baber/WOPTO huggingface dataset:
Patent GB-1304937-A (GB)
IPC: H01J49/30
Filed: 1970-04-08
Abstract: 1304937 Mass spectrometers BELL & HOWELL CO 8 April 1970 [28 April 1969] 16570/70 Heading HID A mass spectrometer for a leak detector system comprises a sector analyser magnet 16, Fig. 1, which is adapted to deflect ions through an angle between 180 and 360 degrees. In Fig. 1, the deflection angle is 270 degrees and the ions are brought to a focus at 40, half way round the sector, where an intermediate slit 34 is disposed to intercept ions of the wrong charge/mass ratio. In order to provide proper focusing the distances between the object slit 25 and the image slit 44 and the respective input and output faces of the magnet should be 1À998 times the radius of curvature of the path within the magnet, and the faces of the magnet should be inclined 26‹ 35' to the normals to the ion paths. The output system includes a retarding lens 48 adapted to reject unwanted ions having the same momentum as the wanted ions and may include an electron multiplier. The ion source may comprise a gas inlet 26, a thermionic cathode (not shown) for producing electrons to ionize the gas, a focusing electrode 22 and the slit electrode 24. Fig. 1 also shows a pump connection 18, and includes an auxiliary electrode 37 for collecting an auxiliary tracer gas such as hydrogen, the primary tracer gas being helium. In Fig. 1, the ion paths cross at 108, and this may be avoided by providing electrostatic deflection plates for deflecting the output beam away from this zone (Fig. 5, not shown). In modifications (Figs. 4A and 4B, not shown), the analyser magnet deflects the ions through 240 or 300 degrees, the input and output slits then being disposed farther from the magnet in the former case and nearer the magnet in the latter case.
Patent GB-893250-A (GB)
Title: Improvements in automatic control systems
Inventor: PEGRUM JAMES WARING
IPC: F22G5/00
Filed: 1959-05-14
Abstract: 893,250. Automatic control systems for steam generators. BABCOCK & WILCOX Ltd. May 11, 1960 [May 14, 1959], No. 16571/59. Drawings to Specification. Class 38 (4). [Also in Group XXXVIII] In an automatic control system for starting up and running a steam generator under the supervision of a digital computer, as disclosed in Specification 893,251, provision is made for the smooth change-over from starting to running conditions of both feed water supply and steam temperature. Liquid level.-The feed water maybe supplied through either a topping up valve (for starting) or a main valve (for running), and the output signal from a single 3-term water level controller is transferred from the actuator of the one valve to the actuator of the other by two ganged variable resistors that reduce to the signal to the one as they increase the signal to the other when driven from one end of their range to the other. The drive may be manual or automatic by a motor switched on by the digital computer. The control signal to the valve actuator is stated to depend upon water level in the drum, mass flow rate of water to the drum and mass flow rate of steam from the drum. Temperature.-Steam temperature may be controlled for starting by a damper regulating the supply of excess air to the furnace chamber, or for running by a valve regulating the supply of liquid to a spray attemperator. Changeover of the signal from the undisclosed temperature controller to the actuating units of the damper and the attemperator is effected as above.
Patent GB-309339-A (GB)
Title: Improvements in the treatment of metal articles for the prevention of tarnish and rust
IPC: B05D7/16
Filed: 1928-06-07
Abstract: 309,339. Scriven, H. A., and Guise,. B. F. G. June 7, 1928. Paints and coating-compositions. - Metal articles after electroplating are coated with a solution containing about 3 oz. of pure soap and 1“ oz. of celluloid to a gallon of amyl acetate. The solution is used at about 200‹ F. The articles may then be polished in a barrel conta.ining sawdust or the like or may be polished with a mixture of fat and celluloid solution applied with a swansdown mop. The articles are finally stoved for 1-4 hours at about 90‹ F.
Patent GB-554241-A (GB)
Title: Marine drive
IPC: B63H23/00
Filed: 1941-12-24
Abstract: 554,241. Reversible marine drives; clutches. WOOD, G. A. Dec. 24, 1941, No. 16635. [Class 114] [Also in Group XXIV] , In a reversible marine drive clutches C selectively connect and disconnect to and from a propeller shaft 10 any of a series of gears 21 driven by power units B which are axially aligned with the gears, the clutches are mounted on the shaft, and each of the power-units continuously drives means for engaging the corresponding gear at angularly spaced points. Each unit B comprises parallel Diesel engines each of which has opposed pistons with concave ends the crankshafts of which carry pinions 20 in mesh with a herring-bone gear 21 the hub 26 of which is freely mounted on the shaft 10 and carries clutch'teeth 33 and a pulley 34. The teeth 33 co-operate with teeth 41 on a sleeve 40 rotated with the shaft 10 and slidable along it by means of a clutch lever 50. The pulley 34 is engaged by friction blocks 37 mounted on radially movable hydraulic pistons 39. The latter are operated by a pressure liquid supplied by a pump 64 under the control of valves 60, 61, 62. When the pulley 34 rotates at the same speed as the enclosure 67 the lever 50 is released by a solenoid 84, the teeth 33, 41 are engaged, and the shaft 10 positively engaged by the gear 21. To indicate which of the engines are functioning correctly, each engine includes a thermostatically controlled element 70 with a heat responsive arm 73 which engages either of a pair of contacts 71, 72 connected to a green or yellow light 76, and to a red light 80, respectively. If an engine is cold a solenoid 81 in parallel with the red light 80 is enegised and this energizes the solenoid 84 which releases the lever 50 to disengage the corresponding clutch C. In a modification, the engines are at right angles to the propeller shaft.
Patent GB-330394-A (GB)
Title: Improvements in and relating to vulcanised fibre
IPC: D21H17/14
Filed: 1929-05-30
Abstract: 330,394. Jacobs, A. F. May 30, 1929. Parchment paper.-Vulcanized fibre sheets are impregnated with oil by treating cotton cellulose sheets with a solution of zinc chloride, passing through heated rollers, washing out the zinc chloride, and while the sheets are still wet immersing in an aqueous solution or emulsion of soluble oil such as " Hydraulic oil."
Patent GB-1498649-A (GB)
Title: Process for manufacturing manganese dioxide
IPC: H01M6/06
Filed: 1975-04-22
Abstract: 1498649 Manganese dioxide RHEINISCHWESTFALISCHES ELEKTRIZITATSWERK AG 22 April 1975 [23 April 1974] 16694/75 Heading C1A Manganese dioxide is prepared by a disproportionation reaction in which trivalent manganese oxide is treated simultaneously with ozone and one or more peroxy halogen acids to convert it to manganese dioxide and a soluble bivalent manganese salt.
Patent GB-1497473-A (GB)
Title: Soil working machines
IPC: A01B49/06
Filed: 1975-01-13
Abstract: 1497473 Rotary harrows C VAN DER LELY NV 13 Jan 1975 [18 Jan 1974] 16697/77 Divided out of 1497471 Heading A1B The subject-matter of this Specification is also disclosed in Parent Specification and Specification 1497472 and 1497474, but the present claims are concerned with the disposition of the ground wheels 30 and of the material hopper 39.
Patent GB-505727-A (GB)
Title: Improvements in and relating to rotary tools and sockets therefor
IPC: B23B31/00
Filed: 1938-06-07
Abstract: 505,727. Sockets. RIECKE, H. June 7, 1938, No. 16801. Convention date, June 7, 1937. [Class 83 (iii)] Rotary tools such as drills, reamers, &c. having a shank of non-circular cross-section for driving engagement in a socket of similar section, have the shank and socket of substantially triangular section formed by a closed cycloidal curve, as shown in Fig. 3. The curve may be machined and finished by a planet gear or other mechanism as described in Specification 453,119, and the shank may be tapered as shown in Fig. 2 or parallel, in which case other means are provided for taking the axial thrust of the tool and preventing disengagement. A transverse slot g in the socket provides for ejecting the tool by means of a drift &c.
Patent GB-422699-A (GB)
Title: Mechanism for removing dust and the like from tobacco and other materials
IPC: A24C1/02
Filed: 1933-06-13
Abstract: 422,699. Confining &c. dust &c. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(International Cigar Machinery Co. ; 5520, 2nd Avenue, Brooklyn, New York, U.S.A.) June 13, 1933, No. 16848. [Class 8 (ii)] [See also Groups VI and II] Rakes 17 mounted on a rotating shaft 18 agitate tobacco T or other material contained in a hopper 16, which is provided with perforated screens 16a, 16<b>, 16<c> and the dust and small particles are removed through the screens by suction transmitted through a pipe 33. An oscillatable transfer drum 15 is placed beneath the hopper 16 and contains a pan 29 which is reciprocated to receive a charge of tobacco or other material and transfer it to a measuring chamber. The pan 29 is carried by a forked lever 27 mounted on a shaft 28 and is actuated by levers extending through a slot 26 in the drum 15. To remove dust &c., from the pan 29 it is provided with a perforated false bottom 29<a> and a sloping portion 29d which periodically registers with a duct 34 in a spider 14, and as the drum 15 turns communication between the duct 34 and a tube 34, connected to the suction pipe 33, is cut off before the pan carries the tobacco or other material into the discharging position. Specification 395,921, [Group VI], is referred to.
Patent GB-219793-A (GB)
Title: Improvements in sectional and detachable chair legs and the like
IPC: A47B91/00
Filed: 1923-06-29
Abstract: 219,793. Neighbour, R. C., and Neighbour, F. C. June 29, 1923. Table frames.-A detachable leg of a table &c. is provided with flanged plates 2, the flanges 3 of which slide within channels 6 formed by the bent-over edges of a metal plate 5 secured to the underside of the table &c. 7. The legs may be made in sections, detachably held together by dowels 9 and a pivoted hook 10.
Patent GB-1009286-A (GB)
Title: Electromagnetically actuated friction clutch or brake
IPC: F16D27/112
Filed: 1964-04-24
Abstract: 1,009,286. Friction clutches. A. BELLING, and E. BELLING, [trading as MASCHINENFABRIK HANS LENZE]. April 24, 1964 [April 25, 1963], No. 17057/64. Headings F2C, F2E and F2U. An electromagnetically engaged, spring-released clutch, or brake , comprises axially fixed driving and driven members R, 3, between which is an axially movable armature 2, connected to the driven flange 3 by a sinusoidal release spring ring 1, pre-loaded and secured by rivets at the apices of the sine curve alternately to the armature 2 and flange 3. The spring ring may consist of a number of segments and a number of these annular springs may be stacked one on top of the other and secured to one another and alternately to the flange 3 and armature 2. The armature 2 is clutched to the rotor R on energization of a stationary magnetic member M.
Patent GB-922588-A (GB)
Title: Improvements in or relating to the preparation of organic carbamate compounds
IPC: C07D295/205
Filed: 1960-05-13
Abstract: Carbamates of the formula <FORM:0922588/IV(a)/1> (wherein R1 is an alkyl radical of less than 11 carbon atoms, or a cycloalkyl, aryl or aralkyl radical, or a saturated, nitrogencontaining, heterocyclic radical attached through a nitrogen atom, R2 is a hydrogen atom, an alkyl radical of less than 11 carbon atoms, a cycloalkyl, aryl or aralkyl radical, or a saturated, nitrogen-containing, heterocyclic radical attached through a nitrogen atom, or R1, R2 and the carbon atom to which they are attached together form a fluorenyl group, R3 is a hydrogen atom or a hydroxyl group, R4 is a hydrogen atom or an alkyl radical containing less than 11 carbon atoms, and R6 and R7 are hydrogen atoms or organic radicals, or together with the adjacent nitrogen atom form a ring structure) are prepared by reacting an alcohol or glycol of the formula <FORM:0922588/IV(a)/2> with an alkyl haloformate X.CO.O.R5 (wherein X is a fluorine, chlorine or bromine atom and R5 is an alkyl radical of at most 4 carbon atoms) to give a carbonate of the formula <FORM:0922588/IV(a)/3> and then reacting this with ammonia or the appropriate amine NHR6R7.  Suitable amines include primary and secondary alkylamines and alkylenediamines and saturated and unsaturated, mono- and bi-cyclic heterocyclic amines, while suitable alcohols and glycols include alkanols and aralkanols which may contain heterocyclic groups such as piperidino, piperazino and morpholino, and alkane diols and aralkane diols.  Examples describe the preparation of 2-hydroxy-2-phenylethyl carbamate; 2,2- diphenyl- 2-hydroxyethylN-dimethyl carbamate; 2-phenyl-2-hydroxybutyl carbamate and 9-(9-hydroxyfluorenyl)-methyl carbamate.  Specification 689,705 is referred to.  Reference has been directed by the Comptroller to Specification 841,626.
Patent GB-695287-A (GB)
Title: Improved apparatus for cleaning and likewise treating drums, barrels and the like
Inventor: ALBON GEORGE ROBERT
IPC: B08B9/08
Filed: 1950-07-07
Abstract: 695,287. Barrel cleansing machines. ALBON & SONS, Ltd., R. J. Oct. 5, 1951 [July 7, 1950], No. 17065/50. Class 21 Apparatus for cleaning exteriors of drums or barrels comprises a frame with upstanding guides supporting slidably a vertically adjustable mounting carrying bushes to engage the ends and periphery of the drum or barrel, which is supported on rotors carried by a pair of spaced horizontal shafts of which one or both is rotated to axially rotate the drum or barrel; the brushes being shrouded by a hood also carried by the mounting, which has runners tracking up and down the frame guides, and is raised and lowered by power actuated motor means. Figs. 1, 2 show a barrel cleansing machine wherein a tank 13 containing a steam-heated detergent liquid is traversed by motor driven shafts 15 in bearings 16 which carry rotors 26 (e.g. cylindrical wire brushes or grooved cylinders) adapted to rotate a barrel resting thereon. A rectangular arch 4 surmounting the tank carries a pressure fluid operated cylinder 11 having a ram 12 supporting a bell-shaped hood 5 for vertical motion guided by rollers 8 engaging rails 10 fixed to the vertical members of the arch. A set of interchangeable wire brushes 6 is horizontally mounted under the hood, and a pair of vertical brushes 7 are mounted on cranked arms 7b pivoted at 28, and are separable by a spring loaded hand lever 36 operating through linkages 30, 31. With the hood raised by the ram and the vertical brushes separated, a barrel to be cleansed is manually rolled on to a tilting cradle comprising oppositely disposed triangular end plates 43 connected by horizontal rods at their corners, and pivotable about a central shaft 42 carried by parallel rectangular frames 41 dependent from the hood, which is then lowered by the ram, thus depositing the barrel on the rotor shafts and engaging the brush 6 with its periphery. Brushes 7 are then closed together to engage the barrel ends, and scrubbing with the detergent liquid proceeds. After cleansing, brushes 7 are disengaged, the hood is raised to its upper position against rubber buffers 40, the dependent cradle lifts the barrel off the rotor shafts and may be tilted manually about shaft 42 to discharge it along guide rails 45 extending into and through a rinsing chamber comprising panels fixed to a rectangular framework 1, within which detergent liquid from a tank 3 is sprayed by a recirculating pump through jets of a rectangularly arranged spray tube 47 through which the barrel passes along the guide rails.
Patent GB-560352-A (GB)
Title: Improvements relating to electric resistor furnaces for the heating and melting of metals
IPC: F27D11/04
Filed: 1942-12-02
Abstract: 560,352. Electric melting furnaces. BIRMINGHAM ALUMINIUM CASTING (1903), CO., Ltd., and PRITCHARD, P. Dec. 2, 1942, No. 17131. [Class 39 (iii)] [Also in Groups XII and XXII] Light metals to be heated and melted are placed in a closed steel crucible 20 immersed in a fused salt 14 which is heated by alternating current supplied to three electrodes, each of which consists of three carbons inserted in bores 17 in an insulating block 18. A charging opening for the crucible is closed by a hinged door 25, and the crucible is supported by a flange 32 on the wall of the furnace chamber, and retained by fastenings 34 to keep the crucible submerged. The molten metal is discharged by air pressure, through a delivery pipe 39 having a conical bung 41 resting in a hole in the cover, into a spout 40 which is slightly inclined. The pipe passes through an extension 42 of the door 25 so that the door cannot be opened while the pipe is in position. The small angle of the spout 40 arrests any oxide skin which may form on the metal when in contact with the air.
Patent GB-727811-A (GB)
Title: Steroids
IPC: C12P33/00
Filed: 1952-07-08
Abstract: The invention comprises 11a ,17a ,21 - trihydroxy - 4 - pregnene - 3.20 - dione and its preparation by bringing 17a ,21-dihydroxy-4-pregnene-3.20-dione or a 21-carboxylic acid ester thereof into contact with the enzymes produced by a growing fungus of the genus Rhizopus, e.g. Rhizopus arrhizus or Rhizopus nigricans, under aerobic conditions.
Patent GB-421133-A (GB)
Title: Self cleaning rotary harrow
IPC: A01B33/02
Filed: 1933-06-16
Abstract: 421,133. Implements and machines for working land. McBAIN, W. J., Exton, Inchture, Perthshire. June 16, 1933, No. 17171. [Class 6 (i)] A self - cleaning rotary harrow comprises spiked discs rotatable about a horizontal axis and driven through reduction gearing from a spiked disc or discs rotated by engagement with the ground as the harrow moves forward. The harrowing discs 2 may be strung on a polygonal shaft 1 driven by worm and bevel gearing 4, 5, 7, 8 from a parallel shaft 10 provided with spiked driving discs 9. Scraper bars or tines 13 may be carried by a cross-bar 12. The shafts 1, 10 may both be adjustable vertically. According to the Provisional Specification the spoked discs may be driven in the opposite direction to that of the driving discs, or the reduction gearing may be driven from a travelling wheel or the like.
Patent GB-194610-A (GB)
Title: Improvements in drying plants
IPC: F26B17/12
Filed: 1922-06-21
Abstract: 194,610. Nordstrom, O. June 21, 1922. Gravity, materials descending by; air, controlling circulation of; temperature, regulating. - Relates to drying towers in which the material descends through an annular chamber having perforated walls 1, 2 and is traversed by hot drying gases, and comprises means for controlling automatically the temperature of the gases entering the drying chamber. A part of the gases passing through the outlet chamber 11 of the tower is led to the inlet of the fan 8 or other circulating means, so as to mix with and cool other hot drying gases from the conduit 9. The quantity of gases thus mixed with the fresh drying gases is controlled by a throttle 19 connected with a thermostat in a by-pass 18 leading from the delivery to the inlet side of the fan.
Patent GB-496594-A (GB)
Title: Improvements relating to automatic weighing machines
IPC: G01G13/00
Filed: 1937-06-21
Abstract: 496,594. Shock-absorbers. HENNEFER MASCHINENFABRIK C. REUTHER & REISERT. June 21, 1937, No. 17243. Convention date, July 31, 1936. [Class 108 (iii)] [Also in Group XVIII] A brake cylinder used in the shock-absorbing mechanism of an automatic weighing machine and producing a braking effect during the down stroke of the piston is provided with two tapered rods g<1> which increase or diminish the space for the pas. sage of oil through holes in the piston as this moves up or down. A valve g<111> closes two further holes when the piston moves down.
Patent GB-1081335-A (GB)
Title: Process for preparing vulcanizates
IPC: C08K9/08
Filed: 1965-04-23
Abstract: Vulcanized products are prepared by mixing ethylene/alpha-olefin copolymers with white fillers using diallyl maleate as dispersion promoter, then milling with heating, cooling, mixing with organic peroxide and sulphur and vulcanizing. The specified fillers are carbonates and sulphates of alkaline earth metals, silica, and silicates, e.g. kaolin, clay, talc, calcium carbonate or barium sulphate.  Optionally there may be present compounds correcting acidity, e.g. MgO, ZnO, CaO or PbO.
Patent GB-453720-A (GB)
Title: Improvements in and relating to sound boards for pianofortes
IPC: G10C3/06
Filed: 1935-06-15
Abstract: 453,720. Pianofortes. VOIGT, A. E., 9, K÷nigsberger Strasse, Berlin, and FLATOW, M. W., 14, Moscow Road, Bayswater, London. June 15, 1935, No. 17326. [Class 88 (ii)] In a pianoforte, particularly a miniature grand, the soundboard comprises two parts 2, 4 secured together at their free edges 5 to form a composite board folded back on itself. The overhang is supported by adjustable spring plates 10. The arrangement permits the bridges to be placed nearer the edge so that longer strings may be used.
Patent GB-179090-A (GB)
Title: Improvements in or relating to machines for cutting or crushing coke and other substances
IPC: B02C4/08
Filed: 1921-06-24
Abstract: 179,090. Sims, A. G. June 24, 1921. Shaft couplings.-In machines for cutting and crushing coke and the like, the shafts carrying the rollers are mounted so that they can be withdrawn. A coupling 5, having one end completely encircling an end of a permanent shaft c and secured thereto, is formed at the other end as a bed for the end of the removable shaft, into which tongues 6 fit. A cap 7 is secured over this end by bolts passing through holes 8.
Patent GB-430608-A (GB)
Title: Process for the production of chloral and bromal derivatives
IPC: C07C203/00
Filed: 1934-06-12
Abstract: Chloral and bromal nitrates are prepared by treating chloral or bromal with the equivalent amount of nitric acid in a dilute state at a temperature not exceeding 30 DEG  C.  The acid preferably contains 20--30 per cent by weight, whilst the temperature preferably lies between 10 and 25 DEG  C.  The products possess therapeutic properties.  An example is given of the preparation of chloral nitrate, C Cl3.CH (OH) (ONO2).  The Specification as open to inspection under Sect. 91 defines the temperature as not exceeding 20 DEG  C., preferably between +10 and -25 DEG  C.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1302754-A (GB)
IPC: H03K4/62
Filed: 1970-04-13
Abstract: 1302754 Transistor switches; line timebase circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 13 April 1970 [16 April 1969] 17422/70 Heading H3T A transistor switch including an impedance in series with the base drive to reduce the change of base current during switchoff has a slow-toconduct diode connected in reverse parallel to the base emitter diode. The circuit shown is a' line time-base and, as explained in Specification 1,234,607, an inductor 10 is connected in series with the base drive to prevent a large reverse peak current flow during switch-off. The diode 12 is slow-to-conduct so that it remains non- conducting while the base charge is being removed but thereafter conducts to prevent prolonged reverse conduction through the baseemitter diode due to breakdown. A diode 13 prevents the switch-on drive being short circuited through diode 12 and, together with an optional capacitor shown dotted, should have a slow recovery to enable the energy in the coil 10 to be dissipated. A resistor 14 in parallel with diodes 13 or 12 provides a path for collectorbase leakage. The function of the efficiency diode 11 may be effected by the collector-base diode in series with diode 12.