baber/WOPTO huggingface dataset:
Patent GB-574769-A (GB)
Title: Improvements in or relating to circuit arrangements for the generation of electricalpulses
IPC: H04N5/06
Filed: 1942-07-29
Abstract: 574,769. Valve generating circuits. WHITE, E. L. C., and WILLIAMS, F. C. July 29, 1942, No. 10600. [Class 40 (v)] Delayed pulses are generated from master pulses by means of a time constant circuit including a condenser having charging means and discharging means operative on the occurence of a master pulse. A multi-vibrator is provided such that the transitions in opposite senses occur at different values of control voltage, and so associated with the condenser that transitions in one sense generate the delayed pulses while transitions in the other sense are effected by further means instead of by the discharge of the condenser so that a lower minimum time delay may be obtained. Fig. 1 shows an arrangement in which an applied pulse drives the cathode of the valve 3 negative to render the valve conducting and to discharge condenser 2 causing a transition to take place in the multi-vibrator 4, 5. At the end of the pulse condenser 10, charged by grid current, maintains the valve 3 non- conducting so that condenser 2 charges, and when it reaches the second transition voltage produces the other transition in the multivibrator. Fig. 3 shows an arrangement of the valve 3 in which the condenser 2 is connected through a diode to isolate the condenser from the cathode resistance 6 so as to render it insensitive to small signals in the intervals between the pulses. A further diode between the anode of the valve 3 and the condenser 2 may be provided to limit the rise in the potential of the valve 3 and obviate flow of grid current in the valve 4. In this arrangement, an A.C. coupling can be used between the anode of thevalve 4 and the grid of the valve 5. The timing may be adjusted by the potentiometer 7 or varying the condenser 2, or the bias applied to the valve 5. The timing may be cyclically varied in a system of echo detection. The multi-vibrator may have additional control means to which the pulse-producing transition may be applied.
Patent GB-924995-A (GB)
Title: Improvements relating to benzene-monoazo-naphthalene dyestuffs for wool or the like and their use
IPC: C09B29/30
Filed: 1960-03-25
Abstract: The invention comprises dyes of formula <FORM:0924995/IV(a)/1> where B is a benzenic residue and may be substituted in adjacent positions by a tetramethylene group, Y is H or OH, R1 and R2 are H, alkyl, cycloalkyl or aralkyl or one R is aryl and the other alkyl, cycloalkyl or aralkyl and R1 and R2, together with the amide N atom, also represent a saturated 5 or 6 membered heterocyclic ring.  The dyes are made in conventional fashion from appropriate benzenic diazo, and naphthalenic coupling, components, coupling being effected in an acid medium, or by sulphacylation of a corresponding hydroxy dye. Representative of indicated values for B are 2-ethylphenyl, 3,4-dimethylphenyl, 4-methoxy- and phenoxy-phenyl, 3-bromophenyl, 2-methylsulphonylphenyl, nitro- and trifluoromethylphenyl radicals. Representative of indicated values for R1 and R2 are methyl, octyl, cyclohexyl, 4-chlorobenzyl, phenyl, and with N, piperidide and morpholide.  The dyes colour natural and synthetic polypeptide fibres, especially wool, from neutral baths in yellowishto bluish-red shades.  Examples are provided of the preparation of the dyes and their use in dyeing wool.
Patent GB-837874-A (GB)
Title: Improvements in or relating to decalcomanias
IPC: B44C1/17
Filed: 1958-04-03
Abstract: 837,874. Transfers. BUNTPAPIERFABRIK A.G. April 3, 1958 [April 4, 1957], No. 10739/58. Class 106(2) A ceramic underglaze decaleomania comprises a carrier With a water-soluble coating carrying in optional sequence, a carboxyl-group containing polyvinyl film and a ceramic picture. If the latter is the top layer, an additional film of carboxylgroup-containing polyvinyl compounds may be applied as a masking lacquer. The carrier may be paper or textile material, or synthetic material such as vinyl polymers, e.g. polyvinyl chloride, cellulose derivatives, e.g. " Cellophane " (Registered Trade Mark) or foils of polyesters or epoxy resins, and the coating may be gum arabic, dextrin, or polyvinyl alcohol. However, with such synthetic materials, the water-soluble coating is preferably replaced by a hydrophilic wax coating, e.g. of polyethylene glycol. The vinyl polymers for the polyvinyl film may be homopolymers, copolymers or polymeric mixtures of carboxyl-group containing vinyl compounds such as acrylic acid, methacrylic acid or maleic acid. The copolymers or polymeric mixtures may contain other compounds comparable or susceptible to being polymerized with the vinyl compounds, such as polyacrylic acid esters, polymethacrylic acid esters, polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, polyvinyl alkyl ethers, polyvinyl acetals or styrene. The copolymer or mixture must swell in water, or at least begin to swell in dilute alkaline solutions. The masking films may be the same. The films may be applied as solutions or dispersions, the solvents or dispersing agents being, for example, alcohols, glycols, hydrocarbons, ketones, ethers, esters or water. The ceramic colours may be oxides or silicates, and their binders those having a base of unsaturated oils, cellulose ethers, cellulose esters or higher hydrocarbons, and printing varnish, printing oils or other binders having a lacquer base. Transferring designs. Before application the polyvinyl film is caused to swell in an acqueous solution of sodium or other acetate metal, carbonate, acetate metal hydroxides, ammonia, organic amines such as triethanolamine, or suitable solvents such as alcohols (e.g. methanol or ethanol), ketones (e.g. acetone), or ethers (e.g. diethyl ether or dibutyl ether).
Patent GB-101036-A (GB)
IPC: G01R11/46
Filed: 1916-07-29
Abstract: 101,036. Allgemeine Elektricitats Ges. April 26, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Current, registering duration of.--An induction meter for registering duration of current is rendered independent of variations of pressure and frequency by dividing the magnetic field into two parts relatively displaced in time and space. As shown in front and side elevation respectively in Figs. 3 and 4, a laminated iron core a, with a pressure winding b and a gap for a disk rotor g, has a projecting iron d with a short-circuit winding f. The limb i of the core is adjustable about a bolt k to adjust the main flux.
Patent GB-232784-A (GB)
Title: Improvements in bearings for electric and fluid operated regulators
IPC: H01H50/22
Filed: 1924-05-01
Abstract: 232,784. Dehn, F. B., (Neufeldt & Kuhnke). May 1, 1924. Friction, diminishing. -The movable member of automatic electric and fluid operated regulators is guided by bearing surfaces which move at right angles to its movement, and the reacting forces between the parts are balanced in a frictionless manner. As shown, a movable member or armature 2, Fig. 2, which moves axially under the control of a solenoid 1 is mounted on a rotating or oscillating shaft 4 and is prevented from turning with the shaft 4 by a rotating or oscillating member 5. The latter passes through a hole in, or may bear on one side of, a projection on the armature 2. In this construction the axial movement of the armature 2 is used to control a hydraulic servomotor, pressure fluid which passes through a passage 6 and a slot' 7 in the shaft 4 being throttled by the lower edge 8 of the armature 2. In a modification, the armature 15, Fig. 4, which is mounted on a rotating on oscillating shaft 11, is prevented from rotating by the magnetic force between the controlling electromagnet 9 and the adjacent cylindrically shaped parts of the armature. Contact between the magnet 9 and the armature 15 due to relative angular movement thereof may also be prevented by arranging the lateral arms of the armature 15 below the ends of the arms of the electromagnet 9.
Patent GB-1449361-A (GB)
Title: Lithographic ink
IPC: C09D11/02
Filed: 1974-03-11
Abstract: 1449361 Lithographic inks PITNEYBOWES Inc 11 March 1974 [12 March 1973] 10837/74 Heading C4A A lithographic ink is in the form of a stabilized emulsion of 40 to 85 parts by weight of a continuous, oleophilic phase and 60 to 15 parts by weight of a discontinuous hydrophilic phase, the oleophilic phase comprising one or more of the oleophilic ingredients present in a lithographic ink or a varnish together with pigment and the hydrophilic phase comprising at least one polyhydric alcohol and (a) an amount equal to 1-10% by weight of the hydrophilic phase of a surfactant which is (i) a polyoxyethylene alcohol having the general formula where ROH is a long chain fatty alcohol and n is an integer which is at least two, (ii) a polyoxyethylene ester of a saturated fatty acid having the general formula where R<SP>1</SP> is the residue of a long chain fatty acid and m is an integer greater than 50; (iii) an ethylene oxide-propylene oxide condensation product having a molecular weight of 1,000 to 5,000 and with the ethylene oxide units comprising less than 50 mole per cent of the polymer, (iv) an ethylene oxide-propylene oxide condensation product which has been further reacted with ethylene diamine to give a polymer having a molecular weight of substantially 4,000 and with the ethylene oxide units constituting substantially 10 mole per cent of that polymer, or (v) a polyvinyl pyrrolidone having a molecular weight of less than 200,000 and (b) a sufficient amount of a polystyrene sulphonate to stabilize the ink against demulsification in storage. In the examples the inks comprise carbon black, alkyd resin, alkyd modified urethane resin, castor oil, a resinated alkyd modified linseed oil, hydroquinone, ethylene glycol, various surfactants (i) to (v), water; glycerine, and polystyrene sulphonates.
Patent GB-233689-A (GB)
IPC: B44B3/00
Filed: 1925-04-27
Abstract: 233,689. Williams, C. F. May 7, 1924, [Convention date]. Pantograph linkages.-An engraving-machine comprises a tool head 20 and a tracer 27 carried by a pantograph linkage 2 - - 5, the link 2 having an extension which is longitudinally adjustable in a holder 13 pivoted about a vertical axis situated midway between the sides of the extension. An adjustment of the tool head 20 to vary the ratio of reproduction is followed by an adjustment of the arm 2 in the holder 13 to bring the pivot of the holder 13 into line with the tool 23 and the tracer 27, graduations being provided on the arms 4 and 2 to facilitate these adjustments. The holder 13 is pivotally mounted on a slide 15 clamped on a guide 16, this arrangement allowing adjustment of the whole linkage with respect to the work support.
Patent GB-1493975-A (GB)
Title: Hydrostatic transmission control systems
IPC: B60W10/10
Filed: 1975-03-17
Abstract: 1493975 Hydrostatic transmission control EATON CORP 17 March 1975 [17 June 1974 10980/75 Heading F2W In a control system for a motor vehicle hydrostatic transmission wherein a control valve 20 meters pressure liquid from an engine-driven pump 106 to a spring centred pump displacement adjusting servo 34 through a reversing valve 32 and the valve 20 is responsive to engine speed, the liquid pressure supplied to the servo 34 and, above a predetermined throttle setting, to accelerator pedal position, means are provided to retard rapid movement of the valve 20 when the accelerator pedal is depressed rapidly. An engine driven centrifugal governor 92, 94 acts through a rod 146 against the bias of a spring 102 to move the spool 22 of the valve 20 right. The spool 22 meters pressure liquid from the pump 106 to a line 70 and the resulting pressure build-up therein is fed additionally through a duct 130 in the valve spool 22 to a chamber 134. The pressure in the chamber 134 moves the valve spool 22 left against the bias of the engine governor to a position in which it prevents further pressure build-up in the line 70. The pressure in the line 70 which is supplied to the displacement adjusting servo 34 is thus proportional to engine speed. When the pump attains its maximum displacement a lever 198 connected to an engine throttle pedal 84 engages a collar 144 against which the engine governor spring 102 reacts. Thereafter further depression of the accelerator pedal 84 increases the load on the governor spring 102 to balance the accompanying increase in engine governor force on the rod 146. The accelerator pedal 84 is connected to the lever 198 through a spring lostmotion coupling 194 and a rod 196. The movement of the rod 196 is damped by a one-way dash pot 206 when the accelerator pedal 84 is depressed rapidly to compensate for the lag in the accompanying increase in engine speed. Throttles 220, 224 in the pump delivery line 104 and a return line 56 limits the rate of increase and decrease of pump displacement. A servce braxe pedal 236 acts on a linkage 110, 120 between the servo 34 and the pump displacement adjusting lever 124 to override the normal control and reduce pump displacement to zero prior to application of the vehicle brakes.
Patent GB-883716-A (GB)
Title: Improvements in nuclear reactors
Inventor: CAMPBELL JOHN WILLIAM EDMUND
IPC: G21C11/08
Filed: 1959-04-01
Abstract: 883,716. Reactors. BABCOCK & WILCOX Ltd. March 31, 1960 [April 1, 1959], No. 11062/59. Class 39 (4) In a heterogeneous nuclear reactor, water flows upwards through the core and acts as both coolant and moderator. The core is formed of vertical fuel and control rods supported at their ends, within the cylindrical pressure vessel, by an upper and a lower lattice which permit the coolant flow, each compartment of the lattice being charged with a fuel element or control rod. As shown, water flows into pressure vessel 1 through inlet 14 and part moves upwards through passages 18, 28, 52 and by apertures 19, 26 into compartments 51 of the upper core support 37. From 51, water flows through apertures 47 in plate 45 through the fuel element chambers 31 into the lower chamber 67. Further coolant from 14 flows downwardly through passage 72 and enters 67 through orifices 73. From 67, part of the coolant flows upwards through orifices 74 over the outside of the control rods 32, into chamber 95 and the remainder passes upwardly through the inner fuel element chambers 31 through tubes 80 to 95. The coolant discharges from 95 to the outlets 13. Each control rod 32 has a lower follow up section 34 of low neutron capture cross-section material and each fuel element chamber container 56 is substantially surrounded by the control rod ribs 33. Each control rod rests on a resilient stop 75. Each fuel element chamber is secured between the supports 36, 37 by a spring operated catch which is controlled by an axially compressed spring and allows for relative vertical movement due to thermal expansion.
Patent GB-586730-A (GB)
Title: Improvements relating to photographic solutions and processes
IPC: G03C5/38
Filed: 1944-06-09
Abstract: 586,730. Photographic fixing solutions. KODAK, Ltd. (Eastman Kodak Co., Crabtree, J. L, and Eaton, G. T.). June 9, 1944, No. 11098. [Class 98 (ii)] Material having a layer of a silver salt emulsion having a binder having a permeability to aqueous fixing solutions less than that of gelatine, is fixed with an aqueous solution containing an iodide of an alkali metal or ammonium iodide, and thiourea or a thiocyanate or both. The silver salt emulsion may be a bromide, chloride, bromiodide, chlorobromide, or chlorobromiodide emulsion having as binder cellulose nitrate, acetate, or acetate-butyrate; or a polyvinyl resin such as acetals (e.g. acetaldehyde, propionaldehyde, or butyraldehyde acetals), polyvinyl alcohol, esters (e.g. partially hydrolysed acetates), or mixed acetal-esters. The thiocyanate may be sodium, potassium, ammonium, or tetramethylammonium thiocyanate or thiocyanocatechol. The fixing bath may contain between 8 to 25 per cent of iodide and between 0.25 to 8 per cent of thiourea or about 25 per cent of iodide and between about 5 to 25 per cent of thiocyanate dissolved in water. A thiocyanate may be incorporated in the developing bath. Specifications 527,283, 531,579, 543,855, 551,659 and 565,135 are referred to.
Patent GB-1086333-A (GB)
Title: Improvements in or relating to closures for containers
Inventor: DEXTER GUY EDRIC
IPC: B65D43/02
Filed: 1966-03-14
Abstract: 1,086,333. Caps for containers. METAL BOX CO. Ltd. March 14, 1966, No. 11098/66. Addition to 1,047,747. Headings B8D and B8T. In a moulded plastics cap for a container which, according to the parent Specification, is provided with dispensing apertures 6 in the crown 5 of the cap, and in which each aperture 6 is closed by an integral frangible diaphragm 7 carrying a stud 8 by which pressure to break the diaphragm may be applied, the cap is secured to a lip (3), Fig. 4 (not shown), around the container mouth by means of an inturned curl 2, Fig. 3, on a skirt 1 of the cap. The curl 2 may be formed by a cold curling process, and an internal annular collar 13 on the lower surface of the crown of the cap facilitates application of the cap to the container mouth. A tapering upstanding annular wall 11 on the crown 5 facilitates nesting of a stack of such caps, for which a suitable material is polystyrene. An interior surface of the wall 11 makes sealing engagement with the inside of the container mouth.
Patent GB-1486253-A (GB)
Title: Bituminized roof sheets
IPC: D04H3/011
Filed: 1974-09-09
Abstract: 1486253 Bitumenised roof sheet HOECHST AG 9 Sept 1974 [8 Sept 1973] 11117/77 Divided out of 1486252 Headings D1R A bitumenised fibrous roof sheet has a tensile strength of 30 to 100 kp/5cm, an elongation at break of 20 to 60 %, an elastic strain of 1 to 5 %, a tear propagating strength of 2 to 8 kp, a nail plucking resistance of 13 to 30 kp, and a flexural strength of more than, 5000 cycles. It is produced by applying bitumen to the bonded non-woven fabric described and claimed in Specification 1486252.
Patent GB-694145-A (GB)
Title: Deflectors for ventilating grilles
IPC: F24F11/00
Filed: 1951-05-11
Abstract: 694,145. Ventilators. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. May 11, 1951 [May 11, 1950], No. 11167/51. Class 137 Mechanism for adjusting and holding the closing member 38 of a ventilating grille in different-angular positions comprises a frame 15 on supporting shafts 14 on which adjusting levers 6, 19 are pivoted. Helical springs 4, are carried on wires 2 at each end of the frame with their inner ends mounted on the shafts and their outer ends which are arranged to cross each other in pairs at the centre of the closing plate, bent to engage in recesses 17, 18 in rails 16 on the plate. The levers 6, 19 each comprise a notched sector portion between arms 21, 24 and are held in selected positions by the engagement of the end of a spring 8 coiled round shaft 14 in notches 25, 28 or 39. Movement of one of the levers e.g. 19 causes the outer end 37 of its arm 21 to press out the closing plate so as to pivot about the edge of the grille nearer the lever operated. At. the same time a lug 34 on the lever contacts with the forward portion of lever 6 so as to lock it.
Patent GB-1426813-A (GB)
Title: Finstabilised projectile
IPC: F42B12/32
Filed: 1973-03-07
Abstract: 1426813 Fragmentation projectiles ETAB SALGAD 7 March 1973 [22 March 1972] 11169/73 Addition to 1360864 Heading F3A A fin-stabilized projectile, e.g. a mortar grenade, comprises: a casing 6 containing an explosive charge 6<SP>1</SP>; steel balls 7 embedded in plastics material 8; and a net or fibre layer 9 containing guide means 11, e.g. annular grooves. The fibre layer consists of textile, glass and/or metal fibres.
Patent GB-891246-A (GB)
Title: Magnetic pressure indicator
Inventor: PALL DAVID BORIS
IPC: H01H36/00
Filed: 1960-03-30
Abstract: 891,246. Filters; thermostatic clogging indicators. PALL CORPORATION. March 30, 1960, No. 11240/60. Class 46. The upper end of a cylindrical bore 15, Fig. 3, is in communication via ducts 20a, 20 with the inlet conduit to a filter (not shown), whilst its lower end is in communication with the outlet conduit (or atmosphere or a vacuum). A tubular piston 14 containing a magnet 10 is urged downwards in the bore by the pressure differential and upwards by a spring 16. Upon increase of the pressure differential beyond a predetermined maximum the piston is forced downwards, magnetic attraction of an upper magnet 11 slidable in a bore 27 above a partition 12 is thereby diminished, and the upper magnet with a cap 28 secured thereto is moved upwards by a spring 31 to protrude through an opening 34 in a drum 33. (When a sleeve 40 with its contents is omitted such protrusion serves as an indication of clogging). As shown, the cap 28 operates the switch arm 43 of an alarm-device switch 39 through a two-armed lever 42, 45, pivoted at 42a. If movement of the lever (and thereby of cap 28) is suitably limited by a setscrew 44 the upper magnet may be automatically re-attracted when the lower magnet returns to its upper position. Cap 28 has an outer skirt 29 with flange 32, the flange being engaged by a bimetallic element 37, 38, Figs. 2 and 3, to prevent rising of the magnet 11 when the temperature is abnormally low and the excess pressure is consequently due only to high viscosity of the liquid (e.g. oil) being filtered. An annular filter element 21 is interposed between duct 20 and the lower piston assembly. In Fig. 4 (not shown), the filter element 21 is dispensed with : instead, a collapsible bellows is mounted between the top of the piston 14 and bore 15, 10 or 11 need not be a magnet, but only of ,magnetic material.
Patent GB-790320-A (GB)
Title: A process for the bulk polymerisation of organic compounds
IPC: C08F4/32
Filed: 1955-04-19
Abstract: Monomers having the group CH2 = C < alone or in admixture with preformed polymers, are polymerized in bulk in the presence of a catalyst mixture comprising a hydroperoxide of the formula R-O-O-H and/or an acyl-alkyl peroxide of the formula R-CO-O-O-R, in which R represents a substituted or non-substituted aliphatic, aromatic, alicyclic, or heterocyclic radical, and at least one sulphinic acid, e.g. p-toluene sulphinic acid, sulphinic acid compound, or mercaptan, e.g. dodecyl mercaptan.  Monomers mentioned are styrene, triallyl cyanurate, diethylene glycol bis-(allyl carbonate), acrylic acid, vinyl acetate and maleic anhydride.  The catalyst mixture may also contain other peroxides such as benzoyl or lauryl, one or more heavy metal salts, e.g. copper acetonyl acetate, compounds with a labile halogen atom such as triethyl or dibutyl amine hydrochloride, and monohydric or polyhydric alcohols.  The preformed polymer may be an unsaturated alkyd prepared from maleic anhydride and glycol.  The polymers may be used for coating, e.g. by spraying, in dentistry, or in the manufacture of moulded articles.  Specification 710,535 is referred to.