baber/WOPTO huggingface dataset:
Patent GB-896820-A (GB)
Title: Improvements in apparatus for feeding water under pressure to water tube boilers
Inventor: POLAK BOHUSLAV
IPC: F22B29/06
Filed: 1959-12-30
Abstract: 896,820. Feedwater supply systems for steam boilers. PRVNI BRNENSKA STROJIRNA ZAVODY KLEMENTA GOTTWALDA NARODNI PODNIK. Dec. 30, 1959, No. 44326/59. Class 123(2) The supply of feedwater to a once-through boiler 1 is automatically maintained in the event of failure of the main feed pump 5 by a flow of water from a reservoir 2 in which water is stored under pressure through a pipe 4 connected to the main feed line 8. The pipe 4 is normally closed by a valve 6 which is opened automatically in response to a signal from a pressure gauge 10 transmitted therefrom when the pressure in the line 8 falls below a preset value. When the valve 6 opens a non-return valve 12 closes to isolate the pump 5. When the pump is restarted a non-return valve 9 in the pipe 4 closes and as the feed line pressure reaches the preset value a signal from the gauge 10 causes the valve 6 to close. In a modification, a preliminary signal from the gauge 10 on feed pump failure overrides the automatic control of the setting of the boiler stop valve 11 to hold this valve open until the emergency feed supply is established. The automatic control of the valve 11 is then switched off and the valve controlled manually to regulate boiler pressure until the normal feed supply is restored.
Patent GB-1201347-A (GB)
Title: Electronic fuel injection control device
IPC: F02D41/36
Filed: 1967-09-29
Abstract: 1,201,347. Control of fuel injectors, electrically. SOC. DES PROCEDES MODERNES D'INJECTION SOPROMI. Sept.29, 1967 [Sept.29, 1966], No.44563/67. Heading G1N. [Also in Division H3] In a fuel injection control system for an I.C. engine, electromagnetic injector valve coils 126, 127, 128 Fig.4 are sequentially actuated in correspondence with respective flexible switches 103, 104, 105 Fig.3 operated by a pick-up on a rotary engine member e.g. a cam-shaft. Closing of any switch causes a pulse through transformers 106 or 107 or 108 also 109 from a D.C. source 101, 102 (e.g. vehicle battery), and corresponding secondary pulses fire thyristors 130, 131 also one of thyristors 122, 123, 124 to energize a respective coil admitting fuel to the appropriate cylinder. The operation of a switch (e.g. 103), starts an injection timing circuit, including C134, UJ transistor 135 and a variable resistor R133 which is controlled by one or more engine parameters e.g. pressure in inlet manifold or speed of rotation. A unit 136 (not described) also operates to correct the injection time as a function of engine parameters. Thus switching of 103, initiates the changing of C134 so that at the end of a certain time equal to the injection time, the charge on C134 is sufficient to fire UJ 135 and produce a pulse through a transformer 137 primary. A resulting secondary pulse fires an extinction thryistor 129 to turn OFF Th 131 by making the charge on C125 twice the supply potential. Thereby the injection period is terminated. In the initial part of the injection period a charge on C125 is added to the supply voltage through Th 130, the diode 120 being biased off, and the sum voltage is applied to the appropriate coil to make the injector open more rapidly. When C125 has discharged sufficiently Th 130 automatically extinguishes and diode 120 conducts to energize the injection coil. Subsequently Th 129 is turned ON as described above. Magnetic energy remaining in an injector coil after Th 131 is extinguished is recovered as potential energy in C125 and serves in the succeeding cycle to open the corresponding injector more rapidly. Specification 1,201,348 is referred to.
Patent GB-899219-A (GB)
Title: Steroid compounds
IPC: C07J75/00
Filed: 1960-12-30
Abstract: The invention comprises steroid compounds of the general formula <FORM:0899219/IV (b)/1> wherein X represents hydrogen or bromine or X is not present when there is a 1,2-double bond, Y represents hydrogen when X represents bromine or is not present, chlorine when X represents hydrogen or bromine, or Y is not present when there is a 6,7 double bond and when X represents hydrogen or is not present, and R represents hydrogen or the acyl residue of a carboxylic acid containing not more than 9 carbon atoms; and processes for the preparation of: 2a -bromo-4-hydroxy(or acyloxy)-17a -methyltestosterone or 2a  - bromo - 6 - chloro - 4 - hydroxy (or acyloxy) - 17a  - methyl - testosterone by brominating the corresponding 4-hydroxy-(or acyloxy) - 17a  - methyl - testosterone with bromine or with N-bromosiccinimide in an organic halogenated solvent such as carbon tetrachloride, chloroform, methylene chloride or acetic acid; 2a -bromo-6b -chloro-4-hydroxy (or acyloxy)-17a -methyl-testosterone or 6b -chloro-4-hydroxy (or acyloxy)-17a -methyl-testosterone by chorinating the corresponding 4-hydroxy-(or acyloxy)-17a -methyl-testosterone with chlorine or with N-chlorosuccinimide in an organic halogenated solvent such as carbon tetrachloride chloroform or methylenechloride; 2a -bromo-6a -chloro-4-hydroxy (or acyloxy)-17a -methyl-testosterone- or 6a -chloro-4-hydroxy (or acyloxy)-17a -methyl-testosterone by chlorinating the corresponding 4-hydroxy(or acyloxy)-17a -methyl-testosterone with chlorine or with N-chlorosuccinimide in acetic acid; 1, 2 - dehydro - 4 - hydroxy (or acyloxy) - 17a  - methyl-testosterone by treating 2a -bromo-4-hydroxy (or acyloxy) - 17a  - methyl - testosterone with lithium bromide and lithium carbonate at 80 DEG C. to 110 DEG C. for 10 to 30 hours or by dehydrogenating 4 - hydroxy (or acyloxy) - 17a  - methyl-testosterone with selenium dioxide in t-butanol; 6,7-dehydro-4-hydroxy (or acyloxy)-17a  - methyl - testosterone by dehydrogenating 4-hydroxy (or acyloxy)-17a -methyl-testosterone with chloranil in warm toluene or by dehydrochlorinating 6-chloro-4-hydroxy (or acyloxy)-17a -methyl-testosterone; and 1,2 : 6,7-dehydro-4 - hydroxy (or p acyloxy) - 17a  - methyl - testosterone by dehydrogenating 1,2-dehydro-4-hydroxy (or acyloxy)-17a -methyl-testosterone with chloranil in warm toluene, by dehydrogenating 6,7-dehydro - 4 - hydroxy (or acyloxy) - 17a  - methyl -testosterone with selenium dioxide in t-butanol, or by dehydrohalogenating 2a -bromo-6-chloro-4-hydroxy (or acyloxy)-17a -methyl-testosterone with lithium-bromide, chloride and carbonate in dimethylformamide. In any of the above processes, the product may be treated to hydrolyse a 4-acyloxy group or to acylate a 4-hydroxy group.  Therapeutic compositions useful for stimulating anabolism contain as the active ingredient one or more steroids of the above general formula and a solid or liquid diluent.  The composition may be in the form of a tablet, powder, pill, elixir or capsule. Specification 848,288 is referred to.
Patent GB-1496185-A (GB)
Title: Low-pressure casting installation
IPC: B22D17/00
Filed: 1975-10-30
Abstract: 1496185 Pressure casting apparatus GROUPEMENT POUR LES ACTIVITES ATOMIQUES ET AVANCEES "GAAA" 30 Oct 1975 [4 Nov 1974] 45014/75 Heading B3F In a low pressure casting installation having a ladle 41 for molten metal 42 and a single electromagnetic pump 44 adapted to be immersed in the molten metal at an exposed region of the ladle, two moulds 48, 49 are arranged one on each side of the pump, and above the ladle and a displaceable injection pipe 55 is provided for injecting molten metal into either of the moulds from the ladle by way of the pump 44, means 59 being provided for rapid connection of the injection pipe to either of the moulds. In operation, the moulds are filled in succession the casting in one mould cooling whilst the other mould is being filled. The rapid clamping of the pipe nozzle 19 to the mould inlet 54 is effected by fluid actuated cam discs which provide a progressive clamping action to seal the nozzle 19 with the inlet 54. The metal is maintained under pressure in the mould after charging to improve the metallurgical qualities of the finished casting. Each mould is cleaned after casting.
Patent GB-1556767-A (GB)
Title: Cable bend testing
IPC: G01N3/20
Filed: 1976-10-29
Abstract: An optical cable is subjected to a bend test in which the cable (12) is wound under tension onto a cylindrical mandrel (10) and is unwound from the latter, the mandrel being provided with a helical groove (22). The axis of the mandrel is inclined to the horizontal at an angle equal to the pitch angle of the helix, with the result that the cable, which is tensioned by a weight, always meets the groove at a point where the latter extends vertically. During rotation, the mandrel is displaced laterally so as to avoid the lateral displacement of the suspended part of the cable, thereby preventing the weight loading the cable from beginning to oscillate like a pendulum. The optical transmission properties of the cable are monitored during the bend test. <IMAGE>
Patent GB-1110310-A (GB)
Title: Improvements in or relating to feed devices for honeycomb conveyors
IPC: C22B1/24
Filed: 1966-10-10
Abstract: 1,110,310. Feeding endless conveyers. MASCHINENFABRIK BUCKAU R. WOLF A.G. 10 Oct., 1966 [9 Oct., 1965], No. 45267/66. Heading B8A. [Also in Divisions F1 and F4] A device for feeding pulpy material into cavities of an endless honeycomb conveyer 4 which subsequently passes through a hot re - circulatory gas atmosphere in a housing, comprises a circular feed trough 29 housing a pressure worm 32 which feeds material to a rectangular cross-sectioned pressure chamber 31, the ascending run of the conveyer 4 passing the outlet of the chamber 31 to receive material therefrom. Material is fed to the worm 32 through an aperture 30. The worm shaft 33 is driven by a motor 36, the speed of which is controlled from a metering device 42, 43 which measures the material pressure in the pressure chamber 31. Cover-plates 27 adjacent the pressure chamber outlet and resiliently mounted cover-plate 28 on the remote side of the conveyer 4 facilitate feeding the material into the conveyer cavities. In the embodiment of Figs. 4 and 5 (not shown) the pressure chamber outlet is formed in the side of the feed trough and the worm shaft is extended into this area and carries smoothing vanes to carry the material to the far end of the pressure chamber. In the embodiment of Figs. 6-7 (not shown) the outlet from the pressure chamber is formed in the side thereof and the opposite side of the chamber is tapered towards the outlet to give the chamber a wedged form.
Patent GB-1128452-A (GB)
Title: A supervisory arrangement for electro-erosion pulse generators
IPC: B23H1/02
Filed: 1965-10-27
Abstract: 1,128,452. Transistor pulse circuits. A.G. FœR INDUSTRIELLE ELEKTRONIK AGIE LOSONE BEI LOCARNO. 27 Oct., 1965 [11 Feb., 1963], No. 45581/68. Heading H3T. [Also in Division B3] A circuit arrangement for disconnecting the current supply in an electro-erosion pulse generator due to short-circuit conditions at the workpiece-electrode gap 4 includes a switching arrangement 5 which applies a blocking signal to an amplifier 2 in the event of a protracted voltage reduction at the gap 4. The amplifier 2 feeds pulses from a shaper 1 through an output stage 3 to the gap. Conductors 109 and 110 feed the voltage conditions across the gap to the switching arrangement 5, the values of a capacitor 78, diodes 77, 72, resistors 70, 71, and a transistor TR13 ensuring that a relay 20 is not operated for minor voltage fluctuations by keeping the current constant. When the voltage between conductors 109 and 110 falls to zero the relay 20 is operated to apply a negative potential to the point C in the amplifier, thus breaking the circuit to the gap. A relay 21 is pulled up after a time delay depending on the time constant of the RC member 74, 76 to restart working of the apparatus. Should shortcircuit conditions still exist the relay 20 again operates, and so on, a warning signal being given to an operator, if desired, after a given number of operations of the relay.
Patent GB-1027816-A (GB)
Title: Method of dehydrogenation
IPC: B01J27/08
Filed: 1962-12-03
Abstract: The dehydrogenation of hydrocarbons containing the group CH-CH is effected by reaction with chlorine and oxygen in the presence of a catalyst comprising an intimate mixture of at least two inorganic materials at least one of which is a salt of an alkali or alkaline earth metal which does not decompose to the oxide or hydroxide at the reaction temperature and is present in an amount less than 25% by weight of the catalyst.  The alkali or alkaline earth metal compound is preferably a phosphate, sulphate or halide and an oxide or hydroxide may also be present as a third ingredient. The other material may be practically any metal or compound thereof particularly a transition metal compound.  The catalyst may be supported.  Reaction is effected at 450-750 DEG  C. with 0.4-2 moles of oxygen per mole of organic compound and 0.001-0.2 mol of halogen which may be added as hydrogen halide, ammonium halide or alkyl halide; bromine may also be present. Diluents may be added, e.g. up to 50 mols. of steam per mol. of organic compound.  The L.H.S.V. based on organic compound may be 0.25-3.0 vol./vol./hr. giving residence times of 0.001-10 seconds.  The following conversions are referred to: alkanes to alkenes, alkenes to alkadienes, alkyl aromatic compounds to alkenyl aromatic compounds, and cycloalkanes to aromatics.ALSO:The dehydrogenation of organic compounds containing the group CH-CH is effected by reaction with chlorine and oxygen in the presence of a catalyst comprising an intimate mixture of at least two inorganic materials at least one of which is a salt of an alkali or alkaline earth metal which does not decompose to the oxide or hydroxide at the reaction temperature and is present in an amount less than 25% by weight of the catalyst.  The alkali or alkaline earth metal compound is preferably a phosphate, sulphate or halide, and an oxide or hydroxide may also be present as a third ingredient. The other material may be practically any metal or compound thereof particularly a transition metal compound.  The catalyst may be supported.  Reaction is effected at 450-750 DEG  C. with 0.4-2 moles of oxygen per mole of organic compound and 0.001-0.2 mol of halogen which may be added as hydrogen halide, ammonium halide or alkyl halide; bromine may also be present. Diluents may be added, e.g. up to 50 mols. of steam per mol. of organic compound.  The L.H.S.V. based on organic compound may be 0.25-3.0 vol./vol./hr. giving residence times of 0.001-10 seconds.  The following conversions are referred to: alkyl heterocyclic compounds to alkenyl heterocyclic compounds, alkyl halides or cyanides to alkenyl halides or cyanides, and ethers, esters, aldehydes, ketones or acids to corresponding unsaturated compounds.
Patent GB-1072369-A (GB)
Title: Production of nickel sulphamate
IPC: C01B21/096
Filed: 1965-11-01
Abstract: The dissolution rate of nickel powder in aqueous sulphamic acid to produce nickel sulphamate is accelerated by feeding substantially pure oxygen (i.e. oxygen containing up to 10% air or other non-oxidizing gases) into a suspension of nickel powder in an aqueous sulphamic acid solution while maintaining the pH of the solution below 5.  The pH of the solution may be maintained, preferably in the range 1.5 to 2.5, by controlling the rate of addition of sulphamic acid to the suspension. The amount of sulphamic acid added may be controlled so that it does not exceed the stoichiometric amount required to combine with the nickel in suspension, preferably the amount of nickel present is up to five times the stoichiometric amount required to combine with available sulphamic acid.  The nickel powder may be finely divided and may be obtained by hydrogen reduction from aqueous media. When substantially all the free sulphamic acid has reacted the nickel sulphamate is separated from undissolved nickel particles and may be subjected to further oxygenation to remove iron contamination by precipitation of dissolved iron.
Patent GB-1149247-A (GB)
Title: Improved apparatus for mixing powdery material(s) and liquid(s)
Inventor: HEESEN LEONARDUS BERNARDINUS
IPC: B01F13/10
Filed: 1965-11-02
Abstract: 1,149,247. Mixing apparatus. MACHINEFABRIEK HEESEN N.V. 17 Oct., 1966 [2 Nov., 1965], No. 46293/65. Heading B1C. Apparatus for mixing a powder and a liquid comprises an inclined vessel 1 having a rotary shaft 3 with non-propelling stirring arms 4 and a non-atomising liquid inlet 7, in combination with a second mixer. As shown this comprises a drum 14 with rotating blades 16 and with replaceable inlet and outlet screens 18, 19 forming part of the drum wall. The outlet 13 of the first mixer is adjustable to control residence time. The pump 10 may be of variable displacement and the liquid supply may be proportional to the size of the outlet 13.
Patent GB-959975-A (GB)
Title: Container
IPC: B65D5/20
Filed: 1962-12-07
Abstract: 959,975. Packaging shirts. G. A. GUNLERSEN. Dec. 7 1962 [Oct. 31, 1962], No. 46335/62. Headings B8C and B8P. A blank (Fig. 1) is bent up to form a box for accommodating a shirt (Fig. 2) by first bending along the crease lines 3 to form the two sides 2, and then bending the extensions 4, 4<SP>1</SP> along the crease lines 5, 5<SP>1</SP> to form a back wall in which position they are retained by the back wall portions folded along score lines 6 and 8 to partially enclose the extensions 4, 4<SP>1</SP>. The flaps 9 are retained by inserting tongues 10 into the slots 11. The parts 16, 17 are then bent up and interlocked so that when this channel shaped part is bent down over the shirt the part 14 will engage under the collar points. The tray may have two end walls instead of being open-ended and a U-shaped cut in the base panel may be made to produce a stiffening panel for insertion between the folds of the shirt.
Patent GB-1438879-A (GB)
Title: Bowed roll
IPC: F16C13/00
Filed: 1974-10-25
Abstract: 1438879 Curved-axis rollers ALBANY INTERNATIONAL CORP 25 Oct 1974 [7 Nov 1973] 46391/74 Heading F2U A curved-axis roll 10 comprises a curved shaft 12, a plurality of spools 24 mounted on the shaft 12 through bearings 20 and a series of spacers 26 separating the bearings, the spacers being longitudinally split and provided with tapered ends 32 which engage complementary tapers on the inner bearing races 34 to wedge spacers and bearings on the shaft 12. The end bearings 28 are axially retained by abutment means 30. The roll has an outer sleeve 16 held by end caps 18 keyed to the end spools 22.
Patent GB-1113074-A (GB)
Title: Process and apparatus for determining the properties of a medium
IPC: G01N11/14
Filed: 1966-10-18
Abstract: 1, 113, 074. Measuring viscosity; elasticity. ETHYLENE-PLASTIQUE S.A. Oct. 18, 1966 [Oct. 21, 1965], No. 46499/66. Heading G1S. In a method of determining the viscosity and elasticity properties of a substance, the substance is positioned between two surfaces e. g. a ball 9 and a dish shaped member 21, which are rotated at the same speed and in the same direction about unaligned but converging axes, the reaction torque applied by the substance to one of the surfaces being measured. In a viscosity determination, the liquid is placed between the ball 9 and dish shaped member 21 which are driven by motors 12, 22 respectively, the direction of the axis of the dish shaped member 21 being adjustable by a rotatable ring 17. The ball 9 is mounted on a pivotable frame 25, movement of which is limited by screws 28, 29 each having an electrical contact which actuates an electrical signalling device. A calibrated torsion wire 30 is attached to the frame 25 via a tube 32. In operation, as the ball 9 and dish shaped member 21 are rotated, a torque is applied to the frame 25 moving it against either of the screws 28, 29, the signal thus generated actuating a device which twists the torsion wire 30 to restore the frame 25 to its initial position, the angle of twist of the torsion wire being measurable. An initial torque may be applied to the frame 25 by the addition of weights. The apparatus is enclosed in a temperature controlled oven. When used for elasticity measurements, the members 9 and 21 and the motor 22 are replaced by an elongated specimen clamped at one end to the shaft 11, and at the other end the specimen moves in bearings mounted on a tube 75 which is fixed to the frame 25, see Fig. 8 (not shown). The elasticity measurements are effected by the zero torque method described above.
Patent GB-978765-A (GB)
Title: Improvements in or relating to slewing cranes
IPC: B66C23/48
Filed: 1961-12-28
Abstract: 978,765. Jib cranes. J. TRANCHERO. Dec. 28, 1961 [Dec. 28, 1960], No. 46526/61. Headings B8B and B8H, [Also in Division E1] The collapsible jib 6, 7, 8, Fig. 1, of a crane which slews through 360 degrees is luffed by raising a pivot point 17 whilst the rear of the jib is pivoted by links 10, 11 to a sleeve 13 which slews but does not move vertically. Section 7 of the jib slides into section 8 and section 6 folds back about a hinge pin 9. The jib is raised by an hydraulic ram 14, 15 which simultaneously raises the load by a rope 20 fixed to a point 20a. Fig. 4 shows an embodiment in which the jib is mounted on a fork-lift truck and has an arm 23 pivoted about a point 6a by a ram 24. Guides 31 having a wheel 33 which runs up the post 14 are raised by the jib, and a rope 20 moves the platform 29 up and down the guides 31. With the jib rotated through 180 degrees and section 7 retracted a shovel 34, Fig. 5, mounted on the arm 23 may be operated by a ram 24 connected between holes a-f and a‹-f‹. As shown in Fig. 6 a platform 141 which can be tilted by a ram 143 is suspended from a link 148 pivoted to the jib at 110a. This link enables the platform to be lowered right on to the ground by means of a rope 120. The ram 114, 115 is itself pivoted to a trolley and can be tilted by a ram 140. In any of the embodiments described the ram which supports the jib may be replaced by either a rack-and-pinion or telescopic members operated by a rope and winch.
Patent GB-1307129-A (GB)
Title: Miniaturized single turn potentiometer
IPC: H01C10/32
Filed: 1970-09-30
Abstract: 1307129 Variable resistors ELECTRIC MIDLAND CORP 30 Sept 1970 [1 Oct 1969] 46582/70 Heading HIS A single turn miniaturized potentiometer comprises an arcuate resistance element, deposited on a substrate 40, which is engaged by a wiper arm that is integral with a leaf spring arranged to contact the end 23a of a lead 23. The wiper, leaf spring arrangement forms part of a spring contact which is held in a circular recess of a rotor 30 by means of sharp projections on the edges of the spring contact (Figs. 6 and 8, not shown). The rotor and substrate are held together by an outer housing 20 which has non-symmetrical tapes 71 that are bent into recesses under a base member 80 supporting the substrate. A resilient 0 ring 60 is held between a shoulder 33 on the rotor and the substrate so as to act as a hermetic seal.. Two projections on the bottom face of the substrate engage two corresponding indentations in the base member to prevent relative rotation of the members (Fig. 1b not shown). A stop 26 is provided to prevent rotation of the rotor beyond the ends of the resistance element, and the leads 21-23 are sealed in the arrangement using an epoxy resin (Fig. 10, not shown). A further embodiment is described in which the leads project horizontally from the potentiometer (Fig. 13, not shown).