baber/WOPTO huggingface dataset:
Patent GB-402107-A (GB)
Title: Improvements relating to the manufacture of fuel briquettes
IPC: C10L5/12
Filed: 1932-02-23
Abstract: 402,107. Agglomerating fuel. ROBERTS, A., 236, South Coronada, Los Angeles, U.S.A. Feb. 23, 1932, No. 5395. [Class 50.] An inorganic binder of the nature of cement is distributed throughout a pulverulent fuel mass by water or an aqueous solution or suspension about equal in weight to the binder when the fuel is fine enough to pass a screen of 30 meshes per linear in. and increasing in proportion as the fineness increases. The fuel particles are of a size capable of passing a screen selected between 25-100 mesh and the cement comprises in general not more than 5 per cent of the total mixture. A small amount of sodium or potassium chloride, boric acid or borax, or ferric oxide and flame colouring salts as of strontium may be added as by dissolving in the water which is then worked into the mixture. The mass is suitably pressed at 2000-10,000 lb. per sq. in. whilst at about 100‹-120‹ F., the preceding mixing being effected at about 180‹-250‹ F. or not exceeding 400‹ F. if the fuel itself includes organic binding material. Oxidizing agents or ignition accelerators such as copper or ferric oxide, or boric acid may be applied to the briquette surfaces. The fuel may comprise coal, coke, petroleum coke, lignite, peat, sawdust and spent tan bark. In an example 87.5 parts of coke of 30 mesh are mixed with 25 parts of hydraulic cement, 1-2 parts of boric acid, .5 parts of sodium chloride and 6 parts of water. The briquettes may be subjected to a temperature of 1000‹ F. or less for 30-90 minutes to render them smokeless.
Patent GB-1417756-A (GB)
Title: Process for the preparation of 3,5-dinitro-4-amino-phenyl-alkyl  sulphones
IPC: A01N41/10
Filed: 1973-02-02
Abstract: 1417756 3,5-Dinitro-4-aminophenylalkylsulphones CHINOIN GYOGYSZER ES VEGYESZETI TERMEKEK GYARA PIT 2 Feb 1973 [4 Feb 1972 (2)] 5401/73 Heading C2C A process for the preparation of compounds of The general formula   wherein either R<SP>1</SP> and R<SP>2</SP>, which may be the same or different, each represent a hydrogen atom, a straight or branched chain alkyl, heteroalkyl, aryl, aralkyl or cycloalkyl group; or R<SP>1</SP> and R<SP>2</SP>, together with the nitrogen atom to which they are attached, form a heterocyclic ring, and R represents a straight or branched chain alkyl, aralkyl or cycloalkyl group comprises reacting a compound of Formula III: wherein A represents an alkali metal with a compound of Formula II R-Z wherein Z represents a halogen atom. The reaction is conveniently carried out in an organic solvent, e.g. DMF, at room temperature or at a temperature of 40‹ C. or higher. The starting materials of general Formula III are new and may be prepared from the corresponding sulphinic acids or from a salt thereof, by converting the acid or salt into the corresponding sulphenyl halide of formula wherein X represents a halogen atom and reducing the compound thus obtained in the presence of an alkali metal salt. Conveniently the compound of Formula III thus formed is further reacted without previous isolation.
Patent GB-566771-A (GB)
Title: Improvements in or relating to the formation of coloured photographic images by colour development
IPC: G03C7/38
Filed: 1943-04-05
Abstract: A colour development coupler for incorporation in a silver halide emulsion or in a developer comprising an aromatic amino developing agent is a compound of formula <FORM:0566771/IV/1> wherein C are carbon atoms in a saturated cyclopentanone or cyclohexanone nucleus and R is a substituted amino group.  The coupler may have the formula <FORM:0566771/IV/2> in which n is 2 or 3, in which the benzene nucleus may be replaced by a naphthalene nucleus, and in which R1 may be one or more nitro, alkoxy, carbalkoxy (e.g. carbethoxy), alkyl-substituted amino, or sulphonic (or Na, K, or NH4 sulphonate) groups, or halogen atoms.  The ketone ring may contain one or more alkyl substituents except on the carbon atom common to the ring and the chain.  The coupler may also have the formula <FORM:0566771/IV/3> wherein n and m may be the same or different and may be equal to 2 or 3.  One or both of the terminal rings may contain an alkyl substituent or substituents and both rings may be similarly or dissimilarly substituted, e.g. by alkyl groups.  The central benzene nucleus may be replaced by a naphthalene nucleus, and may be substituted as before.  The coupler may be added in solution in methyl or ethyl alcohol or ethylene glycol, or a mixture of ethylene glycol and an alcohol.  In example 1, a solution in ethylene glycol and methyl alcohol of cyclopentanone-2-carboxylic acid p-nitranilide is added to a colour developer comprising N : N-diethyl-p-phenylenediamine hydrochloride.  Example (2) is similar, using the corresponding p-toluidide.  Example (3) is similar, using the corresponding p-phenylenedianilide.  Cyclopentanone-2-carboxylic acid p-toluidide is prepared by refluxing p-toluidine with ethyl cyclopentanone-2-carboxylate.  Cyclopentanone-2-carboxylic acid p-phenylenedianilide is similarly prepared.  The p-phenylenediamide of 5-methyl-2-carboxycyclohexanone and 2-cyclopentanone is prepared by first reacting 5-methylcyclohexanone-2-carboxylic acid ethyl ester with p-phenylenediamine and then reacting the product with cyclopentanone-2-carboxylic acid ethyl ester.  The p - phenylenediamide of 2 - carboxycyclo - hexanone and 2 - carboxycyclopentanone is similarly prepared. 2-Carboxy-4-methylcyclopentanone anilide is prepared by reacting 4-methylcyclopentanone-2-carboxylic acid ethyl ester with aniline. Cyclohexanone - 2 - carboxylic acid p - toluide is similarly prepared.  Cyclopentanone-2 : 4-dicarboxyanilide is prepared by reacting the diethyl ester of cyclopentanone-2 : 4-dicarboxylic acid with two molecular proportions of aniline.
Patent GB-1065021-A (GB)
Title: Method of, and apparatus for, indirect measurement of an elongate member having substantially uniform weight per unit length
Inventor: SHIPP PETER JAMES
IPC: G01N9/00
Filed: 1963-02-11
Abstract: 1,065,021. Fitting weighing-apparatus to cutting machines. BRITISH IRON & STEEL RESEARCH ASSOCIATION. March 10, 1964 [Feb.11, 1963], No.5443/63. Heading G1W. The length 'l' and weight 'u' per unit length of metal slabs or blooms (which can be assumed to be of uniform cross-section and density) are determined indirectly in order that the slabs may be cut into portions of required length or weight. A slab is supported at two points a known distance 'd' apart, the forces of reaction R 1 , R 2  are measured when one end is a predetermined distance 's' from one of the points and the spacing 'g' of the centre of gravity from a support point is calculated. The length 'l' and weight 'w' per unit length are then derived from a knowledge of 'g' and 's', the weight being R 1  + R 2 .
Patent GB-777326-A (GB)
Title: Improvements in or relating to electrical control circuits
Inventor: ROBINSON THOMAS PHILIP
IPC: G05B11/01
Filed: 1953-02-27
Abstract: 777,326. Inductance control systems for consumption apparatus. STANDARD TELEPHONES & CABLES, Ltd. Feb. 19, 1954 [Feb. 27, 1953], No. 5568/53. Class 38 (4). In a current control system comprising saturable reactors LSI-LS6 arranged in seriesconnected pairs in each live lead 1-3 with the D.C. control windings 8 of each pair connected in opposition to each other, each pair of reactors has a third pair of windings 9 connected in closed circuit in opposition through a resistance, such as a pair of reversely connected rectifiers MR1, variable inversely with current flow in the third windings. By this means elimination of even harmonic voltages from the D.C. windings is achieved without causing appreciable reduction in the speed of response of the reactors. To improve the response speed, without the necessity of excessive control power, the usual linear resistor in series with the control windings is replaced by a non-linear resistor, such as a rectifier MR6, the resistance of which rises sharply as the control 'current is reduced. The resistor may be shunted by a capacitor C which neutralizes part of the inductance of the control windings. The system shown, which is for use with an electrostatic precipitator, also includes shunt reactors LP1-LP6.
Patent GB-1366115-A (GB)
Title: Four wheel drive tractors
IPC: B60K17/344
Filed: 1971-02-26
Abstract: 1366115 Vehicle transmissions COUNTY COMMERCIAL CARS Ltd 4 Nov 1971 [26 Feb 1971] 5571/71 Heading B7H In a four wheel tractor the drive is permanently connected to one pair of wheels and is selectively connectable to the other pair of wheels via a gear train 15 mounted in a housing 17 which extends downwardly and outwardly from the change speed gear unit 13. In one embodiment the gear unit output shaft 21 drives the steered or non-steered rear wheels 11 via gear 23 and is splined to allow relative movement of a spur gear 22 which meshes in all axial positions with a gear 25 of train 15. A propeller shaft 18 is connected via a flange 35 to a splined shaft 33 carrying an internally splined sleeve 34 which is axially movable to engage or disengage a splined annular extension 32 of a gear 31. In another embodiment (Fig. 7, not shown) an hydraulic pump (50) is driven off train 15 and supplies fluid to front wheel motors (51) via a valve (52) which may be used to disconnect drive when required.
Patent GB-416265-A (GB)
Title: Improvements in shank collars for boring, drilling, punching and like tools, and in appliances for attaching the same
IPC: B25D17/24
Filed: 1934-02-20
Abstract: 416,265. Percussive drills; lever cramps. FLOTTMANN AKT.-GES., 94, Flottmannstrasse, Herne, Westphalia, Germany. Feb. 20, 1934, No. 5591. Convention date, Feb. 20, 1933. [Classes 61 (ii) and 124.] The collar of a drill steel, or punch is formed by a helical spring which is secured to the shank by the resilience of the coils b and which has free end coils b<1>. This spring is expanded to place it on the shank by a tool having a socket c to receive the spring and stops d, h to engage the ends of the coil when the arms f, i of the tool are moved relatively to each other.
Patent GB-1516644-A (GB)
Title: Seats
IPC: A47C3/16
Filed: 1976-02-10
Abstract: 1516644 Seats STOREY BROS & CO Ltd 10 Feb 1976 [10 Feb 1975] 5595/75 Heading A4M A sack or bean bag seat comprises a bag partially filled with beads or granules, at least the lower part of the seat being enclosed in or formed from a rigid or semi-rigid body. The body may comprise basketwork or be half-barrel shaped and may be shaped to give a back and/or arm rests. The bag may be porous or may have stitch holes to allow passage of air.
Patent GB-285876-A (GB)
Title: Improvements in boot trees
IPC: A43D3/14
Filed: 1928-02-22
Abstract: 285,876. Demoucron, G. J. Feb. 24, 1927, [Convention date]. Trees.-A boot tree comprises a resilient blade 1, a heel portion 2, and a front portion constituted by a fixed section 3 and two sections 4 loosely connected at the front by a tube 5 which passes through a bore in the section 3 and has its ends expanded in holes 7 in the sections 4. The sections 4 are spread outwardly by a spring 8 passing through the section 3 and abutting at its ends in recesses 9 in the sections 4. The connecting tube 5 might be replaced by a screw fixed in one section 4 and having its head loose in a shouldered hole in the other section. Separate trees may be provided for right and left boots.
Patent GB-1235922-A (GB)
Title: Projectile with annular fin assembly
IPC: F42B10/06
Filed: 1968-03-17
Abstract: 1,235,922. Projectiles. DYNAMIT NOBEL A.G. 17 March, 1968 [17 March, 1967], No. 5607/68. Heading F3A. A projectile in which the stresses occurring in a tail unit are minimized with the aid of openings in the unit. In one embodiment the projectile comprises a stabilizer ring 3, Fig. 1, supported by radial struts 5 and provided with continuously diverging rearwardly extending openings 7. The openings can extend approximately along half the length of the ring and may be semi-circular in shape. Openings 6 are provided in the struts. In a modification, Fig. 2, slots extend forwardly from the apexes of the openings 7 to divide the ring into arcuate segments. In another embodiment, Fig. 4, the stabilizer ring comprises an annular portion 11 and link portions 12 forming an extension of the side wall of the projectile. The supporting struts (not shown) extend beneath the link portions and are provided with a streamlined fairing or a fairing which causes the projectile to rotate in flight. The annular portion 11 may be right cylindrical, or convex (16), or concave 17.
Patent GB-1294763-A (GB)
Title: 3-oxo-2,3-dihydro-1,4-benzoxazine derivatives
Inventor: PESSON MARCEL
IPC: C07D265/36
Filed: 1970-02-06
Abstract: 1294763 3 - Oxo - 2,3 - dihydro - 1,4- benzoxazines LABORATOIRE ROGER BELLON 6 Feb 1970 [6 Feb 1969] 5945/70 Heading C2C Novel 3 - oxo - 2,3 - dihydro - 1,4 - benzoxazines of the general formula wherein each of R 1  and R 2  is a hydrogen atom or a C 1-5  alkyl group, each of R 3  and R 4  is a C 1-5  alkyl group or R 3 R 4 N is an optionally substituted 5- or 6-membered heterocyclic ring, X is O, (H 1 OH) or (H 1 H) and n is 1-4, and non- toxic acid addition salts thereof are prepared (a) when X is O or (H 1 H), by reaction of a halide of the general formula wherein halo is a halogen atom and X is O or (H 1 H) with an amine of the general formula R 3 R 4 NH, (b) when X is (H 1 OH), by reduction of the corresponding compound of the first general formula above wherein X is O and (c) when X is O and n is 2, by reaction of an amine salt of the general formula R 3 R 4 NH.HCl with formaldehyde and a 6-acetyl-3-oxo-2,3-dihydro- 1,4-benzoxazine of the general formula followed optionally by salification of the product. Halides of the second general formula above wherein X is (H 1 H) are prepared by catalytic hydrogenation of the corresponding compound wherein X is 0. Pharmaceutical compositions having central nervous system depressant activity comprise, as active ingredient, a 3 - oxo - 2,3 - dihydro - 1,4- benzoxazine of the first general formula above or a non-toxic acid addition salt thereof, in association with a pharmaceutically acceptable carrier, and may be administered orally or  intraperitoneally.
Patent GB-308064-A (GB)
Title: Improvements in or relating to centreless grinders
IPC: B24B5/307
Filed: 1928-02-25
Abstract: 308,064. Hughes, V. A. B., (Cincinnati Grinders, Inc.). Feb. 25, 1928. Centreless grinding; guides and rests. - In centreless grinding machines the work is supported in the grinding throat by a blade and is fed laterally towards the grinding wheel by a yielding regulating wheel until a positive adjustable stop is encountered. Instead of floating in the throat the work is guided by means exterior to the throat so as to form a cylindrical surface concentric with an internal bore or with a previously formed surface on or attached to the work. When operating on a sleeve or bush 10, the latter is mounted on a mandrel 11 whose ends are engaged by two pairs of rollers 27 rotatable on pins 26 carried by brackets 23 pivoted on spindles 21, while solid work pieces have their previously machined ends engaging the rollers. The surface of the work being operated upon is supported by a blade 16, vertically adjustable at 18 and locked by screws 19 in a fixed bracket 14 which carries the spindles 21. The brackets 23 have hoods 28 to protect the rollers from cutting fluid &c. and are adjusted to position the rollers for deter. mining the final size of the work by screws 29, one of which engages a fixed stop on the bracket 14 while the other engages a cam 37 rotatable by a hand lever to move the rollers to the workreceiving and cutting positions alternately. Springs 34 assist in removing the rollers from operative position. The regulating wheel may be made of rubber or other yielding material, or its slide may be fed towards the grinding wheel through the medium of springs so as to allow it to accommodate itself to eccentricities in the work and to yield when the work engages the rollers 27. The work may be removed by an ejector rod 42 actuated from a handle 45 through a lever 44, or both the ejector and the regulating wheel may be operated automatically.
Patent GB-557455-A (GB)
Title: Improvements in the control of road vehicles
IPC: B60T1/14
Filed: 1942-05-05
Abstract: 557,455. Door operating appliances. SMART, F. May 5. 1942, No. 6023. [Class 65 (i)] [Also in Groups XXXI and XXXIV] In a system for controlling road vehicles described as for use with pedestrian side-walks separated from the roadway by barriers having automatically controlled gates 2 at predetermined crossing places, each vehicle is provided with a brake-shoe normally held raised by a spring and the roadway is provided with surface portions 1, Fig. 1, over which a vehicle approaching the crossing place must pass and which are magnetized, when the crossing gate 2 is open, to pull the brake-shoe into contact with the surface to stop the vehicle. The roadway is also provided with members 7, 8, 9, 10 depressible by the vehicles to operate switch devices. In operation the gate 2 is opened and closed at predetermined intervals, surface 1 being demagnetized when the gate is closed and the road is free for traffic. When the gate is open surface 1 is magnetized. A vehicle approaching the crossing depresses member 7 to complete a circuit through contacts of members 10 to energize a device for retaining the gate in closed position when it is subsequently closed, the vehicle being arrested on surface 1. A following vehicle depressing member 8 receives an audible warning in the region of said member. When the gate is closed after the predetermined interval, it demagnetizes area 1 allowing the vehicle to proceed and is held closed until the vehicle passes and operates member 10 to de-energize the retaining device, allowing the gate to be re-opened in due course. Should a vehicle have passed surface 1 when the gate is about to open, depression of member 9 retains the gate closed until the vehicle has passed and operated member 10. A system is also described using a series of surfaces such as 1 together with depressible devices whereby a vehicle entering an energized surface causes the energization of the next surface to the rear. Figs. 8, 9 show the gate-operating means comprising a continuously driven motor 20 rotating, through worm 21, a shaft 15 carrying a pair of cams 16 which act alternately on sliders 17, respectively connected by links 18 with opposite ends of an arm 19 carried by a vertical shaft pivoted in bearings 14 and transmitting its angular to and fro movement through a friction clutch 13 to the pivoted post 12 on which the gate 2 is hung. The clutch allows the gate to be held in closed position whilst arm 19 continues to move idly. The holding means comprise a horse-shoe magnet 24 co-operating with an armature 23 on an arm 22 carried by post 12, arm 22 operating contacts 26, 27 which control energization of the road surfaces 1. Armature 23 registers with the poles of magnet 24 when the gate is in closed position, in which energization of the magnet is sufficient to hold the gate against opening movement.
Patent GB-180434-A (GB)
Title: An appliance for indicating location of faults in section feeder-boxes of systems of electric traction and in lead sheathed or armoured main cables
IPC: G01R31/08
Filed: 1921-02-22
Abstract: 180,434. Brecknell, Munro, & Rogers, Ltd., and Brecknell, F. W. Feb. 22, 1921. Falling-flap indicators. -An appliance for indicating the location of faults comprises a solenoid 1 and a pivoted indicator or signal 10 so formed and arranged that it is normally maintained by gravity in a position adjacent to an armature of the solenoid 1 and that, when rotated to a certain extent by the armature, it is moved into, and is retained in, its indicating position by gravity until returned to its normal position by hand or by hand-operated means. In the form shown, the solenoid 1 is mounted on an insulating tube 2 carried between bent-over ends 3, 4 of an iron or steel bracket 5 and provided with an extension 6 closed by a detachable cap 7, the tube 2 containing a movable armature preferably in the form of a light steel tube. A coloured indicating tablet 10 is pivotally mounted above the end 3 of the bracket 5 so that, when the solenoid is energized by fault current, a finger or the like of insulating and non-magnetic material attached to the armature engages the tablet 10 through an aperture in the end 3 of the bracket 5 and moves it into the danger-indicating position. A counterweight 13 mounted on the tablet 10 near its pivot 14 normally prevents accidental actuation of the tablet due to vibration but assists the tablet 10 to turn over to the danger-indicating position when the solenoid is energized.
Patent GB-397902-A (GB)
Title: Improvements in or relating to electric fires
IPC: F24C7/08
Filed: 1932-02-29
Abstract: 397,902. Combined electric radiator and prepayment meter. GENERAL ELECTRIC CO., Ltd. and DUNCOMBE, C. R., Magnet House, Kingsway, London. Feb. 29, 1932, No. 6074. [Class 27.] In an electric fire comprising a prepayment meter for controlling the supply of power to the heating means, a container for the meter and at least one electric heating element mounted on the container, the heating elements 5, as shown in the Figure, are of the radiant type and are arranged above the meter 8 on a part supported by the container 1 or on a part of the container which is set back from the front thereof or the front of a lower part. As shown, the elements 5 are mounted on a slanting upper part of the container 1. which is provided with a handle 2. This part is separated from a lower compartment, in which the meter 8 is mounted, by a thin metal plate 3 carrying an insulating strip 4 provided with terminals 20 which are connected to the elements 5. The front of the lower compartment has a hinged door 9 carrying a locking latch 10 and a rotatable knob 13, the shaft 12 of which engages a projection 14 on the operating shaft of the coinfreed mechanism of the meter. The meter is provided with a coin counter, a consumption index, and a coin box, from which the coins may be removed by opening the front 9. The container has a coin insertion slot 15 which is closed by a plate 16 when the meter is removed for inspection. A resilient metal strip 21 is provided for returning a " coins-unused " pointer to zero.
Patent GB-543887-A (GB)
Title: Process for the purification of manganous sulphate solutions
IPC: C01G45/10
Filed: 1940-04-04
Abstract: 543,887. Manganous sulphate. CONSOLIDATED MINING & SMELTING CO. OF CANADA, Ltd. April 4, 1940, No. 6100. Convention date, April 18, 1939. Drawings to Specification. [Class 1 (iii)] [Also in Group XXXVI] In the purification of solutions of manganous sulphate a stream of hydrogen sulphide is passed through the solution to cause complete precipitation of metallic impurities as sulphides, the solution at the same time being in contact with excess of a solid reagent (e.g. calcium carbonate) which will neutralize the sulphuric acid produced and maintain the pH of the solution at a point such that the precipitated impurities are not dissolved but no manganous sulphide is precipitated, the precipitate being separated and the excess hydrogen sulphide removed from the solution. The solution may first be treated by acidification and oxidation to convert iron into the ferric state and then precipitating it as ferric hydroxide. Sulphides of cobalt, nickel and cadmium are among the compounds precipitated by the hydrogen sulphide treatment. The solution of manganous sulphate finally obtained is employed as electrotype for the deposit of metallic manganese.