baber/WOPTO huggingface dataset:
Patent GB-752109-A (GB)
Title: Process for concentrating kainite by means of flotation
IPC: B03D1/002
Filed: 1954-01-29
Abstract: A process for separating kainite from a mineral containing kainite and rock-salt comprises the froth flotation of the finely divided mineral suspended in an aqueous solution containing sufficient magnesium chloride, e.g. 20-40 per cent, to render the kainite substantially insoluble in the said aqueous solution. The suspension is preferably conditioned with a primary cationic long-chain amine salified by carboxylic acids, e.g. an alkylammonium acetate, and brought to flotation by the addition of amyl alcohol.
Patent GB-850030-A (GB)
Title: Improvements in and relating to the lubrication of internal combustion engines
Inventor: SMITH JAMES MILLAR
IPC: F01M1/10
Filed: 1958-01-28
Abstract: 850,030. Centrifugal separators. ENGLISH ELECTRIC CO. Ltd. Jan. 23, 1959 [Jan. 28, 1958], No. 2790/58. Class 23 [Also in Group XXXIV] In a lubricating system of an internal combustion engine, a centrifuging drum 4 is secured to the casing 3 of a vibration damper mounted on the end of a crankshaft 1. Oil is supplied by a pipe 5 and, after being centrifuged in the drum, purified oil runs over the inner edge 6 of the drum.
Patent GB-228570-A (GB)
Title: Improvements in telephone repeater systems
IPC: H04B1/58
Filed: 1925-01-31
Abstract: 228,570. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitats Ges.). Feb. 2,1924, [Convention date]. Repeating and amplifying systems.-In a twoway two-wire thermionic repeater system, back coupling is avoided without the use of balancing networks by coupling the anode circuit of each valve to the grid circuit of the other in such a way that, by means of a variable resistance W, the currents in the grid circuit due to the crosscoupling N1<SP>1> are made equal and opposite to those induced through the transformer V<2>. The crosscoupling may be inductive as shown or capacitative. Specifications 21069/11 and 180,700 are referred to.
Patent GB-1496522-A (GB)
Title: Keyboard
IPC: G06F3/02
Filed: 1974-01-22
Abstract: 1496522 Electronic keyboards C ENDFIELD and C J RAINEY 16 Jan 1975 [22 Jan 1974] 2915/74 Heading G4H An electronic keyboard device has five input keys L, R, M, &c. in a positional arrangement for each key to be operated by a respective one of the fingers of an operator's hand, a store ST1, ST2 for the individual outputs of the keys and logic means controlling the store so that, on completion of an operative stroke of a key or keys-combination, an output signal corresponding uniquely to that key or keys-combination is generated, each unique signal representing a given alphanumeric character or other keyboard function. An operative stroke is the acts of operating and then releasing a single key or the acts of operating the keys of a selected keys-combination (simultaneously or sequentially) and then releasing the operated keys, the stroke being completed when the or all the operated keys have been released, completion being the condition for the logic means to control the store. Each key may comprise a switch as in Fig. 4, or capacitive touch keys may be used. In the embodiment shown, depression of a key causes a transistor T1 to conduct, gates G1A and G1B being switched on and off; gate G2 changes state after a time determined by R1, C1 and its output to gate GX goes low so that a reset signal R to stores ST1, ST2 is removed. Data corresponding to operation of the keys is then stored in ST1, ST2. When all the keys have been released, the output from G2 goes high to cause GX to change state after a delay R2, C2 and produce reset signal R again. Alternatively, the circuit can be arranged so that keyed data is in store until the first key operation of the next entry. The store outputs L-SH are fed to the encoder, which may in turn be connected to a visual alphabetic display. Applications include use by the handicapped, use in computer terminals, telephone adaptors for the blind, and communication in noisy environments.
Patent GB-784423-A (GB)
Title: A method of and apparatus for wet-treating threads, particularly viscose rayon threads
IPC: D01D10/04
Filed: 1955-02-01
Abstract: <PICT:0784423/IV (a)/1> <PICT:0784423/IV (a)/2> In a method in which thread is fed in a path of flattened helicoidal form, each ascending portion is hydraulically separated from parallel ascending portions of thread and treatment liquid is fed, and excess liquid removed, at an at least single common point of each ascending portion of the thread so that portions above the common point are subjected to the action of the liquid fed thereto at this point and the portions below are subjected to the action of at least part of the excess liquid removed at such point and re-fed thereto.  As shown in Fig. 7, treating liquid is fed to pipes in a conduit 23 which feed the liquid to tanks 24.  The liquid is fed from the tanks by capillary action along rods 25 to a channelled plate 12 along which the thread is passed.  A series of tanks holding different treating liquids may be used to feed the channels.  Excess liquid is removed from the thread and fed to the channels by ridges 14 on the plate.  A scraper 26 also removes excess liquid and delivers it to the appropriate tank 24. Excess liquid leaving the plate is collected in a tank 28 connected to recovery channels.  As shown in Fig. 5, a viscose mixture is driven by a gear pump through a filter 2 to a spinneret 3 into a coagulating bath B.  The rayon fibre from the bath is stretched by passing it over driven glass rollers 4, 5 and then passed through a thread guide 8 and over rollers 9, 10 and 11. The axes of rollers 9 and 11 are askew and slightly inclined to the vertical.  The axis of roller 10 is parallel to the axis of roller 11.  To produce a series of helical windings initially, one end of the thread is secured to an elastic belt which is passed round rollers 9, 11 which are rotated to form a series of windings positioned by a rotatable toothed hackle. The thread is wound over rods 19, 191 mounted on eccentrics to hold the threads away from the channels of the plate during winding. After winding the rods are retracted so that the thread engages the series of ridges 14.  The plate may be heated by hot water or electrically. The treated thread is wound on a spinning box 30 or on to bobbins. The treating liquids may be such as are used for washing, desulphurizing, bleaching, dyeing, soaping, dressing or sizing. The hackle 21 may be replaced by oscillating thread guides and the hackle 26 by an upper ridge 14.  The plate may be movable away from the threads and the tanks 24 may be incorporated.
Patent GB-787985-A (GB)
Title: Machinery guard
IPC: F16P3/04
Filed: 1954-02-02
Abstract: 787,985. Machinery guards. BURY FELT MANUFACTURING CO., Ltd., and JEN. NINGS, F. May 2, 1955 [Feb. 2, 1954], No. 3026/54. Class 80 (4). A guard, particularly for a press or a felt guillotine, is associated with both an electrical and a mechanical interlock with the machine drive. As shown, a counterweight-opened guard 18 for an electric motor-driven guillotine knife 13 comprises sliding shutters 18b, 18c which are moved along guides 19 from an overlapping open position beneath a fixed shutter 18a to the closed position shown by a pair of arms 22 on a shaft 21 linked to a treadle 24. The electrical interlock comprises a limit switch 37 which is engaged by the arm 22 as the guard is closed and which releases a normally-engaged powerful auxiliary machine brake, while the mechanical interlock comprises a cam 26 on the guard-actuating shaft 21 coacting with an arm 16a on a hand starting lever 16 which operates the main brake and clutch. The cam 26 ensures that the lever 16 cannot be moved to start the machine until the guard is closed and that the guard cannot be opened until the lever is in the " off " position. A second cam 27 on the shaft 21 has a peripheral cut-out which co-operates with a roller on a bell-crank 30 adjustably linked to a clamp 36 which holds the felt while it is being cut and is moved simultaneously with the guard. In the guard-open position of shaft 21 the roller enters the cut-out in the cam 27 and the clamp 36 is raised by spring means. The cam 27 and its associated linkage may be duplicated at the other side of the machine. In a modification employing the same inter-locking devices the guard itself comprises a first shutter 55, Fig. 4, having an opening which may be covered by a second shutter 57 slidable thereon, the shutter 55 being swing- ably and slidably supported by rollers 59 in fixed guides. The two shutters are moved from the full-line open position to the chain-line closed position by an arm 63 on a shaft corresponding to the shaft 21 in Fig. 2, the arm 63 being secured to a link 62 one end of which is pivoted to the shutter 55 while the other end is linked to the shutter 57. A cable 53 carries counterweights for the shutters. It is stated that the guard may be in the form of a single pivoted shutter.
Patent GB-675796-A (GB)
Title: Improvements in the production of salicylic acid derivatives
Inventor: HOPFF HEINRICH
IPC: C07C51/15
Filed: 1950-02-07
Abstract: Salicylic acids substituted by alkyl, alkoxy, hydroxy or amino groups are obtained by the customary reaction between alkaline solution of the phenol, and carbon dioxide, performed continuously by pumping the reaction mixture through pressure vessels, preferably with the addition of oxidation-inhibitors, such as ascorbic acid.  Examples give the production of p-amino-salicylic acid, 2 - hydroxy - 4 - amino - 5 - methylbenzoic acid, and gentisic acid by this method, the acids being liberated by mineral acid; sodium hydrosulphite being used as oxidation inhibitor.
Patent GB-857266-A (GB)
Title: Device for producing a number of carrier frequencies, in particular for multichannel telephony
Inventor: VACHALA VLADIMIR
IPC: H01J31/06
Filed: 1958-01-30
Abstract: 857,266. Electron beam apparatus. TESLA, NARODNI PODNIK. Jan. 30, 1958, No. 3137/58. Class 39(1). In a device for producing a number of carrier frequencies, particularly for use in multichannel telephony, an electron beam, emitted by an axially-extendng cathode K, is rotated magnetically at a fundamental frequency over a screen S<SP>1</SP> arranged concentrically around the cathode and provided with rows of openings, each row lying opposite a corresponding anode A, so that a plurality of harmonics of the fundamental frequency are derived separately and simultaneously. The anodes are preferably screened from each other by grounded metallic rings ST. The electron beam emitted by the cathode over its entire length may have one or two wings and may be rotated by a magnetic field generated by means of a twophase coil system, Fig. 2, not shown. A regular impulse sequence is created on each anode the frequency of which is the product of the fundamental frequency and the number, n, of openings in the corresponding row of the screen S<SP>1</SP> for a single beam, and for a double beam if n is odd ; or half this product for a double beam if n is even. By suitably selecting the shape of the openings in the screen S<SP>1</SP> it is possible to obtain current waves of approximately sinusoidal or other desired form, e.g. trapezoidal.
Patent GB-304923-A (GB)
Title: A liquid preparation for cleaning internal combustion engines
IPC: C10L10/06
Filed: 1928-02-02
Abstract: 304,923. Mellors, J. W. Feb. 2, 1928. Cleansing-compositions for the cylinders &c. of internal combustion engines consist of 1-7 oz. of naphthalene and 0.5-3.5 oz. of sodium carbonate dissolved in 1 quart of petrol. According to the Provisional Specification 1 per cent of " Castrol " may be added.
Patent GB-1133717-A (GB)
Title: Improvements in spray guns operated by compressed air
IPC: E04F21/12
Filed: 1966-01-26
Abstract: 1,133,717. Spray-producers. W. A. SMITH. 18 Aug., 1966 [26 Jan., 1966], No. 3422/66. Heading B2F. A gun suitable for spraying sand &c. comprises a handle 10 supporting a trigger 28 adapted to actuate a first valve 50 which controls the flow of sand from a hopper 14 into a chamber 12 and a second valve 24 which controls the flow of compressed air through the handle into an air reservoir 48 within the chamber 12. A downwardly directed deflector plate 58 is located in the chamber 12 beneath the valve 50 and is arranged so as to direct the sand falling through the valve 50 towards the rectangular outlet of the reservoir 48 with a horizontal component of movement. The rectangular gun outlet may be adjusted by securing a pivoted valve 60 in a selected angular position. The valve 60 may be locked in its upper position, Fig. 3 (not shown) and the outlet provided with a nozzle extension (70) which is adjustably mounted so as to spray the sand in a selected direction with the gun upright. An adjustable stop 68 on the gun is designed to determine the extent to which the valve 50 &c. is opened.
Patent GB-1459712-A (GB)
Title: Paper making machine including apparatus for collecting waste material
IPC: D21F5/00
Filed: 1975-01-27
Abstract: 1459712 Reciprocating conveyers MEKANTRANSPORT AB 27 Jan 1975 [28 Jan 1974] 3464/75 Heading B8A [Also in Division D2] To collect waste material in a paper-making machine especially as shown in Fig. 1 in the drier section, a flexible web 3 is positioned beneath the machine wire 1 with a roller 4 attached to one end whereby the web can be wound up to discharge the waste, pulling means 5 being connected to the other end of the web for unwinding the web from the roller 4 and for maintaining tension in the web. As shown the web 3 may be supported by a plate 8 and guided around a roller 6 so that as the web is wound onto roller 4 waste is discharged into a bay 10. Means 13, including an eleetric motor 15, may be provided for making small lateral adjustments of the guide roller 6. The pulling means 5 preferably comprises a cross bar 16 guided in rails (18)-Fig. 4 (not shown)-and attached by wires 21 to a rotatable shaft 20 driven by a rotating field motor (19). The roller 4 may also be driven by an electric motor 12 in which case motors 12, (19) can be used to apply braking torques during unwinding and winding of the web 3 respectively.
Patent GB-197021-A (GB)
Title: Appliances for playing novel or improved table games
IPC: A63D15/00
Filed: 1922-02-07
Abstract: 197,021. Stephens, C. E. Feb. 7, 1922. Billiards, tables for.-A table whereon games are played with billiard balls and cues is formed with holes E through the bed of the table and with pockets B. Channels H beneath the table lead the balls from the 'holes to the sides cf the table. Divisions and baulks are marked on the table in the manner shown.
Patent GB-508878-A (GB)
Title: Rubber mudguards and methods and means for making the same
IPC: B62D25/16
Filed: 1938-02-04
Abstract: 508,878. Moulding rubber mudguards. DUNLOP RUBBER CO., Ltd., WILLSHAW, H., and NORCROSS, T. Feb. 4, 1938, No. 3518. [Class 87 (ii)] Two or more rubbe: mudguards 22 are moulded simultane ously by means of ar annular core member 21 and an annular mould member. A; shown, the mould member comprises annular parts 11 hav. ing tapered parts 28, 29 co-operating with tapered parts 26, 27 on the core. Recesses 33 to facilitate the opening of the mould, and spew boxes 30 are provided. The cores are provided with projections in the moulding cavity to divide the rubber into separate mudguards, and with straps 24 provided with central bosses for mounting the device rotatably. Projections 34 are provided on the mould parts to facilitate their manipulation. In a modification, the mould member comprises a number of segmental sections pressed radially against the core and arranged between upper and lower ring members. The upper ring member has a tapered flange co-operating with inclined outer surfaces of the segments.
Patent GB-211471-A (GB)
Title: Improvements in collapsible rafts
IPC: B63C9/04
Filed: 1924-02-11
Abstract: 211,471. Frank, G. Feb. 19, 1923, [Convention date]. No Patent granted (Sealing fee not paid). Rafts.-A collapsable raft designed for lifesaving purposes comprises an annulus a which may be inflated by a bottle of compressed gas applied to a suitable valve. The annulus carries stays i mounted on plates k. A bulwark h of sail cloth is supported bv the stays. Beneath the annulus are hinged depending ribs c which are hinged to a central plate e and a waterproof covering d is stretched over the ribs and clamped between the plates e, 5.
Patent GB-138650-A (GB)
Title: Improvements in or relating to processes for the manufacture of sulpho-aromatic agents for the hydrolysis of fatty acid glycerides
IPC: C11C1/04
Filed: 1920-02-06
Abstract: The production of a sulpho-fatty-aromatic reagent for the hydrolysis of fatty acid glycerides, as described in Specification 4741/98, is effected by sulphonating at a low temperature the mixture of fatty acid and aromatic body dissolved in a solvent, such as benzine, in which both the fatty acid and aromatic substance dissolve and which is unacted upon by the sulphuric acid used.  The product is washed with dilute sulphuric acid to remove aromatic sulphonic acid, then with water which dissolves the reagent, while the unchanged fatty acid and aromatic body remain in the solvent and can be re-sulphonated.  The Specification as open to inspection under Sect. 91 (3) (a) describes the preparation of the reagent from naphthalene and oleic acid, using benzene as the solvent and at a sulphonation temperature of 5 DEG  C.  After the hydrolysis treatment, the reagent is precipitated from the first water by barium or calcium carbonate, the salt obtained being converted by sulphuric acid into the free acid for re-use.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1078268-A (GB)
Title: Film cassette, more especially for a cine camera, and camera for use therewith
IPC: G03B17/26
Filed: 1966-01-27
Abstract: 1,078,268. Cine and roll-film cassettes. AGFA-GEVAERT A. G. Jan. 27, 1966 [Feb. 2, 1965], No.3708/66. Headings G2A and G2E. A cine or roll-film cassette 1 has a projection 12 formed with a series of steps of different heights, each step corresponding to a different camera function and being sensed by a separate mechanical feeler when the cassette is loaded into the camera. The camera functions, controlled by the feelers, may be a frame counter, film sensitivity in an exposure regulating device, a tape-recording device, and a pivoting colour filter. Projection 12 also forms a cassette positioning stop with projection 11.
Patent GB-680753-A (GB)
Title: A method of and means for feeding and positioning articles
IPC: B65G47/24
Filed: 1951-02-16
Abstract: 680,753. Feeding articles in predetermined attitude. TIMKEN ROLLER BEARING CO. Feb. 16, 1951 [Nov. 13. 1950] No. 3763/51. Class 117 Articles having unlike front and back faces are aligned with like faces in abutment by forcibly advancing the articles in single file with like faces uppermost, shifting successive articles laterally in alternately opposite directions during such advancement and then aligning the articles with their like faces in contact. As shown, taper-roller bearing cups A each having a tapered bore 2 and a chamfered back face coming all in the same disposition from a previous working operation, are aligned in back-to-back, front-to-front relationship for presentation to a grinding wheel D by being advanced along a vibrating-feed conveyer channel 1, 3 on to a laterally divergent platform 4 having side rails 6 and a central upwardly inclined ridge 5. The platform 4 widens from cup width at its intake end to slightly less than twice cup width at its discharge end where two shoots 7 are arranged one at each side of the platform. The shoots 7 meet in a common exit shoot 9 dimensioned to allow the cups to roll therealong on edge. In operation, the cups, urged on from behind, ride up on the platform ridge 5 and successive cups slide in alternately opposite directions against the rails 6, the increasing slope of the sides of the platform 4 causing the cups to tilt almost on edge before sliding into the relevant shoot 7. Since the cups remain in single file, the time lag between successive cups entering their respective shoot 7 is such that the cups preserve the same order in the exit shoot 9 so that successive cups face in opposite directions when in the shoot 9. Axial displacement of the cups, as they leave the shoot 9, on to a conveyer 10 arranged transversely of the shoot 9, aligns the cups with their like faces in abutment.
Patent GB-686286-A (GB)
Title: Phase changer
IPC: H01P3/10
Filed: 1951-02-16
Abstract: 686,286. Phase changers for high-frequency transmission lines. STANDARD TELEPHONES & CABLES, Ltd. Feb. 16, 1951 [May 20, 1950], No. 3816/51. Class 40 (viii). A phase changer for use with a guide line which propagates high - frequency energy through an electromagnetic field formed about the line, comprises one or more conductor sections, of greater cross-section than the line, disposed about the latter at positions spaced thereon and variable in size. As shown, the sections are formed from two engaging flanged discs 4 and 5, the first being attached to line 1 and the second to a diaphragm 9 carried by a dielectric cylinder 8. The latter has tapered end-pieces 12 which slide on line 1, and include a liquid-tight gland 11 so that a liquid dielectric may be maintained in tube 8. In an alternative construction the movable parts may be mounted on a rod moved within conductor 1 by a solenoid or by a control knob extending through a slot. The adjustable sections may also be formed as metal bellows. Specifications 676,947 and 683,352 are referred to.
Patent GB-432908-A (GB)
Title: Improvements in apparatus for refuelling aircraft in the air
IPC: B64D39/00
Filed: 1934-02-06
Abstract: 432,908. Refuelling aircraft in flight. COBHAM, SIR A. J., and COBHAM AVIATION, Ltd., A., Grand Buildings, Trafalgar Square, London. Feb. 6, 1934, No. 3851. [Class 4] Means for refuelling aircraft in flight comprises a cord 12 or the like, which is trailed beneath the supply or receiving aircraft and weighted by means of a bag 13 containing liquid which breaks and discharges its contents in the event of its catching in some vulnerable part of the other aircraft. In one form, the cord is trailed from the supply aircraft 10, is picked up by the receiving aircraft 11, passed through a guide 14 and allowed to trail below the aircraft 11 after a fuel pipe 15 attached to the upper end of the cord has been pulled across by the operator. The tail plane of the lower machine may be guarded by a deflector rod or cable. In a modification, the cord 12, Fig. 5, is trailed from a cockpit 16 at the tail end of an air liner 11 and is picked up by the supply aircraft 10 which then manoeuvres into a position above and slightly to the rear of the air liner 11 whereupon a pipe line is drawn across by the crew of the air liner. The bag is constituted by a rubber balloon filled with water and may be made of thin silk fabric, thin glass, or celluloid.
Patent GB-509720-A (GB)
Title: Improvements in and relating to carpet sweepers
IPC: A47L11/33
Filed: 1938-02-08
Abstract: 509,720. Carpet-sweepers. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., and WATERS, S. L. Feb. 8, 1938, No. 3879. [Class 138 (i)] In a carpet-sweeper of the kind having, at each end, a single V-shaped spring e for holding the pans d closed, means for opening the pans consists of a lever f pivoted within the casing a and engaging the spring, and a camlever i engaging the lever f and projecting from the casing. The lever f has a flange f<1> with a slot f<2> in which the apex of the spring is supported,' and a channel h in which the horizontal part of the lever i engages. An abutment j is arranged near the finger-piece i' of the lever i to facilitate operation of the latter, and the pans are locked in open position by engagement of the lever i with a depression h'. An actuating means may be provided at each end of the casing.