baber/WOPTO huggingface dataset:
Patent GB-1469272-A (GB)
Title: Centrifugal screen separator
IPC: B01D33/00
Filed: 1974-03-12
Abstract: 1469272 Centrifugal strainer SWECO INC 12 March 1974 [12 March 1973] 11032/74 Heading B1D Influent liquid-solid mixture is delivered by fixed means 10, 12 to the top of a rotating centrifugal screen drum 14, and any mixture which rebounds from the drum is returned thereto by a rotating distributor 16, comprising a sleeve 72, 74, 76, base flange 86 and radial plates 82. The sleeve is divided to allow jets of washing water from pipe 80 to reach the screen drum. The drum comprises nine flat screens (46) clamped removably to a supporting cage (Fig. 2, not shown), and one plate 82 is aligned with the centre line of each screen. The distributor 16 rotates in the same direction as the drum 14, and as described the distributor is secured to the drum by brackets 88 to rotate therewith. Notches 84 in the plates prevent mixture being directed towards horizontal centre supports 64 where screens are impervious. Screens could be divided at supports 64. As described mixture is delivered upwards by pipe 10, rebounds from baffle 40 and is delivered to the drum by inclined plates 12, and drive shaft 66 extends upwards to a motor. Alternatively the drum could be driven from below and filled from above. Access door 32 could be openwork to allow distributor 16 to create radial air curents to assist flow of mixture. The outer edges of plates 82 are spaced from screens (46) by less than half the plate height. One fourth of the screen area is below flange 86.
Patent GB-331290-A (GB)
Title: Improvements in or relating to apparatus for refining used lubricating oil
IPC: C10M175/00
Filed: 1929-04-10
Abstract: 331,290. Harris, W. D., and Aycock, R. V. April 10, 1929. Recovering waste lubricants.-In an apparatus for refining used lubricating , oil comprising a vessel in which a perforated plate is fixed above an inlet through which oil is admitted, a filter screen is mounted between the perforated plate, and the bottom of the vessel and below said oil inlet, below which screen the purified oil is drawn off. In operation, hot oil is supplied from a still 14 through a pipe 11 in the jacketed vessel 1, to the space between the perforated plate 10 and the screen 5 carried on a ring spider 4, and supported by a gasket 3 and ring 2, and the oil passes upwardly through an adsorbent material, e.g. fuller's earth. The suspended matter on settling passes through the plate 10 to form a compact bed on the screen 5, through which the oil finally passes and is drawn off through a cock 8. A neutralizing agent such as an alkaline earth oxide, e.g. calcium or barium oxide, may be added to the adsorbent. Specification 331,876 is referred to.
Patent GB-1223964-A (GB)
Title: Improvements in or relating to apparatus for winding yarn packages
IPC: B65H54/18
Filed: 1969-03-03
Abstract: 1,223,964. Doffing arrangements, traverse mechanism. PLUTTE, KOECKE & CO. 3 March, 1969 [2 March, 1968], No. 11283/69. Heading D1J. [Also in Division B8] Core-less yarn packages 42 are wound on a mandrel 3 driven by a polygonal spigot, 4 engaging a driving spindle 6, the mandrel 3 being mounted on a sprung counter-pressure spindle 1, which is movable, with the mandrel, by hydraulically or pneumatically actuated levers 11a, 12a to the position shown in chaindotted lines in fig. 1 to displace the wound package 42 from the mandrel by means of the face 8' of housing 7. A traverse guide 16 is moved with a sliding rod 17 (fig. 2) by means of a bell-crank lever 19, one arm of which is connected to rod 17 at 19", the elbow 20 of which is moved by a cam 23, and the other arm of which follows a slot 31 in a rotatable guide wheel 18. Rotation of the wheel 18 by gears 33, 36 results in differing lengths of traverse, which may be used to form packages 45 with tapered end portions. Nozzles may be provided (fig. 3, not shown) to spray a sealing and/or binding agent onto the completed core-less package, from the interior of which the yarn is drawn. The ratio of spindle speed to traverse speed is continuously variable by means of conical rollers 25, 26 and driving belt 27.
Patent GB-574391-A (GB)
Title: Improvements in or relating to fuzes for projectiles
IPC: F42C15/24
Filed: 1943-07-12
Abstract: 574,391. Projectile fuzes. O'SHEI, W. E. July 12, 1943, No. 11306. [Class 9 (i)] A projectile fuze having a striker'carried in a tubular guide and prevented from arming by one or more striker-retaining balls held in apertures in the guide by a spring-pressed arming sleeve, is assembled by using the striker-retaining balls to hold the arming sleeve against the action of the arming spring during assembly. The invention is described with reference to a Bofors type 255 fuze. In one form of assembly, the striker, guide 9, Fig. 1, is placed on a table 11 provided with a spring-pressed pin 2 which is grooved at 7 to accommodate one or more balls 13 fed through apertures 8 in the striker-guide by grooves 11 in a jig 10, the pin 2 then being magnetised by an electrical device 6 to retain the balls, after which the jig 10 is removed. The arm sleeve 15, Fig. 3, and arming spring 14 are then positioned and the fuze hammer 17 inserted to depress the pin 2 and project the balls into apertures 16 in the arming sleeve, the radius of the ball being less than the radial thickness of the striker guide so that a frictional pressure is applied to the hammer, through the balls, by the arming spring, thereby retaining the hammer in position. The fuze unit may then be removed from the table 1, inverted and screwed into the body 20 until the arming sleeve is nearly touching the stirrup spring 22 mounted on the ferrule 21. The striker 23 is then inserted, depressing the hammer 17 and allowing the balls to move into locking engagement with the striker groove, whereupon the released arming sleeve moves under the influence of the spring 14 into engagement with the stirrup spring 22, .assembly of the fuze being completed by the final screwing of the fuze unit into the body. In a modified form of assembly, a cylindrical part of the striker is used to hold the balls 13, Fig. 7,in a position in which they lock the arming sleeve 15 to the striker guide during assembly. In this modification the fuze unit is inserted in upright position into the body 20, the balls moving into the striker groove when the hammer 17 engages the body and prevents further endwise movement of the striker as the guide is screwed in. The inward movement of the balls releases the arming spring which then moves into contact with the stirrup spring 22 as previously described.
Patent GB-443130-A (GB)
Title: Silo of concrete or similar material
IPC: E04H7/28
Filed: 1935-04-12
Abstract: 443,130. Silos. SCHMIDT, F., 3, Marienstrasse, Verden, Aller, Germany. April 12, 1935, No. 11388. Convention date, April 16, 1934. [Class 20 (i)] Silos, particularly for green fodder or potatoes, have the walls built of narrow upright sheets or strips 1, of concrete, which are held together by tensioned bands and which have strengthened rim portions 3, 4 at the upper and lower ends. The strips 1 may have longitudinal reinforcing bars and may make tongue and groove connection with each other. The longitudinal edges may be coated with bituminous cement before assembly. The rim 4 has a seating 5 for a lid, or for the lower projecting portions 10 of superposed similar strips used for increasing the height of the silo. The lower ends of the strips may have a recess 9, Fig. 4, to interlock with the concrete floor, which is cast when the walls have been assembled in a pit and secured by bands 7 tensioned by strainers 8. The entire interior of the silo may be coated with bituminous cement to render the silo air-tight. Specification 427,802 is referred to.
Patent GB-745926-A (GB)
Title: Improvements in or relating to wafers and the like bakery products
IPC: A21D2/18
Filed: 1953-04-24
Abstract: Wafer-type bakery products which swell on ingestion to produce a feeling of satiety, and are thus of use in the treatment of obesity, contain 10-20 per cent of carboxymethyl cellulose, sodium carboxymethyl cellulose, or methyl cellulose.  Examples are concerned with making graham crackers from mixes of methyl cellulose, carboxymethyl cellulose or sodium carboxymethyl cellulose, flours, shortening, sugars, salt, sodium carbonate, ammonium bicarbonate, baking powder, ginger, and water, the shortening being mixed preliminary with the cellulose derivative in order to minimize its swelling during preparation of the dough, and so ensuring a palatable crispness in the baked products. Other examples are concerned with making wafers and cookies from vanilla-flavoured mixes of different viscosity grades of methyl cellulose and carboxymethyl cellulose, flour, butter or hydrogenated fat, sugar, salt, baking powder, and water, with making zwiebacks from a yeast-leavened dough of methyl cellulose, flour, butter, sugar, salt, cinnamon powder, and milk, and with making soda crackers from a mix of methyl cellulose, flour, sugars, shortening, salt, sodium bicarbonate, ammonium carbonate, and water.
Patent GB-118305-A (GB)
Title: Improvements in the Treatment of India-rubber and the like.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: B29C35/00
Filed: 1917-08-09
Abstract: 118,305. Jackson, W. J. Mellersh-, (Morgan & Wright). Aug. 9, 1917. Drawings to Specification. Vulcanizing.-The extent of expansion during vulcanization is taken as indicative of the degree of vulcanization attained. The invention consists in heating the rubber, &c., previously mixed with a vulcanizing-agent, and discontinuing the supply of heat when the rubber has expanded to an extent indicative of the degree of vulcanization desired. A series of expansions during the time of application of heat may be determined with a sample of rubber compound confined in a cylinder provided with a piston and gauge for indicating expansion and with a steam jacket. A table prepared from these observations can be used as a guide in manufacturing vulcanized articles.
Patent GB-233360-A (GB)
Title: A device for indicating the correct adjustment of speed of electromotors
IPC: G11B17/02
Filed: 1924-03-21
Abstract: 233,360. Lott, C. March 21, 1923, [Convention date]. Indicating arrangements.- An electric motor is adjusted to run at a given speed, and a centrifugal brake governor 11, 18 is provided with a braking member 20, such as a friction wheel attached to a pointer 4, capable of being varied in position by a screw and spring adjustment 9, 10 so as to accord with a given mark 3. The speed is controlled by adjusting a resistance &c. when the pointer deviates from the mark. The motor may drive a gramophone.
Patent GB-1429108-A (GB)
Title: Colour photographic light-sensitive silver halide materials
IPC: G11B7/243
Filed: 1974-03-15
Abstract: 1429108 Photographic silver halide material containing bleach inhibitor FUJI PHOTO FILM CO Ltd 15 March 1974 [15 March 1973] 11712/74 Headings G2C and G2E A photographic material comprises a support bearing at least three light-sensitive silver halide emulsion layers containing yellow, magenta and cyan colour couplers respectively and at least one auxiliary silver halide emulsion layer containing a compound which inhibits the bleaching of a developed silver image formed in the emulsion layer, which image does not contain sufficient silver to impair the clarity of the coloured dye images formed, the bleach inhibitor having the formula:- where Z completes an optionally substituted pyridine, imidazole or quinoline nucleus; X<SP>#</SP> is an anion; and Alk is an optionally substituted alkyl group having at least 11C. Alk may have up to 100C. The auxiliary layer may contain a colour coupler, and 0.5-5g per m<SP>2</SP> silver or 0.3-3g per m<SP>2</SP> silver when a development accelerator is also present in the layer e.g. a colour coupler or competing coupler. The auxiliary layer may be greensensitized and have a sensitivity of 1 or less than that of the or each other emulsion layer with which the sensitivity overlaps. In Example 4 the greensensitive silver halide emulsion layer contains two magenta couplers.
Patent GB-582327-A (GB)
Title: Improvements relating to the production of polystyrene
IPC: C08F12/08
Filed: 1943-07-19
Abstract: Polymerizing an aqueous dispersion of styrene in the presence of free sulphur dioxide which during the polymerization is subjected to a slow rate of oxidation by molecular oxygen in the presence of a substance catalysing this oxidation.  The catalyst is a water-soluble salt of copper, chromium, iron, cobalt or manganese; copper sulphate is specified.  Emulsifying agents, e.g. sulphonated lauryl alcohol, and protective colloids, e.g. gelatine, may be present.  An example of the polymerization of styrene, dispersed in water with sulphonated lauryl alcohol, sulphur dioxide and copper sulphate is given. Specification 582,134 is referred to in the Provisional Specification.
Patent GB-117702-A (GB)
IPC: B63B3/20
Abstract: 117,702. Williams, E. O. Aug. 9, 1917. Concrete vessels. - In reinforced - concrete ships, barges, and floating structures having double walls, the vertical cavities 4 are formed by vertical reinforced-concrete webs constructed with the walls and are preferably subdivided by horizontal webs. Holes 5, 6, 7, 8, 10 for access to the cavities are formed in the deck, webs, and inner wall, the bottom hole 7 being the smallest. These holes are normally closed by removable plugs of inferior concrete so that, in the event of damage to the walls, any cavity can be readily filled in with concrete or other setting mixture which jambs in the bottom hole 7. The walls are reinforced by vertical and longitudinal bars 12, 13 in uniform distribution, as shown, and the webs are formed on crossed bars 15 provided with hooked arms 15<1> extending over several vertical bars in opposite walls and anchoring therewith. The cavities may be used, if necessary, for water ballast.
Patent GB-758354-A (GB)
Title: An improved shutter for photographic cameras
IPC: G03B9/08
Filed: 1953-04-28
Abstract: 758,354. Kinematograph cameras; shutters. VINTEN, C., and VINTEN, Ltd., W. March 25, 1954 [April 28, 1953], No. 11772/53. Classes 97 (1) and 95 (1). An endless flexible opaque shutter blind 42 comprises two superposed loops of textile fabric impregnated with and bonded by a synthetic rubbery' adhesive to retain between them metal reinforcements adjacent the leading and trailing edges of an aperture 62 in the blind having parallel straight edges extending at right angles to the length of the blind. As shown, the blind may also have an additional aperture 61 of length not less than twice that of the exposure gate 48, the length of the opaque portion 72 being at least as great as and preferably substantially equal to the sum of the lengths of the aperture 61 and the opaque portion 73. The shutter blind is driven by a continuously rotating sprocket 41 engaging metal reinforced feed perforations 64 (Fig. 1, not shown) and the film feeding sprocket 44 is intermittently driven while the take-up spool 49 is continuously driven as described and claimed in Specification 758,378, the film being at rest when the slit 62 crosses the exposure gate. The camera lens and diaphragm assembly is as described and claimed in Specification 758,353. In an alternative embodiment in which the blind has only the single aperture 62 (Fig. 4, not shown), the blind surrounds the film magazine.
Patent GB-774397-A (GB)
Title: Improvements in or relating to grain driers
IPC: F26B11/04
Filed: 1954-04-23
Abstract: 774,397. Mixing machines. BARRONIA METALS (GREAT BRITAIN), Ltd. and BULLEN, F. J. June 14, 1955 [April 23, 1954], No. 11802/54. Class 86 [Also in Group XIII] The rotatable drum 10 of apparatus for drying grain (see Group XIII) may also be used for mixing poultry mashes &c. The drum, supported on rollers 16 and driven by an internal combustion engine, has annular end plates 21 and six internal curved blades 20, a ring 22 preventing material spilling out of the drum from the ends of the blades. Material is fed from a hopper and discharged by a shoot movable into the path of the agitated material.
Patent GB-878440-A (GB)
Title: Improvements in or relating to circuit arrangements for the prevention of screen burning of a display tube in a television receiver shortly after the latter has been switched off
IPC: H04N3/20
Filed: 1960-04-04
Abstract: 878,440. Cathode-ray tube circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 4, 1960 [April 7, 1959], No. 11815/60. Class 40(7) In order to reduce brightness modulation arising from grid-cathode bias variation with H.T. voltage due to mains voltage fluctuation, a television receiver C.R.T. screen burn protection circuit, of the kind in which the beam current is maintained after switching off in order to discharge the final anode smoothing capacitor rapidly, includes a voltage-dependent resistor 15 in series with capacitor 14.
Patent GB-290277-A (GB)
IPC: B65H63/06
Filed: 1928-04-23
Abstract: 290,277. Hufford, H. J. May 13, 1927, [Convention date], Clearing - apparatus of the kind comprising fixed and movable blades provided with scraping edges, the movable blade being adapted to slide in a path inclined to the scraping edges to vary the width of the slit formed by the edges, consists of a plate 8<a> with a scraping edge 14a carried by a sleeve 11, which embraces a fixed plate 8 provided with a cooperating edge 14 and is adjustable longitudinally of the plate 8 to vary the width of the slit formed by the edges. The plate 8 is secured between flanges on a base plate. The sleeve is locked in position by a set screw 15, Fig. 6, turned by a key or wrench 18, which is provided with a pivoted dog 21 so that when it is inserted in a central hole in the screw the dog is turned by contact with the plate 8 and engages a notch 19 in the screw whereby the screw may be turned; upon withdrawal of the key the dog returns to its normal position of axial alignment with the key.
Patent GB-310005-A (GB)
Title: Locking device for the spindles of movements, in particular for the grip spindles of cinematograph movements
IPC: G03B19/18
Filed: 1929-04-17
Abstract: 310,005. Junghans Akt.-Ges., Geb. April 19, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Locking rotary elements by positive detents.-A locking device for rotary spindles, more especially for " the grip spindles of kinematograph movements provided with flywheel masses and which control switching processes at given intervals," comprises a pawl c the nose of which rides down an inclined groove f in a flywheel mass b as the spindle a rotates in the direction of the arrow, the ,groove terminating in a recess or notch e bounded by shoulders g, h which ensure positive locking in either direction without play.
Patent GB-189741-A (GB)
IPC: C09K5/20
Filed: 1922-04-28
Abstract: 189,741. Reinhartin-Werk Chemische Fabrik Ges., (Assignees of Reinhart, G.). Nov. 28, 1921, [Convention date]. Corrosion, preventing.-In the liquid used in the cooling systems of motor-cars &c. a solution is employed of two or more metallic chlorides the metals of which, while not differing greatly from each other in their electrochemical values are more strongly electropositive than zinc, the most electropositive metal used in the construction of the radiator. The solution may contain calcium chloride and magnesium chloride in the proportions of one to four.
Patent GB-1039314-A (GB)
Title: A walking roof support system for longwall workings in coal mines
IPC: E21D23/26
Filed: 1964-03-20
Abstract: 1,039,314. Mine roof support systems. K. GERLACH and H. GERLACH. March 20, 1964 [March 22, 1963], No. 11988/64. Heading F1P. [Also in Division B8] In a walking roof support system Fig. 1 (not shown) wherein a plurality of support assemblies each comprising hydraulically extendable props 1, 2 and each advanceable by an hydraulic thrust cylinder 8 towards a face conveyer 9, a separate, self-contained portable control unit 12 for operating the hydraulic system of each support assembly is releasably connected to supply and return pipes 10 and to the coupling 15 of the particular support assembly which is to be operated. Each prop 1, 2 has a lock 3 having an associated wedge 4 movable by an hydraulic wedge actuator 16 connected to the control unit 12. Alternatively each prop 1,2 may be provided with an hydraulic locking device, in which case the control means for the locking devices is incorporated directly in the control unit 12. In a second embodiment the thrust cylinder 8 is combined with the control unit 12, the combination being detachable from a roof assembly for connection to another assembly for use therein.
Patent GB-561212-A (GB)
Title: Improvements in the production of chromium compounds
IPC: C01G37/14
Filed: 1942-08-28
Abstract: 561,212. Chromates and bichromates. UDY, M. J. Aug. 28, 1942, No. 12167. Convention date, March 19, 1942. [Class 1 (iii)] Calcium chromate-bearing material is digested with an aqueous liquid containing an acid reacting with calcium chromate to produce a more insoluble calcium compound, in presence of an amount of basic constituents sufficient to convert most of the chromate to dichromate. The dichromate solution is separated from the insoluble matter, and may be reconverted into calcium chromate by treatment with a calcium compound.. The crude calcium chromate may be.obtained by roasting ferrochromium, oxidized ferrochromium, chromite ore &c. with lime, with or without soda ash. The acid may be carbonic or sulphuric or an acid salt of these acids. When calcium chromate is the endproduct desired only a minimum amount of alkali is added and the chromium is separated in solution as calcium bichromate, which is reconverted to chromate by treatment with lime. When an alkali metal bichromate is to be produced the metal is added in the form of'a chromate or an acid salt in amount sufficient to form bichromate with the' whole of the chromium.
Patent GB-850576-A (GB)
Title: Improvements in or relating to the electrolytic treatment of aluminium
IPC: C25D11/24
Filed: 1959-04-10
Abstract: 850,576. Anodising aluminium and alloys thereof. KAISER ALUMINUM & CHEMICAL CORPORATION. April 10, 1959 [April 14,1958 No. 12242/59. Class 41 An abradant resistant anodised surface is imparted to aluminium and its alloys, by using as electrolyte an aqueous solution containing sulpho-salicylic acid and either sulphuric acid or a metal sulphate, e.g. ferric sulphate. In a preferred process, the aluminium surface is (1) treated with alkali solution containing a little sodium fluoride, (2) washed with nitric acid, (3) anodised at room temperature with an electrolyte containing 7 to 15 % sulphosalicylic acid and a little sulphuric acid for up to 2 hours, (4) sealed with hot soapy water. Alloys, especially the one containing copper, are coloured, when H 2  SO 4  reduced to a content of À1 to 1 % of total electrolyte. Either A.C. or D.C. or a combination may be used. U.S.A. Specification 2,719,781 is referred to.