baber/WOPTO huggingface dataset:
Patent GB-427733-A (GB)
Title: Improvements in the manufacture and production of nitrogenous condensation products
IPC: C07D221/18
Filed: 1933-10-19
Abstract: A mo-halogenacridine is condensed with a compound of the anthraquinone series having at least one exchangeable hydrogen atom attached to nitrogen and containing at least one keto group. Starting materials comprise on the one hand 9-chloracridine, 9-bromacridine, ms-chlorphthaloylacridines, ms-chlorbenzacridine quinones (derived by condensing a -naphthoquinones with o-anthranilic acid, ring-closing by means of sulphuric acid, followed by treatment with phosphorus pentachloride or thionylchloride) and substitution products and homologues thereof, and on the other hand amino anthraquinones, aminobenzanthrones, ammodibenzanthrones, aminopyranthrones, aminoanthanthrones and aminoanthrapyrimidones and their homologues and substitution products.  Condensation is preferably effected in presence of an organic diluent and an acid binding agent.  In examples (1) 9-chloracridine is condensed with 1-aminoanthraquinone, 2-aminoanthraquinone, 1-amino-4- (or 5-)-benzoylaminoanthraquinone 1 - amino - 4 - methoxyanthraquinone, 1,4-, 1,5-, or 2,6-diaminoanthraquinone : (2) ms - chloro - 2,3-benzacridine - 1,4 - quinone is condensed with 2 - aminoanthraquinone (dyes reddish-yellow shades on cotton from the vat); if in this reaction ms-chloro - 7 - chloro - 2,3 - benzacridine - 1,4 - quinone (derived by condensing a -naphthoquinone with 2 - amino - 4 - chlorbenzene carboxylic acid, ring-closing and treating with phosphorus pentachloride) or ms-chloro-7-methyl-2,3-benzacridine - 1.4 - quinone (derived similarly from a -naphthoquinone and 2 - amino - 4 - methylbenzene carboxylic acid) is used instead yellow vat dyes are obtained : instead of 2 - aminoanthraquinone 1,3-, 1,4-, 1,5- or 2,6-diaminoanthraquinone, 1-aminoanthraquinone, 1-amino-6 (or 5-)-benzoylaminoanthraquinone, 1 - amino - 4 - methoxyanthraquinone or their derivatives may be used : (3) ms-chlor - 2,3 - benzacridine - 1,4 - quinone is condensed with aminodibenzanthrone (prepared by nitrating dibenzanthrone and reducing) (dyes grey-black); ms - chloro - 7 - chloro - 2,3 - benzacridine - 1,4 - quinone or ms-chloro-7-methyl-2,3-benzacridine-1,4-quinone may be used instead and aminoanthanthrone or aminobenzanthrone may replace amino-dibenzanthrone: (4) anthraquinone 1(N)-2-acridine is treated with thionyl chloride in nitrobenzene, and 2-aminoanthraquinone then added and condensation effected.  The products are either dyes or intermediates.  Specification 407,363 is disclaimed.
Patent GB-850690-A (GB)
Title: Improvements in or relating to conveyor systems
IPC: B65G45/26
Filed: 1956-09-21
Abstract: 850,690. Conveyer belt cleaning devices. MITCHELL, F. G. Sept. 20, 1957 [Sept. 21, 1956], No. 28982/56. Class 78 (1). In an arrangement for cleaning the load-carrying surface of a belt or articulated plate conveyer, the belt or the like 10 is passed over a terminal roller 11 at which the main mass of material is discharged by a pivoted, spring-pressed scraper 23, after which the belt passes around a snub roller 12 cleaned by a counterweighted scraper 20, then under a rapping idler 13 which vibrates the belt, and finally over pivoted, counterweighted scrapers 14, 15 and a fixed scraper 18. The main body of material falling from the main scraper 23 passes down a shoot 26 on to a receiving conveyer belt 27, while material removed by the scrapers 14, 15, 18 and 20 and by the idler 13 falls into a trough 30 containing a double-chain scraper conveyer which is driven by an electric motor and delivers this material via shoot 36 to the belt 27. In a second embodiment (Fig. 3, not shown) the fixed scraper 18 is omitted, the scraper 20 is positioned at the lowest point of the snub roller 12, and the scraper conveyer is driven from the snub roller 12 by a chain drive.
Patent GB-949486-A (GB)
Title: Improvements í¡í¡ the cooling of liquids
Inventor: PORTER THOMAS
IPC: F25D31/00
Filed: 1961-08-11
Abstract: 949,486. Cooling liquids. T. PORTER & CO. (SALFORD) Ltd. July 30, 1962 [Aug. 11, 1961], No. 29010/61. Heading F4H. A liquid cooler embodying a refrigeration circuit of the compression type, for example an in-line beer cooler, has an evaporator containing a body of the refrigerant and over which the liquid flows and which above the level of the refrigerant, is formed to provide a narrow space in which bubbles formed by the boiling of the refrigerant collect before complete evaporation occurs, the wall bounding said space providing an increased area of indirect contact between the refrigerant and liquid which increases as the rate of boiling increases, the latter rate being dependent on the rate of flow of the liquid to be cooled so that the rate of heat extraction varies automatically with the load on the unit. In the form shown, a metal base-plate 1 has two coaxial cylinders 3, 8 welded to it, the cylinder 8 being closed at its upper end. The cylinder 3 is fed with refrigerant through a capillary tube 6 which acts as a level control means. Holes 4 in the cylinder 3 admit refrigerant to a narrow annular space 10 between the cylinders 3, 8 wherein it assumes the same level as in the cylinder 3. A bell housing 12 surrounds the cylinder 8 and is spaced apart therefrom to form an annular space 18 for the liquid to be cooled which enters through an inlet 16 and leaves via an outlet 17. The bell housing 12 is detachably secured to the baseplate 1 by means of a flange 13 on its lower end, a ring nut 14 and sealing washer 15. A pipe 11 positioned centrally on the cylinder 3 removes evaporated refrigerant to the compressor of the refrigerant circuit. In operation, refrigerant is boiled off in the space 10 by heat transfer from the liquid flowing through the space 18. This boiling causes a wall of bubbles 19 to be formed above the level of the refrigerant in the space 10, the height of this wall of bubbles being dependent on the rate of boiling. The wall of bubbles augments the heat transfer through cylinder 8 in the region above the level of refrigerant in the space 10 and will automatically increase the heat transfer rate as the heat loading on the evaporator is increased. In a modification a ball-float valve may be used as an alternative to the capillary tube 6 to maintain the level of refrigerant in the evaporator.
Patent GB-644445-A (GB)
Title: Improvements in or relating to farming implements and other apparatus for handling material
IPC: A01D87/08
Filed: 1947-10-31
Abstract: 644,445. Load-handling machines. PATERSON, R. M. Oct. 31, 1947, No. 29164. [Class 78 (iii)] [Also in Group I] A load-handling attachment for a tractor comprises a main frame including a transverse tool-bar 11 having a back-rack 34 and parallel tines 5, the main frame being pivoted by brackets 34 to lifting links 32 on the tractor, and the back-rack being pivoted to a latch arm 47, to which it is normally latched by a releasable latch 43, thus enabling the scoop to be tipped to dump its contents. The links 32 are lifted by the power-lift arms A<1> of the tractor and the upper end of the latch arm 47 is connected by a lever 48 to a fixed pivot 481 on the tractor, the pivot points being so disposed that the tines slope downwardly in the lowered position but are upwardly inclined to retain the load when the scoop is raised. In a modification, Fig. 5, the lift-arms 321 are mounted on the front of the tractor and the latch arm 47<1> is pivoted to a standard 67 carried on these arms 321. The arms are raised by a winch 75 and tackle 74, 66, and the latch 43<1> is tripped by a cord 76 accessible to the tractor driver.
Patent GB-801208-A (GB)
Title: Improvements in or relating to means for cutting plastic substances
IPC: A01J23/00
Filed: 1955-10-13
Abstract: 801,208. Butter-cutting apparatus. ABDELA, F., and MOSS, B. N. C. Oct. 11, 1956 [Oct. 13, 1955], No. 29186/55. Class 87(2). A pallet 10 fits snugly in a square frame 8, leaving an enclosed space above it with a depth equal to the thickness of the pats to be cut. Cutting discs 11 are carried by a rod 13 with spacers 18 interposed. Each end of the rod has a handle 12 like that of a rolling pin. Slots 9 allow the discs to move out beyond the insides of the sides of the frame, their depth decreasing outwards. Butter is spread and levelled on the platen and the cutter rolled over it in the two perpendicular directions, thereby cutting it into square pats, the slots ensuring complete severance of the margins. The pallet may then be removed with the pats and placed in a refrigerator. The cutter may alternatively be turned from a single piece of wood.
Patent GB-906745-A (GB)
Title: Improvements relating to bobbin winding apparatus
IPC: B65H54/52
Filed: 1960-08-24
Abstract: 906,745. Winding yarn. RATTI S.p.A., MICHELE. Aug. 24, 1960 [Sept. 1, 1959], No. 29194/60. Class 120 (2). In bobbin winding apparatus in which the bobbin is supported in a cradle pivoted eccentrically of the bobbin axis in a stationary frame and driven by contact with a driving roller, the movement of the cradle about its axis is restrained by frictional means disposed between the cradle and the frame and adjacent the bobbin axis. As shown, the bobbin cradle has, mounted on its shaft 5, resilient arms 1, 2 which carry resilient friction shoes 3 urged against braking surfaces 12 formed on the fixed frame. The bobbin spindle is mounted in recesses 11 in the shoes 3 and as the bobbin grows against a fixed driving roller (not shown) the cradle rises, the movement being damped by the action of the shoes 3 against the braking surfaces 12 which may be arranged to converge so that the damping effect increases with package growth. Instead of making shoes 3 of resilient material, the surfaces 12 may be faced with such material.
Patent GB-187468-A (GB)
Title: Improvements in or relating to candlesticks
IPC: F21V35/00
Filed: 1921-11-03
Abstract: 187,468. Ferguson, A. Nov. 3, 1921. Candle holders. - The handle of a candlestick is connected to the base in such a mauner that, however the candlestick be carried, the candle is maintained in a vertical position. The support for the candle is formed of two upright wires G which are fixed to the base H and project upwardly to grip the candle K on its sides, one end of each wire G being formed into an eye F which engages with a similar eye E on the ends of a fork-shaped handle A about the single end B of which a finger grip C freely rotates.
Patent GB-519950-A (GB)
Title: Improvements in the treatment of artificial filaments, yarns and other materials made of cellulose derivatives
IPC: D06M11/75
Filed: 1938-10-08
Abstract: 519,950. Treating artificial filaments, &c. with esterifying agents. DREYFUS, H. Oct. 8, 1938, No. 29217. [Class 2 (ii)] Artificial filaments, fabrics, foils, and other materials made of organic derivatives of cellulose are subjected to the action of a halide of a polybasic inorganic acid at a temperature above 100‹ C. The acid halide employed may be carbonyl chloride, phosphorus oxychloride, thiocarbonyl chloride, thionyl chloride, or sulphuryl chloride. The melting point and safe ironing temperature of the materials treated are increased and the materials may be rendered insoluble in common organic solvents. Cellulose acetate yarn in hank or fabric form may be immersed in boiling toluene or xylene in a reflux apparatus, and carbonyl chloride may be bubbled through. A basic substance, e.g., pyridine or quinoline or a metal salt e.g., ferric, zinc, stannic, or aluminium chloride which has a catalytic action may be present. The process is applicable to cellulose ester or ether materials. In examples, cellulose acetate woven fabric is treated at a temperature above 100 ‹C. with carbonyl chloride bubbled through xylene, or with a solution of thionyl chloride, pyridine and toluene. The material becomes insoluble in acetone, glacial acetic acid and chloroform.
Patent GB-842882-A (GB)
Title: Improvements relating to electromechanical wave filters
IPC: H03H9/50
Filed: 1956-09-25
Abstract: 842,882. Electromechanical filters. GENERAL ELECTRIC CO. Sept. 25, 1956 [Sept. 29, 1955], No. 29280/56. Class 40(8). At least one magnetostrictive transducer in an electro-mechanical wave filter is provided with a closed magnetic path which includes one active element at the end of the mechanical filter and is formed throughout of magnetic material. The electro-mechanical wave filter comprises two magnetostrictive transducers 10, 20 and a multisection mechanical filter 16. The first ferrite filter element 17 forms the last link in the closed magnetic circuit of the transducer 10, and similarly the last ferrite filter element 18 closes the magnetic circuit of transducer 20. The magnetic circuit of each transducer comprises two spaced parallel legs of magnetostrictive material, e.g. 11, 12, a yoke such as 15, of magnetic material terminating and magnetically polarizing said legs at one end, and the filter element, bridging the legs at the other end.
Patent GB-414550-A (GB)
Title: Improvements in or relating to leading-in insulators for metal vapour rectifiers
IPC: H01J13/20
Filed: 1933-10-23
Abstract: 414,550. Metallic - vapour rectifiers. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London. Oct. 23, 1933, No. 29368. Convention date, Oct. 22, 1932. [Class 39 (i).] The lower end 4 of a tubular leading-in insulator 3 is in the form of an elongated bulb or cone which provides an abutment for the anode 1. An anode shield 2 or the cap 6 thereof rests on a ledge 5 in the insulator. Throughout the length of the insulator the walls thereof have a uniform thickness.
Patent GB-1106655-A (GB)
Title: Improvements in or relating to the measurement of gases
IPC: G01N27/00
Filed: 1965-07-12
Abstract: 1,106,655. Analyzing gas mixtures electrically. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 12, 1965 [July 15, 1964], No.29368/65. Heading G1N. In a method of determining the identity and pressure of the constituents of a gas mixture of very low pressure (e.g. 10<SP>-8</SP> Torr or less), the gas mixture is adsorbed on to a tip etched on a monocrystal of tungsten wire 1 and then desorption pulses of about 1 second duration and successively greater magnitude are applied to electrode 2 and the electron field emission characteristic of the tip is determined between desorption pulses using a screened collecting electrode 5. The pulse magnitude necessary for desorption is an indication of the identity of the constituent and the corresponding change in work function is a measure of the pressure of that constituent. Coils 6 are provided for creating a magnetic field at the tip to allow the electron emission characteristic to be determined for differently oriented crystal faces. The tip may be cooled to liquid air temperatures to reduce migration across the tip allowing the measurement of rare gases.
Patent GB-979876-A (GB)
Title: Collar for use with gripper operated bottle packing machines
IPC: B65B21/12
Filed: 1963-07-25
Abstract: 979,876. Collars for bottle grippers. HOLSTEIN & KAPPERT MASCHINENFABRIK PHOENIX G.m.b.H. July 25, 1963 [Aug. 11, 1962], No. 29422/63. Heading B8H. A collar for bottles in a handling plant which has grippers has a cylindrical top 2, the walls of which are thicker near the top, and a conical base 3 with reinforcing ribs 5.
Patent GB-1537052-A (GB)
Title: Apparatus for filling a container with rod-like articles
IPC: A24C5/354
Filed: 1976-01-15
Abstract: 1537052 Filling cigarette trays MOLINS Ltd 15 Jan 1976 [23 Jan 1975] 29453/78 Divided out of 1537051 Heading B8C Apparatus for filling a container with cigarettes or like articles comprises a conveyer for feeding batches of cigarettes, a pusher for moving successive batches transversely off the conveyer into a container, and locating means synchronized with, and effective to engage and position a container, prior to receiving a batch. The description is identical to that in Specification 1,537,051 but the claims differ.
Patent GB-770218-A (GB)
Title: Improvements in and relating to frequency changing arrangements for combined broadcast sound radio and television sets
IPC: H04N5/60
Filed: 1954-10-13
Abstract: 770,218. Valve circuits for radio recepttion. SAUTIER & JAEGER. Oct. 13, 1954 [Oct. 16, 1953], No. 29473/54. Classes 40(5) and 40(6) In a combined receiver for television and sound broadcasting, a hexode mixer L1 and triode oscillator L2 are used for sound broadcasting frequencies the mixer L1 feeding into series-connected I.F. circuits T1, 2 tuned respectively to alternative high and low intermediate frequencies. For television, the oscillator L2 feeds a triode buffer frequency-doubler L4<SP>1</SP> the anode of which is connected to the grid of a triode mixer L4<SP>11</SP>. High-frequency television signals are supplied to the grid of the mixer L4<SP>11</SP> by a tuned circuit av. The anode circuit comprises a video I.F. tuned circuit C from which sound I.F. is coupled into the sound I.F. channel via a link coupling Sp, Sr. In another embodiment, Fig. 3 (not shown) the buffer stage comprises a double triode with its grids fed in pushpull from the local oscillator, the anodes being connected to the mixer grid in parallel. The doubler is so biased that the fundamental frequency also appears in its anode circuit, so that this frequency also may be used for frequency-changing.
Patent GB-339396-A (GB)
Title: The manufacture of vat dyestuffs
IPC: C09B5/40
Filed: 1929-09-28
Abstract: 339,396. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Sept. 28, 1929. Benzanthronylaminoanthraquinone condensation products.-Vat dyestuffs are prepared by acting with an acylating agent on a condensation product obtained by treating a 1-(Bz1-benzanthronylamino)-4- or 5- or 8-aminoanthraquinone, or a substitution product thereof halogenated in the benzanthrone residue, with an alkali condensing agent. Acylation may be carried out in a highboiling solvent or diluent, with or without addition of an acid binding agent, by means of acid halides or anhydrides. The same dyestuffs are obtained by subjecting a 1-(Bz1-benzanthronylamino)-4- or 5- or 8-acylaminoanthraquinone compound to alkaline condensation using as condensing agent an alkaline acting compound containing no hydroxyl groups or only small amounts of admixtures containing hydroxyl groups. If the usual alkaline condensing agents containing hydroxyl groups are employed saponification of the acylamino group in addition to condensation occurs. In examples, (1) alkali-condensed 1-(Bzl.- benzanthronylamino) - 5 - aminoanthraquinone is treated with benzoyl chloride, benzoic acid anhydride, cinnamic acid choride, acetic anhydride and anthraquinone-2-carboxylic acid chloride: (2) alkali - condensed 1-(Bz1-benzanthronylamino)-4- aminoanthraquinone is treated with benzoic acid anhydride: (3) alkali-condensed 1-(Bz1-benzanthronylamino)-8-aminoanthraquinone is treated with acetic anhydride; (4) alkali-condensed 1- (Bz1-6-chlorbenzanthronylamino) - 5-aminoanthraquinone. is treated with benzoyl chloride and cinnamic acid chloride; (5) 1-(Bz1-benzanthronylamino)-5-benzoylaminoanthraquinone is heated in aniline containing sodium aniline or sodium alcoholate. These products dye in olive shades fast to chlorine. The Provisional Specification also refers to the above alkali condensation being applied to 1 -(Bz1-benzanthronylamino)-acylaminoanthraquinone generally Reference has been directed by the Comptroller to Specification 24604/08.
Patent GB-340936-A (GB)
Title: Improvements in or relating to electric discharge tubes having an electron discharge
IPC: H01J1/304
Filed: 1929-09-30
Abstract: 340,936. Discharge apparatus. DICKER, S. G. S., 20, Holborn, London.- (Naamlooze Vennootschap Philips' Gloeilampenfabrieken, 6, Emmasingel, Eindhoven Holland.) Sept. 30, 1929, No. 29567. [Class 39 (i).] In tubes in which an electron discharge flows from a cold cathode 4 having sharp protuberances, the active surface of this cathode 4 is a surface generated by revolution, or by revolution combined with rotation, of a plane figure such that the surface has sharp ribs, the anode 2 following in general form the cathode 4 but being smooth. In a rectifier suitable for highvoltage supply to X-ray tubes, a ferrochrome anode 2 is spaced by a few mm. from a ferrochrome cylinder 3 having a cathode surface 4 of aluminium or other material emitting electrons more easily than ferrochrome, the surface 4 being provided with sharp circular teeth or screw threads on a lathe. A hollow lead 7 facilitates cooling the cathode. The relative position of the electrodes may be observed through a glass window 8. The glass-metal seals have metal screens 9 .. 11. The tube is exhausted sufficiently to avoid gas ionization, a scavenging gas being used if desired. The cathode may be entirely of aluminium and may be semi-cylindrical or spherical. Part of the screw threads may be omitted. In another modification, the electrodes are conical and are moved axially to adjust their spacing. The tube may be gas-filled.
Patent GB-1208617-A (GB)
Title: Apparatus for imparting translational and rotational motion
IPC: C03B37/025
Filed: 1968-06-21
Abstract: 1,208,617. Zone-melting, &c. ARTHUR D. LITTLE, Inc. 21 June, 1968 [14 July, 1967], No. 29831/68. Heading BIS. [Also in Division F2] The pulling rod 19 of a pulling head 10 for a crystal growing apparatus using the Czochralski, zone refining, or Verneuil process is axially and rotatably movable by independent drives (see Division F2), the pulling head being readily connectable to a vessel 16, e.g. a quartz tube, in which the process takes place, by means of an adaptor (58) (Fig. 7, not shown) which makes a sealed connection with the vessel. The rod 19 extends through a seal in the adaptor, and may comprises coaxial tubes through which a coolant is circulated (Fig. 9, not shown). Induction heating is used. Zone refining or floating zone crystal growing apparatus (Fig. 2, not shown) uses two pulling heads at opposite ends of the vessel.
Patent GB-303958-A (GB)
Title: Improved process for the production and colouring of textile yarns, fabrics, and thelike
IPC: D06P1/673
Filed: 1927-11-08
Abstract: 303,958. Silver Springs Bleaching & Dyeing Co., Ltd., and Hall, A. J. Nov. 8,1927. Yarns having different depths or intensities of colour are made by employing alkali-treated and untreated regenerated cellulose artificial silks, with or without other fibres, and dyeing with direct or other dyes. The alkali-treated artificial silks have an increased affinity for the dyes and are dyed in deeper shades than the untreated fibres. Caustic alkalies are employed for the treatment, the concentrations and temperatures employed and the duration of the treatment depending on the alkali used. With caustic soda, solutions containing 3 to 6 per cent of the alkali are preferably employed; stronger solutions adversely affect the softness and other properties of the silk. With caustic potash, solutions of any strength may be used; preferably an 8 per cent solution is used at ordinary temperatures. The caustic alkalies may be used in conjunction with salts, such as sodium and potassium chloride, for the purpose of preserving the handle and lustre of the artificial silk, if desired.