baber/WOPTO huggingface dataset:
Patent GB-827623-A (GB)
Title: Preparation of drying oils by the polymerization of the products from the codehydrogenation of butane and ethyl benzine
IPC: C08F236/10
Filed: 1956-11-15
Abstract: A unitary process for preparing a synthetic drying oil comprises catalytically dehydrogenating a mixture of ethylbenzene and a hydrocarbon chosen from n-butane, butene-1 and butene-2, to form a mixture containing substantial quantities of butadiene and styrene, subjecting this mixture without separation to polymerization in the presence of a finely divided alkali metal to form an oily polymer, separating unreacted materials from the polymer and recycling them to the dehydrogenation zone.  In a preferred embodiment, a mixture of n-butane and ethylbenzene is introduced through line 1 together with recycle n-butane, butenes and ethylbenzene from line 2 and heated to 500-1150 DEG  F. in a preheater 3.  The mixture is then dehydrogenated <PICT:0827623/IV (a)/1> in unit 5 at a pressure of 2-10 pounds per square inch, and a temperature of 1150-1450 DEG  F. over a chromia-alumina type catalyst or a mixture of magnesium oxide, iron oxide, copper oxide and potassium oxide, and the products after quenching in a tower 7 and cooling in a heat exchanger 9 pass through a series of compression stages 11 where the major part of the product is liquefied and withdrawn through line 12.  After stripping off light gases the liquefied product optionally with the addition of an ether such as dioxane-1,4, diethyl ether, methylal, ethylal, methylacetal, or t-butyl methyl ether or an alcohol such as isopropanol, isobutanol, isopentanol, secondary butanol and tertiary butanol is passed over a polymerization catalyst such as sodium, potassium, lithium, caesium, rubidium or their alkyl compounds in vessel 20. The catalyst may be prepared by dispersing the molten metal in a hydrocarbon such as Varsol or ethyl benzene and cooling with stirring.  Polymerization may be effected in several stages. The crude product is neutralized with ammonia in vessel 27 and the product filtered with the aid of silica gel, clay or charcoal in filter 30.  The required polymer which is a colourless to yellow liquid is withdrawn through pipe 34 and unreacted vapours are recycled through pipe 33.  Specifications 704,607 and 766,225 are referred to.
Patent GB-1098583-A (GB)
Title: Yarn guide
IPC: B65H54/48
Filed: 1965-08-16
Abstract: 1,098,583. Winding machine. LEESONA CORPORATION. Aug. 16, 1965 [Sept. 28, 1964], No. 34967/65. Heading D1J. [Also in Division F2] In a winding machine in which there is provided a rotatable, threaded, tubular guide 32 for receiving a yarn from a knotter 26 and delaying it return to the constantly rotating traverse roll 18 until the package 10 is accelerated from rest, the tubular guide 32 is provided with a brake which may be present in dependance on the yarn count and package size so that the speed of rotation of member 32 and hence the time delay before the yarn is returned to the traverse roll 18 is sufficient to allow the package to obtain normal winding speed.
Patent GB-1444025-A (GB)
Title: Edible fatty emulsion and method of preparing the same
IPC: C09K23/00
Filed: 1973-07-23
Abstract: 1444025 Edible emulsion ASAHI DENKA KOGYO KK 23 July 1973 [21 July 1972] 35031/73 Heading C5C An edible emulsion in which the phases may be reversed by mechanical working, e.g. whipping comprises a continuous oil phase and a disperse phase which is an aqueous phase or a dispersion of an oil phase in an aqueous phase; the total amount of continuous oil phase and disperse oil phase (if any) being from 50-95 wt. per cent of the emulsion, the amount of disperse aqueous phase being 5 to 50 wt. per cent of the emulsion, the particle size of the disperse phase being from 2 to 20 microns the emulsion comprising: (a) a polyhydric alcohol fatty acid ester component (other than a sucrose fatty acid ester) composed primarily of monoesters together with smaller amounts of di- and tri-esters of which the fatty acid contains at least 50 wt. per cent unsaturated fatty acid, in such an amount that the polyhydric alcohol unsaturated fatty acid ester is present as 0À25- 2-5 wt. per cent of the emulsion and (b) a sucrose fatty acid ester component having a HLB value of at least 10 of which the combined fatty acid contains 12 to 22 C atoms and contains at least 50 wt. per cent of monoester in an amount of 0À5-5 wt. per cent of the emulsion. The unsaturated fatty acid may be myristoleic, 9-palmitoleic, oleic, lindeic, linoleic, gadoleic, arachidonic or erucic acid. The polyhydric alcohol may be glycerine, propylene glycol, sorbitol, sorbitan or sorbide. The oil or fat may be milk fat, soyabean, cottonseed, corn, safflower, palm, rapeseed, kapok, coconut, fish or whale oil; butter fat, lard or tallow or oil produced by hydrogenation of the above oils or mixtures thereof. The aqueous phase may contain water-soluble protein, e.g. sodium caseinate.
Patent GB-1122481-A (GB)
Title: Improvements in or relating to welding apparatus
IPC: B23K11/25
Filed: 1965-08-16
Abstract: 1,122,481. Supply circuits for resistance welding apparatus. UNITEK CORP. 16 Aug., 1965 [17 Aug., 1964; 16 July, 1965], No. 35033/65. Heading H2H. [Also in Division H3] Resistance welding apparatus of the type in which a pulse of energy from a charged condenser 32 is passed via transistors 34 and transformer 37 to a pair of electrodes in contact with the workpiece 79, is provided with a timing arrangement to vary the duration of the pulse according to the size of the workpiece, the timer being controlled by a signal indicative of the resistance of the workpiece or the voltage across or the current through the electrodes. In the circuit of Fig. 2, a signal from a current sensing resistor 74 is applied to a modulation amplifier transistor 108 which controls the charging time of a capacitor 118 whose discharge (at a predetermined voltage) through a timing pulse generator 126 fires a gate control switch 95 to turn-off the transistors 34 via a gating transistor 100 and driver transistors 40, so terminating the welding pulse. Initiation of the pulse is produced by closure of a switch 80, responsive to electrode pressure on the workpiece, which switch controls a trigger pulse generator 87 coupled to the firing electrode of switch 95 through a capacitor 94. Adjustment of rheostats 60, 104, which respectively control the welding pulse voltage and the member 108, is made according to the range of sizes to be welded and ensures that satisfactory welds are automatically obtained for variations through this range. A bias winding 132 prevents saturation of the transformer 37 which is of the single polarity D.C. type. In a modification, Figs. 3 and 4 (not shown) the transformer can be a conventional A.C. type fed by a transistor chopper whose frequency is controlled by a freerunning square wave generator comprising transistors, a clamping diode and a saturable core transformer. The output from the transistors 34 (across diode 76) is fed to the chopper and to a centre tap on the pulse transformer which is operated at a frequency of about 1000 cycles.
Patent GB-896477-A (GB)
Title: Improvements in illuminated surgical instruments
IPC: A61B1/06
Filed: 1959-10-16
Abstract: 896,477. Surgical optical devices. WISBEY, J. W. Oct. 16, 1959, No. 35086/59. Class 81 (2). [Also in Groups XXXVI and XXXVII] A surgical illuminating device comprises body and handle parts B, A which are detachably connected by means forming a switch and including, on one part, a terminal rod 10 and a coaxial metal collar 8, having an insulating plug 13 with a depression and a circumferential groove 11 which extends across the plug and, on the other part, a socket 6 which engages the rod and a terminal projection 4 which engages the groove, the parts being relatively rotatable so that the projection either contacts the metal collar or is located releasably in the plug depression. The socket 6 is mounted in an insulating sleeve 2 of the handle and is connected to one wire of a twin flex 5. The projection 4 is carried by a tongue 3 which is tightly held in a longitudinal peripheral groove of the sleeve by the handle casing, and is connected to the other wire of the twin flex. After the head B of the instrument is connected to the handle, the electrical circuit for a lamp is made when the projection 4 engages the collar but is broken when relative rotation of the parts A, B brings the projection 4 into engagement with the insulating plug 13. So that coupling of the parts may be facilitated for operating the switch, the collar 8 has a flat, which is disposed on the side of the collar opposite the plug, and diametrically opposite depressions in the groove 11 for locating the projection 4 in circuitmaking position.
Patent GB-1095086-A (GB)
Title: Nitrobenzoates of basic dyes
Inventor: ANDREE FRANZ
IPC: C09B69/06
Filed: 1966-08-05
Abstract: The invention comprises nitrobenzoates of basic dyes of the diphenylmethane, triphenylmethane, xanthene or oxazine series which are soluble in alcohols but practically insoluble in water. They are obtained by adding nitrobenzoic acid or a salt thereof during or after the preparation of a composition containing a commercial basic dye of the said series.  Examples are given for the production of the salts. The products are suitable for the production of printing inks and examples are given for the production of such inks using various dyes and a resin solution of 23 parts shellac, 70 parts alcohol and 7 parts ethyl glycol.
Patent GB-309000-A (GB)
Title: Improvements in or connected with foot actuated or controlled mechanisms of self propelled vehicles, "motor boats", aircraft and the like
IPC: G05G1/60
Filed: 1927-12-29
Abstract: 309,000. Skrimshire, G. Dec. 29, 1927. Pedals, and foot-positioning devices. -A foot rest or stop 1 is provided in connection with a pedal 2 for controlling mechanism on motor vehicles, motor boats, and aircraft, and is arranged in front of the pedal as shown, so that the front of the operator's foot can rest on the stop and the amount of movement of the pedal can be controlled by flexing the foot. A heel stop 11 may be provided for positioning the foot. The stop 1 may be adjustable in height and comprises a base part 5, Fig. 3, and a slidable part 9 secured to the base by a bolt 8. According to the Provisional Specification the foot-rest may overhang at the top so as to be used in conjunction with the upper part of the toe of the boot.
Patent GB-448695-A (GB)
Title: Improvements in or relating to grass-cutting machines and the like
IPC: A01G3/06
Filed: 1934-12-07
Abstract: 448,695. Hand - operated multiple - toothed clippers. EDWARDS, E. E., and SMITH, A. H., 1, Cullum Street, Lime Street, London. Dec. 7, 1934., No. 35238. [Class 131] [See also Group I] A machine for cutting grass, hedges, &c. comprises a base-plate 2 on which are mounted a handle 27, a set of fixed knives 1, a set of pivoted knives 10 co-operating with the fixed knives, a pivoted bell-crank lever forming an operating handle 28 and a toothed quadrant 29, a pinion 31 meshing with the quadrant, a link 32 eccentrically connected to the pinion, and a lever 14 pivotally connected to the link and to a cross-bar 13 to which the ends of the movable knives 10 are pivotally connected. The gearing may be such that one stroke of the handle 28 causes one and a half revolutions of the pinion 31. The base-plate 2 is provided with a runner plate bearing on the ground, and the movable knives are pressed down by springs 24.
Patent GB-1508937-A (GB)
Title: Pressure fluid operated tool
IPC: F01C21/18
Filed: 1976-08-25
Abstract: 1508937 Rotary positive-displacement fluidmachines INGERSOLL-RAND CO 25 Aug 1976 [29 Sept 1975] 35363/76 Heading F1F [Also in Division B3]  In a pneumatic power-tool, such as a wrench, the working fluid is directed from supply passage 15 to ports 37, 38 around a spool valve 26 to port 40 and at the same time from port 37 through passage 33 and restriction 34 to upper chamber 32 of the valve. The air leaving port 40 passes to a motor along passages 41, 43, 44 and 46 to drive the rotor 21. Air also passes from passage 44 into passage 47, port 48, Figs. 6 and 2, in distributer plate 19, holes 49 in a sealing plate 20 on the rotor, and finally into cavities 50 in the rotor. Movement of the rotor then aligns the cavities 50 and ports 49 in turn with ports 53 in plate 19 and the air passes via passages 54-56 and 61 to the chamber 60 at the underside of the valve 26, the arrangement being such that at high speed (low torque) the pressure below the valve plus the force of spring 27 maintains the valve in the illustrated open position due to the large amounts of pressure fluid transferred by cavities 50. On slowing down of the motor due to increasing torque reaction, the amount of fluid transferred decreases and the pressure below the valve decreases so that the valve starts to move downwardly, aided by supply air passing through passage 42 to chamber 32, and is closed to shut-off the motor. Slow running of the motor during starting does not cause shut-off since restriction 34 only allows slow pressure build-up in chamber 32.
Patent GB-1213740-A (GB)
Title: Improvements in or relating to tape recorders
Inventor: EVANS PHILIP HENRY
IPC: G11B15/32
Filed: 1968-07-25
Abstract: 1,213,740. Tape recorders. B.S.R. Ltd. 30 July, 1969 [25 July, 1968], No. 35519/68. Heading G5R. The drive for the take-up spool comprises a pulley 26 driving the take-up spool through an endless belt 27, a friction wheel 29 driving the pulley 26 through a slipping clutch (Fig. 2), and means, e.g. a retractable friction wheel 30, for driving the friction wheel 29 from the capstan spindle 14. The pulley 26 may have two portions of different diameters to give two different speeds of spool-drive (Fig. 2).
Patent GB-835446-A (GB)
Title: Improvements in and relating to processes for the oxidation of organic compounds
Inventor: CALDWELL ALEXANDER MUIRHEAD UR
IPC: B01J23/88
Filed: 1956-11-21
Abstract: Catalysts suitable for the partial oxidation of organic compounds, particularly olefins, comprise the product obtained by melting together molybdenum trioxide and at least one of the oxides of copper, iron, calcium, magnesium and lead.  The proportion of molybdenum trioxide is from 5 to 80 molar per cent of the total oxides.  The product may be obtained by grinding a mixture of the oxides, heating to fusion, cooling and grinding, e.g. to a surface area of less than 3 sq. m./g.  It may be used as a powder or on an inert support, e.g. corundum, silica, silicon carbide or firebrick. In the examples catalyst comprising (i) CuO/MoO3 (20 : 80 molar) on corundum; (ii) CuO/MoO3 (95 : 5 molar) on corundum; (iii-v) CuO/MoO3 (93 : 7 molar) on corundum, firebrick and silicon carbide respectively are used to convert isobutene to formaldehyde.  In each case the fused oxides are ground to pass British Standard Sieve No. 100 (150 m ) and 5 g. are compounded with 30 ml. of carrier.ALSO:Olefinic hydrocarbons are partially oxidized by contact, in admixture with oxygen or a gas containing free oxygen, at elevated temperature, with a catalyst (see Group III) comprising a product obtained by melting together 5 to 80 mols. per cent of molybdenum oxide and an oxide of at least one of the metals copper, iron, calcium, magnesium and lead.  Preferred conditions are 300 DEG  to 600 DEG  C., using air as the oxidizing gas in amounts of 95 to 85 volumes per 5 to 15 volumes of olefine vapour with a contact time of 0.1 to 2 seconds.  Examples describe the conversion of isobutene to formaldehyde.
Patent GB-835037-A (GB)
Title: A hollow reinforced element
IPC: B04C5/085
Filed: 1956-11-22
Abstract: 835,037. Centrifugal separators. BAUER BROS. CO. Nov. 22, 1956 [Nov. 25, 1955], No. 35751/56. Class 23 [Also in Group XXVIII] A section of the body of a hydrocyclone includes a reticulated metal member and an interior plastic lining moulded to the member and penetrating the interstices of the metal member. The section comprises a cast iron cone 1, a conical woven wire member 6 welded to the cone, and plastic material 7 which is bonded to the cone.
Patent GB-409073-A (GB)
Title: Improvements in optical signalling apparatus
IPC: H04B10/11
Filed: 1932-12-17
Abstract: 409,073. Photophones. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany. Dec. 17, 1932, No. 35814. Convention date, Dec. 23, 1931. [Class 40 (v).] Some parts of an optical signalling apparatus are used for both transmission and reception, and the necessary changes in the other electric and optical parts are made by a single switch k, Fig. 1. For transmission an electromagnet f<1>, traversed by the signals, moves a prism d to and from a reflecting-surface c<1> and thus modulates the reflection of light incident from a source g. For reception a constant current is passed through the electromagnet of such strength the prism is pressed tightly against the reflecting surface so that the received incident light passes uninterruptedly to the selenium cell h. According to a modification, Fig. 2, the light from a source r is modulated by a movable diaphragm p. The side opposite the source has an inclined surface v which, in the position where the light from the source r is completely cut off, deflects the received light to a light-sensitive cell u.
Patent GB-1241598-A (GB)
Title: Improvements in synchromesh devices for a gear box or the like
IPC: F16D23/06
Filed: 1969-07-16
Abstract: 1,241,598. Positive clutches. REGIE NATIONALE DES USINES RENAULT, and AUTOMOBILES PEUGEOT. 16 July, 1969 [9 Aug., 1968], No. 35931/69. Heading F2C. In a split-ring synchronizer for a ratio establishing positive clutch in a change speed gear wherein a split synchronizing ring 5 has an external conical surface 6 engageable with a corresponding surface 7 on an axially slidable selector sleeve 4 and internal cam surfaces 9 engageable with corresponding cam surfaces 9<SP>1</SP> on a ring 12 rotatably fast with a gear 2, the ring 12 is connected to the gear 2 by an Oldham coupling 15 which permits the ring 12 to centre itself within the synchronizing ring 5. The intermediate member 15 of the Oldham coupling may be moulded from plastics material. The synchronizing ring 5 and ring 12 may be made from sintered metals.
Patent GB-744732-A (GB)
Title: Improvements in and relating to louvre ventilators
IPC: F24F13/08
Filed: 1953-12-28
Abstract: 744,732. Ventilators; windows. GREENWOOD'S & AIRVAC VENTILATING CO., Ltd., and HUGHES, B. D. Dec. 23, 1954 [Dec. 28, 1953], No. 35997/53. Classes 20(3) and 137. A preformed louvred ventilating frame structure for use e.g. with a glass domed ventilator of the barrel type designed to cover an opening at the ridge of a roof 2 between end walls 3, :comprises a base element 5 bolted to inserts 8 in a curb 4 around the opening and a plurality of inclined louvres 11 bolted at their inner edges to brackets 9 riveted to the base elements 5 and serving to support a cap element 10, the outer edges of the louvres 11 being bolted to a centrally disposed supporting strut 12 which engages under the outer lip of the cap element 10 and extends downwardly over a flange 5<SP>1</SP> of the base element 5. The preformed units may be made of any desired length, the number of brackets 9 and struts 12 being varied to ensure the necessary rigidity. The ends of two adjacent units are connected by means of a jointing element 20, Fig. 2, comprising inner and outer face plates 21, 22 joined by a member 23, the adjacent ends of the two units being inserted into and bolted to the opposed upright channels. Each end element 30 comprises two angle members 31, 32 joined by a channel member 23, the outwardly extending flanges being apertured at 33 for bolting to the adjacent end wall 3. The upper ends of the members 23, 23<SP>1</SP> are recessed for the reception of plates 40, 401 respectively which are disposed beneath the cap elements 10 to facilitate the anchoring of cleats 41, 41<SP>1</SP> for receiving the ends of glazing bars 42. Further anchor plates and cleats may be disposed between the ends of the assembly in which case registering apertures 45 are provided in the cap element 10. The flow of air through each unit is controlled by a panel 50 extending on the inside between the cap and the base elements and having apertures 51 each closable by a door 52 mounted on a vertical hinge 53, each door being connected to a control bar 55 by an arm 54. The bars 55 of adjacent units are linked together. Bird guards, when provided, are mounted on the brackets 9.
Patent GB-349432-A (GB)
Title: Methods of electro-deposition of zinc
IPC: C25C1/16
Filed: 1929-11-26
Abstract: 349,432. Electrolysis. TAINTON, U. C., of Evans Wallower Zinc Co., Monsanto P.O., East St. Louis, Illinois, U.S.A. Nov. 26, 1929, No. 36182. [Class 41.] Zinc, depositing.-An anode composed of an alloy of lead with a small proportion of a metal electro-negative to lead, and an electrolyte containing an inorganic colloid such as silica are employed. For the colloid a solution of silicic acid or sodium silicate may be added in the proportion of 1-5 lbs. of soluble silica per ton of zinc deposited. In addition to the inorganic colloid, an organic colloid not precipitated by zinc sulphate solution such as gum arabic or agar jelly may be present. The anode preferably contains about 1 per cent of silver, bismuth or arsenic. The electrolysis is preferably carried out in the presence of a large proportion of acid at a high current density.
Patent GB-341212-A (GB)
Title: Improvements in and connected with superheaters
IPC: F22B37/16
Filed: 1929-11-26
Abstract: 341,212. U-tube steam superheaters. BABCOCK & WILCOX, Ltd., Babcock House, Farringdon Street, London.-(Babcock & Wilcox Co. ; 85, Liberty Street, New York, U.S.A.) Nov. 26, 1929, No. 36202. [Classes 123 (ii) and 123 (iii).] A return bend 18, Fig. 2, of a U-tube superheater element is Y-shaped and the opening in the leg 24 providing access through the branches 18 to the limbs of the element is closed by a tapered plug 29 held on its seating by a screwed sleeve 27. The return bends of a superheater arranged between the tubes of a water-tube boiler project into a baffle and assist to support the superheater. The upper and lower limbs of elements 16, Fig. 5, supported upon the tubes 4 of a water-tube boiler are connected to headers 15, 20 placed out of the path of the furnace gases and supported from the boiler drum 10 by straps 32, 36.
Patent GB-900883-A (GB)
Title: Improvements in the chemical milling of magnesium
IPC: C23F1/22
Filed: 1960-10-21
Abstract: A process for chemical milling magnesium comprises treating the magnesium with a 0.1 to 20% by weight aqueous solution of an organic chelating agent selected from ethylene diamine tetra-acetic acid, diethylene triamine pentaacetic acid, hydroxyethyl ethylene diamine triacetic acid, cyclo-hexanediamine tetra acetic acid, diamino diethylether tetra acetic acid, N - (2 - hydroxycyclohexyl) - ethylenediamine triacetic acid, and their alkali metal, ammonium and amine salts.  The magnesium is immersed in the solution which is maintained at a temperature of - 5 DEG  C. to 101 DEG  C. and the pH of the solution which controls the speed of milling is regulated by the addition of the appropriate salt or salts of the chelating agent alone, or in any combination with or without the free acid or by addition of the free acid alone.