baber/WOPTO huggingface dataset:
Patent GB-444358-A (GB)
Title: Improvements in and relating to processes for the production of alkali nitrates
IPC: C01D9/04
Filed: 1935-01-15
Abstract: In the production of sodium or potassium nitrate by reaction between the corresponding chloride and nitric acid the reaction solution is substantially freed from chlorine by precipitation as cuprous chloride by the action of cuprous oxide with or without a small amount of metallic copper, or of a mixture of cupric oxide and metallic copper.  Alternatively, cupric oxide may be dissolved in nitric acid and this solution be reacted with a suspension of finely divided copper in a solution of alkali chloride.  Before the alkali nitrate solution is evaporated, any cupric salts in solution may be eliminated by the addition of alkali carbonate or freshly precipitated cuprous oxide.  From the cuprous chloride cuprous oxide may be regenerated by milk of lime or at boiling temperatures by a suspension of ground calcium carbonate or dolomite; or by treatment with steam at an elevated temperature when hydrochloric acid is also obtained.  If a mixture of cupric oxide and copper is required, one half of the cuprous chloride is treated with steam and air, and the other half reduced in a current of hydrogen.  The Specification as open to inspection under Sect. 91 contains also the following subject-matter.  The carrying out of the process by treating cuprous oxide with nitric acid and adding common salt to the suspension of metallic copper in nitric acid so obtained.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1208871-A (GB)
Title: Apparatus for winding sheet material
IPC: B65H19/22
Filed: 1969-01-09
Abstract: 1,208,871. Winding webs. FAMATEX G.m.b.H. FABRIK FUR TEXTILAUSRUSTUNGS-MASOHINEN. 9 Jan., 1969 [19 Jan., 1968], No. 1437/69. Heading B8R. Apparatus for winding sheet material 39 comprises two parallel spaced rollers 17, 41 forming a nip 56 in which a roll 134 is wound on a rod 21, a guide 52 being provided at each end of the roller pair for engaging a respective end of a rod, the guides 52 being pivotable about a fixed axis 22 to move an engaged rod 21 between a rolling position in the nip 56, a cutting position and a discharge position, and at least one of the rollers being pivotable simultaneously with the guides 52 to facilitate rollchange. As shown, a plate 26 carries the guides 52 and the roller 41 so that all can pivot about the axis 22 when the piston rod 82 of an actuator 83 is retracted. In operation, when the roll 134 has reached its desired size the pistonrod 82 is moved downwards to that the guides 52 and the roller 41 pivot clockwise to increase the gap between rollers 17 and 41. This movement releases a new rod 21 from a magazine 19, the new rod falling on to the web 39 for rotation by the first roller 17. A cutting mechanism 88, including an electrically heated wire 111, is then actuated so that the web is severed between the rolls 17 and 41, (Figs. 3, 5 and 6, not shown). The leading end of the cut web 39 is wound round the new rod 21, while the pistonrod 82 is further retracted until the guides 52 form an inclined plane from which the full roll 134 can drop on to a conveyer (Fig. 4, not shown). The cutting mechanism 88 and the roller 41 together with the guides 52 are then returned to the positions shown in Fig. 2, thereby completing one winding cycle.
Patent GB-689745-A (GB)
Title: Improvements in or relating to gas control valves
IPC: F16K5/02
Filed: 1950-01-20
Abstract: 689,745. Valve accessories. CALVERT, R., and NUTTALL, E. Dec. 18, 1950 [Jan. 20, 1950], No. 1548/50. Class 135. A conical-plug gas-valve has an axial outlet 16 for direct connection to a mixing chamber, e.g. as described in Specification 687,662, [Group XI], and a pilot passage 23 leading, under the control of an arcuately grooved portion 21 of the plug, to an outlet 25. A manually-releasable, spring detent (not shown) arrests movement of the plug at the position in which the pilot passage only is open.
Patent GB-561820-A (GB)
Title: Improvements relating to electric storage batteries
IPC: H01M50/51
Filed: 1943-01-30
Abstract: 561,820. Accumulators. NIFE 13ATTERIES, Ltd., LEVIN, A., and THOMSON, W. S. Jan. 30, 1943, No. 1610. [Class 531 An alkaline or other accumulator comprises a pair of cupped sheetmetal body parts a, b, a layer of active material e, f in each part, and means for uniting the parts, either integral with one of the parts as in Fig. 1, or consisting of a separate shell k as shown in Fig. 2. In Fig. 1 the part b is arranged within the part a and is spaced therefrom by a ring c of soft rubber which is compressed to seal the cell when the free edge of part a is turned inwards as at a<1> to retain the part b in position. The part b may be formed with a hollow boss d serving as a contact to engage the flat part a of an adjacent cell. In Fig. 2 both parts a and b are similar in shape and are each formed with a boss d, a separate shell k being turned over as at m, n to press the parts a, b against a separating and sealing ring c. In Fig. 3 the boss d has a hole o closed by a disc p of soft rubber through which a hollow syringe needle can be inserted to replenish the electrolyte, the perforation r so formed serving as a vent for the escape of gas. Fig. 4 shows two cells, the part a of the upper cell being. formed with a shallow cylindrical socket u engaged by a spigot v secured to the part b of the lower cell. A number of cells may be connected in series in a tubular holder, which may be threaded internally to receive the threaded part a of each cell, or the units may be connected by welding or by screw and nut. The active materials may be nickel hydroxide in part a and cadmium or iron oxide in part b, which may be in powder in a thin perforated envelope, or may be in disc form, or of porous metal loaded with active material by electro-deposition &c., or the active material may be electro-deposited directly on the parts a, b.
Patent GB-747212-A (GB)
Title: Improvements in or relating to mountings for bearing raceways
IPC: F16C35/067
Filed: 1954-01-19
Abstract: 747,212. Ball bearings. SKF KUGELLAGERFABRIKEN GES., [formerly VEREINIGTE KUGELLAGERFABRIKEN AKT.- GES.]. Jan. 19, 1954 [Jan. 29, 1953], No. 1645/54. Class 12 (1). A mounting for a bearing race 24 comprises a thinwalled bearing housing 27 in which the race is press-fitted, and both housing and race are formed of ferrous material, the yield point of the material used in forming the housing being lower and the wall thickness thereof being smaller than the corresponding values for the race member. The press fit is such as to cause plastic deformation of the housing and elastic deformation of the race member. An inner race may be press-fitted upon a thin-walled sleeve in a similar manner. Specification 742,384 is referred to.
Patent GB-845711-A (GB)
Title: Process for the treatment of granular polyamide materials with gaseous agents
IPC: C08G69/46
Filed: 1957-01-16
Abstract: In a process for drying and after-condensation of granular polyamides with a hot inert gas, the gas stream is divided, one part being used to entrain the granules, and to circulate a stream thereof in counter flow with the other part of the gas.  In a vessel (2), Fig. 1, containing a downwardly moving bed of the granules, fed in from a <PICT:0845711/IV(a)/1> hopper 10, a vertical pipe 1 is mounted with the lower end above the bottom of the vessel.  Hot gas enters a pipe S and entrains granules which are carried up the pipe, and are thrown on to the bed by a deflector plate 4.  Part of the treating gas also passes upwards through the bed.  The used gas passes to an exit 3, filter 8, condenser 9, cooler 19, to a re-heater 6 and circulating pump 7.  The gas used is preferably oxygen-free nitrogen heated at 80 DEG  to 250 DEG C.  In examples, moist granular polyhexamethylene diammonium adipate or poly-e -caprolactam of mean grain size 2-4 mm., are treated for several hours with nitrogen at 186 DEG C.  Water content is reduced from 10-11% to 1-2%, intrinsic viscosity increased from 1,5 to 2,5, and molecular weight from 12,000 to 40,000.ALSO:In a process for drying and after-condensation of granular polyamides with a hot inert gas, the gas stream is divided, one part being used to entrain the granules and to circulate the stream thereof in counterflow with the other part of the gas.  In a vessel 2 Fig. 1, containing a downwardly moving bed of the granules fed in from a hopper 10, a vertical pipe 1 is mounted with the lower end above the bottom of the vessel.  Gas enters a pipe S <FORM:0845711/III/1> and entrains granules which are carried up the tube 1 and are thrown on to the bed by a deflector plate 4.  Part of the treating gas also passes upwards through the bed.  The used gas passes through an exit 3 to filter 8, condenser 9, and cooler 19 to re-heater 6 and pump 7. In modifications the deflector plate may be replaced by a large diameter tube open at the base, or by a pipe through which a downward jet of air passes.  The gas used is preferably oxygen-free nitrogen heated at 80 DEG  to 250 DEG C.  In examples, moist granular polyhexamethylene diammonium adipate, or poly-e -caprolactam of mean grain size 2-4 mm. are treated for several hours.  Water content is reduced from 10 to 11% to 2%, intrinsic viscosity increased from 1.5 to 2.5, and molecular weight from 12,000 to 40,000.
Patent GB-1021851-A (GB)
Title: Method and apparatus for heat-finishing glass ribbon or sheet
IPC: C03B18/04
Filed: 1964-01-15
Abstract: In the production of heat-finished glass, a sheet or ribbon of glass is supported upon a fluid bed at a temperature at which the glass flows, the edge portions of the ribbon or sheet being supported at a different level from that of the central portion. A continuous ribbon of glass 14 is fed into a tank 18 which contains three molten metal baths 26, 16, 28.  The central bath 16 is considerably wider than either of the other two, is separated from them by walls 30, 32 and is at a higher level.  The molten baths are heated to a temperature at which the glass will flow. The edges of the ribbon overlie the side baths 26, 28 and when hot they contact these baths and flow to reach their equilibrium thickness.  Thus the ribbon thickness at its centre may be maintained different from the equilibrium thickness. As the ribbon progresses down the tank 18 its surfaces become flat and fire-polished.  The ribbon is cooled, so that it may be removed without damage, by passing it over successive zones 50a, 50b &c. of the molten baths of progressively cooler temperatures.  To heat treat the upper surface radiant heaters are fixed in the tank roof.  A <PICT:1021851/C1/1> <PICT:1021851/C1/2> <PICT:1021851/C1/3> <PICT:1021851/C1/4> heated inert gas is maintained above the molten metal (e.g. tin or tin alloy) to prevent oxidation. Alternatively the fluid supports may be gaseous. Beds of modules 108 above the ribbon and 102, 104, 106 below are supplied with hot gases to allow the ribbon to flow. The module beds comprise a plenum chamber 114 which is fed with gas under pressure, which gas is then conveyed to orifices 132 in nozzles 126 within open chambers 110.  The orifices 132 ensure that a diffused flow of gas flows into the chambers 110 below (and above) the ribbon.  Since exhaust chambers 116 are between each chamber 110 the gases exhaust within the support zone, and thus have virtually no lateral flow.
Patent GB-601674-A (GB)
Title: Improvements in or relating to plate-like structures
IPC: E04C2/34
Filed: 1945-01-23
Abstract: 601,674. Compound sheet materials. GABO, N. Jan. 23, 1945, No. 1781. [Class 140] [Also in Groups X and XXIII] A composite metal, plywood, plastic &c. plate for roofs, ceilings &c. comprises a pair of opposed sheets having integral or applied pyramidal or other protuberances, the protuberances of one sheet being accommodated between the protuberances of the opposite sheet and interlocking therewith so as to prevent separation after assembly. The. opposed sheets 11a, 11b, Fig. 1, may have squarebased pyramids 12a, 12b pressed from the sheets or formed separately, e.g. by casting or moulding, and secured to the sheets. Projections 13 are formed on the sloping edges of the pyramids of one sheet so that these may shape into corresponding recesses 14 in the pyramids of the opposite sheet when the sheets are assembled to form the composite plate. The pyramids may be of truncated form and may have corrugated sloping faces. According to a modification, one sheet is formed with parallel dovetail grooves 17, Fig. 6, into which longitudinal corrugated strips 18, Fig. 7, are slid, the strips being formed from blanks, Fig. 8, having alternate wide and narrow sections corresponding to the width of the dovetail grooves at the base and at approximately mid-height. Tongues 20 on the strip 18 engage in longitudinal corrugations 19 in the walls of the grooves 17. A strengthening net of strands 21, 22 may be applied to take up a position in which it is retained by the projections and recesses 13, 14 on the individual sheets. The whole structure may be enclosed by flat or curved sheets.
Patent GB-268075-A (GB)
Title: Improvements in & relating to umbrellas & sunshades
IPC: A45B25/06
Filed: 1926-01-22
Abstract: 268,075. Drury, H. N. Jan. 22, 1926. Holding closed.-The tip of the ribs lie in grooves b in a ring a and are retained by a sliding ring e which is retained on the ring a by means of abutments d.
Patent GB-446640-A (GB)
Title: Improvements in or relating to starting or stopping devices for auxiliary apparatus or compressors
IPC: F04B49/10
Filed: 1935-07-30
Abstract: 446,640. Variable - - throw cranks. KNORR-BREMSE ART - GES., 9, Neue Bahnhofstrasse, Lichtenberg, Berlin. July 30, 1935, No. 1941/36. Divided out of and addition to 443,760 under which a Specification was laid open to inspection Feb. 18, 1936. [Class 80 (iii)] [See also Group XXVI] Relates to variablethrow eccentrics, as described in the parent Specification, in which an eccentric 5 is rotatable on a crank 4 by means of a vane 7 on the eccentric, movable in a casing 8 on the shaft by means of fluid pressure admitted through a port 14, controlled by a valve 12. According to the invention the spring acting on the valve 12 is dispensed with, and a stem on the valve carries a piston 20, the centrifugal action of which tends to keep the valve 12 in its inner or closed: position. A passage 21 connects the two sides of the piston 20.
Patent GB-196664-A (GB)
Title: Improvements in sizing and quenching cups and cones for roller bearings and like annular metal articles
IPC: C21D9/40
Filed: 1922-01-23
Abstract: 196,664. Imray, O. Y., (Timken Roller Bearing Co.). Jan. 23, 1922. Bearings; hoops and rings.-Apparatus for sizing and quenching cups and cones for roller bearings or other annular metal articles comprises a table 1 on which is mounted a pan 3 containing a pair of combined cup-holders and quenching devices 4 upon which the hot cups, brought from the hardening furnace with a bore of slightly less diameter than is desired for the finished cup, are placed and engaged by the vertically movable plugs 30 which are alternately raised and lowered with an adjustable stroke by a system of double toggle links. The quenching liquid, which is directed against both the external and internal surfaces of the cup, is supplied by a main-supply pipe 13, provided with a control valve 14, to the vertical pipes 19 and thence to the holders 4, the pipes 19 containing valves 16 which are operated by the downward movement of the plugs. As one plug is lowered and enters a cup, the latter is expanded and quenched, whilst the other plug rises and the engaged cup is automatically removed by means of a stripper, which is loosely sleeved on the lower end of the plug, striking against the underside of the cross arm 33 of the framework of the table. The flutings 43 on the tapered surfaces 30<a> of the plugs are preferably helical or inclined, as shown in Fig. 7, and when cones are being treated the tapered die block is provided with similar flutings. Specification 144,184 is referred to.
Patent GB-862280-A (GB)
Title: Method and apparatus for producing and collecting slivers of textile fibres
IPC: D01G21/00
Filed: 1959-01-20
Abstract: 862,280. Spinning yarn, carding engines. HANSEATISCHE MOTOREN G.m.b.H. Jan. 20, 1959 [June 27, 1958], No. 2078/59. Drawings to Specification. Classes 120(1) and 120(3) In a method for continuously forming a sliver from several carding machines, the slivers are assembled from the carding machines in a duct, and fed through a device for automatically controlling the composite sliver thickness, thence to an intersecter gill box and collecting means, e.g. an automatic winder forming tops or sliver cans, comprising automatic change over means to ensure continuous collection.
Patent GB-121033-A (GB)
Title: Improvements in or in connection with Tanks or Containers for "Ripening" or "Souring" Milk or Cream for use in the Manufacture of Butter, Margarine and the like.
Inventor: REVIS CECIL
IPC: A01J15/00
Filed: 1918-02-06
Abstract: 121,033. Revis, C., Bolton, E. R., Downs, C., and Bellwood, R. A. Feb. 6, 1918. Stationary batch-mixers with reciprocating stirrers.-Relates to tanks or containers for ripening or souring milk or cream for use in the manufacture of butter, margarine, &c. The agitating and cooling device consists of a series of parallel pipes C, Fig. 1, connected to transverse pipes or boxes C<1>, C<2> communicating with inlet and outlet pipes C<3>, C<4> for supplying brine to the pipes C. The pipes C<3>, C<4> are carried by blocks d, d<1> which are moved up and down in vertical guides D, D' at the ends of the tank by rods g, g<1> operated by crank-plates G, G<1> carried by a longitudinal shaft F arranged below the tank and driven by worm gearing from the driving-shaft E. The jacket space a of the tank is supplied with hot or cold water, or both, by circulators B, B<1> connected to a supply pipe B<2>. Instead of parallel pipes C, a coil may be used. The covers H, H<1>, Fig 4, are supported at their upper ends on a longitudinal bar J<1> carried by the guides D, D', and at their lower ends have hooks h to engage rails J on the sides of the tank. When used for pasteurizing milk &c., the tank is provided with a. cover made in two hinged portions K, K<1>, Fig. 3, which, when closed, lie flat on the top of the tank. The shafts L carrying the cover portions K, K<1> can be rotated by means of worm gearing M, L<1>, so as to turn the cover portions outwardly to lie flat against the sides of the tank. An inspection door or aperture is provided in one of the cover portions. In a modification, the combined agitator and cooler is moved up and down by means of hydraulic rams working in cylinders.
Patent GB-900219-A (GB)
Title: Receptacle
Inventor: TYSON JOHN HODGSON
IPC: G03B21/54
Filed: 1960-01-20
Abstract: 900,219. Receptacles. HOLLINGSWORTH, MARSHALL & CO. Ltd. Jan. 20, 1961 [Jan. 20, 1960], No. 2123/60. Class 98 (2). A vacuum-formed sheet 1 is such that it can be folded to form a receptacle having two sidewall portions 2, 3, spaced apart by a base portion 4, the side-wall portions having projections such as ribs 5 which, after folding, form supports for articles placed in the receptacle (e.g. microscope slides or photographic plates). One side-wall may be extended to form a lid. The sheet may be of thin plastic, and during the vacuum forming, grooves X-X and Y-Y may be moulded therein to facilitate folding. After the receptacle has been formed, it is placed in an outer cardboard box 6 for support and reinforcement. Two such sheets may be formed in a single operation (Fig. 3, not shown) so as to form a double receptacle. The slides may be placed in the receptacle before or after the latter is placed in the cardboard box.
Patent GB-764237-A (GB)
Title: Electrostatic precipitator
Inventor: BRIXIUS JACOB KARL
IPC: B03C3/86
Filed: 1955-01-25
Abstract: 764,237. Electrostatic precipitation. AIRMAZE CORPORATION. Jan. 25, 1955. No. 2179/55. Class 39(1). An ionizing electrode structure is mounted for ready withdrawal from an electrostatic precipitator cell corisisting of side plates 10a and front grill 11. The ionising wires 31 are strung between brackets 25 which are mounted on a frame 24, and the frame is inserted in guides formed by plates 14b and ears 27 struck up inwardly from the plates 14b. The plates 14b are extensions of the charged collecting electrodes 14, and the sides plates 10a of the cell are members of the grounded set of collecting electrodes 10. The ionizing wires may be formed by a single wire wound back and forth between upper and lower brackets 25. In a modification, Fig. 4, the wire is also wound between front and back notches 35 in the brackets to form a second set of downstream ionizing wires. The distance s between the first set of wires and the grill 11 is given by the formula s = kE<1.5> where E = kilovolts and k = 0À27 for a 0À004 inch diameter wire, and the spacing between parallel wires is from 1À0 to 1À5s. The ionizing wires may be grounded and a charged insulated grill provided just inside of grill 11. Specification 684,194 is referred to.
Patent GB-1061331-A (GB)
Title: Improvements in universal joints
IPC: F16D3/41
Filed: 1965-01-19
Abstract: 1,061,331. Universal joints. S. P. V. PIATTI. Jan. 19, 1965 [Jan. 20, 1964], No. 2343/65. Heading F2U.  In the cross of a Hooke's joint, two of which joints may be connected in series to form a constant velocity joint, a body 3 has intersecting bores 3a into which fork pivot pins 4 are inserted with a frictional fit, and each pin is axially secured in its bore by deformation of body material at the bore outer end into engagement with a reduced diameter portion of the pin. As shown, each pin comprises a circumferential recess 4a located partly within the bore 3a to receive the body deformation; alternatively the recess may be replaced by a step produced by reducing the diameter of the outer part of the pin. Assembly is by firstly aligning the corresponding bores of the body and one of the forks, thrust washers 6 being positioned between opposing body and fork spaces; secondly, passing a pin 4 through each fork bore and pressing it into its associated body bore 3a; and thirdly, deforming the body material into the recess 4a of each pin by the pressing or bumping of a tubular tool which is passed over the pin so that an inclined or rounded lower end thereof engages the body adjacent the pin. Where, as shown, the body 3 is a ring providing a central passage therethough it may be supported internally during pin insertion and body deformation. The body may be preformed at the outer end of each bore with a shallow annular recess with which the tool engages. Finally, needle bearings 5 are inserted. In the embodiment of Figs. 4, 5 (not shown), which is particularly, but not solely, applicable to bodies 3 of soft metal such as zinc base alloy, a ring of steel wire is located in the open end of an annular channel preformed in the body adjacent the outer end of each bore 3a, the ring being forced into the channel by a flat ended tool to deform the body material into the pin recess. The ring may be trapped in the channel to provide additional resistance against displacement of the deformed metal by axial force on the pin.