baber/WOPTO huggingface dataset:
Patent GB-575250-A (GB)
Title: Improvements relating to thermionic amplifying and generating circuits
IPC: H03K4/20
Filed: 1942-02-17
Abstract: 575,250. Valve amplifying and generating circuits. COSSOR, Ltd., A. C., and WHITELEY, J. W. Feb. 17, 1942, No. 2100. [Class 40 (v)] An integrating or differentiating circuit comprises a degenerative feedback amplifier having a differentiating or integrating, network in the feedback path so arranged that the voltage fed back is nearly equal in amplitude to the applied voltage. In this way, the voltage fed back represents either the rate of change in the output voltage or the time integral of the output voltage. Fig. 1 shows a linear voltage sweep generator having a degenerative feedback consisting of a differentiating time constant network 4, 5 so that a voltage proportional to the rate of change in anode voltage is fed to the grid in opposition to a constant source. The voltage sweep is initiated when switch 6 is opened, the condenser 5 then being charged and subsequently discharged through the valve reducing the anode voltage and producing a voltage across resistance 4 slightly greater than the opposing positive voltage applied at X. The voltage across condenser 5 falls at a constant rate until a low limiting value is reached when operation of the switch 6 recharges the condenser and causes the operation to be repeated. In a modification, Fig. 2 (not shown), the point X is connected to a point of negative potential and the condenser 5 is charged during the sweep in which case an inverted diode is connected to the control grid to discharge the condenser when switch 6 is closed. To increase the accuracy of differentiation, a multi-valve amplifier may be used, Fig. 3 (not shown), with the source connected to the input through a resistance which with an inductance in the feedback path forms the integrating time-constant network. Fig. 4 shows an integrating amplifier with a differentiating time-constant network 4, 5 and further compensation by the use of cathode follower 11 which applies potential variations to the input terminal 14 so that the potential difference across resistance 4 nearly equals the potential applied to the input terminals 13, 14. A generator similar to that shown in Fig. 1 may have internal means of re-establishing the discharge of the condenser 5 as shown in Fig. 5. A pentode valve is used with the screen and suppressor grids coupled by condenser 8 and resistances 9, 10 included in the supply leads so that condenser 5 is charged by the cutting off of the anode current through the anode load resistance 2 and by grid current. The circuit may be arranged to be self-running or be synchronized by a tripping pulse applied through a condenser to the suppressor grid. Alternatively, the switch 6 may be replaced by a mechanically driven commutator or an electrical discharge circuit, using a gas discharge triode or hard valves.
Patent GB-1490982-A (GB)
Title: Pouring of molten metals
IPC: B22D11/10
Filed: 1974-01-16
Abstract: 1490982 Gate valves for metallurgical vessels FLOGATES Ltd 14 Jan 1975 [16 Jan 1974] 02130/74 Heading F4B In a sliding gate valve for a ladle, tundish &c. comprising a sliding plate 12 having an apertured nozzle mounting in the form of a metal tray 18 attached to its underside and a depending discharge nozzle 10 comprising a refractory tube 21 cemented into a metal sleeve 23, releasable securing means are provided to permit the nozzle tube 21 to be detached from the plate 12 for replacement when worn. As shown the nozzle 10 is clamped within an attachment ring 30 welded to a circular lip 31 of the tray 18. The attachment ring 30, which is axially slotted at 36, is held tightly encircling the sleeve 23 by a buckle 32, e.g. a "Jubilee clip" (Registered Trade Mark). Mating ribs or recesses 33, 34 formed respectively on the ring 30 and sleeve 23 serve to positively locate the nozzle 10 with respect to the plate 12 so that the upper end thereof abuts the underside of the plate 12. The sliding plate 12 comprises an insulating plate 16 secured by cement 17 to the underside of a main refractory portion 13. In a second embodiment (Fig. 2, not shown) the discharge nozzle (11) is releasably secured to the plate by means of screws or bolts (40) passing through apertures in an outwardly directed flange (40) encircling the upper end of the metal sleeve. In a third embodiment (Fig. 3, not shown) the releasable connection between the nozzle mounting (18) and the nozzle is provided by a pair of screw-threaded metal rings (52, 53) one of which is welded to the nozzle sleeve (23) and the other to the underside of the metal tray (18). In a fourth embodiment (Fig. 4, not shown) a bayonet-type coupling (62) is used to releasably lock the nozzle tube (21) to the metal sleeve (23). The end of the sleeve remote from the metal tray (18) has a plurality of slots (61) which form one half of the bayonet coupling, the other half being formed by a ring (63) provided with pins (64) to engage the slots (61) and urge the nozzle tube firmly against the sliding plate (12). A frangible cement (22) is used between the metal sleeve (23) and the nozzle tube (21).
Patent GB-377899-A (GB)
Title: Improvements in or relating to vehicle wheels
IPC: B60B1/02
Filed: 1932-01-25
Abstract: 377,899. Vehicle wheels. BUDD WHEEL CO., 2500, Hunting Park Avenue, Philadelphia, U.S.A.-(Assignees of Eksergian, C. L. ; 12141, Charlevoix Avenue, Detroit, Michigan, U.S.A.) Jan. 25, 1932, No. 2206. Convention date, Feb. 7, 1931. [Class 144 (i).] In a wire wheel having the spokes of the series crossed between the hub and rim, the inner or outer ends of these spokes are secured to axially-spaced flanges on the hub or rim. In the form shown in Fig. 1, the inner spokes are line-welded to axially, and radially, spaced flanges 16, 20, the inner ends of the outer spokes 12 being welded alternately to the opposite sides of the hub-flange 22. In the modification shown in Fig. 3, the spokeconnections are all concealed within the hub. In this form, the attachment-flange 25 has pressed-up portions 31 welded to the hub-barrel 10<1>.
Patent GB-1286034-A (GB)
Title: Manufacture of aldehydes and alcohols
IPC: C07C29/158
Filed: 1970-01-16
Abstract: 1286034 Oxo process BADISCHE ANILIN- & SODA-FABRIK AG 16 Jan 1970 [18 Jan 1969] 2221/70 Heading C2C An aldehyde and an alcohol are prepared by reacting an olefinically unsaturated compound with carbon monoxide and hydrogen at an elevated temperature and pressure in the presence of, as catalyst, a carbonyl complex of cobalt or rhodium modified by a diamino diphenyl alkane having no hydrogen atoms attached to the nitrogen atom. The diamino diphenyl alkane is preferably of the formula wherein R 1  and R 2  are alkyl radicals of 1 to 4 carbon atoms, R 3  is an alkylene or alkylidene radical of 1 to 3 carbon atoms, X and Y are hydrogen or methyl groups and n is 0 or 1. Suitable specified unsaturated compounds are olefins, cyclohexene, styrene, propenyl benzene, allyl alcohol, and allyl methyl ether.
Patent GB-563460-A (GB)
Title: Improvements relating to the manufacture of charcoal
IPC: C10B53/02
Filed: 1943-01-05
Abstract: 563,460. Carbonizing wood and the like. HOLLER, O. Jan. 5, 1943, No. 2227/44. Divided out of 563,906, [Group IV]. [Class 55 (i)] In the production of charcoal from wood, peat or similar substances, the carbonization is effected continuously in a vertical oven on the principle that only a small amount of heat is supplied for starting the decomposition of the wood &c. and for making up losses by radiation, the heat for the carbonizing being in the main provided by the exothermic reaction. The combustible gas used is supplied with a deficiency of air, and produces a reducing flame of low temperature ( 700‹ to 800‹ C.). Gas is fed through nozzles 6 from a supply pipe 7 and air through nozzles 8 extending from pipes 9 and 10, baffles 11, 12 being provided to prevent direct contact of the flame with the charcoal. A shaft 13 with hood 14 distributes the heating gases into the body of the charge. Distillates are withdrawn through outlet 39. The gases used as fuel may be those obtained from a bye-product plant. The wood is previously dried in a column 26 as described in Specification .563,461 and is delivered into the carbonizing chamber through two hinged flaps 37, 30 which constitute a gas lock. The apparatus may be made in sections so as to be transportable, the sections being joined at spigot and socket joints 27, 70, 64. The charcoal is discharged through shoots 5 which extend from between radial partitions 4.
Patent GB-655063-A (GB)
Title: Improved method of and apparatus for dehydrating wood and wood products
IPC: B27K5/00
Filed: 1948-01-26
Abstract: 655,063. Treating wood. HUDSON, M. S. Jan. 26, 1948, No. 2273. Convention date, Feb. 16, 1942. Addition to 655,062. [Class 140] [Also in Group XIII] In a modification of the method of drying wood described in the parent Specification the condensed drying medium is returned to the drying chamber in vapour phase. The wood is placed in a drying chamber A supplied with vapour from an evaporator B through a manifold C and line LV-1. The chamber is connected to a second manifold D communicating through line LV-2 with a dephlegmator or partial condenser E which is connected to the evaporator B. Water-free organic drying medium may pass directly from the bottom section of the dephlegmator to the evaporator or to a condensate return tank G through lines LL-1 or LL-18. Heat is supplied to the evaporator through heating coils K heated by steam, oil or other means through heat absorber M. The returned condensate may be preheated by passage through the hot tube section E<SP>1</SP> of the dephlegmator E. The temperature in the drying chamber may be controlled by means of a thermostatic device having a bulb a<SP>1</SP> in the chamber and controlling the heat absorber M. The dephlegmator E is connected to a condenser N and funnel H which separates the water from the drying medium, the latter being delivered to the evaporator or to the tank G. The term wood includes plywood, pulps, wood powders, &c. and treatments include plasticizing, dyeing, fire-proofing, pulping and impregnation. Impregnation, e.g. with creosote, may be effected after the drying cycle, in the same apparatus.
Patent GB-1478445-A (GB)
Title: Nickel oxide electric current producing cell and method of making the same
IPC: H01M6/12
Filed: 1976-01-21
Abstract: 1478445 Nickel oxide coatings S RUBEN 21 Jan 1976 [21 Jan 1975] 2287/76 Heading C7B [Also in Division H1] A cathode for an electric cell (Division H1) comprises a metal, e.g. Ni, Fe or Ti, screen coated with a carbon-silica gel on which is electrolytically deposited a coating of e.g. Ni or Ni-Co oxide. In an example a screen is made the cathode in molten nickel nitrate electrolyte, Ni anodes placed on either side, and nickel hydroxide is deposited. The molten electrolyte may also contain 10% cobalt nitrate. The cathode is then made the anode in a 20% lithium hydroxide solution to convert the nickel oxide to a higher oxide.
Patent GB-574619-A (GB)
Title: Improvements in and relating to fluid-sealing glands for rotating shafts
IPC: F16J15/36
Filed: 1944-02-09
Abstract: 574,619. Packing glands. WHITAKER, J. H. Feb. 9, 1944, No. 2388. [Class 122 (v)] A packing gland comprises a flanged rubber sleeve interposed to form a seal between a shaft 8 and rubbing ring 9 contact between mating surfaces being maintained by garter spring 11 in an annular groove 3 and gland spring 13 pressing against a collar 16 bearing on the sealing member 2 and fitting over the carbon rubbing ring 9. The centre of the sleeve 1a which is slightly tapered and/or the centre portion of the annular ring at the flanged end may be of reduced thickness, and may be corrugated to enhance resilience.
Patent GB-779097-A (GB)
Title: Improvements in and relating to an obturating device for the air intake of a gas turbine engine
IPC: F02C7/05
Filed: 1955-01-27
Abstract: 779,097. Aircraft engine cowlings. SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU NORD. Jan. 27, 1955 [Nov. 23, 1954], No. 2457/55. Class 4. [Also in Groups XXVI and XXIX] The air intake of a gas turbine engine is opened or closed by means of a partspherical valve, arranged in a cowling, forming an extension of the engine cowling and having a circular opening at its forward end, the part-spherical valve having a diametrically extending air passage and being movable between a position in which the air passage is in alignment with the circular opening and engine inlet and a position in which the opening is covered by a part of the part-spherical wall of the valve. The air intake comprises a cowling 1 which is detachably secured by screws 7 to the engine cowling a and has at its forward end a circular opening 2. The cowling is reinforced at its rear end by two annular transverse walls 4, 5, carrying a tube 11 which is connected by a collar 12 to the inlet duct of the engine. Two plates 9 are connected to the wall 5 and to the cowling 1 adjacent the opening 2. A partspherical valve 13 comprising an outer partspherical wall 14 connected to a tube 16, is pivoted to the plates 9 so as to rotate about an axis through the centre 0. A stop 25 limits the angular movement of the valve member 13. When the abutment 17 is against the stop 25, the tube 16 is in alignment with the opening 2 and the inlet c of the engine. When the abutment 27 is against the stop 25 the opening 2 is closed by the wall 14 of the valve member 13. The valve member 13 is actuated by a jack 29, pivoted to the wall 5, through an arm 34 pivoted to one of the walls 9 and through a link 36 connected to an arm 37 keyed to the valve journal 23. The arrangement is such that the torque on the valve is greatest at the start of opening of the valve so as to break any ice that may be formed on the edge of the opening 2 when the valve is in the closed position.
Patent GB-102645-A (GB)
Title: Arc Light Carbons and Methods of Manufacturing the Same.
Inventor: PIKE ROBERT DICKSON
IPC: H05B31/16
Filed: 1916-02-21
Abstract: 102,645. Pike, R. D. Feb. 21, 1916. Carbon.-Lamp-black refuse from the manufacture of oil gas is used for making arc-lamp electrodes. The crude material may first be milled with hot water to agglomerate the tar into pellets, which are screened out. Soluble mineral matter is then removed by repeated washing. The residue is roasted, with agitation, at 1000‹ F. for about three hours. It is then further heated in a muffle to 1800-2000‹ F. for eighteen hours. After cooling, it is finely ground and passed through separators to arrest iron particles. A substance such as boracic acid, acting as a flux for the residual mineral matter, is added, and the mixture, together with a little coal tar, is agglomerated by rollers and compressed into cylindrical cakes. From these are made the carbon pencils, which are baked in the usual way.
Patent GB-881453-A (GB)
Title: Improved furnace for the fused salt electrolysis of aluminium
IPC: C25C3/08
Filed: 1958-01-27
Abstract: 881,453. Fused-electrolyte apparatus. MONTECATINI SOC. GENERALE PER L'lNDUSTRIA MINERARIA E CHIMICA, and DE VARDA G. Jan. 27, 1958 [Jan. 31, 1957], No. 2614/58. Class 41. A furnace for the continuous production of aluminium by electrolysis employing consumable anodes 104 has a passageway 103 extending upwardly from a collecting chamber at the bottom of the furnace for aluminium 106, the lower end of the passageway 103 being in communication with the aluminium 106, e.g. through a hole 108, and having near its upper end an outlet 110 through which aluminium is automatically and continuously discharged into a receptacle 112 which is separate from the collecting chamber. Aluminium 111 in the receptacle 112 can thus be removed at any time without disturbing the electrolysis process. The passageway 103 is formed between two refractory walls 107, 109. Alumina is fed continuously to the bath 114 to keep the level constant, and the spacing 105 between the anodes 104 and the molten metal 106 is kept constant by adjusting the position of the anodes. It is stated that this may be done automatically. The invention is applicable to multi-cell furnaces, e.g. of the necklace type described in Specification 814,754 in which the bath is circulated by passages 10, Fig. 4, through all the cells which employ bipolar electrodes 4. Aluminium 11 collects in a lower chamber 21 formed at the bottom of each cell between refractory supports for the electrodes 4. Each chamber 21 communicates through a hole 12 in a wall 13 with a pocket 28 leading to a receptacle 29 through outlets 24. The recaptacle 29 may have lateral and/or longitudinal walls 30 to separate the outputs of different groups of cells. Each cell has three anode faces 4 at one side and three corresponding cathode faces at the other, each group of three bipolar electrodes being separated by walls 13 in which the passages 10 are formed. The walls 13 and outer walls 23 have grooves to locate ribs in the electrodes. Specifications 800,092, 846,305, 846,331 and 847,970 also are referred to.
Patent GB-508227-A (GB)
Title: Improvements in or relating to means for accurately spacing articles on conveyors
IPC: B65H29/66
Filed: 1938-01-27
Abstract: 508,227. Endless - belt conveyers; delivery apparatus. IGRANIC ELECTRIC CO., Ltd., and RAPLEY, H. H. Jan. 27, 1938, Nos. 2639 and 5140. [Class 78 (i)] [Also in Group XVI] Articles are accurately spaced on a conveyer by first spacing them at longer intervals than required, the intervals being subsequently shortened by spaced teeth moving in a substantially straight line beside the conveyer and checking the articles. The invention is of particular application in conveyers delivering newspapers from a printing press in batches where accurate spacing is required to ensure correct numbers in the batches. In Fig. 1 newspapers 1 are fed from the press in imbricated formation between conveyer belts 6 and 7. An endless chain 5 with teeth 4 travelling at a lower speed than belts 6 and 7, passes round a sprocket wheel 10 concentric with the end pulley of belt 7, and extends in a substantially horizontal path at a small angle to the stream of papers approaching the end of belt 7, and a vertical path parallel with a belt 8. As the papers approach the end of belt 7 they engage and are checked by the teeth 4, and pass down between belt 8 and chain 5 at intervals determined by the speed of chain 5. The papers are removed from chain 5 in equal batches by blades 3 on a delivery conveyer 2. In Fig. 2 the papers are fed to the toothed chain 4 by substantially vertical belts 14 and 15 at a small angle to the chain. Presser belts 18, 19 hold the papers in contact with belt 14 and chain 4. The upper belt 18 is biassed as a whole against the stream of papers by a spring 23, whilst the lower belt is biassed relatively to the upper belt by a spring 25.
Patent GB-803576-A (GB)
Title: Control systems for aircraft
Inventor: SEDGFIELD HUGH BROUGHAM
IPC: G05D1/08
Filed: 1954-03-17
Abstract: 803,576. Automatic control systems for aircraft. SPERRY GYROSCOPE CO., Ltd. Feb. 22, 1955 [March 17, 1954], No. 2861/57. Divided out of 803,572. Drawings to Specification. Class 38 (4). [Also in Groups XXIX and XXXIII] The subject-matter of this Specification is identical with that of Specification 803,572, but the claims are directed to an aircraft control system in which a reversible servomotor operating a control surface is controlled in dependence on displacement of a manual controller, displacement of the servomotor, and short-term deviations of the aircraft from its mean attitude, a mechanical linkage between the manual controller and the servomotor incorporating lost-motion to prevent the shortterm deviations from having an effect on the manual controller.
Patent GB-251591-A (GB)
Title: Improvements in plane irons
IPC: B27G17/02
Filed: 1926-02-01
Abstract: 251,591. Basmaison, P. May 2, 1925, [Convention date]. Planes.-A plane iron is provided with a detachable cutting edge 8 which fits into a groove 9 in the rabbet 4 of the lower member 2. The groove 9 is at an angle to the flat of the rabbet 4 so that the edge 8 can be flexed down and securely held by the nose 18 of the upper clamping plate 17. Endwise movement of the cutting edge 8 is prevented by a pin 7 fixed in the groove 9 over which fits a semi-circular notch in the back of the edge 8. A spring 20 overhanging the groove 9 holds the cutting edge initially in position. The spring 20 may have upstanding sides 22 and spring lugs 23 to press against the upper clamping plate 17 and prevent displacement during clamping.
Patent GB-923605-A (GB)
Title: Sheet feeding device
IPC: B41F21/05
Filed: 1962-01-25
Abstract: 923,605. Feeding sheets. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Jan. 25, 1962 [Jan. 28, 1961], No. 2940/62. Class 100 (1). Sheets are fed from a feed table 7 to a printing cylinder 4 by a gripper 1 mounted below the table on an eccentric 3 which controls the lifting movement of the gripper, and the eccentric 3 is mounted in a further eccentric 5 which permits adjustment of the gripper parallel to the feed table and towards or away from the printing cylinder. The eccentrics can be adjusted so that the gripper follows the paths 2 shown in continuous lines, or the paths 8 shown in chain lines, according to the thickness of the sheets being fed.
Patent GB-748054-A (GB)
Title: Improvements relating to pulleys
IPC: F16H55/50
Filed: 1954-02-01
Abstract: 748,054. Pulleys. VEREINIGTE GLANZSTOFF-FABRIKEN AKT.-GES. Feb. 1, 1954 [Feb. 14, 1953], No. 2979/54. Addition to 733,540. Class 80(1) The pulley of the parent Specification is formed in two halves 1, 2 with interengaging teeth 3, 4 adjustable in respect of the depth of engagement so that the frictional grip can be varied. This adjustment may. be effected by spacing rings between the two halves which are suitably clamped together or screw devices may be provided to adjust the halves axially of each other.
Patent GB-1492486-A (GB)
Title: Lubricants for the finishing of organic fibres
IPC: D06M13/282
Filed: 1975-01-23
Abstract: 1492486 Organopolysiloxane textile lubricant compositions WACKER-CHEMIE GmbH 23 Jan 1975 [6 Feb 1974] 2996/75 Heading C3T [Also in Divisions D1 and C5] A lubricant and anti-static agent for finishing organic fibres comprises a diorganopolysiloxane and an organic ester or partial ester of phosphoric acid or a tertiary organic phosphine oxide. The polysiloxane has a viscosity in the range from 500 to 10,000 cS at 25 C.; the phosphorus compound has one of the formulae O=P(OH)Y<SP>1</SP> 2 , O=P(OH) 2 Y<SP>1</SP> and O=PY<SP>2</SP> 3 , where Y<SP>1</SP> is hydrocarbonoxy and Y<SP>2</SP> is hydrocarbyl or hydrocarbonoxy, and is present in amount of 0À1 to 60% by weight based on the polysiloxane. Preferably the groups Y<SP>1</SP> and Y<SP>2</SP> are alkoxy or alkyl. The lubricant may also contain up to 100% by weight, based on polysiloxane, of a paraffin wax. It may be applied as an emulsion in water or as a solution in, e.g. di-n-butyl ether, but is preferably applied neat at a temperature at which it is homogeneous.
Patent GB-1115129-A (GB)
Title: Device for measuring high frequency constants of materials
IPC: G01N22/00
Filed: 1966-04-28
Abstract: 1,115,129. Impedance measurements. ELTRO G.m.b.H. & CO. GESELLSCHAFT FœR STRAHLUNGSTECHNIK. April 28, 1966 [June 18, 1965], No.3063/68. Divided out of 1, 115, 128. Addition to 1, 006, 523. Heading G1U. An apparatus for measuring high frequency constants of a material by the resonance method claimed in Specification 1, 006, 523 consists of a waveguide 11 open at an end having a metal flange 12, with a signal generator and signal receiver both coupled at 14 to the waveguide. The material 10 whose characteristics are to be measured is placed between the flange 12 and a metal reflective backing 13 and the signal detected by the receiver relative to that transmitted by the generator indicates the required characteristic at the generator frequency. The waveguide has a cut off frequency higher than the test frequency range, so that it attenuates signals transmitted along it, and may be open at the end Z, or may be suitably terminated. The flange 12 and backing 13 may be curved.