baber/WOPTO huggingface dataset:
Patent GB-1220484-A (GB)
Title: Phenolated polymers of isoprene
Inventor: SOLDATOS ANTHONY CONSTANTINE
IPC: C08C19/00
Filed: 1968-02-07
Abstract: 1,220,484. Phenolated isoprene polymers. UNION CARBIDE CORP. 7 Feb., 1968 [7 Feb., 1967], No. 6073/68. Heading C3P. Thiophenol or a phenol of formula R(OH) n,  where R is a C 18-31  substituted or unsubstituted aromatic radical and n is 1, 2, or 3 is reacted with a homopolymer of isoprene, a copolymer of isoprene containing at least 70% by weight of isoprene, or a halogenated or hydrogenated polymer thereof, said isoprene polymer having an internal unsaturation of less than 50% based on the total unsaturation. Exemplified is polyisoprene of only 5% internal unsaturation phenolated by p-dodecyl phenol and thiophenol.
Patent GB-452654-A (GB)
Title: Improvements in apparatus for filling or depositing material in pie casings or the like
IPC: A21C15/00
Filed: 1935-02-26
Abstract: 452,654. Filling pie casings &c. CHRISTIANSEN, E., and ERICSSON, C. O., Food Machinery Works, Lifford Lane, Kings Norton, Birmingham. Feb. 26, 1935, No. 6097. [Class 28 (i)] Apparatus for filling or depositing material into pie or like casings in measured quantities comprises a delivery nozzle 18 which is raised substantially vertically after each discharge so that the material deposited is separated from the material remaining in the nozzle before the pie casing is moved. The apparatus may form part of a pie-moulding machine having an intermittently rotating table 1, mould platforms 2 and a moulding tool 3. The material may be fed from a hopper 5 by a feed valve 7 to a piston chamber 9 where it is forced by a piston 10 to a delivery tube 11 terminating in the nozzle 18. The tube 11 has a swivel connection to the chamber 9 by means of an elbow tube 16 rotatably mounted in a bearing sleeve having a tubular extension secured by a nut 13 to the chamber 9. The lowest position of the tube 11 is controlled by a hook-shaped stop 19 adjustably mounted on the main frame of the machine. The tube 11 is sharply raised after each discharge by an arm 23 connected to the reciprocating tool 3. The arrangement is such that the tube 11 reaches its lowest position before the tool and time is allowed for the discharge before lifting the tube. The tool may have a quick return action to give a quick rise to the nozzle.
Patent GB-1170033-A (GB)
Title: Preparation of thiolhydroxamate carbamates
IPC: A01N/
Filed: 1968-02-07
Abstract: 1,170,033. Insecticides containing thiolhydroxamate carbamates. E.I. DU PONT DE NEMOURS & CO. 7 Feb., 1968 [9 Feb., 1967], No. 6147/68. Heading A5E. [Also in Division C2] Thiolhydroxamate carbamates of the formula: wherein R 1  is methyl, ethyl, methylthiomethyl, or methoxymethyl, R 2  is methyl, ethyl, or propyl, and R 3  is hydrogen, or methyl, are useful as insecticides. Reference has been directed by the Comptroller to Specification 1,090,986.
Patent GB-1302901-A (GB)
IPC: B41B17/34
Filed: 1970-02-10
Abstract: 1302901 Photographic type - composing apparatus COMPUGRAPHIC CORP 10 Feb 1970 [5 March 1969] 6263/70 Heading B6W A changeable matrix strip 42 (Figs. 4, 5 and 6) is fastened to a drum 36 which is rotated about an axis 46 parallel to the composed line by a motor 52 and belt and pulley system 53 to 56. The characters are spaced by stepping a projection lens 108 and the stepping is controlled by means to provide justified text, which ineludes changeable gears 132 and 124 to match the font requirements of the matrix strip. Selection of the characters moving in a direction perpendicular to the base line with lamps 38, provides for adjustable vertical character alignment control.
Patent GB-124834-A (GB)
Title: Improvements in or relating to Aircraft.
IPC: F41A19/05
Filed: 1916-05-02
Abstract: 124,834. Vickers, Ltd., Challenger, G. H., and Savage, H. A. May 2, 1916. Fire between aircraft propeller blades, controlling and synchronizing. - Relates to the fire-controlling cams described in Specification 124,486, and consists in making the projection B<2> of the cam B<1> extend over a certain part of the circumference to keep the gun firing for a certain safe period between two successive blades, instead of firing only single shots between the blades.
Patent GB-129256-A (GB)
Title: Improvements in Sparking Plugs for Internal Combustion Engines.
Inventor: BOUR LOUIS MARIE JOSEPH SENEQU
IPC: H01T13/36
Filed: 1919-03-13
Abstract: 129,256. Bour, L. M. J. S. June 29, 1918, [Convention date]. Sparking-plugs.-The central electrode and the insulator each consist of two portions, the two parts of the insulator having adjacent recesses containing a head or flange on the inner portion c of the electrode, such flange having an upstanding non-circular projection engaging a corresponding recess in a nut d threaded on the upper part e of the electrode. A portion of the outer end of the member e is not threaded and acts as an abutment for a nut g, the rotation of which first presses the flange on the inner part of the electrode on its seat and then causes the nut d to rise against its seat in the outer part of the insulation. A locking-nut g<1> is provided. The terminal f is formed by cutting the casing and forcing in the end portion, as shown in Fig. 2.
Patent GB-1503612-A (GB)
Title: Arrangements for keying video signals
IPC: H04N9/75
Filed: 1975-02-14
Abstract: 1503612 Television SONEX INTERNATIONAL CORP 14 Feb 1975 [19 Feb 1974] 6396/75 Heading H4F  In order to eliminate "blue halos" and other undesirable effects in a chroma keying system, a video source selection signal, for selecting a foreground or background representing video signal, is derived by averaging intensities of the component colour signals emanating from a foreground camera 10, Fig. 1. The averaged signal is compared with a reference level signal. When it is desired to insert a background scene 44 the respective areas 40 of the foreground scene are illuminated 42 to an average intensity level greater than the reference level. This is detected by a comparator operable to actuate a video switch for selecting as output of the system, signals from a background camera 11. Alternatively the comparator may be responsive to an average intensity level below the reference level.
Patent GB-1488577-A (GB)
Title: Safety coupling for a platen press
IPC: F16D7/04
Filed: 1975-02-14
Abstract: 1488577 Slip clutches; mounting clutch elements on hubs J BOBST & FILS SA 14 Feb 1975 [28 May 1974] 6417/75 Headings F2C and F2U An overload slip clutch for a platen press comprises a driving disc 4 carrying segments 9 having radial V-shaped grooves which are engaged by complimentary surfaces on pins 12 carried by a ring 13 that is axially movable relative to a driven shaft 30 and is biased by springs 14, 15 towards the driving disc 4. The ring 13 is connected to the driven shaft 30 by tangential leaf springs 23 secured to pins 26, 28 respectively fast with the ring 13 and a casing 20 fast with the driven shaft 30. The torque at which slip occurs may be adjusted by a screw 16 which positions a spring reaction plate 21. When the clutch disengages the ring 13 moves a rod 41 axially to actuate a switch and stop the driving motor.
Patent GB-1447024-A (GB)
Title: Puzzle solution cast double base propellants
IPC: A63F9/10
Filed: 1975-02-14
Abstract: 1447024 Puzzle H HANSMANN 14 Feb 1975 [25 Feb 1974] 6430/75 Heading A6H A puzzle comprises a number of rings of rectangular cross-section and all of equal width and diameter, their top and/or bottom faces being formed with grooves wider than the rings so that they can be fitted together to form a plane figure, and some of the rings having a through cut wider than the rings. The ring 5 acts to lock the assembly together.
Patent GB-642794-A (GB)
Title: Improvements in electric circuit breakers having arc-extinguishing means
IPC: H01H33/75
Filed: 1948-03-01
Abstract: 642,794. Fluid-blast switches. LANGE, E., and SEGAL, M. March 1, 1948, No. 6449. [Class 38(v)] The arc produced on separation of the contacts of a circuit-breaker is extinguished by one or more fluid blasts produced by the arc itself, the arc being formed in an arc chamber surrounded by a counter-pressure chamber, the two chambers being connected by apertures containing the arc roots. When an arc is. formed between contacts 3, 4, the pressure in chamber 1 increases and forces a blast of fluid, e.g. powder, liquid or gas, through the hollow contact 3 into the counter-pressure chamber 2. If a light current is being interrupted, the pressure increase is insuffi-- cient to raise a spring-urged cover 5, and the fluid passes through openings 8 therein, so that the pressure in chamber 2 is reduced, thereby creating a pressure difference between chambers 1, 2 which prolongs the blast until the arc is extinguished. With a heavy current, however, the cover 5 is lifted to increase the volume of chamber 2 and so decrease the pressure therein. In a modification, Fig. 2, the end 29 of contact 18 is hollow and has slits 19 therein so that the fluid also escapes from arcing chamber 16 through the contact 18 and apertures 23 in a tube 22, thereby providing a double blast. In a further modification, Fig. 4 (not shown), the arcing chamber is extended to form a guide for cover 5.
Patent GB-1030185-A (GB)
Title: Piezoelectric ceramic composition
IPC: C04B35/50
Filed: 1965-02-15
Abstract: A piezo-electric ceramic material of formula Pb (2rxTiySn2)O3 wherein x, y, z have values 0.00-0.90, 9.10-0.60, 0.00-0.65 respectively with x + y + z = 1 and wherein 0-23% of the lead is replaced by calcium, strontium, barium or a mixture thereof, also contains 0.01-1.0% by weight rhodium sequioxide Rh2O3 or an equivalent amount of another rhodium compound.
Patent GB-1171984-A (GB)
Title: Telephone Exchange
IPC: H04Q3/62
Filed: 1967-02-10
Abstract: 1,171,984. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 10 Feb., 1967 [11 Feb., 1966], No. 6516/67. Heading H4K. In a PABX for a large hotel or hospital where certain service extensions, e.g. chamber maids or nurses may be accessed by extensions on a particular floor, a connection between a caller and a service extension is completed in response, to the dialling of a single digit-which denotes service type-and to the " identity " of the caller's floor-which denotes the particular extensions providing service for this floor. The subscribers TS11-TSRX are grouped according to floor Gr1-GrX and the service extensions STS11-TS2X are grouped according to type, the penultimate digits 1 and 2 indicating type and the final digits 1-X indicating the floor served. A caller, e.g. TSRX gains access to a " 2 " type service by dialling 2, the particular " 2 " type extension serving his floor, e.g. STS2X then being seized in response to floor identity data transmitted via an identifier Id to the marker M. The switching network may comprise reed-relay or cross-bar switches.
Patent GB-537904-A (GB)
Title: Improvements relating to gas producers for use with internal combustion engines
IPC: B04C5/00
Filed: 1940-04-11
Abstract: 537,904. Gas-producer plant; cyclone separators. VAUXHALL MOTORS, Ltd., TAUB, A., FOSTER, D. B., and BIRABEN, H. E. April 11, 1940, No. 6543. [Class 55 (i)] [Also in Group II] Air for a gas producer c is drawn through a Venturi pipe k and is moistened by a water jet fed from a float-chamber m, and the moistened air is heated by passage through a jacket q fitted with baffles r and surrounding a cyclone.dust extractor d through which pass the hot gases leaving the producer through an outlet n. The heated moist air passes by a pipe s to the producer. The gases from the cyclone pass through a cooling pipe e to two filters f, g and through a pipe h leading to an internal combustion engine. The installation is mounted on a pair of longitudinal bearers a with a cross bracket b. The producer gas passes by a pipe n tangentially into the cyclone, and out through the upstanding end of the cooling pipe e, the dust falling into a collecting chamber p. In a modification, Fig. 4, a double cyclone with two cleaning chambers d', d<SP>2</SP> is provided, the dusty gases entering at n.
Patent GB-898009-A (GB)
Title: Strip structure
IPC: E06B7/23
Filed: 1960-02-26
Abstract: 898,009. Trim strips. STANDARD PRODUCTS CO. Feb. 26, 1960 [Aug. 25, 1959], No. 6784/60. Classes 20(3) and 20(4) [Also in Groups VIII, XXV and XXXVI] A channel-shaped clip for trimming, sealing &c. strips comprises a plurality of elements 11, 12, Fig. 4, arranged in zig-zag formation with the end portions of adjacent elements in overlapping relation, a projection 16 being carried by one of the end portions of each pair of overlapping end portions. Each pair of overlapping end portions may be interlocked by causing the projection of the one end portion to enter a passageway or aperture in the other end portion and in a preferred arrangement, Fig. 3, a projection 16 formed on the one end portion enters an aperture created by the formation on the other end portion of a second projection 18 which in use reinforces the projection 16. The projection may be made harder than the remainder of the strip, for example by chromium plating the projection. The projections may face inwardly or outwardly of the channel, or some may face inwardly whilst others face outwardly. The projections may face towards or away from the base of the channel or in the longitudinal direction of the channel. The projections may be of frusto-conical form, Fig. 21, or may comprise bent over portions 64, Fig. 24, of the outer parts of the overlapping portions. The elements may be spaced from each other between the overlapping end portions as in Fig. 28 or may be extended on one side as at 72, Fig. 26, to receive a sealing or bumper member 73. The elements may be formed from a single strip as in Figs. 3 and 4, or may comprise separate elements as in Fig. 30, maintained in position by the interlocking effect of the projections 90.
Patent GB-715362-A (GB)
Title: Improvements in or relating to antimicrobial agent
Filed: 1952-03-17
Abstract: An antibiotic P.A.94 is produced by cultivating a strain of Streptomyces lavendulae, No. 8197-20, which is described, in an aqueous nutrient-containing solution under submerged aerobic conditions at a temperature of 25-30 DEG  C. for 2 to 4 days and then recovering the antibiotic from the fermentation broth.  Specified nutrients are carbohydrates such as sugars, starch and glycerol; organic nitrogen such as soyabean meal, cottonseed meal, alfalfa meal, corn steep liquor, hydrolyzates of casein and other proteins; growth substances such as distillers' solubles, yeast extract and Vitamin B concentrates; mineral salts such as sodium chloride, potassium phosphate, sodium nitrate and calcium carbonate.  After the removal of the mycelium by filtration and, if desired, a preliminary treatment with activated carbon at an acid, e.g. pH 2.0, or alkaline, e.g. pH 10.0, pH the antibiotic is isolated from the culture liquid by (a) adsorption on acidic cationic exchange resins, preferably at a pH 3.0-7.0; or (b) solvent extraction by water-immiscible alcohols, e.g. butanol and benzyl alcohol after the addition to the culture liquid of a strong organic acid such as p-toluenesulphonic acid.  The resins used in the adsorption step are phenol formaldehyde resins containing sulphonic acid groups introduced by adding a sulphite during formation of the resin, e.g. Amberlite IR 120 (Registered Trade Mark); or they are sulphonated hydrocarbon polymers or polymers prepared from sulphonated phenols and formaldehyde.  The antibiotic is eluted from the resin by means of dilute aqueous alkali, e.g. 0.5-3 per cent aqueous ammonia; sodium hydroxide, potassium hydroxide and strong organic bases.  The antibiotic recovered from the eluate may be further purified by dissolving in water or aqueous methanol and passing down a column of a basic anion-exchange resin, alumina, silica gel or other metallic oxide. As a further purification step (a) acetone may be added to a methanol solution to precipitate impurities; (b) antibiotic may be precipitated by the addition of ethanol to aqueous solution; and (c) a carbon treatment may be given at any stage.  The antibiotic P.A.94 is an amphoteric substance effective in inhibiting the growth of mycobacteria.  It is soluble in water and methanol.  It contains C, H, O, N in the proportions C = 34.8 per cent, H = 5.8 per cent, N = 26.9 per cent and 0 = 32.5 per cent. [a ]D25 = 640 (methanol).  It exhibits a characteristic infrared absorption spectrum.
Patent GB-691033-A (GB)
Title: Improvements in mining machines
IPC: E21C35/10
Filed: 1946-05-15
Abstract: 691,033. Planers. MAVOR & COULSON, Ltd., and GULLICK, E. D. M. March 6, 1948 [May 15, 1946; Jan. 8, 1947]. Nos. 7019/48 [Divided out of 691,031], and 710/47. Class 68(i) A mining-machine, of the type having wedge-like cutting means adapted to be thrust into the coal seam by direct pressure applied behind or lengthwise of the face, is dragged along the face by rope haulage 14 connected to it near said cutting means 11 and has a rear wedge-like cutting means projecting laterally beyond the plane of the front wedge-like cutting means to impose on the machine a drag, the effect of which is to hold the rear of the machine against the face, said rear cutting means projecting sufficiently to cut at a depth about equal to the depth at which the front cutting means is designed to cut. The rear cutting means may comprise a narrow forwardly inclined hook-like cutter 26 which divides the coal face at an intermediate level, or the machine may be of the type which is disclosed in Specification 691,031.
Patent GB-267559-A (GB)
Title: Method of supplying fuel to heavy oil motors
IPC: F02B19/02
Filed: 1927-03-14
Abstract: 267,559. LagardÞre. M. P. A. March 15, 1926, [Convention date]. Cylinders receiving liquid fuel; spray carburettors. - In two- or four-stroke heavy-oil engines of the type in which a rich mixture of fuel fog or mist with a small quantity of air produced outside the engine cylinder is supplied at low pressure to a chamber which is placed in communication with the working cylinder towards the end of an air-compressing stroke, the chamber is arranged within the head of the working cylinder. By this means it is easier to secure precise adjustment of the quantity of combustible admitted particularly when the quantity is small. In the two-stroke engine - shown, the scavenging air is compressed in the crank-chamber 1, provided with inlet valves 1<a>, and is transferred to the cylinder through a passage 2a and ports opposite to a deflecting surface on the piston 3 at the end of its outstroke. The exhaust ports ar shown at 4. The head of - the cylinder contains the chamber 6 adapted to be placed in communication with the interior of the cylinder by the opening of a valve 8 actuated by a cam 10<a> through a lever 9. Another valve 11 actuated by a cam 12a serves to admit the rich mixture of fuel fog or mist with air which is produced by forcing air through a nozzle 23 over the outlet of a nozzle 19 through which fuel is forced from a pipe 19<a> the quantity being controlled by a needle valve on a lever 20. An auxiliary pump 13 compresses air into a reservoir 14 whence pipes 15, 22 lead respectively to the fuel tank and to the air nozzle 23. The fuel tank is in two portions connected by cocks 17, 18 which permits of re-filling during working. A pipe 24 conducts the rich mixture to the valve 11. At the end of a working stroke, the valve 8 is closed, and shortly after this the valve 11 is opened to fill the chamber 6. When the compression pressure, due to the return of the piston 3, exceeds that around the valve 11, the valve 8 is opened and is closed again when the pressure in chamber 6 reaches or nearly reaches that necessary for self-ignition. Towards the end of the compression stroke, the valve 8 opens and the charge is injected into the working cylinder. The valve 8 may be kept closed during the whole of the compression stroke. The chamber 6 is provided with a liner 7 to maintain its temperature, and may also contain a heated resistance or a sparking plug to create an ignition point. The mist or fog may be produced in a carburetter with which is combined a pump either in front of the carburettor, or between the carburettor and the engine cylinder.
Patent GB-525969-A (GB)
Title: Improvements in or relating to synchronised time base circuits
IPC: H03K4/16
Filed: 1939-03-03
Abstract: 525,969. Valve generating circuits. KOLSTERBRANDES, Ltd., and SMYTH, C. N. March 3, 1939, No. 7087. [Class 40 (v)] The slow-stroke circuit of a back-coupled relaxation-oscillator has an invariable time-constant, but the voltage at which free discharge of the condenser takes place is made variable. As shown the condenser C, is charged slowly over invariable resistance R 1'  and is discharged when synchronizing signals are received over a hard valve V. The anode voltage of valve V is adjustable by potentiometer R 3 , R 4  so that the frequency and amplitude of free oscillation can be varied, but this alteration affects neither the frequency nor the amplitude of the synchronized oscillations. Amplitude of the output oscillations is controlled by the provision of a variable gain amplifier or variable attenuator.
Patent GB-536191-A (GB)
Title: Renewable sleeve assembly for rotary pump shafts
IPC: F16J15/18
Filed: 1940-04-20
Abstract: 536,191. Securing wear sleeves on shafts. WEIR, Ltd., G. & J., and HILLIER, H. April 20, 1940, No. 7157. [Class 80 (ii)] A renewable sleeve assembly for a rotary pump shaft and stuffing-box comprises a split sleeve 12 maintained on the shaft by continuous sleeves 8, 10 whicn grip the ends of the split sleeve. The sleeves 8, 10, 12 are pressed together axially by a shoulder 7 on the shaft and by a nut 14 and locknut 15. The meeting faces 13 of the split sleeve may be stepped as shown; the engaging ends of the sleeves may be coned.
Patent GB-272308-A (GB)
Title: Improvement in glass article and method and apparatus for producing the same
IPC: C03B33/085
Filed: 1926-03-15
Abstract: 272,308. Marks, E. C. R., (Libbey Glass Manufacturing Co.). March 15, 1926. Atmospheric gas burners; burners, applications of.-A burner for severing excess glass from an article A comprises an annular casting 80 having an annular channel 81 on its upper surface. A cover casting 83 is bolted to the casting 80, and a comb 82 is clamped between them. The teeth of the comb project beyond the inner surfaces of the castings, and a mixture of gas and oxygen or air, fed to the channel 81 by a pipe 85, issues in jets from the spaces between the teeth of the comb.
Patent GB-1073202-A (GB)
Title: Surge cushioning means for high pressure hydraulic system
IPC: F15B1/16
Filed: 1966-02-18
Abstract: 1,073,202. Hydraulic accumulators. W.J. BLEASDALE. Feb. 18, 1966 [March 10, 1965], No. 7203/66. Heading F1P. In an hydraulic accumulator, Fig. 1 (not shown) comprising a tubular diaphragm (36) separating an outer annular gas-filled chamber (34) from pressure liquid which passes to the inside of the diaphragm through slots (64) in an inner support tube (60), the slots (64) open out into a groove or grooves (62) formed in the outer peripheral surface of the support tube and the groove or grooves (62) is/are fitted with a radially outwardly yieldable member or members (70). The member (70) may be in the form of a helical spring of circular, square or rectangular section having its coils disposed in the complementary helical groove (62) in the tube (60). Alternatively, Fig. 5 (not shown) the members (70) may be straight rods disposed in longitudinal grooves, or rings disposed in individual parallel circumferential grooves. The member(s) (70) coact with the groove(s) to provide a variable throttle for liquid passing through the slots (64), the throttling decreasing during radially outward flow through the slots due to the members (70) tending to move out of the grooves and increasing for flow in the opposite direction.