baber/WOPTO huggingface dataset:
Patent GB-748593-A (GB)
Title: Process for the extraction of metallic compounds from naturally occurring saline water
IPC: C01B19/02
Filed: 1951-07-04
Abstract: Metals are recovered from salt solutions, obtained from natural sources, by precipitation as sulphides from concentrated solutions of the salt.  In the example saline mother liquor is treated with a slight excess of sodium sulphide when copper, lead, cadmium, zinc, silver and some uranium are precipitated.  After removal of the precipitate the solution is acidified, for example with hydrochloric acid, and concentrated if necessary.  A slight excess of ammonium sulphide is then added and the solution heated preferably at its boiling point.  A precipitate of sulphur and metals not precipitated by the first treatment (notably comprising uranium) is obtained. Acidification after the first precipitation may alternatively be carried out with sulphur dioxide when a precipitate of selenium, which may be collected, is obtained.
Patent GB-414491-A (GB)
Title: Improvements in and relating to alternating current power circuitbreakers
IPC: H01R13/15
Filed: 1933-06-01
Abstract: 414,491. Heavy-current switches. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. June 1, 1933, Nos. 15918 and 15919. Convention dates, June 1, 1932. [Class 38 (v).] Arc-rupturing devices.- An explosion chamber for liquid-immersed switches having a fixed contact in the end of the chamber and a pressure-relieving valve, is arranged so that the arc is formed within a nozzle which is closed by the valve at that end which is in the end of the chamber and has a tapered opening at that end which projects into the chamber. The nozzle may contain the fixed contact or may form the fixed contact, the arc then forming on the inner surface of the nozzle. The explosion pot a contains a number of baffles i into apertures k in which the movable contact fits closely. The fixed contact e is urged in the contact-making direction by a spring g and is located in a nozzle h of insulation or insulation-covered metal. The opening in the upper part of the nozzle is closed normally by a plate d under the action of springs f, so that when the maximum allowable pressure is exceeded, the arc is enveloped by gases flowing out of the chamber. The blow-out effect is enhanced by the baffles i which concentrate the gas-stream, but in Fig. 1 (not shown) the baffles are dispensed with. The Specification refers also to other constructions of fixed contacts, including a hollow one with openings at the blow-out end normally closed by a valve. The Specification as open to inspection under Sect. 91 contained also (1) the constructions forming the subject of Specification 412,403, and (2) a construction using transverse baffles which are thickened at the orifices. This subject-matter does not appear in the Specification as accepted.
Patent GB-985111-A (GB)
Title: A method of and apparatus for packing fruit in bags
IPC: B65B25/04
Filed: 1962-04-26
Abstract: 985,111. Packaging. IMPROHA N.V. April 26, 1962 [June 9, 1961], No. 15985/62. Heading B8C. A method of packing in bags a predetermined number of e.g. apples, tomatoes or other fruit is characterized in that each bag is so supported and folded while being filled that the fall of the first pieces of fruit is broken in the folds of the bag whereby the distance the fruit falls is kept to a minimum until the bag contains the predetermined amount of fruit. Fruit initially held back by a wall 3 is moved by an intermittently driven conveyer belt 2 into a polyethylene bag 5 taken from a bagmaking machine 4 and held by arms 6, a box 8 having simultaneously moved upwards so that the edge of the bag initially rests thereon, Fig. 2. The box 8 continuous to move upwards with the bag, which has been released by the arms 6, and then. downwardly through a known mechanism 12, where the bag is closed by application of a tie member, to its lowermost position. Here a resilient pawl 11 is attracted by an electromagnet 14, thus allowing the box bottom 9 to fall open through the weight of the bag, which slides on to a conveyer 15. The bottom 9 is then pulled back by a spring 10, the current of the electromagnet is broken, and a further cycle of operation commences.
Patent GB-903452-A (GB)
Title: Improvements in or relating to hinge assemblies
IPC: E05F1/12
Filed: 1961-05-03
Abstract: 903,452. Hinges; counterbalanced lids. FORD MOTOR CO. Ltd. May 3, 1961 [May 19, 1960], No. 15994/61. Classes 65 (1) and 65 (2). [Also in Group XXXII] A boot lid or like closure is mounted on a vehicle body by means of a pair of hinges 12, 13 each comprising a fixed hinge member 16 and a movable hinge member 18 pivoted at 19, and the lid is counterbalanced by a pair of torsion-rods 14, 15 retained in longitudinally-abutting relationships by means such as clips 36, 37, the rod 14 being anchored at its ends to the fixed members 16 and the rod 15 being anchored at its ends to the movable members 18 and the rods having opposed crank portions 34, 35 intermediate their ends to resist turning so that as the lid is closed the rods are placed under torsional stress. The counterbalancing effect is adjusted by means of a wedge 43 which spreads the portions 34, 35 when a bolt 42 is turned. The ends of the rods 14, 15 are formed with crossed-over crank portions 32, 33, respectively, which engage in holes 24, 26 in the hinge members, the ends 27 of the crank portions 33 engaging stops 49 on the members 16 to limit the opening movement of the hinges. The torsion rods are intended to be pre-loaded before they are assembled in the vehicle, and for this purpose a temporary S-shaped clip 44 (Figs. 7 and 8) is provided at each end of the pair of rods, each clip being adapted to overlie the crank portions 32, 33 and to pass under the main portions of the rods. These clips prevent the portions 32, 33 from turning away from each other when the bolt 42 is tightened to apply the preloading, after which the boot lid is held in the raised position and the ends of the rods are inserted into the holes 24, 26. The clips can be removed when the lid is closed a little to take the spring force.
Patent GB-219462-A (GB)
Title: Improvements in chains for suspending electric light bowls
IPC: F16G13/14
Filed: 1923-06-21
Abstract: 219,462. Stokes, F. June 21, 1923. Wire-link, sheet-metal, and ,ornamental chains.-A chain for suspending electric lamp bowls &c. comprises annular discs 1 connected by wirelinks 3, the terminal eyes of which are left unbrazed so that they can be opened and closed by means of pliers for adjusting the length of the chain.
Patent GB-1488296-A (GB)
Title: Process for the recovery of aluminium trichloride
IPC: C01F7/58
Filed: 1975-04-18
Abstract: 1488296 AICl 3  SOC ITALIANA RESINE SpA 18 April 1975 [19 April 1974] 16080/75 Heading ClA AlCl 3  is recovered from a complex with hydrocarbons and hydrogen chloride, by contacting the complex with particulate metallic aluminium at a temperature of from ambient temperature to 100‹ C., whereupon a precipitate of AlCl 3  is produced, which is then recovered. The aluminium metal powder is preferably of size 5-500 mesh (ASTM) and may be activated (either before contact, or in the initial stages of contact with the complex), by surface attack by hydrogen chloride. The mole ratio Al : AlCl 3  complex is preferably 0À2-1À0.
Patent GB-838625-A (GB)
Title: Electroradiography
IPC: G03G5/087
Filed: 1956-05-24
Abstract: 838,625. Electrophotographic processes. RADIO CORPORATION OF AMERICA. May 24, 1956 [June 23, 1955], No. 16159/56. Class 98(2) An X-ray image is obtained by the method of xerography using as the X-ray sensitive coating finely divided photoconductive zinc oxide in an electrically insulating film-forming binder. The coating may be on a paper or other flexible insulating backing. An X-ray image of the object may be obtained directly on the surface of the object itself or on a wrapper or container having the object within, by providing one side of the surface of the object, wrapper or container with the X-ray sensitive coating, providing a uniform electrostatic charge on the coating, exposing to X-rays through the uncoated side which is opposite the coated side, and developing the image on the surface, wrapper or container. Examples are given of the formation of an image on the casing of a transistor or on the skin of a human arm. In the apparatus shown in Fig. 6, the objects to be X-rayed 10 are placed on an endless belt 30 which conveys them past stations which perform the operations of coating one side with the X-ray sensitive coating at 16, drying the coating at 18, charging at 20, exposing through the belt from source 1, developing at 24 and fixing at 26. Alternatively, as shown in Fig. 4, a tape 12 is provided with the X-ray sensitive coating which is charged at 20, the objects 10 being fed on to the belt before exposure and removed after exposure, and the images then developed at 24 and fixed at 26 on to the tape itself. In a further example, the objects are not loaded directly on to the X-ray sensitive tape 12 but are placed on an X-ray transparent belt which passes over the top portion of the tape 12 in synchronism therewith. Provision may be made for coating the tape 12 with the X-ray sensitive coating before the uniform charging step. The developer powder may be applied by a brush such as a camel's hair brush or a " magnetic brush, or by powder cloud or cascade methods. The developer powder may be a polystyrene resin mixed with carbon black and dyes, with a carrier of glass beads or iron powder. Specification 721,944 is referred to. Reference has been directed by the Comptroller to Specifications 774,433 and 798,184.
Patent GB-672670-A (GB)
Title: Arrangement for accelerating electrons and ions
IPC: H05H13/02
Filed: 1948-06-16
Abstract: 672,670. Particle accelerators. AKT.-GES BROWN, BOVERI, & CIE. June 16, 1948 [June 16, 1947], No. 16244/48. Class 39 (i). In a,particle accelerator of the type in which the particles are accelerated by successive interaction with high frequency electric fields, the accelerating frequency may have to be varied for the acceleration of heavy particles, so that the accelerating frequency f B  always corresponds to the frequency fT with which the particles pass through successive electric fields, or to a multiple thereof. It has been proposed to make the accelerating frequency f B  a multiple M of the frequency f T , and to diminish this multiple in steps (M=25, 20, 16 ... say), with increasing speed of the particles. In order to facilitate the catching of the particles in passing from one sub-synchronous state to the next, the time-derivative of the accelerating frequency f B  is made equal, according to the invention, to M times the frequency f T  at the instant of the first agreement of the accelerating frequency f B  with the selected multiple M of the frequency f T . Two accelerating voltages may be used, each produced by a separate high frequency oscillator, these voltages alternately accelerating the particles. As shown, a synchrotron includes four accelerating systems 31-34, each consisting of a coaxial line resonator, connected in pairs to two generators I, II. Frequency modulation of the generators is achieved by means of the segments 56, 57 rotating relatively to the stationary segments 58, 59. Segments 56, 57 are driven by the synchronous motor 60 which is connected to the same A.C. network 63 as excites the magnets for producing the magnetic control field. All the accelerating systems may be connected with only one generator I. The invention is applicable to linear accelerators. Specification 663,816 is referred to.
Patent GB-403302-A (GB)
Title: Improvements in cylinder grinders
IPC: B24B33/08
Filed: 1933-06-06
Abstract: The non-abrasive blocks of a cylinder grinding machine are formed of comparatively friable material such as a die cast alloy containing 93.5 per cent of zinc, 2 per cent of copper, 4 per cent of aluminium and 0.5 per cent of magnesium.
Patent GB-947976-A (GB)
Title: Improved method of separating native albumin from milk
Inventor: TYDEN CARL HILDING
IPC: A23J1/20
Filed: 1962-04-27
Abstract: Albumin is separated from milk, especially skimmed milk, by adding to the milk a water-soluble cellulose ether, preferably an alkali metal or ammonium salt of carboxymethyl cellulose, and then separating the precipitate formed.
Patent GB-496967-A (GB)
Title: Improvements in or relating to piston pumps
IPC: B65D47/26
Filed: 1937-06-11
Abstract: 496,967. Fuel - injection pumps. PRECISION MECANIQUE. June 11, 1937, No. 16327. Convention date, June 11, 1936. [Class 102 (i)] In a fuel-injection pump a spring-loaded piston P is arranged in a bore 9 between the pump cylinder 5 and the delivery valve 7. and the passage 12, provided. with the throttle E, connects both sides of the piston P. As the speed of the pump increases, the pressure difference on the piston P raises it against the spring 10 until the spill ports are open when the piston returns to its seat and produces a partial vacuum in the bore 9 which has to be filled on the next stroke of the pump piston 1 before delivery past the valve 7 commences. The pump delivery therefore decreases with increased speed. The throttling of the passage may be caused by ports or grooves on the pistons 1 or P. In a further modification the passages 12 may be duplicated to produce different throttling effects for either stroke of the piston 1. Fig. 7 shows an arrangement wherein an adapter is fitted between the pump cylinder and delivery valve and comprises a piston P having grooves 17 and a reduced head 18 forming a throttle passage. The devices on each cylinder of a multi-cylinder pump may be arranged to cut out each cylinder successively.
Patent GB-586208-A (GB)
Title: Adjustable support for a lens and lamp used in connection with compasses
IPC: G02B25/00
Filed: 1944-08-30
Abstract: 586,208. Optical apparatus. ESDAILE, E. W. Aug. 30, 1944, No. 16501. [Classes 97 (i) and 97 (ii)] A magnifying lens is mounted on a magnetic compass by a support comprising arms 5, 6 pivoted at 9, 10 to the compass housing 4 so that the height of the lens relative to the compass card may be varied without affecting the focus, of the lens. The line forming the pivots is tangential to the compass card and passes through the lubber line so that the latter is in focus as the lens is pivoted. A lamp 13 is provided. One arm only may be used.
Patent GB-412763-A (GB)
Title: Plate clutches
IPC: F16D13/64
Filed: 1933-06-09
Abstract: 412,763. Friction clutches. HEARD, P., Osgathorpe Cottage, Pitsmoor, Sheffield. June 9, 1933, No. 16549. [Class 80 (ii).] In a clutch wherein a driven plate is adapted to be clamped between a driving member and a presser plate, the driven plate comprises friction annuli 25, 26 arranged on opposite sides of a spider 13 and rigidly secured to each other by rivets 28 which pass through, and are capable of radial movement in, radial slots 24 in the spider. The rivets 28, which are hollow and are expanded in conical holes in the annuli, have radial flanges 29 which engage in the slots. The spider is dished and the annuli provided with slits as described in Specification 412,716. The thickness of the flanges 29 is slightly less than that of the spider.
Patent GB-883400-A (GB)
Title: Improvements in or relating to transport devices
IPC: B60K17/04
Filed: 1959-05-14
Abstract: 883,400. Transporting special loads. LEWIS, E. M. May 16, 1960 [May 14, 1959], No. 16617/59. Class 108(1). A truck for moving heavy loads comprises two end-frames 2 provided with jacking abutments 19 for lifting the base 1 of the load, and two side frames 3 supported on wheels 4, the end frames 2 being releasably secured to the side frames by means of detachable slotted plates 28 engaging behind pins 26 fixed into projections 25 on the end frames 2. One front pair of wheels 4 may be driven by a detachable air motor 5.
Patent GB-1348602-A (GB)
Title: Logging while drilling well tool
IPC: E21B47/18
Filed: 1972-04-11
Abstract: 1348602 Boring earth &c MOBIL OIL CORP 11 April 1972 [16 June 1971] 16645/72 Heading E1F [Also in Division G1] A logging while-drilling well-tool 46 comprises a housing 46a, a motor 55 having a drive shaft 55a rotated at a speed determined by a condition measured by the tool, gearing 59 connecting the drive shaft to a rotary valve 56 generating pulses in the drilling fluid, a clutch 58 between the motor and the gearing, and a flexible coupling 60 between the gearing and the valve, the frequency of the pulses being indicative of the magnitude of the condition. The tool is housed in a drill collar 26 through which the fluid flows downwardly. The gearing is a two stage planatary gear reducer. The tool has a turbine 52 rotated by the fluid and driving a generator 50 applying electricity to the motor. A device 53 connected to strain gauges 54 subjected to the load on the drill bit controls the motor so that the speed of the motor is dependent on the load on the bit. The rotor 56a and the stator 56c of the valve have radial slots at their peripheries, the valve generating pulses the frequency of which varies according to the speed of the motor and the bit weight. (For Figure see next column)
Patent GB-120617-A (GB)
Title: Improvements in or relating to Collision Mats for use on Ships.
Inventor: ELEY CHARLES VICTOR ALBERT
IPC: B63B59/02
Filed: 1917-11-13
Abstract: 120,617. Eley, C. V. A. Nov. 13, 1917. Breach mats.-A collision or breach mat for ships comprises a sheet of rubber or equivalent flexible material 1, a number of flat spring strips 2 fastened thereto, and planks or rigid members 3 secured to the springs. The mat can be rolled up, as shown, and will unroll itself automatically. The rigid members may be reinforced by steel rods or tubes 4, and in the lattar case, two or more mats can be connected side by side, as one mat, by means of pins projecting from one section engaging in the tubes of adjoining sections. For bridging a wide hole, the mat may be attached to vertical girders of channel section suspended over the side of the vessel. The springs may in some cases be omitted, and the mat may be fitted with magnets to maintain contact with the ship's hull.
Patent GB-1377927-A (GB)
Title: Fuel oil additives
IPC: C10L1/22
Filed: 1973-04-06
Abstract: 1377927 Fuel additive DREW CHEMICAL CORP 6 April 1973 [10 April 1972] 16669/73 Heading C5G  An additive for vanadium-containing fuel oils comprises (a) a fuel oil-soluble compound of Mg, Al, Si, Ca, Sr, Ba or mixture thereof, and (b) a fuel oil-soluble compound of Zr or Ti, the components (a) and (b) being present in an amount to provide a weight ratio of Mg, Al, Si, Ca, Sr, Ba or mixtures thereof to Zr or Ti of from 2 : 1 to 15 : 1. A large number of compounds are given including the sulphonates, carboxylic acid salts, carbonyls, phenates, metalloporphyrines and metallocenes. The components (a) and (b) are dissolved in a liquid oil carrier and added to the fuel, e.g. marine diesel fuel, which also contain amines as stabilizers.
Patent GB-595130-A (GB)
Title: Improvements in or relating to fuel systems
IPC: B64D37/16
Filed: 1944-09-01
Abstract: 595,130. Fuel tanks. STEVENS, A. H. (Thompson Products, Inc.). Sept. 1, 1944, 1944, No. 16695. [Class 69 (i)] [Also in Groups XXVI and XXVII] A centrifugal fuel pump 13 is secured by an annular flange 19 to the underside of a fuel tank 10 by studs 22 passing through a self-sealing lining 11 and tapped into an annular member 20. A stiffening member 21 may be inserted in the lining 11. The tank bottom may be thickened in the vicinity of the pump mounting as at 12.
Patent GB-760849-A (GB)
Title: Improvements in and relating to flexible electric conductors and cables
Inventor: COOKE EDWARD INGRAM
IPC: H01B11/18
Filed: 1954-06-08
Abstract: 760,849. Cables. TELEGRAPH CONSTRUCTION & MAINTENANCE CO., Ltd. June 6, 1955 [June 8, 1954], No. 16816/54. Class 36. In a flexible, high-frequency coaxial cable comprising an inner conductor, insulation and an outer conductor formed of braided or helically laid wires, the outer conductor is held to the insulation by a layer of a solid or grease-like compound having the same permittivity as the insulation, thus eliminating air spaces between the outer conductor and core due to displacement of the outer conductor on flexing. The compound may be applied as a tape into which the outer conductor wires will sink. Alternatively it may be applied by extrusion, either before or after the application of the outer conductor to the core. In either case the compound will be forced between and under the conductor wires, any surplus compound being removed from the outer surface of the conductor. The insulation may consist of polythene and the compound of a medium or soft grade polythene, a polyisobutylene-based material or mixtures of polyisobutylene or butyl rubber with other elastomeric or thermoplastic resin such as polystyrene or gutta-percha hydrocarbons. The insulation may alternatively consist of polytetrafluoroethylene and the compound of a silicone elastomer, polytetrafluorethylene or polychlorofluoro hydrocarbons of low molecular weight.
Patent GB-476937-A (GB)
Title: Improvements in or relating to spools for photographic strip film
IPC: G03B17/30
Filed: 1936-06-17
Abstract: 476,937. Film spools. KODAK, Ltd. June 17, 1936, No. 16828. Convention date, July 1, 1935. [Class 120 (iii)] A spool for photographic strip film has its metal flanges attached to the metal hub by striking lugs from each flange at that part thereof which is to engage the hub and forcing the core and flange towards each other while heating them to welding temperature so that the lugs penetrate the core and become welded thereto. As shown, the lugs 14 are formed by punching apertures in the flange 12, the ends of the pair of lugs formed at each aperture 15 being bent towards each other so that, during welding, the metal of the core forms a dovetail between the lugs. The apertures may each be formed with a single lug and the major cross-sectional axis of each lug may be approximately radial with respect to the flange or inclined at an angle appreciably less than 90‹ to the radius of the flange passing through the centre of the lug. A part 16 of each aperture lies outside the outer circumference of the core and when the core is tubular, a part 17 of each aperture also lies inside the inner circumference of the core so that these parts of the aperture remain open after welding and allow surplus surfacing liquid to drain therethrough when the spool is dipped or sprayed.
Patent GB-119739-A (GB)
Title: Improvements in or relating to Covers for Jugs and other Receptacles.
Inventor: IBBOTSON OSCAR RANDOLPH
IPC: A01J9/00
Filed: 1917-11-16
Abstract: 119,739. Ibbotson, O. R., and Banwell, E. F. Nov. 16, 1917. Displaying announcements and information.- A cover for a milk jug &c. consists of a disk a on which is pivotally mounted a plate b adapted to be adjusted so that a projection e indicates on a scale c the quantity of milk to be placed in the vessel. The disk a is cut away at f to facilitate manipulation of the plate b. The cover is retained in position on the vessel by a rim j or by a number of projections formed on the disk a. A spring-controlled device may be employed for yieldingly holding the plate b in the position in which it is set. In a modification, the plate b is replaced by a narrow pointer provided with a thumb-piece &c. to facilitate adjustment.
Patent GB-477001-A (GB)
Title: Tractor binder hitch
IPC: A01D67/00
Filed: 1936-06-18
Abstract: 477,001. Tractor - trailer couplings. CLARK, T. V. June 18, 1936, No. 16921. [Class 103 (v)] A tractor f is connected to a binder or other agricultural implement by means of a substantially triangular framework which at one side e is secured to the tractor, while the rear side a is extended rearwardly and transversely to a point approximately in line with a wheel g and carries at its end a link b pivoted to move in an horizontal plane and also swivelled to the pole of the binder. A stay c may connect the frame and the tractor.