baber/WOPTO huggingface dataset:
Patent GB-144609-A (GB)
Title: Improvements in distributing terminals for ignition magnetos
IPC: F02P1/00
Filed: 1920-02-18
Abstract: 144,609. Fabriques des Montres ZÚnith, (Successors of Fabriques des Montres ZÚnith, G. Favre-Jacot, et Cie). June 11, 1919, [Convention date]. Rotary distributors.-The fixed terminals comprise a tube e nested in an insulating block band a current reclining rod f screwed into the tube so that it may be adjusted in position or readily exchanged for another of either kind described. This rod may be co-extensive with the tube, as shown to the left of Fig. 1, where it constitutes an adjustable spark gap with the rotating drum a, or a spring and carbon brush h may occupy a part of the tube as on the right of this Figure. The insulating block is removable and retained in position in its seating by a spring blade l.
Patent GB-1129975-A (GB)
Title: Production of alkylated benzenes
IPC: C07C2/68
Filed: 1966-02-04
Abstract: 1,129,975. Tetra-alkyl benzenes. GELSENBERG BENZIN A.G. 4 Feb., 1966 [9 Feb., 1965], No. 4989/66. Heading C5E. 1,3-Dimethyl-4,6-diisopropyl benzene and 1,4-dimethyl-2,5-diisopropyl benzene are produced by alkylating m-xylene and p-xylene, respectively, with propylene in the liquid phase at a reaction temperature below 90‹ C., the catalyst being anhydrous AlCl 3  in amount less than 0À0075 mols per mol. of xylene.
Patent GB-899580-A (GB)
Title: Electric motor-driven constant tension support hangers
IPC: F22B37/20
Filed: 1959-02-13
Abstract: 899,580. Pipe supports. GRINNELL CORPORATION. Feb. 13, 1959 [Feb. 25, 1958], No. 5038/59. Class 99(2). [Also in Group XXXV] In a hanger for supporting pipes subject to vertical movements within a limited range, a lever-actuated switch controls the movement of a motor-driven jack so as to maintain the tension in the hanger constant. As shown, a motor 16 drives a worm-wheel 24, the hub of which has a female thread 38 engaging a screw 36. The screw carries a fixed arm 70 on which is mounted a switch 77. A lever 48, fulcrumed at the end of the screw, balances a load 62, connected by a support-rod 56, against the compression of a spring 66. Variation in spring compression outside of predetermined limits moves a plunger 78 to actuate the switch 77 controlling the motor 16 so as to raise or lower the screw 36 to maintain the tension in the support rod 56 constant. In a modification the spring 66 is replaced by a counterweight and the lever 48 is shaped so that the effective lever arm at which the load acts is reduced with increase in tension.
Patent GB-1535314-A (GB)
Title: Vacuum gauges
IPC: H01J41/08
Filed: 1975-02-06
Abstract: 1535314 Ionization manometers BOC INTERNATIONAL Ltd 14 April 1976 [6 Feb 1975] 5070/75 Heading HID A high-vacuum ionization gauge of the coldcathode Penning type comprises a source of charged particles situated inside the gauge but outside the discharge chamber 7 on the side remote from the inlet 31 for gas or vapour. The discharge chamber is defined by cylindrical cathode members 8 surrounding the end of an anode rod 16 which extends through a glass seal 26. A radioactive source may consist in a coating of thoria on a shield 28 protecting the glass seal 26, or it may consist of a wire made of the radioactive isotope of nickel arranged in an internal circumferential groove of the container 2. Such a wire may comprise a core of non-radioactive nickel with a coating of radionickel covered by a further coating of inert nickel.
Patent GB-1328475-A (GB)
Title: Esters their production and their use in perfumery
IPC: C11B9/00
Filed: 1972-02-03
Abstract: 1328475 Esters INTERNATIONAL FLAVORS & FRAGRANCES Inc 3 Feb 1972 [8 Feb 1971 5 Nov 1971] 5113/72 Heading C2C [Also in Division A5] The invention comprises compounds of the formula where R 3  and either R 1  or R 2  is alkyl of 1-5 carbon atoms, the other of R 1  and R 2  being hydrogen. The compounds are prepared by reacting a compound of the formula with an oxidizing agent containing chlorine.
Patent GB-542025-A (GB)
Title: Apparatus for electrical welding
IPC: B23K9/20
Filed: 1940-03-19
Abstract: 542,025. DashpotS. NELSON, E. F. March 19, 1940, No. 5118. (Class 108 (iii)] [Also in Group XXII] In a portable apparatus for electrically welding studs &c. (see Group XXII), the interval during which the arc is sustained is varied by an adjustable dashpot consisting of the housing 54 containing chambers 101, 102, 103 for oil. The chamber 101 is provided with an exit 113 controlled by an adjustable needle valve 116 and an inlet 104 both communicating with chamber 103. The inlet 104 is not closed until after a ram 29 has completed its strike so allowing a quick striking of the arc. The welding period is varied by adjustment of the needle valve. The chamber 102 is vented and contains a spring pressed plunger 106 to accommodate fluid forced from the bore 101. In another form, Fig. 6, a dashpot piston 861 is provided with a disc valve 93<SP>1</SP>. The dash pot cylinder 761 is connected to a surrounding chamber by ports 81<SP>1</SP>, 821 and also by a port 831 controlled by an adjustable needle valve 102<SP>1</SP>. During striking of the arc the piston forces the oil through ports 811 into the chamber and through openings 82<SP>1</SP> into the space behind the piston to equalise the pressure on both sides of the piston. When the ports 81<SP>1</SP> are closed the oil is forced through the restricted port 83<SP>1</SP>. A further dashpot, Fig. 18, for resisting the movement of an armature (not shown) comprises a recessed housing 202<SP>11</SP> covered by flexible diaphragms 206<SP>11</SP>, 207<SP>11</SP> secured by pressure plates 211<SP>11</SP> and screws 212<SP>11</SP> and having one or more byepass openings 214<SP>11</SP> normally closed by spring pressed check valves 216<SP>11</SP> and a bleeder passage 217<SP>11</SP> controlled by a tapered blocking valve 218<SP>11</SP> on a threaded stem carrying a graduated dial. A hub 221<SP>11</SP> is secured to the upper diaphragm which is normally depressed by the weight of the armature. When the armature is raised reduced pressure is caused in the upper chamber so that air passes through the passage 217<SP>11</SP> past the valve 218<SP>11</SP> to create resistance to the upward movement of the armature.
Patent GB-548733-A (GB)
Title: A process for the separation and recovery of hydrocarbons of different degrees of saturation
IPC: C07C7/11
Filed: 1941-04-21
Abstract: 548,733. Distilling hydrocarbons. FIFE, J. G. (Shell Development Co.). April 21, 1941, No. 5138. [Class 32] [Also in Group IV] Hydrocarbons of different degrees of saturation contained in hydrocarbon vapour mixtures of relatively narrow boiling range are separated by bringing the vapour into contact with a liquid solvent comprising acetonitrile, propionitrile, nitromethane, nitroethane, or nitropropane to dissolve selectively. the hydrocarbons of lesser degree of saturation which are then recovered from the solution. The vapour may be scrubbed by the solvent in a spray, packed, or bubble-plate tower or the solvent may be caused to flow down a distillation column as the distillation proceeds. The process may be applied to the separation of acetylene from ethane or ethylene, ethylene from ethane, propylene from propane, butadiene from butylenes, butane &c., butylenes from butene, pentadienes such as isoprene from fractions containing five carbon atoms, cyclopentadiene from cyclopentane or pentanes &c.
Patent GB-101387-A (GB)
Title: Electrically Indicating the Presence of Saline, Alkaline, or Acid Impurities in Feed Water used for Steam Generators and for other purposes.
IPC: G01N27/06
Filed: 1916-04-08
Abstract: 101,387. Crockatt, W. C., and Bromell Patents Co. April 8, 1916. Resistances, measuring.-Saline, acid, and alkaline impurities in water for steam-generators and for other purposes are tested for by con. necting an electrolytic cell, containing the liquid, in series with an indicating-device of comparatively high resistance, to a source of direct or alternating current of approximately constant pressure. In the arrangement shown, the indicating-device is a lamp L which gives no appreciable light unless impurities are present. A volt-meter V in shunt to the cell G gives additional indications A relay electro-magnet controlling a bell circuit may be placed in series with the cell; if the lamp is then dispensed with, the electro-magnet is designed to have high resistance. Samples of the liquid may be tested separately, or the liquid may flow continually through the cell.
Patent GB-673227-A (GB)
Title: Improvements in or relating to toy cap pistols
IPC: F41C3/08
Filed: 1950-03-01
Abstract: 673,227. Toy pistols. DIE CASTING MACHINE TOOLS, Ltd., and MILLS, A. R. Dec. 18, 1950 [March 1, 1950], No. 5226/50. Class 132 (iii) In a toy cap pistol of the kind firing caps carried on a strip, depression of the trigger 15 causes a strip finger feed 18 and a hammer member 25 to be operated. Simultaneously a chamber cylinder 31 is rotated a sixth of a revolution by the upward movement of an arm 34 which is caused to engage one of six radial ribs on the rear face of the chamber cylinder 31, and member 33 tilts forward to bring a flange 38 against the lower edge of arm on 30, thus preventing arm 34 from swinging downwards. At the end of the trigger depression stroke, cylinder 31 has completed a sixth of a revolution, and upon release of the trigger, arm 34 tilts rearwardly to ride over the next lower radial rib as arm 30 moves downwards, after which the next firing operation may take place. A stop pin 39 limits the rearward movement of member 33 when the pistol is broken and a felt friction washer 40 is provided for the rotatable cylinder 31.
Patent GB-286714-A (GB)
IPC: A61H7/00
Filed: 1928-02-20
Abstract: 286,714. Raymazyk, J., and Haselmeier, W. March 10, 1927, [Convention date]. Massage. - A massage appliance of spherical or substantially spherical shape provided with projections on its surface, is pivotally mounted on a handle so as to be movable in all directions and is preferably detachable. In the form shown an indiarubber massage element a formed with conical projections b is mounted on a core c detachably connected to a handle f by a ball joint d, e or other form of universal joint. The conical projections b may be replaced by variously arranged comb-like ribs, and the handle shown may be replaced by an angular or a jointed handle.
Patent GB-1449763-A (GB)
Title: Method of and apparatus for cutting up board material
IPC: B28D1/04
Filed: 1974-02-05
Abstract: 1449763 Vertical board saw KARL M REICH MASCHINENFABRIK GmbH 5 Feb 1974 [6 Feb 1973 1 Dec 1973] 05356/74 Heading B5L In a method of cutting up board material while arranged in a substantially vertical plane, successive longitudinal strips 5<SP>11</SP> of required width are cut horizontally from the bottom of the board material, and each strip is displaced relative to the remaining board material and divided vertically into pieces of required lengths before the next longitudinal strip is cut off. As described a board is supported on a substantially vertical stand 10 and support rollers 3. The board is cut horizontally by a circular saw 2 as a saw carriage 1 is moved along a rail 12, and the board is held during cutting, above the line of cut, by pneumatic or hydraulic clamping devices 6. After cutting, the longitudinal strip 5<SP>11</SP> is moved laterally against an adjustable stop 4 and cut into lengths by vertical movement of the saw 2, which has now been swung about a joint 16 for vertical cutting. The remaining board material 5<SP>1</SP> is then released and lowered on to the rollers 3 for further cutting. The lowering means may be brackets carried by the pistons of pneumatic or hydraulic cylinders mounted adjacent the clamps 6 or, as shown in Fig. 4, may be brackets 22 moved along guides 20 by chains 28 driven upwardly by a motor 24. and lowered under gravity under the control of a disc brake 34, 36. One of the clamps 6 is preferably carried by a laterally adjustable support 181, and the clamps 6 may also be vertically adjustable. Means may be provided for driving the cut strips 5<SP>11</SP> against the stop 4. For light workpieces the clamps and vertical conveyers may be constituted by a vertically movable cross-member provided with suction devices. Conveyer means may be provided to move the cut strip into a plane parallel to that of the rest of the board prior to the vertical cutting.
Patent GB-556937-A (GB)
Title: Ball and socket unit
IPC: B60D1/06
Filed: 1942-04-21
Abstract: 556,937. Vehicle couplings. LE TOURNEAU, Inc., R. G. April 21, 1942, No. 5361. Convention date, July 20, 1941. [Class 103 (v)] [Also in Group XXV] A ball and socket unit (particularly for use as a connection between tractor of trailer units) comprises a socket, having a body 8 with a central opening 9 for receiving the ball 3 and communicating with which opening is a tapped bore receiving plugs 10 and 11 having ball seats 12. The ball 3 is mounted by integral trunnions 4 in a yoke 1 at the end of a draft member 2 and the plug 10 is formed at the end of another draft-member 13. Dust caps 22 as described in Specification 556,965 may be fitted.
Patent GB-290386-A (GB)
Title: Improvements in and relating to the control of the supply of gas to burners
IPC: F23Q9/00
Filed: 1927-02-25
Abstract: 290,386. Anderson, J., and Alder & Mackay, Ltd. Feb. 25, 1927. Closure members, rotary disc. -An improved or modified form of the gas control valve described in Specification 1675/14, comprises a disc with peripheral ratchet teeth h and a boss i in the face of which are formed radial grooves and an annular passage k around the central bearing j, the face being ground to fit a ground seating d formed on a casting b carrying a vertical barrel a and a shoe c for attachment to the drum of a clock controller. The seating d embodies a sunk part p with gas inlet port q and raised outlet ports e and f leading respectively to main and bye-pass burners r, t, the closure members, Fig. 3, being attached by a central screw stud threaded into the boss g, a spring under the head of the screw pressing the flanges into contact. The ratchet disc being rotated, at intervals, by clockwork &c., gas is supplied to the main and bye-asps burners alternately, the radial grooves l being so arranged that one port e or f is partially uncovered before the other is wholly covered. Specification 13009/04 also is referred to.
Patent GB-1034583-A (GB)
Title: Mask for a self-containing underwater breathing apparatus
IPC: A62B9/02
Filed: 1964-02-10
Abstract: 1,034,583. Face masks. BENDIX CORPORATION. Feb. 10, 1964 [Feb. 18, 1963], No. 5447/64. Heading A5T. A face mask 28 adapted to be used with a self-contained underwater breathing apparatus comprises a housing 30 having a neck portion 38 to which is connected an air supply regulator 16, and a face receiving edge 34 of a size to cover solely the mouth and chin of the wearer. The air regulator 16 is connected to the neck 38 by conduit 26 which fits in the neck and is held there by collar 56, and to the supply tank 14 by line 18 (Fig. 1, not shown). The air regulator has outlet valve 21. The mask 28 is held on the face by straps 70 and by bar 58 which is held by the teeth of the wearer. The bar 58 is held in neck 38 by conduit 26.
Patent GB-467752-A (GB)
Title: Improvements in fire escape ladders
IPC: E06C1/56
Filed: 1936-02-24
Abstract: 467,752. Flexible ladders. RYNER, H. Feb. 24, 1936, No. 5448. [Class 20 (ii)] An emergency fire escape ladder is made of asbestos cords and is provided at one end with two metal rings through which gimletlike tools are passed to anchor the ladder to a window sill.
Patent GB-935304-A (GB)
Title: Method of treating sludge residual from an alkaline oxidation of lignosulfonic acid compounds
Inventor: GRAIG DAVID
IPC: C07C51/41
Filed: 1961-02-14
Abstract: Methods are described whereby vanillin, acetovanillone, lignin derivatives, calcium oxalate and other products may be recovered from the residual sludge obtained when a lignosulphonic acid compound, e.g. sulphite cellulose lye, is oxidized under alkaline conditions, lime being used as the alkali, as described in Specifications 683,093, 683,094 and 683,095.  In general, the sludge is treated with sodium carbonate solution, the treatment being optionally assisted by aeration with carbon dioxide, and calcium carbonate is then filtered off; the filtrate is then acidified, vanillin and acetovanillone are extracted from the filtrate with an organic solvent, and the filtrate is then further acidified to precipitate a wholly or partly desulphonated lignin substance (useful, in the form of its sodium salt, as a dispersant), the filtrate from which may be converted into calcium oxalate by reaction with lime.  Optional modifications in the process include (1) treatment of the initial sludge with a gas containing free oxygen under pressure, to improve the filtration rate of the calcium carbonate, (2) precipitation of lignin substances before extraction of vanillin and acetovanillone, and (3) slurrying of the initial sludge in an aqueous medium containing dissolved lignosulphonic acid compounds, e.g. an aqueous solution of sodium carbonate in sulphite cellulose lye, which may previously have been treated to reduce its fermentable sugar content.  U.S.A. Specifications 2,104,701, 2,399,607, 2,489,200, 2,721,221 and 2,788,273 and Canadian Specification 552,789 also are referred to.
Patent GB-671583-A (GB)
Title: Improvements in or relating to terminal constructions for the end caps of capacitor containers
IPC: H01G4/224
Filed: 1950-03-06
Abstract: 671,583. Mounting terminals. BRITISH THOMSON-HOUSTON CO., Ltd., ROBINSON, T. F., and DYER, G. H. Dec. 11, 1950 [March 6, 1950], No. 5599/50. Class 38 (i). The end cap 1 of the metal container of a capacitor is provided with two terminals 3, 4 which are mounted at least partly in a single insulating base 2 which is provided with a recess 10 adapted to accommodate a charge dissipating means. Preferably, the terminals are held in recesses in the base 2 by tubular rivets 5, 6 which also secure the base to the end cap, and the base recess 10 contains the chargedissipating device, e.g. a non-inductive discharge resistance which may be of carbon. In a preferred form a resilient washer 8, e.g. of silicone rubber, insulates the rivet head 7 from the end cap.
Patent GB-1500809-A (GB)
Title: Radial active magnetic bearing having a rotating drive
IPC: F16C39/00
Filed: 1975-02-10
Abstract: 1500809 Automatic control of position LICENTIA PATENT VERWALTUNGS GmbH 10 Feb 1975 [9 Feb 1974 30 Nov 1974] 5602/75 Heading G3R The rotating field of a (three phase) dynamo electric machine has superimposed upon it a field which functions as a radial active bearing and is adjusted in response to a measurement of the air gap, the two fields having pole pairs differing in number by one. In the embodiments the drive field 1 has two poles per phase and the bearing control field 26 four, but these may be interchanged for starting. As shown, the gap is measured by three differential pairs of sensors, each functioning as a transformer with a movable core (radial movement of the rotor). They have primary windings 2, 3 (for the R phase) energized from drive current transformers ST or the drive current directly and secondaries 4, 5, star connected, with auxiliary secondaries K connected all in series between the star point of the main secondaries and that of a series tuned damping network 30 ... 32, through which the sensors control the bearing field 26. The windings K are to damp unwanted modulation of the restoring force which can give rise to rotor oscillations. The damping circuits are connected through phase adjusting bridge networks 20-22 and amplifiers 23 ... 25 supplying the bearing field 26. In an alternative embodiment, Figs. 3 and 4 (not shown), the two fields are provided by a single set of bifurcated windings, energized from a twelve phase transformer in two and four pole configuration for the drive and bearing fields respectively. Instead of the separate gap sensors shown the (separate) control windings themselves may be used. Figs. 5-7 (not shown), illustrate three such arrangements using feedback amplifiers as "negative resistance elements". The feedback may be non- linear. For elongated rotor machines two bearing arrangements according to the invention are used, but it is explained that for short rotors one bearing only is required, and the rotor pole face can be convex and the stator face convex or saddleshaped. Where the rotor is external and the stator internal, the rotor and stator pole faces may be spherical.
Patent GB-764382-A (GB)
Title: Improvements in electrostatic machines
IPC: H02N1/08
Filed: 1955-02-25
Abstract: 764,382. Electrostatic machines. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Feb. 25, 1955 [Feb. 27, 1954], No. 5726/55. Addition to 655,474. Drawings to Specification. Class 35. In an electrostatic machine as described in the parent Specification, the conducting bars forming the charge carriers are embedded in solid insulating material. In the squirrel-cage form, the conductors are embedded in a cylinder of insulating material, while the radial form is similarly insulated. The stator plates are at graded potentials, e.g. through the use of semiconducting connectors.
Patent GB-763337-A (GB)
Title: Metal ore reduction process and apparatus
Inventor: STROHMEIER GEORGE
IPC: C21B13/00
Filed: 1953-03-02
Abstract: 763,337. Extracting metals. BOHLER & CO., AKT.-GES., GEB. March 2, 1953, No. 5781/53. Classes 72 and 82(1) Reduction of finely divided ores, in particular those of iron, copper, nickel, cobalt and chromium, which are reducible by hydrogen or by hydrogen and carbon monoxide, is effected in suspension with the gaseous reducing agent. Either solid or liquid metals can be obtained. The stream of gas separated from the reduced material is regenerated by carbon-containing substances and, if necessary, purifying agents and is recycled so that a gas circulation independent of any extraneous source of gas is maintained. Powdered ore is blown into a reduction chamber A after preheating at B, and meets reduction gas. The used gas and the reduced metal pass into precipitators D, E and electro-static filter F, the metal being recovered an cooled at G by air which thus preheats B. The gas is recycled by pump I, carburized at K and de-sulphurized at M by quicklime. In a modification (not shown) the metal-laden gas is heated to precipitate molten metal
Patent GB-804133-A (GB)
Title: Improvements in the manufacture of oscillatory springs
IPC: C22F1/10
Filed: 1955-02-25
Abstract: Oscillatory springs for temperature compensated oscillatory mechanisms are formed from a ferromagnetic alloy low in, or having no, iron content, the thermo-elastic coefficient of which is defined by the relationship <FORM:0804133/II/1> in which c 0 is the saturation value of the thermo-elastic coefficient, C is a material constant, E0 has a value of 15000-22000 kgs./mm2, <FORM:0804133/II/2> has a value 1x10-8-40x10-8 per  DEG C., the alloy having been treated to give it an internal stress #si such that c  becomes approximately zero.  Such treatment may be cold working, permanent superimposition on the spring of an external tensile or compressive force or a magnetic field, incorporation of a precipitation hardening componnent and subsequent heat treatment, ordering by heat treatment within the range 300-500 DEG C., heating to a high temperature and quenching where the material is capable of undergoing a change of crystal structure or heating followed by a controlled rate of cooling.  The alloy may be one containing nickel as base and up to 3 per cent beryllium and up to 12 per cent chromium.  In an example, an alloy of nickel 95 per cent, beryllium 2.1 per cent, and chromium 2.9 per cent is cold worked above 90 per cent and then heat treated at 500 DEG C. for twenty minutes.