baber/WOPTO huggingface dataset:
Patent GB-643412-A (GB)
Title: Improvements in or relating to speed governing gear for engines and other machines
IPC: G05D13/08
Filed: 1948-03-15
Abstract: 643,412. Centrifugal governors. HARWOOD, C. D. March 15, 1948, No. 7754. [Class 57] A governing mechanism for an engine &c. comprises a centrifugal governor driven at a speed proportional to that of the engine and adapted to control the latter through a differential mechanism the centre member 25 of which is connected to the engine regulating means 33, one outer member 19 is continuously rotated and the other outer member 24 is adapted to be pivotally coupled by the action of governor to either a drive member 37, continuously rotated at a speed greater than that required to hold the centre member stationary, or to a braking surface 36. The member 19 is driven from a shaft 7, and in the opposite direction. through reduction gearing and the drive member 37 is rotatably connected to and axially slidable on the shaft 7, which also drives a ball carrier member 9 of the governor having five radially guided balls 10. Outward movement of the latter causes a cup 12 and a clutch member 39 to be displaced to the right against a spring 14, thus allowing a clutch plate 34 rotatably connected to the differential member 24 to engage the braking surface 36 which thereby causes the centre or planet member of the differential to be rotated and the engine regulator moved to decrease speed. If the engine speed falls below a predetermined value the governor spring forces cup 12, member 39, and drive member 37 to the left causing clutch plate 34 to be moved away from the braking surface and to be driven at the speed of the shaft 7 which causes the centre member and the regulating means to be moved to increase speed. At the set governed speed the clutch plate is partially engaged by the drive member and the braking surface so that slip occurs and the centre member is held stationary. The loading of the governor spring may be adjusted. A friction clutch is inserted in the transmission between the centre member and the engine regulating means so that the latter may be independently adjusted. In a modification the differential gear comprises concentric " outer" members spaced apart by balls spring-urged against the larger diameter member. Between the balls project rollers mounted on the centre member of the differential.
Patent GB-349174-A (GB)
Title: Method of and apparatus for treating tobacco
IPC: A24B15/22
Filed: 1930-03-10
Abstract: In a method of treating tobacco to improve the quality, cured and aged tobacco of suitable moisture content is subjected as uniformly as possible in every part thereof to the action of light containing ultra-violet rays, and preferably also a small proportion of infra-red and visible rays.  The temperature of the tobacco is preferably raised above 70 DEG  during treatment and the tobacco is stirred to subject all parts of it to the rays.  In the apparatus shown, a rotating drum 2 in which the tobacco is treated is enclosed in a room 1.  The <PICT:0349174/III/1> drum rotates on rollers 4, one of which is driven from a motor 6, and the ends of the drum are closed by fixed heads 12, 13 with flanges to prevent the escape of light.  Sets of pins 15 in the p  drum lift the tobacco and allow it to drop as the drum rotates, and the drum is inclined so that the tobacco travels from the inlet to the outlet end.  Tobacco is fed to the drum from a hopper 19 by a conveyer belt 16 covered by a hood 18, and is delivered from the drum through an outlet 25 to a conveyer belt 21 covered by a hood 24.  The belts 16, 21 are driven from the motor 6 through belt gearing 7, 27, 29, 31.  The source of radiation consists of a number of arc lamps 40 provided with chromiumplated reflectors 42 and enclosed in a pair of hoods 32, 33 at the outer side of each of the heads 12, 13.  The part 32 of each hood is fixed to the adjacent head and the part 33 is pivoted at 60 and secured by a latch to the part 32.  Light-admission openings 34 in the heads 12, 13 can be closed by counter-weighted slides 35. The heads 12, 13 and the hoods 33 are connected by pipes 43, 50 and a header 45 to a ventilating fan.  Baffles 66 prevent sparks from the carbons from igniting the tobacco.  Specification 331,026, [Class 1 (i), Chemical processes &c.], is referred to.
Patent GB-916130-A (GB)
Title: Preparation of 1-fluoro-1-olefins
IPC: C07C17/08
Filed: 1961-03-03
Abstract: In the production of 1-fluoro-1-olefines (see Group IV(b)) the catalyst is subjected to gamma radiation before or during the reaction, and may also be reactivated by gamma radiation.  The catalyst may be one known for the production of vinyl fluoride from acetylene and hydrogen fluoride, alone or supported; or a transition metal such as titanium or zirconium or their oxides, alone or on, e.g. charcoal; or alumina.  Examples use alumina and HgO on C.ALSO:1-Fluoro-1-olefines are prepared by passing anhydrous hydrogen fluoride and a 1-alkyne or a 1,1-difluoroalkane straight chain compound in the vapour phase in contact with a metal-containing catalyst at 20-100 DEG C., the catalyst being subjected to gamma radiation before or during the reaction.  Specified alkynes are acetylene, propyne, butyne, pentyne, hexyne, heptyne and octyne; specified difluoroalkanes are 1,1-difluoro-ethane, -propane, -butane, -pentane, -hexane and -heptane.  The catalyst may be one known for the production of vinyl fluoride from acetylene and hydrogen fluoride, alone or supported; or a transition metal such as titanium and zirconium or their oxides, alone or on e.g. charcoal; or alumina. Examples prepare vinyl fluoride using HgO on C, and alumina as catalysts.
Patent GB-124104-A (GB)
Title: Improved Minimum Current Cut-out and Apparatus for Regulating the Tension and the Voltage and Current from a Dynamo.
Inventor: RANSFORD ROBERT BOLTON
IPC: H01H71/00
Filed: 1918-05-10
Abstract: 124,104. Ransford, R. B., (F.I.A.T. Fabbrica Italiana Automobili Torino). May 10, 1918. Lighting systems; regulation, automatic systems and apparatus for.-In a combined reversecurrent cut-out and voltage-regulator for a variable - speed generator supplying lamps and a battery, an electro-magnet with the usual shunt and series coils b, c, acts on a cut-in armature c, when the voltage of the generator is sufficiently high. The armature is mounted on a spring g, and one of the switch contacts h, h<1> is formed thereon. The electro-magnet also acts on an armature f which is adjustably spring-pressed on to powdered carbon m. The carbon is in the field circuit. As the generated voltage or current rises, the armature f is raised and the resistance of the carbon powder increased. On excessive movement of the armature a shunt circuit to the field coil is closed at the contacts p, p<1>.
Patent GB-936336-A (GB)
Title: Preparation of symmetrical polyene compounds
IPC: C07C1/207
Filed: 1960-03-07
Abstract: A symmetrical polyene hydrocarbon having the formula <FORM:0936336/III/1> wherein R is a monovalent hydrocarbon radical and R1 is an alkyl radical, such as lycopene is obtained by reacting an unsaturated aldehyde having the formula <FORM:0936336/III/2> with phosphorus pentasulphide in an organic amine solvent medium under substantially anhydrous conditions at an elevated temperature which is below the decomposition temperature of the polyene hydrocarbon. The preferred solvent is pyridine but 2-picoline, 3-picoline, 4-picoline, diethylaniline, monoethylaniline or quinoline may be used.  From 0,2 to 3 moles of phosphorus pentasulphide per mol. of aldehyde reactant is usually employed.  In Example 5, lycopene is produced by reacting a solution in pyridine of the hydroquinone complex of pseudo-vitamin aldehyde <FORM:0936336/III/3> with phosphorus pentasulphide and heated on a steam bath.  It was extracted with diethyl ether, washed with acid and alkali and then dried on anhydrous sodium sulphate.  Specification 728,989 is referred to.ALSO:A symmetrical polyene hydrocarbon having the formula:-  <FORM:0936336/IV(a)/1> wherein R is a monovalent hydrocarbon radical and R1 is an alkyl radical is obtained by reacting an unsaturated aldehyde having the formula <FORM:0936336/IV(a)/2> with phosphorus pentasulphide in an organic amine solvent medium under substantially anhydrous conditions at an elevated temperature which is below the decomposition temperature of the polyene hydrocarbon.  The process is particularly applicable to the preparation of b -carotene from 2.6-trans, trans vitamin A aldehyde, and lycopene from pseudo-vitamin A aldehyde; other suitable starting materials include b -ionylidene acetaldehyde, 3-methyl-7-phenyl-2.4.6-heptatrienal, 3-methyl-5-phenyl-2.4-pentadienal, 3-ethyl-5-naphthyl-2.4-pentadienal, 3-isopropyl-5-cyclobutyl-2.4-pentadienal, 3-methyl-2.4-hexadienal, 3-n-butyl-6-phenyl-2.4-hexadienal, and 3-n-hexyl-5-bornyl-2.4-pentadienal.  The preferred solvent is pyridine, but 2-picoline, 3-picoline, 4-picoline, diethylanitene, monoethylaniline or quinoline may be used.  From 0,2 to 3 moles of phosphorus pentasulphide per mol of aldehyde reactant is usually employed.  The pseudo-vitamin A aldhehyde which has the formula:- <FORM:0936336/IV(a)/3> may be produced by refluxing pseudo-ionone, propargyl bromide, magnesium and diethyl ether, adding 4,4-dimethoxy-2-butanone to the cooled mixture, acidifying, and then hydrogenating in the presence of palladium on charcoal in quinoline and methyl ethyl ketone.  The resulting reduced compound was refluxed in methyl ethyl ketone and then washed with sulphuric acid and water. The aldehyde may be complexed with hydroquinone in a mixture of diethyl ether and petroleum ether.  Specification 728,989 is referred to.
Patent GB-164528-A (GB)
Title: Improvements in means for controlling the action of a gas producer regulator
IPC: C10J3/72
Filed: 1920-03-17
Abstract: 164,528. Haddan, R., (Chowning Regulator Corporation). March 17, 1920. Producers.-The blast-supply to a gas-producer used in connection with a regenerative furnace, is cut off during the period of reversal of the furnace by a device brought into operation either by the lever that controls the furnace reversal or by increase of pressure in the producer itself. The steam-pipe 7 of the producer A has a valve 8 operated through levers 9, 10 by a diaphragm 5 in a chamber 6. A pipe 13 connects the space under the diaphragm by pipes 15, 16 with the gas outlet pipe B, the pipe 15 having a throttle valve 46. Air under pressure is supplied by a pipe 17 having a throttle valve at 19 to allow air to pass to the pipe 15 and maintains an air " piston " between the gas outlet B and the pipe 13 to prevent deposits, of tar and other impurities, and a branch 32 leads to a controller which is connected by pipes 44, 49 to the pipe 15 on each side of the throttle valve 46. The controller, Fig. 2, has chambers 23, 24 separated by a partition having a valve 26 operated by an armature 42 influenced by a coil 35 having connections 36, 38 with a lever D controlling the reversal valve of the furnace C. The chambers 23, 24 are connected by pipes 44, 32 respectively with the pipes 15, 17, and an upper chamber 48 closed by a relief valve 47 is connected by a pipe 49 with the pipe 15. On reversal of the furnace valve the circuit is closed, opening the valve 26 and allowing air under pressure to raise the diaphragm 5, which closes the steam-valve 8 and cuts off the blast supply to the producer until reversal is completed and the circuit broken. If undue pressure occurs in the gas-outlet pipe B, this is communicated by pipes 16, 15 to the chamber 48, the valve 47 opening to allow this pressure to cause the diaphragm 5 to be raised, cutting off the blast supply in the manner above described until the pressure in the gas-outlet pipe becomes normal.
Patent GB-1102092-A (GB)
Title: Improvements relating to machines of the cross-flow type for inducing flow of fluid
Inventor: VOGLER DIETER
IPC: F04D17/04
Filed: 1964-02-05
Abstract: 1,102,092. Transverse-flow blowers and pumps. FIRTH CLEVELAND Ltd. Feb. 3, 1965 [Feb. 5, 1964], No. 8063/67. Divided out of 1,102,091. Heading F1C. The subject-matter of this Specification is substantially the same as that described in Specification 1,102,091 with reference to Figs. 5 and 6, but the claims are concerned with a transverse-flow machine for inducing a flow of liquid or gaseous fluid and comprising a guide body subtending less than 40‹ at the rotor axis and adjacent which a main vortex forms, and a guide wall extending around the rotor on the side thereof opposite the guide body and defining therewith an outlet from the rotor, the guide wall (as seen going from the outlet) reaching the nearest approach which it makes to the rotor intermediate in its length at the outlet side of a diameter passing substantially through the middle of the guide body (or passing through the line of nearest approach of the guide body to the rotor), the guide wall continuing on the inlet side beyond the region of nearest approach to an abrupt termination and forming between the region and the termination a pocket into which extends a second vortex.
Patent GB-415347-A (GB)
Title: A chair with a reversible seat
IPC: A47C1/04
Filed: 1934-03-14
Abstract: 415,347. Reversible seats. CLARK, D'A. M., 1, Quality Court, Chancery Lane, London.-(Naamlooze Vennootschap Handelmaatschappij voorheen Hollander & Kohn; 81, Kunstraat, The Hague.) March 14, 1934, No. 8064. [Class 52 (ii).] In a chair with a reversible seat, the seat 3 rests normally on the edges of opposite sides of the frame 2, and a link mechanism at each side connecting the seat to the frame comprises a two armed lever 20 pivoted to a point 21 on the frame, the upper and longer arm of which is pivotally and slidably connected to the seat frame 10, and a single armed lever 24 pivoted at the point 21 to the fixed frame and at the point 25 to the seat frame. Links 17, 18 are pivoted to the lower and shorter arm of the lever 20, and to a point 26 intermediate the ends of the lever 24 respectively, both links being pivoted to a common point on a reversing handle 14 pivoted at 12 to the fixed frame. A forward stroke of the handle 14 reverses the seat into the position shown in Fig. 3.
Patent GB-1372633-A (GB)
Title: System for identifying distant objects carrying coded information
IPC: B65G47/49
Filed: 1972-02-22
Abstract: 1372633 Identifying remote objects THOMSON-CSF 22 Feb 1972 [23 Feb 1971] 8181/72 Heading G4H In a system for identifying remote objects (e.g. cars travelling along a two-lane road) bearing coded strips 1 of reflecting and absorbing material 2, 3, two strips arranged in a line are successively scanned along their length by a laser 7 and rotating mirror drum 9 and the reflected data is collected by a sensor 10-12 for transmission to a decoder 14 by way of a processor 13 in which noise resulting from parasitic reflections is removed. The incoming signal is applied to two filters 11, Fig. 12, in which the signal transmission band is respectively passed and cut out, the two filtered signals are fed to photodetectors 12 and the resulting signals representing respectively signal+residue noise and noise+attenuated signal, are then fed to the processor 13a, 13b. In 13a, the signals are fed to respective balancers 42a, 42b, Fig. 6 (not shown), in which the noise amplitude is made the same, and then to a subtractor (43) in which the noise is removed. After passage through a reshaper (45) the subtracted signal (46) is duplicated p times and fed to respective processors 50-1 ... 50-p, Fig. 8 (not shown). Each processor (50) contains a peak clipper (51) having one of p different threshold values; from here the signal is fed to a digitizer (52), and thence to a digital filter in which pulses whose length does not equal that of the signal pulses (assumed constant for this embodiment) to within a preselected tolerance are eliminated by means of a gating circuit 53, Fig. 10 (not shown). The by now. noiseless pulses (in respect of both their amplitude and their width) are restored by a monostable circuit (67); finally the pulses from all the processors 50 are recombined in an OR circuit (54). The rotating drum incorporates tracks 21, 22, Fig. 4 (not shown) which give rise to sync. pulses 71, and channel-directing pulses 70 which sequentially enable gates 72 in decoder circuits 14a, 14b. Each strip gives rise to a code of the form START : DATA : END; in the appropriate decoder circuit 14, the START and END portions enable respective gates 75, 77 which respectively pass the data to a store 76 and control a decoder 78 into which the data is shifted from the store.
Patent GB-609575-A (GB)
Title: Improvements in or relating to the control of self-feeding water boilers
IPC: A47J31/56
Filed: 1946-03-16
Abstract: 609,575. Manuallyactuated interconnected valves. JACKSON BOILERS, Ltd.,. and MUSTILL, C. W. March 16, 1946, No. 8250. [Class 135] [Also in Group XIII] In gas or steam heated self-feeding water boilers having a draw-off tap 2 situated remotely from the gas or steam control valve 4, the draw-off tap and control valve are interconnected by a system which operates them in conjunction, comprising a driving rod 11 fitting into a bush 4 in tap 2 and a bush 9 on the spindle of the control handle 8 which bears on the boss 7. The control handle comprises a bracket. 13 carrying an inverted fork 14 pivoted at 15 and engaging the cranked end 16 of the gas valve rod 17.
Patent GB-410950-A (GB)
Title: Improvements in and relating to garages for automobiles and the like
IPC: E04H6/20
Filed: 1933-03-20
Abstract: 410,950. Handling vehicles in garages; lifts; platform hoists ; rope railways. ROME, J., and RUBINSTEIN, K., 23<bis>, Boulevard Brune, Paris. March 20, 1933, No. 8383. Convention date, March 21, 1932. [Classes 78 (iii), 78 (iv), and 104 (ii).] In a multifloor garage, in which the cars are moved by conveying plates on closedloop paths, lifts 11 are disposed at each end of each loop with approaches provided with receiving plates for the cars. The receiving and conveying plates are slotted in order that they may pass the shaped plungers 19, 20, Fig. 9, working in the lift wells which support the cars, while the plates are slid under or withdrawn from beneath the cars. The conveying plates 1 are double-slotted or H-shaped so that they may serve lifts at either end of the building. These plates are moved between the lift spaces 11 and the loop conveyers 23 on each floor by conveyers 26 on carriages 25 which are moved transversely at each end by conveyers 24 disposed at right-angles to the main loops. In order that the main plunger 19, 20, need be used only between the several floors, an auxiliary plunger 28, 28<1>, Fig. 24, may be disposed in each main plunger, to raise and lower the cars to enable the slotted plates 1 to be moved under and from beneath the cars. As shown in Fig. 28, the car 2 may be transferred from the conveying plate 1 to a receiving plate in the cage by means of a carrier 30 which moves up an inclined guide 32 in the cage to engage the axles of the car and raise the car while the plate 1 is withdrawn. Carriers 30 are stationed alternately in the lift well, and on the floors. All the parts may be automatically operated by means of electric switching systems. The Specification as open to inspection under Sect. 91 comprises also a conveyer system of trucks Fig. 31 (Cancelled) in which the traversers 36 are provided with rails 39 which can be aligned with the rails of the main loops alternately ; also a means for engaging and disengaging the platforms with and from the conveyer chains ; and a handoperated hydraulic-pump system for raising and lowering the vehicles to allow transfer platforms to be inserted under and withdrawn from beneath the vehicles. This subjectmatter does not appear in the Specification as accepted.
Patent GB-863419-A (GB)
Title: 5a(11a)-dehydrotetracyclines and the 4-epimers thereof
Filed: 1958-03-17
Abstract: The invention relates to 5a(11a)-dehydrotetracyclines having the formula:  <FORM:0863419/IV (b)/1> wherein Z is hydrogen, bromine or chlorine, namely 7-chloro-5a(11a)-dehydrotetracycline, 7-bromo-5a(11a)-dehydrotetracycline, 5a(11a)-de-hydrotetracycline and the 4-epimers thereof.  The 5a(11a)-dehydrotetracyclines are prepared by aerobically fermenting a chloride-ion containing aqueous nutrient medium containing at least 50 p.p.m. chloride ion and an assimiliable source of carbon, nitrogen and mineral substituents with a strain of S. aureofaciens to produce 7-chloro-5a(11a) dehydrotetracycline, or such a medium containing less than 50 p.p.m. chloride ion and less than 50 p.p.m. of bromide ion to produce 5a (11a)-dehydrotetracycline, or such a medium containing less than 50 p.p.m. chloride ion and at least 50 p.p.m. bromide ion to produce 7-bromo-5a(11a) dehydrotetracycline.  The media are conventional for the production of tetracyclines except that increased yields are obtained in the presence of 0,1 to 2,0 p.p.m. of riboflavin. The dehydrotetracyclines may be isolated by contacting a clarified broth of pH 1 to 2 with an alcohol such as n-butanol and then passing through a column of diatomaceous earth when it is developed with 80% n-butanol and 20% chloroform.  The eluate is concentrated and freeze dried.  The antibiotic is separated from residual tetracycline and chlortetracycline by crystallisation from methanol solution after acidification, filtration and neutralisation.  The 4-epimers of the 5a(11a) dehydrotetracyclines are prepared by adjusting a concentrated solution (e.g. in methanol, 2 ethoxyethanol or tetrahydrofuran) within the range of 3,0 to 5,0 and allowing to stand.  Salts are prepared by treating the 5a(11a) dehydrotetracycline wit h(a) mineral acids at pH below 4 or (b) a base such as sodium hydroxide, potassium hyroxide or calcium hydroxide at pH above 7,0 Specifications 690,381, 775,115, 863,418 and 863,420 are referred to.
Patent GB-239131-A (GB)
Title: Improvements in or relating to chairs and the like
IPC: A47C4/30
Filed: 1925-03-30
Abstract: 239,131. Hokanson, A. E. March 30, 1925. Seating-surfaces, attaching.-The flexible seating 23 of a folding chair is detachably secured to the chair frame by making the seating sufficiently long to be passed over and around the bars 12, 18 and providing at each end a rigid transverse rod 25 to be engaged by retaining means comprising a hole 26 and a hook 27. The top hook 27 may be on the member 11, and the bottom hook on the other side member 16.
Patent GB-417255-A (GB)
Title: Improvements in or relating to drag scrapers
IPC: E02F3/60
Filed: 1933-03-21
Abstract: 417,255. Drag scrapers. TAYLOR, H. J., Trolorne, Uxbridge Road, Hatch End, Middlesex. March 21, 1933, No. 8510. [Class 78 (iv).] A drag scraper for gathering coal from a storage heap comprises a box-like frame 1 having a scraper blade 12 projecting below the bottom of the frame and a rudder or rudders 2, 8 which are freely pivoted as at 3, 9, at the end or ends of the frame and extend below the frame so as to penetrate the material and prevent lateral motion of the frame. The haulage cable is attached to the free ends of the rudders. As shown the blade 12 is pivoted at 11 and may be swung over from the stop 13 to the stop 13a for operating the scraper in the reverse direction. Plates 14 prevent overflow of the coal. The Provisional Specification describes also a modification in which, to permit working in either direction, the frame is provided with a hinged scraper blade at each end, the blade at the leading end being raised and secured in an inoperative position.