. A tensioner 120 may be inserted between groove 31 and the rollers 81, 82 to increase the tension in the twisted yarn. In a modification only one multi-filament yarn is treated, the pre-twister means 14 and the separating pins 61, 62 then being omitted, and twisting means 121 being located immediately in advance of the relevant traction rollers.