baber/WOPTO huggingface dataset:
Patent GB-1525357-A (GB)
Title: Apparatus for draining liquid from a body cavity
IPC: A61L29/04
Filed: 1977-07-26
Abstract: 1525357 Catheters KENDALL CO 26 July 1977 [5 Aug 1976] 31353/77 Heading A5R A balloon catheter has a portion of the shaft 1, 2, an adaptor (100) connected to its proximal end or a discharge tube 32 connected by an adapter 20 to its proximal end made of a material which is pervious to air, impervious to body fluids and non-wettable by body fluids. Suitable materials are microporous polytetrafluoroethylenes having a pore size not greater than 5 microns (preferably not greater than 0.7 microns). The provision of such a tube permits air to enter the catheter and thus the body cavity and thus relieves the tissues of damaging suction effects.
Patent GB-1221850-A (GB)
Title: Organotin compositions and resins stabilized therewith
IPC: C07F7/22
Filed: 1968-07-01
Abstract: 1,221,850. PVC compositions. CINCINNATI MILACRON CHEMICALS Inc. 1 July, 1968 [19 July, 1967], No. 31355/68. Heading C3P. [Also in Division C2] Combined lubricant and stabilizer for PVC comprises an organotin mercapto acid ester and 5 to 50% (calculated on total weight of ester) of a dialkyltin dicarboxylate group of general Formula (V) where R<SP>1</SP> and R<SP>2</SP> are monovalent hydrocarbon radicals, n is 7 to 10, R<SP>3</SP> is CH 3  and m is an integer from 0 to n. The dialkyltin dicarboxylate group may form part of the dialkyltin mercapto acid. ester molecule, e.g. bis-(carbisooctoxymethylthiodibutyltin) azelate, or the composition may contain two separate compounds, e.g. dibutyltin bis-(isooctylmercaptoacetate) and dibutyltin azelate.
Patent GB-1073477-A (GB)
Title: Improvements in or relating to steering gears particularly for motor vehicles
IPC: F16H57/022
Filed: 1964-08-04
Abstract: 1,073,477. Cam steering mechanisms. ZAHNBADFABRIK FRIEDRICHSHAFEN A.G. Aug. 4, 1964 [Aug. 3, 1963], No. 31413/64. Heading F2K. In a vehicle steering gear comprising a globoidal worm 2 engaged by an annularly toothed roller 3 rotatably mounted in a cavity 26<SP>1</SP> in a steering shaft 21, the roller is displaced about the worm axis S by an angle (α), (Fig. 1, not shown) from a plane (EE) containing the worm axis and normal to the rocker arm axis (W), and, when the steering gear is in the central position, the roller axis R is displaced relative to a plane FF containing the rocker arm axis (W) and normal to the worm axis S by by an angle #<SP>1</SP> about an axis (MN), (Fig. 3, not shown) contained in the plane FF and normal to the rocker arm axis (W), the point M being the centre of the cavity 26<SP>1</SP>, and the roller centre M<SP>1</SP> is offset along the roller axis a distance m from the point M so that the roller maintains correct mesh with the worm as the rocker arm is turned from the centre position. The pitch circle envelope curve of the worm has a greater radius than the pitch circle envelope curve of the roller. The roller has needle bearings and is spaced from the walls of the cavity 26<SP>1</SP> by bearing washers (29), (Fig. 2, not shown). The roller may have an integral or separate spacer ring (39 (Fig. 6, not shown) at one end. The flank angles of the outer flanks of the asymmetrical tooth profiles of the toothed roller are about 2 degrees smaller than the angles of the worm flanks co-operating therewith, and the flank clearance between the outer flanks of the roller tooth profiles and the worm flanks cooperating therewith is in the range 0.1 to 0�5 mm., the flanks of the roller teeth and/or the profile of the worm being generally straightsided with a convex portion adjacent the tip.
Patent GB-1107558-A (GB)
Title: Production of acrylonitrile and methacrylonitrile
Inventor: PALM CHRISTOF
IPC: B01J23/28
Filed: 1965-07-23
Abstract: Acrylonitrile (or methacrylonitrile) from propylene (or isobutylene) is made by ammoxidation at elevated temperature using supported catalysts containing MoO3 and SuO2 and optionally BrO3, the catalyst having been prepared by impregnating the carrier with a solution of the metal oxides on the corresponding sulphates in conc.  H2SO4, followed by drying.  Examples describe the passage of gaseous mixtures of olefine + oxygen + ammonia + nitrogen and/or steam over suitably prepared catalysts at 480-500 DEG C.ALSO:Catalysts of MoO3, SuO2 \sB B2O3 on a carrier are made by impregnation using solutions of oxides or sulphates in concentrated H2So4.  Preferred carrier is SiO2, but Al2O3, SiC, diatomaceous earth and pumice are also mentioned.  Particle sizes and bulk density data are given.
Patent GB-1294498-A (GB)
Title: Improvements in or relating to a dual barrel carburettor
Inventor: SOUBIS JEAN-PIERRE
IPC: F02M1/00
Filed: 1970-06-29
Abstract: 1294498 Spray carburetters SOC DES AUTOMOBILES SIMCA 29 June 1970 [16 July 1969] 31433/70 Heading F1B A dust choke carburetter in which a switching off device prevents the operation of the engine subsequent to the breaking of the ignition circuit comprises a cut-off member 20 which controls only one of the two idling tubes 18, 18<SP>1</SP> of the carburetter and prevents fuel-flow through the single idling tube on switching off the engine. When the engine ignition is switched off electromagnetic valve 19 is de-energized so that valve 21 engages its seat 22. The electromagnetic valve may be replaced by a mechanically actuated valve connected to the ignition switch.
Patent GB-286793-A (GB)
Title: Combined ophthalmoscope and slit-lamp
IPC: A61B3/103
Filed: 1926-12-11
Abstract: 286,793. Turville, A. E., and Stewart, D. D. S. Dec. 11, 1926. Ophthalmoscopes. -An ophthalmoscope, which may be adjusted for use as a slit-lamp or as a retinoscope comprises a source of illumination 4, a condenser 5, a pair of focussing lenses 12, 14, an oblique mirror 22 and a battery of inspection lenses 17, different stopping means, Figs. 5-7, being provided for use between the condenser 5 and the focussing lenses 12, 14, one having the form of a slit. The mirror 22 is pivoted on a mounting 19, which itself is supported on a pivot 20 the axis of this pivot being out of line with the centre of the mirror. The battery of lenses 17 is mounted on a slide movable in the direction of the axis of the instrument and carries a wedge 18 co-operating with a wedge 19 on the back of the pivoted mirror 22, thus tilting the mirror. One of the focusing lenses 14 is pivoted so that it may be used for slit-lamp illumination. An additional mirror 23 may be used alternatively with the mirror 22 being formed of metal so that reflection takes place from a single surface.
Patent GB-768383-A (GB)
Title: Improvements in and relating to chimney cowls
IPC: F23L17/02
Filed: 1954-11-01
Abstract: 768,383. Chimney cowls. BURGER, A., and BURGER, H., [trading as KAMINBAU BURGER'S SOHNE.]. Nov. 1, 1954 [Nov. 2, 1953], No. 31497/54. Class 25. The chimney stack shown in Fig. 1 comprises chimneys 1, 2, 3 side by side on each of which are separate cowls built up of three hollow superposed. members 11, Fig. 2. Between the top of the chimney wall 10 and the lowermost member 11 is a supporting member 101. On two opposite sides of each cowl between members 11 are passages 12, whilst the other opposite pair of sides are plain walls 14. Lying in the central vertical plane AA of each cowl at right angles to the walls 14 is an air distributer 13. This distributer is so designed that when a downwardly directed wind enters the cowl top opening it strikes the upper faces 131 and is diverted into the uppermost passages 12, whilst upwardly moving flue gases pass through the lower passages. Horizontal or rising winds on the other hand, enter the passages 12 and are directed by them against the faces 133: which 'causes the winds to eddy so that chimney draught is not substantially increased. The roof-shaped lower edge 134, Fig. 3, of the distributer 13 serves to lead off any rain water collected on the distributer to the ends 135 from whence it may drain into gutters 136 which slope such that the water is led into the passages 12. In a further embodiment, three members 11 topped by a member 13 are shown on a single chimney stack, the passages 12 being in this case provided on all four sides of the members 11. In a row of cowls similar to that shown in Fig. 1, the walls 14 at each end of the row may be provided with passages 12.
Patent GB-1148365-A (GB)
Title: Multiple-orientation arm for mechanical handling
IPC: B25J9/06
Filed: 1967-07-10
Abstract: 1,148,365. Remote handling apparatus. SOC. SIERSATOM. 10 July, 1967 [13 July, 1966; 23 June, 1967], No. 31612/67. Heading B4Q. [Also in Division F2] A mechanical handling arm for the remote handling of objects comprises a plurality of substantially identical sections connected in series wherein means are provided for pivoting one section with respect to an adjacent section with at least two degrees of freedom. As shown, each section comprises a male portion with a part-spherical outer surface 5 and a female portion with a partspherical inner surface 6b. Each pair of adjacent sections are interconnected by electric or fluid pressure jacks 13 equally spaced around the axis 2. In a modification, Fig. 1 (not shown), the jacks are omitted and each section is provided with three equally spaced cables which are secured at one end to the section and which pass through apertures in the other sections to a control device at the inner end of the arm. In further embodiments, Figs. 6, 8 (not shown), the sections are interconnected by universal joints and by jacks pivoted to lugs equallyspaced around the outer surfaces of the sections. The arm may be enclosed by a protective sleeve.
Patent GB-808269-A (GB)
Title: Barbiturate pharmaceutical preparations
IPC: A61K31/515
Filed: 1957-10-09
Abstract: b  : b  - Methyl - ethyl - glutaramic acid is prepared by treating b : b -methyl-ethyl-glutaric anhydride in water with ammonia followed by acidification with hydrochloric acid.  b  : b -Methyl-ethyl-dithioglutarimide is prepared by boiling methyl-ethyl-glutarimide in xylene with phosphorus pentasulphide. b : b  - Methyl - isobutyl-glutarimide is prepared by heating b  : b -methyl-isobutyl-glutaric acid with urea.  a  : b -Dimethyl - b  - ethyl - glutarimide is prepared by treating a  : a 1 - dicyano - b  : b  - methyl - ethyl-glutarimide with dimethyl sulphate in presence of sodium and absolute alcohol to give N - methyl - a  : a 1 - dicyano - a  - methyl - b  : b  - methyl-ethyl-glutarimide, converting this by treatment with sulphuric acid to N-methyl-a  : b  - dimethyl - b  - ethyl - dicarbamoyl - glutarimide, hydrolysing this with sulphuric acid to a  : b  - dimethyl - b  - ethyl - glutaric acid, distilling this to give a  : b -dimethyl-b -ethyl-glutaric acid anhydride and heating this with urea.ALSO:A pharmaceutical preparation comprising a medicinal barbiturate and a substituted glutaric acid derivative selected from b ,b -methyl ethyl glutaramic acid, b ,b -methyl ethyl dithioglutarimide, b -spirocyclopentane glutarimide, b -spirocyclohexane glutarimide, b -spirocycloheptane glutarimide, b ,b - dimethyl glutarimide, b ,b  - diethyl glutarimide, b ,b  - methyl isobutyl glutarimide, b ,b -methyl-n-propyl glutarimide, a ,b ,b  - trimethyl glutarimide, a ,b  - dimethyl - b  - ethyl glutarimide, a - ethyl - b ,b  - dimethyl glutarimide and camphoric acid imide, or mixtures thereof in an amount insufficient to interfere with a therapeutic dose of barbiturate but sufficient to overcome the toxic effects of overdose.  Specified barbiturates are phenobarbitone, amylobarbitone, butobarbitone, pentobarbitone sodium, quinolbarbitone sodium, hexobarbitone sodium.  The proportion of substituted glutaric acid derivative should be 5-200 per cent, preferably 25-150 per cent, by weight of the barbiturate.  In addition the preparation may include b ,b -methyl ethyl glutarimide; mild stimulants such as caffeine and amphetamine; mild sedatives such as sodium bromide; hypnotics such as chloral and paraldehyde; analgesics such as aspirin, phenacetin and codeine; antiasthmatics such as ephidrine; anticholinergics such as atropine; anticonvulsants such as hydantoin. The preparation may be in the form of an injection, suppository, tablet, elixir or capsule and may embody an agent when in capsule or tablet form, delaying the release of the substituted glutaric acid derivative.  In tablet form the barbiturate may form a layer compressed over a core containing substituted glutaric acid derivative.
Patent GB-618139-A (GB)
Title: Improvements relating to pressure burners for liquid fuel
IPC: F23D11/44
Filed: 1946-10-25
Abstract: 618,139. Vapour burners. VALOR CO., Ltd., and HOLLAND, H. Oct. 25, 1946, No. 31690. [Class 75 (i)] In a pressure burner for liquid fuel a mixing tube 15 disposed above the fuel jet nipple 14 opens at its upper end into a space 20 between an inner cap 16 and a perforated outer burner cap 17 and the lower end of the mixing tube is given an additional communication with the space between the inner and outer caps so that if lighting back occurs a circulation is induced by the burning vapour to smother the ignition, the additional communication being provided by forming ports 21 in the wall of the mixing tube and further ports 22 in the wall of the inner cap 16. An annular vaporizing chamber 12 and a gallery 19 are disposed around the mixing tube 15 but in an alternative construction, the mixing tube is secured on the top of the vaporizing chamber and the communication between the mixing tube and the space between the two caps 16, 17 is provided by a plurality of radial grooves formed in the top of the vaporizing chamber. Re-ignition is effected by the heat in the outer cap 17.
Patent GB-1106277-A (GB)
Title: Benzofuroxan derivatives
IPC: C07D271/12
Filed: 1966-07-14
Abstract: Novel benzofuroxan derivatives of the formula <FORM:1106277/C2/1> wherein R1, R2 and R3 are each H, C1-alkyl C1-alkoxy, chloro or nitro, or any two adjacent are a second furoxan ring, and A is a bridging linkage having X valency bonds, each linked to a separate benzo-ring, and X is 2, 3 or 4, are prepared by heating an o-nitro azido compound or oxidizing an o-nitro amine with, e.g. NaOCl. When A is -CH2-, the o-nitro azido compound may be formed by reacting NaCN with the o-nitroamine, which is prepared by the rearrangement of N,N1-methylene bis-o-nitroaniline in concentrated HCl. This is itself formed by reacting o-nitro aniline with formaldehyde. When A is carbonyl, azo, trivalent phosphine oxide, the o-nitro azide is formed from the o-nitro chloro compound with NaN3, these o-nitro chloro compounds having been formed by nitration.  The tris-(p-Cl-phenyl) phosphine oxide is prepared by reacting the Grignard reagent of p-chlorobromobenzene with POCl3. When A is ether, the o-nitro amine which is oxidized is formed by nitrating diacetylated di-(p-aminophenyl) ether, followed by deacetylation with KOH in water/methanol.  The amino ether is formed by reduction of di-(p-nitrophenyl) ether with H2 over Pd.  The compound wherein A is a trivalent arsine oxide group is prepared from tris-(4-chloro-3-nitrophenyl) arsine oxide by treatment with sodium azide followed by heating to form the furazan ring.  This p-chlorophenyl arsine oxide is nitrated with a mixture of fuming HNO3 and concentrated H2SO4. It may be formed by oxidation of tris-p-chlorophenyl arsine with H2O2.
Patent GB-320783-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J61/16
Filed: 1928-11-01
Abstract: 320,783. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken.). Nov. 1, 1928. Vacuum tubes.-A discharge lamp for providing a yellow light has a filling of helium and an envelope of violet-absorbing or yellow vitreous material. The helium may be at a pressure of 9 mm. and may contain other gases or vapours in small quantity.
Patent GB-484125-A (GB)
Title: An improved feed-mechanism for portable boring bars and like tools
IPC: B23Q9/00
Filed: 1936-11-20
Abstract: 484,125. Portable boring-bar machines. TAYLOR, H. G., and WILLIAMSON, J. V. Nov. 20, 1936, Nos. 31855/36 and 1137/37. [Classes 83 (i) and 83 (iii)] In a portable boring-bar or like tool, a bracket is secured to the bar at an axially adjustable point so as to have free rotative engagement therewith and a nut on a feed screw which is axially secured parallel to the bar engages the bracket to feed the bar axially. The machine comprises a number of brackets 16 adapted to be adjustably secured to a crank-case 10 and provided with sockets 17 in which rods 18 may be clamped. The rods 18 are rotatably and axially adjustable in the sockets and carry bearings 19 for the boring-bar 12. Cutters 14 are secured in transverse bores in the bar by screws 15. A feed screw 25 is fixed by a bracket 27 to one of the brackets 16 and has a nut 26 rotatable thereon, the nut being axially immovable between the limbs of a U-shaped member 20 having bosses 21 freely slidable on the bar 12 and engaging a collar 23 adjustably secured to the bar. As the bar is rotated bv means of a handle 33 thereon a tooth 32 on the collar 23 engages once in each revolution with a gear 30 on the nut to feed the bracket 20 and the bar, or the nut may be rotated for adjustment of the bar by means of a knurled flange 29 thereon when the tooth 32 has been moved along its slotted support 31 to an inoperative position. A spring clip 34 restricts the free rotation of the nut. In use, collars are fitted to two or more of the bearing housings 11 in the crank-case 10 and the bar 12 inserted therein so as to be positioned before the brackets 16 and rods 18 are secured. The collars are then replaced by the bearings to be bored and the cutters inserted in the bar. In an alternative form of the supports 18 hollow rods 45, Fig. 5, are adjustable in the sockets 17 and are provided with cylindrical or V-shaped surfaces 46 engaging cylindrical surfaces 50 on bearings 47 for the bar 12. Each bearing has a pivot 52 concentric with the surface 50 which serves to clamp the bearing in any adjusted position by means of a rod 53 attached thereto and a nut 55. A spring 56 holds the bearing loosely when the nut is released and the bearing may be split at 48 and tightened on the boring-bar by a nut 49. Casting ; turning.-In order to adapt the boring-bar readily to bearing housings 11 of different size, the collars fitted to the housings may be formed by casting white-metal 39 in a mold consisting of a base 35, Fig. 9, having concentric annular grooves 36, in any one of which is placed a tube 37 of appropriate size. The collar is cast between the tube 37 and a central spigot 38 having the same diameter as the boring-bar, and a hole 40 in the base produces a pin 44, Fig. 7, on the collar by which it may be rotated through a pin 43 on the bar in order to turn it to exact size by means of a turning tool 42 on a frame 41 attached to the crank-case 10.
Patent GB-1375636-A (GB)
IPC: C08F214/00
Filed: 1972-07-07
Abstract: 1375636 Flame - retardant copolymers STAUFFER CHEMICAL CO 7 July 1972 [8 July 1971] 31870/72 Heading C3P Emulsion copolymers having fire-retardant properties comprise (a) at least one halogencontaining monomer, (b) 1 to 90% by wt. of at least one compound of the formula wherein X is H, CN, aryl, C 1 -C 18  alkyl or -PO(OR)(OR<SP>1</SP>) and R and R<SP>1</SP> are C 1  to C 18  hydrocarbyl or substituted hydrocarbyl groups and may be joined to form a ring and (c) optionally one or more further monomers, preferably forming up to 30% by wt. of the copolymer. The copolymers may be used for coating, impregnating &c. by themselves or, preferably, in combination with a normally inflammable polymer substrate. The combination is preferably made by mixing emulsions of the two polymers; many suitable addition and condensation polymer substrates are mentioned. Conventional fire-retardants and/or other conventional additives such as plasticizers, stabilizers, lubricants, fillers &c. may also be added. An example describes the emulsion copolymerization of vinyl chloride and bis(#-chlorethyl)vinylphosphonate and blending of the product with a poly(butyl acrylate) emulsion to make a film-forming composition. Copolymers of bis-(#-chloroethyl)vinylphosphonate with vinyl bromide or with vinyl chloride and N- methylol acrylamide are also specifically mentioned.
Patent GB-937948-A (GB)
Title: A gauging device for the tool bits of milling cutters and the like
IPC: B23Q17/09
Filed: 1959-09-18
Abstract: 937,948. Gauges. SANDVIKENS JERNVERKS A.B. Sept. 18, 1959 [Sept. 18, 1958], No. 31899/59. Class 106 (2). [Also in Groups XXII and XXIII] For indicating the amount by which an edge 18 of a milling tool bit (Fig. 7), must be ground down, when the cutting edge 17 has worn, in order to maintain the point 35 a given distance from the tool support 40, a gauge (Fig. 1) is used having a base-plate and a supporting wall 24 for the bit (corresponding to the supporting surfaces of the milling cutter in which the tool is to be mounted), a fixed datum stop 26-25 (see Figs. 6 and 7), for engaging the edge 17, and a movable datum member 22 which engages the point 35 and the displacement of which is shown on the dial gauge 20. If the member 22 is pushed in too far (beyond the tolerance limits indicated by marks 21), the edge 18 requires grinding down; if it extends too far out, then the edge 17 must be ground. The fixed stop has a conical or concave shape (Fig. 6) to compensate for variations in the contact height of the tool bit. In an alternative embodiment (Fig. 8), the point of the bit engages a fixed wall 29 and the cutting edge is contacted by the feeler member of the dial gauge.
Patent GB-225397-A (GB)
Title: Improvements in automatic recording meters for liquids
IPC: G01F3/16
Filed: 1923-12-20
Abstract: 225,397. Armstrong, J. J. V., (Soc. Hardoll). Dec. 20, 1923. Liquid-meters.-The distributing valve or valves 15 of a liquid-meter is or are operated through the connections shown from a piston 16, which is operated by the pressure of the liquid after a main piston 3 reaches the ends of its stroke. The measuring cylinder 4 is provided with stroke-regulating stops 9, 10 and air-escape valves 11, 12.