baber/WOPTO huggingface dataset:
Patent GB-607944-A (GB)
Title: Improved process for the reduction of iron ores in the blast furnace
IPC: C21B5/00
Filed: 1939-10-25
Abstract: In the reduction of iron ores in a blast furnace as described in Specification 442,478 [Group XII], a fixed temperature is provided between the combustion chamber outside the furnace and the gasification zone in the latter in order, on the one hand, to prevent damage to the combustion chamber and accessories due to the excessive temperature of the combustion and to secure, on the other hand, the temperatures needed for the processes in the gasification zone, the desired limits of the step of temperature being achieved by strict calculation and adjustment of the amount of free oxygen needed for the complete combustion in the combustion chamber and the desired reactions in the gasification zone of the furnace at the respective temperatures.  Just as much free oxygen is introduced with the gas mixture as needed to convert the entire solid carbon of the charge of the furnace into carbon monoxide and to decompose the whole or part of the steam, while the whole or part of the carbon dioxide passes unaltered through the furnace.  To provide the necessary heat for drying, pre-heating, or pre-gasifying the descending charge, additional amounts of heat may be introduced at one or a number of higher levels in the furnace, for one or a number of combustion chambers which generate combustion gases, the temperatures of which correspond to or exceed the furnace temperature prevailing or required at the point or points of introduction of those gases.
Patent GB-427187-A (GB)
Title: Improvements in and relating to the upholstering of vehicle bodies
IPC: B60R13/02
Filed: 1933-10-17
Abstract: 427,187. Securing upholstery panels in position. BRIGGS MANUFACTURING CO., 11631, Mack Avenue, Detroit, Michigan, U.S.A.-(Assignees of Hund, H. E.; 2309, South La Salle Gardens, Detroit, Michigan, U.S.A.) Oct. 17, 1933, No. 28715. Convention date, Nov. 4,1932. [Class 52 (iv)] [See also Group X] Fastening devices 35 for securing a fabriccovered non-metallic panel 30 to a vehicle body are secured to the panel by forcing projections 33, integral with the fastener, into the panel. Individual fasteners may be used or a series can be formed from a strip of metal.
Patent GB-504557-A (GB)
Title: Improvements relating to optical polarizing apparatus
IPC: G02B5/30
Filed: 1937-10-21
Abstract: 504,557. Optical polarizers. LAND, E. H. Oct. 21, 1937, No. 28804. Drawings to Specification. [Class 97 (i)] Polarizing-apparatus, particularly intended for use as an anti-glare device on vehicles or in stereoscopic projection and viewing apparatus, comprises a plane polarizing element in the form of a transparent sheet in which is embedded optically oriented particles, combined with a bi-refringent sheet producing a predetermined retardation between the components which it transmits. This retardation is preferably a quarter wave-length so that the bi-refringent sheet can be used to convert the plane-polarized beam produced by the polarizing sheet into a circularly-polarized beam. The two sheets may be joined together, for example by cement. For use as an antiglare device, the lamps of vehicles are provided 'with screens consisting of the compound sheets above described, so that they emit circularly-polarized beams and the driver is provided with a visor, for example on the windscreen, consisting of a similar compound sheet with the elements so arranged that the sheet is opaque to the light emitted by the lamps. For stereoscopic projection, each of the projectors for the two component pictures is provided with a circular polarizer as above, one beam being polarized clockwise and the other anticlockwise, and the observer is provided with a viewing device, also consisting of a pair of circular polarizers, each of which transmits the beam appropriate to the eye in front of which it is placed.
Patent GB-930003-A (GB)
Title: Process for the production of shaped articles from non-flowing metal powders
IPC: B22F1/148
Filed: 1959-08-24
Abstract: A non-flowing metal powder is mixed with a granulating agent, e.g. ethylene glycol or camphor, and a solvent and after removal of excess solvent is formed into a flowing granulated material having a particle size above 0.15 mm.; the remaining solvent is then evaporated, the material pressed, the granulating agent evaporated and the material sintered to form the required shaped article.  The granulation is preferably performed by screening and the evaporation of the granulating agent is effected by heating and/or treatment under reduced pressure.
Patent GB-899365-A (GB)
Title: Improvements in or relating to work holders for use with machine tools and the like
IPC: B23Q16/02
Filed: 1960-08-22
Abstract: 899,365. Machine-tool details. SCHABOT, B. W., MICHIE, B. A., and MILLER, J. M., [trading as A. A. GAGE CO.]. Aug. 22, 1960 [Aug. 20, 1959], No. 28921/60. Class 83 (3). An indexable work-holder comprises equallyspaced wedge-shaped co-operating teeth 33, 34 on a rotary table 28 and a base member 30, 20, and a helical-track 51 and a rotary means 52 for moving the teeth out of engagement. The table has a number of tapped holes 32 for the attachment of workpieces. The 360 teeth are inclined along the radial direction at an angle of about ¢ degree and are indicated by a scale engraved on a flange 64. The helical tracks 51 are formed in a vertically-movable post 41 around which the table can rotate, downward movement of the post causing clamping of the table by a head 45<SP>1</SP>. The tracks are engaged by pins 52 on a ring 53 which can be oscillated by a handle 54. The teeth 33, 34 are sealed off from dust, the communication between spaces 68 and atmosphere being by way of filters 75. If movement of a fraction of a tooth space is desired, an adaptor table 29 is held on the table 28 by clamps 83. Attached to the table 29 is a screw 95 engaging a block 90 on the table 28. Rotation of the screw rotates the table 29 on the table 28 until a resilientlymounted abutment on the table 29 moves a gauge block against a locating peg 92 on the table 28. The engagement pressure is indicated by a dial gauge.
Patent GB-1282650-A (GB)
Title: Antibiotic 593a
Inventor: GITTERMAN CHARLES OSCAR
IPC: C12P17/16
Filed: 1970-06-15
Abstract: 1282650 Antibiotic 593A MERCK & CO Inc 15 June 1970 [18 June 1969] 28942/70 Heading C2A The invention relates to an antibacterial and anti-tumour antibiotic, Compound 593A, which is a base forming salts with organic and inorganic acids; elementary analysis C=40À23%, N= 12À76%, H=5À85%, O=8À50%, Cl=32À82% and has empirical formula C 7 H 11 N 2 OCl; is soluble in C1-C6 alcohols and chloroform; forms hydrochloride having I.R. spectrum shown in Fig. 1; forms acetyl derivative m.pt. 228-229‹ C. and I.R. spectrum as in Fig. 2 (not shown). The antibiotic 593A is produced by cultivating a Compound 593A-producing strain of Streptomyces griseolutens, especially S. griseolutens NRRL 3412, in an aqueous nutrient medium and recovering the antibiotic from the clarified broth. Antibiotic 593A may be recovered from the clarified broth by extraction with a water-immiscible solvent, e.g. butanol or chloroform. Alternatively, the broth may be lyophilised and extracted with a water-miscible solvent such as methanol or ethanol. Further purification is (a) by adsorption on basic alumina or silica gel and elution with ethyl acetate or methanol or (b) recrystallization from hot methanol. The hydrochloride is prepared by treating the base with HCl and an acetyl derivative is obtained by treating the base with acetic anhydride and pyridine.
Patent GB-1195021-A (GB)
Title: Improvements in and relating to Control Systems for Hydrostatic Coupling.
IPC: F16D31/04
Filed: 1966-06-28
Abstract: 1,195,021. Clutch control. S.R.M. HYDROMEKANIC A.B. 19 June, 1967 [28 June, 1966], No. 28952/66. Headings F2C and F2L. A hydrostatic clutch 13 is in series with an hydraulically engaged friction clutch 15 controlled by a valve 40 which is itself controlled by a pilot valve 45 which also controls supply of fluid to the valve 40. The pilot valve also provides a continuous supply of cooling fluid to the low pressure side of the hydrostatic clutch. As shown the hydrostatic clutch comprises a plurality of gear pumps each having a pair of intermeshing gears carried by a driving or driven housing 12 and with one gear of each pair meshing a sun gear 14. Sun 14 has clutch plates 31 engageable with a plate 32 carried by a driven, or driving, shaft 18 by means of an annular piston 33 controlled by the centrally disposed valve 40. Liquid from the pilot valve 45 is supplied through a passage 43 to a chamber 54 of the valve 40, urging a valve sleeve 51 to the left against spring loading to close the clutch engaging servo to a drain groove 59 and open the chamber 54 to a central chamber 56 which in the shifted position of the valve sleeve is open to the clutch servo chamber. The pilot valve has a spool 71 controlled either by a solenoid or, as shown, by a servo piston 91 suppliable with control pressure from a remote source to shift the spool to the left against spring loading. Pressure from an independent souree is supplied to a port 95 of the valve which, in all positions of the valve spool is open to a port 97 providing restricted communication with the low pressure part 28 of the hydrostatic clutch housing, the housing being in communication via a passage 100 with a port 98 permanently opened to a drain port 96 to give a continuous cooling flow of fluid. The pilot valve spool 71 is spring urged to the right to open a control chamber 83 (leading to the chamber 54 of the central valve 40) to the drain port 96, so that the clutch 15 is disengaged, and in its left hand position the control chamber 83 is open to the pressure port 95 so that the clutch is engaged. A make-up cylinder 104 having a spring loaded piston 105 maintains a constant pressure at the port 95. The central valve 40 can be actuated independently of the pilot valve by supplying pressure through a duct 60 which communicates, via a non-return valve 62 and passages 63, 63<SP>1</SP> with the chamber 56, so that this chamber is pressurized and shifts the valve sleeve 51 to the left thus opening the chamber 56 to the clutch servo cylinder. Specifications 854,006 and 972,373 are referred to.
Patent GB-1107720-A (GB)
Title: Ring counter
IPC: H03K23/00
Filed: 1965-07-08
Abstract: 1,107,720. Electronic counters. B. G. HUBBARD. 8 July, 1965 [8 July, 1964], No. 29067/65. Heading G4A. Each stage of a ring counter comprises an SCR, the stages being so arranged that following a transient state of all SCR's conducting only the SCR of the operative stage is non-conducting. Initially all stages of a three-stage ring counter comprising SCR1-SCR3 are non- conducting but a + ve pulse at 84 renders SCR2, SCR3 conducting with lamps 40, 50 alight, so indicating that stage 1 is operative. A +ve shift pulse at 80 renders SCR1 conducting, the resulting - ve pulse at its anode 20 turning off SCR2. The process repeats round the ring. A + ve reset pulse at 98 causes SCR4 to conduct for the duration of the pulse and restores the circuit to SCR1 non-conducting. A stop pulse at 78 is long enough to turn all SCR's of the ring on and must be followed by a reset pulse before the ring operates again. The circuit may be modified so that two or more non-adjacent stages are in non-conducting condition (Fig. 3, not shown). A decimal ring counter (Fig. 2, not shown) is also described.
Patent GB-302774-A (GB)
Title: Process for the production of active carbon
IPC: C01B31/12
Filed: 1927-11-01
Abstract: 302,774. Metallbank und Metallurgische Ges. Akt.-Ges. Nov. 1, 1927. Addition to 238,889. Carbon. - Active carbon of high absorptive power and mechanical strength is obtained by heating fine-pore vegetable materials, such as plum stones, cocoanut shells, and other hard shells, which are broken up into small pieces, with a concentrated solution of zinc chloride, the weight of zinc chloride employed being less than that of the vegetable material treated. In an example, 100 kilograms of plum stones which have been broken and the kernels removed are treated with a concentrated liquor at 100‹ C., containing 70 kilograms of zinc chloride. The mixture is dried at about 200‹ C., and then heated to 700‹C. The zinc chloride is extracted with hydrochloric acid and water from the carbonized residue which is next dried, broken up and sieved.
Patent GB-727977-A (GB)
Title: Improvements applied to the dephosphorisation of steel and to composition used for this purpose
IPC: C21C7/064
Filed: 1951-12-12
Abstract: Steel is dephosphorized by the use of a reagent consisting of sodium carbonate, calcium carbonate and water, the latter amounting to 15-20 per cent of the mixture and being present as water of crystallization.  The reagent may be formed by reacting brine with sodium carbonate in the presence of water, the crystalized product being in the form of a powder or in cakes. The ratio of sodium carbonate to calcium carbonate may vary from 1/4 to 1/2 and may be used at the rate of 250 kilos to 25 tons of metal.  The reagent may be added in the Bassemer process just before the after-blow, or may be added as a fine powder to the blast during the after-blow.  It may also be added in cake form to the ladle.
Patent GB-1152505-A (GB)
Title: Filter Apparatus
Inventor: SAUER CHARLES ARTHUR
IPC: B22D11/119
Filed: 1967-06-23
Abstract: 1,152,505. Filter for molten metal. DOW CHEMICAL CO. 23 June, 1967, No. 29165/67. Heading B1D. A filter for molten aluminium, magnesium or alloys comprises a closed housing containing a multi-layer bed of aluminium oxide particles between perforate plates 40, 42, through which the metal flows upwards into an outlet chamber partly bridged by baffle 60. The filter is immersed in molten metal in a heated container (12) together with a delivery pump (Fig. 1, not shown). The inlet tube 30 extends above the floor 36 of the housing and is enclosed by a perforate diffusing baffle 54 which supports plate 42. Plates 40, 42 are spot welded to the housing. The outlet tube 32 extends down through plates 40, 42 and floor 36 and then up through the molten metal which is protected by a flux layer. Dimensions of housing and its contents including the particles are exemplified. The housing may be cylindrical or rectangular in section, and baffle 60 extends one third of the average between horizontal lengthened width across the housing. The filter delivers metal to a continuous casting machine.
Patent GB-1079748-A (GB)
Title: Improvements in or relating to the production of chemical reagents
Inventor: JONES BARRY DAVID
IPC: C07C45/67
Filed: 1965-07-09
Abstract: The invention relates to a process for producing ninhydrin on a commercial scale which comprises condensing a di-lower alkyl (1-4 carbon atoms) ester of phthalic acid, for example diethyl phthalate, with dimethyl sulphoxide, in the presence of an alkali metal hydride, for example sodium hydride, in an inert gas atmosphere, acidifying the resulting product with a mixture of ice and concentrated hydrochloric acid, hydrolysing the product so formed with water to form ninhydrin, and thereafter purifying the ninhydrin by treatment with an activated charcoal, for example a decolorizing charcoal, and with chlorine or an alkali metal or alkaline metal hydrochlorite, for example sodium hydrochlorite, potassium hypochlorite or calcium hypochlorite, to give ninhydrin of sufficient purity for commercial use.  Examples are given.
Patent GB-390872-A (GB)
Title: Improvements in and relating to vapour electric discharge devices
IPC: H01J13/20
Filed: 1931-10-22
Abstract: 390,872. Metallic-vapour apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Brucker, G. W. ; 1458, Baker Avenue, Schenectady, New York, U.S.A.) Oct. 22, 1931, No. 29354. Convention date, Oct. 22, 1930. [Class 39 (i).] The vapour in the vicinity of the anode is deionized by means of a tubular screen which consists of carbon or carboncoated material, and is arranged so that the space surrounding the anode is in communication with the atmosphere of the device by a passage through the screen and by a path over the external walls thereof. A screen 12, Figs. 1 and 2, has the form of a frustum of a cone, the diameter of the larger end of which is substantially equal to the height thereof. The larger end is arranged nearest the anode 10 and the screen is provided with a tapered or cylindrical passage 13. The screen is screwed into a steel ring 14 which is supported by the shield 11 through steel members 15, bent to increase their resiliency. The supports may consist of straight members which are arranged tangentiallv to the screen and secured thereto through short members perpendicular to the supports. In a modification, the screen is formed with lugs which are adapted loosely to engage slots in supports provided on the internal wall of the shield. Specification 359,587 is referred to.
Patent GB-414549-A (GB)
Title: Improvements in and relating to automatic prepayment apparatus
IPC: G07F15/12
Filed: 1933-10-23
Abstract: 414,549. Coin - freed apparatus. BASILE, A., 191, Rue Leopold 1<er>, Brussels. Oct. 23, 1933, Nos. 29365 and 29366. Convention dates, Oct. 22, 1932 and Dec. 16, 1932. [Class 27.] Billiard tables, hiring; coin action, mechanical-connection.-The winding-up draw-bar 2, Fig. 1, of a coin-freed timing mechanism for use, for example in " Russian " billiards, is provided with a slot 11 into which the coin drops and rests on the end 5 of a sliding stop 4 mounted in the bar. Small coins drop through the slot 11 without resting on the stop 4. The stop 4 has a narrow stem 12 surrounded by a spring 13 abutting against an enlarged portion 3. When the bar 2 is pulled out by a knob 14 to wind up the clockwork mechanism, the projecting edge of the coin raises a detent 16 so that its free bevelled end 17 cannot engage with stop notches 10 and the end of a raised portion 8 on the bar. As the bar is drawn out, a curve 18 on the detent presses the coin down to cause the sliding stop 4 to yield and allows the coin to pass through. The detent is hinged to a bracket 15 by means of two screws 20 and coil springs 19. In a modification Fig. 3, the bar 2 has a transverse sliding stop 23 provided with a reduced portion 24, the stop being normally held by a spring 26 with the thick portion projecting into the slot 11. When the bar is pulled out, a head 29 on the stop engages a ramp 30, 31 to move the stop so that the portion 24 comes into alignment with the stop 11 and allows the coin to drop. In a further modification Fig. 4, the sliding transverse pin 23 is positively moved in both directions by two parallel ramps 32, 33 having inclined portions 32<1>, 33<1> and straight portions 32, 33 and 32<11>, 33<11>.
Patent GB-239747-A (GB)
Title: Improvements in water tube boilers
IPC: F22B21/04
Filed: 1924-12-08
Abstract: 239,747. Giannelli, O. Dec. 8, 1924. Liquid and gaseous fuel furnaces.-A water tube boiler has two drums A, B, connected by a single nest of water tubes C. Liquid fuel is injected downwards into the combustion space, parallel to the tubes, and the hot gases are deflected over the tubes by the curved lower wall of the combustion space. A partition S directs the feed water into the cooler tubes.
Patent GB-910852-A (GB)
Title: Improvements relating to holders for road licence cards
Inventor: NEALE DAVID WARWICK
Filed: 1960-08-26
Abstract: 910,852. Vehicle licence holders. RAYDYOT Ltd. Aug. 25, 1961 [Aug. 26, 1960], No. 29469/60. Class 73. A vehicle licence holder comprises a flexible frame 10 of rubber or synthetic resinous material which embraces a removable assembly 19, 20 comprising a mirror 25 and a disc 27 of transparent material, the frame 10 having an opening or window extending therethrough so that when a licence disc 28 is interposed between the mirror back and the transparent material and assembled into the frame, the disc 28 can be viewed at one side of the frame and the mirror at the other. The removable assembly comprises a metal pressing having a flat annular flange 19 joined to a cylindrical skirt 20 to which is connected a mounting stem 21 with a ball 24 engaging a central hole in a mounting plate 30 secured to a dashboard or facia of a motor car.
Patent GB-823647-A (GB)
Title: Checking system for recording machines
IPC: G11B5/00
Filed: 1957-09-19
Abstract: 823,647. Magnetic recording and reproducing apparatus. DICTAPHONE CORPORATION. Sept. 19, 1957 [Sept. 25, 1956], No. 29515/57. Class 40 (2). In an apparatus for indicating mal-functioning of a magnetic tape recorder a signal is applied to the input, recorded on the moving record, reproduced therefrom and fed to an analysing arrangement to operate a warning device in the event of the reproduced signal not having one or more predetermined characteristics indicating a successful operation of the machine. The general arrangement is shown in block form in Fig. 1. When it is desired to record, a switch 20 connects D.C. voltage source 14, 16 to a relay coil 18 to activate by known means the recording machine 12, and begins to record signals from a source 22 via four channels to four recording heads 32a, 32b . . . &c., arranged in echelon along a moving record tape 30. The application of positive voltage at terminals 38, 44 of a timer unit 34 starts a checking system which automatically makes a test of the operating condition of the machine 12. The timer unit 34 develops a timing pulse of 4.5 seconds duration which is transmitted to an indicator unit 46 to activate the unit and at the same time prevent energization of a warning lamp 48 therein for the duration of the timing pulse. The activation of the timer unit 34 initiates a tone-start signal which triggers a tone pulse oscillator 56 to generate a short tone pulse of approximately 0.5 second which is fed through the coupler units 26a, 26b . . . &c. and the separate channel of the recording machine 12 to the respective heads 32a, 32b . . . &c. and recorded simultaneously of the four respective tracks on the tape 30. A pick-up head 58 extending across the full width of the tape senses sequentially the tone pulses which are then transmitted to a tuned amplifier 64, where they are rectified to produce D.C. pulses, which are transmitted to a pulse counter unit 50. If exactly four pulses of proper time duration and spacing are received the pulse counter will in turn transmit a " safe " signal to the indicator unit 46 so that the warning lamp 48 will remain de-energized at the end of the 4.5 second timing pulse. In the absence of a proper time duration and spacing of the four pulses, no " safe " signal will be generated during the timing pulse, and at the end of this pulse the warning lamp will be energized to indicate malfunction of the apparatus. Details are given, with reference to Figs. 2, 3, 4 and 5, of the electronic circuits of the timer unit 34, indicator unit 46, pulse counter 50, tone oscillator 56, tuned amplifier 64 and power supply 402.
Patent GB-271746-A (GB)
Title: Improvements in spring suspensions for vehicles, particularly motor-vehicles
IPC: B60G11/04
Filed: 1926-11-23
Abstract: 271,746. Gebauer, C. P. Nov. 23, 1926. Springs, arrangement of.-A spring suspension for vehicles in which the torque of the axle is taken by a torque tube. or equivalent means, comprises a single laminated spring on each side of the vehicle, pivoted to the axle at a point intermediate its ends so as to constitute a lever with arms of different lengths, one arm serving to support the load while the other bears on a point fixed in relation to the axle. The spring 1, 2 is pivoted at 3 to parts 5 of a beam 6 rigid with the axle 4, the spring being arranged beneath the axle. The short arm 1 supports the frame 8 through a rod 7, and the long arm 2 bears against a surface 11 on the beam 6 by means of interposed slides 10 or roller bearings. The slides 10 may be replaced by a shackle connector. The beam 6 preferably comprises a duplex cellular structure carried bv a sleeve 9 rigidly secured on the. axle 4. torque being taken by the torque tube 12. The spring mav be inclined as shown, and, when unloaded, is of curved form having a radius of curvature decreasing towards the ends of the spring.