baber/WOPTO huggingface dataset:
Patent GB-125522-A (GB)
Title: Improvements relating to the Control of Power Absorbed in Electric Furnaces.
Inventor: GOW COLIN CLARENCE
IPC: H05B7/00
Filed: 1918-05-11
Abstract: 125,522. Gow, C. C., and Campbell, D. F. May 11, 1918. Electrode furnaces.-An electrode is adjusted by fluid pressure controlled by an electro-magnetic device 10 receiving, from a source independent of the furnace current, a current which is regulated automatically by a varying resistance 8 in accordance with the power tahen by the furnace. As shown, a valve 13 is adapted to close a pipe leading to a pressure cylinder 18, or to connect the pipe either to a supply pipe 14 for water, oil, compressed air, or the like, or to an exhaust 15. Descent of the piston 19 and electrode 4 is effected by gravity or a spring. The valve body 13 is connected to the spring-controlled core of a solenoid 10, in the independent circuit, which is fed by a battery 9. A relay may be inserted between the solenoid 10 and valve. The resistance 8 is varied by a solenoid 5 supplied with current either by a transformer 1, excited. bv the whole or part of the electrode current, or by a shunt to a resistance in series with the electrode, when direct current is used in the furnace. A rectifier may be interposed between the transformer 1 and solenoid 5. A hand-controlled resistance 21 is connected in series or parallel with the automatically-controlled resistance 8, to adjust the action of the regulator, and is preferably designed so that, in the extreme positions of the hand-switch, the solenoid 10 acts to cause raising or lowering of the electrode independently of the variable resistance 8. When alternating current is employed in the furnace, additional or alternative adjustment of the load can be obtained by providing the transformer 1 with a number of tappings and varying the number of secondary turns in circuit with the solenoid 5. In a polyphase furnace or one having arcs in series, each primary solenoid 5 is provided with an additional winding connected in shunt between the electrode and furnace hearth. With a constant-current supply, pressure windings alone are provided.
Patent GB-244970-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B23/24
Filed: 1925-03-25
Abstract: 244,970. Beardsley & Co., Ltd., G., and Beardsley, G. A. R. March 25, 1925. Intermittent toothed gearing.- Curved members 22 fixed on the periphery of a continuously-rotating disc 20, pass between the teeth of a gear-wheel 23 and intermittently rotate it.
Patent GB-626161-A (GB)
Title: Improved arrangements for eliminating parallax in indicating instruments
IPC: G01R13/20
Filed: 1947-03-24
Abstract: 626,161. Cathode-ray oscillographs. STANDARD TELEPHONES & CABLES, Ltd., and CLEAVER, R. F. March 24, 1947, No. 7991. [Class 37] [Also in Group XIX] A cursor line, spaced above an indicating face and below a colour filter, is illuminated by light to which the filter is opaque except along a narrow band parallel to the cursor line, while the filter is transparent to light illuminating or comprising the indication on the face. A cursor line 2, engraved on a transparent plate 1, spaced between a cathoderay tube 7 and colour filter 3, protected by a cover glass 4, is illuminated by lamps 9 emitting light, say red light, to which the filter 3 is almost opaque except along a thin slot 5 parallel to the line 2, while the filter 3 is transparent to light from the cathode-ray tube trace, say green light, and to light from lamps 10, say blue light, which illuminates an annular scale 8. Thus the trace and scale can be viewed from above at any angle while the cursor can only be seen distinctly when viewed normally. The colour filter may comprise a dyed gelatine sheet or a similar coating on the undersurface of the cover glass 4 or a coloured plastic sheet. Precautions are taken to avoid edge glow from the slot 5. In a second embodiment the source of light for the cursor may be placed behind the fluorescent screen and the cursor may comprise parallel slots in two spaced colour filters. The transparent plate 1 may then be eliminated.
Patent GB-847523-A (GB)
Title: Improvements in or relating to fractionating apparatus
Inventor: SHUTTLEWORTH NORMAN HARRY
IPC: B01D3/26
Filed: 1957-03-11
Abstract: 847,523. Fractionating columns. MARSTON EXCELSIOR Ltd. March 14, 1958 [March 11, 1957], No. 7996/57. Class 55 (2). The fractionating columns described in Specification 783,186 are modified by upwardly bending to marginal edge portions of the corrugated partitions such as 13 as shown at 18 to form end walls for the liquid collecting troughs 17. Specification 759,176 also is referred to.
Patent GB-165176-A (GB)
Title: Improvements in or relating to furnaces
IPC: C23C2/00
Filed: 1920-03-18
Abstract: 165,176. Lane, C. J., and Galvanizing Equipment Co., Ltd. March 18, 1920. TuyÞres.-A galvanizing furnace of the rotary type has a substantially cylindrical combustion chamber 12 with a removable upper portion 13 to enable the internal drum to be withdrawn and fuel to be deposited in the bottom of the chamber 12. A belt driven fan 40 supplies air to the middle of the pipe 43, which pipe has branch pieces 44 projecting upwardly and spaced along the bottom of the chamber 12. Fig. 4 shows a tuyÞre in section, the branch piece 44 being threaded and secured to the threaded nozzle portion by a screwed sleeve. A conical shaped portion 46, open at the lower end, is screwed upon the nozzle 45 so that an injector action is induced when compressed air escapes from the nozzle 45. The nozzles project through the casing of the combustion chamber, the slope of the sides of the chamber tending to precipitate fresh fuel to the neighbourhood of the tuyÞres.
Patent GB-181486-A (GB)
Title: Method for the catalytic oxidation of ammonia with oxygen
IPC: C01B21/26
Filed: 1921-03-15
Abstract: 181,486. Cederberg, I. W., and Bõckstr÷m, H. M. March 15, 1921. Catalytic apparatus; nitrogen oxides, catalytic production of by combustion of ammonia. - The oxidation of ammonia by means of oxygen is effected by passing the gas-mixture. through a. catalytic zone in which the concentration of the catalyst gradually increases in the direction of the gas-flow; in this way mixtures containing up to 40 per cent of ammonia can be treated without explosion. The apparatus shown consists of a nickel or aluminium tube 1 containing nickel rings 2, each of which carries a nickel net 3; plates of platinized pumice 4 are placed between the nets 3, the concentration of platinum increasing from the inlet 5 to the outlet 6. The nickel nets and rings serve to conduct and radiate heat away from the reaction zone. Specifications 16254/00, 9536/02, [Class 64, Heating], and 12419/03 are referred to.
Patent GB-679607-A (GB)
Title: Improvements in high-vacuum molecular pumps
IPC: F04D19/04
Filed: 1951-04-09
Abstract: 679,607. Vacuum pumps. PHILIPS ELECTRICAL INDUSTRIES, Ltd., April 9, 1951 [April 12, 1952], No. 8178/51. Class 110(i) [Also in Group XXXIV] In a high - vacuum molecular pump comprising a rotor and a stator, one of which surrounds the other closely, the adjacent surfaces being conical and a continuous pumping groove being formed in one of the surfaces with a cross-section increasing towards the suction side, the bottom of the groove is at a constant distance from the axis of rotation. In the pump shown, a rotor 1 rotates between stators 3, 4, provided with helical grooves 5, 6. Air is sucked in at 7 and, after traversing the grooves 5, 6, enters a chamber 2, from which it passes by way of ports 9 to a discharge pipe 8. The rotor shaft 10 is journalled in ball bearings 11, 12 which are loaded by a spring 14. If the pressure at the inlet 7 increases suddenly, the resultant axial force on the rotor 1 causes it to move slightly against the action of the spring 14, thereby increasing the clearance between the rotor and stators sufficiently to permit a pressure interchange between the inlet and discharge of the pump. The clearance can be adjusted by means of a bolt 15. The rotor may comprise two or more walls cooperating with three or more grooves. The grooves may be provided in the rotor instead of in the stator. Instead of being helical, each groove may comprise a number of channels arranged at right angles to the axis of rotation and interconnected by inclined. channels.
Patent GB-1351408-A (GB)
Title: Pcm t d m telecommunications exchange systems
IPC: H04M3/00
Filed: 1972-02-23
Abstract: 1351408 Automatic exchange systems SIEMENS AG 23 Feb 1972 [24 Feb 1971] 8231/72 Heading H4K In an exchange for selectively interconnecting P.C.M. T.D.M. highways employing separate conductor pairs for the two directions of transmission, each highway has a separate interconnection unit, each unit including a store capable of storing the (speech) signals on that highway during a complete time frame, a switching array capable of making selective connections to the individual storage locations, a control store arranged to control successive connections through the array and means to derive clock and synchronizing signals from the incoming signals. As described a connection is established between two highways via the two switching units associated with the highways. The switching elements are AND gates. For each connection two paths (one for each direction) are set up, each via two AND gates one in each array. Thus each path is set up by coordinate selection the control stores of the two interconnection units involved providing one coordinate each. To enable the interconnection of two subscribers associated with the same highway an additional interconnection unit with its inputs and outputs on the subscriber side connected together and usable to complete such connections is provided. All interconnection units are supervised by a common processor. As much of the control equipment is individual to the highways it can be provided as and when required as the system grows.
Patent GB-595154-A (GB)
Title: Improvements in or relating to piezoelectric vibrators
IPC: B06B1/06
Filed: 1945-04-03
Abstract: 595,154. Sound transmitting and receiving devices. SUBMARINE SIGNAL CO. April 3, 1945. No. 8250. Convention date, April 3, 1941. [Class 40 (iv)] [Also in Group XXXVIII] A piezo-electric vibrator, particularly for producing and receiving compressional waves in submarine signalling, comprises a plurality of longitudinal vibrating units 6 supporting piezo - electric crystals on the sides thereof, the units being mounted on a plate 2 aligned by the ridges 2<1> cemented by cement 12 and secured by machine screws 11. The units are nested together in a rectangular fashion sufficiently close together to cover effectively the entire plate surface. The units are slightly tapered from the base to the top and each comprises a base element 7 and a top member 8 with two recessed sections on opposite sides wherein the crystals are firmly fixed by cementing their top, bottom, and back edges to the recess surfaces. The crystals are provided with two inner electrodes 12 and 13 which contact the surfaces 9 and 10 or are otherwise grounded to the plate 2. The external electrodes 14, 15 are connected to the bus-bar 16 by leads 17, 18. The compressional bearing surfaces are parallel to the radiating surface of the plate 2 while the electrodes are parallel to the longitudinal axis of the units. The side of the casing 1 opposite to the plate 2 is closed by the cover 23 which has a waterproof gasket 25. Fig. 3 shows one of the units in which the conductor 17 is connected to a mounting block 28, and is held by two insulating washers 29, 30, being joined to the ring 37 from which the connector 32 extends to the bus-bar 16. The back electrodes (not shown in Fig. 3) are connected by leads 33, 34 to the terminal 35 secured by the screw 36 to the unit, thus effectively grounding them. The invention is stated to be applicable to direction-finding and rangefinding by picking up echoes from distant objects.
Patent GB-473054-A (GB)
Title: Improvements in or relating to the clarification of industrial liquors
IPC: C02F1/52
Filed: 1937-03-20
Abstract: A method of clarifying industrial liquors, for example solutions of ilmenite in sulphuric acid, acid solutions obtained in preparing titanium pigments or solutions containing phosphoric acid, consists in first adding an organic colloid to remove finely divided matter by settlement and then a second organic colloid, which will coagulate with the first and remove by settlement any remaining finely divided matter.  The first colloid may be a glue, gelatin, alginate, albuminoid, protein or dextrine, and the second tannin or tannic acid, gallo-tannic acid, quinic acid or pyrogallic acid.  The colloids are preferably used in the form of concentrated aqueous solutions.ALSO:A method of clarifying industrial liquors, for example, solutions of ilmenite in sulphuric acid, acid solutions obtained in preparing titanium pigments or solutions containing phosphoric acid, consists in first adding an organic colloid to remove finely divided matter by settlement and then a second organic colloid, which will coagulate with the first and remove by settlement any remaining finely-divided matter.  The first colloid may be a glue, gelatin, alginate albuminoid, protein or dextrine, and the second tannin or tannic acid, gallo-tannic acid, quinic acid or pyro-gallic acid.  The colloids are preferably used in the form of concentrated aqueous solutions.
Patent GB-541077-A (GB)
Title: Method of operating a shaft furnace
IPC: C21B5/00
Filed: 1940-05-08
Abstract: 541,077. Extracting iron. BRASSERT & CO., Ltd., H. A. May 8, 1940, No. 8287. Convention date, May 26, 1939. [Class 72] [Also in Group XII] A method of operating a shaft furnace charged with iron ore, fuel and flux, consists in charging fuel and ore and flux if desired to an annular zone bounded by the furnace wall and charging flux by itself to the central zone of the furnace. The method may be carried out by the apparatus shown in the Figure comprising a hopper 21 provided with an upper bell 22, a lower bell 23 and a distributer 25 all of which are vertically movable. When it is desired to charge material to the annular zone of the furnace from the hopper 21, the bell 23 and distributer 25 are both lowered to make contact with a shoot 18. When it is desired to charge material to the central zone, the bell 23 only is lowered. The method may also be carried out by apparatus described and shown in Specification 476,868, [Group XII]. and in U.S.A. Specifications 1,815,897 and 1,905,679. Reference has been directed by the Comptroller to Specification 476,868, [Group XII].
Patent GB-1211293-A (GB)
Title: Improvements in or relating to solvent mixtures
IPC: C23F1/24
Filed: 1968-02-20
Abstract: 1,211,293. Etching. SIEMENS A.G. 20 Feb., 1968 [23 March, 1967], No. 8293/68. Heading B6J. A silicon body is etched with an etchant comprising nitric acid, hydrofluoric acid and at least one additive containing an amine group and capable of reacting with nitrous acid and/or with an oxide of nitrogen, such as a primary or secondary aliphatic or aromatic amine, an unsubstituted or N-substituted acid amide, hydrazine or hydroxylamine or a derivative or salt thereof, an S-N compound containing an NH or NH 2  group, urea, urea nitrate or gelatine.
Patent GB-1464671-A (GB)
Title: Devices for transmitting movement having a lever and a connecting  rod
IPC: F02M19/12
Filed: 1975-02-27
Abstract: 1464671 Linkwork SOC INDUSTRIELLE DE BREVETS ET D'ETUDES 27 Feb 1975 [29 March 1974] 8302/75 Heading F2K [Also in Division E2] An articulated linkage assembly for a carburettor comprises a rod 1 and lever 5 connected by a one-piece moulded plastics eyelet 7 which is fitted to the lever 5 and has a spherical seating 10 in which a ball end 11 of the rod 1 is mounted, the eyelet having integral resilient lips 12 tending to bias the ball-ended portion of the rod into the axis of the eyelet 7. The eyelet 7 may be initially moulded with a single flange 8 (Fig. 3, not shown) and may be fitted to the lever 5 by heat setting to form a second flange 9. Alternatively, the eyelet 7 may be forcefitted to the lever 7. As shown, two such eyelets 6, 7 are used, for the carburettor linkage, one at each end of the connecting rod 1 between the lever 5 attached to the starting flap 16 and a second lever 4 adapted to rotate the main throttle member.
Patent GB-231519-A (GB)
Title: Improvements in or relating to automatic couplings for railway vehicles
IPC: B61G3/00
Filed: 1925-03-28
Abstract: 231,519. Caille, E. P. A. March 31, 1924, [Convention date]. Couplings, automatic.-In an automatic coupling of the type in which a hook engages a similar hook on an opposing vehicle, by a horizontal swing on collision of the vehicles, each hook A is provided with a tail G working against a spring R and between stops F and E on an adapter I and an uncoupling lever K respectively. The adapter I is secured, in existing railway carriages, to the ordinary draught-hook, and is provided at its end with a vertical pivot pin B for the hook A. Uncoupling is effected by moving the lever K so that the stop S forces the tail G, against the compression of the spring R, on to the stop F.
Patent GB-357574-A (GB)
Title: Machine for removing the fibres from ramie and other textile plants
IPC: D01B1/14
Filed: 1930-03-14
Abstract: 357,574. Preparing fibres for spinning. KOIRANSKY, S., 38, Avenue J. B. ClÚment, Boulogne-sur-Seine, and SOC. CIVILE D'ETUDES DES TEXTILES COLONIAUX, 1, Rue Jules Lefebvre, Paris, both in France. March 14, 1930, No. 8352. Convention date, March 20, 1929. [Class 120 (i).] In a transportable machine for removing fibres from ramie stems &c., an individual stem is fed in at 70, Fig. 1, and is gripped by an automatic clamp which draws it beneath a cutter 50, Figs. 1 and 10, and spreader 51, a toothed roller 56, Figs. 1 and 13, for removing woody matter, and finally beneath rollers 64, 64<1>, Figs. 1 and 17, which press the flattened stem against the edges of inclined blades to remove the outer coating of gum &c. Motion is derived from an engine 10 which drives an adjustable endless band 17 carrying a spindle 25 which carries the clamp 28 at one end and at the other end a cam 37 which controls the position of the tools. The clamp consists of two halves 28a, 28b, Fig. 4, pivoted to a forked end carried by the spindle 25, and is opened and closed by rotation of a cam 29 carried on a pin 30 traversing the spindle and actuated by a cam 31 at the other end. The timing is such that the clamp is opened when the last operation is completed and closed just before the first operation. The tools are normally held in contact with a stationary work-table 22 by springs 48, 481, 4811 but are raised to allow passage of the clamp by the cam 37 which, as shown in Fig. 9, rocks levers 41 about pivots 42 whereby motion is communicated to an arm 46 carrying the tool. So soon as the gripper has passed the tool is brought down on to the stem. The stem is slit and spread by a rotary cutter 50 and spreader 51, as shown in Fig. 10, woody matter is removed by coacting toothed rollers 56, 59, of which the upper is of bronze, the teeth having sharp edges and contoured as shown in Fig. 15, while the lower is of wood, vulcanized rubber or other yielding material. The last tool, for barking the stem, consists of rollers 63, 631 faced with leather, vulcanized rubber, &c., and inclined knives 65, 65<1>. A funnel 68 collects the waste and evacuates it through a pipe 69. Reference has been directed by the Comptroller to Specifications 23263/03, [Class 120, Spinning], and 19211/09, [Class 120 (i), Spinning, Preparation &c. for].
Patent GB-786333-A (GB)
Title: Improvements in or relating to a process for continuous casting
IPC: B22D11/10
Filed: 1953-03-26
Abstract: 786,333. Continuous - casting machines. JUNGHANS, S. March 26, 1953 [March 29, 1952], No. 8389/53. Class 83 (1). In a process for continuously casting articles of thin sections, such as pipes, from highmelting-point metals, the casting-jet 5 from a nozzle 16 is directed at an angle against a guidesurface 12 so that the metal does not damage the solidification shell 4 or the portion of the meniscus adjacent the wall of the mould. In a modification, a rotating vessel 29, having three nozzles 30, discharges metal against graphite rings 26. Cooling-fluid passes to and from the mould 22 via pipes 23, 24. The surface of the cast metal is visible. The apparatus may be enclosed to prevent oxidation. In a further modification, the metal is deflected from two graphite rings 41, 42, Fig. 6. The guidesurfaces may be heated or cooled, or may be of such material as to modify the metal chemically or metallurgically. Specification 786,334 is referred to. Reference has been directed by the Comptroller to Specification 505,075.
Patent GB-1456153-A (GB)
Title: Reciprocating piston internal combustion engines
IPC: F02B19/10
Filed: 1974-02-25
Abstract: 1456153 Combustion chambers NIPPON SOKEN Inc 25 Feb 1974 [27 Feb 1973 6 Nov 1973 13 Nov 1973 23 Nov 1973] 8395/74 Heading F1B An I.C. engine comprises a main combustion chamber 5 defined by a cylinder 1, a piston 2 and a cylinder head 4, a suction port 6 controlled by an intake valve 7 having a stem 7b and a head 7a for introducing air or lean mixture to the main chamber 5, a trap chamber 13 to which fuel or rich mixture is supplied via a first aperture 15 when the valve 7 is open, the trap chamber having a second aperture 16 and a spark-plug 14, and a fuel injection nozzle 18 being arranged to discharge fuel when the valve 7 is opened so that fuel or rich mixture is supplied to the aperture 15. A separating wall 17 in the trap chamber prevents direct flow of the rich mixture from aperture 15 to aperture 16 and guides the inflowing rich mixture towards the spark-plug and facilitates scavenging of residual gases from the trap chamber by forming a statified flow of rich mixture and residual gases. In Fig. 1, a solid jet of fuel is ejected from the fuel injector nozzle 18 towards aperture 15; but in Fig. 3 (not shown), some mixing of fuel and air occurs in the stream (B) upstream of aperture 15. In Fig. 6, a guiding wall 21, the downstream end of which is preferably turned toward the aperture 15, is provided. The fuel injection nozzle 18 may be operated electro-magnetically or by fuel pressure e.g. as in Fig. 7 (not shown). In Fig. 11, fuel is discharged from nozzle 18 into a conduit 22 which passes through the engine exhaust manifold 23, airflow through the conduit 22 being controlled by an auxiliary throttle valve 25b, so that the air fuel ratio is very low i.e. in the range 2 to 6. Some of the rich mixture passes into the trap chamber 13  and the rest mixes with air to form a lean mixture in the main chamber 5. The conduit 22 may be heated electrically or by the engine cooling water instead of by exhaust gases or by a combination of these means. In Fig. 12 (not shown), the wall (17<SP>1</SP>) separating the suction aperture 15 and the discharge aperture 16 projects into the main chamber 5.
Patent GB-1516933-A (GB)
Title: Apparatus for moulding shaped articles methods of moulding articles and shaped articles formed thereby
IPC: B29D11/00
Filed: 1976-03-03
Abstract: 1516933 Moulding smooth articles REDIFON FLIGHT SIMULATION Ltd 23 Feb 1977 [3 March 1976] 08463/76 Heading B5A An article 5 with a mirror smooth surface is moulded on a roughened base male mould form 2 with the interpositioning before moulding of a shaped close-fitting rigid liner 36 which is removed with the moulded article and subsequently stripped from the article. The liner is rigid while in position on the mould form but flexible enough to be removed from the moulded article. The article may be prepared in the form of a female mould with a final moulded article being fashioned therefrom in the shape of the male form.