baber/WOPTO huggingface dataset:
Patent GB-996864-A (GB)
Title: Atmospheric fall-out collector
Inventor: BLONDEAU EMILE
IPC: G01T7/02
Filed: 1963-02-11
Abstract: 996, 864. Turbidometers; rain gauges. COMMISSARIAT A L'ENERGIE ATOMIQUE. Feb. 11, 1963 [Feb. 9, 1962; Dec. 5, 1962], No. 5446/63. Heading G1X. [Also in Division H2] A device for collecting particles such as dust or radio-active fall-out comprises a casing 6, Fig. 3, housing the components of a conventional rain gauge, viz, a shaft 1 with gauged orifice 2, funnel 3 and outlet 4 leading to a container 5, there being within a portion 10 of shaft 1 a tray 31 coated with adhesive to retain the particles when rain is not falling. To prevent rain or other precipitation, however, from washing the particles off the tray, whenever a detector 13 senses precipitation, a motor control circuit housed in box 15 causes rotation of a cover 35 5 through 180 degrees to protect the tray 31. As shown, Fig. 4, the motor circuit may be operated from mains 50 or storage battery 52 according to the positions of coupled switches 54- 57. When rain falls, frusto-conical elements 37a, 37b forming detector 13, allows current to flow to transistor 64 and relay 62 so that switches 76, 98 move to the a position. Current now flows through relay 68 and a motor 84 which rotates both cover 35 and a cam 86, the arrangement being such that after 180 degrees rotation,pawl 94 enters cam notch 88, switch 96 is opened and the motor stops. Since relay 68 has been energized switches 78, 79 allow blower 80 to supply air through duct 14 to detector 13, and heater 82, within the detector 13, to operate, a thermostat 100 preventing overheating of the heater 82. As soon as the rain stops, therefore, the detector 13 dries, relay 62 allows switches 76, 98 to return to their b positions, and, since cam 86 has caused switch 92 to be in its b position motor 84 is again operated. After cover 35 has rotated through 180 degrees to its initial position,pawl 90 enters cam notch 88 and the motor 84 is switched off. Should dew form on detector 13, a portion thereof with elements 39a, 39b more closely spaced than elements 37a, 37b, causes operation of transistor 60 and relay 58, the consequent closing of switch 74 allowing relay 68 to operate so that blower 80 and heater 82 are actuated. The consequent drying of detector 13 allows relays 58, 68 to return to their initial positions and the blower 80 and heater 82 to be switched off. In modifications, the cover 35 is rigid with a shaft carrying the tray, so that when the cover is actuated the tray turns upside down, and the dew detector is protected by a movable member during rainfall.
Patent GB-838063-A (GB)
Title: Improvements in and relating to optical apparatus with anti-reflector means
Inventor: STEELE EDWIN GEORGE
IPC: G03B17/04
Filed: 1956-02-22
Abstract: 838,063. Photographic apparatus. MICROPRECISION PRODUCTS Ltd. Feb. 21, 1957 [Feb. 22, 1956], No. 5474/56. Class 98(1) An anti-reflection member, particularly for forming parts of a photographic camera, consists of a sheet slit along a series of substantially parallel straight lines to form a plurality of slats bent up from the plane of the sheet to form a series of non-coplanar surfaces so that when the sheet is arranged with the edges of the slats facing the incident light, light falling on one of the slats is deflected therefrom into one of the slots. As shown four planar members are joined at the edges to form a body of rectangular section disposed between the lens 11 and focal plane 12 of photographic camera. Light rays such as 15 and 16 from the lens which fall upon the members are deflected by slats 26 into the slots between them and so prevented from reaching the focal plane 12.
Patent GB-974332-A (GB)
Title: Improvements in and relating to apparatus for audio-vocal conditioning and to a method and apparatus for modifying the acoustic properties of a room
IPC: H04H60/04
Filed: 1961-02-14
Abstract: 974,332. Voice training equipment. SOC. CIVILE D'ETUDES ET DE BREVETS MOTA. Feb. 14, 1961 [Feb. 15, 1960 (4)], No. 5494/61. Heading H4J. In apparatus for use in speech training and for modifying the effective acoustic properties of a room, sound signals from a microphone 3 are transmitted to headphones 40 over one of two channels 10, 20. The intensity of the signals is detected by a circuit 30 which opens channel 10 when the intensity (signal 50, Fig. 2), falls below a critical value I 0 , and opens channel 20 when the intensity (signal 52) rises above the critical value only one channel being open at any time. Channel 10 includes a filter 13 accepting mainly low frequencies (pass characteristic E 1 , Fig. 2). Channel 20 includes a filter 23 accepting mainly high frequencies (pass characteristic E 2 ). A switch 28 enables different filters 26, 27 to be substituted for filter 23. The intensity of the microphone signals is indicated by a meter 42. The complete circuit of Fig. 1 is illustrated in Fig. 3 (not shown). Microphone circuit 1.-The microphone 3 is followed by a pre-amplifier 4, a volume control 5 and an amplifier 6. The circuit 1 is linked to channels 10, 20 by an impedance matching amplifier 7. Channels 10, 20.-Volume controls 11, 21 control the signals applied to amplifiers 12, 22. Adjustable filters 13, 23 and gates 15, 25 pass the signals to the output stage 2. The auxiliary channel 30 opens gates 15, 25 only one at a time. Auxiliary channel 30.-A volume control 31 and an amplifier 32 feed the signal from the microphone circuit 1 to a detector 33 which controls a thermionic flip-flop 35 in accordance with the intensity of the signal. Gate 15 opens for signals of low intensity and gate 25 opens for signals of high intensity. The time constant of the flip-flop is controlled by a device 34. The time T 1  taken for the flip-flop to switch over from open channel 10 to channel 20 is longer than the time T 2  taken to switch back. Output circuit.-The two channels 10, 20 are linked to headphones 40 by an amplifier 8 and a volume control 9. In an alternative output arrangement, Fig. 10, one earphone 73 is connected to the channels 10, 20, as before and the other earphone 63 is connected in channel 10 before the gate 15. Loud-speakers may be used instead of earphones (Fig. 11, not shown), in order to control the effective acoustic properties of a room.
Patent GB-855015-A (GB)
Title: Method of recovery of alkaline earth metal silicates
IPC: C01B33/24
Filed: 1957-02-19
Abstract: An alkaline earth metal silicate is produced and recovered from the resulting aqueous slurry thereof by reacting an alkali metal silicate with not more than 5% mole of a water-soluble alkaline earth metal salt in excess of that required to neutralise the alkali metal oxide content of said silicate, thereafter establishing in the slurry formed at least 0.15 mole of a water-soluble alkaline earth metal salt per mole of said silicate and finally separating said silicate. The slurry may be formed as described and claimed in Specification 855,014; and may be diluted prior to the addition of the alkaline earth metal salt.  The process is described in relation to the recovery of calcium silicate; calcium, strontium and barium chlorides, and strontium nitrate are referred to as the added alkaline earth metal salt, and it is preferred to use an alkaline earth metal salt in which the metal corresponds to that in the silicate.  Not more than 0.3 mole of the alkaline earth metal salt need normally be used per mole of silicate.  The concentration of the solid in the slurry may be from 0.5-30% wt.  Separation may be by decanting, filtering or centrifuging or by decantation combined with filtering, centrifuging or thermal drying.  Mechanical thickeners may also be used, e.g. a plurality of thickeners in series.
Patent GB-1419045-A (GB)
Title: Pyridinethiol-tin compounds and process for the preparation of the same
IPC: C07B61/00
Filed: 1974-02-06
Abstract: 1419045 Pyridinethiol-tin compounds UBE INDUSTRIES Ltd 6 Feb 1974 [24 Aug 1973] 05568/74 Heading C2C [Also in Division C3] Novel compounds of formula RS-SnX 2 -SR<SP>1</SP> where R and R<SP>1</SP> are selected from wherein each of R 1 -R 8  represents hydrogen, halogen, nitro, nitroso, amino, cyano, carboxyl, carbamoyl, thiocarbamoyl, alkoxycarbonyl having 2 to 11 carbon atoms, hydroxyl, hydrazinocarbonyl, mercapto, acyloxy, alkoxy or acylamino having 1 to 10 carbon atoms, phenyl, substituted phenyl, linear or branched alkyl having I to 12 carbon atoms or a substituted derivative thereof, linear or branched alkenyl having 2 to 12 carbon atoms or a substituted derivative thereof, or aralkyl or alkaryl having 7 to 12 carbon atoms or a substituted derivative thereof, wherein the substituents in the substituted derivates are selected from a halogen atom and the above-mentioned groups, and not less than two of the substituents R 1 -R 4  and R 5 -R 8  are selected from a hydrogen atom and unsubstituted linear and branched alkyl each having 1 to 12 carbon atoms and in no case are R 5 , R 6 , R 7  and R 8  all hydrogen, and X is F, Cl, Br or I, are prepared by (1) reacting RS-SR<SP>1</SP> with SnX 2 ; (2) reacting dichloro bis(acetylacetonato)tin (IV) with RSH; (3) reacting RSH with SnX 4  and (4) reacting RSH-SnX 4  complex with a strong organic base. Other compounds prepared are: 2-pyridinethiol-stannic chloride complex; 2,2<SP>1</SP> - dipyridyldisulphide - stannic chloride complex; bis(3 - cyano - 4 - methyl - 6- phenyl - 2 - pyridyl)disulphide by I 2  oxidation of the corresponding thiol; 4,6-dimethyl-2- pyndimethiol and 3 - carboxy - 4,6 - dimethyl- 2-pyridimethiol by the action of aq. HBr on the corresponding 3-cyano compound; bis(4,6-dimethyl - 2 - pyridyl)disulphide from the thiol; 4 - methyl - 6 - phenyl - 2 - pryidimethiol from the 3-cyano compound; bis(4-methyl-6-phenyl- 2-pyridyl)disulphide from the thiol; 3-ethoxycarbonyl - 6 - methyl - 2 - pyridimethiol by estherification; bis(3 - ethoxycarbonyl - 6 - methyl - 2- pyridyl)disulphide from the thiol; bis(3-cyano- 6 - methyl - 2 - pyridyl)disulphide from the thiol. The above novel compounds are used to stabilize polyolefins.
Patent GB-206075-A (GB)
Title: Improvements in or relating to mechanical toys
IPC: A63H29/20
Filed: 1923-02-26
Abstract: 206,075. Marks, E. C. R., (Dayton Friction Toy Co.). Feb. 26, 1923. Mechanical toys.-Relates to locomotive toys of the type driven by a horizontal inertia wheel 11 connected by gearing with the driving-wheels 3 of the toy. The invention consists in pivoting and enclosing the wheel 11 in a housing which is completely contained within the body of the toy and is located above the level of the axis of the driving- wheels. The housing consists of a metal plate 7 bent to the shape shown and provided with an indentation 8 to form a point bearing for the axle of the wheel 11.
Patent GB-310130-A (GB)
Title: Improvements in and relating to convertible furniture
IPC: A47C17/62
Filed: 1928-02-23
Abstract: 310,130. Somerville, J. T., and Hume, C. F. Feb. 23, 1928. Mattresses.-In a convertible table and bedstead, the mattress frame consists of two or more parts of unequal length hinged together near the middle line so that when the shorter part is folded over the longer a. space is left for the accommodation of the bolster, pillows, &c. As shown in Fig. 3, the mattress frame consists of two parts 8, 9, the shorter part 8 being supported, when extended, by legs 14. The ends 11, 12 are curved, and are integral with or riveted to the sides of the mattress frame, which is preferably formed of angle-iron with braced corners, and is adapted to strengthen the table frame. The mattress may consist of two parts of diamond-mesh wires connected bv a central panel of transverse and longitudinal spiral springs.
Patent GB-289040-A (GB)
Title: Stabilizing apparatus for airships
IPC: B64C1/00
Filed: 1928-02-23
Abstract: 289,040. Goodyear-Zeppelin Corporation, (Assignees of Klemperer, W. B.). April 22, 1927, [Convention date]. Steering and regulating altitude.-Means for maintaining an airship on a substantially straight course or at a certain altitude comprises two air passages 27, 28, Fig. 2, arranged symmetrically on either side of the longitudinal axis of a rotatable cylinder 24, vertically or horizontally arranged, or of an airship member of streamiine form, so that when cross-currents are encountered, the difference in air-pressures in the passages moves a diaphragm or a mercury column which operates a servomotor connected to the rudder or elevator to keep the airship on its course. The pilot also has control of the rudder either directly or through the servomotor, and can alter the position of the air-passages relative to the ship's axis. Yawmeters may be arranged forward and aft and may operate rudders arranged at the front and rear of the airship. The cylinder 24, Fig. 2, arranged, for example, on the nose of the airship or on the leading edge of a fin or gondola, is normally latched against rotation on its spindle and the passages are connected by flexible conduits 29, 30 to a manometer 33. The manometer controls the valve 36 of a servomotor 43, the piston rod of which is connected by cables 56, 57 to operate the rudder 13. Any suitable mechanical or electrical servomotor may be used. A steering-wheel 14 is connected by cables 15 to operate the rudder directly, spring 19 being provided in the cables. The wheel can also be operated to adjust the cylinder 24 and may also operate through the servometer by shifting the piston 36 through cables 68 and gearing 66, 67. When front and rear rudders are provided, they are oppositely operated by the servomotor or servomotors. Two-part rudders may be provided, operated in part by the yawmeter, and in part manually. The means described may operate tiltable propellers, or variable-pitch propellers embodying laterally-rotatable blades. According to the Specification as open to inspection under Sect. 91 (3) (a), the air passages may be formed direct in the ship's bow &c., and devices sensitive to changes in air velocity may be used, for example the Venturi tube arrangement 84, 85 shown in Fig. 8 (Cancelled), or electrical anemometers. This subject-matter does not appear in the Specification as accepted.
Patent GB-306707-A (GB)
Title: Improvements in or relating to electrical induction furnaces
IPC: H05B6/02
Filed: 1928-02-23
Abstract: 306,707. Davis, N. R., and Metropolitan-Vickers Electrical Co., Ltd. Feb. 23, 1928. Induction furnaces. -The induction coil 8 is supplied with current from a source of fixed periodicity, such as a dynamoelectric machine 16, and is provided with one or more taps 11 to or from which connection of the machine 16 and condenser 15 may be transferred to maintain a constant effective inductance in the circuit. The switch 14 effecting the alteration may be operated manually or by a relay in the supply circuit which responds to the reactive component of the current or the power factor.
Patent GB-848320-A (GB)
Title: Improvements relating to the thermal decomposition or pyrolysis of hydrocarbons
IPC: C07C4/04
Filed: 1956-02-24
Abstract: <PICT:0848320/IV(b)/1> The partial thermal decomposition of hydrocarbons such as methane to give acetylene is carried out in a three stage treatment in three successive chambers, the first consisting in mixing the hydrocarbon with only a portion of the total oxygen under pressure and heating the mixture to a degree at which the mixture is rapidly and promptly responsive to the second stage of treatment in which the gas is rapidly further mixed in the second chamber with the remaining oxygen under pressure and subjecting the mixture to a substantially higher temperature sufficient to cause rapid but controlled molecular breakdown of the hydrocarbon, the second chamber having a length to diameter ratio of not more than 4 to 1, and the incomplete thermal decomposition products are promptly withdrawn and are rapidly cooled in the third chamber.  In a preferred embodiment, a hydrocarbon is sprayed by the twin fluid atomizer 5 into the chamber A and a mixture of tail gas with air or oxygen is also fed in through apertures 4, the pressure being maintained at 10 atmospheres, and the temperatures at 400 DEG -500 DEG  C.  The mixture entering the chamber B is subjected to fast mixing with the jets of tail gas and air or oxygen entering through apertures 4 and a temperature of 1,000 DEG -1,200 DEG  C. is maintained and a slightly lower pressure than in chamber A.  The gases then pass through the multiple orifices in the plate 7 and are spread into the chamber C which is maintained at a lower pressure than chamber B and at a temperature of 100 DEG -150 DEG  C.  A cooling medium which may be water under pressure is sprayed by the nozzles 8 into the chamber C. Specifications 772,094 and 848,319 are referred to.
Patent GB-819124-A (GB)
Title: Coin telling apparatus
IPC: G07D9/04
Filed: 1958-02-24
Abstract: 819,124. Money-delivering apparatus. HEDELIUS, T. F. Feb. 24, 1958 [March 9, 1957], No. 5892/58. Class 27 [Also in Group XIX] Apparatus for delivering quantities of coins from one or more stacks comprises one or more wheels 8 on a shaft 6 rotatable. by a handle 10 and fingers 12 on the wheels for engaging the bottom coin of each stack at least some of the fingers being removable or retractable so that the number of coins delivered at each revolution of the shaft 6 can be varied. The fingers may be fitted as required in a number of slots 40 in the wheels or they can be retractable from operative position and adjustable in their spacing along the periphery of the wheels. The bottom coin of the stacks rests on shelves 14, 16 and the fingers pass along a slot 28 between the two shelves. As the bottom coin is pushed along by the finger 12, it loses contact with the shorter shelf 14 and tilts towards that side and is then deflected by an upright rim 32 on the longer shelf 16 into a vertical position to pass into a delivery shoot 34 hinged on a shaft 36. The finger may initially engage the coin edge at a point in a vertical plane passing through the shaft 6, so that the contact is between two parallel surfaces, and, although the subsequent path of the finger is downwardly arcuate, the finger and coin will remain in contact because the coin tilts towards the side of the shelf 14. A spring-loaded catch lever 42 having a notch 44 engaging a stud 46 on one of the wheels 8 ensures that the shaft 6 can be rotated in one direction only and will be locked after one revolution.
Patent GB-449273-A (GB)
Title: Improvements in hinging brackets and in the manufacture thereof
IPC: B60J1/04
Filed: 1935-02-25
Abstract: 449,273. Making hinging brackets. BROOK, E. J. L., (trading as LESBROOK & CO.), Icknield Square, Monument Road, Birmingham. Feb. 25, 1935, No. 5909. [Class 83 (ii)] [See also Group XXV] A hinging bracket, especially for pivotally mounting a motor vehicle windscreen includes a hinging arm and barrel formed integrally from a metal blank, the ends of the barrel being subsequently welded to the faces of apertured ears formed integral with the side walls of the bracket. The end 13, Fig. 3, of a blank 10 is curled to form a barrel to receive a hinge pin 4, Fig. 1, the edge portions are bent to form flanges 3, the holes 12 thereby being brought into alignment with the bore of the barrel, and the flanges and barrel are electrically welded. The pin 4 engages lugs 5 secured to an attachment plate 1. The windscreen bracket 7 is secured to an arm 6 mounted on the hinge arm by a clamping screw 8 and an adjusting screw 9.
Patent GB-695231-A (GB)
Title: Flywheel magnetos
IPC: H02K21/22
Filed: 1951-03-13
Abstract: 695,231. Ignition magnetos. WICO ELECTRIC CO. March 13, 1951 [June 10, 1950], No. 5988/51. Class 35. A high-speed fly-wheel magneto has a rotating permanent magnet connecting two pole-shoes and a stator having three diverging legs integrally connected at their inner ends, the corresponding spacing and arcuate lengths of the surfaces of the shoes and of the outer ends of legs being such, that with a predetermined closure and opening of the primary coil once every revolution, pre-ignition is prevented. Fig. 2 shows a fly-wheel 1 carrying a permanent magnet 7 connecting two pole-shoes 8, 9, the adjacent tips of which are separated by a small distance. The stator has an armature with three diverging legs 16, 17, 18. The respective dimensions of the pole-shoes and of the ends of the three legs are: the arcuate length of the face 19 of the leg 16 is slightly greater than that between the adjacent tips 12, 13 of the shoes; the angular spacing between the adjacent tips of the legs 16, 17 is equal to that between the adjacent tips of the legs 16, 18 ; the angular distance between the leading and lagging tips of each pole-shoo is slightly greater than that between the adjacent tips of adjacent legs, and the surfaces of the outer legs 17, 18 are equal to one another but greater than that of the middle leg 16. Fig. 3 shows a supporting laminated member 29 on which are mounted the legs 16, 17, 18 and other stator parts. The plate 29 has a central hole 34 to accommodate a hub 5 in which the crank-shaft 2 rotates. The plate 29 is strengthened by having two ribs 39, Fig. 4 (not shown). The ignition coils are mounted on a tubular core 48 which is held securely in the central leg 16 by a spring 45. Fig. 12 shows a complete breaker unit carrying a detachable condenser 67 having a terminal 69 which is connected to a spring 76 which presses against the breaker lever 71. Figs. 13, 14 show the rotor positions for an early and a late time of closure of the breaker points respectively. Fig. 13 provides for a large factor of safety, but Fig. 14 gives adequate safety against pre-ignition. In Fig. 14 the leading tip 12 of the shoe 8 is no closer than 5 degrees to the leading tip 22 of the leg 16. The means for closing and opening the primary coil includes a reversible mounting for the breaker mechanism thereof. Specifications 491,110 and 627,172 are referred to.
Patent GB-511800-A (GB)
Title: Filter-layers for colour photography
IPC: G03C1/825
Filed: 1938-02-25
Abstract: 511,800. Filter layers for colour photography. KODAK, Ltd., and CROWTHER, R. E. Feb. 25, 1938, No. 6063. [Class 98 (ii)] Photographic material more particularly for colour photography includes a filter layer or layers comprising a coloured dispersion of silver sulphide, silver selenide, or silver telluride. Multi layer material comprises a support, a red sensitive layer, a gelatine intermediate layer or a yellow -filter layer, a green sensitive layer, a yellow filter layer and a not specially sensitized blue sensitive layer. The position of the red and green sensitive layers may be interchanged. The emulsion layers may be on one or both sides of the support, and any or all may contain colour formers. The material may comprise a mixed emulsion layer. The filter layers may be applied to lenticular or multicular screen type colour photographic material. A yellow silver sulphide filter layer is prepared by coating a solution of silver nitrate and gelatine in water on to a support, and immersing the coated support in ammoniacal thiourea solution until the desired depth of yellow is reached. The coloured gelatine is washed and stripped from the support, and may be re-melted and treated with a hardening agent. The'production of the filter material may be effected in a vessel instead of on. a support. The filter layer is decolorized by a solution of potassium ferricyanide and sodium thiosulphate, but is not affected by a silver rehalogenizing bath such as a solution containing potassium ferricyanide, ammonia, and potassium bromide. Red, dispersions of silver sulphide, selenide, or telluride may also be made. Specifications 441,325, 500,611, 500,793 and 503,752 are referred The Provisional Specification describes also the use of colloidal sulphur, selenium and tellurium in filter layers.