baber/WOPTO huggingface dataset:
Patent GB-697293-A (GB)
Title: Improvements in or relating to the production of nitriles
Filed: 1950-08-22
Abstract: Nitriles are obtained by a process which comprises the step of reacting at an elevated temperature and in liquid phase a high molecular weight fatty acid material and ammonia in the presence of phosphorus as catalyst.  The fatty acid material is defined as a fatty acid containing six or more carbon atoms in the hydrocarbon group or an ester or anhydride of such acid.  The fatty acid may be saturated, mono-unsaturated or polyenic and specified acids are lauric, palmitic, stearic, oleic, ricinoleic, linoleic, linolenic, and elaeostearic acids.  Mixed acid stocks such as tall oil and the acid obtained by hydrolysis of linseed oil, cotton-seed oil, soyabean oil and castor oil may also be used and the natural acid mixtures obtained, for example, from linseed oil or soyabean oil may be fractionated, e.g. by fractional distillation or fractional crystallization to obtain an acid fraction containing a higher proportion of polyene acids which is then subjected to the reaction with ammonia.  When polyene acids are employed the nitrile product is substantially polymeric.  The phosphorus may be used in its various forms but it is preferred to use red or amorphous phosphorus.  The process may be carried out batchwise or in a continuous manner and suitable apparatus for carrying out the process in a continuous manner is described and p  illustrated.  In examples: (1) a mixture of dehydrated castor oil fatty acids and red phosphorus is heated and a stream of ammonia gas bubbled through the liquid at 310-315 DEG  C. The monomeric nitriles are removed from the reaction mixture by vacuum distillation leaving the polynitriles in the residue; (2) a mixture of castor oil fatty acids and red phosphorus is heated at 310-315 DEG  C. in a stream of ammonia and the product treated as in (1) to yield monomeric and polymeric nitriles; (3) as in (2) using dehydrated castor oil acids; (4) linseed oil fatty acids and red phosphorus are processed as in (1); (5) distilled soyabean oil fatty acids and red phosphorus are processed as in (1); (6) a mixture of dehydrated castor oil fatty acids and red phosphorus is heated with ammonia gas at temperatures increasing from 320 DEG  to 350 DEG  C. and the product treated as in (1).  The polynitriles are stated to be useful as plasticizers for synthetic resins and may be reacted with hydrogen in the presence of hydrogenating catalysts such as nickel and platinum to produce polyamines which are also useful as plasticizers.  The hydrogenation may be effected at 120-170 DEG  C. and smaller pressures of 50 to 500 lbs. per square inch.  The polyamines may be condensed with polycarboxylic acids to form polyamides which are useful as coating compositions.
Patent GB-774254-A (GB)
Title: An improved method of and apparatus for cross cutting travelling lengths or webs of material
IPC: B65H23/02
Filed: 1955-07-19
Abstract: 774,254. Cutting apparatus. JAGENBERGWERKE AKT.-GES. July 19, 1955 [July 21, 1954], No. 20849/55. Class 31 (1). Apparatus comprising an inclined rotary cutter 7 co-operating with a fixed cutter 5 for securing a web 1 of paper, card or the like into sheets has a guide roller 11 in advance of the knives for vertically deflecting the material at one side edge of the web relatively to the other side edge to ensure that a rectilinear cut perpendicular to the length of the web is obtained. The shaft 13 of the roller 11 is mounted at its ends in bearings one of which is vertically adjustable.
Patent GB-1381144-A (GB)
Title: Production of anthraquinone
IPC: C07C46/02
Filed: 1972-05-05
Abstract: 1381144 Anthraquinone BASF AG 5 May 1972 [7 May 1971] 20994/72 Addition to 1271355 Heading C2C  Anthraquinone is. prepared by oxidizing a compound of the formula where R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are alkyl and R<SP>1</SP> and/or R<SP>3</SP> may be hydrogen, with oxygen in the gas phase at elevated temperature in the presence of a pentavalent vanadium compound and a compound of tellurium. Phthalic anhydride is a byproduct.
Patent GB-257615-A (GB)
Title: Improved means for the inflation of the air tubes of pneumatic tyres for automobiles
IPC: F16K15/18
Filed: 1926-08-26
Abstract: 257,615. Houben, M. Aug. 26, 1925, [Convention date]. Piston pumps convertible into motors.-A device by which motor car tyres can be inflated from one of the engine cylinders comprises a body A which can be screwed into a plug hole in the cylinder and is fitted with a transverse cylindrical chamber carrying a rotatable sleeve B fitted with inlet ball valves. The sleeve can be turned so that apertures in it allow communication between the cylinder and a tyre connection H, a ball valve G preventing back flow of air. A lateral branch M is provided, having a hole to receive a sparking- plug.
Patent GB-195320-A (GB)
Title: Improvements in and relating to railway station and other lamps and wick burners therefor
IPC: F21V37/00
Filed: 1922-08-02
Abstract: 195,320. Naisbitt, W. J. Aug. 2, 1922. Wick burners; flame regulating and extinguishing; oil reservoirs; overflow flttings.-The wick chamber b of a railway station or other lamp is connected by a tube e to a chamber d to which oil passes from a reservoir e<1> through a channel f when the oil level in the chambers b, d falls below the level of an aperture in the channel f. A tube h provides an escape from the chamber if the oil rises above its proper level. The capacity of the chamber d is sufficient to prevent an excessive change of oil level due to the eapansion of the air in the reservoir e<1> caused by the heat of the flame. This heating effect is minimised by mounting the reflector on a sheet-metal plate d which is separated by an air space from the reservoir. The reservoir e<1> is filled by laying it on its back and pouring oil through the burner opening. The oil passes through the chamber d and the channel f to the reservoir e<1>. The air escapes from the reservoir e<1> through a tube g, the ends of which are sealed by the oil when the lamp is in its normal position. The tube e is sealed by the oil during the filling operation and prevents the escape of air from the chamber d. The regulation of the flame is effected by means of a vertically slidable rod l passing through the tube h and carrying a collar l<2> engaging at the ends of its movement a member and a pin m connecting two U-shaped bodies j, j<1> slidably on the wick tubes. The bodies j, j<1> carry plates k, k<1> which are. pressed against the side of the wick tubes by springs k<2>. A collar l<3> on the rod l<3> limits the upward movement of the rod l so as to prevent extinction if the flames by engaging the under surface of the burner. The flames are extinguished by operating a lever n. The inner end of the lever n engages when raised the member j<2> and when depressed a projection o on a tube e<1> secured to the member j<2>.
Patent GB-1470354-A (GB)
Title: Apparatus for supporting magnetic tape
IPC: G11B15/61
Filed: 1975-05-19
Abstract: 1470354 Supporting magnetic tape in rotating head apparatus INTERNATIONAL BUSINESS MACHINES CORP 19 May 1975 [15 July 1974] 21138/75 Heading G5R A magnetic tape 13 is supported across the path of a rotating, flying magnetic head, mounted on a rotor 11, by tape support means 14, 15 one on either side of rotor 11, the rotor 11 having an annular outer surface 25 whose outer diameter extends outwardly beyond both supports 14, 15 and which is effective to support the tape 13 with a gas bearing along the rotor path to thereby produce localized tape deflection coincident with this path, and the magnetic head extending radially outwardly beyond the outer diameter of the annular surface 25 of the rotor 11 to thereby produce a moving tent 40 or 41 of localized tape deflection coincident with the head. In a helical tape wrap apparatus, which may be of the type shown in Specifications 1,420,724 and 1,457,355, the rotor 11 carries a read head (32) and a write head (33), Figs. 5, 6 (not shown), which may be of the type shown in Specifications 1,436,396 and 1,470,353. Rotor 11 is flanked by stationary cylindrical mandrels 14, 15, which may be as disclosed in Specification 1,456,166, and support the tape 13 with an air bearing providing a spacing 21 of 0À002 inch. The annular surface 25 of rotor 11 has an arcuate contour in cross-section in a plane containing the rotor axis with a radius of curvature of about 10 inches, so that the peak of the contour 25 projects out beyond surfaces 23, 24 of mandrels 14, 15 whereas the edges (19A), Fig. 3 (not shown), of contour 25 may be level with or below surfaces 23, 24, e.g. mandrels 14, 15 are of 3À5 inch diameter and rotor 11 is of diameter 3À499 inches at edges (19A) and has a maximum diameter of 3À505 inches. Rotation of rotor 11 produces a hydrodynamic gas bearing for tape 13 and in addition rotor 11 may be pressurized to define a hydrostatic air bearing for tape 13, whereby the spacing 22 may be 0À0003 to 0À002 inch at the maximum diameter of rotor 11 and in regions away from the heads (32), (33) which protrude about 0À004 inch above such maximum diameter and produce localized moving tents 40, 41 in the tape 13 whereat the tape flies above the heads with a spacing of 5 to 20 microinches. An alternative contour for rotor 11 is disclosed with respect to Fig. 3a (not shown), unsuitable contours being disclosed with respect to Figs. 3b, 3c (not shown).
Patent GB-353671-A (GB)
Title: Improvements in welding
IPC: B23K35/24
Filed: 1930-07-12
Abstract: Metals obtained by the thermal decomposition of the corresponding carbonyls are subjected to a heat treatment to reduce the carbon.  An iron powder obtained by the thermal decomposition of iron carbonyl and containing 0,98 per cent of carbon, is sintered at 900 DEG  C. in hydrogen to reduce the carbon to 0,03 per cent.  An iron powder containing 1,3 per cent of carbon and 1,7 per cent of oxygen is decarbonized by sintering in a cylindrical mould in a calcining furnace at about 1000 DEG  C.
Patent GB-568974-A (GB)
Title: Metal-cutting facing tool
IPC: B23D79/00
Filed: 1943-12-18
Abstract: 568,974. Cutters and cutter-bars. McGIBBON, W. Dec. 18, 1943, No. 21285. [Class 83 (iii)] A portable tool, for operations such as end facing the metal round a stud, comprises a hollow body 10, with a cutter 12 with edge centrally radial to the end 15 of a slot 16 that accommodates the stud S. Adjustment for stud diameter is effected by a V-block 17 notched at 21, 22 to engage conical wedges 19, 20 prevented from rotating by a key 25 and movable by a screw 23 having a knob 28. A spring 29 maintains engagement between the block 17 and the wedges. A polygonal portion 14 provides for rotation of the tool and an adjustable stop 31 controls the depth of cut.
Patent GB-923586-A (GB)
Title: A method of bonding polyvinylchloride to metal surfaces
IPC: C09D4/06
Filed: 1959-06-22
Abstract: A composition including polymerizable triallyl cyanurate, a homopolymer of vinyl chloride and a polymerization catalyst, is applied to a surface comprising a metal which has been provided with an adherent inorganic coating, e.g. a phosphate or oxychromate coating, and polymerized.  The composition may include a plasticizing agent, e.g. phthalate esters, phosphate esters, or epoxide-containing plasticizers, heat or light stabilizers, e.g. barium cadmium laurate, lead stearate, calcium stearate or epoxy resins, and volatile diluents or solvents, as well as fillers and pigments.  Suitable catalysts include symmetrical diacyl peroxides, terpene peroxides and dialkyl peroxides; cumene hydroperoxide is preferred.  The speed of polymerization may be increased by the use of mixed catalyst, e.g. one comprising cumene hydroperoxide, aluminium chloride and an amine. One or more additional coatings of vinyl chloride polymer may be applied to the polymerized triallyl cyanurate coating and fused thereto, and the final coating may be embossed or calendered.  In examples, a mixture of polyvinyl chloride, diethyl hexyl phthelate, triallyl cyanurate and benzoyl peroxide is coated on "Bonderised" (Registered Trade Mark) steel sheet, and on aluminium sheet which had been treated with "Alodine" 1200 (Registered Trade Mark), and baked for 15 minutes at 175 DEG C.ALSO:A composition including polymerizable triallylcyanurate, a homopolymer of vinyl chloride and a polymerization catalyst, is applied to a metal surface which has been provided with an adherent inorganic coating, and polymerized. The composition may include a plasticizing agent, e.g. phthalate esters, phosphate esters, or epoxide-containing plasticizers, heat or light stabilizers, e.g. barium cadmium laurate, lead stearate, calcium stearate or epoxy resins, and volatile diluents or solvents, as well as fillers and pigments.  Suitable catalysts include symmetrical diacyl peroxides, terpene peroxides and dialkyl peroxides; cumene hydroperoxide is preferred.  The speed of polymerization may be increased by the use of a mixed catalyst, e.g. one comprising cumene hydroperoxide, aluminium chloride and an amine. In examples, a mixture of polyvinyl chloride, diethyl hexyl phthalate, triallyl cyanurate and benzoyl peroxide is used.
Patent GB-1085056-A (GB)
Title: Improvements in or relating to electrical indicators
IPC: B60Q1/38
Filed: 1963-05-28
Abstract: 1,085,056. Rotary distributers. A. SERGIDES. May 28, 1964 [May 28, 1963], No. 21364/63. Heading H2B. [Also in Division G4] In a rotary distributer the rotor arm 7 is rigidly mounted and the fixed contacts 17 are resiliently mounted. In a modification, Fig. 4 (not shown), the fixed contacts are rigid and the rotor is resiliently mounted. In another construction, Fig. 5 (not shown), pairs of contacts (24) are mounted on a fixed disc (22) and a single pair of contacts (25) is mounted on a rotating disc so that they slide in succession in electrical contact with the fixed contacts.
Patent GB-810680-A (GB)
Title: Improvements in or relating to electrical ignition devices
Inventor: GOUGH IRVYN KEITH
IPC: H01T13/52
Filed: 1956-07-10
Abstract: 810,680. Surface discharge sparking plugs. K.L.G. SPARKING PLUGS Ltd. July 10, 1957 [July 10, 1956], No. 21387/56. Class 7(4) A surface discharge sparking plug comprises a spark gap between the electrodes 12, 16 (Fig. 1) or electrodes 12, 32 (Fig. 2) and a capacitor between the electrode 16 and the casing or a capacitor 36 (Fig. 2) between the electrode 32 and the casing. In Fig. 1 the exterior surface of the insulator 17 is metallized. The electrode 16 insulator 17 and metallic coating on the exterior surface of the insulator constitute the capacitor. An insulating washer 27 serves to insulate the metallic coating from the electrode 16. In Fig. 2 the capacitor 36 comprises a tubular ceramic insulator which has a metallic coating on its inner and outer surfaces. The metallic coating on the inner surface extends from the top end of the insulator part way only towards the bottom end thereof and is carried over on the top end of the insulator. The coating on the outer surface extends part way towards the top end and is carried over the bottom end. A spring disc 42 urges the capacitor 36 into contact with the supply terminal 35. A suitable capacity for the capacitor is approximately 100 pf.
Patent GB-350771-A (GB)
Title: Improvements in or relating to hydraulic supply systems
IPC: E03B11/08
Filed: 1930-07-15
Abstract: 350,771. Regulating, liquid level. HOLDEN & BROOKE, Ltd. and JOSCELYNE, A. W. A., Sirius Works, West Gorton, Manchester. July 15, 1930, No 21399. [Class 123 (i).] In a system in which the varying level of liquid in a sealed container is used for the control of electrically-operated plant, e.g., in hydraulic systems where an automatically - operated booster pump is employed to deal with variations in demand, a vessel 1 is connected by passages 2, 3 to the liquid and compressed air' spaces respectively of a liquid storage reservoir in the system. A compartment 5 is in constant connection at 6 with a relay for starting an electric motor associated with the air compressor, and is provided with two valves 7, 8 interconnected by a rocker 9. The valves 7, 8 are operated simultaneously by a rod 10 connected to a float in the vessel 1. In the position shown, the relay is connected to atmosphere through the valve 7, but if the liquid level rises, the valve 8 is opened and valve 7 is closed, the relay is actuated. and the air compressor is started and runs until the liquid level falls to the required point. The operation is not dependent on the pressure in the system, and all moving parts are within the vessel 1.
Patent GB-236416-A (GB)
Title: Improvements in foot rests for pillion riders of motor-cycles
IPC: B62J25/00
Filed: 1924-09-11
Abstract: 236,416. Leeming, J. T. Sept. 11, 1924. Foot-rests for pillion riders of motor-cycles comprise a metal tube c splayed at c<1> for attachment to a twopart clip a, which embraces one of the rear members f of the frame, and is provided with a set-screw e to grip the frame member.
Patent GB-623750-A (GB)
Title: Improvements in hydrostatic balances
IPC: G01G5/02
Filed: 1946-07-19
Abstract: 623,750. Weighing-apparatus. LANGE, B. G., and LANGE, K. H. July 19, 1946, No. 21646. [Class 143] A hydrostatic weighing apparatus suitable for tolerance measurement comprises a float 10 in a liquid filled vessel 11 which has secured to it an auxiliary member 14 of relatively small cross-sectional area dipping into an open cup 15 carried by the float 10. The auxiliary member 14 is shown as a tube providing an outlet for a rod 13 which connects the weigh pan 12 to the float and also carries the cup 15. A normal load 16 on the pan 12 is substantially balanced by the float 10, and small variations in load are balanced by vertical displacement of the float and the parts 12, 13 and 15 carried by it, such displacement varying the hydrostatic upthrust on the tube 14 and the downward reaction thereof on the cup 15 to restore equilibrium. An annular pointer 25 on the cup 15 indicates the weight against a fixed scale 24 and is adjusted to read correctly by turning a screw 22 to raise or lower the cover 17 of the vessel 11, the cover being connected to the vessel by a bellows 18. Effects of temperature change may be nullified by suitable selection of materials for the vessel and float, and of the liquid employed. The float may be of hard rubber and the liquid a mixture of glycerine and water. In a modification, Fig 3 (not shown), the rod 13 is connected by a flexible band and pulley to a rock shaft which carries a depending indicator pointer. This pointer acts pendulum-wise to counterbalance the variations in load either wholly (the tube 14 then having a very small diameter) or in conjunction with the tube 14. In Fig. 4 (not shown) a separate pendulum, additional to the pointer is provided on the rock shaft, and the load platform is connected to the rod 13 through a conventional lever system beneath the platform.
Patent GB-316767-A (GB)
Title: Improvements relating to detachable links for harness and the like
IPC: B68B5/02
Filed: 1928-07-26
Abstract: 316,767. Bengtsson, S. July 26, 1928. Hooks, closed.-In a pair of sister hooks formed from flat strip metal 1, 2, the simultaneous opening of both loops is avoided by the pivot pin 3 being placed out of the centre of length. The hooks can be locked in the closed position by a screw passing through both plates.
Patent GB-1222544-A (GB)
Title: Elastic woven fabric and method of producing the same
Inventor: TURCKSIN CHRISTIAN HEINRICH
IPC: D03D15/56
Filed: 1968-05-08
Abstract: 1,222,544. Producing woven elastic fabric. C. H. TURCKSIN. 8 May, 1968 [23 Nov., 1967], No 21714/68. Headings D1K and DIP. An elastic woven fabric which is both longitudinally and laterally stretchable is produced by weaving a fabric from an elastic warp, and weft threads which become crimped when they absorb moisture, impregnating the fabric with a partly cured latex during which impregnation the weft threads absorb moisture from the latex and become crimped, and fully vulcanising the impregnated fabric at a maximum temperature of 70-75C. The warp threads may comprise cores of vulcanised rubber filaments having an external covering of helically wound textile filaments and the weft threads may consist of cellulose fibres which prior to impregnation of the fabric with latex are in an unwashed and unimpregnated state. The fabric may be impregnated by conveying it through a bath of partly cured latex, the liquid being forced into the weave by rollers and any surplus latex being squeezed off. During impregnation and vulcanisation the fabric may shrink in width by an amount of 5-15% due to the cellulose fibres assuming a crimp when they absorb moisture from the latex both. Fabrics 40 and 100cm wide may be produced.
Patent GB-440970-A (GB)
Title: Improvements in and relating to bush bearings
IPC: F16C33/14
Filed: 1934-07-25
Abstract: 440,970. Pivot bushes. WILLIAMS, D. D., and WILLIAMS, Ltd., H., Railway Appliances Works, Darlington. July 25, 1934, No. 21740. [Class 65 (ii)] [See also Group XXXIV] In a bush bearing, the bush b makes a sliding fit within its housing, and is electrically welded thereto topreventrelative displacement. As shown, the bush b of hardened steel and the housing have recesses c, d, respectively, at which the welds e are made. In a modification, the bush is split longitudinally and the welds are formed at the ends of the split. When worn, the bush can easily be removed after the welds have been broken.
Patent GB-1324921-A (GB)
Title: Bandpass filter including monolithic crystal elements and resistive elements
IPC: H03H9/60
Filed: 1971-04-19
Abstract: 1324921 Electromechanical filters MOTOROLA Inc 19 April 1971 [19 Feb 1970 16 Dec 1970] 21775/71 Heading H3U A bandpass crystal filter circuit for coupling between a receiver 10 and I.F. amplifier 18 comprises, Fig. 5, crystal filters 14, 16 each comprising a crystal body provided with four electrodes forming two resonator portions. To eliminate ringing due to the effect of extraneous impulses derived, e.g. from automobile ignition apparatus, the filters 14, 16 are connected by a resistorcapacitor circuit 28, 32, 34, this circuit serving to remove the sharp corners 17a, Fig. 2, of the bandpass curve 17 and causing the curve to have the rounded shape 17b. In another embodiment, Fig. 7, three filters 64, 68, 73 are connected by resistors 67, 69, 71, 72 and capacitors 66, 72a.
Patent GB-855274-A (GB)
Title: Tape reading apparatus
Inventor: LLOYD MARTIN HERBERT
IPC: G06K7/10
Filed: 1959-06-25
Abstract: 855,274. Photo-electric tape readers. CREED & CO. Ltd. June 25, 1959, No. 21797/59. Class 40(3). [Also in Group XIX] Tape reading apparatus for reading information stored on a tape 4 in the form of a code combination of perforations 6, comprises means 1, 2 for directing a beam of parallel light on the tape, a plurality of photo-cells 7, 8, each for determining the presence or absence of a perforation in the tape in one code element position and each positioned on the side of the tape remote from the source of parallel light at a distance X equal to a distance of from 3- to 15- times the diameter of a photocell window, and a plurality of light baffles 9, the axis of which are disposed parallel to said beam of light and each having an interior surface which is optically non- reflecting. The photo-cells may comprise semiconductor devices. The baffles may be formed of synthetic resin bonded paper with the interior surfaces sprayed with optical matt black. The invention has the effect of increasing the ratio of the signals produced by perforation 6 and tape area 5 with no perforation since only a small amount of light 12 which diffuses through an area with no perforation reaches the photocell. If desired the apparatus may include an apertured light chopper 10.
Patent GB-625540-A (GB)
Title: Improvements in or relating to metal to glass seals
IPC: H01J5/42
Filed: 1947-08-08
Abstract: 625,540. Glass-to-metal seals. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Aug. 8, 1947, No. 21831. Convention date, Nov. 2, 1943. Drawings to Specification. [Class 36] [Also in Group XL (a)] The subject-matter of this Specification is identical with that described in Specification 589,215.