baber/WOPTO huggingface dataset:
Patent GB-617070-A (GB)
Title: Improvements in or relating to display devices
IPC: G09F13/00
Filed: 1945-09-06
Abstract: 617,070. Changing signs. STEVENS, A. H. (Burchell-Holloway Corporation). Sept. 6, 1945, No. 22968. [Class 3(i)] [Also in Group XX] A sign in which the display has changing colours and apparent motion produces the required effects by means of polarized light. Fig. 2 shows in plan a form in which a cylinder 10 of homogeneous polarizing material is mounted to rotate about an elongated vertical lamp 11 by convection current or other means. Attached to the cylinder 10 is a surrounding cylinder 12a of corrugated form made of birefringent material. Outside the cylinders 10 and 12a, and preferably coaxial therewith, is a stationary sheet 18, of isotropic material, carrying the design in the form of superposed layers 19, 20, 21 of birefringent material. The sheet 18 is enclosed by a sheet 22 of polarizing material forming an analyzer, the polarizing axis of which may be at any angle to that of the cylinder 10. Fig. 3 shows a modification in which light from a lamp 11<1> passes first through a sheet 24 of translucent isotropic material, then through a stationary sheet 25 of polarizing material, and a sheet 26 of isotropic material carrying layers 27, 28 of birefringent material forming the design. A flat corrugated sheet 29 of birefringent material is reciprocated, as shown by the arrows, to produce the requisite changing effect, and is fronted by a plane analyser sheet 30. Alternatively, the sheet 29 may be fixed at one end and the depth of the corrugations varied by reciprocating the other end by hand or other means. In a further modification the sheet 29 is a plane and is given a rocking motion. Specification 617,069 is referred to.
Patent GB-230739-A (GB)
Title: A compound for preventing the formation of, and for the removal of, boiler scale
IPC: C02F5/08
Filed: 1924-09-29
Abstract: 230,739. Gurr, C. E. Sept. 29, 1924. Incrustation and corrosion, preventing and removing.-A mixture for treating boiler water comprises rock lime, soda ash, oxalic acid, water, and crude oil. The preferred mixture is 5 1bs. of soda ash, 4 1bs. of rock lime, 1 lb. of oxalic acid mixed with 8 gallons of boiling water, and 2 gallons of crude oil.
Patent GB-510053-A (GB)
Title: Process for the crystallisation of alkaline earth metal nitrates
IPC: C01F11/44
Filed: 1938-08-04
Abstract: 510,053. Fertilizers. AZOGENO SOC. ANON., and TONIOLO, C. Aug. 4, 1938, No. 23035. Convention date, Aug. 4. 1937. [Class 111] [Also in Group III] Alkaline earth or magnesium nitrates are crystallized to yield a granular fertilizer by spraying a supersaturated solution or supercooled melt thereof on to a continuously stirred layer of the same salts in powdered form, the said layer containing also nitrate or other compound of ammonia in solid form. Specifications 5586/10, 180,180 and 249,370, [all in Class 111], and French Specification 764,440 are referred to.
Patent GB-1089977-A (GB)
Title: Smoker's pipe
IPC: A24F1/00
Filed: 1965-05-31
Abstract: 1,089,977. Tobacco pipes. S. J. EVERETT. May 23, 1966 [May 31, 1965], No. 23097/65. Heading. A2M. A smoker's pipe has a plunger extending through the base of the bowl which is resiliently biased into a downward position but is capable of upward movement into the bowl on the application of pressure. The plunger slides in a bushing 5 and has an enlarged head 8. It may be biased downwardly by. a. leaf spring 9 as shown, by a resilient bushing, Fig. 2 (not shown), or by a. coil spring, Fig. 3 (not shown). The plunger may be held captive by means of a portion 10 of the spring 9 or by providing its upper end. with an enlarged. portion.
Patent GB-154386-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G5/12
Filed: 1919-09-19
Abstract: 154,386. Goldstone, F. G., and Brydon, S. Sept. 19, 1919. Condensers.-In a variable condenser comprising two series of elements, one series being fixed and the other movable, each element is in the form of a shell or cup, such as is generated by the partial revolution of a line about an axis which the line meets or cuts at two points.. In the form shown, the elements are of hemispherical Shape, the fixed series 2 - - 6 being mounted on a plate 1 while the movable series 2a - - 5a is carried by a spindle 15 adapted to be rotated by a knob 30. A portion, rather less than a semicircle, of the periphery of each fixed element engages a groove in the plate 1, and bars 6<a> are threaded through holes in the peripheries of the fixed elements and secured to the plate by screws. The movable elements are similarly mounted in glrooves in a flattened face 16 of the spindle 15, and are secured in position by a rod 18. One of the terminals of the condenser is connected to the spindle by a coiled lead 21, the other terminal being connected to the plate 1 by a lead 11. Each element of the movable series is adapted to pass between a pair of elements of the fixed series, and the capacity is adjusted by turning the spindle, on the top of which is mounted a scale 28.
Patent GB-141274-A (GB)
Title: Improvements in pneumatic cleaning apparatus
IPC: A47L9/08
Filed: 1919-09-20
Abstract: 141,274. Farnsworth, W. W. Sept. 20, 1919. Vacuum cleaning - apparatus. - A vacuum cleaner of the kind comprising an air circulation through blast and suction nozzles is provided with a single narrow inlet slot moving over the surface and narrow blast outlet slots extending along each side of the inlet slot, the air passing in succession through the inlet slot, an electric fan, a filter bag and the blast nozzles. As shown, a fan contained in a casing 10 and operated by a motor 11 draws dusty air through the surface to be cleaned and through the narrow nozzle 15 and forces it into an air-tight filter bag 19 detachably secured to the fan casing. The air entering this bag is freed from dust by the filter partition 24, Fig. 6, and passes out through a channel 23 to the blast passages 17 whence it issues through narrow slits at the side of the suction nozzle, raising dust from the surface which passes into the suction nozzle. The bag is formed with openings at one end for cleaning-out purposes, and is secured by a plate 26 attached by a chain to the operating handle. The nozzle is secured by clips to the fan casing.
Patent GB-626270-A (GB)
Title: Improvements relating to edge-cutting attachments for lawn mowers
IPC: A01G3/06
Filed: 1947-08-21
Abstract: 626,270. Lawn-mower edge-trimmers. WEBB & CO., Ltd., H. C., and TAYLOR, F. W. Aug. 21, 1947. No. 23235. [Class 6(ii)] In an edge-cutter for attachment to a lawnmower, a rotary starwheel cutter .7 is adjustably mounted relative to a fixed blade 3. Bayonet pins 18 in the hub 2 secure the attachment to the mower frame, the pins being mounted in the bearing 2 for a shaft keyed to the mower-cutter shaft. Nuts and a resilient dished washer separate the fixed and rotary cutting members 3, 7, pressure on the washer being maintained by the end-piece 28, the stem of which is threaded to engage within the shaft keyed to the mower-cutter.
Patent GB-821821-A (GB)
Title: Improvements in the determination of the gas content of liquid metals
Inventor: RANSLEY CHARLES ERIC
IPC: G01N27/18
Filed: 1954-08-10
Abstract: The hydrogen dissolved in a molten metal, such as aluminium, is measured by causing a free surface of the metal to form at a location within the body of the metal and circulating a volume of inert gas, e.g. nitrogen or argon, in contact with the metal below said free surface, a plurality of times through this location and a path extending externally of the body of the metal and determining the hydrogen content of the circulated gas when it is substantially in equilibrium with the hydrogen content of the <PICT:0821821/III/1> <PICT:0821821/III/2> molten metal.  The thermal conductivity or the pressure of the gas may be used as a measure of the quantity of gas. The free surface may be formed by immersing in the metal a hollow body having at least a part of its wall composed of a material pervious to hydrogen and to the inert gas but impervious to the molten metal and removing hydrogen from the metal by circulating the volume of inert gas once every second for a period of the order of 1 1/2 minutes.  As is shown in Fig. 2, and is described in a similar earlier Specification 684,865, measurement may be made by means of a palladium thimble and measurement of the pressure developed by a manometer.  Alternatively, as is shown in Fig. 1, the thermal conductivity of the gas may be measured in an apparatus which comprises an immersion head 1 by means of which the inert gas is to be brought into direct contact with the molten metal 2 below the surface thereof; a pump indicated generally at 3 by means of which the gas is to be circulated to and from the immersion head 1: and means indicated generally at 4 for measuring the concentration of hydrogen in the gas as it circulates externally of the molten metal. Ceramic materials such as alumina may be used for the immersion head but the preferred head is made of stainless steel (18-8 Cr-Ni type) coated with a vitreous enamel and preferably protected with a refractory wash which adheres firmly to the enamel.  Nitrogen is admitted to the gas circulation circuit from 31 under the control of a cock 30.  An electrical measuring device comprises two platinum spirals 20 and 21 which are connected electrically into a normal Wheatstone bridge arrangement with two fixed resistances 37 and 38.
Patent GB-385903-A (GB)
Title: Improvements in pedals for cycles, juvenile road vehicles and the like
IPC: B62M3/08
Filed: 1932-08-19
Abstract: 385,903. Pedal driving - mechanism. WARD, A. E., 10, David Road, Handsworth, Birmingham. Aug. 19, 1932, No. 23256. [Class 136 (ii).] Pedal-crank mechanism for cycles, of the type in which the pedal pin is eccentrically connected to the end of the crank in such a way as to increase the leverage during the down stroke, is constructed as follows. The pedal pin d is fixed to the pedal, as by nuts a<4> and squared parts a<3> engaging the endplates a<2>, and its screw-threaded end c is mounted eccentrically in a disc d, which is mounted by ball bearings f in a casing formed of two cups e, e<2>, the cup e<2> being provided with an axial extension g adapted to screw into the crank g<2>. The cups e, e<2> are formed from sheet-metal pressings, and are adjustably screwed together and held in position by a screw-threaded locking-ring e<4>. The cup e<2> has a lubricating hole fitted with the usual pivoted spring cover. As a modification, the disc d may have a threaded concentric extension for application to the crank, and the inner cup e may have an eccentric connection to the pedal pin d.
Patent GB-731807-A (GB)
Title: Improvements in hooks for garment hangers
IPC: A47G25/32
Filed: 1951-10-05
Abstract: 731,807. Hooks. KENNEDY, E. N. Oct. 5, 1951 [Oct. 11, 1950], No. 23261/51. Class 89(2). [Also in Group XIV] A hook that can be collapsed in a garment hanger to facilitate packing has a shank B slidable in a hole in the hanger body and given a return bend E. F so that the end of the shank can enter a second hole G in the body parallel to the first hole. A blind hole M may be provided, located as shown, to receive the end L of the shank when the hook is in the collapsed position. In the free state the end K of the shank is slightly inclined to the other limb so that friction due to spring pressure tends to retain the hook in the collapsed position. The length of the shank B to the point N is such that the point L does not quite disengage from its hole but requires to be pulled from it under spring pressure. The shank may take the position shown in Fig. 3 when the hanger is to be placed on top of a door or on a picture rail.
Patent GB-771743-A (GB)
Title: Desulfurization of fluid coke
IPC: C10B55/10
Filed: 1955-08-15
Abstract: 771,743. Desulphurizing coke. ESSO RESEARCH & ENGINEERING CO. Aug. 15, 1955 [Sept. 13, 1954; Nov. 30, 1954], No. 23418/55. Class 55 (1). Coke, produced by contacting a fltiidized bed of coke particles at coking temperature with a heavy petroleum oil, the heat being supplied by circulating a part of the coke particles between the coking chamber and a heater chamber, is desulphurized by contacting it with hydrogen or sulphur dioxide at a temperature in the range 2000‹ to 2900‹ F., and preferably 2200‹ to 2700‹ F. The pressure during the contact treatment is from atmospheric to 75 lbs. per sq. inch, and the time, which decreases with as the temperature rises, is from 15 minutes to 6 hours, and preferably 30 minutes to 4 hours. When sulphur dioxide is used, the mol. per cent concentration of sulphur dioxide in the treatment gas is from 1 to 100 per cent, preferably 5 to 100 per cent with 10 to 6000 v/v/hr., preferably 20 to 3000 v/v/hr. Diluent gases may include nitrogen, carbon monoxide, air, carbon dioxide, &c. The treatment may be of fluid coke in a dense, turbulent, fluidized bed, or in a moving bed, or in a fixed bed. Examples are given of the treatment, using either sulphur dioxide and hydrogen, with temperatures and times, sulphur removal and increase in real density of the coke. When hydrogen is used with a fluidized bed, the effluent gases from the treatment are, after scrubbing out H 2 S, recirculated back to the desulphurizing zone.
Patent GB-301564-A (GB)
Title: Process for the dyeing of artificial silk comprising acyl derivatives or ethers of cellulose or of its conversion products
IPC: D06P3/34
Filed: 1927-09-06
Abstract: 301,564. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Sept., 6, 1927. Azo dyes for producing non-phototrope dyeings on cellulose esters or ethers or conversion products therefrom are obtained by coupling diazotized aminomonosulphonic or aminomonocarboxylic acids or substitution products thereof with a: gamma-diketohydrindene or derivatives thereof. The following dyestuffs are specified :-sulphanilic acid # alpha : gamma-diketohydrindene, producing a yellow dyeing or acetate silk; 4-chloraniline-2-sulphonic acid, or m-xylidine-o-sulphonic acid, or o-sulphanilic acid, or 4-aminoacetanilide-3-sulphonic acid, or 5-nitro-2-anisidine-3- sulphonic acid # alpha : gamma-diketohydrindene, producing yellow or orange dyeings; anthranilic acid # alpha: gamma-diketohydrindene, producing a yellow dyeing; 2 : 6-aminonaphthoic acid or 1 : 4- naphthylaminesulphonic acid # alpha : gamma-diketohydrindene. 5-Nitro-2-anisidine-3-sulphonic acid is obtained by sulphonating 5-nitro-2-anisidine in an indifferent organic solvent such as tetrachlorethane.
Patent GB-436410-A (GB)
Title: Improvements in or relating to dyeing and printing
IPC: D06P1/32
Filed: 1934-08-14
Abstract: Aniline-black and like dyeing; printing; wetting agents, applications of.--In processes for colouring fibrous materials with oxidation dyestuffs there are added to the dyebaths or printing pastes, containing the aromatic bases or their salts to be oxidized, substances which give rise to cations capable of reducing the surface tension.  Such additions enable undressed, unbleached fibrous materials to be dyed or printed satisfactorily with oxidation dyestuffs.  As aromatic bases are specified aniline, p - phenylenediamine and m - aminophenol.  Specified additions are quaternary ammonium, quaternary phosphonium and ternary sulphonium salts carrying aliphatic residues containing at least eight carbon atoms.  The quaternary ammonium salts may be derived from tertiary heterocyclic bases such as pyridine, or may be salts such as triethylcetylammonium halides with four alkyl radicles of which at least one contains at least eight carbon atoms, or may be derived from monoacylated diamines such as oleyldiethylethylenediamine.  The following examples are specified.  (1) Unboiled non-pre-wetted cotton piece goods are dyed a deep level black by impregnation at room temperature with an aqueous liquor containing aniline hydrochloride, aniline, sodium sulphite, potassium ferrocyanide, sodium chlorate and decylpyridinium sulphate, drying at 80--90 DEG  C., steaming for 1 minute at 108 DEG  C., treating for 5 minutes in an aqueous solution of sodium chromate at 40 DEG  C., rinsing, washing and drying; the goods may be printed with a reserve before the impregnation or before the steaming.  (2) A non-wetted, unboiled cotton yarn is dyed a deep level black, fast to rubbing, by impregnation at room temperature with an aqueous liquor containing aniline salt, p-phenylenediamine, ammonium sulphite, sodium chlorate, copper sulphate and dodecylpyridinium sulphate, storing for 24 hours at 20 DEG  C., oxidizing in a solution containing sodium bichromate and sulphuric acid, rinsing, and washing in a solution containing Marseilles soap and sodium carbonate.  (3) An unbleached cotton fabric is dyed a level brown by slop-padding in an acqueous liquor at room temperature containing p - phenylenediamine, sodium sulphoxylate, sodium chlorate, ammonium chloride, tartar emetic, hexadecylpyridinium chloride and ammonium vanadate, drying at 80--90 DEG  C., steaming for 1 minute at 108 DEG  C. and finishing as usual; a printed reserve may be employed.
Patent GB-636061-A (GB)
Title: Improvements in, or relating to, draw-off cocks
IPC: F16K7/16
Filed: 1947-08-26
Abstract: 636,061. Manually-actuated valves. TRUBERT, R. E. L. Aug. 26, 1947, No. 23511. Convention date, Nov. 30, 1945. [Class 135] A water tap has its cam control members separated from the water conduit by a spring- loaded closure diaphragm. As the handle 10 is rotated, cam surfaces 14 on the handle cooperate with cam surfaces 13 on the body to lift the rod 7 against the spring 9 so that the diaphragm valve 5 is opened by the waterpressure. The cams are so inclined that the handle will stay in any set position. The invention may be adapted to a conventional tap by screwing a tubular flanged intermediate member into the tap body to provide a seating for the diaphragm. In two modifications, in which the inlet and outlet are at right angles, a flanged cylindrical member is screwed into the tap body and has an upstanding externallyribbed part, the ribs engaging ribs on a ring member carrying the cam surfaces 14, so that the ring may be adjusted in order to set the handle in any desired direction. In a further modification, the handle is smoothly contoured in alignment with the outlet.
Patent GB-763123-A (GB)
Title: Improvements relating to dead bolts for locks and latches
Inventor: JOHNS-HUNT JOHN
IPC: E05B15/10
Filed: 1954-08-13
Abstract: 763,123. Lock bolts. YALE & TOWNE MANUFACTURING CO. June 21, 1955 [Aug. 13, 1954], No. 23544/54. Class 44. A dead bolt for locks and latches is provided with upper and lower lath elements, secured to or formed integrally with the bolt head. As shown, separate lath elements 1, 2 are formed with ends 1a 2a which lie in recesses 5a, 5b in the bolt head 5 and are secured by a rivet 6. A talon 9 is engageable in holes 7 and 8. In another form, Fig. 3 (not shown), the elements 1, 2 extend over the full width of the bolt head, which is not recessed, and are secured by two rivets. In another arrangement. Fig. 4 (not shown), the lath elements consist of a single U-shaped member, the bolt head being enclosed within the legs of the U. In a further arrangement, Fig. 5 (not shown), the lath members are formed with thickened end portions which constitute the bolt head. A hardened steel plate may be located between the thickened end portions.
Patent GB-340526-A (GB)
Title: An improved instrument for indicating variations of linear measurements
IPC: G01B5/30
Filed: 1929-07-31
Abstract: 340,526. Linear-dimension gauges. HUGGENBERGER, A., 16, West Street, Zurich, Switzerland. July 31, 1929, No. 23560. [Classes 106 (ii) and 106 (iv).] A strain-measuring gauge, of the type in which the relative movement of the gauge points is multiplied by a lever carrying one of the gauge points, comprises a body piece 2 carrying an adjustable point 5 and provided with a groove 6 to accommodate a lever 7 having a knife-edge support 8 for the body piece and at its lower end a point 12. Retaining pins 10 on the lever engage a notch 11 in the upper edge of the body piece 2. The lever 7 is connected to a pointer 14 by a link 17 tensioned by a spring 18 and resting on knife-edges 16 on the members 7, 14. The pivot pin 15 for the pointer may be carried in a block 22 adjustable by a screw 23. Alternatively, the support 13 for the pointer may have an upper adjustable part, or the scale 20 may be adjustably mounted. Again, the pointer 14 may be held frictionally on a pivot pin 15a, Fig. 4, to allow for rotational adjustment, and may be fitted with a counterweight 26, the link connection with the lever 7 being made through a knife-edge 16a on an arm 25. The pointer 14 may be carried by a pivoted arm 28, Fig. 6, provided with counterweight arms 29 and slotted to receive a knife edge 16b adjustable in a slot 30 by means of a screw 31. Instead of using a pivot pin 15, the arm 32 carrying the pointer 14, Fig. 8, may be supported by a lug 33 on the bar 13 by means of a thin flexible strip 34, the arm 32 being held between the point of a screw 35 and a spring 37 and being provided with a knife-edge 16c to be engaged in a notch in the link 17. To secure the lever 7 against movement whilst the instrument is being carried from place to place, a spring-held arm 38 is swung so as to engage a pin 42 on the lever. Alternative cam-and-slot locking devices are described.
Patent GB-1312662-A (GB)
Title: Control system for a rolling mill
IPC: B21B38/10
Filed: 1970-05-15
Abstract: 1312662 Automatic control of rolling WESTINGHOUSE ELECTRIC CORP 15 May 1970 [27 May 1969] 23597/70 Heading G3R A rolling mill control system of the type having screwdown position control for the stands is provided with means to periodically determine the mill spring modulus for one or more of the stands, to compare this modulus with a previously determined modulus for that stand and to initiate alarm and/or corrective action should the result of the comparison indicate a change in modulus beyond certain limits, resulting from a faulty component in the control for that stand. The invention is applied to a known on-line digital computer control system shown in Fig.1, in which the computer is programmed to store the value of the modulus for each stand and to periodically determine the modulus, for example after a shut-down or a change of work rolls, by adjusting the rolls to obtain two pairs of roll force and screwdown position values on the linear portion of the mill spring characteristic, Fig.2, (not shown). A change in the modulus due to a faulty component, stated to be most likely the load cell 26, is used to initiate the following actions:- (1) alarm the operator to turn off the gauge control for the stand and any roll force gauge control operation for the stand by the computer 12, if the modulus has changed by more than  30%. (2) alarm the operator to check the load cell 26 and position detector 24 if the change is more than  10%. In addition the roll force feedback signal is adjusted by the computer in dependence on the value of the change limits  10%. (3) adjust the roll force feedback signal by a factor equal to the ratio of the present to the previous modulus, if the change is more than  3% (no adjustment is made if the change is within  3%). Typical computer control programmes to effect the above procedure are described. Fig.3 and 4, (not shown), which programmes also provide information to obtain the calibration offset, which is added to the screwdown position to obtain the unloaded roll opening of the stand, and the roll eccentricity deadband.