baber/WOPTO huggingface dataset:
Patent GB-1147284-A (GB)
Title: Disentrainment of coal particles in pneumatically charged coke ovens
IPC: C10B31/00
Filed: 1967-05-26
Abstract: 1,147,284. Charging coke ovens. ALLIED CHEMICAL CORP. 26 May, 1967 [2 June 1966], No. 24714/67. Heading F4B. During the charging of a coking chamber 12 in a coke oven battery with fluidized coal from a line 13, the carrier gas plus coal dust leaves by an opening 15 remote from line 13 and is transferred by pipe 16 under control of valve 24 to an adjacent chamber 17 where the coking process is advanced. Other connecting pipes 19, 27 and 32 are provided and all have cleaning doors 37, 38, each chamber also having an offtake 25, 31 or 34 to a gas main. If the dust content is heavy the carrier gas may be passed into several chambers in turn. About 20-95% of the carrier gas, e.g. steam or coal gas may be bled off through line 14, and the coal may be preheated to 350-650 F. The gas stream passes over 50-90% of the length of a coking chamber.
Patent GB-155072-A (GB)
Title: Improvements in fireproof flooring or the like
IPC: E04B5/29
Filed: 1919-10-10
Abstract: 155,072. McDowall, T. R. Oct. 10, 1919. Reinforced blockwork floors; joist floors with block filling. - Hollow fireproof flooring- blocks, which are supported between or on joists by tierods, are provided with improved interlocking - means comprising semicircular tongues and grooves 10, 11. The reinforcing tierods, which are at right-angles to the supporting tie-rods, may be in the form of flat strips engaging registering slots 16a in the blocks. The tie-rods are secured to angle-irons secured to the girders or to hangers which span the girders on opposite sides, or to separate hangers 21, Fig. 6, connected to a slotted plate 22.
Patent GB-533379-A (GB)
Title: Treatment of titanium ores
IPC: C22B34/12
Filed: 1939-08-29
Abstract: 533,379. Treatment of titanium ores. CLEVELAND. F. J. (Pittsburgh Plate Glass Co.). Aug, 29, 1939, No. 24808. [Class 1 (iii)] Iron is removed from iron-titanium ores, e.g. ilmenite by heating an intimate mixture of ore and carbon to above 500‹C. in a stream of chlorine and oxidizing gas, the amount of carbon being sufficient to cause volatilization of a substantial amount of iron chloride without material loss of titanium which remains as oxide. The proportion of carbon may be from 1 to 20 per cent. of the ore and is preferably from 3 to 16 per cent. The ore is ground and mixed with oily, bituminous, or other carbonaceous matters and may be briquetted. Some iron may be removed by preliminary roasting in a chlorine atmosphere. The titanium dioxide may be converted into the chloride by further chlorination with excess of carbon. The process may be carried out in various types of furnace but a shaft furnace is preferred. Specification 533,378 is referred to.
Patent GB-966425-A (GB)
Title: Circuit for operating electric discharge lamps
Inventor: CATES JULIUS
IPC: H05B41/232
Filed: 1962-06-28
Abstract: 966,425. Supply systems for discharge lamps. GENERAL ELECTRIC CO. Ltd. June 25, 1963 [June 28, 1962], No. 24862/62. Heading H2H. To reduce the size of an auto-connected strayfield transformer which supplies a discharge lamp 3, a power factor correction capacitor 8 is connected across the primary winding 6 and part of the secondary winding 7, the position of the tapping on this winding being found by experiment. In the circuit of Fig. 1, the voltages across windings 6, 7 are approximately equal when members 3, 8 are not connected, and the capacitor value and the tapping point are chosen so that when capacitor 8 is connected the overall open-circuit voltage across the windings 6, 7 is increased by about a quarter of the voltage across either winding to a value about twice the supply voltage. To produce an open circuit voltage lower or greater than that of the circuit of Fig. 1, the end of winding 7 is connected to a tapping on winding 6, Fig. 2 (not shown) or supply terminal 2 is connected to a tapping on winding 6, Fig. 3 (not shown), equality of winding voltage in the case of the former modification being determined for the winding 7 and that part of the winding 6 in the secondary (lamp) circuit. Heating windings may be provided at the ends of windings 6, 7 should the lamp have heatable electrodes, Fig. 4 (not shown). Typical design values are given for the stray-field transformer which may supply two or more series-connected lamps.
Patent GB-842933-A (GB)
Title: Process for stabilisation of compounds containing dihalogeno-ú¾-triazine groups, andthe compositions so obtained
Inventor: HORROBIN SYDNEY
IPC: C09B/
Filed: 1957-08-07
Abstract: The invention comprises compositions of compounds containing at least one 4:6-dihalo-s-triazine group and a buffer mixture of the free acid and a metal salt of an arylamine sulphonic acid, each amino group in the acid being of formula:  <FORM:0842933/IV(b)/1> wherein the R groups may be the same or different and each stands for an alkyl, cyloalkyl or aralkyl group, which may be substituted, containing at least two carbon atoms, which buffer mixture maintains in aqueous solution a pH of 3 to 7.  Specified compounds include 2-(m-sulphoanilino)-4:6-dichloro-s-triazine and the reaction products of cyanuric halides with alkylamines, alkanolamines, arylamines, arylamine sulphonic acids, aminonaphthol sulphonic acids, alkanols, phenols and mercaptans. Specified arylamine sulphonic acids include N:N-di-n-hexylaniline-m-sulphonic, 2-N:N-diethylamino-naphthalene-6-sulphonic, 2-(N-ethyl-N-benzylamino)-toluene-4-sulphonic, 2-(N-ethyl -N-phenylamino)-ethane sulphonic, p N-ethyl-N-cyclohexylaniline-sulphonic and 4:4-bis(diethylamino)diphenyl-2:2-disulphonic acids.  Preferred acids are N:N-diethyl-metanilic or -sulphanilic.  The compositions are less affected by hydrolysis with loss of halogen than the unbuffered compounds.  N-ethyl - N - phenylbenzylamine monosulphonic acid is prepared by sulphonating N-ethyl-N-phenylbenzylamine.  Potassium 2-N:N-diethylaminonaphthalene-6-sulphonates is prepared by treating 2-naphthylamine-6-sulphonate with diethyl sulphate.ALSO:The invention comprises dyestuff compositions wherein one or more dyestuffs containing at least one 4 : 6 -dihalo-s-triazine group are mixed with a buffer mixture of the free acid and a metal salt of an arylamine sulphonic acid, each amino group in the acid being of formula: <FORM:0842933/IV (c)/1> wherein the R groups may be the same or different and each stands for an alkyl, aralkyl or cycloalkyl group, which may be substituted, containing at least two carbon atoms, which buffer mixture maintains in aqueous solution a pH of 3 to 7. Specified dyestuffs are azo, metallized azo, anthraquinone, phthalocyanine and nitro dyestuffs containing 4 : 6-dihalo-s-triazine groups. Specified arylamine sulphonic acids include N : N-di-n-hexylaniline-m-sulphonic acid, 2-N : N-diethyl-aminonaphthalene -6- sulphonic acid, 2-(N-ethyl -N- benzylamino)-toluene -4-sulphonic acid, 2-(N-ethyl -N- phenylamino) ethane-sulphonic acid, N-ethyl -N- cyclohexylaniline-sulphonic acid and 4 : 41-bis (diethylamino) diphenyl -2 : 21- disulphonic acid. Preferred acids are N : N-diethyl-metanilic or -sulphanilic. The dyestuff compositions are less affected by hydrolysis with loss of halogen than the unbuffered dyestuffs.  Specifications 209,723, 298,494, 467,815, 624,054, 781,930, 785,120, 805,562, 838,338 and 838,340 are referred to.
Patent GB-171799-A (GB)
Title: A self-adjusting lawn mower
IPC: A01D34/42
Filed: 1920-08-30
Abstract: 171,799. Poyser, G. W. Aug. 30, 1920. Lawn-mowers.-In lawn-mowers in which the spindle c of the rotary cutter is mounted in pivoted brackets h, the cutter is made self-adjusting by means of discs or their equivalents b secured on the ends of the spindle c and held in yielding contact with the ledger blade f by springs e pressing on the brackets. The discs may run on rollers on the blade f or other part. Specification 133,637 is referred to.
Patent GB-1520867-A (GB)
Title: Separation of aromatic hydrocarbons from mixtures using polyurethane membranes
IPC: C07C1/00
Filed: 1977-06-15
Abstract: 1520867 Separating aromatic hydrocarbons from mixtures BAYER AG 15 June 1977 [19 June 1976] 25017/77 Heading C5E Benzene or aromatic hydrocarbons containing up to 3 C 1 -C 3  alkyl substituents are separated from a mixture with aliphatic or cycloaliphatic hydrocarbons, alcohols, ethers, ketones or carboxylic acid esters by contact with a polyurethane membrane. The separation may be carried out at 0-100 C. using a membrane of thickness 0À5-500 Á.
Patent GB-1489155-A (GB)
Title: Twin belt cooling system
IPC: F25D25/04
Filed: 1975-06-11
Abstract: 1489155 Cooling apparatus SANDCO Ltd 11 June 1975 [12 June 1974] 25023/75 Headings F4U and F4H In apparatus for cooling material between superposed impervious endless bands 1, 3 a liquid coolant is forced into contact with the inner face of at least one band in a space 9 bounded by side walls 10, a cover 11 and the belt run itself. In a first embodiment the liquid passes through an inlet 12 and outlets 13 which may be connected to a common heat exchanger 15 and pump 16 for spaces 9 adjacent both belts. In a second form, the spaces comprise open top containers, Figs. 3 and 4, adjacent the upper conveyer belt and the water passes from one container to an adjacent, lower container by an overflow and pump system. The conveyers in this embodiment are inclined.
Patent GB-1341634-A (GB)
Title: Heater device for heating a specimen
IPC: G01N23/20
Filed: 1971-04-19
Abstract: 1341634 Resistance heating elements NIHON DENSHI KK 19 April 1971 [24 March 1970] 25084/71 Headings H5H and H5R A heater device incorporated in X-ray diffraction apparatus for heating a specimen is formed by a heater ribbon 9 through which heating current is passed, and which has a recess 13 cut into its surface for housing the specimen, the recess dimensions relative to those of the ribbon satisfying the conditions and where a is the thickness of the ribbon, b is the depth of the recess, c is the width of the ribbon, and d is the width of the recess, whereby variation of temperature over the specimen surface is reduced compared with the case of an unrecessed ribbon. Further improvement in the uniformity of the temperature distribution may be obtained by forming the recess with a convex bottom surface (Figs. 5 and 6, not shown), in which case the value of b employed in the above formula is that which applies at the edge of the recess. Ribbon portions 10a and 10b prevent distortion due to thermal expansion. The specimen heater may be mounted within an airtight casing (3), provided with a pair of windows (5a, 5b), on the goniometer head (4) of the X-ray diffraction apparatus (Fig. 1, not shown).
Patent GB-1188387-A (GB)
Title: Preparation of Resorcinol
Inventor: KIRBY EDWARD CAMERON
IPC: C07C37/07
Filed: 1967-05-31
Abstract: 1,188,387. Preparation of resorcinol and substituted resorcinol. BRITISH OXYGEN CO. Ltd. 24 May, 1968 [31 May, 1967], No. 25141/67. Heading C2C. Resorcinol is prepared by the dehydrogenation of cyclohexane 1,3-dione in the presence of a catalyst which may be iodine, 5% palladium on charcoal or 5% palladium on calcium carbonate, at a temperature ranging from 150‹ to 300‹ C.
Patent GB-760016-A (GB)
Title: Improvements in or relating to electroplating
Inventor: TAIT WILLIAM HENRY
IPC: C25D17/14
Filed: 1953-09-11
Abstract: 760,016. Electrodeposition of metals. GLACIER METAL CO., Ltd. Sept. 10, 1954 [Sept. 11, 1953], No. 25176/53. Class 41. Apparatus for electrodepositing metals on conducting surfaces comprises a pad 5, Fig. 1, of non-conducting material, interposed between an anode and the surface as cathode, means for maintaining the pad constantly wet with electrolyte, and means for moving the pad relatively to, and in rubbing contact with, both the anode and cathode. When the surface to be plated is a continuous strip 4, Fig. 1, it may be passed over the pad 5, against the underside of which is pressed the anode 7 by spring-loaded plungers 6, the pad being given a slight circular motion in its plane by means of rotating cams engaging links connected to a frame about which cloth is wrapped. A pump P delivers electrolyte to the pad 5, from where it falls into a tank 3. Alternatively, an endless belt may carry the pad through a bath of electrolyte and pass between the anode and cathode, of which the latter at least moves at right angles to the belt. In another embodiment the belt and cathode move in parallel, opposite directions, the belt moving between the strip cathode and stationary or moving anodes, electrolyte being picked up by the belt in passing through a bath, and/or being delivered thereto through spaces between the anodes. For plating an article 16, Fig. 6, the pad 5 may comprise cloth 11 mounted on two perforated discs 14a, 14b rotatable about a hollow shaft 15 through which electrolyte is delivered to the pad. Alternatively, a single perforated disc, covered with cloth, and dipping in a tank of electrolyte, may be used. For plating shaped articles, e.g. a half-liner 19, Fig. 7, an endless belt 20 of sponge rubber is passed by a driven drum 21 in a tank 3 of electrolyte between the anode 7 and cathode 19.
Patent GB-338583-A (GB)
Title: Improvements in or relating to rock-splitting apparatus
IPC: E21C37/04
Filed: 1929-08-17
Abstract: 338,583. Beck, L. T. Aug. 17, 1929. Breaking-down appliances.- A rock-splitting tool comprises a tubular casing for insertion in a bore-hole and provided with one or more sets of slots arranged around its circumference, a wedge block arranged in each slot and adapted to have at least line contact with the wall of the bore-hole, and wedgemeans operable on each wedge block, the rock being split by outward movement alone of the wedge-blocks. In Fig. 1, a tubular casing 10 has alternate sets of diametrically-opposed slots 12 each subtending an angle of 90‹, and intermediate sets each of four slots 13 each subtending an angle of 45‹, the latter slots being bisected by axial planes passing through the ends of the first slots 12; wedges 14 are fitted in the slots and are engaged by tapered plugs 17 integral with, or held between, ball-bearings or locknuts &c. on, a central rod 15. The rod 15 has threaded parts 16 in engagement with the casing 10 so that on rotation of the rod, as by worm-gearing 23, 24, or a rotatable head-stock and bevel gearing, the plugs 17 are moved longitudinally to act on the wedges 14; the plugs 17 or wedges 14 have corrugated surfaces so as to give line contact. The innermost threaded parts 16 may be adjacent the left-hand end of the casing 10. Lubricant supplied through an opening 26 passes through ducts 25, 20 to the surface of the plugs 17. Instead of the threaded parts 16, longitudinal movement of the rod 15 may be effected by blows delivered by hand or by steam &c. hammer. In Fig. 2, wedges 140 and taper plugs 170 have engaging faces of a uniform curvature, or they may be corrugated, and oil, gas &c. under pressure is admitted through ducts 200 to force adjacent plugs 170 apart and so operate the wedges. A valve 100 controls communication between the ducts 200 and supply and exhaust pipes 101, 102. Separate ducts may be provided so that the plugs may be operated consecutively or any one at will. In Figs. 3 and 4, the tapered plugs 170 are initially operated by admitting pressure fluid between the end of the rod 15, or a shoulder 151 thereon, and the inner face of each plug, and by moving the rod 15 longitudinally by admitting fluid to act on a head 152 thereon; the operation is completed by delivering blows on the head 54. The rod 15 is returned by a spring 149 and by fluid acting on a head 154. A valve 51 is adapted to connect ports 49, 56 to a fluid supply 53 to effect operation of the plugs 170 and rod 15; in another position of the valve, ports 49, 56 are connected to exhaust and ports 57, 59 are open to the supply 53, fluid then passing through port 57 to effect return of the rod 15 and through ports 59, 60 to act on pistons 61 and, through cross-head 62 and rods 63 with lugs 64, return the taper plugs 170. The wedges 140 may be withdrawn by springs. Further, the rod 15 may have enlargements fitting the outer casing, the pressure fluid acting between these enlargements and the plugs 170. Specification 224,187 is referred to.
Patent GB-719006-A (GB)
Title: Improvements in or relating to typographical composing and slug casting machines
IPC: B41B11/88
Filed: 1952-10-08
Abstract: 719,006. Type-bar-making machines. MERGENTHALER LINOTYPE CO. Oct. 8, 1952 [Oct. 23, 1951], No. 25213/52. Class 100 (3). Driving-mechanism; metalpumps; distributing matrices. In a typographical line-casting machine, a main camshaft for controlling the various machine operations in timed sequence is driven through a clutch, and the disengagement of the clutch is effected by automatic safety means controlled by the failure, of the casting mechanism to function through non-operation of the pump. The safety means comprises a stop 35 pivoted at 35a to a bracket 36 attached to the machine frame F and normally in the path of the second-elevator-supporting lever so as to prevent the complete descent of the second elevator and thereby cause the clutch to be disengaged. On casting, the pump-actuating lever rocks a lever 37 also pivoted at 35a, which through an adjustable screw 38 rocks the'stop 35 out of the path of the lever 29. A catch member 39 pivoted to the stop 35 is urged counter-clockwise by a spring 41 anchored to the bracket 36, which spring also holds the stop 35 in its operative position. The spring 41 causes a pin 42 on the catch 39 to be kept in contact with the top edge of the bracket 36. When the lever 13 rocks the stop 35, a hook 39a on the lever 39 engages behind the upper edge of the side of the bracket 36 to hold the stop 35 in its inoperative position. When the second elevator reaches its lowermost position, the lever 29 engages an adjustable screw 40 on the catch 39 and releases the hook 39a, whereupon the spring 41 moves the stop 35 against the side of the lever 29, and returns it completely to its operative position when the elevator is again raised.
Patent GB-502484-A (GB)
Title: Improvements relating to motor vehicle lamps
IPC: B60Q1/14
Filed: 1937-09-17
Abstract: 502,484. Mounting reflectors in vehicle lamp casings. LUCAS, Ltd., J., and NEILL, R. L. Sept. 17, 1937, No. 25256. [Class 75 (ii)] In a vehicle lamp in which the reflector a is pivotally mounted so that the light can be dipped, a deformable or otherwise laterally movable member h, or h<1>, h<2>, acts as a strut to secure the reflector rigidly in its normal position in the lamp body, but is put out of action as a strut when the dipping means are actuated. In Fig. 1, the reflector is pivoted at b, and the strut h is an incompressible spiral spring attached at one end to a fixed part i of the lamp and at the other end to a bracket on the reflector. The plunger g of a solenoid f when actuated operates a lever k which pivots on a bracket m carried by the reflector, and causes the spring to be deformed laterally. The reflector a can then tilt under the further action of the plunger g. When the solenoid is deenergized, the spring h and, if desired, an auxiliary spring, return the reflector to its normal position. The spring h may be replaced by a thin steel or other resilient metal strip of concavo-convex section. In Fig. 3, the spring h is replaced by at pair of links h<1>, h<2> pivoted together and to the brackets i,j and acted upon by the spring o. In another form, the links are arranged to be movable in a plane at rightangles to their broader surfaces and are acted upon by a helical spring coiled around the pivot on the bracket i In other forms, the strut is a chain flexible in one direction only and resistant to end thrust when straight, and the strut is a rigid member pivoted at one end to either the lamp body or the reflector and engaging a shoulder on the other of these parts at its free end. The lever moves this strut, against the action of a spring, out of engagement with the shoulder when the reflector is to be tilted.
Patent GB-252659-A (GB)
Abstract: 252,659. Compagnie Nationale des Radiateurs. May 28, 1925, [Convention date]. Cooking-ranges; grates; boilers, arrangement of.-A fuel holder for insertion in a combined kitchen range and boiler when it is desired that the latter should not be heated comprises a top plate with a depending heat-insulating double wall 2 between the fire. and boiler, air entering and leaving the hollow wall through apertures 8, 9 respectively and passing to the grate, the normal air inlet beneath which is closed. The top plate is circular to fit in the usual opening in the hotplate, and receives the usual utensil-supporting rings 3. The bottom is formed by the verticallymovable grate 5, or by a grate attached to or forming part of the fuel-holder.
Patent GB-262394-A (GB)
Title: Process for producing porous concrete
IPC: C04B28/02
Filed: 1926-10-11
Abstract: 262,394. Lindman, E. I. Dec. 5, 1925, [Convention date]. Porous cement.-A porous clay clinker is used as an aggregate in concretes of the type which are rendered porous by the injection or generation of gas within them. One kind of clinker is produced by heating the clay to a temperature just above the sintering point and interrupting the heating before the material commences to shrink. Another kind of clinker is obtained by heating the material at increasing temperatures until it melts to a viscous mass.
Patent GB-296695-A (GB)
Title: Chemical product for plating metal and alloys
IPC: C25D3/46
Filed: 1928-09-03
Abstract: 296,695. Granier, L. J. V. Sept. 2, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Silvering.-Relates to the silvering, in the co1d and without the use of poisonous compounds, of metals and alloys other than aluminium and certain antimony a11oys. Silver chloride is precipitated from a solution of silver nitrate with salt, the precipitate is washed, and dissolved in sodium thiosu1phate solution, and sodium bisulphite so1ution and whiting added. The article to be si1vered is wiped with a pad moistened with the product.
Patent GB-1275592-A (GB)
Title: Thyristor forced-cummutation circuit
IPC: H02M1/06
Filed: 1969-05-19
Abstract: 1275592 Thyrixtor commutating circuits BROWN BOVERI & CO Ltd 19 May 1969 [21 May 1968] 25409/69 Heading H3T In a commutating circuit for a thyristor 1 comprising a capacitor 5, discharged through the thyristor 1 under control of a switching device 2, an auto-transformer 7 is included so that the load is not subjected to the full voltage of capacitor 5. A ringing circuit 5, 3, 6 is included for recharging capacitor 5. In Fig. 1b (not shown) the re-charging circuits comprises an inductor and further thyristor connected across capacitor 5.
Patent GB-1039240-A (GB)
Title: Iodo-substituted benzaldehydes and process for preparing them
IPC: C07C45/63
Filed: 1964-06-19
Abstract: New compounds of formula <FORM:1039240/C2/1> where R1, R2 and R3 each represent hydrogen or iodine are prepared by (1) treating corresponding compounds where R2 and R3 are both hydrogen with iodizing agents, or (2) reducing by catalytic hydrogenation compounds <FORM:1039240/C2/2> where X is alkylene containing 2 or 3 C, to amino compounds, converting these with nitrous acid to diazonium compounds, iodizing these to form 4 - (41 - hydroxy - phenoxy) - 3,5 - diiodobenzaldehyd acetals, and splitting off the acetal group with mineral acid.  Compounds II are prepared by reacting 4-(41-benzoyloxy - phenoxy) - 3 - iodo - 5 - nitrobenzaldehyde with glycols to form the acetals and hydrolysing the benzoyl group.  Pharmaceutical compositions comprise compounds I with carriers. The compounds have coronaro-dilatory activity.