baber/WOPTO huggingface dataset:
Patent GB-856473-A (GB)
Title: Method and apparatus for forming sheet metal blade sections
IPC: B21D53/78
Filed: 1959-04-01
Abstract: 856,473. Making gas turbine blades; stretch forming; fillings. CREEK, J. O. April 1, 1959, No. 11065/59. Classes 83 (2) and 83 (4). A method of forming sheet-metal sections for gas turbine blades comprises the steps of forming a rectangular sheet of metal 31, turning up and over at least one pair of opposed edges 29, 30 to form a flanged blank, loading the flanged blank with a mass of deformable filler material 32, for example, lead or " Cerrobend " (Registered Trade Mark), encompassed by the sheet and the flanges, placing the loaded flanged blank in a press between a concave and a convex die 19, 11, applying pressure to the dies to force the sheet to conform to the shape of the adjacent die, restraining the mutually presented edges of the flanges from separation in a direction transverse to the direction of die pressure and continuing the application of pressure to cause a lateral stretching of the sheet due to the lateral pressure exerted by the deformable filler material under the influence of the die pressure. The filled blank is positioned by tabs 27, 28 engaging recesses 34, 33 and end-pieces 13, 14 hold the filler in, the end-piece 14 being adjustable along a groove 17. The bent-over edges 29, 30 are gripped by saw-tooth ridges 35 along the die 11 as the dies are closed, lateral expansion of the filler material 32 stretching the centre of the sheet. The ridges 35 decrease in size towards the longitudinal edge of the die and may alternatively be formed on the concave die, the blank being appropriately positioned.
Patent GB-1284058-A (GB)
Title: Ground plane for interstitial conductors in a plated wire memory
Inventor: MOSER GERALD JOSEPH
IPC: G11C5/04
Filed: 1971-04-23
Abstract: 1284058 Magnetic storage devices NORTH AMERICAN ROCKWELL CORP 23 April 1971 [12 June 1970] 11093/71 Heading H3B A plated wire storage plane has interstitial, i.e. screening, conductors 13 running between the tunnels 6 into which the plated wires are inserted. The conductors 13 are all joined to a ground plane 24 which overlies their end portions. Fig. 1 shows two superposed, similar planes 2, 3. Drive conductors 14 pass orthogonally to the upper plated wires 9, and are joined to form loops by plated through holes 15, 16. The screening conductors 13 may be formed on a flexible substrate 4 together with the ground plane 24; this latter is folded back after assembly and adhered to the back of the substrate with glue 52, thus forming a grounded edge to the plane which is level with the upper drive conductors 14. The flexible substrate may be a copper clad polyimide, the screening conductors and ground plane being formed by etching the copper, though the use of a substrate is not essential. The plated wires may be joined at one end by a hairpin connector (not shown). The lower plane 3 is similarly constructed, the two planes being separated by insulation 19.
Patent GB-1497728-A (GB)
Title: Combined mounting and projection apparatus for aperture cards
IPC: G03B21/64
Filed: 1975-03-18
Abstract: 1497728 Mounting and projection apparatus for aperture cards HOECHST AG 18 March 1975 [20 March 1974] 11203/75 Headings G2J and G2X Film 11 and an aperture card 14 are fed to a position between a plunger 8 and a window 5 having a counter-pressure frame 6 and the plunger 8 is moved towards the window to cut off a frame from the film 11 by means of knives 7,7' and to press the severed frame against adhesive 16 on the card 14; the plunger 8 containing a condenser 12 which directs light from a source 18 through the frame for projection on to a screen 1 so that, for instance, the operator can compare numbers on the frames with numbers on the cards to make sure they are correctly paired. Preferably a transparent strip of film 13 presses the severed frame against the plunger 8 to keep it flat for projection. The projection system shown in Fig. 2 comprises light source 18 having a reflector 22, a condenser 19, mirror 20, the condenser 12, mirror 23, projection lens 24, inverting prism 25 and mirrors 26, 27.
Patent GB-1391111-A (GB)
Title: De-inking of printed wastepaper
IPC: C09D9/00
Filed: 1972-03-10
Abstract: 1391111 Deinking printed waste paper VYSKUMNY USTAV PAPIERU A CELULOZY 10 March 1972 [11 March 1971] 11234/72 Heading D2W A method of deinking printed waste paper comprises impregnating the paper with an aqueous solution containing from 0.2-2.0% by wt of a surfactant and 0.5-4.0% by wt of an alkaline substance, pulping the impregnated paper in the presence of 0.5-4.0% by wt of a hydrophobic aromatic or aliphatic hydrocarbon, or a hydroxy derivative thereof, and particles of an adsorptive carrier for ink released by the paper, and thereafter separating the carrier particles carrying ink released by the paper. The hydrophobic aromatic or aliphatic hydrocarbon may be a petroleum product or terpene. The carrier may be a metal soap of a fatty or bituminous acid. The carrier may include a loading material e.g. bentonite, china clay, barytes, gypsum, silica or magnesite. As shown, waste paper may be charged into a pulper 1 by conveyor 18 and the impregnating solution may be added from tank 2. After allowing for impregnation by the solution, the impregnated paper is pulped and the pulp discharged into tank 3. The pulp is then pumped through a separator 5 for removal of heavy contaminants, and a strainer 6 for removal of further residue, before discharge into tank 8 in which it is diluted to an appropriate consistency. The diluted pulp is then pumped through conical vortex separators 10, 13 to remove carrier particles carrying ink, the eluates from the separators being discharged to tank 14 and pumped therefrom to a further conical separator 16. Purified stock from the latter separator is recycled to tank 8. Stock from separator 13 is passed to a separator 21 designed to separate out finer contaminants.
Patent GB-454965-A (GB)
Title: Apparatus adapted for the application of surface coverings for roads
IPC: E01C19/21
Filed: 1935-04-12
Abstract: 454,965. Tipping vehicles. GENEVE, F., 188, Rue du Chateau des Rentiers, Paris. April 12, 1935, No. 11298. Convention date, June 14, 1934. [Class 108 (i)] [See also Groups I and X] A vehicle for spreading gravel, sand, &c. on roads, comprising a tipping body, is provided with a driven distributing roller 10, Fig. 3, having its axis coincident with the tipping axis 2 of the vehicle, or mechanically coupled to that axis, the bottom of the body being substantially in the same plane as the upper edge of the roller 10 and the discharge opening 5 in the body being situated substantially in a plane passing through the axis of the roller. The end of the body 1 consists of a stationary part 4 and a sliding plate 6 for regulating the height of the opening 5, movable sheet-metal pieces being provided for regulating the length of the opening. A frame may be provided to cover the roller 10 and so convert the body into an ordinary tipping body. A frame 18, Fig. 6, provided with a distributing roller may be mounted on the rear of an ordinary tipping body in place of the rear wall. A hopper 20 may be provided. The discharge opening, in this case, is adjusted or closed by means of an arcuate plate or door 32 carried by a pivoted lever 30, and the roller 10 is driven through the pivot shaft 2 and a chain 21, so as always to be rotated irrespectively of the displacement of the body 1.
Patent GB-772866-A (GB)
Title: Improvements relating to the control of chemical plant
IPC: C01C1/24
Filed: 1953-04-24
Abstract: 772,866. Automatic control systems. SIMONCARVES, Ltd., TODHUNTER, K. H., and LUFT, N. W. April 26, 1954 [April 24, 1953], No. 11328/53. Class 38 (4). To control the composition of a reaction mixture in a chemical plant, samples of the mixture are automatically withdrawn, appropriate proportions of a reagent added from a separate source, and resulting pressure, temperature or conductivity changes utilized to regulate the influx of a reaction constituent. In Fig. 1, sulphuric acid and ammonia are supplied through pipes 2 and 3 respectively to a saturator 1 for the production of ammonium sulphate. An electrically-driven rotary electric switch 24 operates the following valves in turn: valve 6 to fill a measuring cylinder 7 with a sample of the saturator liquor; valve 12 to transfer this sample to a test vessel 14; valve 9 to fill a measuring cylinder 10 from a supply of standard sodium carbonate solution 8; valve 13 to transfer the sodium carbonate solution to vessel 14; valve 15A to couple vessel 14 to a manometer 16; and valve 18 to empty vessel 14. The pressure periodically developed in vessel 14 is thus a measure of the acidity of the saturator liquor and this acidity is maintained between predetermined limits by manometer contacts 19, 20, 21 which electrically control a valve 23 in acid supply pipe 2. Relief valves 11a and 17 are closed from just before the admission of the sodium carbonate solution to vessel 14 until vessel 14 is emptied. In a modification, a continuous flow is maintained through vessel 14 and rotary switch 24 is dispensed with. Valve 23 may alternatively be controlled by the conductivity or temperature of the mixture in vessel 14. In this arrangement a second test vessel containing a mixture of sodium carbonate and a solution of standard acidity may be arranged in a balanced bridge circuit. When control is in accordance with the temperature of vessel 14, thermocouples or thermistors may be used. Specification 688,051 is referred to.
Patent GB-331590-A (GB)
Title: Means for operating electric luminous discharge tubes with high tension alternating currents
IPC: H05B41/232
Filed: 1929-01-07
Abstract: 331,590. Patent-Trouhand Ges. f³r Elektrische Gl³hlampen, and Wiegand, K. Jan. 7, 1929. Divided on 331,557. Supplying consuming devices.-In supplying alternating current of 15-100 periods per second and of over 500 volts by means of a transformer b to a single glow-discharge tube h of the type having internal electrodes and giving positivecolumn light, or to a number of tubes of this type arranged in series, a choking-coil i separate from the transformer is connected in the secondary circuit and produces a strong ignition surge as well as serving as a steadying impedance. Reliable ignition of tubes in aerodromes and misty places is thus ensured or the voltage of the transformer can be reduced. The secondary e of the transformer is earthed and an excess-voltage cut-out d comprising two metal plates is connected to the primary circuit. Prior arrangements with discharge tubes supplied in parallel from the secondary circuit and with choking-coils in series with the tubes to compensate for their length are referred to. Specification 150,317 is referred to.
Patent GB-640978-A (GB)
Title: Method of and means for cleaning heat exchangers in gas turbine installations
Inventor: HODGE JAMES
IPC: F02C7/08
Filed: 1948-04-26
Abstract: 640,978. Gas turbine plant. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. April 26, 1948, No. 11375. [Class 110(iii)] [Also in Group XIII] In a gas turbine plant comprising an exhaust gas heat-exchanger, materials deposited in the hot pass 5 are burnt off by temporarily raising the temperature of the working fluid after it has left the turbine. In this operation the exhaust from the turbine 2, Fig. 1, is reheated in a combustion chamber 8 before reaching the heat-ex-- changer. Oxygen, or catalytic material may be added in front of the exchanger at O. The pressure in the cold pass is relieved during the operation by means of a byepass 7. The combustion chamber 8 may be byepassed during normal running. Fig. 3 shows a plant in which a single combustion chamber 4 can, by means of valves 11- 14, be placed before the turbine 2 for normal running or after the turbine for the burning operation. In the latter case the compressor 1 is driven by a motor 6.
Patent GB-308905-A (GB)
Title: A new and improved application of ball bearings to engines, steering gear and the like
IPC: F16C11/06
Filed: 1928-04-18
Abstract: 308,905. Hammond, J. F., and Yoxall, J. April 18, 1928. Connecting-rods; pistons.-The ball bearing described in Specification 267,257, [Class 12 (i), Bearings &c.], is applied to piston connecting rods by forming the large ball A on the end of the rod and retaining it in position by a screwed cap E. In Fig. 2 the cap E forms a part of the piston.
Patent GB-728226-A (GB)
Title: Improvements in or relating to the bessemer process of refining metals, and apparatus therefor
IPC: C21C5/42
Filed: 1952-05-06
Abstract: 728,226. Converters; Bessemer process. CRUCIBLE STEEL CO. OF AMERICA. May 6, 1952 [May 17, 1951], No. 11395/52. Class 72. A side-blown Bessemer converter comprises a shell mounted for rotation and having a pair of hearths one acid lined, the other basic lined and separated by a neutral lining, a port for charging, discharging, and the escape of.gases, and tuyeres associated with the port for introducing an oxidizing gas under pressure. As shown, a cylindrical steel shell 10 has a basic lining 19 and an acid lining 18 separated by a neutral lining 20 in which there is an opening 14-16 closed by a plug of neutral refractory material and a steel plate, the plug and plate having a port 24. The shell is mounted on rollers 57 for rotation in such a manner that a metal charge may lie either on the acid or the basic lining and the port 24 may be in communication with one of a pair of stacks 61, 62. Side blowing tuyeres 25-28 may be inserted through the plate covering the opening 14-16 and other tuyeres may be inserted, manually or automatically through a plug covering the opening 24 (Fig. 7, not shown). The charge may be blown on the acid hearth, the slag removed, the converter rotated to bring the charge on to the basic hearth, new slag forming materials added and finally blown on the basic hearth. The blast supply line may run axially of the converter and be connected to the tuyeres by manifolds.
Patent GB-418137-A (GB)
Title: Improvements in or relating to compressed air delivery or service apparatus
IPC: F16K3/08
Filed: 1933-04-19
Abstract: 418,137. Air compressors ; valves; cooling. BRISTOL PNEUMATIC TOOLS, Ltd., Causeway Works, and WESCOMBE, H. C. C., 3, College Avenue, both in Fishponds, Bristol. April 19, 1933, No. 11449. [Class 8 (i).] A valve device is installed between a compressed air supply source, e.g. a compressor, and a tyre &c. to be inflated and serves to connect the tyre &c. to the air supply, to atmosphere for deflation or to a pressure gauge. The device comprises a cup valve a rotatable on a spindle which can be held in the desired position for inflation or deflation by a lever a<1> and when released is drawn by a spring s anchored to a member s<10> fixed on the spindle, into a position where the tyre and gauge communicate. The valve a has a recess a<11> in its face by which the tyre connection a<2> leading to the space around the cup valve is made to communicate through ports a<25> with one of the air supply, atmosphere or gauge while communication with the other two is shut off by the valve face. The valve is pressed by an adjustable plate s<6> &c. and a ball s<8> on to the end of the spindle on which it slides. The compressed air is cooled by passage through a vessel b, Fig. 6, having external ribs, a partition b<5> and drain connection b<7> and an outlet valve v the seating member of which is held in place by a cap v<4> adjustably depressed by a stud carried by the cover.
Patent GB-751891-A (GB)
Title: Improvements in or relating to the method of operating a reciprocating internal combustion engine
IPC: F02B3/02
Filed: 1954-04-21
Abstract: 751,891. Fuel-injection engines. TEXACO DEVELOPMENT CORPORATION. April 21, 1954 [April 29, 1953], No. 11478/54. Class 7(3) ARRANGEMENT AND OPERATION In a method of operating an engine comprising introducing air into the cylinder 10, Fig. 1, so that it swirls therein during the compression stroke at a controlled rate, injecting a liquid fuel into a portion of the swirling air from a nozzle 32 located at a height above the piston at T.D.C. of ¢-1/3 the mean clearance between the piston 26 and the cylinder head, and in a direction tangential to a circle 56, Fig. 3, coaxial with the cylinder and having a radius 58 of “-¢ of the cylinder radius, the fuel injection for full load is commenced before T.D.C. by half the injection duration plus 5-20 crank-angle degrees, and for part loads by an amount which varies with the load factor. The engine, which operates in the manner described in Specification 596,846, is provided with an inlet valve 20, Fig. 1, having a semi-circular shroud 21 which causes the inducted air to swirl around the cylinder axis, the fuel nozzle 32 connected to a fuel tank 36 via a transfer pump 38 and a fuel pump 34, and an ignition means, such as a sparking plug 44, as shown, or a glow plug. The fuel nozzle 32, Fig. 3, sprays fuel in a plane normal to the axis of the cylindrical combustion chamber and downstream of the swirling air, the cone-shaped fuel spray having an apex angle 62 of 40 degroes-60 degrees. The sparkmg plug 44 is disposed at the same height as the fuel nozzle and 35 degrees- 45 degrees downstream therefrom with the ignition point 0.25-0.75 inch inside the chamber periphery. FUEL INJECTION AND IGNITION The air swirl rate which may be 6-12 times the engine speed, is at least such that the air is impregnated with fuel in 70 degrees, (crankangle) or less and above that minimum rate is such that the product of the thermal and volumetric efficiencies is a maximum; where an engine operates below its maximum power the injection period may be prolonged. The fuel-spray penetration is twice to three times the chamber diameter as measured by an aluminium-foil penetrameter; the spray tip velocity is 0.6-1.2 inch for each degree of rotation of the fuel-pump cam and the fuel-air weight-ratio is between 0.4-0.8. The ignition source should be timed so that the sparking plug is active for at least 3 degrees-10 degrees after the commencement of fuel injection so as to ignite the first increment of the combustible mixture as soon as it is formed to' establish a flame front which ignites the mixture formed during the remainder of the injection period. The rate of injection should be constant during any one cycle.
Patent GB-1490083-A (GB)
Title: Control arrangements
IPC: G05D3/14
Filed: 1974-03-14
Abstract: 1490083 Measuring angular displacements electrically MARCONI CO Ltd 4 Dec 1974 [14 March 1974] 11484/74 Heading G1N [Also in Division G3]  In the control of the angular position of a member {aerial} 10, there is provided a potentiometer 1 having two sets, 8,8;3,3,3, of tappings, whose angular inter-relationship changes as the member moves, a plurality of reference potentials being applied to the tappings of one set, the resultant potentials derived from those of the other set and dependent upon member position being compared with respective ones of a set of pre-set voltages defining a desired member position to provide a position error signal. The member is driven until the error is annulled. As shown, the said one set comprises diametrically opposed tappings 8, 8, of member driven rotor 7, the tappings being coupled to a.c. or d.c. reference potentials from source 35, the position dependent resulting signals, at terminals 4, 5, 6, being compared, in comparators 19, 20, 21 with reference potentials at terminals 14, 15, 16, motor 33 being driven under control of signals from relay 31  unless all comparator outputs are zero, the comparators each providing an output on one or other of lines 22, 23 dependent on the relative magnitudes of its inputs, unless such inputs are equal. To derive the reference potentials there may be provided a second potentiometer 11, whose diametrically opposed rotor tappings receive the reference potentials from source 35, the rotor 17 being positioned in accordance with the desired member position, the pre-set voltages appearing at terminals 14-16. The rotor 17 may be replaced by a set of diametrically opposed tapping points, remotely, digitally, controlled relay switches controlling their selection. The circumferential resistance track 12 may be replaced by a set of discrete resistors, the junction between each of which supplies a tapping point. The rotor 7 has two or more contact points, three or more position dependent signals being produced. Potentials from source 35 may be applied to tappings 3 and 13 of the potentiometers, the voltages developed across the two rotors being compared.
Patent GB-114880-A (GB)
IPC: B60F1/04
Abstract: 114,880. Dutton, F. H. April 13, 1917. Locking-apparatus for steering gear.-A locomotive for a light railway is provided with a fourwheel bogie 17, Fig. 1, running on a rail track 1 and with one or more pairs of rubber &c, tyred driving wheels 5 running on the ground at each side of the rail track. In order to allow reversed movement on the track 1, the stub axles 22 of the driving wheels 5, Fig. 3, are actuated from an auxiliary steering wheel 21 through connexions 23. Steering of these wheels is prevented when the pivoted stops 24 are brought into contact with stops 25 on the hubs of the wheels by actuating the hand lever 26 and connexions 27. In a modification in which two pairs of driving wheels are used, the steering axle 52 of each pair of driving wheels 5, Fig. 7, are connected by linkwork 53, and on each of the bogies 45 is a disk 55 provided with a slot 56 which, is engaged by a pin 57 on one of the connecting links 58. The slots 56 are perpendicular to each other and each disk 55 is rotatable and connected to the other by chain gearing 59. The necessary rotation of the disks to render them alternatively operative and inoperative may be effected by the reversing control of the locomotive.
Patent GB-1184833-A (GB)
Title: Friction-Stay Fastener for Windows
IPC: E05C17/34
Filed: 1967-03-13
Abstract: 1,184,833. Stay fastener for windows. F. BANK. 13 March, 1967 [17 March, 1966], No. 11554/67. Heading E2F. A jointed-folding friction-stay fastener for opening, closing and locking windows or the like, comprises two levers 4 and 5, friction jointed at one end, and pivotally secured at the other ends respectively to the window frame 2 and casement 1, characterised by the levers 4 and 5 having different lengths so proportioned that, when downwardly turned around their jointed axis, they pull and hold the casement window firmly against the window frame. As shown, the lever 4 is pivotally attached at one end to the bracket 3 on the casement window I and at the other end to lever 5, which in turn is attached to the window frame 2 through screw 9 and spacer 6. Friction discs 7 are compressed against inner surfaces of levers 4 and 5 by means of a rivet or screw 11 and ball-nut 8.
Patent GB-1066907-A (GB)
Title: A method and an apparatus for welding textile products and the products welded thereby
IPC: B29C65/04
Filed: 1965-03-18
Abstract: 1,066,907. Finishing edges and. seaming non- metallic sheet material. BRITISH ENKALON Ltd. March 18, 1965 [March 18, 1964], No. 11621/65. Heading B5K. [Also in Division D1] Knitted fabrics which are at least partially derived from a thermoplastic yarn 2, e.g. polyamide, are welded by forming at least two rows 5, 6 of stitch welds 4 each row extending along a course of the fabric and being spaced apart from an adjacent row, each stitch weld 4 extending over at least two stitches of the knitted fabric and the stitch welds 4 of each row overlapping the stitch welds 4 of the adjacent row. The invention is applicable to joining fabrics or finishing the edges thereof. In the embodiment shown, a polyamide knitted fabric 1 is welded to another knitted fabric (not shown) and the distance between the rows 5, 6 is about twice the distance between two adjacent courses. In the longitudinal direction of the seam the welds 4 each extend over four stitches of the fabric 1. Preferably, the seam 3 is welded by high-frequency current by dash-like parallel electrodes (7), Fig. 2 (not shown).