baber/WOPTO huggingface dataset:
Patent GB-956275-A (GB)
Title: Improvements in or relating to ultra high pressure blast furnace
Inventor: RICE OWEN R
IPC: C21B5/00
Filed: 1960-06-08
Abstract: 956,275. Blast furnaces. KOPPERS CO. Inc. June 8, 1960 [Nov. 19, 1959], No. 20143/60. Heading F4B. Blast furnace equipment includes a downcomer 31 leading to a dust chamber 131 and an orifice washer 135 of the type disclosed in Specification 880,123, a connection 197 from the top of the latter to the charging hopper 125, and orifice plates 137, 139, 141, 143 in the washer 135 each having slide valves 145, 147 controlling the orifice sizes and therefore the pressure in the blast furnace 21. Valves 145, 147 slide into and out of housings 153, Fig. 2, on diametrically opposite sides of wall 154 by means of rods 152 each operable by a drive member 157. The orifice openings are controlled by conventional diaphragm regulating apparatus subject to the pressures in the dust catcher and a throttle washer disposed below the orifice washer, Fig. 7 (not shown). The furnace shell 89 is a continuous structure of welded plates to which are welded vertically disposed cooling boxes 109 of U-shaped section. Concrete supports 107 for the hearth 67 have air cooling channels 108 extending therethrough. Charge material from bunkers 33 passes through weighing hoppers 37 into skips 45 for delivering into the cylindrical hopper 49 equipped with ball valves 53, 55. Valves 199 and 201 respectively control the supply of gas under pressure through connection 197 and the venting of such gas before ball valve 53 is opened. Material entering the furnace is constrained to form a substantially conical heap by the hopper extension 63 and the circular bands 57 on support members suspended by arms 59. The air-heating stoves 28 may be of the type disclosed in Specification 879,345. Specification 880,123 also is referred to.
Patent GB-531056-A (GB)
Title: Improvements in or relating to means for mounting electrical accessories
IPC: H02G3/10
Filed: 1939-07-11
Abstract: 531,056. Switch bases. ARNOLD, C. L., DOWSETT, R. W., and M. K. ELECTRIC, Ltd. July 11, 1939, No. 20173. [Class 38 (v)] [Also in Group XXXVI] A switch is mounted on a bar or plate 6 separate from a block or frame 1 which is open back and front, the plate 6 being secured to the wall by a screw 8 and the block 1 being secured by a flange 13 on the switch S engaging a shoulder 12 on the rim of the block. Projections 6a on the plate may fit in grooves 3 in the block and the grooves may be terminated to form shoulders 5 facing either upwards or downwards or may run right through the block.
Patent GB-732776-A (GB)
Title: Improvements in or relating to electrical circuits using trigger cold-cathode valves
Inventor: GOULDING FREDERICK SYDNEY
IPC: H01J17/04
Filed: 1951-08-28
Abstract: 732,776. Automatic regulation. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 19, 1952 [Aug. 28, 1951], No. 20214/51. Class 38 (4). [Also in Group XL (c)] A voltage-stabilizing circuit, of the type employing a valve connected across the voltage source and to which a portion of the voltage supplied is tapped off to control the current through the valve in such a manner that an increase in voltage increases the current through the valve, thus increasing the load on the source and reducing the voltage obtained therefrom, comprises a cold-cathode valve connected to operate as an amplifier. Fig. 1 illustrates the basic amplifier circuit wherein the positive voltage to be amplified is applied to the integrating circuit 6, 7, the voltage at the trigger electrode 3 thus building up until the valve discharges, discharging the integrating circuit and also quenching itself by virtue of the large anode resistor 9. As a result, the period between successive discharges and thus the mean current through the valve is a function of the voltage to be amplified. A condenser 12 is provided to average out the pulses of current through the valve. A further resistor 18 and rectifier 17 may be provided to increase the stability of the circuit, the resistor 18 being of large value (e.g. 200 megohms) and so providing a small continuous discharge which is insufficient to strike the main discharge but is sufficient to produce enough ionization to illuminate unstable operation. The valve employed may alternatively be of a type employing a " keep-alive" electrode. In the circuit shown in Fig. 3, the voltage source to be controlled is connected between terminals 34 and 35 and the output is taken from terminals 36 and 37. A portion of the output voltage is tapped off by a potentiometer chain and applied to the trigger electrode of the valve 19 which is of the type employing a " keep-alive" electrode 21. An increase in the input voltage results in an increase in the mean current through the valve and thus tends to reduce the output voltage due to the increased voltage drop in the resistor 32. In an alternative arrangement, Fig. 4 (not shown), a circuit identical to that shown in Fig. 1 is connected in parallel with a potentiometer chain an adjustable tapping on which is connected to the trigger electrode through the integrating circuit and in series with a voltagedropping resistor, the whole being connected across the voltage source to be stabilized, the stabilizedvoltage being taken from the lowpotential end of the dropping resistor.
Patent GB-1128814-A (GB)
Title: Improvements in or relating to electro-precipitators
Inventor: DYLA JOHN FLORIAN
IPC: B03C3/82
Filed: 1965-05-13
Abstract: 1,128,814. Electrostatic precipitators. LODGE-COTTRELL Ltd. 5 May, 1966 [13 May, 1965; 11 Sept, 1965], Nos. 20222/65 and 38896/65. Heading B2J. An electrostatic precipitator comprises a plurality of connector body portions 22, Fig. 5, each supported on a plurality of columns 24 integral therewith, adjacent 'body portions being connected by an expansion joint 34, Fig. 2. Five concrete columns 28 of streamline section extend inside the body portion 22 as far as its upper wall 30. The expansion joint 34 comprises brackets 36, Fig. 7, keyed at 44, Fig. 6, to opposed wall portions 38 of the body portions. An endless strip 46 of siliconised glass-fibre cloth extends along and between the arms 41 of the brackets 36, a central portion being of convex cross-section and secured to the brackets by metal strips 48 and nuts 45, 50. A metal cover 54 is bolted to a surface 59 of one wall portion 38 which faces outwardly. In further embodiments, separate inlet and outlet mouthpieces are provided for each body portion; or the body portions may be of differing width, or e.g. three body portions may be provided in a straight line. A further wall may be provided in one body portion adjacent the expansion joint to permit isolation of each body portion for periodical maintenance.
Patent GB-1287241-A (GB)
Title: Strip of electrical terminal blanks
Inventor: PLANA ROBERTO
IPC: H01R/
Filed: 1971-04-19
Abstract: 1287241 Making terminals AMP Inc 19 April 1971 [14 Feb 1970] 20241/71 Heading B3A [Also in Division H2] A row of electrical terminal blanks 1 is supported between side carrier portions 2, each blank being connected to an adjacent bank by a further carrier portion 8. After removal of the carrier portion 2 terminals are formed by folding the body part 4 about its transverse centre line to form two back-to-back receptacles for mating with a flat tab terminal. The carrier portion 8 is then cut away to free the terminal from the strip. Leg portions 7 form a single tapered leg 11, which is inserted into an aperture in a carrier plate and possibly soldered therein.
Patent GB-625389-A (GB)
Title: Improvements in or relating to combustion apparatus
IPC: F23R3/26
Filed: 1947-07-28
Abstract: 625,389. Generating combustion products under pressure. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 28, 1947, No. 20281. Convention date, July 30, 1946. [Class 51 (i)] Air for an annular combustion chamber 18 is led to wall perforations 38 along passages between cylindrical partitions 62. The air enters these passages through rotatably adjustable annular ported valve plates 70 and ports in seating plates 40. The shapes of these ports are such that by rotation of the valve plate 70 the division of the total air between the inner and outer passages is varied. To this end, the ports in the plate 40 are rectangular and those in the plate 70 are oblique parallelograms.
Patent GB-748230-A (GB)
Title: Improvements in or relating to transformers
IPC: H01F27/34
Filed: 1953-07-31
Abstract: 748,230. Transformers. WAYNE KERR LABORATORIES, Ltd., CALVERT, R., and MAYO, C. G. July 21,1954 [July 31, 1953], No. 20282/53. Class 38 (2). In order to maintain an accurate voltage ratio between two transformer windings the primary winding is arranged in two halves 12, 15 passing through the windows 13, 14 of a closed magnetic core 10 on opposite sides thereof so that the leakage fluxes from the two halves cancel along a line 16 through the window between the two halves, two secondary windings 17 each being disposed with respect to the zero leakage flux line 16 so that the effects of the leakage fluxes on the secondary windings tend to cancel, a final adjustment being made by a variable impedance 20, 21 connected in circuit with the half 15 of the primary winding which enables the effect of any residual leakage flux to be minimized. Alternatively a variable impedance may be connected across both halves of the primary winding. A few extra turns may be wound on the half 15 of the primary winding before assembly and finally removed by hand as required for coarse initial trimming. In a further embodiment the secondary windings may be wound one on each of the side arms of the core.
Patent GB-212823-A (GB)
Title: An improved reflecting system for use with tubular spirit levels
IPC: G01C9/32
Filed: 1923-08-09
Abstract: 212,823. Tallack, H. T. Aug. 9, 1923. Levels.-Means for simultaneously observing both ends of the bubble of a spirit level comprise a plane mirror D disposed at an angle of 45‹ over one end of the bubble C and extending over the whole width of the tube B, and a doubly-reflecting prism E over the other end of the bubble, extending from one side of the tube to the centre. The reflectors are mounted in a box A secured to collars F on the tube. Specification 17944/10 is referred to.
Patent GB-830442-A (GB)
Title: Improvements in or relating to the production of shaped articles, particularly filaments, of synthetic polymers by melt extrusion processes
IPC: D01F8/12
Filed: 1956-06-29
Abstract: Shaped articles, particularly filamentary materials, comprise a core of a synthetic polymer containing amine end groups and a surrounding contiguous sheath of a synthetic polymer essentially free from amine end groups, at least one of the polymers having fibreforming characteristics.  A polymer "containing amine end groups" is defined as a polymer in which the proportion of amine end groups is 50 or more equivalents per 106 g. of polymer, and a polymer "essentially free from amine end groups" is defined as a polymer containing fewer than 50 amine end group equivalents per 106 g. of polymer.  The articles may be made by simultaneously extruding through the same orifice the molten polymer containing amine end groups as a core and the molten polymer essentially free from amine end groups as a surrounding sheath.  The preferred polymers are the polyamides, particularly polyhexamethylene adipamide.  Polyureas derived from a diisocyanate and a diamine, polythioureas, polythioamides, polysulphonamides, polyimides, poly-4-amino-1,2,4-triazoles and copolyesteramides may also be used.  The core-forming and/or the sheath forming polymer may be a blend of two or more polymers. Thus the amine content of the core polymer may arise from a blend of a polymer containing amine groups and another polymer with few or no amine groups as, for example, a blend of a polyamide and a polyester, such as polyethylene terephthalate.  While polymers containing primary amine end groups are preferred, polymers containing secondary and tertiary amine end groups may also be used.  Thus an N-amino-alkyl morpholine can be used as a viscosity stabilizer in the preparation of polyamides in order to obtain polymers with tertiary amine end groups.  In order to obtain a product which can be dyed with acid dyes, the overall amine concentration in the two-component filament should be 80-400, preferably 100-200, equivalents of amine end groups per 106 grams of polymer.  In an example, a polyhexamethylene adipamide containing 26 and 135 equivalents of carboxyl and amine end groups, respectively, per 106 grams of polymer is spun as the core of a two-component fibre simultaneously with a polyhexamethylene adipamide having 43 and 74 equivalents of amine and carboxyl end groups, respectively, per 106 grams of polymer as the sheath component, using the apparatus described in Specification 830,441.  The pump speeds for the two components are adjusted to give a sheath-core weight ratio of 30/70 and the polymers are spun at 285 DEG  C.  Two component synthetic fibres made according to the invention can be dyed deep fast colours with acid dyes. Specifications 639,893, 687,036 and U.S.A. Specification 2,130,948 also are referred to.
Patent GB-237742-A (GB)
Title: Improvements in or relating to variable condensers for use in wireless systems
IPC: H01G5/38
Filed: 1924-08-28
Abstract: 237,742. Mitchell, G. A. Aug. 28, 1924. Condensers comprise, in combination, a knob, dial, or equivalent adapted for attachment to a variable condenser, a vernier and means for adjusting the same in such a manner as to form a single detachable unit, capable of being easily applied to any existing condenser not having a vernier. Preferably the vernier comprises a fixed and a movable plate or plates. In Figs. 1 and 2, the vernier comprises a fixed and a movable plate 1, 2, the fixed plate 1 being secured to the dial 4 by screws and having a hole 6 to admit the spindle 7 of the main condenser. The movable plate 2 fits rotatably over the spindle and is separated by a washer 10 from the plate 1 and, if necessary, by a washer 11 from the dial 4. Operation is effected by a knob 13 working in an arcuate slot 14 in the dial, the knob being long enough to obviate hand capacity effects. The movable plate engages the spindle 7 for connection with the circuit, whereas the plate 1 engages a spring contact 15 which also serves as a stop by engaging lugs 19 on the plate 1. In Figs. 5 and 6, the movable, plate 22 carries a knob 26 for adjustment, and is pressed by a spring 27 against a washer 35 serving to connect it in the circuit. The fixed plate 20 is in connection, by means of screws 31, with a ring 30 apertured at 32 to receive a plug 33 for connection in the circuit. A pin or the like may be placed on the dial 4 to limit the movement of the plate 22 which also carries a pointer 29 co-operating with the index on the dial.
Patent GB-1421931-A (GB)
Title: Wide-angle lens system of retrofocus type
IPC: G02B13/04
Filed: 1973-04-30
Abstract: 1421931 Retrofocus wide angle lens system ASAHI KOGAKU KOGYO KK 30 April 1973 [1 May 1972] 20448/73 Heading G2J A wide angle lens system of retrofocus type with its back focus at least 1.25 times its focal length F comprises eight lenses arranged in seven groups as shown in Fig. 1 and satisfying the following conditions: (1) F/0.95 < |F 1.2 | < F/0.5; F 1.2  < 0 (2) F/0.12 < |F 1.2.3.4 |<# (3) 0.23 F < d 10  < 0.32 F (4) 2 < r 9 /r 10 < 3 (5)0.8 F < r 11  <F where F 1.2...i  is the focal length of an assembly consisting of the first lens to the i<SP>th</SP> lens. Optical data are given.
Patent GB-328503-A (GB)
Title: Improvements in and connected with valve gear for gas meters
IPC: G01F3/22
Filed: 1929-07-03
Abstract: 328,503. Kromschr÷der Akt.-Ges., G. May 6, 1929, [Convention date]. Gas meters.-In a dry diaphragm gas meter of the type in which the slide valves are operated from the bellows by flag rods and rock arms and in which the valves are parallel or in alignment, the rock arms are arranged to operate the valves by direct engagement. Rock arms 5 operated by flag rods 4 are directly connected to pins 7 on the valves by means of slots 8. The valves are guided by rods 9 fixed at one end to an end wall 11 of the meter, as at 10, Fig. 1, and at the other end are secured to a lug 20 on a support 21 which forms a bearing for a crank 1 operating the counting mechanism and actuated from the rock arms by rods 3. The guide rods 9 pass through grooves 13 in the valves, which grooves contain grease or other lubricant.
Patent GB-205377-A (GB)
Abstract: 205,377. Marks, E. C. R., (Toledo Scale Co.). Nov. 28, 1922. Indicating-mechanism. - In a weighing- machine of the kind in which an indicator is operated from the weighing mechanism by means of a rack meshing with a pinion connected to the indicator, the rack is supported by a member which is adjustable angularly as well as in a direction normal to the plane of movement of the lever upon which it is mounted. An arm 9, Fig. 3, extending laterally from the main lever of a weighing machine is provided with two lugs 10, 10<1> carrying a rod 11 upon which a plate 13 is pivotally mounted. A member 14 is attached to the plate 13 by screw 15 passing through slots 16 which are elongated to allow of adjustment. A resilient plate 22 clamped in a kerf in the member 14 carries a tubular member 26 which is internally threaded to receive the end of the rack member 27, and is split longitudinally and provided with a clamping screw 30. One end of the rod 11 is carried by a stud 18, Fig. 4, which is vertically adjustable within the lug 10<1>, a set screw 20 being provided to prevent axial movement of the rod. Lateral movement of the plate 13 upon the rod 11 is prevented by a sleeve 23 and collar 24 which are mounted upon the rod and locked in position by a screw 25. The centre of gravity of the member 14 is arranged to lie on the pinion side of the rod 11 so as to hold the rack in engagement with the pinion.
Patent GB-1533147-A (GB)
Title: Tilting supports for handling baskets
IPC: B65G7/08
Filed: 1976-05-18
Abstract: 1533147 Handling baskets tilting apparatus REGIE NATIONALE DES USINES RENAULT 18 May 1976 [26 May 1975] 20546/76 Heading B8E Tilting apparatus for handling baskets comprises a pivoting cradle 2 to support a basket mounted on a supporting frame 1 by means of bearing shoes 7 having inclined and horizontal 10, 11 portions connected by rounded portion 12. The rolling portions of the shoes 7 and cradle frame 2 are provided with interengaging elements 14, 14<SP>1</SP> of solid cylindrical rods to prevent slipping and the arrangement is such that the axis of pivoting follows parallel to the line of movement G1-G2 of the centre of gravity of a full basket. Stops 15, 16 limit the tilting while a crossmember 9<SP>1</SP> of the pivoting cradle is located below the pivoting axis to act as a counterweight.
Patent GB-150896-A (GB)
Title: Improved apparatus for obtaining moving colour effects suitable for advertising, displaying and the like
IPC: G09F11/00
Filed: 1919-08-21
Abstract: 150,896. Morley, V. S. Aug. 21, 1919, Moving and changing apparatus.-Relates to means for obtaining rainbow and other changing colour effects which depend on movement of the observer relatively to two fixed screens. of which the front one is partly transparent. If the rear screen is formed of inclined bands of two colours alternating, as shown in Fig. 3, and the front screen is formed with alternate dark and transparent bands equal in width to the coloured bands as shown in Fig. 2, the observer sees horizontal coloured bands which move vertically in opposite directions in the two halves of the screen as he changes his position. If the rear screen is as shown in Fig. 7, with the coloured bands narrowed in one part and widened in the other, the observer looking through the screen shown in Fig. 6, sees coloured bands moving horizontally in opposite directions. Fig. 10 shows a rear screen combining the opposite inclination of the coloured bands with the narrowing and widening of them. In this case the observer sees the effect shown in Fig. 11, where one set of bands moves downwards to the left and the other upwards to the right. Any desired apparent movement in any part of the area can be predetermined in this manner. The front screen may alternatively have transparent spaces of varying width and inclination, and variable and curving movements may thus be obtained.
Patent GB-422767-A (GB)
Title: Improvements in and relating to propelling pencils
IPC: B43K21/08
Filed: 1934-07-13
Abstract: 422,767. Pencil holders. BRENNER, L. F., 10, Herne Hill Mansions, Herne Hill, London. July 13, 1934, No. 20573. Convention date, July 13, 1933. [Class 146 (iii)] A propelling pencil comprises propelling and expelling mechanism in which a lead-gripping tube slides against the action of a spring on a driving rod which is adapted to engage a threaded sleeve, and in which the tube is arrested by an abutment inside the tip at its forward limit of motion, and the sleeve is supported inside the barrel by a longitudinally fluted member forming a star-shaped reservoir for spare leads. Secured to the end of a driving rod j is a crosshead k, which passes through a slotted tube g and engages a threaded sleeve d. The sleeve d is secured to the pencil barrel a by a longitudinally grooved tube f. A lead-holding tube h is slidably mounted on the rod j and is provided with a collar m which serves to guide it in the tube g ; between the collar m and the crosshead k lies a spiral spring l. The forward end of the tube h is flattened to prevent rotation of the flat rod j, and two tongues h<1> are bent down to engage in a slot o in the rod to prevent the spring l from forcing the rod out of the tube h.
Patent GB-1298612-A (GB)
Title: A process for cooling recycle liquids in a sulphuric acid contact plant
IPC: C01B17/76
Filed: 1970-04-29
Abstract: 1298612 Cooling recycled liquors CHEMIBAU DR A ZIEREN GmbH & CO KG 29 April 1970 [30 April 1969] 20585/70 Heading C1A Recycle liquid, associated with the contact process manufacture of H 2 SO 4 , is cooled by direct contact with the end gas from the contact plant. The recycle liquid will normally be the recycled acid used for washing the SO 2  containing gases supplied to the contact plant, but may be water which after cooling in the manner of the invention is itself used to cool the circulated wash-acid. The end gas may itself be cooled before being used to cool recycled liquid. In the drawing dust-free roaster gas is cooled in tower 2 by trickling with dilute H 2 SO 4  then passes through 3 to scrubbing tower 4 where it is washed and cooled with recycle H 2 SO 4 . The gas then passes via wet gas filter 6, drying tower 8, heat exchangers 9 and 10 to contact chamber 11 wherein SO 2  is converted to SO 3  in four stages. The reacted gas is then supplied through heat exchanger 9 to absorber 14 where SO 3  is absorbed in conc. sulphuric acid. Offgas leaving absorber 14 is in heat exchanger 16 and then supplied to cooling tower 18 where the washing acid from cooling tower 4 is cooled, mainly by evaporative cooling, and pumped back to cooling tower 4. The end gas substantially saturated with water vapour leaves tower 18 via line 20 and may be water washed to remove the small amount of SO 2  contained therein.