baber/WOPTO huggingface dataset:
Patent GB-786407-A (GB)
Title: Process for the catalytic hydrogenation of organic nitro compounds
IPC: B01J23/40
Filed: 1956-04-30
Abstract: Organic nitro compounds are catalytically hydrogenated in an aqueous system with the aid of a concentrated noble metal catalyst deposited on an inert support, which has been diluted with an oleophilic carbon having an oil absorption factor of at least 200. The noble metal may be deposited on the support at a concentration of at least 2 per cent by weight and then diluted with the oleophilic carbon to a concentration of 0.01-1 per cent. Suitable carbons are those prepared from e.g. acetylene, i.e. "Furnace Blacks," which are non-porous. Suitable inert catalyst supports are carbon, diatomaceous earth or silica.  The catalysts may be activated with e.g. oxides or hydroxides of iron, nickel, cobalt, aluminium, magnesium, manganese, chromium, vanadium or tungsten, or fluorides of boron and silicon as well as mixtures of these.  Specific preparations mentioned are cyclohexylamine from nitrocyclohexane, b -amino-naphthalene from b -nitro-naphthalene, 5-aminoquinoline from 5-nitroquinoline, 1,5-diaminonaphthalene from 1,5-dinitronaphthalene, p-anisidine from p-nitro anisole, the amine of dinitrostilbene disulphonic acid from the corresponding sodium salt, p-aminobenzoic acid from p-nitro benzoic acid sodium salt and p-aminophenol from p-nitrophenol.ALSO:Catalysts for the hydrogenation of organic nitro compounds comprise a concentrated noble metal catalyst, e.g. platinum or palladium deposited on an inert support, which has been diluted with an oleophilic carbon having an oil absorption factor of at least 200.  The noble metal may be deposited on the support at a concentration of at least 2 per cent by weight and then diluted with the oleophilic carbon to a concentration of 0.01 to 1 per cent. Suitable carbons are those prepared from acetylene, i.e. "Furnace Blacks," which are non-porous.  Suitable inert catalyst supports are carbon, diatomaceous earth or silica.  The catalysts may be activated with oxides or hydroxides of iron, nickel, cobalt, aluminium, magnesium, manganese, chromium, vanadium or tungsten or fluorides of boron and silicon, as well as mixtures of these.
Patent GB-1158774-A (GB)
Title: Inductive Signalling
Inventor: MARTIN ANTHONY WYARD
IPC: G08G1/042
Filed: 1966-03-25
Abstract: 1,158,774. Inductive signalling. E. K. COLE Ltd. 28 March, 1967 [25 March, 1966], No. 13201/66. Heading H4U. In a signalling system of the inductive loop type for imparting information to vehicles on predetermined sections of a road, the receiver on each vehicle is adapted to transmit emergency signals to the loop. The equipment on the vehicle includes a pick-up coil C on a ferrite rod for the amplitude modulated signals of say 40 kc./s. which in the receive position is connected via a switch S to an R.F. stage and detector supplying via a L.F. amplifier TR1 to TR6 a loud-speaker L.S. In the transmit position the switch S is changed over, disconnecting the loud-speaker and connecting a positive feedback circuit via capacitor C1, resistor R1 and capacitor C2 to the base circuit of TR1. Thus the circuit operates as an oscillator whose frequency, say 20 kc./s., is controlled by the resonance of capacitor C1 and pick-up coil C. This signal may be modulated by means not shown. The L.F. amplifier of an existing car radio may be utilized, means being provided, on receipt of a signal by coil C, to switch the input of the audio stages of the car radio to the detector of the 40 kc./s. receiver and also to switch battery power to the appropriate stages of the car radio.
Patent GB-669297-A (GB)
Title: Improvements in machines for cutting non-metallic material
IPC: B28D1/22
Filed: 1949-05-18
Abstract: 669,297. Cutting breeze blocks &c. ROWLEY, A. H., and ROWLEY (LONDON), Ltd., A. T. May 17, 1950 [May 18, 1949], No. 13221/49. Class 124. A machine for cutting breeze blocks, partition slabs and like non-metallic material comprises upper and lower members d, a provided with lines of oppositely disposed cutters or spikes e, one end of the upper member being pivoted on a bracket b and the other ends of the two members being connected by a hand-operated lever-andlink device g, j constituting a toggle mechanism. The cutters e may have chisel edges, or round or square points, and may be detachably or permanently secured to members a, d made of channel-section rails. The provision of a number of pivot holes b', j' enables the depth of penetration of the cutters into the slab to be varied, and the machine adjusted to cut slabs of different thicknesses.
Patent GB-678055-A (GB)
Title: Improvements in or relating to drying apparatus for textile material in tubular form
IPC: D06C5/00
Filed: 1950-05-26
Abstract: 678,055. Stretching tubular fabrics. PASOLD, I. March 15, 1951 [May 26, 1950], No. 13279/50. Class 42 (i). [Also in Group XIII] Apparatus for drying tubular textile material comprises a turntable 1 pivoted on a vertical axis 2 and carrying , at each end a hollow tube 3, 3<SP>1</SP>, the upper ends of which may be brought in succession into register with a guide member 8 and stretcher 9 which may be lowered vertically into operating position to rest upon the upper end of the tube 3 or 31 where it is secured by spring-loaded catches 10, 10<SP>1</SP> pivoted at 11, 11<SP>1</SP> to supporting arms 12, 12<SP>1</SP> depending from the guide member 8 and having inwardly projecting ends 13, 13<SP>1</SP> which engage with a slot 14 formed between spaced flanges 15, 16 on the tube .3 or 31. When in the operative position the lower end of the tube 3 is coupled to a fixed hot air feed pipe 4 by a sleeve member 7 pivoted on a spring. loaded lever 5. The fabric is stacked on a tube 3 and then withdrawn over the stretcher 9 while hot air is blown through the tube 3 and fabric to dry the latter. The arrangement for lifting the guide member 8 from the top of the operative tube while the tubes are exchanged consists of bell-crank levers 17, 17<SP>1</SP> pivoted to a frame 18 by pins 19, 19<SP>1</SP> the lower end of each lever being pivoted at 29, 291 to a further short lever 20, 20<SP>1</SP> having actuating handle 21, 21<SP>1</SP> and carrying a roller 22, 221. Swinging the outer ends of levers 17, 17<SP>1</SP> downwards, moves the lower arms inwards, causing the rollers 20, 20<SP>1</SP> to press the catches 10, 10<SP>1</SP> and disengage the end parts 13, 131 from the slot 14. Pulling the handles 21, 21<SP>1</SP> downwards raises the ends of the levers 20, 20<SP>1</SP> to act on arms 27, 271 on the guide member 8 and lift it away from the tube 3.
Patent GB-967995-A (GB)
Title: Improvements in acoustic attenuating devices
IPC: B64F1/26
Filed: 1960-04-13
Abstract: 967,995. Silencing gaseous currents. P. H. PARKIN. April 26, 1961 [April 13, 1960], No. 13293/60. Heading F1B. Means for attenuating the noise emanating from a source 6 situated above ground level comprises a duct having open input- and output ends 2, 10, and means 3, for locating the input end at or close to the source of noise and means for deflecting the acoustic energy fed into the duct axially to or close to ground level whereby sound in the 150 to 350 cycles per second frequency band is preferentially absorbed by the ground. The inlet 2 is adjusted to the source 6, e.g., an aircraft jet engine, by a cable and counterweight arrangement 3, 4, 13, 14 on a slideway 5 and is connected by a flexible section 7 to a rigid section 8, leading to a further flexible section 9 and to outlet nozzle 10. The assembly is mounted on a wheeled carriage 12 having chock devices 11. The silencer may be located after or surrounded by a conventional muffler.
Patent GB-132944-A (GB)
IPC: G01C21/18
Abstract: 132,944. Horsley, E. C. Nov. 30, 1918. Gyroscopic apparatus.-An erector for gyroscopes comprises a non-rotating plate 6 which is fixed to the casing 3 so as to be normally in a horizontal plane and on which lie balls 9 normally resting in a groove formed by the intersection of conical surfaces 7, 8 so as to be equidistant from each other and from the axis of spin of the gyroscope. Above the plate 6 is a fixed plate 11 in which are formed slots 10 to constrain the motion of the balls. If the gyroscope axis becomes tilted, for example about the axis 4, 4, and in such a direction that the point 14 moves downwards. then the balls are displaced to the position shown in dotted lines in Fig. 2, and their centre of mass is displaced to the point 15. A moment is thus obtained which restores the axis of spin to the vertical. The centre of the erector and the intersection of the gimbal axes need not lie on the axis of spin, so long as the whole system is balanced about the gimbal axes.
Patent GB-133359-A (GB)
IPC: E04B2/72
Abstract: 133,359. Wade, H., (Torcrete Shipbuilding Corporation). June 4, 1918. Concrete vessels.-Reinforced-concrete hulls, decks, bulkheads, partitions, &c. are formed by spraying concrete in successive layers on to a reinforcing-framework, to which are added further reinforcements as the preceding framework becomes embedded. Layens of waterproof or insulating material may be placed between the layers of concrete. The principal framing 20 is shown as metal T-bars, but may consist of wood or concrete or combinations of all these. Vertical bars 22 are threaded through the bars 20 and support horizontal gauge or shear posts 23, which may be corrugated or twisted, and may be bolted or welded in place, and support the layers 26 of wire netting or expanded raetal by means of anchor bans 25. A temporary or permanent inside backing 27 supports the concrete until it sets. Waterproof material 29 may be placed over the first layer of concrete, the second netting 26 is then secured and sprayed with concrete, and so on.
Patent GB-133434-A (GB)
IPC: C10L1/02
Abstract: 133,434. Lopez, A. de-f. Oct. 8, 1918. Motor spirit.-A fuel for internal-combustion engines comprises alcohol partly etherealized, as by bubbling it through a mixture of alcohol and sulphuric acid at a temperature of from 100 to 150‹ C., mixed with from 10 to 40 per cent of unetherealized alcohol and from 5 to 50 per cent of a distilled hydrocarbon oil, the proportions being such as to give a mixture having a specific gravity of from 0.73 to 0.78.
Patent GB-134068-A (GB)
IPC: B63B23/58
Abstract: 134,068. Schermuly, A. W. L. Nov. 13, 1918. Boat lowering and disengaging gear. - The lower blocks of the lowering-tackle of boat lowering and disengaging gear have links which engage upwardly inclined hooks on the boat, the blocks being connected by a lore-and-aft tie-rope which can be lengthened for releasing the hooks. The lower blocks B, Fig. 1, have links h which engage upwardly inclined hooks E on the boat and are connected by a tie C. A link A formed in two parts is connected by a ring c to the tie C and is attached to the rear block B at a. Normally, the part A<2> of the link A is folded over and locked by a pin a<3>. For releasing the boat, the pin a<3> is removed when the part A<2> opens out in line with the link A, thus lengthening the complete tie between the falls and allowing the links b to slip off the hooks E.
Patent GB-514438-A (GB)
Title: Improvements relating to fluid-transmission circuits in variable-pitch airscrews
IPC: B64C11/42
Filed: 1938-05-05
Abstract: 514,438. Screw propellers. BRISTOL AEROPLANE CO., Ltd., and FEDDEN, A. H. R. May 5, 1938, No. 13430. [Class 114] In. variable-pitch screw propellers with hydraulic adjusting gear, a tube within the hollow shaft has a bush which has passages and is ported for communication from the exterior of the shaft with the inner tube and also from behind the bush with the space between the tube and shaft. There may also be an inner tube and further communicating passages in the bush. The crankshaft gear 15 . drives gears 16 on stubs 17 secured to the propeller shaft 11 upon which the propeller 10 is carried and at the forward end is the fixed piston 23 and movable cylinder 19 which through rods 30 move the blades to desired pitch settings. Tubes 145 and' 151 are secured to the piston and to a centre piece 144 and the latter is connected by tubes 136, 137 with a perforated bush 130 at which position the shaft is surrounded by a sleeve 43 with grooves and passages linking up external lines with the bush. Oil under pressure is supplied along the central tubes 137, 145 or between these and the tubes 136, 151 for moving- the cylinder, the control thereof being by a governor unit and booster pump. The latter delivers at two pressures one to the groove 41 and the other to groove 42. For lubricating the gears, oil is passed -to space 143 between the tubes and shaft from the interior of the crankshaft. The tubes engage the centre piece through splines which hold them against relative rotation. When a singleacting hydraulic motor is used the outer tube 151 is removed and the inner tube 145 is replaced by another having a flange which blanks off the space 149 from the outside thereof. For airscrews not hydraulically controlled this single tube. is plugged and the governor unit is removed: - '
Patent GB-166584-A (GB)
Title: Improvements in automatic multiple spindle lathes
IPC: B23B9/02
Filed: 1919-05-28
Abstract: 166,584. National Acme Co., and Smith, O. A. May 28, 1919. Lathes; screwing. - An automatic multiple-spindle machine for making nuts, screws, &c. from bar stock, in which the stock is fed through the work spindle from the rear thereof, has the tools pulled to the work-pieces instead of being pushed and the drills or screwing dies actuated by the same means which operate the feeding of the stock. The machine is driven through a wheel 64<1> from a motor on the bed or by a pulley, a bevel-gear on this wheel driving a train of gears 63, 65, 59, Fig. 4, which drives the worm shaft 51 through a dog clutch 57 and a safety-lever arrangement (not described). The shaft 51 drives a worm sleeve 52 through a change gear train A, and a worm on this sleeve drives a worm wheel 44 on the main cam shaft 23. The worm 44, Fig. 6, is formed of an annulus 43 adapted to be clamped between discs 45, 84 keyed to the shaft and to slip should the tools actuated from the cam shaft encounter any undue resistance. The hollow work spindles are rotated by gears from a gear 33, Fig. 2, on a spindle 30 driven through bevel-gearing 34, 83 from the main driving-shaft 55, which in turn is driven through a change-gear train B from the main driving-wheel 64'. The gear train B may be omitted and the main driving-gear secured directly to the spindle 55. The rods or bars from which the blanks are formed and cut are fed by reciprocating grippers 16 actuated in pairs through stops 76 on rods 17 by a slide 11 reciprocated by a cam 22 on the main cam shaft, stops 77 on these rods being actuated to retract the grippers over the rod ready for further feeding. The rods are fed against roller stops 41<e> adjustably carried by the cross tool slide 72; the stop is removed from the rod as the tools come into operation. The rods are gripped and released at correct intervals by sliding sleeves actuated in pairs by cones and levers from a lever 24 pivoted at 69, Fig. 2, and operated by a second lever 68 secured to the main lever by a. ball and socket connection, which lever is actuated by a cam drum 66. The tool slides are pulled on to the work instead of being pushed, and the main cross tool slide 72 is situated above the work spindles so as to be free from cuttings and oil. The axial tool slide carrying the drills 8<1> and chamfering-tools 9<1>. Fig. 1, is drawn up to the work-pieces by rods 10 actuated by the same slide 11 which actuates the rod feeds. The cross tool slides 72 carrying the forming and cutting-off tools are mounted in a head on the machine, and are pulled to the work by extensions 72<1> operated by levers 70 from a cam 70', adjustable stops limiting the depth of cut, and a spring 38 being provided to retract the slide. The machine is shown for making nut blanks, but for making screws or other blanks the appropriate tools would be substituted for the drills and shaping-tools. The machine bearings may be lubricated from a pump driven from the sprocket wheel 60 fixed to the worm shaft bevel-drive wheel 59, Fig. 4.
Patent GB-665662-A (GB)
Title: Photographic or cinematographic camera
IPC: G03B17/17
Filed: 1949-05-20
Abstract: 665,662. Photographic cameras. MOSCA, R. May 20, 1949 [May 28, 1948], No. 13572/49. Addition to 660,351. Classes 97 (i) and 98 (i). In the photographic or kinematographic camera disclosed in the parent Specification, the axes of the converging mirror 11 and the diverging mirror 12 are inclined by approximately 23 degrees and 12 degrees, respectively, with respect to the axis of the entrance opening 16 of the camera. Preferably, the light-sensitive surface 4 is inclined at approximately 12 degrees with respect to the axis of the opening 16 and the mirrors 11 and 12 have radii of curvature of 70 mm. and 105 mm., respectively. The entrance opening 16 of the camera, which is mounted within a casing 1 having apertures 23 in its front wall 24, is formed by any one of a series of apertures of different diameters provided in a sector 14 mounted on a spindle 15, rotated by a knob 17 having attached thereto a disc 18. Through an aperture in this disc, a number on the wall 24 indicating the diameter of aperture 16 can be read.
Patent GB-514827-A (GB)
Title: Ice cream congealing apparatus
IPC: A23G9/20
Filed: 1938-05-17
Abstract: 514,827. Ice-cream freezers. ROUTH, A. C. May 17, 1938, No. 13581. [Class 29] In apparatus in which the liquid to be congealed is pumped through an externally cooled cylinder 18 and subjected to stirring and scraping action by a rotary inner member 39, the discharge end of the rotary member has an enlarged conical p'art 71 restricting the outlet for the solidified, material which is further restricted by small holes 58 leading to the extrusion nozzle or pipe 52. Metal scraper blades 59 are yieldingly mounted longitudinally in blocks 60 carried on the surface of the rotary member. The blocks have inclined faces 66, Fig. 6, set in a helical line and adapted to move the material against the feed of the pump 10. The mixture is supplied from a churn 1 through a plug valve 70 and air may be admitted through a needle valve 8. The rotor 39 is driven by bevel gear from the pump motor 16 through a shaft 40 having a pronged head 43 inside the cylinder, the other end of the rotor being supported by a tubular boss fitting over the end of the pipe 52. Refrigerant is supplied to a jacket 20 from a plant 35 which may also supply other plant 36, the flow being controlled by a thermal valve 103. The refrigerant jacket is surrounded by air and vacuum jackets 23, 24. The scraper blades may be in sections overlapping longitudinally. Specification 514,828 is referred to.
Patent GB-1426306-A (GB)
Title: Vacuum press
IPC: B30B15/34
Filed: 1974-03-27
Abstract: 1426306 Laminating press SEAL Inc 27 March 1974 [10 April 1973] 13584/74 Headings B5N and B5F A vacuum press comprises a platen assembly 4 comprising a frame, a flexible metal platen 132 supported only at its edges by the frame so that it can flex and also so that it can expand and contract in its own plane in accordance with changes in its temperature, and electrical heater means 140 for heating the platen, a work support assembly 2 comprising a frame and a flexible air-impermeable sheet 40 mounted at its edges to the frame, the platen assembly being connected to the work-support assembly so as to be movable into and out of engagement with the work support assembly and the platen assembly and work support assembly when engaged providing an air-tight work-receiving chamber therebetween with the platen and flexible sheet forming opposite side walls of the chamber, means, e.g. pump 52, for evacuating the chamber so that the atmospheric pressure exterior of the chamber will force the flexible sheet towards the platen and thereby compress a workpiece 230 supported on the sheet, and control means for operating the electrical heater means and evacuating means so that a workpiece in the chamber is heated and compressed. Flexible sheet 40 which may be made from synthetic rubber, e.g. silicone rubber, a plastics sheet or a rubber or plastics coated fabric, may be attached to gasket 51 of resilient heatresistant material, e.g. silicone rubber. Support means 70 located below the flexible sheet 40 for supporting the sheet at a selected height may comprise panel 86 made of asbestos supported by a second frame connected to the frame of the work support assembly by means comprising means for raising and lowering the second frame relative to the frame of the work support assembly. The platen assembly may comprise a rectangular frame covered by member 120 which comprises two thin aluminium plates 124 and 126 separated and secured to honeycomb reinforcing structure 128, flexible metal platen 132, e.g. of steel or aluminium, mounted on the underside of the frame and held in position by retainer strips 134, electrical heating means 140 comprising heating element 142 encased in heat resistant elastomeric material 144 and glass fibre heat insulating blanket 148. The platen is free at its edges to expand and contract in its own plane with changes in temperature and the heater means are preferably arranged so that heat input to the edge regions of the platen exceeds heat input to the centre region of the platen to compensate for radiative heat losses at the edges of the platen. Clamps 64 may be provided to ensure continuous sealing between the side margins of the platen and gasket 51. The press may be used to bond a graphic arts object, e.g. a photograph, to a transparent plastics covering film coated with adhesive and a backing sheet of cardboard, a dry mounting tissue coated on both sides with hot melt adhesive being provided between the graphic arts object and backing sheet.
Patent GB-1222219-A (GB)
Title: Methods of arc stud welding
IPC: B21D9/10
Filed: 1968-03-20
Abstract: 1,222,219. Welding by pressure. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 20 March, 1968 [12 July, 1967], No. 13585/68. Heading B3R. In arc stud welding, a slag forming ring- shaped body 5 is arranged about the stud 6, the stud being capable of moving axially relative to the body, an arc is struck between the stud and work 7, the body not having any arc striking function, the stud is held at a predetermined position spaced from the work for a predetermined time and then the stud is pressed against the work by a stud holding means. The arc is struck by raising the stud from the work 7, the stud is pressed against the work by the stud holding means which is released by a timer and the welding current is cut off after the stud is pressed against the work. The body 5 which is preferably 0À5-3 mm. larger in inner diameter than the stud has eight radial grooves in its lower surface and may be formed of rutile 45%, ferro-manganese 12%, starch 2%, tale 12%, cellulose 5%, potassium -feldspar 20% and calcium carbonate 4%. The body may be pressed and baked or wrapped with a sheet of kraft paper, metal wire net and aluminium foil.