baber/WOPTO huggingface dataset:
Patent GB-381851-A (GB)
Title: Improvements in and relating to turbine blades
IPC: F01D5/28
Filed: 1932-03-23
Abstract: An crosion-resisting blade for gas turbines is made of an iron alloy containing 15-20 per cent of tungsten, 1-3 per cent of vanadium, and 2-4 per cent of aluminium, with or without up to 20 per cent of chromium, and up to 10 per cent of molybdenum.
Patent GB-802829-A (GB)
Title: Methods for producing fertilizers and product thereof
IPC: C05B13/06
Filed: 1956-03-21
Abstract: Phosphate fertilizers are made by mixing calcium meta phosphate with 15 to 30 per cent by weight of water and then heating the mixture and tumbling in a drying atmosphere at 200 DEG  to 800 DEG  F., whereby the mixture is formed into nodules with an exterior crust. The meta phosphate, first preferably ground to 8/200 mesh, is wholly or partially hydrolysed to mono-calcium o-phosphate. Treatment is accelerated by adding to the water up to 10 per cent of an acid, e.g. sulphuric, phosphoric, hydrochloric, or nitric acid.  The product is then cured and may be ammoniated.
Patent GB-383154-A (GB)
Title: Manufacture of stabilised halogen derivatives
IPC: C08C19/12
Filed: 1932-03-24
Abstract: Halogen derivatives of caoutchouc are stabilized by treatment with a basic substance at a raised temperature not above 150 DEG  C., with or without the presence of a solvent of the halogen derivative; loosely-bound halogen is thus removed, and the product is stable up to about 200 DEG  C.  Suitable basic substances are alkali and alkaline earth oxides and hydroxides, salts of alkaline reaction such as sodium carbonate and acetate, alcoholic alkali, hydrates, and tertiary aliphatic or aromatic amines such as dimethyl aniline, and pyridine.  Suitable solvents are alcohols, hydrocarbons, and chlorinated hydrocarbons such as carbon tetrachloride.  In examples chlorinated caoutchouc in carbon tetrachloride is (1) treated with a current of air to remove, free chlorine, and boiled with caustic potash in methyl alcohol; (2) heated to 60 DEG  C. in an autoclave with 20 per cent caustic soda; (3) boiled under reflux with anhydrous sodium carbonate.  (4) Chlorinated caoutchouc in solvent naphtha is heated with pyridine, which is finally removed by blowing in steam; (5) chlorinated caoutchouc is heated with 1 per cent calcium hydroxide solution, acidified, washed, and dried; (6) brominated caoutchouc in carbon tetrachloride is boiled with caustic potash in methyl alcohol, the product being isolated by adding alcohol.ALSO:Halogen derivatives of caoutchouc are stabilized by treatment with a basic substance at a raised temperature not above 150 DEG  C., with or without the presence of a solvent of the halogen derivative; loosely-bound halogen is thus removed, and the product is stable up to about 200 DEG  C.  Suitable basic substances are alkali and alkaline-earth oxides and hydroxides, salts of alkaline reaction such as sodium carbonate and acetate, alcoholic alkali hydrates, and tertiary aliphatic or aromatic amines, such as dimethyl aniline and pyridine.  Suitable solvents are alcohols, hydrocarbons, and chlorinated hydrocarbons such as carbon tetrachloride.  In examples, chlorinated caoutchouc in carbon tetrachloride is (1) treated with a current of air to remove free chlorine, and boiled with caustic potash in methyl alcohol; (2) heated to 60 DEG  C. in an autoclave with 20 per cent caustic soda; (3) boiled under reflux with anhydrous sodium carbonate.  (4) Chlorinated caoutchouc in solvent naphtha is heated with pyridine, which is finally removed by blowing in steam; (5) chlorinated caoutchouc is heated with 1 per cent calcium hydroxide solution, acidified, washed, and dried; (6) brominated caoutchouc in carbon tetrachloride is boiled with caustic potash in methyl alcohol, the product being isolated by adding alcohol.
Patent GB-1287793-A (GB)
Title: Process for the preparation of 2-hydroxy-3-substituted cyclopent-2-en-1-ones and intermediates therefore
IPC: A23L27/20
Filed: 1969-10-31
Abstract: 1287793 2 - Hydroxy - 3 - alkylcyclopent - 2- on-1-ones and intermediates therefor PFIZER Inc 31 Oct 1969 [10 Feb 1969 28 April 1969] 8917/71 Divided out of 1287792 Heading C2C The invention comprises compounds of the formula wherein both Xs are either Br or C1, lower alkoxy contains from 1 to 5 C atoms, and R is C 1  to C 6  alkyl, benzyl or substituted benzyl. They may be obtained by treating an alkali metal salt of 2 - carbo - (C 1 -C 5 ) - alkoxycyclopentan - 1- one with a (C 1 -C 6 ) alkyl halide or benzyl halide in the absence or presence of an alkali metal iodide and chlorinating or brominating the resulting compound by treating it with elemental Br 2  or Cl 2 , or sulphuryl chloride or bromide, The invention also comprises the preparation of compounds of the formula by hydrolysis of a compound of Formula II. Examples are given for the preparation of compounds of Formulµ I and II. The compounds of Formula I are useful as food additives. The alkali metal salt of 2-carbo-(C 1 -C 5 ) alkoxy-cyclopentan-1-one may be obtained by adding a dialkyladipate to a slurry of a base in an anhydrous inert solvent and distilling the mixture.
Patent GB-277385-A (GB)
Title: Improvements in submarine mines
IPC: F42C14/04
Filed: 1916-06-24
Abstract: 277,385. Skipwith, H. L. d'E., and Gwynne, A. L. June 24, 1916. Mines, marine.-A safety switch 15, 15<1> for the circuit of horn batteries is arranged within the mine 3 and is closed by the buoyancy of the mine when a spindle 5 controlled by a spring 17 is pulled out by the tension of the mooring cable attached to an eye 6 on the spindle. The spindle is made watertight by a diaphragm 11, and its movement is delayed by a soluble plug 28 to which water is admitted by a port 32. The passage between the port 32 and the plug 28 is opened by the initial movement of the spindle moving a sealing rubber ring 31 out of the way. The outward movement of the spindle, besides closing the switch 15, 15<1>, may be made to release a catch 19, by means of a bell-crank lever 18, to allow the primer 22 to drop over the detonator 23. A spring may be provided to assist gravity in causing the drop of the primer. This catch device may be replaced by a mechanism which lowers the primer when the spindle is pulled out and raises the primer when the spindle moves in if the tension of the mooring cable ceases, the switch being at the same time re-opened.
Patent GB-116915-A (GB)
Title: Improvements in and relating to Dynamo Electric Machines.
IPC: H02P9/12
Filed: 1917-06-21
Abstract: 116,915. British Thomson - Houston Co., and Pollock, A. A. June 21, 1917. Systems for continuous-current motors only.- In a system of electric drive for rolling mills in which the mill motor j is supplied with a curreut from a reversible generator a, the field of the latter is excited by a reversible exciter b having a main field-winding d and opposing field-winding c excited by current supplied by the generator to the motor. The exciter b and the exciter h of the motor may be driven by an induction motor k. Specification 22817/04. [Class 35, Dynamo-electric generators &c.], is referred to.
Patent GB-118584-A (GB)
Title: Improvements relating to Electric Fuse Carriers.
Inventor: ROBINSON ALFRED CHARLES
IPC: H01H85/20
Filed: 1918-05-31
Abstract: 118,584. Robinson, A. C., and Checketts, A. C. May 31, 1918. Fusible cut-outs. -In a distribution fuse-board of the kind in which the fuses are carried by removable bridge members 1 having blade contacts 2 to engage with clip contacts 5 mounted on base members 4, one of the clip contacts is extended rearwardly, and bent to form a spring clip to engage with the bus-bar 7, and the other clip contact is extended to form a clamping-connexion 9. The base members are held in position by screws 11 engaging the crossbatten 10. The blade contacts and clip contacts are mounted in a self-alining manner by means of screws 3, 6.
Patent GB-511931-A (GB)
Title: Improvements in or relating to door locks
IPC: E05B55/00
Filed: 1939-03-21
Abstract: 511,931. Latches and locks. ELZETT EISENWARENFABRIK AKT.-GES. March 21, 1939, No. 8995. Convention date, Dec. 9, 1938. [Class 44] In a latch of the kind in which the latch bolt may be shot by key to serve as a lock bolt, and in which, in its normal position as a latch bolt, retraction is effected by a handle-operated follower acting through a bell-crank lever, the end 10 of one arm 9 of the bell-crank lever is of cylindrical form concentric with the lever pivot 4. Normally the follower is held by spring 7 with a projection 8 abutting against the lock case and the end of follower arm 6 just clear of the cylindrical surface 10, so that when the follower is moved clockwise by depressing the handle, not shown, the end of arm 6 engages the side 11 of arm 9, moving the bell-crank lever anti-clockwise so that its other arm 13 retracts the bolt 2. When the bolt is shot by key the bell-crank lever is moved clockwise to a position in which the end of arm 6 engages the cylindrical surface 10, thus preventing operation by the handle.
Patent GB-609898-A (GB)
Title: Improvements relating to display boxes and the like
IPC: G09F5/02
Filed: 1946-03-25
Abstract: 609,898. Display boxes. ALTON & CO., Ltd., and ALTON, E. G. March 25, 1946. No. 9083. [Class 18] A display box for cigars, &c., comprises a body 1 and a hinged lid 4 and has containers 5, 6, 7 connected together by links 10, 11, 12, pivoted therein, the container 5 being secured to the lid. Pivots 13, 14 on the container 7 are constrained to run in straight grooves 15 in the box body so that the containers are vertical when the lid is open and are rested horizontally when the lid is closed. The movement of the pivots is limited by stops 2, 3. The containers may be partitioned.
Patent GB-232766-A (GB)
Title: Improvements in or relating to sowing machines
IPC: A01C7/04
Filed: 1924-04-10
Abstract: 232,766. Thirtle, T. H., and Smyth & Sons, Ltd., J., (Oakes, G. C.). April 10, 1924. Seed drills. - A seed drill comprises a rectangular main frame mounted on two rear carriage wheels and a front steerable wheel, trailing frames pivoted to the main frame and carrying furrowing and seed covering devices, and spoon-wheel mechanism for feeding seeds singly to the furrows. The carriage wheels 2 are mounted on side bars 3, and the front wheel 4 on a standard 5 carrying a steering handle 8 extending rearwardly to the driver's seat. The wheel 4 may be replaced by two wheels near together and mounted so that their axle may turn about a horizontal axis as well as a vertical axis. The trailing frames 12 are U-shaped in plan and are braced by wooden blocks. They are adjustably pivoted on brackets 11 on a cross-bar 10 and their downward movement is limited bv hooks on rods 28. These rods may also be provided with hooks 30 to support the frames in raised positions for travelling purposes. Two conical wheels 14 are mounted on each frame 12 to cover the seeds and press the furrowing-devices into the ground. These latter each consist of two unequal discs 16, Fig. 10, inclined to one another and mounted so that they touch each other and the conical or flat ends of their hubs roll upon one another. Their inclined axles 20 are secured by collars and nuts and are each bored to form a passage from a grease cap 26 to the hub 24. The seeds are delivered between the discs 16 by pivoted and telescoping straight tubes 27. The seed box 1 is divided into hopper-like compartments fitted with adjustable slides to regulate the quantity delivered to spoon-wheels which deliver the seeds singly through adjustable funnels to the tubes 27. The spoon-wheels are mounted on shafts connected by fiexible couplings and driven from one of the wheels 2 by variable chain gearing and a clutch. The circular spoons 44, Fig. 9, are interchangeable and are carried by arms 43 projecting laterally from disc wheels. They have flat bottoms with sides inclined at 135‹ to them. The arms 43 may be riveted in square holes in the discs and arranged so that the tops of the spoons are in radial planes. A pivoted track marker is provided at each end of the front cross-bar 6. In the modification shown in Fig. 3, the frames 12 carry claw-like blades 48<*> instead of wheels or in addition to them. They are braced by bent cross members supporting the lower ends of the tubes 27, and are pressed down by springs surrounding rods 50 pivotally connected to cranks 51 which are adjustable simultaneously by means of a screwed handle 54 and swivelling nut 53. Specification 4944/91 is referred to.
Patent GB-564121-A (GB)
Title: Improvements relating to the manufacture of containers from metal sheets
IPC: B65D25/14
Filed: 1943-06-07
Abstract: 564,121. Fluxes. PYRENE CO., Ltd. (Parker Rust-Proof Co.). June 7, 1943, No. 9122. [Class 82 (ii)] [Also in Group XXII] Soldering.-In making containers such as cylindrical cans for foodstuffs, paint, &c., a metal sheet is provided over its whole surface with a light-weight phosphate coating weighing not more than 150 mg. per sq. foot of surface, a coating of paint, lacquer or enamel is then applied to the whole of the phosphate coating except those areas which are to be soldered and the unpainted areas are then united insoldered seams with the use of an acid flux. The lightweight phosphate coating, which preferably does not weigh more than 110 mg. per sq. foot, is applied as described in Specification 557,846. The flux which is prevented by the paint coating from reaching any but the unpainted areas, may consist of an aqueous solution of 35 to 45 per cent zinc chloride, and ¢ to 1¢ per cent of free hydrochloric acid to which 3 to 8 per cent of ammonium chloride may be added. The part may be between the different edges of a single piece of metal or between two or more edges of separate pieces, such as the body and the bottom or top of a container. Large sheets for forming small containers may be painted by roller coating and narrow strips of phosphate coating left unpainted and the sheets cut to size through the centre of the unpainted strips. Specification 554,348 also is referred to.
Patent GB-1092446-A (GB)
Title: A liquid mixture analyser
Inventor: TENNANT FRANK EDWARD
IPC: G01N9/12
Filed: 1966-03-02
Abstract: 1,092,446. Determining the proportion of a liquid in an immiscible mixture. ESSO RESEARCH & ENGINEERING CO. March 2, 1966, No. 9190/66. Heading B1X. The percentage by weight of one liquid in a mixture of that liquid and another liquid, e.g. water in a water and oil mixture, is determined by passing the mixture firstly through a density meter 11, then into a selector 13 where a membrane 14 blocks the passage of the one liquid, the remaining stream of liquid flowing through line 21 to a second density meter 12. A comparator device 18 determines the difference between the readings of meters 11 and 12, or from this and knowing the density of the blocked liquid, e.g. water, the required percentage can be calculated. The density meters may be buoyant plummets housed in a vessel to which they are connected by chains, see Figs. 1 and 2 not shown, or alternatively may comprise a radioactive source and a sensitive radiation detector on opposite sides of the flow of liquid. A differential pressure controller 15 maintains a positive pressure difference across the selector, which may contain a fabric or paper membrane coated with a water repellant material.
Patent GB-396859-A (GB)
Title: Process for obtaining fast tints on wool
IPC: D06P3/22
Filed: 1932-03-31
Abstract: Wool is grounded with an unsulphonated arylide of 2 : 3-oxynaphthoic acid containing no SO2NHR group under specified conditions and developed by means of a diazotized amine of the general formula: <FORM:0396859/IV/1> where one x = - NHCOR (R = alkyl, aralkyl aryloxyalkyl, aryl) and the other x and also y = H, halogen, alkyl or alkoxy.  The grounding conditions are (a) the liquor ratio is from 6 : 1 to 50 : 1, (b) not more than 5 per cent of the arylide on the weight of wool, (c) the caustic soda used is from 1,5-2,5 times the amount of arylide but should not exceed 4 gms./litre of grounding liquor, (d) the grounding bath should be exhausted.  An electrolyte may be present in the bath.  A list of suitable components is given in the Specification.  Fast red and blue tints are obtained.  In examples the following dyes are made on wool: (1) 1-amino-4-benzoylamino - 2 : 5 - dimethoxybenzene--> p-chloranilide; (2) 1-amino-4-benzoylamino-2 : 5-diethoxybenzene --> a -naphthylamide, (3) 1 - amino - 4 - benzoylamino -2 - methoxy - 5 - methylbenzene --> anilide.  Specifications 283,838, 310,758, and 312,297, [all in Class 15 (ii), Dyeing, Processes &c. for], are referred to.
Patent GB-454242-A (GB)
Title: Improvements in electrolytic condensers
IPC: H01G9/14
Filed: 1935-03-25
Abstract: 454,242. Electrolytic condensers. ELEKTRIZITATS AKT. - GES. HYDRAWERK, 32, Drontheimerstrasse, Berlin. March 25, 1935, No. 9308. Convention date, June 2, 1934. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 25, 1935.] [Class 37] An electrolytic condenser for high voltages is constructed of multiple units connected in series, the connections between the units being made within the common casing of the complete condenser and provided with leads to terminals on the exterior. In the example shown diagrammatically, two units a, b are enclosed in one casing c, there being three external terminals, an anode f, a joint terminal d and a cathode e. Methods of applying testing instruments or forming voltages, after assembly, to the various part-capacities are described. The Specification as open to inspection under Sect. 91 comprises also examples of multipleunit electrolytic condensers in which the series connection between the units is effected by joining separate external terminals. The units may be superposed and the junction may be made with fuse-wire. This subject-matter does not appear in the Specification as accepted.
Patent GB-718901-A (GB)
Title: Electronic digital computing engines
Inventor: DAVIES DONALD WATTS
IPC: H03K5/05
Filed: 1951-04-21
Abstract: 718,901. Digital electric calculating apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 9, 1952 [April 21, 1951], No. 9335/51. Drawings to Specification. Class 106 (1) An electronic digital computor comprises means for widening digit pulses of words and delaying each pulse until it occupies the centre of what would normally be the next pulse period, the means being operative before the words undergo at arithmetical or logical operation. Since pulses in one series-mode train may not be quite contemporaneous with pulses in another train, the pulses are widened, preferably to occupy a whole digit period, by a circuit such as that described in Specification 717,115. In order to correct for the delay inherent in the widening process, further delaying means are employed to bring the widened pulse into the next succeeding digit period, and the pulse-train is retimed to be in synchronism with the main storage of the computor. After undergoing arithmetical or logical operations as described in Specification 700,007, the wide pulses may be re-shaped under control of clock pulses. Specification 717,114 also is referred to.
Patent GB-850568-A (GB)
Title: Improved blends of polyisobutylene and polypropylene
IPC: C08L23/22
Filed: 1959-03-18
Abstract: A composition comprises a blend of polyisobutylene and from 5 to 50% of the blend of amorphous linear polypropylene.  The polyisobutylene has a molecular weight of 150,000 to 300,000 and the polypropylene of 2000-100,000.  The polypropylene is prepared by the low pressure process.  Antioxidants and stabilizers e.g. N-lauroyl-aminophenol, phenylbetanaphthylamine and bisphenol type stabilizers may also be present.  Specification 810,023 is referred to.
Patent GB-546850-A (GB)
Title: Improvements in or relating to a control system for vapour electric discharge devices
IPC: H02H7/127
Filed: 1941-07-24
Abstract: 546,850. Converting. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 24, 1941, No. 9386. Convention date, Aug. 2, 1940. [Class 38 (ii)] In a converting arrangement in which power is transmitted between an A.C. network 2 and a D.C. network 1 through a transformer 3 and a group of mercury arc discharge devices 4 of the type in which ignition is controlled by current impulses supplied to immersion ignitor electrodes 8 through grid-controlled auxiliary valves 10 and exciting potentials derived for example from tappings on a transformer 9 supplying ignition current are applied to anode shields 7, a relay 26 responsive to fault conditions is provided to apply blocking potential to the grids of the valves 10 and to actuate a further relay 31 whereby negative potential is applied to the anode shields. A potentiometer 23 fed by an auxiliary rectifier 22 serves to block the ignition control valves 10, to provide operating current for the relay 31, and also to render the anode shields negative on operation of relay 26, the windings of the latter being connected to current transformers 25 on the A.C. side of the converter. The relays may be of the fast closing slow opening type or of the time controlled type so that the converter is only shut down for a time interval sufficient to enable normal conditions to be restored.
Patent GB-1426573-A (GB)
Title: Weighing machines
IPC: F17C13/02
Filed: 1973-02-27
Abstract: 1426573 Automatic weighing DISTILLERS CO (CARBON DIOXIDE) Ltd 15 Feb 1974 [27 Feb 1973] 9566/73 Heading G1W The filling of a cylinder with liquid carbon dioxide is controlled by a weighing machine having a dial, a pointer, a permanent magnet 7 mounted on the pointer or an arm 6 moving with pointer, normally open reed switches 9, 10, 11 operable by the magnet, and a control circuit (Fig. 3). The filling apparatus comprises a continuously running pump 21 having its inlet connected to a supply a by-pass 25 containing a solenoid valve 18 and connecting the outlet of the pump to the supply, and a connection 29 containing a solenoid valve 19 and to which the cylinder to be filled is connected. The control circuit includes an A.C. transformer 12, a D.C. relay R including a diode rectifying network, solenoids 16, 16 which energized respectively open and close valve 18, and solenoid 17 which when energized opens valve 19. In use, an empty cylinder is placed on the weighing machine which is then adjusted until the pointer reads zero, and reed switch 9 is therefore closed. Switch 15 is used to select reed switch 10 or 11 according to the size of the cylinder and switch 13 is pressed to energize relay R. Holding contacts Ra maintain the relay energized when switch 13 is released. When relay R is energized contacts Rb energize solenoids 16 17 so that valve 18 is closed and valve 19 is open. When reed switch 10 or 11 is closed by magnet 7, the coil of relay R is short circuited, contacts Ra open and contacts Rb switch over causing solenoid 17 to be de-energized and solenoid 16 to be energized, thus closing valve 19 and opening valve 18. Switch 31 is then operated to open solenoid valve 28 to vent connection 29 to atmosphere. The filling apparatus includes a non-return valve 24, a safety valve 26 and a damping chamber 27. In damping chamber 27, a heating element 28 maintains a body of gas which damps out the pulses produced by pump 21.