baber/WOPTO huggingface dataset:
Patent GB-1478404-A (GB)
Title: Tractor roller assemblies for track laying vehicles
IPC: F16C13/02
Filed: 1974-09-13
Abstract: 1478404 Track rollers CATERPILLAR TRACTOR CO 13 Sept 1974 [17 Sept 1973] 40100/74 Heading B7H A track roller assembly comprises a shaft 4 supported by a mounting bracket 8 and a pin 23 inserted in aligned bores 24 of the shaft and bracket which pin prevents separation of the shaft and bracket before they are mounted on the track frame 6. The shaft is seated in a part circular notch of the bracket and the bores are arranged such that, after insertion of the pin, the inner edge 26 of the notch prevents separation movement of the shaft. The bores extend along an axis at approximately 30 to the vertical. Bolts 7 for mounting the bracket on the track frame are retained prior to this mounting by retainers 28 situated in recesses 29 about the bolt holes as described in Specification 1,478,405.
Patent GB-1581397-A (GB)
Title: Fuse clips
IPC: H01H85/22
Filed: 1977-09-27
Abstract: The contact spring clip (10) is produced from a single piece of electrically conductive material. The contact spring clip essentially consists of a U-profile formed from two limb sections (18, 19) and a yoke section (9). A winding connecting leg (11) and a fastening leg (22) extend from the yoke section in a direction opposite to the limb sections. The winding connecting leg and the fastening leg have integrally formed locking lugs (13) which retain the contact spring clip after the legs have been plugged through bores in a mounting plate (40). The thickness of the starting material for producing the contact spring clip is selected so as to produce a winding connecting leg which is sufficiently stable for winding terminals. In order to limit the spring force exerted on the contact of the fuse (41) by the limb sections, the material thickness is reduced at the bending points (14) between the yoke section and the limb sections. Such contact spring clips (10) are to be encountered in retaining devices in which a plurality of fuses (41) can be used. In this case, it is possible to apply fuses which have a member (44, 46) for indicating whether the fuse has blown or not. The retaining device is appropriately constructed (47, 49). <IMAGE>
Patent GB-1109580-A (GB)
Title: Improvements relating to sliding door assemblies
Inventor: PICKFORD JOHN
IPC: E06B9/06
Filed: 1966-09-08
Abstract: 1,109,580. Collapsible sliding doors. DAVID T. PICKETT & SONS (ENGINEERS) Ltd. 10 Feb., 1967 [8 Sept., 1966], No. 40135/66. Heading E1J. In a collapsible sliding door assembly including a lattice built up from lattice bars 12, 12' guided to function in lazy-tongs fashion, the ends of the end bars are secured to a hollow picket post 10, 10' having a plane wall by bolts and nuts 13 with the bolts passing through respective aligned slots 11, 11' in the plane faces of the picket post, each bolt head being within the post and of a width larger than the width of the slot. The bolts have preferably a square section shank adjacent the head to slide in the slot. The ends of each slot may be formed with an enlargement.
Patent GB-1356411-A (GB)
Title: Product and process for puffing tobacco
IPC: A24B3/18
Filed: 1971-08-26
Abstract: 1356411 Puffing tobacco PHILIP MORRIS Inc 26 Aug 1971 [31 Aug 1970] 40138/71 Heading A2C Tobacco is impregnated with ammonia or a substance capable of evolving ammonia when heated, and is then heated to puff the tobacco. The tobacco may be whole cured leaf, in cut or chopped form, stems, or reconstituted. Impregnation may be effected with ammonia vapour, liquid or aqueous ammonia, or ammonium carbonate or bicarbonate. The carbonate or bicarbonate may be formed in situ by sequential exposure of the tobacco to ammonia and then carbon dioxide or vice versa. Alternatively the tobacco may be exposed to the gases given off by the ammonium carbonate or bicarbonate in an enclosed zone, or the tobacco may be contacted with these salts suspended or partially dissolved in a liquid medium such as methylene chloride or aqueous methanol or ethanol solutions comprising 75 to 95% alcohol. Heating of the impregnated tobacco may be effected by the use of hot surfaces, hot air or a mixture thereof with steam, microwave energy, or infrared radiation.
Patent GB-867340-A (GB)
Title: Improvements in and relating to apparatus for use in with-drawing yarn from yarn packages
Inventor: CHAPMAN DENNIS RAYMOND
IPC: B65H59/08
Filed: 1958-12-12
Abstract: 867,340. Knitting machines. COURTAULDS Ltd. Dec. 11, 1959 [Dec. 12, 1958], No. 40147/58. Class 74 (2). [Also in Group IX] In a process for withdrawing a lively twisted yarn from a yarn package 3, the package is provided with a surround of a pleated material which provides a number of line contacts 2 with the package so that the pressure of such line contacts prevents the yarn overrunning while allowing withdrawal of the yarn to proceed unimpeded. The surround may be made of pleated nylon &c. fabric, paper or plastic. Several examples are given of the types of woven fabric which may be used and the dimensions of the pleated constructions. Specification 640,967 is referred to.
Patent GB-1484807-A (GB)
Title: Coil for magnetic field generation
IPC: G11C19/08
Filed: 1975-10-01
Abstract: 1484807 Printed circuits; coils ROCKWELL INTERNATIONAL CORP 1 Oct 1975 [9 April 1975 2 Oct 1974] 40171/75 Headings H1R and H1P A coil for magnetic field generation comprising a flexible insulant substrate of L-shaped plan, formed when flat with longer and shorter legs; a conductive layer on a first side of the substrate separated into plural conductors extending between first and second ends located at the outer extremities of the legs respectively; the longer leg being wound about an axis transverse thereto into a coil of one or more turns, and the shorter leg being folded across the wound longer leg and folded back on itself at an angle of 45 degrees to bring the first ends of the conductors adjacent the second ends; the first and second ends being interconnected together so that a first end of one conductor is connected to the second end of a different conductor to form a continuous series loop. An L-shaped stripe line composite (Figs. 1, 2, not shown) comprises a photolitho etched, e.g. copper conductor layer on a polyamide film, and is formed into a field coil (Fig. 3) by wrapping the composite several times round a former with the inner end of the longer leg in contact with the former and the shorter end extending outwardly from the inside of the winding. The free end A of the shorter leg is wrapped over the coil and is folded back on itself at an angle of 45 degrees so that its parallel conductors are aligned with those of end B. The conductors of A are, e.g. soldered in a manner offset by the width of one conductor to those of A, whereby a single closed loop is formed (Fig. 3A, not shown). The coil may have multiple layers (Fig. 4) in which conductors are superimposed in vertical columns 17 connected to form series loops 1, 2, 3; 4, 5, 6; 7, 8, 9 themselves series connected. The conductor widths may be decreased as the coil ends are approached so as to produce an even field distribution along the coil axis, and the conductor may be plated. A double sided stripe conductor may be wound so that the two patterns are retained in contacting alignment to form a coil having twice the thickness of the conductor pattern on either side of the film. Other printed circuit techniques are applicable to form the stripe line patterns.
Patent GB-1536295-A (GB)
Title: Use of 3-n-phenylcarbamoyl-4-hydroxy-coumarin derivative in insect control
IPC: A01N43/14
Filed: 1976-09-28
Abstract: 1536295 Combating insects with a coumarin derivative CIBA-GEIGY AG 28 Sept 1976 [29 Sept 1975 (2) 23 April 1976 (2) 6 May 1976 21 June 1976] 40214/76 Heading A5E [Also in Division C2] A method of combating insect pests at a locus comprises applying to the locus the compound of the formula I: viz. 3-N-(4-chlorophenyl)carbamoyl-4-hydroxycoumarin. The locus may be crops or stored goods of organic material. Insecticidal activity may be broadened by the inclusion of other insecticides.
Patent GB-956496-A (GB)
Title: Sand removal from wells
IPC: E21B37/00
Filed: 1961-11-13
Abstract: 956,496. Wells. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Nov. 13, 1961 [Nov. 14, 1960], No. 40567/61. Heading E1F. A sand removal tool adapted to be pumped down a tubing string 23 within a well comprises a body 50 adapted to be positioned by a stop 51 in the string, retractable latches 68, 69 carried by the body to latch it to the lower end of the string, a flexible hose 53 connected to the lower end of the body, and a pumpable carrier 100 adapted to be connected to and disconnected from the top of the body. A subaqueous well has strings 23, 24 having their lower ends secured to a packer 25 above a packer 42 which is in turn above a cement plug 40, the casing 22 between the packer 42 and the plug being perforated. The carrier which is according to Specification 942,343 is connected to the body and the tool is pumped down the string 23, the free end of the hose being provided with a shear disc or a valve so that the hose remains rigid. When the body has seated on the stop 51 and the latches have expanded into the recess 94 in the string 23, the pumping pressure is increased to rupture the disc or spin the valve so that fluid issues from the hose and flows upwardly through the string 24 carrying some of the sand 99 with it. In an alternative method of sand removal the circulation is reversed after the disc has ruptured, the reversed flow first disconnecting the carrier and moving it up the string 23. Continued reverse circulation entrains sand, and when the sand 99 is completely eroded the free end of the hose falls through passage 43 in the packer 42 to permit removal of any sand immediately above the plug 40. When all the sand has been removed, a modified carrier 101 is pumped down to the body, the carrier latching on to the body and removing the latches 68, 69 from the recess 94 so that further reversal of circulation removes the tool from the string. The invention may be applied to wells in which a single string is concentric with a casing.
Patent GB-1125211-A (GB)
Title: A control system for an oven
IPC: G05D23/275
Filed: 1966-09-12
Abstract: 1,125,211. Controlling burners. ROBERTSHAW CONTROLS CO. 12 Sept., 1966 [17 Sept., 1965], No. 40619/66. Heading F4T. [Also in Division G1] In a domestic oven, a pilot burner 26 is fed with a permanent small fuel supply via duct 58 and filter 59 for supporting a continuous relatively small stand by flame. When a control knob 36 is set to a desired oven temperature, a valve 16 is opened to allow fuel to reach a supply line 22 for the main burner 12 and also to allow fuel to flow through duet 28, a valve 33 (which is controlled by a thermostat) to the pilot burner 26 for supporting a relatively large flame which is sensed by a bulb 27 that then opens a safety valve 24 to admit fuel to the main burner 12. The thermostat comprises a temperature sensing bulb 44 that causes appropriate movement of a wall 41 and lever 40 thus to open and close valve 33. The position of the point 37 about which lever 40 pivots is determined by the temperature control knob 36. If the temperature sensed by the bulb 44 reaches a dangerously high level, valve 46 cuts off the flow of fuel to line 22. At the end of the cooking period, which may be determined by a timer (172) or a temperature sensitive probe (207) inserted into the food, the pivot point 37 is automatically moved to a new position corresponding to a non-cooking but warmth-retaining temperature, and a lamp (198) lights an indicator (205).
Patent GB-1104071-A (GB)
Title: Improvements in or relating to horological instruments
Inventor: SHELLEY JOHN HENRY
IPC: G04C3/06
Filed: 1963-10-17
Abstract: 1,104,071. Clocks and watches. SMITHS INDUSTRIES Ltd. Oct.16, 1964 [Oct. 17, 1963], No. 41136/63. Heading G3T. A timepiece is of the kind wherein a spring balance carries trigger and drive coils 4, 5 respectively coacting with a stationary field whereby the induced e. m.f. operates a transistor circuit powered by a battery 13 to pulse the drive coil. The energy input as a function of amplitude follows curve B, Fig. 1(not shown). The normal energy requirement follows curve A, whilst an abnormal one may follow curve C. Provided the input per impulse undergoes a large change with amplitude, timekeeping will be maintained. This requires that the ratio E/V of the back e. m.f. in the drive coil to the battery voltage, should be large. The resulting small values of (V-E) can be tolerated provided the impulse is sustained for a longer time T and the resistance R kept low. Arrangements are accordingly provided whereby, when the oscillation amplitude is 220 on either side of zero, the induced e. m. f. in the drive coil is not less than one half of the battery voltage, the values of T/R being suitably adjusted. As shown, the circuit includes transistor 8, damping condenser 14 and resistor 10 in the base circuit, the coils being connected through balance springs 9, 11, 12. The coils 4, 5 are rectangular and the poles 1, 2 of a C-shaped magnet are such that the length of the path of the coils through the gap subtends an angle of over 70. The normal oscillation amplitude is 220. The flux density in the gap is 5000 gauss. Coil 5 is of relatively low resistance heavy gauge wire. In a modification, the limbs of the respective coils 4, 5 which extend radially in the gap are spaced from each other in the direction of motion to ensure that no current flows in coil 5 unless it is within a region of high flux density. Other suitable circuits are disclosed in which the functions of the trigger and drive coils are performed by a single coil and in which there may be two or three transistors.
Patent GB-1155457-A (GB)
Title: Vibratory Conveyor
IPC: B65G27/00
Filed: 1966-09-15
Abstract: 1,155,457. Jigging conveyer. HART-CARTER CO. 15 Sept., 1966 [29 Sept., 1965], No. 41297/66. Heading B8A. A jigging conveyer 1 which conveys material from inlet 5 to outlet 6 is formed of tubular sections 1 which are carried by frame 2 by means of fibre glass springs 3. Frame 2 is formed of sections 8 bolted together at 9 and filled with sand and rests on springs 45 carried by feet 42. The conveyer is driven by rotating eccentrics 28 and 29 driven from motor 32 and carried by frame 2.
Patent GB-912290-A (GB)
Title: Process for dyeing or printing shaped structures of linear aromatic polyesters
IPC: D06P3/54
Filed: 1960-12-02
Abstract: Fibres, foils and other shaped structures of a linear aromatic polyester are dyed or printed with an aqueous dispersion of a dyestuff of the formula:- <FORM:0912290/IV (b)/1> in which R1 represents a hydrogen atom or an alkyl, aryl, alkoxy, alkoxy-alkoxy, alkoxyalkyl, aryloxy, trifluoromethyl, alkyl-OOC-or alkoxy-alkyl-OOC- group and R2 represents a hydrogen or halogen atom or an alkyl or alkoxy group.  Dyeing may be effected with or without carriers, at temperatures up to or above 100 DEG C., and prints are preferably heat treated at about 200 DEG C. Examples are given.  Specification 884,655 is referred to.
Patent GB-995640-A (GB)
Title: Improvements in methods of machining toothed wheels
IPC: B23F19/06
Filed: 1961-11-22
Abstract: 995,640. Gear-shaving. H. HURTH, and F. HURTH. Nov. 22, 1961 [Dec. 12, 1960], No. 41740/61. Heading B3K. A tool for shaving internal or estemal gears has the grooves so arranged in the teeth that those on successive teeth are not in alignment. The teeth are grooved in sets, e.g. there may be seven teeth in a set 1-7, Fig. 3 column 21), and the workpiece have eight teeth as indicated in column 20. Thus, number one tooth of the gear is contacted by tool teeth in the sequence 1, 2, 3, 4, 5, 6, 7. Traverse of the tool is not necessary. For shaving a large gear, the tool teeth are crowned.
Patent GB-1028232-A (GB)
Title: Proteolytic enzymes,their isolation and pharmaceutical preparations containing them
IPC: C12N9/58
Filed: 1962-11-06
Abstract: Proteolytic enzymes are separated from proteases by a process wherein the protease solution is subjected one or more times to an extractive cycle comprising the steps of (a) contacting the solution with a carboxymethylpoly-saccharide ion-exchanger at a pH of 2.5 to 8.5, (b) separating the ion-exchanger from the solution thus treated and (c) eluating proteolytic enzyme from the ion-exchanger with an eluating solution buffered to a pH value higher than that at which the enzyme was adsorbed. The ion-exchanger is preferably a carboxymethylcellulose or a carboxymethyldextran ion-exchanger and the eluating solution is preferably a phosphate buffer.  When the solution is subjected to more than one extraction cycles the pH in the second and subsequent cycles is preferably lower than that in preceding cycles. The process is particularly applicable to the production of enzymes designated Protease I, II and III from a protease solution obtained by treating with tannin a filtered culture medium obtained from a submerged cultivation of Aspergillus oxyzae until the onset of the spore formation to precipitate out the proteases and other proteins, separating the precipitate, treating the precipitate with acetone to extract the acetone-soluble constituents, and dissolving the acetone-insoluble constituents in an aqueous medium.ALSO:Pharmaceutical compositions contain a protease designated protease I or a mixture of proteases selected from proteases designated proteases I, II and III, which proteases rapidly decompose clotted blood, transudates and necrotic tissues, and are obtained by isolation from the protease solution obtained by cultivation of Aspergillus oryzae (see Division C3).  The protease may be admixed with an injectable pharmaceutical diluent to produce an injectable solution which may also contain heparin, or with a water-free fatty ointment base or water-free pharmaceutical diluent in powder form.  The ointment or powder may also contain a buffer system which when brought into contact with body fluids controls the pH of the ointment or powder and an antibiotic such as a penicillin, a tetracycline, tyrothricin, kanamycin, neomycin, bacitracin, polymyxin, trichomycin or xanthocillin, or a mixture of two or more of these antibiotics.
Patent GB-1387269-A (GB)
Title: Hydrometallurgical separation of iron and nickel
IPC: C01G53/08
Filed: 1971-09-09
Abstract: 1387269 Leaching Fe and Ni FALCONBRIDGE NICKEL MINES Ltd 8 Sept 1972 [9 Sept 1971] 42021/71 Heading C1A Tron and nickel are leached from particulate sulphidic material (e.g. matte) with hydrochloric acid such that the material, acid and water are fed to an aqueous leaching system at a rate such as to control (1) the acidity of the leach slurry which for a given acid consumption per unit mass of material reduces selectivity as it increases and increases selectivity as it decreases and (2) the acid consumption per unit mass of material which for a given acidity of the leach slurry reduces selectivity as it increases and increases selectivity as it decreases, thereby controlling the selectivity of leaching of iron with respect to nickel, withdrawing the acidic leach slurry from the leaching system and separating it into leached solids and an aqueous acidic leach solution. The leach slurry may be of pH. greater than 1 and the aqueous acidic leach solution may contain at least 100 grams/ litre of iron and may be treated with H 2 S and particulate iron bearing material in which the iron is present as oxide or hydroxide or a combination of both to precipitate Ni, Co and Pb. The iron bearing material may be produced by the hydrolysis of iron chloride or may be a calcine produced by the oxidative roasting of an iron bearing sulphidic material or may be ferrous hydroxide produced by reacting NH 4 OH with iron values already present in the aqueous acidic leach solution. The precipitation may be carried out at a temperature between 50 C. and the solution boiling point and the resulting solution may be almost pure ferrous chloride solution which may be used to regenerate hydrochloric acid for the leaching process and iron oxide for the precipitation process. The H 2 S used in the precipitation process may be that produced in the leaching process.
Patent GB-1356414-A (GB)
Title: Digitally operating graphic display system
IPC: G09G1/10
Filed: 1971-09-09
Abstract: 1356414 Cathode-ray tube displays ELLIOTT BROS (LONDON) Ltd 11 Sept 1972 [9 Sept 1971] 42109/71 Heading H4T In a computer controlled cathode-ray tube display system employing a digital differential analyser technique for displaying lines the incremented DX, DY deflections are produced by respective counter registers X1, Y1  (Fig. 1) which receive the "overflow" from respective accumulator registers Q1, A1 in which incremental quantities derived from the main memory 10 of the computer are inserted under the control of a microprogram control unit 14, the memory 10 also holding the start position co-ordinates XO, YO together with a number indicative of the length of the line to be displayed. By thus employing the computer memory to hold the X and Y deflection incremental quantities and the line length data a saving is made in the number of register required in the display system. In the operation of the system the microprogram control unit 14 operates, as depicted in Fig. 2, to: (1) Clear A1 and Q1; (2) Read the start position co-ordinate XO into register X1; (3) Read the start position co-ordinate Y0 into register Y1; (4) Read the line length count into register T1 and after testing (5) to discover if register T1 has not been counted down to zero (which mould indicate end of line) holds (6) the system until the first point has been displayed. The system then goes through steps (7), (8) and (9) to add the X and Y increments to register Q1 and A1 and to decrement register T1 by one count and continues to repeat the sequence (5) to (9) until the end of the line is indicated by zero count in register T1. Data may be inserted in the memories via register B1. The display system may be used in an aircraft to present flight control and navigation information to the pilot and instead on display straight lines cursive symbols may be drawn by suitable modification of the microprogram.
Patent GB-1204314-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: EVERSON IVOR
IPC: G21C1/02
Filed: 1966-09-21
Abstract: 1,204,314. Fuelling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 19 Sept., 1967 [21 Sept., 1966], No. 42249/66. Heading G6C. A sodium-cooled materials testing reactor comprises, within a vessel 1, a core 2 inside a reflector 3. A baffle wall 4 defines a space for pumps 5 which circulate coolant through the core and reflector and heat exchangers 6. The vessel 1 is closed by a shield 7, 8 having a fuelling duct 10 closed by a plug 11. The core 2 is supported on a platform 12 carried by one end of an arm 13 integral with a number 14 movable vertically and rotatively by a drive mechanism (not shown). A platform 15 at the other end of the arm 13 supports a replacement core 16. To refuel the reactor the member 14 is lowered to the chain-lime position to withdraw the core 2 from the reflector 3 and the arm 13 is rotated through 180 degrees, the member 14 then being raised to position the new core 16 within the reflector. The spent core 2 is removed in sections through the duct 10 and another replacement core is assembled in its place. The arm 13 is hollow and forms part of the coolant path from the. pumps to the cores 2, 16.
Patent GB-933122-A (GB)
Title: Salt of nicotinic acid
Inventor: SCHLESINGER ALBERT
Filed: 1961-11-27
Abstract: The invention comprises 1,3-dimethyl-7-(21-dimethylaminoethyl)-xantine nicotinate (a vasodilator and respiratory stimulant) and its preparation by reacting equivalent amounts of the parent acid and base in a solvent, e.g. ethanol.