baber/WOPTO huggingface dataset:
Patent GB-1277500-A (GB)
Title: Oxidation and sulphidation resistant articles
IPC: C23C10/52
Filed: 1969-12-18
Abstract: 1277500 Diffusion coating Ni or Co base alloys with Al-Mn alloys GENERAL MOTORS CORP 18 Dec 1969 [1 April 1969] 61670/69 Headings C7A C7B C7D and C7F. Ni or Co base alloys are diffusion coated with a 0.0004-0.006 inch thick layer of Al-Mn containing 15-67% weight Al and balance Mn. Coating may be effected electrophoretically by halide pack diffusion, or by sintering a slurry of the metal powders. Diffusion of the coating is effected at 1300‹F. for 1 hour and then at 2100‹ F. for 2 hours in H 2 . The Ni base alloy contains 40-80% Ni, 5-20% Cr, up to 10% Mo, up to 5.5% Ti, up to 6À5% Al, up to 3% Nb, up to 9% Ta, up to 13À5% W, up to 2% Hf, up to 1% Re, up to 1.5% V, up to 20% Co, up to to 3% Fe with minor amounts of C, B, Zr, Si and Mn. The Co base alloy contains 45-70% Co, 15-30% Cr, up to 7% Mo, up to 10% Ta, up to 16% W, up to 16% Ni, up to 30% Fe and minor amounts of C, B, Zr, Mn, Si and Ti. Electrophoresis: A coating bath contains: 6 pts weight isopropanol, 4 pts wieght nitromethane, 2.7 g/1 zein, 0.2 g/l cobalt nitrate, 8.25 or 16À75 g/l Mn powder and 16.75 or 8.25 g/l Al powder, the metal powders being of a 1 to 10 micron size. The object to be coated is a cast turbine blade which has been cleaned by dry honing using an aluminium oxide abrasive. It is coated as a cathode using a stainless steel anode and a current of 15 m.a. per sq in at 50-200 v. The coating is diffused at 1300‹ F. and then at 2100‹ F. in H 2  for 2 hours. Halide pack diffusion: Pack composition, 5Á powders; (1) 10% Al, 25% Mn, 8% NH 4 Cl, 57% Al 2 O 3  (2) 10% Al, 34% Fe/Mn, 8% NH 4 Cl, 48% Al 2 O 3  (3) 10% Al, 10% Mn, 8% NH 4 Cl, 72% Al 2 O 3 . Coated at 1350‹F., diffused at 2100‹F. in H 2  for 2 hours. Slurry method: Slurry of 1-5Á Al and Mn powders in potassium silicate and potassium nitrate is applied to a substrate, and heated at 1325‹F. and 2100‹F. Coated products are used as gas turbine blades and stator vanes resistant to oxidation and sulphidation.
Patent GB-1282130-A (GB)
Title: Improvements in or relating to rotary positive-displacement pumps
Inventor: VOIGT HELLMUT R
IPC: F04C2/344
Filed: 1969-12-18
Abstract: 1282130 Rotary positive-displacement pumps HAGEDORN & BAILLY 18 Dec 1969 61696/69 Heading F1F An hydraulic pump has working chambers 19 interjacent stators 7, 8 and undulating surfaces on the end-faces of rotors 1, 2, 3 secured to a rotary shaft 4, inlet and outlet passages 28, 29 in each stator being separated from each other by a vane 13, or 14, comprising two sets of axially-movable lamellae with a rubber ring 39 therebetween pressing them towards the respective rotors. Said passages communicate with pipe-sockets 17, 18 in the corresponding stators. Each outlet passage may be controlled by a non-return valve, Figs. 7 and 8 (not shown). Shaft packing 11 includes a spring-loaded carbon-ring 42. Portions 21 of the end-faces of the rotors abutting the stators may contain either labyrinth sealing-grooves (23), Fig.2 (not shown), or grooves housing sealing pads. Chambers 35, 36 reduce weight. The vanes 13, 14 may be replaced by pressure-loaded axiallysliding, or pivoted, vanes, Figs.9 and 10 (not shown).
Patent GB-1292976-A (GB)
Title: Hand microphone for sound recording and reproducing equipment
IPC: A47B95/02
Filed: 1969-12-18
Abstract: 1292976 Microphones; touch operated switches OLYMPIA WERKE AG 18 Dec 1969 [18 Dec 1968] 61812/69 Headings H3B and H4J A hand microphone for sound recording/ reproducing equipment has stationary touch operated switch controls 11, 22, 23, 24, 25 for controlling the function of contactless electronic switch devices 12, 13, 14, 15. At least one switch 11, 23 is capable of operating with an alternating voltage. For this purpose a transistor 16 is provided and a D.C. bias voltage is supplied to its base. This bias voltage is of sufficient value to permit adequate transistor base current flow in the forward direction both in normal and in inverse operation of the transistor 16. A metallic coating 11 is connected to a line 1. Coatings 22, 23, 24, 25 provide for rewind (R), playback (W), stop (H) and record (A). Each coating 22, 23, 24, 25 may be bridged to coating 11 by an operator's finger whereupon a corresponding signal reaches a contactless electronic switch 12, 13, 14, 15. Thus, if coatings 22 and 11 are bridged, a control signal reaches device 12 through the resistance of the finger and device 12 conducts, thereby connecting lines 1 and 2 and initiating rewind. When contacts 11 and 23 are bridged, the contactless electronic switch 13 is closed and a bias voltage reaches the base of the transistor 16 through a resistor 17. The bias voltage is negative for a P-N-P transistor 16. The collector-to-emitter path of the transistor 16 then conducts to switch an alternating signal source 19 through the lines 1 and 3 to energize a speaker 18. The bias voltage is higher than the maximum negative voltage peaks provided by the source 19. Some or all of the other contactless electronic devices 12, 14, 15 may have a similar transistor to cater for alternating voltages. If transistor 16 is of P-N-P type the bias voltage is higher than the maximum positive voltage peaks provided by the source 19.
Patent GB-767406-A (GB)
Abstract: 767,406. Power, voltage measurement. THOMAS & BALDWINS, Ltd., R., and DAVIES, G. R. Nov. 12, 1954 [Nov. 12, 1953], No. 31410/53. Class 37. A wattmeter comprises a dynamometer instrument having interacting fixed coils energized by the load current and moving coils controlling the indicator which are energized by the output current of a negative feedback electronic amplifier, whose input is energized by the load voltage and whose output circuit contains a series resistance the voltage developed across which is applied in phase opposition to the input voltage. Fig. 1 shows a dynamometer 1 where fixed current coils 3 are energized from a load current, and the deflectible pressure coils 2 are energized from the load voltage through an amplier 4 (Fig. 2) whose input terminals are connected between earth and the control grid of a pentode amplifier 8 having cathode bias over resistances 10, 11 and its anode directly coupled by resistances 13, 14 to the control grid 21 of a first section of a phase-splitting double triode 22 having a common cathode resistance, the control grid of the second section being connected over resistance 43 to the slider of bias adjusting potentiometer 46 in series in the resistances 45, 47 across the H.T. supply. The respective grids and anodes are interconnected by capacitances 30, 31 and are resistance coupled over capacitances 36, 42 and resistance potentiometers 32, 33 and 40, 41 to the control grids of the double triode 35 having a common cathode resistance. This operates as a pushpull amplifier wherein the anodes are connected to opposite ends of the resistance-capacitance shunted primary of output transformer 51, whose secondary is shunted by capacitance 62 and connected in series with the dynamometer pressure coil terminals 61 and resistance 59 between earth and the junction of resistances 10, 11 in the cathode of the first stage, whereby there is developed a degenerative feedback voltage in the amplifier input which is proportional to the output current and to the input voltage, so that waveform and phase shift variations arising within the amplifier circuit are minimized, while a high input impedance is presented by the amplifier to the load voltage and a low impedance is similarly presented to the dynamometer pressure coil. A pair of high slope pentodes may replace the first double triode and a pair of beam tetrodes the second or output double triode, while a thermal and a rectifier milliammeter may be connected in series with the pressure coil and the amplifier output to indicate average and R.M.S. voltages. The amplifier high tension supply is derived from a full-wave rectified and smoothed source incorporating a series stabilizing tetrode 69 controlled by an amplifier pentode 77 responsive to comparison of a fraction of the stabilized output voltage with a standard voltage developed across a gas discharge tube 86 in series with the cathode circuit of pentode 77.
Patent GB-2241743-A (GB)
Title: Bypass gas turbine powerplant
Inventor: LEWIS WILLIAM JAMES
IPC: F02K1/00
Filed: 1978-07-06
Abstract: A bypass gas turbine powerplant having front and rear vectorable nozzles for V/STOL and including means for burning additional fuel in the bypass flow through the front nozzles (PCB) further comprises means for varying the area of the rear nozzles 35, or means (33 or 31) for varying the geometry of the turbine or compressor blading, to vary the ratio of the pressures of the bypass flow in the front nozzles and the hot exhaust flow in the rear nozzles, and a control system which causes reduction of PCB fuel to the front nozzles along with variation in the area of the front nozzles to provide minimum PGB temperature while maintaining a substantially constant thrust centre position. <IMAGE>
Patent GB-2031441-A (GB)
Title: Polypyrrolidone-iodine complex
IPC: C08G69/24
Filed: 1978-08-24
Abstract: A novel complex of polypyrrolidone, also known as nylon-4, with iodine is disclosed. The complex has biocidal properties exhibiting expecially the fungicidal and bactericidal properties of free iodine but not its irritating and toxic properties. The complex may be formed with polypyrrolidone having any physical form such as a powder, pulp, film, fibre or moulded article. Bandage material made from fabric woven from nylon-4 fibres and complexed with iodine is a particularly useful form. Dry powders, ointments and other compositions for topical application may also be made.
Patent GB-2008659-A (GB)
Title: Chain Lock
IPC: E05B67/00
Filed: 1978-10-20
Abstract: Chain lock suitable for bicycles comprises a chain 1 equipped at one extremity with a locking device 2 which can cooperate with any link of the chain, characterised in that the said locking device comprises a housing 2 fixed to the said extremity of the chain, a dog 78 protruding from the said housing and equipped with a nose 8, a bolt 12 mounted for sliding parallel with the said dog and adjacent to the said dog, and a security lock barrel operated by key 5 rotating in the said housing and controlling the displacement of the said sliding bolt. <IMAGE>
Patent GB-2011153-A (GB)
Title: Telecommunication cables
IPC: H01B7/288
Filed: 1978-11-03
Abstract: In a telecommunication cable of the kind comprising a core 1 including a multiplicity of polyethylene insulated conductors 2 with the interstices filled with petroleum jelly 3, and a polyethylene sheath 7, the core is enclosed in a loose fitting flexible sleeve of polyethylene or polyethylene terephthalate 4, possibly of polyethylene tape 8 which contains a buffer material 5. Preferably the buffer material fills any space between the core and sheath. The buffer material flows or is deformed within the flexible sleeve when the sheath is applied or it expands after the sheath is applied or, being hygroscopic e.g. polyacrylamide, when water penetrates the flexible sleeve. 6 is an optional conductive moisture barrier. The buffer material may be petroleum jelly or foam. <IMAGE>
Patent GB-2034525-A (GB)
Title: Improvements in or relating to microwave transmission systems
IPC: H01Q3/36
Filed: 1978-11-17
Abstract: Antenna elements 44 are fed from a lesser number of controllable phase shifters 42 to enable a microwave beam to be swept over an arc, each element being fed from more than one phase shifter. This allows undesirable side lobes to be minimised, whilst requiring relatively few expensive controllable phase shifters. The invention is applied to an aircraft landing system. <IMAGE>
Patent GB-2009878-A (GB)
Title: Supporting pipes inside other pipes
IPC: F16L59/12
Filed: 1978-12-07
Abstract: There is disclosed an assemblage for forming a device for centring one pipe (3) inside another pipe (1). The assemblage comprises a plurality of inter-connecting ring segments for forming a centring ring (5) and a plurality of interconnecting ring segments for forming a sealing ring (18), and a plurality of resilient connecting elements adapted to connect the rings, when assembled, in a direction perpendicular to the planes thereof. The rings, when formed, have corresponding faces (15, 19) to be placed in contact with one another when the device is in situ between the two pipes. These faces (15, 19) are at an acute angle to the longitudinal axis of the pipes. <IMAGE>
Patent GB-2011482-A (GB)
Title: Washing textiles
IPC: D06F21/04
Filed: 1978-12-21
Abstract: A process for the washing of textiles without loss of detergent in a washing machine which has a fixed liquor tank 4 and rotatable horizontal washing drum 5, in which after the onset of the washing-in of the detergent from a dispenser 2 and for a period of time lasting at least one minute and ending at the latest with the discharge of the washing liquor, the liquor is removed by suction at the lowest point of the liquor tank and returned to the tank at a higher point, the quantity of liquid transported being at least 5 litres. Suction is applied by a pump 9 and a fluff sieve 7 is provided. A stand- pipe 10 connects the pump 9 to a three-way valve 11 which can return wash liquor to the tank 4 through a pipe 12 or discharge spent liquor through a pipe 14. In modifications, the pipe 12 returns wash liquor to a flexible inlet pipe 3 or the pipe 10 leads straight to an injection nozzle for fresh water in the dispenser 2. <IMAGE>
Patent GB-2011100-A (GB)
Title: Photosensitive materials suitable for the production of transfer materials
IPC: G03F7/34
Filed: 1978-12-21
Abstract: Photosensitive materials are described which may be used for manufacturing dry transfer materials by imagewise exposure and development. The photosensitive system is that of a polymerisable monomer, ferric salt and peroxide. In order to give a practical product, the ferric salts and the peroxide are in different layers containing water- soluble or water-dispersible polymers. There may be two layers containing the ferric salt and monomer, the upper layer also containing a colorant and an adhesive and being overcoated with the peroxide layer. Alternatively, adhesive may be applied to the exposed and developed material before transfer.
Patent GB-2045060-A (GB)
Title: Mounting articles on edges
IPC: G09F3/20
Filed: 1979-02-09
Abstract: In an arrangement, device and method for mounting an object (eg a display panel) on an edge or lip (24) of a second mounting member (20), the first member (10) has generally opposed surfaces, between which the edge or lip (24) of the second member (20) is received, and a spring-biassed element (17, 18) which bears against the second member (20). The opposed surfaces may be formed by the side webs of a channel portion and the spring-biassed element (17, 18) by a spring tongue, such that entry of the edge or lip (24) of the second member (20) between the opposed surfaces is easier than withdrawal therefrom. The second member (20) can be constituted by a ticket rail and a display panel (30) can be attached to the first member (10). Three distinct embodiments are disclosed. <IMAGE>
Patent GB-2015814-A (GB)
Title: Laser diode having a distributed resonator
IPC: H01S5/12
Filed: 1979-03-01
Abstract: In a laser diode having a distributed resonator, the active layer 3 has in its forbidden band energy levels lower than the forbidden band of its substrate 6. The latter is therefore transparent to light emitted from the active region. The invention is applicable to optical telecommunications, fig. 8 (not shown). <IMAGE>
Patent GB-2015580-A (GB)
Title: Recarburising ferrous materials
IPC: C23C8/34
Filed: 1979-03-13
Abstract: The invention relates to a method of carburising ferrous materials. The object of the invention is to provide a process for carburising ferrous materials which is capable of producing a substantially uniform distribution of carbides. The objective is achieved by a method comprising forming a body of ferrous material either carbon free or with a carbon content lower than that required in the final product, and with a substantially uniform distribution of inter-metallic compounds throughout the body, forming on the surface of the body a coating of metal oxide, and subjecting the body to a heat treatment in the temperature range 720 DEG C to 900 DEG C in a carbon containing environment.
Patent GB-2021951-A (GB)
Title: Fungicidal compositions comprising 2,4,5-trimethyl-N- phenyl-3-furancarboxamide
IPC: A01N43/78
Filed: 1979-03-16
Abstract: Polyvalent fungicidal plant protection compositions, in particular for combating plant diseases by treatment of seed, comprise as active compounds 2,4,5-trimethyl-N-phenyl- 3-furancarboxamide in combination with 1-[2-(2,4-dichlorophenyl)-2-(2- propenyloxy)-ethyl]-1-H-imidazole and/or 2-(4-thiazolyl)-benzimidazole. Rye, wheat, barley or oat seeds may be treated.
Patent GB-2049660-A (GB)
Title: 2-Spirocyclopropanbisnor- penicillanic acid derivatives
IPC: C07D499/00
Filed: 1979-05-16
Abstract: The compounds have the 3S, 5R, 6R configuration and are represented by formula (IV):   <IMAGE> wherein R represents an optionally substituted amino group. (including acylamine). They have antibiotic activity.
Patent GB-2026511-A (GB)
Title: Siloxanes
IPC: A01N55/00
Filed: 1979-06-22
Abstract: Siloxanes having units containing the grouping (XOQO)Si IDENTICAL  in which X represents hydrogen or a chemical bond linking the adjacent oxygen atom to the silicon atom of a silyl or siloxy group and Q represents   <IMAGE> are prepared by reacting a siloxane with 2-butyl-2-ethylpropane-1,3-diol or 2- ethylhexane-1,3-diol and are useful for imparting insect repellent properties to surfaces.
Patent GB-2027366-A (GB)
Title: Reinforced Jigging Screens
IPC: B07B1/46
Filed: 1979-06-26
Abstract: Conventional jigging screens, for example for classifying material in the coal industry, are often made of steel but suffer the disadvantage of being noisy and having a high rate of abrasion. The invention provides a wear- resistant jigging screen having a jigging surface essentially composed of synthetic polymeric material, the screen being rectangular in shape and possessing a regular pattern of sized apertures 4 such that elongate reinforcing members 5, or notional elongate reinforcing zones of uniform cross-section, can pass within, or along the back surface of, the polymeric material parallel to the short edge 1 of the screen and extending between the two longitudinal edges 2 so as to separate single rows of the apertures. <IMAGE>
Patent GB-2036619-A (GB)
Title: Methods and apparatus for forming tubes
IPC: B24B5/36
Filed: 1979-08-23
Abstract: In hot-rolling of tubes, rollers 1 and 2 force a hot metal workpiece over a mandrel. Between successive rolling steps residues adhering to the working surfaces of the rollers 1 and 2 are removed by abrading devices 10 (e.g. grinding devices) pivotable towards and away from respective rollers 1 and 2 about axes 5 and 6. <IMAGE>
Patent GB-2030373-A (GB)
Title: Current Transformers
IPC: H01F38/30
Filed: 1979-09-14
Abstract: A current transformer for an electrical measuring instrument comprises an iron or ferrite core 1, 2 having two symmetrically disposed air gaps (3) and two secondary windings (4) which are associated with the air gaps (3) and are so connected that voltages induced in them add together. A primary winding 7 is placed symmetrically relative to the air gaps (3). Extraneous field errors thus tend to be cancelled out. <IMAGE>
Patent GB-2034358-A (GB)
Title: Process for dyeing and printing cellulose fibres
IPC: C09B1/51
Filed: 1979-10-02
Abstract: Cellulose fibres which have been swollen with water-miscible swelling agents or mixed fibres containing these fibres are dyed or printed with dyestuffs which are free from sulphonic acid groups and carboxylic acid groups, of the general formula   <IMAGE>  wherein X represents a direct bond, CO-, SO2- or an alkylene group which is optionally substituted or interrupted by oxygen, the radicals Y independently of one another represent hydrogen, hydroxyl, optionally substituted alkoxy, nitro or NH-A,     A represents hydrogen or optionally substituted alkyl or acyl, R represents halogen, amino or optionally substituted alkyl, alkoxy, alkylmercapto, monoalkyl-, dialkyl- or acyl-amino, cycloalkyl or aryl,     Hal represents chlorine or bromine,     n represents 0, 1, 2 or 3 and r represents 0 or 1, with the proviso that there is not more than 1 acylamino group on a nucleus, and Y and NH-A do not simultaneously represent an acylamino group and an NH2 group, and the dyestuffs are fixed by heat treatment. The cellulose may be blended with polyester or polyamide fibres.
Patent GB-2063857-A (GB)
Title: Pyridone compounds, developing agents
IPC: G03C5/30
Filed: 1979-11-28
Abstract: Novel compounds of use as black- and-white silver halide developing agents are pyridone compounds of the general formula I:-   <IMAGE> wherein R1 is a hydrogen atom, an optionally substituted C1-6 alkyl group or an optionally substituted aryl group, R2 is a amino group or a hydroxy group, R3 is a hydrogen atom, an optionally substituted C1-6 alkyl group, a carboxylic acid group, an ester group or an amide group and R4 is an electron withdrawing group.
Patent GB-2044731-A (GB)
Title: Intermediate bulk container
IPC: B65D88/16
Filed: 1980-02-28
Abstract: A flexible cylindrical bag of synthetic fabric has an upper rim 18 which is thickened by a rope or cord enclosed in a hem. This causes bunching when the bag is closed by a draw string 17 to form a neck. A sling tied around the neck as a choke hitch to lift the bag is pulled tight by the weight of the bag and the bunched rim prevents the bag slipping out of the sling. A cover sheet may be placed over the bunched rim and neck and tied on by the ends of the draw string, which pass through a slot in the cover sheet. <IMAGE>
Patent GB-2049560-A (GB)
Title: Plasma etching
IPC: C23F4/00
Filed: 1980-05-09
Abstract: A method of etching the surfaces of workpieces in vacuum by an etching gas, which is activated by a low-voltage arc discharge between a thermionic cathode (13) and an anode (6). The surfaces to be etched are arranged outside the arc plasma and are protected from damage. The steepness of the flanks of the etched structures and the etching rate may be adjusted by the pressure of the gas in the etching chamber (1) and possibly by an auxiliary voltage applied to the workpieces (3) to be etched or to their carriers (2). <IMAGE>
Patent GB-2052759-A (GB)
Title: Method of producing oxygen sensing element having sintered solid electrolyte layer
IPC: G01N27/416
Filed: 1980-05-27
Abstract: In a method of producing an oxygen sensing element of the oxygen concentration cell type having a sintered shield layer (12), a sintered layer (16) of oxygen ion conductive solid electrolyte, reference electrode layer (14) sandwiched between the shield and solid electrolyte layers (12, 16) and a measurement electrode layer (18) on the outer side of the solid electrolyte layer (16), the shield layer (12) and solid electrolyte layer (16) are placed one upon another, with the reference electrode layer (14) interposed therebetween, while the shield and solid electrolyte layers are each in an unfired state and then fired in the piled state to achieve simultaneous sintering of the shield layer (12) and the solid electrolyte layer (16) such that selected one of these two layers has an adequately porous structure after sintering. One or both of the reference and measurement electrode layers (14, 18) may also be fired only after assemblage with the unfired shield and solid electrolyte layers (12, 16). The product of this method is suitable for use in exhaust gas of an automotive engine to detect air/fuel ratio of a stoichiometrical, rich or lean mixture supplied to the engine. <IMAGE>