baber/WOPTO huggingface dataset:
Patent GB-1421640-A (GB)
Title: Process for determinating the concentration of a dissolved  substance in alkaline solutions
IPC: G01N31/16
Filed: 1973-08-17
Abstract: 1421640 Determining phenol BAYER A G 17 Aug 1973 [26 Aug 1972] 38919/73 Heading G1B A process for determining the concentration of solute in an alkaline solution comprises measuring the refractive index and alkalinity of the solution and calculating the concentration of solute from these two measurements. Correction is made for temperature variations. The method is particularly applicable to determination of bisphenols in aqueous sodium hydroxide. In the apparatus shown in Fig. 3, the test solution flows continuously in conduit 3. Sample streams are diverted through conduits 4 and 5 to refractometer 1 and automatic titrimeter 2. The reading from refractometer 1 is stored in memory 18 whilst the automatic titration takes place. In titrimeter 2, a discrete sample of test liquid is dispensed by burette 6 into titration vessel 9. Dilute sulphuric acid reagent is titrated from burette 11. The end point is determined by a pH meter (not shown). The refractive index reading in memory 18 and the reading of burette 11 are automatically fed to computer 19 to calculate the phenol concentrations.
Patent GB-823831-A (GB)
Title: Improvements in stockings
IPC: A41B11/00
Filed: 1957-12-16
Abstract: 823,831. Stockings. CLARKE, J. V., and BURD, S. J. Dec. 16, 1957, No. 39064/57. Class 141 [Also in Group VIII] In a stocking including an afterwelt 12 and a welt 18, the welt 18 is knitted from a yarn comprising a rubber core covered with the same material from which the afterwelt is knitted. This construction causes the welt to form. a tight roll, Fig. 3, thus providing a garter integral with the stocking. The afterwelt is relatively longer and the welt is relatively shorter than the corresponding parts of a conventional stocking.
Patent GB-345338-A (GB)
Title: An electromagnetic switch control system for a bank of lamps
IPC: H05B37/02
Filed: 1929-12-20
Abstract: 345,338. Changing signs. SUZZI, A., 7, Via Sormano, Savona, Italy. Dec. 20, 1929, No. 39074. [Class 3 (i).] In an electromagnetic-switch control system for a bank of lamps each lamp circuit contains a doublebreak contact closed by the core of a low-tension relay comprising two coils arranged side by side and energizable to move the core into or out of its contact-making position. The lamps L<1>, L<11>, &c. are connected across the mains M, each lamp being controlled by a low-voltage relay R<1>, R<11>, &c. in which the movement of a core N bridges contacts K. The core is moved by the energization of closing coils Wa or opening coils Wo, one end of every coil being connected to a common line C and thence to a source of low-tension current such as a battery Bt or a transformer T. The other end of each closing coil Wa is connected to a separate contact head Ba on a switchboard S. The outer ends of the opening coils Wo controlling each column of lamps are connected to a common contact head Bo. The opening contact heads Bo are displaced relative to the closing contact heads Ba, the contact Bo controlling the opening of contacts for lamps in, for example, the seventh column being aligned with the contacts Ba causing the closing of lamp contacts for the third column. The other side of the current supply is electrically connected to brushes 3 attached to a bar 1 travelling on guide rails G. The brush 3o contacting with the opening contacts Bo is made in two parts pivoted to the bar 1. Stencils of insulating material are laid on the switchboard S and the bar 1 moved across, the previously lit lamps then being extinguished row by row and others illuminated, a "lag" of four rows being caused by the displacement of the contacts Bo, Ba. Instead of the stencils and moving bar, a " pencil P of conducting material with an insulating handle may be used.
Patent GB-1327689-A (GB)
Title: Field sequential laser scan for night colour television
IPC: H04N9/04
Filed: 1971-08-20
Abstract: 1327689 Colour television INTERNATIONAL STANDARD ELECTRIC CORP 20 Aug 1971 [20 Aug 1970] 39154/71 Heading H4F Low visibility colour television camera system in which lasers 1, 2, 3 produce respective red, blue and green scanning beams which are combined into one at 4. Electro-optical birefringent crystals 9 and 10 are supplied with respective horizontal and vertical sweep voltages to cause the combined beam to perform a raster scan over an area 24. The scanned area is viewed by a television camera of the non- integrating type, e.g. an image dissector, having its horizontal and vertical sweep voltages fed via amplifiers, 12, 13 to supply the crystals 9, 10. The illumination scan and viewing scan are thus synchronous. If all the lasers are on simultaneously, a field sequential filter triplet is provided in front of the camera such that the field colour sequence may be; Frame 1, field 1 red, field 2 blue; Frame 2, field 1 green, field 2 red; Frame 3, field 1 blue, field 2 green. The filters are discarded if the lasers are actuated field sequentially.
Patent GB-1028027-A (GB)
Title: Magnetic tape recording apparatus
Inventor: BALDWIN JOHN LEWIS EDWIN
IPC: G11B15/62
Filed: 1962-10-17
Abstract: 1,028,027. Magnetic tape recording apparatus. RANK-BUSH MURPHY Ltd. Oct. 17, 1963 [Oct. 17, 1962], No. 39271/62. Heading G5R. Apparatus for recording electrical signals, such as television signals, on a magnetic tape as a series of transversely extending tracks, the tape being stretched across a gap in a guide, is characterized in that the gap is wider than 0À125 inch thereby reducing the variation in the pressure exerted between the record/playback head and the tape which would otherwise occur as a result of wear in the head. In one arrangement, Fig. 2, the guide cheeks 1 and 1<1> are separated by a gap of 0À25 or 0À3 inch compared with the normal 0À125 inch, and in this way the ratio of the angle alpha formed by the tape with a new head to the angle # formed by the tape with a worn head can be reduced from about 6 : 1 to about 2À5 : 1, with a corresponding reduction in the ratios of the pressure on the head, thereby reducing wear of the head. In a modification, Fig. 3 (not shown), the separation of the cheeks is reduced as the head wears, either to keep the angle alpha constant or to reduce its variation.
Patent GB-356613-A (GB)
Title: Improvements in or relating to two-pressure marine boiler plants
IPC: F22B33/14
Filed: 1930-12-31
Abstract: 356,613. Compound steam boilers. SCHMIDT'SCHE HEISSDAMPF-GES., 2, Rolandstrasse, Wilhelmsh÷he, Cassel, Germany. Dec. 31, 1930, No. 39346. Convention date, Jan. 2. [Classes 123 (ii) and 123 (iii).] In a high- and low-pressure marine boiler having a flue-tube low-pressure section 13, the return chamber 12 through which the gases from the furnace 10 of the high-pressure section pass on their way to the low-pressure section is fitted with auxiliary firing means such as burners 26, which are used when an increase in the generation in the low-pressure steam is desired, and when the highpressure section and its furnace 10 are shut down for repairs, communication between the furnace and the return chamber being then closed by a damper 31. Steam is generated indirectly in the drum 1 of the high-pressure boiler by the circulation of a heat carrier through tubes around the walls of the furnace 10 and through pipe coils 5 in the drum. The high-pressure steam is superheated in tube elements 17 arranged in the return chamber, portions 24 of the elements forming a closed wall at one side of the auxiliary combustion chamber. The low-pressure steam main 36 is connected with the inlet and outlet pipes 19, 21 of the high-pressure steam superheater by pipes 43, 47 provided with shut-off valves 42, 46, so that when the high-pressure boiler section is shut down, the valves 42, 46 may be opened to allow lowpressure steam to flow from the main 36 through the high-pressure superheater. The low-pressure steam thus flowing to the high-pressure superheater may be drawn from the outlet pipe 35 of the lowpressure superheater 32, or, by opening a valve 39 in a branch 40, directly from the low-pressure boiler section.
Patent GB-1362869-A (GB)
Title: Manufacture of cut lengths of profiled strip material
IPC: B23D25/04
Filed: 1971-08-23
Abstract: 1362869 Forming profiled strip; angular bending; flying shears HUNTER DOUGLAS 23 Aug 1971 [31 Aug 1970] 39415/71 Headings B3A B3E and B3W [Also in Division B5] Permanently deformable strip, particularly prepainted metal strip, profiled in a forming machine, is continuously fed to a flying shear or saw which, at the moment when the strip is temporarily coupled with it, is driven by fluid pressure actuated means at a speed slightly slower than the feed speed of the strip, the cutting member of the shear or saw being actuated when, due to the coupling, the strip and the shear or saw are moving at the same speed.  A roll forming machine, Fig. 2, comprises roll units 3, 4 and 5, 6 driven by drive members 7 and 8 respectively through a continuously adjustable change-speed drive. Groups of rollers in each unit are coupled by chains for synchronous drive and each unit is individually replaceable. Strip emerging from the roll forming machine enters a flying shear device, Fig. 3, comprising a blade 12, reciprocable by a pneumatic cylinder 13, is mounted on a slide 11. The slide 11 is connected, by a rod 17 adjustable in length, to a slide 16 carrying a gauging stop 20, the slides being movable as a unit along a table 14 by a cylinder unit 22-24. The stop 20 is mounted on an arm 19 which is pivotable about a shaft 18 on the slide 16 by a pneumatic cylinder 21. In use, the slides 11 and 16 are moved in the strip feed direction at a speed slightly lower than the feed speed until the leading end of the profiled strip engages the stop 20. When the slides have reached the same speed as the strip the blade 12 is actuated. The stop 20 is raised by cylinder 21 and the slides are returned to starting position by cylinder 22. An ejector 94 removes the cut length laterally and the stop 20 is re-set. The ejector is carried by a horizontal shaft rotated by a rack-and-pinion actuated by pneumatic cylinders 74, 75. A pneumatic control system, Fig. 4 (not shown), includes a spring-loaded valve 49 which when depressed actuates the blade 12, the arrangement being such that the slide 11 does not depress the valve until after the strip has engaged the stop 20. The return stroke of the slides 11 and 16 is braked when the slide 11 depresses a spring- loaded valve 48. The pneumatic system also includes a safety starting valve 37. A flying saw device (not shown) includes pneumaticallyoperated clamps for holding the strip near the saw blade and a sawdust blower is provided. The saw and shear blade units 12, 13 may be interchangeable or they may be mounted sideby-side and be selectively actuable.
Patent GB-1409778-A (GB)
Title: Data recorders
IPC: G11B15/44
Filed: 1972-09-29
Abstract: 1409778 Clutch control SPERRY RAND Ltd 15 Aug 1973 [29 Sept 1972] 39571/73 Divided out of 1408055 Heading F2L [Also in Division G5] An external drive motor is used to drive a tape transport of a data recorder in a fast replay mode and is connected to drive the same element, e.g. a capstan, as is driven by a motor of the recorder in the recording mode via a clutch which is disengaged from the recorder motor by connection of the external motor thereto, and re-engaged on disconnection. As shown, a pulley 7 belt-driving a capstan (4), Fig. 1 (not shown), of a flight recorder is driven at normal speed during recording by a recorder motor 9, and at fast speed during replay by an attachment 18 which is inserted through a casing aperture 28 and is driven by the replay motor (not illustrated). The pulley 7 is carried on motor shaft 8 by ball races 12, a driving connection between pulley and shaft being normally provided by a spring-loaded ball 13 in abore 14 of the pulley and engaging a recess 16 of a disc 17 keyed to the shaft 8. The attachment 18 includes a sleeve 22 which slides over the disc 17 and disengages the ball 13 from the recess 16, and a spring-loaded plunger 26 which engages a recess 27 of the pulley to drive the same.
Patent GB-852645-A (GB)
Title: Method of treating mica
Inventor: RUZICKA JOSEF
IPC: C04B20/02
Filed: 1957-12-20
Abstract: Crude and waste mica may be split, and thus rendered suitable for the manufacture of insulating sheet mica, by heating the mica, for example to 880 DEG C. for 10 minutes, soaking in a liquid containing carbohydrates, for example for 15 minutes in a 5% sugar solution, and then passing this soaked mica into a further liquid containing microorganisms, in which the mica is macerated with fermentation and agitation.  This may suitably be carried out in a 5% sugar solution containing yeast cells.  The product mica may then be sorted, washed and filtered.
Patent GB-932868-A (GB)
Title: Aperture record card system
IPC: G03B21/64
Filed: 1961-11-07
Abstract: 932,868. Picture &c. mounts. LANGAN APERTURE CARDS Inc. Nov. 7, 1961 [Nov. 21, 1960], No. 39789/61. Class 11. A card 1 with an aperture 2 for mounting a microfilm 3 bonded to the edges of the aperture is formed from a blank card having strips 5, 6 of a thermoplastic material such as cellulose acetate outlining the positions of the holes to be cut subsequently. Blank cards 1 are fed lengthwise in succession by a conveyer 10 to pass between rollers 12, 13 the roller 13 carrying an applicator 14 fed with the impregnating solution by a transfer roll 15 rotating in a bath 16. U.S.A. Specifications 2,493,159, 2,511,859, 2,512,106, 2,560,301, 2,587,022, 2,633,655, 2,643,786 and 2,666,543 are referred to.
Patent GB-1486552-A (GB)
Title: Smoke detector
IPC: G08B17/103
Filed: 1974-11-25
Abstract: 1486552 Smoke detector J B MERRIN and B RUSSELL 25 Nov 1974 [23 Aug 1973]  39898/73 Heading G1A A smoke detector utilizes a self-powered light emitting substance (one that requires no electric current to operate). The source may be eg an enclosure containing a radiation emitting substance, the enclosure being internally coated with a substance that glows when subjected to the radiation thus, a sealed glass capsule coated internally with phosphor and containing tritium gas. The source and detector may be arranged so that smoke causes either obstruction or scattering of the light to actuate an alarm.
Patent GB-1268852-A (GB)
Title: New colour couplers for silver halide photographic emulsions
IPC: G03C7/32
Filed: 1969-08-11
Abstract: 1,268,852. Amides. KONISHIROKU PHOTO INDUSTRY CO. Ltd. 11 Aug., 1969 [12 Aug., 1968], No. 40146/69. Heading C2C. [Also in Divisions C4 and G2] The invention comprises compounds of the formula where B is a coupler residue which contains (i) at least one active methylene group adjacent to a carbonyl group or (ii) at least one phenolic hydroxy group or (iii) a pyrazolone or indazolone nucleus and which is capable of reacting with the oxidative product of a phenylene diamine developer to form a dye image, X is a divalent group, q is 1 or 2, R 1  is an aliphatic hydrocarbon radical containing 1-4 carbon atoms, a is 0 or 1, b is 1-3 with the proviso that a + b is 2 or 3 and R 2  is an aliphatic hydrocarbon radical containing 7-18 carbon atoms. The compounds may be prepared by reacting a long-chain alcohol with a dibasic carboxylic acid anhydride to form a monoalkyl ester, reacting this with thionyl chloride to give the acid chloride which is then condensed with a coupler component having an amino group.
Patent GB-1360395-A (GB)
Title: Reversible seat for a vehicle
IPC: B61D33/00
Filed: 1971-11-15
Abstract: 1360395 Reversible seats DEVON CONVERSIONS Ltd 15 Nov 1971 [20 Aug 1970] 40169/70 Headings A4H and A4J A reversible seat for a vehicle such as a caravan comprises a base 8 slidably mounted on rails 10 secured to the vehicle floor and a seating member 15 having integral back, seat and arm rests 16, 17, 18 respectively, the seating member being movable from a forwardly facing position Fig. 1, (not shown) to a rearwardly facing position Fig. 2, (not shown) in which access is made for a table, guide members 13 provided at each corner of the base form guide channels 14 in which the seating member 15 is removably supported. The seating member may be used to form a bed surface with a fixed seat of the vehicle. The base which may be used as a locker is closed by the seat rest 17 and a lid 19.
Patent GB-1198832-A (GB)
Title: Mechanical Handling Apparatus for Refueling Nuclear Reactors
Inventor: BELLINGER RONALD
IPC: B25J17/02
Filed: 1967-09-05
Abstract: 1,198,832. Grabs for nuclear fuel elements. STRACHEN & HENSHAW Ltd. 1 Nov., 1968 [5 Sept., 1967], No. 40582/67. Heading B8H. An articulated arm, which supports grippers 20 for lifting nuclear fuel elements, has a heat resistant casing comprising three parts 2, 4, 6 which are connected at their joints by stainless steel sealing bellows 31, 32. A rod 8 pivoted to portions 2, 6 forms a parallelogram linkage with portion 4 of the casing and the arm is moved by a reciprocating rod 14 acting through a cam 12 and slot 13 which houses a pin 19 attached by plates 16 to the portion 4. The jaws are operated by a screw and nut 24, 26 and are sealed by a bellows 30. The interior of the casing may be pressurized.
Patent GB-1024474-A (GB)
Title: Improvements in the carbonization and gasification of carbonaceous materials
Inventor: SAVAGE ROBERT LINCOLN
IPC: C10B49/08
Filed: 1962-10-27
Abstract: A method of flash carbonizing solid carbonaceous material, e.g. bituminous coal or lignite, comprises exposing the coal to a temperature between 1200 DEG  to 2500 DEG  F. (650 DEG  to 1361 DEG C.) for up to 5 seconds in the presence of 0.1 to 0.3 pounds of oxygen per pound of dry coal to convert a substantial proportion, e.g. 50 to 85%, by weight of the coal to a low volatile char, i.e. one containing 10 to 25% volatiles, and to recover synthesis gas without substantial tar formation.  Pressures up to 1000 p.s.i.g. are mentioned.  Powdered coal from a bin 10 is entrained in steam, with recycle gas, and delivered, <PICT:1024474/C4-C5/1> with oxygen from a source 12, to the carbonizer 13.  The oxygen may be in the form of air, but is preferably pure oxygen, the steam and recycle gas being optional. Gas leaves at 22 for a waste heat boiler 23, tar vapour being cracked and gasified in an annular space 18, gas being recycled via 24, 11 if desired.  Char leaving the carbonizer at 17 is quenched by steam from the boiler 23, a separator 30 removing char from gaseous products and steam which leave at 31.  A plurality of steam and/or oxygen inlets to the chamber 13 may be used, and they may be tangential.  Steam in the proportions of 0.001 to 0.3 pounds (including moisture in the coal) per pound of dry coal may be included in the reaction, which may be in two stages, the flash carbonization being followed by steam reforming of the gases produced.  Powdered coals mentioned are those of low (21 to 35% V.M.) and medium (36 to 45% V.M.) volatility, e.g. a lignite comprising 33% C., 26% V.M., 41% moisture,and a medium volatile bituminous coal (22 to 31% V.M.). Seven examples are described.
Patent GB-1049058-A (GB)
Title: mprovements in or relating to electrolytes for electrolytic capacitors and capacitors employing same
IPC: H01G9/02
Filed: 1964-10-07
Abstract: 1,049,058. Capacitors. LES CONDENSATEURS SIC SAFCO. Oct. 7, 1964 [Oct. 8, 1963], No. 40863/64. Heading H1M. An electrolytic capacitor comprises an aqueous electrolyte containing anions of at least one aliphatic dicarboxylic acid and cations of an alkanol amine dissolved in a water-alcohol cosolvent containing a buffering agent. The capacitor may be conventionally wound of aluminium foils separated by porous spacers of e.g. cellulose paper or glass-cloth impregnated in the electrolyte. The alcohol may be an aliphatic monohydric or dihydric alcohol e.g. methanol, ethanol, n-propanol, i-propanol, butanol, amyl alcohol, hexanol, ethylene propylene, butylene, diethylethylene or triethylene glycol; or a mixture thereof. The buffer may be boric acid and the alkanolamine may be triethanolamine, tri iso propanolamine, diethanolamine, di iso propanolamine or N- methyldiethanol-amine or a mixture thereof. The aliphatic dicarboxylic acid may be saturated, such as adipic, allomucic, aspartic, azelaic, ethyl malonic, fluoro adipic, fluoroglutanic, fluorosuccinic, glutamic, glutaric, malic, methyl succinic, mucic, pimelic, saccharic, sebacic, succinic, talomucic, or tartaric acids; or unsaturated such as citraconic fumaric, glutaconic, glutinic, itaconic, maleic, mesoconic, mucanic, α dihydromuconic, or # dihydromuconic acids; and may be fluoro, hydroxy, alkyl, or amino substituted. Ammonia and phosphates, chromates and molybdates may be added. The wound capacitors may be protected by plastic, e.g. polyolefine or cellulose polyolefine sheets, canned, and sealed with tar or wax.
Patent GB-940350-A (GB)
Title: Improvements relating to testing and sorting cylindrical articles
IPC: B07C5/08
Filed: 1961-11-16
Abstract: 940,350. Sorting cylindrical objects. GUNTHER WAGNER VERWALTUNGS G.m.b.H. Nov. 16,1961 [Nov. 16, 1960],No. 41068/61. Heading G1M. Apparatus for testing cylindrical objects such as cans for circularity of cross-section and rejecting those which deviate from circularity, comprises a resiliently mounted plate 3 down which the object is rolled by a moving belt 4 between guide rails, depression of the plate by more than a predetermined amount closing switches 15 (in a manner described below) to activate an electromagnet 10 which opens a path to a reject station 12. A further test for faulty cans having one missing end is made by means of the second pair 8a (see Fig. 3) of a series of guide rollers 8, mounted on spring-loaded pivoting arms 7 which close further switches 9 on deflection beyond a predetermined tolerance. In the case of a faulty object only one of the switches 9 will be closed and the arrangement is such that only asymmetrical operation of the switches 9 allows the electromagnet circuit to be energized. The reject mechanism, shown in Fig. 4, comprises a pair of levers 41a, 41b, pivoted at 45, having closure members 42 which prevent an object falling down the reject channel. When the electromagnet 10 is activated, the armature 44 moves upwards to open the levers. A rejected object will actuate a switch 17 to disable the electromagnet thus priming the apparatus for the next object.