baber/WOPTO huggingface dataset:
Patent GB-1255363-A (GB)
Title: Cut off blade
Inventor: SHEPHARD DONALD
IPC: B23B27/08
Filed: 1969-09-15
Abstract: 1,255,363. Parting-off tools. D. SHEPHARD. 15 Sept., 1969, No. 45383/69. Heading B3T. A parting-off tool comprises an elongate body portion 13 with an integral head portion 14 extending along an edge of the body, outer and inner transverse cutting edges 20 and 24 respectively located one on each side of the longitudinal plane of symmetry of the tool, each side of the head being provided with a concave face 15, cutting corners 21, 25 being formed between the faces 15 and 26 and the cutting edges 20 and 24 respectively. A depressed portion 23 is disposed between the inner cutting edges 24 the maximum depth of this portion being in a plane below the plane passing through the outer cutting corners and below the lowest portion of the outer cutting edges. The depressed portion may be arcuate, flat or formed by a pair of flat inwardly and downwardly converging surfaces.
Patent GB-1435610-A (GB)
Title: Vacuum circuit interruptors
IPC: H01H33/66
Filed: 1973-09-28
Abstract: 1435610 Vacuum switches HAZEMEIJER BV 28 Sept 1973 [2 Oct 1972] 45523/73 Heading H1N A conventionally arranged vacuum switch unit having generally coaxially aligned components comprises a metal cylinder 1 and metal closure means 1<SP>1</SP>, 1<SP>11</SP> defining the confines of a vacuum envelope within which two cylindrical insulators 2, 3 project inwardly and towards one another along the central longitudinal axis of the cylinder. The external surfaces of the cylinder and closure means are surrounded by an insulating, elastic, rubber sheath 17 which is formed in two halves which overlap and each of which has respective integral sleeves 15, 16 which are interposed to form a vacuum-tight seal between the respective insulators 2, 3 and insulating stubs 19, 20. Insulating stub 20 is moulded round a connection rod 22 which is bolted to a fixed contact 5, 7 supported by the insulator 3 and stub 19 is hollow to permit a connection rod 21 to be movably attached to a contact 4, 6 supported on the insulator 2 by a bellows 9. Screen members 11-14 are arranged within the vacuum space.
Patent GB-458365-A (GB)
Abstract: 458,365. Safety cut - off valves. ARQUINT, H., Sursee, Argovie, Switzerland, and KONSTRUKTIONSBURO KIESEL GES., 64, Goethestrasse, Munich, Germany. June 14, 1935, No. 17252. Convention date, June 15, 1934. [Class 135] In a safety cut-off valve for gas burners of the kind described in Specifications 408,842 and 415,667 in which a thermally responsive tubular member 25, through which gas passes to burn as a pilot flame 27 at the end adjacent the main burner, controls a main gas valve 10 through a lever 34, the tubular member is fixed to the valve chest 1 at its inner end whilst its outer end is fixed to a relatively inexpansible rod 24 passing into the valve chest so as to control the lever 34. The valve chest has a main inlet 6 leading to a recess containing a plug valve 4, and a chamber 5 containing the lever 34. A nozzle 2 communicates with the chamber 5 which is closed by a cap 36. A byepass gas supply passes through a passage 8, an annular groove 14 and a longitudinal groove 15 both in the plug 4, and a passage 16 into a chamber 17 closed by a cap 18. A tubular portion of the rod 24 with a hole 23 at one end and a calibrated nozzle 19 at the other passes into the chamber 17. The lift valve 10 is guided by its spindle in the plug 4 and is non- rotatably connected thereto by a pin 13 engaging a slot 12, so as to be ground on its seat each time the plug 4 is operated. The operative relation of the lever 34 and the valve 10 is controlled by a threaded rod 11 adjustably engaging a split resilient boss 7 on the valve. The valve 10 is pressed to its seat by a spring 9 whilst a bifurcated spring 28 holds the plug 4 in its recess. The rotation of the plug is limited by a pin working in an arcuate recess. The pin may be forced past a spring catch near one end of the recess to cut off the byepass supply after the main supply A sleeve 21 on the rod 24 carries a split ring 20 in frictional engagement with a sleeve 22 contacting a nose on the lever 34, the movement of the sleeve 22 .with the rod 24 being positively limited by the cap 18 and the valve chest. In the form shown in Fig. 2, the sleeve 22<a> is secured on the rod 24. The lever 34 may be exchanged for one in which the nose is nearer or further from the pivot 33.
Patent GB-1267288-A (GB)
Title: 2,4-dioxo-2,3- dihydro-4h-1,3-benzoxazinothiono-phosphonic acid esters, process for their preparation, and their use as insecticides and acaricides
Inventor: LORENZ WALTER
IPC: C07F9/6533
Filed: 1970-10-02
Abstract: 1,267,288. Thionophosphonic acid esters. FARBENFABRIKEN BAYER A.G. 2 Oct., 1970 [7 Oct., 1969], No. 47012/70. Heading C2P. Novel compounds of the general formula wherein R and R 1  are the same or different branched or straight chain C 1 -C 4  alkyl radicals are obtained by reacting a compound of the formula with Hal.P(S)(OR)(R 1 ) wherein Hal is halogen, e.g. Cl, the compound II being either reacted in the form of its alkali metal, alkaline earth metal or ammonium salt, or in the presence of an acid binding agent. The reaction may be carried out in a solvent or diluent. The products have insecticidal and acaricidal properties and for this purpose may be used in admixture with liquid or solid diluents or carriers and optionally surface active agents, e.g. in the form of solutions, emulsions, suspensions, powders, pastes, dusting agents, or granulates.
Patent GB-1463305-A (GB)
Title: Dental instrument holder
IPC: A61C5/02
Filed: 1973-10-09
Abstract: 1463305 Measuring and indicating lengths KURER RESEARCH & DEVELOPMENT Ltd 16 Sept 1974 [9 Oct 1973] 47071/73 Heading G1M Dental root canal reamers 15, Figs. 1 and 2, rest their tips on a base-plate 11 and pass through holes 13a in a holding plate 13 vertically screw adjustable on a tubular column 12 against a scale 16. The length to be reamed is first determined by reaming and checking depth by x-rays, and then this datum length is marked on a reamer by positioning a disc 15a of plastics or rubber. The marked reamer is then placed in the plate 13 which is height adjusted from the base 11 so that the tip of the reamer just touches the base-plate whilst its disc 15a is supported by the holding plate 13. The other reamers, which may be of different diameters, are then placed also in the plate 13 and their discs 15a adjusted to give them all the same datum probing length. In Fig. 3 (not shown) the holding plate is supported from the base-plate by a spring (35) and is locked at the datum height to the vertical scaled column by a clamping screw passing radially through a boss on the holding plate into a groove in the column.
Patent GB-1242698-A (GB)
Title: Improvements in or relating to coating compositions formed from copolymers of alkenyl aromatic monomers and acrylic monomers
IPC: C09D125/08
Filed: 1968-10-04
Abstract: 1,242,698. Alkenyl aromatic copolymer emulsions. KOPPERS CO. Inc. 4 Oct., 1968 [6 Oct., 1967], No. 47274/68. Heading C3P. [Also in Division. C2] A coating composition comprises an aq. emulsion of a copolymer of an alkenyl aromatic monomer and at least one of acrylic. acid, methacrylic acid, an ester of acrylic or methacrylic acid having up to 8 C atoms in the alcohol moiety, acrylonitrile or methacrylonitrile, a plasticizer which comprises a trixylenyl phosphate ester of formula and an organic water-immiscible solvent for the phosphate ester. The copolymer may be formed from styrene, acrylonitrile and acrylic acid, or styrene, 2-ethylhexylacrylate and itaconic acid. The ester may be tris-2,6-dimethylphenyl phosphate ester and another plasticizer, e.g. dibutyl phthalate or trieresyl phosphate, may also be used. In Example (III) the copolymer was dissolved in an aq. ammonium hydroxide solution and mixed with the plasticizers dissolved in a mixture of aromatic petroleum hydrocarbons.
Patent GB-1485017-A (GB)
Title: Apparatus comprising a particle growth-promoting device
IPC: B01D21/01
Filed: 1974-11-01
Abstract: 1485017 Coalescing and settling particles PIELKENROOD-VINITEX BV 1 Nov 1974 [19 Nov 1973] 47315/74 Heading BID An apparatus for separating particles from a liquid suspension comprises a particle growth -promoting device comprising a duct formed by at least one tube, upstream of a settling device. In use, wall friction in the or each tube causes differences in the velocity of the particles in the suspension flowing through the or each tube so that coalescence of the particles occurs. The flow velocity of the suspension at any point in the or each tube is such that no separation of the particles takes place in the or each tube and is lower than the velocity at which coalesced particles would be disrupted by shearing action as a consequence of the velocity gradients in the vicinity of that point. As shown the growth-promoting device comprises tubes 1 of increasing diameter, interconnected by bends 2. The duct may comprise a rigid or flexible tube, a helically wound tube or a S-shaped tube. The tube may be corrugated. A slidable core (e.g. corrugated may be positioned in the duct. The core may comprise a stack of balls on a rod, alternate balls being of different diameter. The duct may comprise two sets of parallel tubes, the sets being in series and the second set comprising a greater number of tubes than the first set. The tubes of the sets may incorporate valves.
Patent GB-1135987-A (GB)
Title: Attenuated live rubella virus vaccine and method of production
Inventor: HUYGELEN CONSTANT
IPC: A61K39/20
Filed: 1966-10-21
Abstract: 1,135,987. Rubella vaccine; attenuating viruses. RECHERCHE ET INDUSTRIE THERAPEUTIQUES. 21 Oct., 1966, No. 47399/66. Heading A5B. Virulent Rubella virus is attenuated for use in a vaccine against Rubella, by subjecting it to at least fifteen serial passages on primary rabbit kidney tissue cultures. Preferably between 20 and 60 such passages are employed at a temperature of up to 36‹C, each passage being of from 3 to 6 days' duration. The virus may be obtained from throat swabs, urine or gargle samples from a clinical case of Rubella, and may be stored frozen, or inoculated into a suitable tissue culture, e.g. primary African green monkey kidney monolayers for isolation prior to attenuation. The rabbit kidney cell cultures are preferably from rabbits not more than 3 weeks old. After the final passage, the cells are separated from the supernatant fluid by filtration or centrifugation, leaving the virus in the medium. After titration of the virus strength and safety testing, the virus preparation is either freeze dried or stored frozen at -60‹C, and may be used as a vaccine by subcutaneous or intramuscular administration.
Patent GB-1001015-A (GB)
Title: Means for storing in a trench formed in an aircraft runway arresting devices for aircraft
IPC: B64F1/02
Filed: 1963-12-02
Abstract: 1,001,015. Arresting gear for aircraft. P. B. FONDER, and K. O. T. WALLANDER. Dec. 2, 1963 [March 16, 1963], No. 47440/63. Heading B7G. Means for storing in a trench formed in an aircraft runway collapsed arresting devices for aircraft is characterized in that the trench is closed able by one or more covers which a turntable to and from the opening of the trench about centres of rotation located under said opening. An arresting net across a runway and when is suspporred by masts, 2 and when collapsed is stored wich in a trench 4 opening of which is closed by covers 6 mounted for rotation on a shaft 10 by means of arms 8 and sleeves 9. Each cover is held in closed position by a caton 11 is retatable about a pivot 12 so that a near portion 13 engages a pin 14 under the action of a toggle spring 16. Raising of the masts 1, 2 causes the net cables to engage catches 11 to free pins 14 and pivot arms 8, assisted by springs 20, to clear the trench openings to permit full erection of the net. The arms 8 may be rigidly attached to shaft 10 which may be rotated manually or by a motor.
Patent GB-971222-A (GB)
Title: Gas turbine power plant
Inventor: KEENAN JOHN GREGORY
IPC: F02K3/075
Filed: 1962-12-17
Abstract: 971,222. Gas turbine jet engines; ram jet engines. ROLLS-ROYCE Ltd. Dec. 17, 1962, No. 47628/62. Heading F1J. A gas turbine jet engine comprises an air intake passage, compressor means, main combustion equipment, turbine means, reheat combustion equipment and an exhaust passage. A supplementary air duct communicates with the air intake passage and is adapted to receive ram air therefrom, the supplementary air duct by-passing the compressor means, primary combustion equipment, turbine means and reheat combustion equipment and communicating with the exhaust passage. A ram air duct communicates by way of valve means with the supplementary air duct, the valve means being settable in either open or closed positions whereby ram air flowing through the supplementary air duct is either directed into or prevented from entering the ram air duct, the ram air duct communicating with the main flow duct upstream of the reheat combustion equipment so as to be adapted to deliver ram air thereto, so that when the valve means is set in the open position and the primary combustion equipment is shut down, the power plant may be operated as a ram-jet engine. When the valve means is set in the closed position, the power plant may be operated as a gas turbine engine, the ram air passing through the supplementary air duct into the exhaust passage serving to control the expansion of the exhaust gases in the exhaust passage. The engine shown in Fig. 1 comprises a low pressure compressor 16 and a low pressure turbine 21 mounted on a common shaft 25, a high pressure compressor 18 and a high pressure turbine 20 mounted on a common shaft 26, main combustion equipment 19, reheat combustion equipment 22 and an exhaust passage 23 which terminates in a propulsion nozzle 24. The compressors 16 and 18 have inlet guide vanes 15 and 17 respectively, the vanes being adjustable by means of a ram 30 between either open or closed positions. The engine comprises also a supplementary air duct 13 through which ram air from the intake 12 may pass to the turbine exhaust passage 23, pivotable flap valves 31 being provided at the outlet of the duct 13 into the exhaust passage. A ram air duct 32 is also provided, communicating at its upstream end with the supplementary air duct 13 by way of openings controlled by flap valves 33, and at its downstream end with the exhaust passage 23 upstream of the reheat equipment 22 by way of openings controlled by flap valves 35. At speeds above Mach 2À6, the inlet guide vanes 15 and 17 are closed, the flap valves 33 and 35 are open and the flap valves 31 closed, the reheat combustion equipment being brought into operation so that the engine functions as a ram-jet engine. In a second embodiment, Fig. 2, the gas turbine engine is of the by-pass type, the by-pass passage 32a serving as the ram air duct. The by-pass passage discharges into the turbine exhaust passage 23a upstream of the reheat equipment 22a by way of shoots 37. Specification 971,221 is referred to.
Patent GB-1135998-A (GB)
Title: Polycarbonate electrets
Inventor: PERLMAN MARTIN MELVIN
IPC: H01B3/42
Filed: 1967-10-20
Abstract: 1,135,998. Polycarbonate electrets. NORTHERN ELECTRIC CO. Ltd. 20 Oct., 1967 [1 Nov., 1966], No. 47861/67. Heading C3R. [Also in Division H1] An electret comprises a polycyclic bisphenol polycarbonate which has a high volume resistivity and which has been permanently electrostatically polarized. Preferably the polymer chain has attached to it a norbornane ring which may be fixed to another ring. A film of the polymer, sandwiched between a pair of insulating plates, is placed between two electrodes and a potential applied at 120 C. for half an hour. While maintaining the field, the temperature is allowed to fall to room temperature, then the electrodes are removed.
Patent GB-1202035-A (GB)
Title: Process for the production of foil ribbon fabrics and apparatus for carrying out this process
IPC: D03D25/00
Filed: 1967-10-23
Abstract: 1,202,035. Weaving. CHEMIEFASER LENZING A.G. 23 Oct., 1967 (25 Oct., 1966; 8 June, 1967], No. 48050/67. Headings D1E and D1K. Fabric is woven from warp and weft consisting of strips slit from thermoplastic film which has been stretched longitudinally to 4-8 times its original length at a small gap between rollers running at different speeds. In the case of the warp, the stretched film is wound on a beam which is placed in a loom in place of a normal warp beam; the film is slit as it is drawn into the loom by a row of blades mounted in the position of the back rest. In the case of the weft, the film may be slit into strips which are collected on cheeses and rewound on to shuttle pins. Alternatively, for a shuttleless loom, a strip is cut from a rotating roll of film by a blade which moves radially inwards to cut successive slices from the roll, the end of the strip from one slice being automatically stuck to the beginning of the next.
Patent GB-1069464-A (GB)
Title: Improvements in or relating to clothes hangers
IPC: A47G25/40
Filed: 1963-12-05
Abstract: 1,069,464. Garment hangers. R. KAHN. Dec. 5, 1963 [Sept. 20, 1963], No. 48081/63. Heading A4U. A garment hanger has two identical arms 1 connected symmetrically by a pivot pin 2 which carries a hook 3 and the arms are urged into spaced apart position by rubber rings 4 held in recesses 5 to bear against the inside of the waist band of a garment or the hanger may be turned over to support the shoulders of a garment or to receive shoulder straps.
Patent GB-1488527-A (GB)
Title: Method of making a synthetic resin foam
IPC: C08J9/04
Filed: 1974-11-07
Abstract: 1488527 Resol/novolak foams CIBAGEIGY AG 7 Oct 1975 [7 Nov 1974] 48248/74 Headings C3C and C3R A synthetic resin foam is made by adding an aqueous solution of a rescorcinol-formaldehyde novolak and an acid which has a pKl of 2À2 or less to a phenol-formaldehyde resol, and a blowing agent to form an intimate mixture which is allowed to foam and harden. The acid may be hydrochloric, phosphoric, benzenesulphonic, o- or p-phenolsulphonic or toluene-psulphonic acid. In the examples mixtures of concentrated, aqueous solutions of resorcinol/ formaldehyde novolak and toluene- or phenolsulphonic acid, and optionally phosphoric acid, are added to phenol/formaldehyde resol, a trichlorotrifluoroethane and a surfactant viz. adducts of polyoxyethylene and nonylphenol, an alkyl aryl ether, castor oil or sorbitan monopalmitate, and the mixtures were stirred to form foams.
Patent GB-1495725-A (GB)
Title: Energy absorber or torque limiter
IPC: F16F1/14
Filed: 1974-11-08
Abstract: 1495725 Rotary dampers; slip clutches NEW ZEALAND INVENTIONS DEVELOPMENT AUTHORITY 8 Nov 1974 [21 Nov 1973] 48532/74 Headings F2C and F2S A rotary damper or slip clutch comprises a member 7, 13 rotatable through lead ice, aluminium or other crystalline substance 2, 12 in a housing 1. The crystalline substance is so chosen that it undergoes spontaneous recovery and recrystallization at the operating temperature of the damper or clutch.  Instead of the eccentric in a circular housing or the square in a square housing shown, the housing may be elliptical and contain a plug of lead keyed to a central shaft by splines. The device may be used to slow down a flywheel, or damp movements in tall buildings. The device may be single-acting (a ratchet allowing free movement in the opposite direction) or double-acting, and the motion may be continuous rotation, or oscillation. The greater the rate at which the lead (or other substance) is deformed, and the higher the temperature, the more rapidly the lead will recover and recrystallize. Interposed between the inner member and the lead plug is a bearing sleeve (17, Fig. 4, not shown) of beryllium bronze, and/or a lubricant such as a clay-filled grease or a mixture of silicone grease and colloidal graphite.
Patent GB-1530590-A (GB)
Title: Dartboard
IPC: F41J3/00
Filed: 1974-11-11
Abstract: 1530590 Toy spinning top R TAYLOR 6 Feb 1976 [11 Nov 1974] 48723/74 Heading A6S A dart board includes a dart receiving sheet of resin-bonded fibrous thermoplastics material. Preferably the sheet is formed of a needled material of 30% polypropylene 70% nylon bonded with acrylic resin, and is received into a recess of a backing structure of structured foam material e.g. polypropylene, formed preferably by a low pressure injection moulding process, and formed at the outer run with numbers in conventional fashion. The sheet is preferably rotatable in the recess, being selectively positionable in any of a number of angular positions defined by apertures in the sheet where through fixing bolts extend from the backing structure to engage a conventional wire frame facing the sheet and designating scoring areas thereon. The dart receiving sheet may be formed as a laminate having a first layer as described and backed by a layer or pad of harder material.
Patent GB-1240277-A (GB)
Title: Improvements in or relating to grass cutting machines
Inventor: MARTIN DERICK JOHN
IPC: A01D34/63
Filed: 1968-10-16
Abstract: 1,240,277. Grass cutting machine. QUALCAST Ltd. 8 Jan., 1970 [16 Oct., 1968], No. 48993/68. Heading A1F. A vertical axis rotating cutter grass cutting machine with stationary multidigital co-operating shear blade and grass collector with delivery shoot comprises a trochoidally shaped (in plan view) main frame 1 supported on wheels or rollers (2), an electric motor 4 having a drive shaft 5 extending vertically upwards and carrying a rotating cutter 7, which extends downwards over the motor and has six equally spaced blades 8 which have a leading cutting edge 10 and an angled trailing edge 11. The latter scoop and fan, in an air drought, the cut grass up a shoot 20 into a removable grass container 23. The adjustable height fixed blade 6 is mounted on the base of motor 4 and extends forward to form a plurality of radial fingers extending over an arc of not greater than 180 degrees, and in the preferred embodiment 120 degrees, which co-operate with leading edges 10 of blades 8 to give shear action when cutting grass. Frame 1 encloses cutter 7 over the non cutting part of the circle of rotation. The frame 1 and container 23 may be synthetic plastics material mouldings, light allow castings or pressings, and the whole machine is moved manually via handle 3; however the drive means from motor 4 could be used to drive one or more wheels 2 via a clutch.
Patent GB-1016755-A (GB)
Title: Improvements relating to intelligence converting apparatus and techniques
IPC: H03M7/00
Filed: 1963-12-12
Abstract: 1,016,755. Selective signalling systems. INVAC CORPORATION. Dec. 12, 1963 [Dec. 14, 1962], No. 49155/63. Heading G4H. In a recoding device, input character signals in a first code are compared with character signals in the same code derived photo-electrically from a perforated disc fixed on a continuously rotating shaft, and when coincidence is detected, the corresponding character signals in a second code, derived from another perforated disc on the shaft, are supplied to a utilization-device such as a punching machine.