baber/WOPTO huggingface dataset:
Patent GB-940954-A (GB)
Title: Process for dyeing nitrogenous or cellulosic fibrous materials
Inventor: SEIDEL FELIX
IPC: D06P1/12
Filed: 1960-02-11
Abstract: Nitrogenous fibres such as wool or polyamide fibres, or fibres of cellulose or cellulose derivatives such as acetyl cellulose, or mixtures of such fibres are dyed by treating them with diketene and then with a diazonium salt capable of coupling.  The diketene is preferably applied in an inert solvent such as benzene, containing pyridine as a catalyst, and reaction between the diketene and the fibre is said to take place.  The diazonium salt may be that of p-toluidine, p-nitraniline or benzidine.  Treatment with the diketene solution is preferably effected at the boil and the fibres are preferably washed with benzene, methanol and water prior to immersion in a solution of the diazonium salt.
Patent GB-632983-A (GB)
Title: Improvements in or relating to impregnated fibrous glass products
IPC: C04B26/18
Filed: 1944-03-16
Abstract: A fibrous, felted, spun or woven glass base is impregnated with a monomeric ester of a glycol and two molecular equivalents of the half ester of carbonic acid with a monohydric mono-unsaturated alcohol containing an olefinic double bond attached to the second carbon atom from the hydroxyl group, and heated to polymerize the ester. Suitable glycols are ethylene, a - or b -propylene, butylene, diethylene, triethylene, or hexamethylene.  Suitable unsaturated alcohols are vinyl, allyl, methallyl, crotyl, methylvinylcarbinyl, isopropenyl, a -ethylallyl, b -ethylallyl, dimethylallyl, hexenyl, geranyl, or linallyl.  The ester may be copolymerized with another unsaturated compound, e.g. vinyl acetate, methyl methacrylate, butadiene, 2-chlorobutadiene, methyl acrylate, acrylonitrile, vinyl chloride or styrene.  An oxygen catalyst, e.g. benzoyl, lauryl, tetralin or acetone peroxide or a peroxide of methyl ethyl ketone, methyl butyl ketone or methyl tert.-butyl ketone may be added to the impregnant.  The fibrous glass sheets may be used between glass or metal plates.  Several sheets of fibrous glass may be laminated. Preferably the sheets are thin.  A number of examples are given of the preparation of laminated "Fibreglass" cloth sheets using a mixture of ethylene glycol bis-(allyl carbonate) and benzoyl peroxide.  In one example the benzoyl peroxide was omitted.  The products are chemically resistant and may be used for building materials, furniture cabinets, electrical panels, brake bands, wall boards, electrical insulations, veneer, dishes, lamp shades, clutch faces, table tops or floor coverings.  The Specification as open to inspection under Sect. 91 includes generally the use of unsaturated esters of polyacids.  In addition to the glycols mentioned above it refers to glycerol, methyl glycerol, resorcinol, hydroquinone, trithanolamine, and ethylene or propylene diamine.  Additional unsaturated alcohols mentioned are citronellyl, linoleyl and oleyl. Acids other than carbonic which are mentioned are phthalic, adipic, succinic, oxalic, sulphuric, phosphoric, titanic, silicic, citric, tartaric, maleic, fumaric, itaconic and malonic.  Compounds described in Specifications 575,386, 576,083 and 595,056 are also referred to. Esters of unsaturated alcohols and simple polybasic acids, e.g. oxalic, maleic, malonic, adipic, succinic, itaconic, citric, tartaric, fumaric, phthalic, sulphonic, carbonic, silicic, phosphoric, titanic, diglycolic or dilactic may also be used. Allyl or methallyl esters of phthalamide or adipamide are referred to and reaction products of aldehydes with unsaturated carbamates, phthalamates or oxamates.  Specification 576,153 is referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-148594-A (GB)
Title: Improvements in or relating to connections for bedstead frames and for other purposes
IPC: F16B12/58
Filed: 1919-02-28
Abstract: 148,594. Coates, H. B. Feb. 28, 1919. Joints and connexions.-In a stud-and-socket connexion for parts of furniture, boxes, portable buildings, greenhouses, &c., both the male and female members are rigidly secured to the parts to be connected, and the female member consists of a fitting, in one or two parts, having a vertical upper portion and a vertical lower portion each with a keyhole or wedge-shaped slot, and one or more parts bent inwardly at right-angles to the main portion. Fig. 1 shows a two-part fitting 3, 4 with slots 3<a> 4<a>, while Fig. 3 shows a one part fitting. The modification shown in Fig. 7 is constructed by slitting the angle-iron A and bending the parts a, a<1>, while in Fig. 11 the bar B is enclosed within the extensions 5, 5<a>, 5<b>, 5<c>. A construction is shown in Fig. 13 whereby two members C, D may be connected together and to the stud-carrying member.
Patent GB-1497801-A (GB)
Title: Magnetic suspension of rotors
IPC: G01P3/481
Filed: 1974-02-04
Abstract: 1497801 Measuring fluid-flow ROSEMOUNT ENG CO Ltd 31 Jan 1975 [4 Feb 1974] 05092/74 Heading G1R [Also in Division G3] A rotor, e.g. of fluid-flow responsive apparatus, is supported by an electromagnetic bearing energized in response to any deviation of the rotor from a desired position, as detected by a Hall device which is energized with a current proportional to that which energizes the electromagnet. As shown the apparatus is an anemometer and has upper and lower stationary "pot shaped" electromagnets 21, 14 which co-operate with ferromagnetic elements 27, 30 having concentric annular poles. These elements may be permanent magnets and their poles are of different diameter to those of the stationary magnets, as shown, to provide lateral stability. The bearings are in opposition, i.e. the upper bearing supports the rotor and the pull of the lower bearing. An eddy current brake is provided, comprising a copper disc 35 attached to the rotor and stationary electromagnets 36. The disc has holes near its periphery through which light is directed on to a photo-cell, the resultant pulses being integrated to give an analogue speed signal and also to energize the brake so as to maintain the speed substantially constant. This energizing current is a measure of the driving force on the rotor, i.e. the fluid-flow which the device measures, and is displayed on an ammeter Fig. 3, (not shown). Two alternative embodiments are described, in which the axis of the rotor is horizontal. Fig. 8 shows the arrangement whereby the electromagnet coil 115 is energized according to the difference between the output of high gain amplifier 114 and a reference 118 which represents the desired value of the gap. 114 compares the output of the Hall device with the current in 115 and energizes the device via 116.
Patent GB-1245999-A (GB)
Title: An integrated testing device and package for reagent
Inventor: ELFAST ROYAL ALBERT JR
IPC: G01N33/52
Filed: 1969-01-30
Abstract: 1,245,999. Packaging reagent-containing absorbent pads. R. A. ELFAST, JUN. 30 Jan., 1969, No. 5124/69. Heading B8C. [Also in Division B1]  A package for use in testing a liquid, e.g. urine, comprises a pad 12 (Fig. 3) of liquidabsorbing material, such as cotton wool or porous paper, which contains a colour-change reagent, the pad being attached to a strip 10 of sheet material and being protected, during storage, by a covering leaf 14. The strip 10 and the covering leaf are each made of a laminate of aluminium foil and a plastics material layer. The leaf 14 is sealed to the strip 10 by two longitudinal and two transverse welds. The covering leaf may be formed by folding the strip 10 over on itself (Fig. 2, not shown). In order to carry out a test, the covering leaf is removed, and the sensitized pad is dipped in the liquid to be tested. If the pad does not contain a light, air and/or moisture-sensitive reagent, the edges of the package need not be sealed; and the test can be carried out without removing the covering leaf. The package may comprise a series of pads along the strip (Fig. 5, not shown), each pad containing a different reagent. Fig. 9 shows a pad comprising a bag made of two layers 17, 18 of liquid-absorbent material, the bag being divided by partition walls 20, 21 into three compartments which may contain differentreagents-thus kept separate until the test is made.
Patent GB-1254822-A (GB)
Title: Improvements in and relating to a method of and device for erecting cartons
IPC: B31B3/46
Filed: 1970-02-03
Abstract: 1,254,822. Carton erecting machine. AKERLUNO & RAUSING A.B. 3 Feb., 1970 [12 Feb., 1969], No. 5138/70. Heading B5D. A machine for erecting a carton from a blank (Fig. 1), having a base portion (1), side wall portions (2, 3) extending from the base portion (1), corner portions (4, 5, 6) connecting adjacent side wall portions (2, 3) and a marginal flange (7-11) extending from the top edges of the side wall and corner portions, comprises a vertically reciprocating plunger 12 and a mould 13. The mould 13 comprises two opposed bars 27 having notches 28 adapted to guide the corner portions (4-6) of the blank into the desired position, a carton erecting ring 29 and a press seat 33 on which the marginal flange is pressed outwards. The plunger is divided into two portions 19, 20 biased apart by a compression spring 23. The bottom of the mould 13 includes a plate 32 which is depressable against the action of a spring 34 and which abuts against a frame member 14 of the machine when the marginal flange of the erected blank is positioned opposite the top of the press seat 33. Leaf springs 52 clamped between both portions 19, 20 of the plunger 12 ease the marginal flange of the carton outwardly. Prior to being placed on a guide ring 26 for engagement with the plunger 12, the blank is passed through a heating station at which selected portions of the blank are heated. Fingers 30 are disposed immediately below the carton erecting ring 29 such that an erected carton is pulled off the plunger 12 during its ascending movement by engagement of the top side of the out turned marginal flange with these fingers 30. The erected carton is then blown out through a lateral opening (51, Fig. 6) in the die by a jet of compressed air from a nozzle 36.
Patent GB-821165-A (GB)
Title: Track laying crane with trolley track supports
Inventor: BRANDES HERMANN
IPC: E01B29/02
Filed: 1957-02-15
Abstract: 821,165. Track laying machines. KRANBAU EBERSWALDE VEB. Feb. 15, 1957, No. 5225/57. Classes 78(4) and 104 (2). A two-armed trolley track support 4 is tiltably mounted on bearings 3 and platform 2 rotatably mounted on an undercarriage 1, electric doubleacting hydraulic cylinders 5 being hingedly mounted between the support and platform on each side of the support bearings. A trolley 6 is moved along tracks 4a by a cable and winch 7. The trolley hingedly and pivotally supports a track carrier 12 which carries six manually-operable rail grippers and is guided by one flanged guide-roller 14a, 14b at each end co-operating with the under surface of flanges of the trolley track 4a. The guide roller is pressed into engagement by movement of a ball 16 in a channel on the lower side of the track carrier when the carrier is tilted initially or when the trolley track support tilts. The undercarriage has side guide shoes and sliding supports 25 which co-operate with guide shoes 24 at the ends of the platform. The platform has side walls 19 and the undercarriage has end brackets 20. The platform is pivoted by hydraulic cylinders hingedly mounted between the platform and undercarriage.
Patent GB-1203791-A (GB)
Title: Electrically controlled brake
Inventor: WEBB DAVID JOHN
IPC: F16D49/16
Filed: 1967-02-03
Abstract: 1,203,791. Electrically-controlled brakes; hydraulically-released brakes. ELLISTONEVANS & JACKSON Ltd. 26 Jan., 1968 [3 Feb., 1967], No. 5234/67. Headings F2E and F2F. In a spring-applied, electro-hydraulically released external shoe-drum brake, a pair of pivoted brake arms 14, 15, each carrying a brake shoe 18, are adapted to be actuated by means of a lever arm 26 having a plurality of attachment points spaced apart in the direction of the length of the lever arm for connection to the electro-hydraulic release mechanism 21 having a built-in brake applying spring (not shown). When the electro-hydraulic device is actuated the piston-rod 24 is forced upwardly to override the action of the brake-applying spring and cause the lever arm 26 to turn in a clockwise direction to effect separation of the brake arms 14, 15 and release the brake. When the energizing current is broken, the spring of the device 21 returns the piston 24 to the position shown and reapplies the brake. A manual overriding brake release is provided wherein the lever arm 26 is extended by a release arm 43. By selecting the coupling points 36 or 37 and the coupling points 41 or 42 a variety of lever ratios may be achieved.
Patent GB-1394305-A (GB)
Title: Reinforcing tubes
IPC: B29C53/66
Filed: 1973-02-02
Abstract: 1394305 Covering cores by winding VERA FABRIKKER AS 2 Feb 1973 [4 Feb 1972] 5264/73 Heading B8G [Also in Division F2] In order to prevent a plastics pipe from developing cracks in the direction of a roving reinforcement, during the shrinking period, one, but preferably two, reinforcing rovings are guided into zig-zag paths around a rotating mandrel shell 1, by reciprocating guides 8 and 11. The guides may be moved in opposition under the control of hydraulic or pneumatic cylinders 9 and 12. Preferably, the mandrel, as well as rotating, moves continuously in an axial direction towards a curing furnace 4. In order to give the rovings a constant inclination to the mean spiral direction, the movements of the guides 8 and 11 are appropriately more rapid in the direction of axial travel of the mandrel, than in the opposite direction. The plastics material may be applied before the rovings reach the mandrel, by passing them through a bath of curable plastics or, alternatively, after they have been applied to the mandrel. The finished pipe may have an internal or external thermoplastics liner. Besides the rovings, other forms of fibrous reinforcement may be incorporated, into it. The roving type material used may be introduced as a band.
Patent GB-433555-A (GB)
Title: Improvements in or relating to tuning devices for use with wireless receiving apparatus
IPC: H03G3/26
Filed: 1934-02-17
Abstract: 433,555. Wireless receiving-apparatus. NADEN, J. H., 12, Heath Hurst Road, and GALLOWAY, C. G. H., 7B, Prince Arthur Road, both in Hampstead, London. Feb. 17, 1934, No. 5302. [Class 40 (v)] The tuning control of a radio receiver is so arranged that the initial movement renders the loud - speaker inoperative during the changeover from one station to another. As shown in the Figure, a control lever 3 used for approximate tuning of a variable condenser is rotatably mounted on the sleeve 4 which receives and is secured to the condenser spindle. By means of a rod 9, movement of the lever 3 rotates a disc 11 which carries contacts 12, the latter being opened when the disc is rotated, due to pressure of one or other of the contacts against the member 14 secured to the sleeve 4. The rod 9 moves in a slot 10 in the disc 6 which is secured on sleeve 4 thus providing a lost-motion device between the lever 3 and condenser control spindle. The loudspeaker circuit is closed as soon as the lever 3 is released. As an alternative the lost motion arrangement may be a transverse pin through the condenser spindle engaging in a slot in the sleeve carrying the lever 3.
Patent GB-697032-A (GB)
Title: Improvements in or relating to the manufacture of electric discharge devices
IPC: H01J21/36
Filed: 1951-03-05
Abstract: 697,032. Thermionic valves. M-O VALVE CO., Ltd., and WIDDONSON, A. E. Feb. 29, 1952 [March 5, 1951], No. 5345/51. Class 39(i) An electrode assembly is mounted in a tubular metal member so that good mechanical connection is made between the two at the outer end, and then a soft solder joint made between them at the inner end. The example shown is a high-frequency triode, of which the first electrode to be mounted in position is the grid 2. The anode 3 is then mounted in a tubular support 6, and has resilient fingers 10 to hold it in position; the support has an oblique outer end, so that precise registration of one part in the other can be carried out, after which the parts are welded together. Rings 8 and 9 of pure tin are provided between the inner ends of anode 3 and support 6 for subsequent soldering. The cathode 1 is inserted from the other side of the envelope, and is supported from a metal tube 16 via wires 15 and another tube 14. Tubes 14 and 16 fit closely inside a metal envelope part 11, and tube 16 is first spot-welded and then brazed to tube 11 before evacuating. During normal baking, the tin rings melt to form a soldered joint between the electrodes and their respective tubular supports, so that a short highconductivity path is provided between the electrodes and their respective disc seals 7 and 12.
Patent GB-712350-A (GB)
Title: Improvements relating to hammer mills
IPC: B02C13/26
Filed: 1952-03-03
Abstract: 712,350. Hammer mills. APEX CONSTRUCTION, Ltd., and PECK, W. C. May 28, 1953 [March 3, 1952], No. 5562/52. Class 59 [Also in Group XXIV] A hammer mill comprises a grinding chamber 1 provided with a part 1a which can be removed to provide access to the interior of the grinding chamber, a rotor which is driven by an electric motor 7 the circuit of which includes a limit switch 5 automatically operable to break the circuit whenever the grinding chamber is opened, and an outlet from the grinding chamber, a screen 6 being removably fitted in the outlet and a screen 8 of coarser mesh being fixed at the bottom of the grinding chamber. The motor 7 is reversible and drives the rotor through a belt and pulley drive which is protected by guards 15, 16 which operate limit switches interlocking the motor circuit so as to prevent the mill from operating when the guards are out of position. The part 1a forms the bottom of a feed shoot 3 provided with a hinged flap 17 to prevent material being ejected from the mill by the rotor hammers 10. and with a grid 18 to prevent the hand of an operator being passed down the shoot. The feed device may, however, lead into the side of the grinding chamber in which case it incorporates a bent duct shaped to prevent an operator from putting his hand into the chamber. The hammers 10 may be fixed or swinging and may each have a knife edge on one side and a flat edge on the other so that the mill can provide two types of action by reversing the motor 7. The screen 8 is extended to form a flanged opening for an air filter 9. A brake can be provided to stop rotation of the hammers when the part 1a of the chamber is removed. The feed pan 19 of the mill can be fed from a drum tipper and stocking.
Patent GB-150238-A (GB)
Title: Improved scavenging device for combustion engines
IPC: F02B1/00
Filed: 1920-02-25
Abstract: 150,238. North British Diesel Engine Works, Ltd., and Maclagan, J. C. M. Feb. 25, 1920. Valves.-Relates to engines of the type in which the piston-rod has a part B of reduced diameter surrounded by a sleeve C which is secured to the rod, and has two sets of ports F, G, the set F communicating with the interior of the cylinder, and the set G with ports H in a sleeve J in the cylinder cover K, so that at the end of the working stroke scavenging air from an annular chamber L may pass to the cylinder by way of the ports H, G, the space between the part B of the piston-rod and the sleeve C, and the ports F. According to the invention, the ports in the set F are staggered peripherallv with respect to the ports in the set G, so that they will not register with the ports H on a continued downward motion of the piston rod, and thereby open the chamber L to exhaust.
Patent GB-802137-A (GB)
Title: Novel dienol-ethers and a process for the manufacture of same
IPC: C07C45/29
Filed: 1956-08-29
Abstract: The invention comprises 3,8-dimethyl-2,9-dialkoxy-decapentaene-1,3,5,7,9's and the corresponding decatetraene-1,3,7,9-yne-5's and a process for the manufacture thereof which comprises condensing 2,7-dimethyl-octadien-2,6-yne-4-dial-1,8 with a methyl magnesium halide in a Grignard reaction and hydrolysing the product, converting the hydroxy groups to keto groups in the so-formed 3,8-dimethyl-2,9-dihydroxy-decadiene-3,7-yne-5 by treating same in an inert solvent with manganese dioxide, ketalising the resulting 2,9-dioxo compound with an orthoformic alkyl ester, heating the resulting ketal with phosphorus oxychloride in the presence of excess pyridine and, if necessary, hydrogenating the resulting 3,8-dimethyl-2,9-dialkoxy - decatetraene - 1,3,7,9 - yne - 5 in the presence of a palladium/lead/calcium carbonate catalyst to reduce the triple bond to a double bond.  An example describes the preparation of 3,8 - dimethyl - 2,9 - diethoxy - decapentaene - 1,3,5,7,9. Specification 802,138 is referred to.
Patent GB-479483-A (GB)
Title: Improvements in and relating to fuels, and more particularly to fuels suitable for use in welding and cutting metals
IPC: C10L3/00
Filed: 1937-02-25
Abstract: 479,483. Gaseous mixtures. CARROLL, C. F. Feb. 25, 1937, No. 5724. Convention date, Feb. 25, 1936. [Class 55 (ii)] Gaseous fuel suitable for use in welding and cutting metals consists of propane or butane or a mixture thereof with a small proportion (1-7 per cent) of di-ethyl ether. The hydrocarbons may be obtained from casing-head gas. The propane has an initial B.P. of - 51‹ F. and a dew-point of - 45‹ F. ; the butane has a B.P. of 15‹ F. and a dew-point of 24‹ F.
Patent GB-274756-A (GB)
Title: Improvements in and relating to centrifugal air cleaners
IPC: F02M35/022
Filed: 1927-03-01
Abstract: 274,756. A.C. Spark Plug Co., (Assignees of Kamrath, H. G.). Aug. 9, 1926, [Convention date]. Density separators.-The air delivered to the carburettor of an internal combustion engine is freed from dust on its way by a separator of the centrifugal type in which provision is made whereby the back pressure that is set up on a restriction of the throttle opening of the engine causes the evacuation of the dust collected in the separator. The engine suction draws ait through the opening 3 provided with vanes 4 to impart a whirling motion to the air currents, and solid particles are deposited against the wall at the rear end of the air cleaner and fall into a hopper 8 closed by a door 10 suspended by a stud 11. When the engine is throttled down an increase of pressure occurs in the cleaner and the valve 10 is pushed open, air rushing through the opening and blowing out the dirt that has accumulated. The air on its way to the carburettor passes through vanes 5, which check the whirling motion imparted to it by the blades 4.
Patent GB-935391-A (GB)
Title: Improvements in and relating to the production of acetamide
Inventor: GRADY DENNIS
IPC: C07C233/01
Filed: 1961-02-16
Abstract: A continuous process for the production of acetamide comprises continuously feeding a mixture consisting essentially of ammonium acetate, acetic acid and acetamide to an intermediate point of a heated column where dehydration of ammonium acetate takes place, a stream of ammonia gas being continuously fed upwardly through the column at such a rate and in such quantity that aqueous ammonia passes over at the top of the tower.
Patent GB-353407-A (GB)
Title: Improvements relating to the production of hydrocyanic acid
IPC: C01C3/02
Filed: 1930-02-21
Abstract: In the production of hydrocyanic acid by the interaction between gaseous hydrocarbons such as methane and ammonia at a temperature of at least 1150 DEG  C. and at high space velocity as described in the parent Specification, the gases are diluted with nitrogen or a mixture of nitrogen and hydrogen to minimize the deposition of carbon.  Specification 229,973, [Class 1 (ii), Inorganic compounds, other than &c.], is referred to.
Patent GB-262634-A (GB)
Title: Improvements in appliances for playing games of skill
IPC: A63F9/02
Filed: 1926-03-02
Abstract: 262,634. Pinder, G. March 2, 1926. Table games. - A table for use in a disc-throwing game comprises a sheet of aluminium or other substance formed with a number of concentric circular grooves 2, a sheet 3 of stiff material being provided round one side of the table to stop overthrown discs. The grooves are numbered for scoring purposes.