baber/WOPTO huggingface dataset:
Patent GB-1070383-A (GB)
Title: Improvements in or relating to metal protecting preparations
Inventor: FORD IAN ALASTAIR MONCRIEFF
IPC: C11D3/34
Filed: 1963-06-25
Abstract: An ester of a mercapto carboxylic acid derived from an alcohol having at least 12 carbon atoms, e.g. stearyl mercaptopropionate and stearyl, lauryl or iso-octyl thioglycollate, is used to prevent tarnishing of copper, silver or nickel.  In an example, a liquid polish consists of (by weight) polishing powder (diatomaceous earth) 20%, ethyl alcohol 20%, stearyl glycollate 2.5%, phosphoric acid 0.2%, water up to 100%.  Bentonite (2 to 4%) may be added and acetic or hydrochloric acid may be used instead of phosphoric acid.  The polish may also be in the form of a paste, powder, block or impregnated fabric.ALSO:An ester of a mercapto carboxylic acid derived from an aliphatic alcohol having at least 12 carbon atoms, e.g. stearyl, lauryl or iso octyl thioglycollate and stearyl mercaptopropionate is used to prevent tarnishing of silver, nickel or copper.  The ester may be added to a pickling, detarnishing, brightening, de-scaling or etching bath.  In an example, the solution contains (by weight) 3 stearyl thioglycollate, 3 ethoxylated fatty alcohol, 0.2 phosphoric acid, 94 water. Acetic or hydrochloric acid may be used instead of phosphoric acid as a stabilizer.
Patent GB-617283-A (GB)
Title: Improvements in rotating wing aircraft
IPC: B64C27/00
Filed: 1946-08-23
Abstract: 617,283. Helicopters. BELL AIRCRAFT CORPORATION. Aug. 23, 1946, No. 25267. Convention date, April 5, 1946. [Class 4] A helicopter rotor comprising one or a pair of blades is mounted for pivotal movement relatively to the drive shaft to provide a control axis disposed less than 90 degrees rearwardly of the blade longitudinal axis. As shown in Fig. 1, a two-bladed rotor 10, 12 is universally mounted at the end of a drive shaft 20 by gimbal rings 14, 18, flapping of the blades being limited by a stop 24 against which the outer ring 14 may bear. The stop is located at an angle of less than 90 degrees rearwardly of the longitudinal axis of the blade 10. A similar stop may be provided rearwardly of the blade 12. In the modification according to Fig. 4, the outer gimbal ring is connected to a pilot's control member 60 by arms 40, 44 mounted rearwardly of the blade- 10. In a further modification, the hub is directly mounted on the drive shaft by means of a cross-pin in the plane of the rotor and inclined to the blade axis (Fig. 6, not shown). Stabilizing masses m1, m2, or 31, 32, may be mounted on arms disposed perpendicular to the blade axes. Specifications 580,231 and 600,013 are referred to.
Patent GB-361864-A (GB)
Title: Improvements in tobacco pipe cleaners
IPC: A24F9/06
Filed: 1930-08-25
Abstract: A pipe cleaner consists of a brush comprising a stem of ductile material and radial fibres gradually increasing in length from one end of the stem to the other.
Patent GB-311165-A (GB)
Title: Preparation of charges for use in internal combustion engines
IPC: F02M1/00
Filed: 1928-09-04
Abstract: 311,165. John, A. S. Sept. 4, 1928. S p r a y carburettors. - The charge is mixed by air admitted from the atmosphere to an enclosed space encircling the mixture chamber, whence it flows through tangential passages to said chamber within which is mounted a tube serving to divert the air longitudinally thereof. As shown in Fig. 7, a ring 16 provided with an annular groove 3, to which air is admitted at 6, is mounted around the carburettor body 13 which is provided with tangential passages 4 opening into an annular space 17 around the tube 7. The admission of air through the bore 6 may be controlled by a manually-operated valve which may be operated from a distance.
Patent GB-1507182-A (GB)
Title: Erasable thermo-optic storage display of a transmitted image
IPC: C09K19/12
Filed: 1975-06-13
Abstract: 1507182 Liquid crystal compositions THOMSON-CSF 13 June 1975 [14 June 1974] 25452/75 Heading C4X [Also in Division G2] A liquid crystal composition with a low temperature smectic phase and a higher temperature nematic phase comprises 4-octyl-diphenyl-4'-nitrile and 4<SP>1</SP>-octyloxy-diphenyl-4<SP>1</SP>-nitrile. It may be used to record light scattering images using electric fields and a scanning laser beam (see Divisions G2 and G3).
Patent GB-1401217-A (GB)
Title: Process of heating cooking fluid
IPC: A23L5/10
Filed: 1972-09-06
Abstract: 1401217 Cooking process FRYMASTER CORP 6 Sept 1972 [4 Feb 1972] 25585/74 Divided out of 1401216 Heading A4D The subject matter of the Specification is contained in Specification 1401216, but the claims relate to a cooking process.
Patent GB-1237834-A (GB)
Title: Method of operating a polyphase electric furnace
Inventor: IBACH WERNER
IPC: G05F1/14
Filed: 1969-05-20
Abstract: 1,237,834. Automatic power control of electric furnaces. KNAPSACK A. G. May 20, 1969 [May 31, 1968], No.25600/69. Heading G3R. A polyphase electric furnace such as a three phase reduction furnace is operated at a constant power input with the electrode currents maintained at equal values, the latter condition being achieved by varying the voltages between the electrodes upon the occurrence of dissymmetries in the charge resistance. In the described embodiment the electrodes 1, 2, 3 are supplied from transformers 7, 8, 9 controlled by members 4, 5, 6 of the control system shown in Fig. 2 which varies the voltage associated with the pair of electrodes having the least difference in current, for example the transformer 7 if the current difference between electrodes 1 and 2 is less than the current difference between electrodes 1 and 3. Members A---E are known controllers which function as follows: - (1) Controller A compares actual power Wa with desired power Wd to determine the output signal from controller B. (2) Controller B receives a signal Id representative of desired electrode current, which signal is varied by the output signal from controller A to produce a corresponding desired current signal I'd. (3) Controllers C 1  C 2  C 3  compare the actual current through each electrode with the desired current signal I'd, the outputs of these controllers each being applied to the pair of the members 4, 5, 6 associated with the corresponding electrode e.g. C 1  supplies members 4, 6 associated with electrode 1. (4) Controllers D 1  D 2  D 3  compare the actual electrode currents to derive corresponding difference signals each of which is supplied to an appropriate pair of the controllers E 1 E 2 E 3  (5) Controllers E 1  E 2  E 3  compare the pairs of current difference signals and control appropriate pairs of the members 4, 5, 6 to determine which of these members is to respond to an adjusting instruction produced by a corresponding controller C 1  C 2  C 3 , this determination being based upon the criterion of least current difference already defined.
Patent GB-340206-A (GB)
Title: Improvements in or relating to permanent magnets
IPC: H04R9/02
Filed: 1929-08-22
Abstract: 340,206. Making magnets. SWIFT LEVICK & SONS, Ltd., HORSBURGH, G. D. L. and LEVICK, H. S., Clarence Steel Works, and DARWINS, Ltd., Fitzwilliam Works, Templeborough, both in Sheffield. Aug. 22, 1929, No. 25616. [Classes 83 (ii) and 83 (iii).] Cutters.-A permanent magnet, particularly for sound reproducing and transmitting apparatus of the kind in which a diaphragm is connected to a coil situated in a magnetic field, is made by casting a block of magnet steel in the form of one or more loop-like limbs extending outwardly from the base and crown of a body portion, forming the block with either an interrupted or continuous gap around the crown by a trepanning or similar operation, and hardening and finally magnetizing the block. The magnet steel used is preferably one containing 9 per cent-35 per cent of cobalt. Figs 3, 4 are respectively a plan and a section on the line 4-4 of Fig. 3 of a magnet after the gap B has been cut. The ends of the limbs A adjacent the crown A<2> are preferably joined by webs a<2> so that the gap B is continuous and the flux is substantially uniform. In the case of a magnet with a single limb, Fig. 6, the limb is integral with a portion a <2x> which surrounds the gap B. The gap, the width of which will not generally exceed two millimetres, may be cut by the tool shown in Figs. 8, 9. The tool comprises a number of cutters e mounted in a head E and the cutters are slightly less in width than the gap. The cutting edges e<1> of alternate cutters are on opposite sides as shown in Fig. 9 and the depth of the cutters is such that at all times there is a clearance between the top of the cast metal block and the head E to assist in clearing the tool of turnings. The Provisional Specification describes also a method of forming the air gap which consists in placing a short tube of brass, asbestos &c. in the casting mould at the place where the air gap will come so as to leave a soft annullus which can be trepanned easily.
Patent GB-874992-A (GB)
Title: Improvements in or relating to aircraft gyromagnetic compasses
Inventor: HOPKIN HYWEL RAYMOND
IPC: G01C19/36
Filed: 1958-08-08
Abstract: 874,992. Gyroscopic apparatus. AVIATION, MINISTER OF. July 28, 1959 [Aug. 8, 1958], No. 25630/58. Class 97(3) An aircraft gyromagnetic compass comprising an azimuth gyroscope 12 and a magnetic element 11, both of which feed signals to an amplifier 13 actuating a precession motor 14 to maintain the gyroscope 12 and magnetic element 11 in correspondence, has a stabilizing signal fed into the amplifier 13 which is a function of the rate of turn of the aircraft. The stabilizing signal may be derived from a rate of turn gyroscope 15 or from an angular accelerometer providing a signal which is integrated or phase lagged. Alternatively since an aircraft is normally steered by executing banked turns, the bank angle being propor- ' tional to the rate of turn, the stabilizing signal may be representative of the bank angle. Where an automatic pilot is used, turns being initiated by tilting a platform through an angle equal to the desired bank angle, a pick off measuring the tilt of the platform may supply the stabilizing signal, or where steering signals are derived from other sources, such as a bomb aiming system, the steering signals may be used as the stabilizing signal. The stabilizing signal is a function not only of the rate of turn but also of one or more of the following, namely magnitude and direction of the resultant earth magnetic field, aircraft heading, true airspeed and of monitoring time constants within the compass and any associated equipment.
Patent GB-1425862-A (GB)
Title: Pneumatic tyres
IPC: B60C9/18
Filed: 1973-05-30
Abstract: 1425862 Pneumatic tyres DUNLOP Ltd 30 May 1973 [6 June 1972] 25743/73 Heading B7C  In a pneumatic tyre having a breaker assembly which comprises one or more plies 2 of cord fabric and has its lateral edges folded axially inwardly in the shoulder regions of the tyre to define two pockets disposed symmetrically on either side of the tyre mid-circumferential plane M, each pocket contains a substantially inextensible flexible ring 3, 4 extending circumferentially around the tyre and disposed within a moulded rubber body 5, 6 shpaed to substantially fill the pocket. Each ring may be formed from steel, aluminium or brass wire, e.g. from several wires stranded together, or from carbon or polyamide fibre or fibre glass. The tyre may have a steel cord radial carcass.
Patent GB-1532874-A (GB)
Title: Paper or the like perforating devices
IPC: B26F1/36
Filed: 1977-06-21
Abstract: 1532874 Punching machines KERSHAW & ROCHE Ltd 21 June 1977 [22 June 1976] 25772/76 Heading B4B A perforating device of the type in which one or more punches are actuated by a lever handle comprises a base moulded from a plastics material and having at least one metal insert 24 embedded therein, the or each insert providing a die aperture for co-operation with a respective punch member of the device.
Patent GB-702896-A (GB)
Title: An improved self-supporting adjustable and movable screen for protection against sunor wind
IPC: A45B23/00
Filed: 1952-10-14
Abstract: 702,896. Awnings. EGGER, F. Oct. 14, 1952, No. 25778/52. Class 20 (1) A self-supporting adjustable and movable screen 27 for protection against sun and wind comprises a blind roller 19 rotatably mounted on a horizontal support 2, and a blind bar 26 which is movable parallel to the roller by toggle lever arms 21, 22. The support 2 can pivot about a horizontal axis at its centre at the upper end of a vertical post 1 having a heavy base 4. The height of the post may be adjusted and the post and support are locked in their adjusted positions.
Patent GB-1191349-A (GB)
Title: Apparatus for Handling Sheets
IPC: B65H3/32
Filed: 1967-06-05
Abstract: 1,191,349. Feeding sheets. DEAN RESEARCH CORP. 5 June, 1967 [6 July, 1966], No. 25787/67. Heading B8R. Batches of sheets 41, Fig. 12, are separated from a horizontal pile 30, Fig. 12, or a vertical pile, Fig. 3, by a head 1, Figs. 1, 3, 7, 10, 12, comprising two knives 12, one of which is inserted into the pile, e.g. between two batchdefining tabs, and the other of which is closed on to the piles. The head comprises a disc 13 carrying a short projecting tube 16 through which suction is applied to the head, and the knives in being moved together engage the tube and rotate the disc as necessary. The head can be pivoted horizontally, Fig. 1, to reverse the stack, and can be raised by cables 3, 4 and transported along a rail 6. The batch can be deposited in a swingable part 59 of a conveyer, or released on to a table 34, which is then lowered into alignment with a pusher which transfers it on to a surface 39 along or by which it is moved to a working position. The table 34 and surface 39 are provided with air jet openings 40 to support the batch on an air cushion. An elevator 33 is indexed to raise the pile to the height of the table 34.
Patent GB-972540-A (GB)
Title: Improvements in or relating to separating machines
Inventor: BATES DICK DOWDELL
IPC: B07B9/00
Filed: 1962-07-05
Abstract: 972,540. Separating granular material. COLMAN & CO. (AGRICULTURAL) Ltd. Oct. 7, 1963 [July 5, 1962], No. 25801/62. Heading B2H. Granular material is first directed on to the external surface of a rotary screen drum 4 which causes the chaff or large particles to be carried upwardly and away by the drum surface and allows the small particles to pass through for further separation, which is effected by directing the particles transversely into an air stream moving in an inclined upward direction so that dense particles will pass through the air stream and discharge at 12 while the less dense particles are carried by the air until they fall out into one or more outlets 16, 17. The material is fed to the drum by a hopper 1 which, if desired, is provided with a metering wheel 2. Material separated-out at this stage is carried by the drum surface to an outlet 7. The air stream is created by a fan 14 which draws in air at the opening 12 and discharges it into a cyclone 20 which separates out the dust. The outlets 16, 17 for the particles falling out of the air stream are provided with adjustable baffle-plates 18, 19 and screw conveyers 23, 24. Differential air pressures may be employed to assist the passage of material through the drum and prevent chaff from clogging the drum surface. According to the Provisional Specification, the screen drum may also be vibrated.
Patent GB-1334452-A (GB)
Title: Production of ethylene glycol teraphthalic acid esters
IPC: C08G63/78
Filed: 1971-04-19
Abstract: 1334452 Ethylene glycol terephthalic acid esters FMC CORP 19 April 1971 [1 April 1970] 25815/71 Heading C2C A light-coloured ethylene glycol terephthalic acid ester is produced from a grade of terephthalic acid which ordinarily will produce a dark coloured ester by a process comprising esterifying the terephthalic acid with at least 8 times its weight of ethylene glycol at 160-200‹ C. for a sufficient time to obtain the desired ester in solution in the excess glycol and at some time during or after the course of esterification, hydrogenating the reaction mixture at up to 200‹ C. and at an elevated pressure in the presence of a hydrogenation catalyst for a time to reduce the level of colour forming impurities to not more than 103 p.p.m., separating the catalyst from the reaction mixture and vacuum stripping excess glycol from the ester. The principal colour forming impurity is 4-carboxybenzaldehyde which is generally present in the starting material in an amount of from 2000- 5000 p.p.m. Suitable catalysts are palladium, noble metals and finely divided nickel. The produced bis-(ethylene glycol) terephthalate may be polymerized to produce white polyesters for use in fibre and film production.
Patent GB-795660-A (GB)
Title: Improvements in and relating to buttons
IPC: A44B1/28
Filed: 1953-09-19
Abstract: 795,660. Buttons. HUTTON, V. W. Sept. 20, 1954 [Sept. 19, 1953], No. 25892/53. Class 43 A two-part button comprises a button head 1 with an apertured boss 2 of a softenable plastic, and a headed pin or stud 4 with a shank 5 which is a close fit within the aperture 3 of the boss, so that by effecting a temporary softening of the plasticcomprising the inside wall of the aperture and allowing it to set upon the inserted shank it becomes firmly adhered to the shank. In applying the button to a garment or fabric the shank 5 of the stud is inserted through the material, the aperture 3 of the boss on the button is engaged over the shank, and pressure exerted on the head 6 of the shank so that the material of the garment is gripped firmly between the rear face of the boss and the head 6. The shank 5 of the stud 4 is then heated, e.g. by applying a heated smoothing-iron to the head 6 whereby the plastic immediately surrounding the shank is softened by heat conducted from the head and enters into intimate contact with the surface of the shank so that, after cooling, the plastic is firmly adhered to the shank. Alternatively the inside wall of the aperture 3 in the plastic boss 2 may be softened by injecting a solvent or plasticizer into the aperture prior to the insertion of the shank therein, so that the surface of the latter is closely engaged by the plastic and, upon evaporation of the solvent or plasticizer, is firmly adhered thereto. The adherence may be increased by providing the shank 5 with transverse ribs 7 or screwthreads.
Patent GB-758073-A (GB)
Title: A device for rolling material, especially metallic material
IPC: B21B13/20
Filed: 1954-09-07
Abstract: 758,073. Rolling. PLATZER, F. Sept. 7, 1954 [Sept. 18, 1953], No. 25928/54. Addition to 717,203. Class 83 (4). In a rolling mill according to the parent Specification in which the material is rolled between pairs of rolls which are successively pulled along the material and backing rolls are guided along stationary converging tracks, the working and backing rolls are swingably or rotatably mounted on cages rotatable about the stationary tracks and the amount of swing or rotation is controlled so that the upper and lower rolls lie in a common plane perpendicular to the direction of rolling while the rolls are effecting the deformation. The working rolls 17, Fig. 2, and backing rolls 26 are pivotally mounted in roller cages 35 which rotate about fixed supports 20, 21 carrying the converging tracks 23, 24 for the backing rolls 26. Each working roll 17, Fig. 5, is carried by a pair of arms 37 keyed on a shaft 40 in the cages 35 and each backing roll is carried by a pair of links 44 pivoted at 48 on arms 42 also keyed to the shaft 40. Arms 50 keyed to the shaft 40 carry rollers 51 which engage cam tracks 55 so shaped that the shaft 40 is rotated while the rolls are effecting deformation to maintain the rolls in a common vertical plane perpendicular to the direction of rolling. Springs 53 (not shown) maintain the rolls in engagement with the converging tracks 23, 24. For adjusting the roll gap the lower support member 21 has a guide element 56 carrying the track 24 which is vertically adjustable by wedges 57 actuated by screw spindles 59 from each side. The cages 35 have ring gears 62 at the peripheries in mesh with each other and driven from pinions 63. The material is fed intermittently by rolls 66 which feed the material forward between the successive engagements by the rolls which are wider apart than the length of engagement of the rolls with the material. In another embodiment, housings 72, Fig. 9, for the journals of the working rolls 68 and backing rolls 70 are mounted in a common body 73a supported on trunnions 77 in roll cages 80. The bodies 73a are maintained vertical throughout the complete rotation of the cages 80 by planetary gears 81 engaging rings 85 which are driven at a required different speed to that of the cages 80. During the working stroke the backing rolls engage the converging tracks 94, 95 and are maintained in engagement therewith by springs, not shown, between the housings 72 and the common body 73a. The devices may be used for hot or cold rolling and the rolls may be adapted for rolling profiled or round rods.
Patent GB-1395512-A (GB)
Title: Communications system
IPC: H04J3/06
Filed: 1972-08-02
Abstract: 1395512 Satellite communication systems POST OFFICE 2 Aug 1972 [11 Aug 1971] 25956/73 Divided out of 1395511 Heading H4L The description is substantially the same as that of the parent Specification 1,395,511, but the claims relate to automatic entry to the T.D.M.A. system and burst synchronizing.
Patent GB-518971-A (GB)
Title: Improvements in or relating to means for feeding sound record and other films
Inventor: LEHMBERG HEINZ
IPC: G03B31/00
Filed: 1938-09-05
Abstract: 518,971. Cinematograph apparatus. TOBISTONBILD SYNDIKAT AKT.-GES. Sept. 5, 1938, No: 25965. Convention date; Sept. 3; 1937. [Classes 97 (i) and 98 (ii)] Apparatus for feeding a sound record or other film 7 comprises a smooth feeding roller 3 cooperating with a pressure roller 4 and located between two sprockets 8, 9 spaced from it sufficiently to enable the film to form a free loop between each sprocket and the roller. The loops by change of their form alter.the curvature of the film around the feeding roller and thereby automatically maintain a constant rate of feed, which is independent of any shrinkage of the film, and the provision of loops in front of and behind the feed roller substantially balances the forces due to them so that only light pressure is necessary for feeding the film. In the film carrying apparatus shown, a negative film 1 is fed over the roller 3 by sprockets 2, 6, and is tensioned by a movable roller 5. The negative film 7 is driven by contact with the negative film, and according to the varying shrinkage which has occurred in the latter the loops iri the film 7 take up forms represented by the dotted, full, and chain-dotted lines. Thus, when the shrinkage is great, the film 1 drives the film 7 more slowly, so that the loop between the roller 3 and sprocket 8 increases and the film 7 takes the chain-line form with a convex curvature to the feed roller, causing it to be driven at a higher speed relatively to the film 1. When the shrinkage of the film 1 is less it tends to drive the film 7 at greater speed, which causes the latter to take a form such as that shown in full or dotted lines, which is less concave or is convex towards the feed roller, so that it is driven at a lower speed relatively to the film 1. The speed of the film 7 is thus maintained constant irrespective of variations in the speed of the film 1 due to variable shrinkage in it Guides 10 for the loops and indications showing the shape of the loop to be formed when inserting the film, may be provided.
Patent GB-1137688-A (GB)
Title: Silicon-containing organo-boron compounds
IPC: C07F7/08
Filed: 1966-06-10
Abstract: 1,137,688. Di-(alkali metal) carboranes. OLIN MATHIESON CHEMICAL CORP. 10 June, 1966, [21 June, 1965] No. 25987/66. Heading C2C. [Also in Division C3] A di-(alkali metal) derivative of a m-carborane or p-carborane of formula HCB 10 H 8 RR<SP>1</SP>CH, wherein R and R<SP>1</SP> are each hydrogen or C 1-5  alkyl is prepared by reacting the carborane with an alkali metal alkyl or an alkali metal aryl compound. In an example dilithio-m-carborane is prepared by reacting m-carborane with butyl lithium.