baber/WOPTO huggingface dataset:
Patent GB-496819-A (GB)
Title: Process for the manufacture of new dyestuffs of the phthalocyanine series
IPC: C09B47/06
Filed: 1937-06-12
Abstract: Dyestuffs are manufactured by heating with urea and a metal salt a diphenyl-3 : 4-dicarboxylic acid containing a further carboxylic acid group, or a mixture thereof with another aromatic compound containing two carboxylic acid groups in o-position to each other.  The reaction is advantageously carried out in the presence of boric acid or of compounds of elements of Group V of the periodic table, e.g. molybdates, vanadates or phosphates.  The products are green dyestuffs having a substantivity towards materials containing cellulose, and are capable of being transformed into lakes, e.g. by means of alkaline-earth metals. In examples: (1) diphenyl-3 : 4 : 6-tricarboxylic acid is heated with urea and cuprous chloride in the presence of boric acid and ammonium molybdate; the product dyes cellulosic materials such as cotton, viscose or copper artificial silk yellowish-green shades; with calcium or barium salts it yields lakes which may be used on a substratum such as aluminium hydroxide as pigments; (2) 41-chlorodiphenyl-3 : 4 : 6-tricarboxylic acid is heated with urea and copper chloride in the presence of ammonium molybdate; the product dyes cotton or other cellulosic materials green shades; (3) 41-methoxydiphenyl-3 : 4 : 6-tricarboxylic acid is similarly treated (yellowish green shades); (4) 21-chlorodiphenyl-3 : 4 : 6-tricarboxylic acid is similarly treated (bluish green shades); (5) diphenyl-3 : 4 : 6-tricarboxylic acid is heated with urea, nickel chloride and ammonium molybdate (green shades); (6) diphenyl-3 : 4 : 41-tricarboxylic acid is heated with urea, cuprous chloride, boric acid and ammonium molybdate; (7) diphenyl-3 : 4 : 31-tricarboxylic acid is similarly treated.  Specifications 464,126 and 470,542 are referred to.  Diphenyltricarboxylic acids.-The 3 : 4 : 6-acid and its 41- and 21-chloro- and 41-methoxy derivatives are obtainable by reacting cinnamic acid, 4- and 2-chlorocinnamic acid and 4-methoxycinnamic acid respectively with 2 : 3-dimethylbutadiene and oxidizing the products.  The 3 : 4 : 41-acid is obtainable by nitrating diphenyl-3 : 4-dicarboxylic acid, reducing the nitro group, converting the amine to the nitrile by Sandmeyer's reaction and saponifying the nitrile.  The 3 : 4 : 31-acid is obtainable by reacting m-ditolyl with acetyl chloride in the presence of aluminium chloride and nitrobenzene, and oxidizing the resulting acetyl compound first with alkaline potassium permanganate and then with chlorine water.
Patent GB-515444-A (GB)
Title: Improvements in or relating to multi-flame gas burners
IPC: F23D14/04
Filed: 1938-06-01
Abstract: 515,444. Gas burners. MAIN WATER HEATERS, Ltd. (formerly OMNIA MANUFACTURING CO., Ltd.), and GREGORY, A. R. June 1, 1938, No, 16440. [Class 75 (i)] In a multi-flame gas burner, particularly for water heaters, and of the luminous kind comprising a plurality of perforated burner tubes 14, 15 extending laterally from one or each side of a common supply pipe 10, the tubes 14, 15 are arranged in. two different planes. In the form shown in Figs, 2 and 3 the tubes 15 extend through the pipe 10 above the axis thereof and communicate therewith through apertures 17, and the tubes 14 are cut away to engage over the top of the pipe 10 provided with apertures 19. The tubes are secured by welding or brazing and closed at the ends by squeezing. The outlets 21, 22, 24 are arranged in staggered relationship and decrease in size. Outlets 23 are provided also in the middle of each tube 14. In a modification, Fig. 5, the tubes 14, 15 are circular in configuration, and the tube 15 may be formed in semi-circular parts, the ends of which are inserted in apertures in the pipe 10. The outlets are all of the same size. Alternatively, the tubes 14, 15 may extend outwardly and upwardly in the form of a wide-angled V from the pipe 10 to facilitate ignition by a pilot-light located in the crutch of the V. The tubes may be bent to the required angle after assembly in the pipe. Dimensions of the burners are given.
Patent GB-258669-A (GB)
Title: An improved burglar alarm
IPC: H01H35/14
Filed: 1925-06-25
Abstract: 258,669. Becker, L. A. de. June 25, 1925. Gravity and inertia switches. - A ball 5 is carried by a support 4 which is surrounded by an upstanding ring 7 so that when the ball is displaced it falls into the channel 8 between the support and ring and completes the circuit of a bell 2. The ball, support, and ring may be contained in a box 1 of millboard &c., to be secured to a door, window-sash, &c., and the bell 2 and battery 3 may be included in the box. The support may take the form of a pillar, in which case the ring 7 would be of inverted conical form. The dome or support 4 may be carried by a spring which, when the ball 5 is displaced, presses the dome against a contact on the lid of the box to ensure the alarm ringing even if the ball fails to complete the circuit. In this case, two upstanding rings, one electrically connected to the dome, are provided to form a channel into which the ball falls. The dome 4 may be corrugated.
Patent GB-439205-A (GB)
Title: Improvements in or relating to modulated carrier wave transmitters
IPC: H03C1/62
Filed: 1934-06-02
Abstract: 439,205. Valve modulating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and DITCHAM, W. T., Tudor House, Broomfield. Road, Chelmsford. June 2, 1934, No. 16504. [Class 40 (v)] To avoid waste of power in the modulating- valve of a plate-modulated carrier wave system, the grid bias is varied automatically according to signal volume. The signal is applied at A1, A2 through a transformer T2 to the grid of the modulating-valve V1 which has its plate circuit transformer-coupled at T1 to the plate circuit of the carrier-wave amplifier or generator V2. The grid of the valve V1 is biassed nearly to cut-off by a battery B, and as the signal strength rises this bias is reduced by voltages across the resistance R2. For this purpose the signal is applied through a transformer T3 to a fullwave rectifier D1, D2 which has the resistance R2 as its load. Signal-frequency voltages are shunted by a condenser C2. In order that the bias may change before the signal arrives on the grid of the valve V1 a delay network may be associated with the transformer T2, or the signal may be recorded on a telegraphone or gramophone record, and two pick-up devices used one for supplying the channel T2 and the other the channel T3. The secondary winding of the transformer T1 may be connected to the plate of the valve V2 through a condenser so that it does not carry the direct plate current.
Patent GB-170335-A (GB)
Title: Improvements in or relating to the distributing mechanism of typographical composingand casting machines
IPC: B41B11/18
Filed: 1920-06-18
Abstract: 170,335. Linotype & Machinery, Ltd., Carter, R. D., and Billington, J. E. June 18, 1920. Addition to 167,633. Distributing matrices.-In machines having a number of magazines co-operating with two distributors, the matrices are distributed to any two successive magazines by means of a movable fontselecting bridge, which co-operates with notches in the feet of the matrices and is adjustable by the magazine column into either of two operating pcsitions. The movable bridge 8, which in the form described has two rails or ridges 30 to engage the feet of the matrices as they leave the distributor-box, is carried by a. sliding rod 128 operated by a lever 140 and a link 139 from a cam 146 on the magazine column. The cam is so arranged that the bridge occupies one position when the magazines 1, 2 or 3, 4 are in use, and the other position for the magazines 2, 3. The matrices have notches 29, Fig. 3, to co-operate with the ridges 30, those matrices which fit the ridges falling down a shoot 7 and being delivered by the distributor 6 to the upper magazine of the pair in use. Matrices which do not fit the ridges 30 are supported at a higher level and are delivered by the distributor 5 to the lower magazine of the pair. The matrices are in two sets having notches 29 at the same distance apart but differently located to correspond with the two positions of the bridge. The matrices of one set are stored in alternate magazines of the column, and those of the other set in the remaining magazines.
Patent GB-418019-A (GB)
Title: Improved means for cleansing surgical tubes such as catheters
IPC: A61M25/00
Filed: 1933-06-09
Abstract: 418,019. Cleaning surgical tubes. HELLYER, R. H., 35, Red Lion Square, London. June 9, 1933, No. 16674. [Class 99 (ii).] A surgical tube such as a catheter is cleaned in apparatus comprising a container 1 having a cleaning water &c. inlet 3 and outlet 19, the end 8<a> of the catheter 8 being secured in a holder 6, rotatably mounted within the container on an extension 5 of the inlet 3 and formed with a central passage having grooves 7<a>, which directs water both through the interior and around the exterior of the catheter. The container 1, extension 5, and holder 6 are formed with openings 9, 12, 13 respectively for passage of the catheter, the opening 9 being provided with a sliding door 10 which is connected to the holder 6 in such a manner that an opening movement of the door brings the openings 12, 13 into register and vice versa. The water supply is controlled by a valve, provided with a spout 4<a>, and after cleaning the catheter with water a further cleansing may be effected with methylated spirit &c. supplied to the container 1 from a vessel 14 by a spout 15 which passes through the valve spout 4<a> and projects into the container inlet 3. The outlet 19 of the container is fitted with a perforated guard 20 to prevent the catheter entering the drain should it become accidentally dislodged.
Patent GB-255800-A (GB)
Title: Improvements in apparatus for fitting footwear
IPC: A43D1/02
Filed: 1926-07-02
Abstract: 255,800. Bliss, E. J. July 2, 1926. Boots and shoes, measuring and fitting for. - Shoe fitting apparatus comprises a platform 1, Fig. 1, provided with a seat 2, and foot measuring apparatus 4, movable from inoperative position beneath said seat to service position forwards to permit a person to stand on the measuring device with both feet expanded. The measuring devices are of the type described in Specification 198,265. With the measuring devices is a movable board 7 which remains after the measuring means are retracted, affording an unsoiled support for the stockinged feet or for new shoes. Inside the platform, Fig. 3, are parallel arms 30 supporting the measuring devices 4 and fulcrumed at the lower end to a fixed frame 11. They are moved forward into position by a link 31 and bell-crank motion 32 projecting outside the platform, Fig. 7. A retractable forward foot rest 8, Fig. 1, is provided mounted on an arm 9 pivoted at 10, Fig. 3, and operated by levers 15, 14<a>, 14 connected to a treadle 12, which can be locked in position in an offset slot 17<b>, Fig. 7. The movable parts can be held retracted by springs 50, Fig. 3, and steadied in movement by dash-pots 34 &c. A movable platform 7 has projections 70 engaging slots in the platform 1, and as the measuring devices are slid forwards, the platform 7 accompanies them, but on retraction of the measuring devices the platform remains as a foot support.
Patent GB-186133-A (GB)
Title: Improvements in or relating to the preservation and preparation for transportation of oil-bearing raw material, such as nuts, seeds and copra
IPC: B30B9/30
Filed: 1921-06-17
Abstract: 186,133. McIlwaine, A. W. June 17, 1921. Baling-presses; packing nuts, seeds, copra, &c. -Oil-bearing material, such as rubber nuts, walnuts, cohune nuts, kapok seeds or copra are preserved by compressing into a compact mass under a pressure insufficient to express any material quantity of oil, the process being the same as that described in Specification 187,257 in connection with monkey nuts and in Specification 186,277 in connection with cotton seeds. The materials may be compressed between a pressure-head 3 and a hydraulic plunger 2 in a chamber 5 running on rails 6 and provided with a movable bottom 10, a hinged front 8 and a hinged door 7. Sheets of jute, &c. may be placed above and below the materials before compression and bound round the compressed block by wires, cords or hooping.
Patent GB-666295-A (GB)
Title: Improvements relating to scrapers for sewage or other sedimentation tanks
IPC: B01D21/18
Filed: 1949-06-24
Abstract: 666,295. Treating sewage. FARRER, Ltd., W. E., and ROOKE, G. M. June 2,1950 [June 24, 1949], No. 16801/49. Class 111 Scrapers for a sedimentation tank are disposed so that (as viewed in plan) they lie along a substantially spiral line and are suspended from a rotary arm by stems attached to the arm by anchorages, the anchorages also lying along a spiral line. Scrapers c, Fig. 1, are each attached at their centres to stems b which are in turn attached to a scraper arm a by anchorages g, Fig. 2, which lie on a spiral line corresponding to that of the scrapers. The inner end of the spiral formed by the scrapers is disposed tangentially to a well f, the scraper adjacent to the well being preferably curved. The stems b are suitably articulated to allow each scraper to accommodate itself to and ride over obstructions on the base d. The adjacent ends of the scrapers may lie close together instead of overlapping slightly as shown. According to the Provisional Specification the stems b make equal angles with the scrapers c as viewed in plan.
Patent GB-266976-A (GB)
Title: Improvements in synchronised asynchronous electric motors
IPC: H02K17/26
Filed: 1926-07-05
Abstract: 266,976. Rezelman, J. July 5, 1926. Alternating-current motors; cores. - In an asynchronous motor which is adapted for synchronous running by supplying continuouscurrent to one phase 1, Fig. 1, of its rotor coils in series with the two other phases 2, 3 in parallel, the rotor is provided with enlarged slots 1, Fig. 2, for the conductors of the phase 1, these conductors having a larger cross-section than the conductors of the other two phases: The slots for phases 2 and 3 are of smaller cross-section. The invention may be applied to the stator instead of to the rotor coils.
Patent GB-292772-A (GB)
Title: Improvements in double-acting internal combustion engines
IPC: F02B75/22
Filed: 1927-06-24
Abstract: 292,772. Kemp, J. R. June 24, 1927. Driving-gear.-Two doubleacting pistons E drive on to one crank pin B through piston rods F, cross-heads J, links H and rod M, an extension L on the latter being connected to a radius arm 0. The combustion chambers are independent and a number of pairs of cylinders may be used. If one cylinder of a pair is out of use the other cylinder may be effective, the piston of the former being disconnected from the rod M.
Patent GB-530692-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/42
Filed: 1939-06-08
Abstract: 530,692. Windscreen wipers. O'SHEI, W. E. June 8, 1939, No. 16847. [Class 138 (i)] A spring &c. is arranged between the blade and oscillating arm so as to press the inner end of the blade against the screen. As shown, a spring 9 is secured to the free end of the upper arm 4 by a clenched channel member 6, and the other end of the spring rides in a sleeve formed in a channel member 10 secured to the back of the blade. The spring may be replaced by a block of rubber, and may engage the outer end of the blade. Specification 512,138 is referred to.
Patent GB-767096-A (GB)
Title: Improvements in or relating to devices for taking samples
Inventor: GUIDER WALTER
IPC: G01N1/20
Filed: 1953-06-18
Abstract: 767.096. Sampling granular material. COAL INDUSTRY (PATENTS), Ltd. June 1, 1954 [June 18, 1953], No. 16876/53. Class 58. Apparatus for sampling granular material, e.g. grain, sugar, metallic ores and coal, has a supply hopper 22 with an aperture 22a from which material falls into a sampling tube 14 through a gap or gaps in a continuously rotating, e.g. conical or frusto-conical, rotor 21, which deflects material away from the tube 14 into a funnel 12 during part of each rotation. The rotor may have two overlapping gapped parts 21a and 21b, which are relatively adjustable about the axis of rotation 19 to vary the size of the effective gap or gaps through the rotor. Each part may have two diametrically opposed gaps each subtending an angle of 90 degrees at the axis 19. The rotor may be driven by an electric motor 15 through gearing 18.
Patent GB-534569-A (GB)
Title: Improvements in or relating to valve gear for fluid pressure engines such as locomotive engines
IPC: F01L31/16
Filed: 1939-06-09
Abstract: 534,569. Engine valve gear. WOODWARD, W. E. June 9, 1939, No. 16965. [Class 122 (ii)] In a valve gear for a reciprocating engine, particularly a locomotive engine having two cylinders each provided with separate admission and exhaust poppet valves, the valves, of each cylinder are actuated by connections from two arms of different length of an oscillating lever whose movement is compounded of a movement received from the crosshead of its own cylinder and a movement received from the radius rod of a link motion actuated by the crosshead of the other cylinder, the effective leng'th of the arm actuating the exhaust valve being automatically varied as the radius rod is adjusted by the reversing lever so that the timing of release and compression is suitably released to the time of cut off. The gear box 70, Figs. 4 and 9, supports rock shafts 76R', 76L' operated respectively by connections from the crossheads of the right hand and left hand cylinders and carrying yokes 83R, 83L to which are pivoted levers having pairs of arms 104R, 105R and 104L, 103L connected respectively by links 106R, 112R, 106L, 112L to rock shafts operating the cams controlling the movements of the exhaust and admission valves of the right and left hand cylinders. The arm 104R of the right hand cylinder is connected by a radius rod 15R to a roller 19R, mounted on roller bearings and engaging in a link 86R rocked on its trunnions 88R by connections from an arm 92L on the yoke 83L actuated by the left hand engine, and, similarly the arm 104L is connected to a link rocked from the arm 92R on the yoke 83R. The movements of the arms 104R, 105R, 104L, 105L are thus compounded of a movement of their carrying yoke and a movement of this link. The adjustment of the radius rods to vary the throw of the arms 104R, 104L and thus alter the time of cut off, is effected by connections to a reversing shaft 80' actuated by an arm 79 from the reversing lever in the cab of the locomotive. At the same time the point of connection of the exhaust valve actuating link 112R, 112L to its arm 105R, 105L is automatically adjusted to suitably relate the other valve events to the change of cut off. This is effected by the following mechanism, referring to the right hand cylinder. The shaft 80' is provided with a gear segment which through gear mechanism 134R, 137R, 138R rocks a shaft 139R connected by a universal ball joint to a spindle 142R mounted in the yoke 83R and carrying a crank disc 144R connected by rod 146R to a block 149R slidable in a guide in the yoke and connected by a rod 153R to the pivot pin 113R which connects the link 112R and arm 105R and is slidable in a set slot 131R in the arm. Thus as the reversing lever moves from full forward position to neutral position, the effective length of the arm 105R is shortened and as the reversing lever moves over from neutral position to full reverse position, the effective length of the arm is again lengthened. Specifications 487,686 and 504,056 are referred to.
Patent GB-779385-A (GB)
Title: Improvements in and relating to fuel injection apparatus
IPC: F02M59/00
Filed: 1955-06-13
Abstract: 779,385. Spray carburetters; arrangement of distributers. ABBEY, A. (American Bosch Arma Corporation). June 13, 1955, No. 16971/55. Classes 7 (3) and 7 (4). [Also in Groups XXVI and XXVIII] The fuel injectors 12 of a spark ignition engine are supplied by a combined pump and rotary distributer 14 which is combined with the ignition distributer 20 and driven from its shaft. The pump is controlled by a suction governor 16 which may be connected by linkage 17 to the pump or formed integrally therewith. The suction governor (see Group XXVI) includes a full fuel starting device which comprises a solenoid energized by the engine starter which actuates a valve to disconnect the suction line of the governor from the inlet manifold below the butterfly valve and to connect it to the manifold above the butterfly valve. A bimetallic spring retains the valve in this position when the starter is released and slowly returns the valve to its original position.
Patent GB-586669-A (GB)
Title: Improvements in or relating to coating compositions for the prevention of corrosion
IPC: C10L1/16
Filed: 1943-10-15
Abstract: Corrosion-preventive compositions for applying to the surface of easily-corrodible metals comprise a mixture of 2-10 per cent. of a water-insoluble soap of a fatty acid, 1-7 per cent. of an alkali metal salt of a mineral oil sulphonic acid, 1-7 per cent. of degras (woolfat) and 70-90 per cent. of a petroleum distillate fraction, the soap being prepared in situ by adding the fatty acid to the other ingredients and then saponifying it by adding a metallic hydroxide or hydrated metallic oxide.  Other materials such as stabilizers like phenyl alpha naphthylamine or phenol ethers, or dyes or other colour bodies to give distinctive colour may be included in the compositions if desired.  The soap may be the lithium, barium, magnesium or calcium soap of oleic acid, stearic acid or the acids derived from hydrogenated fish oil while the petroleum distillate fraction may be a naphtha, lubricating oil or petroleum; though coal tar solvents as well as other hydrocarbon and chlorinated hydrocarbon solvents of the desired volatility and solubility characteristics may also be added if desired.  In examples, (1) a slurry of hydrated calcium oxide in volatile mineral spirit is added to a mixture of oleic acid, petrolatum, sodium salts of mineral oil sulphonic acids and degras, (2) a paste comprising hydrated calcium oxide, mineral lubricating oil, petrolatum, degras and sodium salts of mineral oil sulphonic acids is added to a mixture of oleic acid, petrolatum, mineral lubricating oil, sodium salts of mineral oil sulphonic acids and degras and (3) hydrated calcium oxide is added to a mixture of degras, mineral lubricating oil, sodium salts of mineral oil sulphonic acids and hydrogenated fish oil acids and the composition is diluted with Stoddard's solvent.  The properties of the compositions of the examples are compared with compositions containing (a) mineral lubricating oil, sodium salts of mineral oil sulphonic acids, degras and petrolatum, (b) mineral lubricating oil and degras, (c) a mixture of (b) and calcium oleate, (d) Stoddard's solvent, degras, mineral lubricating oil and sodium salts of mineral oil sulphonic acids and (e) a mixture of (d) and lithium soaps of hydrogenated fish oil acids.
Patent GB-571008-A (GB)
Title: An improved electric conductor for overhead suspension
IPC: H01B5/06
Filed: 1943-10-15
Abstract: 571,008. Electric conductors. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., HUNTER, P. V., and BOYSE, C. O. Oct. 15, 1943, Nos. 16978/43 and 11906/44. [Class 36] A high-voltage conductor capable of being coiled on a drum consists of a smooth hollow cylinder 1 with a narrow helical gap 2 in its wall. To resist collapse, the conductor may have an internal support comprising a beam 3, Fig. 2, of I- or Z-section, preferably twisted to a a helical form oppositely to the gap 2. The flanges 4 may have curved ends. In a modification, Fig. 3, one edge of the gap 2 has parts 5, 6 forming an undercut recess to receive the inwardly-projecting part 7 of the other edge ; these members being normally spaced apart a short distance. According to the second Provisional Specification, the cylinder may be filled or nearly filled with a solid or stranded wire with or without one or more intermediate helically divided cylinders.