baber/WOPTO huggingface dataset:
Patent GB-962235-A (GB)
Title: Hydrogenation of nitriles
IPC: C07C209/48
Filed: 1961-03-30
Abstract: An aliphatic nitrile is treated with hydrogen in the presence of a rhodium catalyst to form an amine product containing a predominant amount of secondary amine and no tertiary amine. The reaction may be in the liquid (at 0 DEG -250 DEG C.) or vapour (100 DEG -400 DEG C.) phase; a pressure of 1 to 50 atmospheres may be used, a solvent e.g. benzene, acetic acid, butyl alcohol or hexane may be present, and the catalyst may be supported. Propionitrile is exemplified as a starting material.
Patent GB-751152-A (GB)
Title: Improvements in or relating to suspension filing systems
IPC: B42F15/00
Filed: 1954-04-23
Abstract: 751,152. Filing papers. ZIPPEL, G. A. April 23, 1954 [April 24 1953] No. 11862/54. Classes 16 and 146(1) A 'suspension filing system for folders, drawings or the like, which are suspended back upwards from a single supporting rail 14 has each folder 1 formed or provided with a suspension fitting 2 comprising a recess 4 open at the top with two opposed noses 12, 13 adapted to engage on the horizontal arms of the rail 14 which is preferably of inverted T-shape, the recess having two lateral limiting edges 15. 16 and a lower edge 17 connecting them and being wider and deeper than the width and depth of the supporting rail. As shown, the limiting edges 16 and 17 are oblique and the nose 12 is nearer the centre of gravity line than the nose 13 so that the folder may be pulled forward as in Fig. 2 and will be in equilibrium in such position and may be utilized to show position of a file which has been removed from one side thereof. The fitting 2 may be secured to the folder 1 as shown, or may be of sheet metal and provided with downwardly projecting tongues to be passed through the top of a folder and bent over to secure it in position. In an alternative construction, the fitting comprises a long strip which is inserted into a doubled over strip of cardboard or the like, with a cut-out at the position of the recess, a drawing or the like being secured to the cardboard as by glue. A number of different shape rails 14 are described, such as H, cruciform and angular and in each the horizontal arms may be squared off upwardly as at 18, 19 to assist sliding of the noses 12, 13 therealong. The rails 14 may be secured at each end to rails slidable horizontally into and out of a filing cabinet so that folders, which lie parallel with the sliding rails, can be easily examined. Tabs. A label holder of celluloid or like transparent material for use on the folder 1 so that a label can be read with the folder in the vertical and horizontal directions, when on a folder in the hanging position comprises a vertical arm 34 and resilient tongue 35 passing either side of the folder, an extension 39 to be passed through a slot 40 in the folder and bent over, and a triangular shaped portion having a horizontal surface 36 and an oblique surface 37 to receive an angular shaped paper label which can be read through either surface 36 or 37.
Patent GB-128636-A (GB)
Title: Improvements relating to Aeroplanes and Parachute Launching Devices therefor.
Inventor: CALTHROP EVERARD RICHARD
IPC: B64D25/04
Filed: 1917-08-18
Abstract: 128,636. Calthrop, E. R. Aug. 18, 1917. Parachutes. - Means for effecting a parachute descent from an aeroplane comprise a parachute mounted on the aeroplane and connected to the pilot, who is provided with means for simultaneouslv detaching himself and releasing the parachute sideways from the aeroplane. A parachute 5, Fig. 2. for example as described in Specifications 21312/14 and 111,312, is secured on a table 4 tiltable to either side about trunnions 3, by catches 6, Fig. 3, held in the locking position by rods 10 connected to a disk 12 connected by Bowden gear 16, Fig. 4, to a lever 36. The parachute is connected by a rope 44, Fig. 2, to the pilot's harness, which is attached to the seat at each side bv means of releasing- gear 23 as described in Specification 24595/14, [Class 141, Wearing-apparel], controlled by Bowden connexions 27, Fig. 4, to levers 37, 38. A fourth lever 39 actuates Bowden gear 34<1> leading to a switch 34, Fig. 2, controlling a red lamp 35 under the aeroplane, serving as a warning that the machine is descending without control. All the levers 36--39, Fig. 4, are operated simultaneously by the pilot by means of a lever 18 carrying a plate 41 engaging the four levers. The lever 18 is carried by a spindle 29 mounted in a disk 28<2> which may be rotated about a pivot 281 to actuate Bowden gear 42 for tilting the parachute table 4. When a parachute descent is to be made, the pilot first rotates the lever 18 about the pivot 28' so as to tilt the table 4 towards the side from which he intends to descend, after which he operates the lever 18 about the spindle 29, thereby actuating all the levers 36 - - 39 and detaching the releasing-gears 23 and the parachute catches 6, so that by stepping over the side of the machine he may bring his weight to bear on the parachute, the container of which is attached to the machine by a rope 4<1>, Fig. 2. To facilitate the pilot's exit from the machine, bars may be projected from the sides of the machine to serve as steps, by means of Bowden gear 48, Fig. 4, connected to the disk 28<2>. Means are provided for detaching the release gears 23 and parachute catches 6 directly by hand if the Bowden ears should be damaged. In a modification, the Bowden gear 16 and the release gears 23 are operated by rod and lever connexions to a hand-lever arranged behind the pilot and adapted also to tilt the table 4.
Patent GB-195286-A (GB)
Title: Improvements in and connected with slide rules and the like
IPC: G06G1/12
Filed: 1922-04-28
Abstract: 195,286. Anido, A. J. April 28, 1922. Slide rules.-A slide rule for the purpose of facilitating the evaluation of members raised to any power positive or negative, integral or fractional has provided in association with the ordinary scales which include a uniformly divided scale A and logarithic scales C, D, G, H, a scale E uniformly graduated in a direction opposite to that of the scale A. As shown the logarithic scales C, D and the uniformly graded scale A, E are of the same length with the scales A, E arranged on opposite sides of the logarithmic scales. Examples of the use of the slide rule are set forth in the Specification.
Patent GB-1039224-A (GB)
Title: Improvements relating to heat treatment using microwave electromagnetic radiation
Inventor: HOSKIN WILLIAM JOHN
IPC: H05B6/78
Filed: 1963-03-27
Abstract: 1,039,224. Microwave heating apparatus. ELLIOTT ELECTRONIC TUBES Ltd. March 18, 1964 [March 27, 1963], No. 12052/63. Heading H5H. Laminar material 51, e.g. paper, is heated by conveying it on a plate 52 past a member 53 which is connected to a microwave energy source, at the resonant frequency of the member, by a coaxial feeder or waveguide, the plate 52 being earthed. The arrangement relies on strip line conduction, a travelling wave field being established between the members 52, 53 which are of non-magnetic electrically-conducting metal. The field may be made monotonic by using a matched load at the end of members 52, 53 instead of an open or short-circuit. Member 52 may be replaced by a roller 54, Fig. 2 (not shown), and member 53 by a generally U-shaped waveguide 55, which opens out on the strip 51 and has a ridge 55b projecting from its base for concentrating the energy, Fig. 3 (not shown). Members 52, 54 may be replaced by metal strip or foil.
Patent GB-708441-A (GB)
Title: Synthesis of oxygenated organic compounds
Inventor: PARKER PAUL THOMAS
IPC: C07C45/50
Filed: 1951-05-23
Abstract: Oxygenated organic compounds are obtained by reacting olefines in the liquid phase with carbon monoxide and hydrogen at elevated temperature and pressure, the reaction being carried out in the presence of between 0.1 and 5 per cent by volume, based on the olefins, of an aqueous solution of a water-soluble salt of cobalt, iron or nickel and in the presence of up to 2.5 per cent by weight based on the olefin of an emulsifier, preferably an amount of up to 2 per cent by weight of the olefin.  The preferred emulsifiers are non-ionic emulsifiers such as the polyether alcohols but other emulsifiers such as soaps, alkyl sulphates, sulphonates, glycol esters, sulphonated castor oil, monosulphates of mono-glycerides, alkyl aryl sulphonates or the amine salts of fatty acids may be employed.  The water-soluble salt of cobalt, iron, or nickel may be an inorganic salt such as the chloride, nitrate, iodide or bromide or an organic salt such as the acetate, propionate, benzoate or naphthenate.  The synthesis may be carried out batchwise or continuously and under conventional conditions for the Oxo process and the product may be hydrogenated to convert the aldehydes obtained to the corresponding alcohols.  In an example the reaction is carried out with a C7 olefin fraction (obtained by fractionation of a product obtained by the polymerization of propylene and a mixture of equal volumes of hydrogen and carbon monoxide at 320 DEG  F. and 2700-2900 pounds per square inch pressure and a table is given comparing the reaction rates when a saturated aqueous solution of cobalt acetate in a concentration of 2 per cent by volume of olefin is employed as catalyst in the presence of various concentrations of a polyether alcohol as emulsifier.  Comparative results are also given when cobalt oleate and cobalt metal are used and when cobalt acetate solution is used in the absence of an emulsifier.  Experiments are also described which show that good yields of alcohol are obtainable when the aqueous solutions are employed as catalyst in the absence of an emulsifier but in these cases the reaction rate is lower.  In these experiments diisobutylene is reacted with a gas mixture containing hydrogen and carbon monoxide in the volume ratio of 1.2 : 1 at 272 DEG  F. and 300 lb. per square inch pressure and using an aqueous solution of cobaltous chloride hexahydrate and of ferric chloride hexahydrate respectively as catalyst, the products being then hydrogenated over a nickel on kieselguhr catalyst at 350 DEG  F. and 2700 lb. per square inch hydrogen pressure to form C9 alcohols.
Patent GB-831032-A (GB)
Title: Sulphathiodiazoles
Filed: 1958-04-16
Abstract: The invention comprises the 3-ethyl-, 3-b -methoxyethyl-, 3-o- and -p-chlorobenzyl-, 3-methyl -, 3 - n - propyl -, 3 - isopropyl -, 3 - b -ethoxyethyl -, 3 - phenyl -, 3 - p - chlorophenyl - and 3 - benzyl - 5 - sulphanilamido-1 : 2 : 4-thiadiazoles, and a process for preparing 5-sulphanilamido-1 : 2 : 4-thiadiazoles, optionally substituted in the 3-position by an alkyl, alkoxyalkyl, alkyl-mercapto-alkyl, aryl or aralkyl or haloaryl or haloaralkyl substituent, by treating the corresponding 5-halo-1 : 2 : 4-thiadiazole with a benzene-sulphonamide bearing an amino group or a group convertible thereto by hydrolysis or reduction in the para-position, followed by conversion of the para-substituent if applicable.  The condensation is preferably effected in the presence of an acid-binding agent such as an alkali-metal carbonate or by using an alkali-metal derivative of the sulphonamide, in an inert diluent at 100-200 DEG  C., optionally in the presence of copper powder.  5 - p - Acetylamino - and 5 - p - nitro - benzenesulphonamido - 1 : 2 : 4 - thiadiazoles corresponding to the above products are obtained as intermediates.  3 - n - Propyl - and 3 - isopropyl - 5 - chloro-1 : 2 : 4 - thiadiazole are made by treating n-butyl amidine and isobutyl amidine respectively with perchloromethyl mercaptan.
Patent GB-513405-A (GB)
Title: Improvements in precision grinding machines
IPC: B24B47/10
Filed: 1939-04-22
Abstract: 513,405. Grinding. CHURCHILL MACHINE TOOL CO., Ltd., and ASBRIDGE, H. H. April 22, 1939, No. 12184. [Class 60] The grinding-wheel b of a precision-grinding machine is mounted on a slide d and is driven by an electromotor h carried by a separate slide i which runs on antifriction bearings and is coupled to the slide d, the arrangement isolating the grinding-wheel from the vibrations of the motor. The slides may be coupled by a link m or a resilient member. The drive may be transmitted by rope-pulleys f, g, the motor being adjustable to tension the ropes.
Patent GB-801126-A (GB)
Title: Production of terephthalic and isophthalic acids
Inventor: GASSON EDWARD JAMES
IPC: C07C63/24
Filed: 1956-04-20
Abstract: Isophthalic and/or terephthalic acids are prepared by heating ammonium isophthalate and/or ammonium terephthalate to a temperature at which ammonia is evolved and continuously removing the evolved ammonia.  The salt may be heated to 140-250 DEG  C. in the dry state or suspended in an inert liquid such as kerosene or diisopropylbenzene or dissolved in an inert solvent or partial solvent such as water.  The mixture is agitated and the liberated ammonia removed by passing an inert gas such as hydrogen, nitrogen, carbon dioxide or steam through the reaction mixture.  The reaction may be carried out at normal, above or below atmospheric pressure and at super-atmospheric pressures the reaction may be carried out in the presence of a volatile liquid such as water which provides its vapour as the inert gas.  In examples: (i) diammonium isophthalate is heated dry and with diisopropylbenzene at 180 DEG  and 196 DEG  C. respectively in the presence of nitrogen; (ii) as (i) using diammonium terephthalate; (iii) diammonium iso-phthalate is heated at 180 DEG  C. in the presence of paraffin with nitrogen as the inert gas.
Patent GB-508422-A (GB)
Title: Improvements relating to drop hammers
IPC: B21J7/44
Filed: 1938-04-23
Abstract: 508,422. Friction-lift drop-hammers. BRETTS PATENT LIFTER CO., Ltd., and PETERS, G. E. April 23, 1938, No. 12242. [Class 83 (iv)] The lifting mechanism comprises a pair of arms a, b interconnected by a sleeve e embracing the drum shaft f and a member. g to which the lifting - strap d is attached, a guide pulley c for the strap mounted on the sleeve, and a third arm l mounted on the shaft on the side of the friction drum k opposite from the arms a, band rigidly connected to these arms at its outer end by a member m. The arms carry an operating spindle i for the brake shoe as described in Specification 508,421. The arms a, b may be formed integrally. The sleeve e may be in one piece or in halves one part of which is integral with the arms. If two friction drums are used the arms a, b are arranged between them and 'a fourth arm is employed.
Patent GB-1163511-A (GB)
Title: Improvements in Papermakers Felts
IPC: D03D1/00
Filed: 1968-03-13
Abstract: 1,163,511. Papermakers' felt; treating textiles. ALBANY FELT CO. 13 March, 1968 [5 April, 1967], No. 12253/68. Headings DIK and D1P. A papermakers felt comprises lengthwise yarns of continuous filament nylon, and crosswise yarns consisting of two-ply asbestos yarns wrapped round a wire of copper nickel alloy. The cross-wise yarns are disposed in two layers so as to lie in plane displaced from the neutral axis of the fabric and thereby resist forces tending to bend or wrinkle the fabric. The fabric may be woven flat and joined into an endless belt after weaving (in which case the crosswise yarns are weft) or may be woven as a tube, from which pieces are cut to form belts (in which case the cross-wise yarns are warp). The warp and weft may be bonded together by treating the fabric with resorcinolformaldehyde resin and acrylic resin or with urethane resin.
Patent GB-220056-A (GB)
Title: Improvements in dough working and dividing machines
IPC: A21C3/02
Filed: 1923-05-07
Abstract: 220,056. Embrey, H. P. May 7, 1923. No Patent granted (Sealing fee not paid). Stream - cutting machines; rolling- machines; feeding and measuring.-A dough working machine for producing a strip of dough of substantially uniform thickness and density comprises a hopper 1, provided with delivery rolls 2, 3 for impelling a stream of dough towards its delivery opening, and a regulating roller 4, acting in opposition to the delivery rolls, which separates dough in excess of that required to form the strip from the stream passing to the opening and returns it to the hopper. After leaving the rolls 2, 3, the strip of dough passes through pairs of compressing and stretching rollers 5, 5 - - 7, all being provided with scrapers B, which rotate at successively increasing peripheral speeds and have gradually decreasing spacings. Finally, the strip is divided into pieces of determined weight by a rotary cutter 9, which is driven through a variable speed gear and is also given an intermittent motion, said pieces then being conveyed to a moulder or coiling machine by a conveyer 41 so as to leave intervals between the successive pieces. In a modification, Fig. 2, a knife 13 is adapted to sever from the dough that which is required to form the strip, while a plate 15 and rollers 16, 2 are provided to return the excess dough to the hopper. The hopper is provided with rollers 12 for impelling the dough towards the delivery rolls, while the width of the delivered strip of dough is determined by adjustable cutting discs 17, the excess dough trimmed off being diverted by a deflector 18 to the roller 16 and hopper 1. Specification 218,395 is referred to.
Patent GB-472036-A (GB)
Title: Improvement in electric arc welding apparatus
IPC: B23K35/04
Filed: 1937-04-29
Abstract: 472,036. Uniting by fusion. BRITISH THOMSON-HOUSTON CO., Ltd. April 29, 1937, No. 12265. Convention date, April 29, 1936. [Class 83 (iv)] In an arc welding apparatus of the kind in which a bare wire electrode is continuously fed to the work and a flux coating applied during feed of the wire, an axially movable sleeve 6 encompasses the electrode 2 concentrically, the space 10 between the electrode and sleeve being connected to a pump for conveying the coating material to the electrode. The electrode is fed by pinions 3, 4 and the sleeve is fed forwards at the same speed as the electrode to the point 11 and is then retracted at greater speed, the pump supplying the paste to the space 10 through a flexible armoured hose 8, during the rearward motion.
Patent GB-555306-A (GB)
Title: Improvements in or relating to switches operated by web-breakage
IPC: B41F33/18
Filed: 1942-09-01
Abstract: 555,306. Feeding webs. IGRANIC ELECTRIC CO., Ltd. Sept. 1, 1942, No. 12319. Convention date, Sept. 12, 1941. [Class 100 (i)] Switch mechanism for stopping a printing-press or other web-fed machine upon breakage of the web comprises a switch 8, secured to one of the side frames 2 of the press, having a pair of contacts 12 movable into engagement with fixed contacts 13 by buttons 18 actuated by an arm 7 on a shaft 6 extending between the side frames 1, 2 and having secured thereto an arm 4 provided with a curved shoe 5 held in contact with the web by a spring 33 on the shaft. The shaft 6 comprises a central part 22 of square section on which the arm 4 is adjustably secured, and end portions 20, 21 mounted in ball bearings 24, 27. The arm 7 is adjustable angularly relatively to the arm 4 by means of a spring pin 37 carried by a collar 38 fixed to the shaft portion 21 and engaging one of a series of holes 40 in a hub portion 36 of the arm 7. The arm 4 may be held clear of the web during a web threading operation, by the engagement with the arm 7 of a plunger 45 which is pressed inwardly against the action of a spring 49 and held in that position by turning it so that a pin 50 having passed through a slot 51 in a lug 47 engages the rear side of the lug.
Patent GB-732408-A (GB)
Title: Improvements in or relating to electric motor regulating apparatus
IPC: H02P1/06
Filed: 1953-05-05
Abstract: 732,408. Control of D.C. motors; controllers. KAYE, E., and ARNOT, A. E. R. May 4, 1954 [May 5, 1953], No. 12461/53. Class 38 (3). A regulating resistance in series with the armature of a motor is adapted to be placed gradually in circuit by opening a number of contacts in sequence before the motor circuit is broken, the resistance being graded so that, when the motor is carrying maximum current and a contact is opened, the voltage across the contact is less than the minimum arcing voltage of the material of which the contact is made. The contacts for the regulating resistance are mounted on a number of resilient arms 12-16, a further spring contact arm 27 being connected to the armature 29 of the motor. A rock-shaft 37 carries lever 40 bearing upon push-rod 41 which is adapted to engage the arm 27, so that pressure upon accelerator pedal 43 first closes contacts 50, 51, which are made of arc-resistant material. Further movement of the pedal closes contacts 52, 53, and so on -throughout the series until closure of contacts 58, 59 connects the motor directly to the supply battery 32. If the pedal is depressed still further, a push rod 71 opens contacts 73, 74 to insert section 65 of the fieldregulating resistance, and, thereafter, other sections of the field-resistance are inserted in sequence. Stops are provided for limiting the movements of the field-resistance contacts, and stops are located behind the armature contacts to prevent retraction thereof beyond the positions in which they attain an adequate degree of separation. If the pedal 43 is allowed to rise beyond the position at which the contacts 50, 51 open, contacts 84, 85 close to connect a rheostatic braking resistance 86, 87 across the armature of the motor. The braking resistance is reduced by allowing the pedal to rise still further. A reversing switch 94 is interlocked with the rock-shaft 37 so. that it cannot be operated when the rock-shaft is moved to close the motor circuit. For this purpose, the reversing switch has an operating spindle extending at right angles to the rockshaft and carrying a locking disc with two slots, and the rocking-shaft carries an arm which enters one or other of the slots when it is operated to close the motor circuit, Figs. 1, 2 (not shown). If the battery has an output of twenty volts, the stalling current of the motor being two hundred amperes, and it is desired to limit the arcing voltage of the armature contacts, which are made of copper, to twelve volts, then it is arranged that the resistance incorporated by the breaking of the contacts is one and a half times the total resistance already in circuit. Hence, the section 33 has a value one and a half times the armature resistance, and the resistance of the next section is one and a half times the sum of the resistances of the section 33 and the armature, and so on throughout the series.
Patent GB-125123-A (GB)
IPC: B64C7/00
Abstract: 125,123. Dunlop Rubber Co., and Macbeth, C. May 31, 1916 Aerial machines adapted to travel also on land; stopping way.-A device for reducing the air resistance of an aeroplane wheel consists of a tapered canvas-covered frame arranged behind the wheel. Fig. 1 shows a wood or metal frame A, E, E<1>, F supported by U-shaped members B secured to rotary clips C on the axle. The frame is covered with canvas and, in addition, a lining K is supported upon U-shaped or channel members G close behind the wheel tyre. The device may be raised when the machine is about to alight, by connexions to a loop M; or it may be raised automatically by a spring P when the air pressure on vanes R diminishes as the speed is reduced. A tyrescraper N may be provided on the device, which may also be fitted with a spoon brake S or with a brake comprising an inflatable pad U. Fig. 4 shows a modification in which the members B are pivoted to the ends of rigid arms X so that a brake block Z is applied to the wheel when the rear part of the device is raised; or the arms X may be moved to apply the brake.