baber/WOPTO huggingface dataset:
Patent GB-1436757-A (GB)
Title: Drop out compensation system
IPC: H04N9/882
Filed: 1973-09-11
Abstract: 1436757 Colour television QUANTEL Ltd 6 Sept 1974 [11 Sept 1973] 42761/73 Heading H4F A dropout compensating signal generator 10, Fig. 6, for a colour television signal, particularly one in digital form derived by sampling and quantizing an analogue signal at three times the colour subcarrier frequency, comprises for an NTSC type signal two series connected delay circuits 11 and 12, Fig. 1, each imparting a delay equal to the sampling period of one digital word (e.g. 93 ns.) an adder 15 receiving the delayed and undelayed signals, a divider 19 which halves the amplitude of the adder's output and a one line period delay 21. The resulting dropout compensating signal is correctly timed and has the correct luminance level and correct hue (phase), but has a reduced (halved) colour saturation component (N.B. the 180 degree phase relationship of the modulated NTSC subcarrier which is present between lines is automatically produced). Delays 11 and 12 may comprise shift registers. The delay line store 21 may be located at input 22 (Fig. 4, not shown) or between the adder 15 and divider 19 (Fig. 5, not shown). For analogue signals the generator 10, Fig. 7, comprises delay circuits 40 and 41 consisting of coaxial cable or LC components each introducing a delay of 93 ns., i.e. one third the subcarrier frequency period, an adder circuit 42 which halves the sum of its inputs, and an ultrasonic quartz one line period delay line 47. For a PAL signal the dropout generator 10, Fig. 8, again comprises two 93 ns. delays 50 and 51, but adder 52 sums three signals so that its output signal does not contain any chrominance information. The resulting luminance signal is divided by three by divider 53 and delayed by one line period 54. But since the PAL signal decoder in a colour television display averages the chrominance signal over two successive lines the reinserted luminance dropout compensating signal will be displayed as a colour signal of correct hue but with 50% saturation. Another PAL dropout generator may use the television signal which occurs two lines earlier, i.e. a delay line store of two line periods, the rest of the generator being identical to an NTSC dropout signal generator, but since the PAL decoder averages the chrominance information over two successive lines the reinserted dropout signal will have the correct luminance and hue but with 75% saturation. For "SECAM" (Registered Trade Mark) type signals two lines of delay with no subsequent processing is sufficient so that by including a switch 66, Fig. 9, in a PAL dropout generator (same as NTSC dropout generator but with a two line period delay 64, 65) a dual PAL/ "SECAM" dropout generator is obtained.
Patent GB-1427208-A (GB)
Title: Method and apparatus for reducing the amount of pollutants in engine exhaust gases
IPC: F01N3/10
Filed: 1973-09-12
Abstract: 1427208 Treating exhaust gases WALLACEMURRAY CORP 12 Sept 1973 42874/73 Heading B1W [Also in Divisions Fl, F3 and F4] I.C. engine exhaust gases are treated by being passed through a thermal reactor having at least two stages which are separated by the turbine component of a turbocharger for air charging the engine. Exhaust gases pass from the cylinders to a first reactor stage 14, then via a passage 21 to the turbine component 31 of turbocharger 28 and to a second reactor stage 22 before being discharged to atmosphere through tubing 42 and a muffler (not shown). air is supplied to the engine via compressor 27 of the turbocharger 28, passage 26 and carburettor 23. The first reactor stage 14 (Fig. 3) comprises inlets to chamber 16, from which the gases pass through ports 17, passages between a shield 18 and the wall of chamber 16 and the passage .between shield 18 and the insulated outer wall 19 to the discharge passage 21. In Fig. 5 (not shown), air is supplied via a tube (58) to the first stage reactor (52) by an air injection pump (57). Air is also supplied via tube (56a) to the entrance to the turbine wheel (54) for further oxidation in the second stage reactor (61). Instead of the tube (58) the air could be supplied to the reactor via internal cylinder head passages.
Patent GB-943934-A (GB)
Title: Infrared analyzer
IPC: G01N21/37
Filed: 1961-12-01
Abstract: 943,934. Infra-red analysers. BECKMAN INSTRUMENTS Inc. Dec. 1,1961 [April 3,1961] No. 42998/61. Heading G1A. An infra-red analyser of the type described in Specification 914, 381 in which two detector cells 12, 13 each comprising two zones 51, 52 and 42, 43 respectively separated by a deformable membrane that forms one plate of a capacitor, has means provided for adjusting the delay occurring in the deformation of at least one of the membranes with respect to the phase of cyclic variation of the radiation, for equalizing the phase delay of the capacitance change in the two capacitors in response to variation in the radiation passing through both cells. In the embodiment shown the delay in the deformation of the membrane of cell 12 is controlled by a bypass passage round the capacitor structure, which interconnects zones 51 and 52 through a needle valve 56 controlled by a transverse bar 60 of soft iron secured to a shaft 54 which may be remotely turned by a magnet 58. In two further embodiments of the valve (Figs 3 and 4 not shown) the end of the shaft 54 projects out of the analyser housing and is enclosed in a cap and in one of these embodiments the transverse bar is replaced by a slotted head for screwdriver rotation. In another embodiment (Fig. 5 not shown) the delay is controlled by a screw operated piston which adjusts the pressure in the cell. An amplitude detection system (Fig. 2 not shown) for use with the analyser is of the type referred to in the aforementioned Specification. Specification 818,102 also is referred to.
Patent GB-1060485-A (GB)
Title: Method of preparing photographic developer compositions
Inventor: PASTERNAKLEVENSON GERALD ISAAC
IPC: G03C5/26
Filed: 1962-11-19
Abstract: 1,060,485. Photographic developing solutions. KODAK Ltd. Nov. 19, 1963 [Nov. 19, 1962], No.43615/62. Heading G2C. A working strength photographic silver halide developing solution is made by mixing together water, an aqueous developer concentrate which constitutes, or is a concentrate of, a replenisher for the developing solution, and a starter solution prepared by taking aqueous hydrobromic acid and mixing therewith any water or other ingredients required. The starter solution may contain, in addition to hydrobromic acid, sodium or potassium bromide and some or all of the silver halide developing agent or agents although it is preferred that the latter be present in the developer concentrate. In an Example a starter solution containing aqueous hydrobromic acid and potassium bromide is mixed with water and a developer concentrate containing 1-phenyl - 3 - pyrazolidone, hydroquinone, borax, potassium hydroxide, potassium metabisulphite and potassium bromide.
Patent GB-1063867-A (GB)
Title: Glass-electrode cell assembly
IPC: G01N27/416
Filed: 1964-10-27
Abstract: 1,063,867. pH measuring apparatus. E. MOLLER and W. MOLLER, [trading as GEBRUDER MOLLER GLASBLASEREI]. Oct. 27, 1964 [Nov. 13, 1963], No.43790/64. Heading G1N. In an electro-chemical cell assembly comprising a glass electrode and a reference electrode, the buffer solution filling in the glass electrode is chosen to have a pH and ion activity such that the potential of the cell assembly is zero, independent of temperature, at a pH of 7 of a sample being investigated in the cell. Many examples are given but preferablv the buffer solution should comprise: a mono- or poly-basic acid (e.g. p-nitrophenol, diethylmalonic acid, phenylphosphoric acid, phosphoric acid), a mono- or poly-acidic base (e.g. morpholine, mono-, di- or tri-ethanol amine), halide ions (e.g. chloride, not exceeding 0À1 M) and a neutral salt in an aqueous solution which may also contain a polyvalent alcohol (e.g. glycol, glycerol). The reference electrode may be a coloured reference electrode and the electrode in the glass electrode may be silver/silver halide (e.g. Ag/AgCl) or an Hg/coloured electrode. The cell assembly is suitable for use at temperatures up to 80‹C.
Patent GB-1086266-A (GB)
Title: Removable lock for doors
IPC: E05B65/00
Filed: 1964-10-29
Abstract: 1,086,266. Door locks. B. DE LA CRUZ CARNICERO. Oct. 29, 1964, No. 44163/64. Heading E2A.  A removable door lock comprises a keeper and a lock structure, the keeper having a plate 1 adapted to engage one face of the door and a member 4 adapted to pass across the edge of the door to the other face thereof, the lock structure being engageable with said other face of the door and its casing having a slot 5a or 9 through which a head 6 of the member 4 enters for engagement with a bolt 8a. The construction shown in Fig. 7 is intended for securing two leaves 12 of a double door, the lock structure being on the outside of the door and the member 4 passing between the two leaves with said plate 1 of the keeper engaging the rear face of the door. The keeper comprises the said plate 1 and an additional plate 1 the plate which engages the door leaves having four guide rods fixed to it, on which the other plate slides, the two plates being urged apart by springs 3. The slidable plate 1 carries the member 4 and hence in use when the member 4 is passed between the leaves of the door one of the leaves is clamped between the rear edge of the head 6 and the door engaging plate 1. The head 6 enters the slot 9 in the lock structure to be engaged by the bolt 8a which is movable by means of a key 8 the bolt engaging a slot 7 in the head 6. The casing of the lock structure carries a pad 10 which is pressed by a spring against the door surface when the lock structure is in position. If desired the keeper and lock structure can engage not only two leaves of the door but a fanlight above the door. The lock structure can also be provided with a sliding bolt 11 engageable with a recess in the bottom of the door frame. In another construction for use with a single leaf door. Figs. 9 and 11, the keeper comprises a casing in which is slidably mounted a plate 16 at one end of which is the member 4; the casing comprises said plate 1 which engages the door leaf and a back plate 1. The plate 16 is movable within the casing by a screw threaded bolt 14 passing through a nut 15 attached to the back plate and which loosely engages the plate 16. Hence the screw moves the member 4 so that the door leaf can be clamped between the rear edge of the head 6 and the front plate 1 of the casing. The lock structure has a slot 5a in its casing for the head 6 of the keeper and this is engaged by the bolt 8a which enters a slot 7. The casing has two pins projecting from it which engage in recesses in the door frame. As shown the pins are on the vertical face of the casing but in a modification they can be on the top or bottom face of the casing.
Patent GB-1470650-A (GB)
Title: Lubricating compositions containing sulphurised norbornyl derivatives
IPC: C10M135/04
Filed: 1974-04-03
Abstract: 1470650 Lubricants ETHYL COOPER Ltd 3 April 1974 [12 April 1973] 44273/76 Divided out of 1470649 Heading C5F A lubricating composition comprises a major amount of lubricating oil and a minor amount of at least one S-containing norbornenyl compound of the formula wherein (a) each of R, R<SP>2</SP> and R<SP>4</SP> when taken singly is a hydrogen atom, an alkyl group containing from 1 to 15 carbon atoms, an aryl group containing from 6 to 15 carbon atoms or a cycloalkyl group containing from 4 to 10 carbon atoms; (b) each of R<SP>1</SP> and R<SP>3</SP> when taken singly is a hydrogen atom, an alkyl group containing from 1 to 15 carbon atoms, an aryl group containing from 6 to 15 carbon atoms; a cycloalkyl group containing from 4 to 10 carbon atoms or an alkenyl group containing from 2 to 10 carbon atoms of R<SP>1</SP> and R<SP>3</SP> taken together form the group -CHY.CY=CY- in which Y is a hydrogen atom or a methyl group or R<SP>1</SP> together with R<SP>2</SP> form an alkylidene group containing from 1 to 6 carbon atoms; and (c) R<SP>5</SP> is a hydrogen atom or an alkyl group containing from 1 to 15 carbon atoms. The sulphurized product of Formula A above preferably constitutes 0À1 to 10% by wt. of the composition. The compositions may also contain other conventional additives. The compositions may also be formulated as concentrates comprising a minor amount of a lubricating oil and a major amount of the product of Formula A above which may be diluted with further quantities of oil prior to use.
Patent GB-1079764-A (GB)
Title: Extraction of alginate
Inventor: HAUG ARNE
Filed: 1964-11-04
Abstract: A process for extracting alginate from algae in which the alginic acid is present in the form of calcium alginate comprises subjecting the algae to pre-extraction with an aqueous solution containing hydrogen, alkali metal or ammonium ions in a quantity sufficient to exchange with substantially all the calcium ions and convert the calcium alginate into a form which is soluble in aqueous solutions of pH 6 to 7, discarding the pre-extraction solution and extracting the pre-treated algae with an aqueous medium, ensuring that the pH of the resulting extract does not exceed 7.  In examples, alginic acid is (1) pre-treated with 2N sodium chloride and extracted with water at 50 DEG  C.; (2) pretreated with dilute sulphuric acid and extracted with aqueous sodium carbonate; (3) pre-treated with hydrochloric acid and extracted with aqueous sodium hydroxide; (4) pre-treated with 2N sodium chloride and extracted with aqueous sodium oxalate.  The alginate R may be isolated from the extract by precipitation with acid, calcium chloride or alcohol.
Patent GB-1026624-A (GB)
Title: Improvements in,or relating to,protective coatings for cathode ray tubes
IPC: H01J29/87
Filed: 1962-11-28
Abstract: In a method of protecting a television picture tube against implosion, a base layer consisting of cellulose acetate-butyrate or a vinyl resin, and of a plasticizer and an ultraviolet stabilizer, is applied by fluidized bed coating to the tube faceplate, and this layer is coated with a top layer of a thermosetting resin solution containing a flatting agent.  The base layer may be 0.1 to 1.3 mm. thick and the vinyl resin may be a vinyl halide, a vinyl ester or a copolymer of vinyl halides and vinyl esters.  The top layer may be 0.002 to 0.1 mm. thick and may be formed by flowing or spraying on a solution of a urea/formaldehyde resin in an organic solvent containing dye and a flatting agent, to form a blue-tinted, mar and scratch resistant outer surface.  Specific examples are given. Network coatings, continuous with the faceplate coating, may be applied over the conical side wall of the tube, Fig. 3 (not shown).
Patent GB-974679-A (GB)
Title: Automatic signalling apparatus
Inventor: DAVIS DONALD GENE
IPC: H01Q1/08
Filed: 1962-11-28
Abstract: 974,679. Radio signalling; aerials. DOUGLAS AIRCRAFT CO. Inc. Nov. 28, 1962, No. 45016/62. Headings H4A and H4L. A radio beacon, e.g. for air-sea rescue work, is provided with a flexible aerial attached to an inflatable float which is automatically inflated upon the initial operation of the apparatus to eject and extend the aerial automatically. The apparatus is carried in a textile vest 10, Fig. 1, a parachute being fitted over the vest, and is provided with a pocket 9 carrying a battery 11, a pocket 13 housing a radio transmitter 18 which is switched on when the parachute opens by a cord 15a attached to a hook 14 on the parachute riser, and a pocket 16 carrying the collapsed aerial and float also controlled by a cord. The flaps of the pocket 16 are held closed by a cord which passes through a conventional reefing-cutter including a delay mechanism which is actuated by a cord attached to a parachute riser. An inflator switch for triggering the inflator of the float is normally held open by a cord also passing through the reefing cutter. When the parachute is opened both cords are cut, the pocket 16 is opened and the switch is actuated to supply current to an explosive charge which forces a pin into the puncturable wall of a capsule containing compressed carbon dioxide whereby the float is inflated. The expansion of the top and bottom surfaces of the float, Fig. 3, erects the flexible whip aerial 26 which was coiled inside it, a lead 24 connecting the aerial to the transmitter and a portion 26a projecting through the top of the float. The float will remain substantially upright on land or water due to its shape and the weight of the inflator unit 38. A conventional hand-lever firing arrangement may be provided for inflating the float if the switch mechanism should be inoperative.
Patent GB-984381-A (GB)
Title: Improvements in silver halide emulsions
IPC: G03C1/34
Filed: 1962-11-28
Abstract: 984,381. Photographic silver halide materials. E. I. DU PONT DE NEMOURS & CO. Nov. 28,1962 (Nov. 29, 1961, No. 45038/62. Heading G2C. Photographic light-sensitive material comprising silver halide which is predominantly silver chloride, contains in the emulsion layer from 0.15 to 2. 5 g of unsubstituted 8-hydroxyquinoline and from 0. 4 to 2.4 g of 8-hydroxyquinoline-5-sulphonic acid per mole of silver halide or from 2 to 4 times these amounts of additives in a layer contiguous with the emulsion layer. The additives not only prevent development fog but fog which might be caused by dark-room safelights. Specifications 786,176 and 955,197 are referred to.
Patent GB-1099082-A (GB)
Title: Improvements in or relating to signal generators
IPC: G10H1/44
Filed: 1965-10-25
Abstract: 1,099,082. Tuning musical instruments. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 25, 1965 [Oct. 28, 1964], No. 45045/65. Heading G5J. Accurately controlled frequencies, for use in tuning musical instruments by optical, electric or other frequency comparison means or for reproduction as tones in an electrophonic musical instrument, are derived from an initial high-frequency signal by pulse-counting division. A frequency generator is continuously variable between, for example 40 kc/s. and 90 kc/s., and may be adjusted to an internal standard, such as a quartz-controlled standard of 81À4 kc/s. In tuning an instrument, taking every 185th pulse yields a frequency of 440 c/s., with which a<SP>1</SP> is tuned. Changing to every 196th pulse allows a flat<SP>1</SP> to be tuned and if the frequency generator is then varied so that taking every 185th pulse gives a flat<SP>1</SP> switching to every 196th pulse gives g<SP>1</SP>. In this way equal intervals can be tuned and an excellent approximation to a true equal-tempered scale obtained. Octaves outside the range which can be reached in this way can be obtained by combining pulse-counting division with simple bi-stable vibrators which bring about a frequency division by two. Use of a transducer or transducers in the instrument to be tuned allows precise frequency-comparisons to be made. Polyphonic and monophonic musical instruments can be made with twelve pulsecounting dividers, each yielding at least one quotient, or with one divider yielding at least twelve quotients respectively.
Patent GB-930449-A (GB)
Title: Improvements in or relating to adhesive tape applying machines
IPC: B31B50/72
Filed: 1961-12-15
Abstract: 930,449. Tape applying machines. UNIVERSAL CORRUGATED BOX MACHINERY CORPORATION. Dec. 15, 1961 [Feb. 2, 1961], No. 45061/61. Class 73. A machine for applying adhesive tape to moving box blanks is substantially the same as that described in Specification 881,442 but the tape wetting roller assembly is replaced by a spraying assembly 10 having a spray nozzle 205 positioned to direct a spray of liquid against the gummed surface of the tape as the latter is advanced by the suction drum 151. The spray assembly includes a solenoid-operated valve 206 controlled by the switch fingers 241. 242 which are adjustably positioned in the path of movement of the box blanks 12 and which also control the tape cutting and feeding mechanisms such that the length of tape applied is equal to the spacing of the fingers 241, 242. When the switch 241 is engaged by the leading edge of the box blank 12, the valve 206 is opened to provide a fine spray of water on to the tape as this is advanced by the drum 151, whilst when the finger 242 is engaged the tape is severed, tape feeding stopped and valve 206 closed with a slight time delay to ensure moistening of the trailing edge of the tape. The spraying assembly is provided with a heater and thermostat.
Patent GB-1203459-A (GB)
Title: Means of controlling and varying the flow of liquid through immersion type mixer units
Inventor: SILVER BERNARD
IPC: B01F7/16
Filed: 1967-10-04
Abstract: 1,203,459. Mixing apparatus. B. SILVER and S. J. SILVER. 4 Oct., 1967, No. 45082/67. Heading B1C. A device for immersion in a substance to be mixed or disintegrated comprises a motor 10 carrying a mixer head comprising a rotor (not depicted) and a stator 13 having an inlet 14 and outlets 15 with either of which is associated a valve adjustable during operation to control flow rate. As shown in Fig. 1 the valve comprises a shutter 16 pivoted at 17 and operable by a lever 18. In modifications it may be a disc (25, Fig. 2 not shown) liftable to close the inlet 14; a sleeve (28, Fig. 3 not shown) axially movable to close peripheral outlets; a sleeve rotatable to bring apertures therein wholly or partly into correspondence with the stator outlets (see Fig. 4, not shown) a disc vertically movable to close an outlet in the top of the stator, see Fig. 5 (not shown); or a perforated ring rotatable to bring apertures therein into correspondence with a ring of apertures in the top of the stator (see Fig. 6, not shown). The mixer may be built with the wall of the vessel as shown in Fig. 8.
Patent GB-930356-A (GB)
Title: Method and apparatus for applying a surface coating to furniture parts
IPC: B41F17/00
Filed: 1961-12-15
Abstract: A surface pattern is applied to a board of wood or to a similar furniture making material by applying at least one prime coat of a material having a resinous base to an outer surface of the board, heating and drying the prime coat, printing a pattern on the prime coat, applying an outer coat of a material also having a resinous base, and baking said outer coat.  Boards 1 on a belt 2 are treated by brushes 6 and are then preheated to between 50 DEG C. to 100 DEG C. by hot water radiators 8 in a chamber 7.  A fluid resinous prime coating is applied to the boards 1 in a chamber 10 by a feeding and doctoring means 11 and the coated boards then pass through heating and drying chambers 12 and 13, and a cooling chamber 16 in which cool air is blown thereon.  The surfaces of the boards may be ground and the boards may be passed through the apparatus to obtain a second prime coating.  The boards are fed on to a conveyer 26 and are printed in a unit comprising a paint roller 27, a transfer roller 28, and a soft rubber applicator roller 29 so as to <PICT:0930356/III/1> <PICT:0930356/III/2> provide a pattern thereon similar to the grain of natural wood. The printed boards pass through a heated chamber 30 and receive a further fluid resinous coating in a chamber 31.  They then pass through heating and drying chambers 33, 34 and the dried outer resinous coating is baked in an oven 37 at between 120 DEG C. and 180 DEG C.  The boards are cooled in a chamber 39 and may be passed through humidifying apparatus.  The prime coat and the top resinous coating may comprise aminoplasts, urea melamine resins, or oil modified alkyd resins.