baber/WOPTO huggingface dataset:
Patent GB-1526976-A (GB)
Title: Air-sampling device
IPC: G01N1/18
Filed: 1975-11-20
Abstract: 1526976 Sampling gases EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM) 20 Nov 1975 [27 Nov 1974] 47781/75 Heading G1B A device for automatically taking samples of an atmosphere comprises a distributer rotatably mounted on a hollow spindle 5, a distributer housing 4 having a plurality of apertures connectable to respective sample-collecting means, (not shown), the distributer having bore 6, 10 and being mounted such that during rotation one end of bore 6 passes at least one of the apertures of the housing, spindle 5 being connected to the other end of bore 6 and to the outlet side of an air pump 1 capable of drawing in air from the surrounding atmosphere, and means such as shaft 8 and mechanical timer 9 for rotating the distributer. In use, plastics bags for collecting the samples are connected to necks 13 of the housing apertures. In the embodiment of Fig. 1 (not shown), shaft 8 is vertical and bores 6 10 are aligned.
Patent GB-1167145-A (GB)
Title: Improvements relating to Tobacco Cutting Machines.
IPC: A24B7/14
Filed: 1965-11-12
Abstract: 1,167,145. Tobacco cutting machines. MOLINS MACHINE CO. Ltd. and D. W. MOLINS. 10 Nov., 1966 [12 Nov., 1965], No. 48136/65. Heading A4C. The walls 2 of the mouthpiece 1 of a tobacco cutting machine comprising also conveyors 6, 7 and knife 10, are air-pervious and are surrounded by a plenum chamber 3 to which air is supplied under pressure through pipes 4, 5 and passes through walls 2 to reduce the friction on the tobacco passing through the mouthpiece.
Patent GB-1131836-A (GB)
Title: An improvement in or relating to clothes pegs
IPC: D06F55/00
Filed: 1966-10-28
Abstract: 1,131,836. Clips. B. BRIGHT. 22 Aug., 1967 [28 Oct., 1966], No. 48538/66. Heading E2B. - A clothes peg made of synthetic plastics material comprises a thin web 8 with a narrow slit 12 extending into an aperture 14 for a clothes line, the peg being resiliently deformed as shown to allow the line to enter the aperture. The peg has a continuous peripheral bead 10 extending on one or both sides of the peg. The aperture and slit are tapered in the direction of the thickness of the peg. The sides of the slit may extend into the aperture to cause a constriction.
Patent GB-1179753-A (GB)
Title: Process for Testing Printed Circuit Boards
IPC: G01N27/26
Filed: 1967-10-25
Abstract: 1,179,753. Electrolytic recording sheets. PHOTOCIRCUITS CORP. 25 Oct., 1967 [27 Oct., 1966], No. 48553/67. Heading D2B. [Also in Division G1] Multilayer printed circuit boards are tested before components are connected thereon for continuity and for short circuits of particular circuit paths through the board by placing the circuit board 2 in contact with electrolyte impregnated or electrosensitive paper 3 between conducting plates 1 and 4; and applying voltage between the plates. Colour indicators are included when necessary in the papers. When electrolyte impregnated paper is used, it acts to remove some metal (a minute amount) from those terminals on the lower face of the board connected to the upper, to produce a colour change at corresponding points in the paper 3. When the paper is electrosensitive, the colour range is achieved without the removal of the terminal metal. The pattern of coloured points can be compared with a standard to assess the integrity of the circuit. Particular circuit paths through the board may be tested for continuity and short circuits by introducing a mask 52 between the top of the board and the plate 1, to select particular terminals on the top, the resulting pattern at the bottom being noted. A sheet 51 of a flexible conductor to penetrate the holes in the mask is provided. Numerous materials suitable for use as electrolytes and indicators in the sheet 3 are suggested. These will be determined to some extent by the metal of the printed board terminals. For example, when the metal terminals are of copper, the electrolyte may incorporate sulphate ion to produce a bright blue colour at activated areas in the paper; with nickel terminals and nitrate ions, a green coloration will result. With terminals covered by a leadtin solder mask, nitrate may be used, resulting in a black lead compound in the paper. Specific colour indicators may be incorporated in the electrolyte - e.g. sodium rhodizonate, which with deplated lead-tin forms a blue coloured complex. Electro-sensitive papers may be starch iodide, catechol &c or may incorporate sodium acetate, ferrous ammonium sulphate and the disodium salt of ethylenediaminetetra acetic acid.
Patent GB-979358-A (GB)
Title: An improved educational appliance
Inventor: COLLINSON CLIFFORD
IPC: G09B19/00
Filed: 1962-12-27
Abstract: 979, 358. Teaching weather observation. JAMES GALT & CO. Ltd. Dec. 23, 1963 [Dec. 27, 1962], No. 48606/62. Heading G5G. An educational device for use in teaching weather observation comprises (1) a chart 1 having areas thereon denoting factors contributing to weather conditions and including one area marked off to indicate times of the day (2) marked elements for placing on the chart to indicate conditions at a particular time and (3) a book withprinted areas corresponding to those on the chart whereby a written record maybe kept. The chart 1 has a printed strip 4 with a number of representations 5 of the sun below each of which is an indication of the hour of the day. A marker placed on one of the representations indicates the time at which observations are taken. The chart also has a representation 8 of a thermometer upon which a marker 9 can be placed, and form circular areas 10... 13 divided into sectors in which markers can be placed to indicate respectively rain conditions, wind conditions, storm or tempest conditions, and wind direction. Near the bottom of the chart are areas 7 illustrating possible cloud formations, and above these areas is a scale 14 of barometer pressure upon which a marker can be placed. A separate sheet with printed areas representing cloud formations corresponding to those at 7 is provided, and this sheet can be cut up so that at each observation, a cut-out piece can be placed over that one of the suns 5 corresponding to the time of observation to indicate the cloud formation at that time. In one form, the chart 1 comprises a printed metal sheet 1 attached to a fibre board backing 2, and the markers placed on the areas 7, 8, 10... 13 are small magnets. The separate sheets containing illustrations of cloud formation is formed of rubber sheeting containing magnetized metal particles. According to modifications, the markers may have pins fitting into holes in the charts, or the chart and markers may be of a synthetic material e.g. polyvinyl chloride, so that a marker is held in a set position by atmospheric pressure.
Patent GB-1262016-A (GB)
Title: Improvements relating to battery condition indicators
Inventor: MCKELLEN PATRICK EWART
IPC: G01R31/36
Filed: 1969-10-03
Abstract: 1,262,016. Transistor pulse and switching circuits. ELECTRIC POWER STORAGE Ltd. 24 Sept., 1970 [3 Oct., 1969], No. 48670/69. Heading H3T. [Also in Divisions G1 and G4] Two oppositely wound coils 33, 34, Fig. 1, of a relay are arranged in the collector circuit of a long-tailed pair 10, Fig. 1, so that if the inputs 11, 12 to the long-tailed pair differ, in either direction, by more than an amount pre-determined by the parameters of the long-tailed pair, a contact 34 will close to energize a warning lamp 38. The duration for which the lamp 38 is energized may be determined by connecting an oscillator, comprising a uni-junction transistor 70, Fig. 2, and an RC circuit 65, across it, and counting the number of cycles of oscillation by arranging that each cycle triggers a thyristor 72 to energize a relay 73, 74, and increment a counter 75 by unity.
Patent GB-1024958-A (GB)
Title: Bottom discharge bin latching assembly
IPC: B65D90/62
Filed: 1964-12-01
Abstract: 1,024,958. Hopper discharge. PENNSALT CHEMICALS CORPORATION. Dec. 1, 1964 [Dec. 9, 1963], No. 48794/64. Heading B8S. [Also in Division E2] A latch mechanism 17 for holding the pivotally mounted closure plate 12 of a bottom discharge hopper in the closed position is operable to release the plate 12 in two stages, first into a partially open position and then into the fully open position. The latch mechanism comprises a cam 21, which is adapted to engage a wear plate 16 on an extension 15 of the closure plate 12 and which is mounted on shafts 23 supported in angled slots 19 provided with offset recesses 20 in a pair of brackets 18. In operation, on rotating the cam 21 through 180 degrees in a counter-clockwise direction from the position shown by means of a tool 25, Fig. 4 (not shown), allowing the closure plate to move down to a partially open position, Fig. 2 (not shown), in which a projection 22 on the cam engages the outer end of the wear plate 16. Further rotation of the cam in the same direction causes the shafts 23 to move into the recess 20 allowing the closure plate to fall into the fully open position, after which the cam falls by gravity, after the removal of the tool 25, to the bottom of the slots 19. In closing the closure plate, the extension 15 pushes the cam into the recess 20. On further raising of the closure plate, the cam drops back into the bottom of the slots 19, Fig. 2 (not shown), in which the closure plate is held in the partially open position. The cam is then rotated by the tool 25 into engagement with a stop 26, Fig. 1. In a modification, Fig. 5 (not shown), the closure plate 27 and gasket 14 are adjustably mounted by means of a bolt 28 on a bar 29 which is pivotally mounted at 13 and which is engaged by the latch mechanism 17. Cams of different shapes, Figs. 6, 7 (not shown), are also described.
Patent GB-1073528-A (GB)
Title: New 6ª:19-cyclo-steroids
IPC: C07J63/00
Filed: 1963-12-02
Abstract: Novel 3 - oxo - 5#x - alkoxy - 6b :19 - cyclosteroids are prepared by converting a D 4-3-oxo-19-hydroxysteroid into its 19-mesylate, heating the latter in an aliphatic alcohol, in the presence of an alkali metal alcoholate and isolating the 3 - oxo - 5#x - alkoxy - 6b :19 - cyclosteroid from the resulting mixture, and, if desired, in the resulting compound, selectively reducing any oxo group (other than the 3-oxo group) to an hydroxyl group and, if desired, esterifying such an hydroxyl group.  D 4 - 3 - Oxo - 6b :19 - cyclosteroids which are obtained as by-products in the above process may also be prepared by treatment of the corresponding 3 - oxo - 5#x - alkoxy - 6b :19-cyclosteroids with an alkali metal hydroxide in aqueous alcohol.  The above reaction is reversed by the action of an alkali metal alkanolate in the corresponding alkanol.
Patent GB-1127869-A (GB)
Title: Improvements in or relating to closures for barrels
IPC: B65D39/08
Filed: 1966-11-01
Abstract: 1,127,869. Bunghole bushes. P. B. BUCKLEY. 13 Sept., 1967 [1 Nov., 1966], No. 48890/66. Heading B8T. A plastics bunghole bush comprises a larger plug 1 to be driven into a barrel bunghole, made integral with a smaller plug 2 by a weak connecting joint 8. The smaller plug 2 has a bore 6 closed by a rupturable film 7. When the larger plug 1 has been forced into a bunghole 3, as shown, the smaller plug 2 is driven into the larger plug, breaking the weak connecting joint 8, Fig. 2 (not shown). A peripheral ridge 10 around the smaller plug 2 then lodges in a groove 9 inside the larger plug 1. Finally, a tap &c. is driven through the film 7 into the barrel. The box 5 of the larger plug, and/or the outer surface of the smaller plug 2, may be tapered.
Patent GB-1074957-A (GB)
Title: A method of and a device for discharging volatile active liquids over a prolonged period at a uniform rate
IPC: A01M13/00
Filed: 1963-12-12
Abstract: Volatile active liquids, e.g. biocides such as insecticidal phosphorus compounds, are discharged into the atmosphere or into water for a prolonged period at a uniform rate by a pressurized dispensing container using a liquid or gaseous propellant, the container discharge opening being closed by an exit layer of porous inorganic material, which enables the active liquid to diffuse through it (see also Division F1).  Examples of volatile phosphorus compounds are dimethyldichlorovinyl phosphate, diethyldichlorovinyl phosphate, di - n - propyland di - isopropyldichlorovinyl phosphate, di - n - butyldichlorovinyl phosphate, di - amyldichlorovinyl phosphates, dimethyl - and diethyldibromovinyl phosphate and methylethyldichlorovinyl phosphate, dimethyl - 1:2 - dibromo - 2: 2 - dichloroethyl phosphate, and other compounds are derived from formulae given in the Specification.  Examples of propellants are nitrogen, air, carbon dioxide, rare gases, low-boiling hydrocarbons and fluorohydrocarbons.ALSO:Volatile active liquids, e.g. biocides such as insecticidal phosphorus compounds, are discharged into the atmosphere or into water for a prolonged period at a uniform rate by a pressurized dispensing container using a liquid or gaseous propellant, the container discharge opening being closed by an exit layer of porous inorganic material, which enables the active liquid to diffuse through it (see also Division F1).  Examples of volatile phosphorus componds are dimethyldichlorovinyl phosphate (DDVP), diethyldichlorovinyl phosphate, di-n-propyl- and di-isopropyldichlorovinyl phosphate, di-secondary butyldichlorovinyl phosphate, di-n-butyldichlorovinyl phosphate, diamyldichlorovinyl phosphates, dimethyl- and diethyldibromovinyl phosphate and methyl-ethyl-dichlorovinyl phosphate, dimethyl-1:2-dibromo-2:2-dichloroethyl phosphate and other compounds derived from formulae given in the Specification.
Patent GB-493180-A (GB)
IPC: D01H5/26
Abstract: 493,180. Drawing - apparatus for rovings. CASABLANCAS HIGH DRAFT CO., Ltd., and CASABLANCAS, F. Dec. 6, 1937, No. 33762. [Class 120 (ii)] In endless-belt drawing-apparatus, one or each of the belts, or the only belt if used with a plate and /or a roller, is provided with one or more belts 10 .. 13 arranged interiorly to improve the fibre control. By arranging inner belts of varying thickness and rigidity the pressure may be varied along the contact surface of the belts. The inner belts may be suitably deflected by rods, bars or plates, Figs. 5 .. 8 (not shown) ; they may be narrower than the outer belts ; two or more may be used side by side ; and the carrying-rollers may be recessed or grooved to accommodate them.
Patent GB-1399066-A (GB)
Title: Ink jet recording system
IPC: B05B5/025
Filed: 1973-10-24
Abstract: 1399066 Ink-jet printers INTERNATIONAL BUSINESS MACHINES CORP 24 Oct 1973 [11 Dec 1972] 49511/73 Heading G4H An ink-jet printer incorporates logic 28, Fig. 5, for adjusting the phase relationship between drop-forming and drop charging signals in accordance with the sensed charge on a series of test drops. Test signals are derived from a clock 30, Fig. 6 (not shown), and are applied to a nozzle vibrator 12 and an electrode 14, the charge on the test drops being monitored by a sensor 16. Clock 30 comprises a ring counter which produces pulse-trains F1-F8, Fig. 2 (not shown), successively displaced by # of a period; pulse train F1 is used to drive vibrator 12. One of F1-F8 is used to control a gate 78 through which data signals pass from a generator 76 to the charging electrode 14: this pulse train is selected by gates 82 or 88 (A1-A8) during a print or a test phase respectively, the particular gate which is enabled being determined by the output of a modulo-8 counter 48 controlled by the output from sensor 16. In an initial test phase counter 48 is set to 0 and gate A1, 88 passes pulse train F1 as test charging pulses via gates 92, 42 to electrode 14, sensor 16 (which comprises a threshold device) determines whether or not the test drops have been fully enarged and sends an output to counter 48 which enables one of gates 94 or 44 so as to decrement or increment 48 (and thereby select a different pulse train). During the remainder of the initial test period the count in 48 is alternately stepped up and down by 1 according as the drops cease to be or become fully charged; at the end of this period gate 78 is enabled by the prevailing pulse train F. The possibility that the count in 48 may be wrong by a count of 1 does not matter in practice as the counter output is fed to decoders 80, 86 which select the gate A corresponding to a count of 3 less than the actual count (e.g. A2 for a count of 5) so as to produce a "broader" print phase charging pulse than is used in the test phase. Subsequent test phases, which may take place during a "carriage return" operation for example, are as above except that counter 48 is not initialized to 0.
Patent GB-1525544-A (GB)
Title: Transistorized power supply circuit
IPC: H02M3/337
Filed: 1976-11-29
Abstract: 1525544 Automatic voltage control MULLARD Ltd 29 Nov 1976 49633/76 Heading G3R [Also in Division H2] Regulation of the output of a D.C. to D.C. transistor converter is achieved by feeding an error signal indicative of deviation of the voltage at the converter output terminals 14, 15, from the desired voltage to a control input 21 of the source 18 of switching pulses for the transistors, which source 18 comprises a ramp generator 22 feeding two threshold devices 23, 24, which respectively produce an output when the ramp exceeds a threshold value of the device to change the mark-to-space ratio of the transistor switching pulses and thus change the converter output to reduce the error signal, the two respective threshold values of the two devices 23, 24 being symmetrical about the mean value of the triangular ramp signal, and the separation between the two threshold values being controlled by the error signal.
Patent GB-1123418-A (GB)
Title: Process for preparing printing blocks of plastics material
IPC: B41C1/02
Filed: 1965-11-23
Abstract: 1,123,418. Etching. FARBWERKE HOECHST A.G. 23 Nov., 1965 [12 Dec., 1964], No. 49678/65. Heading B6J. A polyoxymethylene printing block is prepared by an etching process in which there is applied to the portion of the block to be etched, at a temperature between 40‹ C. and the softening point of the polyoxymethylene, an etching agent comprising an acid or a compound which reacts to form an acid at a temperature above 40‹ C., thickened by an acid-proof filler to yield a paste. The acid may be phosphonic or sulphosalicylic and the compound which reacts to form an acid may be an ammonium salt of a castor oil sulphuric acid ester (Turkey red oil). The filler may be titanium dioxide, barium sulphate, chromium-III-oxide or pyrogenically prepared silicon dioxide. A wetting agent e.g. the reaction products of tributyl phenol and ethylene oxide may be present in the etching agent.
Patent GB-497148-A (GB)
IPC: H03B5/22
Abstract: 497,148. Valve generating circuits. WILLANS, P. W., and MUIRHEAD & CO., Ltd. April 12, 1937, No. 10347. [Class 40 (v)] A circuit for generating or selectively amplifying substantially pure sinusoidal waves comprises thermionic valves retroactively coupled through a non-resonant filter network arranged to give a zero phase displacement at the required frequency. In the Figure two valves are provided coupled through the non-resonant network comprising condensers C1, C2, which may be variable and ganged, and resistances R1, R2. The degree of amplification may be controlled by negative feedback which as shown comprises the circuit 12 including condenser 14 and variable resistance 13. The control of regeneration to give oscillation or selective amplification is effected by varying 13. If the valve 2 is a pentode set to operate on a point of inflection of its characteristic, second harmonic output is negligible. Specification 395,596 is referred to in the Complete Specification and Specification 489,849 in the Provisional Specification.
Patent GB-1190258-A (GB)
Title: Improvements in Roadmarking Studs
Inventor: BEVERLEY WILLIAM MAYNARD
IPC: E01F9/07
Filed: 1967-11-02
Abstract: 1,190,258. Reflective road studs. W. M. BEVERLEY. 30 Oct., 1968 [2 Nov., 1967], No. 49937/67. Heading E1G. In a self-cleaning reflective road stud comprising a rubber or thermoplastics dome 2 supported if desired in a metal frame and carrying one or more reflectors 1 of bar or other type, a deformable chamber 5 is provided within or (as shown) beneath the stud body and communicates with outlet passages 7-9 in an annular skirt 6 so that the reflectors 1 are cleaned by emerging streams of air or water whenever the chamber is deformed by a passing vehicle. As shown the dome 2 is circular.
Patent GB-1525616-A (GB)
Title: Method and apparatus for adjusting and readjusting an automatic corrector for a data signal transmission system
IPC: H03H17/02
Filed: 1975-12-05
Abstract: 1525616 Transversal equalizers GRETAG AG 5 Dec 1975 [6 Dec 1974] 50089/75 Heading H4R In a PAM signal equalizer, a preliminary transmitted reference signal received at 35 is corrected in a transversal equalizer 48 and the output 41 compared 42 with a locally generated model 28 to generate a first error signal which is given different weights at 46, 47 for respective groups of equalizer tap multipliers 37 (i.e. the central group is more heavily weighted to accelerate convergence), after which communication signals are equalized and compared 42 with thresholded versions 43 to generate a second error signal which as shown is similarly weighted for adaptive correction. Accumulators 39 at each tap store the coefficients. In digital embodiments weighting of the error signals is performed according to a stored profile.
Patent GB-1132576-A (GB)
Title: X-ray contrast media
Inventor: BROWN GARLAND RICHARD
IPC: A61K49/04
Filed: 1965-11-26
Abstract: 1,132,576. X-ray contrast agents. MALLINCKRODT CHEMICAL WORKS. 26 Nov., 1965, No. 50458/65. Heading A5B. An X-ray contrast composition comprises BaSO 4  and a non-toxic fluidizing agent which is a water-dispersible colloidal anionic ether or ester derivative of a low molecular weight polymer glucan or a salt thereof (e.g. sodium CMC, sodium dextran sulphate or other starch derivatives), a 2% W/W aqueous solution of which at 25‹C has a viscosity not above 50 centipoises and which is present in an amount within the range 0.04 to 1.0 gm. per 100 gms. of BaSO 4 . Carrageenin and other conventional additives, e.g. polyhydric alcohols, wetting agents and antifoaming agents, may also be present. The compositions may be prepared dry and used for the extemporaneous preparation of aqueous suspensions for radiographic purposes.
Patent GB-1506137-A (GB)
Title: Amusement ball game devices
IPC: A63F7/00
Filed: 1976-12-04
Abstract: 1506137 Ball table W V GAMBER 4 Dec 1976 50666/76 Heading A6H  A ball game apparatus comprises transparent surfaces sloping down to goals at each end of the apparatus, whereat there is a manually-operated ball nipper bar 89 moveable transversely of the goal.  The flipper 89 is moved by a plunger 43 connected to levers 86, 87. Balls fall into side chutes (57, Fig. 2). They are automatically divided into equal quantities releasable by coin-operated gates (67). Balls are fed onto the surfaces through holes 18, 19.
Patent GB-1446215-A (GB)
Title: Two-part room temperature vulcanizable silicone rubber compositions
IPC: C09C3/12
Filed: 1973-11-05
Abstract: 1446215 Treating silica GENERAL ELECTRIC CO 5 Nov 1973 [4 Dec 1972] 51316/73 Heading C1A [Also in Division C3] Silica for use in silicone rubber compositions (see Division C3) is obtained by treating a silica of surface area at least 20 m.<SP>2</SP>/g. and having 0À2-2 wt. per cent of OH groups and/or water at 100-180 C. simultaneously with (1) 0À5-5 wt. per cent (of the SiO 2 ) of a hydroxylamine R<SP>1</SP>R<SP>2</SP>NOH, wherein R<SP>1</SP> is a hydrocarbon or halohydrocarbon radical and R<SP>2</SP> is H or as R<SP>1</SP>, (2) 2-25 wt. per cent of a cyclic siloxane wherein R<SP>3</SP> is as R<SP>2</SP> and n is 3 or 4, and (3) 1-20 wt. per cent of a compound R<SP>4</SP> 3 Si-NR<SP>5</SP>Y, R<SP>4</SP> 3 Si-ONR<SP>5</SP> 2 , or (R<SP>4</SP> 3 Si) 2 NY, wherein R<SP>4</SP> and Y are as R<SP>2</SP> and R<SP>5</SP> is as R<SP>1</SP>. In the examples 90 p.b.w. of fume silica of 200 m.<SP>2</SP>/g. and 10 p.b.w. of precipitated silica of 300 m.<SP>2</SP>/g. is heated with 12 p.b.w. (Me 3 Si) 2 NH, 8 p.b.w. [Me 2 SiO] 3  and 2 p.b.w. Et 2 NOH (cf. Specification 1,429,960).