baber/WOPTO huggingface dataset:
Patent GB-831575-A (GB)
Title: A process for the production of azulenes
IPC: C07C13/52
Filed: 1957-07-25
Abstract: Azulenes are prepared by the dehydrogenation of the corresponding dihydroazulenes.  The dihydroazulene itself may be prepared by the condensation of a cyclopentadiene or an indene having at least two adjacent unsubstituted carbon atoms, with a 1,5-dicarbonyl aliphatic compound or a cyclic or open chain derivative thereof.  The cyclopentadiene or indene or the dicarbonyl compound may be substituted with alkyl-, aryl-, aralkyl-, alkoxy or dialkylaminogroups.  Particularly suitable dicarbonyl compounds are glutaric acid dialdehyde, its cyclic acetals, which may be prepared from acrolein or a vinyl ketone and a vinyl ether, and 1,4-dihydropyridine and its derivatives.  The dihydropyridine may be formed in situ from pyridine and alcohol and sodium.  The condensation with the cyclopentadiene or indene is preferably performed in the presence of an alkali metal.  The dehydrogenation may be carried out in vacuo in a high-boiling liquid such as benzene, preferably in the presence of a dehydrogenating agent such as chloranil.  In examples: (1) to a mixture of pyridine, cyclopentadiene and ethanol, sodium is added and the ethanol removed by distillation; the residue is mixed with benzidine and chloranil and introduced slowly into a continuous distillation apparatus with superheated steam at 250-300 DEG  C. Azulene is extracted from the distillate with petroleum ether which is distilled off in vacuo.  (2) 4-Methyl azulene is prepared from cyclopentadiene and a -picoline. (3) 5-Methyl azulene is prepared from cyclopentadiene and b -picoline.  (4) 4,8-Dimethyl azulene is prepared from cyclopentadiene and 2,6-lutidine.  (5) Azulene is prepared from cyclopentadiene and 2-n-butoxy-3,4-dihydro-1,2-pyrane.  (6) 4-Methyl azulene is prepared from cyclopentadiene and 2-ethoxy-6-methyl-3,4-dihydro - 1,2 - pyrane.  (7) 1 - Methyl azulene is prepared from pyridine and methylcyclopentadiene. (8) 1-Benzhydryl azulene is prepared from pyridine and benzhydrylcyclopentadiene.  (9) 1-Isopropyl-2-methyl azulene is prepared from pyridine and 2-isopropyl-3-methylcyclopentadiene.  (10) 1,2-benzazulene is prepared from pyridine and azulene.
Patent GB-412064-A (GB)
Title: Improvements in or relating to vapour burners
IPC: F23C99/00
Filed: 1933-08-25
Abstract: 412,064. Vapour burners. SVENSKA AKTIEBOLAGET GASACCUMULATOR, Liding÷, near Stockholm. Aug. 25, 1933, No. 23652. Convention date, Nov. 3, 1932. [Class 75 (i).] Liquid fuel from a tank 1 is directed by an inclined shelf 5 into one of two or more funnels 6, 16 which are connected respectively by pipes 7, 17 to two or more vaporizing chambers 8, 18 fixed to or integral with the lower part 11 .of a vapour burner. The two pipes 7, 17 have upwardly inclined ends 21 which are fitted with drip pins 24 and are surrounded by pipes 9, 19 leading from a channel 10 and connected to the chambers 8, 18 by branches 27. In use, the fuel vaporized in the chamber 8 passes with air or flue gases containing oxygen drawn through the pipe 9 into the lower burner part 11. and is mixed with air, part of which enters through a pipe 31 and part through the pipe 19 and chamber 18. The mixture so formed burns in the upper burner part 12 and is conducted to heat absorbing parts such as a flanged box 14. When a coke deposit has formed at point of contact of the fuel with one vaporizing chamber the shelf 5 is shifted to direct the fuel into the other vaporizing chamber, and the coke in the first vaporizing chamber burns with the air passing through the chamber to the burner.
Patent GB-508149-A (GB)
Title: Method of producing a therapeutic preparation from plants containing chlorophyll
IPC: A61K31/40
Filed: 1938-08-11
Abstract: 508,149. Medicines; treating plant substances with radiations. HELLER, J. Aug. 11, 1938, No. 23708. [Class 81 (i)] [Also in Group III] Therapeutic preparations are produced from chlorophyll-containing plants by irradiation of the plant substance with ultra-violet light for from three to four hours at temperatures below 0‹ C. followed by drying at temperatures above 0‹ C. and below 40‹ C. with exclusion of daylight. According to an example stinging nettle (urtica dioica) leaves are irradiated by a mercury quartz lamp at a temperature of -10‹ C. and are then dried and comminuted at 30‹ C. with exclusion of daylight.
Patent GB-656802-A (GB)
Title: Improved multi-bladed rotor
IPC: B64C11/00
Filed: 1948-09-09
Abstract: 656,802. Helicopters. CORNILLON, A. N. Sept. 9, 1948, No. 23760. Convention date, Sept. 13, 1947. [Class 4] A multi-bladed rotor for aircraft or the like comprises radial blades 10 rotating about a substantially vertical axis and oscillatable about their own axes, the oscillation of each blade being controlled by a roller 35 engaging a fixed guide 68, wherein each roller is carried by an arm 34 secured to a sleeve 33 loose on the tail of the corresponding blade, the said sleeve being connected with an oscillatable member 47 disposed at a distance from the blade and this member being in turn connected with the tail of the blade by means of a pair of toothed sectors 56, 57, the sector 57 carried by the blade tail being smaller in radius than the sector carried by the oscillatable member, whereby a limited angular oscillation of the said arm causes a large angular oscillation of the blade. The guide 68 is carried on the periphery of a plate 62 which is tiltable about pivots 60 by a mechanism 65, 66, 67 to vary the amplitude of oscillation of the blades. The height of the guide 68 relative to the plate 62 is such that the pitch of each blade increases during rotation of the rotor through 90 degrees, decreases during the next 90 degrees and remains constant for the remainder of the revolution. The sleeve 33 is connected with the member 47 by means of pivoted links 49. A spring (Fig. 6, not shown), is provided between each rotor blade and its respective roller 35 to resist the inertia torque due to pitch changing of the blades. Reference is made to the application of the rotor to ship propulsion.
Patent GB-316884-A (GB)
Title: Apparatus for measuring turning moments
IPC: G01L3/14
Filed: 1929-08-02
Abstract: 316,884. Deutsche Versuchsanstalt f³r Luftfahrt E. V. Aug. 4, 1928, [Convention date]. Dynamometers.-The turning moment which one shaft transmits to another is measured by a coupling of the type in which pistons act in cylinders to apply pressure in a cylinder parallel to the shaft, a pair of parallel cylinders being now arranged at a distance from the axis of the shaft The tangential forces P1 are transferred by the arm d, rigidly connected with the shaft 2, to the pistons a and thence, through the liquid in the cylinder b and the body e, to the shaft 1. The tangential forces P1 acting on the pistons a are converted in the cylinders b into axial forces P2. The pressure in the cylinders b acting on the pistons c is transmitted over a ball thrust bearing f to pistons g in the stationary cylinders h and is measured by a manometer. As stated in the Specification, the ratio of the forces P, and P2 can be kept constant and independent of changes in the frequency of revolution of shaft 2, which produce changes in the centrifugal forces in the liquid, by having a special relative position of pistons and shaft with given piston diameters.
Patent GB-782473-A (GB)
Title: A new piperazine derivative
Inventor: WATKINS THOMAS ISWELL
IPC: C07D295/027
Filed: 1955-04-18
Abstract: The invention comprises an addition compound of piperazine and 4-n-hexylresorcinol in the molecular ratio of 3 : 2 and having the empirical formula of C36H66O4N6, and its preparation by mixing piperazine and 4-n-hexylresorcinol in the required proportion in an inert liquid medium which is preferably one in which the reactants are soluble, or by mixing piperazine and 4-n-hexylresorcinol in the required proportion and heating them.ALSO:Anthelmintic compositions for oral administration comprise an addition compound of piperazine and 4-n-hexyl resorcinol in the molecular ratio of 3 : 2 together with a diluent or carrier.  The compound may be used in human or veterinary medicine, suitably mixed with solid or liquid diluents in the form of tablets, capsules or aqueous suspensions.  For veterinary use, the compound is conveniently admixed with animal food.  Examples illustrating the veterinary use of the compound in a capsule and in dog's biscuit meal and in dog's meat are given.
Patent GB-501544-A (GB)
Title: Bedside cabinet
IPC: A47B79/00
Filed: 1937-09-01
Abstract: 501,544. Bedside cabinets. WATSON, D. G. H. Sept. 1, 1937, No. 23860. [Class 52 (iii)] A bedside cabinet has a top compartment fitted with a lamp A and having a frosted glass top B and side panels C. A short drawer E below the top compartment allows the lamp to illumine a bottom cupboard F. Drop leaves D are provided to cover the side panels
Patent GB-1473677-A (GB)
Title: Catalyst for selective removal of nitrogen oxides from waste  gases a method of preparing same and a process for the  selective catalytic purification of waste gases from nitrogen  oxides using this catalyst
IPC: B01J23/34
Filed: 1974-05-29
Abstract: 1473677 Reduction catalysts for removal of nitrogen oxides G A SKVORTSOV N N NIZEEVA A I PODZHARSKY and I V DOBROVOLSKAYA 29 May 1974 23889/74 Heading B1E [Also in Division Cl] Catalysts consist of vanadium and manganese oxides deposited on an inert support in a weight ratio V 2 O 5 /Mn 2 O 3  of 0.1 to 30 and in an amount of 5-40% of the total weight of the catalyst. The catalysts may be made by dissolving ammonium metavanadate or vanadium pentoxide in aqueous oxalic acid, adding a manganese salt to the resulting solution in the appropriate weight ratio, impregnating the support with the solution, drying at 110- 120‹C and calcining at 400-600‹C, the impregnation, drying and calcination being repeated one or more times.
Patent GB-218884-A (GB)
Title: An improved cigarette forming device
IPC: A24C5/44
Filed: 1923-09-25
Abstract: 218,884. Laczko, S. Sept. 25, 1923. Cigarette-making appliances. - A tobacco box comprises cigarette-rolling means in which a cross-bar, during the closing of the lid of the box, is moved by links so as to roll a cigarette in an apron attached to the lid at' one end and to a spring cross-bar sliding on the lid at the other. The apron 16 is attached to cross-bars 17, 18 on a frame 19 mounted on hinges 20 on the lid 2 and held by a catch 21. Paper 13 is placed on the apron, which is tucked through an opening 34, and tobacco is placed in the space thus formed. Flanges 35 cover the edges of the apron and the paper. The frame 19 has inturned edges 28, Fig. 7, which guide sliding members 29 moved by links 30, Fig. 4, carrying a rod 31, which is moved to roll the apron about the cigarette and project it through the opening 36 in the lid 2 on closing the box. The bar 18 is provided with ratchet mechanism to vary the tension of the apron. The bar 17 extends round the edges on the frame 19 and has ears passing through slots therein and is connected by springs 24 to brackets 25 on frame 19. When the cover 2 is wide open, the bar 31 is near the lower edge of the opening 34 and the bar 17 is drawn against spring tension below the lower edge of the opening 34. Tobacco is kept in a compartment 4 closed by a cover comprising hinged members 5, 6, a hinge spring 8 tending to fold them together. This cover is held by a spring clip 11 against an inwardly extending ledge 12. Cigarette papers are held in a spring clip in the cover 5.
Patent GB-1073769-A (GB)
Title: A support structure for medical apparatus
IPC: A61G15/00
Filed: 1966-05-27
Abstract: 1,073,769. Stands for medical apparatus. R. RODENSTOCK [trading as OPTISCHE WERKE G. RODENSTOCK], May 27, 1966 [Aug. 12, 1965], No. 23988/66. Heading A5R. [Also in Division G2] A support structure for medical apparatus, for example for investigations by opthalmologists and opticians, comprises a C-shaped base having an upright middle part 2 and transverse top and bottom parts 3 and 1, respectively. A lower column section 7 is mounted between the top and bottom parts; an upper column section 10 is mounted on top of the base, out of alignment with the lower column section and over the middle part of the base. On the column sections, which preferably have the same cross-section, a plurality of pivoted support arms 8 and 19 may be mounted at their inner ends; at least one of the support arms, which may be adjustable for height, may carry a further pivoted arm 9 at its outer end. The upper end of the upper column section may carry a lamp 11; the ends of the various arms may carry extension members 91 and/or apparatuses 12 and 13. Optical apparatus, for example a projector 14, and control elements may be installed on the top part of the base; on the upright part of the base may be mounted a desk 15 supporting a hand apparatus 16 having a service connection tensioned at 17 so as to disappear within the base when the apparatus is returned to the desk. The base may have a door 18 rendering an electrical installation therein readily accessible. As shown in the Figure, a chair 4 with armrests 6 is adjacent the support structure.
Patent GB-737770-A (GB)
Title: Pipe joints
Inventor: CLIFT ALFRED
IPC: F16L17/06
Filed: 1953-08-31
Abstract: 737,770. Pipe joints. STEWARTS & LLOYDS, Ltd. July 6, 1954 [Aug. 31, 1953], No. 23989/53. Class 99 (1). In a pipe joint wherein the externally threaded ends of a pair of adjacent pipes are inter-connected by a sleeve c, and the pipes a are lined with a coating of bitumen b, an axially-deformable sealing-ring d, embodying an annular groove e and made from rubber, rubber-like or synthetic plastic material or zinc, is located between the pipe ends. The pipe ends are formed with tapered screw-threads and the ring d, which has a semi-circular and rectangular or triangular section, may incorporate annular extensions f which overlap and tightly fit the inner pipe-surfaces. The joint may also include a bush g of bituminous rubber, rubber-like or other non-corrodible material when the gap between the pipe ends is greater than that which can be closed by the ring d.
Patent GB-659552-A (GB)
Title: Improvements in or relating to dielectric heating
IPC: H05B6/60
Filed: 1949-09-20
Abstract: 659,552. Dielectric heating. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Sept. 20, 1949, No. 24163. Convention date, Oct. 12, 1948. [Class 39(iii)] Apparatus for the edge-glueing of wood boards &c. 14 by passage between two electrodes has at least one electrode constructed of a number of electrically interconnected bars 70, 71<SP>1</SP>, 78, 78<SP>1</SP> arranged in an adjustable lazy-tong fashion on a framework 50. The bars are supported by roller means 40 arranged on slotted channels 54, 56, 58 of the frame. Each roller means, Fig. 4, includes a screw 90 passing through the bars and a slot in a channel, and plates 102, 104 carrying rollers 116, 118. The bars pivotally held, in addition, by nuts and screws 124 are separated by washers 92, and the rollers are forced against the framework by a spring 100. The distance of the bars from the framework and above the lower electrode 4, Fig. 1, can be controlled by adjusting the nuts 106, 108, and by loosening the nuts 98 the electrode is spread out or collapsed as required. The framework is pivotally supported on two pairs of arms 30, and the work 14 may be carried through the electrodes on a belt 10. A switch 140 stops the conveyer when the electrode is swung by a workpiece striking it.
Patent GB-259561-A (GB)
Title: Improvements in and relating to moving footways
IPC: B66B21/12
Filed: 1926-09-30
Abstract: 259,561. Parlongue, E. H. C. J. Oct. 12, 1925, [Convention date]. Moving platforms.-Passengers are transferred at gradually increasing speed to a moving platform by an endless conveyer comprising a series of rods 3 which are connected by springs 5 contained in open-sided casings 6 and are propelled by rotary members 1. The rods 3 rest on guides 4 and have depending members 3<a> which engage helical grooves 2 in the members 1. The pitch of each helix gradually increases in the direction of the platform.
Patent GB-469789-A (GB)
Title: Improvements in or relating to the act of growing mushroom spawn
IPC: A01G1/04
Filed: 1936-09-04
Abstract: Material in which mushroom spawn is grown is made by mixing a calcium salt or calciumbearing substance with a substrate or culture medium made from hominy, cracked wheat, whole grain wheat, barley, rye, oats, rice, clover seeds, beans, peas, ground corn cobs, &c.  The material is sterilized after adding the calcium salt and then inoculated with the mycelium of mushrooms and incubated.  The weight of calcium salt added may be about 1 to 3 parts in 100.  Calcium carbonate, nitrate, chloride, or hydroxide may be used.  Calcium carbonate may be used in the form of precipitated chalk.
Patent GB-1380182-A (GB)
Title: Surface coating compositions
IPC: C09D127/06
Filed: 1972-05-23
Abstract: 1380182 Aqueous polymer-based coating compositions TENNECO CHEMICALS Inc 23 May 1972 [23 June 1971] 24236/72 Heading C3P An aqueous coating composition comprises 10-70 wt. per cent of a water-insoluble resinous binder which is a water insoluble synthetic addition polymer obtained by the vinyl polymerization of monoethylenically unsaturated molecules, an oleoresinous binder, or a condensation polymer and mixtures thereof, and as thickener 0À01-2À0% by wt. based on the composition weight, of a hydroxyalkyl ether of a galactomannan gum in which the hydroxyalkyl group has 2-6 carbon atoms and the gum has a degree of substitution of 0À1 to 3À0, the degree of substitution being the average number of hydroxyl groups per anhydrohexose unit. The preferred thickener is the hydroxy ethyl ether of guar gum but other gums such as locust bean, honey locust and flame tree gum may also be used as their hydroxy alkyl derivatives. In the examples hydroxyethyl ethers of guar gum of varying degrees of substitution are used with binders which are (1) a vinyl acetate copolymer, (2) an ethyl acrylate/methyl methacrylate/ acrylic acid copolymer and (3) a vinyl acetate/ ethyl acrylate copolymer. Other ingredients commonly used in aqueous coating compositions are also present, such as pigments, defoamers, colloids and small amounts of organic solvents as well as the water.
Patent GB-1328005-A (GB)
Title: Paint applicator
IPC: B05C17/00
Filed: 1971-04-19
Abstract: 1328005 Brushes RED DEVIL Inc 19 April 1971 [2 March 1970] 24333/71 Heading A4K [Also in Division B4] A paint applicator comprises a resilient pad 12 of e.g. foamed urethane, acetate, sponge rubber, bristles 11, e.g. of nylon, natural bristles, which may be part of a pile fabric, an elongate rigid plate 13 of e.g. metal, plastics, cemented to the upper surface of pad 12, with inturned flanges 14, 15 along its longer margins on its upper surface, a support 16 having its edges 17, 18 slidably received within the flanges 15, 14 and provided with an inclined handle 20 and a screw 24 inserted in a threaded bore 23 in support 16 and frictionally engaging a selected recess 25 in plate 13 to lock the support 16 in an adjusted position relative to plate 13. Screw 24 may be inserted in a threaded bore (26), Fig.3 (not shown), in handle 20 perpendicular to the handle axis, and a wedge shaped locking member (28), Fig.4 (not shown), with a cylindrical stem (29) may be interposed between the screw 24, the plate 13 and the support 16. The handle 20 is hollow and internally threaded at 22 to receive an extension.
Patent GB-243782-A (GB)
Abstract: 243,782. Parsons, I. H., and Ball, A. E. J. Aug. 27, 1924. Electric clocks; indicating time of working of machines.-An indicator system comprises a master clock C which transmits half-minute impulses to a circuit A containing indicators D for the machines and an additional indicator D1 for the prime mover for the machines. Across this indicator circuit is a shunt Q which is opened and closed alternatively with the indicator circuit by the governor N operating insulating arms O, P carrying contacts 2, P2, and 03, P3. When the prime mover is running the governor raises the bell-crank P4, P closing contacts 02, P2 and opening contacts 03, P3 so that D1 shows the total running time of the prime mover and each indicator D shows the running time of its machine, which, while runnnig, maintains open the shunt L. When the prime mover is stopped contacts O2, P2 open and contacts 03, P3 close, shunting the indicator system and maintaining the master clock circuit. When a machine stops it closes contacts P, F1 and shunts its indicator D, but if the machine is running F, F1 are open, current energizes a magnet H every half-minute, armature arm J, J1 is rotated anti-clockwise and then returned, on de-energization of the magnet, by a spring J4, so that a part J2 moves a ratchet on the indicator drive one tooth forward. In a second construction a direct shunt across .the indicator circuit is opened and closed by modified governor-controlled mechanism. Zeroizing-mechanism. - In order that the pointers G1, G3, G5 may be zeroized individually by hand, each pointer has a split spindle G8 which fits frictionally tight in a bore K8, which may be slightly undercut, in a spindle K9 of the wheel train of the indicator.
Patent GB-789538-A (GB)
Title: Improvements in and relating to control valves for hydraulic presses
IPC: B30B15/16
Filed: 1954-08-21
Abstract: 789,538. Hydraulic forging presses. ELECTRAULIC PRESSES, Ltd., and TOWLER, F. H., [personal representative of TOWLER, J. M. [deceased]]. Aug. 12, 1955 [Aug. 21, 1954], No. 24396/54. Class 83 (4). [Also in Group XXIX] In an hydraulic forging press a valve 24 has four positions which provide (a) automatically repeated short planishing strokes in extreme left position, (b) forge, (c) neutral, (d) return in extreme right position. A single cycle consisting of fast approach, forge to maximum pressure, and return, may be effected by push-button operation of valves 31, 32. Specification 783,413, [Group XXIX], is referred to; and Specifications 732,775, [Group XXIX], and 784,933 also are referred to in the Provisional Specification.
Patent GB-457900-A (GB)
Title: Improvements in or relating to thread marking machines or apparatus
IPC: A41H31/00
Filed: 1935-09-02
Abstract: 457,900. Sewing. BELLOW, A., 39, Grafton Street, Leeds. Sept. 2, 1935, No. 24423. [Class 112] A thread-marking device comprises a wheeled carriage 1 and a straight needle 3 which is stabbed through the material to leave a loop of needle thread, by the handle 5. In operation, the carriage is tilted and drawn back on its wheels 1x step by step. At each step, the handle 5 is pushed forwards against the action of a spring 6 surrounding the stem 9 to cause the needle 3 to penetrate the work and leave a loop of thread. The thread supply 4 is carried in a U-shaped arm 11 resiliently held in the carriage 1.
Patent GB-501986-A (GB)
Title: A new or improved method of polishing surfaces
IPC: C11D17/04
Filed: 1937-09-10
Abstract: 501,986. Polishing surfaces. CRISP, O. B. Sept. 10, 1937, No. 25655. [Class 95] A method of polishing a surface consists is moistening a pad of soft material with petrol, adding a few drops of "brushing cellulose," applying the pad to the surface with a circular motion, until polished, and finishing off with a soft clean duster.
Patent GB-1093588-A (GB)
Title: Improvements in chairs, particularly for infirm persons
IPC: A47C3/025
Filed: 1965-06-11
Abstract: 1,093,588. Seats. K. POWELL. May 23, 1966 [June 11, 1965], No. 24704/65. Heading A4J. [Also in Division E1] In a chain, in which a pivoted seat member 14 is spring urged upwardly to assist the occupant to rise, the rear of the member 14 is retained, in the lowered position, by the engagement of a flange 30 thereon with a transverse bar 25, slidably mounted in the metal frame of the chair. To release the member 14, knobs 27 are depressed to slide bar 25 rearwardly, to free the flange 30.