baber/WOPTO huggingface dataset:
Patent GB-461592-A (GB)
Title: Improvements in and relating to processes for the manufacture of cellulose ester foils or films, and apparatus therefor
IPC: B29C48/08
Filed: 1936-03-06
Abstract: <PICT:0461592/IV/1> <PICT:0461592/IV/2> <PICT:0461592/IV/3> Composite cellulose ester foils or films are obtained by producing one film by a wet casting method and then casting one or more further films upon the first film by wet casting so as to obtain composite films. Preferably, the undried film used as support is in a condition in which it is beginning to become solid when the next layer is cast upon it.  The further layers may be applied to one or both sides of the first layer.  If desired, the first layer may be formed by allowing cellulose ester solution to run directly into a precipitating bath.  As shown in Fig. 1, three casting rollers 1--3, are journalled in a precipitating bath F.  Cellulose ester solution is cast from the device 4 on to roller 1 and carried into the precipitating bath.  The film is removed from roller 1 and carried to roller 2 where it receives a layer of cellulose ester solution from the device 5.  The film is carried into the bath and then transferred to roller 3 where it receives a further layer of cellulose ester solution from the device 6.  The film passes again through bath F and then passes to a washing bath.  The casting rollers are arranged so that the film produced on one roller reaches the next roller in the desired condition of solidity.  Pressing rollers W1--W3 may be provided.  These may serve also to drive the casting rollers.  One or more of the casting rollers may have a polished surface, or a surface made so as to produce surface effects in the film.  In an example a composite film of cellulose tri-acetate is obtained by means of the apparatus of Fig. 1 using a primary cellulose acetate solution, and a precipitating bath of aqueous acetic acid.  In another example, a cellulose tri-acetate film obtained in a separate precipitating bath is conducted in moist state to a drum 13, Fig. 2, where it receives a layer of cellulose tri-acetate solution.  A further layer is deposited by the device 16 on drum 14.  In another example, a primary cellulose acetate solution containing copper bronze is cast by the slit casting device 22, Fig. 3, on a metal band 21 which passes round rollers 19, 20.  The precipitating liquid consists of aqueous acetic acid.  A clear layer of cellulose tri-acetate is cast upon the first layer by the device 23.  A film of metallic appearance with a high gloss on one side and a dull gloss on the other side is obtained. Specification 461,593 is referred to.
Patent GB-949582-A (GB)
Title: Improvements in sheet feeding mechanism having a sheet detector
IPC: B65H7/02
Filed: 1961-02-24
Abstract: 949,582. Feeding sheets. J. GAGG, and MOLINS MACHINE CO. Ltd. Feb. 23, 1962 [Feb. 24, 1961], No. 6879/61. Heading B6B. In sheet-feeding apparatus in which sheets are withdrawn from the bottom of a stack 1 by a rotating friction surface 2 and forwarded to a detecting position B by nip rollers 4, 5, the machine is stopped if no sheet be fed and if a plurality be fed at once. At the detecting position, the leading end of the fed sheet lies in the nip between two rollers 14, 15 the latter being driven. The height of the nip equals the thickness of one and a half sheets so that a single sheet remains in the detecting position but two sheets are immediately withdrawn therefrom to leave the position empty. A feeler 6 is lowered in synchronism with the feed into the detecting position and is normally stopped by a fed sheet in that position; but, if no sheet be there due either to no feed or to multiple feed, the feeler descends further and operates a switch S to stop the machine. Sheets are discharged in sequence from the detecting position by engagement therewith of abutments 21 on a conveyer chain 22.
Patent GB-691851-A (GB)
Title: Improved method of treating products with supersonic energy to accelerate physical, chemical or biological alterations
IPC: B01J19/10
Filed: 1949-03-14
Abstract: Solids, liquids or gases, particularly those containing cells, bacteria or virus are subjected to supersonic energy in pulses to accelerate physical, chemical or biological alterations, e.g. sterilization, the flow of supersonic energy applied being so powerful that if applied to the substance under treatment continuously, unwanted secondary effects caused by a rise in temperature would occur.  Rectangular pulses are preferably employed. Examples relate to (1) the treatment of milk with supersonic osillations of 3000 kilocycles per second in pulses of 5 micro seconds, the pulse repetition frequency being 6000 cycles per second. The oscillating surface has an area of 10 sq. cm. and the milk is passed between this surface and a ground quartz plate 2 cms. away (2) meat is treated at 15 DEG C to destroy enterobacteriaceae for 80 seconds as in (1) above.  Specification 356,783 is referred to.ALSO:Foodstuffs are sterilized by the application of supersonic energy in pulses, the flow of supersonic energy being so powerful that if applied to the substance under treatment continuously, unwanted secondary effects caused by a rise in temperature would occur.  The pulses of energy are preferably rectangular.  Examples relate to (1) the treatment of milk with supersonic oscillation of 3,000 kilocycles per second in pulses of 5 micro-seconds, the pulse repetition frequency being 6,000 cycles per second.  The oscillating surface has an area of 10 square cms., and the milk is passed between this surface and a ground quartz plate 2 cms. away. (2) Meat is treated at 15 DEG  C. for 80 seconds to destroy enterobacteriace  as in (1) above.  Specification 356,783, [Group III], is referred to.
Patent GB-301682-A (GB)
Title: A process and mixture for treating paper making fibres in the making of certain kinds of paper
IPC: D21H17/28
Filed: 1928-03-06
Abstract: 301,682. McNeill, R. March 6, 1928. Sizes.-A jelly or mass consisting of starch, glue, silicate of soda, and water, with or without precipitants, preservatives or formalin, is mixed with pulp in the beater before the addition of size and of alum for fixing. The production of fluff in the manufacture of " antiques " for light weight books in thus prevented. Suitable proportions are .120 lbs. starch, 30 1bs. glue, 10 gallons silicate of soda of 100‹ Tw., and up to 200 gallons water, the ingredients being heated but not boiled during mixing.
Patent GB-357928-A (GB)
Title: Improved method and means for anchoring the cable ends of suspension bridges
IPC: E01D19/14
Filed: 1931-03-05
Abstract: 357,928. Ground anchors. FELTEN & GUILLEAUME CARLSWERK AKT.- GES., M³lheim, Cologne, Germany. March 5, 1931, No. 6932. Convention date, March 22, 1930. [Class 45.] A ground anchor for the cable ends of a suspension bridge comprises a segmental plate b embedded in a corner of a rectangular cavity in the rock and having key-hole slots d along the segmental edge through which the cable end f passes.
Patent GB-327827-A (GB)
Title: Timing and registering apparatus employing thermionic valves
IPC: H04L15/26
Filed: 1929-03-04
Abstract: 327,827. Siemens Bros. & Co., Ltd., and Humphries, H. E. March 4, 1929. Selectors responsive only to a particular code signal. - The marks and spaces of a signal are measured against the discharge periods of two condensers QA, QB in the biassing circuits of thermionic valves V1, V2, and if they fall within prescribed tolerances a relay-chain is built up to close an alarm circuit. The signal is assumed to be three marks of 3¢ to 4¢ seconds separated by spaces of <1>/5 to 1¢ second, a mark being represented by energization of a relay SA. In the case of a correct signal the operation is as follows. Relay SA disconnects battery from the grid of V1 and closes a discharge circuit YA, YF for QA and after 3¢ seconds the falling bias permits energization of relay Z, which energizes ZA, A, E. The grid of V2 is disconnected from battery and QB discharges through YG, YB. After 1 second the falling bias would permit energization of relay R, but before this (since the signal is assumed correct) the mark ceases and SA falls back, followed at once by Z, ZA (since battery is again connected to the grid of VI). The condenser QB is recharged by a momentary connection over contacts of SA, ZA and then discharges again (more slowly) through YG, YC, YB. After 1¢ second R would become energized, but before this can happen SA is re-energized by the second mark, battery is re-connected to the grid of V2, and the cycle recommences. It will be seen that ZA pulls up in the course of each mark and falls back on its termination, and a relay-chain A - - D is built up as follows :- ZA pulls up ... A energized. ZA falls back .. B energized in series with A. ZA pulls up ... A de-energized by its differential winding (ii). B held over (ii). C energized. ZA falls back .. B de-energized. ZA pulls up ... A energized. ZA falls back .. B energized in series with A. D energized and closes alarm circuit AB. If a mark is too short, relays Z, ZA are not energized. If a mark or space is too long, relay R is energized, restores the apparatus to normal, and itself falls back after an interval. The period of the condenser QA can be tested by a key TK. A shunt-field relay F closes the alarm circuit AB on failure of the filament circuit of either valve. Specification 221,316 is referred to in the Provisional Specification.
Patent GB-497411-A (GB)
Title: Method for obtaining new warp pile fabrics, in particular rugs and carpets
IPC: D03D39/00
Filed: 1937-03-10
Abstract: 497,411. Pile fabrics. LORTHIOISLEURENT & FILS. March 10, 1937, No. 7024. Void. Convention date, March 12, 1936. [Class 142 (iv)] Pile rugs and carpets have in addition to the usual pile warps A, binding warps C, D pulling warps B, and wefts 1, 2, 4, 5, &c. a fifth warp E forming with wefts 1, 3, 5, 7 &c. a complementary fabric. This is incorporated with the carpet &c. and take the place of the usual hair fabric interposed between the carpet and the floor. In a modification, two extra warps E, F, Fig. 2, are used. A dropbox loom may be used two wefts of different nature or size being inserted, one for the carpet proper, and the other for the complementary fabric.
Patent GB-478404-A (GB)
Title: Improvements in or relating to knitted fabrics
IPC: D04B1/18
Filed: 1937-03-10
Abstract: 478,404. Knitted fabrics. EVERLASTIC, Ltd. March 10, 1937, No. 7085. Convention date, Sept. 8, 1936. [Class 74 (ii)] A knitted fabric, plain or ribbed, embodies one or more thread bars 1 extending weft-wise to and fro between the knitted loops, each bar comprising a plurality of cores 2, which may be of elastic material (rubber), bound together in slightly spaced relation by binding threads 30 that extend around and between them, preferably in the form of a figure 8. The cores may be wrapped in opposite directions by cotton &c. threads 29 beneath the binding threads 30. In the case of a rib-fabric, tuck stitches may be formed in certain stitch courses which draw up the fabric on one face thereof to provide weft-wise extending ribs.
Patent GB-1426991-A (GB)
Title: Apparatus for preparing beverages
IPC: F25C5/10
Filed: 1974-02-15
Abstract: 1426991 Apparatus for preparing beverages INDUSTRIE A ZANUSSI SpA 15 Feb 1974 [16 Feb 1973] 7088/74 Heading C1C Demineralization of water for beverages (especially artificial mineral water) is carried out by fractional crystallization in an automatic household type machine. This machine comprises a demineralizing device having a refrigeration circuit with a principal and an auxiliary evaporator for the fractional crystallization of the fed-in water, a mineralizing device to introduce appropriate ions, and control means for automating the machine operation. It is characterized by comprising shower diffusion means for diffusion of the fed-in water on the outer surface of the principal evaporator, a tray to receive the fedin water and to collect the water dripping from said evaporator, recirculation means for water collected in said tray, shoot means to convey the ice (removed by heating] towards a container in which heating means are housed for melting the ice, siphoning means for transferring at leat a fraction of the melted water to said mineralization device and then to a storage tank equipped with controlled dispensing means.
Patent GB-739957-A (GB)
Title: Improvements in cleaning cloth with combined scraper and hang-up element
Inventor: KINGMAN BARCLAY ALDEN
IPC: A47L17/04
Filed: 1954-03-12
Abstract: 739,957. Cloths combined with scrapers. METAL TEXTILE CORPORATION. March 12, 1954, No. 7278/54. Class 19. [Also in Group VI] A flat cleaning cloth is provided near its edge with a metal eyelet having an outwardly extending flange 16 to serve'as a scraper. The cloth may be of woven, knitted or felted cloth or terry cloth coated with an abrasive filler or another form of pile fabric and a washer may be provided between the curved or rolled head 14 of the eyelet and the cloth.
Patent GB-213566-A (GB)
Title: Improvements in or relating to the driving gear of motor vehicles
IPC: B60K17/16
Filed: 1924-03-21
Abstract: 213,566. Siemens - Schuckertwerke Ges. March 29, 1923, [Convention date]. Axle structures.-The mesh of the bevel gearing 13 driving the axle is adjusted by means arranged near one end of the axle casing and so that adjustment can be made while the gear is running. One axle shaft 15 is provided with a double thrust bearing 20 which can be moved along the axle casing 17 to adjust the bevel gear by rotating a sleeve 25 screwed into the casing. When the gearing is adjusted the sleeve can be locked by tightening a split clamp 28. In a modification each of the axle shafts 15, 16 is provided with a single adjustable thrust bearing. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also a modification in which a fork, adjustable along the axle casing by means of a screw, engages between two thrust collars fixed on one of the axle shafts and so moves it axially. This subject-matter does not appear in the Specification as accepted.
Patent GB-1491139-A (GB)
Title: Simultaneous production of cyclohexanone oxime and concentrated ammonium sulphate solution
IPC: C07C239/00
Filed: 1975-02-21
Abstract: 1491139 Simultaneous production of cyclohexanone oxime and concentrated ammonium sulphate solution BASF AG 21 Feb 1975 [23 Feb 1974] 7308/75 Heading C2C [Also in Division Cl] The invention comprises a process for the simultaneous production of cyclohexanone oxime and a concentrated aqueous solution of ammonium sulphate by oximation of cyclohexanone with an aqueous solution of hydroxylammonium sulphate at a temperature above the melting point of cyclohexanone oxime with simultaneous neutralization with ammonia to a pH of from 1À5 to 6À0 of the sulphuric acid formed in the reaction, wherein the hydroxylammonium sulphate solution required for the reaction is concentrated by evaporation, prior to the reaction with cyclohexanone and with simultaneous or previous neutralization with ammonia to a pH of from 1À0 to 5À0, to such an extent that under the oximation conditions an ammonium sulphate solution is obtained which contains more than 30% by weight of ammonium sulphate. The oximation is preferably carried out at a temperature of from 60‹ to 90‹ C. and at a pH of from 3À0 to 5À0. The hydroxyl ammonium sulphate solution used as starting material may be formed by catalytic reduction of NO with hydrogen in H 2 SO 4 .
Patent GB-447630-A (GB)
Title: Improvements in or relating to free piston engine compressors
IPC: F01B9/04
Filed: 1935-03-08
Abstract: 447,630. Free-piston air compressors. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(Forschungsanstalt Prof. Junkers; Rosslau, Germany) March 8, 1935, No. 7323. [Class 8 (i)] In a free engine compressor the supply of fuel is regulated according to the output so that the piston stroke remains constant, and means are provided directly or indirectly dependent on the amount of compressed air or gas delivered or used, such means automatically and simultaneously modifying at least two or more of the factors governing the absorption of energy, such as the delivery or suction pressures of the main compressors or auxiliary chambers; thus the recoil energy for returning the free pistons remains constant. A free engine compressor 2 has its compressor cylinders 3 coupled by a pipe 11 to a delivery chamber 13, there being interposed a valve 12 which is adjustable in accordance with the required output. In a modification the suction pressure of a main compressor is modified by a sliding valve 22 in the inlet port 21, the valve being operated by piston 23 influenced by the pressure in the container 13. In an alternative form the delivery is modified by arranging compressed gases to re-enter the cylinder at the beginning of the compression stroke, a sliding valve 32 coupled by link 35 to a striker 34 on the rack mechanism being provided ; the striker contacts with a variable cam which is rotatable by a rod longitudinally movable by a piston influenced by the receiver pressure. The compressor volume may be modified by the movement of a piston 42 in a chamber 41 through rack-and-pinion gear 45, 46 which in turn is operated by a piston 47 influenced by the pressure in the container 13. In a similar manner the delivery pressure of the scavenging pump 60 may be modified. Scavenging air to the main piston cylinders 2 may be controlled by a slider 71 acting in conjunction with ports 70 and operated by piston 74 again influenced by the pressure in container 13. In another modification a buffer cylinder is provided and compression space therein is modified by a piston which is acted upon by the pressure in the container 13.
Patent GB-707188-A (GB)
Title: Improvements in or relating to a nozzle construction preventing corrosion of container nozzles
Inventor: SANFORD ELBERT A
IPC: B65D25/14
Filed: 1952-03-21
Abstract: 707,188. Preventing corrosion. PFAUDLER CO. March 21, 1952, No. 7344/52. Class 123(1) Outlet nozzles 17, e.g. of processing vessels 15 for acids or alkalis having a fused, internal coating 23, e.g. of ceramic, have a shield 24, 25 of thin corrosionresisting metal, e.g. tantalum, shaped to conform to a part of the inner wall of the nozzle and spaced therefrom, this space being sealed at 30, 31. The space is filled with a corrosion-resisting resin or silicate cement 26, e.g. an Alkor or Penchlor cement. Tantalum bolts 27 secure the shield to the vessel 15, a gasket 28 of corrosion-resisting material, e.g. Teflon, being interposed. The shield may extend over the vulnerable shoulder part 22 of the nozzle, as shown, or over the outlet part 20 which is welded to the inner part 19. The part 20 has a flange 21 which in this case is wholly or partly covered by the shield, which preferably extends below the weld. If desired, the two shields may be used together, either overlapping within the nozzle, or through the intermediary of a sleeve member of tantalum.
Patent GB-715539-A (GB)
Title: Improvements in or relating to non-return valves
Inventor: SPECK ERIC HARDY
IPC: F16K15/03
Filed: 1952-03-25
Abstract: 715,539. Valves. NORMALAIR, Ltd. March 3, 1953 [March 25, 1952], No. 7663/52. Class 135 A non-return flap valve comprises a casing a, Fig. 3; with opposed seats d, e and a flap member o pivoted on a frame l movable by a shaft k to permit the flap to engage either seat, or to an intermediate position allowing unrestricted flow through the casing in either direction. The bearings m, n, Fig. 4, in the frame have elongated holes for the axles p, q respectively, of the flap. The shaft k may be rotated by a lever v having a locating member co-operating with three abutments w on the casing, or by remote means, e.g. an electric actuator. Projections r, s limit pivotal movement of the flap. In another arrangement, the flap has spigots x, Fig. 16, engaging slots y in the frame, to further limit its movement.
Patent GB-194544-A (GB)
Title: Improvements in or relating to apparatus for washing clothes
IPC: D06F13/00
Filed: 1922-03-17
Abstract: 194,544. Arter, E. March 17, 1922. Washing-machines with rotary dollies or stirrers.-A frame for clamping to a wash tub to support a rotary dolly 10 comprises crossed members 1, 2 with clamping devices 5, 6 to permit adjustment for different sized tube. In the centre of the cross thus formed there is provided a hole 8 to give a loose bearing for the dolly spindle 9. One end of one of the cross bars may be pivoted to the tube to allow the frame to be swung back without being removed entirely from the tub. The frame may alternatively be in the form of a Y.
Patent GB-834161-A (GB)
Title: Improvements in the production of polyethylene
IPC: C08F10/00
Filed: 1958-03-12
Abstract: A polymerization catalyst comprises (1) a Group Ia, IIa, IIb or IIIb metal, (2) a Group Ia, IIa or IIIb alcoholate, and (3) a Group IVa-VIa chlorine-containing compound.  Preferred features are: (a) the said metal is Al, the said compound TiCl4 and use is made of an inert organic solvent, e.g. aliphatic, cycloaliphatic or aromatic hydrocarbons, as well as halogenated hydrocarbons, octane, cyclohexane, dimethylcyclohexane, decahydronaphthalene, benzene, toluene, xylene and tetrachloroethylene being specified; (b) the catalyst mixture is heated to 50-200 DEG  C. prior to polymerization; (c) dry hydrogen halide is led into the catalyst mixture, (d) the said alcoholate is Mg or Al ethylate or Na methylate.  Components also mentioned are: (1) Na, Mg, Zn, Cd, (2) Al, butyrate and octylate, (3) Cl3TiOEt, VCl4, CrO2Cl2.ALSO:Ethylene is polymerized (preferably at 70-130 DEG  C. and 10-150 atm. and in presence of an inert organic solvent) by means of a catalyst comprising: (a) a Group Ia, IIa, IIb or IIIb metal such as Al; (b) a Group Ia, IIa or IIIb alcoholate such as Na methylate or Mg or Al ethylate; (c) a Group IVa-VIa chlorine-containing compound such as TiCl4 (see Group III). The solvent is preferably octane or decahydronaphthalene, but cyclohexane, dimethylcyclohexane, benzene, toluene, xylene and tetrachloroethylene are also specified.  The polyethylene is isolated using water and/or dilute acids (e.g. oxalic acid) and/or alcohols, ethers and ketones.  In examples, the products have molecular weights of 40,000-215,000.
Patent GB-217340-A (GB)
Title: Improvements in or relating to locks and latches
IPC: E05C1/16
Filed: 1923-03-20
Abstract: 217,340. McCormick, W. A. March 20, 1923. Latches, sliding.- Relates to the type of mortise latch provided with a keyoperated blocking device in which the latch casing b, let into the face of the door, is of such a form and size as to be wholly covered by an ordinary rose, Fig. 4, so that the fixing screws P take into the full thickness of the door, the latch bolt e being inserted from the edge of the door and its stem r screwing into a socket s. The invention consists in assembling the whole of the latch operating and blocking mechanism in the casing b, the rose being provided with a keyhole to allow of the insertion of the key k to operate the blocking member g. The latch e which may ride on ball-bearings c, is urged outwards by a spring d secured to the casing h and arranged to extend for a part of its length along the casing b as shown in Fig. 1, so that as it is strained in its work, the strain is spread along a varying length of the spring.