baber/WOPTO huggingface dataset:
Patent GB-1068774-A (GB)
Title: Electrochemical method of and apparatus for producing a protective gas mixture comprising nitrogen and hydrogen
IPC: C25B1/02
Filed: 1964-10-09
Abstract: <PICT:1068774/C6-C7/1> A mixture of nitrogen and hydrogen is formed by feeding air to a gas diffusion electrode functioning as a cathode in an electrochemical cell in which oxygen is reacted electrochemically and mixing the residual nitrogen from the cell with cathodically evolved hydrogen.  As shown, air is supplied under constant pressure to the oxygen extracting cathode EL at such a flow rate that with the applied negative potential the current is the limiting current obtainable.  The air depleted of oxygen (mainly nitrogen) is then passed to the cathode EH2 of a water electrolysis cell and is mixed with cathodically evolved hydrogen, the composition of the mixture being kept constant by maintaining the currents in the two cells equal by means of resistors RN2, RH2 and balancing circuit PO1.  By using the same electrolyte in both cells, e.g. K.O.H. the two cells may be housed in a single vessel using a single anode Fig.3 (not shown).  The oxygen extracting cathode EL may be formed from carbon black and P.T.F.E. and if separate cells are used the anodes may be of nickel sheet and the water-electrolysis cell may be divided by a nickel sheet which separates the gas spaces and is perforated below the electrolyte surface. Alternatively the cathode EL may be a fire-layer gas diffusion electrode comprising a gas-distributing core formed from carbonyl nickel and potassium chloride powders, flanking working layers formed from carbonyl nickel and silver-aluminium alloy powders and covering layers formed from finer powders of the same materials. The oxygen-extracting cell may include two anodes on opposite sides of the cathode EL each.comprising a nickel sheet bearing porous nickel layers formed from a mixture of carbonyl nickel and nickel-aluminium powders and subjected to hot caustic potash leaching, while the water-electrolysis cell may have similar anodes flanking a five-layer gas diffusion cathode similar to cathode EL but including for the working layer a nickel-aluminium alloy instead of the silver-aluminium alloy and having covering layers consisting of copper powder only.  In a further embodiment Fig.4 (not shown) a single gas diffusion electrode comprising active nickel is used as both oxygen removal and hydrogen generating cathode but in this case composition of the gas mixture varies with rate of gas flow through the cathode. Platinum or palladium may be used instead of nickel. Reference is also made to the use of a cathode of palladium-silver alloy foil covered with platinum black on the face exposed to the gas flow instead of the five-layer diffusion electrode.
Patent GB-1055476-A (GB)
Title: Process for the manufacture of dummy bottles of containers
Inventor: FITZPATRICK ALAN JAMES
IPC: G09F19/10
Filed: 1963-10-25
Abstract: 1,055,476. Dummy bottles. T. SOLENGHI. Oct. 25, 1963, No. 42127/63. Heading G5C. A dummy, representing a bottle or other container containing a liquid or semi-liquid, opaque, translucent or transparent product, is made by fitting a hollow body of synthetic material, resembling say a bottle but with no bottom, with a tightly fitting internal body coloured to represent the product, filling the remaining part of the hollow body with a suitable liquid and sealing the bottom and top of the hollow body hermetically. The hollow body may be colourless or tinted. Liquid may be poured into an inverted, stoppered " bottle " prior to welding the bottom on, or the bottom may be welded on first.
Patent GB-1286501-A (GB)
Title: Imaging method
IPC: G03F7/28
Filed: 1969-08-25
Abstract: 1286501 Imaging processes XEROX CORP 25 Aug 1969 [26 Aug 1968] 42154/69 Heading G2C [Also in Division B6] A member 10 comprising an agglomerable material 13 and a softenable material 12 (optionally on a substrate 11) is imagewise softened so that material 13 laterally migrates and agglomerates, effecting transperentising and/or colour change. Member 10 may be uniformly softened and then imagewise softened. Heat (through a transparency or stencil) or liquid or vapour (through a stencil) may soften member 10. Material 12 may be various polymers or waxes such as Staybelite (RTM), material 13 is preferably selenium and substrate 11 preferably aluminized Mylar (RTM).
Patent GB-1116245-A (GB)
Title: Staple blank and staple element strip
Inventor: LIBBY MARVIN
IPC: F16B15/08
Filed: 1966-04-18
Abstract: 1,116,245. Staple package. SPOTNAILS Inc. 18 April, 1966, No. 42430/67. Divided out of 1,116,244. Heading B8 [Also in Division F2] The subject matter of this Specification is identical to that of Specification 1,116,244, but the claims are directed to a staple blank which has a cross-section formed by opposite plane edges 13 and 14, with arcuate sides 12, to facilitate its assembly into a rolled pack.
Patent GB-1164156-A (GB)
Title: Deep Drawing
Inventor: HOFFMAN BERNARD L
IPC: B21D22/24
Filed: 1966-09-23
Abstract: 1,164,156. Stamping. FREDERICK A. KRAUSE ASSOCIATES Inc. 23 Sept., 1966 [27 Sept., 1965], No. 42547/66. Heading B3Q. A method of drawing sheet metal 28 into cupshape comprises applying pressure against one side of the sheet in spaced regions and simultaneously applying opposite pressure on the other side of the sheet in a region between the spaced regions. The sheet is drawn between dies, Fig. 1, in which the lower die has retracting rings 30, 42 supported respectively on pins 34, connected to an hydraulic cylinder 38, and on pistons 50 in cylinders 52. Co-operating shearing edges on the lower end of the top diesection 14 and upper end of the bottom diesection 24 sever a blank from the sheet at the start of the drawing operation, which is completed in a single stroke of the upper die. Continued downward movement of the upper die retracts the lower, clamping ring 30, Fig. 2, and draws the blank into a shallow cup over the inner ring 42. Both rings 30, 42 now retract as a tubular, inner member 18 of the upper die enters an annular space 64 in the lower die, Fig. 3 (not shown). The operation ends with the blank formed over the central member 62 of the lower die and trimmed at its lower end between a ridge 66 in the space 64 and the end of member 18.
Patent GB-1128638-A (GB)
Title: A clearing device for a snagged hook
Inventor: DRIVER CYRIL EDWARD
IPC: A01K97/24
Filed: 1966-09-23
Abstract: 1,128,638. Fishing apparatus. INSULATION MFG. CO (PLASTICS) Ltd. 13 Sept., 1967 [23 Sept., 1966], No. 42595/66. Heading A1A. A device for clearing a snagged line comprises a float 1 arranged for attachment to the line by means of a slot 2 and a rotatable centre part 6 whereby the line can be introduced and retained in the hole 10. The device slides down the line to the water and flows with the current to pull on the snagged line.
Patent GB-1071667-A (GB)
Title: Improvements in and relating to static switching apparatus
Inventor: WOODWARD WILLIAM HENRY
IPC: H02M7/515
Filed: 1963-10-29
Abstract: 1,071,667. Thyristor switching circuits. LANCASHIRE DYNAMO ELECTRONIC PRODUCTS Ltd. Jan. 29, 1965 [Oct. 29, 1963; Feb. 5, 1964], Nos. 42640/63 and 4927/64. Heading H3T. [Also in Division H2] A load 1 is connected to either of two supply terminals by thyristors TH 1'  TH 2  controlled by a commutating circuit L 2 , L 2 , C 2 . The saturable transformer T 1  has its primary in series with the commutating capacitor C 2  and its secondary connected through a diode bridge rectifier D 3 , D 4 , D 5'  D 6  to the supply so that some of the energy absorbed in the commutating circuit is returned to the supply. The saturable choke L 1  in series with the load 1 limits the current in a thyristor which has just been fired during the interval when that thyristor would carry both the load current and the commutating current. The load current may be A.C. (if the two thyristors conduct for equal periods) or D.C. (if one thyristor conducts for a greater period than the other, so that the circuit becomes a D.C. chopper). An alternative connection of transformer T 1  and choke L 1  is disclosed (Fig. 3, not shown).
Patent GB-1284565-A (GB)
Title: Electrophotographic toner loading mechanism
Inventor: ALTMANN CONRAD
IPC: G03G15/08
Filed: 1969-08-28
Abstract: 1284565 Electro-photographic developing apparatus EASTMAN KODAK CO 28 Aug 1969 [30 Aug 1968] 42915/69 Heading G2H A bag 1 containing toner is placed in an electrophotographic copier and cut open whereby the toner is deposited by gravity into a reservoir 5. As shown, a bag 1 is placed in a rest 2 and a lid 8 is slid into the closed position (as shown) to spear the bag with a spear 4 and to trip a switch 10 whichoperates knives (11), Figs. 8, 9, 10 (not shown). Instead of spear 4, jaws (14, 15), Figs.3-7 (not shown) may be used to support the bag. In Figs. 11 to 15 (not shown) the bag is loaded into a rest which moves from the loading position to a position over the reservoir and passes over a rotary saw during this movement.
Patent GB-921567-A (GB)
Title: Improvements in or relating to adjustable door hinges
IPC: E05D7/04
Filed: 1961-12-05
Abstract: 921,567. Hinges. THERMA A.G. Dec. 5, 1961 [Dec. 6, 1960], No. 43412/61. Class 65 (2). An adjustable hinge comprises a hinge member 11 having a section which penetrates into a tubular guide member 7 adapted to be fixed to a part of a cupboard or the like, the hinge member having a front screw 13 to support it vertically relative to the guide member and a rear screw 14 which coacts with an enlarged front portion 1 la of the hinge member to support it horizontally relative to the guide member, the screws being accessible through openings 15a in the guide member. The length of the screws may be the same as the internal width of the guide member, in which case they are held against undesired rotation by spring pins 16, or may be greater than the internal width of the guide member, in which case the latter is made resilient and clamps the screws in their adjusted position. The guide member is provided with studs 8 which, together with screws 10, serve to attach the member to the cupboard.
Patent GB-1398318-A (GB)
Title: Radio signal receivers
IPC: G01S7/34
Filed: 1972-09-21
Abstract: 1398318 Automatic gain control; monopulse radar ELECTRONIQUE MARCEL DASSAULT SA 21 Sept 1972 [24 Sept 1971] 43810/72 Headings H4R and H4D An agc. for an amplifier includes a pair of P-I-N diodes associated with the amplifier which are arranged such that the attenuation in decibels introduced in the amplifier by the diodes varies linearly as a function of the output voltage of said amplifier. The invention is described as applied to a monopulse radar receiver (Fig. 1) which, as is known, comprises three amplification channels, a channel 12 for receiving a sum signal # of the signals transmitted by an associated monopulse radar antenna, and channels 9 and 10 for receiving the difference signals #X and #Y respectively corresponding to the components of the azimuther elevation # of the direction of the echo with respect to the direction of the radio axis of the radar antenna. There is coupled to the output of the I.F. amplifier 13 in one of the channels an age. arrangement which is coupled to the amplifiers 13, 43, 44 in all three channels so that their gains are varied equally in dependence on the output voltage of the one channel, thereby sensing that the gains of all three channels remain equal to one another at all times. The age. arrangement includes an amplifier filter 16 which derives a voltage u, from the I.F. amplifier output, which is proportional to the amplifier voltage output. This voltage u is used to drive two function generators 21, 22 which produce voltage outputs V, V<SP>1</SP> where V=f(u) and V<SP>1</SP>=f<SP>1</SP>(u) the forms of V and V<SP>1</SP> as a function of u being illustrated in Figs. 4 and 5 (not shown). The voltages V, V<SP>1</SP> are then used to control current generators 28, 37 associated with P-I-N diodes connected to amplifier 13 and current generators associated with P-I-N diodes connected to amplifiers 43 and 44. Fig. 3 shows the arrangement associated with amplifier 13 which is a two stage amplifier comprising integrated circuit amplifier stages 53 and 62. The first current generator 28 driven by voltage V feeds current to P-I-N- diodes 32 and 33 connected at the inputs of respective amplifier stages 53 and 62 and current generator likewise feeds currents to P-I-N diodes 41 and 42 associated with the output circuitry of the respective stages. Identical arrangements are used for the amplifiers 43, 44. The form of the functions f(u) and f<SP>1</SP>(u) are chosen to give the required relationship between output voltage and the attenuation in decibels introduced, by taking into account the known characteristics of P-I-N diodes.
Patent GB-1337464-A (GB)
Title: Adjustable period seismometer
IPC: G01V1/18
Filed: 1971-09-21
Abstract: 1337464 Spring pivots TELEDYNE INDUSTRIES INC 21 Sept 1971 [23 Nov 1970] 43976/71 Heading E2F [Also in Divisions F2 and G1] A pivot assembly 34 for providing an adjustable restoring torque to the arm 30 of a seismometer, comprises a cylindrical housing 20 fixed to an arm 33 and a cylindrical element 22 fixed to the arm 30 and suspended in the housing by crossed ligaments or sets of ligaments 24, 26, 28 passing through holes 23, 25, 27 in the element 22 and secured to the housing 20 and the element 22 as shown in Fig. 5. The restoring torque of the assembly about an axis through point O can be adjusted by adjusting the loading F in ligament 28. To this end part 21 of the housing can be moved about a hinge 29 by applying a spring force L at edge 21a, the force L being controlled by a cam and follower arrangement.
Patent GB-1267708-A (GB)
Title: Process for preventing the withering of plants
IPC: A01N3/00
Filed: 1969-09-05
Abstract: 1,267,708. Treating plants. TEKKOSHA K.K. 5 Sept., 1969 [6 Sept., 1968], No. 44003/ 69. Heading A1E. [Also in Division Cl] A process for preventing the withering of plants in the field, by controlling the vaporisation of moisture in the plants, comprises applying an aqueous emulsion of a polymer of a vinyl ester, an acrylic acid ester and/or vinyl pyrrolidone. The vinyl ester may be the acetate, propionate or butyrate, and the acrylate may be methyl, ethyl, propyl, butyl, heptyl, hexyl or octyl acrylate. The examples describe the application of polymer emulsions to crytomeria.
Patent GB-1105997-A (GB)
Title: Octadecanonaene pigments
IPC: A23K1/16
Filed: 1966-10-03
Abstract: The invention comprises compounds of formula <FORM:1105997/C2/1> wherein R1 and R2 are OH, C1- 6 acyloxy or (up to C9) aroyloxy, or R2 is H.  These compounds are prepared by reacting crocetindialdehyde with triphenyl - [2,3,6 - trimethyl - 4 - (tetrahydro - 21 - pyranyloxy) benzylphosphonium bromide or chloride, or with a mixture of this with the 4-unsubstituted analogue, in an organic solvent in presence of PrLi, BuLi, PhLi, NaoMe or NaOEt at 20-40 DEG C. and 1-24 hours in an inert gas atmosphere, the product being hydrolysed with acid and optionally converted into the acyl or aroyl derivatives by reaction with the appropriate acid chloride or anhydride.ALSO:An additive for animal foodstuffs, especially useful for its pigmenting action in poultry feeds, has the formula <FORM:1105997/A1-A3/1> wherein R1 and R2 are OH, C1-6 acyloxy or (up to C9) aroyloxy, or R2 is H.
Patent GB-1297170-A (GB)
IPC: A01D34/42
Filed: 1970-09-16
Abstract: 1297170 Lawnmower handles VICTA Ltd 16 Sept 1970 [8 April 1970] 44255/70 Heading B7T A lawnmower has a foldable handle comprising a U-shaped frame 9 pivotally connected to a pair of tubular members 10 which are in turn pivoted to the back plate 7 of the mower at 6, there being associated with each member 10 a locking plate 25 pivoted at 26 to the plate 7 and biased by a spring 29 to pivot such that a pin 27 on the member 10 is captured by a slot 28 in the plate 25 thereby holding the handle erect, the handle being released by manually depressing a leaf spring 35 located in plate 25 and pivoting this plate so that the end of the spring 35 is held by a tapered pin 37 on the member 10, whereby the slot 28 is freed from pin 27 and the handle is able to be folded forward about pivots 6. The adjacent ends of the frame 9 and members 10 are flattened at 13 and 12, and formed with teeth 24 which engage to retain the relative positions of the frame 9 and the members 10 when a cammed lever 20 is  held against the members 10.
Patent GB-978139-A (GB)
Title: A collapsible duct
IPC: F16L59/04
Filed: 1962-11-23
Abstract: 978,139. Collapsible ducts. OWENSCORNING FIBERGLAS CORPORATION. Nov. 23, 1962 [Dec. 11, 1961], No. 44434/62. Heading F2P. A collapsible duct of polygonal cross-section has walls each 56 which comprises an outer layer of relatively hard damage-resistant material and an inner layer of resilient insulating material, whereby the resilience of the inner layer will act to restore the duct to its polygonal cross-sectional shape after collapse. The facing layer 12, Fig. 4, comprises an outer sheet 13 of, e.g. kraft paper or rigid vinyl, an inner sheet 14 of aluminium foil and a space between in which is a mesh of glass strands 16, 17. The insulating fibrous glass wool layer 11 is stuck to the sheet 14 and the layers 14, 16 and 17, 13 are all held together by a suitable adhesive which is preferably flame-retardant by producing a fire-quenching gas when heated. A single sheet of such composite material, Fig. 3, is bent up to form the duct, being adapted to this purpose by V-shaped cuts 20, 21, 22 the sides of which meet to form fold lines 20a, 21a, 22a, Fig. 5. At the remaining corner of the square section shown in Fig. 5 the joint is made between an offset 23 and an opposed longitudinal edge 24, a seal flag 25 being formed by an extension of the facing material. This corner joint is reinforced by a tape 26 impregnated with plaster of Paris. The forces between the glass fibre in the offset 23 and the adjacent fibres in the edge 24 are smaller than those exerted by the glass fibres adjacent the fold lines 20a, 21a, 22a and therefore, if the angle of the V were the same for all the cuts 20, 21, 22 the section would be rhombic instead of square. To allow for this the V-angle of the cut 21 is slightly less than for the other two cuts. The duct is collapsed for transport by pushing upwards at opposite corners, as shown by arrows A, B, Fig. 6, and when the duct is collapsed the fold lines 20a and 22a of Fig. 5 become alongated as shown at 20b, 22b, Fig. 6, owing to compression of the glass wool, while the fold line 21a opens into a groove 21b opposite the opened joint between the offset 23 and the edge 24. The ends of sections are shaped so that they may be joined by a shiplap joint, Fig. 7, which may be wrapped round with impregnated tape. Large sections may be joined by a butt joint, Fig. 9, aligned and strengthened by a metal insert 30 fabricated from T-bars.
Patent GB-1479597-A (GB)
Title: Stabilized aqueous catecholamine solutions
IPC: A61K9/00
Filed: 1973-09-24
Abstract: 1479597 Stabilised catecholamine solutions SMITH & NEPHEW PHARMACEUTICALS Ltd 24 Sept 1974 [24 Sept 1973 (2)] 44660/73 and 44661/73 Heading A5B A topical aqueous solution especially suitable for application to the eye for the treatment of open-angle glaucoma comprises 0.1 to 5% by weight of a therapeutically active catecholamine in purified form, from 0.5 to 5% by weight of a water-soluble pharmacologically tolerated thiolic stabilising agent, at least one acid or acid-reacting compound unless the thiolic compound is suitably acidic, whereby the catecholamine is solubilised, and a base to bring the pH to 6.0 to 7.5, the solution being free from borate ions. The catecholamine may be adrenaline, isoprenaline or noradrenaline. The thiolic compound may be cysteine, N- acetyl cysteine, α-mercaptol acetic acid, α- mercaptolpropionic acid, methyl cysteinate, 1- thiosorbitol, or 1-thioglycerol. The base may be ammonium hydroxide; the acid or acidic compound may be citric acid, a phosphate or phosphoric acid. The solutions may also contain an adrenergic blocking agent such as guanethidine or a salt thereof.
Patent GB-1206601-A (GB)
Title: Waste treatment for phosphorous removal
Inventor: WADDLETON NORMAN
IPC: C02F3/12
Filed: 1967-10-02
Abstract: 1,206,601. Treating sewage. N. WADDLETON (Dorr-Oliver Inc.). 2 Oct., 1967, No. 44688/67. Heading C1C. The effective biological aeration of sewage to remove phosphorus is preceded by a chemical precipitation of a calculated amount of phosphorus to leave only that phosphorus which can be efficiently dealt with by the biological process.
Patent GB-907278-A (GB)
Title: A two-speed device
IPC: G21C7/12
Filed: 1960-12-30
Abstract: 907,278. Screw-and-nut mechanisms. UNITED STATES ATOMIC ENERGY COMMISSION. Dec. 30, 1960 [June 22, 1960], No. 4475/60. Class 80 (3). Screw-and-nut mechanism which allows twospeed feeding of a safety plug 40 into a nuclear reactor 42, comprises a member 14 having screwthreaded engagement internally with an inner non-rotatable screw 11 and externally with a threaded recess in fixed housing 13, the screw threads being of different pitch and of opposite hand. On rotation of the member 14 by a reversible motor 20 through gearing 18, 22, a follower cup 24, attached to an arm 38 on a piston rod 36 supporting the safety plug 40, follows the upward movement of the inner screw 11 until a flange 30 on the cup 24 abuts the member 14 and upward movement continues at a slower rate governed by the external screwthread of the member 14. A key 12 prevents rotation of the inner screw 11. A piston 32, attached to the rod 36, is located in a cylinder 34 to which fluid pressure is supplied through ports 48 or 50. When the plug 40 is to be slowly withdrawn from the reactor, the line 48 is vented so that the plug descends under its own weight. When an emergency occurs, highpressure air is supplied to the upper end of the cylinder 34.
Patent GB-1094329-A (GB)
Title: Forging manipulator
IPC: B21J13/10
Filed: 1965-10-22
Abstract: 1,094,329. Forging manipulators. DANGO & DIENENTHAL KOMM GES. Oct. 22, 1965 [Oct. 23, 1964], No. 44821/65. Heading B3H. A forging manipulator comprises a main carriage 1 movable at a uniform speed having mounted thereon a sub-carriage 7 carrying the workpieee gripping jaws 11 and having separate drive means 10 which cause it to remain stationary during forging and return to its initial position on the main carriage between forging strokes. The main carriage is mounted on wheels 2 moving along rails 3 and is driven by gears 13 engaging toothed racks 12; the gears 13 are actuated by motor 14 through gearbox 15 and gears 16. Sub-carriage 7 is mounted on rollers 8 of an intermediate frame 6 connected by linkage 5, 5<SP>1</SP> to a cylinder 4 which effects parallel lifting and lowering of the sub-carriage 7. The latter is moved longitudinally relatively to the main carriage 1 by stationary pistons 9, Fig. 4 (not shown) working in double-acting cylinders 10. During an actual forging stroke pressure oil is supplied to cylinders 10 by a positive displacement pump 32, Fig. 4 (not shown), driven by gearing from the gears 16, whereby the subcarriage is moved at the same speed as the main carriage but in the opposite direction and thus the jaws 11 remain stationary relatively to the forging press. Between forging strokes the sub-carriage is restored to it initial position by pressure oil supplied through valve 20 by pump 27 and nitrogen-filled accumulator 25. The discharge line 22 to reservoir 28 also includes a low-pressure nitrogen filled accumulator 24. At mid-strobe of the sub-carriage 7 a limit switch reverses the valve 20 to produce positive retardation of the sub-carriage. The movements of the main carriage 1 and subcarriage 7 are fed into a differential gear box 36, Fig. 6 (not shown), whose differential output is shown on an indicator 44 and is fed into a digital computer which corrects the speed of the main carriage. The workpiece is rotated, usually in steps of 45 degrees, by an hydraulic motor 35, Fig. 5 (not shown) fed through a reversing valve 20a to produce positive retardation. Hydraulic control circuits are described. Reference is made to the carriage have an hydraulic drive.