baber/WOPTO huggingface dataset:
Patent GB-1063394-A (GB)
Title: Postcards
IPC: B42D15/04
Filed: 1965-06-30
Abstract: 1,063,394. Postcards. L. F. TICHNOR June 30, 1965 [May 25, 1965], No. 27745/65 Heading B6A. A plurality of postcards 12 are attached to one another by weakening lines 16 and the topmost postcard is attached by a similar weakening line 16 to an advertising panel 15 provided with a hole 17 for suspension of the postcard assembly from a hook for display.
Patent GB-219556-A (GB)
Title: Improved valve mechanism for internal combustion engines
IPC: F01L1/28
Filed: 1923-11-05
Abstract: 219,556. Asbury, D. F. Nov. 5,1923. Valves; valve gear.- A single valve 47 controlling the cylinder port 46 works in conjunction with coaxial inlet and exhaust valves 40, 33, the latter comprising a curved flange seating at 35, and the inlet valve 40 seating on the exhaust valve and having its upper face curved in continuation of the exhaust valve . The valves are shown closed, in which position they are all held by a spring 52. At the commencement of exhaust, the valve 47 is lifted by a cam 55, thereby allowing the cylinder pressure to act on the curved faces of the inlet and exhaust valves so as to move them both downwards against the action of the spring 52, thus opening the exhaust passage 15. Towards the end of the exhaust period, as the cylinder pressure becomes lessened, a bulge 57 on the cam brings a boss 49 against the bottom of the exhaust valve stem 28, thereby commencing the return of the inlet and exhaust valves, which then continues under the action of the spring until the exhaust valve becomes seated at 35. The inlet valve 40 then continues to move upwards by its own inertia, thereby opening the cylinder to the inlet passage 14 through ports 23, 27 in the body of the exhaust valve and its guide. Pistons 26, 37 act as dashpots to the exhaust valve. In a modification, the inlet valve 40 and valve 47 are flat, the former being flexible.
Patent GB-503620-A (GB)
Title: Combination electric lamp and battery tester
IPC: H01M10/42
Filed: 1937-10-13
Abstract: 503,620. Detecting faults. CHIVERTON, F. T. Oct. 13, 1937, No. 27772. [Class 37] A combined electric lamp and battery tester comprises a container a housing a battery or transformer tapped to give various voltages for testing different lamps, the tappings being connected to terminals c, mounted, adjacent a common terminal bar d, on a panel b closing the container, lamps being tested for continuity by applying the central terminal thereof to bar d and the side terminal thereof to the appropriate terminal c. Batteries are tested by bridging the terminals thereof acroas either fixed contacts g, g<SP>1</SP> or across g and a spring-biassed rotatably mounted terminal arm h whereby batteries of various sizes may be accommodated, their voltage being indicated by the degree of illumination of a lamp l mounted on the panel. According to the Provisional Specification, meters may be used to indicate the condition of the lamps and batteries under test.
Patent GB-1479487-A (GB)
Title: Measuring flow velocity
IPC: G01P5/18
Filed: 1974-06-24
Abstract: 1479487 Measuring flow velocity LAPORTE INDUSTRIES Ltd 3 June 1975 [24 June 1974] 27900/74 Heading G1N The invention relates to a method of end apparatus for measuring the velocity of fluent material flowing in a conduit. The method comprises causing a discrete portion of the material to have a temperature substantially different from the temperature of the material in the remainder of the flowing material and measuring the time taken for that portion to traverse a known distance along the conduit by means of one or more temperature sensors. The material may be a particulate solid e.g. cement, powdered coal, sand, inorganic oxides, ground ores and metal powders. The temperature of the discrete portion is caused to be higher than the remainder. The discrete portion may be heated by an electrically powered filament heater which is connected to the mains supply through a triac for producing heating pulses of the order of 1 second in duration. The temperature differential is at least 500‹C. The temperature sensor or sensors is/are thermistor(s) and the output is fed to a differential amplifier the other input of which is connected to a thermistor located upstream of the heater. The amplifier is connected through a differentiator and a voltage sensing circuit to a logic circuit which in turn controls the actuation of the triac.
Patent GB-922538-A (GB)
Title: Food product processing apparatus
IPC: A23L3/04
Filed: 1959-08-17
Abstract: 922,538. Sterilizing food in containers. A. MAY. Aug. 17, 1959 [Nov. 18, 1958], No. 27985/59. Class 49. In an apparatus for continuously sterilizing food in sealed containers, the containers are carried through an elongated open-ended tunnellike chamber 1 on the upper flight 15 of an open mesh conveyer belt 14 and subjected to steam ejected downwardly from a plurality of transversely arranged tubes 55, 57, 73, 173, 273, 373, preferably U- shaped, which extend inwardly from both sides of the tunnel in a horizontal plane, the steam being reheated and cyclic turbulence created in a substantially vertical orbital path by heaters, e.g. gasfuel burners 38, 39, 40, 58, 62, 81, 82, 162, 262, 362, 84 located below the upper flight 15 of the conveyer belt and occupying positions offset longitudinally of the chamber relative to the steam tubes, i.e. in vertical planes between the U-tube limbs. Steam delivery rate and degree of heating are controllable for individual steam ejection tubes and heaters by adjustable steam supply valves 51, 79, 379, and gas-fuel supply valves 46, 60, 64, 69, 169, 264 &c., controlled by thermal responsive units 47, 61, 65, 165, 265 &c. (one for each burner) and by manual gas supply valves, e.g. 48, which may also be provided. The steam tubes and heaters are grouped to produce areas of different temperatures spaced longitudinally of the chamber and additional upper gas burners 67, 167 &c. may be located in the upper half of the tunnel immediately behind steam ejection tubes.
Patent GB-1420284-A (GB)
Title: Control of gas-fired appliances
IPC: F23N5/14
Filed: 1973-06-13
Abstract: 1420284 Valves PARKINSON COWAN APPLIANCES Ltd 4 June 1974 [13 June 1973] 28063/73 Heading F2V [Also in Division F4] Gas burner control means comprises a manually-operable-valve 10 which can be set in an off position Fig. 4, a maximum flow position, Fig. 1 (not shown), or an intermediate position Figs. 2, 3 (not shown), a by-pass valve having a closure member 32 which provides when open an addition to the flow of gas through valve 10 in its intermediate position, a temperature sensitive device arranged automatically to close member 32, and manually operable means for initially setting closure member 32 in its open position. Manually-rotatable valve 10 has a full flow passage 18, connected to the burner through a passage 19, and a part flow passage 20, 21, the full or part flow passages being selectively connected to a gas main 34 wherein the gas flows to the burner through passage 19, or through passages 16 via an elastomeric pad 22. The by-pass valve is connected to main 34 by passages 33, 31, and to valve 10 by a passage 30, the closure being adapted to be opened by a solenoid 36. In operation, valve 10 is turned from the Fig. 4 off-position with a switch SW1 operated to trip an electric circuit Fig. 5, to an intermediate position, say the Fig. 2 position, which will give a suitable gas supply to provide a hot plate burner simmering state. A button PB1 is pressed so as to set the circuit to energize solenoid 36 which opens closure member 32, so that the gas flow through passages 30, 18, 19 augments the flow through passages 16, and a liquid on the hot plate is heated rapidly. When a desired temperature is reached a thermistor TH1 trips the circuit, solenoid 36 is de-energized and closure member 32 shuts-off the by-pass to reduce the gas flow to the simmering rate. If desired valve 10 can now be controlled manually. The thermistor can be replaced by mechanical or electro-mechanical temperature sensitive means.
Patent GB-1444254-A (GB)
Title: Drive mechanism
IPC: F16H37/12
Filed: 1973-06-13
Abstract: 1444254 Chain gearing J H BREMS 13 June 1973 [15 June 1972] 28098/73 Addition to 1371215 Heading F2Q A mechanism for producing intermittent motion of an output bar 142 comprises a sprocket 126 rotatably mounted in a carrier 136 supported by rollers 140 and adapted to move along the bar 142, the sprocket 126 having eccentrically secured thereto a sprocket 122 which is adapted to be driven at constant speed by a driving sprocket 108 through a chain 124. A chain 148 passes around the sprocket 126 and idler sprockets 150 and has its ends connected to the output bar 142 through blocks 152. The sprockets 108, 122 are maintained a fixed distance apart by a link 110 pivotally mounted on the axis of rotation of sprocket 108. In a modification, an output sprocket 530 is connected by a chain 528 to a sprocket 526 which is integral with an eccentrically mounted sprocket 514 which is driven from a driving sprocket 510 through a chain 512. The centre distance of sprockets 510, 514 is maintained by a link 518 and the centre distance of sprockets 526, 530 is maintained by a link 538. In a further modification, shown in Fig. 12, a chain 628 passes around an output sprocket 630, a sprocket 626, and idler sprockets 646.
Patent GB-937753-A (GB)
Title: Improvements in and relating to foot buffers and the like for use on wire mesh display trays and other wire mesh articles
Inventor: GOULDING ERNEST HENRY
IPC: B65D25/24
Filed: 1959-08-18
Abstract: 937,753. Legs for trays &c. HALL & GOULDING Ltd. Aug. 18, 1960 [Aug. 18, 1959], No. 28183/59. Class 18. A foot or buffer of synthetic plastic, for wire mesh articles, comprises a block 1, one face 2 of which is rounded and the opposite face 3 flat. Undercut grooves 4 are provided in the flat face 3, the axes of the grooves intersecting at right angles so that the grooves may receive the crossing wires 5. The undercut portions 4a are preferably oblate in cross-section. The centre portion of the block is hollowed at 6 at the grooved face. In another embodiment of the invention (not shown) the number of grooves in the foot may be different and the grooves may intersect at any angle corresponding to that of the crossing wires.
Patent GB-671294-A (GB)
Title: Process for obtaining amino diols
Filed: 1949-11-03
Abstract: Aminodiols of the general formula <FORM:0671294/IV (b)/1> (wherein R1 and R2 are the same or different and represent hydrogen or alkyl or alkoxy radicals of not more than 4 carbon atoms) are manufactured by reducing b -substituted a -amino-b -hydroxypropionic acid esters of the general formula <FORM:0671294/IV (b)/2> (wherein R represents an alkyl radical of not more than 4 carbon atoms or an aralkyl radical). The reduction may be effected with hydrogen under a pressure of 1000-8000 (preferably 2000-4000) lbs./sq. inch in the presence of a nickel hydrogenation catalyst (preferably Raney nickel) at 20-125 DEG C. (preferably at 40-60 DEG  C.) in an inert organic solvent (e.g. a lower aliphatic alcohol or an ether thereof or a cyclic aliphatic ether), or with lithium aluminium hydride in a substantially anhydrous non-hydroxylic organic solvent (e.g. ether, benzene, dioxane, toluene, carbon tetrachloride or tetra-hydrofurane), or with an alkali metal and a lower aliphatic alcohol (e.g. sodium and ethanol).  Examples illustrate the application of the first of these methods to the reduction of (1) dl- or l-q -ethyl a -amino-b -hydroxy-b -phenylpropionate to dl- or l-q -1-phenyl-2-aminopropane-1 : 3-diol (the former of which is converted by warming with acetic anhydride to its O3 : N-diacetyl derivative and this compound by partial hydrolysis to dl-q -1-phenyl-2 - acetamidopropane - 1 : 3 - diol); (2) dl-reg. - methyl a  - amino - b  - hydroxy - b  - phenylpropionate to dl - reg. - 1 - phenyl - 2-aminopropane - 1 : 3 - diol; (3) ethyl a  - amino-b  - hydroxy - b  - (o - tolyl) - propionate to 1 - (o - tolyl) - 2 - aminopropane - 1 : 3 - diol; (4)dl - q  - methyl a  - amino - b  - hydroxy - b -(m - methoxyphenyl)-propionate to dl-q -1-(m - methoxyphenyl) - 2 - aminopropane - 1 : 3-diol; (5) dl-q -phenethyl a -amino-b -hydroxy-b - (3 : 4 - dimethylphenyl) - propionate to dl - q  - 1 - (31 : 41 - dimethylphenyl) - 2 - aminopropane - 1 : 3 - diol; (6) methyl a -amino-b -hydroxy - b  - (2 - methyl - 4 1 ethoxyphenyl)-propionate to 1-(21-methyl-41-ethoxyphenyl)-2 - aminopropane - 1 : 3 - diol.  In example (7) dl - q  - ethyl a  - amino - b  - hydroxy - b -phenylpropionate is reduced with lithium aluminium hydride in anhydrous ether.  b  - Substituted a -amino-b -hydroxypropionic acid esters of the second general formula above are obtainable by condensing benzaldehyde or an appropriately substituted benzaldehyde with aminoacetic acid and esterifying the resulting acid with a lower aliphatic or araliphatic alcohol.
Patent GB-171857-A (GB)
Title: Improvements in and relating to operating mechanism for searchlights, guns, and the like
IPC: F21V21/00
Filed: 1920-10-05
Abstract: 171,857. British Thomson - Houston Co., Ltd., (General Electric Co.). Oct. 5, 1920. Mountings. - A mounting for a gun, permitting its rotation about two axes at right angles, is provided with compensating means connecting the rotatable support with an operating shaft coaxial therewith so as to prevent movement of the gun in one plane from causing movement of the gun in the other plane. The gun (a searchlight is shown in Fig. 1) is trunnioned between arms 11, 12 on a turntable 13 rotated by a pinion 14 on an operating shaft 15. Rotation about a horizontal axis is effected by a pinion 16 engaging a gear-sector 17 and driven through bevel-gearing by a bevel-wheel 18. The latter is mounted on a vertical shaft journaled in a cap 19 enclosing an arrangement of differential-gearing comprising a bevel-wheel 22 on the shaft connected through pinions 25, 26 to a similar bevelwheel 21 on the operating shaft 20. A bevelwheel 23 on the turntable is connected through pinions 27, 28 with a bevel-wheel 24 secured to the stationary support on which the turntable rotates. The pinions 25, 26, 27, 28 are carried on a spider 29 which is rotatable about the shaft 20. When the turntable is stationary, rotation of the spider 29 is prevented by reason of there being no relative movement between the bevelwheels 23, 24, so that on rotation of the shaft 20, the bevel-wheel 22 is given a corresponding rotation, thus effecting rotation of the gun about an horizontal axis. When the apparatus is rotated about a vertical axis by rotation of the turntable, the relative movement between the bevel-wheels 23, 24 causes rotation of the spider 29, thereby causing, through pinions 25, 26, a rotation of the bevel-wheel 22 in the same direction and at the same speed as the turntable. As there is no relative movement between the bevel-wheel 18 and the turntable, the elevation of the gun is not affected.
Patent GB-690132-A (GB)
Title: Tinder boxes
IPC: F23Q2/18
Filed: 1950-11-20
Abstract: 690,132. Boxes. CRUZ, C. 1. D'. July 6, 1951 [Nov. 20, 1950], No. 28368/50. Class 18 [Also in Group XI] A tinder box 1 has a hinged lid 2 carrying a flint 15 in a resilient holder, e.g. a rubber plug 14 held by a keyhole shaped clamp 13 secured in a key-hole slot in a central compartment 10 of the lid 2, the flint 15 being so disposed that sparks struck therefrom will ignite tinder 7 contained in a sliding compartment 6, when the latter is slid to expose the tinder and the lid 2 and the box 1 are held at an appropriate angle. The compartment 6 is slidable in a substantially airtight shell 5 in which it is retained when not in use, and the tinder 7 may be produced by extinguishing the glowing charcoal of ignited cloth. A steel plectrum 17 is provided for striking the flint 15, and as an alternative ignition means matches may be provided in pockets 9, 11 in the lid 2 for striking against a strip 16 of igniting material.
Patent GB-429419-A (GB)
Title: Ultra-short wave reception device
IPC: H03D7/08
Filed: 1933-12-01
Abstract: 429,419. Valve circuits for wireless reception. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshagen, both in Berlin. Dec. 1, 1933, No. 28403/34. Convention date, Dec. 2, 1932. Divided out of 413,195. [Class 40 (v)] In order to decouple the aerial and local-oscillator circuit 2, 3 in a short-wave heterodyne receiver, the aerial is connected to the moving plate 7 of a differential condenser 4 shunted across the circuits 2, 3. The whole unit is enclosed in a screen, the shunt capacities 10, 11 to the circuit components being larger than the capacity across the fixed and moving plates of the condenser 4. The screen is capacitatively earthed at 12, and the moving plate 7 is also at earth potential.
Patent GB-918392-A (GB)
Title: Improvements in cleaning mine tubs
IPC: B60S3/00
Filed: 1959-08-21
Abstract: 918,392. Scraper devices for unloading wagons. SAARLANDISCHE GES. FUR GRUBENAUSBAU UND TECHNIK. Aug. 21, 1959 [Sept. 2, 1958], No. 28617/59. Class 78 (4). A cleaning apparatus for mine tubs comprises a frame 3 over a track 1 which carries mine tubs 2 and means for reciprocating a scraper 4 between a position where it scrapes the bottom of a mine tub passing over the track and a position where the scraper is clear of the tub. In one embodiment, the reciprocating movement is supplied by a piston 7 working in an hydraulic cylinder 8, the scraper 4 mounted on arms 5 moving in guides 5a being propelled by a piston rod 6. Dogs 14 mounted on an endless traction belt 13 engage an axle of the tubs to propel them along the track. In a second embodiment the movements of the scraper are automatically controlled by photo-electric cells and a tripping mechanism. The scraper may move in a horizontal plane instead of a vertical plane as shown. In this case the scraper would enter a tub from one side, the tub concerned being tipped towards the appropriate side.
Patent GB-908890-A (GB)
Title: Improvements in and relating to fire fighting
IPC: A62C2/00
Filed: 1957-09-11
Abstract: 908,890. Fire - extinguishing. RASBASH, D. J. Dec. 11, 1958 [Sept. 11, 1957], No. 28685/57. Class 47. [Also in Group XXVI] In a method of fire-fighting a current of humidified gas is propelled towards the vicinity of the fire by means of energy derived from a gas turbine engine, the humidity being present in the form of water vapour so that the current is transparent. The exhaust gas of the gas turbine engine may be directly humidified by spray nozzles located in a duct connected to the exhaust or the engine may drive a high-speed fan placed in an air duct, the air then being humidified. The water entering the humidifier may be heated to a temperature near the wet bulb temperature of the gas and baffles which may be adjustable or removable may be provided in the humidifier to create turbulence. Further water spray may be introduced into the gas at the entrance to or along ducting by which it is carried to the heat of the fire. Another method of humidifying the gas is by cooling the exhaust with cold water at a rate greater than that required to humidify the gas. The water drops remaining in the gas are removed by baffles. Some of the gas produced by the engine and humidifier may be recirculated through the engine. Apparatus for production of the humidified gas, Fig. 4, which may be mounted on a vehicle comprises an engine 16, a reheat section 17 connected to a pipe section 18 serving as a humidifier, a cooling jacket 19, and spray nozzles 23.
Patent GB-772657-A (GB)
Title: Improvements in or relating to steroids
IPC: C07J75/00
Filed: 1953-10-19
Abstract: The 14,15-double bond of an 8,14-nuclear unsaturated 11-keto steroid compound is selectively reduced by contacting said steroid compound with hydrogen in the presence of W-7 Raney nickel and an alkaline material having an ionization constant greater than about 10-12.  As alkaline material there may be used an alkali metal (e.g. sodium, potassium or lithium) hydroxide.  The reaction may be effected in an organic solvent. As starting steroids there may be used ergosta-8,14,22 triene-11-one-3b -ol or a 3 ester thereof and ergosta-6,8,14,22-tetraene-11-one-3b -ol or a 3-ester thereof. Specification 767,180 is referred to.
Patent GB-464436-A (GB)
Title: Improvements in or relating to the pressing or moulding of sheet material
IPC: B29C53/04
Filed: 1935-10-18
Abstract: 464,436. Moulding sheet material. HUTCHINSON, W. V. Oct. 18, 1935, Nos. 28858/35, 32504/35, and 24872/36. [Class 87 (ii)] Sheet material, such as cellulose acetate, that can be softened by heat or other treatment, is moulded to form bowed, bulged, or convexed parts for use on aircraft &c., by attaching the material to a frame having one or more yielding parts and drawing it over a former. In the form shown in Fig. 1, the sheet material is secured at the points 9, 10 of a frame 1 having members 5, 7 hinged at the points 6, 8, 5b. Weights 13 are applied to the corners of the frame and to the pivoted members 5, 7. The frame 1 is placed over the former 2, and the material is heated by a hood supplied with gas burners and lowered over the frame and he former. The pivoted members 5, 7 allow of the flow of material necessitated by the sharply curved parts 4 of the former 2. In a modification two triangular parts are hinged to the frame for producing articles steeply curved at each end. In some cases, the sheet is held in the frame so as to yield in two directions, and is clamped in blocks 21, Fig. 8, slidable in a bar 19 pivoted to the frame 1. In another form, the frame is provided at the part where a large flow of material takes place during moulding with a clamp mounted on a bolt pivoted in the frame. In the form shown in Fig. 7, the sheet material 3 is secured at 25 to a bar 26 at the edge of the former 28, to clamps 31 carrying weights, and to a clamp 31a acted upon by a weighted cord 33 passing over a pulley 32 and secured at Y to the support for the former 28.