baber/WOPTO huggingface dataset:
Patent GB-819572-A (GB)
Title: Improvements in or relating to electric water heaters
IPC: F24H9/20
Filed: 1955-01-20
Abstract: 819,572. Electric water heaters. PRICE, W. Jan. 16, 1956 [Jan. 20, 1955], No. 1719/55. Class 39(3) In an electric heater for the rapid heating of a flow of water, cold water passes from a supply pipe 12 via a needle control valve 13 to a switch 14 operated by water pressure, the water then passing through a pipe 15, the primary portion 49 of a heat exchanger 16 and through a pipe 17 to a lower heating chamber 18 connected at 19 to an upper heating chamber 20. The heated water then passes through a trap 22 into the secondary portion 48 of the heat exchanger when it flows through a pipe 21 to an outlet 23. The pressureoperated switch 14 comprises inlet and outlet ports 27, 28 which open into an annular recess forming a chamber 29 closed by a flexible diaphragm on which bears a disc-shaped head 36 of a plunger 35. A lever 40 pivoted at 38 and carrying an adjusting screw 41 has two arms 46 for engagement with the operating plungers of micro-switches 45 which control heating elements 50. The screw 41 bears on the plunger 35 and the lever is urged downwardly by a compression spring 43 adjustable for tension. When the water is turned on at the valve 15 the diaphragm and head 36 are displaced upwardly and water flows into the chamber 29. The restriction imposed by the outlet port 28 and pipe 15 results in a rise in pressure in the chamber and the plunger is caused to rise still further to positively close the contacts of the switches 45 and to energize the heating elements. An indicator lamp may be provided which lights when the switch contacts are closed. The heating chambers and heat-exchanger may be arranged vertically. According to the Provisional Specification the heating element is formed into a helix.
Patent GB-1524718-A (GB)
Title: Tension controllers for elastic thread or sheet
IPC: B65H23/188
Filed: 1977-04-18
Abstract: 1524718 Web tensioning FOG RIDDIFORD 18 April 1977 [19 Jan 1976] 01892/76 Heading B8R  Device for maintaining constant tension in a moving elastic web 10, Fig. 1, or filament comprises a roller 12 about which the web is trained for frictional engagement therewith, the roller being mounted for lateral displacement (self-aligning bearing 16, or magnetic bearings 46, 48, 50, Fig. 9) by the tension induced in the web against a bias (spring 20) acting in opposition to the tension, there being provided a frictional restraint (brake) 24 effective to increase a counter-torque on the roller as the tension induced in the web decreases.
Patent GB-796394-A (GB)
Title: Lower end construction for fibre drums
IPC: B65D8/04
Filed: 1957-01-18
Abstract: 796,394. Fibre drums. CONTINENTAL CAN CO., Inc. Jan. 18, 1957 [Feb. 8, 1956], No. 1990/57. Class 66. The lower end portion of a fibre drum wall 5 is curved inwardly to form a breast 6, then downwardly and outwardly to form an internal rib 7, outwardly to form an upper annular wall 8, downwardly and inwardly underneath the wall 8 to form a lower annular wall 10, downwardly again and finally outwardly to form a flange 12 underlying the wall 10 and about half its width. A sheet metal bottom 13 is provided with its peripheral portion folded upon itself at 14 to form a double ply 15 which is received between the upper and lower walls 8 and 10, its remaining portion tightly engaging the drum wall at 11, 12, 8, 10, 9, 7 and 6. The drum wall 5 can include a liner 26 of polyethylene or the like positioned at its lower end between the wall 5 and the bottom 13 ; the bottom 13 can also include a liner, Fig. 3 (not shown), the peripheral portion of which underlies the wall liner 26.
Patent GB-1311372-A (GB)
Title: Photographic method for producing a cathode ray tube screen structure
IPC: H01J9/227
Filed: 1971-01-15
Abstract: 1311372 Colour television tubes RCA CORPORATION 19 April 1971 [27 Jan 1970] 20705/71 Heading H1D A process for producing a multi-dot or like screen for a cathode-ray tube comprises forming on the faceplate a layer with opaque regions in the pattern of the dots or the like; coating the surface with photo-sensitive material, exposing the material to light through the faceplate and the areas between the opaque regions, the light being scattered to expose material near the periphery of the opaque regions; and developing and removing the unexposed material so that the remaining portions form a negative of the dot pattern with apertures smaller than the original opaque regions. In one example the faceplate is coated with gelatin and ammonium dichromate and exposed three times through a shadow mask; the exposed coating is saturated with an alcohol solution of nigrosine black dye and developed to leave a pattern of opaque dots 16À5 mils in diameter. An aqueous solution containing manganese oxalate, polyvinyl alcohol and ammonium dichromate is applied over the screen and exposed through the faceplate; the particles of manganese oxalate scatter the light so that portions of the film behind the opaque dots are exposed, leaving unexposed dots of about 13 mils in diameter which are removed with a spray of water. The coloured phosphors are deposited in known manner over the dot areas and aluminium is deposited over the phosphors, and finally the structure is baked at 400-450‹ C. in air to remove volatile matter, and this process converts the manganese oxalate to black manganese oxide. In a modification the opaque dot pattern is formed from polyvinyl alcohol-sodium dichromate which is exposed and developed; an aqueous solution of nigrosine dye is applied and allowed to dry and a heavy metal salt such as barium acetate is sloshed over the dye to insolubilize the dye on the exposed areas, the dye over the remaining areas being washed away. Alternatively the opaque pattern may be formed of silver which is coated with a photo-resist which is selectively exposed. In an alternative process for scattering the light (Fig. 7, not shown) the opaque pattern is coated with a clear photopolymeric film which in turn is coated with a light-scattering layer of silica particles. Alternatively a reflective surface such as paper may be placed behind a clear photo-polymeric film (Fig. 8, not shown). The retained film areas must be blackened, and this may be achieved by coating the exposed film with opaque material in a binder before it is developed.
Patent GB-1355632-A (GB)
Title: Food injection system
IPC: A23B4/28
Filed: 1973-01-15
Abstract: 1355632 Injecting food SWIFT & CO 15 Jan 1973 [14 April 1972] 2087/73 Heading A2E A method of and apparatus for dispensing selected measured quantities of a liquid material for injection into a food item, for example a turkey, comprises filling the liquid into a metering means, arresting the filling when the quantity of liquid in the metering means reaches a selected quantity, and locking the metering means against further filling; connecting the metering means to the food item to be injected, unlocking, and fully emptying said metering means. The metering means may comprise a cylinder, with associated piston which serves to fill and empty the cylinders. If desired the food item may be weighed and the amount of liquid so selected so as to be a given percentage of the weight, such comparison may be effected electrically by means of a potentiometer attached to the scales and a comparison potentiometer driven by the filling mechanism of the metering means.
Patent GB-579463-A (GB)
Title: Improvements in or relating to still heads
IPC: G01N25/14
Filed: 1944-02-07
Abstract: 579,463. Still heads. CORNING GLASS WORKS. Feb. 7, 1944, No. 2207. Convention date, March 2, 1943. [Class 32] A still head comprises several condensing surfaces, all arranged in equivalent geometrical relation to a cooling medium, means for returning all of the condensate from some of such surfaces as reflux, and condensate collector means arranged to receive all the condensate from at least one surface as product, the vapors to be condensed having similar or equivalent paths to all the surfaces. The surfaces are preferably arranged in parallel. A form suitable for plant use, Figs. 6, 7, has twenty-four tubes 12 supported by two discs 16 between which cooling fluid flows. The condensate from seventeen of the tubes 12 is returned as reflux. The lower ends of the remaining seven tubes are shaped to form drip points 13 from which the condensate is collected by funnels 15. The condensate collected by four of these funnels is united and may either be removed as product through line 21 or returned as reflux, according to the setting of valve C. Similarly, the condensate from two other of the funnels 15 is directed into line 21 or returned as reflux by valve B. Likewise, the remaining funnel directs condensate into line 21 or returns it as reflux through valve A. By adjusting valves A, B, C reflux ratios in the range 23:1 to 2.43:1 may be obtained. The still head shown in Figs. 4, 5 is made of glass and is suitable for the laboratory separation of materials which start to decompose below their boiling points. Guide ridges 51 are arranged on the outer surface of the condenser 50 which can be rotated about a vertical axis within the fitting 60. A saw-tooth skirt 54 forms a continuation of the base of the outer surface of the condenser and gathers the condensate from the strips of surface between the guide ridges: thus the drops from any one of the strips can be directed into the product line 64, the reflux ratio being determined by the fraction of the condensing surface between the particular guide ridges converging over the internal opening of line 64 at the time. A rod 55 diverts some of the condensate into the device 61 where it is reboiled by means of an electric element in the cavity 62, thus making possible the determination of the equilibrium temperature between the boiling condensate and its vapor with a thermocouple introduced into the thin-walled cavity 63.
Patent GB-860032-A (GB)
Title: Improvements in and relating to buoys
IPC: B63B22/02
Filed: 1959-01-21
Abstract: 860,032. Buoys. GARLAND, N. Jan. 21, 1959, No. 2239/59. Class 24. A buoy (Fig. 1) for mooring ships is provided with a shackle device comprising a ball 7 filled with lubricant, shackles 14 for the ship's rope, and sea-bed cable 16. The three connections to the ball are each made by pivot pins 24 and 17 so as to give two degrees of freedom, the lubricant serving to grease the pins 17. Stops 27 limit the swivelling movement. Restrainer 37 (Fig. 6). Alternatively, cable 16 may be connected to ball 7 through restrainer 37, the ball being connected thereto at 16a, the restrainer serving to limit the "rise" of the ball 7. The restrainer may likewise be a disc or ball. Mooring system (Fig. 9). Ships VI, V2 are secured to buoys A, B, C, D by cable 44, 49, the buoys being tethered to the sea bed by cables 34. Specifications 485,173, 771,644, 779,569, 779,970 and 781,634 are referred to.
Patent GB-1312222-A (GB)
Title: Screw piston feed device
IPC: B29C45/52
Filed: 1971-01-19
Abstract: 1312222 Extrusion screw valve BATTENFELD Gebr 19 Jan 1971 [3 Feb 1970] 2527/71 Heading B5A In an extrusion machine, e.g. for dough or synthetic plastics materials, wherein the material is conveyed to the front of the screw as it rotates during retraction thereof, and is then extruded on advancement of the non-rotating screw, the screw 2 is provided with a non-return valve ring 8 which engages therewith at a pair of diametrally opposed groove and peg connections 13, 14 (respectively provided along the tapering screw nose and on the ring 8, or vice versa) which constrain the ring 8 to rotate with the screw 2 and guide it for axial displacement with respect to the screw 2, between a sealing abutment with the screw at 10, 7 during advancement of the screw, and an abutment therewith at 12 during rotation of the screw 2 when material flows to the front of the screw 2 through an annular gap 9 between the screw 2 and ring 8 and openings 11, either around the ring 8 or around the screw tip 4 in the abutting region. The grooves and pegs 13, 14 are provided with radial clearances 16 through which material flows to effect purging, and purging between lateral clearances 15 of the pegs and grooves 13, 14 is effected by inclining the pegs and grooves 13, 14 at an opposite angle to the screw axis to that of the screw web 3, so that the pegs and grooves 13, 14 come into engagement on opposite sides during rotation of the screw, and during advancement thereof.
Patent GB-149021-A (GB)
Title: Improvements in chains for stentering and like machines
IPC: D06C3/04
Filed: 1919-02-01
Abstract: 149,021. Buckley, E. W. Feb. 1, 1919. Tentering.-In the links of tentering - machine chains, passage of lubricating oil to the top side of the chains is prevented by making a metal-tometal joint under continuouslyapplied pressure between the upper end of each coupling-pin and a face on the upper portion of the link as described below. In one form, the upper end a, Fig. 2, of the pin is of reduced diameter so as to leave a shoulder c either at right-angles to the axis of the pin or of conical formation, and this shoulder is forced into contact with a corresponding face on the underside of the top arm f of the fork of the link h, or in a recess therein, by riveting over the end of the pin on the top surface of the arm f, with or without a washer k. The washer may be plain, as shown, or it may be dished or resilient, cracked partly through at one or more points n, Fig. 5, from the central hole o towards the edge, cut entirely through at one point, or made in halves. The washer may be received in a recess in the top of the arm f. The bottom end of the pin may be provided with a flange which may enter a recess in the lower arm of the fork. In another form, the upper end of the pin is screwed and engaged by a nut, and it may also be riveted over the nut; or the screwed end may be engaged by a bush w, Fig. 8, screwed internally and externally with threads of different pitch and engaging a screwed hole in the arm f, a hexagonal flange 2 being provided. The screwed parts may be slightly conical. A similar screwed connexion may be used at the bottom end of the pin, the parts being formed to push the pin upwards. The upper reduced end of the pin may be formed with a circumferential groove s, Fig. 7, into which a cracked or split washer k may enter, or the lower end of the pin may be provided with a circumferential groove opposite to a corresponding groove in the hole in the lower arm, the grooves co-acting to receive a spring washer tending to push the pin upwards. According to the Provisional Specification, the upper end of the pin may be received in a recess of the same diameter in the top arm, the upper face of which is intact.
Patent GB-752660-A (GB)
Title: Mould release agent
IPC: B29C33/60
Filed: 1954-01-27
Abstract: Mixtures of silicone oils and the products described in Specification 366,916, obtained by reacting ethionic acid or its anhydride, or a hydroxylated or halogenated derivative of ethane sulphonic acid with a higher fatty acid or derivative thereof, are employed in the form of aqueous emulsions as mould release agents in the moulding of plastics and rubber articles.  Examples describe mixtures and emulsions of (1) 2-3 parts silicone oil and 1 part of the reaction product of oleic acid chloride and b -hydroxy ethane sulphonic acid; (2) 35 parts of a 40 per cent aqueous emulsion of a silicone oil and 7 parts of the reaction products of oleic acid chloride and the sodium salt of b -hydroxy ethane sulphonic acid; (3) as in (2) but using the reaction product of coconut oil and ethionic acid; (4) as in (2) but using the reaction product of a mixture of fatty acids having 6-12 carbon atoms and the sodium salt of hydroxyethane sulphonic acid; (5) as in (2) but using the reaction product of the sodium salt of ricinoleic acid and the sodium salt of chloroethane sulphonic acid.ALSO:Mixtures of silicone oils and the products described in Specification 366,916 [Group IV] are used in aqueous emulsion as mould release agents in the moulding of plastic and rubber articles.  The said products are obtained by reacting ethionic acid or its anhydride or a hydroxylated or halogenated derivative of ethane sulphonic acid with a higher fatty acid or derivative thereof. In examples 1 part of a said product according to Specification 366,916 [Group IV] is mixed with up to seven parts silicone oil and emulsions formed which may be diluted to 0.5 to 1 per cent concentration.
Patent GB-277858-A (GB)
Title: Mixing and feeding mechanism for cotton
IPC: D01G7/04
Filed: 1927-01-28
Abstract: 277,858. Colmogoroff, T. Jan. 28, 1927. Feeding openers &c.-In the mixing of cotton the bales 46, Fig. 1, are fed to a bale breaker 44 mounted on rails to travel over a number of vertical bins 38, the required quantities of cotton being fed through holes into the bins. The lower portion of the bin is arranged at an angle to give a slope slightly greater than the angle of friction between cotton and iron, and is closed by a lattice 5, which removes the material and deposits it in the hopper feeder 66. The feed lattice comprises pins 1, Figs. 3, 5, secured to bars 21 mounted on a flexible sheet 5. The sheet is supported by wheels 8 on shafts 9 - - 12. Channel bars 16 mounted on cross bars 14, 15 are arranged between the lines of pins. The bar 14 is adjustable vertically to enable the height to which the pins project through the bars 16 to be adjusted, and the height at the front to be different from that at the rear. The bar 15 may also be adjustable. The shafts 9, 10, 11 are driven by worm and bevel gearing from a shaft 19, Fig. 1, operated by a main shaft 26. A feeler 67 in the hopper 66 controls the belt 24 driving the shaft 19 to stop the lattice when the hopper is full. The cotton in the bin may be dried by air blown in through vents 58 in a duct 59. Dust and moisture may be withdrawn through screened openings 60 leading to suction ducts 62. Dust from the bale breaker is withdrawn through a flexible pipe 51 and duct 52.
Patent GB-1423001-A (GB)
Title: Tyre mounting and demounting machine
IPC: B60C25/132
Filed: 1973-01-19
Abstract: 1423001 Tyre mounting and demounting machine FMC CORP 19 Jan 1973 2801/73 Heading B7C A tyre; changer comprises a frame for receiving and' supporting a wheel, two bead-breakers 82, 88, and a power source 84 coupled, for a bead breaking operation, to the bead'-breakers via a linkage, the linkage being such that, when the. power source is actuated, the bead offering the less resistance will break before the other bead is displaced from its seat. Termination of the axial movement of the bead-breakers occur when lever 106 engages frame member 188 (for breaker 88) and when arm 92 engages frame member 112 (for breaker 86). The upper-breaker may be removed to an inoperative position and the lower breaker may be pivoted to an inoperative position. The upper breaker includes a rack 154 selectively engageable with a tooth 156 in dependence on the wheel size. The machine also comprises a rotatable post 50 for receiving at its upper end a tyre mount-demount tool 52. The powersource comprises a cylinder 126 which is movable relative to piston-rod 138, when the latter is held stationary by a stop member 174, toactuate the bead' brakers. Pivoting of support 184 to its Fig. 7 position, due to removal of the upper bead breaker from tyre engagement to its inoperative position in which pad 186 is depressed by the lower end of the arm 166, results in the assembly 114 preventing movement of the cylinder, and the stop member 174 being removed from its piston-rod blocking position to allow movement of the piston-rod and rotation of the post due to engagement of a rack 140 on the rod with a pinion secured to the post. Such rotation with the tool 52 mounted on the post enables the tyre to be removed from the wheel. The tool 52 may also be used similarly to mount a tyre on a wheel.
Patent GB-680897-A (GB)
Title: Improvements in rubber springs and coupling members
IPC: F16F1/50
Filed: 1949-02-02
Abstract: 680,897. Rubber-sandwich springs. SPENCER MOULTON & CO., Ltd., G., MOULTON, A. E., and VARGA, O. H. Jan. 26, 1951 [Feb. 2, 1949], No. 2853/49. Class 108 (iii). A rubber spring comprises a plurality of assembled rubber sandwiches (Fig. 3), the plates 2, 3 of each of which are provided with lugs or projections 4, 5 angularly displaced to each other so that one set of projections may be engaged by one of the load-applying members 21, 22, and the other set may be engaged by the other of the load-applying members 23, 24. The projections have pairs of perforations adapted to receive one or other of pairs 14, 15 of bolts on which the respective sets are assembled and to which they are clamped by nuts 16 and spacing washers 17. A bolt 20 passes through central apertures in the sandwiches and serves to retain the load-applying members 23, 24 and 21, 22 should the rubber or its bond to the plates fail. As shown, adjoining plates of adjacent sandwiches are both strung on the respective bolts 14 or 15. Alternatively only one of two adjoining plates may be apertured, the two plates being interlocked with each other. Alternatively to the bolts 14, 15 the plates may be gripped by clamps, bolted or otherwise secured to the load-applying members. In a modification, the projections are in the form of sheet-metal arms and precompression of the rubber is applied by a central tie-bolt. The several arms of a set are riveted to a rubberbushed attachment eye of a load-applying member. The arms may be disposed to provide a suitably rising or falling spring rate. Friction discs may be interposed at the ends of the spring or between each sandwich. The invention is applicable to the springing of motor-cycle front and rear forks and for wishbone and rigid-axle suspension of motor vehicles. Specification 632,521 is referred to.
Patent GB-480911-A (GB)
Title: Improvements in and relating to construction of quay walls
IPC: E02B3/06
Filed: 1937-02-01
Abstract: 480,911. Quay walls. COMPAGNIE INTERNATIONALE DES PIEUX ARMES FRANKIGNOUL SOC. ANON. Feb. 1, 1937, No. 2869. Convention date, Feb. 28, 1936. [Class 68 (ii)] A quay wall is constructed of two superposed parts each comprising hollow precast concrete shells, the lower shells being filled with suitable material and solidly anchored in the ground by foundation knife edges 6 and the upper shells being hollow to act as storage chambers. The lower shells are provided at the top with a girder 8 and cornices 9 carrying upward projections 11 and are strengthened by perforated lateral walls 5 and if necessary by solid end walls. The upper shells are provided with solid and perforated transverse walls and, on the water side, have parallel vertical walls 18, 19 suitably cross braced, the space between them being filled with concrete. The upper shells are provided with a channel 24, having a permeable wall 26 on the land side to collect leakage which is discharged by pumping and have a channel 15 at the bottom. They have an opening in the ceiling 21 closed by slabs 22 and covered with earth &c. which serves as a bed for a roadway or railway track 32. The interior of the upper shells may be rendered fluid-tight by a metal or other covering.
Patent GB-878482-A (GB)
Title: Vibrating or tamping apparatus for earth and the like
IPC: E01C19/38
Filed: 1960-01-27
Abstract: 878,482. Soil-stabilizing apparatus. MASCHINENFABRIK BUCKAU R. WOLF A. G. Jan. 27, 1960 [Jan. 29, 1959], No. 2940/60. Class 68(1). [Also in Group X] The motor-carrying, upper frames c of associated soil-vibrating or tamping machines are releasably connected together by laterally arranged, universally movable connecting elements e, f of which the parts f are, preferably, constructed of rubber.